A positioning device for assembling a front mask frame of an automobile
Patent Information
- Application Number
- CN202521923475.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-08
AI Technical Summary
[0004]某轻型商用车前面罩框的装配，前期虽采用装配定位装置来控制位置精度，但因定位装置本体其自身的定位基准选取不当、零部件制造精度等因素影响，导致前面罩框装配后，前面罩框与翼子板相对位置不稳定，使得前面罩框上前大灯装配固定点与翼子板上前大灯装配定位点有偏差，汽车前大灯不好装配、灯与周边件缝隙不均及型面不吻合等品质缺陷的长期存在，只能通过大量的装配调整以及线下返工返修处理来解决
本实用新型提供了一种用于汽车前面罩框装配的定位装置，包括装置本体、主定位块、主定位销、辅定位销、辅定位块、前面罩框装配定位块、前面罩框装配主定位插销、前面罩框装配辅定位插销、前面罩框装配垫片，通过钢管与带孔连接件焊接形成装置本体，轻量化结构，便于拿取；主定位块配合主定位销、辅定位销进行左右翼子板的定位，前面罩框装配定位块配合前面罩框装配主定位插销、前面罩框装配辅定位插销进行前面罩框的定位，结构简单便于操作；该定位装置准确有效对前面罩框位置尺寸控制，保证前面罩框相对翼子板、引擎盖的位置精度，缩短产品装配周期，且经济实用，降低对工艺设备的投资。
Smart Images
Figure CN224715119U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of assembly design technology, specifically relating to a positioning device for assembling a car front cover frame. 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 front hood frame requires precise assembly. Its relative positional relationship with the left and right fenders must be accurate and stable to ensure that the headlight assembly positioning points and fixing points formed by the front hood frame and fenders are accurate and stable. This, in turn, ensures the precise relative positional relationship between the headlight boundary contour and surface and the fenders and hood.
[0004] In the initial assembly of the front cover frame of a certain light commercial vehicle, although an assembly positioning device was used to control the positional accuracy, factors such as improper selection of the positioning reference of the positioning device itself and the manufacturing precision of the parts caused the relative position of the front cover frame and the fender to be unstable after assembly. This resulted in a deviation between the headlight assembly fixing point on the front cover frame and the headlight assembly positioning point on the fender. The long-term existence of quality defects such as difficulty in assembling the headlights, uneven gaps between the lights and surrounding parts, and mismatch of the surfaces could only be solved by a large number of assembly adjustments and offline rework and repair.
[0005] The accurate and stable positioning of the front hood frame with the left and right fenders is essential to ensure that the positional relationship between the headlight mounting points and the fenders and hood (GD&T) meets design requirements, thereby achieving the desired 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 utility model is to design a positioning device for assembling a car front cover frame, thereby solving the problem of rapid assembly and positioning of the car front cover frame, meeting the accuracy requirements for headlight assembly, ensuring that the headlights meet the specified requirements after assembly, and 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 a car front grille frame, comprising: The main body of the device is a spatial skeleton that matches the shape of the front cover frame and fenders, and is welded together from steel pipes and perforated connectors; The main positioning blocks include two, which are respectively set at both ends of the upper part of the device body and contact the reference surface on the fender; The main positioning pin and the auxiliary positioning pin are respectively set on the main positioning block and face the fender, corresponding to the positioning holes of the left and right fenders; The auxiliary positioning blocks include two, which are respectively set at both ends of the lower part of the device body and contact the profile of the end reinforcing plates of the left and right floor longitudinal beams; The front cover frame assembly positioning blocks include four: the first assembly positioning block and the second assembly positioning block are located at both ends of the lower part of the device body and inside the auxiliary positioning block; the third assembly positioning block and the fourth assembly positioning block are located at the lower part of the device body; and the first assembly positioning block, the second assembly positioning block, the third assembly positioning block and the fourth assembly positioning block are all in contact with the front cover frame. The main positioning pin and the auxiliary positioning pin of the front cover frame are respectively set on the third and fourth assembly positioning blocks and face the front cover frame, corresponding to the positioning holes of the front cover frame. The front cover frame is fitted with a gasket, which is placed in the gap between the front cover frame and the inner panels of the left and right fenders, and the reinforcing plates of the left and right floor longitudinal beams.
[0008] As a further description of this utility model, the perforated connector is configured as a plate with several holes, including two pieces, which are located at both ends of the device body respectively. Both perforated connectors have two bends that match the front cover frame.
[0009] As a further description of this utility model, four steel pipes are provided, each connected between two perforated connectors; The two ends of the four steel pipes are respectively connected to the two ends of the perforated connector and the two corner points, forming a spatial skeleton that matches the shape of the car's front cover frame and fenders.
[0010] As a further description of this utility model, the third assembly positioning block and the fourth assembly positioning block are respectively connected to the device body through a fixing frame, and are symmetrically arranged with the vertical center line of the device body as the reference.
[0011] As a further description of this utility model, the fixing frame includes a connecting plate and a fixing plate. The connecting plate is vertically connected to the upper part of the lower steel pipe, and the fixing plate is fixed to the connecting plate and located above the lowermost steel pipe.
[0012] As a further description of this utility model, two connecting plates are provided, each of which is plate-shaped with several holes and vertically connected to the steel pipe. A fixing plate is connected between the two parallel connecting plates and is flush with the surface of the connecting plates.
[0013] As a further description of this utility model, the main positioning pin and the auxiliary positioning pin of the front cover frame are respectively set perpendicular to the fixing plate and correspond to the positioning holes of the front cover frame.
[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 a car front hood frame, including a device body, a main positioning block, a main positioning pin, an auxiliary positioning pin, an auxiliary positioning block, a front hood frame assembly positioning block, a front hood frame assembly main positioning pin, a front hood frame assembly auxiliary positioning pin, and a front hood frame assembly gasket. 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, in conjunction with the main and auxiliary positioning pins, positions the left and right fenders. The front hood frame assembly positioning block, in conjunction with the front hood frame assembly main and auxiliary positioning pins, positions the front hood frame. The structure is simple and easy to operate. This positioning device accurately and effectively controls the positional dimensions of the front hood frame, ensuring the positional accuracy of the front hood frame relative to the fenders and hood, 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 plan view of the perforated connector structure of this utility model; Figure 3 This is a structural view of the main positioning block and the auxiliary positioning pin of this utility model. Figure 4 This is a structural view of the auxiliary positioning block of this utility model; Figure 5 This utility model provides a structural view of the front cover frame assembly positioning block, which mates with the front cover frame assembly main positioning pin and the front cover frame assembly auxiliary positioning pin. Figure 6 This is a schematic diagram illustrating the application of the positioning device of this utility model.
[0016] In the diagram, 1. Device body, 11. Steel pipe, 12. Connector with holes, 2. Main positioning block, 3. Main positioning pin, 4. Auxiliary positioning pin, 5. Auxiliary positioning block, 6. Front cover frame assembly positioning block, 61. First assembly positioning block, 62. Second assembly positioning block, 63. Third assembly positioning block, 64. Fourth assembly positioning block, 65. Fixing bracket, 66. Connecting plate, 67. Fixing plate, 7. Front cover frame assembly main positioning pin, 8. Front cover frame assembly auxiliary positioning pin, 9. Front cover frame assembly gasket, A. Front cover frame, 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 a car front grille frame is disclosed, such as... Figure 1-6 As shown, the device includes a main body 1, a main positioning block 2, a main positioning pin 3, an auxiliary positioning pin 4, an auxiliary positioning block 5, a front cover frame assembly positioning block 6, a front cover frame assembly main positioning pin 7, a front cover frame assembly auxiliary positioning pin 8, and a front cover frame assembly gasket 9. The main positioning block 2, main positioning pin 3, auxiliary positioning pin 4, auxiliary positioning block 5, front cover frame assembly positioning block 6, front cover frame assembly main positioning pin 7, and front cover frame assembly auxiliary positioning pin 8 are arranged on the main body 1. Together with the front cover frame assembly gasket 9, they can accurately and effectively control the positional dimensions of the front cover frame A, ensuring the positional accuracy of the front cover frame A relative to the fender B and the 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: This is a spatial frame that matches the shape of the front hood frame A and fender B, welded together from steel pipes 11 and perforated connectors 12. The perforated connectors 12 are plate-shaped with several holes, including two pipes located at both ends of the device body 1; each of the two perforated connectors 12 has two bends that match the shape of the front hood frame A. Four steel pipes 11 are provided, connected between the two perforated connectors 12; the ends of the four steel pipes 11 are respectively connected to the ends of the perforated connectors 12 and the two bends, forming a spatial frame that matches the shape of the front hood frame A and fender B; ensuring the precision and rigidity of the device body, while being lightweight and easy to handle.
[0019] It should be noted that the bending angle of the perforated connector 12, and the length of the line segment into which the perforated connector 12 is divided by the bending angle, are selected according to different vehicle models. For the same vehicle model, the values are fixed and are specifically matched with the body parts.
[0020] Main positioning blocks 2: Two blocks are provided, located at both ends of the upper part of the device body 1, and contact the reference surface on the fender B. Main positioning pins 3 and 4: These are respectively located on the main positioning blocks 2, facing the fender B, and corresponding to the positioning holes on the left and right fenders B. In use, the main positioning pins 3 and 4 are inserted into the corresponding positioning holes on the left and right fenders B. Auxiliary positioning blocks 5: Two blocks are provided, located at both ends of the lower part of the device body 1, and contact the surface of the reinforcing plates at the ends of the left and right floor longitudinal beams. In use, these blocks ensure stable and reliable positioning of the positioning device with the left and right fenders B.
[0021] The front cover frame assembly positioning blocks 6 include four blocks: the first assembly positioning block 61 and the second assembly positioning block 62 are located at both ends of the lower part of the device body 1 and are located inside the auxiliary positioning block 5, arranged symmetrically; the third assembly positioning block 63 and the fourth assembly positioning block 64 are located at the lower part of the device body 1; and the first assembly positioning block 61, the second assembly positioning block 62, the third assembly positioning block 63, and the fourth assembly positioning block 64 are all in contact with the front cover frame A; the front cover frame assembly main positioning pin 7 and the front cover frame assembly auxiliary positioning pin 8 are respectively located on the third assembly positioning block 63 and the fourth assembly positioning block 64, facing the front cover frame A and corresponding to the positioning hole of the front cover frame A; in use, the front cover frame assembly main positioning pin 7 and the front cover frame assembly auxiliary positioning pin 8 are respectively inserted into the positioning hole of the front cover frame A, so that the assembly position of the front cover frame A is accurately positioned.
[0022] In this embodiment, the third assembly positioning block 63 and the fourth assembly positioning block 64 are respectively connected to the device body 1 through the fixing frame 65, and are symmetrically arranged with the vertical center line of the device body 1 as the reference. Specifically, the fixing frame 65 includes a connecting plate 66 and a fixing plate 67. The connecting plate 66 is vertically connected to the upper part of the lower steel pipe 11, and the fixing plate 67 is fixed to the connecting plate 66 and located above the lowermost steel pipe 11. More specifically, in this embodiment, two connecting plates 66 are provided, each set as a plate with several holes. Fixing holes are provided at both ends of the connecting plates 66. The connecting plates 66 pass through the fixing holes and are vertically connected between the two lowermost steel pipes 11 of the device body 1. The fixing plate 67 is fixedly connected between the two parallel connecting plates 66 and is flush with the surface of the connecting plates 66. The main positioning pin 7 and the auxiliary positioning pin 8 of the front cover frame are respectively set perpendicular to the fixing plate 67 and correspond to the positioning holes of the front cover frame A.
[0023] Front hood frame assembly shim 9: Set in the gap between the front hood frame A and the inner plates of the left and right fenders B, and the reinforcing plates of the left and right floor longitudinal beams; used to ensure the assembly accuracy of the front hood frame A and the accurate and stable relative positional relationship of the left and right fenders B. During use, different specifications of shims are selected as needed according to different gaps.
[0024] like Figure 6As shown, during the use of the positioning device of this utility model, the main positioning block 2 of the device body 1 is first brought into contact with the reference surface on the fender of the car, and then the main positioning pin 3 and the auxiliary positioning pin 4 are respectively inserted into the corresponding positioning holes on the fender. Then, the auxiliary positioning block 5 is brought into contact with the surface of the front upper panel, so that the positioning device is positioned with the left and right fenders of the car. Then, place the front cover frame on the positioning device 1, so that the front cover frame contacts the front cover frame positioning blocks 6 (first assembly positioning block 61, second assembly positioning block 62, third assembly positioning block 63, and fourth assembly positioning block 64). Then, insert the front cover frame assembly main positioning pin 7 and the front cover frame assembly auxiliary positioning pin 8 into the corresponding positioning holes on the front cover frame, so that the front cover frame is positioned with the device body 1. According to the actual gap value between the front cover frame and the inner panels of the left and right fenders and the reinforcing plates of the left and right floor longitudinal beams, select the front cover frame assembly shim 9 to fill the gap, tighten the assembly bolts, and finally pull out the front cover frame assembly main positioning pin 7 and the front cover frame assembly auxiliary positioning pin 8, and take out the positioning device, thus completing the positioning and assembly work of the car front cover frame.
[0025] The above content discloses the front cover frame 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 block of this utility model, together with the main positioning pin and the auxiliary positioning pin, positions the left and right fenders. The front cover frame is equipped with a positioning block, together with the main positioning pin and the auxiliary positioning pin, to position the front cover frame. The structure is simple and easy to operate. 3. The positioning device of this utility model accurately and effectively controls the position and size of the front cover frame, ensuring the positional accuracy of the front cover frame relative to the fender and hood, shortening the product assembly cycle, and reducing investment in process equipment.
[0026] 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 a car front cover frame, characterized in that, include: The main body of the device is a spatial skeleton that matches the shape of the front cover frame and fenders, and is welded together from steel pipes and perforated connectors; The main positioning blocks include two, which are respectively set at both ends of the upper part of the device body and contact the reference surface on the fender; The main positioning pin and the auxiliary positioning pin are respectively set on the main positioning block and face the fender, corresponding to the positioning holes of the left and right fenders; The auxiliary positioning blocks include two, which are respectively set at both ends of the lower part of the device body and contact the profile of the end reinforcing plates of the left and right floor longitudinal beams; The front cover frame assembly positioning blocks include four: the first assembly positioning block and the second assembly positioning block are located at both ends of the lower part of the device body and inside the auxiliary positioning block; the third assembly positioning block and the fourth assembly positioning block are located at the lower part of the device body; and the first assembly positioning block, the second assembly positioning block, the third assembly positioning block and the fourth assembly positioning block are all in contact with the front cover frame. The main positioning pin and the auxiliary positioning pin of the front cover frame are respectively set on the third and fourth assembly positioning blocks and face the front cover frame, corresponding to the positioning holes of the front cover frame. The front cover frame is fitted with a gasket, which is placed in the gap between the front cover frame and the inner panels of the left and right fenders, and the reinforcing plates of the left and right floor longitudinal beams.
2. The positioning device for assembling a car front cover frame according to claim 1, characterized in that: The perforated connector is configured as a plate with several holes, including two pieces, located at both ends of the device body respectively; Both perforated connectors have two bends that match the front cover frame.
3. A positioning device for assembling a car front cover frame according to claim 2, characterized in that: Four steel pipes are installed, each connected between two perforated connectors; The two ends of the four steel pipes are respectively connected to the two ends of the perforated connector and the two corner points, forming a spatial skeleton that matches the shape of the car's front cover frame and fenders.
4. A positioning device for assembling a car front cover frame according to claim 1, characterized in that: The third and fourth assembly positioning blocks are connected to the device body through a fixing frame and are symmetrically arranged with the vertical center line of the device body as the reference.
5. A positioning device for assembling a car front cover frame according to claim 4, characterized in that: The fixing frame includes a connecting plate and a fixing plate. The connecting plate is vertically connected to the upper part of the lower steel pipe, and the fixing plate is fixed to the connecting plate and located above the lowermost steel pipe.
6. A positioning device for assembling a car front cover frame according to claim 5, characterized in that: The connecting plate consists of two plates, each with several holes, which are vertically connected to the steel pipe. The fixing plate is connected between the two parallel connecting plates and is flush with the surface of the connecting plates.
7. A positioning device for assembling a car front cover frame according to claim 5, characterized in that: The main positioning pin and the auxiliary positioning pin of the front cover frame are respectively set perpendicular to the fixing plate and correspond to the positioning holes of the front cover frame.