A casing expansion heating and fixing device

Abstract

A casing expansion heating and fixing device is provided, wherein a cut section of casing is clamped by a casing clamping and cutting assembly. When the section of casing is opposite to a shaped ejector pin, a lifting drive cylinder drives an ejector pin seat and a conical ejector pin to move downward, and the conical ejector pin at least partially extends into an end opening of the casing to expand the end opening of the casing. At the same time, a heating unit heats and shapes the conical ejector pin to prevent the end opening of the casing from rebounding. In this way, the end opening of the casing can be expanded, heated to maintain the shape, and the enameled wire can be inserted easily.

Description

Technical Field

[0001] The invention relates to the technical field of coil production, in particular to a casing expansion heating and fixing device. Background Art

[0002] When winding the coil, it is necessary to wrap the enameled wire (or conductive wire) of the coil, near the starting and tail wires, around a limiting portion for limiting, to prevent the starting and tail wires of the enameled wire from being detached. The insulating layer of the enameled wire wound around the limiting portion is easily scratched, resulting in leakage, wire breakage, etc. Chinese patent CN106533014A discloses a stator coil assembly to solve the problem of easy breakage of the lead wires of the stator coil assembly of the existing motor. The stator coil assembly includes an iron core and a plurality of coils. The iron core includes a yoke portion, and the yoke portion is connected to a plurality of poles. The plurality of coils are formed by winding metal wires around the respective poles of the iron core, and the metal wires extend to the outside of the iron core to form a plurality of lead wires. A lead wire sheath is provided on the periphery of each lead wire, and the lead wire sheath is a hollow sleeve made of insulating material. Before inserting the enameled wire into the casing, the casing needs to be cut off first. When the casing is cut off, the end opening of the casing becomes narrower, making it impossible to insert the enameled wire into the casing. Summary of the invention

[0003] In view of this, the present invention provides a sleeve expansion and heating fixing device which can expand the end opening of the sleeve, heat and maintain the shape, and facilitate the insertion of the enameled wire to solve the above problems.

[0004] A casing expansion heating and fixing device comprises a casing clamping and cutting assembly, a translation driving unit for driving the casing clamping and cutting assembly to translate, and a plurality of heating expansion units located above the casing clamping and cutting assembly; the heating expansion unit comprises a second mounting plate, a lifting driving cylinder mounted on the bottom surface of the second mounting plate, an ejector seat rotatably arranged at the output end of the lifting driving cylinder, a conical ejector mounted on the ejector seat, and a heating unit mounted on the ejector seat and used for heating the conical ejector; the output end of the lifting driving cylinder is located on a side of the lifting driving cylinder away from the second mounting plate; the conical ejector is in the shape of a cone, and the tip of the conical ejector is away from the ejector seat.

[0005] Furthermore, the sleeve clamping and cutting assembly includes a mounting bar, a plurality of clamping cylinders installed at intervals on one side of the mounting bar, two sleeve chucks respectively connected to two output ends of the clamping cylinder, a cutter driving cylinder installed on the mounting bar and located above the clamping cylinder, a cutter connected to the output end of the cutter driving cylinder, and at least one connecting column connected to the other side of the mounting bar, the output end of the translation driving unit is connected to the connecting column, and a sleeve clamping groove is recessed on one side of the two sleeve chucks facing each other.

[0006] Furthermore, the cutter is movably located above the two casing chucks.

[0007] Furthermore, the heating and expanding unit is arranged at the bottom of a vertically arranged first mounting plate, and a plurality of incoming line units are arranged in parallel on one side of the first mounting plate, each heating and expanding unit is located below an incoming line unit, and the incoming line units are used to independently supply enameled wire and sleeve respectively; the second mounting plate is connected to the bottom of the first mounting plate.

[0008] Furthermore, a mounting groove is recessed on the bottom surface of one end of the second mounting plate away from the first mounting plate, the top of the lifting drive cylinder is located in the mounting groove, a plurality of mounting holes are provided on the portion of the second mounting plate having the mounting groove, a plurality of mounting screw holes are provided on the top surface of the lifting drive cylinder, and a plurality of mounting screws pass through the mounting holes of the second mounting plate and are threadedly connected to the mounting screw holes of the lifting drive cylinder.

[0009] Furthermore, a positioning boss is protrudingly provided at one end of the second mounting plate close to the first mounting plate, and the positioning boss abuts against the other side of the first mounting plate; the second mounting plate and the first mounting plate are fixed by a plurality of screws.

[0010] Furthermore, the translation drive unit drives the installation block to move, so that the sleeve clamping grooves of the two sleeve chucks are selectively opposite to the enameled wire, the sleeve or the conical ejector pin.

[0011] Furthermore, the heating and expanding unit also includes a swing rod connected to the ejector seat and a swing driving unit for driving the swing rod to swing around the output end of the lifting drive cylinder.

[0012] Compared with the prior art, the casing expansion heating and fixing device of the present invention comprises a casing clamping and cutting assembly, a translation driving unit for driving the casing clamping and cutting assembly to translate, and a plurality of heating expansion units located above the casing clamping and cutting assembly; the heating expansion unit comprises a second mounting plate, a lifting driving cylinder mounted on the bottom surface of the second mounting plate, a pin seat rotatably arranged at the output end of the lifting driving cylinder, a conical pin mounted on the pin seat, and a heating unit mounted on the pin seat and used for heating the conical pin; the output end of the lifting driving cylinder is located on a side of the lifting driving cylinder away from the second mounting plate; the conical pin is in the shape of a cone, and the tip of the conical pin is away from the pin seat. The sleeve clamping and cutting assembly clamps a section of the truncated sleeve. When the section of the sleeve is opposite to the shaped ejector pin, the lifting drive cylinder drives the ejector seat and the conical ejector pin to move downward, and the conical ejector pin at least partially extends into the end opening of the sleeve to expand the end opening of the sleeve; at the same time, the heating unit heats and shapes the conical ejector pin to prevent the end opening of the sleeve from rebounding, so that the end opening of the sleeve can be expanded, heated to maintain the shape, and the enameled wire can be inserted easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The embodiments of the present invention are described below in conjunction with the accompanying drawings, wherein:

[0014] Figure 1 A three-dimensional schematic diagram of the casing expansion, heating and fixing device provided by the present invention.

[0015] Figure 2 A schematic diagram of the disassembly of the casing expansion heating and fixing device provided by the present invention.

[0016] Figure 3 for Figure 2 A three-dimensional schematic diagram of the heating expansion unit in FIG.

[0017] Figure 4 for Figure 2 Schematic side view of the heating expansion unit in FIG. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention are further described in detail below based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0019] Please refer to Figures 1 to 4 The casing expansion heating and fixing device provided by the present invention includes a casing clamping and cutting assembly, a translation driving unit for driving the casing clamping and cutting assembly to translate, and a plurality of heating expansion units 60 located above the casing clamping and cutting assembly.

[0020] The heating and expanding unit 60 is arranged at the bottom of a vertically arranged first mounting plate 1 . A plurality of incoming line units 2 are arranged in parallel on one side of the first mounting plate 1 . Each heating and expanding unit 60 is located below one of the incoming line units 2 .

[0021] The incoming line unit 2 is used to supply the enameled wire 100 and the sleeve 200 separately and independently.

[0022] The casing clamping and cutting assembly includes a mounting block 10 movably located below the first mounting plate 1, a plurality of clamping cylinders 20 installed at intervals on one side of the mounting block 10, two casing chucks 30 respectively connected to the two output ends of the clamping cylinders 20, a cutter driving cylinder 40 installed on the mounting block 10 and located above the clamping cylinder 20, a cutter 50 connected to the output end of the cutter driving cylinder 40, and at least one connecting column 11 connected to the other side of the mounting block 10, and the output end of the translation drive unit is connected to the connecting column 11.

[0023] The cutter 50 is movably located above the two casing chucks 30 .

[0024] The two sleeve clamping heads 30 have sleeve clamping grooves formed on the opposite sides thereof.

[0025] The heating expansion unit 60 includes a second mounting plate 61 connected to the bottom of the first mounting plate 1, a lifting drive cylinder 62 installed on the bottom surface of the second mounting plate 61, a pin seat 63 rotatably arranged at the output end of the lifting drive cylinder 62, a conical pin 64 installed on the pin seat 63, and a heating unit 65 installed on the pin seat 63 and used for heating the conical pin 64.

[0026] The output end of the lifting drive cylinder 62 is located at a side of the lifting drive cylinder 62 away from the second mounting plate 61 .

[0027] The conical ejector pin 64 is in a conical shape, and the tip of the conical ejector pin 64 is away from the ejector pin seat 63 .

[0028] The bottom surface of the second mounting plate 61 at one end away from the first mounting plate 1 is recessed with a mounting groove 611, and the top of the lifting drive cylinder 62 is located in the mounting groove 611. The part of the second mounting plate 61 having the mounting groove 611 is provided with a plurality of mounting holes, and the top surface of the lifting drive cylinder 62 is provided with a plurality of mounting screw holes. A plurality of mounting screws pass through the mounting holes of the second mounting plate 61 and are threadedly connected with the mounting screw holes of the lifting drive cylinder 62.

[0029] A positioning boss 612 is protrudingly provided at one end of the second mounting plate 61 close to the first mounting plate 1, and the positioning boss 612 abuts against the other side of the first mounting plate 1. The second mounting plate 61 is fixed to the first mounting plate 1 by a plurality of screws.

[0030] The translation driving unit drives the installation block 10 to move, so that the sleeve clamping grooves of the two sleeve clamps 30 are selectively opposite to the enameled wire 100 , the sleeve 200 or the conical ejector pin 64 .

[0031] The heating and expanding unit 60 further includes a swing rod 66 connected to the ejector seat 63 and a swing driving unit for driving the swing rod 66 to swing around the output end of the lifting driving cylinder 62. The swing rod 66 is connected to the ejector seat 63 via a connector 661.

[0032] The heating unit 65 generates heat after being powered on, thereby increasing the temperature of the conical ejector pin 64 .

[0033] During operation, the translation drive unit first drives the installation block 10 to move, so that the sleeve clamping grooves of the two sleeve chucks 30 are opposite to the sleeve 200, and the line inlet unit 2 supplies the sleeve 200, so that the sleeve 200 enters the sleeve clamping grooves of the two sleeve chucks 30. After the sleeve 200 enters the sleeve clamping grooves for a certain distance, the cutter 50 cuts off the sleeve 200 from the top of the sleeve chuck 30. At this time, the two sleeve chucks 30 clamp the cut-off section of the sleeve 200; then the translation drive unit first drives the installation block 1 0 moves, so that the sleeve clamping grooves of the two sleeve chucks 30 are opposite to the conical ejector pin 64, and the lifting drive cylinder 62 drives the ejector pin seat 63 and the conical ejector pin 64 to move toward the sleeve chuck 30, and the conical ejector pin 64 at least partially extends into the end opening of the truncated section of the sleeve 200, expanding the end opening of the sleeve 200 so that the shape of the end opening of the sleeve 200 is trumpet-shaped; at the same time, the heating unit 65 heats and shapes the conical ejector pin 64 to prevent the end opening of the sleeve 200 from rebounding. In this way, the end opening of the sleeve 200 is opened and shaped, maintaining the trumpet shape, which is convenient for the subsequent enameled wire 100 to penetrate into the sleeve 200.

[0034] Compared with the prior art, the casing expansion heating and fixing device of the present invention includes a casing clamping and cutting assembly, a translation driving unit for driving the casing clamping and cutting assembly to translate, and a plurality of heating expansion units 60 located above the casing clamping and cutting assembly; the heating expansion unit 60 includes a second mounting plate 61, a lifting driving cylinder 62 installed on the bottom surface of the second mounting plate 61, a pin seat 63 rotatably arranged at the output end of the lifting driving cylinder 62, a conical pin 64 installed on the pin seat 63, and a heating unit 65 installed on the pin seat 63 and used for heating the conical pin 64; the output end of the lifting driving cylinder 62 is located on the side of the lifting driving cylinder 62 away from the second mounting plate 61; the conical pin 64 is conical in shape, and the tip of the conical pin 64 is away from the pin seat 63. The sleeve clamping and cutting assembly clamps a truncated section of the sleeve 200. When the section of the sleeve 200 is opposite to the conical ejector pin 64, the lifting drive cylinder 62 drives the ejector seat 63 and the conical ejector pin 64 to move downward, and the conical ejector pin 64 at least partially extends into the end opening of the sleeve 200 to expand the end opening of the sleeve 200; at the same time, the heating unit 65 heats and shapes the conical ejector pin 64 to prevent the end opening of the sleeve 200 from rebounding, so that the end opening of the sleeve can be expanded, heated to maintain the shape, and the enameled wire can be inserted easily.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A casing expansion heating and fixing device, characterized in that: The invention comprises a casing clamping and cutting assembly, a translation driving unit for driving the casing clamping and cutting assembly to translate, and a plurality of heating and expanding units located above the casing clamping and cutting assembly; the heating and expanding unit comprises a second mounting plate, a lifting and driving cylinder installed on the bottom surface of the second mounting plate, an ejector seat rotatably arranged at the output end of the lifting and driving cylinder, a conical ejector mounted on the ejector seat, and a heating unit installed on the ejector seat and used for heating the conical ejector; the output end of the lifting and driving cylinder is located on a side of the lifting and driving cylinder away from the second mounting plate; the conical ejector is in the shape of a cone, and the tip of the conical ejector is away from the ejector seat, and the heating and expanding unit is arranged at a At the bottom of the first vertically arranged mounting plate, a plurality of line feeder units are arranged in parallel on one side of the first mounting plate, each heating expansion unit is located below a line feeder unit, and the line feeder units are used to supply enameled wire and sleeves respectively and independently; the second mounting plate is connected to the bottom of the first mounting plate, and a mounting groove is arranged in a recessed bottom surface of the second mounting plate at one end away from the first mounting plate, and the top of the lifting drive cylinder is located in the mounting groove, and a plurality of mounting holes are provided on the portion of the second mounting plate having the mounting groove, and a plurality of mounting screw holes are provided on the top surface of the lifting drive cylinder, and a plurality of mounting screws pass through the mounting holes of the second mounting plate and are threadedly connected with the mounting screw holes of the lifting drive cylinder, The second mounting plate is provided with a positioning boss at one end close to the first mounting plate, and the positioning boss abuts against the other side of the first mounting plate; the second mounting plate is fixed to the first mounting plate by a plurality of screws, the heating expansion unit also includes a swing rod connected to the ejector seat and a swing drive unit for driving the swing rod to swing around the output end of the lifting drive cylinder, the sleeve clamping and cutting assembly includes a mounting bar, a plurality of clamping claw cylinders installed at intervals on one side of the mounting bar, two sleeve chucks connected to the two output ends of the clamping claw cylinder respectively, a cutter drive cylinder installed on the mounting bar and located above the clamping claw cylinder, a cutter connected to the output end of the cutter drive cylinder and at least one connecting column connected to the other side of the mounting bar, the output end of the translation drive unit is connected to the connecting column, a sleeve clamping groove is recessed on one side of the two sleeve chucks facing each other, and the translation drive unit drives the mounting bar to move, so that the sleeve clamping grooves of the two sleeve chucks are selectively opposite to the enameled wire, the sleeve or the conical ejector.

2. The casing expansion heating and fixing device according to claim 1, characterized in that: The cutter is movably located above the two casing chucks.

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