Continuous stamping die for terminal

Abstract

The utility model provides a continuous stamping die of a terminal, which comprises an upper die holder, a convex die assembly, a concave die assembly and a lower die holder, the convex die assembly comprises a blanking die set, a tearing die set, a bending die set and a cutting die set, the concave die assembly comprises a blanking cushion block insert, a tearing cushion block insert, a bending cushion block insert and a cutting cushion block insert, the tearing die set comprises a pressing block, and the cutting die set comprises a cutting die set. A guide hole is formed in the middle of the pressing block, a pressing rod is arranged in the guide hole in a sliding mode, and the tearing opening cushion block insert comprises a top cutter. The material plate is punched on the punching cushion block insert through the punching module in sequence, and a sheet body for forming a terminal is punched; the sheet body is stamped on the tearing cushion block insert through the tearing module to form a notch and a protruding part, is stamped on the bending cushion block insert through the bending module to form a plurality of bending parts at one end of the terminal, and finally is stamped on the cutting cushion block insert through the cutting module to separate the formed terminal from the material plate. According to the utility model, the terminal is automatically and continuously punched and formed to form a complete notch and a protruding part, and the overall size precision is high.

Description

Technical Field

[0001] The utility model relates to the field of continuous stamping dies, in particular to a continuous stamping die for terminals. Background Art

[0002] like Figure 1 The terminal shown has a notch in the middle, a protrusion is provided on one side of the notch, and one end of the terminal is bent to form a first bend, a second bend, and a third bend. The overall size of the terminal is very small (length × width: 26.7mm × 7.4mm), and customers have strict requirements on the size of the terminals. If manual stamping is relied upon, there will be dimensional deviations, and the protrusion provided at the notch can easily be broken, resulting in the terminal being scrapped. Therefore, a high-precision forming mold is urgently needed to achieve the forming of the terminal. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a continuous stamping die for a terminal, which can solve the technical problem of forming the terminal mentioned in the above technical background.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: including an upper die base, a punch assembly, a die assembly, and a lower die base arranged in sequence from top to bottom, the punch assembly including a punching die group, a tearing die group, a bending die group, and a cutting die group, the die assembly including a punching pad insert, a tearing pad insert, a bending pad insert, and a cutting pad insert corresponding to the positions of the punching die group, the tearing die group, the bending die group, and the cutting die group, wherein the tearing die group includes a pressure block, a guide hole is opened in the middle of the pressure block, a pressure rod is slidably arranged in the guide hole, the tearing pad insert includes a top knife, and the top knife is placed below the pressure rod.

[0005] Furthermore, the punching die group includes a first punching knife, a second punching knife, a third punching knife and a fourth punching knife, and the punching pad insert includes a first pad groove, a second pad groove, a third pad groove and a fourth pad groove, and the first punching knife, the second punching knife, the third punching knife and the fourth punching knife are arranged above the first pad groove, the second pad groove, the third pad groove and the fourth pad groove.

[0006] Furthermore, the bending die set includes a first punch block, a second punch block, a third punch block, a fourth punch block and a fifth punch block, and the bending pad insert includes a first pad block, a second pad block, a third pad block, a fourth pad block and a fifth pad block.

[0007] Furthermore, the cutting module includes a side punch and a middle punch, the cutting pad insert includes a side pad groove and a middle pad groove, and the side punch and the middle punch correspond to the side pad groove and the middle pad groove respectively.

[0008] Furthermore, the male die assembly further includes a punching die set, the female die assembly further includes a punching pad insert, the punching die set includes three punching needles, and the punching pad insert includes three punching slots.

[0009] The beneficial effects of the utility model are:

[0010] The utility model discloses a continuous stamping die for a terminal, comprising an upper die base, a punch assembly, a die assembly and a lower die base, the punch assembly comprising a punching die group, a tearing die group, a bending die group and a cutting die group, the die assembly comprising a punching pad insert, a tearing pad insert, a bending pad insert and a cutting pad insert, the tearing die group comprising a pressing block, a guide hole being opened in the middle of the pressing block, a pressure rod being slidably arranged in the guide hole, the tearing pad insert comprising a top knife, and the top knife being placed below the pressure rod; the material plate is sequentially punched on the punching pad insert by the punching die group, and a sheet body for forming the terminal is punched out on the material plate; the sheet body is punched on the tearing pad insert by the tearing die group, and a notch and a protrusion are punched out, and is punched on the bending pad insert by the bending die group to form a plurality of bending portions at one end of the terminal, and finally is punched on the cutting pad insert by the cutting die group to separate the formed terminal from the material plate. The utility model adopts automatic continuous stamping to form the terminal, thereby forming complete notches and protrusions, and the overall dimensional accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 Schematic diagram of the terminal structure;

[0013] Figure 2 A schematic structural diagram of the female die assembly of the continuous stamping die for the terminal according to the present invention;

[0014] Figure 3 A schematic diagram of the overall side structure of the continuous stamping die for the terminal according to the present invention;

[0015] Figure 4 A partial enlarged view of the continuous stamping die for the terminal according to the present invention;

[0016] Figure 5 A schematic structural diagram of a blanking pad insert, a punching pad insert and a tearing pad insert of a continuous stamping die for a terminal according to the utility model.

[0017] Figure 6Schematic diagram of the structures of the bending pad insert and the cutting pad insert of the continuous stamping die of the terminal described in the present invention.

[0018] Description of main component symbols

[0019] 10. Terminal; 101. Notch; 1011. Protrusion; 102. First bend; 103. Second bend; 104. Third bend; 105. Through hole;

[0020] 20. Upper die seat;

[0021] 30. Punching gasket insert; 301. First gasket groove; 302. Second gasket groove; 303. Third gasket groove; 304. Fourth gasket groove;

[0022] 40. Tear pad insert; 401. Top knife;

[0023] 41. Press block; 411. Press rod;

[0024] 50. Punching pad insert; 501. Punching groove;

[0025] 60, bending pad insert; 601, first pad; 602, second pad; 603, third pad; 604, fourth pad; 605, fifth pad;

[0026] 70, cutting pad insert; 701, side pad groove; 702, middle pad groove;

[0027] 80. Lower die base. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] like Figure 1 The terminal 10 shown has a notch 101 in the middle, a protrusion 1011 is provided on one side of the notch 101, and one end of the terminal 10 is bent to form a first bending portion 102, a second bending portion 103 and a third bending portion 104. The overall size of the terminal 10 is very small (length × width: 26.7mm × 7.4mm).

[0031] Please refer to Figure 2-6 As shown, the utility model provides a continuous stamping die for a terminal, comprising an upper die base 20, a punch assembly, a die assembly, and a lower die base 80 arranged in sequence from top to bottom. The punch assembly comprises a blanking die group, a tearing die group, a bending die group, and a cutting die group. The die assembly comprises a blanking pad insert 30, a tearing pad insert 40, a bending pad insert 60, and a cutting pad insert 70 corresponding to the positions of the blanking die group, the tearing die group, the bending die group, and the cutting die group. Specifically, The material sheet is sequentially punched on the punching pad insert 30 by the punching module, and a sheet body for forming the terminal 10 is punched out on the material sheet; the sheet body is punched on the tearing pad insert 40 by the tearing module, and a notch 101 and a protrusion 1011 are punched out, and then it is punched on the bending pad insert 60 by the bending module to form multiple bending parts at one end of the terminal 10, and finally it is punched on the cutting pad insert 70 by the cutting module to separate the formed terminal 10 from the material sheet and punch out a complete terminal 10.

[0032] Please refer to Figure 2 、 Figure 5 As shown, the blanking die set includes a first punch, a second punch, a third punch, and a fourth punch. The blanking spacer insert 30 includes a first gasket groove 301, a second gasket groove 302, a third gasket groove 303, and a fourth gasket groove 304. The first, second, third, and fourth punches are arranged above the first gasket groove 301, the second gasket groove 302, the third gasket groove 303, and the fourth gasket groove 304. Specifically, the first, second, third, and fourth punches are used to punch the first gasket groove 301, the second gasket groove 302, the third gasket groove 303, and the fourth gasket groove 304 on the sheet, punching out four special-shaped holes on the sheet. The sheet between the four special-shaped holes is used to stamp and form the terminal 10.

[0033] Please refer to Figure 2 、 Figure 5 As shown, the male mold assembly further includes a punching die set, and the female mold assembly further includes a punching pad insert 50. The punching die set includes three punching needles, and the punching pad insert 50 includes three punching grooves 501. The sheet body is punched in the three punching grooves 501 by the three punching needles to punch out three through holes 105 on the terminal 10.

[0034] Please refer to Figure 2-4 As shown, the tearing module includes a pressing block 41, a guide hole is opened in the middle of the pressing block 41, and a pressing rod 411 is slidably set in the guide hole. The tearing pad insert 40 includes a top knife 401, and the top knife 401 is placed below the pressing rod 411. Specifically, the lower pressing body of the pressing block 41 is on the fixed knife, and the fixed knife is inserted upward into the guide hole. At the same time, the pressing rod 411 presses down on the top knife 401 to form a notch 101 and a protrusion 1011. Automatic punching avoids the protrusion 1011 being broken by manual punching, and the size and specifications of each notch 101 and protrusion 1011 are consistent, with small dimensional deviation and high precision.

[0035] Please refer to Figure 2 、 Figure 6 As shown, the bending die set includes a first punch block, a second punch block, a third punch block, a fourth punch block, and a fifth punch block, and the bending pad insert 60 includes a first pad block 601, a second pad block 602, a third pad block 603, a fourth pad block 604, and a fifth pad block 605. Specifically, one end of the sheet body is punched on the first pad block 601 by the first punch block 41 to form a 45° bend at one end edge of the terminal 10, and then punched on the second pad block 602 by the second punch block to form a first bent portion 102 on the other end of the sheet body, and then punched on the third pad block 603 by the third punch block to form the second bent portion 103 of the terminal 10, and then punched on the fourth pad block 604 and the fifth pad block 605 by the fourth and fifth punch blocks. The third bent portion 104 of the terminal 10 is formed by two punching operations. After multiple bending operations, multiple bent portions of the terminal 10 are formed, and the dimensional error is small.

[0036] Please refer to Figure 2 、 Figure 6 As shown, the cutting module includes side punches and a middle punch, and the cutting spacer insert 70 includes side gasket grooves 701 and middle gasket grooves 702. The side punches and the middle punch correspond to the side gasket grooves 701 and the middle gasket grooves 702, respectively. Specifically, the side punches punch the two sides of the terminal 10 connected to the sheet material in the side gasket grooves 701, while the middle punch punches the middle gasket groove 702 between the two terminals 10, separating the terminal 10 from the sheet material to form an independent product.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous stamping die for terminals, used for stamping sheet metal to form terminals, characterized in that: It includes an upper die base, a punch assembly, a die assembly, and a lower die base arranged in sequence from top to bottom, the punch assembly includes a punching die group, a tearing die group, a bending die group, and a cutting die group, the die assembly includes a punching pad insert, a tearing pad insert, a bending pad insert, and a cutting pad insert corresponding to the positions of the punching die group, the tearing die group, the bending die group, and the cutting die group, wherein the tearing die group includes a pressure block, a guide hole is opened in the middle of the pressure block, a pressure rod is slidably arranged in the guide hole, the tearing pad insert includes a top knife, and the top knife is placed below the pressure rod.

2. The continuous stamping die for terminals according to claim 1, characterized in that: The punching die group includes a first punching knife, a second punching knife, a third punching knife and a fourth punching knife, and the punching pad insert includes a first pad groove, a second pad groove, a third pad groove and a fourth pad groove. The first punching knife, the second punching knife, the third punching knife and the fourth punching knife are arranged above the first pad groove, the second pad groove, the third pad groove and the fourth pad groove.

3. The continuous stamping die for terminals according to claim 1, characterized in that: The bending die set includes a first punch block, a second punch block, a third punch block, a fourth punch block and a fifth punch block, and the bending pad insert includes a first pad block, a second pad block, a third pad block, a fourth pad block and a fifth pad block.

4. The continuous stamping die for terminals according to claim 1, characterized in that: The cutting module includes a side punch and a middle punch, and the cutting pad insert includes a side pad groove and a middle pad groove. The side punch and the middle punch correspond to the side pad groove and the middle pad groove respectively.

5. The continuous stamping die for terminals according to claim 1, characterized in that: The male die assembly further includes a punching die set, and the female die assembly further includes a punching pad insert. The punching die set includes three punching needles, and the punching pad insert includes three punching slots.

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