A polishing mechanism

Abstract

This utility model relates to the field of gear processing technology, specifically to a grinding mechanism, including a table with opposing vertical plates on the table. A rotatable drive shaft is mounted on one vertical plate, and a retractable support shaft is mounted on the other vertical plate. A rotatable mounting rod for mounting gears is located between the drive shaft and the support shaft. A fixing component for securing the gears is mounted on the mounting rod. A nylon brush for grinding the gears is mounted on the table, and a drive component for driving the nylon brush to reciprocate is also mounted on the table. The drive shaft drives the mounting rod to rotate, which in turn drives the gears to rotate. Simultaneously, the drive component drives the nylon brush to reciprocate between multiple gears, and the brush also rotates, thus grinding and deburring multiple gears. This solves the problem of having to install and grind each gear individually.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, and more specifically, to a grinding mechanism. Background Technology

[0002] As a crucial component in mechanical transmission, the quality of gear machining directly affects the overall transmission efficiency and service life of the machine. Currently, during gear machining, especially after processes such as hobbing, shaping, and grinding, burrs often remain between the teeth. If these burrs are not removed in time, they will not only affect the gear meshing accuracy but may also cause abnormal wear during subsequent assembly or operation, or even damage related parts. Therefore, grinding mechanisms are typically used to polish these gears.

[0003] Existing grinding mechanisms mostly employ a step-by-step installation and grinding method. This involves installing one gear, grinding each tooth individually, then disassembling the gear and replacing it with the next one. This method is inefficient, and the frequent disassembly and reassembly is time-consuming and labor-intensive, thus requiring improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A polishing mechanism includes a table, on which vertical plates are arranged opposite each other. A rotatable drive shaft is provided on one side of the vertical plate, and a retractable support shaft is provided on the other side of the vertical plate. A rotatable mounting rod for mounting a gear is provided between the drive shaft and the support shaft. A fixing component for fixing the gear is provided on the mounting rod. A nylon brush for polishing the gear is provided on the table, and a drive component for driving the nylon brush to reciprocate is provided on the table.

[0007] Furthermore, the fixing assembly includes a limiting plate on one side of the mounting rod, a threaded nut on the other side of the mounting rod, a washer on the mounting rod for being located between the nut and the gear and abutting the gear, and rubber pads on the limiting plate and the washer.

[0008] Furthermore, a slide rail is provided on the table, a slidable support block is provided on the slide rail, a square plate is provided on the support block, a track is provided on the square plate, a slidable mounting plate is provided on the track, a cylinder for driving the mounting plate to slide is provided on the square plate, a support frame is provided on the mounting plate, and a first motor for driving the nylon brush to rotate is provided on the support frame.

[0009] Furthermore, the drive assembly includes fixed plates disposed opposite each other on the table, a rotatable lead screw between the fixed plates, a slider connected to a square plate on the lead screw, a guide rod between the fixed plates, an extension block connected to the guide rod on the slider, and a second motor for driving the lead screw to rotate on the table.

[0010] Furthermore, a driven sprocket is provided on the drive shaft, a driving sprocket is provided on the lead screw, and a chain is provided between the driving sprocket and the driven sprocket.

[0011] Furthermore, the upright plate is provided with a threaded sleeve for mounting the support shaft. The end of the support shaft away from the drive shaft is extended by the threaded sleeve, and a turntable is provided at the end of the support shaft extending out of the threaded sleeve.

[0012] Furthermore, the end of the drive shaft facing the mounting rod is provided with a key block, and the mounting rod is provided with a keyway corresponding to the key block. The end of the support shaft facing the mounting rod is provided with a tapered column, and the mounting rod is provided with a tapered hole corresponding to the tapered column.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a drive assembly to move a nylon brush back and forth between multiple gears. Simultaneously, a drive shaft drives a mounting rod to rotate, which in turn drives the gears to rotate. As the gears rotate, the rotation and reciprocating movement of the nylon brush can polish and deburr multiple gears, thus solving the problem of having to install and polish each gear individually and improving polishing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a grinding mechanism in this utility model.

[0016] Figure 2 This is a schematic diagram of the structure in this utility model where the mounting rod is not installed between the drive shaft and the support shaft.

[0017] Figure 3 This is an exploded structural diagram of the mounting rod and its components in this utility model.

[0018] The labels in the diagram represent the following: 100, tabletop; 101, upright plate; 102, drive shaft; 103, support shaft; 104, mounting rod; 105, nylon brush; 106, limit plate; 107, nut; 108, washer; 109, rubber pad; 110, threaded sleeve; 111, turntable; 112, key block; 113, tapered column; 114, gear; 200, slide rail; 201, support block; 202, square plate; 203, track; 204, mounting plate; 205, cylinder; 206, first motor; 300, fixing plate; 301, lead screw; 302, slider; 303, guide rod; 304, extension block; 305, second motor; 306, driven sprocket; 307, driving sprocket; 308, chain. Detailed Implementation

[0019] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0020] The following is in conjunction with the appendix Figures 1-3 This embodiment will be described in further detail.

[0021] Please see Figures 1-3 A grinding mechanism in this embodiment includes a table 100, on which vertical plates 101 are disposed opposite each other. The vertical plates 101 are fixedly connected to the table 100. A rotatable drive shaft 102 is disposed on one side of the vertical plate 101 and is mounted on the vertical plate 101 via bearings. A telescopic support shaft 103 is disposed on the other side of the vertical plate 101. A rotatable mounting rod 104 for mounting a gear 114 is disposed between the drive shaft 102 and the support shaft 103. A key is disposed at the end of the drive shaft 102 facing the mounting rod 104. 112, the key block 112 is fixedly connected to the drive shaft 102, the mounting rod 104 is provided with a keyway corresponding to the key block 112, the key block 112 and the keyway are connected by plug-in fit, the end of the support shaft 103 facing the mounting rod 104 is provided with a tapered column 113, the tapered column 113 is fixedly connected to the support shaft 103, the mounting rod 104 is provided with a tapered hole corresponding to the tapered column 113, the tapered column 113 and the tapered hole are pivotally connected with tapered clearance fit, in actual use, the tapered hole can be filled with lubricating medium to reduce friction;

[0022] The upright plate 101 is provided with a threaded sleeve 110 for mounting the support shaft 103. The threaded sleeve 110 is fixedly connected to the upright plate 101. The end of the support shaft 103 away from the drive shaft 102 extends out from the threaded sleeve 110. The support shaft 103 and the threaded sleeve 110 are threadedly connected. The end of the support shaft 103 extending out of the threaded sleeve 110 is provided with a turntable 111. The turntable 111 is fixedly connected to the support shaft 103. The mounting rod 104 is provided with a fixing component for fixing the gear 114. The table 100 is provided with a nylon brush 105 for grinding the gear 114. The nylon brush 105 is an abrasive filament nylon brush 105 made of nylon base material mixed with abrasive particles. The abrasive filling particles are alumina, silicon carbide, ceramic particles, etc. The table 100 is provided with a drive component for driving the nylon brush 105 to reciprocate.

[0023] In this embodiment, the fixing component includes a limiting plate 106 disposed on one side of the mounting rod 104, the limiting plate 106 being fixedly connected to the mounting rod 104, and a nut 107 with a threaded connection disposed on the other side of the mounting rod 104. A washer 108 is disposed on the mounting rod 104 between the nut and the gear 114 and is used to abut against the gear 114. The washer 108 is sleeved on the mounting rod 104. A rubber pad 109 is disposed on the side wall of the limiting plate 106 and the washer 108 facing the gear 114. The rubber pad 109 is sleeved on the mounting rod 104 and is used to prevent the limiting plate 106 and the washer 108 from squeezing the gear 114 and causing damage to the gear 114 when the nut 107 is tightened.

[0024] In this embodiment, when grinding the burrs between the teeth of gear 114, the turntable 111 is rotated, causing the support shaft 103 to move away from the mounting rod 104 until the conical column 113 is completely disengaged from the conical hole. After the conical column 113 is completely disengaged from the conical hole, the mounting rod 104 is removed from between the drive shaft 102 and the support shaft 103. Then, the nut 107, washer 108, and rubber pad 109 near the washer 108 on the mounting rod 104 are removed. Next, multiple gears 114 to be ground are fitted onto the mounting rod 104. After the gears 114 are fitted, the removed rubber pad 109 and washer 108 are sequentially fitted onto the mounting rod 104. Then, the nut 107 is tightened to fix the multiple gears 114 to be ground. The gears 114 are fixed on the mounting rod 104. After the key block 112 is fixed in place, it is aligned with the keyway and inserted into the keyway. Then, the turntable 111 is rotated to drive the tapered column 113 into the tapered hole, completing the installation of the mounting rod 104 between the drive shaft 102 and the support shaft 103. After installation, the nylon brush 105 is driven to reciprocate between multiple gears 114 by the drive assembly. At the same time, the mounting rod 104 is driven to rotate by the drive shaft 102. The rotation of the mounting rod 104 can drive the gears 114 to rotate. While the gears 114 are rotating, the rotation and reciprocating movement of the nylon brush 105 can polish and deburr the multiple gears 114 on the mounting rod 104, thus solving the problem of installing and polishing each gear 114 one by one and improving polishing efficiency.

[0025] Please see Figures 1-3 In this embodiment, a slide rail 200 is provided on the table 100, and the slide rail 200 is fixedly connected to the table 100. A slidable support block 201 is provided on the slide rail 200, and the support block 201 is slidably connected to the slide rail 200. A square plate 202 is provided on the support block 201, and the square plate 202 is fixedly connected to the support block 201. A track 203 is provided on the square plate 202, and the track 203 is fixedly connected to the square plate 202. A slidable mounting plate 204 is provided on the track 203, and the mounting plate 204 is slidably connected to the track 203. A cylinder 205 for driving the mounting plate 204 to slide is provided on the square plate 202.

[0026] The mounting plate 204 is provided with a support frame, which is fixedly connected to the mounting plate 204. The support frame is provided with a first motor 206 for driving the nylon brush 105 to rotate. The nylon brush 105 is fixedly connected to the output shaft of the first motor 206. The drive assembly includes a fixed plate 300 disposed on the platform 100. The fixed plate 300 is fixedly connected to the platform 100. A rotatable lead screw 301 is provided between the fixed plates 300. The lead screw 301 is a reciprocating lead screw. The lead screw 301 is mounted between the fixed plates 300 through bearings. A slider 302 connected to the square plate 202 is provided on the lead screw 301. The slider 302 is threadedly connected to the lead screw 301. A guide rod 303 is provided between the fixed plates 300. The guide rod 303 is fixedly connected to the fixed plate 300. An extension block 304 connected to the guide rod 303 is provided on the slider 302. The extension block 304 is fixedly connected to the slider 302. A second motor 305 for driving the lead screw 301 to rotate is provided on the platform 100.

[0027] A driven sprocket 306 is provided on the drive shaft 102 and is fixedly connected to the drive shaft 102. A drive sprocket 307 is provided on the lead screw 301 and is fixedly connected to the rotating end of the lead screw 301. A chain 308 is provided between the drive sprocket 307 and the driven sprocket 306.

[0028] In this embodiment, the mounting plate 204 is slid by the cylinder 205, which can cause the bristles on the nylon brush 105 to contact or not contact the gear 114. Before or after grinding the gear 114, the mounting plate 204 can be slid by the cylinder 205, causing the nylon brush 105 to move away from the gear 114 until the bristles do not contact the gear 114, so that the mounting rod 104 can be installed between the drive shaft 102 and the support shaft 103. When grinding the gear 114, the mounting plate 204 can be slid by the cylinder 205, causing the nylon brush 105 to move toward the gear 114 until the bristles contact the gear 114. After the bristles contact the gear 114, the first motor 206 can be started to drive the nylon brush 105 to rotate at high speed to grind the gear 114.

[0029] In this embodiment, when the second motor 305 drives the lead screw 301 to rotate, it can drive the slider 302 to move back and forth. The movement of the slider 302 can drive the square plate 202 to move back and forth. The reciprocating movement of the square plate 202 can drive the nylon brush 105 to move back and forth between multiple gears 114. At the same time, through the cooperation of the driving sprocket 307, the driven sprocket 306 and the chain 308, the drive shaft 102 can be driven to rotate. The rotation of the drive shaft 102 can drive the mounting rod 104 to rotate, so that the gears 114 on the mounting rod 104 can rotate. Thus, while the nylon brush 105 moves back and forth between multiple gears 114, the gears 114 can rotate at the same time, so that each tooth surface of the gear 114 can evenly contact the bristles, avoiding over-polishing on one side and under-polishing on another side.

[0030] In this embodiment, the rotation speed of the lead screw 301 and the drive rod can be controlled by setting the tooth ratio of the driving sprocket 307 and the driven sprocket 306, so as to uniformly polish the gear 114.

[0031] In use, when grinding the burrs between the teeth of gear 114, the turntable 111 is rotated, causing the support shaft 103 to move away from the mounting rod 104 until the conical column 113 is completely disengaged from the conical hole. After the conical column 113 is completely disengaged from the conical hole, the mounting rod 104 is removed from between the drive shaft 102 and the support shaft 103. Then, the nut 107, washer 108, and rubber pad 109 near the washer 108 on the mounting rod 104 are removed. Next, multiple gears 114 to be ground are fitted onto the mounting rod 104. After the gears 114 are fitted, the removed rubber pad 109 and washer 108 are sequentially fitted onto the mounting rod 104. Finally, the nut 107 is tightened to grind the multiple gears 114 to be ground. After the gear 114 is fixed on the mounting rod 104, the key block 112 is aligned with the keyway and inserted into the keyway. Then, the turntable 111 is rotated to drive the tapered column 113 into the tapered hole, completing the installation of the mounting rod 104 between the drive shaft 102 and the support shaft 103. After installation, the starting cylinder 205 pushes the nylon brush 105 into contact with the gear 114. After contact, the first motor 206 is started to drive the nylon brush 105 to rotate. Then, the second motor 305 is started to drive the nylon brush 105 to reciprocate between multiple gears 114. At the same time, the drive shaft 102 drives the mounting rod 104 to rotate. The rotation of the mounting rod 104 drives the gear 114 to rotate, thus grinding and deburring multiple gears 114.

[0032] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A polishing mechanism, comprising a table (100), characterized in that: On the tabletop (100), there are upright plates (101) facing each other. One upright plate (101) is provided with a rotatable drive shaft (102), and the other upright plate (101) is provided with a telescopic support shaft (103). Between the drive shaft (102) and the support shaft (103), there is a rotatable mounting rod (104) for mounting a gear (114). The mounting rod (104) is provided with a fixing component for fixing the gear (114). The tabletop (100) is provided with a nylon brush (105) for grinding the gear (114). The tabletop (100) is provided with a drive component for driving the nylon brush (105) to reciprocate.

2. The polishing mechanism according to claim 1, characterized in that: The fixing assembly includes a limiting plate (106) on one side of the mounting rod (104), a nut (107) with threaded connection on the other side of the mounting rod (104), a washer (108) on the mounting rod (104) for being located between the nut (107) and the gear (114) and abutting the gear (114), and a rubber pad (109) on the limiting plate (106) and the washer (108).

3. The polishing mechanism according to claim 1, characterized in that: A slide rail (200) is provided on the table (100), a slidable support block (201) is provided on the slide rail (200), a square plate (202) is provided on the support block (201), a track (203) is provided on the square plate (202), a slidable mounting plate (204) is provided on the track (203), a cylinder (205) for driving the mounting plate (204) to slide is provided on the square plate (202), a support frame is provided on the mounting plate (204), and a first motor (206) for driving the nylon brush (105) to rotate is provided on the support frame.

4. A polishing mechanism according to claim 1, characterized in that: The drive assembly includes a fixed plate (300) disposed opposite to the table (100), a rotatable lead screw (301) between the fixed plates (300), a slider (302) connected to a square plate (202) on the lead screw (301), a guide rod (303) between the fixed plates (300), an extension block (304) connected to the guide rod (303) on the slider (302), and a second motor (305) for driving the lead screw (301) to rotate on the table (100).

5. A polishing mechanism according to claim 4, characterized in that: A driven sprocket (306) is provided on the drive shaft (102), a driving sprocket (307) is provided on the lead screw (301), and a chain (308) is provided between the driving sprocket (307) and the driven sprocket (306).

6. A polishing mechanism according to claim 1, characterized in that: The upright plate (101) is provided with a threaded sleeve (110) for mounting the support shaft (103). The end of the support shaft (103) away from the drive shaft (102) is extended by the threaded sleeve (110), and a turntable (111) is provided at the end of the support shaft (103) extending out of the threaded sleeve (110).

7. A polishing mechanism according to claim 1, characterized in that: The drive shaft (102) has a key block (112) at the end facing the mounting rod (104), and the mounting rod (104) has a keyway corresponding to the key block (112). The support shaft (103) has a tapered column (113) at the end facing the mounting rod (104), and the mounting rod (104) has a tapered hole corresponding to the tapered column (113).

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