Protective assembly and metal machining polishing device

Abstract

The utility model relates to the technical field of metal processing and polishing devices, in particular to a protective assembly and a metal processing and polishing device.The protective assembly comprises a first cover body, the first cover body is movably arranged on the surface of a protective cover mounting sleeve in a sleeving mode, the top end of the protective cover mounting sleeve is fixed to the bottom end of an angle grinder body, and a bottom plate is fixed to the bottom end of the protective cover mounting sleeve; one part of a hinge is arranged on the surface of the first cover body, the other part of the hinge is arranged on the surface of the second cover body, and a flange is arranged at the bottom end of the side face of the second cover body; the angle grinder has the beneficial effects that the rotating shaft drives the polishing sheet to rotate at a high speed under the action of the motor in the angle grinder body, protrusions on the surface of metal are polished, and polished metal scraps are thrown to the first cover body, the second cover body and the flange under the centrifugal force while rotating along with the polishing sheet, so that the metal scraps are blocked by the first cover body, the second cover body and the flange; and then the metal chips naturally fall off under the action of self gravity, so that the situation that the metal chips splash everywhere to injure surrounding personnel is avoided.

Description

Technical Field

[0001] The utility model relates to the field of metal processing and grinding devices, in particular to a protection component and a metal processing and grinding device. Background Art

[0002] Metal processing and grinding devices are equipment specially used for grinding, polishing and other processing on metal surfaces. The most common of these is the angle grinder. The angle grinder is small in size and can be hand-held by workers. It is light and flexible to use, has a fast grinding speed and good effect.

[0003] In the prior art, the protective mechanism of the angle grinder is generally a semicircular protective cover, which covers the end of the grinding disc close to the angle grinder handle to prevent the worker from accidentally putting his hand into the area where the grinding disc is when using the angle grinder, thereby causing the grinding disc to damage the worker's hand.

[0004] However, the protective cover used as a protective component of the metal processing and grinding device in the prior art has only a semicircular cover body, and its position is far away from the position where the polishing sheet contacts the metal, which causes the debris ground from the metal surface to splash everywhere, easily causing harm to surrounding personnel. Utility Model Content

[0005] The purpose of the utility model is to provide a protective component and a metal processing and grinding device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a protection component, comprising:

[0007] The first cover body is movably sleeved on the surface of the protective cover mounting sleeve, the top end of the protective cover mounting sleeve is fixed to the bottom end of the angle grinder body, the bottom end of the protective cover mounting sleeve is fixed with a bottom plate, the surface of the first cover body is provided with a part of the hinge, and the other part of the hinge is provided on the surface of the second cover body,

[0008] A flange is arranged at the bottom end of the side surface of the second cover body.

[0009] Preferably, a reed groove is provided on the surface of the first cover body, a reed is arranged in the reed groove, one end of the reed is fixed on the surface of the second cover body, and the other end of the reed is fixed on the inner wall of the reed groove.

[0010] Preferably, the reed slots and reeds are provided in two groups, and the two groups of reed slots and reeds are symmetrically distributed about the first cover body.

[0011] Preferably, a spring is sleeved on the surface of the protective cover mounting sleeve, the top end of the spring abuts against the bottom end of the angle grinder body, and the bottom end of the spring abuts against the top end of the first cover body.

[0012] Preferably, a lifting rod is fixed to the top end of the first cover body, the lifting rod is a "U"-shaped rod structure, and a clamping block is fixed to the bottom end of the cross bar of the lifting rod.

[0013] Preferably, a cam is rotatably connected to the top end of the angle grinder body.

[0014] Preferably, a rotating shaft is rotatably connected to the top end of the angle grinder body, a grinding sheet is arranged on the surface of the rotating shaft, and the grinding sheet is rotatably connected between the first cover body and the second cover body.

[0015] A metal processing and grinding device comprises the protective component.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The protective component and metal processing and grinding device proposed by the utility model are that a worker holds the angle grinder body away from the part of the polishing disc, and the first cover body can provide protection for the worker's hands. The worker holds the angle grinder body so that the polishing disc and the metal surface to be polished form a small angle, and then presses the angle grinder body downward, the flange first contacts the metal surface, and under the action of the hinge, the second cover body and the flange can be lifted up, so that the polishing disc contacts the metal surface to be polished, and the rotating shaft drives the polishing disc to rotate at high speed under the action of the motor in the angle grinder body, and the protrusions on the metal surface are polished off. The polished metal debris is rotated with the polishing disc and is thrown toward the first cover body, the second cover body and the flange under the centrifugal force, so that it is blocked by the first cover body, the second cover body and the flange, and then falls naturally under the action of its own gravity, avoiding the situation where metal debris splashes everywhere and causes harm to surrounding personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the reed slot;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0023] Figure 6 Schematic diagram of the polishing sheet structure;

[0024] Figure 7 is a schematic diagram of the first cover structure;

[0025] Figure 8 It is a schematic diagram of the second cover structure.

[0026] In the figure: an angle grinder body 1, a protective cover mounting sleeve 2, a base plate 3, a first cover body 4, a second cover body 5, a flange 6, a hinge 7, a reed groove 8, a reed 9, a lifting rod 10, a cam 11, a spring 12, a block 13, a polishing disc 14, and a rotating shaft 15. DETAILED DESCRIPTION

[0027] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 8 The utility model provides a technical solution: a protective component, including: a first cover body 4, the first cover body 4 is movably sleeved on the surface of the protective cover mounting sleeve 2, the top of the protective cover mounting sleeve 2 is fixed to the bottom end of the angle grinder body 1, the bottom end of the protective cover mounting sleeve 2 is fixed with a bottom plate 3, the surface of the first cover body 4 is provided with a part of the hinge 7, the other part of the hinge 7 is provided on the surface of the second cover body 5, the side bottom end of the second cover body 5 is provided with a flange 6, the top end of the angle grinder body 1 is rotatably connected with a rotating shaft 15, the surface of the rotating shaft 15 is provided with a polishing sheet 14, and the polishing sheet 14 is rotatably connected between the first cover body 4 and the second cover body 5.

[0030] In actual use, the bottom end of the flange 6 is inclined, and the bottom end of the flange 6 gradually increases in height from the part away from the second cover body 5 to the part close to the second cover body 5. When using the metal processing and grinding device, the worker holds the angle grinder body 1 away from the polishing disc 14, and the first cover body 4 can provide protection for the worker's hands. The worker holds the angle grinder body 1 so that the polishing disc 14 and the metal surface to be polished form a small angle, and then presses the angle grinder body 1 downward, and the flange 6 first contacts with the metal surface, and under the action of the hinge 7, the second cover body 5 and the flange 6 are in contact with the metal surface. The edge 6 can be lifted up so that the polishing sheet 14 contacts the metal surface to be polished. The rotating shaft 15 drives the polishing sheet 14 to rotate at high speed under the action of the motor in the angle grinder body 1, and polishes off the protrusions on the metal surface. The polished metal debris rotates with the polishing sheet 14 and is thrown toward the first cover body 4, the second cover body 5 and the flange 6 under the centrifugal force, thereby being blocked by the first cover body 4, the second cover body 5 and the flange 6, and then naturally falls under the action of its own gravity, thereby preventing the metal debris from splashing everywhere and causing harm to the surrounding personnel.

[0031] Embodiment 2

[0032] On the basis of Example 1, in order to prevent debris from splashing from the gap between the second cover body 5 and the flange 6 after the second cover body 5 is lifted up, a reed groove 8 is provided on the surface of the first cover body 4, and a reed 9 is provided in the reed groove 8. One end of the reed 9 is fixed on the surface of the second cover body 5, and the other end of the reed 9 is fixed on the inner wall of the reed groove 8. Two groups of reed grooves 8 and reeds 9 are provided, and the two groups of reed grooves 8 and reeds 9 are symmetrically distributed about the first cover body 4.

[0033] After the second cover body 5 is lifted up, the reed 9 is pulled out of the reed slot 8 by an end distance, thereby sealing the gap between the first cover body 4 and the second cover body 5 to prevent debris from splashing from the gap between the second cover body 5 and the flange 6. At the same time, the reed 9 is made of elastic metal material. Workers can adjust the angle between the polishing sheet 14 and the metal surface to be polished according to the structure of the metal parts, which will make the second cover body 5 lifted up to different degrees. The reed 9 can extend from the reed slot 8 to different lengths according to the degree to which the second cover body 5 is lifted up.

[0034] Embodiment 3

[0035] On the basis of Example 2, in order to realize the use of the metal processing and grinding device for cutting operations, a bottom plate 3 is fixed to the bottom end of the protective cover mounting sleeve 2, and a spring 12 is sleeved on the surface of the protective cover mounting sleeve 2. The top end of the spring 12 is against the bottom end of the angle grinder body 1, and the bottom end of the spring 12 is against the top end of the first cover body 4. A lifting rod 10 is fixed to the top end of the first cover body 4. The lifting rod 10 is a "U"-shaped rod structure, and a block 13 is fixed to the bottom end of the cross bar of the lifting rod 10. The top end of the angle grinder body 1 is rotatably connected to a cam 11.

[0036] When the metal processing and grinding device is used for grinding operations, under the elastic action of the spring 12, a section of the first cover body 4 is pressed against the top of the base plate 3, which can prevent the first cover body 4 and the second cover body 5 from moving upward along the protective cover mounting sleeve 2 and causing protection failure. When the metal processing and grinding device is used for cutting operations, it is necessary to expose the polishing sheet 14 from the bottom ends of the first cover body 4 and the second cover body 5. At this time, the lifting rod 10 is pulled upward. Driven by the lifting rod 10, the first cover body 4 and the second cover body 5 move upward along the protective cover mounting sleeve 2, so that the polishing sheet 14 is exposed from between the first cover body 4 and the second cover body 5. Then the cam 11 is rotated so that the raised part of the cam 11 is pressed against the bottom end of the lifting rod 10, thereby fixing the height of the lifting rod 10. At the same time, the cam 11 is pressed against the surface of a group of blocks 13 to prevent the cam 11 from automatically rotating back to its original position.

[0037] In actual use, the bottom end of the flange 6 is inclined, and the bottom end of the flange 6 gradually increases in height from the part away from the second cover body 5 to the part close to the second cover body 5. When using the metal processing and grinding device, the worker holds the angle grinder body 1 away from the polishing sheet 14, and the first cover body 4 can provide protection for the worker's hands. The worker holds the angle grinder body 1 so that the polishing sheet 14 and the metal surface to be polished form a small angle, and then presses the angle grinder body 1 downward, and the flange 6 first contacts the metal surface. Under the action of the hinge 7, the second cover body 5 and the flange 6 can be lifted up, so that the polishing sheet 14 contacts the metal surface to be polished. The rotating shaft 15 drives the grinding disc 14 to rotate at a high speed under the action of the motor in the angle grinder body 1, and grinds off the protrusions on the metal surface. The ground metal debris follows the rotation of the grinding disc 14 and is thrown toward the first cover body 4, the second cover body 5 and the flange 6 under the centrifugal force, so that it is blocked by the first cover body 4, the second cover body 5 and the flange 6, and then falls naturally under the action of its own gravity, thereby preventing the metal debris from splashing everywhere and causing harm to the surrounding personnel; after the second cover body 5 is lifted up, the reed 9 is pulled out of the reed groove 8 by an end distance, thereby blocking the gap between the first cover body 4 and the second cover body 5 , to prevent debris from splashing from the gap between the second cover body 5 and the flange 6. At the same time, the spring 9 is made of elastic metal material. The worker can adjust the angle between the polishing sheet 14 and the metal surface to be polished according to the structure of the metal parts, which will make the second cover body 5 be lifted to different degrees. The spring 9 can extend from the spring groove 8 to different lengths according to the degree to which the second cover body 5 is lifted; when the metal processing and polishing device is used for polishing operations, under the elastic action of the spring 12, a section of the first cover body 4 is against the top of the bottom plate 3, which can prevent the first cover body 4 and the second cover body 5 from moving upward along the protective cover mounting sleeve 2. Causes protection failure. When the metal processing and grinding device is used for cutting operations, the polishing sheet 14 needs to be exposed from the bottom ends of the first cover body 4 and the second cover body 5. At this time, the lifting rod 10 is pulled upward. Driven by the lifting rod 10, the first cover body 4 and the second cover body 5 move upward along the protective cover mounting sleeve 2, so that the polishing sheet 14 is exposed from between the first cover body 4 and the second cover body 5. Then the cam 11 is rotated so that the raised part of the cam 11 abuts against the bottom end of the lifting rod 10, thereby fixing the height of the lifting rod 10. At the same time, the cam 11 abuts against the surface of a group of blocks 13 to prevent the cam 11 from automatically rotating back to its original position.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective component, include: The first cover body (4) is characterized in that: the first cover body (4) is movably sleeved on the surface of the protective cover mounting sleeve (2), the top end of the protective cover mounting sleeve (2) is fixed to the bottom end of the angle grinder body (1), and the bottom end of the protective cover mounting sleeve (2) is fixed with a bottom plate (3), a part of the hinge (7) is arranged on the surface of the first cover body (4), and the other part of the hinge (7) is arranged on the surface of the second cover body (5), and a flange (6) is arranged at the bottom end of the side of the second cover body (5).

2. A protective assembly according to claim 1, Features: A reed groove (8) is provided on the surface of the first cover body (4), a reed (9) is arranged in the reed groove (8), one end of the reed (9) is fixed on the surface of the second cover body (5), and the other end of the reed (9) is fixed on the inner wall of the reed groove (8).

3. A protective assembly according to claim 2, Features: The reed slots (8) and reeds (9) are each provided in two groups, and the two groups of reed slots (8) and reeds (9) are symmetrically distributed with respect to the first cover body (4).

4. A protective assembly according to claim 1, Features: A spring (12) is sleeved on the surface of the protective cover mounting sleeve (2), the top end of the spring (12) abuts against the bottom end of the angle grinder body (1), and the bottom end of the spring (12) abuts against the top end of the first cover body (4).

5. A protective assembly according to claim 4, Features: A lifting rod (10) is fixed to the top end of the first cover body (4); the lifting rod (10) is a "U"-shaped rod structure; a clamping block (13) is fixed to the bottom end of the crossbar of the lifting rod (10).

6. A protective assembly according to claim 1, Features: The top end of the angle grinder body (1) is rotatably connected to a cam (11).

7. A protective assembly according to claim 1, Features: The top end of the angle grinder body (1) is rotatably connected to a rotating shaft (15), a polishing sheet (14) is arranged on the surface of the rotating shaft (15), and the polishing sheet (14) is rotatably connected between the first cover body (4) and the second cover body (5).

8. A metal processing and grinding device, Features: The protective component comprises any one of claims 1 to 7.

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