CN112935098A - Stamping side flanging die - Google Patents

Abstract

The invention belongs to the technical field of dies, and particularly relates to a stamping side flanging die which comprises an upper die mechanism and a lower die mechanism, wherein the upper die mechanism comprises an upper die fixing plate, a pressing plate and a flanging male die which are arranged from top to bottom; the structure of the invention can enable the material at the edge turning side of the plate to become smoother, reduce the probability of plate fracture and increase the flatness and quality of the formed part.

Description

Stamping side flanging die

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a stamping side flanging die.

Background

The die is a tool for forming a blank into a product with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or inner cavity shape, and the blank can be separately punched according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The die generally comprises a movable die and a fixed die or a male die and a female die which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

The process flow of the prior stamping part is generally as follows: drawing, punching, trimming, side correction, side punching and the like. The traditional punching side flanging process usually adopts a bending machine, the bending machine is simple in flanging operation and low in cost, but the product quality and quality cannot be guaranteed, the production efficiency is low, and the potential safety hazard is large.

Some technical solutions related to the stamping side flanging die also appear in the prior art, for example, a chinese patent with application number 201811347093 discloses a stamping side flanging die, which includes an upper die and a lower die, and further includes: the material pressing core is arranged on the upper die and protrudes downwards, and a first inclined surface is formed on one side, facing the lower die, of the material pressing core; the upper flanging insert is fixedly arranged on the upper die; the lower flanging insert is arranged on the lower die in a sliding mode, a second inclined surface is formed at the top of the lower flanging insert, the second inclined surface is matched with the first inclined surface, the lower flanging insert slides to the first direction under the driving of the material pressing core, and the limit position of the first direction sliding is as follows: the lower flanging insert and the upper flanging insert are pressed against each other, so that flanging of the workpiece is realized.

In the prior art, most of the existing plates are formed by directly punching the plates through a male die and a female die, the materials of some plates are not uniform, the quality of a formed workpiece is reduced during flanging, even the plates are broken when the thickness of the flanging part of the plates is too small, and the flanging angle is designed firstly for the female die and the male die and then flanging is carried out when the existing side flanging die carries out flanging operation, so that the flanging side of the plates can rebound after flanging, and the processing precision of the plates is reduced.

Disclosure of Invention

The invention provides a stamping side flanging die, which aims to make up the defects of the prior art and solve the problems that the quality of a formed workpiece is reduced when flanging due to uneven material of a plate, and the plate is broken even when the thickness of the flanging part of the plate is too small.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a stamping side flanging die, which comprises an upper die fixing plate, a pressing plate and a flanging male die which are arranged from top to bottom, wherein the lower die mechanism comprises a lower die fixing plate and a flanging female die which are arranged from bottom to top; because the thickness of a plurality of plate materials is uneven, the quality of a formed workpiece is reduced when the plate materials are turned over, and even when the thickness of the turned-over part of the plate materials is too small, the plate materials are broken; therefore, the upper die mechanism and the lower die mechanism are arranged on the workbench of the press machine, the position of the die is adjusted, then the die is fixed, the plate is placed on the upper end face of the lower die mechanism, the upper die fixing plate is driven to move downwards through the press machine, the flanging male die is pressed downwards through the pressing plate, after the flanging male die is contacted with the plate, the flanging male die and the plate are subjected to relative displacement, the plate is subjected to flanging deformation, the flanging side of the plate is contacted with the rolling cylinder of the flattening die block, the rolling cylinder rolls and is subjected to relative displacement with the plate, the material on the flanging side of the plate is pushed to two sides, the material on the flanging side of the plate is flatter, the probability of plate breakage is reduced, and the flatness and the quality of a formed.

Preferably, a fixing groove is formed in the lower plane of the flanging male die, a pre-fixing module is arranged inside the fixing groove, the pre-fixing module comprises a fixing plate, a sliding block and a spring, one end, close to the middle, of the fixing plate is rotatably connected with the inside of the fixing plate, a sliding groove is formed in the fixing plate, the sliding block is connected with the inside of the sliding groove in a sliding mode, and the two sliding blocks are elastically connected through the spring; when the device works, a plate is placed on the upper end face of the lower die mechanism, the spring is at the initial length, and the fixed plate is not contacted with the plate; the press machine drives the upper die mechanism to move downwards, the pre-fixing modules move downwards simultaneously, so that the fixing plates are in contact with the plates, then the fixing plates are rotatably connected with the inner part of the fixing groove due to one ends of the middle parts, the inclination angles of the fixing plates are gradually increased towards the two sides of the lower die mechanism under the pressure action of the upper die mechanism, meanwhile, the fixing plates are pre-pressed downwards by the plates due to the tension of the springs between the two sliding blocks, when the fixing plates are expanded towards the two sides, the sliding blocks slide upwards the sliding grooves under the tension of the springs, and when the upper die mechanism and the lower die mechanism are completely contacted, the; the fixed plate moves relative to the plate while pressing down, so that the non-flanging side material of the plate is pushed flat towards two sides, the plate becomes smoother, the probability of plate fracture is reduced, and the flatness and quality of the plate are further improved.

Preferably, a female die rotating block is arranged at a position, corresponding to the rolling cylinder, of the flanging female die, the upper end of the female die rotating block is rotatably connected with the flanging female die, a hollow area is arranged between the female die rotating block and the flanging female die, a first air cylinder is arranged on the left side of the female die rotating block, the first air cylinder is fixedly connected with the inside of the flanging female die, and a piston rod of the first air cylinder is hinged with the female die rotating block; a male die rotating block is arranged at the position, corresponding to the female die rotating block, of the flanging male die, the upper end of the male die rotating block is rotatably connected with the flanging male die, a hollow area is arranged between the male die rotating block and the flanging male die, a second air cylinder is arranged on the right side of the male die rotating block and fixedly connected with the inside of the flanging male die, and a piston rod of the second air cylinder is hinged with the male die rotating block; when the existing side flanging die is used for flanging, flanging angles are designed firstly for the flanging female die and the flanging male die, and then flanging is carried out, so that the flanging sides of plates can rebound after flanging, the processing precision of the plates is reduced, the working faces of the flanging female die and the flanging male die can be designed into a mode capable of rotating angles, so that the same die can be used for flanging the plates with different angles, multiple purposes of one die are realized, and meanwhile, a rebound compensation angle can be added to the plates during vertical flanging; when the flanging device works, the press machine drives the upper die mechanism to move downwards, the flanging male die moves downwards simultaneously, when the flanging male die contacts a plate, the plate starts to be flanged, after the flanging of the plate is completed, the piston rod of the second air cylinder can push the male die rotating block, and the piston rod of the first air cylinder can recover the piston rod, so that the flanging angle of the flanging side of the plate is continuously increased, a springback compensation angle is increased when the plate is flanged, the springback quantity of the plate after being flanged is reduced, the plate processing precision is increased, and multiple purposes can be realized by one die.

Preferably, the flanging male die is provided with a hollow area above the fixing groove, an air bag is embedded in the hollow area, the lower part of the air bag is fixedly connected with the upper end face of the fixing plate, and the upper part of the air bag is communicated with the second cylinder through a vent pipe; and a control valve is arranged in the vent pipe; during operation, the press drives the upper die mechanism and descends, simultaneously, the fixed plate increases the inclination angle to both sides after contacting the lower die mechanism, the fixed plate pushes up the gasbag fixedly connected with the fixed plate, the gasbag is pressurized and bloated, the control valve switches on, the gasbag communicates with No. two cylinders, make the air that the gasbag bloated extrude to No. two cylinders through the breather pipe, the piston that the air promoted No. two cylinders promotes the piston rod simultaneously, promote the terrace die turning block and rotate, make increase a resilience compensation angle during sheet material turn-ups, the resilience volume after the sheet material turn-ups has been reduced, further increase sheet material machining precision.

Preferably, the vent pipe is additionally communicated with an external vent pipe, and the external vent pipe is communicated with an external air source; when the die is not in operation, the control valve is in a stop state, an external air source is introduced into the second cylinder to pre-press the second cylinder, the press machine drives the upper die mechanism to move downwards when in operation, the control valve is switched on after the flanging male die is contacted with a plate material, air pressed out through the air bag enters the second cylinder through the vent pipe to perform the function of pressurizing the second cylinder, and a piston rod of the second cylinder pushes the male die rotating block to rotate; the stroke of the piston rod is controlled by controlling the amount of the external air source, so that the rotation angle of the male die rotating block is controlled, the flanging angle is controlled, the flanging compensation angle of the plate can be controlled more accurately, the resilience after flanging of the plate is reduced, and the plate machining precision is further improved.

Preferably, when the springs are in the initial length, the included angle formed by the upper ends of the two fixing plates is not less than the degree, and the lower end parts of the fixing plates are provided with rollers which are in rolling connection with the fixing plates; when the die does not work, the fixed plates do not contact the lower die mechanism, the springs are in the initial length, the two fixed plates are small enough at the moment, the fixed plates can continue to expand towards the two sides of the lower die mechanism, meanwhile, the rollers are arranged at the lower end parts of the fixed plates, when the lower die mechanism contacts the fixed plates, the fixed plates firstly contact the rollers, the rollers roll to further reduce the friction between the fixed plates and the lower die mechanism, the upper end surfaces of the fixed plates and the lower die mechanism are prevented from being abraded, meanwhile, the fixed plates can smoothly expand towards the lower die mechanism, the material on the non-flanging side of the plate is enabled to be smoother, the probability of plate breakage is reduced, and the.

The invention has the following beneficial effects:

1. according to the stamping side flanging die, the extruding module is arranged, so that the flanging side of the plate material is in contact with the rolling cylinder of the extruding module, the rolling cylinder rolls and generates relative displacement with the plate material, the material at the flanging side of the plate material is pushed to two sides, the material at the flanging side of the plate material becomes smoother, the probability of plate material fracture is reduced, and the flatness and the quality of a formed part are improved.

2. According to the stamping side flanging die, the pre-fixing module is arranged, so that the fixed plate is pressed downwards to compress the plate, and the fixed plate is displaced relative to the plate while being pressed downwards, so that the non-flanging side material of the plate is pushed to two sides, the plate is flatter, the probability of plate fracture is reduced, and the flatness and quality of the plate are further improved.

3. According to the stamping side flanging die, the working surfaces of the flanging female die and the flanging male die are set to be in a rotatable angle form, and a springback compensation angle is added to a plate by rotating the working surfaces of the flanging female die and the flanging male die; the resilience amount of the plate after flanging is reduced, and the plate processing precision is increased.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention at the beginning of the turn-up;

FIG. 3 is a schematic view of the structure of the present invention at the completion of flanging;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a partial enlarged view at B in FIG. 3;

in the figure: the device comprises a guide post 1, a lower die mechanism 2, a lower die fixing plate 21, a flanging female die 22, an upper die mechanism 3, an upper die fixing plate 31, a pressing plate 32, a flanging male die 33, a guide sleeve 4, a leveling module 5, a rolling cylinder 51, a rotating roller 52, a fixing groove 6, a pre-fixing module 7, a fixing plate 71, a sliding block 72, a spring 73, a sliding groove 74, a female die rotating block 8, a first air cylinder 9, a male die rotating block 10, an air bag 11, an air pipe 111, a control valve 112, an external air pipe 113, an external air source 114, a roller 12 and a second air cylinder 13.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a stamping side flanging die comprises an upper die mechanism 3 and a lower die mechanism 2, wherein the upper die mechanism 3 comprises an upper die fixing plate 31, a pressing plate 32 and a flanging male die 33 which are arranged from top to bottom, the lower die mechanism 2 comprises a lower die fixing plate 21 and a flanging female die 22 which are arranged from bottom to top, a guide pillar 1 and a guide sleeve 4 are arranged between the upper die mechanism 3 and the lower die mechanism 2, a groove is arranged on the side surface of the flanging male die 33, an extruding module 5 is arranged in the groove, the extruding module 5 comprises a rolling cylinder 51 and a rotating roller 52, the rolling cylinder 51 is fixedly connected with the rotating roller 52, the rotating roller 52 is rotatably connected with the inner wall of the groove, and the top of the rolling cylinder 51 protrudes out of the.

Because the thickness of a plurality of plate materials is uneven, the quality of a formed workpiece is reduced when the plate materials are turned over, and even when the thickness of the turned-over part of the plate materials is too small, the plate materials are broken;

therefore, the upper die mechanism 3 and the lower die mechanism 2 are arranged on a workbench of a press machine, the position of the die is adjusted, then the die is fixed, a plate is placed on the upper end face of the lower die mechanism 2, the upper die fixing plate 31 is driven to move downwards through the press machine, the flanging male die 33 is pressed downwards through the pressing plate 32, when the flanging male die 33 contacts the plate, the flanging male die 33 and the plate are displaced relatively, the plate is subjected to flanging deformation, the flanging side of the plate is contacted with the rolling barrel 51 of the flattening die block 5, the rolling barrel 51 rolls and is displaced relatively to the plate, the material on the flanging side of the plate is pushed to two sides, the material on the flanging side of the plate is flatter, the probability of plate fracture is reduced, and the flatness and the quality of a formed part are improved.

As an embodiment of the present invention, a fixing groove 6 is arranged at a lower plane of the flanging male die 33, a pre-fixing module 7 is arranged inside the fixing groove 6, the pre-fixing module 7 includes a fixing plate 71, a sliding block 72 and a spring 73, one end of the fixing plate 71 near the middle is rotatably connected with the inside of the fixing plate, a sliding groove 74 is arranged inside the fixing plate 71, the sliding block 72 is slidably connected with the inside of the sliding groove 74, and the two sliding blocks 72 are elastically connected through the spring 73; when the device works, a plate is placed on the upper end face of the lower die mechanism 2, the spring 73 is at the initial length, and the fixed plate 71 is not contacted with the plate; the press machine drives the upper die mechanism 3 to move downwards, meanwhile, the pre-fixing module 7 moves downwards, so that the fixing plates 71 are in contact with the plate materials, then one ends of the fixing plates 71 are rotatably connected with the inside of the fixing grooves 6, the fixing plates 71 gradually increase the inclination angles towards two sides of the lower die mechanism 2 under the pressure action of the upper die mechanism 3, meanwhile, the middle of the two fixing plates 71 is pulled by the springs 73, so that the fixing plates 71 downwards compress the plate materials in advance, the springs 73 are connected between the two sliding blocks 72, when the fixing plates 71 expand towards two sides, the sliding blocks 72 slide towards the upper side of the sliding grooves 74 under the pulling force of the springs 73, and when the upper die mechanism 3 is completely contacted with; the fixed plate 71 is pressed downwards and simultaneously moves relative to the plate, so that the non-flanging side material of the plate is pushed to two sides to be flat, the plate is more flat, the probability of plate fracture is reduced, and the flatness and quality of the plate are further improved.

As an embodiment of the invention, a female die rotating block 8 is arranged at a position of the flanging female die 22 corresponding to the rolling cylinder 51, the upper end of the female die rotating block 8 is rotatably connected with the flanging female die 22, a hollow area is arranged between the female die rotating block 8 and the flanging female die 22, a first air cylinder 9 is arranged on the left side of the female die rotating block 8, the first air cylinder 9 is fixedly connected with the inside of the flanging female die 22, and a piston rod of the first air cylinder 9 is hinged with the female die rotating block 8; a male die rotating block 10 is arranged at a position, corresponding to the female die rotating block 8, of the flanging male die 33, the upper end of the male die rotating block 10 is rotatably connected with the flanging male die 33, a hollow area is arranged between the male die rotating block 10 and the flanging male die 33, a second air cylinder 13 is arranged on the right side of the male die rotating block 10, the second air cylinder 13 is fixedly connected with the inside of the flanging male die 33, and a piston rod of the second air cylinder 13 is hinged with the male die rotating block 10; when the existing side flanging die is used for flanging, the flanging angle is designed firstly for the flanging female die 22 and the flanging male die 33, and then flanging is carried out, so that the flanging side of a plate can rebound after the plate is flanged, the plate processing precision is reduced, the working faces of the flanging female die 22 and the flanging male die 33 can be designed into a form capable of rotating the angle, so that the plate with different angles can be flanged by the same die, one die is multipurpose, and meanwhile, a rebound compensation angle can be added to the plate when the plate is vertically flanged; when the flanging device works, the press machine drives the upper die mechanism 3 to move downwards, meanwhile, the flanging male die 33 moves downwards, when the flanging male die 33 contacts a plate, the plate starts to be flanged, after the flanging of the plate is completed, the piston rod of the second air cylinder 13 can push the male die rotating block 10, and meanwhile, the piston rod of the first air cylinder 9 is recovered, so that the flanging angle of the flanging side of the plate is continuously increased, a springback compensation angle is increased when the plate is flanged, the springback amount of the plate after being flanged is reduced, the plate processing precision is increased, and meanwhile, one die is multipurpose.

As an embodiment of the invention, the flanging male die 33 is provided with a hollow area above the fixing groove 6, an air bag 11 is embedded in the hollow area, the lower part of the air bag 11 is fixedly connected with the upper end face of the fixing plate 71, and the upper part of the air bag 11 is communicated with the second cylinder 13 through a vent pipe 111; a control valve 112 is arranged in the vent pipe 111; during operation, the press machine drives the upper die mechanism 3 to move downwards, meanwhile, the fixing plate 71 is contacted with the lower die mechanism 2, the inclination angles are increased towards two sides, the fixing plate 71 presses the air bag 11 fixedly connected with the fixing plate 71 upwards, the air bag 11 is pressurized to blow air, the control valve 112 is conducted, the air bag 11 is communicated with the second air cylinder 13, air blown out by the air bag 11 is extruded into the second air cylinder 13 through the air pipe 111, the piston of the second air cylinder 13 is pushed by air to push the piston rod simultaneously, the male die rotating block 10 is pushed to rotate, a rebound compensation angle is increased during plate flanging, the rebound quantity after plate flanging is reduced, and the plate processing precision is further increased.

As an embodiment of the present invention, the vent pipe 111 is further communicated with an external vent pipe 113, and the external vent pipe 113 is communicated 114 with an external air source; when the die is not in operation, the control valve 112 is in a cut-off state, an external air source is introduced into the second cylinder 13 to pre-press the second cylinder 13, when the die is in operation, the press machine drives the upper die mechanism 3 to move downwards, after the flanging male die 33 contacts the plate material, the control valve 112 is switched on, air pressed out through the air bag 11 enters the second cylinder 13 through the vent pipe 111 to play a role of pressurizing the second cylinder 13, and a piston rod of the second cylinder 13 pushes the male die rotating block 10 to rotate; the piston rod stroke is controlled by controlling the amount of the external air source 114, so that the rotation angle of the male die rotating block 10 is controlled, the flanging angle is controlled, the flanging compensation angle of the plate can be controlled more accurately, the resilience after flanging of the plate is reduced, and the plate machining precision is further improved.

As an embodiment of the present invention, when the spring 73 is at the initial length, an included angle formed by the upper ends of the two fixing plates 71 is not less than 60 degrees, and a roller 12 is disposed at the lower end of the fixing plate 71, and the roller 12 is in rolling connection with the fixing plate 71; when the die does not work, the fixing plates 71 do not contact the lower die mechanism 2, the springs 73 are in the initial length, the two fixing plates are small enough at the moment, the fixing plates 71 can continue to expand towards two sides of the lower die mechanism 2, meanwhile, the rollers 12 are arranged at the lower end parts of the fixing plates 71, when the lower die mechanism 2 contacts the fixing plates 71, the fixing plates firstly contact the rollers 12, the rollers 12 roll to further reduce friction between the fixing plates 71 and the lower die mechanism 2, the upper end surfaces of the fixing plates 71 and the lower die mechanism 2 are prevented from being worn, meanwhile, the fixing plates 71 can smoothly expand towards the lower die mechanism 2, materials on the non-flanging side of the plate become smoother, the probability of plate breakage is reduced, and the flatness and the quality of the.

When the device works, the upper die mechanism 3 and the lower die mechanism 2 are arranged on a workbench of a press machine, the position of the die is adjusted, then the die is fixed, a plate is placed on the upper end surface of the lower die mechanism 2, an upper die fixing plate 31 is driven to move downwards through the press machine, a flanging male die 33 is pressed downwards through a pressing plate 32, after the flanging male die 33 contacts the plate, the flanging male die 33 and the plate are relatively displaced, the plate is subjected to flanging deformation, the flanging side of the plate is contacted with a rolling cylinder 51 of the flattening module 5, the rolling cylinder 51 rolls and is relatively displaced with the plate, the material on the flanging side of the plate is pushed to two sides, the material on the flanging side of the plate is flatter, the probability of plate fracture is reduced, and the flatness and the quality of a formed part are; when the device works, a plate is placed on the upper end face of the lower die mechanism 2, the spring 73 is at the initial length, and the fixed plate 71 is not contacted with the plate; the press machine drives the upper die mechanism 3 to move downwards, meanwhile, the pre-fixing module 7 moves downwards, so that the fixing plates 71 are in contact with the plate materials, then one ends of the fixing plates 71 are rotatably connected with the inside of the fixing grooves 6, the fixing plates 71 gradually increase the inclination angles towards two sides of the lower die mechanism 2 under the pressure action of the upper die mechanism 3, meanwhile, the middle of the two fixing plates 71 is pulled by the springs 73, so that the fixing plates 71 downwards compress the plate materials in advance, the springs 73 are connected between the two sliding blocks 72, when the fixing plates 71 expand towards two sides, the sliding blocks 72 slide towards the upper side of the sliding grooves 74 under the pulling force of the springs 73, and when the upper die mechanism 3 is completely contacted with; the fixed plate 71 is pressed downwards and simultaneously moves relative to the plate, so that the non-flanging side material of the plate is pushed to two sides to be flat, the plate is more flat, the probability of plate fracture is reduced, and the flatness and quality of the plate are further improved; when the flanging device works, the press machine drives the upper die mechanism 3 to move downwards, the flanging male die 33 moves downwards simultaneously, when the flanging male die 33 contacts a plate, the plate starts to be flanged, after the flanging of the plate is finished, a piston rod of the second air cylinder 13 can push the male die rotating block 10, and a piston rod of the first air cylinder 9 recovers the piston rod, so that the flanging angle of the flanging side of the plate is continuously increased, a springback compensation angle is increased when the plate is flanged, the springback amount of the plate after the flanging is reduced, the plate processing precision is increased, and meanwhile, one die can be used for multiple purposes; when the device works, the press machine drives the upper die mechanism 3 to move downwards, meanwhile, the fixing plate 71 is contacted with the lower die mechanism 2, then inclination angles are increased to two sides, the fixing plate 71 presses the air bag 11 fixedly connected with the fixing plate 71 upwards, the air bag 11 is pressurized to blow air, the control valve 112 is conducted, the air bag 11 is communicated with the second cylinder 13, so that air blown out of the air bag 11 is extruded into the second cylinder 13 through the air pipe 111, the air pushes the piston of the second cylinder 13 to push the piston rod simultaneously, the male die rotating block 10 is pushed to rotate, a rebound compensation angle is increased when a plate is flanged, the rebound quantity after the plate is flanged is reduced, and the plate machining precision is further; when the device works, the press machine drives the upper die mechanism 3 to move downwards, when the flanging male die 33 contacts the plate material, the control valve 112 is conducted, air pressed out through the air bag 11 enters the second cylinder 13 through the vent pipe 111 to play a role of pressurizing the second cylinder 13, and a piston rod of the second cylinder 13 pushes the male die rotating block 10 to rotate; the stroke of the piston rod is controlled by controlling the amount of the external air source, so that the rotation angle of the male die rotating block is controlled, the flanging angle is controlled, the flanging compensation angle of the plate can be more accurately controlled, the resilience after flanging of the plate is reduced, and the plate machining precision is further increased; when the die does not work, the fixing plates 71 do not contact the lower die mechanism 2, the springs 73 are in the initial length, the two fixing plates are small enough at the moment, the fixing plates 71 can continue to expand towards two sides of the lower die mechanism 2, meanwhile, the rollers 12 are arranged at the lower end parts of the fixing plates 71, when the lower die mechanism 2 contacts the fixing plates 71, the fixing plates firstly contact the rollers 12, the rollers 12 roll to further reduce friction between the fixing plates 71 and the lower die mechanism 2, the upper end surfaces of the fixing plates 71 and the lower die mechanism 2 are prevented from being worn, meanwhile, the fixing plates 71 can smoothly expand towards the lower die mechanism 2, materials on the non-flanging side of the plate become smoother, the probability of plate breakage is reduced, and the flatness and the quality of the.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a punching press side turn-ups mould which characterized in that: the die comprises an upper die mechanism (3) and a lower die mechanism (2), wherein the upper die mechanism (3) comprises an upper die fixing plate (31), a pressing plate (32) and a flanging male die (33), which are arranged from top to bottom, the lower die mechanism (2) comprises a lower die fixing plate (21) and a flanging female die (22), which are arranged from bottom to top, a guide pillar (1) and a guide sleeve (4) are arranged between the upper die mechanism (3) and the lower die mechanism (2), a groove is formed in the side surface of the flanging male die (33), an extruding module (5) is arranged in the groove, the extruding module (5) comprises a rolling cylinder (51) and a rotating roller (52), the rolling cylinder (51) is fixedly connected with the rotating roller (52), the rotating roller (52) is rotatably connected with the inner wall of the groove, and the top of the rolling cylinder (51) protrudes out.

2. The stamping side flanging die of claim 1, characterized in that: the lower plane department of turn-ups terrace die (22) is equipped with fixed slot (6), fixed slot (6) inside is equipped with in advance fixed module (7), in advance fixed module (7) including fixed plate (71), slider (72) and spring (73), fixed plate (71) are close to middle one end and are connected with fixed inside rotation, fixed plate (71) inside is provided with spout (74), slider (72) with spout (74) inside sliding connection, two sliders (72) pass through spring (73) elastic connection.

3. The stamping side flanging die of claim 2, characterized in that: a female die rotating block (8) is arranged at a position, corresponding to the rolling barrel (51), of the flanging female die (22), the upper end of the female die rotating block (8) is rotatably connected with the flanging female die (22), a hollow area is arranged between the female die rotating block (8) and the flanging female die (22), a first air cylinder (9) is arranged on the left side of the female die rotating block (8), the first air cylinder (9) is fixedly connected with the inside of the flanging female die (22), and a piston rod of the first air cylinder (9) is hinged to the female die rotating block (8); the flanging male die (33) and the female die rotating block (8) are provided with a male die rotating block (10) at the corresponding position, the upper end of the male die rotating block (10) is rotatably connected with the flanging male die (33), a hollow area is arranged between the male die rotating block (10) and the flanging male die (33), a second air cylinder (13) is arranged on the right side of the male die rotating block (10), the second air cylinder (13) is fixedly connected with the inside of the flanging male die (33), and a piston rod of the second air cylinder (13) is hinged to the male die rotating block (10).

4. The stamping side flanging die of claim 3, characterized in that: the flanging male die (33) is provided with a hollow area above the fixing groove (6), an air bag (11) is embedded in the hollow area, the lower part of the air bag (11) is fixedly connected with the upper end face of the fixing plate (71), and the upper part of the air bag (11) is communicated with the second cylinder (13) through a vent pipe (111); and a control valve (112) is arranged in the vent pipe (111).

5. The stamping side flanging die of claim 4, characterized in that: the ventilation pipe (111) is additionally communicated with an external ventilation pipe (113), and the external ventilation pipe (113) is communicated with an external air source (114).

6. The stamping side flanging die of claim 5, characterized in that: when the springs (73) are in the initial length, the included angle formed by the upper ends of the two fixing plates (71) is not less than 60 degrees, the lower end parts of the fixing plates (71) are provided with rollers (12), and the rollers (12) are in rolling connection with the fixing plates (71).

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