CN204135180U - Garter spring bending die - Google Patents

Garter spring bending die Download PDF

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Publication number
CN204135180U
CN204135180U CN201420522572.1U CN201420522572U CN204135180U CN 204135180 U CN204135180 U CN 204135180U CN 201420522572 U CN201420522572 U CN 201420522572U CN 204135180 U CN204135180 U CN 204135180U
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mandrel
module
wedge
bending die
garter spring
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邓汝荣
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Guangzhou Vocational College of Science and Technology
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Guangzhou Vocational College of Science and Technology
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Abstract

本实用新型公开了一种箍环弯曲模,包括相互配合的上模和下模;所述上模包括上模板,分别安装于所述上模板两侧的压块,以及连接于所述上模板中部的圆柱状芯轴,且所述芯轴突出于所述压块;所述下模包括下模板,分别固定于所述下模板两侧相对的斜楔,设置于每个所述斜楔斜面上的模块,以及与模块连接的弹性支撑机构,所述弹性支撑机构与下模板连接;两个相对的所述模块之间具有空隙,形成相互连通的工作带和弧形型腔,且所述型腔与芯轴外形配合。通过该箍环弯曲模,能一次将杆条状毛坯件挤压弯折成箍环,模具结构简单制作方便,减少了加工工艺,提高了工作效率。

The utility model discloses a hoop ring bending die, which comprises an upper die and a lower die matched with each other; the upper die includes an upper die, pressing blocks respectively installed on both sides of the upper die, and a a cylindrical mandrel in the middle, and the mandrel protrudes from the press block; the lower mold includes a lower template, which are respectively fixed to opposite wedges on both sides of the lower template, and are arranged on each of the wedge slopes The upper module, and the elastic support mechanism connected with the module, the elastic support mechanism is connected with the lower template; there is a gap between the two opposite modules, forming a working belt and an arc-shaped cavity connected to each other, and the said The cavity matches the shape of the mandrel. The hoop bending die can extrude and bend the bar-shaped blank into a hoop at one time, the mold structure is simple and convenient to manufacture, the processing technology is reduced, and the working efficiency is improved.

Description

箍环弯曲模hoop bending die

技术领域technical field

本实用新型涉及冲压模具领域,特别涉及一种箍环弯曲模。The utility model relates to the field of stamping dies, in particular to a hoop bending die.

背景技术Background technique

箍环零件在工业结构件及五金结构件中都很常见,但其传统的加工方法要通过3~4道工序才能成形。其加工过程中,一方面要利用3~4套成形模具及3~4台冲床,而每套模具与冲床则需要配备一名操作工,生产成本较大,也无法满足大批量的生产需求。另一方面,成形的工序越多,则产品的尺寸精度将越低,甚至于出现较多的废品。传统技术中最主要、最关键的技术问题:工序多,成本高,效率低;尺寸精度低,易出现废品。而且增加了生产现场的管理难度,产品在工序转移过程中,易发生碰撞,损害产品的质量。Hoop parts are very common in industrial structural parts and hardware structural parts, but their traditional processing methods require 3 to 4 processes to form. During the processing, on the one hand, 3 to 4 sets of forming dies and 3 to 4 punching machines are used, and each set of molds and punching machines needs to be equipped with an operator. The production cost is relatively high, and it cannot meet the needs of mass production. On the other hand, the more forming processes, the lower the dimensional accuracy of the product, and even more waste products. The main and most critical technical problems in traditional technology: many processes, high cost, low efficiency; low dimensional accuracy, prone to waste products. Moreover, the management difficulty of the production site is increased, and the products are prone to collision during the process of process transfer, which will damage the quality of the product.

发明内容Contents of the invention

基于此,为解决上述箍环加工工序过多的问题,本实用新型提供一种箍环弯曲模。Based on this, in order to solve the problem of too many hoop processing steps, the utility model provides a hoop bending die.

其技术方案如下:Its technical scheme is as follows:

一种箍环弯曲模,包括相互配合的上模和下模;所述上模包括上模板,分别安装于所述上模板两侧的压块,以及连接于所述上模板中部的圆柱状芯轴,且所述芯轴突出于所述压块;所述下模包括下模板,分别固定于所述下模板两侧相对的斜楔,设置于每个所述斜楔斜面上的模块,以及与两侧模块连接的弹性支撑机构,所述弹性支撑机构与下模板连接;两个相对的所述模块之间具有空隙,形成相互连通的工作带和弧形型腔,且所述型腔与芯轴外形匹配。A hoop bending die, comprising an upper die and a lower die that cooperate with each other; the upper die includes an upper template, pressure blocks respectively installed on both sides of the upper template, and a cylindrical core connected to the middle of the upper template shaft, and the mandrel protrudes from the pressing block; the lower mold includes a lower template, respectively fixed on opposite oblique wedges on both sides of the lower template, a module arranged on each inclined surface of the oblique wedge, and The elastic support mechanism connected with the modules on both sides, the elastic support mechanism is connected with the lower formwork; there is a gap between the two opposite modules, forming a working belt and an arc-shaped cavity connected to each other, and the cavity and the The mandrel profile matches.

毛坯件放置在对齐的两个模块上,该毛坯件的中部对准型腔部位,而芯轴对准毛坯件的中间部位。在非工作状态下,弹性支撑机构能托住模块和毛坯件保持静止;工作时,上模在外力作用下向模块方向下压,上模上的压块在下压过程中会在模块处将毛坯件弯曲成U形;上模压块继续下压,压块会开始压迫模块沿着斜楔斜面下滑,会将弹性支撑机构压下,两个模块之间的间隙减小,模块会继续弯曲挤压U形的毛坯件,此时芯轴也继续下行到型腔中,型腔会对U形毛坯件的半圆端进行挤压进一步成形;上模继续下压,直到两个模块下行到与芯轴部分近似重合,在压块和模块的挤压弯曲作用下,U形毛坯件的开口部也被挤压成圆弧形,毛坯件完全弯曲包裹在芯轴表面,从而将毛坯件加工成一个完整的箍环。The blank is placed on the aligned two modules, the middle of the blank is aligned with the cavity and the mandrel is aligned with the middle of the blank. In the non-working state, the elastic support mechanism can hold the module and the blank to keep still; when working, the upper die presses down towards the module under the action of external force, and the pressing block on the upper die will press the blank at the module during the pressing process. The piece is bent into a U shape; the pressing block of the upper mold continues to press down, and the pressing block will start to press the module to slide down along the slope of the wedge, and will press down the elastic support mechanism, the gap between the two modules will be reduced, and the module will continue to bend and squeeze For a U-shaped blank, the mandrel continues to go down into the cavity, and the cavity will squeeze the semicircular end of the U-shaped blank for further forming; the upper mold continues to press down until the two modules go down to meet the mandrel The parts are approximately coincident. Under the extrusion and bending action of the pressing block and the module, the opening of the U-shaped blank is also extruded into a circular arc shape, and the blank is completely bent and wrapped on the surface of the mandrel, so that the blank is processed into a complete hoops.

下面对一种技术方案进行进一步说明:A technical solution is further described below:

优选的是,所述上模还包括芯轴连接件,所述芯轴连接件一端连接芯轴端部而另一端连接上模板。利用连接件从端部将芯轴和上模板连接,使外力作用在上模板上时,可以推动芯轴往下运动,而且芯轴在进入型腔中毛坯件受到挤压弯曲的过程中,芯轴连接件可以一直位于下模的外部,不会与下模结构发生干涉,保证了箍环成形顺利进行。Preferably, the upper mold further includes a mandrel connecting piece, one end of the mandrel connecting piece is connected to the end of the mandrel and the other end is connected to the upper template. Connect the mandrel and the upper template from the end with the connecting piece, so that when the external force acts on the upper template, the mandrel can be pushed down, and when the mandrel enters the cavity and the blank is squeezed and bent, the core The shaft connecting piece can always be located outside the lower die, and will not interfere with the lower die structure, ensuring smooth hoop forming.

优选的是,所述上模还包括凸板,所述凸板连接设置于所述芯轴和上模板间。在芯轴上方设置凸板,方便在最后形成箍环的弯折部。凸板能保持毛坯件在挤压弯曲的过程中,毛坯件的端部始终保持分离,从而在箍环的端部形成突出的弯折部。Preferably, the upper mold further includes a convex plate, and the convex plate is connected between the mandrel and the upper mold. A raised plate is provided above the mandrel to facilitate the final formation of the bend of the hoop. The protruding plate can keep the end of the blank always separated during extrusion bending, thereby forming a protruding bent portion at the end of the hoop.

优选的是,所述上模板上还设置有模柄。通过设置模柄,可以方便地对上模板施加压力,使芯轴和压块下压。Preferably, a mold handle is also provided on the upper template. By setting the mold shank, it is convenient to apply pressure to the upper template, so that the mandrel and the briquetting block are pressed down.

优选的是,所述弹性支撑结构包括支撑两个模块的托板,与所述托板连接的至少一根顶杆,与所述顶杆连接的下推板,以及安装于所述下推板下的弹簧。该弹性支撑结构形成弹顶装置,在非工作状态和能给工作初期能为模块提供支撑,方便将毛坯件挤压弯曲成U形;工作结束后,上模对下模施加的压力撤掉时,该弹顶装置能将模块复位,即将两模块撑开,方便将芯轴和成形的箍环移取出。Preferably, the elastic support structure includes a pallet supporting two modules, at least one push rod connected to the pallet, a lower push plate connected to the push rod, and a down the spring. The elastic support structure forms a spring top device, which can provide support for the module in the non-working state and at the beginning of the work, so as to facilitate the extrusion and bending of the blank into a U shape; after the work is over, when the pressure exerted by the upper die on the lower die is removed , the pop-up device can reset the module, that is, to spread the two modules, so that the mandrel and the formed hoop can be removed conveniently.

优选的是,所述下模还包括设置在所述斜楔和模块外侧的封板,所述斜楔与所述封板固定连接;所述封板上设置有滑槽,所述滑槽与斜楔的斜面方向保持一致,且所述模块通过滑槽与所述封板活动连接。利用封板可以将斜楔和模块进行限位固定,防止模块受压时从侧边滑出,并且通过在封板上设置滑槽,能够使模块依然能在斜楔的斜面上自由滑动。Preferably, the lower die also includes a sealing plate arranged on the outside of the wedge and the module, the wedge is fixedly connected to the sealing plate; a chute is provided on the sealing plate, and the chute is connected to the The direction of the inclined plane of the oblique wedge is consistent, and the module is movably connected with the sealing plate through the slide groove. The sealing plate can be used to limit and fix the wedge and the module to prevent the module from sliding out from the side when it is under pressure, and by setting a slide groove on the sealing plate, the module can still slide freely on the slope of the wedge.

优选的是,每个所述斜楔斜面上设置凹槽,所述模块活动安装于此凹槽中。另外,还可通过在斜楔斜面上设置凹槽的形式,使模块在凹槽中滑动,同时起到滑轨和限位槽的作用。Preferably, a groove is provided on the inclined surface of each wedge, and the module is movably installed in the groove. In addition, the module can also slide in the groove by providing a groove on the inclined surface of the wedge, and simultaneously play the role of the slide rail and the limiting groove.

优选的是,所述下模还包括一端固定在所述斜楔上而另一端覆盖在所述模块上的定位板。通过在下模的上面设置定位板,能够从上面对模块进行定位,避免模块由于弹性支撑机构的弹力作用而滑出。另外,也能对放置在模块上的毛坯件从两端进行限位。Preferably, the lower mold further includes a positioning plate whose one end is fixed on the wedge and the other end covers the module. By arranging the positioning plate on the top of the lower mold, the module can be positioned from above, preventing the module from sliding out due to the elastic force of the elastic support mechanism. In addition, it is also possible to limit the blanks placed on the module from both ends.

本实用新型具有如下益效果:The utility model has the following beneficial effects:

1、将传统的多道工序减少为一道工序,减少工艺流程,提高生产效率;1. Reduce the traditional multiple processes into one process, reduce the process flow and improve production efficiency;

2、将多套模具减少为一套,使模具制作简单,操作方便;2. Reduce multiple sets of molds to one set, making the mold production simple and easy to operate;

3、减少了模具,减少了操作工,从而降低了成本;3. Reduce the number of molds and operators, thereby reducing the cost;

4、适用于各种卷圆零件,适用范围广。4. It is suitable for all kinds of round parts and has a wide range of applications.

附图说明Description of drawings

图1是本实用新型实施例所述箍环弯曲模的局部剖视示意图;Fig. 1 is a partial cross-sectional schematic diagram of the hoop bending die described in the embodiment of the present invention;

图2是图1的左视示意图;Fig. 2 is a schematic left view of Fig. 1;

图3是本实用新型实施例所述箍环弯曲模的芯轴与毛坯件接触时的示意图;Fig. 3 is a schematic diagram when the mandrel of the hoop bending die described in the embodiment of the present invention is in contact with the blank;

图4是本实用新型实施例所述箍环弯曲模的芯轴将毛坯件压成U形时的示意图;Fig. 4 is a schematic diagram when the mandrel of the hoop bending die described in the embodiment of the present invention presses the blank into a U shape;

图5是本实用新型实施例所述箍环弯曲模的两模块挤压折弯毛坯件时的示意图;Fig. 5 is a schematic diagram of two modules of the hoop bending die described in the embodiment of the present invention when extruding and bending the blank;

图6是本实用新型实施例所述箍环弯曲模的两模块闭合弯曲成形箍环时的示意图;Fig. 6 is a schematic diagram of the two modules of the hoop bending die described in the embodiment of the present invention when they are closed to bend and form the hoop;

图7是本实用新型实施例所述成形箍环的示意图。Fig. 7 is a schematic view of the forming hoop according to the embodiment of the present invention.

附图标记说明:100-上模,110-模柄,120-上模板,130-压块,140-芯轴连接件,150-芯轴,152-芯轴锁紧螺钉,160-凸板,170-凸板固定板,200-下模,210-下模板,212-凸缘,220-斜楔,230-模块,232-型腔,234-工作带,240-封板,242-滑槽,250-托板,252-顶杆,260-下推板,270-弹簧,280-定位板,300-箍环,310-箍环弯折部,400-毛坯件。Explanation of reference signs: 100-upper die, 110-die handle, 120-upper template, 130-briquetting block, 140-mandrel connector, 150-mandrel, 152-mandrel locking screw, 160-convex plate, 170-convex plate fixing plate, 200-lower mold, 210-lower template, 212-flange, 220-wedge, 230-module, 232-cavity, 234-working belt, 240-sealing plate, 242-chute , 250-pallet, 252-rod, 260-down push plate, 270-spring, 280-positioning plate, 300- hoop, 310- hoop bending part, 400- blank.

具体实施方式Detailed ways

下面对本实用新型的实施例进行详细说明:Embodiments of the present utility model are described in detail below:

如图1至图2所示,一种箍环弯曲模,包括相互配合的上模100和下模200。该上模100包括上模板120,分别安装于上模板120两侧的压块130,以及连接于上模板120中部的圆柱状芯轴150,且芯轴150突出于压块130。上模板120上还设置有模柄110。通过设置模柄110,可以方便地对上模板120施加压力,使芯轴150和压块130下压。As shown in FIGS. 1 to 2 , a hoop bending mold includes an upper mold 100 and a lower mold 200 that cooperate with each other. The upper mold 100 includes an upper mold 120 , pressing blocks 130 mounted on both sides of the upper mold 120 , and a cylindrical mandrel 150 connected to the middle of the upper mold 120 , and the mandrel 150 protrudes from the pressing blocks 130 . A mold handle 110 is also provided on the upper template 120 . By setting the mold handle 110, it is convenient to apply pressure to the upper mold plate 120, so that the mandrel 150 and the pressure block 130 are pressed down.

该下模200包括下模板210,分别固定于下模板210两侧相对的斜楔220。而且,下模板210的两端还设置有凸缘212,用于从两侧卡住斜楔220,可对斜楔220进行限位,另外用螺钉从下模板210下方将斜楔220进行固定。此外,每个斜楔220具有一个斜面,两个斜楔220的斜面相对,形成一个上大下小的梯形开口。此处的斜面倾斜角度可以根据实际情况进行调整,本实施例中优选50度的倾斜角。下模200还包括设置于每个斜楔220斜面上的模块230,每个与斜楔220配合的模块230也都设置有一个与斜楔斜面配合的模块斜面,使模块230能沿着斜楔220的斜面自由滑动。下模200还设置有与两侧模块230连接的弹性支撑机构,具体地该弹性支撑机构支撑于两模块230下方,且该弹性支撑机构与下模板210连接。两个相对的模块230之间具有空隙,形成相互连通的工作带234和弧形型腔232,且型腔232与芯轴150的外形匹配。此外,还可以在工作带和型腔壁上开设凹槽,工作时能刚好将毛坯件镶嵌于所述凹槽中,对毛坯件进行定位,避免挤压弯曲过程中毛坯件走形。The lower mold 200 includes a lower template 210 respectively fixed to opposite wedges 220 on two sides of the lower template 210 . Moreover, the two ends of the lower template 210 are also provided with flanges 212 for clamping the wedges 220 from both sides to limit the position of the wedges 220 , and fixing the wedges 220 from below the lower template 210 with screws. In addition, each oblique wedge 220 has an inclined surface, and the oblique surfaces of the two oblique wedges 220 face each other to form a trapezoidal opening with a larger top and a smaller bottom. The inclination angle of the slope here can be adjusted according to the actual situation, and an inclination angle of 50 degrees is preferred in this embodiment. The lower mold 200 also includes a module 230 arranged on the inclined surface of each wedge 220, and each module 230 matched with the inclined wedge 220 is also provided with a module inclined surface matched with the inclined surface of the inclined wedge, so that the module 230 can move along the inclined surface of the inclined wedge. The slope of 220 slides freely. The lower mold 200 is also provided with an elastic support mechanism connected to the modules 230 on both sides. Specifically, the elastic support mechanism is supported under the two modules 230 , and the elastic support mechanism is connected to the lower mold plate 210 . There is a gap between two opposite modules 230 , forming a working belt 234 and an arc-shaped cavity 232 that communicate with each other, and the cavity 232 matches the shape of the mandrel 150 . In addition, grooves can also be provided on the working belt and the cavity wall, and the blank can just be embedded in the groove during work, and the blank can be positioned to avoid deformation of the blank during extrusion and bending.

该箍环弯曲模的上模100还包括芯轴连接件140,该芯轴连接件140一端连接芯轴端部而另一端连接上模板120。利用连接件从端部将芯轴150和上模板120连接,使外力作用在上模板120上时,可以推动芯轴150往下运动,而且芯轴150在进入型腔232中毛坯件400受到挤压弯曲的过程中,芯轴连接件140可以一直位于下模200的外部,不会与下模结构发生干涉,保证了箍环300成形顺利进行。具体地,芯轴150通过芯轴锁紧螺钉152和锁紧螺母安装固定于芯轴连接件140一端部,而芯轴连接件140另一端部通过螺钉连接于上模板120,简单方便。此处的芯轴连接件140为一支承板。The upper mold 100 of the hoop bending mold further includes a mandrel connecting piece 140 , one end of the mandrel connecting piece 140 is connected to the end of the mandrel and the other end is connected to the upper template 120 . The mandrel 150 is connected with the upper die plate 120 from the end by a connecting piece, so that when an external force acts on the upper die plate 120, the mandrel 150 can be pushed downward, and the blank 400 is squeezed when the mandrel 150 enters the cavity 232. During the bending process, the mandrel connector 140 can always be located outside the lower die 200 without interfering with the lower die structure, which ensures smooth forming of the hoop 300 . Specifically, the mandrel 150 is mounted and fixed on one end of the mandrel connector 140 through the mandrel locking screw 152 and the lock nut, and the other end of the mandrel connector 140 is connected to the upper template 120 through a screw, which is simple and convenient. The mandrel connection 140 here is a support plate.

此外,该上模100还包括凸板160,该凸板160连接设置于芯轴150和上模板120间。在芯轴150上方设置凸板160,利于在最后形成箍环弯折部310。凸板160能使毛坯件400在挤压弯曲的过程中,保持毛坯件400的端部始终处于分离状态,从而在箍环300的端部形成突出的箍环弯折部310。而且,凸板160连接于上模板120下方,位于芯轴150的正上方,并在凸板160的两侧还分别设置有凸板固定板170,该凸板固定板170通过螺钉连接固定在上模板120上,从两边将凸板160固定住,便于成形箍环300伸出端的箍环弯折部310。In addition, the upper mold 100 further includes a protruding plate 160 connected between the mandrel 150 and the upper mold 120 . Providing the raised plate 160 above the mandrel 150 facilitates the final formation of the hoop bend 310 . The protruding plate 160 can keep the end of the blank 400 in a separated state during the extrusion bending process of the blank 400 , thereby forming a protruding hoop bend 310 at the end of the hoop 300 . Moreover, the convex plate 160 is connected below the upper template 120 and is located directly above the mandrel 150, and the convex plate fixing plates 170 are respectively arranged on both sides of the convex plate 160, and the convex plate fixing plates 170 are fixed on the upper mold plate by screw connection. On the formwork 120 , the protruding plates 160 are fixed from both sides, so as to facilitate the forming of the hoop bending portion 310 at the protruding end of the hoop 300 .

而且,该箍环弯曲模的下模200上设置的弹性支撑结构,其包括支撑两个模块230的托板240,与托板250连接的至少一根顶杆252,与顶杆252连接的下推板260,以及安装于下推板260下的弹簧270。通过托板250托起模块230,并在弹簧270的作用下,给模块230施加一个向上的预紧弹力,使模块230不会轻易下滑,另外通过设置下推板260和多根顶杆252,使托板250受力更均匀,使两侧的模块230均能保持良好的稳定性,不会出现两侧模块230受力不均,而导致一边模块230下滑而另一边模块230卡住(或移动速度不同)的情况发生,而影响箍环300的成形。该弹性支撑结构形成弹顶装置,在非工作状态和能给工作初期能为模块230提供支撑,利于将毛坯件400挤压弯曲成U形;工作结束后,上模100对下模200施加的压力撤掉时,在弹力作用下该弹顶装置能将模块230复位,即将两模块230撑开,方便将芯轴150和成形的箍环300移取出。而且,该弹性支撑结构的弹簧270可以连接设置于下模板210上表面,下推板260和顶杆252均设置在下模板210和托板250之间;另外,该弹簧270和下推板260均可以设置于下模板210下方,并且弹簧270与外部结构连接固定,顶杆252穿过所述下模板210并能自由移动。Moreover, the elastic support structure provided on the lower die 200 of the hoop bending die includes a supporting plate 240 supporting two modules 230, at least one ejector rod 252 connected with the supporting plate 250, and a lower ejector rod 252 connected with the ejector rod 252. Push pedal 260, and the spring 270 installed under the lower push pedal 260. The module 230 is supported by the supporting plate 250, and under the action of the spring 270, an upward pre-tightening elastic force is applied to the module 230, so that the module 230 will not slide down easily. In addition, by setting the lower push plate 260 and a plurality of push rods 252, Make the supporting plate 250 more uniform in force, so that the modules 230 on both sides can maintain good stability, and there will be no uneven force on the modules 230 on both sides, which will cause the module 230 on one side to slide and the module 230 on the other side to get stuck (or The situation that the moving speed is different) occurs, which affects the forming of the hoop 300. The elastic support structure forms a spring top device, which can provide support for the module 230 in the non-working state and at the beginning of the work, which is beneficial to extruding and bending the blank 400 into a U shape; When the pressure is removed, the pop-up device can reset the module 230 under the action of elastic force, that is, the two modules 230 will be stretched apart, so that the mandrel 150 and the formed hoop 300 can be removed conveniently. Moreover, the spring 270 of the elastic support structure can be connected and arranged on the upper surface of the lower template 210, and the lower push plate 260 and the push rod 252 are all arranged between the lower template 210 and the supporting plate 250; It can be arranged under the lower template 210, and the spring 270 is connected and fixed with the external structure, and the push rod 252 passes through the lower template 210 and can move freely.

此外,该下模200还包括设置在斜楔220和模块230外侧的封板240,斜楔220与封板240固定连接,具体是通过多个封板螺钉将封板240固定在斜楔220上。而且,封板240上还设置有滑槽242,该滑槽242与斜楔220的斜面方向保持一致,且模块230通过滑槽242与封板240活动连接,具体是通过在模块230上设置导滑螺钉(图中未标示出)并连接在封板240的滑槽242中来实现,模块230在移动时,导滑螺钉在滑槽242中滑动。利用封板240可以将斜楔220和模块230进行限位固定,防止模块230受压时从侧边滑出,并且通过在封板240上设置滑槽242,能够使模块230依然能在斜楔220的斜面上自由滑动。在下模200的两侧均设置有封板240,从两侧对斜楔220和模块230进行限位。并且,每一侧均可设置两块分开的封板240,使两个模块230之间形成的型腔232与外界保持连通,方便芯轴150进出型腔232,而不会与模块230或封板240产生干涉。In addition, the lower mold 200 also includes a sealing plate 240 arranged on the outside of the wedge 220 and the module 230, the wedge 220 is fixedly connected with the sealing plate 240, specifically, the sealing plate 240 is fixed on the wedge 220 by a plurality of sealing plate screws . Moreover, the sealing plate 240 is also provided with a chute 242, the chute 242 is consistent with the direction of the slope of the wedge 220, and the module 230 is movably connected with the sealing plate 240 through the chute 242, specifically by setting the guide on the module 230. The sliding screw (not shown in the figure) is connected in the sliding groove 242 of the sealing plate 240 to realize that, when the module 230 moves, the guiding sliding screw slides in the sliding groove 242 . The sealing plate 240 can be used to limit and fix the wedge 220 and the module 230 to prevent the module 230 from sliding out from the side when it is under pressure, and by setting the chute 242 on the sealing plate 240, the module 230 can still be placed on the wedge. 220 slide freely on the slope. Both sides of the lower mold 200 are provided with sealing plates 240 to limit the wedge 220 and the module 230 from both sides. And, each side can be provided with two separate sealing plates 240, so that the cavity 232 formed between the two modules 230 is kept in communication with the outside world, so that the mandrel 150 can pass in and out of the cavity 232 without contact with the module 230 or the sealing plate. Plate 240 interferes.

另外,还可以在每个斜楔220的斜面上设置凹槽,并将模块230活动安装于此凹槽中。即可通过在斜楔斜面上设置凹槽的形式,使模块230在凹槽中滑动,此时凹槽同时起到滑轨和限位槽的作用。通过这种方式,可以不需要再在封板240上设置滑槽242连接模块230,只需通过凹槽对模块230进行限位。此外,还可结合上述两种情况,即同时利用斜楔220的凹槽和封板240上的滑槽242来对模块230进行限位。In addition, a groove can also be provided on the slope of each wedge 220, and the module 230 can be movably installed in the groove. That is, the module 230 can slide in the groove by providing a groove on the inclined surface of the wedge, and the groove simultaneously functions as a slide rail and a limiting groove. In this way, there is no need to set the slide groove 242 on the sealing plate 240 to connect the module 230, and only need to limit the module 230 through the groove. In addition, the above two situations can also be combined, that is, the groove of the wedge 220 and the sliding groove 242 on the sealing plate 240 are used to limit the position of the module 230 at the same time.

此外,下模200还包括一端固定在斜楔220上而另一端覆盖在模块230上的定位板280。通过在下模200的上表面设置定位板280,能够从上表面对模块230进行定位,避免模块230由于弹性支撑机构的弹力作用而滑出。在下模200的两端均设置有定位板280,方便对两边的模块230进行限位,同时也能对放置在模块230上的毛坯件400进行限位。定位板280可通过固定螺钉安装于斜楔220上表面。In addition, the lower mold 200 also includes a positioning plate 280 with one end fixed on the wedge 220 and the other end covering the module 230 . By setting the positioning plate 280 on the upper surface of the lower mold 200, the module 230 can be positioned from the upper surface, preventing the module 230 from sliding out due to the elastic force of the elastic supporting mechanism. Both ends of the lower mold 200 are provided with positioning plates 280 , which are convenient for limiting the position of the modules 230 on both sides, and can also limit the position of the blank 400 placed on the module 230 . The positioning plate 280 can be installed on the upper surface of the wedge 220 through fixing screws.

如图3至图7所示,该箍环弯曲模的工作过程如下:As shown in Figures 3 to 7, the working process of the hoop bending die is as follows:

冲压开始前,模块230、托板250被顶杆252与下推板260、弹簧270弹顶至斜楔220平齐的水平位置,毛坯件400放置在对齐的两个模块230上,该毛坯件400的中部对准型腔部位,而芯轴150对准毛坯件400的中间部位。定位板280既定位毛坯件又限位斜楔220位置。此时,两块模块230呈左右互为分开状态。在非工作状态下,弹性支撑机构能托住模块230和毛坯件400保持静止;Before stamping begins, the module 230 and the supporting plate 250 are ejected by the ejector rod 252, the lower push plate 260, and the spring 270 to the horizontal position flush with the wedge 220, and the blank 400 is placed on the aligned two modules 230. The middle of 400 is aligned with the cavity, and the mandrel 150 is aligned with the middle of blank 400 . The positioning plate 280 not only positions the blank but also limits the position of the wedge 220 . At this time, the two modules 230 are separated from each other on the left and right sides. In the non-working state, the elastic support mechanism can support the module 230 and the blank 400 to keep still;

冲压开始时,上模100在外力作用下向下模的模块230方向下压,芯轴150在下压过程中会在下模模块上形成的工作带234处,将毛坯件400弯曲成U形,这时的冲压U形弯曲力是由弹性支撑机构来承担的,弹性支撑机构的弹顶力平衡预弯U形的弯曲力;When stamping begins, the upper die 100 presses down in the direction of the module 230 of the lower die under the action of an external force, and the mandrel 150 will bend the blank 400 into a U-shape at the working belt 234 formed on the lower die module during the pressing down process. The punching U-shaped bending force is borne by the elastic support mechanism, and the spring force of the elastic support mechanism balances the bending force of the pre-bent U-shape;

冲压进一步进行时,上模100继续下压,上模板120下面的压块130与模块230接触,上模压块130会开始压迫模块230沿着斜楔220斜面下滑,会将弹性支撑机构压下,两个模块230之间的间隙减小,工作带234会继续弯曲挤压U形的毛坯件400,此时芯轴150也继续下行到两模块之间形成的型腔232中,型腔232会对U形毛坯件400的半圆端进行进一步挤压成形;上模100继续下压,直到两个模块230下行到工作带234部分近似重合(即两个模块靠近到一起),在工作带234和型腔232的挤压弯曲作用下,U形毛坯件400的开口部也被挤压成圆弧形,毛坯件400完全弯曲包裹在芯轴150表面,从而将毛坯件400加工成一个完整的箍环300;同时,上模的凸板对毛坯件的端部进行作用,形成箍环弯折部310。When stamping is further carried out, the upper die 100 continues to press down, and the pressing block 130 under the upper template 120 contacts the module 230, and the upper die pressing block 130 will start to press the module 230 to slide down along the slope of the wedge 220, and will press down the elastic support mechanism. The gap between the two modules 230 decreases, and the working belt 234 will continue to bend and extrude the U-shaped blank 400. At this time, the mandrel 150 also continues to descend into the cavity 232 formed between the two modules, and the cavity 232 will The semicircular end of the U-shaped blank 400 is further extruded; the upper die 100 continues to press down until the two modules 230 go down to the working belt 234 and partially coincide (that is, the two modules are close together). Under the extrusion and bending action of the cavity 232, the opening of the U-shaped blank 400 is also extruded into a circular arc shape, and the blank 400 is completely bent and wrapped on the surface of the mandrel 150, thereby processing the blank 400 into a complete hoop ring 300; at the same time, the convex plate of the upper die acts on the end of the blank to form the hoop bend 310.

箍环300加工好后,上模100上施加的压力撤走,模块230在弹性支撑机构的弹力作用下回程滑动,在导滑螺钉和封板240的滑槽242作用下,模块230一面上升,一面沿水平方向左右分开,当两模块230水平分开到一定位置时,加工好的箍环300零件即可从芯轴150上取下来。After the hoop 300 is processed, the pressure applied on the upper mold 100 is removed, and the module 230 slides back under the elastic force of the elastic support mechanism. One side is separated left and right along the horizontal direction, and when the two modules 230 are horizontally separated to a certain position, the processed hoop 300 part can be taken off from the mandrel 150 .

本箍环弯曲模采用弹顶装置及斜楔成形的原理,采用一套模具就完成了零件的成形。由下推板260、弹簧270、顶杆252及托板250组成的弹顶装置(即弹性支撑机构);由模块230、斜楔220、封板240与导滑螺钉组成斜楔成形结构。The hoop bending die adopts the principle of pop-up device and inclined wedge forming, and the forming of parts is completed by using a set of molds. The pop-up device (that is, the elastic support mechanism) is composed of the lower push plate 260, the spring 270, the ejector rod 252 and the supporting plate 250; the wedge forming structure is composed of the module 230, the wedge 220, the sealing plate 240 and the guide screw.

以上所述实施例仅表达了本实用新型的具体实施方式,其描述较为具体和详细,但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本实用新型构思的前提下,还可以做出若干变形和改进,这些都属于本实用新型的保护范围。The above-mentioned embodiments only express the specific implementation manners of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims (8)

1. a garter spring bending die, is characterized in that, comprises the upper die and lower die cooperatively interacted;
Described patrix comprises cope match-plate pattern, is installed on the briquetting of described cope match-plate pattern both sides respectively, and is connected to the cylindric mandrel in the middle part of described cope match-plate pattern, and described mandrel protrudes from described briquetting;
Described counterdie comprises lower bolster, is individually fixed in the wedge that described lower bolster both sides are relative, is arranged at the module on each described wedge inclined-plane, and with the elastic supporting mechanism of both sides model calling, described elastic supporting mechanism is connected with lower bolster;
Between two relative described modules, there is space, form the work strip and arc die cavity that are interconnected, and described die cavity and mandrel form fit.
2. garter spring bending die according to claim 1, is characterized in that, described patrix also comprises mandrel connector, and described connecting mandrel end, mandrel connector one end and the other end connect cope match-plate pattern.
3. garter spring bending die according to claim 1, is characterized in that, described patrix also comprises flange, and described flange is connected between described mandrel and cope match-plate pattern.
4. garter spring bending die according to claim 1, is characterized in that, described cope match-plate pattern is also provided with die shank.
5. garter spring bending die according to claim 1, it is characterized in that, described elastic support structure comprises the supporting plate of support two modules, at least one push rod be connected with described supporting plate, the lower push pedal be connected with described push rod, and be installed on the spring under described lower push pedal.
6. the garter spring bending die according to claim 1-5 any one, it is characterized in that, described counterdie also comprises the shrouding be arranged on outside described wedge and module, described wedge is fixedly connected with described shrouding;
Described shrouding is provided with chute, and the bevel direction of described chute and wedge is consistent, and described module is flexibly connected with described shrouding by chute.
7. the garter spring bending die according to claim 1-5 any one, is characterized in that, each described wedge inclined-plane arranges groove, and described module activities is installed in this groove.
8. the garter spring bending die according to claim 1-5 any one, is characterized in that, described counterdie also comprises one end and is fixed on described wedge that the other end covers the location-plate in described module.
CN201420522572.1U 2014-09-11 2014-09-11 Garter spring bending die Expired - Fee Related CN204135180U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350346A (en) * 2017-08-24 2017-11-17 嘉善誉丰汽车零件有限公司 Circle wheel buckle forming equipment
CN112916689A (en) * 2021-01-25 2021-06-08 赵海勇 Bone fracture plate forming machine for bone fracture materials in orthopedic surgery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350346A (en) * 2017-08-24 2017-11-17 嘉善誉丰汽车零件有限公司 Circle wheel buckle forming equipment
CN112916689A (en) * 2021-01-25 2021-06-08 赵海勇 Bone fracture plate forming machine for bone fracture materials in orthopedic surgery
CN112916689B (en) * 2021-01-25 2023-10-13 赵海勇 Bone fracture plate forming machine for bone fracture in bone surgery

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