Combined grinding wheel convenient for chamfering

Abstract

The utility model relates to the technical field of grinding wheels, in particular to a combined grinding wheel convenient to chamfer. The utility model provides a combined type grinding wheel convenient for chamfering, which comprises a shell, a rotating disc, grinding wheels, motors and supports, the lower side of the shell is rotatably connected with the rotating disc, the three supports are uniformly arranged at the inner bottom of the rotating disc, the motors are connected on the supports in a sliding manner, the motors penetrate through the bottom of the rotating disc, and the grinding wheels are clamped on output shafts of the motors through joints. The three grinding wheels are different in structure and can be replaced and assembled at will, and a controller is installed on the left side of the top of the shell. The three motors and the grinding wheels are arranged on the rotating disc, the corresponding grinding wheels can be rotated to the positions aligned with the electric push rods by rotating the rotating disc, then the grinding wheels are pushed out for use through the electric push rods, in the actual use process, more convenience is achieved, the grinding wheels do not need to be manually disassembled and replaced, the trouble of manual operation is omitted, and the working efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheels, in particular to a combined grinding wheel that is convenient for chamfering. Background Art

[0002] Grinding wheel is a kind of grinding tool, which is suitable for removing corners, welding points, burrs and rough edges on the surface of metal materials, and repairing uneven surfaces. Conventional chamfering grinding wheels use diamond resin grinding wheels to chamfer workpieces. Due to the complex structure of some workpieces, multiple grinding wheels are required to grind different parts. Combined grinding wheels can meet this usage requirement.

[0003] The announcement number is CN220839731U, which is a convenient combined grinding wheel. The combined grinding wheel includes a driving shaft, and the combined grinding wheel is installed on the driving shaft. The combined grinding wheel includes a grinding head and a grinding wheel. The grinding wheel is sleeved on the driving shaft, and the grinding wheel passes through a forming portion and is installed on the outer end of the driving shaft through a threaded structure, and the grinding head presses the grinding wheel onto the driving shaft. The combined grinding wheel is obtained by combining the grinding head and the grinding wheel on the driving shaft to obtain a grinding wheel with both grinding and forming functions. The combined grinding wheel is convenient to use and avoids the trouble and time-consuming and labor-intensive switching of multiple grinding wheels during grinding processing, which affects the work progress. Moreover, the combination of the grinding head and the grinding wheel can also be selected in advance according to the shape of the processed parts, and the appropriate grinding head and grinding wheel are matched to make up for the defects of the single structure and limited functions of a single grinding wheel.

[0004] The above patent still has the following shortcomings: the above patent installs the grinding head and the grinding wheel in combination on the driving shaft, and the grinding head or the grinding wheel can be selectively used. The grinding head or the grinding wheel has different types and structures. The grinding head has flat head grinding head, round head grinding head, angular grinding head and other models, and the grinding wheel has cutting grinding wheel, chamfering and grinding grinding wheel, etc. The above patent can be selectively used on the grinding head and the grinding wheel when in use, but in actual processing operations, the type of grinding wheel required to be used is different according to the processing type and processing position of the workpiece. When replacement is needed, the selected type is limited, and the grinding head and grinding wheel need to be disassembled separately, which is difficult to replace quickly. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model provides a combined grinding wheel that is convenient for chamfering.

[0006] The technical implementation scheme of the utility model is: a combined grinding wheel that is convenient for chamfering, including an outer shell, a rotating disk, a grinding wheel, a motor, a bracket, a controller and an ejection assembly. The rotating disk is rotatably connected to the lower side of the outer shell, and three brackets are evenly installed on the bottom of the rotating disk. The brackets are all slidably connected to the motor, and the motor runs through the bottom of the rotating disk. The grinding wheel is clamped on the motor output shaft through a joint. The three grinding wheels have different structures and can be replaced and assembled at will. A controller is installed on the left side of the top of the outer shell, and the motor is electrically connected to the controller. A ejection assembly is provided on the outer shell.

[0007] Optionally, the ejection assembly includes a return spring, a sliding disk, a support cylinder, an electric push rod, a buffer spring and a pressing block. A support cylinder is fixed on the left side of the top of the shell, the controller is connected to the support cylinder, the electric push rod is installed in the support cylinder, an annular slide groove is opened on the top of the shell, the top of the bracket is connected with a sliding disk, the sliding disk is slidably engaged with the slide groove, a pressing block is slidably connected to the position below the electric push rod in the support cylinder, a buffer spring is connected between the pressing block and the electric push rod, and multiple return springs are connected between the motor and the bracket. The middle part of the sliding disk is a concave structure, the sliding disk is in contact with the pressing block, and the pressing block will press the switch of the electric push rod due to the squeezing of the sliding disk, and the electric push rod is electrically connected to the controller.

[0008] Optionally, a fan and an air duct are also included. The fan is installed in the middle of the shell, and the air duct is connected below the fan. The air duct runs through the rotating disk and is rotatably connected to the rotating disk.

[0009] Optionally, the outer wall at the lower end of the air duct is evenly provided with air outlet holes, the air outlet holes are aligned with the grinding wheel, and the air is blown out to the grinding wheel through the air outlet holes.

[0010] Optionally, an adjusting arm and a mounting plate are also included, wherein the adjusting arm is mounted on the top of the housing, and the mounting plate is mounted on the upper end of the adjusting arm.

[0011] Optionally, rubber blocks are also included, and a plurality of rubber blocks are evenly glued to the outer wall of the rotating disk.

[0012] The utility model has the following advantages: 1. Three motors and grinding wheels are arranged on a rotating disk. By rotating the rotating disk, the corresponding grinding wheel can be rotated to a position aligned with the electric push rod, and then pushed out for use by the electric push rod. In actual use, it is more convenient and there is no need to manually disassemble and replace the grinding wheel, which saves the trouble of manual operation and improves work efficiency.

[0013] 2. A fan and an air duct are arranged on the outer shell, which can blow out air to clean the debris on the surface of the grinding wheel after use to avoid affecting the subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the housing, rotating disk, grinding wheel and other components of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of components such as the motor, the return spring and the rubber block of the utility model.

[0017] Figure 4 It is a partial cross-sectional view of the motor, grinding wheel, fan and other components of the utility model.

[0018] Figure 5 It is a partial cross-sectional view of the electric push rod, the pressing block, the sliding plate and other components of the utility model.

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the air duct, shell and slide groove of the utility model.

[0020] Figure 7 It is a three-dimensional structural schematic diagram of the housing, the adjustment arm and the mounting plate of the utility model.

[0021] The meanings of the reference numerals in the figure are: 1. housing, 2. rotating disk, 201. rubber block, 3. grinding wheel, 4. motor, 5. reset spring, 6. bracket, 601. sliding disk, 7. supporting cylinder, 8. electric push rod, 9. buffer spring, 10. pressing block, 11. slide groove, 12. fan, 13. air duct, 14. adjusting arm, 15. mounting plate, 16. controller. DETAILED DESCRIPTION

[0022] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0023] Embodiment: A combined grinding wheel for chamfering, such as Figure 1-Figure 6 As shown, it includes a shell 1, a rotating disk 2, a grinding wheel 3, a motor 4, a bracket 6, a controller 16 and an ejection assembly. The rotating disk 2 is rotatably connected to the lower side of the shell 1, and three brackets 6 are evenly installed on the bottom of the rotating disk 2. The brackets 6 are all slidably connected to the motors 4. The motor 4 runs through the bottom of the rotating disk 2. The grinding wheels 3 are clamped on the output shafts of the motors 4 through joints. The three grinding wheels 3 have different structures and can be replaced and assembled at will. The controller 16 is installed on the top left side of the shell 1, and the motor 4 is electrically connected to the controller 16. The shell 1 is provided with an ejection assembly.

[0024] like Figure 1 and Figure 3-Figure 6The ejection assembly includes a reset spring 5, a sliding disk 601, a support cylinder 7, an electric push rod 8, a buffer spring 9 and a pressing block 10. A support cylinder 7 is fixed on the left side of the top of the shell 1, and the controller 16 is connected to the support cylinder 7. The electric push rod 8 is installed in the support cylinder 7. An annular slide groove 11 is opened at the top of the shell 1. The top of the bracket 6 is connected with a sliding disk 601, and the sliding disk 601 is slidably engaged with the slide groove 11. The position below the electric push rod 8 in the support cylinder 7 is slidably connected with the pressing block 10, and a buffer spring 9 is connected between the pressing block 10 and the electric push rod 8. A plurality of reset springs 5 ​​are connected between the motor 4 and the bracket 6. The middle part of the sliding disk 601 is a concave structure, and the sliding disk 601 contacts and cooperates with the pressing block 10. The pressing block 10 is squeezed by the sliding disk 601 and presses the switch of the electric push rod 8. The electric push rod 8 is electrically connected to the controller 16.

[0025] like Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7 It also includes a fan 12, an air duct 13, a rubber block 201, an adjusting arm 14 and a mounting plate 15. The fan 12 is installed in the middle of the outer shell 1, and the air duct 13 is connected to the bottom of the fan 12. The air duct 13 passes through the rotating disk 2 and is rotatably connected to the rotating disk 2. The outer wall of the lower end of the air duct 13 is evenly provided with air outlet holes, and the air outlet holes are aligned with the grinding wheel 3. The wind is blown out to the grinding wheel 3 through the air outlet holes, and the debris on the grinding wheel 3 can be cleaned. The adjusting arm 14 is installed on the top of the outer shell 1, and the mounting plate 15 is installed on the upper end of the adjusting arm 14. A plurality of rubber blocks 201 for anti-slip are evenly glued to the outer wall of the rotating disk 2.

[0026] When using the device, the device can be installed on the equipment through the mounting plate 15, the adjusting arm 14 can control the direction of the housing 1 and the rotating disk 2. When using the grinding wheel 3, the part of the grinding wheel 3 that can be used in the workpiece can be installed on the output shaft of the motor 4 through the joint. When in specific use, the grinding wheel 3 to be used can be selected according to needs, and the rotating disk 2 is rotated to drive the bracket 6, the motor 4, the grinding wheel 3 and the sliding disk 601 to rotate. The sliding disk 601 slides along the slide groove 11. When the sliding disk 601 approaches the pressing block 10, the pressing block 10 will be squeezed to move upward, so that the buffer spring 9 is compressed. When the recessed part on the sliding disk 601 is aligned with the pressing block 10, the pressing block 10 will be stuck on the recessed part of the sliding disk 601. When the pressing block 10 is squeezed by the sliding disk 601, the pressing block 10 will press the switch of the electric push rod 8, and the electric push rod 8 will be started. The telescopic rod of the electric push rod 8 will extend through the pressing block 10 and the sliding disk 601, and then extend downward to push the motor 4 to move downward The return spring 5 is compressed, and the corresponding grinding wheel 3 will also move downward. After the grinding wheel 3 is pushed out, the electric push rod 8 will automatically close, and the staff can operate the controller 16 to start the corresponding motor 4. The output shaft of the motor 4 rotates to drive the grinding wheel 3 to rotate, and the grinding wheel 3 can be used to grind the workpiece. At the end of use, the controller 16 can be operated to turn off the motor 4, and then the corresponding electric push rod 8 telescopic rod is shortened and reset by the controller 16. The electric push rod 8 telescopic rod will no longer block the motor 4, and the motor 4 will drive the corresponding grinding wheel 3 to move upward and reset under the resetting action of the return spring 5. After the telescopic rod of the electric push rod 8 is reset, it will automatically close. Because some debris of the workpiece will inevitably remain on the surface of the grinding wheel 3 during use, the staff can operate the controller 16 to turn on the fan 12, and the fan 12 will blow wind into the air duct 13, and the wind will be blown out to the grinding wheel 3 through the air outlet on the air duct 13, so as to clean the debris on the grinding wheel 3, eliminating the trouble of manual cleaning.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined grinding wheel for chamfering, characterized by: The invention comprises a housing (1), a rotating disk (2), a grinding wheel (3), a motor (4), a bracket (6), a controller (16) and an ejection assembly. The lower side of the housing (1) is rotatably connected to the rotating disk (2). Three brackets (6) are evenly installed on the bottom of the rotating disk (2). The brackets (6) are all slidably connected to the motors (4). The motors (4) pass through the bottom of the rotating disk (2). The output shafts of the motors (4) are all connected to the grinding wheels (3) through joints. The three grinding wheels (3) have different structures and can be replaced and assembled at will. The controller (16) is installed on the left side of the top of the housing (1). The motor (4) is electrically connected to the controller (16). The housing (1) is provided with an ejection assembly.

2. A combined grinding wheel for chamfering according to claim 1, characterized in that: The ejection assembly comprises a reset spring (5), a sliding disk (601), a support cylinder (7), an electric push rod (8), a buffer spring (9) and a pressing block (10); the support cylinder (7) is fixed on the left side of the top of the housing (1); the controller (16) is connected to the support cylinder (7); the electric push rod (8) is installed in the support cylinder (7); an annular slide groove (11) is opened at the top of the housing (1); the top of the bracket (6) is connected to the sliding disk (601); the sliding disk (601) is slidably engaged with the slide groove (11); the support cylinder (7) A pressing block (10) is slidably connected to a position below the electric push rod (8), a buffer spring (9) is connected between the pressing block (10) and the electric push rod (8), a plurality of return springs (5) are connected between the motor (4) and the bracket (6), the middle of the sliding disk (601) is a concave structure, the sliding disk (601) and the pressing block (10) are in contact and fit, the pressing block (10) is squeezed by the sliding disk (601) to press the switch of the electric push rod (8), and the electric push rod (8) is electrically connected to the controller (16).

3. A combined grinding wheel for chamfering according to claim 2, characterized in that: It also includes a fan (12) and an air duct (13). The fan (12) is installed in the middle of the housing (1), and the air duct (13) is connected below the fan (12). The air duct (13) passes through the rotating disk (2) and is rotatably connected to the rotating disk (2).

4. A combined grinding wheel for chamfering according to claim 3, characterized in that: The outer wall of the lower end of the air duct (13) is evenly provided with air outlet holes, the air outlet holes are aligned with the grinding wheel (3), and the air is blown out onto the grinding wheel (3) through the air outlet holes.

5. A combined grinding wheel for chamfering according to claim 4, characterized in that: It also comprises an adjusting arm (14) and a mounting plate (15); the adjusting arm (14) is mounted on the top of the housing (1), and the mounting plate (15) is mounted on the upper end of the adjusting arm (14).

6. A combined grinding wheel for chamfering according to claim 5, characterized in that: It also includes rubber blocks (201), and a plurality of rubber blocks (201) are evenly glued to the outer wall of the rotating disk (2).

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