Multifunctional automatic punching and cutting device for automobile frames

Abstract

The present invention relates to the technical field of punching machines. The present invention provides a multifunctional automatic punching and cutting integrated device for automobile frames, which includes a frame, a first lower die set on the frame; a second lower die slidingly set on the frame, a cutting gap formed between the first lower die and the first lower die, and the first lower die and the second lower die are used to jointly support the automobile frame after roller pressing; a tool lifting device is set on the frame and corresponds to the cutting gap up and down, and the tool is configured to be able to slide into the cutting gap after descending to cut off the automobile frame located above the cutting gap; there are two rotating wheels, which are symmetrically set on both sides of the second lower die, and the rotating wheels are sliding and rotatingly set on the frame. After the tool is configured to cut the automobile frame, the two rotating wheels can approach each other to clamp the second lower die, and rotate synchronously to drive the second lower die to slide away from the first lower die. Through the above technical solution, the technical problem of the tool being worn when the tool is reset after cutting the frame and contacts the cut finished product in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of punching machines, and in particular to a multifunctional automatic punching and cutting device for an automobile frame. Background Art

[0002] In the automotive manufacturing industry, body frame components often require bending and forming before being cut to meet dimensional requirements. When dealing with car frames of a certain thickness, the cutting process typically employs a method in which the tool and workpiece move synchronously. This means that both the tool and the bent car frame are in motion during the cutting process, and the cutting operation is accomplished through relative motion between the two.

[0003] In existing processes, the tool must be reset after completing the cut. During this process, the cut material stops moving while the tool is still in the reset process. The contact between the tool and the material, repeated over time, causes increased tool wear. As wear accumulates, cutting accuracy and efficiency decrease, necessitating frequent tool replacements, increasing tool consumption costs and equipment downtime during production. Summary of the Invention

[0004] To overcome the above-mentioned defects, an embodiment of the present invention provides a multifunctional automatic punching and cutting device for automobile frames, which solves the technical problem in the prior art that when the tool is reset after cutting the frame, it contacts the cut product and causes tool wear.

[0005] According to one aspect, at least one embodiment of the present invention provides

[0006] The multifunctional automatic punching and cutting device for automobile frames includes:

[0007] frame;

[0008] A first lower mold is arranged on the frame;

[0009] a second lower die, slidably disposed on the frame, and adapted to be close to the first lower die and to form a cutting gap between the first lower die, wherein the first lower die and the second lower die are adapted to jointly support the automobile frame after roller pressing;

[0010] a cutter, which is arranged on the frame in a lifting manner and corresponds to the cutting gap in an upper and lower direction, and is configured to slide into the cutting gap after being lowered to cut off the car frame located above the cutting gap;

[0011] There are two rotating wheels, which are symmetrically arranged on both sides of the second lower mold. The rotating wheels are slidably and rotatably arranged on the frame. After the tool is configured to cut off the car frame, the two rotating wheels can approach each other to clamp the second lower mold and rotate synchronously to drive the second lower mold to slide away from the first lower mold.

[0012] For example, the multifunctional automatic punching and cutting device for a car frame provided in at least one embodiment of the present invention further includes:

[0013] A mounting frame is provided on the frame and is located outside the first lower mold. A sliding column is provided on the top of the tool, which passes through the mounting frame and is slidably matched with the mounting frame. A first elastic member is sleeved on the sliding column. The first elastic member is provided between the mounting frame and the sliding column, and is used to drive the sliding column and the tool to move upward synchronously, so that the tool is out of the cutting gap.

[0014] A lifting plate is lifted and arranged on the frame, and the lifting plate is configured to be able to move downward and press the sliding column to drive the tool to move downward and extend into the cutting gap.

[0015] For example, in at least one embodiment of the present invention, in the multifunctional automatic punching and cutting device for an automobile frame, a slider for mounting the rotating wheel is slidably connected to the frame, and two sliders are symmetrically located on both sides of the second lower mold. The two sliders can approach each other to drive the rotating wheel to abut against the second lower mold.

[0016] A first vertical rod is connected to the bottom of the lifting plate, and the first vertical rod and the slider are connected by a connecting rod. The other end of the connecting rod is hinged on the slider. The first vertical rod can drive the slider to slide and approach the second lower mold through the connecting rod under the downward movement of the lifting plate.

[0017] For example, in at least one embodiment of the present invention, a multifunctional automatic punching and cutting device for a car frame is provided.

[0018] A second vertical rod extending downward is slidably connected to the lifting plate, and the second vertical rod can move horizontally to approach or move away from the second lower mold;

[0019] The rotating wheel is rotatably connected to the slider via a rotating shaft. The rotating shaft has a mounting hole opening upward to accommodate the lower end of the second vertical rod. The inner wall of the mounting hole has a spiral groove. The second vertical rod has a sliding guide column, and the sliding guide column is slidably connected to the spiral groove. The second vertical rod can drive the rotating shaft to rotate through the cooperation of the sliding guide column and the spiral groove when the lifting plate moves downward.

[0020] For example, in the multifunctional automatic punching and cutting device for automobile frames provided in at least one embodiment of the present invention, the frame is further provided with a plurality of guide columns extending upward, and the guide columns are arranged through the lifting plate and slideably cooperate with the lifting plate.

[0021] For example, in the multifunctional automatic punching and cutting device for a car frame provided in at least one embodiment of the present invention, a mounting column is provided on the frame; the bottom of the mounting frame has a rotating portion, and the rotating portion is rotatably arranged at the upper end of the mounting column, and a number of the cutting tools are arranged at intervals on the mounting frame, and the rotating portion is configured to rotate relative to the mounting column to drive one of the cutting tools to move above the cutting gap.

[0022] For example, in the multifunctional automatic punching device for automobile frames provided in at least one embodiment of the present invention, the mounting post is threadedly arranged on the frame, and the mounting post is configured to be able to move up and down to adjust the punching gap between the cutting edge of the tool and the automobile frame.

[0023] For example, the multifunctional automatic punching and cutting device for a car frame provided in at least one embodiment of the present invention further includes:

[0024] The abutment plate is arranged at the upper end of the sliding column. The abutment plate is used to abut against the lifting plate and drive the tool to move downward under the action of the lifting plate.

[0025] For example, the multifunctional automatic punching and cutting device for a car frame provided in at least one embodiment of the present invention further includes:

[0026] A second elastic member has one end connected to the frame and the other end connected to the second lower mold. The second elastic member can elastically pull the second lower mold so that the second lower mold is close to the first lower mold and forms the cutting gap.

[0027] For example, in the multifunctional automatic punching and cutting device for automobile frames provided in at least one embodiment of the present invention, the frame has a discharge port corresponding to and connected to the cutting gap above and below.

[0028] The beneficial effects of the embodiments of the present invention are:

[0029] In the present invention, the slider is slidably connected to the frame via guide rails, enabling horizontal movement. The fixed connection between the first vertical rod and the lifting plate enables a connecting rod to convert the vertical movement of the lifting plate into horizontal movement of the slider, forming a linkage mechanism. When the lifting plate descends to drive the cutter to cut the car frame, the connecting rod simultaneously drives the slider, causing the rotating wheel to approach and clamp the second lower die, ensuring the timing synchronization between the cutting and clamping actions.

[0030] This structural design utilizes the same lift plate power source to simultaneously achieve both tool lift and horizontal movement of the rotary wheel, eliminating the need for independent drive components and simplifying the equipment structure. Combined with the claimed design of the rotary wheel driving the sliding movement of the second lower die, after cutting is completed, the rotary wheel's rotational power is transmitted to the second lower die through clamping force, effectively moving it away from the cutting gap and preventing contact with the material during tool reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0032] Figure 1 A partial schematic diagram of a multifunctional automatic punching and cutting device for a car frame according to one embodiment of the present invention;

[0033] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0034] Figure 3 for Figure 1 An enlarged schematic diagram of point B;

[0035] Figure 4 This is a schematic structural diagram of a multifunctional automatic punching and cutting device for a car frame according to one embodiment of the present invention;

[0036] Figure 5 for Figure 1 A schematic structural diagram of the second elastic member in an embodiment of the present invention;

[0037] Figure 6 for Figure 1 A schematic structural diagram of a sliding guide post in an embodiment of the present invention;

[0038] Figure 7 for Figure 1 Schematic diagram of the structure of the spiral groove in the embodiment of the present invention.

[0039] In the figure: 1. frame, 2. first lower die, 3. second lower die, 31. cutting gap, 4. tool, 5. rotating wheel, 6. mounting frame, 7. lifting plate, 8. slider, 9. first vertical rod, 10. connecting rod, 11. second vertical rod, 13. rotating shaft, 131. mounting hole, 111. sliding guide column, 132. spiral groove, 14. mounting column, 15. rotating part, 151. mounting position, 42. abutting plate, 16. second elastic member, 101. discharge port, 17. guide column, 18. first elastic member. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0041] To simplify the drawings, only the parts relevant to the disclosure are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0042] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0045] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0046] like Figures 1 to 7FIG. 1 shows a multifunctional automatic punching and cutting device for an automobile frame according to an embodiment of the present invention. A first lower die 2 is fixedly mounted on a frame 1 and is used to support a portion of the automobile frame after roller pressing. A second lower die 3 is slidably mounted on the frame 1 and is capable of sliding relative to the frame 1. A cutting gap 31 is formed between the second lower die 3 and the first lower die 2. The cutting gap 31 is used to accommodate a tool 4. The upper surfaces of the first lower die 2 and the second lower die 3 together form a supporting plane for supporting the automobile frame after roller pressing, so that the automobile frame spans above the cutting gap 31.

[0047] Cutting tool 4 is mounted on frame 1 and raised and lowered by a lifting drive mechanism (not shown). This mechanism, such as a pneumatic cylinder, hydraulic cylinder, or screw-nut mechanism, drives cutting tool 4 in vertical motion. As cutting tool 4 descends, its blade slides into cutting gap 31 and, through interaction with first lower die 2 and second lower die 3, severs the vehicle frame supported above cutting gap 31.

[0048] Two rotating wheels 5 are mounted on the frame 1 via a movable guide mechanism and a rotating support mechanism. The movable guide mechanism, for example, a linear guide, enables the rotating wheels 5 to move horizontally toward or away from the second lower die 3. The rotating support mechanism, for example, a bearing, rotatably mounts the rotating wheels 5 on the sliding member of the movable guide mechanism. When the cutter 4 cuts the car frame, the rotating wheels 5 are driven along the movable guide mechanism toward the second lower die 3 until their outer peripheral surfaces contact the side surfaces of the second lower die 3, forming a clamping force. Subsequently, the rotating wheels 5 begin to rotate under the action of a drive device (not shown). Due to friction between the rotating wheels 5 and the second lower die 3 or a transmission mechanism such as a toothed fit, the rotation of the rotating wheels 5 is converted into sliding motion of the second lower die 3 away from the first lower die 2. This allows the severed material on the second lower die 3 to be promptly removed from the cutter 4 after the cut is completed.

[0049] In this embodiment, the fixed setting of the first lower mold 2 and the sliding setting of the second lower mold 3 cooperate to form a cutting gap 31 for cutting operations, providing space for the cutting action of the tool 4. The lifting setting of the tool 4 enables it to cut into the cutting gap 31 to achieve the cutting of the car frame. When the tool 4 cuts the car frame, the rotating wheel 5 approaches and clamps the second lower mold 3, and drives the second lower mold 3 to slide away from the first lower mold 2 through rotation, so that the cut material moves with the second lower mold 3 and quickly leaves the tool 4. It ensures that when the tool 4 is reset after completing the cutting action, the cut material has been removed with the second lower mold 3, and there is no longer contact between the tool 4 and the material, which fundamentally avoids the wear problem caused by the contact between the tool 4 and the material when resetting in the prior art.

[0050] The coordinated movement of the rotating wheel 5 and the second lower die 3 effectively reduces wear on the cutting tool 4, thereby extending its service life and reducing the frequency of tool replacement. This not only reduces the cost of cutting tool 4 during production but also avoids equipment downtime caused by frequent tool replacement, thereby improving production efficiency. Furthermore, the stable state of the cutting tool 4 ensures long-term cutting accuracy, ensuring that the processing quality of automotive frame components meets requirements.

[0051] like Figure 1 As shown, the mounting frame 6 is connected to the frame 1 and serves as a support structure for the lifting and lowering movement of the tool 4, and a guide space is formed inside the mounting frame 6 for the tool 4 to move. The lifting plate 7 is set on the frame 1 through a guide component. For example, a vertical guide column 17 is fixed on the frame 1, and a through hole is provided on the lifting plate 7 to cooperate with the guide column 17 to form a lifting guide structure. A driving component, such as a cylinder or a hydraulic cylinder, is provided above the lifting plate 7, which can drive the lifting plate 7 to move up and down along the guide column 17. When the lifting plate 7 is driven to descend, its bottom surface contacts the top surface of the tool 4 and applies a downward thrust, driving the tool 4 to synchronously descend along the guide rail of the mounting frame 6, so that the blade of the tool 4 slides into the cutting gap 31, completing the cutting operation of the car frame.

[0052] A first elastic member 18 is disposed between the mounting bracket 6 and the cutter 4, with one end fixedly connected to the bottom surface of the mounting bracket 6 and the other end fixedly connected to the top surface of the cutter 4. For example, the first elastic member 18 is a spring, which is mounted on a guide rod at the top of the cutter 4. This guide rod engages with a guide hole in the bottom surface of the mounting bracket 6 to ensure stability during the spring's compression and extension processes. When the lifting plate 7 rises and disengages from the cutter 4, the first elastic member 18, through its own elastic restoring force, pushes the cutter 4 upward, causing the cutter 4 to slide upward along the guide rail of the mounting bracket 6, quickly sliding out of the cutting gap 31 and returning to its original position.

[0053] Mounting bracket 6 provides a guide for the tool 4 to rise and fall, preventing deviations in the cut caused by wobbling during the lifting process. Lifting plate 7, through contact transmission with tool 4, transmits its own lifting motion to the tool 4, enabling the tool 4 to actively press down and cut. This structural design simplifies the drive method for tool 4 and improves the reliability of the cutting operation through the coordinated movement of all components.

[0054] The provision of the first elastic member 18 forms a passive reset mechanism for the cutter 4. When the lifting plate 7 rises to release the pressure on the cutter 4, the elastic force of the first elastic member 18 can quickly bounce the cutter 4 upward, causing it to clear the cutting gap 31. This combination of active downward pressure and passive reset ensures that the cutter 4 quickly leaves the cutting area after completing the cut, forming a temporal coordination with the action of the rotary wheel 5 driving the second lower die 3 to slide as described in the claims. Before the cutter 4 resets, the second lower die 3 has already begun to drive the cut material to move, further avoiding the possibility of the cutter 4 coming into contact with the material during the reset process. The elastic reset structure reduces the reliance on complex drive mechanisms, reduces equipment costs, and improves the reset efficiency of the cutter 4, ensuring the continuity of the entire punching process.

[0055] like Figure 2 As shown, the frame 1 is provided with a horizontal guide rail. Two sliders 8 are mounted on the frame 1 via a sliding connection structure that cooperates with the guide rail and can slide horizontally along the guide rail. The two sliders 8 are symmetrically distributed on the left and right sides of the second lower mold 3. A first vertical rod 9 is fixed vertically to the bottom surface of the lifting plate 7, and its extension direction is consistent with the lifting direction of the lifting plate 7. One end of the connecting rod 10 is hinged to the middle of the first vertical rod 9 via a pin, and the other end is hinged to the slider 8 via a pin, forming a hinged connection structure. When the lifting plate 7 is driven to descend, the first vertical rod 9 moves downward synchronously with the lifting plate 7. The connecting rod 10 drives the slider 8 to slide along the guide rail toward the second lower mold 3, so that the outer circumference of the wheel 5 contacts the side of the second lower mold 3 and forms a clamping force. When the lifting plate 7 is raised, the connecting rod 10 drives the slider 8 to slide away from the second lower mold 3, separating the wheel 5 from the second lower mold 3.

[0056] Sliding slide 8 is connected to frame 1 via guide rails, enabling horizontal movement. The fixed connection between first vertical rod 9 and lifting plate 7 enables connecting rod 10 to convert the vertical movement of lifting plate 7 into horizontal movement of slider 8, forming a linkage mechanism. When lifting plate 7 descends to drive cutter 4 to cut the car frame, connecting rod 10 simultaneously drives slider 8, causing runner 5 to approach and clamp second lower die 3, ensuring the timing synchronization between the cutting and clamping actions.

[0057] This structural design utilizes the same power source as the lifting plate 7 to simultaneously lift the cutter 4 and horizontally move the wheel 5, eliminating the need for independent drive components and simplifying the device structure. Combined with the claimed design that the rotation of the wheel 5 drives the sliding movement of the second lower die 3, after cutting is completed, the rotational power of the wheel 5 is transmitted to the second lower die 3 through the clamping force, promptly moving it away from the cutting gap 31 and preventing contact between the cutter 4 and the material during its reset.

[0058] like Figures 5 to 7As shown, a vertical guide hole is provided on the lifting plate 7, and the second vertical rod 11 slides in cooperation with the guide hole and can move up and down as a whole with the lifting plate 7. A horizontal sliding guide post 111 is provided on the side of the second vertical rod 11 facing the second lower mold 3. The slider 8 and the rotating shaft 13 rotate synchronously, and the rotating wheel 5 is fixedly mounted on the rotating shaft 13. A mounting hole 131 is provided at one end of the rotating shaft 13 close to the second vertical rod 11, and the opening of the mounting hole 131 faces the second vertical rod 11. A spiral groove 132 is machined on the inner wall of the mounting hole 131, and the sliding guide post 111 on the second vertical rod 11 is stuck in the spiral groove 132.

[0059] When the lifting plate 7 is driven downward, the second vertical rod 11 moves downward accordingly. Due to the cooperation between the sliding guide post 111 and the spiral groove 132, the sliding guide post 111 moves along a spiral trajectory within the spiral groove 132, thereby driving the rotating shaft 13 to rotate about its own axis, thereby causing the rotating wheel 5 to rotate synchronously. At the same time, the lifting plate 7 descends, driving the slider 8 to slide toward the second lower mold 3 through the first vertical rod 9 and the connecting rod 10, so that the outer peripheral surface of the rotating rotating wheel 5 abuts the side of the second lower mold 3, and the second lower mold 3 slides away from the first lower mold 2 through friction or the transmission structure. When the lifting plate 7 rises, the second vertical rod 11 moves upward, and the sliding guide post 111 moves in the opposite direction along the spiral groove 132, causing the rotating shaft 13 to reverse. At the same time, the slider 8, driven by the connecting rod 10, slides away from the second lower mold 3, causing the rotating wheel 5 to separate from the second lower mold 3.

[0060] The coordinated structure of the sliding guide post 111 and the spiral groove 132 converts the linear motion of the second vertical rod 11 into rotation of the rotating shaft 13. Through the single lifting motion of the lifting plate 7, the tool 4 descends to cut, the slider 8 drives the wheel 5 toward the approach and clamps it, and the wheel 5 is driven to rotate, further simplifying the device's power system and transmission structure. As the tool 4 descends to cut the car frame, the wheel 5 simultaneously rotates to clamp the second lower die 3 and drive it to slide, ensuring that the severed material leaves the cutting area promptly and avoids interference with the tool 4's return path.

[0061] like Figure 3 As shown, the frame 1 is provided with an internally threaded hole, and the outer circumference of the mounting post 14 is provided with an external thread. The mounting post 14 is screwed into the internally threaded hole of the frame 1 through threaded engagement. The top of the mounting post 14 is provided with a mounting structure for mounting the mounting bracket 6. The conversion portion of the mounting bracket 6 is rotatably mounted on the top of the mounting post 14 via a bearing.

[0062] To adjust the punching clearance between the cutter 4 and the vehicle frame, the mounting post 14 is rotated, allowing the threaded drive to move the mounting post 14 axially relative to the frame 1. Since the mounting bracket 6 is mounted on the mounting post 14, the movement of the mounting post 14 drives the mounting bracket 6 axially. This movement of the cutter 4 changes the distance between the cutter 4 and the vehicle frame located above the first and second lower dies 2 and 3, thereby adjusting the punching clearance. After adjustment is complete, the mounting post 14 is secured to the frame 1 using a lock nut or other locking mechanism to prevent it from loosening during operation.

[0063] The threaded connection structure between the mounting post 14 and the frame 1 provides a simple and effective way to adjust the punching gap between the tool 4 and the car frame. By rotating the mounting post 14, the axial movement distance of the tool 4 can be accurately controlled to achieve fine adjustment of the punching gap.

[0064] This structural design enables the device to adjust the position of the tool 4 according to the different thicknesses and materials of the car frame, ensuring that the punching gap between the tool 4 and the car frame is in the optimal state. A reasonable punching gap can increase the service life of the tool 4, avoiding incomplete cutting due to a gap that is too large, or excessive friction between the tool 4 and the car frame due to a gap that is too small, resulting in increased wear. In conjunction with the design of switching between multiple tools 4, after replacing different types of tools 4, the position of the mounting column 14 can still be adjusted to ensure that each tool 4 can work with a suitable punching gap, thereby improving the adaptability of the equipment to different processing requirements. The abutment plate 42 can increase the contact area between the lifting plate 7 and the tool 4.

[0065] like Figure 5 As shown, a slide groove is provided on the frame 1, and the second lower mold 3 is slidably disposed within the slide groove. A second elastic member 16 is connected to a fixed connection point of the frame 1 at one end and to the second lower mold 3 at the other end. The second elastic member 16 is a spring, and the two ends of the spring are connected to the frame 1 and the second lower mold 3 respectively via hooks.

[0066] When the wheel 5 drives the second lower die 3 to slide away from the first lower die 2, the second elastic member 16 is stretched, storing elastic potential energy. After the cutter 4 completes the cutting action and the wheel 5 stops rotating and separates from the second lower die 3, the second elastic member 16 contracts by relying on its own elastic recovery force, generating a pulling force on the second lower die 3, pulling the second lower die 3 back and moving it toward the first lower die 2 until it returns to its initial position, ready for the next punching process. Since the second elastic member 16 will shake after shrinking, a sink groove can be designed at the bottom of the slide, and there is also a spring in the sink groove. The spring pushes up a block. When the second lower die 3 is reset under the drive of the second elastic member 16, the block pushes up to prevent the second lower die 3 from shaking. When the wheel 5 squeezes the second lower die 3, it drives the block down, and the second lower die 3 can be away from the first lower die 2.

[0067] The second elastic member 16 establishes an elastic connection between the frame 1 and the second lower die 3. The elastic force generated by its own expansion and contraction provides the reset force for the second lower die 3. After the rotary wheel 5 drives the second lower die 3 to move and complete material transfer, the contraction and reset function of the second elastic member 16 automatically returns the second lower die 3 to its initial position. This eliminates the need for additional drive devices or complex control systems, simplifying the equipment structure.

[0068] The second lower die 3 resets after each punching operation, ensuring continuity of the punching process. The design in which the cutter 4 cuts and the runner 5 drives the second lower die 3 creates a complete working cycle of cutting, material transfer, and reset. The reset of the second lower die 3 ensures accurate positioning of the car frame during each processing, improving processing accuracy and avoiding cutting errors caused by positional deviations of the second lower die 3. Furthermore, the elastic reset mechanism provides a buffering effect, reducing impact and vibration during the reset process, thereby reducing wear on mechanical components.

[0069] like Figure 5 As shown, a discharge port 101 is provided on the frame 1 . The discharge port 101 is in a long strip-shaped structure, one end of which is connected to the cutting gap 31 and the other end extends to the bottom of the frame 1 .

[0070] As the second lower die 3 slides away from the first lower die 2, driven by the rotating wheel 5, the waste material originally in the cutting gap 31 gradually falls to the discharge port 101 as the second lower die 3 moves, and is then released from the discharge port 101, completing the discharge of the waste material. During the return process of the second lower die 3, the discharge port 101 does not hinder the movement of the second lower die 3, ensuring that the second lower die 3 can smoothly return to its original position.

[0071] The sliding movement of the second lower die 3, in conjunction with the discharge port 101, allows waste to be automatically discharged with the movement of the second lower die 3, eliminating the need for manual intervention or additional waste removal equipment. This simplifies the equipment's waste handling process. This prevents waste from accumulating within the cutting gap 31, preventing it from interfering with the normal cutting action of the cutter 4 and the movement of the second lower die 3, ensuring smooth punching. Furthermore, the timely discharge of waste reduces wear on equipment components.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. The multifunctional automatic punching and cutting device for automobile frame is characterized by: include: Rack (1); A first lower mold (2) is arranged on the frame (1); a second lower die (3) slidably disposed on the frame (1) and used to be close to the first lower die (2) and to form a cutting gap (31) with the first lower die (2); the first lower die (2) and the second lower die (3) are used to jointly support the automobile frame after roller pressing; A cutter (4) is arranged on the frame (1) in a lifting manner and corresponds to the cutting gap (31) in an upper and lower direction. The cutter (4) is configured to slide into the cutting gap (31) after being lowered to cut off the car frame located above the cutting gap (31); There are two rotating wheels (5) symmetrically arranged on both sides of the second lower mold (3), and the rotating wheels (5) are slidably and rotatably arranged on the frame (1). After the cutter (4) cuts the automobile frame, the two rotating wheels (5) can approach each other to clamp the second lower mold (3) and rotate synchronously to drive the second lower mold (3) to slide away from the first lower mold (2).

2. The multifunctional automatic punching and cutting device for automobile frame according to claim 1, characterized in that: Also includes: A mounting frame (6) is provided on the frame (1) and is located outside the first lower mold (2); a sliding column is provided on the top of the tool (4) and is provided through the mounting frame (6) and is slidably matched with the mounting frame (6); a first elastic member (18) is sleeved on the sliding column; the first elastic member (18) is provided between the mounting frame (6) and the sliding column and is used to drive the sliding column and the tool (4) to move upward synchronously so that the tool (4) is separated from the cutting gap (31); A lifting plate (7) is lifted and arranged on the frame (1), and the lifting plate (7) is configured to be able to move downward and press against the sliding column to drive the tool (4) to move downward and extend into the cutting gap (31).

3. The multifunctional automatic punching and cutting device for automobile frame according to claim 2, characterized in that: The frame (1) is slidably connected to a slider (8) for mounting the rotating wheel (5), and the sliders (8) are provided in two pieces and are symmetrically located on both sides of the second lower mold (3). The two sliders (8) can approach each other to drive the rotating wheel (5) to abut against the second lower mold (3); A first vertical rod (9) is connected to the lower side of the lifting plate (7), and the first vertical rod (9) and the slider (8) are connected via a connecting rod (10). One end of the connecting rod (10) is hinged on the first vertical rod (9), and the other end is hinged on the slider (8). The first vertical rod (9) can drive the slider (8) to slide and approach the second lower mold (3) through the connecting rod (10) under the downward movement of the lifting plate (7).

4. The multifunctional automatic punching and cutting device for automobile frame according to claim 3, characterized in that: A second vertical rod (11) extending downward is slidably connected to the lifting plate (7), and the second vertical rod (11) can move horizontally to approach or move away from the second lower mold (3); The rotating wheel (5) is rotatably connected to the slider (8) via a rotating shaft (13); the rotating shaft (13) has a mounting hole (131) which opens upward to accommodate the lower end of the second vertical rod (11); the inner wall of the mounting hole (131) has a spiral groove (132); the second vertical rod (11) has a sliding guide column (111); the sliding guide column (111) is slidably connected to the spiral groove (132); the second vertical rod (11) can drive the rotating shaft (13) to rotate through the cooperation of the sliding guide column (111) and the spiral groove (132) when the lifting plate (7) moves downward.

5. The multifunctional automatic punching and cutting device for automobile frame according to claim 2, characterized in that: The frame (1) is further provided with a plurality of guide posts (17) extending upwards, wherein the guide posts (17) are arranged through the lifting plate (7) and are in sliding engagement with the lifting plate (7).

6. The multifunctional automatic punching and cutting device for automobile frame according to claim 2, characterized in that: The frame (1) is provided with a mounting column (14); the bottom of the mounting frame (6) has a rotating portion (15), and the rotating portion (15) is rotatably arranged on the upper end of the mounting column (14); a plurality of the cutting tools (4) are arranged at intervals on the mounting frame (6); and the rotating portion (15) is configured to be able to rotate relative to the mounting column (14) to drive one of the cutting tools (4) to move to above the cutting gap (31).

7. The multifunctional automatic punching and cutting device for automobile frame according to claim 6, characterized in that: The mounting post (14) is threadedly arranged on the frame (1), and the mounting post (14) is configured to be movable up and down to adjust the punching gap between the cutting edge of the tool (4) and the car frame.

8. The multifunctional automatic punching and cutting device for automobile frame according to claim 6, characterized in that: Also includes: An abutment plate (42) is provided at the upper end of the sliding column, and the abutment plate (42) is used to abut against the lifting plate (7) and drive the tool to move downward under the action of the lifting plate (7).

9. The multifunctional automatic punching and cutting device for automobile frame according to any one of claims 1 to 8, characterized in that: Also includes: A second elastic member (16) is connected to the frame (1) at one end and to the second lower die (3) at the other end. The second elastic member (16) is capable of elastically pulling the second lower die (3) so that the second lower die (3) approaches the first lower die (2) and forms the cutting gap (31).

10. The multifunctional automatic punching and cutting device for automobile frame according to any one of claims 1 to 8, characterized in that: The frame (1) is provided with a discharge port (101) corresponding to and communicating with the cutting gap (31) above and below.

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