Flattening mechanism for sheet metal part cutting

Abstract

The utility model discloses a sheet metal part cutting flattening mechanism which comprises a machine table, a movable baffle is arranged at the end of the machine table in a sliding mode, a workpiece containing table is arranged on one side of the movable baffle, and a pneumatic flattening plate and a rubber flattening plate with air holes are combined with an air suction pump to achieve top face pressure fixing and bottom face negative pressure adsorption of a sheet metal part. A workpiece top plate on the movable baffle is matched with a jacking air cylinder to jack the workpiece from the side face, and a three-dimensional fixing structure is formed. The workpiece is effectively prevented from deviating and loosening in the cutting process, the cutting precision is accurately guaranteed, and the machining error problem caused by unstable fixing is solved. The cutting edge is matched with the cutting air cylinder and the L-shaped support, the cutting edge synchronously cuts offcut while the pneumatic flattening plate flattens the sheet metal part, and flattening-cutting integration is achieved. The traditional tedious process of flattening and then secondary positioning cutting is avoided, the precision error caused by secondary positioning is reduced, and the machining efficiency of the sheet metal part is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal processing technology, specifically relating to a flattening mechanism for cutting sheet metal parts. Background Technology

[0002] In modern manufacturing, sheet metal processing is a crucial step, widely used in aerospace, automotive manufacturing, and electronic equipment industries. The cutting precision and processing efficiency of sheet metal parts directly affect the quality of subsequent processes and overall production efficiency. During the sheet metal cutting process, the flattening mechanism, as a key component, plays a decisive role in the cutting effect.

[0003] Traditional sheet metal cutting and flattening mechanisms have several shortcomings. Firstly, the stability of the sheet metal parts during flattening is poor, easily leading to displacement or loosening, making it difficult to guarantee cutting accuracy. Most existing flattening devices use simple mechanical pressing methods, resulting in uneven pressure distribution, making them unsuitable for sheet metal parts of different thicknesses and materials. Furthermore, they lack effective adsorption and fixing measures, allowing the sheet metal parts to shift under stress during cutting, affecting cutting quality. Secondly, edge material handling is not automated enough; the cut edges often require manual collection and cleaning, increasing labor intensity, creating a cluttered working environment, and potentially even hindering equipment operation due to edge material accumulation. Utility Model Content

[0004] The purpose of this utility model is to provide a flattening mechanism for cutting sheet metal parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flattening mechanism for cutting sheet metal parts, comprising:

[0006] The machine base has a sliding baffle at its end for placing and pushing sheet metal parts for edge cutting and retraction for loading and unloading. One side of the sliding baffle has a workpiece placement platform for placing and fixing sheet metal parts. The lower side of the machine base has a waste trough through a guide plate for automatically collecting the edge material of the cut sheet metal parts.

[0007] The upper surface of the machine platform is equipped with a pneumatic pressure plate for flattening the sheet metal parts on the workpiece placement platform via a flattening and cutting frame. The upper surface of the pneumatic pressure plate is pneumatically telescopically equipped with a cutting blade for simultaneously cutting the edge material of the sheet metal parts during flattening. The bottom inner side of the flattening and cutting frame is equipped with a cutting base plate for uniformly supporting the workpiece placement platform after it is moved into the flattening and cutting frame.

[0008] Preferably, a cutting groove is provided on one side of the base plate being cut, and a material discharge channel extending to the lower end face of the machine is provided on one side of the cutting groove. The cutting groove provides a cutting path for the cutting blade, and the inclined material discharge channel guides the cutting edge material to fall automatically, avoiding the edge material from being stuck in the cutting area and realizing the initial diversion of the edge material.

[0009] Preferably, one end of the guide plate is fixed to the lower port of the material drop channel and is inclined, and the other end of the guide plate is attached to one side of the end of the waste trough for collecting the automatically falling sheet metal edge material, ensuring that the cut edge material falls accurately into the waste trough along the preset path, avoiding manual intervention and solving the problem of edge material accumulation.

[0010] Preferably, the flattening and cutting frame is provided with a flattening cylinder at the upper inner side, and the bottom end of the flattening cylinder is fixed to the upper end of the pneumatic pressing plate. The lower end surface of the pneumatic pressing plate is provided with a rubber pressing plate with air holes. The pneumatic pressing plate provides uniform flattening force, and the rubber pressing plate with air holes, combined with the suction pump, forms an adsorption force, achieving dual fixation (pressure + adsorption) for sheet metal parts of different thicknesses and materials.

[0011] Preferably, a cutting cylinder is provided at the upper end of the cutting blade, and an L-shaped bracket is fixed through the cutting cylinder. The L-shaped bracket is fixed to one side of the end of the pneumatic pressure plate, and the cutting blade and the cutting groove are perpendicularly aligned, so as to realize the integrated operation of "flattening-cutting", avoid the accuracy error caused by secondary positioning, and improve processing efficiency and cutting accuracy.

[0012] Preferably, the end of the machine tool is provided with a slide groove, and a push cylinder is provided on one side wall inside the slide groove. Guide rods are provided on both sides of the push cylinder to realize the automatic pushing of sheet metal parts to the cutting position and the return loading and unloading, replacing manual handling, improving feeding accuracy and automation, and reducing manual operation errors.

[0013] Preferably, the bottom end of the movable baffle is provided with a movable block that slides in the groove, and one side of the movable block is fixed to one end of the pushing cylinder, while both sides of the movable block move through the guide rod and slide in the groove to ensure that the movable baffle moves in a straight line without deviation, stably pushing the sheet metal part to the workpiece placement table, providing a precise position reference for subsequent flattening and cutting, and ensuring processing consistency.

[0014] Preferably, the workpiece placement platform has an air suction chamber with suction holes at its center. One side of the air suction chamber is connected to an air suction pump installed on the side of the movable baffle through a pipe. The pipe is equipped with an air valve. The air suction chamber generates negative pressure through the air suction pump, which adsorbs the bottom surface of the sheet metal part through the air holes. Combined with the pressure of the top surface of the rubber pressure plate, it forms a two-way fixation from top to bottom, which can adapt to sheet metal parts with complex shapes.

[0015] Preferably, a concave cavity is formed on one side of the movable baffle at the same level as the workpiece placement table surface. A workpiece top plate is movably disposed in the concave cavity. One side of the workpiece top plate is fixed to a clamping cylinder outside the movable baffle, so that the workpiece top plate clamps the sheet metal part on one side of the trimmed material.

[0016] Compared with the prior art, the technical effects and advantages of this utility model are: the flattening mechanism for cutting sheet metal parts,

[0017] By combining a pneumatic pressure plate with a perforated rubber pressure plate and an air pump, pressure is applied to the top surface of the sheet metal part for fixation, while negative pressure is applied to the bottom surface for adsorption. The workpiece top plate on the moving baffle, in conjunction with a clamping cylinder, clamps the workpiece from the side, forming a three-dimensional fixing structure. This effectively prevents workpiece shifting or loosening during cutting, ensuring precise cutting accuracy and solving the problem of processing errors caused by unstable fixing.

[0018] The cutting blade works in conjunction with the cutting cylinder and L-shaped bracket to simultaneously cut the edge material while the pneumatic pressure plate flattens the sheet metal part, achieving integrated "flattening-cutting". This avoids the cumbersome process of flattening first and then positioning and cutting, reduces the accuracy error caused by secondary positioning, and significantly improves the processing efficiency of sheet metal parts.

[0019] The cutting groove of the cutting base plate, together with the material discharge channel, inclined guide plate, and waste chute, forms an automated edge material handling system. Edge materials generated during cutting automatically slide down into the waste chute through the material discharge channel and guide plate, eliminating the need for manual collection and cleaning. This not only reduces the labor intensity of workers but also solves the problem of edge material accumulation affecting equipment operation, optimizes the working environment, and ensures production safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a diagram showing the working state of the cutting and flattening mechanism of this utility model;

[0022] Figure 3 This is a side view of the movable baffle of this utility model;

[0023] Figure 4 This is a top view of the workpiece placement platform of this utility model.

[0024] In the diagram: 1. Machine base; 2. Moving baffle; 3. Workpiece placement table; 4. Flattening and cutting frame; 5. Pneumatic pressure plate; 6. Cutting blade; 7. Cutting base plate; 8. Waste trough; 9. Guide plate; 10. Cutting groove; 11. Discharge channel; 12. Flattening cylinder; 13. Rubber pressure plate; 14. Cutting cylinder; 15. L-shaped bracket; 16. Slide groove; 17. Pushing cylinder; 18. Directional guide rod; 19. Moving block; 20. Suction chamber; 21. Suction pump; 22. Workpiece top plate; 23. Tightening cylinder. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a flattening mechanism for cutting sheet metal parts, comprising:

[0027] Machine base 1, serving as the fundamental support structure of the entire mechanism, is made of high-strength alloy steel. After precision machining and heat treatment, it possesses excellent rigidity and stability, capable of withstanding various forces during processing. A sliding baffle 2 is installed at the end of machine base 1 for placing, pushing, edge-cutting, and repositioning sheet metal parts for loading and unloading. The sliding baffle 2 is made of wear-resistant stainless steel with an anti-slip surface treatment to effectively prevent slippage during sheet metal placement. In actual operation, the operator places the sheet metal part on the sliding baffle 2, and subsequent mechanical actions achieve the pushing, cutting, and repositioning of the sheet metal part for loading and unloading. A workpiece placement platform 3 is located on one side of the sliding baffle 2, which holds and holds the sheet metal part in place. The workpiece placement platform 3 is made of lightweight, high-strength aluminum alloy with a smooth, flat surface, providing a stable placement plane for the sheet metal part. The lower side of the machine 1 is provided with a waste trough 8 through the guide plate 9, which automatically collects the edge material of the cut sheet metal parts. The waste trough 8 is designed with a large capacity and the trough body is detachable, which makes it easy to clean the collected edge material. The guide plate 9 is made of smooth stainless steel plate, which can ensure that the edge material slides down smoothly.

[0028] A pneumatic pressure plate 5 is provided on one side of the upper end face of the machine base 1 via a flattening and cutting frame 4 for flattening sheet metal parts on the workpiece placement table 3. The flattening and cutting frame 4 is welded from high-strength steel and undergoes precise processing and assembly to ensure overall verticality and parallelism, providing stable support for the flattening and cutting operation. The pneumatic pressure plate 5 is made of high-quality aluminum alloy, which is lightweight and high-strength, and can quickly respond to commands from the pneumatic system. A cutting blade 6 is pneumatically telescopically provided on one side of the upper end face of the pneumatic pressure plate 5 for simultaneously cutting the edge material of the sheet metal parts during flattening. The cutting blade 6 is made of high-hardness alloy material and undergoes special edge treatment, giving it good wear resistance and sharpness. A cutting base plate 7 is provided on the inner bottom end of the flattening and cutting frame 4 for uniform support after the workpiece placement table 3 is moved into the flattening and cutting frame 4. The cutting base plate 7 is made of thickened steel plate and its surface is finely ground to ensure flatness, providing a stable support surface for the sheet metal parts.

[0029] A cutting groove 10 is provided on one side of the base plate 7 to be cut. The width and depth of the cutting groove 10 are precisely designed according to the size of the cutting blade 6 to ensure that the cutting blade 6 can smoothly cut in and out. A material discharge channel 11 is inclined on one side of the cutting groove 10 and extends to the lower end face of the machine base 1. During the cutting process, the edge material generated by cutting automatically slides down along the inclined material discharge channel 11 under the action of gravity, avoiding the edge material from being stuck in the cutting area, realizing the initial guidance of edge material, and laying the foundation for subsequent automated collection.

[0030] One end of the guide plate 9 is fixed to the lower port of the discharge chute 11 and is inclined, while the other end of the guide plate 9 is attached to one side of the end of the waste chute 8 for collecting the automatically falling sheet metal edge material. The inclination angle of the guide plate 9 has been scientifically calculated and experimentally verified to ensure that the cut edge material can fall accurately into the waste chute 8 along the preset path, avoiding manual intervention, solving the problem of edge material accumulation, and improving the cleanliness of the working environment and the safety of equipment operation.

[0031] A flattening cylinder 12 is installed on the upper inner side of the flattening and cutting frame 4. The flattening cylinder 12 adopts a high-performance pneumatic component, which has stable thrust and precise stroke control. The bottom end of the flattening cylinder 12 is fixed to the upper end of the pneumatic pressing plate 5, which can drive the pneumatic pressing plate 5 to move up and down. The lower end surface of the pneumatic pressing plate 5 is provided with a rubber pressing plate 13 with air holes. The rubber pressing plate 13 is made of highly elastic and highly wear-resistant rubber material, with evenly distributed air holes, and is connected to the suction pump 21 through a pipe. During the flattening operation, the pneumatic pressing plate 5 provides uniform flattening force, and the rubber pressing plate 13 with air holes, combined with the suction pump 21, forms an adsorption force, achieving dual fixation (pressure + adsorption) for sheet metal parts of different thicknesses and materials. This solves the problems of unstable fixation and displacement in traditional pressing, and improves the stability of the workpiece during cutting.

[0032] A cutting cylinder 14 is installed at the upper end of the cutting blade 6. The cutting cylinder 14 also uses high-precision pneumatic components, which can quickly and stably drive the cutting blade 6 to extend and retract. An L-shaped bracket 15 is fixed through the cutting cylinder 14. The L-shaped bracket 15 is made of high-strength alloy steel and is precision machined and assembled to ensure the installation accuracy of the cutting blade 6. The L-shaped bracket 15 is fixed to one side of the end of the pneumatic pressure plate 5, and the cutting blade 6 is perpendicular to the cutting groove 10. While the pneumatic pressure plate 5 flattens the sheet metal part, the cutting cylinder 14 drives the cutting blade 6 to extend, realizing the integrated operation of "flattening-cutting". This avoids the accuracy error caused by secondary positioning and improves processing efficiency and cutting accuracy.

[0033] The end of the machine tool 1 is provided with a slide groove 16. The slide groove 16 is precision machined and has good straightness and surface finish. A push cylinder 17 is provided on one side wall inside the slide groove 16. The push cylinder 17 adopts a pneumatic component with high thrust and long stroke, which can provide sufficient power to push the moving baffle 2. The push cylinder 17 is provided with directional guide rods 18 on both sides. The directional guide rods 18 adopt a high-precision optical axis and the surface is hard chrome plated, which has good wear resistance and linear motion accuracy.

[0034] The bottom of the movable baffle 2 is provided with a movable block 19 that slides within the slide groove 16. The movable block 19 is made of high-strength wear-resistant material and fits precisely with the slide groove 16. One side of the movable block 19 is fixed to one end of the push cylinder 17, and both sides of the movable block 19 move through the guide rod 18 and slide within the slide groove 16. Under the action of the push cylinder 17, the movable block 19 drives the movable baffle 2 to slide linearly along the guide rod 18 within the slide groove 16, ensuring that the movable baffle 2 moves linearly without deviation, stably pushing the sheet metal part to the workpiece placement table 3, providing a precise positional reference for subsequent flattening and cutting, and ensuring processing consistency.

[0035] A suction chamber 20 with suction holes is located at the center of the end of the workpiece placement platform 3. The design of the suction chamber 20 can evenly distribute negative pressure, ensuring that all parts of the bottom surface of the sheet metal part are effectively adsorbed. A suction pump 21, installed on one side of the movable baffle 2, is connected to one side of the suction chamber 20 via a pipe. The suction pump 21 is a high-performance vacuum pump that can provide stable negative pressure, and an air valve is installed on the pipe. By controlling the opening and closing of the air valve, the adsorption force of the suction chamber 20 can be flexibly controlled. In practical applications, the suction chamber 20 generates negative pressure through the suction pump 21, adsorbing the bottom surface of the sheet metal part through the air holes. Combined with the pressure of the top surface of the rubber pressing plate 13, it forms a two-way fixation, adapting to complex-shaped sheet metal parts and solving the problem of uneven force distribution in traditional single-sided pressing fixation, thus enhancing the stability of the workpiece fixation.

[0036] A recessed cavity is formed on one side of the movable baffle 2, which is at the same level as the workpiece placement table 3. This cavity design allows the workpiece top plate 22 to be stored within it when not in use, without affecting the placement and movement of the sheet metal part. The workpiece top plate 22, made of high-strength steel plate with an anti-slip surface, is movably mounted within the recessed cavity. One side of the workpiece top plate 22 is fixed to a clamping cylinder 23 on the outside of the movable baffle 2. The clamping cylinder 23 is a high-precision cylinder capable of accurately controlling the clamping force. During the edge trimming process, the clamping cylinder 23 drives the workpiece top plate 22 to extend, clamping one side of the sheet metal part. This forms a three-dimensional fixed structure through adhesion to the bottom and pressure against the top surface, particularly addressing lateral forces during edge separation during cutting, preventing workpiece displacement due to unilateral force, and further improving cutting accuracy.

[0037] Specifically, during sheet metal cutting, this mechanism completes the operation through the coordinated cooperation of its components. First, the operator places the sheet metal part on the movable baffle 2. Driven by the push cylinder 17, the movable block 19 at the bottom of the movable baffle 2 slides along the guide rod 18 in the slide groove 16, pushing the sheet metal part to the workpiece placement table 3. At this time, the suction chamber 20 at the center of the end of the workpiece placement table 3 generates negative pressure through the suction pump 21, which adsorbs the bottom surface of the sheet metal part through the air hole. Simultaneously, the workpiece top plate 22 on the movable baffle 2 extends under the action of the clamping cylinder 23, clamping the side of the sheet metal part to achieve initial fixation.

[0038] Next, the cylinder 17 continues to move, causing the movable baffle 2 and the workpiece placement table 3 to move together into the flattening and cutting frame 4. The flattening cylinder 12 at the upper inner side of the flattening and cutting frame 4 drives the pneumatic pressure plate 5 to descend. The rubber pressure plate 13 with air holes on the lower end of the pneumatic pressure plate 5 contacts the top surface of the sheet metal part. While providing a uniform flattening force, the suction pump 21 further enhances the suction force, completing the bidirectional fixation of the sheet metal part.

[0039] While flattening, the cutting cylinder 14 drives the cutting blade 6 to extend. Since the cutting blade 6 is perpendicular to the cutting groove 10 on the cutting base plate 7, the cutting blade 6 cuts the edge material of the sheet metal part along the cutting groove 10. Under the action of gravity, the edge material generated by cutting slides down the material drop channel 11 on one side of the cutting groove 10 to the guide plate 9, and then falls precisely into the waste trough 8 along the inclined surface of the guide plate 9, realizing the automated collection of edge material.

[0040] After cutting, the flattening cylinder 12 drives the pneumatic pressure plate 5 to rise and reset, and the cutting cylinder 14 drives the cutting blade 6 to retract. The pushing cylinder 17 moves in the opposite direction, driving the moving baffle 2 and the workpiece placement table 3 to move back. At this time, the suction pump 21 and the air valve are turned off, and the workpiece top plate 22 retracts under the action of the clamping cylinder 23. The operator can then remove the processed sheet metal part, completing the entire processing flow.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flattening mechanism for cutting sheet metal parts, characterized in that, include: The machine (1) has a sliding baffle (2) at the end for placing and pushing sheet metal parts to perform edge cutting and moving back to load and unload. The side of the sliding baffle (2) has a workpiece placement table (3) for placing and fixing sheet metal parts. The lower side of the machine (1) has a waste trough (8) through a guide plate (9) for automatically collecting the edge material of the cut sheet metal parts. The upper end face of the machine base (1) is provided with a pneumatic pressure plate (5) for flattening the sheet metal parts on the workpiece placement table (3) via a flattening and cutting frame (4). The upper end face of the pneumatic pressure plate (5) is pneumatically telescopically provided with a cutting blade (6) for simultaneously cutting the edge material of the sheet metal parts during flattening. The bottom inner side of the flattening and cutting frame (4) is provided with a cutting base plate (7) for uniformly supporting the workpiece placement table (3) after it is moved into the flattening and cutting frame (4).

2. The flattening mechanism for cutting sheet metal parts according to claim 1, characterized in that: A cutting groove (10) is provided on one side of the cut base plate (7), and a material discharge groove (11) is provided on one side of the cutting groove (10) through the lower end face of the machine base (1).

3. The flattening mechanism for cutting sheet metal parts according to claim 1, wherein: One end of the guide plate (9) is fixed to the lower port side of the material drop channel (11) and is inclined, and the other end of the guide plate (9) is attached to one side of the end of the waste trough (8) for collecting the edge material of the automatically falling sheet metal parts.

4. The flattening mechanism for cutting sheet metal parts according to claim 1, wherein: The flattening and cutting frame (4) is provided with a flattening cylinder (12) on the upper inner side, and the bottom end of the flattening cylinder (12) is fixed on the upper end of the pneumatic pressing plate (5). The lower end surface of the pneumatic pressing plate (5) is provided with a rubber pressing plate (13) with air holes.

5. The flattening mechanism for cutting sheet metal parts according to claim 1, wherein: The upper end of the cutting blade (6) is provided with a cutting cylinder (14), and an L-shaped bracket (15) is fixed through the cutting cylinder (14). The L-shaped bracket (15) is fixed on one side of the end of the pneumatic pressure plate (5), and the cutting blade (6) and the cutting groove (10) are perpendicular to each other.

6. The flattening mechanism for cutting sheet metal parts according to claim 2, wherein: The machine base (1) has a slide groove (16) at its end. A push cylinder (17) is provided on one side wall inside the slide groove (16), and guide rods (18) are provided on both sides of the push cylinder (17).

7. The flattening mechanism for cutting sheet metal parts according to claim 6, wherein: The bottom end of the movable baffle (2) is provided with a movable block (19) that slides in the slide groove (16), and one side of the movable block (19) is fixed to one end of the push cylinder (17), and the two sides of the movable block (19) move through the guide rod (18) and slide in the slide groove (16).

8. The flattening mechanism for cutting sheet metal parts according to claim 1, wherein: The workpiece placement platform (3) has an air suction chamber (20) with suction holes at the center of its end. The air suction chamber (20) is connected to an air suction pump (21) installed on one side of the movable baffle (2) via a pipe, and the pipe is equipped with an air valve.

9. The flattening mechanism for cutting sheet metal parts according to claim 1, wherein: The movable baffle (2) has a concave cavity on one side at the same level as the workpiece placement table (3). A workpiece top plate (22) is movably disposed in the concave cavity. One side of the workpiece top plate (22) is fixed on a clamping cylinder (23) outside the movable baffle (2), so that the workpiece top plate (22) clamps the sheet metal part on one side of the trimmed material.

Images