CN85202283U - Wire stock extension measuring meter - Google Patents
Wire stock extension measuring meter Download PDFInfo
- Publication number
- CN85202283U CN85202283U CN 85202283 CN85202283U CN85202283U CN 85202283 U CN85202283 U CN 85202283U CN 85202283 CN85202283 CN 85202283 CN 85202283 U CN85202283 U CN 85202283U CN 85202283 U CN85202283 U CN 85202283U
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- China
- Prior art keywords
- screw
- chuck
- wire rod
- anchor clamps
- cam
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a wire stock extension measuring meter of an object length and deformation measuring device, which solves the problems that the existing measuring meter loosely clamps thick wires and results in damage to thin wires to result in measuring errors and even measuring failure, and meanwhile, the utility model also solves the problem of difficult adjustment of a fixed clamp balancing bar. The utility model is composed of a machine body, an electric motor, a retarding mechanism, a drive mechanism, a movable clamp, a fixed clamp, a movable clamp moving value measuring device and a photoelectric automatic parking device and is used for measuring the extension rate of enameled wires or other wire stocks.
Description
A kind of extensibility tester for wire rod that relates to Measuring Object length deformation device.
State Standard of the People's Republic of China (GB4074.3-83) has stipulated wire rod elongation rate test method, wherein regulation is clamped in an end of sample in the stationary fixture of testing equipment, make sample keep straightened condition ， And that the sample other end is clamped in another anchor clamps.The distance of two anchor clamps approximates standard length L
0
Starting characteristics test equipment, with the draw speed of 300 ± 60mm/min elongation sample to breaking or by the length growth rate of product standard defined.
Gauge length L after the record elongation
1
Reading on the extensometer is measured value.
Length growth rate δ can be calculated as follows when measuring with steel ruler:
δ＝ (L
1-L
0)/(L
0) ×100％
In the formula: L
0---sample marking distance length
L
1---sample is broken the gauge length mm after formula stretches.
The test of wire rod length growth rate is generally all carried out on extensometer.Figure 1 shows that Italian SiCMA company 6008 type extensometer anchor clamps.It comprises clamp body (1), nutplate (3), both are fixedly connected with mast (2), screw in screw rod (6) in the screw in the middle of the nutplate, and one of screw rod (6) is linking handle (7) regularly, the other end is linking fixture block (5) rotationally, another fixture block (4) is fixed on the clamp body (1), is shaped on straight shape stria on the face of fixture block (4), (5), when screwing handle (7), fixture block (4) (5) is just closed, and tested enameled wire is clamped in the anchor clamps.Going up in addition at clamp body (1), a tapped through hole screws in balance stem (8).There is significant disadvantages in this anchor clamps.
Because of the diameter of handle is 50mm only, when the laboratory technician to operate, because of hand strength is little, the tight thick wire rod of folder.The surface of fixture block is shaped on straight shape stria, causes damage when clamping fine rule, often makes the edge of the breakaway poing of line at fixture block during tension test, and causes invalidate the test.Because of fixture block (5) threaded (6) is to rotate to link, do not have guide piece again,, more press from both sides tight thick enameled wire so when clamping thick enameled wire, cause fixture block (5) crooked, enameled wire is subjected to displacement even is drawn out fixture block in fixture block when tension test, causes invalidate the test.
The effect of the balance stem of these anchor clamps (8) is, when sample is broken, because of the weight of balance stem, anchor clamps tilted, and touch electromagnetic switch, and extensometer is stopped immediately, shows the length of wire stretching this moment again by measurement mechanism.And this balance bar device adjustment bothers very much, especially when the enameled wire of drawing-down, often really causes extensometer fail to start or enameled wire to be broken Shi Buhui because of being out of tune and stops immediately.So be furnished with the 6008 type extensometers that the Italian SiCMA company of this chuck produces, the scope that only adapts to the stretching wire rod is more than φ 0.05mm.
The objective of the invention is to further improve the chuck and the automatic stopping device of this extensometer, be added in power less on the handle when making operation and can produce bigger clamping force, improve chuck structure, make it when clamping wire rod, can not produce the situation and the crooked disadvantage of fixture block of lesion wire, improve balance bar device, do not need to make it each test all will adjust.Improve automatic stopping device simultaneously, made it high sensitivity, when wire rod is broken, can stop immediately.
Wire rod extensometer of the present invention, by body, be fixed on the motor on the body, by electric motor driven reducing gear, ball screw gear train by the reducing gear drive, by ball wire rod mechanism moving anchor clamps that drive and the quiet anchor clamps that are fixed on the body, moving anchor clamps movement value measurement mechanism, automatic stopping device was formed when tested wire rod was broken.These component parts are the same with prior art, but the present invention has done further improvement to moving anchor clamps, quiet anchor clamps and automatic stopping device.
Moving anchor clamps are modified into by slide that links slidably with panel and the cam anchor clamps that are fixed on the slide to be formed.Quiet anchor clamps are modified into by being fixed on quiet clamping fixture seat that has rotation axis on the panel and the cam anchor clamps that are fixed on the quiet clamping fixture seat rotation axis to be formed.Shoulder rod principle because of the cam anchor clamps can adopt long handle to utilize, use less power to produce bigger clamping force, thereby solved the hypodynamic problem of original clamping.The fixture block of anchor clamps has been cancelled the stria of straight trough shape, and only opens a groove in the centre, and its clamping surface has increased roughness, so can the lesion wire body when clamping thin wire, and line can slippage in clamping surface yet.When clamping heavy wire, the groove in the middle of clamping surface makes wire rod cause a bulging deformation, is stuck in the groove of fixture block, even heavy wire needs bigger pull-off force like this, also can not make wire rod at the fixture block intrinsic displacement because of insufficient clamping force.
When wire rod was broken, automatic stopping device adopts quiet anchor clamps to rotate to drive automatic photoelectricity lugs realized automatic stopping.Concrete way is to connect electromagnet before the test earlier, quiet anchor clamps are absorbed moving leaning against on the set screw, then tested wire rod is clipped in moving anchor clamps and the quiet anchor clamps, stretches, electromagnet outage this moment, lose electromagnetic attraction, quiet anchor clamps still lean against on the set screw under the effect of tensile force, and when wire rod was broken, the tensile force that acts on the quiet anchor clamps disappeared, quiet anchor clamps rotated under the effect of self center of gravity and resetted this moment, just drove the action of photoelectricity automatic stopping device and realized parking.On quiet anchor clamps, also be provided with the center of gravity adjusting gear, can alignment jig the distance of centre-of gravity shift axis, when commissioning device, the centre-of gravity shift axial location adjust appropriate after, no matter be to draw thick or thin wire just need not to adjust again.And old equipment is adjusted the center of gravity of anchor clamps with balance stem, and each change the in line footpath along with the stretching wire rod all needs to readjust the displacement of center of gravity, and be especially more difficult when the stretching thin wire.
Owing to adopted the photoelectric control automatic stopping device, the inertia of certain system can design forr a short time than electromagnetic switch lugs, so have higher sensitivity, has improved the precision of test.
Fig. 1 is the anchor clamps synoptic diagram of Italian SiCMA company 6008 type extensometers.
Fig. 2 is the cross sectional plan view that has the extensometer of cam anchor clamps and photoelectricity automatic stopping device.
Fig. 3 is that Fig. 2 D is to local diagrammatic sketch.
Fig. 4 be Fig. 2 E to partial view.
Fig. 5 is that the B-B of Fig. 2 is to cut-away view.
Fig. 6 is the zoomed-in view of the quiet anchor clamps in Fig. 2 right side (13).
Now describe a most preferred embodiment of the present invention in conjunction with the accompanying drawings in detail.
Shown in Fig. 2,4, extensibility tester of the present invention is by support (26), motor (1), reducing gear (2), ball screw gear train (3), moving anchor clamps (21), quiet anchor clamps (13), moving anchor clamps traverse measuring device (4), photoelectricity automatic stopping device (28) (Fig. 4) is formed.Support (26), motor (1), reducing gear (2), ball screw gear train (3), moving anchor clamps traverse measuring device (4) is identical with prior art, and yet non-claim of the present invention is not so be described in detail one by one.
As Fig. 1 and shown in Figure 5, moving anchor clamps (21) are made up of slide (23) and cam anchor clamps (20), slide (23) is made up of slide block (56) and the slide block lid (53) that is screwed on slide block (56), both sides form different rail groove (54) and cooperate slidably with square-section guide rail (57) on the panel (55), on the slide block lid (53) square hole is arranged, the side's of being shaped on tenon (51) embeds this square hole ， And screw (52) tightening on the spin feed screw nut.Cam chuck (20) is screwed on the slide block (56) of slide (23).
Shown in Fig. 2,6, quiet anchor clamps (13) are made up of quiet clamping fixture seat (58) and cam chuck (16).Quiet clamping fixture seat (58) has a bearing holder (housing, cover) (11) that is screwed on panel (55), two roller bearings (5) are equipped with in bearing holder (housing, cover) (11) lining, the centre separates with quiet clamping ring (7) and moving clamping ring (6), the Jing Quan of a bearing leans against on the shoulder of bearing holder (housing, cover) endoporus, the Jing Quan of another bearing compresses with adjusting screw (10), the moving-coil Nei And that rotating shaft (12) is contained in bearing (5) is transition fit with it, with nut (9) bearing (5) is pressed in the rotating shaft (12).
Shown in Figure 4 as Fig. 2, the structure of automatic stopping device is as follows, the microcephaly of driving lever (8) and rotating shaft (12) holds axle key to link, be shaped on screw on the handle of driving lever (8), mass screw (30) is relative with trip bolt (31) to be screwed in this screw, and balance screw (30) is copper, heavier, along with the change that is screwed into the degree of depth in the screw, just can regulate the center of gravity of quiet anchor clamps (13) and the distance of bearing (12) axis, trip bolt (31) is used to lock mass screw (30).Light cutting device (29) is screwed in the side of driving lever (8), and its an arc groove Li ， And who extend into photoelectricity seat (27) centre that is fixed on the support (26) can rotate in groove.Locating piece (32) is fixed on the panel (55) together with the same bearing holder (housing, cover) of screw (11), one projection (33) that has a screw is arranged on the locating piece, dog screw (35) screws in this screw, and setscrew nut (36) can be with dog screw (35) locking of adjusting.Coil brace (37) is screwed on locating piece projection (33), and solenoid (40) is fixed on the coil brace (37) with bolt (39) nut (38), and weighing apparatus iron (11) is screwed the top in driving lever (8).
Shown in Figure 1 as Fig. 3, cam chuck (20) (16) on moving anchor clamps (21) and the quiet anchor clamps (13) is essentially identical, it comprises a base of the carrier head (44), its end has two lugs (18) that the centre is porose, the other end has a leg-of-mutton protruding block, screw is arranged on the protruding block, supporting screw (47) is spun in this screw, have handle (49) on the cam (17), the porose cam cover (48) that studs with in cam (17) center, cam (17) is embedded between base of the carrier head two lugs (18) And with it movingly, and the hole of hole on the lug (18) and cam cover is aimed at and inserted axle (15), and the other end of axle is threaded, fixing with nut (19), cam (17) can be gone up at axle (15) and rotate.Both sides are shaped on arc groove in the middle of the base of the carrier head (44), the center of circular arc has through hole, chuck (45) (46) all has the chuck pin of two circles, distance between the chuck pin inboard of chuck (15) just in time can snap in the wall between base of the carrier head two grooves, distance between the chuck pin inboard of chuck (46) just in time can snap in the chuck outside of foot face of chuck (45), axle (59) passes the hole at two chuck pin centers and the hole of groove midfeather, with they movingly, chuck (45) (16) can be gone up at axle (59) and rotate, be enclosed within curved 90 ° of holes (50) of inserting two chuck sidewalls respectively, two of the spring (14) of axle on (59), elastic force struts chuck, a chuck (46) is leaned against on the cam (17), and a chuck (45) leans against on the supporting screw (47).The extended line of the matching surface of chuck and chuck (60) can be by the axis of chuck pin hole and axle (59), and the chuck face can all coincide when clamping like this.Moving handle (49) just makes cam (17) rotate, chuck (45) (46) is compressed, because of the length of handle (49) far surpasses cam surface to the distance between the axle (15), according to shouldering rod principle, handle (49) is gone up the less power of effect, just can produce bigger clamping force on the cam surface.Cam can be Archimedes's helical line cam, and also with involute cam, the cam chuck is screwed respectively on the slide (23) of moving anchor clamps (21) and in the rotating shaft of quiet clamping fixture seat (58) (12).Clamping surface (45) (46) has groove ， And blasting treatment longitudinally increases its roughness.
Electromagnetic coil during use (40) energising earlier produces magnetic force, inhale moving armature (41) and driving lever (8) is leaned against on the dog screw (35), then tested wire rod two respectively being clamped in the last And of moving anchor clamps (21) and quiet anchor clamps (13) begins to stretch, electromagnetic coil this moment (40) outage, but effect because of tensile force, driving lever (8) is leaned against on the dog screw (35), when line is broken, tensile force disappears, and quiet anchor clamps (13) rotate under the center of gravity effect of self, rotates in photoelectricity seat (27) and drive light cutting device (29), by the photoelectric control lugs, realize stopping.
Claims (11)
1, a kind of extensibility tester for wire rod that relates to Measuring Object length deformation device, be fixed on motor [1] on the support [26] by support [26], reducing gear [2] by motor [1] driving, ball screw gear train [3] by reducing gear [2] drive, moving anchor clamps [21] that drive by ball wire rod mechanism [3] and be fixed on quiet anchor clamps [13] on the panel [55], with moving anchor clamps movement value measurement mechanism [4], automatic stopping device when tested wire rod is broken [28] is formed.
It is characterized in that:
Slide [23] that described moving anchor clamps [21] are linked slidably by same panel [55] and the cam chuck [20] that is fixed on the slide [23] are formed.
Described quiet anchor clamps [13] are made up of the cam chuck [16] that is fixed on the quiet clamping fixture seat [58] that has rotation axis on the panel [55] and be fixed on the interior rotation axis [12] of quiet clamping fixture seat [58].
Described automatic stopping device [28] is by with the fixedly connected light cutting device [29] of the rotating shaft [12] of quiet clamping fixture seat [58] be fixed on the photoelectricity automatic stopping device that the photoelectricity seat [27] on the support [26] is formed.
2, extensibility tester for wire rod as claimed in claim 1 is characterized in that:
Cam chuck in moving anchor clamps and the quiet anchor clamps all comprises a base of the carrier head (44), one end of base of the carrier head (44) has two centres that the lug of through hole (18) is arranged, the other end of base of the carrier head (44) has a leg-of-mutton protruding block, there is screw the upper end of protruding block, there is the arc groove of two symmetries both sides in the middle of the base of the carrier head, on the wall of groove through hole is arranged, band handle cam (17) is stuck between two lugs (18) and is in active relationship, the through hole that axle (15) passes lug is in active relationship with the Zhong Xin Kong And that is with the handle cam and they, cam can rotate on axle, screw in a supporting screw (47) in the protruding block threaded hole, chuck (45) (46) bipod sticks into the wall in the middle of the arc groove, the bipod of chuck (45) is stuck in the outside of chuck (46) bipod again, axle (59) passes the hole at two chucks (45) (46) center and the hole of groove midfeather, with they movingly, chuck can rotate on axle, insert respectively in the areole (50) of two chucks (45) (46) at one spring (14) two that is enclosed within on the axle, chuck is strutted, chuck (46) is leaned against on the cam, and chuck (45) leans against on the supporting screw (47).
3, extensibility tester for wire rod as claimed in claim 2 is characterized in that the axis of elongated surfaces by chuck pin (43) hole of the clamping surface of chuck (45) (46).
4, extensibility tester for wire rod as claimed in claim 3 is characterized in that there is a longitudinal fluting structure clamping surface centre of chuck (45) (46).
5, extensibility tester for wire rod as claimed in claim 3, the clamping surface that it is characterized in that chuck (45) (46) is through blasting treatment.
6, as claim 2 or 3 or 4 or 5 described extensibility tester for wire rod, the seal face that it is characterized in that taking turns with handle is recessed (17) is Archimedes's helical line.
7, as claim 2 or 3 or 4 or 5 described extensibility tester for wire rod, the seal face that it is characterized in that taking turns with handle is recessed (17) is an involute urve.
8, as claim 2 or 3 or 4 or 5 described extensibility tester for wire rod, it is characterized in that and slide (23) that panel (55) links slidably is made up of slide block (56) and slide block lid (53), slide block lid (53) with the same slide block of screw (56) fixedly And at two sides formation two guide rail grooves (54), protruding guide rail (57) on the same panel of groove (54) (55) is slidingly matched, slide block lid (53) is gone up also has a hole, in square tenon (51) embedded hole on the ball screw nut.
9, as claim 1 or 2 or 3 or 4 or 5 described extensibility tester for wire rod, it is characterized in that having the quiet clamping fixture seat (58) of rotation axis, one bearing holder (housing, cover) (11) is arranged, be screwed on panel (55), two bearings (5) are housed in the ladder rotating shaft (12), the centre separates with moving spacer ring (6), bearing (5) reinstalls bearing holder (housing, cover) (11), the centre separates with quiet spacer ring (7), bearing (5) cycle surface uses the adjustment screw (10) with bearing holder (housing, cover) threaded connection to compress, bearing inner race compresses with first nut (9) of same rotating shaft (12) threaded connection, locating piece (32) is screwed on the flange of bearing holder (housing, cover) (11), and a projection (33) that has a screw is arranged on the locating piece (32).Screwing in the screw has set screw (35), and driving lever (8) is installed in the rear end of rotating shaft (12), and the axle chain links with it, and the rotation that the contacts side surfaces of the same driving lever of set screw (35) (8) has limited driving lever has also just limited the rotation of rotating shaft (12).Driving lever also has screw on (8), screws in balance screw (30) and holding screw (31) in this screw, and the outer face of rotating shaft (12) is shaped on screw in order to the fastening cam chuck (16) that is installed in above it of screw.
10, extensibility tester for wire rod as claimed in claim 9 is characterized in that also being fixed with armature (41) on the driving lever (8), also is fixed with solenoid (40) on locating piece projection (33), can hold armature (41) after solenoid (40) energising.
11, extensibility tester for wire rod as claimed in claim 9, it is characterized in that light cutting device (29) is fixed on the end face of driving lever (8), have a circular groove in the middle of the photoelectricity seat (27), rotating shaft (12) is rotated and is also driven light cutting device (27) and rotate in groove and interdict or connect light path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202283 CN85202283U (en) | 1985-06-08 | 1985-06-08 | Wire stock extension measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202283 CN85202283U (en) | 1985-06-08 | 1985-06-08 | Wire stock extension measuring meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85202283U true CN85202283U (en) | 1987-01-21 |
Family
ID=4798131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85202283 Expired - Lifetime CN85202283U (en) | 1985-06-08 | 1985-06-08 | Wire stock extension measuring meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85202283U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002098334A1 (en) * | 2001-06-07 | 2002-12-12 | Hurong Zheng | A simple delay alarm |
| WO2002100307A1 (en) * | 2001-06-08 | 2002-12-19 | Hurong Zheng | A simple delay alarm |
-
1985
- 1985-06-08 CN CN 85202283 patent/CN85202283U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002098334A1 (en) * | 2001-06-07 | 2002-12-12 | Hurong Zheng | A simple delay alarm |
| WO2002100307A1 (en) * | 2001-06-08 | 2002-12-19 | Hurong Zheng | A simple delay alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |