A milling apparatus for machining a bearing end cap face

Abstract

The application relates to the technical field of machining, in particular to a milling device for bearing end cover surface machining, which comprises a base, a tubular support is fixedly connected to the middle of the upper surface of the base, a servo motor is fixedly connected in the support, a circular connecting piece is fixedly connected to the output end of the servo motor, a ring-shaped ring piece is fixedly connected to the outside of the connecting piece, a plurality of sliding supports are slidingly matched on the ring piece, a gear box is rotatably installed in the sliding support, and a rotating table is fixedly connected to the output shaft of the gear box. The device can position and adjust all clamps at one time through the rotation of the end face gear, the required time for clamp positioning is saved, the feeding and discharging work of the workpiece is completed under the condition of no shutdown through the rotation of the ring piece and the horizontal movement of the sliding support, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a milling machine for machining bearing end cap surfaces. Background Technology

[0002] like Figure 1 As shown, the bearing cap is a common component in gearboxes, used to seal and support the bearing and the shaft inside it. It is fixedly connected to the gearbox and bears the enormous load generated by the shaft rotation during gearbox operation. Bearing caps are generally cast into blanks, leaving a certain machining allowance on the surface. Subsequent milling with a milling cutter is required to ensure the bearing cap remains smooth and flat. During processing, the surface of a batch of bearing caps is usually milled first, followed by milling the internal curved surfaces. Milling the inclined plane containing the conical surface inside the bearing cap is a key aspect of this process.

[0003] In the existing technology, when milling the inclined surface inside the bearing cover, the bearing cover is only clamped by a simple fixture. After milling the inclined surface, the machine needs to be stopped, the bearing cover on the fixture needs to be replaced and repositioned before milling the inclined surface can continue. The process of changing the workpiece and repositioning consumes a lot of time, which greatly affects the production efficiency and is not conducive to large-scale production. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a milling device for machining bearing end cap surfaces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a milling machine for machining bearing end caps, including a base, a cylindrical support fixed to the middle of the upper surface of the base, a servo motor fixed inside the support, a circular connector fixed to the output end of the servo motor, an annular ring fixed outside the connector, multiple sliding brackets slidably fitted on the annular ring, a gearbox rotatably mounted inside the sliding brackets, a rotary table fixed to the output shaft of the gearbox, a clamp on the rotary table for clamping the workpiece, a power motor fixed to the side wall of the gearbox for inputting power to the gearbox, a column mounted on one side of the base surface, and a milling assembly at the top of the column for connecting a milling cutter.

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

[0008] Preferably, baffles are fixedly connected to both sides of the bottom of the sliding bracket, and an inner spline tube with a threaded outer wall is rotatably installed on the baffle. The inner spline tube is threadedly engaged with the slider to drive the slider to slide.

[0009] Preferably, an end face gear is rotatably mounted on the upper surface of the ring, and a dust cover is fixedly connected to the upper surface of the ring to prevent cutting chips from falling onto the end face gear. A spline shaft is rotatably mounted on the dust cover, one end of the spline shaft is slidably fitted inside the inner spline tube, and the other end of the spline shaft is fixedly connected to a driven gear, which matches the end face gear.

[0010] Preferably, a drive wheel is rotatably mounted on the bottom of the ring member, and the drive wheel abuts against the bottom surface of the end face gear to drive the end face gear to rotate.

[0011] Preferably, the ring has multiple slots that pass through it, each slot corresponding to a sliding bracket. A first hinge seat is slidably fitted inside each slot and is fixedly connected to the bottom surface of the sliding bracket.

[0012] Preferably, the bottom surface of the ring is provided with a plurality of driving structures for driving the first hinge seat to slide within the slot. The driving structure includes a hinge rod and a connecting rod. The connecting rod is fixedly connected to the bottom surface of the ring. A sliding sleeve is fixedly connected to the bottom end of the connecting rod. A sliding rod is slidably fitted inside the sliding sleeve. A second hinge seat is fixedly connected to the bottom end of the sliding rod. One end of the hinge rod is hinged to the first hinge seat, and the other end of the hinge rod is hinged to the second hinge seat.

[0013] Preferably, the support member is provided with a lifting structure to drive the slide rod to slide vertically within the sliding sleeve. The lifting structure includes a guide rod and a tube. The guide rod is horizontally fixed to the top of the slide rod, and the tube is fixed to the outer wall of the support member. The top of the tube is rotatably connected to the bottom surface of the connector. A wavy guide groove is provided on the outer wall of the tube, and the guide rod slides within the guide groove.

[0014] The milling equipment for machining bearing end caps proposed in this invention has the following advantages: the equipment can position and adjust all fixtures at once by rotating the end face gear, saving the time required for fixture positioning; and the workpiece loading and unloading can be completed without stopping the machine by rotating the ring and moving the sliding bracket, which greatly improves production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the bearing cover in operation.

[0016] Figure 2 This is a schematic diagram of the structure of a milling equipment for machining the bearing end cap surface proposed in this invention.

[0017] Figure 3This is a top view of a milling machine for machining the bearing end cap surface proposed in this invention.

[0018] Figure 4 This invention proposes a milling device for machining the bearing end cap surface. Figure 3 Sectional view along the AA direction.

[0019] Figure 5 This invention proposes a milling device for machining the bearing end cap surface. Figure 3 Cross-sectional view along the BB direction.

[0020] Figure 6 This invention proposes a milling device for machining the bearing end cap surface. Figure 5 Enlarged view of point D in the middle.

[0021] Figure 7 This is a schematic diagram of the base of a milling equipment for machining the bearing end cap surface proposed in this invention.

[0022] Figure 8 This is a schematic diagram of the bottom structure of a ring-shaped milling device for machining the bearing end cap surface according to the present invention.

[0023] Figure 9 This is a schematic diagram of the structure of a milling machine for machining the bearing end cap surface proposed in this invention, showing the fit between a ring and a pipe.

[0024] Figure 10 This invention proposes a milling device for machining the bearing end cap surface. Figure 9 Enlarged view of point E in the middle.

[0025] Figure 11 This is a schematic diagram of the structure of the upper surface of the ring part of a milling equipment for machining the bearing end cap surface proposed in this invention.

[0026] Figure 12 This invention proposes a milling device for machining the bearing end cap surface. Figure 11 Enlarged view of point C.

[0027] Figure 13 This is a front view of the sliding bracket of a milling equipment for machining the bearing end cover surface proposed in this invention.

[0028] Figure 14 This invention provides a schematic diagram of the structure of a sliding bracket for a milling machine used for machining the bearing end cap surface. Figure 1 .

[0029] Figure 15 This invention provides a schematic diagram of the structure of a sliding bracket for a milling machine used for machining the bearing end cap surface. Figure 2 .

[0030] Figure 16This invention provides a schematic diagram of the structure of a sliding bracket for a milling machine used for machining the bearing end cap surface. Figure 3 .

[0031] Figure 17 This is a schematic diagram of the internal structure of the sliding bracket of a milling equipment for machining the bearing end cover surface proposed in this invention.

[0032] Figure 18 This is a schematic diagram of the working state of the milling cutter in a milling device for machining the bearing end cap surface proposed in this invention. Figure 1 .

[0033] Figure 19 This is a schematic diagram of the working state of the milling cutter in a milling device for machining the bearing end cap surface proposed in this invention. Figure 2 .

[0034] In the diagram: 1. Base; 2. Column; 3. Milling assembly; 4. Support component; 5. Servo motor; 6. Pipe fitting; 601. Guide groove; 7. Connector; 8. Ring component; 9. Groove; 10. Dust cover; 11. End face gear; 12. Splined shaft; 13. Driven gear; 14. Internal spline tube; 15. Sliding bracket; 16. Baffle; 17. Slider; 18. Movable rod; 19. First hinge seat; 20. Hinge rod; 21. Second hinge seat; 22. Slide rod; 23. Guide rod; 24. Gearbox; 25. Rotary table; 26. Fixture; 27. Power motor; 28. Sliding sleeve; 29. ​​Connecting rod; 30. Drive wheel. Detailed Implementation

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

[0036] Reference Figures 2-5 and Figures 13-16 A milling machine for machining bearing end caps includes a base 1. A cylindrical support 4 is fixedly connected to the middle of the upper surface of the base 1. A servo motor 5 is fixedly connected inside the support 4. A circular connector 7 is fixedly connected to the output end of the servo motor 5 to drive the connector 7 to rotate. A ring-shaped ring 8 is fixedly connected to the outside of the connector 7. Multiple sliding brackets 15 are slidably fitted on the ring 8. A gearbox 24 is rotatably mounted inside the sliding brackets 15. A rotary table 25 is fixedly connected to the output shaft of the gearbox 24. A clamp 26 is provided on the rotary table 25 to clamp the workpiece. A power motor 27 is fixedly connected to the side wall of the gearbox 24 to input power to the gearbox 24. A column 2 is installed on one side of the surface of the base 1. A milling assembly 3 is provided at the top of the column 2 to connect the milling cutter.

[0037] When the equipment is working, the power motor 27 drives the rotary table 25 to rotate through the gearbox 24. The clamp 26 on the rotary table 25 clamps and fixes the workpiece. During the rotation of the rotary table 25, the workpiece will be rotated.

[0038] Secondly, such as Figure 18 and Figure 19 As shown, the gearbox 24 is rotated on the sliding bracket 15 to adjust the tilt angle of the workpiece, so that a 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 and perform milling work on the conical surface.

[0040] like Figures 13-17 As shown, the sliding bracket 15 is provided with an adjustment structure for adjusting the tilt angle of the clamp 26. The adjustment structure includes a slider 17 and a movable rod 18. The slider 17 is slidably fitted inside the sliding bracket 15. One end of the movable rod 18 is hinged to the bottom of the gearbox 24, and the other end of the movable rod 18 is hinged to the top of the slider 17. Baffles 16 are fixedly connected to both sides of the bottom of the sliding bracket 15. An internal spline tube 14 with threads on the outer wall is rotatably installed on the baffle 16. The internal spline tube 14 is threadedly fitted with the slider 17 to drive the slider 17 to slide.

[0041] When the inner spline tube 14 rotates, it drives the slider 17 to move horizontally inside the sliding bracket 15 through the surface threads. During the movement of the slider 17, it drives the gearbox 24 to rotate on the sliding bracket 15 through the movable rod 18, thereby adjusting the angle of the workpiece inside the fixture 26.

[0042] like Figure 11 , Figure 12 and Figure 17 As shown, an end face gear 11 is rotatably mounted on the upper surface of the ring 8. A dust cover 10 is fixedly connected to the upper surface of the ring 8 to prevent cutting chips from falling onto 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 inside the inner spline tube 14, and the other end of the spline shaft 12 is fixedly connected to a driven gear 13, which matches the end face gear 11.

[0043] When the end face gear 11 rotates, it will simultaneously drive all the driven gears 13 to rotate. The rotation of the driven gears 13 will drive the spline shaft 12 to rotate. The spline shaft 12 is engaged with the inner spline tube 14. During the rotation of the spline shaft 12, it will drive the inner spline tube 14 to rotate.

[0044] like Figure 5 and Figure 6As shown, a drive wheel 30 is rotatably mounted on the bottom of the ring 8. The drive wheel 30 abuts against the bottom surface of the end face gear 11 to drive the end face gear 11 to rotate.

[0045] The operator manually drives the drive wheel 30 at the bottom of the ring 8 to rotate. During the rotation of the drive wheel 30, the end face gear 11 is driven, thereby causing the end face gear 11 to drive all the driven gears 13 to rotate.

[0046] like Figures 8-11 As shown, multiple slots 9 are provided through the ring 8, and each slot 9 corresponds to a sliding bracket 15. A first hinge seat 19 is slidably fitted inside the slot 9, and the first hinge seat 19 is fixedly connected to the bottom surface of the sliding bracket 15.

[0047] When the first hinge seat 19 slides within the slot 9, it will drive the sliding bracket 15 to move synchronously, thereby driving the workpiece to move, so as to complete the loading and unloading of the workpiece during the milling process.

[0048] like Figure 8 , Figure 9 and Figures 13-17 As shown, the bottom surface of the ring 8 is provided with multiple driving structures to drive the first hinge seat 19 to slide within the slot 9. The driving structure includes a hinge rod 20 and a connecting rod 29. The connecting rod 29 is fixedly connected to the bottom surface of the ring 8. A sliding sleeve 28 is fixedly connected to the bottom end of the connecting rod 29. A sliding rod 22 is slidably fitted inside the sliding sleeve 28. A second hinge seat 21 is fixedly connected to the bottom end of the sliding rod 22. One end of the hinge rod 20 is hinged to the first hinge seat 19, and the other end of the hinge rod 20 is hinged to the second hinge seat 21.

[0049] The sliding sleeve 28 is fixedly connected to the ring 8 via the connecting rod 29. When the sliding rod 22 moves vertically within the sliding sleeve 28, it will drive the second hinge seat 21 to move synchronously. When the second hinge seat 21 moves vertically, it will drive the first hinge seat 19 to slide within the slot 9 via the hinge rod 20, thereby driving the sliding bracket 15 to move.

[0050] like Figure 7 , Figure 9 and Figure 10 As shown, the support member 4 is provided with a lifting structure to drive the slide rod 22 to slide vertically within the sliding sleeve 28. The lifting structure includes a guide rod 23 and a tube 6. The guide rod 23 is horizontally fixed to the top of the slide rod 22, and the tube 6 is fixed to the outer wall of the support member 4. The top of the tube 6 is rotatably connected to the bottom surface of the connector 7. A wave-shaped guide groove 601 is provided on the outer wall of the tube 6, and the guide rod 23 slides within the guide groove 601.

[0051] When the servo motor 5 is powered on, it drives the connector 7 to rotate. The rotation of the connector 7 causes the ring 8 to rotate. The rotation of the ring 8 causes the sliding sleeve 28 to rotate around the tube 6 through the connecting rod 29. The sliding rod 22 inside the sliding sleeve 28 will also rotate around the tube 6. Since the guide rod 23 at the top of the sliding rod 22 is in sliding engagement with the guide groove 601 on the surface of the tube 6, the guide rod 23 will move up and down along the guide groove 601 during the rotation of the sliding rod 22 around the tube 6, so that the sliding rod 22 slides vertically inside the sliding sleeve 28.

[0052] Working principle:

[0053] A workpiece is fixed in a fixture 26;

[0054] Manually rotate the drive wheel 30, which drives the end face gear 11 to rotate. The rotation of the end face gear 11 will drive all the driven gears 13 to rotate. The rotation of the driven gears 13 will drive the spline shaft 12 to rotate. The spline shaft 12 will drive the inner spline tube 14 to rotate. The inner spline tube 14 will drive the slider 17 to slide through the threaded engagement. The sliding of the slider 17 will drive the gearbox 24 to deflect at the top of the sliding bracket 15 through the movable rod 18, so as to adjust the angle of the workpiece. After one generatrix of the conical surface of the workpiece is in a vertical state, the angle positioning work of all the fixtures 26 is completed. The remaining fixtures 26 do not need to be positioned anymore and can directly fix the workpiece.

[0055] After starting the power motor 27 to rotate the workpiece, adjust the position of the column so that the milling cutter abuts against the conical surface of the workpiece, and drive the milling cutter to rotate through the milling assembly 3 to perform milling work on the conical surface of the workpiece.

[0056] After the workpiece is processed, the servo motor 5 is started. The servo motor 5 drives the connector 7 to rotate. The rotation of the connector 7 causes the ring 8 to rotate. The rotation of the ring 8 will cause the workpiece to be processed in the next station to move towards the milling cutter. At the same time, the rotation of the ring 8 will also drive the sliding sleeve 28 to rotate around the tube 6 through the connecting rod 29. The sliding rod 22 inside the sliding sleeve 28 will also rotate around the tube 6. Since the guide rod 23 at the top of the sliding rod 22 is in sliding engagement with the guide groove 601 on the surface of the tube 6, the guide rod 23 will make a lifting motion along the guide groove 601 during the rotation of the sliding rod 22 around the tube 6.

[0057] Within one cycle of vertical movement:

[0058] The slide bar 22 moves downward first, and the slide bar 22 drives the second hinge seat 21 to move downward. The second hinge seat 21 drives the first hinge seat 19 arranged in a circle to make a centripetal movement through the hinge bar 20. The centripetal movement of the first hinge seat 19 will cause the sliding bracket 15 to move closer to the connector 7, thereby causing the workpiece in the fixture 26 to move horizontally. After the workpiece moves, it separates from the milling cutter.

[0059] After the machined workpiece separates from the milling cutter, the ring 8 rotates to make way for the station where the milling cutter is located, so that the workpiece to be machined in the next station can move toward the milling cutter.

[0060] After the finished workpiece vacates its position, the workpiece to be processed moves to the position of the milling cutter. At this time, the slide bar 22 begins to move upward, and the slide bar 22 drives the second hinge seat 21 to move upward. The second hinge seat 21 drives the first hinge seat 19 arranged in a circle to make centrifugal motion through the hinge rod 20. The centrifugal motion of the first hinge seat 19 will cause the sliding bracket 15 to move away from the connector 7, thereby causing the workpiece to be processed in the fixture 26 to move closer to the milling cutter, so that the conical surface inside the workpiece to be processed abuts against the milling cutter, so as to complete the loading and unloading of the workpiece without stopping the machine.

[0061] Since the completed workpiece vacates the workstation, the completed workpiece can be replaced at any time without stopping the machine to replace the workpiece.

[0062] Compared with the prior art, the milling equipment for processing bearing end cover surfaces provided by the present invention can position and adjust all the fixtures 26 at one time by rotating the end face gear 11, saving the time required for fixture positioning. The workpiece loading and unloading work can be completed without stopping the machine by rotating the ring 8 and moving the sliding bracket 15, which greatly improves production efficiency.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A milling machine for machining the end cap surface of a bearing, comprising a base (1), wherein a cylindrical support member (4) is fixedly connected to the middle of the upper surface of the base (1), and a servo motor (5) is 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 ring-shaped member (8) is fixedly connected to the outside of the connector (7). Multiple sliding brackets (15) are slidably fitted on the ring (8). A gearbox (24) is rotatably installed inside the sliding brackets (15). A rotary table (25) is fixedly connected to the output shaft of the gearbox (24). A clamp (26) is provided on the rotary table (25) for clamping the workpiece. A power motor (27) is fixedly connected to the side wall of the gearbox (24) to input power to the gearbox (24). A column (2) is installed on one side of the surface of the ring (8). A milling assembly (3) is provided at the top of the column (2) to connect the milling cutter. An end face gear (11) is rotatably installed on the upper surface of the ring (8). A dust cover (10) is fixedly connected to the upper surface of the ring (8) to prevent cutting chips from falling on the end face gear (11). A spline shaft (12) is rotatably installed on the dust cover (10). One end of the spline shaft (12) is slidably fitted in the inner spline tube (14). The other end of the spline shaft (12) is fixedly connected to a driven gear (13). The driven gear (13) matches the end face gear (11). The sliding bracket (15) is provided with an adjustment structure for adjusting the tilt angle of the clamp (26). The adjustment structure includes a slider (17) and a movable rod (18). The slider (17) is slidably fitted inside the sliding bracket (15). One end of the movable rod (18) is hinged to the bottom of the gearbox (24), and the other end of the movable rod (18) is hinged to the top of the slider (17). Baffles (16) are fixedly connected to both sides of the bottom of the sliding bracket (15). An inner spline tube (14) with a threaded outer wall is rotatably installed on the baffle (16). The inner spline tube (14) is threadedly fitted with the slider (17) to drive the slider (17) to slide. A drive wheel (30) is rotatably installed at the bottom of the ring (8). The drive wheel (30) abuts against the bottom surface of the end face gear (11) to drive the end face gear (11) to rotate.

2. The milling equipment for machining the bearing end cap surface according to claim 1, characterized in that, The ring (8) has multiple slots (9) through it, and each slot (9) corresponds to a sliding bracket (15). A first hinge seat (19) is slidably fitted inside the slot (9), and the first hinge seat (19) is fixedly connected to the bottom surface of the sliding bracket (15).

3. The milling equipment for machining the bearing end cap surface according to claim 2, characterized in that, The bottom surface of the ring (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 includes a hinge rod (20) and a connecting rod (29). The connecting rod (29) is fixedly connected to the bottom surface of the ring (8). A sliding sleeve (28) is fixedly connected to the bottom end of the connecting rod (29). A sliding rod (22) is slidably fitted inside the sliding sleeve (28). A second hinge seat (21) is fixedly connected to the bottom end of the sliding rod (22). One end of the hinge rod (20) is hinged to the first hinge seat (19), and the other end of the hinge rod (20) is hinged to the second hinge seat (21).

4. The milling equipment for machining the bearing end cap surface according to claim 3, characterized in that, The support member (4) is provided with a lifting structure to drive the slide rod (22) to slide vertically in the sliding sleeve (28). The lifting structure includes a guide rod (23) and a tube (6). The guide rod (23) is horizontally fixed to the top of the slide rod (22). The tube (6) is fixed to the outer wall of the support member (4). The top of the tube (6) is rotatably connected to the bottom surface of the connector (7). A wave-shaped guide groove (601) is opened on the outer wall of the tube (6). The guide rod (23) slides in the guide groove (601).

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