Fender positioning fixture

Abstract

A fender positioning fixture relates to the field of vehicle manufacturing technology. The fender positioning fixture includes: a main frame; a first positioning block connected to the main frame, the first positioning block having a first positioning surface for fitting against the vehicle body in a first direction to support the main frame against the vehicle body in that first direction; the first direction being the vertical direction of the vehicle; a fender positioning pin connected to the main frame for mating with the fender; and a plug having a front door profile block, a fender profile block, and a plug piece disposed between the front door profile block and the fender profile block; wherein the plug piece is separate from the main frame. The fender positioning fixture provided in this disclosure is beneficial for improving the installation accuracy of the fender.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle manufacturing technology, and more specifically, to a positioning fixture for a fender. Background Technology

[0002] With the development of the automotive industry, the requirements for the quality of vehicle body size matching are becoming increasingly stringent. If there are large gaps and surface differences between the outer body panels and between the body and the outer body panels, it will directly affect the vehicle's appearance, sealing performance, opening and closing smoothness, and wind noise.

[0003] Currently, there is a problem with the low first-time installation success rate when installing fenders on the vehicle body. The installation precision of the fenders is insufficient, and a lot of manual adjustments are still required after the fenders are installed, which is time-consuming, labor-intensive, and affects the production cycle. Utility Model Content

[0004] This disclosure provides a positioning fixture for a fender, which helps to improve the installation accuracy of the fender.

[0005] The positioning fixture for the fender includes:

[0006] Main framework;

[0007] A first positioning block is connected to the main frame. The first positioning block has a first positioning surface, which is used to fit against the vehicle body in a first direction to support the main frame against the vehicle body in the first direction; the first direction is the vertical direction of the vehicle.

[0008] Fender locating pins are connected to the main frame and are used to mate with the fenders.

[0009] The plug has a front door profile block, a fender profile block, and a plug piece disposed between the front door profile block and the fender profile block;

[0010] The plug block is separate from the main frame.

[0011] In one exemplary embodiment of this disclosure, the front door contour block has a front door contour surface to match the front door; the fender contour block has a fender contour surface to match the fender.

[0012] The front door contoured surface has a first adsorption part for adsorbing onto the front door; the fender contoured surface has a second adsorption part for adsorbing onto the fender.

[0013] In one exemplary embodiment of this disclosure, a fender positioning pin is used to mate with a sliding positioning portion on the fender; wherein, the sliding positioning portion includes an oblong hole along a second direction; the fender positioning pin is along a first direction and is used to slide with the oblong hole along the second direction; the second direction is the longitudinal direction of the vehicle.

[0014] In one exemplary embodiment of this disclosure, the positioning fixture for the fender includes at least one pair of first positioning pins connected to the main frame; each pair of first positioning pins is arranged opposite to each other along a third direction, which is the left-right direction of the vehicle.

[0015] In one exemplary embodiment of this disclosure, the positioning fixture for the fender includes a support end, a first positioning pin disposed on the support end, and the support end also has a support block; the support block has a support groove along a second direction, the support groove being recessed into the surface of the support block at least in the first direction and a third direction;

[0016] The support end is movably set along a third direction; the first positioning pin moves synchronously with the support block.

[0017] In one exemplary embodiment of this disclosure, the positioning fixture for the fender includes at least two second positioning blocks connected to the main frame; the second positioning blocks have second positioning surfaces for abutting against the fender in a third direction, which is the left-right direction of the vehicle.

[0018] In one exemplary embodiment of this disclosure, a second positioning block is disposed at the end of the guide rod, and the guide rod is slidably connected to the main frame in a third direction.

[0019] In one exemplary embodiment of this disclosure, the main frame has a fork-shaped bracket, and a slider is movably connected between the two forks of the fork-shaped bracket; the slider has a groove along a first direction, and a guide rod passes through the two forks of the fork-shaped bracket and the groove along a third direction;

[0020] Along the first direction, the thickness of at least a portion of the slider is variable along the third direction.

[0021] In one exemplary embodiment of this disclosure, the positioning fixture for the fender includes a first contour block connected to the main frame; the first contour block has a first contour surface for matching with the fender along a first direction.

[0022] In one exemplary embodiment of this disclosure, a first contour block is movably disposed on the main frame along a first direction; the first contour surface has a third adsorption portion for adsorbing onto the fender.

[0023] In one exemplary embodiment of this disclosure, the first contour block is arranged in pairs along a third direction; the first contour block is provided in at least two pairs along a second direction.

[0024] In one exemplary embodiment of this disclosure, the positioning fixture for the fender further includes a guide pin, which is connected to the main frame and is arranged along a first direction; the guide pin is used to insert into a guide hole on the vehicle body along the first direction.

[0025] In one exemplary embodiment of this disclosure, the positioning fixture for the fender further includes a clamp connected to the main frame. The clamp opens under the drive of a drive mechanism to clamp the vehicle body.

[0026] In one exemplary embodiment of this disclosure, the chuck includes a first positioning block and a gripper; the gripper moves relative to the first positioning block in a first direction under the drive of the drive mechanism to open the chuck and clamp the vehicle body between the first positioning block and the gripper.

[0027] The fender positioning fixture disclosed herein can be used for positioning and assembling fenders. Positioning the fender independently via the main frame and the stop block improves the positioning and installation accuracy of the fender. Furthermore, since the stop block is separate from the main frame, it can directly restrict the matching and positioning relationship between the front door and the fender, thus shortening the fender's positioning dimensional chain and further improving the positioning and installation accuracy of the fender.

[0028] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0030] Figure 1 This is a schematic diagram from a first-view perspective of an exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0031] Figure 2 This is a schematic diagram of a plug block in an exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0032] Figure 3 This is a schematic diagram of the clamp in one exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0033] Figure 4 This is a schematic diagram of the support end in an exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0034] Figure 5 This is a schematic diagram from a second perspective of an exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0035] Figure 6 This is a schematic diagram from a third-person perspective of an exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0036] Figure 7 This is a schematic diagram illustrating the connection method between the second positioning block and the main frame in an exemplary embodiment of the positioning fixture for the fender of this disclosure.

[0037] Figure 8 This is a schematic diagram illustrating the matching of the fender positioning fixture with the fender and the front door in one exemplary embodiment of the fender positioning fixture of this disclosure.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Front door; 200. Fender;

[0040] 1. Main frame; 11. Fork foot; 12. Slider; 121. Slide groove;

[0041] 21. First positioning block; 22. Fender positioning pin; 23. First positioning pin; 231. Support block; 232. Support groove; 24. Second positioning block; 241. Second positioning surface; 242. Guide rod; 25. First contour block; 251. First contour surface; 26. Guide pin; 27. Chuck; 271. Gripper; 28. Second positioning pin;

[0042] 3. Plug; 31. Front door contour block; 311. Front door contour surface; 312. First suction unit; 32. Fender contour block; 321. Fender contour surface; 322. Second suction unit; 33. Plug piece;

[0043] 41. Lifting ring; 5. Front door positioning block. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0045] Unless otherwise specified or stated, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “a,” “an,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “comprising” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to those listed; the terms “first” and “second” are used only as illustrative marks and are not intended to limit the number, importance, or order of the objects.

[0046] The terms “connection” and “fixed” should be interpreted broadly. For example, unless otherwise specified or stated, “connection” can be a fixed connection, a movable connection, an integral connection, or a detachable connection. It can be a direct connection or an indirect connection through an intermediate medium.

[0047] The phrase "part A is located on part B" as described in this disclosure can mean that part A is directly connected to part B, or that part A is located on part C, and part C is located on part B.

[0048] In the description of this disclosure, it should be understood that directional terms such as "up" and "down" are used only to indicate relative positional relationships. For example, for convenience, they are defined based on the actual position and state of the vehicle during operation. It should be understood that these directional terms are relative concepts and can change accordingly depending on the orientation of the components in the accompanying drawings. For example, in the description of this disclosure, using the vehicle coordinate system as a reference coordinate system, the first direction is defined as the vertical direction of the vehicle (Z-direction), the second direction is the forward / backward direction of the vehicle (X-direction), and the third direction is the left / right direction of the vehicle (Y-direction).

[0049] This disclosure provides a positioning fixture for a fender, comprising: a main frame 1, a first positioning block 21, a fender positioning pin 22, and a plug 3. The first positioning block 21 is connected to the main frame 1 and has a first positioning surface for fitting against the vehicle body in a first direction to support the main frame 1 against the vehicle body in the first direction; the first direction is the vertical direction of the vehicle. The fender positioning pin 22 is connected to the main frame 1 and is used to match the fender 200. The plug 3 has a front door contour block 31, a fender contour block 32, and a plug 33 disposed between the front door contour block 31 and the fender contour block 32; wherein, the plug 3 is separate from the main frame 1.

[0050] The fender positioning fixture disclosed herein can be used for positioning and assembling the fender 200. (Reference) Figure 1As shown, the bottom surface of the first positioning block 21 forms a first positioning surface. When installing the fender 200, the main frame 1 can be vertically lowered along the Z-direction onto the vehicle body via the first positioning surface. The first positioning surface can position the main frame 1 along the Z-direction and allow the vehicle body to support the positioning fixture, thus achieving the matching positioning of the main frame 1 and the vehicle body. The fender 200 is connected to the main frame 1 via the fender positioning pin 22, achieving the matching between the fender 200 and the main frame 1. After the main frame 1 is installed on the vehicle body and the fender 200 is installed on the main frame 1, the fender 200 can be further positioned using the insert block 3. Specifically, the plug 3 can be matched with the front door 100 through the front door contour block 31, and with the fender 200 through the fender contour block 32. The plug 33 is inserted into the gap between the fender 200 and the front door 100 to control the gap between the fender 200 and the front door 100, thereby realizing the matching and positioning relationship between the front door 100 and the fender 200.

[0051] The fender positioning fixture disclosed herein can independently position the fender 200 using the main frame 1 and the plug 3, which helps to improve the positioning and installation accuracy of the fender 200. Moreover, since the plug 3 is separate from the main frame 1, the plug 3 can directly restrict the matching and positioning relationship between the front door 100 and the fender 200, thus shortening the positioning dimension chain of the fender 200 and further improving the positioning and installation accuracy of the fender 200.

[0052] refer to Figure 2 A schematic diagram of the plug 3 is shown. In an exemplary embodiment of this disclosure, the front door contour block 31 has a front door contour surface 311 to match the front door 100. The fender contour block 32 has a fender contour surface 321 to match the fender 200. The front door contour surface 311 has a first adsorption portion 312 to adsorb onto the front door 100; the fender contour surface 321 has a second adsorption portion 322 to adsorb onto the fender 200.

[0053] For example, the first adsorption part 312 may include a magnet, or a device such as a vacuum generator that can achieve the bonding and fixation of the front door contour surface 311 with the surface of the front door 100; the second adsorption part 322 may include a magnet, or a device such as a vacuum generator that can achieve the bonding and fixation of the fender contour surface 321 with the surface of the fender 200. By matching the front door contour surface 311 and the fender contour surface 321 with the front door 100 and the fender 200 respectively, the surface difference between the fender 200 and the front door 100 can be controlled.

[0054] For example, refer to Figure 2 As shown, the plug 33 is detachably mounted on the plug block 3, so that the thickness and angle of the plug 33 can be changed by replacing the plug 33, thereby adjusting the gap between the fender 200 and the front door 100.

[0055] In one exemplary embodiment of this disclosure, reference is made to Figure 8 This diagram illustrates the matching of the positioning fixture for the fender of this disclosure with the fender 200 and the front door 100. Multiple stop blocks 3 can be provided along a gap between the fender 200 and the front door 100, each used to control the matching and positioning relationship between the front door 100 and the fender 200 at different positions. For example, refer to... Figure 1 As shown, two plugs 3 are provided along a gap between the fender 200 and the front door 100. These plugs are installed at the upper gap surface difference matching point and the middle gap surface difference matching point of the fender 200 and the front door 100, respectively, to control the gap and surface difference between the fender 200 and the front door 100 as a whole. Depending on their location, the plugs 3 can be front door contour block 31, fender contour block 32, or plug piece 33 with different shapes.

[0056] The positioning fixture for the fender may also include the front door positioning block 5, see reference. Figure 1 As shown, the front door positioning block 5 is separate from the main frame 1 and the plug block 3, and can independently position the fender 200. One end of the front door positioning block 5 can be positioned on the positioning hole and profile of the lower part of the front door 100, and the other end has a front door positioning part that matches the side shape of the front door 100, which can control the gap and surface difference between the fender 200 and the lower part of the front door 100.

[0057] In one exemplary embodiment of this disclosure, a lifting ring 41 is provided at the top of the main frame 1, and multiple lifting rings 41 may be provided at the top of the main frame 1 along the X and Y directions. For example, refer to Figure 1 as well as Figure 5 As shown, when installing the fender 200, the main frame 1 can be lifted into the air by the lifting ring 41. When the vehicle body moves to the installation position, the main frame 1 is then lowered vertically along the Z direction so that it contacts the vehicle body.

[0058] In one exemplary embodiment of this disclosure, the positioning fixture for the fender further includes a clamp 27 connected to the main frame 1. The clamp 27 can open under the drive of the drive mechanism to clamp the vehicle body.

[0059] For example, Figure 3 This diagram shows a partial view of the positioning fixture for the fender, for reference. Figure 3As shown, the chuck 27 may include a first positioning block 21 and grippers 271. Driven by a drive mechanism, the grippers 271 move relative to the first positioning block 21 along the Z-direction to open the chuck 27, clamping the vehicle body between the first positioning block 21 and the grippers 271. Specifically, after the positioning fixture is vertically lowered along the Z-direction until the first positioning block 21 supports the vehicle body, the grippers 271 can move downwards along the Z-direction to cooperate with the first positioning block 21 in clamping the vehicle body. For example, the grippers 271 can be driven pneumatically or hydraulically, and the grippers 271 and the first positioning block 21 can respectively clamp the front longitudinal beams of the vehicle body at the lower and upper sides in the Z-direction to fix the main frame 1 to the vehicle body.

[0060] In one exemplary embodiment of this disclosure, the fender positioning pin 22 is used to mate with a sliding positioning part on the fender 200, wherein the sliding positioning part includes an oblong hole along the X direction; the fender positioning pin 22 is along the Z direction and is used to slide in the X direction with the oblong hole on the sliding positioning part. In this exemplary embodiment, by positioning the fender positioning pin 22 with the oblong hole on the fender 200 along the X direction, the X-direction freedom of movement can be ensured in the matching section between the fender 200 and the front hood of the vehicle body. By using the plug 3 between the fender 200 and the front door 100 to control the X-direction position of the fender 200, the positioning dimension chain between the fender 200 and the front door 100 can be shortened, and the positioning is more flexible. For example, the fender positioning pins 22 are arranged in pairs in the Y direction; or, for example, two pairs of fender positioning pins 22 are provided in the X direction, which are respectively used to match the front side of the fender 200 to control the front Y direction position of the fender 200, and to match the rear side of the fender 200 to control the rear Y direction position of the fender 200.

[0061] In one exemplary embodiment of this disclosure, the fender positioning fixture includes a second positioning pin 28, connected to the main frame 1, for mating with the vehicle body. (See reference...) Figure 4 , showed Figure 1 A partial schematic diagram of region A viewed from front to back along the X direction. The second positioning pin 28 is set along the Z direction. In some embodiments, the second positioning pin 28 can be symmetrically set on both sides of the main frame 1 in the Y direction (left and right).

[0062] In one exemplary embodiment of this disclosure, the fender positioning fixture includes a guide pin 26. (See reference...) Figure 3 , Figure 4 As shown, guide pin 26 is connected to main frame 1 and is set along the Z direction; guide pin 26 is used to insert into guide hole on vehicle body along Z direction. During the process of vertically lowering positioning fixture along Z direction to the first positioning surface and onto vehicle body, guide pin 26 can guide the lowering of main frame 1, so that positioning fixture falls accurately and manual adjustment is reduced.

[0063] In some embodiments, the guide pins 26 can be symmetrically arranged on both sides of the main frame 1 in the Y direction (left and right), as shown in the reference. Figure 4 As shown. The guide pin 26 and the second positioning pin 28 can be arranged adjacent to each other, see reference. Figure 4 As shown. Exemplarily, the guide hole on the vehicle body to which the guide pin 26 mates and the sliding positioning part on the vehicle body to which the second positioning pin 28 mates are both located on the shock absorber tower die casting of the vehicle body.

[0064] In one exemplary embodiment of this disclosure, the fender positioning fixture includes at least one pair of first positioning pins 23, which are connected to the main frame 1; each pair of first positioning pins 23 is disposed opposite to each other along the Y direction. (See reference...) Figure 4 As shown, the first positioning pin 23 can limit the position of the fender 200 in the Z direction. When positioning the fender 200, by inserting the first positioning pin 23 into the corresponding positioning hole on the fender 200 along the Y direction, the position of the fender 200 can be limited in the Z direction, preventing the fender 200 from shaking. For example, if the fender 200 is large in size, complex in shape, and has relatively low rigidity compared to the vehicle body, some embodiments of this disclosure can maintain the accurate posture of the fender 200 during installation by providing support and positioning along the Z direction and limiting its height in the Z direction in the horizontal plane, which is beneficial to improving installation accuracy.

[0065] refer to Figure 4 As shown, exemplarily, the positioning fixture for the fender includes a support end. A first positioning pin 23 is disposed on the support end, and the support end also has a support block 231; the support block 231 has a support groove 232 along the X direction. The support groove 232 is recessed into the surface of the support block 231 at least in the Z and Y directions, thereby supporting the fender 200 within the support groove 232 and stabilizing the position and orientation of the fender 200.

[0066] In some exemplary embodiments, the support end is movably disposed along the Y direction. (See reference...) Figure 4 As shown, the first positioning pin 23 and the support block 231 can move synchronously. After the main frame 1 is lowered and supported on the vehicle body, the support end can be translated along the Y direction under the power of hydraulic cylinder, pneumatic cylinder, electric motor or manual operation, inserting the first positioning pin 23 into the corresponding positioning hole on the fender 200 along the Y direction. At the same time, the side of the fender 200 can slide into the support groove 232 of the support block 231 along the Y direction. The support block 231 can provide auxiliary support for the fender 200 along the Y direction, which is conducive to maintaining the attitude of the fender 200 and to the uniform force on the fender 200, thus preventing the fender 200 from deforming during assembly.

[0067] Multiple support ends can be provided in the X direction, for example, as shown in the reference. Figure 1As shown, two support ends are provided along the X-direction, respectively for matching the front and rear sides of the fender 200. The support ends can also be provided in pairs along the Y-direction, for example, referring to... Figure 4 As shown, the support end corresponds one-to-one with the first positioning pin 23.

[0068] In one exemplary embodiment of this disclosure, the fender positioning fixture includes at least two second positioning blocks 24, which are connected to the main frame 1. (See reference...) Figures 5 to 7 As shown, Figure 5 This diagram shows a top view of a positioning fixture for the fender. Figure 6 This diagram shows a side view of a positioning fixture for the fender. Figure 7 A schematic diagram illustrating the connection between the second positioning block 24 and the main frame 1 is shown. The second positioning block 24 has a second positioning surface 241, which abuts against the fender 200 in the Y direction. Exemplarily, multiple second positioning blocks 24 are provided along the X direction. When assembling the fender 200 with the vehicle body, the multiple second positioning surfaces 241 can abut against the inner surface of the fender 200, providing a Y-direction reference for the fender 200 profile. Simultaneously, the second positioning block 24 can also be used to detect the Y-direction accuracy of the fender 200 profile. During detection, the second positioning surface 241 is brought as close as possible to the inner surface of the fender 200, the gap between the fender 200 profile and the second positioning surface 241 is detected, and the difference is compared with a standard gap value, thus achieving the Y-direction detection of the fender 200 profile.

[0069] For example, the second positioning block 24 can be located on one or both sides of the main frame 1 in the Y direction. For example, refer to Figure 5 As shown, the second positioning blocks 24 are arranged in pairs, and the second positioning surfaces 241 of the pair of second positioning blocks 24 can respectively abut against the inner surfaces of the two sides of the fender 200.

[0070] In one exemplary embodiment of this disclosure, reference is made to Figure 7 As shown, the second positioning block 24 is located at the end of the guide rod 242, which is slidably connected to the main frame 1 along the Y direction. For example, the main frame 1 has a fork-shaped bracket, and a slider 12 is movably connected between the two fork legs 11 of the fork-shaped bracket; the slider 12 has a groove 121 along the Z direction, and the guide rod 242 passes through the two fork legs 11 and the groove 121 along the Y direction. The thickness of the slider 12 is variable in the Z direction.

[0071] For example, at least a portion of the thickness of the slider 12 varies uniformly in the Z direction, for example... Figure 7 The thickness increases from bottom to top as shown. During the sliding of slider 12 along the Z-axis, the movable range of the second positioning block 24 in the Y-axis changes. Specifically, when slider 12... Figure 7As shown, when the slider 12 is slid to its lowest position, with the guide rod 242 at the top of the slide groove 121, the thickness of the slider 12 between the two forks 11 is at its maximum, and the range of motion of the second positioning block 24 is at its minimum. When the slider 12 is slid to its lowest position, with the guide rod 242 at the bottom of the slide groove 121, the thickness of the slider 12 between the two forks 11 is at its minimum, and the range of motion of the second positioning block 24 is expanded.

[0072] In one embodiment, the thickness difference between the thickest and thinnest parts of the slider 12 is 3 mm. For example, the top thickness of the slider 12 is 8 mm and the bottom thickness is 5 mm. When the slider 12 slides down to the bottom, it is in positioning mode, where the second positioning surface 241 abuts against the inner side of the fender 200, providing a Y-axis reference for the fender 200 profile. When the slider 12 slides up to the top, it is in detection mode, providing a reference for measuring the gap between the fender 200 profile and the second positioning block 24. In both modes, the thickness difference of the slider 12 is the theoretical gap value between the second positioning block 24 and the fender 200 profile.

[0073] In one exemplary embodiment of this disclosure, the fender positioning fixture includes a first contour block 25 connected to the main frame 1; the first contour block 25 has a first contour surface 251 for mating with the fender 200 along the Z-direction. (Reference) Figure 4 , Figure 6 As shown, the bottom of the first contour block 25 has a first contour surface 251, and the shape of the first contour surface 251 is contoured to the surface design of the corresponding part of the top of the fender 200. During the process of installing the positioning fixture of the fender onto the vehicle body and matching it with the fender 200, the first contour surface 251 is used to contour and position the fender 200, which is beneficial to the comprehensive control of the fender profile.

[0074] In particular, the overall surface of the fender 200 has a more complex shape and relatively lower rigidity compared to the matching parts of the body. During the installation and bolt tightening process, the position and attitude of the fender 200 are positioned and controlled by the first contour surface 251, which can overcome the assembly position fluctuation and shape deformation caused by the insufficient rigidity of the fender 200, and improve the stability and consistency of the assembly.

[0075] For example, the first contour block 25 is movably disposed on the main frame 1 along the Z direction; the first contour surface 251 has a third adsorption portion for adsorbing onto the fender 200. The third adsorption portion may include a magnet, or a device such as a vacuum generator that can achieve the bonding and fixation of the first contour surface 251 with the surface of the fender 200. For example, the third adsorption portion includes a magnet, which can adsorb the upper surface of the fender 200 onto the first contour surface 251 during the process of installing the positioning fixture of the fender onto the vehicle body and matching it with the fender 200.

[0076] In one exemplary embodiment of this disclosure, the first contour blocks 25 are arranged in pairs along the Y direction, with reference to... Figure 5 As shown. Exemplarily, the first contour block 25 is provided with no less than two pairs along the X direction, which are respectively used to match the front side of the fender 200 to control the front profile of the fender 200, and to match the rear side of the fender 200 to control the rear profile of the fender 200.

[0077] To further illustrate the fender positioning fixture provided in this disclosure, a possible process for assembling the fender 200 using the fender positioning fixture provided in this disclosure is provided. Specifically, this may include:

[0078] When the vehicle body moves to the installation position, operate the suspension mechanism to lower the main frame 1 from the air to above the vehicle body via the lifting ring 41, preparing to position the main frame 1 on the vehicle body.

[0079] Insert the guide pin 26 into the guide hole on the vehicle body along the Z direction. Under the guidance of the guide pin 26, continue to lower the main frame 1 until the second positioning pin 28 is fully inserted into the corresponding hole on the vehicle body, and the first positioning surface of the Z direction end face of the first positioning block 21 is placed on the vehicle body.

[0080] The gripper 271 opens the chuck 27 and clamps the car body between the first positioning block 21 and the gripper 271, thus completing the positioning of the main frame 1 and the car body.

[0081] Insert the fender positioning pin 22 into the corresponding hole on the fender 200.

[0082] Adjust the position of the second positioning block 24, slide the slider 12 down to the bottom, so that the second positioning block 24 works in positioning mode, and the inner side of the fender 200 abuts against the second positioning surface 241. The fender 200 surface fits against the first contour block 25.

[0083] The support end is driven to move along the Y direction by the telescopic cylinder, and the first positioning pin 23 is inserted into the corresponding positioning hole on the fender 200 to limit the fender 200 in the Z direction; the side of the fender 200 is supported in the support groove 232 on the support block 231.

[0084] The telescopic cylinder at the locking support end is used to lock the positions of the first positioning pin 23 and the support groove 232.

[0085] The fender contour block 32 of the plug block 3 is attached and adsorbed to the fender 200, and the front door contour block 31 is attached and adsorbed to the front door 100. The plug piece 33 forms a gap between the fender 200 and the front door 100. The front door positioning block 5 is positioned with the front door 100 through the pin hole and then adsorbed to the fender 200. The relative positional relationship between the front door 100 and the fender 200 is restricted by the front door positioning part.

[0086] Tighten the 200 bolts on the fenders according to the process sequence to complete the connection between the fenders and the body.

[0087] Remove the plug block 3 and the front door positioning block 5, open the clamp 27, and pull out the positioning pins and other positioning components between the fender positioning fixture and the body, fender 200, and front door 100; operate the suspension mechanism to raise the main frame 1 and detach it from the body.

[0088] As can be seen, the fender positioning fixture provided in this disclosure offers the advantage of convenient operation when assembling the fender 200, and can adapt to the needs of high-speed online installation. Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein.

[0089] This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A positioning fixture for a fender, characterized in that, include: Main frame (1); A first positioning block (21) is connected to the main frame (1). The first positioning block (21) has a first positioning surface. The first positioning surface is used to fit against the vehicle body along a first direction so as to support the main frame (1) against the vehicle body in the first direction. The first direction is the vertical direction of the vehicle. Fender positioning pin (22), connected to the main frame (1), for matching with the fender (200); The plug (3) has a front door contour block (31), a fender contour block (32), and a plug piece (33) disposed between the front door contour block (31) and the fender contour block (32); The plug (3) is separate from the main frame (1).

2. The positioning fixture for the fender according to claim 1, characterized in that, The front door contour block (31) has a front door contour surface (311) to match the front door (100); the fender contour block (32) has a fender contour surface (321) to match the fender (200). The front door contour surface (311) has a first adsorption part (312) for adsorbing onto the front door (100); the fender contour surface (321) has a second adsorption part (322) for adsorbing onto the fender (200).

3. The positioning fixture for the fender according to claim 1, characterized in that, The fender positioning pin (22) is used to match the sliding positioning part on the fender (200); the sliding positioning part includes an oblong hole along a second direction; the fender positioning pin (22) is along the first direction, and the fender positioning pin (22) is used to slide with the oblong hole along the second direction; the second direction is the front-rear direction of the vehicle.

4. The positioning fixture for the fender according to claim 3, characterized in that, The positioning fixture for the fender includes at least one pair of first positioning pins (23), which are connected to the main frame (1); each pair of first positioning pins (23) are arranged opposite each other along a third direction, which is the left and right direction of the vehicle.

5. The fender positioning fixture according to claim 4, characterized in that, The positioning fixture for the fender includes a support end, a first positioning pin (23) is disposed on the support end, and the support end also has a support block (231); the support block (231) has a support groove (232) along the second direction, and the support groove (232) is recessed into the surface of the support block (231) at least in the first direction and the third direction. The support end is movably disposed along the third direction; the first positioning pin (23) moves synchronously with the support block (231).

6. The positioning fixture for the fender according to claim 1, characterized in that, The positioning fixture for the fender includes at least two second positioning blocks (24), which are connected to the main frame (1). The second positioning block (24) has a second positioning surface (241) for abutting against the fender (200) in a third direction, which is the left-right direction of the vehicle.

7. The positioning fixture for the fender according to claim 6, characterized in that, The second positioning block (24) is located at the end of the guide rod (242), and the guide rod (242) is slidably connected to the main frame (1) along the third direction.

8. The fender positioning fixture according to claim 7, characterized in that, The main frame (1) has a fork-shaped bracket, and a slider (12) is movably connected between the two forks (11) of the fork-shaped bracket; the slider (12) has a groove (121) along the first direction, and the guide rod (242) passes through the two forks (11) of the fork-shaped bracket and the groove (121) along the third direction. Along the first direction, at least a portion of the thickness of the slider (12) is variable along the third direction.

9. The fender positioning fixture according to claim 1, characterized in that, The positioning fixture for the fender includes a first contour block (25), which is connected to the main frame (1); the first contour block (25) has a first contour surface (251) for matching the fender (200) along the first direction.

10. The fender positioning fixture according to claim 9, characterized in that, The first contour block (25) is movably disposed on the main frame (1) along the first direction; the first contour surface (251) has a third adsorption part to adsorb onto the fender (200).

11. The fender positioning fixture according to claim 9, characterized in that, The first contour block (25) is arranged in pairs along a third direction; the first contour block (25) is arranged in at least two pairs along a second direction, the second direction being the front-rear direction of the vehicle, and the third direction being the left-right direction of the vehicle.

12. The fender positioning fixture according to claim 1, characterized in that, The positioning fixture for the fender also includes a guide pin (26), which is connected to the main frame (1) and is arranged along the first direction; the guide pin (26) is used to insert into the guide hole on the vehicle body along the first direction.

13. The fender positioning fixture according to claim 1, characterized in that, The positioning fixture for the fender also includes a clamp (27), which is connected to the main frame (1). The clamp (27) opens under the drive of the drive mechanism to clamp the vehicle body.

14. The fender positioning fixture according to claim 13, characterized in that, The chuck (27) includes the first positioning block (21) and the gripper (271); the gripper (271) moves relative to the first positioning block (21) in a first direction under the drive of the drive mechanism to open the chuck (27) and clamp the vehicle body between the first positioning block (21) and the gripper (271).

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