CN113579809A - Large-scale engine bearing cap processing frock - Google Patents
Large-scale engine bearing cap processing frock Download PDFInfo
- Publication number
- CN113579809A CN113579809A CN202110878203.0A CN202110878203A CN113579809A CN 113579809 A CN113579809 A CN 113579809A CN 202110878203 A CN202110878203 A CN 202110878203A CN 113579809 A CN113579809 A CN 113579809A
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- China
- Prior art keywords
- oil cylinder
- shaft
- fixedly arranged
- plate
- clamp body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 210000000078 claw Anatomy 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000012163 sequencing technique Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a large-scale engine bearing cap processing tool, which solves the technical problem that the requirement of dimensional tolerance is difficult to guarantee in the sequencing processing of the existing engine bearing cap, and is provided with a bottom plate, wherein a clamp body is fixedly arranged on the bottom plate, the clamp body is fixedly connected with a support plate, a main plate is fixedly arranged at the front end of the support plate, a positioning device and a guide block are fixedly arranged at the lower end of the main plate, a push-pull oil cylinder and a corner oil cylinder are fixedly arranged at the front end of the clamp body, an oil distribution device is fixedly arranged at the rear end of the clamp body, the push-pull oil cylinder is provided with a top shaft, a clamping jaw is arranged at the lower end of the top shaft, and the top shaft and the clamping jaw are in taper fit; the corner oil cylinder is characterized in that a pull rod is fixedly arranged at the front end of the corner oil cylinder, the pull rod is connected with a pressing plate through threads, and the pressing plate can rotate by 90 degrees when the corner oil cylinder is loosened. The invention can be widely applied to the processing process of the bearing cover of the large-scale engine.
Description
Technical Field
The invention relates to the field of machining, in particular to a large-scale engine bearing cap machining tool.
Background
In the engine crank link mechanism, a crankshaft serves as a main rotating member of the engine and can convert the reciprocating motion of a connecting rod into the rotating motion and realize power output. During the operation of the engine, the crankshaft operates under the action of the gas pressure, the moving mass inertia force and the moment thereof which change periodically, so that alternating stresses such as tension, compression, bending and torsion which change rapidly are generated in the crankshaft during the rotation process. And the main bearing cover and the main bearing seat are matched together to support and fix the crankshaft and play a role in bearing alternating load applied by the reciprocating motion of the crank-connecting rod mechanism. As shown in fig. 1, the engine bearing cover is provided with A, B reference planes, parallelism and perpendicularity to A, B reference planes; perpendicularity of reference C; the length dimension of the bearing cover is strict. The existing processing method adopts sequence processing and is difficult to ensure the requirement of dimensional tolerance.
Disclosure of Invention
The invention provides a large-scale engine bearing cap processing tool capable of processing three references at one time, aiming at solving the technical problem that the requirement on dimensional tolerance is difficult to guarantee in the existing sequential processing of the engine bearing cap.
The invention provides a large-scale engine bearing cap machining tool which is provided with a bottom plate, wherein a clamp body is fixedly arranged on the bottom plate, the clamp body is fixedly connected with a supporting plate, a main plate is fixedly arranged at the front end of the supporting plate, a positioning device and a guide block are fixedly arranged at the lower end of the main plate, a push-pull oil cylinder and a corner oil cylinder are fixedly arranged at the front end of the clamp body, an oil distribution device is fixedly arranged at the rear end of the clamp body, the push-pull oil cylinder is provided with a top shaft, a clamping claw is arranged at the lower end of the top shaft, and the top shaft is in taper fit with the clamping claw; the corner oil cylinder is characterized in that a pull rod is fixedly arranged at the front end of the corner oil cylinder, the pull rod is connected with a pressing plate through threads, and the pressing plate can rotate by 90 degrees when the corner oil cylinder is loosened.
Preferably, the positioning device is provided with two positioning blocks; the guide block positioning block and the guide block are connected to the lower end of the main plate through threads.
Preferably, a connecting shaft is arranged between the jacking shaft and the push-pull oil cylinder, the jacking shaft and the clamping jaws are arranged in the guide body, bushings are respectively arranged at two ends of the jacking shaft, and the jacking shaft is further provided with a dustproof ring.
Preferably, the oil distribution device is provided with an oil distribution shaft, the oil distribution shaft is fixed on the clamp body through threaded connection, the rear end of the oil distribution shaft is provided with an oil distributor, and the oil distributor is further connected with an oil distributor cover.
Preferably, the front end of the clamping claw is provided with a guide cover plate, and the upper end of the guide cover plate is provided with a dust cover.
The invention has the beneficial effects that: the invention adopts two sets of hydraulic clamping tools for clamping, adopts the middle shaft neck semicircular hole for positioning, processes three references at one time, avoids secondary clamping, ensures the assembly size requirement of the bearing cover and the engine, and effectively ensures the parallelism and perpendicularity requirements of the bearing cover. The error caused by secondary positioning and clamping in sequence processing is overcome.
Drawings
FIG. 1a is a schematic front view of a bearing cap to be machined according to the present invention;
FIG. 1b is a schematic top view of a bearing cap to be machined according to the present invention;
FIG. 2 is a schematic view of the construction of the clamping bearing cap of the present invention;
FIG. 3 is a schematic sectional view taken along line A-A of the present invention;
FIG. 4 is a schematic cross-sectional view B-B of the present invention.
Description of the symbols of the drawings:
1. a clamp body; 2. a support plate; 3. a main board; 4. a first positioning block; 5. a second positioning block; 6. a guide body; 7. a guide cover plate; 8. a clamping jaw; 9. a top shaft; 10. a first bushing; 11. a second bushing; 12. a dust ring; 13. a positioning sleeve; 14. an oil distributor cover; 15. an oil distributor; 16. an oil distribution shaft; 17. a connecting rod; 18. pressing a plate; 19. a connecting plate; 20. a dust cover; 21. a connecting shaft; 22. a support pillar; 23. a push-pull oil cylinder; 24. a corner oil cylinder; 25. a base plate; 26. a guide block; 27. a cylinder gasket.
Detailed Description
The present invention is further described below with reference to the drawings and examples so that those skilled in the art can easily practice the present invention.
Example (b): as shown in fig. 2-4, the present invention comprises a bottom plate 25, a clamp body 1 is fixedly arranged on the bottom plate 25, the clamp body 1 is fixedly connected with a support plate 2, a main plate 3 is arranged at the front end of the support plate 2, a positioning device and a guiding device are arranged at the lower end of the main plate 3, and two positioning devices are arranged, namely a first positioning block 4 and a second positioning block 5; the guiding device is a guiding block 26, and the first positioning block 4, the second positioning block 5 and the guiding block 26 are connected to the lower end of the main plate 3 through threads.
The jacking shaft 9 is connected with the push-pull oil cylinder through a connecting shaft 21, and the connecting shaft 21 can eliminate the axial error between the jacking shaft 9 and the push-pull oil cylinder 23. The jacking shaft 9 and the clamping claw 8 are arranged in the guide body 6, a closed space is formed inside the guide body 6, the jacking shaft 9 and the clamping claw 8 act in the guide body 6, only reciprocating linear operation is performed through limiting of the guide body 6, the jacking shaft 9 and the clamping claw 8 are in taper fit, thrust is applied to the jacking shaft 9 through the push-pull oil cylinder 23, the jacking shaft 9 ejects the clamping claw 8, and therefore the semicircular hole of the bearing cover is tightly propped. Because the top shaft 9 needs to do linear reciprocating motion and has abrasion when being rubbed with the guide body 6, the first bush 10 and the second bush 11 are respectively arranged at the two ends of the top shaft 9, and the first bush 10 and the second bush 11 play roles of righting and guiding the top shaft 9 and simultaneously play roles of preventing abrasion. And a dustproof ring 12 is also arranged to prevent scrap iron from entering the guide body 6 during processing and causing strain on the top shaft 9.
A piston rod of the corner oil cylinder 24 is fixedly connected with the pull rod 17, the press plate 18 is fixedly connected with the pull rod 17, and the piston rod is extended by the pull rod 17 due to the fact that the length of the piston rod of the corner oil cylinder is limited; the piston rod of the corner cylinder 24 can rotate 90 degrees to drive the pressing plate 18 to rotate. The corner cylinder 24 attaches the workpiece plane to the locating plane during compaction. When the corner oil cylinder 24 is loosened, the corner oil cylinder can rotate 90 degrees, and the clamping of the workpiece is not influenced.
The rear end of the clamp body 1 is provided with an oil distribution device, the oil distribution device is provided with an oil distribution shaft 16, the oil distribution shaft 16 is fixed on the clamp body 1 through threaded connection, the rear end of the oil distribution shaft 16 is provided with an oil distributor 15, the oil distributor 15 is further connected with an oil distributor cover 15, the oil distribution shaft 16 is fixed through a positioning sleeve 13, and the positioning sleeve 13 plays a role in righting and supporting the oil distribution shaft 16 to prevent the oil distribution shaft 16 from deforming due to dead weight or external force. The front end of the clamping claw 8 is provided with a guide cover plate 7, and the upper end of the guide cover plate 7 is provided with a dust cover 20.
The connecting plate 19 is a spare clamping scheme, forms a lever principle with the pressing plate 18 and the pull rod 17, and increases pressing force. When the pressing force of the pressing plate 18 is insufficient, the standby scheme is adopted; it has been found in practice that the pressing force of the press plate 18 is sufficient during the machining process, so that this alternative solution is not necessary. The supporting column 22 is interposed between the clamp body 1 and the main board 3 to support.
The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not to be construed as limiting the present invention, and it is apparent to those skilled in the art that various modifications and variations can be made in the present invention. All changes, equivalents, modifications and the like which come within the scope of the invention as defined by the appended claims are intended to be embraced therein.
Claims (5)
1. A large-scale engine bearing cap processing tool is characterized by comprising a bottom plate, wherein a clamp body is fixedly arranged on the bottom plate, the clamp body is fixedly connected with a supporting plate, a main plate is fixedly arranged at the front end of the supporting plate, a positioning device and a guide block are fixedly arranged at the lower end of the main plate, a push-pull oil cylinder and a corner oil cylinder are fixedly arranged at the front end of the clamp body, an oil distribution device is fixedly arranged at the rear end of the clamp body, the push-pull oil cylinder is provided with a top shaft, a clamping claw is arranged at the lower end of the top shaft, and the top shaft and the clamping claw are in taper fit; the corner oil cylinder is characterized in that a pull rod is fixedly arranged at the front end of the corner oil cylinder, the pull rod is connected with a pressing plate through threads, and the pressing plate can rotate by 90 degrees when the corner oil cylinder is loosened.
2. The large engine bearing cap machining tool according to claim 1, wherein the positioning device is provided with two positioning blocks; the guide block positioning block and the guide block are connected to the lower end of the main plate through threads.
3. The large-sized engine bearing cap machining tool according to claim 2, wherein a connecting shaft is arranged between the jacking shaft and the push-pull oil cylinder, the jacking shaft and the clamping jaws are arranged in the guide body, bushings are arranged at two ends of the jacking shaft respectively, and the jacking shaft is further provided with a dust ring.
4. The large-sized engine bearing cap machining tool according to claim 1, wherein the oil distribution device is provided with an oil distribution shaft, the oil distribution shaft is fixed on the clamp body through threaded connection, an oil distributor is arranged at the rear end of the oil distribution shaft, and the oil distributor is further connected with an oil distributor cap.
5. The large-scale engine bearing cap processing tool according to claim 1, wherein a guide cover plate is arranged at the front end of the clamping claw, and a dust cover is arranged at the upper end of the guide cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110878203.0A CN113579809A (en) | 2021-08-02 | 2021-08-02 | Large-scale engine bearing cap processing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110878203.0A CN113579809A (en) | 2021-08-02 | 2021-08-02 | Large-scale engine bearing cap processing frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113579809A true CN113579809A (en) | 2021-11-02 |
Family
ID=78253520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110878203.0A Pending CN113579809A (en) | 2021-08-02 | 2021-08-02 | Large-scale engine bearing cap processing frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113579809A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202861826U (en) * | 2012-10-12 | 2013-04-10 | 芜湖永裕汽车工业有限公司 | Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface |
| CN203622001U (en) * | 2013-11-15 | 2014-06-04 | 芜湖永裕汽车工业有限公司 | Novel fixture for rough and fine milling of bottom surface of bearing cover of engine camshaft |
| CN203843558U (en) * | 2014-04-17 | 2014-09-24 | 重庆康辉机械制造有限公司 | Bearing cap two-side milling tool |
| CN203936652U (en) * | 2014-04-17 | 2014-11-12 | 重庆康辉机械制造有限公司 | Three frocks of bearing cap milling |
| CN105817922A (en) * | 2016-05-19 | 2016-08-03 | 无锡烨隆精密机械有限公司 | Positioning tool for volute air outlet machining |
| CN207057653U (en) * | 2017-08-15 | 2018-03-02 | 浙江恒威汽车部件有限公司 | A kind of aluminium wheels clamp for machining |
| CN110936204A (en) * | 2020-01-08 | 2020-03-31 | 山东力得汽车科技股份有限公司 | Machining clamp for disc brake bracket |
| CN111618634A (en) * | 2020-06-30 | 2020-09-04 | 浙江佛尔泰智能设备有限公司 | Automatic telescopic pressing mechanism with inner hole self-centering function |
| CN211516799U (en) * | 2020-01-08 | 2020-09-18 | 山东力得汽车科技股份有限公司 | Machining clamp for disc brake bracket |
| CN212095317U (en) * | 2019-12-30 | 2020-12-08 | 潍坊宝润机械有限公司 | Engine bearing cap adds clamping apparatus frock |
| CN212946674U (en) * | 2019-08-21 | 2021-04-13 | 上海领策精密机械有限公司 | Fork arm clamp clamping device |
-
2021
- 2021-08-02 CN CN202110878203.0A patent/CN113579809A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202861826U (en) * | 2012-10-12 | 2013-04-10 | 芜湖永裕汽车工业有限公司 | Fixture used for rough milling and finish milling of engine camshaft bearing cap undersurface |
| CN203622001U (en) * | 2013-11-15 | 2014-06-04 | 芜湖永裕汽车工业有限公司 | Novel fixture for rough and fine milling of bottom surface of bearing cover of engine camshaft |
| CN203843558U (en) * | 2014-04-17 | 2014-09-24 | 重庆康辉机械制造有限公司 | Bearing cap two-side milling tool |
| CN203936652U (en) * | 2014-04-17 | 2014-11-12 | 重庆康辉机械制造有限公司 | Three frocks of bearing cap milling |
| CN105817922A (en) * | 2016-05-19 | 2016-08-03 | 无锡烨隆精密机械有限公司 | Positioning tool for volute air outlet machining |
| CN207057653U (en) * | 2017-08-15 | 2018-03-02 | 浙江恒威汽车部件有限公司 | A kind of aluminium wheels clamp for machining |
| CN212946674U (en) * | 2019-08-21 | 2021-04-13 | 上海领策精密机械有限公司 | Fork arm clamp clamping device |
| CN212095317U (en) * | 2019-12-30 | 2020-12-08 | 潍坊宝润机械有限公司 | Engine bearing cap adds clamping apparatus frock |
| CN110936204A (en) * | 2020-01-08 | 2020-03-31 | 山东力得汽车科技股份有限公司 | Machining clamp for disc brake bracket |
| CN211516799U (en) * | 2020-01-08 | 2020-09-18 | 山东力得汽车科技股份有限公司 | Machining clamp for disc brake bracket |
| CN111618634A (en) * | 2020-06-30 | 2020-09-04 | 浙江佛尔泰智能设备有限公司 | Automatic telescopic pressing mechanism with inner hole self-centering function |
Non-Patent Citations (1)
| Title |
|---|
| 王之栎: "机械设计综合课程设计", 机械工业出版社, pages: 61 - 62 * |
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