A positioning tool for a car door hinge

Abstract

The utility model discloses a positioning tool for car door hinge, include: base plate, recessed setting with the recess of hinge pivot adaptation in the base plate middle, radial telescopic tensioning piece, the opposite side of base plate still is provided with the radial telescopic tensioning piece with the installation hole opposite side of hinge adaptation respectively, first fixed part, the coaxial setting with first fixed part adaptation's first screw groove is respectively arranged with every radial telescopic tensioning piece at the base plate. The present application has overcome the part car door hinge because its function demand, design as positive and negative two surface structure different, its installation hole inner diameter also exists the tolerance, when the mechanical processing or three -coordinate detection to this kind of hinge, need the special positioning tool to fix it accurately, at present, cannot use the same general fixture or simple tooling to the positive and negative surface of this kind of hinge positioning tool. To provide a kind of positioning tool for car door hinge of the positive and negative surface of the above-mentioned hinge can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of automotive door hinge processing, specifically to a positioning fixture for automotive door hinges. Background Technology

[0002] The car door hinge is a key component connecting the car door to the car body. Its manufacturing and assembly precision directly affects the smoothness of the door opening and closing and its sealing performance.

[0003] Due to functional requirements, some car door hinges are designed with different structures on the front and back sides, and the inner diameter of their mounting holes also has tolerances. When machining or measuring these hinges with a coordinate measuring machine, special positioning fixtures are required to accurately fix them. Currently, it is not possible to use the same general-purpose fixture or simple tooling to position the front and back sides of this type of hinge.

[0004] Therefore, providing a positioning fixture for automotive door hinges that can fix the front and back sides of the aforementioned hinge is a problem that this utility model urgently needs to solve. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to overcome the fact that some car door hinges, due to functional requirements, are designed with different structures on their front and back sides, and their mounting hole inner diameters also have tolerances. When machining or performing coordinate measuring machine (CMM) inspection on these hinges, a dedicated positioning fixture is required to accurately fix them. Currently, it is impossible to use a single general-purpose fixture or simple tooling to position the front and back sides of such hinges. Therefore, this utility model provides a positioning fixture for automotive door hinges that can fix the front and back sides of the aforementioned hinges.

[0006] To achieve the above objectives, this utility model provides a positioning fixture for automotive door hinges, comprising: a base plate, wherein the base plate has a recessed groove in the middle that matches the hinge pivot; radial telescopic tensioning members, wherein the base plate also has radial telescopic tensioning members on opposite sides that match the mounting holes on opposite sides of the hinge; a first fixing member, wherein the base plate has a first threaded groove coaxially provided at each radial telescopic tensioning member that matches the first fixing member, the first fixing member being able to drive the radial telescopic tensioning members to move radially around their periphery to tension the mounting holes on opposite sides of the hinge; and fixing components, wherein the base plate also has a plurality of fixing components on its periphery that can fix the four corners of the hinge.

[0007] Preferably, the radial telescopic tensioning member has a hexagonal overall vertical cross-section, and a tensioning block is arranged around its central periphery, with elastic sheets arranged on opposite sides of the tensioning block.

[0008] Preferably, the tensioning block has several anti-slip grooves spaced apart on its periphery.

[0009] Preferably, the elastic sheet and the tensioning block are evenly surrounded by a number of gaps.

[0010] Preferably, the fixing component includes: a movable rod, which is reciprocally mounted on the base plate toward one corner of the hinge; a clamping block, one end of which is mounted on the movable rod and has a groove recessed on its surface; and a second fixing member, which is adapted to the groove to fix the clamping block at one corner of the hinge.

[0011] Preferably, the movable rod body is provided with an adjusting nut, and one end of the clamping block is sleeved on the upper end of the movable rod.

[0012] Preferably, the movable rod body is coaxially provided with a limit slider, and the base plate is provided with a limit groove corresponding to each limit slider.

[0013] According to the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This application arranges the mounting holes of the hinge correspondingly on each radial telescopic tensioning member, and then screws the first fixing member to drive each elastic piece to move downward and compress, thereby tensioning the mounting holes of the hinge through the tensioning blocks on its periphery, thus achieving initial fixation, thereby avoiding positioning deviation caused by the tolerance of the mounting holes. Then, by adjusting the adjusting nut, the lower surface of the clamping block is made flush with the hinge surface. Then, the moving rod is moved to move the clamping block above one corner of the hinge, and then the second fixing member is tightened to fix the four corners of the hinge. At this time, the fixation of one side of the hinge is completed. When it is necessary to fix the other side, simply flip the hinge over and place its pivot in the groove, and repeat the above operation. When removing, by loosening each first and second fixing member, and then moving the moving rod, the clamping block is moved to one side of the hinge, so that the user can remove the hinge.

[0014] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This utility model provides a preferred embodiment of a three-dimensional positioning fixture for automotive door hinges. Figure 1 ; Figure 2 This utility model provides a preferred embodiment of a three-dimensional positioning fixture for automotive door hinges. Figure 2 ; Figure 3 This is a planar cross-sectional view of a positioning fixture for automobile door hinges provided in a preferred embodiment of the present invention. Figure 1 ; Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0016] Figure 5 This is a partial three-dimensional representation of a positioning fixture for automotive door hinges provided in a preferred embodiment of the present invention. Figure 1 ; Figure 6 This is a planar cross-sectional view of a positioning fixture for automobile door hinges provided in a preferred embodiment of the present invention. Figure 2 ; Figure 7 This is a partial three-dimensional representation of a positioning fixture for automotive door hinges provided in a preferred embodiment of the present invention. Figure 2 .

[0017] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Groove; 12. First threaded groove; 13. Limiting slide groove; 2. Radial telescopic tensioning element; 21. Elastic sheet; 22. Tensioning block; 23. Anti-slip texture; 3. First fixing element; 4. Fixing assembly; 41. Moving rod; 411. Limiting slider; 42. Pressing block; 421. Strip groove; 43. Second fixing element; 44. Adjusting nut. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. These are merely for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] Reference Figure 1 and Figure 2 A positioning fixture for an automotive door hinge includes: a base plate 1, wherein the base plate 1 has a recessed groove 11 adapted to the hinge pivot; radial telescopic tensioning members 2, wherein the base plate 1 also has radial telescopic tensioning members 2 on opposite sides, adapted to the mounting holes on opposite sides of the hinge; a first fixing member 3, wherein the base plate 1 has a first threaded groove 12 coaxially provided at each radial telescopic tensioning member 2, adapted to the first fixing member 3, the first fixing member 3 being able to drive the radial telescopic tensioning member 2 to move radially around its periphery to tension the mounting holes on opposite sides of the hinge; and a fixing assembly 4, wherein the base plate 1 also has a plurality of fixing assemblies 4 on its periphery, which can fix the four corners of the hinge.

[0023] like Figure 1 as well as Figure 2This positioning fixture can fix the front and back of the hinge. Because the hinge's pivot is protruding, a groove 11 is provided for its accommodation. During installation, the mounting holes around the hinge are first fitted onto the corresponding radial telescopic tensioning members 2. Then, the first fixing member 3 is turned to drive the radial telescopic tensioning members 2 to move radially around the hinge to tension the mounting holes on opposite sides. This avoids positioning deviations caused by mounting hole tolerances, ensures uniform clamping force and high positioning accuracy. Finally, the four corners of the hinge are further fixed by the fixing component 4, thus completing the fixing of the entire hinge.

[0024] Reference Figure 3 and Figure 4 The radial telescopic tensioning member 2 has a hexagonal overall vertical cross section, and a tensioning block 22 is arranged around its central periphery. Elastic sheets 21 are respectively arranged on the opposite sides of the tensioning block 22.

[0025] This application can compress the entire radial telescopic tensioning member 2 by tightening the first fixing member 3 through the elastic sheet 21, thereby forcing the tensioning block 22 to move radially and thus tension it from inside the hinge mounting hole.

[0026] Reference Figure 5 The tensioning block 22 has several anti-slip grooves 23 spaced around its perimeter.

[0027] This application further secures the hinge mounting hole by providing anti-slip texture 23 to prevent it from shifting.

[0028] Reference Figure 5 The elastic sheet 21 and the tensioning block 22 are evenly surrounded by several gaps.

[0029] The overall ring structure of this application has a high rigidity, and a large force is required to make it radially expand. This makes it very difficult to tighten the first fixing member 3, and it is easy to damage the elastic plate 21 and the tensioning block 22. The gap divides the ring structure into multiple independent "petal"-shaped cantilevers. Each "petal" can independently and flexibly undergo radial displacement under the push of the first fixing member 3, with very little interference between them. This ensures that the tension force can be distributed very evenly in the entire circumference of the inner wall of the hinge mounting hole.

[0030] Reference Figure 6 and Figure 7 The fixing component 4 includes: a movable rod 41, which is reciprocally mounted on the base plate 1 toward one corner of the hinge; a clamping block 42, one end of which is mounted on the movable rod 41 and has a groove 421 recessed on its surface; and a second fixing member 43, which is adapted to the groove 421 to fix the clamping block 42 at one corner of the hinge.

[0031] When the hinge is fixed, the moving rod 41 is moved to move the clamping block 42 to above one corner of the hinge, and then the second fixing member 43 is used to press the clamping block 42 at one corner of the hinge; when removing the hinge, the second fixing member 43 is loosened, and then the moving rod 41 is moved to move the clamping block 42 to one side of the hinge so that the user can remove the hinge.

[0032] Reference Figure 6 and Figure 7 The moving rod 41 is equipped with an adjusting nut 44, and one end of the clamping block 42 is sleeved on the upper end of the moving rod 41.

[0033] By adjusting the adjusting nut 44, this application can correspondingly adjust the height of the clamping block 42 away from the hinge end, so that it is in a horizontal state.

[0034] Reference Figure 6 and Figure 7 The movable rod 41 is coaxially provided with a limit slider 411, and the base plate 1 is provided with a limit groove 13 corresponding to each limit slider 411.

[0035] The movable rod 41 of this application is stably and reciprocally mounted in the limiting slide groove 13 via the limiting slider 411 toward one corner of the hinge, ensuring that it will not deviate during movement.

[0036] In use, the device provided by this utility model involves correspondingly fitting each mounting hole of the hinge onto each radial telescopic tensioning member 2, then tightening the first fixing member 3 to move each elastic piece 21 downwards and compress it, thereby tensioning each mounting hole of the hinge through the tensioning block 22 on its periphery, achieving initial fixation and avoiding positioning deviation caused by the tolerance of the mounting holes. Then, by adjusting the adjusting nut 44, the lower surface of the pressing block 42 is made flush with the hinge surface. Then, the moving rod 41 is moved to move the pressing block 42 above one corner of the hinge, and then the second fixing member 43 is tightened to fix the four corners of the hinge. At this point, the fixation of one side of the hinge is completed. When it is necessary to fix the other side, simply flip the hinge over and place its pivot in the groove 11, and repeat the above operation. When removing, loosen each first fixing member 3 and the second fixing member 43, and then move the moving rod 41 to move the pressing block 42 to one side of the hinge so that the user can remove the hinge.

[0037] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0038] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0039] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A positioning fixture for automobile door hinges, characterized in that, include: A base plate (1) is provided with a recessed groove (11) in the middle that is adapted to the hinge pivot; a radial telescopic tensioning member (2) is provided on the opposite sides of the base plate (1) and is adapted to the mounting holes on the opposite sides of the hinge; a first fixing member (3) is provided on the base plate (1) at each radial telescopic tensioning member (2) and is adapted to the first fixing member (3) and is able to drive the radial telescopic tensioning member (2) to move radially around the periphery to tension the mounting holes on the opposite sides of the hinge; a fixing assembly (4) is provided on the periphery of the base plate (1) and is a number of fixing assemblies (4) that can fix the four corners of the hinge.

2. The positioning fixture for an automobile door hinge according to claim 1, characterized in that, The radial telescopic tensioning member (2) has a hexagonal overall vertical cross section, and a tensioning block (22) is arranged around its central periphery. Elastic sheets (21) are arranged on opposite sides of the tensioning block (22).

3. A positioning fixture for an automobile door hinge according to claim 2, characterized in that, The tensioning block (22) has several anti-slip grooves (23) spaced around its periphery.

4. A positioning fixture for an automobile door hinge according to claim 2, characterized in that, The elastic sheet (21) and the tensioning block (22) are evenly surrounded by several gaps.

5. A positioning fixture for an automobile door hinge according to claim 1, characterized in that, The fixing component (4) includes: a movable rod (41) which is reciprocally mounted on the base plate (1) toward one corner of the hinge; a clamping block (42) which is mounted on the movable rod (41) at one end and has a groove (421) recessed on its surface; and a second fixing member (43) which is adapted to the groove (421) to fix the clamping block (42) at one corner of the hinge.

6. A positioning fixture for an automobile door hinge according to claim 5, characterized in that, The moving rod (41) is equipped with an adjusting nut (44), and one end of the clamping block (42) is sleeved on the upper end of the moving rod (41).

7. A positioning fixture for an automobile door hinge according to claim 6, characterized in that, The moving rod (41) is coaxially provided with a limit slider (411), and the base plate (1) is provided with a limit groove (13) corresponding to each limit slider (411).

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