CN117259869A - Full-automatic numerical control high-speed gear hobbing machine - Google Patents
Full-automatic numerical control high-speed gear hobbing machine Download PDFInfo
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- CN117259869A CN117259869A CN202311558306.4A CN202311558306A CN117259869A CN 117259869 A CN117259869 A CN 117259869A CN 202311558306 A CN202311558306 A CN 202311558306A CN 117259869 A CN117259869 A CN 117259869A
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- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 210000000078 claw Anatomy 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 22
- 238000003754 machining Methods 0.000 abstract description 10
- 230000035929 gnawing Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The invention relates to the field of gear machining, in particular to a full-automatic numerical control high-speed gear hobbing machine; the gear hobbing machine comprises a gear hobbing machine body, and a positioning frame, a cutting frame and a limiting frame which are arranged in the gear hobbing machine body, wherein a tight-propping pin shaft and a tight-propping chuck which can pre-connect a gear blank are arranged; the double-displacement pushing mechanism is connected with the positioning frame and can push the rotary abutting mechanism to abut against the tooth blank; the driving cylinder can push the double-displacement pushing mechanism to start; the gear blank can be quickly disassembled and assembled by driving the air cylinder, and the assembled gear blank can be quickly positioned by the abutting pin shaft and the abutting chuck, so that the machining efficiency is improved; the double-position pushing mechanism is used for realizing the abutting of the tooth blank, and meanwhile, after the double-position pushing mechanism is started, the driving sleeve can be positioned and held tightly by the two connecting holding claws to the abutting chuck after being close to each other, so that the tooth blank is ensured not to move in the subsequent processing process, and the tooth biting probability is reduced.
Description
Technical Field
The invention relates to the field of gear machining, in particular to a full-automatic numerical control high-speed gear hobbing machine.
Background
The gear hobbing machine is one of the most widely used gear processing machines, and can cut straight-tooth and helical-tooth cylindrical gears, worm gears, chain wheels and the like. And the hob is a gear processing machine tool for processing straight-tooth, helical-tooth and herringbone-tooth cylindrical gears and worm gears according to a generating method. When the machine tool uses a special hob, various workpieces with special tooth shapes such as a spline, a chain wheel and the like can be processed.
When the hob is used for machining a tooth blank, a horizontal component force P of a cutting resultant force R always pushes a workpiece and the hob away from each other, so that a saddle slide plate and a stand column guide rail are kept in close fit, the hob is uniform and stable in machining, vibration is avoided, but when the hob is close to a terminal end, a cutting tooth starts to separate from cutting, the cutting force is reduced, the slide plate and the guide rail gradually separate from and fit, the saddle starts to incline to a lower head due to self weight, tooth gnawing starts, when the cutting is completely stopped, the hob is lowered to a limit, and a semicircle still partially engages with the workpiece at the moment, so that tooth gnawing reaches the maximum, and tooth gnawing is formed. In this regard, we need to optimize this problem, reducing the degree and probability of tooth gnawing.
Meanwhile, the gear hobbing machine needs to be fixed during machining, but the gear hobbing machine does not limit the upper part of the gear blank at the moment, and the common clamp can meet the machining requirement of gears in a low-speed machining state. For example, under the condition that the feeding amount is 0.5 mm/r-0.8 mm/r, the hobbing cutter can process a workpiece fixed by the fixture, however, when the feeding amount exceeds 1.0mm/r, the fixture needs to perform double positioning on the axis and the upper end face of the tooth blank, otherwise, the processing requirement of the hobbing cutter is difficult to meet. However, at this time, the difficulty of positioning is high, so that the structure of the selected fixture is complex, the installation speed of the tooth blank is further influenced, the machining efficiency is influenced, the effect of quick assembly and disassembly cannot be realized, and the technical problems of low machining efficiency and the like can finally occur.
Disclosure of Invention
Based on the above, it is necessary to provide a full-automatic numerical control high-speed gear hobbing machine aiming at the problems of the prior art.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
the utility model provides a full-automatic numerical control high-speed gear hobbing machine, includes the gear hobbing machine body, still includes:
the positioning frame is fixedly arranged in the gear hobbing machine body;
the cutting frame is movably arranged at one side of the positioning frame;
the limiting frame is movably arranged on the other side of the positioning frame;
the abutting pin shaft is coaxially arranged with the tooth blank;
the abutting chuck is coaxially arranged at one end of the tooth blank and is in screwed connection with the abutting pin shaft;
the cutting mechanism is connected with the cutting frame and comprises a cutter rest, a hob and a bearing carrier plate, wherein the cutter rest is arranged on a side plate of the cutting frame in a sliding manner, a driving mechanism is loaded in the cutter rest, the hob is rotationally arranged at one end of the cutter rest far away from the cutting frame and is fixedly connected with the output end of the driving mechanism, the bearing carrier plate is elastically arranged below the hob, and the bearing carrier plate can lift the cutter rest when the hob moves to the lowest point;
the positioning mechanism is connected with the limiting frame and comprises a U-shaped frame, a bearing disc, a power motor and a rotary abutting mechanism, wherein the U-shaped frame is fixedly connected with the upper end of the limiting frame, the bearing disc is rotatably arranged at the upper part of the lower end of the U-shaped frame, the bearing disc can be coaxially connected with the lower end of the abutting pin shaft, the power motor is fixedly arranged at the upper end of the U-shaped frame through the motor frame, the rotary abutting mechanism is arranged at the side of the power motor, and the power motor can finally drive the tooth blank to rotate;
the double-displacement pushing mechanism is connected with the positioning frame and can push the rotary abutting mechanism to abut against the tooth blank;
the driving cylinder is arranged above the double-displacement pushing mechanism and fixedly connected with the positioning frame, and can push the double-displacement pushing mechanism to start.
Further, the cutting mechanism further comprises a bearing support, two bearing pin shafts and two bearing springs, wherein the bearing support is arranged below the bearing support plate and fixedly connected with the cutting frame, the lower ends of the two bearing pin shafts are in sliding connection with the bearing support, the upper ends of the two bearing pin shafts are fixedly connected with the bearing support plate, the two bearing springs are respectively sleeved outside the two bearing pin shafts, the upper ends of the two bearing springs are respectively propped against the bearing support plate, and the lower ends of the two bearing springs are respectively propped against the bearing support plate.
Further, the positioning mechanism further comprises a driving gear, a driven gear and a driving sleeve, the driving gear is fixedly connected with the output end of the power motor, the driven gear is rotatably arranged at the upper end of the U-shaped frame and meshed with the driving gear, the driven gear and the driving sleeve are coaxially arranged, a plurality of clamping flanges are formed on the side wall of the driving sleeve at equal angles, a plurality of clamping holes are formed on the inner wall of the driven gear at equal angles, and the clamping flanges can be in sliding connection with the clamping holes.
Further, the double-displacement pushing mechanism comprises a fixed side plate, a pushing roller shaft, a pushing tension spring, a first pushing plate and a second pushing plate, wherein the fixed side plate is fixedly connected with the positioning frame, the first pushing plate is arranged at the side of the U-shaped frame and is in sliding connection with the fixed side plate, the lower end of the pushing roller shaft is fixedly connected with the upper end of the first pushing plate, the upper end of the pushing roller shaft is in sliding connection with the fixed side plate, the pushing tension spring is sleeved outside the pushing roller shaft, the upper end of the pushing tension spring is fixedly connected with the fixed side plate, the lower end of the pushing tension spring is fixedly connected with the first pushing plate, the output end of the driving cylinder can be abutted against the upper end of the pushing roller shaft, the second pushing plate is in sliding connection with the first pushing plate, and the second pushing plate is in rotating connection with the upper end of the driving sleeve.
Further, the double-displacement pushing mechanism further comprises a first clamping plate, a second clamping plate, a T-shaped deflection rod and two clamping rollers, wherein the first clamping plate is fixedly connected with the lower part of the fixed side plate, the second clamping plate is fixedly connected with the lower end of the first pushing plate, the upper end of the T-shaped deflection rod is hinged to one side, far away from the driving sleeve, of the second pushing plate through a torsion spring, the two clamping rollers are respectively connected with the lower end of the T-shaped deflection rod in a rotating mode, a clamping through hole is formed in one side, close to the first clamping plate and the second clamping plate, of the second clamping roller, and the two clamping through holes can respectively abut against the two clamping rollers in the moving process of the second pushing plate.
Further, the double-displacement pushing mechanism further comprises a trigger pressing rod and a pressing roller shaft, the trigger pressing rod is fixedly connected with the upper end of the first push plate, and the pressing roller shaft is fixedly connected with the trigger pressing rod.
Further, rotatory tight mechanism that supports includes the location curved bar, trigger the roller, trigger spring and links up the roller, the fixed upper end that sets up at the U type frame of location curved bar, the shaping has the location perforation on the location curved bar, push down the roller and fix a position perforation coaxial line setting, trigger the roller coaxial line setting and fix a position fenestrate below, trigger the upper end of roller and offset with the lower extreme of compression roller axle down, trigger spring coaxial line cover is established in the outside of triggering the roller, trigger spring's upper end links firmly with the location curved bar, the lower extreme links firmly with the second push pedal, trigger roller and initiative sleeve pipe coaxial line sliding connection, link up the roller and link up the lower extreme coaxial line of roller and link up the lower extreme of roller and offset with the upper end of supporting tight round pin axle.
Further, the rotary abutting mechanism further comprises a triggering sleeve, a connecting short pipe, two connecting holding claws and two connecting supports, the triggering sleeve is fixedly connected with the lower end of the driving sleeve in a coaxial line, the connecting roll shaft is connected with the triggering sleeve in a coaxial line sliding mode, limiting through holes are formed in the side wall of the connecting roll shaft, the connecting short pipe is fixedly connected with the limiting through holes, the two connecting supports are symmetrically arranged on the two sides of the connecting roll shaft, the two connecting supports are fixedly connected with the inner wall of the triggering sleeve, the middle portions of the two connecting holding claws are respectively connected with the two connecting supports in a rotating mode, one ends of the two connecting holding claws are respectively abutted to the inner wall of the connecting short pipe, and the other ends of the two connecting holding claws can be respectively connected with the inner wall of the upper end of the abutting chuck in a clamping mode.
Compared with the prior art, the invention has the following beneficial effects:
the method comprises the following steps: the device realizes the quick disassembly and assembly of the tooth blank by driving the air cylinder, and the tooth blank after being added can be quickly positioned by the abutting pin shaft and the abutting chuck, so that the processing efficiency is improved;
and two,: the device realizes the tight supporting of the tooth blank through the double-displacement pushing mechanism, and simultaneously, after the double-displacement pushing mechanism is started, the driving sleeve can carry out the positioning and the tight supporting on the tight supporting chuck through the two connecting holding claws after the driving sleeve approaches to the tight supporting chuck, so that the tooth blank is ensured not to move in the subsequent processing process, and the tooth biting probability is reduced;
and thirdly,: this device supports the knife rest through the bearing carrier plate for when the knife rest is located the minimum, the bearing carrier plate can support the knife rest from bottom to top, reduces the angle that the knife rest was inclined, weakens the terminal degree of gnawing the tooth.
Drawings
FIG. 1 is a schematic perspective view of a gear hobbing machine body according to an embodiment;
FIG. 2 is a side view of a perspective structure of an embodiment;
FIG. 3 is an enlarged view of the structure of FIG. 2 at A;
FIG. 4 is a schematic perspective view of an embodiment;
FIG. 5 is a schematic perspective view of another embodiment at an angle;
FIG. 6 is an enlarged view of the structure at B in FIG. 5;
FIG. 7 is a perspective cross-sectional view of a positioning mechanism in an embodiment;
fig. 8 is an enlarged view of the structure at C in fig. 7.
The reference numerals in the figures are:
1. a gear hobbing machine body; 2. a positioning frame; 3. a cutting rack; 4. a limiting frame; 5. abutting against the pin shaft; 6. tightly supporting the chuck; 7. a cutting mechanism; 8. a tool holder; 9. a hob; 10. a supporting support; 11. bearing pin shafts; 12. a support spring; 13. supporting the carrier plate; 14. a positioning mechanism; 15. a U-shaped frame; 16. a support disc; 17. a power motor; 18. a drive gear; 19. a driven gear; 20. clamping and perforating; 21. an active cannula; 22. a clamping flange; 23. a rotary tightening mechanism; 24. positioning a curved rod; 25. positioning perforation; 26. triggering a roll shaft; 27. a trigger spring; 28. triggering the sleeve; 29. a connecting roll shaft; 30. limiting perforation; 31. a connecting short pipe; 32. a holding claw is connected; 33. a connecting support; 34. a driving cylinder; 35. a double displacement pushing mechanism; 36. fixing the side plates; 37. pushing the roll shaft; 38. pushing the tension spring; 39. a first push plate; 40. a first clamping plate; 41. a second push plate; 42. a second clamping plate; 43. clamping the through hole; 44. a T-shaped deflection lever; 45. the clamping roller; 46. triggering a compression bar; 47. pressing down a roll shaft; 48. tooth blank.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
With reference to figures 1 to 8 of the drawings,
the full-automatic numerical control high-speed gear hobbing machine comprises a gear hobbing machine body 1 and further comprises:
the positioning frame 2 is fixedly arranged in the gear hobbing machine body 1;
the cutting frame 3 is movably arranged at one side of the positioning frame 2;
the limiting frame 4 is movably arranged on the other side of the positioning frame 2;
the abutting pin shaft 5 is coaxially arranged with the tooth blank 48;
the abutting chuck 6 is coaxially arranged at one end of the tooth blank 48 and is screwed with the abutting pin shaft 5;
the cutting mechanism 7 is connected with the cutting frame 3 and comprises a cutter rest 8, a hob 9 and a bearing carrier plate 13, wherein the cutter rest 8 is arranged on a side plate of the cutting frame 3 in a sliding manner, a driving mechanism is loaded in the cutter rest 8, the hob 9 is rotatably arranged at one end of the cutter rest 8 far away from the cutting frame 3 and fixedly connected with the output end of the driving mechanism, the bearing carrier plate 13 is elastically arranged below the hob 9, and the bearing carrier plate 13 can lift the cutter rest 8 when the hob 9 moves to the lowest point;
the positioning mechanism 14 is connected with the limiting frame 4 and comprises a U-shaped frame 15, a bearing disc 16, a power motor 17 and a rotary abutting mechanism 23, wherein the U-shaped frame 15 is fixedly connected with the upper end of the limiting frame 4, the bearing disc 16 is rotatably arranged on the upper part of the lower end of the U-shaped frame 15, the bearing disc 16 can be coaxially connected with the lower end of the abutting pin shaft 5, the power motor 17 is fixedly arranged on the upper end of the U-shaped frame 15 through a motor frame, the rotary abutting mechanism 23 is arranged beside the power motor 17, and the power motor 17 can be started to finally drive the tooth blank 48 to rotate;
the double-displacement pushing mechanism 35 is connected with the positioning frame 2 and can push the rotary abutting mechanism 23 to abut against the tooth blank 48;
the driving air cylinder 34 is arranged above the double-displacement pushing mechanism 35 and fixedly connected with the positioning frame 2, and the driving air cylinder 34 can push the double-displacement pushing mechanism 35 to start.
When the device operates, an operator shall pre-connect the abutting pin shaft 5 and the abutting chuck 6 simultaneously with the tooth blank 48, then the operator shall coaxially arrange the abutting pin shaft 5 and the supporting disc 16, at the moment, the abutting pin shaft 5 can be coaxially connected with the supporting disc 16, then the operator starts the driving cylinder 34, the driving cylinder 34 can be finally driven to start the double-displacement pushing mechanism 35 after being started, the double-displacement pushing mechanism 35 can be finally started to compress the abutting chuck 6 at the other end of the tooth blank 48 through the rotary abutting mechanism 23, and then the power motor 17 can be started to drive the tooth blank 48 to rotate.
In the process of rotating the tooth blank 48, the cutter rest 8 drives the rotary hob 9 to be close to the tooth blank 48, the hob 9 can cut the tooth blank 48 along with the reciprocating movement of the cutter rest 8, in the process, each time the cutter rest 8 moves to the lowest point, the cutter rest 8 starts to incline to be low due to self weight, at the moment, the cutter rest 8 can be contacted with the bearing carrier plate 13, the bearing carrier plate 13 can apply reaction force to the cutter rest 8, the inclination angle of the cutter rest 8 is reduced, and the tooth biting degree of the tail end is weakened.
After the tooth blank 48 is processed, only the cylinder 34 is driven to recover the output end, so that one-key reset of the tooth blank 48 can be realized, and the replacement time of the tooth blank 48 is greatly reduced.
In order to prevent the tilting of the tool holder 8 under the influence of gravity, the following features are provided in particular:
the cutting mechanism 7 further comprises a bearing support 10, two bearing pin shafts 11 and two bearing springs 12, wherein the bearing support 10 is arranged below the bearing support plate 13 and fixedly connected with the cutting frame 3, the lower ends of the two bearing pin shafts 11 are in sliding connection with the bearing support 10, the upper ends of the two bearing pin shafts 11 are fixedly connected with the bearing support plate 13, the two bearing springs 12 are respectively sleeved outside the two bearing pin shafts 11, the upper ends of the two bearing springs 12 respectively abut against the bearing support plate 13, and the lower ends of the two bearing springs respectively abut against the bearing support 10. When the tool rest 8 moves to the lowest point, in order to prevent the tool rest 8 from tilting under the action of gravity, in the process, the two bearing springs 12 can push the bearing carrier plate 13 to move upwards under the action of self-elasticity, and the movement of the bearing carrier plate 13 can be limited by the two bearing pin shafts 11.
In order to facilitate the mounting and dismounting of the tooth blank 48, the following features are provided:
the positioning mechanism 14 further comprises a driving gear 18, a driven gear 19 and a driving sleeve 21, wherein the driving gear 18 is fixedly connected with the output end of the power motor 17, the driven gear 19 is rotatably arranged at the upper end of the U-shaped frame 15 and meshed with the driving gear 18, the driven gear 19 is coaxially arranged with the driving sleeve 21, a plurality of clamping flanges 22 are formed on the side wall of the driving sleeve 21 at equal angles, a plurality of clamping through holes 20 are formed on the inner wall of the driven gear 19 at equal angles, and the clamping flanges 22 can be slidably connected with the clamping through holes 20. After the power motor 17 is started, the power motor 17 can drive the driven gear 19 to rotate through the driving gear 18, and the driven gear 19 can drive the driving sleeve 21 to rotate through the matching of the clamping flange 22 and the clamping through hole 20. The clamping flange 22 and the clamping through hole 20 are in sliding connection, so that the driving sleeve 21 and the driven gear 19 can slide relatively, and the tooth blank 48 can be conveniently installed and detached.
In order to achieve the relative sliding of the driving sleeve 21 and the driven gear 19, the following features are provided:
the double-displacement pushing mechanism 35 comprises a fixed side plate 36, a pushing roller shaft 37, a pushing tension spring 38, a first pushing plate 39 and a second pushing plate 41, wherein the fixed side plate 36 is fixedly connected with the positioning frame 2, the first pushing plate 39 is arranged at the side of the U-shaped frame 15 and is in sliding connection with the fixed side plate 36, the lower end of the pushing roller shaft 37 is fixedly connected with the upper end of the first pushing plate 39, the upper end of the pushing roller shaft 37 is in sliding connection with the fixed side plate 36, the pushing tension spring 38 is sleeved outside the pushing roller shaft 37, the upper end of the pushing tension spring 38 is fixedly connected with the fixed side plate 36, the lower end of the pushing tension spring 38 is fixedly connected with the first pushing plate 39, the output end of the driving cylinder 34 can abut against the upper end of the pushing roller shaft 37, the second pushing plate 41 is in sliding connection with the first pushing plate 39, and the second pushing plate 41 is in rotating connection with the upper end of the driving sleeve 21. After the driving cylinder 34 is started, the driving cylinder 34 can enable the pushing roll shaft 37 to move downwards, the pushing roll shaft 37 moves to drive the first push plate 39 connected with the pushing roll shaft to move downwards, the second push plate 41 can move downwards synchronously along with the first push plate 39 under the action of the rotary abutting mechanism 23, and therefore the driving sleeve 21 is driven to move, and therefore relative sliding of the driving sleeve 21 and the driven gear 19 is achieved.
In order to prevent the tooth blank 48 from moving during the rotation process, so as to improve the rotation stability of the tooth blank 48, the following features are specifically provided:
the double-displacement pushing mechanism 35 further comprises a first clamping plate 40, a second clamping plate 42, a T-shaped deflection rod 44 and two clamping rollers 45, the first clamping plate 40 is fixedly connected with the lower portion of the fixed side plate 36, the second clamping plate 42 is fixedly connected with the lower portion of the first push plate 39, the upper end of the T-shaped deflection rod 44 is hinged to one side, far away from the driving sleeve 21, of the second push plate 41 through a torsion spring, the two clamping rollers 45 are respectively connected with the lower end of the T-shaped deflection rod 44 in a rotating mode, clamping through holes 43 are formed in the side, close to the first clamping plate 40 and the second clamping plate 42, of the two clamping rollers 45 in the moving process of the second push plate 41, and the two clamping through holes 43 can be respectively abutted against the two clamping rollers 45. In the downward moving process of the first push plate 39, the clamping roller 45 close to the second clamping plate 42 is clamped with the clamping through hole 43 on the second clamping plate 42, synchronous displacement is achieved between the first push plate 39 and the second push plate 41, when the second push plate 41 moves to the side of the first clamping plate 40, the clamping roller 45 close to the first clamping plate 40 is clamped into the clamping through hole 43 on the first clamping plate 40, and then the clamping roller 45 close to the second clamping plate 42 is separated from the second clamping plate 42 along with the continuous movement of the first push plate 39, the second push plate 41 stops moving at the moment, and the first push plate 39 continues to move until the driving cylinder 34 stops moving.
In this process, the first push plate 39 will first drive the second push plate 41 to move, when the second push plate 41 moves, the first push plate 39 will continue to move for a certain period, and when the second push plate 41 moves, the driving sleeve 21 fixedly connected with the second push plate 41 will first move, so as to be convenient for being close to the tooth blank 48 to initially position the tooth blank 48, and prevent the tooth blank 48 from moving during rotation, thereby improving the stability of rotation of the tooth blank 48.
In order to tightly hold the abutting chuck 6 at the upper end of the tooth blank 48, the following features are specifically provided:
the double-displacement pushing mechanism 35 further comprises a trigger pressing rod 46 and a lower pressing roll shaft 47, wherein the trigger pressing rod 46 is fixedly connected with the upper end of the first push plate 39, and the lower pressing roll shaft 47 is fixedly connected with the trigger pressing rod 46. When the first push plate 39 moves, the first push plate 39 drives the trigger pressing rod 46 to displace, the trigger pressing rod 46 moves to drive the lower pressing roller shaft 47 to displace, and the lower pressing roller shaft 47 can finally drive the rotary abutting mechanism 23 to tightly hold the abutting chuck 6 at the upper end of the tooth blank 48.
In order to perform the preliminary positioning of the tooth blank 48, the following features are provided:
the rotary abutting mechanism 23 comprises a positioning curved rod 24, a trigger roll shaft 26, a trigger spring 27 and a connecting roll shaft 29, the positioning curved rod 24 is fixedly arranged at the upper end of the U-shaped frame 15, a positioning perforation 25 is formed on the positioning curved rod 24, a lower press roll shaft 47 and the positioning perforation 25 are coaxially arranged, the trigger roll shaft 26 is coaxially arranged below the positioning perforation 25, the upper end of the trigger roll shaft 26 can abut against the lower end of the lower press roll shaft 47, the trigger spring 27 is coaxially sleeved outside the trigger roll shaft 26, the upper end of the trigger spring 27 is fixedly connected with the positioning curved rod 24, the lower end of the trigger spring 27 is fixedly connected with the second push plate 41, the trigger roll shaft 26 is coaxially and slidably connected with the driving sleeve 21, the connecting roll shaft 29 is coaxially fixedly connected with the lower end of the trigger roll shaft 26, and the lower end of the connecting roll shaft 29 can abut against the upper end of the abutting pin shaft 5. After the lower roll shaft 47 moves, the lower roll shaft 47 is abutted against the upper end of the trigger roll shaft 26 after passing through the positioning perforation 25 of the positioning curved rod 24, then the lower roll shaft 47 continues to move to push the trigger roll shaft 26 to move, and the trigger roll shaft 26 moves to drive the connecting roll shaft 29 connected with the trigger roll shaft to move until the connecting roll shaft 29 presses the upper end of the abutting pin shaft 5, so as to initially position the tooth blank 48, and the coaxial arrangement of the tooth blank 48 and the connecting roll shaft 29 is ensured. After the trigger roll shaft 26 moves, the trigger spring 27 can ensure that the trigger roll shaft 26 can move upwards to reset, so that the condition that the trigger roll shaft 26 cannot return to the original position is avoided. Meanwhile, due to the trigger spring 27, the second push plate 41 and the first push plate 39 have a trend of being far away from each other, at this time, under the action of the trigger spring 27, the clamping roller 45 connected with the second push plate 41 through the T-shaped deflection rod 44 moves, the clamping roller 45 can be clamped into the clamping through hole 43 on the second clamping plate 42, and therefore when the first push plate 39 moves upwards, the first push plate 39 can drive the second push plate 41 to move through the second clamping plate 42.
In order to fix the tooth blank 48, the following features are provided:
the rotary abutting mechanism 23 further comprises a trigger sleeve 28, a connecting short pipe 31, two connecting holding claws 32 and two connecting supports 33, the trigger sleeve 28 is fixedly connected with the lower end of the driving sleeve 21 in a coaxial line, the connecting roll shaft 29 is connected with the trigger sleeve 28 in a coaxial sliding mode, limiting through holes 30 are formed in the side wall of the connecting roll shaft 29, the connecting short pipe 31 is fixedly connected with the limiting through holes 30, the two connecting supports 33 are symmetrically arranged on two sides of the connecting roll shaft 29, the two connecting supports 33 are fixedly connected with the inner wall of the trigger sleeve 28, the middle parts of the two connecting holding claws 32 are respectively connected with the two connecting supports 33 in a rotating mode, one ends of the two connecting holding claws 32 are respectively abutted to the inner wall of the connecting short pipe 31, and the other ends of the two connecting holding claws can be respectively connected with the inner wall of the upper end of the abutting chuck 6 in a clamping mode. When the engagement roller shaft 29 moves, the engagement roller shaft 29 can drive the two engagement holding claws 32 to deflect along the two engagement supports 33 through the engagement short pipe 31, then one end, away from the engagement short pipe 31, of the two engagement holding claws 32 can be held tightly on the inner wall of the upper end of the abutting chuck 6, at the moment, the tooth blank 48 is completely fixed, and when the driving sleeve 21 rotates, the tooth blank 48 rotates together, so that the hob 9 can cut the tooth blank conveniently.
Referring to fig. 8, as can be seen from the semi-sectional view of the engagement roller 29, the engagement short tube 31 is fixedly disposed in the limit through hole 30 at the lower portion of the engagement roller 29, and the upper portion of the engagement roller 29 is coaxially disposed with the trigger sleeve 28. The limiting perforation 30 is used for fixedly connecting the lower part of the connecting roll shaft 29 with the connecting short pipe 31, so that the two connecting holding claws 32 are driven to deflect when the connecting roll shaft 29 moves.
The working principle of the device is that when the device is operated, an operator should pre-connect the abutting pin shaft 5 and the abutting chuck 6 simultaneously with the tooth blank 48, then the operator sets the abutting pin shaft 5 and the supporting disc 16 coaxially, at this time, the abutting pin shaft 5 is coaxially connected with the supporting disc 16, and then the operator starts the driving cylinder 34.
When the driving cylinder 34 is started, the first push plate 39 is pushed to move, during the downward movement process of the first push plate 39, the clamping roller 45 close to the second clamping plate 42 is clamped with the clamping through hole 43 on the second clamping plate 42, at this time, synchronous displacement is realized between the first push plate 39 and the second push plate 41, when the second push plate 41 moves to the side of the first clamping plate 40, the clamping roller 45 close to the first clamping plate 40 is clamped into the clamping through hole 43 on the first clamping plate 40, at this time, along with the continuous movement of the first push plate 39, the clamping roller 45 close to the second clamping plate 42 is separated from the second clamping plate 42, at this time, the second push plate 41 stops moving, and the first push plate 39 continues to displace until the driving cylinder 34 stops moving.
In this process, the first push plate 39 will first drive the second push plate 41 to move, when the second push plate 41 moves, the first push plate 39 will continue to move for a certain period, and when the second push plate 41 moves, the driving sleeve 21 fixedly connected with the second push plate 41 will first move, so as to be convenient to approach the tooth blank 48 and perform preliminary positioning on the tooth blank 48, so as to ensure that the tooth blank 48 will not separate from the processing station, prevent the tooth blank 48 from moving during rotation, and improve the rotation stability of the tooth blank 48.
Similarly, when the first push plate 39 moves upward, the second clamping plate 42 will first abut against the clamping roller 45 close to the second clamping plate 42, and at this time, along with the continued movement of the first push plate 39, the second push plate 41 will move upward under the driving of the second clamping plate 42, so as to complete the release of the active sleeve 21.
After the second push plate 41 moves, the second push plate 41 drives the driving sleeve 21 to abut against the upper end of the abutting chuck 6, then, after the first push plate 39 drives the pressing roller shaft 47 to move continuously, the pressing roller shaft 47 pushes the triggering roller shaft 26 to move, and the triggering roller shaft 26 drives the connecting roller shaft 29 connected with the triggering roller shaft 26 to move until the connecting roller shaft 29 presses against the upper end of the abutting pin shaft 5, and the tooth blank 48 is initially positioned so as to ensure that the tooth blank 48 and the connecting roller shaft 29 are coaxially arranged. Meanwhile, the engagement roller shaft 29 can drive the two engagement holding claws 32 to deflect along the two engagement supports 33 through the engagement short pipe 31, then one end, away from the engagement short pipe 31, of the two engagement holding claws 32 can be held tightly on the inner wall of the upper end of the abutting chuck 6, at the moment, the tooth blank 48 is completely fixed, and when the driving sleeve 21 rotates, the tooth blank 48 rotates together, so that the hob 9 can cut the tooth blank conveniently.
In the process of rotating the tooth blank 48, the cutter rest 8 drives the rotary hob 9 to be close to the tooth blank 48, the hob 9 can cut the tooth blank 48 along with the reciprocating movement of the cutter rest 8, in the process, each time the cutter rest 8 moves to the lowest point, the cutter rest 8 starts to incline to be low due to self weight, at the moment, the cutter rest 8 can be contacted with the bearing carrier plate 13, the bearing carrier plate 13 can apply a propping force to the cutter rest 8 under the action of the two bearing springs 12, the inclined angle of the cutter rest 8 is reduced, and the degree of tooth gnawing at the tail end is weakened.
After the tooth blank 48 is processed, only the cylinder 34 is driven to recover the output end, so that one-key reset of the tooth blank 48 can be realized, and the replacement time of the tooth blank 48 is greatly reduced.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The utility model provides a full-automatic numerical control high-speed gear hobbing machine, includes gear hobbing machine body (1), its characterized in that still includes:
the locating rack (2) is fixedly arranged in the gear hobbing machine body (1);
the cutting frame (3) is movably arranged at one side of the positioning frame (2);
the limiting frame (4) is movably arranged on the other side of the positioning frame (2);
the abutting pin shaft (5) is coaxially arranged with the tooth blank (48);
the abutting chuck (6) is coaxially arranged at one end of the tooth blank (48) and is screwed with the abutting pin shaft (5);
the cutting mechanism (7) is connected with the cutting frame (3) and comprises a cutter rest (8), a hob (9) and a bearing carrier plate (13), the cutter rest (8) is arranged on a side plate of the cutting frame (3) in a sliding mode, a driving mechanism is loaded in the cutter rest (8), the hob (9) is rotatably arranged at one end, far away from the cutting frame (3), of the cutter rest (8) and is fixedly connected with the output end of the driving mechanism, the bearing carrier plate (13) is elastically arranged below the hob (9), and the bearing carrier plate (13) can lift the cutter rest (8) when the hob (9) moves to the lowest point;
the positioning mechanism (14) is connected with the limiting frame (4) and comprises a U-shaped frame (15), a bearing disc (16), a power motor (17) and a rotary abutting mechanism (23), wherein the U-shaped frame (15) is fixedly connected with the upper end of the limiting frame (4), the bearing disc (16) is rotatably arranged on the upper part of the lower end of the U-shaped frame (15), the bearing disc (16) can be coaxially connected with the lower end of the abutting pin shaft (5), the power motor (17) is fixedly arranged at the upper end of the U-shaped frame (15) through the motor frame, the rotary abutting mechanism (23) is arranged beside the power motor (17), and the power motor (17) can be started to finally drive the tooth blank (48) to rotate;
the double-displacement pushing mechanism (35) is connected with the positioning frame (2) and can push the rotary abutting mechanism (23) to abut against the tooth blank (48);
the driving air cylinder (34) is arranged above the double-displacement pushing mechanism (35) and is fixedly connected with the positioning frame (2), and the driving air cylinder (34) can push the double-displacement pushing mechanism (35) to start.
2. The full-automatic numerical control high-speed gear hobbing machine according to claim 1, wherein the cutting mechanism (7) further comprises a bearing support (10), two bearing pin shafts (11) and two bearing springs (12), the bearing support (10) is arranged below the bearing support plate (13) and fixedly connected with the cutting frame (3), the lower ends of the two bearing pin shafts (11) are slidably connected with the bearing support (10), the upper ends of the two bearing pin shafts are fixedly connected with the bearing support plate (13), the two bearing springs (12) are respectively sleeved outside the two bearing pin shafts (11), the upper ends of the two bearing springs (12) are respectively propped against the bearing support plate (13), and the lower ends of the two bearing springs are respectively propped against the bearing support (10).
3. The full-automatic numerical control high-speed gear hobbing machine according to claim 1, wherein the positioning mechanism (14) further comprises a driving gear (18), a driven gear (19) and a driving sleeve (21), the driving gear (18) is fixedly connected with the output end of the power motor (17), the driven gear (19) is rotatably arranged at the upper end of the U-shaped frame (15) and meshed with the driving gear (18), the driven gear (19) and the driving sleeve (21) are coaxially arranged, a plurality of clamping flanges (22) are formed on the side wall of the driving sleeve (21) at equal angles, a plurality of clamping through holes (20) are formed on the inner wall of the driven gear (19) at equal angles, and the clamping flanges (22) can be slidably connected with the clamping through holes (20).
4. A full-automatic numerical control high-speed gear hobbing machine as claimed in claim 3, characterized in that the double-displacement pushing mechanism (35) comprises a fixed side plate (36), a pushing roller shaft (37), a pushing tension spring (38), a first pushing plate (39) and a second pushing plate (41), wherein the fixed side plate (36) is fixedly connected with the positioning frame (2), the first pushing plate (39) is arranged at the side of the U-shaped frame (15) and is in sliding connection with the fixed side plate (36), the lower end of the pushing roller shaft (37) is fixedly connected with the upper end of the first pushing plate (39), the upper end of the pushing roller shaft (37) is in sliding connection with the fixed side plate (36), the pushing tension spring (38) is sleeved outside the pushing roller shaft (37), the upper end of the pushing tension spring (38) is fixedly connected with the fixed side plate (36), the lower end of the pushing tension spring (34) is fixedly connected with the first pushing plate (39), the output end of the driving cylinder (34) can prop against the upper end of the pushing roller shaft (37), the second pushing plate (41) is in sliding connection with the first pushing plate (39), and the second pushing plate (41) is in sliding connection with the upper end of the driving sleeve (21).
5. The full-automatic numerical control high-speed gear hobbing machine as claimed in claim 4, wherein the double-displacement pushing mechanism (35) further comprises a first clamping plate (40), a second clamping plate (42), a T-shaped deflection rod (44) and two clamping rollers (45), the first clamping plate (40) is fixedly connected with the lower part of the fixed side plate (36), the second clamping plate (42) is fixedly connected with the lower part of the first pushing plate (39), the upper end of the T-shaped deflection rod (44) is hinged with one side, far away from the driving sleeve (21), of the second pushing plate (41) through a torsion spring, the two clamping rollers (45) are respectively connected with the lower end of the T-shaped deflection rod (44) in a rotating mode, one side, close to the first clamping plate (40) and the second clamping plate (42), of the two clamping rollers (43) are formed with clamping through holes (43), and the two clamping rollers (45) can be respectively abutted against each other in the moving process of the second pushing plate (41).
6. The full-automatic numerical control high-speed gear hobbing machine according to claim 5, characterized in that the double-displacement pushing mechanism (35) further comprises a trigger pressing rod (46) and a pressing-down roll shaft (47), the trigger pressing rod (46) is fixedly connected with the upper end of the first push plate (39), and the pressing-down roll shaft (47) is fixedly connected with the trigger pressing rod (46).
7. The full-automatic numerical control high-speed gear hobbing machine according to claim 6, wherein the rotary abutting mechanism (23) comprises a positioning curved rod (24), a triggering roller shaft (26), a triggering spring (27) and a connecting roller shaft (29), the positioning curved rod (24) is fixedly arranged at the upper end of the U-shaped frame (15), a positioning through hole (25) is formed in the positioning curved rod (24), a lower pressing roller shaft (47) and the positioning through hole (25) are coaxially arranged, the triggering roller shaft (26) is coaxially arranged below the positioning through hole (25), the upper end of the triggering roller shaft (26) can abut against the lower end of the lower pressing roller shaft (47), the triggering spring (27) is coaxially sleeved outside the triggering roller shaft (26), the upper end of the triggering spring (27) is fixedly connected with the positioning curved rod (24), the lower end of the triggering roller shaft (26) is fixedly connected with the second push plate (41), the triggering roller shaft (26) is coaxially and slidably connected with the driving sleeve (21), and the connecting roller shaft (29) is fixedly connected with the lower end of the triggering roller shaft (26), and the lower end of the connecting roller shaft (29) can abut against the upper end of the pin shaft (5).
8. The full-automatic numerical control high-speed gear hobbing machine according to claim 7, wherein the rotary abutting mechanism (23) further comprises a trigger sleeve (28), a connecting short tube (31), two connecting holding claws (32) and two connecting supports (33), the trigger sleeve (28) is fixedly connected with the lower end of the driving sleeve (21) in a coaxial line, the connecting roll shaft (29) is fixedly connected with the trigger sleeve (28) in a coaxial line sliding manner, a limiting through hole (30) is formed in the side wall of the connecting roll shaft (29), the connecting short tube (31) is fixedly connected with the limiting through hole (30), the two connecting supports (33) are symmetrically arranged on two sides of the connecting roll shaft (29), the two connecting supports (33) are fixedly connected with the inner wall of the trigger sleeve (28), the middle parts of the two connecting holding claws (32) are respectively connected with the two connecting supports (33) in a rotating manner, one ends of the two connecting holding claws (32) are respectively abutted with the inner wall of the connecting short tube (31), and the other ends of the two connecting claws can be respectively clamped with the inner wall of the upper end of the abutting chuck (6).
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| CN202311558306.4A CN117259869B (en) | 2023-11-22 | 2023-11-22 | Full-automatic numerical control high-speed gear hobbing machine |
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| CN202311558306.4A CN117259869B (en) | 2023-11-22 | 2023-11-22 | Full-automatic numerical control high-speed gear hobbing machine |
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| CN117259869B CN117259869B (en) | 2024-03-08 |
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Cited By (1)
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| CN117564754A (en) * | 2024-01-16 | 2024-02-20 | 福州长鑫电动工具有限公司 | Automatic processing device for production of rear servo rod of gearbox |
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| CN117564754B (en) * | 2024-01-16 | 2024-03-29 | 福州长鑫电动工具有限公司 | Automatic processing device for production of rear servo rod of gearbox |
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| CN117259869B (en) | 2024-03-08 |
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