KR100712349B1 - Grinding tool having a built-in cleaner - Google Patents

Abstract

The honing tool provided with the grinding wheel mechanism of the grindstone is provided with the cleaning function which can be used even during rotation, and removes a deposit and prolongs the effective use time of a tool.

A sliding hole 65 formed between the tool body and the push rods 70 and 80 in a concentric circular shape with the grinding wheels and the sliding elements 78 and 88 made of a grinding wheel which are hidden in the slit 64 provided in a cylindrical shape. 75) Spiral grooves 67 and 77 are provided in the wall surface, and a strong flow of the cleaning liquid is sent through each of the sliding holes through the grooves through the injection hole 69, and the debris and peeling grindstone particles deposited therein are removed. It is configured to discharge from the open end of the front of the tool.

Description

Grinding tool with cleaning function {GRINDING TOOL HAVING A BUILT-IN CLEANER}

FIG. 1 (A) shows a front view of the tool of Example 1, and FIG. 1 (B) shows a sectional view along the line a-a of FIG. 1 (A), respectively.

FIG. 2 (A) shows a front view of the adjusting rod of Example 1, and FIG. 2 (B) shows a sectional view taken along the line b-b of FIG. 2 (A).

FIG. 3 (A) shows a front view of the tool of Example 2, and FIG. 3 (B) shows a sectional view along the line c-c of FIG. 3 (A), respectively.

FIG. 4 (A) shows a front view of the tool body of Example 2, and FIG. 4 (B) shows a sectional view taken along the line d-d of FIG. 4 (A).

FIG. 5 (A) shows a front view of the tool of Example 3, and FIG. 5 (B) shows a sectional view along the line e-e of FIG. 5 (A), respectively.

FIG. 6 (A) shows a front view of the tool of Example 4, and FIG. 6 (B) shows a sectional view along the line f-f in FIG. 6 (A), respectively.

FIG. 7A shows a front view of the tool of Comparative Example 5, and FIG. 7B shows a sectional view taken along the line g-g of FIG. 7A.

FIG. 8 (A) shows a front view of the tool body of Comparative Example 5, and FIG. 8 (B) shows a sectional view along the line h-h of FIG. 8 (A).                 

FIG. 9 (A) shows a front view of the outer adjustment rod of Comparative Example 5, and FIG. 9 (B) shows a sectional view along the line i-i in FIG. 9 (A).

* Explanation of symbols for main parts of the drawings

1, 21, 41, 51, 61: tool

2, 22, 62: tool body

4, 24, 64: slit

5, 25, 65, 75: sliding hole

6, 26, 66, 91: opening

10, 30, 42, 70, 80: adjusting rod

11, 31, 43, 71, 81: slope

12, 32, 44, 72, 82: slide body

13, 73, 83: pin

14, 34, 74, 84: connecting rod

15: cavity

16: injection hole

17, 29, 69: injection hole

18, 38, 48, 58, 78, 88: slide elements

19, 39, 79, 89: spring

27, 67, 77: home

37: Hook                 

45, 49: Ant cave groove

90 cap

The present invention relates to a grinding tool for honing. When either or both of the two contact surfaces move while maintaining contact, the contact surfaces need to be smoothly finished, and for this purpose a honing with a tool called a honing equipped with a grindstone (hereinafter referred to as a tool). Use a grinding machine called a machine. When the workpiece is small and narrow, the tool is also limited by the small shape and structure.

Although the tool mounted on the spindle of the grinding machine mainly moves in both directions of rotation and up and down with respect to the workpiece, the grinding wheel in the tool is polished as grinding progresses, so it is necessary to maintain accuracy while correcting the contact state between the grinding wheel and the grinding surface. have. Therefore, it is equipped with the adjustment function which makes the grindstone surface with respect to a grinding surface radially in and out by the silver-cursor mechanism built into a tool, and maintains the contact state of both well.

This tool slidably fits an adjustment rod having a slope at the tip and a cylinder provided with a plurality of slits radially, and inserts a slide element in which the grindstone and the grindstone are fixed. The grindstone stand in contact with the tip slope according to the movement of the adjusting rod is a structure that hides the grinding wheel by moving the grinding wheel in the radial direction.The grinding wheel is used to convey the movement of the adjusting rod to the slide element to prevent protruding from the slit. O-rings, garter springs or leaf springs are fitted on both ends as a preventive material.

Although many tools equipped with this prevention material are used, the problem is that deformation and cutting of the prevention material are inevitable, and damage to the prevention material is caused by falling of the slide element or loss of the hiding function. Japanese Patent Laid-Open Nos. 10-249705 and 10-249706 (see Fig. 7), which are the filing applications of the present applicant, disclose a technique relating to a tool that solves this problem. The gist is to prevent the dropping of the slide element by installing and combining the antler-shaped groove on the contact surface of the adjusting rod tip slope and the grindstone stand.

When grinding is started regardless of a tool that prevents O-rings, garter springs, etc., or a tool that prevents ant-curve grooves, the grinding machine can remove crushed grindstone particles by grinding in addition to lubrication and cooling between the abrasive and the grindstone. In order to remove foreign substances such as debris of the workpiece, a circulating system for flowing a large amount of the grinding liquid, recovering and filtering, and reusing it is provided.

During grinding, the cleaning range by the grinding fluid supplied from the surface of the tool itself or from another tool source between the workpiece and the grindstone is limited to the grinding surface and the tool surface. However, since the tool has a mechanism for moving a grindstone composed of a plurality of members therein, and has formed a large number of recesses, end portions, holes, and the like on the inner surface, foreign matters swell with the passage of use time. It will interfere with your movement.

The tool on the grinding surface is rapidly moved in both directions of rotation and up and down, but since the movement between the members constituting the tool itself is very small and there is almost no circumference of the grinding fluid in this area, it is difficult to remove foreign materials gradually. There is a problem in that the slide portion formed by the penetration of the tool body, the sliding hole of the tool body, the adjusting rod and the slide element, is poor, and requires disassembly and maintenance of the tool.

This task has the potential to be further emphasized. Normally, the time required for disassembly and maintenance requires considerable time depending on the level of skill. If the grinding fluid is oil-based, it is separate. If water-soluble, the waiting time from tool stop to disassembly is long. In addition to the original work, the effort to remove the rust is required, it may take several days for decomposition maintenance time.

The present invention provides a tool incorporating a cleaning function using the movement of the tool itself for the purpose of eliminating foreign matters deposited in the grinding tool, which is the above-described problem.

The present invention is slidably inserted into the tool body having a plurality of slits radially penetrating the radial direction of the cylinder and the tool body, and can be operated in the front slit on the slope of the front end of the slide body constituting the adjustment bar The base of the slide element made of the grindstone and the grindstone inserted into the abutment is brought into contact with each other, and the movement of the adjusting rod moves the slide element in the radial direction so as to be concealed from the grindstone and the cylindrical surface.

An injection hole is provided in front of the slide main body or the connecting rod constituting the adjusting rod inserted in the tool body, and through the passage communicating with the slide main body from the injection hole, the injection hole is opened to the surface of the slide body, and the cleaning liquid is injected into the injection hole. It is a grinding tool with a built-in cleaning function, characterized in that the structure is discharged from the opening end of the tool body through the passage, the injection hole and the sliding hole,

A tool body having a plurality of slits that radially penetrate the radial direction of the cylinder, and a plurality of adjusting rods are slidably inserted into the tool body so that the front slits can be slidably inclined on the slope of the front end of the slide body constituting the adjusting rod. The base of the inserted grindstone stand and the grindstone slide element is abutted, and the movement of the adjusting rod moves the slide element radially so that the grindstone is concealed from the cylindrical surface.

The cleaning function is characterized in that the groove is formed in the slide portion of the tool body and at the same time, a passage from the inlet to the groove is drilled so that the cleaning liquid is discharged from the opening of the tool body through the passage and the sliding hole at the inlet. It is a built-in grinding tool

A tool body having a plurality of slits that radially penetrate the radial direction of the cylinder, and a plurality of adjusting rods are slidably inserted into the tool body so that the front slits can be slidably inclined on the slope of the front end of the slide body constituting the adjusting rod. Abutment of the inserted grindstone stand and the slide element of the grindstone is respectively abutted, so that the movement of the adjusting rod moves the slide element in the radial direction so that the grindstone is concealed from the cylindrical surface.

A plurality of grooves are formed in the plurality of sliding holes formed by the tool body and the adjusting rod, and at the same time, a passage from the inlet to the groove is drilled, and the cleaning liquid is passed through the plurality of passages and the plurality of sliding holes at the inlet, and the opening end of the tool body. Grinding tool with a built-in cleaning function characterized in that the structure is discharged from.

(Embodiment)                     

According to the present invention, in order to prevent foreign substances such as exfoliated grindstone particles and debris from being transported and deposited in the grinding liquid, and to prevent the movement of the slide member in the tool, the separation of the filtered grinding liquid ( The present invention relates to a cleaning function for the purpose of preventing and removing foreign matter from infiltrating and depositing in the main part by introducing oil into the sliding hole as a cleaning liquid.

Although the tool is preferably cleaned as it is mounted on the main shaft, it is necessary to take into account the cleaning of the tool removed from the main shaft in addition to the type of cleaning divided by the shape of the main shaft and the operation state of the tool. During rotation, the tool is provided with a groove in the sliding hole wall surface in the tool body, and the cleaning effect is obtained by providing the structure with swing and downward flow to the cleaning liquid. This cleaning function can be used even in the stationary state, but the effect is related to the pressure of the cleaning liquid.

The shape of the groove determines the width in consideration of the number of grindstones and the diameter of the sliding hole, and the depth is selected in the range of 0.1 to 2 mm, preferably 0.5 to 1 mm, and at least one straight line as the spiral. And between the opening ends in the sliding hole wall. If the groove is spiraled, the slide element mounted on the tool crosses the groove, so the cleaning liquid overflows from the groove, flows into the space by the tool body, the adjusting rod and the slide element, and is discharged from the open end of the tool body such as a slit. This builds up and makes it difficult.

The cleaning structure of the tool stopped as mounted on the main shaft uses the slide body that constitutes the adjusting rod in the tool body, and the slide body tip is provided with a plurality of injection holes on the surface of the slide body at the inlet of the rear end of the connecting rod, and the diameter is 1 A range of ˜4 mm and a preferable one are selected within a range of 2 to 3 mm, and a washing solution is added to clean the circumference of the sliding hole. This cleaning function is also applied to the tool removed from the main shaft, but in any case, the effect is related to the pressure of the cleaning liquid. The combination tool which incorporates a rough finish and a finishing grindstone is comprised combining the cleaning structure mentioned above.

The grinding tool according to the present invention communicates by laying passages and grooves or injection holes between the injection hole through the sliding hole and reaching the open end so that the cleaning liquid rotates in the constituent member, thereby preventing or removing foreign matter from infiltration and deposition.

(Example 1)

It is a cleaning structure for a stationary tool mounted on the spindle, but this structure also functions for the tool detached from the spindle. 1 (A, B) is the front and the cross-section of the entire tool, the state where the adjustment rod is retracted into the sliding hole to hide the maximum grinding wheel, Figure 2 (A, B) is the front of the adjustment rod unit pulled out in the tool body And state of the cross section are displayed respectively.

Fig. 1 (A) shows a tool 1 in which a wear resistant material 3, such as super steel, for protecting the outer periphery of the tool body 2, and a slit 4 into which a slide element 18 made of a grindstone and a grindstone are inserted. 1 (B) shows the developed cross section of the tool along the aa line in FIG. 1 (A), respectively.

A slide body 12 having two slopes 11 and an adjusting rod 10 made of a connecting rod 14 are inserted into the sliding hole 5, and the spring 19 is sealed in the gap between the connecting rod and the rear of the tool body. Structure.

When the slide main body 12 moves, the slit 4 contacts the tip slope 11 so that the bottom of the slide element 18 is raised and lowered, and the grindstone is hidden from the workpiece (not shown). As a preventive material for preventing the fall of the slide element 18, a pin 13 is attached to the slide main body 12 and inserted into the slide element, and the cleaning liquid is injected into the injection port 17 such as a connector attached to the tip of the adjusting rod at the opening 6. It is sent in, and the peeling grindstone grind | pulverization and debris by grinding are prevented from accumulating on a tool.

FIG. 2 (A) shows the front of the adjusting rod 10 in which the six injection holes 16 and the passages are indicated by dotted lines with a diameter of 3 mm, and FIG. 2 (B) shows the adjusting rod along the line bb of FIG. 2 (A). Each developed cross section is displayed. The inside is provided with a cavity 15, which has a total of 12 injection holes on the surface of the slide body 12, guides the cleaning liquid introduced from the injection hole 17 to the injection holes, and flows into the sliding holes 15, It flows out at the opening 6 and the slit 4 simultaneously with a foreign material. Increasing the cleaning effect by moving the adjusting rod while letting in the cleaning liquid.

In this embodiment, although the inlet is provided on the front surface of the tool 1, if the cleaning liquid can be supplied from the main shaft side, the connecting rod 14 constituting the adjusting rod 10 is replaced by a hollow instead of the inlet on the front surface. Alternatively, the shaft end may be connected to the injection hole 16 using the injection hole. However, this cleaning structure is based on the premise of supply of the cleaning liquid from the main shaft. Therefore, when it is impossible, it is necessary to remove the tool from the main shaft and clean it.

(Example 2)

It is a cleaning structure for rotating tools mounted on the main shaft, but this structure also functions even when the tool is stopped or removed from the main shaft. 3 (A, B) is the front and the cross-section of the entire tool, the adjustment rod is retracted into the sliding hole, the grinding wheel is the most hidden state, Figure 4 (A, B) is the front and the cross-sectional state of the tool body alone Mark each.

3 (A) shows the front face of the tool 21 having the wear-resistant material 23 protecting the outer circumference of the tool body 22 and the slit 24 into which the slide element 38 is formed. Fig. 3B shows a cross section of the tool along the cc line in Fig. 3A, respectively. In the sliding hole 25, the slide body 32 having two slopes 31 and the adjusting rod 30 made of the connecting rod 34 are inserted, and the spring 39 is sealed in the gap between the connecting rod and the rear of the tool body. Structure.

As the slide main body 32 moves, the bottom of the slide element 38 abutted on the tip end face 31 is raised and lowered, and the slit 24 is a structure in which the grindstone is hidden from the workpiece (not shown). The hook 37 is mounted as a preventive material to prevent the slide element from falling off, and an injection hole 29 is provided at the rear of the tool body, and the cleaning liquid is introduced into the spiral groove 27 on the wall of the sliding hole 25 to grind it. Peeling grindstone particles and debris are prevented from depositing on the tool.

4 (A) shows the front face of the tool body 22, and FIG. 4 (B) shows the cross section of the tool body along the line d-d in FIG. 4 (A). When the groove 27 is formed spirally on the sliding hole wall surface, the passage 28 is connected between the groove 27 and the injection port 29, and the cleaning liquid is introduced into the sliding element 38. The slide element 38 is indicated by a broken line. The cleaning solution, which is divided into a furnace and is provided with a strong flow due to the rotation and the inclination of the groove, overflows, passes through the slide element 38, etc. in the sliding hole 25 while washing, so that a desirable washing effect is generated, and thus the front of the tool body It flows out at the same time as the foreign matter from the opening 26 or the slit 24 of the. An appropriate cleaning liquid joint is interposed between the grinder and the injection port 29.

The rotation of the main shaft turned right when viewed from above, with the grooves twisted to the left. Therefore, a strong flow is generated by the action of the force downward to the cleaning liquid by the rotation of the tool mounted on the main shaft. In the present embodiment, the spiral winding angle is reduced to make one set of spirals. However, the number of sequential pairs may be increased by increasing the spiral winding angle within a range that does not interfere with the movement of the tool.

(Example 3)

5 (A, B) show that the adjusting rod retracts into the sliding hole, respectively, and shows the front face and the cross section (according to the e-e line in FIG. 5A) of the grinding tool where the grindstone is most hidden. The tool 41 has the same cleaning structure as that of the second embodiment and does not change its function. While the second embodiment uses the hook for preventing the fall of the slide element from being hooked, the portion where the slide body 44 with the slope 43 constituting the adjusting rod 42 and the slide element 48 made of the grindstone and the grindstone come into contact with each other. The shape and structure of the helical groove portion 47 are substantially the same as those formed by forming the forged cave grooves 45 and 49 in the prevention material and having one slope.

(Example 4)

6 (A, B) show the front and the cross section (along the line f-f in FIG. 6A) of the grinding tool as a whole, in which the adjusting rod retreats into the sliding hole, and the grindstone is most hidden. The tool 51 has the same cleaning structure as that of the second embodiment and does not change its function. The second embodiment uses a garter spring 52 with a hook for preventing the fallout of the slide element from being hooked, and has a spiral groove in addition to the fall prevention of the slide element 58 made of the grindstone and the grindstone and the elastic body for the silver string mechanism. 57) The shape and structure of the part is approximately the same.

(Example 5)

A tool incorporating two kinds of grindstones having the cleaning functions of Examples 1 and 2, which functions in a state of rotation attached to the main shaft and functions even when removed from the main shaft. Fig. 7 (A, B) shows the front and the cross section of the whole tool in the state where the grinding wheels are hidden in the two adjusting rods inserted into the concentric circles in the sliding hole, and Fig. 8 (A, B) shows the front of the tool body alone. 9 (A, B) show the front face and the cross section of the outer adjusting rod alone, respectively.

Fig. 7A shows the front of the tool 61 in which the wear protection material 62 for outer circumference protection of the tool body 62 and the slit 64 into which two kinds of slide elements are inserted are alternately arranged. Denotes a cross section of a tool having sliding holes 65, 75 formed by combining the tool body along the gg line of FIG. 7A and the two adjusting rods 70, 80 concentrically. The adjusting rod is composed of slide bodies 72 and 82 and connecting rods 74 and 84 with two slopes 71 and 81 respectively, and a spring 79 and 89 is enclosed in a gap surrounded by the connecting rod and the rear of the tool body. to be.

When the slide main bodies 72 and 82 move, the base of the slide elements 78 and 88 which contact the tip end surfaces 71 and 81 rises and falls, and the grindstone hides with respect to the workpiece (not shown). As an anti-falling material for preventing the slide element from falling off from the slit 64, the pins 73 and 83 are prevented from dropping by a half of the slide element by the movement of the adjusting rods 70 and 80. And insert into the slide elements 78 and 88, connect the injection port 69 and the grooves 67 and 77 of the rear part of the tool body through the passages 68 and 76 to let the cleaning liquid in, and remove the grinding stone by grinding. Prevents particles and debris from accumulating.

FIG. 8 (A) shows the front of the tool body 62, and FIG. 8 (B) shows the helical groove 67 formed in the slit 64 and the slide hole 65 wall surface along the line hh of FIG. 8 (A). Each section of the tool body marked with) is indicated. A passage 68 is drilled and connected between the groove and the injection port 69 of the tool body. FIG. 9 (A) shows the front of the outer adjustment rod 70, and FIG. 9 (B) shows the adjustment rod with the spiral groove 77 formed in the inner surface of the slide hole 75 along the line ii of FIG. 9 (A). Each section is marked. The groove is connected to the groove 67 on the side of the tool body 62 via the branch passage 76.

When the cleaning liquid is introduced into the grooves 67 and 77, the cleaning liquid is divided into the slide elements 78 and 88 put in the slit 64, and the cleaning liquid which gives strong flow as the rotation and the inclination of the groove overflows and slides. It passes through the slide elements and the like in the holes 65 and 75 while washing, and a desirable cleaning effect is generated, and flows simultaneously with the foreign matter in the openings 66 in the front of the tool body 62 and in the holes 91 or slits of the cap 90. Comes out. An appropriate cleaning liquid joint is interposed between the grinder and the injection port 69.

The grinding tool incorporating the cleaning function according to the present invention has the following effects.

(1) The cleaning function built into the tool enables the prevention or elimination of foreign matters regardless of the operating condition.

(2) The cleaning effect of the tool during rotation is improved by providing a spiral in the groove.                     

(3) If the cleaning liquid is a water-soluble cutting fluid, it will pass the oil-based solution for a short time after cleaning to prevent the occurrence of rust.

(4) As the service life of tools increased, the labor of disassembly and maintenance decreased, and the operation rate was improved.

Claims (6)

A tool body (2) having a plurality of slits (4) radially penetrating the radial direction of the cylinder, and the slide body (12) slidably inserting the adjusting rod (10) into the tool body, and constituting the adjusting rod. On the bevel 11 of the tip, the bottom of the slide element 18 made of a grindstone and a grindstone slidably inserted into the front slit is abutted, and the movement of the adjusting rod 10 moves the slide element 18 in the radial direction. , The grindstone is made to be hidden on the cylindrical surface, The slide body 12 constituting the adjusting rod 10 inserted into the tool body 2 has an inlet 17 provided on the connecting rod 14 side, and through the passage communicating with the slide body through the inlet, the slide body It is connected to the injection hole 16 opened on the surface, and the cleaning liquid passes through the passage, the injection hole, and the sliding hole 5 at the injection port, and discharges from the open end of the tool body. Grinding tools. The grinding tool with a built-in cleaning function according to claim 1, wherein the injection hole (16) formed in the slide main body (12) of the adjusting rod is disposed at a portion corresponding to the slit (4). A tool body 22 having a plurality of slits 24 radially penetrating the radial direction of the cylinder, and a slide main body 32 slidably inserting the adjusting rod 30 into the tool body, and constituting the adjusting rod. On the slope 31 of the tip abut the bottom of the slide element 38 of the grindstone and the grindstone slidably inserted into the front slit, the movement of the adjusting rod 30 moves the slide element 38 in the radial direction The grinding wheel is concealed from the cylindrical surface, and the groove 27 is formed on the inner surface of the sliding hole 25 in the tool body 22, and the passage from the injection port 29 to the groove is drilled to inject the cleaning liquid into the injection port. Grinding tool with a built-in cleaning function, characterized in that through the passage and the sliding hole to discharge from the open end of the tool body. The grinding tool with a built-in cleaning function according to claim 3, wherein the groove (27) formed in the sliding hole (25) is spiral. A tool body 62 having a plurality of slits 64 penetrating the radial direction of the cylinder, and a slide body slidably inserting the plurality of adjusting rods 70 and 80 into the tool body so as to slidably, and constituting the adjusting rod ( 72, 82 abut the bottoms of the grindstone bars and the grindstone slide elements 78 and 88 slidably inserted into the front slits, respectively, on the slopes 71 and 82 of the tip, and the adjustment rods 70 and 80 move. The slide elements 78 and 88 are moved in the radial direction so that the grinding wheel hides on the cylindrical surface. A plurality of grooves 67 and 77 are formed in the plurality of sliding holes 65 and 75 formed by the tool body 62 and the adjusting rod 70, and at the same time, a passage from the injection port 69 to the groove is drilled to remove the cleaning liquid. The grinding tool with a built-in cleaning function, characterized in that through the plurality of passages and the plurality of sliding holes from the injection port to discharge from the open end of the tool body. The grinding tool with a built-in cleaning function according to claim 5, wherein the grooves (67, 77) formed in the sliding holes (65, 75) are spiral.

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