Mounting tool for mounting four-door hinges of automobile and using method of mounting tool

Abstract

The invention relates to the technical field of automobile assembly, in particular to a harness for installing four door hinges of an automobile and a using method of the harness for installing the four door hinges of the automobile. The harness frame is provided with a guiding structure used for guiding the harness frame to move to be close to a vehicle body, harness positioning structures used for positioning the harness frame on the vehicle body, a control switch used for controlling the harness positioning structures and two hinge positioning structures. And an adjusting structure for adjusting the mounting parallelism of the front door female hinge and the rear door female hinge is arranged on the harness frame. Through cooperative use of the guide structure, the harness positioning structure and the hinge positioning structure, the purpose of accurately installing the front and rear door female hinges on the vehicle body is achieved, overall installation is simple and rapid, the number of times of reworking adjustment is reduced, and the assembling efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of automobile assembly, and in particular to a tool for installing a four-door hinge of an automobile and a method for using the tool. Background Art

[0002] With the rapid development of the automotive industry, automakers and customers have higher and higher requirements for appearance quality, especially for gap and surface difference matching. How to ensure assembly consistency and take into account appearance quality during rapid production is the focus of engineers of all dimensions.

[0003] The body and doors of a car are usually connected by hinges. The traditional installation method is: four female hinges are manually assembled on the front and rear door frames of the car body, and four male hinges are respectively assembled on the front and rear doors. Then, a fixture is used to align the door with the male hinge with the body, and the male hinge and the female hinge are aligned. Finally, the male hinge and the female hinge can be connected and fixed to achieve the assembly of the door.

[0004] However, in actual use, the manual method of assembling the female hinge on the vehicle body is prone to mismatching the hinge installation position accuracy on the front door or the rear door, resulting in the door being unable to be connected to the vehicle body when the front and rear doors are subsequently installed. It is also necessary to manually readjust the installation of the door and the female hinge at a later time, resulting in a low overall door hinge assembly efficiency, which remains to be improved. Summary of the invention

[0005] In order to solve the problem that the assembly efficiency is low and the assembly accuracy cannot be guaranteed when assembling the female hinge manually, the present application provides a device for installing a four-door hinge of an automobile and a method for using the device.

[0006] In the first aspect, the present application provides a four-door hinge installation device for a car, which adopts the following technical solution: A fixture for installing hinges for four automobile doors comprises a fixture frame hoisted above a production line, the fixture frame being provided with a guide structure for guiding the fixture frame to move close to a vehicle body, a fixture positioning structure for positioning the fixture frame on the vehicle body, a control switch for controlling the fixture positioning structure, and a hinge positioning structure, wherein two groups of hinge positioning structures are provided, one group of hinge positioning structures being used for installing a front door female hinge, and the other group of hinge positioning structures being used for installing a rear door female hinge, and the fixture frame being provided with an adjustment structure for adjusting the parallelism of the installation of the front door female hinge and the rear door female hinge.

[0007] By adopting the above technical solution, when in use, the female hinges of the front and rear doors are first installed on the fixture frame through the hinge positioning structure, and then the fixture frame is moved to make it as a whole close to the vehicle body, so that under the cooperation of the guide structure and the fixture positioning structure, the fixture frame is positioned as a whole with the vehicle body, thereby realizing the initial positioning of the female hinge and the vehicle body, and finally the parallelism of the front door female hinge and the rear door female hinge is adjusted through the adjustment structure, so as to ensure the quality of subsequent door assembly. The overall use process is simple and convenient, and also ensures the assembly efficiency and assembly quality of the hinges and subsequent doors.

[0008] Preferably, the guide structure includes a first fixing seat fixed on the equipment frame, a guide plate fixed to an end of the first fixing seat away from the equipment frame, and a first abutment block fixed on the equipment frame, and a plurality of the first fixing seats and guide plates are provided, and the guide plates are arranged in a one-to-one correspondence with the first fixing seats, and the plurality of guide plates are arranged at intervals along the circumference of the door frame on the vehicle body, and an anti-wear layer is provided on the guide plate, and the first abutment block abuts and cooperates with the vehicle body.

[0009] By adopting the above technical solution, when pushing, when the staff pushes the fixture frame, the moving direction of the fixture frame is guided by a plurality of guide plates until the first abutment block abuts against the vehicle body, and then the guiding and positioning of the fixture frame can be achieved. In this process, the friction damage between the guide plate and the door frame of the vehicle body is reduced by the anti-wear layer, ensuring that the quality of the vehicle body is not affected during the assembly process.

[0010] Preferably, an inclined guide plate is provided at one end of the guide plate away from the harness frame.

[0011] By adopting the above technical solution, when in use, the cooperation of the guide inclined plate makes it easier for the guide plate and the door frame on the vehicle body to cooperate, thereby facilitating the staff to quickly position the mounting frame on the vehicle body.

[0012] Preferably, the harness positioning structure includes a first positioning pin fixed on the harness frame, a clamping block rotatably arranged on the harness frame, and a first driving assembly arranged on the harness frame for driving the clamping block to rotate, the clamping block abuts against the vehicle body, and after the clamping block rotates, a clamping space for clamping and fixing the vehicle body is formed between the clamping block and the first abutting block, and the control switch is used to control the start-up of the first driving assembly.

[0013] By adopting the above technical solution, when in use, the first positioning pin is gradually inserted into the corresponding pin hole on the vehicle body through the guidance of the guide plate to the harness frame, so that the purpose of accurately positioning the harness frame on the vehicle body is achieved through the cooperation of the first positioning pin and the pin hole, and then the clamping block is driven by the first driving component to rotate to abut the vehicle body, and with the cooperation of the first abutting block, the vehicle body is clamped, thereby fixing the harness frame.

[0014] Preferably, the adjustment structure includes a second fixing seat and a third fixing seat fixed on the equipment frame, a first mounting plate rotatably arranged on the second fixing seat, a second abutment block fixed on the third fixing seat, a first pad arranged between the second abutment block and the third fixing seat, an adjusting bolt fixed on the third fixing seat, and an abutment nut threadedly connected to the adjusting bolt, a limiting hole is provided on the first mounting plate, one end of the adjusting bolt passes through the limiting hole and is connected to the abutment nut, the second abutment block abuts and cooperates with a side wall of the first mounting plate, and the abutment nut abuts and cooperates with a side wall of the first mounting plate away from the second abutment block.

[0015] By adopting the above technical solution, when in use, by adjusting the number of the first pads, the distance between the second abutment block and the first mounting plate is adjusted, so as to abut the first mounting plate to rotate, thereby adjusting the angle of the first mounting plate, and then screwing the abutment nut to lock it, so as to achieve the adjustment of the parallelism of the front door female hinge and the rear door female hinge installation through the above operation.

[0016] Preferably, a connecting plate is fixed on the first mounting plate, a second mounting plate is provided at one end of the connecting plate away from the first mounting plate, a second pad is provided between the connecting plate and the first mounting plate, a plurality of groups of mounting holes are provided on the second mounting plate, and the plurality of groups of mounting holes are evenly spaced along the length direction of the second mounting plate, mounting bolts are provided on the connecting plate, one end of the mounting bolts passes through the connecting plate and is threadedly connected to one of the groups of mounting holes, and the hinge positioning structure is provided on the second mounting plate.

[0017] By adopting the above technical solution, when in use, by adjusting the number of second pads, the spacing between the two groups of hinge positioning structures corresponding to the front door and the rear door is changed to adapt to different long body lengths, and by adjusting the installation position of the connecting plate on the second mounting plate, the installation spacing of the two female hinges in the same group of hinge positioning structures is adjusted to adapt to different vehicle body heights. The two can cooperate to achieve the hinge installation positioning for different vehicle bodies, thereby increasing the scope of application of the overall device.

[0018] Preferably, the hinge positioning structure includes a fourth fixed seat fixed on the second mounting plate, a first driving cylinder fixed on the fourth fixed seat, a support block arranged on the piston rod of the first driving cylinder, a sliding seat slidingly arranged on the second mounting plate, a second driving cylinder arranged on the second mounting plate for driving the sliding seat to slide, a second positioning pin fixed on the sliding seat, and a first limiting clamp block and a second limiting clamp block fixed on the sliding seat, a limiting space for limiting the female hinge is formed between the support block, the sliding seat, the first limiting clamp block and the second limiting clamp block, and the second positioning pin is plugged into and matched with a hinge hole on the female hinge for mounting a male hinge.

[0019] By adopting the above technical solution, when in use, first place the female hinge under the sliding seat, and insert the second positioning pin into the hinge hole of the female hinge, and then drive the support block to move through the first driving cylinder so that the support block abuts against the female hinge, thereby achieving the limitation of the height direction of the female hinge through the cooperation of the support block and the sliding seat, and then cooperate with the second positioning pin, the first limiting clamp block and the second limiting clamp block to achieve the limitation of the horizontal direction of the female hinge, so that the female hinge can be positioned on the fixture frame, thereby facilitating the assembly of the female hinge and the vehicle body. After the female hinge is assembled on the vehicle body, the support block is driven to separate from the female hinge through the first driving cylinder, and the sliding seat and the second positioning pin are driven to separate from the female hinge through the second driving cylinder, and then the fixture frame can be moved to separate it from the vehicle body. The overall use is simple and convenient.

[0020] Preferably, a third abutment block is provided on the fourth fixing seat, and the third abutment block abuts against the vehicle body.

[0021] By adopting the above technical solution, when in use, the third abutment block abuts against the vehicle body to support the area on the vehicle body where the female hinge is installed, thereby facilitating subsequent staff to fix the female hinge bolts on the vehicle body.

[0022] In a second aspect, the present application provides a method for installing a four-door hinge of an automobile, which adopts the following technical solution: A method for installing a four-door hinge of an automobile comprises the following steps: S1. When the vehicle body is moved to the designated position, the mounting frame is lowered to the position close to the vehicle body by hoisting; S2, installing the front door female hinge and the rear door female hinge on the fixture frame in sequence through the hinge positioning structure; S3, the staff assists in pushing the mounting frame, and under the action of the guide structure, the mounting frame approaches the vehicle body and completes the initial positioning with the vehicle body, and then continues to push the mounting frame until the first positioning pin is inserted into the corresponding position on the vehicle body and the first abutment block abuts against the vehicle body; S4, driving the clamping block to rotate to abut against the vehicle body through the first driving assembly, so that the vehicle body is clamped by the first abutting block and the clamping block, thereby completing the positioning of the female hinge at the installation position on the vehicle body; S5. Adjust the parallelism of the front door female hinge and the rear door female hinge by adjusting the structure. After the adjustment is completed, the staff will use a torque gun to fix the female hinge bolts on the vehicle body; S6, after all the female hinges are installed, the first driving cylinder and the second driving cylinder drive the support block and the second positioning pin, the first limiting clamp block and the second limiting clamp block to separate from the female hinge; S7. The fixture is hoisted to rise completely away from the vehicle body, and the male hinges on the front and rear doors are installed on the female hinges one by one. After the assembly of the four doors of the car is completed, the car body continues to move to the next process on the production line.

[0023] By adopting the above technical solution, when in use, the female hinge is positioned on the fixture frame through the hinge positioning structure, and then the fixture frame is positioned on the vehicle body through the cooperation of the guide structure and the fixture positioning structure, so as to ensure the installation efficiency of the female hinge. At the same time, before fixing the female hinge, the parallelism of the front door female hinge and the rear door female hinge is adjusted through the adjustment structure, thereby ensuring the installation accuracy of the female hinge, and then ensuring the installation accuracy of the front and rear doors. The overall use is simple and convenient.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. First, the female hinges of the front and rear doors are installed on the fixture frame through the hinge positioning structure, and then the fixture frame is moved to make it close to the body as a whole. Under the cooperation of the guide structure and the fixture positioning structure, the fixture frame is positioned with the body as a whole, so as to achieve the initial positioning of the female hinge and the body. Finally, the parallelism of the front door female hinge and the rear door female hinge is adjusted through the adjustment structure to ensure the quality of subsequent door assembly. The overall use process is simple and convenient, and also ensures the assembly efficiency and assembly quality of the hinge and subsequent doors; 2. By adjusting the number of second pads and the installation position of the connecting plate on the second mounting plate, the vehicle bodies of different sizes can be adapted to achieve the hinge installation positioning for different vehicle bodies, thereby increasing the application range of the overall device; 3. Through the coordinated use of the first driving cylinder and the second driving cylinder, on the premise of achieving the positioning of the female hinge, when the female hinge is installed on the vehicle body, the purpose of quickly detaching the female hinge is also achieved, thereby facilitating the movement of the mounting frame to detach it from the vehicle body, and the overall use is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram mainly showing the overall structure in the first embodiment of the present application; Figure 2 It is a schematic diagram mainly showing the structure of the equipment in the first embodiment of the present application; Figure 3 It is a schematic diagram mainly showing the guiding structure in the first embodiment of the present application; Figure 4 It is a schematic diagram mainly showing the positioning structure of the equipment in the first embodiment of the present application; Figure 5 It is a schematic diagram mainly showing the structure of the first driving assembly in the first embodiment of the present application; Figure 6 It is a schematic diagram mainly showing the adjustment structure in the first embodiment of the present application; Figure 7 It is a schematic diagram mainly showing the structure of the first mounting plate in the first embodiment of the present application; Figure 8 It is a schematic diagram mainly showing the hinge positioning structure in the first embodiment of the present application; Fig. 9 It is a schematic diagram mainly showing the structure of the sliding seat in the first embodiment of the present application; Fig.10 It is a schematic diagram mainly showing the overall structure of the equipment in the second embodiment of the present application; Fig.11 It is a schematic diagram mainly showing the guide plate structure in the second embodiment of the present application; Fig.12 It is a schematic diagram mainly showing the frame structure of the equipment in the second embodiment of the present application.

[0026] Figure numerals: 1. fixture frame; 11. bottom crossbeam; 12. lateral vertical pole; 13. middle connecting crossbeam; 131. first rod body; 132. second rod body; 133. adjusting rod body; 14. slide rail; 15. slide seat; 16. hook; 2. guide structure; 21. first fixed seat; 22. guide plate; 23. first abutment block; 24. anti-wear layer; 25. guide inclined plate; 26. return spring; 3. fixture positioning structure; 31. first positioning pin; 32. clamping block; 33. first driving assembly; 331. third driving cylinder; 332. first rack; 333. first gear; 334. rotating shaft; 4. control Switch; 5. Hinge positioning structure; 51. Fourth fixed seat; 52. First driving cylinder; 53. Support block; 54. Sliding seat; 55. Second driving cylinder; 56. Second positioning pin; 57. First limiting clamp block; 58. Second limiting clamp block; 6. Adjustment structure; 61. Second fixed seat; 62. Third fixed seat; 63. First mounting plate; 64. Second abutment block; 65. First pad; 66. Adjustment bolt; 67. Abutment nut; 7. Connecting plate; 8. Second mounting plate; 81. Mounting hole; 9. Second pad; 10. Third abutment block; 20. Placement hole; 30. Storage box; 40. Vehicle body; 50. Female hinge. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Fig.12 This application is described in further detail.

[0028] The embodiment of the present application discloses a fixture for installing four-door hinges of an automobile and a method of using the fixture.

[0029] Embodiment 1: Reference Figure 1 and Figure 2 A fixture for installing four-door hinges of an automobile comprises a fixture frame 1 placed horizontally, the fixture frame 1 is hoisted above the production line by an electric hoist, a guide structure 2, a fixture positioning structure 3, a control switch 4, a hinge positioning structure 5 and an adjustment structure 6 are arranged on the fixture frame 1, four groups of hinge positioning structures 5 are arranged, two groups of adjustment structures 6 are arranged, one group of adjustment structures 6 corresponds to two groups of hinge positioning structures 5, and the two groups of adjustment structures 6 correspond to the front and rear door positions of the vehicle body 40.

[0030] Reference Figure 1 and Figure 2 When in use, the front door female hinge 50 and the rear door female hinge 50 are both positioned on the fixture frame 1 through the cooperation of the four sets of hinge positioning structures 5, and then the staff pushes the fixture frame 1, and under the action of the guide structure 2, the fixture frame 1 is moved close to the vehicle body 40, and then the control switch 4 controls the fixture positioning structure 3 to position the fixture frame 1 and the vehicle body 40, so as to facilitate the subsequent installation of the female hinge 50, and finally the parallelism of the installation positions of the front door female hinge 50 and the rear door female hinge 50 is adjusted through the adjustment structure 6, so as to ensure the assembly quality of the front door and the rear door.

[0031] Reference Figure 2 and Figure 3 The guide structure 2 includes a first fixing seat 21, a guide plate 22 and a first abutting block 23. The first fixing seat 21 is fixed to the tool frame 1 by bolts. The guide plate 22 is fixed to the end of the first fixing seat 21 away from the tool frame 1 by bolts. The guide plate 22 abuts against the inner wall of the door frame on the vehicle body 40. A guide inclined plate 25 is also integrally formed on the end of the guide plate 22 away from the tool frame 1. An anti-wear layer 24 is fixed to the guide inclined plate 25 and the guide plate 22 by bolts. In this embodiment, the anti-wear layer 24 is a block made of nylon material. The first abutting block 23 is fixed to the tool frame 1 by bolts, and the first abutting block 23 abuts against the vehicle body 40.

[0032] Reference Figure 2 and Figure 3, the first fixed seat 21, the guide plate 22 and the first abutment block 23 are all provided with several groups, and the several groups of the first fixed seat 21, the guide plate 22 and the first abutment block 23 are arranged at intervals on the side of the door frame of the vehicle body 40. In the present embodiment, the first fixed seat 21 is arranged in four groups, and the number and position of the guide plates 22 correspond to the first fixed seat 21 one by one. One of the first fixed seats 21 and the guide plate 22 are located on the side of the door frame of the vehicle body 40 close to the A-pillar, the second first fixed seat 21 and the second guide plate 22 are located on the side of the door frame of the vehicle body 40 close to the B-pillar, and the other two first fixed seats 21 and the guide plates 22 are both located at the bottom of the door frame of the vehicle body 40. The first abutment block 23 is also provided in four groups, of which two groups of the first abutment blocks 23 correspond to the side of the door frame of the vehicle body 40 close to the A-pillar, and the other two groups of the first abutment blocks 23 correspond to the side of the door frame of the vehicle body 40 close to the B-pillar.

[0033] Reference Figure 2 and Figure 3 When the staff pushes the harness frame 1, the four sets of guide inclined plates 25 cooperate with the door frame of the vehicle body 40 to gradually position the harness frame 1 on the vehicle body 40 during the movement, until the first abutment block 23 abuts against the outer wall of the vehicle body 40, and then the pushing of the harness frame 1 can be stopped. At this time, the side walls of the four sets of guide plates 22 abut against the inner wall of the door frame of the vehicle body 40, thereby completing the initial positioning of the harness frame 1 and the vehicle body 40.

[0034] Reference Figure 2 and Figure 4 The fixture positioning structure 3 includes a first positioning pin 31, a clamping block 32 and a first driving assembly 33. The first positioning pin 31 is fixed to the fixture frame 1. The first positioning pin 31 is plugged into a preset pin hole on the vehicle body 40. In the present embodiment, the first positioning pin 31, the clamping block 32 and the first driving assembly 33 are all arranged in two groups, wherein the two groups of first positioning pins 31 are arranged corresponding to the A-pillar and the B-pillar on the vehicle body 40, the clamping block 32 and the first driving assembly 33 are arranged in a one-to-one correspondence with the first abutting block 23, the clamping block 32 is rotatably connected to the fixture frame 1, and the first driving assembly 33 is used to drive the clamping block 32 to rotate. When the clamping block 32 rotates to abut against the vehicle body 40, a clamping space for clamping the door frame of the vehicle body 40 is formed between the clamping block 32 and the first abutting block 23.

[0035] Reference Figure 4 and Figure 5The first driving assembly 33 includes a third driving cylinder 331, a first rack 332, a first gear 333 and a rotating shaft 334, wherein the cylinder body of the third driving cylinder 331 is fixed to the tool frame 1 by bolts, the first rack 332 is fixed to the piston rod of the third driving cylinder 331, the first gear 333 rotates on the tool frame 1, and the first gear 333 and the first rack 332 are meshed with each other, the rotating shaft 334 is coaxially fixed with the first gear 333, one end of the clamping block 32 is fixed to the rotating shaft 334 by bolts, and the other end of the clamping block 32 is used to abut the vehicle body 40.

[0036] Reference Figure 4 and Figure 5 During the movement of the harness frame 1, the guide plate 22 is used to initially position the harness frame 1 on the vehicle body 40, and then the harness frame 1 is continuously pushed. When the first positioning pin 31 is inserted into the pin hole on the vehicle body 40, the first positioning pin 31 and the pin hole cooperate to achieve secondary positioning of the harness frame 1, until the first abutting block 23 abuts against the vehicle body 40, and then the third driving cylinder 331 is started to rotate the clamping block 32 to abut against the side of the vehicle body 40 away from the first abutting block 23, thereby achieving the overall fixing of the harness frame 1 on the vehicle body 40, and also ensuring the accuracy of the relative position of the harness frame 1 and the vehicle body 40.

[0037] Reference Figure 2 and Figure 6 The adjustment structure 6 is composed of a second fixing seat 61, a third fixing seat 62, a first mounting plate 63, a second abutment block 64, a first pad 65, an adjusting bolt 66 and an abutment nut 67. The second fixing seat 61 and the third fixing seat 62 are both fixed to the fixture frame 1 by bolts, and the second fixing seat 61 is located above the third fixing seat 62. The second abutment block 64 is fixed to the third fixing seat 62 by bolts. The top end of the first mounting plate 63 is rotatably connected to the second fixing seat 61, and the side wall of the bottom end of the first mounting plate 63 abuts against the second abutment block 64. In this embodiment, the second abutment block 64 is arranged to be an arc surface on the side facing the first mounting plate 63.

[0038] Reference Figure 2 and Figure 6 The first pad 65 is located between the third fixing seat 62 and the second abutment block 64. There are several first pads 65. The third fixing seat 62, the second abutment block 64 and several first pads 65 are fixed together by bolts. The adjusting bolt 66 is passed through the end of the third fixing seat 62 away from the second abutment block 64. A limiting hole is opened on the first mounting plate 63. One end of the adjusting bolt 66 passes through the third fixing seat 62 and the limiting hole and is located on the other side of the first mounting plate 63. The abutment nut 67 is threadedly connected to the adjusting bolt 66, and the abutment nut 67 abuts against the side of the first mounting plate 63 away from the third fixing seat 62.

[0039] Reference Figure 2 and Figure 6 When in use, by adjusting the number of the first pads 65, the distance between the second abutment block 64 and the third fixing seat 62 is changed, so as to abut the first mounting plate 63 for rotation, thereby adjusting the rotation angle of the first mounting plate 63. After the adjustment is completed, the knob abutment nut 67 can be turned to make the abutment nut 67 abut against the side wall of the first mounting plate 63, so that the first mounting plate 63 is clamped and fixed by the abutment nut 67 and the second abutment block 64.

[0040] Reference Figure 6 and Figure 7 A connecting plate 7 is fixedly connected to the first mounting plate 63 by bolts. In the present embodiment, two connecting plates 7 are provided, and the two connecting plates 7 are spaced apart along the length direction of the first mounting plate 63. A second mounting plate 8 is provided at one end of the connecting plate 7 away from the first mounting plate 63. A plurality of groups of mounting holes 81 are opened on the second mounting plate 8, and the plurality of groups of mounting holes 81 are evenly spaced apart along the length direction of the second mounting plate 8. Mounting bolts are passed through the connecting plate 7, and one end of the mounting bolts passes through the connecting plate 7 and is threadedly connected to one of the groups of mounting holes 81. In addition, a second pad 9 is provided between the connecting plate 7 and the first mounting plate 63, and a plurality of second pads 9 are stacked. The connecting plate 7, the first mounting plate 63 and the second pad 9 are connected together by bolts.

[0041] Reference Figure 6 and Figure 7 Two sets of hinge positioning structures 5 are arranged at both ends of the second mounting plate 8 in the length direction; when in use, the distance between the second mounting plate 8 and the first mounting plate 63 is changed by adjusting the number of second pads 9, so as to adjust the distance between the adjustment structure 6 corresponding to the front door and the adjustment structure 6 corresponding to the rear door, so as to adapt to vehicle bodies 40 of different lengths; by threading the mounting bolts into the mounting holes 81 at different positions, the height of the second mounting plate 8 is adjusted, thereby adjusting the height position of the hinge positioning structure 5, and then adapting to vehicle bodies 40 of different heights, thereby improving the overall applicability of the device.

[0042] Reference Figure 7 and Figure 8 The hinge positioning structure 5 is composed of a fourth fixed seat 51, a first driving cylinder 52, a support block 53, a sliding seat 54, a second driving cylinder 55, a second positioning pin 56, a first limiting clamp 57 and a second limiting clamp 58. The fourth fixed seat 51 is fixed to the second mounting plate 8 by bolts, the cylinder body of the first driving cylinder 52 is installed on the fourth fixed seat 51, and the support block 53 is slidably set on the fourth fixed seat 51 along the length direction of the second mounting plate 8. The piston rod of the first driving cylinder 52 passes through the fourth fixed seat 51 and is fixedly connected to the support block 53. The support block 53 is used to support the bottom end surface of the female hinge 50.

[0043] Reference Figure 8 and Fig. 9 The sliding seat 54 is slidably connected to the second mounting plate 8, and the sliding direction of the sliding seat 54 is parallel to the length direction of the second mounting plate 8. The second driving cylinder 55 is inverted as a whole and is arranged on the second mounting plate 8, and the cylinder end of the second driving cylinder 55 is hinged on the second mounting plate 8. The piston rod of the second driving cylinder 55 is hinged to the sliding seat 54, and the second locating pin 56 is fixed on the sliding seat 54. The second locating pin 56 is plugged into and matched with the hinge hole of the female hinge 50 for installing the male hinge. The first limiting clamp 57 and the second limiting clamp 58 are arranged at one end of the sliding seat 54 away from the second driving cylinder 55, and the first limiting clamp 57 and the second limiting clamp 58 are arranged relatively to each other.

[0044] Reference Figure 8 and Fig. 9 When in use, a limiting space for limiting the female hinge 50 is formed between the support block 53, the sliding seat 54, the first limiting clamp block 57 and the second limiting clamp block 58. The female hinge 50 is moved to the bottom of the sliding seat 54, and the hinge hole on the female hinge 50 is aligned with the second positioning pin 56. Then, the female hinge 50 is moved upward, and the second positioning pin 56 is gradually inserted into the hinge hole until the top end surface of the female hinge 50 abuts against the bottom end surface of the sliding seat 54. The first limiting clamp block 57 and the second limiting clamp block 58 can be used to clamp and limit the two sides of the female hinge 50. Finally, the first driving cylinder 52 drives the support block 53 to rise until the top end surface of the support block 53 abuts against the bottom end surface of the female hinge 50, thereby achieving fixed limitation of the female hinge 50.

[0045] Reference Figure 7 and Figure 8 When the female hinge 50 is fixed on the mounting frame 1, the mounting frame 1 can be pushed close to the vehicle body 40 until the mounting frame 1 is positioned on the vehicle body 40, and the initial positioning of the female hinge 50 is also completed. After that, the staff can observe whether the female hinge 50 and the through hole on the vehicle body 40 for installing the female hinge 50 are aligned. If not, the angles of the female hinge 50 of the front door and the rear door can be adjusted by the adjustment structure 6. After the adjustment is completed, the staff can fix the female hinge 50 on the vehicle body 40 with bolts. In the process of tightening the bolts, in order to increase the stability of the vehicle body 40 and the mounting frame 1, a third abutting block 10 is also fixed on the fourth fixing seat 51, and the third abutting block 10 abuts and cooperates with the vehicle body 40.

[0046] Reference Figure 1 The control switch 4 is used to control the start of the first driving cylinder 52, the second driving cylinder 55 and the third driving cylinder 331. In order to facilitate the use of the staff, a placement hole 20 for storing the torque gun and a storage box 30 for placing small tools or parts, such as bolts, are provided on the equipment frame 1.

[0047] A method for installing a four-door hinge of an automobile, comprising the following steps: S1, when the vehicle body 40 moves to below the fixture frame 1 on the production line, the electric hoist is started to lower the fixture frame 1 to a position close to the vehicle body 40 and a certain distance outside the vehicle body 40; S2, installing the front door female hinge 50 and the rear door female hinge 50 on the equipment frame 1 in sequence through the hinge positioning structure 5; S3, the staff assists in pushing the harness frame 1 toward the vehicle body 40. During the movement of the harness frame 1, the plurality of guide plates 22 and the guide inclined plates 25 cooperate to guide the harness frame 1 in its moving direction, and the harness frame 1 is continuously pushed until the first positioning pin 31 is inserted into the corresponding pin hole on the vehicle body 40, and the first abutting block 23 abuts against the vehicle body 40, and at this time, the third abutting block 10 also abuts against the vehicle body 40; S4, the first driving assembly 33 drives the clamping block 32 to rotate to abut against the vehicle body 40, so that the first abutting block 23 and the clamping block 32 clamp the vehicle body 40, thereby completing the fixing of the entire mounting frame 1 on the vehicle body 40, and at the same time achieving the initial positioning of the female hinge 50 at the installation position on the vehicle body 40; S5, the staff observes whether the female hinges 50 on the front door and the rear door correspond to the corresponding installation positions on the vehicle body 40, and adjusts the installation parallelism of the front door female hinge 50 and the rear door female hinge 50 through the adjustment structure 6. After the adjustment is completed, the staff uses a torque gun to tighten the bolts to fix the female hinge 50 on the vehicle body 40. In the process of tightening the bolts, two bolts need to be tightened on one female hinge 50, and one of the bolts is installed from the outside of the vehicle body 40 provided with the fixture frame 1, and the other bolt is installed from the inside of the vehicle body 40; S6, after all the female hinges 50 are installed, the first driving cylinder 52 drives the support block 53 to move downward, and the second driving cylinder 55 drives the second positioning pin 56, the first limiting clamp block 57, the second limiting clamp block 58 and the sliding seat 54 to move upward as a whole, so that the support block 53, the second positioning pin 56, the first limiting clamp block 57 and the second limiting clamp block 58 are all separated from the female hinge 50; S7, the clamping block 32 is driven to rotate and open again by the first driving assembly 33, and the staff pulls the fixture frame 1 outward to make the fixture frame 1 away from the vehicle body 40, and then the electric hoist is started to lift the entire fixture above the vehicle body 40. Then, the staff installs the front door and the rear door on the vehicle body 40 one by one. After the assembly is completed, the vehicle body 40 continues to move to the next process on the production line.

[0048] The implementation principle of the embodiment of the present application is as follows: when in use, the entire harness is first moved down to the outside of the vehicle body 40 by an electric hoist, and then the staff places the four female hinges 50 on the corresponding positions of the harness frame 1 respectively, and clamps and positions them through the hinge positioning structure 5, and then the staff pushes the harness frame 1 in the direction close to the vehicle body 40, and under the guidance of the guide structure 2, the harness frame 1 is gradually moved to the vicinity of the vehicle body 40 until the first abutting block 23 abuts against the vehicle body 40, and then the first driving component 33 is started to drive the clamping block 32 to clamp the vehicle body 40, so as to position the harness frame 1 on the vehicle body 40, and at the same time, the female hinge 50 is initially positioned at the designated installation position on the vehicle body 40. After that, the parallelism of the female hinges 50 corresponding to the front door and the rear door on the vehicle body 40 can be calibrated by adjusting the structure 6 until it meets the standard, and then the bolts can be tightened by a torque gun to install the female hinges 50 on the vehicle body 40. After all four female hinges 50 are installed, the piston rods of the first driving cylinder 52, the second driving cylinder 55 and the third driving cylinder 331 are controlled by the control switch 4 to restore the state, so that the female hinge 50 is separated from the fixture frame 1, and then the staff pulls the fixture frame 1 outward to separate the fixture frame 1 from the vehicle body 40, and finally the male hinge on the door is assembled with the female hinge 50 on the vehicle body 40 to complete the installation of the door.

[0049] Embodiment 2: Reference Fig.10 and Fig.11 The difference between this embodiment and the first embodiment is that the guide plate 22 is slidably connected to the first fixing seat 21, and a return spring 26 is arranged between the guide plate 22 and the first fixing seat 21, one end of the return spring 26 is fixed to the end of the guide plate 22, and the other end of the return spring 26 is fixed to the first fixing seat 21; when the mounting frame 1 is pushed toward the vehicle body 40, the guide inclined plate 25 and the door frame side wall on the vehicle body 40 first contact, so that under the guidance of the guide inclined plate 25, the return spring 26 is gradually compressed, and as the guide plate 22 abuts against the door frame side wall, the guide plate 22 can be pushed against the door frame of the vehicle body 40 under the action of the return spring 26, thereby ensuring the stability of the mounting frame 1 positioned on the vehicle body 40.

[0050] Reference Fig.10 and Fig.12In this embodiment, the mounting frame 1 is composed of a bottom crossbeam 11, a lateral upright 12, and a middle connecting crossbeam 13, wherein a slide rail 14 is fixed on the bottom crossbeam 11, and the length direction of the slide rail 14 is parallel to the length direction of the bottom crossbeam 11, and a slide seat 15 is arranged on the bottom crossbeam 11, and two slide seats 15 are arranged, and the two slide seats 15 are symmetrically arranged at both ends of the length direction of the bottom crossbeam 11, and the slide seat 15 is slidably matched with the slide rail 14, and the number of lateral uprights 12 is the same as that of the slide seats 15 and is distributed one-to-one with the slide seats 15, and the bottom end of the lateral upright 12 is hinged on the slide seat 15.

[0051] Reference Fig. 9 and Fig.11 The middle connecting crossbeam 13 is located between the two lateral uprights 12, and the two ends of the middle connecting crossbeam 13 are respectively hinged with the lateral uprights 12 on the corresponding sides, the middle connecting crossbeam 13 includes a first rod body 131, a second rod body 132 and an adjusting rod body 133, the adjusting rod body 133 is located between the first rod body 131 and the second rod body 132, one end of the adjusting rod body 133 is threadedly connected to the first rod body 131, and the other end of the adjusting rod body 133 is threadedly connected to the second rod body 132, and the first rod The thread rotation directions of the body 131 and the second rod body 132 are opposite, the end of the first rod body 131 away from the adjusting rod body 133 is hinged to the lateral upright pole 12 on the corresponding side, and the end of the second rod body 132 away from the adjusting rod body 133 is hinged to the other lateral upright pole 12; when in use, the staff can make the first rod body 131 and the second rod body 132 slide relative to each other by screwing the adjusting rod body 133, so as to change the length of the middle connecting beam 13, thereby driving the lateral upright poles 12 on both sides to slide or rotate.

[0052] Reference Fig.10 and Fig.12 Two groups of guide plates 22 are located on the bottom crossbeam 11, and the other two groups of guide plates 22 are respectively located on a group of lateral uprights 12. The fixture positioning structure 3, the adjustment structure 6 and the hinge positioning structure 5 are all located on the lateral uprights 12. The middle connecting crossbeam 13 is located between the two groups of hinge positioning structures 5 on the second mounting plate 8, and the four groups of first abutment blocks 23 are correspondingly distributed on both sides of the middle connecting crossbeam 13. A hook 16 is provided at the top of each lateral upright 12, and the hook 16 is used to connect the lifting device of the electric hoist.

[0053] Reference Fig.10 and Fig.12When in use, the lateral uprights 12 on both sides are moved away from each other by screwing the adjusting rod body 133 until the guide plate 22 is tightly against the door frame of the vehicle body 40, and the two first abutment blocks 23 and the clamping blocks 32 above the middle connecting beam 13 are controlled to be clamped and fixed on the vehicle body 40. At this time, the adjusting rod body 133 is continued to be rotated, and the upper ends of the lateral uprights 12 are rotated toward the inner sides of the two groups of lateral uprights 12, and the sliding seats 15 at the lower ends of the lateral uprights 12 slide outward, so that the two lateral uprights 12 can be gradually tilted into an inner eight-shaped shape, and then cooperated with the adjusting structure 6 to adapt to different models of vehicle bodies 40.

[0054] Reference Fig.10 and Fig.12 After the guide plate 22 is tightly pressed against the door frame of the vehicle body 40, if the two first abutting blocks 23 and the clamping blocks 32 below the middle connecting cross beam 13 are controlled to be clamped and fixed on the vehicle body 40, the adjusting rod body 133 is rotated, and the upper ends of the lateral uprights 12 are rotated toward the outsides of the two groups of lateral uprights 12, and the slide seats 15 at the lower ends of the lateral uprights 12 slide inwardly, so that the state of the two lateral uprights 12 gradually tilts to an outer eight-shaped shape; and when the first abutting blocks 23 and the clamping blocks 32 above and below the middle connecting cross beam 13 are separated from the vehicle body 40, the adjusting rod body 133 is rotated to make the two groups of lateral uprights 12 gradually approach the A-pillar and B-pillar on the vehicle body 40, until the guide plates 22 on the two groups of lateral uprights 12 are all abutted against the side walls of the door frame of the vehicle body 40, the positioning of the mounting frame 1 and the vehicle body 40 can be achieved, and the overall use is more convenient.

[0055] Reference Fig.10 and Fig.12 In this embodiment, when the harness frame is not in use, the rod body 133 can be screwed and adjusted, and the two lateral uprights 12 can be rotated with the assistance of the staff to make the two lateral uprights 12 rotate to the same side until the lateral uprights 12, the middle connecting beam 13 and the bottom beam 11 are folded together, so as to facilitate the storage of the harness frame. When it is needed, it is only necessary to lift the tops of the two lateral uprights 12 by the electric hoist. Under the action of gravity and the auxiliary guidance of the staff, the lateral uprights 12, the middle connecting beam 13 and the bottom beam 11 can be restored to their original state, and the overall use is more convenient.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A four-door hinge installation tool for a car, characterized in that: The invention comprises a fixture frame (1) hoisted above a production line, wherein the fixture frame (1) is provided with a guide structure (2) for guiding the fixture frame (1) to move close to a vehicle body (40), a fixture positioning structure (3) for positioning the fixture frame (1) on the vehicle body (40), a control switch (4) for controlling the fixture positioning structure (3), and a hinge positioning structure (5), wherein two groups of hinge positioning structures (5) are provided, wherein one group of hinge positioning structures (5) is used to install a front door female hinge (50), and the other group of hinge positioning structures (5) is used to install a rear door female hinge (50), and the fixture frame (1) is provided with an adjustment structure (6) for adjusting the installation parallelism of the front door female hinge (50) and the rear door female hinge (50).

2. The four-door hinge installation tool for automobiles according to claim 1, characterized in that: The guide structure (2) comprises a first fixing seat (21) fixed on the tool frame (1), a guide plate (22) fixed on an end of the first fixing seat (21) away from the tool frame (1), and a first abutment block (23) fixed on the tool frame (1). The first fixing seat (21) and the guide plate (22) are both provided in plurality. The guide plates (22) are provided in one-to-one correspondence with the first fixing seat (21). The plurality of guide plates (22) are provided at intervals along the circumference of the door frame on the vehicle body (40). The guide plate (22) is provided with an anti-wear layer (24). The first abutment block (23) abuts and cooperates with the vehicle body (40).

3. The mounting device for four-door hinges of an automobile according to claim 2, characterized in that: A guide inclined plate (25) is provided at one end of the guide plate (22) away from the harness frame (1).

4. The mounting device for four-door hinges of an automobile according to claim 2, characterized in that: The tool positioning structure (3) comprises a first positioning pin (31) fixed on the tool frame (1), a clamping block (32) rotatably arranged on the tool frame (1), and a first driving assembly (33) arranged on the tool frame (1) for driving the clamping block (32) to rotate; the clamping block (32) is in abutment with a vehicle body (40), and after the clamping block (32) rotates, a clamping space for clamping and fixing the vehicle body (40) is formed between the clamping block (32) and the first abutment block (23); and the control switch (4) is used to control the start-up of the first driving assembly (33).

5. The mounting device for four-door hinges of an automobile according to claim 1, characterized in that: The adjustment structure (6) comprises a second fixing seat (61) and a third fixing seat (62) fixed on the equipment frame (1), a first mounting plate (63) rotatably arranged on the second fixing seat (61), a second abutting block (64) fixed on the third fixing seat (62), a first pad (65) arranged between the second abutting block (64) and the third fixing seat (62), an adjustment bolt (66) fixed on the third fixing seat (62), and an abutting nut (67) threadedly connected to the adjustment bolt (66), a limiting hole is provided on the first mounting plate (63), one end of the adjustment bolt (66) passes through the limiting hole and is connected to the abutting nut (67), the second abutting block (64) abuts against the side wall of the first mounting plate (63), and the abutting nut (67) abuts against the side wall of the first mounting plate (63) away from the second abutting block (64).

6. The mounting device for four-door hinges of an automobile according to claim 5, characterized in that: A connecting plate (7) is fixed on the first mounting plate (63); a second mounting plate (8) is arranged at one end of the connecting plate (7) away from the first mounting plate (63); a second pad (9) is arranged between the connecting plate (7) and the first mounting plate (63); a plurality of groups of mounting holes (81) are opened on the second mounting plate (8); the plurality of groups of mounting holes (81) are evenly spaced along the length direction of the second mounting plate (8); a mounting bolt is arranged on the connecting plate (7); one end of the mounting bolt passes through the connecting plate (7) and is threadedly connected to one of the groups of mounting holes (81); and the hinge positioning structure (5) is arranged on the second mounting plate (8).

7. The mounting device for four-door hinges of an automobile according to claim 6, characterized in that: The hinge positioning structure (5) comprises a fourth fixing seat (51) fixed on the second mounting plate (8), a first driving cylinder (52) fixed on the fourth fixing seat (51), a supporting block (53) arranged on the piston rod of the first driving cylinder (52), a sliding seat (54) slidingly arranged on the second mounting plate (8), a second driving cylinder (55) arranged on the second mounting plate (8) for driving the sliding seat (54) to slide, a second positioning pin (56) fixed on the sliding seat (54), and a first limiting clamping block (57) and a second limiting clamping block (58) fixed on the sliding seat (54); a limiting space for limiting the female hinge (50) is formed between the supporting block (53), the sliding seat (54), the first limiting clamping block (57) and the second limiting clamping block (58); the second positioning pin (56) is plug-fitted with a hinge hole on the female hinge (50) for mounting a male hinge.

8. The mounting device for four-door hinges of an automobile according to claim 7, characterized in that: The fourth fixing seat (51) is provided with a third abutment block (10), and the third abutment block (10) abuts and cooperates with the vehicle body (40).

9. A method for installing a four-door hinge of an automobile, implemented by using the four-door hinge installation tool of any one of claims 1 to 8, characterized in that: The steps include: S1. When the vehicle body (40) is moved to a designated position, the mounting frame (1) is lowered to a position close to the vehicle body (40) by hoisting; S2, installing the front door female hinge (50) and the rear door female hinge (50) on the mounting frame (1) in sequence through the hinge positioning structure (5); S3, the staff assists in pushing the mounting frame (1), and under the action of the guide structure (2), the mounting frame (1) approaches the vehicle body (40) and completes the initial positioning with the vehicle body (40), and then continues to push the mounting frame (1) until the first positioning pin (31) is inserted into the corresponding position on the vehicle body (40), and the first abutment block (23) abuts against the vehicle body (40); S4, driving the clamping block (32) to rotate to abut against the vehicle body (40) through the first driving assembly (33), thereby clamping the vehicle body (40) through the first abutting block (23) and the clamping block (32), thereby completing the positioning of the female hinge (50) at the installation position on the vehicle body (40); S5. The installation parallelism of the front door female hinge (50) and the rear door female hinge (50) is adjusted by means of the adjustment structure (6). After the adjustment is completed, the staff uses a torque gun to bolt the female hinge (50) to the vehicle body (40); S6, after all the female hinges (50) are installed, the first driving cylinder (52) and the second driving cylinder (55) drive the support block (53) and the second positioning pin (56), the first limiting clamp block (57) and the second limiting clamp block (58) to separate from the female hinge (50); S7. The whole of the fixture is lifted up by hoisting until it is completely separated from the vehicle body (40), and the vehicle body (40) continues to move to the next process on the production line.

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