Portable shearing device

Abstract

The utility model relates to a portable shearing device which comprises specially-made scissors, a cam mechanism, a laser device and a straight-shank electric hand drill. The specially-made scissors comprise a shearing tool, a spring, a hinge shaft, a cam frame provided with a bearing, a fixing device provided with a laser device and a pressing plate connected with the straight-handle electric hand drill. According to the cutting device, the labor intensity of operators is reduced, fingers are completely prevented from being abraded, and meanwhile, the working efficiency of thin steel plate blanking and cutting is greatly improved. And the thin steel plate can be manually and accurately detached and sheared. The steel plate shearing machine is mainly used for shearing blanking and shearing forming of thin steel plates, the shearing quality and the shearing efficiency of the thin plates are improved, the labor intensity of bench workers is particularly relieved, manual and semi-automatic efficient shearing of the steel plates is achieved, and the blank of portable, semi-automatic and efficient operation in the steel plate blanking industry is filled.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing and processing, and particularly relates to a portable shearing device for a manual shearing and forming method of thin steel plates, and is particularly suitable for manual cutting of steel plates with a thickness of less than 0.5 mm. Background Art

[0002] When manually cutting and shaping thin steel plates at present, scissors are usually used, and the thumb and other four fingers of a human being cooperate coordinately and move repeatedly to achieve the purpose of separating the thin steel plates.

[0003] The current manual cutting technology for thin steel plates usually uses traditional tool scissors and is completed by the continuous movement of a fitter's fingers. Operators often stop work due to finger abrasions, and there are limitations such as high labor intensity and low work efficiency. Content of the Utility Model

[0004] The utility model provides a portable shearing device to solve the above technical problems.

[0005] To solve the above technical problems, the utility model provides a portable shearing device, which is characterized in that: it includes a special scissors, a cam and a drill; the special scissors include a shearing tool, a spring and a cam frame; a spring is installed between the upper and lower arms of the shearing tool; the end of the lower arm of the shearing tool is hinged to the cam frame, a cam is installed in the cam frame, the cam drives the cam frame to move up and down reciprocally, the cam is connected to the drill; the tail of the upper arm of the shearing tool is fixedly connected to the housing of the drill.

[0006] Beneficial Effects: The utility model reduces the labor intensity of operators, completely avoids finger abrasions, and at the same time greatly improves the operation efficiency of cutting and shaping thin steel plates. It realizes accurate manual disassembly and shearing of thin steel plates.

[0007] The utility model is mainly used for shearing and blanking, and shearing and forming of thin steel plates, improves the shearing quality and efficiency of thin plates, especially reduces the labor intensity of fitter personnel, realizes manual and semi-automatic high-efficiency shearing of steel plates, and fills the blank of portable, semi-automatic and high-efficiency operation in the steel plate blanking industry. Description of the Drawings

[0008] Figure 1 It is a schematic structural diagram of the portable shearing device;

[0009] Figure 2 It is a schematic structural diagram of the shearing device with the edge opening;

[0010] Figure 3 For Figure 2 View A (cam part) of

[0011] Legend Explanation:

[0012] 1. Shearing tool; 2. Spring; 3. Upper pin; 4. Lower pin; 5. Cam holder; 6. Hinge shaft; 7. Bearing; 8. Cam; 9. Camshaft; 10. Weight reduction hole; 11. Laser; 12. Fixing device; 13. Adjusting nut; 14. Pressure plate; 15. Locking nut; 16. Straight shank electric drill; 17. Thin light beam; 18. Light beam shooting point; 19. Shearing edge. Detailed implementation manners

[0013] To make the objectives, contents and advantages of the present utility model clearer, the following further describes in detail the detailed implementation manners of the present utility model.

[0014] A portable shearing device proposed by the present utility model includes a special scissors, a cam 8, a laser 11 and a straight shank electric drill 16;

[0015] The special scissors include a shearing tool 1, a spring 2, a hinge shaft 6, a cam holder 5 equipped with bearings, a fixing device 12 for installing the laser, and a pressure plate 14 connecting to the straight shank electric drill;

[0016] Among them, upper pins 3 and lower pins 4 are respectively designed on the upper and lower arms of the shearing tool 1, and a spring 2 is installed between the upper pin and the lower pin. The spring is compressed to generate a thrust to open the scissors mechanism.

[0017] As Figure 1 、 Figure 2 shown, the end of the lower arm of the shearing tool 1 is connected to the cam holder 5 through a hinge shaft 6, and two bearings 7 are installed on the cam holder.

[0018] As Figure 1 、 Figure 2 、 Figure 3 shown, the cam holder is matched with the cam 8 through two bearings 7, and the cam drives the cam holder to reciprocate up and down, driving the cam holder to drive the shearing tool 1 to open or close.

[0019] As Figure 1 、 Figure 2 shown, the cam 8 and the camshaft 9 are integrated, and the camshaft 9 is installed on the straight shank electric drill 16.

[0020] As Figure 1 shown, there is a fixing device 12 in the middle of the upper arm of the shearing tool 1 for installing the laser 11 and locking it with an adjusting nut 13.

[0021] As Figure 1 shown, a pressure plate 14 is designed at the tail of the upper arm of the shearing tool 1 to realize the connection with the shell of the straight shank electric drill and fix it with a locking nut 15.

[0022] As Figure 1 、 Figure 2 、 Figure 3The portable shearing device shown in the figure has a hand-held straight-handled manual electric drill 16 that moves, a laser 18 that adjusts the shearing direction, the electric drill drives the cam 8 to rotate, the cam meshing bearing 7 and the cam frame 5 move, and the cam frame 5 drives the shearing tool 1 to reciprocate, thereby realizing semi-automatic shearing of thin steel plates.

[0023] The operating steps of the utility model are as follows:

[0024] S1 process preparation, install the tail of the upper arm of the shearing tool 1 to the end of the straight handle hand drill 16 close to the rotating body, and fix it with the designed pressing plate 14 and locking nut 15;

[0025] S2 process preparation, install the cam shaft 9 of the cam 8 on the rotating part of the electric drill. When the shearing blade 19 of the shearing tool 1 opens at the maximum angle a°, adjust the relative position of the cam 8 with respect to the electric drill so that the front end surface E of the cam 8 is flush with the front end surface F of the bearing 7;

[0026] S3 process preparation, install the laser 11 on the fixing device 12 in the middle of the upper arm of the shearing tool 1, make the light beam 17 emitted on the thin steel plate have a beam point 18 and a shearing blade 19 in a collinear line, and tighten and fix it with the adjusting nut 13;

[0027] S4 is a debugging operation, which adjusts the straight handle electric drill to rotate at a low speed and corrects the working positions of the cam 8 and the laser 11;

[0028] S5 shears steel plates, and uses a straight-handled hand drill to perform shearing operations;

[0029] S6 shearing inspection, using universal tools or shape templates to detect the shape and size of the sheared workpiece;

[0030] After S7 shearing is completed, the portable shearing device is disassembled and packed for storage.

[0031] The utility model adopts the rotation of the hand electric drill to drive the cam to rotate, the cam meshing bearing drives the cam frame to reciprocate up and down, and the cam frame drives the scissors through the hinge shaft to realize the shearing operation.

[0032] The laser beam installed on the scissors handle is projected onto the track line of the steel plate, and the handheld portable shearing device is used to trim the working track to ensure that the shearing direction does not deviate and achieve accurate shearing.

[0033] The utility model uses a hand electric drill to drive, thus changing the traditional manual operation mode of "thumb + four fingers".

[0034] The utility model utilizes a cam, a bearing and a spring combination. The cam and the bearing realize rolling, and the spring and the cam synchronously complete the reciprocating shearing action of the shearing mechanism.

[0035] The utility model utilizes a laser to emit a light beam to accurately capture the shearing path and complete the shearing forming.

[0036] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A portable shearing device, characterized in that: It includes special scissors, cams and electric drills; the special scissors include shearing tools, springs and cam frames; a spring is installed between the upper and lower arms of the shearing tools; the end of the lower arm of the shearing tools is hinged to the cam frame, a cam is installed in the cam frame, the cam drives the cam frame to reciprocate up and down, and the cam is connected to the electric drill; the tail of the upper arm of the shearing tools is fixedly connected to the housing of the electric drill.

2. A portable shearing device according to claim 1, characterized in that: The upper and lower arms of the shearing tool are respectively designed with an upper pin and a lower pin, and a spring is installed between the upper pin and the lower pin.

3. A portable shearing device according to claim 1, characterized in that: The cam carrier is provided with bearings.

4. A portable shearing device according to claim 1, characterized in that: The cam and camshaft are integrated, and the camshaft is installed on the electric drill.

5. A portable shearing device according to claim 1, characterized in that: The electric drill is a straight-handled hand drill.

6. A portable shearing device according to claim 1, characterized in that: A pressing plate is designed at the tail of the upper arm of the shearing tool for fixed connection with the housing of the straight-shank hand electric drill.

7. A portable shearing device according to claim 1, characterized in that: The upper arm of the shear tool is equipped with a laser.

8. A portable shearing device according to claim 7, characterized in that: There is a fixture in the middle of the upper arm of the shear tool for mounting the laser.

9. A portable shearing device according to claim 1, characterized in that: The cam is installed on the rotating part of the electric drill.

10. A portable shearing device according to claim 3, characterized in that: When the shearing blade of the shearing tool opens at an angle a° to the maximum, the front end surface of the cam is flush with the front end surface of the bearing.

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