Die adjusting device of hardware stamping die

Abstract

The utility model provides a die adjusting device of a hardware stamping die, which relates to the technical field of stamping dies, and comprises four stand columns, a lower die plate and an upper die plate, the surfaces of the upper and lower ends of the four stand columns are fixedly provided with fixing plates, the surfaces of the four stand columns are fitted and sleeved with stamping plates, the stamping plates are positioned between the two fixing plates, and the upper die plate is fixed on the lower die plate. Four buffer springs are fixedly installed between the stamping plate and the fixing plate at the bottom end, clamping assemblies are arranged on the top surface of the other fixing plate and the bottom surface of the stamping plate, and a limiting assembly is arranged on the top surface of the other fixing plate. According to the hardware stamping die, the upper die plate and the lower die plate are clamped and fixed through the U-shaped clamping plates, the upper die plate and the lower die plate are limited front and back through the two limiting rods and the baffle, bolt fixing is avoided, the upper die plate and the lower die plate of the corresponding model can be rapidly replaced, the hardware stamping die can adapt to dies of different models, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a die adjusting device for a hardware stamping die. Background Art

[0002] Metal stamping dies are machines used to stamp sheet metal parts. They are specialized equipment used in the cold stamping process to transform materials (metal or non-metal) into parts (or semi-finished products). Stamping, commonly known as cold stamping dies, is a pressure-forming process at room temperature that uses a die mounted on a press to apply pressure to the material, causing it to separate or plastically deform, thereby producing the desired part. This process offers advantages such as high production efficiency and short production cycles.

[0003] However, in the prior art, when a metal stamping die is used to punch holes on the surface of some steel plates or iron plates, the template of the metal stamping die is mostly fixed to the surface of the stamping plate by bolts. When the template needs to be replaced to punch steel plates or iron plates of different sizes and types, multiple bolts need to be unscrewed and reinstalled, which is cumbersome and troublesome. As a result, the metal stamping template cannot adapt to different types of molds and has low practicality. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mold adjustment device for a hardware stamping mold, comprising: four columns, a lower template and an upper template, the upper and lower end surfaces of the four columns are fixedly installed with fixed plates, the surfaces of the four columns are fitted with stamping plates, the stamping plates are located between the two fixed plates, four buffer springs are fixedly installed between the stamping plates and the fixed plates at the bottom ends, the four columns are correspondingly located on the inner sides of the four buffer springs, a stamping cylinder is fixedly installed on the top surface of one of the fixed plates, the output end of the stamping cylinder movably passes through the top surface of the fixed plate and is fixedly connected to the top surface of the stamping plate, the top surface of the other fixed plate and the bottom surface of the stamping plate are both provided with a clamping assembly, the top surface of the other fixed plate is provided with a limiting assembly, the two clamping assemblies include two U-shaped plates, the two U-shaped plates are respectively fixedly installed on the top surface of the other fixed plate and the bottom surface of the stamping plate, and a baffle is fixedly installed on one side surface of the two U-shaped plates.

[0006] As a preferred embodiment, two bidirectional threaded rods are connected between the inner walls at both ends of the two U-shaped plates through bearings, one end of the two bidirectional threaded rods is movable through the inner wall surface of one side of the two U-shaped plates, and one end of the two bidirectional threaded rods is fixedly installed with a nut.

[0007] As a preferred embodiment, a cross bar is fixedly installed between the inner walls at both ends of the two U-shaped plates, and two T-shaped plates are fitted on the surfaces of the two cross bars. The four T-shaped plates are grouped into two, and one end of each group of T-shaped plates is threadedly sleeved on the surfaces of the two bidirectional threaded rods.

[0008] As a preferred embodiment, the top surfaces of the two U-shaped plates are provided with through grooves, the top ends of the two T-shaped plates are movable through the two through grooves, the two side surfaces of the top ends of the two T-shaped plates are fitted with the two side inner wall surfaces of the two through grooves, the top surfaces of the two T-shaped plates are fixedly installed with U-shaped clamping plates, the two side surfaces of the lower template and the upper template are fixedly installed with extension plates, the multiple extension plates are correspondingly located inside the multiple U-shaped clamping plates, the outer wall surfaces of the multiple extension plates are correspondingly fitted with the inner wall surfaces of the multiple U-shaped clamping plates, and one end of one side surface of the multiple extension plates is provided with a limiting hole.

[0009] As a preferred embodiment, a plurality of support rods are fixedly installed on one side surface of the U-shaped clamping plates, a plurality of surfaces of the support rods are fitted with slides in a movable sleeve, a plurality of limit rods are fixedly installed on one side surface of the slides, a plurality of limit rods are correspondingly located inside a plurality of limit holes, a plurality of limit circular plates are fixedly installed on one end surface of the support rods, a plurality of outer wall surfaces of the support rods are fitted with rings in a movable sleeve, a plurality of the rings are correspondingly located on the outside of a plurality of slides, a plurality of limit springs are fixedly installed between the rings and the plurality of limit circular plates, and a plurality of support rods are correspondingly located on the inside of a plurality of limit springs.

[0010] As a preferred embodiment, the limiting assembly includes two long grooves, the two long grooves are opened on one side of the top surface of another fixed plate, long rods are fixedly installed between the inner walls at both ends of the two long grooves, the surfaces of the two long rods are fitted with movable plates, and racks are fixedly installed on one side surface of the two movable plates.

[0011] As a preferred embodiment, an L-shaped support plate is fixedly installed on the top surface of the other fixed plate, and a rotating shaft is connected between the top inner wall surface of the L-shaped support plate and the top surface of the other fixed plate through a bearing. A forward and reverse motor is fixedly installed on the top surface of the L-shaped support plate, and the output end of the forward and reverse motor movably passes through the top surface of the L-shaped support plate and is fixedly connected to the rotating shaft. A gear is fixedly sleeved on the outer wall surface of the rotating shaft, and the gear and two racks are engaged with each other.

[0012] As a preferred embodiment, a connecting rod is fixedly installed on one end of the top surface of the two movable plates, a limiting plate is fixedly installed on the other end of the two connecting rods, a plurality of protective strips are fixedly installed on one side surface of the two limiting plates, an L-shaped connecting plate is fixedly installed on the other end of the two limiting plates, a T-slot is provided on the other side of the top surface of the other fixed plate, and one end of the two L-shaped connecting plates slides correspondingly inside the two T-slots.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] When the two U-shaped plates are positioned outside the two U-shaped clamping plates, the two slides can be loosened. The nut can then be turned with a wrench, and the rotation of the nut drives the two bidirectional threaded rods to rotate. Since the two T-shaped plates slide through the bidirectional threaded rods and the cross bar, the rotation of the bidirectional threaded rods drives the two T-shaped plates to move in opposite directions on the surface of the cross bar, thereby causing the top ends of the two T-shaped plates to move in opposite directions inside the through slots. The movement of the two T-plates in opposite directions drives the two U-shaped clamping plates to move in opposite directions. When the nut cannot be rotated, the two slides are then rotated in the opposite direction. When the two limit rods are facing the two limit holes, the two slides are loosened. The two limit rods are reinserted into the corresponding limit holes by the rebound force of the two limit springs, and the lower template is restricted to move forward and backward by the baffle. Then, the upper template is replaced by the same operation. Through the cooperation of the above structure, the upper template and the lower template are clamped and fixed by multiple U-shaped clamping plates. The upper template and the lower template are limited front and back by two limit rods and baffles, avoiding the use of bolts. When different models of molds need to be replaced, the upper template and the lower template of the corresponding model can be quickly replaced, so that the metal stamping mold can adapt to different models of molds, and the practicality will be strong.

[0015] 2. The utility model, when it is necessary to prevent some small hardware parts, steel plates or iron plates from moving during stamping, first the steel plate or iron plate to be stamped is placed on the top surface of the lower template, and then the forward and reverse motors are operated. The operation of the forward and reverse motors drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the gear to rotate. The rotation of the gear and the two racks are engaged with each other, so that the two movable plates move in opposite directions on the surfaces of the tops of the two long rods. The two movable plates move in opposite directions to each other, driving the two connecting rods to move in opposite directions. Since the two limit plates are supported by the two connecting rods and the two L-shaped connecting plates, the two limit plates move in opposite directions to each other. When the two limit plates cooperate with the multiple protective strips on their surfaces to clamp and limit the two side surfaces of the steel plate or iron plate, the forward and reverse motors are stopped, and then the steel plate or iron plate can be stamped by operating the stamping cylinder. Through the cooperation of the above structure, the steel plate or iron plate can be limited to the surface of the lower template during stamping, avoiding displacement of the steel plate or iron plate during stamping, which causes the steel plate or iron plate to be scrapped. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a die adjustment device for a metal stamping die provided by the utility model;

[0017] Figure 2 This is a structural diagram of a fixing plate of a die adjustment device for a metal stamping die provided by the utility model;

[0018] Figure 3 This is a partial structural diagram of a fixing assembly of a die adjustment device for a metal stamping die provided by the utility model;

[0019] Figure 4 A mold adjustment device for a metal stamping mold provided by the utility model Figure 3 Schematic diagram of part of the structure;

[0020] Figure 5 A mold adjustment device for a metal stamping mold provided by the utility model Figure 3 A schematic diagram of the reverse side structure viewed from above;

[0021] Figure 6 A schematic structural diagram of a stamping plate of a die adjustment device for a metal stamping die provided by the utility model;

[0022] Figure 7 This is a structural diagram of a lower template of a die adjustment device for a metal stamping die provided by the utility model;

[0023] Figure 8 This is a structural schematic diagram of an upper template of a die adjustment device for a metal stamping die provided by the utility model;

[0024] Figure 9 The utility model provides a die adjusting device of hardware stamping die Figure 2 Partial structure schematic view of

[0025] Figure 10 The utility model provides a die adjusting device of hardware stamping die Figure 3 Structure schematic view of A in

[0026] Figure 11 The utility model provides a die adjusting device of hardware stamping die Figure 9 Structure schematic view of B in

[0027] Legend:

[0028] 1, stand; 2, fixed plate; 3, stamping plate; 4, buffer spring; 5, stamping cylinder; 6, lower die plate; 7, upper die plate; 8, clamping assembly; 801, U-shaped plate; 802, bidirectional screw rod; 803, nut; 804, cross bar; 805, T-shaped plate; 806, through slot; 807, U-shaped clamping plate; 808, baffle; 809, extension plate; 810, support rod; 811, sliding plate; 812, limiting rod; 813, limiting hole; 814, limiting round plate; 815, circular ring; 816, limiting spring; 9, limiting assembly; 901, long slot; 902, long rod; 903, movable plate; 904, rack; 905, L-shaped support plate; 906, rotating shaft; 907, positive and negative motor; 908, gear; 909, connecting rod; 910, limiting plate; 911, T-shaped slot; 912, L-shaped connecting plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0030] Please refer to Figures 1-11The utility model provides a technical solution: a mold adjustment device for a metal stamping mold, comprising: four columns 1, a lower template 6 and an upper template 7, the upper and lower surfaces of the four columns 1 are fixedly mounted with fixed plates 2, the surfaces of the four columns 1 are fitted with a stamping plate 3, the stamping plate 3 is located between the two fixed plates 2, four buffer springs 4 are fixedly mounted between the stamping plate 3 and the bottom fixed plate 2, the four columns 1 are correspondingly located on the inner side of the four buffer springs 4, and a stamping air spring is fixedly mounted on the top surface of one of the fixed plates 2. Cylinder 5, the output end of the stamping cylinder 5 movably passes through the top surface of the fixed plate 2 and is fixedly connected to the top surface of the stamping plate 3, the top surface of the other fixed plate 2 and the bottom surface of the stamping plate 3 are each provided with a clamping assembly 8, the top surface of the other fixed plate 2 is provided with a limiting assembly 9, the two clamping assemblies 8 include two U-shaped plates 801, the two U-shaped plates 801 are respectively fixedly mounted on the top surface of the other fixed plate 2 and the bottom surface of the stamping plate 3, and a baffle 808 is fixedly mounted on one side surface of the two U-shaped plates 801.

[0031] Specifically: a plurality of through holes are provided on the surface of the fixed plate 2 at the lower end, and the metal stamping die can be fixedly mounted on the surface of the processing table through the plurality of through holes. The stamping cylinder 5 drives the stamping plate 3 to move, and the baffle 808 ensures that the lower template 6 and the upper template 7 are quickly placed.

[0032] In one embodiment, a bidirectional threaded rod 802 is connected between the inner walls of both ends of the two U-shaped plates 801 through bearings, and one end of the two bidirectional threaded rods 802 is movable through the inner wall surface of one side of the two U-shaped plates 801, and one end of the two bidirectional threaded rods 802 is fixedly installed with a nut 803.

[0033] Specifically, the nut 803 can be screwed by a wrench, thereby driving the bidirectional threaded rod 802 to rotate forward and backward.

[0034] In one embodiment, a cross bar 804 is fixedly installed between the inner walls at both ends of the two U-shaped plates 801, and two T-shaped plates 805 are fitted on the surfaces of the two cross bars 804. The four T-shaped plates 805 are grouped into two, and one end of each group of T-shaped plates 805 is threadedly mounted on the surfaces of the two bidirectional threaded rods 802.

[0035] Specifically, the T-shaped plates 805 slide through the bidirectional threaded rod 802 and the cross bar 804 , and the bidirectional threaded rod 802 drives the two T-shaped plates 805 to move in opposite directions on the surface of the cross bar 804 .

[0036] In one embodiment, the top surfaces of the two U-shaped plates 801 are each provided with a through groove 806, the top ends of the two T-shaped plates 805 are movable through the two through grooves 806, the two side surfaces of the top ends of the two T-shaped plates 805 are both in contact with the two side inner wall surfaces of the two through grooves 806, the top surfaces of the two T-shaped plates 805 are each fixedly installed with a U-shaped clamping plate 807, the two side surfaces of the lower template 6 and the upper template 7 are both fixedly installed with an extension plate 809, the multiple extension plates 809 are each correspondingly located inside the multiple U-shaped clamping plates 807, the outer wall surfaces of the multiple extension plates 809 are each correspondingly in contact with the inner wall surfaces of the multiple U-shaped clamping plates 807, and a limiting hole 813 is provided at one end of one side surface of the multiple extension plates 809.

[0037] Specifically: Multiple extension plates 809 are clamped and limited inside multiple U-shaped clamping plates 807, which play a role in limiting the movement of the upper template 7 and the lower template 6. The two side surfaces of the top of the two T-shaped plates 805 correspond to the inner wall surfaces of the two ends of the two through grooves 806, ensuring that the two T-shaped plates 805 can move stably.

[0038] In one embodiment, a support rod 810 is fixedly installed on one side surface of multiple U-shaped clamping plates 807, and a slide 811 is provided on the surface of multiple support rods 810 in a manner that fits the movable sleeve. A limiting rod 812 is fixedly installed on one side surface of multiple slides 811, and multiple limiting rods 812 are correspondingly located inside multiple limiting holes 813. A limiting circular plate 814 is fixedly installed on one end surface of multiple support rods 810, and a ring 815 is provided on the outer wall surface of multiple support rods 810 in a manner that fits the movable sleeve. Multiple rings 815 are correspondingly located on the outside of multiple slides 811. Limiting springs 816 are fixedly installed between multiple rings 815 and multiple limiting circular plates 814, and multiple support rods 810 are correspondingly located on the inside of multiple limiting springs 816.

[0039] Specifically, the setting of the limiting rod 812 and the limiting hole 813 plays a role in limiting the forward and backward movement of the upper template 7 and the lower template 6, and the limiting spring 816 plays a role in limiting the position of the slide plate 811 on the surface of the support rod 810.

[0040] In one embodiment, the limiting assembly 9 includes two long grooves 901, and the two long grooves 901 are opened on one side of the top surface of another fixed plate 2. Long rods 902 are fixedly installed between the inner walls at both ends of the two long grooves 901. The surfaces of the two long rods 902 are fitted with movable plates 903, and one side surface of the two movable plates 903 is fixedly installed with racks 904.

[0041] Specifically, the two side surfaces of the two movable plates 903 correspond to the inner wall surfaces at both ends of the two long grooves 901 to ensure that the movable plates 903 can slide stably on the surfaces of the two long rods 902 .

[0042] In one embodiment, an L-shaped support plate 905 is fixedly installed on the top surface of another fixed plate 2, and a rotating shaft 906 is connected between the top inner wall surface of the L-shaped support plate 905 and the top surface of the other fixed plate 2 through a bearing. A forward and reverse motor 907 is fixedly installed on the top surface of the L-shaped support plate 905, and the output end of the forward and reverse motor 907 movably passes through the top surface of the L-shaped support plate 905 and is fixedly connected to the rotating shaft 906. A gear 908 is fixedly sleeved on the outer wall surface of the rotating shaft 906, and the gear 908 and the two racks 904 are engaged with each other.

[0043] Specifically: the forward and reverse motor 907 is a forward and reverse motor, which drives the rotating shaft 906 to rotate forward and reverse. The gear 908 and the two racks 904 are engaged with each other. The racks 904 rotate to drive the two movable plates 903 to move in opposite directions. The movable plates 903 are set to have a certain length. When the two movable plates 903 move to the extreme ends of the two long slots 901, the gear 908 is always engaged with the two racks 904 to prevent the racks 904 from disengaging from the gear 908.

[0044] In one embodiment, a connecting rod 909 is fixedly installed at one end of the top surface of the two movable plates 903, and a limiting plate 910 is fixedly installed at the other end of the two connecting rods 909. A plurality of protective strips are fixedly installed on one side surface of the two limiting plates 910, and an L-shaped connecting plate 912 is fixedly installed at the other end of the two limiting plates 910. A T-slot 911 is provided on the other side of the top surface of the other fixed plate 2, and one end of the two L-shaped connecting plates 912 slides correspondingly inside the two T-slots 911.

[0045] Specifically, the two limiting plates 910 play the role of clamping and limiting the hardware parts, and the multiple anti-slip strips play the role of preventing the steel plate or iron plate from sliding.

[0046] Working principle: the hardware stamping die can be fixedly installed on the surface of the machining table through a plurality of through holes. When stamping and punching some small hardware part steel plates or iron plates, when it is necessary to replace different die stamping steel plates or iron plates, first pull two sliding plates 811, so that two sliding plates 811 slide on the surface of two supporting rods 810, the movement of two sliding plates 811 pushes two circular rings 815 to move, the movement of two circular rings 815 extrudes two limiting springs 816, so that two limiting springs 816 are stressed and compressed, at the same time, the movement of two sliding plates 811 drives two limiting rods 812 to move, the movement of two limiting rods 812 makes them move out of the inside of two limiting holes 813, so that two extension plates 809 lose limiting, at this time, rotate two sliding plates 811, when two limiting rods 812 are located outside two U-shaped clamping plates 807, loosen two sliding plates 811, then rotate nut 803 by wrench, the rotation of nut 803 drives two-way threaded rod 802 to rotate, since two T-shaped plates 805 slide through two-way threaded rod 802 and cross rod 804, the rotation of two-way threaded rod 802 drives two T-shaped plates 805 to move on the surface of cross rod 804 towards each other in opposite directions, so that the top ends of two T-shaped plates 805 move in the inside of through slot 806 towards each other in opposite directions, the movement of two T-shaped plates 805 towards each other in opposite directions drives two U-shaped clamping plates 807 to move towards each other in opposite directions, the movement of two U-shaped clamping plates 807 makes them disengage from two extension plates 809, so that lower die plate 6 loses limiting, at this time, pull out lower die plate 6 and replace lower die plate 6 of different models, when lower die plate 6 abuts against baffle plate 808, reverse rotate nut 803, so that two extension plates 809 are inserted into the inside of two U-shaped clamping plates 807 again, when nut 803 cannot be rotated, reverse rotate two sliding plates 811, when two limiting rods 812 are opposite two limiting holes 813, loosen two sliding plates 811, use the rebound force of two limiting springs 816 to make two limiting rods 812 be inserted into the inside of corresponding limiting holes 813 again, cooperate with baffle plate 808 to limit the forward and backward movement of lower die plate 6, then replace upper die plate 7 by the same operation, through the cooperation of the above structure, upper die plate 7 and lower die plate 6 are clamped and fixed by a plurality of U-shaped clamping plates 807, two limiting rods 812 and baffle plate 808 limit the forward and backward movement of upper die plate 7 and lower die plate 6, avoid using bolts, when it is necessary to replace dies of different models, upper die plate 7 and lower die plate 6 of corresponding models can be quickly replaced, so that the hardware stamping die can adapt to dies of different models, and the practicability is strong.When it is needed to prevent some small hardware parts steel plate, iron plate stamping when moving, first the steel plate or iron plate that needs stamping is placed on the top surface of the lower die plate 6, then the forward and reverse motor 907 is run, the forward and reverse motor 907 is run to drive the rotating shaft 906 to rotate, the rotating shaft 906 rotates to drive the gear 908 to rotate, the gear 908 rotates and the two racks 904 are meshed with each other, so that the two movable plates 903 on the top surface of the two long rods 902 move towards each other in opposite directions, the two movable plates 903 move towards each other in opposite directions to drive the two connecting rods 909 to move towards each other in opposite directions, since the two limiting plates 910 are supported by the two connecting rods 909 and the two L-shaped connecting plates 912, so that the two limiting plates 910 move towards each other in opposite directions, when the two limiting plates 910 cooperate with the surfaces of the plurality of protective strips to clamp and limit the two side surfaces of the steel plate or iron plate, the forward and reverse motor 907 is stopped at this time, then the steel plate or iron plate can be stamped by running the stamping cylinder 5, through the cooperation of the above structure, the steel plate or iron plate can be limited on the surface of the lower die plate 6 when stamping, avoiding displacement of the steel plate or iron plate during stamping, resulting in scrap of the steel plate or iron plate.

[0047] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the protection scope of the present application.

Claims

1. A die adjustment device for a metal stamping die, characterized in that: include: Four columns (1), a lower template (6) and an upper template (7), the upper and lower surfaces of the four columns (1) are fixedly mounted with fixed plates (2), the surfaces of the four columns (1) are fitted with a stamping plate (3), the stamping plate (3) is located between the two fixed plates (2), four buffer springs (4) are fixedly mounted between the stamping plate (3) and the bottom fixed plate (2), the four columns (1) are correspondingly located on the inner side of the four buffer springs (4), the top surface of one of the fixed plates (2) is fixedly mounted with a stamping cylinder (5), the output end of the stamping cylinder (5) The top surface of the fixed plate (2) is movable and fixedly connected to the top surface of the stamping plate (3); the top surface of the other fixed plate (2) and the bottom surface of the stamping plate (3) are both provided with a clamping assembly (8); the top surface of the other fixed plate (2) is provided with a limiting assembly (9); the two clamping assemblies (8) include two U-shaped plates (801); the two U-shaped plates (801) are respectively fixedly mounted on the top surface of the other fixed plate (2) and the bottom surface of the stamping plate (3); and a baffle (808) is fixedly mounted on one side surface of the two U-shaped plates (801).

2. The mold adjustment device for a metal stamping mold according to claim 1, characterized in that: A bidirectional threaded rod (802) is connected between the inner walls at both ends of the two U-shaped plates (801) via a bearing, one end of the two bidirectional threaded rods (802) is movably passed through the inner wall surface of one side of the two U-shaped plates (801), and one end of the two bidirectional threaded rods (802) is fixedly installed with a nut (803).

3. The mold adjustment device for a metal stamping mold according to claim 1, characterized in that: A cross bar (804) is fixedly installed between the inner walls of both ends of the two U-shaped plates (801), and two T-shaped plates (805) are fitted on the surfaces of the two cross bars (804). The four T-shaped plates (805) are grouped in pairs, and one end of each group of T-shaped plates (805) is threadedly sleeved on the surfaces of the two bidirectional threaded rods (802).

4. The mold adjustment device for a metal stamping mold according to claim 3, characterized in that: The top surfaces of the two U-shaped plates (801) are both provided with through grooves (806), the top ends of the two T-shaped plates (805) are both movable through the two through grooves (806), the two side surfaces of the top ends of the two T-shaped plates (805) are both fitted with the two side inner wall surfaces of the two through grooves (806), the top surfaces of the two T-shaped plates (805) are both fixedly installed with U-shaped clamping plates (807), the two side surfaces of the lower template (6) and the upper template (7) are both fixedly installed with extension plates (809), the multiple extension plates (809) are correspondingly located inside the multiple U-shaped clamping plates (807), the outer wall surfaces of the multiple extension plates (809) are correspondingly fitted with the inner wall surfaces of the multiple U-shaped clamping plates (807), and one end of one side surface of the multiple extension plates (809) is provided with a limiting hole (813).

5. The die adjustment device for a metal stamping die according to claim 4, characterized in that: A support rod (810) is fixedly installed on one side surface of the plurality of U-shaped clamping plates (807), a slide plate (811) is provided on the surface of the plurality of support rods (810) in contact with the movable sleeve, a limiting rod (812) is fixedly installed on one side surface of the plurality of slide plates (811), the limiting rods (812) are correspondingly located inside the plurality of limiting holes (813), a limiting circular plate (814) is fixedly installed on one end surface of the plurality of support rods (810), a circular ring (815) is provided on the outer wall surface of the plurality of support rods (810) in contact with the movable sleeve, the circular rings (815) are correspondingly located outside the plurality of slide plates (811), a limiting spring (816) is fixedly installed between the circular rings (815) and the plurality of limiting circular plates (814), and the plurality of support rods (810) are correspondingly located inside the plurality of limiting springs (816).

6. The die adjustment device for a metal stamping die according to claim 1, characterized in that: The limiting assembly (9) includes two long slots (901), the two long slots (901) are opened on one side of the top surface of another fixed plate (2), a long rod (902) is fixedly installed between the inner walls at both ends of the two long slots (901), a movable plate (903) is fitted on the surface of the two long rods (902), and a rack (904) is fixedly installed on one side surface of the two movable plates (903).

7. The die adjustment device for a metal stamping die according to claim 1, characterized in that: An L-shaped support plate (905) is fixedly mounted on the top surface of the other fixed plate (2); a rotating shaft (906) is connected between the top inner wall surface of the L-shaped support plate (905) and the top surface of the other fixed plate (2) via a bearing; a forward and reverse motor (907) is fixedly mounted on the top surface of the L-shaped support plate (905); an output end of the forward and reverse motor (907) movably passes through the top surface of the L-shaped support plate (905) and is fixedly connected to the rotating shaft (906); a gear (908) is fixedly sleeved on the outer wall surface of the rotating shaft (906); the gear (908) and the two racks (904) are meshed with each other.

8. The die adjustment device for a metal stamping die according to claim 6, characterized in that: A connecting rod (909) is fixedly installed on one end of the top surface of the two movable plates (903), a limiting plate (910) is fixedly installed on the other end of the two connecting rods (909), a plurality of protective strips are fixedly installed on one side surface of the two limiting plates (910), an L-shaped connecting plate (912) is fixedly installed on the other end of the two limiting plates (910), a T-shaped slot (911) is opened on the other side of the top surface of the other fixed plate (2), and one end of the two L-shaped connecting plates (912) is correspondingly fitted and slid inside the two T-shaped slots (911).

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