CN111036831B - Automatic forging system and method for ring gear blank - Google Patents
Automatic forging system and method for ring gear blank Download PDFInfo
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- CN111036831B CN111036831B CN201911411374.1A CN201911411374A CN111036831B CN 111036831 B CN111036831 B CN 111036831B CN 201911411374 A CN201911411374 A CN 201911411374A CN 111036831 B CN111036831 B CN 111036831B
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- 238000005242 forging Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000011282 treatment Methods 0.000 claims abstract description 18
- 230000006698 induction Effects 0.000 claims abstract description 17
- 238000004080 punching Methods 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/38—Collecting or arranging articles in groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
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- 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
- B21J5/002—Hybrid process, e.g. forging following casting
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- 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
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- 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
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- 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
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses an automatic forging system and method for ring gear blanks, wherein the system comprises a sawing machine, an intermediate frequency induction heating furnace (2), a robot (3), a ring piece multi-station blank making servo hydraulic press (4), a numerical control ring rolling machine (6) and a screw press (7) which are sequentially connected; the annular piece multi-station blank making servo hydraulic press (4) is provided with a first station, a second station and a third station, wherein the first station is used for upsetting the bar, the second station is used for blind hole extrusion treatment of the upsetted bar, the third station is used for punching a blank subjected to blind hole extrusion treatment, and then the gear blank is formed after ring rolling reaming and die forging. The system of the invention avoids the occurrence of a large quantity of unqualified products, and simultaneously avoids the damage of high temperature to human bodies during the traditional manual detection; realize blanking, heating, multistation blank making, reaming, pre-forging, finish forging, full automatic control of size detection, realize unmanned, intelligent gear forging production.
Description
Technical Field
The invention belongs to the technical field of gear forging, and particularly relates to an automatic forging system and method for a ring gear blank.
Background
Forging is a process of applying pressure to a metal blank by a forging machine to plastically deform the blank to obtain a forging having certain mechanical properties, shape and size. The defects of cast loosening and the like generated in the smelting process of metal can be eliminated through forging, the microstructure is optimized, and meanwhile, the mechanical properties of the forging are generally superior to those of the casting made of the same material due to the fact that a complete metal streamline is preserved. The gear parts always bear a very severe working environment and continuously work in a high-speed rotating working environment, so the performance requirements on the gear parts are always greatly higher than those of common parts. Therefore, the gear parts are processed by forging, and a series of treatments are performed after the processing to optimize the performance of the gear finished product.
At present, along with the improvement of the market on the product requirement and the product quality requirement and the large direction of modern and automatic production, enterprises are urgently required to design the automatic production process of gear products, and cooperate with the construction of the automatic production line of the gear products so as to meet the production requirement. In order to ensure the quality of the products, the method is indispensable for the appearance detection of the forged gear products, and aiming at the detection of the gear products, the existing detection and sorting are mostly judged and carried out through manual sampling inspection, the uncertainty and the error exist, the sorting efficiency is not high, and the achievement of a full-automatic production line is hindered.
The gears in the prior art are widely applied, and the requirements on the structural stability and the dimensional accuracy of the gears are very high due to the wide range of application. The conventional method for forging the gear generally adopts the traditional forging process, and has the defects of complicated process steps from blank to finished product manufacture, low efficiency, large loss, low raw material utilization rate, large equipment tonnage, high input cost, poor dimensional accuracy consistency of the gear manufactured by manual production and incapability of obtaining stable product performance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the automatic forging system and the automatic forging method for the ring gear blank, which can automatically size-sort the forged gear piece, prevent possible errors caused by manual operation, have high sorting accuracy, and save time and labor; the full-automatic control of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection can be realized, and unmanned and intelligent gear forging production can be realized.
In order to achieve the above purpose, the invention provides an automatic forging system for ring gear blanks, which comprises a sawing machine, an intermediate frequency induction heating furnace, a robot, a ring piece multi-station blank making servo hydraulic machine, a numerical control ring rolling machine and a screw press which are sequentially connected; wherein,
The sawing machine is used for sawing materials, and the medium-frequency induction heating furnace is used for heating the materials to form bars;
The annular piece multi-station blank making servo hydraulic press is provided with a first station, a second station and a third station, wherein the first station is used for upsetting the bar stock, the second station is used for blind hole extrusion treatment of the upsetted bar stock, and the third station is used for punching the blank subjected to blind hole extrusion treatment to form the gear forging blank;
The robot comprises a first robot and a second robot, wherein the first robot is used for conveying the material heated by the medium-frequency induction heating furnace into a die, and the second robot is used for conveying the gear blank into a numerical control ring rolling machine;
The numerical control ring rolling machine is used for reaming the gear blank;
The screw press comprises a first screw press and a second screw press, wherein the first screw press is used for pre-forging the gear blank subjected to reaming of the numerical control ring rolling machine, and the second screw press is used for forging the gear blank subjected to pre-forging to form the gear forging.
Further, the device comprises a heating device for heating the die;
And the spraying device is used for spraying a release agent on the die to enable the bar stock to be pulled out of the die.
Further, the device comprises a blue light detection device for detecting the outline dimension of the gear;
And the feed box is used for accommodating the unqualified gears detected by the blue light detection device.
Further, the ring-shaped piece multi-station blank making servo hydraulic machine comprises a mounting support structure, and the mounting support structure comprises a machine body and a platform.
Further, the multi-station blank making servo hydraulic press of the annular piece comprises a hydraulic structure, wherein the hydraulic structure comprises a lower top cylinder arranged on the bottom end surface of the machine body, and a hydraulic rod of the lower top cylinder is matched with the bottom end surface of the forging die;
The main oil cylinder is arranged at the circular through hole of the platform, the bottom of the hydraulic rod of the main oil cylinder is fixedly connected with the bottom of the sliding block, and the bottom of the sliding block is fixedly connected with the forging die.
Further, the hydraulic structure comprises a servo motor, a hydraulic pump, a pump head valve, a main pipe and an integrated block;
The servo motor is connected with the hydraulic pump and used for controlling the flow and the flow speed of the hydraulic pump in real time so as to realize rapid boosting or pressure relief;
the pump head valve is arranged at the outlet of the hydraulic pump and is provided with a pressure threshold value, so that the safety of the hydraulic structure is ensured;
the hydraulic pump is communicated with the integrated block through the main pipe and is used for realizing large-displacement pressing in the tapping process and multistage unloading in the return process.
Further, a through hole is formed in the bottom end face of the forging die, and a hydraulic rod of the lower top cylinder penetrates through the through hole to be in contact with a workpiece.
Further, the multi-station blank making servo hydraulic press for the annular piece comprises a control and safety structure, wherein the control and safety structure comprises a safety cylinder and a master cylinder displacement sensor.
Further, the master cylinder displacement sensor comprises a detection groove fixedly arranged on the machine body and a connecting part for connecting the detection groove and the sliding block.
According to another aspect of the present invention, there is provided an automated ring gear blank forging method comprising the steps of:
step 1: heating raw materials to a process required temperature by an intermediate frequency induction heating furnace, heating a die to the required temperature by a die heating device, putting the heated raw materials into the heated die, and spraying a release agent by a spraying device after molding, wherein the raw materials become bars;
Step 2: the robot places the bar stock on a first station of a multi-station blank making servo hydraulic press of the annular piece for upsetting treatment;
Step 3: the robot moves the blank at the upsetting position to a second station of the annular piece multi-station blank making servo hydraulic press to extrude blind holes;
Step 4: the robot moves the blank on the second station to a third station of the annular piece multi-station blank making servo hydraulic machine for punching, and simultaneously, the robot places the newly heated bar on the first station of the annular piece multi-station blank making servo hydraulic machine, and punching and upsetting work are performed simultaneously;
step 5: the robot places the punched bar stock on a numerical control ring rolling machine for reaming;
step 6: the robot places the reamed blank on a first screw press for pre-forging;
step 7: carrying the blank after the pre-forging is completed from the first screw press to a second screw press by a robot for final forging to obtain a gear piece;
Step 8: the robot conveys the gear piece to a blue light detection device for blue light detection;
step 9: and the robot places the gear parts which are detected to be qualified by the blue light detection device on a conveying chain for wind control cooling, and places the unqualified gear parts into a material box.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1. The automatic forging system can automatically size-sort the forged gear pieces, prevent possible errors caused by manual operation, has high sorting accuracy, and saves time and labor; the full-automatic control of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection can be realized, and unmanned and intelligent gear forging production can be realized.
2. According to the automatic forging system, the plurality of working positions are arranged on the multi-station blank making servo hydraulic press for the annular piece, so that the upsetting, blind hole extruding and punching treatment on the workpiece are realized, and the forging efficiency is greatly improved.
3. The automatic forging system provided by the invention is provided with a plurality of robots, and can carry out workpiece transportation in the processes of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection, so that the forging efficiency is greatly improved. .
4. The automatic forging system realizes full-automatic control of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection, and greatly improves the working efficiency of gear forging.
5. According to the automatic forging method, the intermediate frequency induction heating furnace heats raw materials to the temperature required by the process, the die heating device heats the die to the required temperature, the heated raw materials are placed into the heated die, after the die is formed, the spraying device sprays the release agent, the raw materials are changed into bars, the first station is used for upsetting the bars, the second station is used for blind hole extrusion treatment of the upsetted bars, the third station is used for punching the blanks subjected to blind hole extrusion treatment to form the gear forging blank, the first screw press is used for pre-forging, the second screw press is used for final forging to obtain gear parts, intelligent gear manufacturing is achieved, and the manufacturing precision and efficiency are high.
Drawings
FIG. 1 is a schematic diagram of an automated ring gear blank forging system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a multi-station blank-making servo hydraulic press for annular members in an embodiment of the invention;
FIG. 3 is a schematic flow chart of an automated forging method for ring gear blanks according to an embodiment of the present invention.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-raw materials; 2-an intermediate frequency induction heating furnace; 3-a robot; 4-a multi-station blank making servo hydraulic machine for annular parts; 6-a numerical control ring rolling machine; 7-a screw press; 8-blue light detection device; 9-a conveyor chain; 10-gear transmission chain; 11-an air-cooled gear transmission chain; 12-a material box; 14-a reject chute; 15-disqualified feed box; 401-fuselage, 402-slider, 403-master cylinder, 404-lower top cylinder, 405-safety cylinder, 406-master cylinder displacement sensor, 407-platform, 408-forging die.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The embodiment of the invention provides an automatic ring gear blank forging system which comprises a sawing machine, an intermediate frequency induction heating furnace 2, a robot 3, a ring piece multi-station blank making servo hydraulic press 4, a numerical control ring rolling machine 6, a screw press 7 and a blue light detection device 8 which are connected in sequence. The sawing machine is used for sawing the raw materials 1, and after sawing, the robot 3 conveys the sawed materials to the medium-frequency induction heating furnace 2. The medium-frequency induction heating furnace 2 is used for heating the material according to a set temperature; the robot 3 carries the qualified materials heated by the medium frequency induction heating furnace 2 into a die, if the materials are unqualified, the materials are conveyed into a unqualified feed box 15 through a unqualified material slideway 14, the forging system is further provided with a die heating device for preheating the die, and the robots carry the materials into the die and heat the materials at a set temperature to enable the materials in the die to form bars.
Preferably, the forging system further comprises a spraying device, wherein after the material in the die forms the bar stock, the spraying device is started to spray the release agent so as to enable the bar stock to be ejected from the die.
Further, the annular piece multi-station blank making servo hydraulic machine 4 is used for making blanks of the bars which are taken out of the die, and making the bars into gear blanks. The annular piece multi-station blank making servo hydraulic machine 4 comprises an installation supporting structure, a hydraulic structure and a control and safety structure. The hydraulic structure and the control and safety structure are arranged on the mounting support structure, the mounting support structure provides stable support for the hydraulic structure, the hydraulic structure is used for forging and pressing the gear blank, meanwhile, in the process of forging and pressing the gear blank, the control and safety structure can detect the hydraulic structure and feed back data, and real-time control is conveniently carried out on the annular piece multi-station blank making servo hydraulic press.
Further, as shown in fig. 1, the ring multi-station blank making servo hydraulic machine comprises a mounting support structure, a hydraulic structure and a control and safety structure. The hydraulic structure and the control and safety structure are arranged on the installation supporting structure, the installation supporting structure provides stable support for the hydraulic structure, the hydraulic structure is used for forging and pressing workpieces, meanwhile, in the process of forging and pressing the workpieces, the control and safety structure can detect the hydraulic structure and feed back data, and real-time control is conveniently carried out on the multi-station blank making servo hydraulic press for the annular piece.
As shown in fig. 1, the mounting support structure includes a fuselage 1 and a platform 7. The machine body 1 is a main body supporting structure of the annular piece multi-station blank making servo hydraulic machine, is fixed on embedded bolts of a concrete floor in a bolt connection mode, and is provided with a circular through hole in advance on the bottom end surface of a cuboid frame-shaped structure so as to facilitate the installation and operation of the lower top cylinder 4. The whole platform 7 is a rectangular plate arranged on the top end surface of the machine body 1, and the platform 7 is used for providing direct support for the main oil cylinder 3 and the energy storage driving structure at the top.
As shown in fig. 1, the hydraulic structure includes a slider 2, a master cylinder 3, a lower top cylinder 4, and a die 8. The bottom mechanism of the master cylinder 3 is located below the bottom end surface of the platform 7, and is provided with a hydraulic rod, and the bottom end of the hydraulic rod is fixedly connected with the top end of the sliding block 2, so that driving power of the master cylinder 3 is directly transmitted to the sliding block 2. The whole cuboid structure that is of slider 2 is equipped with the slope joint face on the vertical four sides of this slider 2, cooperatees by the inclined plane on this slope joint face and the fuselage 1, when guaranteeing the stable installation of slider 2, provides reliable direction for this slider 2, ensures going on smoothly of forging and pressing work, and is further, improves the security and the reliability of this multistation annular piece multistation blank making servo hydraulic press. In addition, the forging die 8 is divided into an upper die and a lower die, a through hole is provided at the bottom of the lower die, the top surface of the upper die in the forging die 8 is fixedly connected with the slider 2, and the bottom surface of the lower die is fixedly connected with the top surface of the lower top cylinder 4.
As shown in fig. 1, the control and safety structure includes a safety cylinder 5 and a master cylinder displacement sensor 6. Wherein, one side of fuselage 1 is located to master cylinder displacement sensor 6, this master cylinder displacement sensor 6 includes detection groove and connecting portion, detection groove vertical fixed mounting is on fuselage 1, simultaneously, the slider end of connecting portion is located inside this detection groove, and the other end fixed mounting and the slider 2 fixed connection of this connecting portion, drive connecting portion and carry out synchronous motion in detection inslot portion when slider 2 moves, afterwards with the data transmission to the control end that this master cylinder displacement sensor 6 gathered, accomplish the detection to master cylinder 3 displacement, the control of control system to master cylinder 3 motion of being convenient for improves the controllability of this multistation ring piece multistation blank making servo hydraulic press. The safety cylinder 5 is horizontally arranged on one side of the top of the machine body 1, and the safety cylinder 5 and the main cylinder displacement sensor 6 are arranged on two opposite surfaces.
Further, the annular piece multi-station blank making servo hydraulic press is provided with a first station, a second station and a third station, wherein the first station is used for upsetting bars, the second station is used for blind hole extrusion treatment of the bars after upsetting, and the third station is used for punching the bars after blind hole extrusion treatment to form the gear blank; the robot conveys the gear blank to a numerical control ring rolling machine 6, and the numerical control ring rolling machine 6 performs reaming treatment on the gear blank; after the reaming process, the gear blank is conveyed via a conveyor chain 9 into a screw press 7.
Further, the screw press 7 is divided into a first screw press and a second screw press, wherein the first screw press is used for pre-forging the gear blank after being reamed by the numerical control ring rolling machine 6; and the second screw press is used for forging the gear blank after the pre-forging to form the gear.
Further, blue light detection means 8 for detecting the size of the forged gear according to the set size.
Further, the blue light detection device 8 is followed by a feed box 12, and the feed box 12 is used for accommodating the unqualified gears detected by the blue light detection device, and the unqualified gear pieces are conveyed into the feed box 12 through the gear conveying chain 10 and the air-cooled gear conveying chain 11.
The automatic forging system for the ring gear blank provided by the embodiment of the invention can automatically size-sort the forged gear piece, prevent possible errors caused by manual operation, has high sorting accuracy, and saves time and labor; the full-automatic control of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection can be realized, and unmanned and intelligent gear forging production can be realized.
According to the ring gear blank automatic forging system, a plurality of working positions are arranged on the ring piece multi-station blank making servo hydraulic press, so that upsetting, blind hole extrusion and punching of workpieces are realized, and forging efficiency is greatly improved.
According to the ring gear blank automatic forging system provided by the embodiment of the invention, the plurality of robots are arranged, so that workpieces can be conveyed in the processes of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection, and the forging efficiency is greatly improved.
As shown in fig. 3, an embodiment of the present invention provides an automated forging method for a ring gear blank, including the steps of:
step 1: heating raw materials to a process required temperature by an intermediate frequency induction heating furnace, heating a die to the required temperature by a die heating device, putting the heated raw materials into the heated die, and spraying a release agent by a spraying device after molding, wherein the raw materials become bars;
Step 2: the robot places the bar stock on a first station of a multi-station blank making servo hydraulic press of the annular piece for upsetting treatment;
Step 3: the robot moves the blank at the upsetting position to a second station of the annular piece multi-station blank making servo hydraulic press to extrude blind holes;
Step 4: the robot moves the blank on the second station to a third station of the annular piece multi-station blank making servo hydraulic machine for punching, and simultaneously, the robot places the newly heated bar on the first station of the annular piece multi-station blank making servo hydraulic machine, and punching and upsetting work are performed simultaneously;
step 5: the robot places the punched bar stock on a numerical control ring rolling machine for reaming;
step 6: the robot places the reamed blank on a first screw press for pre-forging;
Step 7: carrying the blank after the pre-forging is completed from the first screw press to a second screw press by a robot to perform final forging, so as to obtain a gear piece;
Step 8: the robot conveys the gear piece to a blue light detection device for blue light detection;
Step 9: and the robot places the gear parts which are detected to be qualified by the blue light detection device on a conveying chain for wind control cooling, and places the unqualified gear parts into an unqualified material box.
The gear forging method provided by the embodiment of the invention realizes full-automatic control of blanking, heating, multi-station blank making, reaming, pre-forging, final forging and size detection, and greatly improves the working efficiency of gear forging.
According to the automatic forging method, the intermediate frequency induction heating furnace heats raw materials to the temperature required by the process, the die heating device heats the die to the required temperature, the heated raw materials are placed into the heated die, after the die is formed, the spraying device sprays the release agent, the raw materials are changed into bars, the first station is used for upsetting the bars, the second station is used for blind hole extrusion treatment of the upsetted bars, the third station is used for punching the blanks subjected to blind hole extrusion treatment to form the gear forging blank, the first screw press is used for pre-forging, the second screw press is used for final forging to obtain gear parts, intelligent gear manufacturing is achieved, and the manufacturing precision and efficiency are high.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. An automatic ring gear blank forging system is characterized by comprising a sawing machine, an intermediate frequency induction heating furnace (2), a robot (3), a ring piece multi-station blank making servo hydraulic machine (4), a numerical control ring rolling machine (6) and a screw press (7) which are sequentially connected; wherein,
The sawing machine is used for sawing materials, and the medium-frequency induction heating furnace (2) is used for heating the materials to form bars;
The annular piece multi-station blank making servo hydraulic press (4) is provided with a first station, a second station and a third station, wherein the first station is used for upsetting the bar, the second station is used for blind hole extrusion treatment of the upsetted bar, and the third station is used for punching the blank subjected to blind hole extrusion treatment to form the gear blank;
The robot (3) comprises a first robot and a second robot, wherein the first robot is used for conveying the material heated by the medium-frequency induction heating furnace into a die, and the second robot is used for conveying the gear blank into a numerical control ring rolling machine (6);
The numerical control ring rolling machine (6) is used for reaming the gear blank;
The screw press (7) comprises a first screw press, a second screw press and a first screw press, wherein the first screw press is used for pre-forging the gear blank subjected to reaming of the numerical control ring rolling machine (6), and the second screw press is used for forging the gear blank subjected to pre-forging to form a gear forging; comprises a heating device for heating the mould;
The spraying device is used for spraying a release agent on the die to enable the bar stock to be pulled out of the die;
the blue light detection device is used for detecting the outline dimension of the gear;
The bin is used for accommodating the unqualified gears detected by the blue light detection device; the multi-station blank-making servo hydraulic machine (4) for the annular piece comprises a mounting support structure, wherein the mounting support structure comprises a machine body (401) and a platform (407); the multi-station blank making servo hydraulic press (4) for the annular piece comprises a hydraulic structure, wherein the hydraulic structure comprises a lower top cylinder (404) arranged on the bottom end surface of the machine body (401), and a hydraulic rod of the lower top cylinder (404) is matched with the bottom end surface of a forging die (408);
the main oil cylinder (403) is arranged at the circular through hole of the platform (407), the bottom of the hydraulic rod of the main oil cylinder (403) is fixedly connected with the bottom of the sliding block (402), and the bottom of the sliding block (402) is fixedly connected with the forging die (408); the hydraulic structure comprises a servo motor, a hydraulic pump, a pump head valve, a main pipe and an integrated block;
The servo motor is connected with the hydraulic pump and used for controlling the flow and the flow speed of the hydraulic pump in real time so as to realize rapid boosting or pressure relief;
the pump head valve is arranged at the outlet of the hydraulic pump and is provided with a pressure threshold value, so that the safety of the hydraulic structure is ensured;
the hydraulic pump is communicated with the integrated block through the main pipe and is used for realizing large-displacement pressing in the tapping process and multistage unloading in the return process.
2. The automated ring gear blank forging system as recited in claim 1, wherein a bottom end surface of said forging die (408) is provided with a through hole through which a hydraulic rod of said lower top cylinder (404) passes to contact a workpiece.
3. An automated ring gear blank forging system according to claim 1 or 2, wherein said ring member multi-station blank-making servo hydraulic machine (4) comprises control and safety structures including a safety cylinder (405) and a master cylinder displacement sensor (406).
4. An automated ring gear blank forging system according to claim 3, wherein said master cylinder displacement sensor (406) comprises a detection groove fixedly provided to said body (401) and a connecting portion connecting said detection groove and said slider (402).
5. An automated ring gear blank forging method implemented using an automated ring gear blank forging system according to any one of claims 1-4, comprising the steps of:
step 1: heating the raw material (1) to a process required temperature by an intermediate frequency induction heating furnace (2), heating a die to the required temperature by a die heating device, putting the heated raw material (1) into the heated die, and spraying a release agent by a spraying device after molding, wherein the raw material (1) is changed into a bar stock;
step 2: the robot (3) places the bar stock on a first station of a multi-station blank making servo hydraulic press (4) of the annular piece for upsetting treatment;
Step 3: the robot (3) moves the blank at the upsetting position to a second station of the annular piece multi-station blank making servo hydraulic press (4) to extrude blind holes;
Step 4: the robot moves the blank on the second station to a third station of the annular piece multi-station blank making servo hydraulic machine (4) for punching, and simultaneously, the robot places the newly heated bar on the first station of the annular piece multi-station blank making servo hydraulic machine (4), and punching and upsetting work are performed simultaneously;
step 5: the robot (3) places the bar stock after punching on a numerical control ring rolling machine (6) for reaming;
Step 6: the robot (3) places the reamed blank on a first screw press for pre-forging;
step 7: carrying the blank after the pre-forging is completed from the first screw press to a second screw press by a robot (3) for final forging to obtain a gear piece;
Step 8: the robot (3) conveys the gear piece to a blue light detection device (8) for blue light detection;
Step 9: the robot (3) places the qualified gear parts detected by the blue light detection device (8) on the conveying chain (9) for wind control cooling, and places the unqualified gear parts into the feed box (12).
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