Automatic positioning magnetic building block assembly device and method for improving magnetic sheet assembly accuracy

Abstract

The present invention relates to the technical field of building block assembly, specifically an automatic positioning magnetic building block assembly device and method for improving the assembly accuracy of magnetic chips, including: a machine table, and a lifting assembly arranged on the machine table. A fixing plate is fixed on the lifting assembly. A sliding sleeve is slidably installed at the bottom of the fixing plate, and a support plate is fixed on the sliding sleeve; a two-way positioning mechanism is arranged on the support plate. The two-way positioning mechanism includes symmetrically arranged positioning plates. The support plate can move when the two-way positioning mechanism drives the positioning plates to abut against the side walls of the building block installation grooves, and perform a central positioning action; a flexible clamping mechanism is arranged on the support plate. A magnetic adsorption rotation mechanism connected to the flexible clamping mechanism is arranged on the support plate. The magnetic adsorption rotation mechanism includes symmetrically arranged clamping plates. By providing an adsorption force or a driving force to the magnetic adsorption column through the magnetic adsorption rotation mechanism, it is possible to ensure that a positioning effect is provided to the magnetic adsorption column before assembly to ensure the assembly accuracy.

Description

Technical Field

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

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

[0003] In the production and assembly process of magnetic building blocks, magnets need to be accurately installed into the building block components to ensure magnetism, safety, and durability. The magnets can be fixed inside the building blocks in various ways, and common methods include bonding, embedded fixing, etc.

[0004] Regarding embedded fixing, the magnet needs to be inserted into the installation groove formed on the building block. If the magnet is directly embedded, since the magnetic pole direction is not determined, when two building blocks are adsorbed and spliced, they may not attract each other, but instead repel each other and move away from each other.

[0005] To address this, the above situation can be solved by a magnetic pole sensor cooperating with an automatic flipping device. The magnetic pole sensor can detect the magnetic pole direction. If the magnetic pole is correct, the assembly can be carried out. If the magnetic pole is incorrect, under the action of the automatic flipping device, the magnet is controlled to flip 180°, and then the assembly is carried out after its magnetic pole direction is correct. However, this method still requires detecting the magnetic pole direction first and then flipping. The executed flipping action depends on the driving and transmission of multiple mechanical components to complete. The inertia of multiple mechanical components will cause delays in driving and transmission, ultimately resulting in a slow response speed of the magnet flipping action and the need to improve the assembly efficiency. Summary of the Invention

[0006] The purpose 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 background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets, including: a machine table, and a lifting assembly provided on the machine table. A fixed plate is fixed on the lifting assembly, a sliding sleeve is slidably installed at the bottom of the fixed plate, and a support plate is fixed on the sliding sleeve; it further includes: a flexible clamping mechanism provided on the support plate, a connecting plate is connected to the flexible clamping mechanism; a magnetic adsorption and rotation mechanism is provided on the connecting plate and the support plate. The magnetic adsorption and rotation mechanism includes two clamping plates arranged symmetrically. The flexible clamping mechanism is used to adjust the distance between the two clamping plates through the connecting plate and the magnetic adsorption and rotation mechanism, and the magnetic adsorption and rotation mechanism can drive the clamping plates to perform a yaw positioning action according to the magnetic pole direction of the magnetic adsorption 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:

[0017] 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;

[0018] 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;

[0019] 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;

[0020] 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.

[0021] 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.

[0022] By applying electromagnetic force, corresponding suction or repulsive force can be provided to the magnetic attraction column according to the magnetic pole direction of the magnetic attraction column, so as to ensure that the magnetic pole direction of the magnetic attraction column is always in the required state during assembly. Since the positions where the magnetic attraction columns need to be assembled on the building blocks are different, the required magnetic pole directions may need to be converted. At this time, only by changing the direction of current flow in the coil through the power supply can the magnetic pole direction of the electromagnetic force be changed. The electromagnetic force only acts on a small number of components such as the magnetic attraction column and the clamping plate, and has a small inertia. Therefore, it can not only quickly switch the magnetic pole direction of the electromagnetic force, thus ensuring the high efficiency of the magnetic attraction column assembly, but also ensure the effective positioning of the magnetic attraction column subsequently, so as to ensure the accuracy of the magnetic attraction column assembly.

[0023] The locking force provided by the third spring to the rotating rod can not only lock the position of the clamping plate after the magnetic attraction column deflects to a specified position under the action of electromagnetic force, so as to prevent the problem that the deflection of the magnetic attraction column causes the reduction of assembly accuracy, but also control the magnetic attraction column to deflect to the required position regardless of the magnetic pole direction of the magnetic attraction column, and convert the rotation resistance into rotation assistance to assist the magnetic attraction column to flip a quarter of a circle to ensure the correct magnetic pole direction of the magnetic attraction column. Description of the Drawings

[0024] Figure 1 Structural schematic diagram of an embodiment of an automatic positioning type magnetic force building block assembly device for improving the assembly accuracy of magnetic sheets;

[0025] Figure 2 Structural schematic diagram of another angle in an embodiment of an automatic positioning type magnetic force building block assembly device for improving the assembly accuracy of magnetic sheets;

[0026] Figure 3 For Figure 2 Enlarged structural schematic diagram of part A in

[0027] Figure 4 Connection relationship schematic diagram of a two-way positioning mechanism, a flexible clamping mechanism, and a partial magnetic attraction rotation mechanism in an embodiment of an automatic positioning type magnetic force building block assembly device for improving the assembly accuracy of magnetic sheets;

[0028] Figure 5 Structural schematic diagram of a two-way positioning mechanism in an embodiment of an automatic positioning type magnetic force building block assembly device for improving the assembly accuracy of magnetic sheets;

[0029] Figure 6 Structural schematic diagram of a flexible clamping mechanism and a partial magnetic attraction rotation mechanism in an embodiment of an automatic positioning type magnetic force building block assembly device for improving the assembly accuracy of magnetic sheets;

[0030] Figure 7 Structural schematic diagram of a partial two-way positioning mechanism in an embodiment of an automatic positioning type magnetic force building block assembly device for improving the assembly accuracy of magnetic sheets;

[0031] 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;

[0032] Figure 9 A 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;

[0033] Figure 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.

[0034] 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

[0035] 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.

[0036] 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.

[0037] See also Figures 1 to 10, in the embodiment of the present invention, an automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets includes: a machine table 1, and a lifting assembly arranged on the machine table 1. A fixing plate 6 is fixed on the lifting assembly. A sliding sleeve 8 is slidably installed at the bottom of the fixing plate 6, and a support plate 9 is fixed on the sliding sleeve 8. Among them, the lifting assembly includes a motor 2 fixed on the machine table 1, a one-way lead screw 3 rotatably installed on the machine table 1 and connected to the output shaft of the motor 2. A first threaded sleeve 4 is threadedly connected to the one-way lead screw 3. A movable plate 5 slidably connected to the machine table 1 is fixed on the first threaded sleeve 4, and the movable plate 5 is fixedly connected to the fixing plate 6. It further includes: a two-way positioning mechanism arranged on the support plate 9. The two-way positioning mechanism includes symmetrically arranged positioning plates 21. The support plate 9 can act when the two-way positioning mechanism drives the positioning plates 21 to abut against the side wall of the building block installation groove and perform a central positioning action; a flexible clamping mechanism arranged on the support plate 9. A connecting plate 26 is connected to the flexible clamping mechanism; a magnetic attraction rotation mechanism arranged on the connecting plate 26 and the support plate 9. The magnetic attraction rotation mechanism includes two symmetrically arranged clamping plates 29. The flexible clamping mechanism is used to adjust the distance between the two clamping plates 29 through the magnetic attraction rotation mechanism, and the magnetic attraction rotation mechanism can drive the clamping plates 29 to perform a yaw positioning action according to the magnetic pole direction.

[0038] 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.

[0039] 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.

[0040] See also Figure 7, Specifically, a first guide rail 601 is fixed to the bottom of the fixing plate 6. 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 lead screw 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 towards 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, causing the positioning plate 21 to tend to move away from the cross plate 19, so that the first limiting ring 2001 is in contact with the cross plate 19; If the sizes of the building blocks are different, the sizes of the formed mounting grooves are also deviated. Therefore, it is necessary to center-position the support plate 9 according to the size of the mounting groove to ensure that the magnetic attraction column can smoothly enter the mounting groove. At this time, under the action of the first cylinder 18, the receiving plate 17 is controlled to move away from the second threaded sleeve 13, and the support rod 16 is controlled to move away from the support sleeve 15, thereby driving the two positioning plates 21 to move towards the mounting groove. When both positioning plates 21 enter the mounting groove, the bidirectional lead screw 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 effect, which can ensure that the second threaded sleeve 13 moves along the length direction of the bidirectional lead screw 12 and does not rotate with the bidirectional lead screw 12. The second threaded sleeve 13 also drives 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 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 side wall 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 receive a reaction force away from this side wall direction, causing the sliding sleeve 8 to slide along the length direction of the first guide rail 601. 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. 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.

[0041] Preferably, by controlling the mutual separation of the two positioning plates 21, the center positioning of the clamping plate 29 can be performed before assembling the magnetic attraction column, so as to ensure that the magnetic attraction column can be accurately assembled into the mounting groove when dealing with mounting grooves of different sizes. At the same time, by setting the first spring 22, when both positioning plates 21 are in contact with the side walls of the mounting groove, a certain elastic buffer force can be provided to avoid the problem that the force exerted by the positioning plate 21 on the side wall of the mounting groove is too large due to excessive rotation of the bidirectional lead screw 12, resulting in damage to the positioning plate 21 or the side wall of the mounting groove.

[0042] After positioning is completed, under the action of the first cylinder 18, the positioning plate 21 is controlled to move towards the second threaded sleeve 13, so that the positioning plate 21 disengages from the installation groove, to avoid interference between the positioning plate 21 and the magnetic attraction column during the installation of the magnetic attraction column, resulting in problems such as offset installation position or incomplete installation of the magnetic attraction column.

[0043] Please refer to Figures 1 - 4 , Figure 6 , Figure 9 , Figure 10 , the flexible clamping mechanism includes symmetrically arranged sliding grooves 901 formed on the support plate 9. A sliding block 23 is slidably installed in the sliding groove 901. A second cylinder 33 is fixed on the support plate 9. A connecting rod 34 for controlling the sliding block 23 to slide along the length direction of the sliding groove 901 is hinged on the second cylinder 33. The flexible clamping mechanism further 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 in abutting cooperation with the follower plate 24 is fixed on the second support column 25. A second spring 27 is sleeved on the second support column 25. Two ends of the second spring 27 are respectively abutted against the follower plate 24 and the connecting plate 26.

[0044] Please refer to Figure 6 , it should be noted that in the initial state, the second cylinder 33 controls the two sliding blocks 23 to be at the end of the stroke on one side of the sliding groove 901 through the connecting rod 34, so that the distance between the two sliding blocks 23 is the largest, so as to control the two clamping plates 29 to be at the end of the stroke in the direction of moving away from each other through the magnetic attraction rotating mechanism. The second spring 27 is in a compressed state, so that the second limiting ring 2501 is in abutting contact with the follower plate 24, so that the distance between the connecting plate 26 and the follower plate 24 is the largest; when it is necessary to clamp the magnetic attraction column, at this time, the second cylinder 33 works and controls the sliding block 23 to move along the length direction of the sliding groove 901 through the connecting rod 34, and the two sliding blocks 23 move towards each other, so that the distance between the two follower plates 24 is reduced. The follower plate 24 will control the connecting plate 26 to move synchronously through the second spring 27, so as to control the movement of the two clamping plates 29 through the magnetic attraction rotating mechanism; after the clamping plate 29 clamps the magnetic attraction 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 is further reduced and the second spring 27 is compressed, thereby increasing the clamping force of the clamping plate 29 on the magnetic attraction column.

[0045] Preferably, since the magnetic attraction column needs to be adapted to the corresponding installation groove, the size of the magnetic attraction column may change. By providing the second spring 27, a flexible clamping force can be provided to the clamping plate 29 to prevent the force exerted by the clamping plate 29 on the magnetic attraction column from being too large due to excessive movement of the second cylinder 33, resulting in deformation or damage of the clamping plate 29 or the magnetic attraction column.

[0046] Subsequently, after the clamping is completed, the magnetic attraction column is in a horizontal and transverse state. Under the action of the magnetic attraction rotation mechanism, the magnetic attraction column is controlled to yaw to the required position. Under the action of the lifting assembly, the support plate 9 can be controlled to move towards the installation groove direction, and the magnetic attraction column is gradually inserted into the installation groove through the clamping plate 29 to complete the assembly of the magnetic attraction column.

[0047] Please refer to Figures 1 - 4 、 Figure 6 、 Figure 9 、 Figure 10 , the magnetic attraction rotation mechanism includes a power supply 7 fixed on the fixed plate 6, an iron core 10 fixed on the support plate 9, and a coil 11 wound around the iron core 10 and connected to the power supply 7; it further includes a rotation assembly and a guiding assembly arranged on the connecting plate 26 for controlling the yaw and positioning actions of the clamping plate 29. The rotation assembly includes a rotating rod 28 rotatably installed on the connecting plate 26 for controlling the yaw of the clamping plate 29. A guiding column 30 is fixed on the connecting plate 26, and a resistance ring 31 slidably installed on the guiding column 30 and axially sliding along the rotating rod 28 is provided. A third spring 32 is sleeved on the rotating rod 28, and both ends of the third spring 32 are abutted against the connecting plate 26 and the resistance ring 31 respectively. The guiding assembly includes a guiding groove formed on the circumferential outer wall of the rotating rod 28, and a limiting block 3101 fixedly installed in the resistance ring 31 and slidably fitted with the guiding groove.

[0048] Please refer to Figure 9 、 Figure 10, further, the guiding groove can be divided into two parts. The first part is the arc grooves 2801 evenly distributed circumferentially, and the second part is the annular grooves 2802 evenly distributed circumferentially and connected to the ports of the arc grooves 2801. There are four sections of the arc grooves 2801 and the annular grooves 2802 respectively. 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 towards the clamping plate 29 and has a tendency to move towards the clamping plate 29, so that the limiting 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 limiting block 3101 and the arc groove 2801, the rotating rod 28 has a certain locking force to ensure that the clamping plate 29 will not swing; when it is necessary to clamp the magnetic attraction column, under the action of the flexible clamping mechanism, the two connecting plates 26 are controlled to move towards each other, so that the distance between the two clamping plates 29 is gradually reduced through the rotating rod 28. When the clamping plate 29 clamps the magnetic attraction column, the magnetic attraction column is horizontally placed and clamped between the two clamping plates 29. In order to ensure the accuracy of the assembly, it is necessary to limit the magnetic pole direction of the magnetic attraction column. At this time, the power supply 7 can supply 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 force will be generated, and the magnetic pole direction of this magnetic force is opposite to the magnetic pole direction of the end of the magnetic attraction column away from the installation groove. Therefore, under the action of the electromagnetic force, one end of the magnetic attraction column is subjected to suction force, and the other end is necessarily subjected to repulsive force; under the action of the suction force and the repulsive force, the clamping plate 29 is driven to move, so that the rotating rod 28 rotates against the locking force provided by the third spring 32. At this time, the limiting block 3101 will slide along the arc groove 2801 relative to the rotating rod 28, and the resistance ring 31 is controlled to move along the length direction of the guiding column 30 and move away from the clamping plate 29 to compress the third spring 32. When the limiting block 3101 disengages from this arc groove 2801 and enters the annular groove 2802, the third spring 32 always provides rotational resistance to the rotating rod 28. When the limiting block 3101 disengages from the annular groove 2802 and enters the adjacent arc groove 2801, the third spring 32 elastically releases and drives the resistance ring 31 to move towards the clamping plate 29. At this time, the third spring 32 provides rotational assistance to the rotating rod 28 until the limiting block 3101 moves to the most protruding end of this arc groove 2801, and the rotating rod 28 just rotates a quarter of a circle. 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 attraction column is adjusted to the required assembly direction.

[0049] Preferably, the locking force provided by the third spring 32 to the rotating rod 28 can not only lock the position of the clamping plate 29 after the magnetic attraction column is deflected to a specified position under the action of electromagnetic force, so as to prevent the problem of reduced assembly accuracy caused by the deflection of the magnetic attraction column, but also control the magnetic attraction column to deflect to the required position regardless of the magnetic pole direction of the magnetic attraction column, and convert the rotation resistance into rotation assistance to assist the magnetic attraction column to flip a quarter of a circle to ensure the correct magnetic pole direction of the magnetic attraction column.

[0050] By applying electromagnetic force, corresponding suction or repulsive force can be provided to the magnetic attraction column according to the magnetic pole direction of the magnetic attraction column to ensure that the magnetic pole direction of the magnetic attraction column is always in the required state during assembly. Since the positions where the magnetic attraction columns need to be assembled on the building blocks are different, the required magnetic pole directions may need to be converted. At this time, only by changing the direction of the current flowing in the coil 11 through the power supply 7 can the magnetic pole direction of the electromagnetic force be changed, which can not only quickly switch the magnetic pole direction of the electromagnetic force, thereby ensuring the high efficiency of the magnetic attraction column assembly, but also ensure the effective positioning of the magnetic attraction column subsequently to ensure the accuracy of the magnetic attraction column assembly.

[0051] An automatic positioning type magnetic force building block assembly method for improving the assembly accuracy of magnetic sheets, comprising the following steps:

[0052] Step 1: Control the fixed plate 6 to move in the vertical direction through the lifting assembly, and control the positioning plate 21 to move towards the building block installation groove.

[0053] Step 2: Under the action of the two-way positioning mechanism, control the two positioning plates 21 to move away from each other. When the positioning plate 21 abuts against the side wall of the installation groove, control the support plate 9 to perform a positioning action.

[0054] Step 3: At this time, under the action of the flexible clamping mechanism, control the two clamping plates 29 to move towards each other through the magnetic attraction rotation mechanism to perform a clamping action on the magnetic force column.

[0055] Step 4: At the same time, under the action of the magnetic attraction rotation mechanism, control the clamping plate 29 to perform a deflection positioning action according to the magnetic pole direction of the magnetic attraction column, so that the magnetic attraction column can be successfully installed.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0057] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments 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 The clamping plate is driven to perform a yaw and swing positioning action according to the magnetic pole direction of the magnetic column; 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; the magnetic rotation mechanism includes a power supply fixed on the fixed plate, an iron core is fixed on the support plate, and a coil connected to the power supply is wound on the iron core; it also includes a device arranged on the connecting plate for controlling the clamping plate to perform yaw and swing and positioning The rotatable assembly and guide assembly of the action; the rotatable assembly includes a rotatable rod rotatably mounted on the connecting plate for controlling the deflection of the clamping plate, a guide column is fixed on the connecting plate, a resistance ring that slides along the axial direction of the rotatable rod is slidably mounted on the guide column, a third spring is sleeved on the rotatable rod, and the two ends of the third spring are respectively in contact with the connecting plate and the resistance ring; the guide assembly includes a guide groove formed on the circumferential outer wall of the rotatable rod, and a limit block that is slidably engaged with the guide groove is fixed in the resistance ring; the support plate is also provided with a bidirectional positioning mechanism, and the bidirectional positioning mechanism A symmetrically arranged positioning plate is connected to the support structure, and the support plate can move when the bidirectional 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 bidirectional positioning mechanism includes a second guide rail fixed to the support plate, and a bidirectional screw rod is rotatably installed on the support plate, and a symmetrically arranged second threaded sleeve is threadedly connected to the bidirectional 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.

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 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.

3. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 1, 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.

4. The automatic positioning magnetic building block assembly device for improving the assembly accuracy of magnetic sheets according to claim 3, 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.

5. 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 4, 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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