Locating tool suitable for lap joint test pieces with various widths

Abstract

The utility model relates to a lap joint test piece positioning tool suitable for various widths, which comprises a positioning base and at least four positioning blocks, the positioning base is provided with a first groove, second grooves and riveting holes, the positioning blocks and the second grooves are uniformly distributed and symmetrically arranged on the two sides of the first groove, and the riveting holes are formed in the positioning blocks. The lower part of the positioning block can be placed in the second groove and is matched with the second groove in shape so as to position the single-lap-joint test block, and the riveting open hole is formed in the central position of the positioning base so as to rivet the single-lap-joint test block; the single lap joint test piece riveting device is reasonable in design, simple in structure and convenient and rapid to adjust and replace, solves the positioning problem of existing single lap joint test pieces of various width specifications in the riveting process by rapidly replacing the positioning blocks of different specifications, reduces tool types, is good in universality and low in cost, and can adapt to the test pieces of various width specifications.

Description

Technical Field

[0001] This utility model belongs to the field of riveting technology and relates to a positioning fixture for overlapping test pieces applicable to various widths. Background Technology

[0002] In manufacturing industries such as automobiles and aerospace, FDS (Flow Drill Screw) and SPR (Self Piercing Riveting) riveting are commonly used connection methods for materials such as aluminum alloys and steel. However, different materials and riveting parameters have varying degrees of impact on the riveting effect. To enhance the reliability of riveting, it is necessary to conduct riveting tests on test pieces of various widths to verify different riveting effects. This has resulted in a wide variety of riveting tooling, which lacks versatility and has inconsistent specifications, leading to high tooling costs and diverse types. Therefore, there is a need for a positioning tooling suitable for overlapping test pieces of various widths to achieve quick and standardized tooling adjustments and cost reduction. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning fixture for overlapping test pieces of various widths. By adjusting and replacing positioning blocks of different specifications, it can adapt to the positioning of single overlapping test pieces of various specifications during riveting. The adjustment is convenient and quick, and it has strong versatility, which can meet the various riveting test needs of users.

[0004] To achieve the above objectives, embodiments of this utility model provide a positioning fixture for overlapping test pieces applicable to various widths, comprising: a positioning base and at least four positioning blocks. The positioning base is provided with a first groove, a second groove, and a riveting opening. The positioning blocks and the second groove are evenly distributed and symmetrically arranged on both sides of the first groove. The lower part of the positioning block can be placed in the second groove and is adapted to the shape of the second groove to achieve positioning of the single overlapping test piece. The riveting opening is located at the center of the positioning base to realize the riveting operation of the single overlapping test piece.

[0005] Furthermore, the positioning block can be replaced to achieve positioning of single-lapped test pieces of different widths.

[0006] Furthermore, the second groove is provided with a second chamfer to facilitate the placement and removal of the positioning block.

[0007] Furthermore, a first chamfer is provided at the top corner of the first groove to facilitate the placement and removal of single-overlap test pieces.

[0008] This utility model relates to a positioning fixture for overlapping test pieces applicable to multiple widths. The beneficial effects are as follows: The positioning fixture for overlapping test pieces applicable to multiple widths provided by the embodiments of this utility model is reasonably designed, has a simple structure, and is convenient and quick to adjust and replace. By quickly replacing positioning blocks of different specifications, it solves the positioning problem of single overlapping test pieces of multiple widths during the riveting process, reduces the types of fixtures, has good versatility, reduces the cost of use, and can adapt to test pieces of multiple widths, meeting the fixture positioning needs of users for multiple test pieces. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0010] Figure 1 A three-dimensional structural diagram of a positioning fixture for overlapping test pieces of various widths provided in this embodiment of the utility model;

[0011] Figure 2 Top view of a positioning fixture for overlapping test pieces of various widths provided in an embodiment of this utility model;

[0012] Figure 3 This is a three-dimensional structural diagram of the positioning base provided in an embodiment of the present utility model;

[0013] Figure 4 A top view of a single-overlapping specimen in a positioning fixture for overlapping specimens of various widths, provided for an embodiment of this utility model.

[0014] Figure 5 A three-dimensional structural diagram of a single-lapped test piece provided in an embodiment of this utility model.

[0015] In the picture:

[0016] 1. Positioning base; 11. First groove; 111. First chamfer; 12. Second groove; 121. Second chamfer; 13. Riveting opening; 2. Positioning block; 3. Single lap joint test piece. Detailed Implementation

[0017] 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 only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. It should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The following is a detailed description of a positioning fixture for overlapping test pieces applicable to various widths, provided by an embodiment of the present invention, with reference to the accompanying drawings.

[0021] Example

[0022] Figure 1 This invention provides a schematic diagram of a three-dimensional structure of a positioning fixture for overlapping test pieces of various widths, as shown in an embodiment of the present invention. Figure 2 This shows a top view of the lap joint specimen positioning fixture applicable to various widths provided in an embodiment of the present invention; Figure 3 A three-dimensional structural diagram of the positioning base provided in an embodiment of this utility model is shown; Figure 4 This invention provides a top view of a single-overlapping specimen in a positioning fixture for overlapping specimens of various widths, as shown in an embodiment of the present invention. Figure 5 A three-dimensional structural diagram of a single-lapped specimen provided in an embodiment of this utility model is shown. Figures 1 to 5As shown in the figure, the positioning fixture for overlapping test pieces of various widths provided by this utility model embodiment is suitable for riveting tests on single overlapping test pieces 3 of various width types, in order to test the influence of different materials or different riveting edge distances on the riveting test effect. The positioning fixture for overlapping test pieces of various widths provided by this utility model embodiment includes: a positioning base 1 and at least four positioning blocks 2, wherein the positioning base 1 is provided with a first groove 11, a second groove 12, and a riveting opening 13. The positioning blocks 2 and the second groove 12 are evenly distributed and symmetrically arranged on both sides of the first groove 11, thereby ensuring that single overlapping test pieces 3 of various width specifications are always in the middle position of the positioning base 1. It is worth noting that the number of positioning blocks 2 and the second groove 12 can be set to four, six, eight, ..., so that the positioning blocks 2 can position the single overlapping test pieces 3. The positioning is more accurate, stable and reliable, and the two relatively set second grooves 12 can be connected to each other to form a groove structure; the lower part of the positioning block 2 can be placed in the second groove 12 and adapt to the shape of the second groove 12 to realize the positioning of the single overlapping test piece 3, while avoiding the shaking phenomenon of the positioning block 2; the upper part of the positioning block 2 should be higher than the bottom plane of the first groove 11 and be able to contact and connect with the side of the single overlapping test piece 3, one end of the positioning block 2 can abut the side of the first groove 11, and the other end of the positioning block 2 can abut the side of the single overlapping test piece 3; the riveting opening 13 is set at the center of the positioning base 1 to realize the riveting operation of the single overlapping test piece 3, which makes it easy to use the riveting gun on the riveting equipment to penetrate into the riveting opening 13 to realize the riveting operation of the single overlapping test piece 3.

[0023] In this embodiment of the utility model, a positioning fixture for overlapping test pieces applicable to multiple widths is provided. Furthermore, the positioning block 2 is replaceable to achieve positioning of single overlapping test pieces 3 of different widths. This function can be achieved by replacing the positioning block 2 with different lengths, while the positioning base 1 remains unchanged. This greatly enhances the versatility of the positioning fixture, reduces the number of fixture specifications, saves materials, thereby reducing costs and facilitating fixture management. It is worth noting that the cross-sectional shape of the positioning block 2 can be set to various shapes such as circular, square, and trapezoidal, including but not limited to the aforementioned cross-sectional shapes, as long as it can adapt to the shape of the second groove 12. No specific limitation is made to the cross-sectional shape of the positioning block 2 here.

[0024] In a positioning fixture for overlapping test pieces of various widths provided in this embodiment of the utility model, the second groove 12 is further provided with a second chamfer 121 to facilitate the placement and removal of the positioning block 2. Figure 2In the top view of the second groove 12, it is rectangular, and four second chamfers 121 are respectively set at the four apex positions in the top view of the second groove 12; the apex of the first groove 11 is provided with a first chamfer 111 to facilitate the placement and removal of the single overlapping test piece 3. The shape of the first groove 11 is set as rectangular, so the four first chamfers 111 are respectively set at the four apex positions of the first groove 11. By using the first chamfer 111 and the second chamfer 121, the disadvantage of inconvenience in placement and removal due to the small gap between the single overlapping test piece 3 and the positioning base 1, the positioning block 2 and the second groove 12 is effectively avoided. At the same time, the influence of the chamfer caused by the rounded corner of the machining tool at the apex of the groove is reduced, the positioning is more accurate, and the placement and removal are quick and convenient.

[0025] Compared with the prior art, the positioning fixture for overlapping test pieces with various widths provided in this utility model embodiment is reasonably designed, has a simple structure, and is convenient and quick to adjust and replace. By replacing the positioning blocks 2 of different specifications, it solves the positioning problem of single overlapping test pieces 3 with various widths during the riveting process, reduces the types of fixtures, has good versatility, reduces the cost of use, can adapt to test pieces with various widths, and meets the fixture positioning needs of users for various test pieces.

[0026] The following points need to be explained:

[0027] (1) Unless otherwise defined, the same reference numerals in the embodiments of this utility model and the accompanying drawings have the same meaning.

[0028] (2) The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment. Other structures can refer to the general design.

[0029] (3) For clarity, some structures in the drawings used to describe embodiments of the present invention may be enlarged or reduced, that is, these drawings are not drawn to actual scale.

[0030] (4) Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A positioning fixture for overlapping test pieces of various widths, characterized in that, include: The positioning base (1) and at least four positioning blocks (2) are provided. The positioning base (1) is provided with a first groove (11), a second groove (12) and a riveting opening (13). The positioning blocks (2) and the second groove (12) are evenly distributed and symmetrically arranged on both sides of the first groove (11). The lower part of the positioning block (2) can be placed in the second groove (12) and is adapted to the shape of the second groove (12) to realize the positioning of the single overlapping test piece (3). The riveting opening (13) is located at the center of the positioning base (1) to realize the riveting operation of the single overlapping test piece (3).

2. The positioning fixture for overlapping test pieces applicable to multiple widths as described in claim 1, characterized in that, The positioning block (2) can be replaced to achieve positioning of single-lapped test pieces (3) of different width specifications.

3. The positioning fixture for overlapping test pieces applicable to multiple widths as described in claim 1, characterized in that, The second groove (12) is provided with a second chamfer (121) to facilitate the placement and removal of the positioning block (2).

4. The positioning fixture for overlapping test pieces applicable to multiple widths according to claim 1, characterized in that, The first groove (11) has a first chamfer (111) at the top corner to facilitate the placement and removal of the single-overlap test piece (3).

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