Sheet stamping and cutting mechanism

Abstract

The utility model discloses a plate stamping and cutting mechanism which comprises an upper die base and a lower die base, an upper mounting groove is formed in the upper die base, a plurality of pressing springs are arranged in the upper mounting groove, the end portions of the pressing springs are connected with a floating pressure plate, and at least one pair of upper guide columns matched with guide holes in the floating pressure plate are arranged in the upper mounting groove. An upper cutting block for pressing the material plate is arranged on the upper die holder; a lower mounting groove is formed in the lower die holder, a floating base is arranged in the lower mounting groove, a plurality of floating springs for jacking the floating base are arranged in the lower mounting groove, a plurality of conveying columns are arranged on the floating base in parallel, a plurality of conveying rollers are arranged on the conveying columns, and a plurality of supporting plates parallel to the conveying columns are arranged in the lower mounting groove; two pairs of advanced pressing pins penetrating out of the floating pressing block are arranged in the upper mounting groove, and a plurality of lower pressing blocks matched with the advanced pressing pins on the upper die holder are arranged on the floating base; and a lower cutting block which is matched with the upper cutting block to press the material plate is arranged on the lower die holder.

Description

Technical Field

[0001] The utility model relates to stamping processing equipment, in particular to a sheet metal stamping and cutting mechanism. Background Art

[0002] During the sheet metal punching and blanking process, after the coil material is fed, the existing punching mechanism presses down to retract the floating mechanism, and then the blade works to complete the blanking.

[0003] However, this type of structure has the following disadvantages: when the upper mold is pressed down, the blank will be sandwiched between the pressing plate and the lifting mechanism and shrink downward together, causing damage and scratches on the surface of the blank. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a plate material stamping and cutting mechanism which can ensure the surface quality of the plate material.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a sheet metal stamping and cutting mechanism, comprising an upper die base arranged on an upper die mounting base and a lower die base arranged on a lower die mounting base, an upper mounting groove is provided in the upper die base, a plurality of press springs are provided in the upper mounting groove, the ends of the press springs are connected to a floating press plate, at least one pair of upper guide columns matching with guide holes on the floating press plate are provided in the upper mounting groove; a pair of elastic locating pins are provided in the upper mounting groove, and avoidance holes for avoiding the elastic locating pins are provided on the floating press plate, and an upper cutting block for pressing the sheet is provided on the upper die base;

[0006] The lower die base is provided with a lower mounting groove, the lower mounting groove is provided with a floating base, the lower mounting groove is provided with a number of lifting springs for lifting the floating base, the floating base is provided with a number of conveying columns in parallel, the conveying columns are provided with a number of conveying rollers, the lower mounting groove is provided with a number of support plates parallel to the conveying columns, and the support plates are provided with a feeding slope on the feeding side; the upper mounting groove is provided with two pairs of advance pressing pins that pass through the floating pressing block, the floating base is provided with a number of lower pressing blocks that cooperate with the advance pressing pins on the upper die base; the lower die base is provided with a lower cutting block that cooperates with the upper cutting block to press the material plate.

[0007] As a preferred solution, the lower die base is provided with a plurality of guide columns, and the floating base is provided with a plurality of guide holes that match the guide columns.

[0008] As a preferred solution, the discharge end of the conveying train is inclined downward.

[0009] As a preferred solution, a pair of guide rollers are respectively provided on the lower die base on both sides of the feed and discharge.

[0010] As a preferred solution, the arrangement plane of the pair of guide rollers on the discharge side of the lower die base is inclined downward along the discharge direction.

[0011] As a preferred solution, a feed guide block is provided at the feed end of the conveying train.

[0012] As a preferred solution, mold closing guide columns are respectively provided on the four corners of the lower mold base, and the upper mold base is provided with a mold closing guide base that cooperates with each mold closing guide column.

[0013] The beneficial effects of the utility model are:

[0014] This pressing and feeding mechanism presses down the floating base before the floating pressing plate contacts the part during the downward movement of the upper die, preventing the material from contacting and rubbing between the floating pressing plate and the floating base, thereby avoiding scratches and injuries.

[0015] Since the lower die base is provided with a plurality of guide posts, the floating base is provided with a plurality of guide holes matched with the guide posts, so that the movement of the floating base is more stable.

[0016] Since the discharging end of the conveying train is tilted downward, the discharging is smoother.

[0017] Since a pair of guide rollers are respectively provided on the feeding and discharging sides of the lower die base, the conveying resistance of the material sheet is smaller.

[0018] Since the arrangement plane of the pair of guide rollers on the discharge side of the lower die base is tilted downward along the discharge direction, the discharge is smoother.

[0019] Since the feeding guide block is provided at the feeding end of the conveying train, the feeding is smoother.

[0020] Since the four corners of the lower die base are respectively provided with mold closing guide columns, and the upper die base is provided with a mold closing guide seat matched with each mold closing guide column, the mold closing accuracy of the workpiece is higher, and the processing accuracy is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the upper mold.

[0022] Figure 2 Schematic diagram of the structure of the lower mold.

[0023] In the figure: 1 upper die base, 2 lower die base, 3 press spring, 4 floating press plate, 5 upper guide column; 6 elastic positioning pin, 7 upper cutting block;

[0024] 8 floating base, 9 floating spring, 10 conveying column, 11 conveying roller, 12 mold closing guide seat; 13 support plate, 14 advance pressing pin, 15 lower pressing block; 16 lower cutting block; 17 guide roller, 18 mold closing guide column. DETAILED DESCRIPTION

[0025] The specific implementation scheme of the present utility model is described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-2 As shown, a sheet metal stamping and cutting mechanism comprises an upper die base 1 arranged on an upper die mounting base and a lower die base 2 arranged on a lower die mounting base, an upper mounting groove is provided in the upper die base 1, a plurality of press springs 3 are provided in the upper mounting groove, the ends of the press springs 3 are connected to a floating press plate 4, at least one pair of upper guide columns 5 are provided in the upper mounting groove and matched with guide holes on the floating press plate 4; a pair of elastic locating pins 6 are provided in the upper mounting groove, and avoidance holes for avoiding the elastic locating pins 6 are provided on the floating press plate 4, and an upper cutting block 7 for pressing the sheet metal is provided on the upper die base 1;

[0027] A lower mounting groove is provided on the lower die base 2, in which a floating base 8 is provided, and in which a number of floating springs 9 for lifting the floating base 8 are provided. A number of conveying columns 10 are arranged in parallel on the floating base 8, and a number of conveying rollers 11 are provided on the conveying columns 10. The discharge end of the conveying column 10 is tilted downward.

[0028] The lower mounting groove is provided with several support plates 13 parallel to the conveying column 10, and the support plates 13 are provided with a feed slope on the feed side; the upper mounting groove is provided with two pairs of advance pressing pins 14 that pass through the floating pressing block, and the floating base 8 is provided with several lower pressing blocks 15 that cooperate with the advance pressing pins 14 on the upper die base 1; the lower die base 2 is provided with a lower cutting block 16 that cooperates with the upper cutting block 7 to press the material plate.

[0029] The lower die base 2 is equipped with a pair of guide rollers 17 on both the feed and discharge sides. The guide rollers on the discharge side of the lower die base 2 are positioned with a plane that slopes downward in the discharge direction. The lower die base 2 is equipped with several guide posts, and the floating base 8 has guide holes that mate with each of these posts. Clamping guide posts 18 are located at each corner of the lower die base 2, and the upper die base 1 is equipped with a clamping guide base 12 that mates with each of these posts 18.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A sheet metal stamping and cutting mechanism, comprising an upper die base mounted on an upper die mounting base and a lower die base mounted on a lower die mounting base, wherein an upper mounting groove is provided in the upper die base, and characterized in that: The upper mounting groove is provided with a plurality of press springs, the ends of the press springs are connected to a floating press plate, and the upper mounting groove is provided with at least a pair of upper guide columns that match the guide holes on the floating press plate; the upper mounting groove is provided with a pair of elastic positioning pins, and the floating press plate is provided with avoidance holes for avoiding the elastic positioning pins, and the upper die base is provided with an upper cutting block that presses the plate; The lower die base is provided with a lower mounting groove, the lower mounting groove is provided with a floating base, the lower mounting groove is provided with a number of lifting springs for lifting the floating base, the floating base is provided with a number of conveying columns in parallel, the conveying columns are provided with a number of conveying rollers, the lower mounting groove is provided with a number of support plates parallel to the conveying columns, and the support plates are provided with a feeding slope on the feeding side; the upper mounting groove is provided with two pairs of advance pressing pins that pass through the floating pressing block, the floating base is provided with a number of lower pressing blocks that cooperate with the advance pressing pins on the upper die base; the lower die base is provided with a lower cutting block that cooperates with the upper cutting block to press the material plate.

2. A sheet metal stamping and cutting mechanism according to claim 1, characterized in that: The lower die seat is provided with a plurality of guide columns, and the floating base is provided with a plurality of guide holes matched with the guide columns.

3. A sheet metal stamping and cutting mechanism according to claim 1, characterized in that: The discharge end of the conveying train is inclined downward.

4. A sheet metal stamping and cutting mechanism according to claim 1, characterized in that: A pair of guide rollers are respectively provided on the lower die base at both sides of the feed and discharge.

5. A sheet metal stamping and cutting mechanism according to claim 4, characterized in that: A feed guide block is provided at the feed end of the conveying train.

6. A sheet metal stamping and cutting mechanism according to any one of claims 1 to 5, characterized in that: The four corners of the lower die base are respectively provided with mold closing guide columns, and the upper die base is provided with a mold closing guide base matched with each mold closing guide column.

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