CN207272080U - A kind of hot-rocking-rolling mold - Google Patents

本实用新型公开了一种热摆辗模具，包括摆头座(1)、上模座(11)和下模座(21)，在所述上模座(11)的中部嵌设有上模套(12)，在所述上模套(12)的中部竖直固设有摆头(13)，所述摆头(13)上设有成型凸包；在所述下模座(21)的中部嵌设有凹模套(23)，在所述凹模套(23)的中部固设有凹模芯(24)，所述凹模芯(24)的中部设有成型凹腔和顶料腔(25)，在所述顶料腔(25)内设有顶料杆(241)。本实用新型利用成型凸包的摆动辗压力以及成型凹腔向上移动对坯料形成的挤压力，使坯料均匀铺设在成型凹腔内，受力均匀，延展效果好，减少了材料缺损，提高了材料利用率，降低了生产成本，提高了生产效率。

The utility model discloses a hot swing rolling die, which comprises a swing head seat (1), an upper die seat (11) and a lower die seat (21), and an upper die is embedded in the middle of the upper die seat (11). Cover (12), vertically fixed with a swing head (13) in the middle part of the upper mold cover (12), the swing head (13) is provided with a forming convex hull; on the lower die base (21) The middle part is embedded with a die cover (23), and a die core (24) is fixed in the middle part of the die cover (23), and the middle part of the die core (24) is provided with a molding cavity and a top A material cavity (25), a material ejector rod (241) is arranged in the material ejector cavity (25). The utility model utilizes the swing rolling pressure of the forming convex hull and the extrusion force formed by the upward movement of the forming cavity on the blank, so that the blank is evenly laid in the forming cavity, the force is uniform, the extension effect is good, the material defect is reduced, and the The material utilization rate reduces the production cost and improves the production efficiency.

一种热摆辗模具A hot rolling mold

技术领域technical field

本实用新型涉及摆辗技术领域，特别涉及一种热摆辗模具。The utility model relates to the technical field of swing rolling, in particular to a hot swing rolling mold.

背景技术Background technique

目前，汽车气门的加工方法为电热镦粗制坯+普通热模锻成形+后续精加工。普通热模锻成形的气门成形件，其后续精加工余量大，生产效率低；同时普通热模锻成形的气门成形件没有锻出上端面的凹型球面，其上端面的凹型球面依靠后续数控加工或仿形加工的方法制成，数控加工或仿形加工上端面凹型球面的生产效率较低，生产成本较高。At present, the processing method of automobile valve is electrothermal upsetting billet + ordinary hot die forging + subsequent finishing. Ordinary hot die forging formed valve parts have a large subsequent finishing allowance and low production efficiency; at the same time, ordinary hot die forged valve parts do not have a concave spherical surface on the upper end surface, and the concave spherical surface on the upper end surface depends on the follow-up numerical control. The production efficiency of the concave spherical surface on the upper end surface of the numerical control machining or profiling processing is relatively low, and the production cost is relatively high.

实用新型内容Utility model content

本实用新型要解决的技术问题是提供了一种能提高材料利用率、提高生产效率，并能降低生产成本的热摆辗模具。The technical problem to be solved by the utility model is to provide a hot swing rolling mold which can improve material utilization rate, increase production efficiency and reduce production cost.

本实用新型的技术方案如下：The technical scheme of the utility model is as follows:

一种热摆辗模具，包括摆头座、上模座和下模座，所述上模座固设于摆头座上，所述下模座的下端固设有下模板，在所述下模板的下端连接有工作台滑块，在所述上模座的中部嵌设有上模套，在所述上模套的中部竖直固设有摆头，所述摆头的下端伸出上模套的下端面，该伸出端端面为平直面，该平直面的中部设有成型凸包，所述成型凸包包括圆弧面，所述圆弧面与摆头伸出端的平直端面之间设有斜面 段，所述摆头伸出端的平直端面的边沿均为圆角设置；A hot swing rolling die, comprising a swing head base, an upper die base and a lower die base, the upper die base is fixed on the swing head base, a lower template is fixed at the lower end of the lower die base, The lower end of the formwork is connected with a workbench slider, and an upper mold cover is embedded in the middle part of the upper mold base, and a swing head is vertically fixed in the middle part of the upper die cover, and the lower end of the swing head protrudes from the upper The lower end surface of the mold sleeve, the protruding end surface is a straight surface, and the middle part of the straight surface is provided with a forming convex hull, and the forming convex hull includes an arc surface, and the arc surface and the straight end surface of the extending end of the swing head There is a slope section between them, and the edges of the straight end surface at the extension end of the swing head are rounded;

在所述下模座的中部嵌设有凹模套，在所述凹模套的中部固设有凹模芯，所述凹模芯的中部设有连接贯通的成型凹腔和顶料腔，所述成型凹腔包括上大下小的台阶孔，在所述台阶孔的下端设有一段过渡斜面，所述过渡斜面的下端与顶料腔的上端开口之间连接有圆弧段，在所述顶料腔内设有顶料杆，所述顶料杆的下端连接有顶出活塞；坯料放入凹模芯中，摆头座带动摆头作摆动辗压运动，工作台滑块带动凹模芯逐步向上移动，成型凸包和摆头的伸出端摆动辗压坯料，使坯料在成型凹腔内挤压成型，并由顶料杆顶出取料。A die sleeve is embedded in the middle of the lower mold base, a die core is fixed in the middle of the die sleeve, and a forming cavity and a ejection cavity connected through are provided in the middle of the die core. The forming concave cavity includes a step hole with a large upper part and a smaller lower part. A section of transition slope is provided at the lower end of the step hole. There is an ejector rod in the ejector cavity, and the lower end of the ejector rod is connected with an ejector piston; the billet is put into the die core, the swing head seat drives the swing head to perform a swing rolling movement, and the slider of the worktable drives the concave die core. The mold core moves upwards step by step, and the protruding end of the forming convex shell and the swing head swings and rolls the billet, so that the billet is extruded in the forming cavity, and is ejected by the ejector rod to take out the material.

采用以上结构，把加热的坯料放入成型凹腔内，同时，坯料的一部分位于顶料腔内，启动摆头座，摆头座带动摆头在水平方向作摆动辗压运动，接着，启动与下模板连接的工作台滑块，工作台滑块逐步向上移动，当坯料抵接摆头的圆弧面时，坯料在摆头的辗压力和滑块向上移动形成的压力作用下，开始沿圆弧面、斜面段以及摆头伸出端的端面结构受力延展，在摆头伸出端端面的摆动辗压下，使坯料受力辗压并填满成型凹腔，并最终使坯料受力位置的上端面结构与摆头伸出端端面和成型凸包的结构相匹配，坯料受力位置的下端面与成型凹腔的台阶孔结构相匹配；加工完以后，工作台滑块向下移动，摆头座停止转动，顶料杆在顶出活塞的带动下，沿着顶料腔向上移动，抵接坯料位于顶料腔内的部分，并继续向上移动挤出已加工的摆辗产品，最后将已顶出成型凹腔的摆辗产品取出即可，该模具结构简单、紧凑，不会造成材料缺损，提高了材料利用率，降低了生产成本，碾压一次 成型，提高了生产效率。With the above structure, the heated billet is put into the forming cavity, and at the same time, a part of the billet is located in the ejector chamber, the swing head seat is started, and the swing head seat drives the swing head to perform a swinging and rolling movement in the horizontal direction, and then, start and The slide block of the worktable connected with the lower template, the slide block of the worktable moves upward gradually. When the blank touches the arc surface of the swing head, the blank starts to move along the circular arc under the pressure formed by the rolling force of the swing head and the upward movement of the slide block. The end face structure of the arc surface, the inclined plane section and the extension end of the swing head is stretched under force, and under the swing rolling of the end face of the extension end of the swing head, the billet is rolled under force and fills the forming cavity, and finally the force-bearing position of the billet The upper end surface structure of the swing head matches the structure of the forming convex hull, and the lower end surface of the blank stress position matches the stepped hole structure of the forming cavity; after processing, the slide block of the worktable moves downward, The oscillating head seat stops rotating, and the ejector rod moves upward along the ejector chamber driven by the ejector piston, abuts against the part of the billet in the ejector chamber, and continues to move upward to extrude the processed oscillating rolling product. Just take out the oscillating rolling product that has been pushed out of the forming cavity. The mold has a simple and compact structure, will not cause material defects, improves material utilization, reduces production costs, and rolls once to form, improving production efficiency.

为了使摆动辗压的延展变形阻力减小，作为优选，所述斜面段的斜面方向与摆头伸出端端面的夹角均为18°，所述斜面段与摆头伸出端端面之间的连接处设置有半径为3mm的圆角，所述圆弧面的半径为15mm。In order to reduce the extension and deformation resistance of swing rolling, as a preference, the angle between the slope direction of the slope section and the end surface of the swing head extension is 18°, and the angle between the slope section and the extension end surface of the swing head is 18°. A rounded corner with a radius of 3 mm is provided at the joint of the arc surface, and the radius of the arc surface is 15 mm.

为了便于坯料受辗压后，更有利于填充到成型凹腔中，作为优选，所述台阶孔包括第一台阶孔和第二台阶孔，所述第一台阶孔的孔径大于第二台阶孔的孔径；所述第一台阶孔的孔壁与水平面的夹角为45°，所述第二台阶孔的孔壁与水平面的夹角为30°。In order to facilitate the blank to be filled into the forming cavity after being rolled, preferably, the stepped hole includes a first stepped hole and a second stepped hole, and the diameter of the first stepped hole is larger than that of the second stepped hole Aperture: the angle between the wall of the first stepped hole and the horizontal plane is 45°, and the angle between the wall of the second stepped hole and the horizontal plane is 30°.

为了使坯料的外侧壁在变形过程中不产生挤压堆积，作为优选，所述过渡斜面的斜面方向与水平面的夹角为20°；所述圆弧段的半径为8mm。In order to prevent the outer wall of the billet from being squeezed and piled up during the deformation process, preferably, the angle between the slope direction of the transition slope and the horizontal plane is 20°; the radius of the arc segment is 8mm.

为了保证摆动辗压成型的强度，作为优选，所述圆弧面的凸出部冒出摆头伸出端端面的高度为2.5mm。In order to ensure the strength of the oscillating roll forming, preferably, the height of the protruding part of the circular arc surface from the protruding end surface of the oscillating head is 2.5mm.

有益效果：本实用新型利用成型凸包的摆动辗压力以及成型凹腔向上移动对坯料形成的挤压力，使坯料均匀铺设在成型凹腔内，受力均匀，延展效果好，减少了材料缺损，提高了材料利用率，降低了生产成本，提高了生产效率。Beneficial effects: the utility model utilizes the swing rolling pressure of the forming convex hull and the extrusion force formed by the upward movement of the forming cavity on the blank, so that the blank is evenly laid in the forming cavity, the force is uniform, the extension effect is good, and the material defect is reduced. , Improve material utilization, reduce production costs and improve production efficiency.

附图说明Description of drawings

图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.

图2为摆头的结构示意图。Figure 2 is a schematic diagram of the structure of the swing head.

图3为凹模芯的结构示意图。Figure 3 is a schematic structural view of the die core.

具体实施方式Detailed ways

下面结合附图对本实用新型作进一步说明。Below in conjunction with accompanying drawing, the utility model is further described.

由图1、图2和图3所示，本实用新型由摆头座1、上模座11和下模座21等组成，所述上模座11固设于摆头座1上，所述下模座21的下端固设有下模板22，在所述下模板22的下端连接有工作台滑块3，在所述上模座11的中部嵌设有上模套12，在所述上模套12的中部竖直固设有摆头13，所述摆头13的下端伸出上模套12的下端面，该伸出端端面为平直面，该平直面的中部设有成型凸包，所述成型凸包包括圆弧面131，所述圆弧面131与摆头13伸出端的平直端面之间设有斜面段132，所述圆弧面131的凸出部冒出摆头13伸出端端面的高度为2.5mm；所述斜面段132的斜面方向与摆头13伸出端端面的夹角均为18°，所述斜面段132与摆头13伸出端端面之间的连接处设置有半径为3mm的圆角，所述圆弧面131的半径为15mm，所述摆头13伸出端的平直端面的边沿均为圆角设置。As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is composed of a swing head base 1, an upper die base 11 and a lower die base 21, etc., the upper die base 11 is fixed on the swing head base 1, and the The lower end of the lower mold base 21 is fixed with a lower template 22, the lower end of the lower template 22 is connected with a workbench slider 3, and the middle part of the upper mold base 11 is embedded with an upper mold cover 12. The middle part of the mold cover 12 is vertically fixed with a swing head 13, and the lower end of the swing head 13 protrudes from the lower end face of the upper die cover 12. , the forming convex hull includes a circular arc surface 131, an inclined plane section 132 is provided between the circular arc surface 131 and the straight end surface of the extended end of the swing head 13, and the protruding part of the circular arc surface 131 emerges from the swing head 13. The height of the protruding end face is 2.5 mm; the angle between the bevel direction of the slope section 132 and the protruding end face of the swing head 13 is 18°, and the distance between the bevel section 132 and the swing head 13 protruding end face A rounded corner with a radius of 3mm is provided at the joint of the oscillating head, the radius of the arc surface 131 is 15mm, and the edges of the straight end surface at the extended end of the swing head 13 are all rounded.

在所述下模座21的中部嵌设有凹模套23，在所述凹模套23的中部固设有凹模芯24，所述凹模芯24的中部设有连接贯通的成型凹腔和顶料腔25，所述成型凹腔包括上大下小的台阶孔，所述台阶孔包括第一台阶孔241和第二台阶孔242，所述第一台阶孔241的孔径大于第二台阶孔242的孔径；所述第一台阶孔241的孔壁与水平面的夹角为45°，所述第二台阶孔242的孔壁与水平面的夹角为30°；在所述第二台阶孔242的下端设有一段过渡斜面243，所述过渡斜面243的斜面方向与水平面的夹角为20°，所述过渡斜面243的下端与 顶料腔25的上端开口之间连接有圆弧段244，所述圆弧段244的半径为8mm。A die cover 23 is embedded in the middle of the lower mold base 21, a die core 24 is fixed in the middle of the die cover 23, and a connecting cavity is provided in the middle of the die core 24. And the top material cavity 25, the forming cavity includes a step hole with a large upper part and a smaller step hole, and the step hole includes a first step hole 241 and a second step hole 242, and the diameter of the first step hole 241 is greater than that of the second step The aperture of the hole 242; the angle between the wall of the first stepped hole 241 and the horizontal plane is 45°, and the angle between the wall of the second stepped hole 242 and the horizontal plane is 30°; in the second stepped hole The lower end of 242 is provided with a section of transition slope 243, the angle between the direction of the slope of the transition slope 243 and the horizontal plane is 20 °, the lower end of the transition slope 243 and the upper opening of the ejector chamber 25 are connected with a circular arc section 244 , the radius of the arc segment 244 is 8 mm.

在所述顶料腔25内设有顶料杆251，所述顶料杆251的下端连接有顶出活塞4；坯料放入凹模芯24中，摆头座1带动摆头13作摆动辗压运动，工作台滑块3带动凹模芯24逐步向上移动，摆头上的成型凸包和摆头13的伸出端端面摆动辗压坯料，使坯料在成型凹腔内挤压成型，并由顶料杆251顶出取料。A ejector rod 251 is provided in the ejector chamber 25, and the lower end of the ejector rod 251 is connected with an ejector piston 4; the blank is put into the die core 24, and the swing head seat 1 drives the swing head 13 to perform swing rolling Pressing movement, the workbench slider 3 drives the die core 24 to move upwards step by step, the forming convex hull on the swing head and the protruding end face of the swing head 13 swing and roll the billet, so that the billet is extruded in the forming cavity, and The material is ejected and taken out by the ejector rod 251 .

本实用新型的使用方法如下：The using method of the present utility model is as follows:

把加热的坯料放入成型凹腔的台阶孔内，坯料的下端插入顶料腔25内，同时，坯料加工位置外侧壁下端的对应位置与圆弧段234处抵接，在辗压过程中能起到支撑作用。Put the heated blank into the stepped hole of the forming cavity, insert the lower end of the blank into the ejector chamber 25, and at the same time, the corresponding position of the lower end of the outer side wall of the blank processing position abuts against the arc section 234, which can be play a supporting role.

开始时，启动摆头座1，摆头座1带动摆头13在水平方向作摆动运动，接着，启动与下模板22连接的工作台滑块4，工作台滑块4逐步向上移动，当坯料抵接摆头13的圆弧面131时，坯料在摆头13的辗压力和滑块向上移动形成的压力作用下，开始沿圆弧面131、斜面段132以及摆头13伸出端的端面结构受力延展，在摆头13伸出端端面的摆动辗压下，使坯料受力辗压并填满成型凹腔内的第一台阶孔241和第二台阶孔242，坯料加工位置下端的外侧壁在圆弧段244的影响下，一部分向上填平过渡斜度243与成型凹腔之间的间隙，另一部分则沿着圆弧段244向下延展移动，并逐步与圆弧段244贴合，并最终使坯料受力位置的上端面结构与摆头13伸出端端面以及成型凸包的结构相匹配，坯料受力位置的下端面与台阶孔以及成型凹腔的结构相匹配。加工完以后，工作台滑块3向下移动，摆头座1停止转动，顶料杆251在顶出活塞4的带动下，沿着顶料腔25向上移动，抵接坯料位于顶料腔25内的部分，并继续向上移动顶出已加工的摆辗产品，最后将从成型凹腔顶出的摆辗产品取出即可，结构简单、紧凑，不会造成材料缺损，提高了材料利用率，降低了生产成本，辗压一次成型，提高了生产效率。At the beginning, the swing head seat 1 is started, and the swing head seat 1 drives the swing head 13 to swing in the horizontal direction. Then, the workbench slider 4 connected to the lower template 22 is started, and the workbench slider 4 moves upward gradually. When the blank When abutting against the arc surface 131 of the swing head 13, under the action of the rolling force of the swing head 13 and the pressure formed by the upward movement of the slider, the billet begins to follow the arc surface 131, the slope section 132 and the end surface structure of the extended end of the swing head 13. Stretching under force, under the swing rolling of the end face of the swing head 13, the billet is rolled under force and fills the first stepped hole 241 and the second stepped hole 242 in the forming cavity, the outer side of the lower end of the blank processing position Under the influence of the arc segment 244, a part of the wall fills up the gap between the transition slope 243 and the forming cavity, and the other part extends and moves downward along the arc segment 244, and gradually fits the arc segment 244 , and finally match the structure of the upper end surface of the stressed position of the blank with the protruding end surface of the swing head 13 and the structure of the forming convex hull, and match the structure of the lower end surface of the stressed position of the blank with the stepped hole and the formed concave cavity. After processing, the slider 3 of the workbench moves downward, the swing head seat 1 stops rotating, and the ejector rod 251 moves upward along the ejector cavity 25 driven by the ejector piston 4, and the abutting blank is positioned at the ejector chamber 25. part inside, and continue to move upward to eject the processed oscillating product, and finally take out the oscillating product ejected from the forming cavity. The structure is simple and compact, which will not cause material defects and improve the material utilization rate. The production cost is reduced, and the production efficiency is improved by rolling and forming at one time.

本实用新型未描述部分与现有技术一致，在此不作赘述。The undescribed part of the utility model is consistent with the prior art, and will not be repeated here.

以上仅为本实用新型的实施方式，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构，直接或间接运用在其他相关的技术领域，均同理在本实用新型的专利保护范围之内。The above are only embodiments of the present utility model, and are not intended to limit the scope of patents of the present utility model. All equivalent structures made using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in other related technical fields, all in the same way Within the scope of patent protection of the utility model.