CN212145676U - Machining device for polishing inner wall of nodular cast iron pipe - Google Patents
Machining device for polishing inner wall of nodular cast iron pipe Download PDFInfo
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- CN212145676U CN212145676U CN201920524691.3U CN201920524691U CN212145676U CN 212145676 U CN212145676 U CN 212145676U CN 201920524691 U CN201920524691 U CN 201920524691U CN 212145676 U CN212145676 U CN 212145676U
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Abstract
The utility model relates to a processing device for polishing the inner wall of a nodular cast iron pipe, which comprises a base and a grinding wheel, wherein a fixed table is fixedly arranged on one side of the base, a fixed rod is fixedly assembled on the fixed table, and the grinding wheel is arranged at the tail end of the fixed rod; the base opposite side installation is provided with the step-by-step workstation that can follow the reciprocal uniform velocity motion of dead lever axial, fixed driving motor and the pivot mount of being provided with on the step-by-step workstation, be equipped with the drive shaft coaxial with the dead lever on the pivot mount, the drive shaft is rotatory by driving motor drive, the fixed cover of output fixedly connected with work piece of drive shaft is used for fixed by the processing work piece. The utility model discloses can be fast, the efficient carries out polishing treatment to nodular cast iron pipe inner wall, and the machining precision is high moreover, and surface finish is high.
Description
Technical Field
The utility model relates to the technical field of machinery, concretely relates to processingequipment for special materials polishing.
Background
Ductile iron pipe is a kind of cast iron, and is an alloy of iron, carbon and silicon. The graphite in the nodular cast iron exists in a spherical form, the size of the general graphite is 6-7 grades, and the spheroidization grade of a casting pipe is controlled to be 1-3 grades (the spheroidization rate is more than or equal to 80%) in quality, so that the mechanical property of the material is better improved, and the nodular cast iron has the essence of iron, the performance of steel and better mechanical property.
The nodular cast iron pipe has the advantages of iron nature, steel performance, excellent corrosion resistance, good extensibility, good sealing effect and simple installation, and is mainly used for water supply, gas transmission, oil transmission and the like of municipal and industrial and mining enterprises. Is the first choice of the water supply pipe and has high cost performance. Compared with the PE pipe, the installation time of the nodular graphite pipe is shorter than that of the PE pipe, and the internal and external bearing pressure after installation is better; from the aspects of tightness and corrosion resistance, the installed nodular graphite pipe has better tightness, and the corrosion resistance can be improved by various corrosion resistance means; from the hydraulic performance, the specification of the nodular graphite pipe generally refers to the inner diameter, and the specification of the PE pipe generally refers to the outer diameter, and the nodular graphite pipe can realize larger runoff under the same specification condition. When the ductile cast iron pipe is used as a water supply pipe, the inner wall needs to be sprayed with anticorrosive materials such as zinc, cement mortar and the like. After the spraying, the inner wall of the tube needs to be polished to meet the use requirement.
Because the pipe diameter of the ductile cast iron pipe is generally large and the pipe body is also deep, the ductile cast iron pipe is difficult to process by conventional grinding equipment. The inner wall of the existing ductile cast iron pipe is generally polished manually or repeatedly by small-sized grinding equipment. Not only the construction period is consumed long, the efficiency is low, but also the working strength is larger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide a processingequipment for special material polishing, can be fast, the efficient carries out polishing treatment to the nodular cast iron pipe inner wall, and the machining precision is high moreover, and surface finish is high.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a processing device for polishing special materials comprises a base and a grinding wheel, wherein a fixed table is fixedly installed on one side edge of the base, a fixed rod is fixedly installed on the fixed table, and the grinding wheel is installed at the tail end of the fixed rod; the base opposite side installation is provided with the step-by-step workstation that can follow the reciprocal uniform velocity motion of dead lever axial, fixed driving motor and the pivot mount of being provided with on the step-by-step workstation, be equipped with the drive shaft coaxial with the dead lever on the pivot mount, the drive shaft is rotatory by driving motor drive, the fixed cover of output fixedly connected with work piece of drive shaft is used for fixed by the processing work piece.
The utility model has the advantages that: the rotary grinding mode of a grinding wheel of a traditional grinding device is changed into a fixed state of the grinding wheel, and a workpiece is rotated into a workpiece, so that the grinding device is not shaken when a nodular cast iron pipe with large aperture and long pipe body length is polished, and the machining precision is high; meanwhile, the problem that the nodular cast iron pipe with large aperture and long pipe body length is not processed by special polishing equipment is effectively solved, the processing efficiency is greatly improved, and energy conservation and consumption reduction can be effectively realized.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the working speed of the stepping workbench is 20-45 mm/s.
The beneficial effect of adopting the further scheme is that: the whole device can be stably operated, the feeding speed is kept better, vibration is reduced, the workpiece can be effectively ensured to have sufficient contact time with the grinding wheel, and the machining precision is improved.
Further, the thickness of the grinding wheel is 280-350 mm.
The beneficial effect of adopting the further scheme is that: the grinding wheel adopts a thicker size, can play a certain supporting role on a workpiece after the workpiece is fed, further reduces vibration and improves the processing precision.
Further, a plurality of sand bars are uniformly distributed on the grinding wheel, and 6-10 sand bars are preferably distributed.
The beneficial effect of adopting the further scheme is that: arrange many sand bars and can further improve the precision of processing, improve machining efficiency simultaneously.
Further, the length of sand strip is 80 ~ 200 mm.
The beneficial effect of adopting the further scheme is that: the machining precision can be further improved by adopting a smaller length of the sand bars, and the smoothness of the workpiece is improved.
Further, the diameter of the grinding wheel is 100-2200 mm.
The beneficial effect of adopting the further scheme is that: adopt comparatively wide range diameter, can adapt to the processing needs of the nodular cast-iron pipe of unidimensional not, the utility model discloses the biggest pipe diameter that can process is 2200 mm.
Furthermore, the working rotating speed of the driving motor is preferably 5-30 revolutions/min, and most preferably 8-15 revolutions/min.
The beneficial effect of adopting the further scheme is that: the lower speed is adopted for feeding, so that the vibration of the device can be effectively reduced on the premise of meeting the requirement of polishing processing, and the processing precision of the device is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a base, 2, a fixing table, 3, a fixing rod, 4, a grinding wheel, 5, a sand bar, 6, a stepping workbench, 7, a driving motor, 8, a rotating shaft fixing frame, 9, a driving shaft, 10, a workpiece fixing sleeve, 11 and a nodular cast iron pipe.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in figure 1, the utility model relates to a processingequipment for special material polishing, including base 1 and emery wheel 4, the diameter of emery wheel 4 is decided according to the internal diameter of the work piece of being processed, with it looks adaptation. A fixing table 2 is fixedly mounted on one side edge of the base 1, a fixing rod 3 is fixedly mounted on the fixing table 2, and a grinding wheel 4 is mounted at the tail end of the fixing rod 3. The utility model discloses a device grinds emery wheel 4 and is in the stationary state in the course of working. The other side of the base 1 is provided with a stepping workbench 6 capable of axially reciprocating along the fixed rod 3 at a uniform speed, the stepping workbench 6 is fixedly provided with a driving motor 7 and a rotating shaft fixing frame 8, and the rotating shaft fixing frame 8 is provided with a driving shaft 9 coaxial with the fixed rod 3. The driving shaft 9 is driven by the driving motor 7 to rotate, and the output end of the driving shaft 9 is fixedly connected with a workpiece fixing sleeve 10 for fixing a workpiece to be processed. The driving shaft 9 can be connected with the output shaft of the driving motor 7 through a transmission belt, and can also be connected with the output shaft of the driving motor 7 through a coupling.
The traditional grinding device adopts a grinding wheel 4 to rotate at a high speed, a workpiece does not rotate or rotates oppositely at a low speed to feed the workpiece, and the grinding wheel 4 finishes grinding the workpiece. Because the grinding wheel 4 rotates at a high speed and the device shakes under the action of gravity, the traditional grinding device is small in size and quite limited in applicable machining range in order to avoid shaking and ensure machining precision. For large-sized pipe fittings such as the ductile iron pipe 11, the conventional grinding equipment is generally difficult to machine. The utility model discloses the people finds after the long-term research of course of working and the processing demand to nodular cast-iron pipe 11, and the polishing of nodular cast-iron pipe 11 is very low in fact to grinding device's requirement. The anticorrosive coating on the inner wall of the ductile cast iron pipe 11 is generally made of zinc, cement mortar and other materials, and the materials are soft and easy to grind and polish, so that the grinding wheel 4 is not required to rotate at a high speed for processing. Utility model people discovers through experimental back, even adopt the low-speed rotation, the vibrations are equally great when the operation of large size emery wheel 4, and the machining precision is difficult to guarantee. The research of the utility model discloses people discovers that the transmission shaft is longer, causes the production of vibrations. After the utility model discloses the people improves the scheme repeatedly, final definite adoption emery wheel 4 is fixed motionless, and the mode processing of 11 rotatory advances of nodular cast iron pipe can effectively guarantee like this that emery wheel 4 can not take place vibrations, and the transmission shaft length of work piece end is shorter, consequently is difficult for taking place vibrations, operates steadily relatively.
The utility model discloses still provide modified technical scheme, in modified technical scheme, step by step workstation 6's operating speed is 20 ~ 45 mm/s.
Adopt above-mentioned a speed of advancing, can make whole device steady operation, keep better a speed of advancing, when reducing vibrations, can also effectively ensure that the work piece has abundant contact time with the emery wheel, improves the machining precision.
The utility model discloses still provide another kind of modified technical scheme, in modified technical scheme, the thickness of emery wheel 4 is 280 ~ 350 mm.
The grinding wheel adopts a thicker size, can play a certain supporting role on a workpiece after the workpiece is fed, further reduces vibration and improves the processing precision.
The utility model discloses still provide another kind of modified technical scheme, in modified technical scheme, can evenly lay many emery sticks 5 on the emery wheel 4, preferably lay 6 ~ 10 emery sticks 5.
Arranging a plurality of sand bars 5 can further improve the processing precision and simultaneously improve the processing efficiency.
The utility model discloses still provide another kind of modified technical scheme, in modified technical scheme, the length of emery stick 5 is 80 ~ 200 mm.
The machining precision can be further improved by adopting the smaller length of the sand bars 5, and the smoothness of the workpiece is improved.
The utility model discloses still provide another kind of modified technical scheme, in modified technical scheme, the diameter of emery wheel 4 is 100 ~ 2200 mm.
The method has a wider diameter range, and can meet the processing requirements of nodular cast iron pipes 11 with different sizes. However, the excessive size causes the grinding wheel 4 to be excessively heavy and the fixing rod 3 to be unable to bear its weight and to be bent. Through the utility model discloses people are calculated and are experimented, the utility model discloses the biggest pipe diameter that technical scheme can process is 2200 mm.
The utility model discloses still provide another kind of modified technical scheme, in modified technical scheme, driving motor 7's operating speed is preferred 5 ~ 30 revolutions/min, most preferred 8 ~ 15 revolutions/min.
Utility model people adopt lower rotational speed to advance the piece through the research to nodular cast-iron pipe 11's course of working and processing demand, can satisfy the needs of polishing processing completely. Meanwhile, the vibration of the device can be effectively reduced, and the machining precision of the device is guaranteed. But the selection of the rotation speed has a great influence on the machining accuracy. The polishing finish degree cannot meet the requirement due to too low rotating speed, and the vibration is generated when the ductile iron pipe 11 enters a workpiece due to too high speed, so that the machining precision is influenced. The utility model discloses the people is confirmed after research and experiment, and 5 ~ 30 revolutions/min's rotational speed can satisfy the needs of polishing processing. The optimal rotating speed range is 8-15 r/min.
The working process of the utility model is as follows:
when the device works, firstly, the grinding wheel 4 with the corresponding diameter is selected according to the size of the nodular cast iron pipe 11 to be processed, and the grinding wheel 4 is fixedly arranged on the fixed rod 3. Then, the nodular cast iron pipe 11 to be polished is fixed on the workpiece fixing sleeve 10. Finally, starting the device, wherein the driving motor 7 drives the driving shaft 9 to rotate, so that the nodular cast iron pipe 11 is driven to rotate at a low speed of 8-15 revolutions/min; meanwhile, the stepping workbench 6 moves to the grinding wheel 4 at a constant speed of 20-45 mm/s until the grinding wheel 4 contacts the tail end of the nodular cast iron pipe 11, and then the stepping workbench 6 moves at a constant speed in a reversing manner of 20-45 mm/s until the grinding wheel 4 is separated from the nodular cast iron pipe 11, so that a one-time reciprocating grinding processing process is completed. Through experiments, the polishing treatment of one nodular cast iron pipe 11 can be completed generally by reciprocating for 6-10 times, and the processing efficiency is extremely high.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a processingequipment for nodular cast-iron pipe inner wall polishing, includes base (1) and dull polish wheel (4), its characterized in that: a fixing table (2) is fixedly installed on one side edge of the base (1), a fixing rod (3) is fixedly assembled on the fixing table (2), and the grinding wheel (4) is installed at the tail end of the fixing rod (3); base (1) opposite side installation is provided with can follow dead lever (3) axial reciprocating uniform velocity movement's step-by-step workstation (6), step-by-step workstation (6) are gone up the fixed driving motor (7) and are provided with pivot mount (8), are equipped with on pivot mount (8) with dead lever (3) coaxial drive shaft (9), and drive shaft (9) are rotatory by driving motor (7) drive, the fixed cover of output fixedly connected with work piece (10) of drive shaft (9) are used for the fixed work piece of being processed.
2. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 1, wherein: the working speed of the stepping workbench (6) is 20-45 mm/s.
3. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 1, wherein: the thickness of the grinding wheel (4) is 280-350 mm.
4. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 1, wherein: and a plurality of sand bars (5) are uniformly distributed on the grinding wheel (4).
5. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 4, wherein: 6-10 sand bars (5) are uniformly distributed on the grinding wheel (4).
6. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 4, wherein: the length of the sand strip (5) is 80-200 mm.
7. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 1, wherein: the diameter of the grinding wheel (4) is 100-2200 mm.
8. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in any one of claims 1 to 7, wherein: the working rotating speed of the driving motor (7) is 5-30 revolutions per minute.
9. The machining device for polishing the inner wall of the nodular cast iron pipe as claimed in claim 8, wherein: the working rotating speed of the driving motor (7) is 8-15 revolutions per minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920524691.3U CN212145676U (en) | 2019-04-17 | 2019-04-17 | Machining device for polishing inner wall of nodular cast iron pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920524691.3U CN212145676U (en) | 2019-04-17 | 2019-04-17 | Machining device for polishing inner wall of nodular cast iron pipe |
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| CN212145676U true CN212145676U (en) | 2020-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103088A (en) * | 2019-04-17 | 2019-08-09 | 黄石市高潮工矿机械有限公司 | For polishing the processing unit (plant) of special material |
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- 2019-04-17 CN CN201920524691.3U patent/CN212145676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103088A (en) * | 2019-04-17 | 2019-08-09 | 黄石市高潮工矿机械有限公司 | For polishing the processing unit (plant) of special material |
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