A positioning device for a core material shear bonding tool

Abstract

The utility model discloses a positioning device for core material shearing and bonding tool, including support plate, positioning rod, thimble and locking assembly, the support plate has two, presents upper and lower parallel symmetry arrangement, and the clamping position of core material shearing and bonding tool is formed between two support plates, the width of support plate is consistent with the width of core material shearing and bonding tool and core material sample, the left and right sides of support plate are provided with respectively before widening structure and after widening structure along its width direction symmetry, be provided with first through -hole for installing positioning rod respectively on before widening structure and after widening structure, every first through -hole is provided with corresponding thimble hole around, for installing thimble, every before widening structure and after widening structure and be located first through -hole around are provided with second through -hole for installing locking assembly. The utility model can effectively solve the problem that core material sample and core material shearing and bonding tool are easy to appear when bonding inaccurate positioning, inconvenient operation, uneven stress etc.

Description

Technical Field

[0001] This utility model relates to the technical field of composite core material bonding and positioning, and in particular to a positioning device for core material cutting and bonding fixtures. Background Technology

[0002] In the core material sample shearing and bonding process, both the core material sample and the core material shearing and bonding fixture need to be coated with adhesive. The core material sample is then placed on the fixture, and excess adhesive is squeezed out to firmly fix the sample to the fixture. High-temperature curing then bonds the sample and fixture together. Because both the sample and the fixture are coated with adhesive, the sample can slide on the fixture. Currently, methods such as using a flat plate or visual alignment are commonly used, which is time-consuming and labor-intensive. During the overall adhesive removal and flipping process, misalignment between the sample and the fixture is prone to occur. The degree of "skewness" varies greatly depending on the operator, requiring a high level of experience. Furthermore, because the core material shearing and bonding fixture is relatively long, misalignment during bonding can lead to uneven distribution of clamping tools or fixtures, resulting in inconsistent stress across the entire sample and severely affecting the accuracy of the shear test results. Therefore, there is an urgent need for a positioning device for core material shearing and bonding fixtures to solve the problems of inaccurate positioning, inconvenient operation, and uneven force that easily occur when bonding core material samples to core material shearing and bonding fixtures in the existing technology, so as to improve bonding efficiency and quality and reduce dependence on personnel experience. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a positioning device for a core material shearing and bonding fixture, which can effectively solve problems such as inaccurate positioning, inconvenient operation, and uneven force when bonding core material samples with the core material shearing and bonding fixture.

[0004] The objective of this utility model can be achieved by adopting the following technical solutions:

[0005] A positioning device for a core material shearing and bonding fixture includes a support plate, positioning rods, ejector pins, and a locking assembly. Two support plates are arranged symmetrically in parallel, forming a clamping position for the core material shearing and bonding fixture between them. The width of each support plate matches the width of the core material shearing and bonding fixture and the core material sample. A front widening structure and a rear widening structure are symmetrically arranged on the left and right sides of each support plate along their width direction. Each front and rear widening structure has a first through hole for mounting the positioning rod. The first through holes on the two support plates correspond one-to-one, and the number of positioning rods corresponds one-to-one with the number of first through holes on either support plate. A corresponding ejector pin is located next to each first through hole. Holes are used to install ejector pins. The axis of each ejector pin hole is perpendicular to the axis of the corresponding first through hole. Multiple positioning rods are inserted into the two corresponding first through holes, and the multiple positioning rods contact the front and rear end faces of the left and right sides of the core material shearing and bonding fixture, respectively. The ejector pins are used to fix the positioning rods in the first through holes, and then the core material shearing and bonding fixture and the core material sample are positioned by the multiple positioning rods. Each front widening structure and rear widening structure is provided with a second through hole for installing locking components next to the first through hole. The second through holes of the two support plates correspond one-to-one, and the number of locking components is consistent with the number of second through holes of any support plate and corresponds one-to-one. The two support plates are locked by multiple locking components.

[0006] Furthermore, the first through hole of the front widening structure is a round hole, and the first through hole of the rear widening structure is an oblong hole, which is arranged along the width direction of the support plate.

[0007] Furthermore, the locking assembly includes a connecting screw and a matching nut.

[0008] Furthermore, a gap is maintained between the locking assembly and the core material cutting and bonding fixture.

[0009] Furthermore, the support plate is made of aluminum alloy.

[0010] Furthermore, the width of the front widening structure and the rear widening structure is 5 to 8 mm.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] 1. The positioning device of this utility model has the advantages of simple structure, light weight and convenient operation. The positioning rod positions the core material sample and the core material shearing and bonding fixture, which can effectively avoid the misalignment phenomenon such as "skew" and "tilt" that easily occurs after the core material sample and the core material shearing and bonding fixture are coated with glue, reduce the experience requirements of the operator and greatly improve work efficiency.

[0013] 2. The positioning device of this utility model sets the first through hole on one side of the support plate as a round hole and the first through hole on the other side of the support plate as an oblong hole, so that even core material samples with width deviations can be bonded and positioned.

[0014] 3. This utility model features a widened structure on both sides of the support plate, with a locking component mounted on the widened structure. The locking component applies pressure evenly to the core material sample and the core material shearing and bonding fixture, ensuring consistent pressure on the locking screws and thus ensuring a firm fit between the two, squeezing out excess adhesive. At the same time, a gap is maintained between the locking component and the core material shearing and bonding fixture to facilitate adhesive removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the positioning device of this utility model.

[0016] Figure 2 This is a front view of the positioning device of this utility model.

[0017] Figure 3 This is a top view of the support plate of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the positioning device of this utility model for positioning the core material cutting and bonding fixture.

[0019] Figure 5 This is a front view of the positioning device of this utility model used for positioning the core material cutting and bonding fixture.

[0020] Figure 6 This is a top view of the positioning device of this utility model used to position the core material cutting and bonding fixture. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] like Figures 1 to 3As shown, this embodiment provides a positioning device for a core material shearing and bonding fixture, including a support plate 1, a positioning rod 2, a pin 3, and a locking assembly. There are two support plates 1, arranged symmetrically in parallel, forming a clamping position for the core material shearing and bonding fixture 6 between the two support plates 1. The width of the support plate 1 is consistent with the width of the core material shearing and bonding fixture 6 and the core material sample 7. A front widening structure 101 and a rear widening structure 102 are symmetrically arranged on the left and right sides of the support plate 1 along its width direction, respectively. In this embodiment, the width of the front widening structure 101 and the rear widening structure 102 is 5-8 mm. The front widening structure 101 and the rear widening structure 102 are respectively provided with first through holes for installing the positioning rod 2. The first through holes of the two support plates 1 correspond one-to-one, and the number of positioning rods 2 is consistent with the number of first through holes of any support plate 1 and corresponds one-to-one. A corresponding positioning rod is provided next to each first through hole. The ejector pin hole 104 is used to install the ejector pin 3. The axis of each ejector pin hole is perpendicular to the axis of the corresponding first through hole. Multiple positioning rods 2 are inserted into the corresponding two first through holes, and the multiple positioning rods 2 are respectively in contact with the front and rear end faces of the left and right sides of the core material shearing and bonding fixture 6. The positioning rods 2 in the first through hole are fixed by the ejector pin 3, and then the core material shearing and bonding fixture 6 and the core material sample 7 are positioned by the multiple positioning rods 2 to ensure that the two do not slide. Each front widening structure 101 and rear widening structure 102 is provided with a second through hole 105 for installing locking components next to the first through hole. The second through holes 105 of the two support plates 1 correspond one-to-one, and the number of locking components is consistent with the number of second through holes 105 of any support plate 1 and corresponds one-to-one. The two support plates 1 are locked by multiple locking components to ensure that the pressure on the entire sample is uniform.

[0023] The first through hole of the front widening structure 101 is a round hole 1031, and the first through hole of the rear widening structure 102 is an oblong hole 1032. The oblong hole 1032 is set along the width direction of the support plate 1. When the width of the core material sample 7 deviates, the position of the positioning rod 2 can be adjusted through the oblong hole.

[0024] The locking assembly includes a connecting screw 4 and a matching nut 5. A gap is maintained between the locking assembly and the core material cutting and bonding fixture 6 to facilitate the removal of adhesive from both ends of the core material cutting and bonding fixture 6.

[0025] The support plate 1 is made of aluminum alloy, which ensures rigidity while being lightweight, making it easy for personnel to operate.

[0026] like Figures 4 to 6 As shown, the method of using the positioning device of this utility model to bond and cut PVC samples is as follows:

[0027] After applying adhesive to the core material cutting and bonding fixture and the core material sample, assemble them together. Then, place the entire fixture and sample in the clamping positions of the two support plates. Align the core material sample with the fixture using the positioning rod, and then tighten it with screws, ensuring consistent screw pressure. Loosen the ejector pin and disassemble the positioning rod. Finally, wipe away any excess adhesive and place the sample in the oven. The entire process is simple and convenient, and effectively avoids misalignment between the fixture and sample, greatly improving work efficiency.

[0028] Furthermore, during the bonding of balsa wood shear samples, due to the balsa wood density of 150 kg / m³, 3 The bonding of balsa wood requires a certain amount of pressure to ensure that the balsa wood and the core material do not fall off ineffectively during the shear bonding test. Therefore, by using the positioning device of this embodiment to apply a certain torque, the torque on the entire sample can be made uniform, which can effectively improve the effectiveness of the sample test.

[0029] The above description is only a preferred embodiment of this utility model patent, but the protection scope of this utility model patent is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in this utility model patent, based on the technical solution and utility model patent concept of this utility model patent, shall fall within the protection scope of this utility model patent.

Claims

1. A positioning device for a core material cutting and bonding fixture, characterized in that: The device includes a support plate, positioning rods, ejector pins, and a locking assembly. There are two support plates arranged symmetrically in parallel, forming a clamping position for the core material shearing and bonding fixture between them. The width of each support plate matches the width of the core material shearing and bonding fixture and the core material sample. A front widening structure and a rear widening structure are symmetrically arranged on the left and right sides of each support plate along their width direction. Each front and rear widening structure has a first through hole for mounting the positioning rod. The first through holes on the two support plates correspond one-to-one, and the number of positioning rods corresponds one-to-one with the number of first through holes on either support plate. Each first through hole is accompanied by a corresponding ejector pin hole for mounting the ejector pin. The axis of each pin hole is perpendicular to the axis of the corresponding first through hole. Multiple positioning rods are inserted into the two corresponding first through holes, and the multiple positioning rods contact the front and rear end faces of the left and right sides of the core material shearing and bonding fixture, respectively. The positioning rods in the first through holes are fixed by the pins, and the core material shearing and bonding fixture and the core material sample are positioned by the multiple positioning rods. Each front widening structure and rear widening structure is provided with a second through hole for installing locking components next to the first through hole. The second through holes of the two support plates correspond one-to-one, and the number of locking components is consistent with the number of second through holes of any support plate and corresponds one-to-one. The two support plates are locked by multiple locking components.

2. The positioning device for a core material shear bonding tool according to claim 1, wherein: The first through hole of the front widening structure is a round hole, and the first through hole of the rear widening structure is an oblong hole, which is set along the width direction of the support plate.

3. The positioning device for a core material shear bonding tooling according to claim 1, wherein: The locking assembly includes a connecting screw and a matching nut.

4. The positioning device for a core material shear bonding tooling according to claim 1, wherein: A gap is maintained between the locking assembly and the core material cutting and bonding fixture.

5. The positioning device for a core material shear bonding tooling according to claim 1, wherein: The support plate is made of aluminum alloy.

6. The positioning device for a core material shear bonding tool according to claim 1, wherein: The widths of the front widening structure and the rear widening structure are 5 to 8 mm.

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