A stainless steel mechanical part maintenance polisher with quick replaceable grinding head

Abstract

The utility model discloses a stainless steel mechanical spare maintenance polisher of quick replacement grinding head belongs to mechanical maintenance equipment technical field, including shell, rotation column, quick change subassembly, grinding head, baffle and adjusting assembly, quick change subassembly includes the anti -skid nut of screw connection in rotation column, the cross drive column of fixed in rotation column, the support ball of radial removal and the ejection head of sliding in rotation column, through the rotation anti -skid nut can drive ejection head removal, and promote support ball to extend to realize quick locking or release to grinding head. Adjusting assembly includes with baffle fixed link's push board and be used for locking push board's threaded column, through adjusting threaded column can conveniently adjust baffle position to adapt to the grinding head of different size. The utility model discloses have the advantage such as quick replacement grinding head without tool, convenient operation, high work efficiency, strong versatility and safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of mechanical repair equipment, and in particular to a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head. Background Technology

[0002] Stainless steel mechanical parts are widely used in many industrial fields due to their excellent corrosion resistance and mechanical properties. However, during long-term service, these parts inevitably develop surface defects due to wear, scratches, or impacts, requiring timely repair and maintenance, among which grinding is a key repair process. Handheld grinders, as commonly used tools for such fine repair work, directly affect the quality and efficiency of repairs due to their ease of use.

[0003] During the use of a grinding machine, the grinding head is a consumable item that will wear down with use and needs to be replaced frequently. At the same time, depending on the different degrees of damage to stainless steel parts or different stages of repair, such as from rough grinding to remove the damaged layer to fine polishing to restore the surface finish, it is also necessary to change the grinding head to a different grit or material.

[0004] Existing handheld grinders typically use threaded connections or collet clamps to secure grinding heads during replacement. Both methods share a common drawback: the replacement process is relatively cumbersome. The operator must interrupt their work and use wrenches, pins, or other specialized tools to disassemble and install the grinding head. This process is not only multi-step but also time-consuming, especially in complex maintenance tasks requiring multiple grinding head replacements, severely impacting overall workflow and maintenance efficiency.

[0005] Therefore, this utility model proposes a stainless steel mechanical parts repair and grinding machine with quick-change grinding head to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, aiming to improve the problems of existing stainless steel mechanical parts repair grinding machines, such as the cumbersome and time-consuming process of changing the grinding head, which usually requires the use of special tools.

[0007] To achieve the above objectives, this utility model provides a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, including a housing, a non-slip handle fixedly connected to the housing, and a rotating column rotatably connected inside the housing; it also includes a quick-change assembly, a grinding head, a baffle, and an adjustment assembly.

[0008] The quick-change assembly includes an anti-slip nut, a cross-shaped drive post, a support ball, a threaded groove, and an ejector head.

[0009] The cross-shaped drive column is fixedly connected to the outer wall of the rotating column. The outer wall of the rotating column is machined with a threaded groove. The rotating column has a through hole that allows the support ball to move radially. The ejector head is slidably connected to the hollow interior of the rotating column. The anti-slip nut is threadedly connected to the threaded groove on the outer wall of the rotating column, and the inner end face of the anti-slip nut abuts against the ejector head. The adjusting component is used to adjust the position of the baffle.

[0010] Preferably, the inner wall of the grinding head is provided with a cross groove that matches the cross drive column.

[0011] Preferably, the adjustment assembly includes an adjustment plate fixedly connected to the outer casing, a support block fixedly connected to the adjustment plate, a push plate slidably connected inside the adjustment plate, a baffle fixedly connected to the push plate, and a threaded hole provided on the push plate.

[0012] Preferably, the adjustment assembly further includes a threaded post that is threadedly connected to the support block, and the end of the threaded post can be selectively screwed into the threaded hole to lock the push plate.

[0013] Preferably, the adjusting assembly further includes a spring, with both ends of the spring connected to the push plate and the adjusting plate, respectively.

[0014] Preferably, the end of the ejector head facing the support ball is formed into a conical surface.

[0015] Preferably, the outer peripheral wall of the anti-slip nut is provided with anti-slip texture, and an auxiliary handle is also fixedly connected to the outer shell.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting up a quick-change component, the rotating anti-slip nut drives the ejector head, and then the radial movement of the support ball quickly locks or releases the grinding head. This solves the problems of complex structure, need for tools and long time when changing the grinding head in the prior art. It achieves the effect of quick disassembly and assembly of the grinding head without tools, convenient operation and significantly improved maintenance efficiency.

[0018] 2. This utility model, by setting an adjustment component, uses a threaded column to lock or release the slidingly connected push plate, thereby driving the baffle to conveniently adjust its position. This solves the problems of fixed size of the protective baffle of the existing grinding machine, inability to adapt to different specifications of grinding heads, poor protective effect and safety hazards. It achieves the effect of flexibly adapting to different sizes of grinding heads and enhancing the versatility and protective safety of the device. Attached Figure Description

[0019] Figure 1This is a perspective view of a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head proposed in this utility model.

[0020] Figure 2 A schematic diagram of an auxiliary handle for a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, as proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the support ball for a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, as proposed in this utility model.

[0022] Figure 4 A schematic diagram of an anti-slip nut for a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, as proposed in this utility model.

[0023] Figure 5 This is a schematic diagram of the baffle of a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, as proposed in this utility model.

[0024] Legend:

[0025] 1. Anti-slip grip; 2. Auxiliary grip; 3. Housing; 4. Grinding head; 5. Quick-change assembly; 501. Anti-slip nut; 502. Cross drive column; 503. Support ball; 504. Rotating column; 505. Threaded groove; 506. Ejector head; 6. Baffle; 7. Adjustment assembly; 701. Adjustment plate; 702. Push plate; 703. Threaded hole; 704. Threaded column; 705. Support block; 706. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-5 This utility model provides a stainless steel mechanical parts repair and grinding machine with a quick-change grinding head, which aims to solve the problems of complex and time-consuming grinding head replacement structure and poor safety protection effect of existing grinding machines and poor adaptability of protective baffles.

[0028] Specifically, the machine includes a housing 3 that serves as a mounting base and housing cavity. To facilitate stable gripping by the operator, a non-slip grip 1 and an auxiliary grip 2 are fixedly connected to the housing 3. Inside the housing 3, a rotating column 504 for outputting power is rotatably connected via a bearing. The front end of the rotating column 504 is used to detachably mount a grinding head 4. To enable quick replacement of the grinding head 4, a quick-change assembly 5 is provided on the rotating column 504. To accommodate grinding heads 4 of different sizes and provide safety protection, the grinder also includes a baffle 6 and an adjustment assembly 7 for adjusting the position of the baffle 6.

[0029] The quick-change assembly 5 includes an anti-slip nut 501, a cross drive column 502, a support ball 503, a threaded groove 505, and an ejector head 506; the outer wall of the rotating column 504 is fixedly connected to the cross drive column 502 near the front end, which is used to cooperate with the grinding head 4 to transmit torque;

[0030] The outer wall of the rotating column 504 behind the cross-shaped drive column 502 is machined with a threaded groove 505. The rotating column 504 has a through hole for radial movement of one or more support balls 503. The support balls 503 extend radially to lock the grinding head 4. A push-out head 506 is slidably connected inside the hollow interior of the rotating column 504. One end of the push-out head 506 facing the support ball 503 is formed into a conical surface. This conical surface is used to push the support ball 503 outward. The anti-slip nut 501 is connected via an internal thread. The threaded groove 505 is attached to the outer wall of the rotating column 504, and the inner end face of the anti-slip nut 501 always abuts against the tail of the ejector head 506. By rotating the anti-slip nut 501, the ejector head 506 can be driven to slide axially back and forth inside the rotating column 504. Thus, the radial extension or retraction of the support ball 503 is controlled by the conical surface of the ejector head 506, thereby completing the locking and releasing of the grinding head 4. The outer peripheral wall of the anti-slip nut 501 is provided with anti-slip texture for easy manual rotation operation.

[0031] The adjusting component 7 is used to move the baffle 6 and to position it securely. The adjusting component 7 is connected to the housing 3 and is linked with the baffle 6.

[0032] The adjustment assembly 7 includes an adjustment plate 701, a push plate 702, a threaded hole 703, a threaded post 704, a support block 705, and a spring 706. The adjustment plate 701 serves as the mounting base of the adjustment assembly 7 and is fixedly connected to the side wall of the housing 3. A limiting groove is provided on the adjustment plate 701. The push plate 702 is slidably connected to the limiting groove of the adjustment plate 701. The push plate 702 can reciprocate linearly along the length direction of the limiting groove. The baffle 6 is fixedly connected to the outer end of the push plate 702, so that the baffle 6 can adjust its position as the push plate 702 slides.

[0033] To lock the adjusted push plate 702, a support block 705 is fixedly connected to the adjusting plate 701. The support block 705 has a threaded through hole that mates with the threaded post 704. The push plate 702 has a corresponding threaded hole 703. The threaded post 704 passes through the threaded through hole on the support block 705 and is threadedly connected to it. When locking is required, the threaded post 704 can be rotated so that the end of the threaded post 704 is screwed into and pressed against the threaded hole 703 of the push plate 702. Through the self-locking characteristic of the threaded connection and the friction generated by the end pressing, the push plate 702 is firmly locked on the adjusting plate 701, thereby fixing the baffle 6 in the required position and ensuring the stability of the position of the baffle 6 under the working vibration of the grinding machine.

[0034] In order to achieve stable and reliable torque transmission between the rotating column 504 and the grinding head 4 and to prevent slippage during the grinding process, a cross groove matching the cross drive column 502 is provided on the inner wall of the grinding head 4. During installation, the cross drive column 502 is fully embedded in the cross groove of the grinding head 4 to form a surface contact transmission fit.

[0035] In order to achieve a smooth and effective radial push on the support ball 503, the end of the ejector head 506 facing the support ball 503 is formed into a conical surface. When the ejector head 506 moves axially, the conical surface can smoothly convert the axial thrust into the radial thrust on the support ball 503, so that the support ball 503 is uniformly pushed outward.

[0036] In order to provide initial limiting in the event that the adjusting component 7 is not locked, and to prevent the baffle 6 from accidentally slipping and touching the grinding head 4 due to gravity or vibration, the adjusting component 7 also includes a spring 706. The two ends of the spring 706 are connected to the push plate 702 and the adjusting plate 701, respectively. The spring 706 provides a continuous tension or pressure to pre-tighten and buffer the position of the push plate 702.

[0037] To further enhance the stability and safety of the grinder during operation and to facilitate two-handed operation to cope with greater grinding resistance, an auxiliary grip 2 is fixedly connected to the outer casing 3. The auxiliary grip 2 and the anti-slip grip 1 make it convenient for the operator to grip the grinder firmly from different angles.

[0038] Working principle: When using this grinder to repair stainless steel mechanical parts, hold the anti-slip handle 1 and the auxiliary handle 2 and start the grinding device inside the outer shell 3. This will drive the rotating column 504 to rotate, thereby driving the grinding head 4 to rotate for grinding and repair. The grinding head 4 can be quickly replaced by the quick-change component 5, and the baffle 6 can be adjusted by the adjustment component 7 to accommodate different sizes of grinding heads 4.

[0039] When using the quick-change assembly 5 to quickly change the grinding head 4, first rotate the anti-slip nut 501. The anti-slip nut 501 rotates inside the threaded groove 505, thus rotating the anti-slip nut 501 to remove the rotating column 504. After the support ball 503 loses the support of the ejector head 506, the grinding head 4 can be directly removed. Then, insert the replacement grinding head 4 into the outer wall of the rotating column 504 and push the grinding head 4 to the outer wall of the cross-shaped drive column 502. When the rotating column 504 rotates, the rotating column 502... The cross-shaped drive column 502 fixed on the outer wall will drive the grinding head 4 to rotate together, rotating the anti-slip nut 501 to the outer wall of the rotating column 504, and then rotating the anti-slip nut 501 upward. When the anti-slip nut 501 drives the ejector head 506 upward, the ejector head 506 pushes the support ball 503 outward, so that the support ball 503 is pushed into the rotating column 504 and the grinding head 4. The support ball 503 fixes the grinding head 4 to the outer wall of the rotating column 504, thereby quickly changing the grinding head 4.

[0040] When installing grinding heads 4 of different sizes, the position of the baffle 6 is adjusted by adjusting the component 7 to accommodate the different sizes of grinding heads 4. First, the threaded post 704 is rotated outward, causing the threaded post 704 to rotate inside the support block 705, rotating the threaded post 704 out of the threaded hole 703 opened in the push plate 702. Then, the push plate 702 is pulled to slide inside the adjusting plate 701, thereby adjusting the position of the push plate 702. The push plate 702 drives the baffle 6 to adjust its position. After the baffle 6 is adjusted to the appropriate position, the threaded post 704 is rotated to rotate into the threaded hole 703, thereby fixing the push plate 702 and the baffle 6. Under the elastic action of the spring 706, it is prevented that if the push plate 702 is not fixed, the baffle 6 may accidentally touch the grinding head 4 and damage the grinding head 4.

Claims

1. A stainless steel mechanical parts repair and grinding machine with quick-change grinding head, comprising a housing (3) and a non-slip grip (1), wherein the non-slip grip (1) is fixedly connected to the housing (3), and a rotating column (504) is rotatably connected inside the housing (3), characterized in that, It also includes a quick-change assembly (5) and a grinding head (4); The quick-change assembly (5) includes a cross-shaped drive column (502) fixedly connected to the outer wall of the rotating column (504), and a threaded groove (505) machined on the outer wall of the rotating column (504). A through hole is provided on the rotating column (504) for the support ball (503) to move radially. A top head (506) is slidably connected to the hollow interior of the rotating column (504). The quick-change assembly (5) also includes an anti-slip nut (501) threaded to the threaded groove (505) on the outer wall of the rotating column (504). The inner end face of the anti-slip nut (501) abuts against the ejector head (506) and is used to push the ejector head (506) to move axially when the anti-slip nut (501) is tightened, thereby causing the ejector head (506) to push the support ball (503) to protrude outward along the through hole to lock the grinding head (4). It also includes a baffle (6) and an adjustment assembly (7) for adjusting the position of the baffle (6).

2. The stainless steel mechanical parts repair and grinding machine with quick-change grinding head as described in claim 1, characterized in that, The inner wall of the grinding head (4) is provided with a cross groove that matches the cross drive column (502) for transmitting torque when the rotating column (504) rotates.

3. The stainless steel mechanical parts repair and grinding machine with quick-change grinding head as described in claim 1, characterized in that, The adjustment assembly (7) includes an adjustment plate (701) fixedly connected to the outer shell (3); a support block (705) is fixedly connected to the adjustment plate (701); a push plate (702) is slidably connected inside the adjustment plate (701); and a baffle (6) is fixedly connected to the push plate (702); a threaded hole (703) is provided on the push plate (702).

4. The stainless steel mechanical parts repair and grinding machine with quick-change grinding head as described in claim 3, characterized in that, The adjustment assembly (7) further includes a threaded post (704) which is threaded to the support block (705), and the end of the threaded post (704) can be selectively screwed into the threaded hole (703) to lock the push plate (702).

5. The stainless steel mechanical parts repair and grinding machine with quick-change grinding head as described in claim 4, characterized in that, The adjustment assembly (7) further includes a spring (706), the two ends of which are connected to the push plate (702) and the adjustment plate (701), respectively.

6. The stainless steel mechanical parts repair and grinding machine with quick-change grinding head as described in claim 1, characterized in that, The end of the ejector head (506) facing the support ball (503) is formed into a conical surface.

7. The stainless steel mechanical parts repair and grinding machine with quick-change grinding head as described in claim 1, characterized in that, The outer peripheral wall of the anti-slip nut (501) is provided with anti-slip texture, and an auxiliary handle (2) is also fixedly connected to the outer shell (3).

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