Milling cutter disc for spiral bevel gear machining
By coordinating the gear ring, the first gear, the rotating shaft, the slide groove, the slider, and the drive assembly, the problem of cumbersome milling cutter blade angle adjustment is solved, enabling rapid angle adjustment and lubrication, and improving the machining efficiency of spiral bevel gears.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN DONGAN LIFENG CUTTER
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-01
AI Technical Summary
The existing milling cutter head requires unscrewing, rotating, and rescrewing when adjusting the cutting edge angle, which makes the process cumbersome and affects processing efficiency.
The gear ring, first gear, rotating shaft, slide groove, slider and drive assembly are used to achieve rapid angle adjustment; the internal parts of the adjustment mechanism are lubricated by a lubrication mechanism; and the disc is fixed to the spindle of the gear milling machine by a fixing mechanism.
It enables rapid angle adjustment of the milling cutter, reduces part wear and wobble, and improves machining efficiency and accuracy.
Smart Images
Figure CN224182149U_ABST
Abstract
Description
A milling cutter disc for machining spiral bevel gears Technical Field
[0001] This utility model relates to the field of spiral bevel gear machining technology, specifically a milling cutter disc for spiral bevel gear machining. Background Technology
[0002] Spiral bevel gears are bevel gears with a curved pitch line on their tooth surface. Spiral bevel gears are a type of bevel gear. Bevel gears are key components for transmitting motion and torque. When machining spiral bevel gears, milling is required using a milling cutter.
[0003] In existing milling cutter discs, the milling cutter inserts are first installed on the cutter holder of the milling cutter disc, and then the milling cutter disc is connected to the spindle of an external gear milling machine. The spindle of the gear milling machine drives the milling cutter disc to rotate, thereby milling the spiral bevel gear.
[0004] However, when adjusting the angle of the cutting blades on the milling cutter head, the operator needs to first release the blades from their fixation, then rotate multiple blades to the specified angle in sequence, and finally fix the blades back in place. This makes the process of adjusting the blade angle cumbersome, time-consuming, and seriously affects processing efficiency. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this utility model provides a milling cutter disc for machining spiral bevel gears. It solves the problem that when adjusting the angle of the cutting blades on the milling cutter disc, the operator needs to first release the blades from their fixation, then rotate multiple blades to the specified angle in sequence, and finally re-fix the blades. This process is cumbersome, time-consuming, and seriously affects machining efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a milling cutter disc for machining bevel gears, comprising a disc body, a tool holder disposed on the front side of the disc body, and further comprising: an adjustment mechanism disposed inside the disc body; a lubrication mechanism disposed above the disc body; and a fixing mechanism disposed on the back side of the disc body; wherein, the adjustment mechanism quickly adjusts the angle of the milling cutter blade on the tool holder, the lubrication mechanism lubricates the parts inside the adjustment mechanism, and the fixing mechanism fixes the disc body to the spindle of the milling machine.
[0007] Preferably, the adjusting mechanism includes a gear ring disposed inside the disc body; a first gear meshing with the inner wall of the gear ring; a rotating shaft fixedly connected to the inner wall of the first gear and rotatably connected to the inner wall of the disc body via a sealed bearing, with its end fixedly connected to the back of the tool holder; a sliding groove formed on the inner wall of the disc body; a slider fixedly connected to the outer wall of the gear ring, with the outer wall slidably engaged with the inner wall of the sliding groove; and a driving component disposed on the side wall of the disc body; wherein, the gear ring drives the slider to slide in the sliding groove, thereby causing the first gear to drive the rotating shaft to rotate, ultimately adjusting the angle of the milling cutter insert on the tool holder.
[0008] Preferably, the drive assembly includes a housing fixed to the side wall of the disc; a knob disposed at the bottom of the housing; a worm gear rotatably connected to the inner wall of the housing via a sealed bearing, and its end fixed to the top of the knob; a worm wheel meshing with one side of the worm gear; a second gear fixed to the front of the worm wheel and rotatably connected to the inner wall of the housing via a pin, and its side meshing with the side wall of the gear ring; wherein, driven by the knob, the worm gear causes the worm wheel to drive the second gear to rotate, thereby causing the gear ring to rotate.
[0009] Preferably, the lubrication mechanism includes: a pipe connected to the top of the disc; a sealing ring fixed to the inner wall of the pipe; a plug plate attached to the outer wall of the sealing ring; a horizontal column fixed to the lower part of the inner wall of the pipe; two ends of a spring fixed to the bottom of the plug plate and the top of the horizontal column, respectively; and a vertical rod fixed to the bottom of the plug plate and sleeved on the inner wall of the spring, with its end penetrating the horizontal column and movably connected to it. The spring and the vertical rod move under the drive of the plug plate, the plug plate leaves the sealing ring, the pipe is opened, and lubricating oil is injected into the disc through the pipe.
[0010] Preferably, the fixing mechanism includes a collar fixed to the back of the disc body; a protrusion fixed to the inner wall of the disc body; a stud threaded to the inner wall of the collar; and a turntable fixed to the end of the stud. The protrusion is inserted into the main shaft under the drive of the collar, and the stud is rotated into the main shaft under the drive of the turntable, thus fixing the disc body to the main shaft.
[0011] Beneficial effects
[0012] This utility model provides a milling cutter disc for machining spiral bevel gears. It offers the following advantages: This milling cutter disc, through the cooperation of a gear ring, a first gear, a rotating shaft, a sliding groove, a slider, and a drive assembly, enables rapid angle adjustment of the milling cutter. It solves the problem that adjusting the angle of the inserts on the milling cutter disc previously required the operator to first release the inserts from their fixings, then rotate multiple inserts sequentially to the specified angle, and finally re-fix the inserts. This process was cumbersome, time-consuming, and severely impacted machining efficiency.
[0013] By using pipes, sealing rings, blocking plates, crossbars, springs, and uprights, lubrication of the internal parts of the adjustment mechanism is achieved. This solves the problem that excessive wear of parts during operation can increase the clearance between the internal parts of the adjustment mechanism, causing wobbling or jamming when adjusting the milling cutter blade angle, making it difficult to accurately position the required angle. Attached Figure Description
[0014] Figure 1 is a schematic diagram of the structure of this utility model;
[0015] Figure 2 is a schematic diagram of the appearance of this utility model;
[0016] Figure 3 is an exploded view of Figure 1;
[0017] Figure 4 is a schematic diagram of the gear ring, the first gear and the worm gear in Figure 1;
[0018] Figure 5 is a schematic diagram of the gear ring, slide groove and disc body in Figure 1.
[0019] In the diagram: 1. Disc body; 2. Tool holder; 3. Adjustment mechanism; 31. Gear ring; 32. First gear; 33. Rotating shaft; 34. Slide groove; 35. Slider; 36. Drive assembly; 361. Housing; 362. Knob; 363. Worm; 364. Worm wheel; 365. Second gear; 4. Lubrication mechanism; 41. Pipe; 42. Sealing ring; 43. Block plate; 44. Horizontal column; 45. Spring; 46. Vertical rod; 5. Fixing mechanism; 51. Collar; 52. Protrusion; 53. Turntable; 54. Stud. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] When adjusting the angle of the cutting blades on the milling cutter head, the operator needs to first release the blades from their fixation, then rotate multiple blades to the specified angle in sequence, and finally fix the blades back in place. This process is cumbersome, time-consuming, and seriously affects processing efficiency.
[0022] In view of this, the present invention provides a milling cutter disc for machining spiral bevel gears. Through the cooperation of the gear ring, the first gear, the rotating shaft, the slide groove, the slider and the drive assembly, the angle of the milling cutter is quickly adjusted. This solves the problem that when adjusting the angle of the inserts on the milling cutter disc, the operator needs to first release the inserts from their fixing, then rotate multiple inserts to the specified angle in sequence, and then re-fix the inserts. This process is cumbersome, time-consuming and seriously affects the machining efficiency.
[0023] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.
[0024] Example 1: As shown in Figures 1-5, a milling cutter disc for machining spiral bevel gears includes a disc body 1, a tool holder 2 on the front side of the disc body 1, and an adjustment mechanism 3, a lubrication mechanism 4, and a fixing mechanism 5. The adjustment mechanism 3 is located inside the disc body 1; the lubrication mechanism 4 is located above the disc body 1; and the fixing mechanism 5 is located on the back side of the disc body 1. The adjustment mechanism 3 allows for rapid angle adjustment of the milling cutter blades on the tool holder 2, the lubrication mechanism 4 lubricates the parts inside the adjustment mechanism 3, and the fixing mechanism 5 fixes the disc body 1 to the spindle of the milling machine.
[0025] In the specific implementation process, it is worth noting that the surface of the tool holder 2 is provided with a placement groove, and the inner wall of the tool holder 2 is threaded with bolts. When machining the spiral bevel gear, firstly, the operator inserts the milling cutter into the placement groove on the surface of the tool holder 2. After that, the bolts on the tool holder 2 are rotated to fix the cutter. Then, the milling cutter disc is fixed to the spindle of the gear milling machine through the fixing mechanism 5. The gear milling machine is started, which drives the disc 1 to rotate and begin machining the spiral bevel gear. The angle of the cutter can be quickly adjusted through the adjustment mechanism 3. The lubrication mechanism 4 lubricates the parts inside the adjustment mechanism 3 to reduce friction between the parts.
[0026] Specifically, in machining spiral bevel gears, the operator first inserts the milling cutter into the placement groove on the surface of the cutter holder 2. After that, the bolts on the cutter holder 2 are rotated to fix the cutter in place. Then, the milling cutter disc is fixed to the spindle of the milling machine through the fixing mechanism 5. The milling machine is started, which drives the disc 1 to rotate and begin machining the spiral bevel gear. The angle of the cutter can be quickly adjusted through the adjustment mechanism 3. The lubrication mechanism 4 lubricates the parts inside the adjustment mechanism 3 to reduce friction between the parts.
[0027] Example 2: As shown in Figures 1-5, the adjustment mechanism 3 includes a gear ring 31, a first gear 32, a rotating shaft 33, a sliding groove 34, a slider 35, and a drive assembly 36. The gear ring 31 is disposed inside the disc body 1; the first gear 32 is meshed with the inner wall of the gear ring 31; the rotating shaft 33 is fixed to the inner wall of the first gear 32 and rotatably connected to the inner wall of the disc body 1 through a sealed bearing, and its end is fixed to the back of the tool holder 2; the sliding groove 34 is opened on the inner wall of the disc body 1; the slider 35 is fixed to the outer wall of the gear ring 31, and its outer wall is slidably engaged with the inner wall of the sliding groove 34; the drive assembly 36 is disposed on the side wall of the disc body 1; wherein, the gear ring 31 drives the slider 35 to slide in the sliding groove 34, thereby causing the first gear 32 to drive the rotating shaft 33 to rotate, ultimately adjusting the angle of the milling cutter blade on the tool holder 2;
[0028] In the specific implementation process, it is worth noting that when adjusting the angle of the milling cutter, the gear ring 31 is mechanically rotated, the gear ring 31 drives the slider 35 to rotate, the slider 35 slides in the slide groove 34, the gear ring 31 drives the first gear 32 to rotate, the first gear 32 drives the rotating shaft 33 to rotate, the rotating shaft 33 drives the tool holder 2 to rotate, and the tool holder 2 drives the milling cutter to rotate, thereby realizing the rapid adjustment of the angle of the milling cutter.
[0029] Furthermore, the drive assembly 36 includes a housing 361, a knob 362, a worm 363, a worm wheel 364, and a second gear 365: the housing 361 is fixed to the side wall of the disc body 1; the knob 362 is disposed at the bottom of the housing 361; the worm 363 is rotatably connected to the inner wall of the housing 361 through a sealed bearing, and its end is fixed to the top of the knob 362; the worm wheel 364 is meshed with one side of the worm 363; the second gear 365 is fixed to the front of the worm wheel 364, and is rotatably connected to the inner wall of the housing 361 through a pin, and one side is meshed with the side wall of the gear ring 31; wherein, under the drive of the knob 362, the worm 363 causes the worm wheel 364 to drive the second gear 365 to rotate, thereby causing the gear ring 31 to rotate;
[0030] In the specific implementation process, it is worth noting that when the operator rotates the knob 362, the knob 362 drives the worm 363 to rotate, the worm 363 drives the worm wheel 364 to rotate, the worm wheel 364 drives the second gear 365 to rotate, and the second gear 365 drives the gear ring 31 to rotate. Among them, the self-locking characteristic between the worm 363 and the worm wheel 364 locks the gear ring 31 after it has rotated, thereby driving the gear ring 31 to rotate.
[0031] Furthermore, the lubrication mechanism 4 includes a pipe 41, a sealing ring 42, a plug plate 43, a horizontal column 44, a spring 45, and a vertical rod 46. The pipe 41 is connected to the top of the disc body 1; the sealing ring 42 is fixed to the inner wall of the pipe 41; the plug plate 43 is attached to the outer wall of the sealing ring 42; the horizontal column 44 is fixed to the lower part of the inner wall of the pipe 41; the two ends of the spring 45 are respectively fixed to the bottom of the plug plate 43 and the top of the horizontal column 44; the vertical rod 46 is fixed to the bottom of the plug plate 43 and sleeved on the inner wall of the spring 45, and its end passes through the horizontal column 44 and is movably connected to the horizontal column 44; wherein, the spring 45 and the vertical rod 46 move under the drive of the plug plate 43, the plug plate 43 leaves the sealing ring 42, opening the pipe 41 and injecting lubricating oil into the disc body 1 through the pipe 41;
[0032] In the specific implementation process, it is worth noting that when lubricating the parts inside the adjustment mechanism 3, the operator applies external force to the blocking plate 43, for example, by pushing the blocking plate 43 with a push rod controlled by a mechanical device or control system. The blocking plate 43 compresses the spring 45, and the blocking plate 43 drives the upright rod 46 to move. The upright rod 46 moves in the horizontal column 44, limiting the blocking plate 43. Finally, the blocking plate 43 leaves the sealing ring 42, opening the pipe 41. The operator injects lubricating oil into the disc 1 through the pipe 41. After completion, the external force is removed, and the spring 45 rebounds, causing the blocking plate 43 to rise and contact the sealing ring 42. The sealing ring 42 improves the sealing between the pipe 41 and the blocking plate 43, closing the pipe 41. The operator can periodically lubricate the parts, thus achieving lubrication of the parts inside the adjustment mechanism 3.
[0033] Furthermore, the fixing mechanism 5 includes a collar 51, a protrusion 52, a turntable 53, and a stud 54. The collar 51 is fixed to the back of the disc body 1; the protrusion 52 is fixed to the inner wall of the disc body 1; the stud 54 is threaded to the inner wall of the collar 51; and the turntable 53 is fixed to the end of the stud 54. The protrusion 52 is inserted into the main shaft under the drive of the collar 51, and at the same time, the stud 54 is rotated into the main shaft under the drive of the turntable 53, thus fixing the disc body 1 to the main shaft.
[0034] In the specific implementation process, it is worth noting that when installing the milling cutter disc, the operator aligns the collar 51 with the main spindle of the gear milling machine. The collar 51 drives the convex strip 52 to move, and the convex strip 52 inserts into the corresponding groove of the main spindle, which plays a preliminary positioning role. Then, the operator rotates the turntable 53, which drives the stud 54 to rotate in the collar 51, and finally rotates into the threaded hole in the main spindle of the gear milling machine, fixing the collar 51 in place, thereby fixing the milling cutter disc to the main spindle of the gear milling machine.
[0035] Specifically, when installing the milling cutter head, firstly, the operator aligns the collar 51 with the milling machine spindle. The collar 51 drives the convex strip 52 to move, and the convex strip 52 inserts into the corresponding groove of the spindle. Then, the operator rotates the turntable 53, which drives the stud 54 to rotate within the collar 51, eventually rotating it into the threaded hole in the milling machine spindle, thus fixing the collar 51 and securing the milling cutter head to the milling machine spindle. When adjusting the angle of the milling cutter, the operator rotates the knob 362, which drives the worm gear 363 to rotate. The worm gear 363 drives the worm wheel 364 to rotate, which in turn drives the second gear 365 to rotate. The second gear 365 drives the gear ring 31 to rotate, which in turn drives the slider 35 to rotate. The slider 35 slides in the groove 34, which in turn drives the first gear 32 to rotate. The first gear 32 then drives... The rotating shaft 33 rotates, which drives the tool holder 2 to rotate. The tool holder 2 drives the milling cutter to rotate, adjusting the angle of the milling cutter. When lubricating the parts inside the adjustment mechanism 3, the operator applies external force to the blocking plate 43, for example, by pushing the blocking plate 43 through a push rod controlled by a mechanical device or control system. The blocking plate 43 compresses the spring 45, causing the blocking plate 43 to move the upright 46. The upright 46 moves in the horizontal column 44, limiting the blocking plate 43. Finally, the blocking plate 43 leaves the sealing ring 42, opening the pipe 41. The operator injects lubricating oil into the disc 1 through the pipe 41. After completion, the external force is removed, and the spring 45 rebounds, causing the blocking plate 43 to rise and contact the sealing ring 42. The sealing ring 42 improves the sealing between the pipe 41 and the blocking plate 43, closing the pipe 41 and lubricating the parts inside the adjustment mechanism 3.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A milling cutter disc for machining spiral bevel gears, comprising a disc body (1), characterized in that: The front of the disc body (1) is provided with a tool holder (2), and the milling cutter disc for machining spiral bevel gears further includes: an adjustment mechanism (3) disposed inside the disc body (1); a lubrication mechanism (4) disposed above the disc body (1); and a fixing mechanism (5) disposed on the back of the disc body (1); wherein, the angle of the milling cutter blade on the tool holder (2) is quickly adjusted by the adjustment mechanism (3), the parts inside the adjustment mechanism (3) are lubricated by the lubrication mechanism (4), and the disc body (1) is fixed to the spindle of the gear milling machine by the fixing mechanism (5).
2. The milling cutter disc for machining spiral bevel gears according to claim 1, characterized in that: The adjustment mechanism (3) includes: a gear ring (31) disposed inside the disc body (1); a first gear (32) meshing with the inner wall of the gear ring (31); a rotating shaft (33) fixed to the inner wall of the first gear (32) and rotatably connected to the inner wall of the disc body (1) through a sealed bearing, and its end fixed to the back of the tool holder (2); a sliding groove (34) formed on the inner wall of the disc body (1); a slider (35) fixed to the outer wall of the gear ring (31) and its outer wall slidably engaged with the inner wall of the sliding groove (34); and a drive assembly (36) disposed on the side wall of the disc body (1). The gear ring (31) drives the slider (35) to slide in the sliding groove (34), thereby causing the first gear (32) to drive the rotating shaft (33) to rotate, and finally adjusting the angle of the milling cutter blade on the tool holder (2).
3. A milling cutter disc for machining spiral bevel gears according to claim 2, characterized in that: The drive assembly (36) includes: a housing (361) fixed to the side wall of the disc (1); a knob (362) disposed at the bottom of the housing (361); a worm (363) rotatably connected to the inner wall of the housing (361) via a sealed bearing, and its end fixed to the top of the knob (362); a worm wheel (364) meshing with one side of the worm (363); and a second gear (365) fixed to the front of the worm wheel (364) and rotatably connected to the inner wall of the housing (361) via a pin, and its side meshing with the side wall of the gear ring (31); wherein, under the drive of the knob (362), the worm (363) causes the worm wheel (364) to drive the second gear (365) to rotate, thereby causing the gear ring (31) to rotate.
4. A milling cutter disc for machining spiral bevel gears according to claim 1, characterized in that: The lubrication mechanism (4) includes: a pipe (41) connected to the top of the disc (1); a sealing ring (42) fixed to the inner wall of the pipe (41); a blocking plate (43) fitted to the outer wall of the sealing ring (42); a horizontal column (44) fixed to the lower part of the inner wall of the pipe (41); a spring (45) with its two ends fixed to the bottom of the blocking plate (43) and the top of the horizontal column (44) respectively; and a vertical rod (46) fixed to the bottom of the disc (1). The bottom of the blocking plate (43) is fitted onto the inner wall of the spring (45), and its end passes through the horizontal column (44) and is movably connected to the horizontal column (44); wherein, the spring (45) and the upright (46) move under the drive of the blocking plate (43), the blocking plate (43) leaves the sealing ring (42), opens the pipe (41), and injects lubricating oil into the disc body (1) through the pipe (41).
5. A milling cutter disc for machining spiral bevel gears according to claim 1, characterized in that: The fixing mechanism (5) includes: a collar (51) fixed to the back of the disc body (1); a protrusion (52) fixed to the inner wall of the disc body (1); a stud (54) threaded to the inner wall of the collar (51); and a turntable (53) fixed to the end of the stud (54). The protrusion (52) is inserted into the main shaft under the drive of the collar (51), and the stud (54) is rotated into the main shaft under the drive of the turntable (53), thereby fixing the disc body (1) to the main shaft.