Precision hardware blanking die

Abstract

The utility model discloses a precision hardware blanking die, which relates to the technical field of dies and comprises a base, two first supports are mounted at the top of the base, second supports are slidably connected to the interiors of the two first supports, and first support plates are mounted at the tops of the two second supports. The precise hardware blanking die has the advantages that the threaded column on one side of the die is in threaded connection with the threaded hole in the supporting plate, the number and the position of the upper die and the number and the position of the lower die can be adjusted according to requirements, multiple sets of metal pieces can be blanked, the machining efficiency is improved, the telescopic limiting frame is arranged at the bottom of the upper die, and therefore the precision hardware blanking die is convenient to use. By means of deformation of the spring, the pressing plate at one end of the spring can extrude and fix a metal piece along with downward movement of the upper die, displacement of the metal piece is prevented, placement of the metal piece cannot be hindered, meanwhile, under the action of the lead screw, the limiting frame can move, the position of the pressing plate can be adjusted conveniently, and the pressing plate can be aligned with the metal piece better.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a precision hardware punching mold. Background Art

[0002] The punching die is a widely used die. By placing the metal sheet in the die and then using the punching equipment to impact it, the metal sheet is sheared, punched, elliptical punched or cut into other shapes under the action of the die. It is mainly used for punching and blanking of metal sheets. The punching die is widely used in the automotive, home appliances, mechanical equipment and other industries.

[0003] Application No. 202222955694.7 discloses a precision hardware punching die. A limit device is set to prevent movement during the punching process, thereby affecting the punching effect. Secondly, a spring is set in the punching device so that the pressing plate can be reset when the hydraulic rod moves upward. At the same time, the practicality of the device is further increased by setting a shock-absorbing pad. By setting a slide groove and a slider in the punching device, the stability of the pressing plate lifting and lowering is improved, and the processing accuracy of the device is improved.

[0004] In the limiting structure of the above application, the limiting posts on the mold plate need to be inserted into the sleeve of the punch. The limiting posts will hinder the placement of metal whose length or width is greater than the spacing between the limiting posts. While there are great limitations, only one group of metal can be punched at a time, and the efficiency is low. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a precision metal punching die, which solves the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a precision metal blanking die, including a base, two first brackets are installed on the top of the base, the insides of the two first brackets are slidably connected to the second bracket, the tops of the two second brackets are installed with a first support plate, the tops of the first support plates are installed with multiple lower molds, a support frame is installed on the top of the base and located on the outside of the first support plate, a hydraulic rod is installed on the top of the support frame, the output end of the hydraulic rod is fixedly connected to the second support plate, multiple upper molds are installed on the bottom of the second support plate, one side of the multiple lower molds is installed with a first threaded column, and one side of the multiple upper molds is installed with a second threaded column , the first support plate and the second support plate are respectively provided with a plurality of first threaded holes and a plurality of second threaded holes that match the first threaded column and the second threaded column, the interiors of the plurality of upper molds are provided with two convex grooves, the interiors of the two convex grooves are slidably connected with a convex block, the bottom of the convex block is installed with a first limit frame, the interior of the first limit frame is slidably connected with the second limit frame, one end of the second limit frame is connected with a pressure plate, the outer side of the second limit frame is sleeved with a first spring, the interiors of the two convex grooves are rotatably connected with a screw rod, the screw rod passes through the convex block and is threadedly connected to the convex block, and the corresponding two sides of the plurality of upper molds are rotatably connected with a twist, and the twist is fixedly connected to the screw rod.

[0007] Preferably, a punching head is installed at the bottom of each of the plurality of upper dies.

[0008] Preferably, a plurality of lower dies are provided with a forming groove cooperating with the punching head inside, a bearing plate is slidably connected inside the forming groove, and a second spring is connected between the bearing plate and the forming groove.

[0009] Preferably, a damper is connected between the base and the first support plate and between the two second brackets, and a third spring is sleeved on the outer side of the second bracket.

[0010] Preferably, an air groove is opened inside the base, an air pump is installed on the top of the base, the input end of the air pump extends into the air groove, and suction cups are installed on two corresponding sides of the bottom of the base, and the suction cups are connected to the air groove.

[0011] Preferably, the plurality of lower molds each include a first mold body and a second mold body, first connecting members are installed on corresponding sides of the first mold body, second connecting members are installed on corresponding sides of the second mold body, and the first connecting members and the second connecting members are fixed by screws.

[0012] Preferably, a rubber pad is installed on one side of the pressing plate.

[0013] The utility model provides a precision metal punching die, which has the following beneficial effects:

[0014] 1. The precision metal blanking die can adjust the number and position of the upper and lower dies according to needs through the threaded connection between the threaded column on one side of the die and the threaded hole in the support plate, and perform blanking on multiple groups of metal parts to improve processing efficiency. A telescopic limit frame is provided at the bottom of the upper die. By utilizing the deformation of the spring, the pressure plate at one end of the spring can move downward with the upper die to squeeze and fix the metal parts to prevent displacement without hindering the placement of the metal parts. At the same time, under the action of the screw rod, the limit frame is movable, which is convenient for adjusting the position of the pressure plate to better align it with the metal parts.

[0015] 2. The precision metal blanking die has a combined structure of the lower die, which makes it easy to disassemble the lower die and take out the internal metal when the metal generates high temperature due to deformation and friction, causing adhesion and blockage between the workpiece and the contact surface of the die. A suction cup is installed at the bottom of the base, which is conducive to enhancing the stability of the base placement under the action of the air pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a top plan view of the utility model;

[0019] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0020] In the figure: 1, base; 2, first bracket; 3, second bracket; 4, first support plate; 5, lower mold; 51, first mold body; 52, second mold body; 53, first connecting piece; 54, second connecting piece; 6, support frame; 7, hydraulic rod; 8, second support plate; 9, upper mold; 10, first threaded column; 11, second threaded column; 12, first threaded hole; 13, second threaded hole; 14, convex groove; 15, convex block; 16, first limit frame; 17, second limit frame; 18, pressure plate; 19, first spring; 20, screw rod; 21, twist; 22, punching head; 23, forming groove; 24, bearing plate; 25, second spring; 26, third spring; 27, damper; 28, wind groove; 29, suction cup; 30, vacuum pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 4The utility model provides a technical solution: a precision metal blanking die, comprising a base 1, two first brackets 2 are installed on the top of the base 1, the insides of the two first brackets 2 are slidably connected with second brackets 3, a first support plate 4 is installed on the top of the two second brackets 3, a plurality of lower dies 5 are installed on the top of the first support plate 4, a support frame 6 is installed on the top of the base 1 and located on the outside of the first support plate 4, a hydraulic rod 7 is installed on the top of the support frame 6, the output end of the hydraulic rod 7 is fixedly connected with a second support plate 8, a plurality of upper dies 9 are installed on the bottom of the second support plate 8, a first threaded column 10 is installed on one side of the plurality of lower dies 5, a second threaded column 11 is installed on one side of the plurality of upper dies 9, the first support plate 4 and the second support plate 8 are installed. A plurality of first threaded holes 12 and a plurality of second threaded holes 13 are respectively provided inside thereof, which match the first threaded column 10 and the second threaded column 11. The detachable structure is convenient for increasing or decreasing the number of the lower mold 5 and the upper mold 9 according to the number of metal parts, and for punching multiple groups of metal parts at the same time, so as to improve efficiency. A punching head 22 is installed at the bottom of each of the multiple upper molds 9, and a forming groove 23 matching the punching head 22 is provided inside each of the multiple lower molds 5, so that the upper mold 9 moves downward with the extension of the hydraulic rod 7, and the punching head 22 is inserted into the forming groove 23 to punch the metal part. A bearing plate 24 is slidably connected inside the forming groove 23, and a second spring 25 is connected between the bearing plate 24 and the forming groove 23. Through the second spring 2 5 is deformed to facilitate pushing the carrier plate 24 to reset and ejecting the punched-out part of the metal part. The multiple lower molds 5 include a first mold body 51 and a second mold body 52. ​​The first mold body 51 has first connecting members 53 installed on both sides corresponding to the first mold body 51, and the second connecting members 54 are installed on both sides corresponding to the second mold body 52. ​​The first connecting members 53 and the second connecting members 54 are fixed by screws. The combined structure allows the lower mold 5 to be disassembled and the metal components adhered or blocked in the forming groove 23 to be taken out. The multiple upper molds 9 have two convex grooves 14 arranged inside, and the two convex grooves 14 are slidably connected to the inside of the convex blocks 15. The bottom of the convex blocks 15 is installed with a first limiting frame 16, and the inside of the first limiting frame 16 is slidably connected to The second limiting frame 17, one end of the second limiting frame 17 is connected to a pressure plate 18, and the outer side of the second limiting frame 17 is sleeved with a first spring 19. Through the telescopic structure of the first limiting frame 16 and the second limiting frame 17, the pressure plate 18 contacts the metal part as the upper mold 9 moves downward, and squeezes and fixes it to avoid displacement of the metal part. A rubber pad is installed on one side of the pressure plate 18, which is beneficial to increase the friction with the metal surface to avoid slipping. The insides of the two convex grooves 14 are rotatably connected with screw rods 20, which penetrate the convex block 15 and are threadedly connected to the convex block 15. The corresponding two sides of the multiple upper molds 9 are rotatably connected with twisting 21, and the twisting 21 is fixedly connected to the screw rod 20 to drive the screw rod 20 to rotate.The convex block 15, the first limiting frame 16 and the second limiting frame 17 are driven to move, so as to adjust the position of the pressing plate 18 so that it can be better aligned with the metal parts. A damper 27 is connected between the base 1 and the first support plate 4 and between the two second brackets 3. A third spring 26 is sleeved on the outer side of the second bracket 3. Through the deformation of the third spring 26, it is convenient to reduce the shock and buffer the impact force generated by the hydraulic rod 7 pushing the multiple upper molds 9 on the first support plate 4 and the multiple lower molds 5, so as to make it more stable. An air groove 28 is opened inside the base 1, and an air pump 30 is installed on the top of the base 1. The input end of the air pump 30 extends into the air groove 28. Suction cups 29 are installed on both sides of the corresponding bottom of the base 1. The suction cups 29 are connected to the air groove 28. Under the action of the air pump 30, negative pressure is formed in the air groove 28 and the suction cup 29, which adsorbs the surface of the placement position and increases the stability of the base 1.

[0023] In summary, when the precision metal blanking die is used, the corresponding lower die 5 and upper die 9 are prepared according to the number of metal parts, and the first threaded column 10 and the second threaded column 11 on one side of the lower die 5 and the upper die 9 are respectively connected with the first threaded hole 12 in the first support plate 4 and the second threaded hole 13 in the second support plate 8, and multiple lower dies 5 and multiple upper dies 9 are respectively installed on the first support plate 4 and the second support plate 8. At this time, the metal parts are placed on the multiple lower dies 5 in sequence, and the hydraulic rod 7 pushes the second support plate 8 to move downward, so that the multiple upper dies 9 are lowered accordingly, and the pressing plate 18 at one end of the second limiting frame 17 in the first limiting frame 16 at the bottom of the upper die 9 contacts the metal parts, and Under the action of the first spring 19, the metal part is squeezed and fixed. At the same time, the punching head 22 at the bottom of the upper mold 9 punches the part of the metal part that is aligned with the molding groove 23 in the lower mold 5 into the molding groove 23. After completing the processing of multiple metal parts, the hydraulic rod 7 drives the multiple upper molds 9 to reset. As the pressure is eliminated, the supporting plate 24 in the molding groove 23 pushes the punched part of the metal part upward under the action of the second spring 25. When there is a problem with the punched part, such as sticking or blocking the molding groove 23, the first connecting parts 53 and the second connecting parts 54 on both sides of the first mold body 51 and the second mold body 52 are separated by screws, the lower mold 5 is disassembled and the metal component is taken out.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision metal blanking die, comprising a base (1), characterized in that: Two first brackets (2) are installed on the top of the base (1), and the interiors of the two first brackets (2) are slidably connected to the second brackets (3), and the tops of the two second brackets (3) are installed with a first support plate (4), and the tops of the first support plate (4) are installed with a plurality of lower molds (5), and a support frame (6) is installed on the top of the base (1) and located outside the first support plate (4), and a hydraulic rod (7) is installed on the top of the support frame (6), and the output end of the hydraulic rod (7) is fixedly connected to the second support plate (8), and the bottom of the second support plate (8) is installed with a plurality of upper molds (9), and a first threaded column (10) is installed on one side of the plurality of lower molds (5), and a second threaded column (11) is installed on one side of the plurality of upper molds (9), and the interiors of the first support plate (4) and the second support plate (8) are respectively provided with a threaded column (11) connected to the first threaded column (10) and the second threaded column (11). A plurality of first threaded holes (12) and a plurality of second threaded holes (13) matched with the two threaded columns (11); two convex grooves (14) are provided inside the plurality of upper molds (9); a convex block (15) is slidably connected inside the two convex grooves (14); a first limiting frame (16) is installed at the bottom of the convex block (15); a second limiting frame (17) is slidably connected inside the first limiting frame (16); a pressing plate (18) is connected to one end of the second limiting frame (17); a first spring (19) is sleeved on the outer side of the second limiting frame (17); a screw rod (20) is rotatably connected inside the two convex grooves (14); the screw rod (20) passes through the convex block (15) and is threadedly connected to the convex block (15); corresponding sides of the plurality of upper molds (9) are rotatably connected with a twisting wheel (21); the twisting wheel (21) is fixedly connected to the screw rod (20).

2. A precision metal blanking die according to claim 1, characterized in that: A punching head (22) is installed at the bottom of each of the plurality of upper dies (9).

3. A precision metal blanking die according to claim 2, characterized in that: A plurality of lower dies (5) are provided with a forming groove (23) matching with the punching head (22), a bearing plate (24) is slidably connected to the inside of the forming groove (23), and a second spring (25) is connected between the bearing plate (24) and the forming groove (23).

4. The precision metal blanking die according to claim 1, characterized in that: A damper (27) is connected between the base (1) and the first support plate (4) and between the two second brackets (3), and a third spring (26) is sleeved on the outer side of the second bracket (3).

5. The precision metal blanking die according to claim 1, characterized in that: An air groove (28) is provided inside the base (1), an air pump (30) is installed on the top of the base (1), an input end of the air pump (30) extends into the air groove (28), and suction cups (29) are installed on two corresponding sides of the bottom of the base (1), and the suction cups (29) are connected to the air groove (28).

6. The precision metal blanking die according to claim 1, characterized in that: The plurality of lower molds (5) each comprise a first mold body (51) and a second mold body (52); first connecting members (53) are installed on corresponding sides of the first mold body (51); second connecting members (54) are installed on corresponding sides of the second mold body (52); and the first connecting member (53) and the second connecting member (54) are fixed by screws.

7. The precision metal blanking die according to claim 1, characterized in that: A rubber pad is installed on one side of the pressing plate (18).

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