Transport device for a heat dissipation fan housing and its operation method

Abstract

The present invention discloses a transport device for a heat dissipation fan housing, which includes a driving device, a grasping device installed on the driving device, and a support frame placed on the ground. A workpiece placement table and a mold are provided on the support frame. The grasping device is located above the workpiece placement table. The heat dissipation fan housing is placed on the workpiece placement table. A transport cart is located outside the support frame on the side close to the mold, and the distance between the transport cart and the middle axis of the mold is equal to the distance between the workpiece placement table and the middle axis of the mold. After the left moving plate positions and transports the heat dissipation fan housing to the mold for stamping, the right moving plate transports the stamped heat dissipation fan housing to the transport cart. At the same time, the left moving plate positions and transports the next heat dissipation fan housing to the mold for stamping, so that the stamped heat dissipation fan housings can be continuously and efficiently concentrated on the transport cart, improving the transport efficiency of the heat dissipation fan housing.

Description

Technical Field

[0001] The invention belongs to the technical field of the transportation of the housing of a cooling fan, and particularly relates to a transportation device for the housing of a cooling fan and an operation method thereof. Background Art

[0002] Before the housing of a cooling fan is assembled, it needs to be stamped and formed before being assembled onto the cooling fan. However, since the housing of the cooling fan is thin-sheet-shaped, it is not easy to transport. The existing transportation methods generally rely on manual transportation, resulting in excessive manpower consumption and low transportation efficiency. Summary of the Invention

[0003] In view of the above problems in the prior art, the purpose of the present invention is to provide a transportation device for the housing of a cooling fan and an operation method thereof.

[0004] The present invention provides the following technical solutions:

[0005] A transportation device for the housing of a cooling fan includes a driving device, a grasping device mounted on the driving device, a support frame placed on the ground. A workpiece placement table and a mold are provided on the support frame. The grasping device is located above the workpiece placement table. The housing of the cooling fan is placed on the workpiece placement table. A transportation cart is located outside the support frame on the side close to the mold, and the distance between the transportation cart and the central axis of the mold is equal to the distance between the central axes of the workpiece placement table and the mold.

[0006] Specifically, the driving device includes a single-axis robot II. The grasping device is mounted on the single-axis robot II through a moving seat. The single-axis robot II drives the grasping device to move along the length direction of the support frame. The single-axis robot II is mounted on a single-axis robot I and a linear guide rail. The single-axis robot I and the linear guide rail are parallel to each other and are both perpendicular to the single-axis robot II.

[0007] Specifically, the grasping device includes a mounting plate mounted on the driving device, a limiting plate mounted on one end of the mounting plate through a plurality of guide shafts I. The guide shafts I all pass through a flange I. A left moving plate is mounted on the flange I. The left moving plate is located between the limiting plate and the mounting plate. The left moving plate is connected to the mounting plate through a cylinder. A plurality of suction cups I are mounted on the left moving plate. Circular holes are provided on the limiting plate at positions corresponding to the suction cups I. At the same time, a positioning post is mounted on the limiting plate and corresponds to the position of the through hole on the housing of the cooling fan. A right moving plate is mounted on the other end of the mounting plate. A plurality of suction cups II are mounted on the right moving plate. The linear distance between the central axes of the left moving plate and the right moving plate is equal to the distance between the central axes of the workpiece placement table and the mold.

[0008] Specifically, the workpiece placement table includes a bottom plate installed on the support frame, several second flanges installed on the bottom plate, and the second flanges pass through the support frame. A second guide shaft passes through the second flanges, and the placement table is installed on the second guide shaft. A first spring is sleeved outside the second guide shaft, and the first spring is used to connect the placement table and the second flange. Several grooves are provided on the placement table, and the heat dissipation fan housing is placed in the grooves.

[0009] Specifically, the transport trolley includes a base, a lifting mechanism installed at the middle position of the base, and shock-absorbing wheel assemblies symmetrically installed on both sides of the base. Square holes are provided at the positions of the base corresponding to the shock-absorbing wheel assemblies; several auxiliary wheels are also symmetrically installed on the base, a controller installed on the base, a battery installed on the base through a battery mounting seat, a lidar installed on the base, and a housing covering the outside of the base. A through hole is provided at the position of the housing corresponding to the battery, and the lid is hinged to the housing through a hinge. A handle is provided on the lid, and fans are installed on both sides of the housing.

[0010] Specifically, the lifting mechanism includes a mounting seat installed on the base, a fixed seat installed on the mounting seat, a first gear sleeved outside the fixed seat, a rotating seat installed on the first gear, a lifting seat threadedly connected to the rotating seat, a second gear installed on the lifting seat, and a placing table installed on the second gear. A first main gear meshes with the first gear for transmission, and the first main gear is installed on a first motor. The first motor is installed on the mounting seat through a motor mounting seat. A second main gear meshes with the second gear for transmission, and the second main gear is installed on a second motor. The second motor is installed on the mounting seat through a motor mounting seat.

[0011] Specifically, the shock-absorbing wheel assembly includes a wheel fixing seat installed on the base, third flanges symmetrically installed on the wheel fixing seat, a third guide shaft passing through the third flanges. A limiting pad is installed at one end of the third guide shaft, a moving block is installed at the other end of the third guide shaft, and the moving block is connected to the third flange through a second spring. A wheel installed on a third motor, and the third motor is installed on the moving block through a motor seat.

[0012] Specifically, the auxiliary wheels are casters.

[0013] Specifically, the design of the number of auxiliary wheels should consider the weight that the transport trolley needs to carry during operation, and the following formula needs to be satisfied:

[0014] GM≥E+Z

[0015] Where G is the weight borne by each wheel, E is the self-weight of the transport trolley, and Z is the weight that the transport trolley needs to carry.

[0016] Based on the above device, the present invention also proposes an operation method for a transport device using the heat dissipation fan housing, including the following steps:

[0017] S1, first, the single-axis robot 2 drives the grasping device to the top of the workpiece placement table, and then the single-axis robot 1 drives the grasping device to move downward. When the positioning column is positioned at the position of the through hole, the cylinder is turned on, and the cylinder drives the left moving plate to move downward. The suction cup 1 passes through the circular hole to suck the cooling fan housing, and then the cooling fan housing is sent to the mold through the cooperation of the single-axis robot 2 and the single-axis robot 1;

[0018] S2, after the left movable plate positions and transports the cooling fan housing to the mold for stamping, the right movable plate transports the stamped cooling fan housing to the transport trolley, and at the same time, the left movable plate positions and transports the next cooling fan housing to the mold for stamping;

[0019] S3, repeating the above S1 and S2, when a certain number of cooling fan casings on the transport trolley are gathered, start the transport trolley, then stop S1 and S2 or replace the initial position of the transport trolley with another trolley;

[0020] S4, the controller controls the start-up of motor 3, the laser radar and the fan, and uses the laser radar to identify the QR code landmark on the ground, so as to transport the cooling fan housing to the assembly process;

[0021] S5, turning on motor 1 and motor 2, thereby raising the placing table, making it easier for the staff to take away the cooling fan casing in the placing table.

[0022] The beneficial effects of the present invention are:

[0023] 1. The device can continuously and efficiently place the stamped cooling fan casings on the transport trolley, thereby improving the transportation efficiency of the cooling fan casings (8);

[0024] 2. The transport trolley can absorb the vibration caused by uneven road surface through spring 2 and maintain a certain stability; at the same time, the transport trolley can locate and plan the path according to the QR code landmarks on the ground in the factory, and the outer contour of the transport trolley is flat and smooth, so as to prevent collision with other objects during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a top view of the cooling fan housing;

[0027] Figure 2 is a front view of the present invention;

[0028] Figure 3 is a three-dimensional diagram of the grabbing device of the present invention;

[0029] Figure 4 is the three-dimensional view of the workpiece placement table in the present invention;

[0030] Figure 5 is the three-dimensional view of the transport trolley in the second embodiment of the present invention;

[0031] Figure 6 is the top view of the transport trolley in the second embodiment of the present invention;

[0032] Figure 7 is the internal structure schematic diagram of the transport trolley in the second embodiment of the present invention;

[0033] Figure 8 is the internal structure schematic diagram of the lifting mechanism in the second embodiment of the present invention;

[0034] Figure 9 is the three-dimensional view of the shock-absorbing wheel assembly in the second embodiment of the present invention;

[0035] The labels in the figure are: 1, driving device; 2, grasping device; 3, support frame; 4, transport trolley; 5, mold; 6, workpiece placement table; 7, through hole; 8, heat dissipation fan housing;

[0036] 101, single-axis robot one; 102, linear guide rail; 103, single-axis robot two; 104, moving seat;

[0037] 201, mounting plate; 202, cylinder; 203, left moving plate; 204, limiting plate; 205, suction cup one; 206, positioning column; 207, right moving plate; 208, suction cup two; 209, flange one; 210, guide shaft one;

[0038] 401, housing; 402, lid; 403, hinge; 404, base; 405, battery; 406, fan; 407, controller; 408, lifting mechanism; 409, lidar; 410, shock-absorbing wheel assembly; 411, auxiliary wheel;

[0039] 4081, mounting seat; 4082, fixed seat; 4083, gear one; 4084, rotating seat; 4085, lifting seat; 4086, gear two; 4087, main gear one; 4088, motor one; 4089, motor two; 40810, main gear two; 40811, placing table;

[0040] 4101, motor three; 4102, wheel fixing seat; 4103, wheel; 4104, guide shaft three; 4105, spring two; 4106, moving block; 4107, moving block; 4108, flange three;

[0041] 601. Base plate; 602. Placing table; 603. Groove; 604. First spring; 605. Second guiding shaft; 606. Second flange. Detailed implementation mode

[0042] As Figure 1 shown, a plurality of through holes 7 are provided on the heat dissipation fan housing 8.

[0043] Embodiment 1

[0044] As Figure 2 shown, the present invention provides a transportation device for a heat dissipation fan housing, including a driving device 1, a grasping device 2 installed on the driving device 1, a support frame 3 placed on the ground, a workpiece placing table 6 and a mold 5 placed on the support frame 3. The grasping device 2 is located above the workpiece placing table 6, and the heat dissipation fan housing 8 is placed on the workpiece placing table 6. The support frame 3 is rectangular.

[0045] The driving device 1 includes a single-axis robot two 103. The grasping device 2 is installed on the single-axis robot two 103 through a moving seat 104. The single-axis robot two 103 drives the grasping device 2 to move along the length direction of the support frame 3. The single-axis robot two 103 is installed on a single-axis robot one 101 and a linear guide rail 102. The single-axis robot one 101 and the linear guide rail 102 are parallel to each other and are both perpendicular to the single-axis robot two 103. Thus, the single-axis robot one 101 drives the grasping device 2 to move along the height direction of the support frame 3.

[0046] Please refer to Figure 3 for key reference. The grasping device 2 includes a mounting plate 201 installed on the driving device 1, a limiting plate 204 installed at one end of the mounting plate 201 through a plurality of first guiding shafts 210. The first guiding shafts 210 all pass through a first flange 209. A left moving plate 203 is installed on the first flange 209. The left moving plate 203 is located between the limiting plate 204 and the mounting plate 201. The left moving plate 203 is connected to the mounting plate 201 through a cylinder 202. A plurality of first suction cups 205 are installed on the left moving plate 203. Circular holes are provided at the positions of the limiting plate 204 corresponding to the first suction cups 205. When the cylinder 202 is started, the first suction cups 205 pass through the circular holes to suck the heat dissipation fan housing 8. At the same time, a positioning post 206 is installed on the limiting plate 204, and the positioning post 206 corresponds to the positions of the through holes 7 on the heat dissipation fan housing 8. A right moving plate 207 is installed at the other end of the mounting plate 201. A plurality of second suction cups 208 are installed on the right moving plate 207. The linear distance between the middle axes of the left moving plate 203 and the right moving plate 207 is equal to the distance between the middle axes of the workpiece placing table 6 and the mold 5.

[0047] First, the uniaxial robot two 103 drives the grasping device 2 to reach directly above the workpiece placement table 6. Then, the uniaxial robot one 101 drives the grasping device 2 to move downward. When the positioning post 206 positions to the position of the through hole 7, the air cylinder 202 is activated. The air cylinder 202 drives the left moving plate 203 to move downward, and the suction cup one 205 passes through the circular hole to suck the heat sink fan housing 8.

[0048] The function of the limit plate 204 is to be able to limit the moving distance of the left moving plate 203 and ensure that the suction cup one 205 is within the circular hole when the suction cup one 205 is in a non-operating state, protecting the suction cup one 205 from dust contamination or being touched by non-staff.

[0049] Please refer to Figure 4 , the workpiece placement table 6 includes a bottom plate 601 installed on the support frame 3, several flanges two 606 installed on the bottom plate 601, and the flanges two 606 pass through the support frame 3. The guide shaft two 605 passes through the flanges two 606, and the placement table 602 is installed on the guide shaft two 605. The spring one 604 is sleeved outside the guide shaft two 605, and the spring one 604 is used to connect the placement table 602 and the flanges two 606. Several grooves 603 are provided on the placement table 602, and the heat sink fan housing 8 is placed in the grooves 603.

[0050] The function of the spring one 604 is that when the positioning post 206 positions the through hole 7 and the suction cup one 205 sucks the heat sink fan housing 8, the reaction force of the spring one 604 offsets the pressure of the above components, thus avoiding damage to the heat sink fan housing 8.

[0051] The uniaxial robot two 103, the uniaxial robot one 101, and the air cylinder 202 are communicatively coupled to the total controller.

[0052] The controller is a programmable numerical control system. As the central control system, the controller can realize the program input and operation control of the whole machine, and realize the automation of the operation process. The control system can be used as a system that connects each actuator to move according to the logical trajectory, and controls the actuator to run according to the required operation steps through programming.

[0053] In the transportation device of the first embodiment, the left moving plate 203 in the transportation device positions and transports the heat sink fan housing 8 to the mold 5 for stamping. Then, the right moving plate 207 transports the stamped heat sink fan housing 8 to the next transportation process, and the next transportation process transfers the heat sink fan housing 8 to the assembly process.

[0054] Embodiment Two

[0055] As Figure 1As shown, in addition to the device disclosed in the first embodiment, the transportation device disclosed in the second embodiment further includes a transportation cart 4 located outside the support frame 3 on the side close to the mold 5, and the distance between the transportation cart 4 and the central axis of the mold 5 is equal to the distance between the workpiece placement table 6 and the central axis of the mold 5. The other devices and their installation positions in the second embodiment are the same as those in the first embodiment.

[0056] Therefore, after the left moving plate 203 positions and transports the heat dissipation fan housing 8 to the mold 5 for stamping, the right moving plate 207 transports the stamped heat dissipation fan housing 8 to the transportation cart 4. At the same time, the left moving plate 203 positions and transports the next heat dissipation fan housing 8 to the mold 5 for stamping, so that the stamped heat dissipation fan housings 8 can be continuously and efficiently concentrated on the transportation cart 4, improving the transportation efficiency of the heat dissipation fan housing 8.

[0057] Please refer to Figures 5 - 7 , the transportation cart 4 includes a base 404, a lifting mechanism 408 installed at the middle position of the base 404, shock-absorbing wheel assemblies 410 symmetrically installed on both sides of the base 404. Square holes are provided at the positions of the base 404 corresponding to the shock-absorbing wheel assemblies 410, so as to facilitate the shock-absorbing wheel assemblies 410 to pass through the base 404 to drive the transportation cart 4 to move; a number of auxiliary wheels 411 are also symmetrically installed on the base 404 to improve the load-bearing capacity of the transportation cart 4, a controller 407 installed on the base 404, a battery 405 installed on the base 404 through a battery mounting seat, a lidar 409 installed on the base 404, the lidar 409 is used to identify the two-dimensional code landmark on the ground, and a housing 401 covering the outside of the base 404. A through hole is provided at the position of the housing 401 corresponding to the battery 405 to facilitate the staff to replace the battery 405. A lid 402 is hinged to the housing 401 through a hinge 403 to prevent dust from entering the housing 401. A handle is provided on the lid 402, and fans 406 are installed on both sides of the housing 401 to dissipate heat for the transmission parts inside the housing.

[0058] Please refer to Figure 5 、 6As shown in FIGS. 7 and 8, the lifting mechanism 408 includes a mounting base 4081 mounted on the base 404, a fixed base 4082 mounted on the mounting base 4081, a first gear 4083 sleeved outside the fixed base 4082, a rotating base 4084 mounted on the first gear 4083, a lifting base 4085 threadedly connected to the rotating base 4084, a second gear 4086 mounted on the lifting base 4085, a placing table 40811 mounted on the second gear 4086. The first main gear 4087 meshes with the first gear 4083 for transmission, and the first main gear 4087 is mounted on the first motor 4088. The first motor 4088 is mounted on the mounting base 4081 through a motor mounting base. The second main gear 40810 meshes with the second gear 4086 for transmission, and the second main gear 40810 is mounted on the second motor 4089. The second motor 4089 is mounted on the mounting base 4081 through a motor mounting base.

[0059] Please refer to Figure 9 As shown in FIGS. 9 and 10, the shock-absorbing wheel assembly 410 includes a wheel fixing base 4102 mounted on the base 404, a third flange 4108 symmetrically mounted on the wheel fixing base 4102, a third guide shaft 4104 passing through the third flange 4108. One end of the third guide shaft 4104 is mounted with a limit pad 4106, and the other end of the third guide shaft 4104 is mounted with a moving block 4107. A second spring 4105 is connected between the moving block 4107 and the third flange 4108. A wheel 4103 mounted on the third motor 4101. The third motor 4101 is mounted on the moving block 4107 through a motor base.

[0060] Therefore, when the transport trolley 4 moves to an uneven ground, the vibration of the wheel 4103 will be offset by the reaction force of the second spring 4105, thereby ensuring the stability of the transport trolley 4 itself.

[0061] The transport trolley 4 absorbs the vibration caused by the uneven road surface through the second spring 4105 and maintains a certain positive pressure on the ground to maintain the driving force of the wheel 4103.

[0062] The auxiliary wheel 411 is a caster wheel. At the same time, two-dimensional code landmarks are provided on the ground in the factory for positioning and path planning. The outer contour of the transport trolley 4 is smooth and clean, so as to prevent collision with other objects during movement.

[0063] At the same time, the design of the number of the auxiliary wheels 411 should consider the weight that the transport trolley 4 needs to carry during operation, and the following formula needs to be satisfied:

[0064] GM≥E+Z

[0065] Wherein, G is the weight borne by each wheel, E is the self-weight of the transport trolley 4, and Z is the weight that the transport trolley 4 needs to carry.

[0066] Meanwhile, motor one 4088, motor two 4089, motor three 4101, lidar 409, fan 406, and battery 405 are communicatively coupled to controller 407.

[0067] Based on the above device, Embodiment 2 of the present invention further proposes an operation method for a transportation device using the heat dissipation fan housing described above, including the following steps:

[0068] Step 1: First, the single-axis robot two 103 drives the grasping device 2 to reach directly above the workpiece placement table 6, and then the single-axis robot one 101 drives the grasping device 2 to move downward. When the positioning post 206 locates the position of the through hole 7, the air cylinder 202 is activated. The air cylinder 202 drives the left moving plate 203 to move downward, and the suction cup one 205 passes through the circular hole to suck the heat dissipation fan housing 8. Subsequently, through the cooperation of the single-axis robot two 103 and the single-axis robot one 101, the heat dissipation fan housing 8 is sent to the mold 5.

[0069] Step 2: After the left moving plate 203 positions and transports the heat dissipation fan housing 8 to the mold 5 for stamping, the right moving plate 207 transports the stamped heat dissipation fan housing 8 to the transport cart 4. At the same time, the left moving plate 203 positions and transports the next heat dissipation fan housing 8 to the mold 5 for stamping.

[0070] Step 3: Repeat the above Step 1 and Step 2. When the heat dissipation fan housings 8 on the transport cart 4 accumulate to a certain number, activate the transport cart 4, and then stop Step 1 and Step 2 or replace the initial position of the transport cart 4 with another cart.

[0071] Step 4: The controller 407 controls the activation of motor three 4101, lidar 409, and fan 406. The lidar 409 identifies the QR code landmark on the ground, thereby transporting the heat dissipation fan housing 8 to the assembly process.

[0072] Step 5: Activate motor one 4088 and motor two 4089, thereby raising the storage platform 40811 to facilitate the staff to take away the heat dissipation fan housings 8 in the storage platform 40811.

[0073] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transportation device for a heat dissipation fan housing, comprising a driving device (1), a grasping device (2) installed on the driving device (1), and a support frame (3) placed on the ground. A workpiece placement table (6) and a mold (5) are provided on the support frame (3). The grasping device (2) is located above the workpiece placement table (6), and the heat dissipation fan housing (8) is placed on the workpiece placement table (6). It is characterized in that it further includes a transportation cart (4) located outside the support frame (3) on the side close to the mold (5), and the distance between the transportation cart (4) and the central axis of the mold (5) is equal to the distance between the central axes of the workpiece placement table (6) and the mold (5); The driving device (1) includes a single-axis robot II (103). The grasping device (2) is installed on the single-axis robot II (103) through a moving seat (104). The single-axis robot II (103) drives the grasping device (2) to move along the length direction of the support frame (3). The single-axis robot II (103) is installed on a single-axis robot I (101) and a linear guide rail (102). The single-axis robot I (101) and the linear guide rail (102) are parallel to each other and are both perpendicular to the single-axis robot II (103); The grasping device (2) includes a mounting plate (201) installed on the driving device (1), a limiting plate (204) installed at one end of the mounting plate (201) through a plurality of guide shafts I (210), and the guide shafts I (210) all pass through a flange I (209). A left moving plate (203) is installed on the flange I (209). The left moving plate (203) is located between the limiting plate (204) and the mounting plate (201). The left moving plate (203) is connected to the mounting plate (201) through a cylinder (202). A plurality of suction cups I (205) are installed on the left moving plate (203). Circular holes are provided in the limiting plate (204) at positions corresponding to the suction cups I (205). At the same time, a positioning column (206) is installed on the limiting plate (204), and the positioning column (206) corresponds to the position of a through hole (7) on the heat dissipation fan housing (8). A right moving plate (207) is installed at the other end of the mounting plate (201), and a plurality of suction cups II (208) are installed on the right moving plate (207). The linear distance between the central axes of the left moving plate (203) and the right moving plate (207) is equal to the distance between the central axes of the workpiece placement table (6) and the mold (5); The workpiece placement table (6) includes a bottom plate (601) installed on the support frame (3), a plurality of flanges II (606) installed on the bottom plate (601), and the flanges II (606) pass through the support frame (3). Guide shafts II (605) pass through the flanges II (606). A placement table (602) is installed on the guide shafts II (605). A spring I (604) is sleeved outside the guide shafts II (605), and the spring I (604) is used to connect the placement table (602) and the flanges II (606). A plurality of grooves (603) are provided on the placement table (602), and the heat dissipation fan housing (8) is placed in the grooves (603).

2. The transportation device for the housing of a cooling fan according to claim 1, characterized in that, the transport trolley (4) includes a base (404), a lifting mechanism (408) installed at the middle position of the base (404), shock-absorbing wheel assemblies (410) symmetrically installed on both sides of the base (404), and square holes are provided at the positions of the base (404) corresponding to the shock-absorbing wheel assemblies (410); a number of auxiliary wheels (411) are also symmetrically installed on the base (404), a controller (407) installed on the base (404), a battery (405) installed on the base (404) through a battery mounting seat, a lidar (409) installed on the base (404), and a housing (401) covering the outside of the base (404). Through holes are provided at the positions of the housing (401) corresponding to the battery (405). A lid (402) is hinged to the housing (401) through a hinge (403). A handle is provided on the lid (402), and fans (406) are installed on both sides of the housing (401).

3. The transportation device for the housing of a cooling fan according to claim 2, characterized in that, the lifting mechanism (408) includes a mounting seat (4081) installed on the base (404), a fixed seat (4082) installed on the mounting seat (4081), a first gear (4083) sleeved outside the fixed seat (4082), a rotating seat (4084) installed on the first gear (4083), a lifting seat (4085) threadedly connected to the rotating seat (4084), a second gear (4086) installed on the lifting seat (4085), a placing table (40811) installed on the second gear (4086), a first main gear (4087) meshing and driving with the first gear (4083), and the first main gear (4087) is installed on a first motor (4088). The first motor (4088) is installed on the mounting seat (4081) through a motor mounting seat. A second main gear (40810) meshes and drives with the second gear (4086), and the second main gear (40810) is installed on a second motor (4089). The second motor (4089) is installed on the mounting seat (4081) through a motor mounting seat.

4. The transportation device for the housing of a cooling fan according to claim 3, characterized in that, the shock-absorbing wheel assembly (410) includes a wheel fixing seat (4102) installed on the base (404), a third flange (4108) symmetrically installed on the wheel fixing seat (4102), a third guide shaft (4104) passing through the third flange (4108). A limiting pad (4106) is installed at one end of the third guide shaft (4104), a moving block (4107) is installed at the other end of the third guide shaft (4104), and a second spring (4105) is connected between the moving block (4107) and the third flange (4108). A wheel (4103) installed on a third motor (4101), and the third motor (4101) is installed on the moving block (4107) through a motor seat.

5. The transport device for the housing of a cooling fan according to claim 2, characterized in that, the auxiliary wheel (411) is a caster wheel.

6. The transport device for the housing of a cooling fan according to claim 5, characterized in that, when designing the number of auxiliary wheels (411), the weight to be borne during the operation of the transport trolley (4) should be considered, and the following formula should be satisfied: GM≥E+Z where G is the weight borne by each wheel, E is the self-weight of the transport trolley (4), and Z is the weight to be borne by the transport trolley (4).

7. An operation method of using the transport device for the housing of a cooling fan according to claim 4, characterized in that, it includes the following steps: S1. First, the single-axis robot two (103) drives the grasping device (2) to reach directly above the workpiece placement table (6), and then the single-axis robot one (101) drives the grasping device (2) to move downwards. When the positioning post (206) locates the position of the through hole (7), the air cylinder (202) is activated. The air cylinder (202) drives the left moving plate (203) to move downwards, and the first suction cup (205) passes through the circular hole to suck the housing of the cooling fan (8). Subsequently, through the cooperation of the single-axis robot two (103) and the single-axis robot one (101), the housing of the cooling fan (8) is sent onto the mold (5); S2. When the left moving plate (203) positions and transports the housing of the cooling fan (8) onto the mold (5) for stamping, the right moving plate (207) transports the stamped housing of the cooling fan (8) onto the transport trolley (4), and at the same time, the left moving plate (203) positions and transports the next housing of the cooling fan (8) onto the mold (5) for stamping; S3. Repeat the above S1 and S2. When the housings of the cooling fans (8) on the transport trolley (4) accumulate to a certain number, the transport trolley (4) is activated, and then S1 and S2 are stopped or the initial position of the transport trolley (4) is replaced by another trolley; S4. The controller (407) controls the activation of the third motor (4101), the lidar (409), and the fan (406), and the lidar (409) identifies the QR code landmark on the ground, thereby transporting the housing of the cooling fan (8) to the assembly process; S5. The first motor (4088) and the second motor (4089) are activated, thereby raising the placing table (40811) to facilitate the staff to take away the housing of the cooling fan (8) in the placing table (40811).

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