CN110722469A - Large thickness-diameter ratio grinding tool forming pressure gradient measuring device - Google Patents
Large thickness-diameter ratio grinding tool forming pressure gradient measuring device Download PDFInfo
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- CN110722469A CN110722469A CN201911163899.8A CN201911163899A CN110722469A CN 110722469 A CN110722469 A CN 110722469A CN 201911163899 A CN201911163899 A CN 201911163899A CN 110722469 A CN110722469 A CN 110722469A
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- pressure
- base
- sleeve
- grinding tool
- diameter ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
Abstract
The invention discloses a large-thickness-to-diameter ratio grinding tool forming pressure gradient measuring device which comprises an upper pressure head and a sleeve, wherein the upper end and the lower end of the sleeve are both open, the upper pressure head is connected with the inner wall of the sleeve in a sliding manner when the upper pressure head is positioned in the sleeve, a base is arranged in the bottom end of the sleeve, the bottom of the base is aligned with the end part of the sleeve, a plurality of pressure sensing mechanisms are arranged on the base in the circumferential direction, each pressure sensing mechanism comprises a supporting rod arranged on the base, pressure sensors are arranged at the tops of the supporting rods, and the heights of the supporting rods are different, namely the depths; through the arrangement of different measurement depth pressure sensors on the base, each pressure sensor transmits the pressure change data detected in real time to the processing end, so that the pressure distribution conditions of different internal different depths and a certain circumferential direction are drawn, and data support is provided for the forming pressure control and grinding tool performance improvement of the grinding tool with the large thickness-diameter ratio of the mixture.
Description
Technical Field
The invention belongs to the field of grinding wheel manufacturing and process control, and particularly relates to a large-thickness-diameter-ratio grinding tool forming pressure gradient measuring device.
Background
With the rapid development of manufacturing technology in China, grinding is used as an important means of precision machining, and the machining efficiency and the machining quality of the grinding are more and more important. The grinding tool with the large thickness-diameter ratio has the advantages of high processing efficiency, good processing quality and easy mass production, and is widely applied to the field of processing industrial basic components such as rolling bearings, rails, steel, rollers and the like. Such as centerless grinding wheel, steel rail grinding wheel, heavy load grinding wheel and roller grinding wheel, belong to large thickness-diameter ratio grinding tools.
The press forming process is a key process for manufacturing the grinding tool with the large thickness-diameter ratio, and pressure parameters are important indexes for ensuring that the density of the grinding tool is uniform, the size and the shape of the grinding tool meet design requirements and reducing the internal cracks, the layer formation and the particle loosening degree of the grinding tool when the grinding tool with the large thickness-diameter ratio is subjected to press forming, and are also key factors influencing the stability of the grinding performance of the grinding tool in the axial depth direction and the circumferential direction. At present, in the actual production process, most enterprises adopt a method of layering and pressing the grinding tool with a large thickness-diameter ratio for multiple times, so that the difference of the internal pressure distribution of the grinding tool can be reduced to a certain extent, but corresponding measuring means for the axial gradient change and the circumferential pressure distribution of the internal pressure of the grinding tool in the pressing forming process are lacked. In addition, the press for producing the grinding tool in the market can only monitor the pressure on the upper surface of the grinding tool, and has no corresponding measuring device for the pressure gradient change and the axial pressure distribution in the grinding tool. Therefore, the development of the device for testing the forming pressure gradient of the grinding tool with the large thickness-diameter ratio has important significance for monitoring the forming pressure distribution in the grinding tool.
Disclosure of Invention
The invention aims to provide a device for measuring the forming pressure gradient of a large-thickness-to-diameter-ratio grinding tool, which solves the problems of measuring the gradient change of the axial pressure and the circumferential pressure distribution in the grinding tool during the press forming process of the large-thickness-to-diameter-ratio grinding tool and provides data support for the forming pressure control and the performance improvement of the grinding tool of the large-thickness-to-diameter-ratio grinding tool; the technical scheme adopted for achieving the purpose is as follows:
the utility model provides a big thickness-diameter ratio grinding apparatus shaping pressure gradient measuring device, is open sleeve including last pressure head and upper and lower both ends, goes up pressure head and sleeve inner wall sliding connection when going up the pressure head and being located the sleeve, is equipped with the base in the sleeve bottom, the base bottom aligns with the sleeve tip, installs a plurality of pressure sensing mechanisms around circumference on the base, pressure sensing mechanism is including installing the bracing piece on the base, installs pressure sensor at the bracing piece top, and the highly different that every bracing piece is the measuring point degree of depth that every pressure sensor is located is different.
Preferably, the pressure sensor transmits real-time detection data to the control end in a wireless transmission mode.
Preferably, be equipped with the passageway in the bracing piece or be equipped with the strip line groove on the bracing piece surface, pressure sensor's connecting wire is located passageway or strip line inslot and stretches out from the bracing piece bottom, corresponds every passageway or strip line groove on the base side and all is equipped with the U type breach that is used for placing the connecting wire, U type breach and passageway or strip line groove are linked together.
Preferably, when a channel is arranged in the supporting rod, connecting through holes are arranged on the base at positions corresponding to the mounting positions of the supporting rod, step holes are coaxially arranged at the bottoms of the connecting through holes, and the inner diameter of each step hole is larger than that of each connecting through hole;
the hollow threaded rod is coaxially arranged at the bottom of the supporting rod, the inner diameter of the connecting through hole is larger than the outer diameter of the hollow threaded rod and smaller than the outer diameter of the supporting rod, and the hollow threaded rod is provided with a locking nut which is positioned in the step hole.
Preferably, the base center is provided with an isolation column, and the upper pressure head is provided with a through hole for penetrating through the isolation column.
The invention has the following beneficial effects: through the arrangement of different measurement depth pressure sensors on the base, each pressure sensor transmits the pressure change data detected in real time to the processing end, so that the pressure distribution conditions of different internal different depths and a certain circumferential direction are drawn, data support is provided for the forming pressure control and grinding tool performance promotion of the large-thickness-diameter-ratio grinding tool for the mixture, the press forming process of the large-thickness-diameter-ratio grinding tool is guided, and the grinding performance stability of different axial depths and circumferential positions of the large-thickness-diameter-ratio grinding tool is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic perspective view of the base.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a pressure gradient measuring device for forming a large thickness-diameter ratio grinding tool comprises an upper pressure head 3 and a sleeve 1 with both upper and lower ends open, wherein the upper pressure head 3 is slidably connected with the inner wall of the sleeve 1 when the upper pressure head 3 is positioned in the sleeve 1, a base 12 is arranged in the bottom end of the sleeve 1, the bottom of the base 12 is aligned with the end of the sleeve 1, a plurality of pressure sensing mechanisms are arranged on the base 12 in the circumferential direction, each pressure sensing mechanism comprises a support rod 16 arranged on the base 12, a pressure sensor 5 is arranged at the top of the support rod 16, and the height of each support rod 16 is different, i.e. the depth of a measuring point where each pressure sensor 5 is positioned is different, such as the depths H1, H2, H3, H4 and Hi.
The pressure sensor 5 can transmit real-time detection data to the control end in a wireless transmission mode; data line transmission may also be used. When adopting wired transmission, be equipped with passageway 13 in bracing piece 6 or be equipped with the strip line groove on the bracing piece 6 surface, pressure sensor 5's connecting wire 9 is located passageway 13 or strip line inslot and stretches out from bracing piece 6 bottom, corresponds every passageway 11 or strip line groove on base 12 side and all is equipped with the U type breach that is used for placing connecting wire 9, U type breach and passageway 11 or strip line groove are linked together.
The preferred mounting for the pressure sensing mechanism is: when the support rod 6 is internally provided with the channel 13, the base 12 is provided with a connecting through hole 11 at the position corresponding to the installation position of the support rod 6, the bottom of the connecting through hole 11 is coaxially provided with a step hole 10, and the inner diameter of the step hole 10 is larger than that of the connecting through hole 11;
the hollow threaded rod 7 is coaxially arranged at the bottom of the supporting rod 6, the inner diameter of the connecting through hole 11 is larger than the outer diameter of the hollow threaded rod 7 and smaller than the outer diameter of the supporting rod 6, the hollow threaded rod 7 is provided with a locking nut 8, and the locking nut 8 is positioned in the stepped hole 10.
As shown in fig. 2, another arrangement of connecting wires, i.e. data wires and power wires, may also be adopted, an annular wire slot 15 for communicating the stepped holes 10 is provided at the bottom of the base 12, and a U-shaped notch 14 communicated with the annular wire slot 15 is provided on the side surface of the base 12, so that the connecting wire 9 of each pressure sensor 5 may be arranged in the annular wire slot 15 and the U-shaped notch 14 and extend out of the base 12.
Aiming at the grinding wheel test with the core and the large thickness-diameter ratio, the center of the base 12 can be further provided with an isolation column 4, and meanwhile, the upper pressure head 3 is provided with a through hole for penetrating through the isolation column 4.
When the invention is used, firstly, a plurality of pressure sensing mechanisms are correspondingly arranged on a base 12, supporting rods 16 with different heights can be arranged according to actual requirements to realize different depths of measuring points of each pressure sensor 5 in the axial direction, namely the depths are H1, H2, H3, H4 and Hi, then the sleeve 1 is fixed as shown in figure 1, required amount of mixture is added into the sleeve 1, then the whole is placed on a working platform of a press, an upper pressure head 3 is arranged on a pressure rod of the press, the pressure rod drives the upper pressure head 3 to compress the mixture downwards, the mixture stops being pressed downwards after the required pressure Fn is applied, in the process, each pressure sensor 5 transmits pressure change data detected in real time to a processing end, so that pressure distribution conditions of different internal depths and a certain circumferential direction of a grinding tool are drawn, and data support is provided for the forming pressure control and grinding tool performance improvement of the mixture, the method guides the press forming process of the large thickness-diameter ratio grinding tool, and improves the stability of the grinding performance of the large thickness-diameter ratio grinding tool at different axial depths and circumferential positions.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a big thickness-to-diameter ratio grinding apparatus shaping pressure gradient measuring device, its characterized in that is open sleeve including last pressure head and upper and lower both ends, goes up pressure head and sleeve inner wall sliding connection when going up the pressure head and being located the sleeve, is equipped with the base in the sleeve bottom, the base bottom aligns with sleeve tip, installs a plurality of pressure sensing mechanisms around circumference on the base, pressure sensing mechanism is including installing the bracing piece on the base, installs pressure sensor at the bracing piece top, and the highly different of every bracing piece is the measuring point degree of depth that every pressure sensor is located different promptly.
2. The grinding tool forming pressure gradient measuring device with the large thickness-to-diameter ratio as claimed in claim 1, wherein the pressure sensor transmits real-time detection data to the control end in a wireless transmission mode.
3. The grinding tool forming pressure gradient measuring device with large thickness-diameter ratio as claimed in claim 1, wherein a channel is provided in the supporting rod or a strip line groove is provided on the surface of the supporting rod, the connecting wire of the pressure sensor is located in the channel or the strip line groove and extends out from the bottom end of the supporting rod, a U-shaped notch for placing the connecting wire is provided on the side surface of the base corresponding to each channel or strip line groove, and the U-shaped notch is communicated with the channel or strip line groove.
4. The pressure gradient measuring device for the forming of the grinding tool with the large thickness-diameter ratio according to claim 3, wherein when the supporting rod is provided with the channel, the base is provided with a connecting through hole corresponding to the mounting position of the supporting rod, and the bottom of the connecting through hole is coaxially provided with a step hole, and the inner diameter of the step hole is larger than that of the connecting through hole;
the hollow threaded rod is coaxially arranged at the bottom of the supporting rod, the inner diameter of the connecting through hole is larger than the outer diameter of the hollow threaded rod and smaller than the outer diameter of the supporting rod, and the hollow threaded rod is provided with a locking nut which is positioned in the step hole.
5. The apparatus for measuring pressure gradient of grinding tool forming with large thickness-diameter ratio as claimed in claim 1, wherein an isolation column is provided at the center of the base, and a through hole for passing through the isolation column is provided on the upper pressing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163899.8A CN110722469B (en) | 2019-11-25 | 2019-11-25 | Large thickness-diameter ratio grinding tool forming pressure gradient measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911163899.8A CN110722469B (en) | 2019-11-25 | 2019-11-25 | Large thickness-diameter ratio grinding tool forming pressure gradient measuring device |
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| CN110722469A true CN110722469A (en) | 2020-01-24 |
| CN110722469B CN110722469B (en) | 2020-06-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU743850A1 (en) * | 1978-04-10 | 1980-06-30 | Предприятие П/Я Р-6707 | Apparatus for one-side lapping of planar surfaces of parts |
| CN101769149A (en) * | 2009-11-16 | 2010-07-07 | 大庆油田有限责任公司 | CO2 injection profile well logging method |
| KR20100103933A (en) * | 2009-03-16 | 2010-09-29 | 주식회사 삼정그린테크 | Grinder bed for flat members |
| CN203831264U (en) * | 2014-05-19 | 2014-09-17 | 郑州磨料磨具磨削研究所有限公司 | Die special for manufacturing of ceramic cubic boron nitride abrasive wheel for grinding oil nozzle middle-hole base face |
| CN204108864U (en) * | 2014-07-29 | 2015-01-21 | 郑州磨料磨具磨削研究所有限公司 | A kind of press-moulding die of emery wheel joint block |
| CN105952446A (en) * | 2016-04-26 | 2016-09-21 | 中国海洋石油总公司 | Measurement method for component content of petroleum and natural gas reservoir |
-
2019
- 2019-11-25 CN CN201911163899.8A patent/CN110722469B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU743850A1 (en) * | 1978-04-10 | 1980-06-30 | Предприятие П/Я Р-6707 | Apparatus for one-side lapping of planar surfaces of parts |
| KR20100103933A (en) * | 2009-03-16 | 2010-09-29 | 주식회사 삼정그린테크 | Grinder bed for flat members |
| CN101769149A (en) * | 2009-11-16 | 2010-07-07 | 大庆油田有限责任公司 | CO2 injection profile well logging method |
| CN203831264U (en) * | 2014-05-19 | 2014-09-17 | 郑州磨料磨具磨削研究所有限公司 | Die special for manufacturing of ceramic cubic boron nitride abrasive wheel for grinding oil nozzle middle-hole base face |
| CN204108864U (en) * | 2014-07-29 | 2015-01-21 | 郑州磨料磨具磨削研究所有限公司 | A kind of press-moulding die of emery wheel joint block |
| CN105952446A (en) * | 2016-04-26 | 2016-09-21 | 中国海洋石油总公司 | Measurement method for component content of petroleum and natural gas reservoir |
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| CN110722469B (en) | 2020-06-30 |
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