A same-position switching device for a door hinge positioning mechanism

Abstract

The present invention relates to a same-position switching device for a door hinge positioning mechanism, which includes a frame. The frame is provided with an H-type vehicle window frame Y1 / Z1 axial positioning part, a solenoid valve island assembly, a C-type vehicle window frame Y2 / Z2 axial positioning part, a vehicle window frame Z3 common positioning part, and a same-position switching and positioning assembly for the door inner panel hinge reinforcement plate. An H-type vehicle window frame Y1 / Z1 axial positioning part a and a C-type vehicle window frame Y2 / Z2 axial positioning part b are provided between the solenoid valve island assembly and the vehicle window frame Z3 common positioning part. The present invention not only ensures that the door inner panel hinge reinforcement plates of the two vehicle models can be individually positioned and adjusted, but also realizes the mixed-line production of the common fixtures for the doors of the two vehicle models.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle door hinges, and particularly to a same-position switching device for a vehicle door hinge positioning mechanism. Background Art

[0002] During the welding and assembly process, there are two ways to adjust the dimensional difference of the gap between the split vehicle doors: one is to adjust the relative position between the split vehicle door frame and the inside of the door; the second is to adjust the attitude of the hinge reinforcement plate of the inner door panel. And adjusting the dimensional attitude of the hinge reinforcement plate of the inner door panel has the greatest impact on the gap dimensional difference of the vehicle door. Therefore, for the convenience of controlling the dimensional difference of the vehicle door gap of the whole vehicle, it is required that the welding fixture of the hinge reinforcement plate of the inner door panel usually adopts a vehicle model-specific fixture during the design stage of the welding opening part sub-assembly process, so as to ensure that the dimensional adjustment of the hinge reinforcement plate fixtures of multiple vehicle models does not affect each other, thereby reducing the difficulty of controlling the dimensional difference of the vehicle door gap of the whole vehicle. However, with the increase in the number of vehicle models and the increasing requirement for production flexibility, the welding special fixture for the hinge reinforcement plate of the inner door panel not only has huge manufacturing costs and large floor space, but also causes great difficulties in the planning and layout of the mixed-flow production line for multiple vehicle models. Therefore, in order to simultaneously meet the function of individually adjustable dimensions of the hinge reinforcement plate fixtures of each vehicle model door and the mixed-flow design of the common fixture for multiple vehicle models, a same-position switching device for a vehicle door hinge positioning mechanism is provided. Summary of the Invention

[0003] In view of the above problems, the present invention provides a same-position switching device for a vehicle door hinge positioning mechanism, which not only ensures the individually adjustable positioning of the hinge reinforcement plates of the inner door panels of two vehicle models, but also realizes the mixed-line production of the common fixture for the doors of two vehicle models.

[0004] In order to achieve the above object and other related objects, the technical solution provided by the present invention is as follows:

[0005] A same-position switching device for a vehicle door hinge positioning mechanism includes a frame, on which there are provided a Y1 / Z1 axial positioning part for the vehicle door frame of H model, a solenoid valve island assembly, a Y2 / Z2 axial positioning part for the vehicle door frame of C model, a Z3 common positioning part for the vehicle door frame, and a same-position switching and positioning assembly for the hinge reinforcement plate of the inner door panel.

[0006] Between the solenoid valve island assembly and the Z3 common positioning part for the vehicle door frame, there are provided an a of the Y1 / Z1 axial positioning part for the vehicle door frame of H model and a b of the Y2 / Z2 axial positioning part for the vehicle door frame of C model.

[0007] Further, the a of the Y1 / Z1 axial positioning part for the vehicle door frame of H model is provided with a t of the Y1 / Z1 axial in-place detection element for the vehicle door of H model, the b of the Y2 / Z2 axial positioning part for the vehicle door frame of C model is provided with an m of the Y2 / Z2 axial in-place detection element for the vehicle door frame of C model, and the Z3 common positioning part for the vehicle door frame is provided with a common in-place detection element for the Z3 vehicle door frame.

[0008] Furthermore, the in - door - panel hinge reinforcement same - position switching and positioning assembly includes a fixed base installed on the in - door - panel welding fixture, an upper - door - hinge reinforcement same - position switching mechanism, and a lower - door - hinge reinforcement same - position switching mechanism.

[0009] Furthermore, an X - direction translation guide rail for the hinge reinforcement plate is provided at the top of the fixed base. An X - direction translation guide rail base is slidably connected to the X - direction translation guide rail for the hinge reinforcement plate. One end of the X - direction translation guide rail base is provided with an X - direction limit block for the hinge reinforcement plate, and the other end is provided with an X - direction pushing cylinder.

[0010] Furthermore, a rotary cylinder connecting plate is provided at the top of the X - direction translation guide rail base. A 180° rotary cylinder is provided on the rotary cylinder connecting plate. A set of Y / Z - direction positioning pins for the H - model hinge reinforcement plate are symmetrically arranged above the 180° rotary cylinder, and a set of Y / Z - direction positioning pins for the C - model hinge reinforcement plate are symmetrically arranged below it. A Y / Z - direction limit pin for the rotary mechanism is provided between the set of Y / Z - direction positioning pins for the C - model hinge reinforcement plate.

[0011] Furthermore, an X - direction translation in - place detection element d is provided on one side of the rotary cylinder connecting plate close to the X - direction translation guide rail base.

[0012] The present invention has the following positive effects:

[0013] 1) Through the positioning detection elements and in - place detection elements for the two vehicle models, the present invention can accurately identify the two vehicle models, facilitating the subsequent processes and improving the production efficiency.

[0014] 2) Through the same - position rotary cylinder, the present invention can achieve a 180° reciprocating rotation to realize the positioning switch between the two vehicle models. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the in - door - panel welding fixture of the present invention;

[0016] Figure 2 It is a schematic diagram of the in - door - panel hinge reinforcement same - position switching and positioning assembly of the present invention;

[0017] Figure 3 It is a detailed schematic diagram of the in - door - panel hinge reinforcement same - position switching and positioning assembly of the present invention.

[0018] Explanation of the reference numerals in the figure: 1. Axial positioning part a of the door window frame Y1 / Z1 of the H model; 11. Axial in-position detection element t of the door window frame Y1 / Z1 of the H model; 2. Solenoid valve island assembly; 3. Axial positioning part b of the door window frame Y2 / Z2 of the C model; 31. Axial in-position detection element m of the door window frame Y2 / Z2 of the C model; 4. Common positioning part of the door window frame Z3; 41. Common in-position detection element of the door window frame Z3; 5. Positioning assembly for the same position switching of the hinge reinforcement plate of the inner door panel; 6. Same position switching mechanism of the upper hinge reinforcement plate of the door; 7. Same position switching mechanism of the lower hinge reinforcement plate of the door; 8. Fixed base; 9. X-direction translation guide rail of the hinge reinforcement plate; 10. X-axis translation guide rail base; 11. X-axis push cylinder; 12. Rotary cylinder connecting plate; 13. Rotary cylinder rotation into position detection element c; 14. 180° rotary cylinder; 15. H model hinge reinforcement plate Y / Z direction positioning pin; 16. Rotary mechanism Y / Z direction limit pin; 17. C model hinge reinforcement plate Y / Z direction positioning pin; 18. Hinge reinforcement plate X direction limit block; 19. X-axis translation into position detection element d; 20. Frame. DETAILED DESCRIPTION

[0019] The following will further describe in detail the uplink noise floor optimization method, device and system content of the multi-service digital distribution system of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the embodiments described below are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example 1: Figure 1 As shown in Figure 2, a door hinge positioning mechanism co-location switching device comprises a frame 20, on which are provided an H-type door window frame Y1 / Z1 axial positioning portion a1, a solenoid valve island assembly 2, a C-type door window frame Y2 / Z2 axial positioning portion b3, a door window frame Z3 common positioning portion 4 and a door inner panel hinge reinforcement plate co-location switching positioning assembly 5,

[0021] An axial positioning portion a1 for the H-type door window frame Y1 / Z1 and an axial positioning portion b3 for the C-type door window frame Y2 / Z2 are provided between the solenoid valve island assembly 2 and the common positioning portion 4 for the door window frame Z3 .

[0022] Furthermore, the H-type door window frame Y1 / Z1 axial positioning portion a1 is provided with an H-type door window Y1 / Z1 axial position detection element t11, the C-type door window frame Y2 / Z2 axial positioning portion b3 is provided with a C-type door window frame Y2 / Z2 axial position detection element m31, and the door window frame Z3 common positioning portion 4 is provided with a door window frame Z3 common position detection element 41.

[0023] Further, the same-position switching and positioning assembly 5 of the door inner panel hinge reinforcement plate includes a fixed base 8 installed on the door inner panel welding fixture, a same-position switching mechanism 6 for the upper door hinge reinforcement plate, and a same-position switching mechanism 7 for the lower door hinge reinforcement plate. A hinge reinforcement plate X-direction translation guide rail 9 is provided at the top of the fixed base 8. An X-direction translation guide rail base 10 is slidably connected to the hinge reinforcement plate X-direction translation guide rail 9. One end of the X-direction translation guide rail base 10 is provided with a hinge reinforcement plate X-direction limit block 18, and the other end is provided with an X-direction pushing cylinder 11.

[0024] Further, a rotary cylinder connecting plate 12 is provided at the top of the X-direction translation guide rail base 10. A 180° rotary cylinder 14 is provided on the rotary cylinder connecting plate 12. A set of H-model hinge reinforcement plate Y / Z-direction positioning pins 15 are symmetrically arranged above the 180° rotary cylinder 14, and a set of C-model hinge reinforcement plate Y / Z-direction positioning pins 17 are symmetrically arranged below. A rotary mechanism Y / Z-direction limit pin 16 is provided between a set of the C-model hinge reinforcement plate Y / Z-direction positioning pins 17.

[0025] Further, an X-direction translation in-place detection element d19 is provided on one side of the rotary cylinder connecting plate 12 close to the X-direction translation guide rail base 10.

[0026] Specifically, the door inner panel welding fixture is used to position parts such as the car window frame assembly, the door inner panel assembly, and the inner panel hinge reinforcement plate. The door inner panel welding fixture can realize the common positioning and welding of the door inner panel assemblies and reinforcement plates of two vehicle models. Among them, the car window frame assembly is a vehicle model-specific part, and the rest are vehicle model-general parts. However, due to the different assembly requirements of the four doors and two covers of the two vehicle models, the fixture positioning mechanism for the common part of the door inner panel hinge reinforcement plate needs to realize the separate positioning and adjustable function for the two vehicle models. This fixture focuses on explaining the positioning and adjustable structure of the car window frame assembly and the inner panel hinge reinforcement plate of the two vehicle models. The positioning structure of the car window frame assembly includes the H-model car window frame Y1 / Z1-direction positioning and in-place detection element a1, the car window frame Y2 / Z2-direction positioning and in-place detection element b3 of the vehicle model, and the car window frame Z3 common positioning and in-place detection 4. The same-position switching and positioning structure 5 of the inner panel hinge reinforcement plate is used to position the door inner panel reinforcement plate parts of the two vehicle models and realizes the separate positioning and adjustable function of the door inner panel hinge reinforcement plates of the two vehicle models. One side of the solenoid valve island assembly 2 is connected to the PLC controller, and the other side is electrically connected to each moving part of the fixture, mainly used to receive PLC instructions and electrically control each moving part of the fixture to run according to the instruction sequence.

[0027] Such as Figure 3As shown in the figure, the same-position switching and positioning assembly 5 of the hinge reinforcement plate for the inner door panel is installed on the bottom plate of the inner door panel welding fixture, and is used to position the upper / lower hinge reinforcement plates on the inner door panel. The upper / lower hinge reinforcement plate same-position switching mechanisms 6 and 7 have similar structures. Taking the same-position switching structure of the lower hinge reinforcement plate as an example for illustration: The hinge reinforcement plate switching mechanism is assembled on the welding fixture bottom plate through the fixed base 8. A translation mechanism responsible for the X-direction translation of the same-position switching mechanism is installed on the fixed base 8. Among them, the X-direction pushing cylinder 11 is connected to the X-direction translation guide rail base 10 through a hinged structure, and the X-direction translation base 10 is pushed to move in the X direction through the X-direction translation guide rail 9. An X-direction translation limit block 18 is also assembled on the fixed base 8 to ensure the accuracy of the X-direction translation in place. The 180° rotary cylinder 14 for realizing the same-position switching of the hinge reinforcement plate is assembled on the X-direction translation guide rail base 10 through the connecting plate 12. The Y / Z-direction positioning pins 15 and 16 of the hinge reinforcement plates for models A and B are respectively installed on the rotary cylinder 14. With the center point of the rotary cylinder as the axis, the positioning structures of the two models are symmetrically assembled. The rotary cylinder 14 can complete a 180° reciprocating rotation. As Figure 2 shown, the positioning position of model A is the working position. When model switching is required, the rotary cylinder rotates 180°, and the positioning mechanism of model B reaches the working position, thus realizing the same-position positioning switching mechanism. Moreover, the Y / Z-direction positioning pins 1 of the hinge reinforcement plates for models A and B can be respectively adjusted for positioning accuracy according to the assembly accuracy requirements of each model. The in-place detection of the rotary cylinder is realized through the in-place detection element 13 assembled on the side of the cylinder. In order to further ensure the positioning accuracy of the A / B model positioning pins on the rotary cylinder and the Y / Z-direction bearing capacity of the positioning pins, the Y / Z-direction limit pins 16 of the rotary mechanism are assembled on the fixed base 8, and the matching limit holes are assembled on the corresponding rotary cylinder connecting plate 12.

[0028] Embodiment 2: The present invention also provides a same-position switching system for a door hinge positioning mechanism, including:

[0029] A production planning module, which, according to the vehicle sales demand, combines the constraints of the production beats, operation systems, material resources, and production line conditions of each workshop of the vehicle, establishes a data model, and derives the optimal production sorting method and production order information table;

[0030] A data processing module, which is connected to the production planning module through a communication interface, is used to receive the production order information table, and perform identification processing on the vehicle models and configuration information related to the mixed-flow production in the order information, and derive an automatically matched welding process vehicle model information table;

[0031] A control terminal module, which is communicatively connected to the data processing module, and sends the welding process vehicle model information table to the production line electrical control system through the control terminal module;

[0032] An HMI human-machine interface, which is used to display various information.

[0033] Preferably, the production order information includes: order number, VIN number, instantiated vehicle model information, where the instantiated vehicle model information includes vehicle model series, body type, configuration level, power unit, drive form, model year, paint color, interior color, and optional information.

[0034] Specifically, the production order information table is used as the basis for the weekly production scheduling of each workshop in the vehicle factory. Since the production order information is distributed to each workshop in the vehicle factory, the production order information contains various information related to the whole vehicle, such as order number, VIN number, instantiated vehicle model information, etc., where the instantiated vehicle model coding rule ( Figure 3 ) includes vehicle model series, body type, configuration level, power unit, drive form, model year, paint color, interior color, and optional information, etc. The production planning system is connected to the data processor in the welding workshop through a communication interface, and the production planning system sends the generated production order information table to the production order data processor in the welding workshop.

[0035]

[0036] Preferably, the production line electrical control system includes a PLC control device, a solenoid valve, a same-position switching device for the door hinge positioning mechanism, and multiple groups of signal sensors.

[0037] Preferably, the PLC control device is connected to multiple solenoid valves and vehicle model detection signal sensors of the same-position switching device for the door hinge positioning mechanism.

[0038] To achieve the above and other related purposes, as Figure 3 shown, the present invention also provides a same-position switching control method for the door hinge point mechanism, including the following steps:

[0039] S1: The production planning module performs data modeling according to the vehicle sales demand, combined with the constraints of the vehicle model production rhythm, operation system, material resources, and production line conditions of each workshop in the vehicle factory, and the system modeling calculation derives the optimal production sorting method and production order information table;

[0040] S2: The data processing module receives the production order information table, identifies and processes the vehicle models and configuration information related to the welding mixed-flow production in the order information, and converts it into a welding process vehicle model information table for automatic matching;

[0041] S3: The control terminal module is communicatively connected to the data processing module, and sends the welding process vehicle model information table to the production line electrical control system through the control terminal module;

[0042] S4: Based on the process vehicle model information table obtained from the electrical control system, program-match the multi-vehicle model differential electrical detection signals in the door inner panel welding fixture equipment with the vehicle model information in the welding process vehicle model information table, and output to the PLC control equipment;

[0043] S5: The PLC control equipment receives the batch welding process vehicle model information list sent down, processes it through the programmed software data into the detection signal group corresponding to the door hinge positioning mechanism in-position switching device, and performs manual assembly through signal display;

[0044] S6: After the manual assembly is completed, the operator at the loading station presses the reset button of the electrical control system, feeds back the operation completion signal to the PLC control equipment, and the PLC control equipment collects the signals of the door inner panel welding fixture equipment for operation vehicle model matching and identification.

[0045] Preferably, in step S5, the detection signal group includes the H vehicle model car window frame Y1 / Z1 direction positioning and in-position detection element a, the C vehicle model car window frame Y2 / Z2 direction positioning and in-position detection element b, the car window frame Z3 common positioning and in-position detection component and the in-position detection component and the door inner panel hinge reinforcement plate in-position switching positioning component.

[0046] Specifically, in step S2, aiming at the information required for the mixed-flow production matching in the welding workshop, the production information is classified and processed. First, the planned order number and VIN number represent the order production sequence and the whole vehicle VIN information, which can be directly converted into the production serial number and VIN number in the process vehicle model information in sequence. Secondly, the instantiated vehicle model code is a total of 18 digits. According to the instantiated coding rule ( Figure 3 ), extract the effective information codes matching the welding mixed-flow production, such as vehicle model code, configuration level, power configuration information. For example, 1H4HG5 represents the H vehicle model E1 level configuration equipped with an A15 type engine. This process information can represent the welding assembly information of multiple vehicle model bodies. After data reorganization and processing by the data processor, a welding process vehicle model information table with the same order as the production order information and information reorganization is generated as follows.

[0047]

[0048] Specifically, in step S4, first, software personnel need to program-match the multi-vehicle model differential electrical detection signals in the welding common fixture equipment with the vehicle model information in the welding process vehicle model information table, as shown in Table 3 below. Take the door inner panel welding fixture ( Figure 1 ) as an example. Since this fixture is applicable to the common welding of the door inner panels of three vehicle models, the main different positions of the three vehicle models are Figure 1 the car window frame Y / Z direction positioning 1, 3, 4 in Figure 2The same-position switching and positioning mechanism for two vehicle models. Position detection elements are designed at the differences in the positioning of three vehicle models for detecting the arrival of different parts. When the process vehicle model information is 1H4HG5, the corresponding vehicle model is the H model with E1-level configuration equipped with the A15 engine. The vehicle door frame Y1 / Z1 detection element a of the corresponding H model detects the arrival and shows the arrival signal a (I). The corresponding Y2 / Z2 detection element b of the C model does not detect the arrival and shows b (O). At the same time, the X-direction translation arrival detection element d of the same-position switching mechanism detects the arrival and the signal shows d (I). The rotary cylinder positioning structure on the same-position switching mechanism selects the arrival detection signal and detects it as the H model, and the signal shows H (I). The PLC electrical programming personnel match the mass production process vehicle model information with the fixture equipment detection signals one by one and write them into the program, which is used as the basis for the subsequent PLC to guide the fixture actions.

[0049]

[0050] Specifically, the door welding island starts the electrical control operation program. The PLC receives the mass welding process vehicle model information list sent by the data processor, processes it into the corresponding fixture equipment detection signal group through the programmed software data, and sends the corresponding vehicle model instruction to the solenoid valve island assembly 2 of the door inner panel welding fixture at the 3101 station of the regional process according to the production scheduling order ( Figure 1 ). The fixture equipment movement is controlled by the solenoid valve. The solenoid valve pushes the vehicle model positioning structure on the rotary cylinder 14 ( Figure 2 ) that matches the instruction to rotate to the working position. After the rotary cylinder rotates in place, the cylinder detection element c13 feeds back the detected vehicle model and arrival signal to the PLC. The PLC matches through the parameter table according to the vehicle model differences. When the vehicle model matching is correct, the PLC issues an instruction through the solenoid valve to drive the X-direction cylinder 11. After the cylinder is in place, the X-direction translation arrival detection element d feeds back the arrival detection signal to the PLC. At this point, the door inner panel welding fixture has the conditions for assembling H / C model parts, the operation signal lamp at the part loading port of the station lights up, and the operation station personnel perform manual part loading according to the operation process requirements.

[0051] Specifically, in step S5, the PLC collects the signals of the vehicle door frame Y1 / Z1 detection element a, the door frame Y2 / Z2 detection element b, the rotary cylinder vehicle model detection element c of the inner panel hinge reinforcement plate, and the X-direction arrival detection element d. The fixture equipment signal information and the vehicle model process information data are matched through the PLC system. After the vehicle model matching is correct, the welding island automatically enters the subsequent welding operation. When the vehicle model matching is incorrect, the PLC issues an alarm message through the HMI human-machine interface, the PLC system starts the manual mode, and the on-site equipment personnel conduct fault troubleshooting. After the fault is eliminated, the PLC starts the automatic mode to perform again.

[0052] The electrical control implementation of the in - door panel welding fixture same - position switching system is set to a dual - mode operation mechanism, namely the positioning mode and the adjustment mode. The positioning mode is the automatic operation mode of the control system, that is, the automatic start - up mode without faults. When the PLC receives the vehicle model process information instruction, the PLC smoothly transmits the converted fixture device operation instruction to the corresponding fixture device. When the fixture device successfully completes the device operation according to the instruction, the electrical operation program at this time is the automatic mode program. The adjustment mode is the manual adjustment operation mode, which is mainly used for troubleshooting system alarms during the operation of the positioning mode. When the PLC transmits the converted fixture device operation quality to the corresponding fixture device, and when the corresponding solenoid valve feedback signal does not match the PLC instruction signal after the fixture device operates according to the instruction, the PLC system issues an equipment failure alarm message through the HMI human - machine interface. Through the analysis of the failure alarm message by on - site equipment personnel, in order to eliminate the fault, the manual operation mode is started for troubleshooting. When the system fault is eliminated, the PLC starts the automatic operation mode to promote the system to continue running. The dual - mode design of the electrical control system reduces the risk of modifying the program sequence during the troubleshooting of program faults and reduces the downtime for system troubleshooting.

[0053] In summary, the present invention designs a control method for the same - position switching system of the in - door panel hinge reinforcement plate positioning mechanism. This system realizes the sequence matching of two vehicle models through the recognition of different vehicle model window frame assemblies, and the intelligent same - position matching and switching of the in - door panel hinge reinforcement plate positioning. It not only ensures the individual positioning and adjustability of the in - door panel hinge reinforcement plates of the two vehicle models, but also realizes the mixed - line production of the two vehicle models using common fixtures.

[0054] The above - described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A same-position switching device for a door hinge positioning mechanism, comprising a frame (20). Characterized in that: The frame (20) is provided with an H-model vehicle window frame Y1 / Z1 axial positioning portion a (1), a solenoid valve island assembly (2), a C-model vehicle window frame Y2 / Z2 axial positioning portion b (3), a vehicle window frame Z3 common positioning portion (4), and a same-position switching positioning assembly (5) for the hinge reinforcement plate of the door inner panel. Between the solenoid valve island assembly (2) and the vehicle window frame Z3 common positioning portion (4), there are provided an H-model vehicle window frame Y1 / Z1 axial positioning portion a (1) and a C-model vehicle window frame Y2 / Z2 axial positioning portion b (3); the H-model vehicle window frame Y1 / Z1 axial positioning portion a (1) is provided with an H-model vehicle window Y1 / Z1 axial in-place detection element t, the C-model vehicle window frame Y2 / Z2 axial positioning portion b (3) is provided with a C-model vehicle window frame Y2 / Z2 axial in-place detection element m (31), and the vehicle window frame Z3 common positioning portion (4) is provided with a vehicle window frame Z3 common in-place detection element (41); the same-position switching positioning assembly (5) for the hinge reinforcement plate of the door inner panel includes a fixed base (8) installed on the door inner panel welding fixture, a same-position switching mechanism (6) for the upper hinge reinforcement plate of the door, and a same-position switching mechanism (7) for the lower hinge reinforcement plate of the door; the top of the fixed base (8) is provided with a hinge reinforcement plate X-direction translation guide rail (9), and an X-direction translation guide rail base (10) is slidably connected to the hinge reinforcement plate X-direction translation guide rail (9). One end of the X-direction translation guide rail base (10) is provided with a hinge reinforcement plate X-direction limit block (18), and the other end is provided with an X-direction pushing cylinder. The top of the X-direction translation guide rail base (10) is provided with a rotary cylinder connecting plate (12), and a 180° rotary cylinder (14) is provided on the rotary cylinder connecting plate (12). Above the 180° rotary cylinder (14), a set of H-model hinge reinforcement plate Y / Z-direction positioning pins (15) are symmetrically arranged, and below it, a set of C-model hinge reinforcement plate Y / Z-direction positioning pins (17) are symmetrically arranged. A rotary mechanism Y / Z-direction limit pin (16) is provided between a set of the C-model hinge reinforcement plate Y / Z-direction positioning pins (17).

2. The same-position switching device for a door hinge positioning mechanism according to claim 1, Characterized in that: An X-direction translation in-place detection element d (19) is provided on one side of the rotary cylinder connecting plate (12) close to the X-direction translation guide rail base (10).

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