CN219130441U

CN219130441U - Processing equipment of special-shaped steel pipe

Info

Publication number: CN219130441U
Application number: CN202223194714.XU
Authority: CN
Inventors: 刘玉海
Original assignee: Shanghai Cangji Industrial Co ltd
Current assignee: Shanghai Cangji Industrial Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-06
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses processing equipment for special-shaped steel pipes, and relates to the field of machining equipment. The device comprises a plurality of sets of rollers arranged along the moving direction of a raw material pipe, wherein each set of rollers consists of a plurality of rollers, and the rollers are distributed along the circumferential direction of the raw material pipe; the shape, the size and the interval between the rollers of each set are different, a mandrel mould is arranged in the middle of the rollers of the plurality of sets, the mandrel mould is of a multi-stage structure, the shape and the size of the outer contour of each stage of the mandrel mould are different, and each stage corresponds to one set of roller; according to the moving direction of the raw material pipe, a high-frequency heater is arranged in front of the plurality of sets of rollers. Compared with the prior art, the special-shaped groove is formed by matching the components, so that the processing flow is greatly reduced, the processing cost is greatly reduced, the depth and the width of the processed special-shaped groove can be adjusted by changing the distance between the rollers, and the special-shaped groove is suitable for processing special-shaped equal-diameter steel pipes with different pipe diameters without replacing all equipment.

Description

Processing equipment of special-shaped steel pipe

Technical Field

The utility model discloses processing equipment for special-shaped steel pipes, and relates to the field of machining equipment.

Background

The existing special-shaped steel pipe is processed by a cold drawing method at most, and six working procedures of annealing, acid washing, cold drawing, tempering, straightening and cutting are usually carried out.

As in the chinese patent of publication No. CN107626766a, a rolling manufacturing method of a special-shaped seamless steel tube is disclosed, which directly uses cold rolling to realize manufacturing of the special-shaped seamless steel tube, specifically comprising the following process steps: raw material, roll straightening, flaw detection, cold rolling pretreatment, cold rolling, heat treatment, straightening, marking and warehousing.

The defects of the prior art are as follows:

1. the processing procedures are more, and the rate of the processing molding waste is high;

2. excessive procedures result in high processing cost;

3. the corresponding model is needed for each size, and the die cost is high;

4. the surface of the cold drawing process is easy to be damaged.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing processing equipment for special-shaped steel pipes.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a processing device of a special-shaped steel pipe comprises a plurality of sets of rollers arranged along the moving direction of a raw material pipe, wherein each set of rollers consists of a plurality of rollers, and the rollers are distributed along the circumferential direction of the raw material pipe; the shape, the size and the interval between the rollers of each set are different, a mandrel mould is arranged in the middle of the rollers of the plurality of sets, the mandrel mould is of a multi-stage structure, the shape and the size of the outer contour of each stage of the mandrel mould are different, and each stage corresponds to one set of roller; according to the moving direction of the raw material pipe, a high-frequency heater is arranged in front of the plurality of sets of rollers.

Further, the plurality of sets of rollers comprise a roller group I, a roller group II, a roller group III and a roller group IV;

the first roller group consists of four first rollers, and the outer diameter surfaces of the first rollers are arc-shaped;

the second roller group consists of four second rollers, a circle of V-shaped grooves are formed in the periphery of each second roller, a circle of inverted V-shaped bulges are formed in the middle of each V-shaped groove, and the tops of the bulges are arc-shaped;

the third roller group consists of four third rollers, the outer diameter surface of each third roller is cylindrical, a circle of inverted V-shaped bulges are arranged in the middle of each third roller, and the tops of the bulges are arc-shaped;

the fourth roller group consists of four fourth rollers, a circle of V-shaped grooves are formed in the periphery of the fourth rollers, and a circle of arched bulges are arranged in the middle of the V-shaped grooves;

the roller group five consists of four fifth rollers, and a circle of trapezoid grooves are formed in the periphery of the fourth rollers.

Further, a frame body and a roller support are arranged, one roller support is arranged corresponding to each roller, and the rollers are adjustably arranged on the frame body through the roller support.

Further, the roller support is provided with a kidney-shaped rod, the frame body is provided with a corresponding kidney-shaped hole, the kidney-shaped rod is provided with two planes which are arranged in parallel, the roller support can be prevented from rotating through the cooperation of the planes and the kidney-shaped hole, the kidney-shaped rod is provided with two symmetrically arranged cambered surfaces, threads are arranged on the cambered surfaces, the kidney-shaped rod is provided with two nuts, one nut is abutted against the upper end face of the kidney-shaped hole, the other nut is abutted against the lower end face of the kidney-shaped hole, and the kidney-shaped rod is fixed on the roller support through the cooperation of the two nuts.

Further, a reaming rod is arranged on the roller support corresponding to the fifth roller, and extends towards the direction opposite to the moving direction of the raw material pipe.

Further, a screw rod is arranged corresponding to the mandrel mould, and the mandrel mould is arranged on the screw rod.

Further, according to the moving direction of the raw material pipe, a driving wheel set for driving the raw material pipe to move is arranged in front of the high-frequency heater.

The beneficial effects are that:

the steel pipe is preheated before extrusion, so that the processing difficulty of the steel pipe is reduced, and the processing flow is reduced;

the interval of each roller group is gradually reduced, the rolling material is deformed to reduce the resistance, so that the required driving force is smaller, and the deformation is more moderate; because the driving force is reduced, more driving modes can be selected, and besides the driving wheel set arranged at the front end, the driving mode can also be selected to be directly driven by a roller wheel and the like;

the mandrel mould is matched with the 5 sets of rollers internally and externally, and the accuracy of deformation is controlled, so that the accuracy of deformed materials is higher;

the processing procedures are reduced, repeated heat treatment and acid washing are not needed, and the environmental pollution and the processing cost are reduced;

the processing efficiency is higher;

the processing of steel pipes with different diameters can be satisfied;

by heating, forming and shaping, mechanical damage of cold drawing is not easy to occur.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

FIG. 3 is a schematic diagram showing the cooperation of the roller bracket and the roller according to the present utility model;

FIG. 4 is a perspective view showing the fit between 5 rollers and a raw material pipe;

FIG. 5 is a schematic top view showing the fit of 5 rollers and a raw material pipe;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5, showing the engagement of the roller set I, the feedstock pipe, and the mandrel die;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 5, showing the mating of the second roller set, the feed tube, and the mandrel mold;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 5, showing the engagement of the roller set III, the feed tube, and the mandrel mold;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 5, showing the mating of the fourth roller set, the feedstock tube, and the mandrel mold;

FIG. 10 is a cross-sectional view taken along line E-E of FIG. 5, showing the mating of the roller set five, the raw tube, the mandrel mold, and the reamer spindle;

FIG. 11 is a schematic view of the mandrel mold;

fig. 12 is a schematic structural view of a fifth roller and a roller bracket corresponding to the fifth roller;

reference numerals illustrate: the device comprises a first roller 1, a second roller 2, a third roller 3, a fourth roller 4, a fifth roller 5, a mandrel mould 6, a raw material pipe 7, a roller bracket 8, a kidney-shaped rod 81, an arc 812, a bracket body 9, a reaming rod 10, a driving wheel set 110, a high-frequency heater 120 and a screw rod 130.

Detailed Description

The utility model is further described below with reference to the drawings and specific examples. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

The utility model discloses processing equipment for special-shaped steel pipes, which is shown by referring to figures 1, 2 and 3 and comprises 5 sets of rollers arranged along the moving direction of a raw material pipe 7, wherein each set of rollers is provided with four rollers, and the four rollers are distributed along the circumferential direction of the raw material pipe 7. The shape, size and interval between 5 sets of rollers are different. The first roller group consists of four first rollers 1, and the outer diameter surface of each first roller 1 is arc-shaped (refer to fig. 4 and 6). The second roller group consists of four second rollers 2, a circle of V-shaped grooves are formed in the periphery of the second rollers 2, a circle of inverted V-shaped bulges are formed in the middle of the V-shaped grooves, and the tops of the bulges are arc-shaped (refer to fig. 4 and 7). The third roller group consists of four third rollers 3, the outer diameter surface of each third roller 3 is cylindrical, a circle of inverted V-shaped bulges are arranged in the middle, and the tops of the bulges are arc-shaped (refer to fig. 4 and 8). The fourth roller group is composed of four fourth rollers 4, a circle of V-shaped grooves are formed in the periphery of the fourth rollers 4, and a circle of arched bulges are formed in the middle of the V-shaped grooves (refer to fig. 4 and 9). The roller group five is composed of four fifth rollers 5, and a circle of trapezoidal grooves are formed on the periphery of the fourth roller 4 (see fig. 4 and 10).

The mandrel mould 6 is arranged in the middle of the 5 sets of rollers, the mandrel mould 6 is of a multi-stage structure, the shape and the size of the outer contour of each stage are different, and the mandrel mould corresponds to the 5 sets of rollers (refer to fig. 6-11). According to the moving direction of the raw material pipe 7, a high-frequency heater 120 (refer to fig. 2) is arranged before 5 sets of rollers, the raw material pipe 7 moves along the axial direction in the processing step, the high-frequency heater 120 is used for heating the raw material pipe 7 before extrusion, and finally, extrusion of the raw material pipe 7 is completed through extrusion of 5 sets of rollers and a mandrel mould 6. Compared with the prior art, the special-shaped steel tube forming machine has the advantages that through the matching of the components, the raw material tube 7 is rolled into the needed special-shaped steel tube through the roller after being heated, the process that multiple processing is needed for conventional cold drawing processing of the special-shaped steel tube is reduced, the processing forming rate is improved, the processing is performed once, the processing flow is greatly reduced, the processing cost is greatly reduced, the depth and the width of the processed special-shaped groove can be adjusted through changing the distance between the roller and the roller, and the special-shaped steel tube forming machine is suitable for processing special-shaped equal-diameter steel tubes with different tube diameters without replacing all equipment again.

Specifically, as shown in fig. 1, 2 and 3, the 5 sets of rollers are fixed on a frame 9 through roller brackets 8, and the roller brackets 8 can move on the frame 9, so that the distance between the rollers can be adjusted. The roller support 8 is provided with a kidney-shaped rod 81, the frame 9 is provided with a corresponding kidney-shaped hole, the kidney-shaped rod 81 is provided with two planes 811 which are arranged in parallel, the roller support 8 can be prevented from rotating through the cooperation of the planes 811 and the kidney-shaped holes, meanwhile, the kidney-shaped rod 81 is provided with two symmetrically arranged cambered surfaces 812, threads are arranged on the cambered surfaces 812, the kidney-shaped rod 81 is provided with two nuts, one nut is abutted against the upper end face of the kidney-shaped hole, the other nut is abutted against the lower end face of the kidney-shaped hole, the kidney-shaped rod 81 is fixed on the roller support 8 through the cooperation of the two nuts, and the distance between rollers can be adjusted by loosening the nuts, so that the roller support is very convenient.

Referring to fig. 12, the roller holder 8 corresponding to the fifth roller 5 has a single reamer bar 10, and the reamer bar 10 extends in a direction opposite to the moving direction of the raw material pipe 7. The reaming rod 10 is used for completing pipe reaming operation on a pipe groove, so that the required groove channel precision is higher, and the deformation R angle is smaller.

Referring to fig. 1, it can be further seen that a screw rod 130 is provided corresponding to the mandrel mould 6, and the screw rod 130 can fix the mandrel mould 6 and adjust the relative positions of the

mandrel mould

6 and 5 sets of rollers, so that the multistage outer contour of the mandrel mould 6 corresponds to 5 sets of rollers respectively.

Referring to fig. 1, it can also be seen that, according to the moving direction of the raw material pipe 7, there is a driving wheel set 110 in front of the high frequency heater 120, and the driving wheel set 110 can be driven by a motor to rotate each driving wheel, so that the raw material pipe 7 is driven to move by friction force. Of course, instead of driving the wheel set 110, power may be added to the 5 sets of rollers, and the rollers directly drive the raw material pipe 7 to move.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a processing equipment of dysmorphism steel pipe which characterized in that: the device comprises a plurality of sets of rollers arranged along the moving direction of a raw material pipe (7), wherein each set of rollers consists of a plurality of rollers, and the rollers are distributed along the circumferential direction of the raw material pipe (7); the shape, the size and the interval between the rollers of each set are different, a mandrel mould (6) is arranged in the middle of the rollers of the plurality of sets, the mandrel mould (6) is of a multi-stage structure, the shape and the size of the outer contour of each stage of the mandrel mould (6) are different, and each stage corresponds to one set of roller; according to the moving direction of the raw material pipe (7), a high-frequency heater (120) is arranged in front of the plurality of sets of rollers.

2. A processing apparatus for a profiled steel pipe as claimed in claim 1, characterized in that: the multiple sets of rollers comprise a roller group I, a roller group II, a roller group III and a roller group IV;

the first roller group consists of four first rollers (1), and the outer diameter surface of each first roller (1) is arc-shaped;

the second roller group consists of four second rollers (2), a circle of V-shaped grooves are formed in the periphery of the second rollers (2), a circle of inverted V-shaped bulges are formed in the middle of the V-shaped grooves, and the tops of the bulges are arc-shaped;

the third roller group consists of four third rollers (3), the outer diameter surface of each third roller (3) is cylindrical, a circle of inverted V-shaped bulges are arranged in the middle, and the tops of the bulges are arc-shaped;

the fourth roller group consists of four fourth rollers (4), a circle of V-shaped grooves are formed in the periphery of the fourth rollers (4), and a circle of arched bulges are arranged in the middle of the V-shaped grooves;

the roller group five is composed of four fifth rollers (5), and a circle of trapezoid grooves are formed in the periphery of the fourth rollers (4).

3. A processing apparatus for a profiled steel pipe as claimed in claim 2, characterized in that: the roller is provided with a frame body (9) and a roller support (8), wherein the roller support (8) is provided with one roller corresponding to each roller, and the rollers are adjustably arranged on the frame body (9) through the roller support (8).

4. A processing apparatus for a profiled steel pipe as claimed in claim 3, characterized in that: the roller support (8) is provided with a kidney-shaped rod (81), the frame body (9) is provided with a corresponding kidney-shaped hole, the kidney-shaped rod (81) is provided with two planes (811) which are arranged in parallel, the roller support (8) can be prevented from rotating through the matching of the planes (811) and the kidney-shaped hole, the kidney-shaped rod (81) is provided with two symmetrically arranged cambered surfaces (812), threads are arranged on the cambered surfaces (812), the kidney-shaped rod (81) is provided with two nuts, one nut is abutted against the upper end face of the kidney-shaped hole, the other nut is abutted against the lower end face of the kidney-shaped hole, and the kidney-shaped rod (81) is fixed on the roller support (8) through the matching of the two nuts.

5. A processing apparatus for a profiled steel pipe as claimed in claim 4, characterized in that: a reaming rod (10) is arranged on the roller bracket (8) corresponding to the fifth roller (5), and the reaming rod (10) extends towards the direction opposite to the moving direction of the raw material pipe (7).

6. A processing apparatus for a profiled steel pipe as claimed in claim 1, characterized in that: a screw rod (130) is arranged corresponding to the mandrel mould (6), and the mandrel mould (6) is arranged on the screw rod (130).

7. A processing apparatus for a profiled steel pipe as claimed in claim 1, characterized in that: according to the moving direction of the raw material pipe (7), a driving wheel group (110) for driving the raw material pipe (7) to move is arranged in front of the high-frequency heater (120).