CN112404483A

CN112404483A - Steel construction perforating device convenient to adjust degree of depth of punching

Info

Publication number: CN112404483A
Application number: CN202011252792.3A
Authority: CN
Inventors: 崔红燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-26

Abstract

The invention relates to the technical field of steel structures and discloses a steel structure punching device convenient for adjusting punching depth. This steel construction perforating device convenient to adjust the degree of depth of punching, support the surface of tight steel construction through two sets of clamp plates, make the fixed stability of steel construction obtain improving, and punch to the steel construction with drill bit and electric putter cooperation, make the device be convenient for adjust the height of punching, can punch to the steel construction of different thickness, thereby guaranteed the device's application scope and practicality, through elevator block and lift slide rail sliding connection, stability when making the lifter plate go up and down improves, the condition of skew takes place when the lifter plate goes up and down can not appear, thereby the quality of punching of drill bit has been guaranteed.

Description

Steel construction perforating device convenient to adjust degree of depth of punching

Technical Field

The invention relates to the technical field of steel structures, in particular to a steel structure punching device convenient for adjusting punching depth.

Background

The steel structure is a basic component made of section steel or steel plates, and a bearing mechanism is formed according to a certain rule by welding or bolt connection and other methods according to use requirements, and the application of the steel structure in various engineering constructions is very wide, such as steel bridges, steel plants, steel gates, various large pipeline containers, high-rise buildings, tower rail mechanisms and the like.

Punching equipment among the prior art does not usually have carried out optimal design for this type of bar subassembly of steel construction assembly, and the thickness of some steel is different in the course of working of reality, so need perforating device to possess the function of going up and down, and can shake at the in-process that punches, cause the influence to the precision of punching to the quality of punching has been reduced.

For example, the invention provides an industrial steel structure punching device provided in chinese patent publication No. CN111331168A, in which a punching motor is driven by a lifting motor to lift and lower to punch a steel structure, and a first damping mechanism and a second damping mechanism are provided, but the damping effect of the device is still poor because two sets of wedges provided in the device cannot move horizontally when moving outwards, and the inclined surfaces of a lower member and two sets of wedges are short, and the extrusion force for the second damping spring is small, if the inclined surfaces of the lower member and the wedges are increased, the cost of the device is increased, the friction force of the lower member moving downwards is increased, so that the second damping spring acts less when the housing is vibrated slightly, and the limitations of the lower member and the two sets of wedges are high, and when the housing moves downwards, only half of the height of the wedges can be moved, the damping capacity of the second damping spring cannot be maximized, thereby deteriorating the damping quality of the device.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the steel structure punching device which is good in damping effect and convenient for adjusting the punching depth, and solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a steel structure punching device convenient for adjusting punching depth comprises a supporting plate, wherein supporting legs are fixedly connected to four corners of the lower surface of the supporting plate, limiting columns are inserted into the four corners of the upper surface of the supporting plate, a top plate is fixedly connected to the top ends of the limiting columns, a concave plate is fixedly connected to the upper surface of the top plate, an electric push rod is fixedly connected to the inner wall of the top of the concave plate, a lifting plate is fixedly connected to the lower surface of the electric push rod, a motor supporting plate is fixedly connected to the lower surface of the lifting plate, a driving motor is fixedly connected to the left side surface of the motor supporting plate, a drill bit is fixedly connected to the output end of the driving motor, lifting sliders are fixedly connected to the front side and the rear side of the left side surface and the right side surface of the lifting plate, lifting slide rails are fixedly connected to the front side and the rear side, the front side and the rear side of the upper surface of the top plate are fixedly connected with stabilizing plates, the outer side surfaces of the stabilizing plates are inserted with clamping rods, the inner ends of the clamping rods are sleeved with the clamping plates, the outer sides of the outer surfaces of the clamping rods are sleeved with balancing plates, the lower surfaces of the balancing plates are fixedly connected with balancing sliding blocks, the front sides and the rear sides of the upper surface of the top plate are fixedly connected with balancing sliding rails, the balancing sliding blocks are connected with the balancing sliding rails in a sliding manner, four corners of the lower surface of the top plate are fixedly connected with bearing blocks, the inner sides of the bearing blocks are fixedly connected with cross columns, the outer sides of the outer surfaces of the cross columns are inserted with first combining rods, the outer surfaces of the first combining rods are sleeved with combining plates, the bottom inside the combining plates are inserted with second combining rods, the outer surfaces of the second combining rods are sleeved with combining blocks, and the lower surfaces of the combining, the utility model discloses a damping device, including backup pad, stabilizing slide rail, stabilizing slide block, stabilizing slide rail sliding connection, the inboard fixedly connected with horizontal plate of stabilizing slide block upper surface, the first horizontal spring of bottom fixedly connected with that is located left side and right side horizontal plate medial surface, the top fixedly connected with second horizontal spring that is located front side and rear side horizontal plate medial surface, the lower fixed surface of bearing piece is connected with the shock attenuation pole, the surface of shock attenuation pole has cup jointed the damper cylinder, the inside of damper cylinder is provided with first damping spring, the surface of damper cylinder has cup jointed second damping spring.

Preferably, the bottom end of the limiting column is fixedly connected with a circular limiting plate, and the diameter of the circular limiting plate is twice the diameter of the limiting column.

Preferably, the outer surface of the clamping rod is provided with external threads, the inner part of the stabilizing plate is provided with internal threads, and the clamping rod is in threaded connection with the stabilizing plate.

Preferably, the inner side surface of the clamping plate is provided with an anti-slip layer, and the inner side surface of the anti-slip layer is provided with anti-slip lines.

Preferably, four sides of the outer surfaces of the supporting plate and the top plate are rounded, and the radius of the rounded corner is thirty millimeters.

Preferably, the supporting leg is internally provided with a weight, and the shape of the weight is matched with that of the supporting leg.

(III) advantageous effects

Compared with the prior art, the invention provides the steel structure punching device convenient for adjusting the punching depth, and the steel structure punching device has the following beneficial effects:

1. this steel construction perforating device convenient to adjust the degree of depth of punching, support the surface of tight steel construction through two sets of clamp plates, make the fixed stability of steel construction obtain improving, and punch to the steel construction with drill bit and electric putter cooperation, make the device be convenient for adjust the height of punching, can punch to the steel construction of different thickness, thereby guaranteed the device's application scope and practicality, through elevator block and lift slide rail sliding connection, stability when making the lifter plate go up and down improves, the condition of skew takes place when the lifter plate goes up and down can not appear, thereby the quality of punching of drill bit has been guaranteed.

2. The steel structure punching device convenient for adjusting the punching depth moves towards the inner side through four groups of horizontal plates and extrudes a first horizontal spring and a second horizontal spring, and then the first horizontal spring and the second horizontal spring extend to absorb shock of the device, so that the shock absorption effect of the device is improved, the first shock absorption spring and the second shock absorption spring are extruded by downward movement of the bearing block and the shock absorption rod, and then the first shock absorption spring and the second shock absorption spring extend to absorb shock of the device, so that the shock absorption effect of the device is further improved, the number of the first shock absorption spring and the number of the second shock absorption spring are four groups, the four corners of the lower surface of the top plate are distributed and matched with the shock absorption rod and the shock absorption cylinder which are in sliding connection, the device can keep vertical lifting when absorbing shock and is matched with four groups of limiting columns, so that the vertical lifting effect of the device when absorbing shock is further improved, thereby guaranteed the device's shock attenuation quality, guaranteed the device's the precision of punching.

3. This steel construction perforating device convenient to adjust the degree of depth of punching through balanced slider and balanced slide rail sliding connection, makes the balance plate keep horizontal migration, can keep the rotatory stability of clamping bar, and the slope when clamping bar length overlength is rotatory can not appear, leads to taking place with the dead condition of stabilizing plate card to guaranteed the stability of the device operation, guaranteed the stability of clamping bar operation, and then guaranteed the device's fixed effect.

Drawings

FIG. 1 is a schematic structural view of a steel structure punching device provided by the invention, and the punching depth can be conveniently adjusted;

FIG. 2 is a schematic structural view of a section of a lifting plate of the steel structure punching device, which is convenient for adjusting the punching depth;

FIG. 3 is a schematic structural diagram of a top plate section of the steel structure perforating device provided by the invention, and the perforating depth can be conveniently adjusted;

FIG. 4 is a schematic sectional view of a supporting block of the steel structure punching device convenient for adjusting the punching depth;

FIG. 5 is a schematic view of a full structure of a shock-absorbing cylinder of the steel structure perforating device provided by the invention, which facilitates adjustment of perforating depth.

In the figure: 1. a support plate; 2. supporting legs; 3. a restraining post; 4. a top plate; 5. a concave plate; 6. an electric push rod; 7. a lifting plate; 8. a motor support plate; 9. a drive motor; 10. a drill bit; 11. a lifting slide block; 12. lifting the slide rail; 13. a stabilizing plate; 14. a clamping lever; 15. a clamping plate; 16. a balance plate; 17. a balancing slide block; 18. balancing the slide rail; 19. a bearing block; 20. a cross-shaped column; 21. a first uniting bar; 22. a combination board; 23. a second coupling rod; 24. a union block; 25. stabilizing the slide block; 26. stabilizing the slide rail; 27. a horizontal plate; 28. a first horizontal spring; 29. a second horizontal spring; 30. a shock-absorbing lever; 31. a damper cylinder; 32. a first damping spring; 33. a second damping spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a steel structure punching device convenient for adjusting punching depth comprises a supporting plate 1, supporting legs 2 are fixedly connected to four corners of the lower surface of the supporting plate 1, limiting columns 3 are inserted into four corners of the upper surface of the supporting plate 1, a top plate 4 is fixedly connected to the tops of the limiting columns 3, a concave plate 5 is fixedly connected to the upper surface of the top plate 4, an electric push rod 6 is fixedly connected to the inner wall of the top of the concave plate 5, the model of the electric push rod 6 is SD146-85DJ, a lifting plate 7 is fixedly connected to the lower surface of the electric push rod 6, a motor support plate 8 is fixedly connected to the lower surface of the lifting plate 7, a driving motor 9 is fixedly connected to the left side surface of the motor support plate 8, the model of the driving motor 9 is Y132S2-2, a drill bit 10 is fixedly connected to the output end of the driving motor 9, lifting sliders 11 are fixedly connected to the front sides and the rear sides of the left side surface and the right side surface, the lifting slide block 11 is connected with the lifting slide rail 12 in a sliding way, so that the stability of the lifting plate 7 during lifting is improved, the situation of deviation of the lifting plate 7 during lifting is avoided, the punching quality of the drill bit 10 is ensured, the front side and the rear side of the upper surface of the top plate 4 are both fixedly connected with the stabilizing plates 13, the outer side surfaces of the stabilizing plates 13 are inserted with the clamping rods 14, the inner ends of the clamping rods 14 are sleeved with the clamping plates 15, the outer surfaces of the steel structures are abutted through the two groups of clamping plates 15, the clamping plates 15 are detachably connected with the top plate 4, the device can be suitable for the steel structures with different surface shapes (such as arc, cylinder, ellipse and the like) by replacing the clamping plates 15, the fixing performance is enhanced, the stability of the steel structures is improved, and the device is matched with, the device can punch steel structures with different thicknesses, thereby ensuring the application range and the practicability of the device, a balance plate 16 is sleeved outside the outer surface of a clamping rod 14, a balance slide block 17 is fixedly connected to the lower surface of the balance plate 16, a balance slide rail 18 is fixedly connected to both the front side and the rear side of the upper surface of a top plate 4, the balance slide block 17 is in sliding connection with the balance slide rail 18, the balance plate 16 keeps horizontal movement through the sliding connection of the balance slide block 17 and the balance slide rail 18, the rotating stability of the clamping rod 14 can be kept, the clamping rod 14 cannot incline when rotating due to overlong length, so that the clamping rod is blocked with a stabilizing plate 13, the operating stability of the device is ensured, the operating stability of the clamping plate 15 is ensured, the fixing effect of the device is further ensured, the receiving blocks 19 are fixedly connected to the four corners of the lower surface of the top plate 4, and the inner side faces of the receiving blocks, the outer side of the outer surface of the cross column 20 is inserted with a first combined rod 21, the outer surface of the first combined rod 21 is sleeved with a combined plate 22, the bottom inside the combined plate 22 is inserted with a second combined rod 23, the outer surface of the second combined rod 23 is sleeved with a combined block 24, the lower surface of the combined block 24 is fixedly connected with a stable sliding block 25, four corners of the upper surface of the support plate 1 are fixedly connected with stable sliding rails 26, the stable sliding block 25 is slidably connected with the stable sliding rails 26, the inner side of the upper surface of the stable sliding block 25 is fixedly connected with a horizontal plate 27, the bottoms of the inner side surfaces of the left and right horizontal plates 27 are fixedly connected with first horizontal springs 28, the tops of the inner side surfaces of the front and rear horizontal plates 27 are fixedly connected with second horizontal springs 29, the four groups of horizontal plates 27 move inwards and extrude the first horizontal springs 28 and the second horizontal springs 29, and the first horizontal springs 28 and the second horizontal springs 29 extend to absorb, the damping effect of the device is improved, the damping rod 30 is fixedly connected to the lower surface of the bearing block 19, the damping cylinder 31 is sleeved on the outer surface of the damping rod 30, the first damping spring 32 is arranged inside the damping cylinder 31, the second damping spring 33 is sleeved on the outer surface of the damping cylinder 31, the first damping spring 32 and the second damping spring 33 are downwards moved and extruded through the bearing block 19 and the damping rod 30, then the first damping spring 32 and the second damping spring 33 are extended to damp the device, so that the damping effect of the device is further improved, the number of the first damping spring 32 and the number of the second damping spring 33 are four groups, the first damping spring 32 and the second damping spring 33 are distributed at four corners of the lower surface of the top plate 4 and are matched with the damping rod 30 and the damping cylinder 31 which are in sliding connection, so that the device can keep vertical lifting during damping, and are matched with the four groups of limiting columns 3, so that the vertical lifting effect of the device during damping is further improved, thereby guaranteed the device's shock attenuation quality, guaranteed the device's the precision of punching. Through the cooperation of the first horizontal spring 28 and the second horizontal spring 29 and the first damping spring 32 and the second damping spring 33, the device can simultaneously generate damping effect on the vertical vibration and the horizontal vibration.

In order to improve the operation stability of the device, a circular limiting plate is fixedly connected to the bottom end of the limiting column 3, the diameter of the circular limiting plate is twice as large as that of the limiting column 3, the outer surface of the limiting column 3 is in sliding connection with the inner part of the supporting plate 1 during use, the lifting stability of the top plate 4 is guaranteed, and meanwhile the situation that the limiting column 3 slides out of the supporting plate 1 is avoided.

In order to improve the clamping effect of the device, the outer surface of the clamping rod 14 is provided with external threads, the inner part of the stabilizing plate 13 is provided with internal threads, and the clamping rod 14 is in threaded connection with the stabilizing plate 13, so that the firmness of fixing a steel structure is ensured in use.

In order to improve the fixing effect of the device, an anti-skid layer is arranged on the inner side surface of the clamping plate 15, anti-skid lines are arranged on the inner side surface of the anti-skid layer, and the friction force between the outer surface of the steel structure and the inner side surface of the clamping plate 15 is increased when the device is used.

In order to improve the safety of the device, four edges of the outer surfaces of the supporting plate 1 and the top plate 4 are rounded, the radius of the rounded angle is thirty millimeters, and the situation that workers collide with edges and corners of the outer surfaces of the supporting plate 1 and the top plate 4 is avoided when the device is used.

In order to improve the stability of the bottom of the device, the weight is arranged inside the supporting leg 2, the shape of the weight is matched with that of the supporting leg 2, and the shaking amplitude generated when the device runs is reduced when the device is used.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When the device is used, a steel structure is placed on the upper surface of the top plate 4, the clamping rod 14 is rotated, the outer surface of the clamping rod 14 is in threaded connection with the inner part of the stabilizing plate 13, the clamping rod 14 moves inwards, the inner end of the clamping rod 14 is rotatably connected with the inner part of the clamping plate 15 to drive the clamping plate 15 to move inwards, the inner side surfaces of the two groups of clamping plates 15 are abutted against the outer surface of the steel structure, the balancing plate 16 is also driven to move inwards when the clamping rod 14 moves inwards, the outer side of the outer surface of the clamping rod 14 is rotatably connected with the inner part of the balancing plate 16, the electric push rod 6 is started, the electric push rod 6 drives the lifting plate 7 to move downwards, the lifting plate 7 drives the motor support plate 8 to move downwards, the motor support plate 8 drives the driving motor 9 to move downwards, the driving motor 9 is started, the output end of the driving motor 9 drives the drill, when the device shakes during operation to absorb shock, the top plate 4 moves downwards, the top plate 4 drives the bearing block 19 to move downwards, the bearing block 19 drives the cross column 20 to move downwards, the cross column 20 drives the first combination rod 21 to move downwards, the outer surface of the first combination rod 21 is rotatably connected with the top inside the combination plate 22 so as to drive the combination plate 22 to rotate, the bottom inside the combination plate 22 is rotatably connected with the outer surface of the second combination rod 23 so as to drive the second combination rod 23 to move inwards, the second combination rod 23 drives the combination block 24 to move inwards, the combination block 24 drives the horizontal plates 27 to move inwards, the four groups of horizontal plates 27 move inwards and extrude the first horizontal springs 28 and the second horizontal springs 29, the device is subjected to first-step shock absorption by the extension of the first horizontal springs 28 and the second horizontal springs 29, and when the bearing block 19 moves downwards, the shock absorption rod 30 is also driven to move downwards and extrude the second shock absorption springs 33, the damper rod 30 is slidably coupled to the damper cylinder 31 and presses the first damper spring 32, and the second damper spring 32 and the second damper spring 33 are extended to damp the device in a second step. Through the cooperation of above-mentioned damper, can decompose vibrations impact force through great lifting surface, improved the buffer capacity, the shock attenuation is effectual.

In conclusion, this steel construction perforating device convenient to adjust degree of depth of punching, support the surface of tight steel construction through two sets of clamp plates 15, make the fixed stability of steel construction obtain improving, and punch to the steel construction with the cooperation of drill bit 10 and electric putter 6, make the device be convenient for adjust the height of punching, can punch to the steel construction of different thickness, thereby guaranteed the device's application scope and practicality, through elevator block 11 and lift slide rail 12 sliding connection, stability when making elevator plate 7 go up and down improves, the condition of skew takes place when elevator plate 7 goes up and down can not appear, thereby the quality of punching of drill bit 10 has been guaranteed.

The steel structure punching device convenient for adjusting the punching depth moves inwards through four groups of horizontal plates 27 and extrudes a first horizontal spring 28 and a second horizontal spring 29, then the first horizontal spring 28 and the second horizontal spring 29 extend to absorb shock, the shock absorption effect of the device is improved, the first shock absorption spring 32 and a second shock absorption spring 33 are downwardly moved and extruded through a bearing block 19 and a shock absorption rod 30, then the first shock absorption spring 32 and the second shock absorption spring 33 extend to absorb shock, the shock absorption effect of the device is further improved, the number of the first shock absorption spring 32 and the number of the second shock absorption spring 33 are four groups, the first shock absorption spring 32 and the second shock absorption spring 33 are distributed at four corners of the lower surface of a top plate 4 and are matched with the shock absorption rod 30 and the shock absorption cylinder 31 which are in sliding connection, the device can keep vertical lifting during shock absorption, and is matched with four groups of limiting columns 3, so that the vertical lifting effect of the device during shock absorption is further improved, thereby guaranteed the device's shock attenuation quality, guaranteed the device's the precision of punching.

This steel construction perforating device convenient to adjust degree of depth of punching, through

balanced slider

17 and 18 sliding connection of balanced slide rail, make balance plate 16 keep horizontal migration, can keep the rotatory stability of clamping bar 14, the slope when 14 length overlengths of clamping bar are rotatory can not appear, lead to taking place with the dead condition of stabilizer plate 13 card to guaranteed the stability of the device operation, guaranteed the stability of 15 operations of clamping bar, and then guaranteed the fixed effect of the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a steel construction perforating device convenient to adjust the degree of depth of punching, includes backup pad (1), its characterized in that: the four corners of the lower surface of the supporting plate (1) are fixedly connected with supporting legs (2), the four corners of the upper surface of the supporting plate (1) are inserted with limiting columns (3), the top end of each limiting column (3) is fixedly connected with a top plate (4), the upper surface of each top plate (4) is fixedly connected with a concave plate (5), the inner wall of the top of each concave plate (5) is fixedly connected with an electric push rod (6), the lower surface of each electric push rod (6) is fixedly connected with a lifting plate (7), the lower surface of each lifting plate (7) is fixedly connected with a motor supporting plate (8), the left side surface of each motor supporting plate (8) is fixedly connected with a driving motor (9), the output end of each driving motor (9) is fixedly connected with a drill bit (10), and the front side and the rear side of the left side surface and the right side surface of, the front side and the rear side of the inner wall of the left side and the inner wall of the right side of the concave plate (5) are fixedly connected with lifting slide rails (12), lifting slide blocks (11) are connected with the lifting slide rails (12) in a sliding manner, the front side and the rear side of the upper surface of the top plate (4) are fixedly connected with stabilizing plates (13), the outer side of each stabilizing plate (13) is spliced with a clamping rod (14), the inner end of each clamping rod (14) is sleeved with a clamping plate (15), the outer side of the outer surface of each clamping rod (14) is sleeved with a balancing plate (16), the lower surface of each balancing plate (16) is fixedly connected with a balancing slide block (17), the front side and the rear side of the upper surface of the top plate (4) are fixedly connected with balancing slide rails (18), the balancing slide blocks (17) are connected with the balancing slide rails (18) in a sliding manner, and four corners of the lower, the inner side surface of the bearing block (19) is fixedly connected with a cross column (20), the outer side of the outer surface of the cross column (20) is spliced with a first combined rod (21), the outer surface of the first combined rod (21) is sleeved with a combined plate (22), the bottom inside the combined plate (22) is spliced with a second combined rod (23), the outer surface of the second combined rod (23) is sleeved with a combined block (24), the lower surface of the combined block (24) is fixedly connected with a stabilizing slide block (25), four corners of the upper surface of the support plate (1) are fixedly connected with stabilizing slide rails (26), the stabilizing slide block (25) is slidably connected with the stabilizing slide rails (26), the inner side of the upper surface of the stabilizing slide block (25) is fixedly connected with a horizontal plate (27), and the bottoms of the inner side surfaces of the left and right horizontal plates (27) are fixedly connected with a first horizontal spring (28), the top fixedly connected with second horizontal spring (29) that are located front side and rear side horizontal plate (27) medial surface, the lower fixed surface who holds in piece (19) is connected with shock absorber rod (30), shock absorber tube (31) have been cup jointed to the surface of shock absorber rod (30), the inside of shock absorber tube (31) is provided with first damping spring (32), second damping spring (33) have been cup jointed to the surface of shock absorber tube (31).

2. The steel structure perforating device convenient to adjust perforating depth of claim 1, characterized in that: the bottom end of the limiting column (3) is fixedly connected with a circular limiting plate, and the diameter of the circular limiting plate is twice the diameter of the limiting column (3).

3. The steel structure perforating device convenient to adjust perforating depth of claim 1, characterized in that: the outer surface of the clamping rod (14) is provided with external threads, the inner part of the stabilizing plate (13) is provided with internal threads, and the clamping rod (14) is in threaded connection with the stabilizing plate (13).

4. The steel structure perforating device convenient to adjust perforating depth of claim 1, characterized in that: the inner side surface of the clamping plate (15) is provided with an anti-slip layer, and the inner side surface of the anti-slip layer is provided with anti-slip lines.

5. The steel structure perforating device convenient to adjust perforating depth of claim 1, characterized in that: four sides of the outer surfaces of the supporting plate (1) and the top plate (4) are all subjected to rounding treatment, and the radius of each rounding is thirty millimeters.

6. The steel structure perforating device convenient to adjust perforating depth of claim 1, characterized in that: the support leg (2) is internally provided with a weighting block, and the shape of the weighting block is matched with that of the support leg (2).