CN-224208390-U - Dispensing tool for stepping motor rotor

CN224208390UCN 224208390 UCN224208390 UCN 224208390UCN-224208390-U

Abstract

The utility model discloses a dispensing tool for a stepping motor rotor, which is used for assisting in dispensing assembly of a magnetic ring of the stepping motor rotor and a rotating shaft, and comprises a bottom plate and a fixed plate, wherein the fixed plate is arranged on the bottom plate, a limiting groove is formed in the bottom plate, the groove depth of the limiting groove is equal to the shaft extension length of the rotating shaft extending out of the magnetic ring, a positioning hole is formed in the fixed plate corresponding to the limiting groove, and the aperture of the positioning hole is larger than the groove width of the limiting groove, so that the positioning hole is matched with the limiting groove to form a stepping groove. The glue dispensing tool is simple in structure, high in machining precision and high in machining efficiency, the limiting groove is of a groove structure, machining difficulty is reduced, groove depth consistency can be guaranteed, shaft extension length tolerance of a stepping motor rotor is effectively reduced, and assembly precision and production efficiency of the stepping motor rotor are remarkably improved.

Inventors

LIU WEIMIN
WU YONGQI
HE LINFAN
DENG WENLONG

Assignees

深圳斯玛尔特微电机有限公司

Dates

Publication Date: 20260508
Application Date: 20250313

Claims (10)

1. The utility model provides a frock is glued to point for assisting the magnet ring of step motor rotor and the equipment of gluing of pivot, its characterized in that includes bottom plate and fixed plate, the fixed plate is located on the bottom plate, be equipped with the spacing groove on the bottom plate, the fixed plate corresponds the spacing groove is equipped with the locating hole, the aperture of locating hole is greater than the slot width of spacing groove, so that the locating hole with the spacing groove cooperation forms the step groove.
2. The dispensing tool of claim 1, wherein the limiting groove is a through groove, and the limiting groove is communicated with the side surfaces of the two opposite sides of the bottom plate.
3. The dispensing tool according to claim 2, wherein the fixing plate is provided with a plurality of positioning holes along the length direction of the through groove.
4. The dispensing tool of claim 2, wherein the limit groove comprises a first through groove and a second through groove, the first through groove extends along a width direction of the bottom plate, and the second through groove extends along a length direction of the bottom plate.
5. The dispensing tool of claim 2, wherein the groove bottom of the limiting groove is an abrasive surface.
6. The dispensing tooling of claim 1, wherein the shape of the locating hole is adapted to the shape of the magnetic ring.
7. The dispensing tool of claim 1, further comprising a rubber pad and a first bolt, wherein the rubber pad is arranged on one side of the bottom plate away from the fixed plate, a screw hole is formed in the bottom plate, a mounting hole is formed in the rubber pad, and the first bolt penetrates through the mounting hole and is in threaded connection with the screw hole.
8. The dispensing tool of claim 1, wherein the fixing plate is detachably disposed on the bottom plate.
9. The dispensing tool of claim 8, further comprising a fastening assembly, one end of the fastening assembly being detachably connected to the base plate, the other end of the fastening assembly being pressed against the fixing plate.
10. The dispensing tool according to claim 9, wherein the fastening assembly comprises a second bolt, a screw hole is formed in the bottom plate, a through hole is formed in the fixing plate corresponding to the screw hole, and the second bolt penetrates through the through hole and is in threaded connection with the screw hole.

Description

Dispensing tool for stepping motor rotor Technical Field The utility model relates to the technical field of motor manufacturing tools, in particular to a dispensing tool for a stepping motor rotor. Background In the field of stepper motor manufacturing, conventional production processes for rotor assemblies include a dispensing process for rotating shafts and magnetic rings. The process needs to use a special tool, a plurality of stepped grooves are formed in the tool to meet the requirement of batch production, and the tool guarantees the precision requirement of the shaft extension size through the stepped grooves, wherein the tool usually adopts an integrated body plate, and a plurality of stepped holes are formed in the plate body by drilling, so that the processing requirements of the tool on low cost and high efficiency are met. However, the existing tooling has the problem that the machining precision of stepped holes is poor, the consistency of the drilling depth of each stepped hole is poor, the consistency of the shaft extension length of a rotor of a stepping motor is poor, the shaft extension size of a rotating shaft is easy to generate size deviation, the size deviation possibly causes the shaft extension parameters of batch products to exceed the qualified range, the control precision of the gear assembly height of a downstream customer is further affected, and finally the meshing of a transmission system is inconsistent, so that the product quality of the stepping motor is affected. Disclosure of utility model The utility model aims to solve the technical problems of poor machining precision and low groove depth consistency of a stepped hole of an existing tool by providing a dispensing tool for a stepping motor rotor. In order to solve the technical problems, the technical scheme includes that the glue dispensing fixture of the stepping motor rotor is used for assisting glue dispensing assembly of a magnetic ring of the stepping motor rotor and a rotating shaft, and comprises a base plate and a fixing plate, wherein the fixing plate is arranged on the base plate, a limiting groove is formed in the base plate, the groove depth of the limiting groove is equal to the shaft extension length of the rotating shaft extending out of the magnetic ring, a positioning hole is formed in the fixing plate corresponding to the limiting groove, and the aperture of the positioning hole is larger than the groove width of the limiting groove, so that the positioning hole and the limiting groove are matched to form a stepped groove. Further, the limit groove is a through groove, and the limit groove is communicated with the side surfaces of the two opposite sides of the bottom plate. Further, the fixing plate is provided with a plurality of positioning holes along the length direction of the through groove. Further, the limit groove comprises a first through groove and a second through groove, the first through groove is communicated with the bottom plate along the width direction of the bottom plate, and the second through groove is communicated with the bottom plate along the length direction of the bottom plate. Further, the bottom of the limit groove is a grinding surface. Further, the shape of the positioning hole is matched with the shape of the magnetic ring. Further, still include cushion and first bolt, the cushion is located the bottom plate is kept away from one side of fixed plate, be equipped with the screw on the bottom plate, be equipped with the mounting hole on the cushion, first bolt pass the mounting hole and with screw threaded connection. Further, the fixing plate is detachably arranged on the bottom plate. Further, the fixing plate comprises a fastening component, one end of the fastening component is detachably connected with the bottom plate, and the other end of the fastening component is pressed against the fixing plate. Further, the fastening assembly comprises a second bolt, a screw hole is formed in the bottom plate, a through hole is formed in the fixing plate corresponding to the screw hole, and the second bolt penetrates through the through hole and is in threaded connection with the screw hole. The glue dispensing tool for the stepping motor rotor has the advantages that the limiting grooves and the positioning holes are respectively formed in the base plate and the fixed plate, the limiting grooves and the positioning holes are matched to form the stepped grooves, the magnetic rings are arranged in the positioning holes and axially positioned by the surfaces of the base plate, the rotating shafts extend into the magnetic rings and are axially positioned by the limiting grooves, and the consistency of the shaft extension lengths of the rotating shafts extending into the magnetic rings can be effectively improved. The glue dispensing tool is simple in structure, high in machining precision and high in machining efficiency, the limiting groove is of a groove structure, machining