CN115608910A - Automatic forging production system for connecting rod and control method - Google Patents
Automatic forging production system for connecting rod and control method Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21K1/766—Connecting rods
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Abstract
The invention discloses an automatic forging production system and a control method for a connecting rod, and relates to the technical field of metal forging. The processing unit comprises a blanking unit, a feeding unit and a control unit, wherein the blanking unit is used for cutting raw materials into material knots with top-set sizes; the heating unit is used for heating the material knot to a set temperature; the roll forging unit is used for automatically roll forging the material knots to obtain a flat and non-folding roll blank; the forging unit is used for flattening the roller blank, then performing pre-forging to obtain a connecting rod piece, and performing finish forging on the connecting rod piece; the shaping unit is used for trimming and thermally correcting the connecting rod piece; the post-processing unit is used for performing post-processing steps on the connecting rod piece, and the post-processing steps comprise forging residual heat control cooling, metal flaw detection and shot blasting; and the operation control unit is used for optimizing after acquiring the time spent in the processing steps in the processing unit, so that the overall processing time of the system is shortened. The invention avoids the quality problem caused by the over-low temperature of the connecting rod due to long-time processing.
Description
Technical Field
The invention belongs to the technical field of metal forging, and particularly relates to an automatic forging production system of a connecting rod and a control method.
Background
The engine connecting rod is used as a non-quenched and tempered steel forging, and the hardness, the metallographic structure and the mechanical strength of the connecting rod are directly influenced by the temperature control in the whole production process. In the traditional connecting rod forging process, the forging production time is too long due to the fact that the process time is not strictly controlled, and the temperature of the connecting rod in the forging process is lower than a set threshold value.
In the patent publication No. CN106994496A, a forging method of a steel bimetal cracking connecting rod is disclosed, which comprises the following steps: s1: preparing a casting blank of the steel bimetal cracking connecting rod through a casting process, wherein the casting blank consists of a connecting rod body, a cracking area and a connecting rod cover; s2: normalizing the casting blank to eliminate cracking material and network cementite in the interface area and promote the formation of continuous diffusion layer on the bimetal interface; s3: forging a casting blank, and controlling the flow direction of a cracking material through a forging die; s4: cleaning burrs on the surface of the forge piece, and performing shot blasting treatment; s5: quenching and tempering the forged piece, so that the mechanical property of the connecting rod can meet the requirement, and the cracking brittleness of a cracking material is ensured; s6: and (4) opening a cracking groove, cracking and reloading to finally obtain a finished product of the steel bimetal cracking connecting rod. According to the scheme, the flow direction of the cracking material is controlled through the forging die, but the time of forging processing is not optimally controlled, so that the temperature of the connecting rod is easily too low in the forging process.
Disclosure of Invention
The invention aims to provide an automatic forging production system and a control method for a connecting rod.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides an automatic forging production system of a connecting rod, which comprises a plurality of processing units,
the blanking unit is used for cutting the raw material into knots with the top size;
the heating unit is used for heating the material knot to a set temperature;
the roll forging unit is used for automatically roll forging the material knot to obtain a flat and non-folding roll blank;
the forging unit is used for flattening the roller blank, then performing pre-forging to obtain a connecting rod piece, and performing finish forging on the connecting rod piece;
the shaping unit is used for trimming and thermally correcting the connecting rod piece;
the post-processing unit is used for performing post-processing steps on the connecting rod piece, and the post-processing steps comprise forging residual heat control cooling, metal flaw detection and shot blasting;
and the operation control unit is used for optimizing after acquiring the time spent in the processing steps in the processing unit, so that the overall processing time of the system is shortened.
In one embodiment of the invention, the step of obtaining the time for the processing steps in the processing unit and then optimizing to shorten the overall processing time of the system comprises,
dividing the processing step in the processing unit into a plurality of processing sub-steps which cannot be divided again;
acquiring a processing subunit corresponding to the processing substep in the processing unit;
acquiring the corresponding relation between the processing sub-step and the processing sub-unit;
acquiring a processing logic sequence between the processing substeps;
obtaining the processing sub-steps which can be simultaneously performed according to the processing logic sequence between the processing sub-steps and the corresponding relation between the processing sub-steps and the processing sub-units;
optimizing the time of processing steps in the processing unit according to the processing sub-steps that can be performed simultaneously;
and obtaining the shortened overall processing time according to the time-consuming optimization result of the processing steps in the processing unit.
In one embodiment of the present invention, the step of obtaining a processing logic sequence between the processing sub-steps comprises,
firstly, the forging unit is transferred to the flattening step after being connected with the roller blank, and then reset is carried out;
after the step that the forging unit is reset after being transported to the flattening step after receiving the roller blank, the step that the forging unit flattens the roller blank is executed;
after the step of flattening the roller blank by the forging unit is executed, the step of spraying graphite to the pre-forging die cavity in the forging unit is executed;
after the step of spraying graphite to the pre-forging die cavity in the forging unit is executed, the step of resetting the flattened roller blank after the step of transferring the flattened roller blank to the pre-forging step by the forging unit is executed;
the step of pre-forging the roller blank by the forging unit is executed after the step of resetting the roller blank after the step of transferring the flattened roller blank to the pre-forging step by the forging unit is executed;
performing a step of spraying graphite to a finish forging die cavity in the forging unit after performing the step of pre-forging the roll blank by the forging unit;
the step of finish forging the roll blank by the forging unit is performed after the step of spraying graphite to the finish forging die cavity in the forging unit is performed.
In one embodiment of the present invention, the step of obtaining the processing sub-steps capable of being performed simultaneously according to the processing logic sequence between the processing sub-steps and the corresponding relationship between the processing sub-steps and the processing sub-unit includes,
acquiring the corresponding relation between each processing sub-step and the material knot, the roller blank or the connecting rod piece according to the processing step of the material knot, the roller blank or the connecting rod piece in the processing sub-steps;
obtaining the corresponding relation between the processing sub-unit and the material knot, the roller blank or the connecting rod piece according to the corresponding relation between each processing sub-step and the material knot, the roller blank or the connecting rod piece and the corresponding relation between each processing sub-step and the processing sub-unit;
and obtaining the processing sub-step which can be simultaneously carried out according to the corresponding relation between the processing sub-step and the material knot, the roller blank or the connecting rod piece and the corresponding relation between the processing sub-unit and the material knot, the roller blank or the connecting rod piece.
In one embodiment of the invention, the step of obtaining the processing sub-step that can be performed simultaneously according to the correspondence of the processing sub-step with the knots, the roll blanks or the connecting rod pieces and the correspondence of the processing sub-unit with the knots, the roll blanks or the connecting rod pieces comprises,
obtaining a processing flow sequence of the material knots, the roller blanks or the connecting rod pieces according to the processing logic sequence among the processing substeps and the corresponding relation between the processing substeps and the material knots, the roller blanks or the connecting rod pieces;
obtaining the working flow sequence of the processing subunit according to the corresponding relation between the processing subunit and the material knot, the roller blank or the connecting rod piece and the processing flow sequence of the material knot, the roller blank or the connecting rod piece;
obtaining the processing sub-units which are not contacted with the material knots, the roller blanks or the connecting rod pieces in the working flow sequence of the processing sub-units according to the processing flow sequence of the material knots, the roller blanks or the connecting rod pieces and the working flow sequence of the processing sub-units;
the processing sub-steps that can be performed simultaneously are obtained from the work flow sequence of the processing sub-unit and the processing sub-unit that are not in contact with the material knots, the roll blanks or the connecting rod pieces.
In one embodiment of the invention, the step of dividing the processing step in the processing unit into a number of non-repartitionable processing sub-steps comprises,
the forging unit is transferred to the flattening step after being connected with the roller blank and then reset;
the forging unit flattens the roller blank;
spraying graphite to a pre-forging die cavity in the forging unit;
the forging unit transfers the flattened roller blank to a pre-forging step and then resets;
the forging unit is used for pre-forging the roller blank;
spraying graphite to a finish forging die cavity in the forging unit;
the forging unit performs finish forging on the roll blank.
In one embodiment of the invention, the step of obtaining the processing sub-steps that can be performed simultaneously according to the work flow sequence of the processing sub-unit and the processing sub-unit that are not in contact with the material knots, the roll blanks or the connecting rod pieces comprises,
the step of spraying graphite to a pre-forging die cavity in the forging unit is executed while the step of resetting after the forging unit is transferred to the flattening step after being connected with the roller blank;
and the step of resetting after the step of transferring the flattened roller blank to the pre-forging step by the forging unit is executed, and the step of spraying graphite to the finish forging die cavity in the forging unit is executed at the same time.
In one embodiment of the invention, said step of optimizing the time of treatment steps in said processing unit according to said treatment sub-steps that can be performed simultaneously, comprises,
according to the steps of carrying out graphite spraying on a pre-forging die cavity in the forging unit while carrying out the step of carrying out resetting after the forging unit is connected with the roller blank and then transferring to the flattening process step, carrying out the step of carrying out resetting after the forging unit is connected with the roller blank and then carrying out graphite spraying on a final forging die cavity in the forging unit;
and according to the step of resetting after the step of transferring the flattened roller blank to the pre-forging step by the forging unit, simultaneously performing the step of spraying graphite to the final forging die cavity in the forging unit, and performing the steps of transferring the flattened roller blank to the pre-forging step by the forging unit, resetting and spraying graphite to the final forging die cavity in the forging unit in a combined manner.
In one embodiment of the invention, the operation control unit is further used for acquiring the position of a moving part in the processing unit and the position of the material knot, the roller blank or the connecting rod piece;
setting the position of a moving part in the processing unit and the preset position of the material knot, the roller blank or the connecting rod piece in the processing step in each processing unit;
and if the position of the moving part in the processing unit and the material knot, the roller blank or the connecting rod piece do not reach the preset position or the position is wrong, alarming.
The invention also discloses a control method for the automatic forging production of the connecting rod, which is used for controlling the production of the automatic forging production system of the connecting rod.
According to the invention, the processing time in the connecting rod forging process is analyzed, the forging processing flow is optimized, the forging time is shortened, and the quality problem caused by over-low temperature of the connecting rod due to long-time processing is avoided.
Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a connecting module of an automated forging production system for connecting rods according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of step S7 according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating step S77 according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating step S747 according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating step S751 in accordance with an embodiment of the present invention;
FIG. 6 is a diagram illustrating step S753 according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating step S721 in accordance with an embodiment of the present invention;
FIG. 8 is a diagram illustrating step S7534 according to an embodiment of the present invention;
FIG. 9 is a diagram illustrating step S76 according to an embodiment of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-blanking unit, 2-heating unit, 3-roll forging unit, 4-forging unit, 5-shaping unit, 6-post-treatment unit and 7-operation control unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides an automatic connecting rod forging system and a control method thereof, wherein the system comprises a plurality of processing units, and the processing units comprise a blanking unit 1, a heating unit 2, a roll forging unit 3, a shaping unit 5, a post-processing unit 6, and an operation control unit 7. The blanking unit 1 executes the step S1 to cut the raw material into material knots with the sizes at the tops, the blanking unit 1 mainly comprises bar shears and a sawing machine, the bar shears have the advantages of no material waste and the defects that notches are deformed to influence the clamping of a subsequent process, the length control tolerance of the bar shears to the material knots is large, the advantages and the disadvantages of the sawing machine and the bar shears are opposite, and the blanking process is realized by adopting numerical control sawing machine equipment through comprehensive analysis. The heating unit 2 executes the step S2 to heat the material knot to a set temperature, corresponding equipment is needed to replace manpower when the material knot of the lower material enters the intermediate frequency heating furnace, so that a set of automatic lifting and feeding mechanism needs to be designed to realize the purpose of lifting the material knot to a material channel of the heating furnace in order. The heating equipment adopts a medium-frequency heating furnace. The bar heating temperature is one of key parameters, so at intermediate frequency heating furnace end design infrared temperature measurement supervisory equipment, infrared temperature measurement supervisory equipment is connected with PLC, and the material festival that the temperature is too high and the temperature is crossed lowly is selected separately and is rejected. And the roll forging unit 3 executes the step S3 to automatically roll forge the material knot to obtain a flat and non-folding roll blank, the material section with qualified temperature flows into the bayonet of the automatic pusher, the material stripper pushes the heated material section to the automatic roll forging machine after sensing a material section signal, and the automatic roll forging machine automatically rolls after sensing the signal. The design of the roll forging die is different from that of a manual operation production line, and because an automatic production line is adopted, the roll blank of the connecting rod does not need a binding clip, so that about 30g of steel can be saved for each connecting rod, simultaneously, the defects are brought, the roll blank can be effectively prevented from rolling by manually clamping with a clamp, the automatic production line needs to be positioned for one time to be qualified, and the rolling can not occur. And repeatedly testing and simulating according to VERACAD simulation software to design a set of flat and non-folding roller blanks. The forging unit 4 executes the step S4 to flatten the roller blank, then carries out pre-forging to obtain a connecting rod piece, carries out final forging on the connecting rod piece, the roller blank after the roller forging is subjected to the matching operation of a truss mechanical arm and a robot, the roller blank is placed in a flattening process, the roller blank is placed on a pre-forging die cavity by the robot after the roller forging is flattened, the pre-forging die cavity is subjected to forging and pressing, the robot is required to convey the connecting rod to a final forging process, and a certain clamping space is required due to the fact that the robot is different from manual operation, so that a connecting rod ejection device is designed, the connecting rod is ejected by a certain height, and the pre-forging and the final forging are required to be ejected, so that a die with the ejection device is designed to meet the automation requirement. And the shape trimming unit 5 executes the step S5 to perform edge trimming and thermal correction on the connecting rod piece, after the preforging and final forging are completed, the robot and the truss manipulator are matched to transfer the blank to an edge trimming process, and the robot is also required to transfer, so that the edge trimming tool is connected with the PLC, after the edge trimming is completed, the robot transfers the connecting rod to the thermal correction process, then the rest edge trimming is ejected out from the lower surface of the edge trimming tool, and the truss manipulator transfers the edge trimming to a waste material box. And the post-processing unit 6 executes the step S6 to perform post-processing on the connecting rod piece, wherein the post-processing step comprises forging residual heat control cooling, metal flaw detection and shot blasting, and the operations all need to be carried out by manually operating a transfer trolley to the equipment for corresponding operation. The operation control unit 7 performs the step S7 to acquire the time spent in the processing step in the processing unit and then performs optimization, thereby shortening the overall processing time of the system.
Referring to fig. 3, the step of obtaining the time spent in the processing step in the processing unit and then optimizing the processing step to shorten the overall processing time of the system may first perform step S71 to divide the processing step in the processing unit into a plurality of processing sub-steps that are not repartitionable, specifically, the processing sub-steps are shown in the following table,
| number of | Job content | Beat(s) |
| 1 | Discharging | 8.7 |
| 2 | Automatic lifting and feeding | 5 |
| 3 | Heating is carried out | 8.5 |
| 4 | Feeding the high-temperature material section to a roll forging machine by using an automatic pusher | 1 |
| 5 | Roll forging | 5 |
| 6 | Turning angle of roller blank by truss manipulator | 2 |
| 7 | The R1 robot receives the roller blank, transfers the roller blank to the flattening step and resets | 2.8 |
| 8 | Flattening of roll blanks | 1 |
| 9 | Preforging die cavity graphite spray | 3.5 |
| 10 | The R1 robot transfers the flattened roller blank to the pre-forging step and resets | 3.2 |
| 11 | Preforging | 1 |
| 12 | Final forging die cavity spray graphite | 3.5 |
| 13 | Finish forging | 1 |
| 14 | The R2 robot, the M3 truss manipulator and the R3 robot are matched and transferred to the edge cutting process | 4 |
| 15 | Edge cutting | 1 |
| 16 | Transferring the trimming waste to a waste bin | 2.8 |
| 17 | R4 robot is transferred to the thermal correction process | 3.2 |
| 18 | Thermal correction | 2 |
| 19 | |
6 |
According to the statistics in the table, beat analysis is performed according to the equipment, the processing step of the forging unit is a bottleneck process, and the required time length is T7+ T8+ T9+ T10+ T11+ T12+ T13=18S. Step S72 may be performed next to acquire a corresponding processing subunit in the processing unit corresponding to the processing sub-step, and step S73 may be performed next to acquire a correspondence relationship between the processing sub-step and the processing subunit. Step S74 may be performed next to acquire the machining logic sequence between the processing sub-steps, and step S75 may be performed next to obtain processing sub-steps that can be performed simultaneously according to the machining logic sequence between the processing sub-steps and the correspondence between the processing sub-steps and the processing sub-units. The step S76 may be performed next to optimize the elapsed time of the processing steps in the processing unit based on the processing substeps that can be performed simultaneously, and the step S77 may be performed next to obtain a shortened overall processing time based on the result of the time-consuming optimization of the processing steps in the processing unit.
Referring to fig. 4, in the step of obtaining the processing logic sequence between the processing substeps, step S741 is executed to reset the forging unit 4 after the roll blank is transferred to the flattening step. Next, in step S742, after the forging unit 4 performs the step of returning after transferring the roll blank to the flattening step after passing the roll blank, the forging unit 4 performs the step of flattening the roll blank. Step S743 is next performed to perform the step of graphite-blasting the pre-forging cavities in the forging unit 4 after performing the step of flattening the roll blank by the forging unit 4. Next, step S744 is performed in which the forging unit 4 transfers the flattened roll blank to the pre-forging step and then resets the roll blank after performing the step of spraying graphite to the pre-forging cavity in the forging unit 4. Next, step S745 performs the step of the forging unit 4 performing the pre-forging of the roll blank after performing the step of returning the flattened roll blank after the forging unit 4 transfers the flattened roll blank to the pre-forging step. Next, step S746 performs a step of spraying graphite to the finish forging cavity in the forging unit 4 after performing the step of pre-forging the roll blank by the forging unit 4. The final step S747 performs the step of finish-forging the roll bar by the forging unit 4 after performing the step of graphite-blasting the finish forging die cavity in the forging unit 4.
Referring to fig. 5, in the step of obtaining the processing sub-steps that can be performed simultaneously according to the processing logic sequence between the processing sub-steps and the corresponding relationship between the processing sub-steps and the processing sub-unit, step S751 may be first executed to obtain the corresponding relationship between each processing sub-step and the material knot, the roller blank or the connecting rod member according to the processing step of the material knot, the roller blank or the connecting rod member in the processing sub-step. Step S752 may be performed next to obtain the corresponding relationship between the processing sub-unit and the material knot, the roller blank or the connecting rod piece according to the corresponding relationship between each processing sub-step and the material knot, the roller blank or the connecting rod piece and the corresponding relationship between the processing sub-step and the processing sub-unit. Finally, step S753 may be executed to obtain a processing sub-step that can be performed simultaneously according to the corresponding relationship between the processing sub-step and the material knots, the roller blanks, or the connecting rod members, and the corresponding relationship between the processing sub-unit and the material knots, the roller blanks, or the connecting rod members.
Referring to fig. 6, in the execution process of the step of obtaining the processing substeps that can be performed simultaneously according to the corresponding relationship between the processing substeps and the material knots, the roller blanks or the connecting rod pieces and the corresponding relationship between the processing substeps and the material knots, the roller blanks or the connecting rod pieces, step S7531 may be first executed to obtain the processing flow sequence of the material knots, the roller blanks or the connecting rod pieces according to the processing logic sequence between the processing substeps and the corresponding relationship between the processing substeps and the material knots, the roller blanks or the connecting rod pieces. Step S7532 may be executed to obtain a work flow sequence of the processing subunit according to a corresponding relationship between the processing subunit and the material knots, the roller blanks, or the connecting rod pieces, and the processing flow sequence of the material knots, the roller blanks, or the connecting rod pieces. Step S7533 may be executed to obtain the processing sub-units that do not contact the material knots, the roller blanks, or the connecting rod pieces in the work flow sequence of the processing sub-units according to the processing flow sequence of the material knots, the roller blanks, or the connecting rod pieces and the work flow sequence of the processing sub-units. Finally, step S7534 may be performed to obtain process sub-steps that can be performed simultaneously according to the work flow sequence of the processing sub-units and the processing sub-units that are not in contact with the material knots, the roll blanks or the connecting rod pieces.
Referring to fig. 7, in the process of dividing the processing step in the processing unit into a plurality of processing sub-steps that cannot be subdivided, step S721 may be performed first, and the forging unit 4 may be reset after transferring to the flattening step after passing through the roll blank. Step S722 may be performed next to the forging unit 4 to flatten the roll blank, and step S723 may be performed next to graphite-blasting the pre-forging die cavity in the forging unit 4. The forging unit 4 may then perform step S724 to transfer the flattened roll blank to the preforging step and then reset, and the forging unit 4 may then perform step S725 to preforg the roll blank. Step S726 may be performed next to graphite-spray the finish forging die cavity in the forging unit 4. The finish forging of the roll blank by the forging unit 4 may be performed next at step S727.
Referring to fig. 8, the step of obtaining the processing sub-steps that can be performed simultaneously according to the work flow sequence of the processing sub-unit and the processing sub-unit that are not in contact with the material knot, the roller blank or the connecting rod piece is performed in the process of performing step S75341, and the step of spraying graphite to the pre-forging die cavity in the forging unit 4 is performed while performing the step of resetting after the forging unit 4 is transferred to the flattening process after receiving the roller blank. Step S75342 is then executed to perform a step of returning the flattened roll blank after the forging unit 4 has transferred to the pre-forging step while performing a step of graphite-blasting the finish forging cavity in the forging unit 4.
Referring to fig. 9, the step of optimizing the timing of the processing step in the processing unit according to the processing substeps that can be performed simultaneously may be performed by performing step S761, performing the step of spraying graphite to the pre-forging cavity in the forging unit 4 according to the step of returning after the forging unit 4 receives the roll blank and transfers to the flattening step, and performing the step of returning after the forging unit 4 receives the roll blank and spraying graphite to the final forging cavity in the forging unit 4, in combination. Then, step S762 is executed to perform the step of graphite spraying to the finish forging die cavity in the forging unit 4 while performing the step of returning after the execution of the forging unit 4 transfers the flattened roll blank to the pre-forging step, and to perform the step of returning after the execution of the forging unit 4 transfers the flattened roll blank to the pre-forging step and the step of graphite spraying to the finish forging die cavity in the forging unit 4 in combination. According to the processing substeps in the table above, graphite is sprayed into the pre-forging die cavity when the R1 robot takes over the roll blank and transports the flattening step, and graphite is sprayed into the final-forging die cavity when the R1 robot transports the flattened roll blank to the pre-forging step. Thus, two steps can be integrated, the beat is saved by 6S, and the beat is finally determined to be 12S.
The operation control unit 7 is also used to obtain the position of the moving parts in the processing unit and the position of the material knots, roll blanks or connecting rod pieces. And setting the position of the moving part in the processing unit and the preset position of the material knot, the roller blank or the connecting rod piece in the processing step of each processing unit, and giving an alarm if the position of the moving part in the processing unit and the material knot, the roller blank or the connecting rod piece do not reach the preset position or are wrong.
The above description of illustrated embodiments of the invention, including what is described in the abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.
The systems and methods have been described herein in general terms as the details aid in understanding the invention. Furthermore, various specific details have been set forth in order to provide a thorough understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.
Thus, although the present invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Thus, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.
Claims (10)
1. An automatic forging production system of a connecting rod is characterized by comprising a plurality of processing units, wherein the processing units comprise,
the blanking unit cuts the raw material into knots with the top set size;
the heating unit is used for heating the material knot to a set temperature;
the roll forging unit is used for automatically roll forging the material knot to obtain a flat and non-folding roll blank;
the forging unit is used for flattening the roller blank, then performing pre-forging to obtain a connecting rod piece, and performing finish forging on the connecting rod piece;
the shaping unit is used for trimming and thermally correcting the connecting rod piece;
the post-processing unit is used for performing post-processing steps on the connecting rod piece, and the post-processing steps comprise forging residual heat control cooling, metal flaw detection and shot blasting;
and the operation control unit is used for optimizing after acquiring the time of the processing steps in the processing unit, so that the overall processing time of the system is shortened.
2. The system of claim 1, wherein said step of obtaining a time-lapse of a processing step in said processing unit for optimization to reduce an overall processing time of said system comprises,
dividing the processing step in the processing unit into a plurality of processing sub-steps which cannot be subdivided;
acquiring a processing subunit corresponding to the processing substep in the processing unit;
acquiring the corresponding relation between the processing sub-step and the processing sub-unit;
acquiring a processing logic sequence between the processing substeps;
obtaining the processing sub-steps which can be simultaneously performed according to the processing logic sequence between the processing sub-steps and the corresponding relation between the processing sub-steps and the processing sub-units;
optimizing the time usage of the processing steps in the processing unit according to the processing sub-steps that can be performed simultaneously;
and obtaining the shortened overall processing time according to the time-consuming optimization result of the processing steps in the processing unit.
3. The system of claim 2, wherein said step of obtaining a machining logic sequence between said processing sub-steps comprises,
firstly, the forging unit is reset after being connected with the roller blank and then transferred to the flattening step;
after the step that the forging unit transfers the roller blank after receiving the roller blank to the flattening step and then resets is executed, the step that the forging unit flattens the roller blank is executed;
after the step of flattening the roller blank by the forging unit is executed, the step of spraying graphite to the pre-forging die cavity in the forging unit is executed;
after the step of spraying graphite to the pre-forging die cavity in the forging unit is executed, the step of resetting the flattened roller blank after the step of transferring the flattened roller blank to the pre-forging step by the forging unit is executed;
the step of pre-forging the roller blank by the forging unit is executed after the step of resetting the roller blank after the step of transferring the flattened roller blank to the pre-forging step by the forging unit is executed;
performing graphite spraying on a finish forging die cavity in the forging unit after performing the step of pre-forging the roll blank by the forging unit;
and performing finish forging of the roll blank by the forging unit after performing the step of graphite spraying of the finish forging die cavity in the forging unit.
4. The system of claim 2, wherein said step of deriving said processing sub-steps that can be performed simultaneously based on a processing logic sequence between said processing sub-steps and a correspondence of said processing sub-steps to said processing sub-units comprises,
acquiring the corresponding relation between each processing sub-step and the material knots, the roller blanks or the connecting rod pieces according to the processing steps of the material knots, the roller blanks or the connecting rod pieces in the processing sub-steps;
obtaining the corresponding relation between the processing subunit and the material knot, the roller blank or the connecting rod piece according to the corresponding relation between each processing substep and the material knot, the roller blank or the connecting rod piece and the corresponding relation between each processing substep and the processing subunit;
and obtaining the processing sub-step which can be simultaneously carried out according to the corresponding relation between the processing sub-step and the material knot, the roller blank or the connecting rod piece and the corresponding relation between the processing sub-unit and the material knot, the roller blank or the connecting rod piece.
5. System according to claim 4, characterized in that the step of obtaining the processing sub-steps that can be performed simultaneously from the correspondence of the processing sub-steps with the knots, roll blanks or connecting rod elements and the correspondence of the processing sub-units with the knots, roll blanks or connecting rod elements comprises,
obtaining a processing flow sequence of the material knots, the roller blanks or the connecting rod pieces according to the processing logic sequence among the processing substeps and the corresponding relation between the processing substeps and the material knots, the roller blanks or the connecting rod pieces;
obtaining a working flow sequence of the processing subunit according to the corresponding relation between the processing subunit and the material knot, the roller blank or the connecting rod piece and the processing flow sequence of the material knot, the roller blank or the connecting rod piece;
obtaining the processing sub-units which are not contacted with the material knots, the roller blanks or the connecting rod parts in the processing sub-unit working flow sequence according to the processing flow sequence of the material knots, the roller blanks or the connecting rod parts and the working flow sequence of the processing sub-units;
the processing sub-steps that can be performed simultaneously are obtained from the work flow sequence of the processing sub-unit and the processing sub-unit that are not in contact with the material knots, the roll blanks or the connecting rod pieces.
6. A system according to claim 5, wherein the step of dividing the process steps in the processing unit into a number of non-repartitionable process sub-steps comprises,
the forging unit is transferred to the flattening step after being connected with the roller blank and then reset;
the forging unit flattens the roller blank;
spraying graphite to a pre-forging die cavity in the forging unit;
the forging unit transfers the flattened roller blank to the pre-forging step and then resets the roller blank;
the forging unit is used for pre-forging the roller blank;
spraying graphite to a finish forging die cavity in the forging unit;
the forging unit performs finish forging on the roll blank.
7. The system of claim 6, wherein said step of sequentially deriving said processing sub-steps that can be performed simultaneously from the workflow of said processing sub-unit and said processing sub-unit that are not in contact with said knots, roll blanks or connecting rod elements comprises,
the step of spraying graphite to a pre-forging die cavity in the forging unit is executed while the step of resetting after the forging unit is transferred to the flattening step after the roller blank is received;
and after the forging unit is executed to transfer the flattened roller blank to the pre-forging step, resetting is carried out, and simultaneously, the step of spraying graphite to a finish forging die cavity in the forging unit is executed.
8. A system according to claim 7, wherein said step of optimizing the time of processing steps in said processing unit according to said processing sub-steps that can be performed simultaneously comprises,
according to the steps of carrying out graphite spraying on a pre-forging die cavity in the forging unit while carrying out the step of carrying out resetting after the forging unit is connected with the roller blank and then transferring to the flattening process step, carrying out the step of carrying out resetting after the forging unit is connected with the roller blank and then carrying out graphite spraying on a final forging die cavity in the forging unit;
and according to the step of resetting after the step of transferring the flattened roller blank to the pre-forging step by the forging unit, simultaneously performing the step of spraying graphite to the final forging die cavity in the forging unit, and performing the steps of transferring the flattened roller blank to the pre-forging step by the forging unit, resetting and spraying graphite to the final forging die cavity in the forging unit in a combined manner.
9. The system of claim 1, wherein the operation control unit is further configured to obtain a position of a moving part in the processing unit and a position of the material knot, roll blank or connecting rod piece;
setting the position of a moving part in the processing unit and the preset position of the material knot, the roller blank or the connecting rod piece in the processing step in each processing unit;
and if the position of the moving part in the processing unit and the material knot, the roller blank or the connecting rod piece do not reach the preset position or the position is wrong, alarming.
10. An automatic forging production control method for a connecting rod, characterized by being used for production control of an automatic forging production system for a connecting rod according to any one of claims 1 to 9.
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| CN101433939A (en) * | 2008-10-10 | 2009-05-20 | 白城中一精锻股份有限公司 | Precision forging technique for cracking connection rod |
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| CN111957873A (en) * | 2020-08-31 | 2020-11-20 | 武汉新威奇科技有限公司 | Automatic shaft forging production line and method thereof |
| CN113118366A (en) * | 2021-05-10 | 2021-07-16 | 北京机电研究所有限公司 | Design of transfer and conveying of hot forging by full-automatic forging line robot |
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| CN101433939A (en) * | 2008-10-10 | 2009-05-20 | 白城中一精锻股份有限公司 | Precision forging technique for cracking connection rod |
| CN101722194A (en) * | 2009-11-05 | 2010-06-09 | 南京钢铁股份有限公司 | Gapless rolling process for single-strand steckel mill |
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