Automatic positioning type magnetic building block assembling device and method for improving magnetic sheet assembling precision

Abstract

The invention relates to the technical field of building block assembling, in particular to an automatic positioning type magnetic building block assembling device and method for improving magnetic sheet assembling precision. The automatic positioning type magnetic building block assembling device comprises a machine table and a lifting assembly arranged on the machine table, a fixing plate is fixed to the lifting assembly, a sliding sleeve is slidably installed at the bottom of the fixing plate, and a supporting plate is fixed to the sliding sleeve; the bidirectional positioning mechanism is arranged on the supporting plate, the bidirectional positioning mechanism comprises positioning plates which are symmetrically arranged, and the supporting plate can move when the bidirectional positioning mechanism drives the positioning plates to abut against the side wall of the building block mounting groove and execute center positioning action; the flexible clamping mechanism is arranged on the supporting plate, a magnetic attraction rotating mechanism connected with the flexible clamping mechanism is arranged on the supporting plate and comprises clamping plates which are symmetrically arranged, and the magnetic attraction rotating mechanism provides adsorption force or pushing force for the magnetic attraction column, so that it can be ensured that the magnetic attraction column is positioned before assembly; and the assembly precision is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of building block assembly, and in particular to an automatic positioning magnetic building block assembly device and method for improving the assembly accuracy of magnetic sheets. Background Art

[0002] Magnetic building blocks are educational toys that achieve adsorption and splicing through built-in magnets. They mainly achieve flat or three-dimensional splicing through magnetic adsorption and are suitable for building geometric figures, architectural models, etc.

[0003] The production and assembly process of magnetic building blocks requires that magnets be precisely installed into the building block components to ensure magnetism, safety and durability. Magnets can be fixed inside the building blocks in a variety of ways, the most common of which are bonding, embedded fixation, etc.

[0004] As for embedded fixation, the magnet needs to be inserted into the mounting groove formed on the building block. If the magnet is directly embedded, since the direction of the magnetic pole is not determined, it may happen that when the two building blocks are adsorbed and spliced, they do not attract each other, but instead repel each other and move away from each other.

[0005] In this regard, the above situation can be solved by using a magnetic pole sensor in conjunction with an automatic flipping device. The magnetic pole sensor can detect the direction of the magnetic pole. If the magnetic pole is correct, assembly can be carried out. If the magnetic pole is wrong, the automatic flipping device controls the magnet to flip 180° so that the magnetic pole direction is correct before assembly. However, this method still requires the magnetic pole direction to be detected before flipping. The flipping action performed depends on the drive and transmission of multiple mechanical components. The inertia of multiple mechanical components will cause delays in the drive and transmission, which ultimately leads to a slow response speed of the magnet flipping action and assembly efficiency needs to be improved. Summary of the invention

[0006] The object of the present invention is to provide an automatic positioning magnetic building block assembly device and method for improving the assembly accuracy of magnetic sheets, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets, comprising: a machine platform, and a lifting component arranged on the machine platform, a fixed plate is fixed on the lifting component, a sliding sleeve is slidably installed on the bottom of the fixed plate, and a support plate is fixed on the sliding sleeve; it also includes: a flexible clamping mechanism, which is arranged on the support plate, and a connecting plate is connected to the flexible clamping mechanism; a magnetic rotation mechanism, which is arranged on the connecting plate and the support plate, and the magnetic rotation mechanism includes two clamping plates arranged symmetrically, and the flexible clamping mechanism is used to adjust the distance between the two clamping plates through the connecting plate and the magnetic rotation mechanism, and the magnetic rotation mechanism can drive the clamping plate to perform a yaw positioning action according to the magnetic pole direction of the magnetic column.

[0008] As a further solution of the present invention: the flexible clamping mechanism includes a slide groove formed on the support plate and symmetrically arranged, a sliding block is slidably installed in the slide groove, a second cylinder is fixed on the support plate, and a connecting rod is hinged on the second cylinder for controlling the sliding block to slide along the length direction of the slide groove.

[0009] As a further solution of the present invention: the flexible clamping mechanism also includes a follower plate fixed on the sliding block, a second support column fixedly connected to the connecting plate is slidably mounted on the follower plate, a second limiting ring that abuts against the follower plate is fixed on the second support column, a second spring is sleeved on the second support column, and both ends of the second spring are respectively abutted against the follower plate and the connecting plate.

[0010] As a further solution of the present invention: the magnetic rotation mechanism includes a power supply fixed on the fixed plate, an iron core fixed on the support plate, and a coil connected to the power supply is wound on the iron core; it also includes a rotating component and a guiding component arranged on the connecting plate for controlling the clamping plate to perform yaw and positioning actions.

[0011] As a further solution of the present invention: the rotating assembly includes a rotating rod rotatably mounted on the connecting plate and used to control the deflection of the clamping plate, a guide column is fixed on the connecting plate, a resistance ring is slidably mounted on the guide column and slides axially along the rotating rod, a third spring is sleeved on the rotating rod, and both ends of the third spring are respectively abutted against the connecting plate and the resistance ring.

[0012] As a further solution of the present invention: the guide assembly includes a guide groove formed on the circumferential outer wall of the rotating rod, and a limit block is fixed in the resistance ring and is slidably engaged with the guide groove.

[0013] As a further solution of the present invention: the support plate is also provided with a two-way positioning mechanism, and a symmetrically arranged positioning plate is connected to the two-way positioning mechanism, and the support plate can move when the two-way positioning mechanism drives the positioning plate to abut against the side wall of the building block installation groove, and perform a center positioning action; the two-way positioning mechanism includes a second guide rail fixed to the support plate, and a two-way screw rod is rotatably installed on the support plate, and a symmetrically arranged second threaded sleeve is threadedly connected to the two-way screw rod, and a guide block sliding along the length direction of the second guide rail is fixed to the side wall of the second threaded sleeve; it also includes an adjustment component and an elastic component arranged on the second threaded sleeve for adjusting the height and spacing of the positioning plate.

[0014] As a further solution of the present invention: the adjustment assembly includes a support sleeve and a first cylinder fixed on the second threaded sleeve, a support rod is slidably installed in the support sleeve, a receiving plate is fixed at the end of the support rod, and the telescopic end of the first cylinder is fixedly connected to the receiving plate.

[0015] As a further solution of the present invention: the elastic component includes a horizontal plate fixed on the supporting plate, a first support column is slidably installed on the horizontal plate, the first support column is fixedly connected to the positioning plate, a first limiting ring that cooperates with the horizontal plate is fixed on the first support column, a first spring is sleeved on the first support column, and both ends of the first spring are respectively in contact with the positioning plate and the horizontal plate.

[0016] An automatic positioning magnetic building block assembly method for improving magnetic sheet assembly accuracy comprises the following steps: Step 1: Control the fixing plate to move in the vertical direction through the lifting assembly, and control the positioning plate to move toward the direction of the building block installation slot; Step 2: Under the action of the bidirectional positioning mechanism, the two positioning plates are controlled to move in a direction away from each other, and when the positioning plates abut against the side walls of the installation groove, the support plate is controlled to perform a positioning action; Step 3: At this time, under the action of the flexible clamping mechanism, the two clamping plates are controlled to move toward each other through the magnetic rotation mechanism to perform a clamping action on the magnetic column; Step 4: At the same time, under the action of the magnetic rotation mechanism, according to the magnetic pole direction of the magnetic column, the clamping plate is controlled to perform the yaw positioning action, so that the magnetic column can be installed smoothly.

[0017] Compared with the prior art, the beneficial effect of the present invention is that the present application can automatically adjust the magnetic pole direction of the magnetic column through the magnetic rotation mechanism to ensure that when the magnetic column is assembled into the installation slot, the magnetic pole direction of the magnetic column is always in the required state. Specifically, when the bidirectional positioning mechanism moves, the two positioning plates can be controlled to abut against the side walls of the installation slot, thereby performing a positioning action on the support plate through the reaction force between the positioning plate and the side walls of the installation slot, so that the clamping plate is located at the center position of the installation slot to ensure that the magnetic column can be accurately inserted into the installation slot. At the same time, under the action of the flexible clamping mechanism, the clamping plate is controlled by the magnetic rotation mechanism to perform a clamping action on the magnetic column, and under the action of the magnetic rotation mechanism, according to the magnetic pole direction of the magnetic column, the clamping plate is controlled to perform a yaw positioning action to ensure that the magnetic pole direction of the magnetic column always remains correct when the magnetic column is installed.

[0018] By applying electromagnetic force, corresponding suction or repulsion can be provided to the magnetic column according to the direction of its magnetic pole, so as to ensure that the direction of its magnetic pole is always in the required state when the magnetic column is assembled. Since the position where the magnetic column needs to be assembled on the building blocks is different, the required direction of its magnetic pole may need to be converted. At this time, the direction of the magnetic pole of the electromagnetic force can be changed by simply changing the flow direction of the current in the coil through the power supply. The electromagnetic force only acts on a small number of components such as the magnetic column and the clamping plate, and has a small inertia. Therefore, it can realize the rapid switching of the magnetic pole direction of the electromagnetic force, thereby ensuring the high efficiency of the magnetic column assembly, and ensuring the subsequent effective positioning of the magnetic column to ensure the accuracy of the magnetic column assembly.

[0019] The locking force provided to the rotating rod by the third spring can not only lock the position of the clamping plate after the magnetic column is deflected to the specified position by the electromagnetic force, so as to prevent the problem of reduced assembly accuracy caused by the deflection of the magnetic column, but also can control the deflection of the magnetic column to the desired position regardless of the direction of the magnetic pole of the magnetic column, and convert the rotational resistance into rotational assistance to assist the magnetic column to flip a quarter turn, thereby ensuring that the magnetic pole direction of the magnetic column is correct. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Figure 2 A structural schematic diagram of another angle of the embodiment of the automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A; Figure 4 A schematic diagram of the connection relationship between the bidirectional positioning mechanism, the flexible clamping mechanism, and the partial magnetic attraction rotating mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Figure 5 A schematic diagram of the structure of a bidirectional positioning mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Figure 6 A schematic diagram of the structure of a flexible clamping mechanism and a partial magnetic attraction rotating mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Figure 7 A schematic diagram of the structure of a part of the bidirectional positioning mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Figure 8 An exploded structural diagram of a part of a bidirectional positioning mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Fig. 9A schematic diagram of the structure of a part of the flexible clamping mechanism and a part of the magnetic attraction rotating mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets; Fig.10 Schematic diagram of the exploded structure of part of the flexible clamping mechanism and part of the magnetic rotation mechanism in an embodiment of an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets.

[0021] In the figure: 1, machine table; 2, motor; 3, one-way screw; 4, first threaded sleeve; 5, movable plate; 6, fixed plate; 601, first guide rail; 7, power supply; 8, sliding sleeve; 9, support plate; 901, slide groove; 902, second guide rail; 10, iron core; 11, coil; 12, two-way screw; 13, second threaded sleeve; 14, guide block; 15, support sleeve; 16, support rod; 17, receiving plate; 18, first cylinder; 19, cross plate; 20 , the first support column; 2001, the first limit ring; 21, the positioning plate; 22, the first spring; 23, the sliding block; 24, the follower plate; 25, the second support column; 2501, the second limit ring; 26, the connecting plate; 27, the second spring; 28, the rotating rod; 2801, the arc groove; 2802, the annular groove; 29, the clamping plate; 30, the guide column; 31, the resistance ring; 3101, the limit block; 32, the third spring; 33, the second cylinder; 34, the connecting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0024] See also Figure 1 to Figure 10In an embodiment of the present invention, an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets comprises: a machine platform 1, and a lifting assembly arranged on the machine platform 1, a fixed plate 6 is fixed on the lifting assembly, a sliding sleeve 8 is slidably installed at the bottom of the fixed plate 6, and a support plate 9 is fixed on the sliding sleeve 8; wherein, the lifting assembly comprises a motor 2 fixed on the machine platform 1, a one-way screw rod 3 connected to the output shaft of the motor 2 is rotatably installed on the machine platform 1, a first threaded sleeve 4 is threadedly connected to the one-way screw rod 3, a movable plate 5 slidably connected to the machine platform 1 is fixed on the first threaded sleeve 4, and the movable plate 5 is fixedly connected to the fixed plate 6; and further comprises: a bidirectional positioning mechanism, Arranged on the support plate 9, the bidirectional positioning mechanism includes a symmetrically arranged positioning plate 21, and the support plate 9 can move when the bidirectional positioning mechanism drives the positioning plate 21 to abut against the side wall of the building block installation groove, and perform a center positioning action; a flexible clamping mechanism, arranged on the support plate 9, and a connecting plate 26 is connected to the flexible clamping mechanism; a magnetic rotation mechanism, arranged on the connecting plate 26 and the support plate 9, and the magnetic rotation mechanism includes two symmetrically arranged clamping plates 29, and the flexible clamping mechanism is used to adjust the distance between the two clamping plates 29 through the magnetic rotation mechanism, and the magnetic rotation mechanism can drive the clamping plate 29 to perform a yaw positioning action according to the direction of the magnetic pole.

[0025] Specifically, in order to ensure that the building blocks can be smoothly magnetically connected, it is necessary to ensure that the magnetic pole direction of the magnetic column is accurately inserted into the corresponding building block installation groove. Therefore, under the action of the two-way positioning mechanism, the two positioning plates 21 are driven to move toward the installation groove, and when the two positioning plates 21 enter the installation groove, the two-way positioning mechanism controls the two positioning plates 21 to move in the direction away from each other. When the positioning plates 21 abut against the side walls of the installation groove, under the action of the positioning plates 21 and the two-way positioning mechanism, the support plate 9 is controlled to move in the horizontal direction, so as to control the clamping plate 29 to move to the center position of the installation groove through the flexible clamping mechanism and the magnetic rotation mechanism, to ensure that the magnetic column can accurately enter the installation groove when assembled. When the magnetic column is positioned, under the action of the two-way positioning mechanism, the positioning plate 21 is controlled to disengage from the installation groove, and the two positioning plates 21 are controlled to return to the center position of the installation groove. Position, at this time, the magnetic column can be transported between the two clamping plates 29 by a manipulator or a loading tray, and under the action of the flexible clamping mechanism, the two clamping plates 29 are controlled to move in a direction close to each other by the magnetic rotation mechanism to flexibly clamp the magnetic column. When the clamping is completed, under the action of the magnetic rotation mechanism, the clamping plate 29 can be controlled to perform a sway positioning action according to the magnetic pole direction of the magnetic column. If the magnetic pole direction of the magnetic column is accurate, under the action of the magnetic rotation mechanism, the clamping plate 29 will not sway. If the magnetic pole direction of the magnetic column is opposite, under the action of the magnetic rotation mechanism, the clamping plate 29 will sway, so that the magnetic pole direction of the magnetic column is flipped to ensure the magnetic pole accuracy during the assembly of the magnetic column. Under the action of the lifting assembly, the fixed plate 6 is controlled to move toward the direction of the installation slot to control the magnetic column to be assembled into the installation slot.

[0026] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8The bidirectional positioning mechanism includes a second guide rail 902 fixed on the support plate 9, a bidirectional screw rod 12 is rotatably mounted on the support plate 9, a second threaded sleeve 13 symmetrically arranged is threadedly connected to the bidirectional screw rod 12, and a guide block 14 sliding along the length direction of the second guide rail 902 is fixed to the side wall of the second threaded sleeve 13; and also includes an adjustment component and an elastic component arranged on the second threaded sleeve 13 for adjusting the height and spacing of the positioning plate 21, the adjustment component includes a support sleeve 15 and a first cylinder 18 fixed on the second threaded sleeve 13, and the support sleeve 15 is provided with a first cylinder 18. A support rod 16 is slidably installed, and a receiving plate 17 is fixed at the end of the support rod 16. The telescopic end of the first cylinder 18 is fixedly connected to the receiving plate 17. The elastic component includes a transverse plate 19 fixed on the receiving plate 17. A first support column 20 is slidably installed on the transverse plate 19. The first support column 20 is fixedly connected to the positioning plate 21. A first limiting ring 2001 that abuts against the transverse plate 19 is fixed on the first support column 20. A first spring 22 is sleeved on the first support column 20, and the two ends of the first spring 22 abut against the positioning plate 21 and the transverse plate 19 respectively.

[0027] See also Figure 7In detail, a first guide rail 601 is fixed to the bottom of the fixed plate 6, and the sliding sleeve 8 can slide along the length direction of the first guide rail 601. In the initial state, under the action of the bidirectional screw rod 12, the distance between the two second threaded sleeves 13 is minimized, so that the distance between the two positioning plates 21 is minimized. Under the action of the first cylinder 18, the receiving plate 17 is located at the end of the stroke in the direction of the second threaded sleeve 13, so that the positioning plate 21 is in a contracted state, and the first spring 22 is in a compressed state, so that the positioning plate 21 has a tendency to move in the direction away from the cross plate 19, so that the first limit ring 2001 is in abutment with the cross plate 19; if the sizes of the building blocks are different, the sizes of the installation grooves formed thereon are also deviated. Therefore, it is necessary to center the support plate 9 according to the size of the installation groove to ensure that the magnetic suction column can smoothly enter the installation groove. At this time, the first cylinder 18 Under the action of, the receiving plate 17 is controlled to move in the direction away from the second threaded sleeve 13, and the support rod 16 is controlled to move in the direction away from the support sleeve 15, thereby driving the two positioning plates 21 to move in the direction of the installation groove. When the two positioning plates 21 enter the installation groove, the bidirectional screw rod 12 rotates, driving the two second threaded sleeves 13 to move, and controlling the guide block 14 to move along the length direction of the second guide rail 902. The guide block 14 and the second guide rail 902 have a guiding function, which can ensure that the second threaded sleeve 13 moves along the length direction of the bidirectional screw rod 12 and will not rotate with the bidirectional screw rod 12. The second threaded sleeve 13 will also drive the support sleeve 15 and the support rod 16 to move, thereby driving the cross plate 19 to move through the receiving plate 17. Under the action of the first spring 22, the two positioning plates 21 are controlled to move in the direction away from each other through the first support column 20; please refer to Figure 5 Subsequently, when one of the positioning plates 21 moves to abut against one of the side walls of the mounting groove, since the first spring 22 is in a compressed state, the distance between this positioning plate 21 and the cross plate 19 will not change. Therefore, the support plate 9 will be subjected to a reaction force in the direction away from the side wall, so that the sliding sleeve 8 slides along the length direction of the first guide rail 601, and the distance between the other positioning plate 21 and the other side wall of the mounting groove gradually decreases, until the other positioning plate 21 also moves to abut against the side wall of the mounting groove, and the center point of the support plate 9 is located at the center position of the mounting groove, thereby realizing the center positioning of the clamping plate 29.

[0028] Preferably, by controlling the two positioning plates 21 to move away from each other, the clamping plate 29 can be centrally positioned before assembling the magnetic column, so as to ensure that the magnetic column is accurately assembled into the installation slot when dealing with installation slots of different sizes. At the same time, by providing the first spring 22, a certain elastic buffering force can be provided when both positioning plates 21 are in contact with the side walls of the installation slot, so as to avoid the problem that the positioning plate 21 acts on the side walls of the installation slot due to excessive force caused by excessive rotation of the bidirectional screw rod 12, thereby causing damage to the positioning plate 21 or the side walls of the installation slot.

[0029] When the positioning is completed, under the action of the first cylinder 18, the positioning plate 21 is controlled to move toward the second threaded sleeve 13, so that the positioning plate 21 is separated from the installation groove, so as to avoid interference between the positioning plate 21 and the magnetic column when the magnetic column is installed, resulting in the problem of the magnetic column installation position being offset or not being installed in place.

[0030] See also Figure 1-Figure 4 , Figure 6 , Fig. 9 , Fig.10 The flexible clamping mechanism includes a slide groove 901 formed on the support plate 9 and symmetrically arranged, a sliding block 23 is slidably installed in the slide groove 901, a second cylinder 33 is fixed on the support plate 9, and a connecting rod 34 for controlling the sliding block 23 to slide along the length direction of the slide groove 901 is hinged on the second cylinder 33, and the flexible clamping mechanism also includes a follower plate 24 fixed on the sliding block 23, a second support column 25 fixedly connected to the connecting plate 26 is slidably installed on the follower plate 24, a second limiting ring 2501 that contacts and cooperates with the follower plate 24 is fixed on the second support column 25, and a second spring 27 is sleeved on the second support column 25, and the two ends of the second spring 27 are respectively in contact with the follower plate 24 and the connecting plate 26.

[0031] See also Figure 6 It should be noted that, in the initial state, the second cylinder 33 controls the two sliding blocks 23 to be located at the end of the stroke on one side of the slide groove 901 through the connecting rod 34, so that the distance between the two sliding blocks 23 is maximized, so that the two clamping plates 29 are controlled to be located at the end of the stroke in the direction away from each other through the magnetic rotation mechanism, and the second spring 27 is in a compressed state, so that the second limit ring 2501 and the follower plate 24 are in abutment state, so that the distance between the connecting plate 26 and the follower plate 24 is maximized; when the magnetic column needs to be clamped, at this time, the second cylinder 33 works and controls the sliding blocks 23 through the connecting rod 34 The moving block 23 moves along the length direction of the slide groove 901, and the two sliding blocks 23 move in the direction of approaching each other, so that the distance between the two follower plates 24 is reduced, and the follower plate 24 will control the synchronous movement of the connecting plate 26 through the second spring 27, thereby controlling the movement of the two clamping plates 29 through the magnetic rotation mechanism; when the clamping plate 29 clamps the magnetic column, the position of the clamping plate 29 no longer changes. At this time, the second cylinder 33 can continue to move, so that the distance between the follower plates 24 continues to decrease, and compress the second spring 27, thereby increasing the clamping force of the clamping plate 29 on the magnetic column.

[0032] Preferably, since the magnetic column needs to adapt to the corresponding installation slot, the size of the magnetic column may change. The second spring 27 can provide a flexible clamping force for the clamping plate 29 to prevent the clamping plate 29 from exerting excessive force on the magnetic column due to excessive movement of the second cylinder 33, thereby preventing the clamping plate 29 or the magnetic column from being deformed or damaged.

[0033] Subsequently, when the clamping is completed, the magnetic column is in a horizontal state. Under the action of the magnetic rotation mechanism, the magnetic column is controlled to swing to the desired position. Under the action of the lifting assembly, the support plate 9 can be controlled to move toward the installation slot, and the magnetic column is controlled to be gradually inserted into the installation slot through the clamping plate 29 to complete the assembly of the magnetic column.

[0034] See also Figure 1-Figure 4 , Figure 6 , Fig. 9 , Fig.10 The magnetic rotation mechanism includes a power supply 7 fixed on the fixed plate 6, an iron core 10 is fixed on the support plate 9, and a coil 11 connected to the power supply 7 is wound on the iron core 10; it also includes a rotating component and a guide component arranged on the connecting plate 26 for controlling the clamping plate 29 to perform deflection and positioning actions, the rotating component includes a rotating rod 28 rotatably mounted on the connecting plate 26 for controlling the deflection of the clamping plate 29, a guide column 30 is fixed on the connecting plate 26, and a resistance ring 31 that slides axially along the rotating rod 28 is slidably mounted on the guide column 30, a third spring 32 is sleeved on the rotating rod 28, and the two ends of the third spring 32 are respectively abutted against the connecting plate 26 and the resistance ring 31, the guiding component includes a guide groove formed on the circumferential outer wall of the rotating rod 28, and a limit block 3101 that slides with the guide groove is fixed in the resistance ring 31.

[0035] See also Fig. 9 , Fig.10, further, the guide groove can be divided into two parts, the first part is the arc groove 2801 which is evenly distributed around the circumference, and the second part is the annular groove 2802 which is evenly distributed around the circumference and connected to the end of the arc groove 2801. The arc groove 2801 and the annular groove 2802 are respectively provided with four sections. In the initial state, the third spring 32 is in a compressed state, so that the resistance ring 31 is located at the end of the stroke toward the clamping plate 29, and has a tendency to move toward the clamping plate 29, so that the limit block 3101 is located at the most protruding end of the arc groove 2801. Under the thrust provided by the third spring 32, as well as the action of the limit block 3101 and the arc groove 2801, The rotating rod 28 has a certain locking force to ensure that the clamping plate 29 does not deflect. When the magnetic column needs to be clamped, the two connecting plates 26 are controlled to move towards each other under the action of the flexible clamping mechanism, so that the distance between the two clamping plates 29 is gradually reduced by the rotating rod 28. When the clamping plate 29 clamps the magnetic column, the magnetic column is in a horizontal state and is clamped between the two clamping plates 29. In order to ensure the accuracy of assembly, the magnetic pole direction of the magnetic column needs to be limited. At this time, the power supply 7 can provide current to the coil 11. According to the magnetic effect of the current, under the action of the coil 11 and the iron core 10, a magnetic field will be generated. A magnetic force is generated, and the direction of the magnetic pole of the magnetic force is opposite to the direction of the magnetic pole of the end of the magnetic column away from the installation groove. Therefore, under the action of the electromagnetic force, one end of the magnetic column is subjected to suction, and the other end is inevitably subjected to repulsion; under the action of suction and repulsion, the clamping plate 29 is driven to move, so that the rotating rod 28 overcomes the locking force provided by the third spring 32 and rotates. At this time, the limit block 3101 will slide along the arc groove 2801 relative to the rotating rod 28, and control the resistance ring 31 to move along the length direction of the guide column 30, and move in the direction away from the clamping plate 29 to compress the third spring 32. When the limit block 3101 is separated from the arc groove 280 1, and enters the annular groove 2802, the third spring 32 always provides rotation resistance to the rotating rod 28. When the limit block 3101 disengages from the annular groove 2802 and enters another adjacent arc groove 2801, the third spring 32 is elastically released and drives the resistance ring 31 to move toward the clamping plate 29. At this time, the third spring 32 provides rotation assistance to the rotating rod 28 until the limit block 3101 moves to the most protruding end of the arc groove 2801, and the rotating rod 28 just rotates a quarter of a turn. The third spring 32 provides a certain locking force to the rotating rod 28 again through the resistance ring 31, and the magnetic pole direction of the magnetic suction column is adjusted to the required assembly direction.

[0036] Preferably, the locking force provided to the rotating rod 28 by the third spring 32 can not only lock the position of the clamping plate 29 after the magnetic column is deflected to the specified position by the electromagnetic force, so as to prevent the magnetic column from deflecting and causing the assembly accuracy to be reduced, but also can control the magnetic column to deflect to the desired position regardless of the direction of the magnetic pole of the magnetic column, and convert the rotational resistance into rotational assistance to assist the magnetic column to flip a quarter turn, thereby ensuring that the magnetic pole direction of the magnetic column is correct.

[0037] By applying electromagnetic force, corresponding suction or repulsion can be provided to the magnetic pole according to the direction of its magnetic pole, so as to ensure that when the magnetic pole is assembled, its magnetic pole direction is always in the required state. Since the position where the magnetic pole needs to be assembled on the building block is different, the required magnetic pole direction may need to be converted. At this time, the magnetic pole direction of the electromagnetic force can be changed by simply changing the flow direction of the current in the coil 11 through the power supply 7. This can not only achieve rapid switching of the magnetic pole direction of the electromagnetic force, thereby ensuring the high efficiency of the magnetic pole assembly, but also ensure the subsequent effective positioning of the magnetic pole to ensure the accuracy of the magnetic pole assembly.

[0038] An automatic positioning magnetic building block assembly method for improving magnetic sheet assembly accuracy comprises the following steps: Step 1: Control the fixing plate 6 to move in the vertical direction through the lifting assembly, and control the positioning plate 21 to move toward the direction of the building block installation slot; Step 2: Under the action of the bidirectional positioning mechanism, the two positioning plates 21 are controlled to move in a direction away from each other, and when the positioning plates 21 abut against the side walls of the installation groove, the support plate 9 is controlled to perform a positioning action; Step 3: At this time, under the action of the flexible clamping mechanism, the two clamping plates 29 are controlled by the magnetic rotation mechanism to move toward each other so as to perform a clamping action on the magnetic column; Step 4: At the same time, under the action of the magnetic rotation mechanism, according to the magnetic pole direction of the magnetic column, the clamping plate 29 is controlled to perform the yaw positioning action, so that the magnetic column can be installed smoothly.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets, comprising: A machine platform, and a lifting component arranged on the machine platform, a fixed plate is fixed on the lifting component, a sliding sleeve is slidably installed on the bottom of the fixed plate, and a support plate is fixed on the sliding sleeve; it is characterized in that it also includes: a flexible clamping mechanism, which is arranged on the support plate, and a connecting plate is connected to the flexible clamping mechanism; a magnetic rotation mechanism, which is arranged on the connecting plate and the support plate, and the magnetic rotation mechanism includes two clamping plates arranged symmetrically, and the flexible clamping mechanism is used to adjust the distance between the two clamping plates through the connecting plate and the magnetic rotation mechanism, and the magnetic rotation mechanism can drive the clamping plate to perform a yaw positioning action according to the magnetic pole direction of the magnetic column.

2. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 1, characterized in that: The flexible clamping mechanism includes a slide groove formed on the support plate and symmetrically arranged, a sliding block is slidably installed in the slide groove, a second cylinder is fixed on the support plate, and a connecting rod is hinged on the second cylinder for controlling the sliding block to slide along the length direction of the slide groove.

3. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 2, characterized in that: The flexible clamping mechanism also includes a follower plate fixed on the sliding block, a second support column fixedly connected to the connecting plate is slidably mounted on the follower plate, a second limiting ring that abuts against the follower plate is fixed on the second support column, a second spring is sleeved on the second support column, and two ends of the second spring are respectively in contact with the follower plate and the connecting plate.

4. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 1, characterized in that: The magnetic rotation mechanism includes a power supply fixed on the fixed plate, an iron core fixed on the support plate, and a coil connected to the power supply wound on the iron core; it also includes a rotating component and a guiding component arranged on the connecting plate for controlling the clamping plate to perform yaw and positioning actions.

5. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 4, characterized in that: The rotating assembly includes a rotating rod rotatably mounted on the connecting plate for controlling the deflection of the clamping plate, a guide column is fixed to the connecting plate, a resistance ring is slidably mounted on the guide column and slides axially along the rotating rod, a third spring is sleeved on the rotating rod, and both ends of the third spring are respectively abutted against the connecting plate and the resistance ring.

6. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 5, characterized in that: The guide assembly comprises a guide groove formed on the circumferential outer wall of the rotating rod, and a limit block slidably engaged with the guide groove is fixed in the resistance ring.

7. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 1, characterized in that: The support plate is also provided with a two-way positioning mechanism, and a symmetrically arranged positioning plate is connected to the two-way positioning mechanism. The support plate can move when the two-way positioning mechanism drives the positioning plate to abut against the side wall of the building block installation groove, and perform a center positioning action; the two-way positioning mechanism includes a second guide rail fixed to the support plate, and a two-way screw rod is rotatably installed on the support plate, and a symmetrically arranged second threaded sleeve is threadedly connected to the two-way screw rod, and a guide block sliding along the length direction of the second guide rail is fixed to the side wall of the second threaded sleeve; it also includes an adjustment component and an elastic component arranged on the second threaded sleeve for adjusting the height and spacing of the positioning plates.

8. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 7, characterized in that: The adjustment assembly includes a support sleeve fixed on the second threaded sleeve and a first cylinder, a support rod is slidably installed in the support sleeve, a receiving plate is fixed to the end of the support rod, and the telescopic end of the first cylinder is fixedly connected to the receiving plate.

9. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 8, characterized in that: The elastic component includes a transverse plate fixed on the supporting plate, a first support column is slidably mounted on the transverse plate, the first support column is fixedly connected to the positioning plate, a first limiting ring that cooperates with the transverse plate is fixed on the first support column, a first spring is sleeved on the first support column, and two ends of the first spring are respectively in contact with the positioning plate and the transverse plate.

10. An automatic positioning magnetic building block assembly method for improving magnetic sheet assembly accuracy, using an automatic positioning magnetic building block assembly device for improving magnetic sheet assembly accuracy as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Control the fixing plate to move in the vertical direction through the lifting assembly, and control the positioning plate to move toward the direction of the building block installation slot; Step 2: Under the action of the bidirectional positioning mechanism, the two positioning plates are controlled to move in a direction away from each other, and when the positioning plates abut against the side walls of the installation groove, the support plate is controlled to perform a positioning action; Step 3: At this time, under the action of the flexible clamping mechanism, the two clamping plates are controlled to move toward each other through the magnetic rotation mechanism to perform a clamping action on the magnetic column; Step 4: At the same time, under the action of the magnetic rotation mechanism, according to the magnetic pole direction of the magnetic column, the clamping plate is controlled to perform the yaw positioning action, so that the magnetic column can be installed smoothly.

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