CN2709053Y - Cold ring rolling machine servo electric machinery driving cam feeding device - Google Patents
Cold ring rolling machine servo electric machinery driving cam feeding device Download PDFInfo
- Publication number
- CN2709053Y CN2709053Y CN 200420006216 CN200420006216U CN2709053Y CN 2709053 Y CN2709053 Y CN 2709053Y CN 200420006216 CN200420006216 CN 200420006216 CN 200420006216 U CN200420006216 U CN 200420006216U CN 2709053 Y CN2709053 Y CN 2709053Y
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- China
- Prior art keywords
- cam
- roller
- servomotor
- master slider
- servo electric
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- Expired - Fee Related
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Abstract
The utility model discloses a cold ring rolling machine servo electric machinery driving cam feeding device, comprising a servo electric machinery (24), a retarder (23) and a transmitting mechanism. The servo electric machinery (24) is connected with the retarder (23), the output shaft of the retarder is connected with the transmitting mechanism, and the transmitting mechanism is connected with a main slide block (18). A return oil cylinder (26) is fixed on a rack (25), having a piston rod connected with the main slide block (18). The utility model is characterized in that the transmitting mechanism also comprises a cam (21) and a roller (20), the roller (20) is fixed on the main slide block (18) and is contacted and connected with the cam (21), the cam (21) is key-connected with a cam shaft (30), and the cam shaft (30) is fixed on the rack (25) via a supporting base (22) and is connected with the retarder (23). The utility model can make feeding speed stable and reliable, with extended service life and reduced production cost.
Description
Affiliated technical field
The utility model belongs to cold rolling ring driven by servomotor feed arrangement technical field, relates generally to a kind of cold-rolling ring rolls driven by servomotor cam feed device.
Background technology
Facts have proved, drive the strength of feeding and the reasonability and the stability of speed standard, be directly connected to the precision of forging, in the different phase of spreading the feed speed that adapts should be arranged, requirement can respond rapidly to adjust and be in operation and not fluctuate.
Cold rolling machine extensively adopts oil cylinder hydraulic to drive master slider and realizes feeding in earlier stage, by electro-hydraulic proportional valve control speed governing.By the electro-hydraulic proportional valve characteristic curve as can be known, hydraulic oil, the proportioning valve variations in temperature can cause the proportioning valve changes in flow rate, voltage and flow are not complete linear relationship, and the range of instability is arranged, and the cleanliness of hydraulic oil degree is difficult to keep, this all will cause the ram speed instability, and precision is out of control.Use electro-hydraulic proportional valve, the hydraulic oil cylinder driving wedge is realized feeding by the roller that wedge promotes on the master slider, has same drawback, and the wedge guidance difficulties.Drive wedge with the servomotor ball-screw, it is also undesirable directly to promote the roller feeding by wedge.Use the hydraulic oil cylinder driving feeding, and the oil cylinder feed speed depends on wedge yielding speed, oil cylinder feeding applied pressure is considerably beyond the spreading resistance of deformation, and the feed system strain causes measure error to be difficult to compensation.Adopt AC servo motor to be connected with decelerator through transmission mechanism (ball-screw) in recent years again and promote master slider realization feeding, operating mode makes moderate progress, but is subjected to the restriction in load capacity and service life, and price is more expensive, and is difficult in maintenance, is difficult to repair.
Summary of the invention
The purpose of this utility model promptly produces thus, proposes a kind of cold-rolling ring rolls driven by servomotor cam feed device.Can make feed speed reliable and stable, prolong service life, and production cost reduces.
For achieving the above object, the technical scheme that the utility model is taked is: it is by servomotor, decelerator and transmission mechanism are formed, servomotor is connected with decelerator, reducer output shaft is connected with transmission mechanism, transmission mechanism is connected with master slider, the backhaul oil cylinder is fixed on the frame, its piston rod is connected with master slider, and transmission mechanism also comprises cam and roller, and roller is fixed on the master slider, be connected with the cam contact, cam is connected with the cam axle key, and camshaft is fixed on the frame by bearing, and it is connected with decelerator.
Cam face of the present utility model is a cylindrical cam, and as shown in Figure 4, cam profile is Archimedes spiral R in (360-B-C) angular range
R＝r+D(A-B)
R-polar radius (millimeter), r-base radius (millimeter)
A-polar angle (degree)
The every degree increment of D-polar radius, millimeter/degree
H＝Rmax-Rmin
The maximum polar radius of H-master slider stroke Rmax-, the minimum polar radius of Rmin-
M＝360PD/2π
The every degree increment of M-camshaft torque NM P-spreading power N D-polar radius m/ degree
V＝360Dn/60i
V-master slider feed speed mm/s, the every degree positive quantity of D-polar radius mm/ degree
N-servomotor rotating speed rpm, I-decelerator gearratio
R1, R2, R3 are arc radius, and R4 is the roller radius, and cam contour is R, R1, R2, the closed figure that R3 forms.Because D is a constant, as long as the cam rotating speed is at the uniform velocity, then translation feed speed at the uniform velocity, is to adapt to the rolling speed requirement also, only need set the servomotor rotating speed according to the displacements of master slider difference to get final product.
Beneficial effect
1, high product precision.The mechanical feed system is not disturbed by working environment, is in stable state in whole spreading process.
2, cost is low, processing and manufacturing easily.Cam and roller can be processed on universal machine tools, and machining accuracy is controlled easily.
3, ability is strong, can adapt to the needs of high-power cold-rolling ring rolls.
4, installation, Operation and maintenance are conveniently.
Description of drawings
Fig. 1 is a utility model place machine tool structure schematic diagram
Fig. 2 is a driven by servomotor cylindrical cam feed arrangement
Fig. 3 is the vertical view of Fig. 2
Fig. 4 is contour curve of cylindrical cam figure
Fig. 5 is a stepper motor drive end face cam feed arrangement
The specific embodiment
In conjunction with the accompanying drawings the utility model is further specified:
As shown in Figures 2 and 3: cam (21) is installed on the camshaft (30), camshaft is installed on the bearing (22) by bearing, camshaft (30) is connected with decelerator (23), AC servo motor (24) is installed in decelerator (23) top, decelerator (23), bearing (22) is installed on the base plate (31), more than the driving feed arrangement of Zu Chenging is installed between master slider (18) and the frame right plate (25), base plate (31) is contained in the left side of frame right plate (25), the cylinder body of oil cylinder (26) is fixed on the frame right plate (25), piston rod and master slider (18) connect, oil cylinder makes the roller (20) that is installed on the master slider (18) be adjacent to cam (21) all the time, feeding drives and is mechanical type, and backhaul is a fluid pressure type.
During lathe work, see Fig. 1, Fig. 2, manipulator (15) will be gone up the position that blank in the hopper is delivered to diagram (2), and contact with working roll (3), core roller (13) penetrates in the workpiece (2), servomotor (24) drives cam (21) through decelerator (23) and is rotated counterclockwise around the center line AB that is parallel to roller (20) axis, in roller (20) rotation on one side that is mounted on the master slider (18), overcoming under oil cylinder (26) the setting resistance situation on one side, drive master slider (18) along guide rail (1) feeding left, bogie wheel (14) the driving core roller (13) that is installed on the master slider is moved to the left, core roller strap rotating ring base (2) is moved to the left, press to the roll milling wheel (11) that is rotating, bogie wheel is done the feed motion of different phase by standard, and workpiece rotates under core roller radial pressure and the acting in conjunction of roll milling wheel tangent direction friction power, workpiece is attenuation gradually, and diameter increases gradually.Circularity roller (4) is set under the resistance situation overcoming oil cylinder (8), the passive gradually yielding in below left, when spreading when finishing, oil cylinder pulling circularity roller (4), circularity roller are initiatively near till the locating piece (5).At this moment working roll (3) has broken away from workpiece (2), continues spreading again, and workpiece contact working roll (3) continues to roll over a little again, and workpiece size arrives.Measuring roll (16) is also pushed to right-handly gradually by workpiece during this time, set under the resistance situation overcoming oil cylinder (19), and passive yielding, its measuring roll drives grating chi (17) when falling back on desired location to the right, ring " size to ", spreading finishes.So cam turns clockwise, the bogie wheel (14) that oil cylinder (26) drives on the master slider (18) withdraws to the right, and when cam went to curve minimum point contact roller, then slide block retreated to terminal point.Simultaneously, core roller (13) resets to the right, and the core roller is extracted out, and forging falls into blanking groove, so far finishes a working cycles.
Embodiment 2
As shown in Figure 5, cam face is an edge cam, during work, servomotor (24) drives cam (33) rotation by decelerator (32), and cam is around the center line CD rotation perpendicular to roller (20) axle, and the cam driving rolls drives master slider (18) feeding left, oil cylinder (26) makes roller (20) be adjacent to cam (33) all the time, the slide block backhaul is driven by oil cylinder (26), and feeding drives and is mechanical type, and backhaul is a fluid pressure type.
Claims (3)
1, a kind of cold-rolling ring rolls driven by servomotor cam feed device, comprise servomotor (24), decelerator (23) and transmission mechanism, servomotor (24) is connected with decelerator (23), reducer output shaft is connected with transmission mechanism, transmission mechanism is connected with master slider (18), backhaul oil cylinder (26) is fixed on the frame (25), its piston rod is connected with master slider (18), it is characterized in that: transmission mechanism also comprises cam (21) and roller (20), roller (20) is fixed on the master slider (18), be connected with cam (21) contact, cam (21) is connected with camshaft (30) key, and camshaft (30) is fixed on the frame (25) by bearing (22), and it is connected with decelerator (23).
2, cold-rolling ring rolls driven by servomotor cam feed device according to claim 1, it is characterized in that: the working portion of the outline line of described cam (21) is an Archimedes spiral, inoperative is a circular arc line partly, and polar radius is crescent shape less than base radius on the circular arc line.
3, cold-rolling ring rolls driven by servomotor cam feed device according to claim 1 is characterized in that: the described cam (21) that is installed in decelerator (23) one sides can be edge cam, is connected with the contact of roller (20) on the master slider (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006216 CN2709053Y (en) | 2004-02-25 | 2004-02-25 | Cold ring rolling machine servo electric machinery driving cam feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006216 CN2709053Y (en) | 2004-02-25 | 2004-02-25 | Cold ring rolling machine servo electric machinery driving cam feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709053Y true CN2709053Y (en) | 2005-07-13 |
Family
ID=34848404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420006216 Expired - Fee Related CN2709053Y (en) | 2004-02-25 | 2004-02-25 | Cold ring rolling machine servo electric machinery driving cam feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709053Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170866A (en) * | 2013-03-18 | 2013-06-26 | 西北工业大学 | Roller wheel type feed device |
| CN103925399A (en) * | 2014-05-07 | 2014-07-16 | 西安交通大学 | Diaphragm-type pneumatic proportional pressure reducing valve of edge cam driven by servo motor directly |
-
2004
- 2004-02-25 CN CN 200420006216 patent/CN2709053Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170866A (en) * | 2013-03-18 | 2013-06-26 | 西北工业大学 | Roller wheel type feed device |
| CN103925399A (en) * | 2014-05-07 | 2014-07-16 | 西安交通大学 | Diaphragm-type pneumatic proportional pressure reducing valve of edge cam driven by servo motor directly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |