Hood assembly tool and method

Abstract

The invention discloses a hood assembly tool and an assembly method. The technical problem that in the prior art, the assembly clearance surface difference of a hood in the open state is large is solved. The hood assembly tool is used for connecting a hood and a hinge installed on a vehicle body. The assembly tool comprises a tightening piece, a clamping piece and a clamping piece, the assembling frame comprises a positioning frame and an adapter piece, the positioning frame is used for positioning the hood and the vehicle body, the adapter piece is connected with the positioning frame, the adapter piece is provided with a positioning part and a transmission input part which are in transmission connection, the positioning part is used for positioning a threaded connecting piece, and the transmission input part is connected with the positioning part from bottom to top. The positioning part, the through hole of the hinge and the hinge mounting hole of the hood are coaxially and sequentially arranged, the transmission input part is used for being matched with the output end of the tightening piece, and the transmission input part is located outside the projection of the hood in the height direction. According to the hood assembly tool, bolt tightening in the closed state of a hood is achieved, and the assembly precision is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hood assembly, and particularly relates to a hood assembly tool and an assembly method. BACKGROUND

[0002] The hood design tends to be full-coverage design to highlight the atmosphere and high-grade sense of the front face, but the full-coverage hood covers insufficient space, and assembly in the closed state of the hood causes the tightening tool to be difficult to extend into the space between the hood and the vehicle body to realize the assembly of the hood.

[0003] In the related art, for the assembly of the full-coverage hood, the assembly of the hood and the vehicle body is performed in the open state of the hood, but this causes a large gap difference after the hood assembly is completed and closed, and low assembly precision. SUMMARY

[0004] To solve the technical problem of a large gap difference in the open state of the hood, the application provides a hood assembly tool and an assembly method.

[0005] In a first aspect of the application, a hood assembly tool is provided, which comprises: a tightening member for tightening a threaded connecting member to connect the hood and a hinge mounted on the vehicle body; an assembly frame comprising a positioning frame and an adapter, the positioning frame being used to position the hood and the vehicle body, the adapter being connected with the positioning frame, the adapter being provided with a positioning portion and a transmission input portion in transmission connection, the positioning portion being used to position the threaded connecting member, the positioning portion, a through hole of the hinge and a hinge mounting hole of the hood being coaxially arranged in sequence from bottom to top, the transmission input portion being used to cooperate with an output end of the tightening member, and the transmission input portion being located outside the projection of the hood along the height direction.

[0006] In some embodiments, the height of the transmission input portion is higher than that of the positioning portion.

[0007] In some embodiments, the adapter comprises a first adapter segment, a second adapter segment and a third adapter segment arranged in sequence along the power transmission direction, and the second adapter segment extends along the height direction. The transmission input portion is located in the first adapter segment, and the positioning portion is located in the third adapter segment.

[0008] In some embodiments, the third adapter segment is provided with a mounting portion, the positioning frame is provided with a matching portion, and the mounting portion and the matching portion are mounted and matched; The mounting portion and the positioning portion are arranged in sequence along the power transmission direction.

[0009] In some embodiments, the adapter further comprises a housing and a gear unit installed in the housing; The upper end of the input shaft of the input gear of the gear unit extends out of the housing, and the upper end of the input shaft constitutes the transmission input part. The upper end of the output shaft of the output gear of the gear unit extends out of the housing, and the upper end of the output shaft constitutes the positioning part. The output shaft of the output gear is in sliding connection with the toothed disc along the axial direction of the threaded connection.

[0010] In some embodiments, the toothed disc of the output gear is provided with a sliding hole which is a non-circular hole, the lower end of the output shaft extends into the sliding hole, and the upper end of the output shaft extends out of the housing.

[0011] In some embodiments, the adapter further comprises a restoring member, and the two ends of the restoring member act on the toothed disc of the output gear and the output shaft, respectively.

[0012] In some embodiments, two adapters are provided, and the two adapters are located on the two sides of the positioning frame along the width direction of the vehicle body. The transmission input part of the adapter is located at the rear end of the hood along the length direction of the vehicle body.

[0013] In some embodiments, the positioning frame is provided with a connecting arm extending away from the body of the positioning frame. The connecting arm has an included angle with the width direction of the vehicle body and an included angle with the length direction of the vehicle body. The end of the connecting arm away from the positioning frame is connected with the adapter.

[0014] In a second aspect, the application provides a method for assembling the hood assembly tool according to the first aspect. The method comprises the following steps: Step 1: connect the hinge with the vehicle body, set the threaded connection in the positioning part, position the assembly frame with the vehicle body, and then position the hood to the assembly frame. Step 2: match the output end of the tightening member with the transmission input part of the adapter, act the tightening member, screw the threaded connection into the via hole of the hinge and the hinge mounting hole of the hood, and then take away the tightening member. Step 3: open the hood, take down the assembly frame from the vehicle body, and complete the assembly of the hood.

[0015] According to the hood assembly tool provided by the embodiments of the application, the assembly frame comprises a positioning frame and an adapter. The positioning frame serves as an adapter structure to determine the relative positions of the vehicle body and the hood. Since the relative positions of the vehicle body and the hood are determined when the hood is in a closed state, the gap difference between the hood and the vehicle body can be directly observed, and the assembly precision of the hood and the vehicle body can be ensured through fine adjustment.

[0016] After the position of the hood and the vehicle body is determined, the positioning part, the through hole of the hinge and the hinge mounting hole of the hood are coaxial and arranged in sequence from bottom to top, so that the threaded connecting piece on the positioning part can directly extend into the through hole of the hinge and the hinge mounting hole of the hood after rotation, thereby realizing the connection of the hinge and the hood. The transmission input part is located outside the projection of the hood in the height direction, that is, the transmission input part protrudes outside the hood, so that the operator can conveniently connect the output end of the tightening piece with the transmission input part of the adapter, so that the tightening power can be transmitted to the adapter and then to the threaded connecting piece, thereby realizing the bolt tightening in the closed state of the hood and ensuring the assembly precision of the hood and the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure schematic diagram of the assembly tool of the present application and the hood and the vehicle body is shown.

[0018] Figure 2 The structure schematic diagram of the assembly tool of the present application is shown. Figure 1

[0019] Figure 3 Another angle structure schematic diagram of the assembly tool of the present application is shown. Figure 2

[0020] Another angle structure schematic diagram of the assembly tool of the present application is shown. Figure 4 Figure 2 Another angle structure schematic diagram of the assembly tool of the present application is shown.

[0021] Figure 5 The structure schematic diagram of the adapter and the connecting arm is shown.

[0022] Figure 6 The cross-sectional view of the adapter, the threaded connecting piece, the hinge and the hood is shown.

[0023] BRIEF DESCRIPTION OF DRAWINGS 100-tightening piece; 200-assembly frame, 210-positioning frame, 211-vehicle body main positioning pin, 212-vehicle body auxiliary positioning pin, 213-first supporting block, 214-second supporting block, 215-hood main positioning pin, 216-hood auxiliary positioning pin, 217-third supporting block, 218-fourth supporting block, 219-connecting arm; 220-adapter, 210-first adapter section, 220-second adapter section, 230-third adapter section, 240-housing, 251-toothed disc, 252-output shaft, 252a-positioning part, 253-input shaft; 253a-transmission input part, 261-recovery piece; 500-vehicle body, 600-hood; 701-hinge, 702-threaded connecting piece. DETAILED DESCRIPTION

[0024] ​​In order for those skilled in the art to which the present application pertains to more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0025] The first aspect embodiment of the present application provides a hood assembly tool, which can complete the assembly of the hood in the closed state, adjust the gap difference, and has high assembly precision.

[0026] The present application will be described below in conjunction with the accompanying drawings and specific embodiments: Please refer to Figure 1 , Figure 2 and Figure 6 The hood assembly tool provided by the embodiments of the present application includes a tightening member 100 and an assembly frame 200. The assembly frame 200 includes a positioning frame 210 and an adapter 220. The positioning frame 210 is used to realize the positioning of the hood 600 and the vehicle body 500. The adapter 220 is connected with the positioning frame 210. The adapter 220 is provided with a positioning part 252a and a transmission input part 253a which are in transmission connection. The positioning part 252a is used to position the threaded connecting member 702. The positioning part 252a, the through hole of the hinge 701 and the hinge mounting hole of the hood 600 are coaxially arranged in sequence from bottom to top. The transmission input part 253a is used to cooperate with the output end of the tightening member 100. The transmission input part 253a is located outside the projection of the hood 600 along the height direction.

[0027] The tightening member 100 can provide the tightening force of the threaded connecting member 702, so that the threaded connecting member 702 extends into the through hole of the hinge 701 and the hinge mounting hole of the vehicle body 500, and realizes the movable connection of the hood 600 and the vehicle body 500.

[0028] The assembly frame 200 includes the positioning frame 210 and the adapter 220. The positioning frame 210 can realize the positioning of the hood 600 and the vehicle body 500. That is, the positioning frame 210 is provided with a positioning structure which cooperates with the vehicle body 500, so as to accurately determine the relative position of the positioning frame 210 and the vehicle body 500. The positioning frame 210 is also provided with a positioning structure which cooperates with the hood 600, so as to accurately determine the relative position of the positioning frame 210 and the hood 600. Therefore, the positioning frame 210 realizes the relative position of the vehicle body 500 and the hood 600 as an adapter structure. Since the relative position of the vehicle body 500 and the hood 600 is determined in the closed state of the hood 600, the gap difference between the hood 600 and the vehicle body 500 can be directly observed. Through fine adjustment, the assembly precision of the hood 600 and the vehicle body 500 can be ensured.

[0029] After the position of the hood 600 and the vehicle body 500 is determined, the positioning portion 252a, the through hole of the hinge 701, and the hinge mounting hole of the hood 600 are coaxial and sequentially arranged from bottom to top, so that the threaded connecting piece 702 on the positioning portion 252a can directly extend into the through hole of the hinge 701 and the hinge mounting hole of the hood 600 after being rotated, thereby realizing the connection of the hinge 701 and the hood 600. The transmission input portion 253a is located outside the projection of the hood 600 in the height direction, that is, the transmission input portion 253a protrudes outside the hood 600, so that the operator can conveniently connect the output end of the tightening piece 100 and the transmission input portion 253a of the adapter 220, thereby transmitting the tightening power to the adapter 220 and then to the threaded connecting piece 702, realizing the bolt tightening in the closed state of the hood 600, and ensuring the assembly precision of the hood 600 and the vehicle body 500.

[0030] The hood 600 is movably connected to the vehicle body 500 through the hinge 701, so that after the threaded connecting piece 702 is tightened, the tightening piece 100 is removed, the hood 600 is opened, and the assembly frame 200 is removed, thereby completing the assembly of the hood 600 and the vehicle body 500.

[0031] The tightening piece 100 is a structure for providing tightening power, which can be an electric tightening gun or other electric tools for providing torque, thereby saving labor and time. Of course, the tightening piece 100 can also be a manual tightening tool, which is not limited in the present application.

[0032] The tightening piece 100 can include an operation section and a driving section, which are arranged at an angle. The operator can act on the operation section to support the tightening piece 100 to maintain the working state. The end of the driving section constitutes an output end and acts on the transmission input portion 253a of the adapter 220. The operation section and the driving section are arranged at an angle, which can realize non-linear power transmission, thereby saving labor and being easy to operate. In specific implementation, the operation section and the driving section can be perpendicular to each other. The power transmission structure inside the tightening piece 100 belongs to the prior art, and more details are not described herein.

[0033] The assembly frame 200 is an adapter structure for positioning the vehicle body 500 and the hood 600, thereby ensuring that the hood 600 and the vehicle body 500 have good gap surface difference. The adapter 220 in the assembly frame 200 is a structure for power adaptation. In related technologies, the adapter 220 is connected with the positioning frame 210, and the two are fixedly connected to form a whole, which serves as the positioning structure of the hood 600. Even if the power is transmitted from the tightening piece 100 to the threaded connecting piece 702 through the adapter 220 during the tightening process of the tightening machine, the vibration can be reduced, the deformation risk of each structure can be reduced, the connection strength of the hood 600 and the vehicle body 500 can be ensured, the noise can be reduced, and the working environment of the operator can be improved.

[0034] In some embodiments, referring to Figure 5 , the height of the transmission input part 253a can be higher than the positioning part 252a. In the case of the assembly frame 200, the vehicle body 500 and the hood 600 being matched, the positioning part 252a is located in the space between the hood 600 and the vehicle body, and the height of the transmission input part 253a is high, so as to avoid the structure of the vehicle body 500 and avoid the interference between the vehicle body 500 and the transmission input part 253a. In other embodiments, the height of the transmission input part 253a can also be the same as the height of the positioning part 252a, in which case, the vehicle body 500 needs to have a space for avoiding interference here, and the connection between the hood 600 and the hinge 701 can be achieved, and the gap difference between the hood 600 and the vehicle body 500 is ensured.

[0035] For the height relationship between the transmission input part 253a and the hood 600, in some embodiments, the height of the transmission input part 253a is lower than the hood 600, so as to reduce the size of the adapter 220 along the power transmission direction, reduce the occupied space, and further improve the stability during the tightening process. In other embodiments, the height of the transmission input part 253a can be higher than the hood 600, so as to facilitate the matching of the tightening part 100 and the transmission input part 253a.

[0036] Referring to Figure 5 , the adapter 220 can include a first adapter section 210, a second adapter section 220 and a third adapter section arranged in sequence along the power transmission direction, and the second adapter section extends along the height direction, so that the third adapter section and the first adapter section have different heights, the transmission input part 253a is located in the first adapter section, and the positioning part 252a is located in the third adapter section, so as to realize that the height of the transmission input part 253a is higher than the height of the positioning part 252a.

[0037] In some embodiments, the third adapter section 230 is provided with a mounting part, the positioning frame 210 is provided with a matching part, the mounting part and the matching part are matched and installed, and the mounting part and the positioning part 252a are arranged in sequence along the power transmission direction. The connection between the positioning frame 210 and the adapter 220 is realized through the mounting part of the third adapter section, so as to reduce the size of the positioning frame 210 and make the structure more compact. The mounting part and the positioning part 252a are arranged in sequence along the power transmission direction, so that they are staggered and do not interfere with each other. In other embodiments, the mounting part can also be arranged in the second adapter section, and the connection between the adapter 220 and the positioning frame 210 can still be realized.

[0038] In some embodiments, the matching part can be a matching groove, and the mounting part is located in the matching groove. The matching groove can serve as the mounting groove, and the positioning of the mounting part can be achieved, and the connection is more convenient. The matching groove can have a downward slot or a slot facing away from the positioning frame 210, and the application does not make any limitation. In other embodiments, the matching part can also be a matching hole, and the mounting part is mounted in the matching hole, and the connection between the adapter 220 and the positioning frame 210 can still be achieved.

[0039] In some embodiments, referring to Figure 5 and Figure 6 , the adapter 220 further includes a housing 240 and a gear transmission unit, the housing 240 is connected with the positioning frame 210, and the gear transmission unit is mounted in the housing 240; the upper end of the input shaft 253 of the input gear of the gear transmission unit extends out of the housing 240, and the upper end of the input shaft 253 constitutes a transmission input part 253a; the upper end of the output shaft 252 of the output gear of the gear transmission unit extends out of the housing 240, and the upper end of the output shaft 252 constitutes a positioning part 252a. The power transmission between the positioning part 252a and the transmission input part 253a is achieved through the gear transmission unit, and the stability is high. In other embodiments, a chain transmission mechanism can also be used to achieve the power transmission between the positioning part 252a and the transmission input part 253a, and the application does not make any limitation.

[0040] In some embodiments, the upper end of the input shaft 253 can be provided in a non-circular shape, such as a hexagonal shape, or a quadrangular shape, etc., and the output end of the tightening member 100 is provided with a matching positioning groove with the input shaft 253 of the adapter 220, so that when the output end of the tightening member 100 rotates, it can drive the input shaft 253 of the adapter 220 to rotate, thereby driving the positioning part 252a to rotate, and achieving the rotation of the threaded connecting piece 702. In other embodiments, the upper end of the input shaft 253 can also be provided with a positioning groove, and the output end of the tightening member 100 is non-circular and inserted into the positioning groove, and the rotation of the output end of the tightening member 100 can also drive the input shaft 253 of the adapter 220 to rotate, thereby driving the positioning part 252a to rotate, and achieving the rotation of the threaded connecting piece 702.

[0041] Similar to the input shaft 253, in some embodiments, the output shaft 252 can be provided with a positioning groove, which is non-circular, such as a hexagonal shape matched with a hexagonal nut, and can be matched with the nut of the threaded connecting piece 702. In the case of rotation of the output shaft 252, the threaded connecting piece 702 rotates, thereby achieving the connection of the threaded connecting piece 702 with the hinge 701 and the cowling 600.

[0042] In order to improve the positioning stability of the threaded connecting piece 702 and the output shaft 252, in some embodiments, the groove bottom of the positioning groove can be made of a material with magnetism, or a magnetic layer can be covered on the groove bottom of the positioning groove.

[0043] In the case of using a gear transmission unit to realize power transmission, the gear transmission unit can include four gears, namely a first gear, a second gear, a third gear, and a fourth gear, wherein the first gear can serve as an input gear, the first gear is in meshing connection with the second gear, the second gear and the third gear share the same gear shaft, the third gear is in meshing connection with the fourth gear, and the fourth gear serves as an output gear, so that the torque is transmitted through the first gear, the second gear, and the third gear to the fourth gear in sequence. Of course, the above is only an example, and the number of gears of the gear transmission unit can also be adjusted according to the size requirements of the adapter 220, which will not be described herein.

[0044] In the case of the gear transmission unit including four gears, the first gear and the second gear are located in the first adapter section 210, the gear shaft between the second gear and the third gear is located in the second adapter section 220, and the third gear and the fourth gear are located in the third adapter section 230, so that the bending arrangement of the adapter is realized through gear transmission.

[0045] In some embodiments, the output gear, i.e., the fourth gear, includes a toothed disc 251 and an output shaft 252, the output shaft 252 is in sliding connection with the toothed disc 251 along the axial direction of the threaded connector 702, so that after the nut of the threaded connector 702 is positioned with the output shaft 252, the output shaft 252 and the threaded connector 702 can jointly move downward along the extension direction of the output shaft 252, i.e., the height direction, thereby avoiding interference between the threaded connector 702 and the hinge 701 during positioning of the assembly frame 200 and the vehicle body 500. In addition, the output shaft 252 can reciprocate along the height direction, and before the threaded fastener is tightened, the output shaft 252 can drive the rod end of the threaded connector 702 to extend into the via of the hinge 701, thereby providing guidance during the tightening process of the threaded connector 702 and improving the stability of the tightening process of the threaded connector 702. Furthermore, the output shaft 252 can reciprocate along the height direction, so as to push the threaded fastener upward during the tightening process of the threaded fastener, thereby further improving the connection stability.

[0046] In some embodiments, the toothed disc 251 is provided with a sliding hole, which is a non-circular hole such as a hexagonal hole, and the lower end of the output shaft 252 extends into the sliding hole, and the upper end of the output shaft 252 extends out of the housing 240. The toothed disc 251 is provided with a non-circular hole, so that the toothed disc 251 can be driven to rotate by the gear, and the output shaft 252 can also reciprocate relative to the toothed disc 251 along the height direction, i.e., the extension direction of the output shaft 252, thereby realizing the sliding connection between the toothed disc 251 and the output shaft 252.

[0047] In some embodiments, please refer to Figure 6The adapter 220 further comprises a restoring member 261, two ends of the restoring member 261 acting on the toothed disc 251 and the output shaft 252 respectively. The two ends of the restoring member 261 act on the toothed disc 251 and the output shaft 252 respectively, so that the output shaft 252 and the threaded connecting member 702 can be moved upward along the height direction under the action of the restoring member 261, and the rod end of the threaded connecting member 702 can be inserted into the via of the hinge 701 to coarsely position the threaded connecting member 702, thereby improving the stability of the tightening process of the threaded connecting member 702.

[0048] In some embodiments, the toothed disc 251 is further provided with a limiting hole coaxially communicated with the sliding hole, the limiting hole having a larger hole diameter than that of the sliding hole, so that a first step is formed on the hole wall of the toothed disc 251, the middle gap of the output shaft 252 is arranged in the limiting hole, the upper end of the output shaft 252 is provided with a second step, and the restoring member is also arranged in the limiting hole and the two ends of the restoring member act on the first step and the second step respectively, thereby realizing the fixation and arrangement of the restoring member.

[0049] In other embodiments, the restoring member 261 can also be arranged outside the toothed disc 251, one end of the restoring member 261 acting on the disc surface of the toothed disc 251 and the other end acting on the upper end of the output shaft 252, so as to realize the fixation, arrangement and restoring function of the restoring member 261.

[0050] In some embodiments, the restoring member 261 can be a spring or a spring. In the case of the restoring member 261 being a spring, the spring is sleeved outside the output shaft 252 and the two ends thereof abut against the first step and the second step respectively.

[0051] In some embodiments, referring to Figures 2 to 4 The adapter 220 is provided with two adapters 220, the two adapters 220 being located on both sides of the positioning frame 210 along the width direction of the vehicle body 500, and the transmission input portion 253a of the adapter 220 being located at the rear end of the hood 600 along the length direction of the vehicle body 500.

[0052] The hood 600 is movably connected with the vehicle body 500 through the two hinges 701, that is, the two hinges 701 need to be connected with the hood 600, and the adapter 220 is provided with two adapters 220, the two adapters 220 being arranged in one-to-one correspondence with the two hinges 701. One tightening member 100 can act on the transmission input portion 253a of the two adapters 220 respectively to connect the two hinges 701 with the hood 600 respectively.

[0053] For the positioning frame 210 of the assembly frame 200, in some embodiments, referring to Figures 2 to 4The positioning frame 210 is provided with a connecting arm 219 extending away from the body of the positioning frame 210, the connecting arm 219 has an included angle with the width direction of the vehicle body 500, and the connecting arm 219 has an included angle with the length direction of the vehicle body 500; one end of the connecting arm 219 away from the positioning frame 210 is connected with the adapter 220.

[0054] The connecting arm 219 extends away from the positioning frame 210 to realize the connection between the adapter 220 and the body of the positioning frame 210, and the body of the positioning frame 210 is small in size, small in space occupation, and low in cost. In specific implementation, the connecting arm 219 is provided with a matching part, and the matching part of the connecting arm 219 is matched with a mounting part on the third adapter section 230.

[0055] For the determination of the relative position between the assembly frame 200 and the vehicle body 500, in some embodiments, please refer to Figures 2 to 4 The positioning frame 210 is provided with a vehicle body main positioning pin 211 and a vehicle body auxiliary positioning pin 212, and the vehicle body 500 is provided with a first main positioning hole and a first auxiliary positioning hole, the first main positioning hole is a circular hole, and the first auxiliary positioning hole is a waist-shaped hole extending along the length direction of the vehicle body. The vehicle body main positioning pin 211 of the positioning frame 210 is inserted into the first main positioning hole, and the vehicle body auxiliary positioning pin 212 is inserted into the first auxiliary positioning hole, so as to realize the positioning of the vehicle body 500 and the assembly frame 200 along the length direction (X direction) and the width direction (Y direction) of the vehicle body 500.

[0056] The positioning frame 210 is provided with a first supporting block 213 and a second supporting block 214 for abutting with the vehicle body 500, and the first supporting block 213 and the second supporting block 214 are arranged at intervals, so as to realize the positioning of the vehicle body 500 and the assembly frame 200 along the height direction (Z direction) through the first supporting block 213 and the second supporting block 214 of the assembly frame 200. In specific implementation, the first supporting block 213 and the second supporting block 214 can be arranged at the front end position of the assembly frame 200 close to the hood 600, and the bottom surfaces of the first supporting block 213 and the second supporting block 214 are matched with the vehicle body 500, so as to realize the positioning of the vehicle body 500 and the assembly frame 200 along the height direction.

[0057] Therefore, the positioning of the assembly frame 200 in the X, Y and Z directions is realized through the vehicle body main positioning pin 211, the vehicle body auxiliary positioning pin 212, the first supporting block 213 and the second supporting block 214 on the positioning frame 210, and the reference of the vehicle body 500 is transferred to the assembly frame 200.

[0058] Please refer to Figures 2 to 4The positioning frame 210 is provided with a hood main positioning pin 215 and a hood auxiliary positioning pin 216, the hood 600 is provided with a second main positioning hole and a second auxiliary positioning hole, the second main positioning hole is a circular hole, the second auxiliary positioning hole is a waist-shaped hole, the waist-shaped hole extends along the length direction of the vehicle body, the hood main positioning pin 215 extends into the second main positioning hole, and the hood auxiliary positioning pin 216 extends into the second auxiliary positioning hole, so that the assembly frame 200 and the hood 600 are positioned along the length direction (X direction) and the width direction (Y direction) of the vehicle body 500.

[0059] The positioning frame 210 is provided with a third supporting block 217 and a fourth supporting block 218 used for abutting against the hood 600, the third supporting block 217 and the fourth supporting block 218 are arranged at intervals, and the third supporting block 217 and the fourth supporting block 218 of the assembly frame 200 are used for positioning the hood 600 along the height direction (Z direction). In a specific implementation, the third supporting block 217 and the fourth supporting block 218 can be arranged at positions close to the front end of the hood 600 of the assembly frame 200, the top surfaces of the third supporting block 217 and the fourth supporting block 218 can be matched with the hood 600, and the positioning of the hood 600 along the height direction relative to the assembly frame 200 is realized.

[0060] Therefore, the positioning of the hood 600 along the X, Y and Z directions relative to the assembly frame 200 is realized through the hood main positioning pin 215, the hood auxiliary positioning pin 216, the third supporting block 217 and the fourth supporting block 218 of the positioning frame 210, so that the positioning of the vehicle body 500 along the X, Y and Z directions relative to the hood 600 is ensured.

[0061] The hood 600 is movably connected to the vehicle body 500 through two hinges 701, the two hinges 701 are generally arranged on the two sides in the width direction of the hood 600, and the two hinges 701 are close to the front end of the hood 600. The size of the assembly frame 200 body is smaller than the size of the hood 600, and the assembly frame 200 is located at a position between the two hinges 701, so that the space between the hood 600 and the vehicle body 500 can be used to accommodate the assembly frame 200, and the gap difference between the hood 600 and the vehicle body 500 is ensured.

[0062] Based on the same technical concept as the first aspect, the second aspect embodiment of the present application provides a hood 600 assembly method, which is realized based on the hood assembly tool of any one of the first aspect embodiments.

[0063] The assembly method provided by the present application comprises the following steps: Step 1: first connect the hinge 701 to the vehicle body 500, then set the threaded connecting piece 702 in the positioning part 252a, position the assembly frame 200 relative to the vehicle body 500, and then position the hood 600 relative to the assembly frame 200; Step 2: the output end of the tightening member 100 is matched with the transmission input part 253a of the adapter 220, the tightening member 100 is actuated, the threaded connecting member 702 is screwed into the through hole of the hinge 701 and the hinge mounting hole of the cover 600, and the tightening member 100 is removed; Step 3: the cover 600 is opened, the assembly frame 200 is removed from the vehicle body 500, and the assembly of the cover 600 is completed.

[0064] The hinge 701 is first connected with the vehicle body 500, the threaded connecting member 702 is arranged in the positioning part 252a, and then the assembly frame 200 is positioned with the vehicle body 500. At this time, the cover 600 connecting side of the hinge 701 is located above the positioning part 252a, the threaded connecting member 702 is matched with the positioning part 252a, and the rod part of the threaded connecting member 702 faces upward. At this time, the threaded connecting member 702 and the through hole are coaxial. Then, the cover 600 is positioned to the assembly frame 200, and the hinge mounting hole of the cover 600 is just located above the through hole. The tightening member 100 provides power, the positioning part 252a rotates, so that the upper end of the threaded connecting member 702 is screwed into the through hole of the hinge 701 and the hinge mounting hole of the cover 600, and the connection between the cover 600 and the hinge 701 is realized.

[0065] In the case where two connecting members are provided, step 2 specifically includes: the output end of the tightening member 100 is matched with the transmission input part 253a of one of the adapters 220, the tightening member 100 is actuated, the threaded connecting member 702 is screwed into the through hole of the hinge 701 and the hinge mounting hole of the cover 600, and the tightening member 100 is removed. The output end of the tightening member 100 is matched with the transmission input part 253a of the other adapter 220, the tightening member 100 is actuated, the threaded connecting member 702 is screwed into the through hole of the hinge 701 and the hinge mounting hole of the cover 600, and the tightening member 100 is removed.

[0066] Two hinges 701 and the cover 600 are connected by one tightening member 100, which saves cost. Of course, two tightening members 100 can also be provided, one tightening member 100 is used by each of two operating personnel, and the two operating personnel operate at the same time, so that the assembly efficiency of the cover 600 is improved.

[0067] In the case that the adapter 220 is provided with the restoring member 261, the assembly frame 200 is positioned with the vehicle body 500, and the threaded connecting member 702 is manually pressed down to avoid interference between the upper end of the threaded connecting member 702 and the hood 600 connecting side of the hinge 701. After the assembly frame 200 is positioned with the vehicle body 500, the threaded connecting member 702 is manually released, the rod end of the threaded connecting member 702 is lifted, the upper end passes through the through hole of the hinge 701 and extends to the outside of the through hole. In the process of positioning the hood 600 to the assembly frame 200, the hood 600 will press down the rod end of the threaded connecting member 702 through the hinge mounting hole, so that the rod end of the threaded connecting member 702 is in contact with the hood 600, and the spring is compressed. In the process of tightening the tightening member 100, as the threaded connecting member 702 rotates, the spring will gradually recover, the output shaft 252 gradually rises, the threaded connecting member 702 rises, and the threaded connection between the threaded connecting member 702 and the hinge mounting hole of the hood 600 is completed.

[0068] The assembly method of the hood assembly tool of the present application is described in detail below, taking the case that the adapter 220 is provided with a spring and the adapter 220 is provided with two.

[0069] First, the vehicle body 500 connecting side of the two hinges 701 is connected with the vehicle body 500, and the nuts of the two bolts are respectively placed in the positioning grooves of the output shafts 252 of the two adapters 220, and the screw rods are upward. Then, the assembly frame 200 is positioned with the two bolts and the vehicle body 500, the vehicle body main positioning pin 211 of the assembly frame 200 is inserted into the first main positioning hole of the vehicle body 500, the auxiliary positioning pin of the assembly frame 200 is inserted into the first auxiliary positioning hole of the vehicle body 500, the lower bottom surfaces of the first support block 213 and the second support block 214 of the assembly frame 200 are in contact with the vehicle body 500, and the rear end of the assembly frame 200 is in contact with the vehicle body, thereby realizing the support of the assembly frame. In this process, the two bolts need to be manually pressed down, and the output shafts 252 also descend at the same time to avoid interference between the bolts and the hood 600 connecting side of the hinge 701. After the assembly frame 200 is positioned with the vehicle body 500, the bolts are released, the upper ends of the bolts pass through the through holes of the corresponding hinges 701 and extend above the through holes.

[0070] Then, the hood 600 is placed on the assembly frame 200, the hood main positioning pin 215 of the assembly frame 200 extends into the second main positioning hole of the hood 600, the hood auxiliary positioning pin 216 of the assembly frame 200 extends into the second auxiliary positioning hole of the hood 600, the top surfaces of the third support block 217 and the fourth support block 218 of the assembly frame 200 support the front end of the hood 600, the rear end of the hood 600 is supported by the two hinges 701, the two bolts descend together with the output shafts 252 under the action of the hood 600, the rod ends of the bolts abut against the hole ends of the hinge mounting holes of the hood 600, and the input shafts 253 of the two adapters 220 are exposed to the hood 600.

[0071] The output end of the tightening piece 100 is first matched with the input shaft 253 of one of the adapter pieces 220, the power transmission of the tightening piece 100 is started to the corresponding bolt, the bolt rotates and moves upward under the action of torque and the restoring force of the spring, and the screw connection with the corresponding hinge mounting hole is realized. The tightening piece 100 is removed, the output end of the tightening piece 100 is matched with the input shaft 253 of the other adapter piece 220, the power transmission of the tightening piece 100 is started to the corresponding bolt, the bolt rotates and moves upward under the action of torque and the restoring force of the spring, and the screw connection with the corresponding hinge mounting hole is realized.

[0072] The tightening piece 100 is removed, the machine cover 600 is opened, and the assembly frame 200 is taken out, and the assembly of the machine cover 600 is completed.

[0073] The machine cover assembly tool and the assembly method provided by the application have at least the following advantages: (1) The adapter piece 220 and the positioning frame 210 are integrated, which can solve the problem that the tightening point cannot be confirmed or the tightening is not perpendicular to cause the thread to slip when the machine cover 600 is closed and the manual tightening operation is performed. During the tightening process, such tools as the tightening piece 100 are standard tools, and for the requirement that the connection angle of the tightening head and the body of the tightening piece 100 is not perpendicular, customization is often required, which is high in price, long in development cycle, and difficult to replace spare parts.

[0074] (2) The tightening space of the threaded connection piece 702 is small when the machine cover 600 is closed, and the space cannot meet the safety distance of the tool and the plate for manual tightening with the tightening gun, which causes the manual operation to be difficult, and the man-machine engineering calculation for tightening is often red and yellow. The integrated adapter piece 220 and positioning frame 210 can well meet the closing tightening requirement of the size assembly machine cover 600, can realize that the installation state of the machine cover 600 is the working state, can confirm the gap and the surface difference in the first time, and can well control the adjustment direction and the adjustment amount of the size, which is convenient for adjustment.

[0075] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0076] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0077] In the present application, unless otherwise expressly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise expressly specified and limited.

[0079] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hood assembly tool characterized by, The assembly tool comprises: a tightening member for tightening a threaded connecting member to connect a hatch and a hinge mounted on a vehicle body; an assembly frame comprising a positioning frame for positioning the hatch and the vehicle body and an adapter connected to the positioning frame, the adapter being provided with a positioning portion for positioning the threaded connecting member and a transmission input portion, the positioning portion, a through hole of the hinge and a hinge mounting hole of the hatch being coaxially arranged in sequence from bottom to top, and the transmission input portion being configured to cooperate with an output end of the tightening member, the transmission input portion being located outside a projection of the hatch along a height direction.

2. The hood assembly tooling of claim 1, wherein, The transmission input portion has a height higher than that of the positioning portion.

3. The hood assembly tooling of claim 2, wherein, The adapter comprises a first adapter segment, a second adapter segment and a third adapter segment arranged in sequence along a power transmission direction, and the second adapter segment extends along a height direction. The transmission input portion is located in the first adapter segment, and the positioning portion is located in the third adapter segment.

4. The hood assembly tooling of claim 3, wherein, The third adapter segment is provided with a mounting portion, and the positioning frame is provided with a matching portion, the mounting portion and the matching portion being mounted and matched. The mounting portion and the positioning portion are arranged in sequence along the power transmission direction.

5. The hood assembly tooling of any one of claims 1-4, wherein, The adapter further comprises a housing and a gear transmission unit mounted in the housing. An upper end of an input shaft of an input gear of the gear transmission unit extends out of the housing, and the upper end of the input shaft constitutes the transmission input portion, an upper end of an output shaft of an output gear of the gear transmission unit extends out of the housing, and the upper end of the output shaft constitutes the positioning portion. The output shaft of the output gear is slidably connected to a toothed disc along an axial direction of the threaded connecting member.

6. The hood assembly tooling of claim 5, wherein, The toothed disc of the output gear is provided with a sliding hole, the sliding hole is a non-circular hole, a lower end of the output shaft extends into the sliding hole, and an upper end of the output shaft extends out of the housing.

7. The hood assembly tooling of claim 5, wherein, The adapter further comprises a restoring member, and two ends of the restoring member act on the toothed disc of the output gear and the output shaft, respectively.

8. The hood assembly tooling of any one of claims 1-4, wherein, The adapter is provided with two adapters, the two adapters are located on two sides of the positioning frame along a width direction of the vehicle body, and the transmission input portions of the adapters are located at rear ends of the hatch along a length direction of the vehicle body.

9. The hood assembly tooling of claim 8, wherein, The positioning frame is provided with a connecting arm extending away from a body of the positioning frame, the connecting arm has an included angle with the width direction of the vehicle body, and the connecting arm has an included angle with a length direction of the vehicle body. An end of the connecting arm away from the positioning frame is connected to the adapter.

10. A method of assembling a cowling assembly according to any one of claims 1 to 9, characterised in that, The assembly method comprises the following steps: Step 1: first connect the hinge with the vehicle body, then arrange the threaded connecting member on the positioning portion, position the assembly frame with the vehicle body, and then position the hatch to the assembly frame; Step 2: cooperate the output end of the tightening member with the transmission input portion of the adapter, act the tightening member, screw the threaded connecting member into the through hole of the hinge and the hinge mounting hole of the hatch, and then remove the tightening member; Step 3: open the hatch, remove the assembly frame from the vehicle body, and complete the assembly of the hatch.

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