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CN-224218239-U - Compaction device for motor iron core

CN224218239UCN 224218239 UCN224218239 UCN 224218239UCN-224218239-U

Abstract

The application discloses a compaction device for a motor iron core, which comprises a bottom plate, wherein a support is arranged on the bottom plate, a first driving part is inversely arranged on the top surface of the support, a pressing plate for compacting the iron core is arranged at the output end of the first driving part, a placing plate is arranged under the first driving part and is arranged on the bottom plate in a sliding manner along the up-down direction, a central positioning column matched with a central hole of the iron core is arranged on the placing plate, the central positioning column penetrates through the placing plate and the bottom plate, a connecting plate is arranged at one end of the central positioning column, which is far away from the first driving part, and is provided with a plurality of elastic parts connected with the bottom plate, the placing plate and the central positioning column penetrate through the placing plate and the bottom plate, so that the positioning of the iron core can be kept in the whole compaction process, the central deviation is reduced, the bottom connecting plate and the elastic parts play roles of buffering and self-adapting adjustment, when the pressing plate is pressed down and the pressure is changed, the elastic parts can absorb impact force, damage to the device due to rigid collision or influence the iron core precision is reduced, and meanwhile the elastic parts help the central positioning column reset after compaction is completed.

Inventors

  • CHEN XIAOMING

Assignees

  • 苏州明运刚机电有限公司

Dates

Publication Date
20260508
Application Date
20250331

Claims (8)

  1. 1. A compacting device for a motor iron core is characterized by comprising a bottom plate (1), wherein the bottom plate (1) is provided with a support (2), a first driving part (3) is inversely arranged on the top surface of the support (2), a pressing plate (31) for compacting the iron core is arranged at the output end of the first driving part (3), a placing plate (4) is arranged right below the first driving part (3) and positioned below the first driving part (1), a central positioning column (5) matched with a central hole of the iron core is slidably arranged on the placing plate (4) along the up-down direction, positioning holes (41) for the central positioning column (5) to slide are formed in the placing plate (4) and the bottom plate (1), the central positioning column (5) penetrates through the placing plate (4) and the bottom plate (1), one end, far away from the first driving part (3), of the central positioning column (5) is provided with a connecting plate (6), and the connecting plate (6) is provided with a plurality of elastic pieces (61) connected with the bottom plate (1).
  2. 2. A motor core compacting apparatus according to claim 1, wherein the inner side wall of the positioning hole (41) is provided with a plurality of balls (411) contacting with the center positioning column (5).
  3. 3. The device for compacting the motor core according to claim 2, wherein the center positioning column (5) comprises a first column (51) and a second column (52) connected with the first column (51), the second column (52) is provided with a plurality of sliding grooves (521) along the length direction of the second column corresponding to the balls (411), and the connecting plate (6) is arranged at one end of the second column (52) away from the first column (51).
  4. 4. A motor core compacting apparatus according to claim 3, wherein the elastic members (61) are circumferentially arranged around the post two (52).
  5. 5. The device for compacting the motor core according to claim 3, wherein the top surface of the first post (51) is provided with a cover plate (7) which is matched with the outer diameter of the core, and the cover plate (7) is provided with a fixed inserting groove (71) for inserting the first post (51).
  6. 6. A motor core compacting apparatus according to claim 5, characterized in that the cover plate (7) is provided with an elastic pad (72) on a side close to the placement plate (4).
  7. 7. The device for compacting the motor iron core according to claim 1, wherein two sides of the bracket (2) are horizontally provided with a second driving part (8), the output end of the second driving part (8) is provided with a clamping plate (81) which can be abutted against the iron core, and the clamping plate (81) is arranged along the up-down direction and the length of the clamping plate is adapted to the stacking height of the iron core.
  8. 8. The device for compacting the motor core according to claim 7, wherein an arc-shaped positioning groove (811) which is attached to the outer side wall of the core is formed in one side, close to the center positioning column (5), of the clamping plate (81).

Description

Compaction device for motor iron core Technical Field The application relates to the technical field of motor iron core processing, in particular to a compaction device for a motor iron core. Background The motor iron core is used as a key component of the motor, and the performance quality of the motor iron core directly relates to the running efficiency, the stability and the service life of the motor. The motor iron core is generally formed by laminating a large number of thin silicon steel sheets after being precisely punched, and the laminating quality of the silicon steel sheets is very important. If the lamination is not tight, the magnetic resistance of the iron core can be increased, so that the magnetic flux leakage and the iron loss are increased, the motor efficiency is reduced, and the reliability of the motor is affected. In order to ensure close adhesion of the silicon steel sheets, a compacting device has been developed. The compaction device in the prior art mainly comprises a hydraulic pump station, a hydraulic cylinder, a die and an intelligent control system. During operation, the motor iron core to be compacted is accurately placed in the special die, the hydraulic pump station transmits high-pressure oil to the hydraulic cylinder, the piston of the hydraulic cylinder is driven to generate strong and stable axial thrust, and the thrust is uniformly applied to the surface of the iron core through the die to force the silicon steel sheet to be compacted layer by layer. In view of the above related art, the inventors believe that the core piece is prone to misalignment and offset in the central region during compaction, resulting in a decrease in accuracy index such as roundness and coaxiality of the core center hole. Disclosure of utility model The application aims to provide a compaction device for a motor iron core, which aims to solve the problem that a silicon steel sheet is easy to generate dislocation and offset in a central area in the compaction process. The application provides a compacting device for a motor iron core, which adopts the following technical scheme: a compacting device for motor iron cores comprises a bottom plate, wherein the bottom plate is provided with a support, a first driving piece is inversely arranged on the top surface of the support, a pressing plate for compacting the iron cores is arranged at the output end of the first driving piece, a placing plate is arranged right below the first driving piece, the placing plate is provided with a central positioning column which is matched with a core central hole in a sliding mode along the up-down direction, positioning holes for the central positioning column to slide are formed in the placing plate and the bottom plate, the central positioning column penetrates through the placing plate and the bottom plate, a connecting plate is arranged at one end, far away from the first driving piece, of the central positioning column, and a plurality of elastic pieces connected with the bottom plate are arranged on the connecting plate. Through adopting the technical scheme, the inverted driving piece I and the pressing plate are combined to realize the compaction function, the placing plate and the central positioning column penetrate through the placing plate and the bottom plate, the positioning of the center of the iron core can be kept in the whole compaction process, the center offset is reduced, the bottom connecting plate and the elastic piece play a role in buffering and self-adaptive adjustment, when the pressing plate is pressed down and the pressure is changed, the elastic piece can absorb the impact force, the damage to the device due to rigid collision or the influence on the accuracy of the iron core is reduced, and meanwhile, the elastic piece helps the central positioning column to reset after the compaction is completed. Optionally, the inner side wall of the positioning hole is provided with a plurality of balls which are contacted with the central positioning column. Through adopting above-mentioned technical scheme, the ball has reduced the frictional force of center reference column in the slip in-process, makes center reference column more smooth and easy when being along with the iron core pressurized reciprocates, and then has guaranteed the timeliness and the accuracy of center reference column to the iron core centre bore location, helps promoting the shaping precision of iron core centre bore. Optionally, the center positioning post includes post one and the post second that is connected with post one, a plurality of spouts have been seted up along its length direction correspondence ball to post two, the connecting plate sets up the one end that keeps away from post one at post two. By adopting the technical scheme, the sliding groove enables the rolling track of the ball to be more regular on one hand, reduces the shaking risk of the central positioning column caused by the messy channeling o