KR20220051194A - tool cooling mechanism - Google Patents

Abstract

The present invention relates to a cooling mechanism for a tool, comprising a grinding tool (1); A merging plate 3 is installed inside the grinding tool 1, and the merging plate 3 rotates along the grinding tool 1 to suck the external cooling water into the grinding tool 1 to rejoin it, and to merge. After cooling, the cooling water is transported radially toward the inner wall of the grinding tool 1 so that the cooling water flows along the inner wall of the grinding tool 1 toward the grinding surface. This cooling mechanism ensures that even when the grinding tool 1 rotates at a high speed, the cooling water smoothly enters through the water inlet to cool the grinding surface, and the cooling water passes through the grinding tool 1 in the axial direction. It is configured to prevent the occurrence of a phenomenon in which the grinding surface cannot be cooled, and the cooling water dispersed by the rotation of the grinding tool (1) is merged, and then the grinding surface is cooled again. Even when machining by rotating at high speed, cooling for the entire course can be realized.

Description

tool cooling mechanism

The present invention relates to a drill bit tool, and more particularly, to a cooling mechanism of the tool.

Among the grinding tools, a rotary abrasive tool or cutter for performing end face grinding/cutting is often a core drill bit, a cup/dish type grinder, an annular abrasive plate, or the like. A core drill bit, also called a digger drill bit, is a dedicated cutter or abrasive tool that processes from an actual material by an annular cutting method. A cup/dish-type grinder is a consolidation abrasive tool that has a certain strength by consolidating abrasives into an annular working ring by a binder and bonding with a base body. An annular abrasive plate is similar to and matches that of a cup/dish grinder with a large ring width.

The grinding tool needs to be cooled during processing, and in the situation where the equipment using the grinding tool does not have an internal cooling supply structure, the prior art typically installs some water passage holes of various types in the grinding tool base body, and By applying pressure, it enters the inner cavity of the grinding tool through the water passage hole and flows through the cutter blade of the grinding tool to realize cooling of the grinding surface.

The grinding tool further includes a cup-type wheel-like abrasive tool, the working surface of which is an annular cross-section working ring, and during the working process, the workpiece may cover the entire connection port of the grinder or some of the connection ports in different orientations of the grinder, In this case, it is difficult for the coolant to enter the inner cavity of the grinder from the connection port of the grinder, and a simple method is to put in from the incision point of the outer diameter of the grinder to constitute the external cooling mode, but due to the action of centrifugal force, the coolant acts from the outer diameter to the inner diameter. Since it is difficult, the cooling effect is limited, and in particular, the effect of the area close to the inner diameter of the grinder is usually poor. When machining while rotating at high speed, an “airflow barrier” is formed on the inside, outside and end surfaces of the grinder, which greatly affects its external cooling effect. In the past, the following technical measures are used to improve this situation.

Method 1, as shown in FIG. 30, the cup-type grinder 22 according to the first prior art has a plurality of large holes like the water passage hole 2201 shown in FIG. 30 in the cross section of the cup-type grinder (base body). In this way, when the coolant enters at a low rotational speed, water enters the internal cavity of the grinder from a plurality of water passage holes 2201. And, it is possible to solve the technical solution of cooling some coolant in contact with the grinder along the water tank or grinding surface from the inner diameter to the outer diameter under the action of centrifugal force. In this method, some of the coolant entering the internal cavity of the grinder passes through the grinder and waste occurs, and other parts of the water cannot receive the action of centrifugal force all the time, so waste still occurs. In this method, when the grinder rotates at high speed, not only does the cooling water ingress ratio fall, but as some of the cooling water is easily “atomized” in the process of entering the grinder's cavity body, the cooling effect is affected.

Method 2, as shown in FIG. 31, the cup-type grinder 23 according to the second prior art has a relatively large number of small-sized ones, such as the water passage hole 2301 shown in FIG. An inclined hole is opened, one water storage space structure is installed auxiliary, and the cooling water passes through the water storage space and then enters the internal cavity of the grinder through the water passage hole 2301 again, under the action of centrifugal force, Cooling is carried out along the water bath or grinding surface from the inner diameter to the outer diameter. In this method, the circulation area of the hand hole is small, the amount of water entering is limited, and when it rotates at high speed, the entry rate of the cooling water also decreases, and then the cooling effect is limited.

Overall, the present invention was created to solve the deficiencies existing in the prior art, and the technical problem to be solved by the present invention is to provide a cooling mechanism for a tool in a situation where the grinding equipment does not have an internal cooling supply structure. .

The technical solution of the present invention to solve the above technical problem includes a grinding tool as follows; A merging plate is installed inside the grinding tool, and the merging plate rotates along the grinding tool to suck the external coolant into the inside of the grinding tool and rejoin it, and the cooling water after merging is radially applied to the inner wall of the grinding tool. to provide a cooling mechanism of the tool for transporting the coolant toward the grinding surface along the inner wall of the grinding tool.

The present invention ensures that the cooling water can smoothly enter through the water inlet and proceed with cooling of the grinding surface even when the grinding tool rotates at high speed, and the cooling water can pass through the grinding tool in the axial direction to cool the grinding surface. It is configured to prevent the occurrence of disappearance and to cool the grinding surface again after the cooling water dispersed by the rotation of the grinding tool is merged, so that the entire course is cooled even when the grinding tool rotates at high speed achieve technological effects that can realize

On the basis of the above technical solution, the present invention may make the following improvements.

Furthermore, a water inlet used for injecting cooling water into the grinding tool is installed at the top of the grinding tool, and the merging plate is fixed to the inside of the grinding tool and corresponds to a position below the water inlet. .

Furthermore, it further includes a plurality of blades, which are distributed on the confluent plate to form a vortex for sucking external coolant into the inside of the grinding tool as the grinding tool is rotated.

In the case of using the above-mentioned advanced method, the blade achieves the technical effect of forming a vortex that sucks the cooling water from the water inlet under the rotation of the grinding tool.

Further, the blades are distributed one turn around the apex of the confluence plate.

Furthermore, it further comprises a fixing screw for fixing the blade and the merging plate to the corresponding position inside the grinding tool, the fixing screw is installed to correspond to the blade one by one;

The fixing screw passes sequentially from the upper side to the lower side through the side wall around the water inlet corresponding to the top of the grinding tool, the corresponding blade and the merging plate.

In the case of using the above-mentioned advanced method, in addition to having a function of sucking water, the blade achieves a technological effect that can be used as a connector for fixing the merging plate to the grinding tool.

Further, the peripheral edge of the merging plate extends outward to a position close to the inner wall of the grinding tool, and between the merging plate and the inner wall of the grinding tool, coolant flows downward along the inner wall of the grinding tool. A flow guide slot is formed so as to limit it.

If the above-mentioned advanced method is used, the effect of the “airflow barrier” is reduced, thereby achieving the technical effect of improving the utilization rate of cooling water.

Further, the merging plate and the water inlet are installed coaxially, the radial size of the merging plate is larger than the radial size of the water inlet, and a side wall around the water inlet corresponding to the top of the grinding tool; A water storage area for temporarily storing cooling water is formed between the merging plates.

If the above-mentioned advanced method is used, a beneficial technical effect is achieved in converging the water in the atomized state and increasing the amount of water ingress.

Furthermore, the blades are installed in a spiral, and the spiral direction of all the blades is the same.

When using the above-mentioned advanced method, the technical effect of improving the adsorption power of sucking the cooling water from the water inlet is achieved.

Furthermore, a connecting structure is installed at the top of the merging plate, and the connecting structure passes through the water inlet in an upward direction along the axial direction of the grinding tool, and then connects the grinding equipment.

In the case of using the above-mentioned advanced method, the technical effect of realizing the connection of the grinding tool and the grinding equipment is achieved.

Furthermore, it further comprises a plurality of blades; An opening section is installed in the middle of the grinding tool, and a facility hole used to connect external equipment is installed at the center point of the bottom surface, the ring section around the grinding tool is the grinding surface, and the merging plate is the grinding surface It is installed inside the opening area of the tool and is detachably connected to the bottom surface of the grinding tool, and the merging plate includes a first plate body and a water entry hole used to allow coolant to enter the grinding tool, The outer edge of the first plate body extends to a point where the side wall and the bottom surface of the grinding tool intersect, and the water entry hole coaxial with the facility hole is installed at the center point of the first plate body, The first plate body is inclined in a direction from the water entry hole to the point where the side wall and the bottom surface of the grinding tool intersect to form an annular inclined surface structure, the outer edge of the first plate body and the side wall of the grinding tool and Slots are left between the bottom surfaces through which the coolant flows; The plurality of blades are positioned between the first plate body and the bottom surface of the grinding tool and are arranged at intervals on the first plate body along the circumferential direction, and the plurality of blades divides a slot into a plurality of confluence passages.

Furthermore, each of the plurality of blades extends radially from the water entry hole to the outer edge of the first plate body and is formed integrally with the first plate body.

Furthermore, all of the extension lines of the plurality of blades form a vortex shape without passing through the centrifugal force of the first plate body.

Furthermore, it further includes an airflow blocking ring, wherein the airflow blocking ring is installed around the outer edge of the surface of the first plate body and is used to isolate the airflow between the airflow blocking ring and the inner wall of the grinding tool to form an airflow isolation passage.

Further, the airflow blocking ring is parallel to the side wall of the grinding tool and extends from the side wall toward the bottom surface.

Further, the airflow blocking ring is inclined toward the bottom surface along the side wall of the grinding tool from the outside to the inside.

Furthermore, it further includes a circular connecting plate, and a connecting hole used to connect an external facility is installed at its center point, the connecting hole and the facility hole are installed coaxially, and the bottom surface of the plurality of blades is A gap is provided, each of the gaps extending outwardly from the inner sidewall of the blade to a position close to the outer sidewall to form a circular groove along the circumferential direction, and the connecting plate is placed inside the circular groove.

Furthermore, it further includes a main shaft screw 13, wherein the main shaft screw passes through the connection hole of the connecting plate and the facility hole of the grinding tool in turn to connect with the main shaft of the external facility with a screw thread.

Furthermore, further comprising a blade connecting screw, a penetrating blade screw hole is installed at a point corresponding to the first plate body and the blade, and a screw groove is installed at a point corresponding to the blade screw hole in the grinding tool, , an inner thread is installed inside the screw groove, and the blade connecting screw passes through the blade screw hole and is connected to the screw groove and the screw thread to integrally connect the grinding tool and the merging plate.

Furthermore, it further comprises a plurality of impellers; The bottom end of the grinding tool opens an opening area, the grinding surface surrounds the outer edge of the bottom end of the grinding tool once, and a connection block is installed at the central point of the top end of the grinding tool, and the connection block is a cylinder A sieve shape is formed, and the top end of the grinding tool surrounds the connection block once to open a ring-shaped punching area, and the plurality of impellers are placed inside the ring-shaped punching area to form an outer edge of the top end of the grinding tool. It is connected across the connecting blocks, and the plurality of impellers are distributed at intervals along the circumferential direction of the connecting blocks;

The merging plate is installed inside the opening area of the grinding tool, and the merging plate includes a connecting column and a second plate body coaxial with the connecting block, and the connecting column has a hollow cylindrical shape with an open lower end. , The upper end of the connecting pole is detachably connected to the bottom surface of the connecting block, the second plate body is installed to surround the periphery of the connecting pole by one turn, and the inner edge of the second plate body is the bottom of the connecting pole It is formed integrally with the outer wall of the stage, and the outer edge of the second plate body extends to the point of the side wall of the grinding tool to form a ring-shaped surface structure, and the outer edge of the second plate body and the side wall and bottom of the grinding tool Slots are left between the faces through which the coolant flows.

Further, the outer edge of the second plate body extends horizontally to the point of the side wall of the grinding tool to form an annular planar shape.

Furthermore, the outer edge of the second plate body extends to a point where the side wall and the bottom surface of the grinding tool intersect, and the second plate body extends from the connecting post to the point where the side wall and the bottom surface of the grinding tool intersect. The direction to is installed to be inclined upward to form an annular inclined surface shape.

Furthermore, the merging plate further includes an airflow blocking ring, and the airflow blocking ring is installed around the outer edge of the second plate body by one turn, and isolates the airflow between the airflow blocking ring and the inner wall of the grinding tool Shape the airflow isolation passage used to

Further, the airflow blocking ring is parallel to the side wall of the grinding tool and extends from the side wall toward the bottom surface.

Further, the airflow blocking ring is inclined from the upper side to the lower side in a direction close to the side wall of the grinding tool.

Furthermore, it further comprises a main shaft connecting screw; A main shaft screw hole configured coaxially at the top end of the connecting block and the center point of the connecting post is installed, and the main shaft connecting screw is connected to the connecting post from the lower side to the upper side. The main shaft screw hole of the connection block is sequentially penetrated and the main shaft of the external equipment is connected with a screw thread to firmly lock the merging plate and the grinding tool to the external equipment.

Further, the grinding tool is a core drill bit, a cup grinder, a plate grinder or an annular abrasive plate.

In the case of using the above-mentioned advanced method, in a situation where the grinding equipment does not have an internal cooling supply structure, a mechanism that converts this external cooling to internal cooling is used for other rotary grinding tools or cutters, so that the technical effect of expanding the range of use accomplish

1 is an overall structural diagram of Example 1;
Fig. 2 is a cross-sectional view of Fig. 1;
3 is a structural diagram of a grinding tool;
4 is a structural diagram of a joining plate;
Fig. 5 is a structural explanatory diagram for the cooling structure of Embodiment 2;
Fig. 6 is a plan sectional view of the cooling structure without a connecting plate in Embodiment 2;
7 is a three-dimensional cross-sectional view of a cooling structure without a connecting plate in Embodiment 2;
Fig. 8 is a plan cross-sectional view of a cooling structure having a connecting plate in Embodiment 2;
Fig. 9 is a three-dimensional cross-sectional view of a cooling structure having a connecting plate in Embodiment 2;
Fig. 10 is a distribution diagram of the blades not passing through the centrifugal force in Example 2;
11 is a bird's-eye view of the blade without passing through the centrifugal force in Example 2;
12 is a bird's eye view of the blade passing the centrifugal in Example 2;
13 is a bird's eye view of the blade of Example 2;
14 is an explanatory diagram for a case in which cooling water flows in the cooling structure in Example 2;
15 is a bird's eye view of the grinding tool of Example 3;
Fig. 16 is an explanatory view of a second plate body of Example 3;
Fig. 17 is an explanatory view of the first second plate body of Example 3;
18 is a cross-sectional view of a first second plate body of Example 3;
Fig. 19 is a cross-sectional view of the case where the first second plate body of Example 3 is positioned in the cup-type grinder;
20 is an explanatory diagram for a case in which the cooling water flows in the first second plate body in the third embodiment;
Fig. 21 is an explanatory view of a second second plate body of Example 3;
22 is a cross-sectional view of a second second plate body of Example 3;
23 is a cross-sectional view illustrating a case in which the second second plate body of Example 3 is positioned in the cup-type grinder;
24 is an explanatory view for a case in which the cooling water flows in the second second plate body in the third embodiment;
Fig. 25 is an explanatory view of the airflow blocking ring of Example 3;
26 is an explanatory diagram for a case in which cooling water flows at an airflow blocking ring point in Example 3;
Fig. 27 is an explanatory view of the blade of Example 3;
Fig. 28 is a structural explanatory diagram of a cup-type grinder and a sorting cover according to the prior art in Embodiment 2;
29 is an explanatory view for a case in which the cooling water according to the prior art flows inside the cup-type grinder according to the prior art in the second embodiment;
Fig. 30 is a structural explanatory diagram of a cup-type grinder according to method 1 of the prior art in Embodiment 3;
Fig. 31 is a structural explanatory view of the cup-type grinder according to the method 2 of the prior art in the third embodiment;
Fig. 32 is a three-dimensional view of a tooth ring in Example 4;
Fig. 33 is a bird's eye view of Fig. 32;
Fig. 34 is a cross-sectional view taken along line AA of Fig. 33;
Fig. 35 is a bird's eye view after mounting the cooling mechanism on the tooth ring;
Fig. 36 is a cross-sectional view taken along line BB of Fig. 35;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the principles and features of the present invention are described in conjunction with the drawings, and the enumerated examples are used only to interpret the present invention and not to limit the scope of the present invention.

Example 1

The grinding tool 1 in this embodiment is a core drill bit.

1 to 3 , the cooling mechanism of the tool includes a grinding tool 1 and a water inlet 2 , the water inlet 2 is placed on the top of the grinding tool 1 and the grinding It is used to inject coolant into the inside of the tool (1). A merging plate 3 is installed inside the grinding tool 1, and the merging plate 3 rotates along the grinding tool 1 to suck external cooling water into the grinding tool 1, and then The merged cooling water is transported radially toward the inner wall of the grinding tool 1 so that the cooling water flows along the inner wall of the grinding tool 1 toward the grinding surface.

As shown in FIG. 4 , the cooling mechanism further includes a blade 4 . The merging plate 3 is fixed to the inside of the grinding tool 1 , that is, a core drill bit, and corresponds to a position below the water inlet 2 . A connection structure 8 is installed at the top of the merging plate 3, and the connection structure 8 penetrates upwardly through the water inlet 2 along the axial direction of the grinding tool 1, The grinding equipment, that is, the main shaft of the drilling machine is connected, and the rotation of the core drill bit 1 is realized under the driving of the drilling machine. A plurality of the blades 4 are installed and distributed on the merging plate 3 to form a vortex as the core drill bit 1 rotates. Preferably, the blade 4 is installed in a spiral, and the spiral direction of all the blades 4 is the same, and when the blade 4 is installed in a spiral, the vortex effect generated after rotation is enhanced, and further , it is possible to improve the adsorption power of sucking the cooling water from the water inlet. In the process of rotating and machining the core drill bit (1) and performing the digger drill, the merging plate (3) and the blade (4) rotate synchronously, and the relative horizontal plane of the blade (4) is It is designed obliquely according to a preset angle, that is, arranged in a spiral, so that after it rotates, it moves the air to form a vortex that acts on the cooling water under the water inlet 2, thereby propulsion of the cooling water. Assist to pass through the airflow barrier at the water inlet (2) point formed by high-speed rotation, and suck the coolant inside the core drill bit (1) (the rotation of the junction plate (3) can still suck the coolant Even when the core drill bit (1) rotates at high speed, the coolant liquid enters through the water inlet (2) smoothly to realize cooling of the grinding surface, and the core drill bit (1) rotates at high speed for machining Even if you do, make sure to ensure cooling for the entire course. In addition, the merging plate 3 blocks the cooling water entering the inside of the grinding tool 1 in the axial direction, and the cooling water passes through the grinding tool 1 in the axial direction, resulting in a phenomenon in which the grinding material cannot be cooled. The cooling water dispersed and atomized by the rotation of the grinding tool is combined. In the present invention, the water inlet (2) can be designed in an annular 360° barrier-free type through the confluence plate (3) and the blade (4), and the outlet of the water outlet pipe for supplying cooling water is ground through the water inlet (2). After penetrating through the tool (1), it can directly enter the inner cavity of the base body to break the airflow barrier at the point of the water inlet (2) and remove it. In the prior art, cooling water is sprayed on the surface of the base body through a method such as drilling a hole in the base body of the grinding tool, and then enters the internal cavity of the base body through the through hole to perform external cooling. Regardless of whether it is installed on the top surface or on the outer circumference, all the outlets of the water outlet pipe supplying the cooling water cannot enter the inner cavity of the base body, because the outlet of the water outlet is This is because, in order for the grinding tool to rotate, the water outlet pipe must also move and rotate with it, which is the concept of an internal cooling structure. The present invention realizes the cooling action of the internal cooling method through the “external cooling” structure.

The way in which the blades 4 are distributed in the merging plate 3 is distributed around the top of the merging plate 3 once as follows. The distribution method corresponding to the blade 4 uses the fixing screw 6 corresponding to the blade 4 one by one to fix the merging plate 3 and the blade 4 to the inside of the core drill bit 1, That is, from the upper side to the lower side of the fixing screw 6, the side wall around the water inlet 2 corresponding to the top of the core drill bit 1, the corresponding blade 4 and the merging plate 3 in turn It is configured to pass through. Therefore, in addition to having a function of sucking water, the blade 4 may be used as a connector for fixing the merging plate 3 to the grinding tool.

The peripheral edge of the merging plate 3 extends outward and extends to a position close to the inner wall of the core drill bit 1 , and furthermore, the merging plate 3 and the inner wall of the core drill bit 1 . A flow guide slot 7 is formed therebetween to limit the cooling water to flow downward along the inner wall of the core drill bit 1 . After the coolant is sucked into the core drill bit (1), it enters the inner cavity of the grinding tool and joins the merging plate (3), and multi-actions such as propulsion and centrifugal force of the blade (4) in the merging plate (3) are performed. As the received cooling water moves upward toward the periphery of the merging plate 3, that is, toward the inner wall of the grinding tool 1, it is easily thrown out of the core drill bit 1 through the water inlet 2 I never do that. Under the action of the flow guide slot 7, the coolant moving to the inner wall of the grinding tool flows downward along the inner wall, and finally, under the action of the pressure, gravity and centrifugal force of the coolant, grinding of the bottom of the core drill bit 1 It is repelled by the surface, acting as an internal cooling method, and increasing the contact area between the cooling water and the core drill bit (1) to improve the utilization rate of the cooling water.

The merging plate 3 and the water inlet 2 are installed coaxially, and the radial size of the merging plate 3 is larger than the radial size of the water inlet 2, and furthermore, the core drill bit A water storage area 5 for temporarily storing cooling water is formed between the side wall around the water inlet 2 corresponding to the top of (1) and the confluence plate 3 . Cooling water sucked in by the blade 4 is temporarily stored inside the water storage area 5, and the water storage area 5 is configured to provide one cavity body for temporarily storing the cooling water, whereby the entered cooling water is stored. As the core drill bit 1 rotates, it is advantageous to avoid backflow from the water inlet 2 again, to join the water in an atomized state, and finally to increase the water ingress amount.

Example 2

28 to 29, the current grinding tool is a cup-type grinder, and a sorting cover is installed among the cup-type grinders. Water is ejected from the inlet, and as the cup-type grinder rotates at high speed, it forms an “airflow barrier” while enclosing the inner and outer walls and end surfaces of the grinder, and he It forms an “airflow barrier weak zone”, but forms a “airflow barrier thickening zone” in the connection port area of the grinder. Of the cooling water sprayed toward the inner wall of the cup-type grinder through the water outlet of the fractionation cover, some of the cooling water is “atomized” as it passes through the “airflow barrier”; Some coolant hits the inner wall of the grinder, is sprayed in all directions, and is dispersed by the impact of the airflow, and under the action of “atomizing” and dispersing by the impact of the “airflow barrier”, some coolant is dispersed and loses its effectiveness, and the coolant is The amount of entering the grinding surface is greatly reduced, resulting in insufficient water supply to the grinding surface, making it impossible to ensure complete cooling during the machining process.

Hereinafter, the cooling mechanism of the present invention will be described in detail. The grinding tool 1 in this embodiment is a cup-type grinder.

5 to 14, the cooling mechanism further includes a plurality of blades 4; An opening section is installed in the middle of the grinding tool (1), and a facility hole (9) used for connecting external equipment is installed at the center point of the bottom surface, and the ring section around the grinding tool (1) is ground surface, and the merging plate 3 is installed inside the opening area of the grinding tool 1 to be detachably connected to the bottom surface of the grinding tool 1, and the merging plate 3 is a first plate body (301) and a water entry hole (10) used to let the coolant enter the inside of the grinding tool (1), and the outer edge of the first plate body (301) is extended so that the grinding tool (1) It extends to the point where the side wall and the bottom surface intersect, and the water entry hole 10 coaxial with the facility hole 9 is installed at the center point of the first plate body 301 , and the first plate body 301 ) is installed obliquely in the direction from the water entry hole 10 to the point where the side wall and the bottom of the grinding tool 1 intersect to form an annular inclined surface structure, and the outer edge of the first plate body 301 . and a slot for circulating cooling water is left between the side wall and the bottom surface of the grinding tool (1); The plurality of blades 4 are positioned between the first plate body 301 and the bottom surface of the grinding tool 1 and arranged at intervals on the first plate body 301 along the circumferential direction, and the plurality of blades (4) divides the slot into a plurality of confluent passages.

As shown in FIG. 6 , it should be understood that the outer edge of the first plate body 301 is closer to the bottom surface of the cup-type grinder than the inner edge.

The gap with the cup-type grinder base constitutes a merging passage, so it is also called a merging work area, and the merging work area contains flowing water and water droplets. It should be understood that the water stream joins to form a water stream, and the water stream becomes a water strip (beam-shaped flow) under the action of centrifugal force, and the water strip refers to water flowing along the inner wall.

In the process of high-speed rotation of the cup-type grinder, the merging plate 3 and the plurality of blades 4 allow the water strip of the supplied coolant to quickly come into close contact with the inner wall of the cup-type grinder, thereby suppressing and accelerating the cooling water inside the cup-type grinder. As it can be realized, it is advantageous not only for the water stream of the coolant to pass through the "airflow barrier" area through the "airflow barrier vulnerable area", but also reduces the cooling water stream from collided with the inner wall and sprayed in all directions, and the airflow blocking ring (11) greatly increases the amount of coolant entering the grinding surface of the cup-type grinder by reducing the influence of the coolant in the airflow isolation passage from the airflow to prevent the coolant from being dispersed and losing effectiveness, ensuring full cooling during the machining process. do.

10 and 13, each of the plurality of blades 4 extends radially from the water entry hole 10 to the outer edge of the first plate body 301 to extend the first It is molded integrally with the plate body 301 .

The blade 4 is installed on the merging plate body, and when the cup-shaped wheel rotates, the blade 4 changes the direction of the coolant and propels the coolant so that it faces the inner wall of the grinder from the point of the water entry hole 10 toward the inner wall. The cooling water propelled to do so can be effectively subjected to the action of centrifugal force, and the cooling water adhering to the inner wall follows the inner wall or continues through the water tank to perform a cooling action on the grinding surface, so that the direction from the inner diameter to the outer diameter of the cup-shaped wheel to ensure complete cooling of the grinding surface.

11 , the extension lines of the plurality of blades 4 all form a vortex shape without passing through the centrifugal force of the first plate body 301 .

In another case, as shown in FIG. 12 , the extension lines of the plurality of blades 4 all pass through the centrifugal force of the first plate body 301 to form an astroid shape. The vortex-shaped blade (4) and the astroid-shaped blade (4) propel the coolant, which breaks down the obstacle of the “airflow barrier” and effectively tightly adheres to the inner wall of the cup-type grinder to improve the effective rate of the coolant It is beneficial to make

As shown in FIG. 8, it further includes an airflow blocking ring 11, wherein the airflow blocking ring 11 is installed around the outer edge of the surface of the first plate body 301 by one turn, and the airflow blocking ring An air flow isolation passage used to isolate an air flow is formed between (11) and the inner wall of the grinding tool 1 (cup-type grinder).

As shown in FIG. 8 , the airflow blocking ring 11 is parallel to the side wall of the grinding tool 1 and extends from the side wall toward the bottom surface.

14, the airflow blocking ring 11 is inclined toward the bottom surface along the side wall of the cup-type grinder from the outside to the inside.

Specifically, the airflow blocking ring 11 may be installed parallel to the inner wall of the cup-type grinder or may be installed inclined.

6 and 14, the airflow blocking ring 11 isolates the “airflow isolation passage (shown in B in FIG. 14)” so that the coolant forms a water strip, and under the action of centrifugal force, the water strip becomes a cup-type grinder By allowing it to move densely on the inner wall of the engine, it is possible to prevent the coolant from dispersing and losing its effectiveness.

As shown in FIGS. 8 to 9, it further includes a circular connecting plate 12, and a connecting hole used to connect external equipment is installed at its center point, and the connecting hole and the equipment hole 9 are installed. is installed coaxially, and a gap is installed on the bottom surface of the plurality of blades 4, and each of the gaps extends outward from the inner sidewall of the blades 4 to a position close to the outer sidewall and extends in the circumferential direction. Accordingly, a circular groove is formed, and the connecting plate 12 is placed inside the circular groove.

The connecting plate 12 strengthens the connection between the cup-type grinder and the merging plate 3 to prevent separation.

Furthermore, it further includes a main shaft screw 13, wherein the main shaft screw 13 passes through the connection hole of the connecting plate 12 and the facility hole 9 of the grinding tool 1 in turn to be external. It is connected to the main shaft 14 of the facility with a screw thread.

Specifically, as shown in Fig. 6, the other connection method does not use the connecting plate 12, the connecting plate 3 is replaced by using a washer, and the main shaft screw 4 is a washer and It passes through the facility hole 9 of the cup-type grinder in turn and is connected to the main shaft 14 of the external facility with a screw thread.

It should be understood that the method using the washer does not provide a gap in the blade 4, and the blade 4 is in close contact with the bottom surface of the cup-type grinder. The connecting plate 12 and the cup-type grinder can be quickly and firmly connected to the main shaft 14 of the external equipment integrally.

It further includes a blade connecting screw 15, a penetrating blade screw hole 16 is installed at a point corresponding to the first plate body 301 and the blade 4, and in the grinding tool 1, the blade A screw groove is installed at a point corresponding to the screw hole 16 , an inner thread is installed inside the screw groove, and the blade connecting screw 15 passes through the blade screw hole 16 to form the screw groove and It is connected with a screw thread to integrally connect the grinding tool (1) and the merging plate (3).

Specifically, in the case of not installing the connecting plate 12 , the connection method is such that the blade 4 is in close contact with the bottom surface of the cup-type grinder and corresponds to the first plate body 301 and the blade 4 . A penetrating screw hole is installed at the point where it becomes, a screw groove is installed at a point corresponding to the blade screw hole in the cup-type grinder, an inner thread is installed inside the screw groove, and the blade connecting screw 15 is a blade screw Through the hole, it is connected to the screw groove with a screw thread to integrally connect the cup-type grinder and the merging plate. A plurality of blade connecting screws 15 are installed, and a plurality of blades 4 among them may be distributed around one wheel.

As can be seen from this, in this embodiment, the blade 4 is not only a member capable of propelling the coolant, but also a member used to connect the cup-type grinder (base body).

Specifically, when the merging plate 3 is installed, the cooling structure further includes a connecting plate connecting screw, and in the connection method, a screw hole is installed in the merging plate 3 , and a screw groove is installed in the blade 4 , , The connecting plate connecting screw penetrates the screw hole of the connecting plate 3 and is connected to the screw groove with a screw thread to integrally connect the connecting plate 3 and the blade 4 . A plurality of connecting screws for the merging plate may be installed, and a plurality of blades 4 among them may be distributed around one wheel.

Specifically, the blade 4 provided with the screw groove is thicker than the blade 4 not provided with the screw groove to prevent the blade 4 having the screw groove from being ruptured.

When the grinder is rotated at high speed, it is possible to prevent separation between each member.

14, the joining plate 3 in the present invention replaces the sorting cover 101 installed in the cup-type grinder according to the prior art, and in the ultra-high speed rotation of the cup-type grinder, the operating state of lifting the grinding surface is It has a greater meaning than the classification cover 101 as follows.

Coolant can be propelled strongly. The blades 4 of the confluence plate 3 have an astroid shape or a vortex shape, and when the coolant is located at the point where the airflow barrier is the weakest, the coolant is strongly propelled to the inner wall of the cup-type grinder so that the coolant adheres to the inner wall. , with the help of centrifugal force as much as possible (the least affected by airflow), it continues to act on the grinding surface along the inner wall or water passage groove.

It can reduce and weaken the effect on the airflow barrier. In the water supply method according to the traditional mode, the effect of the airflow barrier is strongest at the point where the cooling water is located, that is, the cooling water effective rate decreases and the negative effect with the greatest effect occurs; The merging plate 3 solves this obstacle, so that the cooling water can be transferred from the weak airflow barrier area (shown in A in Fig. 14) to the cooling area of the cup-type grinder, and the airflow blocking ring 11 is located in the airflow isolation passage. Prevents the cooling water from being dispersed and losing its effectiveness by reducing the influence of the airflow received by the cooling water and allowing the water in the form of a belt-like flow to adhere to the inner wall and act on the grinding zone from the inside to the outside while being propelled with the help of centrifugal force This makes the cooling action stronger.

It is possible to improve the utilization rate of cooling water. Since the cooling water in the cup-type grinder according to the prior art uses the spray method, the rate at which the cooling water is atomized is higher; However, if a merging passage is formed in the gap between the merging plate 3 and the cup-type grinder to change the flow path of the coolant and form a shape in which the coolant flows in a band shape, the atomization ratio will be lowered to improve the utilization rate of coolant. can

Example 3

The grinding tool further includes a cup-type wheel-like abrasive tool, the working surface of which is an annular cross-section working ring, and during the working process, the workpiece may cover the entire connection port of the grinder or cover a part of the connection port of each different orientation of the grinder; In this case, it is difficult for the coolant to be put into the inner cavity of the grinder from the connection port of the grinder, and a simple way is to put it in from the incision point of the outer diameter of the grinder to constitute the external cooling mode, but due to the action of centrifugal force, the coolant acts from the outer diameter to the inner diameter. Since it is very difficult, the cooling effect is limited, and in particular, the effect of the area close to the inner diameter of the grinder is usually poor. When machining while rotating at high speed, an “airflow barrier” is formed on the inside, outside and end surfaces of the grinder, which greatly affects its external cooling effect. In the past, the following technical measures are used to improve this situation.

Method 1, as shown in FIG. 30, the cup-type grinder 22 according to the first prior art has a plurality of large holes like the water passage hole 2201 shown in FIG. 30 in the cross section of the cup-type grinder (base body). In this way, when the coolant enters at a low rotational speed, water enters the internal cavity of the grinder from a plurality of water passage holes 2201. And, it is possible to solve the technical solution of cooling some coolant in contact with the grinder along the water tank or grinding surface from the inner diameter to the outer diameter under the action of centrifugal force. In this method, some of the coolant entering the internal cavity of the grinder passes through the grinder and waste occurs, and other parts of the water cannot receive the action of centrifugal force all the time, so waste still occurs. In this method, when the grinder rotates at high speed, not only does the cooling water ingress ratio fall, but as some of the cooling water is easily “atomized” in the process of entering the grinder's cavity body, the cooling effect is affected.

Method 2, as shown in FIG. 31, the cup-type grinder 23 according to the second prior art has a relatively large number of small-sized ones, such as the water passage hole 2301 shown in FIG. An inclined hole is opened, one water storage space structure is installed auxiliary, and the cooling water passes through the water storage space and then enters the internal cavity of the grinder through the water passage hole 2301 again, under the action of centrifugal force, Cooling is carried out along the water bath or grinding surface from the inner diameter to the outer diameter. In this method, the circulation area of the hand hole is small, the amount of water entering is limited, and when it rotates at high speed, the entry rate of the cooling water also decreases, and then the cooling effect is limited.

Hereinafter, the cooling mechanism of the present invention will be described in detail. The grinding tool 1 in this embodiment is a cup-type grinder.

15 to 16, the cooling mechanism further includes a plurality of impellers 30; The bottom end of the grinding tool (1) opens an opening area, the grinding surface surrounding the outer edge of the bottom end of the grinding tool (1) is a grinding surface, and a connection block at the center point of the top end of the grinding tool (1) (17) is installed, the connecting block 17 forms a cylindrical shape, and the top end of the grinding tool (1) surrounds the connecting block (17) once to open a ring-shaped punching area (19), , the plurality of impellers 30 are placed inside the annular punching section 19 and are connected across the outer edge of the top end of the grinding tool 1 and the connecting block 17, and the plurality of impellers (30) are distributed at intervals along the circumferential direction of the connecting block (17);

The merging plate 3 is installed inside the opening area of the grinding tool 1 , and the merging plate 3 includes a connecting column 18 and a second plate body 302 coaxial with the connecting block 17 . Including, wherein the connecting post 18 forms a hollow cylindrical body shape with an open lower end, the upper end of the connecting post 18 is detachably connected to the bottom surface of the connecting block 17, the first The second plate body 302 is installed to surround the periphery of the connecting post 18, and the inner edge of the second plate body 302 is integrally formed with the outer wall of the bottom end of the connecting post 18, and the The outer edge of the second plate body 302 extends to the point of the side wall of the grinding tool 1 to form an annular surface structure, and the outer edge of the second plate body 302 and the side wall of the grinding tool 1 and A slot for the cooling water to flow is left between the bottom surfaces.

The cup-type grinder rotates at high speed, and a plurality of impellers 30 generate propulsion to suck the injected coolant into the cavity body of the cup-type grinder, and the merging plate 3 prevents the coolant from passing through the bottom directly. and change the flow path of the coolant that has entered the inner cavity under the action of the confluence plate 3, and the absolute majority of water streams are forced to flow through the inner wall of the cup-type grinder, and under the action of centrifugal force, from the inner diameter to the outer diameter again By cooling along the grinding surface (or water tank) of the cup-type grinder until Conducive to passing through the “airflow barrier” zone, effectively weakening the negative action of the “airflow barrier”, realizing the mode of converting external cooling to internal cooling, and realizing cooling over the entire course of the entire grinding surface do.

17 to 20 , the outer edge of the second plate body 302 extends horizontally to a point on the side wall of the grinding tool 1 to form a flat annular shape.

The second plate body 302 prevents the cooling water from directly passing through the bottom and changes the path of the cooling water to force a large amount of cooling water to flow through the inner wall of the grinder, thereby improving the utilization rate of the cooling water.

21 to 24 , the outer edge of the second plate body 302 extends to a point where the side wall and the bottom surface of the grinding tool 1 intersect, and the second plate body 302 . The direction from the connecting column 18 to the intersection of the side wall and the bottom surface of the grinding tool 1 is installed to be inclined upwardly to form an annular inclined surface shape.

The second plate body 302 having an annular inclined surface shape reduces the amount of coolant spraying in all directions by colliding with the inner wall, and can significantly increase the amount of coolant entering the grinding surface of the cup-type grinder.

25 to 27 , the merging plate 3 further includes an airflow blocking ring 20 , and the airflow blocking ring 20 is located at an outer edge point of the second plate body 302 . It is installed around a wheel and forms an airflow isolation passage used to isolate an airflow between the airflow blocking ring 20 and the inner wall of the grinding tool 1 .

The airflow blocking ring 20 reduces the influence of the airflow received by the cooling water in the airflow isolation passage to prevent the cooling water from being dispersed and losing effectiveness, thereby ensuring overall cooling during the processing process.

Specifically, the airflow blocking ring 20 is parallel to the side wall of the grinding tool 1 and extends from the side wall toward the bottom surface.

Specifically, the airflow blocking ring 20 is inclined in a direction close to the side wall of the grinding tool 1 from the upper side to the lower side.

Specifically, the airflow blocking ring 20 may be installed parallel to the inner wall of the cup-type grinder or may be installed at an angle.

The obliquely installed airflow blocking ring 20 isolates the “airflow isolation passage (shown in B in FIG. 26)” so that the coolant forms a water strip, and under the action of centrifugal force, the water strip moves densely on the inner wall of the cup-type grinder, It can prevent the cooling water from being dispersed and losing its effectiveness.

Installation of the second plate body 302 and the airflow blocking ring 20:

It can reduce and weaken the effect on the airflow barrier. In the water supply method according to the traditional mode, the effect of the airflow barrier is strongest at the point where the cooling water is located, that is, the cooling water effective rate decreases and the negative effect with the greatest effect occurs; The merging plate 3 solves this obstacle, so that the cooling water can be transferred from the weak airflow barrier area (shown in A in Fig. 26) to an area beneficial for cooling the cup-type grinder, and the airflow blocking ring 20 is the airflow isolation passageway. Prevents the cooling water from being dispersed and losing its effectiveness by reducing the influence of the airflow received by the cooling water and allowing the water in the form of a belt-like flow to adhere to the inner wall and act on the grinding zone from the inside to the outside while being propelled with the help of centrifugal force This makes the cooling action stronger.

It is possible to improve the utilization rate of cooling water. Since the cooling water in the cup-type grinder according to the prior art uses the spray method, the rate at which the cooling water is atomized is higher; However, if a merging passage is formed in the gap between the merging plate 3 and the cup-type grinder to change the flow path of the coolant and form a shape in which the coolant flows in a band shape, the atomization ratio will be lowered to improve the utilization rate of coolant. can

27, the main shaft connection screw 21 is further included; a main shaft screw hole configured coaxially is installed at the top end of the connection block 17 and the center point of the connection post 18, The main shaft connecting screw 21 passes through the main shaft screw hole of the connecting post 18 and the connecting block 17 from the lower side to the upper side in turn, and connects to the main shaft of an external facility with a thread to connect the merging plate ( 3) and the grinding tool (1) are tightly locked to the external equipment.

The main shaft connection screw 21 can mount the merging plate 3 and the cup-type grinder together to an external facility.

27, it further includes a plurality of blades 4, wherein the plurality of blades 4 include the second plate body 302 of the merging plate 3 and the grinding tool 1 (cup-type grinder) Located between the top surfaces of the, a plurality of blades 4 are arranged at intervals on the second plate body 302 along the circumferential direction, and the plurality of blades 4 are arranged between the second plate body 302 and the grinding tool 1 ) (cup-type grinder) divides the slot into a plurality of confluence passages.

As a result of the test, the utilization rate at which the single blade 4 sucks the coolant is only 27%, but a state in which a plurality of blades 4 and the second plate body 302 of the merging plate 3 act jointly can reach more than 90%.

The action of the impeller 30 in the third embodiment is mainly to generate a driving force to suck the injected coolant into the cavity body of the cup-type grinder.

The action of the plurality of blades 4 in the third embodiment is mainly to actuate a radial thrust to propel the coolant toward the outer wall of the cup-type grinder.

The overall advantages of the cooling structure in Example 3 are as follows.

1. Since it matches each rotational speed, the rate of cooling water entering the internal cavity of the grinder can be increased as the rotational speed is increased, thereby greatly improving the cooling water utilization rate.

2. Realizing the mode of switching external cooling to internal cooling, realizing cooling for the entire course of the entire grinding surface.

3. Effectively weakens the negative action of the “airflow barrier”.

4. The merging plate is installed at an angle to form an annular inclined surface structure, and the multi-action of centrifugal force and blade and impeller thrust helps the coolant merge into the water strip to break down the effect of the “airflow barrier” by acceleration, and the effective rate of coolant greatly improve

5. Helps to dispose of debris.

6. Because of the coolant entering the internal cavity, the absolute majority are forced to flow through the inner wall of the cup-type grinder, and the cooling effect is greatly improved by cooling from the inner diameter to the outer diameter again along the water tank or grinding surface under the action of centrifugal force. make it

7. Simple and easy to implement.

Specifically, the grinding tool 1 may be a core drill bit, a plate grinder or an annular abrasive plate.

Example 4

The cooling mechanism described in the present invention can likewise be used in a cup-type grinder that splits the cooling water into two branches as described below.

32 to 34, the cup-type grinder includes an annular base 24, a plurality of tooth pieces 25, and a classification structure. The tooth piece 25 is fixed to one side of the base body 24 at intervals along the circumferential direction to form a tooth ring, and one side of the tooth ring far away from the base body 24 is an annular working surface. and the two adjacent tooth pieces 25 are separated to form a water passage groove 26 for transporting cooling water to the working surface. The dividing structure is fixed to the tooth ring and divides the cooling water into two branches, of which the first branch receives the action of the centrifugal force from which the base body 24 rotates through the inside of the water passage groove 26 The cooling water is transported to the area outside the working surface, and the second branch transports the cooling water to the area inside the working surface through the outside of the water passage groove 26 under the action of the centrifugal force rotating the base body 24 . and, in the state obstructed by the workpiece being machined, again conveys cooling water from the inner region of the working surface to the outer region of the working surface. The classification structure includes an outer ring body 27 and an inner ring body 28 . The outer ring body 27 is fixed to the outside of the tooth ring, the inner ring body 28 is fixed to the inside of the tooth ring, in the side wall of the inner ring body 28, the water passage groove ( 26) is provided with a water passage hole 29 for communicating the water passage groove 26, and further, from the water passage hole 29 through the water passage groove 26 The first branch is formed in a region extending outside the working surface, and the second branch is formed in a region extending from the inner sidewall of the inner annular body 28 to the inside of the working surface.

35 and 36, the tooth ring is fixed to the bottom of the cooling mechanism described in the present invention, and the blade 4 in the cooling mechanism follows the rotation of the cup-type grinder and similarly acts as a propelling vortex against the cooling water. By forming , it is possible to assist the propulsion of the cooling water so that it smoothly passes through the airflow barrier at the point of the water inlet (2) formed by high-speed rotation. The sucked cooling water joins the confluence plate 3, and the cooling water subjected to multiple actions, such as propulsion and centrifugal force of the blade 4 at the confluence plate 3, moves downward toward the periphery of the confluence plate 3 and moves the inner wall of the tooth ring. By moving along, the phenomenon of being thrown out of the cup-type grinder through the water inlet 2 does not easily occur. After the cooling water reaches the inner wall of the tooth ring, under the action of centrifugal force generated by the high-speed rotation of the cup-type grinder, the cooling water inside the tooth ring is configured to be blocked by the inner annular body 28, so that all cooling water passes through the water passage groove (26) to prevent entry into the interior. Since the water passage hole 29 is installed in the inner ring body 28, the coolant inside the tooth ring is divided into two branches (shown by an arrow in FIG. 34).

The flow path of the first branch: some coolant enters the inside of the water passage groove 26 from the inside of the tooth ring through the water passage hole 29, and after the coolant enters the inside of the water passage groove 26, he It is blocked by the outer annular body 27 and flows toward the area outside the grinding surface along the axial direction of the tooth ring in a state in close contact with the inner wall of the outer annular body 27, and furthermore, for the area outside the grinding surface proceed with cooling.

Flow path of the second branch: Since the water passage hole 29 serves to limit the flow amount, some coolant is in close contact with the inner wall of the inner annular body 28 and the area inside the grinding surface along the axial direction of the tooth ring , and further, cooling to the area inside the grinding surface, cooling to the area inside the working surface, and then flowing back to the area outside the grinding surface.

The foregoing is only a preferred embodiment of the present invention, and is not used as a limitation on the present invention, and all modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention are within the protection scope of the present invention. will have to be included

1: grinding tool
2: water inlet
3: confluence
4: Blade
5: Water storage area
6: Fixing screw
7: Euro Guide Slot
8: Connection structure
9: Facility Hall
10: water entry hole
11: Airflow shutoff ring
12: connection plate
13: main shaft screw
14: main shaft
15: blade connecting screw
16: blade screw hole
17: connection block
18: connecting column
19: annular punching zone
20: airflow shutoff ring
21: main shaft connecting screw
101: classification cover
301: first plate body
302: second plate body
A: Vulnerable area of airflow barrier
B: Airflow isolation passage
22: first cup-type grinder according to the prior art
23: second cup-type grinder according to the prior art
2201: water passage hole according to method 1 of the prior art
2301: water passage hole according to method 2 of the prior art
24: base body
25: Tooth
26: water passage groove
27: inner ring body
28: outer annulus
29: water passage hole
30: impeller

Claims (27)

In the tool cooling mechanism,
a grinding tool (1);
A merging plate 3 is installed inside the grinding tool 1, and the merging plate 3 rotates along the grinding tool 1 to suck external cooling water into the grinding tool 1, and then Cooling mechanism of a tool, characterized in that the cooling water after merging is transported radially toward the inner wall of the grinding tool (1) so that the cooling water flows along the inner wall of the grinding tool (1) toward the grinding surface. . According to claim 1,
A water inlet 2 used to inject cooling water toward the inside is installed at the top of the grinding tool 1, and the merging plate 3 is fixed to the inside of the grinding tool 1, The cooling mechanism of the tool, characterized in that it corresponds to the location point below the water inlet (2). 3. The method of claim 2,
It further includes a plurality of blades (4), which are distributed on the confluence plate (3) to form a vortex that sucks external coolant into the inside of the grinding tool (1) as the grinding tool (1) is rotated The cooling mechanism of the tool characterized in that it. 4. The method of claim 3,
The tool cooling mechanism, characterized in that the blade (4) is distributed once around the periphery of the top of the merging plate (3). 5. The method of claim 4,
Further comprising a fixing screw (6) for fixing the blade (4) and the joining plate (3) to a corresponding position inside the grinding tool (1), the fixing screw (6) is the blade (4) and install correspondingly;
The fixing screw 6 is sequentially installed from the top to the bottom of the side wall around the water inlet 2 corresponding to the top of the grinding tool 1, the corresponding blade 4 and the merging plate 3 in turn. Cooling mechanism of the tool, characterized in that passing through. 3. The method of claim 2,
The peripheral edge of the merging plate 3 extends outward and extends to a position close to the inner wall of the grinding tool 1, and the cooling water between the merging plate 3 and the inner wall of the grinding tool 1 is the A tool cooling mechanism, characterized in that a flow guide slot (7) is formed to limit flow downward along the inner wall of the grinding tool (1). 3. The method of claim 2,
The merging plate 3 and the water inlet 2 are installed coaxially, the radial size of the merging plate 3 is larger than the radial size of the water inlet 2, and the grinding tool 1 A cooling mechanism for a tool, characterized in that a water storage area (5) for temporarily storing cooling water is formed between the confluence plate (3) and a side wall around the water inlet (2) corresponding to the top. 4. The method of claim 3,
The blade (4) is installed in a spiral, and all the blades (4) have the same spiral direction. 3. The method of claim 2,
After the connection structure 8 is installed at the top of the merging plate 3, the connection structure 8 passes through the water inlet 2 upward along the axial direction of the grinding tool 1 , Cooling mechanism of the tool, characterized in that for connecting the grinding equipment. According to claim 1,
It further comprises a plurality of blades (4);
An opening section is installed in the middle of the grinding tool (1), and a facility hole (9) used for connecting external equipment is installed at the center point of the bottom surface, and the ring section around the grinding tool (1) is ground surface, and the merging plate 3 is installed inside the opening area of the grinding tool 1 to be detachably connected to the bottom surface of the grinding tool 1, and the merging plate 3 is a first plate body (301) and a water entry hole (10) used to let the coolant enter the inside of the grinding tool (1), and the outer edge of the first plate body (301) is extended so that the grinding tool (1) It extends to the point where the side wall and the bottom surface intersect, and the water entry hole 10 coaxial with the facility hole 9 is installed at the center point of the first plate body 301 , and the first plate body 301 ) is installed obliquely in the direction from the water entry hole 10 to the point where the side wall and the bottom of the grinding tool 1 intersect to form an annular inclined surface structure, and the outer edge of the first plate body 301 . and a slot for circulating cooling water is left between the side wall and the bottom surface of the grinding tool (1); The plurality of blades 4 are positioned between the first plate body 301 and the bottom surface of the grinding tool 1 and arranged at intervals on the first plate body 301 along the circumferential direction, and the plurality of blades (4) is a tool cooling mechanism, characterized in that dividing the slot into a plurality of confluence passages. 11. The method of claim 10,
Each of the plurality of blades 4 extends radially from the water entry hole 10 to the outer edge of the first plate body 301 and is formed integrally with the first plate body 301 . tool cooling mechanism. 11. The method of claim 10,
The tool cooling mechanism, characterized in that all of the extension lines of the plurality of blades (4) form a vortex shape without passing through the centrifugal force of the first plate body (301). 11. The method of claim 10,
It further includes an airflow blocking ring 11, wherein the airflow blocking ring 11 is installed around the outer edge of the surface of the first plate body 301 by one turn, and the airflow blocking ring 11 and the grinding tool ( 1) A cooling mechanism for a tool, characterized in that the airflow isolation passage used to isolate the airflow between the inner walls of the tool is formed. 14. The method of claim 13,
The airflow blocking ring (11) is parallel to the side wall of the grinding tool (1) and extends from the side wall toward the bottom surface. 14. The method of claim 13,
The airflow blocking ring (11) is a tool cooling mechanism, characterized in that the inclination toward the bottom surface along the side wall of the grinding tool (1) from the outside to the inside. 11. The method of claim 10,
It further includes a circular connection plate 12, and a connection hole used to connect external equipment is installed at its central point, and the connection hole and the equipment hole 9 are installed coaxially, and the plurality of blades ( A gap is installed on the bottom surface of 4), and each of the gaps extends outwardly from the inner sidewall of the blade 4 to a position close to the outer sidewall to form a circular groove along the circumferential direction, and the connecting plate ( 12) is a tool cooling mechanism, characterized in that it is placed inside the circular groove body. 17. The method of claim 16,
Further comprising a main shaft screw 13, the main shaft screw 13 passes through the connection hole of the connecting plate 12 and the facility hole 9 of the grinding tool 1 in turn to be the main shaft of the external facility. A tool cooling mechanism, characterized in that it is connected to the shaft (14) with a thread. 18. The method according to any one of claims 10 to 17,
It further includes a blade connecting screw 15, a penetrating blade screw hole 16 is installed at a point corresponding to the first plate body 301 and the blade 4, and in the grinding tool 1, the blade A screw groove is installed at a point corresponding to the screw hole 16 , an inner thread is installed inside the screw groove, and the blade connecting screw 15 passes through the blade screw hole 16 to form the screw groove and A tool cooling mechanism, characterized in that it is connected with a screw thread to integrally connect the grinding tool (1) and the merging plate (3). According to claim 1,
It further comprises a plurality of impellers (30); The bottom end of the grinding tool (1) opens an opening area, the grinding surface surrounding the outer edge of the bottom end of the grinding tool (1) is a grinding surface, and a connection block at the center point of the top end of the grinding tool (1) (17) is installed, the connecting block 17 forms a cylindrical shape, and the top end of the grinding tool 1 surrounds the connecting block 17 once to open a ring-shaped punching area 19, and , the plurality of impellers 30 are placed inside the annular punching section 19 and are connected across the outer edge of the top end of the grinding tool 1 and the connecting block 17, and the plurality of impellers (30) are distributed at intervals along the circumferential direction of the connecting block (17);
The merging plate 3 is installed inside the opening area of the grinding tool 1 , and the merging plate 3 includes a connecting column 18 and a second plate body 302 coaxial with the connecting block 17 . Including, wherein the connecting post 18 forms a hollow cylindrical body shape with an open lower end, the upper end of the connecting post 18 is detachably connected to the bottom surface of the connecting block 17, the first The second plate body 302 is installed to surround the periphery of the connecting post 18, and the inner edge of the second plate body 302 is integrally formed with the outer wall of the bottom end of the connecting post 18, and the The outer edge of the second plate body 302 extends to the point of the side wall of the grinding tool 1 to form an annular surface structure, and the outer edge of the second plate body 302 and the side wall of the grinding tool 1 and A tool cooling mechanism, characterized in that a slot for circulating cooling water is left between the bottom surfaces. 20. The method of claim 19,
The tool cooling mechanism, characterized in that the outer edge of the second plate body (302) extends horizontally to the point of the side wall of the grinding tool (1) to form an annular planar shape. 20. The method of claim 19,
The outer edge of the second plate body 302 extends to a point where the side wall and the bottom surface of the grinding tool 1 intersect, and the second plate body 302 extends from the connecting post 18 to the grinding tool ( 1), the direction to the intersection of the side wall and the bottom surface is installed to be inclined upwardly to form an annular inclined surface shape. 22. The method according to any one of claims 19 to 21,
The merging plate 3 further includes an airflow blocking ring 20, and the airflow blocking ring 20 is installed around the outer edge of the second plate body 302 by one turn, and the airflow blocking ring 20 ) and the inner wall of the grinding tool (1) to form an air flow isolation passage used to isolate the air flow. 23. The method of claim 22,
The airflow blocking ring (20) is parallel to the sidewall of the grinding tool (1) and extends from the sidewall toward the bottom. 23. The method of claim 22,
The airflow blocking ring (20) is a tool cooling mechanism, characterized in that from the upper side to the lower side inclined toward the side wall of the grinding tool (1). 20. The method of claim 19,
Further comprising a plurality of blades (4), the plurality of blades (4) is located between the second plate body (302) of the merging plate (3) and the top surface of the grinding tool (1), the plurality of blades (4) ) is arranged at intervals on the second plate body 302 along the circumferential direction, and a plurality of blades 4 divide the slot between the second plate body 302 and the grinding tool 1 into a plurality of confluent passages. The cooling mechanism of the tool characterized in that it. 26. The method according to any one of claims 19 to 21, 23 to 25,
further comprising a main shaft connecting screw 21; A main shaft screw hole configured coaxially is installed at the top end of the connection block 17 and the center point of the connection pillar 18, and the main shaft connection screw 21 extends from the lower side to the upper side with the connection pillar 18 and It is characterized in that the merging plate 3 and the grinding tool 1 are firmly locked to the external equipment by passing through the screw hole of the main shaft of the connection block 17 in turn and connecting with the main shaft of the external equipment with a thread. tool cooling mechanism. 26. The method according to any one of claims 1 to 17, 19 to 25,
The grinding tool (1) is a cooling mechanism for a tool, characterized in that a core drill bit (core drill bit), a cup-type grinder, a plate-type grinder or an annular abrasive plate.

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