CN114614636B

CN114614636B - Centering device for motor stator and rotor punching sheet production

Info

Publication number: CN114614636B
Application number: CN202210511475.1A
Authority: CN
Inventors: 张运昌; 陈忠; 马建; 王森; 盛世龙; 李强; 许百宏; 刘现平
Original assignee: Sichuan Fusheng Electric Appliance Co ltd
Current assignee: Sichuan Fusheng Electric Appliance Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-07-19
Anticipated expiration: 2042-05-12
Also published as: CN114614636A

Abstract

The invention discloses a centering device for motor stator and rotor punching production, which comprises a workbench, wherein the left side of the upper end and the right side of the upper end of the workbench are both fixedly provided with a portal, the upper parts of the inner side surfaces of the two portals are both fixedly provided with lifting cylinders, the output ends of the two lifting cylinders are both fixedly provided with a connecting frame, the lower part of the inner side surface of the connecting frame is fixedly provided with a connecting mechanism, an ink storage mechanism is arranged on the connecting mechanism in an inserting manner, the lower end of the ink storage mechanism is detachably provided with a mark printing mechanism, and the left side of the upper end and the right side of the upper end of the workbench are both movably provided with a centering mechanism. The invention can realize the position alignment and centering of the stator and rotor punching piece, is convenient for operators to quickly master, improves the production efficiency, is easy to find the centering mark on the stator and rotor punching piece, can accurately determine the center of the centering mark, and has high-quality identification and positioning effects when rotor slots and stator slots are processed.

Description

Centering device for motor stator and rotor punching sheet production

Technical Field

The invention relates to the technical field of motor production, in particular to a centering device for motor stator and rotor punching production.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The motor stator is a fixed part in the motor, is formed by overlapping silicon steel sheets and is embedded with a coil winding, and the winding generates a rotating magnetic field to push the rotor to rotate. The motor punching sheet is formed by punching silicon steel sheets with the thickness of 0.3mm into punching sheets with different specifications, is suitable for stators and rotors of motors with different powers, and has a wide application range, and a stepping motor, an alternating current/direct current motor, a speed reduction motor, an outer rotor motor, a shaded pole motor, a synchronous asynchronous motor and the like are widely used. In the existing motor rotor punching sheet, when the existing stator and rotor punching sheet is punched and processed in the processing process, the relative position precision requirements of each rotor slot and each stator slot are very high, the slots are gradually punched by means of a central positioning datum point, if the central positioning datum point is deviated, the slot holes cannot be in one-to-one correspondence, and in the processing process, certain processing position deviation exists, so that the product quality of the stator and rotor punching sheet is greatly influenced.

Current patent (publication No. CN105406661A) a centring means for production of motor stator-rotor punching, including conveying mechanism and centering mechanism, the last conveyer belt that is equipped with of conveying mechanism, conveying mechanism's both sides all are equipped with the support frame, be equipped with work platform between the support frame, sliding connection has first fixed plate and second fixed plate on work platform's the bottom surface, all be equipped with the jack catch on the bottom surface of first fixed plate and second fixed plate, be equipped with actuating mechanism on work platform's the bottom surface, actuating mechanism connects first fixed plate, centering mechanism rotates to be connected on work platform, be equipped with the head rod between centering mechanism and the first fixed plate, be equipped with the second connecting rod between centering mechanism and the second fixed plate. In the patent, when a stator and rotor punching piece is clamped and centered, two clamping jaws are used for clamping and fixing, in order to ensure the centering precision, the circle center of the stator and rotor punching piece needs to be just positioned under a centering mark rod, however, the clamping surface of the clamping jaw used for clamping in the device is a plane, although the workpiece can be clamped, the circle center of the stator and rotor punching piece cannot be just positioned under the centering mark rod and the possibility of separation exists during clamping, in order to ensure that the circle center of the stator and rotor punching piece is just positioned under the centering mark rod, the conveying speed and the start and stop of a conveying mechanism need to be accurately controlled, the conveying stability of the conveying mechanism needs to be ensured, and in order to ensure that the stator and rotor punching piece is just stopped under the centering mark rod when the conveying mechanism is temporarily stopped, the fault tolerance of a control system used by the patent is insufficient, once the stator and rotor punching piece workpiece is not controlled in place and is not accurately stopped under the centering marking rod, the situation of inaccurate centering can occur.

The prior patent (publication No. CN 112653304B) discloses a centering device for motor stator and rotor punching production, which comprises an operation table, wherein two support plates are symmetrically and fixedly installed at the top end of the operation table, a limiting mechanism is fixedly installed on the opposite inner side walls of the two support plates, a suspension plate is fixedly installed at the top ends of the two support plates together, an air cylinder is installed on the suspension plate, a pressing plate is fixedly installed at one end, far away from the suspension plate, of the output end of the air cylinder, two empty slots are symmetrically formed in the top end of the operation table, a transverse clamping plate is slidably installed in each empty slot, two transverse cavities are symmetrically formed in the operation table, two lifting slots are symmetrically formed in the operation table, a spring is fixedly installed at the bottom of each lifting slot, a lifting bracket is fixedly installed at the top end of each spring, and four support legs are symmetrically and fixedly installed at the bottom end of the operation table; this patent discloses a utilize single cylinder to realize that double-jaw simultaneous movement and accomplish stator towards piece centre gripping fixed technical scheme of piece, this patent is when using, will place the stator and rotor towards the piece on two lift brackets in advance, and will guarantee that stator and rotor towards the piece work piece just to be located the positive centre of four limiting plates, just can guarantee that the cylinder can promote the clamp plate smoothly and push down the stator and rotor work piece, and in case take place the skew, in the clamp plate pushes down the in-process, just probably bump between limiting plate and the stator and rotor towards the piece, influence centering operation, and in order to guarantee not appear the collision condition or reduce the probability that the collision takes place as far as possible, just need propose high operating requirement to the operator, this just makes the operator can't get up to the hand fast, influence production efficiency.

Disclosure of Invention

The invention mainly aims to provide a centering device for producing motor stator and rotor punching sheets, which can realize the position alignment and centering of stator and rotor punching sheet workpieces, is convenient for operators to quickly master, improves the production efficiency, can easily find the centering marks on the stator and rotor punching sheet workpieces, can accurately determine the centers of the centering marks, and has high-quality identification and positioning effects when rotor grooves and stator grooves are machined.

In order to achieve the purpose, the invention adopts the technical scheme that:

a centering device for motor stator and rotor punching production comprises a workbench, wherein gantries are fixedly mounted on the left side of the upper end and the right side of the upper end of the workbench, lifting cylinders are fixedly mounted on the upper portions of the inner sides of the two gantries, a connecting frame is fixedly mounted on the output ends of the two lifting cylinders together, the connecting frame is of a structure shaped like a Chinese character 'pi', a connecting mechanism is fixedly mounted on the lower portion of the inner side of the connecting frame, an ink storage mechanism is installed on the connecting mechanism in a penetrating manner and is arranged in a T-shaped structure, the middle portion of the lower end of the ink storage mechanism extends to the position below the connecting mechanism, a mark printing mechanism is detachably mounted on the lower end of the ink storage mechanism, an air guide mechanism and a pressing mechanism are detachably mounted on the lower end of the connecting mechanism, the air guide mechanism is sleeved on the outer side of the mark printing mechanism and is communicated with the connecting mechanism, the pressing mechanism is provided with four clamping cylinders which are distributed in an annular array by taking the air guide mechanism as a center, the middle parts of the lower ends of the two door frames are fixedly provided with the clamping cylinders, the output ends of the two clamping cylinders are fixedly provided with the transmission mechanisms, the left side of the upper end and the right side of the upper end of the workbench are movably provided with the centering mechanisms, the two centering mechanisms are respectively positioned below the two transmission mechanisms and are respectively in transmission connection with the two transmission mechanisms, the middle part of the upper end of the workbench is fixedly provided with the placing table which is positioned under the pressing mechanism, the left end and the right end of the workbench are respectively provided with a groove, the upper sides of the groove bottom surfaces of the two grooves are respectively provided with a mounting groove which penetrates through the upper end surface of the workbench, the centering mechanisms are movably connected with the grooves and the mounting grooves, and the connecting mechanism is internally provided with a circuit board and a heating pipe, the heating pipe is fixed on the circuit board;

the connecting mechanism comprises a connecting pipe fixedly arranged at the lower part of the inner side surface of the connecting frame, the upper end and the lower end of the connecting pipe are respectively and fixedly provided with an upper connecting ring and a lower connecting ring, the upper end of the upper connecting ring is penetrated and fixedly provided with an air duct, the air duct is provided with four or more than four inner holes of the connecting rings which are distributed in an annular array manner as the center, the four air ducts are all fixedly provided with fans and dust filter cotton, the dust filter cotton is positioned above the fans, the lower end of the lower connecting ring is penetrated and fixedly provided with inserting pipes, the lower end of the lower connecting ring is positioned at the outer sides of the inserting pipes and is fixedly provided with an inner threaded pipe, and the inserting pipes and the inner threaded pipe are both provided with four inner holes of the connecting rings which are distributed in an annular array manner as the center; a temperature sensor is fixedly inserted into the connecting pipe, and the circuit board is fixed at the upper end of the lower connecting ring;

the printing ink storage mechanism comprises an ink storage cup, wherein a second internal thread pipe is fixedly mounted at the lower end of the ink storage cup and communicated with the ink storage cup, a cross-shaped pressing frame is fixedly mounted on the upper side of the inner wall surface of the second internal thread pipe, a cover plate is movably clamped at the upper end of the ink storage cup, a one-way air valve is fixedly mounted at the upper end of the cover plate in an inserting mode, a flange ring is fixedly sleeved at the upper part of the outer cylindrical surface of the ink storage cup, the ink storage cup is nested in an inner hole of an upper connecting ring and is in contact with the lower end of the lower connecting ring, the second internal thread pipe penetrates through the inner hole of the lower connecting ring and extends to the lower part of the lower connecting ring, and the flange ring is connected with the upper end of the upper connecting ring through a bolt;

the mark printing mechanism comprises an installation rod, the installation rod is of a T-shaped rotary body structure, the lower portion of an outer cylindrical surface of the installation rod contracts to the center of the installation rod to form a conical shape, a second groove is formed in the middle of the upper end of the installation rod, a placement groove is formed in the bottom surface of the second groove, the placement groove penetrates through the lower end face of the installation rod, an impression rod and an ejection spring are movably arranged in the placement groove, the ejection spring is fixedly installed at the upper end of the impression rod, the upper portion of the outer cylindrical surface of the installation rod is connected with the inner wall of a second inner threaded pipe in a threaded mode, the pressing frame is of a T-shaped structure, and the middle of the lower end of the pressing frame extends into the second groove and contacts with the upper end of the ejection spring.

As a further improvement of the above scheme, the middle of the cylindrical wall surface of the placing groove is provided with four ink storage grooves which are distributed in an annular array, the four ink storage grooves are provided with guide grooves on the wall surface of the ink storage grooves, the four ink guide grooves are provided on the wall surface of the guide grooves, the ink storage grooves, the guide grooves and the ink guide grooves are communicated with the second groove, the stamping rod comprises ejection blocks, the ejection blocks are fixedly connected with the lower ends of the ejection springs, guide blocks are fixedly mounted on the outer cylindrical surface of the ejection blocks, and the guide blocks are provided with four guide blocks which are respectively arranged in the four guide grooves.

As a further improvement of the above scheme, the lower extreme fixed mounting of ejecting piece has the slide bar, the lower extreme fixed mounting of slide bar has the reposition of redundant personnel pole, the lower extreme fixed mounting of reposition of redundant personnel pole has the connecting block, the lower extreme fixed mounting of connecting block has the guide post, the diameter of slide bar is greater than the diameter of ejecting piece, the slide bar is in movable contact with the groove wall face of standing groove, reposition of redundant personnel pole and guide post are the toper structure.

The air guide mechanism comprises four air guide pipes which are respectively inserted and fixedly installed in four insertion pipes, the lower ends of the four air guide pipes are jointly and fixedly provided with a ring pipe, an air outlet pipe is fixedly installed on the lower side of the outer surface of the ring pipe, and the air outlet pipes are provided with a plurality of air outlet pipes which are distributed in an annular array mode by taking the mark printing mechanism as the center; the pressing mechanism comprises a screw rod in threaded connection with the first internal thread pipe, a sleeve is fixedly mounted at the lower end of the screw rod, a pressing rod is movably mounted at the lower end of the sleeve in an inserting mode, a pressing plate is fixedly mounted at the lower end of the pressing rod, and a pressure spring is fixedly connected between the upper end of the pressing plate and the sleeve.

Drive mechanism includes the connecting plate, connecting plate fixed mounting is at the output of centre gripping cylinder, the lower extreme fixed mounting of connecting plate has the push pedal, the lower extreme fixed mounting of push pedal has the driving plate No. one, fixed mounting has the driving frame on the lateral surface of push pedal, the equal fixed mounting of lower extreme front side and lower extreme rear side of driving frame has the driving plate No. two the equal fixed mounting of one end that the driving frame was kept away from to No. two driving plates has the guide arm, the lower terminal surface of driving plate and the lower terminal surface of driving plate No. two all set up and are the inclined plane that leans out 45 degrees, the guide arm is vertical setting.

Centering mechanism includes the transfer line No. one, set up around the transfer line is, down fixed mounting has connecting rod, slide and guide bar in proper order from last on the medial surface of a transfer line, the one end that a transfer line was kept away from to the connecting rod has the shell fragment through axle movable mounting, the equal fixed mounting in both ends has centering spring, two around the connecting rod the equal fixed mounting in one end that the connecting rod was kept away from to centering spring has the auxiliary block, the cover is equipped with reset spring on the guide bar, a transfer line is T shape structure, the lower extreme middle part and the mounting groove swing joint of a transfer line, the slide contacts with the up end movable contact of workstation, the guide bar alternates swing joint with the groove wall of mounting groove, reset spring fixed mounting is between the tank bottom surface of mounting groove and the medial surface of a transfer line.

As a further improvement of above-mentioned scheme, the lower extreme front side and the lower extreme rear side of connecting rod all have a supporting rod, two through axle movable mounting the one side that the connecting rod was kept away from to the upper end of supporting rod all has a centre gripping gyro wheel through axle movable mounting, both sides all are provided with the transfer line No. two around the connecting rod, No. two the transfer line is and controls the setting, No. two the transfer line alternates movable mounting on the transfer line No. one, two fixed mounting has the transmission piece on the outside terminal surface of No. two transfer lines, common fixed mounting has reset spring No. two between the outside and the transmission piece that the transmission piece is located a transfer line.

As the further improvement of above-mentioned scheme, two the lower extreme of No. two transfer lines passes through the axle respectively with two supporting rod sliding connection, two the supporting rod is the V-arrangement setting, two centering spring is the V-arrangement setting, the lateral surface swing contact of supplementary piece and shell fragment, the up end outside of transfer line sets up the inclined plane that is the downward sloping and is connected with the inclined plane transmission on the driving plate, the up end outside of driving block sets up the inclined plane that is the downward sloping and is connected with the inclined plane transmission on No. two driving plates.

As a further improvement of the above scheme, the surface of the auxiliary block contacting with the elastic pieces is a curved surface, the elastic pieces are in an arc-shaped sheet structure, the center line of the printing mechanism is marked by the vertical line where the circle center of the lower end surface of the guide rod is located, the center line is vertically intersected with the connecting line of the arc centers of the two elastic pieces, and the intersection point is the circle center of the placing table.

On the basis of the scheme, the upper end of the placing table is provided with a bracket which is arranged in the front and at the back, a transmission belt is movably arranged in the bracket, and the upper end surface of the transmission belt is flush with the upper end surface of the placing table.

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

1. in the invention, a placing table is arranged for placing a stator and rotor punching piece, a centering mechanism, a transmission mechanism and a clamping cylinder are arranged on two sides of the placing table, the centering mechanism is in transmission connection with the transmission mechanism, the transmission principle is bevel transmission, a first transmission plate and a second transmission plate on the transmission mechanism are respectively in transmission connection with a first transmission rod and a transmission block on the centering mechanism, the first transmission plate is firstly in bevel transmission with the first transmission rod to push the whole centering mechanism to move towards the stator and rotor punching piece, so that a spring plate is contacted with the stator and rotor punching piece, when the first transmission plate is just in transmission connection with the first transmission rod and a push plate is just in contact with the outer side surface of the first transmission rod, the second transmission plate is just in transmission connection with the transmission block to push the second transmission rod to move towards the stator and rotor punching piece, so that the clamping rod rotates towards the stator and rotor punching piece, the clamping rollers are further contacted with the stator and rotor punching piece, so that the four clamping rollers jointly complete clamping and fixing of the stator and rotor punching piece, and in the process, the push plate moves downwards to keep the position of the first transmission rod unchanged, so that the elastic sheet keeps clamping the stator and rotor punching piece; in the process of clamping the stator and rotor punching workpieces, the left and right spring plates firstly clamp the stator and rotor punching workpieces, the spring plates can swing on the connecting rod, and the centering springs are arranged in a V shape on two sides of the spring plates, when the spring plates swing to compress and deform the centering springs, the spring plates can automatically align in the process of contacting with the stator and rotor punching workpieces by utilizing the elastic potential energy of the spring plates per se, the positions of the spring plates are adjusted, so that the spring plates can be quickly attached to the peripheral side surfaces of the stator and rotor punching workpieces when clamping the stator and rotor punching workpieces and play a role in preliminarily adjusting the positions of the stator and rotor punching workpieces, meanwhile, the movable spring plates can be in flexible contact when contacting with the stator and rotor punching workpieces, better in contact and clamping, so that the stator and rotor workpieces can be aligned through the swinging spring plates even if the centers of the stator and rotor punching workpieces are not aligned with the center of a placing table, and small-amplitude position deviation occurs, the center position of the stator and rotor punching piece workpiece is accurately adjusted to the center position required in centering, so that the center of the stator and rotor punching piece workpiece is aligned with the center of the placing table, the clamping precision is ensured, the operation requirement on an operator can be reduced, the operator can conveniently and quickly get on the hand, and the production efficiency is improved;

2. according to the invention, by arranging the centering mechanism, the mark printing mechanism and the workbench, a vertical line in which the circle center of the lower end face of the guide rod in the mark printing mechanism is located is a central line of the mark printing mechanism and is vertically intersected with a connecting line of the arc centers of the two elastic sheets, the intersection point is the circle center of the placing platform, and the intersection points of opposite connecting lines of the four clamping rollers are also located on the central line, so that the center of a stator and rotor punching sheet workpiece after clamping and fixing, the center of the placing platform and the circle center of the lower end face of the guide rod can be ensured to be located on the same vertical line, and the centering precision is ensured;

3. in the invention, by arranging a mark printing mechanism, in the pull-down process of a lifting cylinder, after a guide rod moves downwards to contact with a stator and rotor punching piece workpiece, an installation rod moves downwards continuously, a guide block moves upwards along a guide groove, the lower end face of a slide rod is positioned above the groove bottom surface of the guide groove, and the lower end face of the guide rod and the lower end face of the installation rod are positioned on the same plane, the minimum distance between a shunt rod and a placing groove is controlled to be 0.5mm-1mm, at the moment, ink in the ink guide groove can flow down from a narrow gap between the shunt rod and the placing groove to generate a shunt phenomenon, the ink is divided into two parts, one part of the ink flows down along the groove wall surface of the placing groove and falls on the stator and rotor punching piece workpiece to form an ink ring with a larger diameter, the other part of the ink flows through the surface of the shunt rod, the surface of a connecting block and the surface of the guide rod and finally falls on the stator and rotor punching piece, thereby forming an ink ring with a smaller diameter on the stator and rotor punching piece, the circle centers of the two ink rings are the same circle center and are the same point with the circle center of the stator and rotor punching piece workpiece, so that the function of determining the circle center of the stator and rotor punching piece workpiece is realized, through the marks of the concentric double rings, when a rotor groove and a stator groove are machined, a centering mark is easy to find, and the high-quality identification and positioning effects are achieved;

4. according to the invention, the connecting mechanism, the air guide mechanism, the heating pipe and the temperature sensor are arranged, the heating pipe can heat air in the connecting mechanism, the fan in the connecting mechanism can blow hot air into the air guide mechanism, so that the hot air is discharged through the air outlet pipes on the air guide mechanism, a gas atmosphere with higher temperature is formed outside the ink ring, the drying of the ink ring is accelerated, blown hot air can be directly blown on ink on a stator and rotor punching piece workpiece, and the ink is not easily dispersed in the process of heating and drying the ink, so that the ink marking effect is ensured;

5. according to the centering device, the front bracket and the rear bracket can be arranged at the upper end, the transmission belt is movably arranged in the brackets, the upper end surface of the transmission belt is flush with the upper end surface of the placing table, the transmission belt is used for conveying stator and rotor punching workpieces, the centered stator and rotor punching workpieces can be conveyed away from the centering device, the stator and rotor punching workpieces to be centered are conveyed into the centering device for centering, continuous centering of the stator and rotor punching workpieces is achieved, and the production efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a partial sectional view of the structure;

FIG. 3 is a schematic structural view of the connecting mechanism and the air guiding mechanism;

FIG. 4 is a schematic view of the connection mechanism and the ink storage mechanism;

FIG. 5 is a schematic view of the structure of the logo printing mechanism;

FIG. 6 is a schematic view of the overall structure of the impression cylinder;

FIG. 7 is a schematic connection diagram of the air guiding mechanism, the pressing mechanism and the connecting mechanism;

FIG. 8 is a schematic structural view of the transmission mechanism;

FIG. 9 is a schematic view of the centering mechanism;

fig. 10 is a schematic overall structure diagram of the second embodiment.

In the figure: 1. a work table; 2. a gantry; 3. a lifting cylinder; 4. a connecting frame; 5. a connecting mechanism; 6. an ink storage mechanism; 7. a mark printing mechanism; 8. an air guide mechanism; 9. a pressing mechanism; 10. a clamping cylinder; 11. a transmission mechanism; 12. a centering mechanism; 13. a placing table; 14. a first groove; 15. mounting grooves; 16. a temperature sensor; 17. a circuit board; 18. heating a tube; 19. a conveyor belt; 131. a bracket; 51. a connecting pipe; 52. an upper connecting ring; 53. a lower connecting ring; 54. an air duct; 55. a first internally threaded tube; 56. inserting a tube; 57. a fan; 58. dust filtration cotton; 61. an ink storage cup; 62. a second internal threaded tube; 63. pressing a frame; 64. a flange ring; 65. a cover plate; 66. a one-way air valve; 71. mounting a rod; 72. a second groove; 73. a placement groove; 74. a coining lever; 75. ejecting a spring; 76. a guide block; 731. an ink storage groove; 732. a guide groove; 733. an ink guide groove; 741. ejecting a block; 742. a slide bar; 743. a diverter rod; 744. connecting blocks; 745. a guide rod; 81. an air guide pipe; 82. a ring pipe; 83. an air outlet pipe; 91. a screw; 92. a sleeve; 93. a pressure lever; 94. pressing a plate; 95. compressing the spring; 111. a connecting plate; 112. pushing the plate; 113. a first transmission plate; 114. a transmission frame; 115. a second transmission plate; 116. a guide bar; 121. a first transmission rod; 122. a connecting rod; 123. a slide plate; 124. a guide bar; 125. a spring plate; 126. a centering spring; 127. an auxiliary block; 128. a first return spring; 1211. a second transmission rod; 1212. a transmission block; 1213. a second return spring; 1221. a clamping rod; 1222. and clamping the roller.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical scheme of the invention is further explained by combining the attached drawings.

Example one

As shown in fig. 1-2, a centering device for motor stator and rotor punching production comprises a workbench 1, wherein gantries 2 are fixedly mounted on the left side of the upper end and the right side of the upper end of the workbench 1, lifting cylinders 3 are fixedly mounted on the upper portions of the inner side surfaces of the gantries 2, a connecting frame 4 is fixedly mounted on the output ends of the two lifting cylinders 3 together, the connecting frame 4 is of a n-shaped structure, a connecting mechanism 5 is fixedly mounted on the lower portion of the inner side surface of the connecting frame 4, an ink storage mechanism 6 is mounted on the connecting mechanism 5 in an inserting manner, the ink storage mechanism 6 is of a T-shaped structure, the middle portion of the lower end of the ink storage mechanism 6 extends to the lower portion of the connecting mechanism 5, a mark printing mechanism 7 is detachably mounted on the lower end of the ink storage mechanism 6, an air guide mechanism 8 and a pressing mechanism 9 are detachably mounted on the lower end of the connecting mechanism 5, the air guide mechanism 8 is sleeved on the outer side of the mark printing mechanism 7 and is communicated with the connecting mechanism 5, the pressing mechanism 9 is provided with four and is distributed in an annular array by taking the air guide mechanism 8 as a center, the middle parts of the lower ends of the two door frames 2 are fixedly provided with clamping cylinders 10, the output ends of the two clamping cylinders 10 are fixedly provided with transmission mechanisms 11, the left side of the upper end and the right side of the upper end of the workbench 1 are movably provided with centering mechanisms 12, the two centering mechanisms 12 are respectively positioned below the two transmission mechanisms 11 and are respectively in transmission connection with the two transmission mechanisms 11, the middle part of the upper end of the workbench 1 is fixedly provided with a placing table 13, the placing table 13 is positioned under the pressing mechanism 9, the left end and the right end of the workbench 1 are respectively provided with a first groove 14, the upside of the bottom surface of the two first grooves 14 is respectively provided with a mounting groove 15 penetrating through the upper end surface of the workbench 1, the centering mechanisms 12 are movably connected with the first grooves 14 and the mounting grooves 15, a circuit board (17) and a heating pipe (18) are arranged in the connecting mechanism (5), the heating pipe (18) is fixed on the circuit board (17).

The specific using process and the beneficial effects of the embodiment are as follows: when the stator and rotor punching piece workpieces for punching and manufacturing the stator and rotor punching pieces are subjected to centering marking, the stator and rotor punching piece workpieces are placed on a placing table 13, then two clamping cylinders 10 output simultaneously to respectively push two transmission mechanisms 11 to move downwards, the two transmission mechanisms 11 are respectively in transmission connection with two centering mechanisms 12, the transmission principle between the transmission mechanisms 11 and the centering mechanisms 12 is bevel transmission, the transmission mechanisms 11 push the centering mechanisms 12 to move twice bevel transmission when pushing the centering mechanisms 12 to move, so that the two centering mechanisms 12 are pushed to simultaneously move towards the stator and rotor punching piece workpieces, one parts of the two centering mechanisms 12 are firstly in contact with the stator and rotor punching piece workpieces together, the positions of the stator and rotor punching piece workpieces are aligned, the circle centers of the stator and rotor punching piece workpieces and the circle center of the placing table 13 are on the same vertical line, and then the other parts of the two centering mechanisms 12 are in contact with the stator and rotor punching piece together, the stator and rotor punching piece is clamped and fixed on a placing table 13, at the moment, a clamping cylinder 10 stops pushing down a transmission mechanism 11, then two lifting cylinders 3 simultaneously pull a connecting frame 4 to move downwards, so that a connecting mechanism 5, an ink storage mechanism 6, a mark printing mechanism 7, an air guide mechanism 8 and a pressing mechanism 9 all move downwards, the pressing mechanism 9 moves downwards and is pressed at the upper end of the stator and rotor punching piece to further fix the stator and rotor punching piece, then the lower end of the mark printing mechanism 7 is in contact with the upper end face of the stator and rotor punching piece, the internal structure of the mark printing mechanism 7 can stretch and retract, the mark printing mechanism 7 continues to move downwards along with the connecting frame 4 after being in contact with the stator and rotor punching piece, the internal structure of the mark printing mechanism 7 can contract until the external structure of the mark printing mechanism 7 is in contact with the stator and rotor punching piece, at the moment, the lifting cylinders 3 stop pulling the connecting frame 4 to move downwards, gaps are formed in the mark printing mechanism 7, ink in the ink storage mechanism 6 flows to the upper end face of the stator and rotor punching piece workpiece through the gaps in the mark printing mechanism 7, when the ink passes through the mark printing mechanism 7, the ink is divided by the mark printing mechanism 7 to form an inner ink flow and an outer ink flow, one ink flow moves downwards along the cylindrical inner wall of the external structure of the mark printing mechanism 7, thereby leaving an ink ring with a larger diameter on the stator and rotor punching piece workpiece, the other ink flow moves downwards along the conical outer wall of the internal structure of the mark printing mechanism 7, leaving an ink ring with a smaller diameter on the stator and rotor punching workpieces, wherein the ink ring with the smaller diameter is arranged on the inner side of the ink ring with the larger diameter, the circle centers of the two ink rings are the same circle center, and the circle center of the ink ring and the circle center of the stator and rotor punching workpieces are the same circle center, so that a double-ring mark is formed, and the circle center of the stator and rotor punching workpieces is marked; the circle centers of the double rings are marked, so that the centering effect is good, the wear resistance is better, the punching operation of the stator and rotor punching piece is easier to find, and the punching centering is easier to perform; in addition, after the mark printing mechanism 7 prints the double-ring mark, the heating pipe 18 in the connecting mechanism 5 heats the air in the connecting mechanism 5, the connecting mechanism 5 blows hot air into the air guide mechanism 8, and a gas atmosphere with higher temperature is formed outside the double-ink ring under the action of the air guide mechanism 8, so that the drying of the ink ring is accelerated, and the centering efficiency is improved.

Specifically, as shown in fig. 3, the connecting mechanism 5 plays a role of intermediate connection, and is connected with the connecting frame 4 upward, and is used for installing the mark printing mechanism 7, the air guide mechanism 8 and the pressing mechanism 9 downward; the connecting mechanism 5 comprises a connecting pipe 51 fixedly arranged at the lower part of the inner side surface of the connecting frame 4, the connecting pipe 51 is made of white transparent material or colorless transparent material and can transmit light, the structure of the inner side of the connecting pipe 51 can be conveniently seen, an upper connecting ring 52 and a lower connecting ring 53 are respectively and fixedly arranged at the upper end and the lower end of the connecting pipe 51, an air duct 54 is fixedly arranged at the upper end of the upper connecting ring 52 in an inserting way and is inserted and fixed with an air duct 54, the air duct 54 is provided with four or more inner holes of the connecting rings 52 which are distributed in an annular array way by taking the centers as the centers, a fan 57 and dust filter cotton 58 are fixedly arranged in the four air ducts 54, the dust filter cotton 58 is positioned above the fan 57, the fan 57 is used for pumping the air at the upper part of the upper connecting ring 52 into the connecting pipe 51 and blowing the air in the connecting pipe 51 into the inserting pipe 56, so that the air in the connecting pipe 51 enters the air guide mechanism 8, and the dust filter cotton 58 is used for filtering the air entering the connecting pipe 51, the dust filtering cotton 58 is detachably connected with the air duct 54, the dust filtering cotton 58 can be replaced, the lower end of the lower connecting ring 53 is fixedly inserted with the insertion tube 56, the lower end of the lower connecting ring 53 is fixedly arranged on the outer side of the insertion tube 56 and is fixedly provided with a first internal threaded tube 55, and the insertion tube 56 and the first internal threaded tube 55 are both provided with four inner holes which are distributed in an annular array mode by taking the inner holes of the lower connecting ring 53 as centers; the temperature sensor 16 is fixedly installed on the connecting pipe 51 in a penetrating mode, the circuit board 17 is fixed to the upper end of the lower connecting ring 53, the heating pipe 18 on the circuit board 17 can heat air in the connecting pipe 51, the temperature sensor 16 can monitor the temperature of the air in the connecting pipe 51, the heating pipe 18 is prevented from excessively heating the air in the connecting pipe 51, hot air in the connecting pipe 51 can be used for the drying mark printing mechanism 7 to print a double-ring mark, and can also be used for heating ink in the ink storage mechanism 6 to keep the fluidity of the ink.

Specifically, as shown in fig. 4, the ink storage mechanism 6 is used for containing ink for printing a double ring mark; the ink storage mechanism 6 comprises an ink storage cup 61, the ink storage cup 61 is made of white transparent material or colorless transparent material and can transmit light, the ink storage cup 61 is used for containing ink, the outer side surface of the ink storage cup 61 is provided with a scale mark which is vertically arranged, the amount of the ink in the ink storage cup 61 can be observed, the lower end of the ink storage cup 61 is fixedly provided with a second internal thread pipe 62, the second internal thread pipe 62 is communicated with the ink storage cup 61, the upper side of the inner wall surface of the second internal thread pipe 62 is fixedly provided with a cross-shaped pressing frame 63, the upper end of the ink storage cup 61 is movably clamped with a cover plate 65, the upper end of the cover plate 65 is fixedly inserted with a one-way air valve 66, the upper part of the outer cylindrical surface of the ink storage cup 61 is fixedly sleeved with a flange ring 64, the ink storage cup 61 is nested in the inner hole of the upper connecting ring 52 and is contacted with the lower end of the lower connecting ring 53, the second internal thread pipe 62 passes through the inner hole of the lower connecting ring 53 and extends to the lower connecting ring 53, the flange ring 64 is connected with the upper end of the upper connecting ring 52 through a bolt, so that the ink storage mechanism 6 and the connecting mechanism 5 can be conveniently connected and installed, and replacement and maintenance are convenient.

Specifically, as shown in fig. 5, the mark printing mechanism 7 may print a concentric double-ring mark on the surface of the stator/rotor punching workpiece by using ink; the mark printing mechanism 7 comprises a mounting rod 71, the mounting rod 71 is a T-shaped revolving body structure, the lower part of the outer cylindrical surface of the mounting rod 71 is contracted into a conical shape towards the center of the mounting rod 71, the middle part of the upper end of the mounting rod 71 is provided with a second groove 72, the bottom surface of the second groove 72 is provided with a placing groove 73, the placing groove 73 penetrates through the lower end surface of the mounting rod 71, a stamping rod 74 and an ejection spring 75 are movably arranged in the placing groove 73, the ejection spring 75 is fixedly arranged at the upper end of the stamping rod 74, the upper part of the outer cylindrical surface of the mounting rod 71 is in threaded connection with the inner wall of a second internal threaded pipe 62, so that the connection between the mark printing mechanism 7 and the ink storage mechanism 6 is detachable connection, thereby facilitating the mounting and dismounting of the mark printing mechanism 7, the pressing frame 63 is of a T-shaped structure, and the middle of the lower end of the pressing frame 63 extends into the second groove 72 and contacts with the upper end of the ejecting spring 75, so that the ejecting spring 75 can play a role of pushing out the stamping rod 74.

As a further description of the above scheme, the middle part of the cylindrical wall surface of the placement groove 73 is provided with an ink storage groove 731, the ink storage groove 731 can play a role in storing a small amount of ink, the ink storage groove 731 is provided with four grooves distributed in an annular array, the wall surfaces of the four ink storage grooves 731 are all provided with guide grooves 732, the wall surfaces of the four guide grooves 732 are all provided with ink guide grooves 733, the ink guide grooves 733 can play a role in guiding the ink in the ink storage groove 731 into the placement groove 73 below the guide grooves 732, so that the ink can flow down from the gap between the stamping bar 74 and the placement groove 73, the ink storage grooves 731, the guide grooves 732 and the ink guide grooves 733 are all communicated with the second groove 72, the stamping bar 74 comprises an ejection block 741, the ejection block 741 is fixedly connected with the lower end of the ejection spring 75, the outer cylindrical surface of the ejection block 741 is fixedly provided with guide blocks 76, the guide blocks 76 are provided with four grooves 732, the stamping rod 74 can be linearly moved up and down on the same vertical direction to play a role of guiding.

As a further description of the above scheme, as shown in fig. 6, a sliding rod 742 is fixedly mounted at the lower end of an ejection block 741, a shunt rod 743 is fixedly mounted at the lower end of the sliding rod 742, a connecting block 744 is fixedly mounted at the lower end of the shunt rod 743, a guide rod 745 is fixedly mounted at the lower end of the connecting block 744, the diameter of the sliding rod 742 is larger than that of the ejection block 741, the sliding rod 742 is in movable contact with the wall surface of the placement groove 73, the diameter of the sliding rod 742 is consistent with the inner diameter of the placement groove 73, both the shunt rod 743 and the guide rod 745 are of a tapered structure, the diameter of the upper end of the shunt rod 743 is consistent with that of the sliding rod 742, the diameter of the lower end of the shunt rod 743 is smaller than that of the upper end of the shunt rod 743, the diameter of the lower end of the shunt rod 743 is consistent with that of the connecting block 744 and that of the upper end of the guide rod 745, and the diameter of the lower end of the guide rod 745 is smaller than that of the guide rod 745; in the process of pulling down the lifting cylinder 3, after the guide rod 745 moves down to contact with the stator and rotor punching workpiece, the mounting rod 71 continues to move down, the guide block 76 moves up along the guide groove 732, the lower end surface of the slide rod 742 is positioned above the groove bottom surface of the guide groove 732, and when the lower end surface of the guide rod 745 and the lower end surface of the mounting rod 71 are in the same plane, the minimum distance between the shunt rod 743 and the placing groove 73 is controlled to be 0.5mm-1mm, at this time, ink in the ink guide groove 733 can flow down from a narrow gap between the shunt rod 743 and the placing groove 73 and generate a shunt phenomenon, the ink is divided into two parts, one part of the ink flows down along the groove wall surface of the placing groove 73 and falls on the stator and rotor punching workpiece to form an ink ring with a larger diameter, the other part of the ink flows through the surface of the shunt rod 743, the surface of the connecting block 744 and the surface of the guide rod 745 and finally falls on the stator and rotor workpiece, so that an ink ring with a smaller diameter is formed on the stator and rotor workpiece, the circle centers of the two ink rings are the same circle center and are the same point with the circle center of the stator and rotor punching piece workpiece, so that the function of determining the circle center of the stator and rotor punching piece workpiece is realized.

Specifically, as shown in fig. 7, the air guide mechanism 8 is used to guide the hot air in the connection pipe 51 to the periphery of the ink ring, so as to form an air atmosphere with a higher temperature around the ink ring, thereby accelerating the drying of the ink ring; the air guide mechanism 8 comprises four air guide pipes 81, the four air guide pipes 81 are respectively inserted and fixedly installed in the four insertion pipes 56, the lower ends of the four air guide pipes 81 are jointly and fixedly provided with a ring pipe 82, the lower side of the outer surface of the ring pipe 82 is fixedly provided with an air outlet pipe 83, and the air outlet pipes 83 are provided with a plurality of air outlet pipes and distributed in an annular array by taking the mark printing mechanism 7 as the center; through the arrangement, hot air blown out by the fan 57 enters the air guide pipe 81 through the insertion pipe 56, then enters the circular pipe 82 and is finally sprayed out of the air outlet pipes 83, so that multiple strands of hot air are sprayed to the stator and rotor punching piece workpiece at a constant speed and cannot be directly blown on ink on the stator and rotor punching piece workpiece, and the ink is not easily dispersed in the process of heating and drying the ink, so that the ink marking effect is ensured.

Specifically, as shown in fig. 7, the pressing mechanism 9 is used for pressing the stator and rotor punching piece from top to bottom, and plays a role in further fixing the stator and rotor punching piece; the pressing mechanism 9 comprises a screw rod 91 in threaded connection with the first internal threaded pipe 55, a sleeve 92 is fixedly installed at the lower end of the screw rod 91, a pressing rod 93 is movably installed at the lower end of the sleeve 92 in an inserting mode, a pressing plate 94 is fixedly installed at the lower end of the pressing rod 93, and a pressure spring 95 is fixedly connected between the upper end of the pressing plate 94 and the sleeve 92; in the above arrangement, when the lifting cylinder 3 drives the pressing mechanism 9 to move downward, the pressing plate 94 contacts with the upper end surface of the stator/rotor punching piece, so that the pressure spring 95 is compressed, and the compressed pressure spring 95 presses the pressing plate 94 on the stator/rotor punching piece by using the elastic potential energy of the pressure spring 95, so that the stator/rotor punching piece is fixed on the placing table 13 from top to bottom.

Specifically, as shown in fig. 8, the transmission mechanism 11 is used for performing a transmission function, and converting the downward output motion of the clamping cylinder 10 into the linear sliding of the centering mechanism 12 towards the stator-rotor punching piece workpiece; the transmission mechanism 11 comprises a connecting plate 111, the connecting plate 111 is fixedly installed at the output end of the clamping cylinder 10, a push plate 112 is fixedly installed at the lower end of the connecting plate 111, a first transmission plate 113 is fixedly installed at the lower end of the push plate 112, a transmission frame 114 is fixedly installed on the outer side surface of the push plate 112, a second transmission plate 115 is fixedly installed on the front side of the lower end and the rear side of the lower end of the transmission frame 114, guide rods 116 are fixedly installed at one ends, far away from the transmission frame 114, of the two second transmission plates 115, guide rods 116 are fixedly installed at the lower end surfaces of the first transmission plate 113 and the second transmission plate 115, inclined planes inclining outwards by 45 degrees are arranged on the lower end surfaces of the first transmission plate 113 and the second transmission plate 115, and the guide rods 116 are vertically arranged; the second transmission plate 115 is located above the first transmission plate 113, the push plate 112 can be movably connected with the outer side face of the centering mechanism 12, the first transmission plate 113 and the second transmission plate 115 are both in transmission connection with the centering mechanism 12, the first transmission plate 113 is in transmission connection with the centering mechanism 12 firstly, and when the inner side face of the push plate 112 just contacts with the outer side face of the centering mechanism 12, the second transmission plate 115 is just in transmission connection with the centering mechanism 12, so that the sequential transmission effect is achieved, the centering mechanism 12 achieves sequential twice centering clamping on the stator and rotor punching workpieces, and the centering precision is guaranteed.

Specifically, as shown in fig. 9, the two centering mechanisms 12 are symmetrically distributed left and right, and the two centering mechanisms 12 together complete centering and clamping on the stator-rotor punching piece; the centering mechanism 12 comprises a first transmission rod 121, the first transmission rod 121 is arranged in a front-back manner, a connecting rod 122, a sliding plate 123 and a guide rod 124 are fixedly arranged on the inner side surface of the first transmission rod 121 from top to bottom in sequence, an elastic sheet 125 is movably arranged at one end, far away from the first transmission rod 121, of the connecting rod 122 through a shaft, the elastic sheet 125 can swing on the connecting rod 122, the circumferential side surface of a stator-rotor punching sheet workpiece can be attached to the circumferential side surface of the stator-rotor punching sheet workpiece more quickly when the stator-rotor punching sheet workpiece is clamped, the position of the stator-rotor punching sheet workpiece can be preliminarily adjusted, even if the stator-rotor punching sheet workpiece has small-amplitude position deviation on the placing table 13, the central position of the stator-rotor punching sheet workpiece can be accurately adjusted to the central position required when centering, meanwhile, the movable elastic sheet 125 can be in flexible contact when in contact with the stator-rotor punching sheet, the movable elastic sheet 125 can be in better contact and clamped, centering springs 126 are fixedly arranged at the front end and the back end of the connecting rod 122, the auxiliary block 127 is fixedly arranged at one end of each of the two centering springs 126 far away from the connecting rod 122, the first return spring 128 is sleeved on the guide rod 124, the first transmission rod 121 is of a T-shaped structure, the middle part of the lower end of the first transmission rod 121 is movably connected with the mounting groove 15, the sliding plate 123 is movably contacted with the upper end face of the workbench 1, the guide rod 124 is movably connected with the groove wall face of the mounting groove 15 in a penetrating manner, the first return spring 128 is fixedly arranged between the groove bottom face of the mounting groove 15 and the inner side face of the first transmission rod 121, the arrangement of the sliding plate 123 and the guide rod 124 can enable the centering mechanism 12 to linearly slide left and right on the seat of the workbench 1, and the arrangement of the first return spring 128, when the clamping of the stator and rotor punching piece is released, the centering mechanism 12 can be automatically away from the stator and rotor punching piece to reset, so that the centered stator and rotor punching piece can be conveniently taken out, and the next stator and rotor punching piece to be centered can be conveniently clamped.

As a further improvement of the above scheme, clamping rods 1221 are movably mounted on the front side of the lower end and the rear side of the lower end of the connecting rod 122 through shafts, clamping rollers 1222 are movably mounted on the sides, away from the connecting rod 122, of the upper ends of the two clamping rods 1221 through shafts, two driving rods 1211 are arranged on the front side and the rear side of the connecting rod 122, the two driving rods 1211 are arranged left and right, the two driving rods 1211 are movably mounted on the first driving rod 121 in an inserted manner, driving blocks 1212 are fixedly mounted on the end faces of the outer sides of the two driving rods 1211, and the driving blocks 1212 are located on the outer sides of the first driving rod 121 and are fixedly mounted with second reset springs 1213 between the driving blocks 1212; in the above arrangement, the clamping rollers 1222 are configured to clamp and fix the stator/rotor punching workpiece, the four clamping rollers 1222 can completely clamp the stator/rotor punching workpiece, and the center of the stator/rotor punching workpiece can be located at the intersection of the opposite connecting lines of the four clamping rollers 1222, and the intersection of the opposite connecting lines of the four clamping rollers 1222 is located at the center line of the mark printing mechanism 7, so as to ensure that the center of the stator/rotor punching workpiece and the center of the placing table 13 are located on the same vertical line, thereby ensuring the centering accuracy.

As a further improvement of the above scheme, the lower ends of the two second transmission rods 1211 are respectively connected with the two clamping rods 1221 in a sliding manner through a shaft, the two clamping rods 1221 are arranged in a V-shape, the two centering springs 126 are arranged in a V-shape, the auxiliary block 127 is in movable contact with the outer side surface of the elastic sheet 125, and through the arrangement, the two centering springs 126 arranged in a V-shape can automatically align the elastic sheet 125 in the process of contacting with the stator/rotor punching sheet workpiece by using the elastic potential energy of the elastic sheet 125 when the elastic sheet 125 swings to compress and deform the centering springs 126, and adjust the position of the elastic sheet 125 to enable the two elastic sheets 125 to face the stator/rotor punching sheet workpiece, so that the primary alignment and centering of the stator/rotor punching sheet workpiece are realized, and the center of the stator/rotor punching sheet workpiece is opposite to the center of the placing table 13; the upper end face of the first transmission rod 121 is provided with a downward inclined plane and is in transmission connection with the inclined plane on the first transmission plate 113, the upper end face of the transmission block 1212 is provided with a downward inclined plane and is in transmission connection with the inclined plane on the second transmission plate 115, through the above arrangement, the transmission form between the transmission mechanism 11 and the centering mechanism 12 is inclined plane transmission, the first transmission plate 113 firstly establishes inclined plane transmission with the first transmission rod 121, pushes the whole centering mechanism 12 to move towards the stator and rotor punching workpieces, so that the spring pieces 125 are in contact with the stator and rotor punching workpieces, when the transmission connection between the first transmission plate 113 and the first transmission rod 121 is released and the push plate 112 just contacts with the outer side face of the first transmission rod 121, the second transmission plate 115 just establishes transmission connection with the transmission block 1212, pushes the second transmission rod 1211 to move towards the stator and rotor punching workpieces, so that the clamping rod 1221 rotates towards the stator and rotor workpieces, and then the clamping rollers 1222 are contacted with the stator and rotor punching piece, so that the four clamping rollers 1222 finish clamping and fixing the stator and rotor punching piece together, in the process, the push plate 112 moves downwards, the position of the first transmission rod 121 is kept unchanged, and the elastic sheet 125 keeps clamping the stator and rotor punching piece.

As a further improvement of the above scheme, a surface of the auxiliary block 127 contacting with the elastic sheet 125 is a curved surface, so that the auxiliary block 127 can be more flexibly connected with the elastic sheet 125, the elastic sheet 125 is of an arc-shaped sheet structure and can elastically deform, so that the elastic sheet 125 can realize the alignment of the stator and rotor stamped workpieces by using the elastic potential energy of the elastic sheet 125, a vertical line where the center of the lower end surface of the guide rod 745 is located marks the center line of the printing mechanism 7 and is vertically intersected with the connecting line of the arc centers of the two elastic sheets 125, and the intersection point is the center of the placing table 13, so that the centering accuracy can be ensured.

Example two

On the basis of the first embodiment, as shown in fig. 10, the upper end of the placing table 13 is provided with a bracket 131 which is arranged in the front and back, a transmission belt 19 is movably arranged in the bracket 131, the upper end surface of the transmission belt 19 is flush with the upper end surface of the placing table 13, the transmission belt 19 is used for conveying stator and rotor punching workpieces, the stator and rotor punching workpieces which are well centered can be conveyed away from the device, the stator and rotor punching workpieces to be centered are conveyed into the device for centering operation, and continuous centering of the stator and rotor punching workpieces is realized.

In conclusion, the lifting cylinder 3 is arranged to realize the lifting of the connecting mechanism 5, the ink storage mechanism 6 and the mark printing mechanism 7, the mark printing mechanism 7 is pulled down by the lifting cylinder 3, so that the mark printing mechanism 7 is contacted with a stator and rotor punching piece workpiece, the ink storage mechanism 6 can flow into the mark printing mechanism 7, concentric double-ink ring marks are printed on the stator and rotor punching piece workpiece, when the stator and rotor punching piece workpiece is punched into punching pieces, the centering marks can be quickly found, and the centering precision in the punching process is ensured; through setting up two centre gripping cylinders 10, two drive mechanism 11 and two centering mechanism 12, make two centering mechanism 12 move towards stator and rotor punching piece work piece simultaneously, two centering mechanism 12 cooperate jointly, divide two successive steps to the stator and rotor punching piece work piece centering centre gripping, make the centre of a circle of stator and rotor punching piece work piece on the vertical central line of mark printing mechanism 7, guarantee centering accuracy.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a centring means of motor stator-rotor punching production, includes workstation (1), its characterized in that: the automatic printing device is characterized in that a portal (2) is fixedly mounted on the left side of the upper end of the workbench (1) and on the right side of the upper end of the workbench, a lifting cylinder (3) is fixedly mounted on the upper portion of the inner side of the portal (2), a connecting frame (4) is fixedly mounted on the upper portion of the output end of the lifting cylinder (3), the connecting frame (4) is of a n-shaped structure, a connecting mechanism (5) is fixedly mounted on the lower portion of the inner side of the connecting frame (4), an ink storage mechanism (6) is installed on the connecting mechanism (5) in a penetrating mode, the ink storage mechanism (6) is of a T-shaped structure, the middle of the lower end of the ink storage mechanism (6) extends to the position below the connecting mechanism (5), a mark printing mechanism (7) is detachably mounted on the lower end of the ink storage mechanism (6), and an air guide mechanism (8) and a pressing mechanism (9) are detachably mounted on the lower end of the connecting mechanism (5), the air guide mechanism (8) is sleeved on the outer side of the mark printing mechanism (7) and communicated with the connecting mechanism (5), the pressing mechanism (9) is provided with four clamping cylinders (10) which are distributed in an annular array by taking the air guide mechanism (8) as a center, the middle parts of the lower ends of the two portal frames (2) are fixedly provided with the clamping cylinders (10), the output ends of the two clamping cylinders (10) are fixedly provided with the transmission mechanisms (11), the left side and the right side of the upper end of the workbench (1) are respectively and movably provided with the centering mechanisms (12), the two centering mechanisms (12) are respectively positioned below the two transmission mechanisms (11) and are respectively in transmission connection with the two transmission mechanisms (11), the middle part of the upper end of the workbench (1) is fixedly provided with the placing table (13), the placing table (13) is positioned under the pressing mechanism (9), and the left end and the right end of the workbench (1) are respectively provided with a first groove (14), the upper sides of the bottom surfaces of the first grooves (14) are respectively provided with a mounting groove (15) penetrating through the upper end surface of the workbench (1), the centering mechanism (12) is movably connected with the first grooves (14) and the mounting grooves (15), a circuit board (17) and a heating pipe (18) are arranged in the connecting mechanism (5), and the heating pipe (18) is fixed on the circuit board (17);

the connecting mechanism (5) comprises a connecting pipe (51) fixedly installed at the lower part of the inner side surface of the connecting frame (4), an upper connecting ring (52) and a lower connecting ring (53) are fixedly installed at the upper end and the lower end of the connecting pipe (51) respectively, an air duct (54) is fixedly installed at the upper end of the upper connecting ring (52) in an inserting mode, inner holes of the air duct (54) provided with four or more connecting rings (52) are distributed in an annular array mode as the center, a fan (57) and dust filtering cotton (58) are fixedly installed in the four air ducts (54), the dust filtering cotton (58) is located above the fan (57), inserting pipes (56) are fixedly installed at the lower end of the lower connecting ring (53) in an inserting mode, inner threaded pipes (55) are fixedly installed at the outer side of the inserting pipes (56), and the inner holes of the inserting pipes (56) and the inner threaded pipes (55) are provided with four or more than the inner holes of the connecting rings (53) and are distributed in an annular array mode as the center; the connecting pipe (51) is fixedly provided with a temperature sensor (16) in an inserting way, and the circuit board (17) is fixed at the upper end of the lower connecting ring (53);

the ink storage mechanism (6) comprises an ink storage cup (61), a second internal thread pipe (62) is fixedly arranged at the lower end of the ink storage cup (61), the second internal thread tube (62) is communicated with the ink storage cup (61), a cross-shaped pressing frame (63) is fixedly arranged on the upper side of the inner wall surface of the second internal thread tube (62), a cover plate (65) is movably clamped at the upper end of the ink storage cup (61), a one-way air valve (66) is fixedly inserted into the upper end of the cover plate (65), the upper part of the outer cylindrical surface of the ink storage cup (61) is fixedly sleeved with a flange ring (64), the ink storage cup (61) is nested in the inner hole of the upper connecting ring (52) and is contacted with the lower end of the lower connecting ring (53), the second internal thread pipe (62) passes through the inner hole of the lower connecting ring (53) and extends to the lower part of the lower connecting ring (53), the flange ring (64) is connected with the upper end of the upper connecting ring (52) through a bolt;

the mark printing mechanism (7) comprises a mounting rod (71), the mounting rod (71) is of a T-shaped revolving body structure, the lower part of the outer cylindrical surface of the mounting rod (71) shrinks to the center of the mounting rod (71) to form a conical shape, the middle part of the upper end of the mounting rod (71) is provided with a second groove (72), the bottom surface of the second groove (72) is provided with a placing groove (73), the placing groove (73) penetrates through the lower end face of the mounting rod (71), a stamping rod (74) and an ejection spring (75) are movably arranged in the placing groove (73), the ejection spring (75) is fixedly arranged at the upper end of the stamping rod (74), the upper part of the outer cylindrical surface of the mounting rod (71) is in threaded connection with the inner wall of the second internal threaded pipe (62), the pressing frame (63) is of a T-shaped structure, and the middle of the lower end of the pressing frame (63) extends into the second groove (72) and is in contact with the upper end of the ejection spring (75).

2. The centering device for motor stator and rotor sheet production according to claim 1, characterized in that: the stamping device is characterized in that an ink storage groove (731) is formed in the middle of the wall surface of a cylindrical groove of the placing groove (73), the ink storage groove (731) is provided with four grooves which are distributed in an annular array, the four groove wall surfaces of the ink storage groove (731) are provided with guide grooves (732), the four groove wall surfaces of the guide grooves (732) are provided with ink guide grooves (733), the ink storage groove (731), the guide grooves (732) and the ink guide grooves (733) are communicated with the second groove (72), the stamping rod (74) comprises ejection blocks (741), the ejection blocks (741) are fixedly connected with the lower ends of ejection springs (75), guide blocks (76) are fixedly mounted on the outer cylindrical surface of the ejection blocks (741), and the guide blocks (76) are provided with four grooves which are respectively arranged in the four guide grooves (732).

3. The centering device for motor stator and rotor sheet production according to claim 2, characterized in that: the lower end of the ejection block (741) is fixedly provided with a sliding rod (742), the lower end of the sliding rod (742) is fixedly provided with a shunt rod (743), the lower end of the shunt rod (743) is fixedly provided with a connecting block (744), the lower end of the connecting block (744) is fixedly provided with a guide rod (745), the diameter of the sliding rod (742) is larger than that of the ejection block (741), the sliding rod (742) is in movable contact with the wall surface of the placement groove (73), and the shunt rod (743) and the guide rod (745) are both in a conical structure.

4. The centering device for motor stator and rotor sheet production according to claim 1, characterized in that: the air guide mechanism (8) comprises four air guide pipes (81), the four air guide pipes (81) are respectively inserted and fixedly installed in the four insertion pipes (56), the lower ends of the four air guide pipes (81) are jointly and fixedly provided with a ring pipe (82), the lower side of the outer surface of the ring pipe (82) is fixedly provided with an air outlet pipe (83), and the air outlet pipes (83) are provided with a plurality of air outlet pipes and distributed in an annular array by taking the mark printing mechanism (7) as the center; the pressing mechanism (9) comprises a screw rod (91) in a first internal threaded pipe (55) in a threaded connection mode, a sleeve (92) is fixedly mounted at the lower end of the screw rod (91), a pressing rod (93) is movably mounted at the lower end of the sleeve (92) in a penetrating mode, a pressing plate (94) is fixedly mounted at the lower end of the pressing rod (93), and a pressure spring (95) is fixedly connected between the upper end of the pressing plate (94) and the sleeve (92) jointly.

5. The centering device for motor stator and rotor sheet production according to claim 3, characterized in that: drive mechanism (11) are including connecting plate (111), connecting plate (111) fixed mounting is at the output of centre gripping cylinder (10), the lower extreme fixed mounting of connecting plate (111) has push pedal (112), the lower extreme fixed mounting of push pedal (112) has driving plate (113) No. one, fixed mounting has driving frame (114) on the lateral surface of push pedal (112), the lower extreme front side and the equal fixed mounting of lower extreme rear side of driving frame (114) have driving plate (115) No. two the equal fixed mounting of one end that driving frame (114) was kept away from to driving plate (115) has guide arm (116), the lower terminal surface of driving plate (113) and the lower terminal surface of driving plate (115) all set up and are the inclined plane that leans out 45 degrees, guide arm (116) are vertical setting.

6. The centering device for motor stator and rotor sheet production according to claim 5, characterized in that: the centering mechanism (12) comprises a first transmission rod (121), the first transmission rod (121) is arranged front and back, a connecting rod (122), a sliding plate (123) and a guide rod (124) are sequentially and fixedly mounted on the inner side surface of the first transmission rod (121) from top to bottom, an elastic sheet (125) is movably mounted at one end, away from the first transmission rod (121), of the connecting rod (122) through a shaft, centering springs (126) are fixedly mounted at the front end and the rear end of the connecting rod (122), two auxiliary blocks (127) are fixedly mounted at one ends, away from the connecting rod (122), of the two centering springs (126), a reset spring (128) is sleeved on the guide rod (124), the first transmission rod (121) is of a T-shaped structure, the middle part of the lower end of the first transmission rod (121) is movably connected with a mounting groove (15), and the sliding plate (123) is movably contacted with the upper end surface of the workbench (1), the guide rod (124) is movably connected with the wall surface of the mounting groove (15) in a penetrating mode, and the first reset spring (128) is fixedly mounted between the bottom surface of the mounting groove (15) and the inner side surface of the first transmission rod (121).

7. The centering device for motor stator and rotor sheet production according to claim 6, characterized in that: all there is supporting rod (1221), two through axle movable mounting the lower extreme front side of connecting rod (122) and lower extreme rear side one side that connecting rod (122) were kept away from to the upper end of supporting rod (1221) all has clamping roller (1222) through axle movable mounting, both sides all are provided with No. two transfer lines (1211) around connecting rod (122), No. two transfer lines (1211) are and control the setting, No. two transfer lines (1211) alternate movable mounting on transfer line (121), two fixed mounting has transmission piece (1212) on the outside terminal surface of No. two transfer lines (1211), common fixed mounting has No. two reset spring (1213) between outside and transmission piece (1212) that transmission piece (1212) is located a transfer line (121).

8. The centering device for motor stator and rotor sheet production according to claim 7, characterized in that: two the lower extreme of No. two transfer line (1211) passes through the axle respectively with two supporting rod (1221) sliding connection, two supporting rod (1221) is the V-arrangement setting, two centering spring (126) are the V-arrangement setting, supplementary piece (127) and the lateral surface movable contact of shell fragment (125), the up end outside of a transfer line (121) sets up the inclined plane that is the downward sloping and is connected with the inclined plane transmission on a driving plate (113), the up end outside of driving block (1212) sets up the inclined plane that is the downward sloping and is connected with the inclined plane transmission on No. two driving plates (115).

9. The centering device for motor stator and rotor punching production according to claim 8, characterized in that: the surface of the auxiliary block (127) which is in contact with the elastic sheet (125) is a curved surface, the elastic sheet (125) is of an arc-shaped sheet structure, the center line of the printing mechanism (7) is marked by the vertical line where the circle center of the lower end surface of the guide rod (745) is located, the vertical line is vertically intersected with the connecting line of the arc centers of the two elastic sheets (125), and the intersection point is the circle center of the placing table (13).

10. The centering device for motor stator and rotor sheet production according to claim 1, characterized in that: the upper end of the placing table (13) is provided with a bracket (131) which is arranged in the front and at the back, a transmission belt (19) is movably arranged in the bracket (131), and the upper end surface of the transmission belt (19) is flush with the upper end surface of the placing table (13).