阅读说明：本技术 一种行星架自动化锻造生产系统及工艺 (Automatic forging production system and process for planet carrier ) 是由 刘光辉 刘华 刘百宣 刘丹 张超 王涛 张义帅 孙红星 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种行星架自动化锻造生产系统及工艺,包括顺序设置的用于对棒料自动下料及在线称重的等重下料系统,对经在线称重合格的棒料进行自动加热的自动加热系统,对经自动加热后的棒料进行锻造的自动锻造系统,对经锻造后的成品锻件进行等温正火处理的自动等温正火系统和对经自动等温正火处理后的成品锻件进行自动抛丸处理的自动抛丸清理系统。(The invention discloses an automatic forging production system and process for a planet carrier, which comprise an equal-weight blanking system, an automatic heating system, an automatic forging system, an automatic isothermal normalizing system and an automatic shot blasting cleaning system, wherein the equal-weight blanking system is sequentially arranged and used for automatically blanking and weighing bars, the automatic heating system is used for automatically heating the bars qualified by online weighing, the automatic forging system is used for forging the bars after automatic heating, the automatic isothermal normalizing system is used for carrying out isothermal normalizing treatment on a forged finished product forge piece, and the automatic shot blasting cleaning system is used for carrying out automatic shot blasting treatment on the finished product forge piece after the isothermal normalizing treatment.)

1. The utility model provides an automatic production system that forges of planet carrier which characterized in that: the automatic isothermal normalizing system comprises an equal-weight blanking system, an automatic heating system, an automatic forging system, an automatic isothermal normalizing system and an automatic shot blasting system, wherein the equal-weight blanking system is sequentially arranged and used for automatically blanking and weighing bars, the automatic heating system is used for automatically heating the bars qualified by online weighing, the automatic forging system is used for forging the bars after automatic heating, the automatic isothermal normalizing system is used for carrying out isothermal normalizing on a forged finished product forged piece, and the automatic shot blasting system is used for carrying out automatic shot blasting on the finished product forged piece after the automatic isothermal normalizing.

2. The automatic forging production system for the planet carrier according to claim 1, wherein: the equal-weight blanking system comprises an automatic feeding machine, wherein the left end of the automatic feeding machine is connected with a high-speed numerical control circular saw, and the left end of the high-speed numerical control circular saw is connected with an online weighing machine; the on-line weighing machine is connected with an automatic heating system positioned at the left end of the on-line weighing machine through a transmission device.

3. The automatic forging production system for the planet carrier according to claim 1, wherein: the automatic heating system comprises a step feeding machine, wherein intermediate frequency heating furnaces are connected to the front side and the rear side of the step feeding machine, and infrared thermometers are arranged at outlets of the intermediate frequency heating furnaces on the front side and the rear side; the outlet of each side intermediate frequency heating furnace is provided with a slide way, and the left end of each slide way is provided with a grabbing position which is positioned at the automatic forging system.

4. The automatic forging production system for the planet carrier according to claim 1, wherein: the automatic forging system comprises two robot guide rails arranged in front and at the back, wherein a robot is arranged on each robot guide rail, and a single-station multidirectional forging press is arranged on the outer side of each robot guide rail; an isothermal normalizing line material frame is arranged between the front and the rear robot guide rails, and the automatic forging system is connected with the automatic isothermal normalizing system at the left end through the isothermal normalizing line material frame.

5. The automatic forging production system for the planet carrier according to claim 1, wherein: the automatic isothermal normalizing system comprises a temperature equalizing furnace, heating furnaces are connected to the front side and the rear side of the temperature equalizing furnace, the heating furnaces on each side are connected with the isothermal furnace located at the left end of the temperature equalizing furnace, an air cooling chamber is connected to the left end of the isothermal furnace on each side, the air cooling chambers on the front side and the rear side are connected with a water cooling tank arranged between the front side and the rear side, and the water cooling tank is connected with the automatic shot blasting system through a turnover mechanism arranged behind the water cooling tank.

6. The automatic forging production system for the planet carrier according to claim 1, wherein: the automatic shot blasting system comprises a crawler conveyor and a shot blasting machine arranged at the left end.

7. The process of the automatic forging production system for the planet carrier is characterized in that: the process comprises the following steps: equal-weight blanking, automatic heating, automatic forging, automatic isothermal normalizing and automatic shot blasting;

blanking with equal weight: the method comprises the steps that a bar to be forged is placed on an automatic feeding machine, relevant parameters of the bar to be forged are set on a high-speed numerical control circular saw, automatic blanking is conducted, weighing is conducted on an online weighing machine after blanking is completed, unqualified bars can be automatically removed, data are fed back to the high-speed numerical control circular saw, and the blanking length of the high-speed numerical control circular saw is adjusted in real time according to the received data; conveying the qualified bar stock to a step feeder;

automatic heating: the bars qualified by on-line weighing are conveyed into a step feeding machine, the bars in the step feeding machine are respectively conveyed into intermediate frequency heating furnaces on the front side and the rear side of the step feeding machine for heating treatment, after heating is completed, unqualified bars are automatically removed through measurement of an infrared thermometer, and meanwhile, data are fed back to programmable logic controllers of the intermediate frequency heating furnaces on the front side and the rear side to automatically adjust parameters; qualified bar stock is conveyed to a grabbing position in the automatic forging system through the outlets of the intermediate frequency heating furnaces on the front side and the rear side through a slide way;

automatic forging: the robots on the front side and the rear side respectively place the bar materials on the near side grabbing positions in dies of the single-station multidirectional forging press on the front side and the rear side, after the robots on the front side and the rear side leave the dies, the single-station multidirectional forging press receives a relevant starting signal and then starts to automatically perform forging and spraying operation, and after the forging and spraying operation is completed, the robots on the two sides take out the forged finished product forged piece and place the forged finished product in an isothermal normalizing line material frame to perform circulating operation; at the moment, the finished product forged piece enters a temperature equalizing furnace in an automatic isothermal normalizing system after being naturally cooled;

automatic isothermal normalizing: after temperature equalization treatment, finished product forgings entering the temperature equalization furnace respectively enter heating furnaces on the front side and the rear side for heating treatment, after heating is finished, the finished product forgings correspondingly enter the isothermal furnaces on each side for treatment, then respectively enter an air cooling chamber for treatment, finally enter a water cooling tank for cooling treatment, and the finished product forgings cooled by the water cooling tank enter a crawler conveyor of an automatic shot blasting cleaning system through a turnover mechanism;

automatic shot blasting: and the finished product forge piece on the crawler conveyor enters the shot blasting machine through the crawler conveyor for shot blasting, and the finished product is conveyed to a finished product frame after the shot blasting is finished.

Technical Field

The invention relates to the technical field of metal pressure machining, in particular to an automatic forging production system and process for a planet carrier.

Background

The planet carrier is a key part in an automatic transmission of an automobile, and the current methods mainly comprise the following processing methods: firstly, bars are directly processed, the operation has low utilization rate of the bars, low processing efficiency and high cost, and a metal streamline is cut off during processing, so that the service life of parts is short; secondly, the common forging is carried out with machining, the subsequent machining allowance is large by using the method, the efficiency is low, and the operation of the whole process can be completed by at least six workers; thirdly, the split welding mode is that the end part and the lower part are respectively subjected to rough machining, then electron beam welding and final finish machining, and the operation method has high working strength and low production efficiency; at present, the processing methods are finished by manual operation, so that the labor intensity is high, the labor cost is high, the production efficiency is low, and the product quality problem caused by human factors can be caused; in addition, workers are also exposed to the hazards of factors such as high temperature, noise, dust and the like in the working process, and potential safety hazards are generated to the physical health of the workers.

Disclosure of Invention

The invention aims to provide an automatic forging production system and process for a planet carrier, which can realize automatic operation, reduce the use of workers, improve the production efficiency and ensure the product quality.

The invention adopts the following technical scheme:

the automatic forging production system for the planet carrier comprises an equal-weight blanking system, an automatic heating system, an automatic forging system, an automatic isothermal normalizing system and an automatic shot blasting system, wherein the equal-weight blanking system is used for automatically blanking and weighing bars on line, the automatic heating system is used for automatically heating the bars qualified by weighing on line, the automatic forging system is used for forging the bars after automatic heating, the automatic isothermal normalizing system is used for carrying out isothermal normalizing on a forged finished product forge piece, and the automatic shot blasting system is used for automatically carrying out shot blasting on the finished product forge piece after being subjected to isothermal normalizing.

The equal-weight blanking system comprises an automatic feeding machine, wherein the left end of the automatic feeding machine is connected with a high-speed numerical control circular saw, and the left end of the high-speed numerical control circular saw is connected with an online weighing machine; the on-line weighing machine is connected with an automatic heating system positioned at the left end of the on-line weighing machine through a transmission device.

The automatic heating system comprises a step feeding machine, wherein intermediate frequency heating furnaces are connected to the front side and the rear side of the step feeding machine, and infrared thermometers are arranged at outlets of the intermediate frequency heating furnaces on the front side and the rear side; the outlet of each side intermediate frequency heating furnace is provided with a slide way, and the left end of each slide way is provided with a grabbing position which is positioned at the automatic forging system.

The automatic forging system comprises two robot guide rails arranged in front and at the back, wherein a robot is arranged on each robot guide rail, and a single-station multidirectional forging press is arranged on the outer side of each robot guide rail; an isothermal normalizing line material frame is arranged between the front and the rear robot guide rails, and the automatic forging system is connected with the automatic isothermal normalizing system at the left end through the isothermal normalizing line material frame.

The automatic isothermal normalizing system comprises a temperature equalizing furnace, heating furnaces are connected to the front side and the rear side of the temperature equalizing furnace, the heating furnaces on each side are connected with the isothermal furnace located at the left end of the temperature equalizing furnace, an air cooling chamber is connected to the left end of the isothermal furnace on each side, the air cooling chambers on the front side and the rear side are connected with a water cooling tank arranged between the front side and the rear side, and the water cooling tank is connected with the automatic shot blasting system through a turnover mechanism arranged behind the water cooling tank.

The automatic shot blasting system comprises a crawler conveyor and a shot blasting machine arranged at the left end.

A process of an automatic forging production system of a planet carrier comprises the following steps: equal-weight blanking, automatic heating, automatic forging, automatic isothermal normalizing and automatic shot blasting;

blanking with equal weight: the method comprises the steps that a bar to be forged is placed on an automatic feeding machine, relevant parameters of the bar to be forged are set on a high-speed numerical control circular saw, automatic blanking is conducted, weighing is conducted on an online weighing machine after blanking is completed, unqualified bars can be automatically removed, data are fed back to the high-speed numerical control circular saw, and the blanking length of the high-speed numerical control circular saw is adjusted in real time according to the received data; conveying the qualified bar stock to a step feeder;

automatic heating: the bars qualified by on-line weighing are conveyed into a step feeding machine, the bars in the step feeding machine are respectively conveyed into intermediate frequency heating furnaces on the front side and the rear side of the step feeding machine for heating treatment, after heating is completed, unqualified bars are automatically removed through measurement of an infrared thermometer, and meanwhile, data are fed back to programmable logic controllers of the intermediate frequency heating furnaces on the front side and the rear side to automatically adjust parameters; qualified bar stock is conveyed to a grabbing position in the automatic forging system through the outlets of the intermediate frequency heating furnaces on the front side and the rear side through a slide way;

automatic forging: the robots on the front side and the rear side respectively place the bar materials on the near side grabbing positions in dies of the single-station multidirectional forging press on the front side and the rear side, after the robots on the front side and the rear side leave the dies, the single-station multidirectional forging press receives a relevant starting signal and then starts to automatically perform forging and spraying operation, and after the forging and spraying operation is completed, the robots on the two sides take out the forged finished product forged piece and place the forged finished product in an isothermal normalizing line material frame to perform circulating operation; at the moment, the finished product forged piece enters a temperature equalizing furnace in an automatic isothermal normalizing system after being naturally cooled;

automatic isothermal normalizing: after temperature equalization treatment, finished product forgings entering the temperature equalization furnace respectively enter heating furnaces on the front side and the rear side for heating treatment, after heating is finished, the finished product forgings correspondingly enter the isothermal furnaces on each side for treatment, then respectively enter an air cooling chamber for treatment, finally enter a water cooling tank for cooling treatment, and the finished product forgings cooled by the water cooling tank enter a crawler conveyor of an automatic shot blasting cleaning system through a turnover mechanism;

automatic shot blasting: and the finished product forge piece on the crawler conveyor enters the shot blasting machine through the crawler conveyor for shot blasting, and the finished product is conveyed to a finished product frame after the shot blasting is finished.

Compared with the prior art, the invention has the beneficial effects that: through the arrangement of the equal-weight blanking system, the automatic heating system, the automatic forging system, the automatic isothermal normalizing system and the automatic shot blasting system, full-process automatic production can be realized, the use of operators is reduced, meanwhile, the production efficiency can be improved, the production cost is reduced, the overall quality of products is unified, and the uniformity of products in batches is ensured.

Furthermore, the constant-weight blanking system, the automatic heating system, the automatic forging system, the automatic isothermal normalizing system and the automatic shot blasting cleaning system are further optimized, so that the precision and the full automation degree of the production process are improved, and the product quality is ensured.

Furthermore, the automatic forging production system can adapt to the automatic forging production of other more complex forgings by changing the specification parameters of the bar stock, the size of the hearth of the intermediate-frequency heating furnace, the structure of the die of the single-station multidirectional forging press and the like, and has wide application range and strong practicability.

Drawings

FIG. 1 is an overall plan layout view of the present invention;

FIG. 2 is a schematic structural diagram of an equal-weight blanking system of the present invention;

FIG. 3 is a schematic diagram of the automatic heating system of the present invention;

FIG. 4 is a schematic diagram of the automatic forging system of the present invention;

FIG. 5 is a schematic structural view of an automatic isothermal normalizing system of the present invention;

fig. 6 is a schematic structural diagram of the automatic shot blasting system of the invention.

Detailed Description

The invention is described in detail below with reference to the following figures and examples:

as shown in fig. 1 to 6, an automatic forging production system for a planet carrier comprises an equal-weight blanking system 1 for automatically blanking and online weighing bars, an automatic heating system 2 for automatically heating the bars qualified by online weighing, an automatic forging system 3 for forging the bars after automatic heating, an automatic isothermal normalizing system 4 for isothermally normalizing finished forged forgings, and an automatic shot blasting system 5 for automatically shot blasting finished forgings after isothermal normalizing, which are sequentially arranged, wherein the systems are connected with a bus control system after being sequentially connected; all the subsystems are tightly connected through the bus control system, so that full-process automation and unmanned production are realized, an operator only needs to monitor the production process in a master control room in real time, the use of labor force can be reduced, the production cost is reduced, and the production efficiency and the production quality can be improved; in addition, the worker can timely acquire the running information of each system through real-time monitoring in the master control room, so that corresponding adjustment can be conveniently made at any time, and when a fault occurs, the worker can timely find the fault according to corresponding fault information displayed on the monitoring system of the master control room, so that the problem solving efficiency is improved.

The equal-weight blanking system 1 comprises an automatic feeding machine 1-1, wherein the left end of the automatic feeding machine 1-1 is connected with a high-speed numerical control circular saw machine 1-2, and the left end of the high-speed numerical control circular saw machine 1-2 is connected with an online weighing machine 1-3; the online weighing machine 1-3 is connected with an automatic heating system 2 at the left end thereof through a transmission device; when the automatic feeding device works, bars needing to be forged are placed on an automatic feeding frame of an automatic feeding machine 1-1 to be fed, specific blanking length, speed and other related parameters are set on a high-speed numerical control circular saw 1-2, automatic blanking is achieved when the automatic feeding device is started, the bars enter an online weighing machine 1-3 after blanking is completed, online weighing is conducted, bars of specified specifications are sorted in real time, the bars with unqualified weight are automatically removed, weight information is fed back to the high-speed numerical control circular saw 1-2, and the blanking length can be automatically adjusted after the high-speed numerical control circular saw 1-2 receives signals, so that the rejection rate is greatly reduced, and the product consistency is guaranteed; and (3) weighing the qualified bar on line, and conveying the bar to a step feeder 2-1 positioned at the left end of an on-line weighing machine 1-3 through a conveying device, wherein the conveying device can adopt a conveying belt for conveying.

The automatic heating system 2 comprises a step feeding machine 2-1, the front side and the rear side of the step feeding machine 2-1 are both connected with intermediate frequency heating furnaces 2-2, and the outlets of the intermediate frequency heating furnaces 2-2 at the front side and the rear side are both provided with infrared thermometers; a slide way 6 is arranged at the outlet of the intermediate frequency heating furnace 2-2 at each side, a grabbing position 7 is arranged at the left end of each slide way 6, and the grabbing position 7 is positioned at the automatic forging system 3; when the automatic bar feeding device works, qualified bars are weighed on line and are transmitted to a hopper of a ladder feeding machine 2-1 through a transmission belt, ladder feeding of the bars is achieved through an air cylinder and a hydraulic cylinder, the bars are respectively pushed to material storage devices arranged on intermediate frequency heating furnaces 2-2 on the front side and the rear side after the ladder feeding is completed, then heating time is set through a time relay, the upper limit and the lower limit of the heating temperature of the bars in the intermediate frequency heating furnaces 2-2 are set, so that continuous automatic heating is convenient to conduct, when the bars are operated to the outlet of the intermediate frequency heating furnace 2-2 on each side after the heating is completed, temperature identification is conducted through an infrared thermometer, the bars with unqualified temperature are automatically removed, meanwhile, heating parameters are fed back to a programmable logic controller of the intermediate frequency heating furnace 2-2 on each side, the intermediate frequency heating furnaces 2-2 on the front side and the rear side automatically adjust, the rejection rate is effectively reduced; the qualified bar stock detected by the infrared thermometer is conveyed to a grabbing position 7 on the right side of the automatic forging system 3 through a slideway 6.

The automatic forging system 3 comprises two robot guide rails 3-1 which are arranged in the front and at the back, and the arrangement of the robot guide rails 3-1 is convenient for the robot 3-2 to take and place the bar material along the robot guide rails 3-1, so that the working efficiency is improved; each robot guide rail 3-1 is provided with a robot 3-2, and the outer side of each robot guide rail 3-1 is provided with a single-station multidirectional forging press 3-3; an isothermal normalizing line material frame 3-4 is arranged between the front and the rear robot guide rails 3-1, and the automatic forging system 3 is connected with an automatic isothermal normalizing system 4 at the left end through the isothermal normalizing line material frame 3-4; when the automatic forging and pressing machine works, the robots 3-2 on the front side and the rear side respectively move to the grabbing positions 7 along the robot guide rails 3-1 on the front side and the rear side, grab the bar materials conveyed to the grabbing positions 7, place the bar materials in the dies of the single-station multi-directional forging press 3-3 on the front side and the rear side respectively, after the robots 3-2 on the front side and the rear side come out of the dies of the single-station multi-directional forging press 3-3, the single-station multi-directional forging press 3-3 receives relevant signals and automatically performs forging forming operation and automatic spraying operation, after the forging is completed, the robots 3-2 on the front side and the rear side take out the forged finished product forgings and orderly arrange the forged product forgings in the isothermal normalizing line frame 3-4, and after natural cooling, convey the finished product forgings to the isothermal furnace 4-1 through the conveying belt to circulate, and automatic forging is realized.

The automatic isothermal normalizing system 4 comprises a temperature equalizing furnace 4-1, the temperature equalizing furnace 4-1 is arranged to ensure that the temperature of a finished product forge piece is uniform before the finished product forge piece enters a heating furnace 4-2, the front side and the rear side of the temperature equalizing furnace 4-1 are both connected with the heating furnace 4-2, the heating furnace 4-2 at the front side and the rear side are respectively connected with the isothermal furnace 4-3 at the left end, the left ends of the isothermal furnaces 4-3 at the front side and the rear side are respectively connected with an air cooling chamber 4-4, the air cooling chambers 4-4 at the front side and the rear side are both connected with a water cooling tank 4-5 arranged between the two, and the water cooling tank 4-5 is connected with an automatic shot blasting cleaning system 5 through a turnover; when the isothermal normalizing device works, finished forgings are naturally cooled and then conveyed into the temperature equalizing furnace 4-1 through the conveying belt, the finished forgings are output from the temperature equalizing furnace 4-1 and then sequentially enter the heating furnaces 4-2 at the front side and the rear side respectively for heating treatment, the finished forgings in the heating furnaces 4-2 at the front side and the rear side respectively flow into the isothermal furnaces 4-3 at the corresponding sides respectively for isothermal treatment after being heated, and after the isothermal treatment is finished, the finished forgings respectively flow into the isothermal furnaces 4-3 at the front side and the rear side and sequentially enter the air cooling chamber 4-4 at the left end of the isothermal furnace 4-3 at each side for cooling treatment, and finally flow into the water cooling tank 4-5, so that the whole isothermal normalizing process is finished; the isothermal normalizing process can be realized only by setting heating power and rhythm, and the normalizing is carried out by utilizing forging waste heat, so that about 20 percent of electricity can be saved; and the finished product forged piece which is water-cooled by the water cooling tank 4-5 enters a crawler conveyor 5-1 of the automatic shot blasting cleaning system 5 through the turnover mechanism.

The automatic shot blasting system 5 comprises a crawler conveyor 5-1 and a shot blasting machine 5-2 arranged at the left end; conveying the finished forged piece on the crawler conveyor 5-1 into a hopper of the shot blasting machine 5-2, automatically starting the shot blasting machine 5-2 to finish the whole shot blasting process when the forged piece entering the hopper of the shot blasting machine reaches a set value according to the beat set by the isothermal normalizing system, and finally conveying the cleaned forged piece to a finished frame; the whole shot blasting process can be completed only by setting the cleaning time, and the shot blasting machine is simple and convenient to operate and high in efficiency.

The process steps adopted in the working process of the invention are as follows:

equal-weight blanking, automatic heating, automatic forging, automatic isothermal normalizing and automatic shot blasting;

blanking with equal weight: the method comprises the steps that a bar to be forged is placed on an automatic feeding machine 1-1, relevant parameters of the bar to be forged are set on a high-speed numerical control circular saw 1-2, automatic blanking is conducted, weighing is conducted on an online weighing machine 1-3 after blanking is completed, unqualified bar is automatically removed, data are fed back to the high-speed numerical control circular saw 1-2, and the blanking length is adjusted by the high-speed numerical control circular saw 1-2 in real time according to received data information; conveying the qualified bar stock to a step feeder 2-1;

automatic heating: the qualified bars after on-line weighing are conveyed to a step feeding machine 2-1, the bars in the step feeding machine 2-1 are respectively conveyed to intermediate frequency heating furnaces 2-2 positioned at the front side and the rear side of the step feeding machine 2-1 for heating treatment, after heating is completed, the unqualified bars after being measured by an infrared thermometer are automatically removed, data are fed back to programmable logic controllers of the intermediate frequency heating furnaces 2-2 at the front side and the rear side, parameters are automatically adjusted, and the qualified bars are conveyed to a grabbing position 7 in an automatic forging system 3 through a slide way 6 through outlets of the intermediate frequency heating furnaces 2-2 at the front side and the rear side;

automatic forging: the robots 3-2 on the front side and the rear side respectively place the bar materials on the near side grabbing positions 7 in the dies of the single-station multidirectional forging press 3-3 on the front side and the rear side, after the robots 3-2 on the front side and the rear side are separated from the dies, the single-station multidirectional forging press 3-3 receives related starting signals and then starts to automatically perform forging and spraying operations, and after the forging and spraying operations are completed, the robots 3-2 on the front side and the rear side take out finished forged pieces and place the forged pieces in the isothermal normalizing line material frames 3-4 in a stacking mode so as to perform circulation operation; at the moment, the finished product forged piece enters a temperature equalizing furnace in the automatic isothermal normalizing system 4 after being naturally cooled;

automatic isothermal normalizing: after temperature equalization treatment, the bars entering the temperature equalizing furnace 4-1 enter heating furnaces 4-2 at the front side and the rear side respectively for heating treatment, after heating is finished, the bars correspondingly enter isothermal furnaces 4-3 at each side respectively for treatment, then enter an air cooling chamber 4-4 respectively for treatment, finally enter a water cooling tank 4-5 for cooling treatment, and the finished product forged piece cooled by the water cooling tank 4-5 enters a crawler conveyor of an automatic shot blasting cleaning system through a turnover mechanism;

automatic shot blasting: and the finished product forge piece on the crawler conveyor 5-1 enters the shot blasting machine 5-2 through the crawler conveyor 5-1 for shot blasting, and the finished product is conveyed to a finished product frame after the shot blasting is finished.