CN100593449C - Supporting leg longitudinal seam automatic welding machine - Google Patents

Abstract

The invention discloses an outrigger longitudinal seaming automatic welding machine, which comprises a frame. A top beam is arranged at the upper part of the frame, and a cross beam is arranged on oneside of the frame. An upper guide rail is arranged on the cross beam and a welding mechanism is arranged on the upper guide rail. A front positioning clamp device is arranged on the top beam. The frame is provided with a welding platform, which is provided with a liner device. The welding machine can solve the problems with prior outrigger welding technology. The feeding, positioning, welding anddischarging processes of the welding machine are automatically carried out, thereby greatly improving the production efficiency. During welding, the inner and external cavities of the outrigger are both fixed firmly by a positioning device, thus preventing deviations. A liner is arranged in the inner cavity of the outrigger, and used for unifying the sizes of outrigger cavities and smoothening the welding seams after welding, thereby greatly improving the manufacturing precision and product quality.

Description

Leg longitudinal seam automatic welding machine

technical field

The invention relates to a welding device, in particular to an automatic welding machine for longitudinal seams of outriggers.

Background technique

At present, the welding process of the outriggers is mostly manually operated, the steps are cumbersome, and the production efficiency is low. Some factories use automatic welding machines to replace manual operations. However, the existing automatic welding machines have poor welding effects and can only be used as an auxiliary However, the welding process still requires workers to operate, and the automatic and precise welding of the outrigger welding cannot be completely realized. Moreover, the sizes of the inner cavities of the outriggers welded by the automatic welding machine are different, and the workpiece is seriously deformed after welding, which not only affects the appearance, but also extremely Greatly reduces the manufacturing accuracy and product quality of the product.

Contents of the invention

The object of the present invention is to provide a leg longitudinal seam automatic welding machine, which can solve the problems existing in the existing leg welding technology. The feeding, positioning, welding and discharging processes of the present invention are all automated, which greatly improves production efficiency. During welding, the inner and outer cavities of the outriggers are firmly fixed by the positioning device, and there will be no deviation. The inner cavity of the outriggers is designed with a lining plate, which can make the inner cavity of the outriggers after welding uniform in size and smooth, greatly improving its performance. Manufacturing precision and product quality.

The object of the present invention is achieved through the following technical proposals: the automatic welding machine for the longitudinal seam of the legs includes a frame, a top beam is arranged on the top of the frame, a crossbeam is arranged on one side of the frame, an upper guide rail is arranged on the crossbeam, and welding is installed on the upper guide rail. Mechanism, the front positioning and pressing device is installed on the top beam, the welding platform is installed on the frame, and the inner lining device is installed on the welding platform.

In order to further realize the purpose of the present invention, the following technical solutions can also be adopted: the inner liner device is composed of a support plate, an inner liner cylinder, a first liner, a second liner and a connecting rod, and the bottom of the support plate is provided with a first One chute and the second chute, the liner cylinder is installed on the support plate, the piston rod of the liner cylinder is connected with the connecting rod, the lower part of the connecting rod is provided with the first pin and the second pin, and the lower part of the support plate is from top to bottom The first liner and the second liner are installed in sequence, the first liner is provided with the fourth chute and the second chute, the second liner is provided with the third chute and the first chute, the first pin passes through the second The chute and the first chute penetrate into the second chute, and the second pin passes through the first chute and the third chute into the fourth chute. The welding mechanism is composed of a moving plate, a sliding plate, a welding torch, a traverse cylinder, a drive motor and a gear connection. The moving plate is connected to the upper guide rail. The moving plate guide rail is set on the moving plate. One end of the piston rod of the traversing cylinder is connected with the moving plate, a welding torch is installed on the sliding plate, a driving motor is installed on the moving plate, a gear is installed on the output shaft of the driving motor, a rack is arranged on the beam, and the rack and the gear are combined. A compression cylinder is installed on the moving plate, the piston rod of the compression cylinder is connected with one end of the guide rod, a guide sleeve is installed on the outer periphery of the guide rod, and the guide sleeve is connected with the moving plate. A platform guide rail is arranged on the frame, one end of the platform guide rail extends out of the frame, the platform guide rail is movably connected with the welding platform, a platform power cylinder is installed on the frame, and the piston rod of the platform power cylinder is connected with the welding platform. Another crossbeam is arranged on the other side of the frame, another upper guide rail is arranged on the crossbeam, and a second set of welding mechanism is installed on the other upper guide rail. A rear positioning and pressing device is installed on the top beam, and the rear positioning and pressing device is located at the rear of the front positioning and pressing device. Positioning holes are provided at the rear of the frame, and positioning blocks are arranged at the rear of the welding platform, and the positioning blocks correspond to the positioning holes.

The positive effect of the present invention is that it has reasonable structural design, strong practicability, high production efficiency and good product quality, and can completely solve the problems of massive waste of human resources, low production efficiency and low product quality in current outrigger welding.

Description of drawings

Fig. 1 is a structural representation of the present invention; Fig. 2 is a left view structural representation of Fig. 1; Fig. 3 is a schematic diagram of a three-dimensional structure of the present invention; Fig. 4 is a schematic diagram of a three-dimensional structure of a frame of the present invention, and the welding platform among the figures is positioned at the frame The welding zone in; Fig. 5 is another three-dimensional structure schematic diagram of support of the present invention, and among the figure welding platform is positioned on the platform guide rail outside the frame; Fig. 6 is the partial enlarged structure schematic diagram of I of Fig. 5; Fig. 7 is the welding of the present invention The structural schematic diagram of the platform, the welding platform is equipped with a lining board device in the figure; Figure 8 is a schematic diagram of the three-dimensional structure of Figure 7; Figure 9 is a schematic diagram of the bottom structure of Figure 7; 11 is a schematic structural diagram of the inner lining device; FIG. 12 is a schematic diagram of the B-B sectional structure of FIG. 11; FIG. 13 is a schematic diagram of the bottom structure of FIG. 11; FIG. 14 is a schematic bottom view of the closed connection of the first lining board and the second lining board ; Figure 15 is a schematic bottom view of the first liner and the second liner in the open state; Figure 16 is a schematic view of the A-A section structure of Figure 15; Figure 17 is the inner liner device after removing the first liner and the second liner Structural schematic view from the bottom; FIG. 18 is a schematic structural view of the welding mechanism; FIG. 19 is a three-dimensional structural schematic view of the welding mechanism.

Labels in the figure: 1 Frame 2 Moving Plate 3 Driving Motor 4 Beam 5 Upper Guide Rail 6 Collecting Barrel 7 Rear Positioning and Compressing Device 8 Welding Platform 9 Lining Plate Device 10 Platform Power Cylinder 11 Transverse Cylinder 12 Front Positioning and Compressing Device 13 material control cylinder 14 feeding pipe 15 moving plate guide rail 16 slide plate 17 pressing cylinder 18 positioning block 19 guide sleeve 20 bearing 21 guide rod 22 welding torch 23 positioning hole 24 inner liner cylinder 25 rack 26 gear 27 feeding pipe 28 welding Workpiece 29 Sensor 30 Top Beam 31 Platform Guide Rail 32 Inner Guide Rail 33 Roller 34 First Liner 35 Second Liner 36 Support Plate 37 Connecting Rod 38 First Pin 39 Second Pin 40 First Chute 41 First Chute 42 No. Two chute 43 the 3rd chute 44 the 4th chute 45 the 2nd chute.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, the leg longitudinal seam automatic welding machine according to the present invention includes a frame 1, a top beam 30 is arranged on the top of the frame 1, and a crossbeam 4 is arranged on one side of the frame 1, and the crossbeam The upper guide rail 5 is set on the upper guide rail 5, the welding mechanism is installed on the upper guide rail 5, the front positioning and pressing device 12 is installed on the top beam 30, the welding platform 8 is installed on the frame 1, the inner liner device 9 is installed on the welding platform 8, and the front positioning pressing device 12 is installed. The tightening device 12 is located above the inner liner device 9 . The welding mechanism can be a welding torch, and the welding torch can move back and forth along the upper guide rail 5 to adjust the position of the welding torch 22 . During use, the welding workpiece 28 is placed on the welding platform 8, the inner liner device 9 is positioned in the welding workpiece 28, the front positioning and pressing device 12 is adjusted, and the front positioning and pressing device 12 is pressed down on the welding workpiece 28, so that The welding workpiece 28 and the welding platform 8 are fixed firmly; then, the welding mechanism is moved to weld the welding workpiece 28 .

As shown in Figures 9 to 16, the inner liner device 9 can be formed by connecting a support plate 36, an inner liner cylinder 24, a first liner 34, a second liner 35 and a connecting rod 37, and the bottom of the support plate 36 is provided with a first One chute 40 and the second chute 45, the inner liner cylinder 24 is installed on the support plate 36, the piston rod of the inner liner cylinder 24 is connected with the connecting rod 37, and the lower part of the connecting rod 37 is provided with the first pin 38 and the second pin 39, the lower part of the support plate 36 is installed with the first liner 34 and the second liner 35 sequentially from top to bottom, the first liner 34 is provided with the fourth chute 44 and the second chute 42, and the second liner 35 is provided with The third chute 43 and the first chute 41, the first pin 38 penetrates in the second chute 42 through the second chute 45 and the first chute 41, and the second pin 39 passes through the first chute 40 and the third chute. The chute 43 penetrates into the fourth chute 44; the fourth chute 44 and the second chute 42 are inclined at a certain angle relative to the axial direction of the support plate 36; The axial direction is inclined at a certain angle, the inclination directions of the fourth chute 44 and the second chute 42 are the same, the inclination directions of the third chute 43 and the first chute 41 are the same, and the inclination directions of the fourth chute 44 and the third chute 43 are the same. The direction of inclination is opposite. In order to spread the welding workpiece 28 to prevent serious deformation of the welding workpiece 28 after welding, thereby achieving the purpose of improving the welding quality, when the welding workpiece 28 is placed on the inner lining plate device 9, the inner lining plate cylinder 24 can be started, The liner cylinder 24 pushes the connecting rod 37 to move, the first pin 38 and the second pin 39 on the connecting rod 37 move along the second chute 45 and the first chute 40 respectively, and the first pin 38 and the second pin 39 move At the same time, the second liner 35 and the first liner 34 are opened outwards, thereby tightening the welding workpiece 28; when the first pin 38 and the second pin 39 move in the opposite direction, the second liner 35 and the first liner are A back panel 34 is closed. The principle that the movement of the first pin 38 and the second pin 39 makes the second lining plate 35 and the first lining plate 34 open or close is: as shown in FIG. 13 , the second lining plate 35 and the first lining plate 34 are in a closed state , at this time, the first pin 38 is located at the rear end of the first chute 41 and the second chute 42, the second pin 39 is located at the rear end of the fourth chute 44 and the third chute 43, and the second backing plate 35 and The distance between the first liner 34 is the smallest; after the first pin 38 and the second pin 39 move, as shown in Figure 14, the second liner 35 and the first liner 34 are in an open state, at this moment, the first pin 38 is located at the front end of the first chute 41 and the second chute 42, the second pin 39 is located at the front end of the fourth chute 44 and the third chute 43, and the distance between the second liner 35 and the first liner 34 is the largest .

As shown in Figure 18 and Figure 19, the welding mechanism is composed of a moving plate 2, a slide plate 16, a welding torch 22, a traverse cylinder 11, a drive motor 3 and a gear 26. The moving plate 2 is connected to the upper rail 5, and the moving plate 2 is provided Moving plate guide rail 15, slide plate 16 is installed on the moving plate guide rail 15, traverse cylinder 11 is installed on the slide plate 16, one end of the piston rod of traverse cylinder 11 is connected with the moving plate 2, welding torch 22 is installed on the slide plate 16, and the drive is installed on the moving plate 2 Motor 3, gear 26 is installed on the output shaft of driving motor 3, and rack 25 is set on crossbeam 4, and rack 25 and gear 26 mesh. During use, the driving motor 3 can drive the gear 26 to rotate, and the gear 26 cooperates with the rack 25 to make the welding mechanism move forward or backward along the direction of the rack 25. Move left and right along the moving plate guide rail 15 to adjust the lateral position of the welding torch 22 . In order to further ensure the stability of the welding mechanism moving back and forth, an inner guide rail 32 can be set inside the beam 4 , the inner guide rail 32 is parallel to the upper guide rail 5 , and the inner guide rail 32 is movably connected with the moving plate 2 .

As shown in Figures 18 and 19, in order to make the welding process more stable, a compression cylinder 17 can be installed on the moving plate 2, and the piston rod of the compression cylinder 17 is connected with one end of the guide rod 21, and the outer circumference of the guide rod 21 is equipped with a guide sleeve 19 , One end of the guide sleeve 19 is connected with the moving plate 2. When the compression cylinder 17 drives the guide rod 21 to stretch out, the free end of the guide rod 21 laterally compresses the welding workpiece 28, so that the positional relationship between the welding torch 22 and the longitudinal seam is fixed and the welding quality is higher. The guide sleeve 19 supports the guide rod 21, which can prevent the guide rod 21 from being bent and deformed when moving relative to the welding workpiece 28, and can further ensure the welding quality. As shown in Figure 18 and Figure 19, the blanking tube 14 is installed on the slide plate 16, the blanking tube 14 is positioned at the side of the welding torch 22, and the material control cylinder 13 is installed on the blanking tube 14, and the material control cylinder 13 can control the movement of the blanking tube 14. on or off. The material collection cylinder 6 is installed on the frame 1, the material collection cylinder 6 is connected with the feeding pipe 14 by the feed pipe 27, and the material in the material collection cylinder 6 can play an auxiliary role for welding. In order to reduce wear between the guide rod 21 and the welding workpiece 28, a bearing 20 can be installed at the free end of the guide rod 21.

As shown in Fig. 4, Fig. 5 and Fig. 6, a platform guide rail 31 can be set on the frame 1, and one end of the platform guide rail 31 stretches out of the frame 1, and the platform guide rail 31 is movably connected with the welding platform 8, so as to reduce the welding platform 8 Relative to the friction force that platform guide rail 31 moves, several rollers 33 can be set at the bottom of welding platform 8; Platform power cylinder 10 is installed on the frame 1, and the piston rod of platform power cylinder 10 is connected with welding platform 8. Before welding, the piston rod of the platform power cylinder 10 stretches out earlier to push the welding platform 8 to move to the platform guide rail 31 outside the frame 1, because the welding platform 8 is located outside the main body of the frame 1 at this time, and there are few obstacles , it is convenient for people to place the welding workpiece 28 on the welding platform 8 .

In order to improve the welding efficiency, two sets of welding mechanisms can be symmetrically installed on the frame 1. Left and right symmetry, one upper guide rail 5 is respectively arranged on the two beams 4, and one set of welding mechanism is respectively installed on the two upper guide rails 5, and the shapes and structures of the left and right two sets of welding mechanisms are completely symmetrical.

As shown in Fig. 1, Fig. 2 and Fig. 3, in order to make the welding workpiece 28 more firmly connected with the welding platform 8 during the welding process, the rear positioning and pressing device 7 can be installed on the top beam 30, and the rear positioning and pressing device 7 Located at the rear of the front positioning pressing device 12. During use, after the welding workpiece 28 is installed on the welding platform 8, the front positioning and pressing device 12 and the rear positioning and pressing device 7 can be used to apply downward pressure to the welding workpiece 28 respectively to achieve a fixing effect.

The rear portion of frame 1 can offer positioning hole 23, and the rear of welding platform 8 is provided with positioning block 18, and positioning block 18 is corresponding to positioning hole 23. When the welding platform 8 is loaded with the welding workpiece 28 and enters the welding area, the positioning block 18 is inserted into the positioning hole 23 to position the welding platform 8, thereby ensuring the accuracy of welding.

Sensor 29 is installed on the frame 1, and sensor 29 can make welding work realize automation.

In the specific welding process, the workpiece 28 to be welded is placed on the welding platform 8 for positioning, and the welding platform 8 enters the welding area of the frame 1 under the action of the platform power cylinder 10, and the positioning block 18 on the welding platform 8 will be positioned on the frame. The positioning hole 23 on 1, the inner lining board cylinder 24 acts, and the inner lining board device 9 is opened to a preset value, and the front positioning and pressing device 12 and the rear positioning and pressing device 7 act successively to press the welding workpiece 28 firmly. ; Restart the compression cylinder 17, the compression cylinder 17 pushes the guide rod 21 out of the top tight welding workpiece 28, and the horizontal movement cylinder 11 moves to push the slide plate 16 inward, so that the welding torch 22 is located at the longitudinal seam position; then, open the control blanking The material control cylinder 13 of the switch starts the welding torch 22 switch and the drive motor 3, and the moving plate 2 is welded in a straight line at a constant speed along the upper guide rail 5 under the action of the drive motor 3. During the welding process, it is only necessary to move the plate 2 close to the sensor 29, the drive motor 3 and the welding machine stop working, all cylinders are reset, the platform power cylinder 10 moves to push the welding platform 8 out, and the drive motor 3 drives the mobile plate 2 to reset, and the welding is completed .

The technical contents not described in detail in the present invention are all known technologies.

Claims (8)

1, supporting leg longitudinal seam automatic welding machine, it is characterized in that: comprise frame (1), frame (1) top is provided with back timber (30), one side of frame (1) is provided with crossbeam (4), upper rail (5) is set on the crossbeam (4), and upper rail (5) is gone up welding mechanism is installed, and back timber (30) is gone up prelocalization hold down gag (12) is installed, frame (1) goes up installs jig (8), and jig (8) is gone up interior lining panel device (9) is installed.

2, supporting leg longitudinal seam automatic welding machine according to claim 1, it is characterized in that: interior lining panel device (9) is by support plate (36), interior lining panel cylinder (24), first liner plate (34), second liner plate (35) and connecting rod (37) connect and compose, first chute (40) and second chute (45) are offered in the bottom of support plate (36), support plate (36) is gone up interior lining panel cylinder (24) is installed, the piston rod of interior lining panel cylinder (24) is connected with connecting rod (37), connecting rod (37) bottom is provided with first pin (38) and second pin (39), support plate (36) bottom is from top to bottom installed first liner plate (34) and second liner plate (35) successively, offer the 4th skewed slot (44) and second skewed slot (42) on first liner plate (34), offer the 3rd skewed slot (43) and first skewed slot (41) on second liner plate (35), first pin (38) penetrates in second skewed slot (42) through second chute (45) and first skewed slot (41), and second pin (39) penetrates in the 4th skewed slot (44) through first chute (40) and the 3rd skewed slot (43).

3, supporting leg longitudinal seam automatic welding machine according to claim 1 and 2, it is characterized in that: welding mechanism is by movable plate (2), slide plate (16), welding gun (22), traversing cylinder (11), drive motors (3) and gear (26) connect and compose, movable plate (2) is connected with upper rail (5), movable plate guide rail (15) is set on the movable plate (2), movable plate guide rail (15) is gone up slide plate (16) is installed, slide plate (16) is gone up traversing cylinder (11) is installed, one end of traversing cylinder (11) piston rod is connected with movable plate (2), slide plate (16) is gone up welding gun (22) is installed, movable plate (2) is gone up drive motors (3) is installed, gear (26) is installed on the output shaft of drive motors (3), tooth bar (25) is set, tooth bar (25) and gear (26) engagement on the crossbeam (4).

4, supporting leg longitudinal seam automatic welding machine according to claim 3, it is characterized in that: movable plate (2) is gone up clamping cylinder (17) is installed, the piston rod of clamping cylinder (17) is connected with an end of guide rod (21), the periphery mounting guide sleeve (19) of guide rod (21), guide pin bushing (19) is connected with movable plate (2).

5, supporting leg longitudinal seam automatic welding machine according to claim 1 and 2, it is characterized in that: platform rail (31) is set on the frame (1), one end of platform rail (31) stretches out outside the frame (1), platform rail (31) flexibly connects with jig (8), frame (1) goes up mounting platform actuating cylinder (10), and the piston rod of platform actuating cylinder (10) is connected with jig (8).

6, supporting leg longitudinal seam automatic welding machine according to claim 3 is characterized in that: the opposite side of frame (1) is provided with another root crossbeam (4), and another upper rail (5) is set on the crossbeam (4), and another upper rail (5) is gone up the second cover welding mechanism is installed.

7, supporting leg longitudinal seam automatic welding machine according to claim 1 and 2 is characterized in that: back timber (30) is gone up back positioning compression device (7) is installed, and back positioning compression device (7) is positioned at the rear of prelocalization hold down gag (12).

8, supporting leg longitudinal seam automatic welding machine according to claim 1 and 2 is characterized in that: locating hole (23) is offered at the rear portion of frame (1), and the rear of jig (8) is provided with locating piece (18), and locating piece (18) is corresponding with locating hole (23).

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