Portable grinding and polishing tool

Abstract

The utility model relates to the technical field of grinding and polishing, and discloses a portable grinding and polishing tool which comprises an angle grinder, a handheld unit is installed on the outer wall of the angle grinder, a fixing frame is installed below the angle grinder, and a buckle is fixedly connected to the upper surface of the fixing frame. The fixing frame is installed below the angle grinder and supports the guide assemblies, and the distance between the clamping sleeves in the two guide assemblies is adjustable, so that the bearings in the clamping sleeves abut against the outer walls of the two sides of the square pipeline, and the grinding head of the angle grinder makes contact with the grinding face of the pipeline; at the moment, the angle grinder is pushed to move so that the grinding head of the angle grinder can stably grind the pipeline, the steel plate can also be directly placed on the pipeline, the guide assembly is used for positioning the pipeline so that the angle grinder can grind the steel plate, the grinding efficiency is high, the grinding angle can be conveniently controlled, the grinding deviation is reduced, and the grinding attractiveness is improved; and the whole size is small, carrying is convenient, and the polishing requirements of different sizes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, in particular to a portable grinding and polishing tool. Background Art

[0002] When polishing a metal surface, a polishing machine, an angle grinder and other equipment are generally used. This type of equipment is mostly driven by an electric motor, a pneumatic motor, etc. to drive the grinding head to rotate, so that the rotating grinding head contacts the metal surface, thereby achieving polishing of the metal surface.

[0003] Before the existing garden steel structure is installed and welded, it needs to go through a rust removal process. During the construction, the rust removal work requires that the steel pipes, steel plates, etc. are placed on the ground, and the workers use hand-held angle grinders to grind the steel pipes, steel plates, etc. However, this grinding and rust removal method is inefficient, and the workers completely control the grinding angle of the angle grinder manually, which is laborious and easy to deviate. At the same time, the process will deviate due to the segmented grinding and rust removal, affecting the aesthetics.

[0004] A portable grinding and polishing tool is proposed for this purpose. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a portable grinding and polishing tool, which improves the convenience of using the grinding tool, reduces the workload, and improves the grinding efficiency and grinding quality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable grinding and polishing tool, including an angle grinder, a handheld unit is installed on the outer wall of the angle grinder, a fixing frame is installed below the angle grinder, a buckle is fixedly connected to the upper surface of the fixing frame, through holes are provided at both ends of the buckle, the buckle clamps and fixes the angle grinder by passing a steel belt through the through holes, guide assemblies are installed at both ends of the fixing frame, a sliding unit is installed between the inner walls at both ends of the fixing frame, the sliding unit is located above the guide assembly, the guide assembly includes a threaded rod, one end of the threaded rod passes through the side wall of the fixing frame, the threaded rod is slidably connected to the fixing frame, one end of the threaded rod located in the fixing frame is fixedly connected to a ferrule, a short rod is fixedly connected in the ferrule, a bearing is installed on the outer wall of the short rod, and two nuts are threadedly connected to the outer wall of the threaded rod, and the two nuts are respectively located on both sides of the end of the fixing frame.

[0007] Preferably, the guide assembly further comprises a limit rod, the limit rod is fixedly connected to one end of the ferrule, the other end of the limit rod penetrates the adjacent side wall of the fixing frame, and the limit rod is slidably connected to the fixing frame.

[0008] Preferably, the number of short rods fixedly connected in the ferrule is not less than two, and the number of bearings installed on the outer wall of the short rod is not less than two.

[0009] Preferably, the sliding unit comprises sliding openings penetrating through the side walls at both ends of the fixing frame, a connecting plate is installed in the sliding opening, and a plurality of rotating rods are rotatably connected between the two connecting plates.

[0010] Preferably, the sliding unit also includes a stabilizing rod, which is fixedly connected in the sliding mouth, and the connecting plate is slidably connected to the outer wall of the stabilizing rod and the inner wall of the sliding mouth, and an adjusting bolt is rotatably connected in one of the sliding mouths, the adjusting bolt passes through the connecting plate in the sliding mouth, the adjusting bolt is threadedly connected to the connecting plate, and the upper end of the adjusting bolt is passed through to the outside of the fixed frame.

[0011] Preferably, the handheld unit comprises a connecting frame, which is sleeved on the outer wall of the angle grinder, with both ends of the connecting frame rotatably connected to the angle grinder, and a handheld rod is fixedly connected to the outer wall of one end of the connecting frame.

[0012] Preferably, locking bolts are provided at both ends of the connecting frame, one end of the locking bolts is threadedly connected to the angle grinder, and the connecting frame is rotatably connected to the angle grinder via the locking bolts.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model installs a fixing frame under the angle grinder, and the fixing frame supports the guide assembly. The spacing between the ferrules in the two guide assemblies is adjustable, so that the bearings in the ferrules are against the outer walls on both sides of the square pipe, and the grinding head of the angle grinder is in contact with the grinding surface of the pipe. At this time, the grinding head of the angle grinder can be pushed to move to grind the pipe stably, and the steel plate can also be directly placed on the pipe and the guide assembly is used to position the pipe so that the angle grinder can grind the steel plate. The grinding efficiency is high, the grinding angle is easy to control, the grinding deviation is reduced, the grinding aesthetics is improved, and the overall size is small, easy to carry, and suitable for grinding needs of different sizes.

[0015] 2. The utility model installs a sliding unit inside a fixed frame, and a rotating rod in the sliding unit can contact the grinding surface of a square pipe or a steel plate. When the grinder moves for grinding, the rotating rod slides with the square pipe or the steel plate, thereby reducing friction and facilitating movement for grinding.

[0016] 3. The distance between the rotating rod and the top wall of the fixed frame in the utility model can be fine-tuned to adapt to the grinding sheets of the grinder with different thicknesses. When the grinder grinds the square pipe or steel plate, the rotating rod can always contact and slide with the grinding surface of the square pipe or steel plate, which is convenient to use.

[0017] 4. The utility model installs a rotatable connecting frame on the outer wall of the angle grinder, and fixes a hand-held rod on the other end of the connecting frame, so that workers can hold the hand-held rod and cooperate with the connecting frame and the guide assembly to push the angle grinder to move and grind square pipes or steel plates. This grinding method can avoid manual bending operation and reduce labor. The hand-held unit can also be used for secondary grinding and rust removal at high places of completed steel structure pieces (for example: corridors, landscape walls, iron gates, etc.).

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a detailed structural diagram of the guide assembly of the utility model;

[0021] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 It is a detailed structural diagram of the handheld unit of the utility model.

[0023] In the figure: 1. Angle grinder; 2. Fixed frame; 3. Guide assembly; 31. Threaded rod; 32. Ferrule; 33. Short rod; 34. Bearing; 35. Limit rod; 36. Nut; 4. Buckle; 5. Perforation; 6. Hand-held unit; 61. Connecting frame; 62. Hand-held rod; 7. Sliding unit; 71. Slide; 72. Connecting plate; 73. Rotating rod; 74. Stabilizing rod; 75. Adjusting bolt; 8. Locking bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The portable grinding and polishing tool of this embodiment includes an angle grinder 1, a handheld unit 6 is installed on the outer wall of the angle grinder 1, a fixing frame 2 is installed below the angle grinder 1, a buckle 4 is fixedly connected to the upper surface of the fixing frame 2, through holes 5 are provided at both ends of the buckle 4, and the buckle 4 clamps and fixes the angle grinder 1 by passing a steel belt through the through holes 5, and a guide assembly 3 is installed at both ends of the fixing frame 2, a sliding unit 7 is installed between the inner walls at both ends of the fixing frame 2, and the sliding unit 7 is located above the guide assembly 3, and the guide assembly 3 includes a threaded rod 31, one end of the threaded rod 31 passes through the side wall of the fixing frame 2, and the threaded rod 31 is slidably connected to the fixing frame 2, and one end of the threaded rod 31 located in the fixing frame 2 is fixedly connected to a ferrule 32, and a short rod 33 is fixedly connected in the ferrule 32, and a bearing 34 is installed on the outer wall of the short rod 33, and the outer wall of the threaded rod 31 is threadedly connected to two nuts 36, and the two nuts 36 are respectively located on both sides of the end of the fixing frame 2.

[0026] like Figure 1 , 2 As shown, the grinding and polishing tool structure in the utility model is similar to the existing grinding and polishing tool structure. The main improvement of the utility model is to improve the convenience of using the grinding tool, reduce the labor, and improve the grinding efficiency and grinding quality. When the utility model needs to grind a square pipe or a steel plate, if the square pipe is to be grinded, the fixing frame 2 is sleeved outside the square pipe. If the steel plate is to be grinded, the steel plate is placed on the upper surface of the square pipe, and the fixing frame 2 is sleeved outside the square pipe. Then the angle grinder 1 is placed in the buckle 4, and a steel belt (the steel belt is not shown in the figure) passes through two through holes 5 on the buckle 4. The steel belt is used to cooperate with the buckle 4 to fix the angle grinder 1, and the grinding head of the angle grinder 1 is brought into contact with the grinding surface of the square pipe or steel plate. At this time, the nuts 36 on the outer walls of the two threaded rods 31 are loosened to move the threaded rods 31, and the threaded rods 31 drive the clamping sleeve 32 to move. The bearing 34 in the sleeve 32 contacts the outer wall of the square pipe, and the bearing 34 is supported by a short rod 33 fixed in the sleeve 32. After the position adjustment of the bearing 34 is completed, the two nuts 36 on the outer wall of the threaded rod 31 are screwed until they are respectively against the two sides of the fixing frame 2, thereby restricting the threaded rod 31. At this time, the angle grinder 1 can be started and pushed to move, so that the bearing 34 slides with the two sides of the square pipe, thereby positioning the angle grinder 1, so that the angle grinder 1 can stably grind the square pipe or steel plate. For square pipes and steel plates, each side can be polished and then the other side can be replaced for polishing. The grinding efficiency is higher and the grinding effect is better. It can adapt to the grinding of square pipes and steel plates of different widths, reduce grinding deviation, improve the aesthetics of grinding, and the overall size is small and easy to carry. If you want to grind round steel, you can directly replace the grinding head of the angle grinder. The principle is the same as that of grinding square steel.

[0027] Among them, the angle grinder 1 mentioned above can be purchased on the market. It is a mature technology and has been fully disclosed, so it is not repeated in the specification. The angle grinder 1 is equipped with a power connection line, and it is electrically connected to the external 220V phase voltage through the power line.

[0028] like Figure 2 As shown, the guide assembly 3 also includes a limit rod 35, which is fixedly connected to one end of the sleeve 32, and the other end of the limit rod 35 passes through the adjacent side wall of the fixed frame 2, and the limit rod 35 is slidably connected to the fixed frame 2; the limit rod 35 cooperates with the threaded rod 31 to limit the sleeve 32 so that the sleeve 32 does not rotate, thereby maintaining the sliding of the bearing 34 and the square pipe, and when the threaded rod 31 is adjusted, the limit rod 35 slides with the fixed frame 2.

[0029] like Figure 2 As shown, the number of short rods 33 fixedly connected in the sleeve 32 is not less than two, and the number of bearings 34 installed on the outer wall of the short rod 33 is not less than two; the multiple bearings 34 cooperate with each other and slide with the square pipe to improve stability and ensure the smoothness of the angle grinder 1 when moving.

[0030] like Figure 2 , 3 As shown, the sliding unit 7 includes a sliding opening 71 which passes through the side walls at both ends of the fixed frame 2, and a connecting plate 72 is installed in the sliding opening 71. A plurality of rotating rods 73 are rotatably connected between the two connecting plates 72; the rotating rods 73 are in contact with the grinding surface of the square pipe or steel plate, and the rotating rods 73 are supported by the two connecting plates 72. When the angle grinder 1 moves to slide the square pipe or steel plate, the plurality of rotating rods 73 slide with the grinding surface of the square pipe or steel plate, thereby reducing friction, making it convenient to move the angle grinder 1 and easy to use.

[0031] like Figure 2 , 3 As shown, the sliding unit 7 also includes a stabilizing rod 74, which is fixedly connected to the sliding opening 71, and a connecting plate 72 is slidably connected to the outer wall of the stabilizing rod 74 and the inner wall of the sliding opening 71. An adjusting bolt 75 is rotatably connected in one of the sliding openings 71, and the adjusting bolt 75 passes through the connecting plate 72 in the sliding opening 71. The adjusting bolt 75 is threadedly connected to the connecting plate 72, and the upper end of the adjusting bolt 75 is passed through the outside of the fixing frame 2; when grinding square pipes or steel plates of different widths, the angle grinder 1 can be replaced with different sizes. In order to ensure that the grinding head of the angle grinder 1 is in parallel contact with the grinding surface of the square pipe or steel plate, the connecting plate 72 can be raised or lowered in the sliding mouth 71 by rotating the adjusting bolt 75. The two connecting plates 72 slide with the outer wall of the stabilizing rod 74. The stabilizing rod 74 restricts the connecting plate 72 so that the connecting plate 72 adjusts the distance between the rotating rod 73 and the internal top wall of the fixing frame 2, so that the grinding head of the angle grinder 1 is kept parallel to the grinding surface of the square pipe or steel plate for grinding, thereby improving adaptability.

[0032] like Figure 1 , 4 As shown, the handheld unit 6 includes a connecting frame 61, which is sleeved on the outer wall of the angle grinder 1. Both ends of the connecting frame 61 are rotatably connected to the angle grinder 1, and a handheld rod 62 is fixedly connected to the outer wall of one end of the connecting frame 61. When grinding, the worker can hold the handheld rod 62 and cooperate with the connecting frame 61 to push the angle grinder 1. The guide component 3 positions the angle grinder 1, and the angle grinder 1 will not shift. This grinding method can avoid manual bending operation and reduce labor. The handheld unit 6 can also be used for secondary grinding and rust removal at high places of completed steel structure pieces (for example: corridors, landscape walls, wrought iron doors, etc.) to improve practicality.

[0033] like Figure 4 As shown, locking bolts 8 are passed through both ends of the connecting frame 61, one end of the locking bolt 8 is threadedly connected to the angle grinder 1, and the connecting frame 61 is rotatably connected to the angle grinder 1 through the locking bolt 8; the connecting frame 61 is connected to the angle grinder 1 by means of the locking bolt 8, so that the connecting frame 61 can be disassembled and assembled, which is convenient for using the angle grinder 1 alone or in combination. At the same time, after the locking bolt 8 is tightened, the connecting frame 61 can be restricted so that it will not rotate, so as to be used in different usage scenarios.

[0034] Implementation steps in this embodiment: when it is necessary to grind a square pipe or a steel plate, if the square pipe is to be grinded, the fixing frame 2 is sleeved outside the square pipe; if the steel plate is to be grinded, the steel plate is placed on the upper surface of the square pipe, and the fixing frame 2 is sleeved outside the square pipe, and then the angle grinder 1 is placed in the buckle 4, and the steel belt is passed through the two through holes 5 on the buckle 4, and the angle grinder 1 is fixed by using the steel belt and the buckle 4. At this time, according to the thickness of the grinding head of the angle grinder 1, the adjusting bolt 75 is rotated to make the connecting plate 72 rise or fall in the sliding mouth 71, and the two connecting plates 72 both slide with the outer wall of the stabilizing rod 74, and the stabilizing rod 74 restricts the connecting plate 72 so that the connecting plate 72 adjusts the distance between the rotating rod 73 and the inner top wall of the fixing frame 2, so that the grinding head and the rotating rod 73 of the angle grinder 1 are in contact with the square pipe or steel plate, and the grinding surface of the grinding head of the angle grinder 1 remains parallel. The cam 32 is then tightened to allow the two nuts 36 on the outer walls of the two threaded rods 31 to move, and the threaded rod 31 drives the sleeve 32 to move, and the sleeve 32 drives the limiting rod 35 to slide with the fixing frame 2, and the limiting rod 35 cooperates with the threaded rod 31 to limit the sleeve 32 so that it does not rotate, so that the bearing 34 in the sleeve 32 contacts the outer wall of the square pipe, and the bearing 34 is supported by the short rod 33 fixed in the sleeve 32. After the position adjustment of the bearing 34 is completed, the two nuts 36 on the outer walls of the threaded rod 31 are tightened until they are respectively against the two sides of the fixing frame 2. At this time, the angle grinder 1 can be started to work, and the worker can hold the hand-held rod 62 and push the angle grinder 1 to move through the connecting frame 61, so that the bearing 34 slides with the two sides of the square pipe, and the rotating rod 73 slides with the grinding surface of the square pipe or steel plate, thereby positioning the angle grinder 1, so that the angle grinder 1 can stably grind the square pipe or steel plate.

[0035] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A portable grinding and polishing tool, comprising an angle grinder (1), characterized in that: A hand-held unit (6) is installed on the outer wall of the angle grinder (1), a fixed frame (2) is installed below the angle grinder (1), a buckle (4) is fixedly connected to the upper surface of the fixed frame (2), both ends of the buckle (4) are provided with through holes (5), the buckle (4) clamps and fixes the angle grinder (1) by passing a steel belt through the through holes (5), both ends of the fixed frame (2) are installed with guide assemblies (3), a sliding unit (7) is installed between the inner walls of the two ends of the fixed frame (2), the sliding unit (7) is located above the guide assembly (3), and the guide assembly (3) is fixed to the fixed frame (2). The assembly (3) comprises a threaded rod (31), one end of the threaded rod (31) passes through the side wall of the fixing frame (2), the threaded rod (31) is slidably connected to the fixing frame (2), one end of the threaded rod (31) located in the fixing frame (2) is fixedly connected to a clamping sleeve (32), a short rod (33) is fixedly connected in the clamping sleeve (32), a bearing (34) is installed on the outer wall of the short rod (33), and the outer wall of the threaded rod (31) is threadedly connected to two nuts (36), and the two nuts (36) are respectively located on both sides of the end of the fixing frame (2).

2. A portable grinding and polishing tool according to claim 1, characterized in that: The guide assembly (3) also includes a limiting rod (35), the limiting rod (35) is fixedly connected to one end of the clamping sleeve (32), the other end of the limiting rod (35) penetrates the adjacent side wall of the fixing frame (2), and the limiting rod (35) is slidably connected to the fixing frame (2).

3. A portable grinding and polishing tool according to claim 1, characterized in that: The number of short rods (33) fixedly connected in the ferrule (32) is not less than two, and the number of bearings (34) installed on the outer wall of the short rod (33) is not less than two.

4. A portable grinding and polishing tool according to claim 1, characterized in that: The sliding unit (7) comprises a sliding opening (71) penetrating through the side walls at both ends of the fixing frame (2), a connecting plate (72) is installed in the sliding opening (71), and a plurality of rotating rods (73) are rotatably connected between the two connecting plates (72).

5. A portable grinding and polishing tool according to claim 4, characterized in that: The sliding unit (7) further comprises a stabilizing rod (74), the stabilizing rod (74) being fixedly connected in the sliding opening (71), the connecting plate (72) being slidably connected to the outer wall of the stabilizing rod (74) and the inner wall of the sliding opening (71), an adjusting bolt (75) being rotatably connected in one of the sliding openings (71), the adjusting bolt (75) passing through the connecting plate (72) in the sliding opening (71), the adjusting bolt (75) being threadedly connected to the connecting plate (72), and the upper end of the adjusting bolt (75) being passed through to the outside of the fixing frame (2).

6. A portable grinding and polishing tool according to claim 1, characterized in that: The handheld unit (6) comprises a connecting frame (61), the connecting frame (61) is sleeved on the outer wall of the angle grinder (1), both ends of the connecting frame (61) are rotatably connected to the angle grinder (1), and a handheld rod (62) is fixedly connected to the outer wall of one end of the connecting frame (61).

7. A portable grinding and polishing tool according to claim 6, characterized in that: Locking bolts (8) are inserted through both ends of the connecting frame (61), one end of the locking bolt (8) is threadedly connected to the angle grinder (1), and the connecting frame (61) is rotatably connected to the angle grinder (1) via the locking bolt (8).

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