Automobile front-end module positioning tool

Abstract

The utility model provides an automobile front-end module positioning tool, which relates to the field of automobile assembly, and comprises a tool frame, a supporting mechanism and a clamping mechanism, the tool frame comprises a reference cross rod (11), a sliding cross rod (12), a fixed cross rod (13), two supporting upright posts (14) and two connecting upright posts (15); the two supporting stand columns (14) are each provided with a supporting mechanism, the portions, located on the two sides of the supporting stand columns, of the sliding transverse rod (12) are each provided with a clamping mechanism, and the clamping mechanisms are connected with the corresponding supporting mechanisms through connecting rods (40). The fixed cross rod (14) is positioned on the two sides of the connecting upright post (15) and is respectively clamped with fixed sliding blocks (130) in a sliding manner; and fastening holes corresponding to mounting holes of the front-end module are formed in the fixed sliding blocks (130). The positioning tool can stably position the front-end modules of different sizes and shapes, is wide in application range, effectively improves the assembly efficiency, and saves the assembly cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive assembly technology, specifically to a positioning fixture for automotive front-end modules. Background Technology

[0002] In automobile manufacturing, modular production has become the mainstream assembly method, adopted by most OEMs. Currently, front-end modules, such as anti-collision beams, water tanks, condensers, intercoolers, and engine hood locks, need to be assembled into assemblies offline, undergoing testing and debugging before being installed at the corresponding workstations to connect with the vehicle body. During the assembly of front-end modules, positioning fixtures are used for positioning and fixing to improve installation efficiency and ensure installation accuracy. Chinese patent document CN209634620U discloses a positioning fixture for automotive front-end modules. This fixture includes a fixture body and a guide positioning component connected to the fixture body. At least a portion of the shape of the guide positioning component matches at least a portion of the shape of the installation gap, allowing the front-end module to be connected to the positioning fixture via the guide positioning component, and the positioning fixture to be inserted into the installation position on the front longitudinal beam via the guide positioning component. This positioning fixture greatly simplifies the assembly process of front-end modules, thereby significantly improving assembly efficiency. However, this positioning tooling cannot be adaptively adjusted for front-end module assemblies of different sizes and shapes. This results in the need to use corresponding positioning tooling for front-end module assemblies of different sizes and shapes, increasing tooling manufacturing costs and reducing the applicability of the positioning tooling. Utility Model Content

[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a positioning fixture for automotive front-end modules. This positioning fixture can not only adapt to the fixing and positioning of front-end modules of different sizes and shapes, but also can stably position the front-end modules, thereby improving the convenience and efficiency of front-end module assembly and reducing the assembly time of front-end modules.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A positioning fixture for an automotive front-end module includes a fixture frame, a support mechanism, and a clamping mechanism. The fixture frame includes a reference crossbar, a sliding crossbar, a fixed crossbar, two support columns, and two connecting columns. The reference crossbar, sliding crossbar, and fixed crossbar are arranged parallel to each other, with the sliding crossbar positioned between the reference crossbar and the fixed crossbar. The reference crossbar and the sliding crossbar are connected by two parallel support columns, and the sliding crossbar and the fixed crossbar are connected by two parallel connecting columns. Each of the two support columns has a set of support mechanisms. A set of clamping mechanisms is set on each side of the sliding crossbar, and the clamping mechanisms are connected to the corresponding support mechanisms by connecting rods. The fixed crossbar is located on both sides of the connecting columns and slides to engage fixed sliders, with fastening holes on the fixed sliders corresponding to the mounting holes of the front-end module.

[0006] Based on further optimization of the above scheme, the length of the fixed crossbar is less than the length of the sliding crossbar, and the length of the sliding crossbar is not greater than the length of the reference crossbar.

[0007] Based on further optimization of the above scheme, the distance between the supporting columns is greater than the distance between the connecting columns.

[0008] Based on further optimization of the above scheme, the support mechanism includes a T-shaped slider, a support base, and a return spring. A vertical groove with a T-shaped cross-section is opened in the middle of the support column, and the T-shaped slider is slidably arranged in the vertical groove. The three ends of the T-shaped slider pass through the side wall of the corresponding support column, and the support base is fixedly installed at its vertical end. The support base is slidably connected to the side of the corresponding support column. The bottom surface of the T-shaped slider is connected to the bottom surface of the corresponding vertical groove through a return spring.

[0009] To ensure the sliding of the two sets of support mechanisms and avoid the problem of mechanism jamming, based on the above scheme, the horizontal ends of the T-shaped sliders that are close to each other are connected by a connecting rod, and the horizontal ends of the T-shaped sliders that are far apart from each other are rotatably connected by a connecting rod, with the connecting rod and the reference rod being parallel to each other.

[0010] Based on further optimization of the above scheme, the clamping mechanism includes a horizontal slider, a sliding base, and a clamping block. A horizontal sliding bar is provided at one end of each of the two supporting columns, and a horizontal slider is slidably disposed within the horizontal sliding bar. A sliding base is slidably disposed at the bottom of the horizontal slider corresponding to the horizontal slider, and the sliding base is rotatably connected to the corresponding connecting rod. A clamping block is slidably disposed on the side of the horizontal slider corresponding to the support base and the horizontal slider. The bottom and side surfaces of the horizontal slider are connected to the corresponding sliding base and clamping block through connecting blocks, and sliding tracks communicating with the horizontal sliding grooves are provided at the bottom and side surfaces of the horizontal slider corresponding to the connecting blocks.

[0011] Based on further optimization of the above scheme, a buffer rubber layer is fixedly provided on the side of the clamping blocks that are close to each other, and the surface of the buffer rubber layer is provided with anti-slip ridges, thereby ensuring the stability of the clamping.

[0012] The following are the technical effects of this utility model:

[0013] This application's support mechanism supports the front-end module body and utilizes the weight of the front-end module body to drive the support mechanism to slide. Through the cooperation of the support mechanism, connecting rods, and clamping mechanism, the clamping mechanism clamps the side wall of the front-end module body, thus achieving pre-positioning of the front-end module body. Subsequently, by the engagement of the fastening holes of the fixed slider sliding on the fixed crossbar with the mounting holes on the front-end module body, a stable positioning of the front-end module body is achieved, thereby avoiding problems such as offset and shaking during the assembly of the front-end module assembly, improving installation convenience and ensuring installation efficiency. Furthermore, the positioning fixture of this application can position and fix front-end modules of different sizes and shapes, effectively expanding the applicability of the positioning fixture and reducing equipment manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the positioning tooling in the embodiment of this utility model.

[0015] Figure 2 This is an overall cross-sectional view of the positioning tooling in an embodiment of this utility model.

[0016] Figure 3 for Figure 2 A sectional view along the AA direction.

[0017] Figure 4 for Figure 2 BB-direction sectional view.

[0018] Among them, 11, reference crossbar; 12, sliding crossbar; 13, fixed crossbar; 130, fixed slider; 14, support column; 15, connecting column; 21, T-shaped slider; 210, connecting crossbar; 22, support base; 23, return spring; 31, horizontal slider; 32, sliding base; 33, clamping block; 40, connecting rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1:

[0021] A positioning fixture for an automotive front-end module includes a fixture frame, a support mechanism, and a clamping mechanism, as shown in the reference. Figure 1 As shown: The tooling frame includes a reference crossbar 11, a sliding crossbar 12, a fixed crossbar 13, two supporting columns 14, and two connecting columns 15. The reference crossbar 11, the sliding crossbar 12, and the fixed crossbar 13 are arranged parallel to each other, and the sliding crossbar 12 is located between the reference crossbar 11 and the fixed crossbar 13. The reference crossbar 11 and the sliding crossbar 12 are connected by two parallel supporting columns 14 (e.g., ...). Figure 1 As shown, the upper and lower ends of the two supporting columns 14 are connected to the sliding crossbar 12 and the reference crossbar 11, respectively; the connection can be achieved by fastening bolts passing through the reference crossbar 11 or the sliding crossbar 12, or by other methods, which are not specifically limited in this embodiment. The sliding crossbar 12 and the fixed crossbar 13 are connected by two parallel connecting columns 15 (e.g., Figure 1 As shown, the upper and lower ends of the two connecting columns 15 are connected to the fixed crossbar 13 and the sliding crossbar 12, respectively. This connection can be achieved by fastening bolts passing through the fixed crossbar 13 or the sliding crossbar 12, or by other methods (not specifically limited in this embodiment). The length of the fixed crossbar 13 is less than the length of the sliding crossbar 12, and the length of the sliding crossbar 12 is not greater than the length of the reference crossbar 11 (in this embodiment, the lengths of the sliding crossbar 12 and the reference crossbar 11 are the same). The distance between the two supporting columns 14 is greater than the distance between the two connecting columns 15 (e.g., ...). Figure 1 (As shown). At the same time, several positioning holes can be evenly opened on the reference crossbar 11, and the entire tooling frame can be positioned on the base or the end face of the operating table through the positioning holes.

[0022] Each of the two support columns 14 is equipped with a set of support mechanisms. A set of clamping mechanisms is located on both sides of the support column 14 via a sliding crossbar 12, and the clamping mechanisms are connected to the corresponding support mechanisms via a connecting rod 40. Specifically, the support mechanism includes a T-shaped slider 21, a support base 22, and a return spring 23. A vertical sliding groove with a T-shaped cross-section is opened in the middle of the support column 14 (combined with...). Figure 2 and Figure 3 (As shown) and a T-shaped slider 21 is slidably installed in the vertical groove (i.e., the outer wall of the T-shaped slider 21 is slidably connected to the inner wall of the vertical groove); the three ends of the T-shaped slider 21 respectively penetrate the side wall of the corresponding supporting column 14 (as shown). Figure 3 As shown) and its vertical end (i.e. Figure 3 A support base 22 is fixedly installed at the bottom end of the T-shaped slider 21 shown, and the support base 22 is slidably connected to the side of the corresponding support column 14; the bottom surface of the T-shaped slider 21 is connected to the bottom surface of the corresponding vertical slide groove by a return spring 23 (e.g., Figure 2 (As shown); the ends of the horizontal lines of the T-shaped sliders 21 that are close to each other are connected by a connecting rod 210 (as shown). Figure 3(As shown) A connecting rod 40 is rotatably set at the ends of the T-shaped sliders 21 that are far apart from each other, and the connecting rod 210 is parallel to the reference rod 11. The clamping mechanism includes a horizontal slider 31, a sliding base 32 and a clamping block 33. The sliding rod 12 is located at one end of the two supporting columns 14, and a horizontal groove is opened at each end. The horizontal slider 31 is slidably set in the horizontal groove (combined with) Figure 2 and Figure 4 As shown), the bottom of the sliding crossbar 12 is slidably connected to the horizontal slider 31 with a sliding base 32 (i.e., the top surface of the sliding base 32 is slidably connected to the bottom surface of the sliding crossbar 12), and the sliding base 32 is rotatably connected to the corresponding connecting rod 40 (i.e., both ends of the connecting rod 40 are rotatably connected to the bottom surface of the corresponding sliding base 32 and the side of the T-shaped slider 21 away from each other through bearing seats). The side of the sliding crossbar 12 is slidably connected to the support base 22 and the horizontal slider 31 with a clamping block 33. The bottom surface and side surface of the horizontal slider 31 are connected to the corresponding sliding base 32 and clamping block 33 through connecting blocks (e.g., ...). Figure 4 (As shown) and the bottom and side connecting blocks of the sliding crossbar 12 are provided with sliding tracks that communicate with the horizontal slide groove (in conjunction with) Figure 2 and Figure 4 As shown); a buffer rubber layer is fixedly provided on the side of the clamping blocks 33 that are close to each other, and the surface of the buffer rubber layer is provided with anti-slip protrusions (such as...). Figure 1 (as shown), thus ensuring the stability of the clamping.

[0023] The fixed crossbar 13 is located on both sides of the connecting column 15, and the fixed slider 130 is slidably engaged with it (that is, horizontal grooves are opened at both ends of the fixed crossbar 13, and the fixed slider 130 is slidably engaged with it in the horizontal grooves, such as...). Figure 1 and Figure 2 (As shown) and fastening holes are provided on the mounting holes of the front-end module on the fixed slider 130 (refer to...) Figure 1 , Figure 2 As shown, the size of the fastening hole corresponds to the mounting hole setting of the front module.

[0024] Working principle:

[0025] In use, firstly, the entire tooling frame is fixedly installed on the operating table or other positioning base; then, the assembled front module main body (or main frame) is placed on the end faces of the two support seats 22, and the two support seats 22 support and position the front module main body; at the same time, due to the weight of the front module main body itself (at this time, the front module main body can also be actively pressed vertically downward), the support seats 22, the connecting crossbar 210 and the T-shaped slider 21 move down together, the return spring 23 is compressed, and then the connecting rod 40 pulls the two clamping blocks 33 to slide towards each other, thereby clamping and fixing the side wall of the front module main body; then, the positions of the two fixed sliders 130 are adjusted so that the fastening holes on the fixed sliders 130 correspond to the mounting holes on the front module main body, and fastening pins or fastening screws are inserted into the corresponding mounting holes and fastening holes in sequence to achieve the positioning and fixing of the front module main body; finally, the remaining parts are assembled on the front module main body fixed by the positioning tooling to obtain the front module assembly.

[0026] Example 2:

[0027] As another preferred embodiment of this application, in order to ensure that the front-end module does not tip over during initial positioning, based on the scheme of embodiment 1, the longitudinal section of the support base 22 is set as an L-shaped structure and the end face of the L-shaped structure is slidably provided with clamping claws. The clamping claws are connected to the inner sidewall of the L-shaped structure through springs, thereby adapting to front-end modules of different thicknesses.

[0028] Example 3:

[0029] As another preferred embodiment of this application, based on the scheme of embodiment 1, the fixed slider 130 is controlled to slide in the corresponding horizontal groove by adjusting bolts set at both ends of the fixed crossbar 13. Specifically, the adjusting bolt is rotatably set in the corresponding horizontal groove (the central axis of the adjusting bolt is set parallel to the horizontal groove) and passes through the corresponding fixed slider 130 in the horizontal groove. The adjusting bolt and the fixed slider 130 are threadedly connected, and a rotating handle is set at the end of the adjusting bolt located outside the fixed crossbar 13, thereby realizing the control of the fixed slider 130.

Claims

1. A positioning fixture for an automotive front-end module, characterized in that: The fixture includes a tooling frame, a support mechanism, and a clamping mechanism. The tooling frame includes a reference crossbar, a sliding crossbar, a fixed crossbar, two support columns, and two connecting columns. The reference crossbar, sliding crossbar, and fixed crossbar are arranged parallel to each other, with the sliding crossbar positioned between the reference crossbar and the fixed crossbar. The reference crossbar and the sliding crossbar are connected by two parallel support columns, and the sliding crossbar and the fixed crossbar are connected by two parallel connecting columns. Each of the two support columns has a set of support mechanisms. A set of clamping mechanisms is set on each side of the sliding crossbar, and the clamping mechanisms are connected to the corresponding support mechanisms by connecting rods. The fixed crossbar is located on both sides of the connecting columns and slides to engage fixed sliders, with fastening holes on the fixed sliders corresponding to the mounting holes of the front-end modules.

2. The automotive front-end module positioning fixture according to claim 1, characterized in that: The length of the fixed crossbar is less than the length of the sliding crossbar, and the length of the sliding crossbar is not greater than the length of the reference crossbar.

3. The automotive front-end module positioning fixture according to claim 1, characterized in that: The distance between the supporting columns is greater than the distance between the connecting columns.

4. A positioning fixture for an automotive front-end module according to any one of claims 1 to 3, characterized in that: The support mechanism includes a T-shaped slider, a support base, and a return spring. A vertical groove with a T-shaped cross-section is opened in the middle of the support column, and the T-shaped slider is slidably arranged in the vertical groove. The three ends of the T-shaped slider pass through the side wall of the corresponding support column, and the support base is fixedly installed at its vertical end. The support base is slidably connected to the side of the corresponding support column. The bottom surface of the T-shaped slider is connected to the bottom surface of the corresponding vertical groove through a return spring.

5. The automotive front-end module positioning fixture according to claim 4, characterized in that: The horizontal ends of the T-shaped sliders that are close to each other are connected by a connecting rod, and the horizontal ends of the T-shaped sliders that are far apart are rotatably connected by a connecting rod. The connecting rod is parallel to the reference rod.

6. The automotive front-end module positioning fixture according to claim 5, characterized in that: The clamping mechanism includes a horizontal slider, a sliding base, and a clamping block. A horizontal sliding bar is located at one end of each of the two supporting columns, and a horizontal slider is slidably installed in the horizontal sliding bar. A sliding base is slidably installed at the bottom of the horizontal slider corresponding to the horizontal slider, and the sliding base is rotatably connected to the corresponding connecting rod. A clamping block is slidably installed on the side of the horizontal slider corresponding to the support base and the horizontal slider. The bottom and side of the horizontal slider are connected to the corresponding sliding base and clamping block through connecting blocks, and sliding tracks communicating with the horizontal sliding grooves are opened at the bottom and side of the horizontal slider corresponding to the connecting blocks.

7. The automotive front-end module positioning fixture according to claim 6, characterized in that: A buffer rubber layer is fixedly provided on one side of the clamping blocks that are close to each other, and the surface of the buffer rubber layer is provided with anti-slip ridges.

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