CN219985996U - Spring lock accessory stamping die - Google Patents

Abstract

The utility model relates to a snap lock accessory stamping die, which relates to the field of die equipment, and comprises an upper die holder and a lower die holder, wherein the upper die holder and the lower die holder are aligned relatively and do opening and closing movements with each other, an upper primary forming part, an upper punching part and an upper bending part are sequentially arranged on the lower surface of the upper die holder along the advancing direction of a plate, and a lower primary forming part, a lower punching part and a lower bending part are sequentially arranged on the upper surface of the lower die holder along the advancing direction of the plate; the upper primary forming piece and the lower primary forming piece are matched together to form a concave part of a plate, the upper punching piece and the lower punching piece are matched together to form a positioning hole of the concave part, and the upper bending piece and the lower bending piece are matched together to form a bending part of the plate. According to the utility model, single punching is changed into continuous punching, and the processing and forming of the snap lock fittings can be realized only by one set of die, so that the production efficiency of the snap lock fittings is improved, meanwhile, the number of occupied punches and workers in the processing and manufacturing process of the snap lock fittings is reduced, and the manual output cost is further reduced.

Description

Spring lock accessory stamping die

Technical Field

The utility model relates to the field of die equipment, in particular to a snap lock fitting stamping die.

Background

With the development of die technology and materials, more and more parts are produced by stamping dies, and some plate-shaped parts are usually obtained by a cold stamping method, wherein the stamping dies are special technological equipment for processing materials into parts in cold stamping; stamping is a process in which a material is subjected to separation or plastic deformation at room temperature using a die mounted on a press, thereby obtaining a desired part.

Currently, a snap lock fitting is designed, referring to fig. 1 and 2, which includes two bending portions 19 and a horizontal portion 20, wherein the two bending portions 19 are connected through the horizontal portion 20, the middle portion of the horizontal portion 20 is sunk to form a concave portion 21, and a positioning hole 22 is formed in the middle portion of the concave portion 21.

In the prior art, in the production and manufacturing process of the snap lock fitting, the raw material of the plate needs to be cut firstly to be divided into the sizes meeting the requirements, then the plate is punched by adopting a single-punch die, namely a die in one procedure, and after each procedure is finished, the plate needs to be collected manually so that the plate can be subjected to the next procedure.

In the stamping process of the snap lock fitting, the concave part of the plate is required to be formed by using a concave part forming die, then a positioning hole is stamped by using a punching die, and after the stamping of the positioning hole is completed, the plate is subjected to bending treatment by using a bending die, so that two bending parts of the snap lock fitting are formed, and the production and the manufacture of the snap lock fitting are completed.

In the above process, when each die equipment is used, a special person is required to watch at the same time to ensure the quality of die processing, and simultaneously collect the workpiece after single punching, so that the workpiece is applied to the next process, thus the number of punches and workers occupied by the mode is large, the manual output cost is high, and meanwhile, the production efficiency is low.

Disclosure of Invention

In order to solve the problems that more punches and workers are needed to be occupied in the manufacturing process of the snap lock fittings, the manual output cost is high, and the production efficiency is low, the utility model provides a snap lock fitting stamping die.

The utility model provides a spring lock accessory stamping die which adopts the following technical scheme:

the stamping die for the snap lock fittings is suitable for stamping a plate out of the snap lock fittings and comprises an upper die holder and a lower die holder, wherein the upper die holder and the lower die holder are aligned relatively and perform opening and closing movements with each other, an upper primary forming part, an upper punching part and an upper bending part are sequentially arranged on the lower surface of the upper die holder along the advancing direction of the plate, and a lower primary forming part, a lower punching part and a lower bending part are sequentially arranged on the upper surface of the lower die holder along the advancing direction of the plate; the upper primary forming piece and the lower primary forming piece are matched with each other to form a concave part of a plate, the upper punching piece and the lower punching piece are matched with each other to form a positioning hole of the concave part, and the upper bending piece and the lower bending piece are matched with each other to form a bending part of the plate.

By adopting the technical scheme, when a workpiece is required to be molded, an operator installs an upper die holder and a lower die holder in the existing punching machine, the upper die holder is positioned above, the lower die holder is positioned below, then the plate is placed on the lower die holder, the plate advances along the directions of a lower primary molding piece, a lower punching piece and a lower bending piece, and simultaneously the upper primary molding piece, the upper punching piece and the upper bending piece are punched; the upper primary forming piece and the lower primary forming piece are matched together to form a concave part of the plate, the upper punching piece and the lower punching piece are matched together to form a positioning hole of the concave part, and the upper bending piece and the lower bending piece are matched together to form a bending part of the plate, so that integral stamping forming of the plate is completed, and a snap lock fitting is formed; through the arrangement, the stamping forming of the snap lock fittings can be realized only by one set of die, single stamping is changed into continuous stamping, the production efficiency of the snap lock fittings is improved, meanwhile, the number of occupied punches and workers in the processing and manufacturing process of the snap lock fittings is reduced, and the manual output cost is further reduced.

Optionally, the upper primary molding part comprises a primary molding press head arranged on the upper die holder; the lower primary molding part comprises a primary molding groove which is formed in the lower die holder, and the primary molding pressure head can be inserted into the primary molding groove.

Through adopting above-mentioned technical scheme, when the sheet metal is located the upper die base, upper die base and die holder compound die, the upper die base drives the preforming pressure head and removes, and the preforming pressure head removes to compress tightly the sheet metal with in the preforming groove, and the sheet metal is located the part in the preforming groove and forms the depressed part, accomplishes the shaping processing of depressed part from this.

Optionally, a platen is disposed on the upper die base, and when the primary molding press is inserted into the primary molding groove, the platen abuts the plate on the lower die base.

Through adopting above-mentioned technical scheme, improve the stability in the primary shaping pressure head stamping process, prevent that the sheet material on the die holder from because bear too big stamping force, lead to appearing the condition that the sheet material removed to lead to the deviation to appear in primary shaping pressure head stamping forming's depressed part, improve stamping process's precision.

Optionally, the upper punching piece comprises a punching press head arranged on the upper die holder; the lower punching part comprises a through hole formed in the lower die holder, and the punching press head can be inserted into the through hole.

Through adopting above-mentioned technical scheme, upper die base and die holder compound die, the upper die base drives the pressure head that punches a hole and removes, and the pressure head that punches a hole is removed and is pegged graft in the through-hole, accomplishes the shaping of locating hole, and the waste material that the while location Kong Yatou was punched drops from the through-hole.

Optionally, the upper bending piece comprises a bending upper die arranged on the upper die holder; the lower bending piece comprises a placing groove arranged on the lower die holder, a bending lower die is arranged in the placing groove, and the bending lower die is located right below the bending lower die.

By adopting the technical scheme, the upper die holder and the lower die holder are matched, the upper die holder is moved to drive the bending upper die to move, and when the bending upper die moves to compress the plate on the bending lower die, the bending forming of the plate is completed, so that the bending part of the plate is formed.

Optionally, a shaping press head is arranged on the upper die holder, the shaping press head is arranged between the upper punching part and the upper bending part, a shaping groove is formed in the lower die holder, and the shaping press head can be inserted into the shaping groove.

By adopting the technical scheme, when the plate is processed by the upper primary forming part and the upper punching part, and the concave part moves into the integral groove, the upper die holder and the lower die holder are assembled, the upper die holder moves to drive the shaping press head to move, the shaping press head presses the concave part of the plate again for shaping treatment, and the problem that part of the concave part is not punched in place during the punching treatment of the upper primary forming part, so that the qualification rate of the forming of the snap lock fitting is affected is avoided; meanwhile, burrs are generated when the punching press head is pressed down to perform punching processing after the concave part is formed, so that influences on snap lock fittings after the punching forming are finished are avoided.

Optionally, the upper die holder is provided with a trimming press head, the lower die holder is provided with a trimming hole, and the trimming press head can be inserted into the trimming hole.

Through adopting above-mentioned technical scheme, need not to carry out cutting treatment to the sheet material raw materials before punching press processing manual work to the shaping sheet material can directly carry out punching press processing with the sheet material raw materials, and the in-process that the upper die base removed drives the side cut pressure head and removes to inserting in the side cut hole, can carry out cutting treatment to the sheet material raw materials, further improves the production efficiency of spring lock accessory.

Optionally, the die holder is last to be provided with multiunit positioning seat, every group the positioning seat all includes two relative positioning seat that set up, two the constant head tank has all been seted up on the positioning seat, and the both sides of sheet material are located two respectively in the constant head tank and respectively with two the positioning seat is connected.

Through adopting above-mentioned technical scheme, play the guide effect through the positioning seat to the sheet material in the punching press processing procedure, prevent that the sheet material from moving when carrying out punching press processing, lead to the punching press process to appear the error, improve punching press processing's precision from this.

Optionally, a limiting rod is arranged on the upper die holder, a positioning hole is formed in the lower die holder, and the limiting rod is inserted into the positioning hole.

Through adopting above-mentioned technical scheme, upper die base and die holder separation and die closing in-process, the gag lever post is located the locating hole all the time, accuracy when improving the compound die from this, guarantee to go up punching part and punching part accurate cooperation down, go up the preformed piece and lower preformed piece accurate cooperation and go up bending part and lower bending part accurate cooperation, avoid because the deviation appears when the compound die and lead to the work piece after the machine-shaping to produce the deviation.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. when a workpiece needs to be molded, an operator installs an upper die holder and a lower die holder in an existing punching machine, the upper die holder is positioned above, the lower die holder is positioned below, then a plate is placed on the lower die holder, the plate advances along the directions of a lower primary molding piece, a lower punching piece and a lower bending piece, and simultaneously the upper primary molding piece, the upper punching piece and the upper bending piece are punched; the upper primary forming part and the lower primary forming part are matched together to form a concave part of a plate, the upper punching part and the lower punching part are matched together to form a positioning hole of the concave part, the upper bending part and the lower bending part are matched together to form a bending part of the plate, so that the integral stamping forming of the plate is completed, and the plate subjected to stamping treatment can be cut later, so that a single snap lock fitting is formed; through the arrangement, the stamping forming of the snap lock fittings can be realized by only one set of die, the single punch is changed into the continuous punch, the production efficiency of the snap lock fittings is improved, meanwhile, the number of occupied punches and workers in the processing and manufacturing process of the snap lock fittings is reduced, and the manual output cost is further reduced;

2. in the separation of the upper die base and the lower die base and the die assembly process, the limiting rod is always positioned in the positioning hole, so that the accuracy in die assembly is improved, the accurate matching of the upper punching part and the lower punching part, the accurate matching of the upper primary forming part and the lower primary forming part and the accurate matching of the upper bending part and the lower bending part are ensured, and the deviation of a workpiece after machining forming caused by the deviation in die assembly is avoided.

Drawings

FIG. 1 is a schematic view of a latch fitting according to an embodiment of the present utility model;

FIG. 2 is a schematic view of FIG. 1 at another angle;

FIG. 3 is a schematic view of a snap lock fitting stamping die according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the upper die holder of FIG. 3;

FIG. 5 is a schematic view of FIG. 4 at another angle;

FIG. 6 is a schematic view of the lower die holder of FIG. 3 with the sheet stock on the lower die holder;

FIG. 7 is a schematic view of the lower die holder of FIG. 3 with the sheet stock material not on the lower die holder;

fig. 8 is an enlarged view of a portion a in fig. 7.

Reference numerals illustrate: 1. an upper die holder; 2. a lower die holder; 3. a primary molding piece is arranged on the upper part; 31. a primary molding press head; 4. an upper punching part; 41. punching a press head; 5. an upper bending piece; 51. bending the upper die; 6. a lower preform; 61. a preliminary molding tank; 7. a lower punch; 71. a through hole; 8. a lower bending piece; 81. a placement groove; 82. bending the lower die; 9. shaping a pressure head; 10. a shaping groove; 11. trimming pressure heads; 12. cutting edge holes; 13. a flattening plate; 14. a positioning seat; 15. a positioning groove; 16. a limit rod; 17. a limiting hole; 18. a plate material; 19. a bending part; 20. a horizontal portion; 21. a recessed portion; 22. and positioning holes.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-8.

Referring to fig. 1 and 2, a conventional snap lock fitting comprises two bending parts 19 and a horizontal part 20, wherein the two bending parts 19 are connected through the horizontal part 20, the middle part of the horizontal part 20 is sunk to form a concave part 21, and a positioning hole 22 is formed in the middle of the concave part 21.

The embodiment of the utility model discloses a snap lock fitting stamping die which is suitable for stamping a plate material 18 out of a snap lock fitting. Referring to fig. 3, the snap-lock fitting stamping die comprises an upper die holder 1 and a lower die holder 2, wherein the upper die holder 1 and the lower die holder 2 are aligned relatively and perform opening and closing movements with each other; referring to fig. 4 and 5, the lower surface of the upper die holder 1 is provided with a preliminary forming press head 31, a punching press head 41, a shaping press head 9, a trimming press head 11 and a bending upper die 51 in order along the traveling direction of the plate material 18; referring to fig. 6 and 7, the upper surface of the lower die holder 2 is provided with a preliminary molding groove 61, a through hole 71, a shaping groove 10, a dicing hole, and a placement groove 81 in this order along the traveling direction of the sheet material raw material 18, and a bending lower die 82 is placed in the placement groove 81.

Referring to fig. 5 and 7, the preliminary molding press 31 is located directly above the preliminary molding groove 61 and can be inserted into the preliminary molding groove 61, when the upper die holder 1 and the lower die holder 2 are closed, the upper die holder 1 drives the preliminary molding press 31 to move, the preliminary molding press 31 moves to press the sheet material 18 into the preliminary molding groove 61, and the portion of the sheet material 18 located in the preliminary molding groove 61 forms the recess 21, thereby completing the molding process of the recess 21.

Referring to fig. 5 and 7, the punching press 41 is located directly above the through hole 71 and can be inserted into the through hole 71, when the sheet material 18 after the preliminary forming treatment moves to the punching press 41, so that the middle part of the recess 21 is located directly below the punching press 41, the upper die holder 1 and the lower die holder 2 are clamped, the upper die holder 1 drives the punching press 41 to move, and when the punching press 41 moves to be inserted into the through hole 71, the forming of the positioning hole 22 is completed, and at the same time, the waste punched by the punching press 41 falls from the through hole 71.

Referring to fig. 5 and 7, the shaping press head 9 is located right above the shaping groove 10 and can be inserted into the shaping groove 10, the shaping groove 10 is consistent with the primary shaping groove 61 in shape and size, when the punched plate material 18 moves below the shaping press head 9, the shaped concave part 21 moves into the shaping groove 10, the upper die holder 1 and the lower die holder 2 are clamped, the upper die holder 1 moves to drive the shaping press head 9 to move, the shaping press head 9 presses down the concave part 21 of the plate material 18 again to perform shaping treatment, and the problem that when the primary shaping press head 31 performs stamping treatment, part of the concave part 21 is not punched in place, so that the qualification rate of the spring lock fitting shaping is affected is avoided; and meanwhile, burrs are prevented from being generated when the punching press head 41 is pressed down to perform punching processing after the concave part 21 is formed, so that influences on snap lock fittings after the punching forming is finished are influenced.

Referring to fig. 5 and 7, the trimming press head 11 is located right above the trimming hole 12 and can be inserted into the trimming hole 12, when the sheet material 18 after the shaping treatment moves to below the trimming press head 11, the upper die holder 1 and the lower die holder 2 are closed, the movement of the upper die holder 1 drives the trimming press head 11 to move, and when the trimming press head 11 moves to be inserted into the trimming hole 12, the sheet material 18 is subjected to cutting treatment, so that a single snap-lock fitting blank is formed, and therefore, the production efficiency of the snap-lock fitting can be improved, and the manual cutting treatment is not required before or after the punching treatment.

Referring to fig. 5 and 7, the bending upper die 51 is located right above the bending lower die 82 and can be inserted into the placement groove 81, when the plate material 18 is subjected to trimming treatment, after a single snap lock fitting blank is formed, the snap lock fitting blank is located on the bending lower die 82, at this time, the upper die holder 1 and the lower die holder 2 are clamped, the movement of the upper die holder 1 drives the movement of the bending upper die 51, and when the bending upper die 51 moves to compress the plate material 18 on the bending lower die 82, the bending forming of the plate material 18 is completed, thereby forming the bending part 19 of the workpiece, and thus the production and the manufacture of the snap lock fitting are completed.

Referring to fig. 5, a platen 13 is provided on the upper die holder 1, and when the lower die holder 2 and the lower die holder 2 are closed, the platen 13 abuts the plate material 18 on the lower die holder 2; the plate material 18 on the lower die holder 2 is prevented from directly bearing excessive stamping force during stamping, so that the plate material moving condition occurs, and the deviation of the concave part 21 formed by stamping of the primary forming press head 31 and the positioning hole 22 formed by stamping of the punching press head 41 occurs, thereby improving the precision of stamping processing and the stability in the stamping process.

Referring to fig. 5 and 7, a limiting rod 16 is arranged on the upper die holder 1, a limiting hole 17 is formed on the lower die holder 2, and the limiting rod 16 is inserted into the limiting hole 17; in the separation and die assembly process of the upper die holder 1 and the lower die holder 2, the limiting rod 16 is always positioned in the limiting hole 17, so that the accuracy in die assembly is improved, the accurate matching of the punching press head 41 and the through hole 71, the accurate matching of the primary forming press head 31 and the primary forming groove 61, the accurate matching of the trimming press head 11 and the trimming hole 12, the accurate matching of the shaping press head 9 and the shaping groove 10 and the accurate matching of the bending upper die 51 and the bending lower die 82 are ensured, and the deviation of a workpiece after processing and forming caused by deviation in die assembly is avoided.

Referring to fig. 7 and 8, a plurality of sets of positioning seats 14 are provided on the lower die holder 2, each set of positioning seats 14 includes two positioning seats 14 which are oppositely provided, positioning grooves 15 are provided on the two positioning seats 14, and two sides of a plate material 18 are respectively located in the two positioning grooves 15 and are respectively contacted with the two positioning seats 14; the positioning seat 14 plays a role in guiding the plate raw material 18 in the stamping process, so that the plate raw material 18 is prevented from moving during the stamping process, and errors occur in the stamping process, and the precision of the stamping process is improved.

The implementation principle of the stamping die for the snap lock fitting provided by the embodiment of the utility model is as follows: when a workpiece needs to be molded, an operator installs an upper die holder 1 and a lower die holder 2 in an existing punching machine, the upper die holder 1 is positioned above, the lower die holder 2 is positioned below, then a plate material 18 is placed on the lower die holder 2, the plate material 18 advances along the directions of a preliminary molding groove 61, a through hole 71, a shaping groove 10, a trimming hole 12 and a placing groove 81, and simultaneously, a preliminary molding press 31, a punching press 41, a shaping press 9, a trimming press 11 and a bending upper die 51 are punched; the primary forming press head 31 and the primary forming groove 61 are matched together to form the concave part 21 of the plate material 18; the punching press 41 and the through hole 71 cooperate together to punch the positioning hole 22 of the recess 21; the shaping press head 9 and the shaping groove 10 are matched together to carry out shaping treatment on the plate raw material 18; the trimming press head 11 and the trimming hole 12 are matched together to perform cutting treatment on the plate raw material 18, so that a single snap lock fitting blank is formed; the upper bending piece 5 and the lower bending piece 8 are matched together to form a bending part 19 of a snap lock fitting blank, so that the stamping forming of the snap lock fitting is completed; through the arrangement, the stamping forming of the snap lock fittings can be realized only by one set of die, single stamping is changed into continuous stamping, the production efficiency of the snap lock fittings is improved, meanwhile, the number of occupied punches and workers in the processing and manufacturing process of the snap lock fittings is reduced, and the manual output cost is further reduced.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (9)

1. The utility model provides a snap lock accessory stamping die, is applicable to punching out the snap lock accessory with the sheet material, its characterized in that: the die comprises an upper die holder (1) and a lower die holder (2), wherein the upper die holder (1) and the lower die holder (2) are aligned relatively and perform opening and closing movements, an upper primary forming piece (3), an upper punching piece (4) and an upper bending piece (5) are sequentially arranged on the lower surface of the upper die holder (1) along the advancing direction of a plate, and a lower primary forming piece (6), a lower punching piece (7) and a lower bending piece (8) are sequentially arranged on the upper surface of the lower die holder (2) along the advancing direction of the plate; the upper primary forming part (3) and the lower primary forming part (6) are matched with each other to form a concave part (21) of a plate, the upper punching part (4) and the lower punching part (7) are matched with each other to form a positioning hole (22) of the concave part (21), and the upper bending part (5) and the lower bending part (8) are matched with each other to form a bending part (19) of the plate.

2. A snap lock fitting stamping die as defined in claim 1, wherein: the upper preliminary molding part (3) comprises a preliminary molding press head (31) arranged on the upper die holder (1); the lower preliminary molding part (6) comprises a preliminary molding groove (61) formed in the lower die holder (2), and the preliminary molding press head (31) can be inserted into the preliminary molding groove (61).

3. A snap lock fitting stamping die as claimed in claim 2, wherein: the upper die holder (1) is provided with a pressing plate (13), and when the primary forming press head (31) is inserted into the primary forming groove (61), the pressing plate (13) abuts against the plate material on the lower die holder (2).

4. A snap lock fitting stamping die as defined in claim 1, wherein: the upper punching part (4) comprises a punching press head (41) arranged on the upper die holder (1); the lower punching part (7) comprises a through hole (71) formed in the lower die holder (2), and the punching press head (41) can be inserted into the through hole (71).

5. A snap lock fitting stamping die as defined in claim 1, wherein: the upper bending piece (5) comprises a bending upper die (51) arranged on the upper die holder (1); the lower bending piece (8) comprises a placing groove (81) which is formed in the lower die holder (2), a bending lower die (82) is arranged in the placing groove (81), and the bending lower die (82) is located under the bending lower die (82).

6. A snap lock fitting stamping die as defined in claim 1, wherein: the shaping press head (9) is arranged on the upper die holder (1), the shaping press head (9) is arranged between the upper punching part (4) and the upper bending part (5), a shaping groove (10) is formed in the lower die holder (2), and the shaping press head (9) can be inserted into the shaping groove (10).

7. A snap lock fitting stamping die as defined in claim 1, wherein: the die comprises an upper die holder (1), and is characterized in that a trimming press head (11) is arranged on the upper die holder (1), a trimming hole (12) is formed in the lower die holder (2), and the trimming press head (11) can be inserted into the trimming hole (12).

8. A snap lock fitting stamping die as defined in claim 1, wherein: the die comprises a die holder (2), and is characterized in that a plurality of groups of positioning seats (14) are arranged on the die holder (2), each group of positioning seats (14) comprises two positioning seats (14) which are oppositely arranged, positioning grooves (15) are formed in the positioning seats (14), and two sides of a plate are respectively located in the two positioning grooves (15) and are respectively connected with the two positioning seats (14).

9. A snap lock fitting stamping die as defined in claim 1, wherein: the upper die holder (1) is provided with a limiting rod (16), the lower die holder (2) is provided with a limiting hole (17), and the limiting rod (16) is inserted into the limiting hole (17).