Bench grinding machine

Abstract

The utility model discloses a bench grinder which comprises a base and a machine frame, the top of the base is connected with the machine frame through bolts, the top of the machine frame is connected with a driving motor through bolts, the two sides of the driving motor are connected with protective covers through bolts, annular grooves are formed in the protective covers, and the annular grooves are connected with the driving motor through bolts. An annular baffle is connected in the annular groove in a sleeved mode, an air bag strip is arranged on the side, located on the annular baffle, in the annular groove, an air pump is arranged on the back of the protective cover, and the air outlet end of the air pump communicates with the air bag strip through a pipeline. The bench grinder is simple and compact in structure, low in cost, easy to operate, safer and more efficient to use and suitable for being widely popularized and used.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheel machines, in particular to a desktop grinding wheel machine. Background Art

[0002] A grinding machine is a kind of mechanical processing equipment, which is mainly used to grind various metal workpieces. It is usually composed of a motor, a grinding wheel, a grinding wheel and a protective cover.

[0003] Publication number: CN211414665U discloses a desktop grinding machine, including a base, a column, a workbench, a protective shell, a protective cover, a working motor, a working grinding wheel, an electric control switch, and a detection lens. The base is equipped with a working motor, a working grinding wheel is installed on the rotating shaft of the working motor, the working grinding wheel is equipped with a protective shell, the base is vertically equipped with a column, the column is equipped with a workbench, the position of the groove of the workbench is arranged corresponding to the working grinding wheel, and the protective shell is equipped with a protective cover.

[0004] At present, the existing grinding machines have the following disadvantages when in use: lack of auxiliary clamping mechanism, usually during the operation of the grinding machine, the workpiece needs to be manually held in contact with the high-speed rotating grinding wheel of the grinding machine, misoperation is likely to cause safety hazards, and the stability of handheld processing is relatively general. To this end, we propose a desktop grinding machine. Summary of the invention

[0005] The main purpose of the utility model is to provide a desktop grinding machine, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A desktop grinding machine includes a base and a frame, the top of the base is connected to the frame by bolts, the top of the frame is connected to a driving motor by bolts, both sides of the driving motor are connected to protective covers by bolts, an annular groove is opened in the protective cover, an annular baffle is sleeved in the annular groove, an air bag strip is arranged on one side of the annular baffle in the annular groove, an air pump is arranged on the back of the protective cover, and the air outlet end of the air pump is connected to the air bag strip through a pipeline.

[0008] Furthermore, a return spring is provided on the outer periphery of the annular baffle in the annular groove.

[0009] Furthermore, a grinding wheel is mounted in the protective cover via a bearing, and the driving motor is connected to the grinding wheel via a driving shaft, and the protective cover is mounted with the grinding wheel via the bearing.

[0010] Furthermore, a sleeve is fixedly provided on the top of the base on one side of the frame, the top of the sleeve is sleeved and connected to a sleeve rod, the top of the sleeve rod is rotatably connected to a placement plate, and the sleeve rod is connected to the placement plate via a rotating shaft.

[0011] Furthermore, one side of the sleeve is threadedly connected to a tightening screw through a reserved threaded hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By setting up the protective cover, annular groove, annular baffle, airbag strip and air pump, the annular baffle can be pushed by inflation to generate deformation, and the workpiece to be processed can be placed on the placement plate to form an auxiliary clamping mechanism, which can replace manual hand-held processing. At the same time, it can avoid the safety hazards caused by the operator's misoperation and direct contact with the grinding wheel, making it more reasonable and safer to use.

[0014] By providing the annular groove and the reset spring, after the use of the grinding machine, the elastic driving force can be used to push the annular baffle back into the annular groove to complete the reset action. The structure is simple and compact, the cost is low, the operation is easy, and the practical value is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a desktop grinding machine.

[0016] Figure 2 The utility model is a schematic diagram of the sleeve and rod structure of a bench grinder.

[0017] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a protective cover of a desktop grinding machine.

[0018] In the figure: 1. base; 2. frame; 3. drive motor; 4. grinding wheel; 5. protective cover; 6. annular groove; 7. annular baffle; 8. airbag strip; 9. air pump; 10. return spring; 11. sleeve; 12. sleeve rod; 13. placement plate; 14. tightening screw. Implementation

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1 and 3 As shown, a desktop grinder includes a base 1 and a frame 2, the top of the base 1 is connected to the frame 2 by bolts, the top of the frame 2 is connected to the drive motor 3 by bolts, both sides of the drive motor 3 are connected with a protective cover 5 by bolts, an annular groove 6 is opened in the protective cover 5, an annular baffle 7 is sleeved and connected in the annular groove 6, an air bag strip 8 is arranged on one side of the annular baffle 7 in the annular groove 6, an air pump 9 is arranged on the back of the protective cover 5, and the air outlet end of the air pump 9 is connected to the air bag strip 8 through a pipeline.

[0021] The bottom of the protective cover 5 is provided with a chip discharge opening.

[0022] A return spring 10 is sleeved on the outer periphery of the annular baffle 7 in the annular groove 6 .

[0023] In this embodiment, Figure 3 As shown, the return spring 10 can be used to utilize the elastic driving force to drive the annular baffle 7 to return to the annular groove 6.

[0024] The grinding wheel 4 is installed in the protective cover 5 through a bearing, and the driving motor 3 is connected to the grinding wheel 4 through a driving shaft.

[0025] In this embodiment, Figure 1 As shown, the grinding wheel 4 rotates to facilitate grinding of the workpiece.

[0026] A sleeve 11 is fixedly provided on the top of the base 1 on one side of the frame 2 , the top of the sleeve 11 is sleeved with a sleeve rod 12 , and the top of the sleeve rod 12 is rotatably connected with a placement plate 13 .

[0027] In this embodiment, Figure 2 As shown, the sleeve 11 and the sleeve rod 12 facilitate the adjustment of the height and angle of the placement plate 13 .

[0028] One side of the sleeve 11 is threadedly connected to the tightening screw 14 through a reserved threaded hole.

[0029] In this embodiment, Figure 2 As shown, one side of the sleeve rod 12 is threadedly connected to a fastening screw corresponding to the placement plate 13, and the sleeve rod 12 can be conveniently limited and fixed by tightening the screw 14, and the placement plate 13 after the angle adjustment can be conveniently fixed by the fastening screw.

[0030] It should be noted that the utility model is a desktop grinding machine. When working, the operator first places the workpiece to be ground on the placement plate 13, and adjusts the sleeve rod 12 and the placement plate 13 in turn according to the actual grinding angle and position, and respectively screws the tightening screw 14 and the fastening screw to limit and fix the sleeve rod 12 and the placement plate 13, and then manually starts the air pump 9 to inflate the airbag strip 8. The deformation caused by inflation pushes the annular baffle plate 7 to push the protective cover 5 out of the annular groove 6 to the top of the workpiece, and the annular baffle plate 7 and the placement plate 13 form an auxiliary clamping mechanism. The drive motor 3 is manually started to drive the grinding wheel 4 to rotate to grind the workpiece, thereby replacing the manual hand-held grinding method. It not only greatly improves the safety of operation, but also improves the accuracy of grinding. It is more reasonable and efficient to use, and has high practical value.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bench grinder, comprising a base (1) and a frame (2), characterized in that: The top of the base (1) is connected to the frame (2) by bolts, the top of the frame (2) is connected to the drive motor (3) by bolts, both sides of the drive motor (3) are connected to a protective cover (5) by bolts, an annular groove (6) is provided in the protective cover (5), an annular baffle (7) is sleeved and connected in the annular groove (6), an air bag strip (8) is provided in the annular groove (6) on one side of the annular baffle (7), an air pump (9) is provided on the back of the protective cover (5), and an air outlet end of the air pump (9) is connected to the air bag strip (8) through a pipeline.

2. A bench grinder according to claim 1, characterized in that: A return spring (10) is sleeved on the outer periphery of the annular baffle (7) in the annular groove (6).

3. A bench grinder according to claim 1, characterized in that: A grinding wheel (4) is mounted in the protective cover (5) via a bearing, and the drive motor (3) is connected to the grinding wheel (4) via a drive shaft.

4. A bench grinder according to claim 1, characterized in that: A sleeve (11) is fixedly provided on the top of the base (1) and located on one side of the frame (2); the top of the sleeve (11) is sleeved with a sleeve rod (12); and the top of the sleeve rod (12) is rotatably connected with a placement plate (13).

5. A bench grinder according to claim 4, characterized in that: One side of the sleeve (11) is threadedly connected to a tightening screw rod (14) through a reserved threaded hole.

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