CN102366902A - Cutter driving device in gear processing machine - Google Patents
Cutter driving device in gear processing machine Download PDFInfo
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- CN102366902A CN102366902A CN2011103086890A CN201110308689A CN102366902A CN 102366902 A CN102366902 A CN 102366902A CN 2011103086890 A CN2011103086890 A CN 2011103086890A CN 201110308689 A CN201110308689 A CN 201110308689A CN 102366902 A CN102366902 A CN 102366902A
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- main shaft
- angular contact
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- bearing
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Abstract
The invention belongs to the technical field of machinery and provides a cutter driving device in a gear processing machine. The cutter driving device comprises a cutter holder, a main shaft and a driving mechanism, wherein the main shaft is arranged in the cutter holder, the driving mechanism drives the main shaft to do rotational motion, multiple groups of angular contact bearings are arranged between the front end part in the cutter holder and the main shaft, the angular contact bearings and the main shaft are in angular contact, the edges of the angular contact bearings are provided with adjusting parts used for adjusting gaps among the angular contact bearings along the axial direction of the main shaft, and a cylindrical roller bearing is arranged between the rear end part in the cutter holder and the main shaft. The cutter driving device provided by the invention has the advantages that two types of bearings are combined and arranged so that the main shaft jumps in a small range, a rolling fit manner is adopted to ensure the reliable and high-speed operation of the main shaft, and a problem caused by temperature can be well controlled by adjusting elasticity of the gaps among the angular contact bearings by locking nuts, thus the main shaft is ensured to operate stably, safely and reliably, and processing accuracy and efficiency of a gear are improved.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of gear-shaping machine, the cutter that is specifically related in a kind of gear-shaping machine drives device.
Background technology
In engineering goods, the product of gear class has accounted for major part, generally all is to drive device through cutter in the gear-shaping machine to fix cutter; Then the workpiece through rotary cutter and rotation be meshing with each other make cutter on the axle of workpiece reciprocating with Workpiece shaping needed gear shape; Existing cutter drives device owing to design problem on the structure, the main this mode that is slidingly matched that adopts between main shaft and the bearing, and the rotating speed when main shaft drives the cutter rotation can only reach 70 meters/minute effects like this; Limited the scope of application of processing machine like this; And adopting is slidingly matched makes the gap increase, and it is big that coefficient of friction becomes, and the main shaft internal structure cooperates not tight; Can produce bigger gap beats; The machine work less stable so just needs to reduce the rotary speed of main shaft, thereby is difficult to guarantee the machining accuracy and the efficient of gear.
Summary of the invention
Technical problem to be solved by this invention is the present situation to prior art, and a kind of Gear Processing precision that can improve is provided, and working stability is safe and reliable, and the cutter in the gear-shaping machine of high efficiency drives device.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the cutter in a kind of gear-shaping machine drives device; It is characterized in that; Comprise tool rest, main shaft and lead agency, described main shaft is arranged in the tool rest, and lead agency drives main shaft and rotates; Be provided with between leading section in tool rest and the main shaft and be many groups angular contact bearing of arranging shape; Contacting between angular contact bearing and the main shaft is angular contact, and the axial direction of angular contact bearing edge main shaft is provided with the adjustment part that is used to regulate gap between the angular contact bearing, is provided with cylinder roller bearing between rearward end in tool rest and the main shaft.
The measure of taking for the optimization such scheme specifically comprises:
Cutter in above-mentioned a kind of gear-shaping machine drives in the device, and the quantity of described angular contact bearing is 3 groups, and described adjustment part is a locking nut, pins along the angular contact bearing on the main shaft axial direction through locking nut.
Here through being set, cylinder roller bearing bears radial load; Through being set, angular contact bearing bears axial load; And with cooperates for rolling between the main shaft, adopts two kinds of bearing aggregate erections that main shaft is beated in very little scope, the reliable high speed of assurance main shaft is rotated; Main shaft can produce very big caloric value when rotating at a high speed simultaneously, can cause bearing temperature too high, produces distortion; And the bearing after the distortion has directly changed the pretension situation of bearing, has influenced the stiffness characteristics of bearing and the assembly quality of main shaft and other parts, can make damage of bearings when serious; Power transmission accuracy and utilization rate meeting variation; Do not have corresponding structure to adjust in existing in good time, regulate the elasticity in gap between the angular contact bearing here through locking nut, just can well control the caused problem of temperature; Thereby guarantee the even running of main shaft, improved the machining accuracy and the efficient of gear.
Cutter in above-mentioned a kind of gear-shaping machine drives in the device; Be provided with the left bearing end cap between the front end outside of described tool rest and the main shaft; Between the outside, rear end of tool rest and main shaft, be provided with the right bearing end cap; On main shaft, have step surface, described left bearing end cap end face is lower than step surface and is buckled on the step surface.Here be in order to prevent that extraneous impurity dust from entering in the internal structure through step surface installation left bearing end cap is set.
Cutter in above-mentioned a kind of gear-shaping machine drives in the device; Described lead agency comprises fixed head, motor, upper belt-wheel and following belt wheel; Described fixed head is arranged between motor and the main shaft, and upper belt-wheel and motor shaft are connected to a fixed, and following belt wheel is fixing to being connected with main shaft; Described motor rotates and drives the upper belt-wheel rotation, and upper belt-wheel drives belt wheel rotation down and then drives main shaft and in tool rest, rotates.
Cutter in above-mentioned a kind of gear-shaping machine drives in the device, is provided with radial ball bearing between described fixed head and the main shaft, between fixed head and motor shaft, also is provided with radial ball bearing.
Here after connecting upper belt-wheel and following belt wheel through belt; In order to guarantee rotation at a high speed; Need to guarantee certain expanding force in the radial direction,, thereby guarantee the high speed rotation of main shaft here through relying on two radial ball bearings that in the radial direction power is supported carrying.
Cutter in above-mentioned a kind of gear-shaping machine drives in the device, is provided with regulating sleeve between described radial ball bearing, fixed head and the main shaft.Here can regulate the gap of radial ball bearing and main shaft through regulating sleeve, guarantee the high speed rotation of main shaft and prevent that main shaft from beating in the rotation at a high speed on a large scale.
Cutter in above-mentioned a kind of gear-shaping machine drives in the device, back-up ring between described main shaft, cylinder roller bearing, radial ball bearing and the left bearing end cap.Here the effect of back-up ring is that each parts are separated, and prevents to influence each other at work.
Cutter in above-mentioned a kind of gear-shaping machine drives in the device, and described main axis jerking is controlled between 0.002～0.003mm, and the rotating speed of described main shaft reaches per minute 1000～3500 to be changeed.
Compared with prior art; The invention has the advantages that through cylinder roller bearing is set and bear radial load, bear axial load through angular contact bearing is set, and with main shaft between cooperate for rolling; Adopt two kinds of bearing aggregate erections that main shaft is beated in very little scope; Guarantee the reliable high speed rotation of main shaft, the elasticity of regulating gap between the angular contact bearing simultaneously through locking nut just can well be controlled the caused problem of temperature; Thereby the working stability that guarantees main shaft is safe and reliable, has improved the machining accuracy and the efficient of gear.
Description of drawings
Fig. 1 is the overall structure sketch map that the cutter in this gear-shaping machine drives device.
The specific embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
Among the figure, tool rest 1; Main shaft 2; Step surface 2a; Lead agency 3; Angular contact bearing 4; Adjustment part 5; Locking nut 5a; Cylinder roller bearing 6; Left bearing end cap 7; Right bearing end cap 8; Fixed head 9; Motor 10; Motor shaft 10a; Upper belt-wheel 11; Following belt wheel 12; Radial ball bearing 13; Regulating sleeve 14; Back-up ring 15.
As shown in Figure 1; Cutter in this gear-shaping machine drives device; Comprise tool rest 1, main shaft 2 and lead agency 3, main shaft 2 is arranged in the tool rest 1, is provided with left bearing end cap 7 between the front end of tool rest 1 outside and the main shaft 2; Be provided with right bearing end cap 8 in the rear end of tool rest 1 between the outside and main shaft 2; On main shaft 2, have step surface 2a, left bearing end cap 7 end faces are lower than step surface 2a and are buckled on the step surface 2a, are in order to prevent that extraneous impurity dust from entering in the internal structure through step surface 2a installation left bearing end cap 7 is set here.
Lead agency 3 drives main shaft 2 and rotates, and comprises fixed head 9, motor 10, upper belt-wheel 11 and following belt wheel 12, and fixed head 9 is arranged between motor 10 and the main shaft 2; Upper belt-wheel 11 is connected to a fixed with motor shaft 10a, and following belt wheel 12 is fixing to being connected with main shaft 2, and motor 10 rotates and drives upper belt-wheel 11 rotations; Upper belt-wheel 11 drives belt wheel 12 rotations down and then drives main shaft 2 and in tool rest 1, rotates; Here after connecting upper belt-wheel 11 and following belt wheel 12,, need to guarantee certain expanding force in the radial direction in order to guarantee rotation at a high speed through belt; Between motor shaft 10a and fixed head 9, radial ball bearing 13 is installed; Between fixed head 9 and motor shaft 10a, also be provided with radial ball bearing 13,, thereby guarantee the high speed rotation of main shaft 2 here through relying on 13 pairs of power in the radial direction of two radial ball bearings to support carrying.
The maximum improvement place of the present invention is to organize angular contact bearings 4 be provided with between leading section and the main shaft 2 tool rest 1 in more; Contacting between angular contact bearing 4 and the main shaft 2 is angular contact; The quantity of angular contact bearing 4 is 3 groups in the present embodiment, and the axial direction of angular contact bearing 4 edge main shafts 2 is provided with the adjustment part 5 that is used to regulate gap between the angular contact bearing 4, and adjustment part 5 is locking nut 5a; Pin along the angular contact bearing 4 on main shaft 2 axial directions through locking nut 5a; Be provided with cylinder roller bearing 6 between rearward end in tool rest 1 and the main shaft 2, bear radial load through cylinder roller bearing 6 is set here, bear axial load through angular contact bearing 4 is set; Adopt two kinds of bearing aggregate erections that main shaft 2 is beated in very little scope, guarantee the reliable high speed rotation of main shaft 2; Main shaft 2 can produce very big caloric value when rotating at a high speed simultaneously, can cause bearing temperature too high, produces distortion; And the bearing after the distortion has directly changed the pretension situation of bearing, has influenced the stiffness characteristics of bearing and the assembly quality of main shaft 2 and other parts, can make damage of bearings when serious; Power transmission accuracy and utilization rate meeting variation; Do not have corresponding structure to adjust in existing in good time, regulate the elasticity in gap between the angular contact bearing 4 here through locking nut 5a, just can well control the caused problem of temperature; Thereby guarantee the even running of main shaft 2, improved the machining accuracy and the efficient of gear.
Be provided with regulating sleeve 14 between radial ball bearing 13, fixed head 9 and the main shaft 2, can regulate the gap of radial ball bearing 13 and main shaft 2 here through regulating sleeve 14, guarantee the high speed rotation of main shaft 2 and prevent that main shaft 2 from beating in the rotation at a high speed on a large scale; Back-up ring 15 between main shaft 2, cylinder roller bearing 6, radial ball bearing 13 and the left bearing end cap 7, the effect of back-up ring 15 here is that each parts are separated, and prevents to influence each other at work.
Burr is cleaned out and disposed to part needs dresses during installation, and earlier with left bearing end cap 7 main shaft 2 of packing into, and the upper surface of measuring end cap is lower than the upper surface 0.3～0.5mm of main shaft 2 steps; Again angular contact bearing 4 is packed in the main shaft 2, note the installation direction of angular contact bearing 4 simultaneously, and with locking nut 5a locking (keeping suitable elasticity); Again the main shaft that assembles 2 is packed in the tool rest 1, fix left bearing end cap 7 with hexagon socket cap head screw again, and measure beating of main shaft 2 and be controlled between 0.002～0.003mm; And then cylinder roller bearing 6 packed in the main shaft 2, measure beating of main shaft 2 once more and be controlled between 0.002～0.003mm, with fixed head 9 and right bearing end cap 8 simultaneously after installing on the tool rest 1; The back-up ring 15 of packing into is put into radial ball bearing 13 again to fixed head 9, measures beating of main shaft 2 and is controlled between 0.002～0.003mm; Regulating sleeve 14 and following belt wheel 12 pack on main shaft 2, and upper belt-wheel 11 is contained on the motor shaft 10a, leans on outward installing belt wheel 11 as far as possible; Prevent when the machine of race; Upper belt-wheel 11 is not walked about, and goes up electrical testing main shaft 2 temperature after assembling is accomplished, and temperature is too high regulates the gap between the angular contact bearing 4 through locking nut 5a; The rotating speed of the main shaft 2 after installing reaches per minute 1000～3500 to be changeed, thereby guarantees the machining accuracy and the efficient of gear.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the defined scope of spirit of the present invention.
Claims (8)
1. the cutter in the gear-shaping machine drives device; It is characterized in that; Comprise tool rest (1), main shaft (2) and lead agency (3), described main shaft (2) is arranged in the tool rest (1), and lead agency (3) drives main shaft (2) and rotates; Be provided with between leading section in tool rest (1) and the main shaft (2) and be many groups angular contact bearing (4) of arranging shape; Contacting between angular contact bearing (4) and the main shaft (2) is angular contact, and the axial direction of angular contact bearing (4) edge main shaft (2) is provided with the adjustment part (5) that is used to regulate gap between the angular contact bearing (4), is provided with cylinder roller bearing (6) between rearward end in tool rest (1) and the main shaft (2).
2. the cutter in a kind of gear-shaping machine according to claim 1 drives device; It is characterized in that; The quantity of described angular contact bearing (4) is 3 groups; Described adjustment part (5) is locking nut (5a), pins along the angular contact bearing (4) on main shaft (2) axial direction through locking nut (5a).
3. the cutter in a kind of gear-shaping machine according to claim 1 and 2 drives device; It is characterized in that; Be provided with left bearing end cap (7) between the front end outside of described tool rest (1) and the main shaft (2); Be provided with right bearing end cap (8) in the rear end of tool rest (1) between the outside and main shaft (2), on main shaft (2), have step surface (2a), described left bearing end cap (7) end face is lower than step surface (2a) and is buckled on the step surface (2a).
4. the cutter in a kind of gear-shaping machine according to claim 3 drives device; It is characterized in that; Described lead agency (3) comprises fixed head (9), motor (10), upper belt-wheel (11) and following belt wheel (12); Described fixed head (9) is arranged between motor (10) and the main shaft (2), and upper belt-wheel (11) is connected to a fixed with motor shaft (10a), and following belt wheel (12) is fixing to being connected with main shaft (2); Described motor (10) rotates and drives upper belt-wheel (11) rotation, and upper belt-wheel (11) drives belt wheel (12) rotation down and then drives main shaft (2) and in tool rest (1), rotates.
5. the cutter in a kind of gear-shaping machine according to claim 4 drives device; It is characterized in that; Be provided with radial ball bearing (13) between described fixed head (9) and the main shaft (2), between fixed head (9) and motor shaft (10a), also be provided with radial ball bearing (13).
6. the cutter in a kind of gear-shaping machine according to claim 5 drives device, it is characterized in that, is provided with regulating sleeve (14) between described radial ball bearing (13), fixed head (9) and the main shaft (2).
7. the cutter in a kind of gear-shaping machine according to claim 6 drives device, it is characterized in that back-up ring (15) between described main shaft (2), cylinder roller bearing (6), radial ball bearing (13) and the left bearing end cap (7).
8. the cutter in a kind of gear-shaping machine according to claim 7 drives device, it is characterized in that described main shaft (2) is beated and is controlled between 0.002～0.003mm, and the rotating speed of described main shaft (2) reaches per minute 1000～3500 to be changeed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103086890A CN102366902A (en) | 2011-10-12 | 2011-10-12 | Cutter driving device in gear processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103086890A CN102366902A (en) | 2011-10-12 | 2011-10-12 | Cutter driving device in gear processing machine |
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| Publication Number | Publication Date |
|---|---|
| CN102366902A true CN102366902A (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103086890A Pending CN102366902A (en) | 2011-10-12 | 2011-10-12 | Cutter driving device in gear processing machine |
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| Country | Link |
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| CN (1) | CN102366902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480797A (en) * | 2018-03-15 | 2018-09-04 | 芜湖超源力工业设计有限公司 | A kind of high-precision machine outside gear machining equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000237902A (en) * | 1999-02-17 | 2000-09-05 | Matsuura Machinery Corp | Main shaft device |
| CN2801342Y (en) * | 2005-07-12 | 2006-08-02 | 西安北村精密机械有限公司 | Main shaft device of front end driving precision lathe |
| CN201089046Y (en) * | 2007-08-30 | 2008-07-23 | 陈立新 | Combined blade carrier of gear hobbing machine |
| CN201187410Y (en) * | 2008-05-12 | 2009-01-28 | 江苏苏亚机电制造有限公司 | Propeller pitch regulating mechanism of wind generating set |
| CN101658947A (en) * | 2009-09-04 | 2010-03-03 | 简东灿 | boring-milling machine |
| CN201708626U (en) * | 2010-06-30 | 2011-01-12 | 湘电集团有限公司 | Supporting structure of operating shaft with large axial force and high rotary speed |
| CN202317805U (en) * | 2011-10-12 | 2012-07-11 | 宁波市鄞州泰盛数控设备有限公司 | Tool driving device in gear machining machine |
-
2011
- 2011-10-12 CN CN2011103086890A patent/CN102366902A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000237902A (en) * | 1999-02-17 | 2000-09-05 | Matsuura Machinery Corp | Main shaft device |
| CN2801342Y (en) * | 2005-07-12 | 2006-08-02 | 西安北村精密机械有限公司 | Main shaft device of front end driving precision lathe |
| CN201089046Y (en) * | 2007-08-30 | 2008-07-23 | 陈立新 | Combined blade carrier of gear hobbing machine |
| CN201187410Y (en) * | 2008-05-12 | 2009-01-28 | 江苏苏亚机电制造有限公司 | Propeller pitch regulating mechanism of wind generating set |
| CN101658947A (en) * | 2009-09-04 | 2010-03-03 | 简东灿 | boring-milling machine |
| CN201708626U (en) * | 2010-06-30 | 2011-01-12 | 湘电集团有限公司 | Supporting structure of operating shaft with large axial force and high rotary speed |
| CN202317805U (en) * | 2011-10-12 | 2012-07-11 | 宁波市鄞州泰盛数控设备有限公司 | Tool driving device in gear machining machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480797A (en) * | 2018-03-15 | 2018-09-04 | 芜湖超源力工业设计有限公司 | A kind of high-precision machine outside gear machining equipment |
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Application publication date: 20120307 |