C-shaped steel three-facade multi-group punching and cutting equipment and working method thereof

Abstract

The invention discloses C-shaped steel three-facade multi-group punching and cutting equipment and a working method thereof, and relates to the technical field of C-shaped steel punching machining, the C-shaped steel three-facade multi-group punching and cutting equipment comprises a rack, the rack is sequentially provided with at least one web punching mechanism, at least one wing plate punching mechanism and a cutting device, and the web punching mechanism and the wing plate punching mechanism can conduct punching machining at the same time; the web punching mechanism, the wing plate punching mechanism and the cutting device are each provided with a servo driving mechanism, and the servo driving mechanisms are used for controlling the web punching mechanism, the wing plate punching mechanism and the cutting device to linearly move in the first direction. On one hand, C-shaped steel is directly punched, errors caused by material deformation in the process of punching and then forming are avoided, and the position precision and the shape precision of C-shaped steel punching machining are effectively improved; and on the other hand, the punching mechanisms and the cutting devices can conduct machining at the same time, so that the punching efficiency and the cutting efficiency are greatly improved, and continuous punching can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of C-shaped steel punching processing, and in particular to a C-shaped steel three-sided multi-group punching and cutting device and a working method thereof. Background Art

[0002] Photovoltaic brackets are supporting components for photovoltaic power generation, and their usage is increasing. The frames of existing photovoltaic brackets are mainly made of C-shaped steel or U-shaped steel. The existing production process of C-shaped steel or U-shaped steel for photovoltaic brackets generally involves purchasing unprocessed rolled steel strip raw materials from suppliers, and then undergoing a series of processing processes such as unwinding, forming, and punching. U-shaped steel only has holes on the web, and the holes are continuously spaced 50 mm apart. N-continuous punching dies or multiple shiftable gantry punching devices can be used to easily punch multiple holes at one time, and the punching speed is increased several times, greatly improving production efficiency. However, C-shaped steel has holes evenly distributed on the web and two wing surfaces, and each surface has a variety of hole types that need to be processed. The positions and shapes of the holes are different, making it difficult to complete the punching in one go using existing punching devices, and the processing efficiency is not high.

[0003] There are two existing C-steel processing technologies. One is to form the steel first and then transfer it to the punching area for punching. Since the punching speed of the C-steel is often not matched with the cold bending speed of the steel, it is difficult to be used with a cold bending machine. The steel requires multiple manual turnovers, which seriously restricts the production speed, production accuracy and hole position of the C-steel of the photovoltaic bracket.

[0004] The other is to punch holes first and then form them. For example, the Chinese patent CN202310806281.9 discloses a photovoltaic bracket C-shaped steel punching and forming production line. Although this solution solves the problem that the steel punching equipment and forming equipment are difficult to use together, it also has corresponding defects, such as: forming after punching. After forming, due to the tensile deformation of the material, the shape and position of the hole will change, which makes it difficult to ensure the accuracy of the C-shaped steel finished workpiece. In addition, in this solution, the start and stop of the punching device are controlled according to the feeding speed and the forming speed, and the buffer device is used to cache the steel strip, which means that forming is a continuous process, while punching is intermittent, and the efficiency of the entire production line can be improved. Moreover, each punching device is fixed after manual adjustment, and the punching cannot be tracked online. After each change of the production specification, it is necessary to manually re-adjust the fixed position, which also limits the processing efficiency of the C-shaped steel. Summary of the invention

[0005] In view of one or more deficiencies in the above-mentioned prior art, the present invention provides a C-shaped steel three-sided multi-group punching and cutting equipment and a working method thereof, which can solve many problems existing in the current C-shaped steel processing technology, effectively improve processing efficiency and product precision, and at the same time reduce the operating difficulty and labor intensity of staff.

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

[0007] In a first aspect, a C-shaped steel three-face multi-group punching and cutting device is provided, comprising a frame, on which at least one web punching mechanism, at least one wing plate punching mechanism and a cutting device are sequentially arranged, wherein the web punching mechanism and the wing plate punching mechanism can perform punching processing simultaneously;

[0008] The web punching mechanism, wing plate punching mechanism and cutting device are slidably connected to the frame at the bottom, and the web punching mechanism, wing plate punching mechanism and cutting device are respectively provided with servo drive mechanisms, and the servo drive mechanisms are used to control the web punching mechanism, wing plate punching mechanism and cutting device to move linearly along the first direction.

[0009] As a further implementation, the servo drive mechanism controls the moving direction and distance of the web punching mechanism, the wing plate punching mechanism or the cutting device according to the conveying speed of the C-shaped steel.

[0010] As a further implementation method, each web punching mechanism is composed of at least one group of web punching units, and the web punching unit includes a first base, a first positioning seat is installed on the first base, a web punch is arranged above the first positioning seat, and the web punch is driven by a first stamping drive member on the top; preferably, a first guide plate is provided above the first positioning seat, and a first guide hole corresponding to the web punch is opened on the first guide plate for the web punch to pass through.

[0011] As a further implementation method, the web punch is fixedly connected to the output end of the first stamping drive member through a connecting member, and the first stamping drive member is fixedly connected to the first base; the connecting member is fixedly connected to a vertically arranged lifting rod, and the lifting rod is arranged on the side of the first stamping drive member and a limit block is fixedly provided on the top; a limit seat slidably connected to the lifting rod is also fixedly provided on the side of the main body of the first stamping drive member, and a proximity switch is provided on the top of the limit seat; the first stamping drive member is controlled by the proximity switch to drive the downward pressing distance of the web punch to complete the set punching.

[0012] As a further implementation method, each wing plate punching mechanism includes a right wing plate punching unit and a left wing plate punching unit, and the right wing plate punching unit and the left wing plate punching unit are driven and controlled by a group of servo drive mechanisms, or the right wing plate punching unit and the left wing plate punching unit are respectively controlled by two groups of servo drive mechanisms.

[0013] As a further implementation method, the right wing plate punching unit and the left wing plate punching unit have the same structure; the right wing plate punching unit includes a second base, a second positioning seat is fixedly provided on the second base, a horizontally arranged stamping drive member and a wing plate punch are fixedly installed on the second positioning seat, a second guide plate is provided at the end of the wing plate punch, the second guide plate is fixedly connected to the second positioning seat, and a second guide hole is opened on the second guide plate for the wing plate punch to pass through, which guides the punching process of the wing plate punch and ensures the position accuracy of the punching.

[0014] As a further implementation, a support seat arranged on the back of the second positioning seat is fixedly mounted on the second base, and a vertically arranged second screw mechanism is installed on the top of the support seat for driving the second positioning seat to rise and fall relative to the supporting seat.

[0015] As a further implementation method, the second screw mechanism includes a second wire seat fixed on the support seat and a second screw cooperating with the second wire seat, the bottom of the second screw is fixedly connected to the second positioning seat, and a second handwheel is installed on the top of the screw. The second positioning seat can be controlled by the second screw mechanism to drive the stamping drive and the wing plate punch to rise and fall, and adjust the height position of the wing plate punch to adapt to the punching requirements of C-shaped steels of different specifications, and the handwheel is easy to operate.

[0016] As a further implementation method, each web punching mechanism and wing plate punching mechanism is provided with a conveying guide roller assembly for conveying C-shaped steel; the conveying guide roller assembly includes a first guide roller and a second guide roller whose axial direction is perpendicular to the conveying direction of the C-shaped steel, the second guide roller is fixedly mounted on the first base or the second base, the height of the first guide roller is lower than the second guide roller and is fixedly connected to the second guide roller, and the C-shaped steel passes between the first guide roller and the second guide roller when being conveyed.

[0017] As a further implementation, the bottoms of the web punching mechanism, the wing plate punching mechanism and the cutting device are respectively provided with mounting base plates, and the bottoms of the mounting base plates are slidably connected to the frame;

[0018] Preferably, the first base or the second base is respectively installed above the mounting base plate, and the first base or the second base is slidably connected to the mounting base plate; the first base or the second base is driven by a power mechanism to move linearly along the second direction, and the position of the web punch is adjusted according to different position requirements of punching holes on the C-shaped steel;

[0019] Preferably, the power mechanism adopts a first screw mechanism, which includes a first screw seat fixedly connected to the mounting base plate and a first screw threadedly connected to the first screw seat, one end of the first screw is fixedly connected to the first base, and the other end is equipped with a first hand wheel.

[0020] In a second aspect, a working method of a C-shaped steel three-sided multi-group punching and cutting device based on any one of the above items is provided, comprising:

[0021] For the C-shaped steel that is continuously transferred after being formed in the forming station, the web punching mechanism, the wing plate punching mechanism and the cutting device are processed in sequence, and the finished C-shaped steel is obtained after cutting by the cutting device;

[0022] The web punching mechanism, the wing punching mechanism and the cutting device operate on C-shaped steels at different positions simultaneously; that is, when the cutting device is cutting, at least one wing punching mechanism punches holes on the C-shaped steel at the next position at the same time, and at least one web punching mechanism punches holes on the web of the C-shaped steel at another position at the same time;

[0023] Among them, according to the real-time speed of C-shaped steel conveying, the servo drive mechanism can adjust the position of the web punching mechanism, the wing plate punching mechanism or the cutting device on the frame to ensure that the processing position of each station meets the C-shaped steel processing requirements.

[0024] As a further implementation method, when the web hole of the C-shaped steel to be processed is single or the distance between the first and last web holes is less than a set value, one web punching mechanism is used to complete the web punching process; when the distance between the first and last web holes is greater than the set value, two or more web punching mechanisms are used to complete the web punching process;

[0025] When the wing plate hole of the C-shaped steel to be processed is single or the distance between the first and last wing plate holes is less than the set value, one wing plate punching mechanism is used to complete the wing plate punching process; when the distance between the first and last wing plate holes is greater than the set value, two or more wing plate punching mechanisms are used to complete the wing plate punching process.

[0026] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0027] 1. The present invention can perform continuous punching processing on the formed C-shaped steel. On the one hand, the C-shaped steel is directly punched, which avoids the error caused by material deformation in the process of punching first and then forming, and effectively improves the position accuracy and shape accuracy of the C-shaped steel punching processing; on the other hand, the various punching mechanisms and cutting devices in the present application can be processed simultaneously, thereby greatly improving the punching and cutting efficiency, and realizing uninterrupted continuous punching.

[0028] 2. In the present invention, each punching mechanism and cutting device is individually servo-controlled, which can automatically track the conveying speed of the C-shaped steel, and adjust the front and rear positions of the punching mechanism or cutting device accordingly according to the real-time speed, so as to realize continuous punching of the C-shaped steel in the equipment without stopping or buffering, with fast punching speed and high hole position accuracy, which greatly improves the processing efficiency of the entire line.

[0029] 3. In the present invention, the punching of the three vertical surfaces is completed at different stations through the web punching mechanism and the wing plate punching mechanism, and the three stations can be processed simultaneously. Each punching station is individually controlled by a servo drive mechanism, which can realize tracking punching, improve processing efficiency and ensure the position accuracy of punching.

[0030] 4. The present invention utilizes the cooperation of multiple web punching mechanisms and wing plate punching mechanisms to achieve efficient punching of different hole shapes and quantities of C-shaped steels of different specifications; at the same time, the arrangement of the buffer mechanism is omitted, thus saving space and reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0033] Figure 2 This is a schematic diagram of a partial structure of a rack in Embodiment 1 of the present invention;

[0034] Figure 3 This is a schematic diagram of the installation of the web punching mechanism in the first embodiment of the present invention;

[0035] Figure 4 It is a schematic diagram of the partial installation of the wing plate punching mechanism in the first embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the first web punching mechanism in Embodiment 1 of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the second web punching mechanism in Embodiment 1 of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the third wing plate punching mechanism in the first embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of the punching unit of the right wing plate in the first embodiment of the present invention;

[0040] Fig. 9 It is a schematic diagram of the structure of the cutting device in the first embodiment of the present invention.

[0041] In the figure: 1, frame; 21, first web punching mechanism; 22, second web punching mechanism; 31, first wing punching mechanism; 32, second wing punching mechanism; 33, third wing punching mechanism; 4, cutting device; 5, servo drive mechanism; 6, conveying guide roller assembly; 7, first screw mechanism;

[0042] 101, motion guide rail; 102, slider; 103, mounting base plate; 104, sliding pair;

[0043] 201, web punching unit; 201-1, first base; 201-2, first positioning seat; 201-3, web punch; 201-4, connecting piece; 201-5, first hydraulic cylinder; 201-6, upper fixing seat; 201-7, column; 201-8, first guide plate; 201-9, guide hole; 201-10, lifting rod; 201-11, limit block; 201-12, limit seat;

[0044] 301, right wing plate punching unit; 302, left wing plate punching unit; 301-1, second base; 301-2, support seat; 301-3, second positioning seat; 301-4, wing plate punch; 301-5, second hydraulic cylinder; 301-6, second guide plate; 301-7, second guide hole; 301-8, second wire seat; 301-9, second screw rod; 301-10, second hand wheel;

[0045] 501, servo motor; 502, coupling; 503, ball screw pair;

[0046] 601, first guide roller; 602, second guide roller;

[0047] 701, first threaded rod; 702, first threaded rod; 703, first hand wheel. DETAILED DESCRIPTION

[0048] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0050] In this embodiment, the conveying direction of the C-shaped steel is defined as the first direction, and the direction perpendicular to the first direction is defined as the second direction.

[0051] Embodiment 1

[0052] In a typical embodiment of the present application, a C-shaped steel three-sided multi-group punching and cutting device is provided, such as Figure 1-7 As shown, it comprises a frame 1, on which at least one web punching mechanism, at least one wing plate punching mechanism and a cutting device 4 are sequentially arranged, and the web punching mechanism and the wing plate punching mechanism can perform punching processing at the same time;

[0053] The bottom of the web punching mechanism, wing plate punching mechanism and cutting device 4 is slidably connected to the frame 1, and the web punching mechanism, wing plate punching mechanism and cutting device 4 are respectively provided with a servo drive mechanism 5, and the servo drive mechanism 5 is used to control the web punching mechanism, wing plate punching mechanism and cutting device 4 to move linearly along a first direction. The servo drive mechanism 5 controls the moving direction and distance of the web punching mechanism, wing plate punching mechanism or cutting device according to the conveying speed of the C-shaped steel.

[0054] Specifically, Figure 1 As shown, the frame 1 is provided with a first web punching mechanism 21, a second web punching mechanism 22, a first wing plate punching mechanism 31, a second wing plate punching mechanism 32, a third wing plate punching mechanism 33 and a cutting device 4 in sequence along the first direction of conveying the C-shaped steel, wherein the first web punching mechanism 21, the second web punching mechanism 22, the first wing plate punching mechanism 31, the second wing plate punching mechanism 32, the third wing plate punching mechanism 33 and the cutting device 4 are respectively connected to an independent servo drive mechanism 5 and are controlled by the servo drive mechanism 5 to move linearly along the length direction of the frame 2 to achieve position adjustment along the first direction.

[0055] It should be noted that there is no limit on the number of the above-mentioned web punching mechanisms and wing plate punching mechanisms, which can be two groups, three groups, one group, four groups, five groups, etc., and can be specifically set according to the number and type of processing of different holes on the three vertical surfaces of the C-shaped steel.

[0056] The multiple sets of punching and cutting equipment for the three vertical surfaces of the C-shaped steel in this embodiment are part of the C-shaped steel processing production line and are located after the forming equipment. The steel strip being conveyed is formed by cold bending to form a C-shaped steel with an opening downward, and is further conveyed along the production line to the multiple sets of punching and cutting equipment in this embodiment. The three vertical surfaces of the C-shaped steel are punched in turn by multiple punching mechanisms, avoiding errors caused by material deformation in the process of punching first and then forming, and having high shape and position accuracy. Different punching mechanisms can be selected on each vertical surface according to different hole types and quantities, without the need for adjustment, and the processing efficiency is high.

[0057] In this embodiment, the frame 1 is a steel frame structure, and a motion guide rail 101 extending along a first direction is provided on the top of the frame 1. Figure 2 , Figure 3 As shown, the moving guide rail 101 and the slider 102 are cooperated to form a plurality of slidable mounting base plates 103 on the top of the frame. In this embodiment, the bottoms of all the web punching mechanisms, wing plate punching mechanisms and cutting devices are respectively provided with mounting base plates 103. The bottom of the mounting base plate 103 is slidably connected to the moving guide rail 101 along the first direction, and can be controlled by the servo drive mechanism 5 to move linearly along the moving guide rail, thereby realizing position adjustment along the first direction to achieve high-precision continuous punching processing.

[0058] like Figure 2 , Figure 3 As shown, the servo drive mechanism 5 is composed of a servo motor 501, a coupling 502 and a ball screw pair 503. The output end of the servo motor 501 is connected to the ball screw pair 503 through the coupling 502, thereby driving the second web punching mechanism to move forward or backward a set distance. The forming speed of the front forming unit can be tracked through the feedback signal and the control system to adjust the position accordingly, which can ensure that the punching efficiency is consistent with the forming speed without stopping the machine and improve the hole processing accuracy.

[0059] In this embodiment, in order to better meet the punching requirements of C-shaped steels of different specifications and models, two web punching mechanisms are provided, namely, a first web punching mechanism 21 and a second web punching mechanism 22, each of which is composed of at least one group of web punching units 201. Figure 3 As shown, the first web punching mechanism 21 includes two sets of web punching units 201 arranged in parallel, and the second web punching mechanism 22 includes a set of web punching units 201, combined with Figure 5 and Figure 6 As shown, the structure of the web punching unit is described:

[0060] like Figure 5 , Figure 6As shown, the web punching unit 201 is installed on the mounting base plate 103, and includes a first base 201-1, a first positioning base 201-2, a web punch 201-3, a connecting piece 201-4 and a first hydraulic cylinder 201-5, wherein the first positioning base 201-2 is fixedly installed on the top of the first base 201-1, and is used to position and support the transported C-shaped steel. During processing, the web of the C-shaped steel is placed on the top of the first positioning base 201-2 for positioning. The web punch 201-3 is arranged above the first positioning base 201-2, and the top of the web punch is connected to a first hydraulic cylinder 201-5 for driving, and the first hydraulic cylinder 201-5 is fixedly installed on an upper fixed base 201-6. As shown in the figure, the upper fixed base 201-6 is supported and fixedly installed on the first base 201-1 by a plurality of columns 201-7. The bottom of the telescopic rod of the first hydraulic cylinder 201-5 is connected to the web punch 201-3 through the connecting piece 201-4, driving the web punch to move for processing. In this embodiment, a horizontally arranged first guide plate 201-8 is also installed above the first positioning seat, and a plurality of first guide holes 201-9 corresponding to the web punch are opened on the first guide plate, which play a guiding role when the web punch is pressed down, thereby improving the position accuracy of the punching process. Among them, in other embodiments, other driving components can also be used to replace the first hydraulic cylinder to drive the web punch for punching, such as a motor, a cylinder, etc., and there is no limitation on this. In addition, the shape, specification and quantity of the web punch can be set according to the hole position requirements of the C-shaped steel, and there is no limitation on this in this embodiment.

[0061] like Figure 5 As shown, a stamping limit assembly is also provided on the side of the first hydraulic cylinder 201-5, including a lifting rod 201-10, a limit block 201-11 and a limit seat 201-12, wherein the lifting rod 201-10 is vertically arranged on the side of the upper fixed seat 201-6 and fixedly connected to the connecting member 201-4, and a limit seat 201-12 is fixedly installed on the side of the upper fixed seat (fixed connection is not shown in the attached figure), and the lifting rod 201-10 passes through the limit seat 201-12 and can move relatively. A proximity switch is provided on the top of the limit seat 201-12, and a limit block 201-11 is fixedly provided on the top of the lifting rod. When the first hydraulic cylinder 201-5 drives the web punch 201-3 to press down to punch, the limit block 201-11 is driven to descend through the connecting member 201-4 and the lifting rod 201-10, and when the limit block descends to a distance close to the distance set by the proximity switch, the first hydraulic cylinder 201-5 stops descending, and a punching is completed. In a specific embodiment, the set distance can be set to 1 cm or other values ​​to avoid impact caused by contact between the limit block and the limit seat.

[0062] In this embodiment, Figure 1 and Figure 4As shown, three fender punching mechanisms are provided, namely, the first fender punching mechanism 31, the first fender punching mechanism 32 and the first fender punching mechanism 33. Each fender punching mechanism includes a right fender punching unit 301 and a left fender punching unit 302, which can successively perform punching processing on the two fender surfaces of the C-shaped steel. In the fender punching mechanism, the right fender punching unit and the left fender punching unit can be driven and controlled by a group of servo drive mechanisms, or can be controlled by two groups of servo drive mechanisms respectively. In this embodiment, two groups of servo drive mechanisms are respectively provided in the first fender punching mechanism 31 and the first fender punching mechanism 32 for respectively controlling the right fender punching unit and the left fender punching unit. In the third fender punching mechanism 33, the right fender punching unit and the left fender punching unit are provided on the same bottom plate and base, and are provided by a group of servo drive mechanisms, which can save the layout space of the equipment.

[0063] Among them, Figure 4 and Figure 7 As shown, the right wing plate punching unit has the same structure as the left wing plate punching unit, but the arrangement directions are opposite. Taking the right wing plate punching unit as an example, its structure is described as follows:

[0064] like Figure 7 and Figure 8 As shown, the right wing plate punching unit 301 includes a second base 301-1, a support base 301-2, a second positioning base 301-3, a wing plate punch 301-4 and a second hydraulic cylinder 301-5. The bottom of the second base 301-1 is slidably connected to the mounting base plate 103. The support base 301-2 is fixedly mounted on the second base 301-1, and the second positioning base 301-3 is mounted on the side of the support base close to the processing station. Among them, the second hydraulic cylinder 301-5 is horizontally arranged and passes through the support base 301-2 and the second positioning base 301-3 in sequence. The second hydraulic cylinder 301-5 is fixedly connected to the second positioning base 301-3, and the end of the telescopic rod of the second hydraulic cylinder 301-5 is fixedly connected to the wing plate punch 301-4, which is used to punch the right wing plate of the C-shaped steel. In this embodiment, a second guide plate 301-6 is provided at the end of the wing plate punch, and the second guide plate 301-6 is fixedly mounted on the second positioning seat 301-3. A plurality of second guide holes 301-7 corresponding to the wing plate punch are opened on the second guide plate for the wing plate punch to pass through, which guides the punching process of the wing plate punch and improves the position accuracy of the wing plate punching.

[0065] Among them, in other embodiments, other driving components may be used to replace the second hydraulic cylinder to drive the wing plate punch, such as a motor, a cylinder, etc., and there is no limitation on this. Also, the shape, specification and quantity of the wing plate punch may be set according to the hole position requirements of the C-shaped steel, and there is no limitation on this in this embodiment.

[0066] like Figure 7 and Figure 8As shown, a second screw mechanism is vertically installed on the top of the support seat 301-2, and the second screw mechanism is connected to the second positioning seat 301-3, which can drive the second positioning seat to move up and down relative to the support seat. Among them, the second screw mechanism includes a second wire seat 301-8 fixed to the support seat and a second screw 301-9 connected to the second wire seat, the bottom of the second screw 301-9 is fixedly connected to the second positioning seat 301-3, and a second hand wheel 301-10 is installed on the top of the second screw for easy control and operation. The second positioning seat can be controlled by the second screw mechanism to drive the second hydraulic cylinder and the wing punch to rise and fall, and adjust the height position of the wing punch to meet the punching requirements of C-shaped steels of different specifications, and the hand wheel is easy to operate.

[0067] In addition, in this embodiment, the conveying of C-shaped steel runs through the punching process of the entire equipment. Each web punching mechanism and wing plate punching mechanism is provided with a conveying guide roller assembly 6 for guiding and conveying the C-shaped steel. Figure 6-Figure 8 As shown, the conveying guide roller assembly 6 includes a first guide roller 601 and a second guide roller 602 whose axis direction is perpendicular to the conveying direction of the C-shaped steel. The second guide roller 602 is fixedly mounted on the first base or the second base. The height of the first guide roller 601 is lower than that of the second guide roller 602 and is fixedly connected to the second guide roller 602. The C-shaped steel passes between the first guide roller and the second guide roller during conveyance. Taking the second web punching mechanism as an example, Figure 6 As shown, the first base 201-1 is provided with conveying guide roller assemblies 6 on both sides along the first direction, and the conveying guide roller assemblies 6 are installed at the loading end and the unloading end of the second web punching mechanism 22, and include a first guide roller 601 and a second guide roller 602 whose axes are arranged along the second direction, wherein the second guide roller 602 is fixedly installed on the first base 201-1, and the height of the first guide roller is lower than the second guide roller and is fixedly connected to the second guide roller. When the C-shaped steel is conveyed, it passes between the first guide roller and the second guide roller, and the first guide roller and the second guide roller support, guide and limit the C-shaped steel to ensure smooth conveying and processing of the C-shaped steel.

[0068] Furthermore, considering that the punching mechanism needs to be adjusted when processing C-shaped steels of different specifications and models, in this embodiment, a sliding pair 104 along the second direction is provided between the base of each punching mechanism and the mounting base plate, and the sliding pair 104 is installed between the mounting base plate and the first base or the second base, so that each punching mechanism or cutting device can be adjusted in a direction perpendicular to the C-shaped steel conveying direction to meet the punching processing requirements of C-shaped steels of different specifications. In this embodiment, taking the third wing plate punching mechanism as an example, Figure 7As shown, the sliding pair 104 is installed between the mounting base plate 103 and the second base 301-1, and is implemented in the form of a sliding groove and a limit block. The sliding groove is arranged along the second direction, and can be arranged on the base of each punching mechanism in the form of a long waist hole to achieve relative movement of the two. At the same time, it can be locked at a certain position to form a relative fixation, ensuring the stability of the punching mechanism during processing or movement. Of course, in other embodiments, the sliding pair can also be implemented in other conventional mechanical forms.

[0069] At the same time, in order to realize the movement in the second direction, the present embodiment further provides a power mechanism on each punching mechanism. In the present embodiment, the power mechanism adopts a first screw mechanism. Taking the second web punching mechanism as an example, Figure 6 As shown, a first screw mechanism 7 connected to the mounting base plate is provided on one side of the first base 201-1, and the first screw mechanism 7 includes a first screw seat 701 and a first screw 702, the first screw seat 702 is fixedly mounted on the side of the mounting base plate 103, the first screw 702 is threadedly connected to the first screw seat 701, and a first hand wheel 703 is installed at the end of the first screw 702 for easy operation. The first base 201-1 can be driven by the first screw mechanism 7 to move linearly along the second direction perpendicular to the conveying of the C-shaped steel, so as to adjust the position of the web punch according to the different position requirements of the punching holes on the C-shaped steel.

[0070] In this embodiment, the cutting device 4 is used to cut the C-shaped steel after punching to obtain the required processed C-shaped steel. Fig. 9 As shown, the cutting device is driven by an offset cutting hydraulic cylinder and utilizes the offset cutting of the movable knife and the fixed knife to accurately complete the cutting of the C-shaped steel to a fixed length without discarding material. The specific working principle is consistent with the cutting device disclosed in the existing patent CN220029347U and will not be repeated here.

[0071] The C-shaped steel three-face multi-group punching and cutting equipment of this embodiment can continuously punch the C-shaped steel after cold bending and forming, and then cut it after completing the punching of the three faces. On the one hand, the C-shaped steel is directly punched, and the shape and position accuracy are high, avoiding the error caused by material deformation in the process of punching first and then forming; on the other hand, the web punching mechanism and wing plate punching mechanism of this application complete the punching of the three faces in different stations, and each punching station is individually controlled by a servo drive mechanism, so as to achieve continuous and uninterrupted punching without stopping or buffering, and the punching speed is fast, and the hole position accuracy is high. The punching speed of the whole line can reach 42m / min, which greatly optimizes the processing efficiency compared with the traditional C-shaped steel punching and forming production line. In addition, this embodiment does not need to arrange a pit or elevated structure as a buffer, saving factory space and reducing construction costs.

[0072] Embodiment 2

[0073] In another typical embodiment of the present invention, a working method of a C-shaped steel three-sided multi-group punching and cutting device is provided. The C-shaped steel three-sided multi-group punching and cutting device based on the first embodiment includes:

[0074] For the C-shaped steel that is continuously transferred after being formed in the forming station, the web punching mechanism, the wing plate punching mechanism and the cutting device are processed in sequence, and the finished C-shaped steel is obtained after cutting by the cutting device;

[0075] The web punching mechanism, the wing punching mechanism and the cutting device operate on C-shaped steels at different positions simultaneously; that is, when the cutting device is cutting, at least one wing punching mechanism punches holes on the C-shaped steel at the next position at the same time, and at least one web punching mechanism punches holes on the web of the C-shaped steel at another position at the same time;

[0076] Among them, according to the real-time speed of the C-shaped steel conveying, the servo drive mechanism can adjust the position of the web punching mechanism, the wing plate punching mechanism or the cutting device on the frame to ensure that the processing position meets the processing requirements.

[0077] Specifically, this embodiment is used for the processing technology of C-shaped steel in which the steel strip is first formed and then punched. The steel strip is continuously transmitted on the production line and cold-bent at the forming station to form a C-shaped steel. The steel strip is then continuously transmitted to multiple sets of punching and cutting equipment on the three sides of the C-shaped steel for punching and cutting. After the multi-sided punching is completed, the steel strip is cut by the cutting equipment to form a C-shaped steel that meets the processing requirements.

[0078] In this embodiment, the C-shaped steel is successively punched through the web plate, the right wing plate and the left wing plate during transmission until all holes are processed, and then the steel is transmitted to the cutting device for cutting. Among them, since the web punching mechanism, the wing plate punching mechanism and the cutting device can be controlled independently, the left wing plate punching unit and the right wing plate punching unit of the wing plate punching mechanism also act independently. In the actual production process, one or more web punching mechanisms, the right wing plate punching unit, the left wing plate punching unit and the cutting device can simultaneously perform punching processing on different positions of the C-shaped steel being transmitted, that is, the web punching, the right wing plate punching, the left wing plate punching and the cutting of the C-shaped steel can be performed simultaneously as needed, but only the operations are performed on different C-shaped steels in sequence. This can greatly improve the punching efficiency on the production line, so that the punching processing speed can match the C-shaped steel forming speed and the conveying speed of the C-shaped steel. The C-shaped steel processing production line can act continuously, and the entire line does not need to be shut down or set up buffer devices such as pits and elevated structures. While achieving efficient production, it reduces the production line footprint and reduces the construction cost of the factory building.

[0079] In addition, during the production process, each punching mechanism, punching unit or cutting device can be driven by an independent servo drive mechanism. The servo motor in each servo drive mechanism is connected to the ball screw pair through a coupling, and the corresponding punching mechanism can be controlled to track the punching according to the speed of the whole line. Specifically, the servo motor is connected to the control system, and the forming unit of the forming station is provided with an encoder to sense the forming speed and feed the speed back to the control system. The control system can control the servo motor according to the real-time forming speed or the transmission speed of the C-shaped steel, and then drive the corresponding punching mechanism, punching unit or cutting device to move forward and backward along the first direction on the frame to make fine adjustments to the device, which can better match the real-time speed of the C-shaped steel and ensure the positioning accuracy of each station, thereby effectively improving the hole processing accuracy of the C-shaped steel and the processing efficiency of the whole line.

[0080] Specifically, at the punching processing station, the web punch and the wing plate punch are both driven by a hydraulic cylinder. Considering that the number of punches required for web punching or wing plate punching at one time is too large, or the gap between multiple holes to be processed is too large or the hole diameter is large, the distance between the first punch and the last punch at a punching processing station is too large, resulting in insufficient or uneven pressure when the hydraulic cylinder drives multiple punches for punching processing at one time, which can easily lead to poor punching quality and poor precision, and cannot meet the processing requirements.

[0081] Therefore, in Embodiment 1, a plurality of web punching mechanisms and a plurality of wing plate punching mechanisms are provided. When the straight-line distance between the first and last ends of the holes to be processed on a certain surface of the C-shaped steel is too large due to factors such as the hole diameter, hole spacing, and number of holes, the punching processing on this surface of the C-shaped steel can be completed by two or more front and rear punching mechanisms.

[0082] That is, when the web hole of the C-shaped steel to be processed is single or the distance between the first and last web holes is less than the set value, one web punching mechanism will work to complete the web punching process; when the distance between the first and last web holes is greater than the set value, two or more web punching mechanisms will work to complete the web punching process;

[0083] When the C-shaped steel wing plate hole to be processed is a single one or the distance between the first and last wing plate holes is less than the set value, one wing plate punching mechanism is used to complete the wing plate punching process; when the distance between the first and last wing plate holes is greater than the set value, two or more wing plate punching mechanisms are used to complete the wing plate punching process. In this embodiment, the set value is set to 50 cm. When the distance exceeds 50 cm, the punching of the surface is completed at two or three stations through parameter setting to ensure the accuracy and quality of the punching process.

[0084] In this embodiment, the punching and cutting equipment can be operated continuously without stopping. The punching is also shifted forward at the moment of punching and matched with the speed of the whole line, and the punching speed and efficiency are greatly improved. In actual production, compared with the traditional processing production line that uses punching first and then forming, the efficiency of the traditional production line is slow at the fastest 27m / min, and each time the specification model is changed, the equipment needs to be manually re-adjusted and fixed in position. This embodiment can realize tracking punching, the equipment does not stop, the production speed of the whole line can reach 42m / min, and the shape accuracy and position accuracy of the hole position are higher. When producing C-shaped steels of different specifications and models, it is only necessary to fine-tune the punching mechanism and set parameters, which has achieved significant optimization in production efficiency, operation complexity and production accuracy.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A C-shaped steel three-sided multi-group punching and cutting equipment, characterized in that: It comprises a frame, on which at least one web punching mechanism, at least one wing plate punching mechanism and a cutting device are sequentially arranged, and the web punching mechanism and the wing plate punching mechanism can perform punching processing at the same time; The web punching mechanism, wing plate punching mechanism and cutting device are slidably connected to the frame at the bottom, and the web punching mechanism, wing plate punching mechanism and cutting device are respectively provided with servo drive mechanisms, and the servo drive mechanisms are used to control the web punching mechanism, wing plate punching mechanism and cutting device to move linearly along the first direction.

2. A C-shaped steel three-sided multi-group punching and cutting equipment as claimed in claim 1, characterized in that: Each web punching mechanism is composed of at least one group of web punching units, and the web punching unit includes a first base, a first positioning seat is installed on the first base, a web punch is arranged above the first positioning seat, and the web punch is driven by a first stamping drive member on the top; preferably, a first guide plate is provided above the first positioning seat, and a first guide hole corresponding to the web punch is opened on the first guide plate for the web punch to pass through.

3. A C-shaped steel three-sided multi-group punching and cutting equipment as claimed in claim 2, characterized in that: The web punch is fixedly connected to the output end of the first stamping drive member through a connecting piece, and the first stamping drive member is fixedly connected to the first base; the connecting piece is fixedly connected to a vertically arranged lifting rod, and the lifting rod is arranged on the side of the first stamping drive member and a limit block is fixedly provided on the top; a limit seat slidably connected to the lifting rod is also fixedly provided on the side of the body of the first stamping drive member, and a proximity switch is provided on the top of the limit seat.

4. The C-shaped steel three-sided multi-group punching and cutting equipment as claimed in claim 1, characterized in that: Each wing plate punching mechanism includes a right wing plate punching unit and a left wing plate punching unit, and the right wing plate punching unit and the left wing plate punching unit are driven and controlled by a group of servo drive mechanisms, or the right wing plate punching unit and the left wing plate punching unit are respectively controlled by two groups of servo drive mechanisms.

5. A C-shaped steel three-sided multi-group punching and cutting device as claimed in claim 4, characterized in that: The right wing plate punching unit and the left wing plate punching unit have the same structure; the right wing plate punching unit includes a second base, a second positioning seat is fixedly provided on the second base, a horizontally arranged stamping drive and a wing plate punch are fixedly installed on the second positioning seat, a second guide plate is provided at the end of the wing plate punch, the second guide plate is fixedly connected to the second positioning seat, and a second guide hole is opened on the second guide plate for the wing plate punch to pass through.

6. A C-shaped steel three-sided multi-group punching and cutting device as claimed in claim 5, characterized in that: A support seat arranged on the back of the second positioning seat is fixedly mounted on the second base, and a vertically arranged second screw mechanism is installed on the top of the support seat, which is used to drive the second positioning seat to rise and fall relative to the supporting seat; preferably, the second screw mechanism includes a second wire seat fixed to the support seat and a second screw rod cooperating with the second wire seat, the bottom of the second screw rod is fixedly connected to the second positioning seat, and a second hand wheel is installed on the top of the screw rod.

7. The C-shaped steel three-sided multi-group punching and cutting equipment as claimed in claim 1, characterized in that: Each web punching mechanism and wing plate punching mechanism is provided with a conveying guide roller assembly for conveying C-shaped steel; the conveying guide roller assembly comprises a first guide roller and a second guide roller whose axial direction is perpendicular to the conveying direction of the C-shaped steel, the second guide roller is fixedly mounted on the first base or the second base, the height of the first guide roller is lower than the second guide roller and is fixedly connected to the second guide roller, and the C-shaped steel passes between the first guide roller and the second guide roller during conveyance.

8. A C-shaped steel three-sided multi-group punching and cutting equipment as claimed in claim 2 or 5, characterized in that: The bottoms of the web punching mechanism, the wing plate punching mechanism and the cutting device are respectively provided with mounting base plates, and the bottoms of the mounting base plates are slidably connected to the frame; Preferably, the first base or the second base is respectively installed above the mounting base plate, and the first base or the second base is slidably connected to the mounting base plate; the first base or the second base is driven by a power mechanism to move linearly along the second direction, and the position of the web punch is adjusted according to different position requirements of punching holes on the C-shaped steel; Preferably, the power mechanism adopts a first screw mechanism, which includes a first screw seat fixedly connected to the mounting base plate and a first screw threadedly connected to the first screw seat, one end of the first screw is fixedly connected to the first base, and the other end is equipped with a first hand wheel.

9. A working method of a C-shaped steel three-sided multi-group punching and cutting device, based on a C-shaped steel three-sided multi-group punching and cutting device as claimed in any one of claims 1 to 8, comprising: For the C-shaped steel that is continuously transferred after being formed in the forming station, the web punching mechanism, the wing plate punching mechanism and the cutting device are processed in sequence, and the finished C-shaped steel is obtained after cutting by the cutting device; The C-shaped steel that is continuously transferred after being formed in the forming station is processed in the web punching mechanism, the wing plate punching mechanism and the cutting device in sequence, and the processed C-shaped steel is obtained after being cut by the cutting device; Among them, the web punching mechanism, wing plate punching mechanism and cutting device operate simultaneously on C-shaped steels at different positions; Among them, according to the real-time speed of C-shaped steel conveying, the servo drive mechanism can adjust the position of the web punching mechanism, the wing plate punching mechanism or the cutting device on the frame to ensure that the processing position of each station meets the C-shaped steel processing requirements.

10. The working method of the C-shaped steel three-sided multi-group punching and cutting equipment as claimed in claim 9, characterized in that: When the web hole of the C-shaped steel to be processed is single or the distance between the first and last web holes is less than the set value, one web punching mechanism is used to complete the web punching process; when the distance between the first and last web holes is greater than the set distance, two or more web punching mechanisms are used to complete the web punching process; When the wing plate hole of the C-shaped steel to be processed is single or the distance between the first and last wing plate holes is less than the set value, one wing plate punching mechanism is used to complete the wing plate punching process; when the distance between the first and last wing plate holes is greater than the set distance, two or more wing plate punching mechanisms are used to complete the wing plate punching process.

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