A shearing mechanism for a shearing machine

Abstract

This utility model discloses a shearing mechanism for a shearing machine, relating to the technical field of shearing machines. It includes a machine base, a feeding platform mounted on one side of the machine base, a lower cutter fixedly connected to the feeding platform, a feeding port on the machine base, a lifting platform disposed within the machine base, an upper cutter mounted at the bottom of the lifting platform, and a drive assembly including a first motor mounted on the machine base. A square slot is provided on the lifting platform. This utility model features a reasonable design structure. The first motor drives a cam to rotate, causing the lifting platform to descend under its own weight, allowing the upper cutter to abut against the shearing position of the sheet metal. Subsequently, the cam protrusion gradually applies pressure to complete the shearing. This progressive shearing mode of "contact first, then pressure" avoids damage to the edge of the sheet metal from instantaneous impact, effectively reducing burrs, deformation, and micro-cracks on the cut surface, significantly improving the cutting quality of the sheet metal. It is particularly suitable for industries with high processing precision requirements, such as aerospace, automotive, and precision machinery.

Description

Technical Field

[0001] This utility model relates to the field of shearing machine technology, specifically a shearing mechanism for a shearing machine. Background Technology

[0002] A shearing machine is a machine that uses one blade to reciprocate linearly relative to another blade to shear sheet metal. It utilizes a moving upper blade and a fixed lower blade, with a suitable blade gap, to apply shearing force to metal sheets of various thicknesses, causing the sheet metal to break and separate to the required dimensions. Shearing machines belong to the category of forging and pressing machinery, primarily used in the metal processing industry. Their products are widely used in aerospace, light industry, metallurgy, chemical industry, construction, shipbuilding, automotive, power, electrical appliances, decoration, and other industries, providing the necessary specialized machinery and complete sets of equipment.

[0003] Chinese patent CN219541864U discloses a shearing mechanism for a hydraulic shearing machine. It controls the downward pressing of the blade holder by driving a telescopic rod through a drive cylinder. The adjustment of the second telescopic rod ensures that the adjustment of the blade holder does not affect the device on the slide rod, thereby enabling the entire device to shear the sheet metal. The clamping frame on the protective box strengthens the placement of the shearing blade and improves the working efficiency of the entire device.

[0004] The above-mentioned solution uses a cylinder to drive the blade holder to directly press down and shear the sheet metal. This relies on instantaneous impact force to cut the sheet metal, which can cause significant deformation, burrs, or micro-cracks on the cut surface of the sheet metal, thus affecting the cutting quality. Therefore, we provide a shearing mechanism for a shearing machine to solve these problems. Utility Model Content

[0005] 1) Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shearing mechanism for a shearing machine.

[0007] (ii) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a shearing mechanism for a shearing machine, comprising:

[0009] The machine tool has a feeding platform installed on one side, a lower cutter fixedly connected to the feeding platform, and a feeding port opened on the machine tool.

[0010] A lifting platform is installed inside the machine base, and an upper cutting tool is installed at the bottom of the lifting platform.

[0011] The drive assembly includes a first motor mounted on the machine base, a square slot being provided on the lifting platform, and a cam being mounted on the output shaft of the first motor, with the cam located within the square slot.

[0012] The synchronization component, located inside the machine, is used to apply the same thrust to both ends of the lifting platform as to the middle of the lifting platform.

[0013] A limiting component, located inside the feed port, is used to limit the length of material extending between the upper and lower cutters.

[0014] The pressing assembly, located on the lifting platform, is used to press the material in the shearing process.

[0015] Furthermore, guide grooves are provided on both sides of the lifting platform, and guide blocks are fixedly connected to both sides of the inner wall of the machine platform, with the guide grooves slidably connected to the guide blocks.

[0016] Furthermore, the synchronization component includes a rotating shaft rotatably connected to the machine tool, with gears fixedly connected to both ends of the rotating shaft, and two racks fixedly connected to the lifting platform, with the racks meshing with the gears.

[0017] Furthermore, the limiting component includes a control box fixedly connected to the feed port, the control box having a moving groove, a second motor mounted on the control box, a lead screw mounted on the output shaft of the second motor, the lead screw being rotatably connected to the moving groove, a moving block being threadedly connected to the lead screw, the moving block being slidably connected to the moving groove, and a stop plate being fixedly connected to the moving block.

[0018] Furthermore, the pressing assembly includes a fixed base fixedly connected to the lifting platform, a slide rod slidably connected to the fixed base, a pressure plate and a fixed plate fixedly connected to both ends of the slide rod respectively, and springs are sleeved on both ends of the slide rod, with the two springs respectively fixedly connected to the fixed base and the pressure plate and the fixed base and the fixed plate respectively.

[0019] Furthermore, an inclined plate is fixedly connected to the feeding platform, and a collection box is placed inside the feeding port, with the collection box located below one end of the inclined plate.

[0020] (iii) Beneficial effects:

[0021] Compared with existing technologies, the shearing mechanism of this shearing machine has the following advantages:

[0022] I. This utility model uses a first motor to drive the cam to rotate, causing the lifting platform to descend under its own weight, allowing the upper cutter to abut against the cutting position of the sheet metal. Then, the cam protrusion gradually applies pressure to complete the cutting. This progressive shearing mode of "contact first, then apply pressure" avoids damage to the edge of the sheet metal by instantaneous impact force, effectively reducing burrs, deformation and micro-cracks on the cut surface, and significantly improving the cutting quality of the sheet metal. It is especially suitable for industries with high processing precision requirements such as aerospace, automotive and precision machinery.

[0023] Second, this utility model utilizes the meshing of rack and gear to drive the rotating shaft to rotate when the lifting platform descends, so that both ends of the lifting platform receive the same thrust as the middle part. This ensures that the upper cutter presses down synchronously at all parts during the cutting process, avoiding misalignment of the sheet metal and skewed cuts caused by force deviation, and ensuring the consistency of the overall cutting quality.

[0024] Third, this utility model uses a second motor to drive a lead screw to adjust the position of the abutment plate, which can quickly set the cutting length of the sheet material without repeated manual measurement, thus improving the efficiency and accuracy of quantitative cutting. It is suitable for multi-specification production scenarios that require frequent adjustment of cutting dimensions. The spring force in the pressing assembly realizes the automatic pressing and resetting of the pressing plate. When the lifting platform descends, the fixed seat drives the slide rod to move synchronously, so that the pressing plate quickly presses the sheet material, avoiding the displacement of the sheet material during the cutting process. This not only ensures the cutting accuracy but also reduces manual operation and improves the overall processing efficiency. Attached Figure Description

[0025] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0026] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0027] Figure 3 The three-dimensional representation of this utility model Figure 3 ;

[0028] Figure 4 This is a schematic diagram of the limiting component of this utility model.

[0029] In the diagram: 1. Machine base; 2. Feeding platform; 3. Lifting platform; 4. Guide groove; 5. Guide block; 6. Fixed seat; 7. Slide rod; 8. Pressure plate; 9. Spring; 10. Fixed plate; 11. Upper cutter; 12. Discharge port; 13. Inclined plate; 14. Square groove; 15. First motor; 16. Cam; 17. Rack; 18. Rotating shaft; 19. Gear; 20. Collection box; 21. Control box; 22. Second motor; 23. Moving groove; 24. Lead screw; 25. Moving block; 26. Support plate. Detailed Implementation

[0030] 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.

[0031] like Figure 1-4As shown, this utility model provides a technical solution: a shearing mechanism for a shearing machine, including a machine base 1, a lifting platform 3, a drive assembly, a synchronization assembly, a limit assembly, and a pressing assembly.

[0032] A feeding platform 2 is installed on one side of the machine base 1. A lower cutter is fixedly connected to the feeding platform 2. The machine base 1 has a feeding port 12. The top of the feeding platform 2 is flat. A screw-type feeding assembly can be added to push the board through the feeding platform 2 into the machine base 1 for cutting. The board can also be fed by pushing it manually.

[0033] The lifting platform 3 is installed inside the machine base 1. An upper cutter 11 is installed at the bottom of the lifting platform 3. The upper cutter 11 is matched with the lower cutter. After the upper cutter 11 descends, it cooperates with the lower cutter to cut the plate. Guide grooves 4 are opened on both sides of the lifting platform 3. Guide blocks 5 are fixedly connected to both sides of the inner wall of the machine base 1. The guide grooves 4 are slidably connected to the guide blocks 5. The stability of the lifting platform 3 is improved by the guidance of the guide grooves 4 and the guide blocks 5.

[0034] In this embodiment, the drive assembly includes a first motor 15 mounted on the machine base 1, a square slot 14 is provided on the lifting platform 3, and a cam 16 is mounted on the output shaft of the first motor 15, with the cam 16 located in the square slot 14.

[0035] The output shaft of the first motor 15 drives the cam 16 to rotate, and after the protrusion of the cam 16 leaves the inner top wall of the square groove 14, the lifting platform 3 moves downward under its own weight. At this time, there is no downward thrust on the lifting platform 3, so the upper cutter 11 on the lifting platform 3 will abut against the cutting position of the plate and continue to rotate the cam 16, so that the protrusion of the cam 16 gradually abuts against the inner bottom wall of the square groove 14, thereby completing the downward movement of the lifting platform 3 and completing the cutting operation of the upper cutter 11 on the plate. By adopting the method of the upper cutter 11 contacting the plate first and then applying pressure to cut it, the burrs on the cutting surface can be effectively reduced.

[0036] In this embodiment, the synchronization component is disposed inside the machine base 1 and is used to apply the same thrust to both ends of the lifting platform 3 as to the middle of the lifting platform 3. The synchronization component includes a rotating shaft 18 rotatably connected inside the machine base 1. Both ends of the rotating shaft 18 are fixedly connected to gears 19. Two racks 17 are fixedly connected to the lifting platform 3, and the racks 17 mesh with the gears 19.

[0037] When the lifting platform 3 moves downward, the meshing of the rack 17 and the gear 19 drives the rotating shaft 18 to rotate, so that there is also a lifting thrust at both ends of the lifting platform 3, ensuring the shearing quality of the plate.

[0038] In this embodiment, a limiting component is disposed within the discharge port 12 to limit the length of the material extending between the upper cutter 11 and the lower cutter. The limiting component includes a control box 21 fixedly connected within the discharge port 12. A moving groove 23 is provided on the control box 21. A second motor 22 is installed on the control box 21. A lead screw 24 is installed on the output shaft of the second motor 22, and the lead screw 24 is rotatably connected within the moving groove 23. A moving block 25 is threadedly connected to the lead screw 24, and the moving block 25 is slidably connected within the moving groove 23. An abutment plate 26 is fixedly connected to the moving block 25.

[0039] When the cutting length needs to be adjusted, the output shaft of the second motor 22 can drive the lead screw 24 to rotate and the moving block 25 to move in the moving groove 23, thereby adjusting the position of the abutment plate 26. When the plate is fed, one end of the plate will abut against the abutment plate 26 to complete the quantitative cutting of the plate.

[0040] In this embodiment, the pressing assembly is set on the lifting platform 3 and is used to press the material in the shearing state. The pressing assembly includes a fixed seat 6 fixedly connected to the lifting platform 3, a slide rod 7 slidably connected to the fixed seat 6, a pressing plate 8 and a fixed plate 10 fixedly connected to both ends of the slide rod 7 respectively, and springs 9 are sleeved on both ends of the slide rod 7. The two springs 9 are fixedly connected to the fixed seat 6 and the pressing plate 8 and the fixed seat 6 and the fixed plate 10 respectively.

[0041] When the lifting platform 3 moves downward, it will drive the slide bar 7 to move synchronously through the fixed seat 6. At this time, the pressing plate 8 will abut against the plate. One spring 9 is in a compressed state and the other spring 9 is in a stretched state. The pressing plate 8 is pressed and the pressing plate 8 is quickly reset by relying on the elastic force of the spring 9.

[0042] An inclined plate 13 is fixedly connected to the feeding platform 2. A collection box 20 is placed inside the feeding port 12, and the collection box 20 is located below one end of the inclined plate 13. After the board is cut, it will fall onto the inclined plate 13. The inclined plate 13 is used to guide the cut part and collect the cut part in the collection box 20.

[0043] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shearing mechanism for a shearing machine, characterized in that, include: A machine base (1) is provided with a feeding platform (2) installed on one side of the machine base (1). A lower cutter is fixedly connected to the feeding platform (2). A feeding port (12) is provided on the machine base (1). A lifting platform (3) is set inside the machine base (1), and an upper cutter (11) is installed at the bottom of the lifting platform (3). The drive assembly includes a first motor (15) mounted on the machine base (1), a square slot (14) is provided on the lifting platform (3), and a cam (16) is mounted on the output shaft of the first motor (15), and the cam (16) is located in the square slot (14); A synchronization component is installed inside the machine base (1) to apply the same thrust to both ends of the lifting platform (3) as to the middle of the lifting platform (3); A limiting component is provided inside the feed port (12) to limit the length of the material extending between the upper cutter (11) and the lower cutter; The pressing assembly is set on the lifting platform (3) and is used to press the material in the shearing state.

2. The shearing mechanism of a shearing machine according to claim 1, characterized in that: The lifting platform (3) has guide grooves (4) on both sides, and guide blocks (5) are fixedly connected to both sides of the inner wall of the machine platform (1), and the guide grooves (4) are slidably connected to the guide blocks (5).

3. The shearing mechanism of a shearing machine according to claim 1, characterized in that: The synchronization component includes a rotating shaft (18) rotatably connected to the machine base (1), with gears (19) fixedly connected to both ends of the rotating shaft (18), and two racks (17) fixedly connected to the lifting platform (3), with the racks (17) meshing with the gears (19).

4. The shearing mechanism of a shearing machine according to claim 1, characterized in that: The limiting component includes a control box (21) fixedly connected to the feed port (12). The control box (21) has a moving groove (23). A second motor (22) is installed on the control box (21). A lead screw (24) is installed on the output shaft of the second motor (22). The lead screw (24) is rotatably connected to the moving groove (23). A moving block (25) is threadedly connected to the lead screw (24). The moving block (25) is slidably connected to the moving groove (23). An abutment plate (26) is fixedly connected to the moving block (25).

5. The shearing mechanism of a shearing machine according to claim 1, characterized in that: The pressing assembly includes a fixed seat (6) fixedly connected to the lifting platform (3), a sliding rod (7) slidably connected to the fixed seat (6), a pressing plate (8) and a fixing plate (10) fixedly connected to both ends of the sliding rod (7), and springs (9) sleeved on both ends of the sliding rod (7), and the two springs (9) are fixedly connected to the fixed seat (6) and the pressing plate (8) and the fixed seat (6) and the fixing plate (10) respectively.

6. The shearing mechanism of a shearing machine according to claim 1, characterized in that: An inclined plate (13) is fixedly connected to the feeding platform (2), and a collection box (20) is placed inside the feeding port (12), with the collection box (20) located below one end of the inclined plate (13).

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