CN203732363U - Test fixture for testing - Google Patents
Test fixture for testing Download PDFInfo
- Publication number
- CN203732363U CN203732363U CN201420113961.9U CN201420113961U CN203732363U CN 203732363 U CN203732363 U CN 203732363U CN 201420113961 U CN201420113961 U CN 201420113961U CN 203732363 U CN203732363 U CN 203732363U
- Authority
- CN
- China
- Prior art keywords
- rear support
- wire rod
- fixture
- front bearing
- rotating disk
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a test fixture for testing, which comprises a stepping motor, a turntable, a rear support and a front support connected with the rear support, wherein a fixture part is arranged on the turntable; a curvature clamp flap is arranged on the front support; an open slot is formed in the front support; the curvature clamp flap comprises arc slide flaps; the arc slide flaps are connected with the front support via studs; the two arc slide flaps are connected by an adjusting bolt; the fixture part comprises a cylinder and a movable block matched with each other; a groove matched with a wire rod is formed in an excircle of the cylinder; the movable block comprises a fixing table and a movable clamp block made of rubber; the peripheries of two ejection block bolts are sleeved with compression springs; the compression springs are located between the fixing table and the movable clamp block; and a carrier is arranged between the stepping motor and the rear support.The fixture is provided with the spring which can produce a certain pretightening force, so that the movable clamp block is stressed more uniformly, and the arc slide flaps are directly connected with the open slot of the front support via the studs, so that the fixture is convenient to dismount and connect, low in cost and easy to process.
Description
Technical field
The utility model relates to a kind of test test fixture, is used in the stretch bending torture test of wire rod.
Background technology
Overhead power transmission conducting wire and lightning protection ground wire generally adopt steel hinge line, aluminium bag steel hinge line (hereinafter to be referred as wire rod) etc. to make, in operational process, wire rod can be waved because wind action forms, or aeolian vibration, concentrate larger position will form the phenomenons such as the disconnected thigh of broken string at stress, affect normal safe power supply.Thisly interrupt a burst phenomenon for broken string and be called the fatigure failure of wire rod waving or vibrate.Carrying out fatigue design according to different territorial environments, is the necessary problem of considering of design that becomes more meticulous, and this need to carry out compbined test to different wire rod fatigue datas and draw relevant reference data.In addition, for the device on new clothes pole line, the impact of fatigue lifetime is also needed to have an evaluation test standard.Therefore in the urgent need to a kind of such test fixture.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple in structure and test fixture that can carry out stretch bending torture test under different drawing stresses and flexural deformation state to built on stilts wire rod.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of test test fixture, its gordian technique is: it comprises stepper motor, rotating disk, rear support and be fixed together with rear support and be positioned at the front bearing before it;
Between described front bearing and rear support, form the space that can hold dial rotation by the adjusting pad arranging, the rotation axis of described stepper motor matches with the bearing being fixed on rear support, described rotating disk is located at the front end of the rotation axis of stepper motor, on described rotating disk, be provided with the fixture for fixing wire rod, described front bearing is provided with curvature folder lobe;
Described front bearing is provided with open slot, described curvature folder lobe comprise be fixed on front bearing open slot place for two of the positioning wire sliding lobes of supporting arcs, the sliding lobe of described arc is connected with front bearing by double-screw bolt, two arcs are slided lobes and are connected by adjusting bolt; The upper end of the sliding lobe of described arc is smooth fillet;
Described fixture comprises supporting cylinder and movable block, the cylindrical of described cylinder is provided with the groove mating with wire rod, described movable block comprises fixed station and the movable clamping piece of the quality of rubber materials that is connected with fixed station by jacking block bolt, and described movable clamping piece is provided with the groove matching with wire rod;
Two jacking block bolt peripheries are arranged with Compress Spring, and described Compress Spring is between fixed station and movable clamping piece;
On described rotating disk, symmetry offers two lightening holes;
Between described stepper motor and rear support, be provided with bracket.
The beneficial effect that adopts technique scheme to produce is:
1, the deflection of the built on stilts wire rod of this novel mean curvature folder lobe control, cylinder and the movable block clamping wire rod that matches, and stretch and simulate the static tension of actual line material by constant force, then by stepping electric drive rolling disc reciprocating rotary, thereby make wire rod bend tension back and forth, and then realize the function of carrying out torture test under different drawing stresses, different flexural deformation state, for the fatigure failure that prevents built on stilts wire rod provides important reference data, improve the security of power supply;
2, on described jacking block bolt, be arranged with spring, under the effect of fixed station, spring produces certain pretightning force, make the stressed more even of movable clamping piece, when the size of power changes in process of the test, also can play certain buffer action, extend the serviceable life of jacking block bolt, movable clamping piece;
3, the sliding lobe of described arc is directly connected in the open slot place of front bearing by double-screw bolt, dismantles easy to connectly, and cost is low, easily processing;
4, described rotating disk is provided with lightening hole, can reduce its weight, and then its rotator inertia is reduced, and while repeatedly rotation, easily controls;
5, movable clamping piece adopts quality of rubber materials or the larger material of other friction force, wire rod is clamped more firm;
6, between stepper motor and rear support, be provided with passive bracket, more firm.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of another angle of the present utility model;
Wherein, 1, jacking block bolt; 2, fixed station; 3, movable clamping piece; 4, cylinder; 5, rotating disk; 6, the sliding lobe of arc; 7, double-screw bolt; 8, adjusting bolt; Bearing before 9 representatives, 9-1, the first flat board, 9-2, the first supporting leg, 9-3, set bolt; 10, coupling bolt; 11, wire rod; 12, stepper motor; 13, represent rear support, 13-1, the second supporting leg, 13-2, the second flat board, 13-3, bearing seat; 14, lightening hole; 15, bearing; 16, Compress Spring; 17, adjusting pad; 18, bracket.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to accompanying drawing 1 and accompanying drawing 2, the utility model comprises stepper motor 12, rotating disk 5, rear support 13 and be fixed together with rear support 13 and be positioned at the front bearing 9 before it; Between between described front bearing 9 and rear support 13, be separated with certain distance, be provided with adjusting pad 17 between the two, this distance should be able to ensure that rotating disk 5 freely rotates, the rotation axis of described stepper motor 12 matches with the bearing 15 being fixed on rear support 13, described rotating disk 5 is fixedly installed in the front end of the rotation axis of stepper motor 12, on described rotating disk 5, be provided with the fixture for fixing wire rod 11, described front bearing 9 is provided with the curvature folder lobe for controlling wire rod deflection.
Described front bearing 9 is provided with open slot, described curvature folder lobe comprise be fixed on front bearing 9 open slot place for two of the positioning wire 11 sliding lobes 6 of supporting arcs, the sliding lobe 6 of described arc is connected with front bearing 9 by double-screw bolt 7, and two sliding lobes 6 of arc connect by adjusting bolt 8; The fillet that the upper end of the sliding lobe 6 of described arc is smooth transition; In the middle of two sliding lobes 6 of arc, have certain distance, this distance can hold wire rod 11 and pass through, V-structure is formed relatively at the sliding lobe of two arcs 6 tops, and the distance between two sliding lobes 6 of arc regulates as required via adjusting bolt 8.
Described fixture comprises two matching used cylinders 4 and movable block, described cylinder 4 cylindricals are provided with the groove matching with wire rod profile, the movable clamping piece 3 that described movable block comprises fixed station 2 and is connected with fixed station 2 by jacking block bolt 1, between described fixed station 2 and movable clamping piece 3, keep at a certain distance away, described movable clamping piece 3 is provided with the groove matching with wire rod, and jacking block bolt 1 is arranged side by side two.Two jacking block bolt 1 outer race are provided with Compress Spring 16, and described Compress Spring 16 is between fixed station 2 and movable clamping piece 3.When work, by cylinder 4 and being fitted to each other of movable clamping piece 3, wire rod 11 is clamped, a part for wire rod 11 is positioned at the groove that above-mentioned fixed station 2 and movable clamping piece 3 are offered, and is convenient to clamping and positioning.
On described rotating disk 5, symmetry offers two lightening holes 14; Between described stepper motor 12 and rear support 13, be provided with its bracket 18 firm and supporting role.
Before the above, bearing 9 comprises the first dull and stereotyped 9-1, be located at two the first supporting leg 9-2 of the first both sides, dull and stereotyped 9-1 bottom and be fixed on the first supporting leg 9-2 upper for connecting two set bolt 9-3 of puller system topmast support, the first dull and stereotyped 9-1 is provided with rectangular recess, described curvature folder lobe is fixed in the groove on the first dull and stereotyped 9-1 of front bearing 9, the shape of this first dull and stereotyped 9-1 is roughly triangular form, offer the U-shaped groove mating with wire rod 11 profiles in the middle part of the first dull and stereotyped 9-1, be provided with the groove for above-mentioned curvature folder lobe is installed in the middle and upper part of the first dull and stereotyped 9-1.
The above rear support 13 comprises the second dull and stereotyped 13-2, is located at two the second supporting leg 13-1 of the second both sides, dull and stereotyped 13-2 bottom and is located at the bearing seat 13-3 of the second dull and stereotyped 13-2 middle and upper part, bearing 15 is housed on bearing seat 13-3, and the shape of this second dull and stereotyped 13-2 is similar to triangle.Two symmetrical coupling bolts 10 are fixed on the first dull and stereotyped 9-1 of front bearing and the second dull and stereotyped 13-2 of rear support, and adjusting pad 17 is sheathed on coupling bolt 10.
Principle of work of the present utility model is: adopt stepper motor 12 to drive rotating disk 5 to rotate, on rotating disk 5, be fixed with cylinder 4 and movable block, movable block is connected with movable clamping piece 3 by two jacking block bolts 1, the cylinder 4 of movable clamping piece 3 under the power of the top of jacking block bolt 1 and with groove clamped test product jointly, it is wire rod 11, curvature folder lobe is clamped wire rod 11 in center of rotation, and along with the reciprocating rotation of rotating disk 5, wire rod 11 is subject to bending fatigue effect repeatedly.Apply a downward adjustable constant force in wire rod 11 lower ends, can realize the counter-bending ability test under different tension conditions.Front bearing 9 is fixed in the support of puller system topmast by set bolt 9-3.
Using method of the present utility model is: wire rod 11 is from bottom to top passed by the U-shaped groove in center of front bearing 9, estimate that extension elongation meets after fixing requirement, sliding two arcs lobe 6 is fixed on wire rod 11 by adjusting bolt 8, and is positioned in the groove on front bearing 9 tops.Wire rod 11 bendings are fixed on rolling disc 5 by cylinder 4 and movable clamping piece 3, apply constant pulling force in the bottom of wire rod 11, rotate rotating disk 5, calculate times of fatigue according to the number of revolutions of rotating disk 5 before fracture.When wire rod 11 is tested, wire rod 11 is underproof test product, and curvature folder lobe is standard fixture block, and the curvature of adjusting fixture block regulates the deflection of wire rod 11.Adopt the utility model also can be on the device (as wire clamp) on gold utensil or new clothes pole line the impact of the fatigue lifetime on wire rod 11 test, in the time that gold utensil or overhead device are tested, the wire rod 11 here becomes the wire rod of standard, curvature folder lobe is replaced by the wire clamp jaws of gold utensil to be tested or overhead device, the test of the tired parameter of can being correlated with.
The utility model structure is optimized more, and structure is optimized more, and result of use is better, and can improve serviceable life.
Claims (1)
1. a test test fixture, is characterized in that: it comprises stepper motor (12), rotating disk (5), rear support (13) and be fixed together with rear support (13) and be positioned at the front bearing (9) before it;
Between described front bearing (9) and rear support (13), form and can hold the space that rotating disk (5) rotates by the adjusting pad (17) arranging, the rotation axis of described stepper motor (12) matches with the bearing (15) being fixed on rear support (13), described rotating disk (5) is located at the front end of the rotation axis of stepper motor (12), on described rotating disk (5), be provided with the fixture for fixing wire rod (11), described front bearing (9) is provided with curvature folder lobe;
Described front bearing (9) is provided with open slot, described curvature folder lobe comprise be fixed on front bearing (9) open slot place for two of positioning wire (11) the sliding lobes of supporting arcs (6), the sliding lobe of described arc (6) is connected with front bearing (9) by double-screw bolt (7), and two sliding lobes of arc (6) connect by adjusting bolt (8); The upper end of the sliding lobe of described arc (6) is smooth fillet;
Described fixture comprises supporting cylinder (4) and movable block, the cylindrical of described cylinder (4) is provided with the groove mating with wire rod (11), described movable block comprises fixed station (2) and the movable clamping piece (3) of the quality of rubber materials that is connected with fixed station (2) by jacking block bolt (1), and described movable clamping piece (3) is provided with the groove matching with wire rod (11);
Two jacking block bolts (1) outer race is provided with Compress Spring (16), and described Compress Spring (16) is positioned between fixed station (2) and movable clamping piece (3);
The upper symmetry of described rotating disk (5) offers two lightening holes (14);
Between described stepper motor (12) and rear support (13), be provided with bracket (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113961.9U CN203732363U (en) | 2014-03-13 | 2014-03-13 | Test fixture for testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113961.9U CN203732363U (en) | 2014-03-13 | 2014-03-13 | Test fixture for testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732363U true CN203732363U (en) | 2014-07-23 |
Family
ID=51202426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113961.9U Expired - Fee Related CN203732363U (en) | 2014-03-13 | 2014-03-13 | Test fixture for testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732363U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198197A (en) * | 2016-06-22 | 2016-12-07 | 安徽徽风新型合成材料有限公司 | A kind of GSZ stretching clamping device |
| WO2018120135A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳市柔宇科技有限公司 | Bending equipment for membrane material |
| CN110137776A (en) * | 2019-04-28 | 2019-08-16 | 珠海市运泰利自动化设备有限公司 | A kind of Novel wire precision clamping device |
-
2014
- 2014-03-13 CN CN201420113961.9U patent/CN203732363U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198197A (en) * | 2016-06-22 | 2016-12-07 | 安徽徽风新型合成材料有限公司 | A kind of GSZ stretching clamping device |
| CN106198197B (en) * | 2016-06-22 | 2018-08-31 | 安徽徽风新型合成材料有限公司 | A kind of TGXG stretching clamping device |
| WO2018120135A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳市柔宇科技有限公司 | Bending equipment for membrane material |
| CN110137776A (en) * | 2019-04-28 | 2019-08-16 | 珠海市运泰利自动化设备有限公司 | A kind of Novel wire precision clamping device |
| CN110137776B (en) * | 2019-04-28 | 2024-02-13 | 珠海市运泰利自动化设备有限公司 | Novel accurate clamping device for wire rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20160313 |