CN212254860U - Blind rivet pretightening force test fixture - Google Patents
Blind rivet pretightening force test fixture Download PDFInfo
- Publication number
- CN212254860U CN212254860U CN202020883093.8U CN202020883093U CN212254860U CN 212254860 U CN212254860 U CN 212254860U CN 202020883093 U CN202020883093 U CN 202020883093U CN 212254860 U CN212254860 U CN 212254860U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- test fixture
- self
- assembly drum
- fixed cylinder
- 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.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses self-plugging rivet pretightning force test fixture. The clamp is of a symmetrical structure, each symmetrical part comprises a fixed cylinder, a connecting rod and an assembling cylinder, the utility model adopts a thread-shoulder type connecting structure, the connecting rod and the assembling cylinder can be prevented from loosening and slipping through threaded connection, and the stability of a connecting system and the safety of a test are ensured; when the tension testing machine is connected, the shoulder structural design can be integrally placed into the tension testing machine after the whole device is installed, so that testing personnel can conveniently and smoothly install and uninstall the tension testing machine, instantaneous clamping force generated by clamping before testing is avoided, and the accuracy of a testing result is ensured.
Description
Technical Field
The utility model relates to a metallic material mechanical properties is experimental and detect technical field, concretely relates to self-plugging rivet pretightning force test fixture.
Background
The paddle type gasket method is widely applied to detection of the pre-tightening force of the blind rivet, and the principle is that a blind rivet sample is installed in two assembling cylinders and then connected to a tensile testing machine, and tensile force is applied to two ends of the blind rivet sample, so that the pre-tightening force value is obtained. The existing test fixture is characterized in that an assembly cylinder is punched and then connected with a rectangular connecting rod through a pin, and the rectangular connecting rod is mainly connected with a tensile testing machine through a pin and directly clamped. The pin connection has the advantages of convenience and rapidness, and has the defects of not firm enough, frequently occurring pin sliding, and easy falling of the whole connection system during multipoint connection, thereby causing damage to a test fixture and a test sample; the stability of structure can be increased with tensile testing machine direct centre gripping test fixture, but when the installation need control test fixture's clamping position on one side, adjust test space height through tensile testing machine on one side, the operator is difficult to accomplish the installation alone, the operation of not being convenient for, very big potential safety hazard in addition because can produce instantaneous clamping-force in the clamping process, can cause experimental data inaccurate or experimental data invalid moreover.
Disclosure of Invention
Based on the not enough of prior art, the utility model aims to provide a self-plugging rivet pretightning force test anchor clamps. Under the condition of ensuring reasonable design structure and sufficient strength, the invention provides the thread-shoulder type test fixture, which can realize quick and convenient installation and disassembly of the pretightening force test device and ensure the accuracy of test results. The scheme of the utility model is as follows:
the utility model provides a self-plugging rivet pretightning force test fixture, symmetrical structure, each symmetry part includes a fixed cylinder, the connecting rod, the assembly drum, a fixed cylinder is the cavity tubular structure of taking the tailrod, tailrod and tensile testing machine fixed connection, open laterally has a door type window, open the fixed cylinder bottom has the U type groove that uses with the connecting rod cooperation, connecting rod one end is the external screw thread, be used for connecting the assembly drum, the other end is with U type groove complex shoulder formula structure, the assembly drum is one end confined tubular structure, the open end inboard is the internal thread with connecting rod complex, open the bottom has self-plugging rivet sample mounting hole, the self-plugging rivet sample is installed in the mounting hole of a set of assembly drum of symmetry, even become integrative back with the connecting rod again, install on tensile testing machine's a fixed cylinder.
The utility model adopts a thread-shoulder type connecting structure, the connecting rod and the assembling cylinder are connected by the thread, so that the connecting rod and the assembling cylinder can not loosen and slide, and the stability of the connecting system and the safety of the test are ensured; when the tension testing machine is connected, the shoulder structural design can be integrally placed into the tension testing machine after the whole device is installed, so that testing personnel can conveniently and smoothly install and uninstall the tension testing machine, instantaneous clamping force generated by clamping before testing is avoided, and the accuracy of a testing result is ensured.
The present application will be described in further detail with reference to the accompanying drawings of embodiments
Drawings
FIG. 1 is a schematic view of a test fixture
Legend numbering illustrates: 1, fixing the cylinder; 2, a door type window; 3U-shaped grooves; 4 connecting rods; 5 assembling the cylinder; 6 self-plugging rivet sample mounting hole
Detailed Description
The utility model provides a self-plugging rivet pretightning force test fixture, symmetrical structure, each symmetry part includes a fixed cylinder 1, connecting rod 4, assembly drum 5, a fixed cylinder 1 is the cavity tubular structure of taking the tailboom, tailboom and tensile testing machine fixed connection, open the side has a door type window 2, open fixed cylinder 1 bottom has U type groove 3 with connecting rod 4 cooperation use, connecting rod 4 one end is the external screw thread, be used for connecting assembly drum 5, the other end is the shoulder formula structure with U type groove 3 complex, assembly drum 5 is the tubular structure of one end confined, the open end inboard is the internal thread with connecting rod 4 complex, open bottom has self-plugging rivet sample mounting hole 6, the self-plugging rivet sample is installed in the mounting hole of a set of assembly drum 5 of symmetry, after being linked together again with connecting rod 4, install on tensile testing machine's a fixed cylinder 1.
Before the test, a self-plugging rivet pretightening force test piece is arranged at the bottom ends of the two assembling cylinders 5, and the three parts are fixed into a whole. The assembling cylinder 5 is matched and connected with the external thread end of the connecting rod 4, and the connection is safe, stable, firm and reliable. After both ends are connected, according to the total length of the whole device after connection, the distance between the fixed cylinders 1 fixed at the upper end and the lower end of the tensile testing machine is adjusted through the tensile testing machine, after the distance is adjusted properly, shoulder ends of connecting rods 4 at both ends of the whole device are respectively put into the door-shaped windows 2 of the upper fixed cylinder 1 and the lower fixed cylinder 1, the fixed cylinders are pushed along the U-shaped grooves 3 of the fixed cylinders 1, and the fixed cylinders are clamped into fixed positions to complete installation.
The design structure is simple and practical, the operation is convenient and safe, an operator can finish the test independently, the whole installation process can not generate additional force, and the accuracy of the test result is ensured.
Claims (1)
1. The utility model provides a self-plugging rivet pretightning force test fixture, its characterized in that test fixture is symmetrical structure, each symmetry part includes the solid fixed cylinder, the connecting rod, the assembly drum, the solid fixed cylinder is the cavity tubular structure of taking the tailboom, tailboom and tensile test machine fixed connection, open the side has a door type window, solid fixed cylinder bottom is opened has the U type groove of using with the connecting rod cooperation, connecting rod one end is the external screw thread, be used for connecting the assembly drum, the other end is the platform shoulder formula structure with U type groove complex, the assembly drum is the tubular structure of one end confined, the open end inboard is the internal thread with connecting rod complex, open the bottom has self-plugging rivet sample mounting hole, the self-plugging rivet sample is installed in the mounting hole of a set of assembly drum of symmetry, even become an organic whole with the connecting rod again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883093.8U CN212254860U (en) | 2020-05-22 | 2020-05-22 | Blind rivet pretightening force test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883093.8U CN212254860U (en) | 2020-05-22 | 2020-05-22 | Blind rivet pretightening force test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212254860U true CN212254860U (en) | 2020-12-29 |
Family
ID=73976869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020883093.8U Active CN212254860U (en) | 2020-05-22 | 2020-05-22 | Blind rivet pretightening force test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212254860U (en) |
-
2020
- 2020-05-22 CN CN202020883093.8U patent/CN212254860U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208588614U (en) | A kind of static load anchoring performance experimental rig | |
| CN202735158U (en) | Tensile strength detecting clamp of double thread screw | |
| CN212254860U (en) | Blind rivet pretightening force test fixture | |
| CN215003479U (en) | Device convenient to narrow space crack detects | |
| CN210893912U (en) | Anti-skid steel wire tensile testing machine | |
| CN203249830U (en) | Test instrument for tensile strength of zipper pull head | |
| CN210346965U (en) | Clamping jaw pressure detection device | |
| CN208076136U (en) | Steel tube fastener multifunctional test machine | |
| CN210953635U (en) | Bolt tensile strength detects instrument | |
| CN215004722U (en) | Detection device is used in stock production | |
| CN220339873U (en) | Portable digital display optical cable detection tool | |
| CN220751806U (en) | Anchor chain breaking testing machine | |
| CN216747092U (en) | Screw rod pulling force detects anchor clamps | |
| CN220625729U (en) | Workpiece connection tool for automobile display screen reset fatigue detection device | |
| CN110793859A (en) | Modularization steel wire swivel nut strength test device | |
| CN210863119U (en) | Strength testing device is used in zip fastener production | |
| CN217403976U (en) | Tensile chuck device for metal pipe tensile test | |
| CN218629259U (en) | A sample places auxiliary device for tensile test | |
| CN203249826U (en) | Testing clamp for tensile strength of bolt | |
| CN103454143A (en) | Clamp for measuring tension corresponding to torque of bolt | |
| CN208520557U (en) | One kind can be used for more diameter lag bolt tensile strength detection clamps | |
| CN219957150U (en) | Rubber tension testing platform | |
| CN215065197U (en) | Looseness testing device for axial load pull-down rivet connection | |
| CN213397929U (en) | Test fixture for measuring tension of safety buckle | |
| CN216483874U (en) | Eccentric shaft pin drawing force test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |