Combined press-fitting device for computer cooling fan

Abstract

The invention discloses a computer cooling fan combined press-fitting device, and relates to the technical field of electronic equipment assembly.The computer cooling fan combined press-fitting device comprises a base, a support is fixedly connected to the upper surface of the base, and a tester is fixedly connected to the upper surface of the support; a press-fitting assembly for press-fitting a cooling fan part is arranged in the tester, a press-fitting base for preventing a cooling fan assembly is arranged on the upper surface of the base, and a clamping block for fixing a cooling fan is arranged on the upper surface of the press-fitting base. A connecting pressing rod for carrying out a pull-out force test on the press-mounted cooling fan is arranged in the press-mounting base, when the fulcrum shaft is not clamped with the rotor due to deviation or poor press-mounting effect, the guide block slides upwards in the vertical part of the guide groove under the driving of the inclined plane shaft, and then the fulcrum shaft is driven to be separated from the interior of the rotor, so that the cooling fan is subjected to pull-out force test. Therefore, the purpose of testing the pulling-out force of the cooling fan after press fitting is completed is achieved.

Description

Technical Field

[0001] This invention relates to the field of electronic device assembly technology, specifically to a computer cooling fan assembly pressing device. Background Technology

[0002] A cooling fan assembly press-fit device is a specialized piece of equipment used for the efficient and precise assembly of cooling fans and heat sinks. Its function is to use automated or semi-automated mechanical structures to tightly press the fan and heat sink together, ensuring uniform force on the contact surfaces, eliminating assembly gaps, and thus improving the thermal conductivity and structural stability of the cooling module. This device typically features pressure control, position calibration, and error prevention functions, avoiding tilting, deformation, or component damage caused by manual operation, significantly improving production consistency, and is suitable for the rapid assembly of cooling modules in large-scale PC or electronic device manufacturing.

[0003] The working process of a computer cooling fan assembly press-fitting device typically includes three key stages: positioning, press-fitting, and testing. Manual or robotic arms place the heat sink and fan in the predetermined positions of the fixture to ensure alignment. The press-fitting mechanism applies controllable pressure to make the fan and heat sink fit tightly together. At the same time, pressure sensors monitor the pressure in real time to prevent overpressure. The whole process is efficient and precise and is suitable for automated production lines.

[0004] The fan and heatsink may be misfitted due to uneven pressure, positioning deviation or material deformation during the press-fit process. The sliding distance of the press-fit components alone cannot determine whether the press-fit between the fan and heatsink is complete. This hidden defect will not be immediately apparent in the early stages, but in the long run, due to vibration, thermal expansion and contraction or mechanical stress, the fan may become loose, the heat dissipation efficiency may decrease, and there may even be abnormal noise or the risk of falling off. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a computer cooling fan assembly pressing device, which solves the problems mentioned in the background section.

[0006] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a computer cooling fan assembly press-fitting device, comprising a base, a support fixedly connected to the upper surface of the base, a tester fixedly connected to the upper surface of the support, a press-fitting component for press-fitting cooling fan parts inside the tester, a press-fitting base for preventing the cooling fan assembly from being pressed on the upper surface of the base, a fixing component for fixing the cooling fan on the upper surface of the press-fitting base, a clamping block for fixing the cooling fan on the upper surface of the press-fitting base, and a connecting pressure rod for testing the pull-out force of the press-fitted cooling fan inside the press-fitting base.

[0007] Preferably, the upper surface of the press-fit base is provided with a second groove, a fan frame is slidably connected inside the second groove, a rotor is fixedly connected to the upper surface of the fan frame, a support shaft is snapped into the inside of the rotor, and a rotating fan is rotatably connected to the lower surface of the support shaft.

[0008] Preferably, the press-fit base has a third groove inside, and an adjusting slide plate is slidably connected inside the third groove. A fourth groove is formed at one end of the adjusting slide plate. A first sliding frame is slidably connected inside the fourth groove via a sliding groove. A fourth spring is connected to the inner wall of the fourth groove, and the fourth spring is fixedly connected to the first sliding frame. A shrinkage groove is formed on the inner wall of the fourth groove. A second sliding frame is slidably connected to the inner wall of the first sliding frame. A top block is fixedly connected to the upper surface of the second sliding frame, and the inner wall of the first sliding frame is fixedly connected to... There is a first spring, which is fixedly connected to the top block. A bottom block is slidably connected inside the second sliding frame. A second spring is fixedly connected to the inner wall of the second sliding frame and is fixedly connected to the bottom block. A rising groove is opened on the inner wall of the third slot. An adjusting slider is slidably connected inside the rising groove. A third spring is fixedly connected to the inner wall of the rising groove and is fixedly connected to the adjusting slider. A connecting push block is fixedly connected to the surface of the adjusting slider. A fifth groove is opened on the surface of the adjusting slider.

[0009] Preferably, an inclined surface is provided below one end of the abutment block, and the connecting push block is located on the sliding path of the abutment block.

[0010] Preferably, the fifth slot is slidably connected to an inclined shaft, the inner wall of the third slot is provided with a guide groove, the guide groove is slidably connected to a guide block, the inclined shaft is fixedly connected to the guide block, the inner wall of the guide groove is provided with a pressing groove, the connecting pressure rod is slidably connected to the inside of the pressing groove, the connecting pressure rod is fixedly connected to the guide block, the connecting pressure rod is L-shaped, one end of the connecting pressure rod is provided with an elastic groove, the elastic groove is fixedly connected to a fifth spring, the elastic groove is slidably connected to a clamping block, and the clamping block is fixedly connected to the fifth spring.

[0011] Preferably, the support shaft is located between two clamping blocks, and a rubber pad is provided on the side of the clamping block near the support shaft.

[0012] Preferably, the inner wall of the rising groove has a sixth groove, and an adjusting toothed plate is slidably connected inside the sixth groove. The adjusting toothed plate is fixedly connected to the adjusting slide plate. The inner wall of the sixth groove has a seventh groove, and a transmission gear is rotatably connected to the inner wall of the seventh groove. The transmission gear meshes with the adjusting toothed plate. A rotating circular plate is fixedly connected to one side of the transmission gear, and a rotating push shaft is fixedly connected to one side surface of the rotating circular plate. A swing hammer is rotatably connected to the inner wall of the seventh groove via a rotating shaft. The surface of the swing hammer has an eighth groove, and the rotating push shaft extends into the interior of the eighth groove. A bell is fixedly connected to the top inner wall of the seventh groove.

[0013] Preferably, the bell is located on the rotation path of the swing hammer, and the surface of the press base is provided with a sound transmission groove, which is connected to the seventh groove.

[0014] Beneficial effects The computer cooling fan assembly pressing device provided by this invention has the following beneficial effects: 1. The pressure plate applies an upward thrust to the contact slider, which in turn causes the adjusting slide plate to slide upward. When the support shaft fails to engage with the rotor due to misalignment or poor pressing effect, the guide block slides upward inside the vertical part of the guide groove under the drive of the inclined shaft, thereby causing the support shaft to disengage from the rotor, thus achieving the purpose of testing the pull-out force of the pressed-fit cooling fan.

[0015] 2. As the support shaft disengages from the rotor and the clamping block slides upward, the adjusting slider slides upward under the action of the second sliding frame. This causes the transmission gear to rotate via the adjusting tooth plate, and the rotating circular plate causes the rotating push shaft to slide inside the eighth slot. This provides a thrust to the inner wall of the eighth slot, which in turn pushes the swing hammer to swing back and forth around the rotating shaft. The swing hammer strikes the bell, triggering an alarm and alerting the operator to the misalignment of the support shaft and the rotor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of part A in the image; Figure 4 This is a schematic diagram of the adjusting slider connection structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of slot number six of the present invention; Figure 6 For the present invention Figure 5 A magnified view of part A in the image; Figure 7This is a schematic diagram of the rotating circular plate connection structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the fan frame of the present invention.

[0017] The labels in the diagram represent: 1. Base; 11. Support; 12. Tester; 13. Press-fit assembly; 14. Fixing assembly; 2. Press-fit base; 21. Slot No. 2; 22. Fan frame; 23. Rotor; 24. Rotating fan; 25. Support shaft; 3. Slot No. 3; 31. Adjusting slide plate; 32. Slot No. 4; 33. Slide frame No. 1; 34. Slide frame No. 2; 35. Top block; 36. Spring No. 1; 37. Spring No. 2; 38. Abutment block; 39. Adjusting slider; 310. Spring No. 3; 311. Connection Push block; 312, slot 5; 313, contraction slot; 314, spring 4; 315, rising slot; 4, guide slot; 41, guide block; 42, inclined shaft; 43, connecting pressure rod; 44, pressure surface slot; 45, elastic slot; 46, spring 5; 47, clamping block; 5, slot 6; 51, adjusting toothed plate; 52, slot 7; 53, sound transmission slot; 54, transmission gear; 55, rotating circular plate; 56, swing hammer; 57, slot 8; 58, rotating push shaft; 59, bell. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] refer to Figures 1 to 8 A preferred embodiment of the present invention, a computer cooling fan assembly press-fitting device, will be described in detail below, including a base 1, a support 11 fixedly connected to the upper surface of the base 1, and a tester 12 fixedly connected to the upper surface of the support 11. The tester 12 is characterized by having a press-fitting assembly 13 for press-fitting cooling fan components inside; a press-fitting base 2 for placing the cooling fan assembly on the upper surface of the base 1; a fixing assembly 14 for fixing the cooling fan on the upper surface of the press-fitting base 2; a clamping block 47 for fixing the cooling fan on the upper surface of the press-fitting base 2; and a connecting pressure rod 43 for testing the pull-out force of the press-fitted cooling fan inside the press-fitting base 2.

[0020] The upper surface of the press base 2 is provided with a second groove 21. A fan frame 22 is slidably connected inside the second groove 21. A rotor 23 is installed in the inner cavity of the fan frame 22 through a bracket. A support shaft 25 is snapped into the inside of the rotor 23. A rotating fan 24 is rotatably connected to the lower surface of the support shaft 25. When the press assembly 13 slides down, the support shaft 25 and the rotor 23 are press-fitted.

[0021] The press-fit base 2 has a third groove 3 inside, and an adjusting slide plate 31 is slidably connected inside the third groove 3. One end of the adjusting slide plate 31 has a fourth groove 32, and a first sliding frame 33 is slidably connected inside the fourth groove 32 via a sliding groove. A fourth spring 314 is connected to the inner wall of the fourth groove 32 and is fixedly connected to the first sliding frame 33. A shrinkage groove 313 is formed on the inner wall of the fourth groove 32, and a second sliding frame 34 is slidably connected to the inner wall of the first sliding frame 33. A top block 35 is fixedly connected to the upper surface. A spring 36 is fixedly connected to the inner wall of the first sliding frame 33, and the spring 36 is fixedly connected to the top block 35. A stop block 38 is slidably connected inside the second sliding frame 34. A roller is provided on the upper surface of the stop block 38. A spring 37 is fixedly connected to the inner wall of the second sliding frame 34, and the spring 37 is fixedly connected to the stop block 38. A rising groove 315 is opened on the inner wall of the third groove 3. An adjusting slider 39 is slidably connected inside the rising groove 315. A No. 3 spring 310 is fixedly connected to the inner wall of the lifting groove 315. The No. 3 spring 310 is fixedly connected to the adjusting slider 39. A connecting push block 311 is fixedly connected to the surface of the adjusting slider 39. A No. 5 groove 312 is opened on the surface of the adjusting slider 39. An inclined surface is provided below one end of the abutment block 38. The connecting push block 311 is located on the sliding path of the abutment block 38. The adjusting slide plate 31 slides inside the No. 3 groove 3 under the drive of the pressing assembly 13. When the abutment block 38 contacts the connecting push block 311... At that time, the abutment block 38 retracts into the interior of the second slide frame 34 under the restriction of the connecting push block 311, until the second spring 37 is located below the connecting push block 311. The abutment block 38 extends back to the sliding path of the connecting push block 311 under the push of the second spring 37. When the fan is pressed and the adjusting slide plate 31 rises under the drive of the pressing assembly 13, the adjusting slide plate 31 gives the connecting push block 311 an upward push through the abutment block 38, thereby driving the adjusting slider 39 to slide upward.

[0022] The fifth slot 312 has a slidingly connected inclined shaft 42 inside. The inner wall of the third slot 3 has a guide groove 4, and a guide block 41 is slidably connected inside the guide groove 4. The inclined shaft 42 is fixedly connected to the guide block 41. The inner wall of the guide groove 4 has a pressing groove 44. The connecting pressure rod 43 is slidably connected inside the pressing groove 44 and is fixedly connected to the guide block 41. The connecting pressure rod 43 is L-shaped. One end of the connecting pressure rod 43 has an elastic groove 45 inside. A fifth spring 46 is fixedly connected inside the elastic groove 45. A clamping block 47 is slidably connected inside the elastic groove 45 to clamp. Block 47 is fixedly connected to spring 46. Support shaft 25 is located between two clamping blocks 47. A rubber pad is provided on the side of clamping block 47 near support shaft 25. During the upward sliding of sliding plate 31, the inclined surface of groove 312 on the side of sliding block 39 provides a thrust to inclined shaft 42. This, in turn, pulls connecting rod 43 towards support shaft 25 via guide block 41, thereby causing clamping block 47 to clamp support shaft 25. As sliding block 39 continues to slide upward, guide block 41, driven by inclined shaft 42, is positioned in the vertical part of guide groove 4. When support shaft 25 is offset or... When the press-fitting effect is poor and the fan fails to fully engage with the rotor 23, the guide block 41 slides upward within the vertical portion of the guide groove 4 under the drive of the inclined shaft 42. This causes the support shaft 25 to disengage from the rotor 23, thus achieving the purpose of pulling-out force testing on the press-fitted cooling fan. When the support shaft 25 is fully engaged with the rotor 23, the support shaft 25 cannot slide upward under the drive of the clamping block 47. The adjusting slider 39 is in a limited state under the action of friction between the support shaft 25 and the clamping block 47, and the adjusting slider 39 cannot slide upward. The adjusting slide plate 31 continues to slide upward, and the first slide frame 3... 3. Under the constraint of the connecting push block 311, the slide block 34 slides downward inside the adjusting slide plate 31 until the position of the second slide frame 34 is aligned with the shrinkage groove 313. Under the push of the first spring 36, the second slide frame 34 shrinks along the inclined surface of the shrinkage groove 313 into the inside of the shrinkage groove 313. At this time, the abutment block 38 is disengaged from the sliding path of the connecting push block 311 under the action of the second slide frame 34. The adjusting slider 39 loses the support of the abutment block 38. Under the push of the third spring 310, the adjusting slider 39 falls back into one end of the rising groove 315. At this time, the clamping block 47 releases its clamping on the support shaft 25.

[0023] The inner wall of the rising groove 315 has a sixth groove 5. An adjusting toothed plate 51 is slidably connected inside the sixth groove 5, and the adjusting toothed plate 51 is fixedly connected to the adjusting slide plate 31. The inner wall of the sixth groove 5 has a seventh groove 52, and a transmission gear 54 is rotatably connected to the inner wall of the seventh groove 52. The transmission gear 54 meshes with the adjusting toothed plate 51. A rotating circular plate 55 is fixedly connected to one side of the transmission gear 54, and a rotating push shaft 58 is fixedly connected to one side surface of the rotating circular plate 55. A swing hammer 56 is rotatably connected to the inner wall of the seventh groove 52 via a rotating shaft. An eighth groove 57 is formed on the surface of the swing hammer 56, and the rotating push shaft 58 extends into the interior of the eighth groove 57. A bell 59 is fixedly connected to the top inner wall of the seventh groove 52. Along the rotation path of the swing hammer 56, a sound transmission groove 53 is provided on the surface of the press base 2. The sound transmission groove 53 is connected to the seventh groove 52. As the support shaft 25 is disengaged from the rotor 23 and slides upward through the clamping block 47, the adjusting slider 39 slides upward under the action of the second sliding frame 34. The adjusting tooth plate 51 drives the transmission gear 54 to rotate, and the rotating circular plate 55 drives the rotating push shaft 58 to slide inside the eighth groove 57. This provides a thrust to the inner wall of the eighth groove 57, thereby pushing the swing hammer 56 to swing back and forth around the rotating shaft. The swing hammer 56 strikes the bell 59, thus sounding an alarm and alerting the operator to the misalignment of the support shaft 25 and the rotor 23 during press-fitting.

[0024] The following is the complete working process and working principle of the above embodiment: When the support shaft 25 and rotor 23 are pressed down by sliding the pressing assembly 13, when the abutment block 38 contacts the connecting push block 311, the abutment block 38 retracts into the interior of the second slide frame 34 under the restriction of the connecting push block 311, until the second spring 37 is located below the connecting push block 311. The abutment block 38 extends back to the sliding path of the connecting push block 311 under the push of the second spring 37. When the fan completes the pressing, when the adjusting slide plate 31 rises under the drive of the pressing assembly 13, the adjusting slide plate 31 gives the connecting push block 311 an upward push through the abutment block 38, thereby driving the adjusting slider 39 to slide upward.

[0025] As the adjusting slide plate 31 slides upward, the inclined surface of the fifth groove 312 on the side of the adjusting slider 39 provides a thrust to the inclined shaft 42. This, in turn, pulls the connecting pressure rod 43 towards the support shaft 25 via the guide block 41, thereby causing the clamping block 47 to clamp the support shaft 25. As the adjusting slider 39 continues to slide upward, the guide block 41, driven by the inclined shaft 42, is located in the vertical part of the guide groove 4. When the support shaft 25 fails to engage with the rotor 23 due to misalignment or poor pressing effect, the guide block 41, driven by the inclined shaft 42, slides upward inside the vertical part of the guide groove 4, thereby causing the support shaft 25 to disengage from the rotor 23. This achieves the purpose of testing the pull-out force of the pressed-fit cooling fan. When the support shaft 25 and the rotor 23 are engaged, the support shaft 25 cannot slide upward under the action of the clamping block 47. The adjusting slider 39 is in a limited state under the action of the friction between the support shaft 25 and the clamping block 47. The adjusting slider 39 cannot slide upward, and the adjusting slide plate 31 continues to slide upward. The first slide frame 33 slides downward inside the adjusting slide plate 31 under the restriction of the connecting push block 311 until the position of the second slide frame 34 is aligned with the shrinkage groove 313. Under the push of the first spring 36, the second slide frame 34 shrinks along the inclined surface of the shrinkage groove 313 into the inside of the shrinkage groove 313. At this time, the abutment block 38 is disengaged from the sliding path of the connecting push block 311 under the action of the second slide frame 34. The adjusting slider 39 loses the support of the abutment block 38. Under the push of the third spring 310, the adjusting slider 39 falls back into one end of the rising groove 315. At this time, the clamping block 47 releases its clamping on the support shaft 25.

[0026] As the support shaft 25 disengages from the rotor 23 and slides upward through the clamping block 47, the adjusting slider 39 slides upward under the action of the second sliding frame 34. This causes the transmission gear 54 to rotate via the adjusting toothed plate 51, and the rotating push shaft 58 to slide inside the eighth slot 57 via the rotating circular plate 55. This provides a thrust to the inner wall of the eighth slot 57, which in turn pushes the swing hammer 56 to swing back and forth around the rotating shaft. The swing hammer 56 strikes the bell 59, triggering an alarm and alerting the operator to the misalignment of the support shaft 25 and the rotor 23.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A computer cooling fan assembly pressing device, comprising a base (1), wherein a support (11) is fixedly connected to the upper surface of the base (1), and a testing instrument (12) is fixedly connected to the upper surface of the support (11), characterized in that: The tester (12) is equipped with a pressing assembly (13) for pressing the cooling fan parts. The upper surface of the base (1) is equipped with a pressing base (2) to prevent the cooling fan assembly from being pressed. The upper surface of the pressing base (2) is equipped with a fixing assembly (14) for fixing the cooling fan. The upper surface of the pressing base (2) is equipped with a clamping block (47) for fixing the cooling fan. The pressing base (2) is equipped with a connecting pressure rod (43) for testing the pull-out force of the pressed cooling fan.

2. The computer cooling fan assembly pressing device according to claim 1, characterized in that: The upper surface of the press base (2) is provided with a second groove (21), and a fan frame (22) is slidably connected inside the second groove (21). A rotor (23) is fixedly connected to the upper surface of the fan frame (22), and a support shaft (25) is snapped into the inside of the rotor (23). A rotating fan (24) is rotatably connected to the lower surface of the support shaft (25).

3. The computer cooling fan assembly pressing device according to claim 2, characterized in that: The press-fit base (2) has a No. 3 groove (3) inside, and an adjusting slide plate (31) is slidably connected inside the No. 3 groove (3). A No. 4 groove (32) is opened at one end of the adjusting slide plate (31). A No. 1 sliding frame (33) is slidably connected inside the No. 4 groove (32) through a sliding groove. A No. 4 spring (314) is connected to the inner wall of the No. 4 groove (32). The No. 4 spring (314) is fixedly connected to the No. 1 sliding frame (33). A shrinkage groove (313) is opened on the inner wall of the No. 1 sliding frame (33). A No. 2 sliding frame (34) is slidably connected to the inner wall of the No. 1 sliding frame (33). A top block (35) is fixedly connected to the upper surface of the No. 2 sliding frame (34). A No. 1 spring (36) is fixedly connected to the inner wall of the No. 1 sliding frame (33). The first spring (36) is fixedly connected to the top block (35). The second slide frame (34) is slidably connected to the abutment block (38). The second spring (37) is fixedly connected to the inner wall of the second slide frame (34). The second spring (37) is fixedly connected to the abutment block (38). The inner wall of the third groove (3) is provided with a rising groove (315). The rising groove (315) is slidably connected to the inside of the rising groove (315). The inner wall of the rising groove (315) is fixedly connected to the third spring (310). The third spring (310) is fixedly connected to the adjusting slider (39). The surface of the adjusting slider (39) is fixedly connected to a connecting push block (311). The surface of the adjusting slider (39) is provided with a fifth groove (312).

4. The computer cooling fan assembly pressing device according to claim 3, characterized in that: The abutment block (38) has an inclined surface at one end, and the connecting push block (311) is located on the sliding path of the abutment block (38).

5. The computer cooling fan assembly pressing device according to claim 3, characterized in that: The fifth groove (312) is slidably connected to the inside of the inclined shaft (42). The inner wall of the third groove (3) is provided with a guide groove (4). The guide groove (4) is slidably connected to the inside of the guide groove (4). The inclined shaft (42) is fixedly connected to the guide block (41). The inner wall of the guide groove (4) is provided with a pressing groove (44). The connecting pressure rod (43) is slidably connected to the inside of the pressing groove (44). The connecting pressure rod (43) is fixedly connected to the guide block (41). The connecting pressure rod (43) is L-shaped. One end of the connecting pressure rod (43) is provided with an elastic groove (45). The elastic groove (45) is fixedly connected to the inside of the elastic groove (46). The elastic groove (45) is slidably connected to the inside of the elastic groove (45). The clamping block (47) is fixedly connected to the inside of the elastic groove (45).

6. The computer cooling fan assembly pressing device according to claim 5, characterized in that: The support shaft (25) is located between two clamping blocks (47), and the clamping blocks (47) are provided with rubber pads on the side of the support shaft (25).

7. The computer cooling fan assembly pressing device according to claim 3, characterized in that: The inner wall of the rising groove (315) is provided with a sixth groove (5), and an adjusting toothed plate (51) is slidably connected inside the sixth groove (5). The adjusting toothed plate (51) is fixedly connected to the adjusting slide plate (31). The inner wall of the sixth groove (5) is provided with a seventh groove (52), and a transmission gear (54) is rotatably connected to the inner wall of the seventh groove (52). The transmission gear (54) meshes with the adjusting toothed plate (51). A rotating circular plate (55) is fixedly connected to one side of the transmission gear (54). A rotating push shaft (58) is fixedly connected to one side surface of the rotating circular plate (55). A swing hammer (56) is rotatably connected to the inner wall of the seventh groove (52) through a rotating shaft. The surface of the swing hammer (56) is provided with an eighth groove (57). The rotating push shaft (58) extends into the interior of the eighth groove (57). A bell (59) is fixedly connected to the top inner wall of the seventh groove (52).

8. The computer cooling fan assembly pressing device according to claim 7, characterized in that: The bell (59) is located on the rotation path of the swing hammer (56), and the surface of the press base (2) is provided with a sound transmission groove (53), which is connected to the seventh groove (52).

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