CN215941816U - Tool for butt welding of large-diameter lining pipe assembly - Google Patents

Abstract

The utility model discloses a tool for butt welding of a large-diameter lining pipe assembly, which comprises a rotary base, a rotary power system, a rotary inner ring assembly and an axial moving system, wherein a prepared plate belt is tightly hung into the tool by a hanging belt; the problem of body itself be difficult to the group is solved, guarantee that bushing pipe carries out good makeup group to group, guarantee the spot welding efficiency of bushing pipe.

Description

Tool for butt welding of large-diameter lining pipe assembly

Technical Field

The utility model relates to a bimetal composite pipe processing technology, in particular to a tool for butt welding of a large-diameter lining pipe assembly.

Background

Because the bimetal composite pipe has excellent service performances such as high pressure resistance, corrosion resistance and the like, the bimetal composite pipe is widely applied to industries such as petroleum, chemical engineering, water supply and the like. With the application and use of the composite pipe in various industries, the market demand is continuously increased, and the specification requirement on the composite pipe is increased, so that higher requirements are provided for the production of the stainless steel lining of the composite pipe. In order to meet market demands, product coverage of the large-diameter bimetal composite pipe is further improved, production efficiency of the lining pipe is improved, and ovality and straightness of the stainless steel lining pipe during gantry welding are guaranteed, and therefore the large-diameter lining pipe group is designed to be used for spot welding, and good forming of subsequent welding is guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool for spot welding of a large-diameter lining pipe assembly, which ensures that the lining pipe can be well assembled and improves the spot welding efficiency of the large-diameter lining pipe.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a tool for spot welding of a large-diameter lining pipe assembly comprises a rotary base, a rotary power system, a rotary inner ring assembly and an axial moving system;

the rotary base provides support for the whole tool, and the rotary power system provides a power supply for the whole tool; the rotary inner ring assembly comprises a hydraulic pressing disc and rotary inner ring rollers, the two groups of rotary inner ring rollers are arranged on the rotary base in parallel and driven by a rolling driving motor, and the rolling driving motor is powered by a rotary power system;

an inner ring formed by connecting two annular rolling rings is supported on the rotary base through a rotary inner ring roller, and can roll under the drive of the rotary inner ring roller; the hydraulic pressure pressing disc is an annular structure consisting of a right pressing disc, a left pressing disc and a lower pressing disc, the annular structure is installed in the inner ring and is concentric with the inner ring, the lower pressing disc is fixed on the inner ring through two supporting seats, the lower end parts of the right pressing disc and the left pressing disc are respectively connected with the lower pressing disc through a hinge shaft, the upper end parts of the right pressing disc and the left pressing disc are respectively hinged with one end of a pressing oil cylinder, and the right pressing disc, the left pressing disc and the lower pressing disc form the annular structure after the upper end parts of the right pressing disc and the left pressing disc are tightly matched through the pressing oil cylinder;

the axial movement system comprises two axial movement rollers which are arranged on the rotating base side by side, the axial movement rollers are positioned on one axial side of the inner ring and are as high as the inner wall of the hydraulic pressing disc, and the axial movement rollers are driven by the axial driving motor to rotate so as to move the spliced pipes along the axial direction.

Furthermore, two inner ring positioning devices are respectively arranged on two axial sides of the inner ring, each inner ring positioning device comprises an inverted L-shaped pressure rod which is arranged on the rotating base and is positioned at the front end and the rear end of the inner ring and a pulley which is arranged at the end part of the pressure rod and is abutted against the inner ring, and the pulley presses the front end surface and the rear end surface of the inner ring to limit the axial displacement when the inner ring rolls.

Further, the right pressing plate, the left pressing plate and the lower pressing plate are all composed of two arc plates arranged in parallel on two sides, and the arc plates on the two sides are fixed by a plurality of pull rods in a traction mode.

Further, two axial displacement gyro wheels that set up side by side pass through the support mounting on rotating base, and the support passes through bolt construction and links to each other with rotating base, through adjusting bolt length adjustment axial displacement gyro wheel height.

And further, the device comprises a control system, wherein the control system comprises a PLC (programmable logic controller), and the PLC controls the compression oil cylinder, the rolling driving motor and the axial driving motor respectively.

Further, the rotary power system adopts a three-phase four-wire system AC380V and a 50HZ power supply.

The utility model has the following beneficial effects:

the device comprises a rotary base, a rotary power system, a rotary inner ring assembly and an axial moving system, wherein a prepared plate belt is tightly hung into the tool by a hanging belt, the conversion of a liner pipe from the plate belt to a pipe can be well completed by pressing a hydraulic pressing disc of the rotary inner ring assembly of the device, and the rotary power system and the axial moving system are arranged to ensure that the liner pipe can be moved at any position along the axial direction and the circumferential direction, so that the liner pipe can be conveniently assembled and spot-welded; the problem of body itself be difficult to the group is solved, guarantee that bushing pipe carries out good makeup group to group, guarantee the spot welding efficiency of bushing pipe.

The tool can be used for the splicing and assembling process of a large-caliber lining pipe with the inner diameter phi 900-phi 1400 and the wall thickness less than 6mm, the spot welding efficiency of the large-caliber lining pipe is improved, the ovality of the lining pipe is better guaranteed in the forming process, the operation is simple, the performance is stable, and the requirement of spot welding of the large-caliber lining pipe can be met.

Drawings

FIG. 1 is a schematic front view of the present invention

FIG. 2 is a schematic side view of the present invention

In the figure: 1-rotating the inner ring assembly; 2-hydraulic pressing disc; 3-lining the tube; 4-inner ring positioning means; 5-rotating the power system; 6-axially moving the roller; 7-an axial movement mechanism; 8-rotating the base; 9-rotating the inner ring roller; 10-inner ring; 11-right platen; 12-a left platen; 13-a lower platen; 14-a support base; 15-a hinged axis; 16-a compression oil cylinder; 17-a pull rod; 18-a pressure bar.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are not intended to limit the utility model thereto.

As shown in figures 1 and 2, the tool for spot welding of the large-caliber lining pipe assembly comprises a rotating base 8, a rotating power system 5, a rotating inner ring assembly 1, an axial moving system 7, a hydraulic system 5, a control system and the like.

Rotating base 8 is mainly responsible for supporting whole frock, and other devices are all installed on rotating base 8. The rotary power system 5 uses a three-phase four-wire system AC380V, 50HZ power supply to power the rotary and translational movement of the apparatus.

The rotating inner ring assembly 1 comprises a hydraulic pressing disc 2, an inner ring positioning device 4 and a rotating inner ring roller 9; two groups of rotating inner ring rollers 9 are arranged on the rotating base 8 in parallel, the two groups of rotating inner ring rollers 9 are driven to rotate by a rolling driving motor, and the rolling driving motor is powered by a rotating power system 5. An inner ring 10 formed by connecting two annular rolling rings is supported on the rotating base 8 through a rotating inner ring roller 9, and the inner ring 10 can roll under the driving of the rotating inner ring roller 9. The hydraulic pressure compresses tightly the disc 2 and is by right pressure disk 11, the annular structure that left pressure disk 12 and lower pressure disk 13 are constituteed, this annular structure is installed in inner circle 10 and is set up with inner circle 10 concentric circles, lower pressure disk 13 is fixed on inner circle 10 through two supporting seats 14 that the certain distance set up at interval, the lower tip of right pressure disk 11 and left pressure disk 12 is connected with lower pressure disk 13 through a articulated shaft 15 respectively, the upper end of right pressure disk 11 and left pressure disk 12 is articulated with the one end of compressing cylinder 16 respectively, right pressure disk 11, can move about between left pressure disk 12 and the lower pressure disk 13 three tie point, after the upper end tensioning of right pressure disk 11 and left pressure disk 12 agrees with through compressing cylinder 16, right pressure disk 11, left pressure disk 12 and lower pressure disk 13 constitute the ring.

The right pressure plate 11, the left pressure plate 12 and the lower pressure plate 13 are all composed of two arc plates arranged in parallel on two sides, and the arc plates on the two sides are fixed by a plurality of pull rods 17 in a traction mode. Meanwhile, in order to prevent the inner ring 10 from being separated from the rotating inner ring roller 9, two inner ring positioning devices 4 are respectively arranged on two sides of the inner ring 10, each inner ring positioning device 4 comprises an inverted L-shaped pressure lever 18 which is arranged on the rotating base 8 and is positioned at the front end and the rear end of the inner ring 10 and a pulley which is arranged at the end part of the pressure lever and is abutted against the inner ring 10, and when the inner ring 10 rolls under the driving of the rotating inner ring roller 9, the pulley presses the front end surface and the rear end surface of the inner ring 10 to limit the axial displacement of the inner ring, so that the inner ring 10 is prevented from being separated from the rotating inner ring roller 9.

The installed liner tube plate strips are spliced and assembled through the pressing of the right circular pressing disc, the rotating power system drives the inner ring roller to rotate, so that the rotating inner ring drives the inner liner tube to rotate, and the inner ring positioning device ensures that the rotating inner ring does not move.

The axial moving system 7 comprises two axial moving rollers 6 which are arranged on a rotating base 8 side by side, the axial moving rollers 6 are positioned on one axial side of the inner ring 10 and have the same height as the inner wall of the hydraulic pressing disc 2, and the axial moving rollers 6 are driven to rotate by an axial driving motor, so that the spliced and assembled pipes are moved forwards to a proper position along the axial direction to be subjected to spot welding, and subsequent seam welding is facilitated; two axial displacement gyro wheels 6 that set up side by side pass through the support mounting on rotating base 8, and the support passes through bolted construction and links to each other with rotating base 8, conveniently adjusts the height of axial displacement gyro wheel 6 through adjusting bolt length.

The hydraulic system mainly comprises five parts, namely a hydraulic station, an oil cylinder, a limit part, a hydraulic pipeline and a valve, and mainly provides hydraulic power for the pressing oil cylinder 16 and controls the power; the control system comprises a PLC, a touch screen, a sensor and the like, and can accurately and safely control the rotating speed by adopting a frequency conversion control mode.

The utility model relates to a tool for spot welding of a large-caliber lining pipe assembly, which is called as follows:

1. if the wall thickness of the liner tube is large, the liner tube can be pre-bent in advance when the liner tube cannot be placed into equipment at one time;

2. pressing a reset button to separate the inner ring compression ring and lift the transverse moving seat;

3. hoisting and placing a liner tube to be spot-welded on an axial moving seat, and pushing the liner tube into equipment by hands;

4. the position of the liner tube is adjusted, the downward moving button is manually pressed, the transverse moving seat is lowered, and the liner tube is dropped on the compression ring;

5. pressing down a pressing button, and pressing the inner ring pressing ring;

6. rotating the inner ring assembly to enable the position of a welding seam to be at the bottom, so that the adjustment and the welding are facilitated;

7. after proper adjustment, manually performing spot welding;

8. pressing the loosening button to separate the inner ring from the lining pipe and make the lining pipe fall onto the transverse roller;

9. manually pushing the liner tube to move;

10. repeating the steps 5-9 to finish multiple spot welding;

11. after spot welding is completed, the liner is lifted away from the equipment.

The present invention is described in detail with reference to the above embodiments, and those skilled in the art will understand that: modifications and equivalents may be made to the embodiments of the utility model without departing from the spirit and scope of the utility model, which is to be covered by the claims.

Claims (6)

1. The utility model provides a frock that is used for bushing pipe group in heavy-calibre to spot welding which characterized in that: the device comprises a rotating base (8), a rotating power system (5), a rotating inner ring assembly (1) and an axial moving system (7);

the rotary base (8) provides support for the whole tool, and the rotary power system (5) provides a power supply for the whole tool; the rotary inner ring assembly (1) comprises a hydraulic pressing disc (2) and rotary inner ring rollers (9), two groups of rotary inner ring rollers (9) are arranged on a rotary base (8) in parallel and driven by a rolling driving motor, and the rolling driving motor is powered by a rotary power system (5);

an inner ring (10) formed by connecting two annular rolling rings is supported on the rotating base (8) through a rotating inner ring roller (9), and the inner ring (10) can roll under the driving of the rotating inner ring roller (9); the hydraulic pressure pressing disc (2) is of an annular structure consisting of a right pressing disc (11), a left pressing disc (12) and a lower pressing disc (13), the annular structure is installed in the inner ring (10) and is concentrically arranged with the inner ring (10), the lower pressing disc (13) is fixed on the inner ring (10) through two supporting seats (14), the lower ends of the right pressing disc (11) and the left pressing disc (12) are respectively connected with the lower pressing disc (13) through a hinge shaft (15), the upper ends of the right pressing disc (11) and the left pressing disc (12) are respectively hinged with one end of a pressing oil cylinder (16), and the upper ends of the right pressing disc (11) and the left pressing disc (12) are tightly matched through the pressing oil cylinder (16) to form an annular structure after the right pressing disc (11), the left pressing disc (12) and the lower pressing disc (13) are tightly matched;

the axial movement system (7) comprises two axial movement rollers (6) which are arranged on a rotating base (8) side by side, the axial movement rollers (6) are located on one axial side of an inner ring (10) and are as high as the inner wall of the hydraulic pressing disc (2), and an axial driving motor is utilized to drive the axial movement rollers (6) to rotate so as to enable the spliced and assembled pipes to move axially.

2. The tool for spot welding of the large-caliber lining pipe group according to claim 1, is characterized in that: the inner ring positioning devices (4) are respectively arranged on two axial sides of the inner ring (10), each inner ring positioning device (4) comprises an inverted L-shaped pressure rod (18) which is arranged on the rotating base (8) and is positioned at the front end and the rear end of the inner ring (10) and a pulley which is arranged at the end part of the pressure rod (18) and is abutted against the inner ring (10), and when the inner ring (10) rolls, the pulley is pressed on the front end surface and the rear end surface of the inner ring (10) to limit the axial displacement of the inner ring.

3. The tool for spot welding of the large-caliber lining pipe group according to claim 2, is characterized in that: the right pressing plate (11), the left pressing plate (12) and the lower pressing plate (13) are composed of two arc plates arranged in parallel on two sides, and the arc plates on the two sides are fixed by a plurality of pull rods (17) in a traction mode.

4. The tool for spot welding of the large-caliber lining pipe pair as claimed in claim 1, 2 or 3, wherein: two axial displacement gyro wheels (6) that set up side by side pass through the support mounting on rotating base (8), and the support passes through the bolt structure and links to each other with rotating base (8), through adjusting bolt length adjustment axial displacement gyro wheel (6) height.

5. The tool for spot welding of the large-caliber lining pipe group according to claim 4, is characterized in that: the device comprises a control system, wherein the control system comprises a PLC (programmable logic controller), and the PLC respectively controls a compression oil cylinder (16), a rolling driving motor and an axial driving motor.

6. The tool for spot welding of the large-caliber lining pipe group according to claim 4, is characterized in that: the rotary power system (5) adopts a three-phase four-wire system AC380V and a 50HZ power supply.

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