A pressing assembly equipment and a stamping welding production line

Abstract

The present invention provides a pressing assembly device and a stamping and welding production line, which relate to the technical field of caster production equipment, wherein the pressing assembly device comprises a conveying track, a material shifting component, and a first feeding component, a second feeding component, a third feeding component, a fourth feeding component, a fifth feeding component and a pressing component which are sequentially arranged; the conveying track is sequentially provided with a conveying start end, a first feeding position, a second feeding position, a third feeding position, a fourth feeding position, a fifth feeding position, a pre-pressing position and a conveying end; the pressing component is used to press the limit plate, the second bearing, the rotating plate and the first bearing onto the mounting plate. The above-mentioned pressing assembly device, by using each feeding component to respectively fit the first bearing, the rotating plate, the second bearing and the limit plate onto the positioning pin shaft of the mounting plate, uses the pressing component to press each matching gap, so that they are tightly matched and assembled into a rotating seat, thereby reducing the assembly time of the universal wheel and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of caster production equipment, and in particular to a pressing assembly equipment and a stamping and welding production line. Background Art

[0002] Among all kinds of universal wheels, there is a universal wheel with double bearings. This universal wheel has two bearings installed on the steering shaft, one is a thrust bearing that bears axial loads, and the other is a radial bearing that bears radial loads. For example, the double-bearing universal wheel disclosed in the Chinese utility model patent with publication number CN201951171U includes an upright steering shaft, the upper part of the steering shaft is covered with a radial bearing, and the lower part of the steering shaft is covered with a thrust bearing. The radial bearing and the thrust bearing are located in a bearing mounting hole of a bearing seat, and the bearing mounting hole is a stepped hole, and the upper end face of the thrust bearing is against the first step of the stepped hole. However, this universal wheel structure is time-consuming and laborious in the process of assembling the two bearings on the steering shaft, and the assembly efficiency is low.

[0003] Therefore, it is urgent to improve the universal wheel structure and develop corresponding assembly equipment to improve assembly efficiency and reduce production costs. Summary of the invention

[0004] Based on this, in order to solve the above problems, the present invention provides a press-fit assembly equipment and a stamping and welding production line, and its specific technical solutions are as follows:

[0005] On the one hand, a pressing assembly device comprises a conveying track, a material moving component, and a first feeding component, a second feeding component, a third feeding component, a fourth feeding component, a fifth feeding component and a pressing component arranged in sequence; the conveying track is provided with a conveying starting end, a first feeding position, a second feeding position, a third feeding position, a fourth feeding position, a fifth feeding position, a pre-pressing position and a conveying end in sequence; the first feeding component is used to convey a mounting plate with a positioning pin to the conveying starting end, the second feeding component is used to place a first bearing on the positioning pin of the mounting plate, the third feeding component is used to place a rotating plate on the first bearing, the fourth feeding component is used to place the second bearing on the rotating plate, and the fifth feeding component is used to for placing the limit plate on the second bearing; the material moving component includes two groups of material moving components, the material moving components include a material moving seat, four material moving fixtures arranged at intervals on the material moving seat, a lifting and lowering material moving unit driving the material moving seat to perform lifting and lowering movements, a conveying and lowering material moving unit driving the lifting and lowering material moving unit to move along the conveying direction of the conveying track, and a horizontal material moving unit driving the conveying and lowering material moving unit to move perpendicular to the conveying direction of the conveying track; the first loading position, the second loading position, the third loading position, the fourth loading position, the fifth loading position and the pre-pressing position are arranged at intervals of a first distance value, and the interval distance value of adjacent material moving fixtures is equal to the first distance value; the pressing component is used to press the limit plate, the second bearing, the rotating plate and the first bearing onto the mounting plate.

[0006] The above-mentioned pressing and assembly equipment arranges various feeding components on both sides of the conveying track, and each feeding component respectively fits the first bearing, the rotating plate, the second bearing, and the limit plate onto the locating pin shaft of the mounting plate in sequence, and uses the pressing components to press the various matching gaps to make them fit tightly, thereby assembling a rotating seat, thereby reducing the assembly time of the universal wheel and improving production efficiency; at the same time, through the four material transfer jigs arranged at intervals on the material transfer seat, the four material transfer jigs are used to move the workpieces on different stations to the next station respectively, the structure is simple and reliable, and it is convenient to improve production efficiency.

[0007] Furthermore, the conveying track includes a track body and a limit mounting block arranged on the track body to form a limit movement gap, and the limit movement gap is adapted to the thickness of the mounting plate; the conveying end is provided with a material unloading inclined rail.

[0008] Furthermore, the pressing component includes a pressing bracket, a lower pressing unit arranged at the bottom of the pressing bracket, and an upper pressing unit arranged at the top of the pressing bracket; the pre-pressing position is provided with a pressing groove; the lower pressing unit includes a lower pressing cylinder installed on the pressing bracket, and a lower pressing seat arranged at the output end of the lower pressing cylinder; the upper pressing unit includes an upper pressing cylinder installed on the pressing bracket, and an upper pressing seat arranged at the output end of the upper pressing cylinder.

[0009] Furthermore, the lower pressing seat is provided with a first lower pressing block and a second lower pressing block, and the upper pressing seat is provided with a first upper pressing block and a second upper pressing block; the lower pressing cylinder drives the lower pressing seat to press upward, and the upper pressing cylinder drives the upper pressing seat to press downward, and the first lower pressing block and the first upper pressing block form a first pressing space; the second lower pressing block and the second upper pressing block form a second pressing space; the first pressing space and the second pressing space are arranged at a first distance value along the conveying direction of the conveying track; the pressing height value of the first pressing space is greater than the pressing height value of the second pressing space.

[0010] Furthermore, the second loading component includes a second vibration plate, a second loading track arranged at the output port of the second vibration plate, and a second loading assembly, wherein the second loading track is provided with a second loading port; the second vibration plate transports the first bearing to the second loading track through its own vibration, and the second loading assembly moves the first bearing at the second loading port to the second loading position.

[0011] Furthermore, the second loading assembly includes a second loading seat, a second extending unit arranged on the second loading seat, a second lifting unit arranged on the second extending unit, and a second grasping unit arranged on the second lifting unit; the second grasping unit is a clamping robot or a suction cup unit.

[0012] Furthermore, the second extension unit includes a second driving cylinder, a triangular swing block, a swing connecting rod, and an extension seat slidably connected to the second loading seat; the triangular swing block is provided with a first input part, a second hinged part and a third output part; the fixed end of the second driving cylinder is hinged to the second loading seat, and the output end is hinged to the first input part, the second hinged part is connected to the second loading seat, and the swing connecting rod connects the third output part and the extension seat.

[0013] On the other hand, a stamping and welding production line includes a stamping device, a welding device, a transfer device and a press-fit assembly device; the stamping device is used to stamp the assembled rotating seat; the welding device is used to weld the rotating seat; the transfer device includes a first transfer robot and a second transfer robot, the first transfer robot is used to transfer the rotating seat from the conveying end of the conveying track to the stamping device, and the second transfer robot is used to transfer the rotating seat from the stamping device to the welding device.

[0014] Furthermore, the stamping device includes a stamping frame and an upper stamping component and a lower stamping component arranged on the stamping frame, and a stamping space is formed between the upper stamping component and the lower stamping component; the upper stamping component includes an upper die and a second driving cylinder for driving the upper die to move downward, and the lower stamping component includes a lower die and a first driving cylinder for driving the lower die to move upward, and the upper die and the lower die cooperate to form a fixed stamping groove that adapts to the rotating seat.

[0015] Furthermore, the welding device includes a welding robot and a platform component, the platform component includes a welding base, a rotating platform, a rotating drive component that drives the rotating platform to rotate relative to the welding base, and a welding fixture arranged on the rotating platform; the welding robot is used to perform welding on the rotating seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 is a structural cross-sectional view of a rotating seat according to an embodiment of the present invention;

[0018] Figure 2 is a structural exploded view of a novel universal wheel according to an embodiment of the present invention;

[0019] Figure 3 The structure of the press-fit assembly device according to one embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 4 The structure of the press-fit assembly device according to one embodiment of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 5 is a partial cross-sectional view of a press-fit assembly device according to an embodiment of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a material transfer assembly according to an embodiment of the present invention;

[0023] Figure 7 is a schematic structural diagram of a pressing component according to an embodiment of the present invention;

[0024] Figure 8 is a structural schematic diagram of the second feeding assembly according to an embodiment of the present invention;

[0025] Fig. 9 It is a structural schematic diagram of a stamping and welding production line according to an embodiment of the present invention;

[0026] Fig.10 is a schematic structural diagram of a punching device according to an embodiment of the present invention;

[0027] Fig.11 It is a structural schematic diagram of a welding device according to an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 100, rotating seat; 101, mounting plate; 102, positioning pin; 103, first bearing; 104, rotating plate; 105, second bearing; 106, limiting plate;

[0030] 200, wheel frame;

[0031] 1. Conveying track; 2. Material moving part; 3. First material loading part; 4. Second material loading part; 31. Third material loading part; 32. Fourth material loading part; 33. Fifth material loading part; 5. Punching device; 6. Welding device; 7. Transfer device; 8. Pressing part; 9. Pressing assembly equipment;

[0032] 11. Track body; 12. Limit mounting block;

[0033] 21. Material transfer assembly; 22. Material transfer seat; 23. Material transfer fixture; 24. Lifting material transfer unit; 25. Conveying material transfer unit; 26. Horizontal material transfer unit;

[0034] 41. second vibration plate; 42. second feeding track; 43. second feeding assembly;

[0035] 431, second loading seat; 432, second extending unit; 433, second lifting unit; 434, second grabbing unit;

[0036] 435, second driving cylinder; 436, triangular swing block; 437, swing connecting rod; 438, extending seat;

[0037] 51. Stamping machine frame; 52. Upper stamping component; 53. Lower stamping component;

[0038] 521, upper die; 522, second drive cylinder;

[0039] 531, lower die; 532, first drive cylinder;

[0040] 61. Welding manipulator; 62. Platform components;

[0041] 621. welding base; 622. rotating platform; 623. rotating driving component; 624. welding fixture;

[0042] 71. First transfer robot; 72. Second transfer robot;

[0043] 81. Pressing bracket; 82. Lower pressing unit; 83. Upper pressing unit;

[0044] 821, lower pressing cylinder; 822, lower pressing seat; 823, first lower pressing block; 824, second lower pressing block;

[0045] 831, upper pressing cylinder; 832, upper pressing seat; 833, first upper pressing block; 834, second upper pressing block. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0050] On the one hand, if Figure 3 and Figure 4 , Figure 5 , Figure 6As shown, a pressing assembly device in one embodiment of the present invention comprises a conveying track 1, a material moving component 2, and a first feeding component 3, a second feeding component 4, a third feeding component 31, a fourth feeding component 32, a fifth feeding component 33 and a pressing component 8 which are arranged in sequence; the conveying track 1 is provided with a conveying start end, a first feeding position, a second feeding position, a third feeding position, a fourth feeding position, a fifth feeding position, a pre-pressing position and a conveying end in sequence; the first feeding component 3 is used to convey the mounting plate 101 with the positioning pin 102 to the conveying start end, the second feeding component 4 is used to place the first bearing 103 on the positioning pin 102 of the mounting plate 101, the third feeding component 31 is used to place the rotating plate 104 on the first bearing 103, the fourth feeding component 32 is used to place the second bearing 105 on the rotating plate 104, and the fifth feeding component 33 is used to place the second bearing 106 on the rotating plate 106. 3 is used to place the limit plate 106 on the second bearing 105; the material moving component 2 includes two groups of material moving components 21, the material moving component 21 includes a material moving seat 22, four material moving fixtures 23 arranged at intervals on the material moving seat 22, a lifting material moving unit 24 driving the material moving seat 22 to move up and down, a conveying material moving unit 25 driving the lifting material moving unit 24 to move along the conveying direction of the conveying track 1, and a horizontal material moving unit 26 driving the conveying material moving unit 25 to move perpendicular to the conveying direction of the conveying track 1; the first material loading position, the second material loading position, the third material loading position, the fourth material loading position, the fifth material loading position and the pre-pressing position are arranged at intervals of a first distance value, and the interval distance value of adjacent material moving fixtures 23 is equal to the first distance value; the pressing component 8 is used to press the limit plate 106, the second bearing 105, the rotating plate 104, and the first bearing 103 onto the mounting plate 101.

[0051] like Figure 1 and Figure 2 As shown, by improving the structure and optimizing the process of the universal wheel, the rotating seat 100 is decomposed into the mounting plate 101 with the positioning pin shaft 102, the first bearing 103, the rotating plate 104, the second bearing 105, the limiting plate 106 and other parts, and the first bearing 103, the rotating plate 104, the second bearing 105, and the limiting plate 106 are sequentially fitted onto the positioning pin shaft 102 to assemble the rotating seat 100, and then fixedly connected with the wheel frame 200 by welding process to assemble a new universal wheel. This universal wheel has a simple structure, strong continuous operability in the actual production process, and is convenient to reduce assembly time.

[0052] The above-mentioned pressing and assembling equipment arranges each feeding component on both sides of the conveying track 1, and each feeding component respectively fits the first bearing 103, the rotating plate 104, the second bearing 105, and the limit plate 106 onto the positioning pin 102 of the mounting plate 101 in sequence, and uses the pressing component 8 to press the various matching gaps to make them fit tightly, thereby assembling into a rotating seat 100, thereby reducing the assembly time of the universal wheel and improving production efficiency; at the same time, by using four material transfer fixtures 23 arranged at intervals on the material transfer seat 22, the four material transfer fixtures 23 are used to move the workpieces on different stations to the next station respectively, the structure is simple and reliable, and it is convenient to improve production efficiency.

[0053] In one embodiment, the positioning pin 102 is fixedly connected to the mounting plate 101 by spot welding. In this way, the positioning pin 102 is prevented from falling off from the mounting plate 101 during the movement.

[0054] In one embodiment, the conveying track 1 includes a track body 11 and a limit mounting block 12 disposed on the track body 11, forming a limit moving gap, and the limit moving gap is adapted to the plate thickness of the mounting plate 101; a material unloading inclined rail is provided at the conveying end. Specifically, the track body 11 is provided with a shallow U-shaped groove, the first surface of the mounting plate 101 is attached to the upper surface of the shallow U-shaped groove, and the limit mounting block 12 limits the second surface of the mounting plate 101, so that the mounting plate 101 moves on the conveying track 1.

[0055] like Figure 4 and Figure 7 As shown, in one embodiment, the pressing component 8 includes a pressing bracket 81, a lower pressing unit 82 arranged at the bottom of the pressing bracket 81, and an upper pressing unit 83 arranged at the top of the pressing bracket 81; a pressing slot is provided at the pre-pressing position; the lower pressing unit 82 includes a lower pressing cylinder 821 installed on the pressing bracket 81, and a lower pressing seat 822 arranged at the output end of the lower pressing cylinder 821; the upper pressing unit 83 includes an upper pressing cylinder 831 installed on the pressing bracket 81, and an upper pressing seat 832 arranged at the output end of the upper pressing cylinder 831. In this way, when the first workpiece moves to the pre-pressing position, since the two sides of the mounting plate 101 are confined in the limit movement gap, the first surface of the mounting plate 101 is in contact with the support; the lower pressing cylinder 821 drives the lower pressing seat 822 to pass through from under the pressing groove to contact with the first surface of the mounting plate 101, and the upper pressing cylinder 831 drives the upper pressing seat 832 to press against the limit plate 106, so that the limit plate 106 presses the second bearing 105 and the rotating plate 104 to fit tightly.

[0056] In one embodiment, the lower pressing seat 822 is provided with a first lower pressing block 823 and a second lower pressing block 824, and the upper pressing seat 832 is provided with a first upper pressing block 833 and a second upper pressing block 834; the lower pressing cylinder 821 drives the lower pressing seat 822 to press upward, and the upper pressing cylinder 831 drives the upper pressing seat 832 to press downward, and the first lower pressing block 823 and the first upper pressing block 833 form a first pressing space; the second lower pressing block 824 and the second upper pressing block 834 form a second pressing space; the first pressing space and the second pressing space are arranged at a first distance value along the conveying direction of the conveying track 1; the pressing height value of the first pressing space is greater than the pressing height value of the second pressing space. In this way, when the first workpiece reaches the first pressing space, the first lower pressing block 823 and the first upper pressing block 833 perform the first pressing action on the first workpiece, and then, the lower pressing cylinder 821 and the upper pressing cylinder 831 are reset, and the material moving assembly 21 moves the first workpiece to the second pressing space, and the second lower pressing block 824 and the second upper pressing block 834 perform the second pressing action on the first workpiece; at the same time, the pressing height between the first pressing action and the second pressing action is used to achieve gradual pressing, so as to avoid the deviation of the pressing direction caused by the excessive pressing size at one time, which leads to the matching deviation.

[0057] In one embodiment, the second loading component 4 includes a second vibration plate 41, a second loading track 42 arranged at the output port of the second vibration plate 41, and a second loading assembly 43, wherein the second loading track 42 is provided with a second loading port; the second vibration plate 41 transports the first bearing 103 to the second loading track 42 by its own vibration, and the second loading assembly 43 moves the first bearing 103 at the second loading port to the second loading position. Specifically, the structures of the third loading component 31, the fourth loading component 32, and the fifth loading component 33 are similar to those of the second loading component 4.

[0058] like Figure 8 As shown, in one embodiment, the second loading assembly 43 includes a second loading seat 431, a second extending unit 432 disposed on the second loading seat 431, a second lifting unit 433 disposed on the second extending unit 432, and a second grabbing unit 434 disposed on the second lifting unit 433; the second grabbing unit 434 is a clamping manipulator or a suction cup unit. In this way, the first bearing 103 is grabbed by the second grabbing unit 434, the second lifting unit 433 drives the second grabbing unit 434 to lift, the second extending unit 432 drives the second lifting unit 433 to extend relative to the second loading seat 431, the second grabbing unit 434 moves to the top of the second loading position with the extending action, the second lifting unit 433 drives the second grabbing unit 434 to descend, and the first bearing 103 is placed on the positioning pin 102 of the mounting plate 101.

[0059] In one embodiment, the second extension unit 432 includes a second driving cylinder 435, a triangular pendulum block 436, a swing link 437, and an extension seat 438 slidably connected to the second loading seat 431; the triangular pendulum block 436 is provided with a first input portion, a second hinge portion, and a third output portion; the fixed end of the second driving cylinder 435 is hinged to the second loading seat 431, the output end is hinged to the first input portion, the second hinge portion is connected to the second loading seat 431, and the swing link 437 connects the third output portion and the extension seat 438. In this way, the second driving cylinder 435 drives the triangular pendulum block 436 to swing, and the swing link 437 swings and drives the extension seat 438 to slide relative to the second loading seat 431, thereby realizing the extension action of the extension seat 438.

[0060] The specific working principle of the press-fit assembly equipment is as follows:

[0061] The mounting plate 101 with the positioning pin 102 is conveyed to the conveying starting end by the first loading component 3, and the first workpiece is pushed from the conveying starting end to the first loading position by continuously conveying the workpiece, the shifting component 21 moves the first workpiece from the first loading position to the second loading position, the second loading component 4 places the first bearing 103 on the positioning pin 102 of the mounting plate 101, the shifting component 21 moves the first workpiece from the second loading position to the third loading position, the third loading component 31 places the rotating plate 104 on the first bearing 103, and the shifting component 21 The first workpiece moves from the third loading position to the fourth loading position, the fourth loading component 32 places the second bearing 105 on the rotating plate 104, the material moving assembly 21 moves the first workpiece from the fourth loading position to the fifth loading position, the fifth loading component 33 places the limit plate 106 on the second bearing 105, the material moving assembly 21 moves the first workpiece from the fifth loading position to the pre-pressing position, and the pressing component 8 presses the limit plate 106, the second bearing 105, the rotating plate 104, and the first bearing 103 onto the mounting plate 101, thereby forming a rotating seat 100.

[0062] The first workpiece and the second workpiece are only used to represent the order of the parts to be assembled at different workstations, that is, at different workstations, the actual structures of the first workpiece and the second workpiece are different along the loading actions of each loading component. Figure 1As shown in the structure, specifically: in the process of being sent from the conveying starting end to the first loading position, the first workpiece is the mounting plate 101 with the positioning pin 102; in the process of moving from the second loading position to the third loading position, the first workpiece includes the mounting plate 101 with the positioning pin 102, and the first bearing 103, and the first bearing 103 is sleeved on the positioning pin 102; in the process of moving from the third loading position to the fourth loading position, the first workpiece includes the mounting plate 101 with the positioning pin 102, the first bearing 103, and the rotating plate 104, and the rotating plate 104 and the first bearing 103 are both sleeved on the positioning pin 102; In the process of moving the material level to the fifth loading position, the first workpiece includes a mounting plate 101 with a positioning pin 102, a first bearing 103, a rotating plate 104, and a second bearing 105, and the second bearing 105, the rotating plate 104, and the first bearing 103 are all sleeved on the positioning pin 102; in the process of moving from the fifth loading position to the pre-pressing position, the first workpiece includes a mounting plate 101 with a positioning pin 102, a first bearing 103, a rotating plate 104, a second bearing 105, and a limiting plate 106, and the limiting plate 106, the second bearing 105, the rotating plate 104, and the first bearing 103 are all sleeved on the positioning pin 102.

[0063] On the one hand, if Fig. 9 and Fig.10 , Fig.11 As shown, a stamping and welding production line in one embodiment of the present invention includes a stamping device 5, a welding device 6, a transfer device 7 and a press-fit assembly device 9; the stamping device 5 is used to stamp the assembled rotating seat 100; the welding device 6 is used to weld the rotating seat 100; the transfer device 7 includes a first transfer manipulator 71 and a second transfer manipulator 72, the first transfer manipulator 71 is used to transfer the rotating seat 100 from the conveying end of the conveying track 1 to the stamping device 5, and the second transfer manipulator 72 is used to transfer the rotating seat 100 from the stamping device 5 to the welding device 6. Specifically, the stamping action is to stamp and deform the upper end of the positioning pin shaft 102, that is, the end close to the limit plate 106, so as to limit the limit plate 106 and fix the limit plate 106 on the mounting plate 101.

[0064] In one embodiment, the punching device 5 includes a punching frame 51 and an upper punching part 52 and a lower punching part 53 arranged on the punching frame 51, and a punching space is formed between the upper punching part 52 and the lower punching part 53; the upper punching part 52 includes an upper die 521 and a second driving cylinder 522 driving the upper die 521 to move downward, and the lower punching part 53 includes a lower die 531 and a first driving cylinder 532 driving the lower die 531 to move upward, and the upper die 521 and the lower die 531 cooperate to form a fixed punching groove adapted to the rotating seat 100. Specifically, the lower die 531 is provided with a supporting groove adapted to the bottom of the positioning pin shaft 102 and a supporting surface supporting the mounting plate 101, and the upper die 521 is provided with a molding groove adapted to the top of the positioning pin shaft 102. In this way, the first driving cylinder 532 drives the lower die 531 to move upward, the lower die 531 touches the positioning pin 102 and supports the entire rotating seat 100, and the second driving cylinder 522 drives the upper die 521 to move downward, and the molding groove of the upper die 521 punches the top of the positioning pin 102 and deforms the top of the positioning pin 102.

[0065] In one embodiment, the positioning pin 102 is a hollow pin, and the upper die 521 is provided with a molded pin adapted to the position of the hollow pin. Thus, when the molded pin is inserted into the hollow cavity of the hollow pin, the molded pin causes the hollow pin to deform outward, so that the outer wall of the hollow pin is in close contact with the first bearing 103, achieving the designed matching tolerance value.

[0066] In one embodiment, the welding device 6 includes a welding manipulator 61 and a platform component 62, the platform component 62 includes a welding base 621, a rotating platform 622, a rotating driving component 623 driving the rotating platform 622 to rotate relative to the welding base 621, and a welding fixture 624 disposed on the rotating platform 622; the welding manipulator is used to perform welding on the rotating seat 100. Specifically, as Figure 2 As shown, the rotating plate 104 includes a plate body and a welding circular edge arranged on the plate body, and the wheel frame 200 is provided with a welding circular groove adapted to the welding circular edge. In this way, the wheel frame 200 is fixed on the rotating platform 622, the rotating seat 100 is assembled to the wheel frame 200 and clamped and fixed by the welding fixture 624, the welding manipulator 61 is used to align the weld, and the rotating platform 622 is driven to rotate relative to the welding base 621 by the rotating driving component 623, thereby completing the welding action.

[0067] In one embodiment, the welding device 6 further includes a welding chamber provided with a welding entrance, and a protective component provided on the welding chamber; the protective component includes a safety door, a door driving assembly driving the safety door to open and close the welding entrance, and a safety grating provided at the welding entrance. Thus, when the safety grating detects that there is an object at the welding entrance, the welding manipulator 61 and the platform component 62 do not work, thereby ensuring the safety of the welding work.

[0068] The specific working principle of the stamping and welding production line is as follows:

[0069] The pressing assembly equipment 9 sets various feeding components on both sides of the conveying track 1, and each feeding component respectively fits the first bearing 103, the rotating plate 104, the second bearing 105, and the limit plate 106 onto the positioning pin 102 of the mounting plate 101 in sequence, and uses the pressing component 8 to press the various matching gaps to make them fit tightly, thereby assembling the rotating seat 100; the first transfer robot 71 transfers the rotating seat 100 from the conveying end of the conveying track 1 to the stamping space of the stamping device 5, and the stamping device 5 performs a stamping action on the rotating seat 100, thereby deforming the top of the positioning pin 102, and the limit plate 106, the second bearing 105, and the rotating plate 1 04. The first bearing 103 is completely fixed to the mounting plate 101. During this process, the first transfer robot 71 can release the rotating seat 100 or continue to clamp the rotating seat 100; the third transfer robot transports the wheel frame 200 to the rotating platform 622 of the welding device 6, and the second transfer robot 72 clamps the rotating seat 100 in the stamping space, assembles the rotating seat 100 to the wheel frame 200 on the rotating platform 622, and clamps and fixes it with the welding fixture 624, aligns the weld with the welding robot 61, and uses the rotating drive component 623 to drive the rotating platform 622 to rotate relative to the welding base 621, thereby completing the welding action.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A press-fit assembly device, characterized in that: It includes a conveying track, a material moving component, and a first material loading component, a second material loading component, a third material loading component, a fourth material loading component, a fifth material loading component and a pressing component which are arranged in sequence; The conveying track is provided with a conveying start end, a first loading position, a second loading position, a third loading position, a fourth loading position, a fifth loading position, a pre-pressing position and a conveying end in sequence; The first feeding component is used to convey the mounting plate with the positioning pin to the conveying starting end, the second feeding component is used to place the first bearing on the positioning pin of the mounting plate, the third feeding component is used to place the rotating plate on the first bearing, the fourth feeding component is used to place the second bearing on the rotating plate, and the fifth feeding component is used to place the limit plate on the second bearing; The material moving part includes two groups of material moving components, and the material moving components include a material moving seat, four material moving jigs spaced apart on the material moving seat, a lifting material moving unit driving the material moving seat to move up and down, a conveying material moving unit driving the lifting material moving unit to move along the conveying direction of the conveying track, and a horizontal material moving unit driving the conveying material moving unit to move perpendicularly to the conveying direction of the conveying track; The first loading position, the second loading position, the third loading position, the fourth loading position, the fifth loading position and the pre-pressing position are arranged at intervals of a first distance value, and the interval distance value of adjacent material transfer jigs is equal to the first distance value; The pressing component is used to press the limit plate, the second bearing, the rotating plate, and the first bearing onto the mounting plate; The conveying track comprises a track body and a limit installation block arranged on the track body, forming a limit movement gap, and the limit movement gap is adapted to the thickness of the installation plate; The conveying end is provided with a material unloading inclined rail; The pressing component includes a pressing bracket, a lower pressing unit arranged at the bottom of the pressing bracket, and an upper pressing unit arranged at the top of the pressing bracket; The pre-pressing position is provided with a pressing slot; The lower pressing unit comprises a lower pressing cylinder mounted on the pressing bracket, and a lower pressing seat arranged at the output end of the lower pressing cylinder; The upper pressing unit comprises an upper pressing cylinder mounted on a pressing bracket, and an upper pressing seat arranged at an output end of the upper pressing cylinder; The lower pressing seat is provided with a first lower pressing block and a second lower pressing block, and the upper pressing seat is provided with a first upper pressing block and a second upper pressing block; The lower pressing cylinder drives the lower pressing seat to press upward, and the upper pressing cylinder drives the upper pressing seat to press downward. The first lower pressing block and the first upper pressing block form a first pressing space; The second lower pressing block and the second upper pressing block form a second pressing space; The first pressing space and the second pressing space are arranged at a first distance value along the conveying direction of the conveying track; The pressing height value of the first pressing space is greater than the pressing height value of the second pressing space.

2. The press-fit assembly device according to claim 1, characterized in that: The second feeding component comprises a second vibration plate, a second feeding track arranged at the output port of the second vibration plate, and a second feeding assembly, wherein the second feeding track is provided with a second feeding port; The second vibration plate transports the first bearing to the second loading track through its own vibration, and the second loading assembly moves the first bearing at the second loading port to the second loading position.

3. The press-fit assembly device according to claim 2, characterized in that: The second loading assembly includes a second loading seat, a second extending unit disposed on the second loading seat, a second lifting unit disposed on the second extending unit, and a second grabbing unit disposed on the second lifting unit; The second grasping unit is a clamping robot or a suction cup unit.

4. The press-fit assembly device according to claim 3, characterized in that: The second extension unit includes a second driving cylinder, a triangular swing block, a swing connecting rod, and an extension seat slidably connected to the second loading seat; The triangular pendulum block is provided with a first input portion, a second hinge portion and a third output portion; The fixed end of the second driving cylinder is hinged to the second loading seat, and the output end is hinged to the first input part. The second hinged part is connected to the second loading seat, and the swing connecting rod is connected to the third output part and the extending seat.

5. A stamping and welding production line, characterized in that: It comprises a stamping device, a welding device, a transfer device and a press-fit assembly device as claimed in any one of claims 1 to 4; The punching device is used to perform a punching action on the assembled rotating seat; The welding device is used to weld the rotating seat; The transfer device includes a first transfer robot and a second transfer robot. The first transfer robot is used to transfer the rotating seat from the conveying end of the conveying track to the stamping device, and the second transfer robot is used to transfer the rotating seat from the stamping device to the welding device.

6. The stamping and welding production line according to claim 5, characterized in that: The punching device comprises a punching frame, and an upper punching component and a lower punching component arranged on the punching frame, wherein a punching space is formed between the upper punching component and the lower punching component; The upper punching component includes an upper punch and a second driving cylinder driving the upper punch to move downward, and the lower punching component includes a lower punch and a first driving cylinder driving the lower punch to move upward. The upper punch and the lower punch cooperate to form a fixed punching groove adapted to the rotating seat.

7. The stamping and welding production line according to claim 6, characterized in that: The welding device comprises a welding manipulator and a platform component, wherein the platform component comprises a welding base, a rotating platform, a rotating driving component for driving the rotating platform to rotate relative to the welding base, and a welding fixture arranged on the rotating platform; The welding manipulator is used to perform welding action on the rotating seat.

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