CN112191729B - Core-free conical piece spinning forming machine - Google Patents
Core-free conical piece spinning forming machine Download PDFInfo
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- CN112191729B CN112191729B CN202010952295.8A CN202010952295A CN112191729B CN 112191729 B CN112191729 B CN 112191729B CN 202010952295 A CN202010952295 A CN 202010952295A CN 112191729 B CN112191729 B CN 112191729B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a spinning forming machine for a conical part without a core die. The rotary wheel and the rotary wheel arm are fixedly connected to the sliding block of the transverse lead screw sliding rail, and the rotary wheel arm is connected with a displacement sensor and a speed sensor. The direct current gear motor is connected with the core mould through a coupler. The bolt lead screw is connected with the hand wheel and penetrates through the bearing support with the threaded hole, and the bearing support can axially slide in the L-shaped groove. A drive shaft passes through the annular pressure sensor and connects with the bearing support while the billet is clamped between the mandrel and the drive shaft. The computer receives the measured data signals of the sensors respectively, outputs control signals to the sensors, realizes the spinning forming of the conical piece under the condition that workpieces with different cone angle outer contour appearances are executed, and draws displacement and speed change curves and graphs.
Description
Technical Field
The invention relates to plastic forming equipment for materials in mechanical engineering, in particular to a spinning forming machine for a conical part of a coreless die.
Background
Spinning is an advanced metal forming technology, has the characteristics of small material loss, simple process, easy production and the like, is widely applied to the aspects of reaction kettles, shell shells, cooking utensils and the like, has unique advantages when forming conical parts, and is an important field of the advanced manufacturing technology. When the existing conical piece on the market is subjected to spinning forming, different core moulds need to be replaced according to the change of the cone angle of a target part, so that the production cost and the operation procedure are increased, and the production efficiency is low.
Chinese patent publication No. CN102554002B discloses a mandrel-free numerical control spinning apparatus for ultra-long thin-wall pipe fittings, which drives the flow of a tubular blank by a spinning wheel to cause the thinning and stacking of materials at different parts to realize the formation of conical parts at different angles, so that the apparatus can only realize the formation of conical parts in a small angle range, and the application of the apparatus in a larger cone angle range is limited. Meanwhile, the equipment aims at the blank of the grooved tubular piece, and the forming cannot be realized if the blank is a circular sheet blank.
Chinese patent publication No. CN110312579A relates to a spinning forming method and apparatus, mainly for spinning wheel forming of wheel. In this apparatus, by providing inner and outer rollers on both sides of the workpiece, workpieces of different inner and outer contours can be formed almost by radial and axial displacement of the twin rollers. However, when the inner diameter of the original workpiece is too small, the inner roller cannot be mounted inside the workpiece. The apparatus is therefore limited to workpieces of a specific profile size.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a spinning forming machine for conical parts of coreless dies, which can form the conical parts of circular arc blanks at any angle within the range of 0-90 degrees under the condition of the coreless dies; and simultaneously, recording and collecting three groups of factor data such as displacement, speed, pressure and the like, and providing corresponding curves and graphs.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a spinning forming machine for conical parts without core dies comprises a spinning wheel motion system, a core die power system, a space supporting system and a central control system, wherein the spinning wheel motion system comprises a transverse displacement sensor, a longitudinal displacement sensor, a transverse speed sensor, a longitudinal speed sensor, a spinning wheel, a left supporting table, a longitudinal lead screw sliding rail, a longitudinal coupling, a longitudinal stepping motor supporting seat, a longitudinal stepping motor, a spinning wheel supporting sliding seat, a transverse lead screw sliding rail, a transverse coupling, a transverse stepping motor, a sliding rail and a sliding block; the transverse stepping motor is connected with a lead screw in a transverse lead screw slide rail through a transverse coupler, one end of the transverse lead screw slide rail is fixedly connected to a slide block, and the other end of the transverse lead screw slide rail is fixedly connected to a slide block of a longitudinal lead screw slide rail; the sliding block is connected with a sliding rail fixedly connected to a sliding rail stand in a sliding fit mode, the sliding block can slide longitudinally along the sliding rail, and the sliding rail stand is fixedly connected to a right support table of the support system through a support column; the rotary wheel is fixedly connected to a sliding block in the transverse lead screw sliding rail through a rotary wheel supporting sliding seat, and the transverse displacement sensor, the longitudinal displacement sensor, the transverse speed sensor and the longitudinal speed sensor are respectively arranged on the rotary wheel supporting sliding seat; a computer in the central control system sends pulse signals to a transverse stepping motor and a longitudinal stepping motor through a motion control board card, and the transverse stepping motor and the longitudinal stepping motor respectively drive sliding blocks in a transverse lead screw sliding rail and a longitudinal lead screw sliding rail to further drive a spinning wheel supporting sliding seat so as to realize the control of the space motion track of the spinning wheel; the core mold power system is composed of a direct current speed reducing motor, a direct current motor coupler, a radial bearing, a core mold, a circular blank, a transmission shaft, an annular pressure sensor, a bolt, a bearing seat, a hand wheel, a bolt lead screw, an L-shaped chute, a platform supporting block, a processing platform and a PLC; the direct current speed reducing motor is connected with the core die through a coupler, the core die is supported by a radial bearing, the transmission shaft penetrates through the annular pressure sensor and then is radially fixed on a bearing seat, the bearing seat is arranged in an L-shaped groove fixed on the processing platform, and a bolt lead screw penetrates through the bearing seat with an internal threaded hole and is connected with a hand wheel; the automatic blank clamping device is characterized in that an annular pressure sensor is mounted on the bearing seat and connected with the data acquisition module, the bearing seat is driven by a bolt lead screw to slide forwards in the L-shaped groove through rotation of a hand wheel, clamping of a blank is completed in the axial direction, a computer sends a digital pulse signal to a direct current speed reduction motor through a PLC, and the direct current speed reduction motor drives the core mold and the circular blank transmission shaft to rotate, so that spinning forming of the conical piece is achieved.
The space supporting system comprises a left supporting platform, a slide rail stand, a supporting column, a right supporting platform, an integral stand, a platform supporting block and a processing platform, wherein reverse threads are arranged on two sides of the supporting column, the slide rail stand and the right supporting platform are fixedly connected to two ends of the supporting column, and the left supporting platform and the right supporting platform are fixed on the integral stand through bolts; the platform supporting block is respectively connected and fixed with the processing platform and the integral stand through bolts.
The computer of the central control system receives measurement data signals sent by the transverse displacement sensor, the longitudinal displacement sensor, the transverse speed sensor and the longitudinal speed sensor respectively, outputs control signals to the spinning wheel motion system and the core mold power system after comparison and calculation with set values, realizes spinning forming of circular arc blanks under the condition of target workpieces with different taper angle outer contour appearances, and simultaneously completes recording and acquisition of displacement, speed and pressure data and provides corresponding curves and graphs.
The size of the round blank sample formed by the conical piece is less than or equal to 45mm in diameter and less than or equal to 1.5mm in thickness.
Rubber gaskets are pasted on two sides of the annular pressure sensor, and when a blank is axially clamped, a transmission shaft or a radial bearing support is prevented from scratching a surface circuit of the blank.
And the surfaces of the spinning wheel and the blank are sprayed with lubricant, so that the blank is prevented from being stressed unevenly in the spinning forming process.
The invention has the beneficial effects that:
the spinning machine can realize the forming of conical parts of circular arc blanks at any angle within the range of 0-90 degrees under the condition of no core die. And simultaneously, recording and collecting data of three groups of factors such as displacement, speed, pressure and the like, and providing corresponding curves and graphs. The invention is characterized in that a transverse direct current stepping motor is connected with a transverse lead screw slide rail through a coupler, one end of the transverse direct current stepping motor is fixed on a slide block of a longitudinal lead screw slide rail, and the other end of the transverse direct current stepping motor is connected on a slide block of a fixed slide rail. The rotary wheel and the rotary wheel arm are fixedly connected to a sliding block of the transverse lead screw sliding rail, and a displacement sensor and a speed sensor are connected to the rotary wheel arm. The direct current gear motor is connected with the core mold through a coupler, and the core mold is radially fixed on the bearing. The bolt lead screw is connected with the hand wheel and penetrates through the bearing support with the threaded hole, and the bearing support can axially slide in the L-shaped groove. A drive shaft passes through the annular pressure sensor and connects with the bearing support while the billet is clamped between the mandrel and the drive shaft. All the sensors are connected with a central computer, and the central computer sends out instructions to control the rotating speed of the transverse stepping motor and the longitudinal stepping motor and the running speed of the direct current speed reducing motor. And meanwhile, the data acquisition and processing system is connected to record and display the change of the appearance profile of the outer surface of the arc blank.
Drawings
FIG. 1 is a perspective view of the overall structure of a coreless die conical member spin forming machine of the present invention;
FIG. 2 is a schematic view of a spinning wheel portion of the coreless cone spin-forming machine of the present invention;
FIG. 3 is a schematic view of the spindle platform structure of the coreless die conical member spin forming machine of the present invention;
in the figure: the device comprises a transverse displacement sensor 1, a longitudinal displacement sensor 2, a transverse velocity sensor 3, a longitudinal velocity sensor 4, a spinning wheel 5, a left support platform 6, a longitudinal lead screw slide rail 7, a longitudinal coupler 8, a longitudinal stepping motor support seat 9, a longitudinal stepping motor 10, a spinning wheel support slide 11, a transverse lead screw slide rail 12, a transverse coupler 13, a transverse stepping motor 14, a slide rail 15, a slide block 16, a slide rail stand 17, a support column 18, a right support platform 19, an integral stand 20, a direct current speed reducing motor 21, a direct current motor coupler 22, a radial bearing 23, a core mold 24, a circular blank 25, a transmission shaft 26, an annular pressure sensor 27, a bolt 28, a bearing seat 29, a hand wheel 30, a bolt lead screw 31, an L-shaped slide groove 32, a platform support block 33, a processing platform 34, a PLC35, a motion control board 36, a data acquisition module 37, a computer 38, a spinning wheel motion system 40 and a core mold power system 41.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1 to 3, a spinning forming machine for a coreless mold conical part comprises a spinning wheel motion system 40, a core mold power system 41, a space support system and a central control system. The upper surface of the integral stand 20 is connected with a spinning wheel moving system 40 and a core mold power system 41 through a space supporting system.
The rotary wheel motion system 40 is composed of a transverse displacement sensor 1, a longitudinal displacement sensor 2, a transverse velocity sensor 3, a longitudinal velocity sensor 4, a rotary wheel 5, a left support table 6, a longitudinal lead screw slide rail 7, a longitudinal coupling 8, a longitudinal stepping motor support base 9, a longitudinal stepping motor 10, a rotary wheel support slide 11, a transverse lead screw slide rail 12, a transverse coupling 13, a transverse stepping motor 14, a slide rail 15 and a slide block 16. The longitudinal stepping motor 10 is connected with a screw rod in the longitudinal screw rod slide rail 7 through a longitudinal coupling 8 and is fixedly connected to the left support platform 6 of the support system through a bolt. Horizontal step motor 14 is connected through the horizontal lead screw in horizontal shaft coupling 13 and the horizontal lead screw slide rail 12, and horizontal lead screw slide rail 12 one end is connected with the slider of vertical lead screw slide rail 7, and the other end passes through horizontal step motor 14 to be connected with the slider 16 of slide rail 15 on the slide rail platform 7, and slider 16 can be along slide rail 15 longitudinal sliding, and slide rail 15 fixed connection is on slide rail platform 17. The slide rail stand 17 is fixedly connected to a right support platform 19 of the support system through a support column 18. The rotary wheel 5 is fixedly connected on a rotary wheel supporting slide seat 11 through a bolt, and the rotary wheel supporting slide seat 11 is fixedly connected on a slide block in a transverse lead screw slide rail 12. The transverse displacement sensor 1, the longitudinal displacement sensor 2, the transverse speed sensor 3 and the longitudinal speed sensor 4 are respectively arranged on the rotary wheel supporting arms.
The computer sends pulse signals to the transverse stepping motor 14 and the longitudinal stepping motor 10 through the motion control board card 36, the transverse stepping motor 14 and the longitudinal stepping motor 10 respectively drive the sliding blocks in the transverse lead screw sliding rail 12 and the longitudinal lead screw sliding rail 7 to drive the spinning wheel supporting sliding seat 11 to move, and the control of the space motion track of the spinning wheel 5 can be realized.
The core mold power system 41 is composed of a direct current speed reduction motor 21, a direct current motor coupler 22, a radial bearing 23, a core mold 24, a circular blank 25, a transmission shaft 26, an annular pressure sensor 27, a bolt 28, a bearing seat 29, a hand wheel 30, a bolt lead screw 31, an L-shaped chute 32, a platform supporting block 33, a processing platform 34 and a PLC 35. The dc speed reduction motor 21 is connected to a core mold 24 through a coupling 22, and the core mold 24 is supported by a radial bearing 23. The drive shaft 26 passes through an annular pressure sensor 27 and is radially fixed to a bearing block 29. The bearing block 29 is arranged in an L-shaped groove 32 fixed on a processing platform 34, and a bolt lead screw 31 passes through the bearing block 29 with an internal threaded hole and is connected with a hand wheel 30. The bearing seat 29 is provided with an annular pressure sensor 27, and the annular pressure sensor 27 is connected with a data acquisition module 37. Through the rotation of the hand wheel 30, the bolt lead screw 31 drives the bearing seat 29 to slide forwards in the L-shaped groove 32, so that the clamping of the blank 25 is completed in the axial direction, and meanwhile, the bolt column 28 fixes the bearing seat 27 on the processing platform 34. The computer drives the direct current speed reduction motor 21 to rotate through the PLC37, and further drives the core mold 24 and the circular blank 25 to rotate through the transmission shaft 26. The size of the round blank sample 25 for conical piece forming is that the diameter is less than or equal to 45mm and the thickness is less than or equal to 1.5mm.
The space support system is composed of a left support table 6, a slide rail stand 17, a support column 18, a right support table 19, an integral stand 20, a platform support block 33 and a processing platform 34. Support column 18 both sides have reverse screw thread, fixed connection slide rail pallet 17 and right branch brace platform 19, and left branch brace platform 6 and right branch brace platform 19 pass through the bolt fastening on whole pallet 20. The platform supporting block 33 is respectively connected and fixed with the processing platform 34 and the integral stand 20 through bolts.
The computer 38 of the central control system respectively receives the measurement data signals sent by the transverse displacement sensor 1, the longitudinal displacement sensor 2, the transverse speed sensor 3 and the longitudinal speed sensor 4, and outputs control signals to the spinning wheel motion system and the core mold power system after comparison and calculation with set values, so that the spinning forming of the arc blank is realized under the target workpiece conditions of different taper angle outer contour appearances. And simultaneously, recording and collecting data of three groups of factors such as displacement, speed, pressure and the like, and providing corresponding curves and graphs.
The central control system consists of a computer 38, all sensors (pressure, displacement, velocity) and component control systems (displacement system, velocity system, pressure system) and data and image processing software. The central control system sends out the measured data to the computer in real time through the inductor, the computer compares the set value and gives various instructions to the component control system to realize the spinning forming of the conical parts with different angles, and feeds back the result to the central control system, and the central control system receives various feedback data and gives out the transverse displacement, the longitudinal displacement, the transverse speed, the longitudinal speed, the axial pressure of the blank and the change curve of the rotating speed of the direct current speed reducing motor of the blank during the spinning forming through data and image processing software.
Before the whole equipment works, the axial clamping pressure required by the initial blank 25 and the abscissa and ordinate parameters of the initial position of the rotary wheel are set on the computer 38. Then, the hand wheel 30 drives the bolt lead screw 31 to rotate, the bolt lead screw 31 sends the bearing seat 29 to a preset position, and the circular blank 25 is clamped between the core mould 24 and the transmission shaft 26. The axial pressure value measured by the annular pressure sensor 27 is compared with a preset value to judge whether the blank is clamped in the axial direction. Then, the computer sends pulses to the transverse stepping motor 14 and the longitudinal stepping motor 10 through the motion control board 36, the two stepping motors drive the transverse lead screw slide rail 12 and the longitudinal lead screw slide rail 7 to further drive the spinning wheel support slide 11, and the spinning wheel 5 can be controlled to gradually approach the circular blank 25 as the spinning wheel 5 is fixed on the spinning wheel support slide 11 through the bolt. The computer finishes the correction of the initial horizontal coordinate and the vertical coordinate of the spinning wheel by measuring the distance between the spinning wheel supporting arm and the processing platform 34 in real time by the longitudinal displacement sensor 2 and the transverse distance between the spinning wheel supporting arm and the left supporting platform 6 in real time by the transverse displacement sensor 1. Finally, according to the contour line of the outer surface of the formed target part, the required transverse displacement, longitudinal displacement, transverse speed, longitudinal speed and rotating speed parameters of the direct current speed reducing motor are set on the computer 38. The computer 38 drives the direct current speed reduction motor 21 through the PLC35 to realize the rotation of the arc sheet blank 25, and simultaneously drives the transverse stepping motor 14 and the longitudinal stepping motor 10 to further drive the rotary wheel 5 to realize the plastic forming of the arc blank 25. Meanwhile, the sensor collects the abscissa and ordinate data of the spinning wheel 5 in real time, an actual travel curve of the spinning wheel 5 is formed on the computer 38, and compared with the outer surface profile curve of the target part, the transverse speed or the longitudinal speed of the feedback spinning wheel 5 is adjusted.
Claims (4)
1. A spinning forming machine for conical parts without core mould is composed of spinning wheel moving system, core mould power system, space supporting system and central control system. The method is characterized in that: the rotary wheel motion system is composed of a transverse displacement sensor, a longitudinal displacement sensor, a transverse speed sensor, a longitudinal speed sensor, a rotary wheel, a left support table, a longitudinal lead screw slide rail, a longitudinal coupler, a longitudinal stepping motor support seat, a longitudinal stepping motor, a rotary wheel support slide seat, a transverse lead screw slide rail, a transverse coupler, a transverse stepping motor, a slide rail and a slide block;
the longitudinal stepping motor is connected with a screw rod in the longitudinal screw rod slide rail through a longitudinal coupler and is fixedly connected to a left support platform of the support system; the transverse stepping motor is connected with a screw rod in a transverse screw rod slide rail through a transverse coupler; one end of the transverse lead screw slide rail is connected with a slide block of the longitudinal lead screw slide rail, the other end of the transverse lead screw slide rail is connected with a slide block of the slide rail on a slide rail stand through a transverse stepping motor, the slide block can longitudinally slide along the slide rail, and the slide rail stand is fixedly connected to a right support table of the support system through a support column; the rotary wheel is fixedly connected to a sliding block in the transverse lead screw sliding rail through a rotary wheel supporting sliding seat, and the transverse displacement sensor, the longitudinal displacement sensor, the transverse speed sensor and the longitudinal speed sensor are respectively arranged on the rotary wheel supporting sliding seat; a computer in the central control system sends pulse signals to a transverse stepping motor and a longitudinal stepping motor through a motion control board card, and the transverse stepping motor and the longitudinal stepping motor respectively drive sliding blocks in a transverse lead screw sliding rail and a longitudinal lead screw sliding rail to further drive a spinning wheel supporting sliding seat so as to realize the control of the space motion track of the spinning wheel; the core mold power system comprises a direct current speed reduction motor, a direct current speed reduction motor coupler, a radial bearing, a core mold, a round blank, a transmission shaft, an annular pressure sensor, a bolt, a bearing seat, a hand wheel, a bolt lead screw, an L-shaped chute, a platform supporting block, a processing platform and a PLC; the direct-current speed reduction motor is connected with the core die through a coupler, the core die is supported by a radial bearing, the transmission shaft penetrates through the annular pressure sensor and then is radially fixed on a bearing seat, the bearing seat is arranged in an L-shaped groove on the processing platform, and a bolt lead screw penetrates through the bearing seat with an internal threaded hole and is connected with a hand wheel; the computer controls the direct current speed reducing motor through the PLC, and then drives the core mold and the round blank transmission shaft to rotate, so that the spinning forming of the conical piece is realized;
the space supporting system comprises a left supporting table, a slide rail stand, a supporting column, a right supporting table, an integral stand, a platform supporting block and a processing platform, wherein reverse threads are arranged on two sides of the supporting column, the slide rail stand and the right supporting table are fixedly connected with two ends of the supporting column, and the left supporting table and the right supporting table are fixed on the integral stand through bolts; the platform supporting block is respectively connected and fixed with the processing platform and the integral stand through bolts;
a computer in the central control system drives a direct current speed reduction motor to drive a blank to rotate through a PLC (programmable logic controller), and an annular pressure sensor acquires pressure in blank forming in real time; the computer drives a stepping motor to drive a rotary wheel to advance through a motion control board card; meanwhile, the computer receives speed and displacement data signals sent by the transverse displacement sensor, the longitudinal displacement sensor, the transverse speed sensor and the longitudinal speed sensor respectively, the actual motion track of the rotary wheel is compared with the preset blank forming profile in the computer, the actual motion track of the rotary wheel is adjusted in real time, the rotary press forming of conical parts with different cone angles is completed, meanwhile, the recording and the acquisition of displacement, speed and pressure data are completed, and corresponding curves and graphs are given.
2. The mandrel-less taper spinning forming machine of claim 1, wherein: the size of the round blank sample formed by the conical piece is less than or equal to 45mm in diameter and less than or equal to 1.5mm in thickness.
3. The mandrel-less taper spinning forming machine of claim 1, wherein: rubber gaskets are pasted on two sides of the annular pressure sensor, so that when a blank is axially clamped, a transmission shaft or a radial bearing support is prevented from scratching a surface circuit of the blank.
4. The mandrel-less taper spinning forming machine of claim 1, wherein: and the surfaces of the spinning wheel and the blank are sprayed with lubricant, so that the blank is prevented from being stressed unevenly in the spinning forming process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010952295.8A CN112191729B (en) | 2020-09-11 | 2020-09-11 | Core-free conical piece spinning forming machine |
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| CN202010952295.8A CN112191729B (en) | 2020-09-11 | 2020-09-11 | Core-free conical piece spinning forming machine |
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| CN112191729A CN112191729A (en) | 2021-01-08 |
| CN112191729B true CN112191729B (en) | 2022-10-14 |
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| CN115415410B (en) * | 2022-11-03 | 2023-03-14 | 山东鑫迈德数控设备有限公司 | Numerical control knife adjusting device for corner assembling machine |
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