CN114571269B - Dispersed pressure-bearing type motor casing machining clamp - Google Patents
Dispersed pressure-bearing type motor casing machining clamp Download PDFInfo
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- CN114571269B CN114571269B CN202210265727.7A CN202210265727A CN114571269B CN 114571269 B CN114571269 B CN 114571269B CN 202210265727 A CN202210265727 A CN 202210265727A CN 114571269 B CN114571269 B CN 114571269B
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- counterweight
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- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
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Abstract
The invention discloses a dispersed pressure-bearing type motor casing machining clamp which comprises a clamp body and a counterweight system, wherein a cavity is formed at the lower end of the clamp body, four groups of stand columns are arranged at the upper end of the clamp body, the four groups of stand columns are of a hollow structure, a ring is arranged at the upper end of each of the four groups of stand columns, one end of the ring is opened, the clamp body, the stand columns and the ring are of an integrally formed structure, a flange is fixedly connected at the other end of the clamp body, the clamp body and the flange are concentric, a positioning ring bottom plate is fixedly connected at the upper end of the clamp body, a lower positioning ring is fixedly connected at the upper end of the positioning ring bottom plate, the lower positioning ring and the clamp body are concentric, a guide rod connecting plate is arranged in the cavity of the clamp body, a pull pipe is fixed at the lower end of the guide rod connecting plate, the pull pipe is fixedly connected with an oil cylinder of a machine tool, and four groups of guide rods are fixed at the upper end of the guide rod connecting plate.
Description
Technical Field
The invention is applied to the background of auxiliary equipment for machining a motor shell, and is named as a dispersed pressure-bearing type motor shell machining clamp.
Background
The motor is an electromagnetic device for realizing the conversion or transmission of electric energy according to the law of electromagnetic induction, or converting one form of electric energy into another form of electric energy, the motor is composed of a stator and a rotor, a motor shell is the stator of the motor, the wall thickness of the motor shell is thinner, the motor shell belongs to a typical thin-wall part, the size tolerance and the form and position tolerance of an inner hole of the motor shell are the keys influencing the safe and stable operation of the whole motor.
However, the requirement of the pressing force of the pressing plate on the technical level of workers is extremely high, the pressing force is improperly controlled, the size and form and position tolerance of a processed inner hole are seriously out of tolerance, parts are unqualified and scrapped, and the production cycle of a product is influenced.
Therefore, it is necessary to provide a dispersed pressure-bearing motor casing processing clamp, which can achieve the effects of end face compression and automatic counterweight.
Disclosure of Invention
The invention aims to provide a dispersed pressure-bearing type motor casing machining clamp to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a disperse pressure-bearing motor casing adds clamping apparatus, contains the anchor clamps body and counter weight system, the specific lower extreme of anchor clamps is provided with the cavity, the specific upper end of anchor clamps is provided with four group's stands, four groups the stand is hollow structure, four groups the upper end of stand is provided with the ring, ring one end opening, the anchor clamps body, stand and ring be the integrated into one piece structure, the specific other end fastening connection of anchor clamps has the flange, the anchor clamps body is concentric with the flange.
In one embodiment, the upper end of the fixture body is fixedly connected with a positioning ring bottom plate, the upper end of the positioning ring bottom plate is fixedly connected with a lower positioning ring, the lower positioning ring is concentric with the fixture body, a guide rod connecting plate is arranged in a cavity of the fixture body, a pull tube is fixed at the lower end of the guide rod connecting plate and fixedly connected with an oil cylinder of a machine tool, four groups of guide rods are fixed at the upper end of the guide rod connecting plate, the four groups of guide rods all penetrate through a stand column, a pressing plate is fixedly connected at the other end of each of the four groups of guide rods, one end of the pressing plate is open, an upper positioning ring is fixed in the middle of the pressing plate, and the upper positioning ring is concentric with the lower positioning ring.
In one embodiment, an upper linear bearing and a lower linear bearing are respectively fastened at the upper end and the lower end inside the upright post, the guide rod is respectively in sliding fit with the upper linear bearing and the lower linear bearing, the pressure plate and the guide rod connecting plate are both movably connected with the guide rod through joint bearings, both ends of the guide rod are provided with threads, the pressure plate and the guide rod connecting plate are both fastened and connected with the guide rod through locking nuts, and the compression ends of the locking nuts are both provided with belleville springs.
In one embodiment, one side of the cavity of the fixture body is fixedly connected with a balancing weight, the balancing weight is arranged at a corresponding position of the opening of the circular ring, the balancing weight is provided with an inner cavity, one side of the balancing weight is fixedly connected with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are both connected with an external oil tank pipeline, an oil pump is arranged in the pipeline, and a plurality of groups of pressure sensors are arranged on the inner ring of the upper positioning ring.
In one embodiment, the counterweight system comprises a detection module, a calculation module and an adjustment module, wherein the detection module is electrically connected with a pressure sensor and used for collecting pressure data of a motor shell to the pressure sensor during trial processing, the calculation module is used for calculating according to the collected pressure data and determining a counterweight scheme, and the adjustment module is electrically connected with a liquid inlet pipe and a liquid outlet pipe and used for controlling input and output of oil according to the counterweight scheme.
In one embodiment, the operation of the counterweight system comprises the steps of:
s1, trial cutting: slowly rotating the main shaft, trial cutting the inner hole of the motor shell by using a cutter, and determining an initial strategy of the counterweight according to the stress condition of the pressure sensor;
s2, processing: determining a final strategy of the counterweight according to the actual stress condition of the pressure sensor during processing;
and S3, repeating the steps S1-S2, and adjusting the balance weight in real time during processing.
Compared with the prior art, the invention has the following beneficial effects: the motor shell can be conveniently clamped by the aid of the clamp body and the counterweight system, and meanwhile, the clamping points are arranged on the end face, so that deformation of a machined inner hole is avoided in the clamping process, the pressing angle can be adjusted to adapt to different blank conditions, and during machining, the counterweight can be intelligently adjusted according to different conditions of a blank, and machining precision is guaranteed.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
In the drawings:
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic rear view of the overall structure of the present invention;
FIG. 3 is a schematic view of the internal connection of the guide bar of the present invention;
FIG. 4 is a schematic view of the partial structure at the position A of the present invention;
FIG. 5 is a schematic view of a counterweight of the present invention;
in the figure: 1. a clamp body; 2. a flange; 3. pulling the tube; 4. a positioning ring bottom plate; 5. a lower positioning ring; 6. a guide bar; 7. pressing a plate; 8. an upper positioning ring; 9. a guide rod connecting plate; 10. a counterweight block; 11. a knuckle bearing; 12. an upper linear bearing; 13. a lower linear bearing; 14. a belleville spring; 15. locking the nut; 16. a column; 17. a liquid inlet pipe; 18. a liquid outlet pipe; 19. a circular ring.
Detailed Description
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
Referring to fig. 1-5, the present invention provides a technical solution: a dispersed pressure-bearing type motor casing machining clamp comprises a clamp body 1 and a counterweight system, wherein a cavity is formed at the lower end of the clamp body 1, four groups of upright posts 16 are arranged at the upper end of the clamp body 1, the four groups of upright posts 16 are of a hollow structure, a circular ring 19 is arranged at the upper ends of the four groups of upright posts 16, one end of the circular ring 19 is open, the clamp body 1, the upright posts 16 and the circular ring 19 are of an integrally formed structure, a flange 2 is fixedly connected to the other end of the clamp body 1, and the clamp body 1 and the flange 2 are concentric;
the main body part of the motor casing machining clamp is integrally formed, so that the rigidity of the clamp is increased, the stability of the motor casing during machining is increased, the motor casing is fixed on a main shaft of a lathe through the flange 2 when the motor casing machining clamp is used, convenience and rapidness are realized, meanwhile, one end of the ring 19 is opened, the junction box part of the motor casing is avoided, and the directionality of clamping is also clear for an operator;
the upper end of the clamp body 1 is fixedly connected with a positioning ring bottom plate 4, the upper end of the positioning ring bottom plate 4 is fixedly connected with a lower positioning ring 5, the lower positioning ring 5 is concentric with the clamp body 1, a guide rod connecting plate 9 is arranged in a cavity of the clamp body 1, a pull tube 3 is fixed at the lower end of the guide rod connecting plate 9, the pull tube 3 is fixedly connected with an oil cylinder of a machine tool, four groups of guide rods 6 are fixed at the upper end of the guide rod connecting plate 9, the four groups of guide rods 6 all penetrate through a stand column 16, a pressing plate 7 is fixedly connected to the other ends of the four groups of guide rods 6, one end of the pressing plate 7 is opened, an upper positioning ring 8 is fixed in the middle of the pressing plate 7, and the upper positioning ring 8 is concentric with the lower positioning ring 5;
when the device is used, a motor shell is placed between an upper locating ring 8 and a lower locating ring 5, the diameter direction of the motor shell is limited by the upper locating ring 8 and the lower locating ring 5, meanwhile, the tail end of a pull pipe 3 is connected with an oil cylinder of a machine tool, and a pressing plate 7 is driven by the pull pipe 3 to move up and down through a guide rod connecting plate 9 and a guide rod 6 to clamp and release a workpiece;
an upper linear bearing 12 and a lower linear bearing 13 are respectively fastened at the upper end and the lower end inside the upright column 16, the guide rod 6 is respectively in sliding fit with the upper linear bearing 12 and the lower linear bearing 13, the pressure plate 7 and the guide rod connecting plate 9 are both movably connected with the guide rod 6 through a joint bearing 11, both ends of the guide rod 6 are provided with threads, the pressure plate 7 and the guide rod connecting plate 9 are both fastened with the guide rod 6 through a locking nut 15, and the compression end of the locking nut 15 is provided with a belleville spring 14;
a joint bearing 11 and a belleville spring 14 are installed between the guide rod 6 and the guide rod connecting plate 9, the upper part of the guide rod 6 is also connected with the pressing plate 7 through the joint bearing 11 and the belleville spring 14, the guide rod 6 and the clamp body 1 are guided through an upper linear bearing 12 and a lower linear bearing 13, so that the guide rod 6 can only do vertical linear motion, the guide rod 6 is connected with the pressing plate 7 and the guide rod connecting plate 9 through the joint bearing 11 and the belleville spring 14, and the pressing plate 7 can float within a certain angle range to adapt to different blank states of the motor shell;
one side of the cavity of the fixture body 1 is fixedly connected with a balancing weight 10, the balancing weight 10 is arranged at a corresponding position of an opening of a circular ring 19, the balancing weight 10 is provided with an inner cavity, one side of the balancing weight 10 is fixedly connected with a liquid inlet pipe 17 and a liquid outlet pipe 18, the liquid inlet pipe 17 and the liquid outlet pipe 18 are both connected with an external oil tank pipeline, an oil pump is arranged in each pipeline, and the inner ring of an upper positioning ring 8 is provided with a plurality of groups of pressure sensors;
because the motor shell has the junction box, the gravity center of the motor shell has deviation, the part with the junction box is placed at the opening of the clamp, because of eccentricity, the pressure generated on the inner wall of the upper locating ring 8 in the processing process is different, a pressure sensor is used for collecting data, and then the counterweight block 10 is used for balancing weight, because of the individual difference of the motor shell, the counterweight is different every time, in order to ensure the processing size and the processing stability, the counterweight needs to be adjusted according to the actual condition, therefore, a method for adding hydraulic oil is adopted to increase or reduce the counterweight weight, the pump body is used for pumping the hydraulic oil into the counterweight block 10 from the liquid inlet pipe 17 or pumping the hydraulic oil into the counterweight block 10 from the liquid outlet pipe 18, so that the counterweight is adjusted according to the actual condition, the adjustment is not needed by replacing the counterweight block 10, and the production efficiency is improved;
the counterweight system comprises a detection module, a calculation module and an adjustment module, wherein the detection module is electrically connected with the pressure sensor and is used for collecting pressure data of the pressure sensor from a motor shell during trial processing, the calculation module is used for calculating according to the collected pressure data and determining a counterweight scheme, and the adjustment module is electrically connected with the liquid inlet pipe 17 and the liquid outlet pipe 18 and is used for controlling input and output of oil liquid according to the counterweight scheme;
the operation of the counterweight system comprises the following steps:
s1, trial cutting: slowly rotating the main shaft, trial cutting the inner hole of the motor shell by using a cutter, and determining an initial strategy of the counterweight according to the stress condition of the pressure sensor;
s2, processing: determining a final strategy of the counterweight according to the actual stress condition of the pressure sensor during processing;
s3, repeating the steps S1-S2, and adjusting the balance weight in real time during processing;
in the S1, the timing of the counterweight adjustment in the initial state is as follows:
because a process is needed for pumping hydraulic oil, if the hydraulic oil is pumped once in the processing, the pumping amount is too large, the processing is unstable, and the dynamic balance can be achieved after a long time, so that a certain amount of hydraulic oil needs to be pumped in trial cutting;
setting the maximum stress collected by the pressure sensor to be F max Minimum force is F min The force ratio Δ F is used to represent the amplitude of the motor casing, and the value is determined by the following formula:
when the delta F =1, the motor shell is not eccentric during processing, and does not need to be adjusted;
when the delta F is larger than 1, the eccentricity is caused during the processing of the motor shell, and the adjustment is needed;
determining the time for adjusting the balance weight according to different stress conditions of the pressure sensor;
the initial strategy of the counterweight in S2 is as follows:
when the motor shell is eccentric during machining, the counterweight needs to be adjusted, and the initial strategy of the counterweight is determined according to the position of the maximum stress;
go up and be provided with 2 pressure sensors in position circle 8, one department sets up in the corresponding position of 19 breachs of ring, marks as A department, and another position and A department become 90 contained angles, marks as B department, then:
s21, when F max When the position is at the position A, the counterweight of the counterweight block 10 is excessive, and the counterweight needs to be reduced;
s22, when F max When the position is B, the counter weight 10 is insufficient in counter weight, and the counter weight needs to be increased;
the amplitude of each adjustment in S21 and S22 is as follows:
the mass of hydraulic oil injected or extracted each time is set to Q, and the value thereof is determined by the following formula:
wherein m is the mass of the maximum hydraulic oil which can be injected into the counterweight 10, and the detection module is used for detecting and adjusting after each operation until Δ F =1;
the final weight strategy in S3 is as follows:
in the processing stage, because the rotating speed of the motor shell is increased, hydraulic oil in the balancing weight 10 can move to the far end due to the increase of centrifugal force, so that the balancing weight is increased, and at the moment, the motor shell is eccentric during processing, and needs to be corrected in time by a small amplitude;
at the moment, the hydraulic oil is continuously pumped out and is detected in real time by the detection module until the delta F =1.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; may be directly connected, may be internal to the two elements or may be in an interactive relationship with the two elements. The above terms are understood in the present application by those of ordinary skill in the art as appropriate.
The above detailed description is provided for a cleaning device provided in the embodiments of the present application, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (7)
1. The utility model provides a dispersion pressure-bearing formula motor casing adds clamping apparatus, contains the anchor clamps body (1) and counter weight system, its characterized in that: the clamp comprises a clamp body (1), a cavity is arranged at the lower end of the clamp body (1), four groups of upright posts (16) are arranged at the upper end of the clamp body (1), the four groups of upright posts (16) are of a hollow structure, a circular ring (19) is arranged at the upper end of each group of upright posts (16), one end of the circular ring (19) is open, the clamp body (1), the upright posts (16) and the circular ring (19) are of an integrally formed structure, a flange (2) is fixedly connected to the other end of the clamp body (1), and the clamp body (1) and the flange (2) are concentric;
the upper end of the clamp body (1) is fixedly connected with a positioning ring bottom plate (4), the upper end of the positioning ring bottom plate (4) is fixedly connected with a lower positioning ring (5), the lower positioning ring (5) is concentric with the clamp body (1), a guide rod connecting plate (9) is arranged in a cavity of the clamp body (1), a pull tube (3) is fixed at the lower end of the guide rod connecting plate (9), the pull tube (3) is fixedly connected with an oil cylinder of a machine tool, four groups of guide rods (6) are fixed at the upper end of the guide rod connecting plate (9), the four groups of guide rods (6) all penetrate through an upright post (16), the other ends of the four groups of guide rods (6) are fixedly connected with a pressing plate (7), one end of the pressing plate (7) is open, an upper positioning ring (8) is fixed in the middle of the pressing plate (7), and the upper positioning ring (8) is concentric with the lower positioning ring (5);
an upper linear bearing (12) and a lower linear bearing (13) are respectively fastened at the upper end and the lower end inside the upright post (16), the guide rod (6) is respectively in sliding fit with the upper linear bearing (12) and the lower linear bearing (13), the pressing plate (7) and the guide rod connecting plate (9) are movably connected with the guide rod (6) through a joint bearing (11), both ends of the guide rod (6) are provided with threads, the pressing plate (7) and the guide rod connecting plate (9) are both fixedly connected with the guide rod (6) through a locking nut (15), and the pressing end of the locking nut (15) is provided with a butterfly spring (14);
one side fastening connection of the anchor clamps body (1) cavity has balancing weight (10), balancing weight (10) set up in the open-ended relevant position of ring (19), balancing weight (10) are provided with the inner chamber, one side fastening connection of balancing weight (10) has feed liquor pipe (17) and drain pipe (18), feed liquor pipe (17) and drain pipe (18) all with outside oil tank pipe connection, and all are provided with the oil pump in the pipeline, the inner circle of going up position circle (8) is provided with multiunit pressure sensors.
2. The dispersed pressure-bearing motor casing machining clamp of claim 1, wherein: the counter weight system comprises a detection module, a calculation module and an adjustment module, wherein the detection module is electrically connected with the pressure sensor and used for collecting pressure data of the pressure sensor from a motor shell during trial processing, the calculation module is used for calculating according to the collected pressure data and determining a counter weight scheme, and the adjustment module is electrically connected with the liquid inlet pipe (17) and the liquid outlet pipe (18) and used for controlling input and output of oil according to the counter weight scheme.
3. The dispersed pressure-bearing motor casing machining clamp of claim 2, wherein: the operation of the counterweight system comprises the following steps:
s1, trial cutting: slowly rotating the main shaft, trial cutting the inner hole of the motor shell by using a cutter, and determining an initial strategy of the counterweight according to the stress condition of the pressure sensor;
s2, processing: determining a final strategy of the counterweight according to the actual stress condition of the pressure sensor during processing;
and S3, repeating the steps S1-S2, and adjusting the balance weight in real time during processing.
4. The dispersed pressure-bearing motor casing machining clamp of claim 3, wherein: the balance weight adjusting time in the initial state in the step S1 is as follows:
setting the maximum stress collected by the pressure sensor to be F max Minimum force is F min The force ratio Δ F is used to represent the amplitude of the motor casing, and the value is determined by the following formula:
when delta F =1, the motor shell is not eccentric during processing, and does not need to be adjusted;
when the delta F is larger than 1, the eccentricity is caused during the processing of the motor shell, and the adjustment is needed;
and determining the time for adjusting the balance weight according to different stress conditions of the pressure sensor.
5. The dispersed pressure-bearing motor casing machining clamp of claim 4, wherein: the initial strategy of the counterweight in the S2 is as follows:
go up and be provided with 2 pressure sensors in position circle (8), one department sets up in the relevant position of ring (19) breach, marks as A department, and another department position and A department become 90 contained angles, marks as B department, then:
s21, when F max When the position is at A, the counterweight of the counterweight block (10) is excessive, and the counterweight needs to be reduced;
s22, when F max When the position B is located, the counter weight block (10) is lack of counter weight, and the counter weight needs to be increased.
6. The dispersed pressure-bearing motor casing machining clamp of claim 5, wherein: the amplitude of each adjustment in S21 and S22 is as follows:
the mass of hydraulic oil injected or extracted each time is set to Q, the value of which is determined by the following equation:
wherein m is the mass of the maximum hydraulic oil which can be injected by the balancing weight (10), and the detection module is used for detecting and adjusting after each operation until delta F =1.
7. The dispersed pressure-bearing motor casing machining clamp of claim 6, characterized in that: the final weight strategy in S3 is as follows:
in the processing stage, because the rotating speed of the motor shell is increased, hydraulic oil in the balancing weight (10) can move to the far end due to the increase of centrifugal force, so that the balancing weight is increased, the motor shell is eccentric during processing, and needs to be corrected in time in a small amplitude manner;
at the moment, the hydraulic oil is continuously pumped out and is detected in real time by using a detection module until the delta F =1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265727.7A CN114571269B (en) | 2022-03-17 | 2022-03-17 | Dispersed pressure-bearing type motor casing machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265727.7A CN114571269B (en) | 2022-03-17 | 2022-03-17 | Dispersed pressure-bearing type motor casing machining clamp |
Publications (2)
| Publication Number | Publication Date |
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| CN114571269A CN114571269A (en) | 2022-06-03 |
| CN114571269B true CN114571269B (en) | 2023-01-31 |
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| CN202210265727.7A Active CN114571269B (en) | 2022-03-17 | 2022-03-17 | Dispersed pressure-bearing type motor casing machining clamp |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115861U (en) * | 1992-03-12 | 1992-09-16 | 瓦房店机床厂技术开发公司 | Clamping device for producing cover of electric machinary |
| JP2006167821A (en) * | 2004-12-13 | 2006-06-29 | Konica Minolta Opto Inc | Attachment fitting method and spindle device |
| CN204584760U (en) * | 2015-04-29 | 2015-08-26 | 利欧集团股份有限公司 | Motor case vehicle clamper |
| JP2020085070A (en) * | 2018-11-20 | 2020-06-04 | トヨタ自動車株式会社 | fixing jig |
| CN210451949U (en) * | 2019-08-14 | 2020-05-05 | 太仓黑龙智能工业科技有限公司 | Lathe special-shaped part quick replacement frock |
| CN213857170U (en) * | 2020-08-03 | 2021-08-03 | 临海市万泰工贸有限公司 | Special clamp for boring holes in motor shell and thin-wall part |
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