阅读说明：本技术 一种方形定子冲片叠压胎及其叠压方法 (Square stator punching sheet laminating tire and laminating method thereof ) 是由 高振涛 李娅娟 毛永光 陈国斯 张兰芳 于 2019-11-21 设计创作，主要内容包括：本发明涉及各种数控机床主轴进给及其他功能的伺服电机的定子铁心叠压工艺及其装备技术领域,具体涉及一种方形定子冲片叠压胎及其叠压方法。包括底胎、下压圈、上压胎、上压圈、芯轴、涨套；所述底胎上表面中心设置定位凹槽,定位凹槽外围自内而外,自上而下分别设置一级台阶部及二级台阶部,所述定位凹槽内部放置涨套,涨套内径与芯轴外径配合,所述一级台阶部外围间隙配合有下压圈,所述下压圈设置在二级台阶部上部；所述上压胎包括上板、下板及将上板、下板连接在一起的若干支撑杆,所述下板底部设置有凸部,所述凸部外围套装上压圈,下板上设置若干螺栓孔。其结构更加合理,便于操作,可保证叠压的铁心里外整齐。(The invention relates to the technical field of stator core laminating processes and equipment of servo motors with various numerical control machine tool spindle feeding and other functions, in particular to a square stator punching laminating tire and a laminating method thereof. Comprises a bottom tire, a lower pressing ring, an upper pressing tire, an upper pressing ring, a mandrel and an expansion sleeve; the center of the upper surface of the bottom tire is provided with a positioning groove, the periphery of the positioning groove is respectively provided with a first-stage step part and a second-stage step part from inside to outside from top to bottom, an expansion sleeve is arranged in the positioning groove, the inner diameter of the expansion sleeve is matched with the outer diameter of the mandrel, the periphery of the first-stage step part is in clearance fit with a lower pressing ring, and the lower pressing ring is arranged at the upper part of the second-stage step part; the upper press tire comprises an upper plate, a lower plate and a plurality of support rods for connecting the upper plate and the lower plate together, wherein a convex part is arranged at the bottom of the lower plate, an upper press ring is sleeved on the periphery of the convex part, and a plurality of bolt holes are formed in the lower plate. The structure is more reasonable, the operation is convenient, and the inside and the outside of the laminated iron core can be ensured to be neat.)

1. Square stator punching sheet stack child, its characterized in that: comprises a bottom tire, a lower pressing ring, an upper pressing tire, an upper pressing ring, a mandrel and an expansion sleeve; the center of the upper surface of the bottom tire is provided with a positioning groove, the periphery of the positioning groove is respectively provided with a first-stage step part and a second-stage step part from inside to outside from top to bottom, an expansion sleeve is arranged in the positioning groove, the inner diameter of the expansion sleeve is matched with the outer diameter of the mandrel, the periphery of the first-stage step part is in clearance fit with a lower pressing ring, and the lower pressing ring is arranged at the upper part of the second-stage step part; the upper press tire comprises an upper plate, a lower plate and a plurality of support rods for connecting the upper plate and the lower plate together, wherein a convex part is arranged at the bottom of the lower plate, an upper press ring is sleeved on the periphery of the convex part, and a plurality of bolt holes are formed in the lower plate.

2. The square stator punch laminating tire of claim 1, wherein: the laminating tire further comprises a shape finishing tire assembly, the shape finishing tire assembly comprises two right-angle baffle plates, and each right-angle baffle plate comprises a side fixing plate, a front fixing plate and a rear fixing plate which are detachably connected with each other in a right-angle manner; the end part of a side fixing plate of the right-angle baffle plate is provided with a hinge seat, the end parts of a front fixing plate and a rear fixing plate of the right-angle baffle plate are provided with fixing seats, and the hinge seat and the fixing seat at the corresponding position are fixed through a hinge rod and a nut; and the front and rear fixing plates are provided with compression screws.

3. The square stator punch laminating tire of claim 1, wherein: the upper plate and the lower plate are square plates, the size of the upper plate is smaller than that of the lower plate, and four side edges of the upper plate are respectively provided with four notches.

4. The square stator punch laminating tire of claim 1, wherein: the width of the first-stage step part is smaller than that of the lower pressing ring.

5. The square stator punch laminating tire of claim 1, wherein: the bottom tire is of a square structure, two connecting plates are respectively arranged on two opposite sides, and two rectangular notches are respectively arranged on two sides where the connecting plates are not arranged.

6. The square stator punching lamination tire of claim 1, wherein the expansion sleeve is cut into three equal parts each having a diameter of 3 ~ 4mm less after the inner and outer circles are processed.

7. The square stator punch laminating tire of claim 1, wherein: the inner diameter of the expansion sleeve and the mandrel adopt a self-locking angle, and when the mandrel and the expansion sleeve are completely matched with each other at the self-locking angle, the outer diameter of the expansion sleeve is completely expanded.

8. The method for laminating the square stator punching sheet of the laminating tire according to claim 2 is characterized in that: after the bottom tire is fixed, the expansion sleeve is inserted into a positioning groove of the bottom tire, a lower pressing ring is arranged on the periphery of a first-level step part, the arranged punching sheets are stacked outside the expansion sleeve, a pressing tire is arranged, a mandrel is tensioned downwards and tightly pressed against the pressing tire, whether the measurement height is qualified or not is measured, the appearance is further arranged after the measurement height is qualified, the mandrel is tensioned, the pressing tire is simultaneously pressed, a plurality of long bolts are inserted into an iron core through the upper pressing tire during pressing, the bolts are fixed, and after the sheet mounting is completed, the fixing plate is detached.

9. The method for laminating the square stator punching sheet according to claim 8, is characterized in that: the fixed plate is removed by rotating the compression screw to eject the front fixed plate and the rear fixed plate.

10. The method for laminating the square stator punching sheet according to claim 8, is characterized in that: and the appearance is further sorted after the measured height is qualified, namely, the two right-angle baffle plates are relatively moved, whether the convex parts on the side surfaces of the front fixing plate and the rear fixing plate can be completely inserted into the side fixing plate or not is observed, if the convex parts cannot be inserted into the side fixing plate or not, the appearance is sorted again until the convex parts can be smoothly inserted into the side fixing plate, the hinge rods on the two sides are respectively placed into the hinge seats, the nuts are screwed, and the whole appearance sorting tire is mounted.

Technical Field

The invention relates to the technical field of stator core laminating processes and equipment of servo motors with various numerical control machine tool spindle feeding and other functions, in particular to a square stator punching laminating tire and a laminating method thereof.

Background

The motors for feeding the main shaft of the numerical control machine and other functional machines are mostly directly connected with the main shaft of the machine or other feeding parts. The motor cannot be installed outside a machine tool like a motor for a common machine tool, and is basically installed inside the machine tool, so that the motor has the advantages of small volume as much as possible, quick heat dissipation, no motor shell, slightly enlarged motor stator punching sheet serving as the shell, square shape and convenience in installation.

Generally, the motor stator laminating tire uses a circular mandrel and an expansion sleeve, the inner circle of a stator punching sheet is placed outside the expansion sleeve, and the mandrel is tensioned to complete laminating. Two symmetrical slotted holes are directionally selected, and two slot sample rods are installed. The fastening piece is pressed into the fastening piece groove of the punching sheet for fastening, and two ends of the fastening piece are flatly welded on the pressing ring. The servo motor iron core is fixed by inserting the pressing ring from the upper surface to the pressing ring from the lower surface through eight long bolts. The matching of the bolt and the punching sheet is clearance fit, so the appearance always has uneven phenomenon.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a square stator punching lamination laminating tire which is more reasonable in structure and convenient to operate and can ensure that laminated iron cores are tidy inside and outside.

In order to achieve the purpose, the technical scheme provided by the invention is that the square stator punching sheet laminating tire comprises a bottom tire, a lower pressing ring, an upper pressing tire, an upper pressing ring, a mandrel and an expansion sleeve; the center of the upper surface of the bottom tire is provided with a positioning groove, the periphery of the positioning groove is respectively provided with a first-stage step part and a second-stage step part from inside to outside from top to bottom, an expansion sleeve is arranged in the positioning groove, the inner diameter of the expansion sleeve is matched with the outer diameter of the mandrel, the periphery of the first-stage step part is in clearance fit with a lower pressing ring, and the lower pressing ring is arranged at the upper part of the second-stage step part; the upper press tire comprises an upper plate, a lower plate and a plurality of support rods for connecting the upper plate and the lower plate together, wherein a convex part is arranged at the bottom of the lower plate, an upper press ring is sleeved on the periphery of the convex part, and a plurality of bolt holes are formed in the lower plate.

Based on above-mentioned technical scheme, the tang cooperates with the machine of folding under the structure of end child, goes up the inner spigot and places and fix a position the setting for the cover that rises, including the dabber is placed, goes up outer tang and is down clamp ring location usefulness, and the tang is clearance fit with the clamp ring, reaches light business turn over just can.

Preferably, the support rod is an iron rod, and the upper plate and the lower plate are connected through welding of the iron rod. The length of the iron rod, namely the length of the supporting rod, is determined according to different heights of iron cores with different specifications, so that the purpose of not manufacturing too many tools is achieved, and the universality is achieved.

It should be noted that, the upper tire pressing body can be formed by welding and connecting an upper plate and a lower plate and a plurality of small iron rods in the middle, the size of the lower plate is the same as that of the square boss of the lower pressing plate, the difference is that eight holes for inserting bolts are added on the lower plate, the shape of the upper plate can be smaller than that of the lower plate, but four gaps need to be added, so that the bolts can be conveniently screwed by a screw wrench.

Furthermore, the laminating tire also comprises a shape finishing tire assembly, the shape finishing tire assembly comprises two right-angle baffle plates, and each right-angle baffle plate comprises a side fixing plate, a front fixing plate and a rear fixing plate which are detachably connected with each other in a right angle; the two right-angle baffles can be spliced into a square shape, the end parts of the side fixing plates of the right-angle baffles are provided with hinge seats, the end parts of the front and rear fixing plates of the right-angle baffles are provided with fixing seats, and the hinge seats and the fixing seats at corresponding positions are fixed through hinge rods and nuts; and the front and rear fixing plates are provided with compression screws.

Based on above-mentioned technical scheme, guarantee that the appearance is neat, set up an appearance arrangement cover (appearance arrangement child subassembly), this arrangement cover not only can freely remove, it is firm still to lock, can also conveniently arrange the punching sheet in order.

Preferably, the upper plate and the lower plate are square plates, the size of the upper plate is smaller than that of the lower plate, and four side edges of the upper plate are respectively provided with four notches.

Based on above-mentioned technical scheme, increase four breachs, make things convenient for the screw spanner to screw up the bolt.

Further, the width of the one-step part is smaller than that of the lower pressing ring.

Based on the technical scheme, the overall dimension of the square boss on the bottom tire is smaller than that of the pressing ring, the pressing ring is an outer finishing ring, and a space is reserved for finishing the pressing ring and punching.

Furthermore, the bottom tire is of a square structure, two opposite sides of the bottom tire are respectively provided with two connecting plates, and two sides of the bottom tire, which are not provided with the connecting plates, are respectively provided with two rectangular notches.

Based on above-mentioned technical scheme, in order to alleviate the weight of end child, can also make outer arrangement circle freely remove on end child, specifically can install two fishplates about end child, need have two rectangle breachs around, the breach size is as long as use the jaw free business turn over end child of hoist and mount. ,

furthermore, after the inner circle and the outer circle are processed, the expansion sleeve is cut into three equal parts with less than 3 ~ 4mm, and the outer diameter of the expansion sleeve is smaller than the inner diameter of the punching sheet by 3 ~ 5 mm.

Furthermore, the inner diameter of the expansion sleeve and the mandrel adopt a self-locking angle, and when the mandrel and the expansion sleeve are completely matched with each other in the self-locking angle, the outer diameter of the expansion sleeve is completely expanded, wherein the self-locking angle of the mandrel and the expansion sleeve is 1 ~ 3 degrees.

Based on the technical scheme, in view of the fact that the outer diameter of the expansion sleeve is consistent with the inner diameter of the punching sheet, in order to enable the expansion sleeve to be capable of tensioning the inner circle of the punching sheet and to be rapid when the punching sheet is installed, the press tire is cut into three equal parts with less than 3 ~ 4mm after the expansion sleeve is processed into the inner circle and the outer circle, at the moment, the outer diameter of the expansion sleeve is smaller than the inner diameter of the punching sheet, the inner diameter of the expansion sleeve and the mandrel adopt a self-locking angle, when the mandrel and the expansion sleeve are completely matched with each other in the self-locking angle, the outer diameter of the expansion sleeve can be completely tensioned, and the self-locking angle of the mandrel and the expansion sleeve needs to.

On the other hand, the technical scheme provided by the invention also comprises a method for laminating the square stator punching sheet by adopting the laminating tire, and the method specifically comprises the steps of inserting an expansion sleeve into a positioning groove of a bottom tire after the bottom tire is fixed, installing a lower pressing ring to the periphery of a first-stage step part, laminating the well-arranged punching sheets outside the expansion sleeve, installing an upper pressing tire, tensioning a mandrel downwards and pressing the upper pressing tire tightly, measuring whether the height is qualified, further finishing the appearance after the height is qualified, tensioning the mandrel, simultaneously pressurizing the upper pressing tire, inserting a plurality of long bolts into an iron core through the upper pressing tire during pressurization, fixing the bolts, and removing a fixing plate after the sheet installation is finished.

Furthermore, the fixed plate is removed by rotating the compression screw to eject the front fixed plate and the rear fixed plate.

Further, the appearance is further arranged after the measured height is qualified, namely, the two right-angle baffle plates are moved relatively, whether the protruding parts on the side surfaces of the front fixing plate and the rear fixing plate can be completely inserted into the side fixing plate or not is observed, if the protruding parts cannot be inserted into the side fixing plate or not, the appearance is arranged again until the protruding parts can be inserted into the side fixing plate smoothly, the hinge rods on the two sides are placed into the hinge seats respectively, the nuts are screwed down, and the whole appearance arranging tire is installed.

For further explanation of the invention, firstly, a fixed bottom tire is arranged on the laminating machine, and the table top is required to be large, so that the movement of the shape sorting ring is convenient; secondly, fixing and arranging the inner circle of the stator punching sheet by adopting a self-locking angle mandrel and an expansion sleeve; thirdly, in order to ensure the convenience of inserting the stator, two symmetrical groove sample rods are required to be designed; fourthly, the upper press tire can press the punching sheet and is convenient for inserting and screwing the eight bolts; fifthly, the appearance is guaranteed to be neat, the appearance arrangement tire assembly is arranged, the appearance arrangement tire assembly can move freely, the locking is firm, and punching sheets are convenient to arrange.

The invention has the beneficial effects that: the structure is more reasonable, the operation of being convenient for, it can guarantee to fold the iron core inside and outside neat.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a top view of the structure of the present invention;

FIG. 4 is a schematic view of a base tire;

FIG. 5 is a side view of the bottom tire;

in the figure: 1. the device comprises an upper pressing tire, 2, an expansion sleeve, 3, a mandrel, 4, a groove sample rod, 5, a bottom tire, 6, a connecting plate, 7, a screw, 8, a gasket, 9, a front fixing plate, a rear fixing plate, 10, a screw, 11, a side fixing plate, 12, a hinge seat, 13, a hinge rod, 14, a fixing seat, 15, a nut, 16, a compression screw, 17, a first-level step part, 18, a second-level step part, 19, a positioning groove, 20, a lower pressing ring, 21, an upper pressing ring, 22, an upper plate, 23, a lower plate, 24 and a supporting rod.

Detailed Description

The structure of the invention is further explained in the following with the attached drawings of the specification.

A square stator punching lamination tire comprises a bottom tire 5, a lower pressing ring 20, an upper pressing tire 1, an upper pressing ring 21, a mandrel 3 and an expansion sleeve 2; a positioning groove 19 is formed in the center of the upper surface of the bottom tire, a first-stage step part 17 and a second-stage step part 18 are respectively formed on the periphery of the positioning groove 19 from inside to outside from top to bottom, an expansion sleeve 2 is placed in the positioning groove 19, the inner diameter of the expansion sleeve 2 is matched with the outer diameter of the mandrel 3, a lower pressing ring 20 is in clearance fit with the periphery of the first-stage step part 17, and the lower pressing ring 20 is arranged on the upper part of the second-stage step part 18; the upper tire pressing 1 comprises an upper plate 22, a lower plate 23 and a plurality of support rods 24 for connecting the upper plate 22 and the lower plate 23 together, wherein a convex part is arranged at the bottom of the lower plate 23, an upper pressing ring 21 is sleeved on the periphery of the convex part, and a plurality of bolt holes are formed in the lower plate 23.

As shown in figure 1, the bottom tyre 5 has a structure that a lower spigot is matched with a laminating machine, an upper inner spigot is arranged for placing and positioning an expansion sleeve 2, a mandrel 3 is arranged in the lower spigot, the upper outer spigot is used for positioning a lower pressing ring 20, the spigot and the lower pressing ring 20 are in clearance fit, so that the bottom tyre can be easily put in and out, in order to reduce the weight of the bottom tyre 5 and enable an outer finishing ring to freely move on the bottom tyre 5,

preferably, the support rod 24 is an iron rod, and the upper plate 22 and the lower plate 23 are welded together by the iron rod. The length of the iron rod, namely the length of the supporting rod 24, is determined according to different heights of iron cores with different specifications, so that the purpose of not manufacturing too many tools is achieved, and the universality is achieved.

Further, the laminating tire further comprises a shape finishing tire assembly, the shape finishing tire assembly comprises two right-angle baffle plates, and each right-angle baffle plate comprises a side fixing plate 11, a front fixing plate 9 and a rear fixing plate 9 which are detachably connected with each other in a right angle; the two right-angle baffles can be spliced into a square shape, the end part of a side fixing plate 11 of each right-angle baffle is provided with a hinge seat 12, the end parts of front and rear fixing plates of each right-angle baffle are provided with a fixing seat 14, and the hinge seats 12 and the fixing seats 14 at corresponding positions are fixed through hinge rods 13 and nuts 15; and the front and rear fixing plates 9 are in threaded connection with compression screws 16.

As shown in fig. 2, the upper plate 22 and the lower plate 23 are both square plates, the size of the upper plate 22 is smaller than that of the lower plate 23, and four side edges of the upper plate 22 are respectively provided with four notches.

Further, the width of the one-step portion 17 is smaller than that of the lower clamping ring 20.

As shown in fig. 1 and 2, the square boss on the bottom tire 5 has a smaller overall dimension than the pressing ring, and is an outer finishing ring, and a space is reserved for finishing the pressing ring and punching.

Furthermore, the bottom tire 5 is of a square structure, two connecting plates 6 are respectively arranged on two opposite sides, and two rectangular notches are respectively arranged on two sides where the connecting plates 6 are not arranged.

As shown in fig. 2, two joint plates 6 are installed on the left and right of the bottom tire 5, and two rectangular notches are needed in the front and the back, and the size of the notch is only needed to be freely inserted into and removed from the bottom tire 5 by using a lifting jaw.

Furthermore, after the inner circle and the outer circle are processed, the expansion sleeve 2 is cut into trisections with less than 3 ~ 4mm, and the outer diameter of the expansion sleeve is smaller than the inner diameter of the punching sheet by 3 ~ 5 mm.

Further, the inner diameter of the expansion sleeve 2 and the mandrel 3 adopt a self-locking angle, wherein the self-locking angle of the mandrel and the expansion sleeve is 1 ~ 3 degrees, and when the mandrel 3 and the expansion sleeve 2 are completely matched with each other in self-locking angle, the outer diameter of the expansion sleeve 2 is completely expanded.

In view of the fact that the outer diameter of the expansion sleeve 2 is consistent with the inner diameter of the punching sheet, in order to enable the expansion sleeve to be capable of tensioning the inner circle of the punching sheet and to be rapid when the punching sheet is installed, the press tire 5 is cut into three equal parts each with the size of 3 ~ 4mm after the expansion sleeve 2 is machined into the inner circle and the outer circle, at the moment, the outer diameter of the expansion sleeve is smaller than the inner diameter of the punching sheet, the inner diameter of the expansion sleeve 2 and the mandrel 3 adopt a self-locking angle, when the mandrel 3 is completely matched with the self-locking angle of the expansion sleeve 2, the outer diameter of the expansion sleeve 2 can be fully tensioned, and in addition, the self-locking angle of the mandrel 3 and the expansion sleeve 2 needs.

On the other hand, the technical scheme provided by the invention also comprises a method for laminating the square stator punching sheet by adopting the laminating tire, which comprises the specific steps that after the bottom tire 5 is fixed, the mandrel 3 is screwed with the pull-down oil cylinder, the expansion sleeve 2 is inserted into the inner rabbet of the bottom tire 5, the lower pressing ring is firstly arranged, the prepared punched sheet is stacked outside the expansion sleeve 2 according to a certain direction, the pressed sheet is arranged in advance, then the pressing tire 1 is arranged, the mandrel 3 is tensioned downwards and tightly presses the upper pressing tire 1, the height is measured to be qualified, the appearance is further arranged after the height is measured to be qualified, the appearance of the punched sheet is required to be arranged, the shape of the punched sheet is square, the appearance is arranged and fixed conveniently, as can be clearly seen from figure 3, the front and rear fixing plates 9 and the serial number side fixing plates 11 are fixed together by two right-angle baffle plates by M12 screws 10, at this time, the two right, whether the convex parts on the side surfaces of the front and rear fixing plates 9 can be completely inserted into the side fixing plates 11 or not, if the convex parts cannot be completely inserted into the side fixing plates 11 or not, the appearance is finished again until the convex parts can be successfully inserted, the hinge rods 13 on the two sides are respectively placed on the respective hinge seats 12, nuts are screwed, and then the whole appearance finishing tire is installed. Further, the appearance of the iron core is finished again through the surrounding hollow parts, when the iron core is confirmed to be completely in place, the oil cylinder is started to tighten the mandrel 3, and meanwhile, the upper pressing tire 1 is pressed. The prepared eight long bolts are inserted into the iron core through the upper press tire while being pressurized, and then the bolts are fixed by a bolt wrench. Under the protection of the outer fixing plates (the front fixing plate 9, the rear fixing plate 9 and the side fixing plate 11), displacement does not occur between the punching sheet and the pressing ring in the process of screwing the bolt. After the mounting is finished, the dismounting of the outer fixing plate ejects the front and rear fixing plates 9 by the compression screw 16. The ejection process is that the compression screw 16 is screwed into a small number of threads when not in work, when the front and rear fixing plates need to be ejected, the compression screw completely penetrates through the front and rear fixing plates 9 to be abutted against the side fixing plate 11, and the boss of the side fixing plate 11 is separated from the groove of the front and rear fixing plates 9 by the ejection force generated by the compression screw 16. The batch iron core mounting proves that the set of mould is suitable for producing the stator iron core of the servo motor.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.