Hub profiling all-round chamfering machine

Abstract

The invention discloses a wheel hub profiling all-round chamfering machine, which relates to the technical field of wheel hub processing, and comprises a rack, a wheel hub rotating mechanism, a wheel hub clamping tool, a chamfering mechanism and a PLC (Programmable Logic Controller) control cabinet, a self-gravity sliding mechanism is additionally arranged, and the self-gravity sliding mechanism comprises a carriage mechanism, a self-gravity mechanism and an exit motor; the carriage mechanism comprises an X-axis carriage and two sets of crossed roller guide rails, and the crossed roller guide rails slide through matching of a fixed sliding block and a sliding sliding block. The self-gravity mechanism comprises a chain, three chain wheels and a tensioning wheel, the chain is connected with the three chain wheels in a penetrating mode, a balance block is arranged at the end of the portion, below the first chain wheel, of the chain, a balancing weight is arranged at the other end of the portion, below the third chain wheel, of the chain, and the middle of the chain is fixed to the X-axis carriage through a plurality of lock catches. A stand column is arranged on the X-axis carriage, and the chamfering mechanism is fixed to the stand column. According to the hub full-circumference chamfering device, profiling full-circumference chamfering can be carried out according to the full-circumference shape of a hub, the chamfering size can be adjusted, and the chamfering precision is high.

Description

Technical Field

[0001] This invention relates to the field of wheel hub processing technology, specifically to a wheel hub contour full-circumference chamfering machine. Background Technology

[0002] Currently, full-circumference chamfering of wheel hubs refers to chamfering the entire circumference of the wheel hub. Chamfering refers to the machining process of cutting the edges of a workpiece into a certain bevel. In machining, the sharp, pointed edges at the intersections of surfaces on the outer surfaces of machine parts can easily cause injury and affect assembly performance. These edges need to be smoothed out, becoming blunt surfaces – this is what is commonly referred to as chamfering.

[0003] Currently, all wheel hub chamfering uses lever chamfering machines. A lever chamfering machine is a specialized machine for chamfering the edges and corners of objects. Chamfering machines are commonly used to process the edges and corners of materials such as metal, plastic, and glass, and are frequently used in industrial manufacturing, construction, automotive, and aerospace industries. The main function of a chamfering machine is to change the shape of an object's edges and corners, making them smoother, rounder, or more beveled. However, lever chamfering machines cannot adjust the chamfering size and cannot adapt well to different wheel hub shapes, resulting in poor chamfering accuracy. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wheel hub contouring full-circumference chamfering machine, which can perform contouring full-circumference chamfering according to the full-circumference shape of the wheel hub, and the chamfering size is adjustable with high chamfering precision.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A wheel hub contouring full-circumference chamfering machine includes a frame, a wheel hub rotation mechanism, a wheel hub clamping fixture, a chamfering mechanism, and a PLC control cabinet. A gravity-driven sliding mechanism is added, comprising a slide plate mechanism, a gravity mechanism, and a release motor. The slide plate mechanism includes an X-axis slide plate and two sets of crossed roller guides. The crossed roller guides slide via a fixed slider and a sliding slider. The fixed slider is mounted on the frame, and the sliding slider is mounted on the X-axis slide plate. The gravity mechanism includes a chain, three sprockets, and a tensioning wheel. The first and second sprockets are parallel to each other below the X-axis slide plate, and the third sprocket is located below the second sprocket. All three sprockets are fixed to the frame. The chain connects the three sprockets. A balance block is located at the end of the chain below the first sprocket, and a counterweight is located at the other end of the chain below the third sprocket. The chain is fixed to the X-axis slide plate by several latches. A column is located on the X-axis slide plate, and the chamfering mechanism is fixed to the column.

[0006] As a further improvement, the chamfering mechanism includes a spindle motor, a chamfering blade, a Z-axis slide, and a lead screw adjustment device. The chamfering blade is connected to the spindle motor via a tool holder. The spindle motor is fixed on the Z-axis slide. The Z-axis slide is equipped with a lead screw adjustment device, which is fixed to the column.

[0007] As a further improvement, a cam bolt needle roller bearing is provided below the chamfering blade. The height of the chamfering blade in the cam bolt needle roller bearing is adjusted by a screw adjustment device to achieve adjustment of the chamfer size around the entire circumference of the wheel hub. The cam bolt needle roller bearing is fixed to the Z-axis slide plate by a fixing seat.

[0008] As a preferred embodiment, the lead screw adjustment device includes a lead screw and an adjustment knob, wherein the lead screw is fixed to the column by bolts.

[0009] As a further improvement, the hub rotation mechanism includes a rotary motor, a rotary spindle, and a clamping cylinder. The rotary motor and the rotary spindle are driven by a belt, and the clamping cylinder is connected to the rotary spindle through a rotary connector. The top of the rotary spindle is provided with a hub clamping fixture.

[0010] As a preferred embodiment, the weight of the balance block is 4-6 kg and the weight of the counterweight is 1-1.5 kg.

[0011] As a further improvement, the chamfering mechanism is provided with a protective cover, the protective panel on the front side of the protective cover is provided with a display screen and a control button group, and the top of the protective cover is provided with an indicator light.

[0012] As a further improvement, the hub clamping fixture is provided with a protective plate on its periphery.

[0013] This invention can process wheel hubs of any type, and the wheel hub clamping fixture is matched according to different wheel hub models.

[0014] The beneficial effects of this invention are as follows: By adding a gravity sliding mechanism, full-circumference chamfering can be performed according to the shape of the entire wheel hub. The height of the chamfering blade on the cam bolt needle roller bearing can be adjusted by the lead screw adjustment device, so that the chamfering size can be adjusted and the chamfering accuracy is high. Attached Figure Description

[0015] Figure 1 This is a side view of an embodiment of the present invention.

[0016] Figure 2 This is a front view structural diagram of an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present invention;

[0018] Figure 4 This is an embodiment of the present invention. Figure 3 Enlarged view of point A in the image;

[0019] Figure 5 This is a schematic diagram of the installation of the cross roller guide rail according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the cam bolt needle roller bearing structure according to an embodiment of the present invention.

[0021] In the diagram: 1. PLC control cabinet; 2. Exit motor; 3. Chain; 4. Tensioner wheel; 5. First sprocket; 6. Second sprocket; 7. Third sprocket; 8. Balance block; 9. Counterweight; 10. X-axis slide; 11. Fixed slider; 12. Sliding slider; 13. Column; 14. Lock; 15. Chamfering blade; 16. Z-axis slide; 17. Tool holder; 18. Cam bolt needle roller bearing; 19. Fixed base; 20. 21. Lead screw; 22. Adjustment knob; 23. Main spindle motor; 24. Rotary motor; 25. Rotary spindle; 26. Clamping cylinder; 27. Rotary connector; 28. Hub clamping fixture; 29. ​​Cross roller guide; 30. Hub; 31. Protective cover; 32. Display screen; 33. Control button group; 34. Indicator light; 35. Protective plate; 36. Outer ring; 37. Needle roller; 38. Retaining ring; 39. Bearing bolt. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] As shown in the accompanying drawings, a wheel hub contouring full-circumference chamfering machine includes a frame, a wheel hub rotation mechanism, a wheel hub clamping fixture 27, a chamfering mechanism, and a PLC control cabinet 1. A gravity sliding mechanism is added, which includes a slide plate mechanism, a gravity mechanism, and an ejection motor 2. The motor 2 is fixed on the frame and connected to a third sprocket 7 to achieve ejection. The slide mechanism includes an X-axis slide 10 and two sets of cross roller guides 28. The cross roller guides 28 slide by matching fixed sliders 11 and sliding sliders 12. The fixed sliders 11 are mounted on the frame, and the sliding sliders 12 are mounted on the X-axis slide 10. The gravity mechanism includes a chain 3, three sprockets, and a tension wheel 4. The first sprocket 5 and the second sprocket 6 are arranged parallel to each other below the X-axis slide 10, and the third sprocket 7 is arranged below the second sprocket 6. All three sprockets are fixed to the frame. The chain 3 passes through and connects the three sprockets. A balance block 8 is provided at the end of the chain 3 below the first sprocket 5, and a counterweight block 9 is provided at the other end of the chain 3 below the third sprocket 7. The balance block 8 weighs 4 kg, and the counterweight block 9 weighs 1 kg. The chain 3 is fixed to the X-axis slide 10 in the middle by several latches 14. A column 13 is provided on the X-axis slide 10, and the chamfering mechanism is fixed to the column 13. The chamfering mechanism is equipped with a protective cover 30. The protective panel on the front side of the protective cover 30 is equipped with a display screen 31 and a control button group 32. The top of the protective cover 30 is equipped with an indicator light 33. The wheel hub clamping fixture 27 is equipped with a protective plate 34.

[0024] like Figure 3 , Figure 4 As shown, the chamfering mechanism includes a spindle motor 22, a chamfering blade 15, a Z-axis slide 16, and a lead screw adjustment device. The chamfering blade 15 is connected to the spindle motor 22 via a tool holder 17. The spindle motor 22 is fixed on the Z-axis slide 16. The Z-axis slide 16 is equipped with a lead screw adjustment device, which includes a lead screw 20 and an adjustment knob 21. The lead screw 20 is fixed to the column 13 by bolts. A cam bolt needle roller bearing 18 is provided below the chamfering blade 15. The cam bolt needle roller bearing 18 includes an outer ring 35, needles 36, a retaining ring 37, and a bearing bolt 38. The height of the chamfering blade 15 within the cam bolt needle roller bearing 18 is adjusted by the lead screw adjustment device to achieve adjustment of the full circumference chamfer size of the wheel hub. The cam bolt needle roller bearing 18 is fixed to the Z-axis slide 16 via a fixing seat 19. By adjusting knob 21, the Z-axis slide 16 is moved up and down, thereby controlling the height of the chamfering blade 15 within the cam bolt needle roller bearing 18, thus controlling the chamfer size, which can be controlled within 0.3-2.5±0.2mm.

[0025] As attached Figure 1As shown, the hub rotation mechanism includes a rotary motor 23, a rotary spindle 24, and a clamping cylinder 25. The rotary motor 23 and the rotary spindle 24 are driven by a belt. The clamping cylinder 25 is connected to the rotary spindle 24 through a rotary connector 26. The top of the rotary spindle 24 is provided with a hub clamping fixture 27, which clamps the hub 29 to be processed.

[0026] In actual operation, the whole machine is controlled by PLC control cabinet 1. The manual person puts the wheel hub 29 to be processed into the wheel hub clamping fixture 27 and starts the start button in the control button group 32. The wheel hub rotation mechanism starts to rotate the wheel hub 29. The chamfering blade 15 of the chamfering mechanism moves forward to fit the entire circumference of the wheel hub for chamfering. Due to the gravity mechanism, the balance block 8 will keep the X-axis slide plate 10 moving forward, and the chamfering blade 15 will fit the entire circumference with the wheel hub 29 as it rotates. After the full circumference chamfering is completed, the motor 2 is disengaged to return the chamfering mechanism to its original position, waiting for the next repeat of the work.

Claims

1. A wheel hub profiling full-circle chamfering machine, comprising a rack, a wheel hub rotating mechanism, a wheel hub clamping tool (27), a chamfering mechanism and a PLC control cabinet (1), characterized in that: The self-gravity sliding mechanism includes a drag plate mechanism, a self-gravity mechanism and an exit motor (2), the drag plate mechanism includes an X-axis drag plate (10) and two groups of cross roller guides (28), the cross roller guides (28) are matched to realize sliding through fixed sliding blocks (11) and sliding sliding blocks (12), the fixed sliding blocks (11) are installed on the rack, and the sliding sliding blocks (12) are installed on the X-axis drag plate (10); the self-gravity mechanism includes a chain (3), three chain wheels and a tension wheel (4), wherein the first chain wheel (5) and the second chain wheel (6) are arranged in parallel below the X-axis drag plate (10), the third chain wheel (7) is arranged below the second chain wheel (6), the three chain wheels are fixed with the rack, the chain (3) penetrates through the three chain wheels, the end of the chain (3) below the first chain wheel (5) is provided with a balance block (8), the other end of the chain (3) below the third chain wheel (7) is provided with a counterweight block (9), and the chain (3) is fixed on the X-axis drag plate (10) through a plurality of buckles (14) in the middle.

2. The full circumferential chamfering machine for wheel hub profiling according to claim 1, characterized in that: The chamfering mechanism includes a main shaft motor (22), a chamfering blade (15), a Z-axis drag plate (16) and a screw rod adjusting device, the chamfering blade (15) is connected with the main shaft motor (22) through a tool bar (17), the main shaft motor (22) is fixed on the Z-axis drag plate (16), the Z-axis drag plate (16) is provided with the screw rod adjusting device, and the screw rod adjusting device is fixed with the stand column (13).

3. A full wheel flange profiling and chamfering machine as claimed in claim 2, wherein: The chamfering blade (15) below is provided with a cam bolt needle bearing (18), the height of the chamfering blade (15) in the cam bolt needle bearing (18) is adjusted through the screw rod adjusting device, the adjustment of the size of the hub full-circle chamfering is realized, the cam bolt needle bearing (18) is fixed on the Z-axis drag plate (16) through a fixed seat (19).

4. The full circumferential chamfering machine for wheel hub profiling according to claim 2, characterized in that: The screw rod adjusting device includes a screw rod (20) and an adjusting knob (21), and the screw rod (20) is fixed with the stand column (13) through a bolt.

5. The full circumferential chamfering machine for wheel hub profiling according to claim 1, characterized in that: The hub rotating mechanism includes a rotating motor (23), a rotating main shaft (24) and a clamping oil cylinder (25), the rotating motor (23) is driven through a belt with the rotating main shaft (24), the clamping oil cylinder (25) is connected with the rotating main shaft (24) through a rotary connector (26), and the rotating main shaft (24) is provided with a hub clamping tool (27) at the top.

6. A full wheel hub profiling and chamfering machine as claimed in claim 1, wherein: The weight of the balance block (8) is 4-6kg, and the weight of the counterweight block (9) is 1-1.5kg.

7. The full circumferential chamfering machine for wheel hub profiling according to claim 1, characterized in that: The chamfering mechanism is externally provided with a protective cover (30), a display screen (31) and a control button group (32) are arranged on the protective panel of the front side of the protective cover (30), and a prompt lamp (33) is arranged on the top of the protective cover (30).

8. The full circumferential chamfering machine for wheel hub profiling according to claim 1, characterized in that: The hub clamping tool (27) is externally provided with a protective plate (34).

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