Milling device

Abstract

The application discloses a kind of milling processing devices, comprising: locating tool, fan includes transmission nut, transmission nut has outer end face;Pressing mechanism, including being set above locating tool and the first lifting driver of driving pressing frame and pressing fan of pressing frame Pressing mechanism, drive mechanism, including the driven gear that can be detachably set in transmission nut outside, the gear assembly that can be independently rotated and the transverse shift component that drives gear assembly moves;Milling mechanism, including being located above locating tool milling cutter, the milling driver of driving milling cutter rotation and the second lifting driver of driving milling cutter movement;Gear assembly is suitable for being engaged with driven gear under the driving of transverse shift component, milling cutter is suitable for being contacted with outer end face under the driving of second lifting driver.The application can carry out milling operation to the outer end face of the transmission nut of unqualified fan, improve the pass rate, and milling efficiency is high, reliability is high, and milling mechanism is smoothly milled.

Description

Technical Field

[0001] This invention relates to the field of fan inspection technology, and in particular to a milling processing device. Background Technology

[0002] During the production process of fans, the axial movement of their shaft assembly needs to be detected to ensure that they are qualified for shipment. Specifically, a transmission nut is provided at the end of the shaft assembly. By connecting the motor to the transmission nut, the shaft assembly is rotated. A detection sensor contacts the outer end face of the transmission nut facing the motor, and the amount of runout of the outer end face is detected to determine whether there is axial movement. In the existing technology, defective fans will directly flow into the defective area and be scrapped, which increases production costs and cannot guarantee the pass rate.

[0003] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Summary of the Invention

[0004] The purpose of this invention is to provide a milling processing device for milling the drive nuts of defective fans, thereby improving the pass rate.

[0005] The objective of this invention is achieved through the following technical solution: a milling apparatus, comprising:

[0006] A positioning fixture for positioning a fan, the fan including a shaft assembly with a transmission nut at one end, the transmission nut having an outer end face perpendicular to the vertical direction;

[0007] The clamping mechanism includes a clamping frame disposed above the positioning fixture and a first lifting drive component that drives the clamping frame to clamp the fan;

[0008] The drive mechanism includes a driven gear detachably sleeved outside the transmission nut, a self-rotating gear assembly, and a lateral movement assembly that drives the gear assembly to move closer to or away from the driven gear.

[0009] The milling mechanism includes a milling cutter located above the positioning fixture, a milling drive for rotating the milling cutter, and a second lifting drive for moving the milling cutter closer to or away from the fan.

[0010] The gear assembly is adapted to mesh with the driven gear under the drive of the transverse assembly, and the milling cutter is adapted to contact the outer end face under the drive of the second lifting drive member.

[0011] Furthermore, the gear assembly includes:

[0012] The first mounting bracket is connected to the transverse moving assembly via a transmission mechanism;

[0013] The drive gear is rotatably mounted on the first mounting bracket;

[0014] A gear drive component is mounted on the first mounting bracket and is connected to the drive gear transmission;

[0015] The lateral movement component is adapted to drive the driving gear to mesh with the driven gear.

[0016] Furthermore, the driven gear includes:

[0017] The teeth correspond to the drive gear;

[0018] The mounting part is coaxially arranged with the toothed part;

[0019] The gear assembly includes a pressing member rotatably mounted on the first mounting bracket. When the drive gear meshes with the teeth, the pressing member abuts against the mounting portion.

[0020] Furthermore, the driven gear has a through-hole along its axial direction. The through-hole is a non-circular hole, and its inner contour matches the outer contour of the transmission nut.

[0021] Furthermore, the milling mechanism includes:

[0022] The third mounting bracket, on which the second lifting drive component is mounted;

[0023] A power head is mounted on the third mounting bracket and can move vertically relative to the third mounting bracket. The input end of the power head is connected to the milling drive component, and the output end of the power head is connected to the milling cutter.

[0024] The second lifting drive component is connected to the power head via a transmission.

[0025] Furthermore, a dust suction tube is provided on the power head, which is coaxially sleeved outside the milling cutter and extends from the connecting end of the milling cutter to the milling end of the milling cutter.

[0026] Furthermore, the vacuum cleaner has a supporting end facing the outer end face, the supporting end being an elastic structure that can extend and retract along the axial direction of the vacuum cleaner, and the milling end of the milling cutter does not protrude relative to the supporting end.

[0027] Furthermore, the milling mechanism includes a dust suction pipe, one end of which is connected to the dust suction cylinder, and the other end is connected to a dust suction device.

[0028] Furthermore, the clamping frame is located below the milling cutter, and the clamping frame has a through hole in the vertical direction to avoid the milling cutter.

[0029] Furthermore, the first lifting drive member and the second lifting drive member are arranged opposite each other in the vertical direction.

[0030] Compared with the prior art, the present invention has the following beneficial effects: By adopting the above-mentioned structure, the present invention can perform milling operation on the outer end face of the transmission nut of the defective fan, so that some defective products can eliminate axial movement and become qualified products, thereby improving the pass rate and reducing production costs; the drive mechanism includes a driven gear detachably sleeved on the outside of the transmission nut, a self-rotating gear assembly, and a transverse component that meshes with the driven gear assembly, which can automatically and quickly realize the transmission connection and separation of the fan and the drive mechanism, effectively improving milling efficiency, and will not affect the installation position and milling operation of the milling mechanism. The structure is reasonable and highly reliable, ensuring that the milling mechanism smoothly mills the outer end face. Attached Figure Description

[0031] Figure 1 This is a front view schematic diagram of the milling processing device of the present invention without a main frame.

[0032] Figure 2 This is a schematic diagram of the milling processing device of the present invention.

[0033] Figure 3 This is an exploded structural diagram of the fan and driven gear in this invention.

[0034] Figure 4 This is a schematic diagram of the drive mechanism in this invention.

[0035] Figure 5 This is a front view schematic diagram of the driving mechanism in this invention.

[0036] Figure 6 This is a schematic diagram of the structure of the milling processing device of the present invention when it is equipped with a dust suction cylinder.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Fan; 110. Transmission nut; 111. Outer end face; 120. Housing; 121. First housing; 122. Second housing; 123. Connecting part; 200. Positioning fixture; 210. Base plate; 220. Positioning pin; 300. Clamping mechanism; 310. Clamping frame; 311. Mounting plate; 312. Pressing pin; 313. Through hole; 320. First lifting drive component; 400. Drive mechanism; 410. Driven gear; 411. Connecting hole; 412. Gear; 413. Mounting part; 420. Gear assembly ; 421, First mounting bracket; 4211, First end; 4212, Second end; 422, Drive gear; 423, Gear drive component; 424, Pulley assembly; 425, Pressing component; 430, Lateral movement assembly; 431, Second mounting bracket; 432, Lateral movement drive component; 500, Milling mechanism; 510, Milling cutter; 520, Milling drive component; 530, Second lifting drive component; 540, Third mounting bracket; 550, Power head; 560, Dust collection cylinder; 561, Supporting end; 570, Dust collection pipe; 600, Main frame body. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0040] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] In the existing technology, defective fans 100 will directly flow into the defective area and be scrapped, which increases production costs and cannot guarantee the pass rate. However, according to actual tests, by milling the outer end face 111 of the transmission nut 110 once or multiple times, some defective fans 100 can eliminate axial movement and thus become qualified products.

[0043] Please see Figures 1 to 3 As shown, a milling apparatus corresponding to a preferred embodiment of the present invention is used to mill a defective fan 100. The milling apparatus includes: a positioning fixture 200 for positioning the fan 100, the fan 100 including a rotating shaft assembly (not shown) with a transmission nut 110 at one end, the transmission nut 110 having an outer end face 111 perpendicular to the vertical direction; a clamping mechanism 300 including a clamping frame 310 disposed above the positioning fixture 200 and a first lifting drive member 320 for driving the clamping frame 310 to clamp the fan 100; and a drive mechanism 400 including a driven gear 410 detachably sleeved on the transmission nut 110, a self-rotating gear assembly 420, and a... The gear assembly 420 is driven to move closer to or away from the driven gear 410; the milling mechanism 500 includes a milling cutter 510 located above the positioning fixture 200, a milling drive 520 that drives the milling cutter 510 to rotate, and a second lifting drive 530 that drives the milling cutter 510 to move closer to or away from the fan 100; wherein the gear assembly 420 is adapted to mesh with the driven gear 410 under the drive of the lateral assembly 430, and the milling cutter 510 is adapted to contact the outer end face 111 under the drive of the second lifting drive 530.

[0044] By employing the above-described structure, this invention enables milling of the outer end face 111 of the transmission nut 110 of a defective fan 100, thereby eliminating axial movement in some defective products and converting them into qualified products, improving the pass rate and reducing production costs. The drive mechanism 400 includes a driven gear 410 detachably sleeved on the transmission nut 110, a self-rotating gear assembly 420, and a transverse movement assembly 430 that meshes with the driven gear 410. This allows for automatic and rapid connection and separation of the transmission between the fan 100 and the drive mechanism 400, effectively improving milling efficiency without affecting the installation position and milling operation of the milling mechanism 500. The structure is reasonable and highly reliable, ensuring that the milling mechanism 500 smoothly mills the outer end face 111.

[0045] Furthermore, the milling processing device includes a main frame 600, a clamping mechanism 300, a driving mechanism 400, and a milling mechanism 500, all of which are mounted on the main frame 600.

[0046] Furthermore, the fan 100 includes a housing 120, and a shaft assembly is rotatably connected to the housing 120. The end of the shaft assembly not connected to the transmission nut 110 is provided with fan blades (not shown), which are located inside the housing 120. The housing 120 is formed by splicing a first housing 121 and a second housing 122. Multiple connecting parts 123 are evenly distributed along the circumference of the first housing 121 and the second housing 122. The connecting parts 123 on the two housings correspond one-to-one and are fastened by threaded fasteners.

[0047] Furthermore, the positioning fixture 200 includes a base plate 210 and positioning posts 220 fixed vertically on the base plate 210. The positioning posts 220 are used to support the connecting parts 123 on the first housing 121. There are multiple positioning posts 220, and each one corresponds to a connecting part 123.

[0048] The clamping frame 310 includes a mounting plate 311 and a pressing column 312 fixed on the mounting plate 311 in a vertical direction. The pressing column 312 is arranged opposite to the positioning column 220. The pressing column 312 is used to press against the connecting part 123 on the second housing 122. There are multiple pressing columns 312, and they correspond one-to-one with the positioning column 220.

[0049] A guide rail structure is provided between the clamping frame 310 and the main frame 600 to guide the clamping frame 310 to move vertically relative to the main frame 600. The first lifting drive component 320 is fixed at a position near the bottom of the main frame 600. The first lifting drive component 320 is a linear cylinder or an electric cylinder, and the output end of the first lifting drive component 320 is fixedly connected to the clamping frame 310.

[0050] Furthermore, the drive mechanism 400 is located below the mounting plate 311. (Refer to...) Figures 3 to 5 As shown, the gear assembly 420 includes a first mounting bracket 421, a drive gear 422, and a gear drive member 423. The first mounting bracket 421 is connected to the transverse assembly 430. The drive gear 422 is rotatably mounted on the first mounting bracket 421. The gear drive member 423 is mounted on the first mounting bracket 421 and is connected to the drive gear 422. The transverse assembly 430 is adapted to drive the first mounting bracket 421 through the space between two adjacent abutment columns 312 and to make the drive gear 422 mesh with the driven gear 410. The gear drive member 423 is a rotary motor and is adapted to drive the drive gear 422 to rotate, so as to drive the driven gear 410 and the transmission nut 110 to rotate.

[0051] In this embodiment, the first mounting bracket 421 has a first end 4211 close to the positioning fixture 200 and a second end 4212 away from the positioning fixture 200 in its moving direction. The drive gear 422 is disposed at the first end 4211, and the gear drive member 423 is disposed at the second end 4212. The drive gear 422 and the gear drive member 423 are connected by a pulley group 424 to ensure that the first mounting bracket 421 passes smoothly through the clamping frame 310 during its movement.

[0052] The lateral movement assembly 430 includes a second mounting bracket 431 disposed on the main frame 600 and a lateral movement drive 432 disposed on the second mounting bracket 431. A guide rail structure is provided between the first mounting bracket 421 and the second mounting bracket 431 to guide the first mounting bracket 421 to move horizontally relative to the second mounting bracket 431. The lateral movement drive 432 is a linear cylinder or an electric cylinder. The output end of the lateral movement drive 432 is fixedly connected to the first mounting bracket 421 to drive the first mounting bracket 421 to move.

[0053] The driven gear 410 has a connecting hole 411 extending along its axis. The connecting hole 411 is a non-circular hole, and its inner contour matches the outer contour of the transmission nut 110, thereby ensuring that the transmission nut 110 and the driven gear 410 rotate synchronously.

[0054] Preferably, the driven gear 410 includes a tooth 412 and a mounting portion 413 coaxially arranged with the tooth 412. The tooth 412 corresponds to the driving gear 422, and the mounting portion 413 is coaxially arranged with the tooth 412. The gear assembly 420 includes a pressing member 425 rotatably arranged on the first mounting bracket 421. The pressing member 425 is a bearing, and the axial direction of the pressing member 425 is consistent with the vertical direction. The pressing member 425 is located at the first end 4211 of the first mounting bracket 421. When the driving gear 422 meshes with the tooth 412, the pressing member 425 abuts against the mounting portion 413, thereby preventing the driven gear 410 from moving upward during the meshing process of the driving gear 422 and the driven gear 410, improving the reliability of the driven gear 410 after installation, and also effectively eliminating the radial movement of the shaft assembly, thus improving the milling accuracy.

[0055] Furthermore, referring to Figure 2As shown, the milling cutter 510 is located above the clamping frame 310. To ensure that the milling cutter 510 can pass through the clamping frame 310 and mill the transmission nut 110, the clamping frame 310 has a through hole 313 in the vertical direction to avoid the milling cutter 510. The milling mechanism 500 includes a third mounting frame 540 and a power head 550 slidably connected to the third mounting frame 540. The third mounting frame 540 is mounted on the main frame 600 and located above the clamping frame 310. A second lifting drive 530 is mounted on the third mounting frame 540 and is connected to the power head 550. The second lifting drive 530 is an electric cylinder that can drive the power head 550 to move in the vertical direction. By setting the third mounting frame 540, the sliding parts of the power head 550 and the clamping frame 310 can be staggered in the horizontal direction, avoiding mutual restriction between them. The second lifting drive 530 and the first lifting drive 320 are arranged opposite each other in the vertical direction, thereby making reasonable use of the space at the main frame 600 and facilitating the installation of the first lifting drive 320 and the second lifting drive 530. The milling drive 520 is a rotary motor, which is connected to the input end of the power head 550. The milling cutter 510 is connected to the output end of the power head 550, and the milling cutter 510 is adapted to rotate under the transmission of the power head 550.

[0056] Preferably, refer to Figure 6 As shown, a dust collection tube 560 is provided on the power head 550. The dust collection tube 560 is coaxially sleeved outside the milling cutter 510. The milling cutter 510 has a connecting end that is detachably connected to the power head 550 and a milling end facing the outer end face 111 of the transmission nut 110. The dust collection tube 560 extends from the connecting end of the milling cutter 510 to the milling end of the milling cutter 510.

[0057] The dust collection cylinder 560 has a supporting end 561 facing the outer end face 111 of the drive nut 110. The supporting end 561 is an elastic structure that can extend and retract along the axial direction of the dust collection cylinder 560. The milling end of the milling cutter 510 does not protrude relative to the supporting end 561, so that when the milling cutter 510 and the dust collection cylinder 560 move toward the fan 100, the dust collection cylinder 560 can first contact the outer end face 111 and support it, so as to cooperate with the outer end face 111 to enclose the milling cutter 510. When the milling cutter 510 mills the outer end face 111, the milling waste will not be scattered outside the dust collection cylinder 560, thereby improving the cleanliness around the fan 100.

[0058] In this embodiment, the supporting end 561 of the vacuum cleaner 560 can adopt a corrugated tube structure, or the supporting end 561 of the vacuum cleaner 560 can be made of an elastic material, and the supporting end 561 of the vacuum cleaner 560 is flared, thereby improving the reliability of sealing and telescopic.

[0059] Preferably, the projection of the vacuum cleaner 560 in its axial direction covers at least part of the end face of the driven gear 410, thereby enabling the driven gear 410 to be pressed against, further improving the reliability of the driven gear 410 after installation.

[0060] In addition, the milling mechanism 500 also includes a dust suction pipe 570. One end of the dust suction pipe 570 is connected to the dust suction cylinder 560, and the other end is connected to a dust suction device (not shown). The dust suction cylinder 560, the power head 550, the driven gear 410 and the transmission nut 110 cooperate to form a closed space for accommodating waste. The dust suction device can suck up the waste in the closed space through the dust suction pipe 570 to facilitate milling by the milling cutter 510 and the cleanliness of the fan 100 after milling.

[0061] The milling process of this invention is as follows: A manual or robotic arm places the fan 100 to be processed onto the positioning fixture 200, and the driven gear 410 is fitted onto the transmission nut 110. The first lifting drive 320 drives the clamping frame 310 to press against the fan 100 vertically. The transverse movement assembly 430 drives the gear assembly 420 to move horizontally towards the positioning fixture 200, so that the driving gear 422 meshes with the driven gear 410. Simultaneously, the pressing member 425 abuts against the mounting portion 413 of the driven gear 410, thereby restricting the axial and radial movement of the driven gear 410. Then, the gear drive 423 drives the driving gear 422... 2. The rotation of the drive gear 410 and the transmission nut 110 causes the driven gear 410 and the transmission nut 110 to rotate. The second lifting drive 530 drives the milling cutter 510 to move downward so that the milling cutter 510 contacts the outer end face 111 of the transmission nut 110. The milling drive 520 drives the milling cutter 510 to rotate so as to mill the outer end face 111. During this process, the dust collection cylinder 560 is placed around the milling cutter 510 to prevent the milled waste from flying. The dust collection pipe 570 can absorb the waste in the dust collection cylinder 560 to ensure the cleanliness of the fan 100 and the area around the fan 100. After the processing is completed, all mechanisms are reset so that the fan 100 can be removed and re-inspected.

[0062] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A milling device, characterized by The utility model relates to a positioning tool (200) for positioning a fan (100), the fan (100) comprising a rotating shaft assembly with a transmission nut (110) at one end, the transmission nut (110) having an outer end face (111) perpendicular to the vertical direction, the fan (100) comprising a casing (120) formed by a first casing (121) and a second casing (122), the first casing (121) and the second casing (122) having a plurality of connecting portions (123) uniformly distributed along the circumferential direction, the connecting portions (123) on the first casing (121) and the second casing (122) corresponding to each other and being fastened by threaded fasteners; the positioning tool (200) comprising a base plate (210) and a positioning column (220) fixed to the base plate (210) along the vertical direction, the positioning column (220) being used to support the connecting portions (123) on the first casing (121), the positioning column (220) having a plurality of columns and corresponding to the connecting portions (123) one by one; a pressing mechanism (300) comprising a pressing frame (310) arranged above the positioning tool (200) and a first lifting drive (320) with an output end fixedly connected to the pressing frame (310); the pressing frame (310) comprising a mounting plate (311) and a pressing column (312) fixed to the mounting plate (311) along the vertical direction, the pressing column (312) being arranged opposite to the positioning column (220), the pressing column (312) being used to press the connecting portions (123) on the second casing (122), the pressing column (312) having a plurality of columns and corresponding to the positioning column (220) one by one; the first lifting drive 320 being adapted to drive the pressing frame (310) to press the fan (100) along the vertical direction. ​ The driving mechanism (400) comprises a driven gear (410) detachably sleeved outside the transmission nut (110), a gear assembly (420) capable of rotating autonomously, and a horizontal moving assembly (430) driving the gear assembly (420) to move close to or away from the driven gear (410), the gear assembly (420) comprises: a first mounting frame (421) in transmission connection with the horizontal moving assembly (430); a driving gear (422) rotatably arranged on the first mounting frame (421); and a gear driving element (423) arranged on the first mounting frame (421) and in transmission connection with the driving gear (422); wherein the horizontal moving assembly (430) is adapted to drive the driving gear (422) to engage with the driven gear (410), the driven gear (410) is provided with a connecting hole (411) penetrating along the axial direction thereof, the connecting hole (411) is a non-circular hole, the inner contour of the connecting hole (411) is adapted to the outer contour of the transmission nut (110), the driven gear (410) comprises: a tooth portion (412) corresponding to the driving gear (422); and a mounting portion (413) coaxially arranged with the tooth portion (412); wherein the gear assembly (420) comprises a pressing element (425) rotatably arranged on the first mounting frame (421), when the driving gear (422) engages with the tooth portion (412), the pressing element (425) abuts against the mounting portion (413); The milling mechanism (500) comprises a milling cutter (510) located above the positioning tool (200), a milling driving element (520) driving the milling cutter (510) to rotate, and a second lifting driving element (530) driving the milling cutter (510) to move close to or away from the fan (100); The milling cutter (510) is adapted to contact the outer end face (111) under the driving of the second lifting driving element (530).

2. The milling apparatus of claim 1, wherein The milling mechanism (500) comprises: A third mounting frame (540), wherein the second lifting driving element (530) is arranged on the third mounting frame (540); A power head (550) mounted on the third mounting frame (540) and capable of moving relative to the third mounting frame (540) along the vertical direction, wherein the input end of the power head (550) is connected with the milling driving element (520), and the output end of the power head (550) is connected with the milling cutter (510); The second lifting driving element (530) is in transmission connection with the power head (550).

3. The milling apparatus of claim 2, wherein A dust collection cylinder (560) is arranged on the power head (550), the dust collection cylinder (560) is coaxially sleeved outside the milling cutter (510) and extends from the connecting end of the milling cutter (510) to the milling end of the milling cutter (510).

4. The milling apparatus of claim 3, wherein The vacuum tube (560) has a supporting end (561) facing the outer end face (111), the supporting end (561) is an elastic structure that can extend and retract along the axial direction of the vacuum tube (560), and the milling end of the milling cutter (510) does not protrude relative to the supporting end (561).

5. The milling apparatus of claim 3, wherein The milling mechanism (500) includes a dust suction pipe (570), one end of which is connected to the dust suction cylinder (560), and the other end is connected to a dust suction device.

6. The milling apparatus of claim 1, wherein The clamping frame (310) is located below the milling cutter (510), and the clamping frame (310) has a through hole (313) in the vertical direction to avoid the milling cutter (510).

7. The milling apparatus of claim 6, wherein The first lifting drive (320) and the second lifting drive (530) are arranged opposite each other in the vertical direction.

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