An automatic door hinge installation device

Abstract

The present application relates to a kind of automatic installation device of door hinge, including multi-point positioning manipulator, and: positioning end, with the multi-point positioning manipulator relative fixedly arranged, the multi-point positioning manipulator is positioned on door by positioning end;Twist part, with the multi-point positioning manipulator relative movably arranged, and by pneumatic effect on hinge fastening screw;Wherein, the multi-point positioning manipulator is in the process of forming vacuum and releasing hollow, it forms connection and release connection with door respectively, external airflow reaches vacuum from the twist part place.This application can quickly complete the positioning of handling equipment on the door by the cooperation of positioning end, and cooperate with the air path inside handling equipment, so that door can be placed on the vehicle body when driving twist part to work synchronously, so as to automatically realize the installation of hinge, compared with prior art, can fully improve the installation efficiency of hinge.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle door assembly equipment, in particular to an automatic vehicle door hinge installation device. BACKGROUND

[0002] Figure 8 A structural diagram of a vehicle door hinge in the prior art is composed of a first hinge and a second hinge, which are respectively fixed on a vehicle body and a vehicle door in advance, when the vehicle door is assembled, a hinge shaft on the second hinge is aligned and inserted into the first hinge, the first hinge has a fastening screw, when the hinge shaft on the second hinge is completely inserted into the first hinge, the fastening screw is tightened, the hinge shaft is limited on the first hinge, and thus the installation of the vehicle door hinge is completed.

[0003] In the prior art, the installation of the vehicle door hinge mainly relies on manual fastening of the fastening screw by using a hand tool, and the disadvantage of this method is that the efficiency is relatively low, especially in large-scale production and assembly line operation, a large number of operators are required to participate, which limits the production capacity and prolongs the production cycle. SUMMARY

[0004] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification of the present application to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the following technical problems in the prior art: in the prior art, the installation of the vehicle door hinge mainly relies on manual operation, which results in low efficiency. To solve this technical problem, the present application provides the following technical solutions:

[0006] The present application provides an automatic vehicle door hinge installation device, comprising a multi-point positioning manipulator, and:

[0007] A positioning end is arranged in relative fixation with the multi-point positioning manipulator, and the multi-point positioning manipulator is positioned on the vehicle door through the positioning end;

[0008] A screwing part is arranged in relative movement with the multi-point positioning manipulator and acts on the hinge fastening screw through air pressure;

[0009] Wherein, the multi-point positioning manipulator is in a vacuum forming and vacuum releasing process, and forms connection and disconnection with the vehicle door respectively, and the external airflow reaches the vacuum place from the screwing part.

[0010] According to one embodiment of the present application, the multi-point positioning robot further comprises a connecting arm, the holding part keeps the door moving during spatial movement, and the positioning end is fixedly arranged on the connecting arm.

[0011] According to one embodiment of the present application, the rotating part is movably arranged on the connecting arm, and the positioning end is in position matching with the hinge screw.

[0012] According to one embodiment of the present application, the connecting arm is provided with a pneumatic motor, the rotating part is configured to be in transmission matching with the pneumatic motor, the holding part is provided with a gas storage area for connecting or disconnecting the door, the gas storage area is connected with a first air inlet branch, and the pneumatic motor is connected in series with the first air inlet branch.

[0013] According to one embodiment of the present application, the pneumatic motor is movably arranged on the connecting arm, and a reset part is connected between the pneumatic motor and the connecting arm, the rotating part is connected with an output end of the pneumatic motor, the first air inlet branch comprises a guide cavity arranged on the connecting arm, a piston rod is arranged in the guide cavity, the piston rod is connected with the pneumatic motor, the guide cavity is in communication with the gas storage area through a pipeline, and the pneumatic motor is connected in series with the pipeline.

[0014] According to one embodiment of the present application, the pneumatic motor is elastically connected with the piston rod.

[0015] According to one embodiment of the present application, the pneumatic motor is connected with the piston rod through a spring rod.

[0016] According to one embodiment of the present application, the rotating part is coupled with a transmission rod, and the transmission rod is connected with an output end of the pneumatic motor.

[0017] According to one embodiment of the present application, the rotating part is coupled with a transmission rod, and the transmission rod is connected with an output end of the pneumatic motor.

[0018] According to one embodiment of the present application, the rotating part is coupled with a transmission rod, and the transmission rod is connected with an output end of the pneumatic motor.

[0019] The automatic door hinge installation device provided by the present application has the following beneficial effects:

[0020] The present application can quickly complete the positioning of the carrying equipment on the door through the cooperation of the positioning end, and cooperate with the air path in the carrying equipment, so that the door can be placed on the vehicle body, and the screwing part can be driven to work at the same time, thereby automatically realizing the installation of the hinge. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the multi-point positioning manipulator.

[0023] Figure 2 It is a separate display diagram of the manipulator part shown in Figure 1 .

[0024] Figure 3 It is a side view of Figure 2 .

[0025] Figure 4 It is a partial solid cutaway schematic diagram of Figure 2 .

[0026] Figure 5 It is another partial solid cutaway schematic diagram of Figure 2 .

[0027] Figure 6 It is a split schematic diagram between the structures shown in Figure 2 .

[0028] Figure 7 It is an application schematic diagram of the multi-point positioning manipulator.

[0029] Figure 8 It is a structure diagram of the door hinge in the prior art.

[0030] Figure 9 It is a perspective view of one of the embodiments of the present application.

[0031] Figure 10 It is a schematic diagram of the structure shown in Figure 9 in cooperation with the multi-point positioning manipulator for installation and use.

[0032] Figure 11 It is another perspective view of Figure 10 .

[0033] Figure 12Figure 1 is a perspective view of the present application. Figure 11 Figure 2 is a partial enlarged view of the present application.

[0034] Figure 13 Figure 3 is a cross-sectional view of the present application. Figure 9 Figure 4 is an internal cutaway view of the structure shown in Figure 3.

[0035] Figure 14 Figure 5 is another internal cutaway view of the structure shown in Figure 3. Figure 9 Figure 6 is a partial cutaway view of the present application.

[0036] Figure 15 Figure 7 is a split schematic view of the present application.

[0037] Figure 16 Figure 8 is a schematic view of the air path between the structures in the present application.

[0038] Reference signs:

[0039] 1, holding portion; 101, housing; 2, connecting end; 201, suction cup; 3, gas storage area; 4, adjusting block; 5, support end; 6, extrusion portion; 7, force receiving plate; 701, force receiving surface; 8, slide; 9, spring member; 10, vehicle door conveying mechanism; 11, blocking rod; 12, positioning end; 13, twisting portion; 14, connecting arm; 15, pneumatic motor; 16, first gas inlet branch; 16a, guide cavity; 16b, pipeline; 17, reset portion; 18, piston rod; 19, spring rod; 20, transmission rod; 21, second gas inlet branch; 22, switching valve; 23, opening; 24, on-off valve; 25, light source; 26, light receiver. DETAILED DESCRIPTION

[0040] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0041] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0042] Secondly, the "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0043] Thirdly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the cross-sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0044] Before introducing the automatic installation device of the vehicle door hinge in the present application, the present application will first introduce a multi-point positioning manipulator; in particular:

[0045] A multi-point positioning manipulator, which can be used in cooperation with a vehicle door conveying mechanism 10, the manipulator comprises a holding part 1 and a connecting end 2;

[0046] The vehicle door conveying mechanism 10 is composed of multiple conveying belts, which is used for conveying the vehicle door placed thereon, and the manipulator is located at the end of the conveying path of the vehicle door conveying mechanism 10, so as to grasp the delivered vehicle door;

[0047] The connecting end 2 is used to connect the vehicle door, and the number thereof is multiple, and is movably arranged at multiple different positions of the holding part 1, the holding part 1 is used to connect the power-assisted mechanical arm in the workshop, and in the grasping process, through the spatial movement of the holding part 1, the multiple connecting ends 2 can contact different parts of the vehicle door, and through the movable arrangement, the position of the connecting end 2 on the holding part 1 can be adjusted, so as to finally ensure that each connecting end 2 can form contact with the vehicle door;

[0048] The holding part 1 is at least provided with a first state and a second state, and the multiple connecting ends 2 can be movable on the holding part 1 in the first state, so as to adjust the relative positions between the multiple connecting ends 2, and in this state, the connecting end 2 is disconnected with the vehicle door; when the multiple connecting ends 2 are in the second state, they are fixed on the holding part 1, so as to lock the relative positions between the multiple connecting ends 2, and the connecting end 2 is in the connected state with the vehicle door in this state;

[0049] The above, when the connecting end 2 is in a movable state between the holding part 1, the connecting end 2 has an elastic reset effect on the holding part 1, that is, in the first state, the plurality of connecting ends 2 are always in a relatively fixed position under the condition of no external force, in the process of realizing the door carrying, the holding part 1 is kept in the first state, the holding part 1 is moved to the end of the door conveying mechanism 10, and the holding part 1 is pressed, so that the plurality of connecting ends 2 yield to the elastic force, thereby enabling sufficient contact with the door, and then switching to the second state, at this time, the plurality of connecting ends 2 and the holding part 1 are in a relatively fixed state, and the connecting part is in contact with the door, and the door can be lifted by moving the holding part 1, thereby carrying the door, and when the door reaches the car body and needs to be lowered, the first state is switched to release the connection between the whole mechanical hand and the door;

[0050] Through the movable relationship between the connecting end 2 and the holding part 1, the different shapes of the door can be automatically adapted during the carrying process, and through the relationship between the first state and the second state, the door can be quickly grabbed and lowered, thereby maintaining a certain carrying efficiency.

[0051] Referring to Figures 1-7 , the connecting end 2 can adopt a suction cup 201, specifically, the holding part 1 is provided with a gas storage area 3, the gas storage area 3 is in communication with a plurality of suction cups 201, and the gas storage area 3 is kept in a normal pressure state and a negative pressure state in the first state and the second state respectively, so as to realize the suction state of the door, when the mechanical hand moves to the outside of the door during the carrying process, and is pressed, the plurality of suction cups 201 can contact the outer surface of the door, and through the switching between the first state and the second state, the door can be lifted and lowered.

[0052] Referring to Figures 2-6 , regarding the setting mode of the suction cup 201 on the holding part 1, specifically, the multi-point positioning mechanical hand further comprises an adjusting block 4, which is rotatably connected with the holding part 1, one side of the adjusting block 4 is a gas storage cavity, and the other side faces the outside, the adjusting block 4 keeps the gas storage cavity sealed, the suction cup 201 is connected with a supporting end 5, which is a hollow structure and is in communication with the suction cup 201, the other end of the supporting end 5 movably penetrates the adjusting block 4 and extends into the gas storage area 3, through the penetration, the supporting end 5 can slide on the adjusting block 4, so as to realize the moving away or approaching of the suction cup 201 relative to the holding part 1, thereby conforming to the shape of the outside of the door during the connection of the door, so as to keep the suction cup 201 in sufficient contact with the door, and through the rotating effect of the adjusting block 4, the suction cup 201 can also swing within a limited angle, thereby further increasing the adjustable range of the position of the suction cup 201 during the pressing of the holding part 1.

[0053] The linkage matching relationship is arranged between the gas storage area 3 and the supporting end 5, so that one end of the supporting end 5 can be kept in a movable state and a fixed state in the gas storage area 3 in the first state and the second state respectively, thereby, when the holding part 1 is in the first state, the supporting end 5 can be moved in the gas storage area 3 to adjust the position of the suction disc 201, and meanwhile, the suction disc 201 is kept in a state of being released from air suction, when the holding part 1 is in the second state, the supporting end 5 is fixed, the position of the suction disc 201 is kept fixed, and meanwhile, the suction disc 201 enters a state of being adsorbed;

[0054] As shown in Figure 2 , the switching between the first state and the second state is achieved, specifically, the holding part 1 can be divided into two symmetrical housings 101, the inside of the housing 101 is a hollow structure, thereby forming the gas storage area 3, the two housings 101 are fixedly connected through a steel pipe, and the inside of the two housings 101 is kept in communication, one of the two housings 101 is arranged in communication with an air suction device (such as a vacuum pump, a suction pump, etc.), when the inside of the housing 101 is vacuumized, the holding part 1 can be kept in the second state, when the inside of the housing 101 is broken vacuum, the holding part 1 returns to the first state.

[0055] Referring to Figures 2-5 , the fixing mode of the supporting end 5, a pressing part 6 is movably arranged on the holding part 1 close to the supporting end 5, one side of the pressing part 6 constitutes an inner wall of the gas storage area 3, and the other side faces outward, the moving direction of the pressing part 6 on the holding part 1 is a straight line direction, and is kept parallel to the rotating axis of the adjusting block 4, thus, after the inside of the gas storage area 3 is vacuumized, the pressing part 6 is pushed by the atmospheric pressure to move into the gas storage area 3, thereby forming an abutting relationship with the supporting end 5 to limit the movement of the supporting end 5, so as to fix the suction disc 201 at the current position, thereby achieving the keeping of the second state; as to the moving mode of the pressing part 6, specifically, the holding part 1 is provided with a slide 8 keeping the gas storage area 3 in communication with the outside, and the pressing part 6 is sealingly and slidably arranged in the slide 8, so that the pressing part 6 can move according to the pressure difference between the two sides.

[0056] Referring to Figure 4 , in order to increase the fixing effect of the supporting end 5 in the second state, the supporting end 5 is further fixedly connected with a stress plate 7, which includes at least two opposite stress surfaces 701, and each supporting end 5 corresponds to two pressing parts 6, and the two pressing parts 6 are arranged at the meeting faces of the two stress surfaces 701 respectively, thus, when the vacuum is formed in the gas storage area 3, the two pressing parts 6 abut on the two stress surfaces 701 respectively, to achieve a clamping effect on the stress plate 7, thereby increasing the fixing effect of the supporting end 5.

[0057] Referring to Figure 4In order to keep the suction cup 201 in the first state, it can be kept in the initial position by elasticity, the application further provides a spring member 9 corresponding to the support end 5, which is connected between the support end 5 and the holding part 1. The spring member 9 can be an elastic metal strip, which is connected between the inner wall of the gas storage area 3 and the support end 5.

[0058] With reference to Figure 1 And Figure 7 The end of the conveying path of the door conveying mechanism 10 is provided with a limiting part for limiting the door from being lifted, and the force receiving plate 7 is provided with a force detection element, which can be a pressure strain gauge and is arranged in the middle of the force receiving plate 7 by a sandwiching manner, so as to detect the pressing force of the force receiving plate 7. When the door is conveyed to the end of the path and is about to be lifted by the robot hand, the limiting part releases the limitation on the door when the force detection element detects that the force received by the force receiving plate 7 reaches a predetermined value, so that the door can be lifted by the robot hand. On the contrary, when it is detected that the force does not reach the predetermined value, the limiting part continues to keep the limitation on the door. This relationship can ensure that the door can be lifted only when the negative pressure in the gas storage area 3 reaches a certain degree, so as to prevent the door from being lifted when the suction cup 201 does not firmly adsorb the door, thereby increasing the safety guarantee.

[0059] The limiting part described herein includes a blocking rod 11 arranged on the path through which the door passes. The blocking rod 11 is actuated by a servo motor, which is arranged at a fixed position, for example, can be fixedly connected with the door conveying mechanism 10. The blocking rod 11 is connected with the servo motor, and an electrical signal cooperation relationship is established between the servo motor and the force detection element, so that the servo motor rotates according to the force detection structure of the force detection element, so as to correspondingly control the swing of the blocking rod 11, thereby realizing the effect of blocking or unblocking above the door.

[0060] The above is an introduction to a multi-point positioning robot hand. After being familiar with the above part, the door hinge automatic installation device described in the application will be described in detail through the embodiments as follows:

[0061] With reference to Figures 1-4 The first embodiment of the application provides a door hinge automatic installation device arranged on a multi-point positioning robot hand, and the application comprises:

[0062] The positioning end 12 is arranged in relative fixation with the holding part in the multi-point positioning robot hand, and the positioning end 12 is used for contacting a fixed position on the door, and the number thereof is multiple, so as to contact different positions of the door at the same time, thereby realizing the effect of positioning the multi-point positioning robot hand on the door during the carrying of the door;

[0063] The screwing part 13 is used for screwing the fastening screw of the door hinge, and is in the structure of a bit head, and the specific shape is determined according to the hole type on the screw cap. The screwing part 13 is movably arranged relative to the multi-point positioning manipulator. When the positioning end 12 is positioned relative to the door, the screwing part 13 is spaced apart from the fastening screw of the hinge. When the air flow acts on the screwing part 13, the screwing part 13 moves to be in contact with the fastening screw and rotates, so as to tighten the fastening screw on the hinge.

[0064] The vacuum breaking mode of the gas storage area is that the air flow from outside enters the gas storage area through a bypass, and the air flow needs to pass through the screwing part 13 in the process of entering, so that the multi-point positioning manipulator can automatically work through the vacuum breaking state of the gas storage area when the door is placed on the vehicle and separated from the door, so as to tighten the fastening screw on the hinge. In this way, the multi-point positioning manipulator can quickly connect the function of the present application after completing the carrying and separating from the door to realize the installation of the hinge, so as to improve the assembly efficiency of the door.

[0065] The above is a basic introduction of the present application. The specific structure of the present application will be introduced through a preferred mode as follows.

[0066] Referring to Figures 9-14 , the present application also includes a connecting arm 14, and the positioning end 12 is fixedly arranged on the connecting arm 14. The connecting arm 14 is fixedly connected with the holding part of the multi-point positioning manipulator, and can be in an integrated structure. The positioning end 12 is in the structure of a cap, and is used for covering the hinge shaft. When a plurality of positioning ends 12 are simultaneously arranged on a plurality of hinge shafts, the positioning of the multi-point positioning manipulator on the door is completed. Figure 13

[0067] Referring to Figures 9-14 , the screwing part 13 is movably arranged on the connecting arm 14 and is close to the position of the positioning end 12. The positioning end 12 is arranged to be matched with the screw of the hinge, so as to fully ensure the contact effect between the screwing part 13 and the screw during the movement of the screwing part 13, so as to reduce or prevent the misalignment between the screwing part 13 and the screw during the rotation of the screwing part 13.

[0068] Further, the rotation mode of the screwing part 13 is shown in Figure 13 and Figure 14 ​, the connecting arm 14 is provided with a pneumatic motor 15, the screwing part 13 is configured to be in transmission cooperation with the pneumatic motor 15, the gas storage area is connected with a first air inlet branch 16 extending to the outside, which is used for breaking the vacuum of the gas storage area, and the pneumatic motor 15 is connected in series on the first air inlet branch 16. When the first air inlet branch 16 is conducted, the external air enters the gas storage area along the first air inlet branch 16. In this process, the airflow passes through the pneumatic motor 15 to make it work, so as to realize the rotation of the screwing part 13.

[0069] In order to control the movement and rotation of the screwing part 13 through the activity of the pneumatic motor 15, specifically, continuing to refer to Figure 13 and Figure 14 , the pneumatic motor 15 is slidably arranged on the connecting arm 14, and a reset part 17 is connected between the pneumatic motor 15 and the connecting arm 14, and the screwing part 13 is connected with the output end of the pneumatic motor 15. The linear sliding process of the pneumatic motor 15 realizes the synchronous movement of the screwing part 13, so as to control the contact and separation of the screwing part 13 and the fastening screw on the hinge, Figures 10-12 The reset part 17 can adopt a reset spring, and the pneumatic motor 15 can be kept in a fixed position in a normal state through the reset part 17, that is, the screwing part 13 is separated from the screw. The first air inlet branch 16 includes a guide cavity 16a arranged on the connecting arm 14, the cavity is an axis extension structure, and a piston rod 18 is arranged in the guide cavity 16a. The piston rod 18 is connected with the pneumatic motor 15. The guide cavity 16a is communicated with the gas storage area through a pipeline 16b. The pneumatic motor 15 is connected in series on the pipeline 16b. The pipeline 16b also constitutes part of the first air inlet branch 16 at this position;

[0070] As shown in Figure 13 and Figure 14 , the end of the guide cavity 16a is configured with an open mouth 23 communicated with the outside. A on-off valve 24 (not shown in the figure) needs to be arranged in the open mouth 23. In the process of breaking the vacuum of the gas storage area, the on-off valve 24 is kept open, so that the external air enters the guide cavity 16a, thereby pushing the piston rod 18 to move, so that the pneumatic motor 15 and the screwing part 13 move synchronously. When the piston rod 18 moves to the position, the blockage between the pipeline 16b and the guide cavity 16a is removed, so that the airflow can pass through the pipeline 16b through the pneumatic motor 15, thereby reaching the gas storage area. At the same time, when the piston rod 18 moves to the position, the screwing part 13 keeps in contact with the screw, so that the screwing part 13 rotates during the working process of the pneumatic motor 15.

[0071] Further, the pneumatic motor 15 and the piston rod 18 can be configured in elastic connection, so that in the broken vacuum state, the screwing part 13 is in contact with the screw, and the air pressure can continue to press the piston rod 18, so that the piston rod 18 can continue to move a certain distance, and at this time, the communication between the pipeline 16b and the guide cavity 16a is opened, which increases the further resistance effect of the pneumatic motor 15, thereby further increasing the resistance effect between the screwing part 13 and the screw when in contact. Figure 13 and Figure 14 As shown in

[0072] Referring to Figures 13-15 , the connection mode between the screwing part 13 and the pneumatic motor 15, the application further comprises a transmission rod 20, the screwing part 13 and the transmission rod 20 are coupled at one end, and the other end of the transmission rod 20 is connected with the output end of the pneumatic motor 15. In this structure, through the coupling connection mode, when the screwing part 13 is tightened, it will not hinder the continued rotation of the pneumatic motor 15, so as to continue to complete the air flow into the storage area, to continue to complete the broken vacuum process of the storage area.

[0073] Figure 16 is a gas path diagram for the application about the air flow into the storage area when the storage area is broken vacuum, further referring to Figure 16 , in order to further increase the speed of the storage area broken vacuum without affecting the working of the pneumatic motor 15, the application further comprises a second air inlet branch 21, which is in parallel relationship with the pneumatic motor 15, and the second air inlet branch 21 is provided with a switching valve 22, which is in linkage relationship with the screwing part 13, specifically, only when the screwing part 13 and the transmission rod 20 are relatively active, the switching valve 22 is kept open.

[0074] During the rotation of the transmission rod 20 driven by the pneumatic motor 15, the screwing part 13 rotates synchronously, when the screw is tightened, the screwing part 13 cannot rotate, at this time, the transmission rod 20 idles, thereby forming relative rotation with the screwing part 13, which indicates that the screw is tightened, at this time, the switching valve 22 is opened, and the gas can also enter the storage area through the second gas path, thereby increasing the air inlet speed of the storage area, to increase the speed of the broken vacuum.

[0075] Further, for the above linkage mode, referring to Figure 15The twist part 13 is connected with the transmission rod 20 by magnetic coupling, and coils and a warning element are arranged in series on the twist part 13. The coils are embedded in the twist part 13 (not shown in the figure), and the warning element is used to send a warning signal. The warning element can be a micro light source 25 arranged on the outer surface of the twist part 13, which can emit light of a specific color within a certain range. The connecting arm 14 is provided with a receiving part for receiving the warning signal, which can be a light receiver 26, and is in electrical linkage with the switching valve 22. The switching valve 22 can be a normally closed electric valve and is in electrical linkage with the light receiver 26 through a PLC module or a single-chip microcomputer module. When the transmission rod 20 and the twist part 13 rotate relative to each other, the synchronous magnet at the end of the transmission rod 20 moves relative to the coils. Through the series connection, an induced current is formed on the coils through the micro light source 25, so that the light source 25 emits a light signal, which is detected by the light receiver 26 to control the operation of the switching valve 22.

[0076] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure, without undue experimentation.

[0077] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all modifications or replacements should be covered in the scope of the claims of the present application.

Claims

1. A door hinge automatic mounting device, characterized by: The utility model relates to a kind of multi-point positioning mechanical hand, and: Positioning end (12) is arranged relatively fixed with the multi-point positioning mechanical hand, and the multi-point positioning mechanical hand is positioned on the door by positioning end (12);Twist part (13) and connecting arm (14), the twist part (12) is arranged relatively active with the multi-point positioning mechanical hand, and is acted on hinge fastening screw by gas pressure, the multi-point positioning mechanical hand is in the process of forming vacuum and releasing vacuum, and it is connected and disconnected with door respectively, external airflow reaches vacuum from the twist part (13), the multi-point positioning mechanical hand includes holding part, and the holding part keeps door moving in space movement process, the positioning end (12) is fixed on connecting arm (14), the twist part (13) is active on connecting arm (14), and the positioning end (12) is aligned with hinge screw; Wherein: Connecting arm (14) is provided with pneumatic motor (15), and the twist part (13) is configured to be transmission matched with pneumatic motor (15), and the holding part is provided with gas storage area for controlling connection or disconnection with door, and the gas storage area is connected with first air inlet branch (16), and the pneumatic motor (15) is connected in series in first air inlet branch (16); The pneumatic motor (15) is slidably arranged on the connecting arm (14), and the connecting arm (14) is connected with the reset part (17) between the pneumatic motor (15), the twist part (13) is connected with the output end of the pneumatic motor (15), and the first air inlet branch (16) includes the guide cavity (16a) arranged on the connecting arm (14), and the piston rod (18) is arranged in the guide cavity (16a), the piston rod (18) is connected with the pneumatic motor (15), the guide cavity (16a) is communicated with the gas storage area through pipeline (16b), and the pneumatic motor (15) is connected in series on the pipeline (16b), and the output end of the pneumatic motor (15) is connected with the transmission rod (20), and the twist part (13) is coupled with the transmission rod (20). It further includes second air inlet branch (21), which is connected in parallel with the pneumatic motor (15), and the second air inlet branch (21) is provided with switch valve (22), which is linked with the twist part (13) to cooperate, only when the twist part (13) is relatively active with the transmission rod (20), the switch valve (22) remains open, the twist part (13) and the transmission rod (20) are magnetically coupled, the twist part (13) is arranged with electrically connected coil and warning element, the warning element is used to send warning signal, the connecting arm (14) is provided with receiving part for receiving warning signal, and the switch valve (22) is actuated by the receiving part. The pneumatic motor (15) and the piston rod (18) are elastically connected.

2. The automatic mounting device for a vehicle door hinge according to claim 1, characterized by: The pneumatic motor (15) and the piston rod (18) are connected by spring rod (19).

3. The automatic mounting device for a vehicle door hinge according to claim 2, characterized by: ​

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