CN2506387Y - Interference fit pressure sensing measurer for machinery part - Google Patents
Interference fit pressure sensing measurer for machinery part Download PDFInfo
- Publication number
- CN2506387Y CN2506387Y CN 01253845 CN01253845U CN2506387Y CN 2506387 Y CN2506387 Y CN 2506387Y CN 01253845 CN01253845 CN 01253845 CN 01253845 U CN01253845 U CN 01253845U CN 2506387 Y CN2506387 Y CN 2506387Y
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- oil
- piston
- guide block
- oil cylinder
- press body
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- Expired - Fee Related
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Abstract
The utility model relates to an interference cooperating link of mechanism part. A mechanism part cooperating pressure transduce measuring installation comprises a press body, a press pole, an axis part, a hole part and a clamp. A hydro cylinder is fixed on the press body, a piston divides the hydro cylinder cavity into an upper oil cavity and a lower oil cavity, and the upper oil cavity is provided with a pressure sensor, which is connected with a simulating digital display. An upper oil valve and a lower oil valve are respectively fixed on the positions of the upper oil cavity and the lower oil cavity, an upper oil seal is arranged between the piston and the hydro cylinder, the lower end of the hydro cylinder is connected with a guide block and a bottom plate, and the bottom plate is fixed on the press body. An outer oil seal and an inner oil seal are respectively arranged between the guide block and the oil cylinder, the guide block and the press pole. The utility model can accurately control the assembly interference quantity of the axis and the hole part by controlling the reading on the simulating digital display, and can greatly improve the production efficiency and assembly quality of convenient operation, low cost and high precision.
Description
(1) technical field: the interference fit that the utility model relates to a kind of machine components connects.
(2) background technology: in Machine Design, the method that axle part and hole part take interference fit to connect, use very extensive, its principle is with the axle part of external diameter fitted position greater than the internal diameter fitted position of hole part, by pressure the axle part is pressed into the hole part, thereby reach being fixedly connected of a part and hole part, and can bear certain external force or moment of face effect, guaranteeing that axle part and hole part are unlikely becomes flexible or comes off.Adhere to specification for guaranteeing that parts cooperate, the method for taking at present is, uses common press, by the operator manually with in the axial compression hand-hole.Because this process is come controlled pressure fully by rule of thumb with feel by the operator size, so error is bigger, the actual magnitude of interference is difficult to be guaranteed.And guarantee that the machine components magnitude of interference is crucial, it will have influence on the overall work reliability of machinery, when especially the magnitude of interference is too small, axle part and hole part just may become flexible or come off, if run up machinery, high-speed diesel engine parts etc. for example are light then cause the damage of component of machine, heavy then personal injury accident can take place, bring serious hidden danger to product quality.
(3) summary of the invention: the utility model can provide the analog digital display of a kind of applying pressure sensor and connection thereof, accurately controls the magnitude of interference of part interference fit by the pressure transfer principle, makes it to reach designing requirement, guarantees the operate as normal of machine components.
The utility model is achieved in that a kind of machine components interference fit pressure sensing measurement mechanism, by the press body, depression bar, the axle part, the hole part, anchor clamps are formed, be installed with an oil cylinder on the press body, be provided with piston in the oil cylinder, piston and depression bar are connected as a single entity, piston is divided into upper oil cavitie and lower oil cavitie two parts with cylinder cavity, pressure sensor is installed in the upper oil cavitie, pressure sensor is connected with the analog digital display, upper oil cavitie and lower oil cavitie position at oil cylinder are separately installed with fuel tap and following fuel tap on one, between piston and the oil cylinder oil sealing is installed, oil cylinder lower end and guide block and bottom plate connecting, base plate are fixed on the press body, between guide block and the oil cylinder, between guide block and the depression bar, be separately installed with outer oil seal and inner oil seal.
After pressure oil enters upper oil cavitie by last fuel tap, top land is under the oil pressure effect, move down together with depression bar, and act on a part end, and the operating pressure in the upper oil cavitie, can be by the contact of pressure sensor, be directly reflected into and carry out reading on the analog digital display, so in batch process, as long as this range of readings of control, the accurate actual magnitude of interference of Control Shaft part and hole part just, thus manual big, the unmanageable problem of the magnitude of interference of error that is pressed into assembling solved, improved production efficiency and machine components assembly quality.
(4) description of drawings: Fig. 1 is a machine components interference fit pressure sensing measurement mechanism schematic diagram.
Among the figure: 1 work top, 2 press bodies, 3 oil cylinders; Fuel tap on 4,5 upper oil cavities, 6 pressure sensors, 7 pistons, oil sealing on 8,9 piston lower planes, 10 depression bars, 11 analog digital displays, 12 lower oil cavities, 13 times fuel taps, 14 outer oil seals, 15 guide blocks, 16 inner oil seals, 17 base plates, 18 big screws, 19 parts, 20 hole parts, 21 anchor clamps.
(5) specific embodiment: optimal way of the present utility model is provided by following accompanying drawing.
Referring to Fig. 1, oil cylinder 3 is fixedly installed on the press body 2, piston 7 and depression bar 10 are connected as a single entity, can slide up and down along the endoporus of oil cylinder 3 and guide block 15, piston 7 is divided into upper oil cavitie 5 and lower oil cavitie 12 with cylinder cavity, oil sealing 8 is installed between piston 7 and the oil cylinder, the lower end of oil cylinder 3 connects with guide block 15 and base plate 17, base plate is fixed on the press body 2 by big screw 18, between oil cylinder 3 and the guide block 15 outer oil seal 14 is installed, between guide block 15 and the depression bar 10 inner oil seal 16 is installed, at upper oil cavitie 5 and lower oil cavitie 12 positions, be separately installed with fuel tap 4 and following fuel tap 13 on one, last fuel tap 4 and following fuel tap 13 are solenoid controlled directional control valve, and pressure oil can two-wayly pass through, and a pressure sensor 6 is installed in the upper oil cavitie 5, its contact stretches into upper oil cavitie 5, pressure sensor 6 directly is connected with analog digital display 11, piston 7 and depression bar 10, axle part 19, hole part 20 and keeps vertical with anchor clamps 21 end faces that are fixed in press body 2 and work top 1 on same center line.The stroke of piston 7 is controlled by travel switch, when pressing downing switch, effect by solenoid controlled directional control valve, pressure oil enters upper oil cavitie 5 from last fuel tap 4, promoting piston 7 moves down, axle part 19 is under the effect of depression bar 10, be pressed into hole part 20, this moment, lower oil cavitie 12 interior oil flowed back to fuel tank from following fuel tap 13, when pressing up switch, by the effect of solenoid controlled directional control valve, pressure oil enters lower oil cavitie 12 from following fuel tap 13, promote to move on the piston 7, this moment, upper oil cavitie 5 interior pressure oils flowed back to fuel tank from last fuel tap 4.The stroke of piston 7 is more than or equal to axle part 19 and the required axial length that is pressed into of hole part 20 interference fit size section.Piston 7 is when bottom dead center position, and piston lower plane 9 is positioned at the top of fuel tap 13 oilhole top edges down.When axle part 19 presses down hand-hole part 20 in depression bar 10 effects, oil pressure in the upper oil cavitie 5 can be transformed into reading on the analog digital display 11 by pressure sensor 6, control this reading within the specific limits, just can the Control Shaft part 19 with hole part 20 be pressed into the assembling magnitude of interference.When press body 2 is 2.5 tons of common presses, piston 7 diameters are 63 millimeters of φ, and depression bar 10 diameters are 50 millimeters of φ, and input pressure is 8Mpa, and piston 7 end face pressure reach 290kgf/cm
2Adopt E-ATR-5/400/1 type pressure sensor 6, the IMP2062 pattern is intended digital display 11, fitted position at axle part 19 and hole part 20 is 8 millimeters of φ, can accurately guarantee under the batch process situation, the magnitude of interference that interference fit connects adheres to specification in (0.015～0.02) millimeter scope fully, thereby it is safe and reliable to guarantee that the machine components interference fit connects.
This apparatus structure is simple, and is easy to operate, low cost of manufacture, and the certainty of measurement height is applicable to that every profession and trade has the magnitude of interference control survey of the machine components of interference fit requirement.
Claims (1)
1. machine components interference fit pressure sensing measurement mechanism, by press body (2), depression bar (10), axle part (19), hole part (20), anchor clamps (21) are formed, it is characterized in that being installed with on the press body (2) oil cylinder (3), be provided with a piston (7) in the oil cylinder (3), piston (7) is connected as a single entity with depression bar (10), piston (7) is divided into upper oil cavitie (5) and lower oil cavitie (12) two parts with oil cylinder (3) inner chamber, pressure sensor (6) is installed in the upper oil cavitie (5), pressure sensor (6) is connected with analog digital display (11), upper oil cavitie (5) and lower oil cavitie (12) position in oil cylinder (3) are separately installed with fuel tap on (4) and following fuel tap (13), between piston (7) and the oil cylinder (3) oil sealing (8) is installed, oil cylinder (3) lower end connects with guide block (15) and base plate (17), base plate (17) is fixed on the press body (2) by big screw (18), between guide block (15) and the oil cylinder (3), between guide block (15) and the depression bar (10), be separately installed with outer oil seal (14) and inner oil seal (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253845 CN2506387Y (en) | 2001-09-24 | 2001-09-24 | Interference fit pressure sensing measurer for machinery part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253845 CN2506387Y (en) | 2001-09-24 | 2001-09-24 | Interference fit pressure sensing measurer for machinery part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2506387Y true CN2506387Y (en) | 2002-08-21 |
Family
ID=33663273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253845 Expired - Fee Related CN2506387Y (en) | 2001-09-24 | 2001-09-24 | Interference fit pressure sensing measurer for machinery part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2506387Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336629C (en) * | 2004-09-15 | 2007-09-12 | 西北工业大学 | Clamp head capable of measuring tension |
| CN101733661B (en) * | 2008-11-13 | 2011-10-05 | 余敏守 | Clamping device for measuring thickness of workpiece |
| CN102778352A (en) * | 2012-07-27 | 2012-11-14 | 三一重机有限公司 | Shrink range detection system and detection method |
| CN102889956A (en) * | 2012-10-24 | 2013-01-23 | 滁州市庆福机电制造有限公司 | Shaft and hole interference fit loosening force detecting device |
| CN104802444A (en) * | 2015-04-20 | 2015-07-29 | 李明科 | Assembly type press machine displayer |
| CN106425452A (en) * | 2015-08-06 | 2017-02-22 | 波音公司 | Fastening system with vacuum alignment tool and methods of operating same |
-
2001
- 2001-09-24 CN CN 01253845 patent/CN2506387Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336629C (en) * | 2004-09-15 | 2007-09-12 | 西北工业大学 | Clamp head capable of measuring tension |
| CN101733661B (en) * | 2008-11-13 | 2011-10-05 | 余敏守 | Clamping device for measuring thickness of workpiece |
| CN102778352A (en) * | 2012-07-27 | 2012-11-14 | 三一重机有限公司 | Shrink range detection system and detection method |
| CN102778352B (en) * | 2012-07-27 | 2015-10-28 | 三一重机有限公司 | Magnitude of interference detection system, magnitude of interference detection method |
| CN102889956A (en) * | 2012-10-24 | 2013-01-23 | 滁州市庆福机电制造有限公司 | Shaft and hole interference fit loosening force detecting device |
| CN104802444A (en) * | 2015-04-20 | 2015-07-29 | 李明科 | Assembly type press machine displayer |
| CN106425452A (en) * | 2015-08-06 | 2017-02-22 | 波音公司 | Fastening system with vacuum alignment tool and methods of operating same |
| CN106425452B (en) * | 2015-08-06 | 2020-07-17 | 波音公司 | Fastening system with vacuum alignment tool and method of operating the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI PUDONG YIWEI FUEL INJECTION CO., LTD. Free format text: FORMER OWNER: SHANGHAI DIESEL ENGINE CO., LTD. Effective date: 20040416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040416 Address after: 200129 No. 2748, Pudong Avenue, Shanghai Patentee after: Shanghai Pudong Yiwei Fuel Injection Co., Ltd. Address before: 200432 No. 2636, military road, Shanghai Patentee before: Shanghai Diesel Engine Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |