Cam type shearing mechanism

Abstract

The utility model relates to the technical field of shearing equipment, in particular to a cam type shearing mechanism which comprises a workbench and a fixing frame, a motor is installed on the fixing frame, a through groove is formed in the upper portion of the fixing frame, a guide rod is arranged below the fixing frame, a lifting plate is connected to the guide rod, a spring is arranged outside the guide rod in a sleeved mode, and the lifting plate is connected to the lifting plate. The top of the lifting plate is provided with a touch plate mechanism, the upper side of the touch plate mechanism is movably connected with a cam, the bottom of the lifting plate is provided with a connecting rod, the bottom of the connecting rod is connected with a transverse plate, an upper knife rest is arranged above the workbench, the bottom of the upper knife rest is provided with a mounting groove, and an upper blade is inserted into the mounting groove. A connecting piece is arranged on the upper surface of the upper knife rest, a rectangular through hole is formed in the upper surface of the workbench, a lower blade is arranged below the rectangular through hole correspondingly, and a lower knife rest is clamped to the inner side wall of the bottom of the lower blade. Through the cooperation of the structure, the purposes of periodically cutting off the plate and rapidly disassembling the blade are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shearing equipment, and particularly relates to a cam type shearing mechanism. Background Art

[0002] Currently, in the metalworking industry, shears are used to cut metal sheets into different lengths based on actual production needs. The shears are located above, and the shearing table is located below, with the metal sheet sandwiched between them. The upper shear presses down, pressing the metal sheet against the shearing table, generating shear force and thus shearing the metal sheet.

[0003] However, the shearing mechanisms currently available on the market usually require manual labor to cut the metal sheets, which not only wastes manpower but also results in large shearing errors. In addition, the cutter body is usually an integrated structure with the bracket, or the cutter body is an integrally molded cutter. If damaged, the entire cutter can only be replaced, which increases production costs. A cam-type shearing mechanism is now provided to alleviate the above-mentioned problems. Summary of the Invention

[0004] The utility model realizes the purpose of periodically shearing the plate and quickly disassembling the blade by cooperating with the structures such as the touch plate mechanism, the cam and the connecting piece so that the protrusion of the cam pushes the metal plate downward and the connecting piece and the bolt are separated from the upper knife holder.

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

[0006] The top of the working table is provided with a fixed frame, the bottom of the working table is provided with a motor, the upper part of the fixing frame is provided with a through slot, the lower part of the fixing frame is provided with a symmetrically distributed guide rod, the guide rod is connected to a lifting plate, the outer sleeve of the guide rod is provided with a spring, the top of the lifting plate is provided with a touch plate mechanism, the upper side of the touch plate mechanism is movably connected with a cam, the bottom of the lifting plate is provided with a connecting rod, the bottom of the connecting rod is connected to a cross plate. An upper knife holder is provided above the working table, the bottom of the upper knife holder is provided with a mounting slot, the upper blade is inserted in the mounting slot, the upper surface of the upper knife holder is provided with a connecting piece, the upper surface of the working table is provided with a rectangular through hole, and a lower blade is provided at the corresponding lower part, and the inner side wall of the bottom of the lower blade is clamped with the lower knife holder.

[0007] Preferably, a mounting screw is provided on one side of the upper part of the upper tool holder, a T-slot is provided on the upper surface of the upper tool holder, a plurality of bolts are evenly clamped in the T-slot, the top end of the bolt passes through the T-slot and is connected with a nut, a U-slot is provided on the upper surface of the lower horizontal section of the connecting piece, one end of the U-slot passes through the lower vertical section of the connecting piece, threaded holes are provided above the horizontal plate corresponding to the connecting piece, fixing screws are provided in the threaded holes, and positioning holes are provided in the upper horizontal section of the connecting piece corresponding to the threaded holes.

[0008] Preferably, the touch panel mechanism includes a driving block, the driving block is mounted on the upper surface of the lifting plate, an arc groove is formed on the top of the driving block, and a metal plate is connected to the bottom inside the arc groove.

[0009] Preferably, support frames are installed at the bottom of both sides of the workbench, a limit plate is provided above the workbench, and the structure of the cam is that at least two protrusions are rotatably provided on its outer wall.

[0010] Preferably, a placement rack is installed at the bottom of the lower blade holder, a plurality of obliquely arranged holes are opened on the lower blade, and a small circular hole is opened on the lower blade located at one end of the holes.

[0011] Preferably, the structure of the connecting member is a continuously bent thin plate, the upper horizontal section and the lower horizontal section of the connecting member are respectively fitted with the upper surface of the transverse plate and the upper tool holder, and the upper, middle and lower parts of the vertical section of the connecting member are respectively fitted with the front and rear side walls of the transverse plate and the front side wall of the upper tool holder.

[0012] Compared with the prior art, the gain effect of the present invention is:

[0013] 1. By setting up structures such as a touch plate mechanism, a cam, a lifting plate and a spring, the cam is driven to rotate under the drive of the motor, and the protrusion of the cam pushes the metal plate downward, causing the driving block to move downward. The driving block drives the lifting plate to compress the spring and move downward, so that the upper blade cooperates with the lower blade to complete the shearing of the metal plate. When the protrusion of the cam rotates past, it is reset by the elastic force of the spring, saving manpower, and the cam can realize periodic shearing work without repeated starting and stopping; the structure of the cam is that at least two protrusions are rotatably provided on its outer wall, which greatly shortens the shearing cycle of the metal plate and improves work efficiency.

[0014] 2. By setting up structures such as the horizontal plate, connecting parts, fixing screws, nuts and bolts, it is only necessary to loosen the nut and turn the fixing screw upwards, then move the upper tool holder and the upper blade downward as a whole, so that the lower vertical section of the connecting part is separated from the upper tool holder, and then move the upper tool holder and the upper blade forward, driving the bolt to move forward together until the bolt is disengaged from the U-shaped groove of the connecting part, and finally remove the mounting screws and remove the upper blade, and replace it with a new one, which is convenient for disassembly and installation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the touch panel mechanism, cam and upper blade of an embodiment of the utility model;

[0017] Figure 3 This is a structural diagram of an upper blade holder, an upper blade, a lower blade holder and a lower blade according to an embodiment of the present invention;

[0018] Figure 4 It is a side view of the horizontal plate, upper blade holder, upper blade and connecting member of an embodiment of the utility model;

[0019] Figure 5 It is a structural schematic diagram of a connecting piece according to an embodiment of the present utility model.

[0020] In the figure: workbench 1; through hole 101; support frame 2; fixing frame 3; through slot 301; limit plate 4; lifting plate 5; touch panel mechanism 6; drive block 601; arc slot 602; metal plate 603; motor 7; cam 8; guide rod 9; spring 10; connecting rod 11; cross plate 12; upper tool holder 13; T-slot 1301; mounting slot 1302; upper blade 14; connecting piece 15; U-slot 1501; positioning hole 1502; fixing screw 16; nut 17; bolt 18; mounting screw 19; lower tool holder 20; lower blade 21; hole position 2101; small circular hole 2102; placement rack 22. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example

[0023] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the present invention.

[0024] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances; the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments to facilitate a clearer understanding of the present invention.

[0026] See also Figure 1-5 The top of the cam 8 is provided with a touch plate mechanism 6, and the upper side of the touch plate mechanism 6 is movably connected to the cam 8. The structure of the cam 8 is that at least two protrusions are rotatably provided on its outer wall, and the upper part of the cam 8 passes through the interior of the through slot 301, and the middle part of the cam 8 is fixedly connected to the output shaft of the motor 7.

[0027] See also Figure 1-5The touch panel mechanism 6 includes a driving block 601, and the driving block 601 is fixedly installed on the upper surface of the lifting plate 5. An arc groove 602 is opened on the top of the driving block 601, and a metal plate 603 is fixedly connected to the inner bottom of the arc groove 602. The outer side of the cam 8 is located in the middle of the arc groove 602, and the outer side of the cam 8 is slidably connected to the upper side of the metal plate 603.

[0028] In this embodiment, by starting the motor 7, the output end of the motor 7 drives the cam 8 to rotate, and the cam 8 is always located in the through slot 301, ensuring that the cam 8 will not be offset or misplaced, and the cam 8 will push the metal plate 603 downward, so that the driving block 601 moves downward, and the driving block 601 drives the lifting plate 5 to move downward along the guide rod 9. At the same time, the spring 10 is compressed by the force, and the surface of the metal plate 603 is smooth, which reduces the wear between the cam 8 and the metal plate 603 and saves long-term use costs.

[0029] See also Figure 1-5 The bottom of the lifting plate 5 is fixedly connected with a symmetrically distributed connecting rod 11, and the bottom of the two connecting rods 11 is fixedly connected to the cross plate 12. An upper tool holder 13 is arranged above the workbench 1, and the bottom side wall of the cross plate 12 is abutted against the edge of the upper surface of the upper tool holder 13. A mounting groove 1302 is provided at the bottom of the upper tool holder 13, and an upper blade 14 is inserted into the interior of the mounting groove 1302. A mounting screw 19 is provided on one side of the upper part of the upper tool holder 13, and the upper blade 14 and the upper tool holder 1 are fixedly connected by the mounting screw 19. A T-slot 1301 is provided on the upper surface of the upper tool holder 13, and a bolt 18 is clamped inside the T-slot 1301. The bolt 18 is evenly arranged in a plurality of sizes along the length of the upper tool holder 13. The top of the bolt 18 vertically passes through the T-slot 1301 and is threaded with a nut 17, and a connecting piece 15 is provided on the upper surface of the upper tool holder 13, which is connected to the bolt 18. The upper tool holder 13 is hung on the cross plate 12 through the connecting piece 15.

[0030] Furthermore, the structure of the connecting member 15 is a continuously bent thin plate, and the upper horizontal section and the lower horizontal section of the connecting member 15 are respectively fitted with the upper surfaces of the transverse plate 12 and the upper tool holder 13, and the upper, middle and lower parts of the vertical section of the connecting member 15 are respectively fitted with the front and rear side walls of the transverse plate 12 and the front side wall of the upper tool holder 13.

[0031] See also Figure 1-5A U-shaped groove 1501 is provided on the upper surface of the lower horizontal section of the connecting member 15, and one end of the U-shaped groove 1501 passes through the lower vertical section of the connecting member 15. The bolt 18 is set through the U-shaped groove 1501, and the nut 17 presses the lower horizontal section of the connecting member 15 to the upper side of the upper tool holder 13. Threaded holes are provided at the corresponding connecting members 15 above the horizontal plate 12, and fixing screws 16 are provided inside the threaded holes. Positioning holes 1502 are provided at the corresponding threaded holes in the upper horizontal section of the connecting member 15. The connecting member 15 is fixedly connected to the horizontal plate 12 by the cooperation of the fixing screws 16, the positioning holes 1502 and the threaded holes.

[0032] See also Figure 1-5 A rectangular through hole 101 is provided on the upper surface of the workbench 1, and a lower blade 21 for easy disassembly is provided at the corresponding lower part. The lower blade 21 is clamped with a lower knife holder 20 on the inner side wall of the bottom. A placement rack 22 is fixedly installed at the bottom of the lower knife holder 20. The top of the placement rack 22 is fixedly connected to the bottom of the workbench 1. A plurality of obliquely arranged hole positions 2101 are provided on the lower blade 21, and a circular hole 2102 is provided on the lower blade 21 at one end of the hole position 2101; in actual use, the upper blade 14 drives the metal sheet to move to the lower blade 21, and the lower blade 21 is easily vibrated during shearing. The design of the inclined hole position 2101 and the circular hole 2102 makes it locally hollow, which effectively reduces the vibration force.

[0033] Working principle: When in use, the staff first starts the motor 7 to drive the cam 8 to rotate, so that the protrusion of the cam 8 pushes the metal plate 603 downward, causing the driving block 601 to move downward, and the driving block 601 drives the lifting plate 5 to compress the spring 10 and move downward. The lifting plate 5 drives the upper knife holder 13 to move downward through the connecting rod 11 and the cross plate 12, so that the upper blade 14 cooperates with the lower blade 21 to complete the shearing of the metal plate; at the same time, the upper blade 14 and the lower blade 21 are staggered, and there is a gap of about 1 cm between the two, which is convenient for shearing the metal plate; then when the cam 8 After the protrusion rotates past, it is reset by the elastic force of the spring 10; when the upper blade 14 is damaged, just loosen the nut 17 and turn the fixing screw 16 upward, then move the upper tool holder 13 and the upper blade 14 downward as a whole, so that the lower vertical section of the connecting member 15 is separated from the upper tool holder 13, and then move the upper tool holder 13 and the upper blade 14 forward, driving the bolt 18 to move forward together until the bolt 18 is disengaged from the U-shaped groove 1501 of the connecting member 15, and finally remove the mounting screw 19 to remove the upper blade 14 and replace it with a new one, which is convenient for disassembly and installation.

Claims

1. A cam-type shearing mechanism, comprising a workbench (1), characterized in that: A fixing frame (3) is installed on the top of the workbench (1), a motor (7) is installed on the fixing frame (3), a through slot (301) is provided on the top of the fixing frame (3), symmetrically distributed guide rods (9) are provided below the fixing frame (3), a lifting plate (5) is connected to the guide rods (9), a spring (10) is provided on the outer sleeve of the guide rods (9), a touch plate mechanism (6) is provided on the top of the lifting plate (5), a cam (8) is movably connected to the upper side of the touch plate mechanism (6), and a connecting rod (10) is installed on the bottom of the lifting plate (5). 1), a horizontal plate (12) is connected to the bottom of the connecting rod (11), an upper tool holder (13) is provided above the workbench (1), a mounting groove (1302) is provided at the bottom of the upper tool holder (13), an upper blade (14) is inserted into the mounting groove (1302), a connecting piece (15) is provided on the upper surface of the upper tool holder (13), a rectangular through hole (101) is provided on the upper surface of the workbench (1), and a lower blade (21) is provided at the corresponding lower part, and the lower tool holder (20) is clamped on the inner side wall of the bottom of the lower blade (21).

2. A cam-type shearing mechanism according to claim 1, characterized in that: A mounting screw (19) is provided on one side of the upper portion of the upper tool holder (13), a T-shaped slot (1301) is provided on the upper surface of the upper tool holder (13), a plurality of bolts (18) are evenly clamped in the T-shaped slot (1301), the top end of the bolt (18) passes through the T-shaped slot (1301) and is connected with a nut (17), a U-shaped slot (1501) is provided on the upper surface of the lower horizontal section of the connecting member (15), one end of the U-shaped slot (1501) passes through the lower vertical section of the connecting member (15), threaded holes are provided above the horizontal plate (12) corresponding to the connecting member (15), fixing screws (16) are provided in the threaded holes, and a positioning hole (1502) is provided on the upper horizontal section of the connecting member (15) corresponding to the threaded holes.

3. The cam-type shearing mechanism according to claim 1, characterized in that: The touch panel mechanism (6) comprises a driving block (601), the driving block (601) is mounted on the upper surface of the lifting plate (5), an arc groove (602) is provided on the top of the driving block (601), and a metal plate (603) is connected to the bottom inside the arc groove (602).

4. A cam-type shearing mechanism according to claim 1, characterized in that: Support frames (2) are installed at the bottoms of both sides of the workbench (1), a limit plate (4) is provided above the workbench (1), and the structure of the cam (8) is that at least two protrusions are rotatably provided on its outer wall.

5. The cam type shearing mechanism according to claim 1, characterized in that: A placement rack (22) is installed at the bottom of the lower blade holder (20), and a plurality of obliquely arranged holes (2101) are provided on the lower blade (21), and a circular hole (2102) is provided on the lower blade (21) at one end of the holes (2101).

6. The cam-type shearing mechanism according to claim 1, characterized in that: The structure of the connecting member (15) is a continuously bent thin plate, the upper horizontal section and the lower horizontal section of the connecting member (15) are respectively fitted with the upper surface of the transverse plate (12) and the upper tool holder (13), and the upper, middle and lower parts of the vertical section of the connecting member (15) are respectively fitted with the front and rear side walls of the transverse plate (12) and the front side wall of the upper tool holder (13).

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