Angle grinder with good machining stability

Abstract

The invention relates to the field of grinding facilities, in particular to an angle grinder with good machining stability, which comprises a machine body and an auxiliary grab handle mounted at the end of the machine body, locking pieces are mounted on the outer surface of the machine body and the outer surface of the auxiliary grab handle, an adjusting piece is connected to the end of each locking piece, and a guide sleeve is mounted at the lower end of each adjusting piece. A square guide frame is slidably installed in the guide sleeve in a penetrating mode, frame bases are fixedly installed at the two ends of the square guide frame, a foot board is arranged below the frame bases, a vertical frame is fixedly installed on the edge of the upper end of the foot board, and a threaded sleeve is rotatably installed at the upper end of the vertical frame in a penetrating mode. According to the shaft polishing device, the comfort degree during polishing is improved, the stability during polishing is guaranteed, meanwhile, use is convenient, the shaft polishing device can adapt to shaft workpieces with different diameters and adapt to polishing at different polishing angles for polishing, and the use requirement is effectively met.

Description

Technical Field

[0001] The invention relates to the field of grinding facilities, and in particular to an angle grinder with good processing stability. Background Art

[0002] Angle grinder is a special equipment used for grinding workpieces. It can also be called angle grinder or disc grinder. Angle grinder is mainly used to grind workpieces of various materials, such as concrete, stone, brick and various metals.

[0003] When grinding some shaft workpieces, the shaft workpiece is often fixed on a rotating device first, so that the rotating device drives the shaft workpiece to rotate, and then the outer surface of the shaft workpiece is grinded by an angle grinder to remove surface burrs, etc. In the process of grinding with an angle grinder, most workers hold the angle grinder with force to grind, and long-term hand force will cause hand soreness, making the grinding uncomfortable, and the angle grinder is prone to shaking during hand-held grinding, resulting in unstable grinding. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an angle grinder with good processing stability.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: an angle grinder with good processing stability, comprising a machine body and an auxiliary handle installed at the end of the machine body, a locking piece is installed on the outer surface of the machine body and the outer surface of the auxiliary handle, an adjusting piece is connected to the end of the locking piece, a guide sleeve is installed at the lower end of the adjusting piece, a square guide frame is slidably installed through the inside of the guide sleeve, a frame seat is fixedly installed at both ends of the square guide frame, a step is provided below the frame seat, a vertical frame is fixedly installed at the upper edge of the step, a threaded sleeve is rotatably installed through the upper end of the vertical frame, a threaded rod is screwed through the inside of the threaded sleeve, and the upper end of the threaded rod is fixed to the frame seat.

[0006] Preferably, the threaded rod extends into the interior of the stand, a rod seat is fixedly mounted on the lower end of the threaded rod, the rod seat fits inside the stand, guide ears extend from both sides of the rod seat, sliding grooves are opened on both sides of the stand, and the guide ears fit inside the sliding grooves.

[0007] Preferably, the locking member includes a lower fixed machine base fitly installed on the lower part of the outer surface of the machine body, an upper fixed machine base fitly installed on the upper part of the outer surface of the machine body, the upper fixed machine base fits on the upper end of the lower fixed machine base, a lower fixed handle base fits on the lower part of the outer surface of the auxiliary handle, an upper fixed handle base fits on the upper part of the outer surface of the auxiliary handle, and the upper fixed handle base fits on the upper end of the lower fixed handle base.

[0008] Preferably, a lock frame is fixedly installed between the upper end of the upper fixed machine base and the upper end of the upper fixed handle base, a lock ear extends from the front end of the lock frame, a fixing frame is fixedly installed between the side surface of the lower fixed handle base and the side surface of the lower fixed machine base, the upper end of the fixing frame slides through the interior of the lock ear, and two plug ears extend symmetrically from the upper end of the lower fixed machine base, and the two plug ears respectively penetrate the two sides of the upper fixed machine base.

[0009] Preferably, a seat frame is fixedly installed at the upper edge of the front end of the fixing frame, a guide pin seat is fixedly installed at the end of the seat frame, a locking pin is slidably installed inside the guide pin seat, the locking pin sequentially penetrates the outer surface of the lock ear and the outer surface of the fixing frame, the locking pin slides with the lock ear and the fixing frame, slots are opened on both sides of the upper fixed machine seat, and the plug ears fit inside the slots.

[0010] Preferably, a top ring is coaxially embedded on the outer surface of the locking pin, and the top ring is fitted onto the locking ear. A fixing pin spring is wound around the outer side of the locking pin, and one end of the fixing pin spring is fixed to the guide pin seat, and the other end of the fixing pin spring is fixed to the top ring.

[0011] Preferably, the adjusting member includes an adjusting column fixedly mounted on the front end of the fixing frame, a bearing ring sleeve is coaxially arranged on the outer side of the adjusting column, a plurality of limiting blocks are extended in a circular array at the edge of the inner surface of the bearing ring sleeve, the end of the limiting block is fitted on the outer surface of the adjusting column, a convex ring is coaxially extended on the end of the adjusting column, the convex ring is located inside the bearing ring sleeve, and one end of the convex ring is fitted on the limiting block.

[0012] Preferably, a threaded column is passed through and tightened at the end of the bearing ring sleeve, a clamp seat is coaxially rotatably installed at the end of the threaded column, the clamp seat is fitted to the other end of the convex ring, an extension frame is fixedly installed at the lower end of the bearing ring sleeve, an extension shell is fixedly installed at the upper end of the guide sleeve, the extension frame passes through the interior of the extension shell, the extension frame and the extension shell are slidably matched, a bolt is passed through and tightened at the upper rear edge of the extension shell, the bolt is pressed on the extension frame, and a toggle column is fixedly installed at the upper front edge of the extension shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Place the machine body and the auxiliary handle on the machine body on the lower fixed machine base and the lower fixed handle base respectively, and then cover the upper fixed machine base and the upper fixed handle base on the lower fixed machine base and the upper fixed handle base respectively. At this time, the fixing frame passes through the locking ear, and the fixing pin spring pushes the locking pin so that the locking pin can move to enter between the locking ear and the fixing frame to lock the two together, and then close and fix the lower fixed machine base and the upper fixed machine base, and the lower fixed handle base and the upper fixed handle base, so that the machine body can be assembled on the guide sleeve, and then directly push the toggle column to allow the guide sleeve to slide on the square guide frame, thereby driving the machine body to move in a straight line to grind the outer surface of the rotating shaft workpiece. On the one hand, there is no need to hold the machine body tightly, which effectively improves the comfort during grinding. On the other hand, it can ensure the linear advancement of the machine body to avoid shaking, effectively ensuring the stability during grinding. At the same time, the assembly process is simple and effectively convenient to use.

[0015] 2. By rotating the threaded sleeve, the threaded rod can be driven to move. At this time, the guide ear slides in the slide groove to guide the threaded rod, and the moving threaded rod is used to drive the machine body to move, so as to adjust the height of the grinding plate of the machine body to adapt to shaft workpieces of different diameters to meet the use requirements. At the same time, the threaded column can be rotated to drive the clamping seat to move so that the clamped convex ring can move, and then the adjusting column can be rotated to drive the machine body to rotate to adjust the grinding plate angle of the machine body, that is, to adjust the angle of the grinding plate relative to the shaft workpiece during grinding to adapt to different grinding angles for grinding to further meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an angle grinder with good processing stability according to the present invention;

[0017] Figure 2 It is a schematic diagram of the body of an angle grinder with good processing stability according to the present invention;

[0018] Figure 3 It is a schematic diagram of another viewing angle of the body of an angle grinder with good processing stability according to the present invention;

[0019] Figure 4 The invention provides an angle grinder with good processing stability. Figure 1 A magnified view of middle;

[0020] Figure 5 A schematic diagram of a locking ear of an angle grinder with good processing stability according to the present invention;

[0021] Figure 6 The figure is an internal view of a bearing ring sleeve of an angle grinder with good processing stability according to the present invention.

[0022] In the figure: 1, machine body; 2, extension shell; 3, toggle column; 4, guide sleeve; 5, square guide frame; 6, frame seat; 7, stand; 8, threaded rod; 9, platform; 10, auxiliary handle; 11, lower fixed handle seat; 12, upper fixed handle seat; 13, locking frame; 14, upper fixed machine seat; 15, lower fixed machine seat; 16, plug ear; 17, slot; 18, fixing frame; 19, bearing ring sleeve; 20, bolt; 21, extension frame; 22, adjustment column; 23, locking ear; 24, top ring; 25, locking pin; 26, fixed pin spring; 27, guide pin seat; 28, frame; 29, threaded sleeve; 30, rod seat; 31, guide ear; 32, slide groove; 33, threaded column; 34, clamp seat; 35, convex ring; 36, limiting block. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] like Figure 1-Figure 6 The angle grinder with good processing stability shown in the figure includes a machine body 1 and an auxiliary handle 10 installed at the end of the machine body 1. A locking piece is installed on the outer surface of the machine body 1 and the outer surface of the auxiliary handle 10. An adjusting piece is connected to the end of the locking piece. A guide sleeve 4 is installed at the lower end of the adjusting piece. A square guide frame 5 is slidably installed inside the guide sleeve 4. The guide sleeve 4 and the square guide frame 5 can guide the machine body 1 so that the machine body 1 does not shake. A frame seat 6 is fixedly installed at both ends of the square guide frame 5. The frame seat 6 plays a role in supporting the square guide frame 5. A stepping platform 9 is arranged below the frame seat 6. The stepping platform 9 serves as a step for workers to step on. A vertical frame 7 is fixedly installed at the upper edge of the stepping platform 9. A threaded sleeve 29 is rotatably installed on the upper end of the vertical frame 7. The vertical frame 7 plays a role in supporting the threaded sleeve 29. A threaded rod 8 is screwed through the interior of the threaded sleeve 29. The cooperation between the threaded sleeve 29 and the threaded rod 8 can drive the machine body 1 to move so as to adjust the height of the grinding sheet of the machine body 1 to adapt to shaft workpieces of different diameters. The upper end of the threaded rod 8 is fixed to the frame 6, and the shaft workpiece is driven to rotate by a rotating device. Then, the outer surface of the shaft workpiece is grinded by the machine body 1, i.e., the angle grinder. When the shaft workpiece is fixed to the rotating device, it can be fixed by using pressure straightening technology and anti-loosening locking device, so as to reduce the radial runout value of the shaft extension cylindrical surface, so that the radial round runout value of the shaft extension cylindrical surface is less than or equal to 0.02 mm, thereby improving the rotation accuracy and ensuring the processing stability. Because the above-mentioned operation method is a prior art and has been widely used, it is not elaborated in detail here.

[0025] The threaded rod 8 extends into the interior of the stand 7, and a rod seat 30 is fixedly installed at the lower end of the threaded rod 8. The rod seat 30 serves to support the threaded rod 8. The rod seat 30 fits into the interior of the stand 7. Guide ears 31 extend on both sides of the rod seat 30. Slide grooves 32 are provided on both sides of the stand 7. The guide ears 31 fit into the interior of the slide grooves 32. The guide ears 31 and the slide grooves 32 serve to guide the threaded rod 8.

[0026] The locking member includes a lower fixed machine base 15 which is fitted and installed on the lower part of the outer surface of the machine body 1, and an upper fixed machine base 14 is fitted and installed on the upper part of the outer surface of the machine body 1. The lower fixed machine base 15 and the upper fixed machine base 14 play the role of clamping and fixing the machine body 1. The inner surface shapes of the lower fixed machine base 15 and the upper fixed machine base 14 match the outer surface shape of the machine body 1 to ensure that there is no shaking after fixation. The upper fixed machine base 14 fits on the upper end of the lower fixed machine base 15, and the lower outer surface of the auxiliary handle 10 is fitted and installed with a lower fixed handle base 11, and the upper outer surface of the auxiliary handle 10 is fitted and installed with an upper fixed handle base 12, which fits on the upper end of the lower fixed handle base 11. The upper fixed handle base 12 and the lower fixed handle base 11 can clamp the auxiliary handle 10 to increase the fixing force of the machine body 1, and the inner surfaces of the upper fixed handle base 12 and the lower fixed handle base 11 match the outer surface of the auxiliary handle 10 to ensure that there is no shaking after fixation.

[0027] A locking frame 13 is fixedly installed between the upper end of the upper fixed machine base 14 and the upper end of the upper fixed handle base 12, and the locking frame 13 serves to fix the upper fixed machine base 14 and the upper fixed handle base 12 together. A locking ear 23 is extended from the front end of the locking frame 13, and a fixing frame 18 is fixedly installed between the side surface of the lower fixed handle base 11 and the side surface of the lower fixed machine base 15. The fixing frame 18 serves to fix the lower fixed handle base 11 and the lower fixed machine base 15. The upper end of the fixing frame 18 slides through the interior of the locking ear 23, and two plug ears 16 are symmetrically extended from the upper end of the lower fixed machine base 15. The two plug ears 16 respectively penetrate the two sides of the upper fixed machine base 14, and the plug ears 16 serve to align the upper fixed machine base 14 and the lower fixed machine base 15.

[0028] A seat frame 28 is fixedly installed at the upper edge of the front end of the fixing frame 18, and a guide pin seat 27 is fixedly installed at the end of the seat frame 28. The seat frame 28 plays a role in fixing the guide pin seat 27. A locking pin 25 is installed inside the guide pin seat 27 for sliding through. The guide pin seat 27 plays a role in guiding the locking pin 25. The locking pin 25 sequentially penetrates the outer surface of the lock ear 23 and the outer surface of the fixing frame 18. The locking pin 25 slides with the lock ear 23 and the fixing frame 18. The locking pin 25 plays a role in fixing the lock ear 23 and the fixing frame 18 together. Slots 17 are provided on both sides of the upper fixed machine base 14. The plug ear 16 fits inside the slot 17, and the slot 17 plays a role in plugging with the plug ear 16.

[0029] The outer surface of the locking pin 25 is coaxially inlaid with a top ring 24, which is fitted onto the locking ear 23. The top ring 24 is pushed by the fixing pin spring 26. The outer side of the locking pin 25 is wrapped with a fixing pin spring 26, which pushes the locking pin 25 between the locking ear 23 and the fixing frame 18. One end of the fixing pin spring 26 is fixed to the guide pin seat 27, and the other end of the fixing pin spring 26 is fixed to the top ring 24.

[0030] The adjusting member includes an adjusting column 22 fixedly mounted on the front end of the fixing frame 18, a bearing ring sleeve 19 is coaxially arranged on the outer side of the adjusting column 22, the adjusting column 22 serves as a connection, a plurality of limiting blocks 36 are extended in a circular array at the edge of the inner surface of the bearing ring sleeve 19, the bearing ring sleeve 19 serves to support the limiting blocks 36, the end of the limiting block 36 is fitted to the outer surface of the adjusting column 22, the limiting block 36 serves to allow the adjusting column 22 to rotate about its own axis, a convex ring 35 is coaxially extended at the end of the adjusting column 22, the convex ring 35 is located inside the bearing ring sleeve 19, and one end of the convex ring 35 is fitted on the limiting block 36.

[0031] The end of the carrying ring sleeve 19 is penetrated by a threaded column 33 and tightened, and the end of the threaded column 33 is coaxially rotatably installed with a clamp seat 34, and the threaded column 33 plays a role in driving the clamp seat 34 to move, and the clamp seat 34 is fitted with the other end of the convex ring 35, and the clamp seat 34 can clamp and fix the convex ring 35. The lower end of the carrying ring sleeve 19 is fixedly installed with an extension frame 21, and the upper end of the guide sleeve 4 is fixedly installed with an extension shell 2. The extension frame 21 and the extension shell 2 can adjust the extension distance of the body 1. The extension frame 21 passes through the interior of the extension shell 2, and the extension frame 21 and the extension shell 2 are slidably matched. The bolt 20 is penetrated and tightened at the upper rear edge of the extension shell 2, and the bolt 20 can fix the extension frame 21 in the extension shell 2, and the bolt 20 is pressed on the extension frame 21. A toggle column 3 is fixedly installed at the upper front edge of the extension shell 2, and the toggle column 3 plays a role in facilitating the toggle of the guide sleeve 4.

[0032] When in use, the machine body 1 and the auxiliary handle 10 on the machine body 1 are placed on the lower fixed machine base 15 and the lower fixed handle base 11 respectively, and then the upper fixed machine base 14 and the upper fixed handle base 12 are covered on the lower fixed machine base 15 and the upper fixed handle base 12 respectively. At this time, the fixing frame 18 passes through the locking ear 23, and the fixing pin spring 26 pushes the locking pin 25, so that the locking pin 25 can move to enter between the locking ear 23 and the fixing frame 18 to lock the two together, and then the lower fixed machine base 15 and the upper fixed machine base 14 are closed and fixed, and the lower fixed handle base 11 and the upper fixed handle base 12 are closed and fixed, so that the machine body 1 can be assembled on the guide sleeve 4, and then according to the diameter of the shaft workpiece, the threaded sleeve 29 is rotated to drive the threaded rod 8 to move, and at this time the guide ear 31 slides in the slide groove 32, The threaded rod 8 is guided, and the moving threaded rod 8 is used to drive the machine body 1 to move, so as to adjust the height of the grinding disc of the machine body 1 to adapt to the diameter of the shaft workpiece. At the same time, the threaded column 33 can be rotated to drive the clamp seat 34 to move, so that the clamped convex ring 35 can move, and then the adjusting column 22 can be rotated to drive the machine body 1 to rotate, so as to adjust the grinding disc angle of the machine body 1, that is, adjust the angle of the grinding disc relative to the shaft workpiece during grinding so that it can meet the required grinding angle, and then stand on the step 9 to push the toggle column 3 to let the guide sleeve 4 slide on the square guide frame 5, thereby driving the machine body 1 to move in a straight line to grind the outer surface of the shaft workpiece driven by the rotating equipment to rotate.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An angle grinder with good processing stability, comprising a machine body (1) and an auxiliary handle (10) mounted at the end of the machine body (1), Features: The outer surface of the machine body (1) and the outer surface of the auxiliary handle (10) are provided with a locking piece, the end of the locking piece is connected with an adjusting piece, the lower end of the adjusting piece is provided with a guide sleeve (4), a square guide frame (5) is slidably installed inside the guide sleeve (4), a frame seat (6) is fixedly installed at both ends of the square guide frame (5), a stepping platform (9) is provided below the frame seat (6), a vertical frame (7) is fixedly installed at the upper edge of the stepping platform (9), a threaded sleeve (29) is rotatably installed on the upper end of the vertical frame (7), a threaded rod (8) is screwed through the inside of the threaded sleeve (29), and the upper end of the threaded rod (8) is fixed to the frame seat (6).

2. An angle grinder with good processing stability according to claim 1, Features: The threaded rod (8) extends into the interior of the stand (7), a rod seat (30) is fixedly mounted at the lower end of the threaded rod (8), the rod seat (30) fits in the interior of the stand (7), guide ears (31) extend from both sides of the rod seat (30), sliding grooves (32) are provided on both sides of the stand (7), and the guide ears (31) fit in the interior of the sliding grooves (32).

3. An angle grinder with good processing stability according to claim 1, Features: The locking member comprises a lower fixed machine seat (15) fitted and installed on the lower part of the outer surface of the machine body (1); an upper fixed machine seat (14) is fitted and installed on the upper part of the outer surface of the machine body (1); the upper fixed machine seat (14) is fitted and installed on the upper end of the lower fixed machine seat (15); a lower fixed handle seat (11) is fitted and installed on the lower part of the outer surface of the auxiliary handle (10); an upper fixed handle seat (12) is fitted and installed on the upper part of the outer surface of the auxiliary handle (10); the upper fixed handle seat (12) is fitted and installed on the upper end of the lower fixed handle seat (11).

4. An angle grinder with good processing stability according to claim 3, Features: A lock frame (13) is fixedly installed between the upper end of the upper fixed machine base (14) and the upper end of the upper fixed handle base (12), and a lock ear (23) is extended from the front end of the lock frame (13). A fixing frame (18) is fixedly installed between the side surface of the lower fixed handle base (11) and the side surface of the lower fixed machine base (15), and the upper end of the fixing frame (18) slides through the inside of the lock ear (23). Two plug ears (16) are symmetrically extended from the upper end of the lower fixed machine base (15), and the two plug ears (16) respectively penetrate the two sides of the upper fixed machine base (14).

5. An angle grinder with good processing stability according to claim 4, Features: A seat frame (28) is fixedly installed at the upper edge of the front end of the fixing frame (18), a guide pin seat (27) is fixedly installed at the end of the seat frame (28), a locking pin (25) is slidably installed inside the guide pin seat (27), the locking pin (25) sequentially penetrates the outer surface of the locking ear (23) and the outer surface of the fixing frame (18), the locking pin (25) is slidably matched with the locking ear (23) and the fixing frame (18), and slots (17) are provided on both sides of the upper fixing base (14), and the plug ears (16) are fitted inside the slots (17).

6. An angle grinder with good processing stability according to claim 5, Features: The outer surface of the lock pin (25) is coaxially inlaid with a top ring (24), and the top ring (24) is fitted on the lock ear (23). A pin fixing spring (26) is wound around the outer side of the lock pin (25), one end of the pin fixing spring (26) is fixed to the guide pin seat (27), and the other end of the pin fixing spring (26) is fixed to the top ring (24).

7. An angle grinder with good processing stability according to claim 4, Features: The adjusting member comprises an adjusting column (22) fixedly mounted on the front end of a fixing frame (18); a bearing ring sleeve (19) is coaxially arranged on the outer side of the adjusting column (22); a plurality of limiting blocks (36) are extended in a circular array at the edge of the inner surface of the bearing ring sleeve (19); the end of the limiting block (36) is affixed to the outer surface of the adjusting column (22); a convex ring (35) is coaxially extended from the end of the adjusting column (22); the convex ring (35) is located inside the bearing ring sleeve (19); and one end of the convex ring (35) is affixed to the limiting block (36).

8. An angle grinder with good processing stability according to claim 7, Features: A threaded column (33) is passed through and screwed on the end of the bearing ring sleeve (19), and a clamp seat (34) is coaxially rotatably installed on the end of the threaded column (33). The clamp seat (34) is fitted to the other end of the convex ring (35). A protruding frame (21) is fixedly installed on the lower end of the bearing ring sleeve (19), and a protruding shell (2) is fixedly installed on the upper end of the guide sleeve (4). The protruding frame (21) passes through the interior of the protruding shell (2), and the protruding frame (21) and the protruding shell (2) are slidably matched. A bolt (20) is passed through and screwed on the upper rear edge of the protruding shell (2), and the bolt (20) is pressed on the protruding frame (21). A toggle column (3) is fixedly installed on the upper front edge of the protruding shell (2).

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