Vehicle door hinge bearing force detection auxiliary device

Abstract

The invention belongs to the technical field of vehicle door hinge bearing force detection, and particularly relates to a vehicle door hinge bearing force detection auxiliary device which comprises a base, a mounting frame is fixed outside the base and used for fixing a negative hinge of a hinge body, a rotating disc is rotationally arranged on the base, and a fixing assembly is installed on the rotating disc. The fixing assembly is used for being fixed to a male hinge of the hinge body, and a driving assembly is further arranged on the mounting frame. A horizontally-extending push rod is arranged in the fixing assembly, the driving assembly is provided with two arc-shaped electric guide rails fixed to the mounting frame, connecting frames are connected to the lower portions of the arc-shaped electric guide rails, the two connecting frames are located on the two sides of the push rod, and the positions, facing the push rod, of the connecting frames are provided with collision rods. According to the invention, the bearing force is detected when the positive hinge is actively driven to rotate, and the bearing force of natural swing of the positive hinge with load is detected, so that the accuracy and effectiveness of the bearing force detection of the hinge main body are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of door hinge bearing force detection, and particularly relates to an auxiliary device for door hinge bearing force detection. Background Art

[0002] A door hinge is a component structure that fixedly connects a door to a vehicle body, and is composed of a female hinge, a male hinge, and a hinge pin. In a door hinge production system, it is necessary to perform detection operations on the bearing force of the hinge.

[0003] Referring to the Chinese patent with the patent publication number CN117169003B, there is disclosed an auxiliary device for door hinge bearing force detection, which includes a base. The base is fixedly connected with a support plate, the support plate is fixedly connected with a placement rack, the placement rack is fixedly connected with a first telescopic assembly, the telescopic end of the first telescopic assembly is fixedly connected with a limit rack, the limit rack is in limit cooperation with the placement rack, one side of the base is fixedly connected with a cylinder, the telescopic end of the cylinder is fixedly connected with a connecting rod, the other side of the base is fixedly connected with a first limit rod, the connecting rod is slidably connected with the first limit rod, and a first pressure sensor is fixedly connected to the middle of the connecting rod.

[0004] However, in the prior art, when detecting the bearing force of a door hinge and driving a part of the hinge to rotate, it can only be detected by the impact of driving rotation, and the accuracy of detecting the bearing force during the natural swing process of the hinge is poor. Summary of the Invention

[0005] Based on the technical problems in the background art, the present invention proposes an auxiliary device for door hinge bearing force detection.

[0006] An auxiliary device for door hinge bearing force detection proposed by the present invention includes a base, and an installation rack is fixed outside the base. The installation rack is used to fix the female hinge of the hinge main body. A turntable is rotatably arranged on the base, and a fixing component is installed on the turntable. The fixing component is used to fix the male hinge of the hinge main body. A driving component is also arranged on the installation rack. A horizontally extending push rod is arranged in the fixing component. The driving component is provided with two arc-shaped electric guide rails fixed to the installation rack. A connecting frame is connected below the arc-shaped electric guide rails. The two connecting frames are located on both sides of the push rod, and a striking rod is installed at a position of the connecting frame facing the push rod.

[0007] Preferably, one end of the striking rod close to the connecting frame extends horizontally, and a pressure sensor is connected between the striking rod and the connecting frame. The position of the striking rod far from the connecting frame extends vertically. The turntable, the arc-shaped electric guide rail, and the hinge main body are set to have the same rotation axis.

[0008] Preferably, a vertically downward extending mounting plate is installed in the mounting bracket. Two clamping blocks are fixed at the position of the mounting plate facing the hinge body. The clamping blocks are adapted to the preset holes of the female hinge of the hinge body. A linear electric actuator is horizontally installed at a position adjacent to the clamping blocks in the mounting plate. The end of the linear electric actuator is connected with a clamping sleeve, and a clamping groove is formed at one end of the clamping sleeve facing the clamping block.

[0009] Preferably, the linear electric actuator is connected with a current monitoring module I. The working current of the linear electric actuator is monitored through the current monitoring module I. If the working current of the linear electric actuator is abnormal, it indicates that looseness occurs between the female hinge and the mounting plate.

[0010] Preferably, a linear electric guide rail is installed on the turntable. A vertically upward extending fixing frame is connected to the linear electric guide rail. The push rod is installed at the top position of the fixing frame away from the hinge body. Two horizontally placed hydraulic cylinders are installed on the fixing frame facing the hinge body. The two hydraulic cylinders extend and retract towards the two sides of the fixing frame respectively. The end of the hydraulic cylinder is connected with a clamping plate.

[0011] Preferably, a positioning block is fixed at the position of the clamping plate facing the male hinge of the hinge body. The positioning block corresponds to the position of the preset hole on the male hinge. The distance between the two clamping plates is extended at the position corresponding to the hydraulic cylinder.

[0012] Preferably, the hydraulic cylinder is connected with a current monitoring module II. During the test, the current monitoring module II is used to monitor the working current of the hydraulic cylinder in real time. If the monitored current value of the current monitoring module II decreases abnormally, it indicates that looseness occurs between the clamping plate and the male hinge.

[0013] Preferably, an installation groove with a circular cross-section is formed at the position of the top of the base corresponding to the turntable. The outer diameter of the turntable is smaller than the inner diameter of the installation groove. Two limiting grooves are formed at the bottom of the turntable. A vertically upward extending cylinder is installed at the position of the bottom of the installation groove corresponding to the limiting groove. The top end of the cylinder is connected with a limiting block.

[0014] Preferably, a magnetic strip is installed at the periphery of the bottom of the turntable. A plurality of electromagnetic blocks are installed at the position of the bottom of the installation groove corresponding to the magnetic strip.

[0015] Preferably, the magnetic strip is arranged in a ring structure, and the plurality of electromagnetic blocks are distributed in a circular array in the installation groove.

[0016] The beneficial effects of the present invention are as follows: 1. In the present invention, when detecting the bearing capacity of a single hinge body, a turntable is used to improve stability and avoid deviation due to excessive load, which may affect the accuracy of the rotational bearing capacity detection. Two striking rods are distributed on both sides of the push rod, so that one of the striking rods pushes the push rod to move a certain distance and then allows the push rod to swing forward naturally. Thus, the bearing capacity is detected while actively driving the male hinge to rotate, and the bearing capacity of the male hinge swinging naturally under load is also detected, thereby improving the accuracy and effectiveness of the bearing capacity detection of the hinge body.

[0017] 2. In the present invention, the position of the female hinge is conveniently fixed by the adaptation of the clamping block and the clamping sleeve, and the position of the male hinge is conveniently and quickly positioned by the movable setting of the two clamping plates, thereby improving the convenience of the test and the operation efficiency.

[0018] 3. In the present invention, during the test, the electromagnetic block is electrified and magnetically attracted to the magnetic attraction strip. Thus, the controllability of the load adjustment of the turntable and the position of the male hinge is achieved by adjusting the energization of the electromagnetic block, and the horizontal stability of the turntable is maintained by using the annular magnetic attraction effect, thereby improving the effectiveness and accuracy of the rotational test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of the open state of the fixing component of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 2 FIG. is a schematic structural diagram of the closed state of the fixing component of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 3 FIG. is a schematic structural diagram of the striking rod and the push rod of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 4 FIG. is a schematic structural diagram of the driving component of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 5 FIG. is a schematic structural diagram of the position of the striking rod of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 6 FIG. is a schematic structural diagram of the position of the mounting plate of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 7 FIG. is a schematic structural diagram of the clamping block and the clamping sleeve of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 8 FIG. is a schematic structural diagram of the position of the clamping plate of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 9 FIG. is a schematic structural diagram of the bottom of the turntable of an auxiliary device for detecting the bearing capacity of a car door hinge proposed by the present invention; Figure 10Schematic structural diagram of the base of an auxiliary device for detecting the bearing force of a car door hinge proposed by the present invention; Figure 11 Schematic cross-sectional structural diagram of the installation groove position of an auxiliary device for detecting the bearing force of a car door hinge proposed by the present invention.

[0020] In the figure: 1 base, 2 mounting frame, 3 mounting plate, 4 hinge body, 5 turntable, 6 fixing component, 7 driving component, 8 arc-shaped electric guide rail, 9 connecting frame, 10 impact rod, 11 push rod, 12 clamping block, 13 electric push rod, 14 connecting plate, 15 extension rod, 16 bushing, 17 linear electric guide rail, 18 fixing frame, 19 hydraulic push rod, 20 clamping plate, 21 positioning block, 22 installation groove, 23 limiting groove, 24 magnetic strip, 25 cylinder, 26 limiting block, 27 electromagnetic block. Specific implementation manner

[0021] Example 1: Refer to Figures 1-8 , an auxiliary device for detecting the bearing force of a car door hinge, including a base 1. An installation frame 2 is fixed on the outer wall at one end of the base 1. The installation frame 2 is used to fix the female hinge of the hinge body 4. A horizontally placed turntable 5 is rotatably arranged on the base 1. A fixing component 6 is installed on the turntable 5. The fixing component 6 is used to fix with the male hinge of the hinge body 4. It should be noted that: the car door hinge is generally divided into a female hinge and a male hinge that are rotatably arranged with each other, and the female hinge is the part fixed to the vehicle body, and the male hinge is fixed between the door; a driving component 7 is also arranged on the installation frame 2; a horizontally extending push rod 11 is arranged in the fixing component 6. The push rod 11 horizontally extends from the fixing component 6 in a direction away from the hinge body 4. The driving component 7 is provided with two arc-shaped electric guide rails 8 fixed to the installation frame 2. A connecting frame 9 is connected below the arc-shaped electric guide rail 8. The two connecting frames 9 are located on both sides of the push rod 11. An impact rod 10 is installed at the position of the connecting frame 9 facing the push rod 11. One end of the impact rod 10 close to the connecting frame 9 horizontally extends, and a pressure sensor is connected between the impact rod 10 and the connecting frame 9. The position of the impact rod 10 away from the connecting frame 9 vertically extends. The turntable 5, the arc-shaped electric guide rail 8 and the hinge body 4 are set with the same rotation axis. It should be noted that: after the female hinge of the hinge body 4 is fixed to the installation frame 2, the rotating shaft between the female hinge and the male hinge vertically extends upward, and this rotating shaft is exactly in the same direction as the axis of the turntable 5 and the arc-shaped electric guide rail 8; when in use, the female hinge of the hinge body 4 is fixed to the installation frame 2, and the male hinge of the hinge body 4 is fixed through the fixing component 6 on the turntable 5, so that the male hinge can rotate and move around the rotating shaft between the male hinge and the female hinge along with the fixing component 6 and the turntable 5. The load-bearing effect on the male hinge is simulated by the fixing component 6, the turntable 5 and the additional load added on the turntable 5, and the stability during the test of a single car door hinge is ensured through the turntable 5, and the accuracy of the load rotation test on the rotating shaft between the male hinge and the female hinge is ensured; During the test, one of the striking rods 10 is used to push the push rod 11 on the fixed component 6, while the other striking rod 10 is located at a fixed position away from the push rod 11. During the process of the corresponding striking rod 10 pushing the push rod 11 to cause the male hinge to deflect under load, the pressure value is monitored through the pressure sensor connected to the end of the corresponding striking rod 10, and the current value of the corresponding arc-shaped electric guide rail 8 is monitored. If the pressure value and the current value are within the normal threshold range, it indicates that the bearing capacity of the produced car door hinge is within the compliance range; if the pressure value is too large or the current value is too large and exceeds the threshold, it indicates that the rotational resistance of the hinge body 4 under this load condition is too large, that is, the bearing capacity of the hinge body 4 is non-compliant; and after the striking rod 10 pushes the fixed component 6 and the male hinge to rotate a certain angle, the striking rod 10 stops moving. At this time, the other striking rod 10 is stationary on the other side of the push rod 11, so that the loaded male hinge naturally continues to swing forward under the action of inertia until the push rod 11 hits the other striking rod 10. If the monitoring value of the pressure sensor corresponding to the other striking rod 10 is normal, it indicates that the bearing capacity of the hinge body 4 is compliant; if the monitoring value of the pressure sensor corresponding to the other striking rod 10 is too small, it indicates that the natural rotational resistance of the hinge body 4 is too large, that is, its bearing capacity is non-compliant; In summary, when detecting the bearing capacity of a single hinge body 4, the stability is improved through the turntable 5 to avoid excessive load and deviation, which affects the accuracy of the rotational bearing capacity detection. The two striking rods 10 are distributed on both sides of the push rod 11, so that one of the striking rods 10 pushes the push rod 11 to move a certain distance and then allows the push rod 11 to swing forward naturally. Thus, the bearing capacity is detected while actively driving the male hinge to rotate, and the bearing capacity of the male hinge swinging naturally under load is also detected, thereby improving the accuracy and effectiveness of the bearing capacity detection of the hinge body 4.

[0022] In the present invention, an installation plate 3 extending vertically downward is installed in the mounting bracket 2. Two clamping blocks 12 are fixed at the position of the installation plate 3 facing the hinge body 4. The clamping blocks 12 are adapted to the preset holes of the female hinge of the hinge body 4, and the thickness of the clamping blocks 12 is greater than the thickness of the female hinge. It should be noted that: during the production process of the female hinge and male hinge of the car door hinge, preset holes or through grooves will be provided for fixing when the car door is installed and used. The setting of the clamping blocks 12 on the installation plate 3 is corresponding to the preset holes of the car door hinge; an electric push rod 13 is horizontally installed at a position adjacent to the clamping blocks 12 in the installation plate 3. The end of the electric push rod 13 is connected with a clamping sleeve 16. A clamping groove is opened at one end of the clamping sleeve 16 facing the clamping blocks 12. It should be noted that: a connecting plate 14 is installed at the end of the telescopic shaft of the electric push rod 13, and an extension rod 15 is fixed between the connecting plate 14 and the clamping sleeve 16; in the initial state, the electric push rod 13 drives the clamping sleeve 16 to extend outwards to separate the clamping sleeve 16 from the clamping blocks 12, so as to facilitate the staff to insert the holes on the female hinge corresponding to the clamping blocks 12 on the installation plate 3. Then, the electric push rod 13 moves the clamping sleeve 16 towards the clamping blocks 12 and makes the clamping sleeve 16 coincide with the ends of the clamping blocks 12, so as to clamp and fix the female hinge. Compared with the conventional method of manually tightening bolts to fix and test the female hinge, the convenience of testing, installing, disassembling the hinge body 4 is effectively improved, so as to improve work efficiency.

[0023] In the present invention, the electric push rod 13 is connected with a current monitoring module I. The working current of the electric push rod 13 is monitored through the current monitoring module I. If the working current of the electric push rod 13 decreases abnormally, it indicates that there may be looseness between the female hinge and the installation plate 3, and retesting is required. By monitoring the working currents of the two electric push rods 13, it is possible to infer whether the female hinge is fixed stably, so as to assist in determining the accuracy and effectiveness of the test.

[0024] In the present invention, a linear electric guide rail 17 is installed on the turntable 5. A fixing frame 18 extending vertically upward is connected to the linear electric guide rail 17. The push rod 11 is installed at the top position of the fixing frame 18 away from the hinge body 4. Two horizontally placed hydraulic push rods 19 are installed on the fixing frame 18 in the direction towards the hinge body 4. The push rod 11 is located above the two hydraulic push rods 19. The two hydraulic push rods 19 are arranged vertically. The two hydraulic push rods 19 respectively extend and retract towards both sides of the fixing frame 18. The end of the hydraulic push rod 19 is connected with a clamping plate 20. A positioning block 21 is fixed at the position of the clamping plate 20 facing the male hinge of the hinge body 4. The positioning block 21 corresponds to the position of a preset hole on the male hinge. The distance between the two clamping plates 20 is extended at the position corresponding to the hydraulic push rod 19 to facilitate the closing operation of the two clamping plates 20 through the two hydraulic push rods 19. In the initial state, the two clamping plates 20 are open, and the clamping plates 20 are moved outward away from the hinge body 4 through the linear electric guide rail 17. After the female hinge of the hinge body 4 is fixed, the male hinge is in the area between the two clamping plates 20. By moving the two clamping plates 20 towards the male hinge through the linear electric guide rail 17 and gradually closing the two clamping plates 20 through the hydraulic push rod 19, the male hinge can be corrected and positioned, so as to gradually position the male hinge at the initial position before the rotation test, thereby improving the accuracy and effectiveness of the subsequent test.

[0025] In the present invention, the hydraulic push rod 19 is connected with a current monitoring module II. During the test, the current monitoring module II is used to monitor the working current of the hydraulic push rod 19 in real time. If the monitored current value of the current monitoring module II decreases abnormally, it indicates that there may be looseness between the clamping plate 20 and the male hinge, and re-testing is required to further assist in determining the effectiveness and accuracy of this test.

[0026] Example 2: Refer to Figures 1-11, An auxiliary device for detecting the bearing force of a car door hinge. On the basis of Embodiment 1, a circular installation groove 22 is opened at the top of the base 1 corresponding to the turntable 5. The outer diameter of the turntable 5 is smaller than the inner diameter of the installation groove 22, that is, the outer wall of the turntable 5 does not contact the inner wall of the installation groove 22. Two limiting grooves 23 are opened at the bottom of the turntable 5. At the position corresponding to the limiting grooves 23 at the bottom of the installation groove 22, a cylinder 25 extending vertically upward is installed. The top end of the cylinder 25 is connected with a limiting block 26. In the initial state, the cylinder 25 is made to extend upward with the limiting block 26 into the limiting groove 23, so as to limit and place the horizontal and vertical positions of the turntable 5 through the two cylinders 25. At this time, the positions of the linear electric guide rail 17 and the clamping plate 20 are both corresponding to and fixed with the position of the placed male hinge; during the test, the cylinder 25 contracts downward to separate the limiting block 26 from the limiting groove 23. At this time, the two clamping plates 20 are clamped and fixed with the male hinge, so that the clamping plate 20 and the turntable 5 can be maintained fixed, so as to bear the weight and avoid the influence of the external friction of the turntable 5 on the test, thereby further improving the accuracy of the test.

[0027] In the present invention, a magnetic attraction strip 24 is installed on the periphery of the bottom of the turntable 5. At the position corresponding to the magnetic attraction strip 24 at the bottom of the installation groove 22, a plurality of electromagnetic blocks 27 are installed. During the test, the electromagnetic blocks 27 are energized to magnetically attract with the magnetic attraction strip 24, so as to realize the controllability of the weight-bearing adjustment of the positions of the turntable 5 and the male hinge through the energization adjustment of the electromagnetic blocks 27.

[0028] In the present invention, the magnetic attraction strip 24 is arranged in a ring structure, and a plurality of electromagnetic blocks 27 are distributed in a circular array in the installation groove 22. Thus, through the magnetic attraction between the ring-shaped magnetic attraction strip 24 and the electromagnetic blocks 27 distributed in a circular array, during the deflection of the turntable 5 along with the male hinge, the horizontal stability of the turntable 5 is maintained by using the magnetic attraction effect of the circular distribution, thereby improving the effectiveness and accuracy of the rotation test.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An auxiliary device for detecting the bearing force of a car door hinge, comprising a base (1), an installation frame (2) is fixedly arranged outside the base (1), and the installation frame (2) is used for fixing the female hinge of the hinge body (4). It is characterized in that, A turntable (5) is rotatably arranged on the base (1), a fixing component (6) is installed on the turntable (5), the fixing component (6) is used for fixing with the male hinge of the hinge body (4), and a driving component (7) is also arranged on the mounting frame (2); A horizontally extending push rod (11) is arranged in the fixing component (6), the driving component (7) is provided with two arc-shaped electric guide rails (8) fixed to the mounting frame (2), a connecting frame (9) is connected below the arc-shaped electric guide rail (8), the two connecting frames (9) are located on both sides of the push rod (11), and a striking rod (10) is installed at the position of the connecting frame (9) facing the push rod (11).

2. The auxiliary device for detecting the bearing force of a car door hinge according to claim 1, characterized in that, One end of the striking rod (10) close to the connecting frame (9) extends horizontally, and a pressure sensor is connected between the striking rod (10) and the connecting frame (9). The position of the striking rod (10) far from the connecting frame (9) extends vertically. The turntable (5), the arc-shaped electric guide rail (8) and the hinge body (4) are set to have the same rotation axis.

3. The auxiliary device for detecting the bearing force of a car door hinge according to claim 2, characterized in that, A vertically downward extending mounting plate (3) is installed in the mounting frame (2). Two clamping blocks (12) are fixed at the position of the mounting plate (3) facing the hinge body (4). The clamping blocks (12) are adapted to the preset holes of the female hinge of the hinge body (4). An electric push rod (13) is horizontally installed at the position adjacent to the clamping blocks (12) in the mounting plate (3). A clamping sleeve (16) is connected to the end of the electric push rod (13). A clamping groove is opened at one end of the clamping sleeve (16) facing the clamping block (12).

4. The auxiliary device for detecting the bearing force of a car door hinge according to claim 3, characterized in that, The electric push rod (13) is connected with a current monitoring module one. The working current of the electric push rod (13) is monitored through the current monitoring module one. If the working current of the electric push rod (13) is abnormal, it indicates that loosening has occurred between the female hinge and the mounting plate (3).

5. The auxiliary device for detecting the bearing force of a car door hinge according to claim 2, wherein, A linear electric guide rail (17) is installed on the turntable (5), a vertically upward extending fixing frame (18) is connected to the linear electric guide rail (17), the push rod (11) is installed at the top position of the fixing frame (18) far from the hinge body (4), and two horizontally placed hydraulic push rods (19) are installed on the fixing frame (18) in the direction facing the hinge body (4). The two hydraulic push rods (19) extend and retract towards both sides of the fixing frame (18) respectively. A clamping plate (20) is connected to the end of the hydraulic push rod (19).

6. The auxiliary device for detecting the bearing force of a car door hinge according to claim 5, characterized in that, A positioning block (21) is fixed at the position of the clamping plate (20) facing the male hinge of the hinge body (4). The positioning block (21) corresponds to the position of the preset hole on the male hinge. The distance between the two clamping plates (20) is extended at the position corresponding to the hydraulic push rod (19).

7. An auxiliary device for detecting the bearing force of a car door hinge according to claim 6, characterized in that, The hydraulic push rod (19) is connected with a current monitoring module two. During the test, the current monitoring module two is used to monitor the working current of the hydraulic push rod (19) in real time. If the monitored current value of the current monitoring module two decreases abnormally, it indicates that loosening has occurred between the clamping plate (20) and the male hinge.

8. An auxiliary device for detecting the bearing force of a car door hinge according to any one of claims 2 to 7, characterized in that, At the position corresponding to the turntable (5) on the top of the base (1), an installation groove (22) with a circular cross-section is provided. The outer diameter of the turntable (5) is smaller than the inner diameter of the installation groove (22). Two limiting grooves (23) are provided at the bottom of the turntable (5). At the position corresponding to the limiting groove (23) at the bottom of the installation groove (22), a cylinder (25) extending vertically upward is installed. The top end of the cylinder (25) is connected with a limiting block (26).

9. An auxiliary device for detecting the bearing force of a car door hinge according to claim 8, characterized in that, A magnetic attraction strip (24) is installed on the periphery of the bottom of the turntable (5). A plurality of electromagnetic blocks (27) are installed at the position corresponding to the magnetic attraction strip (24) at the bottom of the installation groove (22).

10. An auxiliary device for detecting the bearing force of a car door hinge according to claim 9, characterized in that, The magnetic attraction strip (24) is arranged in a ring structure, and a plurality of electromagnetic blocks (27) are distributed in a circular array in the installation groove (22).

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