CN109794555B - roll forming tool, device and method for incremental forming - Google Patents
roll forming tool, device and method for incremental forming Download PDFInfo
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- CN109794555B CN109794555B CN201910280852.3A CN201910280852A CN109794555B CN 109794555 B CN109794555 B CN 109794555B CN 201910280852 A CN201910280852 A CN 201910280852A CN 109794555 B CN109794555 B CN 109794555B
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Abstract
The invention discloses rolling forming tools, devices and methods for incremental forming, which solve the problems of large friction resistance between a forming tool and a plate in the prior art and limited application range of a device realized by a large inclination angle, have the advantages of convenient operation and effective lubrication on the plate in the processing process, and have the following scheme that rolling forming tools for incremental forming comprise ball seats with set length, wherein the ball seats are arranged in a hollow manner, lubricating oil is temporarily stored in the ball seats, forming balls, part of the forming balls can be nested at the end parts of the ball seats, gaps can be formed between the forming balls and the ball seats, the forming balls are driven by the ball seats to form a workpiece to be processed, and the lubricating oil lubricates the workpiece to be processed through the gaps between the forming balls and the ball seats.
Description
Technical Field
The invention relates to the technical field of progressive forming, in particular to rolling forming tools, devices and methods for progressive forming.
Background
The progressive forming process of the metal plate is to decompose a complex three-dimensional model according to series contour lines and process the complex three-dimensional model on a two-dimensional plane layer by a computer-controlled forming tool, the method can process any complex workpiece in principle and does not need a die, and the method has great advantages for manufacturing small batches of personalized new products.
The inventor finds that a scholars puts forward a rotary forming tool to realize the rotation of a roller in two mutually vertical directions and reduce the friction between the forming tool and a sheet material in the forming process, but for a formed part with a complicated shape in practical application, the forming tool and the sheet material are complex to contact, the size direction of the rotary moment is uncertain, the forming tool is difficult to freely rotate around the axis of a forming tool handle by the rotary tool body, the rotation axis is always vertical to the movement direction of the forming tool, the scheme put forward by the scholars enables the forming tool to be in a non-centrosymmetric structure, but the rotary tool is not suitable for occasions with high-speed rotation of a main shaft, and the problems of complex programming, difficult operation and the like are caused by the coordination of the feeding speed and the rotating speed of the main shaft when.
Therefore, the existing forming tool and the plate have the problems of large frictional resistance and incapability of realizing large-angle progressive forming of the plate in a large using range due to structural limitation.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides rolling forming tools for incremental forming, solves the problems that the traditional incremental forming tools have large friction force in sliding contact with a sheet material and the forming angle of the head of the existing forming tool is limited, and realizes the rolling contact of a large-angle forming piece.
specific schemes of rolling forming tools for incremental forming are as follows:
A roll forming tool for incremental forming, comprising:
the ball seat is provided with a set length, the ball seat is arranged in a hollow mode, and lubricating oil is temporarily stored in the ball seat;
the forming ball, some forming balls can be nested at the end of the ball seat, a gap can be formed between the forming ball and the ball seat, the forming ball is driven by the ball seat to form a workpiece to be processed, and the lubricating oil lubricates the workpiece to be processed through the gap between the forming ball and the ball seat.
According to the rolling forming tool, the forming balls are movably arranged on the ball seats, the forming tool and the workpiece are in rolling friction, so that the problem that the friction resistance between the integral forming tool and the workpiece is large in the machining process of the forming tool is effectively relieved, the workpiece can be directly lubricated through the ball seats, manual addition is not needed, and the working efficiency is improved.
, in order to avoid the forming ball falling off accidentally during the movement of the forming tool, the ball seat is provided with a suction mechanism for generating suction force to the forming ball opposite to the other end of the forming ball.
, a cutter handle is arranged at the end part of the adsorption mechanism and connected with the ball seat, and the arrangement of the cutter handle is convenient for installing the rolling forming tool on a machine tool.
, the adsorption mechanism comprises a coil arranged in the annular direction of the ball seat or the tool holder, wherein the ball seat and the forming ball form an electromagnet, the ball seat serves as an iron core, the forming ball serves as an armature, and the ball seat and the forming ball are made of materials such as high-speed steel and the like;
the inside of the end face of the ball seat is a spherical surface which is matched with the forming ball, the diameter of the forming ball is larger than the width of the matched end part of the ball seat and the forming ball, so that the normal tangent to the inclined plane of the forming ball and the formed workpiece can be set at a set angle with the end part of the ball seat, the angle is 0-15 degrees, the processing of a larger inclination angle can be realized, the forming ball and the ball seat are connected in an adsorption mode, no additional mechanical connecting mechanism exists, and the interference to the forming part is reduced, so that the processing of a workpiece with a larger inclination angle is easier to realize.
, the tool handle is communicated with the inside of the ball seat, the tool handle is connected with the oil storage tank through a rotary oil seal and a pipeline, the rotary oil seal is provided with a tool handle oil inlet, the pipeline is connected with the tool handle oil inlet, and the rotary oil seal is fixed on the machine tool, so that the tool handle is arranged relative to the rotary oil seal and cannot drive the pipeline to rotate, the oil seal can rotate relative to the main shaft, the oil way is smooth, the pipeline is provided with a high-pressure oil pump, and the pipeline is provided with an electromagnetic valve for controlling the input of lubricating oil.
, a hollow oil storage pipe is arranged in the ball seat, an oil storage cavity is arranged at the end part of the oil storage pipe, and the oil storage cavity is provided with at least circles of oil injection holes for injecting lubricating oil to the forming ball;
or , the number of oil spray holes increases gradually from the inner side to the outer side of the oil storage cavity, and oil is supplied to the forming ball through the oil spray holes.
an apparatus for incremental forming, comprising:
the rolling forming tool for incremental forming;
the fixture is used for clamping a workpiece to be processed;
the lifting mechanism drives the clamp to lift;
and the support column is arranged below the clamp to support the workpiece in the machining process.
In the device, anchor clamps include punch holder and lower plate, and two upper and lower splint pass through bolted connection, and the tip of support column passes through the bottom plate and supports, and elevating system can locate between lower plate and the bottom plate, and passes anchor clamps and set up the guide post, and anchor clamps are elevating movement along the guide post.
, the apparatus further includes a grease collecting housing around the periphery of the jig for collecting lubricating oil ejected from the roll forming tool.
, the oil collection shell comprises side plates arranged on the periphery of the clamp, the side plates can be opened, a cover plate is movably arranged on the top sides of the side plates, the inner sides of the side plates are fixed with the clamp, the side plates are provided with oil return holes, the oil return holes are connected with an oil storage tank through oil return hole pipelines, lubricating oil filters are arranged on the oil return hole pipelines, the bottom sides of the side plates are bent inwards, the side plates are conveniently and fixedly connected with the clamp, oil grooves are formed between the side plates and the clamp, and the bottom sides of the side plates are provided with set inclination angles, so that lubricating oil can be conveniently recycled.
In these schemes, the apron includes flexible lid, and flexible lid has fixed height, and the week side of flexible lid sets up the fagging, the fagging with the curb plate can dismantle the connection, the roll forming tool pass flexible lid, the avris of fagging has vertical edge, the apron of being convenient for is connected with the curb plate.
A method for using a device for incremental forming, comprising:
1) clamping a workpiece to be processed through a clamp;
2) the rolling forming tool is arranged on a machine tool, and a processing track of the rolling forming tool is set;
3) processing a workpiece to be processed, and lubricating the workpiece to be processed through a gap between a forming ball and a ball seat;
4) and (4) with the gradual descending of the rolling forming tool, the clamp drives the workpiece to be processed to gradually descend, and the process is repeated continuously until the processing is finished.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, through the arrangement of the gap between the ball seat and the forming ball, the forming ball is in rolling friction relative to the workpiece to be processed, so that the friction is initially reduced, in addition, a stable oil film is formed between the forming ball and the ball seat, the friction force between the forming ball and the ball seat is reduced, and the forming ball can be ensured to freely roll in the ball seat.
2) The ball seat is arranged in the hollow mode, so that the workpiece to be machined can be lubricated conveniently, the formed plate can be washed by lubricating oil, the surface of the plate is cleaned, and particles falling off during the previous machining of the plate are prevented from serving as abrasive particles in the next machining process to damage the machined surface.
3) By the arrangement of the oil collecting shell, the lubricating oil can be recycled, the safety of a processing environment is ensured, the influence of the external environment on the processing process is avoided, and the splashing of oil liquid and scraps in the processing process is also avoided.
Drawings
The accompanying drawings, which form a part of the specification , are included to provide a further understanding of the invention, and are included to explain the invention and its practical application and to explain the invention without limitation.
Fig. 1 is a schematic perspective view of an apparatus according to an embodiment of the present invention.
Fig. 2 is a perspective frame view of a progressive forming tool in an embodiment of the present invention.
FIG. 3(a) is a front view of a progressive forming tool in an embodiment of the present invention;
FIG. 3(b) is a schematic cross-sectional view taken along line A-A of FIG. 3(a) according to an embodiment of the present invention.
FIG. 4 is a bottom view of the oil collection shell side plate and the fixture in the embodiment of the present invention.
FIG. 5 is an installation front view of an oil collection shell side plate and a clamp in the embodiment of the invention.
Fig. 6 is a schematic view of the installation of the oil collection shell in the embodiment of the invention.
FIG. 7 is a schematic view of the installation of the telescopic cover and the knife handle in the embodiment of the invention.
FIG. 8 is a schematic view of the forming angle between the formed ball and the ball seat in the embodiment of the present invention.
FIG. 9 is a cross-sectional view of an apparatus in an embodiment of the invention;
FIG. 1 illustrates a tool shank; 2, a knife handle oil inlet; 3 rotating the oil seal; 4, an adsorption mechanism; 5, ball seats; 6, plates; 7 forming the ball; 8, collecting an oil shell; 9 a guide post; 10, an upper clamping plate; 11, a lower clamping plate; 12 oil return holes; 13 support columns; 14 a base plate; 15 oil inlet holes of the oil storage tank; 16 oil tank oil filler holes; 17 an oil storage tank; 18 oil outlet holes of the oil storage tank; 19 oil inlet hole of high-pressure oil pump; 20 high pressure pump power input shaft; 21 a high-pressure oil pump; 22 a pressure regulating valve; 23, a telescopic cover; 24 coils; 25 bearing balls; 26 an oil reservoir chamber; 27 oil spray holes; 28 oil outlet of the high-pressure oil pump; 29 a lube oil filter; 30 electromagnetic valves; 31 a bolt; 32 fastening bolts; 33 a hinge; 34, buckling; 35 side plates; 36 bracing plates.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide a further description of the invention unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background, the prior art has shortcomings, and in order to solve the above technical problems, the present invention proposes rolling forming tools for incremental forming.
In typical embodiments of the invention, as shown in fig. 2, rolling forming tools for incremental forming comprise a ball seat 5 with a set length, the ball seat 5 is hollow, lubricating oil is temporarily stored in the ball seat 5, a forming ball 7, part of the forming ball 7 can be nested at the end of the ball seat 5, the ball seat 5 is used for limiting the forming ball 7, a gap can be formed between the forming ball 7 and the ball seat 5, the forming ball 7 is driven by the ball seat 5 to form a workpiece to be processed, and the lubricating oil lubricates the workpiece to be processed through the gap between the forming ball 7 and the ball seat 5.
According to the rolling forming tool, the forming balls 7 are movably arranged on the ball seat 5, the forming tool and the workpiece are in rolling friction, so that the problem of large friction resistance between the former integral forming tool and the workpiece is effectively solved in the machining process of the forming tool, the workpiece can be directly lubricated through the ball seat 5, manual addition is not needed, and the working efficiency is improved.
In order to avoid accidental falling of the forming ball 7 during the movement of the forming tool, the ball seat 6 is provided with suction means for generating suction on said forming ball, opposite the other end of the forming ball.
The end part of the adsorption mechanism is provided with a tool handle 1, the tool handle 1 is connected with the ball seat 5, and the arrangement of the tool handle 1 is convenient for installing the rolling forming tool in a machine tool.
The adsorption mechanism 4 comprises a coil 24 arranged in a ring shape of the ball seat 5 or the tool holder 1, the coil 24 is arranged on the tool holder 1 through a ball bearing 25, the side of the tool holder 1 is conical, a thread structure is arranged on the inner side of the end for fastening the ball seat 5, the coil 24 is arranged on the outer side of the ball bearing 25, the ball seat 5 and the forming ball 7 form electromagnets, so that the adsorption mechanism 4 can provide large vertical upward forces to the forming ball 7, the forces can enable the forming ball 7 to be stable in the ball seat 5 under the condition that a large force is applied to a plate when a forming tool is installed, the current of the coil 24 is increased if necessary, the adsorption mechanism 4 can enable the forming ball 7 to be stable under the condition that the plate applies the large force, the adsorption mechanism 4 is convenient to generate enough suction force, and the response speed and frequency are very high.
The coil is a conventional product on the market, the size of the coil is that the inner diameter is 20mm, the outer diameter is 40mm, the height is 32mm, the rated voltage is 24v direct current, the number of turns is 1900 turns, the power is 10w, and the maximum nominal suction force is 300N. Can meet the size specification of the forming tool used in the conventional progressive forming experiment.
The part of ball 7 that takes shape inlays in ball seat 5, and ball 7 that takes shape can roll wantonly in ball seat 5, and the diameter of ball 7 that takes shape is greater than the internal diameter that ball seat 5 set up the ball tip that takes shape, and ball seat 5 sets up the tip that takes shape the ball and is convenient for set up ball 7 for loudspeaker form, at the shaping in-process, cuts off the power supply to the coil, need not to adsorb ball 7 that takes shape this moment.
Handle of a knife 1 with 5 inside intercommunications of ball seat, and handle of a knife 1 sets up handle of a knife oil inlet 2, ball bearing 25 lateral part sets up swivel oil blanket 3, swivel oil blanket 3 department is located to handle of a knife inlet port 2, handle of a knife oil inlet 2 is connected with batch oil tank 17 through the pipeline, the pipeline sets up the high-pressure oil pump, the pipeline is connected with the high-pressure oil pump oil outlet 28 of high-pressure oil pump, set up solenoid valve 30 at the pipeline, an input for controlling lubricating oil, batch oil tank 17 sets up batch oil tank oil filler point 16, batch oil tank oil outlet 18 is connected with high-pressure oil pump inlet port 19, and be equipped with the lubricating oil filter at the pipeline that batch oil tank and high-pressure oil pump are connected equally, the high-pressure oil.
A hollow oil storage pipe is arranged in the ball seat 5, the oil storage pipe is made of high-speed steel and is communicated with the oil inlet 2 of the cutter handle, as shown in fig. 3(a), an oil storage cavity 26 is arranged at the end part of the oil storage pipe, and at least circles of oil injection holes 27 are formed in the oil storage cavity 26 so as to inject lubricating oil to the forming ball 7;
in some embodiments, the number of the oil injection holes 27 gradually increases from the inner side to the outer side of the oil storage chamber 26, and oil is supplied to the forming ball through the oil injection holes, as shown in fig. 3(b), 15 oil injection holes in three layers are uniformly distributed on the contact surface of the cylindrical forming ball seat and the forming ball, so that enough lubricating oil can be obtained to form an oil film when the forming ball side is subjected to concentrated stress, and a stable oil film is formed between the forming ball and the cylindrical forming ball seat.
A device for incremental forming comprises a rolling forming tool for incremental forming, a clamp for clamping a workpiece to be processed, a lifting mechanism for driving the clamp to lift, and a support column 13 arranged below the clamp to support the workpiece in the processing process.
In the device, anchor clamps include punch holder 10 and lower plate 11, and two upper and lower splint pass through bolt 31 and connect, and the tip of support column 13 passes through bottom plate 14 and supports, and elevating system can locate between lower plate 11 and the bottom plate 14, and passes anchor clamps and set up guide post 9, and anchor clamps are along guide post 9 and do elevating movement.
The apparatus further comprises an oil collecting casing 8 surrounding the periphery of the jig, the oil collecting casing 8 being for collecting the lubricating oil ejected from the roll forming tool.
As shown in fig. 4-6, the oil collecting shell 8 includes four side plates 35 disposed on the periphery of the fixture, and part of the adjacent side plates are fastened, wherein side plates are connected with the adjacent side plates through hinges 33, the side plates are connected with another side plates through detachable fasteners, wherein two side plates 35 can be opened, and the top sides of the side plates are movably provided with cover plates, which are also connected with the side plates through detachable fasteners, the other two side plates 35 are fixed with the fixture, the side plates are provided with oil return holes 12, the oil return holes 12 are connected with the oil storage tank 17 through oil return hole pipelines, and the oil return hole pipelines are provided with lubricating oil filters 29, and the oil return hole pipelines are connected with the oil storage tank inlet 15 of the oil storage tank 17.
in some embodiments, the cover plate includes a telescopic cover 23, the telescopic cover 23 has a height , the telescopic cover 23 prevents the high pressure oil sprayed by the forming tool from splashing around and excessive loss of the high pressure oil, the telescopic cover 23 is made of transparent soft rubber to facilitate observation of the plate during forming, and the upper end of the telescopic cover 23 is wave-shaped to ensure fixed moving range, so the telescopic cover 23 can move in height and horizontal direction, and the processing path of the rolling forming tool is not affected, the side of the telescopic cover 23 is provided with a supporting plate 36, the supporting plate is detachably connected with the side plate 35, the rolling forming tool passes through the central preformed hole of the telescopic cover 23, the supporting plate 36 and the side plate 35 are made of organic glass material, and the observation of the condition during processing is facilitated.
The invention adopts the ball seat 5 and the forming ball 7 to form a two-section forming tool, wherein the forming ball is a standard part and is made of hard alloy or bearing steel, the price is relatively very cheap while the quality is ensured by batch production, and when the -shaped forming ball fails, the forming ball is directly replaced, thereby greatly saving time and money cost.
As shown in FIG. 8, the radius r of the formed ball 7 was 10mm, the vertical height h of the overlap between the formed ball 7 and the ball seat 5 was 8.1mm, the forming angle of the plate material in this state was analyzed, the forming angle α was 79.03 degrees in this state, the force of the formed ball 7 was analyzed, and the formed ball 7 received the force F of the plate material 6 acting on the tangent point B and directed vertically upwardBAnd a force F acting on the tangent point A and directed in the AC direction by the sheet 6AC. Since the direction of the resultant force obtained by combining these two forces is inevitably in a direction between the AC direction and the vertically upward direction, the resultant force F of the ball seat 5 is applied to the formed ball 7 to stabilize the formed ball 7BAnd FACThe direction should be a direction between the CA direction and the vertically downward direction, as can be seen from fig. 8, the ball seat 5 can provide forces, and thus the ball 7 is in a stable state, the suction mechanism 4 can ensure that the formed ball 7 does not fall under the action of gravity when the forming tool is installed, the current of the coil 24 can be increased if necessary, the electromagnet can provide larger vertical upward forces to the ball 7, and the force can ensure that the formed ball 7 can be still stable in the ball seat 5 under the condition that the plate applies larger force, the yield strength of the plate 6 is set as sigma, and the vertical direction projected area of the contact between the plate 6 and the formed ball 7 is set as SLower part，
The vertical projection area of the contact between the ball seat 5 and the formed ball 7 is SOn the upper part＝π[r2-(r-h)2]The pressure of the high-pressure oil is POilOil injectionProjected area S of holeSpraying nozzleAbout 15 pi mm2The forming force in the vertical direction is FVerticalAccording to POil MAX×SOn the upper part＝σ×SLower partFor example, 1050 pure aluminum plate is formed, and the forming angle α is 45 degrees progressive forming, wherein the yield strength sigma of the pure aluminum obtained by a tensile test is 38.91MPaOil MAX×SOn the upper part＝σ×SLower partCan obtain the product
P obtained finallyOil MAX14.27 Mpa. Since the sheet 6 is formed FSolid blockIncreases from zero, so POilAlso increases from zero. Considering that the yield strength of alloy or other materials is higher than that of pure aluminum, it is recommended to select a high-pressure oil pump with the maximum pressure of 25MPa, the discharge capacity of 25ml/r and the rated rotating speed of 2000 r/min.
A method for using a device for incremental forming, comprising:
1) clamping a workpiece to be processed through an upper clamping plate and a lower clamping plate, locking the workpiece through bolts and nuts, and arranging a side plate of an oil collecting shell;
2) the method comprises the steps that a rolling forming tool is arranged on a milling machine, the length of the rolling forming tool exposed outside after the rolling forming tool is arranged on a tool handle 1 is 60mm, the processing track of the rolling forming tool is set, and a three-dimensional model of a formed part is drawn through CAD/CAM software;
3) processing a workpiece to be processed, cutting off the power supply of the coil 24, opening the electromagnetic valve 30 to start oil injection to the forming ball, and adjusting the pressure regulating valve 22 to enable the forming ball to roll 7;
4) the fixture drives the workpiece to be machined to gradually descend along with the gradual descending of the rolling forming tool until the machining is finished;
5) closing the electromagnetic valve 30 to stop oil injection, operating the buckle, opening the oil collecting shell, loosening the clamp bolt by using a wrench, taking out the formed plate, and replacing the plate again to carry out the next groups of processing or remove all the devices to stop processing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1, A roll forming tool for incremental forming, comprising:
the ball seat is provided with a set length, the ball seat is arranged in a hollow mode, and lubricating oil is temporarily stored in the ball seat;
the forming ball, part of which can be nested at the end of the ball seat, a gap can be formed between the forming ball and the ball seat, the forming ball is driven by the ball seat to form a workpiece to be processed, and lubricating oil lubricates the workpiece to be processed through the gap between the forming ball and the ball seat;
high-pressure oil is sprayed out of the forming tool, and a stable oil film is formed between the forming ball and the ball seat.
2. roll forming tool for incremental forming according to claim 1, wherein the ball seat is provided with suction means for creating suction on the forming ball relative to the other end of the forming ball.
3. A roll forming tool for incremental forming according to claim 2, wherein a handle is provided at the end of the suction mechanism, and the handle is connected with the ball seat.
4. A rolling forming tool for incremental forming according to claim 3, wherein the suction mechanism includes a coil provided in a circumferential direction of the ball seat or the tool holder, the ball seat and the forming ball constitute an electromagnet;
the handle of a knife with the ball seat inside intercommunication, and the handle of a knife passes through the pipeline and is connected with the batch oil tank, high-pressure oil pump is connected to the pipeline.
5. A rolling forming tool for incremental forming as claimed in claim 1, wherein the ball seat end surface is internally spherical and the spherical surface is engaged with the forming ball, the diameter of the forming ball is larger than the width of the engaged end of the ball seat and the forming ball, so that the normal tangent to the inclined surface of the forming ball and the formed workpiece can be set at a predetermined angle with the end of the ball seat.
6. A roll forming tool for incremental forming according to claim 1, wherein a hollow oil reservoir tube is provided in the ball seat, an oil reservoir chamber is provided at an end of the oil reservoir tube, and the oil reservoir chamber is provided with at least oil jet holes for injecting lubricating oil to the forming balls;
the number of the oil spray holes is gradually increased from the inner side to the outer side of the oil storage cavity.
An apparatus for incremental forming of 7, , comprising:
a roll forming tool for incremental forming of any one of claims 1 to 6 of claim ;
the fixture is used for clamping a workpiece to be processed;
the lifting mechanism drives the clamp to lift;
and the support column is arranged below the clamp to support the workpiece in the machining process.
8. The apparatus for incremental forming according to claim 7, further comprising a casing for collecting lubricating oil discharged from the rolling forming tool, around the circumference of the jig.
9. apparatus according to claim 8, wherein the oil collecting casing includes a side plate provided on the periphery of the jig, the side plate being openable, and a cover plate being movably provided on the top side of the side plate;
the apron sets up the fagging including flexible lid, the week side of flexible lid, the fagging with the curb plate can dismantle the connection, the roll forming tool pass flexible lid sets up.
10. Use of the apparatus for progressive forming according to any one of claims 7 to 9 wherein is comprised of:
1) clamping a workpiece to be processed through a clamp;
2) the rolling forming tool is arranged on a machine tool, and a processing track of the rolling forming tool is set;
3) processing a workpiece to be processed, and lubricating the workpiece to be processed through a gap between a forming ball and a ball seat;
4) and (4) with the gradual descending of the rolling forming tool, the clamp drives the workpiece to be processed to gradually descend, and the process is repeated continuously until the processing is finished.
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| JP2002102945A (en) * | 2000-09-25 | 2002-04-09 | Honda Motor Co Ltd | Incremental stretch forming tool |
| CN100447690C (en) * | 2006-03-07 | 2008-12-31 | 华中科技大学 | Electromagnetic inching forming method and its device for plate moving coil |
| US9682418B1 (en) * | 2009-06-18 | 2017-06-20 | The Boeing Company | Method and apparatus for incremental sheet forming |
| CN102581108B (en) * | 2012-02-09 | 2014-08-20 | 上海交通大学 | Wide-angle progressive shaping rolling toolhead and shaping method thereof |
| CN102554007B (en) * | 2012-02-09 | 2015-09-09 | 上海交通大学 | The progressive compound molding device of a kind of sheet metal deep drawing |
| CN207583868U (en) * | 2017-10-24 | 2018-07-06 | 洛阳轴承研究所有限公司 | Fore shaft is in the angular contact ball bearing assembly tooling of outer ring |
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