CN115319445A - Positioning and guiding device - Google Patents

Positioning and guiding device Download PDF

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Publication number
CN115319445A
CN115319445A CN202110505503.4A CN202110505503A CN115319445A CN 115319445 A CN115319445 A CN 115319445A CN 202110505503 A CN202110505503 A CN 202110505503A CN 115319445 A CN115319445 A CN 115319445A
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CN
China
Prior art keywords
shaft
positioning
guiding
guide
hole
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Granted
Application number
CN202110505503.4A
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Chinese (zh)
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CN115319445B (en
Inventor
江彪
郁李巍
王全任
钟毅
尹建民
李佳奕
韦彬
陈伟
鲍爱建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
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SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
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Priority to CN202110505503.4A priority Critical patent/CN115319445B/en
Publication of CN115319445A publication Critical patent/CN115319445A/en
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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
    • B23P19/10—Aligning parts to be fitted together
    • 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
    • B23P19/04—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 assembling or disassembling parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

The invention provides a positioning guide device for positioning and guiding the assembly of a motor shaft assembly and a motor stator of a hybrid electric vehicle gearbox, wherein the positioning guide device is provided with a bottom plate, a lifting shaft and a guide shaft, the bottom plate is fixed on a base for bearing the positioning guide device through bolts, the lifting shaft is connected with the bottom plate, the guide shaft is fixedly connected with the lifting shaft and can adjust the axial height of the guide shaft through the lifting shaft, the guide shaft comprises a first section and a second section, the first section of the guide shaft is in clearance fit with an assembly hole formed on a gearbox shell during positioning and guiding, and the second section of the guide shaft penetrates through and protrudes out of an inner hole of the motor shaft assembly and is in clearance fit with the inner hole of the motor shaft assembly during positioning and guiding.

Description

Positioning and guiding device
Technical Field
The invention relates to a positioning and guiding device, in particular to a positioning and guiding device for assembling a motor shaft assembly and a motor stator of a gearbox of a hybrid electric vehicle.
Background
With the development of automobile technology, the functions of the gearbox of the hybrid electric vehicle are increasingly powerful, and the structure with more compact and effective composite functions is widely applied to the gearbox of the hybrid electric vehicle, so that the size of the gearbox is controlled while the function of the gearbox is increased. Therefore, the motor in the transmission case is generally assembled with the motor shaft assembly and the motor stator in a manner that the stator is fixed to the transmission case and the motor shaft assembly is assembled to the case. And because the motor rotor on the motor shaft assembly is a permanent magnet, a great magnetic interaction force exists between the motor rotor and the motor stator, so that the precise assembly of the motor shaft assembly and the motor stator is influenced.
In the prior art, the motor is generally assembled by using a three-section housing, in which a motor stator is first installed in a middle housing, then a motor shaft assembly is installed in a front housing, and finally, a box is closed. In the assembly method using the three-stage housing, the size of the housing is generally large.
Disclosure of Invention
The technical problem to be solved by one aspect of the invention is how to ensure high-precision assembly of a motor shaft assembly and a motor stator under the condition of adopting a two-section type shell. In the assembly form of two-section casing, the gearbox comprises two casings, connects two casings fixedly through the bolt, and the inner space of casing is used for installing other parts. The specific implementation mode is that other parts, such as a shaft, a bearing, a motor, a gear shifting mechanism, electric control hardware and the like are installed on one shell, and then the other shell is combined with the shell and connected through bolts. The three-section type shell is composed of three shells, and parts are often respectively installed on a middle shell, a front shell and a rear shell, and then are combined in a box and connected through bolts. And the form of adopting the syllogic casing can lead to the size chain longer usually, is difficult to satisfy the demand of motor high accuracy location.
In addition, other aspects of the present invention are also directed to solving or alleviating other technical problems in the prior art.
The invention provides a positioning and guiding device, and particularly provides, according to one aspect of the invention:
a positioning guide device is used for positioning guide of assembly of a motor shaft assembly and a motor stator of a gearbox of a hybrid electric vehicle, and comprises a bottom plate, a lifting shaft and a guide shaft, wherein the bottom plate is fixed on a base used for bearing the positioning guide device through bolts, the lifting shaft is connected with the bottom plate, the guide shaft is fixedly connected with the lifting shaft and can adjust the axial height of the guide shaft through the lifting shaft, the guide shaft comprises a first section and a second section, the first section of the guide shaft is in clearance fit with an assembly hole formed in a gearbox shell during positioning guide, and the second section of the guide shaft penetrates through and protrudes out of an inner hole of the motor shaft assembly and is in clearance fit with the inner hole of the motor shaft assembly during positioning guide.
Alternatively, according to an embodiment of the present invention, an external thread is formed on the elevation shaft, and an internal thread matching the external thread is formed on the base plate, and the axial height of the elevation shaft is changed by screwing the elevation shaft screwed with the base plate.
Alternatively, according to an embodiment of the present invention, a through hole is configured on the base plate, the elevation shaft passes through the through hole and moves up and down in the through hole, and a screw hole extending from the through hole to a side surface of the base plate perpendicular to an axial direction of the elevation shaft is configured on the base plate, in which a bolt is installed for restricting an axial movement of the elevation shaft in the through hole.
Alternatively, according to one embodiment of the invention, a first flange and a second flange are formed on the end of the lifting shaft connected to the guide shaft and on the end of the guide shaft connected to the lifting shaft, respectively, and the first flange and the second flange are connected to each other by means of bolts.
Alternatively, according to one embodiment of the invention, 6 threaded holes, which are arranged uniformly in the circumferential direction, are each formed on the first flange and the second flange.
Alternatively, according to an embodiment of the invention, the lifting shaft and the guide shaft are connected to each other by a sleeve.
Alternatively, according to an embodiment of the invention, the first section of the guide shaft is held in a clearance fit of 0.1-0.2 mm with a mounting hole configured on the gearbox housing, and the second section of the guide shaft is held in a clearance fit of 0.15-0.3 mm with the inner bore of the motor shaft assembly.
The beneficial effects of the invention include: the positioning guide device can effectively ensure the high-precision assembly of the motor shaft assembly and the motor stator, improves the assembly efficiency and the assembly quality, can be matched with shells with different axial lengths through the design of the lifting shaft, and has wide application range and good economical efficiency.
Drawings
The above and other features of the present invention will become apparent with reference to the accompanying drawings, in which,
figure 1 shows a schematic view of a positioning and guiding device according to an embodiment of the present invention,
fig. 2 is a schematic assembly view showing components in positioning and guiding using the positioning and guiding device according to an embodiment of the present invention.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structural modes and implementation modes without changing the essential spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The directional terms upper, lower, left, right, front, rear, front, back, top, bottom and the like that are or may be mentioned in this specification are defined relative to the configurations shown in the drawings, and are relative concepts that may be changed accordingly depending on the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," "third," and the like are used for descriptive and descriptive purposes only and not for purposes of indication or implication as to the relative importance of the respective components.
Referring to fig. 1, there is shown a schematic structural view of a positioning guide apparatus according to an embodiment of the present invention. The positioning and guiding device is used for assembling a motor shaft assembly and a motor stator of a gearbox of a hybrid electric vehicle, and is particularly used for assembling the motor shaft assembly and the motor stator under the condition that the gearbox adopts a two-section type shell assembling mode. The positioning guide device actually plays a role in pre-positioning the motor shaft assembly and the motor stator during assembly so as to improve assembly accuracy on the basis of overcoming magnetic force between the motor rotor and the motor stator, and the positioning guide device can be taken down from the gearbox after assembly is completed.
The positioning guide comprises a base plate 10, a lifting shaft 20 and a guide shaft 30, wherein the guide shaft comprises a first section 301 and a second section 302. The base plate 10 can be fixed to a base 60 for carrying a positioning guide by means of screws 50, a male thread being formed on the lifting shaft 20, and a female thread cooperating with the male thread being formed on the base plate 10. The lifting shaft 20 can be screwed into the base plate 10 at one end and the axial height of the lifting shaft 20 can be adjusted by screwing to match gearbox housings of different axial heights. A first flange 201 is formed at the other end of the lifting shaft 20, a second flange 303 is formed at the lower end of the guide shaft 30, 6 screw holes are uniformly formed in the first flange 201 and the second flange 303 in the circumferential direction, and the first flange 201 and the second flange 303 are connected to each other through the screw holes by 6 bolts 40, thereby ensuring the strength and accuracy of the connection.
In an embodiment that is not shown, no thread is formed on the lifting shaft 20, whereas a through-hole is formed on the base plate 10, in which through-hole the lifting shaft 20 can be moved up and down, and in which base plate 10 a threaded hole is formed that extends perpendicular to the axial direction of the lifting shaft 20 from the through-hole to one side of the base plate 10. In which a bolt is mounted, which can be screwed against the lifting shaft 20 in order to fix the axial position of the lifting shaft 20 when adjusting the lifting shaft 20 to a suitable position.
In an embodiment not shown, the lifting shaft 20 and the guide shaft 30 can also be connected to one another by means of a sleeve.
Referring to fig. 2, there is shown an assembly view of components in performing positioning guide using the positioning guide device according to an embodiment of the present invention. In fig. 2, the base plate 10 is first fixed to the base 60 by the bolts 50, then the lifting shaft 20 is connected to the guide shaft 30 by the bolts 40 and the lifting shaft 20 is mounted in the threaded hole of the base plate 10, and the guide shaft 30 is inserted into the inner hole of the motor shaft assembly 70 through a mounting hole configured on the transmission case 90 specifically for the positioning guide. The height of the guide shaft 30 is adjusted to a proper height by screwing the elevating shaft 20, that is, the guide shaft 30 is protruded from the inner hole of the motor shaft assembly 70 and is 10 mm higher than the upper top surface of the motor shaft assembly 70. The guide shaft 30 should be configured to maintain a 0.1-0.2 mm clearance fit of the first section 301 of the guide shaft 30 and the mounting hole and a 0.15-0.3 mm clearance fit of the second section 302 of the guide shaft 30 and the inner bore of the motor shaft assembly 70 at this height, thereby ensuring a high precision assembly of the motor shaft assembly 70 with the motor stator 80 and the transmission housing 90. After being assembled in place, the motor shaft assembly 70 is bolted and the bolted connection of the base plate 10 to the base 60 is released, and then the positioning guide is removed from the transmission case, thereby finally completing the assembly.
It should be understood that all of the above preferred embodiments are exemplary and not restrictive, and that various modifications and changes in the specific embodiments described above, which would occur to persons skilled in the art upon consideration of the above teachings, are intended to be within the scope of the invention.

Claims (7)

1. A positioning and guiding device is used for positioning and guiding the assembly of a motor shaft assembly and a motor stator of a hybrid electric vehicle gearbox and is characterized in that the positioning and guiding device is provided with a bottom plate, a lifting shaft and a guiding shaft, the bottom plate is fixed on a base used for bearing the positioning and guiding device through bolts, the lifting shaft is connected with the bottom plate, the guiding shaft is fixedly connected with the lifting shaft and can adjust the axial height of the guiding shaft through the lifting shaft, the guiding shaft comprises a first section and a second section, the first section of the guiding shaft is in clearance fit with an assembling hole formed in a gearbox shell during positioning and guiding, and the second section of the guiding shaft penetrates through and protrudes out of an inner hole of the motor shaft assembly and is in clearance fit with an inner hole of the motor shaft assembly during positioning and guiding.
2. The positioning guide as claimed in claim 1, wherein an external thread is formed on the elevation shaft, and an internal thread engaged with the external thread is formed on the base plate, and the axial height of the elevation shaft is changed by screwing the elevation shaft threadedly coupled with the base plate.
3. The positioning guide as claimed in claim 1, wherein a through hole is formed on the base plate, the elevation shaft passes through the through hole and moves up and down in the through hole, and a screw hole extending from the through hole to a side of the base plate perpendicular to an axial direction of the elevation shaft is formed on the base plate, and a bolt is installed in the screw hole for limiting an axial movement of the elevation shaft in the through hole.
4. The positioning guide according to any one of claims 1 to 3, wherein a first flange and a second flange are respectively configured at an end of the lifting shaft connected to the guide shaft and at an end of the guide shaft connected to the lifting shaft, and the first flange and the second flange are connected to each other by bolts.
5. The positioning guide according to claim 4, characterized in that 6 threaded holes arranged uniformly in the circumferential direction are respectively configured on the first flange and the second flange.
6. Positioning guide according to one of claims 1 to 3, characterized in that the lifting shaft and the guide shaft are connected to each other by means of a sleeve.
7. The positioning guide as claimed in claim 1, wherein the first section of the guide shaft is held in a 0.1-0.2 mm clearance fit with a mounting hole configured on the transmission housing, and the second section of the guide shaft is held in a 0.15-0.3 mm clearance fit with the inner bore of the motor shaft assembly.
CN202110505503.4A 2021-05-10 2021-05-10 Positioning guide device Active CN115319445B (en)

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Application Number Priority Date Filing Date Title
CN202110505503.4A CN115319445B (en) 2021-05-10 2021-05-10 Positioning guide device

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Application Number Priority Date Filing Date Title
CN202110505503.4A CN115319445B (en) 2021-05-10 2021-05-10 Positioning guide device

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CN115319445A true CN115319445A (en) 2022-11-11
CN115319445B CN115319445B (en) 2024-04-09

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Citations (17)

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Publication number Priority date Publication date Assignee Title
DE202005002185U1 (en) * 2005-02-11 2005-05-25 Klann-Spezial-Werkzeugbau-Gmbh Device for the variable disassembly and assembly of axle components
CN102299587A (en) * 2011-08-31 2011-12-28 广东明阳风电产业集团有限公司 Positioning device for assembling generator
AU2012100740A4 (en) * 2012-05-23 2012-08-30 Hengdian Group Linix Motor Co,.Ltd A Motor Assembly Fixture
CN103023239A (en) * 2012-12-14 2013-04-03 中船重工电机科技股份有限公司 Entering shell tool and entering shell technology of motor magnetism rotator
CN203119713U (en) * 2013-01-11 2013-08-07 西安正麒电气有限公司 Assembly fixture of vehicle permanent magnet motor rotor
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CN206060486U (en) * 2016-08-19 2017-03-29 湖南航天机电设备与特种材料研究所 A kind of permanent magnet D.C. torque motor assembles protection device
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CN106655649A (en) * 2016-09-12 2017-05-10 马幼鸣 High-speed high-power density AC servo motor
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CN208904852U (en) * 2018-11-12 2019-05-24 四川德胜集团钒钛有限公司 Middle-size and small-size permanent magnet synchronous motor assembles device
CN210225213U (en) * 2019-09-05 2020-03-31 湖南湘电动力有限公司 Motor assembly tool
EP3796522A1 (en) * 2019-09-20 2021-03-24 ZF Friedrichshafen AG Mounting device for inserting a stator of an electric machine into a gearbox housing, hybrid drive module and method for mounting a stator
CN213003599U (en) * 2020-06-24 2021-04-20 吉泰车辆技术（苏州）有限公司 DHT gearbox motor dismounting device

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