WO2022021907A1

WO2022021907A1 - Multi-pole nondestructive welding process of energy-saving bridge tooth profile

Info

Publication number: WO2022021907A1
Application number: PCT/CN2021/082719
Authority: WO
Inventors: 马松涛
Original assignee: 江苏万奇电器集团有限公司
Priority date: 2020-07-27
Filing date: 2021-03-24
Publication date: 2022-02-03
Also published as: CN111889973A; CN111889973B

Abstract

A multi-pole nondestructive welding process of an energy-saving bridge tooth profile, comprising multiple procedures of pole stamping, welding groove pressing, assembly before welding, intermittent feeding, and pole welding. Pole welding equipment comprises a worktable (7), a conveyor belt (8), first guide wheels (9), second guide wheels (10), a side plate feeding mechanism (11), a bottom plate feeding mechanism (12), and a welder (6). According to the welding process, bridge side plates and a bridge bottom plate completed pole stamping and welding groove pressing in advance are fed into the pole welding equipment for performing continuous pole welding. The welding process has characteristics of intermittent feeding, stable feeding, high welding efficiency, and good welding effect. Moreover, the distance between components is adjustable, and the applicability is high.

Description

A multi-pole nondestructive welding process for energy-saving bridge teeth

technical field

The invention relates to the technical field of bridge frame welding, in particular to a multi-pole nondestructive welding process for energy-saving bridge frame teeth.

Background technique

Lightweight reinforced tray-type cable tray is a kind of high-strength light-weight bridge, and the bottom plate of the bridge often adopts a corrugated structure. Welded as one.

When welding the bridge, it is often necessary to manually perform multi-point welding. While ensuring the structural strength, it also avoids the damage to the strength of the bridge by welding. However, the manual welding efficiency is not high, the cost is high, and the skill requirements of the welders are also high. very high, which is not conducive to the efficient production of such bridges.

SUMMARY OF THE INVENTION

Aiming at the above problems, the present invention discloses a multi-pole nondestructive welding process for energy-saving bridge teeth.

The specific technical solutions are as follows:

A multi-pole non-destructive welding process for energy-saving bridge teeth, characterized in that it includes the following specific steps:

(1) Pole punching: send the bridge frame side plate to the continuous punching equipment for continuous pole punching, and the punched pole protrudes to the inner side of the bridge frame side plate;

(2) Welding slot pressing: The bridge bottom plate is sent to the continuous pressing equipment, and the two sides of the bridge bottom plate are continuously and symmetrically pressed, and the pressed welding slot is concave in the direction of the central axis of the bridge bottom plate;

(3) Assembly before welding: Assemble the bridge frame side plate with the pole stamping and the bridge frame bottom plate after welding groove pressing together on the pole welding equipment. At this time, the bridge frame side plate is symmetrically assembled on both sides of the bridge frame bottom plate, and the bridge frame bottom plate is assembled. At the lower end between the side plates of the bridge, the poles fit with the welding grooves;

(4) Intermittent feeding: The assembled bridge side plate and the bridge bottom plate are synchronously fed and intermittently moved through the pole welding equipment, so that the pole and the welding groove pass through the pole welding station intermittently;

(5) Pole welding: When the pole and the welding groove enter the welding station, the current of the welder is turned on, and the pole welding is carried out. After the welding is completed, the bridge side plate and the bridge bottom plate continue to move intermittently, so that the next pole to be welded is connected to the welding pole. The slot goes into the pole welding station, where the pole welding continues.

The above-mentioned multi-pole nondestructive welding process for energy-saving bridge teeth, wherein the pole welding equipment includes a workbench, a conveyor belt, a first guide wheel, a second guide wheel, a side plate feeding mechanism, a bottom plate feeding mechanism and Welder;

The worktable is arranged in a straight line along the horizontal direction, the conveyor belt is arranged in the worktable and extends along the direction of the worktable, the first guide wheels are symmetrically arranged on both sides of the worktable through the support seat, and extend along the direction of the worktable , the second guide wheels are arranged above the workbench, in two groups, and connected by connecting rods, the second guide wheels are symmetrically arranged at both ends of the connecting rod, and are rotatably connected with the connecting rod through bearings, and the multiple groups of Two guide wheels extend along the direction of the table;

The side plate feeding mechanism is symmetrically arranged on both sides of the workbench, and includes an installation table, a sliding block, an electric sliding seat, a first driving wheel and a first driving motor. The installation table is arranged horizontally, and the sliding block fixes the It is arranged on the installation table, the electric sliding seat is slidably arranged on the slider, and is rotatably connected with the first driving wheel. The first driving motor is fixedly connected with the first driving wheel and controls the rotation of the first driving wheel. The bottom plate feeding mechanism is vertically arranged directly above the workbench, and includes a mounting plate and an electric crawler wheel, and the electric crawler wheel is rotatably arranged below the mounting plate.

The above-mentioned tooth-shaped multi-pole non-destructive welding process for energy-saving bridge frames, wherein the welder is composed of a power source, a side plate contact, a bottom plate contact, a mounting block, a first contact telescopic rod and a second contact telescopic rod. The number of the first contact telescopic rods is 2, which are arranged horizontally and symmetrically on both sides of the installation block, and are insulated and fixed to the side plate contacts through the insulating seat, and the second contact telescopic rods are vertically arranged It is located at the lower end of the installation block, and is insulated and fixed to the bottom plate contacts through the insulating seat, and the positive and negative poles of the power supply are respectively electrically connected with the side plate contacts and the bottom plate contacts.

The above-mentioned tooth-shaped multi-pole non-destructive welding process for energy-saving bridge frames, wherein a first telescopic cylinder is fixedly connected to the middle of the connecting rod, the first telescopic cylinder is vertically arranged, and the connecting rod is controlled to rise and fall vertically, and then Control the vertical lift of the second guide wheel.

The above-mentioned tooth-shaped multi-pole nondestructive welding process for energy-saving bridge frames, wherein a second telescopic cylinder is fixedly connected to the upper end of the mounting plate, and the second telescopic cylinder is vertically arranged to control the lifting and lowering of the mounting plate, and then control the electric motor. The crawler wheel lifts vertically.

The above-mentioned tooth-shaped multi-pole non-destructive welding process for an energy-saving bridge frame, wherein a third telescopic cylinder is fixedly connected to the upper end of the mounting block, and the third telescopic cylinder is vertically arranged to control the vertical lifting of the mounting block, and further Control the vertical lift of the welder.

The above-mentioned tooth-shaped multi-pole nondestructive welding process for energy-saving bridge frames, wherein the first contact telescopic rod and the second contact telescopic rod are one of an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

The above-mentioned tooth-shaped multi-pole nondestructive welding process for energy-saving bridge frame, wherein, in step (3), when the bridge frame side plate and the bridge frame bottom plate are assembled, the bridge frame side plate is placed horizontally on the conveyor belt, and its upper end is connected to the electric crawler. Wheel fit, driven by the electric crawler wheel to move intermittently along the direction of the worktable, the lower ends of the bridge side plates symmetrically assembled on both sides of the bridge bottom plate are fit with the first guide wheel, and the outer wall is fit with the first drive motor, so The second guide wheel is located in the groove on the upper end of the side plate of the bridge frame, and fits with the inner wall of the groove.

The above-mentioned tooth-shaped multi-pole non-destructive welding process for an energy-saving bridge frame, wherein, in step (4), when intermittent feeding of the bridge frame side plates and the bridge frame bottom plate is performed, the conveyor belt, the side plate feeding mechanism and the bottom plate feeding mechanism Synchronous start and stop, the first guide wheel and the second guide wheel are driven to rotate and play a guiding role.

The above-mentioned multi-pole non-destructive welding process for energy-saving bridge teeth, wherein, in step (5), when pole welding is performed, the welding grooves on both sides of the bridge bottom plate are divided into two times. , start the second contact telescopic rod and one of the first contact telescopic rods, make the bottom plate contact contact with the bottom plate of the bridge frame, make the side plate contact of one contact with the side plate of the other bridge frame, then start the power supply, and carry out the first One pole welding, after the welding is completed, the power supply is cut off, the first contact telescopic rod on one side is reset, and the first contact telescopic rod on the other side is extended, so that the side plate contact on the other side is connected to the other side. After the welding is completed, the power supply is cut off, the welder is reset, and the next pole welding is waited for.

The beneficial effects of the present invention are:

The invention discloses a multi-pole non-destructive welding process for energy-saving bridge teeth, including pole stamping, welding groove pressing, pre-welding assembly, intermittent feeding, and pole welding. The pole welding equipment includes a workbench, a conveyor belt, a first The guide wheel, the second guide wheel, the side plate feeding mechanism, the bottom plate feeding mechanism and the welder have reasonable design and simple principle, and can effectively realize the rapid welding of the bridge frame. The side plate and the bottom plate of the bridge are sent into the pole welding equipment for continuous pole welding. The welding efficiency is very high, which greatly saves labor costs. The pole welding equipment has a simple structure and convenient operation. It has intermittent feeding, stable feeding, high welding efficiency, and welding It has the characteristics of good effect, and the component spacing is adjustable, and the applicability is high.

Description of drawings

Figure 1 is a schematic diagram of the connection state between the side plate of the bridge and the bottom plate of the bridge.

Figure 2 is a perspective view of the side plate of the bridge.

Figure 3 is a top view of the bottom plate of the bridge frame.

Figure 4 is a cross-sectional view of the bottom plate of the bridge frame.

Figure 5 is a front view of the pole welding equipment.

Figure 6 is a side view of the pole welding equipment.

Figure 7 is a schematic diagram of the welder.

Description of reference numerals: 1. Bridge side plate; 2. Bridge bottom plate; 3. Pole; 4. Welding groove; 5. Pole welding equipment; 6. Welder; 7. Workbench; 8. Conveyor belt; 9. First guide wheel; 10, the second guide wheel; 11, the side plate feeding mechanism; 12, the bottom plate feeding mechanism; 13, the support seat; 14, the connecting rod; 15, the installation table; 16, the slider; 17, the electric sliding seat; 18. The first driving wheel; 19. The first driving motor; 20. The mounting plate; 21. The electric track wheel; rod; 26, the second contact telescopic rod; 27, the insulating seat; 28, the first telescopic cylinder; 29, the second telescopic cylinder; 30, the third telescopic cylinder.

detailed description

In order to make the technical solution of the present invention clearer and clearer, the present invention is further described below in conjunction with the embodiments, any solution obtained by performing equivalent replacement and conventional reasoning on the technical features of the technical solution of the present invention falls into the protection scope of the present invention.

Example 1

A multi-pole non-destructive welding process for energy-saving bridge teeth in the present embodiment is characterized in that it includes the following specific steps:

(5) Pole welding: When the pole and the welding groove enter the welding station, the current of the welder is turned on, and the pole welding is carried out. After the welding is completed, the bridge side plate and the bridge bottom plate continue to move intermittently, so that the next pole to be welded is connected to the welding pole. The slot enters the pole welding station, and the pole welding continues;

This embodiment is used to realize the rapid welding of the bridge mechanism. By sending the bridge side plate and the bridge bottom plate with the pole stamping and welding groove pressing in advance into the pole welding equipment, continuous pole welding is performed. The pole and the welding slot are automatically matched, and the welder automatically forms the current channel required for pole welding to achieve the effect of pole welding.

Embodiment 2

In this embodiment, a toothed multi-pole nondestructive welding process for energy-saving bridge frames, wherein the pole welding equipment includes a worktable, a conveyor belt, a first guide wheel, a second guide wheel, a side plate feeding mechanism, and a bottom plate feeding mechanism. Mechanisms and Welders;

The side plate feeding mechanism is symmetrically arranged on both sides of the workbench, and includes an installation table, a sliding block, an electric sliding seat, a first driving wheel and a first driving motor. The installation table is arranged horizontally, and the sliding block fixes the It is arranged on the installation table, the electric sliding seat is slidably arranged on the slider, and is rotatably connected with the first driving wheel. The first driving motor is fixedly connected with the first driving wheel and controls the rotation of the first driving wheel. The bottom plate feeding mechanism is vertically arranged directly above the workbench, and includes a mounting plate and an electric crawler wheel, and the electric crawler wheel is rotatably arranged below the mounting plate;

This embodiment is used for intermittent synchronous feeding of the bridge side plate and the bridge bottom plate, the bridge side plate and the bridge bottom plate are sent to the pole welding equipment, the bridge shape is initially formed, the pole and the welding groove are automatically fitted, and the electric crawler wheel presses the bridge bottom plate on the conveyor belt, And feed the bridge bottom plate, the bridge bottom plate indirectly presses the bridge side plate, the lower end of the bridge side plate is pressed on the first guide wheel, and the second guide wheel fits with the groove on the upper end of the bridge side plate to ensure the stability of the bridge side plate. The side plate feeding mechanism is used to feed the side plate of the bridge; during the feeding process, the pole and the welding groove fit stably and intermittently feed, which is convenient for the welder to perform pole welding intermittently.

Embodiment 3

In this embodiment, a tooth-shaped multi-pole nondestructive welding process for an energy-saving bridge frame is provided, wherein the welder is composed of a power source, a side plate contact, a bottom plate contact, a mounting block, a first contact telescopic rod and a second contact It consists of telescopic rods. The number of the first contact telescopic rods is 2, which are arranged horizontally and symmetrically on both sides of the mounting block, and are insulated and fixed to the side plate contacts through the insulating seat. The second contact telescopic rods are vertical. It is directly arranged on the lower end of the installation block, and is insulated and fixed to the bottom plate contacts through the insulating seat, and the positive and negative poles of the power supply are electrically connected to the side plate contacts and the bottom plate contacts respectively;

The side plate contacts and the bottom plate contacts on the welder in this embodiment are controlled to expand and contract through the first contact telescopic rod and the second contact telescopic rod, thereby controlling the electrical contact with the bridge side plate and the bridge bottom plate to realize the opposite pole The control of the welding current channel greatly improves the welding efficiency of pole welding.

Embodiment 4

In the present embodiment, a toothed multi-pole non-destructive welding process for an energy-saving bridge frame, wherein a first telescopic cylinder is fixedly connected to the middle of the connecting rod, the first telescopic cylinder is vertically arranged, and the vertical lifting and lowering of the connecting rod is controlled. , and then control the vertical lift of the second guide wheel. The upper end of the mounting plate is fixedly connected with a second telescopic cylinder, and the second telescopic cylinder is vertically arranged to control the lifting and lowering of the mounting plate, and further control the vertical lifting of the electric crawler wheel. The upper end of the mounting block is fixedly connected with a third telescopic cylinder, and the third telescopic cylinder is vertically arranged to control the vertical lifting and lowering of the mounting block, thereby controlling the vertical lifting and lowering of the welder;

Wherein, the first contact telescopic rod and the second contact telescopic rod are one of an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod;

In this embodiment, the vertical heights of the second guide wheel, the electric crawler wheel and the welder can be adjusted, which is convenient for pole welding of the same type of bridge with the same shape and different specifications, and has high applicability.

Embodiment 5

In the present embodiment, a toothed multi-pole nondestructive welding process for an energy-saving bridge frame, wherein, in step (3), when the bridge frame side plate and the bridge frame bottom plate are assembled, the bridge frame side plate is placed horizontally on the conveyor belt, and the upper end of the bridge frame is placed on the conveyor belt. The electric crawler wheels are attached, and the electric crawler wheels are driven to move intermittently along the direction of the worktable. The lower ends of the bridge side plates symmetrically assembled on both sides of the bridge base plate are attached to the first guide wheel, and the outer wall is attached to the first drive motor. , the second guide wheel is located in the shaped groove at the upper end of the side plate of the bridge frame, and is attached to the inner wall of the shaped groove, and the side plate of the bridge frame is driven by the first driving motor and the first driving wheel to move intermittently along the direction of the worktable;

Wherein, in step (4), during intermittent feeding of the bridge side plate and the bridge bottom plate, the conveyor belt, the side plate feeding mechanism and the bottom plate feeding mechanism are started and stopped synchronously, and the first guide wheel and the second guide wheel are from Move and rotate, play a guiding role;

, in step (5), when pole welding is performed, the welding grooves on both sides of the bridge bottom plate are welded to the poles on the bridge side plate twice. First, start the second contact telescopic rod and one of the first contact telescopic rods. rod to make the contact of the bottom plate contact with the bottom plate of the bridge frame, so that the contact of one side plate is in contact with the side plate of the other bridge, then start the power supply, and perform the first pole welding. After the welding is completed, the power supply is cut off, and the first A contact telescopic rod is reset, and the first contact telescopic rod on the other side is extended, so that the side plate contact on the other side is in contact with the bridge side plate on the other side, and then starts, and the second pole welding is performed. The welding is completed, the power is cut off, the welder is reset, and the next pole welding is awaited.

To sum up, the present invention has a reasonable design and a simple principle, and can effectively realize the rapid welding of the bridge frame. The bridge frame side plate and the bridge frame bottom plate, which have completed the pole stamping and welding groove pressing in advance, are sent into the pole welding equipment to carry out continuous pole welding. , The welding efficiency is extremely high, which greatly saves labor costs. The pole welding equipment has a simple structure and convenient operation. It has the characteristics of intermittent feeding, stable feeding, high welding efficiency, and good welding effect, and the distance between components is adjustable and has high applicability.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

A multi-pole non-destructive welding process for energy-saving bridge teeth, characterized in that it includes the following specific steps:

(1) Pole punching: send the bridge frame side plate to the continuous punching equipment for continuous pole punching, and the punched pole protrudes to the inner side of the bridge frame side plate;

(2) Welding slot pressing: The bridge bottom plate is sent to the continuous pressing equipment, and the two sides of the bridge bottom plate are continuously and symmetrically pressed, and the pressed welding slot is concave in the direction of the central axis of the bridge bottom plate;

(3) Assembly before welding: Assemble the bridge frame side plate with the pole stamping and the bridge frame bottom plate after welding groove pressing together on the pole welding equipment. At this time, the bridge frame side plate is symmetrically assembled on both sides of the bridge frame bottom plate, and the bridge frame bottom plate is assembled. At the lower end between the side plates of the bridge, the poles fit with the welding grooves;

(4) Intermittent feeding: The assembled bridge side plate and the bridge bottom plate are synchronously fed and intermittently moved through the pole welding equipment, so that the pole and the welding groove pass through the pole welding station intermittently;

(5) Pole welding: When the pole and the welding groove enter the welding station, the current of the welder is turned on, and the pole welding is carried out. After the welding is completed, the bridge side plate and the bridge bottom plate continue to move intermittently, so that the next pole to be welded is connected to the welding pole. The slot goes into the pole welding station, where the pole welding continues.
The multi-pole non-destructive welding process for energy-saving bridge teeth according to claim 1, wherein the pole welding equipment comprises a workbench, a conveyor belt, a first guide wheel, a second guide wheel, and a side plate feeder. Mechanism, base plate feeding mechanism and welder;

The worktable is arranged in a straight line along the horizontal direction, the conveyor belt is arranged in the worktable and extends along the direction of the worktable, the first guide wheels are symmetrically arranged on both sides of the worktable through the support seat, and extend along the direction of the worktable , the second guide wheels are arranged above the workbench, in two groups, and connected by connecting rods, the second guide wheels are symmetrically arranged at both ends of the connecting rod, and are rotatably connected with the connecting rod through bearings, and the multiple groups of Two guide wheels extend along the direction of the table;

The side plate feeding mechanism is symmetrically arranged on both sides of the workbench, and includes an installation table, a sliding block, an electric sliding seat, a first driving wheel and a first driving motor. The installation table is arranged horizontally, and the sliding block fixes the It is arranged on the installation table, the electric sliding seat is slidably arranged on the slider, and is rotatably connected with the first driving wheel. The first driving motor is fixedly connected with the first driving wheel and controls the rotation of the first driving wheel. The bottom plate feeding mechanism is vertically arranged directly above the workbench, and includes a mounting plate and an electric crawler wheel, and the electric crawler wheel is rotatably arranged below the mounting plate.
The tooth-shaped multi-pole non-destructive welding process for energy-saving bridge frames according to claim 2, wherein the welder is composed of a power source, a side plate contact, a bottom plate contact, a mounting block, and a first contact telescopic rod and the second contact telescopic rod. The number of the first contact telescopic rod is 2, which are horizontally symmetrically arranged on both sides of the installation block, and are insulated and fixed to the side plate contacts through the insulating seat. The contact telescopic rod is vertically arranged at the lower end of the installation block, and is insulated and fixed to the bottom plate contact through the insulating seat. The positive and negative poles of the power supply are electrically connected to the side plate contact and the bottom plate contact respectively.
The tooth-shaped multi-pole non-destructive welding process for energy-saving bridge frames according to claim 3, wherein a first telescopic cylinder is fixedly connected to the middle of the connecting rod, and the first telescopic cylinder is vertically arranged and controlled The connecting rod is vertically lifted and lowered, thereby controlling the vertical lift of the second guide wheel.
The tooth-shaped multi-pole nondestructive welding process for energy-saving bridge frames according to claim 4, wherein a second telescopic cylinder is fixedly connected to the upper end of the mounting plate, the second telescopic cylinder is vertically arranged, and the control The mounting plate lifts and lowers, and then controls the vertical lift of the electric crawler wheel.
The tooth-shaped multi-pole nondestructive welding process for an energy-saving bridge frame according to claim 5, wherein a third telescopic cylinder is fixedly connected to the upper end of the mounting block, the third telescopic cylinder is vertically arranged, and the control The mounting block is vertically lifted, thereby controlling the vertical lift of the welder.
The tooth-shaped multi-pole non-destructive welding process for an energy-saving bridge frame according to claim 3, wherein the first contact telescopic rod and the second contact telescopic rod are electric telescopic rods, pneumatic telescopic rods or hydraulic One of the telescopic rods.
The tooth-shaped multi-pole nondestructive welding process for an energy-saving bridge frame as claimed in claim 7, wherein in step (3), when the bridge frame side plate and the bridge frame bottom plate are assembled, the bridge frame side plate is placed horizontally on the conveyor belt On the upper end, the upper end is attached to the electric crawler wheel, which is driven by the electric crawler wheel to move intermittently along the direction of the worktable. A drive motor is attached, the second guide wheel is located in the groove at the upper end of the side plate of the bridge frame, and is attached to the inner wall of the groove, and the side plate of the bridge frame is driven by the first drive motor and the first drive wheel, intermittently along the direction of the worktable move.
The tooth-shaped multi-pole nondestructive welding process for energy-saving bridge frames according to claim 8, wherein in step (4), during intermittent feeding of the bridge frame side plates and the bridge frame bottom plates, the conveyor belt and the side plates are fed The feeding mechanism and the bottom feeding mechanism start and stop synchronously, and the first guide wheel and the second guide wheel are driven to rotate and play a guiding role.
The tooth-shaped multi-pole nondestructive welding process for energy-saving bridge frames according to claim 9, characterized in that, in step (5), when pole welding is performed, the welding grooves on both sides of the bridge base plate are divided into two times with the bridge side For pole welding on the board, first, start the second contact telescopic rod and one of the first contact telescopic rods, so that the bottom plate contacts are in contact with the bottom plate of the bridge frame, so that one side plate contact is in contact with the other side plate of the bridge frame. , then start the power supply and perform the first pole welding. After the welding is completed, the power supply is powered off, the first contact telescopic rod on one side is reset, and the first contact telescopic rod on the other side is extended, so that the side of the other side is extended. The plate contact contacts with the bridge side plate on the other side, and then starts to perform the second pole welding.