Sheet bonding and positioning mechanism for shear force test

Abstract

The utility model relates to the technical field of detection, and discloses a shearing force test sheet bonding positioning mechanism, which comprises a main positioning block, a positioning mechanism is fixed on the surface of the main positioning block, the positioning mechanism comprises a fixing plate, the fixing plate is fixed on the surface of the main positioning block, a first connecting rod is fixed on the surface of the fixing plate, and a second connecting rod is fixed on the surface of the first connecting rod. A second connecting rod is inserted into the first connecting rod, a spring is arranged on the surface of the second connecting rod, an auxiliary positioning block is fixed to the top end of the second connecting rod, and a rubber block is fixed into the auxiliary positioning block. The device is provided with the main positioning block and the fixing plate, the main positioning block and the fixing plate are matched with the auxiliary positioning block and the rubber block, so that the device can be positioned when a test piece is bonded, the precision and rapidness during bonding are improved, the bonding piece is placed on the main positioning block and the rubber block to be aligned and bonded, the precision of the device during working is improved, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a shear force testing sheet material bonding and positioning mechanism. Background Art

[0002] Shear forces are internal forces in any material and are usually caused by any external force acting perpendicular to the material or a force having a component acting tangential to the material. Shear forces are unaligned forces that push one part of the body in one direction and another part of the body in the opposite direction. When these forces are aligned with each other, they are called compressive forces.

[0003] A new shear force testing module with announcement number CN207623158U includes a base plate, a quick interface is arranged on the left side wall of the base plate, a PCB board connected to the quick interface is fixed on the base plate, and the PCB board is connected to a stress and strain digital analog sensor through a signal line; the stress and strain digital analog sensor is fixedly connected to a floating bracket, an alloy test head is installed at the front end of the stress and strain digital analog sensor, and a mechanical limit rod is arranged on the right side of the stress and strain digital analog sensor on the floating bracket; the floating bracket is fixedly installed on the base plate; a photoelectric sensor unit is embedded on the floating bracket; and a pneumatic locking device is arranged at the bottom of the base plate. The novel shear force test module has a unique modular design, a simple and compact structure, can quickly switch between test product models, improves test stability, improves test repeatability, and extends the service life of the test module. However, the existing device still has shortcomings. The test piece needs to be bonded before the shear force test, but the existing bonding method is mostly manual bonding, lacking a positioning mechanism, which is prone to errors during bonding. In addition, when the existing device is first bonded, since the colloid is elastic, it is easy to skew when pressed and fixed by hand. For this reason, we propose a shear force test sheet bonding and positioning mechanism to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a shear force test sheet bonding positioning mechanism to solve the problem that the positioning mechanism of the existing device proposed in the above background technology is insufficient and is easily skewed when pressed by hand at the beginning.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shear force test sheet bonding positioning mechanism, comprising a main positioning block, a positioning mechanism is fixed on the surface of the main positioning block, the positioning mechanism comprises a fixing plate, a fixing plate is fixed on the surface of the main positioning block, and a first connecting rod is fixed on the surface of the fixing plate, a second connecting rod is inserted into the interior of the first connecting rod, and a spring is arranged on the surface of the second connecting rod, a secondary positioning block is fixed to the top end of the second connecting rod, and a rubber block is fixed inside the secondary positioning block.

[0006] Preferably, a square groove is provided inside the main positioning block, and a square groove is provided inside the auxiliary positioning block, so as to facilitate placing the test piece therein for positioning.

[0007] Preferably, a rubber pad is provided at the bottom end of the main positioning block to prevent the bottom end of the device from slipping and avoiding displacement during operation.

[0008] Preferably, the second connecting rod is a square structure, and the second connecting rod is inserted inside the first connecting rod to prevent the auxiliary positioning block from rotating when moving up and down.

[0009] Preferably, the top end of the spring is fixedly connected to the auxiliary positioning block, and the bottom end of the spring is fixedly connected to the first connecting rod. Under the action of the spring, the test piece can be more stable when it is first bonded.

[0010] Preferably, a size scale is provided on the edge of the top surface of the auxiliary positioning block, and the auxiliary positioning block is horizontally aligned with the main positioning block to facilitate determination of the bonding distance.

[0011] Preferably, rubber blocks are evenly and equidistantly arranged inside the auxiliary positioning block, and the rubber blocks are circular in structure, so that the test piece placed on the auxiliary positioning block can play an anti-slip role.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The device is provided with a main positioning block and a fixing plate, which cooperate with a secondary positioning block and a rubber block, so that the device can be positioned when the test piece is bonded, thereby improving the accuracy and speed of bonding. By placing the bonding piece on the main positioning block and the rubber block for alignment and bonding, the accuracy of the device during operation is improved, and the working efficiency of the device is improved;

[0014] (2) The device is provided with a first connecting rod and a second connecting rod, which cooperate with a spring to make the device more stable and more evenly stressed at the beginning of bonding, and will not be skewed due to uneven hand pressure. After alignment, under the action of the spring, the auxiliary positioning block moves upward to make the adhesive sheet fit, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a side perspective schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a bottom-up stereoscopic schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a structural elevation diagram of the second connecting rod of the utility model;

[0019] Figure 4 It is a schematic front view of the structure of the utility model.

[0020] In the figure: 1, main positioning block; 2, positioning mechanism; 210, fixing plate; 220, first connecting rod; 230, second connecting rod; 240, spring; 250, auxiliary positioning block; 260, rubber block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a shear force test sheet bonding positioning mechanism, comprising a main positioning block 1, a positioning mechanism 2 is fixed on the surface of the main positioning block 1, the positioning mechanism 2 comprises a fixing plate 210, a fixing plate 210 is fixed on the surface of the main positioning block 1, and a first connecting rod 220 is fixed on the surface of the fixing plate 210, a second connecting rod 230 is inserted inside the first connecting rod 220, and a spring 240 is arranged on the surface of the second connecting rod 230, a secondary positioning block 250 is fixed on the top end of the second connecting rod 230, and a rubber block 260 is fixed inside the secondary positioning block 250;

[0023] A square groove is provided inside the main positioning block 1, and a square groove is provided inside the auxiliary positioning block 250. A rubber pad is provided at the bottom end of the main positioning block 1. The second connecting rod 230 is a square structure. The second connecting rod 230 is inserted inside the first connecting rod 220. The top end of the spring 240 is fixedly connected to the auxiliary positioning block 250, and the bottom end of the spring 240 is fixedly connected to the first connecting rod 220. A size scale is provided on the top surface edge of the auxiliary positioning block 250. The auxiliary positioning block 250 is horizontally aligned with the main positioning block 1. Rubber blocks 260 are evenly provided at equal distances inside the auxiliary positioning block 250. The rubber blocks 260 are circular structures. Two test pieces are placed on the main positioning block 1 and the auxiliary positioning block 250. The test piece on the auxiliary positioning block 250 is pressed downward, and the test piece on the main positioning block 1 is pushed to the right. The bonding distance is adjusted, and then the two groups of test pieces are bonded under the elastic force of the spring 240 to improve the positioning effect and bonding effect of the device.

[0024] Working principle: When the device is working, place the test piece 1 on the auxiliary positioning block 250 and press it down to keep the spring 240 in a compressed state, then place the test piece 2 on the main positioning block 1 and push it to the right, observe the scale on the auxiliary positioning block 250, determine the push-out distance, and apply glue to the bottom of the test piece 2 before placing it. After determining the distance, release the test piece 1 on the auxiliary positioning block 250 and press the test piece 2. Under the action of the spring 240, the test piece 1 will move upward and bond with the pushed-out part of the test piece 2, making the test piece bonding more accurate and improving the working effect of the device. The above is the entire working principle of the utility model.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A shear force test sheet bonding positioning mechanism, comprising a main positioning block (1), characterized in that: A positioning mechanism (2) is fixed on the surface of the main positioning block (1), and the positioning mechanism (2) comprises a fixing plate (210). The fixing plate (210) is fixed on the surface of the main positioning block (1), and a first connecting rod (220) is fixed on the surface of the fixing plate (210). A second connecting rod (230) is inserted into the interior of the first connecting rod (220), and a spring (240) is provided on the surface of the second connecting rod (230). A secondary positioning block (250) is fixed at the top end of the second connecting rod (230), and a rubber block (260) is fixed inside the secondary positioning block (250).

2. A shear force test sheet bonding and positioning mechanism according to claim 1, characterized in that: The main positioning block (1) has a square groove inside, and the auxiliary positioning block (250) has a square groove inside.

3. A shear force test sheet bonding and positioning mechanism according to claim 1, characterized in that: A rubber pad is provided at the bottom end of the main positioning block (1).

4. A shear force test sheet bonding and positioning mechanism according to claim 1, characterized in that: The second connecting rod (230) is a square structure, and the second connecting rod (230) is inserted inside the first connecting rod (220).

5. A shear force test sheet bonding and positioning mechanism according to claim 1, characterized in that: The top end of the spring (240) is fixedly connected to the auxiliary positioning block (250), and the bottom end of the spring (240) is fixedly connected to the first connecting rod (220).

6. A shear force test sheet bonding and positioning mechanism according to claim 1, characterized in that: The top surface edge of the auxiliary positioning block (250) is provided with a size scale, and the auxiliary positioning block (250) is horizontally aligned with the main positioning block (1).

7. A shear force test sheet bonding and positioning mechanism according to claim 1, characterized in that: Rubber blocks (260) are evenly arranged at equal distances inside the auxiliary positioning block (250), and the rubber blocks (260) are of a circular structure.

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