A multiple chain circulation conveyor line for motor magnet assembly production

Abstract

The present invention discloses a multiple chain circulation conveyor line for motor magnet assembly production, comprising: a production line frame, a circulation turntable assembly, a multiple chain circulation line body respectively installed on the production line frame, and a carrier turntable opening and closing control assembly, the circulation turntable assembly comprising: a bearing bottom plate, a product positioning reference block is fixedly provided on the top of the bearing bottom plate, and a first opening and closing unit and a second opening and closing unit of mutually symmetrical structures are respectively provided on both sides of the product positioning reference block; the multiple chain circulation line body comprises an upper multiple chain output line body; a set of carrier turntable opening and closing control assemblies are provided below each assembly station of the upper multiple chain output line body. Compared with the prior art, the circulation turntable assembly can open and close automatically to meet the use requirements, and the circulation turntable assembly has multiple product receiving slots, which can realize accurate positioning of multiple products each time to ensure product quality, and the multiple chain circulation line body can transport the circulation turntable assembly to each station and realize the circulation use of the circulation turntable.

Description

Technical Field

[0001] The invention belongs to the technical field of motor magnet assembly production, and in particular relates to a multiple chain circulation conveyor line used for motor magnet assembly production. Background Art

[0002] A magnet assembly is used in a precision micro motor. The magnet assembly includes a magnet body and a yoke sheet bonded to the magnet body.

[0003] In the prior art, the scheme for bonding the magnet and the yoke sheet is: manually fix the position of the magnet body, apply glue on the surface of the magnet body one by one with a handheld glue gun, and then stick the yoke sheet on it, and manually fine-tune the position of the yoke sheet as needed, and obtain the required motor magnet after the glue solidifies. The existing method of mainly relying on manual assembly and production of motor magnets cannot provide accurate and reliable positioning for the magnet body and the yoke sheet, and the relative position accuracy of the magnet body and the yoke sheet is difficult to guarantee, which affects product quality, and the manual operation efficiency is low.

[0004] In order to improve the product quality of motor magnets and realize the automatic assembly and production of motor magnets, it is necessary to design a motor magnet assembly production line. During the assembly process of motor magnets, a flow turntable is required to accommodate the components of the motor magnets and automatically transfer the materials to each station (such as loading, dispensing, curing and unloading stations), and realize the recycling of the flow turntable. The flow turntable is also required to accurately position the materials and open and close the flow turntable according to the needs of the station.

[0005] The multiple chain conveyor line in the prior art is a simple line structure, and the carrier is a simple flat plate carrier structure, which cannot meet the above complex requirements.

[0006] Therefore, it is necessary to provide a new multiple chain circulation conveyor line for motor magnet assembly production to solve the above technical problems. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] Based on this, the present invention provides a multiple chain circulating conveyor line for motor magnet assembly production to solve the technical problem in the prior art that simple structure multiple chain conveyor lines and carriers cannot meet the requirements of motor magnet assembly production.

[0009] (II) Technical solution

[0010] In order to solve the above technical problems, the present invention proposes a multiple chain circulating conveyor line for the assembly and production of motor magnets, comprising: a production line frame, a circulation pallet assembly, a multiple chain circulating line body and a carrier plate opening and closing control assembly respectively installed on the production line frame, the multiple chain circulating line body is used to carry the circulation pallet assembly to move; the circulation pallet assembly comprises: a bearing bottom plate, a product positioning reference block is fixedly provided on the top of the bearing bottom plate, and a first opening and closing unit and a second opening and closing unit of mutually symmetrical structures are respectively provided on both sides of the product positioning reference block; the multiple chain circulating line body comprises an upper multiple chain output line body passing through multiple assembly stations; the upper multiple chain output line body is provided with a set of the carrier plate below each of the assembly stations A tray opening and closing control component, the tray opening and closing control component includes: a wedge block, a wedge block telescopic linear drive providing telescopic power for the wedge block; the circulating tray assembly includes a closed state and an open state; the circulating tray assembly opens and accumulates elastic force under the squeezing action of the wedge block, and makes the circulating tray assembly in the open state; the circulating tray assembly is in the closed state under the action of the elastic force; when the circulating tray assembly is in the closed state: the first opening and closing unit and the product positioning reference block jointly form a plurality of first product receiving grooves matching the shape of the motor magnet, and the second opening and closing unit and the product positioning reference block jointly form a plurality of second product receiving grooves matching the shape of the motor magnet.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the multiple chain circulation conveyor line used in the present invention for motor magnet assembly production can automatically open and close the circulation turntable assembly to meet usage requirements, and the circulation turntable assembly has multiple product receiving slots, which can accurately position multiple products each time to ensure product quality. The multiple chain circulation line can transport the circulation turntable assembly to each workstation and realize the recycling of the circulation turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0015] Figure 2 In the present invention: the three-dimensional streaming disc assembly Figure 1 ;

[0016] Figure 3 In the present invention: the three-dimensional streaming disc assembly Figure 2 ;

[0017] Figure 4 The present invention is: a schematic top view of the flow disc assembly (including rectangular magnets);

[0018] Figure 5 For along Figure 4 Sectional view along line AA;

[0019] Figure 6 For along Figure 4 A magnified view of the cross-sectional view of the midline BB;

[0020] Figure 7 For along Figure 4 A magnified view of the cross-sectional view of the CC line;

[0021] Figure 8 This is a three-dimensional schematic diagram of the structure of the partial flow tray assembly in the present invention (excluding the second product positioning block and the first connecting plate);

[0022] Fig. 9 In the present invention: Decomposition of streaming disc assembly Figure 1 ;

[0023] Fig.10 In the present invention: Decomposition of streaming disc assembly Figure 2 ;

[0024] Fig.11 It is a schematic diagram of the overall structure of the present invention (mainly used to show the structure of the multiple chain loop line body);

[0025] Fig.12 For the present invention: a three-dimensional schematic diagram of some structures Figure 1 ; (including: carrier opening and closing control components, carrier lifting and positioning components and flow carrier components);

[0026] Fig.13 For the present invention: a three-dimensional schematic diagram of some structures Figure 2 ; (including: carrier opening and closing control components and carrier lifting and positioning components);

[0027] Fig.14 For the present invention: a three-dimensional schematic diagram of some structures Figure 3 ; (Including: magnetization segment multiple chain and two sets of check block pusher units)

[0028] Fig.15 for Figure 1 A partial enlarged view of point D in the middle;

[0029] Fig.16 for Figure 1 A partial enlarged view of point E in the middle;

[0030] Fig.17The present invention is a structural schematic diagram of a carrier lifting assembly;

[0031] Fig.18 This is a structural schematic diagram of the carrier plate descending assembly in the present invention.

[0032] Description of reference numerals:

[0033] 100, motor magnet; 300, wedge block extension position; 400, production line frame; 500, circulation tray assembly; 600, tray opening and closing control assembly; 700, tray lifting and positioning assembly; 800, multiple chain circulation line body; 900, check block pushing unit;

[0034] 1. Stop column; 2. Product positioning reference block; 3. First opening and closing unit; 4. First product receiving slot; 5. Second opening and closing unit; 6. Wear strip; 7. Second product receiving slot; 8. Load-bearing bottom plate; 9. Clamp cover; 10. Positioning sleeve; 11. Opening limit block; 12. Limiting collision block; 13. Retractable fork; 14. Wedge block; 15. Wedge block telescopic linear drive; 16. Positioning component support frame; 17. Lifting cylinder; 18. Lifting top plate; 19. Lifting slide rail; 20. Front stop cylinder; 021, rear check block; 22, positioning ejector pin; 23, adjustable screw; 24, press frame; 25, multiple chains for loading and dispensing sections; 26, multiple chains for baking and fixing sections; 27, multiple chains for magnetizing sections; 28, carrier plate descending assembly; 29, lower multiple chain return line; 30, carrier plate ascending assembly; 031, push cylinder assembly; 032, material shifting telescopic cylinder; 033, mounting plate; 034, check block; 035, coil spring; 036, three-axis linear module;

[0035] 21. Product fixing groove;

[0036] 31. First product positioning block; 32. First connecting plate; 33. First mounting block; 34. First closing return spring; 35. First opening limit column; 36. First opening push wheel; 37. First closing limit column; 38. First elastic pressing unit; 39. First sliding assembly;

[0037] 51. second product positioning block; 52. second connecting plate; 53. second mounting block; 54. second closing return spring; 55. second opening limit column; 56. second opening push wheel; 57. second closing limit column; 58. second elastic pressing unit; 59. second sliding assembly;

[0038] 61. Side chamfer; 62. Bottom chamfer;

[0039] 81. Bottom plate body; 82. Reference block support platform;

[0040] 311, first spring hole; 312, first shaft hole; 313, first movable surrounding groove;

[0041] 371, first fixed end; 372, first abutting limit end;

[0042] 381, first compression spring; 382, ​​first compression column;

[0043] 511, second spring hole; 512, second shaft hole; 513, second movable groove;

[0044] 571, second fixed end; 572, second abutting limiting end;

[0045] 581, second compression spring; 582, second compression column;

[0046] 821, trepanning;

[0047] 301, lifting support plate; 302, spiral lifting assembly;

[0048] 0331, limit surface;

[0049] 0341. Avoidance surface; 0342. Pushing surface. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0051] The following is combined with Figure 1-18 The multiple chain circulation conveyor line for motor magnet assembly production of the present invention is further described.

[0052] Please focus on Figure 1-2 and Figure 12-13The present invention discloses a multiple chain circulating conveyor line for motor magnet assembly production, comprising: a production line frame 400, a circulation tray assembly 500, a multiple chain circulating line body 800 and a carrier plate opening and closing control assembly 600 respectively installed on the production line frame 400, the multiple chain circulating line body 800 is used to carry the circulation tray assembly 500 to move; the circulation tray assembly 500 comprises: a bearing bottom plate 8, a product positioning reference block 2 is fixedly provided on the top of the bearing bottom plate 8, and a first opening and closing unit 3 and a second opening and closing unit 5 of mutually symmetrical structures are respectively provided on both sides of the product positioning reference block 2; the multiple chain circulating line body 800 comprises an upper multiple chain output line body passing through a plurality of assembly stations; a set of carrier plate opening and closing control is provided under the upper multiple chain output line body corresponding to each assembly station Component 600, the carrier opening and closing control component 600 includes: a wedge block 14, a wedge block telescopic linear drive 15 that provides telescopic power for the wedge block 14; the circulating carrier assembly 500 includes a closed state and an open state; the circulating carrier assembly 500 opens and accumulates elastic force under the squeezing action of the wedge block 14, and makes the circulating carrier assembly 500 in an open state; the circulating carrier assembly 500 is in a closed state under the action of the elastic force; when the circulating carrier assembly 500 is in a closed state: the first opening and closing unit 3 and the product positioning reference block 2 jointly enclose a plurality of first product receiving grooves 4 that match the shape of the motor magnet 100, and the second opening and closing unit 5 and the product positioning reference block 2 jointly enclose a plurality of second product receiving grooves 7 that match the shape of the motor magnet 100.

[0053] In this embodiment, the functions of each component are as follows.

[0054] The production line frame 400 is in a frame state as a whole, which is used to provide an installation and support foundation.

[0055] The multiple chain circulation line body 800 carries the circulation wheel assembly 500 and moves along the production line direction, and returns the empty circulation wheel assembly 500 to the production line to realize the circulation transportation of the circulation wheel assembly 500. Among them: the movement direction of the upper multiple chain output line body is the direction of the assembly line of the motor magnet 100, which is used to carry the circulation wheel assembly 500 through the material one loading station, the material one gluing station, the material two loading and fixing station, the material two gluing station, the material three loading and fixing station, the pressing and fixing station, the baking and curing station, the magnetizing station and the finished product unloading station in sequence.

[0056] In the circulation transport plate assembly 500: the bearing base plate 8 is used for supporting, the product positioning reference block 2 is fixed to the bearing base plate 8, the first opening and closing unit 3 and the second opening and closing unit 5 respectively cooperate with the product positioning reference block 2 to form a plurality of openable and closable product receiving grooves to accommodate the constituent materials of the motor magnet 100, and switch between the closed state and the open state as required to realize and position the material.

[0057] In the carrier opening and closing control assembly 600: the wedge block 14, under the action of the wedge block telescopic linear drive 15, squeezes the first opening and closing unit 3 and the second opening and closing unit 5 at the same time, and the first opening and closing unit 3 and the second opening and closing unit 5 are forced to open at the same time (moving in the direction away from the product positioning reference block 2), so that the manipulator can probe and put in the magnetic material (loading) or take out the assembled material (finished product unloading). In addition, elastic parts such as compression springs are set in the circulation tray assembly 500, and the first opening and closing unit 3 and the second opening and closing unit 5 squeeze the compression spring when they are opened. When the wedge block 14 moves in the opposite direction, under the action of the elastic force of the compression spring, the first opening and closing unit 3 and the second opening and closing unit 5 are forced to retract (moving in the direction close to the product positioning reference block 2), and the circulation tray assembly 500 is in a closed state.

[0058] In this embodiment: the circulation wheel assembly 500 can be opened and closed automatically to meet the use requirements, and the product receiving slots (first product receiving slot 4 and second product receiving slot 7) in the circulation wheel assembly 500 are multiple and match the shape of the motor magnet 100. The circulation wheel assembly 500 can accurately position multiple products at the same time and can assemble multiple motor magnets 100 at the same time. The multiple chain circulation line 800 can transport the circulation wheel assembly 500 to each station and realize the recycling of the circulation wheel assembly 500.

[0059] Please focus on Figure 3-10According to a specific embodiment of the present invention, the first opening and closing unit 3 includes: a first product positioning block 31, a first connecting plate 32, a first mounting block 33, a first closing return spring 34 and a first opening limit column 35; the first product positioning block 31 is located at the side of the product positioning reference block 2, and the first product positioning block 31 and the product positioning reference block 2 together form a plurality of first product receiving grooves 4; the first connecting plate 32 is located at a side of the first product positioning block 31 away from the product positioning reference block 2, and the first connecting plate 32 is slidably connected to the bearing bottom plate 8; the first mounting block 33 is located at the side of the first product positioning block 31 away from the product positioning reference block 2, and the first connecting plate 32 is slidably connected to the bearing bottom plate 8 The first connecting plate 32 is on the side away from the product positioning reference block 2; the two ends of the first closing return spring 34 are respectively abutted against the first mounting block 33 and the first connecting plate 32, one end of the first opening limit column 35 is fixed to the first mounting block 33, and the other end of the first opening limit column 35 is facing the side of the first connecting plate 32; the second opening and closing unit 5 includes: a second product positioning block 51, a second connecting plate 52, a second mounting block 53, a second closing return spring 54 and a second opening limit column 55; the second product positioning block 51 is located on the side of the product positioning reference block 2, and the second product The positioning block 51 and the product positioning reference block 2 together form a plurality of second product receiving grooves 7; the second connecting plate 52 is located on the side of the second product positioning block 51 away from the product positioning reference block 2, and the second connecting plate 52 is slidably connected to the bearing bottom plate 8; the second mounting block 53 is located on the side of the second connecting plate 52 away from the product positioning reference block 2; the two ends of the second closing reset spring 54 are respectively abutted against the second mounting block 53 and the second connecting plate 52, one end of the second opening limiting column 55 is fixed to the second mounting block 53, and the other end of the second opening limiting column 55 is directly opposite to the second connecting plate 5 2 side; the first opening and closing unit 3 also includes a first opening push wheel 36; the first opening push wheel 36 is installed on the first connecting plate 32 or the first product positioning block 31; the second opening and closing unit 5 also includes a second opening push wheel 56; the second opening push wheel 56 is installed on the second connecting plate 52 or the second product positioning block 51; the wedge block 14 squeezes the first opening push wheel 36 and the second opening push wheel 56 at the same time, and simultaneously pushes the first product positioning block 31 and the second product positioning block 51 to move in a direction away from the product positioning reference block 2, so that the flow tray assembly 500 is in an open state.

[0060] In this embodiment, the structures of the first opening and closing unit 3 and the second opening and closing unit 5 in the streaming disk assembly 500 are designed in more detail.

[0061] Regarding the open state of the circulation transport plate assembly 500: the telescopic linear drive drives the wedge block 14 to extend to the position between the first opening push wheel 36 and the second opening push wheel 56 (the wedge block 14 extends into the position 300), and then moves in the direction close to the product positioning reference block 2, and uses the two wedge surfaces of the wedge block 14 to simultaneously push the first opening push wheel 36 and the second opening push wheel 56, forcing the first product positioning block 31 and the second product positioning block 51 on both sides to slide simultaneously in the direction away from the product positioning reference block 2 until the first connecting plate 32 abuts against the first opening limit column 35, and the second connecting plate 52 abuts against the second opening limit column 55. At this time, the circulation disk assembly 500 is in an open state; the first connecting plate 32 moves and compresses the first closing return spring 34, and the first closing return spring 34 accumulates elastic force; the second connecting plate 52 moves and compresses the second closing return spring 54, and the second closing return spring 54 accumulates elastic force. In this state, all the first product receiving slots 4 and all the second product receiving slots 7 become larger, which is convenient for the robot to put materials into the receiving slots or take materials out of the receiving slots.

[0062] Regarding the closed state of the circulation wheel assembly 500: the telescopic linear drive drives the wedge block 14 to retract in the direction away from the product positioning reference block 2, and under the action of the first closing reset spring 34, the first product positioning block 31 and the first connecting plate 32 are pushed to slide in the direction close to the product positioning reference block 2 at the same time, and stop when the first product positioning block 31 abuts against the product positioning reference block 2; at the same time, under the action of the second closing reset spring 54, the second product positioning block 51 and the second connecting plate 52 are pushed to slide in the direction close to the product positioning reference block 2 at the same time, and stop when the second product positioning block 51 abuts against the product positioning reference block 2. At this time, the circulation wheel assembly 500 is in a closed state, in which all the first product receiving slots 4 and all the second product receiving slots 7 become smaller, and the magnet material is firmly received in the product receiving slots. When the circulation wheel assembly 500 moves with the production line as a whole or performs the processes of dispensing, pressing and curing the product, the circulation wheel assembly 500 is in a closed state to ensure the accuracy of product assembly production.

[0063] In this embodiment, the circulation tray assembly 500 uses a wedge block 14 and two opening push wheels (a first opening push wheel 36 and a second opening push wheel 56) to push the first product positioning block 31 and the second product positioning block 51 to open synchronously, thereby ensuring the synchronization of the actions of the first product positioning block 31 and the second product positioning block 51, reducing the number of power parts and reducing the cost. More specifically, the first opening push wheel 36 and the second opening push wheel 56 can both rotate around their own axes. This structure is conducive to ensuring smooth opening.

[0064] According to a specific embodiment of the present invention, the first opening and closing unit 3 also includes a first closing limit column 37, the two ends of the first closing limit column 37 are respectively a first fixed end 371 and a first abutting limit end 372, the first fixed end 371 is fixed to the first connecting plate 32, and the first abutting limit end 372 is directly opposite to one side of the bearing bottom plate 8; the second opening and closing unit 5 also includes a second closing limit column 57, the two ends of the second closing limit column 57 are respectively a second fixed end 571 and a second abutting limit end 572, the second fixed end 371 is fixed to the first connecting plate 32, and the first abutting limit end 372 is directly opposite to one side of the bearing bottom plate 8; The end 571 is fixed to the second connecting plate 52, and the second abutment limit end 572 is opposite to one side of the bearing bottom plate 8; when the circulation transfer plate assembly 500 is in a closed state: the first abutment limit end 372 abuts against the bearing bottom plate 8, and there is a gap between the first product positioning block 31 and the product positioning reference block 2, and the second abutment limit end 572 abuts against the bearing bottom plate 8, and there is a gap between the second product positioning block 51 and the product positioning reference block 2; the second closed limit column 57 has the same structure as the first closed limit column 37.

[0065] In this embodiment, the first closing limit column 37 and the second closing limit column 57 are both used for closing limit. During the closing process, when the first closing limit column 37 abuts against the bearing bottom plate 8, there is a gap between the first product positioning block 31 and the product positioning reference block 2, that is, during closing, the first closing limit column 37 hits the opposite component before the first product positioning block 31 and limits the position; the second closing limit column 57 hits the opposite component before the second product positioning block 51 and limits the position. With this structure, the collision between the product positioning blocks (the first product positioning block 31 and the second product positioning block 51) and the product positioning reference block 2 during closing is avoided, the influence on the position of the magnet material in the product receiving cavity is reduced, and it is conducive to further improving the assembly accuracy.

[0066] It should be noted that when assembling and producing magnets, the first product positioning block 31 and the second product positioning block 51 need to be opened and closed multiple times to stack and assemble the materials. The structure of this embodiment can ensure positioning accuracy in the case of repeated opening and closing.

[0067] More specifically, the first closed limit column 37 includes a fixing nut and an adjusting screw, the fixing nut is fixed on the first connecting plate 32, one end of the adjusting screw is threadedly connected to the fixing nut, and the other end of the adjusting screw is a first abutting limit end 372; the end of the fixing nut away from the adjusting screw is a first fixed end 371. In this embodiment, the extension length of the adjusting screw can be adjusted by rotating the adjusting screw, thereby adjusting the position of the closed limit to accurately adjust the size of the first product receiving groove 4 when closed. The working principle of the second closed limit column 57 is the same as that of the first closed limit column 37, which will not be repeated here.

[0068] According to a specific embodiment of the present invention, a set of first elastic clamping units 38 is correspondingly provided on one side of each first product receiving groove 4, and each first product receiving groove 4 can accommodate a motor magnet 100, and the first elastic clamping unit 38 passes through the first product positioning block 31, and one end of the first elastic clamping unit 38 abuts against the first connecting plate 32, and the other end of the first elastic clamping unit 38 extends into the first product receiving groove 4 and is used to abut the side of the motor magnet 100; a set of second elastic clamping units 58 is correspondingly provided on one side of each second product receiving groove 7, and each second product receiving groove 7 can accommodate a motor magnet 100, the second elastic clamping unit 58 passes through the second product positioning block 51, and one end of the second elastic clamping unit 58 abuts against the second connecting plate 52, and the other end of the second elastic clamping unit 58 extends into the second product receiving groove 7 and is used to abut the side of the motor magnet 100; the first elastic clamping unit 38 and the second elastic clamping unit 58 have the same structure.

[0069] In this embodiment, when the flow disc assembly 500 is in a closed state, each first elastic clamping unit 38 abuts against the side of a motor magnet 100, applies elastic force to each motor magnet 100, and pushes each motor magnet 100 to align inward, thereby ensuring the accuracy of the position of each motor magnet 100, achieving precise positioning of the high magnet assembly, and during repeated positioning, a high repeated positioning accuracy can be ensured. The working principle of the second elastic clamping unit 58 is the same as that of the first elastic clamping unit 38, and will not be repeated here.

[0070] According to a specific embodiment of the present invention, the first elastic clamping unit 38 includes a first compression spring 381 and a first pressure column 382. The first product positioning block 31 is provided with a first clamping unit receiving hole running through it. The first clamping unit receiving hole is composed of a connected first spring hole 311 and a first shaft hole 312. The diameter of the first spring hole 311 is larger than the diameter of the first shaft hole 312. The first pressure column 382 includes a first clamping shaft section and a first telescopic shaft section that are fixedly connected. The first compression spring 381 and the first clamping shaft section are both received in the first spring hole 311. The first telescopic shaft section extends into the first An axial hole 312; the second elastic clamping unit 58 includes a second compression spring 581 and a second pressure column 582. The second product positioning block 51 is provided with a second clamping unit receiving hole running through it. The second clamping unit receiving hole is composed of a connected second spring hole 511 and a second axial hole 512. The diameter of the second spring hole 511 is larger than the diameter of the second axial hole 512. The second pressure column 582 includes a second clamping shaft section and a second telescopic shaft section that are fixedly connected. The second compression spring 581 and the second clamping shaft section are both received in the second spring hole 511, and the second telescopic shaft section extends into the second axial hole 512.

[0071] This embodiment further defines the structures of the first elastic pressing unit 38 and the second elastic pressing unit 58. The structures and operating principles of the first elastic pressing unit 38 and the second elastic pressing unit 58 are the same, and the first elastic pressing unit 38 is taken as an example for description.

[0072] When the first compression spring 381 is in a free state, the first telescopic shaft section extends out of the first shaft hole 312 receiving hole for a distance, and the first elastic clamping unit 38 moves toward the product positioning reference block 2 as a whole along with the first product positioning block 31 and the first connecting plate 32, until the flow disc assembly 500 is in a closed state, the first telescopic shaft section abuts against the motor magnet 100 and squeezes the first compression spring 381, and finally the first pressure column 382 applies an elastic force to each motor magnet 100.

[0073] According to a specific embodiment of the present invention, a plurality of recessed product fixing grooves 21 are respectively provided on both sides of the product positioning reference block 2; a first movable recessed groove 313 is correspondingly provided on one side of the first product positioning block 31 close to the product fixing groove 21, and one product fixing groove 21 and a corresponding first movable recessed groove 313 form a first product receiving groove 4; the first clamping unit receiving hole is communicated with the first product receiving groove 4; a second product positioning block 51 is correspondingly provided on one side of the second product positioning block 51 close to the product fixing groove 21, and one product fixing groove 21 and a corresponding second movable recessed groove 513 form a second product receiving groove 7; the second clamping unit receiving hole is communicated with the second product receiving groove 7; the first product receiving groove 4 and the second product receiving groove 7 are both rectangular as a whole.

[0074] More specifically, the cross section of the motor magnet 100 is fan-shaped, and multiple motor magnets 100 can be subsequently formed into a ring shape and used as motor assembly accessories. The upper and lower surfaces of the motor magnet 100 are arc surfaces, and when assembled, it is inverted in the product receiving groove, and the projection of the motor magnet 100 on the bottom surface of the receiving groove is a rectangle.

[0075] In this embodiment, the shape of the product receiving groove (the first product receiving groove 4 or the second product receiving groove 7 ) matches the projection shape of the motor magnet 100 on the bottom surface of the receiving groove.

[0076] According to a specific embodiment of the present invention, the bearing base plate 8 includes a base plate body 81 which is a flat plate as a whole, a raised reference block support platform 82 is provided on the upper part of the base plate body 81, the product positioning reference block 2 is fixedly installed on the reference block support platform 82 by connecting the positioning parts, the first opening and closing unit 3 and the second opening and closing unit 5 are both installed on the upper part of the base plate body 81, and the first opening and closing unit 3 and the second opening and closing unit 5 are respectively installed on both sides of the reference block support platform 82; the first opening and closing unit 3 also includes a first sliding component 39 arranged between the base plate body 81 and the first connecting plate 32 and used to realize the sliding connection between the first connecting plate 32 and the bearing base plate 8; the second opening and closing unit 5 also includes a second sliding component 59 arranged between the base plate body 81 and the second connecting plate 52 and used to realize the sliding connection between the second connecting plate 52 and the bearing base plate 8.

[0077] In this embodiment, the reference block support platform 82 is provided with a raised shape, which, on the one hand, raises the position of the product positioning reference block 2 , thereby facilitating installation space for the first sliding assembly 39 and the second sliding assembly 59 .

[0078] According to a specific embodiment of the present invention, a support block 11 for limiting the extension length of the wedge block 14 is fixedly embedded on one side of the bottom of the reference block support platform 82, and a limit collision block 12 is fixedly embedded on one side of the bottom of the reference block support platform 82; the bottom plate body 81 is rectangular as a whole, and the flow disc assembly 500 also includes two wear-resistant strips 6 respectively arranged on both sides of the lower part of the bottom plate body 81, the wear-resistant strip 6 is rectangular as a whole, and the four corners of the wear-resistant strip 6 are respectively provided with side chamfers 61, and the bottoms of the two ends of the wear-resistant strip 6 in the length direction are respectively provided with bottom chamfers 62; the first support push wheel 36 is installed at the lower part of the first connecting plate 32, and the second support push wheel 56 is installed at the lower part of the second connecting plate 52.

[0079] When the circulation tray assembly 500 is used in an occasion where it needs to cross two connected multiple chain segments, since there is a certain gap between two adjacent multiple chain segments, the bottom chamfer 62 is conducive to smoothly guiding the circulation tray assembly 500 from one multiple chain to another multiple chain, avoiding the lower part of the wear strip 6 from getting stuck during the transfer. The side chamfer 61 is also conducive to smoothly guiding the circulation tray assembly 500 from one multiple chain to another multiple chain, avoiding the side wall of the wear strip 6 from getting stuck during the transfer.

[0080] In this embodiment, when the wedge block 14 is extended to a preset length, the wedge block 14 abuts against the expansion limit block 11. With this structure, the extension length of the wedge block 14 can be adjusted by adjusting the installation position of the expansion limit block 11, and the size of the receiving groove in the open state can be further adjusted. The limit collision block 12 is used to cooperate with the limit cylinder on the production line to achieve limiting. Specifically: the limit rod of the limit cylinder extends and abuts against the limit collision block 12, limiting the flow tray assembly 500 from continuing to move forward. After adopting the expansion limit block 11 and the limit collision block 12, the bearing bottom plate 8 can also be prevented from being directly hit, and the expansion limit block 11 and the limit collision block 12 can be selected separately from impact-resistant or vibration-absorbing materials, and can be replaced separately after being damaged, which greatly improves the overall performance of the flow tray.

[0081] According to a specific embodiment of the present invention, the flow transfer plate assembly 500 also includes two wear-resistant strips 6 respectively arranged on both sides of the lower part of the bottom plate body 81. The wear-resistant strip 6 is rectangular as a whole, and the four corners of the wear-resistant strip 6 are respectively provided with side chamfers 61, and the bottoms of the two ends of the wear-resistant strip 6 in the length direction are respectively provided with bottom chamfers 62.

[0082] In this embodiment, after the wear-resistant strip 6 is added, the wear-resistant strip 6 replaces the bearing bottom plate 8 to contact the multiple chains. When in use, the wear-resistant strip 6 directly contacts the rollers on the multiple chains. The wear-resistant strip 6 is made of plastic material, which can increase the contact friction between the wear-resistant strip 6 and the rollers, which is beneficial for the multiple chains to drive the circulation wheel assembly 500 to move. After the wear-resistant strip 6 is used, the wear of the lower part of the bearing bottom plate 8 can be avoided. After the wear-resistant strip 6 is worn out after long-term use, the wear-resistant strip 6 can be directly replaced, which is convenient for maintenance.

[0083] More specifically, the connection positioning member includes positioning pins and screws arranged alternately. Two sleeve holes 821 are arranged at intervals, and a positioning sleeve 10 is arranged in each sleeve hole 821. The first sliding assembly 39 is the same as the second sliding assembly 59, and the first sliding assembly 39 includes a guide rail and a slider matched with the guide rail.

[0084] Please focus on Figure 12-13According to a specific embodiment of the present invention, the carrier lifting and positioning assembly 700 includes: a positioning assembly support frame 16, a lifting cylinder 17, a lifting top plate 18, a lifting slide rail 19, a front stop cylinder 20, a rear check block 021 and a positioning ejector pin 22; the positioning assembly support frame 16 is rectangular as a whole, the lower part of the lifting cylinder 17 is installed on the positioning assembly support frame 16, the lower part of the lifting cylinder 17 is connected to the lifting top plate 18 and is used to drive the lifting top plate 18 to move up and down, the number of the lifting slide rails 19 is two sets, and the two sets of lifting slide rails 19 are arranged along a set of diagonal positions of the positioning assembly support frame 16; the rear check block 021 is installed on one side of the positioning assembly support frame 16, and the front stop cylinder 20 is arranged on the other side of the positioning assembly support frame 16; the positioning ejector pins 22 are respectively arranged on both sides of the lifting cylinder 17 and fixed to the upper part of the lifting top plate 18; the reference block support platform 82 A recessed sleeve hole 821 is provided at the bottom, and a positioning sleeve 10 which is annular as a whole is provided in the sleeve hole 821. There are two positioning sleeves 10, and the positions of the two positioning sleeves 10 are aligned one by one with the positions of the two positioning pins 22; the adjacent two sides of the bottom of the positioning component support frame 16 are respectively connected to the production line frame 400 through adjustable screws 23; the wedge block telescopic linear drive 15 in a set of carrier opening and closing control components 600 is correspondingly installed on the positioning component support frame 16 in a set of carrier lifting positioning components 700; a stop column 1 is respectively provided at the four corners of the upper part of the bottom plate body 81, and the upper part of the stop column 1 is higher than the upper part of the product positioning reference block 2; a group of top pressing units are also provided above each assembly station of the upper multiple chain output line body, and each group of top pressing units includes four pressing frames 24, and the four pressing frames 24 are arranged one by one directly above the four stop columns 1.

[0085] In this embodiment, the carrier plate lifting and positioning assembly 700 is used to lift and fix the circulation carrier plate assembly 500 located on the multiple chain circulation line body 800 at the required station, so as to facilitate operations such as loading and dispensing. In addition to providing an installation basis for other components in the carrier plate lifting and positioning assembly 700, the positioning assembly support frame 16 also provides an installation basis for the wedge block telescopic linear drive 15. Finally, a set of carrier plate opening and closing control assemblies 600 are correspondingly installed on a set of carrier plate lifting and positioning assemblies 700. The position of the positioning assembly support frame 16 can be adjusted by the adjustable screw 23 to ensure the accuracy of the position of the positioning assembly support frame 16.

[0086] The two sets of diagonally arranged lifting rails 19 can provide stable guidance for the lifting of the lifting top plate 18. The rear check block 021 includes a check block and a check compression spring. When the circulation tray assembly 500 moves along the production line direction, the check compression spring under the check block is pressed, and the circulation tray assembly 500 can pass smoothly. After passing, the check compression spring lifts the check block to limit the circulation tray assembly 500 from moving in the opposite direction of the production line.

[0087] When in use, when the position sensor senses that the flow tray assembly 500 moves to the preset station, the front stop cylinder 20 rises up to block the front of the flow tray assembly 500, and the block in the rear check block 021 just blocks the rear of the flow tray assembly 500. In this state, the front and rear of the flow tray assembly 500 are limited, and the flow tray assembly 500 stops at the preset position of the upper multiple chain output line body, which is convenient for the positioning pin 22 to align with the positioning sleeve 10 and insert. In order to further fix the flow tray assembly 500, the cylinder rod of the lifting cylinder 17 extends, driving the lifting top plate 18 and the positioning pin 22 upward, the two positioning pins 22 rise and correspond to the two positioning sleeves 10 inserted one by one, and the flow tray assembly 500 is lifted up as a whole and separated from the upper multiple chain output line body until the four blocking columns 1 abut against the four pressing frames 24 above. In this state, the circulation wheel assembly 500 is separated from the upper multiple chain output line body and is fixed by pressing up and down, which ensures the stability of the product receiving slot position and facilitates the robot to accurately locate and implement operations such as loading and dispensing.

[0088] Please focus on Figure 17-18 According to a specific embodiment of the present invention, the multiple chain circulation line 800 also includes: a carrier plate descending component 28, a lower multiple chain return line 29 and a carrier plate ascending component 30; the upper multiple chain output line includes: a loading and dispensing section multiple chain 25, a baking fixed section multiple chain 26 and a magnetizing section multiple chain 27 arranged in sequence along a straight line; the loading and dispensing section multiple chain 25, the baking fixed section multiple chain 26, the magnetizing section multiple chain 27, the carrier plate descending component 28, the lower multiple chain return line 29 and the carrier plate ascending component 30 are connected end to end in sequence; the carrier plate descending component 28 and the carrier plate ascending component 30 are symmetrical structures to each other, the carrier plate descending component 28 includes a lifting support plate 301 and a spiral lifting component for driving the lifting support plate 301 to extend and retract, and the top of the carrier plate ascending component 30 is also provided with a The circulating transport plate assembly 500 on the carrier plate lifting assembly 30 is pushed to the pushing cylinder assembly 031 on the loading and dispensing section multiple chain 25; the multiple chain circulating conveyor line for motor magnet assembly production also includes three sets of auxiliary passing assemblies, one set of auxiliary passing assemblies is arranged on one side of the loading and dispensing section multiple chain 25 and is used to transfer the circulating transport plate assembly 500 on the loading and dispensing section multiple chain 25 to the baking fixed section multiple chain 26; one set of auxiliary passing assemblies is arranged on the other side of the magnetizing section multiple chain 27 and is used to transfer the circulating transport plate assembly 500 located on the baking fixed section multiple chain 26 to the magnetizing section multiple chain 27; one set of auxiliary passing assemblies is arranged on one side of the magnetizing section multiple chain 27 and is used to transfer the circulating transport plate assembly 500 located on the magnetizing section multiple chain 27 to the carrier plate descending assembly 28.

[0089] In this embodiment, the upper multiple chain output line carries the circulation tray assembly 500 and enters the tray lowering assembly 28 after passing through each workstation. The tray lowering assembly 28 is used to lower the empty circulation tray assembly 500 to the lower multiple chain return line 29, and then input it to the upper multiple chain output line through the tray ascending assembly 30, so as to realize the recycling of the circulation tray assembly 500.

[0090] The upper multiple chain output line is composed of three segments of line bodies spliced ​​in sequence. There is inevitably a certain gap between adjacent segments. In order to pass through the gap smoothly, a structure of a clamping transfer robot and a pusher assembly is adopted.

[0091] The carrier lifting assembly 30 also includes a lifting support plate 301 and a spiral lifting assembly for driving the lifting support plate 301 to extend and retract. The spiral lifting assembly is a spiral transmission structure driven by a motor. When in use, the flow carrier assembly 500 is located on the lifting support plate 301 and follows the lifting support plate 301 to rise and fall.

[0092] The push cylinder assembly 031 includes a push cylinder that can be telescopic and a push plate driven by the push cylinder. When in use, the push cylinder drives the push plate to be pushed out, and can push the flow tray assembly 500 located on the push plate to cross the gap and enter the multiple chain 25 of the dispensing section for feeding.

[0093] Three sets of auxiliary passing components are used to assist the circulation transport plate assembly 500 to pass through three gaps smoothly (the gap between the loading and dispensing section multiple chain 25 and the baking fixed section multiple chain 26, the gap between the baking fixed section multiple chain 26 and the magnetizing section multiple chain 27, and the gap between the magnetizing section multiple chain 27 and the carrier plate lowering assembly 28). The auxiliary passing components work together with the pushing cylinder assembly 031 to ensure that the circulation transport plate assembly 500 flows smoothly on the multiple chain circulation line 800.

[0094] Please focus on Figure 14-15According to a specific embodiment of the present invention, the auxiliary passing component is a check block pushing unit 900, and the check block pushing unit 900 includes: a material-dipping telescopic cylinder 032, a mounting plate 033 and a check block 034, the material-dipping telescopic cylinder 032 is fixed to the mounting plate 033 and is used to drive the mounting plate 033 to extend and retract, the material-dipping telescopic cylinder 032 is installed on one side of the production line frame 400, the check block 034 is hingedly connected to the mounting plate 033, and a stop block 034 is provided between the mounting plate 033 and the check block 034 for driving the check block 034 to open. The coil spring 035 and the mounting plate 033 are provided with a limit surface for limiting the opening angle of the reverse thrust block 034; the front and rear side surfaces of the reverse thrust block 034 are respectively a avoidance action surface 0341 and a pushing action surface 0342; the reverse thrust block 034 includes a parallel production line state and a vertical production line state; when the reverse thrust block 034 is in the vertical production line state, the reverse thrust block 034 extends vertically into the upper part of the upper multiple chain output line body; when the reverse thrust block 034 is in the parallel production line state, the reverse thrust block 034 withdraws from the upper part of the upper multiple chain output line body.

[0095] Under the action of the coil spring 035, the reverse thrust block 034 extends above the output line of the upper multiple chain, and the reverse thrust block 034 is perpendicular to the production line direction (perpendicular to the production line state). When the circulation tray assembly 500 moves or the material shifting telescopic cylinder 032 acts (extends or retracts) and the blocking column 1 acts on the avoidance action surface 0341, the reverse thrust block 034 is pushed to rotate to a state parallel to the production line (parallel to the production line state), which does not affect the normal movement of the circulation tray assembly 500. When the avoidance action surface 0341 is separated from the blocking column 1, the reverse thrust block 034 is in a normal state under the action of the coil spring 035. When the material shifting telescopic cylinder 032 acts (extends or retracts) and the blocking column 1 acts on the pushing action surface 0342, under the action of the limiting surface, the reverse thrust block 034 cannot rotate, and the material shifting telescopic cylinder 032 extension or retraction force is transmitted to the blocking column 1, and the circulation tray assembly 500 is pushed to move, so as to assist the circulation tray assembly 500 to pass through the gap between the multiple chains smoothly.

[0096] It should be noted that the installation direction of the material-shifting telescopic cylinder 032 determines whether the material-shifting telescopic cylinder 032 acts on the pushing surface 0342 in the extended state or the retracted state. In this embodiment, the "front and rear" orientation in "the front and rear sides of the reverse thrust block 034 are respectively the avoidance surface 0341 and the pushing surface 0342" refers to the transmission direction of the upper multiple chain output line body.

[0097] With the structure of this embodiment, the reverse thrust block 034 has a reverse stop function, and the reverse thrust block 034 extending above the upper multiple chain output line body will not affect the circulation wheel assembly 500, and can smoothly push the circulation wheel assembly 500 to move when needed. And only one telescopic power (material-digging telescopic cylinder 032) is needed to realize the circulation wheel assembly 500 crossing the gap, which has the advantages of simple and reliable structure and low cost as a whole.

[0098] As can be seen from the above, in addition to the limiting function of the baffle column 1 in cooperation with the pressure frame 24 as mentioned above, the baffle column 1 also includes another function: when the circulation disc assembly 500 crosses two connected multiple chain segments, the reverse thrust block 034 acts on one side of the baffle column 1, and the baffle column 1 is used to provide a force application point. The reverse thrust block 034 pushes the circulation disc assembly 500 to move as a whole and flow into the next multiple chain segment.

[0099] Please focus on Fig.16 According to a specific embodiment of the present invention, the auxiliary passing component is a clamping and transferring robot, and a clamping cover 9 for lifting is respectively provided at both ends of the upper part of the reference block support platform 82; the clamping and transferring robot includes a retractable fork 037 that cooperates with the clamping cover 9, and the clamping and transferring robot is used to lift the circulation transport plate assembly 500 and move it to the target position.

[0100] In this embodiment, the gripping and transporting robot is a structure in which a retractable fork 037 is added to the existing three-axis linear module 036. The retractable fork 037 is in the shape of a fork with an opening. The top of the clamping cover 9 has a cover step protruding to the side. The retractable fork 037 is inserted under the cover step and lifted up, so that the clamping cover 9 and the entire circulation transport plate assembly 500 can be lifted, cross the gap and accurately placed on the lower multiple chain line body.

[0101] The clamping transfer robot and the check block pushing unit 900 are both used to assist the circulation tray assembly 500 to pass through the gaps between multiple chain segments.

[0102] The clamping and transporting robot can ensure the position accuracy of the circulation tray assembly 500 after placement, but the overall cost is higher, and it is suitable for occasions with larger transport gaps. The overall cost of the check block pusher unit 900 is low, but it cannot ensure high position accuracy, and is suitable for occasions with smaller transport gaps. In specific implementation, the clamping and transporting robot or the check block pusher unit 900 can be used alone according to needs, and the clamping and transporting robot and the check block pusher unit 900 can also be used in combination in the present invention.

[0103] In summary, the multiple chain circulation conveyor line for motor magnet assembly production can be used for conveying motor magnets 100, with high product clamping and positioning accuracy to ensure product quality. The conveyor line adopts a fully automated design, and the circulation of the rotating turntable makes the overall structure reasonable and reliable. The present invention cooperates with robots such as feeding, dispensing and unloading to realize the fully automatic assembly and production of motor magnets 100, which greatly reduces labor intensity and improves production efficiency while ensuring product quality.

[0104] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A multiple chain circulation conveyor line for motor magnet assembly production, characterized in that: include: A production line frame, a circulation tray assembly, a multiple chain circulating line body and a tray opening and closing control assembly respectively installed on the production line frame, the multiple chain circulating line body is used to carry the circulation tray assembly to move; the circulation tray assembly includes: a bearing bottom plate, a product positioning reference block is fixedly provided on the top of the bearing bottom plate, and a first opening and closing unit and a second opening and closing unit of mutually symmetrical structures are respectively provided on both sides of the product positioning reference block; the multiple chain circulating line body includes an upper multiple chain output line body passing through a plurality of assembly stations; a set of the tray opening and closing control assembly is provided under each of the assembly stations corresponding to the upper multiple chain output line body, and the tray opening and closing control assembly includes: a wedge block, a wedge block telescopic linear drive providing telescopic power for the wedge block; The circulating disc assembly includes a closed state and an open state; the circulating disc assembly opens and accumulates elastic force under the squeezing action of the wedge block, and makes the circulating disc assembly in the open state; the circulating disc assembly is in the closed state under the action of the elastic force; when the circulating disc assembly is in the closed state: the first opening and closing unit and the product positioning reference block jointly enclose a plurality of first product receiving grooves matching the shape of the motor magnet, and the second opening and closing unit and the product positioning reference block jointly enclose a plurality of second product receiving grooves matching the shape of the motor magnet; the first opening and closing unit includes: a first product positioning block, a first connecting plate, a first mounting block, a first closing return spring and a first opening limit column; the first product positioning reference block The positioning block is located at the side of the product positioning reference block, and the first product positioning block and the product positioning reference block together form a plurality of first product receiving grooves; the first connecting plate is located at a side of the first product positioning block away from the product positioning reference block, and the first connecting plate is slidably connected to the bearing bottom plate; the first mounting block is located at a side of the first connecting plate away from the product positioning reference block; the two ends of the first closing and returning spring are respectively abutted against the first mounting block and the first connecting plate, one end of the first opening limit column is fixed to the first mounting block, and the other end of the first opening limit column is facing the side of the first connecting plate; the second opening and closing unit includes: a second product positioning block, a second connecting plate, a second mounting block, a second closing and returning spring, and a second closing and returning spring. a positioning spring and a second opening limiting column; the second product positioning block is located at the side of the product positioning reference block, and the second product positioning block and the product positioning reference block together form a plurality of second product receiving grooves; the second connecting plate is located at the side of the second product positioning block away from the product positioning reference block, and the second connecting plate is slidably connected to the bearing bottom plate; the second mounting block is located at the side of the second connecting plate away from the product positioning reference block; the two ends of the second closing reset spring are respectively abutted against the second mounting block and the second connecting plate, one end of the second opening limiting column is fixed to the second mounting block, and the other end of the second opening limiting column is facing the side of the second connecting plate; the first opening and closing unit also includes a first opening push wheel;The first opening and pushing wheel is installed on the first connecting plate or the first product positioning block; the second opening and closing unit also includes a second opening and pushing wheel; the second opening and pushing wheel is installed on the second connecting plate or the second product positioning block; the wedge block squeezes the first opening and pushing wheel and the second opening and pushing wheel and the first product positioning block and the second product positioning block simultaneously move in the direction away from the product positioning reference block, so that the flow tray assembly is in the open state.; 2. The multiple chain circulation conveyor line for motor magnet assembly production according to claim 1 is characterized in that: The first opening and closing unit also includes a first closing limit column, the two ends of the first closing limit column are respectively a first fixed end and a first abutting limit end, the first fixed end is fixed to the first connecting plate, and the first abutting limit end is opposite to one side of the bearing bottom plate; the second opening and closing unit also includes a second closing limit column, the two ends of the second closing limit column are respectively a second fixed end and a second abutting limit end, the second fixed end is fixed to the second connecting plate, and the second abutting limit end is opposite to one side of the bearing bottom plate; when the circulation disc assembly is in a closed state: the first abutting limit end abuts against the bearing bottom plate, and there is a gap between the first product positioning block and the product positioning reference block, and the second abutting limit end abuts against the bearing bottom plate, and there is a gap between the second product positioning block and the product positioning reference block; the second closing limit column has the same structure as the first closing limit column.

3. The multiple chain circulating conveyor line for motor magnet assembly production according to claim 2 is characterized in that: A set of first elastic clamping units is correspondingly provided on one side of each first product receiving groove, and each first product receiving groove can accommodate a motor magnet, the first elastic clamping unit passes through the first product positioning block, and one end of the first elastic clamping unit abuts against the first connecting plate, and the other end of the first elastic clamping unit extends into the first product receiving groove and is used to abut against the side of the motor magnet; a set of second elastic clamping units is correspondingly provided on one side of each second product receiving groove, and each second product receiving groove can accommodate a motor magnet, the second elastic clamping unit passes through the second product positioning block, and one end of the second elastic clamping unit abuts against the second connecting plate, and the other end of the second elastic clamping unit extends into the second product receiving groove and is used to abut against the side of the motor magnet; the first elastic clamping unit and the second elastic clamping unit have the same structure; the first elastic clamping unit includes a first compression spring and a first pressure column, The first product positioning block is provided with a first clamping unit receiving hole running through it, and the first clamping unit receiving hole is composed of a connected first spring hole and a first axial hole, the diameter of the first spring hole is larger than the diameter of the first axial hole, and the first pressure column includes a first clamping shaft section and a first telescopic shaft section fixedly connected, the first compression spring and the first clamping shaft section are both received in the first spring hole, and the first telescopic shaft section extends into the first axial hole; the second elastic clamping unit includes a second compression spring and a second pressure column, and the second product positioning block is provided with a second clamping unit receiving hole running through it, and the second clamping unit receiving hole is composed of a connected second spring hole and a second axial hole, the diameter of the second spring hole is larger than the diameter of the second axial hole, and the second pressure column includes a second clamping shaft section and a second telescopic shaft section fixedly connected, the second compression spring and the second clamping shaft section are both received in the second spring hole, and the second telescopic shaft section extends into the second axial hole.

4. The multiple chain circulating conveyor line for motor magnet assembly production according to claim 3 is characterized in that: A plurality of recessed product fixing grooves are respectively provided on both sides of the product positioning reference block; a first movable recessed groove is correspondingly provided on one side of the first product positioning block close to the product fixing groove, and one of the product fixing grooves and a corresponding first movable recessed groove form a first product receiving groove; the first clamping unit receiving hole is communicated with the first product receiving groove; a second movable recessed groove is correspondingly provided on one side of the second product positioning block close to the product fixing groove, and one of the product fixing grooves and a corresponding second movable recessed groove form a second product receiving groove; the second clamping unit receiving hole is communicated with the second product receiving groove; the first product receiving groove and the second product receiving groove are both rectangular as a whole.

5. The multiple chain circulating conveyor line for motor magnet assembly production according to claim 4 is characterized in that: The bearing bottom plate includes a bottom plate body which is a flat plate as a whole, a raised reference block support platform is provided on the upper part of the bottom plate body, the product positioning reference block is fixedly installed on the reference block support platform by connecting positioning pieces, the first opening and closing unit and the second opening and closing unit are both installed on the upper part of the bottom plate body, and the first opening and closing unit and the second opening and closing unit are respectively installed on both sides of the reference block support platform; the first opening and closing unit also includes a first sliding component which is arranged between the bottom plate body and the first connecting plate and is used to realize the sliding connection between the first connecting plate and the bearing bottom plate; the second opening and closing unit also includes a second sliding component which is arranged between the bottom plate body and the second connecting plate and is used to realize the sliding connection between the second connecting plate and the bearing bottom plate; a fixed component is embedded on one side of the bottom of the reference block support platform for A support limit block is provided to limit the extension length of the wedge block, and a limit collision block is fixedly embedded on one side of the bottom of the reference block support platform; the bottom plate body is rectangular as a whole, and the circulation disc assembly also includes two wear-resistant strips respectively arranged on both sides of the lower part of the bottom plate body, the wear-resistant strip is rectangular as a whole, and the four corners of the wear-resistant strip are respectively provided with side chamfers, and the bottoms of the two ends of the length direction of the wear-resistant strip are respectively provided with bottom chamfers; the first support push wheel is installed at the lower part of the first connecting plate, and the second support push wheel is installed at the lower part of the second connecting plate; the circulation disc assembly also includes two wear-resistant strips respectively arranged on both sides of the lower part of the bottom plate body, the wear-resistant strip is rectangular as a whole, and the four corners of the wear-resistant strip are respectively provided with side chamfers, and the bottoms of the two ends of the length direction of the wear-resistant strip are respectively provided with bottom chamfers.

6. The multiple chain circulation conveyor line for motor magnet assembly production according to claim 5, characterized in that: The carrier plate lifting and positioning assembly includes: a positioning assembly support frame, a lifting cylinder, a lifting top plate, a lifting slide rail, a front stop cylinder, a rear check block and a positioning pin; the positioning assembly support frame is rectangular as a whole, and the lower part of the lifting cylinder is installed on the positioning assembly support frame, and the lower part of the lifting cylinder is connected to the lifting top plate and is used to drive the lifting top plate to rise and fall, and the number of the lifting slide rails is two sets, and the two sets of the lifting slide rails are arranged along a set of diagonal corners of the positioning assembly support frame; the rear check block is installed on one side of the positioning assembly support frame, and the front stop cylinder is arranged on the other side of the positioning assembly support frame; the positioning pins are respectively arranged on both sides of the lifting cylinder and fixed to the upper part of the lifting top plate; the bottom of the reference block support platform is provided with a recessed sleeve hole, A positioning sleeve which is annular as a whole is provided in the sleeve hole, and the number of the positioning sleeves is two, and the positions of the two positioning sleeves are aligned one by one with the positions of the two positioning pins; the two adjacent sides of the bottom of the positioning component support frame are respectively connected to the production line frame through adjustable screws; the wedge block telescopic linear drive in a set of the carrier opening and closing control assembly is correspondingly installed on the positioning component support frame in a set of the carrier lifting positioning assembly; a stop column is respectively provided at the four corners of the upper part of the base plate body, and the upper part of the stop column is higher than the upper part of the product positioning reference block; a group of top pressing units is also provided above each of the assembly stations corresponding to the upper multiple chain output line body, and each group of the top pressing units includes four pressing frames, and the four pressing frames are arranged one by one directly opposite to the top of the four stop columns.

7. The multiple chain circulating conveyor line for motor magnet assembly production according to claim 6, characterized in that: The multiple chain circulation line also includes: a carrier plate descending component, a lower multiple chain return flow line and a carrier plate ascending component; the upper multiple chain output line includes: a loading and dispensing section multiple chain, a baking fixed section multiple chain and a magnetizing section multiple chain arranged in sequence along a straight line; the loading and dispensing section multiple chain, the baking fixed section multiple chain, the magnetizing section multiple chain, the carrier plate descending component, the lower multiple chain return flow line and the carrier plate ascending component are connected end to end in sequence; the carrier plate descending component and the carrier plate ascending component are symmetrical structures, the carrier plate descending component includes a lifting support plate and a spiral lifting component for driving the lifting support plate to extend and retract, and the top of the carrier plate ascending component is also provided with a device for pushing the circulation carrier plate component on the carrier plate ascending component to The pushing cylinder assembly on the loading and dispensing section multiple chain; the multiple chain circulating conveyor line for motor magnet assembly production also includes three sets of auxiliary passing assemblies, one set of the auxiliary passing assemblies is arranged on one side of the loading and dispensing section multiple chain and is used to transfer the circulating disc assembly on the loading and dispensing section multiple chain to the baking fixed section multiple chain; one set of the auxiliary passing assemblies is arranged on the other side of the magnetizing section multiple chain and is used to transfer the circulating disc assembly on the baking fixed section multiple chain to the magnetizing section multiple chain; one set of the auxiliary passing assemblies is arranged on one side of the magnetizing section multiple chain and is used to transfer the circulating disc assembly on the magnetizing section multiple chain to the carrier plate descending assembly.

8. The multiple chain circulating conveyor line for motor magnet assembly production according to claim 7, characterized in that: The auxiliary passing component is a check block pushing unit, and the check block pushing unit includes: a material shifting telescopic cylinder, a mounting plate and a reverse thrust block, the material shifting telescopic cylinder is fixed to the mounting plate and is used to drive the mounting plate to be extended and retracted, the material shifting telescopic cylinder is installed on one side of the production line frame, the reverse thrust block is hingedly connected to the mounting plate, and a coil spring for driving the reverse thrust block to open is also provided between the mounting plate and the reverse thrust block, and a limiting surface for limiting the opening angle of the reverse thrust block is provided on the mounting plate; the front and rear side surfaces of the reverse thrust block are respectively an avoidance action surface and a pushing action surface; the reverse thrust block includes a parallel production line state and a vertical production line state; when the reverse thrust block is in the vertical production line state, the reverse thrust block vertically extends above the upper multiple chain output line body; when the reverse thrust block is in the parallel production line state, the reverse thrust block withdraws from above the upper multiple chain output line body.

9. The multiple chain circulating conveyor line for motor magnet assembly production according to claim 7, characterized in that: The auxiliary passing component is a clamping and transferring robot, and a clamping cover for lifting is respectively provided at both ends of the upper part of the reference block support platform; the clamping and transferring robot includes a retractable fork that cooperates with the clamping cover, and the clamping and transferring robot is used to lift the circulation transport plate assembly and move it to the target position.

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