Section steel punching machining device for steel structure manufacturing

Abstract

The invention belongs to the technical field of profile steel punching machining, particularly relates to a profile steel punching machining device for steel structure manufacturing, is particularly suitable for multi-face punching machining of profile steel, and belongs to the field of steel structure manufacturing. According to the device, through the synergistic effect of the conveying mechanism and the turning mechanism, stable conveying and multi-angle punching of the profile steel are achieved. The conveying mechanism comprises a driving mechanism, a clamping conveying mechanism and a pressing mechanism, it is guaranteed that the profile steel does not shake in the conveying process through multiple linkage, and punching position deviation is avoided; the turning mechanism adjusts the turning frame through the driving assembly, so that the perforating machine can accurately perforate the four sides of the profile steel, and therefore the production efficiency and the perforating precision are improved. The device is compact in structure and high in automation degree, not only reduces manual carrying and section steel overturning times, but also effectively solves the problem of multi-surface punching in the traditional technology, and has a good technical effect and a wide application prospect.

Description

Technical Field

[0001] The invention belongs to the technical field of steel section punching processing, and in particular relates to a steel section punching processing device for steel structure manufacturing. Background Art

[0002] As an important component in the manufacture of steel structures, punching of steel sections is an indispensable part of the steel structure manufacturing process. Existing punching of steel sections usually uses traditional mechanical or CNC punching equipment to punch holes on one side or in a few directions. If it is necessary to punch holes on multiple sides of the steel section, it is often necessary to flip or reposition the steel section manually or with the help of a simple transfer structure. This operation is not only time-consuming and labor-intensive, but also prone to deviations in the punching position due to inaccurate positioning of the steel section, thus affecting the subsequent assembly accuracy and performance.

[0003] In the existing steel section punching processing device, common problems include: 1. The steel is prone to shaking during transportation. Since the steel is long and heavy, if the conveying mechanism lacks the corresponding clamping or clamping structure, the steel is prone to shaking left and right or up and down during transportation, resulting in deviations in the punching position and even adversely affecting the stable operation of the punching machine.

[0004] 2. It is difficult to punch holes on multiple sides. Most traditional devices can only punch holes on one side or a limited number of sides. If multiple sides of the steel are to be punched in sequence, it is necessary to repeatedly move or manually transfer between different workstations, which reduces production efficiency and increases safety hazards during operation.

[0005] 3. It is difficult to balance punching accuracy and efficiency. When punching steel, if the positioning method is not reliable or there is a lack of an automatically adjustable direction-changing mechanism, it is difficult to ensure punching accuracy and process efficiency when the punching surface is frequently changed. At the same time, due to the differences in shape and size of steel, there is also a lack of a unified automatic adjustment mechanism for different types of steel during transportation and punching.

[0006] In summary, the existing technology has problems such as unstable positioning, cumbersome manual operation and difficulty in ensuring drilling accuracy when conveying and punching holes on multiple sides of steel sections. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a steel section punching processing device for steel structure manufacturing, which can realize automatic punching of four sides of the steel section through the linkage of a conveying mechanism and a changing mechanism.

[0008] To achieve the above object, the present invention provides the following technical solutions: A steel section punching processing device for steel structure manufacturing, comprising a conveying mechanism, the conveying mechanism is used to convey the steel section to be punched, the output end of the conveying mechanism is connected to a changing mechanism, and a punching machine for punching holes in the steel section is arranged on one side of the changing mechanism; The direction-changing mechanism comprises a frame body fixedly connected to the conveying mechanism, a driving assembly is arranged on the top of the frame body, and a direction-changing frame is rotatably connected to one side of the frame body, and the punching machine is installed on the side of the direction-changing frame; When punching holes in the steel section, the driving component drives the direction-changing frame to rotate, thereby driving the punching machine to punch holes in the steel section at multiple angles.

[0009] Furthermore, the frame body includes a connecting frame, and a gear frame is fixedly connected to one side of the top of the connecting frame; The driving assembly includes a fourth motor connected to the top of the connecting frame; rotating the driven gear and the contact gear disposed in the gear frame; The output end of the fourth motor is provided with a driving gear meshing with the driven gear; The driven gear meshes with the contact gear.

[0010] Furthermore, the direction-changing frame includes a mounting plate rotatably connected to one side of the gear frame; a positioning column is fixedly connected to one side of the gear frame, a guide groove is penetrated through the side of the mounting plate, the positioning column penetrates the guide groove, and a stop plate is provided at one end of the positioning column to limit the mounting plate.

[0011] Furthermore, a through slot is formed through the side of the mounting plate, and the steel to be punched passes through the through slot; A linkage rack is connected to the side of the mounting plate, and the linkage rack is meshed with the contact gear; The side surface of the linkage rack is connected with an arc-shaped stopper.

[0012] Furthermore, the conveying mechanism includes a conveying frame, which is used to support the steel section to be punched; A driving mechanism for driving the steel to be punched is provided on the inner side of one end of the conveying frame; A clamping conveying mechanism is provided inside the other end of the conveying frame, which is used to clamp the steel sections being conveyed and provide power support for the conveying of the steel sections; A pressing mechanism is provided on the top of the conveying frame, which applies pressure to the top of the steel section being conveyed, so that the steel section fits tightly on the conveying frame during the conveying process.

[0013] Furthermore, the conveying frame includes side plates arranged opposite to each other, the inner sides of the side plates are fixedly connected with transverse plates, the transverse plates are distributed along the length direction of the side plates, and support rollers are rotatably arranged inside the side plates; During the conveying process of the steel section, the support roller is in contact with the lower end surface of the steel section.

[0014] Further, the driving mechanism includes a first motor mounted on the transverse plate; Rotating a driving roller disposed inside the side plate; A belt is connected between the output end of the first motor and the driving roller.

[0015] Furthermore, the clamping and conveying mechanism includes a double-headed cylinder, both telescopic ends of the double-headed cylinder are connected to a mounting plate, a side of the mounting plate is fixedly connected to a support plate, a second motor is arranged at the bottom of one end of the support plate, a driving pulley is arranged at the output end of the second motor, and a driven pulley is arranged above the other end of the support plate; A pulley is connected between the driving pulley and the driven pulley; A connecting head is arranged on the outer side of the mounting plate, and the connecting head is connected to the telescopic end of the double-head cylinder. Furthermore, the pressing mechanism includes a third motor installed on the top of the side plate, the output end of the third motor is connected to a linkage arm, and one end of the linkage arm is rotatably connected to a pressing roller; When the steel section is conveyed, the third motor drives the linkage arm to make the lower pressure roller fit against the upper end surface of the steel section.

[0016] Furthermore, a connecting plate is fixedly connected to the outer side of the side plate, and the connecting frame is connected to the connecting plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: Through the cooperation of the conveying mechanism and the direction-changing mechanism, the steel section can be supported stably in all directions during the conveying process, thereby reducing the left-right or up-and-down shaking of the steel section when it moves. The conveying mechanism uses the first motor, the double-headed cylinder and the third motor to work together, which not only keeps the steel section stable in the horizontal direction, but also clamps and presses it down. This can effectively avoid the drilling position deviation caused by unstable positioning in traditional equipment, and also improve the overall drilling accuracy and efficiency.

[0018] The drive assembly drives the direction-changing frame to rotate and adjust, so that the punching machine can achieve multi-angle punching operations. The mounting plate meshes with the linkage rack and the contact gear, so that the punching machine can easily reach multiple sides of the steel section without having to flip the steel section multiple times. This helps to solve the problem that traditional devices need to repeatedly transfer or move the steel section to complete multi-side punching, which not only reduces manpower and time costs, but also ensures the stability of the steel section during the punching process, further improving the effect of multi-side punching.

[0019] The improved conveying mechanism and the direction-changing mechanism can work together to realize the automatic conveying and direction-changing adjustment of the steel section, ensuring the accurate positioning of the steel section when entering the punching position. The driving roller cooperates with the clamping mechanism and the pressing mechanism to provide comprehensive clamping and up and down pressing functions for the steel section, and the steel section is stably conveyed to the vicinity of the direction-changing mechanism under the drive of the driving motor. In this way, even steel sections with longer dimensions can be smoothly conveyed and efficiently punched on multiple sides with the help of the multiple linkage structure inside the device, effectively meeting the requirements for high-efficiency and high-precision punching in the background technology.

[0020] The whole machine has a compact structure. The turning mechanism composed of the mounting plate, gear rack, driving gear, driven gear and contact gear enables the puncher to rotate in an arc around the steel section, avoiding the previous devices taking up too much space or requiring additional auxiliary tooling in the positioning or steering links. With the structural design of arc-shaped stops and through slots, the device greatly improves the feasibility of multi-side punching operations while maintaining stable transportation of steel sections, overcoming the shortcomings of traditional technologies that are difficult to punch holes on multiple sides of steel sections and difficult to ensure punching accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the conveying mechanism of the present invention; Figure 3 It is a structural schematic diagram of the conveying frame of the present invention; Figure 4 It is a structural schematic diagram of the driving mechanism of the present invention; Figure 5 The structure diagram of the clamping and conveying mechanism of the present invention is shown in FIG. Figure 1 ; Figure 6 The structure diagram of the clamping and conveying mechanism of the present invention is shown in FIG. Figure 2 ; Figure 7 It is a structural schematic diagram of the pressing mechanism of the present invention; Figure 8 It is a structural schematic diagram of the direction-changing mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the punching machine of the present invention; Fig.10 It is a structural schematic diagram of the frame of the present invention; Fig.11 It is a structural schematic diagram of the direction-changing frame of the present invention; Fig.12 It is a structural schematic diagram of the installation disk of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Conveying mechanism; 11. Conveyor rack; 111, side plate; 1111, connecting plate; 112, transverse plate; 113, supporting roller; 12. Driving mechanism; 121. first motor; 122. driving roller; 123. belt; 13. Clamping and conveying mechanism; 131, double-headed cylinder; 132, mounting plate; 1321, connector; 1322, support plate; 133, second motor; 134, driving pulley; 135, driven pulley; 136, pulley; 14. Pressing mechanism; 141, third motor; 142, linkage arm; 143, lower pressure roller; 2. Direction-changing mechanism; 21. Frame; 211, connecting frame; 212, gear frame; 2121, positioning column; 22. Drive components; 221, fourth motor; 2211, driving gear; 222, driven gear; 223, contact gear; 23. Direction change frame; 231. Mounting plate; 2311. Guide groove; 2312. Through groove; 232. Linkage rack; 233. Arc stopper; 3. Punch. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0024] See also Figure 1-12 , a steel punching processing device for steel structure manufacturing, comprising a conveying mechanism 1, the conveying mechanism 1 is used to convey the steel to be punched, the output end of the conveying mechanism 1 is connected to a turning mechanism 2, and a punching machine 3 for punching holes in the steel is arranged on one side of the turning mechanism 2; when in use, the conveying mechanism 1 conveys and positions the steel in multiple directions under the linkage of components such as a first motor 121, a double-headed cylinder 131 and a third motor 141; the turning mechanism 2 uses a fourth motor 221 to drive the turning frame 23 to rotate, so that the punching machine 3 can approach each side of the steel to punch holes; when the steel is conveyed and punched at multiple angles, the cooperation between the conveying mechanism 1 and the turning mechanism 2 can effectively avoid the shaking of the steel in the left and right or up and down directions, and meet the stability requirements when punching holes on multiple sides of the steel; through this structure, the accuracy of the steel in the punching operation can be improved, and the problem of inaccurate positioning of the steel and the difficulty in balancing the punching efficiency proposed in the background technology can be solved.

[0025] See also Figure 8-12 The frame 21 includes a connecting frame 211, and a gear frame 212 is fixedly connected to one side of the top of the connecting frame 211; the driving assembly 22 includes a fourth motor 221 connected to the top of the connecting frame 211; a driven gear 222 and a contact gear 223 are rotatably arranged in the gear frame 212; the output end of the fourth motor 221 is provided with a driving gear 2211 meshing with the driven gear 222; the driven gear 222 meshes with the contact gear 223; when the fourth motor 221 drives the driving gear 2211 to rotate, the driven gear 222 and the contact gear 223 rotate synchronously, and the contact gear 223 drives the changing frame 23 to rotate around the steel section through the meshing linkage rack 232; in this way, the driving assembly 22 can be used to accurately punch holes on four sides or at multiple angles of the steel section, thereby reducing the frequency of flipping and repeated positioning of the steel section, and overcoming the problem of difficulty in multi-side punching in the background technology.

[0026] See also Figure 8-12 The direction-changing frame 23 includes a mounting plate 231 rotatably connected to one side of the gear frame 212; a positioning column 2121 is fixedly connected to one side of the gear frame 212, a guide groove 2311 is penetrated through the side of the mounting plate 231, the positioning column 2121 penetrates the guide groove 2311, and a baffle plate for limiting the mounting plate 231 is provided at one end of the positioning column 2121; when the mounting plate 231 cooperates with the linkage rack 232, after the steel section is conveyed to the predetermined position, the fourth motor 221 drives the driving gear 2211, the driven gear 222 and the contact gear 223 to rotate, so that the mounting plate 231 is adjusted in an arc shape around the steel section; this method helps to further improve the flexibility of the device in the process of punching holes on multiple sides of the steel section, and helps to reduce the time and position deviation caused by manual rotation of the steel section.

[0027] See also Figure 9-12 A through slot 2312 is provided through the side of the mounting plate 231, and the steel section to be punched passes through the through slot 2312; a linkage rack 232 is connected to the side of the mounting plate 231, and the linkage rack 232 is meshed with the contact gear 223; an arc-shaped stopper 233 is connected to the side of the linkage rack 232; when the steel section is transported and positioned, the through slot 2312 can ensure that the steel section passes through the mounting plate 231 smoothly, and the linkage rack 232 realizes the rotation of the direction-changing frame 23 by meshing with the contact gear 223; the arc-shaped stopper 233 can perform preliminary positioning and protection on the steel section during the rotation process, reduce the shaking problem caused by the excessive length of the steel section, and further ensure the stability when punching holes on multiple sides.

[0028] See also Figure 2-3The conveying mechanism 1 includes a conveying frame 11, which is used to support the steel section to be punched; a driving mechanism 12 for driving the steel section to be punched is arranged on the inner side of one end of the conveying frame 11; a clamping conveying mechanism 13 is arranged inside the other end of the conveying frame 11, and the clamping conveying mechanism 13 is used to press the steel section being conveyed and provide power support for the conveying of the steel section; a pressing mechanism 14 is arranged on the top of the conveying frame 11, and the pressing mechanism 14 applies pressure to the top of the steel section being conveyed, so that the steel section fits tightly on the conveying frame 11 during the conveying process; during the conveying process of the steel section, the driving mechanism 12 forms a linkage relationship with the clamping conveying mechanism 13 and the pressing mechanism 14 to ensure the stability of the steel section in the up and down and left and right directions; this stable conveying method can ensure the consistency of the punching accuracy and position when the steel section arrives near the turning mechanism 2, thereby effectively coping with the problem of shaking easily occurring during the conveying process of the steel section mentioned in the background technology.

[0029] See also Figure 2-3 The conveying frame 11 includes side plates 111 that are arranged opposite to each other, and a transverse plate 112 is fixedly connected to the inner side of the side plate 111. The transverse plate 112 is distributed along the length direction of the side plate 111, and a supporting roller 113 is rotatably arranged inside the side plate 111; during the conveying process of the steel section, the supporting roller 113 is attached to the lower end surface of the steel section; the transverse plate 112 plays a stabilizing supporting role between the side plates 111, so that the steel section can be conveyed straight in the length direction; the supporting roller 113 forms a rolling contact with the steel section when it is attached, thereby reducing the conveying resistance, and cooperates with the clamping conveying mechanism 13 to reduce the left and right shaking of the steel section.

[0030] See also Figure 4 The driving mechanism 12 includes a first motor 121 installed on the cross plate 112; a driving roller 122 rotatably arranged inside the side plate 111; a belt 123 is connected between the output end of the first motor 121 and the driving roller 122; the first motor 121 drives the driving roller 122 to rotate through the belt 123, thereby driving the steel section to move forward in the direction of the changing mechanism 2; the driving roller 122 maintains a fitting relationship with the lower end surface of the steel section, and together with the subsequent clamping and conveying mechanism 13, provides continuous and stable conveying power for the steel section; in this way, the steel section can maintain stable movement before multi-sided drilling, thereby meeting the requirements of improving drilling efficiency and accuracy in the background technology.

[0031] See also Figure 1-12The clamping and conveying mechanism 13 includes a double-headed cylinder 131, and the two telescopic ends of the double-headed cylinder 131 are connected to a mounting plate 132. The side of the mounting plate 132 is fixedly connected to a support plate 1322. A second motor 133 is provided at the bottom of one end of the support plate 1322, and a driving pulley 134 is provided at the output end of the second motor 133. A driven pulley 135 is provided above the other end of the support plate 1322; a pulley 136 is connected between the driving pulley 134 and the driven pulley 135; a connector 1321 is provided on the outer side of the mounting plate 132, and the connector 1 321 is connected to the telescopic end of the double-headed cylinder 131; when working, the double-headed cylinder 131 drives the mounting plates 132 to approach each other, so that the pulleys 136 fit on both sides of the steel section to form a clamp and provide auxiliary power; the second motor 133 drives the pulley 136 to operate by driving the pulley 134, thereby realizing the lateral clamping and driving of the steel section; when the steel section moves to the punching area, the clamping and conveying mechanism 13 and the driving mechanism 12 work together to ensure the stable positioning of the steel section and provide sufficient space and power support for punching holes on all four sides of the steel section, thereby avoiding lateral shaking that affects the punching accuracy.

[0032] See also Figure 7 The pressing mechanism 14 includes a third motor 141 installed on the top of the side plate 111, the output end of the third motor 141 is connected to a linkage arm 142, and one end of the linkage arm 142 is rotatably connected to a pressing roller 143; when the steel section is conveyed, the third motor 141 drives the linkage arm 142 to make the pressing roller 143 fit the upper end surface of the steel section; the pressing roller 143 is driven by the third motor 141 to effectively press the upper end surface of the steel section, thereby cooperating with the clamping and conveying mechanism 13 to suppress the shaking of the steel section in the vertical direction; through this pressing structure, the steel section can maintain a stable vertical position during the conveying process, providing a good premise for subsequent multi-side punching, and improving the punching quality and efficiency of the entire processing device.

[0033] See also Figure 3 and Fig.10 , a connecting plate 1111 is fixedly connected to the outer side of the side plate 111, and a connecting frame 211 is connected to the connecting plate 1111; the connecting plate 1111 and the connecting frame 211 form an integral structure to ensure the firm installation between the conveying mechanism 1 and the changing mechanism 2; the fourth motor 221, the gear frame 212, the driven gear 222 and the contact gear 223 complete the driving of the changing frame 23 with the cooperation of the connecting frame 211, so that the punching machine 3 can smoothly perform multi-angle punching; when working as a whole, the conveying mechanism 1 cooperates with the changing mechanism 2 and the punching machine 3 to achieve multi-sided punching, overcoming the limitation of the background technology that medium-sized steel can only be punched on one side or in a few directions, and through the stable conveying and positioning structure, the manual handling and flipping of the steel are reduced, and the efficient and precise processing of the steel used for steel structure manufacturing is achieved.

[0034] Embodiment 2: This embodiment aims to verify the effect of reducing the left and right or up and down shaking of the steel section during movement by coordinating the conveying mechanism with the upper and lower clamping and left and right clamping structures; specifically, it includes the coordinated control of the conveying mechanism 1 with the first motor 121, the double-headed cylinder 131, the third motor 141 and other components, and testing the stability of the steel section conveying under different working conditions.

[0035] In this embodiment, the driving roller 122 of the conveying mechanism 1 is made of alloy steel material with model HTR-120, and a polymer anti-slip coating is installed on the outside of the driving roller 122, and the friction coefficient μ is about 0.35; the double-headed cylinder 131 uses a QGCD-1000×200 cylinder with a thrust of 1000N and a stroke of 200mm, and a working pressure of 0.6MPa; the third motor 141 uses a YVF2-132S-4 variable frequency motor with a power of 2.2kW and a rated speed of 1500r / min; in the process of conveying Q235 steel (size 200mm×100mm×8mm), the lower pressure roller 143 cooperates with the double-headed cylinder 131 to press and clamp the upper end surface and both sides of the steel to ensure the stability of the steel in the conveying direction and the vertical direction.

[0036] To further illustrate the effect, the comparative test conditions are set as follows: ambient temperature is 25±2℃, relative humidity is 50%±5%, the length of the steel section is uniformly 4m, and the conveying speed is set at 5m / min; the control variables include: 1) whether the clamping conveying mechanism 13 is used; 2) whether the pressing mechanism 14 is used; 3) whether the driving roller 122 has an anti-slip coating; The experimental data are shown in the table below.

[0037]

[0038] It can be seen from the above table that the experimental data of Group 5 (i.e., using the clamping conveying mechanism 13 and the pressing mechanism 14, and installing an anti-slip coating on the driving roller 122) is the best. The swing amplitude of the steel section is only ±0.8mm, the punching error can be controlled within ±0.6mm, and the qualified rate is 98%, which is significantly better than other groups.

[0039] In this embodiment, to further illustrate the friction between the steel section and the driving roller 122, the friction calculation formula can be used: F = μ × N Among them, F is the friction force, μ is the friction coefficient, and N is the positive pressure acting vertically on the contact surface between the driving roller 122 and the steel section. It can be seen from the formula that increasing the friction coefficient or increasing the positive pressure can improve the stability of transportation, thereby reducing the left and right and up and down shaking amplitude of the steel section.

[0040] Embodiment 3; This embodiment is mainly aimed at experimental verification of the multi-angle rotation punching of the punching machine 3 driven by the fourth motor 221 under the direction changing mechanism 2; the focus is on explaining the linkage principle between the mounting plate 231, the linkage rack 232, the contact gear 223 and the driven gear 222, and the effectiveness in multi-side punching.

[0041] In this embodiment, the fourth motor 221 is a YZP-180M-4 servo motor with a power of 3.0 kW and a rated speed of 1000 r / min; the module of the driving gear 2211 is 2.5, and the module of the driven gear 222 and the contact gear 223 is also selected to be 2.5 to ensure synchronous meshing; the mounting plate 231 is made of QT450 ductile iron, and the through slot 2312 set on the side is , which can meet the largest steel sections The passing requirements; During the experiment, three different types of steel were selected: Q235, Q345 and 20MnV. Four holes were punched on each steel and the rotation angle was controlled as follows: and The variables of the comparative test include: 1) different steel materials; 2) the rated speed of the punch 3 is maintained at 500r / min; 3) the speed of the mounting plate 231 is set at 2r / min; other conditions such as ambient temperature and humidity are consistent with the above-mentioned embodiment; the experimental data are shown in the table below.

[0042]

[0043] It can be seen from the above table that under the same rotation speed and positioning conditions, the direction-changing mechanism 2 can ensure that the cumulative error of the hole position is always maintained within ±1.1mm during multi-sided drilling, and has good adaptability to steel sections of different materials; when 20MnV material is used (Group 4), the multi-sided drilling efficiency reaches 2.3 holes / min, and the qualified rate reaches 95%.

[0044] When the mounting plate 231 is rotated, the relationship between the motor output power and the rotation positioning requirement of the punch 3 can be described by the torque formula:

[0045] Wherein, T is torque (N·m), P is output power (kW), and n is rotation speed (r / min); in this device, appropriate torque setting can ensure the stability and accuracy of the punch 3 when positioning at multiple angles.

[0046] Embodiment 4: This embodiment tests the automatic linkage between the conveying mechanism 1 and the redirecting mechanism 2, focusing on examining whether the redirecting mechanism 2 can accurately drive the punching machine 3 to complete the punching operation on the surrounding surfaces after the steel section is conveyed to the punching position, and ensure the positioning accuracy and conveying efficiency.

[0047] In this embodiment, the first motor 121 of the conveying mechanism 1 has a power of 1.5 kW and a rated speed of 1400 r / min; the second motor 133 in the clamping conveying mechanism 13 has a power of 1.2 kW and a rated speed of 1500 r / min; the third motor 141 of the pressing mechanism 14 has a power of 1.1 kW and a rated speed of 1400 r / min; the motors and the double-headed cylinder 131 are centrally controlled by a PLC (model Siemens S7-1200); different specifications of steel (such as Punching tests were conducted at conveying speeds of 3m / min, 5m / min and 7m / min. To highlight the degree of automation, the comparison conditions were set as follows: 1) manual shifting; 2) automatic direction-changing mechanism shifting; 3) comprehensive consideration of whether to open the pressing mechanism 14; under the same ambient temperature and the same steel material, the test results are shown in the following table.

[0048]

[0049] It can be seen from the above table that, compared with manual transfer, the automatic direction-changing mechanism 2 under PLC control can significantly reduce the positioning error and achieve a higher number of holes punched per unit time; the coordination of the clamping and conveying mechanism 13 and the pressing mechanism 14 enables the steel section to maintain good stability during high-speed transportation; especially at a high speed of 7m / min, although the qualified rate is slightly reduced, it can still be maintained at 88%, which is enough to illustrate the advantages of automated transportation and direction-changing adjustment in high-efficiency production needs.

[0050] Embodiment 5: This embodiment is mainly used to test the actual application of the device in a small factory or a compact production line, so as to highlight the role of components such as the mounting plate 231, the gear rack 212 and the arc-shaped stopper 233 in reducing space occupancy and assisting positioning.

[0051] In this embodiment, the outer diameter of the mounting plate 231 is φ600mm, the thickness is 20mm, the overall height of the gear rack 212 is 400mm, and the width is 200mm. The space occupied by the entire set of the changing mechanism 2 is reduced by more than 30% compared with the conventional manual indexing structure. In order to compare the impact of the space occupied by the device on the production efficiency and punching accuracy, the following control experiments are set up: 1) Use a traditional independent turning table for multi-sided punching; 2) Use the compact changing mechanism 2 in this embodiment; When other conveying conditions (such as conveying speed 5m / min, punching machine speed 500r / min, steel size 200×100×8) remain unchanged, the measured data are as follows.

[0052]

[0053] As can be seen from the above table, the present embodiment (group 2 and group 3) reduces the floor space to The single change of direction time is reduced to 3540s, and the average error of four-sided drilling is within The overall production efficiency can be increased to 13~14 pieces / h. By comparing Group 1, Group 4 and Group 5 (using independent turning tables), it can be found that the traditional turning method not only occupies a large area, but also takes a longer turning time, and the punching accuracy is difficult to achieve the expected level.

[0054] In this embodiment, the advantages of the compactness and high efficiency of the overall structure can be reflected without additional formulas, which is sufficient to illustrate that the integrated layout of the mounting plate 231, the gear rack 212 and the arc-shaped stopper 233 can significantly reduce the space occupancy while maintaining high accuracy and efficiency in the direction-changing operation.

[0055] In summary, the above four embodiments have been experimentally verified in terms of reducing the shaking of steel sections, multi-angle drilling, automatic transportation and directional adjustment, and compact structure of the whole machine, and are explained in combination with relevant data, materials, models and control variables; The experimental results show that the steel section drilling processing device for steel structure manufacturing described in this application is significantly superior to traditional solutions in various performance indicators, and can meet the high-efficiency and high-precision drilling requirements in a variety of production environments.

[0056] The working principle of the present invention is: When in use, the steel to be punched is placed on the conveying mechanism 1, and the conveying mechanism 1 conveys the steel to the position of the changing mechanism 2, and the position of the punching machine 3 is adjusted by the changing mechanism 2, so that the punching machine 3 can perform the punching operation on the steel; When the steel is transported on the conveying mechanism 1, the first motor 121 drives the driving roller 122 to rotate through the belt 123, and the driving roller 122 contacts the steel, so that the driving roller 122 drives the steel to move toward the punching machine 3; When the steel is moved, the double-headed cylinder 131 drives the two mounting plates 132 to approach each other, so that the pulleys 136 installed on the driving pulley 134 and the driven pulley 135 are fitted on both sides of the steel, and driven by the second motor 133, the pulleys 136 provide power support for the transportation of the steel; and the steel can be prevented from shaking left and right during transportation, so that the steel can be prevented from shaking left and right when punching holes in the steel. When the steel section moves, the third motor 141 drives the lower pressing roller 143 to move through the linkage arm 142, so that the lower pressing roller 143 fits the upper end surface of the steel section. The downward pressure of the lower pressing roller 143 can prevent the steel section from shaking up and down, thereby preventing the steel section from shaking up and down during the subsequent punching process of the steel section. When the steel section is conveyed to a predetermined position through the conveying mechanism 1, the fourth motor 221 drives the driven gear 222 and the contact gear 223 to rotate through the driving gear 2211, and the contact gear 223 engages with the linkage rack 232, thereby driving the mounting plate 231 to rotate around the steel section. When the puncher 3 installed on the side of the double-headed cylinder 131 is adjusted to a predetermined position, the puncher 3 can be used to punch holes in the steel section. In this way, the steel section can be punched on all four sides during the conveying process.

[0057] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A steel punching device for steel structure manufacturing, characterized in that: The conveying mechanism (1) comprises a conveying mechanism (1) for conveying a steel section to be punched, the output end of the conveying mechanism (1) is connected to a direction-changing mechanism (2), and a punching machine (3) for punching holes in the steel section is arranged on one side of the direction-changing mechanism (2); The direction-changing mechanism (2) comprises a frame (21) fixedly connected to the conveying mechanism (1), a driving assembly (22) is arranged on the top of the frame (21), and a direction-changing frame (23) is rotatably connected to one side of the frame (21), and the punching machine (3) is installed on the side of the direction-changing frame (23); When punching holes in the steel section, the driving assembly (22) drives the direction-changing frame (23) to rotate, thereby driving the punching machine (3) to punch holes in the steel section at multiple angles.

2. The steel section punching device for steel structure manufacturing according to claim 1, characterized in that: The frame body (21) comprises a connecting frame (211), and a gear frame (212) is fixedly connected to one side of the top of the connecting frame (211); The driving assembly (22) comprises a fourth motor (221) connected to the top of the connecting frame (211); a driven gear (222) and a contact gear (223) arranged in the gear frame (212) for rotating; The output end of the fourth motor (221) is provided with a driving gear (2211) meshing with the driven gear (222); The driven gear (222) meshes with the contact gear (223).

3. The steel section punching device for steel structure manufacturing according to claim 2, characterized in that: The direction-changing frame (23) comprises a mounting plate (231) rotatably connected to one side of the gear frame (212); a positioning column (2121) is fixedly connected to one side of the gear frame (212); a guide groove (2311) is penetrated through the side surface of the mounting plate (231); the positioning column (2121) penetrates the guide groove (2311); and a stop plate for limiting the mounting plate (231) is provided at one end of the positioning column (2121).

4. The steel section punching device for steel structure manufacturing according to claim 3 is characterized in that: A through slot (2312) is formed through the side of the mounting plate (231), and the steel section to be punched passes through the through slot (2312); A linkage rack (232) is connected to the side of the mounting plate (231), and the linkage rack (232) is meshed with the contact gear (223); An arc-shaped stopper (233) is connected to the side surface of the linkage rack (232).

5. The steel section punching device for steel structure manufacturing according to claim 1, characterized in that: The conveying mechanism (1) comprises a conveying frame (11), and the conveying frame (11) is used to support the steel section to be punched; A driving mechanism (12) for driving the steel to be punched is provided on the inner side of one end of the conveying frame (11); A clamping conveying mechanism (13) is disposed inside the other end of the conveying frame (11), and the clamping conveying mechanism (13) is used to clamp the steel sections being conveyed and to provide power support for the conveying of the steel sections; A pressing mechanism (14) is provided on the top of the conveying frame (11), and the pressing mechanism (14) applies pressure to the top of the steel section being conveyed, so that the steel section is tightly attached to the conveying frame (11) during the conveying process.

6. The steel section punching device for steel structure manufacturing according to claim 5, characterized in that: The conveying frame (11) comprises side plates (111) arranged opposite to each other, the inner sides of the side plates (111) are fixedly connected with transverse plates (112), the transverse plates (112) are distributed along the length direction of the side plates (111), and support rollers (113) are rotatably arranged inside the side plates (111); During the conveying process of the steel section, the support roller (113) is in contact with the lower end surface of the steel section.

7. The steel section punching device for steel structure manufacturing according to claim 6, characterized in that: The driving mechanism (12) comprises a first motor (121) mounted on the transverse plate (112); Rotating a driving roller (122) disposed inside the side plate (111); A belt (123) is connected between the output end of the first motor (121) and the driving roller (122).

8. The steel section punching device for steel structure manufacturing according to claim 6, characterized in that: The clamping and conveying mechanism (13) comprises a double-headed cylinder (131), the two telescopic ends of the double-headed cylinder (131) are both connected to a mounting plate (132), the side of the mounting plate (132) is fixedly connected to a support plate (1322), a second motor (133) is arranged at the bottom of one end of the support plate (1322), a driving pulley (134) is arranged at the output end of the second motor (133), and a driven pulley (135) is arranged above the other end of the support plate (1322); A pulley (136) is connected between the driving pulley (134) and the driven pulley (135); A connecting head (1321) is provided on the outer side of the mounting plate (132), and the connecting head (1321) is connected to the telescopic end of the double-head cylinder (131).

9. The steel section punching device for steel structure manufacturing according to claim 6, characterized in that: The pressing mechanism (14) comprises a third motor (141) mounted on the top of the side plate (111); the output end of the third motor (141) is connected to a linkage arm (142); one end of the linkage arm (142) is rotatably connected to a pressing roller (143); When the steel section is being transported, the third motor (141) drives the linkage arm (142) to make the lower pressure roller (143) fit against the upper end surface of the steel section.

10. The steel section punching device for steel structure manufacturing according to claim 6, characterized in that: A connecting plate (1111) is fixedly connected to the outer side of the side plate (111), and the connecting frame (211) is connected to the connecting plate (1111).

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