CN217901333U - Preparation frock of adhesive tensile shear strength sample - Google Patents
Preparation frock of adhesive tensile shear strength sample Download PDFInfo
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- CN217901333U CN217901333U CN202221580722.5U CN202221580722U CN217901333U CN 217901333 U CN217901333 U CN 217901333U CN 202221580722 U CN202221580722 U CN 202221580722U CN 217901333 U CN217901333 U CN 217901333U
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Abstract
The utility model discloses a preparation frock of tensile shear strength sample of adhesive comprises in pairs and first locating plate and the second locating plate of establishing, and wherein first locating plate has been seted up and has been corresponded a single overlap joint and glued compatible first recess wherein of union piece, and the second locating plate has been seted up and has been corresponded another single overlap joint and glued compatible second recess wherein of union piece, the degree of depth d of first recess 1 Is greater than the depth d of the second groove 2 And the depth difference Δ d = d 1 ‑d 2 Exceeds the thickness of the single lap joint glue joint part; the groove openings of the two positioning plates are opposite, and the distance between the positioning plates is self-defined, adjustable and locked. By applying the preparation tool, the single-lap joint gluing piece can be accurately positioned through the positioning sheet and the groove thereofThe size of the bonding surface ensures the uniform thickness of the glue layer, and improves the convenience and efficiency of the sample preparation process; through preventing sticky locating plate, provide convenience for taking out the finished product sample therefrom.
Description
Technical Field
The utility model relates to a location frock that engineering quality detected especially relates to a preparation frock that is used for tensile shear strength sample of adhesive, belongs to the mechanical equipment field.
Background
The adhesive tensile shear strength test is an important test for measuring the shear stress of a single lap joint of a rigid material by applying a tensile force in the direction parallel to a bonding surface and in the direction of the main axis of a sample, and reflecting the shear resistance of an adhesive material. The single lap joint glue joint has the characteristics of economy, practicality, easy preparation and the like. The sample is a test object commonly used in development, evaluation and comparison research of adhesives and bonding products, and also comprises the most widely applied mode in the aspect of manufacturing quality control. According to GB/T7124-2008 & determination of tensile shear strength of adhesive (rigid material to rigid material) & gt: the method has specific requirements on the size and the lap joint length of the sample, and has uniform and consistent requirements on the thickness of the adhesive layer. However, a corresponding method is not provided to meet the preparation requirement, and the problems of inconsistent lap joint length, glue line thickness and lap joint direction, poor precision, low efficiency and the like easily occur when the sample is prepared manually by technicians in the prior art.
Disclosure of Invention
The utility model aims at providing a preparation frock of adhesive tensile shear strength sample, the problem of precision and efficiency when solving the preparation sample.
The utility model provides a technical solution of above-mentioned purpose is, a preparation frock of adhesive tensile shear strength sample, its characterized in that: comprises a first positioning plate and a second positioning plate which are arranged in pairs, wherein the first positioning plate is provided with a first groove corresponding to one single lap joint gluing piece and compatible with the first positioning plate, the second positioning plate is provided with a second groove corresponding to the other single lap joint gluing piece and compatible with the second positioning plate, and the depth d of the first groove 1 Is greater than the depth d of the second groove 2 And a depth difference Δ d = d 1 -d 2 Exceeds the thickness of the single lap joint glue joint part; the groove openings of the two positioning plates are opposite, and the distance between the positioning plates is self-defined, adjustable and locked.
Furthermore, the positioning plate also comprises a distance bar plate, and the thickness L of the distance bar plate is smaller than the height difference of the bottom surface of the positioning plate relative to the bottom surface of the first groove.
Furthermore, the distance laths have more than two width specifications, and any distance lath is selected to be spliced with the two positioning plates in an opposite position, so that the distance between the two positioning plates is fixed.
The first positioning plate and the second positioning plate are fixedly mounted corresponding to the two racks in a one-to-one manner, and the operation area of the gear is arranged outside the empty area between the two positioning plates.
Furthermore, a plurality of first grooves are arranged on the surface of the first positioning plate side by side, and second grooves are arranged on the surface of the second positioning plate side by side and opposite to the first grooves.
Use the utility model discloses a preparation frock possesses following progressive: the single-lap joint glue joint piece and the size of the bonding surface thereof can be accurately positioned through the positioning sheet and the groove thereof, the uniform thickness of the glue layer is ensured, and the convenience and the efficiency of the sample preparation process are improved; through preventing sticky locating plate, provide convenience for taking out the finished product sample therefrom.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the manufacturing tool of the present invention.
Fig. 2 is a schematic view of a use state of the preparation tool shown in fig. 1.
Detailed Description
The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp, and thus make a clearer definition of the protection scope of the present invention.
The utility model discloses the designer is to current zero instrument, the not enough of the tensile shear strength sample of full manual preparation adhesive, and the innovation has provided a preparation frock to improve the precision and the efficiency of sample preparation.
As shown in FIG. 1, the preparation tool for the adhesive tensile shear strength test sample has the structural characteristics of being arranged in pairsA first positioning plate 1 and a second positioning plate 2, wherein the first positioning plate 1 is provided with a first groove 11 corresponding to one single lap joint gluing part and compatible with the first groove, the second positioning plate 2 is provided with a second groove 21 corresponding to the other single lap joint gluing part and compatible with the second groove, and the depth d of the first groove 11 1 Greater than the depth d of the second recess 21 2 And the depth difference Δ d = d 1 -d 2 Exceeds the thickness of the single lap joint glue joint part; the groove openings of the two positioning plates are opposite, and the distance between the positioning plates is self-defined, adjustable and locked.
The above outlined scheme is more intuitive to understand: to those skilled in the art, the single lap joint glue joint has a relatively uniform specification, specifically a rigid sheet of 100mm by 25mm by 1.6mm. The shape of the groove arranged in any positioning plate can be compatible with the single lap joint glue joint piece and exposed for a certain distance, and the width of the groove is consistent with that of the single lap joint glue joint piece for ensuring the positioning reliability. Because the single-lap joint glue joint pieces in the two positioning plates are partially exposed and have height drop, when the positioning plates are relatively close and the length directions of the grooves are aligned, the single-lap joint glue joint pieces on the two sides can form partial area overlapping, and the two single-lap joint glue joint pieces are connected into a whole by brushing glue. Utilize this preparation frock, through two recess length direction's linear alignment, be favorable to ensureing that the overlap joint direction is unanimous, and through the reasonable setting of recess length and locating plate interval, be favorable to the size of accurate control bonding face to through the settlement and the processing of the recess degree of depth, reliably ensured looks lapped both at high to interval.
In the preferred embodiment shown in fig. 1, the first positioning plate 1 has a plurality of first grooves arranged side by side on the surface thereof, and the second positioning plate 2 has a plurality of second grooves arranged side by side and opposite to the first grooves on the surface thereof. Therefore, the tool can be simultaneously used for batch preparation of a plurality of samples. As an optimized design, the preparation tool further comprises a distance lath 3, and the thickness L of the distance lath 3 is smaller than the height drop of the bottom surface of the positioning plate relative to the bottom surface of the first groove. Namely, after the two positioning plates are spliced with the distance lath, the distance lath can not influence the falling position of the single-lap joint gluing piece in the groove with larger depth.
If the change of the size of the bonding surface is required to be met, namely, when the length of the overlapping distance of the two single-lap joint gluing pieces is more than two requirements, the distance between the two positioning plates can be adjusted. Therefore, above-mentioned distance slat 3 can have more than two kinds of width specifications, when the sample preparation, can select arbitrary distance slat and two locating plate counterpoint to splice mutually, fixes the interval of two locating plates as required.
As shown in FIG. 2, it is a schematic view of the use state of the preparation tool of the present invention. The illustrated example of preparation uses only one pair of grooves as an operational demonstration, and the remaining pairs of grooves can actually be loaded with a single lap splice and used to prepare the test specimens. Returning to the illustrated embodiment, the overall dimensions of the first alignment plate are 200mm × 100mm × 10mm (length, width, and height), while the dimensions of the first recess formed therein are 75mm × 25mm × 3.5mm, and the dimensions of the second alignment plate are referenced to the first alignment plate, and the dimensions of the second recess formed therein are 75mm × 25mm × 1.6mm. And the external dimension of the distance lath for limiting the distance between the two positioning plates is 200mm multiplied by 37.5mm multiplied by 5mm. Thus, the single lap splice element 4 is shown in the figure as being seated in the first recess 11 with an exposed length of 25mm, and the single lap splice element 5 is shown in the figure as being seated in the second recess 21 with an exposed length of 25mm. In the overlapped state, the overlapping length of the two single lap joint glue pieces in the upper space of the distance lath is 12.5mm, so that the size of the bonding surface can be 12.5mm multiplied by 25mm. And a gap of 0.3mm is formed between the two in the height direction, so that the adhesive is suitable for gluing and is kept uniform, full and consistent in thickness.
In addition to the preferred embodiment and the use of the distance-setting laths, the preparation tool can also comprise a platform and a transverse distance-setting unit embedded in the surface of the platform, wherein the transverse distance-setting unit comprises a rotatable gear and two meshed racks, the two racks are embedded in linear grooves of the platform to limit and slide and are driven by the rotation of the gear to move close to and away from each other, the first positioning plate and the second positioning plate are fixedly arranged corresponding to the two racks one by one, and the operation area of the gear is arranged outside the clearance area between the two positioning plates. Like this, the platform surface still can set up the scale, and the drive mode control gear through belt pulley or gear train rotates, drives two locating plates and is close to each other or keeps away from to the spacing (relevant with the face size that bonds) is adjusted.
It needs to be added to explain that the sample is directly adhered to the tool in order to avoid glue overflow caused by the adhesive in the sample preparation process. The preparation tool selects a polytetrafluoroethylene-supported plastic plate which is mutually exclusive with the specificity of the adhesive, and the processing and shaping stability is high.
In conclusion, the scheme introduction of the preparation tool of the utility model and the detailed description of the embodiment combined with the figure show that the scheme has substantial characteristics and progressiveness: the single-lap joint glue joint piece and the size of the bonding surface thereof can be accurately positioned through the positioning sheet and the groove thereof, the uniform thickness of the glue layer is ensured, and the convenience and the efficiency of the sample preparation process are improved; through preventing sticky locating plate, provide convenience for taking out the finished product sample therefrom.
In addition to the above embodiments, the present invention may have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of the present invention.
Claims (5)
1. The utility model provides a preparation frock of adhesive tensile shear strength sample which characterized in that: comprises a first positioning plate and a second positioning plate which are arranged in pair, wherein the first positioning plate is provided with a first groove corresponding to one single lap joint gluing piece and compatible with the first positioning plate, the second positioning plate is provided with a second groove corresponding to the other single lap joint gluing piece and compatible with the second positioning plate, and the depth d of the first groove 1 Is greater than the depth d of the second groove 2 And a depth difference Δ d = d 1 -d 2 Exceeds the thickness of the single lap joint glue joint part; the groove openings of the two positioning plates are opposite, and the distance between the positioning plates is self-defined, adjustable and locked.
2. The preparation frock of adhesive tensile shear strength sample of claim 1, characterized in that: the positioning plate also comprises a distance lath, and the thickness L of the distance lath is smaller than the height difference of the bottom surface of the positioning plate relative to the bottom surface of the first groove.
3. The preparation frock of adhesive tensile shear strength sample of claim 2, characterized in that: the distance laths have more than two width specifications, and select arbitrary distance lath and two locating plates counterpoint and splice mutually, fix the interval of two locating plates.
4. The preparation frock of adhesive tensile shear strength sample of claim 1, characterized in that: the positioning device comprises a platform and a transverse distance adjusting unit embedded in the surface of the platform, wherein the transverse distance adjusting unit consists of a dial gear and two meshed racks, the two racks are embedded in linear grooves of the platform to slide in a limiting mode and are driven by the rotation of the gears to move close to and away from each other, the first positioning plate and the second positioning plate are fixedly installed corresponding to the two racks one by one, and an operation area of the gears is arranged outside a gap area between the two positioning plates.
5. The preparation frock of adhesive tensile shear strength sample of claim 1, characterized in that: the surface of the first positioning plate is provided with a plurality of first grooves side by side, and the surface of the second positioning plate is provided with second grooves side by side and opposite to the first grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221580722.5U CN217901333U (en) | 2022-06-23 | 2022-06-23 | Preparation frock of adhesive tensile shear strength sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221580722.5U CN217901333U (en) | 2022-06-23 | 2022-06-23 | Preparation frock of adhesive tensile shear strength sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217901333U true CN217901333U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221580722.5U Active CN217901333U (en) | 2022-06-23 | 2022-06-23 | Preparation frock of adhesive tensile shear strength sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217901333U (en) |
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2022
- 2022-06-23 CN CN202221580722.5U patent/CN217901333U/en active Active
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