CN114030073B - Pipe die warp positioning device and positioning method - Google Patents
Pipe die warp positioning device and positioning method Download PDFInfo
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- CN114030073B CN114030073B CN202111421138.5A CN202111421138A CN114030073B CN 114030073 B CN114030073 B CN 114030073B CN 202111421138 A CN202111421138 A CN 202111421138A CN 114030073 B CN114030073 B CN 114030073B
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- pipe die
- proximity switch
- magnetic proximity
- permanent magnet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/80—Moulds adapted to centrifugal or rotational moulding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a pipe die warp positioning device, which comprises: the device comprises a driver, a motor, a controller, a wheel shaft assembly, a pipe die, a permanent magnet and a magnetic proximity switch; detecting the distance between the permanent magnet and the magnetic proximity switch through the magnetic proximity switch; under the condition that the distance between the permanent magnet and the magnetic proximity switch is smaller than the preset distance, the magnetic proximity switch outputs a signal to the controller, and the controller switches the mode of the driver from a speed mode to a position control mode and clears the pulse value of the encoder; according to the embodiment of the invention, by utilizing the characteristic of the magnetic proximity switch, when the distance between the permanent magnet and the magnetic proximity switch reaches the shortest distance, the magnetic proximity switch and the permanent magnet are positioned on the same horizontal line, and the encoder is cleared at the moment, so that the sliding stroke of the pipe die can be recorded through the encoder, and the pipe die is driven to move to the passing position by controlling the motor, so that the accurate positioning is realized.
Description
Technical Field
The embodiment of the invention relates to the field of buildings, in particular to a pipe die positioning device and a positioning method.
Background
The pipe pile is an important pile foundation material and also an important cement product, and has been widely applied to foundation engineering of various buildings and constructions, such as high-rise buildings, public buildings, industrial and civil buildings, ports, wharfs, highways and the like.
The tubular pile machine is a special device for manufacturing tubular piles.
In the production process of the pipe pile machine, a special process exists, the weight of a pipe pile machine die can reach tens of tons when the pipe pile machine die is filled with materials, the position of the pipe die is upward when the pipe die is initially placed, but in the high-speed centrifugal stage of the pipe die, the relative position of the pipe die and a pipe wheel (a guide wheel for supporting the pipe die) can change when the pipe die is started and the relative position of the pipe die and the pipe wheel is finally stopped due to slip, and the stopping position cannot be calculated in a starting position mode, so that the position of the pipe die is upward after the pipe die stops running. The centrifugal pipe die is required to be moved to the heating furnace through grabbing of the travelling crane, the travelling crane must grab the upward warp position to safely remove the pipe die when grabbing the pipe die, and the warp position cannot be automatically upward, so that the pipe die is operated at a lower frequency through manual operation of a click-out driver, but the pipe die has large weight and large movement inertia, and the pipe die can slide when being stopped, and the pipe die can be fixed upward through multiple attempts; the method not only needs to be manually participated, but also has low operation efficiency; the defects are that the personnel needs to be dispatched and the personnel are on duty, the alignment is difficult, and the production efficiency is low.
Disclosure of Invention
Therefore, an object of the embodiments of the present invention is to provide a positioning device and a positioning method for pipe dies, which are used for solving the problems of low positioning efficiency and low precision of pipe dies.
The first aspect of the invention discloses a pipe die positioning device, which comprises:
a driver including a first terminal, a second terminal, and a third terminal;
the motor comprises a first end, a second end and a third end; the first end is provided with an output shaft, the second end is provided with an encoder, and the encoder is connected with the first wiring terminal through a signal wire; the third end is connected with the third wiring terminal through a power line;
the controller is electrically connected with the driver and the motor;
the wheel shaft assembly is connected with the output shaft through a belt;
the pipe die is movably arranged on the wheel shaft assembly;
the permanent magnet is arranged on the outer ring surface of the pipe die;
the magnetic proximity switch is fixedly arranged on the wheel shaft assembly and is electrically connected with the second wiring terminal;
the magnetic proximity switch is used for detecting the distance between the permanent magnet and the magnetic proximity switch; and under the condition that the distance between the permanent magnet and the magnetic proximity switch is smaller than a preset distance, the magnetic proximity switch outputs a signal to the controller, and the controller switches the mode of the driver from a speed mode to a position control mode and clears the pulse value of the encoder.
Further, the axle assembly includes:
the fixing seat is arranged on the working platform and is provided with a mounting hole;
the rotating shaft penetrates through the mounting hole and is rotationally connected with the fixing seat;
the driving wheel is fixed on the rotating shaft, the belt is wound on the driving wheel, and the motor drives the output shaft to rotate, so that the driving wheel and the rotating shaft are driven to rotate through the belt.
The axle assembly further includes: first wheel subassembly and second wheel subassembly, first wheel subassembly includes:
the first connecting rod is spliced with the axial direction of the rotating shaft into a whole;
the first rollers are provided with a plurality of first rollers, and each first roller is sequentially and fixedly connected to the first connecting rod in series.
Further, the second roller assembly includes:
a second link;
the number of the second rollers is the same as that of the first rollers, and each second roller is sequentially connected with the second connecting rod in series; the second roller and the first roller form a supporting piece of the pipe die.
Further, the outer side surface of the pipe die is fixedly surrounded with a plurality of flanges, each flange is tangent to the first roller and the second roller, and the first roller is driven by the rotating shaft to drive the pipe die to rotate.
Further, the magnetic proximity switch is fixedly arranged on the fixing seat.
The invention discloses a pipe die positioning method, which comprises the following steps:
the permanent magnet is arranged on one side of the pipe die, which is close to the wheel axle assembly, the magnetic proximity switch is fixedly arranged on the wheel axle assembly, and the center line of the magnetic proximity switch and the center line of the permanent magnet are arranged on the same plane;
starting a motor, wherein the motor drives the wheel shaft assembly through a belt so as to drive the pipe die to rotate;
after the high-speed centrifugation of the pipe die is finished, the driver controls the motor to decelerate, and in the decelerating process, when the running frequency of the pipe die is smaller than or equal to the preset frequency, the magnetic proximity switch is started;
and in the process of rotating the pipe die, detecting the distance between the permanent magnet and the magnetic proximity switch, and sending a signal to the controller by the magnetic proximity switch when the distance between the permanent magnet and the magnetic proximity switch is smaller than or equal to a preset threshold value.
Further, after the step of sending a signal to the controller by the magnetic proximity switch, the method includes:
after receiving a signal sent by the magnetic proximity switch, switching a speed mode of the driver into a position control mode;
after recording the pulse value of the current encoder, resetting the pulse value of the encoder;
determining a pulse deviation value through a preset deviation value;
and determining a first output frequency of the driver through the pulse deviation value.
Further, the step of determining the first output frequency of the driver by the pulse deviation value includes:
controlling the first output frequency output by the driver to be lower than a preset frequency through radiation limiting processing to obtain a second output frequency;
determining a preset position of the pipe die for stopping moving according to the pulse deviation value;
the driver controls the motor to drive the pipe die to rotate according to the second output frequency and the preset position of the pipe die for stopping moving;
and when the difference value between the actual position of the pipe die stopping movement and the preset position of the pipe die stopping movement is smaller than the preset deviation, locking the motor shaft.
According to the pipe die passing position positioning device provided by the embodiment of the invention, the distance between the permanent magnet and the magnetic proximity switch is detected through the magnetic proximity switch; when the distance between the permanent magnet and the magnetic proximity switch is smaller than a preset distance, the magnetic proximity switch outputs a signal to the controller, and the controller switches the mode of the driver from a speed mode to a position control mode and clears the pulse value of the encoder; according to the embodiment of the invention, by utilizing the characteristic of the magnetic proximity switch, when the distance between the permanent magnet and the magnetic proximity switch reaches the shortest distance, the magnetic proximity switch and the permanent magnet are positioned on the same horizontal line, and the encoder is cleared at the moment, so that the sliding stroke of the pipe die can be recorded through the encoder, and the pipe die is driven to move to the passing position by controlling the motor, so that the accurate positioning is realized.
Drawings
FIG. 1 is a schematic view of a pipe die positioning device according to a first embodiment of the present invention;
fig. 2 is a flow chart of steps S101 to S104 in the second embodiment of the present invention;
fig. 3 is a flow chart of steps S105 to S107 in the second embodiment of the present invention;
fig. 4 is a block flow diagram of steps S108 to S111 in the second embodiment of the present invention.
The list of elements is as follows:
1. a driver;
2. a motor;
3. an axle assembly;
4. a pipe die;
5. a permanent magnet;
6. a magnetic proximity switch;
7. an output shaft;
8. an encoder;
9. a belt;
11. a first terminal;
12. a second terminal;
13. a third terminal;
21. a first end;
22. a second end;
23. a third end;
31. a fixing seat;
32. a rotating shaft;
33. a driving wheel;
34. a first roller assembly;
35. a second roller assembly;
41. a flange;
81. a signal line;
231. a power line;
311. a mounting hole;
341. a first link;
342. a first roller;
351. a second link;
352. and a second roller.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
a pipe die positioning device as shown in fig. 1, comprising: a driver 1, a motor 2, a controller (not shown), an axle assembly 3, a pipe die 4, a permanent magnet 5 and a magnetic proximity switch 6;
the driver 1 comprises a first terminal 11, a second terminal 12 and a third terminal 13;
the driver 1 is a servo driver, is a controller for controlling a servo motor, acts like a frequency converter on a common alternating current motor, belongs to a part of a servo system, and is mainly applied to a high-precision positioning system. The servo motor is controlled in three modes of position, speed and moment, so that the high-precision positioning of the transmission system is realized.
The controller in this embodiment is a variable frequency driving controller, a digital electronic device with a microprocessor, and is used for driving a motor and various tubular pile control logics, and the controller mainly comprises a central DSP control center, a power supply part and an IGBT driving part.
The motor 2 comprises a first end 21, a second end 22 and a third end 23; the first end 21 is provided with an output shaft 7, the second end 22 is provided with an encoder 8, and the encoder 8 is connected with the first wiring terminal 11 through a signal line 81; the third end 23 is connected to the third terminal 13 via a power line 231;
the motor 2 in the present embodiment is preferably a variable frequency motor, and can convert a voltage signal into a torque and a rotation speed to drive a control object.
The encoder 8 is a device that compiles, converts, or communicates, transmits, and stores signals or data into a signal form. The encoder 8 converts angular displacement, called a code wheel, or linear displacement, called a code scale, into an electrical signal. Encoders can be classified into incremental and absolute types according to the operating principle. The incremental encoder converts the displacement into a periodic electric signal, and then converts the electric signal into counting pulses, and the number of the pulses is used for representing the size of the displacement. Each position of the absolute encoder corresponds to a determined digital code, so that its indication is only related to the start and end positions of the measurement, and not to the intermediate course of the measurement. The present embodiment employs an incremental encoder, and the displacement value is recorded by the pulse value of the encoder 8.
The controller is electrically connected with the driver 1 and the motor 2;
the wheel shaft assembly 3 is connected with the output shaft 7 through a belt 9;
the pipe die 4 is movably arranged on the wheel shaft assembly 3;
permanent magnets 5 mounted on the outer circumferential surface of the pipe die 4;
the magnetic proximity switch 6 is fixedly arranged on the wheel axle assembly 3 and is electrically connected with the second wiring terminal 12; the magnetic proximity switch 6 is one of proximity switches, and the magnetic proximity switch 6 detects a magnetic object by using an electromagnetic working principle and then generates a trigger switch signal output.
The magnetic proximity switch 6 is used for detecting the distance between the permanent magnet 5 and the magnetic proximity switch 6; in the case that the distance between the permanent magnet 5 and the magnetic proximity switch 6 is smaller than the preset distance, the preset distance is the minimum distance between the permanent magnet 5 and the magnetic proximity switch 6, the pipe die 4 in the embodiment is generally cylindrical and matched with the shape of the pipe pile, the permanent magnet 5 is arranged on the outer side surface of the pipe die 4, the shortest distance exists between the permanent magnet 5 and the magnetic proximity switch 6 when the pipe die 4 rotates for one circle, in the actual debugging process, the preset distance is generally 0.1-0.5 mm larger than the shortest distance because the signal output needs time, and the distance is detected through the magnetic proximity switch 6, and in the case that the distance between the permanent magnet 5 and the magnetic proximity switch 6 is smaller than the preset distance; the magnetic proximity switch 6 outputs a signal to the controller, which switches the mode of the driver 1 from a speed mode to a position control mode and clears the pulse value of the encoder 8.
According to the embodiment of the invention, by utilizing the characteristic of the magnetic proximity switch 6, when the distance between the permanent magnet 5 and the magnetic proximity switch 6 reaches the shortest distance, the magnetic proximity switch 6 and the permanent magnet 5 are positioned on the same horizontal line, at the moment, the encoder 8 is cleared, and the sliding stroke of the pipe die 4 can be recorded through the encoder 8, so that the pipe die 4 is driven to move to the passing position by controlling the motor, the accurate positioning is realized, and the positioning speed is high by adopting the device of the invention, and repeated correction is not needed.
The driver 1 has three modes, namely, a position control mode, a speed mode, and a torque control mode;
specifically, the position control mode generally determines the magnitude of the rotational speed by the frequency of externally input pulses, and determines the rotational angle by the number of pulses. The position mode is generally applied to positioning devices because it allows very tight control of both speed and position.
The speed control is to control the rotation speed through the input of analog quantity or the frequency of pulse, and the speed mode can be positioned in the outer ring PID control with the upper control device, but the position signal of the motor or the position signal of the direct load must be fed back to the upper for operation. The position mode also supports the direct load outer ring to detect the position signal, the encoder 8 at the motor shaft end only detects the motor position at the moment, the position signal is provided by the direct final load end detection device, and the advantage is that the error in the middle transmission process can be reduced, and the positioning precision of the whole system is increased.
The torque control mode is actually to control the current of the motor, the torque ring is an inner ring of the speed ring, and the mode is generally adopted in occasions needing to accurately control the torque, for example, in some links of winding and tension control, the speed ring can be saturated, and the torque control is realized through a current limiting mode.
Preferably, the axle assembly 3 comprises: a fixed seat 31, a rotating shaft 32 and a driving wheel 33; the fixed seat 31 is installed on the working platform, and the fixed seat 31 is provided with an installation hole 311; the rotating shaft 32 penetrates through the mounting hole 311 and is rotationally connected with the fixed seat 31; the driving wheel 33 is fixed on the rotating shaft 32, the belt 9 is wound on the driving wheel 33, and the motor 2 drives the output shaft 7 to rotate, so that the driving wheel 33 and the rotating shaft 32 are driven to rotate through the belt 9.
Preferably, the axle assembly 3 further includes a first roller assembly 34 and a second roller assembly 35, and the first roller assembly 34 and the second roller assembly 35 have the same structure and size; the first roller assembly 34 includes: the first connecting rod 341 and the first roller 342 are spliced into a whole along the axial direction of the rotating shaft 32; the first rollers 342 are provided in plurality, and each first roller 342 is fixedly connected to the first connecting rod 341 in series.
Further, the second roller assembly 35 includes a second connecting rod 351 and second rollers 352, the number of the second rollers 352 is the same as the number of the first rollers 342, and each second roller 352 is sequentially connected to the second connecting rod 351 in series; the second roller 352 and the first roller 342 form a support for the pipe die 4.
Further preferably, the outer side surface of the pipe die 4 is fixedly surrounded by a plurality of flanges 41, each flange 41 is tangential to the first roller 342 and the second roller 352, and the first roller 342 is driven by the rotating shaft 32 to drive the pipe die 4 to rotate.
Further, the magnetic proximity switch 6 is fixedly mounted on the fixing base 31.
Embodiment two:
a method for positioning a pipe die via a bit as shown in fig. 2, the method comprising:
step S101: the permanent magnet is arranged on one side of the pipe die, which is close to the wheel axle assembly, the magnetic proximity switch is fixedly arranged on the wheel axle assembly, and the center line of the magnetic proximity switch and the center line of the permanent magnet are arranged on the same plane;
specifically, the arrangement makes the permanent magnet be in the detection range of magnetic proximity switch, makes the distance that magnetic proximity switch detected more accurate simultaneously.
Step S102: starting a motor, wherein the motor drives the wheel shaft assembly through a belt so as to drive the pipe die to rotate;
step S103: after the high-speed centrifugation of the pipe die is finished, the driver controls the motor to decelerate, and in the decelerating process, when the running frequency of the pipe die is smaller than or equal to the preset frequency, the magnetic proximity switch is started.
The predetermined frequency referred to above is the lowest frequency of rotation of the die, typically 1HZ.
Step S104: and in the process of rotating the pipe die, detecting the distance between the permanent magnet and the magnetic proximity switch, and sending a signal to the controller by the magnetic proximity switch when the distance between the permanent magnet and the magnetic proximity switch is smaller than or equal to a preset threshold value.
Specifically, when the pipe die rotates for one circle, the shortest distance exists between the permanent magnet and the magnetic proximity switch, in the actual debugging process, because the signal output needs time, the preset value of the preset threshold value is generally 0.1-0.5 mm larger than the shortest distance, the distance is detected through the magnetic proximity switch, and the magnetic proximity switch sends a signal to the controller under the condition that the distance between the permanent magnet and the magnetic proximity switch is smaller than the preset threshold value.
The following steps are described below with the controller as the execution subject:
as shown in fig. 3, after the step of sending a signal to the controller by the magnetic proximity switch, it includes:
step S105: after receiving a signal sent by the magnetic proximity switch, switching a speed mode of the driver into a position control mode;
step S106: after recording the pulse value of the current encoder, resetting the pulse value of the encoder;
step S107: determining a pulse deviation value through a preset deviation value; and determining a first output frequency of the driver through the pulse deviation value.
Specifically, when the pipe die rotates and the rotation direction is anticlockwise, the distance between the permanent magnet and the magnetic proximity switch is a preset threshold value, the position of the pipe die is marked as a point A, the actual physical position of the pipe die passing through the position is marked as a point B, the preset offset value in the embodiment is the displacement of the pipe die rotating anticlockwise from the point A to the point B, the displacement is fixed, so that the pulse offset value can be determined according to a conversion formula of the pulse value and the displacement of the encoder through the preset offset value, then the pulse offset value is used as an input quantity, after PI adjustment, the output result is a value for adjusting the frequency of the frequency converter, namely the first output frequency, the PI adjustment is linear control, the control deviation is formed according to the given value and the actual output value, the proportion and the integral of the deviation are linearly combined to form a control quantity, and the controlled object is controlled. The purpose of the PI adjustment in this embodiment is to reduce the position deviation during the rotation of the pipe die with large inertia, so as to limit the output power of the frequency converter.
As shown in fig. 4, the step of determining the first output frequency of the driver by the pulse deviation value includes:
step S108: controlling the first output frequency output by the driver to be lower than a preset frequency through radiation limiting processing to obtain a second output frequency;
specifically, the amplitude limiting process refers to an operation of weakening all instantaneous values of a certain characteristic (such as voltage, current, power) of a signal exceeding a predetermined threshold value to be close to the threshold value, and reserving all other instantaneous values; i.e. the first output frequency is controlled below a preset frequency, which in this embodiment is typically 1HZ.
Step S109: determining a preset position of the pipe die for stopping moving according to the pulse deviation value;
according to the above description, the corresponding relationship exists between the pulse deviation value and the displacement from the point A to the point B, and according to the pulse deviation value, the controller can determine the preset position (namely the point B) where the pipe die stops moving.
Step S110: the driver controls the motor to drive the pipe die to rotate according to the second output frequency and the preset position of the pipe die for stopping moving;
step S111: and when the difference value between the actual position of the pipe die stopping movement and the preset position of the pipe die stopping movement is smaller than the preset deviation, locking the motor shaft.
The preset deviation is the maximum deviation of the passing position of the pipe die of the crane grabbing machine.
According to the tubular pile warp positioning method, in the motor deceleration process, the tubular mould crawls at a low speed according to the characteristics of the magnetic proximity switch, and the controller can accurately judge the distance of the tubular mould needing to slide through the pulse deviation value of the encoder; and then, the PI regulation is utilized, so that the actual error is further reduced, the pipe die accurately moves to the passing position, and the pipe die passing position positioning method in the embodiment can be used for positioning the pipe die and can also be applied to other large-inertia positioning scenes, so that the embodiment of the invention has wider application scenes compared with the existing positioning method.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (8)
1. A pipe die warp position locating device, comprising:
a driver including a first terminal, a second terminal, and a third terminal;
the motor comprises a first end, a second end and a third end; the first end is provided with an output shaft, the second end is provided with an encoder, and the encoder is connected with the first wiring terminal through a signal wire; the third end is connected with the third wiring terminal through a power line;
the controller is electrically connected with the driver and the motor;
the wheel shaft assembly is connected with the output shaft through a belt;
the pipe die is movably arranged on the wheel shaft assembly;
the permanent magnet is arranged on the outer ring surface of the pipe die;
the magnetic proximity switch is fixedly arranged on the wheel shaft assembly and is electrically connected with the second wiring terminal;
the magnetic proximity switch is used for detecting the distance between the permanent magnet and the magnetic proximity switch; and under the condition that the distance between the permanent magnet and the magnetic proximity switch is smaller than a preset distance, the magnetic proximity switch outputs a signal to the controller, and the controller switches the mode of the driver from a speed mode to a position control mode and clears the pulse value of the encoder.
2. A pipe die positioning apparatus according to claim 1, wherein the axle assembly comprises:
the fixing seat is arranged on the working platform and is provided with a mounting hole;
the rotating shaft penetrates through the mounting hole and is rotationally connected with the fixing seat;
the driving wheel is fixed on the rotating shaft, the belt is wound on the driving wheel, and the motor drives the output shaft to rotate, so that the driving wheel and the rotating shaft are driven to rotate through the belt.
3. The pipe die positioning apparatus of claim 2, wherein the axle assembly further comprises: first wheel subassembly and second wheel subassembly, first wheel subassembly includes:
the first connecting rod is spliced with the axial direction of the rotating shaft into a whole;
the first rollers are provided with a plurality of first rollers, and each first roller is sequentially and fixedly connected to the first connecting rod in series.
4. A pipe die positioning apparatus according to claim 3, wherein the second roller assembly comprises:
a second link;
the number of the second rollers is the same as that of the first rollers, and each second roller is sequentially connected with the second connecting rod in series; the second roller and the first roller form a supporting piece of the pipe die.
5. The pipe die passing position positioning device according to claim 4, wherein a plurality of flanges are fixedly arranged on the outer side face of the pipe die in a surrounding mode, each flange is tangential to the first roller and the second roller, and the first roller is driven by a rotating shaft to drive the pipe die to rotate.
6. The pipe die positioning device according to claim 2, wherein the magnetic proximity switch is fixedly mounted on the fixed base.
7. A method for locating a pipe die in a warp position, the method comprising:
the permanent magnet is arranged on one side of the pipe die, which is close to the wheel axle assembly, the magnetic proximity switch is fixedly arranged on the wheel axle assembly, and the center line of the magnetic proximity switch and the center line of the permanent magnet are arranged on the same plane;
starting a motor, wherein the motor drives the wheel shaft assembly through a belt so as to drive the pipe die to rotate;
after the high-speed centrifugation of the pipe die is finished, the driver controls the motor to decelerate, and in the decelerating process, when the running frequency of the pipe die is smaller than or equal to the preset frequency, the magnetic proximity switch is started;
detecting the distance between the permanent magnet and the magnetic proximity switch in the rotation process of the pipe die, and sending a signal to the controller by the magnetic proximity switch when the distance between the permanent magnet and the magnetic proximity switch is smaller than or equal to a preset threshold value;
after the step of sending a signal to the controller by the magnetic proximity switch, the method comprises the steps of:
after receiving a signal sent by the magnetic proximity switch, switching a speed mode of the driver into a position control mode;
after recording the pulse value of the current encoder, resetting the pulse value of the encoder;
determining a pulse deviation value through a preset deviation value;
and determining a first output frequency of the driver through the pulse deviation value.
8. The method of pipe die positioning according to claim 7, wherein the step of determining the first output frequency of the driver from the pulse deviation value comprises:
controlling the first output frequency output by the driver to be lower than a preset frequency through radiation limiting processing to obtain a second output frequency;
determining a preset position of the pipe die for stopping moving according to the pulse deviation value;
the driver controls the motor to drive the pipe die to rotate according to the second output frequency and the preset position of the pipe die for stopping moving;
and when the difference value between the actual position of the pipe die stopping movement and the preset position of the pipe die stopping movement is smaller than the preset deviation, locking the motor shaft.
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| CN202111421138.5A CN114030073B (en) | 2021-11-26 | 2021-11-26 | Pipe die warp positioning device and positioning method |
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| CN202111421138.5A CN114030073B (en) | 2021-11-26 | 2021-11-26 | Pipe die warp positioning device and positioning method |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2815234B2 (en) * | 1990-11-30 | 1998-10-27 | 株式会社神戸製鋼所 | Positioning mechanism of working device to formwork |
| CN104525891B (en) * | 2014-11-28 | 2017-02-22 | 沈阳亚特重型装备制造有限公司 | Water cooled centrifugal machine of pipe die sleeve applied to long tube drawing/heating grating system |
| CN204844459U (en) * | 2015-07-24 | 2015-12-09 | 河南双建管桩股份有限公司 | Static pressure stake centrifugation equipment tubular pile positioner |
| CN207616872U (en) * | 2017-10-13 | 2018-07-17 | 常州市常力锅炉制造安装有限公司 | Self locating device after pipe pile die centrifugation |
| CN209599537U (en) * | 2018-09-10 | 2019-11-08 | 双威管桩（珠海）有限公司 | A kind of tubular pile centrifugal molding machine |
| CN209851257U (en) * | 2018-12-14 | 2019-12-27 | 江苏华云桩业有限公司 | Tubular pile centrifuge normal position brake equipment |
| CN109849174A (en) * | 2019-04-03 | 2019-06-07 | 贵州长通集团有限公司 | A kind of electric pole centrifugal machine and control method with angle positioning function |
| CN210389634U (en) * | 2019-05-30 | 2020-04-24 | 南京钜力智能制造技术研究院有限公司 | Centrifugal positioning device of concrete pipe pile mould |
| CN210820067U (en) * | 2019-06-30 | 2020-06-23 | 周兆弟 | Prefabricated component centrifugal system |
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2021
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