CN213436673U - Compound die for bidirectional irregular U-shaped part - Google Patents

Abstract

The utility model relates to a compound die of a bidirectional irregular U-shaped piece, which comprises an upper die plate, a male die fixing plate, a backing plate, a pressure plate, a female die fixing plate, a guiding device and a mandril, wherein a blanking structure for cutting a workpiece and a drawing structure for drawing the blanked workpiece are arranged between the male die fixing plate and the female die fixing plate, and a bending structure for bending the drawn workpiece is arranged on the drawing structure; the bending structure comprises bending male dies arranged on the two concave die plates I and bending female dies arranged at the lower ends of the male dies and the female dies in the circumferential direction, and the bending male dies are arranged in guide grooves formed in the concave die plates I of the stretching female dies in a penetrating mode. The utility model discloses simple structure, convenient to use makes the work piece of multichannel process can accomplish processing in one set of mould, has improved the machining efficiency of work piece, is worth promoting.

Description

Compound die for bidirectional irregular U-shaped part

Technical Field

The utility model relates to a mould manufacturing technical field, in particular to compound die of two-way irregular U-shaped spare.

Background

At present, two sets of dies or a progressive die with a complex structure are used for blanking, deep drawing and bending the bidirectional irregular U-shaped part in the market, and the two processes are complex and low in efficiency, so that the stamping and forming die for the edge semi-cylindrical concave workpiece with simple process and high efficiency is urgently needed in the market.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problems existing in the prior art and providing a compound die of a bidirectional irregular U-shaped piece.

The technical scheme of the utility model is that:

a compound die for a bidirectional irregular U-shaped piece comprises an upper die plate, a male die fixing plate, a base plate, a pressure plate, a female die fixing plate, a lower die plate, a guide device and a push rod, wherein a blanking structure for cutting a workpiece and a drawing structure for drawing the blanked workpiece are arranged between the male die fixing plate and the female die fixing plate from outside to inside, and a bending structure for bending the drawn workpiece is arranged on the drawing structure;

the drawing structure comprises a vertically arranged punch-die and a correspondingly arranged drawing die on a die fixing plate, wherein the bottom of an upper die plate is fixed with the vertically arranged punch-die and the drawing die, the drawing die comprises two vertically and parallelly arranged die plates I, a push plate is arranged between the two die plates I, and the push plate is positioned under the punch-die;

the blanking structure comprises two blanking male dies symmetrically arranged on two sides of a male die and a blanking female die matched with the blanking male dies, the upper ends of the blanking male dies are fixed to the bottom of a male die fixing plate, the blanking female die comprises two female die plates II fixed to the female die fixing plate, a gap is formed between each female die plate II and the corresponding female die plate I, the blanking male dies are located right above the gaps, and the side, facing the female die plates I, of each blanking male die is an inclined surface;

the bending structure comprises a bending male die and a bending female die, wherein the bending male die is arranged on two female die plates I, the bending female die is arranged at the lower end of the male die in the circumferential direction, the bending male die is arranged in a guide groove formed in the female die plates I in a penetrating mode, a pulley is arranged at one end, away from the bending female die, of the bending male die, a groove I is formed in one surface of the bending male die in the moving direction, a limiting pin II is arranged in the groove I, and one end, away from the groove I, of the limiting pin II is; the side face of one end, provided with the pulley, of the bending male die is provided with a baffle I parallel to the end part of the bending male die, a baffle II parallel to the baffle I is fixed in the guide groove, and a return spring is connected between the baffle I and the baffle II.

Preferably, a vertical ejector rod penetrates through the female die fixing plate, the top of the ejector rod is connected with the bottom of the push plate, and the push plate can slide up and down through the ejector rod.

Preferably, a spring is connected between the pressure plate and the punch plate, the pressure plate is connected to the lower end of a vertically arranged pull rod, the upper end of the pull rod penetrates through a through groove sliding connection formed in the punch plate and the base plate, a limiting groove is formed in the bottom of the pressure plate, a limiting pin I is arranged below the limiting groove, and the limiting pin I is fixed on the blanking female die.

Compared with the prior art, the utility model provides a pair of compound die of two-way irregular U-shaped spare, its beneficial effect is:

1. the utility model discloses simple structure, convenient to use.

2. The utility model discloses a blanking structure, deep-drawing structure and bending structure in this mould process the work piece, make the work piece of multichannel process can accomplish processing in one set of mould, have improved the machining efficiency of work piece.

3. The utility model discloses the practicality is strong, is worth promoting.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the workpiece of the present invention;

fig. 3 is a partial enlarged view of a portion a in fig. 1 according to the present invention.

Detailed Description

An embodiment of the present invention will be described in detail with reference to fig. 1 to 3, but it should be understood that the scope of the present invention is not limited by the embodiment.

As shown in fig. 1 and 3, the utility model provides a pair of compound die of two-way irregular U-shaped spare, including cope match-plate pattern 5, punch plate 3, backing plate 4, press flitch 1, die holder, the lower bolster, guider, ejector pin 19, guider includes guide pillar 10 and guide pin bushing 11, cope match-plate pattern 5 and lower bolster pass through the guide pillar guide pin bushing connection, backing plate 4 and punch plate 3 are fixed on cope match-plate pattern 5 by cylindric lock 6 and bolt 9, be provided with the blanking structure of deciding the work piece and carry out the deep-drawing structure of deep-drawing to the work piece after the blanking by outer and interior between punch plate 3 and the die holder, the structural bending structure that is used for bending to the work piece after the drawing that is provided with of deep-drawing.

The drawing structure comprises a punch-die 13, the top of the punch-die 13 penetrates through mounting holes formed in a punch-die fixing plate 3 and a backing plate 4 and then is fixed with the bottom of an upper die plate 5 through a screw 9, a stretching die correspondingly arranged on a die-die fixing plate below the punch-die 13 comprises two vertical and parallel die plates I18, a push plate 20 is arranged between the two die plates I18, and the push plate 20 is located under the punch-die 13.

The blanking structure comprises two blanking convex dies 14 symmetrically arranged on two sides of the male die 13 and a blanking concave die matched with the blanking convex dies 14, the upper ends of the blanking convex dies 14 are fixed to the bottom of the male die fixing plate 3, the blanking concave die comprises two concave die plates II15 fixed to the female die fixing plate, a gap is formed between each concave die plate II15 and the corresponding concave die plate I18, the blanking convex dies 14 are located right above the gaps, and one sides, facing the concave die plates I18, of the blanking convex dies 14 are inclined planes.

As shown in fig. 3, the bending structure includes a bending male die 17 disposed on two female die plates I18 and a bending female die disposed circumferentially at the lower end of the male die 13, the bending male die 17 is inserted into a guide groove formed in the female die plate I18, a pulley 16 is disposed at one end of the bending male die 17 away from the bending female die, a groove I is formed in one surface of the bending male die 17 along a moving direction, a limit pin II21 is disposed in the groove I, and one end of the limit pin II21 away from the groove I is fixed to the inner wall of the guide groove, which is used for preventing the bending male die 17 from being reset too much, so that the pulley 16 on the bending male die 17 cannot be pressed when the blanking male die 14; the side face of one end, provided with the pulley 16, of the bending male die 17 is provided with a baffle I parallel to the end part of the bending male die 17, a baffle II parallel to the baffle I is fixed in the guide groove, a return spring 22 is connected between the baffle I and the baffle II, and when the blanking male die 14 descends, the inclined surface of the blanking male die 14 is in contact with the roller 16 and pushes the bending male die 17 to move along the guide groove.

Wherein, for the convenience of unloading, wear to be equipped with vertical ejector pin 19 on the die fixing plate, ejector pin 19 top and push pedal 20 bottom are connected, and the bottom and the lower bolster of ejector pin 19 are fixed, and push pedal 20 can slide from top to bottom through ejector pin 19.

The spring 12 is connected between the pressure plate 1 and the punch retainer 3, and the spring 12 is used for ensuring that the pressure plate always presses a blank when the upper die base continues to move downwards after blanking and blanking, and ensuring that the upper die has a larger downward space after blanking so as to carry out the following process; the pressure flitch 1 is connected at the 2 lower extremes of pull rod of vertical setting, and the logical groove sliding connection who sets up on punch plate 3 and the backing plate 4 is passed to the upper end of pull rod 2, and pressure flitch 1 bottom is provided with the spacing groove, and the spacing groove below is provided with spacer pin I23, and spacer pin I23 is fixed on the blanking die, and spacer pin I23 plays spacing effect when the pay-off.

Principle of operation

The utility model discloses when using, as shown in fig. 1, in operation, cope match-plate pattern 5 downstream, at first cut off the blanking by blanking terrace die 14 and blanking die to the work piece, namely blanking terrace die 14 moves down and passes pressure flitch 1, blanking terrace die 14 and blanking die's die block II15 decide the blank between die block II15 and pressure flitch 1, the blank after cutting off can be pressed to the U type inslot that die block I18 and push pedal 20 formed by punch die 13, then carry out the deep-drawing by punch die 13 and deep-drawing die to the work piece blank after cutting off, namely punch die 13 gets into between two die blocks 18 and stretches the work piece blank into U type spare; the upper die continues to move downwards, the inclined surface on the blanking convex die 14 presses the pulley 16 to push the bending convex die 17 to move along the guide groove on the concave die plate I18 to the axis direction of the convex-concave die 13, the irregular U-shaped bending of the edge of a workpiece is completed, the workpiece is processed, then the upper die plate 5 moves upwards, the blanking convex die 14 gradually leaves the pulley 16, the bending convex die moves outwards under the action of a spring, the displacement of the bending convex die is limited by the limiting pin 21, and the blanking convex die 14 is guaranteed to continuously push the bending convex die 17 to move along the guide groove in the next work; the upper die continues to move upwards, when the upper die plate 5 reaches the initial position, the material can be unloaded, the inclined surface and the pulley mechanism on the blanking convex die 14 are ingeniously utilized to push the bending convex die 17 to move towards the axis of the convex-concave die along the guide groove on the drawing concave die, and irregular U-shaped bending is carried out on the edge of the drawn blank.

To sum up, compared with the prior art, the utility model discloses a compound die of two-way irregular U-shaped spare processes the work piece through blanking structure, deep-drawing structure and the bending structure in this mould, makes the work piece of multichannel process can accomplish processing in one set of mould, has improved the machining efficiency of this kind of work piece, this simple structure, and the practicality is strong, is worth promoting.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims (3)

1. The compound die for the bidirectional irregular U-shaped part comprises an upper die plate (5), a male die fixing plate (3), a base plate (4), a pressure plate (1), a female die fixing plate, a lower die plate, a guide device and a push rod (19), and is characterized in that a blanking structure for cutting a workpiece and a drawing structure for drawing the blanked workpiece are arranged between the male die fixing plate (3) and the female die fixing plate from outside to inside, and the drawing structure is provided with a bending structure for bending the drawn workpiece;

the deep drawing structure comprises a vertically arranged punch-die (13) and a correspondingly arranged drawing die on a die fixing plate, which are fixed at the bottom of an upper template (5), wherein the drawing die comprises two vertically and parallelly arranged die plates I (18), a push plate (20) is arranged between the two die plates I (18), and the push plate (20) is positioned under the punch-die (13);

the blanking structure comprises two blanking male dies (14) symmetrically arranged on two sides of a male die and a female die matched with the blanking male dies (14), the upper ends of the blanking male dies (14) are fixed with the bottom of a male die fixing plate (3), the blanking female die comprises two female die plates II (15) fixed on the female die fixing plate, a gap is reserved between the female die plates II (15) and a female die plate I (18), the blanking male dies (14) are positioned right above the gap, and one sides of the blanking male dies (14) facing the female die plate I (18) are inclined planes;

the bending structure comprises a bending male die (17) arranged on two concave die plates I (18) and a bending female die arranged at the lower end of the male die (13) in the circumferential direction, the bending male die (17) penetrates through a guide groove formed in the concave die plates I (18), a pulley (16) is arranged at one end, away from the bending female die, of the bending male die (17), a groove I is formed in one surface of the bending male die (17) along the moving direction, a limiting pin II (21) is arranged in the groove I, and one end, away from the groove I, of the limiting pin II (21) is fixed with the inner wall of the guide groove; the side face of one end, provided with the pulley (16), of the bending male die (17) is provided with a baffle I parallel to the end part of the bending male die (17), a baffle II parallel to the baffle I is fixed in the guide groove, and a return spring (22) is connected between the baffle I and the baffle II.

2. The compound die for the two-way irregular U-shaped part according to claim 1, wherein a vertical ejector rod (19) penetrates through the die fixing plate, the top of the ejector rod (19) is connected with the bottom of the push plate (20), and the push plate (20) can slide up and down through the ejector rod (19).

3. The compound die for the two-way irregular U-shaped part according to claim 1, wherein a spring (12) is connected between the pressure plate (1) and the punch holder (3), the pressure plate (1) is connected to the lower end of the vertically arranged pull rod (2), the upper end of the pull rod (2) passes through a through groove formed in the punch holder (3) and the backing plate (4) to be in sliding connection, a limiting groove is formed in the bottom of the pressure plate (1), a limiting pin I (23) is arranged below the limiting groove, and the limiting pin I (23) is fixed on the blanking female die.

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