CN110595912A - Enameled wire narrow-edge bending test device and enameled wire narrow-edge bending test method - Google Patents
Enameled wire narrow-edge bending test device and enameled wire narrow-edge bending test method Download PDFInfo
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- CN110595912A CN110595912A CN201910875295.XA CN201910875295A CN110595912A CN 110595912 A CN110595912 A CN 110595912A CN 201910875295 A CN201910875295 A CN 201910875295A CN 110595912 A CN110595912 A CN 110595912A
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- 238000005452 bending Methods 0.000 title claims abstract description 63
- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 22
- 239000004020 conductor Substances 0.000 claims description 12
- 210000003298 dental enamel Anatomy 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides an enameled wire narrow side bending test device and an enameled wire narrow side bending test method, wherein the enameled wire narrow side bending test device is used for bending an enameled wire along a narrow side, the enameled wire comprises an active section, a section to be rotated and a section to be bent, the active section and the section to be bent are connected, the enameled wire narrow side bending test device comprises a base, a first accommodating groove, a first fixed shaft, a first rotating part and a second accommodating groove, the first accommodating groove is formed in the base and used for being tightly attached to the wide side of the active section and abutting against the narrow side of the active section, the first fixed shaft is fixedly arranged on the base in a penetrating mode, the first rotating part is rotatably sleeved on the first fixed shaft and used for rotating around the first fixed shaft, the second accommodating groove is formed in the first rotating part and used for being tightly attached to the wide side of, when the first rotating member rotates around the first fixed shaft, the section to be rotated is driven to rotate around the first fixed shaft, and the section to be bent is bent around the first fixed shaft.
Description
Technical Field
The invention relates to the technical field of electromagnetic wire testing, in particular to an enameled wire narrow edge bending test device. In addition, the invention also relates to an enameled wire narrow-side bending test method adopting the enameled wire narrow-side bending test device.
Background
At present, enameled wires of a driving motor of a new energy automobile are directly formed into a hairpin type (U-shaped) wire bar, the enameled wires are deformed by three-dimensional mechanical impact in the forming process, the bending radius is very small, and the requirements on the flexibility and the bending performance of an insulating layer (paint film) of the enameled wires are very high.
Because the insulating layer of the enameled wire is thin, the requirement on mechanical strength is high, and the bending radius is small. In order to meet the use requirements, a test device and a test method close to the actual conditions are needed to judge and evaluate the mechanical properties of the insulating layer of the enameled wire.
Disclosure of Invention
The invention provides an enameled wire narrow-side bending test device and an enameled wire narrow-side bending test method, which aim to solve the problem that the mechanical performance of an insulating layer of an enameled wire cannot be judged and evaluated.
The technical scheme adopted by the invention is as follows:
the invention provides an enameled wire narrow side bending test device which is used for bending an enameled wire along a narrow side, wherein the enameled wire comprises a movable section, a section to be rotated and a section to be bent, wherein the section to be bent is connected with the movable section and the section to be rotated, the enameled wire narrow side bending test device comprises a base, a first accommodating groove, a first fixing shaft, a first rotating member and a second accommodating groove, the first accommodating groove is formed in the base and used for clinging to the wide side of the movable section and propping against the narrow side of the movable section, the first fixing shaft is fixedly arranged on the base in a penetrating mode, the first rotating member is rotatably sleeved on the first fixing shaft and used for rotating around the first fixing shaft, the second accommodating groove is formed in the first rotating member and used for clinging to the wide side of the section to be rotated and propping against the narrow side and the end face of the section to be rotated, and the first accommodating groove is used for driving the section.
Further, the base includes the bottom plate, set up riser on the bottom plate and with the riser relative interval lay and be used for with the riser cooperation in order to hug closely the first clamp plate on the broadside of activity section, be equipped with the first layer board that is used for the top to support the narrow limit of activity section between riser and the first clamp plate, riser, first clamp plate and first layer board enclose to close and form first holding tank.
Furthermore, a third accommodating groove is formed in the first rotating part and comprises a first groove wall used for abutting against the end face of the section to be rotated, a second groove wall connected with the first groove wall and a third groove wall connected with the first groove wall and arranged at an interval relative to the second groove wall, a second pressing plate used for being matched with the second groove wall to tightly attach to the wide edge of the section to be rotated is arranged in the third accommodating groove, a second supporting plate used for abutting against the narrow edge of the section to be rotated is arranged between the second groove wall and the second pressing plate, and the first groove wall, the second pressing plate and the second supporting plate are enclosed to form the second accommodating groove.
Furthermore, at least two first bolts used for penetrating through the vertical plate are arranged on the first supporting plate, first nuts used for being screwed with the first bolts to fix the first supporting plate on the vertical plate are arranged on one side, away from the first pressing plate, of the vertical plate, at least two second bolts used for penetrating through the second groove wall are arranged on the second supporting plate, and second nuts used for being screwed with the second bolts to fix the second supporting plate on the second groove wall are arranged on one side, away from the second pressing plate, of the second groove wall.
Furthermore, a first through groove for the first bolt to pass through is formed in the vertical plate in the vertical direction, and a second through groove for the second bolt to pass through is formed in the second groove wall in the vertical direction, so that the positions of the first supporting plate and the second supporting plate can be adjusted in the vertical direction to bend the enameled wires with different broadside sizes.
Furthermore, be equipped with first location axle along the horizontal direction on the riser, first clamp plate movable sleeve is established on first location axle, be equipped with second location axle along vertical direction on the bottom plate, the epaxial cover that rotates of second location is equipped with and is used for rotating around the second location axle and promotes the second rotation piece that first clamp plate removed along first location axle, be equipped with on the third cell wall to be used for screwing up and promoting the screw rod that the second clamp plate removed along the horizontal direction with the third cell wall to the position of adjusting first clamp plate and second clamp plate along the horizontal direction is with the enameled wire of crooked different narrow limit sizes.
Furthermore, a first shaft lug and a second shaft lug which is arranged opposite to the first shaft lug at intervals are arranged on the first rotating piece, a first shaft sleeve is fixedly arranged on the vertical plate in a penetrating mode, the first shaft lug is rotatably sleeved on the first shaft sleeve in a penetrating mode, a second shaft sleeve is fixedly arranged on the second shaft lug in a penetrating mode, and the first pressing plate is movably sleeved on the second shaft sleeve; the first fixed shaft comprises a shaft body fixedly arranged in the first shaft sleeve in a penetrating mode and a shaft rod which is connected with the shaft body and used for enabling the section to be bent to be formed in a surrounding bending mode; a second fixed shaft is fixedly arranged in the second shaft sleeve in a penetrating way, and the shaft lever extends into the second fixed shaft.
Furthermore, a spring which is sleeved on the first positioning shaft and used for enabling the first pressure plate to automatically reset when the second rotating part loosens the first pressure plate is arranged between the vertical plate and the first pressure plate.
Furthermore, one end of the first rotating part, which is close to the first fixed shaft, is provided with a limiting part, and the vertical plate is provided with a limiting groove which is used for being matched with the limiting part so as to limit the first rotating part when the first rotating part rotates around the first fixed shaft to a horizontal opening state.
The invention also provides an enameled wire narrow side bending test method, which adopts the enameled wire narrow side bending test device and comprises the following steps: a. cutting a section of enameled wire; b. rotating the first rotating member around the first fixed shaft to a horizontal open state; c. putting the section to be rotated of the enameled wire into a second accommodating groove, enabling the groove wall of the second accommodating groove to be tightly attached to the wide edge of the section to be rotated and abut against the end surface of the section to be rotated, and enabling the groove bottom of the second accommodating groove to abut against the narrow edge of the section to be rotated; d. placing the movable section of the enameled wire into the first accommodating groove, enabling the groove wall of the first accommodating groove to be tightly attached to the wide edge of the movable section, and enabling the groove bottom of the first accommodating groove to abut against the narrow edge of the movable section; e. rotating the first rotating member around the first fixed shaft to a horizontal closed state, so that the section to be bent of the enameled wire is bent around the first fixed shaft; f. and taking out the enameled wire, observing whether the insulating layer of the section to be bent is separated from the conductor, and observing whether the insulating layer of the section to be bent is cracked and the conductor is exposed.
The invention has the following beneficial effects:
the enameled wire narrow edge bending test device is used for bending an enameled wire along a narrow edge and comprises a base, a first accommodating groove, a first fixed shaft, a first rotating part and a second accommodating groove. The enameled wire comprises a movable section, a section to be rotated and a section to be bent. When the narrow-side bending test of the enameled wire is carried out, a section of enameled wire is firstly cut. And then the first rotating piece rotates around the first fixed shaft to a horizontal opening state. And then, the section to be rotated is placed into the second accommodating groove, so that the groove wall of the second accommodating groove is tightly attached to the wide edge of the section to be rotated and abuts against the end surface of the section to be rotated, and the groove bottom of the second accommodating groove abuts against the narrow edge of the section to be rotated. Then the movable section is placed into the first accommodating groove, the groove wall of the first accommodating groove is tightly attached to the wide edge of the movable section, and the groove bottom of the first accommodating groove abuts against the narrow edge of the movable section. And finally, rotating the first rotating piece around the first fixed shaft to a horizontal closing state. Because the first holding tank top supports the narrow limit of active segment and the second holding tank top supports the narrow limit and the terminal surface of waiting to rotate the section, first commentaries on classics piece can drive and wait to rotate the section and rotate around first fixed axle, makes and waits that the bending section encircles first fixed axle bending type to make the enameled wire bend along the narrow limit, bend angle is 180. Because the broadside of activity section is hugged closely to first holding tank and the broadside of waiting to rotate the section is hugged closely to the second holding tank, can carry out the side direction spacing to the enameled wire, take place incline and warpage when avoiding the enameled wire to buckle. By taking out the enameled wire, observing whether the insulating layer of the section to be bent is separated from the conductor or not, and observing whether the insulating layer of the section to be bent is cracked and the conductor is exposed or not, the mechanical property of the insulating layer of the enameled wire can be judged and evaluated. Because the bending radius of the enameled wire is equal to the radius of the first fixed shaft, the enameled wire can be bent along the narrow edge at a small multiplying power by selecting the first fixed shaft with a small radius. The narrow-side bending test device for the enameled wire is convenient to operate, and can truly reflect the condition of the mechanical performance of the insulating layer after the enameled wire is bent at a small multiplying power.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a bent enamel wire according to a preferred embodiment of the present invention;
fig. 2 is a schematic view of a narrow-side bending test apparatus for an enamel wire according to a preferred embodiment of the present invention in a horizontally opened state;
fig. 3 is a schematic view of a narrow-side bending test device for an enamel wire according to a preferred embodiment of the present invention in a horizontally closed state;
fig. 4 is a schematic structural view of an enameled wire narrow-side bending test device according to a preferred embodiment of the invention;
FIG. 5 is a schematic view of a first rotating member of the preferred embodiment of the present invention;
FIG. 6 is a schematic view of a base of a preferred embodiment of the present invention;
FIG. 7 is a schematic view of the first pressing plate movably sleeved on the second shaft sleeve according to the preferred embodiment of the present invention;
FIG. 8 is a schematic view of a first stationary shaft of a preferred embodiment of the present invention;
fig. 9 is a schematic view of a second stationary shaft in accordance with a preferred embodiment of the present invention.
Description of reference numerals:
1. enamelled wires; 11. an active segment; 12. a section to be rotated; 13. a section to be bent; 2. a base; 21. a base plate; 22. a vertical plate; 23. a first platen; 24. a first pallet; 25. a first bolt; 26. a first nut; 27. a first through groove; 28. a first positioning shaft; 29. a second positioning shaft; 210. a second rotating member; 211. a first bushing; 212. a spring; 213. a limiting groove; 3. a first accommodating groove; 4. a first fixed shaft; 41. a shaft body; 42. a shaft lever; 5. a first rotating member; 51. a second platen; 52. a second bolt; 53. a second nut; 54. a second through groove; 55. a screw; 56. a first shaft lug; 57. a second shaft lug; 58. a second shaft sleeve; 59. a second fixed shaft; 510. a limiting member; 6. a second accommodating groove; 71. a first slot wall; 72. a second slot wall; 73. a third slot wall.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic view of a bent enamel wire according to a preferred embodiment of the present invention; fig. 2 is a schematic view of a narrow-side bending test apparatus for an enamel wire according to a preferred embodiment of the present invention in a horizontally opened state; fig. 3 is a schematic view of a narrow-side bending test device for an enamel wire according to a preferred embodiment of the present invention in a horizontally closed state; fig. 4 is a schematic structural view of an enameled wire narrow-side bending test device according to a preferred embodiment of the invention; FIG. 5 is a schematic view of a first rotating member of the preferred embodiment of the present invention; FIG. 6 is a schematic view of a base of a preferred embodiment of the present invention; FIG. 7 is a schematic view of the first pressing plate movably sleeved on the second shaft sleeve according to the preferred embodiment of the present invention; FIG. 8 is a schematic view of a first stationary shaft of a preferred embodiment of the present invention; fig. 9 is a schematic view of a second stationary shaft in accordance with a preferred embodiment of the present invention.
As shown in fig. 1, 2 and 3, the device for testing bending of a narrow side of an enameled wire in this embodiment is used for bending the enameled wire 1 along the narrow side, the enameled wire 1 includes a movable section 11, a section to be rotated 12 and a section to be bent 13 connecting the movable section 11 and the section to be rotated 12, the device for testing bending of a narrow side of an enameled wire includes a base 2, a first receiving groove 3 disposed on the base 2 and adapted to be closely attached to a wide side of the movable section 11 and abut against the narrow side of the movable section 11, a first fixing shaft 4 fixedly disposed on the base 2, a first rotating member 5 rotatably disposed on the first fixing shaft 4 and adapted to rotate around the first fixing shaft 4, and a second receiving groove 6 disposed on the first rotating member 5 and adapted to be closely attached to a wide side of the section to be rotated 12 and abut against the narrow side and an end face of the section to be, when the first rotating member 5 rotates around the first fixing shaft 4, the section to be rotated 12 is driven to rotate around the first fixing shaft 4, and the section to be bent 13 is bent around the first fixing shaft 4.
The enameled wire narrow edge bending test device is used for bending an enameled wire 1 along a narrow edge, and comprises a base 2, a first accommodating groove 3, a first fixing shaft 4, a first rotating part 5 and a second accommodating groove 6. The enameled wire 1 comprises a movable section 11, a section 12 to be rotated and a section 13 to be bent. When the narrow-side bending test of the enameled wire is carried out, a section of the enameled wire 1 is firstly cut out. The first rotating member 5 is then rotated about the first fixed shaft 4 to a horizontally opened state. And then, the section 12 to be rotated is placed into the second accommodating groove 6, so that the groove wall of the second accommodating groove 6 is tightly attached to the wide edge of the section 12 to be rotated and abuts against the end surface of the section 12 to be rotated, and the groove bottom of the second accommodating groove 6 abuts against the narrow edge of the section 12 to be rotated. Then, the movable section 11 is placed into the first accommodating groove 3, so that the groove wall of the first accommodating groove 3 is tightly attached to the wide edge of the movable section 11, and the groove bottom of the first accommodating groove 3 abuts against the narrow edge of the movable section 11. Finally, the first rotating member 5 is rotated around the first fixed shaft 4 to a horizontal closed state. Because the first holding tank 3 pushes against the narrow side of the movable section 11 and the second holding tank 6 pushes against the narrow side and the end face of the section 12 to be rotated, the first rotating part 5 can drive the section 12 to be rotated to rotate around the first fixing shaft 4, so that the section 13 to be bent surrounds the first fixing shaft 4 to be bent, and the enameled wire 1 is bent along the narrow side, and the bending angle is 180 degrees. Because the broadside of activity section 11 is hugged closely to first holding tank 3 and the broadside of waiting to rotate section 12 is hugged closely to second holding tank 6, can carry out the side direction spacing to enameled wire 1, take place incline and warpage when avoiding enameled wire 1 to buckle. By taking out the enameled wire 1, observing whether the insulating layer of the section to be bent 13 is separated from the conductor, and observing whether the insulating layer of the section to be bent 13 is cracked and the conductor is exposed, the mechanical performance of the insulating layer of the enameled wire 1 can be judged and evaluated. Because the bending radius of the enameled wire 1 is equal to the radius of the first fixed shaft 4, the enameled wire 1 can be bent along the narrow edge with a small multiplying power by selecting the first fixed shaft 4 with a small radius. The narrow-side bending test device for the enameled wire is convenient to operate, and can truly reflect the condition of the mechanical performance of the insulating layer after the enameled wire 1 is bent by a small multiplying power. Optionally, the cut length of the enamel wire 1 is about 200 mm. Optionally, the radius of the first fixing shaft 4 is selected according to the broadside size of the enameled wire 1, and the radius of the first fixing shaft 4 is selected to be 0.25-1 times of the broadside size of the enameled wire 1. Preferably, the radius of the first stationary shaft 4 is selected to be 2.0mm, 2.8mm, 3.0mm, 3.5mm, 4.0mm, 6.0mm or 8.0 mm. Alternatively, the insulation layer of the enamel wire 1 is evaluated as requiring that the insulation layer cannot be separated from the conductor, and the insulation layer cannot be cracked and expose the conductor.
As shown in fig. 4, in this embodiment, the base 2 includes a bottom plate 21, a vertical plate 22 disposed on the bottom plate 21, and a first pressing plate 23 disposed at an interval opposite to the vertical plate 22 and used for being matched with the vertical plate 22 to closely attach to the wide edge of the movable section 11, a first supporting plate 24 for supporting the narrow edge of the movable section 11 is disposed between the vertical plate 22 and the first pressing plate 23, and the vertical plate 22, the first pressing plate 23, and the first supporting plate 24 enclose to form the first receiving groove 3. The bottom plate 21 may form a bottom support. The vertical plate 22 is matched with the first pressing plate 23, and can be respectively clung to the wide edge of the movable section 11 from two sides. The first support plate 24 may abut against the narrow side of the active segment 11. Optionally, the thickness of the first supporting plate 24 is selected according to the size of the narrow side of the enameled wire 1, and the thickness of the first supporting plate 24 is selected in a range of 0.7mm to 5.0 mm. Preferably, the thickness of the first support plate 24 is selected to be 0.8mm, 1.0mm, 1.5mm, 1.8mm, 2.2mm, 2.8mm, 3.0mm, 3.5mm or 4.0 mm.
As shown in fig. 4, in this embodiment, a third receiving groove is formed in the first rotating member 5, the third receiving groove includes a first groove wall 71 for abutting against an end surface of the to-be-rotated section 12, a second groove wall 72 connected to the first groove wall 71, and a third groove wall 73 connected to the first groove wall 71 and arranged at an interval opposite to the second groove wall 72, a second pressing plate 51 for being matched with the second groove wall 72 to tightly attach to a wide edge of the to-be-rotated section 12 is disposed in the third receiving groove, a second supporting plate for abutting against a narrow edge of the to-be-rotated section 12 is disposed between the second groove wall 72 and the second pressing plate 51, and the first groove wall 71, the second groove wall 72, the second pressing plate 51, and the second supporting plate enclose to form the second receiving groove 6. The first groove wall 71 may abut against the end surface of the section to be rotated 12 from one end. The second groove wall 72 is matched with the second pressing plate 51, and can be respectively clung to the wide side of the section 12 to be rotated from two sides. The second pallet may abut against the narrow side of the section 12 to be rotated. Optionally, the thickness of the second supporting plate is selected according to the size of the narrow side of the enameled wire 1, and the selected range of the thickness of the second supporting plate is 0.7 mm-5.0 mm. Preferably, the thickness of the second support plate is selected to be 0.8mm, 1.0mm, 1.5mm, 1.8mm, 2.2mm, 2.8mm, 3.0mm, 3.5mm or 4.0 mm.
As shown in fig. 5, in this embodiment, at least two first bolts 25 are disposed on the first supporting plate 24 for penetrating through the vertical plate 22, a first nut 26 for screwing with the first bolt 25 to fix the first supporting plate 24 on the vertical plate 22 is disposed on a side of the vertical plate 22 away from the first pressing plate 23, at least two second bolts 52 for penetrating through the second groove wall 72 are disposed on the second supporting plate, and a second nut 53 for screwing with the second bolt 52 to fix the second supporting plate on the second groove wall 72 is disposed on a side of the second groove wall 72 away from the second pressing plate 51. The first nut 26 is screwed with the first bolt 25, so that the first supporting plate 24 can be firmly fixed on the vertical plate 22, and the first supporting plate 24 is convenient to abut against the narrow edge of the movable section 11. The second nut 53 is screwed with the second bolt 52, so that the second supporting plate can be firmly fixed on the second groove wall 72, and the second supporting plate is convenient to abut against the narrow edge of the section to be rotated 12.
As shown in fig. 5 and 6, in the embodiment, the vertical plate 22 is provided with a first through groove 27 along the vertical direction for the first bolt 25 to pass through, and the second groove wall 72 is provided with a second through groove 54 along the vertical direction for the second bolt 52 to pass through, so that the positions of the first supporting plate 24 and the second supporting plate are adjusted along the vertical direction to bend the enameled wires 1 with different broadside sizes. When the enameled wires 1 with different broadside sizes are bent, the first bolt 25 is moved in the first through groove 27 along the vertical direction, and the second bolt 52 is moved in the second through groove 54, so that the positions of the first supporting plate 24 and the second supporting plate are adjusted along the vertical direction, the first supporting plate 24 is convenient to abut against the narrow side of the movable section 11, and the second supporting plate is convenient to abut against the narrow side of the section to be rotated 12.
As shown in fig. 4 and 6, in this embodiment, the vertical plate 22 is provided with a first positioning shaft 28 along the horizontal direction, the first pressing plate 23 is movably sleeved on the first positioning shaft 28, the bottom plate 21 is provided with a second positioning shaft 29 along the vertical direction, a second rotating member 210 for rotating around the second positioning shaft 29 and pushing the first pressing plate 23 to move along the first positioning shaft 28 is rotatably sleeved on the second positioning shaft 29, and the third groove wall 73 is provided with a screw 55 for screwing with the third groove wall 73 and pushing the second pressing plate 51 to move along the horizontal direction, so as to adjust the positions of the first pressing plate 23 and the second pressing plate 51 along the horizontal direction to bend the enameled wires 1 with different narrow side sizes. When the enameled wires 1 with different narrow side sizes are bent, the second rotating piece 210 is rotated around the second positioning shaft 29, so that the second rotating piece 210 abuts against and pushes the first pressing plate 23 to move along the first positioning shaft 28, the screw 55 is screwed with the third groove wall 73, the screw 55 abuts against and pushes the second pressing plate 51 to move along the horizontal direction, the positions of the first pressing plate 23 and the second pressing plate 51 are adjusted along the horizontal direction, the first pressing plate 23 is convenient to cling to the wide side of the movable section 11, and the second pressing plate 51 is convenient to cling to the wide side of the section 12 to be rotated. Optionally, the end of the second rotating member 210 is a slope, so as to push and push the first pressing plate 23 to move when rotating.
As shown in fig. 5, 7, 8 and 9, in the present embodiment, the first rotating member 5 is provided with a first shaft lug 56 and a second shaft lug 57 arranged opposite to the first shaft lug 56 at an interval, the vertical plate 22 is fixedly provided with a first shaft sleeve 211 in a penetrating manner, the first shaft lug 56 is rotatably sleeved on the first shaft sleeve 211, the second shaft lug 57 is fixedly provided with a second shaft sleeve 58 in a penetrating manner, and the first pressing plate 23 is movably sleeved on the second shaft sleeve 58. A first shaft sleeve 211 is fixedly arranged on the vertical plate 22 in a penetrating manner, and the first shaft lug 56 is rotatably sleeved on the first shaft sleeve 211, so that the first shaft lug 56 can rotate around the axis of the first shaft sleeve 211; the second shaft sleeve 58 is fixedly arranged on the second shaft lug 57 in a penetrating manner, and the first pressure plate 23 is movably sleeved on the second shaft sleeve 58, so that the second shaft lug 57 can rotate around the axis of the second shaft sleeve 58, and the first rotating member 5 can rotate around the axes of the first shaft sleeve 211 and the second shaft sleeve 58. The first pressure plate 23 is movably sleeved on the second shaft sleeve 58, so that the first pressure plate 23 can move along the second shaft sleeve 58. Optionally, the first fixed shaft 4 includes a shaft body 41 fixedly inserted into the first sleeve 211, and a shaft rod 42 connected to the shaft body 41 and used for bending the section to be bent 13 around. The shaft body 41 is fixedly inserted into the first shaft sleeve 211, so that the axis of the shaft body 41 coincides with the axis of the first shaft sleeve 211, that is, the first rotating member 5 can rotate around the axis of the shaft body 41. When the first rotating member 5 rotates around the axis of the shaft body 41, the section to be bent 13 of the enamel wire 1 can be bent around the shaft rod 42. Optionally, the radius of the shaft 42 is selected according to the broadside dimensions of the enamel wire 1. Optionally, a second fixed shaft 59 is fixedly inserted into the second sleeve 58, and the shaft 42 extends into the second fixed shaft 59. The second fixed shaft 59 is fixedly penetrated in the second bushing 58 such that an axis of the second fixed shaft 59 coincides with an axis of the second bushing 58. The shaft 42 extends into the second fixed shaft 59 such that the axis of the shaft body 41 coincides with the axis of the second fixed shaft 59.
As shown in fig. 6, in the present embodiment, a spring 212 is disposed between the vertical plate 22 and the first pressing plate 23, and is disposed on the first positioning shaft 28 for automatically returning the first pressing plate 23 when the second rotating member 210 releases the first pressing plate 23. The spring 212 is disposed between the vertical plate 22 and the first pressing plate 23, and when the second rotating member 210 releases the first pressing plate 23, the spring 212 can automatically return the first pressing plate 23 by using an elastic force, so as to conveniently take out the bent enamel wire 1.
As shown in fig. 3, in the present embodiment, a limiting member 510 is disposed at one end of the first rotating member 5 close to the first fixing shaft 4, and a limiting groove 213 for cooperating with the limiting member 510 to limit the first rotating member 5 when the first rotating member 5 rotates around the first fixing shaft 4 to a horizontal open state is disposed on the vertical plate 22. When the first rotating member 5 rotates around the first fixing shaft 4 to the horizontal open state, the limiting groove 213 can abut against the limiting member 510, so as to limit the first rotating member 5, so that the first rotating member 5 is kept in the horizontal open state, and the enameled wire 1 is conveniently placed into the first accommodating groove 3 and the second accommodating groove 6.
The invention also provides an enameled wire narrow-side bending test method, which adopts the enameled wire narrow-side bending test device and comprises the following steps: a. cutting a section of enameled wire 1; b. rotating the first rotating member 5 around the first fixed shaft 4 to a horizontally opened state; c. placing the section to be rotated 12 of the enameled wire 1 into the second accommodating groove 6, enabling the groove wall of the second accommodating groove 6 to be tightly attached to the wide edge of the section to be rotated 12 and abut against the end surface of the section to be rotated 12, and enabling the groove bottom of the second accommodating groove 6 to abut against the narrow edge of the section to be rotated 12; d. placing the movable section 11 of the enameled wire 1 into the first accommodating groove 3, enabling the groove wall of the first accommodating groove 3 to be tightly attached to the wide edge of the movable section 11, and enabling the groove bottom of the first accommodating groove 3 to abut against the narrow edge of the movable section 11; e. rotating the first rotating member 5 around the first fixed shaft 4 to a horizontal closed state, so that the section to be bent 13 of the enameled wire 1 is bent around the first fixed shaft 4; f. and taking out the enameled wire 1, observing whether the insulating layer of the section to be bent 13 is separated from the conductor, and observing whether the insulating layer of the section to be bent 13 is cracked and the conductor is exposed.
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 narrow-side bending test device for an enameled wire (1) is used for bending the enameled wire (1) along a narrow side, wherein the enameled wire (1) comprises a movable section (11), a section to be rotated (12) and a section to be bent (13) connecting the movable section (11) and the section to be rotated (12),
the enameled wire narrow edge bending test device comprises a base (2), a wide edge which is arranged on the base (2) and used for being tightly attached to the movable section (11), a first accommodating groove (3) which is used for abutting against the narrow edge of the movable section (11), a first fixed shaft (4) which is fixedly arranged on the base (2) in a penetrating manner, a first rotating piece (5) which is rotatably sleeved on the first fixed shaft (4) and used for rotating around the first fixed shaft (4), and a second accommodating groove (6) which is arranged on the first rotating piece (5) and used for being tightly attached to the wide edge of the section to be rotated (12) and abutting against the narrow edge and the end face of the section to be rotated (12),
when the first rotating piece (5) rotates around the first fixed shaft (4), the section (12) to be rotated is driven to rotate around the first fixed shaft (4), and the section (13) to be bent is formed by bending around the first fixed shaft (4).
2. The narrow-side bending test device for enameled wires according to claim 1, characterized in that,
the base (2) comprises a bottom plate (21), a vertical plate (22) arranged on the bottom plate (21) and a first pressing plate (23) which is distributed at intervals relative to the vertical plate (22) and is used for being matched with the vertical plate (22) to be tightly attached to the wide edge of the movable section (11),
a first supporting plate (24) used for supporting the narrow edge of the movable section (11) is arranged between the vertical plate (22) and the first pressing plate (23),
the vertical plate (22), the first pressing plate (23) and the first supporting plate (24) are enclosed to form the first accommodating groove (3).
3. The narrow-side bending test device for enameled wires according to claim 2,
a third accommodating groove is formed in the first rotating part (5), the third accommodating groove comprises a first groove wall (71) used for abutting against the end face of the section to be rotated (12), a second groove wall (72) connected with the first groove wall (71), and a third groove wall (73) connected with the first groove wall (71) and arranged opposite to the second groove wall (72) at intervals,
a second pressure plate (51) which is used for being matched with the second groove wall (72) to be tightly attached to the wide edge of the section (12) to be rotated is arranged in the third accommodating groove,
a second supporting plate used for supporting the narrow edge of the section to be rotated (12) is arranged between the second groove wall (72) and the second pressing plate (51),
the first groove wall (71), the second groove wall (72), the second pressing plate (51) and the second supporting plate are enclosed to form the second accommodating groove (6).
4. The narrow-side bending test device for enameled wires according to claim 3,
the first supporting plate (24) is provided with at least two first bolts (25) which are used for penetrating through the vertical plate (22), one side of the vertical plate (22) far away from the first pressing plate (23) is provided with a first nut (26) which is used for being screwed with the first bolts (25) so as to fix the first supporting plate (24) on the vertical plate (22),
the second supporting plate is provided with at least two second bolts (52) penetrating through the second groove wall (72), and one side, away from the second pressing plate (51), of the second groove wall (72) is provided with second nuts (53) which are used for being screwed with the second bolts (52) to fix the second supporting plate on the second groove wall (72).
5. The narrow-side bending test device for enameled wires according to claim 4, characterized in that,
a first through groove (27) for the first bolt (25) to pass through is formed in the vertical plate (22) along the vertical direction, and a second through groove (54) for the second bolt (52) to pass through is formed in the second groove wall (72) along the vertical direction, so that the positions of the first supporting plate (24) and the second supporting plate can be adjusted along the vertical direction to bend the enameled wires (1) with different broadside sizes.
6. The narrow-side bending test device for enameled wires according to claim 3,
a first positioning shaft (28) is arranged on the vertical plate (22) along the horizontal direction, the first pressing plate (23) is movably sleeved on the first positioning shaft (28), a second positioning shaft (29) is arranged on the bottom plate (21) along the vertical direction, a second rotating member (210) which is used for rotating around the second positioning shaft (29) and pushing the first pressing plate (23) to move along the first positioning shaft (28) is rotatably sleeved on the second positioning shaft (29),
a screw rod (55) which is screwed with the third groove wall (73) and pushes the second pressure plate (51) to move along the horizontal direction is arranged on the third groove wall (73),
so as to adjust the positions of the first pressing plate (23) and the second pressing plate (51) in the horizontal direction to bend the enameled wire (1) with different narrow side sizes.
7. The narrow-side bending test device for enameled wires according to claim 6, characterized in that,
the first rotating piece (5) is provided with a first shaft lug (56) and a second shaft lug (57) which is arranged opposite to the first shaft lug (56) at intervals,
a first shaft sleeve (211) is fixedly arranged on the vertical plate (22) in a penetrating way, the first shaft lug (56) is rotatably sleeved on the first shaft sleeve (211),
a second shaft sleeve (58) is fixedly arranged on the second shaft lug (57) in a penetrating manner, and the first pressure plate (23) is movably sleeved on the second shaft sleeve (58);
the first fixed shaft (4) comprises a shaft body (41) fixedly arranged in the first shaft sleeve (211) in a penetrating mode and a shaft rod (42) which is connected with the shaft body (41) and used for enabling the section to be bent (13) to be bent in a surrounding mode;
a second fixed shaft (59) is fixedly arranged in the second shaft sleeve (58) in a penetrating mode, and the shaft lever (42) extends into the second fixed shaft (59).
8. The narrow-side bending test device for enameled wires according to claim 6, characterized in that,
a spring (212) which is sleeved on the first positioning shaft (28) and is used for enabling the first pressure plate (23) to automatically reset when the second rotating part (210) loosens the first pressure plate (23) is arranged between the vertical plate (22) and the first pressure plate (23).
9. The narrow-side bending test device for enameled wires according to claim 2,
one end, close to the first fixed shaft (4), of the first rotating member (5) is provided with a limiting member (510), and the vertical plate (22) is provided with a limiting groove (213) which is used for being matched with the limiting member (510) so as to limit the first rotating member (5) when the first rotating member (5) rotates around the first fixed shaft (4) to a horizontal opening state.
10. An enameled wire narrow-side bending test method is characterized in that the enameled wire narrow-side bending test device according to any one of claims 1-9 is adopted, and the enameled wire narrow-side bending test method comprises the following steps:
a. cutting a section of enameled wire (1);
b. rotating the first rotating member (5) around the first fixed shaft (4) to a horizontal open state;
c. putting a section (12) to be rotated of the enameled wire (1) into a second accommodating groove (6), enabling the groove wall of the second accommodating groove (6) to be tightly attached to the wide edge of the section (12) to be rotated and abut against the end surface of the section (12) to be rotated, and enabling the groove bottom of the second accommodating groove (6) to abut against the narrow edge of the section (12) to be rotated;
d. placing the movable section (11) of the enameled wire (1) into a first accommodating groove (3), enabling the groove wall of the first accommodating groove (3) to be tightly attached to the wide edge of the movable section (11), and enabling the groove bottom of the first accommodating groove (3) to abut against the narrow edge of the movable section (11);
e. rotating the first rotating piece (5) around the first fixed shaft (4) to a horizontal closed state, so that the section (13) to be bent of the enameled wire (1) is bent around the first fixed shaft (4);
f. and taking out the enameled wire (1), observing whether the insulating layer of the section to be bent (13) is separated from the conductor, and observing whether the insulating layer of the section to be bent (13) is cracked and the conductor is exposed.
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| CN201910875295.XA CN110595912B (en) | 2019-09-17 | 2019-09-17 | Enameled wire narrow-edge bending test device and enameled wire narrow-edge bending test method |
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