CN101462244B - Equipment for grinding surface of long shaft workpiece - Google Patents
Equipment for grinding surface of long shaft workpiece Download PDFInfo
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- CN101462244B CN101462244B CN2009101160717A CN200910116071A CN101462244B CN 101462244 B CN101462244 B CN 101462244B CN 2009101160717 A CN2009101160717 A CN 2009101160717A CN 200910116071 A CN200910116071 A CN 200910116071A CN 101462244 B CN101462244 B CN 101462244B
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Abstract
The invention discloses a device for grinding the surface of a long-shaft type workpiece, which comprises a guide rail arranged on a lathe bed, wherein the guide rail is provided with a grinding head sleeved on the workpiece annularly; the grinding head is equivalently provided with at least two grinding strips annularly; the grinding head is also provided with a structure to drive all the grinding strips to perform radial motions so as to enclasp or break away from the workpiece; and the grinding head is driven to perform axial reciprocating movement on the guide rail by a driving device, and achieves the processing of grinding the outer circular surface of the workpiece through the rotary motion of the workpiece and the axial reciprocating movement of the grinding head. The grinding head of the device is sleeved on the workpiece annularly and performs axial reciprocating movement along the guide rail simultaneously so as to ensure the straightness of the motion and the grinding precision of the workpiece surface in the grinding process, and solve the difficult problem that the processing quality cannot reach the design requirement in the process of the one-step grinding of the long-shaft kind workpiece, thus the workpiece roundness, the cylindricity and the surface roughness can achieve the designed specified value, and the product quality and the working efficiency are improved.
Description
Technical field
The present invention relates to the Machining Technology field, especially a kind of equipment for grinding that long-axle workpieces is carried out surfacing processing that is applicable to.
Background technology
In mechanical processing technique, outer round surface to shaft-like workpiece carries out grinding, commonly used is the form that adopts peripheral milling, by abrasive grinding wheel grinding is carried out on the excircle of workpiece surface, but if the long workpiece of length, for example length reaches the oil cylinder piston bar more than 13 meters, adopt common peripheral milling processing, then be difficult to guarantee the machining accuracy of workpiece, particularly in circularity, aspect such as cylindricity and surface roughness, all can't reach the setting of specification requirement, grinding length of energy reaches the long-axle workpieces of the such class of piston rod more than 13 meters at present, domestic temporary no document record report.
Summary of the invention
The objective of the invention is: a kind of equipment for grinding surface of long shaft workpiece is provided, it can disposablely be finished the grinding on long shaft-like workpiece surface of length, the machining accuracy that guarantees workpiece reaches designing requirement at aspects such as circularity, cylindricity and surface roughnesses, to improve the quality of products and operating efficiency.
The present invention realizes that the technical scheme that its purpose adopts is: a kind of equipment for grinding surface of long shaft workpiece, has lathe bed, lathe bed is provided with guide rail and headstock, guide rail is provided with grinding machine head and tailstock, workpiece is clamped between headstock and the tailstock, headstock drives workpiece and rotates, the grinding machine head ring set is being made axially reciprocating on the workpiece and by the drive unit drive on guide rail, described grinding machine head comprises and being slidingly arranged on the guide rail, support with ring-shaped jacket, annular five equilibrium is provided with at least two abrasive stick seats in the ring-shaped jacket, be fixed with abrasive stick on the abrasive stick seat, be disposed with axial pushing block between ring-shaped jacket and the abrasive stick seat with inclined-plane, fairlead and jacking block radially, radially an end of jacking block contacts with the cooperation of axial pushing block inclined-plane, the other end passes fairlead and the abrasive stick seat fixes, and when axially pushing block moves axially, passes through ramp effect, promote radially jacking block and drive the abrasive stick seat and move radially, make the abrasive stick that is fixed on the abrasive stick seat hold workpiece tightly.
Furtherly, described ring-shaped jacket two ends are respectively arranged with end plate, fairlead is fixed between the two end plates, also is provided with impeller-hub on the grinding machine head and makes axially movable oil cylinder and make first return mechanism that axial pushing block returns and make abrasive stick break away from second return mechanism of surface of the work to pushing block.
Furtherly, described oil cylinder is fixed on the end plate, and its piston rod passes the end plate impeller-hub and moves axially to pushing block; Described first return mechanism comprises guide post, and guide post is fixed on the axial pushing block and stretches out outside the end plate, is with stage clip on the guide post external part plate portion; Described second return mechanism comprises the pin that is arranged on the end plate, is connected with extension spring on the pin, and the extension spring other end and abrasive stick seat are fixed.
For solving in grinding process, the high temperature that produces because of grinding is burnt to surface of the work, and described ring-shaped jacket is provided with the cooling fluid hole, and cooling fluid can enter into surface of the work by the cooling fluid hole.
For realizing that the accessible of grinding machine head passes through, overcome the winding degree that long-axle workpieces produces when grinding, the center line and the process equipment pivot that guarantee workpiece remain in the rational center of rotation scope, make the workpiece running steadily, described lathe bed is provided with the telescopic roller bracket that is used for supporting workpiece.
The invention has the beneficial effects as follows: the grinding machine head that the present invention is used is owing to be that ring set is on workpiece, removing material adopts abrasive stick to be circular layout, grinding machine head is again to make axially reciprocating along guide rail simultaneously, the linearity that moves in the grinding process and the grinding accuracy of surface of the work have been guaranteed thus, thereby solved at present when disposable grinding length reaches the long-axle workpieces of the such class of piston rod more than 13 meters, crudy does not reach the difficult problem of designing requirement, workpiece circularity and cylindricity all can reach the setting of design, surface roughness can be brought up to Ra0.4～Ra0.2 from Ra3.2, has improved product quality and operating efficiency.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 be among Fig. 1 A to the structure enlarged diagram.
Fig. 3 is the sectional structure enlarged diagram of B-B among Fig. 2.
1. lathe beds, 2. guide rails, 3. headstocks, 4. grinding machine heads, 41. supports, 411. ring-shaped jackets, 42. end plates, 43. abrasive stick seats, 44. axial pushing block 441. through holes 45. fairleads 46. jacking block 47. oil cylinders 48. first return mechanisms 481. guide posts 482. stage clips 49. second return mechanisms 491. pins 492. extension springs 5. tailstocks 6. abrasive sticks 7. drive units 71. motor 72. speed adjusting gears 73. chain-drive mechanisms 8. cooling fluid holes 9. roller brackets radially among the figure
The specific embodiment
The present invention is further illustrated with preferred embodiment in conjunction with the accompanying drawings now, and these accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only shows the formation relevant with the present invention.
A kind of equipment for grinding surface of long shaft workpiece shown in Figure 3 as Fig. 1 Fig. 2, has lathe bed 1, on lathe bed 1, be provided with guide rail 2 and drive the headstock 3 that workpiece rotates, slide on the guide rail 2 and be provided with grinding machine head 4 and tailstock 5, workpiece is clamped between headstock 3 and the tailstock 5, grinding machine head 4 ring sets are on workpiece, annular etc. is arranged with four abrasive sticks 6 on grinding machine head, also be provided with four abrasive sticks 6 of promotion on the grinding machine head 4 and do radial motion simultaneously to hold or to break away from the structure of workpiece tightly, grinding machine head 4 is made axially reciprocating on guide rail under the drive of drive unit 7, by workpiece rotatablely move and the axially reciprocating of grinding machine head 4 is realized grinding to the excircle of workpiece surface.
Specifically, grinding machine head 4 comprises the support 41 that is slidingly arranged on the guide rail, support 41 has a ring-shaped jacket 411, be respectively equipped with an end plate 42 at the two ends of ring-shaped jacket 411, ring-shaped jacket 411 interior annulars etc. are arranged with four abrasive stick seats 43, four abrasive stick seats 43 distribute with center line angle at 45 respectively, abrasive stick seat 43 two ends flush with the lateral surface of two end plates 42, abrasive stick 6 is fixed on the abrasive stick seat 43, be provided with axial pushing block 44 between ring-shaped jacket 411 and the abrasive stick seat 43 successively, fairlead 45 and two are jacking block 46 radially, wherein fairlead 45 is fixed between the two end plates 42, axially pushing block 44 can move on fairlead 45, axially pushing block 44 has two inclined-planes, two radially an end of jacking block 46 cooperate with axial pushing block 44 inclined-planes respectively and contact, the other end passes fairlead 45 fixedlys connected with abrasive stick seat 43, and horizontal axis is symmetrically fixed with two oil cylinders 47 on the end plate 42, and the piston rod of oil cylinder 47 passes end plate 42 and contacts with the end face of axial pushing block 44.
Also be provided with on the grinding machine head 4 and make axial pushing block 44 first return mechanism 48 that returns and second return mechanism 49 that makes abrasive stick 6 disengaging surface of the works, first return mechanism 48 is axially to fix two guide posts 481 on the pushing block 44, two guide posts 481 pass end plate 42 and stretch out outside the end plate 42, are with stage clip 482 on its extension respectively; 49 of second return mechanisms be on two end plates 42 respectively annular be provided with four pins 491, four pins 491 and four abrasive stick seat 43 angles respectively at 45 distribute, fix an extension spring 492 between per two pins 491, fixing in the middle of the extension spring 492 with abrasive stick seat 43, form a loop configuration.When carrying out grinding, oil cylinder 47 impeller-hubs move axially to pushing block 44, pass through ramp effect, promoting radially, four abrasive stick seats 43 of jacking block 46 drives move radially simultaneously, thereby make four abrasive sticks 6 that are fixed on the abrasive stick seat 43 hold workpiece tightly, meanwhile, stage clip 482 is compressed, extension spring 492 is elongated, by workpiece rotatablely move and the axially reciprocating of grinding machine head 4 is realized grinding to the excircle of workpiece surface, grinding finishes in the time of maybe need changing abrasive stick 6, oil cylinder 47 stops to provide power, because the effect of stage clip 482, spur axial pushing block 44 and return, break away from radially jacking block 46, at this moment, extension spring 492 promptly spurs abrasive stick seat 43 and returns the home position, thereby makes abrasive stick 6 break away from surface of the work.
In order to realize the axially reciprocating of grinding machine head 4, drive unit 7 comprises motor 71, speed adjusting gear 72 and chain-drive mechanism 73, chain-drive mechanism 73 is fixedlyed connected with grinding machine head 4, motor 71 drives chain-drive mechanism 73 motions by speed adjusting gear 72, by the positive and negative running of motor 71, thus the axially reciprocating of realization grinding machine head 4.
For solving in grinding process, high temperature burning because of the grinding generation to surface of the work, the ring-shaped jacket 411 of support 41 is provided with cooling fluid hole 8, cooling fluid can enter into surface of the work by cooling fluid hole 8 and the through hole 441 that is arranged on the axial pushing block 44, and take cooling fluid to the whole work-piece circumferential surface by the rotation of workpiece self, prevent the high temperature that produces because of grinding to the burning of surface of the work, thereby prolong the service life of abrasive stick 6.
For overcoming the winding degree that long-axle workpieces produces when the grinding, the center line and the process equipment pivot that guarantee workpiece remain in the rational center of rotation scope, make the workpiece running steadily, lathe bed 1 is provided with the telescopic roller bracket 9 that is used for supporting workpiece, this roller bracket 9 can support workpiece when grinding, and grinding machine head 4 by the time can withdraw automatically, avoiding grinding machine head 4, realize that the accessible of grinding machine head 4 passes through.
With above-mentioned be enlightenment according to inventive embodiment, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the technology of the present invention thought.Technical scope of the present invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (7)
1. equipment for grinding surface of long shaft workpiece, has lathe bed (1), lathe bed (1) is provided with guide rail (2) and headstock (3), guide rail (2) is provided with grinding machine head (4) and tailstock (5), workpiece is clamped between headstock (3) and the tailstock (5), headstock (3) drives workpiece and rotates, grinding machine head (4) ring set is being made axially reciprocating on the workpiece and by drive unit (7) drive on guide rail (2), it is characterized in that: described grinding machine head (4) comprises and being slidingly arranged on the guide rail (2), support (41) with ring-shaped jacket (411), annular five equilibrium is provided with at least two abrasive stick seats (43) in the ring-shaped jacket (411), be fixed with abrasive stick (6) on the abrasive stick seat (43), be disposed with axial pushing block (44) between ring-shaped jacket (411) and the abrasive stick seat (43) with inclined-plane, fairlead (45) and jacking block (46) radially, radially an end of jacking block (46) contacts with the cooperation of axial pushing block (44) inclined-plane, the other end passes fairlead (45) and fixes with abrasive stick seat (43), axially pushing block (44) is when moving axially, pass through ramp effect, promote radially jacking block (46) and drive abrasive stick seat (43) and move radially, make the abrasive stick (6) that is fixed on the abrasive stick seat (43) hold workpiece tightly.
2. equipment for grinding surface of long shaft workpiece according to claim 1, it is characterized in that: described ring-shaped jacket (411) two ends are respectively arranged with end plate (42), fairlead (45) is fixed between the two end plates (42), also is provided with impeller-hub on the grinding machine head (4) and makes axially movable oil cylinder (47) and make first return mechanism (48) that axial pushing block (44) returns and make abrasive stick (6) break away from second return mechanism (49) of surface of the work to pushing block (44).
3. equipment for grinding surface of long shaft workpiece according to claim 2 is characterized in that: described oil cylinder (47) is fixed on the end plate (42), and its piston rod passes end plate (42) impeller-hub and moves axially to pushing block (44).
4. equipment for grinding surface of long shaft workpiece according to claim 2, it is characterized in that: described first return mechanism (48) comprises guide post (481), guide post (481) is fixed on the axial pushing block (44) and stretches out outside the end plate (42), and guide post (481) stretches out on end plate (42) part and is with stage clip (482).
5. equipment for grinding surface of long shaft workpiece according to claim 2, it is characterized in that: described second return mechanism (49) comprises the pin (491) that is arranged on the end plate (42), be connected with extension spring (492) on the pin (491), extension spring (492) other end and abrasive stick seat (43) are fixing.
6. equipment for grinding surface of long shaft workpiece according to claim 1 is characterized in that: described ring-shaped jacket (411) is provided with cooling fluid hole (8), and cooling fluid can enter into surface of the work by cooling fluid hole (8).
7. equipment for grinding surface of long shaft workpiece according to claim 1 is characterized in that: described lathe bed (1) is provided with the telescopic roller bracket (9) that is used for supporting workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101160717A CN101462244B (en) | 2009-01-13 | 2009-01-13 | Equipment for grinding surface of long shaft workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101160717A CN101462244B (en) | 2009-01-13 | 2009-01-13 | Equipment for grinding surface of long shaft workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101462244A CN101462244A (en) | 2009-06-24 |
| CN101462244B true CN101462244B (en) | 2011-10-05 |
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ID=40803160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101160717A Expired - Fee Related CN101462244B (en) | 2009-01-13 | 2009-01-13 | Equipment for grinding surface of long shaft workpiece |
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| Country | Link |
|---|---|
| CN (1) | CN101462244B (en) |
Cited By (1)
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| CN102729305A (en) * | 2012-07-22 | 2012-10-17 | 刘增武 | Device for treating surfaces of wooden-holder pencils |
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| CN102275100B (en) * | 2011-07-22 | 2013-08-21 | 常州机电职业技术学院 | Slender shaft processing equipment |
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| CN103659484A (en) * | 2014-01-14 | 2014-03-26 | 陕西飞机工业（集团）有限公司 | Generatrix grinding method for slender shaft parts |
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-
2009
- 2009-01-13 CN CN2009101160717A patent/CN101462244B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729305A (en) * | 2012-07-22 | 2012-10-17 | 刘增武 | Device for treating surfaces of wooden-holder pencils |
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| Publication number | Publication date |
|---|---|
| CN101462244A (en) | 2009-06-24 |
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Granted publication date: 20111005 Termination date: 20160113 |