Die for producing square terminal

Abstract

The utility model relates to the technical field of terminal manufacturing, in particular to a mold for producing a square terminal. Comprising an upper die and a lower die, two rows of supporting columns are transversely arranged in the middle of the lower die, and a stamping channel for a workpiece to pass through is formed between the two rows of supporting columns; the stamping channel is provided with a pretreatment area, a pre-bending area, a bending area, a bending edge covering area, a side pushing attaching area and a shaping area. According to the die, after the two ends of a square terminal are bent, the square terminal continues to pass through the side pushing attaching area and the shaping area; the two connecting ends of the square terminal are further shaped and shaped; after the terminals are enclosed into the square structure, the connecting ends are permanently and firmly abutted against each other. Therefore, the manufacturing yield of the square terminal is improved.

Description

Technical Field

[0001] The present application relates to the technical field of terminal production, and more specifically, to a mold for producing square terminals. Background Art

[0002] The metal terminals used in various existing electrical connectors, especially micro data connectors, are generally made by stamping and shaping a strip of metal material through a mold. The production of a metal terminal usually requires processes such as trimming, positioning hole punching, stamping or cutting the terminal plane unfolded shape, and shaping the terminal.

[0003] In the existing process of making square terminals, the unfolded shape of the square terminal is generally cut out first, and then the two sides of the terminal are bent to form a square terminal structure. In the existing process, after the terminal is bent, the two connecting ends of the square are easily affected by the elastic rebound force of the metal, resulting in the two ends of the square terminal being unable to be connected, resulting in a low yield rate of the terminal during the production process. Utility Model Content

[0004] The present application aims to overcome the problems in the prior art, and the technical problem to be solved by the present application is to provide a mold for producing square terminals.

[0005] A mold for producing square terminals, comprising an upper mold and a lower mold, wherein two rows of support columns are horizontally arranged in the middle of the lower mold, and a stamping channel for a workpiece to pass through is formed between the two rows of support columns; the stamping channel is provided with a pre-treatment area, a pre-bending area, a bending area, a bending and hemming area, a side-pushing and clinging area, and a shaping area;

[0006] The workpiece is punched and formed in sequence through the pre-treatment area, the pre-folding area, the bending area, the bending and hemming area, the side-pushing and pressing area, and the shaping area.

[0007] In some embodiments, the pre-folding area includes a first fixing block provided on the lower mold and a first punching block provided on the upper mold;

[0008] The first fixing block and the first punching block are disposed in abutment with each other to form a first abutment surface. The first abutment surface includes a first surface and two first side surfaces connected at two ends of the first surface.

[0009] In some embodiments, the angle between the first side surface and the first surface is 120°-150°.

[0010] In some embodiments, the bending area includes a second fixing block provided on the lower die and a second punching block provided on the upper die;

[0011] The second fixing block and the second punching block are disposed in abutment with each other to form a second abutment surface. The second abutment surface includes a second surface and two second side surfaces connected at two ends of the second surface.

[0012] In some embodiments, the angle between the second side surface and the second surface is 90°.

[0013] In some embodiments, the bending and hemming area includes a third fixing block provided on the lower die and a third punching block provided on the upper die;

[0014] One side surface of the third fixing block is connected to the lower mold, and the lower surface of the third fixing block is suspended to form an edge wrapping space;

[0015] The third punching block includes two first punching arms, and a punching protrusion is arranged inside the first punching arm; when pressing the material, the punching protrusion abuts against two sides of the third fixing block.

[0016] In some embodiments, the side push close area is provided with a fourth fixing block, a side push arm, and a fourth stamping block;

[0017] The fourth fixing block and the side push arm are arranged on the lower mold, and the two side push arms are respectively arranged on both sides of the fourth fixing block, wherein the inner side of the side push arm is provided with a side push protrusion;

[0018] The fourth punching block is arranged on the lower die and abuts against the fourth fixing block and the upper surface of the side thrust arm.

[0019] In some embodiments, the side push close area is further provided with two top connecting arms, which are arranged on the upper die and located on both sides of the fourth punching block; the top connecting arms are abutted against the outer sides of the side push arms.

[0020] In some embodiments, the shaping area is provided with a fifth fixing block, a shaping arm, and a fifth punching block;

[0021] The fifth fixed block and the shaping arm are arranged on the lower mold, and the two side push arms are respectively arranged on both sides of the fourth fixed block, and the shaping arm is provided with a third abutting surface for abutting against the workpiece.

[0022] In some embodiments, the pretreatment area is sequentially provided with a first cutting area, a first folding area, a second folding area, a denting area, a second cutting area, and a third cutting area, and the workpiece is pretreated through the first cutting area, the first folding area, the second folding area, the denting area, the second cutting area, and the third cutting area.

[0023] Compared with the prior art, the beneficial effects of the present application are: after the mold of the present application bends the two ends of the square terminal, it continues to push the clamping area and the shaping area sideways; further shapes and reshapes the two connecting ends of the square terminal; after the terminals are enclosed into a square structure, the connecting ends are permanently and firmly abutted together; thereby improving the manufacturing yield of the square terminals.

[0024] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the lower mold of the mold.

[0026] Figure 2 A schematic diagram of a mold for producing square terminals.

[0027] Figure 3 Schematic diagram of sheet metal forming.

[0028] Figure 4 A schematic diagram of the pre-folding area.

[0029] Figure 5 Schematic diagram of the bending area.

[0030] Figure 6 A schematic diagram of the bending hemming area.

[0031] Figure 7 A schematic diagram of the side push clamping area.

[0032] Figure 8 Schematic diagram of the shaping area.

[0033] in,

[0034] 101, pre-folding area, 1011, first fixing block, 1012, first punching block;

[0035] 102, bending area, 1021, second fixing block, 1022, second punching block;

[0036] 103. Z-bend forming area;

[0037] 104, bending and hemming area, 1041, third fixing block, 1042, third punching block, 1043, punching protrusion;

[0038] 105, side push close area, 1051, fourth fixing block, 1052, side push arm, 1053, side push protrusion, 1054, fourth punching block, 1055, top connecting arm;

[0039] 106, shaping area, 1061, fifth fixing block, 1062, shaping arm, 1063, fifth punching block;

[0040] 107. Pretreatment area, 108. First cutting area, 109. First folding area, 110. Second folding area, 111. Concave point punching area, 112. Second cutting area, 113. Third cutting area, 200. Lower die, 300. Upper die, 1000. Workpiece, 120. Punching guide hole area, 130. Product cutting area. DETAILED DESCRIPTION

[0041] The present application is further described below in conjunction with specific implementation methods.

[0042] The same or similar numbers in the drawings of the embodiments of the present application correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside", etc. indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0043] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0044] Embodiment 1,

[0045] In such Figure 1-3 In the illustrated embodiment, the present application provides a mold for producing square terminals, including an upper mold 300 and a lower mold 200, wherein two rows of support columns are horizontally arranged in the middle of the lower mold 200, and a stamping channel for a workpiece 1000 to pass through is formed between the two rows of support columns; the stamping channel is provided with a pre-treatment area 107, a pre-folding area 101, a bending area 102, a bending and hemming area 104, a side push and close area 105, and a shaping area 106; the workpiece 1000 is stamped and formed in sequence through the pre-treatment area 107, the pre-folding area 101, the bending area 102, the bending and hemming area 104, the side push and close area 105, and the shaping area 106. See Figure 1-3 In the present application, the pre-treatment area 107 is used to cut the edge of the workpiece 1000 for the subsequent bending and forming process. The workpiece 1000 passes through the pre-bending area 101, the bending area 102, the bending and edging area 104, the side push and close area 105, and the shaping area 106 in sequence, and finally forms a square terminal. After the mold of the present application bends the two ends of the square terminal, it continues to pass through the side push and close area 105 and the shaping area 106; further shapes and reshapes the two connecting ends of the square terminal; so that after the terminals are enclosed into a square structure, the connecting ends are permanently and firmly abutted together; thereby improving the manufacturing yield of the square terminal.

[0046] In addition, in this embodiment, Figure 1 , Figure 3 As shown, a punching guide hole area 120 is provided at the head end of the mold, which is used to punch a guide hole on the surface of the workpiece 1000, and a support column that can pass through the guide hole is provided on the lower mold 200, which is used to guide the workpiece 1000 to move along the module processing direction and fix the workpiece 1000 during processing. A Z-bending forming area 103 can also be provided between the bending area 102 and the bending and edging area 104, which is used to bend the connecting end of the square terminal. A product cutting area 130 is provided at the end of the mold, and a cutter can be provided to cut off the processed product.

[0047] Embodiment 2,

[0048] exist Figure 4-8 In the embodiment shown, the pre-folding area 101, the bending area 102, the bending and hemming area 104, the side push and close area 105, and the shaping area 106 are all arranged in the stamping channel described in Embodiment 1; specifically,

[0049] See also Figure 4 , the pre-folding area 101 includes a first fixed block 1011 provided on the lower die 200 and a first punching block 1012 provided on the upper die 300; the first fixed block 1011 and the first punching block 1012 are arranged to abut against each other and form a first abutting surface, and the first abutting surface includes a first surface and two first side surfaces connected at both ends of the first surface. In this example, the workpiece 1000 is punched toward the workpiece 1000 fixed on the first fixed block 1011 by the first punching block 1012 to achieve pre-folding of the workpiece 1000; the angle between the first side surface and the first surface is 120°-150°; preferably, the angle between the first side surface and the first surface is 135°. Before the side wall of the workpiece 1000 is bent, the deformation caused by the 90° bending of the workpiece 1000 can be reduced by pre-folding, and the rebound phenomenon of the workpiece 1000 after bending can be alleviated.

[0050] See also Figure 5The bending area 102 includes a second fixed block 1021 provided on the lower die 200 and a second punching block 1022 provided on the upper die 300; the second fixed block 1021 and the second punching block 1022 are disposed in abutment with each other to form a second abutting surface, and the second abutting surface includes a second surface and two second side surfaces connected at both ends of the second surface. The angle between the second side surface and the second surface is 90°. In this embodiment, the bending area 102 is used to bend the side wall of the workpiece 1000 to form 90°. The two sides of the second abutting surface formed by the second fixed block 1021 and the second punching block 1022 are right-angled sides.

[0051] See also Figure 6 The bending and hemming area 104 includes a third fixed block 1041 provided on the lower die 200 and a third punching block 1042 provided on the upper die 300; one side of the third fixed block 1041 is connected to the lower die 200, and the lower surface of the third fixed block 1041 is suspended to form an hemming space; the third punching block 1042 includes two first punching arms, and a punching protrusion 1043 is provided inside the first punching arm; when pressing the material, the punching protrusion abuts against both sides of the third fixed block 1041. The bending and hemming area 104 is used to bend the edge that has been bent by 90° by another 90°, so that the edges of the two side walls of the workpiece 1000 are parallel to the body of the workpiece 1000.

[0052] See also Figure 7 The side push close area 105 is provided with a fourth fixed block 1051, a side push arm 1052, and a fourth punching block 1054; the fourth fixed block 1051 and the side push arm 1052 are arranged on the lower die 200, and the two side push arms 1052 are respectively arranged on both sides of the fourth fixed block 1051, wherein the inner side of the side push arm 1052 is provided with a side push protrusion 1053; the fourth punching block 1054 is arranged on the lower die 200 and abuts against the upper surface of the fourth fixed block 1051 and the side push arm 1052. The side push close area 105 is also provided with two top connecting arms 1055, the top connecting arms 1055 are arranged on the upper die 300 and located on both sides of the fourth punching block 1054; the top connecting arms 1055 are abutted against the outer side of the side push arm 1052. In this embodiment, the side push close area 105 is used to shape the workpiece 1000, and the fourth fixed block 1051, the side push arm 1052, and the fourth punching block 1054 are squeezed, and under the force of the side push protrusion 1053, the two edges of the workpiece 1000 are further brought closer to the middle, reducing the impact of the workpiece 1000 rebounding after bending, making the square terminal more complete. At the same time, a top arm 1055 is also provided on the outside of the fourth punching block 1054, and the top arm 1055 pushes the side push arm 1052, so that the side push arm 1052 is further crimped on the workpiece 1000 for pressing.

[0053] See also Figure 8 , the shaping area 106 is provided with a fifth fixing block 1061, a shaping arm 1062, and a fifth punching block 1063; the fifth fixing block 1061 and the shaping arm 1062 are provided on the lower die 200, and the two side push arms 1052 are respectively provided on both sides of the fourth fixing block 1051, and the shaping arm 1062 is provided with a third abutting surface for abutting the workpiece 1000. In this embodiment, the workpiece 1000 is bent into a square in the previous step, and the width of the square workpiece 1000 is greater than the fifth fixing block 1061, so that the side wall of the workpiece 1000 abuts against the third abutting surface of the shaping arm 1062, and the side wall edge of the workpiece 1000 is further shaped and shaped by the third abutting surface, so that the structure is more complete. After the two ends of the square terminal are bent, the mold of the present application continues to push the contact area and the shaping area sideways to further shape and reshape the two connecting ends of the square terminal so that after the terminals are enclosed into a square structure, the connecting ends are permanently and firmly abutted together, thereby improving the manufacturing yield of the square terminals.

[0054] Embodiment 3,

[0055] In this embodiment, based on Embodiment 1, the pretreatment area 107 is provided with a first cutting area 108, a first folding area 109, a second folding area 110, a denting area 111, a second cutting area 112, and a third cutting area 113 in sequence, and the workpiece 1000 is pretreated by the first cutting area 108, the first folding area 109, the second folding area 110, the denting area 111, the second cutting area 112, and the third cutting area 113. Figure 1 , 3 , the pretreatment area 107 is used to cut out the bending and forming space of the workpiece 1000. The first cutting area 108 is used to cut out the two corners of the front end of the workpiece 1000, and the two corners can also be bent through the first folding area 109 and the second folding area 110, which can be used to make a side surface of the square terminal perpendicular to the above-mentioned bending surface. The denting area 111 is used to punch holes on the workpiece 1000. The second cutting area 112 is used to cut out the two side edges of the square terminal. The third cutting area 113 is used to cut out the bottom edge of the square terminal. After the mold of the present application bends the two ends of the square terminal, it continues to push the clamping area 105 and the shaping area 106 sideways; further shape and reshape the two connecting ends of the square terminal; so that after the terminals are enclosed into a square structure, the connecting ends are permanently and firmly abutted together; thereby improving the manufacturing yield of the square terminal.

[0056] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0057] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and further may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.

[0058] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A mold for producing square terminals, characterized in that: The invention comprises an upper die (300) and a lower die (200), wherein two rows of support columns are arranged transversely in the middle of the lower die (200), and a punching channel for a workpiece (1000) to pass through is formed between the two rows of support columns; the punching channel is provided with a pre-treatment area (107), a pre-folding area (101), a bending area (102), a bending and hemming area (104), a side-pushing and clinging area (105), and a shaping area (106); The workpiece (1000) is stamped and formed in sequence through the pre-treatment area (107), the pre-folding area (101), the bending area (102), the bending and hemming area (104), the side-pushing and pressing area (105), and the shaping area (106).

2. A mold for producing square terminals according to claim 1, characterized in that: The pre-folding area (101) comprises a first fixing block (1011) provided on the lower die (200) and a first punching block (1012) provided on the upper die (300); The first fixing block (1011) and the first punching block (1012) are arranged to abut against each other to form a first abutting surface, wherein the first abutting surface comprises a first surface and two first side surfaces connected to two ends of the first surface.

3. A mold for producing square terminals according to claim 2, characterized in that: An included angle between the first side surface and the first surface is 120°-150°.

4. A mold for producing square terminals according to claim 2, characterized in that: The bending area (102) comprises a second fixing block (1021) provided on the lower die (200) and a second punching block (1022) provided on the upper die (300); The second fixing block (1021) and the second punching block (1022) are arranged to abut against each other to form a second abutting surface, and the second abutting surface comprises a second surface and two second side surfaces connected to two ends of the second surface.

5. A mold for producing square terminals according to claim 4, characterized in that: An included angle between the second side surface and the second surface is 90°.

6. A mold for producing square terminals according to claim 4, characterized in that: The bending and hemming area (104) comprises a third fixing block (1041) provided on the lower die (200) and a third punching block (1042) provided on the upper die (300); One side surface of the third fixing block (1041) is connected to the lower mold (200), and the lower surface of the third fixing block (1041) is suspended to form an edge wrapping space; The third punching block (1042) comprises two first punching arms, and a punching protrusion (1043) is arranged inside the first punching arm; when pressing the material, the punching protrusion abuts against two sides of the third fixing block (1041).

7. A mold for producing square terminals according to claim 6, characterized in that: The side-pushing and pressing area (105) is provided with a fourth fixing block (1051), a side-pushing arm (1052), and a fourth punching block (1054); The fourth fixing block (1051) and the side push arm (1052) are arranged on the lower mold (200), and the two side push arms (1052) are respectively arranged on both sides of the fourth fixing block (1051), wherein a side push protrusion (1053) is arranged on the inner side of the side push arm (1052); The fourth punching block (1054) is disposed on the lower die (200) and abuts against the upper surfaces of the fourth fixing block (1051) and the side push arm (1052).

8. A mold for producing square terminals according to claim 7, characterized in that: The side push close area (105) is also provided with two top connecting arms (1055), and the top connecting arms (1055) are arranged on the upper mold (300) and located on both sides of the fourth punching block (1054); the top connecting arms (1055) are arranged to abut against the outside of the side push arm (1052).

9. A mold for producing square terminals according to claim 8, characterized in that: The shaping area (106) is provided with a fifth fixing block (1061), a shaping arm (1062), and a fifth punching block (1063); The fifth fixed block (1061) and the shaping arm (1062) are arranged on the lower mold (200), and the two side push arms (1052) are respectively arranged on both sides of the fourth fixed block (1051), and the shaping arm (1062) is provided with a third abutting surface for abutting the workpiece (1000).

10. A mold for producing square terminals according to claim 9, characterized in that: The pretreatment area (107) is provided with a first cutting area (108), a first folding area (109), a second folding area (110), a denting area (111), a second cutting area (112), and a third cutting area (113) in sequence, and the workpiece (1000) is pretreated by the first cutting area (108), the first folding area (109), the second folding area (110), the denting area (111), the second cutting area (112), and the third cutting area (113).

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