Detachable electric grinder

Abstract

The utility model discloses a detachable electric grinder, and relates to the technical field of electric grinders. The detachable electric grinder comprises a base, wherein the base is supported on the ground; the supporting column is fixedly connected to the top of the base in the vertical direction; the sliding seat is arranged on the supporting column in a sleeving manner, and the sliding seat is connected with the supporting column in a sliding manner; the motor is fixedly connected to the sliding seat, and the output end of the motor penetrates through one side, facing the base, of the sliding seat; the chuck is connected to the output end of the motor, and the chuck is used for being connected with a drill bit or a grinding head; the connecting piece is of a columnar structure, the connecting piece is of a frustum structure with one thick end and one thin end, the thin end of the connecting piece is matched with the insertion hole of the chuck, and the thick end of the connecting piece is detachably and fixedly connected with the output end of the motor; and the lifting mechanism is arranged at the bottom of the sliding seat and used for adjusting the operation height of the sliding seat and the drill bit.

Description

Technical Field

[0001] The utility model relates to the technical field of electric grinders, and particularly relates to a detachable electric grinder. Background Art

[0002] An electric grinder is a kind of electric tool, mainly used for grinding, polishing, drilling, cutting and other operations on materials such as metals, woods, and stones. It is usually driven by a motor, and the rotational motion of the motor is converted into the high-speed rotation or reciprocating motion of the tool head through a transmission system to achieve the processing of workpieces. Due to its characteristics such as simple operation, high efficiency, and wide application range, electric grinders have been widely used in industrial production and daily maintenance.

[0003] Although electric grinders play an important role in industry and daily life, they also have some limitations and problems: Single function: Traditional electric grinders can often only perform one or a few operations, such as drilling, grinding, etc., which limits their application in diverse operation scenarios. Content of the Utility Model

[0004] Therefore, an embodiment of the utility model provides a detachable electric grinder to solve the problems existing in the above technology that the existing electric grinders have a single function and can only perform drilling, grinding and other operations separately.

[0005] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0006] A detachable electric grinder, comprising:

[0007] A base, which is supported on the ground;

[0008] A support column, which is fixedly connected to the top of the base in the vertical direction;

[0009] A sliding seat, which is sleeved on the support column and is slidably connected to the support column;

[0010] A motor, which is fixedly connected to the sliding seat, and the output end of the motor penetrates the sliding seat and faces the side of the base;

[0011] A chuck, which is connected to the output end of the motor and is used for connecting a drill bit or a grinding head;

[0012] A connecting piece, which is a columnar structure with one end thick and the other end thin. The thin end of the connecting piece is adapted to the jack of the chuck, and the thick end of the connecting piece is detachably and fixedly connected to the output end of the motor;

[0013] A lifting mechanism, which is arranged at the bottom of the sliding seat and is used for adjusting the working height of the sliding seat and the drill bit.

[0014] Optionally, a jack adapted to the motor output shaft is provided at the thick-head end of the connecting member, and a first set screw is inserted into the side wall of the connecting member. The first set screw is threadedly connected to the connecting member, and the position of the first set screw corresponds to the position of the motor output shaft.

[0015] Optionally, the thin-head end of the connecting member is in interference fit with the chuck.

[0016] Optionally, the lifting mechanism includes a fixed seat sleeved and fixedly connected to the support column, and the fixed seat is placed below the sliding seat. A guide rod is fixedly connected to the top of the fixed seat. The top of the guide rod penetrates through the sliding seat, and the sliding seat is slidably connected to the guide rod. A spring is sleeved on the sleeve rod. One end of the spring is fixedly connected to the sliding seat, and the other end of the spring is fixedly connected to the fixed seat. A rocker arm mechanism is provided on one side of the fixed seat and the sliding seat. The sliding seat is pressed down by the rocker arm mechanism to slide up and down along the guide rod.

[0017] Optionally, the rocker arm mechanism includes a connecting rod and a rocker. The connecting rod is in an arc structure. One end of the connecting rod is hinged to the fixed seat, one end of the rocker is hinged to the other end of the connecting rod, and the middle of the rocker is hinged to one side of the sliding seat.

[0018] Optionally, the fixed connection between the motor and the sliding seat is a detachable fixed connection.

[0019] Optionally, a collar is coaxially and fixedly connected to the lower end of the motor. An installation groove is provided on the sliding seat, and a through hole for passing through the motor shaft is provided at the bottom of the installation groove. The through hole is smaller than the size of the collar. A positioning screw is provided outside the installation groove. The positioning screw is threadedly connected to the sliding seat. A positioning hole adapted to the positioning rod is provided on the collar. The motor and the sliding seat are fixed by the positioning rod.

[0020] Optionally, a limit block is sleeved on the support column, and the limit block is arranged between the sliding seat and the fixed seat. A jack for inserting a second set screw is provided on the side wall of the limit block, and the second set screw is threadedly connected to the limit block.

[0021] Optionally, a first drive switch is provided on the motor, and the first drive switch is electrically connected to the motor;

[0022] After the first drive switch is pressed, the motor runs, and when the first drive switch is pressed again, the motor stops rotating.

[0023] Optionally, a second drive switch is provided on the motor, and the second drive switch is electrically connected to the motor;

[0024] When the second drive switch is long-pressed, the motor runs, and when the second drive switch is released, the motor stops rotating.

[0025] The utility model has at least the following beneficial effects:

[0026] In the present utility model, a sliding seat driven by a lifting mechanism of a support column slides up and down. The motor on the sliding seat and the chuck fixed through a connecting member move accordingly, adjusting the position of the chuck. The chuck is detachably connected to the connecting member, and corresponding chucks can be replaced according to different working tools such as drill bits and grinding discs, so as to make the electric grinder have diverse functions, which can be replaced according to the working requirements, is convenient to use, and saves time and effort. Description of the Drawings

[0027] In order to more clearly illustrate the prior art and the present utility model, the drawings required for describing the prior art and the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0028] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0029] Figure 1 It is a schematic structural diagram of a first perspective of an embodiment of the present utility model;

[0030] Figure 2 It is a schematic structural diagram of a second perspective of an embodiment of the present utility model;

[0031] Figure 3 It is a schematic structural diagram of the motor disassembly and assembly structure of an embodiment of the present utility model;

[0032] Figure 4 It is a schematic structural diagram of the drill disassembly and assembly structure of an embodiment of the present utility model.

[0033] Description of the Reference Numerals:

[0034] 1. Base; 2. Support column; 3. Sliding seat; 4. Motor; 5. Chuck; 6. Connecting member; 7. Lifting mechanism; 71. Fixed seat; 72. Guide rod; 73. Spring; 74. Rocker arm mechanism; 741. Link; 742. Rocker; 8. First set screw; 9. Collar; 10. Installation groove; 11. Positioning screw; 12. Positioning hole; 13. Limiting block; 14. Second set screw; 15. First drive switch; 16. Second drive switch; 17. Measuring rod; 18. Controller; 19. Third set screw. Detailed Embodiment

[0035] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. Terms such as "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present utility model and the above-mentioned drawings are intended to distinguish the objects being referred to. For a solution with a time sequence process, this way of term expression does not necessarily need to be understood as describing a specific order or sequence. For a solution of a device structure, this way of term expression also does not distinguish the importance level, positional relationship, etc.

[0037] In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units that are clearly listed, but may also include other steps or units that are inherent to these processes, methods, products or devices although not clearly listed, or steps or units added based on further optimized solutions conceived by the present utility model.

[0038] As Figures 1 - 4 shown, a detachable electric grinder disclosed by the present utility model includes:

[0039] A base 1, and the base 1 is supported on the ground;

[0040] A support column 2, and the support column 2 is fixedly connected to the top of the base 1 in the vertical direction;

[0041] A sliding seat 3, and the sliding seat 3 is sleeved on the support column, and the sliding seat 3 is slidably connected to the support column 2;

[0042] A motor 4, and the motor 4 is fixedly connected to the sliding seat 3, and the output end of the motor 4 penetrates through the sliding seat 3 and faces the side of the base 1;

[0043] A chuck 5, and the chuck 5 is connected to the output end of the motor 4, and the chuck 5 is used for connecting a drill bit or a grinding head;

[0044] A connecting member 6, and the connecting member 6 is in a columnar structure, one end of the connecting member 6 is thick and the other end is thin. The thin end of the connecting member 6 is adapted to the jack of the chuck 5, and the thick end of the connecting member 6 is detachably and fixedly connected to the output end of the motor 4;

[0045] A lifting mechanism 7, and the lifting mechanism 7 is arranged at the bottom of the sliding seat 3 for adjusting the working height of the sliding seat 3 and the drill bit.

[0046] The above-mentioned base 1 is used to support the electric grinder at the top. The support column 2 is fixedly installed on the top of the base 1 through a fixing part. The fixing part adopts a standard part, and its specific structure will not be elaborated here. The support column 2 is vertically arranged with the upper surface of the base 1. The sliding seat 3 is sleeved on the support column 2. The sliding seat 3 is of a plate-like structure and is eccentrically sleeved on the support column 2. A motor 4 is arranged at the top of the sliding seat 3. The motor 4 is fixedly installed on the sliding seat 3. A connecting part 6 is arranged at the bottom of the motor 4 to connect the chuck 5. The chuck 5 is a standard part and can be a BJ10 chuck 5, a JT0 chuck 5 or other models. The connecting part 6 is adapted to the jack on it;

[0047] The connecting part 6 is composed of two cylindrical rods with different diameters. One end is a thick head and the other end is a thin head. The thin head end is adapted to the jack on the chuck 5, and the two are fixed by interference fit. The thick head end is connected to the output shaft of the motor 4 and can be disassembled and fixed.

[0048] Furthermore, the specific fixing method between the connecting part 6 and the motor 4 is as follows: a jack adapted to the output shaft of the motor 4 is provided at the thick head end of the connecting part 6. A first set screw 8 is inserted on the side wall of the connecting part 6. The first set screw 8 is threadedly connected to the connecting part 6, and the position of the first set screw 8 corresponds to the position of the output shaft of the motor 4.

[0049] Through the first set screw 8, the friction force between the connecting part 6 and the output shaft of the motor 4 is increased for fixing.

[0050] Furthermore, the lifting mechanism 7 includes a fixed seat 71. The fixed seat 71 is sleeved and fixedly connected to the support column 2, and the fixed seat 71 is placed below the sliding seat 3. A guide rod 72 is fixedly connected to the top of the fixed seat 71. The top of the guide rod 72 penetrates through the sliding seat 3, and the sliding seat 3 is slidably connected to the guide rod 72. A spring 73 is sleeved on the rod. One end of the spring 73 is fixedly connected to the sliding seat 3, and the other end of the spring 73 is fixedly connected to the fixed seat 71. A rocker mechanism 74 is arranged on one side of the fixed seat 71 and the sliding seat 3. By pressing down the sliding seat 3 through the rocker mechanism 74, it slides up and down along the guide rod 72.

[0051] The above-mentioned fixed seat 71 is fixed on the support column 2. The sliding seat 3 slides above the fixed seat 71, and the sliding seat 3 is driven by the rocker mechanism 74 to slide up and down along the guide rod 72 and the support column 2 to adjust the working position of the drill bit;

[0052] In addition, a spring 73 is arranged on the guide rod 72, which can be deformed during the sliding process of the sliding seat 3. After the operation is completed, the sliding seat 3 and the drill bit are reset under the action of the restoring force of the spring 73.

[0053] The rocker arm mechanism 74 includes a connecting rod 741 and a rocker 742. The connecting rod 741 is an arc-shaped structure. One end of the connecting rod 741 is hinged to the fixed seat 71, one end of the rocker 742 is hinged to the other end of the connecting rod 741, and the middle of the rocker 742 is hinged to one side of the sliding seat 3.

[0054] By arranging the connecting rod 741 mechanism, during the process of pressing the rocker 742, the rocker 742 drives the connecting rod 741 to rotate, so that the connecting rod 741 drives the sliding seat 3 to slide downward along the guide rod 72.

[0055] Furthermore, the fixed connection between the motor 4 and the sliding seat 3 is a detachable fixed connection.

[0056] Setting the connection between the motor 4 and the sliding seat 3 as a detachable fixed connection enables the disassembly of the motor 4 and the drill bit for hand-held operation.

[0057] Specifically, a collar 9 is coaxially and fixedly connected to the lower end of the motor 4. An installation groove 10 is formed on the sliding seat 3. A through hole for passing through the shaft of the motor 4 is formed at the bottom of the installation groove 10. The through hole is smaller than the size of the collar 9. A positioning screw 11 is arranged outside the installation groove 10. The positioning screw 11 is threadedly connected to the sliding seat 3. A positioning hole 12 adapted to the positioning rod is formed on the collar 9. The motor 4 and the sliding seat 3 are fixed by the positioning rod.

[0058] A collar 9 is arranged at the lower end of the motor 4, and an installation groove 10 is formed on the sliding seat 3. The installation groove 10 is a blind hole structure. A through hole is formed at the bottom of the installation groove 10. The through hole is slightly smaller than the opening size of the installation groove 10, so that an inwardly protruding edge is formed at the bottom of the installation groove 10 to support the motor 4. A positioning screw 11 is arranged on one side of the sliding seat 3. The positioning screw 11 is threadedly connected to the sliding seat 3. Rotate the positioning screw 11 to move it towards the inner side of the installation groove 10. Place the collar 9 at the bottom of the motor 4 into the installation groove 10. A positioning hole 12 adapted to the positioning screw 11 is formed on the collar 9. Rotate the positioning screw 11 until it is inserted into the positioning hole 12 to fix the motor 4. When disassembling the motor 4, just unscrew the positioning screw 11. At least one positioning screw 11 is provided. In this embodiment, two positioning screws 11 are provided. The two positioning screws 11 are arranged in parallel and are offset from the output shaft of the motor 4 to avoid affecting the operation of the motor 4.

[0059] In another embodiment, a limit block 13 is sleeved on the support column 2, and the limit block 13 is arranged between the sliding seat 3 and the fixed seat 71. A jack is formed on the side wall of the limit block 13 for inserting a second set screw 14. The second set screw 14 is threadedly connected to the limit block 13.

[0060] A limit block 13 is provided on the support column 2 to limit the downward sliding process of the sliding seat 3. A rubber pad is provided on the top of the limit block 13 to protect the contact between the sliding seat 3 and the limit block 13.

[0061] At the same time, a second set screw 14 can be provided on one side of the limit block 13. According to the operation requirements, the position of the limit block 13 can be adjusted to limit the moving stroke of the sliding seat 3 and the drill bit.

[0062] Furthermore, a first drive switch 15 is provided on the motor 4, and the first drive switch is electrically connected to the motor 4.

[0063] After the first drive switch 15 is pressed, the motor 4 operates. When the first drive switch 15 is pressed again, the motor 4 stops rotating.

[0064] A second drive switch 16 is provided on the motor 4, and the second drive switch 16 is electrically connected to the motor 4.

[0065] When the second drive switch 16 is long-pressed, the motor 4 operates. When the second drive switch 16 is released, the motor 4 stops rotating.

[0066] According to the operation requirements, two different drive switches can be set. The specific implementation methods can all adopt the existing technology and will not be elaborated here.

[0067] At the same time, a controller 18 is configured and electrically connected to the motor 4 and the drive switch.

[0068] The above-mentioned controller 18 is equipped with a power supply to supply power to the motor and the controller 18. At the same time, the controller 18 outputs a control signal to the motor, which is controlled by a push-button switch to control the forward and reverse rotation of the motor 4, and there is also a switch for controlling the rotation speed of the motor 4.

[0069] The above-mentioned control of the forward and reverse rotation of the motor 4 and the adjustment of the rotation speed of the motor 4 can all be achieved through the existing technology and will not be elaborated here.

[0070] In another embodiment, a measuring rod 17 is further provided between the sliding seat 3 and the fixed seat 71. The top end of the measuring rod 17 is fixed on the sliding seat 3. A guide hole for the measuring rod 17 to pass through is provided on the fixed seat 71. The lowest end of the measuring rod 17 is the 0 scale. When the sliding seat 3 is in the initial position, the 0 scale corresponds to the upper surface of the fixed seat 71.

[0071] In addition, the fixed connection between the fixed seat 71 and the support column 2 can be set as a detachable fixed connection. A third set screw 19 is provided on the outside of the fixed seat 71 to adjust the height of the fixed seat 71.

[0072] The above several specific embodiments can be combined with each other. For the same or similar concepts or processes, they may not be elaborated in some embodiments.

[0073] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described; these embodiments not explicitly written out should also be considered to be within the scope described in this specification.

[0074] In the foregoing, the present utility model has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be noted that, without departing from the concept of the present utility model, it is obvious that several modifications and improvements can still be made to these specific embodiments, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

1. A detachable electric grinder, characterized in that, Comprising: A base, which is supported on the ground; A support column, which is fixedly connected to the top of the base in the vertical direction; A sliding seat, which is sleeved on the support column and is slidably connected to the support column; A motor, which is fixedly connected to the sliding seat, and the output end of the motor penetrates the sliding seat and faces the base side; A chuck, which is connected to the output end of the motor and is used to connect a drill bit or a grinding head; A connecting piece, which is a columnar structure with one end thick and the other end thin. The thin end of the connecting piece is adapted to the jack of the chuck, and the thick end of the connecting piece is detachably and fixedly connected to the output end of the motor; A lifting mechanism, which is arranged at the bottom of the sliding seat and is used to adjust the working height of the sliding seat and the drill bit.

2. The detachable electric grinder according to claim 1, characterized in that: The thick end of the connecting piece is provided with a jack adapted to the output shaft of the motor. A first set screw is inserted on the side wall of the connecting piece. The first set screw is threadedly connected to the connecting piece, and the position of the first set screw corresponds to the position of the output shaft of the motor.

3. A detachable electric grinder according to claim 1, characterized in that: The thin end of the connecting piece is in interference fit with the chuck.

4. A detachable electric grinder according to claim 1, characterized in that: The lifting mechanism includes a fixed seat, which is sleeved and fixedly connected to the support column, and the fixed seat is placed below the sliding seat. A guide rod is fixedly connected to the top of the fixed seat. The top of the guide rod penetrates the sliding seat, and the sliding seat is slidably connected to the guide rod. A spring is sleeved on the sleeve rod. One end of the spring is fixedly connected to the sliding seat, and the other end of the spring is fixedly connected to the fixed seat. A rocker arm mechanism is arranged on one side of the fixed seat and the sliding seat. The sliding seat is pressed down by the rocker arm mechanism to slide up and down along the guide rod.

5. A detachable electric grinder according to claim 4, characterized in that: The rocker arm mechanism includes a connecting rod and a rocker. The connecting rod is an arc-shaped structure. One end of the connecting rod is hinged to the fixed seat, one end of the rocker is hinged to the other end of the connecting rod, and the middle of the rocker is hinged to one side of the sliding seat.

6. A detachable electric grinder according to claim 1, characterized in that: The fixed connection between the motor and the sliding seat is a detachable fixed connection.

7. A detachable electric grinder according to claim 6, characterized in that: A collar is coaxially and fixedly connected to the lower end of the motor. An installation groove is formed on the sliding seat. A through hole for passing through the motor shaft is formed at the bottom of the installation groove. The through hole is smaller than the size of the collar. A positioning screw is arranged outside the installation groove. The positioning screw is threadedly connected to the sliding seat. A positioning hole adapted to the positioning rod is formed on the collar. The motor and the sliding seat are fixed by the positioning rod.

8. A detachable electric grinder according to claim 1, characterized in that: A limiting block is sleeved on the support column, and the limiting block is arranged between the sliding seat and the fixed seat. A jack is formed on the side wall of the limiting block for inserting a second set screw. The second set screw is threadedly connected to the limiting block.

9. A detachable electric grinding machine according to claim 8, characterized in that: A first drive switch is arranged on the motor. The first drive switch is electrically connected to the motor; After the first drive switch is pressed, the motor runs. When the first drive switch is pressed again, the motor stops rotating.

10. A detachable electric grinder according to claim 1, characterized in that: A second drive switch is arranged on the motor. The second drive switch is electrically connected to the motor; When the second drive switch is long-pressed, the motor runs. When the second drive switch is released, the motor stops rotating.

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