CN112719079B

CN112719079B - Die structure for correcting height and flatness and correcting process thereof

Info

Publication number: CN112719079B
Application number: CN202011491517.7A
Authority: CN
Inventors: 黄旺洲; 张泽鹏; 杨佳仁
Original assignee: Zhangzhou Ruiteng Electric Appliance Co ltd
Current assignee: Zhangzhou Ruiteng Electric Appliance Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2023-04-25
Anticipated expiration: 2040-12-17
Also published as: CN112719079A

Abstract

The invention discloses a die structure for correcting height and flatness, which comprises a shape correcting structure component, wherein the shape correcting structure component comprises a leveling male die, a leveling female die and a leveling floating block, a groove for accommodating the leveling floating block is formed in the leveling female die, the leveling male die is arranged above the leveling floating block, and a first annular concave groove for correcting the height of a part is formed between the top surface edge of one end, opposite to the leveling male die, of the leveling floating block and the leveling female die. The beneficial effects of the invention are as follows: the leveling male die, the leveling female die and the leveling floating block are matched with each other to realize correction of height and flatness, wherein the leveling floating block is provided with the first annular concave groove, so that the part of the leveling floating block in the prior art, which is weak in material strength and easy to collapse, is replaced, the whole material strength is sufficient, the part is not easy to collapse any more, the service life of the die is greatly prolonged, and the cost expenditure is reduced.

Description

Die structure for correcting height and flatness and correcting process thereof

Technical Field

The invention relates to the field of shaping dies, in particular to a die structure for correcting height and flatness and a correction process thereof.

Background

Parts often require calibration during the manufacturing process because they are greatly affected by the tensile strength of different batches of materials.

As shown in fig. 1 to 2, the strength of the correcting floating block of the correcting die used for correcting the height in the old correcting structure is poor, and the part actually used for correcting the height has only one material thickness, so that the die is often broken in mass production, and if the die is abnormal due to dislocation and the like, the die is also damaged; in addition, the precision requirement of the insert is very high, the processing technology is complex and the manufacturing cost is high, and the effect of the mould used in the traditional technology for correcting the height and the flatness is not very ideal, and the correction quality is not high. In view of the above, the present inventors have studied to solve the above-mentioned drawbacks of the prior art and have made the present invention.

Disclosure of Invention

Aiming at the problems that part of materials used for correcting height and flatness are weaker, collapse damage is easy to occur, the use cost of the die is high, and the correction quality of products is low in the prior art, the invention provides a die structure used for correcting the height and flatness, which comprises a shape correcting structure component, wherein the shape correcting structure component comprises a leveling male die, a leveling female die and a leveling floating block, a groove used for accommodating the leveling floating block is formed in the leveling female die, the leveling male die is arranged above the leveling floating block, and a first annular concave groove used for correcting the height of a part is formed between the top surface edge of one end of the leveling floating block opposite to the leveling male die and the leveling female die.

The part is placed between the leveling male die, the leveling female die and the leveling floating block, the height and flatness of the part are corrected through clamping and extrusion, a first annular concave groove is formed between the top surface edge of one end of the leveling floating block opposite to the leveling male die and the leveling female die, compared with the leveling floating block in the prior art, the first annular concave groove replaces the part, which is weak in material strength and easy to collapse, of the leveling floating block in the prior art, the strength of the whole material is enough, the part is not easy to collapse when the part is leveled and the flatness is corrected, and the service life of the die is greatly prolonged.

Preferably, the first annular recess groove width is greater than the part thickness, and the difference between the first annular recess groove and the part thickness is less than 0.05mm.

Preferably, the difference between the thickness of the first annular recess and the thickness of the part is less than or equal to 0.03mm.

The gap is arranged between the first annular concave groove and the part, and is not more than 0.05mm, so that the part can be conveniently and smoothly sleeved in the first annular concave groove, the follow-up stripping is easier, and the part cannot be locked on the correction die; according to practical use, the clearance between the first annular concave groove and the part is set to be 0.03mm most conveniently.

Preferably, the side surface of the first annular concave groove far away from the adjacent leveling surface concave die and the top surface of the leveling floating block adopt arc transition with the radius not less than 0.5 mm. The arc transition can prevent the height correcting floating block from scratching the surface of the part in the operation process.

Preferably, a second annular concave groove is formed in the edge of the bottom surface of one end, opposite to the end, of the leveling male die, of the leveling female die, the second annular concave groove is in transition with the main body portion of the leveling male die through an arc R2, the leveling female die is in transition with the top surface of the leveling female die through an arc R1, and the radius of a circle where the arc R1 is located is smaller than the difference between the radius of the circle where the arc R2 is located and the thickness of a material.

Compared with the prior art, the radius of the circle where the circular arc R1 is smaller than the difference between the radius of the circle where the circular arc R2 is located and the thickness of a material, namely, the leveling female die and the leveling male die generate an overpressure effect on the clamped part during operation, so that the R angle of the part is plastically deformed to improve the flatness, the flatness improvement effect is good, meanwhile, the overpressure effect can better support the R angle, and the leveling female die is helpful for leveling the height of the part, which can be more effectively calibrated.

Preferably, wherein R2 has a radius of 0.9mm and R1 has a radius of 0.4mm.

Preferably, the sum of the distance from the lowest point of the first annular concave groove to the top surface of the leveling floating block and the distance from the highest point of the second annular concave groove to the bottom surface of the leveling male die is equal to the preset height of the part.

Preferably, the shape correcting structure assembly further comprises a leveling block, and the leveling block is arranged at a position right above the outer edge of the leveling surface female die groove.

Preferably, the shape correcting structure assembly further comprises a shape correcting structure force transmitting assembly for applying upward resilience force to the leveling punch.

Preferably, the die structure further comprises an upper die base, an upper base plate, a stop plate, an upper stripper plate, a lower die plate, a lower base plate and a lower die base which are sequentially overlapped from top to bottom, the height-correcting floating block and the leveling surface degree female die are mounted on the lower die plate, and the leveling block is fixedly mounted on the upper stripper plate.

Preferably, the shape correcting structure force transmission assembly comprises a first force transmission elastic piece, a first force transmission column and a first force transmission gasket, wherein the first force transmission elastic piece is arranged on the lower die holder, the first force transmission gasket is fixed at one end of the first force transmission elastic piece, the other end of the first force transmission gasket is fixed at one end of the first force transmission column, and the other end of the first force transmission column penetrates through the lower base plate to be fixed at one end, far away from the leveling surface male die, of the leveling floating block.

Preferably, the leveling male die is fixedly mounted between the upper backing plate and the upper stripper plate by a first fixing member.

Preferably, the die structure further comprises an bulging structure assembly, the bulging structure assembly comprises a bulging leveling block, a stripping floating block and a bulging male die, a groove for accommodating the bulging male die is formed in the stripping floating block, and the bulging leveling block is correspondingly arranged at a position right above the outer edge of the stripping floating block groove.

The parts are deviated in the production and manufacturing process, the problems of product necking and the like can be generated, the product necking can influence the effects of product correcting and leveling, after the product necking, the product is not easy to be sleeved in the first annular concave groove, and after correction, the stripping effect is influenced; the bulging structure assembly is adopted, and the bulging male die is utilized to prop open the product shrinkage edge, so that the subsequent correction of the product height and flatness is more convenient, the product quality is better, and the product meets the requirements of customers.

Preferably, a conical structure of the bulging male die for correcting the shrinkage of the part is arranged on one end, close to the bulging leveling block, of the bulging male die.

Preferably, the expansion male die conical structure is a round table with the radius length gradually decreasing from top to bottom.

Preferably, the top surface of the bulging male die conical structure and the side surface of the bulging male die conical structure are provided with arc transition. The surface of the processed part is not easy to scratch by adopting arc transition.

Preferably, the stripping floating block is provided with a shrinkage correction groove which is formed by matching with the bulging male die and used for correcting shrinkage of the part.

Preferably, the bulging structure assembly further comprises a bulging structure force transfer assembly.

Preferably, the bulging leveling block is fixedly arranged on the upper stripper plate, the bulging male die is fixedly arranged on the lower die plate, and the stripper floating block is arranged on the lower die plate in a vertically sliding manner.

Preferably, the force transmission assembly of the bulging structure comprises a second force transmission elastic piece, a second force transmission column and a second force transmission gasket, wherein the second force transmission elastic piece is fixed on the lower die holder, the second force transmission gasket is fixed at one end of the second force transmission elastic piece, the other end of the second force transmission gasket is fixed at one end of the second force transmission column, and the other end of the second force transmission column penetrates through the lower base plate to be fixed at one end, far away from the bulging leveling block, of the stripping floating block.

The invention also relates to a correcting process of the die structure for correcting the height and the flatness, which comprises the following steps:

a groove for accommodating an bulging male die is formed in the stripping floating block, the bulging male die is positioned in the groove, the bulging leveling block is positioned at a position right above the outer edge of the stripping floating block groove, the lower end of the stripping floating block is provided with a bulging structure force transmission component for applying upward resilience force to the stripping floating block, a part is placed on the upper surface of the stripping floating block in the bulging structure component, and the upper die holder moves downwards to drive the bulging leveling block to press the edge of the part on the stripping floating block downwards;

step two, the upper die holder continuously drives the part downwards to be sleeved on the bulging male die, the force transmission component of the bulging structure is compressed until the shrinkage correction of the part is completed, and the upper die holder moves upwards to enable the part port to be separated from the bulging male die and the stripping floating block in sequence;

step three, a groove for accommodating a leveling floating block is formed in the leveling female die, the leveling floating block is positioned in the groove, a leveling male die is arranged above the leveling floating block, and a first annular concave groove for correcting the height of a part is formed between the top surface edge of one end, opposite to the leveling male die, of the leveling floating block and the leveling female die; a leveling block is arranged at a position right above the outer edge of the leveling female die groove; the lower end of the leveling male die is provided with a shape correcting structure force transmission assembly which applies upward resilience force to the leveling male die; sleeving the adjusted part opening part on the outer edge of the leveling floating block, and enabling the upper die holder to move downwards to drive the leveling block and the leveling male die to be tightly attached to the upper surface of the part;

step four, the upper die holder continues to move downwards, the force transmission component of the shape correcting structure is compressed, the edge of the part is pressed on the upper surface of the leveling female die, and the shape correction of the part is completed;

and fifthly, the upper die holder moves upwards, the leveling male die moves upwards under the elastic action of the force transmission component of the shape correcting structure to be separated from the leveling female die, and then the part is taken down from the leveling male die.

Compared with the prior art, the novel shape correcting process is more controllable and can meet the requirements of customers more easily. The process is suitable for flanging products of high-speed stamping dies, has wide application range, higher product qualification rate and better processing quality, and generates good economic benefit.

The beneficial effects are that:

the technical scheme of the invention has the following beneficial effects:

(1) The part is placed between the leveling male die, the leveling female die and the leveling floating block, the height and flatness of the part are corrected through clamping and extrusion, a first annular concave groove is formed between the top surface edge of one end of the leveling floating block opposite to the leveling male die and the leveling female die, compared with the leveling floating block in the prior art, the first annular concave groove replaces the part of the leveling floating block, which is weak in material strength and easy to collapse, in the prior art, the whole material strength is sufficient, no weak part exists, the part is not easy to collapse when the part is leveled and the flatness is corrected, the service life of the die is greatly prolonged, and the processing production cost is reduced.

(2) The gap is arranged between the first annular concave groove and the part, and is not more than 0.05mm, so that the part can be conveniently and smoothly sleeved in the first annular concave groove, the follow-up stripping is easier, and the part cannot be locked on the correction die; according to practical use, the clearance between the first annular concave groove and the part is set to be 0.03mm most conveniently.

(3) The side surface of the first annular concave groove far away from the adjacent leveling female die is provided with an arc for transition with the top surface of the leveling floating block, and the top surface of the bulging male die conical structure is provided with an arc for transition with the side surface of the bulging male die conical structure; the arc transition can well prevent the height correcting floating block from scratching the surface of the part in the operation process.

(4) Compared with the prior art, the radius of the circle where the circular arc R1 is smaller than the difference between the radius of the circle where the circular arc R2 is located and the thickness of a material, namely, the leveling female die and the leveling male die generate an overpressure effect on the clamped part during operation, so that the R angle of the part is plastically deformed to improve the flatness, the flatness improvement effect is good, meanwhile, the overpressure effect can better support the R angle, and the leveling female die is helpful for leveling the height of the part, which can be more effectively calibrated.

(5) The parts are deviated in the production and manufacturing process, the problems of product necking and the like can be generated, the product necking can influence the effects of product height correction and flatness correction, after the product necking, the product is not easy to be sleeved in the first annular concave groove, and after correction, the stripping effect is influenced; the bulging structure assembly is adopted, the bulging male die is utilized to prop open the product shrinkage edge, thus being more convenient for correcting the height and flatness of the product, being convenient for stripping, having better quality of processed products and meeting the requirements of customers.

(6) Compared with the prior art, the novel shape correcting process is more controllable and can meet the requirements of customers more easily. The process has wide application range, is particularly suitable for flanging products of high-speed stamping dies, has higher product qualification rate and better processing quality, and generates good economic benefit.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art mold for correcting height and flatness;

FIG. 2 is a schematic view of a portion c of a calibration structure assembly for use in calibration in the prior art;

FIG. 3 is a schematic view of a mold structure for correcting height and flatness in accordance with the present invention;

FIG. 4 is a schematic view of a preferred bulging structural assembly in accordance with the present invention;

FIG. 5 is a schematic view of a preferred shape correcting structure assembly of the present invention;

FIG. 6 is a schematic view of a portion a of a preferred bulging structural assembly in accordance with the present invention;

FIG. 7 is a schematic view of a portion b of a preferred shape correcting structure assembly of the present invention.

In the figure: 1. an upper die holder; 2. an upper backing plate; 3. a stop plate; 4. an upper stripper plate; 5. a lower template; 6. a lower backing plate; 7. a lower die holder; 8. a shape correcting structural component; 9. an bulging structural assembly; 10. a part; 11. correcting the structural component; 12. a first annular recess; 13. a necking correction groove; 81. a first fixing member; 82. leveling the plane male die; 83. leveling blocks; 84. calibrating the floating block; 85. leveling the female die; 86. a shape correcting structure force transmission assembly; 861. a first force transfer column; 862. a first force transfer shim; 863. a first force-transmitting elastic member; 91. bulging leveling blocks; 92. removing the material floating blocks; 93. a second fixing member; 94. bulging male die; 941. a conical structure of the bulging male die; 95. a bulging structure force transfer assembly; 951. a second force transfer column; 952. a second force-transmitting gasket; 953. and a second force-transmitting elastic member.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

As shown in fig. 3 and 5, a mold structure for correcting the height and the flatness comprises a shape correcting structure component 8, wherein the shape correcting structure component 8 comprises a leveling male die 82, a leveling female die 85 and a leveling floating block 84, a groove for accommodating the leveling floating block 84 is formed in the leveling female die 85, the leveling male die 82 is arranged above the leveling floating block 84, and a first annular concave groove 12 for correcting the height of a part 10 is formed between the top edge of the end, opposite to the leveling male die 82, of the leveling floating block 84 and the leveling female die 85.

The part is placed between the leveling male die, the leveling female die and the leveling floating block, the part is subjected to height and flatness correction through clamping and extrusion, a first annular concave groove is formed between the top surface edge of one end of the leveling floating block opposite to the leveling male die and the leveling female die, and compared with the leveling floating block in the prior art, the first annular concave groove replaces the part of the leveling floating block, which is weak in material strength and easy to collapse, in the prior art, the whole material strength is enough, the part is not easy to collapse when the part is leveled and the flatness is corrected, the service life of the die is greatly prolonged, and the processing cost expenditure is reduced.

As shown in FIG. 7, as a preferred embodiment, the first annular recess 12 has a width greater than the thickness of the part 10, and the difference d between the first annular recess 12 and the thickness of the part 10 is less than 0.05mm.

As a preferred embodiment, the difference d between the thickness of the first annular recess 12 and the part 10 is less than or equal to 0.03mm.

The gap is arranged between the first annular concave groove and the part 10, and is not more than 0.05mm, so that the part can be conveniently and smoothly sleeved in the first annular concave groove, the follow-up stripping is easier, and the part cannot be locked on the correction die; according to practical use, the clearance between the first annular concave groove and the part is set to be 0.03mm most conveniently.

As shown in fig. 7, as a preferred embodiment, the side surface of the first annular recess 12, which is far away from the adjacent leveling die 85, and the top surface of the leveling float 84 adopt an arc transition.

As can be seen from the part b of the leveling component, the side surface of the first annular recess, which is far from the adjacent leveling die 85, and the top surface of the leveling float 84 adopt an arc transition. Compared with the correction floating blocks which are not in arc transition and are shown in the correction structure component part c in the correction structure component 11 in the prior art, the arc transition can prevent the correction floating blocks from scratching the surfaces of parts in the operation process.

As shown in fig. 7, as a preferred embodiment, a second annular concave groove (not shown) is formed at the edge of the bottom surface of the end of the leveling male die 82 opposite to the leveling female die 85, the second annular concave groove is in transition with the main body portion of the leveling male die 82 through an arc R2, the side surface of the leveling female die 85, which is close to the leveling float block 84, is in transition with the top surface of the leveling female die 85 through an arc R1, and the radius of the circle where the arc R1 is smaller than the difference between the radius of the circle where the arc R2 is located and the thickness of one material.

Compared with the prior art, the radius of the circle where the circular arc R1 is smaller than the difference between the radius of the circle where the circular arc R2 is located and the thickness of a material, namely, when the leveling female die and the leveling male die operate, an overpressure effect is generated on an R angle of a clamped part, so that the R angle of the part is plastically deformed, the flatness is improved, the flatness improvement effect is good, meanwhile, the overpressure effect can better support the R angle, and the height of the shape correcting part, which can be more effectively, of the leveling floating block is helped.

Because of the cooperation among the leveling male die, the leveling female die and the leveling floating block, the leveling degree and the leveling degree can be realized on one step at the same time, and when the steps are separated, the leveling degree can be influenced, and when the leveling degree is influenced.

As shown in fig. 7, as a preferred embodiment, the sum of the distance from the lowest point of the first annular recess 12 to the top surface of the leveling block 84 and the distance from the highest point of the second annular recess to the bottom surface of the leveling punch 82 is equal to the preset height of the part 10.

As shown in fig. 5, as a preferred embodiment, the shape correcting structure assembly 8 further includes a leveling block 83, and the leveling block 83 is disposed at a position just above the outer edge of the groove of the leveling die 85.

As a preferred embodiment, the sizing structure assembly 8 further includes a sizing structure force transfer assembly 86 that applies an upward return force to the leveling punches 82.

As shown in fig. 3, as a preferred embodiment, the mold structure further includes an upper mold base 1, an upper backing plate 2, a stop plate 3, an upper stripper plate 4, a lower mold plate 5, a lower backing plate 6 and a lower mold base 7, which are sequentially stacked from top to bottom, a leveling float 84 and a leveling cavity die 85 are mounted on the lower mold plate 5, and a leveling block 83 is fixedly mounted on the upper stripper plate 4.

As a preferred embodiment, two upper base plates 2 are arranged between the upper die holder 1 and the stop plate 3.

As shown in fig. 3, as a preferred embodiment, the shape correcting structure force transferring assembly 86 includes a first force transferring elastic member 863, a first force transferring column 861 and a first force transferring gasket 862, wherein the first force transferring elastic member 863 is installed on the lower die holder 7, the first force transferring gasket 862 is fixed at one end of the first force transferring elastic member 863, the other end of the first force transferring gasket 862 is fixed at one end of the first force transferring column 861, and the other end of the first force transferring column 861 passes through the lower pad 6 and is fixed at one end of the leveling block 84 away from the leveling punch 82.

As a preferred embodiment, the leveling punches 82 are fixedly mounted between the upper backing plate 2 and the upper stripper plate 4 by means of first fixing members 81.

As shown in fig. 3-4, as a preferred embodiment, the mold structure further comprises a bulging structural assembly 9, wherein the bulging structural assembly 9 comprises a bulging leveling block 91, a stripping floating block 92 and a bulging male die 94, a groove for accommodating the bulging male die 94 is formed in the stripping floating block 92, and the bulging leveling block 91 is correspondingly arranged at a position right above the outer edge of the groove of the stripping floating block 92.

As a preferred embodiment, the bulging structural assemblies 9 are provided in the same mould as the shape correcting structural assemblies 8.

The parts are deviated in the production and manufacturing process, product necking and the like can be generated, the product necking can influence the effects of product height correction and flatness correction, after the product necking, the product is not easy to be sleeved in the first annular concave groove, and after correction, the stripping effect is influenced; the bulging structure assembly is adopted, and the bulging male die is utilized to prop open the product shrinkage edge, so that the subsequent correction of the product height and flatness is more convenient, the product quality is better, and the product meets the requirements of customers.

As shown in fig. 6, as a preferred embodiment, an expanding punch taper structure 941 for correcting the shrinkage of the part is provided on the expanding punch 94 near the end of the expanding leveling block 91.

As a preferred embodiment, the bulging punch cone 941 is a truncated cone with a decreasing radius from top to bottom.

As a preferred embodiment, the top surface of the bulging punch cone 941 and the side surface of the bulging punch cone 941 are provided with a circular arc transition. The side surface and the top surface of the conical structure of the bulging male die are in arc transition, and the surface of a machined part is not easy to scratch by arc transition.

As a preferred embodiment, the stripping floating block 92 is provided with a shrinkage correction groove 13 which is formed in cooperation with the bulging male die 94 and is used for correcting shrinkage of the part 10.

As shown in fig. 4, as a preferred embodiment, the bulging structure assembly 9 further comprises a bulging structure force transfer assembly 95.

As shown in fig. 3 to 4, as a preferred embodiment, a bulging leveling block 91 is fixedly installed on the upper stripper plate 4, a bulging male die 94 is fixedly installed on the lower die plate 5, and a stripper shoe 92 is slidably installed on the lower die plate 5 up and down.

As a preferred embodiment, the bulging structure force transfer assembly 95 includes a second force transfer elastic member 953, a second force transfer column 951 and a second force transfer gasket 952, the second force transfer elastic member 953 is fixed on the lower die base 7, the second force transfer gasket 952 is fixed at one end of the second force transfer elastic member 953, the other end of the second force transfer gasket 952 is fixed at one end of the second force transfer column 951, and the other end of the second force transfer column 951 passes through the lower pad 6 and is fixed at one end of the stripping floating block 92 away from the bulging leveling block 91.

As a preferred embodiment, the bulging punch 94 is fixed to the lower die plate 5 by a second fixing member 93.

As shown in fig. 3-7, the present invention also relates to a process for correcting a height and flatness of a mold structure, comprising the steps of:

step one, a groove for accommodating an bulging male die 94 is formed in a stripping floating block 92, the bulging male die 94 is positioned in the groove, a bulging leveling block 91 is positioned at a position right above the outer edge of the groove of the stripping floating block 92, a bulging structure force transmission assembly 95 for applying upward resilience force to the stripping floating block 92 is arranged at the lower end of the stripping floating block 92, a part 10 is placed on the upper surface of the stripping floating block 92 in the bulging structure assembly 9, and an upper die holder 1 moves downwards to drive the bulging leveling block 91 to press the edge of the part 10 on the stripping floating block 92 downwards;

step two, the upper die holder 1 continuously drives the part 10 downwards to be sleeved on the bulging male die 94, the bulging structure force transmission assembly 95 is compressed until the part shrinkage correction is completed, and the upper die holder 1 moves upwards to enable the part mouth to be separated from the bulging male die 94 and the stripping floating block 92 in sequence;

step three, a groove for accommodating a leveling floating block 84 is formed in the leveling female die 85, the leveling floating block 84 is positioned in the groove, the leveling male die 82 is arranged above the leveling floating block 84, and a first annular concave groove 12 for correcting the height of the part 10 is formed between the top surface edge of the opposite end of the leveling floating block 84 to the leveling male die 82 and the leveling female die 85; a leveling block 83 is arranged at a position right above the outer edge of the leveling female die groove 85; a shape correcting structure force transmission assembly 86 which applies upward resilience force to the plane correcting male die 82 is arranged at the lower end of the plane correcting male die 82; sleeving the adjusted part opening part on the outer edge of a leveling floating block 84, and enabling the upper die holder 1 to move downwards to drive a leveling block 83 and a leveling male die 82, wherein the leveling male die 82 and the leveling block 83 are tightly attached to the upper surface of the part 10;

step four, the upper die holder 1 continues to move downwards, the force transmission component 86 of the shape correcting structure is compressed, the edge of the part 10 is pressed on the upper surface of the leveling female die 85, and the shape correction of the part 10 is completed;

and fifthly, the upper die holder 1 moves upwards, the leveling male die 82 moves upwards under the elastic force of the leveling structure force transmission assembly 86 to be separated from the leveling female die 85, and then the part 10 is taken down from the leveling male die 82.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The die structure for correcting the height and the flatness is characterized by comprising a shape correcting structure component, wherein the shape correcting structure component comprises a leveling male die, a leveling female die and a leveling floating block, a groove for accommodating the leveling floating block is formed in the leveling female die, the leveling male die is arranged above the leveling floating block, and a first annular concave groove for correcting the height of a part is formed between the edge of the top surface of one end, opposite to the leveling male die, of the leveling floating block and the leveling female die; the width of the first annular concave groove is larger than the thickness of the part, and the difference between the width of the first annular concave groove and the thickness of the part is smaller than 0.05mm; the side surface of the first annular concave groove, which is far away from the adjacent leveling surface female die, and the top surface of the leveling floating block are in arc transition; the bottom edge of one end opposite to the leveling male die and the leveling female die is provided with a second annular concave groove, the second annular concave groove is in transition with the main body part of the leveling male die through an arc R2, the leveling female die is in transition with the top surface of the leveling female die through an arc R1 near the side surface of one side of the leveling floating block, and the radius of a circle where the arc R1 is located is smaller than the difference between the radius of the circle where the arc R2 is located and the thickness of a part.

2. The die structure for correcting height and flatness of claim 1, wherein the difference between the width of the first annular recess and the thickness of the part is less than or equal to 0.03mm.

3. A die structure for correcting height and flatness according to claim 2, wherein the sum of the distance from the lowest point of the first annular recess to the top surface of the correcting floating block and the distance from the highest point of the second annular recess to the bottom surface of the leveling punch is equal to the preset height of the part.

4. A die structure for correcting height and flatness as claimed in claim 3, wherein the shape correcting structure assembly further comprises a leveling block disposed at a position immediately above the outer edge of the leveling die recess.

5. A die structure for correcting height and flatness of claim 4, wherein the shape correcting structure assembly further comprises a shape correcting structure force transmitting assembly for applying upward resilience force to the leveling punches.

6. The die structure for correcting height and flatness of claim 5, further comprising an upper die holder, an upper backing plate, a stopper plate, an upper stripper plate, a lower die plate, a lower backing plate and a lower die holder stacked in this order from top to bottom, wherein the height correcting floating block and the leveling die are mounted on the lower die plate, and wherein the leveling block is fixedly mounted on the upper stripper plate.

7. The die structure for correcting height and flatness of claim 6, wherein the shape correcting structure force transferring assembly comprises a first force transferring elastic member, a first force transferring column and a first force transferring gasket, the first force transferring elastic member is mounted on the lower die base, the first force transferring gasket is fixed at one end of the first force transferring elastic member, the other end of the first force transferring gasket is fixed at one end of the first force transferring column, and the other end of the first force transferring column penetrates through the lower base plate and is fixed at one end of the correcting floating block far away from the leveling punch.

8. The mold structure for correcting height and flatness of claim 6, wherein the leveling punch is fixedly mounted between the upper backing plate and the upper stripper plate by a first fixing member.

9. The die structure for correcting height and flatness of claim 6, further comprising a bulging structural assembly including a bulging leveling block, a stripping floating block and a bulging male die, wherein a groove for accommodating the bulging male die is formed in the stripping floating block, and the bulging leveling block is correspondingly arranged at a position right above the outer edge of the stripping floating block groove.

10. The die structure for correcting height and flatness according to claim 9, wherein an expanding punch conical structure for correcting shrinkage of a part is arranged on the expanding punch near one end of the expanding leveling block.

11. A die structure for correcting height and flatness as claimed in claim 10, wherein said bulging punch cone is a circular table with a gradually decreasing radius length from top to bottom.

12. A die structure for correcting height and flatness as claimed in claim 11, wherein the top surface of the tapered structure of the bulging punch and the side surface of the tapered structure of the bulging punch are provided with arc transitions.

13. The die structure for correcting height and flatness according to claim 12, wherein the stripping floating block is provided with a shrinkage correction groove which is formed by matching with the bulging male die and is used for correcting shrinkage of the part.

14. A die structure for correcting height and flatness of claim 13, wherein the bulging structural assembly further comprises a bulging structural force transfer assembly.

15. The die structure for correcting height and flatness of claim 14, wherein said bulging leveling block is fixedly mounted on said upper stripper plate, said bulging male die is fixedly mounted on said lower die plate, and said stripper shoe is slidably mounted on said lower die plate up and down.

16. The die structure for correcting height and flatness of claim 15, wherein the bulging structure force transferring assembly comprises a second force transferring elastic member, a second force transferring column and a second force transferring gasket, the second force transferring elastic member is fixed on the lower die holder, the second force transferring gasket is fixed at one end of the second force transferring elastic member, the other end of the second force transferring gasket is fixed at one end of the second force transferring column, and the other end of the second force transferring column penetrates through the lower base plate and is fixed at one end of the stripping floating block far away from the bulging leveling block.

17. A correction process for correcting a mold structure for height and flatness using the method of any one of claims 1 to 16, comprising the steps of: