CN215356635U - Arc welding robot with welding seam tracking mechanism for welding vehicle body - Google Patents

Abstract

The utility model relates to the technical field of welding seam tracking, in particular to an arc welding robot with a welding seam tracking mechanism for welding a vehicle body. The welding head device comprises a base, wherein a horizontally arranged rail is arranged at the upper end of the base, a lifting column assembly which can slide along the rail and is vertically arranged is arranged on the rail, the lifting column assembly comprises a lifting column, a welding head mounting seat which can move up and down along the lifting column is arranged on the lifting column, and a welding head facing the base is arranged on the welding head mounting seat; the base is provided with a first T-shaped groove with the length direction parallel to the length direction of the track, a first sliding plate sliding in the first T-shaped groove is arranged in the first T-shaped groove, a supporting rod is arranged at the upper end of the first sliding plate, and two ends of the supporting rod are hinged to the first sliding plate and the lifting column respectively. The utility model provides an arc welding robot for welding a vehicle body with a seam tracking mechanism. The welding quality function of the automobile body can be guaranteed, the problem that manual welding has great contingency is solved, and the effect of improving the welding quality of the automobile body is achieved.

Description

Arc welding robot with welding seam tracking mechanism for welding vehicle body

Technical Field

The utility model relates to the technical field of welding seam tracking, in particular to an arc welding robot with a welding seam tracking mechanism for welding a vehicle body.

Background

With the development of science and technology, the manual welding mode is gradually eliminated in the automobile body welding, the welding quality can be ensured only by depending on the experience of operators due to the fact that the manual welding operation has great contingency, and the welding quality is difficult to ensure if spot welding is carried out manually. If the welding is changed into robot welding, not only can a plurality of robots be adopted to weld simultaneously, the time is shortened, but also the quality of each welding point can be ensured.

SUMMERY OF THE UTILITY MODEL

Aiming at the defect that manual welding has greater contingency in the prior art, the utility model provides an arc welding robot with a weld joint tracking mechanism for welding a vehicle body. The welding quality function of the automobile body can be guaranteed, the problem that manual welding has great contingency is solved, and the effect of improving the welding quality of the automobile body is achieved.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

the arc welding robot comprises a base, wherein a horizontally arranged rail is arranged at the upper end of the base, a lifting column assembly which can slide along the rail and is vertically arranged is arranged on the rail, the lifting column assembly comprises a lifting column, a welding head mounting seat which can move up and down along the lifting column is arranged on the lifting column, and a welding head facing the base is arranged on the welding head mounting seat; the base is provided with a first sliding groove parallel to the length direction of the track, a first sliding plate sliding in the first sliding groove is arranged in the first sliding groove, a supporting rod is arranged at the upper end of the first sliding plate, and two ends of the supporting rod are hinged to the first sliding plate and the lifting column respectively.

Through the arrangement of the base, the track, the lifting column assembly, the welding head mounting seat, the welding head, the first T-shaped groove, the first sliding plate and the support rod, the lifting column assembly can move on the track, the welding head mounting seat can move up and down on the lifting column assembly, so that the welding head on the welding head mounting seat can move and weld along with a welding seam, manual welding is not needed, the quality after welding is guaranteed, and meanwhile, manual work is replaced by a machine, so that the welding efficiency of a vehicle body and the working efficiency of workers are improved; because the part that the lifting column subassembly was stretched out to the bonding tool mount pad is more, so the lifting column subassembly breaks away from the track easily when the welding to lead to the machine to damage, so support the lifting column subassembly through the bracing piece, thereby prevented that the lifting column subassembly from breaking away from the track, the promotion of preferred arc welding robot structure's stability.

As preferred, the lift post subassembly is including being U type and opening towards the track, and sliding connection is at orbital gyro wheel mount pad, be equipped with between two inside walls of gyro wheel mount pad and can be on the track rolling gyro wheel on the surface, be equipped with first backup pad on the gyro wheel mount pad lateral wall, be equipped with the first motor of drive roller pivoted in the first backup pad, gyro wheel mount pad upper end is equipped with two bar boards of vertical setting, be equipped with the screw thread post between the two bar boards, the lift post comprises two bar boards and screw thread post jointly, two bar boards are kept away from gyro wheel mount pad one end and are equipped with the second backup pad, second backup pad upper end is equipped with drive screw thread post pivoted second motor.

According to the utility model, through the arrangement of the roller mounting seat, the roller, the first supporting plate, the first motor, the strip-shaped plate, the threaded column, the second supporting plate and the second motor, the first motor drives the roller to rotate, so that the lifting column assembly is driven to move on the rail, the second motor drives the threaded column to rotate, so that the welding head mounting seat is driven to move up and down, the welding head on the welding head mounting seat is convenient to weld with the seam, and the quality of a welded automobile body is ensured.

Preferably, one end of the welding head mounting seat is provided with a threaded through hole and a rectangular through hole, and the threaded column and the strip-shaped plate respectively penetrate through the threaded through hole and the rectangular through hole; the welding head mounting seat is provided with a groove far away from one end of the threaded column, a sealing plate is arranged at the position of the opening of the groove, one end of the sealing plate is hinged with a rotating plate, an electric welding machine is arranged on the welding head mounting seat, a welding wire on the electric welding machine is connected with the rotating plate, the welding head is arranged on the welding wire and penetrates through the rotating plate, and an electric push rod for pushing the rotating plate to rotate around the hinged position between the welding head and the sealing plate is arranged in the groove.

Through the arrangement of the threaded through hole, the rectangular through hole, the groove, the sealing plate, the rotating plate and the electric push rod, when the welding head mounting seat moves on the threaded column, the rectangular through hole is sleeved on the strip-shaped plate, so that the stability of the welding head mounting seat during moving is better improved; the electric push rod can push the rotating plate to adjust the position of the welding head, so that the welding head is convenient to adjust, and the welding quality is guaranteed.

Preferably, a second T-shaped groove parallel to the length direction of the track is formed in the base, a second sliding plate identical to the first sliding plate in structure is arranged in the second T-shaped groove, a connecting rod is arranged on the second sliding plate, one end of the connecting rod is welded to the second sliding plate, and the other end of the connecting rod is welded to the upper end portion of the strip-shaped plate.

Through the arrangement of the second T-shaped groove, the second sliding plate and the connecting rod, the connecting rod pulls the strip-shaped plate, so that the lifting column assembly is prevented from being separated from the rail when moving on the rail, and the stability of the lifting column assembly during moving is better improved.

Preferably, both sides end of first slide and second slide all is equipped with the pulley mounting groove, is equipped with a plurality of pulleys in the pulley mounting groove.

Through the arrangement of the pulley mounting groove and the pulley, the first sliding plate and the second sliding plate can conveniently slide in the first T-shaped groove and the second T-shaped groove.

Preferably, a balance wheel is arranged between the two inner side walls of the roller mounting seat, third T-shaped grooves matched with the balance wheel are respectively arranged on the two sides of the track along the length direction, and the balance wheel is clamped into the third T-shaped grooves and can slide in the third T-shaped grooves.

Through the arrangement of the balance wheel and the third T-shaped groove, when the lifting column assembly moves on the rail, the balance wheel is buckled in the third T-shaped grooves on the two sides of the rail, so that the lifting column assembly is stable when moving, and the lifting column assembly is prevented from being separated from the rail when moving; meanwhile, the gravity borne by the mounting seat is shared by the roller and the balance wheel, so that the roller is prevented from being crushed.

Drawings

Fig. 1 is a schematic view of the entire weld tracking mechanism in embodiment 1.

Fig. 2 is a schematic view of a roller mount in embodiment 1.

Fig. 3 is a schematic view of a threaded post, a strip and a roller mount in example 1.

Fig. 4 is a schematic view of a horn mount, a rotating plate, a threaded through-hole, and a rectangular through-hole in example 1.

Fig. 5 is a schematic view of the electric putter in embodiment 1.

Fig. 6 is a schematic view of the first sliding plate and the pulley in embodiment 1.

Fig. 7 is a schematic view of a track in embodiment 1.

The names of the parts indicated by the numerical references in the drawings are as follows:

110. a base; 120. a track; 130. a roller mounting seat; 140. a welding head mounting base; 150. a strip plate; 160. a first T-shaped groove; 170. a support bar; 180. a connecting rod; 190. a second T-shaped groove; 191. a second slide plate; 210. a first support plate; 220. a first motor; 230. a roller; 240. a balance wheel; 310. a second support plate; 320. a second motor; 330. a threaded post; 410. a rectangular through hole; 420. a threaded through hole; 430. an electric welding machine; 440. welding wires; 450. a welding head; 460. a sealing plate; 470. a rotating plate; 510. a groove; 520. an electric push rod; 610. a first slide plate; 620. a pulley mounting groove; 630. a pulley. 710. And a third T-shaped groove.

Detailed Description

For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the utility model and not limiting.

Example 1

As shown in fig. 1 to 7, the embodiment provides an arc welding robot with a seam tracking mechanism for welding a vehicle body, which includes a base 110, a rail 120 horizontally disposed is disposed at an upper end of the base 110, a lifting column assembly vertically disposed and capable of sliding along the rail 120 is disposed on the rail 120, the lifting column assembly includes a lifting column, the lifting column assembly includes a U-shaped roller mount 130 having an opening facing the rail 120 and being slidably connected to the rail 120, a roller 230 capable of rolling on an upper surface of the rail 120 is disposed between two inner side walls of the roller mount 130, a balance wheel 240 is disposed between two inner side walls of the roller mount 130, third T-shaped grooves 710 matched with the balance wheel 240 are respectively disposed on two sides of the rail 120 along a length direction, and the balance wheel 240 is clamped into the third T-shaped grooves 710 and capable of sliding in the third T-shaped grooves 710; the outer side wall of the roller mounting seat 130 is provided with a first supporting plate 210, the first supporting plate 210 is provided with a first motor 220 for driving the roller 230 to rotate, the upper end of the roller mounting seat 130 is provided with two vertically arranged strip-shaped plates 150, a threaded column 330 is arranged between the two strip-shaped plates 150, the lifting column is formed by the two strip-shaped plates 150 and the threaded column 330, one end of each strip-shaped plate 150, far away from the roller mounting seat 130, is provided with a second supporting plate 310, and the upper end of the second supporting plate 310 is provided with a second motor 320 for driving the threaded column 330 to rotate; the lifting column is provided with a welding head mounting base 140 which can move up and down along the lifting column, and the welding head mounting base 140 is provided with a welding head 450 facing the base 110; one end of the welding head mounting seat 140 is provided with a threaded through hole 420 and a rectangular through hole 410, and the threaded column 330 and the strip-shaped plate 150 respectively penetrate through the threaded through hole 420 and the rectangular through hole 410; a groove 510 is formed in one end, away from the threaded column 330, of the welding head mounting seat 140, a sealing plate 460 is arranged at the opening of the groove 510, one end of the sealing plate 460 is hinged to a rotating plate 470, an electric welding machine 430 is arranged on the welding head mounting seat 140, an electric welding wire 440 on the electric welding machine 430 is connected with the rotating plate 470, the welding head 450 is arranged on the electric welding wire 440 and penetrates through the rotating plate 470, and an electric push rod 520 for pushing the rotating plate 470 to rotate around the hinged position between the electric welding wire and the sealing plate 460 is arranged in the groove 510; the base 110 is provided with a first T-shaped groove 160 with the length direction parallel to the length direction of the rail 120, a first sliding plate 610 sliding in the first T-shaped groove 160 is arranged in the first T-shaped groove 160, the upper end of the first sliding plate 610 is provided with a supporting rod 170, and two ends of the supporting rod 170 are respectively hinged with the first sliding plate 610 and the lifting column; a second T-shaped groove 190 with the length direction parallel to the length direction of the track 120 is formed in the base 110, a second sliding plate 191 with the same structure as the first sliding plate 610 is arranged in the second T-shaped groove 190, a connecting rod 180 is arranged on the second sliding plate 191, one end of the connecting rod 180 is welded on the second sliding plate 191, and the other end of the connecting rod 180 is welded at the upper end part of the strip-shaped plate 150; both sides end of first slide 610 and second slide 191 all is equipped with pulley mounting groove (620), is equipped with a plurality of pulleys 630 in the pulley mounting groove 620.

Through the arrangement of the base 110, the rail 120, the lifting column assembly, the welding head mounting base 140, the welding head 450, the first T-shaped groove 160, the first sliding plate 610 and the supporting rod 170 in the embodiment, the lifting column assembly can move on the rail 120, the welding head mounting base 140 can move up and down on the lifting column assembly, so that the welding head 450 on the welding head mounting base 140 can move and weld along with a weld joint, manual welding is not needed, the quality after welding is ensured, and meanwhile, manual work is replaced by a machine, so that the welding efficiency of a vehicle body and the working efficiency of workers are improved; because the part that welding head mount 140 stretches out the lift column subassembly is more, so the lift column subassembly breaks away from the track easily when the welding to lead to the machine to damage, so support the lift column subassembly through bracing piece 170, thereby prevented the lift column subassembly from breaking away from the track, the better stability that has promoted arc welding robot structure.

Through the setting of the roller mounting base 130, the roller 230, the first supporting plate 210, the first motor 220, the strip-shaped plate 150, the threaded column 330, the second supporting plate 310 and the second motor 320 in the embodiment, so that the first motor 220 drives the roller 230 to rotate, thereby driving the lifting column assembly to move on the track 120, the second motor 320 drives the threaded column 330 to rotate, thereby driving the welding head mounting base 140 to move up and down, thereby facilitating the welding head 450 on the welding head mounting base 140 to weld with the seam, and ensuring the quality of the welded automobile body.

Through the arrangement of the threaded through hole 420, the rectangular through hole 410, the groove 510, the sealing plate 460, the connecting plate 470 and the electric push rod 520 in the embodiment, when the welding head mounting base 140 moves on the threaded column 330, the rectangular through hole 410 is sleeved on the strip-shaped plate 150, so that the stability of the welding head mounting base 140 during movement is improved better; the electric push rod 520 can push the rotating plate 470 to adjust the position of the welding head 450, thereby facilitating the adjustment of the welding head 450 and ensuring the welding quality.

Through the arrangement of the second T-shaped groove 190, the second sliding plate 191 and the connecting rod 180 in the embodiment, the connecting rod 180 pulls the strip-shaped plate 150, so that the lifting column assembly is prevented from being separated from the rail 120 when moving on the rail 120, and the stability of the lifting column assembly during moving is improved.

The arrangement of the pulley mounting groove 620 and the pulley 630 in this embodiment facilitates the sliding of the first sliding plate 610 and the second sliding plate 191 in the first T-shaped groove 160 and the second T-shaped groove 190.

Through the arrangement of the balance wheel 240 and the third T-shaped groove 710 in this embodiment, when the lifting column assembly moves on the rail 120, the balance wheel 240 is buckled in the third T-shaped grooves 710 on both sides of the rail 120, so that the lifting column assembly is stable when moving, and the lifting column assembly is prevented from being separated from the rail 120 when moving; meanwhile, the gravity borne by the roller mount 130 is shared by the roller 230 and the balance wheel 240, thereby preventing the roller 230 from being crushed.

When the arc welding robot with the weld seam tracking mechanism for welding the vehicle body is used specifically, a worker inputs a control algorithm through the numerical control terminal, and then the numerical control terminal controls the first motor 220, the second motor 320, the electric push rod and the weld seam machine 430 to work, firstly, the second motor 320 drives the threaded column 330 to rotate, thereby driving the welding head mounting base 140 to move, after the height adjustment of the welding head mounting base 140 is completed, then the electric push rod 520 pushes the rotating plate 470 to make the welding head 450 on the rotating plate 470 align with the welding seam to be welded on the vehicle body, finally the roller 230 is driven to rotate by the first motor 220 to make the lifting column assembly drive the welding head mounting base 140 to move, so that the welding head 450 of the welding head mounting base 140 follows the seam welding of the vehicle body to be welded, meanwhile, the welding path of the welding head 450 can be controlled through different algorithms, so that the welding of different welding seams on the vehicle body is facilitated.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims (6)

1. Arc welding robot with welding seam tracking mechanism for welding car body, its characterized in that: the welding device comprises a base (110), a rail (120) which is horizontally arranged is arranged at the upper end of the base (110), a lifting column assembly which can slide along the rail (120) and is vertically arranged is arranged on the rail (120), the lifting column assembly comprises a lifting column, a welding head mounting seat (140) which can move up and down along the lifting column is arranged on the lifting column, and a welding head (450) facing the base (110) is arranged on the welding head mounting seat (140); be equipped with length direction and track (120) length direction parallel's first T type groove (160) on base (110), be equipped with in first T type groove (160) first slide (610) that slides in first T type groove (160), first slide (610) upper end is equipped with bracing piece (170), and bracing piece (170) both ends are articulated with first slide (610) and lift post respectively.

2. The arc welding robot for welding a vehicle body having a bead tracking mechanism according to claim 1, characterized in that: lifting column subassembly is including being U type and opening towards track (120), and sliding connection is gyro wheel mount pad (130) on track (120), be equipped with between two inside walls of gyro wheel mount pad (130) and can be on track (120) upper surface rolling gyro wheel (230), be equipped with first backup pad (210) on gyro wheel mount pad (130) lateral wall, be equipped with drive roller (230) pivoted first motor (220) on first backup pad (210), gyro wheel mount pad (130) upper end is equipped with two bar boards (150) of vertical setting, be equipped with screw thread post (330) between two bar boards (150), the lift post comprises two bar boards (150) and screw thread post (330) jointly, two bar boards (150) are kept away from gyro wheel mount pad (130) one end and are equipped with second backup pad (310), second backup pad (310) upper end is equipped with drive screw thread post (330) pivoted second motor (320).

3. The arc welding robot for welding a vehicle body having a bead tracking mechanism according to claim 1, characterized in that: one end of the welding head mounting seat (140) is provided with a threaded through hole (420) and a rectangular through hole (410), and the threaded column (330) and the strip-shaped plate (150) respectively penetrate through the threaded through hole (420) and the rectangular through hole (410); one end, far away from the threaded column (330), of the welding head mounting seat (140) is provided with a groove (510), a sealing plate (460) is arranged at the opening of the groove (510), one end of the sealing plate (460) is hinged to a rotating plate (470), an electric welding machine (430) is arranged on the welding head mounting seat (140), an electric welding wire (440) on the electric welding machine (430) is connected with the rotating plate (470), the welding head (450) is arranged on the electric welding wire (440) and penetrates through the rotating plate (470), and an electric push rod (520) which pushes the rotating plate (470) to rotate around the hinged position between the electric welding head and the sealing plate (460) is arranged in the groove (510).

4. The arc welding robot for welding a vehicle body having a bead tracking mechanism according to claim 2, characterized in that: be equipped with length direction and track (120) length direction parallel second T type groove (190) on base (110), be equipped with in second T type groove (190) second slide (191) the same with first slide (610) structure, be equipped with connecting rod (180) on second slide (191), connecting rod (180) one end welding is on second slide (191), and the other end welding is in strip shaped plate (150) upper end.

5. The arc welding robot for welding a vehicle body having a bead tracking mechanism according to claim 4, characterized in that: both sides end of first slide (610) and second slide (191) all is equipped with pulley mounting groove (620), is equipped with a plurality of pulleys (630) in pulley mounting groove (620).

6. The arc welding robot for welding a vehicle body having a bead tracking mechanism according to claim 1, characterized in that: a balance wheel (240) is arranged between two inner side walls of the roller mounting seat (130), third T-shaped grooves (710) matched with the balance wheel (240) are respectively arranged on two sides of the track (120) along the length direction, and the balance wheel (240) is clamped into the third T-shaped grooves (710) and can slide in the third T-shaped grooves (710).

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