CN109570979B - Automatic screw assembling and disassembling control method - Google Patents
Automatic screw assembling and disassembling control method Download PDFInfo
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- CN109570979B CN109570979B CN201811523486.1A CN201811523486A CN109570979B CN 109570979 B CN109570979 B CN 109570979B CN 201811523486 A CN201811523486 A CN 201811523486A CN 109570979 B CN109570979 B CN 109570979B
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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
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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
- B23P19/001—Article feeders for assembling machines
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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
- B23P19/001—Article feeders for assembling machines
- B23P19/004—Feeding the articles from hoppers to machines or dispensers
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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
- B23P19/001—Article feeders for assembling machines
- B23P19/006—Holding or positioning the article in front of the applying tool
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Abstract
The invention discloses a screw automatic loading and unloading control method, which comprises the steps that a screw feeding mechanism is arranged for feeding screws, a screw loading and unloading mechanism is arranged for loading screws obtained from the screw feeding mechanism into a workpiece and unloading the screws on the workpiece, an operation mechanism is arranged for driving the screw loading and unloading mechanism to operate, and a workpiece positioning table is arranged for positioning the workpiece; a screw collecting device is arranged for collecting the disassembled screws; the control method comprises screw loading control and screw unloading control. According to the automatic screw assembling and disassembling control method, all parts are reasonably designed and distributed, so that the screw in the workpiece can be assembled and disassembled, the disassembling and assembling positioning are accurate, and the cost is low. Meanwhile, the multi-screw assembling and disassembling device can realize simultaneous assembling and disassembling of multiple screws, has the characteristics of high efficiency, intellectualization and convenience in operation, and has important popularization value.
Description
Technical Field
The invention relates to the technical field of gear installation, in particular to a screw automatic loading and unloading control method.
Background
The carburizing and quenching of the gear is a common processing means for the gear, and the material of the carburized workpiece is generally low-carbon steel or low-carbon alloy steel (the carbon content is less than 0.25%). After carburization, the chemical composition of the steel surface can approach high carbon steel. After carburization, the workpiece is quenched to obtain high surface hardness, high wear resistance and fatigue strength, and the toughness of the core part after quenching of the low-carbon steel is kept, so that the workpiece can bear impact load.
When carburizing, not all structures of the gear are integrally carburized, a plurality of threaded holes are arranged at the edge of the lower end of the driven bevel gear at annular intervals, if the threaded holes and other parts of the gear are carburized together, threads can penetrate, and the hardness of the surface and the core of the threads is basically the same after quenching, so that the toughness is reduced, the brittleness is increased, the use performance of the threaded holes is greatly reduced, and quality accidents can be caused. So that the carburization prevention treatment is required for the carburization of the threaded driver.
In the prior art, aiming at the seepage prevention of a threaded hole of a gear, a method of mounting a screw and then coating an anti-seepage coating on the screw part is generally adopted, and after carburizing heat treatment, the screw is dismounted; the operation generally depends on manual screw loading and unloading, so that the possibility that the screw is not loaded in place or is not loaded exists, the subsequent use of the workpiece is influenced, and the workpiece is even scrapped; the manual screw assembling and disassembling process is long in time consumption and high in labor intensity of workers, workpieces are moved by assembling and disassembling screws, the workpieces are prone to being collided, and the like, so that hidden dangers are brought to the quality of the workpieces.
At present, a special screw assembling and disassembling method for a gear does not exist, the existing general screw assembling method can only singly realize the assembling of a screw or the disassembling of the screw, and for a product which needs both the screw assembling process and the screw disassembling process, a plurality of devices are needed for operation, so that the cost is high, and the efficiency is low.
Disclosure of Invention
The invention provides a screw automatic loading and unloading control method for overcoming the defects in the prior art, which can greatly improve the efficiency of assembling and disassembling screws, and has the advantages of low cost, high automation degree and convenient operation.
In order to solve the technical problems, the technical scheme is as follows:
the automatic screw loading and unloading control method is provided, wherein a screw feeding mechanism is arranged for feeding screws, a screw loading and unloading mechanism is arranged for loading the screws obtained from the screw feeding mechanism into a workpiece and unloading the screws on the workpiece, an operation mechanism is arranged for driving the screw loading and unloading mechanism to operate, and a workpiece positioning table is arranged for positioning the workpiece; a screw collecting device is arranged for collecting the disassembled screws;
the control method comprises the steps of screw loading control and screw unloading control;
the screw loading control method comprises the following steps:
A1. positioning a workpiece to be screwed on a workpiece positioning table;
A2. the screw feeding mechanism adopts a vibration mode to arrange the screws in sequence; positioning the currently required screws;
A3. the operation mechanism drives the screw loading and unloading mechanism to reach the screw positioning position, the positioned screw is taken out, the screw loading and unloading mechanism is positioned to the workpiece positioning table, the workpiece positioning table aligns the screw hole with the screw, and the screw loading and unloading mechanism locks the screw into the workpiece;
the screw unloading control method comprises the following steps:
B1. placing a workpiece to be unscrewed on a workpiece positioning table;
B2. the operation mechanism drives the screw loading and unloading mechanism to reach the workpiece positioning table;
B3. the workpiece positioning table positions the screw of the workpiece to a station of the screw loading and unloading mechanism, and the screw loading and unloading mechanism unloads the screw;
B4. the operation mechanism drives the screw loading and unloading mechanism to reach the screw collecting device, and the screws are unloaded.
Furthermore, the screw loading and unloading mechanism is arranged on the feeding mechanism, the workpiece positioning table is arranged on one side of the feeding mechanism, and a screw collecting device is arranged between the workpiece positioning table and the feeding mechanism; the running mechanism comprises a guide rail and a driving device for driving the screw loading and unloading mechanism to move along the guide rail, the guide rail comprises a first guide rail, a second guide rail and a third guide rail which are vertical to each other, the driving device drives the screw loading and unloading mechanism to move up and down along the third guide rail, to reciprocate back and forth along the first guide rail and to reciprocate left and right along the second guide rail;
the feeding mechanism comprises a vibration disc, a feeding part and a distributor which are connected in sequence;
in the step a2, the vibration disc vibrates the screws into a state that the grabbing part faces upwards, the feeding part is a long and narrow channel, the screws are arranged in a queue, and the distributor is provided with a groove for clamping one screw so as to realize the positioning of the current screw to be taken.
Further, the workpiece positioning table comprises a circular base, a stepped chuck arranged on the circular base and a driving mechanism for driving the stepped chuck to act; in the step A1 and the step B1, after the workpiece is placed in the circular base of the workpiece positioning table, the stepped chuck is driven to move to clamp the workpiece.
Further preferably, in the step a3, it is determined whether the screw workpiece is locked in place, and if not, an alarm is given.
Further, in step a3, a depth sensor is provided to sense the depth of the screw mounting and dismounting mechanism being lowered, so as to determine whether the screw mounting and dismounting mechanism is locking the screw in place.
Further, in the step B4, by providing a stopping portion at the feeding port of the screw collecting device, when the operating mechanism drives the screw assembling and disassembling mechanism to reach the upper portion of the screw collecting device, the screw is controlled to continue to contact with the stopping portion, and the screw is unloaded into the screw collecting device by the resistance of the stopping portion.
Furthermore, the two feeding mechanisms and the two screw loading and unloading mechanisms are arranged symmetrically left and right, and the two feeding mechanisms are arranged symmetrically left and right;
in the step A2, screws are simultaneously supplied by two feeding mechanisms; in the step A3 and the step B3, the operation mechanism simultaneously drives the two screw assembling and disassembling mechanisms to respectively reach the two screw positioning positions of the workpiece, and the two screws are assembled and disassembled simultaneously; after the screws are assembled and disassembled, the workpiece positioning table is controlled to rotate, and the next pair of screws are assembled and disassembled.
Further, in the steps a3 and B3, when the workpiece is a regular gear and the threaded holes on the gear are uniformly positioned, the positioning distance between the two screw loaders is the center distance of the two threaded holes passing through the center connection of the gear; after the screws are assembled and disassembled, the gear is controlled to rotate by a preset angle, and the next screw is assembled and disassembled.
Further, in step a3, a displacement sensor is provided at the screw mounting/dismounting mechanism, and the positioning distance between the two screw mounting/dismounting mechanisms is sensed.
Furthermore, the first guide rail comprises a pair of guide rails which are arranged in bilateral symmetry, the second guide rail crosses the first guide rail through a sliding block, the third guide rail is a pair of guide rails, and the third guide rail is vertically arranged on the second guide rail through the sliding block; the pair of screw loading and unloading mechanisms are respectively arranged on the third guide rail through sliding blocks; and the first guide rail, the second guide rail and the third guide rail are respectively provided with a position sensor for positioning the screw assembling and disassembling mechanism to reach the thread positioning part of the feeding mechanism and the assembling and disassembling station of the screw assembling and disassembling mechanism on the workpiece positioning table.
Compared with the prior art, the invention has the beneficial effects that:
the invention designs the feeding mechanism, the screw loading and unloading mechanism, the running mechanism, the screw collecting device and the workpiece positioning table of the device aiming at the structural characteristics of the driven cylindrical gear, can realize automatic and intelligent screw loading and unloading, can simultaneously disassemble or lock two screws by the design of double heads, and improves the working efficiency by at least more than one time.
In order to automatically store the disassembled screws, the screw collecting device is arranged, not only has the functions of storage and storage, but also is provided with the stop device, so that the screws can be effectively and accurately placed in the screw collecting device from the screw device; the workpiece positioning table is designed, so that the workpiece can be easily placed and detached; and the workpiece positioning table is driven to operate through a rotating motor, so that the screw can be locked in and detached accurately only by rotating the workpiece for a certain position and the movement of the loading and unloading mechanism is not required to be changed.
According to the automatic screw assembling and disassembling control method, all parts are reasonably designed and distributed, so that the screw in the workpiece can be assembled and disassembled, the disassembling and assembling positioning are accurate, and the cost is low. Meanwhile, the multi-screw assembling and disassembling device can realize simultaneous assembling and disassembling of multiple screws, has the characteristics of high efficiency, intellectualization and convenience in operation, and has important popularization value.
Drawings
Fig. 1 is a schematic structural view of an automatic screw mounting and dismounting device according to embodiment 2.
Fig. 2 is a schematic structural view of the feeding mechanism.
Fig. 3 is a schematic structural diagram of the workpiece positioning table.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for purposes of better illustrating the present embodiments, certain features of the drawings may be omitted, enlarged or reduced and do not represent actual workpiece dimensions; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
The embodiment provides a screw automatic loading and unloading control method, which comprises the steps that a screw feeding mechanism is arranged for feeding screws, a screw loading and unloading mechanism is arranged for loading the screws obtained from the screw feeding mechanism into a workpiece and unloading the screws on the workpiece, an operation mechanism is arranged for driving the screw loading and unloading mechanism to operate, and a workpiece positioning table is arranged for positioning the workpiece; and a screw collecting device is arranged for collecting the disassembled screws.
The screw loading and unloading mechanism is arranged on the feeding mechanism, the workpiece positioning table is arranged on one side of the feeding mechanism, and the screw collecting device is arranged between the workpiece positioning table and the feeding mechanism.
The operation mechanism comprises a guide rail and a driving device for driving the screw loading and unloading mechanism to move along the guide rail, the guide rail comprises a first guide rail, a second guide rail and a third guide rail which are vertical to each other, the driving device drives the screw loading and unloading mechanism to move up and down along the third guide rail, the screw loading and unloading mechanism reciprocates back and forth along the first guide rail, and the screw loading and unloading mechanism reciprocates left and right along the second guide rail. And position sensors are arranged at the first guide rail, the second guide rail and the third guide rail.
As shown in fig. 2, the feeding mechanism includes a vibration plate, a feeding portion and a distributor connected in sequence.
As shown in fig. 3, the workpiece positioning table includes a circular base, a stepped chuck mounted on the circular base, and a driving mechanism for driving the stepped chuck to move; the driving mechanism of the working positioning table comprises a first driving mechanism for driving the stepped chuck to move inside and outside and a second driving mechanism for driving the circular base to rotate.
The screw collecting device is a rectangular basket body with an opening at the top end, and a stopping part is arranged at the opening of one end of the rectangular basket body close to the distributor. The stopping part is arranged in parallel with the bottom of the rectangular basket body, the non-fixed end is provided with a groove, and the width of the groove is larger than the diameter of the screw rod part.
The control method comprises screw loading control and screw unloading control.
The screw installation control method comprises the following steps:
A1. and positioning the workpiece to be screwed on the workpiece positioning table.
After a workpiece to be screwed is placed in a circular base of the workpiece positioning table, a first driving mechanism drives a stepped chuck to move to clamp the workpiece; the second driving mechanism drives the workbench to rotate, so as to drive the workpiece to rotate, and the screw hole to be mounted is positioned under a mounting and dismounting station of the screw mounting and dismounting mechanism.
A2. The screw feeding mechanism adopts a vibration mode to arrange the screws in sequence; and positions the currently required screws.
As shown in fig. 2, the vibration plate 21 vibrates the screws to form a gripping part facing upwards, the feeding part 22 is a long and narrow channel for queuing the screws, and the distributor 23 is provided with a groove for clamping one screw to position the current screw to be taken.
A3. The operation mechanism drives the screw loading and unloading mechanism to reach the screw positioning position, the positioned screw is taken out, the screw loading and unloading mechanism is positioned to the workpiece positioning table, the workpiece positioning table aligns the screw hole with the screw, and the screw loading and unloading mechanism locks the screw into the workpiece.
The operation mechanism positions the screw loading and unloading mechanism to the position right above the screw to be taken through the positioning of the first guide rail, the second guide rail and the position sensor, and the screw loading and unloading mechanism descends along the third guide rail to suck the screw;
after the screws are successfully sucked, the third guide rail drives the screw loading and unloading mechanism to ascend, and the screw loading and unloading mechanism moves forwards along with the first guide rail until the position sensor senses the position in place and stays right above the workpiece positioning table; the screw loading and unloading mechanism descends to load screws.
And judging whether the screw workpiece is locked in place or not, and if not, giving an alarm.
As a specific embodiment, a depth sensor is arranged to sense the descending depth of the screw assembling and disassembling mechanism so as to judge whether the screw assembling and disassembling mechanism locks the screw in place.
After assembly, the screw assembly mechanism returns to the initial position.
And loosening the stepped chuck of the workpiece positioning table, and taking down the workpiece.
Secondly, the screw unloading control method comprises the following steps:
B1. and placing the workpiece to be unscrewed on a workpiece positioning table.
After a screw unloading workpiece is placed in a circular base of the workpiece positioning table, a first driving mechanism drives a stepped chuck to move to clamp the workpiece;
B2. the operation mechanism drives the screw loading and unloading mechanism to reach the workpiece positioning table.
The screw assembling and disassembling mechanism moves along the first guide rail, the second guide rail and the third guide rail under the driving of the driving device and reaches a screw assembling and disassembling station.
B3. The workpiece positioning table positions the screw of the workpiece to the station of the screw assembling and disassembling mechanism, and the screw assembling and disassembling mechanism unloads the screw.
The second driving mechanism drives the workbench to rotate to drive the workpiece to rotate, so that the screw hole to be mounted is positioned under a mounting and dismounting station of the screw mounting and dismounting mechanism; the screw removing mechanism descends to remove the screw, and the driving device drives the screw mechanism to ascend after the screw is successfully removed.
B4. The operation mechanism drives the screw loading and unloading mechanism to reach the screw collecting device, and the screws are unloaded.
Through the stopping part arranged at the feeding port of the screw collecting device, when the running mechanism drives the screw loading and unloading mechanism to reach the upper part of the screw collecting device, the control screw is continuously contacted with the stopping part and reaches the groove of the stopping part, and the screw is unloaded into the rectangular basket body of the screw collecting device under the resistance of the stopping part.
And loosening the stepped chuck of the workpiece positioning table, and taking down the workpiece.
According to the control method, all the parts are reasonably designed and distributed, so that the assembly of screws in the workpiece can be realized, the disassembly can be realized, and the disassembly, the assembly and the positioning are accurate.
Example 2
The difference between this embodiment and embodiment 1 is that the method for controlling the automatic screw mounting and dismounting provided by this embodiment is suitable for simultaneous mounting and dismounting of multiple screws.
As shown in fig. 1, the double-head automatic screw loading and unloading device of the embodiment comprises a machine tool body 1, a feeding mechanism 2, a screw loading and unloading mechanism, an operation mechanism, a screw collecting device 4 and a workpiece positioning table 5, wherein the screw loading and unloading mechanism is installed above the machine tool body 1, the operation mechanism drives the screw loading and unloading mechanism to operate, the feeding mechanism 2 is installed below the screw loading and unloading mechanism, the workpiece positioning table 5 is arranged on one side of the feeding mechanism 2, and the screw collecting device 4 is arranged between the feeding mechanism 2 and the workpiece positioning table 5;
the two feeding mechanisms 2 and the two screw assembling and disassembling mechanisms are arranged symmetrically left and right, and the two feeding mechanisms 2 are arranged symmetrically left and right;
the feeding mechanism 2 includes a vibration plate 21, a feeding portion 22, and a distributor 23.
The screw assembling and disassembling mechanism comprises a screw gun body 31, a gun head 32 and an adsorption part 33 which are connected in sequence; the screw gun body 31 is connected to the third guide rail 63 through a sliding block, and the adsorption part 33 is located at the end part of the gun head 32 and used for adsorbing screws.
The first guide rails 61 comprise a pair of guide rails which are arranged in a bilateral symmetry mode, the second guide rails 62 cross over the first guide rails 61 through sliding blocks, the third guide rails 63 are a pair of guide rails and are vertically arranged on the second guide rails 62 through the sliding blocks; the pair of screw assembling and disassembling mechanisms are respectively arranged on the third guide rail 63 through sliding blocks; and the first guide rail 61, the second guide rail 62 and the third guide rail 63 are respectively provided with a position sensor for positioning the screw assembling and disassembling mechanism to reach the thread positioning position of the feeding mechanism and the assembling and disassembling station of the screw assembling and disassembling mechanism on the workpiece positioning table.
Specifically, as shown in the figure, the first guide rails 61 are symmetrically arranged along the Y-axis direction of the machine tool body, and the second guide rails 62 are arranged along the X-axis direction of the machine tool body; the third guide rail 63 is arranged along the Z-axis direction of the machine tool body; the first guide rail 61, the second guide rail 62 and the third guide rail 63 are all high-precision linear guide rails and are driven by a stepping servo motor.
A control system is arranged in the machine tool body 1 and used for controlling the operation of the screw loading and unloading mechanism, the operation mechanism and the feeding mechanism 2.
One end of the gun head 32 is provided with a displacement sensor 71; a depth sensor 72 is provided near one end of the gun body 31.
The screw collecting device 4 is a rectangular casing 41 with an open top end, and a stop part 42 is arranged at the opening of one end of the rectangular casing 41 close to the distributor 22. The stopping portion 42 is parallel to the bottom of the rectangular basket 41, and the non-fixed end is provided with a groove, and the width of the groove is larger than the diameter of the screw rod portion.
As shown in fig. 3, the workpiece positioning table 5 includes a stepped chuck having a circular base and mounted on the circular base, the stepped chuck being adapted to the inner hole of the workpiece. The circular base is driven to rotate by a rotating motor 8.
The control method of the present embodiment is different from the control method of embodiment 1 in that,
in step a2, screws are supplied simultaneously by two supply mechanisms; in the step A3 and the step B3, the operation mechanism simultaneously drives the two screw assembling and disassembling mechanisms to respectively reach the two screw positioning positions of the workpiece, and the two screws are assembled and disassembled simultaneously; after the screws are assembled and disassembled, the workpiece positioning table is controlled to rotate, and the next pair of screws are assembled and disassembled.
In the steps A3 and B3, when the workpiece is a regular gear and the threaded holes on the gear are uniformly positioned, the positioning distance between the two screw loading and unloading machines is the center distance of the two threaded holes which penetrate through the center connection of the gear; after the screws are assembled and disassembled, the gear is controlled to rotate by a preset angle, and the next screw is assembled and disassembled. It is understood that although the present embodiment is exemplified by a gear, other regular products are also applicable.
In step a3, a displacement sensor is provided in the screw mounting/dismounting mechanism to sense a positioning distance between the two screw mounting/dismounting mechanisms.
The automatic screw assembling and disassembling control method can realize automatic assembling and disassembling of screws, can assemble or disassemble a plurality of screws simultaneously, can operate continuously, and greatly improves the working efficiency of screw assembling and disassembling.
The same or similar reference numerals correspond to the same or similar parts; the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent. It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The automatic screw assembling and disassembling control method is characterized in that a screw feeding mechanism is arranged for feeding screws, a screw assembling and disassembling mechanism is arranged for assembling the screws obtained from the screw feeding mechanism into a workpiece and disassembling the screws on the workpiece, an operation mechanism is arranged for driving the screw assembling and disassembling mechanism to operate, and a workpiece positioning table is arranged for positioning the workpiece; a screw collecting device is arranged for collecting the disassembled screws;
the control method comprises the steps of screw loading control and screw unloading control;
the screw loading control method comprises the following steps:
A1. positioning a workpiece to be screwed on a workpiece positioning table;
A2. the screw feeding mechanism adopts a vibration mode to arrange the screws in sequence; positioning the currently required screws;
A3. the operation mechanism drives the screw loading and unloading mechanism to reach the screw positioning position, the positioned screw is taken out, the screw loading and unloading mechanism is positioned to the workpiece positioning table, the workpiece positioning table aligns the screw hole with the screw, and the screw loading and unloading mechanism locks the screw into the workpiece;
the screw unloading control method comprises the following steps:
B1. placing a workpiece to be unscrewed on a workpiece positioning table;
B2. the operation mechanism drives the screw loading and unloading mechanism to reach the workpiece positioning table;
B3. the workpiece positioning table positions the screw of the workpiece to a station of the screw loading and unloading mechanism, and the screw loading and unloading mechanism unloads the screw;
B4. the operation mechanism drives the screw loading and unloading mechanism to reach the screw collecting device, and the screws are unloaded; the screw loading and unloading mechanism is arranged on the feeding mechanism, the workpiece positioning table is arranged on one side of the feeding mechanism, and a screw collecting device is arranged between the workpiece positioning table and the feeding mechanism; the running mechanism comprises a guide rail and a driving device for driving the screw loading and unloading mechanism to move along the guide rail, the guide rail comprises a first guide rail, a second guide rail and a third guide rail which are vertical to each other, the driving device drives the screw loading and unloading mechanism to move up and down along the third guide rail, to reciprocate back and forth along the first guide rail and to reciprocate left and right along the second guide rail;
the feeding mechanism comprises a vibration disc, a feeding part and a distributor which are connected in sequence;
in the step A2, the vibration disc vibrates the screws to form a manner that the grabbing parts are upward, the feeding part is a long and narrow channel, the screws are arranged in a queue, and the distributor is provided with a groove for clamping one screw so as to realize the positioning of the current screw to be taken; the workpiece positioning table comprises a circular base, a stepped chuck arranged on the circular base and a driving mechanism for driving the stepped chuck to act; in the step A1 and the step B1, after the workpiece is placed in the circular base of the workpiece positioning table, the stepped chuck is driven to move to clamp the workpiece.
2. The method for controlling automatic loading and unloading of screws according to claim 1, wherein in step a3, it is determined whether the screw workpiece has been locked in place, and if not, an alarm is given.
3. The method for controlling automatic screw mounting/demounting of claim 2, wherein in step a3, a depth sensor is provided to sense the depth of screw mounting/demounting mechanism descent, so as to determine whether the screw mounting/demounting mechanism locks the screw in place.
4. The method for controlling automatic loading and unloading of screws according to claim 1, wherein in step B4, by providing a stop portion at the inlet of the screw collecting device, when the operating mechanism drives the screw loading and unloading mechanism to reach above the screw collecting device, the control screw is in continuous contact with the stop portion, and the screw is unloaded into the screw collecting device by the resistance of the stop portion.
5. The automatic screw loading and unloading control method according to any one of claims 1 to 4, wherein two feeding mechanisms and two screw loading and unloading mechanisms are provided, the two screw loading and unloading mechanisms are arranged in bilateral symmetry, and the two feeding mechanisms are arranged in bilateral symmetry;
in the step A2, screws are simultaneously supplied by two feeding mechanisms; in the step A3 and the step B3, the operation mechanism simultaneously drives the two screw assembling and disassembling mechanisms to respectively reach the two screw positioning positions of the workpiece, and the two screws are assembled and disassembled simultaneously; after the screws are assembled and disassembled, the workpiece positioning table is controlled to rotate, and the next pair of screws are assembled and disassembled.
6. The method of claim 5, wherein in steps A3 and B3, when the workpiece is a regular gear and the threaded holes on the gear are uniformly positioned, the positioning distance between two screw loaders is the center distance of two threaded holes connected through the center of the gear; after the screws are assembled and disassembled, the gear is controlled to rotate by a preset angle, and the next screw is assembled and disassembled.
7. The method of claim 6, wherein in step A3, the positioning distance between two screw mounting/dismounting mechanisms is sensed by providing a displacement sensor at the screw mounting/dismounting mechanism.
8. The automatic screw loading and unloading control method according to claim 7, wherein the first guide rail comprises a pair of guide rails arranged in bilateral symmetry, the second guide rail crosses over the first guide rail through a slide block, the third guide rail is a pair of guide rails, and the third guide rail is vertically arranged on the second guide rail through the slide block; the pair of screw loading and unloading mechanisms are respectively arranged on the third guide rail through sliding blocks; and the first guide rail, the second guide rail and the third guide rail are respectively provided with a position sensor for positioning the screw assembling and disassembling mechanism to reach the thread positioning part of the feeding mechanism and the assembling and disassembling station of the workpiece positioning table of the screw assembling and disassembling mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523486.1A CN109570979B (en) | 2018-12-13 | 2018-12-13 | Automatic screw assembling and disassembling control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523486.1A CN109570979B (en) | 2018-12-13 | 2018-12-13 | Automatic screw assembling and disassembling control method |
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| CN109570979A CN109570979A (en) | 2019-04-05 |
| CN109570979B true CN109570979B (en) | 2021-04-02 |
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| CN112156969A (en) * | 2020-09-11 | 2021-01-01 | 台州兆业机电有限公司 | Vibration device with good vibration effect and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5088372B2 (en) * | 2007-08-16 | 2012-12-05 | 富士通株式会社 | Screw tightening device |
| CN203751668U (en) * | 2014-03-10 | 2014-08-06 | 江苏省苏中建设集团股份有限公司 | Binding post screw screw-in and screw-out all-in-one machine |
| CN105414949A (en) * | 2016-01-22 | 2016-03-23 | 苏州鑫捷顺五金机电有限公司 | Screw machine capable of automatically assembling and disassembling |
| CN206029245U (en) * | 2016-08-25 | 2017-03-22 | 广东汇乐玩具实业有限公司 | Automatic biax lock screw machine |
| CN106563938A (en) * | 2016-10-27 | 2017-04-19 | 兴科电子科技有限公司 | Automatic screw mounting and dismounting machine for CNC clamp |
-
2018
- 2018-12-13 CN CN201811523486.1A patent/CN109570979B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5088372B2 (en) * | 2007-08-16 | 2012-12-05 | 富士通株式会社 | Screw tightening device |
| CN203751668U (en) * | 2014-03-10 | 2014-08-06 | 江苏省苏中建设集团股份有限公司 | Binding post screw screw-in and screw-out all-in-one machine |
| CN105414949A (en) * | 2016-01-22 | 2016-03-23 | 苏州鑫捷顺五金机电有限公司 | Screw machine capable of automatically assembling and disassembling |
| CN206029245U (en) * | 2016-08-25 | 2017-03-22 | 广东汇乐玩具实业有限公司 | Automatic biax lock screw machine |
| CN106563938A (en) * | 2016-10-27 | 2017-04-19 | 兴科电子科技有限公司 | Automatic screw mounting and dismounting machine for CNC clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109570979A (en) | 2019-04-05 |
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