CN204514711U - Fixture - Google Patents
Fixture Download PDFInfo
- Publication number
- CN204514711U CN204514711U CN201520156329.7U CN201520156329U CN204514711U CN 204514711 U CN204514711 U CN 204514711U CN 201520156329 U CN201520156329 U CN 201520156329U CN 204514711 U CN204514711 U CN 204514711U
- Authority
- CN
- China
- Prior art keywords
- hitch
- plane
- thread bush
- fixed bar
- lifting arm
- 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 belongs to rubber and plastics testing technical field of tools, relates to a kind of fixture, comprises main body rack, enhancing ring, two voussoirs and lifting arm; Main body rack comprises fixed bar, thread bush and hitch; Hitch has a bottom surface and two hitch inclined-planes; The bottom of hitch there is lifting arm through hole; Thread bush has interior guide hole, and thread bush and hitch are fixedly connected; One end of fixed bar and thread bush is fixedly connected; Voussoir inclined-plane matches with hitch inclined-plane; The center-pole of lifting arm coordinates with interior guide hole, can slide axially along it; Center-pole there is driving lever; Center-pole end is fixed with driver plate, the upgrading slot on driver plate inserted wedge; Thread bush has the long sliding hole of lateral direction penetrating, driving lever passes and slides along long sliding hole; External thread face on the internal thread of enhancing ring and thread bush is combined into screw thread pair; Enhancing ring has the allocating slot of annular, the driving lever of lifting arm extend in allocating slot.The utility model not easily skids after clamping test sample block.
Description
Technical field
The utility model belongs to rubber and plastics testing technical field of tools, is specifically related to a kind of fixture clamping rubber and plastics testing sample block.
Background technology
In rubber and plastics research field, cupping machine often to be used to do experiment.GB GB/T 15902-2009, name is called " mensuration of conveying belt elastic extension and permanent elongation and the calculating of elastic modulus ", and the inside needs to use the testing machine meeting standard ISO 7500-1 to do experiment with regard to regulation.
When doing experiment, need test sample block to be clamped on testing machine, need to use fixture.Normally used fixture comprises main body rack and two clamping plate with clamping face, main body rack comprises fixed bar and fixed head, be connected on the working shaft of testing machine by fixed bar, fixed head there is transverse holes, clamping plate there is transverse holes, penetrates each transverse holes by bolt, re-use fastening nuts, if put test sample block between two clamping faces, just it can be clamped.
The fixture that tradition uses easily skids.Although test sample block is held very tight in the test preparatory stage by tightening nut, but test sample block is flexible, length after under tension in process of the test, the area of xsect but can correspondingly diminish, less thick, between tension section and clamp segment that first xsect diminish, less thick, skid, and then part inwards also receives pulling force, length, cross-sectional area diminishes, less thick, also skid, the part of skidding is gradually to the other parts transition of clamp segment, final test sample block comes off between clamping face, cause test failure.
A kind of novel, non-slip chuck designs needs to be released.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, provides a kind of chuck designs not easily skidded.
The utility model is achieved through the following technical solutions:
A kind of fixture, comprises main body rack, enhancing ring, two voussoirs and lifting arm;
Main body rack comprises fixed bar, thread bush and hitch;
Hitch is semi-circular, and there is dovetail groove centre, and dovetail groove has a bottom surface and two hitch inclined-planes, and bottom surface is on bottom, and two hitch inclined-planes are respectively on two inclined plane parts of hitch;
The bottom of hitch there is lifting arm through hole; Thread bush is tubulose, and there is interior guide hole centre, aligns with the center line of lifting arm through hole, and one end and the hitch of thread bush are fixedly connected;
The axial line of fixed bar aligns with the axial line of thread bush, and one end of fixed bar and one end of thread bush are fixedly connected;
Voussoir there are voussoir inclined-plane, clamping face and upgrading slot, voussoir inclined-plane matches with hitch inclined-plane, be close to and along this inclined-plane relative sliding; The direction of clamping face is parallel to the direction of fixed bar axial line; Two voussoir inclined-planes match with two hitch inclined-planes respectively;
Lifting arm comprises driving lever, center-pole and driver plate; Center-pole coordinates with interior guide hole, can slide axially along it; Center-pole has lateral direction penetrating hole, driving lever is fixedly connected by this lateral direction penetrating hole and center-pole; Center-pole end has been fixedly connected driver plate, the upgrading slot on driver plate inserted wedge, can be moved when driver plate moves along fixed bar direction of axis line by the groove of upgrading slot along haul or push voussoir along hitch inclined-plane;
Thread bush has the long sliding hole of lateral direction penetrating, the direction of long sliding hole is parallel to fixed bar direction of axis line; Driving lever is through long sliding hole, and driving lever can slide along long sliding hole, and namely lifting arm and thread bush constitute moving sets;
Enhancing ring has internal thread, is combined into screw thread pair with the external thread face on thread bush; Enhancing ring there is the allocating slot of annular, the driving lever of lifting arm extend in allocating slot, when threadingly pair rotates enhancing ring, allocating slot rotates while move up and down, the two ends of driving lever and the sidewall of allocating slot slide mutually, allocating slot drives driving lever and whole lifting arm upper and lower translation, and driver plate drives voussoir to move along hitch inclined-plane;
Whole fixture is connected on the working shaft of testing machine by fixed bar.
In order to keep voussoir inclined-plane and hitch inclined-plane to be close to all the time, the both sides on voussoir inclined-plane are also provided with outstanding edge, and voussoir defines T-shaped tenon; Main body rack also comprises L shaped plate, is fixedly connected with the plane of both sides, hitch inclined-plane, and L shaped plate wherein has plane parallel with hitch inclined-plane and maintains certain distance, and six planes of two L shaped plates and hitch inclined-plane surround a T-slot; T-shaped tenon coordinates with T-slot and forms moving sets, and voussoir is along this moving sets translation.
For the ease of rotary lifting ring, the outside surface of enhancing ring is provided with and dials handle, be fixedly connected with the outside surface of enhancing ring.
, there is an angle on above-mentioned hitch inclined-plane between this inclined-plane and fixed bar axial line, the optimum range of this angle is 20 ~ 40 °.
Upgrading slot on above-mentioned driver plate inserted wedge, driver plate is when push-and-pull upgrading slot, the relative position on the upper and lower surfaces of driver plate and the groove edge of upgrading slot is not changeless, voussoir moves along hitch inclined-plane, the existing displacement component being parallel to fixed bar direction of axis line, also the displacement component perpendicular to fixed bar direction of axis line is had, and driver plate is only parallel to the displacement of fixed bar direction of axis line, so have relative sliding between the groove edge of driver plate and upgrading slot, when opening to make two voussoirs, driver plate can tangle groove edge, two clamping faces are combined time slot along can not mutually interfere again with center-pole, so be provided with half slot on groove edge.
In use, first by fixed bar, the utility model is connected on the working shaft of testing machine, upper working shaft installs one, lower working shaft installs one;
Then by stirring handle, enhancing ring is rotated, and enhancing ring drives driving lever by allocating slot, thus drives lifting arm translation, drives voussoir along the translation of hitch inclined-plane, two clamping faces are opened by driver plate;
One end of test sample block is placed between two clamping faces;
Rotate in the other direction and dial handle, then driver plate promotes two voussoirs along two clamping face translations, and two clamping faces are combined gradually, and the clamping of test sample block;
Upper and lower two the utility model clamp the two ends of test sample block respectively, then start to do experiment;
In process of the test, test sample block under a stretching force elongated, cross-sectional area diminishes simultaneously, less thick, but, along with pulling force, two voussoirs also have the trend of translation simultaneously, and the result of movement is the translation being not only parallel to fixed bar direction of axis line, and perpendicular to the translation of fixed bar direction of axis line, namely press from both sides tighter and tighter, so the utility model not easily skids to test sample block;
Off-test, rotates and dials handle, two clamping faces are opened, and test sample block comes off from clamping face.
The beneficial effects of the utility model: after clamping test sample block, test sample block not easily skids in process of the test.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure schematic diagram of the utility model embodiment, the situation on universal testing machine during clamp assay sample block 5;
Fig. 2 is the three-dimensional structure partial schematic sectional view of the utility model embodiment;
Fig. 3 is the semisectional view of the utility model embodiment, situation when voussoir 3 opens;
Fig. 4 is the semisectional view of the utility model embodiment, the situation that two clamping faces of voussoir 3 are combined;
Fig. 5 is the cut-open view along B-B line in Fig. 4;
Fig. 6 is the three-dimensional structure partial schematic sectional view of main body rack 1;
Fig. 7 is the three-dimensional structure partial schematic sectional view of enhancing ring 2;
Fig. 8 is the three-dimensional structure schematic diagram of voussoir 3;
Fig. 9 is the three-dimensional structure schematic diagram of lifting arm 4;
Shown in figure: 1. main body rack; 11. fixed bars; 12. thread bushs; 121. long sliding hole; 122. external thread faces; Guide hole in 123.; 13. hitch; 131. lifting arm through holes; 132.L shape plate; 133.T shape groove; 134. hitch inclined-planes; 135. dovetail groove; 136. bottom; 137. inclined plane part; 14. fixed bar axial lines; 2. enhancing ring; 21. groups of handles; 22. internal threads; 23. allocating slots; 3. voussoir; 31. upgrading slots; 32. half slots; 33. voussoir inclined-planes; 34. edges; 35. clamping faces; 4. lifting arm; 41. driving levers; 42. center-poles; 43. driver plates; 5. test sample block; A. the angle between inclined-plane and fixed bar axial line.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
Embodiment: see Fig. 1 to Fig. 9.
A kind of fixture, comprises main body rack 1, enhancing ring 2, two voussoirs 3 and lifting arm 4;
As shown in Figure 6, main body rack 1 comprises fixed bar 11, thread bush 12 and hitch 13;
Hitch 13 is semi-circulars, and there is dovetail groove 135 centre, and dovetail groove 135 has a bottom surface and two hitch inclined-planes 134, and bottom surface 135 is on bottom 136, and two hitch inclined-planes 134 are respectively on two inclined plane parts 137 of hitch;
Lifting arm through hole 131 is arranged at the bottom 136 of hitch; Thread bush 12 is tubuloses, and there is interior guide hole 123 centre, aligns with the center line of lifting arm through hole 131, and one end and the hitch 13 of thread bush 12 are fixedly connected;
The axial line of fixed bar 11 aligns with the axial line of thread bush 12, and one end of fixed bar 11 and one end of thread bush 13 are fixedly connected;
As shown in Figure 8, voussoir 3 there are voussoir inclined-plane 33, clamping face 35 and upgrading slot 31, voussoir inclined-plane 33 matches with hitch inclined-plane 134, be close to and along this inclined-plane relative sliding; The direction of clamping face 35 is parallel to the direction of fixed bar axial line 14; Two voussoir inclined-planes 33 match with two hitch inclined-planes 134 respectively;
As shown in Figure 9, lifting arm 4 comprises driving lever 41, center-pole 42 and driver plate 43; Center-pole 42 coordinates with interior guide hole 123, can slide axially along it; Center-pole 42 has lateral direction penetrating hole, driving lever 41 is fixedly connected by this lateral direction penetrating hole and center-pole 42; Center-pole 42 end has been fixedly connected driver plate 43, the upgrading slot 31 on driver plate 43 inserted wedge, and driver plate 43 can be moved along hitch inclined-plane 134 along haul or push voussoir 3 by the groove of upgrading slot 31 when the direction of fixed bar axial line 14 is moved;
Thread bush 12 has the long sliding hole 121 of lateral direction penetrating, the direction of long sliding hole 121 is parallel to the direction of fixed bar axial line 14; Driving lever 41 is through long sliding hole 121, and driving lever 41 can slide along long sliding hole 121, and namely lifting arm 4 and thread bush 12 constitute moving sets;
As shown in Figure 7, enhancing ring 2 has internal thread 22, is combined into screw thread pair with the external thread face 122 on thread bush 12; Enhancing ring 2 there is the allocating slot 23 of annular, the driving lever 41 of lifting arm extend in allocating slot 23, when threadingly pair rotates enhancing ring 2, allocating slot 23 rotates while move up and down, the two ends of driving lever 41 and the sidewall of allocating slot 23 slide mutually, allocating slot 23 drives driving lever 41 and whole lifting arm 4 upper and lower translation, and driver plate 43 drives voussoir 3 along hitch inclined-plane 134 translation;
Whole fixture is connected on the working shaft of testing machine by fixed bar 11.
As shown in Figure 5, in order to keep voussoir inclined-plane 33 and hitch inclined-plane 134 to be close to all the time, the both sides on voussoir inclined-plane 33 are also provided with outstanding edge 34, and voussoir 3 defines T-shaped tenon; Main body rack 1 also comprises L shaped plate 132, be fixedly connected with the plane of both sides, hitch inclined-plane 134, L shaped plate 132 wherein has plane parallel with hitch inclined-plane 134 and maintains certain distance, and six planes of two L shaped plates and hitch inclined-plane 134 surround a T-slot 133; T-shaped tenon coordinates with T-slot 133 and forms moving sets, and voussoir 3 moves along this moving sets.
As shown in Figure 7, for the ease of rotary lifting ring 2, the outside surface of enhancing ring 2 is provided with and dials handle 21, be fixedly connected with the outside surface of enhancing ring 2.
, there is an angle on above-mentioned hitch inclined-plane 134 between this inclined-plane and fixed bar axial line 14, as in Fig. 3 and Fig. 4 the angle A that marks, the angle that the present embodiment is arranged is 25 °.
Upgrading slot 31 on above-mentioned driver plate 43 inserted wedge, driver plate 43 is when push-and-pull upgrading slot 31, the relative position on the groove edge of driver plate 43 upper and lower surfaces and upgrading slot 31 is not changeless, voussoir 3 moves along hitch inclined-plane 134, the existing displacement component being parallel to fixed bar axial line 14 direction, also the displacement component perpendicular to fixed bar axial line 14 direction is had, and driver plate 43 is only parallel to the displacement in fixed bar axial line 14 direction, so have relative sliding between the groove edge of driver plate 43 and upgrading slot 31, when opening to make two voussoirs 3, driver plate 43 can tangle groove edge, two clamping faces 35 are combined time slot along can not mutually interfere again with center-pole 42, so be provided with half slot 32 on groove edge.
In use, first by fixed bar 11, the utility model is connected on the working shaft of testing machine, upper working shaft installs one, lower working shaft installs one;
Then by stirring handle 21, enhancing ring 2 is rotated, and enhancing ring 2 drives driving lever 41 by allocating slot 23, thus drives lifting arm 4 translation, drives voussoir 3 along hitch inclined-plane 134 translation, two clamping faces 35 are opened, as shown in Figure 3 by driver plate 43;
One end of test sample block 5 is placed between two clamping faces 35;
Rotate in the other direction and dial handle 21, then driver plate 43 promotes two voussoirs 3 along hitch inclined-plane 134 translation, and two clamping faces 35 are combined gradually, and test sample block 5 is clamped;
Upper and lower two the utility model clamp the two ends of test sample block 5 respectively, as shown in Figure 1, then start to do experiment;
In process of the test, test sample block 5 under a stretching force elongated, cross-sectional area diminishes simultaneously, less thick, but, along with pulling force, two voussoirs 3 also have the trend of translation simultaneously, and the result of movement not only has the translation being parallel to fixed bar axial line 14 direction, and have the translation perpendicular to fixed bar axial line 14 direction, namely press from both sides tighter and tighter, so the utility model not easily skids to test sample block 5;
Off-test, rotates and dials handle 21, two clamping faces 35 are opened, and test sample block comes off from clamping face 35.
The beneficial effect of the present embodiment: after clamping test sample block 5, test sample block 5 not easily skids in process of the test.
Claims (5)
1. a fixture, is characterized in that, comprises main body rack, enhancing ring, two voussoirs and lifting arm;
Main body rack comprises fixed bar, thread bush and hitch;
Hitch is semi-circular, and there is dovetail groove centre, and dovetail groove has a bottom surface and two hitch inclined-planes, and bottom surface is on bottom, and two hitch inclined-planes are respectively on two inclined plane parts of hitch;
The bottom of hitch there is lifting arm through hole; Thread bush is tubulose, and there is interior guide hole centre, aligns with the center line of lifting arm through hole, and one end and the hitch of thread bush are fixedly connected;
The axial line of fixed bar aligns with the axial line of thread bush, and one end of fixed bar and one end of thread bush are fixedly connected;
Voussoir there are voussoir inclined-plane, clamping face and upgrading slot, voussoir inclined-plane matches with hitch inclined-plane, be close to and along this inclined-plane relative sliding; The direction of clamping face is parallel to the direction of fixed bar axial line;
Lifting arm comprises driving lever, center-pole and driver plate; Center-pole coordinates with interior guide hole, can slide axially along it; Center-pole has lateral direction penetrating hole, driving lever is fixedly connected by this lateral direction penetrating hole and center-pole; Center-pole end has been fixedly connected driver plate, the upgrading slot on driver plate inserted wedge;
Thread bush has the long sliding hole of lateral direction penetrating, the direction of long sliding hole is parallel to fixed bar direction of axis line; Driving lever is through long sliding hole, and driving lever slides along long sliding hole;
Enhancing ring has internal thread, is combined into screw thread pair with the external thread face on thread bush; Enhancing ring has the allocating slot of annular, the driving lever of lifting arm extend in allocating slot.
2. fixture according to claim 1, the both sides that it is characterized by voussoir inclined-plane are also provided with outstanding edge, and voussoir forms T-shaped tenon; Main body rack also comprises L shaped plate, is fixedly connected with the plane of both sides, hitch inclined-plane, and L shaped plate wherein has plane parallel with hitch inclined-plane and maintains certain distance, and six planes of two L shaped plates and hitch inclined-plane surround a T-slot; T-shaped tenon coordinates with T-slot and forms moving sets, and voussoir is along this moving sets translation.
3. fixture according to claim 1 and 2, is characterized by angle between hitch inclined-plane and fixed bar axial line within the scope of 20 ~ 40 °.
4. fixture according to claim 1 and 2, is characterized by and be provided with group handle on the outside surface of enhancing ring, be fixedly connected with the outside surface of enhancing ring.
5. fixture according to claim 1 and 2, is characterized by and arrange half slot on the groove edge of upgrading slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156329.7U CN204514711U (en) | 2015-03-19 | 2015-03-19 | Fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156329.7U CN204514711U (en) | 2015-03-19 | 2015-03-19 | Fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204514711U true CN204514711U (en) | 2015-07-29 |
Family
ID=53712673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520156329.7U Expired - Fee Related CN204514711U (en) | 2015-03-19 | 2015-03-19 | Fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204514711U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043858A (en) * | 2015-08-18 | 2015-11-11 | 无锡东仪制造科技有限公司 | Universal test machine jaw |
| CN105758725A (en) * | 2016-03-01 | 2016-07-13 | 银邦金属复合材料股份有限公司 | Measuring device and measuring method for welding seam strength |
| CN106483013A (en) * | 2016-11-28 | 2017-03-08 | 北京金风科创风电设备有限公司 | Clamping device and load testing machine |
| CN109490069A (en) * | 2018-12-29 | 2019-03-19 | 鹤壁市质量技术监督检验测试中心 | A kind of tension tester clamp |
| CN114010026A (en) * | 2021-11-16 | 2022-02-08 | 新晃侗族自治县易同云网科技有限公司 | Circulating display device is used in building material sale |
-
2015
- 2015-03-19 CN CN201520156329.7U patent/CN204514711U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043858A (en) * | 2015-08-18 | 2015-11-11 | 无锡东仪制造科技有限公司 | Universal test machine jaw |
| CN105043858B (en) * | 2015-08-18 | 2018-07-06 | 无锡东仪制造科技有限公司 | A kind of universal testing machine jaw |
| CN105758725A (en) * | 2016-03-01 | 2016-07-13 | 银邦金属复合材料股份有限公司 | Measuring device and measuring method for welding seam strength |
| CN105758725B (en) * | 2016-03-01 | 2019-03-29 | 银邦金属复合材料股份有限公司 | The measuring device and measuring method of weld strength |
| CN106483013A (en) * | 2016-11-28 | 2017-03-08 | 北京金风科创风电设备有限公司 | Clamping device and load testing machine |
| CN106483013B (en) * | 2016-11-28 | 2019-10-15 | 北京金风科创风电设备有限公司 | clamping device and load testing machine |
| CN109490069A (en) * | 2018-12-29 | 2019-03-19 | 鹤壁市质量技术监督检验测试中心 | A kind of tension tester clamp |
| CN109490069B (en) * | 2018-12-29 | 2020-04-10 | 盐城市景盛石化机械有限公司 | Tensile testing machine anchor clamps |
| CN114010026A (en) * | 2021-11-16 | 2022-02-08 | 新晃侗族自治县易同云网科技有限公司 | Circulating display device is used in building material sale |
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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 |
Granted publication date: 20150729 Termination date: 20160319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |