Automobile four-bar linkage cover hinge positioning tool and method

Abstract

The application discloses a kind of automobile four-bar linkage cover hinge positioning tool and method, it is related to the field of automobile parts assembly, including frame body, frame body installs hook pin, hook pin is used to cooperate side wall outer plate main positioning hole;Frame body is connected first Y direction positioning block and second Y direction positioning block, first Y direction positioning block is used to abut side wall outer plate door hinge installation surface, and second Y direction positioning block is used to abut car body front wheel cover reinforcement plate assembly Y direction surface;Frame body is installed first Z direction positioning block and second Z direction positioning block by guide rod sliding table, first Z direction positioning block installs round pin, and second Z direction positioning block installs diamond pin, and round pin is used for first Z direction positioning block and cover hinge abutment X direction, Y direction positioning, and diamond pin is used for second Z direction positioning block and cover hinge abutment Y direction positioning.The present application can effectively position cover hinge, reduce tolerance accumulation, guarantee the stability and qualified rate of cover peripheral gap difference, reduce the repair amount of cover related gap difference.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile parts assembly, in particular to a hinge positioning tool and method for a four-bar linkage engine cover. BACKGROUND

[0002] Engine cover hinges are divided into hinge type engine cover hinges and four-bar linkage type engine cover hinges according to structural forms. Four-bar linkage type hinges are increasingly applied to mid-to-high-end vehicles due to their flexible arrangement and the advantages that adjustable screws can adjust the surface difference of the rear part of the engine cover. However, the four-bar linkage hinge structure is complex, and its installation and positioning methods are diverse. How to effectively position the engine cover to ensure the clearance and surface difference of the related environmental parts, while reducing the clearance and surface difference repair amount of the related areas, has become the research direction of various vehicle manufacturers.

[0003] For example, CN104985559B discloses an assembly and positioning tool and method for a four-bar linkage engine cover hinge. Two sample frames are used to install the four-bar linkage hinge. The first sample frame is used to position and install the fixed page, and the second sample frame is used to install the engine cover. This scheme tightens the Z-direction surface screws, and the size chain is relatively long, resulting in a large tolerance and fluctuation range. Therefore, the use of Z-direction self-positioning four-bar linkage hinges has gradually decreased. CN210680990U discloses an engine cover hinge assembly and positioning structure, which includes a frame, an integral positioning structure installed at both ends of the frame, an artificial auxiliary structure installed on the upper side of the integral positioning structure, a hinge movable page positioning structure installed on the upper side of the integral positioning structure, and a guide pin and a pressing device installed at the end of the artificial auxiliary structure. Although this scheme improves the position accuracy of the vehicle body to some extent, the tool clamp structure is complex. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a four-bar linkage engine cover hinge positioning tool and method, which can effectively position the engine cover hinge, reduce tolerance accumulation, effectively ensure the stability and qualification rate of the clearance and surface difference around the engine cover, and reduce the clearance and surface difference repair amount related to the engine cover, thereby improving production quality and production efficiency.

[0005] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0006] In a first aspect, the embodiments of the present application provide a four-bar linkage engine cover hinge positioning tool, which comprises a frame body, a hook pin installed on the frame body, the hook pin being used to cooperate with the main positioning hole of the side wall outer plate, the frame body being connected with a first Y-direction positioning block and a second Y-direction positioning block, the first Y-direction positioning block being used to abut against the door hinge mounting surface of the side wall outer plate, and the second Y-direction positioning block being used to abut against the Y-direction surface of the front wheel cover reinforcement plate assembly.

[0007] The frame body is provided with a first Z-direction positioning block and a second Z-direction positioning block, the first Z-direction positioning block is provided with a round pin, and the second Z-direction positioning block is provided with a rhombic pin, the round pin is used for X-direction and Y-direction positioning when the first Z-direction positioning block abuts against the hinge of the fender, and the rhombic pin is used for Y-direction positioning when the second Z-direction positioning block abuts against the hinge of the fender.

[0008] As a further implementation manner, the frame body is further provided with a third Z-direction positioning block, which is used for abutting against the top of the wing sub plate mounting support to form Z-direction positioning.

[0009] As a further implementation manner, the first Y-direction positioning block, the second Y-direction positioning block, the first Z-direction positioning block and the second Z-direction positioning block are all provided with a strong magnet.

[0010] As a further implementation manner, the round pin, the rhombic pin and the corresponding strong magnet are located on the same side surface of the positioning block.

[0011] As a further implementation manner, the guide rod sliding table and the first Y-direction positioning block and the second Y-direction positioning block are located on the same side of the frame body, and the guide rod sliding table can move along the Y-direction relative to the frame body.

[0012] As a further implementation manner, the frame body is further provided with a limiting stop, which is used for limiting the sliding amount of the guide rod sliding table.

[0013] As a further implementation manner, the guide rod sliding table is provided with a support in the Z-direction, and the first Z-direction positioning block and the second Z-direction positioning block are fixed to the support respectively.

[0014] As a further implementation manner, the frame body is further provided with a handle.

[0015] In a second aspect, the embodiments of the present application further provide a positioning method for a four-link fender hinge of a vehicle, which adopts the positioning tool, assembles the fender hinge with the positioning tool first, and then assembles the positioning tool with the fender hinge with the vehicle body.

[0016] As a further implementation manner, the fender hinge is positioned on the positioning tool through the round pin, the rhombic pin, the first Z-direction positioning block and the second Z-direction positioning block first, and then the positioning tool with the fender hinge is positioned on the side wall of the vehicle body through the hook pin;

[0017] The third Z-direction positioning block of the positioning tool is positioned on the wing sub plate mounting support of the vehicle body, and the first Y-direction positioning block and the second Y-direction positioning block are respectively positioned on the reinforced plate assembly of the side wall of the vehicle body and the front wheel cover of the vehicle body; after positioning, the screws are tightened.

[0018] The present application has the following advantages:

[0019] (1) The frame body of the positioning tool of the present application is provided with a hook pin, two Z-direction positioning blocks with strong magnets, and two Y-direction positioning blocks, wherein the two Z-direction positioning blocks are respectively provided with a round pin and a rhombic pin, and are connected with the frame body through a guide rod sliding table, forming a Y-direction surface screw tightening and Z-direction adjustable structure positioning, which simplifies the tool structure, optimizes the positioning points, and reduces the size chain between the hinge of the hood and the fender; the hinge of the hood can be effectively positioned, the tolerance accumulation is reduced, and the stability and qualified rate of the peripheral gap difference of the hood are effectively ensured.

[0020] (2) The hinge of the hood is first positioned on the positioning tool through the round pin and the rhombic pin and the two Z-direction positioning blocks with strong magnets, then the positioning tool with the hinge is positioned on the side wall of the vehicle body through the hook pin on the positioning tool to position the X, Y and Z directions of the positioning tool body, the other Z-direction positioning block on the tool is positioned on the fender mounting bracket of the vehicle body, and the two Y-direction positioning blocks are respectively positioned on the reinforced plate assembly on the side wall of the vehicle body and the front wheel cover of the vehicle body; after positioning, the screw is tightened to maintain the positioning of the hinge of the hood on the vehicle body, and finally the position precision of the X, Y and Z directions of the hinge of the hood is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and explanations thereof serve to explain the present application, and do not constitute improper limitations on the present application.

[0022] Figure 1 is a positioning tool structure schematic diagram according to one or more embodiments of the present application;

[0023] Figure 2 is a positioning schematic diagram of the hinge of the hood on the positioning tool according to one or more embodiments of the present application;

[0024] Figure 3 is a positioning schematic diagram of the positioning tool on the vehicle body according to one or more embodiments of the present application.

[0025] Among them, 101 is a hook pin, 102 is a first Y-direction positioning block, 103 is a handle, 104 is a guide rod sliding table, 105 is a first Z-direction positioning block, 106 is a round pin, 107 is a second Z-direction positioning block, 108 is a rhombic pin, 109 is a limiting stop, 110 is a third Z-direction positioning block, 111 is a second Y-direction positioning block, 112 is a frame body, and 113 is a bracket;

[0026] 201 is a first hood mounting hole, 202 is a second hood mounting hole, 203 is a first vehicle body mounting hole, 204 is a second vehicle body mounting hole, and 205 is an adjusting screw;

[0027] 301 main positioning hole, 302 door hinge mounting surface, 303 fender mounting support, 304 Y direction surface. DETAILED DESCRIPTION

[0028] Embodiment one:

[0029] In order to reduce the size of the chain, solve the gap surface difference compliance and stability problem of the cover and the fender, the embodiment provides an automobile four-bar cover hinge positioning tool, which ensures the Z direction relative height of the cover hinge relative to the fender support, and ensures the X direction relative position of the cover hinge relative to the fender.

[0030] Next, the positioning tool will be described in detail in combination with the drawings.

[0031] The positioning tool of the embodiment includes a frame body 112, so that Figure 1 As shown in the view direction, the lower side of the frame body 112 is provided with a hook pin 101, and the positioning tool is hooked to the side wall outer plate by pushing the pressure head of the hook pin 101, which is used for positioning the positioning tool in X, Y and Z directions on the side wall.

[0032] It should be noted that the hook pin 101 is a standard part, and its structure will not be described here; the frame body 112 can be set according to the actual installation requirements. Moreover, the coordinate direction in the embodiment is according to the automobile coordinate system direction.

[0033] As shown in the view direction, Figure 1 The frame body 112 is fixed with a first Y direction positioning block 102 and a second Y direction positioning block 111 on one side, and the first Y direction positioning block 102 and the second Y direction positioning block 111 are located on the upper side of the hook pin 101; the first Y direction positioning block 102 and the second Y direction positioning block 111 are both provided with a strong magnet, wherein the first Y direction positioning block 102 is used for positioning the positioning tool in Y direction on the side wall, and the second Y direction positioning block 111 is used for positioning the positioning tool in Y direction on the vehicle body. The strong magnet is fixed on the positioning end of the positioning block, that is, the cooperation end with the side wall (vehicle body), so as to be adsorbed and fixed with the side wall (vehicle body).

[0034] The frame body 112 is also provided with a guide rod sliding table 104, and the guide rod sliding table 104 is located on the same side of the frame body 112 as the first Y direction positioning block 102 and the second Y direction positioning block 111. When the cover hinge screw is tightened, the guide rod sliding table 104 is used for Y direction sliding cooperation of the cover hinge. Since the guide rod sliding table 104 can move in Y direction, in order to limit it, the frame body 112 is also provided with a limiting stop 109 to limit the sliding amount of the guide rod sliding table 104.

[0035] In the embodiment, the guide rod sliding table 104 is a double guide rod sliding table 104.

[0036] A bracket 113 is mounted on the upper side of the guide rod slide 104. The bracket 113 is installed along the Z-axis. A first Z-axis positioning block 105 and a second Z-axis positioning block 107 are mounted on the top of the bracket 113. The first Z-axis positioning block 105 and the second Z-axis positioning block 107 are used for Z-axis positioning of the cap hinge. Both the first Z-axis positioning block 105 and the second Z-axis positioning block 107 are equipped with strong magnets. Since they are positioned in the Z-axis direction, the strong magnets are fixed to their top surfaces so that they can be attracted and fixed to the cap hinge.

[0037] In this embodiment, the bracket 113 has a T-shaped structure, the first Z-axis positioning block 105 is fixed to one end of the bracket 113, and the second Z-axis positioning block 107 is fixed to the other end of the bracket 113.

[0038] like Figure 1 As shown, the top of the first Z-axis positioning block 105 is connected to a round pin 106, and the top of the second Z-axis positioning block 107 is connected to a rhombus 108. The round pin 106 is used to position the X and Y directions of the hair cap hinge, and the rhombus 108 is used to position the Y direction of the hair cap hinge.

[0039] The frame body 112 is also equipped with a third Z-axis positioning block 110, which is used for Z-axis positioning of the positioning fixture on the vehicle body, such as... Figure 3 As shown, the third Z-axis positioning block 110 abuts against the fender mounting bracket 303. To meet this requirement, the third Z-axis positioning block 110 is fixed to the L-shaped frame extending from the upper side of the frame body 112.

[0040] The frame body 112 is equipped with a handle 103, which is located on the opposite side of the first Y-direction positioning block 102 and the second Y-direction positioning block 111, making it easy to pick up the positioning fixture.

[0041] When using it, first assemble the hood hinge with the positioning fixture, and then assemble the assembled hood hinge and positioning fixture with the car body.

[0042] For ease of description, the two mounting holes for fixing the hinge to the hood are defined as the first hood mounting hole 201 and the second hood mounting hole 202, respectively, and the two mounting holes for fixing the hinge to the vehicle body are defined as the first body mounting hole 203 and the second body mounting hole 204, respectively.

[0043] like Figure 2 As shown, the round pin 106 engages with the first hair cap mounting hole 201, while the first Z-axis positioning block 105 abuts against the hair cap hinge and is fixed by a strong magnet. The round pin 106 is used to position the hair cap hinge in the X and Y directions, and the first Z-axis positioning block 105 is used for Z-axis positioning. The rhombus 108 engages with the second hair cap mounting hole 202, while the second Z-axis positioning block 107 abuts against the hair cap hinge and is fixed by a strong magnet. The rhombus 108 is used for Y-axis positioning of the hair cap hinge, and the second Z-axis positioning block 107 is used for Z-axis positioning of the hair cap hinge.

[0044] The first body mounting hole 203 is used for screw fixing of the hinge on the vehicle body, the second body mounting hole 204 is used for screw fixing of the hinge on the vehicle body, and the adjusting screw 205 on the hinge is used for Z-direction height adjustment of the hinge.

[0045] As shown in Figure 3 The side wall outer plate is provided with a main positioning hole 301, a hinge mounting surface, and a fender mounting support 303. The hook pin 101 cooperates with the main positioning hole 301 to position the X-direction, Y-direction and Z-direction of the tooling. The first Y-direction positioning block 102 is attached to the hinge mounting surface 302 of the side wall outer plate door to position the Y-direction of the tooling. The third Z-direction positioning block 110 abuts the top of the fender mounting support 303 to position the Z-direction of the tooling. The second Y-direction positioning block 111 is attached to the Y-direction surface 304 of the front wheel cover upper reinforcement plate assembly of the vehicle body and is tightly attracted by a strong magnet to position the Y-direction of the tooling.

[0046] After the hinge is positioned on the positioning tooling, the positioning tooling is positioned on the vehicle body, the first body mounting hole 203 and the second body mounting hole 204 are tightened, and the hinge is effectively fixed on the vehicle body. The hinge is lifted, the tooling is removed from the vehicle body, and the positioning tooling is placed in a designated position, waiting for the next assembly.

[0047] In this embodiment, the Y-direction surface screw is tightened, and the four-bar linkage structure positioning is adjustable in the Z-direction, which simplifies the tooling structure, optimizes the positioning points, and reduces the size chain ring between the hood hinge and the fender.

[0048] This embodiment realizes effective positioning of the relative positions of the Z-direction and the X-direction of the hinge cover end seat plate through the positioning tooling, can reduce the size chain ring, thereby ensuring the stability and qualified rate of the peripheral gap surface difference of the cover, reducing the amount of repair of the related gap surface difference of the cover, and improving the production quality and production efficiency.

[0049] Embodiment two:

[0050] The embodiment provides a four-bar linkage hinge positioning method for a vehicle cover, which adopts the positioning tooling described in embodiment one,

[0051] First, the hinge cover is positioned on the positioning tooling through the round pin 106, the diamond pin 108, and the first Z-direction positioning block 105 and the second Z-direction positioning block 107 with a strong magnet. Then, the positioning tooling with the hinge cover is positioned on the side wall of the vehicle body through the hook pin 101 on the positioning tooling to position the X, Y and Z directions of the positioning tooling body.

[0052] The third Z-direction positioning block 110 of the positioning tool is positioned on the body wing panel mounting support 303, and the first Y-direction positioning block 102 and the second Y-direction positioning block 111 are respectively positioned on the body side wall and the reinforced plate assembly of the body front wheel cover. After positioning, the positioning of the bonnet hinge on the body is kept by screw tightening, and finally the position accuracy of the X, Y and Z directions of the bonnet hinge is effectively ensured.

[0053] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning fixture for a four-link hood hinge in automobiles, characterized in that, The frame body includes a mounting pin for engaging with the main positioning hole of the side panel; the frame body is connected to a first Y-axis positioning block and a second Y-axis positioning block, the first Y-axis positioning block abutting against the door hinge mounting surface of the side panel, and the second Y-axis positioning block abutting against the Y-axis surface of the front wheel arch reinforcement assembly. The frame body is equipped with a first Z-axis positioning block and a second Z-axis positioning block via a guide rod slide. The first Z-axis positioning block is equipped with a round pin, and the second Z-axis positioning block is equipped with a diamond pin. The round pin is used for X-axis and Y-axis positioning when the first Z-axis positioning block abuts against the cap hinge, and the diamond pin is used for Y-axis positioning when the second Z-axis positioning block abuts against the cap hinge. The frame body is also equipped with a third Z-axis positioning block, which is used to abut against the top of the fender mounting bracket to form Z-axis positioning.

2. The automotive four-link hood hinge positioning fixture according to claim 1, characterized in that, The first Y-axis positioning block, the second Y-axis positioning block, the first Z-axis positioning block, and the second Z-axis positioning block are all equipped with powerful magnets.

3. The automotive four-link hood hinge positioning fixture according to claim 2, characterized in that, The round pin, the diamond pin, and the corresponding powerful magnet are located on the same side surface of the positioning block.

4. The automotive four-link hood hinge positioning fixture according to claim 1, characterized in that, The guide rod slide is located on the same side of the frame body as the first Y-axis positioning block and the second Y-axis positioning block, and the guide rod slide can move relative to the frame body along the Y-axis.

5. A positioning fixture for a four-link hood hinge of an automobile according to claim 1 or 4, characterized in that, The frame body is also provided with a limiting stop, which is used to limit the sliding amount of the guide rod slide.

6. A positioning fixture for a four-link hood hinge of an automobile according to claim 1 or 4, characterized in that, The guide rod slide is equipped with a bracket in the Z direction, and the first Z-direction positioning block and the second Z-direction positioning block are fixed to the bracket respectively.

7. A positioning fixture for a four-link hood hinge of an automobile according to claim 1, characterized in that, The frame body is also equipped with a handle.

8. A method for positioning a four-link hood hinge in an automobile, characterized in that, Using the positioning fixture as described in any one of claims 1-7, the hood hinge is first assembled with the positioning fixture, and then the positioning fixture with the hood hinge is assembled with the car body.

9. A method for positioning a four-link hood hinge in an automobile according to claim 8, characterized in that, First, the hood hinge is positioned on the positioning fixture using round pins, diamond pins, and the first Z-axis positioning block and the second Z-axis positioning block. Then, the positioning fixture with the hood hinge is positioned on the side panel of the vehicle body using hook pins. Position the third Z-axis positioning block of the positioning fixture on the fender mounting bracket of the vehicle body, and position the first Y-axis positioning block and the second Y-axis positioning block on the reinforcing plate assembly of the side panel and the front wheel arch of the vehicle body, respectively; after positioning, tighten with screws.

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