CN116922072A - Rotation amount monitoring and adjusting device and method for turntable type screw locking device - Google Patents
Rotation amount monitoring and adjusting device and method for turntable type screw locking device Download PDFInfo
- Publication number
- CN116922072A CN116922072A CN202311195763.1A CN202311195763A CN116922072A CN 116922072 A CN116922072 A CN 116922072A CN 202311195763 A CN202311195763 A CN 202311195763A CN 116922072 A CN116922072 A CN 116922072A
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- turntable
- locking device
- screw locking
- type screw
- momentum
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/069—Multi-spindle machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
The application discloses a rotation quantity monitoring and adjusting device and method of a rotary table type screw locking device, comprising the following steps: the momentum amplifier is linked with the outer ring of the turntable of the screw locking device and is used for amplifying the rotation quantity of the turntable; the momentum detection mechanism obtains a detection value after the turntable rotates and is converted according to the output of the momentum amplifier; the adjusting disc is rotationally connected with the rotating shaft of the rotating disc and is used for installing each automatic screw driver; a fine adjustment mechanism linked to the adjustment plate; and the controller is electrically connected with the momentum detection mechanism, the fine adjustment mechanism and the turntable type screw locking device. The application has the effect of guaranteeing the accuracy of the screw mounting of the turntable type screw locking device.
Description
Technical Field
The application relates to the technical field of automatic screwing, in particular to a rotation amount monitoring and adjusting device and method of a rotary disc type screw locking device.
Background
At present, as the demand of electronic products increases, the requirement for the processing efficiency of the products increases, such as screwing and the like, and automation equipment is gradually replaced by manpower.
The rotary disc type screw locking device is characterized in that a plurality of tools are fixed on a rotary disc, a plurality of workpieces are fixed by the tools, a plurality of automatic screw drivers are used for respectively and rapidly screwing a plurality of different positions of each workpiece to finish processing equipment, and generally, the rotary disc rotates for one circle to finish all screw screwing work of a workpiece in the process, so that the processing efficiency can be effectively improved.
However, as the working time of the device is increased, the rotation error of the turntable caused by overheat transmission and abrasion causes a little dislocation between the screw driver and the screw hole, and the deviation occurs in the screw feeding process, so that part of the screw scrapes and abrades the workpiece in the driving process.
Disclosure of Invention
In order to ensure the screw feeding accuracy of the rotary disc type screw locking device, the application provides a rotary disc type screw locking device rotation quantity monitoring and adjusting device and a rotary disc type screw locking device rotation quantity monitoring and adjusting method.
In a first aspect, the application provides a rotation amount monitoring and adjusting device of a rotary disc type screw locking device, which adopts the following technical scheme:
a rotation amount monitoring and adjusting device of a rotary disc type screw locking device, comprising:
the momentum amplifier is linked with the outer ring of the turntable of the screw locking device and is used for amplifying the rotation quantity of the turntable;
the momentum detection mechanism obtains a detection value after the turntable rotates and is converted according to the output of the momentum amplifier;
the adjusting disc is rotationally connected with the rotating shaft of the rotating disc and is used for installing each automatic screw driver;
a fine adjustment mechanism linked to the adjustment plate; the controller is electrically connected with the momentum detection mechanism, the fine adjustment mechanism and the turntable type screw locking device;
wherein the controller is configured to:
acquiring a rotating disc rotation monitoring parameter of the rotating disc type screw locking device for the past time, and processing to obtain an expected rotation amount;
acquiring a detection value after conversion of a momentum amplifier fed back by a momentum detection mechanism;
calculating a rotation error value of the turntable according to the expected rotation amount and the converted detection value;
recording and generating a change curve of the converted detection value when the turntable rotates once;
controlling the fine adjustment mechanism to drive the adjusting disc to rotate according to the rotation error value, and correcting the positions of screw holes of the screw driver and the workpiece on the turntable;
and outputting an amplifier replacement prompt if the difference between the current converted detection value change curve and the preset standard curve is greater than a preset threshold value.
Optionally, the momentum amplifier comprises a driving arm, a piston cylinder module and a liquid level pipe, wherein one end of the driving arm is hinged to the turntable and is close to the outer ring of the turntable, and the driving arm is parallel to the turntable; the other end of the transmission arm is hinged to the piston cylinder module, so that the piston cylinder module stretches; the medium liquid is filled in the piston cylinder module, the liquid level pipe is communicated with the piston cylinder module, and the diameter of the liquid level pipe is smaller than that of a medium liquid cavity of the piston cylinder module.
Optionally, the piston cylinder module comprises a cylinder body, a piston rod and a guide rod, wherein the piston end of the piston rod is connected with the cylinder body in a sliding way, a guide groove is formed in the piston rod, the guide rod is fixed on a rotating amount monitoring and adjusting device of the turntable type screw locking device, and one end of the guide rod is inserted and connected with the guide groove in a sliding way; one end of the transmission arm, which is far away from the turntable, is hinged to the piston rod, and one end of the liquid level pipe is communicated with the cylinder body.
Optionally, the momentum detection mechanism comprises a balance plunger and a laser ranging sensor, the balance plunger is slidably connected in the liquid level pipe, the laser ranging sensor is installed at one end of the liquid level pipe, which is far away from the piston cylinder module, and the laser ranging sensor is electrically connected with the controller and is used for detecting the position of the balance plunger; and one end of the liquid level pipe, which is close to the laser ranging sensor, is provided with an air pressure balance hole.
Optionally, the regulating disc is the fluted disc, fine setting mechanism includes motor and driving gear, the driving gear is fixed in the output shaft of motor, driving gear meshes in the regulating disc, and the diameter of driving gear is less than the diameter of regulating disc.
Optionally, the momentum amplifier includes a plurality of secondary gears and center pillar, and a secondary gear is fixed in the carousel with the central axis, and other secondary gears intermeshing and at least one secondary gear meshing are fixed in the secondary gear of carousel in proper order, and center pillar is fixed to a secondary gear that is farthest from the carousel, center pillar and secondary gear rotate and are connected in carousel formula screw lock attaches device rotation volume monitoring adjusting device's frame.
Optionally, the momentum detection mechanism includes a rotary encoder mounted to the center post.
In a second aspect, the application provides a method for monitoring and adjusting the rotation amount of a rotary table type screw locking device, which adopts the following technical scheme:
the rotation amount monitoring and adjusting method for the rotary disc type screw locking device is applied to the rotation amount monitoring and adjusting device for the rotary disc type screw locking device.
In summary, the present application includes at least one of the following beneficial technical effects: the method has the advantages that the situation that the real error cannot be obtained in the current driving environment scene due to direct rotation quantity (angle) detection of the rotating shaft of the rotating disc is abandoned, and the situation that the error is added up and misplaced is corrected;
according to the application, the momentum amplifier is used for linking the outer ring of the turntable, and the rotation quantity is amplified again, so that the rotation error of the rotating shaft of the smaller turntable is displayed more greatly and can be detected; meanwhile, after the rotation error value is obtained, the position of the screwdriver is adjusted through the adjusting disc 4 instead of being adjusted through the adjusting disc, and because the adjusting disc 4 for installing the screwdriver does not rotate constantly and continuously, the adjusting disc 4 is little in abrasion and cannot overheat, the error is small, the correction is more accurate, and the influence on the correction effect caused by the transmission accompanying error of the rotating disc itself can be avoided.
Drawings
FIG. 1 is a schematic diagram of a control architecture of the present application;
FIG. 2 is a schematic diagram of the momentum amplifier of the present application;
FIG. 3 is a schematic view of the structure of the adjusting plate and the automatic screw driver of the present application;
fig. 4 is a schematic structural view of the piston cylinder module of the present application.
Reference numerals illustrate: 1. a controller; 21. a transmission arm; 22. a piston cylinder module; 221. a cylinder; 222. a piston rod; 223. a guide rod; 23. a liquid level pipe; 31. a balance plunger; 32. a laser ranging sensor; 4. an adjusting plate; 5. and a motor.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a rotation amount monitoring and adjusting device of a rotary disc type screw locking device.
Referring to fig. 1 to 4, the rotation amount monitoring and adjusting device of the rotary disc type screw locking device comprises:
a momentum amplifier, which is linked with the rotary disk of the screw locking device and is used for amplifying the rotation quantity (angle) of the rotary disk;
the momentum detection mechanism obtains a detection value after the turntable rotates and is converted according to the output of the momentum amplifier;
the adjusting disc 4 is rotationally connected with the rotating shaft of the rotating disc and is used for installing each automatic screw driver;
a fine adjustment mechanism linked to the adjustment plate 4; and a controller 1 electrically connected to the momentum detection mechanism, the fine adjustment mechanism and the turntable type screw locking device.
From the above, it can be seen that:
firstly, the device does not directly detect the rotation quantity of the rotating shaft of the rotating disc type screw locking device, because of an intuitive reason: the screw driver is usually a screw on the outer ring of the turntable, a few transmission errors of the rotating shaft of the turntable have less influence on the screw driver when in the inner ring, but different in the outer ring of the turntable, the screw driver is amplified by the turntable, and the larger the diameter of the turntable is, the more serious the situation is, so that the detection of the rotating shaft of the turntable is sequentially used as a correction basis and is not accurate.
Secondly, after the rotation error is obtained, the rotary table of the rotary table type screw locking device is not regulated to correct, and the rotary table type screw locking device is only used for correcting the error due to the fact that the transmission of the rotary table type screw locking device is problematic, so that the expected correction effect cannot be achieved; in addition, it should be noted that the correction mode of continuously detecting the rotation amount by the amount of the difference and stopping after the detection of the amount is relatively bad because the system takes time to receive the signal, process and respond to the control, resulting in a certain lag in correction.
The momentum booster comprises a drive arm 21, a piston cylinder module 22 and a liquid level tube 23. One end of the driving arm 21 is hinged to the turntable and is close to the outer ring of the turntable, and the driving arm 21 is parallel to the turntable.
The other end of the transmission arm 21 is hinged to the piston cylinder module 22, so that the piston cylinder module 22 stretches and contracts; the medium liquid is filled in the piston cylinder module 22, the liquid level pipe 23 is communicated with the piston cylinder module 22, and the diameter of the liquid level pipe is smaller than that of a medium liquid cavity of the piston cylinder module 22, so that the small error of the rotating shaft of the turntable is further amplified and displayed.
It will be appreciated that the larger the difference between the diameter of the liquid level tube 23 and the diameter of the medium liquid cavity of the piston cylinder module 22, the more subtle changes can be amplified.
Referring to fig. 2 and 4, the piston cylinder module 22 includes a cylinder 221, a piston rod 222 and a guide rod 223, wherein the piston end of the piston rod 222 is slidingly connected to the cylinder 221, a guide groove is formed in the piston rod 222, one end of the guide rod 223 is fixed to a frame of the rotation amount monitoring and adjusting device of the turntable type screw locking device, and the other end of the guide rod 223 is inserted and connected to the guide groove in a sliding manner, namely, the piston rod 222 slides along the guide rod 223. This arrangement is to prevent the piston from being skewed and thus to affect the use.
One end of the driving arm 21, which is far away from the turntable, is hinged to a piston rod 222, and one end of the liquid level pipe 23 is communicated with a cylinder 221.
According to the above arrangement, when the turntable rotates, the piston rod 222 is pulled to move by the driving arm 21, the piston rod 222 moves to push or pump the medium liquid pre-poured in the cylinder 221, and the liquid level in the liquid level pipe 23 is changed to show the rotation amount of the turntable. At this time, the rotation angle of the turntable can be represented by the liquid level variation of the liquid level pipe 23, and the relationship between the two is verified according to the actual specification and the size of each structure of the device.
Referring to fig. 4, the momentum detection mechanism includes a balance plunger 31 and a laser ranging sensor 32.
The balance plunger 31 is slidably connected in the liquid level pipe 23, and a laser ranging sensor 32 is arranged at one end of the liquid level pipe 23 far away from the piston cylinder module 22. The laser ranging sensor 32 is electrically connected to the controller 1 and detects the position of the balance plunger 31. The liquid level tube 23 is close to one end of the laser ranging sensor 32 and is provided with an air pressure balance hole which can ensure the normal movement of the balance plunger 31.
From the above, the rotation amount (angle) of each rotation of the turntable can be obtained by detecting the balance plunger 31 by the laser ranging sensor 32.
In this device, regulating disk 4 is the fluted disc, and fine-tuning includes motor 5 and driving gear, and the driving gear is fixed in the output shaft of motor 5, and the driving gear meshes in regulating disk 4, and the diameter of driving gear is less than the diameter of regulating disk.
The above-mentioned driving gear and the size setting of regulating disk 4 are in order to utilize the pinion rotation to drive the pivoted deceleration effect of gear wheel, and the rotation volume of the regulating disk 4 of more accurate control guarantees the correction effect.
In the present apparatus, the controller 1 is configured to:
acquiring a rotating monitoring parameter of a rotating disc from a control system of the rotating disc type screw locking device, and processing to obtain an expected rotating quantity;
acquiring a detection value after conversion of a momentum amplifier fed back by the momentum detection mechanism, namely a detection value output by the laser ranging sensor 32;
calculating a rotation error value of the turntable according to the expected rotation amount and the converted detection value;
and controlling the fine adjustment mechanism to drive the adjusting disc 4 to rotate according to the rotation error value, and correcting the positions of screw holes of the screw driver and the workpiece on the turntable.
According to the arrangement, the device can reduce the deviation influence of the turntable transmission error on screw driving. However, the momentum amplifier is also a mechanical structure and keeps linkage with the turntable, so after a period of use, a larger error may occur due to abrasion and the like, which leads to erroneous judgment of the correction process, so the controller 1 is further configured to:
recording and generating a change curve of the converted detection value when the turntable rotates once;
and outputting an amplifier replacement prompt if the difference between the current converted detection value change curve and the preset standard curve is greater than a preset threshold value.
According to the arrangement, the device can be found in time when a momentum amplifier has a problem, so that the using effect of the device is guaranteed.
In another embodiment of the application, the momentum amplifier comprises a plurality of secondary gears and a center post, one secondary gear is fixed on the turntable with the central axis, the other secondary gears are meshed with each other in sequence, at least one secondary gear is meshed with the secondary gear fixed on the turntable, one secondary gear farthest from the turntable is fixed on the center post, and the center post and the secondary gears are connected with a frame of the turntable type screw locking device rotation amount monitoring and adjusting device in a rotating mode.
At this time, the momentum detecting mechanism includes a rotary encoder mounted to the center pillar, that is, detects the rotation amount of the turntable by the rotary encoder.
The above-described turntable rotation error detection of the previous embodiment can be realized, but because of the multi-stage gear transmission, on the one hand, the required driving force for driving the turntable increases, and on the other hand, the multi-stage gears wear faster. The device is therefore superior to the solution shown in the previous embodiment.
The embodiment of the application also discloses a method for monitoring and adjusting the rotation quantity of the rotary disc type screw locking device.
The method for monitoring and adjusting the rotation quantity of the rotary disc type screw locking device comprises the step of monitoring and adjusting the rotation quantity of the rotary disc type screw locking device by using the rotary disc type screw locking device rotation quantity monitoring and adjusting device.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. The utility model provides a carousel formula screw lock attaches device rotation number monitoring adjusting device which characterized in that:
the momentum amplifier is linked with the outer ring of the turntable of the screw locking device and is used for amplifying the rotation quantity of the turntable;
the momentum detection mechanism obtains a detection value after the turntable rotates and is converted according to the output of the momentum amplifier;
the adjusting disc (4) is rotationally connected with the rotating shaft of the rotating disc and is used for installing each automatic screwdriver;
a fine adjustment mechanism linked to the adjustment plate (4); and, a controller (1) electrically connected to the momentum detection mechanism, the fine adjustment mechanism and the turntable type screw locking device;
wherein the controller (1) is arranged to:
acquiring a rotating disc rotation monitoring parameter of the rotating disc type screw locking device for the past time, and processing to obtain an expected rotation amount;
acquiring a detection value after conversion of a momentum amplifier fed back by a momentum detection mechanism;
calculating a rotation error value of the turntable according to the expected rotation amount and the converted detection value;
recording and generating a change curve of the converted detection value when the turntable rotates once;
controlling the fine adjustment mechanism to drive the adjusting disc (4) to rotate according to the rotation error value, and correcting the positions of screw holes of the screw driver and the workpiece on the turntable;
and outputting an amplifier replacement prompt if the difference between the current converted detection value change curve and the preset standard curve is greater than a preset threshold value.
2. The rotation amount monitoring and adjusting device of the turntable type screw locking device according to claim 1, wherein: the momentum amplifier comprises a transmission arm (21), a piston cylinder module (22) and a liquid level pipe (23), one end of the transmission arm (21) is hinged to the rotary table and is close to the outer ring of the rotary table, and the transmission arm (21) is parallel to the rotary table; the other end of the transmission arm (21) is hinged to the piston cylinder module (22) to enable the piston cylinder module (22) to stretch; the piston cylinder module (22) is internally filled with medium liquid, and the liquid level pipe (23) is communicated with the piston cylinder module (22) and has a diameter smaller than the medium liquid cavity diameter of the piston cylinder module (22).
3. The rotation amount monitoring and adjusting device of the turntable type screw locking device according to claim 2, wherein: the piston cylinder module (22) comprises a cylinder body (221), a piston rod (222) and a guide rod (223), wherein the piston end of the piston rod (222) is connected with the cylinder body (221) in a sliding manner, a guide groove is formed in the piston rod (222), the guide rod (223) is fixed on a rotating amount monitoring and adjusting device of the turntable type screw locking device, and one end of the guide rod is inserted and connected with the guide groove in a sliding manner; one end of the transmission arm (21) far away from the turntable is hinged to a piston rod (222), and one end of the liquid level pipe (23) is communicated with the cylinder body (221).
4. The rotation amount monitoring and adjusting device of the turntable type screw locking device according to claim 2, wherein: the momentum detection mechanism comprises a balance plunger (31) and a laser ranging sensor (32), the balance plunger (31) is slidably connected in the liquid level pipe (23), the laser ranging sensor (32) is arranged at one end, far away from the piston cylinder module (22), of the liquid level pipe (23), and the laser ranging sensor (32) is electrically connected to the controller (1) and used for detecting the position of the balance plunger (31); and one end of the liquid level pipe (23) close to the laser ranging sensor (32) is provided with an air pressure balance hole.
5. The rotation amount monitoring and adjusting device of the turntable type screw locking device according to claim 1, wherein: the adjusting disc (4) is a fluted disc, the fine adjustment mechanism comprises a motor (5) and a driving gear, the driving gear is fixed on an output shaft of the motor (5), the driving gear is meshed with the adjusting disc (4), and the diameter of the driving gear is smaller than that of the adjusting disc (4).
6. The rotation amount monitoring and adjusting device of the turntable type screw locking device according to claim 1, wherein: the momentum amplifier comprises a plurality of secondary gears and a center column, one secondary gear is fixed on the turntable with the central axis, other secondary gears are meshed with each other in sequence, at least one secondary gear is meshed with the secondary gear fixed on the turntable, one secondary gear farthest from the turntable is used for fixing the center column, and the center column and the secondary gears are connected to a frame of the turntable type screw locking device rotation amount monitoring and adjusting device in a rotating mode.
7. The rotation amount monitoring and adjusting device for the rotary disc type screw locking device according to claim 6, wherein: the momentum detection mechanism includes a rotary encoder mounted to the center post.
8. A method for monitoring and adjusting the rotation quantity of a rotary disc type screw locking device is characterized in that: the rotation amount of the rotary disc type screw locking device is monitored and adjusted by using the rotation amount monitoring and adjusting device of the rotary disc type screw locking device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311195763.1A CN116922072B (en) | 2023-09-18 | 2023-09-18 | Rotation amount monitoring and adjusting device and method for turntable type screw locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311195763.1A CN116922072B (en) | 2023-09-18 | 2023-09-18 | Rotation amount monitoring and adjusting device and method for turntable type screw locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116922072A true CN116922072A (en) | 2023-10-24 |
| CN116922072B CN116922072B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311195763.1A Active CN116922072B (en) | 2023-09-18 | 2023-09-18 | Rotation amount monitoring and adjusting device and method for turntable type screw locking device |
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| Publication number | Publication date |
|---|---|
| CN116922072B (en) | 2023-11-17 |
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