Large engine cover assembling assistive device and assembling method

Abstract

The invention relates to the technical field of automobile assembly, in particular to a large engine cover assembly assistive device and an assembly method. Comprising a first auxiliary tool which is provided with an engine cover supporting part and a Y-direction positioning part for positioning the first auxiliary tool, and the Y-direction positioning part can be positioned on a vehicle body framework; the second auxiliary tool comprises two engine cover rear end X-direction limiting components which are both provided with front door profiling blocks capable of being attached to a front door, and the front door profiling blocks are provided with engine cover and front door gap blocks; the third auxiliary tool comprises two engine cover rear end Y-direction limiting components, each engine cover rear end Y-direction limiting component is provided with a side wall profiling block capable of being attached to a side wall, and an engine cover and side wall gap block is arranged on each side wall profiling block; by arranging the large engine cover assembly assistive device, the assembly sequence of the engine cover and the fender can be adjusted during assembly, the engine cover is assembled firstly, then the fender is assembled, it is guaranteed that the engine cover is in clearance fit with the front door outer plate and the side wall outer plate through the clearance blocks in the closed state, and after the appearance clearance requirement is met, the engine cover and fender connecting nut is tightened.

Description

Technical Field

[0001] The invention relates to the technical field of automobile assembly, in particular to a bonnet assembly aid and an assembly method. Background Art

[0002] As consumers' aesthetic and quality requirements improve, the styling of cars is becoming more and more diverse in order to impress consumers. In order to show the fullness of the front face and the characteristics of the ridges, more and more models are using the Daihatsu hood form to bring visual impact to consumers.

[0003] However, in order to ensure the styling style, the hood and surrounding parts have to be coordinated more. At the same time, consumers have higher and higher requirements for the refinement of the whole vehicle, and the appearance gap quality must be improved. Based on the above requirements, the manufacturing process of relatively small hoods is more difficult. According to the hood assembly method of previous models, the hood needs to be opened for assembly. After closing, it cannot meet the refined requirements of the hood, front door and side wall. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a large hood assembly aid and an assembly method. By setting a large hood assembly aid, the present invention can adjust the assembly order of the hood and the fender during assembly, assemble the hood first and then the fender, ensure that the hood is in a closed state, through the gap block, and the gap between the front door outer panel and the side panel is matched, and the hood and fender connection nuts are tightened after the appearance gap requirements are met. In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0005] In a first aspect, the present invention provides a bonnet assembly aid, comprising:

[0006] A first auxiliary tooling, comprising a cover supporting component and a Y-direction positioning component for positioning the first auxiliary tooling, wherein the Y-direction positioning component can be positioned on the vehicle body frame;

[0007] The second auxiliary tooling includes two rear end X-direction limiting components of the hair cover, each of which has a front door profiling block that can fit with the front door, and the front door profiling block is provided with a hair cover and front door gap block;

[0008] The third auxiliary tooling includes two Y-direction limiting components at the rear end of the hair cover, each of which has a side enclosure profiling block that can fit with the side enclosure, and the side enclosure profiling block is provided with a hair cover and side enclosure gap block.

[0009] As a further implementation, the hair cover supporting component and the Y-direction positioning component are jointly arranged on a bracket.

[0010] As a further implementation, the hair cover supporting component includes at least two supporting blocks arranged at one end of the bracket in the X direction, and at least two supporting blocks arranged at the other end in the X direction.

[0011] As a further implementation, the hair cover supporting component further includes a positioning pin disposed at one end of the bracket in the Y direction and used as a positioning pin for the hair cover at the front end in the Y direction.

[0012] As a further implementation, the Y-axis positioning component includes two positioning pins arranged on the bracket, and the two positioning pins can be positioned to the water flow channel of the vehicle body respectively.

[0013] As a further implementation, the Y-axis positioning component also includes two support blocks arranged on the bracket for supporting the wheel cover assembly, and two support blocks for supporting the fender bracket.

[0014] As a further implementation, the X-direction limiting component at the rear end of the hair cover and the Y-direction limiting component at the rear end of the hair cover are both provided with strong magnets.

[0015] As a further implementation, the thickness of the gap block between the hair cover and the front door is consistent with the gap between the hair cover and the front door, and the thickness of the gap block between the hair cover and the side enclosure is consistent with the gap between the hair cover and the side enclosure.

[0016] As a further implementation, two of the hair cover and front door gap blocks are provided on the front door profiling block.

[0017] In a second aspect, the present invention provides a method for assembling a large cover, which is assembled using the large cover assembly aid as described in the first aspect, and comprises the following steps:

[0018] Adjust the assembly sequence of the hood and fender. First, install the hood assembly aid at the corresponding position of the car body; then place the hood on the first auxiliary tooling in a closed state, push the hood backward, and make the rear end contact with the front door limit block in the X direction, and the hood contact with the side wall limit block in the Y direction. After the hood is adjusted into place and passes the inspection to meet the requirements, tighten the hood and hinge connection nuts from the bottom. After the assembly is completed, open the hood, remove the tooling aid, and then install the fender.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention sets a second auxiliary tool and a third auxiliary tool, and the clearance blocks between the hood and the front door, and the clearance blocks between the hood and the side panel can directly establish a positioning relationship between the hood and the front door, and between the hood and the side panel, so as to ensure that the hood is positioned to the front door in the X direction and to the side panel in the Y direction when the hood is closed. During assembly, the hood can be directly displayed in relation to the front door and the side panel. After manual inspection to meet the requirements, the hood and the hinge mounting nuts are tightened, so as to meet the requirements for the fine clearance between the hood and the front door, and between the hood and the side panel.

[0021] 2. The present invention adjusts the assembly sequence of the bonnet and the fender, so that the bonnet can be assembled first and then the fender, ensuring that the bonnet is gap-matched with the front door outer panel and the side panel outer panel through the gap block in the closed state, and the nuts connecting the bonnet and the fender are tightened after the appearance gap requirements are met.

[0022] 3. The front door profiling block and the side panel profiling block of the present invention are both provided with strong magnets, and are adsorbed on the vehicle body by the strong magnets, so that the requirement of rapid installation can be achieved.

[0023] 4. In the hair cover supporting component of the present invention, the third positioning pin can ensure the Y-direction positioning of the front end of the hair cover on the auxiliary tool, and the fifth support block, the sixth support block, the seventh support block and the eighth support block can ensure the Z-direction positioning of the hair cover on the first auxiliary tooling, thereby ensuring the Z-direction position of the hair cover in the closed design state.

[0024] 5. The present invention adopts the auxiliary tools in this embodiment, and the workers can directly check and then tighten the hood and the hood hinge nuts during the assembly operation, avoiding the workers from making secondary adjustments. It can ensure at one time that the gap between the hood and the front door and side panel meets the design requirements, directly improving the assembly efficiency and assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 It is a schematic diagram of positioning the first auxiliary tooling on the vehicle body in an embodiment of the present invention.

[0027] Figure 2 It is a schematic diagram of positioning the first auxiliary tooling cover in an embodiment of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure of the third auxiliary tooling in an embodiment of the present invention.

[0029] Figure 4 It is a schematic diagram of the structure of the second auxiliary tooling in an embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of the installation position of the second auxiliary tooling and the third auxiliary tooling on the vehicle body in an embodiment of the present invention.

[0031] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0032] Among them: 101, the first auxiliary tooling; 102, the first positioning pin; 103, the second positioning pin; 104, the first support block; 105, the second support block; 106, the third support block; 107, the fourth support block; 108, the third positioning pin; 109, the fifth support block; 110, the sixth support block; 111, the seventh support block; 112, the eighth support block; 113, the side panel imitation block; 114, the first strong magnet; 115, the second strong magnet; 116, the gap block between the hair cover and the side panel; 117, the front door imitation block, 118, the third strong magnet; 119, the fourth strong magnet; 120, the fifth strong magnet; 121, the gap block between the first hair cover and the front door; 122, the gap block between the second hair cover and the front door; 123, the front door outer panel; 124, the side panel outer panel. DETAILED DESCRIPTION

[0033] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0034] Embodiment 1

[0035] In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a hood assembly auxiliary tool includes a first auxiliary tool, a second auxiliary tool and a third auxiliary tool. When the hood is assembled, the three auxiliary tools are used together to meet the requirement of fine clearance between the hood and the side panel and the front door after assembly.

[0036] like Figure 3 As shown, the third auxiliary tooling includes two Y-direction limiting components at the rear end of the hair cover, and the Y-direction limiting components at the rear end of the hair cover have a side enclosure profiling block 113 that can fit with the side enclosure, and the side enclosure profiling block 113 is provided with a hair cover and a side enclosure gap block 116. The side enclosure profiling block 113 is also provided with a strong magnet, which is adsorbed on the left and right sides of the vehicle body through the strong magnet to achieve the requirement of rapid installation. In this embodiment, two strong magnets are provided on the side enclosure profiling block 113, specifically a first strong magnet 114 and a second strong magnet 115. It can be understood that the number of strong magnets is not limited to two in this embodiment, and can be selected according to actual conditions, as long as the side enclosure profiling block 113 can be installed firmly.

[0037] The side panel contour block 113 can ensure that the third auxiliary tooling fits the side panel. In addition, by setting the hair cover and side panel gap block 116, it can be ensured that after the large hair cover is assembled, the gap between the large hair cover and the side panel is consistent. Therefore, the thickness of the hair cover and side panel gap block 116 is consistent with the gap between the hair cover and the side panel.

[0038] It is not difficult to understand that the third auxiliary tooling includes two side panel contour blocks 113, which are respectively arranged on both sides of the vehicle body to jointly assist in positioning the gap between the rear end of the bonnet and the side panel, thereby ensuring the positioning of the rear end of the bonnet in the Y direction.

[0039] like Figure 4 As shown, the second auxiliary tooling includes two hair cover rear end X-direction limiting components, the hair cover rear end X-direction limiting components have a front door profiling block 117 that can fit with the front door, and a hair cover and front door gap block is provided at the front end of the front door profiling block 117.

[0040] Specifically, in this embodiment, two hair cover and front door gap blocks are provided on the front door profiling block 117, namely, a first hair cover and front door gap block 121 and a second hair cover and front door gap block 122. It can be understood that the number of the hair cover and front door gap blocks is not limited to two in this embodiment, and can be increased or decreased according to actual conditions, as long as the purpose of ensuring the gap can be achieved.

[0041] In this embodiment, a strong magnet is also provided on the front door profiling block 117, which is adsorbed on the vehicle body by the strong magnet to achieve the requirement of rapid installation. In this embodiment, three strong magnets are provided on the front door profiling block 117, specifically a third strong magnet 118, a fourth strong magnet 119 and a fifth strong magnet 120, and the three strong magnets are evenly distributed on the front door profiling block 117 to ensure that the front door profiling block 117 is stably adsorbed on the vehicle body on the left and right sides. It is understandable that the number of strong magnets on the front door profiling block 117 is not limited to three in this embodiment, and can be selected according to actual conditions, as long as the front door profiling block 117 can be installed firmly.

[0042] The front door profiling block 117 can ensure that the second auxiliary tooling fits the front door. In addition, the thickness of the gap block between the hair cover and the front door is consistent with the gap between the hair cover and the front door, which can ensure that the gap between the large hair cover and the front door is consistent after the large hair cover is assembled.

[0043] It is not difficult to understand that the second auxiliary tooling includes two front door profiling blocks 117, which are respectively arranged on both sides of the vehicle body to jointly assist in locating the gap between the rear end of the bonnet and the front door to ensure the positioning of the rear end of the bonnet in the X direction.

[0044] like Figure 5 As shown, the front door profiling block 117 is specifically installed on the front door outer panel 123 , and the side panel profiling block 113 is specifically installed on the side panel outer panel 124 .

[0045] In this embodiment, by setting the second auxiliary tooling and the third auxiliary tooling, the hood and front door gap block and the hood and side panel gap block 116 can directly position the hood and the front door, and the hood and the side panel, to ensure that the hood is positioned to the front door in the X direction and to the side panel in the Y direction when closed, and can directly display the status with the front door and the side panel during assembly. After the requirements are met through manual inspection, the hood and hinge mounting nuts are tightened to meet the refined requirements for the gaps between the hood and the front door, and between the hood and the side panel.

[0046] In addition, by adjusting the assembly sequence of the hood and the fender, the hood can be assembled first and then the fender to ensure that the hood is matched with the front door outer panel and the side panel outer panel through the gap block when in the closed state. After meeting the appearance gap requirements, tighten the connecting nuts between the hood and the fender.

[0047] By using the auxiliary tools in this embodiment, workers can directly inspect and then tighten the bonnet and the bonnet hinge nuts during the assembly operation, avoiding the workers from making secondary adjustments. It can ensure at one time that the gap between the bonnet and the front door and side panel meets the design requirements, directly improving the assembly efficiency and quality.

[0048] like Figure 1 and Figure 2 As shown, the first auxiliary tooling 101 has a hair cover supporting component and a Y-axis positioning component for positioning the first auxiliary tooling, and the Y-axis positioning component can be positioned on the vehicle body frame.

[0049] like Figure 1 As shown, the cover support component and the Y-axis positioning component are arranged on a bracket together. The bracket is a frame structure composed of steel pipes and other structures.

[0050] The Y-direction positioning component includes two positioning pins arranged on the bracket, which are arranged at the rear end of the bracket in the X direction. After the bracket is installed, the two positioning pins are located at one end of the bracket close to the windshield, and the two positioning pins can be positioned at the body water trough respectively. Specifically, the two positioning pins are respectively a first positioning pin 102 and a second positioning pin 103. The first positioning pin 102 is positioned at the body water trough, and the second positioning pin 103 is also positioned at the body water trough.

[0051] The first positioning pin 102 is a round pin, and the second positioning pin 103 is a diamond pin. The round pin can control the X / Y position of the first auxiliary tooling 101 on the vehicle body, and the diamond pin can control the X position of the first auxiliary tooling 101 on the vehicle body.

[0052] The Y-axis positioning component also includes two support blocks arranged on the bracket for freely supporting the wheel cover assembly, and two support blocks for freely supporting the fender bracket.

[0053] Specifically, the two support blocks supporting the wheel housing assembly are respectively a first support block 104 and a second support block 105, both of which are arranged at the rear end of the bracket in the X direction, the first support block 104 is arranged close to the first positioning pin 102, and the second support block 105 is arranged close to the second positioning pin 103. The first support block 104 is positioned to the left wheel housing assembly in the Z direction on the vehicle body, and the second support block 105 is positioned to the right wheel housing assembly in the Z direction on the vehicle.

[0054] The two support blocks used to support the fender bracket are the third support block 106 and the fourth support block 107, both of which are arranged at both ends of the bracket in the Y direction. The third support block 106 is positioned on the vehicle body to the left fender bracket, and the fourth support block 107 is positioned on the vehicle body to the right fender bracket.

[0055] like Figure 2 As shown, the hair cover support component includes at least two support blocks arranged at one end of the bracket in the X direction, and at least two support blocks at the other end in the X direction.

[0056] In this embodiment, there are two support blocks located at the rear end of the bracket in the X direction, namely the fifth support block 109 and the sixth support block 110; there are two support blocks located at the front end of the bracket in the X direction, namely the seventh support block 111 and the eighth support block 112. It is not difficult to understand that the number of support blocks is not limited to the number in this embodiment, and can be selected according to actual conditions.

[0057] It should be noted that, in the first auxiliary tooling, the installation positions and quantities of the support blocks and locating pins are not limited to the implementation methods in this embodiment, and any design method that can meet the positioning requirements and support requirements is permitted.

[0058] The hair cover support component also includes a third positioning pin 108 arranged at one end of the bracket in the Y direction for positioning the hair cover in the front end Y direction. The third positioning pin 108 can ensure the Y-direction positioning of the large hair cover on the first auxiliary tooling 101. The third positioning pin 108 is arranged on one side of the third support block 106.

[0059] In the hair cover support component, the third positioning pin 108 can ensure that the large hair cover is positioned in the Y direction on the auxiliary tool, and the fifth support block 109, the sixth support block 110, the seventh support block 111 and the eighth support block 112 can ensure that the large hair cover is positioned in the Z direction on the first auxiliary tooling, and ensure that the large hair cover is in the Z direction position in the closed design state. After the third positioning pin 108 positions the large hair cover, a 1mm gap is reserved between the positioning hole on the hair cover and the third positioning pin 108 on the tooling, ensuring that the hair cover can move within ±1mm.

[0060] Embodiment 2

[0061] This embodiment provides a method for assembling a large cover, which is assembled using the large cover assembly aid in the first embodiment, and includes the following steps:

[0062] Adjust the assembly sequence of the hood and the fender, first install the large hood assembly aid at the corresponding position of the vehicle body; specifically, first position the first auxiliary tooling of the large hood assembly aid on the vehicle body frame, fix the second auxiliary tooling to the gap between the front door and the hood through a strong magnet, and fix the third auxiliary tooling to the gap between the side panel and the hood through a strong magnet.

[0063] Then position the hood on the first auxiliary tooling. At this time, the hood is in a closed state. Push the hood backward within a distance of 1 mm until the hood cannot be pushed relative to the third positioning pin 108. Then the rear end of the hood can be made to contact the front door limit block in the X direction, and the hood can be made to contact the side panel limit block in the Y direction. After the hood is adjusted into place and passes the inspection to meet the requirements, tighten the nut connecting the hood and the hinge from the bottom. After the assembly is completed, open the hood, remove the tooling, only remove the second and third auxiliary tooling, and keep the first auxiliary tooling to the next station for fender positioning and assembly.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bonnet assembly aid, characterized in that: include: A first auxiliary tooling, comprising a cover supporting component and a Y-direction positioning component for positioning the first auxiliary tooling, wherein the Y-direction positioning component can be positioned on the vehicle body frame; The second auxiliary tooling includes two rear end X-direction limiting components of the hair cover, each of which has a front door profiling block that can fit with the front door, and the front door profiling block is provided with a hair cover and front door gap block; The third auxiliary tooling includes two Y-direction limiting components at the rear end of the hair cover, each of which has a side enclosure profiling block that can fit with the side enclosure, and the side enclosure profiling block is provided with a hair cover and side enclosure gap block.

2. The hood assembly aid according to claim 1, characterized in that: The hair cover supporting component and the Y-direction positioning component are jointly arranged on a bracket.

3. The hood assembly aid according to claim 2, characterized in that: The hair cover supporting component includes at least two supporting blocks arranged at one end of the bracket in the X direction, and at least two supporting blocks arranged at the other end in the X direction.

4. The hood assembly aid according to claim 3, characterized in that: The hair cover supporting component also includes a positioning pin arranged at one end of the bracket in the Y direction and used as a positioning pin for the hair cover in the front end Y direction.

5. The hood assembly aid according to claim 2, characterized in that: The Y-direction positioning component includes two positioning pins arranged on the bracket, and the two positioning pins can be positioned at the water flow channel of the vehicle body respectively.

6. The hood assembly aid according to claim 5, characterized in that: The Y-axis positioning component also includes two support blocks arranged on the bracket for supporting the wheel cover assembly, and two support blocks for supporting the fender bracket.

7. The hood assembly aid according to claim 1, characterized in that: The X-direction limiting component at the rear end of the hair cover and the Y-direction limiting component at the rear end of the hair cover are both provided with strong magnets.

8. The hood assembly aid according to claim 1, characterized in that: The thickness of the gap block between the hair cover and the front door is consistent with the gap between the hair cover and the front door, and the thickness of the gap block between the hair cover and the side enclosure is consistent with the gap between the hair cover and the side enclosure.

9. The hood assembly aid according to claim 1, characterized in that: The front door profiling block is provided with two hair covers and front door gap blocks.

10. A method for assembling a large cover, characterized in that: The assembly of the hood assembly aid according to any one of claims 1 to 9 comprises the following steps: Adjust the assembly sequence of the hood and fender. First, install the hood assembly aid at the corresponding position of the car body; then place the hood on the first auxiliary tooling in a closed state, push the hood backward, and make the rear end contact with the front door limit block in the X direction, and the hood contact with the side wall limit block in the Y direction. After the hood is adjusted into place and passes the inspection to meet the requirements, tighten the hood and hinge connection nuts from the bottom. After the assembly is completed, open the hood, remove the tooling aid, and then install the fender.

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