Workbench rotating structure of round table surface grinding machine

Abstract

The utility model provides a workbench rotating structure of a round table surface grinding machine, and relates to the technical field of grinding machine structures. The grinding machine is used for solving the technical problem that the whole grinding disc needs to be replaced and is luxury when partial area of the grinding disc of an existing grinding machine is seriously abraded or collided and damaged. A workbench rotating structure of a round table surface grinding machine comprises a bottom plate, a motor, belt wheels, a flat belt, a rotating rod and a rotating disc, the motor is installed on the bottom plate, the rotating rod is rotationally arranged on the bottom plate, the rotating disc is fixedly connected to the rotating rod, the belt wheels are fixedly connected to an output shaft of the motor and the rotating rod, and the flat belt is jointly arranged on the two belt wheels. The grinding piece can be replaced by rotating the fixing screw to be separated from the rotating disc and the grinding piece, then a new grinding piece can be fixed to the rotating disc by reversely rotating the fixing screw, and the effect that only a single grinding piece which is seriously abraded or damaged is replaced is achieved.

Description

Technical Field

[0001] The utility model provides a worktable rotating structure of a circular table surface grinder, and relates to the technical field of grinder structures. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use high-speed rotating grinding wheels for grinding, while a few use other grinding tools such as oilstones, abrasive belts, and free abrasives for processing. Grinding machines can process materials with higher hardness, such as hardened steel, cemented carbide, etc.; they can also process brittle materials, such as glass and granite. Grinding machines can perform high-precision grinding with very small surface roughness, and can also perform high-efficiency grinding, such as strong grinding.

[0003] The patent with the patent authorization announcement number CN215432922U discloses a grinding machine, which drives the one-way bearing to rotate clockwise through the internal shaft of the motor, so that the inner and outer rings of the entire one-way bearing rotate clockwise. When the internal shaft of the motor stops rotating, the outer ring of the one-way bearing continues to rotate due to inertia, and through the transmission of the transmission belt, the fan is driven to rotate, blowing the air flow so that the debris generated by the valve core and the grinding disc can be collected. However, the grinder provided by the patent still has shortcomings in actual use. Since the grinding disc is a single-body structure, when some areas of the grinding disc are severely worn or damaged by collision and fracture, the entire grinding disc needs to be disassembled and replaced, which is too extravagant and wasteful from the perspective of economic cost.

[0004] Therefore, it is necessary to provide a worktable rotating structure of a circular table surface grinder capable of replacing grinding sheets. Utility Model Content

[0005] In order to overcome the disadvantage of the existing patent that when a part of the grinding disc of the grinding machine is severely worn or damaged by collision, the entire grinding disc needs to be replaced, which is a relatively luxurious thing, the utility model provides a worktable rotating structure of a circular table surface grinder capable of replacing the grinding disc.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions: a worktable rotating structure of a circular table surface grinder, including a base plate, a motor, a pulley, a flat belt, a rotating rod and a turntable, the motor is installed on the base plate, the rotating rod is rotatably arranged on the base plate, the turntable is fixedly connected to the rotating rod, the output shaft of the motor and the rotating rod are both fixedly connected to the pulley, the two pulleys are jointly provided with a flat belt, and also include grinding plates and fixing screws, a plurality of grinding plates are arranged on the turntable, and a plurality of fixing screws are jointly threadedly arranged on the grinding plates and the turntable.

[0007] More preferably, the grinding sheet is fan-shaped.

[0008] More preferably, six fixing screws are provided on a single grinding plate, and the fixing screws are sunk into the grinding plate.

[0009] More preferably, it further comprises a protective shell, the protective shell is installed on the bottom plate, the motor, the pulley and the flat belt are all located in the protective shell, and the rotating rod penetrates the protective shell.

[0010] More preferably, sound-absorbing cotton is also included, and the inner wall of the protective shell is fixedly connected with the sound-absorbing cotton.

[0011] More preferably, reinforcing ribs are further included, and a plurality of reinforcing ribs are fixedly connected between the rotating rod and the rotating disk.

[0012] Compared with the prior art, the grinding machine rotating structure provided by the embodiment of the utility model has the following advantages: 1. The grinding plate can be replaced by rotating the fixing screw to disengage the turntable and the grinding plate, and then the new grinding plate can be fixed on the turntable by rotating the fixing screw in the opposite direction, thereby achieving the effect of replacing only a single severely worn or damaged grinding plate.

[0013] 2. The output shaft of the motor drives the pulley to rotate, and the flat belt drives the pulley on the rotating rod to rotate synchronously, so that the rotating rod drives the turntable to rotate on the bottom plate, and the turntable grinds the workpiece through the grinding disc to achieve the effect of grinding the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the motor, pulley and flat belt of the utility model.

[0016] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the grinding disc and the fixing screw of the utility model.

[0017] Figure 4 Practical Figure 3 Enlarged view of point A in the middle.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the grinding sheet, protective shell and reinforcing ribs of the utility model.

[0019] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the bottom plate, protective shell and sound-absorbing cotton of the utility model.

[0020] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the motor, rotating rod and protective shell of the utility model.

[0021] The markings of the components in the attached drawings are as follows: 1. base plate, 2. motor, 3. pulley, 4. flat belt, 5. rotating rod, 6. turntable, 7. grinding disc, 8. fixing screws, 9. protective shell, 10. sound-absorbing cotton, 11. reinforcing ribs. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: A worktable rotating structure of a circular table surface grinder, see Figure 1-Figure 4 As shown, it includes a base plate 1, a motor 2, a pulley 3, a flat belt 4, a rotating rod 5 and a turntable 6. The motor 2 is installed on the base plate 1 by bolt connection. The rotating rod 5 is rotatably arranged on the base plate 1. The top of the rotating rod 5 is fixedly connected to the turntable 6 by welding. The output shaft of the motor 2 and the rotating rod 5 are fixedly connected with the pulley 3 by a key. The two pulleys 3 are jointly provided with a flat belt 4 for transmission. It also includes a grinding sheet 7 and a fixing screw 8. The turntable 6 is provided with a plurality of grinding sheets 7 for grinding workpieces. The grinding sheets 7 are fan-shaped. The grinding sheets 7 and the turntable 6 are jointly provided with a plurality of fixing screws 8 in a threaded manner. Six fixing screws 8 are arranged on a single grinding sheet 7, and the fixing screws 8 are sunk into the grinding sheet 7 to avoid friction between the fixing screws 8 and the workpiece.

[0024] When it is necessary to grind the workpiece, the motor 2 is started, and the output shaft of the motor 2 drives the pulley 3 to rotate, and the pulley 3 on the rotating rod 5 is driven by the transmission of the flat belt 4 to rotate synchronously, so that the rotating rod 5 drives the turntable 6 to rotate on the base plate 1, and the turntable 6 grinds the workpiece through the grinding disc 7; when a single grinding disc 7 is severely worn or damaged, the grinding disc 7 can be replaced by rotating the fixing screw 8 to disengage the turntable 6 and the grinding disc 7, and then the new grinding disc 7 can be fixed on the turntable 6 by rotating the fixing screw 8 in the opposite direction.

[0025] Example 2: Based on Example 1, refer to Figure 5-Figure 7 As shown, it also includes a protective shell 9, and the protective shell 9 for protecting parts is installed on the bottom plate 1 by bolt connection. The motor 2, the pulley 3 and the flat belt 4 are all located in the protective shell 9, and the rotating rod 5 penetrates the protective shell 9; it also includes sound-absorbing cotton 10, and the inner wall of the protective shell 9 is fixedly connected with the sound-absorbing cotton 10 for absorbing noise by bonding; it also includes reinforcing ribs 11, and four reinforcing ribs 11 for enhancing the connection stability are fixedly connected between the rotating rod 5 and the turntable 6 by welding.

[0026] The protective shell 9 can protect the motor 2, the pulley 3 and the flat belt 4 to prevent the components from being damaged by collision; the sound-absorbing cotton 10 can absorb and reduce the noise generated when the motor 2 is working, and reduce the sound generated during work; the reinforcing ribs 11 reinforce the connection between the rotating rod 5 and the turntable 6, so that the stability of the turntable 6 and the rotating rod 5 is enhanced, and it is not easy to deviate and break.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A worktable rotating structure of a circular table surface grinder, comprising a base plate (1), a motor (2), a pulley (3), a flat belt (4), a rotating rod (5) and a rotating disk (6), wherein the motor (2) is mounted on the base plate (1), a rotating rod (5) is rotatably arranged on the base plate (1), the rotating disk (6) is fixedly connected to the rotating rod (5), the output shaft of the motor (2) and the rotating rod (5) are both fixedly connected to the pulley (3), and the two pulleys (3) are jointly provided with a flat belt (4), wherein the structure is characterized in that: It also includes a grinding sheet (7) and a fixing screw (8). A plurality of grinding sheets (7) are arranged on the turntable (6), and a plurality of fixing screws (8) are threadedly arranged on the grinding sheets (7) and the turntable (6).

2. A worktable rotating structure of a circular table surface grinder according to claim 1, characterized in that: The grinding sheet (7) is fan-shaped.

3. The worktable rotating structure of a circular table surface grinder according to claim 1, characterized in that: Six fixing screws (8) are arranged on a single grinding sheet (7), and the fixing screws (8) are sunk into the grinding sheet (7).

4. The worktable rotating structure of a circular table surface grinder according to claim 1, characterized in that: It also includes a protective shell (9), the protective shell (9) is installed on the bottom plate (1), the motor (2), the pulley (3) and the flat belt (4) are all located in the protective shell (9), and the rotating rod (5) penetrates the protective shell (9).

5. A worktable rotating structure of a circular table surface grinder according to claim 4, characterized in that: It also includes sound-absorbing cotton (10), and the inner wall of the protective shell (9) is fixedly connected with the sound-absorbing cotton (10).

6. The worktable rotating structure of a circular table surface grinder according to claim 1, characterized in that: It also includes reinforcing ribs (11), and a plurality of reinforcing ribs (11) are fixedly connected between the rotating rod (5) and the rotating disk (6).

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