A positioning device for automobile engine hood assembly

Abstract

The utility model discloses a positioning device for automobile engine bonnet assembly, including device ontology and setting on device ontology main positioning part, engine bonnet assembly positioning part and anti -turning clamping ware, main positioning part includes main locating block and main locating pin, and engine bonnet assembly positioning part includes engine bonnet assembly locating block and locating pin body, the device ontology is formed by steel pipe and welds with the hole connecting piece, and the lightweight structure is convenient to take, and main positioning part, engine bonnet assembly positioning part and anti -turning clamping ware cooperate, guarantee the position size of engine bonnet assembly to satisfy the assembly accuracy requirement, the positioning device accurately and effectively controls the assembly size of engine bonnet, guarantees product quality, 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 an automotive hood. 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 hood requires precise assembly. Its relative positional relationship with the left and right fenders must be accurate and stable to ensure that the relative positional relationship between the headlight boundary contour and the surface formed by the fenders and hood after assembly is accurate.

[0004] In the initial assembly of the hood of a certain light commercial vehicle, although an assembly positioning device was used to control the positional accuracy, the improper selection of the positioning reference of the positioning device itself and the influence of the manufacturing precision of the parts led to the long-term existence of quality defects such as uneven gaps and mismatched surfaces between the hood and the fender, the hood and the headlight, and the fender and the headlight after the hood was assembled. These defects could only be solved by a large number of assembly adjustments and offline rework and repair.

[0005] After the hood is assembled, the accurate and stable position between the hood and the left and right fenders is one of the basic conditions to ensure that the assembly of the hood 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 problems, the main objective of this invention is to design a positioning device for assembling automotive hoods, thereby solving the problem of rapid positioning of automotive hoods, ensuring that the dimensions of the assembled hood meet the hood assembly accuracy requirements, and guaranteeing that the hood accuracy complies with GD&T (Geometric Dimensioning and Tolerancing) requirements, 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 an automobile hood includes: The main body of the device is a spatial frame that matches the shape of the outer panel of the front bulkhead, fender, and hood of the car. It is made of steel pipes and perforated connectors welded together. The main positioning part includes two sets, which are symmetrically arranged with reference to the vertical center line of the device body and located at both ends of the lower part of the device body, corresponding to the inner panel of the fender for positioning. The hood mounting and positioning part includes two sets, which are symmetrically arranged with reference to the vertical center line of the device body and located at both ends of the upper part of the device body to position the hood. The anti-rollover clamp is located at the bottom of the device body, corresponding to the profile of the outer front panel.

[0008] As a further description of this utility model, the perforated connector is configured as a plate with several holes, and four steel pipes are provided, with the lower two pipes located on the same horizontal plane and the upper two pipes arranged vertically, and connected by the perforated connector to form a spatial frame.

[0009] As a further description of this utility model, each set of main positioning parts includes: The main positioning block includes two parts. The first positioning block is located below the front of the two lower steel pipes, and the second positioning block is located below the space between the two lower steel pipes. The first positioning block and the second positioning block are in contact with the profile of the inner panel of the fender. The main positioning pin is located at the lower part of the first positioning block and faces the lower part of the device body, corresponding to the positioning hole of the fender.

[0010] As a further description of this utility model, each set of engine hood mounting and positioning parts includes: The hood mounting positioning block includes two parts. The first mounting positioning block is located on the upper part of the two upper steel pipes, and the second mounting positioning block is located on the lower part of the two upper steel pipes. They are connected by a fastener with holes, and the first mounting positioning block and the second mounting positioning block are in contact with the hood. The hood positioning pin is set on the first mounting positioning block and faces the front of the device body, corresponding to the positioning hole of the hood.

[0011] As a further description of this utility model, two perforated fasteners are provided, which are respectively connected to the two sides of the first assembly positioning block and the second assembly positioning block, and limiting holes are opened at the positions corresponding to the engine hood positioning pins.

[0012] As a further description of this utility model, the hood positioning pin includes a positioning pin body and a handle. The handle is inserted into a limiting hole, which includes a first limiting groove and a second limiting groove. The first limiting groove and the second limiting groove are connected on one side and separated on the other side.

[0013] As a further description of this utility model, at least one anti-rollover clamp is provided, located at the front of the two lower steel pipes, including a rotating handle and a clamping part, with the clamping part facing upward and in contact with the profile of the upper outer plate of the front enclosure.

[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 an automobile hood, including a device body and a main positioning part, a hood assembly positioning part, and an anti-rollover clamp disposed on the device body. The main positioning part includes a main positioning block and a main positioning pin, and the hood assembly positioning part includes a hood assembly positioning block and a positioning pin body. 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 part, the hood assembly positioning part, and the anti-rollover clamp cooperate to ensure that the positional dimensions of the hood assembly meet the assembly accuracy requirements. This positioning device accurately and effectively controls the assembly dimensions of the hood, ensuring product quality, 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 side view of the overall structure of this utility model; Figure 3 This is a structural view of the main positioning part and the anti-rollover clamp of this utility model; Figure 4 A structural view of the engine hood assembly positioning part of this utility model; Figure 5 This is a structural view of the limiting hole of this utility model; Figure 6 This is a schematic diagram illustrating the application of the positioning device of this utility model; Figure 7 This is a schematic diagram illustrating the application of the positioning part of this utility model.

[0016] In the diagram, 1. Device body, 11. Steel pipe, 111. First steel pipe, 112. Second steel pipe, 113. Third steel pipe, 114. Fourth steel pipe, 12. Connector with holes, 13. Supporting steel pipe, 2. Anti-rollover clamp, 21. Rotating handle, 22. Clamping part, 23. Fixing frame, 3. Main positioning part, 4. Hood assembly positioning part, 5. Main positioning block, 51. First positioning block, 52. Second positioning block, 6. Main positioning pin, 7. Hood assembly positioning block, 71. First assembly positioning block, 72. Second assembly positioning block, 73. Fixing part with holes, 74. Limiting hole, 75. First limiting groove, 76. Second limiting groove, 8. Hood positioning pin, 81. Positioning pin body, 82. Handle, A. Upper outer panel of the front bulkhead, B. Fender, C. Hood. 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 an automobile hood is disclosed, such as... Figure 1-7 As shown, the device includes a main body 1 and a positioning part and an anti-rollover clamp 2 disposed on the main body 1. The positioning part includes a main positioning part 3 and an engine hood assembly positioning part 4, which ensures the precision and accuracy of the assembly of the car engine hood.

[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 upper panel A, fender B, and hood C of the front of the car. It is welded from steel pipes 11 and perforated connectors 12. Specifically, the perforated connectors 12 are plate-shaped with several holes. There are four steel pipes 11. The lower first steel pipe 111 and the second steel pipe 112 are located on the same horizontal plane, and the upper third steel pipe 113 and the fourth steel pipe 114 are arranged vertically and connected by the perforated connectors 12 to form a spatial frame. Among them, the first steel pipe 111 is located on the lower front side of the positioning device, the second steel pipe 112 is located on the lower rear side of the positioning device, the third steel pipe 113 is located on the top rear side of the positioning device, and the fourth steel pipe 114 is located on the upper front side of the positioning device. The line connecting the cross sections of the third steel pipe 113 and the fourth steel pipe 114 forms an angle with the vertical line, and the angle is 10°-20°. In this embodiment, the angle between the line connecting the cross sections of the third steel pipe 113 and the fourth steel pipe 114 and the vertical line is set to 15°.

[0019] It should be noted that, in order to ensure the stability of the device body 1, a supporting steel pipe 13 is provided between the second steel pipe 112 and the third steel pipe 113 for connection. Two supporting steel pipes 13 are provided, which are respectively connected at the one-quarter and three-quarter positions of the second steel pipe 112 and the third steel pipe 113.

[0020] The main positioning part 3 comprises two sets, which are symmetrically arranged with reference to the vertical center line of the device body 1 and located at both ends of the lower part of the device body 1, corresponding to the inner plate of the fender B for positioning; each set of main positioning parts 3 includes: The main positioning block 5 includes two parts: the first positioning block 51 is located below the front of the two lower steel pipes 11, and the second positioning block 52 is located below the two lower steel pipes 11. The first positioning block 51 and the second positioning block 52 are in contact with the profile of the inner plate of the fender B. Specifically, the first positioning block 51 is located on the front side of the end of the first steel pipe 111, facing downward, and the second positioning block 52 is located between the ends of the first steel pipe 111 and the second steel pipe 112, facing downward.

[0021] The main positioning pin 6 is located at the lower part of the first positioning block 51 and faces the lower part of the device body 1, corresponding to the positioning hole of the fender, and is used to be inserted into the positioning hole of the fender B for positioning.

[0022] The hood mounting and positioning part 4 includes two sets, which are symmetrically arranged with reference to the vertical center line of the device body 1 and located at both ends of the upper part of the device body 1, corresponding to the hood C for positioning; each set of hood mounting and positioning parts 4 includes: The hood mounting positioning block 7 includes two parts: a first mounting positioning block 71 located on the upper part of the two upper steel pipes 11, and a second mounting positioning block 72 located on the lower part of the two upper steel pipes 11, connected by a perforated fastener 73. The first mounting positioning block 71 and the second mounting positioning block 72 are in contact with the hood C. Specifically, the perforated fastener 73 is a plate-shaped part with several holes, including two parts, which are respectively connected to the sides of the first mounting positioning block 71 and the second mounting positioning block 72. The first mounting positioning block 71 is located on the upper part of the perforated fastener 73, and the second mounting positioning block 72 is located on the lower part of the perforated fastener 73. At the same time, the middle part of the two perforated fasteners 73 is fixed to the ends of the third steel pipe 113 and the fourth steel pipe 114.

[0023] The hood positioning pin 8 is mounted on the first mounting positioning block 71 and faces the front of the device body 1, corresponding to the positioning hole of the hood C. Specifically, the hood positioning pin 8 includes a positioning pin body 81 and a handle 82. A through hole is opened on the first mounting positioning block 71, the positioning pin body 81 is inserted into the through hole, and is pulled and limited along the through hole. The aforementioned perforated fastener 73 has a limiting hole 74 at the position corresponding to the hood positioning pin 8. The limiting hole 74 includes a first limiting groove 75 and a second limiting groove 76. The first limiting groove 75 and the second limiting groove 76 are connected on one side and separated on the other side. The handle 82 is inserted into the limiting hole 74, and the state of the positioning pin body 81 (working state, non-working state) is changed on the connected side. The handle 82 is positioned by the separation. Figure 5 As shown.

[0024] It should be noted that the working state of the positioning pin 81 is that the positioning pin 81 protrudes from the first assembly positioning block 71 and the handle 82 is located in the second limiting groove 76. The non-working state is that the positioning pin 81 retracts into the first assembly positioning block 71 and the handle 82 is located in the first limiting groove 75.

[0025] An anti-rollover clamp 2 is installed at the lower part of the device body 1, corresponding to the profile of the upper outer plate A of the front enclosure. At least one anti-rollover clamp 2 is provided, located at the front of the two lower steel pipes 11, including a rotating handle 21 and a clamping part 22. The clamping part 22 faces upward and contacts the profile of the upper outer plate A of the front enclosure. Specifically, in this embodiment, two anti-rollover clamps 2 are provided, respectively located inside the main positioning part 3. The rotating handle 21 is hinged to the lower front side of the first steel pipe 111 via a fixing frame 23. The clamping part 22 is hinged to the rotating handle 21. By rotating the rotating handle 21, the clamping and releasing of the clamping part 22 is achieved. Figure 3As shown, the anti-rollover clamp 2 contacts the profile of the outer front panel A, enabling the positioning device to be stably and reliably positioned with the left and right fenders B.

[0026] like Figure 6-7 As shown, in the process of using the positioning device of this utility model, firstly, the main positioning block 5 is brought into contact with the surface of the car fender B and the inner panel of the fender B. Then, the main positioning pin 6 is inserted into the corresponding positioning holes of the left and right fenders B respectively. Then, the anti-rollover clamp 2 on the device body 1 is rotated to contact the surface of the outer panel A of the front bulkhead, so that the positioning device is positioned with the left and right fenders B. Then, the hood C is placed on the positioning device, so that the hood C is in contact with the hood assembly positioning block 7. Then, the hood positioning pin 8 is inserted into the corresponding positioning hole on the hood C, so that the hood C is positioned with the device body 1. The car hood hinge is pushed so that the hinge is in contact with the hood assembly surface. The assembly bolts are tightened. Finally, the hood assembly positioning pin 8 is pulled out and the positioning device is taken out, thus completing the hood positioning and assembly work.

[0027] Figure 7 In the diagram, R represents the right side of the car in conjunction with the positioning device, and L represents the left side of the car in conjunction with the positioning device.

[0028] The above content discloses the engine hood assembly and positioning device of this utility model. Compared with the prior art, this utility model has the following advantages: 1. The main body of the device of this utility model is welded from steel pipe and perforated connector, which is a lightweight structure that meets the requirements of use and is easy to handle; 2. The main positioning part and the engine hood assembly positioning part of this utility model cooperate with the anti-rollover clamp to ensure that the position and dimensions of the engine hood assembly meet the assembly accuracy requirements. 3. The positioning device of this utility model accurately and effectively controls the assembly dimensions of the engine hood, ensuring product quality, shortening the product assembly cycle, and reducing investment in process equipment.

[0029] 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 an automobile hood, characterized in that, include: The main body of the device is a spatial frame that matches the shape of the outer panel of the front bulkhead, fender, and hood of the car. It is made of steel pipes and perforated connectors welded together. The main positioning part includes two sets, which are symmetrically arranged with reference to the vertical center line of the device body and located at both ends of the lower part of the device body, corresponding to the inner panel of the fender for positioning. The hood mounting and positioning part includes two sets, which are symmetrically arranged with reference to the vertical center line of the device body and located at both ends of the upper part of the device body to position the hood. The anti-rollover clamp is located at the bottom of the device body, corresponding to the profile of the outer front panel.

2. The positioning device for assembling an automobile hood according to claim 1, characterized in that: The perforated connector is a plate with several holes. Four steel pipes are installed, with the bottom two on the same horizontal plane and the top two vertically connected to form a spatial frame.

3. A positioning device for assembling an automobile hood according to claim 2, characterized in that: Each main positioning unit includes: The main positioning block includes two parts. The first positioning block is located below the front of the two lower steel pipes, and the second positioning block is located below the space between the two lower steel pipes. The first positioning block and the second positioning block are in contact with the profile of the inner panel of the fender. The main positioning pin is located at the lower part of the first positioning block and faces the lower part of the device body, corresponding to the positioning hole of the fender.

4. A positioning device for assembling an automobile hood according to claim 2, characterized in that: Each set of hood mounting and positioning parts includes: The hood mounting positioning block includes two parts. The first mounting positioning block is located on the upper part of the two upper steel pipes, and the second mounting positioning block is located on the lower part of the two upper steel pipes. They are connected by a fastener with holes, and the first mounting positioning block and the second mounting positioning block are in contact with the hood. The hood positioning pin is set on the first mounting positioning block and faces the front of the device body, corresponding to the positioning hole of the hood.

5. A positioning device for assembling an automobile hood according to claim 4, characterized in that: Two perforated fasteners are provided, which are respectively connected to the two sides of the first assembly positioning block and the second assembly positioning block, and limit holes are opened at the positions of the corresponding hood positioning pins.

6. A positioning device for assembling an automobile hood according to claim 5, characterized in that: The hood positioning pin includes a positioning pin body and a handle. The handle is inserted into a limiting hole, which includes a first limiting groove and a second limiting groove. The first limiting groove and the second limiting groove are connected on one side and separated on the other side.

7. A positioning device for assembling an automobile hood according to claim 2, characterized in that: At least one anti-rollover clamp is provided, located at the front of the two lower steel pipes, including a rotating handle and a clamping part, with the clamping part facing upward and in contact with the profile of the upper outer panel of the front enclosure.

Images