CN102172903B - Hydraulic chuck device applying tension and pressure - Google Patents
Hydraulic chuck device applying tension and pressure Download PDFInfo
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- CN102172903B CN102172903B CN 201110041960 CN201110041960A CN102172903B CN 102172903 B CN102172903 B CN 102172903B CN 201110041960 CN201110041960 CN 201110041960 CN 201110041960 A CN201110041960 A CN 201110041960A CN 102172903 B CN102172903 B CN 102172903B
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- chuck
- inner casing
- piston
- olecranon
- shell
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Abstract
The invention discloses a hydraulic chuck device applying tension and pressure, which is characterized in that a base is relatively equipped with a first hydraulic chuck assembly and a second hydraulic chuck assembly, each hydraulic chuck assembly mainly comprises a chuck shell, an olecranal chuck and a piston cylinder, and the chuck shell and the piston cylinder are fixedly connected by a screw; and the olecranal chuck is arranged in front of a piston chuck channel of the chuck shell, and the tail of the olecranal chuck is connected with the front part of a piston rod by an axle pin. In the invention, an inner layer and an outer layer of hydraulic cylinders are arranged at one end of the olecranal chuck, so that quick switching of stretching, compressing or stretching and compressing on test samples can be realized, and the standardized requirement for processing the test samples can be realized by precisely and quickly controlling force through a PLC (programmable logic controller) system, a force sensor and a displacement sensor.
Description
Technical field
The invention belongs to field of mechanical technique, particularly a kind of hydraulic chuck device that applies tension force and pressure.
Background technology
At present, in actual industrial production, no matter main equipment or mini-plant, every machine driving aspect that relates to all might be run into requirement workpiece or sample are clamped and apply the situation of tension force or pressure, and require chuck can Quick-clamped, fast discharging; Especially under laboratory condition, utilize simulation test machine to material carry out simulation test be research material technological process, physical property and structure property Main Means, and have a lot of testing machine requirements that sample is carried out Quick-clamped, fast discharging and applies tension force or pressure, to power accurately and fast control to be arranged.The most function singlenesses of experimental machine in the laboratory, such as doing tension test the stretching experiment machine arranged, do compression test the compression experiment machine is arranged, although the experimental machine that has can stretch and can compress, and also needs to change chuck, also different with the shape need of compression sample to tensile sample; For the experiment of similar research coating, after sample is finished heating, also need to be within the extremely short time fast discharging sample, carry out next step experiment.Therefore developing a kind of abduction device that can carry out fast clamping unloading conversion and Compression and Expansion conversion is present urgent problem.
Summary of the invention
Can not possess simultaneously the problem that applies tension force and pressure for prior art, the invention provides a kind of hydraulic chuck device that applies tension force and pressure, can realize fast clamp unloading conversion and Compression and Expansion conversion to sample.
The hydraulic chuck device that applies tension force and pressure of the present invention comprises pedestal and two cover hydraulic chuck assemblies, wherein relatively be equipped with the first hydraulic chuck assembly and the second hydraulic chuck assembly on the pedestal, every cover hydraulic chuck assembly mainly is comprised of chuck shell, olecranon chuck and piston cylinder, and chuck shell and piston cylinder are connected by screw fixing; The olecranon chuck is equipped on the piston cartridge passage front portion of chuck shell, and olecranon chuck afterbody all is connected by bearing pin with the front portion of piston rod.
Piston cylinder in the said apparatus is comprised of inner casing, outer shell, inner casing base, piston rod and piston; Be respectively equipped with annular inner convex platform and annular outer platform on the inner casing inner and outer wall, outer cylinder sheath forms two outer shell oil pockets outside inner casing and in the both sides of annular outer platform, and the outer shell sidewall is provided with two outer oilholes and is communicated with two outer shell oil pockets respectively; Inner casing one end is fixed on the inner casing base, inwall is connected with piston seal, piston and piston rod are structure as a whole, piston rod and annular inner convex platform are tightly connected, interior cylinder interior in the both sides of piston forms two inner casing oil pockets, and the inner casing sidewall is provided with two interior oilholes and is communicated with two inner casing oil pockets respectively; In the partial insertion piston cartridge passage of piston rod outside annular inner convex platform, the piston rod top is provided with a pin shaft hole, and bearing pin inserts the pin shaft hole of piston rod and the pin shaft hole of olecranon chuck simultaneously, the inwall of the front end contact chuck shell of olecranon chuck; Two outer shells are fixed on the pedestal simultaneously.
The end that the chuck shell is connected with piston cylinder in the said apparatus is the rear end, is front end away from an end of piston cylinder.
In two inner casing oil pockets of said apparatus, the inner casing oil pocket that is connected with the inner casing base is rear interior oil pocket, and the inner casing oil pocket that contacts with annular inner convex platform is front interior oil pocket.
In two outer shell oil pockets of said apparatus, being front outer oil cavity near the outer shell oil pocket of olecranon chuck direction, is rear outer oil cavity away from the outer shell oil pocket of olecranon chuck direction.
Two olecranon chucks are oppositely arranged in the said apparatus.
On the inner casing of the cover of two in the said apparatus hydraulic chuck assembly displacement transducer is set respectively, the loop bar of displacement transducer is fixed on the inner casing, and the core bar of displacement transducer is fixed on the pedestal.
The piston cartridge passage is communicated with the two ends of chuck shell in the said apparatus, bearing pin passage and piston cartridge channel connection, be provided with two collet slots on the sidewall of piston channel front end, the olecranon chuck is positioned at collet slot, olecranon chuck and collet slot are wedge shape, when olecranon chuck forward end moves, be subjected to the collet slot extruding that the olecranon chuck is tightened up and clamp sample.
Gapped between chuck shell and the annular inner convex platform in the said apparatus.
Wherein inner casing and the chuck shell of a cover hydraulic chuck assembly are bolted in the said apparatus; Be provided with two power sensors between the inner casing of another set of hydraulic chuck assembly and the chuck shell, the two ends of power sensor are bolted with chuck shell and inner casing respectively.
The using method that applies the hydraulic chuck device of tension force and pressure of the present invention is:
1, interior oilhole and the outer oilhole with the hydraulic chuck assembly is communicated with hydraulic pump control system, and two cover hydraulic joint assemblies connect simultaneously a hydraulic pump control system or connect respectively a hydraulic pump control system;
2, pending sample is placed between two olecranon chucks;
3, by the oil pocket of hydraulic pump control system control two cover hydraulic chuck assemblies, make the oil pressure of rear outer oil cavity greater than the oil pressure of front outer oil cavity, promote two inner casings and olecranon chuck and move to the sample direction;
4, when the two ends of sample are between two groups of olecranon chucks, the oil pressure of the rear interior oil pocket by hydraulic pump control system control two cover hydraulic chuck assemblies is greater than the oil pressure of front interior oil pocket, pushing piston and piston rod anconad chuck direction move, piston rod drive olecranon chuck moves to the direction of sample, tightened up by the squeezing action of collet slot inwall, sample is clamped;
5, when needs compress sample, repeat the action of step 3, promote two olecranon chucks and move to the sample direction, sample is compressed;
6, when needs stretch sample, the oil pressure of the front outer oil cavity by oil pump systems control two cover hydraulic chuck assemblies promotes two inner casings and olecranon chuck and moves to the direction away from sample greater than the oil pressure of rear outer oil cavity, and sample is stretched;
7, when needs when fast conversion is to the stretching of sample and compressed action, by the oil pressure of two annular outer platform two ends oil pockets of oil pump systems control conversion, can realize the quick switching that stretches and compress;
8, in the time need to accurately controlling the tension force of compression and stretching, the power sensor is connected with the PLC control system by signal transducting system, displacement transducer is connected with the PLC control system by signal transducting system, again hydraulic pump control system is connected by signal transducting system with the PLC control system; The oil pressure that overlaps two outer oil cavities of hydraulic chuck assemblies by PLC control system control two changes, and then accurately controls tensile force and compression stress to sample.
Device of the present invention can be arranged in the galvanizing simulated experiment machine, and adopt the mode of contact resistance heated that sample is heated, concrete grammar is: cut off with felt pad in the part that the olecranon chuck contacts with inner casing, fixedly the bolt of olecranon chuck and inner casing cuts off olecranon chuck and bolt with felt pad, between the pin shaft hole on bearing pin and the inner casing, cut off with felt pad simultaneously, two chuck shells are connected an electrode by steel foil separately, two electrodes are communicated with the two ends of power supply respectively, again power supply are connected with the PLC control system by signal transducting system; In order to improve the conductive effect between the electrode, between olecranon chuck and chuck shell, copper coin is set; Be controlled between two chucks and the sample by power supply during use and form the loop, by the temperature of sample in the PLC control system control heating process.
The present invention is by having assembled inside and outside two-layer hydraulic cylinder at olecranon chuck one end, can realize stretching, the compression to sample or the quick conversion that stretches and compress, and can to power accurately and fast control be arranged by PLC control system and power sensor, displacement transducer, realize the standardization requirement of sample processing, for cylinder sample, no matter be to stretch or compression for example, sample be processed into a specification get final product, greatly improve tensile and compression test efficient, save experimentation cost.
The hydraulic chuck device range of application that applies tension force and pressure of the present invention is very extensive, for example in traditional galvanizing simulation test machine, owing to can not carry out accurately careful control to tension force, sample generation plate shape wooden dipper Qu Wenti after the heating is its great technological difficulties, adopts device of the present invention can overcome plate shape wooden dipper Qu Wenti; Device of the present invention can also be used for mechanism's hand-operated gear of automatic assembly line in addition.
Description of drawings
Fig. 1 is the hydraulic chuck device plan structure schematic diagram that applies tension force and pressure in the embodiment of the invention 1;
Fig. 2 is the hydraulic chuck device plan structure schematic diagram that applies tension force and pressure in the embodiment of the invention 2;
Among the figure 1, pedestal, 2, the I piston rod, 3, the I piston, 4, the I inner casing, 4-1, I annular outer platform, 4-2, I annular inner convex platform, 5, I outer shell sidewall, 6, plate behind the I outer shell, 7, I outer shell header board, 8, I inner casing base, 9, oil pocket in after the I, 10, oil pocket in before the I, 11, outer oil cavity after the I, 12, outer oil cavity before the I, 13, oilhole in before the I, 14, oilhole in after the I, 15, outer oilhole after the I, 16, outer oilhole before the I, 17, I chuck shell, 18, I olecranon chuck, 19, the I bearing pin, 20, I bearing pin passage, 21, the I bearing pin is removed passage, 22, the I felt pad, 23, the displacement transducer loop bar, 24, the displacement transducer core bar, 25, the I caging bolt, 26, the I set bolt, 27, I piston cartridge passage, 30, sample, 31, the I hydraulic pump control system, 32, the II hydraulic pump control system, 33, the PLC control system, 34, the I felt pad, 202, the II piston rod, 203, the II piston, 204, the II inner casing, 204-1, I annular outer platform, 204-2, I annular inner convex platform, 205, II outer shell sidewall, 206, plate behind the II outer shell, 207, II outer shell header board, 208, the II base, 209, oil pocket in after the II, 210, oil pocket in before the II, 211, outer oil cavity after the II, 212, outer oil cavity before the II, 213, oilhole in before the II, 214, oilhole in after the II, 215, outer oilhole after the II, 216, outer oilhole before the II, 217, II chuck shell, 218, II olecranon chuck, 219, the II bearing pin, 220, II bearing pin passage, 221, the II bearing pin is removed passage, 222, the II felt pad, 225, the II caging bolt, 226, the II set bolt, 227, II piston cartridge passage, 228, the power sensor, 229, power sensor bolt, 234, the II felt pad.
The specific embodiment
The power sensor that adopts in the embodiment of the invention is the poly-RSSO5 of the people electronics scientific technology co power sensor in Shanghai;
The displacement transducer that adopts in the embodiment of the invention is German NOVOTECHINK-TS displacement transducer.
Embodiment 1
Apply the hydraulic chuck device structure of tension force and pressure as shown in Figure 1, pedestal 1 is I # and II # hydraulic chuck assembly fixedly, the outer shell of I # chuck component by I outer shell sidewall 5, I outer shell after plate 6 and I outer shell header board 7 form, plate 6 is connected with I outer shell header board and is connected with 4 slipper seals of I inner casing behind the I outer shell, and I outer shell sidewall 5 is connected with I annular outer platform 4-1 slipper seal;
I inner casing 4 bottoms are fixed on the I inner casing base 8, and I inner casing base 8 is provided with I caging bolt 25; I caging bolt 25 is threaded connection with I inner casing base 8, in the front end of I caging bolt 25 inserts after the I of I inner casing 4 inside in the oil pocket 9;
I inner casing 4 inwalls are connected with 3 slipper seals of I piston, and I piston 3 is structure as a whole with I piston rod 2, and the sidewall of I piston rod 2 is connected with I annular inner convex platform 4-2 slipper seal;
I piston rod 2 inserts in the I piston cartridge passage 27, and I piston rod 2 front ends are provided with pin shaft hole, and I bearing pin 19 inserts the pin shaft hole of I piston rod 2 and the pin shaft hole of I olecranon chuck 18 simultaneously;
I olecranon chuck 18 is positioned at I piston cartridge passage 27, the inwall of I olecranon chuck 18 front end in contact I chuck shells 17;
Insert in the I inner casing 4 rear end of I chuck shell 17; Also be provided with 21, two passages of I bearing pin passage 20 and I bearing pin releasing passage on the I chuck shell 17 and all be communicated with I piston cartridge passage 27, gapped between I chuck shell 17 and the I annular inner convex platform 4-2;
The front end of I inner casing 4 is fixed together by I set bolt 26 and I chuck shell 17, and the rear portion of I chuck shell 17 is inserted in the I inner casing 4;
The front interior oil pocket 10 of oil pocket 9 and I is respectively in the both sides of I piston 3 in after the I of I inner casing 4 inside, and interior oil pocket 9 is communicated with interior oilhole 14 after the I after the I, and interior oil pocket 10 is communicated with the front interior oilhole 13 of I before the I;
A displacement transducer is set on the I inner casing 4, comprises displacement transducer loop bar 23 and displacement transducer core bar 24, displacement transducer loop bar 23 is fixed on the I inner casing 4, and displacement transducer core bar 24 is fixed on the pedestal 1;
I piston cartridge passage 27 is communicated with the two ends of I chuck shell 17, I bearing pin passage 20 and I bearing pin are removed passage 21 and are communicated with I piston cartridge passage 27 simultaneously, and I bearing pin passage 20 and I bearing pin are removed both deads in line of passage 21, be provided with two collet slots on the sidewall of I piston cartridge passage 27 front ends, I olecranon chuck 18 is positioned at collet slot, I olecranon chuck 18 and collet slot are wedge shape, when I olecranon chuck 18 forward end move, be subjected to the collet slot extruding that I olecranon chuck 18 is tightened up and clamp sample;
The bearing pin passage is used for bearing pin is placed in the pin shaft hole of piston rod and olecranon chuck, when bearing pin is removed passage and is used for bearing pin to be taken out from olecranon chuck and inner casing, inserts in the bearing pin contact channels by bar-shaped object, and bearing pin is ejected;
The difference of II # chuck component and I # chuck component is: displacement transducer is not set on the II inner casing 204, be provided with two power sensors 228 between II chuck shell 217 and the II inner casing 204, the two ends of power sensor 228 are fixed on II inner casing 204 and the II olecranon chuck 218 by II set bolt 226 and power sensor bolt 229 respectively, and the rear portion of II chuck shell 217 is inserted in the II inner casing 204; Remainder II # chuck component is identical with the structure of I # chuck component;
The I outer shell sidewall 5 of the I # chuck component in two above-mentioned chuck components and the II outer shell sidewall 205 of II # chuck component are fixed on the pedestal 1 simultaneously by bolt, and I olecranon chuck 18 and II olecranon chuck 218 are oppositely arranged;
Displacement transducer with are connected a power sensor and all are connected with PLC control system 33 by signal transducting system, two interior oilholes and two outer oilholes of II # chuck component pass through pipeline communication with II hydraulic pump control system 32 simultaneously, two outer oilholes and two interior oilholes of I # chuck component pass through pipeline communication with I hydraulic pump control system 31 simultaneously, and two hydraulic pump control systems are connected with PLC control system 33 by signal transducting system;
Method of work is:
1, interior oilhole and the outer oilhole with the hydraulic chuck assembly is communicated with hydraulic pump control system, and two cover hydraulic joint assemblies connect simultaneously a hydraulic pump control system or connect respectively a hydraulic pump control system;
2, pending sample is placed between two olecranon chucks;
3, by the oil pocket of hydraulic pump control system control two cover hydraulic chuck assemblies, make the oil pressure of rear outer oil cavity greater than the oil pressure of front outer oil cavity, promote two inner casings and olecranon chuck and move to the sample direction;
4, when the two ends of sample are between two groups of olecranon chucks, the oil pressure of the rear interior oil pocket by hydraulic pump control system control two cover hydraulic chuck assemblies is greater than the oil pressure of front interior oil pocket, pushing piston and piston rod anconad chuck direction move, piston rod drive olecranon chuck moves to the direction of sample, tightened up by the squeezing action of collet slot inwall, sample is clamped;
5, when needs compress sample, repeat the action of step 3, promote two olecranon chucks and move to the sample direction, sample is compressed;
6, when needs stretch sample, the oil pressure of the front outer oil cavity by oil pump systems control two cover hydraulic chuck assemblies promotes two inner casings and olecranon chuck and moves to the direction away from sample greater than the oil pressure of rear outer oil cavity, and sample is stretched;
7, when needs when fast conversion is to the stretching of sample and compressed action, by the oil pressure of two annular outer platform two ends oil pockets of oil pump systems control conversion, can realize the quick switching that stretches and compress;
8, in the time need to accurately controlling the tension force of compression and stretching, the power sensor is connected with the PLC control system by signal transducting system, displacement transducer is connected with the PLC control system by signal transducting system, again hydraulic pump control system is connected by signal transducting system with the PLC control system; The oil pressure that overlaps two outer oil cavities of hydraulic chuck assemblies by PLC control system control two changes, and then accurately controls tensile force and compression stress to sample.
Apply the hydraulic chuck device structure of tension force and pressure with embodiment 1, difference is: be equipped with copper coin on the inwall of (1) two chuck shell front end, copper coin while and olecranon chuck and chuck housing contacts, the conductive effect in the time of can improving heating; (2) in two cover hydraulic chuck assemblies, the part that the olecranon chuck contacts with inner casing is cut off with I felt pad 34 and II felt pad 234 respectively, fixedly the bolt of olecranon chuck and inner casing cuts off olecranon chuck and bolt with felt pad, cuts off with felt pad between the pin shaft hole on bearing pin and the inner casing simultaneously; The bolt of bed knife sensor and inner casing cuts off bolt and inner casing with felt pad;
During use two chuck shells are connected an electrode by steel foil separately, two electrodes are communicated with the two ends of power supply respectively, again power supply is connected with the PLC control system by signal transducting system; Said apparatus is installed in the galvanizing simulated experiment machine, replace the clamping device on original zinc-plated simulated experiment machine, two chuck shells are connected with two electrodes respectively by steel foil, two electrodes connect respectively the two poles of the earth of power supply, directly sample is carried out electrical heating by electrode, can realize simulating galvanizing process, and can stretch fast and the conversion of compressing.
Claims (4)
1. hydraulic chuck device that applies tension force and pressure, it is characterized in that relatively being equipped with on the pedestal the first hydraulic chuck assembly and the second hydraulic chuck assembly, every cover hydraulic chuck assembly mainly is comprised of chuck shell, olecranon chuck and piston cylinder, wherein inner casing and the chuck shell of a cover hydraulic chuck assembly are bolted, be provided with two power sensors between the inner casing of another set of hydraulic chuck assembly and the chuck shell, the two ends of power sensor are bolted with chuck shell and inner casing respectively; The olecranon chuck is equipped on the piston cartridge passage front portion of chuck shell, and olecranon chuck afterbody is connected by bearing pin with the front portion of piston rod; Described piston cylinder is comprised of inner casing, outer shell, inner casing base, piston rod and piston; Be respectively equipped with annular inner convex platform and annular outer platform on the inner casing inner and outer wall, outer cylinder sheath forms two outer shell oil pockets outside inner casing and in the both sides of annular outer platform, and the outer shell sidewall is provided with two outer oilholes and is communicated with two outer shell oil pockets respectively; Inner casing one end is fixed on the inner casing base, inwall is connected with piston seal, piston and piston rod are structure as a whole, piston rod and annular inner convex platform are tightly connected, interior cylinder interior in the both sides of piston forms two inner casing oil pockets, and the inner casing sidewall is provided with two interior oilholes and is communicated with two inner casing oil pockets respectively; In the partial insertion piston cartridge passage of piston rod outside annular inner convex platform, the piston rod top is provided with a pin shaft hole, and bearing pin inserts the pin shaft hole of piston rod and the pin shaft hole of olecranon chuck simultaneously, the inwall of the front end contact chuck shell of olecranon chuck; Two outer shells are fixed on the pedestal simultaneously.
2. a kind of hydraulic chuck device that applies tension force and pressure according to claim 1 is characterized in that two olecranon chucks are oppositely arranged.
3. a kind of hydraulic chuck device that applies tension force and pressure according to claim 1, it is characterized in that the piston cartridge passage is communicated with the two ends of chuck shell, bearing pin passage and piston cartridge channel connection, be provided with two collet slots on the sidewall of piston cartridge passage front end, the olecranon chuck is positioned at collet slot, and olecranon chuck and collet slot are wedge shape.
4. a kind of hydraulic chuck device that applies tension force and pressure according to claim 1, it is characterized in that on the inner casing of two hydraulic chuck assemblies a displacement transducer being set respectively, the loop bar of displacement transducer is fixed on the inner casing, and the core bar of displacement transducer is fixed on the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110041960 CN102172903B (en) | 2011-02-22 | 2011-02-22 | Hydraulic chuck device applying tension and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110041960 CN102172903B (en) | 2011-02-22 | 2011-02-22 | Hydraulic chuck device applying tension and pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172903A CN102172903A (en) | 2011-09-07 |
| CN102172903B true CN102172903B (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110041960 Expired - Fee Related CN102172903B (en) | 2011-02-22 | 2011-02-22 | Hydraulic chuck device applying tension and pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102172903B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760017A (en) * | 2014-02-18 | 2014-04-30 | 北京工业大学 | Carbon fiber reinforced composite laminate compression test clamp and test method using same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564033A (en) * | 1979-06-22 | 1981-01-16 | Nippon Kokan Kk <Nkk> | Method and device for automatically measuring tension sample |
| DE4404988A1 (en) * | 1994-02-17 | 1995-08-24 | Bosch Gmbh Robert | Power tool with clamping device to record the opening width |
| CN100336629C (en) * | 2004-09-15 | 2007-09-12 | 西北工业大学 | Clamp head capable of measuring tension |
| CN201147907Y (en) * | 2008-01-25 | 2008-11-12 | 北京石油化工学院 | Hydraulic force amplifier having oil-liquid automatic compensation apparatus |
| DE102008058185A1 (en) * | 2008-11-20 | 2010-06-02 | Ott-Jakob Spanntechnik Gmbh | Tool clamping device |
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2011
- 2011-02-22 CN CN 201110041960 patent/CN102172903B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102172903A (en) | 2011-09-07 |
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