CN210877101U - High-precision stamping die - Google Patents

Abstract

The utility model relates to a high accuracy stamping die uses in the stamping die field, and its technical scheme main points are: the punching die comprises an upper die and a lower die which are positioned on a punching machine, wherein abutting grooves are respectively formed in the two sides of the end surface of the upper die facing to the lower die along the length direction, abutting plates are respectively connected in the abutting grooves through a plurality of springs, and a plurality of limiting plates are arranged on the end surface of the lower die facing to the upper die; when the upper die and the lower die are mutually clamped, the workpiece is abutted between the upper die and the lower die, the abutting plate is abutted on the workpiece and is respectively contacted with the limiting plate along the two ends of the length direction, and the limiting plate is integrally positioned in the abutting groove. The utility model discloses the technical effect who has is: when the upper die is used for stamping, a workpiece on the lower die can be fixed firstly, so that the possibility of reduction of stamping precision due to the fact that the workpiece moves relative to the lower die in the stamping process is reduced, and the stamping precision of the workpiece is improved.

Description

High-precision stamping die

Technical Field

The utility model belongs to the technical field of stamping die's technique and specifically relates to a high accuracy stamping die is related to.

Background

Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping.

Publication number CN207872913U discloses a cooling device of a stamping die and the stamping die, wherein the cooling device comprises a first cooling cavity, a second cooling cavity and a coolant storage device; the first cooling cavity is arranged in an upper die plate of the stamping die and forms a sealed accommodating space of coolant around the periphery of a stamping male die of the stamping die; the second cooling cavity is arranged in the lower template of the stamping die and surrounds the periphery of the stamping female die of the stamping die to form another sealed accommodating space of the coolant; the coolant storage device is arranged outside the stamping die and distributes coolant to the first cooling cavity and the second cooling cavity through the air inlet pipe; the first cooling cavity and the second cooling cavity are communicated with exhaust pipelines, and the coolant can be discharged or recovered.

The above prior art solutions have the following drawbacks: when the long-strip-shaped workpiece is stamped, the workpiece on the lower die is not fixed in advance, and the workpiece is easy to move relative to the lower die in the stamping process, so that the stamping position deviates, and the stamping precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy stamping die, its advantage: when the upper die is used for stamping, a workpiece on the lower die can be fixed firstly, so that the possibility of reduction of stamping precision due to the fact that the workpiece moves relative to the lower die in the stamping process is reduced, and the stamping precision of the workpiece is improved.

The above technical purpose of the present invention can be achieved by the following technical solutions: a high-precision stamping die comprises an upper die and a lower die which are positioned on a punch press, wherein abutting grooves are respectively formed in the two sides of the end surface of the upper die facing the lower die along the length direction, abutting plates are respectively connected in the abutting grooves through a plurality of springs, and a plurality of limiting plates are arranged on the end surface of the lower die facing the upper die; when the upper die and the lower die are mutually clamped, the workpiece is abutted between the upper die and the lower die, the abutting plate is abutted on the workpiece, two ends of the abutting plate along the length direction are respectively contacted with the limiting plate, and the limiting plate is integrally positioned in the abutting groove.

According to the technical scheme, during stamping, the upper die is driven by the punch to impact the lower die, the abutting plate can abut against a workpiece on the lower die at first, and then the spring is stressed to contract and is pressed in the abutting groove together with the abutting piece under the pressure action of the upper die; two ends of the abutting plate abut against the two limiting plates respectively, so that the abutting plate is difficult to move towards the limiting plates under stress; the abutting plate can abut the workpiece on the lower die before the workpiece is impacted by the upper die, and the workpiece is limited by the limiting plate and is difficult to move, so that the effect of firstly fixing the workpiece on the lower die when the upper die performs stamping operation is achieved; the possibility of reduction of stamping precision caused by movement of the workpiece relative to the lower die in the stamping process is reduced.

The utility model discloses further set up to: two fixing plates are respectively and vertically arranged on two end faces of the lower die in the length direction, the fixing plates partially extend out of the lower die towards the end face of the upper die, and a workpiece is located between the four fixing plates.

Through above-mentioned technical scheme, the work piece on the bed die contacts with four fixed plates respectively along width direction's both ends face, and four fixed plates play the effect of fixed work piece position for the work piece is difficult to remove along self width direction when the punching press, has further reduced the in-process of punching press, and the work piece moves for the bed die, leads to the possibility that the punching press precision reduces.

The utility model discloses further set up to: the fixed plates on the same side are respectively penetrated and connected with a supporting shaft in a threaded manner, one end of the supporting shaft is rotatably connected with a supporting piece, and the workpiece passes through the supporting pieces on the same side.

Through the technical scheme, a worker can respectively rotate the two abutting shafts to drive the two abutting sheets to move until the two abutting sheets respectively contact with two end faces of workpieces with different widths along the width direction, so that the workpieces are limited; two support tight pieces can carry out spacingly to the work piece of different width, have promoted the suitability of fixed plate to different width work pieces.

The utility model discloses further set up to: be located and be equipped with the connecting plate between two fixed plates of homonymy, two fixed plates are fixed connection respectively on the connecting plate, the connecting plate is along length direction's both ends respectively the part extend the bed die, the bed die is equipped with respectively along width direction's both sides and supports tight piece, two the trompil has been seted up respectively at the both ends of connecting plate, wear to be equipped with fastening bolt in the trompil, support tight piece along length direction's both ends face on seted up respectively with fastening bolt assorted bolt hole, fastening bolt is in the bolt hole towards the one end bolted connection of supporting tight piece.

Through the technical scheme, a worker can mount the connecting plate on the lower die in a mode of rotating the fastening bolt until the connecting plate is abutted against the lower die; after the punching is finished, a worker can dismount the fastening bolt in a bolt dismounting mode, and then respectively take the connecting plate and the abutting block down from the lower die so as to conveniently store the lower die; the connecting plate and the abutting block can be detached, so that the space required when the lower die is stored is saved.

The utility model discloses further set up to: the lower die is provided with fixing grooves along two end faces in the length direction, and the connecting plate is located in the fixing grooves and is in mutual contact with the two end faces of the fixing grooves.

Through above-mentioned technical scheme, the fixed slot plays spacing effect to the connecting plate for the limiting plate is difficult to appear squinting along self width direction for the bed die, thereby has reduced the position of connecting plate for the bed die and has appeared squinting, leads to the work piece to appear squinting under the promotion of fixed plate and between the bed die, influences the possibility of work piece punching press precision.

The utility model discloses further set up to: a material receiving box is arranged below the lower die, a sinking groove is formed in the opening of the material receiving box, and the lower die is erected in the sinking groove.

Through above-mentioned technical scheme, the produced waste material of stamping process can fall along the punching press hole on the bed die, then unified piling up in connecing the material box to the staff can collect the waste material and recycle.

The utility model discloses further set up to: and a plurality of support columns are vertically arranged on the bottom surface of the material receiving box, and one ends of the support columns facing the lower die are tightly propped against the lower die.

Through above-mentioned technical scheme, a plurality of support columns play the effect of supporting the bed die for the bed die is difficult to material receiving box central direction bending deformation under the pressure effect at last mould, has reduced because material receiving box is the cavity box, makes the bed die atress of material receiving box top inhomogeneous, leads to the bed die distortion when receiving the pressure of last mould, influences the possibility of work piece machining precision.

The utility model discloses further set up to: and the end surface of the abutting sheet, which is far away from the spring, is provided with an anti-slip pad, and the anti-slip pad abuts against the workpiece tightly.

Through above-mentioned technical scheme, the slipmat has increased the frictional force between tight piece and the work piece for the work piece is difficult to slide for propping tight piece, thereby has further promoted and has supported the fixed effect of tight piece to the work piece.

To sum up, the utility model discloses a beneficial technological effect does:

1. the abutting plate can abut the workpiece on the lower die before the workpiece is impacted by the upper die, so that the possibility of reduction of stamping precision caused by movement of the workpiece relative to the lower die in the stamping process is reduced, and the stamping precision of the workpiece is improved;

2. the connecting plate and the abutting block can be detached, so that the space required when the lower die is stored is saved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic cross-sectional view of the pressing plate portion according to the present embodiment.

Fig. 3 is an exploded view of the present embodiment for embodying the fixing groove.

Reference numerals: 1. punching; 2. an upper die; 3. a lower die; 4. abutting against the groove; 5. a spring; 6. a propping plate; 7. a limiting plate; 8. a fixing plate; 9. the shaft is abutted; 10. a propping sheet; 11. a connecting plate; 12. a propping block; 13. opening a hole; 14. fastening a bolt; 15. bolt holes; 16. fixing grooves; 17. a material receiving box; 18. sinking a groove; 19. a support pillar; 20. a non-slip mat.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a high-precision stamping die is shown in figures 1 and 2 and comprises an upper die 2 and a lower die 3 which are arranged on a punch press 1, wherein the upper die 2 is a stamping male die, and the lower die 3 is a stamping female die matched with the upper die 2; go up mould 2 and seted up respectively along length direction's both sides on the terminal surface of bed die 3 and support tight groove 4, support tightly to be connected with along vertical direction through spring 5 in the groove 4 respectively and support tight board 6, support tight board 6 and bond on deviating from the terminal surface of spring 5 and have slipmat 20, slipmat 20 is made by rubber, supports tight groove 4 and is set up to: when the spring 5 is in a natural state, the part of the abutting plate 6 is positioned outside the abutting groove 4; when the spring 5 is stressed to contract, the abutting plate 6, the non-slip mat 20 and the spring 5 can be integrally contracted into the abutting groove 4.

As shown in fig. 1 and 2, four limiting plates 7 are respectively and fixedly arranged on the end surface of the upper mold 2 of the lower mold 3 along two sides in the width direction, the four limiting plates 7 are respectively positioned below the two abutting grooves 4, the heights of the limiting plates 7 are consistent with the depths of the abutting grooves 4, and the distance between the two limiting plates 7 positioned below the same abutting groove 4 is consistent with the length of the abutting plate 6. Therefore, when the punch 1 drives the upper die 2 to impact downwards to punch a long-strip-shaped workpiece on the lower die 3, the abutting plate 6 abuts against the workpiece before the upper die 2 contacts with the workpiece, two end faces of the abutting plate 6 along the length direction of the abutting plate 6 are respectively contacted with the two limiting plates 7, and the abutting plate 6 abuts against the workpiece so that the workpiece is difficult to move towards the periphery relative to the lower die 3; the anti-slip pad 20 increases the friction force between the abutting plate 6 and the workpiece, so that the resistance of the workpiece when the workpiece is stressed to move relative to the abutting plate 6 is increased; the limiting plates 7 are tightly abutted to two ends of the abutting plate 6, so that stress distortion of the spring 5 is reduced, the abutting plate 6 is driven to move along the length direction of the abutting plate 6, a workpiece below the abutting plate 6 moves along with the movement of the workpiece, and the possibility of influencing the stamping effect of the workpiece is reduced; so that the abutting plate 6 can firstly fix the workpiece on the lower die 3 when the upper die 2 performs stamping operation; the possibility of reduction in the punching accuracy due to the movement of the workpiece relative to the lower die 3 during the punching process is reduced.

As shown in fig. 3, the tight piece 12 of support has been placed respectively along self width direction's both sides to bed die 3, the length that supports tight piece 12 is less than bed die 3's length, support tight piece 12 and seted up bolt hole 15 on two terminal surfaces along self length direction respectively, bed die 3 has placed respectively along self length direction's both sides both ends and has partially extended the connecting plate 11 of bed die 3 respectively, connecting plate 11 is located the below of bed die 3 upper surface towards the terminal surface of bed die 2, two connecting plates 11 are extended the both ends of bed die 3 and are seted up respectively with bolt hole 15 assorted trompil 13, wear to be equipped with in the trompil 13 with trompil 13 assorted fastening bolt 14, two connecting plates 11 are worn to establish trompil 13 respectively through four fastening bolt 14 and bolted connection is supported the both sides of fastening and is fixed on bed die 3 on supporting tight.

As shown in fig. 3, two fixed plates 8 are vertically and fixedly arranged on the end faces of the two connecting plates 11 departing from the lower die 3 respectively, the two fixed plates 8 positioned on the same side are respectively positioned on the two sides of the lower die 3 along the length direction and above the upper surface of the lower die 3 towards the end face of the upper die 2, the two fixed plates 8 are respectively penetrated and screwed with the tightening shafts 9, and the two tightening shafts 9 are respectively rotatably connected with tightening pieces 10 on the opposite end faces. Consequently, the staff can place the work piece on bed die 3, and at this moment, four are supported tight piece 10 and are located the work piece respectively along self width direction's both sides, rotate and support the tight axle 9 drive and support tight piece 10 and remove, and until four support tight piece 10 respectively with the both sides limit of work piece in contact with each other, the both sides limit of work piece is blockked by four respectively supporting tight piece 10 for the work piece is difficult to take place the skew along 3 width direction of bed die in stamping process, thereby has further promoted the punching press precision of work piece.

As shown in fig. 3, the distance between the two abutting sheets 10 located on the same side can be adjusted by rotating the abutting shaft 9, so that the two abutting sheets 10 can limit workpieces with different widths, thereby improving the applicability to the workpieces with different widths; after the punching of work piece was accomplished, four fastening bolt 14 were lifted off respectively to the mode that staff's accessible bolt was dismantled, later lift off connecting plate 11 and support tight piece 12 respectively to the staff can accomodate lower mould 3, saves the storage space.

As shown in fig. 3, fixing grooves 16 are formed on both end surfaces of the lower mold 3 in the longitudinal direction, and the width of the fixing grooves 16 is equal to the width of the connecting plate 11. Therefore, staff's accessible fastening bolt 14 and support tight piece 12 with connecting plate 11 chucking in fixed slot 16, the setting of fixed slot 16 makes connecting plate 11 be difficult to the skew from top to bottom, has reduced connecting plate 11 and has appeared the skew, drives and supports tight piece 10 skew, then drives the work piece skew that is located between the tight piece 10 of supporting, and then influences the possibility of work piece punching press precision.

As shown in fig. 3, a material receiving box 17 is placed below the lower die 3, a sinking groove 18 is formed in an opening of the material receiving box 17, the lower die 3 is erected in the sinking groove 18, the outer periphery of the lower die is in contact with the inner wall of the sinking groove 18, a plurality of supporting columns 19 are fixedly connected to the bottom of the material receiving box 17, and the upper end surfaces of the supporting columns 19 are flush with the bottom surface of the sinking groove 18. Therefore, the worker can place the lower die 3 in the sink 18 on the material receiving box 17, and the waste materials falling from the lower die 3 in the stamping process can fall into the material receiving box 17, so that the effect of collecting the waste materials is achieved; the supporting columns 19 play a role in supporting the lower die 3, so that the impact force from the upper die 2 can be uniformly dispersed on the material receiving box 17 through the sinking grooves 18 and the supporting columns 19, and the possibility of stress deformation of the material receiving box 17 or the upper die 2 in the stamping process is reduced.

The implementation principle of the embodiment is as follows: the method comprises the following steps that a worker firstly places a workpiece on a lower die 3, adjusts the position of the workpiece to a punching position, respectively rotates four abutting shafts 9 to adjust the positions of four abutting sheets 10 until the four abutting sheets 10 are respectively contacted with the workpiece, then starts a punch press 1 to punch the workpiece, when an upper die 2 falls to the lower die 3 to punch the workpiece, the abutting sheets 10 on the upper die 2 firstly abut against the workpiece, so that the workpiece is difficult to move, and when the workpiece is punched, the abutting sheets 10 are integrally retracted into abutting grooves 4, so that the workpiece is fixed under the condition that the punching process is not influenced, and the punching precision of the workpiece is improved; after the punching press is completed, the connecting plate 11 and the abutting block 12 can be detached respectively through bolts, and the lower die 3 is taken down from the material receiving box 17, so that the upper die 2 and the lower die 3 can be stored conveniently, and the storage space is saved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a high accuracy stamping die, contains last mould (2) and bed die (3) that are located punch press (1), its characterized in that: two sides of the end face, facing the lower die (3), of the upper die (2) along the length direction are respectively provided with a tightening groove (4), the tightening grooves (4) are respectively connected with tightening plates (6) through a plurality of springs (5), and the end face, facing the upper die (2), of the lower die (3) is provided with a plurality of limiting plates (7); when going up mould (2) and bed die (3) when block each other, the work piece is supported tightly between last mould (2) and bed die (3), support tight board (6) and support tightly on the work piece and contact with limiting plate (7) respectively along length direction's both ends, limiting plate (7) are whole to be located and support tight groove (4).

2. The high-precision stamping die according to claim 1, wherein: two fixing plates (8) are respectively and vertically arranged on two end faces of the lower die (3) in the length direction, the fixing plates (8) partially extend out of the lower die (3) towards the end face of the upper die (2), and workpieces are located among the four fixing plates (8).

3. The high-precision press die according to claim 2, characterized in that: be located two of homonymy wear to establish respectively and threaded connection has the tight axle (9) of supporting on fixed plate (8), the one end of supporting axle (9) is rotated and is connected with and supports tight piece (10), and the work piece is from being located two of homonymy pass between tight piece (10).

4. The high-precision press die of claim 3, wherein: be equipped with connecting plate (11) between two fixed plates (8) that are located the homonymy, two fixed plates (8) are fixed connection respectively on connecting plate (11), partly extend bed die (3) respectively along length direction's both ends in connecting plate (11), bed die (3) are equipped with respectively along width direction's both sides and support tight piece (12), two trompil (13) have been seted up respectively at the both ends of connecting plate (11), wear to be equipped with fastening bolt (14) in trompil (13), support tight piece (12) set up respectively on length direction's the both ends face with fastening bolt (14) assorted bolt hole (15), fastening bolt (14) are towards the one end bolted connection of supporting tight piece (12) in bolt hole (15).

5. The high-precision stamping die according to claim 4, wherein: fixing grooves (16) are formed in two end faces of the lower die (3) in the length direction respectively, and the connecting plate (11) is partially located in the fixing grooves (16) and is in contact with the two end faces of the fixing grooves (16) respectively.

6. The high-precision stamping die according to claim 1, wherein: a material receiving box (17) is arranged below the lower die (3), a sinking groove (18) is formed in the opening of the material receiving box (17), and the lower die (3) is erected in the sinking groove (18).

7. The high-precision stamping die according to claim 6, wherein: a plurality of supporting columns (19) are vertically arranged on the bottom surface of the material receiving box (17), and one end, facing the lower die (3), of each supporting column (19) is tightly propped against the lower die (3).

8. The high-precision press die of claim 3, wherein: and the end surface of the abutting sheet (10) departing from the spring (5) is provided with an anti-slip pad (20), and the anti-slip pad (20) abuts against the workpiece.

Images