CN114453467A - Open-loop type expanding machine suitable for flat guide bar - Google Patents
Open-loop type expanding machine suitable for flat guide bar Download PDFInfo
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- CN114453467A CN114453467A CN202111629222.6A CN202111629222A CN114453467A CN 114453467 A CN114453467 A CN 114453467A CN 202111629222 A CN202111629222 A CN 202111629222A CN 114453467 A CN114453467 A CN 114453467A
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- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses an open-loop type expanding machine suitable for a flat guide bar, which comprises a first clamping device, a second clamping device and a radian clamping device, wherein the first clamping device, the second clamping device and the radian clamping device are used for placing a workpiece, the radian clamping device is arranged between the first clamping device and the second clamping device, the open-loop type expanding machine also comprises a central shaft, a left-right rotating power mechanism, a radian plate stabilizing motor, a reverse drawing mechanism and a control center, the first clamping device, the second clamping device and the radian clamping device are all arranged at the axial position of the central shaft, the second clamping device rotates concentrically around the central shaft under the driving of the left-right rotating power mechanism so as to move inwards, and the moving speed of the inner side movement is limited by the second clamping device under the reverse pulling force of the reverse drawing mechanism. The invention solves the problem of consistent radian of the end part of the conducting bar, has high automation degree, is economical and practical, can replace different dies and greatly quickens the processing period.
Description
Technical Field
The invention relates to the field of new energy generator guide bar expanding equipment, in particular to an open-loop expanding machine suitable for a flat guide bar.
Background
In the current new energy wind power industry, direct drive and double feed are generally adopted for a large-scale wind power generation motor, and because the double feed can save a large amount of raw materials, the new energy is supposed to be developed to the double feed aspect at present, so that the raw materials can be saved,
the former used conducting bars are all round, have small diameters, are knocked out by a profiling tool, and are bent manually, so that the radian difference of the end parts of the conducting bars is large, the utilization rate of round wires is low, the groove filling rate is high, and the heat dissipation is poor;
and the closed conducting bar of former type that rises bends, the technical shortcoming lies in that the conducting bar rises the type radian and need to make up through supporting model radian mould core and the fixed fastener of bending, need adjust many times sometimes between conducting bar, radian mould core, the fixed fastener three in the bending process, the mould is changed to the tear open difficulty, whole process mainly relies on the manual shaping of beating, causes the conducting bar tip radian difference greatly, and the back inner and outer circle wire casing laminating degree of inserting the line is low, poor stability. Meanwhile, batch errors easily occur to the bending precision of the conducting bars, and an automatic bending device and control are lacked.
Disclosure of Invention
The invention aims to provide an open-loop type expanding machine suitable for a flat guide bar. The problem of the conducting bar tip radian unanimity is solved, degree of automation is high, and is economical and practical, can replace different moulds, accelerates processing period greatly.
The technical scheme for realizing the purpose of the invention is as follows: the utility model provides an open-loop type expanding machine who is adapted to flat conducting bar, includes first clamping device, second clamping device, the radian clamping device that is used for placing the work piece, the radian clamping device is located between first clamping device and the second clamping device, still includes center pin, left and right sides rotation power unit, radian plate stabilizing motor, reverse pull-in mechanism and control center, first clamping device, second clamping device, radian clamping device all locate the axis position of center pin, second clamping device is around the drive of left and right sides rotation power unit the center pin is concentric rotatory thereby moves to the inboard, just second clamping device restricts the removal speed that the inboard removed under the reverse pulling force of reverse pull-in mechanism, the expanding method of open-loop type expanding machine who is adapted to flat conducting bar includes following step:
step one, adjusting the first clamping device sequence and the second clamping device sequence to the positions of the drawing,
placing the workpiece on the first clamping device, the radian clamping device and the second clamping device, wherein the first clamping device and the first clamping device clamp the workpiece for omnibearing fixation;
step three, starting the automatic program again, driving the second clamping device to concentrically rotate around the central shaft 8 by the left-right rotating power mechanism, so that the second clamping device moves inwards,
step four, rotating and simultaneously limiting the moving speed of the inner side movement by the reverse pulling-in mechanism,
step five, the radian clamping device rotates around the central shaft under the action of the workpiece,
step six, the rotation angle signals of the second clamping device and the radian clamping device are transmitted to a control center, the control center compares the signals, the control center sends the signals to enable a screw rod of the radian plate stabilizing motor to rotate according to the calculation result, and therefore the radian clamping device is pushed to move axially along a central shaft,
and step seven, changing the workpiece from a straight line to a 3D structure fox line.
Preferably, the reverse pull-in mechanism includes a reverse pull-in shaft and a reverse pull-in drive, and further includes a sliding mechanism for guiding the second clamping device to move, the reverse pull-in drive drives the reverse pull-in shaft connected to the second clamping device to slide reversely along the sliding mechanism, and a reverse pull-in driving force of the reverse slide is smaller than a driving force of the second clamping device for rotating around the central shaft.
Preferably, the first clamping device, the second clamping device, the radian clamping device, the central shaft, the left and right rotating power mechanism, the radian plate stabilizing motor and the reverse drawing mechanism are respectively provided with two groups, are arranged in a mirror image mode relative to the center of the workpiece and are used for expanding the two ends of the workpiece simultaneously.
Preferably, the first clamping device is height adjustable.
Preferably, the first clamping device and the second clamping device are both hydraulically clamped, the second clamping device comprises a sliding bottom plate arranged on the sliding mechanism and a supporting side plate arranged on the sliding bottom plate, and the clamping end in contact with the workpiece can be subjected to height lifting adjustment along a vertical sliding rail of the supporting side plate.
Preferably, the rotation shaft of the left and right rotation power mechanism is aligned with the axis of the central shaft, the rotation shaft is disposed in a rotation shaft sleeve, the rotation shaft sleeve is connected to the second clamping device, and a receiving space for the central shaft to move axially is disposed in the rotation shaft sleeve.
Preferably, the radian clamping device comprises a radian clamping plate and a rotation center supporting mechanism, the rotation center supporting mechanism rotates along the central shaft, the rotation center supporting mechanism is connected with the radian plate stabilizing motor through a movable moving and fixing plate, in the fifth step of the expansion process, a workpiece can cause the radian clamping plate to rotate around the rotation center supporting mechanism and the central shaft in two directions, and in the sixth step, the control center gives a signal to rotate a screw rod of the radian plate stabilizing motor according to a calculation result so as to push the radian clamping device to move axially along the central shaft.
Preferably, the arc clamping plate is inserted into the rotation center supporting mechanism and is inserted into the rotation center supporting mechanism with a gap; and a screw rod of the radian plate stabilizing motor is inserted into the movable moving and fixing plate, and a gap is inserted.
Preferably, a groove for accommodating a workpiece to pass through is formed in the radian clamping plate, and an arc-shaped radian plate is arranged in the groove.
By adopting the technical scheme, the invention has the following beneficial effects: (1) the invention has ingenious structure, can achieve the technical effect of making the radian of the end part of the processed conducting bar consistent, thereby leading the excitation of the generator to be better, and leading the ventilation, the heat dissipation and the current to be qualitatively improved, having high automation degree, being economical and practical and high centralization degree, being capable of replacing a plurality of different moulds and greatly accelerating the processing period;
(2) the invention can adapt to the expanding bending of the large-diameter flat conducting bar, and the flat wire conducting bar is applied to the wind driven generator, so that the flat wire has high utilization rate, low groove fullness rate and better heat dissipation of the flat wire;
(3) the invention solves the technical problem that the prior art needs a plurality of different dies to solve the problem of the expansion of one conducting bar through the structure of a special conducting bar expansion machine and a corresponding special expansion method; the automatic realization can lead the radian of the end part of the conducting bar processed each time to be consistent;
(4) the technical problem that the guide bar is easy to bend and crack due to the large impact force at the moment when the integral mechanism starts to work can be solved through the arrangement of the reverse drawing-in mechanism;
(5) the special structure setting of radian clamping plate, the different angle demands of bending of adaptable different conducting bars can be according to the corresponding angle of automatic bending of adaptability under the traction of the rotation angle of second clamping device moreover, has a buffering effort when making the conducting bar bend, prevents the cracking of bending of conducting bar abruptness.
(6) The invention realizes the consistency of the bending radian shape of the flat conducting bar open-loop coil in batch production by the open-loop type expanding method of the flat conducting bar and the matched integrally-formed expanding equipment, simultaneously reduces the manpower required by construction in the manufacturing process of the flat conducting bar open-loop coil, the time required in the manufacturing process and the like, and can better match the consistency of the shape of each flat conducting bar open-loop coil with different bending radians.
Disclosure of Invention
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a side view of the present invention;
FIG. 5 is a schematic perspective view of the arc clamping plate of the present invention;
fig. 6 is a side view of fig. 5 in accordance with the present invention.
Detailed Description
Example one
Referring to fig. 1 to 6, the open-loop type expanding machine adapted to the flat bar of the present embodiment includes a first clamping device 11 for placing a workpiece, a second clamping device 10, and an arc clamping device 3, the radian clamping device is arranged between the first clamping device and the second clamping device, and also comprises a central shaft 8, a left-right rotating power mechanism 1, a radian plate stabilizing motor 12, a reverse drawing mechanism and a control center 2, the first clamping device, the second clamping device and the radian clamping device are all arranged at the axis position of the central shaft, the second clamping device concentrically rotates around the central shaft under the driving of the left-right rotating power mechanism so as to move inwards, and the second clamping device limits the moving speed of the inner side movement under the reverse tension of the reverse drawing mechanism, and the expanding method of the conducting bar expanding machine comprises the following steps:
step one, adjusting a first clamping device sequence 11 and a second clamping device sequence 10 to the positions of a drawing,
placing the workpiece on the first clamping device, the radian clamping device and the second clamping device, wherein the first clamping device and the first clamping device clamp the workpiece for omnibearing fixation;
step three, starting the automatic program again, the left-right rotating power mechanism 1 drives the second clamping device 10 to rotate concentrically around the central shaft 8, so that the second clamping device moves inwards,
step four, rotating and simultaneously limiting the moving speed of the inner side movement by the reverse pulling-in mechanism,
step five, the radian clamping device rotates around the central shaft under the action of the workpiece,
step six, the rotation angle signals of the second clamping device and the radian clamping device are transmitted to a control center, the control center compares the signals, the control center sends the signals to rotate a screw rod 7 of the radian plate stabilizing motor according to the calculation result so as to push the radian clamping device to move axially along the central shaft,
and step seven, changing the workpiece from a straight line to a 3D structure fox line.
The reverse pulling-in mechanism comprises a reverse pulling-in shaft 9-1, a reverse pulling-in drive and a sliding mechanism 9-2 which enables the second clamping device to move in a guiding mode, the reverse pulling-in drive drives the reverse pulling-in shaft connected with the second clamping device to slide reversely along the sliding mechanism, and the reverse pulling-in driving force of the reverse sliding is smaller than the driving force of the second clamping device rotating around the central shaft. The reverse drawing-in mechanism enables the guide bar to be bent at the moment, the impulse force is smoother, the rigidity requirement of the guide bar is met, the guide bar bending impulse force is smaller, a good protection effect is achieved, and breakage is prevented.
The first clamping device 11, the second clamping device 10, the radian clamping device 3, the central shaft 8, the left and right rotating power mechanism 1, the radian plate stabilizing motor 12 and the reverse pulling-in mechanism are respectively provided with two groups, and are arranged in a mirror image mode about the center of the workpiece, so that the two ends of the workpiece can be expanded simultaneously, and the working efficiency is improved.
The first clamping device can adjust the height to meet the requirements of different heights during conducting bar processing, and the height adjusting structure can adopt conventional settings such as a sliding rail sliding block and a positioning mechanism.
The first clamping device and the second clamping device are both hydraulically clamped, the second clamping device comprises a sliding bottom plate 10-1 arranged on a sliding mechanism and a supporting side plate 10-2 arranged on the sliding bottom plate, the clamping end in contact with a workpiece can be adjusted in height up-down mode along a vertical sliding rail 10-3 of the supporting side plate, and the height adjustment of the second clamping device is used for meeting the requirements of different machining length angles of the guide strip.
The rotating shaft of the left and right rotating power mechanism is consistent with the axis of the central shaft, the rotating shaft is arranged in a rotating shaft sleeve 1-1, the rotating shaft sleeve is connected with the second clamping device, and an accommodating space for the central shaft to move axially is arranged in the rotating shaft sleeve.
The radian clamping device comprises a radian clamping plate 3 and a rotation center supporting mechanism 6, the rotation center supporting mechanism is arranged along the central shaft to perform rotary motion, the rotation center supporting mechanism is connected with a radian plate stabilizing motor through a moving and fixing plate 5, in the fifth step of the expansion process, a workpiece can cause the radian clamping plate to rotate around the rotation center supporting mechanism and the central shaft in two directions, and in the sixth step, a control center gives a signal according to a calculation result to rotate a lead screw of the radian plate stabilizing motor, so that the radian clamping device is pushed to move axially along the central shaft.
The radian clamping plate is inserted into the rotation center supporting mechanism and is inserted into the rotation center supporting mechanism at intervals; the screw rod of the radian plate stabilizing motor is inserted into the movable moving plate, and the screw rod is inserted into the gap, so that the locking state cannot occur, and the expansion radian of the guide strip is natural.
A groove for accommodating a workpiece to pass through is arranged in the radian clamping plate, and an arc-shaped radian plate 3-1 is arranged in the groove.
During specific implementation, the first clamping device sequence 11 and the second clamping device sequence 10 are adjusted to the positions of the drawing, and workpieces are placed on the two stations. Starting a hydraulic device to clamp a workpiece in a first clamping device sequence 11 and a second clamping device sequence 10 and fix the workpiece in all directions, starting an automatic program, driving the second clamping device 10 to concentrically rotate around a central shaft 8 by a left-right rotating power mechanism 1, moving the second clamping device inwards, limiting the moving speed of the inner side by a reverse pulling mechanism while rotating, rotating the radian clamping device around the central shaft under the action of the workpiece, transmitting rotation angle signals of the second clamping device and the radian clamping device to a control center, comparing and calculating the signals by the control center, calculating the approaching distance which cannot be too close, and then enabling a lead screw of a radian plate stabilizing motor to rotate by the control center according to the calculation result so as to push the radian clamping device to axially move along the central shaft and finally keep the workpiece to be changed into a 3D structure arc from a straight line, and the expansion consistency of each conducting bar is ensured every time, and the precision of the radian clamping plate needs to be controlled by a screw rod as the calculation precision reaches 0.01 mm.
In the large-scale wind power generation industry, a large-diameter guide bar is needed, the size of one guide bar which needs to be processed at present is the combination of several guide bars with the former specification, for example, the size of the former guide bar is 2.12 × 7.1mm, and the size of the former guide bar is more than several times, for example, 6 × 25mm, because the automatic guide bar expanding machine needs to be used, and the technical problem of overlarge impulsive force caused at the moment of expanding is solved through the special mechanism.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an open-loop type expanding machine who is adapted to flat conducting bar which characterized in that: including first clamping device (11), second clamping device (10), radian clamping device (3) that are used for placing the work piece, radian clamping device locates between first clamping device and the second clamping device, still include center pin (8), control rotatory power unit (1), radian plate stabilizing motor (12), reverse pulling-in mechanism and control center (2), first clamping device, second clamping device, radian clamping device all locate the axis position of center pin, second clamping device is around the drive of controlling rotatory power unit thereby it moves to the inboard to rotate around the center pin is concentric, and second clamping device restricts the removal velocity that the inboard removed under the reverse pulling force of reverse pulling-in mechanism, the type expanding method of the open-loop type expander that is adapted to flat conducting strip includes following step:
step one, adjusting the first clamping device sequence and the second clamping device sequence to the positions of the drawing,
secondly, placing the workpiece on the first clamping device, the radian clamping device and the second clamping device, clamping the workpiece by the first clamping device and the first clamping device, and fixing the workpiece in all directions,
step three, starting the automatic program again, driving the second clamping device to concentrically rotate around the central shaft by the left-right rotating power mechanism, so that the second clamping device moves inwards,
step four, rotating and simultaneously limiting the moving speed of the inner side movement by the reverse pulling-in mechanism,
step five, the radian clamping device rotates around the central shaft under the action of the workpiece,
step six, the rotation angle signals of the second clamping device and the radian clamping device are transmitted to a control center, the control center compares the signals, the control center sends the signals to rotate a screw rod (7) of the radian plate stabilizing motor according to the calculation result so as to push the radian clamping device to move axially along a central shaft,
and step seven, changing the workpiece from a straight line to a 3D structure fox line.
2. The open-loop expanding machine for flat bars according to claim 1, wherein: the reverse pulling-in mechanism comprises a reverse pulling-in shaft (9-1), a reverse pulling-in drive and a sliding mechanism (9-2) which enables the second clamping device to move in a guiding mode, the reverse pulling-in drive drives the reverse pulling-in shaft connected with the second clamping device to slide reversely along the sliding mechanism, and the reverse pulling-in driving force of the reverse sliding is smaller than the driving force of the second clamping device rotating around the central shaft.
3. The open-loop expanding machine for flat bars according to claim 2, wherein: the first clamping device (11), the second clamping device (10), the radian clamping device (3), the central shaft (8), the left-right rotating power mechanism (1), the radian plate stabilizing motor (12) and the reverse pulling-in mechanism are respectively provided with two groups, are arranged in a mirror image mode relative to the center of the workpiece and are used for expanding the two ends of the workpiece simultaneously.
4. The open-loop expanding machine for flat bars according to claim 1, wherein: the first clamping device is height-adjustable.
5. The open-loop expanding machine for flat bars according to claim 2, wherein: the first clamping device and the second clamping device are both hydraulically clamped, the second clamping device comprises a sliding bottom plate (10-1) arranged on a sliding mechanism and a supporting side plate (10-2) arranged on the sliding bottom plate, and the clamping end in contact with a workpiece can be adjusted in height up-down mode along a vertical sliding rail (10-3) of the supporting side plate.
6. The open-loop expanding machine for flat bars according to claim 1, wherein: the rotating shaft of the left and right rotating power mechanism is consistent with the axis of the central shaft, the rotating shaft is arranged in a rotating shaft sleeve (1-1), the rotating shaft sleeve is connected with the second clamping device, and an accommodating space for the central shaft to move axially is arranged in the rotating shaft sleeve.
7. The open-loop type expanding machine for the flat conducting bars according to any one of claims 1 to 6, wherein: radian clamping device includes radian clamping plate (3) and rotation center supporting mechanism (6), rotation center supporting mechanism follows center pin rotary motion, just rotation center supporting mechanism moves board (5) and is connected with radian plate stabilizing motor through removing, and in type process step five that rises, the work piece can lead to the radian clamping plate to rotate around two directions of rotation center supporting mechanism and center pin, and in step six, control center gives the lead screw that the signal made radian plate stabilizing motor again according to the calculated result and rotates to promote radian clamping device along center pin axial displacement.
8. The open-loop expanding machine for flat conducting bars of claim 7, wherein: the radian clamping plate is inserted into the rotation center supporting mechanism and is inserted into the rotation center supporting mechanism in a clearance manner; and a screw rod of the radian plate stabilizing motor is inserted into the movable moving and fixing plate, and a gap is inserted.
9. The open-loop expanding machine for flat bars according to claim 8, wherein: a groove for accommodating a workpiece to pass through is formed in the radian clamping plate, and an arc-shaped radian plate (3-1) is arranged in the groove.
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| CN202111629222.6A CN114453467B (en) | 2021-12-28 | 2021-12-28 | Open-loop type expanding machine suitable for flat conducting bars |
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| CN202111629222.6A CN114453467B (en) | 2021-12-28 | 2021-12-28 | Open-loop type expanding machine suitable for flat conducting bars |
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