CN219768046U - Clamping and fixing device for automobile fuel tank cap - Google Patents

Abstract

A clamping and fixing device for an automobile fuel tank cap comprises a shell; the touch rod assembly comprises a plurality of touch rods which are scattered from the center to the periphery; the clamping assembly is also connected with a plurality of second air pipes used for exhausting air, and the clamping assembly can limit the axial movement of the feeler lever after exhausting air. The telescopic trolley rod structure array is compact and reasonable in structure and convenient to operate, the telescopic trolley rod structure array can realize the self-adaptive matching of the diversity of the end covers of the oiling holes of different automobile types and brands, the step of adjusting the positions and the postures of the clamping jaws by means of visual control is omitted, meanwhile, the trolley rod assembly can be limited in an air suction mode, meanwhile, the connecting effect on the oiling cover can be improved through the sucker, and the telescopic trolley rod structure array is high in adaptability, rapid and simple to operate and light in weight.

Description

Clamping and fixing device for automobile fuel tank cap

Technical Field

The utility model relates to the technical field of oiling robots, in particular to a clamping and fixing device for an automobile fuel tank cover.

Background

Along with the increase of the automobile conservation amount in China, the related oiling service demands of the automobiles are also developed towards the direction of accuracy and convenience. Traditional manual oiling mode needs to cultivate professional technicians of certain ability in advance, and different staff may have different fuelling habits and skills, leads to the inconsistency of the fuelling amount, and may influence user experience and satisfaction. Meanwhile, the operation of flammable liquid is involved in manual oiling, and a certain safety risk exists. Incorrect operation or improper safety measures may lead to the occurrence of fires, leaks or other accidents.

Therefore, the manipulator is used for oiling to replace manual work in the market, but the oiling hole end covers of different automobile types and brands are various, and the operation of the oiling robot is difficult. The vision system is required to recognize the shape of the end cover and control the operation of the clamping jaw besides recognizing the position of the oil filling hole. The shape diversity of the end cover limits the matching performance of the clamping jaw of the conventional industrial robot and limits the capability of the oiling robot to adapt to different automobile types and brands. The manipulator adopting the technologies of automatic identification, accurate positioning, simulation operation and the like to solve the problems has the problems of high production cost, expensive maintenance cost and poor popularity.

For this purpose, we propose a clamping and fixing device for the fuel tank cap of a motor vehicle.

Disclosure of Invention

The inventor aims at the defects in the prior art, and provides the clamping and fixing device for the automobile fuel tank cap, so that the self-adaptive matching of the diversity of the fuel tank cap of different automobile types and brands can be realized, and the clamping and fixing effects can be realized.

The technical scheme adopted by the utility model is as follows:

an automotive fuel tank cap clamping and fixing device, comprising: the feeler lever assembly comprises a plurality of feeler levers which are scattered from the center to the periphery, the feeler levers are hollow, one end of each feeler lever is connected with a sucker, and the other end of each feeler lever is connected with a first air pipe for providing pumping air for the sucker and used for controlling whether the sucker is connected with a contact surface or not; the shell is movably sleeved at one end of the feeler lever assembly, which is far away from the sucker, and an extension spring which provides outward thrust for the feeler lever is arranged in the shell; the clamping assembly is arranged in the shell, the structure of the clamping assembly comprises an upper end plate and a lower end plate, a first movable hole which is convenient for the trolley rod to move is formed in the side wall of the end plate, the two end plates are supported to form an integral frame structure through a plurality of longitudinal frameworks, a film layer is arranged between every two adjacent longitudinal frameworks, vent holes are formed in the film layer, foam particles are arranged in a space surrounded by the film layers, a plurality of second air pipes which are used for exhausting air to the film layer are further connected to one end plate, and whether the trolley rod moves axially or not can be controlled after exhausting air through the second air pipes.

It is further characterized by:

the shell is formed by connecting an end cover and a limiting shell, a fixed section and a cavity section are arranged in the limiting shell, a plurality of second movable holes convenient for inserting the feeler lever are formed in the fixed section, and the extension spring is arranged in the second movable holes.

The contact rod is of a polygonal structure, the contact surface with a contact object is improved, a plurality of circular bayonets are sleeved on one section of side wall of the contact rod penetrating through the end cover, the circular bayonets are matched with the end cover to limit the maximum extending distance, and meanwhile the limiting effect is achieved.

The number of the suckers is smaller than or equal to the number of the feeler levers, the suckers are distributed on the feeler lever assembly in a dispersed mode, and meanwhile the diameter of each sucker is smaller than or equal to the diameter of each feeler lever.

At least one row of horizontal film layers perpendicular to the longitudinal framework are arranged in the clamping assembly, so that a plurality of longitudinal partitions are realized.

The second air pipe is arranged in an air pipe inserting hole formed in the end plate, a plurality of air holes are formed in the side wall of the second air pipe extending to the air pipe inserting hole, and the first movable hole and the air Guan Chajie hole are surrounded by the longitudinal framework and the film layer.

The first air pipe and the second air pipe pass through the avoidance holes on the limiting shell and are respectively connected to the same pipe barrel, at least one central air pipe for providing air passage flow is arranged on the pipe barrel, the central air pipe is connected with the air pump for providing air pressure, and the first air pipe and the central air pipe are made of flexible materials.

The limiting shell is connected with the connecting frame which is in butt joint with the pipe barrel, the hook-shaped guide rail structure is arranged between the bottom of the pipe barrel and the connecting frame, and the buffer springs are arranged between the pipe barrel and the connecting frame, so that the pipe barrel has an automatic degree of axial movement, and meanwhile, the buffer effect can be achieved.

The beneficial effects of the utility model are as follows:

the telescopic trolley rod structure array is compact and reasonable in structure and convenient to operate, the telescopic trolley rod structure array can realize the self-adaptive matching of the diversity of the end covers of the oiling holes of different automobile types and brands, the step of adjusting the positions and the postures of the clamping jaws by means of visual control is omitted, meanwhile, the trolley rod assembly can be limited in an air suction mode, meanwhile, the connecting effect on the oiling cover can be improved through the sucker, and the telescopic trolley rod structure array is high in adaptability, rapid and simple to operate and light in weight.

Meanwhile, the utility model has the following advantages:

(1) Through using the feeler lever subassembly to replace traditional mechanical clamping jaw, can realize the cladding to the contact thing (in this embodiment, car filler cap) outline is waited to various shapes, application scope is wide moreover, only need to the position removal of filler cap, by feeler lever subassembly automatic matching shape, need not conventional clamping jaw and need according to the angle modulation that the stem direction goes on, the feeler lever improves through the polygon shape simultaneously and wait the area of contact thing, improves and snatchs the effect. Moreover, the contact effect with the side wall of the rotating handle of the oiling cover can be improved and the rotating acting force can be improved through the cooperation of the contact rod assembly and the object to be contacted.

(2) Simultaneously, the object to be contacted is adsorbed and fixed in all directions through the sucker, so that falling off is prevented.

(3) The utility model aims to achieve the effect of replacing a complex visual algorithm by designing a self-adaptive mechanical structure, and can realize clamping and rotation of the fueling cover with different shapes, different specifications and different angles only by a simple control flow.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a cross-sectional view of section A-A of fig. 2.

Fig. 4 is a schematic structural view of a feeler lever according to the present utility model.

Fig. 5 is a cross-sectional view of section B-B of fig. 2.

Fig. 6 is a schematic view of the portion C in fig. 5.

Fig. 7 is a schematic view of the connection structure of the contact rod assembly, the clamping assembly and the pipe barrel in the utility model.

Fig. 8 is a schematic structural view of a limiting housing in the present utility model.

FIG. 9 is a schematic view of the connection structure of the pipe barrel and the connecting frame of the utility model.

Fig. 10 is a schematic view of the structure of the clamping assembly of the present utility model.

FIG. 11 is a schematic cross-sectional view of a clamping assembly of the present utility model.

Wherein:

100. a feeler lever assembly; 200. an end cap; 300. a limit housing; 400. a tube; 500. a connecting frame;

600. a first air tube; 700. a central air tube; 800. a second air pipe; 900. a clamping assembly;

101. a feeler lever; 102. a suction cup; 103. a circular bayonet;

301. a fixed section; 302. a second movable hole; 303. a tension spring;

401. a hook-shaped guide rail structure; 402. a buffer spring;

901. a first movable hole; 902. an air pipe insertion hole; 903. a longitudinal skeleton; 904. a thin film layer; 905. foam particles; 906. end plates.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

As shown in fig. 1-11, the present embodiment discloses a clamping and fixing device for an automobile fuel tank cap, which mainly comprises the following structures: the trolley assembly 100, the housing, the barrel 400, the connector 500, and the clamp assembly 900;

the shell is formed by connecting an end cover 200 and a limit shell 300;

as shown in fig. 8, a fixed section 301 and a hollow section are disposed in the limit housing 300, a plurality of second movable holes 302 for facilitating insertion of the feeler lever 101 are formed in the fixed section 301, and an extension spring 303 corresponding to the feeler lever 101 is disposed in the second movable holes 302, wherein the extension spring 303 can enable the feeler lever 101 to be in an extended state all the time.

As shown in fig. 1 to 3, the end cap 200 and the limit housing 300 are fixedly connected together by a connection structure; the feeler lever assembly 100 extends into the end cover 200 and the limit housing 300 and realizes axial telescopic movement;

as shown in fig. 1-3, in this embodiment, the feeler lever assembly 100 includes a plurality of feeler levers 101 that are scattered from the center to the periphery, the feeler levers 101 have a polygonal structure to increase the contact surface with the contact object, so as to increase the friction force, the distribution shape of the feeler lever assembly 100 is generally circular, so that the feeler lever assembly 100 is convenient to fit the shape of the oil tank port, or can be in other shapes, and the feeler lever assembly 100 is mounted at the end of the actuator.

In this embodiment, as shown in fig. 3, a clamping assembly 900 is disposed in the cavity section, the clamping assembly 900 is located between the fixed section 301 and the end cover 200, and a plurality of first movable holes 901 for facilitating insertion of the feeler lever 101 are disposed on the clamping assembly 900;

as shown in fig. 3, the feeler lever 101 sequentially passes through the end cap 200, the clamping assembly 900 and extends into a second movable hole 302 provided in the limit housing 300;

a section of the side wall of the contact rod 101 penetrating through the end cover 200 is sleeved with a plurality of circular bayonets 103, and the circular bayonets 103 are matched with the end cover 200 to limit the maximum extension distance;

one end of the feeler lever 101 close to an object to be contacted is connected with a sucker 102, the diameter of the sucker 102 is smaller than or equal to that of the feeler lever 101, the feeler lever 101 is of an internal hollow structure, a gas flow channel is provided for sucking gas of the sucker 102, meanwhile, the other end of the feeler lever 101 is connected with a first gas pipe 600 for sucking gas, and when the sucker 102 is inflated by the first gas pipe 600, the sucker 102 is expanded and opened to lose the adsorption effect; when the first air pipe 600 is used for exhausting air, the sucking disc 102 is contracted inwards, and the sucking disc has an adsorption effect on a plane. The sucking disc 102 is connected and loosened to the object to be contacted by controlling the air inflation and air suction of the sucking disc 102;

in another embodiment, the number of the sucking discs 102 is smaller than or equal to the number of the feeler levers 101, and the sucking discs 102 are distributed on the feeler lever assembly 100 in a dispersed manner, so that the cost is reduced, and the sucking of the object to be contacted can be realized.

In this embodiment, as shown in fig. 3, 5-6, and 10-11, the clamping assembly 900 is capable of positioning the axial movement of the feeler lever 101, and the specific structure of the clamping assembly 900 includes: the upper and lower end plates 906, the first movable hole 901 is provided on the two end plates 906, and the two end plates 906 are supported by a plurality of longitudinal skeletons 903 to form an integral frame structure;

meanwhile, a film layer 904 is arranged between two adjacent longitudinal frameworks 903, the film layer 904 is made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, and the first movable hole 901 is surrounded by the longitudinal frameworks 903 and the film layer 904; the film layer 904 is provided with vent holes, foam particles 905 are arranged in the space surrounded by the film layers 904, the foam particles 905 are light in weight and can move along with air flow, and the foam particles 905 are made of polyurethane, polystyrene, polyvinyl chloride, polyethylene or phenolic foam;

meanwhile, a plurality of air pipe inserting holes 902 are formed in the end plate 906 on one side, and the air pipe inserting holes 902 are also surrounded by a longitudinal framework 903 and a film layer 904; a second air pipe 800 is inserted into the air pipe inserting hole 902, and a plurality of air holes are formed in the side wall of the second air pipe 800 extending into the air pipe inserting hole 902; in the case of the second air tube 800, it can drive the foam particles 905 in the film layer 904 to approach or disperse;

that is, when the second air pipe 800 is air-pumped, negative pressure is generated in the air pipe inserting hole 902, at this time, the foam particles 905 are close to the second air pipe 800 and can drive the film layer 904 to deform to squeeze the feeler lever 101, so that the limit of axial movement is realized.

When the second air tube 800 is deflated, the foam particles 905 lose pressure and thus do not squeeze the feeler lever 101, losing the axial limiting effect on the feeler lever 101.

In another embodiment, to enhance the connection effect to the feeler lever 101; be provided with the horizontal thin film layer of multirow and vertical skeleton 903 in clamping assembly 900 to realize a plurality of vertical subregions, let foam granule 905 can evenly distributed in clamping assembly 900 longitudinal direction, thereby can improve foam granule 905 and feeler lever 101's area of contact when second trachea 800 is taken out, improve axial spacing effect then.

The first air pipe 600 and the second air pipe 800 pass through the avoiding holes on the limiting shell 300 and are respectively connected to the same pipe barrel 400, and the central air pipe 700 is connected with an air pump; and at least one central air pipe 700 for providing an air path flow is provided on the tube 400; the tube 400 is used for dividing the air pressure variable received into the central air pipe 700 and respectively transmitting the air pressure variable to the first air pipe 600 and the second air pipe 800, thereby realizing different functions.

In this embodiment, a central air pipe 700 is used for air evacuation; because the air pressure required by the sucker 102 is small, when the central air pipe 700 is continuously pumping, the second air pipe 800 can obtain enough air pressure, so that the limit of the feeler lever 101 is realized;

in another embodiment, to improve the limiting effect on the feeler lever 101, the air can be supplied to the first air tube 600 and the second air tube 800 separately, so as to meet the air pressure requirements of different air tubes.

As shown in fig. 9, in this embodiment, the tube 400 and the connecting frame 500 are connected to each other, specifically, the limiting housing 300 is connected with the connecting frame 500 abutting against the tube 400, a hook-shaped guide rail structure 401 is disposed between the bottom of the tube 400 and the connecting frame 500, and a plurality of buffer springs 402 are disposed between the tube 400 and the connecting frame 500, so that the tube 400 has an automatic degree of axial movement, and meanwhile, a buffer effect can be achieved.

The first air pipe 600 and the central air pipe 700 are made of flexible materials, so that a certain degree of stretching can be realized, and the displacement and the angular deflection of the connecting structure can be conveniently matched.

(1) Through using feeler lever assembly 100 to replace traditional mechanical clamping jaw, can realize the cladding to the contact thing (in this embodiment, car filler cap) outline of waiting of various shapes, application scope is wide moreover, only need to the position removal of filler cap, by feeler lever assembly 100 automatic matching shape, need not conventional clamping jaw and need according to the angle modulation that the stem direction goes on, feeler lever 101 improves the area of contact with waiting the contact thing through the polygon shape simultaneously, improves and snatchs the effect. And through the cooperation of feeler lever assembly 100 and waiting to contact the thing, can improve the contact effect with the filler cap stem lateral wall, improve the rotation effort.

(2) And simultaneously, the sucker 102 is used for absorbing and fixing the object to be contacted in all directions, so that falling off is prevented.

(3) The utility model aims to achieve the effect of replacing a complex visual algorithm by designing a self-adaptive mechanical structure, and can realize clamping and rotation of the fueling cover with different shapes, different specifications and different angles only by a simple control flow.

When the self-adaptive end effector is used, and the feeler lever assembly 100 is pressed in contact with the fuel cap, the feeler lever assembly 100 can adaptively stretch and retract according to the contact force so as to tightly fit the outer contour of the fuel cap. When the oil cover surface is completely covered, the axial position of the feeler lever 101 is locked by pumping air from the middle clamping assembly 900 through the air pressure change of the central air pipe 700, so that the oil covers with different shapes, specifications and angles are clamped. Meanwhile, the sucker 102 at the tail end of the feeler lever 101 contracts inwards to generate an adsorption force to a plane, so that the oil cover is closely attached to the surface of the feeler lever 101, and the clamping and fixing operation of the oil cover is realized.

The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.

Claims (8)

1. An automotive fuel tank cap clamping and fixing device, comprising:

the feeler lever assembly (100) comprises a plurality of feeler levers (101) which are scattered from the center to the periphery, wherein the feeler levers (101) are hollow, one end of each feeler lever (101) is connected with a sucker (102), and the other end of each feeler lever (101) is connected with a first air pipe (600) for providing air pumping for the sucker (102) and used for controlling whether the sucker (102) is connected with a contact surface or not;

the shell is movably sleeved at one end of the feeler lever assembly (100) far away from the sucker (102), and an extension spring (303) for providing outward thrust for the feeler lever (101) is arranged in the shell;

the clamping assembly (900) is arranged in the shell, the structure of the clamping assembly comprises an upper end plate (906) and a lower end plate (906), a first movable hole (901) which is convenient for the trolley (101) to move is formed in the side wall of the end plate (906), the two end plates (906) are supported through a plurality of longitudinal frameworks (903) to form an integral frame structure, a thin film layer (904) is arranged between every two adjacent longitudinal frameworks (903), ventilation holes are formed in the thin film layer (904), foam particles (905) are arranged in a space surrounded by the thin film layers (904), a plurality of second air pipes (800) which are used for exhausting air to the thin film layers (904) are further connected to one end plate (906), and whether the trolley (101) axially moves is limited or not can be controlled after the second air pipes (800) are exhausted.

2. The automotive fuel tank cap clamping and fixing device as claimed in claim 1, wherein: the shell is formed by connecting an end cover (200) and a limiting shell (300), a fixed section (301) and a cavity section are arranged in the limiting shell (300), a plurality of second movable holes (302) which are convenient for inserting the feeler lever (101) are formed in the fixed section (301), and an extension spring (303) is arranged in the second movable holes (302).

3. A clamping and fixing device for a fuel tank cap of an automobile as claimed in claim 2, wherein: the contact rod (101) is of a polygonal structure, the contact surface with a contact object is improved, a plurality of circular bayonets (103) are sleeved on one section of side wall of the contact rod (101) penetrating through the end cover (200), and the circular bayonets (103) are matched with the end cover (200) to limit the maximum extending distance, and meanwhile limit effects are achieved.

4. A clamping and fixing device for a fuel tank cap of an automobile as claimed in claim 2, wherein: the number of the suckers (102) is smaller than or equal to the number of the feeler levers (101), the suckers (102) are distributed on the feeler lever assembly (100) in a dispersed mode, and meanwhile the diameter of each sucker (102) is smaller than or equal to the diameter of each feeler lever (101).

5. The automotive fuel tank cap clamping and fixing device as claimed in claim 1, wherein: at least one row of horizontal film layers perpendicular to the longitudinal skeleton (903) is arranged in the clamping assembly (900), so that a plurality of longitudinal partitions are realized.

6. The automotive fuel tank cap clamping and fixing device as claimed in claim 5, wherein: the second air pipe (800) is arranged in an air pipe inserting hole (902) formed in the end plate (906), a plurality of air holes are formed in the side wall of the second air pipe (800) extending into the air pipe inserting hole (902), and the first movable hole (901) and the air pipe inserting hole (902) are surrounded by the longitudinal framework (903) and the film layer (904).

7. The automotive fuel tank cap clamping and fixing device as set forth in claim 6, wherein: the first air pipe (600) and the second air pipe (800) are respectively connected to the same pipe barrel (400) after penetrating through the avoidance holes in the limiting shell (300), at least one central air pipe (700) for providing air passage flow is arranged on the pipe barrel (400), the central air pipe (700) is connected with an air pump for providing air pressure, and the first air pipe (600) and the central air pipe (700) are made of flexible materials.

8. The automotive fuel tank cap clamping fixture of claim 7, wherein: be connected with on spacing casing (300) with link (500) of barrel (400) butt joint, be provided with between the bottom of barrel (400) and link (500) and collude form guide rail structure (401) to set up a plurality of buffer springs (402) between barrel (400) and link (500), can make barrel (400) have an axial movement's degree of automation, can also play the cushioning effect simultaneously.