KR102251522B1 - Turning table for molding grinder - Google Patents

Abstract

The present invention relates to a turning table for a molding grinder and, more specifically, to a turning table for a molding grinder, provided with an lifting and lowering block disposed at the turning table to be lifted and lowered, and provided with a lifting and lowering means which lifts the lifting and lowering block to an upper side of the turning table or lowers the lifting and lowering block to maintain the upper surface of the lifting and lowering block at the same level with the upper surface of the turning table, such that a side surface of a workpiece can be fixed at a position lifted to the upper side of the turning table, thereby enhancing convenience in grinding various types of workpieces and enhancing work utilization because various types of workpieces can be held as compared with a turning table with a flat upper surface. To this end, the present invention comprises: a body in which an arrangement space is formed and which is composed of a box body where the upper part of the arrangement space is opened; a table which is disposed at an opened upper part side of the body, in which a holding space is formed, and in which a lifting and lowering block coupling hole dented from the upper surface toward the center and a lifting and lowering adjustment hole connected to the holding space and communicating with the outer circumferential surface are formed; a driving means disposed in the arrangement space and rotating the table; a plurality of fixing magnets provided at mutually spaced positions on the surface of the table to fix the workpiece; the lifting and lowering block disposed to be able to be lifted and lowered in the lifting and lowering coupling hole of the table; and the lifting and lowering means disposed in the holding space of the table to lift and lower the lifting and lowering block.

Description

Turning table for molding grinder

The present invention relates to a rotary table for a molding grinder, and more particularly, an elevating block arranged to be elevating on the rotary table is provided, and the elevating block is raised above the rotary table or the same upper surface as the upper surface of the rotary table is provided. A lifting means for lowering to maintain is provided so that the side of the work can be fixed in a position raised upward of the rotary table, thereby improving the convenience of grinding various types of work, and to improve the convenience of grinding various types of work compared to a rotary table with a flat upper surface. It relates to a rotary table for a molding grinder that can be mounted and has high work utilization.

In general, a grinding machine is a precision machine that cuts and processes the inner or outer circumferential surface of a plane or cylinder of a work piece in small increments by rotating a grinding wheel made by combining very hard and fine grinding particles at high speed.

Among these grinding machines, the molding grinding machine is an essential processing machine for mold processing and manufacturing, which is the basis of the industry, and is a processing machine used in various fields such as ultra-precision processing of semiconductor-related molds and equipment.

A conventional molding grinder is a grinding wheel that is made by combining harder particles than the work piece and rotates at a high speed to sharpen the surface of the work piece little by little, and a number of cutters that cut the work piece are gathered.

And the molding grinder is used to process materials that have high hardness or can be destroyed by a small impact. It is a machine used for processing parts with high dimensional accuracy and good surface roughness, and is mainly used in the finishing process of parts production. It has the advantage of being able to process not only materials with high hardness, such as hardened steel and cemented carbide, but also soft rubber materials, and has the advantage of superior surface roughness and dimensional precision compared to a surface processed with a lathe or milling machine.

However, the conventional molding grinder processes the workpiece only by moving the stage on which the workpiece is mounted and the vertical rotation of the grindstone support, so in the case of eccentric circular machining or a workpiece with steps, there is a problem that the workpiece surface and the floor cannot be processed at the same time. there was.

In addition, the stage is formed in a flat circle and requires a separate mounting means such as a bolt or a jig for mounting the work thereon, and there is a problem in that grinding cannot be performed in the case of a work that cannot be mounted through the mounting means.

Republic of Korea Patent Registration No. 10-0183905 (1998.12.16.) Republic of Korea Patent Registration No. 10-0261404 (2000.04.18.) Republic of Korea Patent Publication No. 10-2013-0061933 (2013.06.12.)

The present invention has been proposed in order to solve the above problems, and a lifting block arranged to be lifted on a rotary table is provided, and the lift block is raised above the rotary table or the same upper surface as the upper surface of the rotary table is maintained. A lifting means for lowering is provided so that the side of the work can be fixed at a position raised upward of the rotary table to improve the convenience of grinding various types of work, and to mount various types of work compared to a rotary table with a flat top surface. The purpose of this is to provide a rotary table for molding grinders with high work utilization.

In order to achieve the above object, the present invention,

A body comprising a housing having an arrangement space formed therein and an upper portion of the arrangement space open;

A table which is rotatably disposed on the opened upper side of the body and has an accommodation space formed therein, a lifting block coupling hole concave from the upper surface toward the center, and a lifting control hole connected to the accommodation space and in communication with the outer circumferential surface;

A driving means disposed in the arrangement space and rotating the table;

A plurality of fixing magnets provided at positions spaced apart from each other on the surface of the table to fix the work;

A lifting block disposed to be able to move up and down in the lifting block coupling hole of the table, and

It is disposed in the receiving space of the table and includes an elevating means for elevating the elevating block.

In addition, the lifting block,

A lifting body disposed to be able to move up and down in the lifting block coupling hole formed on the table,

The fixing magnetic is provided on the upper surface exposed to the outside of the elevator,

The side surface of the lifting body is provided with a side magnetic that is fixed by contacting a part of the work piece when rising from the surface of the table,

The bottom surface of the elevator body is provided with a detachable magnetic that is coupled by magnetic force to the bottom surface of the lifting block coupling hole, and when descending, the position movement is limited by coupling the bottom surface of the lifting block coupling hole by magnetic force. ,

It characterized in that the lower surface of the lifting body is provided with a lifting bar protruding in the longitudinal direction and displaced in height by driving of the lifting means.

In addition, the elevating means,

A moving block disposed to be movable in a horizontal direction in the accommodation space of the table,

An elevation surface formed in a diagonal shape on one surface of the movable block so that the lower end of the elevation bar of the elevation block abuts,

A guide block disposed on one side of the moving block and having a moving hole formed with a spiral on the inner circumferential surface through the horizontal direction,

A screw that extends in the longitudinal direction and has a corresponding spiral formed on the outer circumferential surface that meshes with the spiral of the moving hole and is coupled to the moving hole,

A fixed block formed in the receiving space of the table and rotatably coupled to one end of the screw to maintain the level of the screw,

And a limiting protrusion protruding toward the receiving space from the inner wall forming the receiving space of the table to limit the positional movement of the moving block, a lift control hole in communication with the receiving space, and a cover for opening and closing the lift control hole It is done.

Furthermore, the driving means,

A first gear disposed in the arrangement space of the body,

And a second gear engaged with the first gear and coupled to one end of the table,

The first gear is connected to an adjustment handle exposed to the outside of the body to rotate the table through a rotational force transmitted from the adjustment handle.

In addition, the lifting block,

It is characterized in that it is made of any one of a square or circular side cross-section, or a parallelogram in which a pair of facing sides are inclined at the same angle.

In the present invention made as described above, various types of workpieces can be stably mounted through an elevating block arranged to be elevating on a table, and a plurality of types of workpieces can be polished through a single rotary table, so that the scope of use is wide. , There is an advantage of minimizing the occurrence of defects by limiting the movement of the position of the workpiece mounted during polishing.

In addition, it is possible to precisely adjust the elevation height of the lifting block, thereby minimizing restrictions on the size of the workpiece or the size of the portion to be mounted, thereby improving the convenience of use.

1 is an exemplary view showing a rotary table for a molding polishing machine according to the present invention.
Figure 2 is a cross-sectional side view showing a rotary table for a molding grinding machine according to the present invention.
Figure 3 is an enlarged view showing an enlarged lifting block and the lifting means constituting the present invention.
Figure 4 is a state diagram showing a state in which the lifting block constituting the present invention is raised.
Figure 5 is an exemplary view showing another embodiment of the lifting block constituting the present invention.

Hereinafter, in addition to the above objects, other objects and features of the present invention will be clearly revealed through the description of the embodiments with reference to the accompanying drawings.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

Hereinafter, a preferred embodiment of a rotary table for a molding polishing machine according to the present invention will be described with reference to the accompanying drawings.

First, as shown in Figs. 1 and 2, the rotary table 1 for a molding grinding machine according to the present invention is an enclosure in which an arrangement space 11 is formed and an upper portion of the arrangement space 11 is opened. The body 10 made of, and is rotatably disposed on the opened upper side of the body, the receiving space 22 is formed therein, the lifting block coupling hole 23 concave from the upper surface toward the center, and the receiving space A table 20 connected to 22 and formed with an elevation control hole 24 in communication with an outer circumferential surface, a driving means 30 disposed in the arrangement space 11 and rotating the table 20, and the table A plurality of fixing magnetics 50 are provided at positions spaced apart from each other on the surface of 20 to fix the work, and a lifting block 60 disposed to be able to move up and down in the lifting block coupling hole 23 of the table 20 ) And a lifting means 70 disposed in the receiving space 22 of the table 20 to lift the lifting block 60.

The body 10 has a placement space 11 formed therein, an upper part of which is an opening communicating with the placement space 11, and an adjustment handle 40 to be described later by communicating with the placement space 11 on a side surface. It is made in the form of a housing in which the adjustment hole 12 is inserted.

The material and shape of the body 10 are variously changeable, and are not limited to the illustrated shape, and are made of a metal having high strength, and there is no particular limitation on the metal material.

The table 20 is made in the form of a flat circular plate, and has a predetermined vertical thickness such that an accommodation space 22 is formed therein to arrange an elevating means 70, which will be described later, as shown.

The table 20 is coupled to be rotatable in a horizontal direction from an upper side of the body 10, and is provided with a coupling shaft 21 that extends downward from the bottom surface and is coupled to a driving means 30 to be described later.

In addition, the upper surface of the table 20, that is, the surface exposed to the outside is formed with a lifting block coupling hole 23 into which the lifting block 60, which will be described later, is inserted so as to be able to move up and down.

The lifting block coupling hole 23 is formed in a shape corresponding to the external shape of the lifting block 60, but is concave from the upper surface of the table 20 toward the center inner side.

That is, in Figures 2 to 4, an embodiment consisting of a pair of sides facing the lifting block 60 is a parallelogram having the same inclination angle, and at this time, the lifting block coupling hole 23 is also formed in a parallelogram, and FIG. When the lifting block 60 shown in is formed in a square shape, the lifting block coupling hole 23 is also formed in a square shape.

In addition, an accommodation space 22 in which an elevating means 70 for elevating the elevating block 60 is disposed is formed inside the table 20.

The receiving space 22 is formed inside the table 20 and communicates with the side surface of the table 20 to form an elevation adjustment hole 24, and the elevation adjustment hole 24 is provided in a cover 77 to be described later. Opened and closed by

The driving means 30 is disposed in the arrangement space 11 of the body 10 to rotate the table 20 in a horizontal direction, and the driving means 30 is the body 10 as shown. ), the first gear 32 to which the adjustment handle 40, which will be described later, is coupled, and the coupling shaft 21 of the table 20 engaged with the first gear 32 It includes the second gear 33 combined.

The driving means 30 made as described above is rotated by the rotational force transmitted through the adjustment handle 40 by the first gear 32, and the second gear 33 is disposed at a right angle to the first gear 32 to be engaged. ) Rotates the table 20 in the horizontal direction.

The first gear 32 and the second gear 33 may be made of known bevel gears, and these bevel gears are used in various mechanical devices, and detailed illustrations and descriptions thereof will be omitted.

Meanwhile, in the present invention, in order to rotate the table 20 in the horizontal direction, a driving motor may be provided that directly engages with the second gear 33 and operates by an applied power source and a signal.

At this time, in addition to the embodiment in which the driving motor (not shown in the drawing) is directly engaged with the second gear 33, a driving motor is disposed outside the body 10, and the driving motor includes the first gear 32 and the chain, It may be connected through a power transmission means such as a belt to transmit power.

The adjustment handle 40 is for driving the driving means 30 to rotate the table 20 in a horizontal direction, and a first gear disposed outside the body 10 and disposed on the body 10 ( 32) and transmits the rotational force to the first gear.

The fixing magnetics 50 are arranged on the upper surface of the table 20 in a plurality of mutually spaced positions to fix the workpieces disposed on the upper surface of the table through magnetic force, as shown in the drawing. It is concavely arranged on the upper surface of 20) to form the same upper surface as the table upper surface.

Subsequently, the fixing magnetics are formed extending in the longitudinal direction, and a plurality of them are disposed at positions spaced apart from each other, but as shown, a plurality of them are disposed side by side in the same direction at the spaced positions.

There is an advantage of being able to grind a surface other than a surface in direct contact with the fixing magnetic among the workpieces by the fixing magnetic 50 arranged as described above. That is, in the case of fixing with a conventional bolt or jig, the surface in contact with the table and the surface fixed by the bolt or the surface to which the jig is bonded have solved the problem that grinding processing cannot be performed.

In addition, since the workpiece can be placed at any position on the top of the table, it has the advantage of improving convenience before and during grinding, and if the workpiece has a longer width or longer than the separation distance of the fixing magnetic, it can be firmly fixed. It has the advantage of high utilization because it can be used.

Next, the lifting block 60 is disposed so as to be able to be lifted in the lifting block coupling hole 23 of the table 20, and the upper surface is formed at the same height as the upper surface of the table when lowering, so that the work piece is attached to the fixing magnetic. When a plurality of surfaces are fixed according to the shape of the work piece and a plurality of surfaces are to be fixed or the work piece needs to be erected and ground, the work piece through the side magnetic 612 provided in the lift block 60 that is raised by raising the lift block 60 The side of the can be fixed by magnetic force.

The lifting block 60 is a lifting body 61 arranged to be liftable in the lifting block coupling hole 23 formed in the table 20, and the upper surface exposed to the outside of the lifting body 61 for fixing the A magnetic 50 is provided, and a side magnetic 612 is provided on the side of the lifting body 61 to which a part of the work piece abuts and is fixed when rising from the surface of the table 20, and the lifting body 61 A detachable magnetic (613) is provided on the bottom of the lifting block coupling hole (23) by magnetic force, and is coupled by magnetic force to the bottom surface of the lifting block coupling hole (23) when descending. Thus, the positional movement is limited, and a lifting bar 62 is provided on the bottom surface of the lifting body 61 to protrude in the longitudinal direction and displaced in height by driving of the lifting means 70.

The elevating body 61 is made of either a quadrangular or circular lateral cross-section, or a parallelogram in which a pair of opposite sides are inclined at the same angle, and the workpiece is coupled to the exposed side surface and the upper surface while rising from the table through magnetic force.

To this end, the fixing magnetic 50 is provided on the upper surface, and the side magnetic 612 is provided on the side surface.

A plurality of side magnetics 612 may be radially disposed at intervals from each other according to the shape of the lifting body 61 or may be arranged in a ring shape along the side of the lifting body 61.

In addition, the bottom surface of the lifting body 61 is provided with a detachable magnetic 613 that is coupled by magnetic force to the bottom surface of the lifting block coupling hole 23, and in a lowered state, the lifting block coupling hole 23 and the magnetic force In combination, position movement is restricted.

A plurality of the detachable magnetics 613 may be arranged at regular intervals or may be formed in a ring shape concavely arranged on the bottom surface of the lifting body 61.

In addition, the detachable magnetic 613 has a miniaturized size of the detachable magnetic so that it can be spaced apart from the bottom surface of the lifting block coupling hole 23 when the lifting body 61 ascends by the lifting means 70 to be described later. It is desirable to control the strength of the magnetic force by arranging a plurality of them afterwards.

The elevating bar 62 is formed to protrude outward from the bottom of the elevating block 60, and the lower end is formed to have the same inclination angle as the elevating surface 72 formed on the moving block 71 of the elevating means 70 to be described later. Is formed to move upward when the moving block 71 advances.

The lifting block 60 made as described above may be made of any one of a parallelogram with a pair of sides facing each other having the same inclination angle as shown, or a rectangle consisting of four line segments forming a right angle as shown in FIG. The quadrilaterals and squares do not form a gap with the surface of the table during ascending and descending.

In addition, as another embodiment, it is of course not limited to the embodiment shown as a parallelogram or a quadrangular shape, but a hemispherical or triangular protrusion may be formed in the center of the top surface.

As described above, the workpiece can be placed in a position that does not come into contact with a hemispherical shape or a triangle protruding upward because the workpiece can be placed at a position freely through the fixing magnetic formed on the table, and grinding processing can be performed. In the case of a recessed groove or a step-like step in the form of a groove, the lifting block can be raised to stably support the bottom surface of the work piece and the side surface of the groove.

The elevating means 70 is disposed on the table 20 to elevate the elevating block 60, and for this purpose, a movable block 71 disposed to be movable in a horizontal direction in the accommodation space 22 of the table 20 ), the lifting surface 72 which is formed in a diagonal shape on one side of the moving block 71 so that the lower end of the lifting bar 62 of the lifting block 60 abuts, and one side of the moving block 71 A guide block 73 is disposed and a moving hole 731 having a spiral formed on the inner circumferential surface penetrates through the horizontal direction, and a corresponding spiral extending in the longitudinal direction and engaging the spiral of the moving hole 731 on the outer circumferential surface. The screw 74 is formed and coupled to the moving hole 731, and is formed in the receiving space 22 of the table 20, and one end of the screw 74 is rotatably coupled to maintain the level of the screw. The fixed block 75, the limiting protrusion 76 protruding toward the receiving space from the inner wall forming the receiving space 22 of the table to limit the movement of the moving block 71, and the table 20 It includes a cover (77) for opening and closing the lift adjustment hole (24).

The movable block 71 is extended in the longitudinal direction and disposed to be movable in the horizontal direction in the receiving space of the table).

At this time, a lifting surface 72 formed in a diagonal shape is formed on one surface of the moving block 71, and the lifting bar 62 of the lifting block 60 abuts on the lifting surface 72.

Therefore, when the moving block 71 moves in the horizontal direction, the lifting bar 62 in contact with the lifting surface 72 ascends or descends along the lifting surface 72, thereby lifting or descending the lifting body 61.

The guide block 73 and the screw 74 are for moving the moving block 71 in the horizontal direction, and the guide block 73 is provided with a moving hole 731 having a spiral formed on an inner circumferential surface thereof, and the screw 74 ) Is a corresponding spiral meshed with the spiral of the moving hole 731 is formed on the outer circumferential surface.

In addition, one end of the screw 74 in the longitudinal direction is provided with a head that can be rotated by a user using a tool, and the head is disposed in the elevation adjustment hole 24 of the table 20.

The fixing block 75 is provided in the receiving space 22 of the table 20 and one end of the screw 74 is rotatably coupled, preferably one end of the screw 74 to the fixing block 75 A bearing to be inserted is provided.

The limiting protrusion 76 is formed protruding from the inner wall forming the receiving space of the table 20 toward the receiving space to limit the movement of the moving block 71, and the moving block 71 is moved. This is to match the upper surface of the table 20 and the upper surface of the lifting block 60 when lowering the lifting block 60.

The cover 77 opens and closes the lifting control hole 24 formed in the table 20, and after opening the cover 77 to adjust the height of the lifting block 60, it is closed during grinding to prevent foreign substances or cutting oil. Block the inflow of

The present invention made as described above can stably mount various types of workpieces, and when grinding all surfaces of the workpiece, the lifting block is raised or lowered to change the mounting position of the workpiece to improve the convenience of grinding processing, When the area of the floor that can be mounted is small, the lifting block is raised to fix the side of the workpiece, thereby enabling stable mounting.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but this is provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , If a person of ordinary skill in the field to which the present invention belongs, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention is limited to the described embodiments and should not be defined, and all things equivalent or equivalent to the claims as well as the claims to be described later belong to the scope of the present invention. .

1: Rotary table for molding grinder
10: body
11: arrangement space 12: control hole
20: table
21: coupling shaft 22: receiving space
23: lifting block coupling hole 24: lifting control hole
30: drive means
31: first gear 32: second gear
40: adjustment handle
50: fixed magnetic
60: lifting block
61: lifting body 62: lifting bar
612: side magnetic 613: detachable magnetic
70: elevating means
71: moving block 72: elevating surface
73: guide block 74: screw
75: fixed block 76: limiting protrusion
77: cover

Claims (5)

A body 10 formed of a housing having an arrangement space 11 formed therein and an upper portion of the arrangement space 11 opened;
It is rotatably disposed on the opened upper side of the body, and the receiving space 22 is formed therein, and the lifting block coupling hole 23 concave from the upper surface toward the center, and connected to the receiving space 22, and the outer circumferential surface A table 20 in which the lifting adjustment hole 24 is formed in communication with the;
A driving means (30) disposed in the arrangement space (11) and rotating the table (20);
A plurality of fixing magnets 50 provided at positions spaced apart from each other on the surface of the table 20 to fix the work;
The lifting block 60 disposed to be able to move up and down in the lifting block coupling hole 23 of the table 20 and
It is disposed in the receiving space 22 of the table 20 and includes an elevating means 70 for elevating the elevating block 60,
The lifting block 60,
A lifting body 61 disposed to be able to move up and down in the lifting block coupling hole 23 formed in the table 20,
The fixing magnetic 50 is provided on the upper surface exposed to the outside of the lifting body 61,
The side surface of the lifting body 61 is provided with a side magnetic 612 that is fixed by contacting a part of the work piece when it rises from the surface of the table 20,
The bottom of the lifting body 61 is provided with a detachable magnetic 613 coupled with the bottom surface of the lifting block coupling hole 23 by magnetic force, and the bottom of the lifting block coupling hole 23 when descending Due to the combination of the surface and the magnetic force, the position movement is limited,
A rotary table for a molding grinding machine, characterized in that the lower surface of the lifting body 61 is provided with a lifting bar 62 protruding in the longitudinal direction and displaced in height by the driving of the lifting means 70.
delete The method according to claim 1, wherein the elevating means (70),
A moving block 71 disposed to be movable in a horizontal direction in the accommodation space 22 of the table 20,
The lifting surface 72 which is formed in an oblique shape on one side of the moving block 71 so as to abut the lower end of the lifting bar 62 of the lifting block 60,
A guide block 73 disposed on one side of the moving block 71 and having a moving hole 731 formed with a spiral on the inner circumferential surface through the horizontal direction,
A screw 74 that extends in the longitudinal direction and engages with the spiral of the moving hole 731 is formed on the outer circumferential surface and is coupled to the moving hole 731,
A fixed block 75 formed in the receiving space 22 of the table 20 and rotatably coupled to one end of the screw 74 to maintain the level of the screw,
A restriction protrusion 76 protruding toward the receiving space from the inner wall forming the receiving space 22 of the table to limit the movement of the moving block 71;
A rotary table for a molding grinder, characterized in that it comprises a cover (77) for opening and closing the lift adjustment hole (24) of the table (20).
The method according to claim 1 or 3, wherein the driving means (30),
The first gear 32 disposed in the arrangement space 11 of the body 10,
And a second gear 33 engaged with the first gear 32 and coupled to one end of the table 20,
The first gear (32) is connected to the adjustment handle (40) exposed to the outside of the body to rotate the table (20) through the rotational force transmitted from the adjustment handle (40). .
The method of claim 1 or 3, wherein the lifting block 60,
A rotary table for a molding grinding machine, characterized in that the side cross-section is made of any one of a square or circular shape, or a parallelogram in which a pair of opposite sides are inclined at the same angle.

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