CN106238568B - 一种接线端子成型方法 - Google Patents
一种接线端子成型方法 Download PDFInfo
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- CN106238568B CN106238568B CN201610623610.6A CN201610623610A CN106238568B CN 106238568 B CN106238568 B CN 106238568B CN 201610623610 A CN201610623610 A CN 201610623610A CN 106238568 B CN106238568 B CN 106238568B
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- Prior art keywords
- punch
- preforming
- forming
- moulding
- concave die
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- 238000000465 moulding Methods 0.000 claims abstract description 43
- 239000000463 materials Substances 0.000 claims abstract description 32
- 238000004080 punching Methods 0.000 claims abstract description 28
- 281000090753 Pierce Manufacturing companies 0.000 claims abstract description 14
- 239000011135 tin Substances 0.000 claims abstract description 6
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 [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 6
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- 230000000903 blocking Effects 0.000 claims description 3
- 230000037250 Clearance Effects 0.000 claims description 2
- 230000035512 clearance Effects 0.000 claims description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Abstract
本发明涉及一种接线端子成型方法，包括预成型、成型、精冲和向上倒角四步工序，所采用的预成型冲头、预成型凹模、成型冲头、成型凹模和冲孔冲头的表面均进行TiN处理。本发明的成型方法，能最大限度地使得成型材料流向成型凹模四周，防止产品凸包断裂，防止产品表面产生料丝，保证产品尺寸符合图纸要求，保证产品扭力和内壁光亮度合格，实现大批量生产。
Description
一种接线端子成型方法
技术领域
[0001]本发_于_加工觀觀，難为—榊鐵端子成型方法。
背景技术 _2]小鎌麟端子材质为脳飾，厚度为25，该产挪獅分肛艺难点，并且 攻丝后对螺纹有扭力要求，产品内径要求为7.35mm_7.45mm，外径要求为10 • 5±0.13mm，高 度要求j4_8±0_ 15mm，成型部分底面平面度为，为了保证尺寸及扭力合格，成型部分 内壁光亮度必须保证100%。目前，在小安培接线端子的生产中，一般采用翻边成型方法，预 冲孔冲头直径非常小，对于厚度2 • 5mm的黄铜材料，预冲孔冲头寿命非常低并且翻边后端面 存在断裂的风险。 发明内容
[0003]本发明的目的在于克服现有技术中的不足，提供一种接线端子成型方法，可以满 足图纸的尺寸要求，实现大批量生产。
[0004]本发明解决其技术问题是通过以下技术方案实现的：
[0005] —种接线端子成型方法，包括下述步骤：
[0006]第一步，预成型:预成型冲头向下伸入材料中，预成型冲头端部使得成型材料向预 成型凹模四周均匀流动，下型托芯凸台阻挡成型材料向下流动；
[0007] 第二步，成型:成型冲头向下伸入材料中，成型冲头端部使得成型材料迅速向下流 动，下型托芯凸台使得成型材料向成型凹模两侧均匀流动并充满成型凹模，成型冲头对成 型材料端面进行倒角，成型凹模凸台保证成型材料凸包周围平面度；
[0008] 第三步，精冲孔:冲孔冲头向下冲孔；
[0009] 第四步，向上倒角:下型倒角冲头向上倒角。
[0010]所述预成型冲头、预成型凹模、成型冲头、成型凹模和冲孔冲头的表面均进行TiN 处理。
[0011]所述预成型冲头端部角度为157°，预成型冲头端部圆角R〇.8mtn，预成型凹模侧顶 角R0.8mm，下型托芯凸台高度为0.5mm，直径为8.0mm。
[0012] 所述成型冲头端部直径为7.0mm，成型凹模凸台高度为〇.2mm，直径为14.5mra。
[0013] 所述冲孔冲头直径为7 • 45mm，冲裁单面余量为0 • 225mm，冲孔冲头与冲裁凹模的冲 裁间隙为单侧〇.〇4mm。
[0014] 所述下型倒角冲头的直径为7.39mm，下型倒角冲头端部做SR1倒角。
[0015] 本发明的有益效果，该成型方法能最大限度地使得成型材料流向成型凹模四周， 防止产品凸包断裂，防止产品表面产生料丝，保证产品尺寸符合图纸要求，保证产品扭力和 内壁光亮度合格，实现大批量生产。
附图说明
[0016] 图1是预成型工序示意图。
[0017] 图2是成型工序示意图。
[0018]图3是精冲孔工序示意图。
[0019]图4是向上倒角工序示意图。
[0020] 图中标号说明如下：
[0021] 卜预成型冲头；2-预成型凹模;3_下型托芯;4-成型冲头；5-成型凹模;6-冲孔冲 头;7_冲裁凹模;S-下型倒角冲头。
具体实施方式
[0022]下面通过具体实施例对本发明作进一步详述，以下实施例只是描述性的，不是限 定性的，不能以此限定本发明的保护范围。
[0023]如附图所示的接线端子成型方法，包括下述步骤：
[0024]第一步，预成型：
[0025]预成型冲头1向下伸入材料中，预成型冲头端部角度为157。，预成型冲头端部圆角 R0.8mra，预成型凹模2巧顶角RO.Smm，预成型冲头端部使得成型材料向预成型凹模四周均匀 流动，下型托芯3凸台高度为〇. 5mra，直径为8 • 0mm，下型托芯凸台阻挡成型材料向下流动，预 成型冲头和预成型凹模的表面均进行TiN处理。
[0026] 第二步，成型：
[0027]成型冲头4向下伸入材料中，成型冲头端部直径为7.0mm，成型冲头端部使得成型 材料迅速向下流动，成型凹模5凸台高度为〇.2mm，直径为14.5ram，下型托芯凸台使得成型材 料向成型凹模两侧均匀流动并充满成型凹模，成型冲头对成型材料端面进行倒角，防止攻 丝后表面产生料丝，成型凹模凸台保证成型材料凸包周围平面度，成型冲头和成型凹模的 表面均进行TiN处理。
[0028] 第三步，精冲孔：
[0029]冲孔冲头6向下冲孔，冲孔冲头直径为7.45_，冲裁单面余量为0.225mm，冲孔冲头 与冲裁凹模7的冲裁间隙为单侧〇 • 〇4mm，保证底孔内壁光亮度85 %以上，冲孔冲头的表面进 行TiN处理。
[0030] 第四步，向上倒角：
[0031]下型倒角冲头8向上倒角，既去除内壁断裂带部分，又避免攻丝后表面出现料丝， 下型倒角冲头的直径为7.39ram，下型倒角冲头端部做SR1倒角，方便伸入底孔内。
[0032]以上对本发明的技术方案做了示例性的描述，应该说明的是，在不脱离本技术方 案的核心的情况下，任何简单的变形、修改或者其他本领域技术人员能够不花费创造性劳 动的等同替换均落入本专利的保护范围。
Claims (1)
1. 一种接线端子成型方法，其特征在于： 第-步，预成型:预成型冲头向下伸入材料中，预成型冲头端部使得成型材料向预成型 凹棚周均诚动，下麵S凸台阻挡_材料向H力，臓麗婦头端部角度为 157%预成型冲头端部圆角RO.Srnn，预成型凹模侧顶角肋.8麵，下型托芯凸台高度为〇5臟， 直径为8. Omm; 第二步，成型:成型冲头向下伸入材料中，成型冲头端部使得成型材料迅速向下流动， 下型托芯凸台使得成型材料向成型凹模两侧均匀流动并充满成型凹模，成型冲头对成型材 料端面进行倒角，成型凹模凸台保证成型材料凸包周围平面度，所述成型冲头端部直径为 7.0mm，成型凹模凸台高度为0.2mm，直径为14.5mm; 第三步，精冲孔：冲孔冲头向下冲孔，所述冲孔冲头直径为7.45mm，冲裁单面余量为 0.225mm，冲孔冲头与冲裁凹模的冲裁间隙为单侧〇. 〇4mm; 第四步，向上倒角：下型倒角冲头向上倒角，所述下型倒角冲头的直径为7 • 39圆，下型 倒角冲头端部做SR1倒角； 所述预成型冲头、预成型凹模、成型冲头、成型凹模和冲孔冲头的表面均进行TiN处理。
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| CN203853457U (zh) * | 2014-03-20 | 2014-10-01 | 成都联创精密机械有限公司 | 一种顶料型落料冲孔复合模 |
| CN104384322A (zh) * | 2014-09-12 | 2015-03-04 | 武汉理工大学 | 一种板料精冲挤压复合凸台零件的成形工艺 |
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| CN203853457U (zh) * | 2014-03-20 | 2014-10-01 | 成都联创精密机械有限公司 | 一种顶料型落料冲孔复合模 |
| CN104384322A (zh) * | 2014-09-12 | 2015-03-04 | 武汉理工大学 | 一种板料精冲挤压复合凸台零件的成形工艺 |
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