Punching machine for large angle steel production

Abstract

The invention belongs to the field of angle steel punching machines, and discloses a large angle steel production punching machine which comprises a lower supporting frame, a first supporting piece, a second supporting piece and a hydraulic assembly. The first supporting piece is perpendicular to the side wall of the lower supporting frame. When the punching machine is switched to apply pressure to the other side of the angle steel, damping liquid of the hydraulic assembly on the original non-stress side flows back, the locking state of the self-locking piece is relieved, the abutting force of the second supporting piece is weakened, and when the angle steel is pressed to move horizontally, the triggering assembly drives the hydraulic assembly and synchronously activates the second supporting piece on the opposite side to abut against the side wall of the angle steel to restrain outward movement. Meanwhile, the self-locking piece of the first supporting piece on the same side as the stress side rotates to form a rigid stop, the angle steel moving path is limited to be parallel translation perpendicular to the stress direction, interlayer dislocation caused by downward sliding of the upper-layer angle steel is effectively restrained, and sliding of the upper-layer angle steel is limited, so that when a flexible layer in the middle of the double-layer angle steel deforms, the deformation of the flexible layer is avoided; and the coaxiality of the upper-layer angle steel punching hole and the lower-layer angle steel punching hole can still be kept.

Description

Technical Field

[0001] This disclosure pertains to the field of angle steel punching machines, specifically relating to a punching machine for large angle steel production. Background Technology

[0002] In industrial production, double-layer angle steel is widely used due to its advantages of both structural strength and lightweight. Some double-layer angle steels also have a flexible sandwich layer made of foam or rubber on the inner side to meet specific cushioning or shock absorption needs. However, when punching these double-layer sandwich angle steels, the extrusion force applied by the punching machine causes deformation of the flexible sandwich layer, which can easily lead to displacement of the upper angle steel relative to the lower angle steel. This results in problems such as relative tilting and coaxiality deviation of the punched holes in the upper and lower angle steels, seriously affecting product quality.

[0003] In existing technologies, angle steel is often fixed using a contour-following support device adapted to the folding angle of the angle steel, achieving positioning by fitting the inner wall of the angle steel against the support device. However, such positioning structures typically only effectively fix the lower layer of angle steel. For the upper layer of angle steel, due to the deformation characteristics of the flexible sandwich layer, its position may still shift during punching. If a simple guiding structure is used to limit the upper layer of angle steel, it is difficult to ensure that the stressed side of the upper layer of angle steel remains parallel to the corresponding side of the lower layer of angle steel when it is subjected to pressure during punching, making it difficult to effectively solve the problem of coaxiality difference between the two layers of angle steel during punching. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this disclosure is to provide a punching machine for large angle steel production, which solves the problems in existing technologies where the flexible sandwich layer of double-layer sandwich angle steel is easily deformed by the punching extrusion pressure, causing the upper angle steel to shift relative to the lower angle steel, and the existing positioning structure is difficult to ensure that the stress-bearing side of the upper angle steel is parallel to the corresponding side of the lower angle steel, resulting in the upper and lower layers being relatively tilted and having poor coaxiality during punching.

[0005] The objective of this disclosure can be achieved through the following technical solutions:

[0006] A punching machine for producing large angle steel includes: a lower support frame, a first support member, a second support member, and a hydraulic assembly;

[0007] Multiple side walls of the lower support frame are vertically equipped with punching machines, and a pressing frame is fixed to the end of the punching machine. The pressing frame is slidably arranged with the punching machine, and the outer side of the pressing frame is fixedly connected to the second support member.

[0008] The first support member is perpendicular to the side wall of the lower support frame, and the first support member is slidably disposed along the side wall of the lower support frame;

[0009] The second support frame is arranged parallel to the upper end face of the lower support frame, and multiple inner sides of the lower support frame are provided with trigger components that penetrate the lower support frame;

[0010] The triggering component on the left is connected to the first and second support members on the right via a hydraulic assembly;

[0011] When the triggering component is pressed by the translation of the angle steel, it drives the second support member on the opposite side to move towards the non-stressed side wall of the angle steel and abut against it through the hydraulic component, and at the same time drives the self-locking member of the first support member on the opposite side to rotate to suppress the angle steel from sliding down.

[0012] When the punching machine switches to apply pressure to the other side of the angle steel, the damping fluid of the hydraulic component on the original non-force-bearing side flows back, releasing the locking state of the self-locking component and reducing the pressure of the second support component.

[0013] In some disclosures, the first support member includes a push plate, a telescopic rod, a support spring, and a self-locking component. The push plate is slidably disposed on the upper end surface of the lower support frame, and a telescopic rod is fixed on the side of the push plate away from the angle steel. The other end of the telescopic rod is fixed to the inner wall of the lower end of the lower support frame, and a support spring is arranged around the outer side of the telescopic rod. Self-locking components adapted to the push plate are provided on both sides of the lower support frame.

[0014] In some disclosures, a support plate is fixed to the upper end face of the lower support frame, and a sliding groove is provided on the inner side of the support plate, with both ends of the push plate 21 passing through the sliding groove.

[0015] In some disclosures, the support plate has a rectangular groove on the side away from the angle steel, and multiple rotating shafts are fixed at equal intervals on the inner side of the rectangular groove. When the self-locking member rotates to be perpendicular to the end face of the lower support frame, the self-locking member protrudes out of the rectangular groove.

[0016] In some disclosures, the self-locking component includes a rotating plate, a connecting rod, a first piston rod, and a support cavity. The rotating plate has multiple through holes on its inner side, and the rotating plate is rotatably connected to the rotating shaft 104 through the through holes. The ends of the multiple rotating plates away from the rotating shaft 104 are rotatably connected to each other through the connecting rod. The first piston rod is rotatably connected to the side wall of the rotating plate, and the end of the first piston rod away from the push plate is sealed and slidably fitted with the support cavity. The end of the support cavity is connected to the hydraulic assembly.

[0017] In some disclosures, the second support member includes a second piston rod and a support cylinder. Multiple support plates are symmetrically arranged on the outer side of the lower support frame, and the positions of the support plates are parallel to the lower support frame. A support cylinder is provided through the inner side of the support plate, and a second piston rod is slidably connected to the inner side of the support cylinder. The end of the second piston rod is fixedly connected to the pressing frame.

[0018] In some disclosures, the hydraulic assembly includes a hydraulic channel, a first hose, and a second hose. Multiple hydraulic channels are provided directly below the lower support frame, and one of the hydraulic channels is connected to a support cylinder perpendicular to the left side of the angle steel via multiple first hoses. At the same time, the hydraulic channel is sealed to the support cavity on the right side of the angle steel via multiple second hoses.

[0019] In some disclosures, the triggering assembly includes a guide tube, a trigger plate, and a guide rod, with a guide tube fixed to the outside of the hydraulic channel and slidingly disposed on the inside of the guide tube. The guide rod passes through the lower support frame, and the guide tube is disposed perpendicular to the lower end face of the lower support frame.

[0020] In some disclosures, a recessed groove is provided at the position corresponding to the trigger assembly of the lower support frame, and a guide hole penetrating the lower support frame is provided on the inner side of the recessed groove. A guide rod is provided through the guide hole, and the thickness of the recessed groove is greater than the thickness of the trigger plate.

[0021] In some disclosures, the pressing frame includes a first horizontal plate, a second horizontal plate, and a second telescopic rod. The lower end of the punching machine is fixed with the first horizontal plate, and the lower end of the first horizontal plate is fixed with a plurality of second telescopic rods. The end of the second telescopic rod is fixed with the second horizontal plate.

[0022] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0023] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them;

[0024] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0025] Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields.

[0026] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0027] The beneficial effects of this disclosure are:

[0028] 1. When the angle steel is compressed and moves horizontally, the trigger component drives the hydraulic component, which simultaneously activates the second support member on the opposite side to abut against the side wall of the angle steel and inhibit outward movement. At the same time, the self-locking part of the first support member on the same side as the force side rotates to form a rigid stop, restricting the movement path of the angle steel to a parallel translation perpendicular to the direction of force. This effectively suppresses the interlayer misalignment caused by the sliding of the upper angle steel. Furthermore, by restricting the sliding of the upper angle steel, it is beneficial to maintain the coaxiality of the punched holes of the upper angle steel and the lower angle steel when the flexible layer in the middle of the double-layer angle steel deforms.

[0029] 2. When punching holes on one side of the angle steel, stress is released through an asymmetric constraint strategy. The stressed side is rigidly stopped by the first support member of the angle steel, which applies a reaction force perpendicular to the push plate. Meanwhile, the second support member on the unstressed side applies a reaction force perpendicular to the unstressed side wall of the angle steel. This asymmetric force helps to symmetrically adjust the central plane of the stressed angle steel.

[0030] 3. When changing sides during punching, the hydraulic components on the original constraint side are automatically depressurized, the self-locking parts are passively unlocked, and the second support parts are retracted. This eliminates the need for manual machine adjustment, enabling continuous multi-faceted processing and saving workers time from repeatedly adjusting the fixtures. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this disclosure;

[0033] Figure 2 This is a schematic diagram of the overall structure of a hidden set of punching machines according to an embodiment of this disclosure;

[0034] Figure 3 This is an embodiment of the present disclosure. Figure 2 A schematic diagram of the overall structure from another perspective;

[0035] Figure 4 This is a schematic diagram of the internal structure of the triggering component according to an embodiment of the present disclosure;

[0036] Figure 5 This is an embodiment of the present disclosure. Figure 4 A schematic diagram of the isometric cross-sectional structure;

[0037] Figure 6 This is a schematic diagram of the overall structure of the self-locking component according to an embodiment of the present disclosure;

[0038] Figure 7 This is a schematic diagram of the overall structure of the pressing frame according to an embodiment of the present disclosure.

[0039] In the diagram: 1. Lower support frame; 101. Support plate; 102. Slide groove; 103. Rectangular groove; 104. Rotating shaft; 105. Sink; 106. Guide hole;

[0040] 2. First support component; 21. Push plate; 22. Telescopic rod; 23. Support spring; 24. Self-locking component;

[0041] 241. Rotating plate; 242. Connecting rod; 243. First piston rod; 244. Support cavity;

[0042] 2411, Through hole;

[0043] 3. Second support member; 31. Support cylinder; 32. Second piston rod;

[0044] 4. Hydraulic components; 41. Hydraulic channel; 42. First hose; 43. Second hose;

[0045] 5. Punching machine; 51. Pressing frame; 511. First horizontal plate; 512. Second horizontal plate; 513. Second telescopic rod;

[0046] 6. Trigger component; 61. Guide tube; 62. Trigger plate; 63. Guide rod. Detailed Implementation

[0047] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0048] Please refer to Figures 1 to 7 A punching machine for producing large angle steel includes: a lower support frame 1, a first support member 2, a second support member 3, and a hydraulic assembly 4;

[0049] A punching machine 5 is vertically installed on multiple side walls of the lower support frame 1, and a pressing frame 51 is fixed to the end of the punching machine 5. The pressing frame 51 is slidably installed with the punching machine 5, and the outer side of the pressing frame 51 is fixedly connected to the second support member 3.

[0050] The first support member 2 is perpendicular to the side wall of the lower support frame 1, and the first support member 2 is slidably disposed along the side wall of the lower support frame 1;

[0051] The second support frame is arranged parallel to the upper end face of the lower support frame 1, and trigger components 6 that penetrate the lower support frame 1 are provided on multiple inner sides of the lower support frame 1.

[0052] The trigger component 6 on the left is connected to the first support 2 and the second support 3 on the right via the hydraulic component 4;

[0053] When the trigger component 6 is pressed by the translation of the angle steel, the hydraulic component 4 drives the second support 3 on the opposite side to move towards the non-force-bearing side wall of the angle steel and abut against it, while driving the self-locking part 24 of the first support 2 on the opposite side to rotate to suppress the angle steel from sliding down.

[0054] When the punching machine 5 switches to apply pressure to the other side of the angle steel, the damping fluid of the hydraulic component 4 on the original non-force-bearing side flows back, releasing the locking state of the self-locking component 24 and reducing the pressure of the second support component 3.

[0055] The angle steel has a double-layer sandwich structure, consisting of two layers of rigid angle steel, with a buffer layer between the two layers of angle steel. The buffer layer is made of foam or rubber.

[0056] The angle steel is placed directly above the lower support frame 1, and the two mutually perpendicular inner walls of the middle angle steel are both in contact with the outer wall of the trigger component 6 to fix the angle steel.

[0057] A triggering component 6 is provided between the inner wall of the angle steel and the lower support frame 1. When punching, the punching machine 5 moves towards the side closer to the angle steel, forcing the angle steel to move towards the side closer to the lower support frame 1. Since the angle steel is under unilateral force, its movement path is parallel movement on the side under pressure, while the other side wall of the angle steel moves coplanarly. During the translation process, the angle steel presses the triggering component 6 on that side to push inward, thereby triggering the second support member 3 at the other end of the hydraulic component 4 to move towards the side closer to the angle steel. When the second support member 3 is fully extended, its outer wall fits and abuts against the side wall of the angle steel. The first support member 2 connected to the hydraulic component 4 pushes the self-locking member 24 on the first support member 2 to rotate and triggers the self-locking member 24, so that the first support member 2 at this time applies a force to the angle steel to prevent it from sliding downward. At the same time, the second support member 3 connected to the hydraulic component 4 also fits against the non-forced side wall of the angle steel and prevents the angle steel from moving towards the side away from the first support member 2. The stability of the angle steel is improved by the two sets of support members.

[0058] When punching, the first support member 2 and the second support member 3 connected to the hydraulic assembly 4 simultaneously apply a fixed pressure to the angle steel from the outside of the angle steel. At this time, the inner wall of the inner angle steel is rigidly supported by the outer wall of the lower support frame 1, which can further improve the stability of the angle steel during the cutting process.

[0059] On the other side, the trigger component 6 is symmetrically arranged with the first support 2 and the second support 3, so that when the other side of the angle steel is punched, the angle steel on the non-stressed side wall is separated from the punching machine 5. At this time, the damping fluid in the hydraulic component 4 in the non-stressed state flows back, the self-locking state of the first support 2 is released, and the pressure of the second support 3 on the non-stressed side wall of the angle steel is greatly reduced, so as to provide flexible movement space for the limited movement of the angle steel.

[0060] Furthermore, when extruding the angle steel with a double-layer sandwich structure, the lower angle steel is tightly fitted with the lower support frame 1, while the upper angle steel, when deformed by the flexible sandwich layer, is restricted to move parallel to the central axis of the punching machine 5. The trigger assembly 6, through the hydraulic assembly 4, drives the second support member 3 on the opposite non-pressurized side to extend and contact the non-stressed side wall of the angle steel. At the same time, it drives the self-locking member 24 of the first support member 2 on that side to act, so that it applies resistance to the angle steel to prevent it from moving downward. Combined with the support of the inner wall of the lower support frame 1, a multi-point constraint state may be formed, which helps to reduce the tendency of the angle steel to bend, twist, or slip due to punching pressure, thereby potentially improving punching accuracy and hole wall quality.

[0061] At the moment of punching, the non-stressed side of the angle steel is automatically reinforced with enhanced support and constraint (the second support 3 abuts and the first support 2 self-locks), which helps to improve the stability of the angle steel at the punching point.

[0062] When the non-stressed side is not in operation or when the working condition is changed, the constraint state is automatically weakened or released, providing space for the necessary adjustment of the angle steel.

[0063] The first support member 2 includes a push plate 21, a telescopic rod 22, a support spring 23, and a self-locking member 24. The push plate 21 is slidably arranged on the upper end surface of the lower support frame 1. The telescopic rod 22 is fixed on the side of the push plate 21 away from the angle steel. The other end of the telescopic rod 22 is fixed to the lower inner wall of the lower support frame 1. The support spring 23 is arranged around the outside of the telescopic rod 22. The self-locking members 24 adapted to the push plate 21 are arranged on both sides of the lower support frame 1.

[0064] The first support member 2 is arranged in two sets about the vertical center axis of the lower support frame 1;

[0065] The telescopic rod 22 includes a telescopic sleeve that can slide against each other. The two ends of the telescopic sleeve are fixedly connected to the push plate 21 and the lower support frame 1, respectively. The push plate 21 can slide parallel to the central axis of the telescopic rod 22 through the telescopic rod 22. The two ends of the support spring 23 on the outside of the telescopic rod 22 abut against the push plate 21 and the support frame, respectively, and push the support plate 101 to slide closer to the angle steel by its own elastic deformation force. After the angle steel is placed on the lower support frame 1, the side wall of the angle steel away from the vertical angle is in contact with the outer wall of the push plate 21 on the two first support members 2. The support spring 23 and the telescopic rod 22 can compensate for the different distances between the angle steel of different widths and the push plate 21, thereby improving the flexibility of the device.

[0066] This also reduces the need for frequent replacement of specialized clamps or adjustment of support positions;

[0067] The push plate 21 of the first support member 2 provides a flexible pre-tightening force in the initial state to initially fix the position of the angle steel. The first support member 2 works in conjunction with the hydraulic component 4 triggering and self-locking system to achieve a smooth transition from flexible pre-positioning to rigid locking, thereby jointly improving the overall stability of the angle steel during the punching process.

[0068] The upper end face of the lower support frame 1 is fixed with a support plate 101, and a sliding groove 102 is provided on the inner side of the support plate 101. Both ends of the push plate 21 are provided through the sliding groove 102.

[0069] The sliding groove 102 and the support plate 101 restrict and support the movement path of the push plate 21, which helps to improve the stability of the movement of the push plate 21.

[0070] The support plate 101 has a rectangular groove 103 on the side away from the angle steel, and multiple rotating shafts 104 are fixed at equal intervals on the inner side of the rectangular groove 103. When the self-locking member 24 rotates to be perpendicular to the end face of the lower support frame 1, the self-locking member 24 protrudes out of the rectangular groove 103.

[0071] The self-locking member 24 is provided with a rotation fulcrum by the rotating shaft 104. When the self-locking member 24 is driven by an external force, it rotates around the central axis of the rotating shaft 104 until it protrudes from the rectangular groove 103. At this time, the upper end face of the self-locking member 24 abuts against the side wall of the push plate 21 and prevents the push plate 21 from sliding in the opposite direction, thereby locking the position of the push plate 21. It also cooperates with the push plate 21 to restrict the push plate 21 from sliding downward under the pressure of the angle steel, thereby limiting the position of the upper angle steel. This helps to reduce the offset distance between the upper and lower angle steels and improve the coaxiality between the central axis of the upper and lower angle steels. The position of the rotating shaft 104 is lower than the upper end face of the lower support frame 1. Therefore, when the rotating plate rotates around the rotating shaft 104, the relative height between the end of the rotating plate and the upper end face of the lower support frame 1 changes.

[0072] When the self-locking member 24 is in a non-self-locking state, the push plate 21 presses the self-locking member 24 to tilt until the end of the self-locking member 24 is lower than the upper end face of the lower support frame 1. At this time, the self-locking member 24 retracts to the inside of the rectangular groove 103, thereby releasing the self-locking state of the push plate 21.

[0073] The self-locking component 24 is located on the side away from the support plate 101, while the angle steel is located between the two support plates 101. The support plates 101 separate the angle steel from the self-locking component 24 to prevent the angle steel from interfering with the self-locking component 24 and causing the self-locking component 24 to be unable to extend normally.

[0074] The self-locking component 24 includes a rotating plate 241, a connecting rod 242, a first piston rod 243, and a support cavity 244. The rotating plate 241 has multiple through holes 2411 that penetrate the rotating plate 241. The rotating plate 241 is rotatably connected to the rotating shaft 104 through the through holes 2411. The ends of the multiple rotating plates 241 away from the rotating shaft 104 are rotatably connected to each other through the connecting rod 242. The first piston rod 243 is rotatably connected to the side wall of the rotating plate 241. The end of the first piston rod 243 away from the push plate 21 is sealed and slidably fitted with the support cavity 244. The end of the support cavity 244 is connected to the hydraulic component 4.

[0075] The first piston rod 243 is parallel to the support cavity 244 and the lower end face of the lower support frame 1. When the damping fluid enters the support cavity 244, it pushes the first piston rod 243 to move along the support cavity 244 towards the side closer to the rotating plate 241, and drives the rotating plate 241 to rotate around the central axis of the rotating shaft 104 connected to it, until the rotating plate 241 is perpendicular to the upper end face of the lower support frame 1, thereby achieving self-locking of the push plate 21. When the other side of the angle steel is punched, the self-locking part 24 on that side does not need to enter the self-locking state. At this time, the damping fluid in the support cavity 244 on that side self-locking part 24 acts on the first piston. The thrust of rod 243 is relatively small, and during the sliding process of push plate 21 along the outer wall of lower support frame 1, the rotating plate 241, which was originally in a vertical state, can return to an inclined state until it is lower than the upper end face of lower support frame 1. This is beneficial for releasing the self-locking state of the first support member 2 on the other side when punching the angle steel on the other side. When the upper angle steel is compressed, the elastic deformation of the flexible layer causes the position between the upper angle steel and the lower angle steel to shift. This allows the compressed side wall of the upper angle steel to slide parallel, while the non-compression side wall of the angle steel always moves coplanarly. Therefore, it can increase the coaxiality of the central axis of the hole of the upper angle steel and the lower angle steel during punching. Furthermore, this locking makes the upper angle steel and the first support member 2 a rigid stop. Compared with the constraint method that relies on friction or elastic deformation, this rigid stop can provide a more stable and predictable limiting effect, and its constraint capability is not easily affected by the load size, vibration or surface condition.

[0076] The second support member 3 includes a second piston rod 32 and a support cylinder 31. Multiple support plates 101 are symmetrically arranged on the outer side of the lower support frame 1, and the position of the support plates 101 is parallel to that of the lower support frame 1. The support cylinder 31 is provided through the inner side of the support plate 101, and the second piston rod 32 is slidably connected to the inner side of the support cylinder 31. The end of the second piston rod 32 is fixedly connected to the pressing frame 51.

[0077] In use, the central axis of the support cylinder 31 is perpendicular to the side wall of the lower support frame 1 that contacts the angle steel. Simultaneously, the end of the second piston rod 32 is fixedly connected to the pressing frame 51. When the damping fluid in the hydraulic assembly 4 enters the support cylinder 31, it drives the second piston rod 32 to move along the support cylinder 31 towards the side closer to the lower support frame 1. During punching by the punching machine 5, the punching machine 5 moves towards the side closer to the angle steel and forces the trigger assembly 6 corresponding to that side of the angle steel to retract inward. At this time, the damping fluid in the hydraulic assembly 4 corresponding to that trigger assembly 6 enters the other side of the angle steel. The second support member 3 is placed inside the support cylinder 31 on the side, and the second support member 3 is driven to fit against the outer wall of the angle steel, thereby restricting the outer layer angle steel on this side from sliding away from the lower support frame 1, and further restricting the movement path of the angle steel. By restricting the degree of freedom of movement on the non-stressed side, this mechanism helps to accurately control the overall movement path of the angle steel under punching pressure, making it closer to parallel movement rather than irregular deformation, and further coordinating to ensure the relative positional stability between the upper and lower layers of the double-layer angle steel during processing, which has a positive effect on maintaining its coaxiality.

[0078] The hydraulic assembly 4 includes a hydraulic channel 41, a first hose 42, and a second hose 43. Multiple hydraulic channels 41 are provided directly below the lower support frame 1, and one of the hydraulic channels 41 is connected to the support cylinder 31 perpendicular to the left side of the angle steel through multiple first hoses 42. At the same time, the hydraulic channel 41 is sealed to the support cavity 244 on the right side of the angle steel through multiple second hoses 43.

[0079] In use, the first support member 2 and the second support member 3 connected by the same set of hydraulic components 4 are located on the two sides of the angle steel respectively. At the same time, when the punching machine 5 on one side is driven, the hydraulic component 4 on the other side is in a non-stressed state. At this time, the angle steel is clamped and fixed by the first support member 2 and the second support member 3 connected by the same set of hydraulic components 4, so that the angle steel can only slide along the outer wall surface of the push plate 21 on the first support member 2 on the side of the angle steel under pressure. This can reduce the stress concentration on the inner side of the angle steel caused by multiple first support members 2 simultaneously exerting force on both ends of the angle steel. The left support cylinder 31 and the right support cavity 244 are cross-connected through the same hydraulic channel 41 to ensure that when the punching pressure is triggered, the non-stressed side of the angle steel simultaneously activates the lateral constraint of the second support member 3 and the self-locking function of the first support member 2, forming a precise force transmission closed loop.

[0080] The triggering component 6 includes a guide tube 61, a trigger plate 62, and a guide rod 63. The guide tube 61, which passes through the hydraulic channel 41, is fixed on the outside of the hydraulic channel 41. The guide rod 63 is slidably arranged on the inside of the guide tube 61. The guide rod 63 passes through the lower support frame 1. The guide tube 61 is arranged perpendicular to the lower end face of the lower support frame 1.

[0081] In use, the punching machine 5 moves towards the side closer to the angle steel and presses the angle steel, trigger plate 62, and guide rod 63 to slide inward along the guide tube 61, thereby causing the damping fluid in the guide tube 61 to enter the hydraulic channel 41. Through the first hose 42 and the second hose 43 connected to it, the corresponding first support member 2 and second support member 3 are driven to limit the angle steel. The direct contact between the punching machine 5 and the angle steel causes the trigger plate 62 and the guide rod 63 to move. The linear displacement of the angle steel pushed by the punching machine 5 is directly applied to the guide rod 63 through the trigger plate 62. The vertical guidance through the guide tube 61 reduces the interference of lateral force, which is beneficial to improving the accuracy of the transmission of displacement data to the hydraulic system.

[0082] At the same time, the action of the guide rod 63 compressing the damping fluid in the guide tube 61 is synchronized with the force displacement of the angle steel, realizing the instantaneous conversion of mechanical energy into hydraulic energy, which can shorten the system response delay.

[0083] The lower support frame 1 is provided with a groove 105 at the position corresponding to the trigger component 6, and a guide hole 106 is provided on the inner side of the groove 105 to penetrate the lower support frame 1. The guide rod 63 is provided through the guide hole 106, and the thickness of the groove 105 is greater than the thickness of the trigger plate 62.

[0084] When the guide hole 106 is used to provide a moving fulcrum for the guide rod 63, it helps to improve the stability of the movement of the guide rod 63. At the same time, since the thickness of the sink 105 is greater than the thickness of the trigger plate 62, when the side of the trigger plate 62 away from the angle steel is in contact with the bottom wall of the sink 105, the angle steel can be in contact with the outer wall of the lower support frame 1. This prevents the angle steel from not being in contact with the outer wall of the lower support frame 1 due to the excessive thickness of the trigger plate 62. By making the thickness of the sink 105 greater than the thickness of the trigger plate 62, the stability of the contact between the angle steel and the outer wall of the lower support frame 1 can be improved.

[0085] The pressing frame 51 includes a first horizontal plate 511, a second horizontal plate 512, and a second telescopic rod 513. The lower end of the punching machine 5 is fixed with the first horizontal plate 511, and the lower end of the first horizontal plate 511 is fixed with a plurality of second telescopic rods 513. The end of the second telescopic rod 513 is fixed with the second horizontal plate 512.

[0086] In use, the second horizontal plate 512 is restricted by the second telescopic rod 513 and can slide along the central axis of the second telescopic rod 513. Therefore, the second horizontal plate 512 and the first horizontal plate 511 are movably connected and pass through and are always parallel to the side wall of the corresponding lower support frame 1. When punching, when the angle steel moves to fit against the outer wall of the lower support frame 1, the second telescopic rod 513 is compressed to its shortest state. After the damping fluid enters the support cylinder 31, it drives the second piston rod 32 and the second horizontal plate 512 to move towards the side closer to the lower support frame 1. Under the premise that the lower steel plate is close to the outer wall of the lower support frame 1, the upper angle steel can be pressed in parallel, thereby increasing the static friction between the pressing frame 51 and the upper angle steel, thereby improving the stability of the upper angle steel.

[0087] The following description, in conjunction with the accompanying drawings and embodiments, provides a further explanation of a punching machine for producing large angle steel according to the present invention.

[0088] Place the double-layer sandwich angle steel directly above the lower support frame, ensuring that the two mutually perpendicular inner walls of the angle steel are in contact with the outer wall of the trigger plate of the trigger assembly. At this time, the push plate of the first support member abuts against the outer wall of the angle steel under the action of the support spring, achieving initial flexible pre-tightening positioning.

[0089] When the left punching machine moves towards the angle steel: the punching machine pushes the pressing frame to press the left side wall of the angle steel, forcing the angle steel to move horizontally towards the lower support frame; when the angle steel moves, it presses the trigger plate of the left trigger assembly, causing the guide rod to slide vertically along the guide tube, compressing the damping fluid in the guide tube; the damping fluid is diverted through the hydraulic channel and delivered to the support cylinder of the right second support member through the first hose, and at the same time delivered to the self-locking support cavity of the right first support member through the second hose; the damping fluid in the right support cylinder pushes the second piston rod to extend, causing the pressing frame and the second horizontal plate to press against the right side wall of the angle steel to form a lateral constraint; at the same time, the damping fluid in the support cavity pushes the first piston rod, driving the rotating plate to rotate around the rotating shaft 104 to a vertical state, so that its top protrudes out of the rectangular groove of the push plate and forms a rigid stop with the side wall of the push plate, suppressing the downward trend of the push plate caused by the pressure of the upper angle steel; at this time, the left side of the angle steel is rigidly supported by the lower support frame, and the right side is laterally constrained by the second support member. The upper angle steel restricts the interlayer displacement through the rigid stop, and the flexible sandwich layer buffers the deformation, keeping the upper angle steel in a parallel movement path;

[0090] When the punching is completed and the process is switched to the right side, the damping fluid of the hydraulic component on the left side flows back. The rotating plate of its self-locking component is pressed by the corresponding push plate and tilts around the rotating shaft 104. The end drops below the upper surface of the lower support frame and is stored in the rectangular groove. At the same time, the second support retracts, releasing the constraint on this side to adapt to the new stress state.

[0091] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A punching machine for producing large angle steel, characterized in that, include: The lower support frame (1), the first support member (2), the second support member (3), and the hydraulic assembly (4); A punching machine (5) is vertically installed on multiple side walls of the lower support frame (1), and a pressing frame (51) is fixed at the end of the punching machine (5). The pressing frame (51) is slidably installed with the punching machine (5), and the outer side of the pressing frame (51) is fixedly connected to the second support member (3). The first support member (2) is perpendicular to the side wall of the lower support frame (1), and the first support member (2) is slidably disposed along the side wall of the lower support frame (1); The second support frame is arranged parallel to the upper end face of the lower support frame (1), and trigger components (6) penetrating the lower support frame (1) are provided on multiple inner sides of the lower support frame (1); The triggering component (6) on the left is connected to the first support member (2) and the second support member (3) on the right via the hydraulic component (4); When the trigger component (6) is pressed by the translation of the angle steel, the hydraulic component (4) drives the second support member (3) on the opposite side to move towards the non-force-bearing side wall of the angle steel and abut against it, while driving the self-locking member (24) of the first support member (2) on the opposite side to rotate to suppress the angle steel from sliding down. When the punching machine (5) switches to apply pressure to the other side of the angle steel, the damping fluid of the hydraulic component (4) on the original non-force-bearing side flows back, releasing the locking state of the self-locking part (24) and reducing the pressure of the second support part (3).

2. The punching machine for large angle steel production according to claim 1, characterized in that, The first support member (2) includes a push plate (21), a telescopic rod (22), a support spring (23), and a self-locking member (24). The upper end surface of the lower support frame (1) is slidably provided with the push plate (21), and the side of the push plate (21) away from the angle steel is fixed with the telescopic rod (22). The other end of the telescopic rod (22) is fixed to the lower inner wall of the lower support frame (1), and the outer side of the telescopic rod (22) is surrounded by the support spring (23). The two sides of the lower support frame (1) are provided with self-locking members (24) that are adapted to the push plate (21).

3. The punching machine for large angle steel production according to claim 1, characterized in that, The upper end face of the lower support frame (1) is fixed with a support plate (101), and a sliding groove (102) is provided on the inner side of the support plate (101). The two ends of the push plate (21) are arranged through the sliding groove (102).

4. A punching machine for producing large angle steel according to claim 3, characterized in that, The support plate (101) has a rectangular groove (103) on the side away from the angle steel, and multiple rotating shafts (104) are fixed at equal intervals on the inner side of the rectangular groove (103). When the self-locking member (24) rotates to be perpendicular to the end face of the lower support frame (1), the self-locking member (24) protrudes out of the rectangular groove (103).

5. A punching machine for producing large angle steel according to claim 4, characterized in that, The self-locking component (24) includes a rotating plate (241), a connecting rod (242), a first piston rod (243), and a support cavity (244). The rotating plate (241) has multiple through holes (2411) on its inner side. The rotating plate (241) is rotatably connected to the rotating shaft (104) through the through holes (2411). The ends of the multiple rotating plates (241) away from the rotating shaft (104) are rotatably connected to each other through the connecting rod (242). The side wall of the rotating plate (241) is rotatably connected to the first piston rod (243). The end of the first piston rod (243) away from the push plate (21) is sealed and slidably fitted with the support cavity (244). The end of the support cavity (244) is connected to the hydraulic component (4).

6. A punching machine for producing large angle steel according to claim 1, characterized in that, The second support member (3) includes a second piston rod (32) and a support cylinder (31). Multiple support plates (101) are symmetrically arranged on the outer side of the lower support frame (1), and the position of the support plate (101) is parallel to that of the lower support frame (1). The support cylinder (31) is provided through the inner side of the support plate (101), and the second piston rod (32) is slidably connected to the inner side of the support cylinder (31). The end of the second piston rod (32) is fixedly connected to the pressing frame (51).

7. A punching machine for producing large angle steel according to claim 1, characterized in that, The hydraulic assembly (4) includes a hydraulic channel (41), a first hose (42), and a second hose (43). Multiple hydraulic channels (41) are provided directly below the lower support frame (1), and one of the hydraulic channels (41) is connected to the support cylinder (31) perpendicular to the left side of the angle steel through multiple first hoses (42). At the same time, the hydraulic channel (41) is sealed to the support cavity (244) on the right side of the angle steel through multiple second hoses (43).

8. A punching machine for producing large angle steel according to claim 1, characterized in that, The triggering component (6) includes a guide tube (61), a trigger plate (62), and a guide rod (63). The guide tube (61) is fixed on the outside of the hydraulic channel (41) and passes through the hydraulic channel (41). The guide rod (63) is slidably arranged on the inside of the guide tube (61) and passes through the lower support frame (1). The guide tube (61) is perpendicular to the lower end face of the lower support frame (1).

9. A punching machine for producing large angle steel according to claim 8, characterized in that, The lower support frame (1) has a groove (105) at the position corresponding to the trigger assembly (6), and a guide hole (106) through the lower support frame (1) is provided on the inner side of the groove (105). The guide rod (63) is provided through the guide hole (106), and the thickness of the groove (105) is greater than the thickness of the trigger plate (62).

10. A punching machine for producing large angle steel according to claim 9, characterized in that, The pressing frame (51) includes a first horizontal plate (511), a second horizontal plate (512), and a second telescopic rod (513). The lower end of the punching machine (5) is fixed with the first horizontal plate (511), and the lower end of the first horizontal plate (511) is fixed with a plurality of second telescopic rods (513). The end of the second telescopic rod (513) is fixed with the second horizontal plate (512).

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