Precise punching machining equipment for steel structure manufacturing

Abstract

The invention provides precise punching machining equipment for steel structure manufacturing, and relates to the technical field of steel structure manufacturing, the precise punching machining equipment comprises a punching table, a fixing cylinder is fixedly mounted on the punching table, limiting grooves are uniformly formed in the side wall of the fixing cylinder, a U-shaped frame is fixedly mounted on the punching table and the fixing cylinder, and an inner groove is formed in the U-shaped frame; two blocking pieces are symmetrically and fixedly installed at the lower end of the U-shaped frame, a hydraulic oil cylinder is fixedly installed at the upper end of the punching table, an electric telescopic rod is installed at the output end of the hydraulic oil cylinder, and a positioning mechanism is fixedly installed on the side wall of the electric telescopic rod. The positioning mechanism comprises L-shaped rods, the four L-shaped rods are evenly and fixedly installed on the side wall of the electric telescopic rod, and the two L-shaped rods located in the front-back direction are slidably installed in the two inner grooves, so that the equipment does not need to be fixed firstly when punching a steel structure workpiece, fixing can be completed in the punching process, the preparation time is saved, continuous machining can be achieved, and the punching efficiency is improved. And the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure manufacturing, and more specifically, particularly relates to a precision punching processing equipment used for steel structure manufacturing. Background Art

[0002] Steel structure refers to a composite steel structure component that can bear and transfer loads and is made of steel plates, angle steels, channel steels, I-beams, welded or hot-rolled H-beams that are cold-bent or welded and connected through connectors. During the production and processing of steel structures, it is necessary to position and punch holes.

[0003] However, the existing precision drilling equipment for steel structure manufacturing still has the following shortcomings when used:

[0004] 1. During the drilling process of existing equipment, the drilling part is easily disturbed by impurities and dust, which affects the drilling precision and accuracy and reduces the overall processing quality of steel structure workpieces;

[0005] 2. Existing equipment usually requires a separate fixed operation before drilling, which not only takes up preparation time, but also makes it difficult to achieve continuous processing, resulting in low production efficiency;

[0006] 3. The cooling effect of existing equipment is poor, which causes thermal expansion of the tool and steel structure workpiece during the drilling process, affecting the drilling size accuracy and consistency. At the same time, debris and impurities are easily adhered to the surface of the tool, shortening the tool life.

[0007] In view of the existing structure and deficiencies, research and improvements are conducted to provide a precision drilling processing equipment for steel structure manufacturing. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a precision drilling processing equipment for steel structure manufacturing to solve the above problems.

[0009] A precision punching processing equipment for steel structure manufacturing, comprising a punching table, a fixed cylinder is fixedly installed on the punching table, and limiting grooves are evenly arranged on the side wall of the fixed cylinder. A U-shaped frame is fixedly installed on the punching table and the fixed cylinder, an inner groove is arranged inside the U-shaped frame, and two baffles are symmetrically fixedly installed on the lower end of the U-shaped frame. A hydraulic cylinder is fixedly installed on the upper end of the punching table, an electric telescopic rod is installed on the output end of the hydraulic cylinder, and a positioning mechanism is fixedly installed on the side wall of the electric telescopic rod;

[0010] The positioning mechanism comprises an L-shaped rod, four of the L-shaped rods are evenly and fixedly mounted on the side wall of the electric telescopic rod, and two of the L-shaped rods located in the front-rear direction are slidably mounted in two inner grooves.

[0011] Preferably, springs are fixedly installed at the lower ends of the four L-shaped rods, connecting strips are sleeved on the four L-shaped rods, first slots are opened inside the four connecting strips, and the four L-shaped rods are slidably installed in the four first slots respectively.

[0012] Preferably, one end of the four springs away from the L-shaped rod is fixedly connected to the inner walls of the four first slots respectively, the lower ends of the four connecting strips are fixedly installed with fixing strips, the four fixing strips are provided with sliding grooves, the insides of the four sliding grooves are slidably installed with sliders, and the lower ends of the four sliders are fixedly installed with fixed blocks.

[0013] Preferably, a driving motor is fixedly mounted on the free end of the electric telescopic rod, a liquid storage tank is fixedly mounted on the upper end of the driving motor, a box cover is installed inside the liquid storage tank, and a second slot is symmetrically opened on the box cover.

[0014] Preferably, connecting pipes are symmetrically installed inside the liquid storage tank, the two blocking pieces are respectively inserted into the two second slots and fit tightly with the two connecting pipes, and a rotating shaft is installed on the output end of the driving motor.

[0015] Preferably, strip-shaped mounting grooves are symmetrically provided on the side wall of the rotating shaft, a threaded ring is threadedly mounted on the rotating shaft, and a drill bit is slidably mounted inside the rotating shaft.

[0016] Preferably, side blocks are symmetrically fixedly installed on the side walls of the drill bit, and flip blocks are rotatably installed inside the two side blocks. A liquid collecting tray is fixedly sleeved on the drill bit.

[0017] Preferably, holes and grooves are evenly formed on the drill bit, the lowermost end of the inner wall of the liquid collecting tray is flush with the holes and grooves, and a fixing ring is rotatably mounted on the liquid collecting tray.

[0018] Preferably, column grooves are symmetrically provided on the fixing ring, the two connecting pipes are fixedly installed in the two column grooves respectively, and fan blades are fixedly installed on the side wall of the liquid collecting tray.

[0019] Preferably, arc-shaped bars are fixedly installed between two of the four connecting bars, protective cloths are equidistantly installed at the lower ends of the four arc-shaped bars, and a counterweight is fixedly installed at the lower end of each protective cloth.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, a hydraulic cylinder, an electric telescopic rod, a driving motor, a drill bit, a liquid collecting tray and a fan blade are provided. Under the action of the driving motor, the drill bit is driven to rotate, and at this time, the drill bit drives the liquid collecting tray fixed thereto to rotate, and the fan blade is driven to rotate under the rotation of the liquid collecting tray. When the fan blade rotates, an airflow is formed, and the airflow blows toward the drill bit and the punching part of the steel structure workpiece, thereby keeping the punching part of the steel structure workpiece clean. At this time, the hydraulic cylinder can be started, and the electric telescopic rod will be extended and retracted under the action of the hydraulic cylinder. At this time, the electric telescopic rod will drive the driving motor to move downward, thereby completing the punching of the steel structure workpiece. The equipment can reduce the interference of impurities and dust on the punching process, thereby improving the precision and accuracy of the punching, and improving the overall processing quality of the steel structure workpiece.

[0022] In the present invention, an L-shaped rod, a spring, a fixing bar, a fixing block and a drill bit are provided. The fixing block is driven to move downward when the fixing bar moves. Since the fixing block is located below the drill bit, the four fixing blocks will first contact the steel structure workpiece to fix it. As the L-shaped rod continues to move downward, the spring on the L-shaped rod will be compressed, and the squeezing force of the fixing block on the steel structure workpiece will increase accordingly, so that the device does not need to fix the steel structure workpiece before drilling a hole in it, and the fixing can be completed during the drilling process, which saves preparation time, can realize continuous processing, and greatly improves production efficiency.

[0023] In the present invention, by designing the fixing block as an adjustable structure, the device can flexibly adjust the position of the fixing point according to different specifications of steel structure workpieces, adapt to workpieces of various sizes and shapes, and increase the versatility of the device; and when the punching surface of the steel structure workpiece is uneven, it can still be fixed by the compression deformation of the four springs to different degrees, further expanding the scope of application of the device;

[0024] In the present invention, by providing a fixed block, a protective cloth and a counterweight block, when the fixed block contacts the steel structure workpiece, the counterweight block will drive the protective cloth to stretch under the action of gravity, and the counterweight block will fit the processing surface of the steel structure workpiece, and multiple protective cloths will shield the processing area, which can effectively prevent debris, sparks and other splashes generated during the processing from causing harm to the operator, thereby improving the safety of the workplace;

[0025] In the present invention, by providing a baffle, a liquid storage tank, a connecting pipe, a drill bit, a liquid collecting tray and a hole slot, when the two baffles are moved to the upper side where they are not blocked by the connecting pipe, the coolant in the liquid storage tank will flow into the liquid collecting tray along the connecting pipe, and then flow into the hole slot to cool the drill bit. The cooling effect of the coolant helps to reduce the thermal expansion of the tool and the steel structure workpiece, making the drilling size more accurate, improving the processing accuracy and consistency, and the flow of the coolant can remove the debris and impurities adhering to the drill bit, preventing them from accumulating on the surface of the drill bit and affecting the processing effect and tool life.

[0026] In the present invention, by providing a rotating shaft, a strip-shaped mounting groove, a threaded ring, a drill bit, a side block and a flip block, when the drill bit needs to be removed, the threaded ring can be rotated downward on the rotating shaft, and then the two flip blocks can be flipped downward inside the two side blocks. When the two flip blocks are flipped from a horizontal position with the side blocks to a vertical position, the drill bit and the side blocks can be taken out from the rotating shaft and the strip-shaped mounting groove, so that the equipment can be easily maintained, repaired or replaced during use, thereby reducing equipment downtime and improving equipment availability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 2 It is a schematic diagram of the U-shaped frame connection structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the L-shaped rod connection structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the explosion structure of the fixing strip connection of the present invention;

[0031] Figure 5 It is a schematic diagram of the explosion structure of the fixed block connection of the present invention;

[0032] Figure 6 It is a schematic diagram of the explosion structure of the liquid storage tank connection of the present invention;

[0033] Figure 7 It is a schematic diagram of the rotating shaft connection structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the explosion structure of the side block connection of the present invention.

[0035] In the figure, the correspondence between the structural names and the reference numerals is: 11, punching table; 12, fixing cylinder; 13, limiting groove; 14, U-shaped frame; 15, inner groove; 16, baffle; 17, hydraulic cylinder; 18, electric telescopic rod; 21, L-shaped rod; 22, spring; 23, connecting strip; 24, first slot; 25, fixing strip; 26, slide groove; 27, slider; 28, fixing block; 31, driving motor; 32, liquid storage tank; 33, tank cover; 34, connecting pipe; 35, rotating shaft; 36, strip mounting groove; 37, threaded ring; 38, second slot; 41, drill bit; 42, side block; 43, flip block; 44, liquid collecting tray; 45, hole groove; 46, fixing ring; 47, column groove; 48, fan blade; 51, arc strip; 52, protective cloth; 53, counterweight block. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] See also Figure 1-Figure 8 The present invention provides a precision punching processing equipment for steel structure manufacturing, including a punching table 11, a fixed cylinder 12 is fixedly installed on the punching table 11, and a limiting groove 13 is evenly arranged on the side wall of the fixed cylinder 12, a U-shaped frame 14 is fixedly installed on the punching table 11 and the fixed cylinder 12, an inner groove 15 is arranged inside the U-shaped frame 14, and two baffles 16 are symmetrically fixedly installed at the lower end of the U-shaped frame 14, a hydraulic cylinder 17 is fixedly installed at the upper end of the punching table 11, an electric telescopic rod 18 is installed on the output end of the hydraulic cylinder 17, and a positioning mechanism is fixedly installed on the side wall of the electric telescopic rod 18;

[0038] The positioning mechanism includes an L-shaped rod 21, four L-shaped rods 21 are evenly fixedly installed on the side wall of the electric telescopic rod 18, two L-shaped rods 21 located in the front and rear directions are slidably installed in the two inner grooves 15, springs 22 are fixedly installed at the lower ends of the four L-shaped rods 21, connecting strips 23 are sleeved on the four L-shaped rods 21, and first slots 24 are opened inside the four connecting strips 23. The four L-shaped rods 21 are respectively slidably installed in the four first slots 24, and the ends of the four springs 22 away from the L-shaped rods 21 are respectively connected to the four first slots 24. 4 inner wall, the lower ends of the four connecting bars 23 are fixedly installed with fixing bars 25, the four fixing bars 25 are provided with slide grooves 26, the four slide grooves 26 are slidably installed with sliders 27, the lower ends of the four sliders 27 are fixedly installed with fixing blocks 28, before use, the fixing blocks 28 can be moved on the fixing bars 25 according to the specifications of the steel structure workpiece, so as to move the four fixing blocks 28 to the four fixing points of the steel structure workpiece, when the electric telescopic rod 18 is telescopically moved downward, it will drive the L-shaped rod 21 fixed thereto to move The L-shaped rod 21 moves downward, and the L-shaped rod 21 drives the connecting bar 23 and the fixing bar 25 to move downward. The movement of the fixing bar 25 drives the fixing block 28 to move downward. Since the fixing block 28 is located below the drill bit 41, the four fixing blocks 28 will first contact the steel workpiece to fix it. As the L-shaped rod 21 continues to move downward, the spring 22 on the L-shaped rod 21 will be compressed. At this time, the squeezing force of the fixing block 28 on the steel workpiece will increase accordingly, so that the device does not need to fix the steel workpiece before punching the hole, and can complete the fixation during the punching process, saving preparation time, enabling continuous processing, and greatly improving production efficiency; and by designing the fixing block 28 as an adjustable structure, the device can flexibly adjust the position of the fixing point according to different specifications of steel workpieces, adapt to workpieces of various sizes and shapes, and increase the versatility of the device; and when the punching surface of the steel workpiece is uneven, it can still be fixed by the different degrees of compression deformation of the four springs 22, further expanding the scope of application of the device;

[0039] A driving motor 31 is fixedly installed on the free end of the electric telescopic rod 18, a liquid storage tank 32 is fixedly installed on the upper end of the driving motor 31, a box cover 33 is installed inside the liquid storage tank 32, a second slot 38 is symmetrically opened on the box cover 33, a connecting pipe 34 is symmetrically installed inside the liquid storage tank 32, two baffles 16 are respectively inserted in the two second slots 38, and are tightly fitted with the two connecting pipes 34, a rotating shaft 35 is installed on the output end of the driving motor 31, a strip mounting groove 36 is symmetrically opened on the side wall of the rotating shaft 35, a threaded ring 37 is threadedly installed on the rotating shaft 35, a drill bit 41 is slidably installed inside the rotating shaft 35, and a side block 42 is symmetrically fixedly installed on the side wall of the drill bit 41, and the two side blocks 4 2 are rotatably installed with flip blocks 43 inside. When the drilling is completed, the drill bit 41 can be driven to move upward by the hydraulic cylinder 17, and then the two blocking pieces 16 will be inserted into the second slot 38 again to complete the shielding of the connecting pipe 34. When the drill bit 41 needs to be removed, the threaded ring 37 can be rotated downward on the rotating shaft 35, and then the two flip blocks 43 can be flipped downward inside the two side blocks 42. When the two flip blocks 43 are flipped from the horizontal position with the side blocks 42 to the vertical position, the drill bit 41 and the side blocks 42 can be taken out from the rotating shaft 35 and the strip-shaped mounting groove 36, so that the equipment can be easily maintained, repaired or replaced during use, reducing equipment downtime and improving equipment availability;

[0040] A liquid collecting tray 44 is fixedly sleeved on the drill bit 41, and holes 45 are evenly opened on the drill bit 41. The lowermost end of the inner wall of the liquid collecting tray 44 is flush with the holes 45. When the driving motor 31 descends, the liquid storage tank 32 will be driven to descend accordingly. At this time, the two baffles 16 located inside the liquid storage tank 32 will slide out of the two second slots 38. When the two baffles 16 move to the upper part that is not blocked by the connecting pipe 34, the coolant inside the liquid storage tank 32 will flow into the liquid collecting tray 44 along the connecting pipe 34, and then flow into the holes 45 to cool the drill bit 41. The cooling effect of the coolant helps to reduce the thermal expansion of the tool and the steel workpiece, making the drilling size more accurate, and improving the processing accuracy and consistency. In addition, the flow of the coolant can remove the debris and impurities adhering to the drill bit 41, preventing them from accumulating on the surface of the drill bit 41 and affecting the processing effect and the tool life.

[0041] A fixing ring 46 is rotatably mounted on the liquid collecting pan 44, and column grooves 47 are symmetrically provided on the fixing ring 46. Two connecting pipes 34 are fixedly mounted in the two column grooves 47, respectively. Fan blades 48 are fixedly mounted on the side wall of the liquid collecting pan 44. When in use, the steel structure workpiece can be placed on the punching table 11, and its punching part is aligned with the drill bit 41 so that the two are on the same vertical line. Then the driving motor 31 can be started, and the drill bit 41 will be driven to rotate accordingly under the action of the driving motor 31. At this time, the drill bit 41 will drive the liquid collecting pan 44 fixed thereto to rotate accordingly, and the liquid collecting pan 44 is The rotation will drive the fan blades 48 to rotate accordingly. When the fan blades 48 rotate, airflow will be formed, and the airflow will blow toward the drill bit 41 and the punching part of the steel structure workpiece, thereby keeping the punching part of the steel structure workpiece clean. At this time, the hydraulic cylinder 17 can be started, and the electric telescopic rod 18 will be extended and retracted under the action of the hydraulic cylinder 17. At this time, the electric telescopic rod 18 will drive the drive motor 31 to move downward, thereby completing the punching of the steel structure workpiece. The equipment can reduce the interference of impurities and dust on the punching process, thereby improving the precision and accuracy of the punching, and improving the overall processing quality of the steel structure workpiece;

[0042] Arc-shaped bars 51 are fixedly installed between the four connecting bars 23, and protective cloths 52 are equidistantly installed at the lower ends of the four arc-shaped bars 51. A counterweight block 53 is fixedly installed at the lower end of each protective cloth 52. When the fixed block 28 contacts the steel structure workpiece, the counterweight block 53 will drive the protective cloth 52 to stretch under the action of gravity. At this time, the counterweight block 53 will fit the processing surface of the steel structure workpiece, and multiple protective cloths 52 will shield the processing area, which can effectively prevent the debris, sparks and other splashes generated during the processing from causing harm to the operator, thereby improving the safety of the workplace.

[0043] Working principle:

[0044] The first step is to place the steel structure workpiece on the punching table 11, align the punching part with the drill bit 41, so that the two are on the same vertical line, and then start the drive motor 31. Under the action of the drive motor 31, the drill bit 41 will be driven to rotate. At this time, the drill bit 41 will drive the liquid collecting tray 44 fixed thereto to rotate, and the rotation of the liquid collecting tray 44 will drive the fan blades 48 to rotate. When the fan blades 48 rotate, airflow will be formed, and the airflow will blow to the drill bit 41 and the punching part of the steel structure workpiece, thereby keeping the punching part of the steel structure workpiece clean. At this time, the hydraulic cylinder 17 can be started, and the electric telescopic rod 18 will be extended and retracted under the action of the hydraulic cylinder 17. At this time, the electric telescopic rod 18 will drive the drive motor 31 to move downward, thereby completing the punching of the steel structure workpiece. The equipment can reduce the interference of impurities and dust on the punching process, thereby improving the precision and accuracy of the punching, and improving the overall processing quality of the steel structure workpiece;

[0045] In the second step, before use, the fixing blocks 28 can be moved on the fixing bar 25 according to the specifications of the steel structure workpiece, so as to move the four fixing blocks 28 to the four fixing points of the steel structure workpiece. When the electric telescopic rod 18 is telescoped and moved downward, it will drive the L-shaped rod 21 fixed thereto to move downward. At this time, the L-shaped rod 21 will drive the connecting bar 23 and the fixing bar 25 to move downward accordingly. The movement of the fixing bar 25 will drive the fixing blocks 28 to move downward. Since the fixing blocks 28 are located below the drill bit 41, the four fixing blocks 28 will first contact with the steel structure workpiece to fix it. As the L-shaped rod 21 continues to move downward, the spring 22 on the L-shaped rod 21 will be released. The fixed block 28 is compressed, and the squeezing force of the steel workpiece by the fixing block 28 will increase accordingly, so that the equipment does not need to fix the steel workpiece before punching the hole, and can complete the fixation during the punching process, saving preparation time, enabling continuous processing, and greatly improving production efficiency; and by designing the fixing block 28 as an adjustable structure, the equipment can flexibly adjust the position of the fixing point according to steel workpieces of different specifications, adapt to workpieces of various sizes and shapes, and increase the versatility of the equipment; and when the punching surface of the steel workpiece is uneven, it can still be fixed by the four springs 22 with different degrees of compression deformation, further expanding the scope of application of the equipment;

[0046] In the third step, when the fixed block 28 contacts the steel structure workpiece, the counterweight block 53 will drive the protective cloth 52 to stretch under the action of gravity. At this time, the counterweight block 53 will fit the processing surface of the steel structure workpiece, and multiple protective cloths 52 will shield the processing area, which can effectively prevent the debris, sparks and other splashes generated during the processing from causing harm to the operator, thereby improving the safety of the workplace;

[0047] Step 4: When the driving motor 31 descends, the liquid storage tank 32 will be driven to descend accordingly. At this time, the two baffles 16 located inside the liquid storage tank 32 will slide out of the two second slots 38. When the two baffles 16 move to the upper position where they are not blocked by the connecting pipe 34, the coolant inside the liquid storage tank 32 will flow into the collecting tray 44 along the connecting pipe 34, and then flow into the hole groove 45 to cool the drill bit 41. The cooling effect of the coolant helps to reduce the thermal expansion of the tool and the steel workpiece, making the drilling size more accurate, and improving the processing accuracy and consistency. In addition, the flow of the coolant can remove the debris and impurities adhering to the drill bit 41, preventing them from accumulating on the surface of the drill bit 41 and affecting the processing effect and tool life.

[0048] In the fifth step, when the drilling is completed, the drill bit 41 can be driven to move upward by the hydraulic cylinder 17, and then the two baffles 16 will be inserted into the second slot 38 again to complete the covering of the connecting pipe 34. When the drill bit 41 needs to be removed, the threaded ring 37 can be rotated downward on the rotating shaft 35, and then the two flip blocks 43 can be flipped downward inside the two side blocks 42. When the two flip blocks 43 are flipped from the horizontal position with the side blocks 42 to the vertical position, the drill bit 41 and the side blocks 42 can be taken out from the rotating shaft 35 and the strip mounting groove 36, so that the equipment can be easily maintained, repaired or replaced during use, thereby reducing equipment downtime and improving equipment availability.

[0049] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A precision punching processing equipment for steel structure manufacturing, comprising a punching table (11), on which a fixing cylinder (12) is fixedly mounted, characterized in that: The side wall of the fixed cylinder (12) is evenly provided with limiting grooves (13); a U-shaped frame (14) is fixedly installed on the punching platform (11) and the fixed cylinder (12); an inner groove (15) is provided inside the U-shaped frame (14); and two baffles (16) are symmetrically fixedly installed at the lower end of the U-shaped frame (14); A hydraulic cylinder (17) is fixedly mounted on the upper end of the punching platform (11), an electric telescopic rod (18) is mounted on the output end of the hydraulic cylinder (17), and a positioning mechanism is fixedly mounted on the side wall of the electric telescopic rod (18); The positioning mechanism comprises an L-shaped rod (21), four of the L-shaped rods (21) are evenly fixedly mounted on the side wall of the electric telescopic rod (18), and two of the L-shaped rods (21) located in the front-rear direction are slidably mounted in the two inner grooves (15).

2. A precision drilling equipment for steel structure manufacturing as claimed in claim 1, characterized in that: A spring (22) is fixedly mounted on the lower ends of the four L-shaped rods (21), and a connecting strip (23) is sleeved on the four L-shaped rods (21); The four connecting bars (23) are each provided with a first slot (24) inside, and the four L-shaped rods (21) are slidably mounted in the four first slots (24) respectively.

3. A precision drilling equipment for steel structure manufacturing as claimed in claim 2, characterized in that: One end of the four springs (22) away from the L-shaped rod (21) is fixedly connected to the inner walls of the four first slots (24), respectively, and a fixing strip (25) is fixedly installed at the lower end of each of the four connecting strips (23); The four fixing bars (25) are each provided with a slide groove (26), the inside of the four slide grooves (26) are each slidably mounted with a slider (27), and the lower ends of the four sliders (27) are each fixedly mounted with a fixing block (28).

4. A precision drilling equipment for steel structure manufacturing as claimed in claim 1, characterized in that: A driving motor (31) is fixedly mounted on the free end of the electric telescopic rod (18), and a liquid storage tank (32) is fixedly mounted on the upper end of the driving motor (31); A box cover (33) is installed inside the liquid storage box (32), and a second slot (38) is symmetrically provided on the box cover (33).

5. A precision drilling equipment for steel structure manufacturing as claimed in claim 4, characterized in that: A connecting pipe (34) is symmetrically installed inside the liquid storage box (32), and the two blocking pieces (16) are respectively inserted into the two second slots (38); The output end of the driving motor (31) is provided with a rotating shaft (35), which is tightly fitted with the two connecting pipes (34).

6. A precision drilling equipment for steel structure manufacturing as claimed in claim 5, characterized in that: The side wall of the rotating shaft (35) is symmetrically provided with a strip-shaped installation groove (36), and a threaded ring (37) is threadedly installed on the rotating shaft (35); Wherein, a drill bit (41) is slidably mounted inside the rotating shaft (35).

7. A precision drilling equipment for steel structure manufacturing as claimed in claim 6, characterized in that: Side blocks (42) are symmetrically fixedly mounted on the side walls of the drill bit (41), and flip blocks (43) are rotatably mounted inside the two side blocks (42); Wherein, a liquid collecting tray (44) is fixedly sleeved on the drill bit (41).

8. A precision drilling equipment for steel structure manufacturing as claimed in claim 7, characterized in that: The drill bit (41) is evenly provided with holes (45), and the lowermost end of the inner wall of the liquid collecting tray (44) is flush with the holes (45); Wherein, a fixing ring (46) is rotatably mounted on the liquid collecting tray (44).

9. A precision drilling equipment for steel structure manufacturing as claimed in claim 8, characterized in that: The fixing ring (46) is symmetrically provided with column grooves (47), and the two connecting pipes (34) are respectively fixedly installed in the two column grooves (47); Wherein, a fan blade (48) is fixedly mounted on the side wall of the liquid collecting tray (44).

10. The precision drilling equipment for steel structure manufacturing as claimed in claim 3, characterized in that: Arc-shaped bars (51) are fixedly installed between two of the four connecting bars (23), and protective cloths (52) are evenly installed at the lower ends of the four arc-shaped bars (51); Wherein, a counterweight block (53) is fixedly mounted on the lower end of each of the protective cloths (52).

Images