CN113910056A - Transmission device for grinding piston rod of marine diesel engine - Google Patents
Transmission device for grinding piston rod of marine diesel engine Download PDFInfo
- Publication number
- CN113910056A CN113910056A CN202111286231.XA CN202111286231A CN113910056A CN 113910056 A CN113910056 A CN 113910056A CN 202111286231 A CN202111286231 A CN 202111286231A CN 113910056 A CN113910056 A CN 113910056A
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- piston rod
- flat end
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- round end
- flat
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 48
- 238000003754 machining Methods 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model provides a transmission for marine diesel piston rod abrasive machining, fixed connection in the both ends of piston rod and install between two top in the front and back of grinding machine, the piston rod includes round end, flat end and centre bore, and this flat end is equipped with flange hole, its characterized in that: the transmission device comprises a round end transmission assembly and a flat end transmission assembly, the round end transmission assembly is fixedly connected to the round end of the piston rod and connected with one tip of the grinding machine, the flat end transmission assembly is fixedly connected to the flat end of the piston rod and connected with the other tip of the grinding machine, and the transmission device positions and clamps the piston rod on the grinding machine in a double-tip mode to achieve grinding processing of the piston rod. The double-thimble piston rod clamping and positioning device has the advantages that the double-thimble piston rod clamping and positioning device is used for clamping and positioning the piston rod, the precision of multiple times of getting on the vehicle is guaranteed, the effects of improving the machining precision and the product quality are achieved, the labor intensity is effectively reduced, the operation efficiency is improved, and the double-thimble piston rod clamping and positioning device is simple and convenient to operate and simple in structure.
Description
Technical Field
The invention relates to machining of a piston rod of a diesel engine, in particular to a transmission device for grinding the piston rod of the marine diesel engine, and belongs to the technical field of machining.
Background
The piston rod is one of important moving parts of the high-power low-speed marine diesel engine, is of a revolving body structure, is large in diameter and long in length, comprises a round end and a flat end, and is high in precision requirement because the part to be machined of the piston rod is an excircle and a step surface. When an existing piston rod is ground on a machine tool, an operator clamps one end of the piston rod by using a four-jaw chuck and rotates the piston rod to perform excircle machining. The outer diameter of the four-jaw chuck body is 1.6 meters, the piston rod needs to correct the outer circle jump when getting on the vehicle every time, but an operator cannot rotate the piston rod and clamp the jaws at the upper part of the four-jaw chuck at the same time, but firstly rotates the four-jaw chuck to enable the jaws at the upper part to reach the operation position on the side surface, and then clamps the jaws. When the four-jaw chuck is rotated by inching operation, the four-jaw chuck is easily turned over, so that the piston rod falls off, and the quality or the safety accident of equipment is caused, and therefore the key point for improving the operation efficiency and the machining quality of the piston rod is realized by adopting a proper transmission tool.
Disclosure of Invention
The invention aims to solve the problems of low working efficiency and painful operation of an operator in the prior art, and provides a transmission device for grinding a piston rod of a marine diesel engine, which is convenient to operate, ensures the clamping precision, and achieves the effects of improving the working efficiency and ensuring the product processing quality.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a transmission for marine diesel piston rod abrasive machining, fixed connection in the both ends of piston rod and install between two top in the front and back of grinding machine, the piston rod includes round end, flat end and centre bore, and this flat end is equipped with flange hole, its characterized in that: the transmission device comprises a round end transmission assembly and a flat end transmission assembly, the round end transmission assembly is fixedly connected to the round end of the piston rod and connected with one tip of the grinding machine, the flat end transmission assembly is fixedly connected to the flat end of the piston rod and connected with the other tip of the grinding machine, and the transmission device positions and clamps the piston rod on the grinding machine in a double-tip mode to achieve grinding processing of the piston rod.
Furthermore, the round end transmission assembly comprises a round end adjusting block and an adjusting screw; the round end adjusting block is a disc-shaped component, a round end tip hole is arranged in the center of the outer end surface, a round end round table is arranged in the center of the inner end surface, the periphery of the round end round platform is a round end annular groove, the periphery of the round end adjusting block is provided with round end adjusting screw holes which are uniformly distributed on the circumference, the round end adjusting screw hole penetrates through the outer wall along the radial direction to be communicated with the round end annular groove, the round end adjusting block is connected to the end surface of the round end of the piston rod, the round end round platform extends into the central hole of the round end, the round end of the piston rod is accommodated in the round end annular groove of the round end adjusting block, the adjusting screw is tightly pressed against the periphery of the round end of the piston rod through the round end adjusting screw hole, and positioning and clamping the round end adjusting block, and centering a round end tip hole of the round end adjusting block and a center hole of the piston rod by rotating the adjusting screw.
Furthermore, the round end transmission assembly further comprises a round end positioning sleeve, and the round end positioning sleeve is sleeved on the round end circular table of the round end adjusting block and clamped between the periphery of the round end circular table and the hole wall of the central hole of the piston rod.
Furthermore, the flat end transmission assembly comprises a flat end positioning shaft, a centering shaft, a flat end adjusting block and an adjusting screw; the flat end positioning shaft is fixedly connected to the end face of the flat end of the piston rod through a connecting bolt, the flat end positioning shaft comprises an inner side connecting part and an outer side shaft part, and a central stepped hole penetrating the inner part is formed in the center of the flat end positioning shaft; the centering shaft is a stepped shaft, the large end of the centering shaft extends into the central hole of the flat end of the piston rod, and the small end of the centering shaft extends into the central stepped hole at the inner side of the flat end positioning shaft, so that the flat end positioning shaft is centered; the flat end adjusting block is connected to the outer end face of the shaft portion of the flat end positioning shaft, the flat end adjusting block is a disc-shaped component, a flat end tip hole is formed in the center of the outer end face, radial flat end adjusting screw holes are formed in the periphery of the outer end face, the circumference of the flat end adjusting screw holes are uniformly distributed, the adjusting screw penetrates through the flat end adjusting screw holes to tightly push against the periphery of the shaft portion of the flat end positioning shaft, the flat end adjusting block is positioned and clamped tightly, and the flat end tip hole of the flat end adjusting block and the center hole of the piston rod are centered through rotation of the adjusting screw.
Furthermore, a flat end circular truncated cone is arranged at the center of the inner end face of the flat end adjusting block, a flat end annular groove is formed in the periphery of the flat end circular truncated cone, the flat end adjusting screw hole penetrates through the outer wall to be communicated with the flat end annular groove, the flat end circular truncated cone extends into a central step hole of the shaft part of the flat end positioning shaft, and the shaft part is accommodated in the flat end annular groove.
Furthermore, a flange hole is arranged on the connecting part of the flat end positioning shaft, and the position of the flange hole corresponds to the flange hole of the flat end of the piston rod.
Furthermore, the adjusting screw comprises a screw body and a screw head, wherein the screw head is made of copper materials and is connected to the bottom end of the screw body through threads.
The invention has the beneficial effects that:
1) the invention uses the double-thimble mode to clamp and position the piston rod, avoids the error of repeated clamping and adjustment, ensures the precision of multiple times of getting on the vehicle and achieves the effect of ensuring the processing precision and the product quality.
2) The centering adjustment is realized by adopting the round end adjusting block, the flat end adjusting block and the adjusting screw, so that the labor intensity is effectively reduced, the working efficiency is improved, and the centering adjustment device has the advantages of simplicity and convenience in operation and simple structure.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention.
FIG. 2 is a schematic view of a round end conditioning block.
Fig. 3 is a left side view of fig. 2.
Figure 4 is a schematic view of a flat end positioning shaft and centering shaft.
Fig. 5 is a left side view of fig. 4.
Fig. 6 is a schematic view of a flat end conditioning block.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a schematic view of an adjustment screw.
In the figure, 1-round end adjusting block, 11-round end tip hole, 12-round end circular truncated cone, 13-round end annular groove, 14-round end adjusting screw hole, 2-adjusting screw, 21-screw body, 22-screw head, 3-round end positioning sleeve, 4-protective washer, 5-centering shaft, 6-connecting bolt, 7-flat end adjusting block, 71-flat end tip hole, 72-flat end circular truncated cone, 73-round end annular groove, 74-flat end adjusting screw hole, 8-flat end positioning shaft, 81-connecting part, 82-shaft part, 83-central step hole and 84-flange hole.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, which should not be construed as limiting the scope of the invention.
The piston rod A is of a rotary body structure and has the characteristics of large diameter and long length, and comprises a round end, a flat end and a central hole A1, wherein the flat end is provided with a flange hole, and the part to be machined on the piston rod A is an excircle and a step surface, so that the precision requirement is high. The numerical control grinding machine comprises a front tip and a rear tip.
The transmission device for grinding the piston rod of the marine diesel engine is fixedly connected to two ends of the piston rod A and is arranged between the front tip and the rear tip of the grinding machine.
Referring to fig. 1, the transmission device includes a round end transmission assembly and a flat end transmission assembly. The grinding machine is characterized in that the round end transmission assembly is fixedly connected to the round end of the piston rod A and connected with one tip of the grinding machine, the flat end transmission assembly is fixedly connected to the flat end of the piston rod A and connected with the other tip of the grinding machine, and the transmission device positions and clamps the piston rod A on the grinding machine in a double-tip mode to achieve grinding processing of the piston rod.
The round end transmission assembly comprises a round end adjusting block 1, a round end positioning sleeve 3 and an adjusting screw 2.
Referring to fig. 2 and fig. 3 in combination, the round end adjustment block 1 is a disc-shaped member, the center of the outer end surface is provided with a round end tip hole 11, the center of the inner end surface is provided with a round end circular platform 12, and a round end annular groove 13 is formed around the round end circular platform 12; the periphery of the round end adjusting block 1 is provided with four round end adjusting screw holes 14, and the four round end adjusting screw holes 14 are uniformly distributed along the circumference and penetrate through the outer wall along the radial direction to be communicated with the round end annular groove 13.
Referring to fig. 1, the round end adjustment block 1 is connected to the end surface of the round end of the piston rod a, the round end platform 12 extends into the central hole a1 of the round end of the piston rod a, and the round end of the piston rod a is accommodated in the round end annular groove 13 of the round end adjustment block 1. The round end positioning sleeve 3 is sleeved on the round end circular table 12 of the round end adjusting block 1 and clamped between the periphery of the round end circular table 12 and the hole wall of the center hole A1 of the piston rod A. The adjusting screw 2 passes through the round end adjusting screw hole 14 and abuts against the periphery of the round end of the piston rod a, so that the round end adjusting block 1 is positioned and clamped. By rotating the adjusting screw 2, the round end tip hole 11 of the round end adjusting block 1 and the center hole a1 of the piston rod a are centered, so that the round end tip hole 11 and the center hole a1 are located on the same central rotation axis.
Referring to fig. 1, the flat end transmission assembly includes a flat end positioning shaft 8, a centering shaft 5, a flat end adjusting block 7 and an adjusting screw 2.
And the flat end positioning shaft 8 is fixedly connected to the end surface of the flat end of the piston rod A through a connecting bolt 6 and a protective washer 4. Referring to fig. 4 and 5, the flat end positioning shaft 8 includes a connecting portion 81 located at the inner side and a shaft portion 82 located at the outer side, and a through central stepped hole 83 is formed at the center of the inner side. The connecting portion 81 of the flat end positioning shaft 8 is provided with a plurality of flange holes 84 for passing through the connecting bolts 6, and the positions of the flange holes 84 correspond to the flange holes of the flat end of the piston rod a.
The centering shaft 5 is a stepped shaft, the large end of the centering shaft extends into the center hole a1 of the flat end of the piston rod a, and the small end of the centering shaft extends into the center stepped hole 83 on the inner side of the flat end positioning shaft 8, so that the flat end positioning shaft 8 is centered, and the flat end positioning shaft 8 and the piston rod a are coaxial.
Referring to fig. 1, the flat end adjusting block 7 is connected to an outer end surface of the shaft portion of the flat end positioning shaft 8. Referring to fig. 6 and 7, the flat end adjusting block 7 is a disc-shaped member, the center of the outer end surface is provided with a flat end tip hole 71, the center of the inner end surface is provided with a flat end circular truncated cone 72, the periphery of the flat end circular truncated cone 72 is provided with a flat end annular groove 73, the periphery of the flat end adjusting block 7 is provided with four flat end adjusting screw holes 74 which are uniformly distributed circumferentially and radially, and the flat end adjusting screw holes 74 penetrate through the outer wall and are communicated with the flat end annular groove 73.
Referring to fig. 1, the flat end round platform 72 of the flat end adjusting block 7 extends into the central stepped hole 83 of the shaft portion 82 of the flat end positioning shaft 8, the shaft portion 82 is accommodated in the flat end annular groove 73 of the flat end adjusting block 7, and the adjusting screw 2 is tightly pressed against the periphery of the shaft portion 82 of the flat end positioning shaft 8 through the flat end adjusting screw hole 74 to position and clamp the flat end adjusting block 7. The flat end adjusting block 7 and the piston rod A can be centered by rotating the adjusting screw 2, so that the flat end tip hole 71 of the flat end adjusting block 7 and the center hole A1 of the piston rod A are located on the same central rotation axis.
Referring to fig. 8, the adjusting screw 2 includes a screw body 21 and a screw head 22, wherein the screw head 22 is connected to the bottom end of the screw body 21 through a screw thread; the screw head 22 is made of copper material so as not to damage the surface of the member to be clamped.
The invention utilizes the transmission device to process the piston rod, greatly improves the processing efficiency and the product quality, has simple and convenient operation and reduces the labor intensity.
The above embodiments are not intended to limit the scope of the present invention, and the claimed invention is not limited to the above embodiments, but also includes other obvious variations and modifications, and all equivalent variations and modifications made according to the spirit of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a transmission for marine diesel piston rod abrasive machining, fixed connection in the both ends of piston rod and install between two top in the front and back of grinding machine, the piston rod includes round end, flat end and centre bore, and this flat end is equipped with flange hole, its characterized in that: the transmission device comprises a round end transmission assembly and a flat end transmission assembly, the round end transmission assembly is fixedly connected to the round end of the piston rod and connected with one tip of the grinding machine, the flat end transmission assembly is fixedly connected to the flat end of the piston rod and connected with the other tip of the grinding machine, and the transmission device positions and clamps the piston rod on the grinding machine in a double-tip mode to achieve grinding processing of the piston rod.
2. A grinder transmission device for marine diesel engine piston rod machining according to claim 1, characterized in that: the round end transmission assembly comprises a round end adjusting block and an adjusting screw; the round end adjusting block is a disc-shaped component, a round end tip hole is arranged in the center of the outer end surface, a round end round table is arranged in the center of the inner end surface, the periphery of the round end round platform is a round end annular groove, the periphery of the round end adjusting block is provided with round end adjusting screw holes which are uniformly distributed on the circumference, the round end adjusting screw hole penetrates through the outer wall along the radial direction to be communicated with the round end annular groove, the round end adjusting block is connected to the end surface of the round end of the piston rod, the round end round platform extends into the central hole of the round end, the round end of the piston rod is accommodated in the round end annular groove of the round end adjusting block, the adjusting screw is tightly pressed against the periphery of the round end of the piston rod through the round end adjusting screw hole, and positioning and clamping the round end adjusting block, and centering a round end tip hole of the round end adjusting block and a center hole of the piston rod by rotating the adjusting screw.
3. A grinder transmission device for marine diesel engine piston rod machining according to claim 2, characterized in that: the round end transmission assembly further comprises a round end positioning sleeve, and the round end positioning sleeve is sleeved on the round end circular truncated cone of the round end adjusting block and clamped between the periphery of the round end circular truncated cone and the hole wall of the central hole of the piston rod.
4. A grinder transmission device for marine diesel engine piston rod machining according to claim 1, characterized in that: the flat end transmission assembly comprises a flat end positioning shaft, a centering shaft, a flat end adjusting block and an adjusting screw; the flat end positioning shaft is fixedly connected to the end face of the flat end of the piston rod through a connecting bolt, comprises an inner side connecting part and an outer side shaft part, and is internally provided with a central step hole penetrating through the center; the centering shaft is a stepped shaft, the large end of the centering shaft extends into the central hole of the flat end of the piston rod, and the small end of the centering shaft extends into the central stepped hole at the inner side of the flat end positioning shaft, so that the flat end positioning shaft is centered; the flat end adjusting block is connected to the outer end face of the shaft portion of the flat end positioning shaft, the flat end adjusting block is a disc-shaped component, a flat end tip hole is formed in the center of the outer end face, radial flat end adjusting screw holes are formed in the periphery of the outer end face, the circumference of the flat end adjusting screw holes are uniformly distributed, the adjusting screw penetrates through the flat end adjusting screw holes to tightly push against the periphery of the shaft portion of the flat end positioning shaft, the flat end adjusting block is positioned and clamped tightly, and the flat end tip hole of the flat end adjusting block and the center hole of the piston rod are centered through rotation of the adjusting screw.
5. A grinder transmission device for piston rod processing of marine diesel engine according to claim 4, characterized in that: the center of the inner end face of the flat end adjusting block is provided with a flat end round table, a flat end annular groove is formed in the periphery of the flat end round table, the flat end adjusting screw hole penetrates through the outer wall to be communicated with the flat end annular groove, the flat end round table extends into a central step hole of the shaft part of the flat end positioning shaft, and the shaft part is accommodated in the flat end annular groove.
6. A grinder transmission device for piston rod processing of marine diesel engine according to claim 4, characterized in that: and the connecting part of the flat end positioning shaft is provided with a flange hole, and the position of the flange hole corresponds to the flange hole of the flat end of the piston rod.
7. A grinder transmission for piston rod machining of marine diesel engines according to claim 2 or 4, characterized in that: the adjusting screw comprises a screw body and a screw head, wherein the screw head is made of copper materials and is connected to the bottom end of the screw body through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111286231.XA CN113910056A (en) | 2021-11-02 | 2021-11-02 | Transmission device for grinding piston rod of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111286231.XA CN113910056A (en) | 2021-11-02 | 2021-11-02 | Transmission device for grinding piston rod of marine diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113910056A true CN113910056A (en) | 2022-01-11 |
Family
ID=79245017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111286231.XA Pending CN113910056A (en) | 2021-11-02 | 2021-11-02 | Transmission device for grinding piston rod of marine diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113910056A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004007469A1 (en) * | 2004-02-13 | 2005-09-15 | Naxos-Union Gmbh | Clamping assembly for crankshaft machining tool has fixed non-rotating spikes |
| CN202053130U (en) * | 2011-04-15 | 2011-11-30 | 成都市西菱汽车配件有限责任公司 | Special clamp for camshaft grinding |
| CN203622190U (en) * | 2013-12-03 | 2014-06-04 | 上海中船三井造船柴油机有限公司 | Assembly fixture for cylindrical grinding of overlong axis parts |
| CN203712456U (en) * | 2014-03-10 | 2014-07-16 | 采埃孚商用车转向机（山东）有限公司 | Special external grinding device for sector shaft |
| CN104440536A (en) * | 2014-11-19 | 2015-03-25 | 哈尔滨电气动力装备有限公司 | Flexible transmission device used for grinding ultrathin long-cylinder part |
| CN204673339U (en) * | 2015-05-18 | 2015-09-30 | 长春轨道客车股份有限公司 | Hole-bored axle from end to end car grinding jig |
| CN212635195U (en) * | 2020-06-22 | 2021-03-02 | 大连创新零部件制造公司 | Novel worm grinding machine clamp |
-
2021
- 2021-11-02 CN CN202111286231.XA patent/CN113910056A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004007469A1 (en) * | 2004-02-13 | 2005-09-15 | Naxos-Union Gmbh | Clamping assembly for crankshaft machining tool has fixed non-rotating spikes |
| CN202053130U (en) * | 2011-04-15 | 2011-11-30 | 成都市西菱汽车配件有限责任公司 | Special clamp for camshaft grinding |
| CN203622190U (en) * | 2013-12-03 | 2014-06-04 | 上海中船三井造船柴油机有限公司 | Assembly fixture for cylindrical grinding of overlong axis parts |
| CN203712456U (en) * | 2014-03-10 | 2014-07-16 | 采埃孚商用车转向机（山东）有限公司 | Special external grinding device for sector shaft |
| CN104440536A (en) * | 2014-11-19 | 2015-03-25 | 哈尔滨电气动力装备有限公司 | Flexible transmission device used for grinding ultrathin long-cylinder part |
| CN204673339U (en) * | 2015-05-18 | 2015-09-30 | 长春轨道客车股份有限公司 | Hole-bored axle from end to end car grinding jig |
| CN212635195U (en) * | 2020-06-22 | 2021-03-02 | 大连创新零部件制造公司 | Novel worm grinding machine clamp |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220111 |
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