Double-ended abrasive disk sharpener

Abstract

The application relates to a double-head abrasive disc grinder and belongs to the technical field of grinding. The double-head abrasive disc grinder comprises a base, a double-head motor arranged on the base, a grinding wheel arranged at the output ends of the two sides of the double-head motor, a fixing wheel arranged on the base and used for fixing a workpiece, and a protective cover arranged on the base and corresponding to the grinding wheel, further comprises a cleaning mechanism, the cleaning mechanism comprises a supporting frame rotatably arranged on the protective cover and a brush plate arranged on the supporting frame and used for abutting against the grinding wheel, the brush plate is detachably arranged on the supporting frame, and a locking assembly for locking the supporting frame is arranged on the protective cover. The application has the effect of quickly disassembling the brush plate.

Description

Technical Field

[0001] This application relates to the field of grinding technology, and in particular to a double-head grinding machine. Background Technology

[0002] In the field of grinding and polishing, grinding discs are core equipment for achieving precision grinding and dimensional calibration of parts, and the requirements for processing accuracy are constantly increasing. However, with the increasing efficiency and precision of grinding discs, the problem of handling the debris generated during the grinding process is becoming more and more prominent.

[0003] Chinese utility model patent CN222711781U discloses a double-head grinding machine, which includes a base, a grinding wheel, and a fixed wheel. A double-head motor is fixedly mounted on the rear side of the upper middle of the base. Protective covers are fixedly mounted on both sides of the double-head motor. A fixing frame is fixedly connected to the side of the protective cover near the fixed wheel, and a cleaning brush is fixedly connected to one end of the fixing frame. In use, the double-head grinding machine in the prior art uses the cleaning brush to contact the grinding wheel, which removes debris adhering to the surface of the grinding wheel.

[0004] Regarding the aforementioned technologies, the cleaning brush plate is prone to wear and tear after long-term use and needs to be replaced. However, the mounting bracket is always fixed on the protective cover, making the disassembly and assembly of the cleaning brush plate quite cumbersome. Utility Model Content

[0005] In order to solve the technical problem that the cleaning brush plate in the existing double-head grinding machine is complicated to disassemble and replace due to the fixed frame, this application provides a double-head grinding machine.

[0006] The dual-head grinding mill provided in this application adopts the following technical solution: A dual-head grinding machine includes a base, a dual-head motor mounted on the base, grinding wheels mounted on both output ends of the dual-head motor, fixing wheels mounted on the base for fixing workpieces, and a protective cover mounted on the base and corresponding to the grinding wheels. It also includes a cleaning mechanism, which includes a support frame rotatably mounted on the protective cover and a brush plate mounted on the support frame for abutting the grinding wheels. The brush plate is detachably mounted on the support frame, and the protective cover is provided with a locking component for locking the support frame.

[0007] By adopting the above technical solution, the brush plate in the cleaning mechanism can abut against the surface of the grinding wheel to sweep away the debris generated during grinding, preventing debris from adhering to the grinding wheel surface and extending the service life of the grinding wheel. When the brush plate wears out, its detachable installation on the support frame allows for quick installation and separation between the brush plate and the support frame. The rotatable adjustment function of the support frame moves the brush plate away from the grinding wheel and provides operating space for the hand. The combination of these two features allows for quick brush plate replacement, solving the problem of cumbersome brush plate installation and removal in existing technologies.

[0008] Optionally, the cover has a mounting hole, the support frame has a plug for insertion into the mounting hole, the locking assembly includes an extension plate and a locking screw, the extension plate is disposed on the support frame and has a locking through hole for arranging the locking screw, and the cover has a locking screw hole that is threadedly engaged with the locking screw.

[0009] By adopting the above technical solution, the support frame achieves a rotatable connection by relying on the plug-in column and the mounting hole on the cover. Furthermore, due to the presence of the locking through hole on the extension plate, during adjustment, it is only necessary to disengage the locking screw from the locking screw hole on the cover. The locking screw does not need to be completely removed from the locking through hole before the support frame can be rotated. After the brush plate is reinstalled, the locking screw can be tightened to fix it. The structure is simple and the adjustment is convenient.

[0010] Optionally, the plug-in post is provided with a limiting ridge, and the mounting hole is provided with a limiting arc groove corresponding to the plug-in post, thereby limiting the rotation range of the plug-in post.

[0011] By adopting the above technical solution, the cooperation between the limiting edge and the limiting arc groove can limit the rotation angle of the support frame, avoid excessive rotation of the support frame during adjustment which would cause the brush plate to collide with the base, ensure that the distance between the brush plate and the grinding wheel is within an acceptable error range when the support frame is reset, and reduce wear of components caused by excessive rotation.

[0012] Optionally, the brush plate is further provided with a buckle assembly that is detachably connected to the support frame, and the support frame has a slot that locks into the buckle assembly.

[0013] By adopting the above technical solution, the cooperation between the buckle assembly and the card slot provides a quick locking structure for the brush plate. The fixing can be completed by the snapping of the buckle and the card slot, which improves the replacement efficiency of the brush plate.

[0014] Optionally, the buckle assembly includes a buckle disposed at one end of the brush plate facing the support frame and a first elastic member connected to the buckle. The brush plate has an installation groove for arranging the first elastic member. One end of the first elastic member is fixed to the inner wall of the installation groove, and the other end of the first elastic member is fixedly connected to the buckle.

[0015] By adopting the above technical solution, the first elastic element can provide elastic support for the buckle. When the brush plate is installed, the buckle is squeezed and compresses the first elastic element, and the buckle enters the installation groove. After the buckle reaches the groove, the first elastic element pushes the buckle into the groove, thereby realizing the automatic locking of the brush plate.

[0016] Optionally, the outer wall of the support frame is provided with an unlocking knob corresponding to the slot, the unlocking knob is provided with a short threaded post, and the outer wall of the support frame is provided with a short threaded through hole that is threadedly engaged with the short threaded post and communicates with the slot.

[0017] By adopting the above technical solution, when disassembling the brush plate, the unlocking knob can be rotated, and the short threaded column moves axially in the short threaded through hole, pushing the buckle to disengage from the slot, thus unlocking the brush plate in one step and improving the convenience of operation.

[0018] Optionally, the support frame is further provided with a push plate in the slot, the push plate being located between the short threaded post and the buckle, and the push plate being provided with a bearing component that rotates with the short threaded post.

[0019] By adopting the above technical solution, the push plate can increase the contact area between the short threaded post and the buckle, avoiding deformation or damage to the buckle due to insufficient contact area when the short threaded post directly pushes the buckle, thus extending the service life of the buckle assembly; the short threaded post and the push plate are connected by a rotating bearing, which can smoothly convert the rotational force of the short threaded post into a thrust on the buckle, achieving smooth force transmission.

[0020] Optionally, the support frame is provided with an unlocking button at the end away from the protective cover. The unlocking button is provided with an unlocking post for pushing the buckle. The support frame has a through hole for the unlocking post to be inserted, and a second elastic member is provided in the through hole and sleeved on the unlocking post. One end of the second elastic member is fixed to the inner wall of the through hole, and the other end of the second elastic member is fixed to the unlocking post.

[0021] By adopting the above technical solution, another unlocking method is disclosed. Pressing the unlocking button at the end of the support frame can push the unlocking column to open the buckle, so that the buckle is disengaged from the slot and the brush plate is unlocked. At the same time, the second elastic element can drive the unlocking column to automatically reset after the unlocking button is released, without the need for manual adjustment.

[0022] Optionally, the brush plate is provided with a driving ramp for the unlocking post to push.

[0023] By adopting the above technical solution, the driving inclined plane can convert the axial thrust of the unlocking column into the displacement of the buckle in the direction of the vertical brush plate, which conforms to the principle of force decomposition and makes it easier for the unlocking column to push the buckle.

[0024] Optionally, the back of the brush plate is provided with anti-slip textured surfaces for easy hand assembly and disassembly, and the anti-slip textured surfaces are spaced apart along the length of the brush plate.

[0025] By adopting the above technical solution, the anti-slip texture can increase the friction between the hand and the back of the brush plate, avoid slipping due to sweaty hands or a smooth brush plate surface when disassembling and assembling the brush plate, and improve the stability of the disassembly and assembly process.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. When installing the brush plate, the snap-fit ​​assembly and the slot can be engaged to quickly fix the brush plate. When disassembling, simply rotate the unlocking knob on the outer wall of the support frame. The short threaded post moves axially in the threaded through hole to push the snap-fit ​​out of the slot and release the brush plate from its fixed state. At the same time, the design of the locking assembly, locking screw hole and locking through hole can avoid the locking screw being completely removed. The locking screw only needs to be loosened to the locking screw hole on the release cover to adjust the support frame, improving the efficiency of brush plate replacement.

[0027] 2. The limiting edge on the support frame insertion post matches the limiting arc groove in the protective cover mounting hole, which can limit the rotation range of the support frame and prevent the brush plate from rotating excessively and the grinding wheel from misaligning or colliding during the adjustment process.

[0028] 3. Press the unlock button on the end of the support frame away from the cover to push the unlocking column to open the latch, allowing the brush plate to quickly detach from the support frame; at the same time, the second elastic element can also drive the unlocking column to automatically reset after the unlock button is released, without the need for manual adjustment. Attached Figure Description

[0029] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the structure of the locking component in an embodiment of this application.

[0032] Figure 3 This is a cross-sectional view of the first unlocking method according to an embodiment of this application.

[0033] Figure 4 This is a cross-sectional view of the first unlocking method according to an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Base; 2. Dual-head motor; 3. Grinding wheel; 4. Fixed wheel; 5. Protective cover; 51. Mounting hole; 52. Locking screw hole; 53. Limiting arc groove; 6. Cleaning mechanism; 61. Support frame; 611. Insertion post; 6111. Limiting ridge; 612. Short threaded through hole; 613. Through hole; 614. Second elastic element; 62. Brush plate; 621. Mounting groove; 63. Locking assembly; 631. Extension plate; 6311. Locking through hole; 632. Locking screw; 64. Buckle assembly; 641. Buckle; 6411. Guide surface; 6412. Drive inclined surface; 642. First elastic element; 65. Unlocking knob; 651. Short threaded post; 652. Push plate; 653. Bearing component; 66. Anti-slip ridge; 67. Unlocking button; 671. Unlocking post. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] Example 1: This application discloses a dual-head grinding machine.

[0037] Reference Figure 1 A double-head grinding machine includes a base 1, a double-head motor 2 mounted on the base 1, grinding wheels 3 mounted on both output ends of the double-head motor 2, fixing wheels 4 mounted on the base 1 for fixing workpieces, and a protective cover 5 mounted on the base 1 and corresponding to the grinding wheels 3. The base 1 serves as the main load-bearing structure, enabling integrated installation and stable support of all components.

[0038] Reference Figure 1 and Figure 2 The protective cover 5 is equipped with a cleaning mechanism 6, which includes a support frame 61 rotatably mounted on the outer wall of the protective cover 5 and a brush plate 62 mounted on the support frame 61 and used to hold the grinding wheel 3 against it. The brush plate 62 is detachably mounted on the support frame 61. The brush plate 62 has bristles for contacting the surface of the grinding wheel 3, which clean away the debris generated during grinding and prevent the debris from sticking to the surface of the grinding wheel 3. The detachable mounting of the brush plate 62 and the rotatable adjustment of the support frame 61 move the brush plate 62 away from the grinding wheel 3 and provide operating space for the hand, allowing for quick replacement of the brush plate 62.

[0039] Reference Figure 2The protective cover 5 has a mounting hole 51, and the support frame 61 has a plug-in post 611 for inserting into the mounting hole 51. The support frame 61 and the protective cover 5 can be rotatably connected through the mounting hole 51 and the plug-in post 611. The support frame 61 is provided with a locking assembly 63 for fixing to the protective cover 5. The locking assembly 63 includes an extension plate 631 and a locking screw 632. The extension plate 631 is integrally mounted on the support frame 61, and the extension plate 631 has a locking through hole 6311 for accommodating the locking screw 632. The protective cover 5 has a locking screw hole 52 that threadedly engages with the locking screw 632. When the position of the support frame 61 needs to be adjusted, simply rotate the locking screw 632 to disengage it from the locking screw hole 52, and then rotate the support frame 61. After the brush plate 62 is installed, rotate the support frame 61 back to its original position, and then tighten the locking screw 632 to complete the fixing.

[0040] Reference Figure 2 The outer wall of the plug-in post 611 is provided with a limiting ridge 6111 along its axial direction. The mounting hole 51 has a limiting arc groove 53 corresponding to the plug-in post 611. The cooperation between the limiting ridge 6111 and the limiting arc groove 53 can limit the rotation angle of the support frame 61, avoiding excessive rotation of the support frame 61 during adjustment, which would cause the brush plate 62 to collide with the base 1. In this embodiment, the rotation range of the limiting ridge 6111 is 0 degrees to 60 degrees.

[0041] Reference Figure 3 The brush plate 62 is provided with a snap-fit ​​assembly 64 that is detachably connected to the support frame 61. The support frame 61 has a slot for locking with the snap-fit ​​assembly 64. The snap-fit ​​assembly 64 includes a snap-fit ​​641 located at the end of the brush plate 62 facing the support frame 61 and a first elastic member 642 connected to the snap-fit ​​641. The first elastic member 642 is a spring. The brush plate 62 has mounting grooves 621 on both opposite sides for arranging the first elastic member 642. One end of the first elastic member 642 is fixed to the inner wall of the mounting groove 621, and the other end of the first elastic member 642 is fixedly connected to the snap-fit ​​641. A guide surface 6411 is provided on the side of the snap-fit ​​641 near the grinding wheel 3. The guide surface 6411 facilitates the snap-fit ​​641 being pressed into the mounting groove 621. When the brush plate 62 is installed, the buckle 641 is compressed and the elastic element is compressed. The buckle 641 enters the mounting groove 621. When the buckle 641 reaches the groove position, the first elastic element 642 pushes the buckle 641 into the groove, realizing the automatic locking of the brush plate 62.

[0042] Reference Figure 3To facilitate unlocking of the latch 641, the outer wall of the support frame 61 is provided with an unlocking knob 65 corresponding to the latch slot. The unlocking knob 65 has a short threaded post 651, and the outer wall of the support frame 61 has a short threaded through hole 612 that is threadedly engaged with the short threaded post 651 and communicates with the latch slot. The support frame 61 also has a push plate 652 in the latch slot. The push plate 652 is located between the short threaded post 651 and the latch 641. The short threaded post 651 and the push plate 652 are connected by a rotating bearing 653, and the push plate is adapted to fit the guide surface 6411 on the side facing the latch, so that the rotational force of the short threaded post 651 can be smoothly converted into a pushing force on the latch 641. When disassembling the brush plate 62, the unlocking knob 65 is rotated, and the short threaded post 651 moves axially in the short threaded through hole 612. The push plate 652 pushes the latch 641 out of the latch slot, thereby unlocking the brush plate 62 and removing it from the support frame 61.

[0043] Reference Figure 3 The brush plate 62 has anti-slip ridges 66 spaced along the length of the brush plate 62 on the back away from the bristles, which can increase the friction between the hand and the brush plate 62 and prevent slipping during disassembly and assembly.

[0044] The implementation principle of a dual-head grinding machine in this application embodiment is as follows: When replacing the brush plate 62, first loosen the locking screw 632 to disengage it from the locking screw hole 52, rotate the support frame 61 so that the brush plate 62 is away from the grinding wheel 3, making it easy to disassemble and assemble; then rotate the unlocking knob 65, and through the axial movement of the short threaded column 651 in the short threaded through hole 612, drive the push plate 652 to push the buckle 641, so that the buckle 641 compresses the first elastic element 642 and enters into the mounting groove 621 to disengage from the groove. At this time, the brush plate 62 can be removed from the support frame 61 by holding the anti-slip texture 66 on the back of the brush plate 62.

[0045] When installing the brush plate 62, align the brush plate 62 with the slot position of the support frame 61, push the brush plate 62 to compress the buckle 641 into the mounting groove 621. When the buckle 641 reaches the slot position, the first elastic element 642 resets and pushes the buckle 641 into the slot, completing the installation and fixing of the brush plate 62. Then rotate the support frame 61 to make the brush plate 62 abut against the surface of the grinding wheel 3 again, tighten the locking screw 632 into the locking screw hole 52 to fix the support frame 61, and you can continue to use the double-head grinding machine for processing.

[0046] Example 2: Compared with Embodiment 1, this embodiment is identical in structure except for the unlocking method of the brush plate 62.

[0047] Reference Figure 1 and Figure 4The support frame 61 has an unlocking button 67 at its end away from the protective cover 5. The unlocking button 67 has an unlocking post 671 for pushing the latch 641. The support frame 61 has a through hole 613 for inserting the unlocking post 671. The support frame 61 has a second elastic member 614 sleeved on the unlocking post 671 within the through hole 613. The second elastic member 614 is a spring, with one end fixed to the inner wall of the through hole 613 and the other end fixed to the unlocking post 671.

[0048] Reference Figure 4 The brush plate 62 is provided with a driving inclined surface 6412 for the unlocking post 671 to push. The driving inclined surface 6412 can convert the axial thrust of the unlocking post 671 into the displacement of the buckle 641 in the direction perpendicular to the length of the brush plate 62, making it easier for the unlocking post 671 to push the buckle 641.

[0049] Reference Figure 4 Pressing the unlock button 67 will push the unlock post 671, causing the buckle 641 to disengage from the card slot and unlock the brush plate 62. At the same time, the second elastic element 614 can automatically reset the unlock post 671 after the unlock button 67 is released.

[0050] In this embodiment, the disassembly principle of the brush plate 62 is as follows: Pressing the unlock button 67 causes the unlocking post 671 to move axially along the through hole 613 and stretch the second elastic element 614. The unlocking post 671 abuts against the driving inclined surface 6412, pushing the latch 641 to compress the second elastic element, causing the latch 641 to enter the mounting groove 621 and disengage from the groove. At this point, the brush plate 62 can be removed. After the brush plate 62 disengages from the support frame 61, releasing the unlock button 67 resets the second elastic element 614 and drives the unlocking post 671 and the unlock button 67 back to their initial positions.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-head grinding machine, comprising a base (1), a double-head motor (2) disposed on the base (1), grinding wheels (3) disposed on both output ends of the double-head motor (2), a fixing wheel (4) mounted on the base (1) for fixing the workpiece, and a protective cover (5) disposed on the base (1) and corresponding to the grinding wheel (3), characterized in that, It also includes a cleaning mechanism (6), which includes a support frame (61) rotatably mounted on the cover (5) and a brush plate (62) disposed on the support frame (61) and used to abut against the grinding wheel (3). The brush plate (62) is detachably mounted on the support frame (61), and the support frame (61) is provided with a locking component (63) for fixing to the cover (5).

2. The double-head grinding machine according to claim 1, characterized in that, The protective cover (5) has a mounting hole (51), and the support frame (61) is provided with a plug post (611) for insertion into the mounting hole (51). The locking assembly (63) includes an extension plate (631) and a locking screw (632). The extension plate (631) is provided on the support frame (61), and the extension plate (631) has a locking through hole (6311) for the locking screw (632) to be arranged. The protective cover (5) has a locking screw hole (52) that is threadedly engaged with the locking screw (632).

3. A double-head grinding mill according to claim 2, characterized in that, The plug (611) is provided with a limiting ridge (6111), and the mounting hole (51) is provided with a limiting arc groove (53) corresponding to the plug (611), and the rotation range of the plug (611) is limited by the limiting arc groove (53).

4. A double-head grinding mill according to claim 2, characterized in that, The brush plate (62) is also provided with a buckle assembly (64) that is detachably connected to the support frame (61), and the support frame (61) has a slot that locks into the buckle assembly (64).

5. A double-head grinding mill according to claim 4, characterized in that, The buckle assembly (64) includes a buckle (641) disposed on one end of the brush plate (62) facing the support frame (61) and a first elastic member (642) connected to the buckle (641). The brush plate (62) has an installation groove (621) for arranging the first elastic member (642). One end of the first elastic member (642) is fixed to the inner wall, and the other end of the first elastic member (642) is fixedly connected to the buckle (641).

6. A double-head grinding mill according to claim 5, characterized in that, The outer wall of the support frame (61) is provided with an unlocking knob (65) corresponding to the slot. The unlocking knob (65) is provided with a short threaded post (651). The outer wall of the support frame (61) is provided with a short threaded through hole (612) that is threaded to the short threaded post (651) and communicates with the slot.

7. A double-head grinding mill according to claim 6, characterized in that, The support frame (61) is further provided with a push plate (652) in the slot. The push plate (652) is located between the short threaded post (651) and the buckle (641). The push plate (652) is provided with a bearing (653) that rotates with the short threaded post (651).

8. A double-head grinding mill according to claim 5, characterized in that, The support frame (61) is provided with an unlocking button (67) at the end away from the protective cover (5). The unlocking button (67) is provided with an unlocking post (671) for pushing the buckle (641). The support frame (61) has a through hole (613) for the unlocking post (671) to be inserted. A second elastic member (614) is provided in the through hole (613) and sleeved on the unlocking post (671). One end of the second elastic member (614) is fixed to the inner wall of the through hole (613), and the other end of the second elastic member (614) is fixed to the unlocking post (671).

9. A double-head grinding mill according to claim 8, characterized in that, The brush plate (62) is provided with a driving ramp (6412) for the unlocking post (671) to push.

10. A double-head grinding mill according to claim 1, characterized in that, The back of the brush plate (62) is provided with anti-slip ridges (66) for easy hand assembly and disassembly, and the anti-slip ridges (66) are distributed at intervals along the length direction of the brush plate (62).

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