CN217180260U - Small-size plate-shaped tensile sample clamp - Google Patents
Small-size plate-shaped tensile sample clamp Download PDFInfo
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- CN217180260U CN217180260U CN202220798311.7U CN202220798311U CN217180260U CN 217180260 U CN217180260 U CN 217180260U CN 202220798311 U CN202220798311 U CN 202220798311U CN 217180260 U CN217180260 U CN 217180260U
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Abstract
The utility model discloses a small-size plate-shaped tensile sample clamp, which comprises a clamping block, a cover plate, a fixing bolt, a hinge fixing plate and a spring box; the hinge fixing plate is fixed on the surface of the clamping block, the upper end of the cover plate is hinged with the hinge fixing plate, and the lower end of the cover plate is fixed with the clamping block through a fixing bolt; the middle lower part of the clamping block forms a special-shaped groove for accommodating the spring box and the sample, and the special-shaped groove is a semi-through groove. The utility model provides a special fixture suitable for test of small-size plate-like tensile sample tensile properties can effectively solve because the less tensile process that brings of clamping end area problem of skidding and anchor clamps fragile problem, can effectively reduce the anchor clamps loss, reduction test cost.
Description
Technical Field
The utility model belongs to the technical field of tensile test equipment, concretely relates to platelike tensile sample anchor clamps of small-size.
Background
The tensile test is the most basic test method in material performance characterization, the clamp is the most main part of the tensile testing machine for the tensile test, the universal clamp on the tensile testing machine comprises a flat plate clamp and a V-shaped clamp, and the clamps with different specifications are selected according to the size and the shape of a clamping end of a sample. A flat plate jig is generally used for the plate-like tensile specimen. However, for a small-size plate-shaped sample, because the whole size of the sample is small, the contact area between the clamping end and the flat plate clamp is small, on one hand, the sample is easy to slip in the stretching process, so that the performance test result is influenced, and on the other hand, the clamp is easy to damage, so that the sample cost is increased. Therefore, a special testing machine clamp suitable for a small-size plate-shaped tensile sample needs to be designed, so that the clamp loss is reduced on the premise that the sample does not slip, and the testing cost is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve and have among the prior art among the small-size plate-like sample tensile properties test process because the less sample that causes of exposed core size easily skids and the easy loss problem of anchor clamps and provide, its purpose provides a small-size plate-like tensile sample anchor clamps.
The utility model discloses a realize through following technical scheme:
a small-size plate-shaped tensile sample clamp comprises clamping blocks, a cover plate, a fixing bolt, a hinge fixing plate and a spring box; the hinge fixing plate is fixed on the surface of the clamping block, the upper end of the cover plate is hinged with the hinge fixing plate, and the lower end of the cover plate is fixed with the clamping block through a fixing bolt; the middle lower part of the clamping block forms a special-shaped groove for accommodating the spring box and the sample, and the special-shaped groove is a semi-through groove.
In the above technical solution, a thin plate type shallow groove is formed on one end surface of the clamping block, and the hinge fixing plate is fixed in the shallow groove.
In the above technical solution, the depth and the lateral width of the shallow groove are the same as the thickness and the lateral width of the hinge fixing plate, and the longitudinal length of the shallow groove is the same as the sum of the longitudinal lengths of the hinge fixing plate and the cover plate.
In the technical scheme, the special-shaped groove consists of a rectangular box groove and an inverted V-shaped transition groove which are communicated with each other; the spring box is embedded into the box groove, and the movable stress plate of the spring box protrudes towards one side close to the cover plate.
In the technical scheme, the depth of the box groove is greater than the sum of the thickness of the box body of the spring box and the thickness of the sample, and the transverse width of the box groove is matched with the transverse width of the box body of the spring box; the longitudinal length of the box groove is greater than the length of the clamping end of the sample; the wall of the transition groove is arc-shaped, and the radian and the size are matched with the transition section of the sample.
In the above technical scheme, the cover plate forms an accommodating groove towards the end face of the clamping block, the accommodating groove is in a convex shape, and the position of the accommodating groove corresponds to that of the spring box.
In the above technical scheme, the area of the tank bottom surface of the accommodating tank is matched with the area of the bottom surface of the spring box, and the depth of the tank is smaller than the depth of the protruding part of the movable stress plate.
In the technical scheme, the spring box comprises a box body, a limiting plate fixed with the open end of the box body, a movable stress plate and a compression spring, wherein the movable stress plate and the compression spring are arranged in the box body; one end of the compression spring is fixed with the inner wall of the box body, and the other end of the compression spring is fixed with the movable stress plate.
In the technical scheme, a rectangular through hole is formed in the middle of the limiting plate; the movable stress plate is a special-shaped flat plate with a bulge formed in the middle, the cross section of the bulge is rectangular, and the bulge penetrates through a through hole in the middle of the limiting plate and extends out of the box body; one end of the compression spring is fixed with the inner surface of the protrusion of the movable stress plate.
In the technical scheme, the limiting plate is connected with the open end of the box body through the fixing screw.
The utility model has the advantages that:
the utility model provides a special fixture suitable for test of small-size plate-like tensile sample tensile properties, this anchor clamps are different from the centre gripping mode of traditional dull and stereotyped anchor clamps, can effectively solve because the less tensile process that brings of clamping end area problem of skidding and anchor clamps fragile problem, can effectively reduce the anchor clamps loss, reduce test cost.
Drawings
Fig. 1 is a schematic perspective view of a small-sized plate-shaped tensile sample clamp according to the present invention;
fig. 2 is a schematic perspective view of a clamping block in the small-sized plate-shaped tensile sample clamp of the present invention;
fig. 3 is a schematic perspective view of a cover plate in the small-sized plate-shaped tensile sample clamp according to the present invention;
fig. 4 is a schematic perspective view of a spring box in the small-sized plate-shaped tensile sample clamp according to the present invention;
FIG. 5 is a right side view of the spring box of the small plate-like tensile specimen holder of the present invention;
fig. 6 is a sectional view taken along a-a in fig. 5.
Wherein:
1 clamping block
11 shallow slot 12 special-shaped groove
13 case groove 14 transition groove
2 cover plate
21 screw through hole 22 holding groove
3 fixing bolt
4 hinge fixed plate
5 spring box
51 case 52 limit plate
53 fixed screw 54 movable stress plate
55 compress the spring.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the small-sized plate-shaped tensile sample clamp of the present invention will be further described below by referring to the drawings of the specification and the specific embodiments.
As shown in fig. 1, a small-sized plate-shaped tensile sample clamp comprises a clamping block 1, a cover plate 2, a fixing bolt 3, a hinge fixing plate 4 and a spring box 5; the hinge fixing plate 4 is fixed on the surface of the clamping block 1, the upper end of the cover plate 2 is hinged with the hinge fixing plate 4, and the lower end of the cover plate is fixed with the clamping block 1 through a fixing bolt; the middle lower part of the clamping block 1 is provided with a special-shaped groove 12 for accommodating the spring box 5 and the sample, and the special-shaped groove 12 is a semi-through groove.
As shown in fig. 2, a thin-plate type shallow groove 11 is formed on one end surface of the clamping block 1, and the hinge fixing plate 4 is fixed in the shallow groove 11; the depth and the transverse width of the shallow groove 11 are the same as the thickness and the transverse width of the hinge fixing plate 4, and the longitudinal length of the shallow groove 11 is the same as the sum of the longitudinal lengths of the hinge fixing plate 4 and the cover plate 2.
The special-shaped groove 12 consists of a rectangular box groove 13 and an inverted V-shaped transition groove 14 which are communicated with each other; the depth of the box groove 13 is greater than the sum of the thickness of the box body 51 of the spring box 5 and the thickness of the sample, and the transverse width of the box groove 13 is matched with the transverse width of the box body 51 of the spring box 5; the longitudinal length of the box groove 13 is greater than the length of the clamping end of the sample; the wall of the transition groove 14 is arc-shaped, and the radian and the size are matched with the transition section of the sample.
As shown in fig. 3, the cover plate 2 is connected with the hinge 4, so that the cover plate can be freely turned over within a certain angle range, an accommodating groove 22 is formed on the end surface of the cover plate facing the clamping block 1, the accommodating groove 22 is in a convex shape, and the position of the accommodating groove corresponds to that of the spring box 5; the area of the bottom surface of the accommodating groove 22 is matched with the area of the bottom surface of the spring box 5, and the depth of the groove is smaller than the depth of the protruding part of the movable stress plate 54; two threaded through holes 21 are formed in the lower portion of the cover plate 2, and the fixing bolts 3 penetrate through the threaded through holes 21 to fasten the cover plate 2 and the clamping block 1.
As shown in fig. 4 to 6, the spring box 5 includes a hollow box body 51, a limit plate 52, a fixing screw 53, a movable stress plate 54 and a compression spring 55; the limiting plate 52 is connected with the open end of the box body 51 through a fixing screw 53, and a rectangular through hole is formed in the middle of the limiting plate 52; the movable stress plate 54 is a special-shaped flat plate with a bulge formed in the middle, the cross section of the bulge is rectangular, the movable stress plate 54 is arranged in the box body 51, and the bulge penetrates through a through hole in the middle of the limiting plate 52 and extends out of the box body 51; one end of the compression spring 55 is fixed with the inner wall of the box body 51, and the other end of the compression spring is fixed with the raised inner surface of the movable stress plate 54; the movable stress plate 54 can realize a certain range of movement of the box body under the action of external force through a compression spring 55. The spring box 5 is completely embedded in the box groove 13, and the bulge faces to one side close to the cover plate 2.
The utility model discloses a working process:
when the device is used, the cover plate 2 is opened, the clamping end and the transition section of a sample are placed in the clamping block rectangular box groove 13 and the splayed transition groove 14, the surface of the sample is completely attached to the surface of the closed end of the special-shaped groove of the clamping block, the spring box is placed in the clamping block rectangular groove 13, the bottom of the spring box tightly presses the sample, the cover plate 2 is rotated, the rectangular convex part of the movable stress plate 54 of the spring box is embedded in the rectangular groove of the cover plate 2, the cover plate 2 is fastened with the clamping block 1 through the fixing bolt 3, the other end of the sample is clamped in the same method, and a tensile test is started.
The utility model provides a small-size plate-shaped sample tensile properties test special fixture changes traditional dull and stereotyped anchor clamps centre gripping mode, adopts the mode of transition circular arc section face contact to stretch, effectively improves because the less sample problem of skidding that causes of exposed core size, simultaneously, reduces the anchor clamps loss, reduces test cost. Anchor clamps loading and unloading are convenient, are applicable to ordinary tensile testing machine model, and application scope is wide, increases the spring box, can effectively guarantee that the sample is parallel with testing machine application of force direction all the time at tensile in-process atress direction, guarantees tensile properties test result accuracy.
It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. The utility model provides a plate-like tensile specimen anchor clamps of small-size which characterized in that: comprises a clamping block (1), a cover plate (2), a fixing bolt (3), a hinge fixing plate (4) and a spring box (5); the hinge fixing plate (4) is fixed on the surface of the clamping block (1), the upper end of the cover plate (2) is hinged with the hinge fixing plate (4), and the lower end of the cover plate is fixed with the clamping block (1) through a fixing bolt; the middle lower part of the clamping block (1) forms a special-shaped groove (12) for accommodating the spring box (5) and the sample, and the special-shaped groove (12) is a semi-through groove.
2. The small-sized plate-like tension specimen holder according to claim 1, wherein: a thin-sheet-shaped shallow groove (11) is formed in the surface of one end of the clamping block (1), and the hinge fixing plate (4) is fixed in the shallow groove (11).
3. The small-sized plate-like tension specimen holder according to claim 2, wherein: the depth and the transverse width of the shallow groove (11) are the same as the thickness and the transverse width of the hinge fixing plate (4), and the longitudinal length of the shallow groove (11) is the same as the sum of the longitudinal lengths of the hinge fixing plate (4) and the cover plate (2).
4. The small-sized plate-like tension specimen holder according to claim 1, wherein: the special-shaped groove (12) consists of a rectangular box groove (13) and an inverted V-shaped transition groove (14) which are communicated with each other; the spring box (5) is embedded into the box groove (13), and the movable stress plate (54) of the spring box (5) protrudes towards one side close to the cover plate (2).
5. The small-sized plate-like tension specimen holder according to claim 4, wherein: the depth of the box groove (13) is greater than the sum of the thickness of the box body (51) of the spring box (5) and the thickness of a sample, and the transverse width of the box groove (13) is matched with the transverse width of the box body (51) of the spring box (5); the longitudinal length of the box groove (13) is greater than the length of the clamping end of the sample; the wall of the transition groove (14) is arc-shaped, and the radian and the size are matched with the transition section of the sample.
6. The small-sized plate-like tension specimen holder according to claim 1, wherein: the end face of the cover plate (2) facing the clamping block (1) forms an accommodating groove (22), the accommodating groove (22) is in a convex shape, and the position of the accommodating groove corresponds to that of the spring box (5).
7. The small-sized plate-like tension specimen holder according to claim 6, wherein: the area of the bottom surface of the accommodating groove (22) is matched with the area of the bottom surface of the spring box (5), and the depth of the groove is smaller than that of the protruding part of the movable stress plate (54).
8. The small-sized plate-like tension specimen holder according to claim 1, wherein: the spring box (5) comprises a box body (51), a limiting plate (52) fixed with the open end of the box body (51), a movable stress plate (54) and a compression spring (55) which are arranged in the box body (51); one end of the compression spring (55) is fixed with the inner wall of the box body (51), and the other end of the compression spring is fixed with the movable stress plate (54).
9. The small-sized plate-like tension specimen holder according to claim 8, wherein: a rectangular through hole is formed in the middle of the limiting plate (52); the movable stress plate (54) is a special-shaped flat plate with a bulge formed in the middle, the cross section of the bulge is rectangular, and the bulge penetrates through a through hole in the middle of the limiting plate (52) and extends out of the box body (51); one end of the compression spring (55) is fixed with the inner surface of the bulge of the movable stress plate (54).
10. The small-sized plate-like tension specimen holder according to claim 8, wherein: the limiting plate (52) is connected with the open end of the box body (51) through a fixing screw (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220798311.7U CN217180260U (en) | 2022-04-08 | 2022-04-08 | Small-size plate-shaped tensile sample clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220798311.7U CN217180260U (en) | 2022-04-08 | 2022-04-08 | Small-size plate-shaped tensile sample clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217180260U true CN217180260U (en) | 2022-08-12 |
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ID=82747060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220798311.7U Active CN217180260U (en) | 2022-04-08 | 2022-04-08 | Small-size plate-shaped tensile sample clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217180260U (en) |
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2022
- 2022-04-08 CN CN202220798311.7U patent/CN217180260U/en active Active
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