A welding face polishing tool

Abstract

The application provides a welding surface polishing tool, which comprises a cylindrical structure shell, the inside of the shell is provided with a driving motor, the output end of the driving motor is fixedly connected with a planetary gear reduction mechanism, the output end of the planetary gear reduction mechanism is fixedly connected with a mounting seat, the upper part of the mounting seat is fixedly connected with a cylindrical structure polishing roller, one side of the shell is provided with a connecting section, the side wall of the connecting section is vertically fixedly connected with a first holding rod, the side wall of the shell is fixedly connected with an L-shaped second holding rod, and the L-shaped center line of the second holding rod is horizontally arranged. The application can improve the safety in use by holding with both hands.

Description

Technical Field

[0001] This invention relates to the field of polishing tools, and more particularly to a polishing tool for welded surfaces. Background Technology

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. Modern welding utilizes a variety of energy sources, including gas flames, electric arcs, lasers, electron beams, friction, and ultrasound.

[0003] During the welding process of steel structures, the welding surfaces need to be ground to remove oxides and ensure the quality of the weld. The most common grinding tool is the angle grinder. However, the grinding discs are thin and easily damaged by excessive force. Although angle grinders can be held with both hands, most users still operate them with one hand, which introduces uncertainty into the grinding process. Summary of the Invention

[0004] To address the aforementioned problems, this invention discloses a welding surface grinding tool, comprising a cylindrical outer shell, a drive motor housed inside the shell, a planetary gear reduction mechanism fixedly connected to the output end of the drive motor, a mounting base fixedly connected to the output end of the planetary gear reduction mechanism, and a cylindrical grinding roller fixedly connected to the mounting base. When the drive motor operates, the planetary gear reduction mechanism drives the mounting base and grinding roller at the drive end to rotate, thereby grinding the welding surface of the welded part.

[0005] A connecting section is provided on one side of the outer casing. A first gripping rod is vertically fixed to the side wall of the connecting section, and an L-shaped second gripping rod is fixedly connected to the side wall of the outer casing. The center line of the L-shape of the second gripping rod is horizontally set. The left hand holds the first gripping rod, and the right hand holds the second gripping rod, enabling two-handed grinding.

[0006] Preferably, a first handle is sleeved on the first grip rod, and a second handle is sleeved on the second grip rod. Both the first and second handles are made of rubber to improve grip and anti-slip performance.

[0007] Preferably, a switch is provided on the second grip lever, and a cable is provided at the end of the second grip lever. When held with the right hand, the thumb can easily flip the switch, which facilitates the use of the tool. In addition, the coil is used to power the device.

[0008] Preferably, the planetary gear reduction mechanism is located inside the connecting section.

[0009] Preferably, the mounting base includes a baffle, a support rod is fixedly connected to the middle of the baffle, the grinding roller includes a connecting sleeve, and the connecting sleeve is sleeved on the support rod, with a grinding element fixedly connected to the connecting sleeve. Furthermore, the output end of the planetary gear reduction mechanism is fixedly connected to the middle of the baffle.

[0010] Preferably, one end of the support rod has a regular hexagonal clip, and the other end of the support rod is threaded with a fixing bolt. When fixing the grinding roller, it is sleeved on the support rod, and then a tool is used to clamp the regular hexagonal clip. The fixing bolt is rotated at the other end using a tool to clamp and fix the grinding roller. Note that the fixing bolt is pressed against the end of the connecting sleeve and does not contact the grinding workpiece.

[0011] Preferably, the inner wall of the connecting sleeve is provided with a groove, and the side wall of the support rod is fixedly connected with a protruding tooth, which cooperates with the groove. The groove and the protruding tooth ensure that the grinding roller and the mounting base will not rotate relative to each other.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. It is equipped with a grinding roller, whose cylindrical structure is more robust and safer than the grinding discs used on angle grinders.

[0014] 2. Equipped with a first handle and a second handle, the tool requires the user to hold it with both hands during use, ensuring that the operator can concentrate on grinding and improving the safety of the grinding operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the grinding roller of the present invention;

[0018] Figure 4 This is a perspective view of the mounting base of the present invention.

[0019] List of reference numerals in the attached diagram:

[0020] 1. Grinding roller; 2. First handle; 3. Mounting base; 4. Connecting section; 5. Housing; 6. Second grip lever; 7. Switch; 8. Second handle; 9. Cable; 10. First grip lever;

[0021] 11. Connecting sleeve; 12. Slot; 13. Grinding part; 31. Fixing bolt; 32. Support rod; 33. Raised tooth; 34. Regular hexagonal clip; 35. Baffle. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figures 1 to 4 As shown, a welding surface grinding tool includes a cylindrical shell 5, inside which a drive motor is installed. The output end of the drive motor is fixedly connected to a planetary gear reduction mechanism to reduce the rotational speed and increase the torque. The output end of the planetary gear reduction mechanism is fixedly connected to a mounting base 3, and a cylindrical grinding roller 1 is fixedly connected to the mounting base 3. When the drive motor works, the grinding roller 1 is rotated through the planetary gear reduction mechanism, so that grinding operations can be performed.

[0024] A connecting section 4 is provided on one side of the outer shell 5. The connecting section 4 is also a thin shell with a cylindrical structure. A first gripping rod 10 is vertically fixed to the side wall of the connecting section 4. An L-shaped second gripping rod 6 is fixedly connected to the side wall of the outer shell 5. The center line of the L-shape of the second gripping rod 6 is set horizontally. That is, when using it, the left hand holds the first gripping rod 10, while the right hand holds the second gripping rod 6 for two-hand operation. Depending on factors such as the grinding angle, the operator needs to use both hands to exert force to maintain the posture of the tool.

[0025] A first handle 2 is sleeved on the first grip rod 10, and a second handle 8 is sleeved on the second grip rod 6. Both the first handle 2 and the second handle 8 are made of rubber to improve the grip feel and also to prevent slipping.

[0026] A switch 7 is provided on the second grip lever 6. The switch 7 is boat-shaped. A cable 9 is provided at the end of the second grip lever 6. The cable 9 is used for powering the tool. In addition, an electrical housing is provided at the connection between the second grip lever 6 and the outer casing 5 for installing and placing relevant electronic components.

[0027] The planetary gear reduction mechanism is located inside the connecting section 4.

[0028] Mounting base 3 includes baffle 35, which is a circular plate. One side of the baffle 35 is fixedly connected to the output end of the planetary gear reduction gear. A support rod 32 is fixedly connected to the middle of the baffle 35. Grinding roller 1 includes connecting sleeve 11, which is sleeved on the support rod 32 and is mounted on mounting base 3 by means of sleeve connection. Grinding part 13 is fixedly connected to the connecting sleeve 11. Grinding part 13 is a cylindrical component formed by pressing abrasive.

[0029] One end of the support rod 32 has a regular hexagonal locking segment 34 on its side wall, which makes it easy to use tools to hold the regular hexagonal locking segment 34. The other end of the support rod 32 is threaded with a fixing bolt 31, which is used to clamp the grinding roller 1. When changing the fixing of the grinding roller 1, first put the grinding roller 1 on the support rod 32, then tighten the fixing bolt 31 by hand, and then use tools to hold the regular hexagonal locking segment 34 and the fixing bolt 31 respectively, and continue to rotate the fixing bolt 31 to clamp and fix the grinding roller 1.

[0030] The inner wall of the connecting sleeve 11 is provided with a groove 12, and the side wall of the support rod 32 is fixedly connected with a tooth 33, which cooperates with the groove 12. When the grinding roller 1 is assembled, the groove 12 and the tooth 33 cooperate together, that is, during the rotation, the grinding roller 1 and the mounting base 3 are prevented from sliding.

[0031] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A tool for grinding welded surfaces, characterized in that, The device includes a cylindrical shell (5), inside which a drive motor is installed. The output end of the drive motor is fixedly connected to a planetary gear reduction mechanism, and the output end of the planetary gear reduction mechanism is fixedly connected to a mounting base (3). A cylindrical grinding roller (1) is fixedly connected to the mounting base (3). A connecting section (4) is provided on one side of the outer shell (5). A first gripping rod (10) is vertically fixed to the side wall of the connecting section (4). An L-shaped second gripping rod (6) is fixed to the side wall of the outer shell (5). The center line of the L-shape of the second gripping rod (6) is set horizontally. The mounting base (3) includes a baffle (35), and a support rod (32) is fixedly connected to the middle of the baffle (35). The grinding roller (1) includes a connecting sleeve (11), and the connecting sleeve (11) is sleeved on the support rod (32). A grinding part (13) is fixedly connected to the connecting sleeve (11). A regular hexagonal clip (34) is provided on the side wall of one end of the support rod (32), and a fixing bolt (31) is threaded to the other end of the support rod (32).

2. The welding surface grinding tool according to claim 1, characterized in that: A first handle (2) is sleeved on the first grip (10), and a second handle (8) is sleeved on the second grip (6).

3. The welding surface grinding tool according to claim 1, characterized in that: A switch (7) is provided on the second grip (6), and a cable (9) is provided at the end of the second grip (6).

4. The welding surface grinding tool according to claim 1, characterized in that: The planetary gear reduction mechanism is located inside the connecting section (4).

5. A welding surface grinding tool according to claim 1, characterized in that: The inner wall of the connecting sleeve (11) is provided with a slot (12), and the side wall of the support rod (32) is fixedly connected with a tooth (33), and the tooth (33) and the slot (12) cooperate with each other.

Images