CN217046104U - Positioning fixture for friction force test - Google Patents
Positioning fixture for friction force test Download PDFInfo
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- CN217046104U CN217046104U CN202220303721.XU CN202220303721U CN217046104U CN 217046104 U CN217046104 U CN 217046104U CN 202220303721 U CN202220303721 U CN 202220303721U CN 217046104 U CN217046104 U CN 217046104U
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Abstract
The utility model discloses a positioning fixture is used in frictional force test, including bottom plate, curb plate, roof, last positioning seat, lower mount pad, lead screw, fly leaf and lift swing joint pole, it sets up the intermediate position at the fly leaf lower extreme to go up the positioning seat, the mount pad sets up under the intermediate position of bottom plate upper end and corresponding positioning seat that is located down, the vertical setting of lift swing joint pole is connected with last positioning seat at the lower extreme at top and downwardly extending through the fly leaf, the fly leaf makes elevating movement on the lead screw through lift swing joint pole. In this way, the utility model provides a positioning fixture is used in frictional force test has solved the undulant problem of clamping-force of product in the frictional force test, in the frictional force test process, guarantees that the clamping-force remains a invariable value throughout, prevents to cause the interference influence to the testing result, has improved the accuracy that detects the data, has simple structure, reasonable in design, advantages such as convenient to use and easy operation.
Description
Technical Field
The utility model relates to a technical field of frictional force test especially relates to a positioning fixture is used in frictional force test.
Background
Most of the existing friction tester clamps adopt an electric control mode to adjust the clamping force, and a cylinder is fixed with a clamping piece to drive the clamping piece to reach a preset position. Therefore, in view of the above problems, it is necessary to propose a further solution to solve at least one of the problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a positioning fixture for frictional force test, has solved the undulant problem of clamping-force of product in the frictional force test, in the frictional force test process, guarantees that the clamping-force remains a invariable value throughout, prevents to cause the interference influence to the testing result, has improved the accuracy that detects the detection data, has simple structure, reasonable in design, advantages such as convenient to use and easy operation.
In order to solve the technical problem, the utility model discloses a technical scheme be: provides a positioning clamp for friction force test, which comprises a bottom plate, a side plate, a top plate, an upper positioning seat, a lower mounting seat, a screw rod, a movable plate and a lifting movable connecting rod, the side plates are respectively symmetrically and vertically arranged at the left side and the right side of the upper end of the bottom plate, the top plate is horizontally arranged between the tops of the two side plates and is parallel to the bottom plate, the screw rods are respectively symmetrically and vertically arranged between the bottom plate and the top plate and are respectively positioned on the inner side edges of the side plates, two ends of the movable plate are respectively movably connected with the screw rod, the upper positioning seat is arranged in the middle of the lower end of the movable plate, the lower mounting seat is arranged in the middle of the upper end of the bottom plate and is correspondingly positioned right below the upper positioning seat, the lifting movable connecting rod is vertically arranged at the lower end of the top and extends downwards to extend through the movable plate to be connected with the upper positioning seat, and the movable plate performs lifting motion on the screw rod through the lifting movable connecting rod.
In a preferred embodiment of the present invention, a product friction groove with a downward opening is embedded in the upper positioning seat, and the product friction groove protrudes out of the bottom of the upper positioning seat.
In a preferred embodiment of the present invention, the lower mounting seat is embedded with a product positioning groove with an upward opening, and the product positioning groove protrudes from the top of the lower mounting seat.
In a preferred embodiment of the present invention, a positioning column is protruded from a middle position of the bottom of the product positioning groove.
In a preferred embodiment of the present invention, the product friction groove is used in cooperation with the product positioning groove, and the diameter of the product friction groove is smaller than the diameter of the product positioning groove.
In a preferred embodiment of the present invention, the product friction groove is attached to the inner wall of the product positioning groove and contacts the product in the product positioning groove, which is mounted on the positioning column.
In a preferred embodiment of the invention, the product is a coated catheter.
In a preferred embodiment of the present invention, a position-limiting lock is disposed at a connection position of the movable plate and the screw rod.
The utility model has the advantages that: the utility model provides a positioning fixture is used in frictional force test has solved the undulant problem of clamping-force of product in the frictional force test, in the frictional force test process, guarantees that the clamping-force remains a invariable value all the time, prevents to cause the interference influence to the testing result, has improved the accuracy that detects the measured data, has simple structure, reasonable in design, advantages such as convenient to use and easy operation.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of a positioning fixture for friction force testing according to the present invention;
the parts in the drawings are numbered as follows: 1. the bottom plate, 2, curb plate, 3, roof, 4, go up the positioning seat, 5, mount pad down, 6, lead screw, 7, fly leaf, 8, lift swing joint pole, 9, spacing hasp, 10, product friction groove, 11, product constant head tank, 12, reference column.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided with reference to the accompanying drawings, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.
Referring to fig. 1, the present embodiment includes:
a positioning clamp for friction force tests comprises a bottom plate 1, side plates 2, a top plate 3, an upper positioning seat 4, a lower mounting seat 5, a screw rod 6, a movable plate 7 and a lifting movable connecting rod 8, wherein the side plates 2 are symmetrically and vertically arranged on the left side and the right side of the upper end of the bottom plate 1 respectively, the top plate 3 is horizontally arranged between the tops of the two side plates 2 and is parallel to the bottom plate 1, the screw rod 6 is symmetrically and vertically arranged between the bottom plate 1 and the top plate 3 respectively and is positioned on the inner side edges of the side plates 2 respectively, two ends of the movable plate 7 are movably connected with the screw rod 6 respectively, the upper positioning seat 4 is arranged in the middle position of the lower end of the movable plate 7, the lower mounting seat 5 is arranged in the middle position of the upper end of the bottom plate 1 and is correspondingly positioned under the upper positioning seat 4, the lifting movable connecting rod 8 is vertically arranged at the lower end of the top and extends downwards through the movable plate 7 to be connected with the upper positioning seat 4, the movable plate 7 is lifted on the screw rod 6 through a lifting movable connecting rod 8.
In the above, the connecting position of the movable plate 7 and the screw rod 6 is provided with the limiting lock 9, and the position of the movable plate 7 after being lifted up and down can be fixed through the limiting lock 9.
A product friction groove 10 with a downward opening is embedded in the upper positioning seat 4, and the product friction groove 10 protrudes out of the bottom of the upper positioning seat 4; lower mount pad 5 embeds is provided with opening product positioning groove 11 up, just product positioning groove 11 protrusion is in the top of mount pad 5 down. A positioning column 12 is convexly arranged at the middle position of the bottom in the product positioning groove 11, and a product (not shown) is sleeved on the positioning column 12.
Further, the product friction groove 10 is matched with the product positioning groove 11 for use, and the diameter of the product friction groove 10 is smaller than that of the product positioning groove 11; the product friction groove 10 is attached to the inner wall of the product positioning groove 11 and contacts with a product which is arranged in the product positioning groove 11 and sleeved on the positioning column 12. In this example, the product is a coated catheter.
The working principle is as follows:
the product is sleeved on a positioning column 12 in a product positioning groove 11, the lifting movable connecting rod 8 is adjusted to move up and down by controlling the operation of a friction force testing machine, so that the movable plate 7 is driven to move up and down on the screw rod 6, the movable plate 7 drives the product friction groove 10 to move downwards and be inserted into the product positioning groove 11, the product friction groove 10 is attached to the inner wall of the product positioning groove 11 and is in contact with a product sleeved on the positioning column 12 in the product positioning groove 11, the movable plate 7 drives the product friction groove 10 to move upwards, the product friction groove 10 is pulled out of the product positioning groove 11 and is separated from the product, and the friction force testing machine is convenient to detect the friction force of a product coating.
The application provides a positioning fixture is used in frictional force test does with prior art's distinctive feature:
1. the product friction groove is attached to the inner wall of the product positioning groove and is in contact with a product which is arranged in the product positioning groove and sleeved on the positioning column, so that the clamping force is always kept at a constant value in the friction force testing process, and the accuracy of detection data is improved;
2. the product suit is on the reference column in the product constant head tank, even the product of being surveyed is the flexible pipe also can be fine fix a position, has further solved the undulant problem of clamping force of product in the frictional force test.
To sum up, the utility model provides a positioning fixture is used in frictional force test is applicable to coating frictional force testing machine, has solved the undulant problem of clamping-force of product in the frictional force test, in the frictional force test process, guarantees that the clamping-force remains a invariable value all the time, prevents to cause the interference influence to the testing result, has improved the accuracy that detects the detection data, has simple structure, reasonable in design, advantages such as convenient to use and easy operation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes made by the contents of the specification and the drawings are used for conversion, or straight lines or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.
Claims (8)
1. A positioning clamp for friction force test is characterized by comprising a bottom plate, side plates, a top plate, an upper positioning seat, a lower mounting seat, a screw rod, a movable plate and a lifting movable connecting rod, the side plates are respectively and symmetrically and vertically arranged at the left side and the right side of the upper end of the bottom plate, the top plate is horizontally arranged between the tops of the two side plates and is parallel to the bottom plate, the screw rods are respectively symmetrically and vertically arranged between the bottom plate and the top plate and are respectively positioned on the inner side edges of the side plates, the two ends of the movable plate are respectively movably connected with the screw rod, the upper positioning seat is arranged in the middle of the lower end of the movable plate, the lower mounting seat is arranged in the middle of the upper end of the bottom plate and is correspondingly positioned right below the upper positioning seat, the lifting movable connecting rod is vertically arranged at the lower end of the top and extends downwards to penetrate through the movable plate to be connected with the upper positioning seat, and the movable plate performs lifting motion on the screw rod through the lifting movable connecting rod.
2. The localization fixture for friction force test according to claim 1, wherein the upper positioning seat is embedded with a product friction groove with a downward opening, and the product friction groove protrudes out of the bottom of the upper positioning seat.
3. The positioning fixture for friction force testing according to claim 2, wherein a product positioning groove with an upward opening is embedded in the lower mounting seat, and the product positioning groove protrudes from the top of the lower mounting seat.
4. The positioning fixture for friction force testing according to claim 3, wherein a positioning post is protruded from a middle position of a bottom portion of the product positioning groove.
5. The positioning fixture for friction force testing according to claim 3, wherein the product friction groove is used in cooperation with the product positioning groove, and the diameter of the product friction groove is smaller than the diameter of the product positioning groove.
6. The positioning fixture for friction force testing according to claim 4, wherein the product friction groove is attached to an inner wall of the product positioning groove and contacts a product, which is located in the product positioning groove and sleeved on the positioning post.
7. The localization fixture for friction force testing according to claim 6, wherein the product is a coated catheter.
8. The positioning fixture for friction force testing according to claim 1, wherein a limiting lock is disposed at a connection of the movable plate and the screw rod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220303721.XU CN217046104U (en) | 2022-02-15 | 2022-02-15 | Positioning fixture for friction force test |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220303721.XU CN217046104U (en) | 2022-02-15 | 2022-02-15 | Positioning fixture for friction force test |
Publications (1)
Publication Number | Publication Date |
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CN217046104U true CN217046104U (en) | 2022-07-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202220303721.XU Active CN217046104U (en) | 2022-02-15 | 2022-02-15 | Positioning fixture for friction force test |
Country Status (1)
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CN (1) | CN217046104U (en) |
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2022
- 2022-02-15 CN CN202220303721.XU patent/CN217046104U/en active Active
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