CN209727573U - A tool for controlling the thickness uniformity of adhesive tensile shear specimens - Google Patents

Abstract

The utility model discloses a kind of toolings that sample thickness uniformity is cut for controlling bonding agent drawing, including upper mold, lower mold, the upper mold, lower mold are provided with through-hole along its edge surrounding position, and the upper mold and lower mold are inserted into the through-hole by screw and are fastenedly connected.The utility model structure is simple, and cost is relatively low, and for drawing the uniformity for cutting sample bonded adhesives thickness big, and sample bonded adhesives thickness is cut in easily controllable drawing.

Description

A tool for controlling the thickness uniformity of adhesive tensile shear specimens

technical field

The utility model relates to a composite material clamping and pressing device, in particular to a tool used for controlling the thickness uniformity of an adhesive drawing and shearing sample.

Background technique

The current tensile shear sample production is to apply adhesive on the surface of the substrate, align and close the two substrates, and then apply pressure on the surface of the substrate with both hands to make the adhesive layer flat and reach the required thickness; or use The special F-type clip applies force to achieve the same purpose. However, the above two methods are single-point force, and the magnitude of the force applied at each point is difficult to control, so that the applied force is unevenly distributed on the entire sample surface, resulting in inconsistent thickness of the prepared sample, which affects the accuracy of the test.

In view of the above problems, there is an urgent need for a tool for controlling the uniformity of the thickness of the adhesive tensile-shear sample that is used to control the uniformity of the adhesive thickness of the tensile-shear sample. .

Utility model content

In view of the above-mentioned problems existing in the prior art, we now provide a simple structure, low cost, high uniformity of adhesive glue thickness for tensile and shear samples, and easy to control the thickness of adhesive adhesive for tensile and shear samples. Tooling for controlling the thickness uniformity of adhesive tensile shear specimens.

The technical problem to be solved in the utility model is achieved by the following technical solutions:

The utility model is a tool for controlling the uniformity of the thickness of an adhesive drawing and shearing sample, which comprises an upper mold and a lower mold. The upper mold and the lower mold are all provided with through holes along their edge positions, and the upper The mold and the lower mold are fastened and connected through screws inserted into the through holes.

Preferably, both the upper mold and the lower mold are in the shape of a rectangular plate.

Preferably, the materials of the upper mold and the lower mold are both metal materials.

Preferably, the upper mold and the lower mold are made of aluminum alloy.

Preferably, both sides of the upper mold and the lower mold are provided with handles.

Preferably, the handle length of the upper mold is shorter than the handle length of the lower mold.

Preferably, both the handle of the upper mold and the handle of the lower mold are U-shaped.

Preferably, the positions of the through holes of the upper mold and the lower mold are corresponding, and the numbers are equal, and each of the through holes has 8-20.

Preferably, the diameter of the through hole is 8-12mm.

Preferably, the length and width of the upper mold and the lower mold are equal, and the length is 350-550mm, and the width is 200-350mm.

Compared with the prior art, the utility model has the following technical effects:

The utility model relates to a tooling used for controlling the thickness uniformity of an adhesive tensile-shear sample, which is placed between the upper and lower molds after the tensile-shear sample is bonded and preformed, and the upper and lower The mold is a rectangular thin plate, closely attached to the tensile-shear sample, and then the upper and lower molds are fastened through the through-hole screws arranged along the edges of the upper and lower molds, so that the force on the molds is uniform, and the tension-shear test The thickness uniformity of the adhesive preformed by the sample bonding will be better controlled, and the precision control will be more accurate.

The utility model has the advantages of simple structure, low cost, high uniformity of adhesive glue thickness for tensile and shear samples, and easy control of the adhesive adhesive thickness of tensile and shear samples.

Description of drawings

Fig. 1 is the tooling used to control the thickness uniformity of the adhesive tension-shear sample according to the embodiment of the present invention

Schematic;

The above-mentioned reference signs indicate explanation:

1-upper mold; 2-lower mold; 3-through hole; 4-screw; 5-handle of upper mold; 6-handle of lower mold.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

As shown in Figure 1, the utility model provides a tool for controlling the uniformity of the thickness of the adhesive tensile shear sample, including an upper mold 1 and a lower mold 2, and the upper mold 1 and the lower mold 2 are positioned along their edges Both are provided with through holes 3, and the upper mold 1 and the lower mold 2 are fastened and connected by inserting screws 4 into the through holes 3. The upper and lower molds are locked by bolts to ensure uniform force on the entire mold surface. Preferably, the tightening method is to tighten the screw 4 with the same torque set by a torque wrench, and the torque wrench is a manual torque wrench. Using a torque wrench to tighten the screws can precisely control the force of each screw to be consistent, and the precision control is more accurate. In addition, when screwing, apply force symmetrically, so that the force on the mold will be uniform, and the thickness control will be better.

In the utility model, the surface of the tensile-shear sample is subjected to overall force, and a torque wrench can be used to ensure that the force exerted by each bolt is equal. The discrete rate of small test data improves the reliability of test results.

In a preferred embodiment of the present utility model, the upper mold 1 and the lower mold 2 are both in the shape of a rectangular plate.

In a preferred embodiment of the present utility model, the materials of the upper mold 1 and the lower mold 2 are both aluminum alloy materials.

In a preferred embodiment of the present invention, both sides of the upper mold 1 and the lower mold 2 are provided with handles, and the length of the handle 5 of the upper mold 1 is smaller than the length of the handle 6 of the lower mold 2 . Both upper and lower molds have handles for easy mold clamping operation.

In a preferred embodiment of the utility model, the handle 5 of the upper mold 1 and the handle 6 of the lower mold 2 are U-shaped.

In a preferred embodiment of the present invention, the positions of the through holes 3 of the upper mold 1 and the lower mold 2 are corresponding, and the numbers are equal, and the through holes 3 are 12. This ensures that the entire mold surface is evenly stressed.

In a preferred embodiment of the present invention, the diameter of the through hole 3 is 10mm.

In a preferred embodiment of the utility model, the length of the upper mold 1 and the lower mold 2 is 400mm, and the width is 300mm.

In addition, when using the utility model to control the thickness uniformity of the tensile-shear sample of the adhesive, it is necessary to carry out four steps in sequence: mold surface treatment, substrate bonding pre-forming, applying pressure, and post-processing.

First, clean the upper and lower mold surfaces.

Next, the surface of the treated tensile-shear sample is coated with adhesive glue and then bonded up and down to make a preformed sample. However, in the prior art, after this step is completed, the sample is cured. Due to the high viscosity of the adhesive, in the case of manual pressure, the pressure control of each area is uneven, resulting in uneven thickness of the adhesive between the upper and lower substrates.

Next, put the bonded preformed sample between the upper and lower molds, and tighten all the screws with a torque wrench for mold clamping and pressurization.

Finally, after the mold is closed, the preform and the mold are post-cured to ensure that the thickness will not change during the curing process. After the curing process is completed, the sample has been bonded and formed, and the position will not move, so the mold can be removed. Follow up. The mold is cleaned up and closed for use.

The above are only preferred embodiments of the present utility model, and are not intended to limit the implementation and protection scope of the present utility model. For those skilled in the art, they should be able to realize that any use of the utility model specification and illustration content made Solutions obtained by equivalent replacements and obvious changes shall all be included in the protection scope of the present utility model.

Claims (10)

1. A frock for controlling the thickness uniformity of the adhesive tensile-shear sample is characterized in that it comprises an upper mold and a lower mold, and said upper mold and the lower mold are all provided with through holes along their edge peripheral positions, and The upper mold and the lower mold are fastened and connected by inserting screws into the through holes. 2. The tooling for controlling the uniformity of the thickness of the adhesive tensile-shear sample according to claim 1, wherein the upper mold and the lower mold are both in the shape of a rectangular plate. 3. The tooling for controlling the uniformity of the thickness of the adhesive tension-shear sample according to claim 1, wherein the materials of the upper mold and the lower mold are both metal materials. 4. The tooling for controlling the thickness uniformity of the adhesive tension-shear sample according to claim 1, wherein the materials of the upper mold and the lower mold are both aluminum alloy materials. 5. The tooling for controlling the thickness uniformity of the adhesive tension-shear sample according to claim 1, wherein handles are provided on both sides of the upper mold and the lower mold. 6 . The tooling for controlling the thickness uniformity of adhesive tensile shear samples according to claim 1 or 5 , wherein the length of the handle of the upper mold is shorter than the length of the handle of the lower mold. 7 . 7. The tooling for controlling the thickness uniformity of the adhesive tensile-shear sample according to claim 5, wherein the handle of the upper mold and the handle of the lower mold are both U-shaped. 8. The tooling for controlling the thickness uniformity of the adhesive tensile-shear sample according to claim 1, wherein the upper mold corresponds to the position of the through hole of the lower mold, and the numbers are equal, so There are 8-20 through holes. 9. The tooling for controlling the thickness uniformity of the adhesive tensile-shear sample according to claim 1, wherein the diameter of the through hole is 8-12mm. 10. the frock for controlling the thickness uniformity of the adhesive tensile-shear sample according to claim 1, wherein the length and width of the upper mold and the lower mold are equal, and the length is 350-550mm, The width is 200-350mm.