CN211162962U - Rotatory clamping apparatus that adds of crankcase for aviation - Google Patents
Rotatory clamping apparatus that adds of crankcase for aviation Download PDFInfo
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- CN211162962U CN211162962U CN201921854853.6U CN201921854853U CN211162962U CN 211162962 U CN211162962 U CN 211162962U CN 201921854853 U CN201921854853 U CN 201921854853U CN 211162962 U CN211162962 U CN 211162962U
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- crankcase
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- positioning block
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Abstract
The utility model discloses a rotary machining clamp for an aviation crankcase, which comprises a rotary dividing disc and a tailstock which are fixed on a numerical control machine tool workbench at intervals, wherein a tool bottom plate is connected between the rotary dividing disc and the tailstock, and the tool bottom plate is driven by the rotary dividing disc to rotate intermittently; the tool bottom plate is provided with a first tool and a second tool at intervals, and the first tool and the second tool are respectively clamped and fixed with a first crankcase and a second crankcase to be processed. The utility model discloses a secondary clamping just can accomplish the processing of each partial plane of crankcase and step for the aviation, guarantees the machining precision of crankcase for the aviation through utilizing digit control machine tool precision, frock bottom plate rotation accuracy, frock precision, and this processing mode makes the production efficiency height, the processing cost is low, the machining precision height of processing crankcase for the aviation.
Description
Technical Field
The utility model relates to a machining anchor clamps field especially relates to rotatory processing anchor clamps of crankcase for aviation.
Background
In the prior art, the machining precision and the structure of the aviation crankcase which is complex are required to be respectively carried out on a plurality of machine tools, the plane, the step and the hole of the front part of the aviation crankcase are machined on different machine tools, and the plane, the step, the hole and the like of the back part of the aviation crankcase are machined on another machine tool. When each machine tool is machined, clamping and positioning are needed once, and clamping and positioning errors are increased due to multiple times of clamping and positioning; the aviation crankcase which is of a complex structure and requires high precision is influenced by clamping forces in different directions when being clamped and positioned for multiple times, and the aviation crankcase is easy to deform, so that the precision of the machined aviation crankcase is low; in addition, separate machining on multiple machine tools requires multiple devices, multiple sets of fixtures and tools (the same tool needs to be provided with multiple sets of tools), which results in low production efficiency and high machining cost.
Disclosure of Invention
An object of the utility model is to provide a rotatory processing anchor clamps of crankcase for aviation that production efficiency is high, the processing cost is low, the machining precision is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the rotary machining clamp for the aviation crankcase is used on a numerical control machine tool and comprises a rotary index plate and a tailstock which are fixed on a workbench of the numerical control machine tool at intervals, a tool bottom plate is connected between the rotary index plate and the tailstock, and the tool bottom plate is driven by the rotary index plate to rotate intermittently;
a first tool and a second tool are arranged on the tool bottom plate at intervals, and a first crankcase and a second crankcase to be processed are clamped and fixed on the first tool and the second tool respectively;
the first tool comprises a first clamping mechanism and a first positioning block, the first positioning block is fixed on a tool bottom plate, two positioning pins are arranged on the top surface of the first positioning block at intervals, one end surface of the first crankcase is supported on the top surface of the first positioning block, and the two positioning pins are respectively sleeved in the two positioning holes on the corresponding end surface of the first crankcase; the first crankcase is pressed and positioned on the first positioning block by the first clamping mechanism;
the second tool comprises a second clamping mechanism and a second positioning block, the first positioning block is fixed on the tool bottom plate, the first positioning block is provided with a supporting bottom surface and a positioning side surface which are perpendicular to each other, the positioning side surface is provided with a positioning lug, one end surface of the second crankcase is supported on the supporting bottom surface, a positioning hole in the other end surface of the second crankcase is sleeved on the positioning lug, and the second clamping mechanism tightly presses and positions the second crankcase on the second positioning block.
The first clamping mechanism comprises two first pressing oil cylinders arranged on two sides of the first positioning block, a first pressing head is fixed at a push rod end of each first pressing oil cylinder, and the first pressing heads press the first crank case from top to bottom.
The second clamping mechanism comprises a second side pressing oil cylinder and a second top pressing oil cylinder,
a second side pressure head is fixed at the push rod end of the second side pressing oil cylinder, the second side pressure head is arranged corresponding to the positioning lug, and the second side pressure head is pressed on the side part of the second crankcase;
and a second top pressure head is fixed at the push rod end of the second top pressing oil cylinder and is pressed on the top of the second crankcase.
The utility model discloses a processing of each partial plane of crankcase and step for the aviation just can be accomplished to twice clamping, guarantees the machining precision of crankcase for the aviation through utilizing digit control machine tool precision, frock bottom plate rotation accuracy, frock precision, and this processing mode makes the production efficiency height, the processing cost is low, the machining precision height of processing crankcase for the aviation.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of a first tool and a second tool.
Detailed Description
As shown in fig. 1 or fig. 2, the rotary machining fixture for the aviation crankcase of the present invention is used for a numerical control machine, and includes a rotary index plate 1 and a tailstock 2 fixed on a workbench of the numerical control machine at intervals, a tooling bottom plate 3 is connected between the rotary index plate 1 and the tailstock 2, and the tooling bottom plate 3 is driven by the rotary index plate 1 to rotate intermittently;
a first tool 4 and a second tool 5 are arranged on the tool bottom plate 3 at intervals, and a first crankcase and a second crankcase to be processed are respectively clamped and fixed on the first tool 4 and the second tool 5;
the first tool 4 comprises a first clamping mechanism and a first positioning block 41, the first positioning block 41 is fixed on the tool bottom plate 3, two positioning pins 42 are arranged on the top surface of the first positioning block 41 at intervals, one end surface of the first crankcase is supported on the top surface of the first positioning block 41, and the two positioning pins 42 are respectively sleeved in the two positioning holes on the corresponding end surface of the first crankcase; the first clamping mechanism tightly presses and positions the first crankcase on the first positioning block 41; the first clamping mechanism specifically comprises two first pressing oil cylinders 43 arranged on two sides of the first positioning block 41, a first pressing head 43 is fixed at a push rod end of each first pressing oil cylinder 43, and the first pressing head 43 presses the first crankcase from top to bottom.
The second fixture 5 comprises a second clamping mechanism and a second positioning block 51, the second positioning block 51 is fixed on the fixture base plate 3, the second positioning block 51 is provided with a supporting bottom surface and a positioning side surface which are perpendicular to each other, the positioning side surface is provided with a positioning bump 52, one end surface of the second crankcase is supported on the supporting bottom surface, a positioning hole in the other end surface of the second crankcase is sleeved on the positioning bump 52, and the second clamping mechanism presses and positions the second crankcase on the second positioning block 51. The second clamping mechanism specifically comprises a second side pressing oil cylinder 53 and a second top pressing oil cylinder 55, a second side pressing head 54 is fixed at a push rod end of the second side pressing oil cylinder 53, the second side pressing head 54 is arranged corresponding to the positioning bump 52, and the second side pressing head 54 is pressed on the side of the second crankcase; and a second top pressure head 56 is fixed at the push rod end of the second top pressing oil cylinder 55, and the second top pressure head 56 is pressed on the top of the second crankcase.
The utility model discloses a theory of operation: add man-hour, press from both sides first crankcase and second crankcase respectively and tightly be located first frock 4 and second frock 5, numerical control machine tool machining is according to processing technology requirement and processing sequence, rotatory frock bottom plate 3360 degree, each plane and the step of processing part, after 4 peripheral processing departments on the first frock 4 are accomplished in the processing, take out first crankcase, place and carry out the processing on the surplus face on second frock 5. In the course of working, two crankcase on first frock 4 and the second frock 5 are processed simultaneously to improve equipment utilization and efficiency, reduce the cost of labor.
The practice of the present invention has been described with reference to the accompanying drawings, but the invention is not limited to the embodiments described above, which are illustrative rather than limiting, and it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (3)
1. Rotatory clamping apparatus that adds of crankcase for aviation for on the digit control machine tool, its characterized in that: the tooling bottom plate is driven by the rotary index plate to rotate intermittently;
a first tool and a second tool are arranged on the tool bottom plate at intervals, and a first crankcase and a second crankcase to be processed are clamped and fixed on the first tool and the second tool respectively;
the first tool comprises a first clamping mechanism and a first positioning block, the first positioning block is fixed on a tool bottom plate, two positioning pins are arranged on the top surface of the first positioning block at intervals, one end surface of the first crankcase is supported on the top surface of the first positioning block, and the two positioning pins are respectively sleeved in the two positioning holes on the corresponding end surface of the first crankcase; the first crankcase is pressed and positioned on the first positioning block by the first clamping mechanism;
the second tool comprises a second clamping mechanism and a second positioning block, the … second positioning block is fixed on the tool bottom plate, the second positioning block is provided with a supporting bottom surface and a positioning side surface which are perpendicular to each other, the positioning side surface is provided with a positioning lug, one end surface of the second crankcase is supported on the supporting bottom surface, the positioning hole in the other end surface of the second crankcase is sleeved on the positioning lug, and the second clamping mechanism tightly presses and positions the second crankcase on the second positioning block.
2. The rotary machining jig for the crankcase for aircraft according to claim 1, characterized in that: the first clamping mechanism comprises two first pressing oil cylinders arranged on two sides of the first positioning block, a first pressing head is fixed at a push rod end of each first pressing oil cylinder, and the first pressing heads press the first crank case from top to bottom.
3. The rotary machining jig for the crankcase for aircraft according to claim 1, characterized in that: the second clamping mechanism comprises a second side pressing oil cylinder and a second top pressing oil cylinder,
a second side pressure head is fixed at the push rod end of the second side pressing oil cylinder, the second side pressure head is arranged corresponding to the positioning lug, and the second side pressure head is pressed on the side part of the second crankcase;
and a second top pressure head is fixed at the push rod end of the second top pressing oil cylinder and is pressed on the top of the second crankcase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854853.6U CN211162962U (en) | 2019-10-31 | 2019-10-31 | Rotatory clamping apparatus that adds of crankcase for aviation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854853.6U CN211162962U (en) | 2019-10-31 | 2019-10-31 | Rotatory clamping apparatus that adds of crankcase for aviation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211162962U true CN211162962U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921854853.6U Active CN211162962U (en) | 2019-10-31 | 2019-10-31 | Rotatory clamping apparatus that adds of crankcase for aviation |
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| Country | Link |
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| CN (1) | CN211162962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045463A (en) * | 2020-09-02 | 2020-12-08 | 江苏力源液压机械有限公司 | Gear pump floating shaft sleeve fixing tool |
-
2019
- 2019-10-31 CN CN201921854853.6U patent/CN211162962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045463A (en) * | 2020-09-02 | 2020-12-08 | 江苏力源液压机械有限公司 | Gear pump floating shaft sleeve fixing tool |
| CN112045463B (en) * | 2020-09-02 | 2022-04-05 | 江苏力源液压机械有限公司 | Gear pump floating shaft sleeve fixing tool |
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