CN217277322U

CN217277322U - Auxiliary tool for manufacturing shear strength test piece of adhesive

Info

Publication number: CN217277322U
Application number: CN202220031391.3U
Authority: CN
Inventors: 杨威; 马全胜; 朱有欣; 邹鹏; 田思戗
Original assignee: Weihai Guangwei Composites Co Ltd
Current assignee: Weihai Guangwei Composites Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-08-23
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses an auxiliary fixtures of preparation adhesive shear strength test block, include: a bottom plate for placing the test piece; the two side plates are arranged on the bottom plate at intervals, and limit parts for positioning the test piece are arranged on the side plates; the pressing block is arranged between the two side plates; the pressing block is matched with the bottom plate to clamp the test piece so as to stabilize the test piece. The utility model discloses an auxiliary fixtures of preparation adhesive shear strength test block, under the effect of gravity through the briquetting that sets up on the bottom plate, press the part that scribbles the adhesive between two test blocks, for the splicing of two test blocks provides pressure, spacing portion on the rethread curb plate realizes fixing a position the test block, thereby play and provide the location to the preparation of adhesive shear strength test block, the pressurized function, and can promote the precision of the overlap joint size between two test blocks, and can play the effect that reduces its cost of manufacture.

Description

Auxiliary tool for manufacturing shear strength test piece of adhesive

Technical Field

The utility model relates to a frock especially relates to an auxiliary fixtures of preparation adhesive shear strength test block.

Background

The existing adhesive shear strength test piece is generally manufactured by using an autoclave forming process, two test piece adhesive surfaces are adhered by an adhesive and placed on a flat plate tool, and after an isolation film, an air felt, a sealing adhesive tape, a vacuum bag and other auxiliary materials are used for sealing, the autoclave is used for controlling temperature, pressure, time and other process parameters so as to cure. Although the method can realize the functionality of manufacturing the adhesive shear strength test piece, the test piece is not positioned, the lap joint size is unstable, and the running cost of auxiliary materials and an autoclave is higher, so that the overall manufacturing cost of the test is higher.

Therefore, it is necessary to provide an auxiliary tool for manufacturing an adhesive shear strength test piece to solve the above problems.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary fixtures of preparation adhesive shear strength test block, it can promote the stability of overlap joint size between the test block and reduce the cost of preparation test block.

In order to achieve the above object, the utility model provides an auxiliary fixtures of preparation adhesive shear strength test block, include: the bottom plate is used for placing the test piece; the two side plates are arranged on the bottom plate at intervals, and limiting parts for positioning the test piece are arranged on the side plates; the pressing block is arranged between the two side plates; the pressing block is matched with the bottom plate to clamp the test piece so as to stabilize the test piece.

In one or more embodiments, a limiting portion is disposed on the side plate, and a limiting groove matched with the limiting portion is disposed on the pressing block.

In one or more embodiments, the limiting groove and the limiting part are in clearance fit.

In one or more embodiments, the auxiliary tool further includes a pressurizing device, one end of the pressurizing device is rotatably connected to the side plate through a rotating shaft, and the pressurizing device is supported on the pressing block under the action of gravity so as to press the test piece.

In one or more embodiments, the pressurizing device includes a pressurizing rod, a support, and a pressurizing portion, the pressurizing rod being connected to the rotating shaft along one end in an axial direction thereof; the lower end of the support is connected with the pressing block, and the upper end of the support is connected with the lower end of the pressurizing rod; the pressurizing part is connected to the pressurizing rod to increase the pressure of the pressing block on the test piece.

In one or more embodiments, the pressurization part includes pressurization dish, connecting rod and connecting seat, the connecting seat is the frame type, and the cover is established on the pressurization pole, the pressurization dish is connected with the connecting seat through the connecting rod.

In one or more embodiments, the pressing rod is provided with a catching groove in which one side of the frame-shaped connecting seat is placed.

In one or more embodiments, the pressing rod is provided with a plurality of clamping grooves at intervals along the axial direction thereof.

In one or more embodiments, the bottom plate is provided with a support portion extending in the axial direction of the pressurizing rod.

Compared with the prior art, according to the utility model discloses an auxiliary fixtures of preparation adhesive shear strength test block, through setting up the briquetting on the bottom plate under the effect of gravity, press the part that scribbles the adhesive between two test blocks, for the joint of two test blocks provides pressure, spacing portion on the rethread curb plate realizes fixing a position the test block to play and provide location, pressurized function to the preparation of adhesive shear strength test block, and can promote the precision of the overlap joint size between two test blocks. And then, putting the auxiliary tool with the test piece into an oven for heating and curing to obtain the adhesive shear strength test piece, and compared with the original test piece prepared by an autoclave forming process, the method can play a role in reducing the manufacturing cost.

Drawings

Fig. 1 is a schematic view of an auxiliary tool for manufacturing an adhesive shear strength test piece according to an embodiment of the present invention;

FIG. 2 is a partial top view of a junction of a side plate and a press block according to an embodiment of the present invention;

FIG. 3 is a schematic view of a test strip according to an embodiment of the present invention;

FIG. 4 is a schematic view showing a state in which a test piece according to an embodiment of the present invention is placed between a pressing block and a base plate.

Description of the main reference numerals:

1. a base plate; 11. a support portion; 2. a side plate; 21. a limiting part; 22. a rotating shaft; 3. briquetting; 31. a limiting groove; 4. a pressurizing device; 41. a pressurizing rod; 411. a clamping groove; 42. a support; 421. a groove; 43. a pressurization part; 431. a pressure plate is added; 432. a connecting rod; 433. a connecting seat; 5. a test piece; 51. an adhesive; 52. a protrusion; 53. positioning a groove; 54. a connecting portion.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 and fig. 2, the auxiliary tool for manufacturing an adhesive shear strength test piece according to an embodiment of the present invention may include a bottom plate 1, two side plates 2, and a pressing block 3, wherein the two side plates 2 may be disposed on the bottom plate 1 at intervals; the pressing block 3 may be disposed between the two side plates 2.

As shown in fig. 2 to 4, the side plate 2 may be provided with a limiting portion 21, the shape of the limiting portion 21 matches with the edge of the test piece 5, so as to position the test piece 5 placed on the bottom plate 1, and also play a role in limiting the overlapping area of the two test pieces 5 and the coating area of the adhesive 51.

As shown in fig. 1 and 2, the pressing block 3 may be disposed between the two side plates 2 and pressed above the two test pieces 5, and the pressing block 3 provides pressure to the bonding position between the two test pieces 5 by using its own gravity. The number of the pressing blocks 3 can be one or more, and the pressing blocks are arranged according to actual needs.

The pressing block 3 may further be provided with a limiting groove 31 matched with the limiting portion 21. The pressing block 3 can be placed right above the bonding position of the two test pieces 5 through the limiting part 21 of the side plate 2 to provide vertical pressure for the bonding position. The vertical pressure can be understood as a pressure in a direction perpendicular to a horizontal plane where the two test pieces 5 are bonded.

The spacing groove 31 and the spacing part 21 can be in clearance fit. It is possible to reduce the pressure loss between the compact 3 and the stopper portion 21 due to frictional interference. Meanwhile, a gap may exist between the pressing block 3 and the side plate 2, and pressure loss caused by frictional interference between the pressing block 3 and the limiting portion 21 may also be reduced. The gap may be about 0.2mm in distance.

As shown in fig. 3 and fig. 4, the utility model discloses an auxiliary fixtures for manufacturing adhesive shear strength test piece can once only make multiunit test piece 5, and every test piece 5 of group includes two test pieces 5, and these two test pieces 5 are connected through adhesive 51. As shown in fig. 4, when a plurality of sets of test strips 5 are manufactured at one time, the plurality of sets of test strips 5 can be placed at intervals along one direction, and each set of adjacent test strips 5 can be connected together through a connecting portion 54, so that the placing position of each set of test strips 5 can be ensured. After the test pieces 5 are manufactured, the operator can cut the connecting portion 54 to separate each set of test pieces 5. The hatched area in fig. 4 is the overlapping portion between the two test pieces 5 of each set, i.e., the portion coated with the adhesive 51. Two bulges 52 can be arranged at two ends of the plurality of groups of test pieces 5 respectively, and the positioning groove 53 formed between the two bulges 52 is matched with the limiting part 21 to play a role in positioning the test pieces 5.

In a specific embodiment, the auxiliary tool may further include a pressure device 4, one end of the pressure device 4 is rotatably connected to the side plate 2 through a rotating shaft 22, and the pressure device 4 abuts against the press block 3 under the action of gravity. So that a sufficient pressure can be applied to the bonded portions of the two test pieces 5.

The pressing device 4 can perform a rotating movement with respect to the side plate 2 with the rotating shaft 22 as a fulcrum, thereby applying a vertically downward pressing force to the pressing block 3, and the above structure can be understood as a lever. The pressurizing device 4 and the rotating shaft 22 can be in clearance fit, and the rotating shaft 22 and the side plate 2 are in clearance fit or interference fit; or the pressurizing device 4 and the rotating shaft 22 can be in interference fit, and the rotating shaft 22 and the side plate 2 are in clearance fit.

The pressurizing means 4 may include a pressurizing lever 41, a holder 42, and a pressurizing portion 43. Wherein, the pressurizing rod 41 is connected to the rotating shaft 22 along one end in the axial direction thereof; the lower end of the support 42 is connected with the pressing block 3, the upper end of the support 42 is connected with the lower end of the pressurizing rod 41, and the connection can be understood that the pressurizing rod 41 is abutted against the upper end of the support 42 under the action of gravity; the pressurizing part 43 is connected to the pressurizing rod 41, thereby increasing the pressure of the pressurizing block 3 on the test piece 5 by using the lever principle.

The lower end of the support 42 may be provided with a groove 421, and the groove 421 is matched with the pressing block 3 and may play a role of connecting the support 42 and the pressing block 3.

The pressurizing part 43 comprises a pressurizing disc 431, a connecting rod 432 and a connecting seat 433, the connecting seat 433 is of a frame shape and is sleeved on the pressurizing rod 41, and the pressurizing disc 431 is connected with the connecting seat 433 through the connecting rod 432. A weight can be placed on the pressurizing disk 431, so that the effect of increasing the overall mass of the pressurizing part 43 is achieved, and the effect of increasing the pressure of the pressurizing device 4 on the pressing block 3 and the test piece 5 is achieved.

The pressing lever 41 may be provided with a catching groove 411, and one side of the frame-shaped coupling holder 433 may be placed in the catching groove 411. The catching groove 411 functions to fixedly connect the connecting portion 54 to the pressurizing rod 41. A snap connection can be understood.

The pressurizing rod 41 may be provided with a plurality of catching grooves 411 at intervals in its axial direction. The pressurizing part 43 can be placed in different clamping grooves 411, and different pressures can be applied to the support 42 by changing the length of the force arm by using the lever principle, namely the pressing block 3 and the pressure required by the test piece 5 below the pressing block 3 are exerted.

The base plate 1 is provided with a support portion 11 extending in the axial direction of the pressurizing rod 41. Because the length of the axial direction of the pressurizing rod 41 may be long, and the pressurizing portion 43 is placed on the pressurizing rod 41, the center of gravity of the whole auxiliary tool may be shifted to the outside of the bottom plate 1, so that the whole auxiliary tool may turn over, and the manufacturing failure may be caused. The supporting portion 11 plays a role in supporting the whole auxiliary tool, and can effectively prevent the auxiliary tool from turning on one side.

The utility model discloses an auxiliary fixtures of preparation adhesive shear strength test block places two test blocks 5 between two curb plates 2 on the base to compress tightly test block 5 through briquetting 3 and pressure device 4. And then, placing the whole auxiliary tool and the test piece 5 in an oven for heating and curing to complete the manufacture of the whole adhesive 51 shear strength test piece 5. Compared with the original test piece 5 prepared by the autoclave forming process. The auxiliary tool is used for manufacturing the test piece 5, the whole manufacturing process is more convenient and simplified, and the manufacturing cost can be reduced. The utility model discloses an auxiliary fixtures of preparation adhesive shear strength test block can also provide location, pressurized function to the preparation of 51 shear strength test blocks of adhesive 5 to can promote the precision of the overlap joint size between two test blocks 5.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides an auxiliary fixtures of preparation adhesive shear strength test piece which characterized in that includes:

a bottom plate for placing the test piece;

the two side plates are arranged on the bottom plate at intervals, and limit parts for positioning the test piece are arranged on the side plates; and

the pressing block is arranged between the two side plates;

the pressing block is matched with the bottom plate to clamp the test piece so as to stabilize the test piece.

2. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 1, wherein a limiting groove matched with the limiting part is arranged on the pressing block.

3. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 2, wherein the limiting groove is in clearance fit with the limiting part.

4. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 1, further comprising a pressurizing device, wherein one end of the pressurizing device is rotatably connected to the side plate through a rotating shaft, and the pressurizing device is supported on the pressing block under the action of gravity so as to press the test piece.

5. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 4, wherein the pressurizing device comprises a pressurizing rod, a support and a pressurizing part, and one end of the pressurizing rod in the axial direction is connected with the rotating shaft; the lower end of the support is connected with the pressing block, and the upper end of the support is connected with the lower end of the pressurizing rod; the pressurizing part is connected to the pressurizing rod to increase the pressure of the pressing block on the test piece.

6. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 5, wherein the pressing portion comprises a pressing plate, a connecting rod and a connecting seat, the connecting seat is frame-shaped and sleeved on the pressing rod, and the pressing plate is connected with the connecting seat through the connecting rod.

7. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 6, wherein a clamping groove is formed in the pressure rod, and one side of the frame-shaped connecting seat is placed in the clamping groove.

8. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 7, wherein a plurality of clamping grooves are arranged on the pressurizing rod at intervals along the axial direction of the pressurizing rod.

9. The auxiliary tool for manufacturing the adhesive shear strength test piece according to claim 6, wherein a support portion extends from the bottom plate along the axial direction of the pressure rod.