Polishing device for magnesium alloy die casting

Abstract

The polishing device of the magnesium alloy die casting comprises a ventilation sleeve, a separation air guide frame is installed on the inner side of the ventilation sleeve, a transmission motor is installed on the inner side of the separation air guide frame, a conical supporting ring is installed at the bottom end of the transmission motor, a plurality of second flow guide kidney-shaped holes are formed in the surface of the conical supporting ring, and a plurality of second flow guide kidney-shaped holes are formed in the surface of the conical supporting ring. A hollow transmission shaft is fixedly mounted at the output end of the transmission motor, a plurality of first flow guide kidney-shaped holes are formed in the outer surface of the upper end of the hollow transmission shaft, a connecting ring is mounted on the outer side of the bottom end of the ventilation sleeve, a limiting ring is mounted on the inner side of the bottom end of the connecting ring, and a dust collection protective cover is slidably connected to the inner side of the limiting ring. According to the polishing device, waste chips generated by polishing the surface of the magnesium alloy die casting are fully removed, the situation that the surface of the magnesium alloy die casting is scratched by the waste chips in the polishing process is effectively avoided, and heat dissipation of a polishing driving source is not convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to polishing technical field, concretely to a polishing device of magnesium alloy die casting. BACKGROUND

[0002] Magnesium alloy die casting is widely used in automobile, electronic, household appliance, communication, instrument manufacturing and aerospace, etc., and has the characteristics of light weight, moderate density, excellent specific strength and specific stiffness, good dimensional stability, superior electromagnetic shielding performance, strong corrosion resistance, significant shock absorption effect, excellent processing performance, easy processing, low processing cost and excellent flowability. 3 Between 1.90g / cm 3 , and has the characteristics of light weight, moderate density, excellent specific strength and specific stiffness, good dimensional stability, superior electromagnetic shielding performance, strong corrosion resistance, significant shock absorption effect, excellent processing performance, easy processing, low processing cost and excellent flowability.

[0003] When polishing the surface of magnesium alloy die casting, a large amount of waste chips are easily generated, and if the waste chips are not removed in time, they will scratch the surface of the magnesium alloy die casting, and it is not convenient to dissipate heat from the polishing drive source. UTILITY MODEL CONTENTS

[0004] The utility model discloses a polishing device of magnesium alloy die casting, to solve the problem that when polishing the surface of magnesium alloy die casting, a large amount of waste chips are easily generated, and if the waste chips are not removed in time, they will scratch the surface of the magnesium alloy die casting, and it is not convenient to dissipate heat from the polishing drive source.

[0005] To achieve the above object, the utility model provides the following technical scheme: a polishing device of magnesium alloy die casting, including ventilation sleeve, the inside of ventilation sleeve is installed with the separate guide frame, the inside of separate guide frame is installed with transmission motor, the bottom of transmission motor is installed with conical support ring, the surface of conical support ring is equipped with a plurality of second flow guide waist type hole, the output of transmission motor is fixedly installed with hollow transmission shaft, the outer surface of hollow transmission shaft upper end is equipped with a plurality of first flow guide waist type hole, the outside of ventilation sleeve bottom is installed with connecting ring, the inside of connecting ring bottom is installed with limit ring, the inside of limit ring is slidably connected with dust collection protective cover, support spring is equipped between limit ring and dust collection protective cover, the lower end surface of dust collection protective cover is fixedly equipped with shock pad.

[0006] Preferably, one side of the ventilation sleeve is fixedly provided with an operating handle, an inner side of the upper end of the ventilation sleeve is fixedly provided with a conical connecting sleeve, an inner side of the upper end of the conical connecting sleeve is fixedly provided with an air guide pipe, and the upper end of the ventilation sleeve is fixedly connected with the air guide pipe through the conical connecting sleeve.

[0007] Preferably, the bottom end of the hollow transmission shaft is fixedly provided with a grinding disc, the lower end surface of the grinding disc is provided with two pressing rings, and a polishing sandpaper is arranged between the two pressing rings.

[0008] Preferably, an outer dust removal cavity is arranged between the dust collection protective cover and the grinding disc, a central dust removal cavity is arranged between the middle part of the grinding disc and the hollow transmission shaft, the outer dust removal cavity and the central dust removal cavity are throughly connected through a plurality of first flow guide waist-type holes, and the outer dust removal cavity and the ventilation sleeve are throughly connected through a plurality of second flow guide waist-type holes.

[0009] Preferably, the connecting ring is fixedly connected with the ventilation sleeve through the second flow guide waist-type hole, the partition air guide frame is inserted between the ventilation sleeve and the transmission motor, the partition air guide frame is fixedly connected with the ventilation sleeve through the second flow guide waist-type hole, and the partition air guide frame is composed of a plurality of spoke arranged in a circle.

[0010] Preferably, the upper end of the dust collection protective cover is connected with the limiting ring through a supporting spring, the upper and lower ends of the connecting ring are connected with the ventilation sleeve and the limiting ring through threads, and the dust collection protective cover linearly reciprocally slides along the axis of the hollow transmission shaft.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、 the utility model discloses a transmission motor is driven grinding disc to rotate through hollow transmission shaft, is held to whole through operating handle and is pasted to the surface of magnesium alloy die casting through damping pad and magnesium alloy die casting of dust collection protective cover to the surface of magnesium alloy die casting of polishing disc is driven polishing sandpaper high -speed rotation and is polished through two pressing rings and is operated, the waste chip in the middle part of polishing disc can be extracted to the inner side of outer dust removal cavity through central dust removal cavity and a plurality of first flow guide waist -type hole, the waste chip generated in the process of polishing the surface of magnesium alloy die casting can be fully extracted through the conical connecting sleeve of air guide pipe, improves the cleanness after polishing the surface of magnesium alloy die casting, avoids the scratch of magnesium alloy die casting's surface to the waste chip when polishing disc moves and polishes.

[0013] 2. The utility model discloses a dust collection protective cover and the polishing disc between the waste chip can be extracted to the ventilation sleeve and transmission motor through the outer layer dust removal cavity and a plurality of second flow guide waist type hole, is installed with the separation air guide frame between the ventilation sleeve and transmission motor, make through the separation air guide frame can separate the ventilation sleeve with transmission motor and realize the flow guiding of waste chip, convenient for the full heat dissipation operation of transmission motor continuously. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the whole cross section structure schematic diagram of the utility model;

[0016] Figure 3 It is the installation structure schematic diagram of the separation air guide frame of the utility model;

[0017] Figure 4 It is the structure schematic diagram of the polishing disc of the utility model.

[0018] In the drawing: 1, operating handle;2, ventilation sleeve;3, dust collection protective cover;4, air guide pipe;5, conical connecting sleeve;6, separation air guide frame;7, conical support ring;8, connecting ring;9, limit ring;10, support spring;11, shock pad;12, polishing sandpaper;13, pressure ring;14, polishing disc;15, hollow transmission shaft;16, first flow guide waist type hole;17, second flow guide waist type hole;18, transmission motor;19, outer layer dust removal cavity;20, central dust removal cavity. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] The transmission motor 18 (model number GV50-3.7KW-60-S) mentioned in the utility model can be obtained from market purchase or private customization.

[0021] Please refer to Figures 1 to 3 The utility model provides an embodiment: a polishing device for magnesium alloy die castings, comprising a ventilation sleeve 2, an operating handle 1 is fixedly installed on one side of the ventilation sleeve 2, a conical connecting sleeve 5 is installed on the inner side of the upper end of the ventilation sleeve 2, an air guide pipe 4 is installed on the inner side of the upper end of the conical connecting sleeve 5, the upper end of the ventilation sleeve 2 is fixedly connected with the air guide pipe 4 through the conical connecting sleeve 5, the ventilation sleeve 2 and the air guide pipe 4 are through connection through the conical connecting sleeve 5, the air guide pipe 4 can fully extract the waste chip generated in the surface polishing process of the magnesium alloy die casting through the conical connecting sleeve 5;

[0022] The inner side of the ventilation sleeve 2 is provided with a partition air guide frame 6, the inner side of the partition air guide frame 6 is provided with a transmission motor 18, the bottom end of the transmission motor 18 is provided with a conical support ring 7, the surface of the conical support ring 7 is provided with a plurality of second flow guide waist type holes 17, the output end of the transmission motor 18 is fixedly provided with a hollow transmission shaft 15, the bottom end of the hollow transmission shaft 15 is fixedly provided with a polishing disc 14, the lower end surface of the polishing disc 14 is provided with two compression rings 13, one polishing sandpaper 12 is arranged between the two compression rings 13, the polishing disc 14 and the polishing sandpaper 12 are fixedly connected through the two compression rings 13, the lower end surface of the polishing sandpaper 12 is in the same horizontal plane as the lower end surface of the damping pad 11, so that the transmission motor 18 is supported by the partition air guide frame 6 and the second flow guide waist type hole 17 and rotates the polishing disc 14 through the hollow transmission shaft 15.

[0023] Please refer to Figure 2 and Figure 3 , the outer surface of the upper end of the hollow transmission shaft 15 is provided with a plurality of first flow guide waist type holes 16, the outer side of the bottom end of the ventilation sleeve 2 is provided with a connecting ring 8, the inner side of the bottom end of the connecting ring 8 is provided with a limiting ring 9, the inner side of the limiting ring 9 is slidably connected with a dust collection protective cover 3, the connecting ring 8 and the ventilation sleeve 2 are fixedly connected through the second flow guide waist type hole 17, the partition air guide frame 6 is inserted between the ventilation sleeve 2 and the transmission motor 18, the partition air guide frame 6 and the ventilation sleeve 2 are fixedly connected through the second flow guide waist type hole 17, the partition air guide frame 6 is composed of a plurality of spoke arranged in a circle, the partition air guide frame 6 can separate the ventilation sleeve 2 and the transmission motor 18 and guide the waste, which is convenient for continuously and fully heat the transmission motor 18.

[0024] Please refer to Figure 2 , the limiting ring 9 and the dust collection protective cover 3 are provided with a supporting spring 10, the lower end surface of the dust collection protective cover 3 is fixedly provided with a damping pad 11, the upper end of the dust collection protective cover 3 is connected with the limiting ring 9 through the supporting spring 10, the upper and lower ends of the connecting ring 8 are connected with the ventilation sleeve 2 and the limiting ring 9 through threads, the dust collection protective cover 3 linearly reciprocates along the axis of the hollow transmission shaft 15, the dust collection protective cover 3 and the surface of the magnesium alloy die casting can be stably attached through the supporting spring 10, thereby improving the extraction effect of the waste.

[0025] Please refer to Figure 2 and Figure 4 , the dust collection protective cover 3 and the polishing disc 14 are provided with an outer dust removal cavity 19, the center of the polishing disc 14 and the hollow transmission shaft 15 are provided with a central dust removal cavity 20, the outer dust removal cavity 19 and the central dust removal cavity 20 are connected through a plurality of first flow guide waist type holes 16, the outer dust removal cavity 19 and the ventilation sleeve 2 are connected through a plurality of second flow guide waist type holes 17, the waste generated in the polishing process can be fully extracted through the outer dust removal cavity 19 and the central dust removal cavity 20.

[0026] In use, when polishing the surface of the magnesium alloy die casting, the transmission motor 18 is placed on the inner side of the partition air guide frame 6 and fixedly connected with the ventilation sleeve 2 through the second flow guide waist hole 17 to achieve the fixed installation of the transmission motor 18, the power supply is turned on, the transmission motor 18 is started, the transmission motor 18 is driven to rotate by the hollow transmission shaft 15 under the support of the partition air guide frame 6 and the second flow guide waist hole 17 to drive the polishing disc 14 to rotate, the whole is held by operating the handle 1, and the dust collection protective cover 3 is attached to the surface of the magnesium alloy die casting through the damping pad 11, so that the polishing disc 14 drives the polishing sandpaper 12 to rotate at high speed through the two pressing rings 13 and polishes the surface of the magnesium alloy die casting;

[0027] The outer dust removal cavity 19 is arranged between the dust collection protective cover 3 and the polishing disc 14, the central dust removal cavity 20 is arranged between the middle part of the polishing disc 14 and the hollow transmission shaft 15, the outer dust removal cavity 19 and the ventilation sleeve 2 are throughly connected through a plurality of second flow guide waist holes 17, the outer dust removal cavity 19 and the central dust removal cavity 20 are throughly connected through a plurality of first flow guide waist holes 16, the air exhaust operation is performed through the air guide pipe 4, and then the waste chips in the middle part of the polishing disc 14 can be extracted to the inner side of the outer dust removal cavity 19 through the central dust removal cavity 20 and the plurality of first flow guide waist holes 16, and the waste chips between the dust collection protective cover 3 and the polishing disc 14 can be extracted to the space between the ventilation sleeve 2 and the transmission motor 18 through the outer dust removal cavity 19 and the plurality of second flow guide waist holes 17;

[0028] The partition air guide frame 6 is installed between the ventilation sleeve 2 and the transmission motor 18, so that the ventilation sleeve 2 and the transmission motor 18 can be separated through the partition air guide frame 6 and the waste chips can be guided, the transmission motor 18 can be continuously and fully cooled, the waste chips generated in the polishing process of the surface of the magnesium alloy die casting can be fully extracted through the tapered connecting sleeve 5 of the air guide pipe 4, the cleanliness of the polished surface of the magnesium alloy die casting is improved, and the surface of the magnesium alloy die casting is prevented from being scratched by the waste chips when the polishing disc 14 moves and polishes.

[0029] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced by the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A polishing device for magnesium alloy die castings, comprising a ventilation sleeve (2), characterized in that: A partition air guide frame (6) is installed on the inner side of the ventilation sleeve (2). A drive motor (18) is installed on the inner side of the partition air guide frame (6). A conical support ring (7) is installed at the bottom end of the drive motor (18). A plurality of second flow guide waist-shaped holes (17) are provided on the surface of the conical support ring (7). A hollow drive shaft (15) is fixedly installed at the output end of the drive motor (18). A plurality of first flow guide waist-shaped holes (16) are provided on the outer surface of the upper end of the hollow drive shaft (15). A connecting ring (8) is installed on the outer side of the bottom end of the ventilation sleeve (2). A limit ring (9) is installed on the inner side of the bottom end of the connecting ring (8). A dust collection protective cover (3) is slidably connected to the inner side of the limit ring (9). A support spring (10) is provided between the limit ring (9) and the dust collection protective cover (3). A shock-absorbing pad (11) is fixedly provided on the lower end face of the dust collection protective cover (3).

2. The polishing device for magnesium alloy die castings according to claim 1, characterized in that: An operating handle (1) is fixedly installed on one side of the ventilation sleeve (2). A conical connecting sleeve (5) is installed on the inner side of the upper end of the ventilation sleeve (2). An air guide pipe (4) is installed on the inner side of the upper end of the conical connecting sleeve (5). The upper end of the ventilation sleeve (2) and the air guide pipe (4) are fixedly connected through the conical connecting sleeve (5). The ventilation sleeve (2) and the air guide pipe (4) are connected through the conical connecting sleeve (5).

3. The polishing device for magnesium alloy die castings according to claim 1, characterized in that: A grinding disc (14) is fixedly installed at the bottom end of the hollow drive shaft (15). Two pressure rings (13) are installed on the lower end face of the grinding disc (14). A polishing sandpaper (12) is installed between the two pressure rings (13). The grinding disc (14) and the polishing sandpaper (12) are fixedly connected by the two pressure rings (13). The lower end face of the polishing sandpaper (12) is on the same horizontal plane as the lower end face of the shock-absorbing pad (11).

4. The polishing device for magnesium alloy die castings according to claim 1, characterized in that: An outer dust removal cavity (19) is provided between the dust collection protective cover (3) and the grinding disc (14). A central dust removal cavity (20) is provided between the middle part of the grinding disc (14) and the hollow drive shaft (15). The outer dust removal cavity (19) and the central dust removal cavity (20) are connected through multiple first guide waist-shaped holes (16). The outer dust removal cavity (19) and the ventilation sleeve (2) are connected through multiple second guide waist-shaped holes (17).

5. The polishing device for magnesium alloy die castings according to claim 1, characterized in that: The connecting ring (8) is fixedly connected to the ventilation sleeve (2) through the second guide waist-shaped hole (17). The partition guide frame (6) is inserted between the ventilation sleeve (2) and the drive motor (18). The partition guide frame (6) is fixedly connected to the ventilation sleeve (2) through the second guide waist-shaped hole (17). The partition guide frame (6) is composed of multiple spokes arranged in a circle.

6. The polishing device for magnesium alloy die castings according to claim 1, characterized in that: The upper end of the dust collection protective cover (3) is connected to the limiting ring (9) through a support spring (10). The upper and lower ends of the connecting ring (8) are connected to the ventilation sleeve (2) and the limiting ring (9) through threads. The dust collection protective cover (3) slides linearly back and forth along the axis of the hollow transmission shaft (15).

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