Angle grinding piece replacement auxiliary device for angle grinder

Abstract

The utility model discloses an angle grinding disc replacement auxiliary device for an angle grinder, which belongs to the technical field of angle grinders, and comprises a bottom plate, the top surface of the bottom plate is fixedly connected with a supporting seat, a movable groove is arranged in the supporting seat, a plurality of moving grooves are arranged on the top surface of the supporting seat, an inner cavity of the movable groove is rotatably connected with a bidirectional screw rod, and the bidirectional screw rod is connected with a rotating shaft. A first motor is fixedly installed on the side face of the supporting base, and an output shaft of the first motor is connected with the end of the bidirectional lead screw. According to the angle grinder fixing device, when an angle grinding piece on an angle grinder is replaced, the angle grinder is placed on the supporting base, the two clamping plates are driven to be close to each other through thread fit between the two-way lead screw and the movable base, the angle grinder is clamped and fixed through rubber pads on the inner sides of the two clamping plates, and the function of stably fixing the angle grinder is achieved; and meanwhile, angle grinders with different boundary dimensions can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of angle grinder technology, and more specifically, to an auxiliary device for changing angle grinding discs for angle grinders. Background Technology

[0002] An angle grinder, also known as a grinding machine or disc grinder, is an abrasive tool used for cutting and polishing fiberglass. It is a handheld power tool primarily used for cutting, grinding, and brushing metals and stone. Additionally, angle grinders are also used in laser cutting to process certain parts.

[0003] A search revealed that utility model patent CN220921899U discloses an auxiliary device for changing angle grinder discs, including a base, a placement chamber, a cover plate, and locking blocks. The placement chamber is connected to the upper part of the base. Cover plates are rotatably connected to the upper front sides of both sides of the placement chamber. Locking blocks are connected to the upper rear sides of both sides of the placement chamber, and each locking block engages with the rear of the adjacent cover plate. This patent uses the placement chamber and limiting components to limit the angle grinder and angle grinder disc, making the angle grinder more stable during disc replacement and preventing accidental triggering of the angle grinder during disc installation and replacement, thus improving the safety of disc replacement. However, the aforementioned patent has the following shortcomings: the space width between the placement chamber and the cover plate is fixed, making it inconvenient to fix angle grinders of different sizes; and the side thickness of the angle grinder disc is relatively thin, making it difficult to fix it using the limiting components. Therefore, we propose an auxiliary device for changing angle grinder discs. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an auxiliary device for changing angle grinding discs for angle grinders.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] An auxiliary device for changing angle grinding discs for an angle grinder includes a base plate. A support seat is fixedly connected to the top surface of the base plate. The support seat has a movable groove inside and multiple moving grooves on its top surface. A bidirectional lead screw is rotatably connected to the inner cavity of each movable groove. A first motor is fixedly installed on the side of the support seat. The output shaft of the first motor is connected to the end of the bidirectional lead screw. A limit rod is fixedly sleeved in the inner cavity of each movable groove. Moving seats are threaded onto the outer sides of both ends of the bidirectional lead screw. The limit rod and the moving seats are movably sleeved. Connecting column groups are fixedly connected to the top ends of two moving seats. The top ends of the two sets of connecting column groups extend through the moving grooves to the top of the support seat and are fixedly connected to clamping plates. Rubber pads are fixedly connected to the inner sides of the two clamping plates. A fixing mechanism is provided on the top surface of the base plate, and a support mechanism is provided on the base plate.

[0007] As a preferred embodiment of this utility model, the fixing mechanism includes a lifting box rotatably connected to the top surface of the base plate. A one-way lead screw is rotatably connected to the inner cavity of the lifting box. A second motor is fixedly installed on the top surface of the lifting box. The output shaft of the second motor is connected to the top end of the one-way lead screw. A lifting seat is threaded onto the outer side of the one-way lead screw. The end of the lifting seat extends to the outside of the lifting box and has a slot. An electric push rod is fixedly installed on the top and bottom surfaces of one end of the lifting seat. The output ends of the two electric push rods extend into the inner cavity of the slot and are fixedly connected to a clamping block.

[0008] As a preferred embodiment of this utility model, the support mechanism includes a shrinkage groove formed inside the base plate. The inner cavity of the shrinkage groove is slidably connected to two movable seats. The outer sides of the two movable seats are respectively fixedly connected to sliding plates. The ends of the two sets of sliding plates are respectively movably sleeved to both sides of the base plate and fixedly connected to support plates. The top surfaces of the two support plates are respectively fixedly connected to handles.

[0009] In a preferred embodiment of this utility model, an anti-slip pad is fixedly connected to the bottom surface of the base plate, and the bottom surface of the anti-slip pad is in contact with the bottom surface of the support plate.

[0010] As a preferred embodiment of this utility model, mounting holes are provided on the base plate and the anti-slip pad, and a control panel is fixedly mounted on the top surface of the base plate.

[0011] In a preferred embodiment of this utility model, the side of the lifting seat is fitted to the inner wall of the lifting box.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, when replacing the grinding disc on the angle grinder, the angle grinder is placed on the support base. The two clamping plates are driven to move closer to each other through the threaded engagement between the two-way screw and the moving base. The angle grinder is clamped and fixed by the rubber pads on the inner side of the two clamping plates, thus realizing the function of stabilizing the angle grinder. At the same time, it can fix angle grinders of different shapes and sizes.

[0014] (2) In this utility model, when disassembling the angle grinder disc on the angle grinder, the angle grinder disc is placed between two clamping blocks. Two electric push rods are used to drive the two clamping blocks to clamp and fix the angle grinder disc, ensuring that the angle grinder disc will not rotate during disassembly. The angle grinder disc can also be clamped and fixed by the clamping blocks when it is installed. At the same time, the clamping blocks are used to clamp and stabilize the top and bottom surfaces of the angle grinder disc, which is practical. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the lifting box of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the base plate of this utility model;

[0018] Figure 4 This is a top view of the base plate of this utility model;

[0019] Figure 5 This is a cross-sectional schematic diagram of the support base of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Base plate; 2. Support seat; 3. Movable groove; 4. Moving groove; 5. Two-way lead screw; 6. Moving seat; 7. Connecting column assembly; 8. Clamping plate; 9. Rubber pad; 10. Limiting rod; 11. First motor; 12. Fixing mechanism; 13. Supporting mechanism; 14. Lifting box; 15. One-way lead screw; 16. Second motor; 17. Lifting seat; 18. Slot; 19. Electric push rod; 20. Clamping block; 21. Retraction groove; 22. Slide plate; 23. Support plate; 24. Handle; 25. Mounting hole; 26. Control panel; 27. Anti-slip pad; 28. Movable seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-5 An auxiliary device for changing angle grinding discs for an angle grinder includes a base plate 1. A support base 2 is fixedly connected to the top surface of the base plate 1. The support base 2 has a movable groove 3 inside. Multiple moving grooves 4 are opened on the top surface of the support base 2. A bidirectional lead screw 5 is rotatably connected to the inner cavity of the movable groove 3. A first motor 11 is fixedly installed on the side of the support base 2. The output shaft of the first motor 11 is connected to the end of the bidirectional lead screw 5. A limit rod 10 is fixedly sleeved in the inner cavity of the movable groove 3. Moving seats 6 are threadedly sleeved on the outer sides of both ends of the bidirectional lead screw 5. The limit rod 10 and the moving seats 6 are movably sleeved. Connecting column groups 7 are fixedly connected to the top of the two moving seats 6. The tops of the two sets of connecting column groups 7 extend through the moving grooves 4 to the top of the support base 2 and are fixedly connected to clamping plates 8. Rubber pads 9 are fixedly connected to the inner sides of the two clamping plates 8. A fixing mechanism 12 is provided on the top surface of the base plate 1. A support mechanism 13 is provided on the base plate 1.

[0027] In this embodiment, the movable seat 6 is limited by the movable sleeve between the limiting rod 10 and the movable seat 6, so that the movable seat 6 can only move along the axial direction of the bidirectional lead screw 5.

[0028] For details, please refer to Figure 1 and Figure 2 The fixing mechanism 12 includes a lifting box 14 rotatably connected to the top surface of the base plate 1. A one-way screw 15 is rotatably connected to the inner cavity of the lifting box 14. A second motor 16 is fixedly installed on the top surface of the lifting box 14. The output shaft of the second motor 16 is connected to the top end of the one-way screw 15. A lifting seat 17 is threaded onto the outer side of the one-way screw 15. The end of the lifting seat 17 extends to the outside of the lifting box 14 and has a slot 18. Electric push rods 19 are fixedly installed on the top and bottom surfaces of one end of the lifting seat 17. The output ends of the two electric push rods 19 extend into the inner cavity of the slot 18 and are fixedly connected to clamping blocks 20.

[0029] In this embodiment, the lifting box 14 is damped and rotatably connected to the base plate 1, so that the lifting box 14 will not rotate when no additional rotational force is applied to it.

[0030] For details, please refer to Figures 1 to 3 The support mechanism 13 includes a shrinkage groove 21 inside the base plate 1. The inner cavity of the shrinkage groove 21 is slidably connected to two movable seats 28. The outer sides of the two movable seats 28 are respectively fixedly connected to slide plates 22. The ends of the two sets of slide plates 22 are respectively movably sleeved to both sides of the base plate 1 and fixedly connected to support plates 23. The top surfaces of the two support plates 23 are respectively fixedly connected to handles 24.

[0031] In this embodiment, there is damping between the inner wall of the movable seat 28 and the shrinkage groove 21 to ensure the stability of the support plate 23 after it is pulled out, thereby ensuring the effect of the support plate 23 in strengthening the support of the base plate 1.

[0032] For details, please refer to Figure 3 An anti-slip pad 27 is fixedly connected to the bottom surface of the base plate 1, and the bottom surface of the anti-slip pad 27 is in contact with the bottom surface of the support plate 23.

[0033] In this embodiment, the anti-slip pad 27 is used to ensure the stability of the base plate 1.

[0034] For details, please refer to Figure 1 and Figure 3 Mounting holes 25 are provided on the base plate 1 and the anti-slip pad 27, and a control panel 26 is fixedly installed on the top surface of the base plate 1.

[0035] In this embodiment, the device can be fixed by using mounting holes 25 and screws, and the device can be controlled by control panel 26.

[0036] For details, please refer to Figure 2 The side of the lifting seat 17 fits against the inner wall of the lifting box 14.

[0037] In this embodiment, the inner wall of the lifting box 14 is used to limit the lifting seat 17, so that the lifting seat 17 can only move along the axial direction of the one-way lead screw 15.

[0038] Working principle: In use, firstly, the base plate 1 is fixed by the mounting holes 25 and screws. Simultaneously, the support plate 23 can be pulled outwards, using the support plate 23 and sliding plate 22 to reinforce and support the base plate 1. Then, the lifting box 14 is rotated so that the clamping block 20 faces outwards. At this time, the angle grinder with the grinding disc to be replaced is placed on top of the support base 2, with the grinding disc positioned on the side of the lifting box 14. Simultaneously, the first motor 11 is started, driving the bidirectional lead screw 5 to rotate. Through the threaded engagement between the bidirectional lead screw 5 and the two moving seats 6, the two moving seats 6 are moved closer together. The moving seats 6 drive the connecting column assembly 7, clamping plate 8, and rubber pad 9 to move. The rubber pad 9 on the inner side of the two clamping plates 8 clamps and fixes the angle grinder. Then, the second motor 16 is started, driving the unidirectional lead screw 15 to rotate. Through the threaded engagement between the unidirectional lead screw 15 and the lifting seat 17... The lifting seat 17 moves up and down, so that the two clamping blocks 20 at the end of the lifting seat 17 are positioned above and below the angle grinding disc. At this time, the lifting box 14 is rotated to move the two clamping blocks 20 to the top and bottom of the angle grinding disc respectively. Finally, the two electric push rods 19 are activated to move the two clamping blocks 20, using the two clamping blocks 20 to clamp and fix the angle grinding disc, so that the nuts fixing the angle grinding disc on the angle grinder can be removed using the angle grinding disc removal tool. After removal, the clamping blocks 20 and the angle grinding disc are moved upward through the cooperation of the one-way screw 15 and the lifting seat 17, so that the angle grinding disc is detached from the drive shaft of the angle grinder. At this time, the electric push rods 19 are used to move the clamping blocks 20 to release the angle grinding disc, so that a new angle grinding disc can be installed on the drive shaft of the angle grinder. During installation, the clamping blocks 20 can continue to be used to clamp and fix the new angle grinding disc, ensuring that the angle grinding disc will not rotate when the nut is installed.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An auxiliary device for changing angle grinding discs for an angle grinder, comprising a base plate (1), characterized in that: A support base (2) is fixedly connected to the top surface of the base plate (1). The support base (2) has an internal movable groove (3). Multiple movable grooves (4) are opened on the top surface of the support base (2). A bidirectional lead screw (5) is rotatably connected to the inner cavity of the movable groove (3). A first motor (11) is fixedly installed on the side of the support base (2). The output shaft of the first motor (11) is connected to the end of the bidirectional lead screw (5). A limit rod (10) is fixedly sleeved within the inner cavity of the movable groove (3). The two ends of the bidirectional lead screw (5)... The outer sides are threaded with movable seats (6), the limiting rod (10) and the movable seats (6) are movably connected, the top ends of the two movable seats (6) are respectively fixedly connected with connecting column groups (7), the top ends of the two connecting column groups (7) extend through the movable groove (4) to the top of the support seat (2) and are fixedly connected with clamping plates (8), the inner sides of the two clamping plates (8) are respectively fixedly connected with rubber pads (9), the top surface of the base plate (1) is provided with a fixing mechanism (12), and the base plate (1) is provided with a support mechanism (13).

2. The auxiliary device for changing angle grinding discs for an angle grinder according to claim 1, characterized in that: The fixing mechanism (12) includes a lifting box (14) rotatably connected to the top surface of the base plate (1). A one-way screw (15) is rotatably connected to the inner cavity of the lifting box (14). A second motor (16) is fixedly installed on the top surface of the lifting box (14). The output shaft of the second motor (16) is connected to the top end of the one-way screw (15). A lifting seat (17) is threaded onto the outer side of the one-way screw (15). The end of the lifting seat (17) extends to the outside of the lifting box (14) and has a slot (18). An electric push rod (19) is fixedly installed on the top and bottom surfaces of one end of the lifting seat (17). The output ends of the two electric push rods (19) extend into the inner cavity of the slot (18) and are fixedly connected to a clamping block (20).

3. The auxiliary device for changing angle grinding discs for an angle grinder according to claim 1, characterized in that: The support mechanism (13) includes a shrinkage groove (21) inside the base plate (1). The inner cavity of the shrinkage groove (21) is slidably connected to two movable seats (28). The outer sides of the two movable seats (28) are respectively fixedly connected to sliding plates (22). The ends of the two sets of sliding plates (22) are respectively movably sleeved to both sides of the base plate (1) and fixedly connected to support plates (23). The top surfaces of the two support plates (23) are respectively fixedly connected to handles (24).

4. The auxiliary device for changing angle grinding discs for an angle grinder according to claim 3, characterized in that: The bottom surface of the base plate (1) is fixedly connected to an anti-slip pad (27), and the bottom surface of the anti-slip pad (27) is in contact with the bottom surface of the support plate (23).

5. The auxiliary device for changing angle grinding discs for an angle grinder according to claim 4, characterized in that: Mounting holes (25) are provided on the base plate (1) and the anti-slip pad (27), and a control panel (26) is fixedly installed on the top surface of the base plate (1).

6. The auxiliary device for changing angle grinding discs for an angle grinder according to claim 2, characterized in that: The side of the lifting seat (17) is in contact with the inner wall of the lifting box (14).

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