Plate shearing mechanism for plate shearing machine

Abstract

The plate shearing mechanism for the plate shearing machine comprises a supporting frame, an upper blade and a lower blade, and the ends, away from cutting edges, of the upper blade and the lower blade are connected with a first fixing block and a second fixing block respectively. Cavities are formed in the fixed block I and the fixed block II; a clamping block is connected in the cavity; connecting grooves matched with the clamping blocks are formed in the two ends of the upper blade and the two ends of the lower blade. The connecting grooves are formed in the two ends of the blade, the motor drives the lead screw to rotate, the upper ends of the clamping blocks move into the connecting grooves to fix the blade, only the motor needs to be started to enable the clamping blocks to move towards the outer side during replacement, the blade dismounting and mounting process is simple and convenient, and the blade is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of shearing machines, in particular to a shearing mechanism for shearing machines. Background Art

[0002] A shearing machine is a machine that uses one blade to make reciprocating linear motion relative to another blade to shear plates. It uses a moving upper blade and a fixed lower blade, and adopts a reasonable blade gap to apply shearing force to metal plates of various thicknesses, so that the plates can be broken and separated according to the required size. A shearing machine is a type of forging machinery. Its main function is in the metal processing industry. Its products are widely used in aviation, light industry, metallurgy, chemical industry, construction, shipbuilding, automobile, electricity, electrical appliances, decoration and other industries to provide the required special machinery and complete equipment.

[0003] The blades on the existing shearing machines are generally fixed, which is inconvenient to replace, or difficult to replace and difficult to fix. Utility Model Content

[0004] The utility model aims to solve the problem of blade replacement of scissors machines in the prior art and proposes a shearing mechanism for shearing machines.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shearing mechanism for a shearing machine comprises a support frame, an upper blade and a lower blade, wherein the ends of the upper blade and the lower blade away from the blade edge are respectively connected to a fixing block 1 and a fixing block 2; a cavity is provided on the fixing block 1 and the fixing block 2; a clamping block is connected in the cavity; and connecting grooves matching the clamping blocks are provided at both ends of the upper blade and the lower blade.

[0007] Preferably, a screw rod is connected to the lower end of the clamping block; the screw rod is provided with threads; and the threads at both ends of the screw rod are opposite; one end of the screw rod is connected to a motor; and the screw rod is driven to rotate by the motor.

[0008] Preferably, two clamping blocks are provided, and the two clamping blocks are arranged at both ends of the screw rod.

[0009] Preferably, guide rods are connected to both sides of the support frame; sliders are connected to one or both ends of the fixed block; and the sliders are sleeved on the outside of the guide rods.

[0010] Preferably, fixing devices are connected to both sides of the support frame; the fixing devices include an electric telescopic rod and a clamping plate; the two clamping plates are arranged between the two electric telescopic rods; and the clamping plates are driven to move relative to each other by the electric telescopic rod.

[0011] Preferably, the upper end of the support frame is connected to a cylinder; the lower end of the cylinder is fixedly connected to the upper end of the fixed block; and the upper blade is driven to move up and down by the cylinder.

[0012] Preferably, the lower end of the second fixing block is connected with a shock absorbing mechanism; the shock absorbing mechanism comprises a spring; the upper end of the spring is fixedly connected to the lower end of the second fixing block.

[0013] Compared with the prior art, the utility model provides a shearing mechanism for a shearing machine, which has the following beneficial effects:

[0014] 1. The shearing machine uses a shearing mechanism, which sets connecting grooves at both ends of the blade, and then drives the lead screw to rotate through the motor, so that the upper end of the clamping block moves into the connecting groove to fix the blade. When replacing, you only need to start the motor to move the clamping block outward. The disassembly and assembly process of the blade is simple and convenient, which is convenient for replacing the blade.

[0015] 2. The shearing mechanism of the shearing machine is provided with a shock absorbing device at the lower end of the lower blade to provide a buffer during cutting, so as to avoid the excessive cracks in the cutting part of the plate caused by the large pressure of the blade moving downward quickly.

[0016] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure inside the fixed block of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the blade in the utility model;

[0020] Figure 4 It is a structural schematic diagram of another embodiment of the utility model.

[0021] In the figure: 1 support frame, 11 upper blade, 12 lower blade, 13 connecting groove, 14 guide rod, 15 cylinder, 20 cavity, 211 fixed block 1, 212 fixed block, 22 clamping block, 23 screw rod, 24 motor, 25 slider, 31 electric telescopic rod, 32 clamping plate, 4 spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Embodiment 1:

[0025] Reference Figure 1-2 A shearing mechanism for a shearing machine includes a support frame 1, an upper blade 11 and a lower blade 12, wherein the ends of the upper blade 11 and the lower blade 12 away from the blade are respectively connected with a fixing block 1 211 and a fixing block 2 212; the fixing block 1 211 and the fixing block 2 212 are provided with a cavity 20; a clamping block 22 is connected in the cavity 20; a screw rod 23 is connected to the lower end of the clamping block 22; the screw rod 23 is provided with a thread; and the threads at both ends of the screw rod 23 are opposite; two clamping blocks 22 are provided, and the two clamping blocks 22 are provided at both ends of the screw rod 23; one end of the screw rod 23 is connected with a motor 24; the screw rod 23 is driven to rotate by the motor 24, and the ends of the upper blade 11 and the lower blade 12 are provided with a connecting groove 13 matching the clamping block 22. The screw rod 23 rotates to drive the two clamping blocks 22 to move relative to each other, so that the clamping blocks 22 move to the two ends of the blade and fix the blade.

[0026] Embodiment 2:

[0027] Based on the above embodiments, Figure 2 The support frame 1 is connected to guide rods 14 on both sides; the fixed block 211 is connected to sliders 25 at both ends; the slider 25 is sleeved on the outside of the guide rod 14; the upper end of the support frame 1 is connected to a cylinder 15; the lower end of the cylinder 15 is fixedly connected to the upper end of the fixed block 211; the upper blade 11 is driven to move up and down by the cylinder 15; while the cylinder 15 drives the fixed block 211 to move up and down, the two sliders 25 slide on the guide rod 14 to prevent the upper blade 11 from tilting when moving.

[0028] Embodiment three:

[0029] Based on the above embodiments, Figure 2 , the support frame 1 is connected with fixing devices on both sides; the fixing device includes an electric telescopic rod 31 and a clamping plate 32; the two clamping plates 32 are arranged between the two electric telescopic rods 31; the clamping plates 32 are driven to move relative to each other through the electric telescopic rod 31; through the clamping plates.

[0030] Embodiment 4:

[0031] Based on the above embodiments, Figure 3 The lower end of the fixed block 212 is connected with a shock absorbing mechanism; the shock absorbing mechanism includes a spring 4; the upper end of the spring 4 is fixedly connected to the lower end of the fixed block 212, and when the blade is cutting, a spring force is provided for buffering, which can play a shock absorbing role and reduce damage to the blade.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shearing mechanism for a shearing machine, comprising a support frame (1), an upper blade (11) and a lower blade (12), characterized in that: The ends of the upper blade (11) and the lower blade (12) away from the blade edge are respectively connected to a fixing block 1 (211) and a fixing block 2 (212); a cavity (20) is provided on the fixing block 1 (211) and the fixing block 2 (212); a clamping block (22) is connected in the cavity (20); and connecting grooves (13) matching the clamping block (22) are provided at both ends of the upper blade (11) and the lower blade (12).

2. A shearing mechanism for a shearing machine according to claim 1, characterized in that: The lower end of the clamping block (22) is connected to a screw rod (23); the screw rod (23) is provided with a thread; and the threads at both ends of the screw rod (23) are opposite; one end of the screw rod (23) is connected to a motor (24); the screw rod (23) is driven to rotate by the motor (24).

3. A shearing mechanism for a shearing machine according to claim 2, characterized in that: Two clamping blocks (22) are provided, and the two clamping blocks (22) are arranged at both ends of the screw rod (23).

4. A shearing mechanism for a shearing machine according to claim 1, characterized in that: The two sides of the support frame (1) are connected to guide rods (14); the two ends of the fixing block (211) are connected to sliders (25); the sliders (25) are sleeved on the outside of the guide rods (14).

5. A shearing mechanism for a shearing machine according to claim 1, characterized in that: Fixing devices are connected to both sides of the support frame (1); the fixing devices include an electric telescopic rod (31) and a clamping plate (32); the two clamping plates (32) are arranged between the two electric telescopic rods (31); and the clamping plates (32) are driven to move relative to each other by the electric telescopic rod (31).

6. A shearing mechanism for a shearing machine according to claim 1, characterized in that: The upper end of the support frame (1) is connected to a cylinder (15); the lower end of the cylinder (15) is fixedly connected to the upper end of a fixing block (211); and the upper blade (11) is driven to move up and down by the cylinder (15).

7. A shearing mechanism for a shearing machine according to claim 1, characterized in that: The lower end of the second fixed block (212) is connected to a shock absorbing mechanism; the shock absorbing mechanism comprises a spring (4); the upper end of the spring (4) is fixedly connected to the lower end of the second fixed block (212).

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