CN108687506B - Motor shaft positioning sleeve press-fitting device - Google Patents
Motor shaft positioning sleeve press-fitting device Download PDFInfo
- Publication number
- CN108687506B CN108687506B CN201810775616.4A CN201810775616A CN108687506B CN 108687506 B CN108687506 B CN 108687506B CN 201810775616 A CN201810775616 A CN 201810775616A CN 108687506 B CN108687506 B CN 108687506B
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- Prior art keywords
- groove
- motor shaft
- die
- face
- positioning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Abstract
The invention aims to provide a motor shaft positioning sleeve press-fitting device which can ensure the position of a positioning sleeve after press-fitting and can avoid damage to a motor shaft and a bearing. In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a motor shaft location cover pressure equipment device, includes the press, the pressure head downside of press is equipped with motor positioning device, motor positioning device includes mould and lower mould, go up the mould and be formed with run through from top to bottom in order to give way the first groove of giving way to the motor shaft, the lower mould is formed with runs through from top to bottom in order to give way the second groove of giving way to the motor shaft, go up the mould and support in the lower mould top through a plurality of compression springs, the pressure head is formed with the third groove of giving way and the fourth groove of giving way, the third groove of giving way is located the fourth groove of giving way downside and runs through the pressure head downwards, the third groove of giving way internal diameter is greater than the fourth groove of giving way internal diameter in order to be formed with step structure, the third groove of giving way is greater than along the ascending length of motor shaft axial of locating sleeve along the motor shaft.
Description
Technical Field
The invention relates to a device for assembling motor parts, in particular to a press-fitting device for press-fitting a positioning sleeve on a motor shaft of a long-shaft motor.
Background
In the prior art, sometimes, the positioning sleeve needs to be pressed on the motor shaft of the long-shaft motor, and the positioning sleeve needs to be pressed on one end of the motor shaft extending to the outside of the motor end cover, and a certain distance is reserved between the positioning sleeve and the rear end cover of the motor. The press fitting of the positioning sleeve has the following problems: the position of the positioning sleeve after being pressed is difficult to determine, and the positioning sleeve is stressed to drive the motor shaft to axially move so that the motor shaft and the bearing are damaged.
Disclosure of Invention
The invention aims to provide a motor shaft positioning sleeve press-fitting device which can ensure the position of a positioning sleeve after press-fitting and can avoid damage to a motor shaft and a bearing.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a motor shaft locating sleeve pressure equipment device, includes the press, the pressure head downside of press is equipped with motor positioning device, motor positioning device includes mould and lower mould, go up the mould and be formed with run through from top to bottom in order to give way to the motor shaft first groove of giving way, the lower mould is formed with runs through from top to bottom in order to give way to the motor shaft second groove of giving way, go up the mould and support in the lower mould top through a plurality of compression springs, compression spring upper and lower ends offset with last mould and lower mould respectively, compression spring cover is established on the movable rod, the movable rod upper end is fixed mutually with last mould, the movable rod lower extreme is equipped with the movable rod stopper, the lower mould is formed with and is used for the last first guiding hole that the movable rod passed through and is used for holding the lower first guiding hole of movable rod stopper, the lower first guiding hole is greater than the length of movable rod stopper along the motor shaft axial direction, the internal diameter of letting way of going on first guiding hole is greater than the upper diameter of letting way, the pressure head is formed with the third groove of giving way and fourth groove, the fourth groove is given way to give way to the motor shaft second groove, the fourth groove is used for the length of giving way to the fourth groove is taken way along the fourth groove, the fourth groove is taken way along the length of giving way to the fourth groove.
When the device is used, the motor is placed on the upper die, the motor shaft is positioned in the first yielding groove and the second yielding groove, the perpendicularity of the motor shaft is kept through the upper die and the lower die, so that the pressure head is positioned right above the motor shaft, then the positioning sleeve is sleeved at the upper end of the motor shaft, the pressure head is pressed down, so that the upper end of the motor shaft is positioned in the fourth yielding groove of the pressure head, so that the positioning sleeve is positioned in the third yielding groove of the pressure head, a step surface formed by the third yielding groove and the fourth yielding groove is contacted with the upper end surface of the positioning sleeve, then the pressure head is continuously pressed down to enable the positioning sleeve to be propped against the step surface, and the positioning sleeve is pressed on the motor shaft through the descending of the pressure head. When the lower end face of the pressure head is contacted with the rear end cover of the motor, the depth of the third abdication groove is larger than the axial length of the positioning sleeve, and the positioning sleeve and the rear end cover of the motor have a certain gap and cannot be contacted with the rear end cover of the motor; the distance between the positioning sleeve and the rear end cover of the motor is determined through the depth of the third abdication groove, so that the position of the positioning sleeve after press fitting is ensured. The device is provided with an upper die and a lower die, a plurality of compression springs are arranged between the upper die and the lower die, the positioning sleeve is stressed to enable partial force to be transmitted to the motor shaft, and the force transmitted to the motor shaft by the positioning sleeve is counteracted by the stressed deformation of the compression springs, so that the motor shaft is prevented from being stressed to move relative to the motor shell, the bending deformation of the motor shaft is prevented, and the damage to parts such as a bearing on the motor shaft is avoided.
Preferably, the pressure head is composed of a pressure head body and a positioning block, wherein an accommodating groove for accommodating the positioning block and the fourth abdicating groove are concavely formed in the lower end face of the pressure head body, the positioning block is fixed in the accommodating groove so that the third abdicating groove is communicated with the fourth abdicating groove, and the lower end face of the positioning block is positioned below the lower end face of the pressure head body. The arrangement makes the third abdication groove easier to process, so as to avoid the circumferential groove wall of the third abdication groove from propping against the positioning sleeve, and avoid the stress damage of the motor shaft. Preferably, the lower die is fixed with a plurality of guide posts, the upper die is formed with a plurality of second guide holes for the upper ends of the guide posts to pass through, the lower ends of the guide posts are fixed with the lower die, and the upper ends of the guide posts are positioned in the second guide holes of the upper die or pass through the second guide holes to extend to the upper side of the upper die.
Preferably, the number of the compression springs and the movable rods is three, the three movable rods are arranged in a triangular mode, the number of the guide posts is two, and the two guide posts are oppositely arranged left and right. The arrangement is used for making the up-and-down movement of the upper die more stable.
Preferably, after the motor is placed on the upper die, a gap exists between the lower end face of the lower end of the motor shaft and the lower end face of the lower die, the gap between the lower end face of the lower end of the motor shaft and the lower end face of the lower die is smaller than 5mm, and the expansion and contraction amount of the compression spring is larger than the gap.
Preferably, the upper end face of the upper die is concave to form a positioning groove for positioning the protrusion of the front end cover of the motor at the outer edge, and the positioning groove is positioned at the upper side of the first abdication groove and communicated with the first abdication groove. The motor is convenient to position by the arrangement, so that the perpendicularity of the motor shaft can be kept conveniently.
Preferably, the positioning groove and the first abdicating groove penetrate forward through the upper die, and the second abdicating groove penetrates forward through the lower die. The arrangement is convenient for placing and taking out the motor.
Preferably, a fifth yielding groove for yielding gears on the motor shaft is formed in the lower end face of the lower die in a concave manner, the fifth yielding groove is located on the upper side of the second yielding groove, and the fifth yielding groove penetrates through the lower die forwards. The motor is convenient to position by the arrangement, so that the perpendicularity of the motor shaft can be kept conveniently.
Preferably, the lower side of the pressing head is provided with a base, the upper end face of the base is concave to form a placing groove, and the lower die is placed in the placing groove so that the upper end face of the lower die is located above the upper end face of the base. Different motor positioning devices are replaced according to the requirement, so that the press of the device can be used for press mounting of different component assemblies.
The invention has the advantages of ensuring the position of the positioning sleeve after press fitting and avoiding damage to the motor shaft and the bearing.
Drawings
FIG. 1 is a schematic view of a structure of the present invention in use;
FIG. 2 is a schematic view of a ram according to the present invention;
fig. 3 is a schematic structural view of the motor positioning device of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
As shown in fig. 1 to 3, the press fitting device for the motor shaft positioning sleeve of the invention comprises a press, wherein a motor positioning device 2 is arranged on the lower side of a press head 1 of the press.
As shown in fig. 1 and 3, the motor positioning device 2 includes an upper die 3 and a lower die 4, the upper die 3 is formed with a first yielding groove 31 penetrating up and down to yield the motor shaft, the lower die 4 is formed with a second yielding groove 41 penetrating up and down to yield the motor shaft 21, the upper die 3 is supported above the lower die 4 by a plurality of compression springs 5, and the upper and lower ends of the compression springs 5 respectively abut against the upper die 3 and the lower die 4. The compression spring 5 is sleeved on the movable rod 6, the upper end of the movable rod 6 is fixed with the upper die 3, the lower end of the movable rod 6 is provided with a movable rod limiting block 61, the lower die 4 is provided with an upper first guide hole for the movable rod 6 to pass through and a lower first guide hole 43 for accommodating the movable rod limiting block 61, the length of the lower first guide hole 43 along the axial direction of the motor shaft 21 is greater than the length of the movable rod limiting block 61 along the axial direction of the motor shaft 21, and the inner diameter of the lower first guide hole 43 is greater than the inner diameter of the upper first guide hole. When the motor 23 is placed on the upper die 3, a gap exists between the lower end face of the lower end of the motor shaft 21 and the lower end face of the lower die 4, the gap between the lower end face of the lower end of the motor shaft 21 and the lower end face of the lower die 4 is smaller than 5mm, and the expansion and contraction amount of the compression spring 5 is larger than the gap.
As shown in fig. 1 and 2, the pressing head 1 is formed with a third yielding groove 11 and a fourth yielding groove 12, the third yielding groove 11 is located at the lower side of the fourth yielding groove 12 and penetrates the pressing head 1 downwards, the inner diameter of the third yielding groove 11 is larger than that of the fourth yielding groove 12 to form a step structure, the fourth yielding groove 12 is used for yielding the end part of the motor shaft 21, the third yielding groove 11 is used for yielding the positioning sleeve 22, and the length of the third yielding groove 11 along the axial direction of the motor shaft 21 is larger than that of the positioning sleeve 22 along the axial direction of the motor shaft 21. The pressure head 1 is composed of a pressure head body 10 and a positioning block 20, wherein an accommodating groove for accommodating the positioning block 20 and the fourth abdicating groove 12 are concavely formed on the lower end surface of the pressure head body 10, the positioning block 20 is fixed in the accommodating groove so that the third abdicating groove 11 is communicated with the fourth abdicating groove 12, and the lower end surface of the positioning block 20 is positioned below the lower end surface of the pressure head body 10.
As shown in fig. 1 and 3, a plurality of guide posts 7 are fixed on the lower die 4, a plurality of second guide holes 32 for the upper ends of the guide posts 7 to pass through are formed on the upper die 3, the lower ends of the guide posts 7 are fixed with the lower die 4, and the upper ends of the guide posts 7 are positioned in the second guide holes 32 of the upper die 3. The number of the compression springs 5 and the movable rods 6 is three, the three movable rods 6 are arranged in a triangular mode, the number of the guide posts 7 is two, and the two guide posts 7 are oppositely arranged left and right.
The upper end surface of the upper die 3 is concave to form a positioning groove 33 for the front end cover bulge 24 of the outer edge positioning motor 23, the positioning groove 33 is positioned on the upper side of the first abdicating groove 31 and communicated with the first abdicating groove 31, the positioning groove 33 and the first abdicating groove 31 penetrate the upper die 3 forwards, and the second abdicating groove 41 penetrates the lower die 4 forwards. The upper end surface of the lower die 4 is concavely provided with a fifth yielding groove 44 for yielding the gear 25 on the motor shaft 21, the fifth yielding groove 44 is positioned on the upper side of the second yielding groove 41, and the fifth yielding groove 44 penetrates through the lower die 4 forwards. The pressure head 1 downside is equipped with base 8, and base 8 up end indent is in order to be formed with the standing groove, and lower mould 4 is placed in the standing groove to make lower mould 4 up end be located above base 8 up end.
When the device is used, the motor is placed on the upper die, the motor shaft is positioned in the first yielding groove and the second yielding groove, the front end cover bulge of the front end cover of the motor is positioned in the positioning groove of the upper die, the gear on the motor shaft is positioned in the fifth yielding groove of the lower die, the front end cover of the motor is supported through the upper end face of the upper die, then the positioning sleeve is sleeved at the upper end of the motor shaft, the pressing head is pressed down, the upper end of the motor shaft is positioned in the fourth yielding groove of the pressing head, the positioning sleeve is positioned in the third yielding groove of the pressing head, the step face formed by the third yielding groove and the fourth yielding groove is contacted with the upper end face of the positioning sleeve, then the pressing head is continuously pressed down to enable the positioning sleeve to be propped against the step face, the positioning sleeve is pressed on the motor shaft through the descent of the pressing head, and when the lower end face of the pressing head is contacted with the rear end cover of the motor, the pressing head is pressed down.
The invention has the advantages of ensuring the position of the positioning sleeve after press fitting and avoiding damage to the motor shaft and the bearing.
Claims (4)
1. The motor shaft positioning sleeve press fitting device is characterized by comprising a press, wherein a motor positioning device is arranged at the lower side of a press head of the press, the motor positioning device comprises an upper die and a lower die, the upper die is provided with a first position-giving groove which penetrates up and down to position a motor shaft, the lower die is provided with a second position-giving groove which penetrates up and down to position the motor shaft, the upper die is supported above the lower die through a plurality of compression springs, the upper end and the lower end of each compression spring are respectively propped against the upper die and the lower die, the compression springs are sleeved on a movable rod, the upper end of the movable rod is fixed with the upper die, the lower end of the movable rod is provided with a movable rod limiting block, the lower die is provided with an upper first guide hole for the movable rod to pass through and a lower first guide hole for accommodating the movable rod limiting block, the upper length of the lower first guide hole is larger than the length of the movable rod limiting block along the axial direction of the motor shaft, the inner diameter of the lower first guide hole is larger than the inner diameter of the upper first guide hole, the press head is provided with a third position-giving groove and a fourth position-giving groove, the upper end of each compression spring is respectively propped against the upper die and the lower die, the movable rod is provided with a third position-giving groove and a fourth position-giving groove, the movable rod is formed with a third position-giving groove and a fourth position-giving groove, and a position-giving groove is formed along the length of the fourth position-giving groove, and the upper end of the motor shaft is positioned along the axial direction;
when the motor is placed on the upper die, a gap exists between the lower end face of the lower end of the motor shaft and the lower end face of the lower die, the gap between the lower end face of the lower end of the motor shaft and the lower end face of the lower die is smaller than 5mm, and the expansion and contraction amount of the compression spring is larger than the gap;
the upper end face of the upper die is concave to form a positioning groove for positioning the bulge of the front end cover of the motor at the outer edge, and the positioning groove is positioned at the upper side of the first abdication groove and communicated with the first abdication groove; the positioning groove and the first abdicating groove penetrate the upper die forwards, and the second abdicating groove penetrates the lower die forwards;
the lower side of the pressure head is provided with a base, the upper end face of the base is concave to form a placing groove, and the lower die is placed in the placing groove so that the upper end face of the lower die is positioned above the upper end face of the base;
the pressure head comprises a pressure head body and a positioning block, wherein an accommodating groove for accommodating the positioning block and the fourth abdicating groove are concavely formed in the lower end face of the pressure head body, the positioning block is fixed in the accommodating groove so that the third abdicating groove is communicated with the fourth abdicating groove, and the lower end face of the positioning block is positioned below the lower end face of the pressure head body.
2. The press-fitting device of a motor shaft positioning sleeve according to claim 1, wherein the lower die is fixed with a plurality of guide posts, the upper die is formed with a plurality of second guide holes for the upper ends of the guide posts to pass through, the lower ends of the guide posts are fixed with the lower die, and the upper ends of the guide posts are positioned in the second guide holes of the upper die or pass through the second guide holes to extend to the upper side of the upper die.
3. The motor shaft positioning sleeve press-fitting device according to claim 2, wherein the number of the compression springs and the movable rods is three, the three movable rods are arranged in a triangular shape, the number of the guide posts is two, and the two guide posts are arranged oppositely left and right.
4. The press-fitting device of a motor shaft positioning sleeve according to claim 1, wherein a fifth yielding groove for yielding a gear on a motor shaft is formed in the lower end face of the lower die in a concave manner, the fifth yielding groove is located on the upper side of the second yielding groove, and the fifth yielding groove penetrates through the lower die forwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775616.4A CN108687506B (en) | 2018-07-16 | 2018-07-16 | Motor shaft positioning sleeve press-fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775616.4A CN108687506B (en) | 2018-07-16 | 2018-07-16 | Motor shaft positioning sleeve press-fitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108687506A CN108687506A (en) | 2018-10-23 |
| CN108687506B true CN108687506B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810775616.4A Active CN108687506B (en) | 2018-07-16 | 2018-07-16 | Motor shaft positioning sleeve press-fitting device |
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| CN (1) | CN108687506B (en) |
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| CN109249203A (en) * | 2018-11-01 | 2019-01-22 | 横店集团英洛华电气有限公司 | Disposable double-bearing press fitting device |
| CN110011494B (en) * | 2019-05-10 | 2024-04-05 | 浙江联宜电机有限公司 | Rotor core rotating and stacking device |
| CN110181250B (en) * | 2019-06-21 | 2024-04-05 | 浙江联宜电机有限公司 | Multi-section iron mandrel press-fitting device |
| CN110253257B (en) * | 2019-07-08 | 2024-03-15 | 浙江联宜电机有限公司 | Starting gear press-fitting device on motor shaft |
| CN113579694B (en) * | 2021-07-22 | 2022-12-30 | 浙江联宜电机有限公司 | Motor output shaft and gear press-fitting device |
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Effective date of registration: 20230710 Address after: 322100 Hengdian Electronic Industrial Park, Dongyang City, Jinhua City, Zhejiang Province Applicant after: ZHEJIANG LINIX MOTOR Co.,Ltd. Address before: 322118 No. 196 Industrial Avenue, Hengdian Electronic Industrial Park, Jinhua City, Zhejiang Province Applicant before: HENGDIAN GROUP INNUOVO ELECTRIC Co.,Ltd. |
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