A floating type suction flat mechanism for a vehicle door

Abstract

The application provides a vehicle door mounting floating type suction flattening mechanism, which comprises a base and a floating type suction flattening mechanism, the floating type suction flattening mechanism comprises a base, a floating block, a suction part and a suction support part, the base is slidingly installed on the base, the floating block is floatingly connected to the base and can elastically float in a linear direction relative to the base, the suction part and the suction support part are respectively installed on the floating block, the suction support part is located at the periphery of the suction part, the suction support part is attached to the surface of a workpiece for supporting the working end of the suction part, the base is driven to slide back and forth relative to the base by a driving mechanism, so as to drive the suction part and the suction support part to approach or move away from the workpiece, and then the floating type suction of the suction part on the workpiece is realized. The application has the advantages that the accurate control of the repeatability and stability of the vehicle door mounting is realized, the self-adaptive floating type suction positioning of the vehicle door is realized, and the size deviation fluctuation of the vehicle body is effectively compatible.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile welding tool, more particularly to a floating type door installation suction mechanism. BACKGROUND

[0002] In the process of automatic door installation in the field of automobile welding, the door is generally sucked by a pure suction cup structure, which has the following defects:

[0003] The pure suction cup structure has wrinkles, so the repeatability and stability of door installation are difficult to control accurately, and the precise positioning control of door installation cannot be guaranteed. At the same time, the pure suction cup structure is directly and rigidly connected to the robot, and cannot be compatible with the error caused by the size fluctuation of the body, for example, if the size of the side body fluctuates in the Y direction of the vehicle, the repeatability and stability of door installation will be deviated. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a floating type door installation suction mechanism to realize the accurate control of the repeatability and stability of door installation.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A floating type door installation suction mechanism, comprising a base and a floating type suction mechanism arranged on the base, the floating type suction mechanism comprising a base, a floating block, a suction part and a suction support part, the base being slidingly installed on the base, the floating block being elastically connected to the base and being able to elastically float in a straight line direction relative to the base, the suction part and the suction support part being respectively installed on the floating block, and the suction support part being located at the periphery of the suction part, the suction support part being attached to the surface of the workpiece for supporting the working end of the suction part, the base being driven by a driving mechanism to slide back and forth relative to the base along the floating direction of the floating block, so as to drive the suction part and the suction support part to approach or move away from the workpiece, and then realize the floating suction of the workpiece by the suction part.

[0007] As a preferred solution of the above-mentioned mechanism, the base is provided with a mounting plate, the floating block is connected to the mounting plate through a floating connection structure, the floating connection structure comprises at least two screw rods and at least one guide pin, each screw rod and guide pin extends along the floating direction of the floating block, the first end of each screw rod and guide pin is fixedly connected to the mounting plate, the floating block is provided with a guide hole for the guide pin to slide through, and the floating block is provided with a floating hole for the screw rod to slide through, the screw rod is provided with an elastic part at the middle section, the two ends of the elastic part are elastically pressed on the mounting plate and the floating block respectively, and the end of the screw rod is provided with a limiting structure for limiting the outer limit position of the floating block.

[0008] As a preferred solution of the above mechanism, the side of the floating block close to the mounting plate is the inner side, the mounting plate has a first accommodating hole on the inner side for embedding the first end of the elastic component, the floating block has a second accommodating hole on the inner side for embedding the second end of the elastic component, and the two ends of the elastic component are respectively elastically pressed against the step surface at the end of the first accommodating hole and the step surface at the end of the second accommodating hole.

[0009] As a preferred solution of the above mechanism, the limiting structure at the end of the screw rod is a limiting nut matched with the screw thread of the screw rod, and the floating block is limited by the limiting nut from the outside.

[0010] As a preferred solution of the above mechanism, the screw rod is screwed with the threaded hole on the mounting plate, and a locking nut is screwed at the first end of the screw rod and pressed against the outside of the mounting plate.

[0011] As a preferred solution of the above mechanism, the end face of the first end of the guide pin shaft has a threaded hole, a limiting bolt is screwed into the threaded hole of the first end of the guide pin shaft from the outside of the mounting plate, the guide pin shaft has a limiting protruding ring at the position inside the mounting plate, and the limiting protruding ring and the head of the limiting bolt are respectively limited by the inside and outside of the mounting plate.

[0012] As a preferred solution of the above mechanism, the inner side wall of the guide hole of the floating block is provided with a bushing, and the guide pin shaft is slidingly matched with the inner hole of the bushing.

[0013] As a preferred solution of the above mechanism, the adsorbing support part is a profiled support block, the adsorbing part includes a sucker rod and a sucker connected with each other, a main connecting block is fixedly installed on the floating block, the profiled support block is directly installed on the main connecting block, and the sucker rod is installed on the main connecting block through the sucker connecting block.

[0014] As a preferred solution of the above mechanism, the driving mechanism is a first module, the base of the floating type flat adsorbing mechanism is installed on the sliding block of the first module, a second module is further arranged on the base, the second module is installed on the base, the first module is installed on the sliding block of the second module through an adapter plate, the floating type flat adsorbing mechanism is driven to slide back and forth along the floating direction of the floating block through the first module, and the first module and the floating type flat adsorbing mechanism thereon are driven to slide back and forth along the direction perpendicular to the floating direction of the floating block through the second module.

[0015] As a preferred solution of the above mechanism, the part of the adapter plate extending from the sliding block of the second module is a cantilevered section, the bottom of the cantilevered section of the adapter plate is supported by an auxiliary support structure, the auxiliary support structure includes a support guide rail and a support sliding block in sliding cooperation, the support guide rail is installed on the base and extends along the direction perpendicular to the floating direction of the floating block, the bottom of the cantilevered section of the adapter plate is fixed with a support sliding block mounting seat, and the top of the support sliding block is fixedly connected with the support sliding block mounting seat.

[0016] Compared with the prior art, the present application has the beneficial effects of:

[0017] 1. The floating type suction flat mechanism for vehicle door installation provided by the present application has the following beneficial effects: the suction support part is arranged on the periphery of the suction part, and when the working end of the suction part is used to suck the vehicle door, the suction support part is attached to the surface of the vehicle door to effectively support the working end of the suction part, thereby playing a role of positioning and limiting the working end of the suction part, so as to ensure the accurate positioning of the vehicle door installation and the stability of the installation position; meanwhile, the suction part and the suction support part are respectively installed on the floating block, the floating block is connected to the base in a floating manner and can elastically float in the linear direction relative to the base, so that the elastic floating type contact of the suction part and the suction support part with the surface of the workpiece is realized, and the installation error of the vehicle door caused by the size fluctuation of the vehicle body can be effectively compatible.

[0018] 2. The floating type suction flat mechanism for vehicle door installation provided by the present application has the following beneficial effects: the floating connection structure between the floating block and the mounting plate adopts the cooperation of the screw rod and the elastic part to realize the elastic floating function of the floating block, and the floating direction of the floating block is accurately guided through the guide pin shaft, so that the realization of the directional elastic floating function of the floating block is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram of the present application.

[0020] Figure 2 is the structure schematic diagram of the first module and the second module part of the present application.

[0021] Figure 3 is the structure schematic diagram of the floating type suction flat mechanism of the present application.

[0022] Figure 4 is the side view of the floating type suction flat mechanism of the present application.

[0023] Figure 5 is the A-A sectional view of Figure 4 .

[0024] Figure 6 is the structure schematic diagram of the working state of the present application.

[0025] In the drawings, 1 is the base; 2 is the floating type suction flat mechanism; 3 is the base; 4 is the floating block; 5 is the profiling support block; 6 is the suction disc rod; 7 is the suction disc; 8 is the main connecting block; 9 is the suction disc connecting block; 10 is the first module; 11 is the first sliding block; 12 is the second module; 13 is the adapter plate; 14 is the second sliding block; 15 is the support guide rail; 16 is the support sliding block; 17 is the support sliding block mounting seat; 18 is the mounting plate; 19 is the screw rod; 20 is the guide pin shaft; 21 is the elastic part; 22 is the first containing hole; 23 is the second containing hole; 24 is the limiting nut; 25 is the locking nut; 26 is the limiting bolt; 27 is the limiting convex ring; 28 is the bushing; 29 is the back door; and 30 is the vehicle body. DETAILED DESCRIPTION

[0026] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0027] Please refer to Figures 1 to 5 The embodiment provides a floating type suction mechanism for vehicle door installation, which comprises a base 1 and a floating type suction mechanism 2 arranged on the base 1. The base 1 is supported on the ground. The floating type suction mechanism 2 comprises a base 3, a floating block 4, a suction part and a suction support part. The base 3 is slidingly installed on the base 1. The floating block 4 is floatingly connected to the base 3 and can elastically float in a linear direction relative to the base 3. The elastic floating direction of the floating block 4 relative to the base 3 is the left-right direction. The suction part and the suction support part are respectively installed on the floating block 4, and the suction support part is located at the periphery of the suction part. The suction support part is a profiled support block 5. The suction part comprises a suction disc rod 6 and a suction disc 7 connected to each other. A main connecting block 8 is fixedly installed on the floating block 4. The profiled support block 5 is directly installed on the main connecting block 8. The suction disc rod 6 is installed on the main connecting block 8 through a suction disc connecting block 9. The suction support part is attached to the surface of a workpiece for supporting the working end of the suction part. The base 3 is driven to slide back and forth relative to the base 1 along the floating direction of the floating block 4 by a driving mechanism, so as to drive the floating block 4, the suction part and the suction support part to move together, so that the suction part and the suction support part are close to or away from the workpiece, and then the floating type suction of the suction part to the workpiece is realized.

[0028] The driving mechanism is a first module 10. The base 3 of the floating type suction mechanism 2 is installed on a first sliding block 11 of the first module 10. A second module 12 is further arranged on the base 1. The second module 12 is installed on the base 1. The first module 10 is installed on a second sliding block 14 of the second module 12 through a conversion plate 13. The floating type suction mechanism 2 is driven to slide back and forth along the floating direction of the floating block 4 by the first module 10. The first module 10 and the floating type suction mechanism 2 thereon are driven to slide back and forth along a direction perpendicular to the floating direction of the floating block 4 by the second module 12. The direction in which the second module 12 drives the first module 10 and the floating type suction mechanism 2 thereon to slide is the front-back direction.

[0029] The first module 10 and the second module 12 can be linear modules.

[0030] The overhanging section of the adapter plate 13 is supported by an auxiliary support structure, which includes a slidingly fitted support rail 15 and a support slider 16. The support rail 15 is installed on the base 1 and extends in a direction perpendicular to the floating direction of the floating block 4. The bottom of the overhanging section of the adapter plate 13 is fixed with a support slider mounting seat 17, and the top of the support slider 16 is fixedly connected with the support slider mounting seat 17. The auxiliary support structure is provided to assist in supporting the bottom of the overhanging section of the adapter plate 13, thereby stably supporting the adapter plate 13, the first mold set 10, and the floating type flat suction mechanism 2 thereon, and preventing the floating type flat suction mechanism 2 from being subjected to unbalanced load when sliding linearly.

[0031] The base 3 is provided with a mounting plate 18, and the floating block 4 is connected with the mounting plate 18 through a floating connection structure. The floating connection structure includes at least two screw rods 19 and at least one guide pin 20. The number of the screw rods 19 and the guide pin 20 can be specifically set according to actual conditions. In the embodiment, the floating connection structure adopts four screw rods 19 and two guide pins 20. Each screw rod 19 and guide pin 20 extends along the floating direction of the floating block 4. The first end of each screw rod 19 and guide pin 20 is fixedly connected with the mounting plate 18. The floating block 4 is provided with a guide hole through which the guide pin 20 slides, and a floating hole through which the screw rod 19 slides. The middle section of the screw rod 19 is sleeved with an elastic component 21. The two ends of the elastic component 21 are elastically pressed against the mounting plate 18 and the floating block 4, respectively. The end of the screw rod 19 is provided with a limiting structure for limiting the outer limit position of the floating block 4.

[0032] The side close to the floating block 4 and the mounting plate 18 is defined as the inner side. The inner side of the mounting plate 18 is provided with a first containing hole 22 for embedding the first end of the elastic component 21. The inner side of the floating block 4 is provided with a second containing hole 23 for embedding the second end of the elastic component 21. The two ends of the elastic component 21 are elastically pressed against the step surface at the end of the first containing hole 22 and the step surface at the end of the second containing hole 23, respectively. The containing holes for embedding the two ends of the elastic component 21 are formed in the inner side of the mounting plate 18 and the inner side of the floating block 4, respectively, thereby stably supporting and guiding the elastic component 21. In combination with the guiding and supporting effect of the screw rod 19 on the elastic component 21, the elastic component 21 can be effectively prevented from being skewed, thereby affecting the effect and direction of the elastic floating of the floating block 4.

[0033] The limiting structure at the end of the screw rod 19 is a limiting nut 24 threadedly matched with the screw rod 19. The limiting nut 24 is abutted against the outer side of the floating block 4, thereby limiting the outer limit position of the floating block 4 floating outward, and effectively preventing the floating block 4 from being detached from the end of the screw rod 19. The elastic pre-tightening force of the elastic component 21 can also be adjusted through the limiting nut 24.

[0034] The screw rod 19 is screwed with the threaded hole on the mounting plate 18, and a lock nut 25 is screwed at the first end of the screw rod 19, and the lock nut 25 is pressed against the outer side of the mounting plate 18. This connection mode is simple in structure, convenient to install, and stable in connection.

[0035] A threaded hole is formed on the end face of the first end of the guide pin shaft 20, a limiting bolt 26 is screwed into the threaded hole of the first end of the guide pin shaft 20 from the outer side of the mounting plate 18, the guide pin shaft 20 is provided with a limiting convex ring 27 at the part located on the inner side of the mounting plate 18, the limiting convex ring 27 and the head of the limiting bolt 26 are respectively limited by the inner and outer sides of the mounting plate 18, which prevents the guide pin shaft 20 from moving left and right on the mounting plate 18, ensures the stable installation of the guide pin shaft 20 and the mounting plate 18, and is convenient and fast in installation process.

[0036] A bushing 28 is arranged on the inner side wall of the guide hole of the floating block 4, and the guide pin shaft 20 is in sliding fit with the inner hole of the bushing 28. Compared with the direct contact between the guide pin shaft 20 and the guide hole of the floating block 4, the arrangement of the bushing 28 can slow down the wear and reduce the friction.

[0037] The floating door mounting and flat suction mechanism provided in the embodiment can be used for the suction of the door during the installation of the door. Especially, the flat suction mechanism can be used for the flat suction of the installed rear door 29 during the installation of the front door, so that the flat suction rear door 29 is used as a reference point for the installation of the front door, and the specific process is as follows:

[0038] In the following description, the front-rear direction of the vehicle body 30 is the X direction of the vehicle system, the left-right direction of the vehicle body 30 is the Y direction of the vehicle system, and the vertical direction of the vehicle body 30 is the Z direction of the vehicle system.

[0039] Referring to Figure 6The body 30 with the installed rear door 29 is placed in the front door automatic installation station. The suction and flattening mechanism in this embodiment is located outside the rear door 29 of the body 30. First, the second module 12 is used to adjust the position of the floating suction and flattening mechanism 2 in the X direction of the vehicle. After the X direction position is adjusted, the profiling support block 5 is located outside the connection between the rear end of the rear door 29 and the body 30. Then, the first module 10 is used to adjust the position of the floating suction and flattening mechanism 2 in the Y direction of the vehicle, so that the floating suction and flattening mechanism 2 approaches the rear door 29 in the Y direction of the vehicle. Under the self-adaptive action of the elastic floating of the floating suction and flattening mechanism 2, the suction part and the suction support part reach the final suction position. At this time, a part of the profiling support block 5 is supported and attached to the side wall of the body 30, the suction cup 7 inhales, and the rear door 29 is suctioned to the target position. At this time, the surface of the rear door 29 is in contact with the profiling support block 5, that is, the rear door 29 is suctioned to be flush with the body 30. The suctioned and flattened rear door 29 serves as a visual reference point in the front door installation process. In the front door installation process, since the rear door 29 is always floated and flattened by the floating suction and flattening mechanism 2, it can accommodate the error caused by the size fluctuation of the body 30, especially in the Y direction of the vehicle, and can always keep the rear door 29 in the flattened state, thereby providing a reliable and stable rear door 29 reference state for the front door automatic installation, and further ensuring the installation precision of the front door.

[0040] In the above process, the suction support part is first attached to the side wall of the body 30. Since the body 30 is stationary, the rear door 29 can rotate freely and slightly around the hinge. Therefore, the suction support part is first attached to the stationary side wall of the body 30 under the floating action. Since the suction cup 7 has a wrinkle at the end and the suction end of the suction cup 7 is convex to the support surface of the suction support part, the suction cup is in contact with the outer surface of the rear door 29 at this time. Then, the suction cup 7 inhales, and the rear door 29 is suctioned and pulled to the state of being flush with the side wall of the body 30 by the suction cup 7. At this time, the target position of the rear door 29 is reached.

[0041] The above is only a preferred embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A floating suction-leveling mechanism for installing on a car door, characterized in that: The device includes a base (1) and a floating suction mechanism (2) set on the base (1). The floating suction mechanism (2) includes a base (3), a floating block (4), an adsorption part, and an adsorption support part. The base (3) is slidably installed on the base (1). The floating block (4) is floatingly connected to the base (3) and can float elastically relative to the base (3) in a straight line direction. The adsorption part and the adsorption support part are respectively installed on the floating block (4). The adsorption support part is located outside the adsorption part. The adsorption support part is attached to the surface of the workpiece to support the working end of the adsorption part. The base (3) is driven to slide back and forth relative to the base (1) in the floating direction of the floating block (4) by the driving mechanism, thereby driving the adsorption part and the adsorption support part to move closer to or away from the workpiece, thereby realizing the floating adsorption of the workpiece by the adsorption part. The base (3) is provided with an installation plate (18). The floating block (4) is connected to the installation plate (18) through a floating connection structure. The floating connection structure includes at least two screws (19) and at least one guide pin (20). Each screw (19) and guide pin (20) extends along the floating direction of the floating block (4). The first ends of each screw (19) and guide pin (20) are fixedly connected to the installation plate (18). The floating block (4) has a guide hole for the guide pin (20) to slide through. The floating block (4) has a floating hole for the screw (19) to slide through. An elastic component (21) is fitted in the middle section of the screw (19). The two ends of the elastic component (21) are elastically pressed against the installation plate (18) and the floating block (4) respectively. The end of the screw (19) is provided with a limiting structure to limit the outer limit position of the floating block (4). The adsorption support is a contour support block (5). The adsorption part includes a suction rod (6) and a suction cup (7) connected together. A main connecting block (8) is fixedly installed on the floating block (4). The contour support block (5) is directly installed on the main connecting block (8). The suction rod (6) is installed on the main connecting block (8) through the suction cup connecting block (9). When in use, adjust the adsorption part and the adsorption support part to reach the final adsorption position. At this time, part of the contour support block (5) supports and adheres to the side of the vehicle body (30). The suction cup (7) sucks in air and adsorbs the rear door (29) to the target position. At this time, the surface of the rear door (29) is in contact with the contour support block (5), that is, the rear door (29) is adsorbed to be flush with the vehicle body (30).

2. The floating suction-leveling mechanism for installing a car door as described in claim 1, characterized in that: [the mechanism is described in the original text]. The side of the floating block (4) that is close to the mounting plate (18) is the inner side. The inner side of the mounting plate (18) has a first receiving hole (22) for the head end of the elastic component (21) to be inserted. The inner side of the floating block (4) has a second receiving hole (23) for the end of the elastic component (21) to be inserted. The two ends of the elastic component (21) are elastically pressed against the end step surface of the first receiving hole (22) and the end step surface of the second receiving hole (23), respectively.

3. The floating suction-leveling mechanism for installing a car door as described in claim 1, characterized in that: The limiting structure at the end of the screw (19) is a limiting nut (24) that is threadedly engaged with the screw (19), and the limiting nut (24) and the outer side of the floating block (4) are resisted and limited.

4. The floating suction-leveling mechanism for installing a car door as described in claim 2, characterized in that: The screw (19) is threadedly connected to the threaded hole on the mounting plate (18), and a locking nut (25) is threadedly connected to the head end of the screw (19), with the locking nut (25) pressing against the outside of the mounting plate (18).

5. A floating suction-leveling mechanism for installing a car door as described in claim 1, characterized in that: The guide pin (20) has a threaded hole on its end face. The limiting bolt (26) is screwed into the threaded hole at the end of the guide pin (20) from the outside of the mounting plate (18). The guide pin (20) has a limiting protrusion ring (27) at the part located inside the mounting plate (18). The heads of the limiting protrusion ring (27) and the limiting bolt (26) respectively abut against the inner and outer sides of the mounting plate (18) for limiting.

6. The floating suction-leveling mechanism for installing a car door as described in claim 1, characterized in that: The guide hole of the floating block (4) is provided with a bushing (28), and the guide pin (20) slides in conjunction with the inner hole of the bushing (28).

7. A floating suction-type leveling mechanism for installing a car door as described in claim 1, characterized in that: The driving mechanism is a first module (10). The base (3) of the floating suction mechanism (2) is installed on the slider of the first module (10). The base (1) is also provided with a second module (12). The second module (12) is installed on the base (1). The first module (10) is installed on the slider of the second module (12) through the adapter plate (13). The first module (10) drives the floating suction mechanism (2) to slide back and forth along the floating direction of the floating block (4). The second module (12) drives the first module (10) and the floating suction mechanism (2) on it to slide back and forth in a direction perpendicular to the floating direction of the floating block (4).

8. A floating suction-leveling mechanism for installing a car door as described in claim 7, characterized in that: The section of the adapter plate (13) extending out of the slider of the second module (12) is a cantilever section. The bottom of the cantilever section of the adapter plate (13) is supported by an auxiliary support structure. The auxiliary support structure includes a sliding support rail (15) and a support slider (16). The support rail (15) is installed on the base (1) and extends in a direction perpendicular to the floating direction of the floating block (4). The bottom of the cantilever section of the adapter plate (13) is fixed with a support slider mounting seat (17). The top of the support slider (16) is fixedly connected to the support slider mounting seat (17).

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