Groove milling tool and groove milling device for coreless motor commutator

Abstract

The utility model discloses a groove milling tool and a groove milling device for a coreless motor commutator, which belong to the technical field of groove milling and comprise a tool table fixedly mounted on a machine table and a three-axis industrial robot fixedly mounted on the machine table. An electric index plate is fixedly installed on the tool table, a supporting mandrel used for supporting a commutator is fixedly installed at the power output end of the electric index plate, and a pressing assembly used for being matched with the electric index plate to press the commutator is fixedly installed on the tool table. A supporting frame is fixedly installed at the moving end of the three-axis industrial robot, and a milling cutter is fixedly installed on the supporting frame. And a laser tracker for tracking and ranging the photosensitive material in the cutter groove is fixedly mounted on the support frame. By means of the mode, the commutator is rapidly positioned and pressed, the groove milling precision is guaranteed, and the commutator is kept stable; and meanwhile, the laser tracker is used for tracking, positioning and tracking distance measurement of the cutter groove to judge the groove milling position and the cutter feeding depth, so that the groove milling precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technology field of milling groove, concretely relates to a hollow cup motor commutator's milling groove frock and milling groove device. BACKGROUND

[0002] When the rotary workpiece (such as the workpiece of cylindrical, milling groove position is evenly distributed in the circumferential array) passes through the milling groove process, for the convenience of positioning the workpiece, usually through the workpiece is placed on the standard frock.

[0003] Such as Chinese patent CN216178671U discloses a kind of milling groove frock, the frock includes base, support plate and the frock main body of cylinder, frock main body is provided with the clamping mechanism for clamping workpiece and the limiting slot for positioning and installation.

[0004] But for some smaller size rotary workpiece (such as the commutator shown in the attached Figure 6 When milling, it is difficult to accurately determine the depth of cut, thereby affecting the milling accuracy.

[0005] Based on this, the utility model designs a kind of hollow cup motor commutator's milling groove frock and milling groove device to solve the above problems. INVENTION CONTENTS

[0006] In view of the above shortcomings of prior art, the utility model provides a kind of hollow cup motor commutator's milling groove frock and milling groove device.

[0007] To achieve the above object, the utility model is realized by the following technical schemes:

[0008] A kind of hollow cup motor commutator's milling groove frock, including frock table fixedly installed on machine table;

[0009] The frock table is fixedly installed with electric protractor, and the power output end of electric protractor is fixedly installed with support arbor for supporting commutator, and the frock table is fixedly installed with the compression assembly for cooperating with support arbor to compress commutator;

[0010] The support arbor includes mounting shaft, boss, shaft rod, circular groove, shaft and positioning slot, mounting shaft is fixedly installed on the power output end of electric protractor, mounting shaft is fixedly installed with boss, boss upper side is fixedly installed with shaft rod, circular groove is formed in the center of the top of shaft rod, and a plurality of positioning slots for hook tooth clamping are formed in the circumferential array at the edge of the top of shaft rod;Circular groove center is fixedly installed with the shaft for inserting into cylinder.

[0011] Further, the support arbor further includes cutter groove, and cutter groove is formed in the circumferential array on the upper side of shaft rod.

[0012] Further, the knife groove is located between the two adjacent positioning grooves.

[0013] Further, the knife groove is located between the two adjacent positioning grooves.

[0014] Further, the pressing assembly comprises a mounting table, a cylinder, a moving plate, a guide rod and a rotating rod, the mounting table is fixedly installed on the tooling table, the upper side of the mounting table is fixedly installed with the cylinder, the output end of the cylinder is fixedly connected with one end of the moving plate, the other end of the moving plate is rotatably installed with the rotating rod for pressing the commutator, the lower side of the moving plate is fixedly installed with the guide rod, and the guide rod is limitingly and slidably connected with the mounting table.

[0015] A kind of milling groove device of the milling groove tooling of the hollow cup motor commutator, including three-axis industrial robot fixedly installed on machine table;The moving end of the three-axis industrial robot is fixedly installed with support frame, and laser tracker is fixedly installed on support frame for tracking and distance measuring the photosensitive material in knife groove.

[0016] Further, the laser tracker is located below the milling cutter and is aligned with the knife groove.

[0017] Further, the laser tracker is located below the milling cutter and is aligned with the knife groove.

[0018] Compared with the prior art, the utility model has the beneficial effects that: 1, the commutator is placed into the circular groove, the shaft is inserted into the cylinder, the hook tooth is clamped into the positioning groove, and the positioning of the commutator is completed;At this time, the knife groove is aligned with the insulating groove to be processed;Then, the cylinder drives the moving plate to move, the moving plate moves vertically under the limiting action of the guide rod, thereby driving the rotating rod to move vertically, so that the rotating rod is pressed against the end of the cylinder, thereby keeping the commutator stable during milling.

[0019] 2, the motor index plate drives the shaft to rotate through the mounting shaft, the boss and the shaft, thereby driving the commutator to rotate, so that the insulating groove to be processed on the outer edge of the cylinder is aligned with the milling cutter in turn;The three-axis industrial robot drives the milling cutter to move through the support frame, thereby milling the insulating groove in turn;In this process, the laser tracker is used for tracking and positioning and tracking and distance measuring the knife groove, the relative position of the milling cutter and the cylinder and the depth of feed are judged, thereby accurately controlling the milling position and depth, so that the milling position can be accurately judged during milling. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor.

[0021] Figure 1 A milling groove tool and a milling groove device for a hollow cup motor commutator of the utility model Figure 1 ;

[0022] Figure 2 A milling groove tool and a milling groove device for a hollow cup motor commutator of the utility model

[0023] Figure 3 A milling groove tool and a milling groove device for a hollow cup motor commutator of the utility model Figure 2 ;

[0024] Figure 4 For Figure 3 Enlarged view of A in the middle

[0025] Figure 5 For the schematic diagram of the shaft rod and its connecting structure

[0026] Figure 6 For the schematic diagram of the commutator structure

[0027] The reference numerals in the drawings represent respectively:

[0028] 1, machine table; 21, three-axis industrial robot; 22, support frame; 23, milling cutter; 24, laser tracker; 3, tooling table; 31, electric protractor; 32, support mandrel; 321, mounting shaft; 322, boss; 323, shaft rod; 324, circular groove; 325, insertion shaft; 326, positioning groove; 327, cutter groove; 33, compression assembly; 331, mounting table; 332, air cylinder; 333, moving plate; 334, guide rod; 335, rotating rod; 5, commutator; 51, cylinder; 52, hook tooth; 53, insulating groove. DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] In the following description, "left", "right", "front", "back", "up", "down" are oriented in the perspective direction of the front view.

[0031] In some embodiments, please refer to the Figures 1-6A kind of hollow cup motor commutator's groove milling tooling, including fixedly installed on the tooling table 3 of machine table 1;

[0032] Electric protractor 31 is fixedly installed on the tooling table 3, and the power output end of electric protractor 31 is fixedly installed with the support arbor 32 for supporting commutator 5, and the pressing assembly 33 for cooperating with support arbor 32 to compress commutator 5 is fixedly installed on tooling table 3;

[0033] The support arbor 32 includes mounting shaft 321, boss 322, shaft rod 323, circular groove 324, plug shaft 325 and positioning groove 326, mounting shaft 321 is fixedly installed on the power output end of electric protractor 31, mounting shaft 321 is fixedly installed with boss 322, boss 322 is fixedly installed with shaft rod 323 on the upper side, circular groove 324 is formed in the top center of shaft rod 323, and a plurality of positioning grooves 326 for being clamped with hook tooth 52 are formed in the top edge of shaft rod 323 in circumferential array at equal intervals;Circular groove 324 is fixedly installed with plug shaft 325 for being inserted with cylinder 51.

[0034] The support arbor 32 further includes knife groove 327, and the upper side of shaft rod 323 is provided with knife groove 327 in circumferential array;

[0035] The knife groove 327 is located between the two adjacent positioning grooves 326;

[0036] The knife groove 327 is provided with photosensitive material for facilitating laser tracking;For example: aluminum or silver with high reflectivity to laser.

[0037] The commutator 5 includes cylinder 51, hook tooth 52 and insulation groove 53, and the cylinder 51 is composed of an insulating cylinder and a metal sheet, wherein the inside of the cylinder 51 is an insulating cylinder, the metal sheet is fixedly installed on the outer wall of the insulating cylinder, a plurality of hook teeth 52 are fixedly installed on the bottom of the cylinder 51 in circumferential array at equal intervals, and a plurality of insulation grooves 53 for separating the metal sheets are evenly formed on the outer side wall of the cylinder 51 in circumferential array at equal intervals.

[0038] The pressing assembly 33 includes mounting table 331, air cylinder 332, moving plate 333, guide rod 334 and rotating rod 335, the mounting table 331 is fixedly installed on the tooling table 3, the air cylinder 332 is fixedly installed on the upper side of the mounting table 331, the output end of the air cylinder 332 is fixedly connected with one end of the moving plate 333, and the rotating rod 335 for pressing the commutator 5 is rotatably installed on the other end of the moving plate 333;The guide rod 334 is fixedly installed on the lower side of the moving plate 333, and the guide rod 334 is limitingly and slidingly connected with the mounting table 331.

[0039] In the embodiment, when the milling tool for the commutator of the hollow cup motor works normally, the commutator 5 is placed into the circular groove 324, the shaft 325 is inserted into the cylinder 51, and the hook tooth 52 is clamped into the positioning groove 326, so that the commutator 5 is positioned; at this time, the cutter groove 327 is aligned with the insulating groove 53 to be machined; then, the cylinder 332 is started to drive the moving plate 333 to move, the moving plate 333 moves vertically under the limiting action of the guide rod 334, thereby driving the rotating rod 335 to move vertically and press tightly against the end of the cylinder 51, so that the commutator 5 is kept stable during the milling process; during the machining process, the mounting shaft 321, the boss 322 and the shaft rod 323 are driven to rotate by the electric dividing disc 31, thereby driving the commutator 5 inserted at the end of the shaft rod 323 to rotate synchronously; at the same time, during the milling process, the laser tracking instrument 24 is used to track and measure the cutter groove 327, so as to accurately determine the feed position and the feed depth, thereby ensuring the feed accuracy.

[0040] In some embodiments, referring to the drawings of the specification Figures 1-6 A milling device of a milling tool for the commutator of the hollow cup motor, comprising a three-axis industrial robot 21 fixedly installed on a machine table 1; a support frame 22 is fixedly installed on the moving end of the three-axis industrial robot 21, and a milling cutter 23 is fixedly installed on the support frame 22.

[0041] A laser tracking instrument 24 for tracking and measuring the photosensitive material in the cutter groove 327 is fixedly installed on the support frame 22.

[0042] The laser tracking instrument 24 is located below the milling cutter 23 and is aligned with the cutter groove 327.

[0043] The laser tracking instrument 24 can be a laser tracking instrument produced by Hexagon Manufacturing Intelligence Qingdao Co., Ltd.

[0044] In the embodiment, when the milling device of the milling tool for the commutator of the hollow cup motor works normally, the mounting shaft 321, the boss 322 and the shaft rod 323 drive the shaft 325 to rotate, thereby driving the commutator 5 to rotate, so that the insulating grooves 53 on the outer edge of the cylinder 51 are aligned with the milling cutter 23 in turn; the three-axis industrial robot 21 drives the milling cutter 23 to move through the support frame 22, thereby milling the insulating grooves 53 in turn; during this process, the cutter groove 327 gives way to the milling cutter 23; the laser tracking instrument 24 is used to track and measure the cutter groove 327, so as to determine the relative position of the milling cutter 23 and the cylinder 51 and the feed depth, thereby accurately controlling the milling position and depth, so as to accurately determine the milling position during the milling process, and avoid cutting too deep into the insulating cylinder inside the cylinder 51, which affects the overall strength, and also avoid insufficient depth of the milling cutter 23, which leads to failure to cut off the metal sheet outside the cylinder 51.

[0045] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A hollow cup motor commutator slot milling tool, comprising a tool table (3) fixedly installed on a machine table (1), characterized in that: a power head (31) is fixedly installed on the tool table (3), a supporting arbor (32) for supporting the commutator (5) is fixedly installed on the power output end of the power head (31), and a pressing assembly (33) for pressing the commutator (5) in cooperation with the supporting arbor (32) is fixedly installed on the tool table (3); the supporting arbor (32) comprises a mounting shaft (321), a boss (322), a shaft rod (323), a circular groove (324), a plug shaft (325), and a positioning groove (326), the mounting shaft (321) is fixedly installed on the power output end of the power head (31), the boss (322) is fixedly installed on the mounting shaft (321), the shaft rod (323) is fixedly installed on the upper side of the boss (322), the circular groove (324) is formed in the center of the top of the shaft rod (323), and a plurality of positioning grooves (326) for clamping the hook teeth (52) are equidistantly formed in a circumferential array on the top edge of the shaft rod (323); the plug shaft (325) for plugging with the cylinder (51) is fixedly installed in the center of the circular groove (324).

2. A slot milling tooling for a hollow cup motor commutator according to claim 1, characterized in that, The supporting arbor (32) further comprises a cutter groove (327), and the cutter groove (327) is formed in a circumferential array on the upper side of the shaft rod (323).

3. A slot milling tooling for a hollow cup motor commutator according to claim 2, characterized in that, The cutter groove (327) is located between two adjacent positioning grooves (326).

4. A slot milling tooling for a hollow cup motor commutator according to claim 3, characterized in that, The cutter groove (327) is provided with a photosensitive material for facilitating laser tracking.

5. A slot milling tooling for a hollow cup motor commutator according to claim 4, characterized in that, The pressing assembly (33) comprises a mounting table (331), an air cylinder (332), a moving plate (333), a guide rod (334), and a rotating rod (335), the mounting table (331) is fixedly installed on the tool table (3), the air cylinder (332) is fixedly installed on the upper side of the mounting table (331), one end of the moving plate (333) is fixedly connected with the output end of the air cylinder (332), and the rotating rod (335) for pressing the commutator (5) is rotatably installed on the other end of the moving plate (333); the guide rod (334) is fixedly installed on the lower side of the moving plate (333) and is limitingly and slidably connected with the mounting table (331).

6. A grooving device used in cooperation with the grooving tooling of the hollow cup motor commutator of claim 5, comprising a three-axis industrial robot (21) fixedly installed on a machine table (1), characterized in that, A supporting frame (22) is fixedly installed on the moving end of the three-axis industrial robot (21), and a milling cutter (23) is fixedly installed on the supporting frame (22).

7. The slot milling device of claim 6, wherein, A laser tracker (24) for tracking and measuring the photosensitive material in the cutter groove (327) is fixedly installed on the supporting frame (22).

8. The slot milling device of claim 7, wherein, The laser tracker (24) is located below the milling cutter (23) and is aligned with the cutter groove (327).

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