Assembly fixture

Abstract

This application relates to the field of automotive assembly technology, specifically providing an assembly fixture for assembling a hood to a vehicle body to improve the assembly accuracy and efficiency of the hood. The hood is connected to the vehicle body via a hinge. The assembly fixture includes: a frame, comprising a frame body and two mounting members, the two mounting members being connected to opposite ends of the frame body respectively; and two assembly mechanisms, each corresponding to one of the two mounting members. Each assembly mechanism includes a positioning component, a first sliding member, a second sliding member, a hood support member, and a hinge support member. The positioning component is connected to the frame body and configured to be positioned on the vehicle body. The first sliding member is slidably connected to the mounting member, and the second sliding member is slidably connected to the first sliding member. The hood support member is connected to the second sliding member and configured to position the hood. The hinge support member is connected to the mounting member and configured to support the hinge. The first and second sliding members cooperate to move the hood relative to the hinge, thereby adjusting the position of the hood relative to the vehicle body.

Description

Technical Field

[0001] This application relates to the field of automobile manufacturing technology, specifically to an assembly tooling. Background Technology

[0002] In the automotive body manufacturing industry, the engine hood (hereinafter referred to as "hood"), as a key external covering component, needs to form a high-precision matching relationship with peripheral functional components on the vehicle body, such as fenders, front doors, and headlights, and must meet the requirements of uniform gap and consistent surface differences. The hood is usually connected to the vehicle body by a multi-degree-of-freedom hinge, but due to factors such as the accumulation of assembly tolerances at the hinge-to-vehicle connection points, springback deformation of stamped parts, and deviations in welded assemblies, the actual assembly process requires adjusting the spatial position of the hood to achieve a clearance fit between the hood and the functional components.

[0003] Most current hood assembly methods utilize fixed tooling. The technical implementation involves: fixing the tooling to reference holes on the vehicle body using locating pins, creating rigid positioning within the vehicle's coordinate system; the hood is then attached to the tooling's preset position using a contour bracket or vacuum suction cup, relying on the tooling's precision to ensure the theoretical relative position of the hood and the vehicle body; after assembly, the operator removes the tooling and repeatedly adjusts the connecting bolts between the hood and hinges using visual comparison or simple measuring tools to compensate for actual assembly deviations, ultimately achieving the required clearance and surface finish. However, the aforementioned tooling suffers from insufficient assembly flexibility, low efficiency of manual adjustments, and limited matching accuracy. Utility Model Content

[0004] In view of the above, it is necessary to provide an assembly fixture to improve the assembly accuracy and efficiency of the cover.

[0005] This application provides an assembly fixture for assembling a hood to a vehicle body, wherein the hood is connected to the vehicle body via a hinge, and the assembly fixture includes:

[0006] The frame includes a housing and two mounting components, the two mounting components being connected to opposite ends of the housing, respectively.

[0007] Two assembly mechanisms correspond one-to-one with the two mounting components. Each assembly mechanism includes a positioning component, a first sliding component, a second sliding component, a hood support component, and a hinge support component. The positioning component is connected to the frame and configured to be positioned on the vehicle body. The first sliding component is slidably connected to the mounting component, and the second sliding component is slidably connected to the first sliding component. The hood support component is connected to the second sliding component and configured to position the hood. The hinge support component is connected to the mounting component and configured to support the hinge.

[0008] Wherein, the sliding direction of the first sliding member is perpendicular to the sliding direction of the second sliding member. When the positioning component is positioned to the vehicle body, the hood support member positions the hood, and the hinge support member supports the hinge, the first sliding member and the second sliding member cooperate to drive the hood to move relative to the hinge, so as to adjust the position of the hood relative to the vehicle body.

[0009] In some embodiments, functional components are mounted on the vehicle body, and the positioning component includes:

[0010] A first positioning element is connected to the frame to position itself to the vehicle body;

[0011] The second positioning element is connected to the frame to position the functional element, and the mounting element is located between the first positioning element and the second positioning element.

[0012] In some embodiments, the mounting member has a mounting clip body, and the first sliding member includes:

[0013] First sliding body;

[0014] The first protrusion connects to the first slider and engages with the mounting clip body in a sliding engagement.

[0015] The linkage body is connected to the side of the first sliding body opposite to the first protrusion and is slidably connected to the second sliding member.

[0016] In some embodiments, the mounting member has a plurality of scales, the plurality of scales being arranged along the sliding direction of the first sliding body, and each assembly mechanism further includes:

[0017] An indicator is connected to the first slider and corresponds to a plurality of the scales in the sliding direction of the second slider. The indicator is configured to indicate the movement distance of the first slider relative to the mounting member.

[0018] In some embodiments, each of the assembly mechanisms further includes:

[0019] A stop member, connected to the mounting member and located in the sliding direction of the first sliding body, is used to stop the first sliding body and limit the range of motion of the first sliding body relative to the mounting member.

[0020] In some embodiments, the linkage includes an assembly part and a linkage part, the assembly part being connected to the first sliding body, and the linkage part being connected to the assembly part; the second sliding member includes:

[0021] The second protrusion is slidably engaged with the linkage part.

[0022] The second sliding body has one end connected to the second protrusion;

[0023] The detachable body is detachably connected to the end of the second sliding body away from the second protrusion, and the cover support is connected to the detachable body.

[0024] In some embodiments, each of the assembly mechanisms further includes:

[0025] Baffle, connected to the first sliding body;

[0026] A rotating component that is rotatably connected to the second sliding body and can be inserted into the mounting component.

[0027] In some embodiments, the hinge support includes:

[0028] The connector is connected to the mounting component;

[0029] A support body, one end of which is used to support the hinge;

[0030] An adjusting body is inserted through the connecting body and threaded to the other end of the support body to adjust the position of the support body relative to the connecting body.

[0031] In some embodiments, each of the assembly mechanisms further includes:

[0032] The closing and tightening assembly includes a fixing member and a transmission member, the fixing member being connected to the first sliding member, and the transmission member being connected to the fixing member and configured to fix the hinge.

[0033] In some embodiments, the functional components include a fender and a door, and the assembly fixture further includes a clamping mechanism, the clamping mechanism comprising:

[0034] Base;

[0035] A guide member, connected to the base, is used to conform to the surface of the vehicle door;

[0036] A magnetic connector, connected to the base, is used to attach the vehicle door.

[0037] An inlet piece, connected to the base, is used to fit against the side of the door facing the fender to abut against the hood.

[0038] In the aforementioned assembly fixture, the hood can be supported by the hood support component, positioned with the vehicle body by the positioning component and hinge support component, and the hood support component can be moved relative to the vehicle body by the first and second sliding components. This allows the hood to be self-adapted to the actual dimensional deviations of the vehicle body during the assembly process, thereby improving the assembly accuracy and efficiency of the hood. Attached Figure Description

[0039] Figure 1This is an assembly diagram of the vehicle body, hood, door, fender, and clamping mechanism applicable to embodiments of this application.

[0040] Figure 2 This is a schematic diagram of the assembly tooling in an embodiment of this application.

[0041] Figure 3 for Figure 1 The diagram shows a structural schematic of part of the frame and positioning components in the assembly fixture.

[0042] Figure 4 for Figure 1 The diagram shows the structure of part of the frame and part of the assembly mechanism in the assembly fixture.

[0043] Figure 5 for Figure 4 The diagram shows a partial structural schematic of the frame and assembly mechanism.

[0044] Figure 6 for Figure 1 The diagram shows the structural schematic of the clamping mechanism in the assembly fixture.

[0045] Key component symbols: Assembly fixture 100, frame 110, frame 111, mounting part 112, mounting clip 112a, scale 112b, assembly mechanism 120, positioning assembly 121, first positioning part 1211, second positioning part 1212, first sliding part 122, first sliding body 1221, first protrusion 1222, linkage 1223, assembly part 1223a, linkage part 1223b, second sliding part 123, second protrusion 1231, second sliding body 1232, disassembly Components 1233, hood support 124, hinge support 125, connector 1251, support 1252, adjuster 1253, indicator 126, stop 127, baffle 128, rotating component 129, closing and tightening assembly 1291, fixing component 1291a, transmission component 1291b, holding mechanism 130, base 131, guide 132, magnetic suction component 133, guide component 134, body 200, hood 300, door 400, fender 500, clearance 600. Detailed Implementation

[0046] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise expressly and specifically limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0049] Please see Figure 1 , Figure 1 This is an assembly diagram of the vehicle body, hood, door, fender, and holding mechanism applicable to embodiments of this application. Specifically, the vehicle body 200 is the front structure of the automobile, the hood 300 is the engine hood structure of the automobile, the door 400 is the side door of the automobile, and the fender 500 is the front bottom structure of the automobile. There are gaps of 600 between the hood 300 and the fender 500, between the hood 300 and the door 400, and between the fender 500 and the door 400. The hood 300 is rotatably mounted relative to the vehicle body 200 via a hinge (not shown), and both the door 400 and the fender 500 are defined as functional components mounted on the vehicle body 200.

[0050] Please see Figure 1 and Figure 2 This application provides an assembly fixture 100 for assembling a hood 300 onto a vehicle body 200, and can adjust the gap 600 between the hood 300 and the fender 500, as well as the gap 600 between the hood 300 and the door 400, thereby improving the assembly accuracy of the hood 300.

[0051] It should be noted that during the process of assembling the hood 300 to the body 200 using the assembly fixture 100, the hinges are loose relative to the hood 300 and the body 200 to ensure that the hood 300 can move within a certain range relative to the body 200.

[0052] For ease of description, a three-dimensional coordinate system has been added to some of the accompanying drawings. The X-axis, Y-axis, and Z-axis are all perpendicular to each other.

[0053] Please see Figure 2The assembly fixture 100 includes a frame 110 and two assembly mechanisms 120. The frame 110 includes a frame 111 and two mounting members 112. The frame 111 is generally cuboid, with its length parallel to the X-axis, its width parallel to the Y-axis, and its thickness parallel to the Z-axis. The two mounting members 112 are connected to opposite ends of the frame 111 along the Y-axis. Each assembly mechanism 120 corresponds to one mounting member 112. Each assembly mechanism 120 includes a positioning component 121 and a first sliding member 12. 2. A second sliding member 123, a hood support member 124, and a hinge support member 125; a positioning assembly 121 connected to the frame 111 and configured to be positioned on the vehicle body 200; a first sliding member 122 slidably connected to the mounting member 112 along the X-axis; a second sliding member 123 slidably connected to the first sliding member 122 along the Y-axis; a hood support member 124 connected to the second sliding member 123 and configured to position the hood 300; and a hinge support member 125 connected to the mounting member 112 and configured to support the hinge. When the positioning assembly 121 is positioned on the vehicle body 200, the hood support member 124 positions the hood 300, and the hinge support member 125 supports the hinge, the first sliding member 122 and the second sliding member 123 cooperate to move the hood 300 relative to the hinge, thereby adjusting the position of the hood 300 relative to the vehicle body 200.

[0054] It should be noted that the above-mentioned adjustment of the position of the hood 300 relative to the body 200 refers to adjusting the gap 600 between the hood 300 and the fender 500 and the gap 600 between the hood 300 and the door 400 by using the assembly tool 100.

[0055] In the aforementioned assembly fixture 100, the hood 300 can be supported by the hood support member 124, and can be positioned with the vehicle body 200 by the positioning component 121 and the hinge support member 125. The hood support member 124 can be moved relative to the vehicle body 200 by the first sliding member 122 and the second sliding member 123, so that the hood 300 can be self-adapted to the actual size deviation of the vehicle body during the assembly process, thereby improving the assembly accuracy of the hood 300.

[0056] Please see Figure 3 In some embodiments, the positioning component 121 includes a first positioning member 1211 and a second positioning member 1212. The first positioning member 1211 is connected to the frame 111 to be positioned to the vehicle body 200, and the second positioning member 1212 is connected to the frame 111 to be positioned to the fender 500. The mounting member 112 is located between the first positioning member 1211 and the second positioning member 1212.

[0057] For example, a first positioning hole is provided on the vehicle body 200. The first positioning member 1211 is inserted into the first positioning hole to realize the positioning of the assembly tool 100 relative to the vehicle body 200. The first positioning hole can be a shock absorber hole. The number of the first positioning member 1211 and the first positioning hole can be multiple and are set in a one-to-one correspondence.

[0058] For example, the fender 500 has a second positioning hole, and the second positioning member 1212 is inserted into the second positioning hole to position the assembly fixture 100 relative to the fender 200. The number of second positioning members 1212 and second positioning holes can both be multiple and are arranged in a one-to-one correspondence.

[0059] Please see Figure 4 In some embodiments, the mounting member 112 has a mounting clip 112a, and the first sliding member 122 includes a first sliding body 1221, a first protrusion 1222, and a linkage 1223. The first protrusion 1222 is connected to the first sliding body 1221 and is slidably engaged with the mounting clip 112a along the X-axis direction. The linkage 1223 is connected to the side of the first sliding body 1221 opposite to the first protrusion 1222, and the linkage 1223 is slidably connected to the second sliding member 123 along the Y-axis direction.

[0060] In this embodiment, the mounting clip 112a is a groove structure and the first protrusion 1222 is a protrusion structure. In other embodiments, the mounting clip 112a can also be a protrusion structure and the first protrusion 1222 can be a groove structure.

[0061] Please see Figure 5 In some embodiments, the mounting member 112 is provided with a plurality of scales 112b, which are arranged along the X-axis direction. Each assembly mechanism 120 also includes an indicator 126. The indicator 126 is connected to the first sliding body 1221 and corresponds to the plurality of scales 112b in the Y-axis direction. The indicator 126 is configured to indicate the movement distance of the first sliding body 1221 relative to the mounting member 112.

[0062] Therefore, multiple scales 112b facilitate quick identification of the movement distance of the first sliding body 1221 relative to the mounting part 112, thereby reducing assembly difficulty.

[0063] In some embodiments, each assembly mechanism 120 further includes a stop 127. The stop 127 is connected to the mounting member 112 and located in the X-axis direction, and is used to stop the first slider 1221 to limit the range of motion of the first slider 1221 relative to the mounting member 112.

[0064] Please see Figure 5In some embodiments, the linkage 1223 includes an assembly part 1223a and a linkage part 1223b. The assembly part 1223a is connected to the first sliding body 1221, and the linkage part 1223b is connected to the assembly part 1223a. The second sliding member 123 includes a second protrusion 1231, a second sliding body 1232, and a disassembly / assembly body 1233. The second protrusion 1231 is slidably engaged with the linkage part 1223b. One end of the second sliding body 1232 is connected to the second protrusion 1231. The disassembly / assembly body 1233 is detachably connected to the end of the second sliding body 1232 away from the second protrusion 1231. The cover support 124 is connected to the disassembly / assembly body 1233.

[0065] In this embodiment, the linkage part 1223b is a protruding structure, and the second protrusion 1231 is a groove structure. In other embodiments, the linkage part 1223b can be a groove structure, and the second protrusion 1231 can be a protruding structure.

[0066] In some embodiments, each assembly mechanism 120 further includes a baffle 128 and a rotating member 129. The baffle 128 is connected to the first sliding body 1221, and the rotating member 129 is rotatably connected to the second sliding body 1232 and can be inserted into the mounting member 112.

[0067] Therefore, the rotating component is inserted into the mounting component 112, which can prevent the second sliding component 123 from shaking when the first sliding component 122 moves along the X-axis direction, thus improving the assembly accuracy of the cover 300.

[0068] Please see Figure 4 In some embodiments, the hinge support 125 includes a connector 1251, a support 1252, and an adjuster 1253. The connector 1251 is connected to the mounting member 112, one end of the support 1252 is used to support the hinge, and the adjuster 1253 passes through the connector 1251 and is threaded to the other end of the support 1252 to adjust the position of the support 1252 relative to the connector 1251.

[0069] In some embodiments, each assembly mechanism 120 further includes a closing and tightening assembly 1291. The closing and tightening assembly 1291 includes a fixing member 1291a and a transmission member 1291b. The fixing member 1291a is connected to the first sliding member 122, and the transmission member 1291b is connected to the fixing member 1291a and configured as a fixed hinge.

[0070] It should be noted that the working process and principle of the fixed hinge of transmission component 1291b can be obtained directly from the published documents, and will not be repeated here.

[0071] Please see Figure 1 and Figure 6In some embodiments, the assembly fixture 100 further includes a holding mechanism 130, which includes a base 131, a guide 132, a magnetic suction member 133, and an guide member 134. The guide 132 is connected to the base 131 and is used to fit against the surface of the door 400. The magnetic suction member 133 is connected to the base 131 and is used to attract the door 400. The guide member 134 is connected to the base 131 and is used to fit against the side of the door 400 facing the fender 500 to abut against the hood 300.

[0072] Therefore, the holding mechanism 130 can serve as a reference relative to the door 400 and fender 500 when assembling the hood 300, which helps to improve the assembly accuracy of the hood 300.

[0073] In this embodiment, there can be two holding mechanisms 130, and the two holding mechanisms 130 correspond one-to-one with the two assembly mechanisms 120.

[0074] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An assembly fixture for assembling a hood to a vehicle body, the hood being connected to the vehicle body via a hinge, characterized in that... The assembly fixture includes: The frame includes a housing and two mounting components, the two mounting components being connected to opposite ends of the housing, respectively. Two assembly mechanisms correspond one-to-one with the two mounting components. Each assembly mechanism includes a positioning component, a first sliding component, a second sliding component, a hood support component, and a hinge support component. The positioning component is connected to the frame and configured to be positioned on the vehicle body. The first sliding component is slidably connected to the mounting component, and the second sliding component is slidably connected to the first sliding component. The hood support component is connected to the second sliding component and configured to position the hood. The hinge support component is connected to the mounting component and configured to support the hinge. Wherein, the sliding direction of the first sliding member is perpendicular to the sliding direction of the second sliding member. When the positioning component is positioned to the vehicle body, the hood support member positions the hood, and the hinge support member supports the hinge, the first sliding member and the second sliding member cooperate to drive the hood to move relative to the hinge, so as to adjust the position of the hood relative to the vehicle body.

2. The assembly tooling as described in claim 1, characterized in that, Functional components are installed on the vehicle body, and the positioning component includes: A first positioning element is connected to the frame to position itself to the vehicle body; The second positioning element is connected to the frame to position the functional element, and the mounting element is located between the first positioning element and the second positioning element.

3. The assembly tooling as described in claim 1, characterized in that, The mounting component has a mounting clip body, and the first sliding component includes: First sliding body; The first protrusion connects to the first slider and engages with the mounting clip body in a sliding engagement. The linkage body is connected to the side of the first sliding body opposite to the first protrusion and is slidably connected to the second sliding member.

4. The assembly tooling as described in claim 3, characterized in that, The mounting component has multiple graduations, which are arranged along the sliding direction of the first sliding body. Each assembly mechanism further includes: An indicator is connected to the first slider and corresponds to a plurality of the scales in the sliding direction of the second slider. The indicator is configured to indicate the movement distance of the first slider relative to the mounting member.

5. The assembly tooling as described in claim 3, characterized in that, Each of the assembly mechanisms further includes: A stop member, connected to the mounting member and located in the sliding direction of the first sliding body, is used to stop the first sliding body and limit the range of motion of the first sliding body relative to the mounting member.

6. The assembly fixture as described in claim 3, characterized in that, The linkage body includes an assembly part and a linkage part. The assembly part is connected to the first sliding body, and the linkage part is connected to the assembly part. The second sliding member includes: The second protrusion is slidably engaged with the linkage part. The second sliding body has one end connected to the second protrusion; The detachable body is detachably connected to the end of the second sliding body away from the second protrusion, and the cover support is connected to the detachable body.

7. The assembly tooling as described in claim 6, characterized in that, Each of the assembly mechanisms further includes: Baffle, connected to the first sliding body; A rotating component that is rotatably connected to the second sliding body and can be inserted into the mounting component.

8. The assembly tooling as described in claim 1, characterized in that, The hinge support includes: The connector is connected to the mounting component; A support body, one end of which is used to support the hinge; An adjusting body is inserted through the connecting body and threaded to the other end of the support body to adjust the position of the support body relative to the connecting body.

9. The assembly tooling as described in claim 1, characterized in that, Each of the assembly mechanisms further includes: The closing and tightening assembly includes a fixing member and a transmission member, the fixing member being connected to the first sliding member, and the transmission member being connected to the fixing member and configured to fix the hinge.

10. The assembly tooling as described in claim 2, characterized in that, The functional components include a fender and a door, and the assembly fixture further includes a clamping mechanism, which includes: Base; A guide member, connected to the base, is used to conform to the surface of the vehicle door; A magnetic connector, connected to the base, is used to attach the vehicle door. An inlet piece, connected to the base, is used to fit against the side of the door facing the fender to abut against the hood.

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