CN115365390B

CN115365390B - High-precision stamping die structure applied to metal terminal machining process

Info

Publication number: CN115365390B
Application number: CN202211299482.6A
Authority: CN
Inventors: 沈磊; 罗成; 孙科
Original assignee: Hotan Industrial Precision Electronics Changshu Co ltd
Current assignee: Hotan Industrial Precision Electronics Changshu Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-24
Anticipated expiration: 2042-10-24
Also published as: CN115365390A

Abstract

The invention discloses a high-precision stamping die structure applied to a metal terminal processing technology, which comprises an upper die assembly and a lower die assembly; the upper die assembly comprises a stamping oil cylinder and a base plate arranged at the movable end of the bottom of the stamping oil cylinder, two first extrusion dies are arranged on the side wall of the base plate, a connecting frame is arranged at the bottom of the base plate, and two second extrusion dies are arranged at the bottom of the connecting frame; through adopting the continuous processing mode of multistage punching press, can conveniently make product stamping forming one time, effectively simplify the technology step, shorten the process, improve work efficiency to effectively save the required equipment quantity of processing, reduce cost input has effectively avoided the error to add up simultaneously, improves the machining precision.

Description

High-precision stamping die structure applied to metal terminal machining process

Technical Field

The invention relates to the technical field of stamping equipment, in particular to a high-precision stamping die structure applied to a metal terminal machining process.

Background

As is well known, a metal terminal is a metal sheet for facilitating connection and fixation of a wire, when the terminal is used, a stripped end of the wire penetrates through the terminal and is fixed through a bolt or other structures, so that the terminal is connected with the wire, the terminal is mainly used for facilitating connection or disconnection of two wires without welding or winding, and convenience is improved.

The metal terminal is generally formed by punching a metal sheet, as shown in fig. 8, when the metal terminal is processed, firstly, a blank with a fixed shape is cut out of a metal plate by a die cutting machine, then, a bending machine or a punching machine is used for bending a specified position on the blank, so that a product with a specified shape is formed, and because the positions needing to be processed on the metal terminal are more, when a traditional processing mode is adopted, the specified shapes on the terminal need to be formed and processed one by a plurality of devices one by one, the processing technology is more complicated, the working procedure is longer, the working efficiency is lower, and a plurality of devices are needed to be matched for processing, the cost investment is larger, and meanwhile, because a plurality of devices are matched for processing, the accumulated error is easy to generate, so that the processing precision of the product is reduced.

Disclosure of Invention

In order to solve the technical problems, the invention provides a high-precision stamping die structure applied to a metal terminal machining process.

In order to achieve the purpose, the invention adopts the technical scheme that:

the high-precision stamping die structure applied to the metal terminal machining process comprises an upper die assembly and a lower die assembly;

the upper die assembly comprises a stamping oil cylinder and a base plate arranged at the movable end of the bottom of the stamping oil cylinder, first extrusion dies are arranged on the left side wall and the right side wall of the base plate, a connecting frame is arranged at the bottom of the base plate, second extrusion dies are arranged on the left side and the right side of the bottom of the connecting frame, lower pressing plates are arranged at the bottom of the second extrusion dies, and the two lower pressing plates are located between the two second extrusion dies;

lower die component includes the layer board, all rotates on the lateral wall about the layer board and is provided with the right angle template, all rotates on the lateral wall around the right angle template and is provided with the arc template, the contact is provided with the upset template on the back lateral wall of layer board, and equal vertical slip is provided with the propulsion template about the upset template on the lateral wall, is provided with the third extrusion mould on the lateral wall of propulsion template.

Further, the connecting frame is installed at a position close to the side wall of the substrate, and the connecting frame is staggered with the position of the first extrusion die, so that a gap is formed between the two second extrusion dies.

Further, still include outer box, outer box is located the outside of lower mould subassembly, is fixed with a smooth section of thick bamboo on the lateral wall of layer board, and the lateral wall slidable mounting of smooth section of thick bamboo is on outer box inner wall, and it is provided with the slide bar to slide in the smooth section of thick bamboo, and the slide bar bottom is fixed in outer box inner wall bottom, and the cover is equipped with the spring on the slide bar, and the spring bottom is connected with outer box, and the spring top is connected with a smooth section of thick bamboo.

Further, the bottom of the right-angle formwork is provided with a plurality of limiting plates, the outer ends of the limiting plates are in contact with the outer wall of the arc-shaped formwork, and a first plate spring is connected between the limiting plates and the arc-shaped formwork.

Furthermore, a plurality of guide plates are fixed at the bottom of the right-angle template, a movable plate is arranged on the guide plates in a sliding mode and is horizontal, first push-pull plates are arranged at two ends of the movable plate in an inclined and rotating mode, the outer end of each first push-pull plate is installed on the outer wall of the arc-shaped template in a rotating mode, a second push-pull plate is arranged at the bottom of the movable plate in an inclined and rotating mode, and the bottom of the second push-pull plate is installed at the bottom of the inner wall of the outer box body in a rotating mode.

Furthermore, the bottom of the turnover template is fixed with an arc-shaped guide rod, the arc-shaped guide rod is provided with a guide sleeve in a sliding manner, the outer side wall of the guide sleeve is fixed with a fixed plate, and the outer end of the fixed plate is fixedly connected with the inner wall of the outer box body.

Furthermore, a sliding block is arranged on the side wall of the pushing template in a sliding mode, and a second plate spring is connected between the sliding block and the pushing template.

Furthermore, a third push-pull plate is obliquely and rotatably arranged on the side wall of the supporting plate, a turnover shaft is fixed at the outer end of the third push-pull plate, a sliding groove is horizontally formed in the inner side wall of the outer box body, the outer end of the turnover shaft is slidably arranged in the sliding groove, two fourth push-pull plates are obliquely and fixedly arranged on the turnover shaft, a fifth push-pull plate is obliquely and rotatably arranged at the outer end of the fourth push-pull plate, and the outer end of the fifth push-pull plate is rotatably arranged at the bottom of the propelling template.

Further, still include the direction reinforcing plate, the direction reinforcing plate is fixed in outer box inner wall bottom, and the slip of direction reinforcing plate top inserts in the layer board.

Compared with the prior art, the invention has the beneficial effects that: through adopting the continuous processing mode of multistage punching press, can conveniently make product stamping forming one time, effectively simplify the technology step, shorten the process, improve work efficiency to effectively save the required equipment quantity of processing, reduce cost input has effectively avoided the error to add up simultaneously, improves the machining precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is an enlarged schematic view of the ram cylinder of FIG. 1;

FIG. 3 is a front side sectional view of the outer case of FIG. 1;

FIG. 4 is a right side sectional view of the outer case of FIG. 1;

FIG. 5 is an enlarged view of the pallet of FIG. 3;

FIG. 6 is an enlarged view of the flipping module shown in FIG. 4;

FIG. 7 is a schematic cross-sectional view of the roll-over form of FIG. 6;

FIG. 8 is a schematic structural view of a processed product of the present invention;

in the drawings, the reference numbers: 1. punching an oil cylinder; 2. a substrate; 3. a first extrusion die; 4. a connecting frame; 5. a second extrusion die; 6. a lower pressing plate; 7. a pallet; 8. a right-angle template; 9. an arc-shaped template; 10. turning over the template; 11. advancing the template; 12. a third extrusion die; 13. an outer case; 14. a slide cylinder; 15. a slide bar; 16. a spring; 17. a limiting plate; 18. a first plate spring; 19. a guide plate; 20. moving the plate; 21. a first push-pull plate; 22. a second push-pull plate; 23. an arc-shaped guide rod; 24. a guide sleeve; 25. a fixing plate; 26. a slider; 27. a second plate spring; 28. a third push-pull plate; 29. a turning shaft; 30. a chute; 31. a fourth push-pull plate; 32. a fifth push-pull plate; 33. and a guide reinforcing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

As shown in fig. 1 to 7, the high-precision stamping die structure applied to the metal terminal processing technology of the present invention includes an upper die assembly and a lower die assembly;

the upper die assembly comprises a stamping oil cylinder 1 and a base plate 2 arranged at the movable end of the bottom of the stamping oil cylinder 1, first extrusion dies 3 are arranged on the left side wall and the right side wall of the base plate 2, a connecting frame 4 is arranged at the bottom of the base plate 2, second extrusion dies 5 are arranged on the left side and the right side of the bottom of the connecting frame 4, lower pressing plates 6 are arranged at the bottoms of the second extrusion dies 5, and the two lower pressing plates 6 are located between the two second extrusion dies 5;

lower module includes layer board 7, all rotates on the lateral wall about layer board 7 and is provided with right angle template 8, all rotates on the lateral wall around right angle template 8 and is provided with arc template 9, the contact is provided with upset template 10 on the back lateral wall of layer board 7, and equal vertical slip is provided with impels template 11 on the lateral wall about upset template 10, is provided with third extrusion die 12 on the lateral wall of impelling template 11.

Specifically, two first extrusion dies 3 are located the left and right sides of base plate 2, two second extrusion dies 5 are located the left and right sides of base plate 2, and two second extrusion dies 5 are located the left and right sides of layer board 7, the lateral wall all sets up to the arc around the second extrusion dies 5, two right angle template 8 are located the left and right sides of layer board 7 respectively, the fixed slot has all been seted up on the lateral wall about layer board 7, right angle template 8 level is located the fixed slot, right angle template 8's top and fixed slot inner wall top rotate to be connected, right angle template 8's lateral wall and fixed slot inside wall contact, the fixed slot inside wall is spacing to right angle template 8 this moment, two arc template 9 are located the front and back both sides of right angle template 8, upset template 10 is located the rear side of layer board 7, the left and right sides of upset template 10 all is fixed with smooth arris, two impel template 11 slidable mounting respectively on two smooth arris, third extrusion die 12 is fixed at the lateral wall top of impelling template 11.

The position of the substrate 2 corresponds to the position of the pallet 7, the position of the first extrusion die 3 corresponds to the position of the third extrusion die 12, the positions of the second extrusion die 5 and the lower press plate 6 correspond to the position of the right-angle die plate 8, the position of the arc-shaped die plate 9 corresponds to the arc-shaped sidewall on the second extrusion die 5, and the positions of the inverting die plate 10 and the advancing die plate 11 correspond to the sidewall of the substrate 2.

In actual use, a blank is placed on the top of a supporting plate 7, an extending part at the rear side of the blank is positioned on the top of an overturning template 10, a stamping oil cylinder 1 pushes a base plate 2, a first extrusion die 3, a connecting frame 4, a second extrusion die 5 and lower pressing plates 6 to synchronously move downwards, the two lower pressing plates 6 firstly contact with the blank on the supporting plate 7 and push the blank to bend downwards, the blank is bent on the supporting plate 7 and forms a U shape with an opening facing downwards, when the base plate 2 contacts with the top of the supporting plate 7, the second extrusion die 5 and the lower pressing plates 6 move to specified positions on the supporting plate 7, the base plate 2 pushes the supporting plate 7 to synchronously move downwards, the supporting plate 7 is changed from a static state to a moving state, at the moment, the right-angle template 8 is overturned upwards, the inner wall of the right-angle template 8 bends the blank on the upper side, and the blank is attached to the outer wall of the second extrusion die 5 and the bottom of the lower pressing plates 6, so that the blank forms the U shape with the opening upwards, when the right-angle template 8 rotates from a horizontal state to a vertical state, the right-angle template 8 finishes the processing work of the blank, the arc template 9 rotates, the arc template 9 extrudes the outer edge part of the blank on the right-angle template 8 towards the arc side wall of the second extrusion die 5 and enables the blank to be pasted on the arc side wall of the second extrusion die 5, so that the part of the blank forms an arc, when the bottom of the substrate 2 is contacted with the top of the supporting plate 7, the turnover template 10 is turned over, the turnover template 10 pushes the blank on the turnover template to deform from the horizontal state to the vertical state through extrusion, at the moment, the part of the blank is pasted with the side wall of the substrate 2, the turnover template 10 rotates from the horizontal state to the vertical state, then the two pushing templates 11 are pushed to synchronously move forwards, the two pushing templates 11 drive the two third extrusion dies 12 to synchronously move, the two pushing templates 11 push the outer edge of the blank on the side wall pasting part of the substrate 2 to bend forwards, therefore, the blank of the part forms a U shape with a forward opening, meanwhile, the third extrusion die 12 and the first extrusion die 3 can perform extrusion deformation processing on the blank between the third extrusion die and the first extrusion die, and the stamping, bending and forming processing work of the blank is finished, so that a multi-section stamping processing mode of a product is realized.

Through adopting the continuous processing mode of multistage punching press, can conveniently make product stamping forming one time, effectively simplify the technology step, shorten the process, improve work efficiency to effectively save the required equipment quantity of processing, reduce cost input has effectively avoided the error to add up simultaneously, improves the machining precision.

As shown in fig. 2, it is preferable that the connection frame 4 is installed at a position close to the side wall of the base plate 2, and the connection frame 4 is staggered with the position of the first extrusion die 3 so that a space is formed between the two second extrusion dies 5.

Specifically, the width of holding down plate 6 is less than the width of second extrusion die 5, and the width of holding down plate 6 is less than the opening width after the bending of blank arc on second extrusion die 5, after product processing was accomplished this moment, the product of cladding on base plate 2 and first extrusion die 3 can descend and pass the space between two second extrusion die 5, the product of cladding descends in step and passes holding down plate 6 on the 5 outer walls of second extrusion die, thereby conveniently pull down the product after processing smoothly, avoid the product to warp the back card on last mould assembly.

As shown in fig. 3, as a preferred embodiment of the foregoing embodiment, the die further includes an outer box 13, the outer box 13 is located outside the lower die assembly, a sliding cylinder 14 is fixed on a side wall of the supporting plate 7, an outer side wall of the sliding cylinder 14 is slidably mounted on an inner wall of the outer box 13, a sliding rod 15 is slidably disposed in the sliding cylinder 14, a bottom of the sliding rod 15 is fixed at a bottom of the inner wall of the outer box 13, a spring 16 is sleeved on the sliding rod 15, a bottom of the spring 16 is connected with the outer box 13, and a top of the spring 16 is connected with the sliding cylinder 14.

Specifically, when the supporting plate 7 moves downwards, the supporting plate 7 drives the sliding cylinder 14 to slide on the inner wall of the outer box body 13, meanwhile, the sliding rod 15 guides the sliding cylinder 14, the sliding cylinder 14 pushes the spring 16 to elastically deform, and when the substrate 2 moves upwards and is separated from the supporting plate 7, the spring 16 pushes the sliding cylinder 14 and the supporting plate 7 to return to the initial positions.

As shown in fig. 5, as a preferred embodiment, the bottom of the right-angle formwork 8 is provided with a plurality of limiting plates 17, outer ends of the limiting plates 17 contact with outer walls of the arc-shaped formworks 9, and a first plate spring 18 is connected between the limiting plates 17 and the arc-shaped formworks 9.

Specifically, limiting plate 17 can carry out the screens to arc template 9 position on right angle template 8, and first leaf spring 18 can produce elastic tension to arc template 9 to conveniently make arc template 9 to blank extrusion deformation back, first leaf spring 18 pulling arc template 9 resets.

As shown in fig. 5, as a preferred embodiment of the foregoing embodiment, a plurality of guide plates 19 are fixed at the bottom of the right-angle formwork 8, a moving plate 20 is slidably disposed on the plurality of guide plates 19, the moving plate 20 is horizontal, a first push-pull plate 21 is obliquely and rotatably disposed at both ends of the moving plate 20, an outer end of the first push-pull plate 21 is rotatably mounted on the outer wall of the arc-shaped formwork 9, a second push-pull plate 22 is obliquely and rotatably disposed at the bottom of the moving plate 20, and a bottom of the second push-pull plate 22 is rotatably mounted at the bottom of the inner wall of the outer box 13.

Specifically, when the base plate 2 pushes the supporting plate 7 to move downwards, the supporting plate 7 and the second push-pull plate 22 move relatively, the second push-pull plate 22 pushes the right-angle template 8 to turn upwards through the limiting plate 17, the first plate spring 18, the guide plate 19, the moving plate 20 and the first push-pull plate 21 in the opposite direction, so that the right-angle template 8 pushes the blank to bend and deform to the outer side wall of the second extrusion die 5 and the bottom of the lower pressing plate 6, the U-shaped deformation work of the blank on the second extrusion die 5 and the lower pressing plate 6 is realized, when the right-angle template 8 rotates to be in a vertical state and is attached to the second extrusion die 5, the right-angle template 8 stops rotating, the supporting plate 7 continues to move downwards, the second push-pull plate 22 overcomes the elastic force of the first plate spring 18 and pushes the moving plate 20 to slide towards the direction of the right-angle template 8 on the guide plate 19, at this time, the moving plate 20 pushes the two arc-shaped templates 9 to turn over on the right-angle template 8 through the two first push plates 21, and the blank is extruded and deformed to the arc-shaped side wall of the second extrusion die 5.

By adopting the structure of the limiting plate 17, the first plate spring 18, the guide plate 19, the moving plate 20, the first push-pull plate 21 and the second push-pull plate 22, a sectional type movement mode can be realized, the power source of the sectional type movement mode is single movement of the supporting plate 7, the movement mode conversion mode is effectively improved, the function of converting simple movement into multidirectional movement is realized, and the blank is conveniently extruded and deformed in a matching manner.

When initial position of layer board 7 rebound, the lateral wall of right angle template 8 towards layer board 7 and the contact of fixed slot inside wall, second push-and-pull plate 22 carries on spacingly through right angle template 8 to layer board 7, spring 16 still produces upward elastic thrust to layer board 7 this moment, conveniently make layer board 7 keep the state of tautening, thereby when convenient blank on holding down plate 6 is to layer board 7 extrudees, layer board 7 position keeps fixed, when base plate 2 and layer board 7 contact, base plate 2 overcomes spring 16's elastic thrust and promotes layer board 7 and moves down.

As shown in fig. 7, as a preferred embodiment of the above embodiment, an arc-shaped guide rod 23 is fixed at the bottom of the turning template 10, a guide sleeve 24 is slidably arranged on the arc-shaped guide rod 23, a fixing plate 25 is fixed on the outer side wall of the guide sleeve 24, and the outer end of the fixing plate 25 is fixedly connected with the inner wall of the outer box 13.

Specifically, through setting up arc guide bar 23, uide bushing 24 and fixed plate 25, can conveniently lead to the moving direction of upset template 10, conveniently make upset template 10 overturn to vertical state by the horizontality to in the motion process of upset template 10, avoid upset template 10 and layer board 7 to bump, can conveniently make the upset template 10 of the vertical state in upset back be close to 2 lateral walls of base plate simultaneously.

As shown in fig. 6, as a preferred embodiment of the above embodiment, a slider 26 is slidably provided on a side wall of the push template 11, and a second leaf spring 27 is connected between the slider 26 and the push template 11.

Specifically, through setting up slider 26, can conveniently carry on spacingly to the sliding position of propulsion template 11 on upset template 10, second leaf spring 27 produces elastic thrust through slider 26 to upset template 10, thereby make and be in the state of tightening between propulsion template 11 and the upset template 10, upset template 10 this moment, propulsion template 11, can regard as a whole between slider 26 and the second leaf spring 27, promote propulsion template 11 to remove, thereby make upset template 10 remove, when upset template 10 overturns to vertical state and contacts with base plate 2 lateral wall, upset template 10 stops moving, impel template 11 to continue to remove and overcome the elastic thrust of second leaf spring 27 this moment, second leaf spring 27 takes place elastic deformation, thereby realize upset template 10 and the sectional type motion mode of propulsion template 11.

As shown in fig. 4, as a preferred embodiment of the above embodiment, a third push-pull plate 28 is disposed on the sidewall of the supporting plate 7 in an inclined and rotatable manner, an outer end of the third push-pull plate 28 is fixed with a turning shaft 29, an inner sidewall of the outer box 13 is horizontally provided with a sliding slot 30, an outer end of the turning shaft 29 is slidably mounted in the sliding slot 30, two fourth push-pull plates 31 are fixedly inclined on the turning shaft 29, an outer end of each fourth push-pull plate 31 is provided with a fifth push-pull plate 32 in an inclined and rotatable manner, and an outer end of the fifth push-pull plate 32 is rotatably mounted at the bottom of the pushing template 11.

Specifically, when the supporting plate 7 moves downwards, the supporting plate 7 pushes the turnover shaft 29 to turn over through the third push-pull plate 28, the third push-pull plate 28 pushes the turnover shaft 29 to slide in the sliding groove 30, the turnover shaft 29 turns over and pushes the pushing template 11 to move upwards through the fourth push-pull plate 31 and the fifth push-pull plate 32, and therefore power is provided for the turning template 10, the pushing template 11 and the third extrusion die 12, multidirectional power transmission work is achieved, structural complexity of setting multiple power sources is avoided, the operation mode is simplified, the synchronism of equipment operation is improved, and equipment maintenance and debugging are facilitated.

When the supporting plate 7 moves downwards, the third push-pull plate 28 pushes the turnover shaft 29 to move horizontally outwards firstly, and then the turnover shaft moves horizontally to the initial position, so that the propelling strokes of the turnover template 10 and the propelling template 11 are increased, and the situation that the third extrusion die 12 cannot be contacted with the first extrusion die 3 when the strokes are insufficient is avoided.

As shown in fig. 5, the above embodiment preferably further includes a guide reinforcing plate 33, the guide reinforcing plate 33 is fixed to the bottom of the inner wall of the outer box 13, and the top of the guide reinforcing plate 33 is slidably inserted into the support plate 7.

Specifically, through setting up direction reinforcing plate 33, can conveniently lead to layer board 7, improve the stationarity when layer board 7 removes, avoid layer board 7 to take place to incline because of the atress is uneven.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The high-precision stamping die structure applied to the metal terminal machining process is characterized by comprising an upper die assembly and a lower die assembly;

the upper die assembly comprises a stamping oil cylinder (1) and a base plate (2) arranged at a movable end of the bottom of the stamping oil cylinder (1), wherein first extrusion dies (3) are arranged on the left side wall and the right side wall of the base plate (2), a connecting frame (4) is arranged at the bottom of the base plate (2), second extrusion dies (5) are arranged on the left side and the right side of the bottom of the connecting frame (4), lower pressing plates (6) are arranged at the bottom of the second extrusion dies (5), and the two lower pressing plates (6) are located between the two second extrusion dies (5);

the lower die assembly comprises a supporting plate (7), right-angle templates (8) are rotatably arranged on the left side wall and the right side wall of the supporting plate (7), arc-shaped templates (9) are rotatably arranged on the front side wall and the rear side wall of the right-angle templates (8), a turnover template (10) is arranged on the rear side wall of the supporting plate (7) in a contact manner, pushing templates (11) are vertically and slidably arranged on the left side wall and the right side wall of the turnover template (10), and third extrusion dies (12) are arranged on the outer side walls of the pushing templates (11);

the connecting frame (4) is arranged at a position close to the side wall of the substrate (2), and the connecting frame (4) is staggered with the position of the first extrusion die (3), so that a gap is formed between the two second extrusion dies (5);

still include outer box (13), outer box (13) are located the outside of lower mould subassembly, be fixed with slide cartridge (14) on the lateral wall of layer board (7), the lateral wall slidable mounting of slide cartridge (14) is on outer box (13) inner wall, it is provided with slide bar (15) to slide in slide cartridge (14), slide bar (15) bottom is fixed in outer box (13) inner wall bottom, the cover is equipped with spring (16) on slide bar (15), spring (16) bottom is connected with outer box (13), spring (16) top is connected with slide cartridge (14).

2. The high-precision stamping die structure applied to the metal terminal machining process according to claim 1, wherein a plurality of limiting plates (17) are arranged at the bottom of the right-angle die plate (8), the outer ends of the limiting plates (17) are in contact with the outer wall of the arc-shaped die plate (9), and a first plate spring (18) is connected between the limiting plates (17) and the arc-shaped die plate (9).

3. The high-precision stamping die structure applied to the metal terminal processing technology of claim 2, wherein a plurality of guide plates (19) are fixed at the bottom of the right-angle template (8), a moving plate (20) is slidably arranged on the plurality of guide plates (19), the moving plate (20) is horizontal, a first push-pull plate (21) is obliquely and rotatably arranged at each of two ends of the moving plate (20), the outer end of the first push-pull plate (21) is rotatably arranged on the outer wall of the arc-shaped template (9), a second push-pull plate (22) is obliquely and rotatably arranged at the bottom of the moving plate (20), and the bottom of the second push-pull plate (22) is rotatably arranged at the bottom of the inner wall of the outer box (13).

4. The high-precision stamping die structure applied to the metal terminal machining process according to claim 3, wherein an arc-shaped guide rod (23) is fixed at the bottom of the turnover template (10), a guide sleeve (24) is slidably arranged on the arc-shaped guide rod (23), a fixing plate (25) is fixed on the outer side wall of the guide sleeve (24), and the outer end of the fixing plate (25) is fixedly connected with the inner wall of the outer box body (13).

5. The high-precision stamping die structure applied to the metal terminal processing technology according to claim 4, wherein a slide block (26) is slidably arranged on the side wall of the pushing template (11), and a second plate spring (27) is connected between the slide block (26) and the pushing template (11).

6. The high-precision stamping die structure applied to the metal terminal machining process according to claim 5, wherein a third push-pull plate (28) is obliquely and rotatably arranged on the side wall of the supporting plate (7), a turning shaft (29) is fixed at the outer end of the third push-pull plate (28), a sliding groove (30) is horizontally formed in the inner side wall of the outer box body (13), the outer end of the turning shaft (29) is slidably arranged in the sliding groove (30), two fourth push-pull plates (31) are obliquely and fixedly arranged on the turning shaft (29), a fifth push-pull plate (32) is obliquely and rotatably arranged at the outer end of the fourth push-pull plate (31), and the outer end of the fifth push-pull plate (32) is rotatably arranged at the bottom of the pushing template (11).

7. The structure of the high precision stamping die applied to the metal terminal processing technology as claimed in claim 6, further comprising a guide reinforcing plate (33), wherein the guide reinforcing plate (33) is fixed at the bottom of the inner wall of the outer box body (13), and the top of the guide reinforcing plate (33) is slidably inserted into the supporting plate (7).