阅读说明：本技术 一种用于角位移传感器定子叠片叠压的工装 (Tool for laminating stator laminations of angular displacement sensor ) 是由 彭春增 葛闯 田宋安 王尊敬 张磊 于 2020-12-21 设计创作，主要内容包括：本发明提供了一种用于角位移传感器定子叠片叠压的工装,所述工装包括：基座；活动定位组件,设置在基座上,用于限位待叠压的定子叠片；限位销,设置在基座上,用于限制所述活动定位组件的前后移动范围；定位芯棒,设置在基座上,用于进一步对定子叠片进行限位；固定定位杆,设置在限位销对面,用于与活动定位组件配合定位定子叠片；螺杆,设置在基座上,用于对定子叠片施加粘合压力；活动限位块,用于保证所述螺杆施加的粘合压力均匀以及螺杆向下旋拧时定子叠片不会跟转。本发明所提供的用于角位移传感器定子叠片叠压的工装,采用定位芯棒实现定子叠片内孔的限位,防止各个定子叠片在径向方向窜动,保证定子叠片内圈对齐。(The invention provides a tool for laminating angular displacement sensor stator laminations, which comprises: a base; the movable positioning assembly is arranged on the base and used for limiting the stator lamination to be laminated; the limiting pin is arranged on the base and used for limiting the front-back movement range of the movable positioning component; the positioning core rod is arranged on the base and used for further limiting the stator lamination; the fixed positioning rod is arranged opposite to the limiting pin and is used for matching with the movable positioning assembly to position the stator lamination; the screw rod is arranged on the base and used for applying bonding pressure to the stator lamination; and the movable limiting block is used for ensuring that the bonding pressure applied by the screw is uniform and the stator lamination cannot rotate when the screw is screwed downwards. The tool for laminating the stator laminations of the angular displacement sensor, provided by the invention, realizes the limiting of the inner holes of the stator laminations by adopting the positioning core rods, prevents each stator lamination from moving in the radial direction, and ensures the alignment of the inner rings of the stator laminations.)

1. The utility model provides a frock that is used for angle displacement sensor stator lamination to fold to press which characterized in that, the frock includes:

a base;

the movable positioning assembly is arranged on the base and used for limiting the stator lamination to be laminated;

the limiting pin is arranged on the base and used for limiting the front-back movement range of the movable positioning component;

the positioning core rod is arranged on the base and used for further limiting the stator lamination;

the fixed positioning rod is arranged opposite to the limiting pin and is used for matching with the movable positioning assembly to position the stator lamination;

the screw rod is arranged on the base and used for applying bonding pressure to the stator lamination;

and the movable limiting block is used for ensuring that the bonding pressure applied by the screw is uniform and the stator lamination cannot rotate when the screw is screwed downwards.

2. The tool for lamination of a stator of an angular displacement sensor according to claim 1, wherein the base is provided with a working platform for lamination of the stator laminations, and the working platform is provided with a through hole.

3. The tooling for lamination of an angular displacement sensor stator of claim 1, wherein the movable positioning assembly comprises a fixed block connected to the base and a threaded screw and a movable block connected to the fixed block.

4. The tooling for laminating an angular displacement sensor stator lamination according to claim 3, wherein the movable block is provided with an arc surface matched with the limiting notch of the stator lamination and a notch for movably connecting with a screwing screw.

5. The tooling for lamination of a stator of an angular displacement sensor according to claim 4, wherein the screw-on screw is provided with threads for mating with a fixed block and a groove for articulation with a movable block.

6. The tool for laminating the stator laminations of the angular displacement sensor according to claim 2, wherein the positioning core rod is vertically inserted into the through hole of the base, and the cylindrical surface of the core rod is tightly matched with the through hole; the stator lamination is sleeved into the positioning core rod; the outer diameter of the cylindrical surface of the positioning core rod is tightly matched with the inner diameter of the stator lamination.

7. The tooling for laminating the angular displacement sensor stator laminations according to claim 1, wherein the arc surfaces of the fixed positioning rods are in close contact with the limiting notches of the stator laminations.

8. The tool for laminating a stator lamination of an angular displacement sensor according to claim 1, wherein the screw is in threaded connection with the base, and a through hole is formed in the middle of the screw and used for ejecting the positioning core rod.

9. The tool for lamination of a stator of an angular displacement sensor according to claim 8, wherein the screw is provided with a flat cut surface for use of a torque wrench.

10. The tooling for lamination of a stator of an angular displacement sensor according to claim 2, wherein the movable stopper is provided with two bosses, and the base is provided with a groove tightly fitting the bosses.

Technical Field

The invention belongs to the technical field of angular displacement sensors, and particularly relates to a tool for laminating stator laminations of an angular displacement sensor.

Background

As the mechanical transmission system on the aircraft is replaced more and more by the electronic control system, the application of the resolver type angular displacement sensor in the aircraft system is also more and more extensive. They provide precise angular position information for the flight control system.

The rotary transformer type angular displacement sensor belongs to a high-precision sensor, the measurement precision can reach within 0.25% FS, the performance of the sensor is easily influenced by unstable factors in the assembling process, and therefore a tool is needed in the assembling process to guarantee the assembling consistency. One of the most important links in the assembly process is the preparation of the stator core, and dozens of stator laminations are laminated together after being sprayed with glue. This tends to make it difficult to align the laminations, resulting in an asymmetrical stator core geometry that ultimately affects the output characteristics of the product. In addition, the laminating tool can ensure that the laminated stator is aligned, and simultaneously, the laminating pressure can be uniformly acted on the laminated stator, so that the laminated stator core is prevented from cracking. Therefore, the stator lamination laminating tool is extremely important for the production of the sensor.

Therefore, it is desirable to provide a tool for achieving orderly stacking of a plurality of stator laminations.

Disclosure of Invention

In order to solve the above problems, the present invention aims to provide a stator lamination stacking tool which is scientific and reasonable and is convenient to operate and disassemble, so as to stack a plurality of stator laminations in order, ensure that the pressure applied from the outside is uniformly applied to the stator laminations in the stacking process, release the pressure in the stacking, heating and curing process, and ensure that the stator core is not cracked after the preparation is completed.

The invention provides a tool for laminating angular displacement sensor stator laminations, which comprises: a base; the movable positioning assembly is arranged on the base and used for limiting the stator lamination to be laminated; the limiting pin is arranged on the base and used for limiting the front-back movement range of the movable positioning component; the positioning core rod is arranged on the base and used for further limiting the stator lamination; the fixed positioning rod is arranged opposite to the limiting pin and is used for matching with the movable positioning assembly to position the stator lamination; the screw rod is arranged on the base and used for applying bonding pressure to the stator lamination; and the movable limiting block is used for ensuring that the bonding pressure applied by the screw is uniform and the stator lamination cannot rotate when the screw is screwed downwards.

The tool for laminating the angular displacement sensor stator lamination is also characterized in that a working platform for laminating the stator lamination is arranged on the base, and a through hole is formed in the working platform.

The tool for laminating the angular displacement sensor stator lamination also has the characteristic that the movable positioning assembly comprises a fixed block connected with the base, and a screwing screw and a movable block which are connected to the fixed block.

The tool for laminating the angular displacement sensor stator lamination also has the characteristic that the movable block is provided with an arc surface matched with the limiting notch of the stator lamination and a notch movably connected with a screwing screw.

The tool for laminating the angular displacement sensor stator lamination is also characterized in that the screwing screw is provided with a thread matched with the fixed block and a groove for movably connecting with the movable block.

The tool for laminating the angular displacement sensor stator lamination also has the characteristics that the positioning core rod is vertically inserted into the through hole of the base, and the cylindrical surface of the core rod is tightly matched with the through hole; the stator lamination is sleeved into the positioning core rod; the outer diameter of the cylindrical surface of the positioning core rod is tightly matched with the inner diameter of the stator lamination.

The tool for laminating the angular displacement sensor stator lamination also has the characteristic that the arc surface of the fixed positioning rod is tightly attached to the limiting notch of the stator lamination.

The tool for laminating the angular displacement sensor stator lamination is also characterized in that the screw rod is in threaded connection with the base, and a through hole is formed in the middle of the screw rod and used for ejecting the positioning core rod.

The tool for laminating the angular displacement sensor stator lamination also has the characteristic that the screw is provided with a tangent plane for using a torque wrench.

The tool for laminating the angular displacement sensor stator lamination is also characterized in that the movable limiting block is provided with two bosses, and the base is provided with a groove tightly matched with the bosses.

The tooling for laminating the angular displacement sensor stator lamination also has the characteristic that the tooling also comprises a gasket.

Advantageous effects

The tool for laminating the stator laminations of the angular displacement sensor, provided by the invention, realizes the limiting of the inner holes of the stator laminations by adopting the positioning core rods, prevents each stator lamination from moving in the radial direction, and ensures the alignment of the inner rings of the stator laminations.

The tool for laminating the stator laminations of the angular displacement sensor, provided by the invention, can be screwed to a specified position when the stator laminations are placed by adopting the movable positioning assembly, so that the arc surfaces of the movable positioning assembly are attached to the stator laminations to realize limiting. When the stator core is heated and cured, the stator core can be withdrawn, and the limitation on the stator lamination is cancelled, so that the stress in the stator core is released.

The tool for laminating the stator laminations of the angular displacement sensor adopts the fixed positioning rod to limit the circumference of the stator laminations again, and can provide two limiting points on the circumference of the stator laminations through the matching use of the fixed positioning rod and the movable positioning assembly, so that the stator laminations are further prevented from rotating on the circumference.

According to the tool for laminating the stator laminations of the angular displacement sensor, the movable limiting blocks are adopted to realize that the force of the screw can be uniformly transmitted to the stator laminations when the stator laminations are laminated, and the stator laminations cannot rotate in the process of screwing the screw downwards, so that the uniformity of the stator laminations is effectively guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of a tooling for laminating angular displacement sensor stator laminations provided by the present invention;

FIG. 2 is a schematic structural view of a movable block of a movable assembly in the tooling provided by the present invention;

FIG. 3 is a schematic view of a positioning core rod structure in the tooling provided by the present invention;

FIG. 4 is a schematic view of a screwing screw structure of a movable assembly in the tooling of the present invention;

FIG. 5 is a schematic structural view of a movable limiting block in the tool provided by the present invention;

FIG. 6 is a schematic structural view of a screw in the tool provided by the present invention;

FIG. 7 is a schematic structural diagram of a spacer block in the tooling provided by the present invention;

FIG. 8 is a schematic structural diagram of a base in the tool provided by the present invention;

fig. 9 is a schematic structural view of a fixed block of a movable assembly in the tool provided by the present invention.

Detailed Description

The present invention is further described in detail with reference to the drawings and examples, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functional, methodological, or structural equivalents of these embodiments or substitutions may be included in the scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing and simplifying the description of the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; 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 meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-9, the present embodiment provides a tooling for lamination of a stator of an angular displacement sensor, the tooling comprising: a base 6; the movable positioning assembly 1 is arranged on the base 6 and used for limiting the stator lamination 5 to be laminated; the limiting pin 2 is arranged on the base 6 and used for limiting the front-back movement range of the movable positioning component 1; the positioning core rod 3 is arranged on the base 6 and used for further limiting the stator lamination 5; the fixed positioning rod 7 is arranged opposite to the limiting pin 2 and is used for matching with the movable positioning assembly 1 to position the stator lamination 5; the screw 9 is arranged on the base 6 for applying a bonding pressure to the stator lamination 5; the movable limiting block 8 is used for ensuring that the bonding pressure exerted by the screw rod 9 is uniform; a spacer 4.

In the above embodiment, the positioning core rod 3 is used to limit the inner hole of the stator lamination 5, so as to prevent each stator lamination 5 from moving in the radial direction and ensure the alignment of the inner ring of the stator lamination 5. The movable positioning assembly 1 can be screwed to a designated position when the stator lamination 5 is placed, so that the circular arc surface of the movable positioning assembly is attached to the stator lamination 5 to realize limiting. When the heating and curing are carried out, the stator lamination 5 can be withdrawn, and the limitation on the stator lamination is cancelled, so that the stress in the stator core is released. Adopt fixed position pole 7, spacing once more on stator lamination 5's circumference, through the cooperation with activity locating component 1 use, can provide two limit points again on stator lamination 5 circumference, further prevent that stator lamination 5 from rotating on the circumference. When the stator lamination 5 is laminated by adopting the movable limiting block 8, the force of the screw 9 can be uniformly transmitted to the stator lamination 5, and the stator lamination 5 can not rotate along with the screw in the downward screwing process, so that the uniformity of the stator lamination 5 is effectively ensured.

In some embodiments, the base 6 is provided with a working platform for laminating the stator lamination 5, and the working platform is provided with a through hole. For convenience of processing, the base 6 can be of a split structure, and the upper end and the lower end of the base are fixedly connected through bolts.

In some embodiments, the movable positioning assembly 1 includes a fixed block connected to the base 6, and a screw and a movable block connected to the fixed block. Before stator lamination 5 is placed, can twist to the position of spacer pin 2, and arc surface 10a on its movable block can be pasted tightly with the spacing breach of stator lamination 5 to the realization is spacing to stator lamination 5. After laminating, whole frock heats the solidification along with stator lamination 5, can twist the activity locating component 1 back this moment, keeps away from stator lamination 5, avoids stator lamination 5 to lead to internal stress concentration because of spacing department too much, leads to the fact the solidification back fracture. The movable block is provided with an arc surface 10a matched with the limiting notch of the stator lamination 5 and a notch 10b used for being movably connected with a screwing screw. The screwing screw is provided with threads matched with the fixed block and a groove 16 for movably connecting with the movable block. The fixing block is provided with two through holes 21 and 23 for fixing with the base

In the above embodiment, the arc surface 10a is closely attached to the limiting notch of the stator lamination 5, so that the stator lamination 5 is limited. The back and forth movement of the movable block can be achieved by catching the groove 16 for screwing the screw on the notch 10b of the movable block. Specifically, the threaded portion 15 of the screw is engaged with the threaded hole 22 of the fixed block, and the screw can be freely screwed in and out. At this time, the groove 16 for screwing the screw is clamped on the notch 10b of the movable block to hook the movable block, so that the movable block can move back and forth.

In some embodiments, the positioning core rod 3 is vertically inserted into the through hole of the base 6, and the cylindrical surface 11 of the core rod 3 is tightly matched with the through hole, so that the positioning core rod 3 can be ensured to be vertical to the base 6; the stator lamination 5 is sleeved into the positioning core rod 3 from top to bottom, falls to the bottom and is flattened; the outer diameter of the cylindrical surface 12 of the positioning core rod 3 is tightly matched with the inner diameter of the stator lamination 5 so as to achieve limiting. The base 6 is further provided with a limiting device parallel to the surface of the working platform, and the limiting device is arranged at the lower end of the through hole and used for limiting the positioning core rod 3 after the positioning core rod 3 is inserted into the through hole. The limiting device can be a limiting rod or a limiting plate.

In some embodiments, the arc surface of the fixed positioning rod 7 is the same as the arc surface 10a of the movable block on the movable positioning assembly 1, and is also closely attached to the limiting notch of the stator lamination 5, so that the stator lamination 5 is limited. Adopt fixed position pole 7, spacing once more on stator lamination 5's circumference, through the cooperation with adopting activity locating component 1 to use, can provide two limit points on the circumference, further prevent stator lamination 5 and rotate on the circumference, make the lamination more neat.

In some embodiments, the screw 9 is in threaded connection with the base 6, and a through hole 18b is provided in the middle of the screw 9, and the through hole 18b is used for ejecting the positioning core rod 3. The function of the screw 9 is to create a downward pressure by screwing its thread 17 onto the internal thread 12 of the base 6, so as to ensure that the glue on the stator lamination 5 is effectively cured and the adhesion is improved. The screw 9 is provided with a flat cut surface 18a for using a torque wrench. The middle of the screw 9 is provided with a through hole 18b, which is used for ejecting the positioning core rod 3 out by using a round rod when the round rod is hot during heating and curing, and at the moment, the stator lamination 5 is aligned without limiting. The limitation of the positioning core rod 3 is cancelled, so that the internal stress of the stator core is released. The tangential plane 18a of the screw is such that the screw can be used with a torque wrench during screwing up or screwing down. The use of the torque wrench can ensure that the pressure of each batch of laminated stator cores is the same. Because the laminating pressure of the stator lamination 5 can influence the magnetic conductivity of the stator lamination, and the magnetic conductivity directly influences the output characteristic of the product, the performance consistency of the stator core can be ensured by adopting quantitative pressure.

In the above embodiment, the positioning core rod 3 can be ejected while hot by using a round rod through the through hole 18b of the screw 9 during the heating curing. At this moment, because the stator lamination 5 is aligned, the limitation is not needed, the limitation of the positioning core rod 3 is cancelled, the release of the internal stress of the stator core is facilitated, and more importantly, the situation that the positioning core rod 3 is bonded with the stator core after cooling, the stator core is difficult to extrude from the stator core, and the stator core is deformed due to the fact that the positioning core rod 3 is extruded by using overlarge pressure can be avoided. In addition, the pressure can be continuously applied to the stator core in the whole process, and the curing of the glue is facilitated.

In some embodiments, the function of the movable limiting block 8 is to enable the force of the screw 9 to be evenly and smoothly transmitted to the stator lamination 5 when the stator lamination 5 is laminated, which is mainly achieved by the tight fit between the two bosses 13 of the movable limiting block 8 and the grooves 20 on the through hole of the base 6. In addition, the movable limiting block 8 ensures that the stator lamination 5 cannot rotate in the downward screwing process of the screw 9, so that the uniformity of the stator lamination 5 is effectively ensured. And a cushion block is arranged below the movable limit block 8, and the pressure of the screw 9 is transmitted to the cushion block 19 through the movable limit block 8 and then transmitted to the stator lamination 5. The inner hole 14 of the movable limiting block 8 is used for the round rod required to pass when the core rod 3 is ejected and positioned.

In the above embodiment, when the stator lamination 5 is laminated by using the movable limiting block 8, the force of the screw 9 can be uniformly transmitted to the stator lamination 5, and the stator lamination 5 is prevented from rotating in the process of screwing the screw 9 downwards, so that the regularity of the stator lamination 5 is effectively ensured.

During the lamination process of the stator lamination 5, one limiting point exists in the radial direction, and two limiting points exist on the circumference, and the multi-limiting point mode is favorable for the orderly arrangement of the stator lamination 5, but brings over-limiting and stress concentration. Therefore, two limit points are removed during heating and curing, so that the stress in the stator core is fully released under heating, and the cracking of the stator core is effectively avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.