Sheet metal shearing machine

Abstract

The utility model relates to the technical field of sheet metal machining, and particularly discloses a sheet metal shearing machine which comprises a workbench and a shearing mechanism fixed to the position, close to one end, of the top face of the workbench. The sliding base plate comprises a supporting plate, a protruding part integrally formed in the middle of the bottom face of the supporting plate, an extending plate integrally formed in the middle of the outer side of the supporting plate and limiting edge blocks arranged at the positions, close to the two ends, of the top face of the supporting plate. The pressing piece comprises jacking telescopic cylinders which are arranged above the two ends of the supporting plate and extend in the vertical direction, and pressing blocks fixed to the bottom ends of piston rods of the jacking telescopic cylinders; a blade plate is fixed to the position, corresponding to the shearing mechanism, of the top face of the workbench, a groove matched with the protruding part in a sliding and clamping mode is formed in the position, located on one side of the blade plate, of the top face of the workbench, and a spiral driving mechanism for driving the sliding base plate to slide is installed at the position, corresponding to the middle of the groove, of the workbench. And the problem that the precision is not high when the shearing machine is used for slitting the plate is well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to a sheet metal shearing machine. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for metal sheets, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc.

[0003] Currently, when the sheet metal needs to be sheared during processing, most of them are sheared manually, that is, the sheet is pushed manually to move the position to be sheared of the sheet to the position of the cutting blade plate, and then the cutting blade cuts the sheet. Among them, manually moving the sheet is prone to certain errors, making it difficult to ensure the processing accuracy. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sheet metal shearing machine, which is used to solve the problem of low precision when the current shearing machine cuts the sheet.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A sheet metal shearing machine, including a workbench and a shearing mechanism fixed at a position near one end of the top surface of the workbench. The sliding substrate includes a support plate, a convex part integrally formed in the middle of the bottom surface of the support plate, an extension plate integrally formed in the middle of the outer side of the support plate, and limit edge blocks arranged at positions near both ends of the top surface of the support plate; the pressing member includes a top pressure telescopic cylinder arranged above both ends of the support plate and extending vertically and a pressing block fixed at the bottom end of the piston rod of the top pressure telescopic cylinder; a blade plate is fixed at a position corresponding to the shearing mechanism on the top surface of the workbench, a groove slidably clamped and matched with the convex part is arranged at a position on the top surface of the workbench on one side of the blade plate, and a spiral driving mechanism for driving the sliding substrate to slide is installed at a position corresponding to the middle of the groove on the workbench.

[0006] Preferably, a chute is arranged in the middle of the bottom surface of the groove along the long side direction thereof, shaft holes are respectively arranged on the side walls at both ends of the chute, a slider slidably clamped and matched with the chute is arranged in the middle of the bottom surface of the convex part, a threaded sleeve is fixedly sleeved in the middle of the slider, and the spiral driving mechanism includes a lead screw rotatably sleeved at both ends in the shaft holes and threadedly sleeved and matched with the threaded sleeve and a servo motor fixed on the side wall of the workbench and used for driving the lead screw to rotate.

[0007] Preferably, slot holes are respectively arranged on both sides of the middle of the top surface of the support plate and penetrating through the bottom surface of the convex part, and a roller shaft with the top end tangent to the top surface of the support plate and the bottom end tangent to the bottom surface of the convex part is rotatably installed in the slot holes.

[0008] Preferably, paired threaded holes are respectively provided at both ends of the support plate. The pressing member further includes a C-shaped plate with the bottom end clamped to both ends of the support plate. Bolts sleeved on the bottom plate of the C-shaped plate are in threaded socket connection with the threaded holes, and the piston cylinder of the top pressure telescopic cylinder is fixed on the top surface of the C-shaped plate.

[0009] Preferably, the shearing mechanism includes a gantry with the bottom end fixed on the top surface of the workbench and located on the front and rear sides of the cutting blade, a knife plate arranged in the inner cavity of the gantry and directly above the cutting blade, a lifting telescopic cylinder with the piston cylinder fixed vertically on the middle of the top surface of the gantry and the bottom end of the piston rod fixed on the middle of the top surface of the knife plate, linear bearings fixed at positions near the front and rear ends of the top surface of the gantry, and guide rods slidably sleeved in the linear bearings and with the bottom ends fixed on both ends of the top surface of the knife plate.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] A sheet metal shearing machine related to the present utility model clamps a sheet to be sheared on a sliding substrate by a clamping member, and a screw drive mechanism pushes the sheet to the shearing mechanism through the sliding substrate, thereby facilitating the process of accurate feeding and improving the precision of shearing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present utility model;

[0013] Figure 2 is a three-dimensional structural schematic diagram of the workbench of the present utility model;

[0014] Figure 3 is a three-dimensional structural schematic diagram of the sliding substrate of the present utility model.

[0015] In the figure: 1 - workbench; 1.1 - cutting blade; 1.2 - groove; 1.3 - chute; 1.4 - shaft hole;

[0016] 2 - shearing mechanism; 2.1 - gantry; 2.2 - knife plate; 2.3 - lifting telescopic cylinder; 2.4 - linear bearing; 2.5 - guide rod;

[0017] 3 - sliding substrate; 3.1 - support plate; 3.1.1 - threaded hole; 3.1.2 - slot hole; 3.2 - convex part; 3.3 - slider; 3.4 - threaded sleeve; 3.5 - extension plate; 3.6 - roller; 3.7 - limit edge block;

[0018] 4 - pressing member; 4.1 - C-shaped plate; 4.2 - top pressure telescopic cylinder; 4.3 - pressing block;

[0019] 5 - screw drive mechanism; 5.1 - lead screw; 5.2 - servo motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a sheet metal shearing machine. A cutting blade 1.1 is fixed at a position near one end on the top surface of a workbench 1, and a groove 1.2 is provided inside the cutting blade 1.1. A sliding groove 1.3 is provided in the middle of the bottom surface of the groove 1.2 along the long side direction thereof, and shaft holes 1.4 are respectively provided on the side walls at both ends of the sliding groove 1.3.

[0022] The shearing mechanism 2 includes gantries 2.1 fixed at the bottom end on the top surface of the workbench 1 and located on the front and rear sides of the cutting blade 1.1, a knife plate 2.2 provided inside the gantries 2.1 and located directly above the cutting blade 1.1, a lifting telescopic cylinder 2.3 with the piston cylinder fixed vertically in the middle of the top surface of the gantries 2.1 and the bottom end of the piston rod fixed to the middle of the top surface of the knife plate 2.2, linear bearings 2.4 fixed at positions near the front and rear ends on the top surface of the gantries 2.1, and guide rods 2.5 slidably sleeved inside the linear bearings 2.4 and with the bottom ends fixed to both ends of the top surface of the knife plate 2.2.

[0023] The sliding substrate 3 includes a support plate 3.1, a convex portion 3.2 integrally formed in the middle of the bottom surface of the support plate 3.1, an extension plate 3.5 integrally formed in the middle of the outer side of the support plate 3.1, and limit edge blocks 3.7 provided at positions near both ends on the top surface of the support plate 3.1; wherein, a slider 3.3 slidably engaged with the sliding groove 1.3 is provided in the middle of the bottom surface of the convex portion 3.2, a threaded sleeve 3.4 is fixedly sleeved in the middle of the slider 3.3; threaded holes 3.1.1 are respectively provided at both ends of the support plate 3.1.

[0024] The pressing member 4 further includes a C-shaped plate 4.1 with the bottom end clamped at both ends of the support plate 3.1. A bolt sleeved on the bottom plate of the C-shaped plate 4.1 is threadedly sleeved with the threaded hole 3.1.1. The piston cylinder of the top pressing telescopic cylinder 4.2 is fixed on the top surface of the C-shaped plate 4.1, and a pressing block 4.3 is fixed to the bottom end of the piston rod of the top pressing telescopic cylinder 4.2.

[0025] The screw drive mechanism 5 includes a lead screw 5.1 with both ends rotatably sleeved in the shaft holes 1.4 and threadedly engaged with the threaded sleeve 3.4, and a servo motor 5.2 fixed on the side wall of the workbench 1 and used to drive the lead screw 5.1 to rotate.

[0026] In summary, when cutting the sheet material, first place the sheet material on the top surfaces of the support plate 3.1 and the extension plate 3.5, and ensure that one side of the sheet material is closely abutted against the limit edge block 3.7. Extend the piston rod of the top pressure telescopic cylinder 4.2, so that the pressing block 4.3 positions and presses the sheet material tightly on the support plate 3.1. The top surface of the extension plate 3.5 is flush with the top surface of the support plate 3.1 to better support the sheet material. The servo motor 5.2 drives the lead screw 5.1 to rotate, and the rotating lead screw 5.1 drives the sliding substrate 3 carrying the sheet material to move towards the shearing mechanism 2 through the threaded sleeve 3.4. When the position of the sheet material to be cut moves to align with the outer side wall of the cutting blade 1.1, the lifting telescopic cylinder 2.3 pushes the knife plate 2.2 downward, and the knife plate 2.2 drops and cooperates with the cutting blade 1.1 to cut the sheet material, and so on, to complete one cycle of feeding and cutting operations. When the length of the sheet material is relatively long, during the cutting operation, it is necessary to first release the pressing and fixing effect of the pressing block 4.3 on the sheet material, and then manually push the sheet material under the calibration of the limit edge block 3.7. After pressing the sheet material tightly with the pressing block 4.3 again, perform the feeding and cutting operation according to the above steps.

[0027] In order to facilitate improving the smoothness of the overall sliding of the sliding substrate 3 and facilitating the pushing of the sheet material along the top surface of the support plate 3.1, slot holes 3.1.2 are respectively provided on both sides of the middle part of the top surface of the support plate 3.1, and the bottom of the slot holes 3.1.2 penetrates through the bottom surface of the convex part 3.2. A roller shaft 3.6 is rotatably installed in the slot holes 3.1.2, and the top end of the roller shaft 3.6 is tangent to the top surface of the support plate 3.1 and the bottom end is tangent to the bottom surface of the convex part 3.2.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal shearing machine, comprising a workbench (1) and a shearing mechanism (2) fixed to a top surface of the workbench (1) near one end, characterized in that: Also includes: A sliding base plate (3), the sliding base plate (3) comprising a support plate (3.1), a convex portion (3.2) integrally formed in the middle of the bottom surface of the support plate (3.1), an extension plate (3.5) integrally formed in the middle of the outer side of the support plate (3.1), and limiting edge blocks (3.7) provided on the top surface of the support plate (3.1) near both ends; A holding member (4), the holding member (4) comprising a top-pressing telescopic cylinder (4.2) disposed above both ends of the support plate (3.1) and extending vertically, and a pressing block (4.3) fixed to the bottom end of the piston rod of the top-pressing telescopic cylinder (4.2); A blade plate (1.1) is fixed to the top surface of the workbench (1) at a position corresponding to the shearing mechanism (2); a groove (1.2) is provided on the top surface of the workbench (1) at a position on one side of the blade plate (1.1) and is matched with the convex portion (3.2) for sliding engagement; and a spiral driving mechanism (5) for driving the sliding base plate (3) to slide is installed on the workbench (1) at a position corresponding to the middle of the groove (1.2).

2. A sheet metal shearing machine according to claim 1, characterized in that: A slide groove (1.3) is provided in the middle of the bottom surface of the groove (1.2) along its long side direction, and the side walls at both ends of the slide groove (1.3) are respectively provided with shaft holes (1.4), and a slider (3.3) is provided in the middle of the bottom surface of the convex portion (3.2) for sliding and clamping matching with the slide groove (1.3), and a threaded sleeve (3.4) is fixedly sleeved in the middle of the slider (3.3), and the screw drive mechanism (5) comprises a screw rod (5.1) with both ends rotatably sleeved in the shaft hole (1.4) and threadedly sleeved matching with the threaded sleeve (3.4), and a servo motor (5.2) fixed to the side wall of the workbench (1) and used for driving the screw rod (5.1) to rotate.

3. The sheet metal shearing machine according to claim 1, characterized in that: Slot holes (3.1.2) with bottoms penetrating the bottom surface of the convex portion (3.2) are respectively provided on both sides of the middle of the top surface of the support plate (3.1), and a roller shaft (3.6) is rotatably installed in the slot hole (3.1.2) with the top end tangent to the top surface of the support plate (3.1) and the bottom end tangent to the bottom surface of the convex portion (3.2).

4. The sheet metal shearing machine according to claim 1, characterized in that: The two ends of the support plate (3.1) are respectively provided with a pair of threaded holes ( 3.1.1), the holding member (4) further comprises a C-shaped plate (4.1) whose bottom end is clamped to the two ends of the support plate (3.1), the bolts sleeved on the bottom plate of the C-shaped plate (4.1) are threadedly sleeved with the threaded holes (3.1.1), and the piston cylinder of the top-pressing telescopic cylinder (4.2) is fixed on the top surface of the C-shaped plate (4.1).

5. The sheet metal shearing machine according to claim 1, characterized in that: The shearing mechanism (2) comprises a door frame (2.1) whose bottom end is fixed to the top surface of the workbench (1) and is located at the front and rear sides of the blade plate (1.1), a knife plate (2.2) arranged in the inner cavity of the door frame (2.1) and located directly above the knife plate (1.1), a lifting and telescopic cylinder (2.3) whose piston cylinder is vertically fixed to the middle of the top surface of the door frame (2.1) and whose bottom end of the piston rod is fixed to the middle of the top surface of the knife plate (2.2), a linear bearing (2.4) fixed to the top surface of the door frame (2.1) near the front and rear ends, and a guide rod (2.5) slidably sleeved in the linear bearing (2.4) and whose bottom ends are fixed to the two ends of the top surface of the knife plate (2.2).

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