CN208378734U - 一种石墨灯模 - Google Patents
一种石墨灯模 Download PDFInfo
- Publication number
- CN208378734U CN208378734U CN201820908992.1U CN201820908992U CN208378734U CN 208378734 U CN208378734 U CN 208378734U CN 201820908992 U CN201820908992 U CN 201820908992U CN 208378734 U CN208378734 U CN 208378734U
- Authority
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- China
- Prior art keywords
- lamp
- membrane body
- hole
- graphite
- diameter
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
本实用新型提供一种石墨灯模。本实用新型包括:灯膜本体和镶嵌于所述灯膜本体内部的衬套,所述灯模本体上下两侧均开设规格相同的预设弧面,所述灯膜本体正中间开设直径为d1的通孔,所述通孔两端开设直径为d2的大口径开口,所述大口径开口处镶嵌所述衬套,所述通孔与所述大口径开口满足如下关系:d2/2≤d1<d2,衬套本体内径为d3,其靠近所述灯膜本体中心侧的内径与所述通孔直径相同。本实用新型两端开设大口径开口,中间部位开设过渡孔,通过镶嵌衬套的方式解决了加工位置偏差大、尺寸公差和不易加工的问题,提高了加工良品率,降低了加工成本。
Description
技术领域
本实用新型涉及石墨模具制备领域,尤其涉及一种石墨灯模。
背景技术
模具是工业生产中使用极为广泛的基础工艺装备,模具工业是国民经济的基础工业。在现代工业生产中,产品零件广泛采用冲压、锻压成形、压铸成形、挤压成形、塑料注射或其它成形加工方法,与成形模具相配套,使坯料成形加工成符合产品要求的零件。我们日常生产、生活中所使用到的各种工具和产品,大到机床的底座、机身外壳,小到一个胚头螺丝、纽扣以及各种家用电器的外壳,无不与模具有着密切的关系。模具的形状决定着这些产品的外形,模具的加工质量与精度也就决定着这些产品的质量。近年模具行业飞速发展,石墨材料、新工艺和不断增加的模具工厂不断冲击着模具市场,石墨以其良好的物理和化学性能逐渐成为模具制作的首选材料。
现有的石墨灯模中心定位孔因长度过长,加工时如从一端加工,经常会出现模具一端位置、尺寸公差合格,另一端位置偏差、尺寸公差上下限或超差不合格的情况,如从两端加工则易出现孔中间部位出现段差,导致加工出现废品和客户成型产品质量不稳定或不合格的现象。
实用新型内容
根据上述提出的技术问题,而提供一种两端开口口径大、中间过渡孔小的石墨灯模。本实用新型采用的技术手段如下:
一种石墨灯模,包括灯膜本体和镶嵌于所述灯膜本体内部的衬套,所述灯模本体上下两侧均开设规格相同的预设弧面,所述灯膜本体正中间开设直径为d1的通孔,所述通孔两端开设直径为d2的大口径开口,所述大口径开口处镶嵌所述衬套,
所述通孔与所述大口径开口尺寸满足如下关系:d2/2≤d1<d2,
衬套本体内径为d3,其靠近所述灯膜本体中心侧的内径与所述通孔直径相同。
进一步地,在竖直面内,圆弧面距离所述通孔中心距离数值最小的点两侧的弧长不同,弧长较长侧的端点到灯膜本体靠近其侧的侧边的距离为L1,弧长较短侧的端点到灯膜本体靠近其侧的侧边的距离为L2,二者满足如下关系:L1<L2。
进一步地,所述圆弧面距离所述通孔中心距离数值最小的点到所述通孔中心的距离为L3,L3>d2。
进一步地,所述弧长较长侧的端点所在灯模主体侧的宽为H1,所述弧长较短侧的端点所在灯模主体侧的宽为H2,H1>H2,H1-H2>L2-L1。
进一步地,所述灯膜本体各角均做倒角处理。
进一步地,所述灯膜本体其中一个预设弧面进行表面抛光处理。
本实用新型两端开设大口径开口,中间部位开设过渡孔,通过镶嵌衬套的方式解决了加工位置偏差大、尺寸公差和不易加工的问题,提高了加工良品率,降低了加工成本,基于上述理由本实用新型可在石墨模具制备领域广泛推广。
附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图做以简单地介绍,显而易见地,下面描述中的附图是本实用新型的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为本实用新型灯膜本体示意图。
图2为本实用新型衬套示意图。
图中:1、通孔;2、大口径开口。
具体实施方式
为使本实用新型实施例的目的、技术方案和优点更加清楚,下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。
如图1、图2所示,一种石墨灯模,包括灯膜本体和镶嵌于所述灯膜本体内部的衬套,所述灯模本体上下两侧均开设规格相同的预设弧面,所述灯膜本体正中间开设直径为d1的通孔1,所述通孔两端开设直径为d2的大口径开2口,所述大口径开口2处镶嵌所述衬套,
所述通孔1与所述大口径开口2尺寸满足如下关系:d2/2≤d1<d2,
衬套本体内径为d3,其靠近所述灯膜本体中心侧的内径与所述通孔直径相同。
在竖直面内,圆弧面距离所述通孔1中心距离数值最小的点两侧的弧长不同,弧长较长侧的端点到灯膜本体靠近其侧的侧边的距离为L1,弧长较短侧的端点到灯膜本体靠近其侧的侧边的距离为L2,二者满足如下关系:L1<L2。
所述圆弧面距离所述通孔1中心距离数值最小的点到所述通孔1中心的距离为L3,L3>d2。
所述弧长较长侧的端点所在灯模主体侧的宽为H1,所述弧长较短侧的端点所在灯模主体侧的宽为H2,H1>H2,H1-H2>L2-L1。
所述灯膜本体各角均做倒角处理。所述灯膜本体其中一个预设弧面进行表面抛光处理。
最后应说明的是:以上各实施例仅用以说明本实用新型的技术方案,而非对其限制;尽管参照前述各实施例对本实用新型进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本实用新型各实施例技术方案的范围。
Claims (6)
1.一种石墨灯模,其特征在于,包括灯膜本体和镶嵌于所述灯膜本体内部的衬套,所述灯模本体上下两侧均开设规格相同的预设弧面,所述灯膜本体正中间开设直径为d1的通孔,所述通孔两端开设直径为d2的大口径开口,所述大口径开口处镶嵌所述衬套,
所述通孔与所述大口径开口尺寸满足如下关系:d2/2≤d1<d2,
衬套本体内径为d3,其靠近所述灯膜本体中心侧的内径与所述通孔直径相同。
2.根据权利要求1所述的石墨灯模,其特征在于,在竖直面内,弧面距离所述通孔中心距离数值最小的点两侧的弧长不同,弧长较长侧的端点到灯膜本体靠近其侧的侧边的距离为L1,弧长较短侧的端点到灯膜本体靠近其侧的侧边的距离为L2,二者满足如下关系:L1<L2。
3.根据权利要求1所述的石墨灯模,其特征在于,所述弧面距离所述通孔中心距离数值最小的点到所述通孔中心的距离为L3,L3>d2。
4.根据权利要求2所述的石墨灯模,其特征在于,所述弧长较长侧的端点所在灯模主体侧的宽为H1,所述弧长较短侧的端点所在灯模主体侧的宽为H2,H1>H2,H1-H2>L2-L1。
5.根据权利要求1所述的石墨灯模,其特征在于,所述灯膜本体各角均做倒角处理。
6.根据权利要求1所述的石墨灯模,其特征在于,所述灯膜本体其中一个预设弧面进行表面抛光处理。
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