CN112355556A

CN112355556A - Double-station displacement mechanism for welding automobile exhaust pipe

Info

Publication number: CN112355556A
Application number: CN202011183485.4A
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 a double-station displacement mechanism for welding an automobile exhaust pipe, which relates to the field of automation equipment and comprises a double-station fixing tool, a rotating arm, a suction component and a driving component, wherein the double-station fixing tool comprises a hollow tool shell and a plugging mechanism capable of opening corresponding suction holes according to different limit positions of the tool shell, the invention optimizes the traditional fixing tool part, designs a double-station structure, can complete feeding and discharging of two products and corresponding welding treatment at one time, and further improves the welding efficiency compared with the traditional single station, the invention also improves the internal structure of the fixing tool, designs a hollow structure, can timely suck and clean welding smoke generated in the welding process in a short-distance manner under the matching of the plugging mechanism and the suction component, and furthest reduces the risk of welding smoke discharge, and to increase the cooling rate at the product weld.

Description

Double-station displacement mechanism for welding automobile exhaust pipe

Technical Field

The invention relates to the field of automation equipment, in particular to a double-station displacement mechanism for welding an automobile exhaust pipe.

Background

Along with the popularization of automation equipment, the welding of vehicle vent-pipe at present adopts independent weldment work station to go on mostly, contains the shifting mechanism that a rotor arm and a fixed frock that is used for fixed product constitute 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. The existing displacement mechanism is only provided with a mounting position of a product, so the welding efficiency is still insufficient, and a large amount of welding smoke can be generated in the welding process.

Disclosure of Invention

The invention aims to provide a double-station displacement mechanism for welding an automobile exhaust pipe, which aims to overcome the defects in the prior art.

A double-station displacement mechanism for welding an automobile exhaust pipe 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 mode 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, products are mounted at the upper end and the lower end of the double-station fixing tool, 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, a vent hole is formed in one end of the tool shell, the suction assembly is mounted at two ends of one rotating arm and corresponds to the vent hole to suck welding fume, sliding seats are arranged on the upper end face and the lower end face of the tool shell, sliding grooves are formed in the sliding seats, and clamps, the clamp body can move along the sliding groove after being unlocked so as to realize the position adjustment.

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.

The invention has the advantages that:

() 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 front view of fig. 1.

Fig. 3 is a schematic structural diagram of the double-station fixing tool in the invention.

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

Fig. 5 is a sectional view taken along the direction D-D in fig. 4.

Fig. 6 is a partially enlarged view of a portion a in fig. 5.

Fig. 7 is a schematic structural diagram of the plugging mechanism of the present invention.

Fig. 8 is a partial enlarged view of fig. 7 at B.

Fig. 9 is a sectional view of a rotor portion in the present invention.

Fig. 10 is a partial enlarged view at C in fig. 9.

FIG. 11 is a schematic view of a substrate according to the present invention.

Wherein: 1-double-station fixed tool, 11-tool shell, 12-blocking mechanism, 121-base plate, 122-plug, 123-reset rod, 124-reset spring I, 125-lever mechanism, 1251-driving rod, 1252-driven rod, 1253-connecting plate, 1254-hinged shaft, 1255-strip hole I, 1256-strip hole II, 126-suction hole, 127-guide rod, 128-guide hole I, 129-guide hole II, 1210-connecting part, 1211-cross rod, 1212-blocking plate, 1213-blocking cover, 1214-exhaust hole, 2-rotating arm, 21-side arm, 3-suction component, 31-fan component, 32-connecting pipe, 33-limiting ring, 34-reset spring II, 4-sliding rod, 41-connecting lug, 5-driving component, 51-servo motor and 52-screw rod.

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 11, a double-station displacement mechanism for welding an automobile exhaust pipe comprises a double-station fixing tool 1, a rotating arm 2, a suction component 3 and a driving component 5, wherein two ends of the double-station fixing tool 1 are slidably connected to a sliding mechanism on the rotating arm 2 and can move back and forth along the length direction of the rotating arm 2 under the action of the driving component 5, side arms 21 are arranged at the upper end and the lower end of the rotating arm 2, the upper end and the lower end of the double-station fixing tool 1 are used for installing products, the double-station fixing tool specifically comprises a hollow tool shell 11 and a plugging mechanism 12 capable of opening corresponding suction holes 126 according to different limit positions of the tool shell 11, a vent hole 1214 is arranged at one end of the tool shell 11, the suction component 3 is arranged at two ends of one rotating arm 2 and corresponds to the vent hole 1214 to suck welding smoke, the upper end face and the lower end face of the tool shell 11 are provided with sliding seats 6, sliding grooves are formed in the sliding seats 6, clamp bodies 7 used for clamping products are installed in the sliding grooves through bolts, and the clamp bodies 7 can move along the sliding grooves after being unlocked so as to achieve position adjustment.

In the embodiment of the present invention, a plurality of equidistantly arranged air suction holes 126 are provided at the upper and lower ends of the tool housing 11, the plugging mechanism 12 includes a base plate 121, a plug 122, a reset rod 123, a first reset spring 124 and a lever mechanism 125, the upper and lower ends of the base plate 121 are provided with a plurality of equidistantly arranged plugs 122, one plug 122 corresponds to one air suction hole 126, the two ends of the base plate 121 are connected to a connecting portion 1210 at one side of the reset rod 123 through the lever mechanism 125, the first reset spring 124 is installed between the connecting portion 1210 and the upper and lower inner walls of the tool housing 11, the first reset rod 123 can be restored to the middle position through the reset spring, the upper and lower ends of the reset rod 123 penetrate through and are in sliding fit with the first guide holes 128 on the tool housing 11, the two ends of the upper and lower end faces of the base plate 121 are further provided with guide rods 127, the tool housing, the moving direction of the reset rod 123 is opposite to that of the substrate 121, the other side of the reset rod 123 is connected with a cross bar 1211, the tail end of the cross bar 1211 is connected to the blocking plate 1212, a sealing cover 1213 is arranged at the end of the tool housing 11, the sealing cover 1213 is provided with the exhaust hole 1214, and a sliding rail for the blocking plate 1212 to slide is arranged on the inner side of the sealing cover 1213.

In the embodiment of the present invention, the lever mechanism 125 includes an active rod 1251, a passive rod 1252, a connecting plate 1253 and a hinge shaft 1254, the active rod 1251 is slidably connected to the first strip-shaped hole 1255 of the connecting portion 1210, the active rod 1251, the passive rod 1252 and the hinge shaft 1254 are integrally connected through the connecting plate 1253, the hinge shaft 1254 is rotatably connected to a side wall of the tool housing 11, and the passive rod 1252 is slidably connected to the second strip-shaped hole 1256 of the end portion of the base plate 121.

In the embodiment of the invention, the suction assembly 3 comprises a fan assembly 31, a connecting pipe 32 and a second return spring 34, wherein mounting holes are formed in the upper end and the lower end of one rotating arm 2, the fan assembly 31 is mounted in the mounting holes and located on the outer side of the rotating arm 2, the outer side of the fan assembly 31 is connected to welding fume purification equipment through a hose, a limiting ring 33 is arranged on the inner side of the mounting hole, the connecting pipe 32 is connected in the mounting holes in a sliding manner, the second return spring 34 is further mounted between the connecting pipe and the fan assembly 31, a round chamfer is formed in the end portion of the tool housing 11 close to one side of the exhaust hole 1214, and the suction pipe can be conveniently connected and aligned with the end portion of the tool.

In the embodiment of the present invention, the sliding mechanism includes two sliding rods 4, and the upper and lower ends of the sliding rods 4 are fixed on the side arms 21.

In the embodiment of the invention, the driving assembly 5 includes a driving motor and a lead screw 52, the driving motor is mounted on one of the side arms 21, an output end of the driving motor is connected to the lead screw 52, two ends of the lead screw 52 are rotatably connected to the side arms 21, and the lead screw 52 passes through the double-station fixing tool 1 and is in threaded connection with a lead screw nut thereon. The lead screw 52 is driven to rotate by the driving motor, and the tool housing 11 is driven to switch to the corresponding station along the rotating arm 2.

In the embodiment of the invention, two ends of the double-station fixing tool 1 are provided with connecting lugs 41, and the connecting lugs 41 are provided with sliding holes matched with the sliding rods 4.

The working process of the invention is as follows:

in an initial state, the double-station fixed tool 1 is positioned at the lower end of the rotating arm 2, the connecting pipe 32 is butted with the exhaust hole 1214 at the end part of the tool shell 11, a worker installs two corresponding products on the fixture body 7 on the tool shell 11, then, the equipment is started, the rotating arm 2 starts to rotate to a specified position, the welding gun of the welding robot also moves to a corresponding position, and the product starts to rotate and executes welding operation;

in the welding process, the fan assembly 31 located at one side of the tool housing 11 is started, at this time, a part of the reset rod 123 located below the tool housing 11 is jacked into the tool housing 11 by the side arm 21 at the lower end of the rotating arm 2, the substrate 121 is driven downwards to move for a certain distance under the action of the lever mechanism 125, the suction hole 126 located at the upper end surface of the tool housing 11 is opened, and the suction hole 126 located at the lower end surface is closed, so that welding fume can be sucked into corresponding welding fume purification equipment through the fan assembly 31 to be cleaned;

after the first product is welded, the servo motor 51 drives the screw rod 52 to rotate, the screw rod 52 drives the tool housing 11 to move upwards to the other end of the rotating arm 2, similarly, the air suction hole 126 on the lower end surface of the tool housing 11 is opened, the air suction hole 126 on the upper end surface is closed, meanwhile, the air suction pipe is extruded by the end part of the tool housing 11 and is in butt joint with the end part, the air discharge hole 1214 is communicated with the air suction pipe, the rotating arm 2 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 2 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, the rotating arm 2 rotates for a certain angle generally less than 360 degrees along one direction and then rotates for a certain angle reversely less than 360 degrees, so that the corresponding wire harness and the corresponding hose are prevented from being wound and interfered.

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. The utility model provides a duplex position shift mechanism for automobile exhaust pipe welding which characterized in that, includes fixed frock in duplex position (1), rotor arm (2), suction subassembly (3) and drive assembly (5), the both ends sliding connection of the fixed frock in duplex position (1) can be on the glide machanism on rotor arm (2) and along the length direction round trip movement of rotor arm (2) under drive assembly (5)'s effect, the upper and lower both ends of rotor arm (2) are equipped with side arm (21), the upper and lower both ends of the fixed frock in duplex position (1) are used for installing the product, specifically include a hollow frock casing (11) and one can be according to the extreme position difference that frock casing (11) were located and open shutoff mechanism (12) that correspond suction hole (126), wherein one end of frock casing (11) is equipped with exhaust hole (1214), suction subassembly (3) are installed in the both ends of one of them rotor arm (2) and are corresponding with exhaust hole (1214) in order to correspond The suction of cigarette is welded in the realization, the upper and lower terminal surface of frock casing (11) is equipped with seat (6) that slides, is equipped with the groove of sliding on seat (6), and the inslot that slides installs through the bolt and is used for pressing from both sides the anchor clamps body (7) of pressing from both sides tight product, and the anchor clamps body (7) can remove the adjustment in order to realize the position along the groove of sliding after the unblock.

2. The double-station shifting mechanism for welding the automobile exhaust pipe according to claim 1, characterized in that: the upper end and the lower end of the tool shell (11) are provided with a plurality of air suction holes (126) which are arranged at equal intervals, the plugging mechanism (12) comprises a base plate (121), a plug (122), a reset rod (123), a first reset spring (124) and a lever mechanism (125), the upper end and the lower end of the base plate (121) are provided with a plurality of plugs (122) which are arranged at equal intervals, one plug (122) corresponds to one air suction hole (126), two ends of the base plate (121) are connected with a connecting part (1210) on one side of the reset rod (123) through the lever mechanism (125), the first reset spring (124) is installed between the connecting part (1210) and the upper inner wall and the lower inner wall of the tool shell (11), the first reset rod (123) can be restored to the middle position through the reset spring, and the upper end and the lower end of the reset rod (123) pass through a first guide hole (128), both ends of terminal surface still are equipped with guide bar (127) about base plate (121), be equipped with on frock casing (11) with guide bar (127) complex guide hole two (129), reset lever (123) and base plate (121) moving direction is opposite, the opposite side of reset lever (123) is connected with horizontal pole (1211), the end of horizontal pole (1211) is connected to closure plate (1212), the tip of frock casing (11) is equipped with closing cap (1213), be equipped with on closing cap (1213) exhaust hole (1214), the inboard of closing cap (1213) is equipped with the gliding slide rail of confession closure plate (1212).

3. The double-station shifting mechanism for welding the automobile exhaust pipe according to claim 2 is characterized in that: lever mechanism (125) include drive rod (1251), passive pole (1252), connecting plate (1253) and articulated shaft (1254), in drive rod (1251) sliding connection bar hole (1255) on connecting portion (1210), drive rod (1251), passive pole (1252) and articulated shaft (1254) between connect as an organic wholely through connecting plate (1253), articulated shaft (1254) rotate to be connected on the lateral wall of frock casing (11), passive pole (1252) sliding connection is in bar hole two (1256) of base plate (121) tip.

4. The double-station shifting mechanism for welding the automobile exhaust pipe according to claim 1, characterized in that: suction subassembly (3) include fan assembly (31), connecting pipe (32) and two (34) of reset spring, and the upper and lower both ends of one of them rotor arm (2) all are equipped with the mounting hole, and fan assembly (31) are installed in the mounting hole and are located the outside of rotor arm (2), and the outside of fan assembly (31) is passed through hose connection to and is welded cigarette clarification plant, and the inboard of mounting hole is equipped with a spacing ring (33), connecting pipe (32) sliding connection in the mounting hole and with fan assembly (31) between still install reset spring two (34), the tip that is close to frock casing (11) of exhaust hole (1214) one side is equipped with the chamfer.

5. The double-station shifting mechanism for welding the automobile exhaust pipe according to claim 1, characterized in that: the sliding mechanism comprises two sliding rods (4), and the upper end and the lower end of each sliding rod (4) are fixed on the side arms (21).

6. The double-station shifting mechanism for welding the automobile exhaust pipe according to claim 1, characterized in that: the driving assembly (5) comprises a driving motor and a screw rod (52), the driving motor is installed on one side arm (21) and the output end of the driving motor is connected to the screw rod (52), the two ends of the screw rod (52) are rotatably connected to the side arm (21), and the screw rod (52) penetrates through the double-station fixing tool (1) and is in threaded connection with a screw rod nut on the double-station fixing tool.

7. The double-station shifting mechanism for welding the automobile exhaust pipe according to claim 5, characterized in that: two ends of the double-station fixing tool (1) are provided with connecting lugs (41), and sliding holes matched with the sliding rods (4) are formed in the connecting lugs (41).