CN108838648B

CN108838648B - Automatic assembling method for bushing and iron core piece

Info

Publication number: CN108838648B
Application number: CN201810398895.7A
Authority: CN
Inventors: 严水祥; 胡尧坤; 李鹏
Original assignee: Zhejiang Fengyuan Intelligent Equipment Co ltd
Current assignee: Zhejiang Fengyuan Intelligent Equipment Co ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2020-12-25
Anticipated expiration: 2038-04-28
Also published as: CN108838648A

Abstract

The invention discloses an automatic assembling method for a bushing and a core piece, and belongs to the field of production and manufacturing of servo motors. Due to the fact that the shapes of the iron core piece and the bush are irregular, the existing assembling method cannot achieve automatic assembling, the assembling is finished manually, assembling precision is poor, and assembling efficiency is low. The core pieces are placed on a conveyor belt, and the conveyor belt drives the core pieces to move to predetermined positions. The iron core pieces are transported by the conveyer belt, and damage to the iron core pieces is avoided. Meanwhile, the vibration disc vibrates to enable the bushings to be orderly arranged and move nearby the iron core piece, so that the bushings are driven to move to be opposite to the assembly surface of the iron core piece, the bushings are pushed to be connected with the iron core piece in an inserting mode, automatic assembly of the iron core piece and the bushings is completed, the process is simple, assembly efficiency is high, and the scheme is feasible.

Description

Automatic assembling method for bushing and iron core piece

Technical Field

The invention relates to an automatic assembling method of a lining and a core piece, and belongs to the field of production and manufacturing of servo motors.

Background

The servo motor comprises a bush and a core piece, wherein the shape of the bush is irregular, and the bush is shown in the attached figure 19 in the specification; the core member is generally formed by splicing a plurality of I-shaped iron blocks, as shown in the attached figure 21 of the specification. The two sides of the I-shaped iron block are respectively provided with the bushings, and due to the fact that the shapes of the iron core piece and the bushings are irregular, the automatic assembly of the I-shaped iron block cannot be achieved through the existing assembly method, the assembly can be completed manually, the assembly precision is poor, and the assembly efficiency is low.

Chinese patent (publication No. CN106078158B, CN 106363400B) discloses an iron core assembly assembling mechanism, which comprises an iron core assembly mounting frame installed on the ground, an iron core assembly conveying device and a four-position rotary feeding device are installed in the iron core assembly mounting frame in sequence, an iron core rod feeding device and a rubber block feeding device are installed in sequence on one side of the iron core assembly conveying device on the iron core assembly mounting frame, an iron core spring feeding device is installed on one side of the four-position rotary feeding device, the rubber block feeding device comprises a rubber block discharging component installed on the iron core assembly mounting frame, and the rubber block discharging component comprises a rubber block vibrating tray, a rubber block discharging mechanical arm and a turnover discharging unit installed on the iron core assembly mounting frame. Through the mode, the assembling precision and the assembling efficiency can be improved.

In the scheme, the iron core is of a columnar structure, the iron core rod feeding device feeds the iron core through the iron core rod vibration tray, the effective arrangement of the iron core can be realized, the iron core pieces are spliced by a plurality of I-shaped iron blocks and are heavy, and the vibration tray and the iron core pieces are subjected to large abrasion through the feeding of the iron core rod vibration tray, so that the service life of the iron core pieces is influenced. And the rubber block is blocky structure and the bush is irregular shape, foretell rubber block loading attachment can't directly be applicable to the material loading of bush, leads to the material loading of bush to realize, and then can't realize servo motor's iron core spare and the automatic assembly of bush. And above-mentioned assembly scheme needs carry out the rotatory material loading of four positions, upset ejection of compact, and the process is more loaded down with trivial details, and assembly efficiency is low.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a bush and an automatic iron core assembling method, wherein the bush and the iron core can be automatically assembled by being suitable for feeding the iron core of a servo motor, and the bush and the iron core are simple in process and high in assembling efficiency.

In order to achieve the purpose, the technical scheme of the invention is as follows:

an automated bushing and core piece assembly method, comprising the steps of:

in the first step, the mechanism is initialized: each rotating motor is in a zero position, and the movable end of each driving source is in an original state;

secondly, feeding the iron core pieces: placing the core pieces on a conveyor belt, and transporting the core pieces to a predetermined position;

thirdly, bushing feeding: the lining is placed in a vibration disc and is conveyed to a front assembling position through direct vibration;

fourthly, assembling the iron core piece and the lining: clamping the bush up and down to enable the bush and the iron core piece to be positioned on the same plane, and further pushing the bush to translate and be inserted into the iron core piece;

and fifthly, after the front assembly of the iron core piece is completed, moving the iron core piece to a back assembly position, and performing back assembly of the iron core piece to complete the assembly of the iron core piece and the bush.

The core pieces are placed on a conveyor belt, and the conveyor belt drives the core pieces to move to predetermined positions. The iron core pieces are transported by the conveyer belt, and damage to the iron core pieces is avoided. Meanwhile, the vibration disc vibrates to enable the bushings to be orderly arranged and move nearby the iron core piece, so that the bushings are driven to move to be opposite to the assembly surface of the iron core piece, the bushings are pushed to be connected with the iron core piece in an inserting mode, automatic assembly of the iron core piece and the bushings is completed, the process is simple, assembly efficiency is high, and the scheme is feasible.

Preferably, in the second step, the conveyor belt drives the core member to move transversely, and when the core member is conveyed to the end of the conveyor belt, the end of the core member is pushed to move longitudinally, so that the occupied volume of the assembling mechanism can be effectively reduced.

As a preferable technical measure, the end pre-positioning is performed on the sliding way in which the iron core member moves longitudinally before the iron core member moves longitudinally, and the positioning is performed on the side surface of the iron core member after the iron core member moves longitudinally. The core member placement range is limited, and the positional deviation of the core member is avoided.

As the preferred technical measure, the end positioning and the side positioning are finished, the iron core piece is pressed and positioned from top to bottom, when the bushing is assembled with the iron core piece, the end positioning and the side positioning are released, so that the assembly side of the iron core piece is exposed, the assembly with the bushing is realized, and the process is simple and practical.

As a preferable technical measure, the iron core piece and the bush are offset and loaded, and the iron core piece and the bush are separated by a certain distance in the vertical direction when moving, so that the bush is convenient to position.

And fourthly, arranging an inserting port matched with the shape of the bush on the horizontal plane, inserting the bush through the inserting port, further removing the clamping in the vertical direction, and driving the bush to translate through the inserting port. The socket lateral shifting grafting bush for during the bush embedding socket, and then the socket drives bush synchronous motion, need not complicated manipulator structure, ejection of compact unit, make assembly structure simple, practical, low in manufacturing cost, the scheme is feasible.

As a preferable technical measure, the translational bush is guided, the assembling structures of the bush and the iron core piece are ensured to be positioned on the same plane, and the situation that the normal assembly is influenced due to overlarge moving error of the bush is avoided.

As a preferable technical measure, after the bush is inserted into the core member, a large pushing force is required to push the bush into the core member again. Because the position difference exists between the lining and the iron core piece, in order to avoid the damage of the lining and the iron core piece during the assembly, the smaller thrust is used for pushing the lining to be pressed into the iron core piece during the initial assembly of the lining, and after the assembly is finished, in order to ensure the accurate assembly of the lining and the iron core piece, the pressure needs to be increased to extrude the lining again, so that the firm assembly of the lining and the iron core piece is ensured. As a preferable technical measure, the number of the bushings to be assembled on the side surface of a single iron core piece is n, n/m bushings can be assembled at one time, the position of the bushing assembling structure is unchanged, and complete assembly on the side surface of the iron core piece is realized by moving the position of the iron core piece, wherein m is a positive integer and is a submultiple of n. Because a plurality of bushings are required to be assembled on one side surface of the iron core piece, the number of the bushings which are fed at one time is limited due to the manufacturing cost of the bushing feeding mechanism, the assembling requirement of the iron core piece cannot be met, and the assembling problem of the iron core piece and a plurality of bushings can be solved only by adopting a mode of feeding the bushings for a plurality of times, so that the feeding position of the bushings is unchanged, and the iron core piece and the bushings are assembled by moving the iron core piece. The number of the bushings loaded at one time can be 3, 4, 5 or 6, and the specific number can be comprehensively considered according to the needs or the manufacturing cost.

As a preferable technical measure, after the iron core member and the bush are assembled once, the iron core member is translated by n/m stations, and after the iron core member is assembled on the front side, the iron core member is moved to the back side assembling position in an inserting and dragging mode, so that the process is simple and reasonable, and the scheme is feasible.

Compared with the prior art, the invention has the following beneficial effects:

Drawings

FIG. 1 is a view showing the overall structure of an apparatus to which the present invention is applied;

FIG. 2 is a view showing a partial structure of an apparatus to which the present invention is applied;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2;

FIG. 4 is a view of the structure of FIG. 2 at an angle;

FIG. 5 is a bottom view of the structure of FIG. 4;

FIG. 6 is a structural view of the positioning assembly;

FIG. 7 is a view of the structure of FIG. 6 at an angle;

FIG. 8 is a structural view of the hold-down;

FIG. 9 is a structural view of the jacking members;

FIG. 10 is a view showing the construction of the press-in assembly;

FIG. 11 is a view of the structure of FIG. 10 at an angle;

FIG. 12 is a view of the pressure plate and patch panel assembly;

FIG. 13 is a structural view of the upper guide;

FIG. 14 is a structural view of the lower guide;

FIG. 15 is a view showing a structure of a transfer mechanism;

FIG. 16 is a view of the structure of FIG. 15 at an angle;

FIG. 17 is a schematic view of the anti-seize assembly of the present invention;

FIG. 18 is a view of the press-in assembly assembled with the anti-seize assembly;

FIG. 19 is a view of a bushing configuration;

FIG. 20 is an angled view of the structure of FIG. 19;

fig. 21 is a structural view of the core member;

fig. 22 is a view showing a structure of a core assembling bushing.

Description of reference numerals:

1-a core piece feeding mechanism, 2-a bush feeding mechanism, 3-an assembling mechanism, 4-a transferring mechanism, 5-a blanking mechanism, 6-a workbench, 2A-a reverse bush feeding mechanism, 3A-a front assembling mechanism, 3B-a reverse assembling mechanism, 11-a conveying belt, 12-a feeding assembly, 13-a positioning assembly, 14-a positioning moving plate, 111-a conveying motor, 112-a conveying fixed seat, 113-a belt pulley supporting plate, 121-a toggle driving source, 122-a toggle element, 123-a core feeding supporting plate, 131-an L-shaped plate, 132-a vertical positioning element, 133-an end positioning element, 134-a pressing-down cylinder, 135-an end cylinder, 136-a supporting frame, 137-a pressing-down fixing plate, 1321-spring column, 21-vibration disc, 22-vibration slideway, 31-press-in component, 32-clamping component, 33-guide component, 34-assembly support frame, 35-connecting plate, 311-press-in driving source, 312-plug plate, 313-press-in support plate, 314-press-in guide rail fixing plate, 315-pressing plate, 316-plug interface, 3161-gradient surface, 3162-chamfer structure, 317-spacing piece, 318-anti-sleeve plate, 3181-anti-sleeve piece, 319-anti-sleeve driving source, 321-bush press-down driving source, 322-down piece, 3221-claw-shaped structure, 323-bush press-up driving source, 324-push-up piece, 3241-step groove, 331-upper guide driving source, 332-upper guide piece, 333-lower guide driving source, 334-lower guide, 41-gripper finger assembly, 42-transverse moving assembly, 43-longitudinal moving assembly, 411-gripper finger, 412-gripper finger driving source, 421-transfer connecting plate, 422-transverse moving cylinder, 431-transfer moving plate, 7-lining and 8-iron core piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "end," "side," "upper," "lower," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 to 16, 19, 20, 21, 22, an automatic assembling method of a bush and a core member, comprising the steps of: in the first step, the mechanism is initialized: each rotating motor is in a zero position, and the movable end of each driving source is in an original state;

second, feeding the core pieces 8: placing the core member 8 on the conveyor belt 11, and transporting the core member 8 to a predetermined position; the conveyor belt 11 drives the iron core member 8 to move transversely, when the iron core member 8 is conveyed to the end of the conveyor belt 11, the end part of the iron core member 8 is pre-positioned on the longitudinally moving slide way before the iron core member 8 moves longitudinally, the end part of the iron core member 8 is pushed to move longitudinally, and after the iron core member 8 finishes moving longitudinally, the side surface of the iron core member 8 is positioned.

The end positioning and the side positioning are completed, the iron core piece 8 is pressed and positioned from top to bottom, and then the end positioning and the side positioning are released.

Thirdly, feeding the bush 7: the bush 7 is placed in a vibration disc 21 and is conveyed to a front assembling position through direct vibration; the iron core piece and the bush are loaded in a staggered mode, and a certain distance is reserved between the iron core piece and the bush in the vertical direction when the iron core piece and the bush move.

Fourthly, assembling the iron core piece and the lining: clamping the bush 7 up and down to enable the bush 7 and the iron core piece 8 to be in the same plane, and further pushing the bush 7 to translate to be inserted into the iron core piece 8; a plug-in port matched with the shape of the bush 7 is arranged on the horizontal plane, the bush 7 is plugged in through the plug-in port, then the clamping in the vertical direction is removed, and the bush 7 is driven to move horizontally through the plug-in port. Interface lateral shifting grafting bush for during the bush embedding interface, and then the interface drives bush synchronous motion, and lead to the bush 7 of translation, ensure that bush 7 and the corresponding assembly structure of iron core piece 8 are in the coplanar, need not complicated manipulator structure, ejection of compact unit, make assembly structure simple, practical, low in manufacturing cost, the scheme is feasible.

After the bushing 7 is inserted into the iron core member 8, a larger pushing force is needed to push the bushing 7 to be inserted into the iron core member 8 again, and because the bushing and the iron core member have a position difference, when the bushing is initially assembled, the bushing is pushed into the iron core member by a smaller pushing force, and after the assembly is completed, in order to ensure that the bushing and the iron core member are accurately assembled, the bushing is extruded again by increasing pressure, so that the firm assembly of the bushing and the iron core member is ensured.

And fifthly, after the front assembly of the iron core member 8 is completed, moving the iron core member 8 to a back assembly position, and performing back assembly of the iron core member 8 to complete the assembly of the iron core member and the bush. The vibration disc vibrates to enable the bushings to be orderly arranged and to move nearby the iron core piece, so that the bushings are driven to move to be opposite to the assembly surface on the reverse side of the iron core piece, the bushings are further pushed to be inserted into the iron core piece, automatic assembly of the reverse side of the iron core piece and the bushings is completed, assembly of the front side and the reverse side of the iron core piece is completed, the process is simple, assembly efficiency is high, and the scheme is feasible.

Because a plurality of bushings are required to be assembled on one side surface of the iron core piece, the number of the bushings which are fed at one time is limited due to the manufacturing cost of the bushing feeding mechanism, the assembling requirement of the iron core piece cannot be met, and the assembling problem of the iron core piece and a plurality of bushings can be solved only by adopting a mode of feeding the bushings for a plurality of times, so that the feeding position of the bushings is unchanged, and the iron core piece and the bushings are assembled by moving the iron core piece. The number of the bushings 7 to be assembled on the side surface of the single iron core piece 8 is n, n/m bushings 7 can be assembled at a time, the assembling structure position of the bushings 7 is unchanged, and the complete assembly on the side surface of the iron core piece 8 is realized by moving the position of the iron core piece 8, wherein m is a positive integer and is a submultiple of n. The number of the bushings loaded at one time can be 3, 4, 5 or 6, and the specific number can be comprehensively considered according to the needs or the manufacturing cost. After the iron core piece and the bush are assembled once, the iron core piece 8 translates n/m stations, and after the iron core piece 8 is assembled on the front side, the iron core piece 8 is moved to the assembly position on the back side in an inserting and dragging mode.

The automatic assembling device applying the bushing and iron core piece automatic assembling method is provided with an iron core piece feeding mechanism 1, a bushing feeding mechanism 2, an assembling mechanism 3 and a blanking mechanism 5. The iron core piece feeding mechanism 1 comprises a conveying belt 11 for driving the iron core piece 8 to move transversely, a feeding component 12 for pushing the iron core piece 8 to move longitudinally, and a positioning component 13 for limiting the moving range of the iron core piece 8, wherein the positioning component 13 is arranged perpendicular to the conveying belt 11; the bush feeding mechanism 2 is provided with a vibration disc 21 which enables the bushes 7 to be orderly arranged; the assembling mechanism 3 comprises a clamping assembly 32 for clamping the bush 7 and a pressing assembly 31 for pushing the bush 7 to move.

The core member 8 is placed on the conveyor belt 11, the conveyor belt 11 drives the core member 8 to move to a predetermined position, and the feeding assembly 12 pulls the core member 8 into the positioning assembly 13 for positioning. The core member 8 is transported by the conveyor belt 11 and the core member 8 is fed to a predetermined position by the feeding assembly 12, avoiding damage to the core member 8. Meanwhile, the vibrating disc 21 vibrates to enable the bushings 7 to be orderly arranged and enable the bushings 7 to move nearby the iron core piece 8, then the clamping assembly 32 drives the bushings 7 to move to enable the bushings to be opposite to the assembling surface of the iron core piece 8, and then the pressing assembly 31 drives the bushings 7 to be assembled with the iron core piece 8, so that the automatic assembly of the iron core piece and the bushings is completed, the structure is simple and practical, and the scheme is feasible.

The end of the conveyor belt 11 is connected with a conveyor motor 111, the conveyor motor 111 is fixed on a conveyor fixing seat 112, the conveyor motor 111 and the conveyor fixing seat are fixed through screw pieces, and the conveyor fixing seat 112 is fixed on a belt pulley supporting plate 113 through screws.

The feeding assembly 12 is provided with a toggle member 122 for pushing the core member 8 to move and a toggle driving source 121 for driving the toggle member 122 to reciprocate, and the toggle member 122 is fixedly connected with the movable end of the toggle driving source 121. The toggle driving source 121 is assembled above the conveying belt 11 through an iron core feeding supporting plate 123, and the iron core feeding supporting plate 123 is fixed on the workbench 6; the toggle member 122 is a strip structure, the upper end thereof is connected with the movable end of the toggle driving source 121, and the other end thereof can be abutted against the iron core member 8. Because the iron core member 8 is long and has a large weight, the common clamping structure is difficult to effectively clamp the iron core member, the poking member 122 is arranged to poke and shift the iron core member, the iron core member is simple and practical, and the iron core member 8 can be ensured to be quickly moved to a preset position.

As shown in fig. 6 and 7, the positioning assembly 13 includes an L-shaped plate 131 for placing the core member 8, a vertical positioning member 132 for limiting the moving range of the core member 8, an end positioning member 133, the positioning moving plate 14, and a driving source; the L-shaped plate 131 is mounted on the upper surface of the positioning moving plate 14. The loading plane of the L-shaped plate 131 is flush with the plane of the conveyor belt 11. The core members 8 are pushed from the conveying belt directly into the loading plane of the L-shaped plate 131 with the side surfaces of the core members 8 being abutted against the side walls of the L-shaped plate 131, so that the L-shaped plate 131 has sufficient lateral supporting force for the core members 8.

The driving source includes a down cylinder 134 for driving the vertical positioning member 132 to reciprocate, and an end cylinder 135 for driving the end positioning member 133 to reciprocate. The positioning assembly 13 is provided with a stopper at one side of the notch of the L-shaped plate 131, the lower end of the stopper is connected with a pushing source, and the pushing source drives the stopper to reciprocate, so that the L-shaped plate 131 forms a U-shaped structure to wrap the core member 8 therein, thereby effectively positioning the core member 8, and simultaneously, the stopper can extend out and retract, so as to limit the placement range of the core member and avoid the position deviation of the core member. When the bushing is assembled with the iron core piece, the stopper needs to retract in time, so that the assembling side face of the iron core piece is exposed, the assembly with the bushing is realized, the structure is simple and practical, and the scheme is feasible. When the iron core member and the lining member are assembled, the end portion of the iron core member needs to be limited, so that the iron core member is prevented from moving longitudinally, after the assembly is completed, the iron core member needs to be moved away from the end portion of the positioning moving plate, namely, the iron core member moves longitudinally, in order to achieve the longitudinal positioning and the longitudinal movement of the iron core member, the movable end of the end portion air cylinder 135 is fixedly connected with the end portion positioning member 133, and the fixed end of the end portion air cylinder is fixedly connected with the positioning moving plate.

Since the core member is placed in the L-shaped plate, when the core member is assembled with the bushing, the stopper should be retracted, and in order to ensure that the position of the core member does not change, the core member can only be positioned from top to bottom, so that the down-pressing cylinder 134 is fixed above the L-shaped plate 131 through a support frame 136, and the movable end of the down-pressing cylinder 134 is fixedly connected with the vertical positioning member 132. The vertical positioning element 132 is provided with a plurality of spring posts 1321, and the spring posts 1321 extend out of the lower end surface of the vertical positioning element 132 and can abut against the iron core element 8. Since the bush needs to be assembled from the side surface of the core member and partially covers the core member, the assembly surface of the core member is not shielded by pressing the core member with the spring leg, and the automatic assembly of the bush and the core member is completed.

The upper end of the supporting frame 136 is provided with a downward pressing fixing plate 137 which is screwed with the downward pressing cylinder 134, and the lower end of the supporting frame is connected with the positioning moving plate 14. Two sides of the positioning moving plate 14 are connected with the workbench 6 in a sliding mode through positioning guide rails, the middle position of the positioning moving plate is connected with a lead screw nut of the ball screw assembly, and the lead screw nut is screwed in and out on a lead screw. The ball screw assembly is erected on the workbench 6 through a positioning bracket. Because a plurality of bushings are required to be assembled on one side surface of the iron core piece, the quantity of the bushings in one-time feeding is limited, the assembling requirement of the iron core piece cannot be met, and the assembling problem of the iron core piece and the plurality of bushings can only be solved by adopting a mode of repeatedly feeding the bushings, the ball screw assembly is arranged longitudinally, and accurately controls the positioning moving plate to move in a stepping mode until the assembling of the iron core piece and the plurality of bushings is completed. The positioning assembly 13 is provided with a sensor at one end close to the conveyor belt, said sensor being fixed on the work table 6 by means of a sensing support.

The assembling mechanism 3 is divided into a front assembling mechanism 3A for assembling the bush 7 from the front of the iron core piece 8 and a back assembling mechanism 3B for assembling the bush 7 from the back of the iron core piece 8, a transferring mechanism 4 is arranged between the front assembling mechanism 3A and the back assembling mechanism 3B, and the transferring mechanism 4 drives the iron core piece 8 and the bush 7 which is assembled from the front to move from the front assembling mechanism 3A to the back assembling mechanism 3B; the front assembling mechanism 3A and the back assembling mechanism 3B are oppositely arranged and are spaced at a certain distance. The invention is provided with the front assembling mechanism 3A and the back assembling mechanism 3B to realize the assembly of the bushings 7 on the two sides of the iron core piece 8, and the moving and carrying mechanism 4 to complete the position movement of the iron core piece 8, and has simple and practical structure.

The front assembling mechanism 3A and the back assembling mechanism 3B are respectively provided with a clamping component 32 for clamping the bush 7 and a pressing component 31 for pushing the bush 7 to move. The vibratory pan is connected to the clamp assembly 32 by a vibratory ramp 22.

The clamping assembly 32 comprises a bush jacking driving source 323, a jacking piece 324, a bush pressing driving source 321 and a pressing piece 322; the vertical setting of bush jacking driving source 323, its expansion end and jacking 324 fixed connection, the expansion end and the holding down piece 322 fixed connection of bush holding down driving source 321, holding down piece 322 coincides mutually with the vertical projection of jacking 324. The bushing jacking driving source 323 is fixed on the workbench 6 through a jacking fixing plate.

The bush pushes down the driving source 321 and fixes on the assembly support frame 34 through the connecting plate 35, and its expansion end is vertical to be set up and is connected with the lower pressure piece 322, the lower pressure piece 322 passes through slide rail and assembly support frame 34 sliding connection.

As shown in fig. 8 and 9, the stepped groove 3241 is formed in the upper end face of the jacking piece 324, the cross-sectional shape of the stepped groove 3241 is matched with that of the lower end of the bushing 7, and according to the shape characteristics of the bushing, the jacking piece is provided with the stepped groove to accommodate the end of the bushing, so that the bushing is preliminarily positioned, and the structure is simple and practical. The lower end of the lower pressing member 322 is provided with a claw-shaped structure 3221. The jaw-to-jaw gap width c of the jaw-like structure 3221 matches the width d of the bushing 7. The lower pressing piece moves downwards, the claw-shaped structure of the lower pressing piece is abutted to the lining, and the lining is pressed into a gap of the claw-shaped structure, so that the lining is positioned.

As shown in fig. 10, 11 and 12, the press-in assembly 31 includes a socket plate 312 for inserting the bushing 7, and a press-in driving source 311 for driving the socket plate 312 to translate. The socket 316 is a notch groove which is through up and down, the upper end of the socket is provided with a slope surface 3161, the side surface of the socket is provided with a chamfer structure 3162, and the socket transversely move the socket bush to enable the bush to be embedded into the socket, so that the socket board drives the bush to move synchronously without a complex manipulator structure and a discharging unit.

The pressing plate 315 is arranged above the plug board 312, the spacer 317 is arranged between the pressing plate 315 and the plug board 312, the pressing plate moves downwards to press the bushing on the plug board, and the spacer is arranged to prevent the bushing from being damaged by pressure due to the fact that the pressing plate moves in an overlarge range, so that a certain gap is kept between the pressing plate 315 and the plug board 312.

The press-in driving source 311 is a rotating motor, and is connected to the socket plate 312 through a ball screw assembly. The front end of the insertion plate 312 is provided with a plurality of insertion ports 316, and the shapes of the insertion ports 316 are matched with the shape of the bushing 7. A press-in guide rail fixing plate 314 is arranged below the ball screw assembly, the press-in guide rail fixing plate 314 is provided with a slide rail and is in sliding connection with a press-in supporting plate 313, and the press-in supporting plate 313 is fixedly connected with a screw nut. Because the plugboard needs to drive the bush to move transversely, because the bush and the iron core piece have a position difference, in order to avoid damage when the bush and the iron core piece are assembled, the moving speed of the plugboard is slower when the bush is assembled, and after the assembly is completed, in order to ensure the accurate assembly of the bush and the iron core piece, the pressure needs to be increased to extrude the bush again, so that the pressing-in driving source is a rotating motor with a ball screw assembly, the pressure can be accurately controlled, and the assembly requirement of the bush and the iron core piece is met.

The lower end surface of the press-in guide rail fixing plate 314 is fixed on the workbench 6, and the end part of the press-in guide rail fixing plate is fixedly connected with a motor limiting fixing plate. The upper end surface of the press-in support plate 313 is connected with the plug-in board 312 and the reserved cylinder.

As shown in fig. 13 and 14, an embodiment of a guide assembly is added:

the adjacent clamp assembly 32 is provided with a guide assembly 33 for limiting the moving range of the bush 7, and the guide assembly 33 is provided with a guide and a guide driving source for driving the guide to reciprocate. The guide piece is vertically arranged, and a plurality of claw parts are arranged at the lower end of the guide piece.

The guide assembly 33 and the clamping assembly 32 are arranged side by side and fixed on the working plate through an assembly support frame 34, a stop cylinder is arranged at the upper end of the assembly support frame 34 adjacent to the clamping assembly 32, the movable end of the stop cylinder is fixedly connected with a stop guide, and the lower end of the stop guide is provided with a stop finger for inserting into the cavity of the bushing 7.

The guide assembly 33 includes an upper guide 332 and a lower guide 334, the upper and lower guides are respectively connected to a guide driving source, the upper guide driving source 331 is erected on the assembly support frame 34 through the connecting plate 35, the movable end of the upper guide driving source 331 is connected to the upper guide 332, and the upper guide 332 and the assembly support frame 34 are connected through a slide rail.

The lower guide driving source 333 is fixed to a lower guide support plate, one side of which is fixed to the table 6 by a lower guide fixing plate and the other side of which is provided with a guide rail. The lower guide 334 is slidably coupled to the guide rail through a slide groove at a side thereof, and has an end connected to a movable end of the lower guide driving source 333.

As shown in fig. 15 and 16, the transfer mechanism 4 includes a finger unit 41 capable of gripping the core member 8, a traverse unit 42 for driving the finger unit 41 to reciprocate, and a vertical unit 43. The clamping finger assembly 41 is provided with a clamping finger 411 and a clamping finger driving source 412 for driving the clamping finger 411 to clamp repeatedly, and the front end of the clamping finger 411 is provided with a notch. The longitudinal moving assembly 43 is provided with a transferring moving plate 431, two sides of the lower end of the transferring moving plate 431 are connected with the workbench 6 through slideways, the upper end of the transferring moving plate 431 is provided with a slide rail which is connected with a transferring connecting plate 421 of the transverse moving assembly 42 in a sliding way, and one end part of the transferring moving plate far away from the feeding assembly 12 is connected with a transverse moving cylinder 422 of the transverse moving assembly 42. The transverse moving assembly drives the clamping finger assembly to transversely move to be close to the iron core piece in the positioning assembly for clamping, then the transverse moving assembly drives the clamping finger assembly to retreat to be separated from the positioning assembly, and further, the longitudinal moving assembly drives the clamping finger assembly and the iron core piece to move to the reverse side assembling mechanism, so that the iron core piece is moved from the front side assembling mechanism to the reverse side assembling mechanism, and the scheme is feasible.

One end of the transfer connecting plate 421 close to the feeding component 12 is provided with a clamping finger component 41, and the end far away from the clamping finger component is connected with the movable end of the transverse moving cylinder 422.

The transferring mechanism 4 transfers the iron core member 8 to the position of the back assembling mechanism 3B, the back lining feeding mechanism 2A feeds the lining, and then the back assembling of the iron core member 8 is performed, the assembling process is consistent with the front assembling process, which is not described herein again, and the assembling of the iron core member and the lining is completed.

The blanking mechanism 5 comprises a chuck component used for clamping the assembled iron core piece 8 to move, a lifting component used for driving the chuck component to lift, and a translation component used for driving the chuck component to translate. The lifting assembly drives the chuck assembly to descend and enter the positioning assembly, the chuck assembly clamps the iron core pieces which are assembled, further, the lifting assembly drives the chuck assembly to ascend and separate from the positioning assembly, further, the translation assembly drives the chuck assembly and the iron core pieces to move, the iron core pieces are placed on the blanking conveying belt, blanking is completed, the structure is simple and practical, and the scheme is feasible.

As shown in fig. 17 and 18, the embodiment of the invention in which the anti-seize assembly is added to prevent the bush from being seized on the plugboard:

the anti-blocking assembly comprises an anti-blocking driving source 319 fixed on the press-in supporting plate 313, an anti-blocking plate 318 fixedly connected with the movable end of the anti-blocking driving source 319, and an anti-blocking member 3181 fixed on the anti-blocking plate 318. The insertion board 312 has a plurality of longitudinally through slots, through which a plurality of anti-nesting members 3181 are inserted. The anti-sleeve member 3181 is a rod-shaped structure, and the end part of the anti-sleeve member can extend out and retract in the slot hole.

When the inserting plate 312 drives the bushing 7 to be pressed into the iron core member, the inserting plate 312 moves backward to be reset, the anti-nesting driving source 319 drives the anti-nesting plate 318 to further drive the anti-nesting member 3181 to extend out of the slot hole to push the bushing out of the inserting plate 312, so that the bushing is prevented from being clamped on the inserting plate 312 and being brought back by the inserting plate 312.

The driving source and the pushing source can be a cylinder, a magnetic cylinder, a linear motor and a rotating motor provided with a ball screw assembly. The air cylinder is optimized, and the control is simple, economical and practical.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An automated assembly method of a bushing and a core piece, comprising the steps of:

secondly, feeding the iron core piece (8): placing the core member (8) on a conveyor belt (11), and transporting the core member (8) to a predetermined position;

thirdly, feeding the bushing (7): the lining (7) is placed in a vibration disc (21) and is conveyed to a front assembling position through direct vibration;

fourthly, assembling the iron core piece and the lining: clamping the bush (7) up and down to enable the bush (7) and the iron core piece (8) to be in the same plane, and further pushing the bush (7) to translate and be inserted with the iron core piece (8);

an inserting port matched with the shape of the bushing (7) is arranged, the bushing (7) is inserted through the inserting port, so that the clamping in the vertical direction is released, and the bushing (7) is driven to move horizontally through the inserting port;

fifthly, after the front surface of the iron core piece (8) is assembled, moving the iron core piece (8) to a back surface assembly position, and performing back surface assembly on the iron core piece (8) to complete the assembly of the iron core piece and the bush;

the conveying belt (11) drives the iron core piece (8) to move transversely, and when the iron core piece is conveyed to the end of the conveying belt (11), the end of the iron core piece (8) is pushed to move longitudinally;

the end part of the slide way which moves longitudinally of the iron core piece (8) is pre-positioned before the iron core piece (8) moves longitudinally, and the side surface of the iron core piece (8) is positioned after the iron core piece (8) moves longitudinally;

after the end positioning and the side positioning are finished, the iron core piece (8) is pressed and positioned from top to bottom, and then the end positioning and the side positioning are released;

the iron core piece and the bush are loaded in a staggered mode, and a certain distance is reserved between the iron core piece and the bush in the vertical direction when the iron core piece and the bush move;

guiding the translational bush (7) to ensure that the assembling structures of the bush (7) and the iron core piece (8) are positioned on the same plane;

after the bush (7) is inserted into the iron core member (8), the bush (7) is pushed into the iron core member (8) again by using a large pushing force, so that the firm assembly of the bush and the iron core member is ensured; the number of the bushings (7) needing to be assembled on the side surface of a single iron core piece (8) is n, n/m bushings (7) can be assembled at one time, the assembling structure position of the bushings (7) is unchanged, complete assembly on the side surface of the iron core piece (8) is realized by moving the position of the iron core piece (8), and m is a positive integer and is a divisor of n;

after the iron core piece and the bush are assembled once, the iron core piece (8) translates n/m stations, and after the iron core piece (8) is assembled on the front side, the iron core piece (8) is moved to the assembly position on the back side in an inserting and dragging mode.