A straight and inclined integrated bending machine

Abstract

The utility model relates to the technical field of bending machine, concretely relates to a straight and inclined integrated bending machine, including the processing platform, the detachable installation of straight concave mould and inclined concave mould is arranged on the upper surface of processing platform, the upper of straight concave mould and inclined concave mould is provided with straight convex mould and inclined convex mould respectively, the four corner parts of straight concave mould and inclined concave mould all are provided with sleeve, the sleeve is provided with annular groove, the central position of sleeve is fixedly installed with the vertical guide rod of setting, the annular groove is provided with spring, and the spring is around the guide rod, the four corner parts of straight convex mould and inclined convex mould all are fixedly installed with sliding block, and the sliding block is sleeved on the guide rod and is connected between the guide rod and slidingly, the sliding block is above the spring, and the upper of straight convex mould and inclined convex mould all is provided with the hydraulic cylinder for driving the convex mould downward movement and bending operation. The utility model does not need to frequently dismount and install the die, and has the advantages of straight and inclined integrated machining.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically to a straight-slant integrated bending machine. Background Technology

[0002] As a core piece of equipment for metal sheet processing, bending machines are widely used in automobile manufacturing, home appliance production, hardware processing and other fields. Their main function is to apply pressure to metal sheets through molds, so that the sheets will bend and deform at a preset angle.

[0003] Currently, most bending machines on the market are single-function designs, meaning they can only perform straight-edge bending or bevel bending. If straight-edge workpieces need to be processed, straight-edge bending dies need to be installed; if beveled workpieces need to be processed, straight-edge dies need to be disassembled and beveled dies reinstalled. The invention patent with authorization announcement number CN116618485A discloses a CNC bending machine, which includes side plates, and the inner sides of the bottom walls of the side plates are connected to each other with support seats. This invention utilizes a support bracket to support the L-shaped plate. Workers place the plate on top of the support plate. Before bending the workpiece, a motor, controlled by a CNC system, starts, driving a gear through a reducer to rotate the frame along the outer edge of the arc-shaped guide rail. Simultaneously, under external force, the frame root moves rollers via connecting plates and wheel rods. The rollers rotate around the wheel rods using friction with the arc-shaped guide rail, allowing the frame to move along the arc-shaped guide rail under the support of the rollers and the support block. This ensures the movement trajectory of the support plate matches the bending trajectory of the workpiece, achieving real-time lifting of the bent workpiece and improving the bending effect.

[0004] While the aforementioned technical solutions have their advantages, they still require changing different molds to complete the bending operations for straight and beveled edges. This traditional design has significant drawbacks: firstly, frequent mold changes consume a lot of time, increasing equipment downtime and severely reducing production efficiency, especially in scenarios involving small batches and multiple product types, where the efficiency disadvantage is even more pronounced; secondly, the mold position needs to be repeatedly calibrated during mold changes, and insufficient calibration accuracy can easily lead to deviations in the bending dimensions of the workpiece, affecting product quality. Therefore, we propose a straight and bevel integrated bending machine. Utility Model Content

[0005] The purpose of this invention is to provide a straight-slant integrated bending machine to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A straight-oblique integrated bending machine includes a processing table. A straight die and an oblique die are detachably mounted on the upper surface of the processing table. A straight punch and an oblique punch are respectively arranged above the straight die and the oblique die. A sleeve is provided at each of the four corners of the straight die and the oblique die. An annular groove is provided in the sleeve. A vertically arranged guide rod is fixedly installed at the center of the sleeve. A spring is provided in the annular groove and is wound around the guide rod. A slider is fixedly installed at each of the four corners of the straight punch and the oblique punch. The slider is sleeved on the guide rod and slidably connected to the guide rod. The slider is located above the spring. A hydraulic cylinder for driving the punch to move downward to perform the bending operation is provided above the straight punch and the oblique punch.

[0007] Preferably, the sleeve is detachably mounted on the processing table, and the bottom end of the spring is fixedly mounted on the bottom wall of the annular groove; This feature facilitates the loading and unloading of the sleeve.

[0008] Preferably, the size of the slider is adapted to the size of the guide rod, and the hydraulic cylinder is provided with a crossbeam frame, on which the hydraulic cylinder is detachably mounted; This setup utilizes a crossbeam frame to support the hydraulic cylinder.

[0009] Preferably, the upper half of the spring is located outside the annular groove, and the bottom end of the spring abuts against the bottom surface of the slider. When the spring is in its normal state, the spring pushes the punch upward, and after the hydraulic cylinder pushes the punch downward, the spring is compressed into the annular groove to complete the mold closing operation of the punch and the die. This setting enables normal bending operations, and also allows for normal feeding and unloading operations after the spring lifts the punch.

[0010] Preferably, the bottom of the processing table is fixedly equipped with multiple support legs, and the bottom end of each support leg is fixedly equipped with a base.

[0011] Preferably, a stud is fixedly installed at the top of the guide rod, and a nut is threaded onto the stud. The nut is used to prevent the slider from detaching and to limit its movement.

[0012] Preferably, a positioning sleeve is fixedly installed on the top surface of both the straight punch and the inclined punch. The positioning sleeve has an inner groove that communicates with the outside at its top. A lower pressure plate is detachably installed at the end of the telescopic shaft of the hydraulic cylinder. The lower pressure plate and the inner groove are interlocked. This setting allows for positioning during the pressing operation.

[0013] Preferably, a fixed plate is fixedly installed at the end of the telescopic shaft of the hydraulic cylinder, and the lower pressure plate is detachably installed on the bottom surface of the fixed plate. Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of a processing table, a straight concave die, an oblique concave die, a straight punch, and an oblique punch, enables straight edge and oblique edge bending operations to be performed separately on the same bending machine without changing the molds. This avoids the cumbersome steps of frequently disassembling and installing molds required by traditional bending machines for processing different types of workpieces, and greatly reduces equipment downtime. Especially in the scenario of processing small batches and multiple types of workpieces, it effectively improves production efficiency and achieves the effects of reducing time costs and improving processing continuity.

[0014] 2. This utility model achieves precise guidance and positioning of the punch during its up-and-down movement through the design of a sleeve, guide rod, slider, spring, positioning sleeve, and lower pressure plate. The guide rod restricts the slider to slide only in the vertical direction, preventing the punch from shifting. The insertion and cooperation between the positioning sleeve and the lower pressure plate ensures that the hydraulic cylinder transmits pressure to the punch evenly. The spring stably lifts the punch after bending, enabling normal feeding or unloading operations. This reduces the workpiece bending dimension deviation caused by insufficient die calibration accuracy, thus ensuring workpiece processing quality and improving bending accuracy.

[0015] 3. This utility model enables flexible maintenance and replacement of equipment components through the design of detachable sleeves, detachable hydraulic cylinders, and detachable pressure plates. When the sleeves, hydraulic cylinders, or pressure plates are worn, it is not necessary to replace the entire equipment; only the damaged parts need to be disassembled for repair or replacement. At the same time, the design of support legs and fixed bases enhances the stability of the processing table and prevents the equipment from shaking during processing, which would affect the bending effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; The meanings of the labels in the diagram are as follows: 1. Machining table; 10. Support leg; 11. Fixed base; 12. Straight die; 13. Angled die; 14. Straight punch; 15. Angled punch; 2. Sleeve; 20. Annular groove; 21. Guide rod; 22. Spring; 23. Stud; 24. Nut; 25. Slider; 3. Positioning sleeve; 30. Inner groove; 4. Hydraulic cylinder; 40. Fixed plate; 41. Lower pressure plate; 5. Crossbeam frame. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Please see Figures 1-3 This utility model provides a technical solution: a straight and inclined integrated bending machine, including a processing table 1. A straight die 12 and an inclined die 13 are detachably mounted on the upper surface of the processing table 1. A straight punch 14 and an inclined punch 15 are respectively arranged above the straight die 12 and the inclined die 13. A sleeve 2 is provided at each of the four corners of the straight die 12 and the inclined die 13. An annular groove 20 is provided inside the sleeve 2. A vertically arranged guide rod 21 is fixedly installed at the center of the sleeve 2. A spring 22 is provided inside the annular groove 20 and is wound around the guide rod 21. The straight punch 14 and the inclined die 15 are respectively arranged above the straight die 12 and the inclined die 13. Slider 25 is fixedly installed at each of the four corners of the punch 15. The slider 25 is sleeved on the guide rod 21 and slidably connected to the guide rod 21. The slider 25 is located above the spring 22. A hydraulic cylinder 4 is provided above the straight punch 14 and the oblique punch 15 to drive the punch to move downward for bending operation. Straight edge and oblique edge bending can be realized on the same processing table 1. The guide rod 21 in the sleeve 2 guides the slider 25 to drive the punch to move smoothly. The spring 22 assists the punch to reset. The hydraulic cylinder 4 provides bending power. Different types of bending can be completed without changing the mold, which greatly improves the processing efficiency.

[0018] like Figure 1 and Figure 2 As shown, the sleeve 2 is detachably installed on the processing table 1, and the bottom end of the spring 22 is fixedly installed on the bottom wall of the annular groove 20. When the sleeve 2 is worn, it can be disassembled and replaced separately without disassembling the entire equipment, which reduces maintenance difficulty and cost and ensures long-term stable operation of the equipment.

[0019] In this embodiment, the size of the slider 25 is adapted to the size of the guide rod 21 to ensure that the slider 25 slides along the guide rod 21 without deviation. A crossbeam frame 5 is provided at the hydraulic cylinder 4 position. The hydraulic cylinder 4 is detachably installed on the crossbeam frame 5. The crossbeam frame 5 stably supports the hydraulic cylinder 4, so that the pressure transmission is stable when the hydraulic cylinder 4 drives the punch, avoiding the punch from being skewed and causing bending accuracy deviation, thus ensuring the workpiece processing quality.

[0020] Specifically, the upper part of the spring 22 is located outside the annular groove 20, and the bottom end of the spring 22 abuts against the bottom surface of the slider 25. When the spring 22 is in the normal state, the spring 22 pushes the punch upward, making it convenient for the operator to place and remove the metal sheet. After the hydraulic cylinder 4 presses the punch downward, the spring 22 is compressed into the annular groove 20 to complete the die closing operation of the punch and die, realize the bending operation, and improve the convenience of operation.

[0021] like Figure 1 As shown, multiple support legs 10 are fixedly installed at the bottom of the processing table 1. A fixed base 11 is fixedly installed at the bottom end of the support legs 10. The fixed base 11 enhances the contact stability between the support legs 10 and the ground, prevents the processing table 1 from shaking during the bending process, provides a stable platform for bending operations, and further ensures bending accuracy.

[0022] like Figure 2 and Figure 3 As shown, a stud 23 is fixedly installed at the top of the guide rod 21, and a nut 24 is threaded onto the stud 23. The nut 24 is used to prevent the slider 25 from falling off and to limit its movement. It can limit the slider 25 to prevent it from falling off the top of the guide rod 21 during the sliding process, thus ensuring the safety of the equipment operation.

[0023] In addition, a positioning sleeve 3 is fixedly installed at the center of the top surface of both the straight punch 14 and the inclined punch 15. The positioning sleeve 3 has an inner groove 30 that is connected to the outside at the top. A lower pressure plate 41 is detachably installed at the end of the telescopic shaft of the hydraulic cylinder 4. The lower pressure plate 41 and the inner groove 30 are interlocked to ensure that the hydraulic cylinder 4 acts accurately on the center of the punch when it presses down, so as to avoid the punch being damaged or the workpiece being bent out of standard due to pressure deviation, and improve the bending accuracy.

[0024] It is worth noting that a fixed plate 40 is fixedly installed at the end of the telescopic shaft of the hydraulic cylinder 4, and the lower pressure plate 41 is detachably installed on the bottom surface of the fixed plate 40. When the lower pressure plate 41 is worn or needs to be adapted to different punches, the lower pressure plate 41 can be quickly disassembled and replaced without replacing the entire telescopic shaft component of the hydraulic cylinder 4, thus reducing equipment maintenance costs.

[0025] Finally, it should be noted that the hydraulic cylinder 4, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0026] When using the straight and inclined integrated bending machine of this utility model, ensure that the straight concave die 12, inclined concave die 13 and the upper straight punch 14 and inclined punch 15 that can be detachably installed on the processing table 1 are firmly installed, and that the spring 22 inside the sleeve 2 is in normal condition, and push the punch upward; select the corresponding mold according to the processing requirements. If straight edge bending is required, select the straight concave die 12 and the straight punch 14. If inclined edge bending is required, select the inclined concave die 13 and the inclined punch 15. At the same time, check that the lower pressure plate 41 at the end of the telescopic shaft of the hydraulic cylinder 4 and the inner groove 30 of the positioning sleeve 3 on the top surface of the punch are properly inserted and matched. Place the metal sheet on the corresponding die, start the hydraulic cylinder 4 on the crossbeam frame 5, the extension shaft of the hydraulic cylinder 4 drives the lower pressure plate 41 to move down, the lower pressure plate 41 is embedded in the inner groove 30 of the positioning sleeve 3 and pushes the punch to move down, the four corner sliders 25 of the punch slide along the guide rod 21 inside the sleeve 2, the spring 22 is compressed into the annular groove 20, the punch and die close to complete the bending; After bending is completed, the hydraulic cylinder 4 telescopic shaft is reset, the spring 22 rebounds and pushes the punch upward, the slider 25 rises along the guide rod 21 until the punch returns to its initial position, the processed workpiece is removed, and one processing cycle is completed.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A straight-slant integrated bending machine, comprising a processing table (1), characterized in that: A straight die (12) and a slanted die (13) are detachably mounted on the upper surface of the processing table (1). A straight punch (14) and a slanted punch (15) are respectively provided above the straight die (12) and the slanted die (13). A sleeve (2) is provided at each of the four corners of the straight die (12) and the slanted die (13). An annular groove (20) is provided inside the sleeve (2). A vertically arranged guide rod (21) is fixedly installed at the center of the sleeve (2). A spring (22) is provided, which is wound around the guide rod (21). A slider (25) is fixedly installed at each of the four corners of the straight punch (14) and the oblique punch (15). The slider (25) is sleeved on the guide rod (21) and slidably connected to the guide rod (21). The slider (25) is located above the spring (22). A hydraulic cylinder (4) for driving the punch to move downward to perform bending operation is provided above the straight punch (14) and the oblique punch (15).

2. The straight-slant integrated bending machine according to claim 1, characterized in that: The sleeve (2) is detachably mounted on the processing table (1), and the bottom end of the spring (22) is fixedly mounted on the bottom wall of the annular groove (20).

3. The straight-slant integrated bending machine according to claim 1, characterized in that: The size of the slider (25) is adapted to the size of the guide rod (21), and a crossbeam frame (5) is provided at the hydraulic cylinder (4) position. The hydraulic cylinder (4) can be detachably installed on the crossbeam frame (5).

4. The straight-slant integrated bending machine according to claim 1, characterized in that: The upper half of the spring (22) is located outside the annular groove (20), and the bottom end of the spring (22) abuts against the bottom surface of the slider (25). When the spring (22) is in the normal state, the spring (22) pushes the punch upward. After the hydraulic cylinder (4) squeezes the punch downward, the spring (22) is compressed into the annular groove (20) to complete the mold closing operation of the punch and the die.

5. The straight-slant integrated bending machine according to claim 1, characterized in that: The bottom of the processing table (1) is fixedly equipped with multiple support legs (10), and the bottom end of the support legs (10) is fixedly equipped with a fixed base (11).

6. The straight-inclined integrated bending machine according to claim 1, characterized in that: A stud (23) is fixedly installed at the top of the guide rod (21), and a nut (24) is threaded onto the stud (23). The nut (24) is used to prevent the slider (25) from detaching and to limit its movement.

7. The straight-inclined integrated bending machine according to claim 1, characterized in that: Positioning sleeves (3) are fixedly installed on the top surfaces of the straight punch (14) and the inclined punch (15). The positioning sleeve (3) has an inner groove (30) that is connected to the outside at the top. A lower pressure plate (41) is detachably installed at the end of the telescopic shaft of the hydraulic cylinder (4). The lower pressure plate (41) and the inner groove (30) are interlocked.

8. The straight-slant integrated bending machine according to claim 7, characterized in that: The telescopic shaft end of the hydraulic cylinder (4) is fixedly mounted with a fixed plate (40), and the lower pressure plate (41) is detachably mounted on the bottom surface of the fixed plate (40).

Images