CN214603744U

CN214603744U - Hand grinding machine that circular arc ground

Info

Publication number: CN214603744U
Application number: CN202120610973.2U
Authority: CN
Inventors: 崔文远
Original assignee: Suzhou Daoshang Machinery Manufacturing Co ltd
Current assignee: Suzhou Daoshang Machinery Manufacturing Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-11-05
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to a hardware processing technology field, and a hand grinding machine that circular arc ground is disclosed, including the base, the upper surface of base is provided with grinding mechanism, the last fixed surface of base is connected with movable base, movable groove has been seted up to movable base's upper surface, and movable inslot internal rotation is connected with places the piece, places the upper end of piece and extends movable groove, and movable base's preceding side surface is provided with the rotation handle, rotates the rear side surface fixedly connected with axis of rotation of handle, and built-in groove has been seted up to movable base's inside, and the axle center of placing the piece is fixed to be cup jointed and is served at the axis of rotation and is located one of movable groove, and built-in inslot is provided with speed limiting mechanism. This hand grinding machine that circular arc ground can grind circular arc workpiece surface, and safety when having ensured the staff operation has reduced the staff to the working strength that circular arc workpiece surface ground, has improved the efficiency when grinding circular arc workpiece surface.

Description

Hand grinding machine that circular arc ground

Technical Field

The utility model relates to a hardware processing technology field especially relates to a hand grinding machine that circular arc ground.

Background

In the machine part course of working, often need polish to the surface of part, in order to improve the smooth finish on part surface, can use hand grinding machine to polish the machine part surface usually, the circular arc work piece also has great market in machine parts market, and then need grind through hand grinding machine to the surface of circular arc work piece, but the grinding base of the hand grinding machine of present majority all is the horizontal direction, thereby when grinding circular arc work piece surface, just need the staff to grind circular arc work piece surface through handheld mode, the safety risk when increasing the staff operation like this, staff's operating pressure has been increased through handheld mode simultaneously, thereby circular arc work piece surface grinding's efficiency has been influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hand grinding machine that circular arc ground possesses the advantage of grinding to circular arc workpiece surface to shake the grinding machine among the solution prior art and grind the above-mentioned technical problem that efficiency is low to the circular arc workpiece.

In order to realize the purpose, the utility model discloses a technical scheme be:

a hand-operated grinding machine for grinding circular arcs comprises a base, a grinding mechanism is arranged on the upper surface of the base, a movable base is fixedly connected with the upper surface of the base, the activity groove has been seted up to the upper surface of movable base, the activity inslot internal rotation is connected with places the piece, the upper end of placing the piece extends the activity groove, the structure of placing the piece sets up to discoid, the preceding side surface of movable base is provided with the rotation handle, the rear side surface fixedly connected with axis of rotation handle, built-in groove has been seted up to the inside of movable base, the rear end of axis of rotation runs through movable base's preceding side surface and built-in groove in proper order and finally extend into the activity inslot, the rear end of axis of rotation rotates to be connected on the rear side inner wall of activity groove, the axis of rotation is connected with movable base's inside rotation, the axle center of placing the piece is fixed to be cup jointed and is served at the one that the axis of rotation lies in the activity groove, the built-in inslot is provided with speed-limiting mechanism.

Preferably, the speed limiting mechanism comprises two supporting rotating blocks, the two supporting rotating blocks are respectively and fixedly connected to the surfaces of the left side and the right side of the built-in groove, the connecting structures on the two supporting rotating blocks are the same and are arranged in a symmetrical mode, the right end of the supporting rotating block is rotatably connected with a movable adjusting plate, the center of the movable adjusting plate is arranged on the supporting rotating blocks, a threaded rod is arranged on the front side surface of the movable base, and the rear end of the threaded rod penetrates through the front side surface of the movable base and finally extends into the built-in groove.

Preferably, the right side fixed surface of activity regulating plate is connected with the butt joint restriction piece, and the structure of butt joint restriction piece sets up to circular-arc, and butt joint restriction piece and axis of rotation are in same horizontal position, and the axis of rotation is located one of built-in inslot and serves the fixed first clutch blocks that has cup jointed, and the right side inner race of butt joint restriction piece fixedly connected with second clutch blocks.

Preferably, the right side fixed surface of activity regulating plate is connected with first control piece, and the rear end fixedly connected with second control piece of threaded rod, the left side fixed surface of activity regulating plate are connected with the spring, and the left end fixed connection of spring is on the left side inner wall in built-in groove, the surface contact of the left end of first control piece and second control piece.

Preferably, the second control block is conical in structure, and the left end of the first control block is hemispherical.

Preferably, the front side surface of the movable base is provided with a thread groove matched with the threaded rod, and the thread groove is communicated with the built-in groove, so that the threaded rod is in threaded connection with the thread groove on the movable base.

The utility model has the advantages that:

1. this hand grinding machine that circular arc ground, the device is through installing the circular arc work piece on the surface of placing the piece, through rotating the turning handle, thereby make and place the piece and drive the circular arc work piece and rotate, accomplish the grinding to circular arc work piece surface like this, and then the safety when having ensured the staff operation, the staff has reduced the working strength to circular arc work piece surface grinding, efficiency when having improved circular arc work piece surface grinding, be provided with speed limiting mechanism in the device simultaneously, and then can place the rotational speed of piece according to the circular arc work piece control of different materials, the effect to circular arc work piece surface grinding has further been increased, the quality of circular arc work piece after the grinding has been ensured.

2. This hand grinding machine that circular arc ground through being provided with first clutch blocks and second clutch blocks, has increased the frictional factor of butt joint limiting block and axis of rotation contact surface between the two like this to improved the frictional force that forms when contacting between butt joint limiting block and the axis of rotation, avoided the condition of rotation can not appear in the axis of rotation like this, ensured the stability of placing the piece when not using.

3. This hand grinding machine that circular arc ground sets up the left end through with first control block into hemispherical, has reduced the frictional force that second control block formed with first control block when rotating like this, avoids appearing the dead risk of mechanical lock, has ensured the smoothness nature of the device during operation.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic right view of the mobile base;

FIG. 3 is a schematic front view of the built-in slot;

FIG. 4 is a schematic top view of the built-in slot;

FIG. 5 is a schematic diagram of a second control block;

FIG. 6 is a schematic view of the mating of the docking restraint block with the second friction block;

reference numerals:

1-base, 2-grinding mechanism, 3-movable base, 4-movable groove, 5-placing block, 6-rotating handle, 7-rotating shaft, 8-built-in groove, 9-first friction block, 10-supporting rotating block, 11-movable adjusting plate, 12-butt joint limiting block, 13-spring, 14-first control block, 15-threaded rod, 16-second control block and 17-second friction block.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Examples

Referring to fig. 1-6, the utility model provides a hand grinding machine for grinding circular arcs, which comprises a base 1, a grinding mechanism 2 is disposed on the upper surface of the base 1, the grinding mechanism 2 is not described in more detail for the existing structure, a movable base 3 is fixedly connected to the upper surface of the base 1, the movable base 3 is located at the front side of the grinding mechanism 2, a movable groove 4 is disposed on the upper surface of the movable base 3, a placing block 5 is rotatably connected to the movable groove 4, the upper end of the placing block 5 extends out of the movable groove 4, the placing block 5 is located under the grinding head of the grinding mechanism 2, the structure of the placing block 5 is disc-shaped, an adsorbing magnet is mounted on the outer surface of the placing block 5, the adsorbing magnet is not described in more detail for the existing structure, so that the arc-shaped metal sheet can be adsorbed by the outer surface of the placing block 5 through the adsorbing magnet, and the arc-shaped metal sheet can be fixed, the preceding side surface of activity base 3 is provided with rotates handle 6, the rear side surface fixedly connected with axis of rotation 7 of rotating handle 6, built-in groove 8 has been seted up to the inside of activity base 3 simultaneously, built-in groove 8 is located the place ahead of activity groove 4, the rear end of axis of rotation 7 runs through the preceding side surface and the built-in groove 8 of activity base 3 in proper order and finally extend into activity groove 4 in, the rear end of axis of rotation 7 rotates and connects on the rear side inner wall of activity groove 4, axis of rotation 7 is connected with the inside rotation of activity base 3, the axle center of placing piece 5 is fixed to be cup jointed and is served at the axis of rotation 7 one that is located activity groove 4, thereby can drive through rotating handle 6 and place piece 5 and rotate.

The inner walls of the left side and the right side of the built-in groove 8 are respectively fixedly connected with two supporting rotating blocks 10, the rotating shaft 7 is positioned between the two supporting rotating blocks 10, the connecting structures on the two supporting rotating blocks 10 are the same and are arranged in a symmetrical mode, the supporting rotating blocks 10 are rotatably connected with a movable adjusting plate 11, the center of the movable adjusting plate 11 is arranged on the supporting rotating blocks 10, the upper end of the movable adjusting plate 11 is fixedly connected with a butt joint limiting block 12 facing the surface of the rotating shaft 7, the structure of the butt joint limiting block 12 is set to be circular arc, the butt joint limiting block 12 and the rotating shaft 7 are positioned at the same horizontal position, a first friction block 9 is fixedly sleeved on one end of the rotating shaft 7 positioned in the built-in groove 8, a second friction block 17 is fixedly connected on the inner ring of the butt joint limiting block 12, the first friction block 9 and the second friction block 17 are both of the existing structures and are not repeated, so that the friction factor of the contact surface between the butt joint limiting block 12 and the rotating shaft 7 is increased, therefore, the friction force formed when the butt joint limiting block 12 is in contact with the rotating shaft 7 is improved, the condition that the rotating shaft 7 cannot rotate is avoided, and the stability of the placing block 5 when the placing block is not used is guaranteed. The joint strength of the first friction block 9 and the second friction block 17 is controlled by the movable adjusting plate 11 to realize the adjustment of the rotating speed of the rotating shaft 7.

A first control block 14 is fixedly connected to the right side surface of the lower end of the movable adjusting plate 11, a threaded rod 15 is arranged on the front side surface of the movable base 3, the rear end of the threaded rod 15 penetrates through the front side surface of the movable base 3 and finally extends into the built-in groove 8, a threaded groove matched with the threaded rod 15 is formed in the front side surface of the movable base 3, the threaded groove is communicated with the built-in groove 8, the threaded rod 15 is in threaded connection with the threaded groove in the movable base 3, a second control block 16 is fixedly connected to the rear end of the threaded rod 15, the second control block 16 is in a conical structure, a spring 13 is fixedly connected to the left side surface of the lower end of the movable adjusting plate 11, the left end of the spring 13 is fixedly connected to the left inner wall of the built-in groove 8, the spring 13 has a certain length, the movable adjusting plate 11 is in an initial state vertical state, and the left end of the first control block 14 is in contact with the outer surface of the second control block 16, meanwhile, the left end of the first control block 14 is hemispherical, so that friction force formed by the second control block 16 and the first control block 14 during rotation is reduced, the risk of mechanical clamping is avoided, and the smoothness of the device during operation is guaranteed.

The working principle is as follows:

when the hand grinding machine for grinding the circular arc is used, the circular arc-shaped metal sheet is installed on the outer surface of the placing block 5, the placing block 5 can adsorb the circular arc-shaped metal sheet through the adsorption magnet, the threaded rod 15 rotates forwards, the threaded rod 15 extends backwards to push the second control block 16 to move backwards, so that the second control block 16 extrudes the first control block 14, the movable adjusting plate 11 rotates clockwise, the spring 13 contracts under the action of extrusion force, the butt joint limiting block 12 moves towards one side close to the rotating shaft 7, the inner ring of the butt joint limiting block 12 is contacted with the outer surface of the rotating shaft 7, the rotating speed of the rotating shaft 7 is reduced, the outer surface of the circular arc-shaped metal sheet is slowly ground, and the grinding effect of the circular arc-shaped metal sheet is guaranteed;

when needs are extremely locking placing piece 5, only need continuously carry out corotation to threaded rod 15 for the pressure grow of contact surface between butt joint restriction piece 12 and the axis of rotation 7, thereby the completion is extremely locking axis of rotation 7, when needs are to placing piece 5 and rotate, only need rotate threaded rod 15 in the opposite direction, reachs according to above-mentioned principle, butt joint restriction piece 12 does not contact with axis of rotation 7 gradually, thereby it can rotate to place piece 5.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a hand grinding machine that circular arc ground, includes base (1), and the upper surface of base (1) is provided with grinds mechanism (2), and the last fixed surface of base (1) is connected with movable base (3), its characterized in that: the upper surface of the movable base (3) is provided with a movable groove (4), the movable groove (4) is rotationally connected with a placing block (5), the upper end of the placing block (5) extends out of the movable groove (4), the placing block (5) is of a disc-shaped structure, the front side surface of the movable base (3) is provided with a rotating handle (6), the rear side surface of the rotating handle (6) is fixedly connected with a rotating shaft (7), the movable base (3) is internally provided with a built-in groove (8), the rear end of the rotating shaft (7) sequentially penetrates through the front side surface of the movable base (3) and the built-in groove (8) and finally extends into the movable groove (4), the rear end of the rotating shaft (7) is rotationally connected to the inner wall of the rear side of the movable groove (4), the rotating shaft (7) is rotationally connected with the inside of the movable base (3), the axis of the placing block (5) is fixedly sleeved at one end of the rotating shaft (7) which is positioned in the movable groove (4), a speed limiting mechanism is arranged in the built-in groove (8).

2. The hand-operated grinding machine for grinding circular arcs according to claim 1, characterized in that: the speed limiting mechanism comprises two supporting rotating blocks (10), the two supporting rotating blocks (10) are fixedly connected to the left side surface and the right side surface of the built-in groove (8) respectively, the two supporting rotating blocks (10) are identical in connecting structure and are arranged in a symmetrical mode, a movable adjusting plate (11) is connected to the right end of each supporting rotating block (10) in a rotating mode, the center of each movable adjusting plate (11) is arranged on the corresponding supporting rotating block (10), a threaded rod (15) is arranged on the front side surface of the movable base (3), and the rear end of each threaded rod (15) penetrates through the front side surface of the movable base (3) and finally extends into the built-in groove (8).

3. The hand-operated grinding machine for grinding circular arcs according to claim 2, wherein: the right side surface fixedly connected with butt joint limiting block (12) of activity regulating plate (11), the structure of butt joint limiting block (12) sets up to circular-arc, and butt joint limiting block (12) and axis of rotation (7) are in same horizontal position, and axis of rotation (7) are located one of built-in groove (8) and serve the fixed first clutch blocks (9) that has cup jointed, and fixedly connected with second clutch blocks (17) are circled on the right side inner race of butt joint limiting block (12).

4. The hand-operated grinding machine for grinding circular arcs according to claim 2, wherein: the right side fixed surface of activity regulating plate (11) is connected with first control block (14), the rear end fixedly connected with second control block (16) of threaded rod (15), the left side fixed surface of activity regulating plate (11) is connected with spring (13), the left end fixed connection of spring (13) is on the left side inner wall of built-in groove (8), the surface contact of the left end of first control block (14) and second control block (16).

5. The hand-operated grinding machine for grinding circular arcs according to claim 4, wherein: the structure of the second control block (16) is conical, and the left end of the first control block (14) is hemispherical.

6. The hand-operated grinding machine for grinding circular arcs according to claim 2, wherein: the front side surface of the movable base (3) is provided with a thread groove matched with the threaded rod (15), the thread groove is communicated with the built-in groove (8), and the threaded rod (15) is in threaded connection with the thread groove on the movable base (3).