WO2016127487A1 - 一种轮毂压铸模具 - Google Patents

一种轮毂压铸模具 Download PDF

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Publication number
WO2016127487A1
WO2016127487A1 PCT/CN2015/076233 CN2015076233W WO2016127487A1 WO 2016127487 A1 WO2016127487 A1 WO 2016127487A1 CN 2015076233 W CN2015076233 W CN 2015076233W WO 2016127487 A1 WO2016127487 A1 WO 2016127487A1
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WIPO (PCT)
Prior art keywords
die
hub
mold
wall
casting
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PCT/CN2015/076233
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English (en)
French (fr)
Inventor
贾敏栓
谭兴祥
徐国兴
Original Assignee
泗阳敏于行精密机械有限公司
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Application filed by 泗阳敏于行精密机械有限公司 filed Critical 泗阳敏于行精密机械有限公司
Priority to US15/310,918 priority Critical patent/US9776240B2/en
Priority to EP15881648.8A priority patent/EP3257604B1/en
Publication of WO2016127487A1 publication Critical patent/WO2016127487A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/062—Mechanisms for locking or opening moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art

Definitions

  • the invention relates to the field of wheel hub casting, and in particular to a hub die casting mold.
  • the wheel hub is a component used for connecting the tire and the shaft.
  • the manufacturing process can be divided into three types: integral casting type, integral forging type and composite type.
  • the integral casting type wheel has the advantage of low cost and occupies the total production volume of the hub. About 90%.
  • the manufacturing process of the integrally cast wheel hub is that the aluminum water, that is, the liquid aluminum alloy is poured into the cavity of the mold, and the aluminum water is solidified to form the hub blank, and then the mold is cooled, and then the deburring, grinding, surface treatment and the like are finished to obtain the finished wheel product.
  • the different aluminum water pouring process it is divided into gravity casting and pressure casting; the structure of the hub is a cylindrical shape composed of rim and spoke.
  • the casting mold is generally formed by the combination of upper mold, lower mold and side mold. Hub casting cavity, pressure casting needs to maintain a certain pressure after pouring aluminum water into the mold, the better the sealing of the cavity, the higher the pressure resistance value, the better the quality of the casted wheel; the current pressure casting mold is in the lower template
  • the four corners are respectively provided with columns, and the four arc-shaped portions constituting the side molds are respectively connected to the sliding grooves on the column through the sliders, and the outer walls of the four-section curved portions are continuously applied with pressure through the four oppositely disposed cylinders to prevent the occurrence of the air holes.
  • the high energy consumption of the cylinder also increases the manufacturing cost of the hub; in addition, the cavity withstand voltage is limited by the specification of the cylinder, and the pressure in the cavity acts on the side mold.
  • the technical problem to be solved by the present invention is to provide a hub die-casting mold, which can solve the four-section curved portion of the existing side wheel die-casting mold forming the side mold by four cylinders and pressure, respectively, and the energy consumption is high, resulting in an increase in the manufacturing cost of the hub.
  • the problem is to provide a hub die-casting mold, which can solve the four-section curved portion of the existing side wheel die-casting mold forming the side mold by four cylinders and pressure, respectively, and the energy consumption is high, resulting in an increase in the manufacturing cost of the hub.
  • a hub die-casting mold comprising a lower die, a side die and an upper die which are combined to form a hub casting cavity, the lower die being disposed on a lower die, the side die being connected by a four-segment sliding connection to an arc portion of the lower die plate
  • the four-section curved portion is respectively located on the left and right sides of the lower mold, and the sliding trajectory of the two curved portions of each group is 3° to 10° between the left and right diameters of the lower mold.
  • an additional connecting block disposed on the outer side of the two sets of curved portions, wherein the connecting block is provided with a connecting hole, and the outer walls of the two curved portions of each set are respectively provided with hooks, and the sliding hooks are respectively Connected to the connection hole.
  • the lower die plate is respectively provided with sliding grooves on both sides of the left and right diameters of the lower die, and each of the curved portions is provided with a slider matched with the sliding groove.
  • each of the connecting blocks is provided with two connecting holes, and the hooks of the outer walls of the two curved portions of each group are respectively slidably connected to the two connecting holes.
  • the pull hook is composed of a connecting plate connected to the outer wall of the butt end of the two-stage curved portion and a post fixed to the surface of the connecting plate, and the column penetrates the connecting hole.
  • the outer wall of the side mold is a truncated cone having a large end and a small end at the other end, and the outer wall of the side mold is connected with a circular locking sleeve, and the inner diameter of the clamping sleeve is on the side. Between the outer end outer diameter of the outer wall of the mold and the outer diameter of the small end, the inner wall is provided with the same taper as the outer wall of the side mold.
  • the outer wall of the side mold has a taper of 8° to 12°.
  • the axial length of the clamping sleeve is 1/3 to 1/2 of the height of the side mold.
  • the cavity pressure is provided by the clamping sleeve, which overcomes the limitation of the cylinder specification, so that the cylinder of the driving connection block only needs to provide the power for moving the curved portion, further reducing the manufacturing cost of the hub, and effectively increasing the pressure resistance value of the cavity, Improve the crystallization and density of the hub, the strength of the hub made of heavy aluminum water is better than the existing hub, and the weight of the aluminum water required for the same strength of the hub is reduced by about 10%, effectively improving the market competitiveness of the hub and the mold;
  • the cavity pressure is provided by the clamping sleeve, the column and the upper template are omitted, the components of the mold are reduced, and the mold structure is simplified;
  • Figure 1 is a schematic view showing the mold opening state of the present invention.
  • Figure 2 is a schematic view showing the mold clamping state of the present invention.
  • Figure 3 is a schematic view showing the connection structure of the curved portion and the lower template.
  • the lower mold 2 of the hub casting cavity, the side mold and the upper mold 4 the upper end of the upper mold 4 is connected with a top rod plate 5, and the lower mold 2 is disposed on the lower mold plate 1, the outer wall of the side mold is one end large, and the other a truncated cone having a taper of 8° to 12° at one end, and an outer ring of the side mold is connected with a circular locking sleeve 6 having an axial length of 1/3 to 1/2 of the height of the side mold,
  • the inner diameter of the clamping sleeve 6 is between the outer diameter of the large end of the outer wall of the side mold and the outer diameter of the small end, and the inner wall is provided with the same taper as the outer wall of the side mold.
  • the side mold is composed of four curved joints connected to the curved portion 3 of the lower mold 1.
  • the four curved portions 3 are divided into two groups respectively located on the left and right sides of the lower mold 2, and the lower template 1 a sliding groove 10 having an angle of 3° to 10° with respect to the diameter is disposed symmetrically on both sides of the lower side of the lower mold 2, and each of the curved portions 3 is provided with a slider 11 matched with the sliding groove 10 at the bottom of each of the curved portions 3; a connecting block 8 respectively disposed on the outer side of the two sets of curved portions, wherein the connecting block 8 is provided with two waist connecting holes 9 , and the outer walls of the two curved portions 3 of each group are respectively provided with hooks 7 ,
  • the hook 7 is composed of a connecting plate connected to the outer wall of the butting end of the two-stage curved portion 3 and a column fixed to the surface of the connecting plate, and the column is penetrated and slidably connected to the corresponding connecting hole 9.
  • the horizontal cylinder driving the connecting block 8 pushes the curved portion 3 to move and butt along the inclined sliding slot, and then drives the clamping sleeve 6 through the vertical cylinder to lower the sleeve on the outer wall of the side mold to achieve locking, and then the upper mold 4 moves down to realize the clamping;
  • the force of the opposite side mold in the cavity is used to overcome the friction between the clamping sleeve 6 and the side mold, and the other part directly acts on the clamping sleeve 6, so the specifications of the horizontal cylinder and the vertical cylinder are greatly reduced;
  • demolding the upper mold 4 and the mold sleeve 6 are raised first, and then the side mold is opened.

Abstract

一种轮毂压铸模具，包括组合后形成轮毂铸造型腔的下模（2）、侧模和上模（4），所述下模（2）设置在下模板（1）上，所述侧模由四段滑动连接于下模板（1）的弧形部（3）对接组成，所述四段弧形部（3）分为分别位于下模（2）左、右两侧的两组，每一组的两段弧形部（3）的滑动轨迹与下模（2）左右向直径之间设有3°~10°的夹角；还包括两个分别设置于两组弧形部外侧的连接块（8），所述连接块（8）上设有连接孔（9），每一组的两段弧形部（3）外壁分别设有拉钩（7），所述拉钩（7）滑动连接于连接孔（9）。通过两个连接块分别拉动一组的两段弧形部，两个连接块只需两个油缸驱动，将浇注过程中的油缸能耗降低一半；通过锁模套提供型腔压力，克服了油缸规格的限制，降低轮毂的制造成本。

Description

一种轮毂压铸模具 技术领域
本发明涉及轮毂铸造领域，具体涉及一种轮毂压铸模具。
背景技术
轮毂是车辆用于连接轮胎与轴的部件，从制造工艺上可以分为整体铸造式、整体锻造式和复合式三种，其中整体铸造式轮毂以成本低的优势，占据了轮毂总生产量的90％左右。整体铸造式轮毂的制造过程是，将铝水即液态铝合金浇注进模具的型腔，待铝水凝固形成轮毂毛坯后脱模冷却，再进行去毛刺、打磨、表面处理等精加工得到轮毂成品；根据铝水浇注工艺的不同，分为重力铸造和压力铸造；轮毂的结构是由轮辋和轮辐组成的筒形，为便于脱模，其铸造模具普遍采用上模、下模和侧模组合形成毂铸造型腔，压力铸造在铝水浇注进模具后需要保持一定的压力，型腔的密封性越好，耐压值越高，所铸造出的轮毂品质越好；目前的压力铸造模具在下模板四角分别设有立柱，组成侧模的四段弧形部分别通过滑块与立柱上的滑槽连接，浇注时四段弧形部外壁分别通过四个相对设置的油缸持续施加压力以防止出现气孔，油缸的高能耗也增加了轮毂的制造成本；此外，型腔耐压值受油缸规格限制，而且型腔内的压力通过侧模作用于立柱，为防止立柱变形，上模除了连接有顶杆板，还设有与立柱顶端连接的、尺寸几乎与下模板相等的上模板，整套模具的组件多，结构复杂。
发明内容
本发明要解决的技术问题是提供一种轮毂压铸模具，可以解决现有轮毂压铸模具组成侧模的四段弧形部分别通过四个油缸驱动以及施压，能耗高，导致增加轮毂制造成本的问题。
本发明通过以下技术方案实现：
一种轮毂压铸模具，包括组合后形成轮毂铸造型腔的下模、侧模和上模，所述下模设置在下模板上，所述侧模由四段滑动连接于下模板的弧形部对接组成，所述四段弧形部分为分别位于下模左、右两侧的两组，每一组的两段弧形部的滑动轨迹与下模左右向直径之间设有3°～10°的夹角；还包括两个分别设置于两组弧形部外侧的连接块，所述连接块上设有连接孔，每一组的两段弧形部外壁分别设有拉钩，所述拉钩滑动连接于连接孔。
本发明的进一步方案是，所述下模板在下模左右向直径的两侧分别设有滑槽，每段弧形部底部设有与滑槽配合的滑块。
本发明的进一步方案是，每个连接块上设有两个连接孔，每一组的两段弧形部外壁的拉钩分别滑动连接于两个连接孔。
本发明的进一步方案是，所述拉钩由连接于两段弧形部对接端外壁的连接板和固定在连接板上表面的立柱组成，所述立柱贯穿连接孔。
本发明的进一步改进方案是，所述侧模外壁为一端大、另一端小的截顶圆锥形，所述侧模外壁连接有圆环形的锁模套，所述锁模套内径介于侧模外壁的大端外径和小端外径之间，其内壁设有与侧模外壁相同的锥度。
本发明的更进一步方案是，所述侧模外壁锥度为8°～12°。
本发明的更进一步方案是，所述锁模套的轴向长度为侧模高度的1/3～1/2。
本发明与现有技术相比的优点在于：
一、通过两个连接块分别拉动一组的两段弧形部，两个连接块只需两个油缸驱动，将浇注过程中的油缸能耗降低一半，大幅降低轮毂的制造成本；
二、通过锁模套提供型腔压力，克服了油缸规格的限制，使驱动连接块的油缸只需提供移动弧形部的动力，进一步降低轮毂的制造成本，而且有效提高型腔耐压值，提高轮毂的结晶和密度，等重铝水制造出的轮毂强度优于现有轮毂，相同强度的轮毂所需铝水重量降低10％左右，有效提高轮毂及模具的市场竞争力；
三、通过锁模套提供型腔压力，省去了立柱、上模板，减少模具的组件，简化了模具结构；
四、相比现有压力铸造的合模、脱模需要考虑多方面因素，操作的专业性要求高，简化了合模、脱模步骤，实现了一种傻瓜式操作。
附图说明
图1为本发明的开模状态示意图。
图2为本发明的合模状态示意图。
图3为弧形部与下模板连接结构示意图。
具体实施方式
如图1、图2和图3所示一种轮毂压铸模具，包括组合后形成轮 毂铸造型腔的下模2、侧模和上模4，所述上模4上端连接有顶杆板5，所述下模2设置在下模板1上，所述侧模外壁为一端大、另一端小的锥度为8°～12°的截顶圆锥形，所述侧模外壁连接有轴向长度为侧模高度的1/3～1/2的圆环形的锁模套6，所述锁模套6内径介于侧模外壁的大端外径和小端外径之间，其内壁设有与侧模外壁相同的锥度。
所述侧模由四段滑动连接于下模板1的弧形部3对接组成，所述四段弧形部3分为分别位于下模2左、右两侧的两组，所述下模板1在下模2左右向直径的两侧对称设有与该直径夹角为3°～10°的滑槽10，每段弧形部3底部设有与滑槽10配合的滑块11；还包括两个分别设置于两组弧形部外侧的连接块8，所述连接块8上设有两个腰形连接孔9，每一组的两段弧形部3外壁分别设有拉钩7，所述拉钩7由连接于两段弧形部3对接端外壁的连接板和固定在连接板上表面的立柱组成，所述立柱贯穿并滑动连接于对应的连接孔9。
驱动连接块8的水平油缸推动弧形部3沿着倾斜滑槽移动对接，再通过竖直油缸驱动锁模套6降下套在侧模外壁实现锁定，然后上模4下移实现合模；由于型腔内对侧模的作用力一部分用于克服锁模套6与侧模之间的摩擦力，另一部分直接作用于锁模套6，因此水平油缸和竖直油缸的规格要求都大幅降低；脱模时先依次升起上模4和锁模套6，再打开侧模即可。

Claims (7)

  1. 一种轮毂压铸模具，包括组合后形成轮毂铸造型腔的下模(2)、侧模和上模(4)，所述下模(2)设置在下模板(1)上，所述侧模由四段滑动连接于下模板(1)的弧形部(3)对接组成，其特征在于：所述四段弧形部(3)分为分别位于下模(2)左、右两侧的两组，每一组的两段弧形部(3)的滑动轨迹与下模(2)左右向直径之间设有3°～10°的夹角；还包括两个分别设置于两组弧形部外侧的连接块(8)，所述连接块(8)上设有连接孔(9)，每一组的两段弧形部(3)外壁分别设有拉钩(7)，所述拉钩(7)滑动连接于连接孔(9)。
  2. 如权利要求1所述的一种轮毂压铸模具，其特征在于：所述下模板(1)在下模(2)左右向直径的两侧分别设有滑槽(10)，每段弧形部(3)底部设有与滑槽(10)配合的滑块(11)。
  3. 如权利要求1所述的一种轮毂压铸模具，其特征在于：每个连接块(8)上设有两个连接孔(9)，每一组的两段弧形部(3)外壁的拉钩(7)分别滑动连接于两个连接孔(9)。
  4. 如权利要求1或3所述的一种轮毂压铸模具，其特征在于：所述拉钩(7)由连接于两段弧形部(3)对接端外壁的连接板和固定在连接板上表面的立柱组成，所述立柱贯穿连接孔(9)。
  5. 如权利要求1所述的一种轮毂压铸模具，其特征在于：所述侧模外壁为一端大、另一端小的截顶圆锥形，所述侧模外壁连接有圆环形的锁模套(6)，所述锁模套(6)内径介于侧模外壁的大端外径 和小端外径之间，其内壁设有与侧模外壁相同的锥度。
  6. 如权利要求5所述的一种轮毂压铸模具，其特征在于：所述侧模外壁锥度为8°～12°。
  7. 如权利要求5所述的一种轮毂压铸模具，其特征在于：所述锁模套(6)的轴向长度为侧模高度的1/3～1/2。
PCT/CN2015/076233 2015-02-11 2015-04-10 一种轮毂压铸模具 WO2016127487A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/310,918 US9776240B2 (en) 2015-02-11 2015-04-10 Hub die-casting mould
EP15881648.8A EP3257604B1 (en) 2015-02-11 2015-04-10 Hub die-casting mould

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CN201510070964.8A CN104550847A (zh) 2015-02-11 2015-02-11 一种轮毂低压铸造模具
CN201510070964.8 2015-02-11

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CN112170786A (zh) * 2020-09-20 2021-01-05 江苏张驰轮毂制造有限公司 一种铝合金轮毂铸造设备
CN113399361B (zh) * 2021-07-29 2022-06-17 重庆众异特巧匠模具科技有限公司 一种用于轮毂模具的清洗装置

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