CN111790964A

CN111790964A - Automatic welding equipment for pneumatic clamping of trapezoidal guardrail

Info

Publication number: CN111790964A
Application number: CN202010613636.9A
Authority: CN
Inventors: 熊瑞平; 彭博; 刘悦沆; 陈贵全; 侯俊奎; 徐毅松
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-10-20

Abstract

The patent discloses a pneumatic clamping automatic weld equipment of trapezoidal guardrail. The equipment consists of a base, a clamping mechanism, a moving mechanism and an electric control system. The base consists of eight feet, a platform and two cross beams. The clamping mechanism consists of two height adjusting modules, two interval adjusting mechanisms and a cylinder group. The height adjusting mechanism is guided by a dovetail groove, and the height is adjusted by a height adjusting hand wheel arranged at the bottom; the spacing adjusting mechanism is an adjustable equidistant separation device consisting of a plurality of brake pads; the cylinder group consists of cylinders and cylinder supports; the action mechanism consists of an electric sliding table and two manual sliding tables. The electric control system can control different movement tracks of the electric sliding table, the stretching of the air cylinder and start and stop operations according to input signals. The beneficial effect of this patent is: the number of special processing personnel is reduced, the production efficiency is improved, the processing cost is reduced, and the welding quality is improved.

Description

Automatic welding equipment for pneumatic clamping of trapezoidal guardrail

Technical Field

The patent relates to the field of welding of guard rails, in particular to clamping and automatic welding method with adjustable spacing for trapezoidal guardrails or other guardrails with trapezoidal structures.

Background

With the obvious acceleration of the process of Chinese urbanization, more and more people are rushed into big and medium cities, which brings huge housing requirements, and the trapezoidal guardrail is an indispensable product in housing and has a great amount of requirements every year.

The use background of this patent is exclusively used in the batch production of the trapezoidal guardrail of engineering, and the welding of current trapezoidal guardrail is manual welding, and when the welding, because the length of trapezoidal guardrail, height and tubular product size are different, can only make a temporary fixture for the different guardrail of each model, and the waste time can not guarantee the accuracy of every anchor clamps moreover, has reduced the quality of product. This patent is through the fine solution this problem of adjustable anchor clamps, can carry out accurate clamping location to the guardrail that changes the model in the short time. Simultaneously, ordinary anchor clamps can not be tight with tubular product top when the welding, so can appear the gap on the both sides of not welding, need carry out the processing of mending the atomic ash in the later stage, increased the process of mending the atomic ash one, and this patent is tight through five cylinder tops, fine solution this problem. Finally, the welding mode of automation is more stable than manual welding, and the welding seam is littleer, can alleviate the work load of the processing of polishing in later stage, and the automatic guardrail welding machine of other patents does not have the welding to trapezoidal guardrail specially, and it is big to have area, shortcomings such as expensive.

Meanwhile, a working mode that the two-rod welding gun horizontally walks is adopted, the position of the welding gun is transversely adjusted manually, and the trapezoidal guardrail can be welded in the simplest and most convenient movement mode. Practice proves that the automatic welding machine of this patent has great promotion to the welding speed of trapezoidal guardrail for ordinary manual welding speed. Simultaneously, the automatic welding machine designed by the patent is simple to operate, common workers can control the automatic welding machine, and the number of special processing personnel is reduced.

Disclosure of Invention

In order to improve the production efficiency, improve the processing quality, reduce the labor cost and solve the problem that guardrails of different types are difficult to clamp, the invention provides automatic pneumatic clamping welding equipment for trapezoidal guardrails.

The technical scheme that its technical problem adoption is solved to this patent is: a pneumatic clamping automatic welding device for a trapezoidal guardrail. The equipment consists of a base, a clamping mechanism, a moving mechanism and an electric control system. The base consists of eight feet, a platform and two cross beams; the platform is used for supporting and installing the fixing clamp mechanism, and the two cross beams are respectively used for supporting and fixing the action mechanism and the wire moving machine of the carbon dioxide protective gas welding machine. The clamping mechanism consists of two height adjusting modules, two spacing adjusting modules and a cylinder group. Mainly solve be under the condition of trapezoidal guardrail model change, the hand wheel through adjusting moving mechanism's slip table adapts to the change of trapezoidal guardrail height, adjusts the interval between the standpipe through spacing adjustment mechanism, readjusts height adjustment mechanism in order to adapt to the difference in height between face pipe and the standpipe. Parameters are changed on a display screen of the electric control system, so that the ladder-shaped guardrail can adapt to ladder-shaped guardrails of different models.

Preferably, the position of the height adjustment mechanism does not change during use. The height adjusting hand wheel disc is composed of a flat plate for placing a flour tube, two dovetail groove guides fixed on a base, and two height adjusting hand wheel discs with lead screws, wherein the height difference between the flour tube and a vertical tube is manually adjusted by rotating the two height adjusting hand wheel discs, so that the shape accuracy of the clamped trapezoidal guardrail is ensured. The height adjusting plate of the cylinder group height adjusting mechanism is connected with the cylinder group, and the position can be adjusted according to the height difference of the trapezoidal guardrail. The height adjusting plate is limited to move up and down only by guiding through the four dovetail grooves, the two height adjusting hand wheel discs with the lead screws are installed on the lower portion of the height adjusting hand wheel disc, and the height difference between the face pipe and the vertical pipe is adjusted manually by rotating the height adjusting hand wheel discs, so that the shape accuracy of the clamped trapezoidal guardrail is guaranteed.

Preferably, the distance adjusting mechanism is composed of a double-hole brake pull sheet, a three-hole brake pull sheet, two long and short pins which are arranged and assembled. A supporting plate is arranged below the fixed spacing adjusting mechanism, the supporting plate of the fixed spacing adjusting mechanism is fixed on the base, one end of the brake is fixed on the supporting plate through welding, and the other end of the brake is locked through installing a spacing adjusting locking block on the pin. The distance adjusting locking block penetrates through a bolt of the through mechanism bottom plate, and the bolt is screwed after the distance is adjusted, so that the brake pull is fixed at a specific position. And determining the adjusting position of the bolt according to the total clearance length of the guardrail, wherein the length of each interval is automatically generated by arranging and assembling the brake pull pieces. One tube is arranged at each long pin, and the distance between the two tubes is the standard distance. The side of the spacing adjusting mechanism is provided with a plate supporting vertical pipe, the height of the supporting plate is unchanged, the height of the vertical pipe is unchanged, and the height difference between the vertical pipe and the surface pipe is changed by adjusting the height of the height adjusting mechanism. The basic structure of the moving distance adjusting mechanism is the same as that of the fixed distance adjusting mechanism, and the installation modes are different. The moving distance adjusting mechanism is arranged on the linear guide rail, can adjust the distance adjusting mechanism at a proper position according to the height of the trapezoidal guardrail, and fixes the position of the distance adjusting mechanism through the locking mechanism of the sliding block. The apparatus differs from the same in that it allows for rapid adjustment of the distance between the risers.

Preferably, the cylinder group is composed of five thin cylinders arranged at equal intervals on a cylinder bracket, the height adjusting mechanism of the cylinder group and the rear cylinder group is arranged on the linear guide rail, the cylinder group can be adjusted to a proper position according to the height of the guardrail, and the position of the cylinder group is fixed through locking of a sliding block of the linear guide rail. The cylinder is controlled to stretch out and draw back through an electric control system, so that the trapezoidal guardrail is compressed and released.

Preferably, the long-stroke linear sliding table is integrally fixed on the base through a screw, the movement of the linear sliding block is controlled through a servo motor, and the long-stroke linear sliding table is matched with an electric control system to perform accurate positioning welding; an aluminum alloy connecting plate is arranged on the long-stroke linear sliding table, the short-stroke linear sliding table and a middle-stroke linear sliding table are fixed on the connecting plate, and the two sliding tables are positioned on the same straight line. Two automatic welding guns are respectively arranged on a short-stroke sliding table and a long-stroke sliding table with a hand wheel disc. The short-stroke sliding table and the long-stroke sliding table are ball screw sliding tables with manual turntables and are provided with locking devices, manual rotation is carried out when a welding part is replaced, the ball screw sliding tables are adjusted to a proper position and locked, and the accuracy of the welding position is guaranteed.

Preferably, the electronic control system can input the total length of the guardrail, the number of the vertical pipes, the size of the pipes and the welding position of the first pipe fitting. Calculating the welding idle stroke distance, controlling the welding gun to run at each welding position according to the set welding speed, controlling the welding length to be the size of the input pipe, and controlling the welding gun to move at each idle stroke according to the preset idle stroke speed and the idle stroke length. And simultaneously controlling different movement tracks of the electric sliding table, the stretching of the air cylinder and starting and stopping operations.

The beneficial effects of this patent are that, have solved the not co-altitude, length, the automatic weld problem of the trapezoidal guardrail of tubular product size, reduce special processing personnel's quantity, improve interest rate production efficiency, reduce the processing cost, improve welding quality.

Drawings

The patent is described in further detail below with reference to the figures and the detailed description

FIG. 1 shows a schematic structural diagram of the present patent;

FIG. 2 is a schematic side view of the present patent;

FIG. 3 is a schematic top view of the present patent;

fig. 4 shows a schematic view of the cylinder block and the elevating mechanism in front view of this patent.

In the figure: 1. a welding gun; 2. a hand wheel disc; 3. a short-stroke linear sliding table; 4. a long-stroke linear sliding table; 5. a quincuncial coupler; 6. a servo motor; 7. a middle-stroke linear sliding table; 8. a base; 9. a height adjustment mechanism; 10. a pin; 11. three-hole brake pads; 12. a fixed spacing adjustment mechanism; 13. a linear guide rail; 14. a cylinder group; 15. a cylinder group height adjusting mechanism; 16. a cylinder group sinking base; 17; a movement distance adjusting mechanism; 18. a double-hole brake pad; 19. a second moving distance adjusting mechanism; 20. a spacing adjustment locking block; 21. a welding gun clamp; 22. two welding wire-feeding machines; 23. a manual slipway connecting plate; 30. a surface tube; 31. a vertical tube; 32. the height adjustment hand wheel dish.

Detailed Description

The technical solution in the embodiments of the present patent will be clearly and completely described below with reference to the drawings in the embodiments of the present patent. All other embodiments, which can be derived by a person skilled in the art from the embodiments given in this patent without making any creative effort, shall fall within the protection scope of the present invention.

The welding of trapezoidal guardrail can divide into same batch welding and different batch welding, can be according to the height of this batch of trapezoidal guardrail when welding in different batches, through linear guide (13) adjustment cylinder group height adjustment mechanism (15) and the distance adjustment mechanism (9) between the distance and adjust welder to suitable welding position through rotating the hand wheel dish on short slip table and the well slip table. The height difference between the trapezoidal guardrail surface pipes in the batch and the vertical pipes changes the distance between the height adjusting mechanism and the vertical pipes on the interval adjusting mechanism, and then the interval between the vertical pipes is calculated according to the distance between the vertical pipes and the interval adjusting mechanism.

The length, the height and the size of the surface pipe of the trapezoidal guardrail in the same batch can be changed. When the trapezoidal guardrails with different lengths are welded, the distance of the vertical pipe distance adjusting mechanism is adjusted according to the calculated distance, and other adjusting mechanisms are not changed. Different batches of ladder barriers can vary in length, height, and size of tubing. When different batches of trapezoidal guardrails are welded, the positions of the cylinder group (14), the cylinder group height adjusting mechanism (15), the moving distance adjusting mechanism (19) and the sliding blocks of the short-stroke linear sliding table (3) and the long-stroke linear sliding table (7) need to be adjusted according to the height of the trapezoidal guardrails, so that the clamping and welding positions are accurate. Meanwhile, the heights of the adjusting plates of the two height adjusting mechanisms (9) and (15) are adjusted according to the height difference between the vertical pipe (31) and the surface pipe (30) so as to ensure the accurate clamping and welding positions. The rest of the adjustment methods are the same as the adjustment methods of the same batch. This patent can also be used for other engineering guardrails that contain the trapezium structure and other weldments that contain the trapezium mechanism except being used for the welding of engineering trapezium guardrail.

In a place where automatic welding is not used, a clamp is made for each type of trapezoidal guardrail in a common way, so that the labor intensity is increased, and the working efficiency is reduced. Therefore, even if automatic welding is not used, the welding position can be determined accurately by the clamp, and the welding quality is ensured while the clamp is not manufactured for each type of guardrail.

The electric control system consists of a programmable controller, an industrial touch screen, a plurality of sensors and buttons. The total length of the guardrail, the number of vertical pipes, the size of the pipe and the welding position of the first pipe fitting are input on the industrial touch screen. And the programmable controller calculates the welding idle stroke distance, controls the welding gun to operate at each welding position according to a set welding speed, the welding length is the size of the input pipe, and moves at each idle stroke according to a preset idle stroke speed, wherein the idle stroke length is the calculated idle stroke distance. Click the start button, the cylinder presss from both sides trapezoidal guardrail earlier tightly, and the one side of starter motor welding trapezoidal guardrail after that, the welding is accomplished, and the cylinder relaxs. The manual work carries out the turn-over operation to the guardrail, presses start button once more, and the cylinder presss from both sides trapezoidal guardrail tightly earlier, and the other one side of starter motor welding trapezoidal guardrail after that, the welding is accomplished, and the cylinder relaxs. So far, trapezoidal guardrail welding is accomplished.

The wire feeder (22) of the carbon dioxide shielded gas welder is an important component of the carbon dioxide shielded gas welder and is directly connected with a wire feeding hose. The wire moving hose is placed at a position which is slightly higher than the welding gun (1) and is close to the center of the moving part, so that the smooth wire moving of the welding gun in the operation process can be fully ensured, and the condition that the wire moving hose is not long enough can be avoided.

Claims

1. The utility model provides a trapezoidal guardrail pneumatic clamping automatic weld equipment, its characterized in that passes through each mechanism of base (8) fixed, base (8) adopt the whole welding of rectangle steel pipe, with height adjustment mechanism (9), cylinder group height adjustment mechanism (15), fixed interval guiding mechanism (12), remove interval guiding mechanism (19) and install the comfortable operating height of people, with short stroke straight line slip table (3), long stroke straight line slip table (4), well stroke straight line slip table (7) and welder (1) fixed to the suitable welded position that slightly rises, fix carbon dioxide protective gas welding machine threading machine (22) to welder higher position slightly.

2. The automatic pneumatic clamping welding equipment for the trapezoidal guardrails according to claim 1, wherein the whole long-stroke linear sliding table (4) is fixed on a base (8) through screws, the linear sliding block is controlled to move through a servo motor, and the servo motor is matched with an electric control system to perform accurate positioning welding; an aluminum alloy connecting plate is arranged on the long-stroke linear sliding table (4), a short-stroke linear sliding table (3) and a middle-stroke linear sliding table (7) are fixed on the connecting plate, and the two sliding tables are positioned on the same straight line; the two-rod automatic welding gun (1) is respectively arranged on a short-stroke sliding table (3) and a long-stroke sliding table (7) with a handwheel disk (2); the short-stroke sliding table (3) and the long-stroke sliding table (7) are ball screw sliding tables with manual turntables and are provided with locking devices, manual rotation is carried out when welding parts are replaced, the ball screw sliding tables are adjusted to proper positions and locked, and the accuracy of welding positions is guaranteed.

3. The automatic welding equipment for the pneumatic clamping of the trapezoidal guardrail according to the claim 1 is characterized in that the cylinder group (14) is composed of five thin cylinders arranged on a cylinder bracket according to equal distance, the cylinder group (14) and a rear cylinder group height adjusting mechanism (15) are arranged on the linear guide rail (13), the cylinder group (14) can be adjusted to be in a proper position according to the height of the guardrail, and the position of the cylinder group (13) is fixed through the locking of a sliding block of the linear guide rail (13); the cylinder is controlled to stretch out and draw back through an electric control system, so that the trapezoidal guardrail is compressed and released.

4. The automatic welding equipment for the pneumatic clamping of the trapezoidal guardrail according to claim 1, wherein the position of the height adjusting mechanism (9) is not changed in use; the height difference between the face pipe (30) and the vertical pipe (31) is manually adjusted by rotating the two height adjusting hand wheel discs (32), so that the shape accuracy of the clamped trapezoidal guardrail is ensured; the height adjusting flat plate of the cylinder group height adjusting mechanism (15) is connected with the cylinder group (14) together, and the position can be adjusted according to the height difference of the trapezoidal guardrail; the height adjusting plate is limited to move up and down only by guiding through the four dovetail grooves, the two height adjusting hand wheel discs (32) with the lead screws are installed on the lower portion of the height adjusting plate, and the height difference between the surface pipe and the vertical pipe is manually adjusted by rotating the height adjusting hand wheel discs (32), so that the shape accuracy of the clamped trapezoidal guardrail is guaranteed.