CN210435100U - Hydraulic boosting roller set sliding plate device for pipe welding-before-bending pipe bender - Google Patents

Abstract

The utility model discloses a hydraulic boosting roller train sliding plate device for a pipe welding-before-bending pipe bender, which comprises a sliding plate frame, wherein a hydraulic oil cylinder is fixed on the sliding plate frame; the roller carrier is connected to the sliding plate frame in a sliding manner through a limiting sliding block; the hydraulic oil cylinder is connected with the sliding roller frame and can push the roller frame to slide; a roller shaft is vertically fixed on the roller frame, and a roller is arranged on the roller shaft; the utility model reduces the friction force on the surface of the pipe through the roller, and can effectively slow down the extension and the thinning rate; the elastic-plastic deformation during bending of 0-25 degrees can be better relieved by the forward movement of the roller carrier.

Description

Hydraulic boosting roller set sliding plate device for pipe welding-before-bending pipe bender

Technical Field

The invention relates to the field of pipe bending processing, in particular to a hydraulic boosting roller set sliding plate device for a pipe welding-before-bending pipe bender.

Background

At present, the technology of welding before bending a pipe in China is basically in a blank state, and domestic pipe processing enterprises all use the traditional technology of welding before bending the pipe to process the pipe. The processing technology of the flange which is bent before welding has the characteristics of pipe waste, low assembly efficiency, poor welding quality and the like, and is one of the main reasons for limiting domestic pipe fitting processing enterprises to be incapable of improving the production efficiency.

The traditional pipe bender generally uses a boosting sliding plate structure for limiting the pipe during the bending processing of the pipe, and ensures that the pipe at the rear section of the bending is straight. However, the structure exerts great friction force on the pipe in the bending process of the pipe, seriously influences the bending parameters of the pipe, causes the change to be in an irregular state, and is difficult to perform accurate calculation and blanking without allowance after welding the pipe; the bending extension and the pipe wall thinning of the pipe are increased; meanwhile, the requirement on the length of the last straight pipe section of the bent pipe is higher, and the processing adaptability of the pipe bending machine after welding is reduced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a hydraulic boosting roller set sliding plate device for a pipe welding-before-bending pipe bender, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a pipe welds the hydraulic pressure boosting roller train slide device for the bend pipe bender after, includes:

the hydraulic oil cylinder is fixed on the sliding plate frame;

the roller carrier is connected to the sliding plate frame in a sliding manner through a limiting sliding block; the hydraulic oil cylinder is connected with the sliding roller frame and can push the roller frame to slide; and a roller shaft is vertically fixed on the roller frame, and a roller is arranged on the roller shaft.

Preferably, the number of the roller shafts and the number of the rollers are two, and the arrangement direction of the two roller shafts is parallel to the slidable direction of the roller frame.

Preferably, the device further comprises a leading block fixed on the roller frame, and the leading block and the roller are arranged side by side along the slidable direction of the roller frame.

Preferably, the side surface of the roller is a saddle shape concave toward the center of the roller shaft.

Preferably, the front guide block is provided with a groove, and the groove is arranged side by side with the side surface of the roller.

Preferably, the roller frame comprises a first top plate, a first bottom plate and a first side plate, wherein the first top plate and the first bottom plate are horizontally placed, and the first side plate is vertically connected with the edges of the first top plate and the first bottom plate; the roller shaft is vertically fixed between the first top plate and the first bottom plate; the first side plate is connected to the skateboard frame.

Preferably, the sliding plate frame comprises a second top plate and a second bottom plate which are horizontally arranged, and a second side plate which is vertically connected with the edges of the second top plate and the second bottom plate; the second side plate is connected to the roller frame; the hydraulic oil cylinder is fixed above the second top plate.

The invention has the advantages that the simple and effective sliding plate structure is used for replacing the traditional boosting sliding plate structure, the friction force on the pipe in the pipe bending process can be reduced while the pipe at the rear section is ensured to be straight, the influence on the bending parameters of the pipe is weakened, the roundness of the pipe is ensured, and the processing adaptability of the pipe bending machine after the pipe is welded firstly is improved. Particularly, the relative friction between the prior sliding plate and the surface of the pipe is reduced through the rollers, so that the extension and the thinning rate can be effectively reduced; the elastic-plastic deformation during bending of 0-25 degrees can be better relieved by the forward movement of the roller carrier; the trolley for feeding the pipe can move forwards for a long distance because the roller frame can slide forwards along with the bending process, so that the length of the last straight pipe section of the pipe is shortened, and the processing adaptability of the pipe bender after welding the pipe is expanded.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention;

FIG. 2 is a schematic view of the apparatus of the present invention beginning to bend a pipe;

figure 3 is a schematic view of the apparatus of the present invention ending the bending of the tube.

In the figure, the device comprises a sliding plate frame 1, a sliding plate frame 2, a roller frame 3, a front guide block 4, rollers 5, roller shafts 6, a hydraulic oil cylinder 7, a limiting slide block 8, a pipe 9, a rotary tire 10 and a front clamp.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in figure 1, the structure of the roller 4 and the front guide block 3 is adopted to replace the arc-shaped slide plate structure in the traditional boosting slide plate structure. The roller 4 can limit the pipe when the pipe is bent, so that the bending is smoothly carried out, and meanwhile, the roller 4 can slide forwards along the bending direction of the pipe under the assistance of hydraulic pressure in the bending process of the pipe.

Specifically, the device of the invention consists of 7 parts: the device comprises a slide plate frame 1, a roller frame 2, a front guide block 3, a roller 4, a roller shaft 5, a hydraulic oil cylinder 6 and a limiting slide block 7.

A hydraulic oil cylinder 6 is fixed on the slide plate frame 1;

the roller carrier 2 is connected with the sliding plate frame 1 in a sliding way through a limiting sliding block 7; the hydraulic oil cylinder 6 is connected with the sliding roller frame 2 and can push the roller frame 2 to slide; a roller shaft 5 is vertically fixed on the roller frame 2, and a roller 4 is arranged on the roller shaft 5.

The roller shafts 5 and the rollers 4 are arranged in two (forming a roller group, or more than two roller groups), and the arrangement direction of the two roller shafts 5 is parallel to the slidable direction of the roller frame 2. The front guide block 3 and the roller 4 are arranged side by side along the slidable direction of the roller frame 2; the side surface of the roller 4 is a saddle shape concave towards the center of the roller shaft 5; the leading block 3 is provided with a groove which is arranged side by side with the side surface of the roller 4.

The roller frame 2 comprises a first top plate, a first bottom plate and a first side plate, wherein the first top plate and the first bottom plate are horizontally arranged, and the first side plate is vertically connected with the edges of the first top plate and the first bottom plate; the roller shaft 5 is vertically fixed between the first top plate and the first bottom plate; the first side plate is connected to the skateboard frame 1.

The sliding plate frame 1 comprises a second top plate and a second bottom plate which are horizontally arranged, and a second side plate which is vertically connected with the edges of the second top plate and the second bottom plate; the second side plate is connected with the roller frame 2; the hydraulic oil cylinder 6 is fixed above the second top plate.

As shown in fig. 2 and 3, the hydraulic cylinder 6 is started when the pipe is bent, so that the roller frame 2 can slide forward on the slide plate frame 1 along the limiting slide block 7, and the roller frame 2 cannot slide forward too much due to the existence of the limiting slide block 7, so that the roller shaft 5 at the rear end of the roller frame 2 corresponds to the pipe bending starting point when the pipe is bent, the pipe can be well limited when the pipe is bent, and the pipe at the rear bending section can be ensured to be straight.

More specifically, in the operation of first welding the tube and then bending the tube, the tube 8 is placed on the tube bender, the position of the bend start point of the tube 8 is aligned with the center line of the front clamp 10 (the device on the tube bender) and the rotary tire 9, and then the device of the present invention and the front clamp 10 are clamped.

The pipe bender is started to bend the pipe 8, and the front clamp 10 and the rotary tire 9 clamp the head end of the pipe 8 under the action of the main shaft to perform rotary bending movement. The roller carrier 2 slides forwards on the sliding plate frame 1 along the limiting slide block 7 under the boosting of the hydraulic oil cylinder 6, when the center of the roller 4 at the rear end corresponds to the bending starting point of the pipe 8, the roller carrier 2 stops moving forwards, so that the pipe 8 is limited, and the pipe at the bent rear section is ensured to be straight.

After the pipe 8 is bent, the pipe 8 is unloaded, the hydraulic oil cylinder 6 is unloaded, the front clamp 10 and the rotary tire 9 are reset under the action of the main shaft of the pipe bender, the front clamp 10 is pushed back to the initial position in the resetting process, and the operation is finished.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (7)

1. The utility model provides a pipe welds before curved pipe bender hydraulic pressure boosting roller train slide device which characterized in that includes:

the hydraulic oil cylinder is fixed on the sliding plate frame;

the roller carrier is connected to the sliding plate frame in a sliding manner through a limiting sliding block; the hydraulic oil cylinder is connected with the roller frame and can push the roller frame to slide; and a roller shaft is vertically fixed on the roller frame, and a roller is arranged on the roller shaft.

2. The hydraulic boosting roller set sliding plate device for the pipe first welding and then bending machine according to claim 1, wherein two roller shafts and two rollers are arranged, and the arrangement direction of the two roller shafts is parallel to the slidable direction of the roller frame.

3. A hydraulic boosting roller set sliding plate device for a tube weld-before-bend pipe bender according to claim 1 further comprising a leading block fixed to said roller frame, said leading block and said roller being disposed side-by-side in a slidable direction of said roller frame.

4. The hydraulic boosting roller set sliding plate device for the pipe first welding and then bending pipe bender according to claim 1, wherein the side surface of the roller is a saddle shape concave toward the center of the roller shaft.

5. The hydraulic boosting roller set sliding plate device for the pipe weld-before-bend pipe bending machine according to claim 3, wherein the front guide block is provided with a groove, and the groove is arranged side by side with the side surface of the roller.

6. The hydraulic boosting roller set sliding plate device for the pipe weld-before-bend pipe bending machine according to claim 1, wherein the roller frame comprises a first top plate, a first bottom plate and a first side plate, wherein the first top plate and the first bottom plate are horizontally arranged, and the first side plate is vertically connected with the edges of the first top plate and the first bottom plate; the roller shaft is vertically fixed between the first top plate and the first bottom plate; the first side plate is connected to the skateboard frame.

7. The hydraulic boosting roller set sliding plate device for the pipe weld-before-bend pipe bending machine according to claim 1 or 6, wherein the sliding plate frame comprises a second top plate and a second bottom plate which are horizontally placed, and a second side plate which is vertically connected with the edges of the second top plate and the second bottom plate; the second side plate is connected to the roller frame; the hydraulic oil cylinder is fixed above the second top plate.

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