WO2017025029A1 - Method of realizing forging of forging blank without trimming - Google Patents

Method of realizing forging of forging blank without trimming Download PDF

Info

Publication number
WO2017025029A1
WO2017025029A1 PCT/CN2016/094328 CN2016094328W WO2017025029A1 WO 2017025029 A1 WO2017025029 A1 WO 2017025029A1 CN 2016094328 W CN2016094328 W CN 2016094328W WO 2017025029 A1 WO2017025029 A1 WO 2017025029A1
Authority
WO
WIPO (PCT)
Prior art keywords
forging
blank
wedge
hydraulic cylinder
slider
Prior art date
Application number
PCT/CN2016/094328
Other languages
French (fr)
Chinese (zh)
Inventor
曹立新
黄永刚
曹坤
吴忠太
Original Assignee
曹立新
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 曹立新 filed Critical 曹立新
Publication of WO2017025029A1 publication Critical patent/WO2017025029A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses

Definitions

  • the invention relates to a forging process for forging a blank, in particular to a method for forging a forged blank to achieve no flash forging.
  • the present invention proposes a method for forging blanks without flashing forging.
  • the technical scheme of the invention is: a method for realizing no forging forging of a forged blank, characterized in that: special forging equipment and special forging mold are adopted;
  • the structure of the special forging equipment includes: a left column, a right column, an upper beam, a lower beam, a slider, a main hydraulic cylinder, a lower top hydraulic cylinder, a left column, a right column, an upper beam, and a lower beam to form a frame, and a slider
  • the guide cylinder is guided on the left column and the right column, the main hydraulic cylinder is mounted on the upper beam, the main hydraulic cylinder drives the slider; the lower top hydraulic cylinder is installed under the lower beam; the left column and the right column are respectively mounted with the left electric motor
  • the screw mechanism and the right electric screw mechanism; the left electric screw mechanism and the right electric screw mechanism have the same structure.
  • the specific structure is: two motors pass the first gear to transmit the power to the flywheel, and the flywheel transmits the power to the spiral pair. The power is transmitted to the slider by the screw pair to realize the power output;
  • the upper part of the slider is respectively provided with a left fixed wedge and a right fixed wedge; the lower part of the upper beam is provided with a wedge clamping mechanism, and the wedge clamping mechanism comprises a left wedge clamping mechanism and a right wedge clamping mechanism, left
  • the wedge clamping mechanism consists of a small hydraulic cylinder on the left side and a left movable wedge.
  • the left small hydraulic cylinder drives the left movable wedge.
  • the right wedge clamping mechanism consists of a right small hydraulic cylinder and a right movable wedge.
  • the small hydraulic cylinder drives the right movable wedge; the upper end surface of the left movable wedge and the upper end surface of the right movable wedge respectively slidably cooperate with the lower end surface of the upper beam;
  • the wedge clamping mechanism locks the slider to overcome the tension generated during forging; the left electric screw mechanism and the right electric screw mechanism realize rapid extrusion forging in the lateral direction;
  • the heated blank is placed in the lower mold, and the special forging equipment slider drives the upper mold to move quickly and the lower mold to close under the vertical downward force of the main hydraulic cylinder.
  • the wedge is closed.
  • the clamping mechanism forms a clamping mold of the upper and lower molds;
  • the electric screw mechanism disposed laterally on the special forging press rapidly pushes the extruded mandrel to extrude the blank, so that the blank fills the cavity, and the blank without the flash is obtained;
  • the electric screw mechanism drives the pressing mandrel to return to position; further, the wedge clamping mechanism of the special forging device returns to the position; finally, the slider returns to the position, and the blank without the flash is ejected through the topping mechanism.
  • the invention has the beneficial effects that: because of the new blank forging process, the special forging equipment is used to close the mold first, and then the blank is formed into a blank without flash, which greatly reduces the forging step and saves a lot of raw materials.
  • the blank can be reduced by about 5%-20%, and the material cost can be saved by about 20%-40%.
  • FIG. 1 is a schematic view of a dedicated forging apparatus according to the present invention.
  • Figure 2 is a right side elevational view of a dedicated forging apparatus in accordance with the present invention.
  • Figure 3 is a block diagram showing an improvement of the gear blank of the present invention as a result of the modification of the process of the present invention.
  • Fig. 4 is a schematic view showing a parting surface of a gear blank of the present invention.
  • Figure 5 is a three-dimensional diagram of a gear blank forging die and blank of the present invention.
  • Fig. 6 is a three-dimensional diagram of a mold and a final forging after the forging of the gear blank is exemplified in the present invention.
  • the special forging equipment shown in FIG. 1 includes a left column 1, a right column 13, an upper beam 7, a lower beam 15, a slider 10, a main hydraulic cylinder 6, a lower top hydraulic cylinder 14, a left column 1, and a right column 13
  • the upper beam 7 and the lower beam 15 form a frame
  • the slider 10 is guided on the left column 1 and the right column 13 through the guide pair
  • the main hydraulic cylinder 6 is mounted on the upper beam 7, the main hydraulic pressure
  • the cylinder 6 drives the slider 10;
  • the lower top hydraulic cylinder 14 is mounted under the lower beam, and the left and right columns are respectively mounted with a left electric screw mechanism 2 and a right electric screw mechanism 12;
  • the upper surface of the slider is respectively provided with a left fixed wedge Block 5, right fixed wedge 9;
  • under the upper beam is provided with a wedge clamping mechanism, the wedge clamping mechanism comprises a left wedge clamping mechanism, a right wedge clamping mechanism, and the left wedge clamping mechanism is from the left side
  • the slider 10 When in use, the slider 10 is moved down into position, and the wedge clamping mechanism locks the slider to overcome the tension generated during forging; the left electric screw mechanism and the right electric screw mechanism realize rapid extrusion forging in the lateral direction.
  • the structure of the left electric screw mechanism and the right electric screw mechanism is the same, and the structure of the right electric screw mechanism is: the two motors 1204 transmit power to the flywheel through the first gear 1205. 1203, the power is transmitted to the screw pair 1201 by the flywheel 1203, and the power is transmitted to the slider 1202 by the screw pair 1201, thereby realizing the power output of the electric screw mechanism.
  • the lower top hydraulic cylinder can adjust the tilt angle according to different products.
  • the main function of the forging device shown in FIG. 1 is as follows: the slider can quickly close (or open) the mold vertically (or upward) under the power of the main hydraulic cylinder; close (or open) the mold After that, the two cylinders on the left and right columns respectively drive the wedge to engage (or exit) between the upper beam and the slider to realize mold locking (or unlocking); after locking (or unlocking) the mold, the left and right lateral movements
  • the two electric screw mechanism with active punch can perform rapid extrusion forging (or retraction); when the forging is required, the top material mechanism can adjust the tilt angle of the top rod according to different products.
  • the final forging die is divided into four parts, upper mold 24, lower mold 25, left extrusion punch 27, right extrusion punch 28, and in the upper mold, the lower There are two transverse pressing passages between the molds, and the left pressing punch 27 and the right pressing punch 28 are cooperatively disposed in the transverse pressing passage;
  • the left and right electric screw mechanisms quickly push the left pressing punch 27 (left pressing punch) According to the shape and size of the left inner blind hole structure of the gear blank) and the right extrusion punch 28 (the right extrusion punch is made according to the shape and size of the right inner blind hole structure of the gear blank), the blank is extruded, and the blank is extruded.
  • the inner blind hole structure simultaneously fills the blank into the cavity; then, the electric screw mechanism drives the two pressing punches back; then, the wedge clamping mechanism returns to the position; finally, the slider drives the upper die back, as shown in FIG. 6.
  • the non-flashing gear blank 29 is obtained, and the forging process is completed to realize the process of forging the gear blank without flash.
  • the weight of the 1700KW-512 gear blank produced by the original forging process is 20.5Kg, and the raw material is 22.7Kg.
  • the 1700KW-512 gear blank produced by the forging process invented by the invention is 17.3Kg, and the raw material used is also 17.3Kg; the new process and the old process are compared: the weight loss of the blank is 2.2Kg, the weight loss is 10.7%; the raw material is saved 5.4Kg, saving 23.8%.

Abstract

A method of realizing forging of a forging blank without trimming. The method is characterized in utilization of a dedicated forging apparatus and dedicated forging die. The method particularly comprises the following steps: first, a heated blank is put into a lower die (25); when an upper die and the lower die (24, 25) are closed together, wedge die-clamping mechanisms clamp the upper and lower dies (24, 25); after the dies are clamped, electric screw mechanisms (2, 12) transversely disposed on a dedicated forging apparatus rapidly push extrusion mandrels to extrude the blank, such that the blank fills a die cavity to obtain a trimming-free blank; and then, the electric screw mechanisms (2, 12) drive the extrusion mandrels to return, thereby the wedge die-clamping mechanisms of the dedicated forging apparatus return, and lastly, a sliding block (10) returns, causing the trimming-free blank to be ejected by an ejecting mechanism. The blank forging process uses the dedicated forging apparatus, closes up the dies first and then performs impact extrusion to form the trimming-free blank, thereby greatly reducing forging process steps and also saving a great amount of raw materials.

Description

一种锻造毛坯实现无飞边锻造的方法Method for realizing no-flash forging by forging blank 技术领域Technical field
本发明是一种锻造毛坯的锻造工艺方法，具体是一种锻造毛坯实现无飞边锻造的方法。The invention relates to a forging process for forging a blank, in particular to a method for forging a forged blank to achieve no flash forging.
背景技术Background technique
现今的锻造毛坯大多是使用常规锻压设备锻造生产出来的，基本上都带有飞边，造成材料利用率达不到100％，大部分在70％-90％之间，难以满足锻造企业节能降耗、降低成本的要求。Most of today's forged blanks are forged using conventional forging equipment, which basically have flash edges, resulting in a material utilization rate of less than 100%, mostly between 70% and 90%, which is difficult to meet the energy saving of forging enterprises. Consumption and cost reduction requirements.
发明内容Summary of the invention
为了克服现今飞边锻造的工艺方法在生产过程中的出现的诸多不足之处，实现无飞边锻造，降低材料成本和能耗，本发明提出一种锻造毛坯实现无飞边锻造的方法。In order to overcome the shortcomings of the current flash forging process in the production process, to achieve no-flash forging, reduce material cost and energy consumption, the present invention proposes a method for forging blanks without flashing forging.
本发明的技术方案为：一种锻造毛坯实现无飞边锻造的方法，其特征在于：采用专用锻造设备、专用锻造模具；The technical scheme of the invention is: a method for realizing no forging forging of a forged blank, characterized in that: special forging equipment and special forging mold are adopted;
专用锻造设备的结构为：包括左立柱、右立柱、上梁、下梁、滑块、主液压缸、下顶料液压缸，左立柱、右立柱、上梁、下梁构成机架，滑块通过导向副在左立柱、右立柱上导向，主液压缸安装在上梁上，主液压缸驱动滑块；下顶料液压缸安装在下梁的下面；左立柱、右立柱上分别安装有左电动螺旋机构、右电动螺旋机构；左电动螺旋机构、右电动螺旋机构的结构相同，具体结构为：由两个电机经过一级齿轮把动力传递给飞轮，由飞轮再把动力传递给螺旋副，再由螺旋副把动力传递给滑块，从而实现动力输出；The structure of the special forging equipment includes: a left column, a right column, an upper beam, a lower beam, a slider, a main hydraulic cylinder, a lower top hydraulic cylinder, a left column, a right column, an upper beam, and a lower beam to form a frame, and a slider The guide cylinder is guided on the left column and the right column, the main hydraulic cylinder is mounted on the upper beam, the main hydraulic cylinder drives the slider; the lower top hydraulic cylinder is installed under the lower beam; the left column and the right column are respectively mounted with the left electric motor The screw mechanism and the right electric screw mechanism; the left electric screw mechanism and the right electric screw mechanism have the same structure. The specific structure is: two motors pass the first gear to transmit the power to the flywheel, and the flywheel transmits the power to the spiral pair. The power is transmitted to the slider by the screw pair to realize the power output;
滑块的上面分别设有左固定楔块、右固定楔块；上梁的下面设有楔块锁模机构，楔块锁模机构包括左楔块锁模机构、右楔块锁模机构，左楔块锁模机构由左侧小液压缸、左活动楔块组成，左侧小液压缸驱动左活动楔块；右楔块锁模机构由右侧小液压缸、右活动楔块组成，右侧小液压缸驱动右活动楔块；左活动楔块的上端面、右活动楔块的上端面分别与上梁的下端面滑动配合；The upper part of the slider is respectively provided with a left fixed wedge and a right fixed wedge; the lower part of the upper beam is provided with a wedge clamping mechanism, and the wedge clamping mechanism comprises a left wedge clamping mechanism and a right wedge clamping mechanism, left The wedge clamping mechanism consists of a small hydraulic cylinder on the left side and a left movable wedge. The left small hydraulic cylinder drives the left movable wedge. The right wedge clamping mechanism consists of a right small hydraulic cylinder and a right movable wedge. The small hydraulic cylinder drives the right movable wedge; the upper end surface of the left movable wedge and the upper end surface of the right movable wedge respectively slidably cooperate with the lower end surface of the upper beam;
使用时，滑块下移到位，楔块锁模机构锁紧滑块，克服锻压时产生的张力；左电动螺旋机构、右电动螺旋机构，横向实现快速挤压锻造；When in use, the slider is moved down into position, the wedge clamping mechanism locks the slider to overcome the tension generated during forging; the left electric screw mechanism and the right electric screw mechanism realize rapid extrusion forging in the lateral direction;
专用锻造模具，包括上模、下模，上模、下模在合模状态下，上模与下模之间设有1-2个横向挤压通道，横向挤压通道中配合设有挤压芯棒；Special forging mold, including upper mold, lower mold, upper mold and lower mold, in the mold clamping state, there are 1-2 transverse extrusion passages between the upper mold and the lower mold, and the transverse extrusion passage is matched with extrusion Mandrel
实现工艺过程的具体步骤如下： The specific steps to achieve the process are as follows:
首先，把加热的坯料放入下模中，专用锻造设备滑块在主液压缸垂直向下的动力作用下，带动上模快速移动与下模进行闭合，上、下模具闭合后，由楔块锁模机构形成上、下模具的锁模；Firstly, the heated blank is placed in the lower mold, and the special forging equipment slider drives the upper mold to move quickly and the lower mold to close under the vertical downward force of the main hydraulic cylinder. After the upper and lower molds are closed, the wedge is closed. The clamping mechanism forms a clamping mold of the upper and lower molds;
锁模后，专用锻造压力机上横向设置的电动螺旋机构快速推动挤压芯棒挤压坯料，使坯料充满模腔，得到无飞边的毛坯；After the clamping, the electric screw mechanism disposed laterally on the special forging press rapidly pushes the extruded mandrel to extrude the blank, so that the blank fills the cavity, and the blank without the flash is obtained;
然后，电动螺旋机构带动挤压芯棒回位；进而，专用锻造设备的楔块锁模机构回位；最后，滑块回位，通过顶料机构顶出无飞边的毛坯。Then, the electric screw mechanism drives the pressing mandrel to return to position; further, the wedge clamping mechanism of the special forging device returns to the position; finally, the slider returns to the position, and the blank without the flash is ejected through the topping mechanism.
本发明的有益效果是：因为新的毛坯锻造工艺，使用专用锻造设备先使模具闭合，后冲挤形成无飞边的毛坯，既大幅度减少了锻造工步，又节约了大量原材料。使用本发明的工艺方法进行毛坯锻造生产，可以使毛坯减重5％-20％左右，节约材料成本20％-40％左右。The invention has the beneficial effects that: because of the new blank forging process, the special forging equipment is used to close the mold first, and then the blank is formed into a blank without flash, which greatly reduces the forging step and saves a lot of raw materials. By using the process method of the invention for rough forging production, the blank can be reduced by about 5%-20%, and the material cost can be saved by about 20%-40%.
附图说明DRAWINGS
图1是本发明涉及的专用锻造设备示意图。1 is a schematic view of a dedicated forging apparatus according to the present invention.
图2是本发明涉及的专用锻造设备右视图。Figure 2 is a right side elevational view of a dedicated forging apparatus in accordance with the present invention.
图3是本发明举例齿轮毛坯由于应用本发明的工艺方法改进后的结构简图。Figure 3 is a block diagram showing an improvement of the gear blank of the present invention as a result of the modification of the process of the present invention.
图4是本发明举例齿轮毛坯的分模面示意图。Fig. 4 is a schematic view showing a parting surface of a gear blank of the present invention.
图5是本发明举例齿轮毛坯锻造模具及坯料的三维简图。Figure 5 is a three-dimensional diagram of a gear blank forging die and blank of the present invention.
图6是本发明举例齿轮毛坯锻造完毕后的模具及终锻件三维简图。Fig. 6 is a three-dimensional diagram of a mold and a final forging after the forging of the gear blank is exemplified in the present invention.
其中：1为左立柱；2为左电动螺旋机构；3为左侧小液压缸；4为左活动楔块；5为左固定楔块；6为主液压缸；7为上梁；8为右活动楔块；9为右固定楔块；10为滑块；11为右侧小液压缸；12为右电动螺旋机构；1201为螺旋副；1202为滑块；1203为飞轮；1204为电机；1205为一级齿轮；13为右立柱；14为下顶料液压缸；15为下梁；20为齿轮毛坯；21为第一(圆柱形)分模面；22为第二(圆柱形)分模面；23为第三(水平)分模面；24为上模；25为下模；26为坯料；27为左挤压冲头；28为右挤压冲头；29为最终成型的齿轮毛坯。Wherein: 1 is the left column; 2 is the left electric screw mechanism; 3 is the left small hydraulic cylinder; 4 is the left movable wedge; 5 is the left fixed wedge; 6 is the main hydraulic cylinder; 7 is the upper beam; 8 is the right Active wedge; 9 is the right fixed wedge; 10 is the slider; 11 is the right small hydraulic cylinder; 12 is the right electric screw mechanism; 1201 is the spiral pair; 1202 is the slider; 1203 is the flywheel; 1204 is the motor; It is a first gear; 13 is a right column; 14 is a lower top hydraulic cylinder; 15 is a lower beam; 20 is a gear blank; 21 is a first (cylindrical) parting surface; 22 is a second (cylindrical) parting 23; is the third (horizontal) parting surface; 24 is the upper mold; 25 is the lower mold; 26 is the blank; 27 is the left extrusion punch; 28 is the right extrusion punch; 29 is the final formed gear blank .
具体实施方式detailed description
如图1所示的专用锻造设备，包括左立柱1、右立柱13、上梁7、下梁15、滑块10、主液压缸6、下顶料液压缸14，左立柱1、右立柱13、上梁7、下梁15构成机架，滑块10通过导向副在左立柱1、右立柱13上导向，主液压缸6安装在上梁7上，主液压 缸6驱动滑块10；下顶料液压缸14安装在下梁的下面，左立柱、右立柱上分别安装有左电动螺旋机构2、右电动螺旋机构12；滑块的上面分别设有左固定楔块5、右固定楔块9；上梁的下面设有楔块锁模机构，楔块锁模机构包括左楔块锁模机构、右楔块锁模机构，左楔块锁模机构由左侧小液压缸3、左活动楔块4组成，左侧小液压缸3驱动左活动楔块4；右楔块锁模机构由右侧小液压缸11、右活动楔块8组成，右侧小液压缸11驱动右活动楔块8；左活动楔块4的上端面、右活动楔块8的上端面分别与上梁7的下端面滑动配合；The special forging equipment shown in FIG. 1 includes a left column 1, a right column 13, an upper beam 7, a lower beam 15, a slider 10, a main hydraulic cylinder 6, a lower top hydraulic cylinder 14, a left column 1, and a right column 13 The upper beam 7 and the lower beam 15 form a frame, and the slider 10 is guided on the left column 1 and the right column 13 through the guide pair, and the main hydraulic cylinder 6 is mounted on the upper beam 7, the main hydraulic pressure The cylinder 6 drives the slider 10; the lower top hydraulic cylinder 14 is mounted under the lower beam, and the left and right columns are respectively mounted with a left electric screw mechanism 2 and a right electric screw mechanism 12; the upper surface of the slider is respectively provided with a left fixed wedge Block 5, right fixed wedge 9; under the upper beam is provided with a wedge clamping mechanism, the wedge clamping mechanism comprises a left wedge clamping mechanism, a right wedge clamping mechanism, and the left wedge clamping mechanism is from the left side The small hydraulic cylinder 3 and the left movable wedge 4 are composed, and the left small hydraulic cylinder 3 drives the left movable wedge 4; the right wedge clamping mechanism is composed of the right small hydraulic cylinder 11 and the right movable wedge 8 and the right small hydraulic pressure The cylinder 11 drives the right movable wedge 8; the upper end surface of the left movable wedge 4 and the upper end surface of the right movable wedge 8 are respectively slidably engaged with the lower end surface of the upper beam 7;
使用时，滑块10下移到位，楔块锁模机构锁紧滑块，克服锻压时产生的张力；左电动螺旋机构、右电动螺旋机构横向实现快速挤压锻造。When in use, the slider 10 is moved down into position, and the wedge clamping mechanism locks the slider to overcome the tension generated during forging; the left electric screw mechanism and the right electric screw mechanism realize rapid extrusion forging in the lateral direction.
如图1、图2所示，在本发明中，左电动螺旋机构及右电动螺旋机构的结构相同，右电动螺旋机构的结构是：由两个电机1204经过一级齿轮1205把动力传递给飞轮1203,由飞轮1203再把动力传递给螺旋副1201，再由螺旋副1201把动力传递给滑块1202，从而实现电动螺旋机构的动力输出。As shown in FIG. 1 and FIG. 2, in the present invention, the structure of the left electric screw mechanism and the right electric screw mechanism is the same, and the structure of the right electric screw mechanism is: the two motors 1204 transmit power to the flywheel through the first gear 1205. 1203, the power is transmitted to the screw pair 1201 by the flywheel 1203, and the power is transmitted to the slider 1202 by the screw pair 1201, thereby realizing the power output of the electric screw mechanism.
下顶料液压缸可根据不同的产品，来调整倾斜角度。The lower top hydraulic cylinder can adjust the tilt angle according to different products.
本发明所采用如图1所示的锻造设备的主要功能是：滑块在主液压缸的动力作用下能垂直向下(或向上)进行快速闭合(或打开)模具；闭合(或打开)模具后，左、右两立柱上的两油缸分别带动楔块能卡入(或退出)上梁与滑块之间实现模具闭锁(或开锁)；闭锁(或开锁)模具以后，左、右横向运动的两电动螺旋机构带能动冲头能进行快速挤压锻造(或退回)；需要顶出锻件时，顶料机构可根据不同的产品，能调整顶料杆的倾斜角度。The main function of the forging device shown in FIG. 1 is as follows: the slider can quickly close (or open) the mold vertically (or upward) under the power of the main hydraulic cylinder; close (or open) the mold After that, the two cylinders on the left and right columns respectively drive the wedge to engage (or exit) between the upper beam and the slider to realize mold locking (or unlocking); after locking (or unlocking) the mold, the left and right lateral movements The two electric screw mechanism with active punch can perform rapid extrusion forging (or retraction); when the forging is required, the top material mechanism can adjust the tilt angle of the top rod according to different products.
例举本发明的工艺方法应用到1700KW-512齿轮毛坯锻造生产的具体过程，说明本发明应用到实际锻造生产的具体实施方式。The specific process of applying the process of the present invention to the forging production of 1700 KW-512 gear blanks is exemplified, and the specific embodiment of the present invention applied to actual forging production is explained.
本发明带来的毛坯和锻造模具的改进：由于专用锻造设备的使用，如图3所示的齿轮毛坯，取消毛坯外圆轮廓的拔模斜度和A、B、C处内盲孔壁的拔模斜度)；再按图4所示的三个分模面的方式，21为第一(圆柱形)分模面，22为第二(圆柱形)分模面，23为第三(水平)分模面，如图4所示，把终锻模具分为四个部分，上模24、下模25、左挤压冲头27、右挤压冲头28，并且在上模、下模之间设有2个横向挤压通道，左挤压冲头27、右挤压冲头28配合设置在横向挤压通道中；Improvement of blank and forging die brought by the invention: Due to the use of special forging equipment, the gear blank shown in Fig. 3 cancels the draft angle of the outer contour of the blank and the blind hole wall in the A, B and C portions. Draft angle); then according to the three parting surfaces shown in Figure 4, 21 is the first (cylindrical) parting surface, 22 is the second (cylindrical) parting surface, 23 is the third ( Horizontal) parting surface, as shown in Fig. 4, the final forging die is divided into four parts, upper mold 24, lower mold 25, left extrusion punch 27, right extrusion punch 28, and in the upper mold, the lower There are two transverse pressing passages between the molds, and the left pressing punch 27 and the right pressing punch 28 are cooperatively disposed in the transverse pressing passage;
详细描述应用本发明的工艺方法生产齿轮毛坯的锻造过程：如图5所示，把加热的坯料 26放入下模25的模腔内，在专用锻造设备(采用图1所示的专用锻造设备)上，滑块在主液压缸垂直向下的动力作用下，快速带动上模24与下模25闭合，上、下模具闭合后，楔块锁模机构形成上模24、下模25的锁模，此时左、右两电动螺旋机构快速推动左挤压冲头27(左挤压冲头根据齿轮毛坯左内盲孔结构的形状及尺寸制作)和右挤压冲头28(右挤压冲头根据齿轮毛坯右内盲孔结构的形状及尺寸制作)挤压坯料，在挤压出毛坯两内盲孔结构的同时使坯料充满模腔；然后，电动螺旋机构带动两挤压冲头回位；然后，楔块锁模机构回位；最后，滑块带动上模回位，如图6所示，得到无飞边的齿轮毛坯29，完成锻造过程，实现无飞边锻造齿轮毛坯的工艺方法。原锻造工艺生产出来的1700KW-512齿轮毛坯重量为20.5Kg，使用原材料22.7Kg。应用本人发明的锻造工艺方法生产出来的1700KW-512齿轮毛坯为17.3Kg，使用原材料也为17.3Kg；新工艺和老工艺对比：毛坯减重2.2Kg，减重10.7％；节约原材料5.4Kg，节约23.8％。DETAILED DESCRIPTION The forging process for producing a gear blank using the process of the present invention: as shown in Figure 5, the heated blank 26 is placed in the cavity of the lower mold 25, and in the special forging equipment (using the special forging equipment shown in Fig. 1), the slider rapidly drives the upper mold 24 and the lower mold under the vertical downward force of the main hydraulic cylinder. 25 is closed, after the upper and lower molds are closed, the wedge clamping mechanism forms a clamping mode of the upper mold 24 and the lower mold 25. At this time, the left and right electric screw mechanisms quickly push the left pressing punch 27 (left pressing punch) According to the shape and size of the left inner blind hole structure of the gear blank) and the right extrusion punch 28 (the right extrusion punch is made according to the shape and size of the right inner blind hole structure of the gear blank), the blank is extruded, and the blank is extruded. The inner blind hole structure simultaneously fills the blank into the cavity; then, the electric screw mechanism drives the two pressing punches back; then, the wedge clamping mechanism returns to the position; finally, the slider drives the upper die back, as shown in FIG. 6. As shown, the non-flashing gear blank 29 is obtained, and the forging process is completed to realize the process of forging the gear blank without flash. The weight of the 1700KW-512 gear blank produced by the original forging process is 20.5Kg, and the raw material is 22.7Kg. The 1700KW-512 gear blank produced by the forging process invented by the invention is 17.3Kg, and the raw material used is also 17.3Kg; the new process and the old process are compared: the weight loss of the blank is 2.2Kg, the weight loss is 10.7%; the raw material is saved 5.4Kg, saving 23.8%.
以上，列举了齿轮毛坯应用本发明实现的过程。本发明不局限于此，前述发明内容部分的技术方案才是本发明保护的范围。 Above, the process of applying the present invention to the gear blank is exemplified. The present invention is not limited thereto, and the technical solution of the foregoing summary of the invention is the scope of protection of the present invention.

Claims (1)

  1. 一种锻造毛坯实现无飞边锻造的方法，其特征在于：采用专用锻造设备、专用锻造模具；The invention relates to a method for realizing a forging blank without a flash forging, which is characterized in that: a special forging device and a special forging die are used;
    专用锻造设备的结构为：包括左立柱、右立柱、上梁、下梁、滑块、主液压缸、下顶料液压缸，左立柱、右立柱、上梁、下梁构成机架，滑块通过导向副在左立柱、右立柱上导向，主液压缸安装在上梁上，主液压缸驱动滑块；下顶料液压缸安装在下梁的下面；左立柱、右立柱上分别安装有左电动螺旋机构、右电动螺旋机构；左电动螺旋机构、右电动螺旋机构的结构相同，具体结构为：由两个电机经过一级齿轮把动力传递给飞轮，由飞轮再把动力传递给螺旋副，再由螺旋副把动力传递给滑块，从而实现动力输出；The structure of the special forging equipment includes: a left column, a right column, an upper beam, a lower beam, a slider, a main hydraulic cylinder, a lower top hydraulic cylinder, a left column, a right column, an upper beam, and a lower beam to form a frame, and a slider The guide cylinder is guided on the left column and the right column, the main hydraulic cylinder is mounted on the upper beam, the main hydraulic cylinder drives the slider; the lower top hydraulic cylinder is installed under the lower beam; the left column and the right column are respectively mounted with the left electric motor The screw mechanism and the right electric screw mechanism; the left electric screw mechanism and the right electric screw mechanism have the same structure. The specific structure is: two motors pass the first gear to transmit the power to the flywheel, and the flywheel transmits the power to the spiral pair. The power is transmitted to the slider by the screw pair to realize the power output;
    滑块的上面分别设有左固定楔块、右固定楔块；上梁的下面设有楔块锁模机构，楔块锁模机构包括左楔块锁模机构、右楔块锁模机构，左楔块锁模机构由左侧小液压缸、左活动楔块组成，左侧小液压缸驱动左活动楔块；右楔块锁模机构由右侧小液压缸、右活动楔块组成，右侧小液压缸驱动右活动楔块；左活动楔块的上端面、右活动楔块的上端面分别与上梁的下端面滑动配合；The upper part of the slider is respectively provided with a left fixed wedge and a right fixed wedge; the lower part of the upper beam is provided with a wedge clamping mechanism, and the wedge clamping mechanism comprises a left wedge clamping mechanism and a right wedge clamping mechanism, left The wedge clamping mechanism consists of a small hydraulic cylinder on the left side and a left movable wedge. The left small hydraulic cylinder drives the left movable wedge. The right wedge clamping mechanism consists of a right small hydraulic cylinder and a right movable wedge. The small hydraulic cylinder drives the right movable wedge; the upper end surface of the left movable wedge and the upper end surface of the right movable wedge respectively slidably cooperate with the lower end surface of the upper beam;
    使用时，滑块下移到位，楔块锁模机构锁紧滑块，克服锻压时产生的张力；左电动螺旋机构、右电动螺旋机构，横向实现快速挤压锻造；When in use, the slider is moved down into position, the wedge clamping mechanism locks the slider to overcome the tension generated during forging; the left electric screw mechanism and the right electric screw mechanism realize rapid extrusion forging in the lateral direction;
    专用锻造模具，包括上模、下模，上模、下模在合模状态下，上模与下模之间设有1-2个横向挤压通道，横向挤压通道中配合设有挤压芯棒；Special forging mold, including upper mold, lower mold, upper mold and lower mold, in the mold clamping state, there are 1-2 transverse extrusion passages between the upper mold and the lower mold, and the transverse extrusion passage is matched with extrusion Mandrel
    实现工艺过程的具体步骤如下：The specific steps to achieve the process are as follows:
    首先，把加热的坯料放入下模中，专用锻造设备滑块在主液压缸垂直向下的动力作用下，带动上模快速移动与下模进行闭合，上、下模具闭合后，由楔块锁模机构形成上、下模具的锁模；Firstly, the heated blank is placed in the lower mold, and the special forging equipment slider drives the upper mold to move quickly and the lower mold to close under the vertical downward force of the main hydraulic cylinder. After the upper and lower molds are closed, the wedge is closed. The clamping mechanism forms a clamping mold of the upper and lower molds;
    锁模后，专用锻造压力机上横向设置的电动螺旋机构快速推动挤压芯棒挤压坯料，使坯料充满模腔，得到无飞边的毛坯；After the clamping, the electric screw mechanism disposed laterally on the special forging press rapidly pushes the extruded mandrel to extrude the blank, so that the blank fills the cavity, and the blank without the flash is obtained;
    然后，电动螺旋机构带动挤压芯棒回位；进而，专用锻造设备的楔块锁模机构回位；最后，滑块回位，通过顶料机构顶出无飞边的毛坯。 Then, the electric screw mechanism drives the pressing mandrel to return to position; further, the wedge clamping mechanism of the special forging device returns to the position; finally, the slider returns to the position, and the blank without the flash is ejected through the topping mechanism.
PCT/CN2016/094328 2015-08-12 2016-08-10 Method of realizing forging of forging blank without trimming WO2017025029A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510488795.XA CN105081163A (en) 2015-08-12 2015-08-12 Method for achieving flash-free forging of forging blank
CN201510488795.X 2015-08-12

Publications (1)

Publication Number Publication Date
WO2017025029A1 true WO2017025029A1 (en) 2017-02-16

Family

ID=54563012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/094328 WO2017025029A1 (en) 2015-08-12 2016-08-10 Method of realizing forging of forging blank without trimming

Country Status (2)

Country Link
CN (1) CN105081163A (en)
WO (1) WO2017025029A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108436011A (en) * 2018-05-28 2018-08-24 温州三连汽车零部件有限公司 Half-closed automobile gearbox gear forging and molding mold
CN108687291A (en) * 2018-07-17 2018-10-23 江苏应流机械制造有限责任公司 A kind of molding die for ball valve forging processing
CN109732026A (en) * 2019-01-22 2019-05-10 武汉重工铸锻有限责任公司 Mold and usage for local die forging both ends abnormity connecting rod
CN112642980A (en) * 2020-12-28 2021-04-13 柳州市荆大汽车制动管制造有限公司 Full-automatic cold heading machine
CN112846673A (en) * 2021-03-18 2021-05-28 林自辉 Metal piece production device and process
CN113000768A (en) * 2021-03-23 2021-06-22 郑州机械研究所有限公司 Cold precision forming device and forming process for linkage shaft of cycloid hydraulic motor
CN113751650A (en) * 2021-09-09 2021-12-07 晋西铁路车辆有限责任公司 Bidirectional heading ball forging device
CN114570868A (en) * 2022-03-03 2022-06-03 佛山市三水凤铝铝业有限公司 Extrusion equipment for sectional material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105081163A (en) * 2015-08-12 2015-11-25 曹立新 Method for achieving flash-free forging of forging blank
CN108672644B (en) * 2018-05-04 2019-11-19 杭州前进锻造有限公司 The high forging ratio piston seat proceeding closed fine forging method of construction machinery gear box

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037377A1 (en) * 2005-02-21 2006-08-31 Bosch Rexroth Aktiengesellschaft Hydraulic forging press has high pressure fluid flow path for connecting pressure chamber to work cylinder chamber formed as channel arrangement integrated in pressing frame
CN2925690Y (en) * 2006-06-29 2007-07-25 上海保捷汽车零部件锻压有限公司 Device for decreasing forging-piece error
JP2009119481A (en) * 2007-11-12 2009-06-04 Toyota Motor Corp Full enclosed forging apparatus and full enclosed forging method
CN102389934A (en) * 2011-10-14 2012-03-28 天津市天锻压力机有限公司 Integrated-framework type hydraulic isothermal forging press
JP2012170987A (en) * 2011-02-22 2012-09-10 Kuribayashi Seisakusho:Kk Bearing inner and outer ring separator and method for manufacturing bearing
CN202861294U (en) * 2012-09-27 2013-04-10 天津市天锻压力机有限公司 Large aluminum alloy wheel hub forging molding hydraulic press
CN103111569A (en) * 2012-12-06 2013-05-22 通裕重工股份有限公司 Full fiber crankshaft four-mold upsetting curve and flexible forming process and equipment for ship
CN103785785A (en) * 2012-10-31 2014-05-14 曹立新 Method for designing closed forging blank of integral automobile steering knuckle
CN105081163A (en) * 2015-08-12 2015-11-25 曹立新 Method for achieving flash-free forging of forging blank

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5514158A (en) * 1978-07-18 1980-01-31 Nissan Motor Co Ltd Closed extrusion molding method of bar material and device thereof
KR20060039819A (en) * 2004-11-03 2006-05-09 윤동진 Division metallic pattern for hot-forging and this use forging process
CN2772679Y (en) * 2005-01-05 2006-04-19 东风锻造有限公司 Closed forging mould of disk piece
CN201244649Y (en) * 2008-09-02 2009-05-27 罗建国 Metal closed forging press using mechanical locking mould
CN201511097U (en) * 2009-09-18 2010-06-23 江苏太平洋精锻科技股份有限公司 Hot forging die upper die automatic demolding device
CN201862725U (en) * 2010-11-30 2011-06-15 重庆理工大学 Multi-die-forging mold for part of 40 Cr steel machine case
CN102990957A (en) * 2011-09-16 2013-03-27 麻城纳福传动机械有限公司 Electric screw press

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037377A1 (en) * 2005-02-21 2006-08-31 Bosch Rexroth Aktiengesellschaft Hydraulic forging press has high pressure fluid flow path for connecting pressure chamber to work cylinder chamber formed as channel arrangement integrated in pressing frame
CN2925690Y (en) * 2006-06-29 2007-07-25 上海保捷汽车零部件锻压有限公司 Device for decreasing forging-piece error
JP2009119481A (en) * 2007-11-12 2009-06-04 Toyota Motor Corp Full enclosed forging apparatus and full enclosed forging method
JP2012170987A (en) * 2011-02-22 2012-09-10 Kuribayashi Seisakusho:Kk Bearing inner and outer ring separator and method for manufacturing bearing
CN102389934A (en) * 2011-10-14 2012-03-28 天津市天锻压力机有限公司 Integrated-framework type hydraulic isothermal forging press
CN202861294U (en) * 2012-09-27 2013-04-10 天津市天锻压力机有限公司 Large aluminum alloy wheel hub forging molding hydraulic press
CN103785785A (en) * 2012-10-31 2014-05-14 曹立新 Method for designing closed forging blank of integral automobile steering knuckle
CN103111569A (en) * 2012-12-06 2013-05-22 通裕重工股份有限公司 Full fiber crankshaft four-mold upsetting curve and flexible forming process and equipment for ship
CN105081163A (en) * 2015-08-12 2015-11-25 曹立新 Method for achieving flash-free forging of forging blank

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108436011A (en) * 2018-05-28 2018-08-24 温州三连汽车零部件有限公司 Half-closed automobile gearbox gear forging and molding mold
CN108687291A (en) * 2018-07-17 2018-10-23 江苏应流机械制造有限责任公司 A kind of molding die for ball valve forging processing
CN108687291B (en) * 2018-07-17 2023-12-19 江苏应流机械制造有限责任公司 Forming die for ball valve forging processing
CN109732026A (en) * 2019-01-22 2019-05-10 武汉重工铸锻有限责任公司 Mold and usage for local die forging both ends abnormity connecting rod
CN109732026B (en) * 2019-01-22 2023-10-20 武汉重工铸锻有限责任公司 Die for partially die forging special-shaped connecting rod with two ends and use method
CN112642980A (en) * 2020-12-28 2021-04-13 柳州市荆大汽车制动管制造有限公司 Full-automatic cold heading machine
CN112642980B (en) * 2020-12-28 2022-07-05 柳州市荆大汽车制动管制造有限公司 Full-automatic cold heading machine
CN112846673A (en) * 2021-03-18 2021-05-28 林自辉 Metal piece production device and process
CN112846673B (en) * 2021-03-18 2023-05-23 江苏郎克斯智能工业科技有限公司 Metal piece production device and process
CN113000768B (en) * 2021-03-23 2023-02-03 郑州机械研究所有限公司 Cold precision forming device and forming process for linkage shaft of cycloid hydraulic motor
CN113000768A (en) * 2021-03-23 2021-06-22 郑州机械研究所有限公司 Cold precision forming device and forming process for linkage shaft of cycloid hydraulic motor
CN113751650A (en) * 2021-09-09 2021-12-07 晋西铁路车辆有限责任公司 Bidirectional heading ball forging device
CN113751650B (en) * 2021-09-09 2023-11-24 晋西铁路车辆有限责任公司 Bidirectional upsetting-ball forging device
CN114570868A (en) * 2022-03-03 2022-06-03 佛山市三水凤铝铝业有限公司 Extrusion equipment for sectional material

Also Published As

Publication number Publication date
CN105081163A (en) 2015-11-25

Similar Documents

Publication Publication Date Title
WO2017025029A1 (en) Method of realizing forging of forging blank without trimming
CN104647038B (en) Compound plasticity shaping equipment and its mould inversion mechanism, the localization method of the mechanism
CN105081191A (en) Non-flange forging method of thrust rod head
CN105081157A (en) Flange-free forging method of heavy-duty car balance shaft
CN102166611B (en) Long bar continuously upsetting device and method for railway wagon brake pull rod
CN103706744A (en) Petroleum drill rod joint horizontal die forging technology and die forging device
CN105377470A (en) Forming press
CN106077213B (en) A kind of multidirectional shaped device of water meter case and moulding process
CN102847935A (en) Magnetic material powder forming method
CN207343592U (en) The two-way binder mould structure of drawing die
CN105081161A (en) Method for achieving flash-free forging of forging blank of steering knuckle
CN209409371U (en) A kind of drum-type brake pad hot press
CN105081164A (en) Method for achieving flash-free forging of blank of automotive front axle I beam
CN105127343A (en) Flash-free forging method of cylinder lug
CN104550609B (en) A kind of closed-die extrusion forging technology mould
CN103302215B (en) Pull-down hydraulic device for blocking die
CN203437507U (en) Die device for producing alternating-current generator claw pole
CN104741607A (en) Titanium electrode extrusion die
CN105081162A (en) Method for achieving non-flash forging of universal joint fork forging blanks
CN103100570A (en) Openable crank extrusion device and forming method of large marine crankshaft crank
CN204603300U (en) A kind of Ti electrode extrusion die
CN209773293U (en) Demoulding sleeve with ejection structure
CN209550395U (en) A kind of reshaping structure of enclosed type metal shell
CN207668416U (en) A kind of external screw thread double bond slot forging piece molding die
CN215279231U (en) High-strength aluminum alloy extrusion die for high-speed rail carriage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16834653

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16834653

Country of ref document: EP

Kind code of ref document: A1