Positioning jig for curved surface structural member

Abstract

The utility model discloses a positioning jig for a curved surface structural member, the positioning end part of the jig is matched with a product, the positioning end part is provided with an air passage, the jig is provided with a positioning structure and a limiting structure, and the air passage is communicated with an air pump. According to the utility model, the positioning end part of the jig is provided with the air passage and the air hole which are communicated with the air pump, so that a product can be uniformly adsorbed to enable the curved surface of the product to be uniformly attached to the jig, and is matched with the positioning structure and the limiting structure on the jig, so that the curved surface structure product can be tightly fixed on the jig by one jig, the positioning operation is convenient and fast, and the production efficiency is improved. Clamping marks cannot be left on the product, and the jig is simple in structure and small in size; by arranging the base and arranging the first air channel, the vent hole groove and the mounting hole groove which are communicated with one another on the base, the structure of the air channel on the jig body can be simplified, the machining difficulty of the jig body can be reduced, the machining yield of the jig body can be improved, jig bodies of different structures can be used in cooperation with the same base, the production cycle of the jig is shortened, and the jig cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a positioning jig for a curved surface structural part. Background Art

[0002] During production, it is often necessary to clamp and fix a product with a curved outer contour. Usually, the method is to clamp and fix the flat end of the product, or use multiple planes on the positioning jig to cooperate to clamp and fix the arc or curved surface. The jig using this fixing method is convenient for processing and production, and the cost is relatively low. However, this positioning and clamping method is likely to leave clamping marks on the product. Especially for the jig using multi-surface joint clamping, if it is an integral structure, it generally occupies a large space. If it is a split structure, it may be necessary to adjust the relative position or angle between the split structures multiple times. Summary of the Utility Model

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a positioning jig for a curved surface structural part, which can evenly adsorb the product so that its curved surface evenly abuts against the jig, and cooperates with the positioning structure and the limiting structure on the jig. One jig can tightly fix the curved surface structural product on the jig. The positioning operation is convenient, and no clamping marks will be left on the product. The jig has a simple structure and a small volume.

[0004] To solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0005] The positioning jig for a curved surface structural part includes a jig body; a curved surface adapted to the inner wall or outer wall of the product is formed at the positioning end of the jig body. The positioning end is communicated with a plurality of air holes, and each air hole passes through the jig body and is communicated with an air pump through a pipeline. A positioning structure is arranged on the jig body at and / or beside the positioning end, and a limiting structure is arranged beside the positioning end of the jig body.

[0006] As a further elaboration of the above technical solution:

[0007] In the above technical solution, an air passage communicated with each other is further arranged on the positioning end, and one open end of each of the plurality of air holes is arranged on the air passage.

[0008] In the above technical solution, the positioning structure includes at least one positioning slot and / or positioning protrusion, the limiting structure includes at least one limiting protrusion, and an avoidance groove is formed between each limiting protrusion and the positioning end. The positioning structure, the limiting structure and the jig body are integrally formed.

[0009] In the above technical solution, it further includes a base. An installation hole groove adapted to the jig body is provided at the upper end of the base. A plurality of first air holes and an air vent groove communicating with the installation hole groove are provided on the base. Each of the first air holes penetrates through the base and is communicated with an air pump through a pipeline. Each of the air vent grooves penetrates through the base and extends to its side wall. A plurality of second air holes are provided on the air passage of the jig body. Each of the second air holes penetrates through the jig body and is communicated with the installation hole groove.

[0010] In the above technical solution, the installation hole groove is a stepped structure with a larger upper part and a smaller lower part. Its larger end is adapted to the jig body, and its depth is less than the height of the jig body. Each of the first air holes and the second air holes falls inside the contour or the contour projection of the smaller end of the installation hole groove. Each of the air vent grooves is provided on the side wall of the smaller end of the installation hole groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing an air passage and air holes communicated with an air pump at the positioning end of the jig, the product can be evenly adsorbed so that its curved surface is evenly attached to the jig. Cooperating with the positioning structure and the limiting structure on the jig, a single jig can tightly fix the curved surface structure product on the jig. The positioning operation is convenient, and no clamping marks will be left on the product. The jig has a simple structure and a small volume. By providing a base, the structure of the air passage on the jig body can be simplified, the processing difficulty of the jig body can be reduced, the processing yield can be improved, and jig bodies with different structures can be used in cooperation with the same base, shortening the production cycle of the jig and reducing the jig cost. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the first embodiment;

[0013] Figure 2 is a schematic structural diagram of the second embodiment;

[0014] Figure 3 is a top view structural diagram of the third embodiment;

[0015] Figure 4 is a sectional structural diagram of the third embodiment;

[0016] Figure 5 is an exploded structural diagram of the third embodiment;

[0017] Figure 6 is an exploded structural diagram of the fourth embodiment.

[0018] In the figure: 10, fixture body; 11, positioning end; 12, air hole; 13, positioning structure; 14, limiting structure; 15, air duct; 20, base; 1, positioning card slot; 2, positioning protrusion; 3, limiting protrusion; 4, clearance groove; 5, mounting hole groove; 6, first air hole; 7, second air hole; 8, ventilation hole groove. Detailed implementation mode

[0019] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0020] The embodiments described by referring to the attached drawings are exemplary and are intended to explain this application, and should not be construed as a limitation to this application. In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings. They are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "several" and "multiple" is two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but through other features between them. Moreover, the first feature being "above", "above", and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the horizontal height of the first feature is lower than that of the second feature.

[0021] AsFigure 1-2 As shown, the positioning fixture for the curved surface structural part includes a fixture body 10; a positioning end 11 of the fixture body 10 is formed with a curved surface adapted to the inner wall or outer wall of the product. The positioning end 11 is communicated with a plurality of air holes 12. Each air hole 12 passes through the fixture body 10 and is communicated with an air pump through a pipeline. A positioning structure 13 is provided on the fixture body 10 on and / or beside the positioning end 11, and a limiting structure 14 is provided beside the positioning end 11 of the fixture body 10; an air passage 15 which is communicated with each other is further provided on the positioning end 11, and one open end of each of the plurality of air holes 12 is arranged on the air passage 15.

[0022] As Figure 3 , 6 As shown, in some embodiments of the present invention, the positioning structure 13 includes at least one positioning slot 1 and / or positioning protrusion 2, the limiting structure 14 includes at least one limiting protrusion 3, and an avoidance groove 4 is formed between each limiting protrusion 3 and the positioning end 11. The positioning structure 13, the limiting structure 14 and the fixture body 10 are integrally formed.

[0023] During use, place the curved surface structural part on the positioning end 11. The positioning structure 12 and the limiting structure 13 respectively position and limit the curved surface structural part from different ends. After completion, start the air pump to extract the air in the air passage 15, and adsorb the inner wall / outer wall of the curved surface structural part to make it completely close to the positioning end 11. The fixture has a simple structure, convenient operation and high positioning efficiency; after processing, turn off the air pump, and the avoidance groove 4 can communicate the air passage 15 with the outside, ensuring that the air pressures on the inner and outer surfaces of the curved surface structural part are the same, which is convenient for quickly removing the curved surface structural part without pulling and deforming it.

[0024] In the present invention, by providing an air passage and air holes communicated with an air pump at the positioning end 11 of the fixture, the product can be evenly adsorbed so that its curved surface is evenly close to the fixture. Cooperating with the positioning structure 13 and the limiting structure 14 on the fixture, one fixture can tightly fix the curved surface structural product on the fixture. The positioning operation is convenient, and no clamping marks will be left on the product. The fixture has a simple structure and a small volume.

[0025] As Figure 3-6 As shown, in some embodiments of the present invention, it further includes a base 20. An installation hole groove 5 adapted to the fixture body 10 is provided at the upper end of the base 20. A plurality of first air holes 6 and ventilation hole grooves 8 communicated with the installation hole groove 5 are provided on the base 20. Each first air hole 6 penetrates through the base 20 and is communicated with an air pump through a pipeline. Each ventilation hole groove 8 penetrates through the base 20 and extends to its side wall. A plurality of second air holes 7 are provided on the air passage 15 of the fixture body 10. Each second air hole 7 penetrates through the fixture body 10 and is communicated with the installation hole groove 5.

[0026] For the convenience of removing the fixture body 10 from the base 20, in the above embodiment, as Figure 4-6 shown, the mounting hole groove 5 is a stepped structure with a larger upper end and a smaller lower end. Its larger end is adapted to the fixture body 10, and its depth is less than the height of the fixture body 10. Each first air hole 6 and second air hole 7 falls inside the contour or the contour projection of the smaller end of the mounting hole groove 5, and each ventilation hole groove 8 is provided on the side wall of the smaller end of the mounting hole groove 5.

[0027] When the inner contour or outer contour of the curved surface structure is relatively complex, the separated base 20 and fixture body 10 facilitate separating the positioning end 11 of the fixture and machining it separately, reducing the machining difficulty of the fixture and improving its qualified rate.

[0028] It can be understood that providing the base 20 around the bottom periphery of the fixture body 10 can simplify the structure of the air passage 15 on the fixture body 10, reduce the machining difficulty of the fixture body 10, improve its machining qualified rate, and fixture bodies 10 with different structures can all be used in cooperation with the same base 20, shortening the production cycle of the fixture and reducing the fixture cost; the stepped mounting hole groove 5 on the base 20 can ensure the smoothness of the air path, and the ventilation hole groove 8 can connect the bottom end of the fixture body 10 with the outside to avoid forming a vacuum between the two, facilitating the quick disassembly and assembly of the fixture body 10.

[0029] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. Positioning fixture for a curved surface structural member, comprising a fixture body; characterized in that, The positioning end of the fixture body is formed with a curved surface adapted to the inner wall or outer wall of the product. The positioning end is communicated with a plurality of air holes, and each of the air holes passes through the fixture body and is communicated with an air pump through a pipeline. A positioning structure is arranged on the fixture body at and / or beside the positioning end, and a limiting structure is arranged beside the positioning end of the fixture body.

2. The positioning fixture for the curved surface structural member according to claim 1, wherein An air passage communicated with each other is further arranged on the positioning end, and one open end of each of the plurality of air holes is arranged on the air passage.

3. The positioning jig for the curved surface structural member according to claim 1, characterized in that, The positioning structure includes at least one positioning slot and / or positioning protrusion. The limiting structure includes at least one limiting protrusion. A clearance groove is formed between each limiting protrusion and the curved surface. The positioning structure, the limiting structure and the fixture body are integrally formed.

4. The positioning jig for the curved surface structural member according to any one of claims 1-3, characterized in that, It further includes a base. An installation hole groove adapted to the fixture body is arranged at the upper end of the base. A plurality of first air holes and ventilation hole grooves communicated with the installation hole groove are arranged on the base. Each of the first air holes penetrates through the base and is communicated with the air pump through a pipeline. Each of the ventilation hole grooves penetrates through the base and extends to its side wall. A plurality of second air holes are arranged on the air passage of the fixture body. Each of the second air holes penetrates through the fixture body and is communicated with the installation hole groove.

5. The positioning jig for the curved surface structural member according to claim 4, characterized in that, The installation hole groove is a stepped structure with a larger upper part and a smaller lower part. Its larger end is adapted to the fixture body, and its depth is less than the height of the fixture body. Each of the first air holes and the second air holes falls inside the contour or the contour projection of the smaller end of the installation hole groove, and each of the ventilation hole grooves is arranged on the side wall of the smaller end of the installation hole groove.

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