CN201020623Y - Internal-bulging type hydraulic cylinder for positioning engine cylinder - Google Patents
Internal-bulging type hydraulic cylinder for positioning engine cylinder Download PDFInfo
- Publication number
- CN201020623Y CN201020623Y CNU200620016075XU CN200620016075U CN201020623Y CN 201020623 Y CN201020623 Y CN 201020623Y CN U200620016075X U CNU200620016075X U CN U200620016075XU CN 200620016075 U CN200620016075 U CN 200620016075U CN 201020623 Y CN201020623 Y CN 201020623Y
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- cylinder body
- piston rod
- engine cylinder
- internal
- type hydraulic
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- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic cylinder with inner expansion used to position cylinder body of engine, which comprises a cylinder body which can be secured on worktable of machining tool, a piston inside the cylinder body and a piston rod secured and connected on the piston, wherein, a retaining ring is arranged around the piston and secured and connected on the cylinder body, which enables the piston rod to slide inside the retaining ring. Meanwhile, a chute whose cross-section shape is similar to shape of Chinese character ''eight'' are arranged on free end of the piston rod, and two slip holes are positioned on the wall of the retaining ring corresponding to the chute whose cross-section shape is similar to shape of Chinese character ''eight''. Inside the slip hole, a sliding push rod is arranged. A guide block which can be slid and clamped on the chute is constructed at one end of the push rod, moreover, a press head which contacting and supporting the hole wall on the cylinder body of the engine is secured on the other end of the push rod. Therefore, by selecting three or four utility models according to quantity of holes on the cylinder body of the engine for accurate position of the cylinder body of the engine, bottom surface of the cylinder body of the engine can be machined and other machining operations can be completed one time.
Description
Technical field
The utility model relates to a kind of positioning fixture, especially relates to a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body.
Background technology
The machining accuracy of engine cylinder-body is to influence that engine can run well and key element, the especially machining accuracy in engine cylinder-body cylinder hole of performance, directly has influence on the motion acting situation of engine piston.Therefore, engine cylinder-body is being added man-hour, it is one of effective measures that guarantee machining accuracy that engine cylinder-body is accurately located.Usually adopt the knockdown engine cylinder-body positioning fixture of plane and two pits that engine cylinder-body is positioned at present, this positioning fixture comprises the bearing on the workbench that can be fixed on process equipment, offer first locating hole and second locating hole of perforation on this bearing, the centre-to-centre spacing of this first locating hole and this second locating hole equals the centre-to-centre spacing in first hole and second hole of engine; One end of this first locating hole is fixed with end cap, is equipped with the depression bar in first hole that can wear engine cylinder-body in this first locating hole; One end of this depression bar is fixed on this end cap, and the other end stretches out this first locating hole and is bolted with setscrew nut; Between this end cap and this setscrew nut, be arranged with taper pin and locating shim on this depression bar; The bigger end of this taper pin radial dimension is positioned at this first locating hole, and its radial dimension stretches out this first locating hole than small end and can replace the end of hole wall in first hole of engine, and this locating shim can be replaced the other end of hole wall in first hole of engine; This second locating hole is inserted with latch, and this second locating hole and this latch form matched in clearance, and this latch can insert in second hole of engine cylinder-body and form matched in clearance, engine cylinder-body is positioned on the workbench of process equipment like this.This knockdown engine cylinder-body positioning fixture is not high to the positioning accuracy of engine cylinder-body, add man-hour when carrying out whole face to the bottom surface of engine cylinder-body, elder generation is wherein on two holes locating engine to engine cylinder-body with alignment pin and depression bar cutting ferrule, process a part of area, then with alignment pin and depression bar cutting ferrule to two holes in addition of engine cylinder-body, again remainder is processed, like this complicated operation, and easily cause deviations, influence machining accuracy.
The utility model content
The technical problems to be solved in the utility model provides a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body easy, easy to process of locating.
For solving the problems of the technologies described above, a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model, comprise the cylinder body that can be fixed on the process equipment workbench, be located at the piston in this cylinder body and be fixedly connected on piston rod on this piston, wherein, all sides of described piston rod are provided with fixed cover, and this fixed cover is fixedly connected on this piston rod can be slided in this fixed cover; Offer shaft section on the free end of this piston rod and become the chute of splayed configuration, offer two slide openings on this fixed cover and the corresponding wall of this splayed configuration chute, be provided with slidably push rod in this slide opening, one end of this push rod is formed with the guide pad that slidably may be stuck on this splayed configuration chute, is fixed with the pressure head that can replace the hole wall on the engine cylinder-body on the other end of this push rod.
As a kind of improvement of the present utility model, wherein, be fixedly connected with the lead of wedge shape on the described fixed cover away from an end of described cylinder body.
As a kind of improvement of the present utility model, wherein, be fixedly connected with the lead of wedge shape on the described fixed cover away from an end of described cylinder body; Offer the lubricating oil injection channel that is communicated with described fixed cover inner chamber on this lead.
As a kind of improvement of the present utility model, wherein, described fixed cover and described cylinder body are one-body molded.
As a kind of improvement of the present utility model, wherein, offer the piston rod installing hole on the described piston; The stiff end of described piston rod is notch cuttype, and the less position of its radial dimension is positioned at the end of this piston rod and passes this piston rod installing hole and is bolted with two slim nuts; The position that the radial dimension of this piston rod is less and this piston rod installing hole form and are sealed and matched.
As a kind of improvement of the present utility model, wherein, described push rod is perpendicular to described piston rod.
As a kind of improvement of the present utility model, wherein, the angle of described splayed configuration chute is that 60 degree are to 72 degree.
As a kind of improvement of the present utility model, wherein, the angle of described splayed configuration chute is 60 degree.
The utility model compared with prior art, a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model, the stretching motion of piston rod makes guide pad slide along the splayed configuration chute on the piston rod, thereby drive push rod perpendicular to the piston rod stretching motion, make this pressure head replace that hole wall on the engine cylinder-body is realized the location engine cylinder body or the hole wall that breaks away from the engine cylinder-body realizes unclamping engine cylinder-body, quantity according to the hole on the engine cylinder-body, select three or four the utility model for use, just can process the bottom surface of engine cylinder-body and the process operation that carries out other once accurately to the engine cylinder-body location.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is that a kind of master who is used for the internal-expansion type hydraulic cylinder of location engine cylinder body of the utility model looks the sectional structure schematic diagram.
Fig. 2 is the main TV structure schematic diagram of the push rod of a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model.
Fig. 3 is that the A-A of Fig. 2 is to cutaway view.
Fig. 4 is the perspective view of the push rod of a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model.
Fig. 5 is the perspective view of the piston rod of a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model.
Fig. 6 is that the master of the piston rod of a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model looks the broken section structural representation.
The specific embodiment
See also Fig. 1, a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body of the utility model comprises cylinder body 1, the piston rod 2 that can be fixed on the process equipment workbench, is located at piston 3, lead 4, push rod 5 and pressure head 6 in this cylinder body 1.
Please consult Fig. 1 to Fig. 6 simultaneously, offer piston rod installing hole 30 on the described piston 3; The stiff end 21 of described piston rod 2 is notch cuttype, and the less position of its radial dimension is positioned at the end of this piston rod 2 and passes this piston rod installing hole 30 and is bolted with two slim nuts 7; The position that the radial dimension of this piston rod 2 is less and this piston rod installing hole 30 form and are sealed and matched; All sides of described piston rod 2 are provided with fixed cover 8, and described fixed cover 8 and described cylinder body 1 are one-body molded, and this piston rod 2 can slide in this fixed cover 8; Offering shaft section on the free end 22 of this piston rod 2, to become the chute 23 of splayed configuration, the angle of this splayed configuration chute 23 be 60 degree; This fixed cover 8 with these splayed configuration chute 23 corresponding walls on offer two slide openings 80, be provided with slidably push rod 5 in this slide opening 80, one end of this push rod 5 is formed with the guide pad 51 that is stuck in slidably on this splayed configuration chute 23, is bolted with the pressure head 6 that can replace the hole wall on the engine cylinder-body on the other end of this push rod 5; This push rod 5 is perpendicular to this piston rod 2; The stretching motion of piston rod 2 makes this guide pad 51 slide along this splayed configuration chute 23, thereby drive this push rod 5 perpendicular to these piston rod 2 stretching motions, make this pressure head 6 replace that hole wall on the engine cylinder-body is realized the location engine cylinder body or the hole wall that breaks away from the engine cylinder-body realizes unclamping engine cylinder-body.For this fixed cover 8 can be snapped in the hole on the engine cylinder-body at an easy rate, on this fixed cover 8, be bolted with the lead 4 of wedge shape, offer the lubricating oil injection channel 40 that is communicated with the inner chamber of described fixed cover 8 on the described lead away from an end of described cylinder body 1.
Certainly, this described fixed cover 8 also can weld, be spirally connected or mode such as riveted joint is fixedly connected on this cylinder body 1; The angle of this splayed configuration chute 23 is not limited to 60 degree, can be 60 degree to 72 degree; This pressure head 6 also can be riveted, welding, mode such as one-body molded are fixedly connected on the other end of this push rod 5; Modes such as this lead 4 also can be riveted, welding are fixedly connected on this fixed cover 8 on the end away from described cylinder body 1.
Claims (8)
1. internal-expansion type hydraulic cylinder that is used for the location engine cylinder body, comprise the cylinder body that can be fixed on the process equipment workbench, be located at the piston in this cylinder body and be fixedly connected on piston rod on this piston, it is characterized in that: all sides of described piston rod are provided with fixed cover, and this fixed cover is fixedly connected on this piston rod can be slided in this fixed cover; Offer shaft section on the free end of this piston rod and become the chute of splayed configuration, offer two slide openings on this fixed cover and the corresponding wall of this splayed configuration chute, be provided with slidably push rod in this slide opening, one end of this push rod is formed with the guide pad that is stuck in slidably on this splayed configuration chute, is fixed with the pressure head that can replace the hole wall on the engine cylinder-body on the other end of this push rod.
2. a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body according to claim 1 is characterized in that: the lead that is fixedly connected with wedge shape on the described fixed cover away from an end of described cylinder body.
3. a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body according to claim 2 is characterized in that: offer the lubricating oil injection channel that is communicated with described fixed cover inner chamber on the described lead.
4. a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body according to claim 1, it is characterized in that: described fixed cover and described cylinder body are one-body molded.
5. a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body according to claim 1 is characterized in that: offer the piston rod installing hole on the described piston; The stiff end of described piston rod is notch cuttype, and the less position of its radial dimension is positioned at the end of this piston rod and passes this piston rod installing hole and is bolted with two slim nuts; The position that the radial dimension of this piston rod is less and this piston rod installing hole form and are sealed and matched.
6. according to each described a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body in the claim 1 to 5, it is characterized in that: described push rod is perpendicular to described piston rod.
7. according to each described a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body in the claim 1 to 5, it is characterized in that: the angle of described splayed configuration chute is that 60 degree are to 72 degree.
8. according to each described a kind of internal-expansion type hydraulic cylinder that is used for the location engine cylinder body in the claim 1 to 5, it is characterized in that: the angle of described splayed configuration chute is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620016075XU CN201020623Y (en) | 2006-11-29 | 2006-11-29 | Internal-bulging type hydraulic cylinder for positioning engine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620016075XU CN201020623Y (en) | 2006-11-29 | 2006-11-29 | Internal-bulging type hydraulic cylinder for positioning engine cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201020623Y true CN201020623Y (en) | 2008-02-13 |
Family
ID=39088030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620016075XU Expired - Lifetime CN201020623Y (en) | 2006-11-29 | 2006-11-29 | Internal-bulging type hydraulic cylinder for positioning engine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201020623Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585172B (en) * | 2009-04-20 | 2011-05-25 | 无锡烨隆精密机械有限公司 | Multi-tooth rod clamp for case processing |
| CN104275609A (en) * | 2014-09-16 | 2015-01-14 | 芜湖市华益阀门制造有限公司 | Inner hole positioning clamp |
| CN105014449A (en) * | 2015-07-31 | 2015-11-04 | 昆明云内动力股份有限公司 | Fixture assembly for machining and positioning engine cylinder block |
| CN108145493A (en) * | 2018-02-28 | 2018-06-12 | 瑞庆汽车发动机技术有限公司 | A kind of engine cylinder body wedge shape centralizer |
| CN109396907A (en) * | 2018-11-05 | 2019-03-01 | 刘剑 | Hydraulic expansion device |
| CN109396874A (en) * | 2018-11-07 | 2019-03-01 | 安庆工匠智能化设备制造有限公司 | A kind of elasticity internal expansion type automatic fixture |
| CN109940365A (en) * | 2019-03-27 | 2019-06-28 | 燕山大学 | A kind of air heave type bearing press |
| CN110732901A (en) * | 2019-10-11 | 2020-01-31 | 无锡瑞真精机股份有限公司 | Positioning mechanism for rough machining of engine cylinder body |
| CN113441932A (en) * | 2021-06-03 | 2021-09-28 | 上海天永智能装备股份有限公司 | Engine cylinder sleeve pressure head device with automatic quick-change and novel grabbing functions |
| CN114012644A (en) * | 2017-10-17 | 2022-02-08 | 株式会社太科 | Part positioning jig and part positioning device using same |
-
2006
- 2006-11-29 CN CNU200620016075XU patent/CN201020623Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585172B (en) * | 2009-04-20 | 2011-05-25 | 无锡烨隆精密机械有限公司 | Multi-tooth rod clamp for case processing |
| CN104275609A (en) * | 2014-09-16 | 2015-01-14 | 芜湖市华益阀门制造有限公司 | Inner hole positioning clamp |
| CN104275609B (en) * | 2014-09-16 | 2016-04-13 | 芜湖市华益阀门制造有限公司 | A kind of fixture for locating inner hole |
| CN105014449A (en) * | 2015-07-31 | 2015-11-04 | 昆明云内动力股份有限公司 | Fixture assembly for machining and positioning engine cylinder block |
| CN105014449B (en) * | 2015-07-31 | 2017-07-25 | 昆明云内动力股份有限公司 | A kind of fixture assembly for engine cylinder-body locating and machining |
| CN114012644A (en) * | 2017-10-17 | 2022-02-08 | 株式会社太科 | Part positioning jig and part positioning device using same |
| CN108145493A (en) * | 2018-02-28 | 2018-06-12 | 瑞庆汽车发动机技术有限公司 | A kind of engine cylinder body wedge shape centralizer |
| CN109396907A (en) * | 2018-11-05 | 2019-03-01 | 刘剑 | Hydraulic expansion device |
| CN109396874B (en) * | 2018-11-07 | 2021-05-14 | 安庆工匠智能化设备制造有限公司 | Elastic internal expansion type automatic clamp |
| CN109396874A (en) * | 2018-11-07 | 2019-03-01 | 安庆工匠智能化设备制造有限公司 | A kind of elasticity internal expansion type automatic fixture |
| CN109940365A (en) * | 2019-03-27 | 2019-06-28 | 燕山大学 | A kind of air heave type bearing press |
| CN109940365B (en) * | 2019-03-27 | 2020-05-08 | 燕山大学 | Physiosis formula bearing pressure equipment machine |
| CN110732901A (en) * | 2019-10-11 | 2020-01-31 | 无锡瑞真精机股份有限公司 | Positioning mechanism for rough machining of engine cylinder body |
| CN113441932A (en) * | 2021-06-03 | 2021-09-28 | 上海天永智能装备股份有限公司 | Engine cylinder sleeve pressure head device with automatic quick-change and novel grabbing functions |
| CN113441932B (en) * | 2021-06-03 | 2024-06-04 | 上海天永智能装备股份有限公司 | Automatic quick-change and novel engine cylinder sleeve pressure head device with grabbing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080213 |
|
| EXPY | Termination of patent right or utility model |