CN211388486U - Clamp for material elongation test - Google Patents
Clamp for material elongation test Download PDFInfo
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- CN211388486U CN211388486U CN202021508356.3U CN202021508356U CN211388486U CN 211388486 U CN211388486 U CN 211388486U CN 202021508356 U CN202021508356 U CN 202021508356U CN 211388486 U CN211388486 U CN 211388486U
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Abstract
The utility model discloses a clamp for material elongation test, which comprises an upper clamp component and a lower clamp component which are symmetrically arranged from top to bottom, wherein the upper clamp component comprises an installation seat plate with an inverted U-shaped structure, a horizontally arranged solid rotating shaft and a horizontally arranged hollow rotating shaft are installed in the lower end part of the installation seat plate, a first installation plate is installed at the inner end of the solid rotating shaft, a second installation plate is installed at the inner end of the hollow rotating shaft, and the first installation plate and the second installation plate are symmetrically arranged; two parallel barrels are arranged between the first mounting plate and the second mounting plate, a gap for penetrating the strip-shaped test material is arranged between the barrels, notches are arranged at opposite positions inside the barrel main body, and expansion bodies are respectively arranged inside the barrels; the utility model discloses can realize the automatic clamping of banded material sample, can ensure that the clamp force of sample clamping at every turn is invariable, and the clamping process can not cause the damage to the sample.
Description
Technical Field
The utility model relates to an anchor clamps, specific theory relates to an anchor clamps are used in material extension test belongs to clamping equipment technical field.
Background
With the progress of material technology, many materials with soft texture and high elongation exceeding 1000% appear in the fields of PVC, PE and the like.
The clamp is one of indispensable spare parts in the tensile testing machine. The clamps can be roughly classified into: tensile type clamps, compression type clamps, bending type clamps, peeling type clamps, shearing type clamps, and the like. Of which the stretch type is the most commonly used one. The traditional tensile testing machine clamp generally adopts manual clamping when detecting a new belt-shaped material, the manual clamping efficiency is low, the clamping force is difficult to control by the manual clamping, the sample is damaged at a clamping opening due to over-tightening, and the sample slips due to over-loosening, so that certain errors are brought to a testing result; the clamping mouth part of the traditional clamp is made of rigid materials, and when the clamp is used for carrying out elongation test on materials such as PVC (polyvinyl chloride), PE (polyethylene) and the like, a workpiece is easily clamped to be broken.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to not enough in the background art, provide a material extension test is with anchor clamps, can realize the automatic clamping of banded material sample, can ensure the clamp force of sample clamping at every turn invariable, and the clamping process can not cause the damage to the sample.
For solving the technical problem, the utility model discloses a following technical scheme:
a clamp for a material elongation test comprises an upper clamp assembly and a lower clamp assembly which are arranged in an up-and-down symmetrical mode, wherein the upper clamp assembly comprises an installation seat plate with an inverted U-shaped structure, a horizontally arranged solid rotating shaft and a horizontally arranged hollow rotating shaft are installed in the lower end portion of the installation seat plate, a first installation plate is installed at the inner end of the solid rotating shaft, a second installation plate is installed at the inner end of the hollow rotating shaft, and the first installation plate and the second installation plate are arranged in a symmetrical mode; install two barrels that set up side by side between first mounting panel and the second mounting panel, be equipped with the clearance that is used for wearing to establish banded test material between the barrel, seted up the breach on the inside relative position of barrel main part, the inflation body is installed respectively to the inside of barrel.
Furthermore, the solid rotating shaft and the hollow rotating shaft are rotatably supported through bearing seats on the outer sides of the mounting seat plates respectively, and the solid rotating shaft and the hollow rotating shaft are symmetrically arranged and have collinear central lines.
Furthermore, connecting pipes are respectively installed at the end parts of the expansion bodies close to the second mounting plate and are respectively communicated with the outlets of the flow passages in the second mounting plate.
Furthermore, a flow channel is arranged in the second mounting plate, and the flow channel is provided with an inlet and two outlets; and the inlet of the flow channel is communicated with the inner cavity of the hollow rotating shaft.
Furthermore, a rotary joint is mounted at the outer end part of the hollow rotating shaft and communicated with the medium inlet pipe.
Furthermore, a rotating motor which is horizontally arranged is installed inside the installation seat plate, the rotating motor is connected with a speed reducer, and an output shaft of the speed reducer is in bevel gear meshing connection with the solid rotating shaft.
Furthermore, the upper clamp assembly is connected with the tension meter through the hanging piece, and the top of the tension meter is connected with the lifting seat; the lifting seat is in threaded connection with a lead screw, and the lead screw is installed in a vertical box body of the L-shaped box body.
Furthermore, the L-shaped box body consists of a vertical box body and a horizontal box body, a lifting motor is arranged in the horizontal box body, and the lifting motor realizes the lifting of the lifting seat through a lead screw; the lower clamp assembly is installed on the fixing seat, and the fixing seat is arranged on the inner side of the lower end portion of the vertical box body.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model discloses in, gaseous state or liquid medium advance the pipe through the medium in proper order, rotary joint, hollow rotating shaft, the runner in the second mounting panel, the connecting pipe gets into two inflation body inner chambers, make the inflation body expand and compress tightly the banded test material in the clearance, the clamp force of banded test material passes through medium pressure control, be convenient for realize the invariant of banded test material clamping force, then the motor realizes the rotation of barrel and inflation body, and then realize the rotation of banded test material between two inflation bodies, thereby fix banded test material around establishing outside the barrel, accomplish final clamping process, the clamping process is automatic to be accomplished; the clamping state of the strip-shaped test material can be released by releasing the medium with pressure in the expansion body and contracting the expansion body, so that the strip-shaped test material can be easily taken out; the utility model realizes the sample clamping through the expansion body, and can not damage the sample; the utility model discloses not only can realize the self-holding of banded test material and press from both sides, can also be used to realize the automatic pine of banded test material and hold.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view at M in FIG. 1;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the barrel and expansion body;
in the figure, 1-an upper clamp assembly, 2-a lower clamp assembly, 3-a pendant, 4-a tension meter, 5-a lifting seat, 6-a lead screw, 7-an L-shaped box body, 8-a lifting motor, 9-a mounting seat plate, 10-a solid rotating shaft, 11-a hollow rotating shaft, 12-a bearing seat, 13-a first mounting plate, 14-a second mounting plate, 15-a barrel body, 16-a gap, 17-an expansion body, 18-a connecting pipe, 19-a flow channel, 20-a rotary joint, 21-a speed reducer, 22-a rotary motor and 23-a fixed seat.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model provides a clamp for material elongation test, which comprises an upper clamp component 1 and a lower clamp component 2 which are arranged in an up-and-down symmetry, wherein the upper clamp component 1 is connected with a tension meter 4 through a hanging part 3, and the top of the tension meter 4 is connected with a lifting seat 5; the lifting seat 5 is in threaded connection with the lead screw 6, the lead screw 6 is installed in a vertical box body of the L-shaped box body 7, the L-shaped box body 7 consists of the vertical box body and a horizontal box body, a lifting motor 8 is installed in the horizontal box body, and the lifting motor 8 drives the lead screw 6 to rotate so as to lift the lifting seat 5; lower clamp assembly 2 installs on fixing base 23, and fixing base 23 sets up the lower tip inboard at vertical box.
Go up anchor clamps subassembly 1 and include the installation bedplate 9 of type of falling U structure, install the solid pivot 10 and the hollow pivot 11 that the level set up in the tip under installation bedplate 9, solid pivot 10 and hollow pivot 11 rotate the support through the bearing frame 12 in the installation bedplate 9 outside respectively, and solid pivot 10 and hollow pivot 11 symmetry set up and the central line collineation.
A first mounting plate 13 is mounted at the inner end of the solid rotating shaft 10, a second mounting plate 14 is mounted at the inner end of the hollow rotating shaft 11, and the first mounting plate 13 and the second mounting plate 14 are symmetrically arranged; two cylinders 15 arranged side by side are arranged between the first mounting plate 13 and the second mounting plate 14, and a gap 16 for penetrating the strip-shaped test material is arranged between the cylinders 15; the relative position of the inside of the main body of the cylinder body 15 is provided with a notch, the inside of the cylinder body 15 is respectively provided with expansion bodies 17, the expansion bodies 17 can be expanded after being filled with gas or liquid media, and the two adjacent expansion bodies 17 are abutted after being expanded to compress the strip-shaped test material in the gap 16.
Connecting pipes 18 are respectively arranged at the end parts of the expansion bodies 17 close to the second mounting plate 14, and the connecting pipes 18 are respectively communicated with the outlets of the flow channels 19 in the second mounting plate 14; a flow channel 19 is arranged in the second mounting plate 14, and the flow channel 19 is provided with an inlet and two outlets; the inlet of the flow passage 19 is communicated with the inner cavity of the hollow rotating shaft 11; the outer end part of the hollow rotating shaft 11 is provided with a rotary joint 20, and the rotary joint 20 is communicated with a medium inlet pipe; gaseous or liquid medium sequentially passes through the medium inlet pipe, the rotary joint 20, the hollow rotating shaft 11, the flow channel 19 in the second mounting plate 14 and the connecting pipe 18 and enters the expansion body 17, so that the expansion body 17 is expanded.
A horizontally arranged rotating motor 22 is arranged in the mounting seat plate 9, and the rotating motor 22 is connected with a speed reducer 21; an output shaft of the speed reducer 21 is in bevel gear meshing connection with the solid rotating shaft 10; the rotation of solid pivot 10 is realized to rotating electrical machines 22 and speed reducer 21, realizes the rotation of first mounting panel 13, barrel 15 and inflation body 17, and then realizes the rotation of banding test material between two inflation bodies 17 to accomplish the banding test material around establishing and fixing at the barrel 15 outside, accomplish the clamping, be convenient for accomplish subsequent test.
The utility model discloses a concrete theory of operation:
the upper clamp assembly 1 and the lower clamp assembly 2 have the same structure and the same clamping mode;
when the strip-shaped test material needs to be clamped, firstly, one end of the strip-shaped test material is inserted into the gap 16, then a gaseous or liquid medium sequentially passes through the medium inlet pipe, the rotary joint 20, the hollow rotary shaft 11, the flow channel 19 in the second mounting plate 14 and the connecting pipe 18 to enter the inner cavities of the two expansion bodies 17, so that the expansion bodies 17 are expanded, the strip-shaped test material in the gap 16 is compressed after the expansion bodies 17 are expanded, the clamping force of the strip-shaped test material is controlled by the pressure of the medium, the clamping force of the strip-shaped test material is constant, then the rotary motor 22 and the speed reducer 21 drive the solid rotary shaft 10 to rotate, so that the first mounting plate 13, the cylinder 15 and the expansion bodies 17 rotate, further the rotation of the strip-shaped test material between the two expansion bodies 17 is realized, and the strip-shaped test material is wound and fixed outside the cylinder;
when the belt-shaped test material is tested and the clamping needs to be released, the rotating motor 22 rotates reversely to enable the cylinder body 15 to restore to the initial position, then the medium with pressure in the expansion body 17 is released, the expansion body 17 contracts, the clamping state of the belt-shaped test material is released, and therefore the belt-shaped test material can be taken out easily.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (8)
1. The utility model provides a material elongation test is with anchor clamps which characterized in that: the clamp comprises an upper clamp assembly (1) and a lower clamp assembly (2) which are arranged in an up-down symmetrical manner, wherein the upper clamp assembly (1) comprises an installation base plate (9) with an inverted U-shaped structure, a horizontally arranged solid rotating shaft (10) and a horizontally arranged hollow rotating shaft (11) are installed in the lower end part of the installation base plate (9), a first installation plate (13) is installed at the inner end of the solid rotating shaft (10), a second installation plate (14) is installed at the inner end of the hollow rotating shaft (11), and the first installation plate (13) and the second installation plate (14) are symmetrically arranged; install two barrel (15) that set up side by side between first mounting panel (13) and second mounting panel (14), be equipped with between barrel (15) and be used for wearing to establish banded test material's clearance (16), set up jaggedly on the inside relative position of barrel (15) main part, the inflation body (17) are installed respectively to the inside of barrel (15).
2. The fixture for material elongation testing according to claim 1, wherein: solid pivot (10) and hollow pivot (11) rotate the support through bearing frame (12) in installation bedplate (9) outside respectively, and solid pivot (10) and hollow pivot (11) symmetry set up and the central line collineation.
3. The fixture for material elongation testing according to claim 1, wherein: and connecting pipes (18) are respectively arranged at the end parts of the expansion bodies (17) close to the second mounting plate (14), and the connecting pipes (18) are respectively communicated with the outlets of the flow channels (19) in the second mounting plate (14).
4. The jig for testing elongation of materials according to claim 3, wherein: a flow channel (19) is arranged in the second mounting plate (14), and the flow channel (19) is provided with an inlet and two outlets; and the inlet of the flow passage (19) is communicated with the inner cavity of the hollow rotating shaft (11).
5. The fixture for material elongation testing according to claim 1, wherein: and a rotary joint (20) is mounted at the outer end part of the hollow rotating shaft (11), and the rotary joint (20) is communicated with the medium inlet pipe.
6. The fixture for material elongation testing according to claim 1, wherein: the installation seat plate (9) is internally provided with a rotating motor (22) which is horizontally arranged, the rotating motor (22) is connected with a speed reducer (21), and an output shaft of the speed reducer (21) is in bevel gear meshing connection with the solid rotating shaft (10).
7. The fixture for material elongation testing according to claim 1, wherein: the upper clamp assembly (1) is connected with the tension meter (4) through the hanging piece (3), and the top of the tension meter (4) is connected with the lifting seat (5); the lifting seat (5) is in threaded connection with the lead screw (6), and the lead screw (6) is installed in a vertical box body of the L-shaped box body (7).
8. The jig for testing elongation of materials according to claim 7, wherein: the L-shaped box body (7) consists of a vertical box body and a horizontal box body, a lifting motor (8) is installed in the horizontal box body, and the lifting motor (8) realizes the lifting of the lifting seat (5) through a lead screw (6); lower clamp subassembly (2) are installed on fixing base (23), and fixing base (23) set up the lower tip inboard at vertical box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021508356.3U CN211388486U (en) | 2020-07-28 | 2020-07-28 | Clamp for material elongation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021508356.3U CN211388486U (en) | 2020-07-28 | 2020-07-28 | Clamp for material elongation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211388486U true CN211388486U (en) | 2020-09-01 |
Family
ID=72217310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021508356.3U Active CN211388486U (en) | 2020-07-28 | 2020-07-28 | Clamp for material elongation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211388486U (en) |
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2020
- 2020-07-28 CN CN202021508356.3U patent/CN211388486U/en active Active
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