CN111673106B - Positioning tool for motor cutting - Google Patents

Positioning tool for motor cutting Download PDF

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Publication number
CN111673106B
CN111673106B CN202010681724.2A CN202010681724A CN111673106B CN 111673106 B CN111673106 B CN 111673106B CN 202010681724 A CN202010681724 A CN 202010681724A CN 111673106 B CN111673106 B CN 111673106B
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CN
China
Prior art keywords
expansion
sleeve
core
expansion sleeve
pull rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010681724.2A
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Chinese (zh)
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CN111673106A (en
Inventor
张鹏
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.)
Chongqing Xindengqi Mechanical And Electronic Technology Co ltd
Original Assignee
Chongqing Xindengqi Mechanical And Electronic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Chongqing Xindengqi Mechanical And Electronic Technology Co ltd filed Critical Chongqing Xindengqi Mechanical And Electronic Technology Co ltd
Priority to CN202010681724.2A priority Critical patent/CN111673106B/en
Publication of CN111673106A publication Critical patent/CN111673106A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40—Expansion mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • 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
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

The invention relates to the technical field of motor processing, in particular to a positioning tool for motor cutting, which comprises a hollow expansion core, wherein an expansion sleeve is sleeved on the expansion core in a sliding way, the expansion sleeve is in taper fit with the expansion core, a pull rod is arranged in a cavity of the expansion core, one end of the pull rod is connected with the expansion sleeve, and the other end of the pull rod is connected with a driving mechanism for driving the pull rod to move; a guide component used for guiding the expansion sleeve during movement is connected between the expansion sleeve and the expansion core in a sliding way. The invention can solve the problems of poor guiding effect, easy radial deflection of the expansion sleeve and unsatisfactory positioning effect of the motor stator of the existing expansion positioning structure.

Description

Positioning tool for motor cutting
Technical Field
The invention relates to the technical field of motor machining, in particular to a positioning tool for motor cutting.
Background
An electric machine, commonly called a "motor", refers to an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque as power source for electric appliances or various machines. At present, most commonly, heat energy, water energy and the like are utilized to push a generator rotor to generate electricity.
Before the rotor is additionally arranged, the motor stator needs to be cut so as to meet the requirements of size, smoothness and the like, and the motor needs to be positioned during cutting. At present, a motor stator is positioned in a tensioning mode, a tensioning core is connected to a main shaft of a lathe, a tensioning sleeve is sleeved on the tensioning core in a sliding mode, the motor stator is sleeved on the tensioning sleeve, the tensioning sleeve is driven to move along the tensioning core to change the radius of the tensioning sleeve, and accordingly the tensioning sleeve is tensioned in a shaft hole of the motor stator, and accordingly the motor stator is fixed.
In the tensioning structure, the tensioning sleeve is guided by the pull rod, so that the guiding effect is poor. Along with the extension of the service time, the pull rod is easy to cause radial deflection of the expansion sleeve in the moving process due to the deflection of the pull rod or the deformation of the expansion sleeve, so that the circumferential expansion degree of the expansion sleeve is different, the expansion sleeve cannot be stably attached to the shaft hole of the stator, and the positioning effect of the motor stator is not ideal.
Disclosure of Invention
The invention aims to provide a positioning tool for motor cutting, which solves the problems that the existing tensioning positioning structure is poor in guiding effect, the tensioning sleeve is easy to deviate radially, and the positioning effect of a motor stator is not ideal.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The positioning tool for cutting the motor comprises a hollow expansion core, wherein an expansion sleeve is sleeved on the expansion core in a sliding manner, the expansion sleeve is in taper fit with the expansion core, a pull rod is arranged in a cavity of the expansion core, one end of the pull rod is connected with the expansion sleeve, and the other end of the pull rod is connected with a driving mechanism for driving the pull rod to move; a guide component used for guiding the expansion sleeve during movement is connected between the expansion sleeve and the expansion core in a sliding way.
The principle and beneficial effect of this scheme are:
The pull rod is used for connecting the driving mechanism and the expansion sleeve, the driving mechanism is used for driving the pull rod to move, and the expansion sleeve is pulled by the pull rod so that the expansion sleeve moves along the expansion core. The expansion core is in taper fit with the expansion sleeve, and the expansion sleeve can be expanded when moving from the small end to the large end of the expansion core. During practical use, the motor stator is sleeved on the expansion sleeve, and the motor stator can be positioned by driving the expansion sleeve to expand and tightly expand in the motor stator.
The guide assembly is used for guiding the movement of the expansion sleeve, the deviation of the expansion sleeve in the movement process is avoided, the movement stability of the expansion sleeve is improved, the circumferential expansion degree uniformity of the expansion sleeve is further improved, the expansion sleeve can be tightly attached to the inner wall of the shaft hole of the motor stator in the circumferential direction, and the positioning stability of the motor stator can be improved. Due to the fact that the guide assembly is added, the guide effect of the expansion sleeve is improved, the deflection of the expansion sleeve and the deflection of the pull rod can be improved, the positioning effect of the motor stator can be improved, and the service life of the device can be prolonged.
Further, the clamping hole is formed in one end, far away from the expansion core, of the expansion sleeve, the hollow clamping sleeve is arranged on the inner side of the expansion sleeve and is in sliding connection with the expansion core, the clamping sleeve is provided with the clamping plate on the outer side of the expansion sleeve, the clamping sleeve extends out of the clamping hole and is fixedly connected with the clamping plate, the pull rod is fixed in the clamping sleeve, and the pull rod is connected with the expansion sleeve through the clamping sleeve and the clamping plate.
The beneficial effects are that: the clamping plate and the clamping sleeve are clamped outside the inner side of the expansion sleeve, and the pull rod is fixed in the clamping sleeve, so that the connection between the pull rod and the expansion sleeve is realized, and the structure is simple; the pull rod and the expansion sleeve with the structure can be disassembled so as to replace and maintain parts; the clamping sleeve is arranged, so that the abrasion of the pull rod and the expansion core can be reduced, only the clamping sleeve can be replaced after the clamping sleeve is abraded, the pull rod and the expansion core are not required to be replaced, and the equipment cost is saved. In addition, the expanding core and the pull rod with different sizes and models can be connected through sleeving the clamping sleeves with different diameters, so that the universality of the positioning tool is improved.
Further, the guide assembly comprises a guide rod, one end of the guide rod is fixedly connected with the clamping sleeve, and the other end of the guide rod is axially and slidably connected in the expansion core.
The beneficial effects are that: the guide rod is axially and slidably connected between the expansion core and the expansion sleeve, so that the stability of movement of the expansion sleeve can be improved, and the expansion sleeve is prevented from being deviated; the guide rod is used as a guide component, so that the structure is simple.
Further, the number of the guide rods is at least two, and the guide rods are symmetrically arranged by taking the axis of the pull rod as a symmetry center.
The beneficial effects are that: the guide rods are symmetrically arranged, so that the guide effect of the expansion sleeve can be further improved, and the deviation of the expansion sleeve is improved.
Further, a gasket is arranged at one end of the guide rod, which is connected with the clamping sleeve.
The beneficial effects are that: so set up, when the cover that rises removes to and rise the core and offset, the gasket can be filled up between cover and rising the core that rises, reduces the hard contact that rises between cover and the core that rises, can improve the wearing and tearing condition that rises cover and rising the core, improves its life.
Further, the gasket is a gasket with elasticity.
The beneficial effects are that: the elastic gasket is adopted, so that the effect of improving the abrasion condition of the expansion sleeve and the expansion core is better.
Further, a plurality of open slots are axially formed in the expansion sleeve, one end of each open slot is opened, the other end of each open slot is sealed, and two adjacent open slots are reversely arranged; the opening groove is sealed with an elastic piece, both ends of the inner wall of the expansion sleeve are respectively provided with a sealing ring, the sealing rings are propped against the expansion core, an expansion air cavity is enclosed between the sealing rings, the expansion sleeve between the sealing rings and the expansion core, and an inflation mechanism for inflating the expansion air cavity is arranged in the expansion core.
The beneficial effects are that: the open slot is used for providing the space that expands for the cover that rises, utilizes the sealing ring to form the tight air cavity that rises between cover and the core that rises, and the cover that rises is outwards promoted to the gas through the inflation mechanism in the tight air cavity that rises, and supplementary cover that rises is tight, can improve the cover that rises and rise the effect of tightly in the stator, and then improves the fixed effect of motor stator.
Further, the inflation mechanism comprises an air passage arranged in the expansion core, one end of the air passage is sealed, the air passage is communicated with the expansion air cavity, a piston is connected in the air passage in a sliding manner, the piston is connected with a driving piece, and the free end of the driving piece is connected with the expansion sleeve.
The beneficial effects are that: when the expansion sleeve moves to realize the expansion, the piston can be driven by the driving piece to slide in the air passage, so that the air in the air passage is extruded into the expansion air cavity; the expansion sleeve is used as power to drive the piston to move, no additional power source is needed, and the expansion sleeve has a simple structure and saves resources.
Further, the driving piece is the guide rod.
The beneficial effects are that: the guide rod is directly used as a driving piece for driving the piston to move, and the driving piece is not required to be additionally arranged, so that the structure of the device can be further simplified, and the equipment processing and material cost is saved.
Further, the driving mechanism is a hydraulic cylinder.
The beneficial effects are that: the hydraulic cylinder is adopted as a driving mechanism, so that the power is sufficient, the effect is good, and the control is convenient.
Drawings
FIG. 1 is a schematic view of a structure of a lathe according to an embodiment of the present invention;
FIG. 2 is a longitudinal cross-sectional view of a first embodiment of the present invention;
FIG. 3 is a longitudinal cross-sectional view of a second embodiment of the present invention;
FIG. 4 is a longitudinal cross-sectional view of a third embodiment of the present invention;
FIG. 5 is a longitudinal cross-sectional view of a fourth embodiment of the present invention;
fig. 6 is an enlarged schematic view at a in fig. 5.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: clamping plate 1, expansion sleeve 2, clamping sleeve 3, open slot 4, expansion core 5, pull rod 6, gasket 7, guide rod 8, piston 9, air flue 10, main shaft 11, lathe 12, sealing ring 13, and expansion air cavity 14.
As shown in fig. 1, the positioning tool for cutting the motor comprises a hollow expansion core 5, wherein the whole expansion core 5 is T-shaped, and the left end of the expansion core 5 is cone-shaped. The left end sliding sleeve of the expansion core 5 is provided with an expansion sleeve 2, and the expansion sleeve 2 is in taper fit with the expansion core 5. The left end of the expansion sleeve 2 is provided with a clamping hole, and the center of the clamping hole coincides with the axis of the expansion sleeve 2. The hollow cutting ferrule 3 is installed to cover 2 inboard that rises, and cutting ferrule 3 and core 5 sliding connection that rises, cover 2 outside that rises installs cardboard 1, and cutting ferrule 3 left end stretches out through bolted connection with cardboard 1 from the draw-in hole. A pull rod 6 is penetrated in the cavity of the expansion core 5, and the axis of the pull rod 6 coincides with the axis of the expansion core 5. The left end of the pull rod 6 is fixed in the clamping sleeve 3, and the right end of the pull rod 6 is connected with a driving mechanism for driving the pull rod 6 to move.
As can be seen from fig. 2, a plurality of open slots 4 are axially formed in the expansion sleeve 2, one end of each open slot 4 is open, the other end is sealed, and two adjacent open slots 4 are reversely arranged. The clamping plate 1 and the clamping sleeve 3 are used for clamping the expansion sleeve 2, the expansion sleeve 2 is connected with the pull rod 6, and the pull rod 6 is driven by the hydraulic cylinder to move transversely, so that the expansion sleeve 2 can be pulled to move transversely.
In actual use, the expanding core 5 is fixed on the lathe 12, so that the right end of the expanding core 5 is connected with the main shaft 11 of the lathe 12, and the pull rod 6 passes through the main shaft 11 of the lathe 12 and then is connected with the cutting sleeve 3. During processing, the motor stator is sleeved on the expansion sleeve 2, the hydraulic cylinder is started to pull the pull rod 6 to move leftwards, and the pull rod 6 pulls the expansion sleeve 2 to move rightwards through the clamping sleeve 3 and the clamping plate 1. The expansion sleeve 2 moves from the small diameter end to the large diameter end of the expansion core 5 along the outer edge of the expansion core 5, and the expansion sleeve 2 expands from the opening groove 4 to be tightly attached to the inner wall of the shaft hole of the motor stator, so that the expansion sleeve 2 is tightly expanded in the motor stator, and the motor stator is fixed. After the fixing, the main shaft 11 of the lathe 12 can be started to drive the motor stator to rotate so as to cut the motor stator.
Example two
As shown in fig. 3, this embodiment is different from the first embodiment in that a guide assembly for guiding the movement of the expansion sleeve 2 is slidably connected between the expansion sleeve 2 and the expansion core 5. The guide component comprises a guide rod 8, the left end of the guide rod 8 is welded with the clamping sleeve 3, and the right end of the guide rod 8 is axially and slidably connected in the expansion core 5. In this embodiment, there are at least two guide rods 8, and the guide rods 8 are symmetrically arranged with the axis of the pull rod 6 as the symmetry center.
The guide rod 8 is connected between the expansion sleeve 2 and the expansion core 5, so that the movement of the expansion sleeve 2 can be guided, the movement stability and accuracy of the expansion sleeve 2 are further improved, the deviation of the expansion sleeve 2 in the movement process is avoided, the circumferential expansion degree of the expansion sleeve 2 is ensured to be consistent, the expansion sleeve 2 can be better expanded in the motor stator, the fixing stability of the motor stator is improved, and the machining accuracy of the motor stator is further improved.
Example III
As shown in fig. 4, the difference between the present embodiment and the second embodiment is that the left end of the guide rod 8 is welded with a gasket 7, the gasket 7 is made of elastic gasket 7 such as silica gel, rubber, etc., and the gasket 7 is glued and fixed with the ferrule 3. The gasket 7 is arranged on the guide rod 8, so that hard contact between the expansion sleeve 2 and the expansion core 5 can be avoided, abrasion of the expansion sleeve 2 and the expansion core 5 is avoided, and the service life of the expansion sleeve is prolonged.
Implement four
As shown in fig. 5 and 6, the difference between the present embodiment and the third embodiment is that two ends of the inner wall of the expansion sleeve 2 are glued with sealing rings 13, two sealing rings 13 are all abutted against the outer wall of the expansion core 5, and the opening slot 4 of the expansion sleeve 2 is sealed with an elastic member, in this embodiment, the elastic member is made of elastic materials such as plastics and rubber. The sealing rings 13, the expansion sleeve 2 between the two sealing rings 13 and the expansion core 5 enclose an expansion air cavity 14, and an inflation mechanism for inflating the expansion air cavity 14 is arranged in the expansion core 5.
The inflation mechanism comprises an air passage 10 arranged in the expansion core 5, the right end of the air passage 10 is sealed, and the right end of the air passage 10 is communicated with the air cavity. A piston 9 is connected in a sliding way in the air passage 10, and the piston 9 is connected with the guide rod 8.
When the expansion sleeve 2 moves leftwards, the guide rod 8 can move leftwards along with the expansion sleeve 2, and the piston 9 on the guide rod 8 moves leftwards in the air passage 10, so that the air passage 10 is extruded into the tensioning air cavity 14. The gas in the tensioning air cavity 14 can provide an outward pushing acting force for the tensioning sleeve 2, so that the sleeve help to rise is assisted in tensioning the sleeve 2, the tensioning sleeve 2 is better tensioned in the motor stator, and the fixation stability of the motor stator is further improved. In this embodiment, the elastic member is sealed at the opening groove 4 of the expansion sleeve 2, which is not only used for forming the expansion air cavity 14, but also does not affect the expansion of the expansion sleeve 2.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (4)

1. The positioning tool for cutting the motor comprises a hollow expansion core, wherein an expansion sleeve is sleeved on the expansion core in a sliding manner, the expansion sleeve is in taper fit with the expansion core, a pull rod is arranged in a cavity of the expansion core, one end of the pull rod is connected with the expansion sleeve, and the other end of the pull rod is connected with a driving mechanism for driving the pull rod to move; the method is characterized in that: a guide component used for guiding the expansion sleeve during movement is connected between the expansion sleeve and the expansion core in a sliding way; the clamping hole is formed in one end, far away from the expansion core, of the expansion sleeve, the hollow clamping sleeve is arranged on the inner side of the expansion sleeve and is in sliding connection with the expansion core, the clamping plate is arranged on the outer side of the expansion sleeve, the clamping sleeve extends out of the clamping hole and is fixedly connected with the clamping plate, the pull rod is fixed in the clamping sleeve, and the pull rod is connected with the expansion sleeve through the clamping sleeve and the clamping plate; the guide assembly comprises a guide rod, one end of the guide rod is fixedly connected with the clamping sleeve, and the other end of the guide rod is axially and slidably connected in the expansion core; one end of the guide rod, which is connected with the clamping sleeve, is provided with a gasket; a plurality of open slots are axially formed in the expansion sleeve, one end of each open slot is opened, the other end of each open slot is sealed, and two adjacent open slots are reversely arranged; the opening groove is sealed with an elastic piece, sealing rings are arranged at two ends of the inner wall of the expansion sleeve, the sealing rings are propped against the expansion core, an expansion air cavity is enclosed between the sealing rings, the expansion sleeve between the sealing rings and the expansion core, and an inflation mechanism for inflating the expansion air cavity is arranged in the expansion core; the inflation mechanism comprises an air passage arranged in the expansion core, one end of the air passage is sealed, the air passage is communicated with the expansion air cavity, a piston is connected in the air passage in a sliding manner, the piston is connected with a driving piece, and the free end of the driving piece is connected with the expansion sleeve; the driving piece is the guide rod.
2. The positioning tool for cutting a motor according to claim 1, wherein: the number of the guide rods is at least two, and the guide rods are symmetrically arranged by taking the axis of the pull rod as a symmetry center.
3. The positioning tool for cutting a motor according to claim 2, wherein: the gasket is an elastic gasket.
4. A positioning tool for cutting a motor according to claim 3, wherein: the driving mechanism is a hydraulic cylinder.
CN202010681724.2A 2020-07-15 2020-07-15 Positioning tool for motor cutting Active CN111673106B (en)

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Application Number Priority Date Filing Date Title
CN202010681724.2A CN111673106B (en) 2020-07-15 2020-07-15 Positioning tool for motor cutting

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Application Number Priority Date Filing Date Title
CN202010681724.2A CN111673106B (en) 2020-07-15 2020-07-15 Positioning tool for motor cutting

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CN111673106B true CN111673106B (en) 2024-05-03

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Publication number Priority date Publication date Assignee Title
CN112846269A (en) * 2021-01-21 2021-05-28 温州衡恒贸易有限公司 Prevent excessive hydraulic pressure that rises and be convenient for adjust cover frock that rises
CN117175871B (en) * 2023-11-02 2024-01-12 常州隆耐智能装备有限公司 Stator processing is with cooperateing fixed equipment

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CN212526101U (en) * 2020-07-15 2021-02-12 重庆新登奇机电技术有限公司 Positioning tool for motor cutting

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CN102554301A (en) * 2012-02-12 2012-07-11 唐维刚 Machine tool fixture for machining sleeve parts
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CN212526101U (en) * 2020-07-15 2021-02-12 重庆新登奇机电技术有限公司 Positioning tool for motor cutting

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