CN215297014U - Friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously - Google Patents
Friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously Download PDFInfo
- Publication number
- CN215297014U CN215297014U CN202121006518.8U CN202121006518U CN215297014U CN 215297014 U CN215297014 U CN 215297014U CN 202121006518 U CN202121006518 U CN 202121006518U CN 215297014 U CN215297014 U CN 215297014U
- Authority
- CN
- China
- Prior art keywords
- seat
- rectangular groove
- fixture
- rectangular
- clamp seat
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a but friction wear test anchor clamps of centre gripping rectangle and circular test piece simultaneously. The sample anchor clamps dismouting from the area of present friction wear testing machine is troublesome, causes the damage of test piece easily. The upper seat of the clamp is connected with the lower seat of the clamp through screws; the rotary rod penetrates through the rectangular grooves II of the lower clamp seat and the upper clamp seat and forms a revolute pair together with the lower clamp seat and the upper clamp seat; the tail part of the nut clamping block and the rotary rod form a screw pair; the nut fixture block penetrates through the lower fixture seat and the third rectangular groove of the upper fixture seat, and the head of the nut fixture block and the three clamping blocks are arranged in the first rectangular groove of the lower fixture seat and the rectangular through groove of the upper fixture seat; the head of the nut clamping block and the three clamping blocks are arranged along the circumference; the rotating rod drives the nut clamping block and the three clamping blocks to clamp or loosen the sample. The utility model discloses can conveniently the centre gripping with dismantle the test piece of different sizes, shape and thickness.
Description
Technical Field
The utility model relates to an anchor clamps technical field, concretely relates to friction wear test anchor clamps of centre gripping rectangle and circular test piece simultaneously.
Background
At present, a sample clamp of a friction wear testing machine is mainly used for clamping a test piece by a screw. The screw presss from both sides the damage that causes the test piece easily, and the installation of test piece is more troublesome with the dismantlement, takes place to drop in the experimentation moreover easily. This places certain limits on the frictional wear test.
Disclosure of Invention
The utility model discloses to the sample anchor clamps of friction wear testing machine from area at the defect in the aspect of the installation of sample and dismantlement to and the effect in the experimentation is unsatisfactory, be unfavorable for going on of friction wear test, provide one kind can be simultaneously centre gripping rectangle and circular test piece's friction wear test anchor clamps, ensure that the sample is no matter the rectangle or circular can both be stabilized the centre gripping in the testing process, make the friction wear test go on smoothly.
The utility model adopts the technical scheme as follows:
the utility model comprises a lower clamp seat, an upper clamp seat, a rotating rod, a nut fixture block and a clamping block; the lower clamp seat is provided with a first rectangular groove, a second rectangular groove and a third rectangular groove, and the third rectangular groove is communicated with the first rectangular groove and the second rectangular groove; the fixture upper seat is provided with a rectangular through groove, a rectangular groove II and a rectangular groove III, and the rectangular groove III of the fixture upper seat is communicated with the rectangular through groove and the rectangular groove II of the fixture upper seat; the upper clamp seat is connected with the lower clamp seat through screws, a first rectangular groove of the lower clamp seat is aligned with a first rectangular through groove of the upper clamp seat, a second rectangular groove of the lower clamp seat is aligned with a second rectangular groove of the upper clamp seat, and a third rectangular groove of the lower clamp seat is aligned with a third rectangular groove of the upper clamp seat; the rotary rod penetrates through the second rectangular groove of the lower clamp seat and the second rectangular groove of the upper clamp seat and forms a revolute pair together with the lower clamp seat and the upper clamp seat; the tail part of the nut clamping block and the rotary rod form a screw pair; the nut fixture block penetrates through the third rectangular groove of the lower fixture seat and the third rectangular groove of the upper fixture seat, and the head of the nut fixture block and the three clamping blocks are arranged in the first rectangular groove of the lower fixture seat and the rectangular through groove of the upper fixture seat; the width of the tail part of the nut clamping block is smaller than the width of the lower clamp seat and the width of the rectangular groove of the upper clamp seat; the head of the nut clamping block and the three clamping blocks are in a right-angled triangle shape; the head of the nut clamping block and the three clamping blocks are arranged along the circumference, one corner of the nut clamping block abuts against the inclined plane of the first clamping block, one corner of the first clamping block abuts against the inclined plane of the second clamping block, one corner of the second clamping block abuts against the inclined plane of the third clamping block, and one corner of the third clamping block abuts against the inclined plane of the nut clamping block.
Preferably, the depth of the third rectangular groove is half of the depth of the second rectangular groove.
Preferably, the central axis of the threaded hole of the nut fixture block coincides with the central axis of the cross section of the nut fixture block.
Preferably, through holes are formed in both ends of the second rectangular groove of the lower clamp seat and the second rectangular groove of the upper clamp seat; one end of the rotary rod and the through holes at one end of the lower clamp seat and one end of the upper clamp seat form a revolute pair, and the other end of the rotary rod and the through holes at the other end of the lower clamp seat and the other end of the upper clamp seat form a revolute pair.
Preferably, the fixture upper seat and the fixture lower seat are respectively provided with more than three threaded holes which are uniformly distributed along the circumferential direction, and each threaded hole of the fixture upper seat is connected with one threaded hole at the corresponding position of the fixture lower seat through a screw.
Preferably, the lower clamp seat is provided with more than three through holes which are uniformly distributed along the circumferential direction.
The utility model has the advantages that:
the size of the clamp can be adjusted according to the experimental instrument, experimental conditions and the size of a sample, test pieces with different sizes, shapes and thicknesses can be conveniently clamped and disassembled, the material of the sample is not limited, and the applicability is strong; and the self-locking of the screw pair can ensure the stability of the clamping force in the test process. The utility model discloses detachably installs on the friction wear testing machine, easy dismounting.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a perspective view of the clamp with the upper seat removed;
FIG. 3 is a cross-sectional view of the internal structure of the present invention;
description of reference numerals: 1-lower clamp seat, 2-upper clamp seat, 3-clamping block, 4-threaded hole, 5 through hole, 6-nut clamping block, 7-rotating rod and 8 screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously comprises a fixture lower seat 1, a fixture upper seat 2, a rotary rod 7, a nut fixture block 6 and a clamping block 3; the lower fixture seat 1 is provided with a first rectangular groove, a second rectangular groove and a third rectangular groove, and the third rectangular groove is communicated with the first rectangular groove and the second rectangular groove; the fixture upper seat 2 is provided with a rectangular through groove, a rectangular groove II and a rectangular groove III, and the rectangular groove III of the fixture upper seat 2 is communicated with the rectangular through groove and the rectangular groove II; the upper clamp seat is connected with the lower clamp seat through a screw 8, a first rectangular groove of the lower clamp seat 1 is aligned with a rectangular through groove of the upper clamp seat 2, a second rectangular groove of the lower clamp seat 1 is aligned with a second rectangular groove of the upper clamp seat 2, and a third rectangular groove of the lower clamp seat 1 is aligned with a third rectangular groove of the upper clamp seat 2; the rotary rod 7 penetrates through the second rectangular groove of the lower clamp seat 1 and the second rectangular groove of the upper clamp seat 2, and forms a revolute pair together with the lower clamp seat 1 and the upper clamp seat 2; the tail part of the nut clamping block 6 and the rotary rod 7 form a screw pair; the nut fixture block 6 penetrates through the third rectangular groove of the lower fixture seat 1 and the third rectangular groove of the upper fixture seat 2, and the head of the nut fixture block 6 and the three clamping blocks 3 are arranged in the first rectangular groove of the lower fixture seat 1 and the rectangular through groove of the upper fixture seat 2; the width of the tail part of the nut fixture block 6 is smaller than the width of the rectangular grooves of the lower clamp seat 1 and the upper clamp seat 2; the head of the nut clamping block 6 and the three clamping blocks 3 are in a right-angled triangle shape; the head of the nut clamping block 6 and the three clamping blocks 3 are arranged along the circumference, one corner of the nut clamping block 6 is propped against the inclined surface of the first clamping block 3, one corner of the first clamping block 3 is propped against the inclined surface of the second clamping block 3, one corner of the second clamping block 3 is propped against the inclined surface of the third clamping block 3, and one corner of the third clamping block 3 is propped against the inclined surface of the nut clamping block 6.
As a preferred embodiment, the depth of the third rectangular groove is one half of the depth of the second rectangular groove.
As a preferred embodiment, the central axis of the threaded hole of the nut fixture block is overlapped with the central axis of the cross section of the nut fixture block, so that the clamping of the sample is firmer.
As a preferred embodiment, through holes are formed at two ends of the rectangular groove II of the lower clamp seat 1 and the rectangular groove II of the upper clamp seat 2; the through hole of swing arm one end and anchor clamps lower carriage 1 and 2 one end on the anchor clamps seat of honour all constitutes the revolute pair, and the swing arm other end all constitutes the revolute pair with the through hole of anchor clamps lower carriage 1 and the other one end of anchor clamps seat of honour 2.
As a preferred embodiment, the upper clamp seat and the lower clamp seat are respectively provided with more than three threaded holes 4 uniformly distributed along the circumferential direction, and each threaded hole 4 of the upper clamp seat is connected with one threaded hole 4 at the corresponding position of the lower clamp seat through a screw.
As a preferred embodiment, the lower clamp seat is provided with more than three through holes 5 which are uniformly distributed along the circumferential direction and are used for being connected with a test bench of the friction wear testing machine through bolts and nuts.
This friction wear test anchor clamps that can centre gripping rectangle and circular test piece simultaneously, theory of operation is as follows:
(1) and rotating the rotating rod 7 to enable the nut fixture block 6 to retreat, adjusting the space between the nut fixture block 6 and the three clamping blocks 3 to be the maximum, then placing the lower sample between the nut fixture block 6 and the three clamping blocks 3, rotating the rotating rod to enable the nut fixture block 6 to move forward, and enabling the nut fixture block 6 and the three clamping blocks 3 to clamp the lower sample.
(2) Fixing the lower clamp seat 1 and an experiment table of a friction wear testing machine through bolts and nuts; the frictional wear test was started (the lower sample was ground against the upper sample held by the frictional wear tester). Because the screw pair has a self-locking function, the stability of the clamping force of the nut clamping block 6 and the three clamping blocks 3 in the friction and wear test process is ensured.
For a thin lower sample with the thickness not meeting the test requirement, the thickness of the nut fixture block 6 and the thickness of the three clamping blocks 3 are higher than the height of the lower sample, so that the test cannot be carried out, at the moment, the lower sample can be lifted by adopting a cushion block, and the sum of the thickness of the cushion block and the thickness of the lower sample is ensured to be not less than the sum of the depths of the rectangular groove I and the rectangular through groove; before the cushion block and the lower sample are placed in a space between the nut clamping block 6 and the three clamping blocks 3, the contact surface of the lower sample and the cushion block needs to be polished by sand paper, and the surface is cleaned by absolute ethyl alcohol.
Claims (6)
1. The utility model provides a friction wear test anchor clamps of centre gripping rectangle and circular test piece simultaneously, includes anchor clamps seat down, its characterized in that: the fixture comprises a fixture upper seat, a rotating rod, a nut fixture block and a clamping block; the lower clamp seat is provided with a first rectangular groove, a second rectangular groove and a third rectangular groove, and the third rectangular groove is communicated with the first rectangular groove and the second rectangular groove; the fixture upper seat is provided with a rectangular through groove, a rectangular groove II and a rectangular groove III, and the rectangular groove III of the fixture upper seat is communicated with the rectangular through groove and the rectangular groove II of the fixture upper seat; the upper clamp seat is connected with the lower clamp seat through screws, a first rectangular groove of the lower clamp seat is aligned with a first rectangular through groove of the upper clamp seat, a second rectangular groove of the lower clamp seat is aligned with a second rectangular groove of the upper clamp seat, and a third rectangular groove of the lower clamp seat is aligned with a third rectangular groove of the upper clamp seat; the rotary rod penetrates through the second rectangular groove of the lower clamp seat and the second rectangular groove of the upper clamp seat and forms a revolute pair together with the lower clamp seat and the upper clamp seat; the tail part of the nut clamping block and the rotary rod form a screw pair; the nut fixture block penetrates through the third rectangular groove of the lower fixture seat and the third rectangular groove of the upper fixture seat, and the head of the nut fixture block and the three clamping blocks are arranged in the first rectangular groove of the lower fixture seat and the rectangular through groove of the upper fixture seat; the width of the tail part of the nut clamping block is smaller than the width of the lower clamp seat and the width of the rectangular groove of the upper clamp seat; the head of the nut clamping block and the three clamping blocks are in a right-angled triangle shape; the head of the nut clamping block and the three clamping blocks are arranged along the circumference, one corner of the nut clamping block abuts against the inclined plane of the first clamping block, one corner of the first clamping block abuts against the inclined plane of the second clamping block, one corner of the second clamping block abuts against the inclined plane of the third clamping block, and one corner of the third clamping block abuts against the inclined plane of the nut clamping block.
2. The friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously according to claim 1, wherein: the depth of the third rectangular groove is half of that of the second rectangular groove.
3. The friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously according to claim 1, wherein: and the central axis of the threaded hole of the nut clamping block coincides with the central axis of the cross section of the nut clamping block.
4. The friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously according to claim 1, wherein: through holes are formed in the two ends of the rectangular groove II of the lower clamp seat and the two ends of the rectangular groove II of the upper clamp seat; one end of the rotary rod and the through holes at one end of the lower clamp seat and one end of the upper clamp seat form a revolute pair, and the other end of the rotary rod and the through holes at the other end of the lower clamp seat and the other end of the upper clamp seat form a revolute pair.
5. The friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously according to claim 1, wherein: the clamp upper seat and the clamp lower seat are respectively provided with more than three threaded holes which are uniformly distributed along the circumferential direction, and each threaded hole of the clamp upper seat is connected with one threaded hole at the corresponding position of the clamp lower seat through a screw.
6. The friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously according to claim 1, wherein: the fixture lower seat is provided with more than three through holes which are uniformly distributed along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121006518.8U CN215297014U (en) | 2021-05-12 | 2021-05-12 | Friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121006518.8U CN215297014U (en) | 2021-05-12 | 2021-05-12 | Friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215297014U true CN215297014U (en) | 2021-12-24 |
Family
ID=79540021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121006518.8U Expired - Fee Related CN215297014U (en) | 2021-05-12 | 2021-05-12 | Friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215297014U (en) |
-
2021
- 2021-05-12 CN CN202121006518.8U patent/CN215297014U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108444821B (en) | Clamping diameter-adjustable round bar sample fatigue test clamp and assembling and clamping method | |
| CN103111884B (en) | Automatic clamping device for milling crankshaft key groove | |
| CN208231348U (en) | Built-up jig is used in a kind of machining | |
| CN201261172Y (en) | Rod-like workpiece holder | |
| CN215297014U (en) | Friction wear test fixture capable of clamping rectangular and circular test pieces simultaneously | |
| CN212071192U (en) | Clamp for machining motorcycle accessories | |
| CN210818792U (en) | Flat grinder anchor clamps | |
| CN201862811U (en) | Scatheless lever type bench drill pressure plate | |
| CN202278426U (en) | Blank self-centering and tensioning mechanism | |
| CN215881096U (en) | Fixture for grinding irregular sample by full-automatic grinding and polishing machine | |
| CN201824241U (en) | Rapid fixture | |
| CN211916161U (en) | Clamping fixture for special-shaped parts | |
| CN210388335U (en) | Workpiece clamping device for numerical control machine tool | |
| CN211053133U (en) | Fixing clamp for machining of mechanical die | |
| CN108656022B (en) | Device for assembling ultrasonic transducer | |
| CN215767968U (en) | Automatic positioning clamp for hard and brittle material tensile experiment | |
| CN111660200A (en) | Exempt from to inlay appearance formula metallography grinding and polishing machine anchor clamps frock | |
| CN206305485U (en) | Float type auxiliary clamp claw | |
| CN108422112B (en) | Square oil distribution pipe welding clamp | |
| CN106706401B (en) | Slice class gold phase analysis sample fixture | |
| CN213999175U (en) | Pneumatic clamp device | |
| CN204913504U (en) | Bent axle grinds connecting rod neck degree of presorting location mould | |
| CN216759052U (en) | Anti-loosening workpiece clamp | |
| CN210335173U (en) | Milling machine fixture convenient to operate and use | |
| CN220331081U (en) | Quick fixing clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |