Tower crane standard knot main angle steel machining tool and machining method for horizontal boring machine

Abstract

The invention discloses a tower crane standard knot main angle steel machining tool for a horizontal boring machine, which comprises a plurality of positioning devices, a supporting cross beam and a pressing device, the positioning devices are arranged on a workbench of the horizontal boring machine, and the positioning devices are arranged left and right at intervals; the supporting cross beam is horizontally arranged on the rear sides of the multiple positioning devices. The bottoms of the pressing devices are connected with a workbench of the horizontal boring machine, and the middles of the pressing devices are connected with the supporting cross beam. The processing method comprises the following steps: S1, fixing the length; s2, processing one surface of the end part; s3, processing the middle position; and S4, processing the other surface of the end part. The method can meet the machining requirements of standard knot main angle steel of different specifications, reduces the cost, and is high in machining precision and good in quality.

Description

Technical Field

[0001] The invention belongs to the technical field of tower crane standard section processing, and in particular relates to a tower crane standard section main steel processing tool and a processing method for the tool used for a horizontal boring machine. Background Art

[0002] Tower crane is a mechanical equipment used for lifting and moving heavy objects. It is widely used in construction, bridges, power plants, shipbuilding and nuclear power plants. It transports objects from one place to another through vertical and horizontal movement, greatly improving work efficiency and safety. The tower body is the main supporting part of the tower crane. It consists of multiple segments, which are connected by pins to ensure overall stability and safety. The segments of the tower body are divided into standard segments and non-standard segments. Standard segments refer to segments with the same shape and size, which are convenient for mass production and standardized management.

[0003] The main steel of the tower crane standard section is designed to be 3 meters long and is processed by a special machine tool. The special machine tool is equipped with 5 power heads, two of which are end milling power heads and the other three are boring power heads. When working, the angle steel is clamped on the positioning block, and the milling power head performs end milling on the angle steel to ensure that the angle steel is 3 meters long. After milling, the other three boring power heads drill three holes in the angle steel.

[0004] At present, the position of the drilling and boring power head of the horizontal boring machine is fixed, so it can only process the main steel of the standard section of the tower crane of one specification. Since the relative sizes of the three holes of the main steel of the standard section of tower cranes of different tonnages are different, and the worktable travel of the horizontal boring machine is limited, it cannot meet the processing requirements of products of different specifications. For main steels of different specifications, a new set of special machines needs to be purchased, which is extremely costly. Summary of the invention

[0005] The object of the present invention is to provide a tower crane standard section main steel processing tool and processing method for a horizontal boring machine, so as to solve the technical problems raised in the above-mentioned background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A tower crane standard section main steel processing tool for a horizontal boring machine comprises a positioning device, a supporting crossbeam, and a clamping device. The positioning device is arranged on the workbench of the horizontal boring machine, and multiple positioning devices are arranged at intervals on the left and right; the supporting crossbeam is horizontally arranged at the rear of multiple positioning devices; multiple clamping devices are horizontally arranged at intervals on the left and right, and their bottoms are arranged on the top surface of the workbench of the horizontal boring machine, and the middle part is connected to the supporting crossbeam.

[0008] Furthermore, the positioning device includes a mounting plate, a support plate, an upper positioning block, and a lower positioning block; the mounting plate is horizontally arranged front and back, and its bottom surface is arranged on the top surface of the workbench of the horizontal boring machine; the support plate is vertically arranged in the middle of the top surface of the mounting plate; the upper positioning block is arranged at the lower part of the front side surface of the support plate; the lower positioning block is arranged on the top surface of the mounting plate, located in front of the support plate.

[0009] Furthermore, the supporting cross beam is a corner plate structure, the bottom surface of the horizontal plane is connected to the rear side of the top surface of the mounting plate, and the rear side of the vertical plane is connected to the rear side surface of the support plate.

[0010] Furthermore, it also includes a positioning shaft; a horizontally penetrating mounting hole is opened on the rear side of the supporting crossbeam; the positioning shaft is horizontally arranged front and back and is movably connected with the mounting hole.

[0011] Furthermore, the clamping device includes a connecting mechanism, a flipping mechanism, and a clamping mechanism; the connecting mechanism includes a horizontal plate, a vertical plate, a fixed plate, and a connecting block. The horizontal plate is horizontally arranged front and back, and its bottom surface is arranged on the top surface of the workbench of the horizontal boring machine; the vertical plate is vertically arranged in the middle of the top surface of the horizontal plate; the connecting block is fixedly arranged on the top surface of the vertical plate; the fixed plate is vertically arranged, and the upper part of its front side surface is fixedly connected to the rear side surface of the connecting block. The fixed plate and the top surface of the horizontal plate and the rear side surface of the vertical plate are spaced from each other to form an L-shaped channel for clamping the supporting beam.

[0012] Furthermore, the flipping mechanism includes a flipping arm and a rib; there are two flipping arms, which are spaced apart from each other, and the opposite sides of the upper parts of the two flipping arms are hinged to the left and right sides of the connecting block, and the lower parts are bent downward; the rib is arranged between the two flipping arms, and its two ends are fixedly connected to the opposite sides of the two flipping arms.

[0013] Furthermore, through fixing holes are provided on the left and right sides of the front end of the horizontal plate; connecting holes are provided on the left and right side walls of the lower ends of the two flip arms; and the connecting holes and the fixing holes are connected by positioning pins.

[0014] Furthermore, the tightening mechanism includes a cylinder and a push block; the cylinder is vertically installed on the top surface of the middle part of the two flip arms, and its telescopic rod passes downward between the two flip arms; the push block is vertically arranged on the bottom surface of the telescopic rod of the cylinder.

[0015] Furthermore, the clamping devices are provided with three.

[0016] A method for processing main steel of a tower crane standard section for a horizontal boring machine comprises the following steps:

[0017] S1 Fixed length: The main steel is processed by milling machine to a fixed length of 3 meters;

[0018] S2 end one-side processing: Place the main steel after fixed length on the positioning device, first move the main steel position so that the hole to be processed on the vertical surface of the main steel is roughly aligned with the boring spindle of the horizontal boring machine, and then fine-tune the entire processing tooling through the workbench of the horizontal boring machine so that the hole is completely aligned with the boring spindle; press and fix the main steel on the positioning device through the clamping device, start the boring spindle of the horizontal boring machine, and drill and bore the hole at this position;

[0019] S3 Middle position processing: Open the clamping device, move the main steel until the end face contacts the positioning shaft, so that the middle part of the main steel moves to the spindle position of the horizontal boring machine, clamp the main steel through the clamping device, and then fine-tune the position of the entire device through the workbench of the horizontal boring machine, so that the hole to be processed in the middle part of the main steel is completely aligned with the boring spindle; start the boring spindle, and drill and bore the hole in the middle part of the main steel;

[0020] Processing of the other side of the S4 end: open the clamping device, turn and flip the main steel, turn the original horizontal surface of the main steel into a vertical surface, and place the main steel on the positioning device. At the same time, retract the positioning shaft into the mounting hole so that the hole to be processed on the vertical surface of the main steel is roughly aligned with the boring spindle of the horizontal boring machine, and then fine-tune the entire processing tooling through the worktable of the horizontal boring machine to fully align the hole with the boring spindle; clamp and fix the main steel on the positioning device through the clamping device, start the boring spindle of the horizontal boring machine, and drill and bore the hole at this position to complete the drilling and boring processing of the three positions of the main steel.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a positioning device, a supporting beam and a clamping device. The main steel is installed on the positioning device through the clamping device, and the main steel is drilled and bored at the position where it needs to be processed through the boring spindle of the horizontal boring machine. The processing requirements of the main steel of standard sections of different specifications can be met, the cost can be reduced, the processing accuracy is high, and the quality is good.

[0023] 2. In the positioning device of the present invention, by providing the first positioning block and the second positioning block, the influence of the right angle error can be eliminated, and the size and shape and position tolerance of the product after processing can be maximized.

[0024] 3. In the clamping device of the present invention, the main steel can be firmly fixed on the positioning device through the flip arm, cylinder and push block, preventing the main steel from moving during the processing, ensuring the processing accuracy and product quality. At the same time, by setting three clamping devices, they can be selected for use according to different processing steps, thereby improving the flexibility of the equipment.

[0025] 4. The present invention ensures structural stability, prevents equipment movement, and ensures processing accuracy by arranging a supporting beam on the other side of the positioning device. At the same time, by arranging a positioning axis on the supporting beam, the middle position of the main steel can be quickly located when processing the middle hole of the main steel, thereby improving work efficiency.

[0026] 5. In the processing method of the present invention, by cooperating the processing tool with the worktable of the horizontal boring machine, it is possible to solve the problem that the worktable stroke of the boring machine is insufficient, so that different specifications of standard section angle steels require different boring machines for processing. By adjusting the main steel on the positioning device, the same equipment can be used to process holes in different positions of main steels of standard sections with different specifications, which is simple to operate and has high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the positioning device of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the supporting beam of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the clamping device of the present invention;

[0031] Figure 5 is a side view of the clamping device of the present invention;

[0032] Figure 6 is a schematic diagram of S1 in the processing method of the present invention;

[0033] Figure 7 is a schematic diagram of S2 in the processing method of the present invention;

[0034] Figure 8 is a schematic diagram of S3 in the processing method of the present invention;

[0035] In the accompanying drawings, 1-positioning device; 11-mounting plate; 12-support plate; 13-upper positioning block; 14-lower positioning block;

[0036] 2-supporting beam; 21-positioning shaft;

[0037] 3-Compression device;

[0038] 31-connecting mechanism; 311-horizontal plate; 312-vertical plate; 313-fixing plate; 314-connecting block; 314-fixing hole;

[0039] 32-turning mechanism; 321-turning arm; 322-rib; 323-connecting hole; 324-positioning pin;

[0040] 33-tightening mechanism; 331-cylinder; 332-top block;

[0041] 4-Workbench; 5-Boring spindle. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0043] Example 1

[0044] like Figure 1-5 As shown, a processing tool for tower crane standard section main steel for horizontal boring machine includes a positioning device 1, a supporting beam 2, and a clamping device 3. The positioning device 1 is arranged on the workbench 4 of the horizontal boring machine, and multiple positioning devices 1 are arranged at intervals on the left and right; the supporting beam 2 is arranged horizontally on the rear side of multiple positioning devices 1; multiple clamping devices 3 are arranged horizontally on the left and right, and the bottom is arranged on the top surface of the workbench 4 of the horizontal boring machine, and the middle is connected to the supporting beam 2. The main steel is placed on the front side of the positioning block, fixed by the clamping device 3, and then the boring spindle 5 of the boring machine is used to drill and bore the position where the main steel needs to be opened. By moving the main steel on the positioning device 1, different positions of the main steel are aligned with the boring spindle 5 of the boring machine, so that different positions of the main steel are drilled and bored.

[0045] like Figure 2 As shown, the positioning device 1 includes a mounting plate 11, a support plate 12, a mounting plate 11, an upper positioning block 13, and a lower positioning block 14; the mounting plate 11 is horizontally arranged front and back, and its bottom surface is arranged on the top surface of the workbench 4 of the horizontal boring machine; the support plate 12 is vertically arranged in the middle of the top surface of the mounting plate 11; the mounting plate 11 and the support plate 12 are integrally formed to form an inverted T-shape to ensure the rigidity and stability of the positioning device 1 structure, the rear side of the inverted T-shape is used to install the supporting beam 2, and the front side is used to install the main steel; the upper positioning block 13 is arranged at the lower part of the front side surface of the support plate 12; the lower positioning block 14 is arranged on the top surface of the mounting plate 11, in front of the support plate 12. Due to the inverted T-shaped structure formed by the mounting plate 11 and the support plate 12, it is difficult to control the accuracy of the right angle during the processing, and it cannot be guaranteed that a standard right angle of 10° is formed between the mounting plate 11 and the support plate 12. Direct placement of the main steel will lead to large processing errors during drilling and boring. By setting the first positioning block and the second positioning block, it can be ensured that a 90° right angle is formed between the front side surface of the first positioning block and the top surface of the second positioning block, thereby ensuring the processing accuracy of the main steel.

[0046] like Figure 3As shown, the supporting crossbeam 2 is a gusset structure, the bottom of the horizontal plane is connected to the rear side of the top surface of the mounting plate 11, and the rear side of the vertical plane is connected to the rear side surface of the support plate 12. The supporting crossbeam 2 is used to bear and disperse the processing force generated, ensure structural stability, prevent equipment movement, and ensure processing accuracy.

[0047] like Figure 4-5 As shown, it also includes a positioning shaft 21; a horizontal through-mounting hole is opened at the rear side of the supporting crossbeam 2; the positioning shaft 21 is horizontally arranged in front and back and is movably connected with the mounting hole. The positioning shaft 21 is used to limit the moving stroke of the main steel. When processing the hole in the middle part of the main steel, the right end of the main steel is in contact with the positioning shaft 21. At this time, the middle part of the main steel is aligned with the boring spindle 5 of the horizontal boring machine. After the main steel is turned and flipped, the positioning shaft 21 is retracted into the mounting hole to prevent movement interference with the main steel.

[0048] like Figure 4-5 As shown, the clamping device 3 includes a connecting mechanism 31, a turning mechanism 32, and a clamping mechanism 33; the connecting mechanism 31 includes a horizontal plate 311, a vertical plate 312, a fixing plate 313, and a connecting block 314. The horizontal plate 311 is horizontally arranged front and back, and its bottom surface is arranged on the top surface of the working table 4 of the horizontal boring machine, and the top surface is flush with the top surface of the mounting plate 11; the vertical plate 312 is vertically arranged in the middle of the top surface of the horizontal plate 311; the horizontal plate 311 and the vertical plate 312 are integrally formed to form an inverted T The supporting beam 2 is installed together with the rear side of the inverted T-shaped structure and the rear side of the mounting plate 11; the connecting block 314 is fixedly arranged on the top surface of the vertical plate 312; the fixing plate 313 is vertically arranged, and the upper part of the front side surface thereof is fixedly connected with the rear side surface of the connecting block 314, the fixing plate 313 and the connecting block 314 are integrally formed, and the fixing plate 313 and the top surface of the horizontal plate 311 and the rear side surface of the vertical plate 312 are spaced from each other to form an L-shaped channel for clamping the supporting beam 2 to prevent the supporting beam 2 from moving.

[0049] like Figure 4-5 As shown, the flip mechanism 32 includes a flip arm 321 and a rib 322; two flip arms 321 are provided, and the two flip arms 321 are spaced apart from each other. Horizontally penetrating through holes are correspondingly provided on the upper parts of the two flip arms 321 and the connecting block 314. The flip arms 321 and the connecting block 314 are hinged by a pin, and the lower parts of the flip arms 321 are bent downward; the rib 322 is provided between the two flip arms 321, and its two ends are fixedly connected to the opposite sides of the two flip arms 321. By rotating the flip arms 321 downward based on the connecting block 314, the flip arms 321 drive the pressing mechanism to rotate downward.

[0050] like Figure 4-5As shown, the front end left and right sides of the horizontal plate 311 are provided with through fixing holes 314; the left and right side walls of the lower ends of the two flip arms 321 are provided with connecting holes 323; the connecting holes 323 and the fixing holes 314 are connected by positioning pins 324. When the flip arm 321 flips downward, the spacer between the lower parts of the two flip arms 321 is sleeved on the front end of the horizontal plate 311. At this time, the connecting holes 323 of the flip arm 321 are aligned with the fixing holes 314 of the horizontal plate 311. The connecting holes 323 and the fixing holes 314 are inserted through the pin shaft to fix the flip arm 321 and the horizontal plate 311, so as to prevent the flip arm 321 from flipping upward due to the reaction force when the tightening mechanism 33 tightens the main steel.

[0051] like Figure 4-5 As shown, the tightening mechanism 33 includes a cylinder 331 and a top block 332; the cylinder 331 is vertically installed on the top surface of the middle part of the two flip arms 321, and its telescopic rod passes downward between the two flip arms 321; the top block 332 is an isosceles trapezoidal structure, and the sum of the inner angles of the two waists is °, and its lower base is vertically connected to the ground with the telescopic rod of the cylinder 331. When the cylinder 331 drives the top block 332 to move, the two waists of the top block 332 respectively support the vertical surface and horizontal surface of the main steel, thereby fixing the main steel.

[0052] like Figure 1 As shown, there are three clamping devices 3, which are staggered with the positioning device 1. While ensuring the fixing effect on the main steel, one or more clamping devices 3 can be selected to be clamped and released as needed when drilling at different positions of the main steel.

[0053] Example 2

[0054] A method for processing main steel of a tower crane standard section comprises the following steps:

[0055] S1 Fixed length: The main steel is processed by milling machine to the specified length of the tower crane standard section;

[0056] S2 end side processing: Figure 6As shown, the main steel is placed on the positioning device 1, so that the vertical surface and horizontal surface of the main steel are placed on the first positioning block and the second positioning block on the positioning device 1. Since the boring spindle 5 of the boring machine can only move forward and backward but cannot move left and right, and its worktable 4 can move within a certain stroke, the main steel is first moved on multiple positioning devices 1, and the position of the main steel is roughly adjusted so that the hole to be processed on the vertical surface of the main steel is roughly aligned with the boring spindle 5 of the horizontal boring machine. Then, the worktable 4 of the horizontal boring machine is moved to drive the main steel to move, and the entire device is finely adjusted so that the hole of the main steel is completely aligned with the boring spindle 5. The main steel is pressed by the clamping device 3. At this time, the right side of the main steel is The side does not correspond to the position of the clamping device 3 on the far right, so in this step, it is only necessary to clamp the main steel with the two clamping devices 3 on the left; the flip arm 321 of the clamping device 3 is rotated downward to move the opposite side of the two flip arms 321 to the left and right sides of the cross plate 311, and the connecting hole 323 of the flip arm 321 and the fixing hole 314 of the cross bar are connected through the positioning pin 324, and the cylinder 331 is started, and the piston rod of the cylinder 331 is extended to drive the top block 332 to move, and the two waists of the top block 332 respectively support the horizontal and vertical surfaces of the main steel, thereby clamping and fixing the main steel on the positioning device 1; the boring spindle 5 of the horizontal boring machine is started to drill and bore the hole at this position to complete the processing of the hole;

[0057] S3 intermediate position processing: Figure 7 As shown, the cylinder 331 of the clamping device 3 is started, and the piston rod of the cylinder 331 is contracted, so that the top block 332 no longer supports the main steel, and then the pin shaft is removed, so that the flip arm 321 and the cross plate 311 are no longer connected, and the flip arm 321 is rotated upward to open the clamping device 3, so that the clamping device 3 no longer fixes the main steel, and the main steel is moved on the positioning device 1 until the right end face contacts the positioning shaft 21. At this time, the middle hole part of the main steel moves to the spindle position of the horizontal boring machine. At this time, the main steel is all located at the positions of the three clamping devices 3. Therefore, in this step, all three clamping devices 3 are moved as described above. The main steel is pressed, and then the position of the entire device is finely adjusted through the workbench 4 of the horizontal boring machine, so that the hole to be processed in the middle part of the main steel is completely aligned with the boring spindle 5; the boring spindle 5 is started, and the hole in the middle part of the main steel is drilled and bored. Since the interval between the holes in the middle part is not large, the stroke of the workbench 4 of the horizontal boring machine can meet the position adjustment of the middle hole of the main steel; after the boring spindle 5 processes the first hole in the middle part of the main steel, the workbench 4 is moved again to align the next hole in the middle part with the boring spindle 5, and the hole is drilled and bored. In this way, all the holes in the middle part are processed;

[0058] S4 end processing on the other side: Figure 8As shown, the clamping device 3 is opened in the above manner, so that the clamping device 3 no longer fixes the main steel, the main steel is turned 180° and flipped 90°, so that the original horizontal plane of the main steel is turned into a vertical plane, and the main steel is placed on the positioning device 1, and the positioning shaft 21 is retracted into the mounting hole to prevent the positioning shaft 21 from interfering with the main steel; the main steel is moved on multiple positioning devices 1, and the position of the main steel is roughly adjusted so that the hole to be processed on the vertical plane of the main steel at this time is roughly aligned with the boring spindle 5 of the horizontal boring machine, and then the workbench 4 of the horizontal boring machine is used. Move, drive the main steel to move, and fine-tune the entire device to make the hole of the main steel completely aligned with the boring spindle 5; at this time, the left position of the main steel does not correspond to the leftmost clamping device 3, so in this step, only the two clamping devices 3 on the right need to be used to clamp the main steel in the above manner; then use the workbench 4 of the horizontal boring machine to fine-tune the position of the entire device to make the hole on the vertical surface completely aligned with the boring spindle 5; start the boring spindle 5, drill and bore the hole at this position, and the drilling and boring processing of the three positions of the main steel can be completed.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tower crane standard section main steel processing tool for a horizontal boring machine, comprising a positioning device, a supporting beam, and a clamping device, characterized in that: The positioning device is arranged on the workbench of the horizontal boring machine, and multiple devices are arranged at intervals on the left and right; the supporting beam is horizontally arranged on the rear side of multiple positioning devices; the clamping device is horizontally arranged on the left and right, and multiple devices are arranged at intervals on the left and right, with their bottoms arranged on the top surface of the workbench of the horizontal boring machine and the middle parts connected to the supporting beam.

2. The tooling for processing main steel of standard section of tower crane for horizontal boring machine according to claim 1, characterized in that: The positioning device includes a mounting plate, a support plate, an upper positioning block, and a lower positioning block; the mounting plate is horizontally arranged front and back, and its bottom surface is arranged on the top surface of the workbench of the horizontal boring machine; the support plate is vertically arranged in the middle of the top surface of the mounting plate; the upper positioning block is arranged at the lower part of the front side surface of the support plate; the lower positioning block is arranged on the top surface of the mounting plate, located in front of the support plate.

3. The tooling for processing main steel of standard section of tower crane for horizontal boring machine according to claim 2, characterized in that: The supporting crossbeam is a corner plate structure, the bottom surface of the horizontal surface is connected to the rear side of the top surface of the mounting plate, and the rear side of the vertical surface is connected to the rear side surface of the supporting plate.

4. The tooling for processing main steel of standard section of tower crane for horizontal boring machine according to claim 3 is characterized in that: It also includes a positioning shaft; a horizontally penetrating mounting hole is opened on the rear side of the supporting crossbeam; the positioning shaft is horizontally arranged front and back and is movably connected with the mounting hole.

5. The tooling for processing main steel of standard section of tower crane for horizontal boring machine according to claim 4, characterized in that: The clamping device includes a connecting mechanism, a flipping mechanism, and a clamping mechanism; the connecting mechanism includes a horizontal plate, a vertical plate, a fixed plate, and a connecting block. The horizontal plate is horizontally arranged front and back, and its bottom surface is arranged on the top surface of the workbench of the horizontal boring machine; the vertical plate is vertically arranged in the middle of the top surface of the horizontal plate; the connecting block is fixedly arranged on the top surface of the vertical plate; the fixed plate is vertically arranged, and the upper part of its front side surface is fixedly connected to the rear side surface of the connecting block. The fixed plate is spaced from the top surface of the horizontal plate and the rear side surface of the vertical plate to form an L-shaped channel for clamping the supporting beam.

6. The tower crane standard section main steel processing tool for horizontal boring machine according to claim 5, characterized in that: The flipping mechanism includes a flipping arm and a rib; there are two flipping arms, which are spaced apart from each other, the upper opposite sides of the two flipping arms are hinged to the left and right sides of the connecting block, and the lower part is bent downward; the rib is arranged between the two flipping arms, and its two ends are fixedly connected to the opposite sides of the two flipping arms.

7. The tooling for processing main steel of standard section of tower crane for horizontal boring machine according to claim 6, characterized in that: The left and right sides of the front end of the horizontal plate are provided with through fixing holes; the left and right side walls of the lower ends of the two flip arms are provided with connecting holes; the connecting holes and the fixing holes are connected by positioning pins.

8. The tower crane standard section main steel processing tool for horizontal boring machine according to claim 7, characterized in that: The tightening mechanism comprises a cylinder and a push block; the cylinder is vertically installed on the top surface of the middle part of the two flip arms, and its telescopic rod passes downward between the two flip arms; the push block is vertically arranged on the bottom surface of the telescopic rod of the cylinder.

9. The tooling for processing main steel of standard section of tower crane for horizontal boring machine according to claim 8, characterized in that: The pressing devices are provided with three.

10. A method for processing tower crane standard section main steel for horizontal boring machine, using the processing tool as claimed in claim 9, characterized in that: The following steps are involved: S1 Fixed length: The main steel is processed by milling machine to a fixed length of 3 meters; S2 end one-side processing: Place the main steel after fixed length on the positioning device, first move the main steel position so that the hole to be processed on the vertical surface of the main steel is roughly aligned with the boring spindle of the horizontal boring machine, and then fine-tune the entire processing tooling through the workbench of the horizontal boring machine so that the hole is completely aligned with the boring spindle; press and fix the main steel on the positioning device through the clamping device, start the boring spindle of the horizontal boring machine, and drill and bore the hole at this position; S3 middle position processing: open the clamping device, move the main steel until the end face contacts the positioning shaft, so that the middle part of the main steel moves to the spindle position of the horizontal boring machine, clamp the main steel through the clamping device, and then fine-tune the position of the entire device through the workbench of the horizontal boring machine, so that the hole to be processed in the middle part of the main steel is completely aligned with the boring spindle; Start the boring spindle and drill the hole in the middle part of the main steel; Processing of the other side of the S4 end: open the clamping device, turn and flip the main steel, turn the original horizontal surface of the main steel into a vertical surface, and place the main steel on the positioning device. At the same time, retract the positioning shaft into the mounting hole so that the hole to be processed on the vertical surface of the main steel is roughly aligned with the boring spindle of the horizontal boring machine, and then fine-tune the entire processing tooling through the worktable of the horizontal boring machine to fully align the hole with the boring spindle; clamp and fix the main steel on the positioning device through the clamping device, start the boring spindle of the horizontal boring machine, and drill and bore the hole at this position to complete the drilling and boring processing of the three positions of the main steel.

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