CN219725351U - Special fixture for screw pump shell - Google Patents
Special fixture for screw pump shell Download PDFInfo
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- CN219725351U CN219725351U CN202320888812.9U CN202320888812U CN219725351U CN 219725351 U CN219725351 U CN 219725351U CN 202320888812 U CN202320888812 U CN 202320888812U CN 219725351 U CN219725351 U CN 219725351U
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- tool
- pressing plate
- positioning disk
- frock
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- 238000003825 pressing Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 230000001788 irregular Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of professional clamps of screw pump shells, and discloses a special clamp of a screw pump shell, which comprises a tool, a first positioning disk, a second positioning disk and a pressing plate assembly, wherein the tool comprises a main tool, a first sub-tool and a second sub-tool, the pressing plate assembly comprises a spring, a pressing plate inner hexagon bolt and a pressing plate fastening nut, the first sub-tool and the second sub-tool are arranged above the tool, the first positioning disk is arranged in the center of the first sub-tool, the second positioning disk is arranged in the center of the second sub-tool, four groups of pressing plate assemblies are uniformly arranged on the first sub-tool on the periphery of the first positioning disk, four groups of pressing plate assemblies are uniformly arranged on the second sub-tool on the periphery of the positioning disk, and the pressing plate inner hexagon bolt sequentially penetrates through the pressing plate, the spring and the pressing plate fastening nut; the utility model has good stability and high precision, can meet the processing of the pump shell of most models of screw pumps, is more convenient to process, does not need frequent replacement of the tool, and greatly improves the operation efficiency.
Description
Technical Field
The utility model belongs to the technical field of professional clamps of screw pump shells, and particularly relates to a special clamp of a screw pump shell.
Background
The pump shell is used as one of the most core components of the screw pump, the screw pump has complex appearance and structure and higher requirement on dimensional accuracy, so that a processing technology of one-time processing production of a horizontal processing center is adopted, the pump shell is used as an irregular component, the clamping and positioning difficulties are higher, the form and position tolerance requirements are particularly strict, the requirements on rigidity of a cutter and the like are higher, and meanwhile, the requirements on finish degree of a processing surface are higher due to the fact that a large number of sealing components and irregular flow channels are involved, the processing difficulty and time are extremely increased, and the production efficiency is low; a special fixture for the pump housing is needed.
Disclosure of Invention
In order to solve the technical problems in the prior art, the utility model provides a special fixture for a screw pump shell, which comprises a fixture, a first positioning disk, a second positioning disk and a pressing plate assembly, wherein the fixture comprises a main fixture, a first sub-fixture and a second sub-fixture, the pressing plate assembly comprises a spring, a pressing plate inner hexagon bolt and a pressing plate fastening nut, the first sub-fixture and the second sub-fixture are arranged above the fixture, the first positioning disk is arranged in the center of the first sub-fixture, the second positioning disk is arranged in the center of the second sub-fixture, four groups of pressing plate assemblies are uniformly arranged on the first sub-fixture on the periphery of the first positioning disk, four groups of pressing plate assemblies are uniformly arranged on the second sub-fixture on the periphery of the positioning disk, the pressing plate inner hexagon bolt sequentially penetrates through the pressing plate, the spring and the pressing plate fastening nut, and a positioning pin is arranged on the second positioning disk.
Furthermore, the first positioning plate and the second positioning plate are both disc structures.
The method comprises the steps of connecting and fixing a main tool and an equipment workbench, positioning a first sub tool and a second sub tool above the main tool through positioning pins, fixing the main tool and the first sub tool through an inner hexagon bolt, and tightening the bolt; fixing the first positioning disk and the second positioning disk above the corresponding sub-tools through inner hexagon bolts respectively, tightening the bolts, and then installing positioning pins on the second positioning disk for positioning the workpieces; the inner hexagon bolts sequentially penetrate into the pressing plate, the springs and the pressing plate fastening nuts, the pressing plate fastening nuts are exposed, and the inner hexagon bolts are fixed above the corresponding first sub-tool and the corresponding second sub-tool and are locked and fastened; one end of the workpiece with a round flange is placed above the first positioning plate, the hexagon socket head cap bolts are tightened, the machined pump shell on the second positioning plate is provided with holes on the flange, the positioning is performed through positioning pins, then the direction of the pressing plate is adjusted, the pressing plate is fully pressed on the flange of the workpiece, and the pressing plate is pressed to fix two products.
The beneficial effects are that:
1. the fixture is good in stability and high in precision, is formed by processing carbon steel, can be used for a long time, is not easy to generate stress deformation, and is processed by high-precision equipment such as a numerical control lathe, a processing center and the like, so that the fixture has extremely high positioning precision and form and position tolerance requirements.
2. The utility model solves the problem of deformation of the workpiece caused by irregular products in the processing process, the tool adopts the pin holes to accurately position, and the auxiliary tool is used for press mounting and positioning, so that the deformation of the workpiece caused by uneven stress in the processing process is avoided, and the processing quality problem caused by the deformation is solved.
3. The tool is high in operation efficiency, can meet the requirement of processing of pump shells of most models of screw pumps, is more convenient to process after serialization is realized, does not need frequent replacement, and greatly improves the operation efficiency; meanwhile, the disassembly of the workpiece and the tool has no influence on the positioning accuracy of the tool, frequent alignment is not needed, the preparation time of the tool is greatly shortened, the tool is stable in structure during processing, and automatic processing and running of night equipment can be realized, so that the production and processing efficiency is better improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
as shown in the figure: the device comprises a main tool 1, a first sub tool 2, a second sub tool 3, a first positioning disk 4, a second positioning disk 5, a positioning pin 6, a pressing plate 7, a pressing plate fastening nut 8, a pressing plate inner hexagon bolt 9 and a spring 10.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a special fixture of screw pump case, including frock, positioning disk one 4, positioning disk two 5, clamp plate subassembly, positioning disk one 4 and positioning disk two 5 are disc structure, the frock includes main frock 1, sub frock one 2, sub frock two 3, clamp plate subassembly includes spring 10, clamp plate 7, clamp plate hexagon socket head cap screw, clamp plate fastening nut 8, sub frock one 2 and sub frock two 3 are installed in the frock top, positioning disk one 4 is installed at sub frock one 2 centers, positioning disk two 5 is installed at sub frock two 3 centers, four sets of clamp plate subassemblies are installed to equipartition on sub frock one 2 of positioning disk one 4 periphery, four sets of clamp plate subassemblies are installed to equipartition on sub frock two 3 of positioning disk two 5 periphery, clamp plate hexagon socket head cap screw passes clamp plate 7 in proper order, spring 10, clamp plate fastening nut 8, install locating pin 6 above the positioning disk two 5.
The method comprises the steps of firstly connecting and fixing a main tool 1 and an equipment workbench, then positioning a first sub tool 2 and a second sub tool 3 above the main tool 1 through a positioning pin 6, then fixing the main tool 1 through an inner hexagon bolt, and tightening the bolt; fixing the first positioning disk 4 and the second positioning disk 5 above the corresponding sub-tools through inner hexagon bolts respectively, tightening the bolts, and then installing the positioning pins 6 on the second positioning disk 5 for positioning the workpieces; the inner hexagon bolts sequentially penetrate through the pressing plate 7, the springs 10 and the pressing plate fastening nuts 8, the pressing plate fastening nuts 8 are exposed, and the inner hexagon bolts are fixed above the corresponding first sub-tool 2 and the corresponding second sub-tool 3 and are locked and fastened; one end of a workpiece with a round flange is placed above the first positioning disk 4, an inner hexagon bolt is tightened, a pump shell which is machined on the second positioning disk 5 is provided with holes on the flange, the positioning is performed through the positioning pins 6, then the direction of the pressing plate 7 is adjusted, the workpiece is fully pressed on the flange of the workpiece, and the pressing plate 7 is pressed to fix two products.
When an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element, or be directly connected to the other element or be indirectly connected to the other element.
The terms of the directions such as left, right, up, down, etc. in this embodiment are merely relative concepts or references to the normal use state of the product, and should not be construed as limiting.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. A special fixture of screw pump case, its characterized in that: including frock, positioning disk one, positioning disk two, clamp plate subassembly, the frock includes main frock, sub frock one, sub frock two, clamp plate subassembly includes spring, clamp plate inner hexagon bolt, clamp plate fastening nut, sub frock one and sub frock two are installed in the frock top, positioning disk one is installed at sub frock one center, positioning disk two is installed at sub frock two centers, four sets of clamp plate subassemblies are installed to equipartition on sub frock one of positioning disk one periphery, four sets of clamp plate subassemblies are installed to equipartition on sub frock two of positioning disk periphery.
2. A special fixture for a screw pump casing according to claim 1, wherein: and the inner hexagon bolt of the pressing plate sequentially penetrates through the pressing plate, the spring and the pressing plate fastening nut.
3. A special fixture for a screw pump casing according to claim 1, wherein: and a locating pin is arranged on the second locating plate.
4. A special fixture for a screw pump casing according to claim 1, wherein: the first positioning plate and the second positioning plate are both disc structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320888812.9U CN219725351U (en) | 2023-04-20 | 2023-04-20 | Special fixture for screw pump shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320888812.9U CN219725351U (en) | 2023-04-20 | 2023-04-20 | Special fixture for screw pump shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219725351U true CN219725351U (en) | 2023-09-22 |
Family
ID=88032630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320888812.9U Active CN219725351U (en) | 2023-04-20 | 2023-04-20 | Special fixture for screw pump shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219725351U (en) |
-
2023
- 2023-04-20 CN CN202320888812.9U patent/CN219725351U/en active Active
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| GR01 | Patent grant | ||
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