Self-adaptive adjustment opening inspection auxiliary tool

Abstract

The utility model discloses a self-adaptive installation and adjustment opening inspection auxiliary tool which comprises a profiling plate (1) arranged on the surface of an automobile body metal plate, a magnetic attraction seat (2) attached to the surface of the automobile body metal plate is arranged on the profiling plate (1), and a fixing structure for fixing the profiling plate (1) is arranged on the profiling plate (1). The fixing structure comprises a sleeve (3) arranged on the profiling plate (1) and a positioning pin (4) inserted into a metal plate hole of a vehicle body; the positioning pin (4) is inserted into a car body metal plate hole, the magnetic attraction base (2) is attracted to a car door metal plate, the abutting face of the profiling plate (1) is made to be tightly attached to the edge covering contour of a front car door, the profiling plate (1) is pressed, the structure of the opening auxiliary tool and a car body is checked, the overall installation complexity is simplified, and the detection efficiency is improved. In addition, due to the fact that the two annular magnets are installed in the profiling plate (1) in a threaded connection mode to form the magnetic attraction base (2), the automobile door metal plate can be effectively prevented from being scratched in the operation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to an adaptive opening inspection auxiliary tool. Background Art

[0002] At present, the scale of automobile production in the automobile manufacturing industry is constantly expanding. In order to control the matching quality of the white body door cover after welding, the welding adjustment line usually develops fixtures to assemble the opening and closing parts assembly to ensure that the body frame meets the delivery standards at the off-line inspection point. The fixtures of the hood and the front door are independent of each other in the assembly matching dimension chain. For plastic fenders that are assembled during final assembly, it is easy to cause matching defects between the fenders and the surrounding environmental parts.

[0003] Traditional manufacturers often adjust the hood and front door fixtures multiple times before mass production based on the matching conditions of the vehicles coming off the assembly line to ensure that most fenders meet the DTS of the vehicle's appearance after assembly. However, due to the fluctuation of part sizes within a certain range, a small number of vehicles coming off the assembly line still need to be adjusted by loosening the hood hinge bolts, which damages the paint on the bolts and wastes rework time.

[0004] Patent No. 201621100692.8, published on April 12, 2017, discloses a vehicle door adjustment tool and structure. The tool comprises a contour block having a first contour surface and a second contour surface; and a mounting plate fixedly connected to the contour block for mounting the contour block within the vehicle door frame. The shape of the first contour surface matches the shape of the door frame to be installed, and the shape of the second contour surface matches the shape of the corresponding door at its location. This application eliminates the need for manual adjustment of internal clearance and external flushness during door adjustment, reducing work complexity and improving efficiency. The tool and structure are simple in design and relatively low in cost. This flexible and lightweight door adjustment tool ensures that the flushness between the door and the vehicle body meets the designed adjustment requirements while also maintaining the internal clearance within the vehicle frame within the designed range, preventing leaks from the door frame.

[0005] In the existing technology, there is no special auxiliary tool developed. The bonnet and front door are assembled by independent fixtures during welding and adjustment. There is usually a certain time lag from the time the vehicle rolls off the welding line to the plastic fender assembly station on the final assembly line. This cannot be completed at the welding adjustment line, which easily leads to defective vehicles flowing out to the final assembly workshop, seriously restricting the improvement of production efficiency. Fixed opening inspection auxiliary tools also have certain opening inspection functions. However, because the fixed inspection tools are individually assembled on the body-in-white frame and are not related to the relative spatial position of the front door and fender, they cannot absorb the cumulative errors caused by the side panels, front doors, and assembly and adjustment, resulting in distorted inspection results. This is not conducive to technicians' timely monitoring of measurement data, analysis of defect causes, and effective improvement. The composite bonnet fixture can theoretically design two sets of cantilever inspection mechanisms on the fixture to assist in monitoring the relative spatial position of the bonnet and fender. However, due to the large X-axis spatial span, the fixture size and structure design is complex, and the weight exceeds the design requirements, affecting the convenience of operators. Therefore, this solution is rarely adopted in the industry. Utility Model Content

[0006] The utility model aims to provide an adaptive opening inspection auxiliary tool which is easy to use and does not cause damage to the sheet metal of a vehicle body.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an adaptive assembly and adjustment opening inspection auxiliary tool, including a contour plate arranged on the surface of the body sheet metal, the contour plate is provided with a magnetic seat that fits the surface of the body sheet metal, the contour plate is provided with a fixing structure for fixing the contour plate, and the fixing structure is a sleeve arranged on the contour plate and a positioning pin inserted in the hole of the body sheet metal.

[0008] A clamping claw that is engaged with a hole in the body sheet metal is provided in the positioning pin, and a control structure for controlling the opening and closing of the clamping claw is provided in the sleeve.

[0009] The control structure includes a connecting plate arranged in the sleeve and connected to the claw, a rotating shaft is provided between the end of the connecting plate and the sleeve, a rotating seat tightly attached to the rotating shaft is provided outside the sleeve, and a connecting rod for controlling the opening and closing of the connecting plate is provided between the rotating seat and the connecting plate.

[0010] The sleeve is provided with a slide groove, the rotating shaft is arranged in the slide groove, the connecting plate is provided with a crescent groove, the connecting rod is arranged in the crescent groove, and the end of the crescent groove close to the rotating shaft is inclined toward the inner wall of the sleeve.

[0011] A pear-shaped block is provided on the rotating seat, and the pear-shaped block is fitted with the rotating shaft.

[0012] An ejection spring is provided between the rotating shaft and the inner wall of the sleeve.

[0013] A tightening boss is provided in the clamping claw on the side close to the vehicle door.

[0014] A rotating handle is provided on the rotating seat.

[0015] A handle and an observation window are provided on the contoured plate.

[0016] A pin seat is provided between the sleeve and the positioning pin, and an adjusting gasket is provided on the pin seat.

[0017] The technical effects of the utility model are as follows: 1. It can effectively solve the problem that after the fender material is changed to plastic, the process is shifted to the later stage, resulting in the inability to effectively monitor and avoid subsequent assembly defects before the welded vehicle rolls off the production line, thereby avoiding the outflow of batch defective products and a large amount of wasted rework time;

[0018] 2. The design of the clamping claws and adjustment gaskets can absorb some of the deviations caused by the fluctuation of the body frame accuracy, making the detection results of the opening inspection aids more reliable;

[0019] 3. The previously independent front door assembly dimension chain and bonnet assembly dimension chain can be associated to ensure the correct relative spatial position of the bonnet assembly and the resulting opening size meets the assembly requirements of the subsequent fender assembly.

[0020] 4. The structure is compact and lightweight, with dimensions of only 300mm*175mm*280mm in length, width and height, and a total weight of less than 2.35KG. It is easy and efficient to use, and only requires "1 look, 2 alignment, 3 suction, 4 pressing" to complete the assembly with the car body, and the repeatability is high;

[0021] 5. It has a certain degree of versatility and can be used for both long-wheelbase and short-wheelbase models (same bonnet assembly, different front door assemblies). The opening inspection fixture can be used to formulate the welding vehicle off-line standards, so that the workstation can be completed and defects can be avoided. At the same time, it can also guide the timely adaptation and adjustment of the bonnet fixture on the welding adjustment line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] This manual includes the following drawings, which show the following contents:

[0023] Figure 1 This is a structural diagram of an adaptive opening inspection auxiliary device of the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of a clamping claw of an adaptive opening inspection auxiliary tool;

[0025] Figure 3 for Figure 1 A schematic diagram of a connection plate of an adaptive assembly and opening inspection auxiliary tool;

[0026] Figure 4 for Figure 1A schematic diagram of a pear-shaped block of an adaptive opening inspection auxiliary tool;

[0027] Figure 5 for Figure 1 Schematic diagram of the assembly of the profiling plate and vehicle body of an adaptive opening inspection auxiliary tool.

[0028] The markings in the figure are: 1. Contour plate; 2. Magnetic seat; 3. Sleeve; 4. Locating pin; 5. Claw; 6. Connecting plate; 7. Rotating shaft; 8. Rotating seat; 9. Connecting rod; 10. Slide; 11. Crescent groove; 12. Pear-shaped block; 13. Ejection spring; 14. Tensioning boss; 15. Turning handle; 16. Handle; 17. Observation window; 18. Pin seat; 19. Adjusting gasket. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the present invention and to facilitate its implementation.

[0030] See also Figure 1-5 , an adaptive adjustment opening inspection aid, comprising a profiling plate 1 arranged on the surface of a car body sheet metal, a magnetic seat 2 that fits the surface of the car body sheet metal is provided on the profiling plate 1, and a fixing structure for fixing the profiling plate 1 is provided on the profiling plate 1, and the fixing structure is a sleeve 3 arranged on the profiling plate 1 and a positioning pin 4 inserted into the hole of the car body sheet metal; by inserting the positioning pin 4 into the hole of the car body sheet metal, the magnetic seat 2 is adsorbed on the car door sheet metal, so that the abutting surface of the profiling plate 1 is close to the edging contour of the front car door, and the profiling plate 1 is pressed tightly to complete the structure of the inspection opening aid and the car body, simplifying the overall installation complexity, and because two annular magnetic suctions are installed in the profiling plate 1 by screw connection to form the magnetic seat 2, the annular magnetic suction size diameter-thickness-center hole diameter specification is φ20 0 -0.5 -5-5 After installation, it is 0.2mm lower into the mounting seat, which can effectively avoid scratches on the door sheet metal during operation.

[0031] The positioning pin 4 is provided with a claw 5 which is clamped in the hole of the body sheet metal. The sleeve 3 is provided with a control structure for controlling the opening and closing of the claw 5. The claw 5 is made of 40Cr steel with a hardness not less than HRC45. The claw 5 is quenched and tempered and blackened. Its thickness is 3.8 +0.5 0mm, the locating pin 4 is fixed in the hole of the body sheet metal by using the claw 5 to fix the locating pin 4, so as to achieve the purpose of fixing the profiling plate 1 without causing damage to the body sheet metal. The locating pin 4 adopts a structure with slots on both sides, and the claw 5 can move freely in the slot. When the claw 5 is separated, it is completely retracted within the slot width. The overall width of the claw 5 group when retracted is less than the diameter of the locating pin 4.

[0032] The control structure includes a connecting plate 6 connected to the claw 5 and arranged inside the sleeve 3. A rotating shaft 7 is provided between the end of the connecting plate 6 and the sleeve 3. A rotating seat 8 is provided outside the sleeve 3 and is in close contact with the rotating shaft 7. A connecting rod 9 for controlling the opening and closing of the connecting plate 6 is provided between the rotating seat 8 and the connecting plate 6. The inner diameter of the sleeve 3 is φ19. +0.2 0mm, the wall thickness is 5mm, the connecting plate 6 can be rotated in the sleeve 3 through the rotating shaft 7, and a safety gap of 2mm is always maintained between the connecting plate 6 and the inner wall of the sleeve 3 during the opening and closing process to ensure smooth operation without jamming. The drilling rotation of the rotating seat 8 is used to control the position of the rotating shaft 7, thereby pushing the connecting plate 6 to move relative to the connecting rod 9, so that the connecting rod 9 is used to realize the control of the opening and closing of the connecting plate 6.

[0033] A slide groove 10 is provided on the sleeve 3, the rotating shaft 7 is arranged in the slide groove 10, a crescent groove 11 is provided on the connecting plate 6, and the connecting rod 9 is arranged in the crescent groove 11. The end of the crescent groove 11 close to the rotating shaft 7 is inclined toward the inner wall of the sleeve 3; the two connecting plates 6 are provided with crescent grooves 11 in opposite directions. When the connecting plate 6 moves relative to the connecting rod 9, the connecting rod 9 moves along the crescent groove 11, thereby controlling the opening and closing of the connecting plate 6.

[0034] A pear-shaped block 12 is provided on the rotating seat 8 , and the pear-shaped block 12 fits with the rotating shaft 7 ; when the pear-shaped block 12 rotates, it can push the rotating shaft 7 to move, thereby controlling the movement of the connecting plate 6 .

[0035] An ejection spring 13 is provided between the rotating shaft 7 and the inner wall of the sleeve 3 ; the presence of the ejection spring 13 allows the rotating shaft 7 to always be in close contact with the surface of the pear-shaped block 12 , so that the position of the rotating shaft 7 can be controlled by the pear-shaped block 12 .

[0036] A tensioning boss 14 is provided in the clamping claw 5 on the side close to the vehicle door; through the interaction between the tensioning boss 14 and the edge of the sheet metal hole, a force in the opposite direction of the vehicle front is always applied to the opening inspection auxiliary tool, so that the two abutting surfaces on the contour plate 1 are always adaptively in contact with the edge contour of the front vehicle door.

[0037] A rotating handle 15 is provided on the rotating seat 8 to facilitate the rotation of the rotating seat 8.

[0038] The profiling plate 1 is provided with a handle 16 and an observation window 17 ; the handle 16 is convenient for operation, and the observation window 17 allows the situation at the rear side of the profiling plate 1 to be observed at all times.

[0039] A pin seat 18 is provided between the sleeve 3 and the locating pin 4, and an adjusting gasket 19 is provided on the pin seat 18; a set of connecting flanges are processed at the end of the sleeve 3, and three sets of internal threads are designed at 120° intervals along the circumference of the flange, which are used to connect with the pin seat 18 with three corresponding through holes. A 2mm adjustment gasket is designed axially between the flange at the end of the sleeve 3 and the pin seat 18, which can be used to absorb the cumulative error of the body sheet metal welding.

[0040] The technical effects of the utility model are as follows: 1. It can effectively solve the problem that after the fender material is changed to plastic, the process is shifted to the later stage, resulting in the inability to effectively monitor and avoid subsequent assembly defects before the welded vehicle rolls off the production line, thereby avoiding the outflow of batch defective products and a large amount of wasted rework time;

[0041] 2. The design of the claw 5 and the adjusting gasket 19 can absorb some of the deviations caused by the fluctuation of the accuracy of the vehicle body frame, making the detection results of the opening inspection aid more reliable;

[0042] 3. The previously independent front door assembly dimension chain and bonnet assembly dimension chain can be associated to ensure the correct relative spatial position of the bonnet assembly and the resulting opening size meets the assembly requirements of the subsequent fender assembly.

[0043] 4. The structure is compact and lightweight, with dimensions of only 300mm*175mm*280mm in length, width and height, and a total weight of less than 2.35KG. It is easy and efficient to use, and only requires "1 look, 2 alignment, 3 suction, 4 pressing" to complete the assembly with the car body, and the repeatability is high;

[0044] 5. It has a certain degree of versatility. It can be used for long-wheelbase and short-wheelbase models with the same hood assembly but different front door assemblies. The opening inspection fixture can be used to formulate the welding vehicle off-line standards, so that the workstation can be completed to avoid batch outflow of defects. At the same time, it can also guide the timely adaptation and adjustment of the hood fixture on the welding adjustment line.

[0045] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. An adaptive opening inspection aid, characterized by: The invention comprises a profiling plate (1) arranged on the surface of the body sheet metal, the profiling plate (1) being provided with a magnetic seat (2) which is in contact with the body sheet metal surface, the profiling plate (1) being provided with a fixing structure for fixing the profiling plate (1), the fixing structure being a sleeve (3) arranged on the profiling plate (1) and a positioning pin (4) inserted into a hole in the body sheet metal.

2. The self-adaptive opening inspection aid according to claim 1, characterized in that: A clamping claw (5) that is clamped in a hole in the body sheet metal is provided in the positioning pin (4), and a control structure for controlling the opening and closing of the clamping claw (5) is provided in the sleeve (3).

3. The self-adaptive opening inspection aid according to claim 2, characterized in that: The control structure comprises a connecting plate (6) arranged in the sleeve (3) and connected to the claw (5); a rotating shaft (7) is provided between the end of the connecting plate (6) and the sleeve (3); a rotating seat (8) is provided outside the sleeve (3) and is in close contact with the rotating shaft (7); and a connecting rod (9) for controlling the opening and closing of the connecting plate (6) is provided between the rotating seat (8) and the connecting plate (6).

4. The self-adaptive opening inspection aid according to claim 3, characterized in that: The sleeve (3) is provided with a slide groove (10), the rotating shaft (7) is arranged in the slide groove (10), the connecting plate (6) is provided with a crescent groove (11), the connecting rod (9) is arranged in the crescent groove (11), and the end of the crescent groove (11) close to the rotating shaft (7) is inclined toward the inner wall of the sleeve (3).

5. The self-adaptive opening inspection aid according to claim 3, characterized in that: A pear-shaped block (12) is provided on the rotating seat (8), and the pear-shaped block (12) is fitted with the rotating shaft (7).

6. The self-adaptive opening inspection aid according to claim 4, characterized in that: An ejection spring (13) is provided between the rotating shaft (7) and the inner wall of the sleeve (3).

7. The self-adaptive opening inspection aid according to claim 2, characterized in that: A tightening boss (14) is provided in the claw (5) on the side close to the vehicle door.

8. The self-adaptive opening inspection aid according to claim 3, characterized in that: A rotating handle (15) is provided on the rotating seat (8).

9. The self-adaptive opening inspection aid according to claim 1, characterized in that: The profiling plate (1) is provided with a handle (16) and an observation window (17).

10. The self-adaptive opening inspection aid according to claim 1, characterized in that: A pin seat (18) is provided between the sleeve (3) and the positioning pin (4), and an adjusting washer (19) is provided on the pin seat (18).

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