Automatic mounting device for vehicle door hinge

Abstract

The invention relates to an automatic mounting device for a vehicle door hinge, which comprises a multi-point positioning manipulator, a positioning end, a mounting end, a mounting end and a mounting end, the positioning end is fixedly arranged relative to the multi-point positioning manipulator, and the multi-point positioning manipulator is positioned on a vehicle door through the positioning end; the screwing part is movably arranged relative to the multi-point positioning manipulator and acts on a hinge fastening screw through air pressure; when the interior of the multi-point positioning mechanical arm is located at the vacuum forming position and the hollow releasing position, the multi-point positioning mechanical arm is connected with the vehicle door and disconnected from the vehicle door, and external airflow reaches the vacuum position from the screwing part. Through cooperation of the positioning end, positioning of the carrying equipment on the vehicle door can be rapidly completed, and through cooperation with an air channel in the carrying equipment, the screwing part can be synchronously driven to work when the vehicle door is placed on a vehicle body, so that hinge installation is automatically achieved, and compared with the prior art, the hinge installation efficiency can be fully improved.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle door assembly equipment, and in particular relates to an automatic installation device for a vehicle door hinge. Background Art

[0002] Figure 8 The structure diagram of the vehicle door hinge in the prior art is shown in FIG. 1 , which is composed of a first hinge and a second hinge, which are respectively fixedly assembled on the vehicle body and the vehicle door in advance. When assembling the vehicle door, the 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, and the hinge shaft is restricted on the first hinge, thereby completing the installation of the vehicle door hinge.

[0003] As mentioned above, in the prior art, the installation of the door hinge mainly relies on manual use of hand-held tools to tighten the fastening screws. The disadvantage of this method is that the efficiency is relatively low, especially in large-scale production and assembly line operations, which requires the participation of a large number of operators, resulting in limited production capacity and a long production cycle. Summary of the invention

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

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

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

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

[0008] The screwing part is relatively movable with the multi-point positioning manipulator and acts on the hinge to tighten the screw through air pressure;

[0009] Among them, when the multi-point positioning manipulator is in the process of forming a vacuum and releasing a hollow position, it is connected with and disconnected from the vehicle door respectively, and the external airflow reaches the vacuum from the twisting part.

[0010] According to one embodiment of the present invention, a connecting arm is further included, the multi-point positioning manipulator includes a holding portion, the holding portion 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 invention, the twisting portion is movably disposed on the connecting arm, and the positioning end is aligned with the hinge screw.

[0012] According to one embodiment of the present invention, a pneumatic motor is provided on the connecting arm, the twisting portion is configured to cooperate with the pneumatic motor in transmission, the holding portion is provided with an air storage area for controlling the connection or release of the connection with the vehicle door, the air storage area is connected to a first air intake branch, and the pneumatic motor is connected in series to the first air intake branch.

[0013] According to one embodiment of the present invention, the pneumatic motor is slidably disposed on the connecting arm, and a reset part is connected to the connecting arm, the twisting part is connected to the output end of the pneumatic motor, the first air intake branch includes a guide cavity provided on the connecting arm, a piston rod is arranged therein, the piston rod is connected to the pneumatic motor, the guide cavity is connected to the air storage area through a pipeline, and the pneumatic motor is connected in series to the pipeline.

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

[0015] According to one embodiment of the present invention, the pneumatic motor and the piston rod are connected via a spring rod.

[0016] According to one embodiment of the present invention, it further comprises a transmission rod, the twisting portion is coupled to the transmission rod, and the transmission rod is connected to the output end of the pneumatic motor.

[0017] According to one embodiment of the present invention, it also includes a second air intake branch, which is connected in parallel with the pneumatic motor. A switching valve is arranged on the second air intake branch, which cooperates with the twisting part. The switching valve remains open only when the twisting part and the transmission rod are in relative motion.

[0018] According to one embodiment of the present invention, the twisting part is magnetically coupled to the transmission rod, an electrically connected coil and a warning element are arranged on the twisting part, the warning element is used to send a warning signal, a receiving part for receiving the warning signal is provided on the connecting arm, and the switching valve is actuated by the receiving part.

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

[0020] The present invention can quickly complete the positioning of the transporting equipment on the vehicle door through the cooperation of the positioning end, and cooperate with the air path inside the transporting equipment so that when the vehicle door is placed on the vehicle body, the twisting part can be synchronously driven to work, thereby automatically realizing the installation of the hinge. Compared with the existing technology, the installation efficiency of the hinge can be fully improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

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

[0023] Figure 2 For about Figure 1 A separate illustration of the robot part shown in .

[0024] Figure 3 For about Figure 2 Side view of.

[0025] Figure 4 For about Figure 2 Schematic diagram of partial three-dimensional cutting.

[0026] Figure 5 For about Figure 2 Another partial three-dimensional cut-away schematic diagram.

[0027] Figure 6 For about Figure 2 Schematic diagram of the splitting between the structures shown in the middle part.

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

[0029] Figure 8 The figure is a simplified structural diagram of a door hinge in the prior art.

[0030] Fig. 9 It is a three-dimensional diagram of one embodiment of the present invention.

[0031] Fig.10 For about Fig. 9 The structure shown is a schematic diagram of the installation and use of a multi-point positioning manipulator.

[0032] Fig.11 For about Fig.10 Another perspective view of .

[0033] Fig.12For about Fig.11 A partial enlarged display of the .

[0034] Fig.13 for Fig. 9 Interior cutaway illustration of the structure shown.

[0035] Fig.14 for Fig. 9 Another interior cutaway illustration of the structure shown.

[0036] Fig.15 It is a schematic diagram of the splitting between the twisting part and the transmission rod in the embodiment of the present invention.

[0037] Fig.16 Schematic diagram of the gas path between some structures in an embodiment of the present invention.

[0038] Reference numerals:

[0039] 1. Holding part; 101. Shell; 2. Connecting end; 201. Suction cup; 3. Air storage area; 4. Adjusting block; 5. Supporting end; 6. Extrusion part; 7. Force plate; 701. Force surface; 8. Slide; 9. Spring member; 10. Door transport mechanism; 11. Blocking rod; 12. Positioning end; 13. Twisting part; 14. Connecting arm; 15. Pneumatic motor; 16. First air intake branch; 16a. Guide cavity; 16b. Pipeline; 17. Reset part; 18. Piston rod; 19. Spring rod; 20. Transmission rod; 21. Second air intake 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-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0043] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0044] Before introducing the automatic door hinge installation device described in the present invention, the present invention will first introduce a multi-point positioning manipulator; specifically:

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

[0046] The door conveying mechanism 10 is composed of a plurality of conveyor belts for conveying the doors placed thereon, and the manipulator is located at the end of the conveying path of the door conveying mechanism 10 to grab the delivered doors;

[0047] The connecting end 2 is used to connect to the vehicle door. There are multiple connecting ends 2, which are movably arranged at multiple different locations on the holding portion 1. The holding portion 1 is used to connect to the power-assisting mechanical arm in the workshop. During the grasping process, the multiple connecting ends 2 can contact different parts of the vehicle door through the spatial movement of the holding portion 1. Through the movable arrangement, the position of the connecting end 2 on the holding portion 1 can be adjusted to ensure that each connecting end 2 can form contact with the vehicle door in the end;

[0048] The holding portion 1 is configured with at least a first state and a second state. In the first state, the plurality of connection ends 2 can remain movable on the holding portion 1, so that the relative positions between the plurality of connection ends 2 can be adjusted, and in this state, the connection ends 2 are disconnected from the vehicle door; when the plurality of connection ends 2 are in the second state, they remain fixed on the holding portion 1, so that the relative positions between the plurality of connection ends 2 are locked, and the connection ends 2 are connected to the vehicle door in this state;

[0049] As described above, when the connection end 2 is in a movable state with the holding portion 1, the connection end 2 has an elastic reset effect on the holding portion 1, that is, in the first state, the multiple connection ends 2 are always in a relatively fixed position when not subjected to external force. In the process of transporting the door, the holding portion 1 is kept in the first state, and the holding portion 1 is moved to be located at the end of the door transport mechanism 10, and the holding portion 1 is pressed so that the multiple connection ends 2 yield to the elastic force, so that they can form full contact with the door at the same time, and then switch to the second state. At this time, the multiple connection ends 2 and the holding portion 1 are in a relatively fixed state, and the connection portion is in contact with the door. The door can be lifted by moving the holding portion 1, so as to transport the door. When the door reaches the vehicle body and needs to be put down, switching to the first state can release the connection between the entire manipulator and the door.

[0050] Through the movable relationship between the connecting end 2 and the holding portion 1, it can automatically adapt to vehicle doors of different shapes during transportation, and through the relationship between the first state and the second state, the vehicle door can be quickly grasped and put down, thereby maintaining a certain transportation efficiency.

[0051] Reference Figure 1-7 The connecting end 2 may adopt a suction cup 201. Specifically, an air storage area 3 is provided on the holding portion 1. The air storage area 3 is connected to the plurality of suction cups 201. The air storage area 3 maintains normal pressure and negative pressure in the first state and the second state respectively to achieve the suction state of the car door. When the manipulator is in the process of transportation, the holding portion 1 is moved to the outside of the car door and pressed, so that the plurality of suction cups 201 can contact the outer surface of the car door, and the door can be picked up and put down by switching between the first state and the second state.

[0052] Reference Figure 2-6 Regarding the arrangement of the suction cup 201 on the holding portion 1, specifically, the multi-point positioning manipulator also includes an adjusting block 4, which is rotatably connected to the holding portion 1. One side of the adjusting block 4 is an air storage cavity, and the other side faces the outside. The sealing of the air storage cavity is maintained by the adjusting block 4. The suction cup 201 is connected with a support end 5, which is a hollow structure and is connected to the suction cup 201. The other end of the support end 5 movably penetrates the adjusting block 4 and extends into the air storage area 3. Through the movable penetration, the support end 5 can slide through the adjusting block 4 to achieve the suction cup 201 moving away from or approaching the holding portion 1, so that in the process of connecting the car door, it can conform to the shape of the outer side of the car door, thereby maintaining full contact between the suction cup 201 and the car door. Through the rotation effect of the adjusting block 4, the suction cup 201 can also swing at a limited angle, thereby further increasing the adjustable range of the position of the suction cup 201 in the process of pressing the holding portion 1.

[0053] A linkage relationship is configured between the gas storage area 3 and the support end 5, so that one end of the support end 5 can be kept in a movable state and a fixed state in the gas storage area 3 when in the first state and the second state, respectively. Thus, when the holding portion 1 is in the first state, the support end 5 can be moved in the gas storage area 3 to adjust the position of the suction cup 201, and at the same time keep the suction cup 201 in a state of releasing air suction; when the holding portion 1 is in the second state, the support end 5 is fixed, the position of the suction cup 201 is kept fixed, and at the same time enters a state of adsorption;

[0054] like Figure 2 As shown, regarding the switching between the first state and the second state, specifically, the holding portion 1 can be divided into two symmetrically arranged shells 101 on the left and right, the interior of the shell 101 is a hollow structure, thereby forming the gas storage area 3, the two shells 101 are fixedly connected by a steel pipe, and the interiors of the two shells 101 are kept connected, and one of the shells 101 is configured to be connected to an air suction device (such as a hollow pump, a suction pump, etc.), when the interior of the shell 101 is hollowed out, the holding portion 1 can be kept in the second state, and when the shell 101 is hollowed out, it returns to the first state.

[0055] Reference Figure 2-5 Regarding the fixing method of the support end 5, an extrusion part 6 is movably provided on the holding part 1 near the support end 5, one side of the extrusion part 6 constitutes the inner wall of the gas storage area 3, and the other side faces the outside. The moving direction of the extrusion part 6 on the holding part 1 is a linear direction, and is kept parallel to the rotation axis of the adjusting block 4. Therefore, after the gas storage area 3 is evacuated, the extrusion part 6 moves into the gas storage area 3 under the thrust of the atmospheric pressure, thereby forming a tight relationship with the support end 5 to limit the movement of the support end 5, so as to fix the suction cup 201 in the current position, thereby achieving the maintenance of its second state; Regarding the moving method of the extrusion part 6, specifically, a slideway 8 is provided on the holding part 1 to keep the gas storage area 3 connected with the outside, and the extrusion part 6 is sealingly slidably arranged in the slideway 8, so that the extrusion part 6 can move according to the pressure difference on both sides thereof.

[0056] Reference Figure 4 In order to increase the effect of keeping the support end 5 fixed in the second state, a force-bearing plate 7 is fixedly connected to the support end 5, which includes at least two symmetrical force-bearing surfaces 701, and each support end 5 corresponds to two extrusion parts 6, and the two extrusion parts 6 are respectively arranged at the front faces of the two force-bearing surfaces 701. Therefore, when a hollow is formed in the gas storage area 3, the two extrusion parts 6 respectively contact the two force-bearing surfaces 701, thereby achieving a clamping effect on the force-bearing plate 7, thereby increasing the fixing effect on the support end 5.

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

[0058] Reference Figure 1 and Figure 7 , a limiting part for limiting the door from being lifted is provided at the end of the transport path of the door transport mechanism 10, and a force detection element is arranged on the force plate 7. The force detection element can be a pressure strain gauge or other element, which can be arranged in the middle of the force plate 7 in a sandwich arrangement, so that the squeezing force of the force plate 7 can be detected. When the door is transported to the end of the path and is grabbed by the manipulator and is about to be picked up, when the force detection element detects that the force of the force plate 7 reaches a predetermined level, the limiting part releases the restriction on the door, so that the door can be lifted by the manipulator. On the contrary, when it is detected that the force does not reach the predetermined value, the limiting part continues to maintain the restriction state of the door. This action relationship can ensure that the door is allowed to be lifted only when the negative pressure in the gas storage area 3 reaches a certain level, so as to prevent the suction cup 201 from failing to firmly adsorb the door, thereby increasing safety.

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

[0060] The above is an introduction to a multi-point positioning manipulator. After being familiar with the above, the automatic door hinge installation device of the present invention will be described in detail through embodiments below:

[0061] Reference Figure 1-4 The first embodiment of the invention provides a door hinge automatic installation device, which is arranged on a multi-point positioning manipulator. The invention comprises:

[0062] The positioning end 12 is relatively fixedly arranged with the holding part of the multi-point positioning manipulator, and the positioning end 12 is used to contact a fixed position on the vehicle door. There are multiple positioning ends 12, so that when the positioning ends 12 contact multiple different positions of the vehicle door at the same time, the multi-point positioning manipulator can position the vehicle door during the process of transporting the vehicle door.

[0063] The screwing part 13 is used to screw the fastening screw of the door hinge. The screwing part 13 is a screwdriver bit structure. The specific shape is determined according to the hole type on the screw nut. The screwing part 13 and the multi-point positioning manipulator are relatively movable. When the positioning end 12 is positioned with the door, a certain distance is formed between the screwing part 13 and the fastening screw of the hinge. When airflow acts on the screwing part 13, the screwing part 13 moves to contact with the fastening screw and rotates, thereby tightening the fastening screw on the hinge;

[0064] Among them, the vacuum breaking method of the air storage area is to allow the external air flow to enter the air storage area through a bypass, and the air flow needs to pass through the twisting part 13 during the entering process, so that when the multi-point positioning manipulator places the vehicle door on the vehicle body and separates it from the vehicle door, the twisting part 13 automatically works through the vacuum breaking state of the air storage area, thereby tightening the fastening screws on the hinge. In this way, the multi-point positioning manipulator can quickly connect with the function of the present invention to realize the installation of the hinge after completing the transportation and separating from the vehicle door, thereby improving the assembly efficiency of the vehicle door.

[0065] The above is a basic introduction to the present invention. The specific structure of the present invention will be introduced in a preferred embodiment as follows:

[0066] Reference Figure 9-14 The present invention further comprises a connecting arm 14, the positioning end 12 is fixedly arranged on the connecting arm 14, the connecting arm 14 is fixedly connected to the holding portion of the multi-point positioning manipulator, and can be specifically an integrated structure, the positioning end 12 is as follows Fig.13 As shown, it is a cap structure used to cover the hinge shaft of the hinge. When multiple positioning ends 12 cover the hinge shafts of multiple hinges respectively and simultaneously, the multi-point positioning manipulator is positioned on the vehicle door.

[0067] Reference Figure 9-14 The twisting portion 13 is movably arranged on the connecting arm 14 and is close to the position of the positioning end 12. By arranging the positioning end 12 to be aligned with the screw of the hinge, the contact effect between the twisting portion 13 and the screw during the movement is fully guaranteed, so as to reduce or prevent the misalignment between the twisting portion 13 and the screw during the rotation process.

[0068] Further, regarding the rotation mode of the twisting portion 13, refer to Fig.13 and Fig.14The connecting arm 14 is provided with an air motor 15, and the twisting part 13 is configured to cooperate with the air motor 15 in transmission. The air storage area is connected with a first air intake branch 16 extending into the outside, which is used to break the vacuum of the air storage area. The air motor 15 is connected in series to the first air intake branch 16. When the first air intake branch 16 is turned on, the external air enters the air storage area along the first air intake branch 16. In this process, the air flow passes through the air motor 15 to make it work, thereby realizing the rotation of the twisting part 13.

[0069] In order to control the movement and rotation of the screwing part 13 through the activity of the pneumatic motor 15, for details, continue to refer to Fig.13 and Fig.14 The pneumatic motor 15 is slidably disposed on the connecting arm 14, and a reset portion 17 is connected between the connecting arm 14. The twisting portion 13 is connected to the output end of the pneumatic motor 15. The pneumatic motor 15 realizes the synchronous movement of the twisting portion 13 during the linear sliding process, thereby controlling the contact and separation between the twisting portion 13 and the fastening screw on the hinge. Figure 10-12 The state shown is a separation state, and the reset part 17 can adopt a reset spring. The reset part 17 can keep the pneumatic motor 15 in a fixed position in the normal state, that is, the state where the screwing part 13 is separated from the screw. The first air intake branch 16 includes a guide cavity 16a provided on the connecting arm 14, and the cavity is an axially extended structure, and a piston rod 18 is arranged therein, and the piston rod 18 is connected to the pneumatic motor 15. The guide cavity 16a is connected to the air storage area through a pipeline 16b, and the pneumatic motor 15 is connected in series to the pipeline 16b. The pipeline 16b also constitutes a part of the first air intake branch 16 here;

[0070] like Fig.13 and Fig.14 As shown, the end of the guide cavity 16a is constructed with an opening 23 connected to the outside, and a shutoff valve 24 (not shown in the figure) needs to be configured in the opening 23. During the process of breaking the vacuum in the gas storage area, by keeping the shutoff valve 24 open, external air enters the guide cavity 16a, thereby pushing the piston rod 18 to move, so that the pneumatic motor 15 and the twisting part 13 move synchronously. When the piston rod 18 moves into place, the obstruction to the connection between the pipeline 16b and the guide cavity 16a is released, so that the airflow can pass through the pipeline 16b through the pneumatic motor 15, and then reach the gas storage area. At the same time, when the piston rod 18 moves into place, the twisting part 13 is kept in contact with the screw, so that the twisting part 13 can be rotated during the operation of the pneumatic motor 15.

[0071] Furthermore, the pneumatic motor 15 and the piston rod 18 can be configured to be elastically connected, so that in the vacuum breaking state, the twisting portion 13 forms contact with the screw, and the air pressure can continue to squeeze the piston rod 18, so that the piston rod 18 can continue to move a certain distance, and only then will the connection between the pipeline 16b and the guide cavity 16a be opened. This structural design increases the further resistance effect on the pneumatic motor 15, thereby further increasing the tightening effect when the twisting portion 13 and the screw are in contact; specifically, as Fig.13 and Fig.14 As shown, for the elastic connection, the pneumatic motor 15 and the piston rod 18 can be connected via a spring rod 19 .

[0072] Reference Figure 13-15 Regarding the connection method between the screwing part 13 and the pneumatic motor 15, the present invention also includes a transmission rod 20, and the screwing part 13 is coupled to one end of the transmission rod 20, and the other end of the transmission rod 20 is connected to the output end of the pneumatic motor 15. In this structure, through the coupling connection method, when the screwing part 13 tightens the screw, it will not hinder the continued rotation of the pneumatic motor 15, so that the air flow can continue to enter the air storage area, so as to continue to complete the vacuum breaking process of the air storage area.

[0073] Fig.16 A schematic diagram of a gas path for gas flow into the gas storage area when the gas storage area breaks vacuum in the present invention. Fig.16 In order to further increase the speed of breaking the vacuum in the air storage area without affecting the operation of the pneumatic motor 15, the present invention further includes a second air intake branch 21, which is in parallel with the pneumatic motor 15. A switching valve 22 is arranged on the second air intake branch 21, and a linkage relationship is arranged between the switching valve 22 and the twisting part 13. Specifically, the switching valve 22 is kept open only when the twisting part 13 and the transmission rod 20 are in relative motion.

[0074] When the transmission rod 20 is driven to rotate 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 rotates idly, thereby forming a relative rotation with the screwing part 13. This state indicates that the screw has been tightened. At this time, the switching valve 22 is opened, and the gas can also enter the gas storage area through the second gas path, thereby increasing the air intake speed of the gas storage area to increase its vacuum breaking speed.

[0075] Further, for the above linkage method, refer to Fig.15, the twisting part 13 and the transmission rod 20 can be connected by magnetic coupling, and a series coil and a warning element are arranged on the twisting part 13, and the coil is buried in the twisting part 13 (not shown in the figure). The warning element is used to send a warning signal. The warning element can be, for example, a miniature light source 25, which is arranged on the outer surface of the twisting part 13, so that it can emit light of a specific color within a certain range. A receiving part for receiving the warning signal is provided on the connecting arm 14, which can adopt a light receiver 26 and establish an electrical linkage relationship with the switching valve 22. The switching valve 22 can adopt a normally closed electric valve and be electrically linked with the light receiver 26 through a PLC module or a single-chip microcomputer module. When relative rotation occurs between the transmission rod 20 and the twisting part 13, the synchronous magnet at the end of the transmission rod 20 and the coil move relative to each other. Through the series relationship, an induced current passing through the miniature light source 25 is formed on the coil, so that a light signal is emitted from the light source 25, which is detected by the light receiver 26 to control the operation of the switching valve 22.

[0076] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention 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 invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic door hinge installation device, characterized in that: Includes multi-point positioning manipulator, and: A positioning end (12) is relatively fixedly arranged with the multi-point positioning manipulator, and the multi-point positioning manipulator is positioned on the vehicle door via the positioning end (12); The screwing part (13) is relatively movable with the multi-point positioning manipulator and acts on the hinge fastening screw through air pressure; Wherein, when the multi-point positioning manipulator is in the process of forming a vacuum and releasing a hollow position, it is connected to and released from the vehicle door respectively, and the external airflow reaches the vacuum position from the twisting part (13).

2. The automatic door hinge installation device according to claim 1, characterized in that: It also includes a connecting arm (14), the multi-point positioning manipulator includes a holding portion, the holding portion keeps the vehicle door moving during spatial movement, and the positioning end (12) is fixedly arranged on the connecting arm (14).

3. The automatic door hinge installation device according to claim 2, characterized in that: The twisting portion (13) is movably arranged on the connecting arm (14), and the positioning end (12) is aligned with the hinge screw.

4. The automatic door hinge installation device according to claim 3, characterized in that: The connecting arm (14) is provided with a pneumatic motor (15), the twisting portion (13) is configured to cooperate with the pneumatic motor (15) in transmission, the holding portion is provided with an air storage area for controlling connection or disconnection with the vehicle door, the air storage area is connected to a first air intake branch (16), and the pneumatic motor (15) is connected in series to the first air intake branch (16).

5. The automatic door hinge installation device according to claim 4, characterized in that: The pneumatic motor (15) is slidably arranged on the connecting arm (14), and a reset portion (17) is connected to the connecting arm (14); the twisting portion (13) is connected to the output end of the pneumatic motor (15); the first air intake branch (16) comprises a guide cavity (16a) arranged on the connecting arm (14), a piston rod (18) is arranged in the guide cavity, and the piston rod (18) is connected to the pneumatic motor (15); the guide cavity (16a) is connected to the air storage area through a pipeline (16b), and the pneumatic motor (15) is connected in series to the pipeline (16b).

6. The automatic door hinge installation device according to claim 5, characterized in that: The pneumatic motor (15) and the piston rod (18) are elastically connected.

7. The automatic door hinge installation device according to claim 6, characterized in that: The pneumatic motor (15) and the piston rod (18) are connected via a spring rod (19).

8. The automatic door hinge installation device according to claim 5, characterized in that: It also comprises a transmission rod (20), the screwing part (13) is coupled to the transmission rod (20), and the transmission rod (20) is connected to the output end of the pneumatic motor (15).

9. The automatic door hinge installation device according to claim 8, characterized in that: The invention also comprises a second air intake branch (21), wherein the second air intake branch (21) is connected in parallel with the pneumatic motor (15), and a switching valve (22) is arranged on the second air intake branch (21), and the switching valve (22) cooperates with the screwing part (13), and the switching valve (22) remains open only when the screwing part (13) and the transmission rod (20) are in relative motion.

10. The automatic door hinge installation device according to claim 9, characterized in that: The twisting part (13) is magnetically coupled to the transmission rod (20); an electrically connected coil and a warning element are arranged on the twisting part (13); the warning element is used to send a warning signal; a receiving part for receiving the warning signal is arranged on the connecting arm (14); and the switching valve (22) is actuated by the receiving part.

Images