CN112355557A

CN112355557A - Automobile exhaust pipe welding workstation

Info

Publication number: CN112355557A
Application number: CN202011183536.3A
Authority: CN
Inventors: 李航
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-02-12

Abstract

The invention discloses an automobile exhaust pipe welding workstation, which relates to the field of automation equipment and comprises a double-station displacement mechanism, a supporting mechanism, a welding robot and a welding shed.

Description

Automobile exhaust pipe welding workstation

Technical Field

The invention relates to the field of automation equipment, in particular to an automobile exhaust pipe welding workstation.

Background

Along with the popularization of automation equipment, the welding of present vehicle vent-pipe adopts independent weldment work station to go on mostly, contains a rotor arm and a fixed frock that is used for fixed product among the weldment work station, realizes the rotation of fixed frock and product through the rotation of drive rotor arm to the cooperation welding robot carries out the welding operation of multi-angle. This kind of mode is because only set up the mounted position of a product, so welding efficiency still shows inadequately, and can produce a large amount of welding smokes among the welding process, and traditional mode is with the help of the induction port at welding roof portion inhales it to corresponding clarification plant in clear up, because the product welding process is in the rotary motion state all the time, and is far away from the induction port of welding roof, is difficult to realize welding the quick, effective suction of cigarette, leads to partly to weld the cigarette and arranges to the environment in outward, causes the pollution.

Disclosure of Invention

The invention aims to provide an automobile exhaust pipe welding workstation to solve the defects caused in the prior art.

An automotive exhaust pipe welding workstation, comprising:

the double-station displacement mechanism is used for fixing a product and realizing the rotation of the product, and specifically comprises a double-station fixing tool, a rotating arm, a suction assembly and a driving assembly, wherein two ends of the double-station fixing tool are connected to a sliding mechanism on the rotating arm in a sliding manner and can move back and forth along the length direction of the rotating arm under the action of the driving assembly, side arms are arranged at the upper end and the lower end of the rotating arm, the upper end and the lower end of the double-station fixing tool are used for installing the product, the double-station fixing tool specifically comprises a hollow tool shell and a plugging mechanism capable of opening corresponding suction holes according to different limit positions of the tool shell, one end of the tool shell is provided with a vent hole, and the suction assembly is arranged at two ends of one rotating arm and corresponds to;

the support mechanism comprises two support bodies, the rotating arm is rotationally connected to the support bodies, one of the support bodies is also provided with a power motor, and the output end of the power motor is connected to the rotating shaft of the rotating arm and can drive the rotating arm to rotate;

the welding robots are used for being matched with the double-station displacement mechanism to weld the product, and at least two welding robots are arranged on the workbench;

the welding canopy is formed by a plurality of sheet metal component welding, can locate duplex position displacement mechanism and welding robot cover in it.

Furthermore, a plurality of air suction holes are arranged at the upper end and the lower end of the tool shell in an equidistance mode, the plugging mechanism comprises a base plate, a plug, a reset rod, a first reset spring and a lever mechanism, the upper end and the lower end of the base plate are respectively provided with a plurality of the plugs arranged at the equidistance mode, one plug corresponds to one air suction hole, the two ends of the base plate are connected with the connecting part at one side of the reset rod through the lever mechanism, the first reset spring is arranged between the connecting part and the upper inner wall and the lower inner wall of the tool shell, the first reset rod can be restored to the middle position through the first reset spring, the upper end and the lower end of the reset rod penetrate through the guide holes in the tool shell and are in sliding fit with the guide holes, the two ends of the upper end face and the lower end face of the base plate are also provided with guide rods, the end part of the tool shell is provided with a sealing cover, the sealing cover is provided with exhaust holes, and the inner side of the sealing cover is provided with a sliding rail for the blocking plate to slide.

Further, lever mechanism includes active bar, passive pole, connecting plate and articulated shaft, and in the bar hole one of active bar sliding connection on connecting portion, as an organic whole through the connecting plate connection between active bar, passive pole and the articulated shaft, the articulated shaft rotates and connects on the lateral wall of frock casing, in the bar hole two of passive pole sliding connection tip in the base plate tip.

Further, the suction assembly comprises a fan assembly, a connecting pipe and a second reset spring, mounting holes are formed in the upper end and the lower end of one rotating arm, the fan assembly is mounted in the mounting holes and located on the outer side of the rotating arm, the outer side of the fan assembly is connected to welding smoke purification equipment through a hose, a limiting ring is arranged on the inner side of the mounting hole, the connecting pipe is connected to the mounting holes in a sliding mode and is further mounted between the connecting pipe and the fan assembly, and a round chamfer is arranged at the end, close to the tooling shell on one side of the exhaust hole, of the second reset spring.

Furthermore, the sliding mechanism comprises two sliding rods, and the upper end and the lower end of each sliding rod are fixed on the side arms.

Further, the driving assembly comprises a driving motor and a lead screw, the driving motor is installed on one side arm, the output end of the driving motor is connected to the lead screw, the two ends of the lead screw are rotatably connected to the side arm, and the lead screw penetrates through the double-station fixing tool and is in threaded connection with a lead screw nut on the double-station fixing tool.

Furthermore, both ends of the double-station fixing tool are provided with connecting lugs, and sliding holes matched with the sliding rods are formed in the connecting lugs.

Furthermore, the opening part used for loading and unloading on the welding shed is also provided with a safety grating.

The invention has the advantages that:

(1) on the basis of the existing workstation, the traditional fixed tool part is optimized, a double-station structure is designed, feeding and discharging of two products and corresponding welding treatment can be completed at one time, and compared with the traditional single station, the welding efficiency is further improved;

(2) on the basis of double stations, the internal structure of the fixed tool is improved and designed into a hollow structure, welding fume generated in the welding process can be sucked and cleaned in a short distance in time under the matching of the plugging mechanism and the suction assembly, the risk of discharging the welding fume is reduced to the maximum extent, and meanwhile, as the air flow speed at the air suction hole is high and the welding point is close to the air suction hole, the heat at the welding point can be taken away quickly to accelerate the cooling speed;

(3) in the process of double-station switching, the butt joint of the corresponding suction components is sequentially completed, a complex connecting structure is not required to be arranged, and the equipment structure is simplified.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the present invention with the welding booth removed.

Fig. 3 is a schematic structural diagram of the double-station shifting mechanism in the invention.

Fig. 4 is a front view of fig. 3.

Fig. 5 is a schematic structural view of the double-station fixing tool in the invention.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a cross-sectional view taken along the direction D-D in fig. 6.

Fig. 8 is a partial enlarged view of a portion a in fig. 7.

Fig. 9 is a schematic structural diagram of the plugging mechanism of the present invention.

Fig. 10 is a partial enlarged view of fig. 9 at B.

Fig. 11 is a sectional view of a rotor portion in the present invention.

Fig. 12 is a partial enlarged view at C in fig. 11.

FIG. 13 is a schematic view of a substrate according to the present invention.

Wherein: 1-double-station displacement mechanism, 11-double-station fixing tool, 111-tool shell, 112-plugging mechanism, 1121-substrate, 1122-plug, 1123-reset rod, 1124-reset spring I, 1125-lever mechanism, 11251-active rod, 11252-passive rod, 11253-connecting plate, 11254-hinged shaft, 11255-strip hole I, 11256-strip hole II, 1126-suction hole, 1127-guide rod, 1128-guide hole I, 1129-guide hole II, 11210-connecting part, 11211-cross rod, 11212-plug plate, 11213-sealing cover, 11214-exhaust hole, 12-rotating arm, 121-side arm, 13-suction component, 131-fan component, 132-connecting pipe, 133-limiting ring and 134-reset spring II, 14-a slide bar, 141-a connecting lug, 15-a driving component, 151-a servo motor, 152-a lead screw, 2-a support body, 3-a power motor, 4-a welding robot, 5-a workbench, 6-a welding shed and 7-a safety grating.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 13, an automobile exhaust pipe welding workstation comprises a double-station displacement mechanism 1 for fixing a product and enabling the product to rotate, and specifically comprises a double-station fixing tool 11, a rotating arm 12, a suction assembly 13 and a driving assembly 15, wherein two ends of the double-station fixing tool 11 are slidably connected to a sliding mechanism on the rotating arm 12 and can move back and forth along the length direction of the rotating arm 12 under the action of the driving assembly 15, side arms 121 are arranged at the upper end and the lower end of the rotating arm 12, the upper end and the lower end of the double-station fixing tool 11 are used for installing the product, and specifically comprises a hollow tool shell 111 and a plugging mechanism 112 capable of opening corresponding suction holes 1126 according to the limit position of the tool shell 111, one end of the tool shell 111 is provided with an exhaust hole 11214, the suction assembly 13 is arranged at two ends of one of the rotating arm 12 and corresponds to the exhaust hole 11214 to achieve suction of welding smoke, the upper end and the lower end of the tool shell 111 are provided with corresponding clamp bodies for clamping a product, namely an automobile exhaust pipe, which are only shown in the figure simply and do not show the corresponding clamp bodies;

the supporting mechanism comprises two supporting bodies 2, the rotating arm 12 is rotatably connected to the supporting bodies 2, one of the supporting bodies 2 is also provided with a power motor 3, and the output end of the power motor 3 is connected to the rotating shaft of the rotating arm 12 and can drive the rotating arm 12 to rotate;

the welding robots 4 are used for being matched with the double-station displacement mechanism 1 to weld products, and at least two welding robots 4 are arranged on the workbench 5;

the welding shed 6 is formed by welding a plurality of sheet metal parts and can cover the double-station displacement mechanism 1 and the welding robot 4 in the welding shed.

In the embodiment of the invention, a plurality of equidistantly arranged air suction holes 1126 are arranged at the upper end and the lower end of the tool housing 111, the plugging mechanism 112 includes a substrate 1121, a plug 1122, a reset rod 1123, a first reset spring 1124 and a lever mechanism 1125, the upper end and the lower end of the substrate 1121 are both provided with a plurality of equidistantly arranged plugs 1122, one plug 1122 corresponds to one air suction hole 1126, the two ends of the substrate 1121 are connected with a connecting part 11210 at one side of the reset rod 1123 through the lever mechanism 1125, the first reset spring 1124 is installed between the connecting part 11210 and the upper and lower inner walls of the tool housing 111, the first reset rod 1123 can be restored to the middle position through the reset spring, the upper end and the lower end of the reset rod 1123 penetrate through the first guide holes 1128 on the tool housing 111 and are in sliding fit with the same, the two guide rods 1127 are further arranged at the two ends of the upper and lower end surfaces of the substrate, the moving direction of the reset rod 1123 is opposite to that of the substrate 1121, the other side of the reset rod 1123 is connected with a cross rod 11211, the tail end of the cross rod 11211 is connected to the blocking plate 11212, the end of the tooling housing 111 is provided with a sealing cover 11213, the sealing cover 11213 is provided with the exhaust hole 11214, and the inner side of the sealing cover 11213 is provided with a slide rail for the sliding of the blocking plate 11212.

In the embodiment of the present invention, the lever mechanism 1125 includes an active rod 11251, a passive rod 11252, a connecting plate 11253 and a hinge shaft 11254, the active rod 11251 is slidably connected to the inside of a first strip-shaped hole 11255 of the connecting portion 11210, the active rod 11251, the passive rod 11252 and the hinge shaft 11254 are integrally connected through the connecting plate 11253, the hinge shaft 11254 is rotatably connected to the sidewall of the tool housing 111, and the passive rod 11252 is slidably connected to the inside of a second strip-shaped hole 11256 at the end of the substrate 1121.

In the embodiment of the present invention, the suction assembly 13 includes a fan assembly 131, a connecting pipe 132 and a second return spring 134, wherein both the upper and lower ends of one of the rotating arms 12 are provided with a mounting hole, the fan assembly 131 is mounted in the mounting hole and located outside the rotating arm 12, the outside of the fan assembly 131 is connected to the welding fume purification device through a hose, the inside of the mounting hole is provided with a limiting ring 133, the connecting pipe 132 is slidably connected in the mounting hole and is also mounted with the second return spring 134 between the connecting pipe and the fan assembly 131, the end of the tooling housing 111 close to the side of the exhaust hole 11214 is provided with a round chamfer, and the design of the round chamfer can facilitate the connection and alignment of the air suction pipe and the end.

In the embodiment of the present invention, the sliding mechanism includes two sliding rods 14, and the upper and lower ends of the sliding rods 14 are fixed to the side arms 121.

In the embodiment of the present invention, the driving assembly 15 includes a driving motor and a lead screw 152, the driving motor is mounted on one of the side arms 121, and an output end of the driving motor is connected to the lead screw 152, two ends of the lead screw 152 are rotatably connected to the side arms 121, and the lead screw 152 passes through the double-station fixing tool 11 and is in threaded connection with a lead screw nut thereon. The lead screw 152 is driven to rotate by the driving motor, and the tool housing 111 is driven to switch to the corresponding station along the rotating arm 12.

In the embodiment of the present invention, two ends of the double-station fixing tool 11 are provided with connecting lugs 141, specifically, two ends of the tool housing 111 are provided with connecting lugs 141, and the connecting lugs 141 are provided with sliding holes matched with the sliding rod 14.

In the embodiment of the invention, a safety grating 7 is further arranged at an opening for feeding and discharging on the welding shed 6, and is used for detecting whether a person enters a welding area or not in the process of welding operation of the equipment, and if the person enters the welding area, the operation of the equipment is stopped through a corresponding controller so as to avoid safety accidents.

The working process of the invention is as follows:

in an initial state, the double-station fixed tool 11 is located at the lower end of the rotating arm 12, the connecting pipe 132 is in butt joint with the exhaust hole 11214 at the end part of the tool shell 111, a worker installs two corresponding products on the fixture body on the tool shell 111, then, the equipment is started, the rotating arm 12 starts to rotate to a specified position, the welding gun of the welding robot 4 also moves to a corresponding position, and the product starts to rotate and performs welding operation;

in the welding process, the fan assembly 131 positioned on one side of the tool housing 111 is started, at this time, a part of the reset rod 1123 positioned below the tool housing 111 is jacked into the tool housing 111 by the side arm 121 at the lower end of the rotating arm 12, the base plate 1121 is driven downwards for a certain distance under the action of the lever mechanism 1125, the air suction hole 1126 positioned on the upper end surface of the tool housing 111 is opened, and the air suction hole 1126 on the lower end surface is closed, so that welding fume can be sucked into corresponding welding fume purification equipment through the fan assembly 131 to be cleaned;

after the welding of the first product is completed, the servo motor 151 drives the screw 152 to rotate, the screw 152 drives the tool housing 111 to move upwards to the other end of the rotating arm 12, similarly, the air suction hole 1126 located on the lower end face of the tool housing 111 is opened, the air suction hole 1126 located on the upper end face of the tool housing is closed, meanwhile, the air suction pipe is extruded by the end portion of the tool housing 111 and is in butt joint with the end portion, the air discharge hole 11214 is communicated with the air suction pipe, the rotating arm 12 starts to rotate, and a corresponding welding program is executed. Thus, the welding treatment of the two products can be completed;

after the welding is finished, the rotating arm 12 rotates to a vertical state, blanking and feeding are carried out, and the continuous processing of products can be finished by reciprocating.

In the welding process of the invention, the rotating arm 12 rotates a certain angle, generally less than 360 degrees, along one direction and then rotates a certain angle, also less than 360 degrees, in the reverse direction, so as to avoid the winding and interference of corresponding wire harnesses and hoses.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. An automotive exhaust pipe welding workstation, comprising:

the double-station displacement mechanism (1) is used for fixing products and realizing rotation of the products and specifically comprises a double-station fixing tool (11), a rotating arm (12), a suction assembly (13) and a driving assembly (15), wherein two ends of the double-station fixing tool (11) are connected to a sliding mechanism on the rotating arm (12) in a sliding mode and can move back and forth along the length direction of the rotating arm (12) under the action of the driving assembly (15), side arms (121) are arranged at the upper end and the lower end of the rotating arm (12), the upper end and the lower end of the double-station fixing tool (11) are used for installing the products, the double-station displacement mechanism specifically comprises a hollow tool shell (111) and a plugging mechanism (112) capable of opening corresponding suction holes (1126) according to different limit positions where the tool shell (111) is located, an exhaust hole (11214) is arranged at one end of the tool shell (111), and the suction assembly (13) is installed at two ends of one rotating arm (12) and the suction of welding fume is realized;

the supporting mechanism comprises two supporting bodies (2), the rotating arm (12) is rotatably connected to the supporting bodies (2), one of the supporting bodies (2) is further provided with a power motor (3), and the output end of the power motor (3) is connected to the rotating shaft of the rotating arm (12) and can drive the rotating arm (12) to rotate;

the welding robots (4) are used for being matched with the double-station displacement mechanism (1) to weld products, and at least two welding robots (4) are arranged on the workbench (5);

welding canopy (6) is formed by a plurality of sheet metal component welding, can cover duplex position displacement mechanism (1) and welding robot (4) and establish in it.

2. The welding station for automobile exhaust pipes according to claim 1, characterized in that: the upper end and the lower end of the tool shell (111) are provided with a plurality of equidistantly arranged air suction holes (1126), the plugging mechanism (112) comprises a substrate (1121), a plug (1122), a reset rod (1123), a first reset spring (1124) and a lever mechanism (1125), the upper end and the lower end of the substrate (1121) are provided with a plurality of equidistantly arranged plugs (1122), one plug (1122) corresponds to one air suction hole (1126), two ends of the substrate (1121) are connected with a connecting part (11210) on one side of the reset rod (1123) through the lever mechanism (1125), the first reset spring (1124) is installed between the connecting part (11210) and the upper inner wall and the lower inner wall of the tool shell (111), the first reset rod (1123) can restore to the middle position through the reset spring, and the upper end and the lower end of the reset rod (1123) penetrate through a first guide hole (1128) in the tool shell (111) and are in sliding fit with the, two ends of the upper end face and the lower end face of the substrate (1121) are further provided with guide rods (1127), a tool housing (111) is provided with a second guide hole (1129) matched with the guide rods (1127), the moving direction of the reset rod (1123) is opposite to that of the substrate (1121), the other side of the reset rod (1123) is connected with a cross rod (11211), the tail end of the cross rod (11211) is connected to a blocking plate (11212), a sealing cover (11213) is arranged at the end part of the tool housing (111), the exhaust hole (11214) is formed in the sealing cover (11213), and the inner side of the sealing cover (11213) is provided with a slide rail for the blocking plate (11212) to.

3. The vehicle exhaust pipe welding station according to claim 2, wherein: the lever mechanism (1125) comprises an active rod (11251), a passive rod (11252), a connecting plate (11253) and a hinge shaft (11254), wherein the active rod (11251) is connected in a first strip-shaped hole (11255) in the connecting part (11210) in a sliding mode, the active rod (11251), the passive rod (11252) and the hinge shaft (11254) are connected into a whole through the connecting plate (11253), the hinge shaft (11254) is connected to the side wall of the tool housing (111) in a rotating mode, and the passive rod (11252) is connected in a second strip-shaped hole (11256) in the end part of the substrate (1121) in a sliding mode.

4. The welding station for automobile exhaust pipes according to claim 1, characterized in that: suction subassembly (13) include fan assembly (131), connecting pipe (132) and two (134) reset spring, and the upper and lower both ends of one of them rotor arm (12) all are equipped with the mounting hole, and fan assembly (131) are installed in the mounting hole and are located the outside of rotor arm (12), and the outside of fan assembly (131) is passed through the hose connection and is welded cigarette clarification plant, and the inboard of mounting hole is equipped with a spacing ring (133), connecting pipe (132) sliding connection in the mounting hole and with fan assembly (131) between still install two (134) reset spring, the tip that is close to frock casing (111) of exhaust hole (11214) one side is equipped with the chamfer.

5. The welding station for automobile exhaust pipes according to claim 1, characterized in that: the sliding mechanism comprises two sliding rods (14), and the upper end and the lower end of each sliding rod (14) are fixed on the side arms (121).

6. The welding station for automobile exhaust pipes according to claim 1, characterized in that: the driving assembly (15) comprises a driving motor and a lead screw (152), the driving motor is installed on one side arm (121) and the output end of the driving motor is connected to the lead screw (152), the two ends of the lead screw (152) are rotatably connected to the side arm (121), and the lead screw (152) penetrates through the double-station fixed tool (11) and is in threaded connection with a lead screw nut on the double-station fixed tool.

7. The welding station for automobile exhaust pipes according to claim 5, wherein: two ends of the double-station fixing tool (11) are provided with connecting lugs (141), and sliding holes matched with the sliding rods (14) are formed in the connecting lugs (141).

8. The automotive exhaust pipe welding workstation of any one of claims 1 to 7, wherein: and a safety grating (7) is arranged at an opening for feeding and discharging on the welding shed (6).