Side punching die hidden in die cavity

Abstract

The utility model discloses a side punching die hidden in a die cavity, which comprises an upper die holder and a lower die holder, an upper die mounting plate is arranged on the upper die holder, an end punch holder is arranged on the upper die mounting plate, a punch is arranged on the end punch holder, an upper die floating forming block is arranged on the upper die mounting plate through a plurality of nitrogen springs, and a lower die floating forming block is arranged on the lower die mounting plate through a plurality of nitrogen springs. An end driving block for driving the end punch seat is arranged on the upper surface of the upper die floating forming block; a pair of side punch seats is arranged on the upper die seat, side punch pieces are movably arranged on the side punch seats, and V-shaped guide grooves are formed in the side punch pieces. The lower die base is provided with a lower forming block matched with the upper die floating forming block. A side driving block for driving the side punch piece is arranged on the lower die holder; the lower forming block is provided with an end punching die button matched with a punch of the end punch base. And the lower forming block is detachably provided with a side punching die button matched with the punch on the side punch seat.

Description

Technical Field

[0001] The utility model relates to stamping processing equipment, in particular to a side punching die with a hidden hole in a die cavity. Background Art

[0002] Typically, when punching sheet metal parts, the side punching die structure is designed to operate with the upper and lower dies closed. A driver mounted on the upper die base drives the punching bevel, which then punches the side hole. This side punching bevel layout has limitations, requiring only placement around the outer perimeter of the part. This makes the die structure less compact and requires more machine space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a compact side punching die with a hidden cavity.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a side punching die hidden in the die cavity, including an upper die base and a lower die base, an upper die mounting plate is provided on the upper die mounting plate, an end punch seat is provided on the upper die mounting plate, a punch is provided on the end punch seat, an upper die floating forming block is provided on the upper die mounting plate through a number of nitrogen springs, at least one pair of limiting guide columns is provided on the upper die mounting plate, a guide hole matching the limiting guide column is provided on the upper die floating forming block, an end driving block for driving the end punch seat is provided on the upper surface of the upper die floating forming block, and an avoidance hole for avoiding the punch is provided on the upper die floating forming block.

[0005] A pair of side punch seats are provided on the upper die seat, and side punch parts are movably provided on the side punch seats, and V-shaped guide grooves are provided on the side punch parts; a pair of upper guide positioning columns are provided on the upper die floating forming block, and the upper guide positioning columns are provided with inverted cone-shaped positioning grooves, and a pair of lower guide positioning columns matching with the upper guide positioning columns are provided on the lower die seat, and a lower forming block matching with the upper die floating forming block is provided on the lower die seat; a side driving block for driving the side punch parts is provided on the lower die seat; an end punching die button matching with the punch of the end punch seat is provided on the lower forming block; a side punching die button matching with the punch on the side punch seat is detachably provided on the lower forming block.

[0006] As a preferred solution, the lower die base is provided with a plurality of position-adjustable limiting devices around the lower forming block.

[0007] As a preferred solution, the limiting device includes an L-shaped limiting block arranged on the lower die base, a waist-shaped hole is provided at the lower part of the limiting block, and an adjusting bolt is provided on the lower die base to pass through the waist-shaped hole to lock the limiting block.

[0008] As a preferred solution, the lower forming block is provided with a pair of positioning pins that match the positioning holes on the workpiece, and the upper mold lifting block is provided with avoidance holes for avoiding the positioning pins.

[0009] As a preferred solution, the lower die base is provided with a mounting groove, the lower forming block is detachably arranged in the mounting groove, and the lower die base is detachably provided with a side positioning block on the wall of the mounting groove for positioning the lower forming block.

[0010] The beneficial effects of the utility model are:

[0011] Since the upper die mounting plate is provided with an end punch seat, the end punch seat is provided with a punch, the upper surface of the upper die floating forming block is provided with an end driving block for driving the end punch seat, the upper die floating forming block is provided with an avoidance hole for avoiding the punch, and the lower die seat is provided with a lower forming block that matches the upper die floating forming block; the lower forming block is provided with an end punching die button that matches the punch of the end punch seat; the upper die floating forming block drives the end driving block and the end punch seat to move when it moves up and down, so that the punch on the end punch seat hidden in the upper part of the upper die floating forming block completes the end punching action. Compared with the punching bevel die that can only be arranged around the outer circle of the part, the die structure is compact, the machine size occupied by the die is reduced, and the machine specification requirements for the hydraulic press can be reduced, thereby reducing the processing cost.

[0012] A pair of upper guide positioning columns are provided on the upper die floating forming block, and the upper guide positioning columns are provided with inverted frustum-shaped positioning grooves. A pair of lower guide positioning columns that match the upper guide positioning columns are provided on the lower die base, so that the mold closing accuracy of the upper die floating block and the lower forming block is higher, ensuring the punching accuracy.

[0013] Since the lower die base is provided with a plurality of position-adjustable limiting devices around the lower forming block, the workpiece positioning operation is facilitated.

[0014] Since the lower forming block is provided with a pair of positioning pins that match the positioning holes on the workpiece, and the upper mold lifting block is provided with avoidance holes for avoiding the positioning pins, the workpiece is accurately positioned and does not shift during processing.

[0015] Since the lower die base is provided with a mounting groove, the lower forming block is detachably arranged in the mounting groove, and the lower die base is detachably provided with a side positioning block on the wall of the mounting groove for positioning the lower forming block. By selecting a suitable side positioning block, the installation of the lower forming block can be conveniently and accurately achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the processed product.

[0017] Figure 2 This is a structural diagram of the processed product from another angle.

[0018] Figure 3 Schematic diagram of the upper mold structure.

[0019] Figure 4 Schematic diagram of the lower mold structure.

[0020] In the figure: 1 upper die seat, 2 lower die seat, 3 upper die mounting plate, 4 end punch seat, 5 punch, 6 upper die floating forming block, 7 limit guide column, 8 end drive block, 9 side punch seat, 10 side punch piece, 11 lower guide positioning column,

[0021] 12 lower forming block; 13 side positioning block, 14 positioning pin, 15 adjusting bolt, 16 side driving block; 17 nitrogen spring, 18 end punching die button; 19 side punching die button. DETAILED DESCRIPTION

[0022] The specific implementation scheme of the present utility model is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-4 As shown, the side punching die hidden in the die cavity includes an upper die base 1 and a lower die base 2. The upper die base 1 is provided with an upper die mounting plate 3, the upper die mounting plate 3 is provided with an end punch seat 4, the end punch seat 4 is provided with a punch, the upper die mounting plate 3 is provided with an upper die floating forming block 6 through a number of nitrogen springs 17, the upper die mounting plate 3 is provided with at least one pair of limiting guide columns 7, the upper die floating forming block 6 is provided with a guide hole matching the limiting guide column 7, the upper surface of the upper die floating forming block 6 is provided with an end driving block 8 for driving the end punch seat 4, and the upper die floating forming block 6 is provided with an avoidance hole for avoiding the punch.

[0024] A pair of side punch seats 9 are provided on the upper die seat 1, and side punch parts 10 are movably provided on the side punch seats 9, and the side punch parts 10 are provided with V-shaped guide grooves; a pair of guide positioning columns are provided on the upper die floating forming block 6, and the guide positioning columns are provided with inverted frustum-shaped positioning grooves.

[0025] The lower die base 2 is provided with a lower forming block 12 that mates with the upper die lift forming block 6. The lower die base 2 is provided with a mounting slot in which the lower forming block 12 is removably mounted. Side positioning blocks 13 are removably provided on the walls of the mounting slot to position the lower forming block 12. The lower forming block 12 is provided with a pair of locating pins 14 that mate with locating holes in the workpiece, and the upper die lift block is provided with clearance holes to allow for the locating pins 14 to pass through.

[0026] The lower die base 2 is provided with several adjustable position limit devices around the lower forming block 12. The limit devices include an L-shaped limit block provided on the lower die base 2, a waist-shaped hole provided at the lower portion of the limit block, and an adjusting bolt 15 provided on the lower die base 2 that passes through the waist-shaped hole to lock the limit block.

[0027] The lower die base 2 is provided with a side driving block 16 for driving the side punch member 10; the lower forming block 12 is provided with an end punching die button 18 that cooperates with the punch of the end punch base 4; the lower forming block 12 is detachably provided with a side punching die button 19 that cooperates with the punch on the side punch base 9.

[0028] 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 side punching die with hidden holes in the die cavity, comprising an upper die base and a lower die base, wherein the upper die base is provided with an upper die mounting plate, characterized in that: The upper die mounting plate is provided with an end punch seat, the end punch seat is provided with a punch, the upper die mounting plate is provided with an upper die floating forming block through a plurality of nitrogen springs, the upper die mounting plate is provided with at least one pair of limiting guide columns, the upper die floating forming block is provided with a guide hole that matches the limiting guide column, the upper surface of the upper die floating forming block is provided with an end driving block for driving the end punch seat, and the upper die floating forming block is provided with an avoidance hole for avoiding the punch. A pair of side punch seats are provided on the upper die seat, and side punch parts are movably provided on the side punch seats, and V-shaped guide grooves are provided on the side punch parts; a pair of upper guide positioning columns are provided on the upper die floating forming block, and the upper guide positioning columns are provided with inverted cone-shaped positioning grooves, and a pair of lower guide positioning columns matching with the upper guide positioning columns are provided on the lower die seat, and a lower forming block matching with the upper die floating forming block is provided on the lower die seat; a side driving block for driving the side punch parts is provided on the lower die seat; an end punching die button matching with the punch of the end punch seat is provided on the lower forming block; a side punching die button matching with the punch on the side punch seat is detachably provided on the lower forming block.

2. The side punching die with hidden holes in the die cavity according to claim 1, characterized in that: The lower die base is provided with a plurality of position-adjustable limiting devices around the lower forming block.

3. The side punching die with hidden holes in the die cavity according to claim 2, characterized in that: The limiting device includes an L-shaped limiting block arranged on the lower die base, a waist-shaped hole is provided at the lower part of the limiting block, and an adjusting bolt is provided on the lower die base to pass through the waist-shaped hole to lock the limiting block.

4. The side punching die with hidden holes in the die cavity according to claim 1, characterized in that: The lower forming block is provided with a pair of positioning pins matched with positioning holes on the workpiece, and the upper mold floating block is provided with avoidance holes for avoiding the positioning pins.

5. The side punching die with hidden holes in the die cavity according to claim 1, characterized in that: The lower die base is provided with a mounting groove, the lower forming block is detachably arranged in the mounting groove, and the lower die base is detachably provided with a side positioning block for positioning the lower forming block on the wall of the mounting groove.

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