CN203231931U - Text clamp for automatically positioning tensile strength of screw - Google Patents
Text clamp for automatically positioning tensile strength of screw Download PDFInfo
- Publication number
- CN203231931U CN203231931U CN 201320008826 CN201320008826U CN203231931U CN 203231931 U CN203231931 U CN 203231931U CN 201320008826 CN201320008826 CN 201320008826 CN 201320008826 U CN201320008826 U CN 201320008826U CN 203231931 U CN203231931 U CN 203231931U
- Authority
- CN
- China
- Prior art keywords
- tensile strength
- pull bar
- anchor clamps
- screw
- contiguous block
- 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
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to the technical field of machinery, relates to a text clamp and in particular relates to a text clamp for automatically positioning tensile strength of a screw. The problems that the conventional text clamp is inconveniently operated, the clamp is required to be replaced according to the size of the test piece, the testing precision is low, and the like are solved. The text clamp for automatically positioning tensile strength of the screw comprises a first connecting piece and a second connecting piece, wherein a mounting seat used for positioning the head part of the screw to be tested is arranged on the first connecting piece; a pull rod is arranged on the second connecting piece; an adjustable clamping mechanism used for positioning a nail part of the screw to be tested is arranged between the mounting seat and the pull rod; when the pull rod axially moves away from the mounting seat, the pull rod can drive the adjustable clamping mechanism to lock and position the nail part of the screw to be tested. The text clamp has the advantages that the text clamp is reasonable in design, simple in structure, convenient to use and operate and high in testing precision, the clamping mechanism is not required to be replaced, the test cycle is shortened, and the thread tripping risk is reduced.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to test fixture, especially relates to a kind of automatic dog screw test for tensile strength anchor clamps.
Background technology
Along with machinery constantly develops to the direction of miniaturization, high speed, heavy loading, head has the screw of threaded fastener as the key member in the mechanical part, is also constantly developing to small size, high-intensity direction.But fracture is also following frequently, how accurately and rapidly to determine mechanical property and the fracture failure reason of screw, and is particularly important to the serviceable life and the reliability that improve mechanical assembly.And the fracture that when the screw fracture analysis, how to be cleaned, do not have distortion be the most basic in the failure Analysis of Bolt in Two process, also be most important link.Do not stipulate the unit clamp of screw tensile test in the national standard, so in actual screw tensile test process, often the screw material object need be processed into the master body that is fit to the testing machine chuck or change the direct clamping screw head of testing machine chuck and two ends, threaded portion, cause the fracture apperance distortion, the mechanics data deviation is bigger.In addition, adopt the method for direct clamp screws to increase the danger that screw thread is threaded off, both prolonged the test period, can cause damage to the operator again.
In order to improve the problem that prior art exists, people have carried out long-term exploration, have proposed various solutions.For example, at correlative technology field, Chinese patent literature discloses a kind of clamp structure [application number: 201010130597.9] of big specification bolt tension testing apparatus, comprise left and right two the stretching bars of extension test equipment and tested bolt, at the fixedly connected test fixture of left and right stretching bar difference, tested bolt penetrates in the circular hole of left and right test fixture, and bolt head and nut be the baffle plate of back-off both sides test fixture respectively; Perhaps, tested bolt is through lengthening cover and transition bolt, the baffle plate of difference back-off both sides test fixture.
Such scheme has improved prior art to a certain extent, makes that the scope of test bolt can be between M30 to M90, and quality control and the assurance of the extensive bolt in the engineering of attaching most importance to field provide convenience, and correctness and the accuracy of test result also increase.Defectives such as yet still there is use operation inconvenience in such scheme, need change anchor clamps according to the test specimen size, and screw thread dropout risk is bigger, and testing result is inaccurate.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of reasonable in design, simple in structure, uses easy to operately, and the measuring accuracy height need not to change the automatic dog screw test for tensile strength anchor clamps of clamp system.
For achieving the above object, the utility model has adopted following technical proposal: this is dog screw test for tensile strength anchor clamps automatically, comprise first web member and second web member, described first web member is provided with the mount pad for location screw head to be tested, described second web member is provided with pull bar, be provided with the adjustable clamp system for location screw nail to be tested portion between described mount pad and the pull bar, and can drive described adjustable clamp system with the nail portion locking positioning of screw to be tested when pull rod shaft pull bar when moving away from mount pad.Adjustable clamp system can be adjusted according to the size specification of screw to be measured, need not to change clamp system, has shortened the test period, has improved measuring accuracy.
Further, in above-mentioned automatic dog screw test for tensile strength anchor clamps, described adjustable clamp system comprises the tubular overcoat that fixedly installs by brake structure, being provided with taper lock in the tubular overcoat grips, described taper lock is gripped an end and is had some jaws for locking screw nail to be tested portion, described tubular outer casing inner wall is provided with the circular cone that cooperates with above-mentioned jaw, and the other end and pull bar that described taper lock is gripped are connected.When driving taper lock, pull rod shaft pull bar when moving away from mount pad grips nail portion locking positioning with screw to be tested.
Further, in above-mentioned automatic dog screw test for tensile strength anchor clamps, described cone locking folder comprises column, end at column is provided with the adapter sleeve that is connected as a single entity with it, described adapter sleeve links to each other with pull bar, the other end of described column is provided with above-mentioned jaw, and each jaw surrounds ringwise, and one of them jaw and column are connected as a single entity.The version that the taper lock is here gripped can clamp the alternative that needs are taked multiple various kinds according to reality.
As preferably, in above-mentioned automatic dog screw test for tensile strength anchor clamps, described adapter sleeve is connected by demountable structure and pull bar.
Further, in above-mentioned automatic dog screw test for tensile strength anchor clamps, described adapter sleeve is connected by helicitic texture and pull bar.
In above-mentioned automatic dog screw test for tensile strength anchor clamps, the end face of described mount pad is provided with bar-shaped trough, the bottom of this bar-shaped trough is provided with width greater than the storage tank of bar-shaped trough, the inner sealing of described bar-shaped trough and storage tank, the sidepiece that described bar-shaped trough and storage tank outer end extend to mount pad forms the inverted T shape entrance that enters for screw head to be tested.
In above-mentioned automatic dog screw test for tensile strength anchor clamps, described mount pad is connected by first disassembly and assembly structure and first web member; Described pull bar is connected by second disassembly and assembly structure and second web member.
In above-mentioned automatic dog screw test for tensile strength anchor clamps, described first disassembly and assembly structure comprises first contiguous block that is located at the first web member end, offer first connecting hole at first contiguous block, be equipped with first connecting pin in first connecting hole, described mount pad is located in first contiguous block and by first connecting pin and is connected with first contiguous block; Described second disassembly and assembly structure comprises second contiguous block that is located at the second web member end, offer second connecting hole at second contiguous block, be equipped with second connecting pin in second connecting hole, described pull bar is located in second contiguous block and by second connecting pin and is connected with second contiguous block.
In above-mentioned automatic dog screw test for tensile strength anchor clamps, the outer face of described jaw is all curved, and after the outer face amalgamation of each jaw curved.
As a kind of technical scheme of comparatively optimizing, in above-mentioned automatic dog screw test for tensile strength anchor clamps, described brake structure comprises that at least one opens in the pilot hole of tubular overcoat sidepiece, is respectively equipped with the arresting nut that the tubular overcoat can be fixed on the frame in each pilot hole.The brake structure here can and be located the alternative that needs are taked multiple various kinds according to the reality connection.
Compared with prior art, this automatically the advantage of dog screw test for tensile strength anchor clamps be: reasonable in design, simple in structure, uses easy to operately, the measuring accuracy height need not to change clamp system, has shortened the test period, has reduced the risk of screw thread dropout.
Description of drawings
Fig. 1 is the stereographic map that the utility model provides.
Fig. 2 is the sectional structure synoptic diagram that the utility model provides.
Fig. 3 is the main TV structure synoptic diagram that the utility model provides.
Among the figure, first web member 1, second web member 2, screw to be tested 3, mount pad 4, bar-shaped trough 41, storage tank 42, inverted T shape entrance 43, pull bar 5, adjustable clamp system 6, tubular overcoat 61, circular cone 611, taper lock grip 62, jaw 621, column 622, adapter sleeve 623, arcwall face 624, brake structure 7, pilot hole 71, arresting nut 72, first contiguous block 8, first connecting hole 81, first connecting pin 82, second contiguous block 9, second connecting hole 91, second connecting pin 92.
Embodiment
As Figure 1-3, this is dog screw test for tensile strength anchor clamps automatically, comprise first web member 1 and second web member 2, be provided with for the mount pad 4 of locating screw 3 heads to be tested at first web member 1, be provided with pull bar 5 at second web member 2, between mount pad 4 and pull bar 5, be provided with the adjustable clamp system 6 for location screw to be tested 3 nail portions, and pull bar 5 can drive described adjustable clamp system 6 with the nail portion locking positioning of screw 3 to be tested when pull bar 5 axially moves away from mount pad 4.Adjustable clamp system 6 can be adjusted according to the size specification of screw 3 to be measured, need not to change clamp system, has shortened the test period, has improved measuring accuracy.
As a kind of technical scheme of comparatively optimizing, in the present embodiment, adjustable clamp system 6 comprises the tubular overcoat 61 that fixedly installs by brake structure 7, in tubular overcoat 61, be provided with taper lock and grip 62, taper lock is gripped 62 1 ends and is had some jaws 621 for locking screw to be tested 3 nail portions, be provided with the circular cone 611 that cooperates with above-mentioned jaw 621 at tubular overcoat 61 inwalls, taper lock is gripped 62 the other end and pull bar 5 and is connected, taper lock is gripped 62 and is comprised column 622, end at column 622 is provided with the adapter sleeve 623 that is connected as a single entity with it, above-mentioned adapter sleeve 623 links to each other with pull bar 5, the other end at column 622 is provided with above-mentioned jaw 621, each jaw 621 surrounds ringwise, and one of them jaw 621 is connected as a single entity with column 622, the outer face of jaw 621 is all curved, and after the outer face amalgamation of each jaw 621 curved 624, brake structure 7 comprises that at least one opens in the pilot hole 71 of tubular overcoat 61 sidepieces, is respectively equipped with the arresting nut 72 that tubular overcoat 61 can be fixed on the frame in each pilot hole 71.
As preferably, in the present embodiment, first disassembly and assembly structure comprises first contiguous block 8 that is located at first web member, 1 end, offer first connecting hole 81 at first contiguous block 8, be equipped with first connecting pin 82 in first connecting hole 81, above-mentioned mount pad 4 is located in first contiguous block 8 and by first connecting pin 82 and is connected with first contiguous block 8; Second disassembly and assembly structure comprises second contiguous block 9 that is located at second web member, 2 ends, offer second connecting hole 91 at second contiguous block 9, be equipped with second connecting pin 92 in second connecting hole 91, above-mentioned pull bar 5 is located in second contiguous block 9 and by second connecting pin 92 and is connected with second contiguous block 9.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used first web member 1 morely, second web member 2, screw 3 to be tested, mount pad 4, bar-shaped trough 41, storage tank 42, inverted T shape entrance 43, pull bar 5, adjustable clamp system 6, tubular overcoat 61, circular cone 611, taper lock grips 62, jaw 621, column 622, adapter sleeve 623, arcwall face 624, brake structure 7, pilot hole 71, arresting nut 72, first contiguous block 8, first connecting hole 81, first connecting pin 82, second contiguous block 9, second connecting hole 91, second connecting pin, 92 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily, and they are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. automatic dog screw test for tensile strength anchor clamps, comprise first web member (1) and second web member (2), described first web member (1) is provided with the mount pad (4) for location screw to be tested (3) head, described second web member (2) is provided with pull bar (5), it is characterized in that, be provided with the adjustable clamp system (6) for location screw to be tested (3) nail portion between described mount pad (4) and the pull bar (5), and pull bar (5) can drive described adjustable clamp system (6) with the nail portion locking positioning of screw to be tested (3) when pull bar (5) is axially mobile away from mount pad (4).
2. automatic dog screw test for tensile strength anchor clamps according to claim 1, it is characterized in that, described adjustable clamp system (6) comprises the tubular overcoat (61) that fixedly installs by brake structure (7), in tubular overcoat (61), be provided with taper lock and grip (62), described taper lock is gripped (62) one ends and is had some jaws (621) for locking screw to be tested (3) nail portion, described tubular overcoat (61) inwall is provided with the circular cone (611) that cooperates with above-mentioned jaw (621), and the other end and pull bar (5) that described taper lock is gripped (62) are connected.
3. automatic dog screw test for tensile strength anchor clamps according to claim 2, it is characterized in that, described taper lock is gripped (62) and is comprised column (622), end at column (622) is provided with the adapter sleeve (623) that is connected as a single entity with it, described adapter sleeve (623) links to each other with pull bar (5), the other end of described column (622) is provided with above-mentioned jaw (621), each jaw (621) surrounds ringwise, and one of them jaw (621) is connected as a single entity with column (622).
4. automatic dog screw test for tensile strength anchor clamps according to claim 3 is characterized in that, described adapter sleeve (623) is connected by demountable structure and pull bar (5).
5. automatic dog screw test for tensile strength anchor clamps according to claim 4 is characterized in that, described adapter sleeve (623) is connected by helicitic texture and pull bar (5).
6. according to claim 1 or 2 or 3 or 4 or 5 described automatic dog screw test for tensile strength anchor clamps, it is characterized in that, the end face of described mount pad (4) is provided with bar-shaped trough (41), the bottom of this bar-shaped trough (41) is provided with width greater than the storage tank (42) of bar-shaped trough (41), the inner sealing of described bar-shaped trough (41) and storage tank (42), the sidepiece that described bar-shaped trough (41) and storage tank (42) outer end extend to mount pad (4) forms the inverted T shape entrance (43) that enters for screw to be tested (3) head.
7. automatic dog screw test for tensile strength anchor clamps according to claim 6 is characterized in that, described mount pad (4) is connected by first disassembly and assembly structure and first web member (1); Described pull bar (5) is connected by second disassembly and assembly structure and second web member (2).
8. automatic dog screw test for tensile strength anchor clamps according to claim 7, it is characterized in that, described first disassembly and assembly structure comprises first contiguous block (8) that is located at first web member (1) end, offer first connecting hole (81) at first contiguous block (8), be equipped with first connecting pin (82) in first connecting hole (81), described mount pad (4) is located in first contiguous block (8) and by first connecting pin (82) and is connected with first contiguous block (8); Described second disassembly and assembly structure comprises second contiguous block (9) that is located at second web member (2) end, offer second connecting hole (91) at second contiguous block (9), be equipped with second connecting pin (92) in second connecting hole (91), described pull bar (5) is located in second contiguous block (9) and by second connecting pin (92) and is connected with second contiguous block (9).
9. according to claim 2 or 3 or 4 or 5 described automatic dog screw test for tensile strength anchor clamps, it is characterized in that the outer face of described jaw (621) is all curved, and after the outer face amalgamation of each jaw (621) curved (624).
10. according to claim 2 or 3 or 4 or 5 described automatic dog screw test for tensile strength anchor clamps, it is characterized in that, described brake structure (7) comprises that at least one opens in the pilot hole (71) of tubular overcoat (61) sidepiece, is respectively equipped with the arresting nut (72) that tubular overcoat (61) can be fixed on the frame in each pilot hole (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008826 CN203231931U (en) | 2013-01-08 | 2013-01-08 | Text clamp for automatically positioning tensile strength of screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008826 CN203231931U (en) | 2013-01-08 | 2013-01-08 | Text clamp for automatically positioning tensile strength of screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203231931U true CN203231931U (en) | 2013-10-09 |
Family
ID=49288051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320008826 Expired - Fee Related CN203231931U (en) | 2013-01-08 | 2013-01-08 | Text clamp for automatically positioning tensile strength of screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203231931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091161A (en) * | 2013-01-08 | 2013-05-08 | 常州华厦建设工程质量检测有限公司 | Tensile strength test clamp of automatic positioning screw |
-
2013
- 2013-01-08 CN CN 201320008826 patent/CN203231931U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091161A (en) * | 2013-01-08 | 2013-05-08 | 常州华厦建设工程质量检测有限公司 | Tensile strength test clamp of automatic positioning screw |
| CN103091161B (en) * | 2013-01-08 | 2016-06-08 | 常州华厦建设工程质量检测有限公司 | Automatic dog screw tensile strength test clamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201852741U (en) | Special fixture for bolt tension test | |
| CN110926400B (en) | Aperture measuring device | |
| CN203231931U (en) | Text clamp for automatically positioning tensile strength of screw | |
| CN103091161A (en) | Tensile strength test clamp of automatic positioning screw | |
| CN103487298B (en) | A kind of X-ray diffraction test fiber specimen holder | |
| CN203116896U (en) | Detection tool of torsion spring | |
| CN107121272B (en) | Multistation climbers testing machine | |
| CN203534502U (en) | Clamping seat for measuring degree of symmetry of blade root of blade | |
| CN204882246U (en) | Pulling force machine is surveyed to iron wire | |
| CN106004097B (en) | Suitable for the mark fixture and mark work station of various | |
| CN106018546B (en) | Test piece auxiliary device for magnetic powder detection sensitivity verification | |
| CN204924530U (en) | Car rubber spare part tensile test device | |
| CN205175326U (en) | Axiality detects modular fixture | |
| CN205096882U (en) | A positioning fixture for radial spot facing work of push rod | |
| CN209894510U (en) | Equipment for enabling tree growth cone to horizontally penetrate through tree center point | |
| CN203745301U (en) | Auxiliary device for measuring broken tensile test sample | |
| CN203324119U (en) | Torsion test machine for carbon medium tube of carbon fiber battledore | |
| CN208109364U (en) | A kind of axle elastic spring test tool | |
| CN204819249U (en) | Gearbox PB parking ware moment of torsion detects supplementary anchor clamps | |
| CN211627204U (en) | Tensile testing machine with regulatory function | |
| CN208409216U (en) | A kind of Quick-positioning clamp for numerically controlled wire cutting machine | |
| CN209894149U (en) | Contact net simulation building structure with adjustable geometric parameters | |
| CN220490606U (en) | Mortar strength detection device | |
| CN213917909U (en) | Mechanical dimension measuring clamp | |
| CN203203577U (en) | Profile detection device |
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: 20131009 Termination date: 20160108 |