Multifunctional punching device for C-shaped steel machining

Abstract

The utility model relates to the technical field of punching machinery, in particular to a multifunctional punching device for C-shaped steel processing, which comprises an upper mounting box and two hydraulic punching units, a lower mounting box is arranged below the upper mounting box, the upper ends of the two hydraulic punching units are respectively and fixedly connected onto the left inner wall and the right inner wall of the upper mounting box, and the lower ends of the two hydraulic punching units are respectively and fixedly connected onto the left inner wall and the right inner wall of the upper mounting box. The punching device further comprises two clamping units, the outer ends of the two clamping units are fixedly connected to the left side wall and the right side wall of the lower mounting box respectively, the inner ends of the two clamping units extend to the middle of the lower mounting box respectively, a jacking structure is fixedly connected to the bottom of the lower mounting box, and two waste discharging units are arranged at the top of the jacking structure. The outer ends of the two waste discharging units are fixedly connected to the left side and the right side of the jacking structure correspondingly, and the inner ends of the two waste discharging units are slidably connected with the middle of the jacking structure correspondingly. The C-shaped steel moving device has the following beneficial effects that the C-shaped steel is ensured not to deviate during moving; the moving range of the punch is enlarged, and the applicability of the device is improved; and abrasion to the C-shaped steel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machinery, in particular to a multifunctional punching device used for processing C-shaped steel. Background Art

[0002] C-shaped steel is a steel material with a C-shaped cross section. It is made by a C-shaped steel processing machine through cold bending. After the C-shaped steel is formed, it needs to be punched by a punching machine.

[0003] For example, in the patent document with patent publication number CN212285519U, a C-shaped steel punching device is disclosed, which includes a base frame, a slideway is provided on the base frame, two punching seats arranged opposite to each other are slidably provided on the slideway, a bidirectional screw rod is threadedly penetrated on the base frame along the length direction of the slideway, the two punching seats are penetrated by the bidirectional screw rod and the two punching seats are respectively threadedly connected to the two thread sections of the bidirectional screw rod with opposite rotation directions; a punching tool is arranged for lifting on the punching seat, a punching cylinder is fixed on the upper surface of the base frame, which is respectively driven and connected to the two punching tools and controls their synchronous lifting and lowering, a punching die is fixed on the punching seat just below the punching tool, a material withdrawal port is provided on the punching die, which penetrates the punching seat and is adapted to the punching tool, and the bottom of the slideway is open and connected to the material withdrawal port.

[0004] According to the prior art documents, the shortcomings of this device are:

[0005] 1. The punching device presses the C-shaped steel against the punching die through a flattening box, thereby fixing the C-shaped steel to a certain extent. However, the device lacks a structure for clamping and fixing both sides of the C-shaped steel. Therefore, the C-shaped steel is prone to directional deviation during movement, resulting in a corresponding deviation in the punching position.

[0006] 2. The punching tool of the device moves with the punching seat to achieve position changes. Therefore, when punching different positions of the C-shaped steel is required, the relative positions of the two punching seats need to be adjusted. However, when the punching seat is displaced, the flattening roller and the punching die will rub against the C-shaped steel, which will not only hinder the position adjustment of the punching tool to a certain extent, but also cause wear on the surface of the C-shaped steel;

[0007] 3. When the relative position of the two punching seats is adjusted to a certain degree, the two sides of the C-shaped steel will respectively abut against the inner sides of the two punching seats. However, since the punching tool changes its position along with the movement of the punching seat, the punching tool cannot continue to move to the inner side of the C-shaped steel at this time, thereby limiting the range of movement of the punching tool and reducing its applicability.

[0008] To this end, the utility model optimizes and improves the problem of fixing C-shaped steel and the range of motion of the punching tool in the prior art, and hereby proposes a new punching device that can effectively fix C-shaped steels of different sizes and flexibly adjust the position of the punching tool, so as to better solve the problems in the prior art. Utility Model Content

[0009] The utility model is to solve one of the above technical problems, and the technical solution adopted is: a multifunctional punching device for C-shaped steel processing, comprising a fixed upper installation box, the bottom surface of the upper installation box is open, a lower installation box is fixedly arranged below the upper installation box, the top surface of the lower installation box is open, and also includes two hydraulic punching units symmetrically arranged on the left and right, the upper ends of the two hydraulic punching units are respectively fixedly connected to the left and right vertical inner side walls of the upper installation box, the lower ends of the two hydraulic punching units are vertically extended to the bottom of the upper installation box, and also includes left and right symmetrically arranged hydraulic punching units. Two clamping units are provided, and the outer ends of the two clamping units are respectively fixedly connected to the tops of the left and right vertical side walls of the lower installation box, and the inner ends of the two clamping units are respectively extended horizontally to the middle of the lower installation box and are used to clamp and fix the C-shaped steel. A jacking structure is fixedly connected to the bottom of the inner cavity of the lower installation box, and two waste discharge units are symmetrically arranged on the top of the jacking structure, and the outer ends of the two waste discharge units are respectively fixedly connected to the left and right sides of the top surface of the jacking structure, and the inner ends of the two waste discharge units are respectively slidably connected to the middle of the top surface of the jacking structure.

[0010] In any of the above schemes, it is preferred that the clamping unit includes a first fixed block, the first fixed block is fixedly connected to the top surface of the corresponding side wall of the lower mounting box, the inner side wall of the first fixed block is fixedly connected to the outer end of the first electric cylinder, and the inner end of the first electric cylinder extends horizontally to the middle of the lower mounting box and is fixedly connected to the clamping assembly.

[0011] In any of the above schemes, it is preferred that the clamping assembly includes a clamping plate with a vertical cross-section in the shape of an angle steel, the inner end of the first electric cylinder is fixedly connected to the vertical outer wall of the clamping plate, a first mounting groove is opened on the horizontal plate surface on the inner side of the clamping plate along its length direction, a plurality of first rolling wheels are installed at intervals in the first mounting groove along its length direction, a second mounting groove is opened on the vertical plate surface on the inner side of the clamping plate along its length direction, a plurality of second rolling wheels are installed at intervals in the second mounting groove along its length direction, each of the first rolling wheels is used to abut against the bottom surface of the C-shaped steel, and each of the second rolling wheels is used to abut against the vertical outer wall of the C-shaped steel.

[0012] In any of the above schemes, it is preferred that the jacking structure includes a support plate, and a plurality of first hydraulic cylinders are fixedly connected in the vertical direction on the left and right sides of the bottom of the support plate, respectively, and the lower end of each of the first hydraulic cylinders is fixedly connected to the bottom surface of the inner cavity of the lower mounting box, and the outer ends of the two waste discharge units are respectively fixedly connected to the left and right sides of the top surface of the support plate, and the inner ends of the two waste discharge units are respectively slidably connected to the middle of the top surface of the support plate.

[0013] In any of the above schemes, it is preferred that the waste discharge unit includes a second fixed block, the second fixed block is fixedly connected to the top surface of the corresponding side of the support plate, the inner side wall of the second fixed block is fixedly connected to the outer end of the second electric cylinder, the inner end of the second electric cylinder is fixedly connected with a material return block, and the bottom of the material return block is slidably connected to the support plate.

[0014] In any of the above schemes, it is preferred that a material return groove is provided in the middle of the material return block along the vertical direction, and a sliding guide groove, a snap-fit ​​assembly groove and a waste discharge groove are provided in sequence from top to bottom at a corresponding position in the middle of the support plate, the lower end of the material return block passes through the sliding guide groove and is snap-fitted in the snap-fit ​​assembly groove, the circumferential outer side wall at the corresponding position of the lower part of the material return block abuts against the inner side wall of the sliding guide groove, and the material return groove is connected to the waste discharge groove.

[0015] In any of the above schemes, it is preferred that the hydraulic punching unit includes a third electric cylinder, the outer end of the third electric cylinder is fixedly connected to the inner wall of the corresponding side of the upper mounting box, the inner end of the third electric cylinder extends horizontally to the middle of the upper mounting box and is fixedly connected to a connecting rod, the bottom surface of the connecting rod is fixedly connected to the upper end of a second hydraulic cylinder, and the lower end of the second hydraulic cylinder is fixedly connected to a punch.

[0016] In any of the above solutions, preferably, a sliding support plate is fixedly connected to the bottom of the clamping plate, and both ends of the sliding support plate are respectively inserted into horizontal slots on the corresponding side walls of the lower installation box.

[0017] In any of the above solutions, preferably, the two ends of the connecting rod are respectively inserted into horizontal slots on the corresponding side walls of the upper installation box.

[0018] In any of the above solutions, preferably, a waste collection pool is fixedly provided below the middle portion of the support plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model clamps and fixes the C-shaped steel by setting a right-angle clamping plate, and the clamping plate can not only support the bottom of the C-shaped steel, but also clamp and fix the side walls of the C-shaped steel, thereby ensuring that the movement of the C-shaped steel will not be offset and improving the accuracy of the opening position.

[0021] 2. The utility model controls the movement of the clamping plate used to clamp and fix the C-shaped steel through the first electric cylinder, and controls the movement of the punch used for punching through the third electric cylinder. In this way, the clamping plate and the punch can be independent of each other, so that the movement of the two does not interfere with each other, avoiding the two being fixedly connected, thereby restricting the movement of the punch.

[0022] 3. The utility model controls the movement of the punch through the third electric cylinder and controls the movement of the stripping block through the second electric cylinder. When the C-shaped steel needs to be punched, the punch and the stripping block are respectively moved to the top and bottom of the hole position of the C-shaped steel to complete the punching operation. This not only ensures the accuracy of the punching position, but also greatly increases the range of motion of the punch, improves the applicability of the punching device, and achieves the purpose of multi-function and multi-purpose.

[0023] 4. The utility model arranges a first rolling wheel and a second rolling wheel on the clamping plate. The first rolling wheel and the second rolling wheel can rotate freely while abutting against the C-shaped steel, so that the wear on the C-shaped steel can be reduced by rolling abutment, thereby ensuring the quality of the C-shaped steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a front view of the punching device of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the punching device of the utility model in the front view direction.

[0027] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0028] Figure 4 for Figure 2 Cross-sectional view of the local structure at the midline BB.

[0029] Figure 5 It is a side view of the clamping unit of the utility model.

[0030] Figure 6It is a cross-sectional view of the support plate of the utility model when viewed from the side.

[0031] Figure 7 Schematic diagram of the action of the punch of the utility model

[0032] In the figure, 1, upper mounting box; 2, lower mounting box; 3, C-shaped steel; 4, first fixed block; 5, first electric cylinder; 6, clamping plate; 7, first mounting groove; 8, first rolling wheel; 9, second mounting groove; 10, second rolling wheel; 11, support plate; 12, first hydraulic cylinder; 13, second fixed block; 14, second electric cylinder; 15, material return block; 16, material return groove; 17, sliding guide groove; 18, snap-fit ​​assembly groove; 19, waste material outlet groove; 20, third electric cylinder; 21, connecting rod; 22, second hydraulic cylinder; 23, punch; 24, sliding support plate; 25, waste material collection pool. DETAILED DESCRIPTION

[0033] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 7 as shown in .

[0034] A multifunctional punching device for C-shaped steel processing, comprising a fixed upper installation box 1, the bottom surface of the upper installation box 1 is open, a lower installation box 2 is fixedly arranged below the upper installation box 1, the top surface of the lower installation box 2 is open, and also comprises two hydraulic punching units arranged symmetrically on the left and right, the upper ends of the two hydraulic punching units are respectively fixedly connected to the left and right vertical inner side walls of the upper installation box 1, the lower ends of the two hydraulic punching units are vertically extended to the bottom of the upper installation box 1, and also comprises two clamping units arranged symmetrically on the left and right, the two clamping units are arranged symmetrically on the left and right, and the two clamping units are arranged symmetrically on the left and right. The outer ends of the clamping units are respectively fixedly connected to the tops of the left and right vertical side walls of the lower installation box 2, the inner ends of the two clamping units are respectively extended horizontally to the middle of the lower installation box 2 and are used to clamp and fix the C-shaped steel 3, a jacking structure is fixedly connected to the bottom of the inner cavity of the lower installation box 2, and two waste discharge units are symmetrically arranged on the top of the jacking structure, the outer ends of the two waste discharge units are respectively fixedly connected to the left and right sides of the top surface of the jacking structure, and the inner ends of the two waste discharge units are respectively slidably connected to the middle of the top surface of the jacking structure.

[0035] The device is fixedly provided with an upper installation box 1, two hydraulic punching units, two clamping units, two waste discharge units, a jacking structure and a lower installation box 2 in sequence from top to bottom. The two hydraulic punching units, the two clamping units and the two waste discharge units are all symmetrically arranged in the vertical direction. The top of the upper installation box 1 is fixedly installed on the top plate. The upper ends of the two hydraulic punching units are respectively fixedly connected to the left and right vertical inner walls of the upper installation box 1. Through their upper telescopic structures, the two hydraulic punching units can be respectively displaced toward the inner side of the upper installation box 1 in the horizontal direction. The lower ends of the two hydraulic punching units are vertically extended to the bottom of the upper installation box 1, and their lower ends can be telescopically moved in the vertical direction. The outer ends of the two clamping units are respectively fixedly connected to the top of the left and right vertical side walls of the lower installation box 2, and the inner ends of the two clamping units are respectively extended horizontally to the middle of the lower installation box 2. When the C-shaped steel 3 is transported to the corresponding position between the upper installation box 1 and the lower installation box 2, the inner ends of the two clamping units are respectively extended by a fixed distance to clamp and fix the bottom and the side walls of the C-shaped steel 3. A jacking structure is fixedly connected to the bottom of the inner cavity of the lower installation box 2. The jacking structure is used to drive the two waste discharge units to move up and down. The outer ends of the two waste discharge units are respectively fixedly connected to the left and right sides of the top surface of the jacking structure, and the inner ends of the two waste discharge units are respectively slidably connected to the middle of the top surface of the jacking structure. The waste discharge unit can be telescopically moved in the horizontal direction, so that its inner end moves horizontally left and right under the sliding cooperation connection with the jacking structure.

[0036] When punching operation is required on C-shaped steel 3, two clamping units clamp the bottom surface and left and right side walls of C-shaped steel 3 respectively, and according to the position spacing of the openings, control the two hydraulic punching units and two waste discharge units to move accordingly, so that the hydraulic punching unit is located directly above the opening position, and the waste discharge unit is located directly below the opening position. When C-shaped steel 3 moves to the corresponding position, the lower end of the hydraulic punching unit is controlled to move down and abut against the inner bottom surface of C-shaped steel 3, and the lifting structure is controlled to move up so that the inner end top of the waste discharge unit abuts against the corresponding position of the outer bottom surface of C-shaped steel 3. Then, under the action of the hydraulic punching unit, the bottom surface of C-shaped steel 3 is punched, and the waste is guided to the outside through the corresponding waste discharge unit, thereby completing the punching operation.

[0037] In any of the above schemes, it is preferred that the clamping unit includes a first fixed block 4, the first fixed block 4 is fixedly connected to the top surface of the corresponding side wall of the lower installation box 2, the inner side wall of the first fixed block 4 is fixedly connected to the outer end of the first electric cylinder 5, and the inner end of the first electric cylinder 5 extends horizontally to the middle of the lower installation box 2 and is fixedly connected to the clamping assembly.

[0038] The outer end of the first electric cylinder 5 is fixedly mounted on the top surface of one side wall of the lower mounting box 2 through the first fixing block 4, and the inner end of the first electric cylinder 5 telescopes and moves in the horizontal direction to drive the clamping assembly to move, and the clamping assembly is used to abut against the bottom and both side walls of the C-shaped steel 3.

[0039] In any of the above schemes, it is preferred that the clamping assembly includes a clamping plate 6 with a vertical cross-section in the shape of an angle steel, the inner end of the first electric cylinder 5 is fixedly connected to the vertical outer wall of the clamping plate 6, a first mounting groove 7 is opened on the horizontal plate surface on the inner side of the clamping plate 6 along its length direction, a plurality of first rolling wheels 8 are installed at intervals in the first mounting groove 7 along its length direction, a second mounting groove 9 is opened on the vertical plate surface on the inner side of the clamping plate 6 along its length direction, a plurality of second rolling wheels 10 are installed at intervals in the second mounting groove 9 along its length direction, each of the first rolling wheels 8 is used to abut against the bottom surface of the C-shaped steel 3, and each of the second rolling wheels 10 is used to abut against the vertical outer wall of the C-shaped steel 3.

[0040] The overall shape of the clamping plate 6 is a right-angle structure, and its vertical section is an angle steel shape. The inner end of the first electric cylinder 5 is fixedly connected to the vertical outer wall of the clamping plate 6 and drives the clamping plate 6 to move horizontally. Each first rolling wheel 8 is fixedly installed inside the first mounting groove 7 and can rotate freely around its central rotating rod. Each second rolling wheel 10 is fixedly installed inside the second mounting groove 9 and can rotate freely around its central rotating rod. When the clamping plate 6 clamps the C-shaped steel 3, the top of each first rolling wheel 8 abuts against the corresponding position of the bottom surface of the C-shaped steel 3, and the side of each second rolling wheel 10 abuts against the corresponding position of the vertical outer wall of the C-shaped steel 3. When it is necessary to punch holes at different positions of the C-shaped steel 3, under the action of the first rolling wheel 8 and the second rolling wheel 10, the position of the C-shaped steel 3 can be adjusted quickly and flexibly, and the wear of the C-shaped steel 3 can be avoided by rolling.

[0041] In any of the above schemes, it is preferred that the jacking structure includes a support plate 11, and a plurality of first hydraulic cylinders 12 are fixedly connected in the vertical direction on the left and right sides of the bottom of the support plate 11, and the lower end of each of the first hydraulic cylinders 12 is fixedly connected to the bottom surface of the inner cavity of the lower mounting box 2, and the outer ends of the two waste discharge units are respectively fixedly connected to the left and right sides of the top surface of the support plate 11, and the inner ends of the two waste discharge units are respectively slidably connected to the middle of the top surface of the support plate 11.

[0042] The first hydraulic cylinder 12 drives the support plate 11 to move up and down, thereby further driving the two waste discharge units to move up and down accordingly.

[0043] In any of the above schemes, it is preferred that the waste discharge unit includes a second fixed block 13, the second fixed block 13 is fixedly connected to the top surface of the corresponding side of the support plate 11, the inner side wall of the second fixed block 13 is fixedly connected to the outer end of the second electric cylinder 14, the inner end of the second electric cylinder 14 is fixedly connected with a material return block 15, and the bottom of the material return block 15 is slidably connected to the support plate 11.

[0044] The outer end of the second electric cylinder 14 is fixedly mounted on the top surface of the corresponding side of the support plate 11 through the second fixed block 13. Under the telescopic movement of the second electric cylinder 14, the stripping block 15 is displaced horizontally on the top surface of the support plate 11. At the same time, the bottom of the stripping block 15 maintains a sliding connection with the support plate 11, thereby reducing the wear on the bottom of the stripping block 15.

[0045] In any of the above schemes, it is preferred that a material return groove 16 is opened in the middle of the material return block 15 along the vertical direction, and a sliding guide groove 17, a snap-fit ​​assembly groove 18 and a waste discharge groove 19 are opened in sequence from top to bottom at a corresponding position in the middle of the support plate 11, the lower end of the material return block 15 passes through the sliding guide groove 17 and is snap-fitted in the snap-fit ​​assembly groove 18, the circumferential outer side wall at the corresponding position of the lower part of the material return block 15 abuts against the inner side wall of the sliding guide groove 17, and the material return groove 16 is connected to the waste discharge groove 19.

[0046] A material return groove 16 is vertically opened in the middle of the material return block 15 , and the material return groove 16 runs through the entire material return block 15 . When punching the C-shaped steel, the lower end of the hydraulic punching unit passes through the C-shaped steel 3 and then extends into the material return groove 16 , and waste is discharged through the material return groove 16 .

[0047] The lower end of the material return block 15 is engaged with the inner part of the snap-fit ​​assembly groove 18. Under the telescopic movement of the second electric cylinder 14, the lower end of the material return block 15 is horizontally displaced along the snap-fit ​​assembly groove 18. At the same time, the upper part of the material return block 15 passes through the sliding guide groove 17 to the top of the support plate 11, and the bottom of the material return groove 16 is connected to the waste discharge groove 19. The waste passes through the material return groove 16 and then falls below the support plate 11 through the waste discharge groove 19.

[0048] In any of the above schemes, it is preferred that the hydraulic punching unit includes a third electric cylinder 20, the outer end of the third electric cylinder 20 is fixedly connected to the inner wall of the corresponding side of the upper mounting box 1, the inner end of the third electric cylinder 20 extends horizontally to the middle of the upper mounting box 1 and is fixedly connected to a connecting rod 21, the bottom surface of the connecting rod 21 is fixedly connected to the upper end of a second hydraulic cylinder 22, and the lower end of the second hydraulic cylinder 22 is fixedly connected to a punch 23.

[0049] The third electric cylinder 20 drives the connecting rod 21, the second hydraulic cylinder 22 and the punch 23 to move left and right in the horizontal direction, and the second hydraulic cylinder 22 drives the punch 23 to move up and down in the vertical direction. The punch 23 is used to press against the inner horizontal bottom surface of the C-shaped steel 3 to punch it.

[0050] In any of the above solutions, preferably, a sliding support plate 24 is fixedly connected to the bottom of the clamping plate 6 , and both ends of the sliding support plate 24 are respectively inserted into horizontal slots on the corresponding side walls of the lower installation box 2 .

[0051] The sliding support plate 24 is fixedly connected to the bottom of the clamping plate 6, and its two ends are movably inserted into the horizontal slots on the corresponding side walls of the lower installation box 2. When the first electric cylinder 5 drives the clamping plate 6 to move horizontally, the sliding support plate 24 moves along with the clamping plate 6 with the cooperation of the corresponding slots, so that the clamping plate 6 can be provided with support when the clamping plate 6 clamps and fixes the C-shaped steel, thereby reducing the load of the first electric cylinder 5.

[0052] In any of the above solutions, preferably, both ends of the connecting rod 21 are respectively inserted into horizontal slots on the corresponding side walls of the upper installation box 1 .

[0053] The two ends of the connecting rod 21 are respectively inserted into the horizontal slots on the corresponding side walls of the upper installation box 1, so that the horizontal movement of the second hydraulic cylinder 22 and the punch 23 is smoother and the load of the third electric cylinder 20 can be reduced.

[0054] In any of the above solutions, preferably, a waste collection pool 25 is fixedly provided below the middle of the support plate 11 .

[0055] The waste collection pool 25 is used to collect waste discharged through the material return chute 16 and the waste discharge chute 19 .

[0056] Specific working principle:

[0057] When the C-shaped steel 3 is transferred between the upper installation box 1 and the lower installation box 2, the operator first controls the first electric cylinder 5 to drive the clamping plate 6 to move horizontally, thereby completing the clamping and fixing of the bottom and the side walls of the C-shaped steel 3, and then controls the second electric cylinder 14 to drive the stripping block 15 to move horizontally to just below the opening position of the C-shaped steel 3, and then controls the third electric cylinder 20 to drive the punch 23 to move horizontally to just above the opening position of the C-shaped steel 3, and then respectively controls the first hydraulic cylinder 12 and the second hydraulic cylinder 22 to work and extend, thereby respectively driving the stripping block 15 to move horizontally to just below the opening position of the C-shaped steel 3. The material block 15 and the punch 23 move toward the C-shaped steel 3, and finally make the material return block 15 abut against the outer bottom surface of the C-shaped steel 3, and the punch 23 abuts against the corresponding position of the inner bottom surface of the C-shaped steel 3, and then the second hydraulic cylinder 22 works, and the punch 23 passes through the bottom of the C-shaped steel 3 to complete the punching of the C-shaped steel 3, and at the same time, the lower end of the punch 23 continues to extend into the material return trough 16, and the waste falls into the waste collection pool 25 through the material return trough 16 and the waste outlet trough 19, and then the first hydraulic cylinder 12 and the second hydraulic cylinder 22 are controlled to work and retract respectively.

[0058] By controlling the extension distance of the second electric cylinder 14 and the third electric cylinder 20, the opening positions with different spacing sizes can be realized. When it is necessary to open holes at different positions of the C-shaped steel 3, under the action of the first rolling wheel 8 and the second rolling wheel 10, the C-shaped steel 3 can move more smoothly, and when it moves to the corresponding position, the punching operation is repeated to complete the punching.

[0059] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0060] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A multifunctional punching device for C-shaped steel processing, characterized in that: The invention comprises an upper installation box (1) which is fixedly arranged, the bottom surface of the upper installation box (1) being open, a lower installation box (2) being fixedly arranged below the upper installation box (1), the top surface of the lower installation box (2) being open, and two hydraulic punching units which are symmetrically arranged on the left and right, the upper ends of the two hydraulic punching units being respectively fixedly connected to the left and right vertical inner walls of the upper installation box (1), the lower ends of the two hydraulic punching units both extending vertically to the bottom of the upper installation box (1), and two clamping units which are symmetrically arranged on the left and right, the two clamping units The outer ends are respectively fixedly connected to the tops of the left and right vertical side walls of the lower installation box (2), the inner ends of the two clamping units respectively extend horizontally to the middle of the lower installation box (2) and are used to clamp and fix the C-shaped steel (3), a lifting structure is fixedly connected to the bottom of the inner cavity of the lower installation box (2), and two waste discharge units are symmetrically arranged on the top of the lifting structure, the outer ends of the two waste discharge units are respectively fixedly connected to the left and right sides of the top surface of the lifting structure, and the inner ends of the two waste discharge units are respectively slidably connected to the middle of the top surface of the lifting structure.

2. A multifunctional punching device for C-shaped steel processing according to claim 1, characterized in that: The clamping unit comprises a first fixing block (4), the first fixing block (4) being fixedly connected to the top surface of the corresponding side wall of the lower installation box (2), the inner side wall of the first fixing block (4) being fixedly connected to the outer end of the first electric cylinder (5), the inner end of the first electric cylinder (5) extending horizontally to the middle of the lower installation box (2) and being fixedly connected to the clamping assembly.

3. A multifunctional punching device for C-shaped steel processing according to claim 2, characterized in that: The clamping assembly comprises a clamping plate (6) having a vertical cross-section in the shape of an angle steel, the inner end of the first electric cylinder (5) being fixedly connected to the vertical outer wall of the clamping plate (6), a first mounting groove (7) being provided on the horizontal plate surface inside the clamping plate (6) along its length direction, a plurality of first rolling wheels (8) being installed at intervals in the first mounting groove (7) along its length direction, a second mounting groove (9) being provided on the vertical plate surface inside the clamping plate (6) along its length direction, a plurality of second rolling wheels (10) being installed at intervals in the second mounting groove (9) along its length direction, each of the first rolling wheels (8) being used to abut against the bottom surface of the C-shaped steel (3), and each of the second rolling wheels (10) being used to abut against the vertical outer wall of the C-shaped steel (3).

4. A multifunctional punching device for C-shaped steel processing according to claim 3, characterized in that: The lifting structure comprises a support plate (11), and a plurality of first hydraulic cylinders (12) are fixedly connected in a vertical direction on the left and right sides of the bottom of the support plate (11), and the lower end of each of the first hydraulic cylinders (12) is fixedly connected to the bottom surface of the inner cavity of the lower installation box (2). The outer ends of the two waste discharge units are fixedly connected to the left and right sides of the top surface of the support plate (11), and the inner ends of the two waste discharge units are slidably connected to the middle of the top surface of the support plate (11).

5. The multifunctional punching device for C-shaped steel processing according to claim 4, characterized in that: The waste material discharging unit comprises a second fixed block (13), the second fixed block (13) being fixedly connected to the top surface of the corresponding side of the support plate (11), the inner side wall of the second fixed block (13) being fixedly connected to the outer end of the second electric cylinder (14), the inner end of the second electric cylinder (14) being fixedly connected to a material stripping block (15), the bottom of the material stripping block (15) being slidably connected to the support plate (11).

6. A multifunctional punching device for C-shaped steel processing according to claim 5, characterized in that: A material return groove (16) is provided in the middle of the material return block (15) in a vertical direction, and a sliding guide groove (17), a clamping assembly groove (18) and a waste material discharge groove (19) are provided in sequence from top to bottom at a corresponding position in the middle of the support plate (11). The lower end of the material return block (15) passes through the sliding guide groove (17) and is clamped in the clamping assembly groove (18). The circumferential outer side wall at the corresponding position of the lower part of the material return block (15) abuts against the inner side wall of the sliding guide groove (17), and the material return groove (16) is connected to the waste material discharge groove (19).

7. A multifunctional punching device for C-shaped steel processing according to claim 6, characterized in that: The hydraulic punching unit comprises a third electric cylinder (20), the outer end of the third electric cylinder (20) being fixedly connected to the inner wall of the corresponding side of the upper mounting box (1), the inner end of the third electric cylinder (20) extending horizontally to the middle of the upper mounting box (1) and being fixedly connected to a connecting rod (21), the bottom surface of the connecting rod (21) being fixedly connected to the upper end of a second hydraulic cylinder (22), and the lower end of the second hydraulic cylinder (22) being fixedly connected to a punch (23).

8. The multifunctional punching device for C-shaped steel processing according to claim 7, characterized in that: A sliding support plate (24) is fixedly connected to the bottom of the clamping plate (6), and two ends of the sliding support plate (24) are respectively inserted into horizontal slots on corresponding side walls of the lower installation box (2).

9. The multifunctional punching device for C-shaped steel processing according to claim 8, characterized in that: The two ends of the connecting rod (21) are respectively inserted into horizontal slots on the corresponding side walls of the upper installation box (1).

10. A multifunctional punching device for C-shaped steel processing according to claim 9, characterized in that: A waste collection pool (25) is fixedly provided below the middle portion of the support plate (11).

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