CN2850775Y - Drilling and milling device for elliptical pocket - Google Patents
Drilling and milling device for elliptical pocket Download PDFInfo
- Publication number
- CN2850775Y CN2850775Y CN 200520143762 CN200520143762U CN2850775Y CN 2850775 Y CN2850775 Y CN 2850775Y CN 200520143762 CN200520143762 CN 200520143762 CN 200520143762 U CN200520143762 U CN 200520143762U CN 2850775 Y CN2850775 Y CN 2850775Y
- Authority
- CN
- China
- Prior art keywords
- calibration mandrel
- milling
- location calibration
- base
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
The utility model relates to a drilling and milling device for elliptical pockets, which is arranged in an elastic gripping head of a main shaft of a digital controlled lathe and on a trailing bar. A drill sleeve (23) and a milling cutter sleeve (23') which are arranged in a milling gripping head (21) clamped by the elastic gripping head (14) in the front end of the main shaft (13) are fastened through set screws (22). A bearing seat (33) is fixed on a base (31) of a positioning dividing device (30) arranged on the X axis trailing bar (15), and a duplex angular contact bearing (32) and an external distance sleeve (44) are arranged in the bearing seat (33). The lower end of a positioning dividing mandrel (36) is put in inner holes of the duplex angular contact bearing (32) and the bearing seat (33), and the upper end is put in a retainer (37) to be processed. The head of a butt fixing pin shaft (40) in a pin shaft base (42) which is fixed on the other end of the base (31) is clamped in an intermediate step circumferential direction high precision equal division holes arranged in the positioning dividing mandrel (36). The utility model has the advantages of compact structure, low cost and high efficiency, which is suitable for processing elliptical pockets of entity retainers of miniature bearings with high precision.
Description
Technical field
The utility model relates to a kind of processing unit (plant) of bearing holder, particularly relates to the brill milling attachment in a kind of oval pocket hole.
Background technology
Precise miniature bearing has a wide range of applications in national defense and military fields such as space flight, aviation, navigations, and is along with the development of situation, more and more higher to the performance requirement of bearing, therefore, the precision of retainer is higher, and shape is more special, and the solid cage in oval pocket hole is also more and more.
At present, the oval pocket hole of solid cage is to adopt the method for machining to finish, and normally processes on common end mill or CNC milling machine.The oval pocket of processing hole on common end mill, the processing technology of generally taking is: adopt manual dividing head to carry out calibration, process center hole with drill bit earlier, change slotting cutter then, mill out elliptical aperture, the subject matter that this processing method exists is, hole surface is coarse, the texture confusion, poor dimensional precision, calibration is easily made mistakes, labour intensity is big, efficient is low, needs two people operation, and cooperation is prone to problem.On CNC milling machine, process, the processing technology of generally taking is: the configuration NC dividing head, under the control of digital control system, according to programming, finish automatic indexing, processing automatically, the machining accuracy of this processing method is higher, but the subject matter that exists is that equipment volume is bigger, the investment costliness, and the multi-shaft interlocked function of CNC milling machine can't be effectively played, cost performance is too low, and simultaneously, miniature bearing retainer pocket hole dimension is little, the rotating speed of main shaft is relatively low, and the surface quality in hole is not high.
The utility model content
In order to overcome the deficiency in the process technology of existing oval pocket hole, the purpose of this utility model, provide the brill milling attachment in a kind of oval pocket hole, its compact conformation, cost is low, efficient is higher, be suitable for the hole processing of the oval pocket of high-precision micro bearing holder.
To achieve these goals, the utility model is taked following technical scheme:
The brill milling attachment in described oval pocket hole, the collet of dress clamps the brill milling chuck that bores the milling cutter assembly in its front-end of spindle, the drill bushing and the milling cutter cover that bore dress in the milling chuck tighten up it by holding screw, and the centre drill and the slotting cutter of dress tighten up it by holding screw in drill bushing and the milling cutter cover; Be embedded with the X-axis planker above the described Z axis carriage, the base of location indexing means is housed on the X-axis planker, be fixed with bearing block on the base, duplex angular contact bearing and outer separator are housed in the bearing block, pack into the endoporus of duplex angular contact bearing and bearing block of the lower end of location calibration mandrel, locking nut is equipped with at the lower end screw position of location calibration mandrel, the intermediate step of location calibration mandrel is circumferentially with the High Accuracy and Divide hole, the upper end of the location calibration mandrel retainer to be processed of packing into, above the retainer to be processed pressing plate is housed, the knurled nut is housed above the pressing plate, and the knurled nut is enclosed within on the upper end head threads of location calibration mandrel; At the base other end is to be fixed with axis pin base by screw and circular arc tightening nut on the T-shape circular arc type groove at center with the location calibration mandrel centre of gyration, be equipped with in the axis pin base by stage clip withstand to the rationed marketing axle, the head of the band taper of rationed marketing axle is stuck in the High Accuracy and Divide hole that location calibration mandrel is provided with.The endoporus and the end face of described location calibration mandrel and bearing block are equipped with sealing ring and sealing ring.The bottom of described axis pin base is provided with circular arc guiding step.
Owing to adopted aforesaid oval pocket hole drill milling attachment, the utlity model has following good effect:
The surface roughness in oval pocket hole reaches Ra0.8 μ m, and texture is evenly fine and closely woven under 20 power microscopes, and dimensional accuracy reaches 0.01mm, and shape and positional precision reach product requirement fully;
Labour intensity reduces greatly, and only needs one man operation, and misuse rate is extremely low, the quality stability height;
Simple and compact for structure, low cost of manufacture, the cost performance height can be finished the car shaping of solid cage and the brill Milling Process in pocket hole on a numerically controlled lathe.
The oval milling attachment that bores described in the utility model, the precision that is particularly suitable for small batch, the oval pocket of high-precision micro bearing holder hole is bored Milling Process.
The drawing explanation
Fig. 1 is an installation site of the present utility model schematic diagram;
Fig. 2 is a brill milling cutter assembly structure cutaway view of the present utility model;
Fig. 3 is a solid cage of the present utility model location indexing means structure cutaway view;
The specific embodiment:
As shown in Figure 1, 2, 3, the utility model is installed in the main shaft collet of numerically controlled lathe and on the planker, on the head of a bed of numerically controlled lathe lathe bed 10 left ends main shaft 13 is housed, main shaft 13 connects main axle servo motor 12 by belt, in main shaft 13 front ends collet 14 is housed, collet 14 clamps the brill milling chuck 21 that bores milling cutter assembly 20, bore the drill bushings 23 of dress in the milling chuck 21 and milling cutter cover 23 ' it is tightened up by holding screw 22, the centre drill 25 of drill bushing 23 and milling cutter cover 23 ' interior dress and slotting cutter 25 ' by holding screw 24 it is tightened up.The right-hand member of lathe bed 10 is equipped with Z axis carriage 16, Z axle servomotor 11 is fixed on a side of the lathe bed 10 parallel with main shaft 13, Z axle servomotor 11 connects Z axis carriage 16 by ball-screw, be embedded with X-axis planker 15 above the Z axis carriage 16, the base 31 of location indexing means 30 is housed on the X-axis planker 15, be fixed with bearing block 33 on the base 31, duplex angular contact bearing 32 and outer separator 44 are housed in the bearing block 33, pack into the endoporus of duplex angular contact bearing 32 and bearing block 33 of the lower end of location calibration mandrel 36, and the endoporus and the end face of itself and bearing block 33 are close to and sealed bearing by sealing ring 34 and sealing ring 35, locking nut 45 is equipped with at the lower end screw position of location calibration mandrel 36, the intermediate step of location calibration mandrel 36 is circumferentially with the High Accuracy and Divide hole, the upper end of location calibration mandrel 36 retainer 37 to be processed of packing into, above the retainer 37 to be processed pressing plate 38 is housed, knurled nut 39 is housed above the pressing plate 38, and knurled nut 39 is enclosed within on the upper end head threads of location calibration mandrel 36.At base 31 other ends is to be fixed with axis pin base 42 by screw and circular arc tightening nut 43 on the T-shape circular arc type groove at center with the location calibration mandrel centre of gyration, the bottom of axis pin base 42 is provided with circular arc guiding step, be equipped with in the axis pin base 42 by compression spring 41 withstand to rationed marketing axle 40, the head of the band taper of rationed marketing axle 40 is stuck in the High Accuracy and Divide hole that location calibration mandrel 36 is provided with.
Operating procedure of the present utility model is as follows:
1, collet 14 clamps and bores milling chuck 21, drill bushing 23 and broach shell 23 ' by holding screw 22 it is fixed tightly in the brill milling chuck 21, centre drill 25 and slotting cutter 25 ' by holding screw 24 with its be fixed tightly in drill bushing 23 and milling cutter cover 23 ' in, when changing cutter, only need unclamp holding screw 22 gets final product, drill bushing 23 and centre drill 25 (or milling cutter cover 23 ' and slotting cutter 25 ') are changed in the lump, and do not unclamped collet 14.
2, retainer 37 to be processed, pressing plate 38, knurled nut 39 are overlapped in order the position, upper end of the location calibration mandrel 36 of packing into respectively, rotate knurled nut 39 then, pressing plate 38 and retainer 37 to be processed are compressed simultaneously, again will be to locating so that retainer 37 is carried out calibration in the circumferential High Accuracy and Divide hole of the intermediate step of rationed marketing axle 40 insertion location calibration mandrels 36.
3, X-axis planker 15 moves laterally, and the retainer center is moved on the center line of main shaft 13.
4, loop start under programme-control, starts main axle servo motor 12, makes centre drill 25 and slotting cutter 25 ' high speed rotation, starts Z axle servomotor 11, and Z axis carriage 16 is vertically moved, and then can bore Milling Process.
5, behind an oval pocket of the every completion of processing hole, extract earlier rationed marketing axle 40, artificial then 36 1 angles of rotational positioning calibration mandrel will be inserted in another halving hole of location calibration mandrel 36 rationed marketing axle 40 again.The processing in each oval pocket hole all is operations under digital control system control, until whole holes completion of processing.
Claims (3)
1, the brill milling attachment in a kind of oval pocket hole, be located in the main shaft collet of numerically controlled lathe and on the planker, it is characterized in that: the collet (14) of dress clamps in described main shaft (13) front end the brill milling chuck (21) that bores milling cutter assembly (20), the drill bushing (23) and the milling cutter cover (23 ') that bore dress in the milling chuck (21) tighten up it by holding screw (22), and the centre drill (25) and the slotting cutter (25 ') of dress tighten up it by holding screw (24) in drill bushing (23) and the milling cutter cover (23 '); Be embedded with X-axis planker (15) above the described Z axis carriage (16), the base (31) of location indexing means (30) is housed on the X-axis planker (15), be fixed with bearing block (33) on the base (31), duplex angular contact bearing (32) and outer separator (44) are housed in the bearing block (33), pack into the endoporus of duplex angular contact bearing (32) and bearing block (33) of the lower end of location calibration mandrel (36), locking nut (45) is equipped with at the lower end screw position of location calibration mandrel (36), the intermediate step of location calibration mandrel (36) is circumferentially with the High Accuracy and Divide hole, the upper end retainer to be processed (37) of packing into of location calibration mandrel (36), pressing plate (38) is housed above the retainer to be processed (37), knurled nut (39) is housed above the pressing plate (38), and knurled nut (39) is enclosed within on the upper end head threads of location calibration mandrel (36); At base (31) other end is to be fixed with axis pin base (42) by screw and circular arc tightening nut (43) on the T-shape circular arc type groove at center with the location calibration mandrel centre of gyration, be equipped with in the axis pin base (42) by compression spring (41) withstand to rationed marketing axle (40), the head of the band taper of rationed marketing axle (40) is stuck in the High Accuracy and Divide hole that location calibration mandrel (36) is provided with.
2, the brill milling attachment in oval pocket according to claim 1 hole is characterized in that: the endoporus of described location calibration mandrel (36) and bearing block (33) and end face are equipped with sealing ring (34) and sealing ring (35).
3, the brill milling attachment in oval pocket according to claim 1 hole is characterized in that: the bottom of described axis pin base (42) is provided with circular arc guiding step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143762 CN2850775Y (en) | 2005-12-31 | 2005-12-31 | Drilling and milling device for elliptical pocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143762 CN2850775Y (en) | 2005-12-31 | 2005-12-31 | Drilling and milling device for elliptical pocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2850775Y true CN2850775Y (en) | 2006-12-27 |
Family
ID=37584741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143762 Expired - Lifetime CN2850775Y (en) | 2005-12-31 | 2005-12-31 | Drilling and milling device for elliptical pocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2850775Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152080A (en) * | 2011-04-19 | 2011-08-17 | 郑广辉 | Process for machining isolated steel belt of slewing bearing steel ball |
| CN102267042A (en) * | 2011-07-12 | 2011-12-07 | 田天红 | Pocket machining device and method for machining integral bearing retainer of wind power equipment |
| CN103042267A (en) * | 2012-12-10 | 2013-04-17 | 大连瑞谷科技有限公司 | Spiral milling cutter for machining high-precision pocket hole of bearing retainer |
| CN110605583A (en) * | 2019-10-31 | 2019-12-24 | 江苏东方成套设备制造集团有限公司 | Special milling and drilling machine for outer circle surface of workpiece |
-
2005
- 2005-12-31 CN CN 200520143762 patent/CN2850775Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152080A (en) * | 2011-04-19 | 2011-08-17 | 郑广辉 | Process for machining isolated steel belt of slewing bearing steel ball |
| CN102152080B (en) * | 2011-04-19 | 2012-10-24 | 郑广辉 | Process for machining isolated steel belt of slewing bearing steel ball |
| CN102267042A (en) * | 2011-07-12 | 2011-12-07 | 田天红 | Pocket machining device and method for machining integral bearing retainer of wind power equipment |
| CN102267042B (en) * | 2011-07-12 | 2013-04-24 | 田天红 | Pocket machining device and method for machining integral bearing retainer of wind power equipment |
| CN103042267A (en) * | 2012-12-10 | 2013-04-17 | 大连瑞谷科技有限公司 | Spiral milling cutter for machining high-precision pocket hole of bearing retainer |
| CN110605583A (en) * | 2019-10-31 | 2019-12-24 | 江苏东方成套设备制造集团有限公司 | Special milling and drilling machine for outer circle surface of workpiece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202963994U (en) | Rotating table numerical control multi-station machine tool | |
| CN103753322A (en) | Device and process for machining differential housing | |
| CN112518446B (en) | Machining device and method for aeroengine honeycomb numerical control vertical lathe mill | |
| CN201436138U (en) | Numerically-controlled machining center machine for keyhole specimen | |
| CN114161170B (en) | Multi-shaft turning and milling composite center special for oil cylinder machining and working method thereof | |
| CN110508832A (en) | Multitool high efficiency synchronous dynamic balancing turnery processing lathe and processing method | |
| CN206662707U (en) | A kind of double combined numerically controlled lathes of main shaft turnning and milling | |
| CN2850775Y (en) | Drilling and milling device for elliptical pocket | |
| CN203863344U (en) | Connecting rod bolt hole and step face finishing machine | |
| CN210413458U (en) | Numerical control inclined lathe bed multi-shaft turning and milling compound machine | |
| CN203726231U (en) | Machining device of differential mechanism shell | |
| CN209477316U (en) | A kind of turning molding machine of profiled piece | |
| CN210587353U (en) | Horizontal opposite vertex processingequipment of thin wall blade | |
| CN217096749U (en) | Double-spindle numerical control lathe capable of realizing multi-process machining | |
| CN107900394B (en) | Five-axis linkage machining center | |
| CN214393248U (en) | Drilling and milling head positioning device of turning and milling combined machine tool | |
| CN110026571B (en) | Turning forming device and process for special-shaped piece | |
| CN214868619U (en) | Waterwheel type multi-station combined processing machine tool | |
| CN215092453U (en) | Turning and milling combined machining center | |
| CN213052814U (en) | Numerical control three-hole drilling machine | |
| CN101912983B (en) | Numerical control machine tool for machining bearing retainer | |
| CN206153585U (en) | Be used for rough machined special numerical control lathe of roll pass | |
| CN212578000U (en) | Drilling, tapping and key slot milling integrated special machine for processing perforating gun | |
| CN218487224U (en) | Rotatable main shaft mechanism of numerical control slot milling machine | |
| CN216966976U (en) | Vertical numerical control rotary worktable for machining shell boring hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |