A hood and fender gap adjusting device

Abstract

The application discloses a hood and wing assembly gap adjusting device, which comprises a positioning block, an adjusting block is arranged on the side of the positioning block, a limiting block is arranged at the end of the adjusting block, and a locking mechanism is arranged below the positioning block.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile assembly, in particular, the present application relates to a gap adjusting device for fender and hood assembly. BACKGROUND

[0002] The gap difference between the whole vehicle hood and fender belongs to the high sensitive area of the whole vehicle appearance perception, and the better appearance gap difference can reflect the lean manufacturing of the whole vehicle, improve the appearance quality, and thus increase the market recognition.

[0003] The existing technology mainly adopts two schemes of plug adjustment and tool assembly. If plug adjustment is adopted, the operation is complex, the gap state needs to be confirmed when the hood is closed, and then the fender position is adjusted by the worker's feeling when the hood is opened. This adjustment method generally needs 1-3 times of adjustment to complete, causing the loss of production rhythm. If ordinary tool assembly is adopted, the structure is heavy, the relative tolerance of the fender and the hood is affected, the size chain is long, and the one-time qualified rate of the gap assembly between the hood and the fender is not high, and the repair adjustment increases the production line rhythm.

[0004] The utility model patent with publication number CN203712638U discloses a fender and hood gap and step difference quick adjustment auxiliary device on July 16, 2014, which comprises a buffer block, an adjusting nut and a connecting rod. The connecting rod is provided with external threads, and the bottom end of the connecting rod is threadedly connected to the front beam of the vehicle body. The adjusting nut is threadedly connected to the connecting rod, and the buffer block is arranged on the end face of one end of the connecting rod. The fender and hood gap and step difference quick adjustment auxiliary device cannot solve the technical problems described above. SUMMARY

[0005] The present application aims at the deficiencies of the prior art, and provides a fender and hood gap adjusting device which is simple to operate, ensures the installation of the hood and the fender, and improves the production efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The fender and hood gap adjusting device comprises a positioning block, an adjusting block is arranged on the side of the positioning block, a limiting block is arranged at the end of the adjusting block, and a locking mechanism is arranged below the positioning block.

[0008] One end of the adjusting block is fixedly connected with a sliding shaft, the sliding shaft penetrates through the positioning block, the locking mechanism comprises a pull rod, one end of the pull rod is provided with a center, the bottom end of the positioning block is provided with a connecting hole, the center is threadedly connected with the connecting hole in the side, and the top end of the center is located below the sliding shaft.

[0009] The limiting block is arranged at the end of the adjusting block away from the positioning block, the end of the adjusting block close to the positioning block is L-shaped structure, the limiting block is T-shaped structure, the upper end surface of the adjusting block is provided with a positioning groove, and the top end of the limiting block is located at one side of the positioning groove.

[0010] The reset spring is sleeved on the sliding shaft, and the two ends of the reset spring are fixedly connected with the positioning block and the adjusting block respectively.

[0011] The positioning block comprises a first positioning block and a second positioning block, first and second positioning faces are arranged at the top and bottom of one end of the first positioning block respectively, a fixed block is fixedly connected to one side of the second positioning block, and a third positioning face is arranged at the bottom of the fixed block, and the first and second positioning faces are magnetic structures.

[0012] The first positioning block is provided with a first positioning pin at the bottom, and the second positioning block is provided with a second positioning pin at the bottom, and the first positioning pin is higher than the second positioning pin.

[0013] The first positioning block is provided with an auxiliary limiting block on one side, and the auxiliary limiting block is U-shaped structure.

[0014] The positioning groove is provided with a guide surface on one side, and the guide surface is inclined structure.

[0015] The sliding shaft is arranged in pairs.

[0016] The technical effect of the present application is that: the gap adjusting device for the fender assembly of the fender is used, the locking of the adjusting block is realized by using the pull rod, the position adjustment of the adjusting block relative to the fender is realized, the Y direction reference for the fender assembly process is provided, and the cooperation of the multiple positioning structures is realized, the accurate positioning and position stability of the device on the vehicle body are ensured, so that the gap difference between the fender and the fender is consistent, which is beneficial to improve the appearance quality; compared with the operation mode of the traditional technology using gap plug or complex tooling, the operation process is more simple and convenient, the size chain is effectively shortened, only the contour of the fender and the fender is controlled, the fender can be installed in place at one time, the repair rate is reduced, the qualified rate is improved, and the production rhythm of the production line is met. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present specification includes the following drawings, and the shown contents are as follows:

[0018] Figure 1 It is the structure schematic view of the gap adjusting device for the fender assembly of the fender of the present application;

[0019] Figure 2 It is the front view of the gap adjusting device for the fender assembly of the fender of the present application;

[0020] Figure 3is the top view of the fender gap adjusting device of the application;

[0021] Figures 4-1 to 4-3 is the flow chart of the fender gap adjusting device;

[0022] Figure 5 is the schematic diagram of the cooperation of the fender, the wing and the adjusting block;

[0023] Figure 6-1 and Figure 6-2 is the working schematic diagram of the pull rod.

[0024] In the figure, the marks are: 1, fender; 2, wing; 3, positioning block; 4, adjusting block; 5, limiting block; 6, positioning groove; 7, sliding shaft; 8, mounting hole; 9, return spring; 10, pull rod; 11, center; 12, connecting hole; 13, first positioning block; 14, second positioning block; 15, first positioning pin; 16, second positioning pin; 17, auxiliary limiting block; 18, fixed block; 19, guide surface; 20, auxiliary hole; 21, first positioning surface; 22, second positioning surface; 23, third positioning surface. DETAILED DESCRIPTION

[0025] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings, and the purpose is to help the technical personnel in the field to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the application, and to help them to implement it.

[0026] As Figure 1 shown, the fender gap adjusting device comprises a positioning block 3, the side of the positioning block 3 is provided with an adjusting block 4, the end of the adjusting block 4 is provided with a limiting block 5, and the lower part of the positioning block 3 is provided with a locking mechanism. The positioning block 3 is used to position the whole device on the vehicle body, and can provide a positioning basis for subsequent operation. The limiting block 5 can simultaneously position the fender 1 and the wing 2. The adjusting block 4 is fixed in position by the locking mechanism, so that its position is fixed relative to the fender 1, thereby providing a positioning reference surface for the installation of the wing 2.

[0027] As Figures 1 to 6-2As shown, the adjusting block 4 is fixedly connected with a sliding shaft 7 at one end, the sliding shaft 7 penetrates through the positioning block 3, the locking mechanism comprises a pull rod 10, the pull rod 10 is provided with a top pin 11 at one end, the positioning block 3 is provided with a connecting hole 12 at the bottom end, the top pin 11 is threadedly connected with the connecting hole 12 at the side portion, and the top end of the top pin 11 is located below the sliding shaft 7. The above structure adopts the threaded connection of the top pin 11 and the connecting hole 12, the sliding shaft 7 is locked or moved through the rotation control of the pull rod 10, the control process is realized through the rotation of the pull rod 10, the operation process is simple and convenient, the pull rod 10 is located below the positioning block 3, is not blocked by the body beam structure or the hood 1 in space, is convenient for operation control, the end of the pull rod 10 is provided with an auxiliary hole 20, the operator can also control by means of auxiliary tools, and compared with the adjusting process of the prior art which adopts a plug block or a complex tool, the operation steps are less, the rework rate is low, the qualified rate is high, and the production rhythm of the production line is adapted. When the adjusting block 4 is in the working state, the adjusting block 4 is manually pushed to make the positioning groove 6 adhere to the hood 1, the pull rod 10 is rotated to make the top pin abut against the sliding shaft 7, the sliding shaft 7 is in the locked state, at this time, the adjusting block 4 is fixed to the correct position, at this time, the gap between the hood 1 and the fender 2 is adjusted to the appropriate position, and then the hood 1 and the fender 2 can be accurately assembled; when the adjusting block 4 is in the non-working state, that is, the top pin is in the withdrawn state, the top pin does not apply force to the sliding shaft 7, and the reset spring 9 drives the adjusting block 4 to the open state.

[0028] As shown in the figure, Figures 1 to 3 The limiting block 5 is arranged at the end of the adjusting block 4 away from the positioning block 3, the end of the adjusting block 4 close to the positioning block 3 is of L-shaped structure, the upper end surface of the adjusting block 4 is provided with a positioning groove 6, and the top end of the limiting block 5 is located at one side of the positioning groove 6. The L-shaped end of the adjusting block 4 is used for ensuring the horizontal installation precision of the adjusting block 4 and providing a horizontal basis for the positioning effect of the limiting block 5, and two mounting holes 8 are also designed for mounting the sliding shaft 7. The positioning groove 6 and the top end of the limiting block 5 are used for positioning the hood 1, and the bottom end of the limiting block 5 is used for positioning the fender 2. When the device is positioned on the vehicle body and the hood 1 is closed, the adjusting block 4 is located between the positioning surface of the hood 1 and the positioning surface of the fender 2, that is, the gap surface difference between the hood 1 and the fender 2 is adjusted to the correct position, after the adjusting block 4 is positioned by the pull rod 10, at this time, the adjusting block 4 is in the appropriate position, the limiting block 5 forms a Y-direction reference datum surface for the installation of the fender 2, so that the fender 2 is ensured to be installed in place.

[0029] As shown in the figure, Figures 1 to 6-2As shown, a return spring 9 is sleeved on the sliding shaft 7, and the two ends of the return spring 9 are respectively fixedly connected to the positioning block 3 and the adjustment block 4. The above structure limits the fixed distance between the adjustment block 4 and the positioning block 3 when the adjustment block 4 is not in operation, preventing the adjustment block 4 from separating or falling out of the positioning block 3. When the adjustment block 4 is in operation, the return spring 9 will be compressed a certain distance to meet the axial movement process of the adjustment block 4 in contact with the cover 1. When the adjustment block 4 is not in operation, the return spring 9 resets the adjustment block 4 to its initial state through its own reset action. During the above process, the sliding shaft 7 accordingly plays a horizontal supporting role for the adjustment block 4.

[0030] like Figures 1 to 3 As shown, the positioning block 3 includes a first positioning block 13 and a second positioning block 14. The first positioning block 13 has a first positioning surface 21 and a second positioning surface 22 at its top and bottom, respectively. The second positioning block 14 is fixedly connected to a fixed block 18 on one side, and a third positioning surface 23 is provided at the bottom of the fixed block 18. The first positioning surface 21 and the second positioning surface 22 are magnetic structures. The first positioning surface 21 contacts the upper end surface of the longitudinal beam on the vehicle body, the second positioning surface 22 contacts the bottom of the hood 1, and the third positioning surface 23, the first positioning surface 21 and the second positioning surface 22 use a magnetic attraction function to ensure the positioning block 3 is stable and not easily loosened, thus forming a Z-axis positioning for the device. Combined with the use of positioning pins, the positioning stability of the device on the vehicle body is guaranteed.

[0031] like Figures 1 to 3 As shown, a first locating pin 15 is provided at the bottom of the first locating block 13, and a second locating pin 16 is provided at the bottom of the second locating block 14. The first locating pin 15 is higher than the second locating pin 16. The first locating pin 15 and the second locating pin 16 are used to adapt to the locating holes of the vehicle body, limit the movement of the device in the X and Y directions, and provide a preliminary positioning effect for the device. The bottom ends of both locating pins are tapered structures, which serve as guides during positioning. The two locating pins are of different heights to meet the height difference of the upper end surface of the upper longitudinal beam.

[0032] like Figures 1 to 3 As shown, an auxiliary stopper 17 is provided on one side of the first positioning block 13. The auxiliary stopper 17 is a U-shaped structure. The auxiliary stopper 17 is designed in a U-shape, and its inner side overlaps the vehicle body beam structure, which can limit the Y direction of the device and serve as an auxiliary positioning to prevent the entire device from flipping.

[0033] like Figure 5 As shown, a guide surface 19 is provided on one side of the positioning groove 6. The guide surface 19 is an inclined structure. The structure of the positioning groove 6 is adapted to the shape of the edge of the cover 1. There is no spatial interference between the cover 1 flipping process and the movement process of the adjustment block 4, and no damage to the cover 1 is caused.

[0034] like Figure 1As shown, the sliding shafts 7 are arranged in pairs. The sliding shafts 7 pass through the positioning blocks 3 to guide the movement of the adjustment blocks 4. The sliding shafts 7 are arranged in pairs, and each adjustment block 4 is connected to two sliding shafts 7 to improve the accuracy of the movement direction of the adjustment blocks 4.

[0035] To ensure that the device is firmly positioned on the vehicle body, six degrees of freedom are used for constraint. Two locating pins are fitted on the locating holes of the longitudinal beam of the vehicle to control the X / Y direction of the device. Three locating surfaces are used to control the Z direction of the device. The first locating surface 21 and the second locating surface 22 are magnetically adsorbed on the longitudinal beam of the vehicle. The auxiliary limit block 17 serves as an auxiliary positioning to prevent the tooling from flipping over. The two adjustment blocks 4 are locked by the pull rod 10. When the adjustment block 4 is fitted and locked with the hood 1, it serves as a reference for adjusting the fender 2 in the Y direction.

[0036] like Figures 4-1 to 4-3 As shown, the operation method is as follows: After the welding adjustment line assembles the front door and the hood 1, the fender 2 is assembled; 1. Open the hood 1 and position the device on the vehicle body. Positioning method: insert the positioning pin into the positioning hole of the upper longitudinal beam of the car. The first positioning surface 21 and the second positioning surface 22 ensure support and pressing through magnetic attraction. The third positioning surface 23 is designed with a reverse pressure head to press tightly on the vehicle body. At this time, the tooling has been positioned on the vehicle body. 2. Close the hood 1 to the designed position, tighten the pull rod 10 to tighten the adjustment block 4 and the hood 1 at the gap matching position and lock it. At this time, the position of the adjustment block 4 is already in the correct position according to the status of the hood 1. 3. Open the hood 1, pre-install the fender 2 on the vehicle body, press the device on the vehicle body, manually press the fender 2 and the adjustment block 4 together, tighten the mounting nut, and now the fender 2 has been installed and is in the correct position. The device can then be removed and the hood 1 closed.

[0037] The hood and fender assembly gap adjustment device uses a pull rod 10 to lock the adjustment block 4 to achieve position adjustment of the adjustment block 4 relative to the hood 1, providing a Y-direction reference for the assembly process of the fender 2, and also ensures the accurate positioning and position stability of the device on the vehicle body through the cooperation of multiple positioning structures, thereby ensuring the consistency of the gap surface difference between the hood 1 and the fender 2, which is beneficial to improving the appearance quality; compared with the traditional technology that uses gap plugs or complex tooling, the operation process is simpler and lighter, and the size chain link is effectively shortened. It only needs to control the contours of the hood 1 and fender 2 to be qualified, and the fender 2 can be installed in place at one time, reducing the rework rate, improving the qualified rate, and meeting the production rhythm of the production line.

[0038] The application is described above with reference to the drawings. It is obvious that the specific implementation of the application is not limited to the above-mentioned manner. As long as various non-essential improvements are made by using the method concept and technical solutions of the application, or the above-mentioned concept and technical solutions of the application are directly applied to other occasions without improvement, they are all within the protection scope of the application.

Claims

1. A device for adjusting the gap between a hood and a fender, characterized by: The invention comprises a positioning block (3), an adjusting block (4) is provided on the side of the positioning block (3), a limiting block (5) is provided at the end of the adjusting block (4), and a locking mechanism is provided below the positioning block (3); one end of the adjusting block (4) is fixedly connected to a sliding shaft (7), and the sliding shaft (7) passes through the positioning block (3); the locking mechanism comprises a pull rod (10), one end of the pull rod (10) is provided with a top (11), and the bottom end of the positioning block (3) is provided with a connecting hole (12), and the top (11) The side is threadedly connected to the connecting hole (12), and the top of the tip (11) is located below the sliding shaft (7); the limit block (5) is provided at the end of the adjustment block (4) away from the positioning block (3), and the end of the adjustment block (4) close to the positioning block (3) is an L-shaped structure, and the upper end surface of the adjustment block (4) is provided with a positioning groove (6), and the top of the limit block (5) is located on one side of the positioning groove (6); a guide surface (19) is provided on one side of the positioning groove (6), and the guide surface (19) is an inclined structure.

2. The hood and fender assembly gap adjustment device according to claim 1, characterized in that: A return spring (9) is sleeved on the sliding shaft (7), and two ends of the return spring (9) are respectively fixedly connected to the positioning block (3) and the adjustment block (4).

3. The hood and fender assembly gap adjustment device according to claim 1 or 2, characterized in that: The positioning block (3) comprises a first positioning block (13) and a second positioning block (14); the first positioning block (13) is provided with a first positioning surface (21) and a second positioning surface (22) at the top and bottom of one end respectively; the second positioning block (14) is fixedly connected to a fixed block (18) at one side, and the fixed block (18) is provided with a third positioning surface (23) at the bottom; the first positioning surface (21) and the second positioning surface (22) are magnetic structures.

4. The hood and fender assembly gap adjustment device according to claim 3, characterized in that: A first positioning pin (15) is provided at the bottom of the first positioning block (13), and a second positioning pin (16) is provided at the bottom of the second positioning block (14), wherein the first positioning pin (15) is higher than the second positioning pin (16).

5. The hood and fender assembly gap adjustment device according to claim 4, characterized in that: An auxiliary limiting block (17) is provided on one side of the first positioning block (13), and the auxiliary limiting block (17) is a U-shaped structure.

6. The hood and fender assembly gap adjustment device according to claim 2, characterized in that: The sliding shafts (7) are arranged in pairs.

Images