Oil pressure automatic leveling tool for flat-bulb steel

Abstract

The technical scheme relates to the technical field of ship folding tools, in particular to an oil pressure automatic leveling tool for flat-bulb steel, which comprises a base, an oil pressure adjusting device and a leveling device, a mounting cavity is formed in the base, at least one end of the mounting cavity penetrates through the side wall of the base, and a fixing structure fixed on the flat-bulb steel is arranged on the lower side of the base; the rear end of the fixed arm is inserted into the mounting cavity, and a fixed part is fixed at the front end of the fixed arm; the hydraulic cylinder is mounted on the fixed part; the upper end of the leveling arm is connected with the hydraulic cylinder, and the hydraulic cylinder drives the leveling arm to move towards the lower part of the base; wherein the leveling arm is provided with a leveling position with a downward opening, the leveling position is in a big-end-down cone shape, the base is provided with a restraining groove, the two sides of the leveling arm abut against the inner wall of the restraining groove in a sliding mode, and under the action of the hydraulic cylinder, the leveling arm slides in the restraining groove. And the deviated flat-bulb steel is pushed to the middle of the leveling position by utilizing the leveling position with the large lower part and the small upper part. The device has the advantages of being convenient to operate, time-saving and labor-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of ship closing tooling, and in particular to an oil pressure automatic leveling tooling for bulb flat steel. Background Art

[0002] The saddle plate assembly method is a ship segment closure process, which is often used in steel structure closure. It uses saddle plates as temporary connecting components and fixes adjacent segments through precise positioning and welding. It can achieve rapid docking of hull structures while controlling accuracy and deformation, and is widely used in the field of shipbuilding.

[0003] Subsequently, in order to save materials, Chinese patent CN202421501064.5 appeared. However, the adjustment of this technology still relies on manually twisting the corresponding screws to adjust the deviations in each direction. Since ships generally use high-strength steel, manual adjustment is time-consuming and labor-intensive, especially for leveling operations in some smaller areas. It is more difficult, so there is an urgent need for a leveling tooling solution that saves time and effort, is easy to use, and is less affected by space. Summary of the Invention

[0004] The purpose of this technical solution is to provide a hydraulic automatic leveling tool for bulb flat steel. Through a newly designed base and fixed arm solution, in conjunction with a hydraulic cylinder and leveling arm, automatic leveling operations are performed to solve the problems of inconvenient operation, time-consuming and labor-intensive operation in the existing design.

[0005] The purpose of this technical solution is achieved in this way:

[0006] A hydraulic automatic leveling tool for bulb flat steel, comprising:

[0007] A base having a mounting cavity formed thereon, at least one end of which penetrates the side wall of the base, and a fixing structure for fixing to the bulb flat steel being provided on the lower side of the base;

[0008] a fixed arm, the rear end of which is inserted into the mounting cavity, and the front end of which is fixed with a fixing portion;

[0009] a hydraulic cylinder mounted on the fixing portion;

[0010] a leveling arm, the upper end of which is connected to the hydraulic cylinder, and the hydraulic cylinder drives the leveling arm to move toward the bottom of the base;

[0011] Among them, the leveling arm is provided with a leveling position with an opening facing downward, and the leveling position is in the shape of a cone with a larger bottom and a smaller top. A constraint groove is provided on the base, and the two sides of the leveling arm slide against the inner wall of the constraint groove. Under the action of the hydraulic cylinder, the leveling arm is realized to slide in the constraint groove, and the leveling position with a larger bottom and a smaller top is used to push the offset ball flat steel to the middle of the leveling position.

[0012] Preferably, the installation cavity passes through the two opposite ends of the base, and the constraint groove is also correspondingly opened on the base, so that the fixed arm can be installed on the base in different directions, and the installation direction can be selected according to actual conditions to complete the leveling operation.

[0013] Preferably, the inner walls on both sides of the constraint groove are provided with constraint grooves, and the connecting line between the constraint grooves intersects with the bulb flat steel located in the constraint groove;

[0014] Sliding portions are formed on both sides of the leveling arm;

[0015] When the leveling arm is located in the constraint groove, the sliding portion is slidably placed in the constraint groove, thereby constraining the position of the leveling arm.

[0016] Preferably, the fixing structure includes: a clamping convex plate and a mounting portion protruding from the lower end surface of the base, the clamping convex plate and the mounting portion are oppositely distributed, a fixing groove for accommodating the arc-shaped portion of the bulb flat steel is formed between the clamping convex plate and the lower end surface of the base, and a fixing screw is screwed on the mounting portion;

[0017] When the bulb flat steel is placed between the clamping convex plate and the mounting portion, the screw rod is rotated to press its end against the bulb flat steel, thereby pressing the arc portion of the bulb flat steel into the fixing groove, thereby completing the fixation of the base on the bulb flat steel.

[0018] Preferably, the output axis of the hydraulic cylinder, the center line of the constraint groove, the center line of the leveling position, and the center line of the upper end surface of the bulb flat steel are all located in the same vertical plane.

[0019] Preferably, a limiting portion is provided on the leveling arm;

[0020] When the limiting portion abuts against the upper end surface of the base next to the restraining groove, the leveling arm stops moving downward, and the upper bottom surface of the leveling position and the upper end surface of the fixing groove are in the same plane.

[0021] Preferably, the rear end of the fixed arm is provided with an inserting portion, the inserting portion is located below the fixed portion, and the rear end of the fixed portion is formed with an abutting surface;

[0022] When the plug-in portion is inserted into the mounting cavity, the abutting surface can abut against the upper portion of the front side surface of the base.

[0023] Preferably, a first limiting hole communicating with the mounting cavity is provided on the upper end surface of the base, and a second limiting hole is provided on the upper side surface of the plug-in portion;

[0024] When the plug-in portion is inserted into the installation cavity, the first limiting hole and the second limiting hole are aligned with each other, and the movement of the plug-in portion in the installation cavity is limited by inserting the limiting rod.

[0025] Preferably, the base comprises:

[0026] A fixed base plate, the lower end surface of which is provided with the clamping convex plate and the mounting portion, and the restraining groove is also provided on the fixed base plate;

[0027] The socket is mounted on the fixed base plate through a fixing piece, and the restraining grooves are located on both sides of the socket.

[0028] Preferably, the base is further provided with a detection component for controlling the operation of the hydraulic cylinder;

[0029] The detection components include:

[0030] A detection rod is vertically movably mounted on the fixed arm, and the lower end of the detection rod can abut against the upper end surface of the bulb flat steel, and a detection piece is movably provided on the upper end of the detection rod;

[0031] a detector mounted on the base;

[0032] During the leveling test, since the lower end of the detection rod is against the upper end surface of the bulb flat steel, as the higher bulb flat steel moves downward, the detection rod also moves downward until the detection part detects the reference point set on the base, and the hydraulic cylinder stops working, completing the leveling operation between the two bulb flat steels.

[0033] Compared with the existing technology, this technical solution has the following outstanding and beneficial technical effects:

[0034] 1. This technical solution is a newly designed base, on which a fixed arm is plugged, a hydraulic cylinder is fixed on the fixed arm, and a leveling arm is installed on the hydraulic cylinder. The hydraulic cylinder is used to drive the leveling arm to move toward the bulb flat steel, and the leveling operation between the bulb flat steels is automatically achieved by coordinating the conical leveling position with a larger bottom and a smaller top. The entire action only requires manual installation of the tooling on the bulb flat steel to be leveled, and then starting the hydraulic cylinder to complete the operation. There is no need to manually twist the corresponding screw as in the existing design, and the situation of being unable to twist will not occur. At the same time, no large operating space is required. The overall use is simple, convenient, efficient, and reusable.

[0035] 2. The installation cavity in this technical solution runs through the opposite ends of the base, and the constraint grooves are also opened on the opposite ends of the base, so that the fixed arm can be fixed on both sides of the base, so that workers can choose the plug-in direction according to actual conditions to install the existing situation, especially to meet the needs of some small areas where the tooling is not easy to turn around for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of the misalignment between the bulb flat steels of the present invention.

[0037] Figure 2 This is one of the overall structural diagrams of the present invention.

[0038] Figure 3 This is the second schematic diagram of the overall structure of the present invention.

[0039] Figure 4 This is a schematic diagram of the structure of the present invention installed as a whole on a bulb flat steel.

[0040] Figure 5 This is a schematic diagram of the present invention being integrally mounted on a bulb flat steel and ready for leveling.

[0041] Figure 6 This is a schematic diagram of the present invention being installed on a bulb flat steel during leveling operation.

[0042] Figure 7 Schematic diagram of the present invention being installed as a whole on a bulb flat steel to complete the leveling operation

[0043] Figure 8 It is a structural schematic diagram of the fixed substrate of the present invention.

[0044] Figure 9 The invention provides a hydraulic cylinder equipped with a leveling arm.

[0045] Figure 10 This is a schematic diagram of the bulb flat steel of the present invention placed in the fixing groove.

[0046] Figure 11 A side view of the overall structure of the present invention

[0047] Figure 12 Schematic diagram of the present invention with a detection component installed

[0048] Figure 13 It is a cross-sectional view of the present invention after completing the leveling operation.

[0049] Figure 14 Schematic diagram of the level of the present invention.

[0050] Figure 15 It is a schematic diagram of using a spirit level to complete leveling according to the present invention.

[0051] Figure 16 Schematic diagram of the fixed arm of the present invention.

[0052] Figure 17 It is a top view of the fixed substrate of the present invention.

[0053] Figure markings: 1. base; 2. mounting cavity; 3. fixed arm; 4. fixing part; 5. hydraulic cylinder; 6. leveling arm; 7. leveling position; 8. constraint groove; 9. constraint slide; 10. sliding part; 11. snap-fitting protrusion; 12. mounting part; 13. fixing groove; 14. limiting part; 15. plug-in part; 16. abutting surface; 17. limiting hole 1; 18. limiting hole 2; 19. fixed base plate; 20. plug-in seat; 21. detection rod; 22. detection part; 23. detector; 24. threaded hole; 25. horizontal plane; 26. spirit level. DETAILED DESCRIPTION

[0054] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0055] like Figure 1 The figure shows a schematic diagram of a bulb flat steel that needs to be leveled.

[0056] like Figure 2-Figure 3 As shown, a hydraulic automatic leveling tool for bulb flat steel is mainly used in the leveling operation of bulb flat steel on ships. This solution can also be used in the leveling operation of T-shaped steel or angle steel.

[0057] It mainly includes: base 1, fixed arm 3, hydraulic cylinder 5 and leveling arm 6;

[0058] The base 1 as a whole includes: a fixed base plate 19 and a socket 20. The fixed base plate 19 is designed as a rectangular parallelepiped as a whole (the shape is not unique). A fixing structure is provided under the fixed base plate 19, so that the fixed base plate 19 can be installed and fixed on the bulb flat steel. A constraint groove 8 is opened on one side of the fixed base plate 19. In this embodiment, the constraint groove 8 is U-shaped. The above-mentioned socket 20 is fixed in the middle of the fixed base plate 19. The fixing method can be bolts, welding or one-piece molding; an installation cavity 2 is opened horizontally on the socket 20, and the installation cavity 2 passes through the side wall of at least one side.

[0059] The rear end of the fixed arm 3 is provided with a plug-in portion 15, and the front end is provided with a fixing portion 4. The setting method can be formed, welded or connected by bolts, etc. The plug-in portion 15 is inserted into the installation cavity 2 to realize the installation of the fixed arm 3 on the socket 20. After installation, the fixing portion 4 is located above the constraint groove 8.

[0060] The hydraulic cylinder 5 is fixed on the fixing part 4. In this embodiment, the fixing part 4 is a fixing ring, which is sleeved on the hydraulic cylinder 5. The output end of the hydraulic cylinder 5 is facing forward. A slot is provided at the upper end of the leveling arm 6. The output end of the hydraulic cylinder 5 is inserted into the slot and fixed by a pin shaft, so that the leveling arm 6 can be extended into the constraint groove 8, and the two sides of the leveling arm 6 slide against the inner wall of the constraint groove 8.

[0061] The lower end of the leveling arm 6 is provided with a leveling position 7 with an opening facing downwards, and the leveling position 7 is in a cone shape with a larger bottom and a smaller top.

[0062] Combine Figure 4-Figure 7 The bulb flat steel that needs to be adjusted generally has misalignment, and misalignment generally refers to horizontal misalignment and / or vertical misalignment. This embodiment is described by taking the case where both have misalignment as an example. When in use, first fix the base 1 on the lower bulb flat steel through a fixed structure, so that the side of the base 1 with the constraint groove 8 is located at the end of the higher bulb flat steel. At this time, the leveling arm 6 is above the end of the higher bulb flat steel. Then start the hydraulic cylinder 5, so that the leveling arm 6 starts to move toward the bulb flat steel. During the movement, the inclined inner wall on one side of the leveling position 7 contacts the bulb flat steel and pushes it to move. Under the action of the inclined inner wall, the bulb flat steel is deformed and moved toward the aligned state until the lower bulb flat steel is aligned with the higher bulb flat steel. The hydraulic cylinder 5 stops working and maintains the state until welding is completed. Then the tooling is disassembled and the part blocked by the tooling is welded to complete the overall operation.

[0063] The technical solution is a newly designed base 1, a fixed arm 3 is plugged into the base 1, a hydraulic cylinder 5 is fixed on the fixed arm 3, a leveling arm 6 is installed on the hydraulic cylinder 5, the hydraulic cylinder 5 is used to drive the leveling arm 6 to move toward the bulb flat steel, and the leveling operation between the bulb flat steels is automatically achieved by cooperating with the conical leveling position 7 with a larger bottom and a smaller top; the entire action only requires manual installation of the tooling on the bulb flat steel to be leveled, and then starting the hydraulic cylinder 5 to complete the operation. There is no need to manually twist the corresponding screw as in the existing design, and the situation of being unable to twist will not occur. At the same time, no large operating space is required. The overall use is simple, convenient, efficient, and reusable.

[0064] In order to improve the practicality and convenience of the tooling of this solution, the hydraulic automatic leveling tooling for bulb flat steel of this technical solution is designed to be used on both sides, that is, the installation cavity 2 passes through the opposite ends of the base 1, and the constraint groove 8 is also correspondingly opened on the base 1, so that the fixed arm 3 can be installed on the base 1 in different directions, and the installation direction can be selected according to actual conditions to complete the leveling operation.

[0065] In order to ensure more accurate leveling during use, vertical constraint grooves 9 are provided on the inner walls on both sides of the constraint groove 8; sliding parts 10 are formed on both sides of the leveling arm 6; the sliding part 10 can be extended into the constraint groove 9 and slide therein. Through the cooperation of the constraint groove 9 and the sliding part 10, the leveling arm 6 can be constrained so that it will not swing at will, thereby ensuring accurate leveling and protecting the hydraulic cylinder 5 at the same time to avoid the horizontal movement of the leveling arm 6, which may cause the hydraulic shaft of the hydraulic cylinder 5 to bend and be damaged.

[0066] Combine Figure 6At the same time, the connecting line between the constraint slide grooves 9 intersects with the ball flat steel located in the constraint groove 8; this ensures that when the leveling arm 6 enters the constraint groove 8, it can "straddle" the ball flat steel, ensuring smooth leveling.

[0067] The above-mentioned fixing structure is mainly used to fix the base 1 on the steel material. In this embodiment, a bulb flat steel is used as an example.

[0068] like Figures 8-10 As shown, the fixing structure includes: a clamping protrusion 11 and a mounting portion 12 protruding from the lower end surface of the base 1, the clamping protrusion 11 and the mounting portion 12 are oppositely distributed, the clamping protrusion 11 is inclined, and an angle is formed between it and the lower end surface of the base 1, and the angle is used to form a fixing groove 13 for accommodating the arc-shaped portion of the bulb flat steel, a threaded hole 24 is opened in the mounting portion 12, and the height of the threaded hole 24 is located within the horizontal corresponding depth of the fixing groove 13, and a fixing screw is screwed into the threaded hole 24.

[0069] The distance between the lower end of the clamping protrusion 11 and the mounting portion 12 is such that the arc-shaped portion of the bulb flat steel can pass through, so that the bulb flat steel can be placed in the fixing groove 13. Then, the fixing screw is rotated so that its end presses against the bulb flat steel, thereby pressing the arc-shaped portion of the bulb flat steel into the fixing groove 13, thereby completing the fixation of the base 1 on the bulb flat steel.

[0070] like Figure 10 As shown, the position of the threaded hole 24 is optimized in design, so that the end face of the fixing screw is facing the inclined inner wall of the clamping convex plate 11, so that the two can cooperate more stably to resist the bulb flat steel.

[0071] The force application points of the end face of the fixing screw and the inclined inner side wall of the clamping protrusion 11 on the bulb flat steel are on opposite surfaces at the same position.

[0072] The output axis of the hydraulic cylinder 5, the center line of the constraint groove 8, the center line of the leveling position 7, and the center line of the upper end surface of the bulb flat steel are all located in the same vertical plane.

[0073] This design can ensure the accuracy of the leveling state and make it easier to align the bulb flats.

[0074] One of the solutions for aligning and leveling the bulb flat steels is to manually observe with the naked eye and manually stop the hydraulic cylinder 5 after alignment. However, since the alignment seam between the bulb flat steels is located below the base 1, it may be blocked by the base 1. In particular, the height alignment between the bulb flat steels is the most difficult to observe. Therefore, in order to more conveniently observe and control the leveling, the following solutions are designed.

[0075] The first solution is to design the upper end of the leveling position 7 into a horizontal plane 25, and the width of the horizontal plane 25 corresponds to the maximum width of the upper end of the bulb flat steel. Combined with the above-mentioned design that the output axis of the hydraulic cylinder 5, the center line of the constraint groove 8, the center line of the leveling position 7, and the center line of the upper end surface of the bulb flat steel are all located in the same vertical plane, a situation can be formed in which, when the upper end surface of the bulb flat steel abuts against the horizontal plane 25, both sides of the bulb flat steel abut against the inclined surface of the leveling position 7 at the same time. At this time, the bulb flat steels are aligned in the horizontal direction. Next, the leveling operation can be completed by ensuring the alignment in the vertical direction.

[0076] Combine Figure 9 、 Figure 11 In the vertical alignment, it is mainly achieved by controlling the distance that the leveling arm 6 moves downward, that is, a limiting portion 14 is provided on the leveling arm 6; when the leveling arm 6 moves down to the point where the limiting portion 14 abuts against the upper end surface of the base 1 next to the constraint groove 8, the leveling arm 6 stops moving downward. At this time, the upper horizontal surface 25 of the leveling position 7 and the upper end surface of the fixed groove 13 (the lower end surface of the fixed base plate 19) are in the same plane. Since the bulb flat steels are respectively tightly attached to the horizontal surface 25 and the upper end surface of the fixed groove 13 (the lower end surface of the fixed base plate 19), the height leveling operation between the bulb flat steels can be achieved.

[0077] The second solution is to further provide a detection component on the base 1;

[0078] Combine Figure 12 、 Figure 13 , the detection component includes:

[0079] A detection rod 21 is vertically movably mounted (through) on the fixed arm 3, and the lower end of the detection rod 21 can abut against the upper end surface of the bulb flat steel. A detection member 22 is movably provided on the upper end of the detection rod 21;

[0080] a detector 23 mounted on the base 1;

[0081] During the leveling detection process, since the lower end of the detection rod 21 is against the upper end surface of the bulb flat steel, as the higher bulb flat steel moves downward, the detection rod 21 also moves downward until the detection member 22 detects the reference point corresponding to the detector 23 set on the base 1, and the hydraulic cylinder 5 stops working, realizing the leveling operation between the two bulb flat steels.

[0082] The detection member 22 can be a photoelectric switch, and the detector 23 can be a light-shielding protrusion set on the base 1. First, calculate the height of the detection rod 21 when it moves down (the height when the lower end surface of the detection rod 21 is in the same plane as the lower end surface of the fixed base plate 19). Then install the detector 23 at the set position. After the detection rod 21 moves down to the set height, the photoelectric switch just moves to the horizontal height of the detector 23. The detector 23 blocks the light from the photoelectric opening, and the photoelectric switch is triggered, sending a signal to the circuit board, which controls the oil pump to stop working, thereby achieving automatic leveling and shutdown. Alternatively, the positions of the photoelectric switch and the light-shielding protrusion are interchanged, with the light-shielding protrusion installed on the rod and the photoelectric switch installed on the base 1. A spring can be installed on the detection rod 21, with the ends of the spring respectively pressing against the fixed arm 3 and the detection rod 21, so that the detection rod 21 always has a downward trend, ensuring that the lower end of the detection rod 21 can always press against the bulb flat steel. In this way, even if the base 1 is fixed horizontally, the corresponding function can be achieved.

[0083] [Variation]

[0084] Combine Figure 14 and Figure 15 The detection piece 22 installed at the upper end of the detection rod 21 adopts a spirit level 26, that is, one end of the spirit level 26 is hinged to the upper end of the detection rod 21, and can swing and tilt downward. After the height is calculated, when the detection rod 21 moves downward, the movable end of the spirit level 26 will contact the fixed part 4. As it moves downward, the spirit level 26 will slowly level off. When the spirit level 26 is level off, it proves that the height is aligned.

[0085] like Figure 16 As shown, regarding the design of the fixed arm 3: the rear end of the fixed arm 3 is provided with a plug-in portion 15, the plug-in portion 15 is located below the fixed portion 4, and the rear end of the fixed portion 4 is formed with an abutment surface 16;

[0086] When the inserting portion 15 is inserted into the mounting cavity 2 , the abutting surface 16 can abut against the upper portion of the front side surface of the base 1 .

[0087] Because during the leveling process, the hydraulic cylinder 5 exerts an upward force on the fixing part 4. If the force is simply shared by the plug-in part 15, the plug-in part 15 will bend after a long time, which will affect the subsequent leveling operation.

[0088] The current upper and lower designs, combined with the abutment surface 16 , share part of the force through the abutment surface 16 during actual use and transmit it to the base 1 , thereby reducing the bending degree of the plug-in portion 15 and ensuring the leveling accuracy and overall service life.

[0089] refer to Figure 12In order to ensure the stable connection between the plug-in portion 15 and the base 1, a limiting hole 17 is provided on the upper end surface of the plug-in seat 20 to connect to the mounting cavity 2, and a limiting hole 2 18 is provided on the side of the plug-in portion 15;

[0090] When the plug-in portion 15 is inserted into the installation cavity 2 and the limiting hole 17 and the limiting hole 2 18 are aligned with each other, the movement of the plug-in portion 15 in the installation cavity 2 is limited by inserting the limiting rod.

[0091] like Figure 17 As shown, the constraint groove 8 on the above-mentioned fixed base plate 19 is designed to be U-shaped, mainly to increase the deformation resistance of the end portion and ensure the leveling accuracy. At the same time, in order to facilitate the observation of the alignment status of the bulb flat steel and reduce costs, the constraint ability of the leveling arm 6 must also be guaranteed. The limit columns 27 protrude downward at the ends of both sides of the constraint groove 8, and the constraint slide groove 9 is opened on the inner side of the limit column 27. In this way, the overall side wall of the leveling arm 6 can be constrained, and at the same time, other parts can save materials, thereby achieving the purpose of saving materials.

[0092] The above shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. Those skilled in the art should understand that the present technical solution is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present technical solution. Various changes and improvements may be made to the present technical solution without departing from the spirit and scope of the present technical solution. Such changes and improvements fall within the scope of the present technical solution for which protection is sought. The scope of protection claimed by the present technical solution is defined by the appended claims and their equivalents.

Claims

1. A hydraulic automatic leveling tool for bulb flat steel, characterized in that: include: A base (1) is provided with a mounting cavity (2), at least one end of which passes through a side wall of the base (1); a fixing structure for fixing to a bulb flat steel is provided on the lower side of the base (1); A fixed arm (3), the rear end of which is inserted into the mounting cavity (2), and a fixing portion (4) is fixed to the front end of the fixed arm (3); a hydraulic cylinder (5) mounted on the fixing portion (4); A leveling arm (6), the upper end of which is connected to the hydraulic cylinder (5), and the hydraulic cylinder (5) drives it to move toward the bottom of the base (1); The leveling arm (6) is provided with a leveling position (7) with an opening facing downward, and the leveling position (7) is in a conical shape with a larger bottom and a smaller top. The base (1) is provided with a constraint groove (8), and both sides of the leveling arm (6) slide against the inner wall of the constraint groove (8). Under the action of the hydraulic cylinder (5), the leveling arm (6) slides in the constraint groove (8), and the leveling position (7) with a larger bottom and a smaller top is used to push the offset ball flat steel to the middle of the leveling position (7).

2. The hydraulic automatic leveling tool for bulb flat steel according to claim 1, characterized in that: The installation cavity (2) passes through the two opposite ends of the base (1), and the constraint groove (8) is also correspondingly provided on the base (1), so that the fixed arm (3) can be installed on the base (1) in different directions, and the installation direction can be selected according to actual conditions, thereby completing the leveling operation.

3. The hydraulic automatic leveling tool for bulb flat steel according to claim 1 or 2, characterized in that: Constraint chute (9) is provided on both inner walls of the constraint groove (8), and the connecting line between the constraint chute (9) intersects with the bulb flat steel located in the constraint groove (8); Sliding parts (10) are formed on both sides of the leveling arm (6); When the leveling arm (6) is located in the restraining groove (8), the sliding portion (10) is slidably placed in the restraining sliding groove (9), thereby restraining the position of the leveling arm (6).

4. The hydraulic automatic leveling tool for bulb flat steel according to claim 3 is characterized in that: The fixing structure comprises: a clamping convex plate (11) and a mounting portion (12) protruding from the lower end surface of the base (1); the clamping convex plate (11) and the mounting portion (12) are arranged opposite to each other; a fixing groove (13) for accommodating an arc-shaped portion of a bulb flat steel is formed between the clamping convex plate (11) and the lower end surface of the base (1); and a fixing screw is screwed onto the mounting portion (12); When the flat bulb steel is placed between the clamping convex plate (11) and the mounting portion (12), the screw rod is rotated to press the end of the flat bulb steel, thereby pressing the arc portion of the flat bulb steel into the fixing groove (13), thereby completing the fixing of the base (1) on the flat bulb steel.

5. The hydraulic automatic leveling tool for bulb flat steel according to claim 4, characterized in that: The output axis of the hydraulic cylinder (5), the center line of the constraint groove (8), the center line of the leveling position (7), and the center line of the upper end surface of the bulb flat steel are all located in the same vertical plane.

6. The hydraulic automatic leveling tool for bulb flat steel according to claim 3, characterized in that: A limiting portion (14) is provided on the leveling arm (6); When the limiting portion (14) abuts against the upper end surface of the base (1) next to the restraining groove (8), the leveling arm (6) stops moving downward, and the upper bottom surface of the leveling position (7) and the upper end surface of the fixing groove (13) are in the same plane.

7. The hydraulic automatic leveling tool for bulb flat steel according to claim 1, characterized in that: The rear end of the fixed arm (3) is provided with an inserting portion (15), the inserting portion (15) is located below the fixed portion (4), and the rear end of the fixed portion (4) is formed with an abutting surface (16); When the plug-in portion (15) is inserted into the installation cavity (2), the abutment surface (16) can abut against the upper portion of the front side surface of the base (1).

8. The hydraulic automatic leveling tool for bulb flat steel according to claim 7, characterized in that: The upper end surface of the base (1) is provided with a first limiting hole (17) which is connected to the mounting cavity (2), and the upper side surface of the plug-in portion (15) is provided with a second limiting hole (18); When the plug-in portion (15) is inserted into the installation cavity (2), the first limiting hole (17) and the second limiting hole (18) are aligned with each other, and the movement of the plug-in portion (15) in the installation cavity (2) is limited by inserting the limiting rod.

9. The hydraulic automatic leveling tool for bulb flat steel according to claim 1, characterized in that: The base (1) comprises: A fixed base plate (19), the lower end surface of which is provided with the clamping protrusion (11) and the mounting portion (12), and the restraining groove (8) is also provided on the fixed base plate (19); The socket (20) is mounted on the fixed base plate (19) via a fixing member, and the restraining grooves (8) are located on both sides of the socket (20).

10. The hydraulic automatic leveling tool for bulb flat steel according to claim 1, characterized in that: The base (1) is also provided with a detection component for controlling the operation of the hydraulic cylinder (5); The detection components include: A detection rod (21) is vertically movably mounted on the fixed arm (3), and the lower end of the detection rod (21) can abut against the upper end surface of the bulb flat steel, and a detection member (22) is movably provided on the upper end of the detection rod (21); a detector (23) mounted on the base (1); During the leveling detection process, since the lower end of the detection rod (21) is against the upper end surface of the bulb flat steel, as the higher bulb flat steel moves downward, the detection rod (21) also moves downward until the detection member (22) detects the reference point set on the base (1), and the hydraulic cylinder (5) stops working, thus achieving the leveling operation between the two bulb flat steels.

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