CN210306198U - Synchronous welding device for commutator segments of hook-type commutator - Google Patents

Abstract

The utility model provides a commutator segment synchronous welding device of a hook-type commutator, belonging to the technical field of motor assembly production equipment; it has a working table and a clamp unit; the peripheries of the clamp units are uniformly distributed around the plurality of resistance welding units and are arranged in one-to-one correspondence with the commutator segment hooks on the motor rotor clamped by the clamp units; the plurality of resistance welding units comprise resistance welding mechanisms and smoke slag components; the resistance welding mechanism comprises a power supply arranged on the workbench, and a negative electrode assembly and a positive electrode mechanism which surround the periphery of the clamp unit; the positive mechanism and the negative component are respectively contacted with the commutator segment hook to form a current loop, local high temperature is generated to enable the commutator segment hook to be in a softening state, and then the commutator segment hook is bent by the positive mechanism to enable a plurality of hooks on the commutator segment to be synchronously and automatically welded with winding wires hung on the commutator segment hook; the welding machine has the characteristics of high automation degree, firm welding, good conductive effect, high welding quality, attractive appearance, high machining efficiency, self-purification machining working condition and the like.

Description

Synchronous welding device for commutator segments of hook-type commutator

Technical Field

The utility model relates to a technical field of motor equipment production facility especially relates to a synchronous welding set of commutator segment of hook-type commutator.

Background

Electrical machines, such as brushed dc machines, typically include a stator and a rotor; the rotor is provided with a rotating shaft, a commutator fixed on the rotating shaft, a rotor core fixed on the rotating shaft, and a winding wound on the teeth of the rotor core and electrically connected with a commutator bar of the commutator; the stator is electrically connected with the commutator segment through the electric brush, so that power is supplied to the winding. Specifically, the commutator segment generally has a main body electrically connected to the stator through a brush, and a hook generally connected to a winding wire hung on the hook by welding.

At present, when a winding is welded on a commutator segment, a hook is pressed down under stress, and heat generated in the welding process melts an outer insulating layer of a winding wire, so that the winding wire is conducted with the commutator segment; in the specific operation process, the hook and the winding lead on the hook are welded one by one mostly by combining a resistance welding machine manually, so that the effect of electric contact between the winding and the commutator segment is not ideal, and the use reliability of the motor is influenced; on the other hand, when the hook is pressed down under stress, the winding is enabled to generate larger deformation, and under the condition of poor control, the winding is extremely easy to excessively deform or even be broken by pressure, so that the service life of the motor is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a commutator segment synchronous welding device of hook commutator realizes carrying out synchronous automatic weld to commutator segment couple and the winding wire that hangs above that, has that degree of automation is high, the firm electrically conductive effect of welding is good, welding quality is high and pleasing to the eye, machining efficiency is high and characteristics such as oneself purifies processing operating mode.

The utility model provides the following technical proposal, a commutator segment synchronous welding device of a hook-shaped commutator, which is provided with a workbench and a clamp unit which is arranged on the workbench and clamps a motor rotor; the periphery of the clamp unit is uniformly distributed around the plurality of resistance welding units and is in one-to-one correspondence with the commutator segment hooks on the motor rotor clamped by the clamp unit; the resistance welding units comprise resistance welding mechanisms and smoke absorption slag components erected above the resistance welding mechanisms; the resistance welding mechanism comprises a power supply arranged on the workbench, and a negative electrode component and a positive electrode mechanism which surround the periphery of the clamp unit; the positive pole mechanism and the negative pole assembly are respectively contacted with the commutator segment hook to form a current loop, local high temperature is generated to enable the commutator segment hook to be in a softening state, and then through the bending of the positive pole mechanism, a plurality of hooks on the commutator segment and winding wires hung on the hooks are synchronously and automatically welded, so that the automatic welding machine has the characteristics of high automation degree, good welding firmness and electric conduction effect, high welding quality, attractive appearance, high processing efficiency, self-purification processing working condition and the like.

Preferably, the smoking residue assembly comprises a smoking residue mounting seat arranged on the workbench, a mounting rod arranged on the smoking residue mounting seat, an adapter movably arranged on the mounting rod, a smoking residue pipe movably arranged on the adapter and a pump body communicated with the smoking residue pipe; the structure can adjust the position according to different conditions, and realizes the efficient cleaning operation of the smoke in the welding process of the electric resistance welding mechanism and the waste residue absorption operation after cleaning the waste residue attached to the electric resistance welding mechanism after welding.

Preferably, the negative electrode assembly is arranged on a negative electrode mounting seat on the workbench, an arc-shaped piece arranged on the negative electrode mounting seat and connected with the clamp unit, and a negative electrode lead arranged on the arc-shaped piece.

Preferably, the positive mechanism comprises a pressing component, a driving component for driving the pressing component to move and a limiting component for limiting the moving range of the pressing component; the driving assembly comprises a bending mounting plate arranged on the workbench, a motor mounting plate and a bearing seat arranged on the bending mounting plate, a first motor arranged on the motor mounting plate, a ball screw rotatably connected to the bearing seat and a coupling connected with an output shaft of the first motor and the ball screw; the arrangement is such that the pressure applicator assembly provides power.

Preferably, the pressing assembly comprises a slide rail arranged on the bending mounting plate, a sliding table connected with the ball screw and sliding in cooperation with the slide rail, a bending mounting seat sliding in cooperation with the slide rail, a positive mounting seat movably arranged on the bending mounting seat, a positive electrode arranged on the positive mounting seat, and a spring arranged between the bending mounting seat and the sliding table; the purpose that this structure set up is realized on the basis that the positive pole switches on, and just to the couple operation of bending on the reversing sheet.

Preferably, the limit assembly comprises an induction sheet arranged on the bending mounting seat, an origin photoelectric inductor arranged on the bending mounting seat and limit photoelectric inductors arranged on two sides of the origin photoelectric inductor; the arrangement of the structure realizes that the bending degree of the pressing assembly meets the process requirement.

Preferably, the electric resistance welding device further comprises a cleaning unit which is arranged on the workbench and erected above the plurality of electric resistance welding units; the cleaning unit comprises a cleaning component and a cleaning agent supply component; the cleaning assembly comprises a first rodless cylinder arranged on the workbench, a second rodless cylinder arranged on the first rodless cylinder, an annular mounting plate arranged on the second rodless cylinder, a third rodless cylinder and a plurality of cleaning injection heads arranged on the annular mounting plate, and a plurality of groups of cleaning brushes arranged on the third rodless cylinder and positioned below the cleaning injection heads; the structure is arranged to clean waste residues generated after welding of the pressing assembly.

Preferably, the cleaning agent supply assembly comprises a first bracket and a liquid distributor which are arranged on the workbench, and a cleaning agent storage tank which is arranged on the first bracket; the cleaning agent storage tank and the liquid distributor and the cleaning injection head are communicated through rubber tubes; the purpose of this structural arrangement is to achieve a continuous supply of the cleaning agent required for cleaning of the washing assembly.

The utility model has the advantages that: the positive electrode mechanism and the negative electrode assembly in each resistance welding mechanism are respectively contacted with a commutator segment hook to form a current loop, local high temperature is generated to enable the commutator segment hook to be in a softening state, and then the commutator segment hook is bent by the positive electrode mechanism to enable a plurality of hooks on a commutator segment and winding wires hung on the commutator segment to be synchronously and automatically welded; on the other hand, the cleaning unit is combined with the smoke slag sucking component, so that smoke generated in the welding process of the electric resistance welding mechanism is absorbed and cleaned, and waste slag on the electric resistance welding mechanism after a welding machine is cleaned and collected, and the effect of purifying the welding device is achieved; the utility model has the characteristics of degree of automation is high, the firm electrically conductive effect of welding is good, welding quality is high and pleasing to the eye, machining efficiency is high and oneself purifies processing operating mode etc.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a commutator segment synchronous welding device of the hook-type commutator of the present invention;

fig. 2 is a schematic structural view of a resistance welding unit of a commutator segment synchronous welding device of the hook-shaped commutator of the present invention;

FIG. 3 is a schematic structural view of a slag-absorbing component of the synchronous commutator segment welding device of the hook-shaped commutator of the present invention;

fig. 4 is a schematic structural view of a negative electrode assembly of a synchronous welding device for commutator segments of the hook-shaped commutator of the present invention;

fig. 5 is a schematic structural view of a positive electrode mechanism of a commutator segment synchronous welding device of the hook-shaped commutator of the present invention;

fig. 6 is a schematic structural view of a cleaning unit of a commutator segment synchronous welding device of the hook-shaped commutator of the present invention;

description of reference numerals: 100-workbench, 200-clamp unit, 300-resistance welding unit, 310-resistance welding mechanism, 320-smoke slag absorbing component, 321-smoke slag mounting seat, 322-mounting rod, 323-adapter, 324-smoke slag pipe, 330-power supply, 340-negative component, 341-negative mounting seat, 342-arc sheet, 343-negative lead, 350-positive mechanism, 360-pressure component, 361-slide rail, 362-sliding table, 363-bending mounting seat, 364-positive mounting seat, 365-positive electrode, 366-spring, 370-driving component, 371-bending mounting plate, 372-motor mounting plate, 373-bearing seat, 374-first motor, 375-ball screw rod, 376-coupler, 400-cleaning unit, 410-cleaning component, 411-first rodless cylinder, 412-second rodless cylinder, 413-annular mounting plate, 414-third rodless cylinder, 415-cleaning injection head, 416-cleaning brush, 420-cleaning agent supply component, 421 first bracket, 422-liquid distributor, 423-cleaning agent storage tank.

Detailed Description

In order to make the object, technical solution and technical effect of the present invention more clearly understood, the present invention will be further described with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, a commutator segment synchronous welding apparatus of a hook commutator includes a table 100 and a jig unit 200 disposed on the table and clamping a rotor of a motor; the periphery of the clamp unit 200 is uniformly distributed around the plurality of resistance welding units 300, and the clamp unit 200 is arranged in one-to-one correspondence with commutator segment hooks on the motor rotor clamped by the clamp unit; in this embodiment, the number of the resistance welding units 300 is five, but the number of the resistance welding units includes five but is not limited to five, which is determined according to the number of hooks of the commutator segments on the specific motor rotor; it should be noted that the clamp unit 200 is not intended to be protected by the present invention, and therefore, the description thereof is omitted here for brevity.

Referring to fig. 2, each of the resistance welding units 300 includes a resistance welding mechanism 310 and a smoke residue absorbing member 320 mounted above the resistance welding mechanism; the resistance welding mechanism 310 comprises a power supply 330 arranged on the workbench 100, and a negative electrode assembly 340 and a positive electrode mechanism 350 surrounding the periphery of the clamp unit 200; the principle of welding realized by the resistance welding mechanism 310 is that the positive electrode mechanism 350 and the negative electrode assembly 340 respectively contact with the commutator segment hooks to form a current loop, local high temperature is generated to enable the commutator segment hooks to be in a softened state, and then the positive electrode mechanism 350 bends to enable a plurality of hooks on the commutator segment and winding wires hung on the hooks to be synchronously and automatically welded; the synchronous welding device for the commutator segments of the hook-shaped commutator has the characteristics of high automation degree, firm welding, good conductive effect, high welding quality, attractive appearance, high processing efficiency, self-purification processing working conditions and the like.

Referring to fig. 3, the smoking slag assembly 320 includes a smoking slag mounting seat 321 disposed on the workbench 100, a mounting rod 322 disposed on the smoking slag mounting seat, an adapter 323 movably disposed on the mounting rod, a smoking slag pipe 324 movably disposed on the adapter, and a pump body (not shown) communicated with the smoking slag pipe; the height and the horizontal extending distance of the smoke suction slag pipe 324 can be adjusted according to different conditions by the smoke suction slag component 320, so that the smoke in the welding process of the electric resistance welding mechanism 310 can be efficiently cleaned, and the waste slag absorbed after the waste slag is cleaned after the smoke is welded can be effectively cleaned.

Referring to fig. 4, the negative electrode assembly 340 includes a negative electrode mounting base 341 disposed on the worktable 100, an arc piece 342 disposed on the negative electrode mounting base and connected to the clamping unit 200, and a negative electrode lead 343 disposed on the arc piece; the principle of specifically realizing the negative conduction is that, because the arc-shaped piece 342 is fixed on the chuck of the clamp unit 200, the negative lead 343 attached to the arc-shaped piece is clamped by the chuck of the clamp unit 200, the conduction of the negative lead 343 to the reversing piece hook can be realized.

Referring to fig. 5, the cathode mechanism 350 includes a pressing assembly 360, a driving assembly 370 for driving the pressing assembly to move, and a limiting assembly 380 for limiting the moving range of the pressing assembly; the driving assembly 370 includes a bending mounting plate 371 disposed on the worktable 100, a motor mounting plate 372 and a receiving seat 373 disposed on the bending mounting plate, a first motor 374 disposed on the motor mounting plate 372, a ball screw 375 rotatably connected to the receiving seat 373, and a coupling 376 connected to an output shaft of the first motor 374 and the ball screw 375; furthermore, the pressing assembly 360 includes a slide rail 361 disposed on the bending mounting plate 371, a sliding table 362 connected to the ball screw 375 and sliding in cooperation with the slide rail 361, a bending mounting base 363 sliding in cooperation with the slide rail 361, a positive electrode mounting base 364 movably disposed on the bending mounting base, a positive electrode 365 disposed on the positive electrode mounting base, and a spring 366 disposed between the bending mounting base 363 and the sliding table 362; the specific operation process is that the first motor 374 drives the ball screw 375 to rotate to drive the sliding table 362 to move along the sliding rail 361, so as to drive the bending mounting seat 363 to move, so as to assist the positive electrode 365 on the bending mounting seat to bend the commutator segment hook, and in addition, the arrangement of the spring 366 strengthens pressure maintaining treatment during bending the commutator segment hook, so that the positions of the bent commutator segment hooks are uniform and the appearance is attractive.

Further, the limit assembly 380 includes an induction sheet 381 disposed on the bending mounting base 363, an origin photoelectric sensor 382 disposed on the bending mounting base, and limit photoelectric sensors 383 disposed on two sides of the origin photoelectric sensor; the arrangement of the limiting component 380 realizes that the bending degree of the pressing component 360 meets the process requirements and ensures the safety of the pressing component 360 in the operation process.

Referring to fig. 6, the apparatus further includes a cleaning unit 400 disposed on the work table 100 and erected above the plurality of resistance welding units 300; the cleaning unit 400 includes a cleaning assembly 410 and a cleaning agent supply assembly 420; the cleaning assembly 410 includes a first rodless cylinder 411 disposed on the worktable 100, a second rodless cylinder 412 disposed on the first rodless cylinder, an annular mounting plate 413 disposed on the second rodless cylinder, a third rodless cylinder 414 and a plurality of cleaning injection heads 415 disposed on the annular mounting plate, and a plurality of sets of cleaning brushes 416 disposed on the third rodless cylinder 414 and below the cleaning injection heads 415; in the specific operation process, the first rodless cylinder 411 will the cleaning brush 416 is transplanted to the top of the positive electrode 365, the second rodless cylinder 412 drives the cleaning brush 416 to descend by a certain height, then the third rodless cylinder 414 drives the cleaning brush 416 to clean back and forth the waste residue left on the positive electrode 365 after being welded is used for next welding processing, and the waste residue is collected and processed by the smoke absorption residue assembly 320 to achieve the effect of self-purification processing working conditions.

Further, the cleaning agent supply module 420 includes a first support 421 and a dispenser 422 provided on the work table 100, and a cleaning agent storage tank 423 provided on the first support; the cleaning agent storage tank 423 and the liquid distributor 422 and the cleaning injection head 423 are communicated through rubber pipes, so that the cleaning agent required for cleaning can be continuously supplied to the cleaning assembly 410.

The utility model discloses a theory of operation does: because the arc-shaped piece 342 is fixed on the chuck of the clamp unit 200, the negative lead 343 attached to the arc-shaped piece can be switched on along with the clamping of the chuck of the clamp unit 200, and meanwhile, the first motor 374 drives the ball screw 735 to rotate, so as to drive the sliding table 362 to move along the sliding rail 361, so as to drive the bending mounting seat 363 to move, so as to realize that the positive electrode 365 attached to the arc-shaped piece is switched on the positive pole of the commutator hook, the positive pole and the negative pole are respectively contacted with the commutator hook to form a current loop, so that local high temperature is generated to enable the commutator hook to be in a softened state, and then the welding operation is completed through the bending action of the positive mechanism 364; the first rodless cylinder 411 transplants the cleaning brush 416 to the upper side of the positive electrode 365, the second rodless cylinder 412 drives the cleaning brush 416 to descend by a certain height, and then the third rodless cylinder 414 drives the cleaning brush 416 to clean the waste residues left on the positive electrode 365 after welding for the next welding.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims (8)

1. A synchronous welding device for commutator segments of a hook-type commutator comprises a workbench and a clamp unit which is arranged on the workbench and clamps a motor rotor; the fixture is characterized in that a plurality of resistance welding units are uniformly distributed around the periphery of the fixture unit and are arranged in one-to-one correspondence with commutator bar hooks on a motor rotor clamped by the fixture unit; the resistance welding units comprise resistance welding mechanisms and smoke absorption slag components erected above the resistance welding mechanisms; the resistance welding mechanism comprises a power supply arranged on the workbench, and a negative electrode component and a positive electrode mechanism which surround the periphery of the clamp unit; the positive pole mechanism and the negative pole assembly are respectively contacted with the commutator segment hooks to form a current loop, local high temperature is generated to enable the commutator segment hooks to be in a softening state, and then the commutator segment hooks and winding wires hung on the commutator segment hooks are synchronously and automatically welded through bending of the positive pole mechanism.

2. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 1, wherein: the smoking residue subassembly is including locating smoking residue mount pad on the workstation, locate the installation stick on this smoking residue mount pad, the activity is located the adapter on this installation stick, the activity is located the smoking residue pipe on this adapter and is managed the pump body that communicates with this smoking residue.

3. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 1, wherein: the negative electrode assembly is arranged on a negative electrode mounting seat on the workbench, an arc-shaped piece arranged on the negative electrode mounting seat and connected with the clamp unit, and a negative electrode lead arranged on the arc-shaped piece.

4. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 1, wherein: the positive mechanism comprises a pressure applying assembly, a driving assembly for driving the pressure applying assembly to move and a limiting assembly for limiting the moving range of the pressure applying assembly; the driving assembly comprises a bending mounting plate arranged on the workbench, a motor mounting plate arranged on the bending mounting plate, a bearing seat, a first motor arranged on the motor mounting plate, a ball screw rotatably connected with the bearing seat and a coupler connected with the first motor output shaft and the ball screw.

5. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 4, wherein: the subassembly of exerting pressure is including locating bend slide rail on the mounting panel, with ball screw connect and with slide rail cooperation gliding slip table, with slide rail cooperation gliding mount pad of bending, activity are located this positive pole mount pad on the mount pad of bending, are located positive electrode on this positive pole mount pad and are located bend the mount pad and reach spring between the slip table.

6. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 5, wherein: the limiting assembly comprises a sensing piece arranged on the bending mounting seat, an original point photoelectric sensor arranged on the bending mounting seat and limiting photoelectric sensors arranged on two sides of the original point photoelectric sensor.

7. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 1, wherein: the cleaning unit is arranged on the workbench and erected above the plurality of electric resistance welding units; the cleaning unit comprises a cleaning component and a cleaning agent supply component; the cleaning assembly comprises a first rodless cylinder arranged on the workbench, a second rodless cylinder arranged on the first rodless cylinder, an annular mounting plate arranged on the second rodless cylinder, a third rodless cylinder arranged on the annular mounting plate, a plurality of cleaning injection heads and a plurality of cleaning brushes arranged on the third rodless cylinder and positioned below the cleaning injection heads.

8. The commutator segment synchronous welding apparatus of a hook commutator as claimed in claim 7, wherein: the cleaning agent supply assembly comprises a first bracket and a liquid distributor which are arranged on the workbench, and a cleaning agent storage tank arranged on the first bracket; the cleaning agent storage tank and the liquid distributor and the cleaning injection head are communicated through rubber tubes.

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