CN114453467B - Open-loop type expanding machine suitable for flat conducting bars - Google Patents
Open-loop type expanding machine suitable for flat conducting bars Download PDFInfo
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- CN114453467B CN114453467B CN202111629222.6A CN202111629222A CN114453467B CN 114453467 B CN114453467 B CN 114453467B CN 202111629222 A CN202111629222 A CN 202111629222A CN 114453467 B CN114453467 B CN 114453467B
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- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 15
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010923 batch production 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
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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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
Abstract
The invention discloses an open-loop type expanding machine suitable for a flat conducting bar, which comprises a first clamping device, a second clamping device and an arc clamping device, wherein the first clamping device, the second clamping device and the arc clamping device are used for placing a workpiece, the arc 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 rotation power mechanism, an arc plate stabilizing motor, a reverse pulling mechanism and a control center, the first clamping device, the second clamping device and the arc clamping device are all arranged at the axis position of the central shaft, the second clamping device is driven by the left-right rotation power mechanism to concentrically rotate around the central shaft so as to move inwards, and the second clamping device limits the moving speed of the inner side movement under the reverse pulling force of the reverse pulling mechanism. The invention solves the problem of consistent radian of the end part of the guide bar, has high degree of automation, is economical and practical, can replace different dies, and greatly accelerates the processing period.
Description
Technical Field
The invention relates to the field of new energy generator conducting bar expanding equipment, in particular to an open-loop expanding machine suitable for a flat conducting bar.
Background
At present, the new energy wind power industry generally adopts direct drive and double feed aiming at a large-scale wind power generation motor, and the double feed can save a large amount of raw materials, so the new energy aspect is expected to develop in the double feed aspect, the raw materials can be saved,
the former guide bars are round, have small diameters and are knocked out by using a die, and are manually bent, so that the difference of radian of the end parts of the guide bars is large, the utilization rate of round wires is low, the slot filling rate is high, the heat dissipation is poor, the current guide bars are not much in wind power generation, the former expanding machine is used for bending the closed guide bars, and each coil with different brands and different types (the size and the required arc shape) needs to be provided with a set of die, so that the process is complicated and the occupied space is large;
the technical defect of the bending of the closed guide bar of the former expanding machine is that the expansion radian of the guide bar is formed by matching a model radian die core and a bending fixing clamping piece, the guide bar, the radian die core and the fixing clamping piece sometimes need to be adjusted for multiple times in the bending process, the wire is tested, the die is difficult to disassemble and replace, the whole process is mainly formed by manually knocking and shaping, the difference of the radian of the end part of the guide bar is large, the fit degree of the wire grooves of the inner coil and the outer coil after wire embedding is low, and the stability is poor. Meanwhile, batch errors are likely to occur to the bending precision of the guide bar, and an automatic bending device and control are absent.
Disclosure of Invention
The invention aims to provide an open-loop type expanding machine suitable for a flat conducting bar. The problem that the radian of the end part of the guide bar is consistent is solved, the degree of automation is high, the guide bar is economical and practical, different dies can be replaced, and the processing period is greatly shortened.
The technical scheme for realizing the aim of the invention is as follows: the utility model provides a be adapted to open-loop type machine that rises of flat conducting bar, includes first clamping device, second clamping device, radian clamping device that is used for placing the work piece, radian clamping device locates between first clamping device and the second clamping device, still include center pin, left and right rotation power mechanism, radian plate stabilization motor, reverse drawing mechanism and control center, first clamping device, second clamping device, radian clamping device all locate the axis position of center pin, the second clamping device around thereby the concentric rotation of center pin moves inwards under the drive of left and right rotation power mechanism, just the second clamping device restricts the internal side movement's of movement speed under the reverse pulling force of reverse drawing mechanism, the type method that rises of open-loop type machine that is adapted to flat conducting bar includes the following steps:
step one, adjusting a first clamping device and a second clamping device to the position of a drawing,
secondly, placing the workpiece on a first clamping device, a radian clamping device and a second clamping device, wherein the first clamping device and the first clamping device clamp the workpiece and fix the workpiece in all directions;
step three, restarting an automatic program, driving the second clamping device to concentrically rotate around the central shaft 8 by the left-right rotation power mechanism so as to enable the second clamping device to move inwards,
step four, the reverse pulling-in mechanism limits the moving speed of the inner side moving during rotation,
fifthly, 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 and calculates the signals, and the control center gives the signals to rotate a screw rod of the radian plate stabilizing motor according to the calculation result, so that the radian clamping device is pushed to axially move along a central shaft,
and step seven, changing the workpiece into a 3D structure fox line from a straight line.
Preferably, the reverse pulling-in mechanism comprises a reverse pulling-in shaft and a reverse pulling-in drive, and further comprises a sliding mechanism for guiding the second clamping device to move, wherein 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.
Preferably, the first clamping device, the second clamping device, the radian clamping device, the central shaft, the left-right rotating power mechanism, the radian plate stabilizing motor and the reverse pulling mechanism are all provided with two groups, are arranged in a mirror image mode relative to the center of the workpiece, and are used for simultaneously expanding at two ends of the workpiece.
Preferably, the first clamping means is height-adjustable.
Preferably, the first clamping device and the second clamping device are 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 contacted with the workpiece can be adjusted in a height lifting manner along a vertical sliding rail of the supporting side plate.
Preferably, the rotation shaft of the left-right rotation power mechanism is identical to the axis of the central shaft, the rotation shaft is disposed in a rotation shaft sleeve, the rotation shaft sleeve is connected with the second clamping device, and an accommodating space for axially moving the central shaft is disposed in the rotation shaft sleeve.
Preferably, the arc clamping device comprises an arc 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 arc plate stabilizing motor through moving the moving plate, in the fifth step of the expanding process, the workpiece can cause the arc clamping plate to rotate around the rotation center supporting mechanism and the two directions of the central shaft, in the sixth step, the control center gives a signal to enable a screw rod of the arc plate stabilizing motor to rotate according to a calculation result, and therefore the arc clamping device is pushed to axially move along the central shaft.
Preferably, the arc clamping plate is inserted into the rotation center supporting mechanism, and a gap is inserted; the screw rod of the radian plate stabilizing motor is inserted into the movable moving plate, and the gap is inserted.
Preferably, a groove for accommodating the 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 consistent radian of the end part of the processed conducting bar, thereby leading the excitation of the generator to be better, ventilation, heat dissipation and current to be improved, having high degree of automation, being economical and practical and high degree of centralization, being capable of replacing a plurality of different moulds and greatly accelerating the processing period;
(2) The invention can adapt to the expansion bending of the large-diameter flat conducting bar, and applies the flat wire conducting bar to the wind driven generator, and has high flat wire utilization rate, low slot filling rate and better heat dissipation of the flat wire;
(3) According to the invention, through a special guide bar expansion machine structure and a corresponding special expansion method, the technical problem that a plurality of different dies are needed to solve the expansion of one guide bar in the prior art is solved; the automatic realization can make the radian of the end part of the guide bar processed each time consistent;
(4) The technical problem that the guide bar is easy to bend and crack due to the large impact force of the whole mechanism at the beginning working moment can be solved by arranging the reverse pull-in mechanism;
(5) The special structure of radian clamping plate sets up, adaptable different angle demands of bending of different conducting bars, and the corresponding angle of bending of adaptation's automation under the traction of the rotation angle of second clamping device in addition can be according to, has a buffering effort when making the conducting bar bend, prevents the fracture of bending of conducting bar abruptness.
(6) The invention realizes the consistency of bending radian shapes of the flat conducting bar open-loop coils in batch production through the open-loop type expanding method of the flat conducting bars and the matched integrally formed expanding equipment, reduces the manpower required by construction in the manufacturing process of the flat conducting bar open-loop coils, reduces the time required by the manufacturing process and the like, can better match the consistency of the shapes of the flat conducting bar open-loop coils with different bending radians, realizes the integral forming of the end radians of the flat conducting bars in the bending process through the accurate algorithm and the expanding method of the equipment, has high consistency and automation in the whole process, and simultaneously, can be suitable for radians of different product models, saves the cost, saves the time for disassembling and replacing cores, and is more suitable for the development requirements of mass production.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which
FIG. 1 is a schematic diagram of the structure 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 1
Referring to fig. 1 to 6, the open-loop expanding machine adapted to a flat conducting bar of this embodiment includes a first clamping device 11, a second clamping device 10, and an arc clamping device for placing a workpiece, where the arc clamping device is disposed between the first clamping device and the second clamping device, and further includes a central shaft 8, a left-right rotation power mechanism 1, an arc plate stabilizing motor 12, a reverse pulling mechanism, and a control center 2, where the first clamping device, the second clamping device, and the arc clamping device are all disposed at an axis position of the central shaft, and the second clamping device is driven by the left-right rotation power mechanism to concentrically rotate around the central shaft so as to move inwards, and the second clamping device limits a moving speed of moving inwards under a reverse pulling force of the reverse pulling mechanism, and the expanding method of the conducting bar expanding machine includes the following steps:
step one, the first clamping device 11 and the second clamping device 10 are adjusted to the drawing position,
secondly, placing the workpiece on a first clamping device, a radian clamping device and a second clamping device, wherein the first clamping device and the first clamping device clamp the workpiece and fix the workpiece in all directions;
step three, restarting an automatic program, driving the second clamping device 10 to concentrically rotate around the central shaft 8 by the left and right rotary power mechanism 1, so that the second clamping device moves inwards,
step four, the reverse pulling-in mechanism limits the moving speed of the inner side moving during rotation,
fifthly, 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 and calculates the signals, and the control center gives the signals again according to the calculation result to enable the screw rod 7 of the radian plate stabilizing motor to rotate, so that the radian clamping device is pushed to axially move along the central shaft,
and step seven, changing the workpiece into a 3D structure fox line from a straight line.
The reverse pulling-in mechanism comprises a reverse pulling-in shaft 9-1 and a reverse pulling-in drive, and further comprises a sliding mechanism 9-2 which enables the second clamping device to move in a guiding way, 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 pulling mechanism is arranged to enable the impulse force of the conducting bar at the moment of bending to be smoother, the requirement on rigidity of the conducting bar is met, the impulse force of bending the conducting bar 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, the central shaft 8, the left-right rotary power mechanism 1, the radian plate stabilizing motor 12 and the reverse pulling mechanism are all provided with two groups, are arranged in a mirror image mode relative to the center of the workpiece, are used for simultaneously expanding at two ends of the workpiece, and improve working efficiency.
The first clamping device can be arranged in height to adapt to different height requirements during conducting bar processing, and the height adjusting structure can be arranged conventionally by adopting a sliding rail sliding block, a positioning mechanism and the like.
The first clamping device and the second clamping device are hydraulically clamped, the second clamping device comprises a sliding bottom plate 10-1 arranged on the sliding mechanism and a supporting side plate 10-2 arranged on the sliding bottom plate, the clamping end contacted with a workpiece can be adjusted in a height lifting manner along a vertical sliding rail 10-3 of the supporting side plate, and the height of the second clamping device is adjusted to meet the requirements of different processing length angles of the guide bars.
The rotary shaft of the left-right rotary power mechanism is consistent with the axis of the central shaft, the rotary shaft is arranged in a rotary shaft sleeve 1-1, the rotary shaft sleeve is connected with the second clamping device, and an accommodating space for the central shaft to axially move is arranged in the rotary shaft sleeve.
The radian clamping device comprises a radian clamping plate 3 and a rotating center supporting mechanism 6, the rotating center supporting mechanism rotates along the central shaft, the rotating center supporting mechanism is connected with a radian plate stabilizing motor by moving a moving plate 5, in a fifth step of the expanding process, a workpiece can cause the radian clamping plate to rotate around the rotating center supporting mechanism and the two directions of the central shaft, in a sixth step, a control center gives a signal to enable a screw rod of the radian plate stabilizing motor to rotate according to a calculation result, and therefore the radian clamping device is pushed to axially move along the central shaft.
The radian clamping plate is inserted into the rotation center supporting mechanism, and the radian clamping plate is inserted into the rotation center supporting mechanism in a clearance mode; the lead screw of the radian plate stabilizing motor is inserted into the movable fixing plate, and the lead screw is inserted into the gap, so that a locking state cannot occur, and the expansion radian of the guide bar is natural.
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.
In practice, the first clamping device 11 and the second clamping device 10 are adjusted to the drawing positions, and the workpiece is placed on the two stations. At this time, a hydraulic device is started to clamp a workpiece in a first clamping device 11 and a second clamping device 10, the workpiece is fixed in an omnibearing manner, an automatic program is started again, a left-right rotary power mechanism 1 drives the second clamping device 10 to concentrically rotate around a central shaft 8, the second clamping device moves inwards, a rotating and reverse pulling mechanism limits the moving speed of the inner side movement, the radian clamping device rotates around the central shaft under the action of the workpiece, a rotating angle signal of the second clamping device and the radian clamping device is transmitted to a control center, the control center compares and calculates the signals, the approaching distance cannot be close, the control center gives a signal according to the calculation result to enable a screw rod of a radian plate stabilizing motor to rotate, so that the radian clamping device is pushed to axially move along the central shaft, finally, the workpiece is kept to be changed into a 3D structural arc line from a straight line, and the expansion consistency of each guide bar is ensured every time.
In the large-scale wind power generation industry, large-diameter conducting bars are needed, the size of one conducting bar to be processed at present is the combination of several conducting bars with the previous specification, for example, the size of the previous conducting bar is 2.12 x 7.1mm, and the size of the previous conducting bar is more than several times, for example, 6 x 25mm, because the automatic conducting bar expanding machine is needed, and the technical problem of overlarge impact force caused by the moment of starting expanding is solved through the special mechanism.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (8)
1. An open-loop type machine that rises that is adapted to flat conducting bar which characterized in that: the method comprises the steps that a first clamping device (11), a second clamping device (10) and an arc clamping device are used for placing a workpiece, the arc clamping device is arranged between the first clamping device and the second clamping device, the method further comprises a central shaft (8), a left-right rotation power mechanism (1), an arc plate stabilizing motor (12), a reverse pulling mechanism and a control center (2), the first clamping device, the second clamping device and the arc clamping device are all arranged at the axis position of the central shaft, the second clamping device is driven by the left-right rotation power mechanism to concentrically rotate around the central shaft to move inwards, the second clamping device limits the moving speed of the inner side movement under the reverse pulling force of the reverse pulling mechanism, and the expanding method of the open-loop expanding machine suitable for the flat conducting bar comprises the following steps:
step one, adjusting a first clamping device and a second clamping device to the position of a drawing,
step two, placing the workpiece on a first clamping device, an arc clamping device and a second clamping device, clamping the workpiece by the first clamping device and the first clamping device for omnibearing fixation,
step three, restarting an automatic program, driving the second clamping device to concentrically rotate around the central shaft by the left-right rotation power mechanism so as to enable the second clamping device to move inwards,
step four, the reverse pulling-in mechanism limits the moving speed of the inner side moving during rotation,
fifthly, 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 and calculates the signals, and the control center gives the signals again according to the calculation result to enable a screw rod (7) of the radian plate stabilizing motor to rotate, so that the radian clamping device is pushed to axially move along a central shaft,
step seven, changing the workpiece into a 3D structure fox line from a straight line;
the reverse pulling-in mechanism comprises a reverse pulling-in shaft (9-1) and a reverse pulling-in drive, and further comprises a sliding mechanism (9-2) for guiding the second clamping device to move, wherein 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.
2. The open loop expander adapted to a flat bar of claim 1, wherein: the device is characterized in that the first clamping device (11), the second clamping device (10), the radian clamping device, the central shaft (8), the left-right rotary 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 simultaneously expanding at two ends of the workpiece.
3. The open loop expander adapted to a flat bar of claim 1, wherein: the first clamping device is adjustable in height.
4. The open loop expander adapted to a flat bar of claim 1, wherein: the first clamping device and the second clamping device are hydraulically clamped, the second clamping device comprises a sliding bottom plate (10-1) arranged on the sliding mechanism and a supporting side plate (10-2) arranged on the sliding bottom plate, and the clamping end contacted with a workpiece can be adjusted in a height lifting manner along a vertical sliding rail (10-3) of the supporting side plate.
5. The open loop expander adapted to a flat bar of claim 1, wherein: the rotary shaft of the left-right rotary power mechanism is consistent with the axis of the central shaft, the rotary shaft is arranged in a rotary shaft sleeve (1-1), the rotary shaft sleeve is connected with the second clamping device, and an accommodating space for the central shaft to axially move is arranged in the rotary shaft sleeve.
6. The open loop expander adapted to a flat bar according to any one of claims 1-5, wherein: the radian clamping device comprises a radian clamping plate (3) and a rotating center supporting mechanism (6), the rotating center supporting mechanism rotates along the central shaft, the rotating center supporting mechanism is connected with a radian plate stabilizing motor by moving a moving plate (5), in a fifth step of the expanding process, a workpiece can cause the radian clamping plate to rotate around the rotating center supporting mechanism and the two directions of the central shaft, in a sixth step, a control center gives a signal to rotate a screw rod of the radian plate stabilizing motor according to a calculation result, and therefore the radian clamping device is pushed to axially move along the central shaft.
7. The open loop expander adapted to a flat bar of claim 6, wherein: the radian clamping plate is inserted into the rotation center supporting mechanism, and the radian clamping plate is inserted into the rotation center supporting mechanism in a clearance mode; the screw rod of the radian plate stabilizing motor is inserted into the movable moving plate, and the gap is inserted.
8. The open loop expander adapted to flat bars of claim 7, 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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| CN114453467B true CN114453467B (en) | 2024-01-02 |
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