CN118341955A - Automobile transmission shell die casting die - Google Patents
Automobile transmission shell die casting die Download PDFInfo
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- CN118341955A CN118341955A CN202410242751.8A CN202410242751A CN118341955A CN 118341955 A CN118341955 A CN 118341955A CN 202410242751 A CN202410242751 A CN 202410242751A CN 118341955 A CN118341955 A CN 118341955A
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- transmission housing
- plate
- automobile transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 108
- 238000004512 die casting Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 48
- 238000000465 moulding Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- 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
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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
- 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
- B22D17/2227—Die seals
-
- 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
- B22D17/2236—Equipment for loosening or ejecting castings from dies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本发明属于变速器壳体生产技术领域，具体而言，涉及一种汽车变速器壳体压铸模具，包括工作支架，所述工作支架的上方安装有支撑框体，所述支撑框体的底部安装有伸缩气缸，所述伸缩气缸的伸缩端安装有动模板，动模板的表面开设有进液口，所述工作支架的上表面与动模板对应位置处安装有定模板，所述定模板和动模板呈同一竖直面设置；通过伸缩气缸先带动动模板上移，使得动模板与定模板脱离，之后再通过顶料机构将成型的汽车变速器壳体顶出即可，通过顶料机构的设置，能使得成型的汽车变速器壳体顶出动作连续，不会对压铸件产生多次冲击，有效地保证汽车变速器壳体的完整，尤其是薄壁零件的结构性能的完好。
The present invention belongs to the technical field of transmission housing production, and specifically relates to a die-casting mold for an automobile transmission housing, comprising a working bracket, a supporting frame body is installed above the working bracket, a telescopic cylinder is installed at the bottom of the supporting frame body, a movable template is installed at the telescopic end of the telescopic cylinder, a liquid inlet is provided on the surface of the movable template, a fixed template is installed at a position corresponding to the movable template on the upper surface of the working bracket, and the fixed template and the movable template are arranged in the same vertical plane; the movable template is first driven upward by the telescopic cylinder to separate the movable template from the fixed template, and then the molded automobile transmission housing is ejected by an ejection mechanism, and the ejection mechanism can make the ejection action of the molded automobile transmission housing continuous, and will not cause multiple impacts on the die-casting, thereby effectively ensuring the integrity of the automobile transmission housing, especially the structural performance of thin-walled parts.
Description
技术领域Technical Field
本发明属于变速器壳体生产技术领域，具体而言，涉及一种汽车变速器壳体压铸模具。The invention belongs to the technical field of transmission housing production, and in particular relates to a die-casting mold for an automobile transmission housing.
背景技术Background technique
汽车变速器是一套用于来协调发动机的转速和车轮的实际行驶速度的变速装置，用于发挥发动机的最佳性能。变速器可以在汽车行驶过程中，在发动机和车轮之间产生不同的变速比，通过换挡可以使发动机工作在其最佳的动力性能状态下。The automobile transmission is a set of speed-changing devices used to coordinate the engine speed and the actual driving speed of the wheels, so as to bring out the best performance of the engine. The transmission can produce different speed ratios between the engine and the wheels during the driving process of the car, and the engine can work at its best power performance state through gear shifting.
汽车变速器壳体在生产时一般是通过压铸成型的，压铸生产的工艺过程是：定量的金属液低速或高速充型进模具的型腔内，随着金属液的冷却过程，对金属液进行加压，之后冷却后便可成型。Automobile transmission housings are generally produced by die casting. The die casting process is as follows: a certain amount of molten metal is filled into the mold cavity at a low or high speed. As the molten metal cools, the molten metal is pressurized and then formed after cooling.
现有的汽车变速器壳体在成型后进行脱模时，是使用顶杆一次顶出，而顶杆的受力点位于与变速器壳体接触位置，无法覆盖变速器壳体，致使变速器壳体各处的结构无法保证均一完整的问题，影响了汽车变速器壳体的成型质量。When the existing automobile transmission housing is demolded after molding, a push rod is used to eject it once. However, the force point of the push rod is located at the contact position with the transmission housing and cannot cover the transmission housing, resulting in the problem that the structure of each part of the transmission housing cannot be guaranteed to be uniform and complete, affecting the molding quality of the automobile transmission housing.
发明内容Summary of the invention
为了弥补现有技术的不足，解决背景技术中所提出的至少一个技术问题。In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
本发明解决其技术问题所采用的技术方案是：一种汽车变速器壳体压铸模具，包括工作支架，所述工作支架的上方安装有支撑框体，所述支撑框体的底部安装有伸缩气缸，所述伸缩气缸的伸缩端安装有动模板，所述动模板的表面开设有进液口，所述工作支架的上表面与所述动模板对应位置处安装有定模板，所述定模板和所述动模板在合模时，所述定模板和所述动模板的结合处留有空隙，以形成为汽车变速器壳体的成型腔，所述定模板的内部设置有顶料机构，所述顶料机构用以对成型后的汽车变速器壳体进行顶出。The technical solution adopted by the present invention to solve its technical problems is: a die-casting mold for an automobile transmission housing, comprising a working bracket, a supporting frame body is installed above the working bracket, a telescopic cylinder is installed at the bottom of the supporting frame body, a movable template is installed at the telescopic end of the telescopic cylinder, a liquid inlet is opened on the surface of the movable template, a fixed template is installed at the upper surface of the working bracket at a position corresponding to the movable template, when the fixed template and the movable template are closed, a gap is left at the junction of the fixed template and the movable template to form a molding cavity for the automobile transmission housing, and a ejecting mechanism is arranged inside the fixed template, and the ejecting mechanism is used to eject the molded automobile transmission housing.
优选地，所述动模板的表面开设有多个出气孔，所述工作支架的表面设置有与所述动模板相适配的导向柱，所述导向柱用以对动模板的移动位置进行导向；工作时，设置了出气孔，能将金属熔融液在注入成型腔内部时，其内部产生的气体会通过出气孔散出，从而能提高后续汽车变速器壳体成型质量。Preferably, a plurality of air vents are provided on the surface of the movable template, and a guide column matched with the movable template is provided on the surface of the working bracket, and the guide column is used to guide the moving position of the movable template; when working, the air vents are provided, and when the molten metal is injected into the molding cavity, the gas generated inside the molding cavity will be dispersed through the air vents, thereby improving the subsequent molding quality of the automobile transmission housing.
优选地，所述定模板的上表面开设有圆形槽，所述圆形槽的槽壁中心处滑动安装有滑块，所述滑块的上方设置有密闭板，所述密闭板的形状和所述圆形槽的形状相适配，所述圆形槽的槽壁内设置有顶出单元，所述顶出单元用以将密闭板向上顶起，所述密闭板的形状和所述汽车变速器壳体的底部形状相适配。Preferably, a circular groove is provided on the upper surface of the fixed template, a slider is slidably installed at the center of the groove wall of the circular groove, a sealing plate is provided above the slider, the shape of the sealing plate is matched with the shape of the circular groove, an ejection unit is provided in the groove wall of the circular groove, the ejection unit is used to lift the sealing plate upwards, and the shape of the sealing plate is matched with the bottom shape of the automobile transmission housing.
优选地，所述顶出单元包括安装在滑块外表面的多个铰接架，每个所述铰接架的表面均转动安装有承接板，所述密闭板设置在所述承接板的上方，每个所述承接板的下表面均安装有限位弹簧，所述限位弹簧远离所述承接板的一侧与所述圆形槽的槽壁连接，所述定模板的内部设置有限位单元，所述限位单元用以对所述密闭板进行限位。Preferably, the ejection unit includes a plurality of articulated frames installed on the outer surface of the slider, a receiving plate is rotatably installed on the surface of each of the articulated frames, the sealed plate is arranged above the receiving plate, a limiting spring is installed on the lower surface of each of the receiving plates, the side of the limiting spring away from the receiving plate is connected to the groove wall of the circular groove, a limiting unit is arranged inside the fixed template, and the limiting unit is used to limit the sealed plate.
优选地，所述限位单元包括开设在定模板内部的多个矩形槽，每个所述矩形槽的内部均滑动安装有弹性卡柱，所述弹性卡柱延伸至所述圆形槽内，所述密闭板的下方固接有多个支撑架，每个所述支撑架和每个所述弹性卡柱呈一一对应设置，每个所述支撑架的表面均开设有卡槽，所述滑块的底部安装有第一伸缩弹簧，所述第一伸缩弹簧安装在所述圆形槽的槽壁中心处，所述定模板的下方安装有驱动单元，所述驱动单元用以控制所有的弹性卡柱移动。Preferably, the limiting unit includes a plurality of rectangular grooves provided inside the fixed template, an elastic clamping column is slidably installed inside each of the rectangular grooves, the elastic clamping column extends into the circular groove, a plurality of support frames are fixedly connected below the sealing plate, each of the support frames and each of the elastic clamping column are arranged in a one-to-one correspondence, a clamping groove is provided on the surface of each of the support frames, a first telescopic spring is installed at the bottom of the slider, the first telescopic spring is installed at the center of the groove wall of the circular groove, a driving unit is installed below the fixed template, and the driving unit is used to control the movement of all the elastic clamping columns.
优选地，所述弹性卡柱靠近所述卡槽的一侧固接有弧形卡头，所述弧形卡头的形状和所述卡槽的形状相适配，所述卡槽表面设置有圆角；工作时，设置了弧形卡头，能方便其对支撑架和密闭板的卡接，使得密闭板处于被固定状态，且在卡槽的表面设置了圆角，能方便弧形卡头卡入卡槽内，并从其内部脱离而出。Preferably, an arc-shaped clamping head is fixedly connected to one side of the elastic clamping column close to the clamping slot, the shape of the arc-shaped clamping head is adapted to the shape of the clamping slot, and the surface of the clamping slot is provided with rounded corners; when working, the arc-shaped clamping head is provided, which can facilitate its clamping to the support frame and the sealed plate, so that the sealed plate is in a fixed state, and rounded corners are provided on the surface of the clamping slot, which can facilitate the arc-shaped clamping head to be clamped into the clamping slot and detached from the inside thereof.
优选地，每个所述矩形槽的槽壁均安装有第二伸缩弹簧，所述第二伸缩弹簧远离所述矩形槽的槽壁与所述弹性卡柱的端面连接。Preferably, a second telescopic spring is installed on the groove wall of each rectangular groove, and the second telescopic spring is connected to the end surface of the elastic clamping column away from the groove wall of the rectangular groove.
优选地，所述驱动单元包括安装在所述工作支架表面的油缸，所述油缸的伸缩端安装有连接盘，所述连接盘的顶端面安装有多个压柱，多个所述压柱和多个弹性顶杆呈一一对应设置，且每个所述压柱分别贯穿至所述定模板底部，所述弹性卡柱的下表面安装有斜块，所述压柱的顶端与所述斜块的斜面接触。Preferably, the driving unit includes a cylinder installed on the surface of the working bracket, the telescopic end of the cylinder is installed with a connecting plate, the top surface of the connecting plate is installed with a plurality of pressure columns, the plurality of pressure columns and the plurality of elastic push rods are arranged in a one-to-one correspondence, and each of the pressure columns respectively penetrates to the bottom of the fixed template, the lower surface of the elastic clamping column is installed with an inclined block, and the top end of the pressure column contacts with the inclined surface of the inclined block.
优选地，所述压柱与所述斜块接触位置处转动安装有滚珠，所述滚珠转动设置在斜块的倾斜面，设置了滚珠，能方便压铸对斜块的挤压，从而方便其带动弹性卡柱的移动。Preferably, a ball is rotatably installed at the contact position between the pressure column and the inclined block, and the ball is rotatably arranged on the inclined surface of the inclined block. The arrangement of the ball can facilitate the extrusion of the inclined block by die casting, thereby facilitating the movement of the elastic clamping column.
优选地，所述定模板的内部开设有与所述压柱相适配的空槽，所述空槽的形状和所述压柱形状相适配，工作时，由于多个压柱和多个弹性卡柱呈一一对应设置，故在压柱上移时，不同位置的压柱会压缩不同处的斜块和弹性卡柱，使所有的弹性卡柱同步远离卡槽，故能方便后续将变速器壳体的取出。Preferably, a hollow groove matched with the pressure column is opened inside the fixed template, and the shape of the hollow groove is matched with the shape of the pressure column. During operation, since multiple pressure columns and multiple elastic clamping columns are arranged in a one-to-one correspondence, when the pressure column moves upward, the pressure columns at different positions will compress the inclined blocks and elastic clamping columns at different positions, so that all the elastic clamping columns will synchronously move away from the clamping grooves, thereby facilitating the subsequent removal of the transmission housing.
本发明的有益效果如下：The beneficial effects of the present invention are as follows:
1.本发明所述的一种汽车变速器壳体压铸模具，通过顶出单元可以将整个密闭板以较快的速度向上顶起，而且由于密闭板的形状和汽车变速器壳体底部形状相适配，故解决了现有技术中在脱模时是使用顶杆一次顶出，而顶杆的受力点位于与变速器壳体接触位置，无法覆盖变速器壳体，致使变速器壳体各处的结构无法保证均一完整的问题，有利于后续变速器壳体的使用。1. The automobile transmission housing die-casting mold described in the present invention can push up the entire sealing plate at a faster speed through the ejection unit. Moreover, since the shape of the sealing plate is compatible with the shape of the bottom of the automobile transmission housing, the problem in the prior art that a push rod is used for one-time ejection during demoulding is solved, and the force point of the push rod is located at the contact position with the transmission housing and cannot cover the transmission housing, resulting in the inability to ensure uniformity and integrity of the structure of various parts of the transmission housing, which is beneficial to the subsequent use of the transmission housing.
2.本发明所述的一种汽车变速器壳体压铸模具，通过控制限位单元使得其不再对密闭板进行限位，随后在不同位置的限位弹簧同步恢复下，能快速地带动承接板和密闭板向上升起，从而能快速地将成型的变速器壳体顶出，如此不仅能加快对成型的变速器壳体顶出，减少慢速顶料时变速器壳体与定模板内壁的摩擦，而且能使得变速器壳体在顶出时其受力均匀，提高了变速器壳体的成型质量并方便对其的使用。2. The automobile transmission housing die-casting mold described in the present invention controls the limit unit so that it no longer limits the sealing plate. Subsequently, under the synchronous recovery of the limit springs at different positions, the receiving plate and the sealing plate can be quickly driven to rise upward, thereby quickly ejecting the formed transmission housing. This not only speeds up the ejection of the formed transmission housing and reduces the friction between the transmission housing and the inner wall of the fixed mold plate during slow ejection, but also enables the transmission housing to be evenly stressed during ejection, thereby improving the molding quality of the transmission housing and facilitating its use.
3.本发明所述的一种汽车变速器壳体压铸模具，当一次成型结束后，需要将变速器壳体去除时，通过驱动单元将所有的弹性卡柱同步远离卡槽，使得弹性卡柱不再对卡槽限位，之后在第一伸缩弹簧和限位弹簧的作用下，能快速地将密闭板上移，并将变速器壳体顶出，操作较为方便。3. The automobile transmission housing die-casting mold described in the present invention, when the transmission housing needs to be removed after one-time molding is completed, all the elastic clamping columns are synchronously moved away from the slots through the driving unit, so that the elastic clamping columns no longer limit the slots. Thereafter, under the action of the first telescopic spring and the limit spring, the sealing plate can be quickly moved up and the transmission housing can be ejected, which is convenient to operate.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
下面结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.
图1是本发明实施例的汽车变速器壳体压铸模具的立体结构示意图；FIG1 is a schematic diagram of the three-dimensional structure of a die-casting mold for a vehicle transmission housing according to an embodiment of the present invention;
图2是本发明实施例的动模板部分结构示意图；FIG2 is a schematic diagram of the structure of a movable template according to an embodiment of the present invention;
图3是本发明实施例的定模板部分结构示意图；3 is a schematic diagram of the structure of a fixed template according to an embodiment of the present invention;
图4是本发明中图3的A处结构放大图；FIG4 is an enlarged view of the structure at A in FIG3 of the present invention;
图5是本发明实施例的密闭板部分结构示意图；FIG5 is a schematic diagram of the structure of a sealing plate portion according to an embodiment of the present invention;
图6是本发明中图5的B处结构放大图；FIG6 is an enlarged view of the structure at B in FIG5 of the present invention;
图7是本发明实施例的承接板部分结构示意图；7 is a schematic diagram of the structure of a receiving plate according to an embodiment of the present invention;
图8是本发明实施例的连接盘部分结构示意图；8 is a schematic diagram of the structure of a connection disk portion of an embodiment of the present invention;
图9是本发明中图8的C处结构放大图。FIG. 9 is an enlarged view of the structure at point C in FIG. 8 of the present invention.
图中：1、工作支架；101、定模板；2、支撑框体；3、伸缩气缸；4、动模板；5、圆形槽；501、滑块；6、铰接架；7、承接板；701、限位弹簧；8、第一伸缩弹簧；9、密闭板；10、支撑架；11、矩形槽；12、弹性卡柱；13、卡槽；14、第二伸缩弹簧；15、弧形卡头；16、斜块；17、压柱；18、连接盘。In the figure: 1. working bracket; 101. fixed template; 2. supporting frame; 3. telescopic cylinder; 4. moving template; 5. circular groove; 501. slider; 6. articulated frame; 7. receiving plate; 701. limit spring; 8. first telescopic spring; 9. sealing plate; 10. supporting frame; 11. rectangular groove; 12. elastic clamping column; 13. clamping groove; 14. second telescopic spring; 15. arc clamping head; 16. inclined block; 17. pressure column; 18. connecting plate.
具体实施方式Detailed ways
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
如图1至图3所示，本发明实施例所述的一种汽车变速器壳体压铸模具，包括工作支架1，所述工作支架1的上方安装有支撑框体2，所述支撑框体2的底部安装有伸缩气缸3，所述伸缩气缸3的伸缩端安装有动模板4，所述动模板4的表面开设有进液口，所述工作支架1的上表面与所述动模板4对应位置处安装有定模板101，所述定模板101和所述动模板4在合模时，所述定模板101和所述动模板4的结合处留有空隙，以形成为汽车变速器壳体的成型腔，所述定模板101的内部设置有顶料机构，所述顶料机构用以对成型后的汽车变速器壳体进行顶出。As shown in Figures 1 to 3, an automobile transmission housing die-casting mold described in an embodiment of the present invention includes a working bracket 1, a supporting frame 2 is installed above the working bracket 1, a telescopic cylinder 3 is installed at the bottom of the supporting frame 2, a movable template 4 is installed at the telescopic end of the telescopic cylinder 3, a liquid inlet is opened on the surface of the movable template 4, a fixed template 101 is installed at a position corresponding to the movable template 4 on the upper surface of the working bracket 1, and when the fixed template 101 and the movable template 4 are molded, a gap is left at the junction of the fixed template 101 and the movable template 4 to form a molding cavity for the automobile transmission housing, and a ejecting mechanism is arranged inside the fixed template 101, and the ejecting mechanism is used to eject the molded automobile transmission housing.
工作时，当对汽车变速器壳体进行压铸成型时，控制伸缩气缸3的伸缩端带动动模板4下移，使得动模板4与其对应的定模板101合模，之后通过其表面的进液口向定模板101和动模板4之间的空腔注入高压金属熔融液，待金属液冷却并压铸成型后，通过伸缩气缸3先带动动模板4上移，使得动模板4与定模板101脱离，之后再通过顶料机构将成型的汽车变速器壳体顶出即可，通过顶料机构的设置，能使得成型的汽车变速器壳体顶出动作连续，不会对压铸件产生多次冲击，有效地保证汽车变速器壳体的完整，尤其是薄壁零件的结构性能的完好。During operation, when the automobile transmission housing is die-cast, the telescopic end of the telescopic cylinder 3 is controlled to drive the movable platen 4 to move downward, so that the movable platen 4 and its corresponding fixed platen 101 are molded together, and then high-pressure molten metal is injected into the cavity between the fixed platen 101 and the movable platen 4 through the liquid inlet on its surface. After the molten metal is cooled and die-cast, the movable platen 4 is first driven to move upward by the telescopic cylinder 3, so that the movable platen 4 is separated from the fixed platen 101, and then the molded automobile transmission housing is ejected through the ejection mechanism. Through the setting of the ejection mechanism, the ejection action of the molded automobile transmission housing can be continuous, and multiple impacts will not be generated on the die-casting, thereby effectively ensuring the integrity of the automobile transmission housing, especially the structural performance of thin-walled parts.
所述动模板4的表面开设有多个出气孔，所述工作支架1的表面设置有与所述动模板4相适配的导向柱，所述导向柱用以对动模板4的移动位置进行导向；工作时，设置了出气孔，能将金属熔融液在注入成型腔内部时，其内部产生的气体会通过出气孔散出，从而能提高后续汽车变速器壳体成型质量。A plurality of air vents are provided on the surface of the movable template 4, and a guide column matched with the movable template 4 is provided on the surface of the working bracket 1, and the guide column is used to guide the moving position of the movable template 4; when working, the air vents are provided, and when the molten metal is injected into the molding cavity, the gas generated inside the molding cavity will be dispersed through the air vents, thereby improving the subsequent molding quality of the automobile transmission housing.
如图2至图7所示，所述定模板101的上表面开设有圆形槽5，所述圆形槽5的槽壁中心处滑动安装有滑块501，所述滑块501的上方设置有密闭板9，所述密闭板9的形状和所述圆形槽5的形状相适配，所述圆形槽5的槽壁内设置有顶出单元，所述顶出单元用以将密闭板9向上顶起，所述密闭板9的形状和所述汽车变速器壳体的底部形状相适配。As shown in Figures 2 to 7, a circular groove 5 is provided on the upper surface of the fixed template 101, and a slider 501 is slidably installed at the center of the groove wall of the circular groove 5. A sealing plate 9 is provided above the slider 501, and the shape of the sealing plate 9 is matched with the shape of the circular groove 5. An ejection unit is provided in the groove wall of the circular groove 5, and the ejection unit is used to lift the sealing plate 9 upwards. The shape of the sealing plate 9 is matched with the bottom shape of the automobile transmission housing.
工作时，在初始状态下，即定模板101和动模板4合模时，密闭板9处于圆形槽5槽内，且完全与圆形槽5贴合，此时定模板101的上表面为光滑的平面，参照附图5所示；当汽车变速器壳体压铸成型后，且定模板101和动模板4相互分离后，通过顶出单元可以将整个密闭板9以较快的速度向上顶起，而且由于密闭板9的形状和汽车变速器壳体底部形状相适配，故解决了现有技术中在脱模时是使用顶杆一次顶出，而顶杆的受力点位于与变速器壳体接触位置，无法覆盖变速器壳体，致使变速器壳体各处的结构无法保证均一完整的问题，有利于后续变速器壳体的使用。During operation, in the initial state, that is, when the fixed template 101 and the movable template 4 are molded together, the sealing plate 9 is in the circular groove 5 and is completely fitted with the circular groove 5. At this time, the upper surface of the fixed template 101 is a smooth plane, as shown in Figure 5; after the automobile transmission housing is die-cast and the fixed template 101 and the movable template 4 are separated from each other, the entire sealing plate 9 can be pushed up at a faster speed through the ejection unit, and because the shape of the sealing plate 9 is compatible with the bottom shape of the automobile transmission housing, the problem that the ejector rod is used for ejection at one time during demoulding in the prior art is solved, and the force point of the ejector rod is located at the contact position with the transmission housing and cannot cover the transmission housing, resulting in the problem that the structure of each part of the transmission housing cannot be guaranteed to be uniform and complete, which is beneficial to the subsequent use of the transmission housing.
所述顶出单元包括安装在滑块501外表面的多个铰接架6，每个所述铰接架6的表面均转动安装有承接板7，所述密闭板9设置在所述承接板7的上方，每个所述承接板7的下表面均安装有限位弹簧701，所述限位弹簧701远离所述承接板7的一侧与所述圆形槽5的槽壁连接，所述定模板101的内部设置有限位单元，所述限位单元用以对所述密闭板9进行限位。The ejection unit includes a plurality of articulated frames 6 installed on the outer surface of the slider 501, a receiving plate 7 is rotatably installed on the surface of each of the articulated frames 6, the sealed plate 9 is arranged above the receiving plate 7, a limiting spring 701 is installed on the lower surface of each of the receiving plates 7, and the side of the limiting spring 701 away from the receiving plate 7 is connected to the groove wall of the circular groove 5, and a limiting unit is arranged inside the fixed template 101, and the limiting unit is used to limit the sealed plate 9.
工作时，当定模板101和动模板4还未结合之前，且密闭板9未处于圆形槽5内部时，此时工作人员先向下按压密闭板9，使得密闭板9下压承接板7，承接板7呈一定角度地转动并压缩限位弹簧701，当密闭板9完全处于圆形槽5内部时，其会被限位单元进行限位并固定，参照附图5和图6所示；当变速器壳体成型结合后，且定模板101和动模板4分离时，控制限位单元使得其不再对密闭板9进行限位，随后在不同位置的限位弹簧701同步恢复下，能快速的带动承接板7和密闭板9向上升起，从而能快速的将成型的变速器壳体顶出，如此不仅能加快对成型的变速器壳体顶出，减少慢速顶料时变速器壳体与定模板101内壁的摩擦，而且能使得变速器壳体在顶出时其受力均匀，提高了变速器壳体的成型质量并方便对其的使用。During operation, before the fixed template 101 and the movable template 4 are combined, and the sealing plate 9 is not in the circular groove 5, the staff first presses the sealing plate 9 downward, so that the sealing plate 9 presses the receiving plate 7 downward, and the receiving plate 7 rotates at a certain angle and compresses the limit spring 701. When the sealing plate 9 is completely in the circular groove 5, it will be limited and fixed by the limiting unit, as shown in Figures 5 and 6; when the transmission housing is formed and combined, and the fixed template 101 and the movable template 4 are separated, the limiting unit is controlled so that it no longer limits the sealing plate 9, and then the limiting springs 701 at different positions are synchronously restored, which can quickly drive the receiving plate 7 and the sealing plate 9 to rise upward, so that the formed transmission housing can be quickly ejected, which can not only speed up the ejection of the formed transmission housing, reduce the friction between the transmission housing and the inner wall of the fixed template 101 during slow ejection, but also make the transmission housing evenly stressed during ejection, improve the molding quality of the transmission housing and facilitate its use.
如图5至图6所示，所述限位单元包括开设在定模板101内部的多个矩形槽11，每个所述矩形槽11的内部均滑动安装有弹性卡柱12，所述弹性卡柱12延伸至所述圆形槽5内，所述密闭板9的下方固接有多个支撑架10，每个所述支撑架10和每个所述弹性卡柱12呈一一对应设置，每个所述支撑架10的表面均开设有卡槽13，所述滑块501的底部安装有第一伸缩弹簧8，所述第一伸缩弹簧8安装在所述圆形槽5的槽壁中心处，所述定模板101的下方安装有驱动单元，所述驱动单元用以控制所有的弹性卡柱12移动。As shown in Figures 5 to 6, the limiting unit includes a plurality of rectangular grooves 11 opened inside the fixed template 101, and an elastic clamping column 12 is slidably installed inside each of the rectangular grooves 11, and the elastic clamping column 12 extends into the circular groove 5. A plurality of support frames 10 are fixedly connected below the sealing plate 9, and each of the support frames 10 and each of the elastic clamping columns 12 are arranged in a one-to-one correspondence. A clamping groove 13 is opened on the surface of each of the support frames 10, and a first telescopic spring 8 is installed at the bottom of the slider 501, and the first telescopic spring 8 is installed at the center of the groove wall of the circular groove 5. A driving unit is installed below the fixed template 101, and the driving unit is used to control the movement of all the elastic clamping columns 12.
工作时，当需要将密闭板9完全置于圆形槽5内部时，密闭板9下压滑块501时，滑块501会同时挤压第一伸缩弹簧8且不同位置的承接板7会发生转动，同时密闭板9会同时带动其地面的支撑架10沿着圆形槽5的槽壁下移，支撑架10的外表面会与弹性卡柱12的端部接触并挤压弹性卡柱12，当密闭板9完全置于圆形槽5内部时，此时弹性卡柱12的端部会卡于支撑架10的卡槽13内，如此来对密闭板9进行固定，参照附图5和图6所示；此时定模板101上表面为光滑面；当一次成型结束后，需要将变速器壳体去除时，通过驱动单元将所有的弹性卡柱12同步远离卡槽13，使得弹性卡柱12不再对卡槽13限位，之后在第一伸缩弹簧8和限位弹簧701的作用下，能快速的将密闭板9上移，并将变速器壳体顶出，操作较为方便。During operation, when the sealed plate 9 needs to be completely placed inside the circular groove 5, when the sealed plate 9 presses down the slider 501, the slider 501 will squeeze the first telescopic spring 8 at the same time, and the receiving plates 7 at different positions will rotate. At the same time, the sealed plate 9 will simultaneously drive the support frame 10 on the ground to move down along the groove wall of the circular groove 5, and the outer surface of the support frame 10 will contact and squeeze the end of the elastic clamping column 12. When the sealed plate 9 is completely placed inside the circular groove 5, the end of the elastic clamping column 12 will be stuck in the support The sealing plate 9 is fixed in the slot 13 of the support frame 10, as shown in Figures 5 and 6; at this time, the upper surface of the fixed template 101 is a smooth surface; when the transmission housing needs to be removed after the one-time molding is completed, all the elastic clamping columns 12 are synchronously moved away from the slot 13 through the driving unit, so that the elastic clamping columns 12 no longer limit the slot 13, and then under the action of the first telescopic spring 8 and the limit spring 701, the sealing plate 9 can be quickly moved up and the transmission housing can be pushed out, and the operation is more convenient.
需要说明的是，第一伸缩弹簧8和限位弹簧701的恢复力以及密闭板9的上移，可以足够将成型的变速器壳体顶出。It should be noted that the restoring force of the first telescopic spring 8 and the limit spring 701 and the upward movement of the sealing plate 9 are sufficient to push out the molded transmission housing.
所述弹性卡柱12靠近所述卡槽13的一侧固接有弧形卡头15，所述弧形卡头15的形状和所述卡槽13的形状相适配，所述卡槽13表面设置有圆角；工作时，设置了弧形卡头15，能方便其对支撑架10和密闭板9的卡接，使得密闭板9处于被固定状态，且在卡槽13的表面设置了圆角，能方便弧形卡头15卡入卡槽13内，并从其内部脱离而出。An arc-shaped clamping head 15 is fixedly connected to one side of the elastic clamping column 12 close to the clamping slot 13. The shape of the arc-shaped clamping head 15 is adapted to the shape of the clamping slot 13, and the surface of the clamping slot 13 is provided with rounded corners. When working, the arc-shaped clamping head 15 is provided to facilitate the clamping of the support frame 10 and the sealed plate 9, so that the sealed plate 9 is in a fixed state, and the rounded corners are provided on the surface of the clamping slot 13, which can facilitate the arc-shaped clamping head 15 to be clamped into the clamping slot 13 and detached from the inside thereof.
每个所述矩形槽11的槽壁均安装有第二伸缩弹簧14，所述第二伸缩弹簧14远离所述矩形槽11的槽壁与所述弹性卡柱12的端面连接。A second telescopic spring 14 is installed on the groove wall of each rectangular groove 11 , and the second telescopic spring 14 is connected to the end surface of the elastic clamping column 12 away from the groove wall of the rectangular groove 11 .
工作时，当支撑架10沿着圆形槽5槽壁下移时，支撑架10会挤压弧形卡头15、弹性卡柱12以及第二伸缩弹簧14，使第二伸缩弹簧14呈挤压状态；当卡槽13和弧形卡头15平行时，呈挤压状态的第二伸缩弹簧14会带动弧形卡头15完全卡入卡槽13内，确保密闭板9呈固定状态，方便后续金属熔融液的成型，且方便后续将成型的变速器壳体取出。During operation, when the support frame 10 moves downward along the wall of the circular groove 5, the support frame 10 will squeeze the arc-shaped clamping head 15, the elastic clamping column 12 and the second telescopic spring 14, so that the second telescopic spring 14 is in an extruded state; when the slot 13 and the arc-shaped clamping head 15 are parallel, the second telescopic spring 14 in an extruded state will drive the arc-shaped clamping head 15 to be completely clamped into the slot 13, ensuring that the sealing plate 9 is in a fixed state, facilitating the subsequent molding of the molten metal, and facilitating the subsequent removal of the molded transmission housing.
如图7至图9所示，所述驱动单元包括安装在所述工作支架1表面的油缸，所述油缸的伸缩端安装有连接盘18，所述连接盘18的顶端面安装有多个压柱17，多个所述压柱17和多个弹性顶杆呈一一对应设置，且每个所述压柱17分别贯穿至所述定模板101底部，所述弹性卡柱12的下表面安装有斜块16，所述压柱17的顶端与所述斜块16的斜面接触。As shown in Figures 7 to 9, the driving unit includes a cylinder installed on the surface of the working bracket 1, and a connecting plate 18 is installed at the telescopic end of the cylinder. A plurality of pressure columns 17 are installed on the top surface of the connecting plate 18. The plurality of pressure columns 17 and the plurality of elastic push rods are arranged in a one-to-one correspondence, and each of the pressure columns 17 respectively penetrates to the bottom of the fixed template 101, and an inclined block 16 is installed on the lower surface of the elastic clamping column 12, and the top end of the pressure column 17 contacts the inclined surface of the inclined block 16.
工作时，当需要将成型的变速器壳体顶出时，控制油缸的伸缩端带动连接盘18上移，连接盘18带动压柱17上移，使得压柱17的顶端压缩斜块16的倾斜面，由于弹性卡柱12滑动安装在矩形槽11内，故在斜块16受压下，斜块16会带动弹性卡柱12和弧形卡头15缓慢脱离卡槽13，之后在第一伸缩弹簧8和限位弹簧701的作用下，能快速的将密闭板9上移，并将变速器壳体顶出，如此不仅能加快对成型的变速器壳体顶出，减少慢速顶料时变速器壳体与定模板101内壁的摩擦，而且能使得变速器壳体在顶出时其受力均匀，提高了变速器壳体的成型质量。During operation, when the formed transmission housing needs to be ejected, the telescopic end of the control cylinder drives the connecting plate 18 to move upward, and the connecting plate 18 drives the pressure column 17 to move upward, so that the top end of the pressure column 17 compresses the inclined surface of the inclined block 16. Since the elastic clamping column 12 is slidably installed in the rectangular groove 11, the inclined block 16 will drive the elastic clamping column 12 and the arc-shaped clamping head 15 to slowly disengage from the clamping groove 13 under the pressure of the inclined block 16. Then, under the action of the first telescopic spring 8 and the limit spring 701, the sealing plate 9 can be quickly moved upward and the transmission housing can be ejected. This not only speeds up the ejection of the formed transmission housing and reduces the friction between the transmission housing and the inner wall of the fixed template 101 during slow ejection, but also makes the transmission housing evenly stressed during ejection, thereby improving the molding quality of the transmission housing.
所述压柱17与所述斜块16接触位置处转动安装有滚珠，所述滚珠转动设置在斜块16的倾斜面，设置了滚珠，能方便压柱17对斜块16的挤压，从而方便其带动弹性卡柱12的移动。A ball is rotatably installed at the contact position between the pressure column 17 and the inclined block 16. The ball is rotatably arranged on the inclined surface of the inclined block 16. The arrangement of the ball can facilitate the pressure column 17 to squeeze the inclined block 16, thereby facilitating the movement of the elastic clamping column 12.
所述定模板101的内部开设有与所述压柱17相适配的空槽，所述空槽的形状和所述压柱17形状相适配，工作时，由于多个压柱17和多个弹性卡柱12呈一一对应设置，故在压柱17上移时，不同位置的压柱17会压缩不同处的斜块16和弹性卡柱12，使所有的弹性卡柱12同步远离卡槽13，故能方便后续将变速器壳体的取出。The fixed template 101 has an empty groove inside that matches the pressure column 17. The shape of the empty groove matches the shape of the pressure column 17. During operation, since multiple pressure columns 17 and multiple elastic clamping columns 12 are arranged in a one-to-one correspondence, when the pressure columns 17 move upward, the pressure columns 17 at different positions will compress the inclined blocks 16 and elastic clamping columns 12 at different positions, so that all the elastic clamping columns 12 are synchronously moved away from the clamping grooves 13, so that the subsequent removal of the transmission housing can be facilitated.
工作时，当对汽车变速器壳体进行压铸成型时，控制伸缩气缸3的伸缩端带动动模板4下移，使得动模板4与其对应的定模板101合模，之后通过其表面的进液口向定模板101和动模板4之间的空腔注入高压金属熔融液，待金属液冷却并压铸成型后，通过伸缩气缸3先带动动模板4上移，使得动模板4与定模板101脱离，之后再通过顶料机构将成型的汽车变速器壳体顶出即可，通过顶料机构的设置，能使得成型的汽车变速器壳体顶出动作连续，不会对压铸件产生多次冲击，有效地保证汽车变速器壳体的完整，尤其是薄壁零件的结构性能的完好；在初始状态下，即定模板101和动模板4合模时，密闭板9处于圆形槽5槽内，且完全与圆形槽5贴合，此时定模板101的上表面为光滑的平面，参照附图5所示；当汽车变速器壳体压铸成型后，且定模板101和动模板4相互分离后，通过顶出单元可以将整个密闭板9以较快的速度向上顶起，而且由于密闭板9的形状和汽车变速器壳体底部形状相适配，故解决了现有技术中在脱模时是使用顶杆一次顶出，而顶杆的受力点位于与变速器壳体接触位置，无法覆盖变速器壳体，致使变速器壳体各处的结构无法保证均一完整的问题，有利于后续变速器壳体的使用。During operation, when the automobile transmission housing is die-cast, the telescopic end of the telescopic cylinder 3 is controlled to drive the movable platen 4 to move downward, so that the movable platen 4 and its corresponding fixed platen 101 are molded together, and then high-pressure molten metal is injected into the cavity between the fixed platen 101 and the movable platen 4 through the liquid inlet on its surface. After the molten metal is cooled and die-cast, the movable platen 4 is first driven upward by the telescopic cylinder 3 to separate the movable platen 4 from the fixed platen 101, and then the molded automobile transmission housing is ejected through the ejection mechanism. Through the setting of the ejection mechanism, the ejection action of the molded automobile transmission housing can be continuous, and multiple impacts will not be generated on the die-casting, which effectively ensures the integrity of the automobile transmission housing, especially the structural performance of thin-walled parts. In the initial state, that is, when the fixed template 101 and the movable template 4 are molded together, the sealing plate 9 is in the circular groove 5 and is completely fitted with the circular groove 5. At this time, the upper surface of the fixed template 101 is a smooth plane, as shown in Figure 5; after the automobile transmission housing is die-cast and the fixed template 101 and the movable template 4 are separated from each other, the entire sealing plate 9 can be pushed up at a faster speed through the ejection unit, and because the shape of the sealing plate 9 is compatible with the bottom shape of the automobile transmission housing, the problem that the ejector rod is used for ejection at one time during demoulding in the prior art is solved, and the force point of the ejector rod is located at the contact position with the transmission housing and cannot cover the transmission housing, resulting in the problem that the structure of the transmission housing at various locations cannot be guaranteed to be uniform and complete, which is beneficial to the subsequent use of the transmission housing.
当定模板101和动模板4还未结合之前，且密闭板9未处于圆形槽5内部时，此时工作人员先向下按压密闭板9，使得密闭板9下压承接板7，承接板7呈一定角度地转动并压缩限位弹簧701，当密闭板9完全处于圆形槽5内部时，其会被限位单元进行限位并固定，参照附图5和图6所示；当变速器壳体成型结合后，且定模板101和动模板4分离时，控制限位单元使得其不再对密闭板9进行限位，随后在不同位置的限位弹簧701同步恢复下，能快速的带动承接板7和密闭板9向上升起，从而能快速的将成型的变速器壳体顶出，如此不仅能加快对成型的变速器壳体顶出，减少慢速顶料时变速器壳体与定模板101内壁的摩擦，而且能使得变速器壳体在顶出时其受力均匀，提高了变速器壳体的成型质量并方便对其的使用；当需要将密闭板9完全置于圆形槽5内部时，密闭板9下压滑块501时，滑块501会同时挤压第一伸缩弹簧8且不同位置的承接板7会发生转动，同时密闭板9会同时带动其地面的支撑架10沿着圆形槽5的槽壁下移，支撑架10的外表面会与弹性卡柱12的端部接触并挤压弹性卡柱12，当密闭板9完全置于圆形槽5内部时，此时弹性卡柱12的端部会卡于支撑架10的卡槽13内，如此来对密闭板9进行固定，参照附图5和图6所示；此时定模板101上表面为光滑面；当一次成型结束后，需要将变速器壳体去除时，通过驱动单元将所有的弹性卡柱12同步远离卡槽13，使得弹性卡柱12不再对卡槽13限位，之后在第一伸缩弹簧8和限位弹簧701的作用下，能快速地将密闭板9上移，并将变速器壳体顶出，操作较为方便。When the fixed template 101 and the movable template 4 are not yet combined, and the sealing plate 9 is not in the circular groove 5, the staff first presses the sealing plate 9 downward, so that the sealing plate 9 presses the receiving plate 7, and the receiving plate 7 rotates at a certain angle and compresses the limit spring 701. When the sealing plate 9 is completely in the circular groove 5, it will be limited and fixed by the limiting unit, as shown in Figures 5 and 6; when the transmission housing is formed and combined, and the fixed template 101 and the movable template 4 are separated, the limiting unit is controlled so that it no longer limits the sealing plate 9, and then the limiting springs 701 at different positions are restored synchronously, which can quickly drive the receiving plate 7 and the sealing plate 9 to rise upward, so that the formed transmission housing can be quickly ejected, which can not only speed up the ejection of the formed transmission housing, reduce the friction between the transmission housing and the inner wall of the fixed template 101 during slow ejection, but also make the transmission housing evenly stressed during ejection, thereby improving the molding quality of the transmission housing and facilitating its use; when it is needed When the sealed plate 9 is to be completely placed inside the circular groove 5, when the sealed plate 9 presses down the slider 501, the slider 501 will squeeze the first telescopic spring 8 at the same time and the receiving plates 7 at different positions will rotate, and the sealed plate 9 will simultaneously drive the support frame 10 on the ground to move down along the groove wall of the circular groove 5, and the outer surface of the support frame 10 will contact and squeeze the end of the elastic clamping column 12. When the sealed plate 9 is completely placed inside the circular groove 5, the end of the elastic clamping column 12 will be stuck in the clamping groove 13 of the support frame 10, so as to fix the sealed plate 9, as shown in Figures 5 and 6; at this time, the upper surface of the fixed template 101 is a smooth surface; when the primary molding is completed and the transmission housing needs to be removed, all the elastic clamping columns 12 are synchronously moved away from the clamping groove 13 by the driving unit, so that the elastic clamping column 12 no longer limits the clamping groove 13, and then under the action of the first telescopic spring 8 and the limit spring 701, the sealed plate 9 can be quickly moved up and the transmission housing can be ejected, which is convenient to operate.
当需要将成型的变速器壳体顶出时，控制油缸的伸缩端带动连接盘18上移，连接盘18带动压柱17上移，使得压柱17的顶端压缩斜块16的倾斜面，由于弹性卡柱12滑动安装在矩形槽11内，故在斜块16受压下，斜块16会带动弹性卡柱12和弧形卡头15缓慢脱离卡槽13，之后在第一伸缩弹簧8和限位弹簧701的作用下，能快速的将密闭板9上移，并将变速器壳体顶出，如此不仅能加快对成型的变速器壳体顶出，减少慢速顶料时变速器壳体与定模板101内壁的摩擦，而且能使得变速器壳体在顶出时其受力均匀，提高了变速器壳体的成型质量；由于多个压柱17和多个弹性卡柱12呈一一对应设置，故在压柱17上移时，不同位置的压柱17会压缩不同处的斜块16和弹性卡柱12，使所有的弹性卡柱12同步远离卡槽13，故能方便后续将变速器壳体的取出。When the formed transmission housing needs to be ejected, the telescopic end of the control cylinder drives the connecting plate 18 to move upward, and the connecting plate 18 drives the pressure column 17 to move upward, so that the top of the pressure column 17 compresses the inclined surface of the inclined block 16. Since the elastic clamping column 12 is slidably installed in the rectangular groove 11, the inclined block 16 will drive the elastic clamping column 12 and the arc-shaped clamping head 15 to slowly disengage from the clamping groove 13 under the pressure of the inclined block 16. Then, under the action of the first telescopic spring 8 and the limit spring 701, the sealing plate 9 can be quickly moved upward and the transmission housing can be ejected. It can not only speed up the ejection of the formed transmission housing and reduce the friction between the transmission housing and the inner wall of the fixed template 101 during slow ejection, but also make the transmission housing evenly stressed during ejection, thereby improving the molding quality of the transmission housing; since the multiple pressure columns 17 and the multiple elastic clamping columns 12 are arranged in a one-to-one correspondence, when the pressure columns 17 move upward, the pressure columns 17 at different positions will compress the inclined blocks 16 and the elastic clamping columns 12 at different positions, so that all the elastic clamping columns 12 are synchronously away from the clamping grooves 13, so that the subsequent removal of the transmission housing can be facilitated.
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
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