Steering gear inner tube column cylinder flanging device

Abstract

A kind of steerable in-pipe column cylinder flanging device, it relates to the technical field of automobile accessory processing equipment, including operation table, the top of operation table is equipped with horizontally sliding L-shaped plate and two detachable fixed L-shaped plate of arrangement, detachable installation plate is equipped at the top of sliding L-shaped plate, rotating shaft of rotation arrangement is equipped with at the end of installation plate, fixed shaft is fixedly arranged at the end of sliding L-shaped plate, one end of fixed shaft is passed through rotating shaft and is fixedly connected with expanding mandrel, rotating shaft is rotatably connected with fixed shaft, rotating shaft and expanding mandrel are frictional contact, the front end and rear end of expanding mandrel are expanding area and flaring front area respectively, the front end of rotating shaft is flaring rear area, flaring front area and flaring rear area form flaring area, rotating shaft outer wall is equipped with several installation grooves along circumference, moving block of radial movement arrangement along rotating shaft is arranged in installation groove.The present application solves the problem of poor processing continuity of expanding-flanging process when the existing steerable in-pipe column cylinder processing device processes in-pipe column cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessory processing equipment, in particular to a steering gear inner column cylinder flanging device. BACKGROUND

[0002] The steering gear inner column cylinder is a key component in the automobile steering system, usually located inside the steering column, as a rigid sleeve structure connecting the steering wheel and the steering mechanism. Its core purpose is to protect and guide the operation of the steering transmission shaft (such as universal joint or intermediate shaft), ensuring efficient transmission of the rotational force input by the steering wheel to the steering gear or steering mechanism, while providing a stable support frame for the steering column to withstand the torque and vibration during driving.

[0003] During the processing of the steering gear inner column cylinder, diameter expansion and flanging are two key processes that directly affect the assembly accuracy and connection strength with the steering shaft. First, the inner column cylinder port needs to be expanded in diameter by a diameter expander to ensure that the steering shaft can be smoothly inserted, avoiding interference during assembly. Then, the flanging machine is used to flange the expanded port, which increases the contact area of the inner column cylinder end, and when the inner column cylinder is welded with the universal joint, the flange structure improves the load capacity of the weld, enabling the connection part to withstand greater torque and vibration load during vehicle driving.

[0004] The existing steering gear inner column cylinder processing device gradually exposes its shortcomings during use, mainly in the following aspects:

[0005] The inner column cylinder diameter expansion-flanging process has poor continuity. Specifically, the diameter expansion-flanging process of the inner column cylinder first relies on the diameter expander to expand the port, and after completion, the workpiece needs to be disassembled and transported to the flanging station for secondary clamping. In the flanging process, to avoid thickness unevenness and angle deviation, a step-by-step processing process is adopted: first, a conical mandrel is used to expand the inner column cylinder port into a horn shape, and then a flattening roller is inserted to flatten it. Based on this, further analysis is made: the discrete processing mode of multiple equipment switching and the serial processing mode of the conical mandrel and the flattening roller cause two obvious production breakpoints in the entire processing flow - the first occurs during the material transfer stage between the diameter expansion and flanging processes, and the second occurs during the tool replacement process within the flanging process, resulting in poor continuity of the inner column cylinder diameter expansion-flanging process, which seriously affects processing efficiency.

[0006] From the above, it is obvious that the prior art has disadvantages and defects in actual use, so it is necessary to improve it. SUMMARY

[0007] In view of the defects in the prior art, the technical problem to be solved by the present application is to provide a turner inner pipe column cylinder flanging device, which realizes integrated continuous processing of inner pipe column cylinder expanding, flaring and spinning flattening through integrated design, and the inner pipe column cylinder can be formed by one-time processing, thereby completely eliminating the processing interruption problem caused by equipment switching and step-by-step operation in the traditional process, significantly improving the processing continuity, reducing the precision error caused by workpiece repeated positioning, and greatly shortening the processing cycle.

[0008] To solve the above problems, the present application provides the following technical solutions:

[0009] A turner inner pipe column cylinder flanging device, comprising an operating table, wherein the top of the operating table is provided with a sliding L-shaped plate arranged horizontally and two fixed L-shaped plates arranged detachably, the top of the sliding L-shaped plate is provided with a mounting plate arranged detachably, the end of the mounting plate is provided with a rotating shaft arranged rotatably in a penetrating manner, the end of the sliding L-shaped plate is provided with a fixed shaft arranged fixedly, one end of the fixed shaft penetrates through the rotating shaft and is fixedly connected with an expanding mandrel, the rotating shaft is rotatably connected with the fixed shaft, the rotating shaft is in frictional contact with the expanding mandrel, the front end and the rear end of the expanding mandrel are respectively an expanding region and a flaring front region, the front end of the rotating shaft is a flaring rear region, the flaring front region and the flaring rear region form a flaring region, the outer wall of the rotating shaft is provided with a plurality of mounting grooves in a circumferential direction, the mounting grooves are provided with moving blocks arranged to move along the radial direction of the rotating shaft, the top of the moving block is arranged in a following shape with the flaring rear region of the rotating shaft, the moving block is in frictional contact with the rotating shaft and the expanding mandrel, the two fixed L-shaped plates are provided with an upper clamping plate arranged to be detachably connected therewith, the bottom of the upper clamping plate is provided with a lower clamping plate arranged to be vertically lifted and lowered, the ends of the upper clamping plate and the lower clamping plate are both provided with sliding blocks arranged to slide vertically, the bottom of the upper clamping plate and the top of the lower clamping plate are both provided with expanding grooves, and the sliding blocks are both provided with flaring grooves.

[0010] As an optimized scheme, a sliding plate is arranged to slide horizontally in the mounting groove, the end of the sliding plate is provided with a driving wedge-shaped block arranged detachably, the end of the moving block is provided with a driven wedge-shaped block arranged detachably, and the inclined surface end of the driving wedge-shaped block is slidably connected with the inclined surface end of the driven wedge-shaped block.

[0011] As an optimized scheme, an electric control telescopic cylinder is fixedly arranged in the mounting groove, and the telescopic end of the electric control telescopic cylinder is fixedly connected with the sliding plate.

[0012] As an optimized scheme, a fixed cylinder is fixedly arranged at the end of the rotating shaft, the fixed shaft is located in the fixed cylinder and is rotatably connected with the fixed cylinder, an electrically conductive slip ring is sleeved on the outer wall of the fixed cylinder, the electrically conductive slip ring is detachably connected with the sliding L-shaped plate, and the electric control telescopic cylinder is electrically connected with an external power supply through the electrically conductive slip ring.

[0013] As an optimized scheme, a plurality of fixed rods are fixedly arranged on the inner bottom of the mounting groove, and the fixed rods extend into the moving block and are in sliding connection with the moving block.

[0014] As an optimized scheme, a driving shaft is rotatably arranged at the end of the mounting plate, a sprocket is fixedly arranged on the outer wall of the driving shaft and the rotating shaft, the two sprockets are connected through a chain, a driving motor is fixedly arranged at the end of the mounting plate, and the output shaft of the driving motor is fixedly connected with the driving shaft.

[0015] As an optimized scheme, a driving telescopic cylinder is fixedly arranged on the top of the operation table, and the telescopic end of the driving telescopic cylinder is fixedly connected with the sliding L-shaped plate.

[0016] As an optimized scheme, a plurality of supporting rods are detachably arranged on the top of the operation table, the supporting rods penetrate through the lower clamping plate and are in sliding connection with the lower clamping plate, a lifting telescopic cylinder is fixedly arranged on the bottom of the operation table, and the telescopic end of the lifting telescopic cylinder penetrates through the operation table and is fixedly connected with the lower clamping plate.

[0017] As an optimized scheme, a supporting L-shaped plate is fixedly arranged on the top of the upper clamping plate and the bottom of the lower clamping plate, a lifting plate is vertically and slidingly arranged at the end of the supporting L-shaped plate, the sliding block is detachably connected with the lifting plate, and an avoiding groove is arranged on the top of the operation table.

[0018] As an optimized scheme, a control telescopic cylinder is fixedly arranged on the supporting L-shaped plate, and the telescopic end of the control telescopic cylinder is fixedly connected with the lifting plate.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The inner pipe column cylinder to be processed is placed in the diameter expansion groove of the lower clamping plate, the lifting telescopic cylinder drives the lower clamping plate to slide upwards until the lower clamping plate abuts against the upper clamping plate, at this time, the inner pipe column cylinder is clamped (as shown in Figure 8 ), the driving telescopic cylinder drives the sliding L-shaped plate to slide towards the inner pipe column cylinder, the diameter expansion region of the diameter expansion mandrel is inserted into the inner pipe column cylinder to expand the diameter of the inner pipe column cylinder, with the sliding of the sliding L-shaped plate, the diameter expansion mandrel is continuously inserted into the inner pipe column cylinder, when the flaring region is inserted into the inner pipe column cylinder, the flared port of the inner pipe column cylinder after diameter expansion is flared, after the inner pipe column cylinder is flared (as shown in Figure 9 ), at this time, the diameter expansion process of the inner pipe column cylinder is completed synchronously, the control telescopic cylinder drives the lifting plate and the sliding block to vertically slide, the two sliding blocks are separated and avoided, the flared port of the inner pipe column cylinder leaks out, then the driving motor drives the sprocket, the chain and the rotating shaft to rotate, in the process of rotating, the electric control telescopic cylinder drives the sliding plate and the driving wedge to move towards the moving block, under the cooperation of the passive wedge, the moving block slides outwards, and then the flared port of the inner pipe column cylinder that leaks out is spinning, until the flared port of the inner pipe column cylinder is flattened (asFigure 10 The lower clamping plate is driven downward by the lifting telescopic cylinder to reset, and then the processed inner pipe cylinder is taken out, and thus the processing of the inner pipe cylinder is completed. The device realizes integrated continuous processing of the inner pipe cylinder through integrated design, and the inner pipe cylinder can be processed and formed at one time, which completely eliminates the processing interruption problem caused by equipment switching and step-by-step operation in the traditional process, significantly improves the processing continuity, reduces the precision error caused by repeated positioning of the workpiece, and greatly shortens the processing cycle.

[0021] 2. The flaring front area and the flaring rear area constituting the flaring area are respectively located at the rear end of the expanding mandrel and the front end of the rotating shaft. When the moving block is spinning and flattening the flared port of the inner pipe cylinder, the inner pipe cylinder is bent to form an angle at the flaring front area.

[0022] 3. When the inner pipe cylinder port is flared, the two sliders are in a fitted state, and the two sliders can limit the outer wall of the inner pipe cylinder port, effectively preventing the problem of uneven thickness and angle deviation of the flared port of the inner pipe cylinder. When the moving block is spinning the flared port of the inner pipe cylinder, the two sliders are separated, thereby avoiding the moving block, improving the practicality of the device.

[0023] 4. When the rotating shaft is rotating, the conductive slip ring can ensure continuous power supply of the electric telescopic cylinder and avoid cable winding. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0025] Figure 1 It is a structural schematic diagram of the present application;

[0026] Figure 2 It is a structural schematic diagram of the rotating shaft and the expanding mandrel of the present application;

[0027] Figure 3 It is a structural schematic diagram of the outer wall of the rotating shaft of the present application;

[0028] Figure 4 It is a structural schematic diagram between the two fixed L-shaped plates of the present application;

[0029] Figure 5 It is a structural schematic diagram of the lower clamping plate of the present application;

[0030] Figure 6 It is a structural schematic diagram inside the mounting groove of the present application;

[0031] Figure 7Structure diagram of the moving block driving mode of the present application;

[0032] Figure 8 Structure diagram of the present application when clamping the inner pipe column cylinder;

[0033] Figure 9 Structure diagram of the present application when finishing flaring of the inner pipe column cylinder;

[0034] Figure 10 Structure diagram of the present application when finishing flanging of the inner pipe column cylinder;

[0035] Figure 11 Structure diagram of the present application when the moving block moves outward;

[0036] Figure 12 Structure diagram of the present application when the inner pipe column cylinder is unprocessed, finished in diameter expansion and finished in flanging.

[0037] In the figure: 1 - operation table; 2 - driving telescopic cylinder; 3 - sliding L-shaped plate; 4 - chain; 5 - mounting plate; 6 - fixed L-shaped plate; 7 - fixed cylinder; 8 - fixed shaft; 9 - conductive slip ring; 10 - driving shaft; 11 - chain wheel; 12 - driving motor; 13 - rotating shaft; 14 - flaring area; 15 - diameter expansion mandrel; 16 - diameter expansion area; 17 - front flaring area; 18 - rear flaring area; 19 - electric control telescopic cylinder; 20 - mounting groove; 21 - moving block; 22 - sliding plate; 23 - driving wedge block; 24 - passive wedge block; 25 - fixed rod; 26 - inner pipe column cylinder; 27 - sliding block; 28 - lifting plate; 29 - supporting L-shaped plate; 30 - control telescopic cylinder; 31 - upper clamping plate; 32 - lower clamping plate; 33 - flaring groove; 34 - diameter expansion groove; 35 - avoiding groove; 36 - lifting telescopic cylinder; 37 - supporting rod. DETAILED DESCRIPTION

[0038] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0039] As Figures 1 to 12As shown, a kind of steerable inner pipe column cylinder flanging device, including operation platform 1, the top of operation platform 1 is equipped with horizontally sliding L-shaped plate 3 and two detachable fixed L-shaped plate 6 of arrangement, the top of sliding L-shaped plate 3 is detachably equipped with mounting plate 5, the end of mounting plate 5 is equipped with rotating shaft 13 of rotation arrangement, the end of fixed shaft 8 is fixedly equipped with expansion mandrel 15, rotating shaft 13 is rotatably connected with fixed shaft 8, rotating shaft 13 and expansion mandrel 15 are frictionally contacted, the front end and rear end of expansion mandrel 15 are expansion area 16 and flared front area 17 respectively, the front end of rotating shaft 13 is flared rear area 18, flared front area 17 and flared rear area 18 form flared area 14, a plurality of installation grooves 20 are arranged on the outer wall of rotating shaft 13 in the circumferential direction, and movable block 21 is arranged in the radial direction of rotating shaft 13 in the installation groove 20, movable block 21 is formed with the flared rear area 18 of rotating shaft 13 on the top, movable block 21 is frictionally contacted with rotating shaft 13 and expansion mandrel 15, and the upper clamping plate 31 detachably connected with the two fixed L-shaped plates 6 is arranged between the two fixed L-shaped plates 6, the lower clamping plate 32 is vertically arranged on the bottom of the upper clamping plate 31, the end of the upper clamping plate 31 and the lower clamping plate 32 is vertically slidably provided with sliding block 27, the bottom of the upper clamping plate 31 and the top of the lower clamping plate 32 are provided with expansion groove 34, and the flared groove 33 is arranged on the two sliding blocks 27.

[0040] Sliding plate 22 is horizontally slidably arranged in installation groove 20, and driving wedge 23 is detachably arranged at the end of sliding plate 22, passive wedge 24 is detachably arranged at the end of movable block 21, and the inclined surface end of driving wedge 23 is slidably connected with the inclined surface end of passive wedge 24.

[0041] Electric control telescopic cylinder 19 is fixedly arranged in installation groove 20, and the telescopic end of electric control telescopic cylinder 19 is fixedly connected with sliding plate 22.

[0042] Fixed cylinder 7 is fixedly arranged at the end of rotating shaft 13, fixed shaft 8 is arranged in fixed cylinder 7 and rotatably connected with fixed cylinder 7, and conductive slip ring 9 is sleeved on the outer wall of fixed cylinder 7, conductive slip ring 9 is detachably connected with sliding L-shaped plate 3, and electric control telescopic cylinder 19 is electrically connected with external power supply through conductive slip ring 9.

[0043] A plurality of fixed rods 25 are fixedly arranged on the bottom of installation groove 20, and fixed rods 25 extend into movable block 21 and are slidably connected with movable block 21.

[0044] Driving shaft 10 is rotatably arranged at the end of mounting plate 5, chain wheels 11 are fixedly sleeved on the outer wall of driving shaft 10 and rotating shaft 13, two chain wheels 11 are connected by chain 4, driving motor 12 is fixedly arranged at the end of mounting plate 5, and the output shaft of driving motor 12 is fixedly connected with driving shaft 10.

[0045] The operating table 1 is fixedly provided with a driving telescopic cylinder 2 at the top, and the telescopic end of the driving telescopic cylinder 2 is fixedly connected with a sliding L-shaped plate 3.

[0046] The operating table 1 is detachably provided with a plurality of supporting rods 37 at the top, the supporting rods 37 penetrate through the lower clamping plate 32 and are slidably connected with the lower clamping plate 32, and the operating table 1 is fixedly provided with a lifting telescopic cylinder 36 at the bottom, the telescopic end of the lifting telescopic cylinder 36 penetrates through the operating table 1 and is fixedly connected with the lower clamping plate 32.

[0047] The upper clamping plate 31 and the lower clamping plate 32 are both fixedly provided with supporting L-shaped plates 29 at the top and the bottom, respectively, the supporting L-shaped plates 29 are vertically slidably provided with lifting plates 28 at the ends, the sliding blocks 27 are detachably connected with the lifting plates 28, and the operating table 1 is provided with an avoiding groove 35 penetrating through the top.

[0048] The supporting L-shaped plates 29 are both fixedly provided with control telescopic cylinders 30, and the telescopic ends of the control telescopic cylinders 30 are fixedly connected with the lifting plates 28.

[0049] The working principle of the device is as follows:

[0050] The inner pipe cylinder 26 to be processed is placed in the diameter expansion groove 34 of the lower clamping plate 32, the lifting telescopic cylinder 36 drives the lower clamping plate 32 to slide upwards until it abuts against the upper clamping plate 31, at this time, the inner pipe cylinder 26 is clamped (as shown in Figure 8 ), the driving telescopic cylinder 2 drives the sliding L-shaped plate 3 to slide towards the inner pipe cylinder 26, the diameter expansion region 16 of the diameter expansion mandrel 15 is inserted into the inner pipe cylinder 26 to expand the diameter of the inner pipe cylinder 26, with the sliding of the sliding L-shaped plate 3, the diameter expansion mandrel 15 is continuously inserted into the inner pipe cylinder 26, when the flaring region 14 is inserted into the inner pipe cylinder 26, the flared port of the expanded inner pipe cylinder 26 is flared, after the flaring of the inner pipe cylinder 26 (as shown in Figure 9 ), at this time, the diameter expansion process of the inner pipe cylinder 26 is completed synchronously, the control telescopic cylinder 30 drives the lifting plate 28 and the sliding block 27 to vertically slide, the two sliding blocks 27 are separated and avoided, the flared port of the inner pipe cylinder 26 leaks out, then the driving motor 12 drives the chain wheel 11, the chain 4 and the rotating shaft 13 to rotate, in the process of rotating, the electric control telescopic cylinder 19 drives the sliding plate 22 and the driving wedge block 23 to move towards the moving block 21, under the cooperation of the passive wedge block 24, the moving block 21 slides outwards, and then the flared port of the inner pipe cylinder 26 that leaks out is spinning, until the flared port of the inner pipe cylinder 26 is flattened (as shown in Figure 10As shown in the figure, the lifting telescopic cylinder 36 drives the lower clamping plate 32 to move downward and reset, and then the processed inner pipe cylinder 26 is taken out, and thus the processing of the inner pipe cylinder 26 is completed. The device realizes the integrated continuous processing of the inner pipe cylinder 26 through integrated design, and the inner pipe cylinder 26 can be processed and formed at one time, which completely eliminates the processing interruption problem caused by equipment switching and step-by-step operation in the traditional process, significantly improves the processing continuity, reduces the precision error caused by repeated positioning of the workpiece, and greatly shortens the processing cycle.

[0051] The flaring front area 17 and the flaring rear area 18 constituting the flaring area 14 are respectively located at the rear end of the expanding mandrel 15 and the front end of the rotating shaft 13. When the moving block 21 rotates and flattens the flared port of the inner pipe cylinder 26, the inner pipe cylinder 26 is bent to form an angle at the flaring front area 17.

[0052] When the inner pipe cylinder 26 is flared, the two sliders 27 are in a fitted state, and the two sliders 27 can limit the outer wall of the port of the inner pipe cylinder 26, effectively preventing the problems of uneven thickness and angle deviation of the port of the inner pipe cylinder 26 after flaring. When the moving block 21 rotates and flattens the flared port of the inner pipe cylinder 26, the two sliders 27 are separated and thus avoid the moving block 21, improving the practicality of the device.

[0053] When the rotating shaft 13 rotates, the conductive slip ring 9 can ensure that the electric control telescopic cylinder 19 is continuously powered and avoid cable winding.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A diverter inner string barrel flaring device characterized by: The operation platform (1) is provided with a sliding L-shaped plate (3) and two detachable fixed L-shaped plates (6) on the top, the sliding L-shaped plate (3) is detachably provided with a mounting plate (5) on the top, the mounting plate (5) is provided with a rotating shaft (13) penetrating at the end, the sliding L-shaped plate (3) is fixedly provided with a fixed shaft (8) at the end, one end of the fixed shaft (8) penetrates the rotating shaft (13) and is fixedly connected with a diameter expanding mandrel (15), the rotating shaft (13) is rotatably connected with the fixed shaft (8), the rotating shaft (13) is in frictional contact with the diameter expanding mandrel (15), the front end and the rear end of the diameter expanding mandrel (15) are respectively a diameter expanding area (16) and a flared front area (17), the front end of the rotating shaft (13) is a flared rear area (18), the flared front area (17) and the flared rear area (18) form a flared area (14), the outer wall of the rotating shaft (13) is provided with a plurality of mounting grooves (20) in the circumferential direction, the mounting grooves (20) are provided with a moving block (21) moving in the radial direction of the rotating shaft (13), the top of the moving block (21) is conformally arranged with the flared rear area (18) of the rotating shaft (13), the moving block (21) is in frictional contact with the rotating shaft (13) and the diameter expanding mandrel (15), two fixed L-shaped plates (6) are provided with an upper clamping plate (31) detachably connected therewith, the upper clamping plate (31) is vertically provided with a lower clamping plate (32) at the bottom, the end of the upper clamping plate (31) and the lower clamping plate (32) is vertically provided with a sliding block (27), the bottom of the upper clamping plate (31) and the top of the lower clamping plate (32) are provided with a diameter expanding groove (34), and the sliding block (27) is provided with a flared groove (33) on the upper end.

2. A diverter inner tube column barrel flaring device according to claim 1, wherein: The mounting groove (20) is provided with a sliding plate (22) horizontally sliding therein, the end of the sliding plate (22) is detachably provided with a driving wedge (23), and the end of the moving block (21) is detachably provided with a passive wedge (24), the inclined surface end of the driving wedge (23) is slidingly connected with the inclined surface end of the passive wedge (24).

3. A diverter inner tube column barrel flaring device according to claim 2, wherein: The mounting groove (20) is fixedly provided with an electric control telescopic cylinder (19), and the telescopic end of the electric control telescopic cylinder (19) is fixedly connected with the sliding plate (22).

4. A diverter inner tube column barrel flaring device according to claim 3, wherein: The rotating shaft (13) is fixedly provided with a fixed cylinder (7) at the end, the fixed shaft (8) is located in the fixed cylinder (7) and is rotatably connected with the fixed cylinder (7), the outer wall of the fixed cylinder (7) is sleeved with a conductive slip ring (9), the conductive slip ring (9) is detachably connected with the sliding L-shaped plate (3), and the electric control telescopic cylinder (19) is electrically connected with the external power supply through the conductive slip ring (9).

5. A diverter inner tube column barrel flaring device as defined in claim 2 wherein: The mounting groove (20) is fixedly provided with a plurality of fixed rods (25) at the bottom, the fixed rods (25) extend into the moving block (21) and are slidingly connected with the moving block (21).

6. A diverter inner tube column barrel flaring device as defined in claim 1 wherein: The mounting plate (5) is rotatably provided with a driving shaft (10), the outer wall of the driving shaft (10) and the rotating shaft (13) is fixedly provided with a chain wheel (11), the two chain wheels (11) are connected through a chain (4), the mounting plate (5) is fixedly provided with a driving motor (12) at the end, and the output shaft of the driving motor (12) is fixedly connected with the driving shaft (10).

7. A diverter inner string barrel flaring device as defined in claim 1 wherein: The operating table (1) is fixedly provided with a driving telescopic cylinder (2) on the top, and the telescopic end of the driving telescopic cylinder (2) is fixedly connected with a sliding L-shaped plate (3).

8. A diverter inner string barrel flaring device as defined in claim 1 wherein: The operating table (1) is detachably provided with a plurality of supporting rods (37) on the top, the supporting rods (37) penetrate the lower clamping plate (32) and are slidably connected with the lower clamping plate (32), and the operating table (1) is fixedly provided with a lifting telescopic cylinder (36) at the bottom, the telescopic end of the lifting telescopic cylinder (36) penetrates the operating table (1) and is fixedly connected with the lower clamping plate (32).

9. A diverter inner string barrel flaring device as defined in claim 1 wherein: The upper clamping plate (31) and the lower clamping plate (32) are both fixedly provided with a supporting L-shaped plate (29) on the top and the bottom, the end of the supporting L-shaped plate (29) is vertically slidably provided with a lifting plate (28), the sliding block (27) is detachably connected with the lifting plate (28), and the operating table (1) is provided with an avoiding groove (35) penetrating the top.

10. A diverter inner string barrel flaring device as defined in claim 9, wherein: The supporting L-shaped plate (29) is fixedly provided with a control telescopic cylinder (30), and the telescopic end of the control telescopic cylinder (30) is fixedly connected with the lifting plate (28).

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