Downward shearing swing shearing machine

Abstract

A downward shearing swing shearing plate machine comprises a base, a shearing frame, a sliding frame, a rotating seat and a swing frame; the base is provided with a shearing power mechanism and a swing power mechanism; the shearing frame is fixedly arranged on the base, the upper portion of the shearing frame is provided with the sliding frame, the two sides of the sliding frame are connected with the shearing frame through guide rails, the two sides of the sliding frame are hingedly connected with crankshafts, the crankshafts are connected with the shearing power mechanism; the rotating seat is connected with the swing power mechanism, the swing frame is installed on the rotating seat, the lower portion of the swing frame is fixedly provided with a lower tool holder, the lower tool holder is installed with a lower tool, the upper portion of the swing frame is provided with an upper tool holder through a slide, the upper tool holder is installed with an upper tool; the upper tool holder and the sliding frame are connected through a rotary mechanism. The swing shearing plate machine only swings the tool holder part and shears from top to bottom, has low energy consumption, high stability, improves processing efficiency and avoids the phenomenon of plate head sticking.

Description

Technical Field

[0001] This utility model relates to a swing shearing machine for cutting irregularly shaped parts (parallelograms and trapezoids, etc.), and belongs to the technical field of swing shearing machines. Background Technology

[0002] The production of irregularly shaped stamped parts (such as parallelograms, isosceles trapezoids, and right trapezoids) needs to be completed by oscillating shearing equipment.

[0003] CN101439424A discloses a swing shearing device, which includes a mounting base plate, a gear transmission mechanism, a shearing mechanism, an inlet transmission mechanism, and an outlet transmission mechanism. The gear transmission mechanism consists of a servo motor, a gearbox, a driving bevel gear, and a driven disc gear. The servo motor and gearbox are fixed on the base plate. The driven disc gear is horizontally mounted on the base plate via bearings and connected to a shaft via splines. A disc base for the shearing mechanism is fixed on top. The shearing mechanism is mounted on the disc base. The servo motor drives the gearbox to rotate the driving bevel gear. The driving bevel gear meshes with the driven disc gear, allowing the driven disc gear to drive the shearing mechanism to rotate freely relative to the base plate within a range of +45° to -45°.

[0004] CN207103949U discloses a "novel swing shear mechanism for a shearing machine", which includes a shearing machine bed, a base, an upper blade holder, and a lower blade holder. The upper blade holder is provided with an upper blade, and the lower blade holder is provided with a lower blade. It also includes a transmission mechanism for the main force, a lateral clearance adjustment mechanism for the upper and lower blades, a pressing mechanism, an overall swing mechanism, and a clearance elimination mechanism during the swing process. The lower blade holder and the lower blade on it move up and down reciprocally to realize the shearing function.

[0005] Existing oscillating shearing machines have high energy consumption and poor stability because their blade holders (upper and lower blade holders) and frame oscillate as a whole during operation (as disclosed in CN101439424A, "An Oscillating Shearing Device"). The shearing method is from bottom to top (as disclosed in CN207103949U, "A New Type of Oscillating Shearing Mechanism for Shearing Machines"). After the lower blade holder falls, there is a problem of the sheet metal getting stuck (the front end falls downwards). Summary of the Invention

[0006] This invention addresses the shortcomings of existing oscillating shearing machines by providing a downward oscillating shearing machine with low energy consumption, good stability, and high shearing efficiency.

[0007] The downward shearing oscillating shearing machine of this utility model adopts the following technical solution:

[0008] The swing shearing machine includes a base, a shearing frame, a sliding frame, a rotating seat, and a swing frame. The base is equipped with a shearing power mechanism and a swing power mechanism. The shearing frame is fixedly mounted on the base. A sliding frame is located on the upper part of the shearing frame, with guide rails connecting both sides of the sliding frame to the shearing frame. Crankshafts are hinged to both sides of the sliding frame and connected to the shearing power mechanism. The rotating seat is connected to the swing power mechanism, and the swing frame is mounted on the rotating seat. A lower blade holder is fixedly mounted on the lower part of the swing frame, and a lower blade is mounted on the lower blade holder. An upper blade holder is located on the upper part of the swing frame via a slide rail, and an upper blade is mounted on the upper blade holder. The upper blade holder and the sliding frame are connected by a rotary mechanism.

[0009] The shearing frame and the base are an integral structure.

[0010] A buffer mechanism is provided between the shearing frame and the sliding frame. This buffer mechanism includes a buffer spring and a connecting screw. The buffer spring is fitted onto the connecting screw, which is connected to the sliding frame and has a nut block. The buffer spring is positioned between the shearing frame and the nut block on the connecting screw, and the nut block presses the buffer spring against the shearing frame. The buffer spring provides a cushioning effect when the sliding frame moves up and down.

[0011] The shearing power mechanism includes a shearing motor, a shearing clutch, a coupling, and a shearing drive shaft connected in sequence, with the crankshaft connected to the shearing drive shaft.

[0012] The swing power mechanism includes a swing motor, a swing clutch, a swing shaft, and a transmission mechanism connected and mounted sequentially on the base. The transmission mechanism includes a pinion gear and a large gear. The pinion gear is mounted on the swing shaft, and the large gear is mounted on the rotating base. The pinion gear meshes with the large gear. The swing motor drives the swing shaft to rotate via the swing clutch, and then drives the rotating base to rotate via gear transmission.

[0013] The rotary mechanism includes a rotary shaft connected to the upper tool post and a bushing mounted on the sliding frame. The rotary shaft is coaxial with the rotating seat and is installed in the bushing. The rotary shaft can be installed in the bushing via bearings. The rotary shaft can both drive the upper tool post to rise and fall together when the sliding frame rises and falls, thus connecting the sliding frame and the upper tool post, and it can also follow the rotation of the upper tool post when it rotates, thus assisting the rotation of the upper tool post.

[0014] The sliding frame is equipped with an annular guide rail coaxial with the rotary seat, and the upper tool post is connected to the annular guide rail via a slider. The connection between the tool post and the annular guide rail improves stability during rotation. Multiple sets of annular guide rails can be arranged concentrically.

[0015] The shearing power mechanism drives the sliding frame and upper blade holder to move up and down via a crankshaft, achieving closed shearing with the upper and lower blades. The lower blade holder does not move up and down, supporting the sheet metal to prevent sagging. The oscillating power mechanism drives the rotary seat to rotate, causing the oscillating frame on the rotary seat, along with its upper and lower blade holders, to oscillate at an angle. During operation, the shearing power mechanism and the oscillating power mechanism operate simultaneously. The rotary seat, oscillating frame, upper blade holder, and lower blade holder first oscillate to the required positions according to the shearing requirements, then the sliding frame and upper blade holder fall, closing the upper and lower blades and completing the shearing action.

[0016] This utility model has the following features:

[0017] 1. Only the tool holder (upper and lower tool holders) swings, reducing weight and inertia, resulting in lower energy consumption and improved stability. Compared with existing shearing machines that swing as a whole, this improves processing efficiency.

[0018] 2. The shearing method is from top to bottom, which avoids the problem of the sheet metal sticking to the head after the lower blade of the existing swing shearing machine falls. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the downward shearing swing shearing machine of this utility model.

[0020] Figure 2 yes Figure 1 Top view.

[0021] The components are: 1. Shearing motor, 2. Shearing clutch, 3. Coupling, 4. Base, 5. Rotary seat, 6. Shearing drive shaft, 7. Shearing frame, 8. Crankshaft, 9. Lower blade holder, 10. Slide mechanism, 11. Upper blade holder, 12. Linear guide rail, 13. Buffer spring, 14. Circular track, 15. Rotary shaft, 16. Connecting screw, 17. Sliding frame, 18. Upper blade, 19. Lower blade, 20. Swing frame, 21. Swinging motor, 22. Swinging clutch. Detailed Implementation

[0022] like Figure 1 and Figure 2 As shown, the downward shearing swing shearing machine of this utility model includes a base 4, a shearing frame 7, a sliding frame 17, a rotating seat 5, a swing frame 20, a shearing power mechanism, and a swing power mechanism.

[0023] See Figure 1The shearing frame 7 is fixedly mounted on the base 4, or the two can be an integral structure. A sliding frame 17 is mounted on the upper part of the shearing frame 7. Both sides of the sliding frame 17 are connected to the shearing frame 7 via linear guide rails 12, and the sliding frame 17 is connected to the shearing power mechanism via a crankshaft 8. Both sides of the sliding frame 17 are hinged to the upper part of the crankshaft 8 via hinge pins. The shearing power mechanism is mounted on the base 4. A buffer spring 13 is mounted on the top of the shearing frame 7. The buffer spring 13 is fitted onto a connecting screw 16, which is connected to the sliding frame 17 and extends beyond the top of the shearing frame 7. A nut block is mounted on the connecting screw 16. The buffer spring 13 is positioned between the top of the shearing frame 7 and the nut block on the connecting screw 16, pressing the buffer spring 13 against the shearing frame 7. The shearing power mechanism drives the sliding frame 17 to move up and down on the linear guide rails 12 via the crankshaft 8, and the buffer spring 13 buffers the movement of the sliding frame 17.

[0024] The shearing power mechanism includes a shearing motor 1, a shearing clutch 2, a coupling 3, and a shearing drive shaft 6 connected in sequence. Two crankshafts 8 are connected to the shearing drive shaft 6.

[0025] The rotating base 5 is connected to the swing power mechanism, which is mounted on the base 4. The swing frame 20 is mounted on the rotating base 5. A lower tool holder 9 is fixedly mounted on the lower part of the swing frame 20, and a lower tool 19 is mounted on the lower tool holder 9. An upper tool holder 11 is mounted on the upper part of the swing frame 20 via a slide rail 10, and an upper tool 18 is mounted on the lower part of the upper tool holder 11. The upper tool holder 11 is connected to the sliding frame 17 via a rotary mechanism, which includes a rotary shaft 15 and a bushing. The bushing is fixedly mounted on the sliding frame 17, and the rotary shaft 15 is mounted in the bushing via a bearing and connected to the upper tool holder 11. The rotary shaft 15 is coaxial with the rotating base 5. The rotary shaft 15 can both drive the upper tool holder 11 to rise and fall together when the sliding frame 17 rises and falls, thus connecting the sliding frame 17 and the upper tool holder 11, and can also follow the rotation of the upper tool holder 11 when it rotates, thus stabilizing the rotation of the upper tool holder 11.

[0026] The bottom of the sliding frame 17 is provided with an annular guide rail 14 coaxial with the rotary seat 5, and the upper tool holder 11 is connected to the annular guide rail 14 via a slider. The connection between the upper tool holder 11 and the annular guide rail 14 improves the stability when rotating. Multiple sets of annular guide rails 14 can be arranged concentrically.

[0027] The oscillating power mechanism drives the rotating seat 5 to rotate, and the oscillating frame 20 and its upper and lower blade holders 11 and 9 rotate together with the rotating seat 5. When the oscillation reaches the shearing position, it stops, and then the sliding frame 17 is driven by the shearing motor 1 to run. The sliding frame 17 drives the upper blade holder 11 to move down along the slide rail 10, so that the lower blade 19 closes with the upper blade 18, and shears the sheet material.

[0028] See Figure 2The swing power mechanism includes a swing motor 21, a swing clutch 22, a swing shaft, and a transmission mechanism. The swing motor 21, swing clutch 22, and swing shaft are all mounted on the base 5 and connected sequentially. The transmission mechanism is a gear transmission mechanism, including a pinion and a large gear. The pinion is mounted on the swing shaft, and the large gear is mounted on the rotating base 5, with the pinion meshing with the large gear. The swing motor 21 drives the swing shaft to rotate via the swing clutch 22, and then drives the rotating base 5 to rotate via the gear transmission.

[0029] The operation process of the above-mentioned oscillating shearing machine is as follows.

[0030] The shearing motor 1 and the swing motor 21 can start and operate individually or simultaneously. The swing motor 21 drives the rotary seat 5, swing frame 20, upper blade holder 11, and lower blade holder 9 to rotate together. Simultaneously, the upper blade holder 11 rotates around the rotary shaft 15. According to the shearing requirements, the blade holder section (swing frame 20, upper blade holder 11, and lower blade holder 9) swings to the required angle and then stops rotating, realizing the swing function of the blade holder section. The shearing motor 1 drives the shearing transmission shaft 6 to rotate through the shearing clutch 2 and coupling 3. The shearing transmission shaft 6 then drives the sliding frame 17 to move up and down along the linear guide rail 12 via the crankshaft 8, realizing the shearing function. The speed of the swing function is greater than the speed of the shearing function. That is to say, only after the rotary seat 5 and the blade holder section swing to the required angle can the sliding frame 17 drive the upper blade holder 11 to fall, causing the upper blade 18 and lower blade 19 to close, completing the shearing action and realizing the shearing of irregularly shaped plates (trapezoidal / parallelogram, etc.).

[0031] The above-mentioned swing shearing machine only has the upper blade holder 11 moving up and down, while the lower blade holder 9 does not move up and down, which can support the plate and prevent the plate from sagging.

Claims

1. A downward-cutting oscillating shearing machine, characterized in that: It includes a base, a shearing frame, a sliding frame, a rotating seat, and a swing frame. The base is equipped with a shearing power mechanism and a swing power mechanism. The shearing frame is fixedly mounted on the base. The upper part of the shearing frame is equipped with a sliding frame. Both sides of the sliding frame are connected to the shearing frame via guide rails. Crankshafts are hinged to both sides of the sliding frame and connected to the shearing power mechanism. The rotating seat is connected to the swing power mechanism. The swing frame is mounted on the rotating seat. The lower part of the swing frame is fixedly equipped with a lower blade holder, on which a lower blade is mounted. The upper part of the swing frame is equipped with an upper blade holder via a slide rail, on which an upper blade is mounted. The upper blade holder and the sliding frame are connected by a rotary mechanism.

2. The downward shearing oscillating shearing machine according to claim 1, characterized in that: The shearing frame and the base are an integral structure.

3. The downward shearing oscillating shearing machine according to claim 1, characterized in that: A buffer mechanism is provided between the shear frame and the sliding frame. The buffer mechanism includes a buffer spring and a connecting screw. The buffer spring is fitted onto the connecting screw, which is connected to the sliding frame and is provided with a nut block. The buffer spring is located on the connecting screw between the shear frame and the nut block, and the nut block presses the buffer spring onto the shear frame.

4. The downward shearing oscillating shearing machine according to claim 1, characterized in that: The shearing power mechanism includes a shearing motor, a shearing clutch, a coupling, and a shearing drive shaft connected in sequence, with the crankshaft connected to the shearing drive shaft.

5. The downward shearing oscillating shearing machine according to claim 1, characterized in that: The swing power mechanism includes a swing motor, a swing clutch, a swing shaft, and a transmission mechanism connected and installed in sequence on the base. The transmission mechanism includes a pinion gear and a large gear. The pinion gear is installed on the swing shaft, and the large gear is installed on the rotating seat. The pinion gear meshes with the large gear.

6. The downward shearing oscillating shearing machine according to claim 1, characterized in that: The rotary mechanism includes a rotary shaft connected to the upper tool post and a bushing disposed on the sliding frame. The rotary shaft is coaxial with the rotating seat and is installed in the bushing.

7. The downward shearing oscillating shearing machine according to claim 1, characterized in that: The sliding frame is equipped with an annular guide rail coaxial with the rotary seat, and the upper tool post is connected to the annular guide rail via a slider.

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