Rubik's Cube Cross Center Component Assembly Machine

Abstract

The Rubik's Cube cross center component assembly machine disclosed in the present invention comprises a first turntable, a second turntable, a conveying device, a first assembling device, a transferring device, a second assembling device and a third assembling device; the first assembling device assembles a spring onto a center block, and assembles a screw onto the center block by inserting the screw into the spring to form a first component; the transferring device takes the first component from the first turntable to the second turntable; the second assembling device is used for automatic loading of a cross connecting shaft, and presses the first component onto a connecting arm of the cross connecting shaft to form a second component whose center block can be telescoped and rotated relative to the connecting arm; the first conveying belt of the conveying device is used for conveying the second component from the second turntable to the third assembling device; the third assembling device presses the end cover onto the center block of the second component to form a cross center component; the second conveying belt of the conveying device is used for conveying and discharging the cross center component, and the whole machine has a simple structure and a reasonable layout, and has high assembly precision and high efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of Rubik's Cube assembly, in particular to a Rubik's Cube cross center component assembly machine for assembling a Rubik's Cube cross center component. Background Art

[0002] The Rubik's Cube is an educational toy that can achieve the splicing of specified face colors by rotating. It is usually made of plastic material. According to the different orders, it can be divided into two-order, three-order, four-order and multi-order Rubik's Cubes. Among them, the three-order Rubik's Cube is a cube, which is divided into the top layer, the middle layer and the bottom layer in each coordinate axis direction. Each layer can be rotated freely, and the position of the small cubes on the cube can be changed by rotating the layer. The main structure of the three-order Rubik's Cube generally includes a cross connecting shaft with 6 connecting arms perpendicular to each other, 6 center blocks rotatably connected to the 6 connecting arms of the cross connecting shaft, 12 edge blocks and 8 corner blocks that are rotatably connected to the center block. In the production process of the Rubik's Cube, it is usually necessary to merge and assemble the Rubik's Cube layer by layer, especially to assemble the center block on the cross connecting shaft to form a cross center assembly that plays a rotating support role. Among them, whether the assembly of the cross center assembly meets the assembly requirements is directly related to the assembly accuracy of the subsequent corner blocks and edge blocks, as well as whether the assembled Rubik's Cube is smooth and whether the entire structure is firm. However, the existing assembly of the cross center assembly still mostly uses manual work, which is inefficient and the assembly accuracy cannot be effectively guaranteed.

[0003] Therefore, there is an urgent need for a Rubik's Cube cross center component assembly machine that can realize automated operation, has a simple structure, high assembly precision and high efficiency to overcome the above problems. Summary of the invention

[0004] The object of the present invention is to provide a Rubik's Cube cross center component assembly machine which can realize automated assembly line operation, has a simple structure, and has high assembly precision and high efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention discloses a Rubik's Cube cross center component assembly machine, which includes a first turntable and a second turntable arranged in sequence, and a conveying device having a first conveyor belt and a second conveyor belt arranged in parallel and at intervals, a first assembling device arranged on the circumference of the first turntable, a transfer device arranged between the first turntable and the second turntable, a second assembling device arranged on the circumference of the second turntable, and a third assembling device arranged between the first conveyor belt and the second conveyor belt; the first assembling device is used for automatic loading of a center block, a spring and a screw, and assembles the spring on the center block, and also assembles the screw on the center block in a manner of being inserted into the spring. , to form a first component; the transfer device is used to take the first component from the first turntable to the second turntable; the second assembling device is used for automatic loading of the cross connecting shaft, and crimping the first component on the connecting arm of the cross connecting shaft to form a second component in which the center block can be telescopic and rotatable relative to the connecting arm; the first conveyor belt is used to transfer the second component from the second turntable to the third assembling device; the third assembling device is used for automatic loading of the end cover, and crimping the end cover on the center block of the second component to form a cross center component; the second conveyor belt is used for conveying the cross center component at the third assembling device for unloading.

[0006] Compared with the prior art, the Rubik's Cube cross center component assembly machine of the present invention includes a first assembly device arranged on the circumference of the first turntable, a second assembly device arranged on the circumference of the second turntable and a third assembly device arranged between the first conveyor belt and the second conveyor belt of the transmission device. The first assembly device can not only realize the automatic loading of the center block, spring and screw, but also automatically assemble the spring to the center block, so that the screw is assembled to the center block in the form of being inserted into the spring to form a first component; the second assembly device can not only realize the automatic loading of the cross connecting shaft, but also, with the cooperation of the transfer device, can telescopically and rotatably crimp the first component obtained from the first turntable to the connecting arm of the cross connecting shaft to form a second component; the second component is transmitted from the second turntable to the third assembly device via the first conveyor belt, the third assembly device can not only realize the automatic loading of the end cover, but also crimp the end cover to the center block of the second component to form a cross center component; the cross center component is then transmitted by the second conveyor belt for unloading. The Rubik's Cube cross center component assembly machine of the present invention is provided with double turntables and double conveyor belts, so that the layout of each workstation is reasonable and compact, the volume is effectively reduced, the overall structure is simple and the positioning is accurate, and the automated assembly line operation of the cross center component assembly can be realized, effectively improving the assembly efficiency and assembly accuracy.

[0007] Preferably, the output end of the first conveyor belt, the input end of the second conveyor belt and the third assembling device are arranged in a straight line, and the third assembling device is located at the center of the first conveyor belt and the second conveyor belt.

[0008] Preferably, the conveying device also includes a first transfer mechanism and a second transfer mechanism which are arranged in parallel and at intervals, the first transfer mechanism being erected between the input end of the first conveyor belt and the second turntable, and the second transfer mechanism being erected between the output end of the first conveyor belt and the input end of the second conveyor belt.

[0009] Preferably, the first assembling device includes a center block loading mechanism, a spring assembling mechanism, a screw assembling mechanism and a unloading mechanism which are arranged in sequence along the conveying direction of the first turntable, and a plurality of first jigs are evenly distributed on the first turntable. The center block loading mechanism is used to place the center block on the first jig, the spring assembling mechanism is used to insert the spring into the center block, the screw assembling mechanism is used to assemble the screws on the center block in a manner of passing through the spring to form the first component, and the unloading mechanism is used to transfer the first component from the first turntable to the transfer device.

[0010] Preferably, the screw assembly mechanism includes a screw vibration disk, a sleeve arranged along the Z-axis direction and a positioning piece arranged between the sleeve and the first turntable. The sleeve is mounted above the first turntable and is used to vertically insert the screw provided by the screw vibration disk into the center block. The positioning piece is provided with a through cavity matching the shape of the outer contour of the screw, which is used to further guide and position the screw passing through the sleeve.

[0011] Preferably, the transfer device includes a positioning jig arranged beside the first turntable, a transfer mechanism mounted above the positioning jig and the second turntable, and at least two transfer jaws connected to the output end of the transfer mechanism, the positioning jig is used to receive the first component transferred by the first assembly device, and the transfer mechanism is used to drive at least two of the transfer jaws to synchronously reciprocate in a straight line along the X-axis, Y-axis and Z-axis directions, and during the movement, at least two of the transfer jaws can be driven to move relative to each other to adjust the distance between them.

[0012] Preferably, the Rubik's Cube cross center component assembly machine of the present invention also includes a rotating device arranged between the transfer device and the second turntable, and the rotating device is used to drive the cross connecting shaft to rotate, so that the transfer device can connect the first component to the connecting arms on different end faces of the cross connecting shaft.

[0013] Preferably, the rotating device includes a base plate, a mounting seat slidably mounted on the base plate, a gear rack mechanism disposed on the back of the mounting seat, and a steering clamp installed on the front of the mounting seat and connected to the output end of the gear rack mechanism. The sliding of the mounting seat on the base plate can drive the steering clamp to make a linear reciprocating motion close to or away from the second turntable, so as to take and place the cross-connecting shaft on the second turntable. The gear rack mechanism can drive the steering clamp to drive the cross-connecting shaft to rotate 90° each time, so that the connecting arms on different end faces of the cross-connecting shaft are rotated to a vertical upward position in sequence.

[0014] Preferably, the second assembling device includes a cross-connecting shaft feeding mechanism and a pressing mechanism arranged in sequence along the conveying direction of the second turntable, and a plurality of second jigs are provided on the second turntable. The cross-connecting shaft feeding mechanism is used to transfer the cross-connecting shaft to the second jig, and the pressing mechanism is used to press the first component placed on the connecting arm of the cross-connecting shaft so that the screws in the first component are pressed into place to form a second component.

[0015] Preferably, the third assembly device includes an end cover vibration disk, a material receiving trough, a blocking member, a positioning groove and a crimping member. The material receiving trough is arranged in a direction perpendicular to the feeding direction of the end cover vibration disk, and a side end of the material receiving trough is provided with a material receiving port connected with a discharge port of the end cover vibration disk. The blocking member is movably arranged between the material receiving port and the discharge port to limit or allow the connection between the discharge port and the material receiving port. The positioning groove for fixing the second component is arranged at the end of the material receiving trough so that the end of the center block of the second component can be snapped into the port of the material receiving trough. The crimping member is movably arranged in the material receiving trough to push the end cover in the material receiving trough to be crimped with the end of the center block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the cross center component of the magic cube of the present invention.

[0017] Figure 2 It is a schematic diagram of the exploded structure of the cross center component of the magic cube of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the Rubik's Cube cross center component assembly machine of the present invention.

[0019] Figure 4 It is a planar structural schematic diagram of the Rubik's Cube cross center component assembly machine of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the first transfer mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the second transfer mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the planar structure of the first assembling device of the present invention.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the spring assembly mechanism of the present invention.

[0024] Fig. 9 It is a three-dimensional structural schematic diagram of the screw assembly mechanism of the present invention.

[0025] Fig.10 It is a schematic diagram of the planar structure of the transfer device of the present invention in one direction.

[0026] Fig.11 It is a schematic plan view of the structure of the transfer device of the present invention in another direction.

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the rotating device of the present invention.

[0028] Fig.13 It is a three-dimensional structural schematic diagram of the press-fitting mechanism of the present invention.

[0029] Fig.14 It is a schematic diagram of the three-dimensional structure of the third assembling device of the present invention. DETAILED DESCRIPTION

[0030] In order to explain the content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0031] See also Figures 1 to 4The present invention discloses a Rubik's Cube cross center component assembly machine 100, which is used to assemble the center block 200 of the Rubik's Cube to the connecting arm 501 of the cross connecting shaft 500 of the Rubik's Cube through a spring 300 and a screw 400, and to seal the port 201 of the center block 200 through an end cover 600, thereby forming a Rubik's Cube cross center component 700. Among them, in the present application, the spring 300 is retractably clamped in the through-groove 203 at the center of the center block 200 from one side of the center block 200 having the port 201 toward the direction of the connecting rod 202 on the other side of the center block 200. The through-groove 203 is a through groove that passes through the port 201 of the center block 200 and the connecting rod 202, and the diameter of the through-groove 203 at the port 201 is larger than its diameter at the connecting rod 202. The screw 400 is connected to the spring 300 in a direction that is telescopic. The screw 400 is inserted into the insertion groove 203 of the center block 200 in the above manner, and the rod 401 of the screw 400 passes through the connecting rod 202 and is engaged in the groove 5011 of the connecting arm 501 of the cross connecting shaft 500. The head 402 of the screw 400 is enclosed in the accommodating space defined by the end cover 600 and the port 201, so that the center block 200 can make a telescopic movement close to or away from the connecting arm 501 and a rotational movement relative to the connecting arm 501 by means of the screw 400 and the spring 300.

[0032] The Rubik's Cube cross center component assembly machine 100 provided in the preferred embodiment of the present invention includes a first turntable 10, a second turntable 20 and a conveying device 30 having a first conveyor belt 31 and a second conveyor belt 32 arranged in parallel and at intervals, which are arranged in sequence along the longitudinal direction of the machine platform 101, a first assembling device 40 arranged on the side of the first turntable 10, a transfer device 50 arranged between the first turntable 10 and the second turntable 20, a second assembling device 60 arranged on the side of the second turntable 20, and a third assembling device 70 arranged between the first conveyor belt 31 and the second conveyor belt 32. The first assembly device 40 is used for automatically loading the center block 200, the spring 300 and the screw 400, and assembles the spring 300 on the center block 200, and also assembles the screw 400 on the center block 200 by inserting it into the spring 300, so as to form a first component 701; the transfer device 50 is used for taking the first component 701 from the first turntable 10 to the second turntable 20; the second assembly device 60 is used for automatically loading the cross-connecting shaft 500, and with the cooperation of the transfer device 50, the first component 701 obtained from the first turntable 10 is crimped onto the second turntable 20. The cross connecting shaft 500 is connected to the connecting arm 501 to form a second component 702 that is retractable and rotatable relative to the cross connecting shaft 500; the first conveyor belt 31 is used to transport the second component 702 from the second turntable 20 to the third assembling device 70; the third assembling device 70 is used for automatic loading of the end cover 600, and crimping the end cover 600 to the port 201 of the center block 200 of the second component 702 to form a cross center component 700; the second conveyor belt 32 is used for transporting the cross center component 700 at the third assembling device 70 for unloading.

[0033] It should be noted that the Rubik's Cube Cross Center Component Assembly Machine 100 of the present invention is mainly used for assembling the corresponding center blocks 200 on the connecting arms 501 on a total of four end faces in two perpendicular directions of the cross connecting axis 500, while the assembly of the center blocks 200 on the connecting arms 501 on the other two end faces is completed in other equipment. Of course, the Rubik's Cube Cross Center Component Assembly Machine 100 of the present invention also includes a control system, which is electrically connected to the first turntable 10, the second turntable 20, the conveying device 30, the first assembly device 40, the transfer device 50, the second assembly device 60 and the third assembly device 70, and is used to control the coordinated actions between the devices. Among them, the control system is an existing design, and its structure and control principle are well known in the art, so it will not be described in detail here.

[0034] Combination Figure 3 , Figure 4 and Figure 7, a plurality of first jigs 11 are evenly distributed on the first turntable 10, and a positioning groove 111 matching the shape of the center block 200 is provided on the first jig 11, and the center block 200 is placed in the positioning groove 111 with its port 201 facing upward. A plurality of second jigs 21 are evenly distributed on the second turntable 20, and a clamping position 211 matching the shape of the cross connecting shaft 500 is provided on the second jig 21, and the cross connecting shaft 500 is plugged and fixed at the clamping position 211 through a connecting arm 501, so as to facilitate the corresponding assembly of the center block 200 on four connecting arms 501 perpendicular to the connecting arm 501. Specifically, in order to facilitate the positioning and transmission of the center block 200 and the cross connecting shaft 501, the bearing surface of the first turntable 10 is circular, and four first jigs 11 are evenly distributed along its circumference, and the bearing surface of the second turntable 20 is square, and a second jig 21 is provided at each position corresponding to the four sides. In order to improve the transmission efficiency, multiple center blocks 200 can be fixed on each first fixture 11, and the positioning groove 111 can preferably be a strip groove, the end of which is close to the center of the first turntable 10 is closed, and the end of which is close to the edge of the first turntable 10 is not closed, so that multiple center blocks 200 can be pushed into the positioning groove 111 one by one through the opening, and specifically, 6 center blocks 200 can be placed on each first fixture 11. Correspondingly, multiple cross-connecting shafts 500 can be fixed on each second fixture 21, and multiple clamping positions 211 arranged equidistantly are provided on the second fixture 21 along its longitudinal direction, and the number of clamping positions 211 is specifically 6.

[0035] See also Figures 3 to 6 The first conveyor belt 31 and the second conveyor belt 32 are both arranged in a straight line along the longitudinal direction of the machine 101. The conveying device 30 also includes a first transfer mechanism 33 and a second transfer mechanism 34 which are arranged in parallel and at intervals. The first transfer mechanism 33 is set between the input end 311 of the first conveyor belt 31 and the second turntable 20, and is used to pick up the first component 701 from the first turntable 10 and send it to the first conveyor belt 31 for transmission. The second transfer mechanism 34 is set between the output end 312 of the first conveyor belt 31 and the input end 321 of the second conveyor belt 32, and is used to pick up the second component 702 from the first conveyor belt 31 to the third assembly device 70, and is also used to pick up the cross center component 700 from the third assembly device 70 to the second conveyor belt 32 for transmission to discharge. The first transfer mechanism 33 and the second transfer mechanism 34 can move in a straight line for a short distance along the horizontal width direction of the machine 101 to achieve the corresponding pick-up and delivery operations. Preferably, the output end 312 of the first conveyor belt 31, the input end 321 of the second conveyor belt 32 and the third assembly device 70 are arranged in a straight line, and the third assembly device 70 is located at the center position of the output end 312 of the first conveyor belt 31 and the input end 321 of the second conveyor belt 32, thereby further reducing the moving stroke of the second transfer mechanism 34, optimizing the structure, and effectively improving the assembly efficiency.

[0036] See also Figure 5 In order to improve the assembly efficiency, in this embodiment, the first transfer mechanism 33 can transfer multiple second components 702 assembled on the second fixture 21 to the first conveyor belt 31 at one time. Among them, since the second components 702 assembled on the second turntable 20 are placed sideways, in order to facilitate the crimping operation of the third assembly device 70, the first transfer mechanism 33 can first rotate the second component 702 by 90° and then place it horizontally on the first conveyor belt 31. Specifically, the first transfer mechanism 33 includes a bracket 331 installed on the machine 101, a linear module 332 provided on the bracket 331, a rotary module 333 connected to the output end of the linear module 332, a pick-and-place driver 334 connected to the output end of the rotary module 333, and a pick-and-place clamp 335 connected to the output end of the pick-and-place driver 334. The linear module 332 can drive the pick-up and delivery clamp 335 to reciprocate linearly along the X-axis direction and the Z-axis direction to move back and forth between the second fixture 21 and the first conveyor belt 31, and during the movement, the rotating module 333 can drive the pick-up and delivery clamp 335 to rotate 90°, so that the pick-up and delivery clamp 335, driven by the pick-up and placement driver 334, can place the second component 702 placed sideways horizontally on the first conveyor belt 31.

[0037] More specifically, the linear module 332 includes a rodless cylinder 3321 that drives the pick-up and delivery clamp 335 to move linearly along the X-axis direction, and a slide cylinder 3322 that is connected to the output end of the rodless cylinder 3321 to drive the pick-up and delivery clamp 335 to move linearly along the Z-axis direction. The rotary module 333 includes a rotary driver 3331 and a rotating shaft 3332 connected to the output end of the rotary driver 3331. A plurality of pick-up and delivery drivers 334 are equidistantly connected to the rotating shaft 3332. The output end of each pick-up and delivery driver 334 is connected to a pick-up and delivery clamp 335. The spacing between the plurality of pick-up and delivery clamps 335 corresponds to the spacing between the clamping positions 211 on the second fixture 21. The first transfer mechanism 33 can realize the synchronous pick-up and delivery and steering operations of the plurality of second components 702, further improving the assembly efficiency. Among them, the pick-up and delivery clamp 335 is specifically a pneumatic clamp, and the pick-up and delivery driver 334 is a cylinder.

[0038] See also Figure 6In this embodiment, the second transfer mechanism 34 can realize the synchronous operation of picking up and delivering the second component 702 and the cross center component 700, thereby further improving the assembly efficiency. Specifically, the second transfer mechanism 34 includes a bracket 341, a linear module 342 arranged on the bracket 341, two pick-up and placement drivers 343 connected to the output end of the linear module 342, and two unloading clamps 344 connected to the two pick-up and placement drivers 343 in a one-to-one correspondence. The two unloading clamps 344 are arranged in parallel and spaced apart. The linear module 342 can drive the two unloading clamps 344 to reciprocate in a straight line along the Z-axis direction and the X-axis direction. The two unloading clamps 344 that move synchronously correspond to and reciprocate between the first conveyor belt 31 and the third assembly device 70 and between the third assembly device 70 and the second conveyor belt 32. Each time a cross center component 700 assembled by the third assembly device 70 is taken away, another second component 702 to be assembled is placed on the third assembly device 70. The linear module 342 includes a cylinder 3421 for driving the blanking clamp 344 to move linearly along the X-axis direction, a cylinder 3422 connected to the output end of the cylinder 3421 to drive the blanking clamp 344 to move linearly along the Z-axis direction, and the pick-and-place driver 343 is a cylinder.

[0039] See also Figure 4 , Figures 7 to 9 The first assembly device 40 includes a center block loading mechanism 41, a spring assembly mechanism 42, a screw assembly mechanism 43 and a blanking mechanism 44 arranged in sequence on the circumference of the first turntable 10 along the conveying direction of the first turntable 10. The center block loading mechanism 41 is used to place the center block 200 on the first fixture 11 with its port 201 facing upward, the spring assembly mechanism 42 is used to insert the spring 300 into the penetration groove 203 of the center block 200, the screw assembly mechanism 43 is used to assemble the screw 400 on the center block 200 in a manner of penetrating the spring 300 to form a first assembly 701, and the blanking mechanism 44 is used to transfer the first assembly 701 from the first turntable 10 to the transfer device 50. Among them, the center block loading mechanism 41, the spring assembly mechanism 42, the screw assembly mechanism 43 and the blanking mechanism 44 are arranged at intervals of 90° on the circumference of the first turntable 10.

[0040] Combination Figure 4 and Figure 7Specifically, in this embodiment, the central block feeding mechanism 41 includes a central block vibrating material disk 411 disposed beside the first turntable 10, a blocking member 412 disposed at the discharge port of the central block vibrating material disk 411, and a blocking driver 413 connected to the blocking member 412. The discharge port of the central block vibrating material disk 411 can be docked with the open end of the positioning groove 111 on the first fixture 11, so that the central blocks 200 can be pushed one by one into the positioning groove 111 of the first fixture 11. The blocking driver 413 can drive the blocking member 412 to make a linear motion close to or away from the discharge port of the central block vibrating material disk 411, so as to prevent or allow the discharge port of the central block vibrating material disk 411 to communicate with the positioning groove 111 of the first fixture 11. For example, when the positioning groove 111 is filled with 6 center blocks 200, the sensor arranged at the positioning groove 111 sends a signal to the control system. Under the instruction of the control system, the blocking driver 413 drives the blocking member 412 to move to the discharge port close to the center block vibrating material disk 411, thereby preventing the center block vibrating material disk 411 from conveying the center block 200.

[0041] Combination Figure 4 , Figure 7 and Figure 8 Specifically, in this embodiment, the spring assembly mechanism 42 includes a spring vibrating material disk 421 disposed beside the first rotating disk 10 and a sleeve 422 connected to the discharge port of the spring vibrating material disk 421. The spring 300 in the spring vibrating material disk 421 is accurately inserted into the through-groove 203 of the center block 200 on the first fixture 11 through the guide alignment of the sleeve 422. The sleeve 422 is mounted on the bracket 423 and arranged along the Z-axis direction, so that it can be aligned directly above the through-groove 203 of the center block 200. Specifically, the sleeve 422 can be arranged in a one-to-one correspondence with the center block 200 in the positioning groove 111. Of course, the number of the sleeve 422 and the center block 200 may also be inconsistent. In this embodiment, the spring assembly mechanism 42 also includes a positioning driver 424, and the two sleeves 422 are parallel and spaced apart and connected to the output end of the positioning driver 424. The spring vibrating material disk 421 conveys two springs 300 to the two sleeves 422 through the connecting pipe each time, so that the two center blocks 200 in the first fixture 11 that are opposite to the initial positions of the two sleeves 422 are first assembled with the springs 300. The two sleeves 422 are then driven by the positioning driver 424 to move linearly along the Y-axis direction relative to the first fixture 11, so that the other four springs 300 are correspondingly assembled on the remaining four center blocks 200 in the first fixture 11 in two times.

[0042] Combination Figure 4 , Figure 7 and Fig. 9Specifically, in this embodiment, the screw assembly mechanism 43 includes a screw vibrating material disk 431 disposed beside the first rotary disk 10, a sleeve 432 arranged along the Z-axis direction, and a positioning member 433 disposed between the sleeve 432 and the first rotary disk 10. The sleeve 432 is mounted above the first rotary disk 10 through a bracket 434, and is used to guide and position the screw 400 at the outlet of the screw vibrating material disk 431, so that it can be vertically inserted into the through-groove 203 of the center block 200 assembled with the spring 300. The positioning member 433 is mounted between the first rotary disk 10 and the sleeve 432 through a bracket 435, and is provided with a through-cavity 4331 matching the shape of the outer contour of the screw 400, so as to further guide and position the insertion of the screw 400 passing through the sleeve 432. Specifically, the sleeve 432 , the penetration cavity 4331 and the center block 200 in the positioning groove 111 may be arranged in a one-to-one correspondence. Of course, the numbers of the three may also be inconsistent. In this embodiment, the screw assembly mechanism 43 also includes a positioning driver 436, and the two sleeves 432 are parallel and spaced apart and connected to the output end of the positioning driver 436. The positioning member 433 is provided with six penetration cavities 4331 arranged along its longitudinal direction. The penetration cavities 4331 are arranged one-to-one with the center blocks 200. The screw vibration plate 431 conveys two screws 400 to the two sleeves 432 through the connecting pipe each time, so that the two center blocks 200 in the first fixture 11 that are opposite to the initial positions of the two sleeves 432 are first assembled with the screws 400. The two sleeves 432 are then driven by the positioning driver 436 to move linearly along the X-axis direction relative to the first fixture 11, so that the other four screws 400 are assembled to the remaining four center blocks 200 in the first fixture 11 in two times.

[0043] See also Figure 7 The unloading mechanism 44 includes a positioning fixture 441 disposed beside the first turntable 10, a pushing member 442 disposed beside the positioning fixture 441, and a pushing driver 443 connected to the pushing member 442. The positioning fixture 441 has a substantially same structure as the first fixture 11, and its open end can be butted against the open end of the first fixture 11. The pushing driver 443 can drive the pushing member 442 to move linearly along the Y-axis direction relative to the positioning fixture 441, thereby pushing the first components 701 assembled in the first fixture 11 into the positioning fixture 441 one by one, so that the transfer device 50 can pick up the material.

[0044] Combination Fig.10 and Fig.11The transfer device 50 includes a bracket 51 disposed beside the first turntable 10, a transfer mechanism 52 mounted above the first turntable 10 and the second turntable 20 through the bracket 51, and at least two transfer jaws 53 connected to the output end of the transfer mechanism 52. The transfer mechanism 52 is used to drive at least two transfer jaws 53 to synchronously reciprocate along the Y-axis and Z-axis directions to move back and forth between the positioning fixture 441 of the first assembly device 40 and the second turntable 20. Preferably, during the movement, the transfer mechanism 52 can also drive at least two transfer jaws 53 to make linear movements along the X-axis direction to adjust the distance between each other, so as to adjust the distance between the first components 701 to be picked up and delivered according to the arrangement of the clamping positions 211 on the second fixture 21, and efficiently realize the transfer operation with accurate alignment.

[0045] Specifically, in this embodiment, the transfer mechanism 52 includes a rodless cylinder 521 mounted on a bracket 51, a slide cylinder 522 connected to the output end of the rodless cylinder 521, a variable spacing driver 524 connected to the output end of the slide cylinder 522 through a connecting seat 523, a drive frame 525 slidably disposed at the upper end of the connecting seat 523 along the Z-axis direction and connected to the output end of the variable spacing driver 524, a retractable chain 526 pivotally connected to the drive frame 525, at least two adapter plates 527 slidably disposed at the lower end of the connecting seat 523 along the X-axis direction and connected to the retractable chain 526, at least two cylinders 528 connected one-to-one with the at least two adapter plates 527, and at least two transfer clamps 53 connected one-to-one with the output ends of the cylinders 528. Among them, the rodless cylinder 521 and the slide cylinder 522 are used to drive at least two transfer jaws 53 to move back and forth linearly along the Y-axis and Z-axis directions respectively, and the cylinder 528 is used to drive the transfer jaws 53 to clamp or release the first component 701. The retractable chain 526 includes at least two chain plates 5261 that are alternately arranged and pivoted in sequence at the front and rear opposite sides of the drive frame 525 along the longitudinal direction of the drive frame 525, and the at least two chain plates 5261 pivoted to each other can perform telescopic movements away from or approaching each other around the corresponding pivot points, and the at least two chain plates 5261 pivoted to each other are arranged in a "human" shape or a wave shape, that is, the number of corresponding chain plates 5261 is 2 or more than 2. The upper pivoting ends of at least two chain plates 5261 are slidably engaged in the driving frame 525 along the X-axis direction, and the lower pivoting ends of at least two chain plates 5261 are pivotally engaged with the upper ends of at least two adapter plates 527 below the driving frame 525 in a one-to-one correspondence, and the adapter plates 527 are slidably disposed on the linear guide rail of the connecting seat 523. The variable spacing driver 524 can drive the driving frame 525 to linearly reciprocate along the Z-axis direction on the connecting seat 523, so that at least two chain plates 5261 can perform telescopic movements away from or approaching each other along the X-axis direction under the action of the pressing force of the driving frame 525, thereby driving the correspondingly connected adapter plates 527 to slide on the connecting seat 523, so as to adjust the spacing between the adapter plates 527, and further adjust the spacing between the at least two transfer jaws 53. The number of the transfer jaws 53 is specifically 6.

[0046] Combination Figure 3 , Figure 4 and Fig.12In a preferred embodiment of the present invention, the Rubik's Cube Cross Center Component Assembly Machine 100 further includes a rotating device 80 disposed between the transfer device 50 and the second turntable 20, and the rotating device 80 is used to drive the cross-connection shaft 500 to rotate, so as to facilitate the assembly of the first component 701 on the connecting arms 501 at different end faces of the cross-connection shaft 500. Specifically, the rotating device 80 includes a bottom plate 81, a mounting seat 82 slidably disposed on the bottom plate 81, a gear rack mechanism 83 disposed on the back of the mounting seat 82, and a steering clamp 84 disposed on the front of the mounting seat 82 and connected to the output end of the gear rack mechanism 83. The mounting seat 82 can slide linearly along the Y-axis direction on the bottom plate 81 under the drive of the cylinder 85 connected thereto, thereby driving the steering clamp 84 to make a linear reciprocating motion close to or away from the second turntable 20, so as to pick and place the cross-connection shaft 500 on the second turntable 20. The gear rack mechanism 83 can drive the steering clamp 84 to drive the cross connecting shaft 500 to rotate 90° each time, so that the connecting arms 501 at different end surfaces of the cross connecting shaft 500 are rotated to a vertical upward position in sequence, thereby facilitating the crimping of the first component 701.

[0047] In order to improve efficiency, the number of steering clamps 84 is multiple, which can specifically correspond to the number and spacing of the clamping positions 211 provided on the second fixture 21. The multiple steering clamps 84 are connected to the output ends of the multiple cylinders 86 located on the front of the mounting seat 82 in a one-to-one correspondence to clamp or release the cross connecting shaft 500. Correspondingly, the rack and pinion mechanism 83 includes a rack 831 provided on the mounting seat 82, a plurality of gears 832 meshing with the rack 831 and arranged equidistantly, and a cylinder 833 connected to the rack 831, and the gears 832 are connected to the cylinder 86 in a one-to-one correspondence. The cylinder 833 is used to drive the rack 831 to move linearly along the X-axis direction, so that the multiple gears 832 rotate accordingly, thereby driving the multiple steering clamps 84 to rotate synchronously. Specifically, when the second assembling device 60 completes the assembly of the first component 701 on the connecting arm 501 at one end face of the cross-connecting shaft 500, the rotating device 80 can remove the cross-connecting shaft 500 from the second turntable 20 and adjust the angle, and then put it back on the second turntable 20, repeating the removal and rotation three times, 90° each time, to complete the corresponding assembly of the first components 701 on the connecting arms 501 at the four end faces of the cross-connecting shaft 500.

[0048] Combination Figure 3 , Figure 4 and Fig.13The second assembly device 60 includes a cross-connecting shaft feeding mechanism 61 and a pressing mechanism 62 arranged in sequence along the transmission direction of the second turntable 20. The cross-connecting shaft feeding mechanism 61 is used to transfer the cross-connecting shaft 500 to the second fixture 21, and the pressing mechanism 62 is used to press the first component 701 placed on the connecting arm 501 of the cross-connecting shaft 500, so that the screw 400 in the first component 701 is pressed into place to form the second component 702. Among them, the cross-connecting shaft feeding mechanism 61 automatically feeds through the vibration plate 611, and transfers the cross-connecting shaft 500 from the discharge port of the vibration plate to the corresponding clamping position 211 of the second fixture 21 one by one through the feeding clamp. The press-fitting mechanism 62 includes a mounting frame 621, a cylinder 622 mounted on the mounting frame 621, and a pressing plate 623 connected to the output end of the cylinder 622. A pressing head 6231 is provided at a position on the pressing plate 623 corresponding to the clamping position 211 of the second fixture 21. The pressing head 6231 is used to press the head 402 of the screw 400 from the port 201 of the center block 200, thereby pressing the screw 400 into place and clamping it in the clamping groove 5011 of the connecting arm 501. In the present application, the screws 400 in the six first components 701 can be pressed at the same time each time. After one press-fitting, the rotating device 80 rotates the first component 701 once, and the press-fitting mechanism 62 presses again. This is repeated three times to realize the press-fitting of the corresponding screws 400 on the connecting arms 501 on the four end faces of the cross connecting shaft 500.

[0049] See 4 and Fig.14 Specifically, in this embodiment, the third assembly device 70 includes an end cover vibrating material plate 71, a receiving trough 72, a blocking member 73, a third fixture 74 and a crimping member 75. The receiving trough 72 is arranged in a direction perpendicular to the feeding direction of the end cover vibrating material plate 71, and a side end of the receiving trough 72 is provided with a receiving port connected to the discharge port of the end cover vibrating material plate 71. The blocking member 73 is movably arranged between the receiving port and the discharge port under the driving of a blocking driver 76 connected thereto, and is used to limit or allow the discharge port to be connected to the receiving port. The third jig 74 is provided at the end of the receiving slot 72, and is used to fix the second component 702, so that the second component 702 is placed horizontally, and the center block 200 is clamped at the port of the receiving slot 72. The crimping member 75 is movably arranged in the receiving slot 72 under the drive of the crimping driver 77 connected thereto, and is used to push the end cap 600 in the receiving slot 72 toward the direction of the third jig 74 to make it crimped on the center block 200, so as to close the port of the center block 200. Preferably, in order to realize the synchronous press-fitting of the end caps 600 in four directions, the end cap vibrating material plate 71, the receiving slot 72 and the crimping member 75 are arranged in a one-to-one correspondence, and the specific number is 4. The number of the third jig 74 is one, and it is located at the center position of the four receiving slots 72. The four center blocks 200 of the second component 702 are clamped in the four receiving slots 72 in a one-to-one correspondence, so as to realize the press-fitting synchronously.

[0050] The following combination Figures 1 to 14 , the working principle of the Rubik's Cube cross center component assembly machine 100 of the present invention is described:

[0051] After the equipment is started, under the instruction of the control system, the center block feeding mechanism 41 is activated to push 6 center blocks 200 onto the first fixture 11 each time; thereafter, the 6 center blocks 200 on the first fixture 11 rotate to the spring assembly mechanism 42 along with the first turntable 10; the spring assembly mechanism 42 inserts the 6 springs 300 into the 6 center blocks 200 correspondingly three times, and the first turntable 10 then transfers the 6 center blocks 200 assembled with the springs 300 to the screw assembly mechanism 43; the screw assembly mechanism 43 assembles the 6 screws 400 into the center blocks 200 equipped with the springs 300 correspondingly three times, thereby forming 6 first components 701, which are then transferred to the unloading mechanism 44 by the first turntable 10; the unloading mechanism 44 transfers the 6 first components 701 from the first turntable 10 to the positioning fixture 441;

[0052] Next, the cross-connecting shaft feeding mechanism 61 is activated to transfer the six cross-connecting shafts 500 to the second fixture 21 each time, and the six cross-connecting shafts 500 on the second fixture 21 are rotated to the pressing mechanism 62 along with the second turntable 20; at the same time, the transfer device 50 transfers the six first components 701 on the positioning fixture 441, and during the transfer process, the spacing between the six first components 701 is adjusted according to the spacing of the clamping positions 211 on the second fixture 21, so that the six first components 701 are placed on the connecting arms 501 corresponding to the six cross-connecting shafts 500 on the second fixture 21; thereafter, the transfer device 50 is reset, and the pressing mechanism 62 is activated to synchronously press the first components 701 placed on the six connecting arms 501 from above, so that the screws 400 in the six first components 701 are synchronously pressed. Then, the pressing mechanism 62 is reset, and the rotating device 80 removes the six cross-connecting shafts 500 from the second fixture 21 at the same time and rotates them 90°, and then puts the six cross-connecting shafts 500 back into the second fixture 21 with the connecting arm 501 of the other end face facing upward, and the transfer device 50 just places another group of six first components 701 on the connecting arm 501 of this end face, and then the upper pressing mechanism 62 repeats the pressing action to realize the pressing of the first components 701 on the six connecting arms 501 on the second end face, and repeats the operation three times, so as to press the first components 701 correspondingly on the connecting arms 501 of the four end faces of the cross-connecting shaft 500 to form the second component 702 with the screw 400 pressed in place; then, the second turntable 20 transfers the second component 702 to a position opposite to the first conveyor belt 31;

[0053] Then, the first transfer mechanism 33 transfers the six second components 702 from the second fixture 21 to the first conveyor belt 31 at one time, and during the transfer process, the second components 702 are rotated 90 degrees, so that the second components 702 placed sideways are adjusted to be horizontal and transferred on the first conveyor belt 31; the first conveyor belt 31 transfers the second components 702 to a position close to the third assembly device 70;

[0054] After that, the second transfer mechanism 34 grabs one second component 702 from the first conveyor belt 31 to the third fixture 74 of the third assembly device 70 each time. At the same time, the four end cap vibrating plates 71 each convey one end cap 600 to the receiving trough 72. When the sensor senses the second component 702, it sends a signal to the control system. Under the control system, the four crimping parts 75 act synchronously to push the corresponding end caps 600, thereby realizing the synchronous pressing of the end caps 600 on the four center blocks 200 in the second component 702 to form a cross center component group 700.

[0055] Finally, the second transfer mechanism 34 transfers the cross center component 700 to the second conveyor belt 32 for conveying and unloading. At the same time, the second transfer mechanism 34 also places another second component 702 in the third fixture 74.

[0056] By repeating the above operations continuously, the automated assembly line operation of the cross center component 700 of the Rubik's Cube can be realized.

[0057] Compared with the prior art, the Rubik's Cube cross center component assembly machine 100 of the present invention includes a first assembly device 40 arranged on the side of the first turntable 10, a second assembly device 60 arranged on the side of the second turntable 20, and a third assembly device 70 arranged between the first conveyor belt 31 and the second conveyor belt 32 of the conveying device 30. The first assembly device 40 can not only realize the automatic loading of the center block 200, the spring 300 and the screw 400, but also automatically assemble the spring 300 on the center block 200, so that the screw 400 is assembled on the center block 200 in a manner of being inserted into the spring 300 to form a first component 701; the second assembly device 60 can not only realize the cross connecting shaft 500 The automatic loading of the first component 701 obtained by the first turntable 10 can also be pressed onto the connecting arm 501 of the cross connecting shaft 500 with the cooperation of the transfer device 50, thereby forming a second component 702 that is retractable and rotatable relative to the cross connecting shaft 500; the second component 702 is transferred from the second turntable 20 to the third assembly device 70 through the first conveyor belt 31; the third assembly device 70 can not only realize the automatic loading of the end cover 600, but also press the end cover 600 onto the port 201 of the center block 200 of the second component 702, thereby forming a cross center component 700; the cross center component 700 is then conveyed by the second conveyor belt 32 for unloading. The Rubik's Cube Cross Center Component Assembly Machine 100 of the present invention makes the layout of each station reasonable and compact through the arrangement of double turntables and double conveyor belts, effectively reduces the volume, has a simple structure and accurate positioning, can realize the automatic flow operation of the cross center component assembly, effectively improves the assembly efficiency and assembly accuracy, and correspondingly reduces the manufacturing cost.

[0058] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A Rubik's Cube Cross Center Component Assembly Machine, characterized in that: The invention comprises a first turntable and a second turntable which are arranged in sequence, a conveying device having a first conveyor belt and a second conveyor belt which are arranged in parallel and at intervals, a first assembling device arranged at the periphery of the first turntable, a transfer device arranged between the first turntable and the second turntable, a second assembling device arranged at the periphery of the second turntable, and a third assembling device arranged between the first conveyor belt and the second conveyor belt; the first assembling device is used for automatically loading a center block, a spring and a screw, and assembling the spring on the center block, and assembling the screw on the center block in a manner of inserting the screw into the spring, so as to form a first assembly; the transfer device Used to transfer the first component from the first turntable to the second turntable; the second assembling device is used for automatic loading of the cross connecting shaft, and crimping the first component on the connecting arm of the cross connecting shaft to form a second component whose center block can be telescopic and rotatable relative to the connecting arm; the first conveyor belt is used to transfer the second component from the second turntable to the third assembling device; the third assembling device is used for automatic loading of the end cover, and crimping the end cover on the center block of the second component to form a cross center component; the second conveyor belt is used for conveying and discharging the cross center component at the third assembling device.

2. The Rubik's Cube Cross Center Component Assembly Machine according to claim 1, characterized in that: The output end of the first conveyor belt, the input end of the second conveyor belt and the third assembling device are arranged in a straight line, and the third assembling device is located at the center of the first conveyor belt and the second conveyor belt.

3. The Rubik's Cube Cross Center Component Assembly Machine according to claim 1, characterized in that: The conveying device also includes a first transfer mechanism and a second transfer mechanism which are arranged in parallel and at intervals. The first transfer mechanism is set between the input end of the first conveyor belt and the second turntable, and the second transfer mechanism is set between the output end of the first conveyor belt and the input end of the second conveyor belt.

4. The Rubik's Cube Cross Center Component Assembly Machine according to claim 1, characterized in that: The first assembling device includes a center block loading mechanism, a spring assembling mechanism, a screw assembling mechanism and a unloading mechanism which are arranged in sequence along the conveying direction of the first turntable. A plurality of first jigs are evenly distributed on the first turntable. The center block loading mechanism is used to place the center block on the first jig. The spring assembling mechanism is used to insert the spring into the center block. The screw assembling mechanism is used to assemble the screws on the center block in a manner of passing through the spring to form the first component. The unloading mechanism is used to transfer the first component from the first turntable to the transfer device.

5. The Rubik's Cube Cross Center Component Assembly Machine according to claim 4, characterized in that: The screw assembly mechanism includes a screw vibration disk, a sleeve arranged along the Z-axis direction, and a positioning piece arranged between the sleeve and the first turntable. The sleeve is mounted above the first turntable and is used to vertically insert the screw provided by the screw vibration disk into the center block. The positioning piece is provided with a penetration cavity that matches the shape of the outer contour of the screw and is used to position and guide the screw passing through the sleeve.

6. The Rubik's Cube Cross Center Component Assembly Machine according to claim 1, characterized in that: The transfer device includes a transfer mechanism mounted above the first turntable and the second turntable and at least two transfer jaws connected to the output end of the transfer mechanism. The transfer mechanism is used to drive at least two of the transfer jaws to move back and forth in a straight line along the Y-axis and Z-axis directions, and during the movement process, it can also drive at least two of the transfer jaws to move relative to each other along the X-axis direction to adjust the distance between them.

7. The Rubik's Cube Cross Center Component Assembly Machine according to claim 1, characterized in that: It also includes a rotating device disposed between the transfer device and the second turntable, the rotating device is used to drive the cross connecting shaft to rotate, so that the transfer device can assemble the first component on the connecting arms at different end faces of the cross connecting shaft.

8. The Rubik's Cube Cross Center Component Assembly Machine according to claim 7, characterized in that: The rotating device includes a base plate, a mounting seat slidably mounted on the base plate, a gear rack mechanism disposed on the back of the mounting seat, and a steering clamp installed on the front of the mounting seat and connected to the output end of the gear rack mechanism. The mounting seat slides on the base plate to drive the steering clamp to make a linear reciprocating motion close to or away from the second turntable, so as to take and place the cross-connecting shaft on the second turntable. The gear rack mechanism can drive the steering clamp to drive the cross-connecting shaft to rotate 90° each time, so that the connecting arms on different end faces of the cross-connecting shaft are rotated to a vertical upward position in sequence.

9. According to the Rubik's Cube cross center component assembly machine described in claim 1, the second assembly device includes a cross-connecting shaft feeding mechanism and a pressing mechanism arranged in sequence along the transmission direction of the second turntable, and a plurality of second fixtures are provided on the second turntable. The cross-connecting shaft feeding mechanism is used to transfer the cross-connecting shaft to the second fixture, and the pressing mechanism is used to press the first component placed on the connecting arm of the cross-connecting shaft so that the screws in the first component are pressed into place to form a second component.

10. The Rubik's Cube cross center component assembly machine according to claim 1, wherein the third assembly device includes an end cover vibration disk, a material receiving trough, a blocking piece, a third fixture and a crimping piece, the material receiving trough is arranged in a direction perpendicular to the feeding direction of the end cover vibration disk, and the side end of the material receiving trough is provided with a material receiving port connected to the discharge port of the end cover vibration disk, the blocking piece is movably arranged between the material receiving port and the discharge port, and is used to limit or allow the connection between the discharge port and the material receiving port, the third fixture is arranged at the end of the material receiving trough, and is used to fix the second component so that the center block of the second component can be clamped at the port of the material receiving trough, and the crimping piece is movably arranged in the material receiving trough, and is used to push the end cover in the material receiving trough to be crimped onto the center block.

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