Pneumatic sharpening machine

Abstract

The utility model discloses a pneumatic sharpening machine, which belongs to the technical field of sharpening machines and comprises a pneumatic motor, a tool bit mounting seat is arranged at the end of the pneumatic motor, a sharpening tool box is arranged on the tool bit mounting seat, a mounting block is mounted on the tool bit mounting seat, a square sliding rod is fixedly connected to the top surface of the mounting block, and a handle is fixedly connected to the top surface of the square sliding rod. A top plate is fixedly connected to the top end of the square sliding rod, and a scrap suction mechanism is arranged on the top face of the top plate. The U-shaped frame and the lifting seat are mounted on the upper electrode stem to be sharpened through matching of the electric push rod and the arc-shaped clamping plate, and the pneumatic motor, the tool bit mounting seat and the sharpening tool box are limited through sliding between the lifting seat and the square sliding rod, so that the axial direction of the sharpening tool box and the axial direction of the upper electrode stem are concentrically arranged; and in addition, it can be effectively guaranteed that the tool bit mounting base and the sharpening tool box cannot deviate during sharpening, and the electrode sharpening quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and more specifically, to a pneumatic grinding machine. Background Technology

[0002] A pneumatic grinder is a tool driven by compressed air. An air compressor provides stable air pressure, which is converted into mechanical energy to drive the tool head to rotate, enabling grinding, polishing, and cutting processes on the workpiece surface. In particular, welding machine electrodes may deform and oxidize after a period of use, requiring a grinder for restoration.

[0003] A search revealed a utility model patent with publication number CN221454635U, which discloses a pneumatic silent handheld grinder. This grinder includes a pneumatic component, a silent motor, and a planetary reducer connected to its output. A gearbox is installed at the output of the planetary reducer, and a gear plate, which drives the planetary reducer, is installed inside the gearbox. The gear plate can hold a tool holder and rotate the tool holder and the blades inside. This patent offers advantages such as increased torque, improved grinding stability, and guaranteed grinding quality and precision. However, the patent also has the following shortcomings: although the grinder can be handheld for electrode grinding, handheld operation inevitably leads to the grinder not being concentrically aligned with the electrode rods. The tilted handheld operation affects the grinding quality, and copper shavings are generated during grinding, making collection difficult. Therefore, we propose a pneumatic grinder. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a pneumatic grinding machine.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A pneumatic grinding machine includes a pneumatic motor, a blade mounting base at the end of the pneumatic motor, a grinding blade box on the blade mounting base, a mounting block on the blade mounting base, a square slide rod fixedly connected to the top surface of the mounting block, a top plate fixedly connected to the top of the square slide rod, a chip suction mechanism on the top surface of the top plate, a lifting seat movably sleeved on the outer side of the square slide rod, a U-shaped frame fixedly connected to the end of the lifting seat, electric push rods fixedly mounted on both sides of the U-shaped frame, and the output ends of the two electric push rods extending to the inner side of the U-shaped frame and fixedly connected to an arc-shaped clamping plate.

[0007] As a preferred embodiment of this utility model, the chip collection mechanism includes a chip collection box fixedly connected to the top surface of the top plate, a chip collection telescopic tube fixedly sleeved at one end of the chip collection box, a chip collection cover fixedly connected to the end of the chip collection telescopic tube, an air suction pump fixedly installed at the other end of the chip collection box, the input end of the air suction pump extending into the inner cavity of the chip collection box, a filter screen fixedly sleeved in the inner cavity of the chip collection box, and a sealing plate hinged to the outer side of the chip collection box.

[0008] As a preferred embodiment of this utility model, the top surface of the cutter head mounting base has two screw holes, the mounting block has two mounting holes, the inner sides of the two mounting holes are respectively fitted with bolts, and the bottom ends of the two bolts are respectively threaded into the inner cavity of the screw holes.

[0009] As a preferred embodiment of this utility model, the tail end of the pneumatic motor is provided with a quick connector, and the bottom of the pneumatic motor is provided with a control lever.

[0010] As a preferred embodiment of this utility model, a control panel is fixedly installed on the rear side of the chip collection box, and the control panel is electrically connected to the air pump and the electric push rod respectively.

[0011] As a preferred embodiment of this utility model, a lithium battery is provided on the top surface of the chip collection box, and the lithium battery is electrically connected to the air pump, the electric push rod and the control panel respectively.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, the U-shaped frame and the lifting seat are installed on the upper electrode rod to be refurbished by the cooperation of the electric push rod and the arc-shaped clamp. The sliding between the lifting seat and the square slide rod limits the pneumatic motor, the cutter head mounting seat and the refurbishing tool box, so that the axial direction of the refurbishing tool box and the axial direction of the upper electrode rod are arranged concentrically. During refurbishment, it can effectively ensure that the cutter head mounting seat and the refurbishing tool box will not shift, thus ensuring the quality of refurbishing the electrode.

[0014] (2) In this utility model, during grinding, the suction pump generates suction force through the suction tube and the suction hood. The suction force of the suction hood is used to suck the waste chips generated during grinding from the suction hood and the suction tube into the inner cavity of the chip collection box. The filter screen is used to trap the waste chips that have entered the chip collection box, thereby realizing the function of collecting the waste chips generated during grinding, avoiding the situation of waste chips splashing, and improving the practicality of the pneumatic grinding machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the U-shaped frame of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the chip collection box of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Pneumatic motor; 2. Cutter head mounting base; 3. Sharpening tool box; 4. Mounting block; 5. Square slide bar; 6. Top plate; 7. Chip suction mechanism; 8. Lifting seat; 9. U-shaped frame; 10. Electric push rod; 11. Arc-shaped clamp; 12. Chip collection box; 13. Chip suction telescopic tube; 14. Chip suction hood; 15. Air suction pump; 16. Filter screen; 17. Sealing plate; 18. Control panel; 19. Lithium battery; 20. Quick connector; 21. Control lever; 22. Screw hole; 23. Mounting hole; 24. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] Please see Figure 1-4 A pneumatic grinding machine includes a pneumatic motor 1, a blade mounting seat 2 at the end of the pneumatic motor 1, a grinding blade box 3 on the blade mounting seat 2, a mounting block 4 on the blade mounting seat 2, a square slide rod 5 fixedly connected to the top surface of the mounting block 4, a top plate 6 fixedly connected to the top of the square slide rod 5, a chip suction mechanism 7 on the top surface of the top plate 6, a lifting seat 8 movably sleeved on the outer side of the square slide rod 5, a U-shaped frame 9 fixedly connected to the end of the lifting seat 8, electric push rods 10 fixedly installed on both sides of the U-shaped frame 9, and the output ends of the two electric push rods 10 extending to the inner side of the U-shaped frame 9 and fixedly connected to an arc-shaped clamping plate 11.

[0026] In this embodiment, the arc-shaped clamping plate 11 and the grinding tool box 3 are arranged concentrically, ensuring that after the arc-shaped clamping plate 11 is fitted onto the electrode rod of the spot welding machine, the bottom end of its electrode can be inserted into the grinding tool box 3 for grinding.

[0027] For details, please refer to Figure 1 , Figure 2 and Figure 4 The chip collection mechanism 7 includes a chip collection box 12 fixedly connected to the top surface of the top plate 6. One end of the chip collection box 12 is fixedly sleeved with a chip collection telescopic tube 13, and the end of the chip collection telescopic tube 13 is fixedly connected with a chip collection cover 14. The other end of the chip collection box 12 is fixedly installed with an air suction pump 15. The input end of the air suction pump 15 extends into the inner cavity of the chip collection box 12. A filter screen 16 is fixedly sleeved in the inner cavity of the chip collection box 12, and a sealing plate 17 is hinged to the outer side of the chip collection box 12.

[0028] In this embodiment, the waste debris collected in the inner cavity of the chip collection box 12 is cleaned by opening the sealing plate 17.

[0029] For details, please refer to Figure 1 and Figure 2 The top surface of the cutter head mounting base 2 has two screw holes 22, and the mounting block 4 has two mounting holes 23. Bolts 24 are respectively fitted inside the two mounting holes 23, and the bottom ends of the two bolts 24 are respectively threaded into the inner cavity of the screw holes 22.

[0030] In this embodiment, the mounting block 4 is installed on the cutter head mounting seat 2 by the cooperation of the screw hole 22, the mounting hole 23 and the bolt 24.

[0031] For details, please refer to Figure 1 and Figure 2 The pneumatic motor 1 has a quick connector 20 at its tail end and a control lever 21 at its bottom.

[0032] In this embodiment, the pneumatic motor 1 is connected to the air supply pipe via the quick connector 20, and the pneumatic motor 1 is controlled by the control lever 21.

[0033] For details, please refer to Figures 2 to 4 A control panel 18 is fixedly installed on the rear side of the chip collection box 12. The control panel 18 is electrically connected to the air pump 15 and the electric push rod 10.

[0034] In this embodiment, the air pump 15 and the electric push rod 10 are controlled by the control panel 18.

[0035] For details, please refer to Figures 2 to 4 A lithium battery 19 is provided on the top surface of the chip collection box 12. The lithium battery 19 is electrically connected to the air pump 15, the electric push rod 10 and the control panel 18 respectively.

[0036] In this embodiment, a lithium battery 19 is used to power the suction pump 15, the electric push rod 10, and the control panel 18.

[0037] Working principle: In use, firstly, the mounting block 4, square slide rod 5, and top plate 6 are installed on the cutter head mounting seat 2 through the cooperation of screw hole 22, mounting hole 23, and bolt 24. Then, the two arc-shaped clamping plates 11 are placed on the side of the upper electrode rod to be ground. The electric push rod 10 is started using the control panel 18, which drives the two arc-shaped clamping plates 11 closer together, clamping them onto the side of the upper electrode rod so that the U-shaped frame 9 can be installed on the side of the upper electrode rod. Then, the pneumatic motor 1 is held and slid up and down, along with the cutter head mounting seat 2 and the grinding tool box 3. Simultaneously, the square slide rod 5 slides on the lifting seat 8, placing the bottom end of the upper electrode rod into the grinding tool box 3. At the same time, the cylinder on the spot welding machine moves the upper electrode rod downwards, synchronously driving the U-shaped frame 9, square slide rod 5, cutter head mounting seat 2, and grinding tool box 3 downwards. The lower electrode rod is moved so that its tip is inserted into the grinding tool box 3. Then, the control lever 21 is pressed to supply air to the pneumatic motor 1 through the air pipe connected to the quick connector 20. The pneumatic motor 1 is started by the air, which drives the grinding tool box 3 to rotate, thereby simultaneously grinding the bottom end of the upper electrode rod and the top end of the lower electrode rod. Finally, during grinding, the suction pump 15 is started to draw air into the inner cavity of the chip collection box 12. The negative pressure in the inner cavity of the chip collection box 12 causes the chip suction telescopic tube 13 and the chip suction hood 14 to generate suction. The suction of the chip suction hood 14 is used to draw air from the grinding area of ​​the grinding tool box 3, thereby sucking the waste chips generated during grinding from the chip suction hood 14 and the chip suction telescopic tube 13 into the inner cavity of the chip collection box 12. The filter screen 16 is used to intercept the waste chips that have entered the chip collection box 12, thus collecting the waste chips generated during grinding.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A pneumatic sharpening machine comprising a pneumatic motor (1), characterized in that: The end of the pneumatic motor (1) is provided with a tool bit mounting seat (2), a dressing tool box (3) is arranged on the tool bit mounting seat (2), an installation block (4) is installed on the tool bit mounting seat (2), the top surface of the installation block (4) is fixedly connected with a square slide rod (5), the top end of the square slide rod (5) is fixedly connected with a top plate (6), the top surface of the top plate (6) is provided with a chip suction mechanism (7), the outer side of the square slide rod (5) is movably sleeved with a lifting seat (8), the end of the lifting seat (8) is fixedly connected with a U-shaped frame (9), the two sides of the U-shaped frame (9) are respectively fixedly installed with an electric push rod (10), and the output ends of the two electric push rods (10) are fixedly connected with an arc-shaped clamping plate (11).

2. An air abrasive machine according to claim 1, wherein: The chip suction mechanism (7) comprises a chip collecting box (12) fixedly connected to the top surface of the top plate (6), one end of the chip collecting box (12) is fixedly sleeved with a chip suction telescopic pipe (13), the end of the chip suction telescopic pipe (13) is fixedly connected with a chip suction cover (14), the other end of the chip collecting box (12) is fixedly installed with a suction pump (15), the input end of the suction pump (15) extends to the inner cavity of the chip collecting box (12), the inner cavity of the chip collecting box (12) is fixedly sleeved with a filter screen (16), and the outer side of the chip collecting box (12) is hingedly connected with a sealing plate (17).

3. An air abrasive machine according to claim 1 wherein: The top surface of the tool bit mounting seat (2) is provided with two screw holes (22), the installation block (4) is provided with two installation holes (23), the inner sides of the two installation holes (23) are respectively sleeved with bolts (24), and the bottom ends of the two bolts (24) are respectively screwed into the inner cavities of the screw holes (22).

4. An air abrasive machine according to claim 1 wherein: The tail end of the pneumatic motor (1) is provided with a quick connector (20), and the bottom of the pneumatic motor (1) is provided with a control lever (21).

5. An air abrasive machine according to claim 2, wherein: The rear side of the chip collecting box (12) is fixedly installed with a control panel (18), and the control panel (18) is electrically connected with the suction pump (15) and the electric push rod (10).

6. An air abrasive machine according to claim 5, wherein: The top surface of the chip collecting box (12) is provided with a lithium battery (19), and the lithium battery (19) is electrically connected with the suction pump (15), the electric push rod (10) and the control panel (18).

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