CN219665209U - Boring die body adopting rolling bearing - Google Patents
Boring die body adopting rolling bearing Download PDFInfo
- Publication number
- CN219665209U CN219665209U CN202320255624.2U CN202320255624U CN219665209U CN 219665209 U CN219665209 U CN 219665209U CN 202320255624 U CN202320255624 U CN 202320255624U CN 219665209 U CN219665209 U CN 219665209U
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- Prior art keywords
- boring
- rolling bearing
- seat
- die body
- long
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- 238000005096 rolling process Methods 0.000 title claims abstract description 67
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 6
- 230000003746 surface roughness Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model relates to the technical field of machining equipment, in particular to a boring die body adopting a rolling bearing, which comprises a supporting seat arranged on a boring die bottom plate, a long boring bar, a boring tool holder and a rolling bearing rotary boring sleeve assembly, wherein the rolling bearing rotary boring sleeve assembly is arranged in a seat hole of a supporting frame, the long boring bar is arranged in the boring tool holder and the rolling bearing rotary boring sleeve assembly in a penetrating way, and the boring tool holder and the long boring bar can rotate and axially move along the rolling bearing rotary boring sleeve assembly. The crankshaft Kong Kongji and the gear hole of the pump shell are machined after one-time clamping, the coaxiality of the crankshaft hole and the gear hole of a product and the design requirement of the parallelism of the axes of the crankshaft hole and the gear hole can be met, and the problem that the product quality cannot meet the requirement due to the fact that the repeated positioning precision of a machine tool, the rotation precision of a workbench, the telescopic length of a main shaft of the machine tool and the rigidity of the main shaft of the machine tool are relied is solved.
Description
Technical Field
The utility model relates to the technical field of machining equipment, in particular to a boring die body adopting a rolling bearing.
Background
In the field of oilfield mating equipment, there is an increasing demand for three-cylinder and five-cylinder plunger pump housings for well cementing and fracturing operations. The crank hole system and the gear hole system of the high-horsepower large-displacement pump shell are as long as 1600mm or more, and the machining mode of boring holes at the opposite ends of a numerical control boring and milling machine is adopted at present, because the repeated positioning precision of a machine tool, the rotation precision of a working table, the telescopic length of a main shaft of the machine tool and the rigidity of the main shaft are particularly depended, the design requirements of 0.025mm of coaxiality of the crank hole and the gear hole and 0.05mm of parallelism of the axes of the crank hole and the gear hole cannot be met, and therefore, a boring die body adopting a rolling bearing is provided.
Disclosure of Invention
The utility model aims to provide a boring die body adopting a rolling bearing, which is used for machining a crankshaft Kong Kongji and a gear hole of a pump shell after one-time clamping, can meet the design requirements of coaxiality of the crankshaft hole and the gear hole of a product and parallelism of axes of the crankshaft hole and the gear hole, and solves the problem that the product quality cannot meet the requirements due to the dependence on repeated positioning precision of a machine tool, rotation precision of a workbench, telescopic length of a main shaft of the machine tool and rigidity of the main shaft of the machine tool.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the boring die body comprises a supporting seat arranged on a boring die bottom plate, and a long boring bar, a boring tool holder and a rolling bearing rotary boring sleeve assembly, wherein the rolling bearing rotary boring sleeve assembly is arranged in a seat hole of a supporting frame, the long boring bar is arranged in the boring tool holder and the rolling bearing rotary boring sleeve assembly in a penetrating manner, and the boring tool holder and the long boring bar can rotate and axially move along the rolling bearing rotary boring sleeve assembly.
Preferably, the rolling bearing rotary boring sleeve assembly comprises a clamp spring, rolling bearings, a bearing sealing cover, an outer spacer bush, an inner spacer bush and an inner bearing rotary bush, wherein two rolling bearings are arranged on the inner bearing rotary bush and are separated from each other through the inner spacer bush and the outer spacer bush, the two clamp springs are used for limiting the two axial ends of the rolling bearings, the bearing sealing cover is arranged outside the rolling bearings, and the long boring rod penetrates through the inner bearing rotary bush.
Preferably, a dustproof sealing ring is arranged between the bearing sealing cover and the inner bearing rotary sleeve, and the rolling bearing rotary boring sleeve assembly is installed in the supporting seat through the matching of the bearing sealing cover and the bolt.
Preferably, the rolling bearing is a deep groove ball rolling bearing with a sealing ring.
Preferably, the outer ring of the rolling bearing is in transition fit with inner holes of the coupled front and rear support frames.
Preferably, the rolling bearing inner ring is in transition fit with the outer circle of the coupled inner bearing rotary sleeve.
Preferably, the supporting seat comprises a front supporting seat and a rear supporting seat, which are respectively provided with two groups of inner holes with the same diameter, and the long boring rod is used for processing a crank shaft hole of the pump shell when being penetrated in the holes with the same diameter; and the long boring rod is used for processing the gear hole of the pump shell when penetrating into the low group of holes.
Preferably, the boring cutter seat is pressed and fixed with the long boring rod through a locking bolt, and the boring cutter seat is provided with a cutter for cutting.
Preferably, a through groove is formed in the outer circle of the long boring bar, and the through groove is used for axial movement of the boring tool holder.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the long boring bar and the boring cutter seat are arranged on the boring die body support frame, the boring machine main shaft is connected with the long boring bar in the corresponding crankshaft hole rotary boring sleeve assembly, after the boring cutter seat is driven to rotationally cut and finish one hole, the boring cutter seat can slide along the long boring bar, the cutter seat moves to the next hole, the cutter seat is locked and rotationally cut, and a group of crankshaft hole systems are sequentially and circularly realized by once clamping and processing; the long boring bar and the boring cutter seat are arranged on the boring die body support frame, the boring bar is connected with the boring bar in the corresponding gear hole rotary boring sleeve assembly, the cutter seat is driven to move to the next hole after the rotary cutting machining is completed, the cutter seat is locked for rotary cutting, a group of gear holes are completed through one-time clamping machining, and the problem that the product quality cannot meet the requirement due to the fact that the repeated positioning precision of a machine tool, the rotary precision of a workbench, the telescopic length of the main shaft of the machine tool and the rigidity of the main shaft of the machine tool are relied on is solved.
Drawings
FIG. 1 is a front cross-sectional view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a side view of the present utility model;
FIG. 4 is an enlarged schematic view of a rolling bearing swivel boring sleeve assembly of the present utility model;
FIG. 5 is an exploded view of a rolling bearing swivel boring sleeve assembly of the present utility model.
In the figure: 1. a dust-proof sealing ring; 2. clamping springs; 3. a rolling bearing; 4. a bearing sealing cover; 5. an outer spacer; 6. an inner spacer; 7. an inner bearing swivel sleeve; 8. a long boring bar; 9. a front support base; 10. a rear support base; 11. boring a die bottom plate; 12. a pad platen assembly; 13. boring tool holder.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, a boring die body adopting a rolling bearing comprises a boring die bottom plate 11, a front supporting seat 10, a rear supporting seat 10, a rolling bearing rotary boring sleeve assembly, a boring cutter seat 13, a long boring bar 8 and a cushion block pressing plate assembly 12. The long boring bar 8 is arranged in the boring cutter seat 13 and the rolling bearing rotary boring sleeve component in a penetrating way, and the long boring bar 8 and the boring cutter seat 13 can both rotate and axially move along the rolling bearing rotary boring sleeve component to drive a cutter on the boring cutter seat 13 to cut. The long boring bar 8 and the boring cutter seat 13 are arranged on a boring die body supporting frame, a boring machine main shaft is connected with the long boring bar 8 in a corresponding crankshaft hole rotary boring sleeve assembly, after a hole is completed by driving rotary cutting, the boring cutter seat 13 can slide along the long boring bar 8, the boring cutter seat 13 moves to the next hole, the boring cutter seat is locked, rotary cutting is performed after the tool seat is locked, and a group of crankshaft hole systems are completed by sequentially and circularly realizing one-time clamping processing.
As shown in fig. 4 and 5, the rolling bearing rotary boring sleeve assembly comprises a clamp spring 2, rolling bearings 3, a bearing sealing cover 4, an outer spacer 5, an inner spacer 6 and an inner bearing rotary sleeve 7, wherein two rolling bearings 3 are arranged on the inner bearing rotary sleeve 7, the two rolling bearings 3 are separated from each other through the inner spacer 6 and the outer spacer 5, the two clamp springs 2 are used for limiting the two axial ends of the rolling bearings 3, the bearing sealing cover 4 is arranged outside the rolling bearings 3, and a long boring rod 8 penetrates through the inner bearing rotary sleeve 7. The rolling bearings 3 are all deep groove ball rolling bearings with sealing rings.
A dustproof sealing ring 1 is arranged between the bearing sealing cover 4 and the inner bearing rotary sleeve 7, and the rolling bearing rotary boring sleeve assembly is installed in the supporting seat through the matching of the bearing sealing cover 4 and bolts.
The outer ring of the rolling bearing 3 is in transition fit with the inner holes of the coupled front and rear support frames. The inner ring of the rolling bearing 3 is in transition fit with the outer circle of the coupled inner bearing rotary sleeve 7.
A section of metric 80 taper handle is arranged on the long boring bar 8, a radial hanging hole with the diameter of 20mm is arranged at the other end, a through groove with the width of 20mm and the depth of 5mm is arranged on the outer circle of the middle section, the through groove is used for the axial movement of the boring cutter holder 13, a chromium plating wear-resistant layer is arranged at the through groove, the hardness HRC is more than or equal to 60, and the layer depth is 0.6mm.
The support seat comprises a front support seat 9 and a rear support seat 10, which are respectively provided with two groups of inner holes with the same diameter, and the long boring rod 8 is used for processing a crank shaft hole of the pump shell when being arranged in the holes of the high group in a penetrating way; when the long boring bar 8 is penetrated in the low group of holes, the long boring bar is used for processing the gear hole of the pump shell. The boring cutter holder 13 is pressed and fixed with the long boring bar 8 through a locking bolt, and the boring cutter holder 13 is provided with a cutter for cutting. The long boring bar 8 and the boring cutter seat 13 are arranged on a boring die body supporting frame, corresponding gear holes are arranged in a rotary boring sleeve component, a boring machine main shaft is connected with the boring bar, after a hole is completed by driving rotary cutting processing, a cutter seat moves to the next hole, the cutter seat is locked, and then rotary cutting is performed, so that a group of gear holes are completed by one-time clamping processing.
The processing mode of the utility model can ensure that the coaxiality of the crank shaft hole and the gear hole is 0.025mm, and meets the design requirement of 0.05mm of parallelism of the center axes of the crank shaft hole and the gear hole; the rolling bearing 3 is adopted to lubricate more well, and the linear speed is easy to be increased, so that good surface roughness is obtained, and the technical requirement of the surface roughness of 1.6um is met.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A boring die body adopting a rolling bearing is characterized in that: the boring tool comprises a support seat arranged on a boring tool bottom plate (11), and a long boring bar (8), a boring tool seat (13) and a rolling bearing rotary boring sleeve assembly, wherein the rolling bearing rotary boring sleeve assembly is arranged in a seat hole of a support frame, the long boring bar (8) is arranged in the boring tool seat (13) and the rolling bearing rotary boring sleeve assembly in a penetrating manner, and the boring tool seat (13) and the long boring bar (8) can both rotate and axially move along the rolling bearing rotary boring sleeve assembly.
2. A boring die body employing a rolling bearing as claimed in claim 1, wherein: the rolling bearing rotary boring sleeve assembly comprises a clamp spring (2), rolling bearings (3), a bearing sealing cover (4), an outer spacer bush (5), an inner spacer bush (6) and an inner bearing rotary sleeve (7), wherein two rolling bearings (3) are arranged on the inner bearing rotary sleeve (7), the two rolling bearings (3) are separated from each other through the inner spacer bush (6) and the outer spacer bush (5), the two clamp springs (2) are used for limiting the two axial ends of the rolling bearings (3), the bearing sealing cover (4) is arranged outside the rolling bearings (3), and a long boring rod (8) penetrates through the inner bearing rotary sleeve (7).
3. A boring die body employing a rolling bearing as claimed in claim 2, wherein: a dustproof sealing ring (1) is arranged between the bearing sealing cover (4) and the inner bearing rotary sleeve (7), and the rolling bearing rotary boring sleeve assembly is installed in the supporting seat through the matching of the bearing sealing cover (4) and the bolt.
4. A boring die body employing a rolling bearing as claimed in claim 2, wherein: the rolling bearing (3) is a deep groove ball rolling bearing with a sealing ring.
5. A boring die body employing a rolling bearing as claimed in claim 2, wherein: the outer ring of the rolling bearing (3) is in transition fit with the inner holes of the front support frame seat and the rear support frame seat which are coupled.
6. A boring die body employing a rolling bearing as claimed in claim 2, wherein: the inner ring of the rolling bearing (3) is in transition fit with the outer circle of the coupled inner bearing rotary sleeve (7).
7. A boring die body employing a rolling bearing according to claim 1 or 3, wherein: the support seat comprises a front support seat (9) and a rear support seat (10), wherein two groups of inner holes with the same diameter are respectively arranged at the high and low positions, and the long boring rod (8) is used for processing a crank shaft hole of the pump shell when being penetrated in the high group of holes; and the long boring rod (8) is used for processing the gear hole of the pump shell when penetrating into the low group of holes.
8. A boring die body employing a rolling bearing as claimed in claim 1, wherein: the boring cutter seat (13) is pressed and fixed with the long boring rod (8) through a locking bolt, and the boring cutter seat (13) is provided with a cutter for cutting.
9. A boring die body employing a rolling bearing as claimed in claim 1, wherein: the excircle of the long boring bar (8) is provided with a through groove which is used for axial movement of the boring cutter holder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320255624.2U CN219665209U (en) | 2023-02-20 | 2023-02-20 | Boring die body adopting rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320255624.2U CN219665209U (en) | 2023-02-20 | 2023-02-20 | Boring die body adopting rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665209U true CN219665209U (en) | 2023-09-12 |
Family
ID=87924833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320255624.2U Active CN219665209U (en) | 2023-02-20 | 2023-02-20 | Boring die body adopting rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665209U (en) |
-
2023
- 2023-02-20 CN CN202320255624.2U patent/CN219665209U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |