Cutting device of sheet metal machine

Abstract

The invention discloses a cutting device of sheet metal machinery, and belongs to the field of cutting devices.The cutting device of the sheet metal machinery comprises a workbench and a pushing mechanism arranged outside the workbench, and the pushing mechanism comprises a working assembly and a pushing assembly.According to the cutting device of the sheet metal machinery, a pushing block is arranged, and a sheet metal material needing to be cut is added into a fixing frame; a first motor rotates to drive a first connecting rod to slide in a groove formed in a second connecting rod, then the second connecting rod rotates, the second connecting rod rotates to drive a first sliding block to slide in a first fixing groove block, and the first fixing groove block moves to drive a pushing block to push out a metal plate material; and after the first sheet metal material is pushed out, the sheet metal material above the first sheet metal material can automatically move downwards under the action of weight, so that the lowermost sheet metal material is located at the pushed-out position, stable and efficient material pushing is further carried out, and material pushing operation on the sheet metal materials is achieved.

Description

Technical Field

[0001] The invention relates to the field of cutting devices, in particular to a cutting device for sheet metal machinery. Background Art

[0002] Sheet metal is generally made by plastically deforming some thin metal plates by hand or die stamping to form the desired shape and size, and can be further formed into more complex parts through welding or a small amount of machining. Sheet metal usually requires cutting technology to simply remove part of the material to make a usable part.

[0003] However, the existing sheet metal has the problem of being unable to push materials automatically during cutting. Materials are generally pushed manually, which not only increases the workload of the staff, but also leads to low pushing efficiency. In addition, the existing sheet metal has the problem of being unable to be automatically fixed during cutting. When cutting sheet metal, it is usually adopted to manually step on the sheet metal with feet and then fix the sheet metal. Due to the large cutting force, manual fixation can easily cause the position of the sheet metal to shift, resulting in cutting deviation. In addition, the existing sheet metal has the problem of limitations during cutting. Generally, sheet metal can only be cut in one direction during cutting operation, and cannot be moved in multiple directions for cutting. There are certain limitations. For this reason, we propose a cutting device for sheet metal machinery. Summary of the invention

[0004] The object of the present invention is to provide a cutting device for sheet metal machinery to solve the problems mentioned in the above background technology that the material cannot be pushed automatically, cannot be fixed automatically and cannot move in multiple directions during sheet metal cutting.

[0005] The present invention is implemented as follows: a cutting device for a sheet metal machine comprises a workbench and a material pushing mechanism arranged outside the workbench, wherein the material pushing mechanism comprises a working component and a material pushing component;

[0006] The connecting assembly includes a first motor, a first connecting rod, a second connecting rod, and a fixed block. The first motor is arranged inside the workbench, the first connecting rod is arranged at the output end of the first motor, the second connecting rod is slidably connected to the end of the first connecting rod away from the first motor, and a fixed block is arranged on the inner wall of one end of the second connecting rod;

[0007] The pusher assembly includes a first slider, a first fixed slot block, a fixed rod, a pusher block and a fixed frame, the second connecting rod is fixedly connected to the first slider at one end away from the fixed block, the inner wall of the workbench is fixedly connected to the first fixed slot block, the bottom end of the first slider is fixedly connected to the fixed rod, the top end of the first slider is provided with a pusher block, and the interior of the workbench is provided with a fixed frame;

[0008] One end of the fixed rod is fixedly connected to a push rod, and an end of the push rod away from the fixed rod is fixedly connected to a third connecting rod, a first rack is arranged on the outside of the third connecting rod, an outer wall of the first rack is meshedly connected to a gear, an end of the gear away from the first rack is meshedly connected to a second rack, and an end of the second rack is fixedly connected to a fourth fixed slot block, a second motor is arranged inside the workbench, a first sprocket is arranged at the output end of the second motor, an outer wall of the first sprocket is meshedly connected to a chain, an end of the chain away from the first sprocket is arranged at a second sprocket, a support block is arranged at one end of the second sprocket, a rotating block is fixedly connected to the outer wall of the chain, a first hydraulic cylinder is arranged on the outside of the rotating block, a second hydraulic cylinder is arranged at one end of the first hydraulic cylinder, a cutting head is arranged at one end of the second hydraulic cylinder, and sheet metal material is arranged inside the fixed frame.

[0009] Preferably, a groove matching with the first connecting rod is provided inside the second connecting rod, and the first connecting rod forms a sliding structure with the second connecting rod through the first motor.

[0010] Preferably, the push blocks are provided in two groups, and the positions of the two groups of push blocks are symmetrical about the midpoint of the fixed frame. The push blocks form a pushing structure with the sheet metal material through the first sliding block and the first fixed slot block.

[0011] Preferably, the third connecting rod includes a first splint, a first fixed column, a second fixed slot block and a third fixed slot block, the outer wall of the third connecting rod is fixedly connected to the first splint, the inner wall of the third connecting rod is penetrated by the first fixed column, one end of the third connecting rod is fixedly connected to the second fixed slot block, and the end of the third connecting rod away from the second fixed slot block is fixedly connected to the third fixed slot block.

[0012] Preferably, the second rack forms a sliding structure through a gear and a second fixed slot block.

[0013] Preferably, the fourth fixed slot block includes a fourth connecting rod, a second fixed column, a fifth fixed slot block and a second clamping plate, one end of the fourth fixed slot block is fixedly connected to the fourth connecting rod, the inner wall of the fourth connecting rod is penetrated by the second fixed column, the end of the fourth connecting rod away from the fourth fixed slot block is fixedly connected to the fifth fixed slot block, and the outer wall of the fourth connecting rod is fixedly connected to the second clamping plate.

[0014] Preferably, the rotating block includes a sixth fixed groove block, a second slider and a slide groove, the rotating block is provided with a sixth fixed groove block away from the chain, the outer wall of the sixth fixed groove block is fixedly connected to the second slider, and the interior of the workbench is provided with a slide groove.

[0015] Preferably, the rotating block forms a sliding structure with the sixth fixed slot block through a chain, and the sixth fixed slot block forms a sliding structure with the rotating block, the second sliding block and the sliding slot.

[0016] Preferably, the cutting head forms a translation structure with the sixth fixed slot block through the first hydraulic cylinder, the second hydraulic cylinder and the sixth fixed slot block.

[0017] The present invention provides a sheet metal cutting device, which has the following beneficial effects when used:

[0018] 1. A cutting device of a sheet metal machine, by setting a push block, adding the sheet metal material to be cut into a fixed frame, and driving the first connecting rod to slide in the groove set inside the second connecting rod through the rotation of the first motor, thereby causing the second connecting rod to rotate, and the rotation of the second connecting rod drives the first slider to slide in the first fixed groove block, and the movement of the first fixed groove block drives the push block to push the sheet metal material out. After the first sheet metal material is pushed out, the sheet metal material above it will automatically move downward under the action of weight, so that the sheet metal material at the bottom is in a position to be pushed out, thereby performing a smooth and efficient pushing operation to realize the pushing operation of the sheet metal material.

[0019] 2. The cutting device of the sheet metal machinery performs a fixing operation when cutting the sheet metal by setting a first clamping plate and a second clamping plate. The sliding of the first slider drives the fixed rod and the push rod to move. The moving movement of the push rod drives the third connecting rod to slide on the first fixed column, thereby realizing the control operation of the first clamping plate clamping one end of the sheet metal material. The sliding of the third connecting rod will drive the second fixed slot block, the third fixed slot block and the first rack to move. The movement of the first rack will drive the gear to rotate, and then drive the second rack to slide on the second fixed slot block. The movement of the second rack will drive the fourth connecting rod and the fifth fixed slot block to slide on the second fixed column. At this time, the second clamping plate clamps the other end of the sheet metal material, thereby realizing the clamping and fixing operation of both ends of the sheet metal material.

[0020] 3. The cutting device of the sheet metal machine performs cutting operations on the fixed sheet metal by setting a cutting head. Under the action of the second motor, the first sprocket is driven to rotate. With the cooperation of the second sprocket, the rotation of the first sprocket drives the chain to rotate. A groove is arranged inside the sixth fixed slot block. The movement of the chain drives the rotating block to slide inside the sixth fixed slot block, and at the same time drives the second slider to slide in the slide groove, thereby driving the sixth fixed slot block to translate in the Y direction, and then under the action of the first hydraulic cylinder, the cutting head is driven to translate in the X direction, and then under the action of the second hydraulic cylinder, the cutting head is driven to be parallel in the Z direction, thereby realizing various cutting operations on the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the accompanying drawings, the above and other purposes, features and advantages of the present invention will be clearer. The same reference numerals in all the drawings indicate the same parts. The drawings are not deliberately scaled to the actual size, and the focus is on illustrating the main purpose of the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the matching structure of the fixing rod and the push rod of the present invention;

[0025] Figure 4 This is a schematic diagram of the push block and material pushing structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection structure of the first clamping plate and the second clamping plate of the present invention;

[0027] Figure 6 It is a schematic diagram of the sliding structure of the first slider of the present invention;

[0028] Figure 7 It is a schematic diagram of the moving structure of the cutting head of the present invention;

[0029] Summary of reference numerals: 1. workbench; 2. first motor; 3. first connecting rod; 4. second connecting rod; 5. fixed block; 6. first slider; 7. first fixed slot block; 8. fixed rod; 9. push block; 10. fixed frame; 11. push rod; 12. third connecting rod; 1201. first clamping plate; 1202. first fixed column; 1203. second fixed slot block; 1204. third fixed slot block; 13. first rack; 14. gear; 15. second rack; 16 , fourth fixed slot block; 1601, fourth connecting rod; 1602, second fixed column; 1603, fifth fixed slot block; 1604, second clamping plate; 17, second motor; 18, first sprocket; 19, chain; 20, second sprocket; 21, support block; 22, rotating block; 2201, sixth fixed slot block; 2202, second slider; 2203, slide; 23, first hydraulic cylinder; 24, second hydraulic cylinder; 25, cutting head; 26, sheet metal material. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0034] For examples, see Figures 1 to 7 , this embodiment provides a cutting device for a sheet metal machine, comprising a workbench 1 and a pushing mechanism arranged outside the workbench 1, the pushing mechanism comprising a working component and a pushing component;

[0035] The connecting assembly includes a first motor 2, a first connecting rod 3, a second connecting rod 4, and a fixing block 5. The first motor 2 is arranged inside the workbench 1, and the first connecting rod 3 is arranged at the output end of the first motor 2. The end of the first connecting rod 3 away from the first motor 2 is slidably connected to the second connecting rod 4, and the inner wall of one end of the second connecting rod 4 is provided with a fixing block 5;

[0036] The pusher assembly includes a first slider 6, a first fixed slot block 7, a fixed rod 8, a pusher block 9 and a fixed frame 10. The end of the second connecting rod 4 away from the fixed block 5 is fixedly connected to the first slider 6, the inner wall of the workbench 1 is fixedly connected to the first fixed slot block 7, the bottom end of the first slider 6 is fixedly connected to the fixed rod 8, the top end of the first slider 6 is provided with a pusher block 9, and the interior of the workbench 1 is provided with a fixed frame 10;

[0037] One end of the fixed rod 8 is fixedly connected to a push rod 11, and the end of the push rod 11 away from the fixed rod 8 is fixedly connected to a third connecting rod 12, a first rack 13 is arranged outside the third connecting rod 12, the outer wall of the first rack 13 is meshed with a gear 14, the end of the gear 14 away from the first rack 13 is meshed with a second rack 15, one end of the second rack 15 is fixedly connected to a fourth fixed slot block 16, a second motor 17 is arranged inside the workbench 1, and the output end of the second motor 17 is provided with a first chain Wheel 18, the outer wall of the first sprocket 18 is meshedly connected with a chain 19, the end of the chain 19 away from the first sprocket 18 is provided with a second sprocket 20, one end of the second sprocket 20 is provided with a support block 21, the outer wall of the chain 19 is fixedly connected with a rotating block 22, the outside of the rotating block 22 is provided with a first hydraulic cylinder 23, one end of the first hydraulic cylinder 23 is provided with a second hydraulic cylinder 24, one end of the second hydraulic cylinder 24 is provided with a cutting head 25, and the interior of the fixed frame 10 is provided with a sheet metal material 26.

[0038] Furthermore, a groove matching the first connecting rod 3 is provided inside the second connecting rod 4. The first connecting rod 3 forms a sliding structure with the second connecting rod 4 through the first motor 2, which is conducive to the rotation of the first motor 2 to drive the first connecting rod 3 to slide in the groove provided inside the second connecting rod 4, thereby causing the second connecting rod 4 to rotate, thereby realizing the control operation of the rotation of the second connecting rod 4.

[0039] Furthermore, two groups of push blocks 9 are provided, and the position relationship of the two groups of push blocks 9 is symmetrical about the midpoint of the fixed frame 10. The push blocks 9 form a pushing structure with the sheet metal material 26 through the first slider 6 and the first fixed groove block 7, which is conducive to the rotation of the second connecting rod 4 to drive the first slider 6 to slide in the first fixed groove block 7. The movement of the first fixed groove block 7 drives the push blocks 9 to push the sheet metal material 26, thereby realizing the control operation of pushing the material by the push blocks 9.

[0040] Furthermore, the third connecting rod 12 includes a first clamping plate 1201, a first fixed column 1202, a second fixed slot block 1203 and a third fixed slot block 1204. The outer wall of the third connecting rod 12 is fixedly connected to the first clamping plate 1201, the inner wall of the third connecting rod 12 is penetrated by the first fixed column 1202, one end of the third connecting rod 12 is fixedly connected to the second fixed slot block 1203, and the end of the third connecting rod 12 away from the second fixed slot block 1203 is fixedly connected to the third fixed slot block 1204. By setting the third connecting rod 12, the sliding of the first sliding block 6 is facilitated to drive the fixed rod 8 and the push rod 11 to move, and the movement of the push rod 11 drives the third connecting rod 12 to slide on the first fixed column 1202, thereby realizing the control operation of the first clamping plate 1201 to clamp one end of the sheet metal material 26.

[0041] Furthermore, the second rack 15 forms a sliding structure through the gear 14 and the second fixed slot block 1203, which is conducive to the first rack 13 driving the gear 14 to rotate, and then driving the second rack 15 to slide on the second fixed slot block 1203, thereby realizing the control operation of the sliding of the second rack 15.

[0042] Further, the fourth fixed slot block 16 includes a fourth connecting rod 1601, a second fixing column 1602, a fifth fixed slot block 1603 and a second clamping plate 1604, one end of the fourth fixed slot block 16 is fixedly connected to the fourth connecting rod 1601, the inner wall of the fourth connecting rod 1601 is penetrated by the second fixing column 1602, the end of the fourth connecting rod 1601 away from the fourth fixed slot block 16 is fixedly connected to the fifth fixed slot block 1603, and the outer wall of the fourth connecting rod 1601 is fixedly connected to the second clamping plate 1604. The fixed slot block 16 is conducive to the movement of the third connecting rod 12 to drive the third fixed slot block 1204 and the first rack 13 to move. At this time, the first rack 13 drives the gear 14 to rotate, and then drives the second rack 15 to slide on the second fixed slot block 1203. The movement of the second rack 15 will drive the fourth connecting rod 1601 and the fifth fixed slot block 1603 to slide on the second fixed column 1602, thereby realizing the control operation of clamping the second clamping plate 1604 to the other end of the sheet metal material 26.

[0043] Furthermore, the rotating block 22 includes a sixth fixed slot block 2201, a second slider 2202 and a slide slot 2203. The rotating block 22 is provided with a sixth fixed slot block 2201 away from the chain 19. The outer wall of the sixth fixed slot block 2201 is fixedly connected to the second slider 2202, and the slide slot 2203 is provided inside the workbench 1.

[0044] Furthermore, the rotating block 22 forms a sliding structure with the sixth fixed slot block 2201 through the chain 19, and the sixth fixed slot block 2201 forms a sliding structure with the rotating block 22 and the second slider 2202 and the slide slot 2203. A groove is arranged inside the sixth fixed slot block 2201, which is conducive to the movement of the chain 19 to drive the rotating block 22 to slide inside the sixth fixed slot block 2201, and at the same time drive the second slider 2202 to slide in the slide slot 2203, thereby realizing the control operation of the sliding of the sixth fixed slot block 2201.

[0045] Furthermore, the cutting head 25 forms a translation structure with the sixth fixed slot block 2201 through the first hydraulic cylinder 23 and the second hydraulic cylinder 24, which is conducive to driving the cutting head 25 to translate in the X direction under the action of the first hydraulic cylinder 23, and then driving the cutting head 25 to be parallel in the Z direction under the action of the second hydraulic cylinder 24, thereby realizing the control operation of multi-faceted cutting of sheet metal.

[0046] like Figure 1As shown, when the cutting device of the sheet metal machine is used, first, a pushing operation is performed. The sheet metal material 26 to be cut is added to the fixed frame 10. The rotation of the first motor 2 drives the first connecting rod 3 to slide in the groove set inside the second connecting rod 4, thereby rotating the second connecting rod 4. The rotation of the second connecting rod 4 drives the first slider 6 to slide in the first fixed groove block 7. The movement of the first fixed groove block 7 drives the pushing block 9 to push the sheet metal material 26. After the first sheet metal material 26 is pushed out, the sheet metal material 26 above it will automatically move downward under the action of weight, so that the lowest sheet metal material 26 is in a pushed out position, thereby performing a smooth and efficient pushing operation to realize the pushing operation of the sheet metal material 26.

[0047] Next, during the fixing operation when cutting the sheet metal, the sliding of the first slider 6 drives the fixing rod 8 and the push rod 11 to move, and the movement of the push rod 11 drives the third connecting rod 12 to slide on the first fixed column 1202, thereby realizing the control operation of the first clamping plate 1201 clamping one end of the sheet metal material 26, and the sliding of the third connecting rod 12 will drive the second fixed slot block 1203, the third fixed slot block 1204 and the first rack 13 to move, and the movement of the first rack 13 will drive the gear 14 to rotate, thereby driving the second rack 15 to slide on the second fixed slot block 1203, and the movement of the second rack 15 will drive the fourth connecting rod 1601 and the fifth fixed slot block 1603 to slide on the second fixed column 1602, and at this time, the second clamping plate 1604 clamps the other end of the sheet metal material 26, thereby realizing the clamping and fixing operation of both ends of the sheet metal material 26.

[0048] Finally, the fixed sheet metal is cut. Under the action of the second motor 17, the first sprocket 18 is driven to rotate. With the cooperation of the second sprocket 20, the rotation of the first sprocket 18 drives the chain 19 to rotate. A groove is provided inside the sixth fixed slot block 2201. The movement of the chain 19 drives the rotating block 22 to slide inside the sixth fixed slot block 2201, and at the same time drives the second slider 2202 to slide in the slide groove 2203, thereby driving the sixth fixed slot block 2201 to translate in the Y direction, and then under the action of the first hydraulic cylinder 23, the cutting head 25 is driven to translate in the X direction, and then under the action of the second hydraulic cylinder 24, the cutting head 25 is driven to be parallel in the Z direction, thereby realizing various cutting operations on the sheet metal.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cutting device for a sheet metal machine, comprising a workbench (1) and a material pushing mechanism arranged outside the workbench (1), characterized in that: The pushing mechanism comprises a working component and a pushing component; The connecting assembly comprises a first motor (2), a first connecting rod (3), a second connecting rod (4), and a fixing block (5); the first motor (2) is arranged inside the workbench (1); the first connecting rod (3) is arranged at the output end of the first motor (2); the second connecting rod (4) is slidably connected to one end of the first connecting rod (3) away from the first motor (2); and the fixing block (5) is arranged on the inner wall of one end of the second connecting rod (4); The pusher assembly comprises a first slider (6), a first fixed groove block (7), a fixed rod (8), a pusher block (9) and a fixed frame (10); the end of the second connecting rod (4) away from the fixed block (5) is fixedly connected to the first slider (6); the inner wall of the workbench (1) is fixedly connected to the first fixed groove block (7); the bottom end of the first slider (6) is fixedly connected to the fixed rod (8); the top end of the first slider (6) is provided with a pusher block (9); and the interior of the workbench (1) is provided with a fixed frame (10).

2. A cutting device for sheet metal machinery according to claim 1, characterized in that: One end of the fixed rod (8) is fixedly connected to a push rod (11), and the end of the push rod (11) away from the fixed rod (8) is fixedly connected to a third connecting rod (12), a first rack (13) is arranged outside the third connecting rod (12), an outer wall of the first rack (13) is meshingly connected to a gear (14), an end of the gear (14) away from the first rack (13) is meshingly connected to a second rack (15), one end of the second rack (15) is fixedly connected to a fourth fixed slot block (16), a second motor (17) is arranged inside the workbench (1), and a first sprocket is arranged at the output end of the second motor (17). (18), the outer wall of the first sprocket (18) is meshedly connected with a chain (19), a second sprocket (20) is arranged at one end of the chain (19) away from the first sprocket (18), a support block (21) is arranged at one end of the second sprocket (20), the outer wall of the chain (19) is fixedly connected with a rotating block (22), a first hydraulic cylinder (23) is arranged outside the rotating block (22), a second hydraulic cylinder (24) is arranged at one end of the first hydraulic cylinder (23), a cutting head (25) is arranged at one end of the second hydraulic cylinder (24), and a sheet metal material (26) is arranged inside the fixed frame (10).

3. A cutting device for sheet metal machinery according to claim 1, characterized in that: The second connecting rod (4) is provided with a groove matching the first connecting rod (3) inside, and the first connecting rod (3) forms a sliding structure with the second connecting rod (4) through the first motor (2).

4. The cutting device for sheet metal machinery according to claim 1, characterized in that: The push blocks (9) are provided in two groups, and the positional relationship of the two groups of push blocks (9) is symmetrical about the midpoint of the fixed frame (10). The push blocks (9) form a pushing structure with the sheet metal material (26) through the first sliding block (6) and the first fixed slot block (7).

5. The cutting device for sheet metal machinery according to claim 2, characterized in that: The third connecting rod (12) comprises a first clamping plate (1201), a first fixed column (1202), a second fixed slot block (1203) and a third fixed slot block (1204); the outer wall of the third connecting rod (12) is fixedly connected to the first clamping plate (1201); the inner wall of the third connecting rod (12) is penetrated by the first fixed column (1202); one end of the third connecting rod (12) is fixedly connected to the second fixed slot block (1203); and the end of the third connecting rod (12) away from the second fixed slot block (1203) is fixedly connected to the third fixed slot block (1204).

6. A cutting device for sheet metal machinery according to claim 5, characterized in that: The second rack (15) forms a sliding structure through the gear (14) and the second fixed slot block (1203).

7. The cutting device for sheet metal machinery according to claim 5, characterized in that: The fourth fixed slot block (16) comprises a fourth connecting rod (1601), a second fixed column (1602), a fifth fixed slot block (1603) and a second clamping plate (1604); one end of the fourth fixed slot block (16) is fixedly connected to the fourth connecting rod (1601); the inner wall of the fourth connecting rod (1601) is penetrated by the second fixed column (1602); the end of the fourth connecting rod (1601) away from the fourth fixed slot block (16) is fixedly connected to the fifth fixed slot block (1603); and the outer wall of the fourth connecting rod (1601) is fixedly connected to the second clamping plate (1604).

8. The cutting device for sheet metal machinery according to claim 8, characterized in that: The rotating block (22) comprises a sixth fixed slot block (2201), a second slider (2202) and a slide groove (2203); the rotating block (22) is provided with a sixth fixed slot block (2201) away from the chain (19); the outer wall of the sixth fixed slot block (2201) is fixedly connected to the second slider (2202); and the interior of the workbench (1) is provided with a slide groove (2203).

9. A sheet metal cutting device according to claim 8, characterized in that: The rotating block (22) forms a sliding structure with the sixth fixed slot block (2201) through the chain (19), and the sixth fixed slot block (2201) forms a sliding structure with the rotating block (22) and the second sliding block (2202) and the sliding slot (2203).

10. The cutting device for sheet metal machinery according to claim 8, characterized in that: The cutting head (25) forms a translation structure with the sixth fixed slot block (2201) through the first hydraulic cylinder (23) and the second hydraulic cylinder (24).

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