Automatic pipe blank centering machine with precise positioning structure

Abstract

The utility model discloses an automatic pipe blank centering machine with a precise positioning structure, which relates to the technical field of centering machines and comprises a conveying frame and a motor, a threaded screw rod is mounted at the output end of the motor, a sliding ring is mounted at the output end of the threaded screw rod, a precise plate is mounted on the outer wall of the sliding ring, a model ruler is mounted on the outer wall of the conveying frame, and a positioning plate is mounted on the model ruler. An electric sliding rail is installed on the outer wall of the conveying frame, a blocking plate is installed at the output end of the electric sliding rail, and a blocking block is installed at the output end of a blocking electric rod. The precise positioning mechanism is installed, the moving position of the blocking plate is determined according to the model of the pipe blank and data on the standard model ruler, the motor works to drive the precise plates to be recycled, the precise plates are attached to the blocking block, and then the distance between the two precise plates is the walking route of the pipe blank. And the situation that the pipe blank cannot be aligned due to position deviation during transportation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of centering machine, concretely to a pipe blank automatic centering machine with accurate positioning structure. BACKGROUND

[0002] Pipe blank automatic centering machine is an indispensable device in the production of seamless steel pipes by pipe rolling mill, which is mainly used for centering operation of pipe blank. The centering of pipe blank refers to drilling or punching holes on the front end face of pipe blank to make the nose of piercing mandrel correctly align with the axis of pipe blank, preventing the pipe from being flattened during piercing. The pipe blank automatic centering machine is a device that can automatically complete this operation. It is widely used in the production of seamless steel pipes in the oil, gas, chemical, and power industries. In these industries, seamless steel pipes are a kind of critical conveying pipeline, and the quality and production efficiency of steel pipes are extremely high. The pipe blank automatic centering machine can provide high-quality seamless steel pipes to meet the needs of these industries.

[0003] Patent document CN217070814U discloses a pipe blank automatic centering machine, which discloses "including adjacent main machine rack and auxiliary machine rack, the top side of main machine rack is provided with vertical linear guide rail, the side of linear guide rail close to auxiliary machine rack is provided with base, the lower side of base is provided with screw elevator installed on main machine rack and pushing base to lift. The side of base close to auxiliary machine rack is provided with servo drilling power head, the table surface of auxiliary machine rack is provided with V-shaped roller way for limiting solid pipe blank, the upper side of V-shaped roller way is provided with pressure cylinder for pressing and positioning solid pipe blank, the table surface of auxiliary machine rack is provided with turnover mechanism below solid pipe blank. The pipe blank automatic centering machine of the utility model is accurate in centering and high in automation efficiency."

[0004] However, the pipe blank automatic centering machine disclosed in the above-mentioned document mainly considers the accuracy of centering and the high automation efficiency of the pipe blank automatic centering machine, which is not convenient for limiting the pipe blank of different models during feeding, so that the top of the pipe blank is always horizontal and straight with the centering shaft group.

[0005] Therefore, it is necessary to study an accurate positioning mechanism, which can be used to limit the pipe blank of different models during feeding, so that the top of the pipe blank is always horizontal and straight with the centering shaft group. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a pipe blank automatic centering machine with accurate positioning structure to solve the technical problem of providing the pipe blank automatic centering machine with accurate positioning function as mentioned in the background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A kind of automatic centering machine of pipe blank with accurate positioning structure, comprising: conveying frame, the inner wall of the conveying frame is equipped with accurate positioning mechanism, the accurate positioning mechanism is used to limit when feeding to different models of pipe blank, so that the top of pipe blank is always horizontal straight line with centering axle group;

[0008] Accurate positioning mechanism includes motor, the motor is arranged in the inside of conveying frame, the output end of the motor is equipped with screw rod, the output end of the screw rod is equipped with slip ring, the inner wall of the conveying frame is equipped with limit rod, and the limit rod extends to the inside of slip ring, the outer wall of the slip ring is equipped with accurate plate, the outer wall of the conveying frame is equipped with model ruler, the outer wall of the conveying frame is equipped with electric sliding rail, the output end of the electric sliding rail is equipped with baffle, the top of the baffle is equipped with alignment block, the outer wall of the baffle is embedded with blocking electric pole, the output end of the blocking electric pole is equipped with blocking block.

[0009] Preferably, the inner wall of the conveying frame is equipped with transmission shaft, the outer wall of the conveying frame is equipped with positioning frame, the outer wall of the positioning frame is equipped with positioning electric pole, the output end of the positioning electric pole is equipped with positioning block, the inner wall of the positioning frame is equipped with bearing block, the outer wall of the positioning frame is equipped with mounting seat, the outer wall of the mounting seat is equipped with centering axle group.

[0010] Preferably, the inner wall of the positioning frame is equipped with cooling mechanism, and the cooling mechanism is used to cool the pipe blank after processing quickly.

[0011] Preferably, the cooling mechanism includes cooling tank, and the cooling tank is arranged on the outer wall of the positioning block.

[0012] Preferably, the inner wall of the cooling tank is equipped with cooling nozzle.

[0013] Preferably, the bottom of the bearing block is equipped with drain pipe.

[0014] Preferably, the outer wall of the bearing block is equipped with angle motor, and the output end of the angle motor is equipped with angle plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1.The utility model provides a precision positioning mechanism is installed for the pipe blank of different models is positioned in the feeding, makes the top of pipe blank always with the centering axle group is horizontal straight line, the pipe blank of prior art may occur position deviation in the conveying frame in the feeding, and the top of pipe blank cannot with the centering axle group is horizontal straight line, therefore needs to improve, first motor work drives screw rod rotation, slip ring removes and drives precision plate to remove to two sets of precision plate adhesion, subsequently according to the model of pipe blank, electric sliding rail work drives the movement of baffle, then aligns the data on the model ruler through the alignment block, and then determines the position of the movement of baffle, subsequently the work of blocking electric pole drives the movement of blocking block, subsequently motor is servo motor, then motor work drives precision plate to recycle, then makes precision plate and blocking block adhesion, and then the distance of two sets of precision plate is the route of pipe blank, and the pipe blank is positioned, avoids the situation that the pipe blank cannot be aligned due to position deviation during transportation;

[0017] 2.The utility model discloses a cooling mechanism is installed, and the pipe blank after processing is cooled and is fast plastic, and the pipe blank can have certain heat after processing, and the deformation condition of easily appearing is caused, and the pipe blank is cooled, and the pipe blank is fast plastic, first cooling nozzle is cooled to the top of pipe blank, and then angle motor work drives angle dense board rotation inclination, and then cooling liquid will enter the inside of positioning block, and according to the demand, the cooling water in the inside is discharged through the drain pipe, and then the pipe blank is avoided due to overheating and leads to the deformation condition of later period. ACCURACY

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the front structure schematic diagram of the utility model;

[0020] Figure 3 It is the conveying frame overhead portion structure schematic diagram of the utility model;

[0021] Figure 4 It is the positioning frame portion structure schematic diagram of the utility model;

[0022] Figure 5 It is the positioning block whole structure schematic diagram of the utility model;

[0023] Figure 6 It is the angle dense board portion structure schematic diagram of the utility model.

[0024] In the figure: 1, conveying frame; 2, conveying shaft; 3, positioning frame; 4, positioning electric pole; 5, positioning block; 6, bearing block; 7, mounting seat; 8, centering shaft group; 9, motor; 10, threaded screw rod; 11, slip ring; 12, limiting rod; 13, precision plate; 14, model ruler; 15, electric sliding rail; 16, blocking plate; 17, aligning block; 18, blocking electric pole; 19, blocking block; 20, cooling groove; 21, cooling nozzle; 22, drain pipe; 23, angle motor; 24, angle plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Please refer to Figure 1 and Figure 2The utility model provides a kind of pipe blank automatic centering machine with accurate positioning structure, including: conveying frame 1, the inner wall of conveying frame 1 is equipped with transmission shaft 2, the outer wall of conveying frame 1 is equipped with positioning frame 3, the outer wall of positioning frame 3 is equipped with positioning electric pole 4, the output end of positioning electric pole 4 is equipped with positioning block 5, the inner wall of positioning frame 3 is equipped with bearing block 6, the outer wall of positioning frame 3 is equipped with mounting seat 7, the outer wall of mounting seat 7 is equipped with centering axle group 8, pipe blank is transported by transmission shaft 2 in conveying frame 1, then when the top of pipe blank is transported to positioning frame 3, positioning electric pole 4 works and drives positioning block 5 to move to fix the top of pipe blank, then centering axle group 8 is drilled to the top of pipe blank.

[0029] Please refer to Figure 2 and Figure 3 The inner wall of conveying frame 1 is equipped with accurate positioning mechanism, accurate positioning mechanism is used for limiting when feeding to different models of pipe blank, so that the top of pipe blank is always horizontal straight line with centering axle group 8, accurate positioning mechanism includes motor 9, motor 9 is arranged in the inside of conveying frame 1, the output end of motor 9 is equipped with screw lead 10, the output end of screw lead 10 is equipped with sliding ring 11, the inner wall of conveying frame 1 is equipped with limiting rod 12, and one end of limiting rod 12 extends to the inside of sliding ring 11, the outer wall of sliding ring 11 is equipped with accurate plate 13, the outer wall of conveying frame 1 is equipped with model ruler 14, the outer wall of conveying frame 1 is equipped with electric sliding rail 15, the output end of electric sliding rail 15 is equipped with blocking plate 16, the top of blocking plate 16 is equipped with alignment block 17, blocking plate 16 is inlaid on the outer wall and is equipped with blocking electric pole 18, the output end of blocking electric pole 18 is equipped with blocking block 19, the top of pipe blank may be offset in conveying frame 1 when feeding, so that the top of pipe blank cannot be horizontal straight line with centering axle group 8, so this needs to be improved, first, motor 9 works and drives screw lead 10 to rotate, sliding ring 11 moves and drives accurate plate 13 to move to two sets of accurate plate 13 adhere, then according to the model of pipe blank, electric sliding rail 15 works and drives blocking plate 16 to move, then aligns the data on model ruler 14 through alignment block 17, to determine the position of the movement of blocking plate 16, then blocking electric pole 18 works and drives blocking block 19 to move, then motor 9 is servo motor, then motor 9 works and drives accurate plate 13 to recycle, so that accurate plate 13 adheres to blocking block 19, so the distance between the two sets of accurate plate 13 is the route of pipe blank, to limit pipe blank, avoid the situation that pipe blank cannot be aligned due to position offset when transporting.

[0030] Please refer to Figure 4 , Figure 5 and Figure 6The inner wall of the positioning frame 3 is provided with a cooling mechanism, which is used for cooling the processed pipe blank to quickly plasticize. The cooling mechanism comprises a cooling groove 20 arranged on the outer wall of the positioning block 5. The inner wall of the cooling groove 20 is provided with a cooling nozzle 21. The bottom of the bearing block 6 is provided with a drain pipe 22. The outer wall of the bearing block 6 is provided with an angle motor 23. The output end of the angle motor 23 is provided with an angle plate 24. After the pipe blank is processed, there may be a certain amount of heat on the pipe blank, which may cause deformation. Therefore, the pipe blank needs to be cooled to quickly plasticize. First, the cooling nozzle 21 cools the top of the pipe blank. Then, the angle motor 23 works to drive the angle plate 24 to rotate and tilt 45 degrees. Then, the cooling liquid enters the inside of the positioning block 5. According to the requirement, the cooling water in the inside is discharged through the drain pipe 22, so as to avoid the pipe blank from being deformed due to overheating.

[0031] Working principle, the pipe blank is conveyed through the conveying shaft 2 in the conveying frame 1, then when the top of the pipe blank is conveyed into the positioning frame 3, the positioning rod 4 works to drive the positioning block 5 to move and fix the top of the pipe blank, then the centering shaft group 8 drills holes in the top of the pipe blank. The existing pipe blank may be offset in the conveying frame 1 during feeding, which may cause the top of the pipe blank to be unable to be horizontal with the centering shaft group 8. Therefore, it needs to be improved. First, the motor 9 works to drive the threaded lead screw 10 to rotate. The slip ring 11 moves to drive the precision plate 13 to move to be attached to the two sets of precision plates 13. Then, according to the model of the pipe blank, the electric sliding rail 15 works to drive the blocking plate 16 to move. Then, the data on the model ruler 14 is aligned through the alignment block 17, so as to determine the position of the movement of the blocking plate 16. Then, the blocking rod 18 works to drive the blocking block 19 to move. Then, the motor 9 is a servo motor. The motor 9 works to drive the precision plate 13 to be recycled. Then, the precision plate 13 is attached to the blocking block 19. Then, the distance between the two sets of precision plates 13 is the route of the pipe blank. Then, the pipe blank is limited to avoid the pipe blank from being offset during transportation and causing misalignment. After the pipe blank is processed, there may be a certain amount of heat on the pipe blank, which may cause deformation. Therefore, the pipe blank needs to be cooled to quickly plasticize. First, the cooling nozzle 21 cools the top of the pipe blank. Then, the angle motor 23 works to drive the angle plate 24 to rotate and tilt 45 degrees. Then, the cooling liquid enters the inside of the positioning block 5. According to the requirement, the cooling water in the inside is discharged through the drain pipe 22, so as to avoid the pipe blank from being deformed due to overheating.

[0032] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A tube blank automatic centering machine with precision positioning structure, characterized in that, The utility model provides a kind of pipe blank conveying device, including: conveying frame (1), the inner wall of conveying frame (1) is equipped with precision positioning mechanism, precision positioning mechanism is used to limit when feeding the pipe blank of different models, so that the top of pipe blank is always horizontal straight line with centering axle group (8); The precision positioning mechanism includes a motor (9) disposed inside the conveying frame (1), a threaded lead screw (10) mounted to the output of the motor (9), a sliding ring (11) mounted to the output of the threaded lead screw (10), a limiting rod (12) mounted to the inner wall of the conveying frame (1) with one end extending into the sliding ring (11), a precision plate (13) mounted to the outer wall of the sliding ring (11), a model ruler (14) mounted to the outer wall of the conveying frame (1), an electric sliding rail (15) mounted to the outer wall of the conveying frame (1), a blocking plate (16) mounted to the output of the electric sliding rail (15), a square block (17) mounted to the top of the blocking plate (16), a blocking electric rod (18) inlaid mounted to the outer wall of the blocking plate (16), and a blocking block (19) mounted to the output of the blocking electric rod (18).

2. The automatic centering machine for pipe blank with precise positioning structure according to claim 1, characterized in that: The inner wall of the conveying frame (1) is provided with a transmission shaft (2), the outer wall of the conveying frame (1) is provided with a positioning frame (3), the outer wall of the positioning frame (3) is provided with a positioning electric rod (4), the output end of the positioning electric rod (4) is provided with a positioning block (5), the inner wall of the positioning frame (3) is provided with a bearing block (6), the outer wall of the positioning frame (3) is provided with a mounting seat (7), and the outer wall of the mounting seat (7) is provided with a centering axle group (8).

3. The automatic centering machine with precise positioning structure for pipe blank according to claim 2, characterized in that: The inner wall of the positioning frame (3) is provided with a cooling mechanism for cooling the processed pipe blank quickly.

4. The automatic centering machine with precision positioning structure for pipe blank according to claim 3, characterized in that: The cooling mechanism includes a cooling tank (20) disposed on the outer wall of the positioning block (5).

5. The automatic centering machine for pipe billets with precision positioning according to claim 4, characterized in that: The inner wall of the cooling tank (20) is provided with a cooling nozzle (21).

6. The automatic centering machine for pipe blank with precise positioning structure according to claim 2, characterized in that: The bottom of the bearing block (6) is provided with a drain pipe (22).

7. The automatic centering machine for pipe billets with precision positioning according to claim 2, characterized in that: The outer wall of the bearing block (6) is provided with an angle motor (23), and the output end of the angle motor (23) is provided with an angle sealing plate (24).

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