Chuck-free cold-drawing repairing device for precise steel pipe

Abstract

The utility model relates to the technical field of cold-drawing repair, in particular to a precise steel pipe chuck-free cold-drawing repair device which comprises a bottom plate, a first fixing plate is fixedly connected to the upper surface of the bottom plate, a straight groove is formed in the outer wall of the first fixing plate, and a rotating disc is movably installed on the outer wall of the first fixing plate. A straight groove is formed in the outer wall of the rotating disc, an inclined groove is formed in the outer wall of the rotating disc, a first clamping block is arranged on the left side of the first fixing plate, a movable pin is fixedly connected to the outer wall of the first clamping block and penetrates through the straight groove and the inclined groove, a tooth groove is formed in the outer wall of the rotating disc, and a motor is fixedly connected to the side wall of the first fixing plate. The output end of the motor is fixedly connected with a gear, and the gear is meshed with the tooth groove. The steel pipe cold-drawing repair device is reasonable in structure, a steel pipe can be well fixed when cold-drawing repair is carried out, the possibility that the steel pipe is distorted and deformed in the cold-drawing repair process is effectively avoided, and cold-drawing repair is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cold-drawing repair, especially to a precision steel pipe free chuck cold-drawing repair device. BACKGROUND

[0002] With the higher requirements of engineering machinery, ship and petroleum industry on steel pipes, high-precision and high-performance cold-drawing steel pipes begin to be applied in large quantities. When the steel pipes are cold-drawn by using conventional methods, the one end of the steel pipe needs to be fixed by using clamps during cold-drawing, the size of this section of the steel pipe will change after cold-drawing, and the shape will also change, so this section of material will be cut off as waste, causing certain material loss.

[0003] When the applicant applied the utility model, it was found through retrieval that a precision steel pipe free chuck cold-drawing repair device was disclosed in a Chinese patent with the application number CN201720368334.3. The patent mainly discloses that, during cold-drawing repair, no chuck is needed to be made, so the performance of the steel pipe will not be changed, and the repair rate and yield of the steel pipe can be greatly improved. However, the patent does not mention the fixation of the steel pipe. The steel pipe will be subjected to a large force during cold-drawing repair. If the steel pipe is not fixed, it is likely to be twisted and deformed, which is not conducive to the cold-drawing repair. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problems existing in the prior art and provides a precision steel pipe free chuck cold-drawing repair device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a precision steel pipe free chuck cold-drawing repair device, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with a first fixed plate, the outer wall of the first fixed plate is provided with straight grooves, the number of the straight grooves is four, the outer wall of the first fixed plate is movably installed with a rotating disc, the outer wall of the rotating disc is provided with inclined grooves, the number of the inclined grooves is four, the left side of the first fixed plate is provided with a first clamping block, the outer wall of the first clamping block is fixedly connected with a movable pin, the movable pin passes through the straight grooves and the inclined grooves, the outer wall of the rotating disc is provided with gear grooves, the number of the gear grooves is multiple, the side wall of the first fixed plate is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, and the gear is engaged with the gear grooves.

[0006] Further description of the above-mentioned technical scheme:

[0007] The end of the movable pin away from the first clamping block is fixedly connected with a limiting disc, and the limiting disc is located at the right side of the rotating disc.

[0008] Further description of the above-mentioned technical scheme:

[0009] The outer wall of the first fixed plate is provided with a plurality of limiting grooves, and the side wall of the first clamping block is fixedly connected with a limiting pin located in the limiting grooves.

[0010] As a further description of the above technical solution:

[0011] The upper surface of the bottom plate is fixedly connected with a second fixed plate, and the outer wall of the first fixed plate is fixedly connected with a second clamping block.

[0012] As a further description of the above technical solution:

[0013] The upper surface of the second fixed plate is fixedly connected with a top plate, the lower surface of the top plate is fixedly connected with a mounting frame, the inner wall of the mounting frame is movably mounted with a double-threaded screw rod, one end of the double-threaded screw rod is fixedly connected with a twist disc, the outer surface of the double-threaded screw rod is threadedly connected with a moving block, the number of the moving blocks is two, the lower surface of the moving block is movably mounted with a rotating arm, and one end of the rotating arm away from the moving block is movably mounted with a third clamping block.

[0014] As a further description of the above technical solution:

[0015] The second clamping block and the top plate are provided with a steel pipe, the inside of the steel pipe is provided with a pull rod, and one end of the pull rod away from the second fixed plate is fixedly connected with a repair disc.

[0016] As a further description of the above technical solution:

[0017] The left side of the pull rod is provided with a clamping cylinder, and the outer wall of the clamping cylinder is fixedly connected with a moving rod.

[0018] The utility model has the advantages of the following beneficial effects:

[0019] 1、Compared with the prior art, the precision steel pipe chuck-free cold-drawing repair device, through the steel pipe, the motor, the gear, the rotating disc, the chute, the movable pin and the first clamping block, the steel pipe is placed in the appropriate position before being fixed, then the motor is driven to work to drive the gear to rotate, then the rotating disc is counterclockwise rotated, due to the existence of the chute, then the adjacent movable pin and the first clamping block are driven to approach each other, then the four first clamping blocks clamp and fix the steel pipe, the deviation of the steel pipe during cold-drawing repair can be effectively avoided, compared with the existing cold-drawing repair device, the steel pipe will be subjected to great force during cold-drawing repair, and if not fixed, the steel pipe can be twisted and deformed, which is not conducive to the cold-drawing repair, the precision steel pipe chuck-free cold-drawing repair device can fix the steel pipe during cold-drawing repair, and the possibility of twisting and deforming of the steel pipe during cold-drawing repair is effectively avoided, which is conducive to the cold-drawing repair.

[0020] 2、Compared with the prior art, the precision steel pipe free chuck cold-drawing repair device, through the twist disc, the double-threaded screw rod, the moving block, the rotating arm, the third clamping block and the second clamping block, the twist disc is twisted, thereby the double-threaded screw rod can be driven to rotate, thereby the moving block can be driven to approach or move away from each other, when the moving block approaches each other, the rotating arm is deflected, thereby the third clamping block is driven to move downwards, thereby the third clamping block and the second clamping block are cooperated to clamp and fix the end portion of the steel pipe, so that the steel pipe is more stable during machining and is less likely to move. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the precision steel pipe free chuck cold-drawing repair device provided by the utility model;

[0022] Figure 2 It is a whole structure sectional view of the precision steel pipe free chuck cold-drawing repair device provided by the utility model;

[0023] Figure 3 It is a partial structure sectional view of the precision steel pipe free chuck cold-drawing repair device provided by the utility model;

[0024] Figure 4 It is a first clamping block structure diagram of the precision steel pipe free chuck cold-drawing repair device provided by the utility model.

[0025] LEGEND:

[0026] 1, bottom plate; 2, first fixed plate; 3, straight slot; 4, rotating disc; 5, inclined slot; 6, first clamping block; 7, movable pin; 8, limiting disc; 9, gear slot; 10, motor; 11, gear; 12, second fixed plate; 13, second clamping block; 14, top plate; 15, mounting frame; 16, double-threaded screw rod; 17, twist disc; 18, moving block; 19, rotating arm; 20, third clamping block; 21, steel pipe; 22, pull rod; 23, repair disc; 24, clamping cylinder; 25, moving rod; 26, limiting slot; 27, limiting pin. DETAILED DESCRIPTION

[0027] REFERENCE Figures 1-4The utility model provides a kind of precise steel pipe free chuck cold-drawing repair device provided by the utility model: including bottom plate 1, the upper surface of bottom plate 1 is fixedly connected with first fixed plate 2, the outer wall of first fixed plate 2 is equipped with straight groove 3, the number of straight groove 3 is four, the outer wall of first fixed plate 2 is movably installed with turntable 4, the outer wall of turntable 4 is equipped with inclined groove 5, the number of inclined groove 5 is four, the left side of first fixed plate 2 is provided with first clamping block 6, the outer wall of first clamping block 6 is fixedly connected with movable pin 7, movable pin 7 passes through straight groove 3 and inclined groove 5, the outer wall of turntable 4 is equipped with gear slot 9, the number of gear slot 9 is multiple, first, place steel pipe 21 to appropriate position before fixing, then drive motor 10 work and drive gear 11 rotation, then drive turntable 4 counterclockwise rotation, due to the existence of inclined groove 5, then drive adjacent movable pin 7 and first clamping block 6 mutually close, then make four first clamping block 6 clamp and fix steel pipe 21, can effectively avoid the deviation of steel pipe 21 when steel pipe 21 cold-drawing repair, the side wall of first fixed plate 2 is fixedly connected with motor 10, the output of motor 10 is fixedly connected with gear 11, gear 11 and gear slot 9 are mutually engaged.

[0028] The end of movable pin 7 away from first clamping block 6 is fixedly connected with limit disc 8, limit disc 8 is located at the right side of turntable 4, limit disc 8 can play certain limiting effect to movable pin 7, prevent movable pin 7 from deviating in the process of movement, the outer wall of first fixed plate 2 is equipped with limit slot 26, the number of limit slot 26 is multiple, the side wall of first clamping block 6 is fixedly connected with limit pin 27, limit pin 27 and limit slot 26 can play limiting effect to the movement of first clamping block 6, prevent first clamping block 6 from producing rotation in the process of movement and cause clamping effect to be worse, limit pin 27 is located in the inside of limit slot 26.

[0029] The upper surface of the bottom plate 1 is fixedly connected with a second fixed plate 12, the outer wall of the first fixed plate 2 is fixedly connected with a second clamping block 13, the second clamping block 13 can support the steel pipe 21 and cooperate with the third clamping block 20 to fix the end of the steel pipe 21, so that the steel pipe 21 is more stable during cold drawing repair and cannot shake, the upper surface of the second fixed plate 12 is fixedly connected with a top plate 14, the lower surface of the top plate 14 is fixedly connected with a mounting frame 15, the inner wall of the mounting frame 15 is movably installed with a double-threaded screw rod 16, one end of the double-threaded screw rod 16 is fixedly connected with a twist disc 17, the outer surface of the double-threaded screw rod 16 is threadedly connected with a moving block 18, the number of the moving block 18 is two, the lower surface of the moving block 18 is movably installed with a rotating arm 19, the twist disc 17 is twisted, thereby driving the double-threaded screw rod 16 to rotate, thereby driving the moving block 18 to move closer to or away from each other, when the moving block 18 moves closer to each other, the rotating arm 19 is deflected, thereby driving the third clamping block 20 to move downward, thereby enabling the third clamping block 20 to cooperate with the second clamping block 13 to clamp and fix the end of the steel pipe 21, so that the steel pipe 21 is more stable during processing and is less likely to move, one end of the rotating arm 19 away from the moving block 18 is movably installed with the third clamping block 20.

[0030] The second clamping block 13 and the top plate 14 are provided with a steel pipe 21, the inside of the steel pipe 21 is provided with a pull rod 22, one end of the pull rod 22 away from the second fixed plate 12 is fixedly connected with a repair disc 23, the radius of the repair disc 23 is the same as the inner ring radius of the steel pipe 21, the left side of the pull rod 22 is provided with a clamping cylinder 24, the clamping cylinder 24 is used to clamp and fix the pull rod 22, the outer wall of the clamping cylinder 24 is fixedly connected with a moving rod 25, the outer surface of one end of the moving rod 25 away from the clamping cylinder 24 is circumscribed with a hydraulic cylinder, the moving rod 25 is driven to move left by the hydraulic cylinder, thereby driving the clamping cylinder 24, the pull rod 22 and the repair disc 23 to move left, thereby smoothing the uneven place of the inner wall of the steel pipe 21 by the repair disc 23 and the cold drawing process.

[0031] Working principle: before fixing, the steel pipe 21 is placed in the appropriate position, then the motor 10 is driven to work to drive the gear 11 to rotate, thereby driving the rotating disc 4 to rotate counterclockwise, due to the existence of the inclined groove 5, thereby driving the adjacent movable pin 7 and the first clamping block 6 to move closer to each other, thereby enabling the four first clamping blocks 6 to clamp and fix the steel pipe 21, which can effectively avoid the steel pipe 21 from deviating during cold drawing repair.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A precision steel tube free chuck cold-drawing repair device comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected with a first fixed plate (2), the outer wall of the first fixed plate (2) is provided with a straight groove (3), the number of the straight groove (3) is four, the outer wall of the first fixed plate (2) is movably installed with a rotating disc (4), the outer wall of the rotating disc (4) is provided with an inclined groove (5), the number of the inclined groove (5) is four, the left side of the first fixed plate (2) is provided with a first clamping block (6), the outer wall of the first clamping block (6) is fixedly connected with a movable pin (7), the movable pin (7) passes through the straight groove (3) and the inclined groove (5), the outer wall of the rotating disc (4) is provided with a gear slot (9), the number of the gear slot (9) is multiple, the side wall of the first fixed plate (2) is fixedly connected with a motor (10), the output end of the motor (10) is fixedly connected with a gear (11), and the gear (11) is engaged with the gear slot (9).

2. A precision steel tube free chuck repair device according to claim 1, characterized in that: The end, away from the first clamping block (6), of the movable pin (7) is fixedly connected with a limiting disc (8), and the limiting disc (8) is located on the right side of the rotating disc (4).

3. A precision steel tube free chuck repair device as claimed in claim 1, characterized in that: The outer wall of the first fixed plate (2) is provided with a limiting groove (26), the number of the limiting groove (26) is multiple, the side wall of the first clamping block (6) is fixedly connected with a limiting pin (27), and the limiting pin (27) is located in the inside of the limiting groove (26).

4. A precision steel tube free chuck repair device as claimed in claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly connected with a second fixed plate (12), and the outer wall of the first fixed plate (2) is fixedly connected with a second clamping block (13).

5. A precision steel tube free chuck repair device as claimed in claim 4, characterized in that: The upper surface of the second fixed plate (12) is fixedly connected with a top plate (14), the lower surface of the top plate (14) is fixedly connected with a mounting frame (15), the inner wall of the mounting frame (15) is movably installed with a double-thread screw rod (16), one end of the double-thread screw rod (16) is fixedly connected with a twisting disc (17), the outer surface of the double-thread screw rod (16) is threadedly connected with a moving block (18), the number of the moving block (18) is two, the lower surface of the moving block (18) is movably installed with a rotating arm (19), and one end, away from the moving block (18), of the rotating arm (19) is movably installed with a third clamping block (20).

6. A precision steel tube free chuck repair device as claimed in claim 5, characterized in that: A steel pipe (21) is arranged between the second clamping block (13) and the top plate (14), a pull rod (22) is arranged in the steel pipe (21), and one end, away from the second fixed plate (12), of the pull rod (22) is fixedly connected with a repairing disc (23).

7. A precision steel tube free chuck repair device as claimed in claim 6, characterized in that: A clamping cylinder (24) is arranged on the left side of the pull rod (22), and the outer wall of the clamping cylinder (24) is fixedly connected with a moving rod (25).

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