CN202780727U - Dedicated blade adjusting device for rod centerless grinding process - Google Patents
Dedicated blade adjusting device for rod centerless grinding process Download PDFInfo
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- CN202780727U CN202780727U CN 201220417425 CN201220417425U CN202780727U CN 202780727 U CN202780727 U CN 202780727U CN 201220417425 CN201220417425 CN 201220417425 CN 201220417425 U CN201220417425 U CN 201220417425U CN 202780727 U CN202780727 U CN 202780727U
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- rod
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Abstract
The utility model provides a dedicated blade adjusting device for a rod centerless grinding process. The adjusting device is characterized by comprising a base (1); a knife rest (2) is arranged on the base (1); a cutting board (3) is tightly close to the knife rest (2); the cutting board (3) is tightly pressed by a pressing plate (4) so as to adhere to the side of the knife rest (2); the pressing plate (4) is inserted into the base (1); and an adjusting round backer rod (5) is arranged on the base (1) below the cutting board (3). The adjusting device provided by the utility model can be used for effectively eliminating or reducing the original roundness error of the blank, controlling the roundness error of the workpiece finished product, improving the product percent of pass, and saving production cost; and moreover, the overall process flow is simple and easy to beily operated, and the dedicated cutting board adjusting device is simple in structure and convenient in debugging and maintenance.
Description
Technical field
The utility model belongs to the Machining Technology field, the special-purpose knife plate adjusting device of the grinding process of the concentricity when specifically just relating to significantly to improve bar centerless grinding.
Background technology
Grinding is the cutting technology that utilizes the finishing surface of the works such as emery wheel of High Rotation Speed.Grinding is used for processing inside and outside circle cylinder, taper seat and the plane of various workpiece, and special, the complicated profiled surfaces such as screw thread, gear and spline.And centerless grinding is when referring to grinding, and workpiece need not top centering and supporting, but is placed between emery wheel and the guide wheel, by the pallet supporting of its below, and by the guide wheel driven rotary.Centerless grinding is as a kind of large-duty precision machining method, and the parts such as bearing, automobile, war industry's industry all adopt centerless grinding as far as possible, and centerless grinding is divided into cylindrical centerless type grinding and supporting type centerless grinding.Cylindrical centerless type grinding is a kind of high efficiency the most frequently used in the machining, high-quality method for grinding.Its critical piece has emery wheel, guide wheel, knife plate etc.The Main Function of emery wheel is grinding work piece, and the Main Function of guide wheel is the motion of guiding and control workpiece, and knife plate is used for holding workpieces, and knife plate makes up with guide wheel, can position workpiece.Workpiece is under the acting in conjunction of emery wheel, guide wheel and knife plate, and workpiece is around the rotation of self axis, moves forward (as shown in Figure 1) along self axis simultaneously.Workpiece centre does not have the fixed position in the grinding.The finished surface of workpiece namely is locating surface, and still, workpiece because running up of grinding tool can cause vibration of workpiece that the eccentric error (as shown in Figure 2) that produces occurs, causes the excircle of workpiece axiality relatively poor in being ground process, affects the machining accuracy of workpiece.
Chinese patent CN1031039A discloses a kind of coreless grinding technology, and principal character is the accurate balance trimming wheel, grasps the height of workpiece, adjusts guide plate, can obtain good ground effect with after grinding allowance is controlled in the grinding process.But this patent just simply discloses the technical scheme that a kind of workpiece grinding control grinding allowance increases grinding accuracy, does not provide the universal method that is fit to all similar workpiece grindings.
The utility model content
The purpose of this utility model is to carry out in the centerless grinding process for existing bar, because periphery can cause periphery can't guarantee the shortcoming of axiality along with the grinding tool vibrations, a kind of bar coreless grinding technology and special-purpose knife plate adjusting device thereof are provided, can be according to the bar of various different models, the adjustment various parameters of grinding tool of handing over, thus make bar periphery to be handed over reach the optimal process precision.
Technical scheme
In order to realize above-mentioned technical purpose, design a kind of bar coreless grinding technology, it comprises following step: at first bar is carried out roughing, make the workpiece surplus between 0.3～0.5mm, deviation from circular from is below 0.10mm, and linearity is in 1mm/m; Then to the guide wheel education, guide wheel speed is transferred to the fastest, open hydraulic system and guide wheel; Then regulate the knife plate device, the distance that makes workpiece centre and emery wheel, the guide wheel line of centres is 1～3mm; Start at last emery wheel and carry out grinding, grinding parameter is:
Adopt the MS1080 centerless grinder,
Emery wheel material is brown corundum, granularity 60 orders,
The guide wheel material is rubber, its granularity 120 orders;
Grinding wheel speed: 1300(r/min);
The guide wheel corner:
The semi-finished product passage is 2～3 degree,
Final pass is 1.5～2 degree;
The workpiece pace:
V
Half=30～35mm/s
V
Become=25～30mm/s
Stock removal:
t
Half=0.15～0.20mm
t
Become=0.05～0.10mm
V
HalfWorkpiece pace during-mill semi-finished product, V
Become-workpiece pace when wearing into product,
t
HalfPer pass stock removal during-mill semi-finished product, t
Become-per pass stock removal when wearing into product.
Further, described the 4th step passes into cooling fluid when carrying out grinding, and the cooling fluid concentration value is 3.5～5.
Further, find in described the 4th step grinding process will again revise guide wheel when the discontinuous or surface of the work of spark has the ring seal.
Further, the 4th the step wear into product before, tumbling is once.
The utility model is provided for the special-purpose knife plate adjusting device of above-mentioned bar coreless grinding technology, it is characterized in that: it comprises base, knife rest is contained on the base, knife plate is near knife rest, knife plate is attached on the knife rest side by pressing plate, in pressing plate 4 inserted bases, be equipped with on the base of below, knife plate bottom and regulate the planchet rod, described adjusting planchet rod diameter is between 3～12mm.
Beneficial effect
The utility model material reduction cuts technique and the original deviation from circular from of blank can effectively be eliminated or reduce to special-purpose knife plate adjusting device, the deviation from circular from of control workpiece finished product, improve product percent of pass, saved production cost, whole technological process process is simple to operation, special-purpose knife plate adjusting device is simple in structure, debugs easy to maintenance.
Description of drawings
Accompanying drawing 1 is that schematic diagram is moved in existing workpiece grinding.
Accompanying drawing 2 is that schematic diagram is moved in existing workpiece grinding.
Accompanying drawing 3 is the utility model knife plate adjustment device work view.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
A kind of bar coreless grinding technology, it comprises following step: at first bar is carried out roughing, make the workpiece surplus between 0.3～0.5mm, deviation from circular from is below 0.10mm, and linearity is in 1mm/m.
Then to the guide wheel education, guide wheel speed is transferred to the fastest, open hydraulic system and guide wheel; To repair guide wheel before the processing, guide wheel speed is transferred to the fastest, unlatching hydraulic system and guide wheel.When revising guide wheel spark bit by bit to downward modulation, be transferred to spark and guide wheel just touches.Revise guide wheel according to the scale on the corrector again, once regulate 5 little lattice downwards, can when the back essence is beaten, want slow hurry up when erection rate begins, just can when nothing is uneven when guide pulley surface all is adapted to.
Then regulate the knife plate device, the distance that makes workpiece centre and emery wheel, the guide wheel line of centres is 1～3mm;
Start at last emery wheel and carry out grinding, grinding parameter is:
Adopt the MS1080 centerless grinder, emery wheel material is brown corundum, and granularity 60 orders, guide wheel material are rubber, its granularity 120 orders;
Grinding wheel speed: 1300(r/min;
The guide wheel corner:
The semi-finished product passage is 2～3 degree,
Final pass is 1.5～2 degree;
The workpiece pace:
V
Half=30～35mm/s
V
Become=25～30mm/s
Stock removal:
t
Half=0.15～0.20mm
t
Become=0.05～0.10mm
V
HalfWorkpiece pace during-mill semi-finished product, V
Become-workpiece pace when wearing into product,
t
HalfPer pass stock removal during-mill semi-finished product, t
Become-per pass stock removal when wearing into product.
During grinding, described the 4th step passes into cooling fluid when carrying out grinding, and the cooling fluid concentration value is 3.5～5;
When finding in described the 4th step grinding process that the discontinuous or surface of the work of spark has the ring seal, to again revise guide wheel, wear into product before, tumbling is once.
As shown in Figure 3, special-purpose knife plate adjusting device in above-mentioned bar coreless grinding technology, it comprises base 1, knife rest 2 is contained on the base 1, knife plate 3 is near knife rest 2, and knife plate 3 is attached on knife rest 2 sides by pressing plate 4, in pressing plate 4 inserted bases 1, be equipped with on the base 1 of below, knife plate 3 bottoms and regulate planchet rod 5, described adjusting planchet rod 5 diameters are between 3～12mm.Place to regulate planchet rod 5 according to the workpiece height and can guarantee that the distance of workpiece centre and emery wheel, the guide wheel line of centres is to reach the most effective ground effect between 1～3mm.
After step when the utility model carries out centerless grinding to bar and technological parameter limited, the workpiece quality that the bar grinding obtains was greatly improved, and the axiality of workpiece is guaranteed that effectively product percent of pass improves, Decrease production cost.
Claims (2)
1. the special-purpose knife plate adjusting device of a bar coreless grinding technology, it is characterized in that: it comprises base (1), knife rest (2) is contained on the base (1), knife plate (3) is near knife rest (2), knife plate (3) is attached on knife rest (2) side by pressing plate (4), in pressing plate (4) inserted base (1), be equipped with on knife plate (3) the bottom below base (1) and regulate planchet rod (5).
2. the special-purpose knife plate adjusting device of a kind of bar coreless grinding technology as claimed in claim 1 is characterized in that: described adjusting planchet rod (5) diameter is between 3～12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417425 CN202780727U (en) | 2012-08-21 | 2012-08-21 | Dedicated blade adjusting device for rod centerless grinding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417425 CN202780727U (en) | 2012-08-21 | 2012-08-21 | Dedicated blade adjusting device for rod centerless grinding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202780727U true CN202780727U (en) | 2013-03-13 |
Family
ID=47808065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220417425 Expired - Fee Related CN202780727U (en) | 2012-08-21 | 2012-08-21 | Dedicated blade adjusting device for rod centerless grinding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202780727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773776A (en) * | 2012-08-21 | 2012-11-14 | 宝钢发展有限公司 | Bar centerless grinding technology and special knife board adjusting device thereof |
-
2012
- 2012-08-21 CN CN 201220417425 patent/CN202780727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773776A (en) * | 2012-08-21 | 2012-11-14 | 宝钢发展有限公司 | Bar centerless grinding technology and special knife board adjusting device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170821 |