Cold-formed ultrahigh-strength plate cutting device

Abstract

The utility model provides a cold-forming ultrahigh-strength plate cutting device, which is characterized in that a lifting platform is fixedly connected with the top end of an upper cutter, lower cutters are respectively fixed at the front side and the rear side of the upper cutter on a lower die insert, and the lower die insert is detachably provided with a side wing gasket for supporting the side wing of a cold-forming ultrahigh-strength plate. The upper surface of the side wing gasket is higher than the upper surface of the side wing corresponding to the lower cutter, and the height difference is gradually increased from the middle to the outer side. The device can automatically cut off the cold-formed ultrahigh-strength plate, is simple in structure and convenient to mount and dismount, and can provide compensation capable of being optimized and adjusted for springback at the cut-off position of a part.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-strength steel plate profile processing equipment for automobiles, in particular to a device for automatically cutting off cold-formed ultra-high-strength plates. Background Art

[0002] Figure 1 It is a cold-formed ultra-high-strength plate to be cut continuously. Its cross-section is roughly in the shape of a Chinese character "J". It is made of ultra-high-strength martensitic steel with a yield strength of 1500Mpa. It is formed by a cold-forming roller pressing process and needs to be cut at the two dotted lines 13 in the figure. Two notches 14 are also opened in advance at the bends on both sides of the middle part 10 to avoid serious deformation of these two places during cutting. At the same time, in order to avoid scratches on personnel during transportation of the cut parts, it is also necessary to first cut a notch 12 on each of the two side wings 11 at the place to be cut, so that chamfers 121 can be directly formed at the two corners of the end of the part after cutting. Since the material used for the parts is very hard, it is easy to cause rebound deformation at the cutting line 13. Therefore, it is necessary to design a device that can not only automatically perform the cutting operation, but also provide optimized and adjustable compensation for the rebound at the cutting point. Utility Model Content

[0003] In view of this, the utility model proposes a cold-formed ultra-high-strength plate cutting device, which is specifically:

[0004] A cold-formed ultra-high-strength plate cutting device, wherein an intermediate platform, a lifting platform and a top platform are sequentially arranged above a base; the base fixes and supports the top platform through a support column, a cylinder body of a hydraulic cylinder is fixed on the top platform, a piston rod passes through the top platform and is fixedly connected to the lifting platform through a connecting assembly, and the lifting platform is driven to descend and rise by the hydraulic cylinder;

[0005] The middle platform is fixed to the base through two sides, the lower die insert is fixed on the base and is located directly below the middle platform, and the lower die insert supports the cold-formed ultra-high-strength plate to be cut through its top which is shaped like the product;

[0006] The lifting platform is fixedly connected to the top of the upper cutter, and the lower die insert is fixed with a lower cutter at the front and rear sides of the upper cutter respectively. The lower die insert is detachably installed with side wing gaskets for supporting the side wings of the cold-formed ultra-high-strength plate. The upper surface of the side wing gasket is higher than the upper surface of the side wing corresponding to the lower cutter, and the height difference gradually increases from the middle to the outside.

[0007] The middle platform is provided with a guide hole to provide guidance for the middle part of the upper cutter, and the lower surface of the lifting platform is also fixedly connected with a set of cutter support platforms connected to the upper part of the cutter.

[0008] The cutter support platform is symmetrically connected with a middle upper molded column and two side upper molded columns respectively passing through and guiding the middle platform on the front and rear sides with the upper cutter as the center.

[0009] The top end of the middle upper molded column is fixedly connected to the middle connecting platform, and a middle nitrogen cylinder is clamped between the center of the top end of the middle connecting platform and the cutter support platform. Two connecting rods are symmetrically arranged on both sides of the middle nitrogen cylinder, and the bottom end of each connecting rod is fixedly connected to the middle connecting platform. After the connecting rod slides upward through the cutter support platform and the lifting platform in turn, a middle return spring is provided on the rod body protruding from the upper surface of the lifting platform, and the bottom end of the middle return spring abuts against the lifting platform, and the top end abuts against the pressure cap fixed to the top end of the connecting rod.

[0010] A pressing cap is fixedly arranged on the top of each side wing upper molded column, and a side wing return spring is sleeved on the upper part of the side wing upper molded column, and the two ends of the side wing return spring respectively abut against the pressing cap and the middle platform; the upper surfaces of the pressing caps of the two side wing upper molded columns respectively abut against the two sides of the lower surface of the same side wing transition platform, and the side wing transition platform is fixed to the middle platform; two side wing nitrogen cylinders are also guided and penetrated on the side wing transition platform, and the upper part of each side wing nitrogen cylinder passes through the cutter support platform and the top end abuts against the lifting platform, and the lower end abuts against the top end of the corresponding side wing upper molded column.

[0011] There are also handles on both sides of the top platform.

[0012] The utility model can automatically cut off the cold-formed ultra-high-strength plate, has a simple structure, is easy to install and disassemble, and can provide compensation that can be optimized and adjusted for the springback at the cut-off point of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention. A person of ordinary skill in the art can obtain other relevant drawings based on these drawings without making any creative effort.

[0014] Figure 1 is a schematic diagram of a cold-formed ultra-high-strength plate to be cut;

[0015] Figure 2 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram after the hydraulic cylinder, top platform, support column and other components are hidden;

[0017] Figure 4 It is a schematic diagram of the main view of the core mechanism of the utility model;

[0018] Figure 5 The three-dimensional schematic diagram shows the core mechanism without the lifting platform and the cutter support platform;

[0019] Figure 6It is a three-dimensional schematic diagram of the lower mold insert.

[0020] Reference numerals in the figure: cold-formed ultra-high-strength plate 1; middle part 10; flank 11; cut 12; chamfer 121; cutting line 13; notch 14;

[0021] Base 21;

[0022] Intermediate platform 22; lifting platform 23; top platform 24; support column 25;

[0023] Lower die insert 3; lower cutter 31; blade 310; side wing gasket 32;

[0024] Upper cutter 4; cutter support platform 41;

[0025] The middle upper mold column 51; the middle connecting platform 52; the middle nitrogen cylinder 53; the middle return spring 54; the connecting rod 55; the pressing cap 551;

[0026] Side wing upper molded column 56; pressing cap 561; side wing return spring 57; side wing transition platform 58; side wing nitrogen cylinder 59;

[0027] Hydraulic cylinder 6; connecting assembly 7; handle 8. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] The utility model includes a base 21, and an intermediate platform 22, a lifting platform 23 and a top platform 24 are sequentially arranged above the base 21; the base 21 fixes and supports the top platform 24 through a support column 27, the cylinder body of the hydraulic cylinder 6 is fixed on the top platform 24, the piston rod passes through the top platform 24 and is fixedly connected to the lifting platform 23 through a connecting component 7, and the lifting platform 23 is driven by the hydraulic cylinder 6 to descend and rise.

[0030] The middle platform 22 is fixed to the base 21 at both sides, the lower die insert 3 is fixed on the base 21 and is located directly below the middle platform 22, and the lower die insert 3 supports the cold-formed ultra-high-strength plate 1 to be cut through its top which is shaped like the product;

[0031] The lifting platform 23 is fixedly connected to the top of the upper cutter 4, and the lower mold insert 3 is fixed with a lower cutter 31 at the front and rear sides of the upper cutter 4, see Figure 6As shown, the lower die insert 3 is detachably installed with a wing gasket 32 ​​for supporting the wing of the cold-formed ultra-high-strength plate 1. The upper surface of the wing gasket 32 ​​is higher than the upper surface of the wing corresponding to the lower cutting knife 31, and the height difference gradually increases from the middle to the outside. Therefore, when the cold-formed ultra-high-strength plate 1 is cut, the part between the two cutting lines 13 of the cold-formed ultra-high-strength plate 1 is driven by the downward pressure of the upper cutting knife 4. The lower part of the plate body between the cutting line 13 and the end of the gasket on the corresponding side provides a certain deformation space due to the above-mentioned height difference, thereby realizing one-directional compensation for the rebound of the product. By replacing the wing gaskets 32 of different thicknesses to adjust the height difference, the compensation size can also be optimized.

[0032] Since the overall height of the upper cutter 4 is relatively large, in order to prevent it from being damaged by bending and deformation when pressed down for cutting, in addition to opening a guide hole in the middle platform 22 to provide guidance for the middle part of the upper cutter 4, a cutter support platform 41 connected to the upper part of the upper cutter 4 is also fixedly connected to the lower surface of the lifting platform 23, which can not only enhance the strength of the upper cutter 4 itself, but also enhance the connection firmness between the upper cutter 4 and the lifting platform 23.

[0033] like Figure 4 and Figure 5 As shown, the cutter support platform 41 is symmetrically connected to a middle upper molded column 51 and two side upper molded columns 56 that pass through and guide the middle platform 22 respectively on the front and rear sides with the cutter 4 as the center. Figure 5 For the sake of clarity, only the middle upper mold column 51 and the two side upper mold columns 56 located at the rear side of the upper cutter 4 are shown. The middle upper mold column 51 is used to press against the middle of the cold-formed ultra-high-strength plate 1, and the two side upper mold columns 56 are used to press against the two side wings 11 of the cold-formed ultra-high-strength plate 1.

[0034] Furthermore, the top of the middle upper molded column 51 is fixedly connected to the middle connecting platform 52, and a middle nitrogen cylinder 53 is sandwiched between the center of the top of the middle connecting platform 52 and the cutter support platform 41. Two connecting rods 55 are symmetrically arranged on both sides of the middle nitrogen cylinder 53, and the bottom end of each connecting rod 55 is fixedly connected to the middle connecting platform 52. After the connecting rod 55 slides upward through the cutter support platform 41 and the lifting platform 23 in sequence, the rod body protruding from the upper surface of the lifting platform 23 is sleeved with a middle return spring 54, and the bottom end of the middle return spring 54 abuts against the lifting platform 23, and the top end abuts against the pressing cap 551 fixed to the top end of the connecting rod 55. The middle return spring 54 provides return elastic force for the upper cutter 4, and the middle nitrogen cylinder 53 provides downward pressure with a certain buffer for the upper cutter 4.

[0035] Furthermore, a pressing cap 561 is fixedly provided on the top of each side wing upper molded column 56, and a side wing return spring 57 is sleeved on the upper part of the side wing upper molded column 56. The two ends of the side wing return spring 57 respectively abut against the pressing cap 561 and the bottom of the accommodating hole (not shown in the figure) of the middle platform 22 for accommodating the side wing return spring 57, and the side wing return spring 57 provides return elastic force for the corresponding side wing upper molded column 56.

[0036] The upper surfaces of the pressing caps 561 of the two side wing upper molding columns 56 are respectively abutted against the two sides of the lower surface of the same side wing transition platform 58. The side wing transition platform 58 is fixed to the middle platform 22, and the side wing transition platform 58 limits the rising limit position of the side wing upper molding column 56; two side wing nitrogen cylinders 59 are also guided and penetrated on the side wing transition platform 58. After the upper part of each side wing nitrogen cylinder 59 passes through the cutter support platform 41, the top end abuts against the lifting platform 23, and the lower end abuts against the top end of the corresponding side wing upper molding column 56. The side wing nitrogen cylinder 59 provides a downward pressure with a certain buffer for the corresponding side wing upper molding column 56.

[0037] like Figure 2 As shown, handles 8 are also fixedly provided on both sides of the top platform 24 to facilitate the transportation of the entire utility model.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cold-formed ultra-high-strength plate cutting device, characterized in that: An intermediate platform, a lifting platform and a top platform are arranged above the base in sequence; the base fixes and supports the top platform through a support column, the cylinder body of the hydraulic cylinder is fixed on the top platform, the piston rod passes through the top platform and is fixedly connected to the lifting platform through a connecting assembly, and the lifting platform is driven to descend and rise by the hydraulic cylinder; The middle platform is fixed to the base through two sides, the lower die insert is fixed on the base and is located directly below the middle platform, and the lower die insert supports the cold-formed ultra-high-strength plate to be cut through its top which is shaped like the product; The lifting platform is fixedly connected to the top of the upper cutter, and the lower die insert is fixed with a lower cutter at the front and rear sides of the upper cutter respectively. The lower die insert is detachably installed with side wing gaskets for supporting the side wings of the cold-formed ultra-high-strength plate. The upper surface of the side wing gasket is higher than the upper surface of the side wing corresponding to the lower cutter, and the height difference gradually increases from the middle to the outside.

2. A cold-formed ultra-high-strength plate cutting device according to claim 1, characterized in that: The middle platform is provided with a guide hole to provide guidance for the middle part of the upper cutter, and the lower surface of the lifting platform is also fixedly connected with a set of cutter support platforms connected to the upper part of the cutter.

3. A cold-formed ultra-high-strength plate cutting device according to claim 2, characterized in that: The cutter support platform is symmetrically connected with a middle upper molded column and two side upper molded columns respectively passing through and guiding the middle platform on the front and rear sides with the upper cutter as the center.

4. A cold-formed ultra-high-strength plate cutting device according to claim 3, characterized in that: The top end of the middle upper molded column is fixedly connected to the middle connecting platform, and a middle nitrogen cylinder is clamped between the center of the top end of the middle connecting platform and the cutter support platform. Two connecting rods are symmetrically arranged on both sides of the middle nitrogen cylinder, and the bottom end of each connecting rod is fixedly connected to the middle connecting platform. After the connecting rod slides upward through the cutter support platform and the lifting platform in turn, a middle return spring is provided on the rod body protruding from the upper surface of the lifting platform, and the bottom end of the middle return spring abuts against the lifting platform, and the top end abuts against the pressure cap fixed to the top end of the connecting rod.

5. The cold-formed ultra-high-strength plate cutting device according to claim 3, characterized in that: A pressing cap is fixedly arranged on the top of each side wing upper molded column, and a side wing return spring is sleeved on the upper part of the side wing upper molded column, and the two ends of the side wing return spring respectively abut against the pressing cap and the middle platform; the upper surfaces of the pressing caps of the two side wing upper molded columns respectively abut against the two sides of the lower surface of the same side wing transition platform, and the side wing transition platform is fixed to the middle platform; two side wing nitrogen cylinders are also guided and penetrated on the side wing transition platform, and the upper part of each side wing nitrogen cylinder passes through the cutter support platform and the top end abuts against the lifting platform, and the lower end abuts against the top end of the corresponding side wing upper molded column.

6. The cold-formed ultra-high-strength plate cutting device according to claim 1, characterized in that: There are also handles on both sides of the top platform.

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