Part grinding mechanism

Abstract

A part polishing mechanism comprises a mounting plate, a motor is fixed to the mounting plate, a rotating shaft is arranged at the output end of the motor, a polishing disc coaxial with the rotating shaft is fixed to the end of the rotating shaft, a mounting cylinder coaxial with the rotating shaft is fixed to the mounting plate, and the end, away from the motor, of the mounting cylinder is open. The periphery of the installation cylinder is slidably sleeved with a cover protection cylinder coaxial with the installation cylinder, the end, away from the motor, of the cover protection cylinder is open, an air inlet hole is formed in the side wall of the end, away from the motor, of the cover protection cylinder, an air outlet pipe is fixedly arranged at the end, close to the motor, of the installation cylinder in a penetrating mode, and a plurality of fan blades exhausting air towards the air outlet pipe are fixed to the rotating shaft. A hollow filtering cover coaxial with the rotating shaft is fixed in the mounting cylinder through a connecting plate, the filtering cover is close to the grinding disc, and a plurality of air passing grooves are formed in the side, away from the grinding face of the grinding disc, of the grinding disc.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts grinding, in particular to a parts grinding mechanism. Background Art

[0002] During the processing of automobile parts, they are generally exposed to the grinding process. The purpose of grinding is to make the surface of the parts smoother and meet the use requirements. There are many devices for workpiece grinding in the existing technology. The specific structure involved in grinding generally includes a motor and a grinding disc located at the output end of the motor.

[0003] Prior art, such as the patent document with publication number "CN208854418U" and titled "A dust suction mechanism for an acrylic plate grinding and polishing machine", discloses a dust suction mechanism for a grinding and polishing machine. The structure mainly includes a grinding sleeve, a rotating spindle is rotatably inserted into the grinding sleeve, one end of the grinding sleeve is connected to a drive mounting cylinder, a spindle motor is arranged in the drive mounting cylinder, the output shaft of the spindle motor is connected to the rotating spindle, the other end of the grinding sleeve is connected to a suction cylinder, an air outlet plate is arranged between the suction cylinder and the grinding sleeve, a plurality of air outlet holes are arranged on the air outlet plate, the suction cylinder is connected to a rotating rod sleeve, a grinding rotating rod is rotatably inserted into the rotating rod sleeve, a suction blade is arranged on the grinding rotating rod, the rotating rod sleeve is connected to a grinding cover, and a dust suction cylinder is arranged on the outside of the rotating rod sleeve.

[0004] The above structure can not only drive the suction blades to rotate and extract air through the grinding rotating rod, but can also directly drive the grinding disc to rotate and grind. However, this document has a considerable defect. During the grinding process, since the grinding disc extends out of the grinding cover, some debris generated during the grinding process will fly out from the grinding cover, and the grinding debris cannot be fully absorbed into the grinding cover. Utility Model Content

[0005] The purpose of this utility model is to address the deficiencies in the existing technology and propose a component grinding mechanism to solve the technical problem that some grinding structures mentioned in the background technology cannot fully absorb dust and debris into the grinding cover during grinding, dust removal and debris removal, thereby resulting in insufficient efficiency in absorbing dust and debris.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A parts grinding mechanism includes a mounting plate, to which a motor is fixed, a rotating shaft is provided at the output end of the motor, a grinding disc coaxial with the rotating shaft is fixed at the end of the rotating shaft, a mounting cylinder coaxial with the rotating shaft is fixed to the mounting plate, the mounting cylinder is open at one end away from the motor, a cover sleeve coaxial with the rotating shaft is slidably sleeved on the periphery of the mounting cylinder, the cover sleeve is open at one end away from the motor, an air inlet is provided on the side wall of the cover sleeve at the end away from the motor, an air outlet pipe is fixedly passed through the mounting cylinder at the end close to the motor, a plurality of fan blades for exhausting air in the direction of the air outlet pipe are fixed on the rotating shaft, a hollow filter cover coaxial with the rotating shaft is fixed in the mounting cylinder through a connecting plate, the filter cover is close to the grinding disc, and a plurality of air slots are provided on the side of the grinding disc away from its grinding surface.

[0008] Working principle:

[0009] The operator places the workpiece such as the automotive parts to be polished on a polishing table, and then drives the mounting plate to drive the motor and the polishing disc to move downward toward the workpiece until the polishing disc can abut against the surface to be polished of the workpiece. At this time, under the action of gravity, the bottom of the opening of the cover sleeve will directly abut against the polishing table, which can provide a sealed polishing environment for polishing.

[0010] After that, the operator starts the motor, and the motor drives the rotating shaft to rotate, and the rotating shaft drives the fan blades and the grinding disc to rotate at the same time, so that the grinding disc can grind the workpiece, and the fan blades can draw air during the grinding process. At this time, the external wind will enter the cover sleeve through the air inlet hole, and then flow through the air groove, filter cover and air outlet pipe on the surface of the grinding disc in turn. Dust and debris are retained in the filter cover, and then the purified air is discharged through the air outlet pipe.

[0011] After the grinding is completed, the operator drives the mounting plate again to drive the grinding disc to rise and lift it.

[0012] The beneficial effects of the utility model are:

[0013] During the use of the utility model, through the arrangement of the cover tube and the mounting tube, when the grinding disc is grinding a workpiece on the grinding table, the grinding disc and the workpiece can be completely covered in a closed environment, so that the dust and debris generated by grinding can be more completely drawn into the filter cover for filtration, and the dust and debris removal effect is more thorough.

[0014] In addition, this structure is provided with the air passage slot during the exhaust process, and the extracted air will pass through the air passage slot, thereby further increasing the efficiency of exhaust in dissipating heat on the grinding disc. Since a certain amount of grinding heat will be generated during the grinding process, this method can better grind and dissipate heat for the grinding disc, thereby achieving further efficiency.

[0015] Furthermore, a mounting ring coaxial with the rotating shaft is fixed in the mounting cylinder, and the rotating shaft passes through the center hole of the mounting ring. A windshield plate that is adapted to the size of the center hole of the mounting ring is fixed on the rotating shaft. The bottom of the filter cover is close to the mounting ring, and the center of the bottom of the filter cover is recessed toward the direction of the motor. An annular air hole is opened on the filter cover near the recess, and the windshield plate is close to the air hole around one end near the motor.

[0016] Furthermore, two opposing springs are provided on the outer wall of the mounting tube, and one end of the shield tube close to the motor is connected to the two springs.

[0017] Furthermore, a plurality of balls are embedded in the bottom of the shield casing and distributed along the bottom.

[0018] Furthermore, a clamping plate is clamped on one side of the filter cover, an operation hole is opened on one side of the mounting tube and at a position corresponding to the clamping plate, and a disassembly plate for blocking the operation hole is detachably provided on the side wall of the mounting tube.

[0019] Furthermore, at least one bolt is threadedly connected to the disassembly plate, and the bolt is threadedly connected to the side wall of the installation cylinder.

[0020] Furthermore, there are multiple air inlet holes, and the multiple air inlet holes are evenly distributed on the outer wall of the circumference of the cover sleeve.

[0021] Furthermore, the air inlet hole is located at the inner end of the inner wall of the shield sleeve and opens toward the motor. The air inlet hole is an inclined hole structure facing the direction of the motor.

[0022] Furthermore, a connecting rod is fixed on the mounting plate, and the connecting rod is fixedly connected to the outer wall of the mounting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of an embodiment of the utility model;

[0024] Figure 2 This is a separate structural diagram of the filter cover;

[0025] Figure 3 This is a separate structural diagram of the grinding disc;

[0026] Figure 4 Schematic diagram of the external outline of one side of the shield casing.

[0027] Explanation of the accompanying drawings: mounting plate 1, motor 2, rotating shaft 3, grinding disc 4, mounting cylinder 5, cover protective cylinder 6, air inlet 7, air outlet duct 8, fan blade 9, connecting plate 10, filter cover 11, air trough 12, mounting ring 13, wind shield 14, air hole 15, spring 16, ball 17, clamping plate 18, disassembly plate 19, bolt 20, connecting rod 21. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0029] like Figure 1 and 3 As shown, a component grinding mechanism includes a mounting plate 1, a motor 2 is fixed on the mounting plate 1, a rotating shaft 3 is provided at the output end of the motor 2, a grinding disc 4 coaxial with the rotating shaft 3 is fixed at the end thereof, a mounting cylinder 5 coaxial with the rotating shaft 3 is fixed to the mounting plate 1, a connecting rod 21 is fixed on the mounting plate 1, and the connecting rod 21 is fixedly connected to the outer wall of the mounting cylinder 5. The mounting tube 5 is open at one end away from the motor 2, and a cover sleeve 6 coaxial with the mounting tube 5 is slidably mounted on the outer periphery of the mounting tube 5. The cover sleeve 6 is open at one end away from the motor 2, and an air inlet 7 is opened on the side wall of the end away from the motor 2. The mounting tube 5 is fixed with an air outlet 8 at the end near the motor 2. A plurality of fan blades 9 are fixed on the rotating shaft 3 to draw air toward the air outlet 8. A hollow filter cover 11 coaxial with the rotating shaft 3 is fixed in the mounting tube 5 through a connecting plate 10. The filter cover 11 is close to the grinding disc 4, and the grinding disc 4 has a plurality of air grooves 12 on the side away from its grinding surface. Through the arrangement of the cover sleeve 6 and the mounting tube 5, when the grinding disc 4 is grinding a workpiece on the grinding table, the grinding disc 4 and the workpiece are completely covered in a closed environment, so that the dust and debris generated by grinding can be more completely drawn into the filter cover 11 for filtration, and the dust and debris removal effect is more thorough. In addition, the present structure is provided with the air passage slot 12 during the exhaust process, and the extracted air will pass through the air passage slot 12 , thereby further increasing the efficiency of exhausting air in dissipating heat for the grinding disc 4 .

[0030] like Figure 1 and Figure 2 As shown, a mounting ring 13 coaxial with the rotating shaft 3 is fixed within the mounting tube 5. The rotating shaft 3 passes through the center hole of the mounting ring 13. A windshield 14, which is sized to fit the center hole of the mounting ring 13, is fixed to the rotating shaft 3. The bottom of the filter cover 11 is adjacent to the mounting ring 13, and the center of the bottom of the filter cover 11 is recessed toward the motor 2. The filter cover 11 has an annular air hole 15 near the recess. The windshield 14 is located near the air hole 15 at one end near the motor 2. After entering the cover tube 6, the air drawn out by the fan blades 9 flows through the air slots 12, then passes through the center hole of the mounting ring 13 in a relatively concentrated manner, and then passes through the portion of the air hole 15 not blocked by the windshield 14 and enters the filter cover 11. This structural arrangement further concentrates dust and debris into the filter cover 11, thereby more thoroughly filtering them.

[0031] like Figure 1 and Figure 2 As shown, two opposing springs 16 are provided on the outer wall of the mounting tube 5. The end of the shield 6 near the motor 2 is connected to the two springs 16. The provision of these springs 16 further presses the bottom of the shield 6 against the grinding table during actual grinding, further preventing vibration of the shield 6 during grinding. This allows dust and debris to escape through the gaps created by the vibration, thereby further confining the dust and debris within the shield 6. The bottom of the shield 6 is embedded with a plurality of balls 17 distributed along its bottom. During the actual grinding process, the grinding disc 4 and shield 6 are translated and adjusted to other positions on the grinding table to grind other parts of the workpiece. As the shield 6 moves on the grinding table, a certain amount of sliding friction is generated between the grinding table and the shield 6. Therefore, the provision of the balls 17 upgrades the sliding friction to rolling friction, further facilitating the movement of the structure during grinding.

[0032] like Figure 1 and Figure 4 As shown, a snap-on plate 18 is attached to one side of the filter cover 11. The snap-on installation of the snap-on plate 18 is achieved by opening a hole. Compared to conventional methods, an operating hole is provided on one side of the mounting tube 5 at a position corresponding to the snap-on plate 18, and a removable disassembly plate 19 for blocking the operating hole is provided on the sidewall of the mounting tube 5. Once a certain amount of debris has accumulated within the filter cover 11, the operator can first remove the disassembly plate 19, then remove the snap-on plate 18 through the operating hole, thereby opening the filter cover 11 from one side. The operator can then use a tool to adjust the angle of the entire structure by rotating and tilting it, so that the debris slides closer to the mounting snap-on plate 18, making it easier for the operator to remove the debris from the inside. At least one bolt 20 is threadedly connected to the disassembly plate 19, which is threadedly connected to the sidewall of the mounting tube 5. This disassembly method is relatively simple, the disassembly operation is also very convenient, and the installation is secure.

[0033] like Figure 1 As shown, there are multiple air inlet holes 7, evenly distributed along the circumferential outer wall of the shield casing 6. This arrangement allows wind to enter the shield casing 6 more evenly, thereby facilitating the adequate extraction of dust and debris. The air inlet holes 7 are located on the inner end of the inner wall of the shield casing 6, with the opening facing the motor 2. The air inlet holes 7 are inclined toward the motor 2. This tilted arrangement of the air inlet holes 7 further prevents debris within the shield casing 6 from escaping through the air inlet holes 7 under the action of the exhaust, further effectively collecting dust and debris.

[0034] Working principle:

[0035] The operator places the workpiece such as the automobile parts to be polished on a polishing table, and then drives the mounting plate 1 to drive the motor 2 and the polishing disc 4 to move downward toward the workpiece until the polishing disc 4 can abut against the surface to be polished of the workpiece. At this time, under the action of gravity and the pushing action of the spring 16, the bottom of the opening of the cover sleeve 6 will directly abut against the polishing table, which can provide a sealed polishing environment for polishing.

[0036] Afterwards, the operator starts the motor 2, and the motor 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the fan blades 9 and the grinding disc 4 to rotate at the same time, so that the grinding disc 4 can grind the workpiece, and the fan blades 9 can exhaust air during the grinding process. At this time, the external wind will enter the cover sleeve 6 through the air inlet hole 7, and then flow through the air groove 12, the filter cover 11 and the air outlet pipe 8 on the surface of the grinding disc 4 in turn. The dust and debris are retained in the filter cover 11, and then the purified air is discharged through the air outlet pipe 8.

[0037] When it is necessary to grind other parts of the workpiece, the overall moving motor 2, the shield sleeve 6 and the grinding disc 4 are horizontally translated on the grinding table. At this time, the grinding disc 4 is out of contact with the workpiece, while the bottom of the shield sleeve 6 continues to abut against the grinding table, thereby making the ball 17 roll and move on the grinding table.

[0038] After the grinding is completed, the operator drives the mounting plate 1 again to drive the grinding disc 4 to rise and lift it.

[0039] After a certain amount of debris accumulates in the filter cover 11, the operator can first remove the disassembly plate 19, and then remove the clamping plate 18 through the operation hole, thereby opening the filter cover 11 from one side. After that, the operator can use tools to rotate and tilt to adjust the angle position of the entire structure, so that the debris slides to a position close to the installation clamping plate 18, making it convenient for the operator to remove the internal debris.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A parts grinding mechanism, characterized in that: The invention comprises a mounting plate (1), a motor (2) is fixed on the mounting plate (1), a rotating shaft (3) is provided at the output end of the motor (2), a grinding disc (4) coaxial with the rotating shaft (3) is fixed at the end of the rotating shaft (3), a mounting cylinder (5) coaxial with the rotating shaft (3) is fixed on the mounting plate (1), the mounting cylinder (5) is open at one end away from the motor (2), a cover sleeve (6) coaxial with the mounting cylinder (5) is slidably sleeved on the periphery of the mounting cylinder (5), the cover sleeve (6) is open at one end away from the motor (2), and the cover sleeve (6) is An air inlet hole (7) is provided on the side wall at the end facing away from the motor (2); an air outlet pipe (8) is fixedly provided on the mounting tube (5) at the end close to the motor (2); a plurality of fan blades (9) for drawing air in the direction of the air outlet pipe (8) are fixed on the rotating shaft (3); a hollow filter cover (11) coaxial with the rotating shaft (3) is fixed in the mounting tube (5) via a connecting plate (10); the filter cover (11) is close to the grinding disc (4), and a plurality of air passage slots (12) are provided on the side of the grinding disc (4) facing away from its grinding surface.

2. A parts grinding mechanism according to claim 1, characterized in that: A mounting ring (13) coaxial with the rotating shaft (3) is fixed in the mounting cylinder (5), and the rotating shaft (3) passes through the center hole of the mounting ring (13). A windshield (14) whose size matches the center hole of the mounting ring (13) is fixed on the rotating shaft (3). The bottom of the filter cover (11) is close to the mounting ring (13), and the center of the bottom of the filter cover (11) is recessed in the direction of the motor (2). An annular air hole (15) is opened on the filter cover (11) near the recess, and the windshield (14) is close to the air hole (15) at the peripheral portion of one end near the motor (2).

3. The component polishing mechanism according to claim 1, characterized in that: Two opposing springs (16) are provided on the outer wall of the installation cylinder (5), and one end of the shielding cylinder (6) close to the motor (2) is connected to the two springs (16).

4. A parts grinding mechanism according to claim 1, characterized in that: The bottom of the shielding tube (6) is embedded with a plurality of rolling balls (17) distributed along the bottom.

5. The component polishing mechanism according to claim 1, characterized in that: A clamping plate (18) is clamped on one side of the filter cover (11), an operation hole is provided on one side of the installation cylinder (5) at a position corresponding to the clamping plate (18), and a disassembly plate (19) for blocking the operation hole is detachably provided on the side wall of the installation cylinder (5).

6. A parts grinding mechanism according to claim 5, characterized in that: At least one bolt (20) is threadedly connected to the disassembly plate (19), and the bolt (20) is threadedly connected to the side wall of the installation cylinder (5).

7. The component polishing mechanism according to claim 1, characterized in that: There are a plurality of air inlet holes (7), and the plurality of air inlet holes (7) are evenly distributed on the outer wall of the circumference of the shield casing (6).

8. The component polishing mechanism according to claim 1, characterized in that: The air inlet hole (7) is located at the inner end of the inner wall of the shield sleeve (6) and opens toward the motor (2). The air inlet hole (7) is an inclined hole structure facing the direction of the motor (2).

9. The component polishing mechanism according to claim 1, characterized in that: A connecting rod (21) is fixed on the mounting plate (1), and the connecting rod (21) is fixedly connected to the outer wall of the mounting cylinder (5).

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