Back door hinge adjustment device

Abstract

The utility model relates to the technical field of automobile assembly, disclose a back door hinge adjusting device, including hinge's clamping adjusting mechanism, pre -adjusting mechanism and screw tightening gun, clamping adjusting mechanism includes the clamping module and fitting module, the fitting module includes the fitting block of linear movement fitting hinge, the clamping module includes the clamping block of rotary fitting hinge, the fitting block and clamping block are located the opposite side of hinge, the fitting block and clamping block can move the position of adjusting hinge simultaneously, the screw tightening gun is used for adjusting the tightness of hinge's screw, pre -adjusting mechanism includes the adjusting piece of setting in the end of stand through L type connecting arm, the utility model discloses the full -automatic adjustment of automobile back door hinge is to match the installation position of hinge on the car body.

Description

Technical Field

[0001] This utility model relates to the field of automotive assembly technology, specifically to a tailgate hinge adjustment device. Background Technology

[0002] In the automotive manufacturing industry, the assembly precision of the tailgate to the vehicle body directly affects the overall vehicle's sealing performance, noise control, and appearance matching. The tailgate connects to the vehicle body via two hinges. Due to production errors and the hinges' own manufacturing tolerances, the mounting holes of the tailgate hinges often deviate from the mounting brackets on the vehicle body before assembly, making direct alignment impossible. Therefore, before the tailgate is finally assembled onto the vehicle body, the hinge positions need to be precisely adjusted to ensure that the center line of its shaft holes perfectly coincides with the mounting position on the vehicle body. Otherwise, problems such as difficulty in closing the tailgate, uneven gaps, or sealing failure may occur.

[0003] Currently, the industry mostly uses semi-automatic or manual devices to adjust rear door hinges. Common adjustment devices typically include a centering platform for clamping and fixing the rear door, and an adjustment station for the hinge. This station usually has a movable screw tightening tool, which is manually moved to the hinge screw by the operator or driven by a control button. The screw is loosened first, and then the operator, relying on experience or simple measuring tools, judges the adjustment direction and distance, moving the hinge by prying or tapping it with a tool. Finally, the screw is tightened to complete the positioning. Some more advanced equipment uses simple pneumatic or electric drives, giving the screw tightening tool basic forward and backward movement, achieving a certain degree of automation. However, the actual hinge adjustment still relies on human experience.

[0004] The aforementioned hinge adjustment devices mostly rely on manual operation or simple mechanical structures, requiring manual intervention in multiple steps, such as manually adjusting the hinge position and manually tightening screws, which not only increases labor intensity but also reduces assembly efficiency. Utility Model Content

[0005] The present invention aims to provide a tailgate hinge adjustment device to achieve fully automatic adjustment of the tailgate hinge of a car to match the installation position of the hinge on the car body.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A rear door hinge adjustment device includes a hinge clamping and adjusting mechanism, a pre-adjustment mechanism, and a screw tightening gun. The clamping and adjusting mechanism includes a bonding module and a clamping module. The bonding module includes a bonding block that linearly moves to bond with the hinge, and the clamping module includes a clamping block that rotates to bond with the hinge. The bonding block and the clamping block are located on opposite sides of the hinge, and the bonding block and the clamping block can move simultaneously to adjust the position of the hinge. The screw tightening gun is used to adjust the tightness of the hinge screws. The pre-adjustment mechanism includes a column and an adjusting member disposed at the end of the column via an L-shaped connecting arm.

[0007] The principle and advantages of this scheme are: 1. Before the door is fixed to the centering platform, the hinge position is initially adjusted to ensure that the bonding block can accurately fit the hinge after the tailgate is fixed to the centering platform. The cylinder drives the bonding module and clamping module. After the tailgate is fixed to the centering platform, each module operates sequentially according to a preset program. The bonding module moves upward to fit the lower surface of the hinge, then the clamping module rotates to the opposite side of the hinge to clamp it. A screw tightening gun first loosens the hinge screws, then the bonding module and clamping module move together, driving the hinge to move and achieving fine-tuning of the hinge position. After adjustment, the screw tightening gun tightens the hinge screws to fix the adjusted hinge. Finally, the assembly gripper picks up the tailgate and installs it onto the vehicle body. This automates the tailgate hinge adjustment, ensuring high consistency of action, reducing manual intervention, and greatly improving assembly efficiency.

[0008] 2. The bonding module is tilted, and the mating surfaces of the bonding block and the clamping block are also tilted. This is a targeted adjustment for the position of the rear door hinge, ensuring that the bonding block and the clamping block form surface contact with both sides of the hinge, thereby improving the stability of the hinge clamping.

[0009] 3. The bonding block of the bonding module is slidably connected to the bonding module base, and is driven by a servo linear slide to achieve linear movement; the clamping module's rotating arm is driven by a cylinder to rotate, which drives the clamping block to adjust its position. The two are set independently, but work together to clamp and fix the hinge. By bonding first and then clamping, the bonding module and clamping module can be flexibly adjusted according to the actual position and state of the hinge, ensuring the clamping and fixing effect of the hinge, and also providing operating space for precise adjustment of the hinge position.

[0010] 4. This hinge adjustment device is designed for adjusting the position of a single hinge and is equipped with two independent screw tightening guns. The drive module enables precise and synchronous operation. The dual-gun design matches the hinge's dual-screw fixing requirements, allowing for the simultaneous loosening or tightening of two screws, significantly improving adjustment efficiency.

[0011] Preferably, as an improvement, the bonding module further includes a bonding module base and a push block, wherein the bonding block is movably connected to the bonding module base via the push block.

[0012] Technical effect: The above settings in this solution facilitate the active and precise movement of the bonding block a certain distance based on the detection results of the vision module, so as to accurately bond to one side of the hinge.

[0013] Preferably, as an improvement, the clamping module further includes a clamping module base and a clamping module rotating arm, one end of the clamping module rotating arm is rotatably connected to the clamping module base, the other end of the clamping module rotating arm is connected to one end of the clamping support arm, and the clamping block is connected to the other end of the clamping support arm.

[0014] Technical effect: This solution adopts the above-mentioned setting and uses a rotating arm structure. When not in use, it can rotate away to avoid interference; when in use, it rotates to the hinge side and cooperates with the movable contact block below to firmly clamp the hinge from above and below, providing a stable and controllable gripping point for subsequent adjustment of the hinge position.

[0015] Preferably, as an improvement, the screw tightening gun is mounted on the support via an installation module. The installation module includes a fixed base and a mounting bracket. One end of the mounting bracket is connected to the support, and the fixed base is connected to the other end of the mounting bracket. The screw tightening gun is fixedly connected to the fixed base.

[0016] Technical effect: This solution adopts the above settings, and through the combination design of the fixed base and the mounting bracket, it ensures the stable installation and precise movement of the screw tightening gun.

[0017] Preferably, as an improvement, the support includes a horizontal base plate and an inclined plate, the base plate and the inclined plate are fixedly connected, and a reinforcing rib is provided between the base plate and the inclined plate.

[0018] Technical effects: The above-mentioned configuration provides the required installation angle for the drive module and adjustment module with the inclined plate, which facilitates the adjustment of the hinge and the connection and coordination between the components. The reinforcing ribs significantly enhance the overall rigidity and vibration resistance of the support.

[0019] Preferably, as an improvement, the inclined plate of the support is provided with a drive module for moving the screw tightening gun. The drive module includes an electric linear slide, a track slide and a moving plate. The electric linear slide and the track slide are arranged parallel to each other on the inclined plate. The moving plate is connected to both the electric linear slide and the track slide. The mounting bracket is fixedly connected to the moving plate.

[0020] Technical benefits: With the above-mentioned setup, the electric linear slide provides precise and controllable linear displacement, ensuring that the screw tightening gun can accurately position the screw. The moving plate is connected to both the electric linear slide and the track slide, with the track slide playing an auxiliary role in movement, ensuring the stability of the moving plate during movement. This, in turn, ensures that the screw tightening gun will not deviate or shake during movement, improving the accuracy of adjustment.

[0021] Preferably, as an improvement, the inclined plate is provided with a limiting module, the limiting module including a limiting module base and a limiting block, one end of the limiting module base is connected to the inclined plate, and the limiting block is connected to the other end of the limiting module base.

[0022] Technical benefits: The above-mentioned setup provides a reliable reference position for the back door, ensuring that the back door is in almost the same position each time. This guarantees the accuracy of subsequent hinge clamping, fixing, and adjustment, and reduces adjustment deviations caused by initial position deviations. The limit block is made of flexible material, which avoids scratching or bumping the paint surface of the back door during the positioning process, demonstrating protection for product quality.

[0023] Preferably, as an improvement, it further includes a fixing module for fixing the back door, the fixing module including a fixing module base, a fixing module rotating arm, a fixing support arm, a fixing pressure block and a fixing block, one end of the fixing module rotating arm is fixedly connected to the fixing module base, one end of the fixing support arm is connected to the other end of the fixing module rotating arm, the fixing pressure block is connected to the other end of the fixing support arm, the fixing block is fixedly connected to the fixing module base, and the fixing pressure block is located above the fixing block.

[0024] Technical effect: This solution adopts the above settings, and through the cooperation of the fixed pressure block and the fixed block, it can achieve fast and stable clamping of the back door. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0026] Figure 2 This is a structural schematic diagram of a portion of an embodiment of the present utility model.

[0027] Figure 3 This is a schematic diagram of the structure from another perspective of an embodiment of the present utility model.

[0028] Figure 4 This is a front view of the bonding module and clamping module of this utility model.

[0029] Figure 5 This is a schematic diagram of the bonding module and clamping module of this utility model.

[0030] Figure 6This is a schematic diagram of the structure of the adjustment module of this utility model.

[0031] Figure 7 This is a structural schematic diagram of the adjustment module of this utility model from another perspective.

[0032] Figure 8 This is a schematic diagram of the drive module of this utility model.

[0033] The reference numerals in the accompanying drawings include: adjusting component 1, connecting arm 11, column 2, fixing module 3, fixing module base 31, fixing module rotating arm 32, fixing module rotating shaft 321, fixing support arm 33, fixing pressure block 34, fixing block 35, bonding module 4, bonding module base 41, push block 42, bonding block 43, clamping module 5, clamping module base 51, clamping module rotating arm 52, clamping module rotating shaft 521, clamping support arm 53, clamping block 54, support 6, base plate 61, inclined plate 62, screw tightening gun 7, mounting module 71, fixing seat 711, mounting bracket 712, drive module 72, electric linear slide 721, track slide 722, moving plate 723, limit module 8, limit module base 81, limit block 82. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method: Example The basics are as follows: Figure 1-8 As shown: A tailgate hinge adjustment device is provided for adjusting the position of the tailgate hinge on the assembly line of a car tailgate. It needs to be used in conjunction with a centering platform to fix the car tailgate. In this embodiment, the tailgate hinge is adjusted on the basis of the fixed tailgate. Moreover, this embodiment has a one-to-one correspondence with the hinge, that is, this embodiment only involves the adjustment of one tailgate hinge. Usually, there are two hinges on the car tailgate, so two tailgate hinge adjustment devices are required.

[0035] like Figure 2-3 As shown, the rear door hinge adjustment device includes a clamping and adjusting mechanism for the hinge, a pre-adjustment mechanism, and a screw tightening gun 7. The clamping and adjusting mechanism includes a bonding module 4 and a clamping module 5. The bonding module 4 includes a bonding block 43 that moves linearly to bond with the hinge, and the clamping module 5 includes a clamping block 54 that rotates to bond with the hinge. The bonding block 43 and the clamping block 54 are located on opposite sides of the hinge. The bonding block 43 approaches the hinge from one side, and the clamping block 54 then rotates to approach the hinge from the opposite side, together achieving the effect of fixing the hinge. The screw tightening gun 7 is used to adjust the tightness of the hinge screws. The working end of the screw tightening gun 7 moves linearly to align with the hinge screws, loosening or tightening the screws. When the screws are loosened, the bonding block and the clamping block can move simultaneously to adjust the position of the hinge.

[0036] like Figure 4-5 As shown, the bonding module 4 also includes a bonding module base 41 and a push block 42. The bonding block 43 is movably connected to the bonding module base 41 via the push block 42. The bonding module base 41 is equipped with a servo linear slide to drive the push block 42 to move linearly. The push block 42 then drives the bonding block 43 to move linearly, bonding one side of the hinge. The clamping module 5 also includes a clamping module base 51 and a clamping module rotating arm 52. The clamping module base 51 is equipped with a cylinder to drive the clamping module rotating arm 52 to rotate. One end of the clamping module rotating arm 52 is rotatably connected to the clamping module base 51, and the other end of the clamping module rotating arm 52 is connected to one end of the clamping support arm 53. The clamping block 54 is connected to the other end of the clamping support arm 53.

[0037] Furthermore, such as Figure 4 As shown, in order to accommodate the position of the rear door hinge, the bonding module 4 is tilted, and the mating surfaces of the bonding block 43 and the clamping block 54 are also tilted.

[0038] like Figure 6-7 As shown, the screw tightening gun 7 is mounted on the support 6 via a mounting module 71. The mounting module 71 includes a fixed base 711 and a mounting bracket 712. One end of the mounting bracket 712 is connected to the support 6, and the other end of the fixed base 711 is connected to the mounting bracket 712. The screw tightening gun 7 is fixedly connected to the fixed base 711. The support 6 includes a horizontal base plate 61 and an inclined plate 62. The base plate 61 and the inclined plate 62 are welded and fixed together. A reinforcing rib is provided between the base plate 61 and the inclined plate 62. The inclined plate 62 is equipped with a drive module 72 for moving the screw tightening gun 7. Furthermore, since each hinge is fixed by two screws, there are two screw tightening guns 7. The screw tightening guns 7 correspond one-to-one with the hinge screws, and both screw tightening guns 7 are sequentially fixed to both sides of the drive module 72 via the fixed base 711 and the mounting bracket 712.

[0039] like Figure 8 As shown, the drive module 72 is fixedly connected to the inclined plate 62. The drive module 72 includes an electric linear slide 721, a track slide 722, and a moving plate 723. The electric linear slide 721 and the track slide 722 are arranged parallel to each other on the inclined plate 62. The moving plate 723 is connected to both the electric linear slide 721 and the track slide 722. Figure 7 As shown, the two screw tightening guns 7 are sequentially fixedly connected to both sides of the inclined plate 62 via the fixing base 711 and the mounting bracket 712. like Figure 8As shown, a limiting module 8 is provided on the inclined plate 62. The limiting module 8 is used to position the back door, so that the aforementioned fitting module 4, clamping module 5 and adjusting module 8 can match the position of the hinge. The limiting module 8 includes a limiting module base 81 and a limiting block 82. One end of the limiting module base 81 is connected to the inclined plate 62, and the limiting block 82 is connected to the other end of the limiting module base 81. The contact surface between the limiting block 82 and the back door is made of flexible material.

[0040] In this embodiment, the fixing module 3 is set on the centering platform (not shown in the figure). Multiple fixing modules 3 are arranged on the centering platform to work together to fix the back door. The fixing module 3 includes a fixing module base 31, a fixing module rotating arm 32, a fixing support arm 33, a fixing pressure block 34, and a fixing block 35. The fixing module base 31 is equipped with a cylinder to drive the fixing module rotating arm 32 to rotate. One end of the fixing module rotating arm 32 is fixedly connected to the fixing module base 31, one end of the fixing support arm 33 is connected to the other end of the fixing module rotating arm 32, the fixing pressure block 34 is connected to the other end of the fixing support arm 33, and the fixing block 35 is fixedly connected to the fixing module base 31. The fixing pressure block 34 is located above the fixing block 35. The fixing pressure block 34 and the fixing block 35 fit against the back door from both sides to achieve clamping and fixing of the back door.

[0041] like Figure 4 As shown, in this embodiment, the bonding module 4 is tilted and fixed on the fixing module 3.

[0042] like Figure 1 As shown, the column 2 is equipped with an adjusting component 1, which is set at the end of the column 2 via an L-shaped connecting arm 11. Before the back door is placed on the centering platform, the hinge on the back door may tilt outwards due to transportation or other issues, causing the fitting block 43 to fail to fit with the hinge. Therefore, initial adjustment is required. The handling gripper uses the adjusting component 1 to adjust the position of the hinge, causing it to rotate inwards relative to the back door, ensuring that the hinge's rotation position is in a position that can be clamped and adjusted.

[0043] This embodiment pertains to a workstation on the back door assembly line. In actual use, the clamping module 5 is rotated outwards, the bonding block 43 of the bonding module 4 is at its lowest position, and the screw tightening gun 7 is also at its lowest position. The transport gripper moves the back door pre-installed with the hinge to the centering platform, where the fixing module 3 clamps and fixes the back door. The bonding block 43 of the bonding module 4 moves upwards a certain distance until it is in contact with the lower surface of the hinge. Then, the clamping block 54 of the clamping module 5 rotates around the clamping module pivot 521 to the upper surface of the hinge, and the two work together to clamp the hinge. Then, driven by the drive module 72, the two screw tightening guns 7 move simultaneously towards the hinge. The working ends of the two screw tightening guns 7 are aligned with the two screws on the hinge, loosening them so that the hinge can move slightly relative to the tailgate. After loosening, the two screw tightening guns 7 move away from the screws, and the fitting module 4 and the clamping module 5 work simultaneously to adjust the position of the hinge so that it matches the hinge installation position on the vehicle body. Then, the two screw tightening guns 7 move towards the screws again to tighten them. After tightening, the screw tightening guns 7 move away, and the hinge adjustment is complete. Finally, the tailgate is moved to the vehicle body for installation using the assembly gripper on the assembly line.

[0044] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A rear door hinge adjustment device, characterized in that: The device includes a hinge clamping and adjusting mechanism, a pre-adjustment mechanism, and a screw tightening gun. The clamping and adjusting mechanism includes a bonding module and a clamping module. The bonding module includes a bonding block that linearly moves to bond with the hinge, and the clamping module includes a clamping block that rotates to bond with the hinge. The bonding block and the clamping block are located on opposite sides of the hinge, and the bonding block and the clamping block can move simultaneously to adjust the position of the hinge. The screw tightening gun is used to adjust the tightness of the screws on the hinge. The pre-adjustment mechanism includes a column and an adjusting component located at the end of the column via an L-shaped connecting arm.

2. The rear door hinge adjustment device according to claim 1, characterized in that: The bonding module also includes a bonding module base and a push block, and the bonding block is movably connected to the bonding module base via the push block.

3. The rear door hinge adjustment device according to claim 1, characterized in that: The clamping module also includes a clamping module base and a clamping module rotating arm. One end of the clamping module rotating arm is rotatably connected to the clamping module base, and the other end of the clamping module rotating arm is connected to one end of the clamping support arm. The clamping block is connected to the other end of the clamping support arm.

4. The rear door hinge adjustment device according to claim 1, characterized in that: The screw tightening gun is mounted on the support via an installation module. The installation module includes a fixed base and a mounting bracket. One end of the mounting bracket is connected to the support, and the fixed base is connected to the other end of the mounting bracket. The screw tightening gun is fixedly connected to the fixed base.

5. A rear door hinge adjustment device according to claim 4, characterized in that: The support includes a horizontal base plate and an inclined plate, the base plate and the inclined plate are fixedly connected, and a reinforcing rib is provided between the base plate and the inclined plate.

6. A rear door hinge adjustment device according to claim 5, characterized in that: The inclined plate of the support is provided with a drive module for moving the screw tightening gun. The drive module includes an electric linear slide, a track slide and a moving plate. The electric linear slide and the track slide are arranged parallel to each other on the inclined plate. The moving plate is connected to both the electric linear slide and the track slide. The mounting bracket is fixedly connected to the moving plate.

7. A rear door hinge adjustment device according to claim 5, characterized in that: The inclined plate is provided with a limiting module, which includes a limiting module base and a limiting block. One end of the limiting module base is connected to the inclined plate, and the limiting block is connected to the other end of the limiting module base.

8. A rear door hinge adjustment device according to claim 1, characterized in that: It also includes a fixing module for fixing the back door. The fixing module includes a fixing module base, a fixing module rotating arm, a fixing support arm, a fixing pressure block, and a fixing block. One end of the fixing module rotating arm is fixedly connected to the fixing module base, one end of the fixing support arm is connected to the other end of the fixing module rotating arm, the fixing pressure block is connected to the other end of the fixing support arm, and the fixing block is fixedly connected to the fixing module base. The fixing pressure block is located above the fixing block.

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