A positioning device for automobile fender assembly

Abstract

The utility model discloses a positioning device for automobile fender assembly, including device ontology and setting at the both ends of device ontology's positioning part, and positioning part includes main locating block, main locating pin, auxiliary locating block, fender locating bolt, the device ontology is formed through the welding of steel pipe and the hole connecting piece, and the light weight structure is convenient to take, and main locating block, auxiliary locating block cooperate main locating pin, fender locating bolt, guarantee the symmetry of left and right fender relative to the upper outer plate of front wall, and ensure the symmetry of hood assembly, the positioning device is accurate and effective to the left and right size control between left and right fender, guarantees product quality, position accuracy, shortens the assembly cycle of product, and economic and practical, reduces the investment of technological equipment.

Description

Technical Field

[0001] This utility model belongs to the field of automotive assembly technology, specifically relating to a positioning device for assembling automotive fenders. Background Technology

[0002] As people continue to pursue higher quality in car appearance, especially the most intuitive feeling of uniform gaps and matching surfaces, clear requirements have been put forward for the gaps and surface differences of the car body during the car development and design process. The DTS (Dimensional Technical Specification) defines the specifications for gaps, surface differences and related tolerances.

[0003] As a major component of the vehicle body, the fender, together with the hood, front grille frame and other parts, forms the front part of the car. It is used for the assembly of exterior parts such as headlights, headlight trim panels, and front grilles. It is the area that customers come into contact with most frequently and has high requirements for aesthetics. This requires effective and stable control over the gaps and surface differences formed after the parts in this area are assembled.

[0004] The assembly of the fenders of a certain light commercial vehicle initially employed a conventionally designed positioning device. However, due to factors such as improper selection of positioning references and the manufacturing precision of parts, the gaps between the fenders and the hood became uneven after assembly. Furthermore, the upper contour and surface dimensions of the headlights formed by these components were unstable, failing to meet design and inspection specifications. Consequently, a high frequency of quality defects, such as uneven gaps and mismatched surfaces between the headlights and surrounding components, persisted for a long time, requiring extensive rework and repair to resolve.

[0005] Accurate and stable positioning of the fenders after assembly is a fundamental condition for ensuring that the assembly of the hood, front cover frame and fenders meets the design requirements, thereby achieving the expected effect in terms of gaps and surface differences in the car's exterior. Utility Model Content

[0006] To address the aforementioned issues, the main objective of this invention is to design a positioning device for assembling automobile fenders, thereby resolving the left-right positioning of the fenders and ensuring that the assembled fenders meet the requirements of GD&T (Geometric Dimensioning and Tolerancing), thus satisfying the needs of product design verification, production, and quality control.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A positioning device for assembling automobile fenders includes a device body and positioning parts disposed at both ends of the device body. The main body of the device is a spatial frame that matches the shape of the upper outer panel and fender of the car front bulkhead, and is welded together from steel pipes and perforated connectors. The positioning section is provided in two sets, which are symmetrically arranged with the vertical center line of the device body as the reference. Each positioning unit includes: Two main positioning blocks are provided, which are fixed to the back of the perforated connector, arranged vertically and in contact with the profile of the upper outer panel of the front bulkhead. The main positioning pin is fixed to the back of the perforated connector and corresponds to the positioning hole on the outer panel of the front bulkhead. Two auxiliary positioning blocks are provided. The first auxiliary positioning block is fixed to the front end of the connector with holes and contacts the profile of the fender. The second auxiliary positioning block is fixed to the back of the steel pipe and contacts the profile of the upper outer panel of the front bulkhead. The fender positioning pin is fixed to the outer side of the perforated connector via a mounting base and corresponds to the positioning hole of the fender.

[0008] As a further description of this utility model, the perforated connector is configured as a plate with several holes, comprising two pieces, located at both ends of the device body respectively.

[0009] As a further description of this utility model, each perforated connector includes a horizontal plate that fixes the main positioning block and the main positioning pin, and a vertical plate that connects the auxiliary positioning block and the fender positioning pin.

[0010] As a further description of this utility model, at least two steel pipes are provided, each connected to a vertical plate with a perforated connector; the horizontal plate with the perforated connector extends towards the middle of the steel pipe.

[0011] As a further description of this utility model, the second auxiliary positioning block is fixed to the back of the steel pipe by a positioning plate and is located at one-quarter of the length of the steel pipe.

[0012] As a further description of this utility model, the mounting base includes a horizontal plate and a vertical plate configured in an L-shape. The vertical plate is fixed to the outside of the connector with holes, and its top is provided with a limiting groove for fixing the fender positioning pin. The horizontal plate cooperates with the release and release of the fender positioning pin.

[0013] As a further description of this utility model, the fender positioning pin includes a pin body and a handle. The pin body is vertically installed on the horizontal plate of the mounting base, and the handle is engaged with the limiting groove.

[0014] Compared with the prior art, the technical effects of this utility model are as follows: This utility model provides a positioning device for assembling automobile fenders, including a device body and positioning parts disposed at both ends of the device body. The positioning parts include a main positioning block, a main positioning pin, an auxiliary positioning block, and a fender positioning pin. The device body is formed by welding steel pipes and perforated connectors, resulting in a lightweight structure that is easy to handle. The main positioning block and auxiliary positioning block, in conjunction with the main positioning pin and the fender positioning pin, ensure the symmetry of the left and right fenders relative to the upper outer panel of the front bulkhead, thus ensuring the symmetry of the hood assembly. This positioning device accurately and effectively controls the lateral dimensions between the left and right fenders, ensuring product quality and positional accuracy, shortening the product assembly cycle, and is economical and practical, reducing investment in process equipment. Attached Figure Description

[0015] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a front structural view of the positioning part of this utility model; Figure 3 This is a rear structural view of the positioning part of this utility model; Figure 4 This is a schematic diagram illustrating the application of the positioning device of this utility model; Figure 5 This is a schematic diagram of the positioning part of this utility model in conjunction with the outer front panel and the fender.

[0016] In the figure, 1. Device body, 11. Steel pipe, 12. Connector with holes, 2. Positioning part, 3. Main positioning block, 4. Main positioning pin, 5. Auxiliary positioning block, 51. First auxiliary positioning block, 52. Second auxiliary positioning block, 6. Fender positioning pin, 61. Pin body, 62. Handle, 7. Connecting plate, 8. Mounting seat, 81. Limiting groove, 9. Positioning plate, A. Upper outer panel of front bulkhead, B. Fender. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings: In one embodiment of this utility model, a positioning device for assembling automobile fenders is disclosed, such as... Figure 1-5 As shown, the device includes a main body 1 and positioning parts 2 located at both ends of the main body 1. The positioning parts 2 include a main positioning block 3, a main positioning pin 4, an auxiliary positioning block 5, and a fender positioning pin 6, which ensure the accuracy of the installation of the left and right fenders B of the car relative to the upper outer panel A of the front bulkhead.

[0018] Specifically, this embodiment provides a detailed description of the positional relationships and cooperative use of the various components included in the above-mentioned positioning device, as follows: Device body 1: It is a spatial frame that matches the shape of the outer panel A and fender B of the front bulkhead of the car, and is welded together by steel pipes 11 and perforated connectors 12. The perforated connectors 12 are plate-shaped with several holes, including two pieces, located at both ends of the device body 1. Each perforated connector 12 includes a horizontal plate and a vertical plate. At least two steel pipes 11 are provided, which are respectively connected to the vertical plates of the perforated connectors 12. The horizontal plates of the perforated connectors 12 are located on the back of the steel pipes 11 and extend towards the middle of the steel pipes 11.

[0019] In this embodiment, to ensure the stability and accuracy of the positioning device, four steel pipes 11 are provided, and multiple connecting plates 7 are evenly arranged in the middle of the steel pipes 11 for reinforcement.

[0020] Positioning part 2: Two sets are set up, which are symmetrically arranged with the vertical center line of the device body 1 as the reference; each set of positioning part 2 includes: main positioning block 3, main positioning pin 4, auxiliary positioning block 5, 6 fender positioning pin.

[0021] like Figure 2-3 As shown, there are two main positioning blocks 3, which are fixed to the ends of the horizontal plates of the perforated connector 12, facing the back of the horizontal plates, arranged vertically, and in contact with the profile of the upper outer panel A of the front fascia; the main positioning pin 4 is fixed to the back of the horizontal plate of the perforated connector 12, located inside the main positioning block 3, and corresponds to the positioning hole of the upper outer panel A of the front fascia, so that the positioning device can be stably and reliably positioned with the upper outer panel A of the front fascia; there are two auxiliary positioning blocks 5, the first auxiliary positioning block 51 is fixed to the front end of the vertical plate of the perforated connector 12 and in contact with the profile of the fender B, and the second auxiliary positioning block 52 is fixed to the back of the steel pipe 11 and in contact with the profile of the upper outer panel A of the front fascia; the fender positioning pin 6 is fixed to the outer side of the vertical plate of the perforated connector 12 through the mounting base 8 and corresponds to the positioning hole of the fender B.

[0022] Specifically, in this embodiment, the second auxiliary positioning block 52 is fixed to the back of the steel pipe 11 by the positioning plate 9 and is located at one-quarter of the length of the steel pipe 11. The mounting base 8 includes a horizontal plate and a vertical plate configured in an L-shape. The vertical plate is fixed to the outside of the connector with holes 12, and its top is provided with a limiting groove 81 for fixing the fender positioning pin 6. The horizontal plate cooperates with the removal and release of the fender positioning pin 6. The fender positioning pin 6 includes a pin body 61 and a handle 62. The pin body 61 is vertically installed on the horizontal plate of the mounting base 8, and the handle 62 is engaged in the limiting groove 81. Through the setting of the limiting groove 81, the fender positioning pin 6 has two states: a working state when inserted into the fender B positioning hole, and a non-working state when pulled out of the fender B positioning hole, the handle 62 is rotated and engaged in the limiting groove 81.

[0023] like Figure 4-5As shown, during the use of the positioning device of this utility model, the main positioning pin 4 of the device body 1 is inserted into the positioning hole of the outer front panel A, and then the main positioning block 3 and the auxiliary positioning block 5 are brought into contact with the corresponding positioning surfaces of the outer front panel A and the inner fender B. The left and right fenders B are adjusted in the left and right directions so that their positioning holes are in the position of the fender positioning pin 6. The handle of the fender positioning pin 6 is rotated, and the pin body 61 is lowered so that it is inserted into the positioning hole of the fender B. The fixing bolts on the fender are tightened, and then the pin body 61 of the fender positioning pin 6 is pulled out. The handle 62 is rotated and placed in the limiting groove 81. The positioning device is then taken out, thus completing the positioning and assembly work of the fender.

[0024] The above content discloses the fender assembly and positioning device of this utility model, which has the following advantages compared with the prior art: 1. The main body of the device of this utility model is welded from a steel pipe and a perforated connector, which is a lightweight structure that meets the requirements of use and is easy to handle; 2. The main positioning block and auxiliary positioning block of this utility model, together with the main positioning pin and the fender positioning pin, ensure the symmetry of the left and right fenders relative to the upper outer panel of the front bulkhead, and ensure the symmetry of the hood assembly. 3. The positioning device of this utility model accurately and effectively controls the left and right dimensions between the left and right fenders, ensuring product quality, shortening the product assembly cycle, and reducing investment in process equipment.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A positioning device for assembling automobile fenders, characterized in that, Includes the device body and positioning parts disposed at both ends of the device body; The main body of the device is a spatial frame that matches the shape of the upper outer panel and fender of the car front bulkhead, and is welded together from steel pipes and perforated connectors. The positioning section is provided in two sets, which are symmetrically arranged with the vertical center line of the device body as the reference. Each positioning unit includes: Two main positioning blocks are provided, which are fixed to the back of the perforated connector, arranged vertically and in contact with the profile of the upper outer panel of the front bulkhead. The main positioning pin is fixed to the back of the perforated connector and corresponds to the positioning hole on the outer panel of the front bulkhead. Two auxiliary positioning blocks are provided. The first auxiliary positioning block is fixed to the front end of the connector with holes and contacts the profile of the fender. The second auxiliary positioning block is fixed to the back of the steel pipe and contacts the profile of the upper outer panel of the front bulkhead. The fender positioning pin is fixed to the outer side of the perforated connector via a mounting base and corresponds to the positioning hole of the fender.

2. The positioning device for assembling automobile fenders according to claim 1, characterized in that: The perforated connector is configured as a plate with several holes, comprising two pieces, located at both ends of the device body respectively.

3. A positioning device for assembling automobile fenders according to claim 2, characterized in that: Each perforated connector includes a horizontal plate that securely connects the main positioning block and the main positioning pin, and a vertical plate that connects the auxiliary positioning block and the fender positioning pin.

4. A positioning device for assembling automobile fenders according to claim 3, characterized in that: At least two steel pipes are provided, each connected to a vertical plate with a perforated connector; the horizontal plate with the perforated connector extends towards the middle of the steel pipe.

5. A positioning device for assembling automobile fenders according to claim 4, characterized in that: The second auxiliary positioning block is fixed to the back of the steel pipe by a positioning plate and is located at one-quarter of the length of the steel pipe.

6. A positioning device for assembling automobile fenders according to claim 1, characterized in that: The mounting base includes an L-shaped horizontal plate and a vertical plate. The vertical plate is fixed to the outside of the connector with holes, and its top is provided with a limiting groove for fixing the fender positioning pin. The horizontal plate is used to release the fender positioning pin.

7. A positioning device for assembling automobile fenders according to claim 6, characterized in that: The fender positioning pin includes a pin body and a handle. The pin body is vertically mounted on the horizontal plate of the mounting base, and the handle engages with the limiting groove.

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