JP3393371B2 - Back cover structure of grinding machine - Google Patents
Back cover structure of grinding machineInfo
- Publication number
- JP3393371B2 JP3393371B2 JP09489199A JP9489199A JP3393371B2 JP 3393371 B2 JP3393371 B2 JP 3393371B2 JP 09489199 A JP09489199 A JP 09489199A JP 9489199 A JP9489199 A JP 9489199A JP 3393371 B2 JP3393371 B2 JP 3393371B2
- Authority
- JP
- Japan
- Prior art keywords
- movable cover
- cover structure
- cover
- grinding wheel
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【０００１】[0001]
【発明の属する技術の分野】本発明は、砥石頭周囲およ
びワークテーブルの加工位置の周囲がカバーで覆われた
研削盤に関し、特に、本体ベッドの後部と砥石頭との間
を遮蔽する背面カバーを開き状態に掛け止めして前記本
体ベッドの後部から前記砥石頭周囲やワークテーブルの
加工位置近辺の作業、例えばドレッサ交換や調整の作
業、本体ベッド上面の清掃作業などを行い得るようにし
た研削盤の背面カバー構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinder in which a periphery of a grindstone head and a working position of a work table are covered with a cover, and more particularly, a back cover for shielding between a rear portion of a main body bed and the grindstone head. Grinding so that the work can be carried out from the rear part of the main body bed around the grindstone head and near the working position of the work table, for example, dresser replacement and adjustment work, cleaning work of the main body bed upper surface, etc. Regarding the back cover structure of the board.
【０００２】[0002]
【従来の技術】平面研削盤としては種々のものがある
が、一般的にはワークテーブルの上方にコラムに支持さ
れた砥石頭が配置され、ワークテーブル上に装着された
ワークを砥石車の周面あるいは下端面で平面研削するの
が普通である。研削動作中は研削液がワークの研削部位
にノズルなどによって吹き付けられるが、その時の液の
飛散を防ぐために研削盤の操作側となる本体ベッドの前
面、左右側面および背面に、また場合によっては上面等
に飛沫避けカバーが設けられる。2. Description of the Related Art There are various types of surface grinders. Generally, a grind head supported by a column is arranged above a work table, and a work mounted on the work table is surrounded by a grinding wheel. It is common to perform surface grinding on the surface or the lower end surface. During the grinding operation, the grinding fluid is sprayed to the grinding part of the workpiece by a nozzle etc., but in order to prevent the scattering of the fluid at that time, it is on the front side, left and right sides and the back side of the main body bed which is the operating side of the grinder, and in some cases the top surface. A cover for avoiding splashes is provided on the etc.
【０００３】この種のカバー構造として従来、研削盤の
操作側の前面カバーは中央から両側へ引戸式に手動でス
ライドさせる平板状のカバーが用いられ、側面カバーは
ワークテーブルの左右移動の際に自動で上下動する構造
としたものがある。テーブルが円形テーブルであってベ
ッドの左右方向に移動しない形式のものでは側面カバー
は固定配置でもよい。また、背面カバーは通常は昇降す
る砥石頭の下部と該砥石頭を支持するベッドとの間に設
けられ、砥石頭の上下動を利用して上下に伸縮する構
造、具体的には、複数枚の平板を互いに重ね合せ可能に
配置し、上段のカバー板を砥石頭に連結するとともに該
カバー板の下端で中段のカバー板と掛け止めできるよう
にし、前記砥石頭が上昇する時は上段のカバー板が中段
のカバー板を吊り上げるようにして上昇し、最上昇状態
で複数のカバー板が互いに係合したまま全体として上下
に伸びきるようにしている（例えば特願平１１−３９３
００号）。As a cover structure of this kind, conventionally, a flat cover which is manually slid from the center to both sides is used as a front cover on the operating side of a grinder, and a side cover is used when the work table is moved left and right. There is a structure that automatically moves up and down. If the table is a circular table and does not move in the left-right direction of the bed, the side cover may be fixed. Further, the back cover is usually provided between the lower part of the whetstone head that moves up and down and the bed that supports the whetstone head, and vertically expands and contracts by using the vertical movement of the whetstone head. The flat plates are arranged so that they can be overlapped with each other, the upper cover plate is connected to the grindstone head, and the lower end of the cover plate can be engaged with the middle cover plate, and when the grindstone head rises, the upper cover The plate is lifted to lift the middle cover plate, and in the maximum lifted state, the plurality of cover plates are engaged with each other and can be extended vertically as a whole (for example, Japanese Patent Application No. 11-393).
No. 00).
【０００４】[0004]
【発明が解決しようとする課題】この種の研削盤では、
上述のように砥石頭を含めて砥石車の周囲および加工位
置におけるワークテーブルのワーク周囲は研削液や研削
粉の飛散防止カバーで覆われており、該カバーを開放状
態に保持できる箇所は手動引戸式の前面カバーのみであ
る。したがってワークの脱着、砥石車の交換、砥石修正
用のドレッサの取付、交換等の作業はすべて本体ベッド
の前面側から行っている。しかし、例えば大形のワー
ク、特に平面形状の大きなワークを研削対象とするよう
な場合、あるいは大形の割出しテーブルを用いて研削加
工するような場合には、それだけワークテーブルの大き
い研削盤となり、操作側から奥深い所に砥石頭が位置す
ることとなり、前面側から砥石車の交換や研削液ノズル
の位置調整あるいはドレッサの交換、調整等をするには
非常にやっかいな作業となる。SUMMARY OF THE INVENTION In this type of grinder,
As described above, the circumference of the grinding wheel including the grinding wheel head and the circumference of the work table at the processing position are covered with a cover for preventing the scattering of grinding liquid or grinding powder, and the place where the cover can be held open is a manual sliding door. Only the front cover of the formula. Therefore, work such as attachment / detachment, replacement of the grinding wheel, attachment and replacement of the dresser for correcting the grinding stone is all performed from the front side of the main body bed. However, for example, when a large workpiece, especially a workpiece with a large planar shape is to be ground, or when grinding is performed using a large indexing table, a grinding machine with a large work table is required. Since the grindstone head is located at a deep place from the operating side, it is a very troublesome work to replace the grindstone wheel, adjust the position of the grinding fluid nozzle, replace the dresser, or adjust from the front side.
【０００５】側面カバーのカバー面の前方、つまり研削
盤の左右はワークテーブルが左右に延在しており、この
側面カバーを開けてこの位置から作業することは事実上
不可能である。また、背面カバーは砥石頭に追従して上
下動するものの、上下複数のカバー板の間には隙間はな
く、研削盤の後部は常時カバーで遮蔽された状態であ
り、前記研削盤の後側からテーブルまわりの清掃を行っ
たりすることもできなかった。A work table extends to the left and right in front of the cover surface of the side cover, that is, on the left and right of the grinder, and it is virtually impossible to open the side cover and work from this position. Further, although the back cover moves up and down following the grindstone head, there is no gap between the upper and lower cover plates, and the rear part of the grinder is always shielded by the cover. I couldn't clean the surroundings.
【０００６】そこで本発明は、ワークテーブル上の研削
位置のまわりがカバーで覆われた研削盤において、砥石
頭に追従して上下動する機能を確保しつつ、簡単な操作
で砥石頭後側の背面カバーを開き状態に保持することが
でき、本体ベッドの後側の、コラム後側方から砥石頭お
よび砥石車の周囲、あるいはワークテーブル上の加工位
置の周囲に作業者が手等を入れて自由に作業でき、これ
によって前面の操作側からみて奥方部分の研削準備作
業、ドレッサ交換、調整あるいはテーブル上面の清掃等
を容易に行い得る研削盤の背面カバー構造を提供するこ
とにある。In view of the above, the present invention provides a grinding machine in which the grinding position on the work table is covered with a cover, while ensuring the function of moving up and down by following the grinding wheel head, and at the rear side of the grinding wheel head with a simple operation. The back cover can be held open, allowing the operator to put their hands around the grinding head and grinding wheel from the back of the column on the back of the main unit bed, or around the machining position on the work table. It is an object of the present invention to provide a back cover structure of a grinding machine which can be freely worked, and thereby can easily perform a grinding preparation work of a rear part, a dresser replacement, an adjustment or a cleaning of a table upper surface when viewed from an operation side of a front surface.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、本体ベ
ッドの後部にコラムベッドが配置され、前記コラムベッ
ド上に前後移動可能なサドルを介してコラムが搭載さ
れ、該コラムの前面に砥石頭が上下動可能に支持され、
前記砥石頭の下側と前記本体ベッドの後部との間の開口
部がカバーで遮蔽される研削盤の背面カバー構造におい
て、砥石車の後方で前記砥石頭の下部に連結され、か
つ、該砥石頭に従って上下動可能な上部可動カバーと、
上端部で前記上部可動カバーに係止されて上下動する下
側可動カバー構体とを有し、前記下側可動カバー構体を
前記上部可動カバーに掛け止めする掛止手段が設けら
れ、前記下側可動カバー構体の上昇状態で前記砥石頭先
端の砥石車が前記本体ベッドの後部へ露出するように該
下側可動カバー構体と前記本体ベッドとの間が開成する
ようにした研削盤の背面カバー構造が提供される。According to the present invention, a column bed is arranged at the rear portion of a main body bed, the column is mounted on the column bed via a saddle that can move back and forth, and a grindstone is provided on the front surface of the column. The head is supported so that it can move up and down,
In a back cover structure of a grinder in which an opening between the lower side of the grinding wheel head and a rear portion of the main body bed is shielded by a cover, the grinding wheel is connected to a lower part of the grinding wheel head behind a grinding wheel and the grinding wheel. An upper movable cover that can move up and down according to your head,
A lower movable cover structure that moves up and down by being locked to the upper movable cover at an upper end portion, and a locking means for locking the lower movable cover structure to the upper movable cover is provided. The rear cover structure of the grinding machine, in which the gap between the lower movable cover structure and the main body bed is opened so that the grinding wheel at the tip of the grindstone is exposed to the rear part of the main body bed when the movable cover structure is raised. Will be provided.
【０００８】[0008]
【発明の実施の形態】次に、本発明を好適な実施形態に
ついて図面を参照して説明する。図１および図２はそれ
ぞれ本発明の１実施例に係る背面カバーを採用した平面
研削盤の概略的な側面図であり、特に図１は背面カバー
が上方へ伸びきった状態、図２は砥石頭が最下降位置に
きて背面カバーが重ね合さった状態を示している。また
図３は図１の後部のコラムを除去した状態での背面カバ
ーの背面図である。本体ベッド１の中央後部にコラムベ
ッド４０が配置され、該コラムベッド４０上に前後移動
可能なサドル４１を介してコラム２が配置され、このコ
ラム前面に砥石頭３が保持されている。砥石頭３は、コ
ラム上部に搭載した駆動モータ（図示省略）およびねじ
送り機構等により、コラム前面の摺動面に沿って上下動
可能であり、これによって砥石頭３が本体ベッド１に対
して上下動するようになっている。なお、サドル４１は
コラムベッド４０の後部に取り付けられた駆動モータ
（サーボモータ）４２によりボールスクリュウ等のねじ
送り機構４５を介して前後移動する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings. 1 and 2 are schematic side views of a surface grinder adopting a back cover according to an embodiment of the present invention. In particular, FIG. 1 shows a state in which the back cover is fully extended, and FIG. 2 shows a grindstone. The figure shows a state in which the head is at the lowest position and the back covers are overlapped. FIG. 3 is a rear view of the rear cover with the rear column of FIG. 1 removed. A column bed 40 is arranged at the center rear part of the main body bed 1, a column 2 is arranged on the column bed 40 via a saddle 41 which can move back and forth, and a grindstone head 3 is held on the front surface of the column. The whetstone head 3 can be moved up and down along a sliding surface on the front surface of the column by a drive motor (not shown) mounted on the upper part of the column, a screw feed mechanism, etc., whereby the whetstone head 3 is moved relative to the main body bed 1. It is designed to move up and down. The saddle 41 is moved back and forth by a drive motor (servo motor) 42 attached to the rear portion of the column bed 40 via a screw feed mechanism 45 such as a ball screw.
【０００９】この実施例で砥石頭３には水平な軸線Ａを
もつ砥石車６が回転可能に軸支されている。砥石車６は
砥石頭３に保持されたモータ（図示省略）によりギア機
構（図示省略）を介して軸線Ａまわりに回転する。本体
ベッド１の後部上面に、かつ下降位置の砥石車６に近接
して砥石車修正のためのドレッサ１１が設けられてい
る。砥石頭３はコラム２から本体ベッド１の上方へ水平
に伸びており、その両側部にガイドロッド８が該砥石頭
３の基部から先端まで伸長するように固着されている。
また砥石頭先端の砥石車６はその下部分を残して全体が
砥石カバー５で覆われている。In this embodiment, a grinding wheel 6 having a horizontal axis A is rotatably supported on the grinding wheel head 3. The grinding wheel 6 is rotated around the axis A by a motor (not shown) held by the grinding wheel head 3 via a gear mechanism (not shown). A dresser 11 for correcting the grinding wheel is provided on the rear upper surface of the main body bed 1 and in the vicinity of the grinding wheel 6 in the lowered position. The grindstone head 3 extends horizontally from the column 2 to above the main body bed 1, and guide rods 8 are fixed to both sides of the grindstone head 3 so as to extend from the base of the grindstone head 3 to the tip.
The grindstone wheel 6 at the tip of the grindstone is entirely covered with the grindstone cover 5 except its lower portion.
【００１０】本実施例に係る背面カバーは上部可動カバ
ー板３０と、下側可動カバー構体（後述）と、本体ベッ
ドの後部に固着された背の低い固定カバー２８とから構
成される。図３に示すように、前記背面カバーの上部可
動カバー板３０の上部付近には該カバー板３０の略横巾
近くまで延びる横桁部材７が固着されており、この横桁
部材７上に貫通孔をもつ一対のロッド係合部材４３が固
着されている。ロッド係合部材４３の前記貫通孔には砥
石頭３の側部のガイドロッド８が前後に摺動可能に挿入
されている。前記背面カバーの両側部位置で本体ベッド
１の後部に支柱２０（図１，図２には図示省略）が設け
られ、この支柱２０に形成されたガイド溝に前記背面カ
バーの両側部が支持されている。ガイドロッド８ととも
に砥石頭３が上下動するときは、ガイドロッド８と係合
したロッド係合部材４３および横桁部材７を介して上部
可動カバー板３０および前記下側可動カバー構体が前記
支柱２０のガイド溝に沿って上下動する。なお、この上
下動作についてはさらに後述する。また砥石頭３がコラ
ム２とともに前後移動するときは、ガイドロッド８がロ
ッド係合部材４３に対して前後に摺動するので、前記背
面カバーはその位置に静止した状態に維持される。ここ
で前記下側可動カバー構体は、この実施例では、第１，
第２の下側カバー板３１，３２で構成されるが、これに
ついては前記背面カバーの上下動作とともにさらに後述
する。支柱２０の外側には該支柱２０とほぼ同じ高さの
側方飛沫避けカバー２１，２２が固定配置されている。
なお１０は本体ベッド１の上面に設けられた円形のワー
クテーブルである。The back cover according to this embodiment comprises an upper movable cover plate 30, a lower movable cover structure (described later), and a short fixed cover 28 fixed to the rear portion of the main body bed. As shown in FIG. 3, a cross girder member 7 is fixed near the upper part of the upper movable cover plate 30 of the rear cover and extends to approximately the width of the cover plate 30. A pair of rod engaging members 43 having holes are fixed. The guide rod 8 on the side of the grindstone head 3 is slidably inserted in the through hole of the rod engaging member 43 in the front-rear direction. Posts 20 (not shown in FIGS. 1 and 2) are provided at the rear portions of the main body bed 1 at positions on both sides of the back cover, and both sides of the back cover are supported by guide grooves formed in the posts 20. ing. When the grindstone head 3 moves up and down together with the guide rod 8, the upper movable cover plate 30 and the lower movable cover structure are moved through the rod engaging member 43 engaged with the guide rod 8 and the cross beam member 7 to the column 20. It moves up and down along the guide groove of. The vertical movement will be described later. Further, when the grindstone head 3 moves back and forth together with the column 2, the guide rod 8 slides back and forth with respect to the rod engaging member 43, so that the back cover is kept stationary at that position. In this embodiment, the lower movable cover structure is
The second lower cover plates 31 and 32 are provided, which will be described later together with the vertical movement of the back cover. Outside the columns 20, side splash avoiding covers 21 and 22 having substantially the same height as the columns 20 are fixedly arranged.
Reference numeral 10 is a circular work table provided on the upper surface of the main body bed 1.
【００１１】図４は本発明の実施例に係る背面カバー構
造の概略的な側面図である。また図５は砥石車６の最上
昇状態で前記下側可動カバー構体のみを手動で持ち上げ
て砥石頭３先端の横桁部材７に掛け止めし、下部固定カ
バー板２８に対して開離させたときの概略的な側面図で
ある。図３および図６に示すように、横桁部材７の両端
近くの背部に短い鎖部材２３の一端が鉤部材２６によっ
て装着されている。前記下側可動カバー構体を上方へ開
かないときは、鎖部材２３の垂れ下がりをなくすため
に、鎖部材２３の前記一端の装着箇所より高い位置の上
部可動カバー板３０の上端に設けた鉤状突起２５に鎖部
材２３の他端が引掛けられている。FIG. 4 is a schematic side view of a back cover structure according to an embodiment of the present invention. Further, in FIG. 5, only the lower movable cover structure is manually lifted when the grinding wheel 6 is in the most raised state to be hooked on the cross beam member 7 at the tip of the grinding wheel head 3 and separated from the lower fixed cover plate 28. It is a schematic side view at the time. As shown in FIGS. 3 and 6, one end of the short chain member 23 is attached to the back portion near both ends of the cross beam member 7 by a hook member 26. When the lower movable cover structure is not opened upward, a hook-shaped protrusion provided on the upper end of the upper movable cover plate 30 at a position higher than the mounting position of the one end of the chain member 23 in order to prevent the chain member 23 from hanging down. The other end of the chain member 23 is hooked on 25.
【００１２】上部可動カバー板３０の下端には背面側
（本体ベッドの正面からみて後方）へ突出した突起３０
ａが形成され、第１の下側カバー板３１の上端近くには
前面側（本体ベッドからみて正面側）へ突出しかつ上部
可動カバー板３０の前記突起３０ａと係合可能な突起３
１ａが形成され、さらに該第１の下側カバー板３１の上
端に、第２の下側カバー板３２の上端と接当可能な背面
側へ曲折したＬ片部３１ｂが、また該第１の下側カバー
板３１の下端に、背面側へ突出した突起３１ｃがそれぞ
れ形成されている。第１の下側カバー板３１の下側に配
置される第２の下側カバー板３２も、前記第１の下側カ
バー板３１と略同様に、その上部前面に突起３２ａが、
また上端背面へ向けてＬ片部３２ｂがそれぞれ形成され
ている。なお、各カバー板の板面方向の間は若干の隙間
が存在する。At the lower end of the upper movable cover plate 30, there is a protrusion 30 protruding rearward (toward the front of the body bed).
a is formed, and a protrusion 3 is formed near the upper end of the first lower cover plate 31 and projects toward the front side (the front side when viewed from the main body bed) and is engageable with the protrusion 30a of the upper movable cover plate 30.
1a is formed, and further, on the upper end of the first lower cover plate 31, an L piece portion 31b bent to the back side capable of abutting with the upper end of the second lower cover plate 32 is provided. At the lower end of the lower cover plate 31, protrusions 31c projecting to the back side are formed, respectively. The second lower cover plate 32 arranged below the first lower cover plate 31 also has a protrusion 32a on the upper front surface thereof in substantially the same manner as the first lower cover plate 31.
Further, L piece portions 32b are formed toward the rear surface of the upper end, respectively. It should be noted that there is a slight gap between the plate surfaces of the cover plates.
【００１３】図４（Ａ）は背面カバーが完全に伸び切っ
た状態であり、上部可動カバー板３０の突起３０ａと第
１の下側カバー板３１の上側突起３１ａとが係合して該
第１の下側カバー板３１が上部可動カバー板３０に吊り
下げられ、同時に第１の下側カバー板３１の下側突起３
１ｃが第２の下側カバー板３２の上側突起３２ａと係合
して該第２の下側カバー板３２が吊り下げられる。この
状態から前記砥石頭の下降とともに上部可動カバー板３
０が下降すると、該上部可動カバー板３０に吊られた第
１，第２の下側カバー板３１，３２も自重で降下して該
第２の下側カバー板３２が固定カバー板２８に重なり、
かつ本体ベッド１の上面に接当して停止する（図４
（Ｂ））。さらに上部可動カバー３０板が下降し、第１
の下側カバー板３１の上縁のＬ片部３１ｂが第２の下側
カバー板３２の上端と接当して停止し、これら３枚のカ
バー板３０，３１，３２が最下降位置で重なった状態と
なる（図４（Ｃ））。前記砥石頭３が上昇するときは図
４の（Ｃ）から（Ａ）まで上述と逆の動作で上昇し、こ
のようにして前記砥石頭３の後方は常に背面カバーで覆
われる。FIG. 4A shows a state in which the back cover is completely extended, and the protrusion 30a of the upper movable cover plate 30 and the upper protrusion 31a of the first lower cover plate 31 are engaged with each other. 1, the lower cover plate 31 of the first lower cover plate 31 is hung on the upper movable cover plate 30, and at the same time, the lower protrusion 3 of the first lower cover plate 31.
1c engages with the upper protrusion 32a of the second lower cover plate 32 to suspend the second lower cover plate 32. From this state, as the grindstone head descends, the upper movable cover plate 3
When 0 is lowered, the first and second lower cover plates 31 and 32 suspended by the upper movable cover plate 30 are also lowered by their own weight, and the second lower cover plate 32 overlaps the fixed cover plate 28. ,
In addition, it contacts the upper surface of the main body bed 1 and stops (Fig. 4).
(B)). Further, the upper movable cover 30 plate descends,
The L piece portion 31b of the upper edge of the lower cover plate 31 comes into contact with the upper end of the second lower cover plate 32 and stops, and these three cover plates 30, 31, 32 overlap at the lowest position. Will be in a closed state (FIG. 4 (C)). When the grinding wheel head 3 moves up, it goes up from the operation shown in FIGS. 4 (C) to 4 (A) in the reverse order to that described above, and thus the back of the grinding wheel head 3 is always covered with the back cover.
【００１４】図５を参照すれば、前記砥石頭が最上昇位
置に上がった状態で、第２の下側カバー板３２の下端を
手動操作で持ち上げ、そのまま上方へ引き上げる。この
第２のカバー板３２の上方移動によって、同時に第１の
下側カバー板３１も上昇し（３２ｂと３１ｂとの係
合）、上部可動カバー板３０に鉤部材２６を介して装着
された鎖部材２３を上側の鉤状突起２５から外して鉤部
材２６から下向きに垂らし、その先端を第２の下側カバ
ー板３２の上端のＬ片部３２ｂに係合させる。Referring to FIG. 5, with the grindstone head raised to the highest position, the lower end of the second lower cover plate 32 is manually lifted and then lifted upward. By the upward movement of the second cover plate 32, the first lower cover plate 31 also rises simultaneously (engagement of 32b and 31b), and the chain attached to the upper movable cover plate 30 via the hook member 26. The member 23 is detached from the upper hook-shaped protrusion 25 and hung downward from the hook member 26, and the tip end thereof is engaged with the L piece portion 32b at the upper end of the second lower cover plate 32.
【００１５】この状態で第１，第２の下側カバー板３
１，３２は共に上部可動カバー板３０と重なって最上昇
位置に保持され、固定カバー板２８との間（図５の符号
Ｌ）が大きく開かれる。前記背面カバーの後側にはコラ
ム２が配置さているものの、該コラム２の横幅は前記背
面カバーの横幅より小さく、したがってコラム２の両側
部付近から固定カバー板２８上側の開いた部分を通して
ワークテーブル１０まわりの清掃や砥石車６の近くのド
レッサ１１の交換、調整その他研削盤前面の操作側から
は手の届きずらい奥方部分の作業が行える。図７の平面
図でみれば、コラム２の側方の矢印Ａ方向から作業者が
接近し、ベッド後側から内部の作業ができる。作業終了
後は第２の下側カバー板３２のＬ片部３２ｂから鎖部材
２３を外し、前記下側可動カバー構体の自重を利用し
て、該第２の下側カバー板３２を手動で降ろすと図４
（Ａ）の状態に戻る。In this state, the first and second lower cover plates 3
Both 1 and 32 are overlapped with the upper movable cover plate 30 and are held at the highest position, and the gap between the fixed cover plate 28 and the fixed cover plate 28 (L in FIG. 5) is greatly opened. Although the column 2 is arranged on the rear side of the rear cover, the lateral width of the column 2 is smaller than the lateral width of the rear cover, and therefore, the work table is opened from the both sides of the column 2 through the open portions above the fixed cover plate 28. It is possible to perform cleaning of the area around 10, replacement of the dresser 11 near the grinding wheel 6, adjustment, and other work in the back portion that is difficult to reach from the operating side of the front surface of the grinder. As seen from the plan view of FIG. 7, the worker approaches from the direction of the arrow A on the side of the column 2 and the inside work can be performed from the back side of the bed. After the work is completed, the chain member 23 is removed from the L piece portion 32b of the second lower cover plate 32, and the second lower cover plate 32 is manually lowered by using the own weight of the lower movable cover structure. And Fig. 4
Return to the state of (A).
【００１６】上述の実施例では、開離させたときの下側
可動カバー構体の掛止手段として鎖部材２３と下側カバ
ー板の鉤部材（Ｌ片部）３２ｂとの係合を利用したが、
本発明は勿論この態様に限るものでなく、例えば第２の
下側カバー板３２の上端と上部可動カバー板３０に該第
２の下側カバー板が最上昇位置で互いに整合する孔を穿
け、この孔にピンを差し込んで下側カバー板を上側カバ
ー板に保持するようにしてもよい。また上記実施例では
前記下側可動カバー構体を第１，第２の２枚の下側カバ
ー板で構成したが、１枚の下側カバー板あるいは３枚以
上の互いに重なり得る下側カバー板としてもよい。研削
盤自体もワークテーブルを回転テーブルとしたものだけ
でなく、砥石軸を鉛直にした竪型平面研削盤やワークテ
ーブルが左右に大きく移動するトラバース研削盤等上記
実施例以外の種々の形式の研削盤に適用可能である。In the above-described embodiment, the engagement between the chain member 23 and the hook member (L piece portion) 32b of the lower cover plate is used as the hooking means for the lower movable cover structure when the cover member is opened. ,
Of course, the present invention is not limited to this mode, and for example, a hole is formed in the upper end of the second lower cover plate 32 and the upper movable cover plate 30 so that the second lower cover plate aligns with each other at the highest position, A pin may be inserted into this hole to hold the lower cover plate on the upper cover plate. Further, in the above embodiment, the lower movable cover structure is composed of the first and second lower cover plates, but as one lower cover plate or three or more lower cover plates which can overlap each other. Good. The grinding machine itself is not limited to a rotary table, but a vertical surface grinder with a vertical grindstone axis or a traverse grinder in which the work table moves greatly from side to side. It can be applied to the board.
【００１７】本発明の他の実施例として、背面カバーの
最下部に位置する固定カバー２８を設けない構成とする
こともできる。また前記下側可動カバー構体を手動で持
ち上げて上昇位置にある上部可動カバー板３０に掛け止
めする構成でなく、可動カバー全体が下限位置にある状
態で鎖部材等で下側カバー板を上部可動カバー板３０に
掛け止めし、この状態で砥石頭３の上昇動作を利用して
前記可動カバー全体を上昇させて本体ベッド後部を開成
させるようにしてもよい。As another embodiment of the present invention, the fixed cover 28 located at the bottom of the back cover may not be provided. Further, the lower movable cover structure is not manually lifted and hooked on the upper movable cover plate 30 in the raised position, but the lower cover plate is moved upward by a chain member or the like while the entire movable cover is at the lower limit position. It is also possible to hang it on the cover plate 30, and in this state, use the lifting operation of the grindstone head 3 to lift the entire movable cover and open the rear part of the main body bed.
【００１８】[0018]
【発明の効果】以上説明したように本発明によれば、砥
石車を含めて研削加工位置周囲が飛沫よけカバーで覆わ
れた研削盤において、砥石頭と連動して上下動する背面
カバーを簡単な操作で開放状態に保持することができ、
これによって研削盤前面の操作側からは手の届きずらい
テーブル奥方部分の清掃やドレッサ交換、調整あるいは
砥石車の交換等の作業が本体ベッドの後側から容易に行
い得、研削動作の段取りが迅速化され、研削加工能率の
向上が図られる等の効果がもたらされる。通常研削動作
時の砥石車に追従して伸縮動作する背面カバー自体の構
造には何ら支障をきたすことなく手動あるいは自動（砥
石頭の上昇動作を利用）で背面カバーを開き状態に保持
でき、その構造も簡潔であり、既存の背面カバーに対し
て僅かな付加工事のみで対処できる。本発明は特にワー
クテーブルあるいはその上に搭載する割出しテーブルが
大きく、奥行きの深い研削盤や大形の研削盤に適用して
有用である。As described above, according to the present invention, in a grinder in which the periphery of a grinding process position including a grinding wheel is covered with a splash-proof cover, a back cover that moves up and down in conjunction with a grinding wheel head is provided. Can be held in the open state with a simple operation,
This makes it possible to easily perform work such as cleaning of the back of the table that is difficult to reach from the operating side of the grinding machine, dresser replacement, adjustment, or grinding wheel replacement from the rear side of the main unit bed, and the grinding operation can be set up. The advantages are that the speed is increased and the efficiency of the grinding process is improved. The back cover can be held open manually or automatically (using the lifting operation of the grinding wheel head) without any hindrance to the structure of the back cover itself that expands and contracts following the grinding wheel during normal grinding operation. The structure is also simple and can be dealt with by adding a little work to the existing back cover. The present invention is particularly useful when applied to a grinding machine having a large work table or an indexing table mounted thereon and having a large depth, and a large-sized grinding machine.
【図１】背面カバーが上方へ伸びきった状態における本
発明の１実施例に係る背面カバー部分の概略的な側面図
である。FIG. 1 is a schematic side view of a back cover portion according to an embodiment of the present invention in a state where a back cover is fully extended.
【図２】背面カバーが重ね合さった状態における本発明
の１実施例に係る背面カバー部分の概略的な側面図であ
る。FIG. 2 is a schematic side view of a back cover portion according to one embodiment of the present invention with the back covers overlaid.
【図３】図１の実施例におけるベッド後部のコラムを除
去した状態での背面カバーの背面図である。FIG. 3 is a rear view of the rear cover with the column at the rear of the bed removed in the embodiment of FIG.
【図４】本発明の実施例に係る背面カバー構造の概略的
な側面図である。FIG. 4 is a schematic side view of a back cover structure according to an embodiment of the present invention.
【図５】本発明の実施例に係る背面カバーを下部の固定
カバーに対して開離したときの概略的な側面図である。FIG. 5 is a schematic side view of the back cover according to the exemplary embodiment of the present invention when the back cover is separated from the lower fixed cover.
【図６】本発明の実施例に係る背面カバーを開成しない
ときの鎖部材の垂れ下り防止手段の一例を示す拡大図で
ある。FIG. 6 is an enlarged view showing an example of means for preventing the chain members from hanging down when the back cover according to the embodiment of the present invention is not opened.
【図７】本発明の実施例に係る研削盤の概略的な上面図
である。FIG. 7 is a schematic top view of a grinding machine according to an embodiment of the present invention.
１ 本体ベッド ２ コラム ３ 砥石頭 ５ 砥石カバー ６ 砥石車 ７ 横桁部材 ８ ガイドロッド １０ ワークテーブル ２３ 鎖部材 ２５ 鉤状突起 ２６ 鉤部材 ２８ 固定カバー板 ３０ 上部可動カバー板 ３１ 第１の下側カバー板 ３２ 第２の下側カバー板 ４０ コラムベッド ４１ サドル ４２ 駆動モータ（サーボモータ） ４３ ロッド係合部材 1 Body bed 2 columns 3 Whetstone head 5 grindstone cover 6 grinding wheel 7 Cross girder member 8 Guide rod 10 work table 23 Chain member 25 hook-shaped projections 26 Hook members 28 Fixed cover plate 30 Upper movable cover plate 31 First lower cover plate 32 Second lower cover plate 40 column bed 41 saddle 42 Drive motor (servo motor) 43 Rod engaging member
Claims (3)
れ、前記コラムベッド上に前後移動可能なサドルを介し
てコラムが搭載され、該コラムの前面に砥石頭が上下動
可能に支持され、前記砥石頭の下側と前記本体ベッドの
後部との間の開口部がカバーで遮蔽される研削盤の背面
カバー構造において、砥石車の後方で前記砥石頭の下部
に連結され、かつ、該砥石頭に従って上下動可能な上部
可動カバーと、上端部で前記上部可動カバーに係止され
て上下動する下側可動カバー構体とを有し、前記下側可
動カバー構体を前記上部可動カバーに掛け止めする掛止
手段が設けられ、前記下側可動カバー構体の上昇状態で
前記砥石頭先端の砥石車が前記本体ベッドの後部へ露出
するように該下側可動カバー構体と前記本体ベッドとの
間が開成することを特徴とする研削盤の背面カバー構
造。1. A column bed is arranged at a rear portion of a main body bed, the column is mounted on the column bed via a saddle that can move back and forth, and a grindstone head is supported on a front surface of the column so as to be vertically movable. In a back cover structure of a grinding machine in which an opening between a lower side of a grinding wheel head and a rear portion of the main body bed is covered with a cover, the grinding wheel head is connected to a lower part of the grinding wheel head behind a grinding wheel and the grinding wheel head. And an upper movable cover that can move up and down according to the above, and a lower movable cover structure that moves up and down by being locked to the upper movable cover at the upper end, and the lower movable cover structure is hooked on the upper movable cover. Hooking means is provided, and an opening is formed between the lower movable cover structure and the main body bed so that the grinding wheel at the tip of the grindstone is exposed to the rear part of the main body bed when the lower movable cover structure is raised. What to do Rear cover structure of the grinding machine, characterized.
る上下複数の下部カバーで構成され、前記掛止手段は前
記上部可動カバーの上部に設けられた鎖部材と、前記下
側可動カバー構体の上端近傍に設けられ、かつ、前記鎖
部材に掛け止めされる鉤部材とを有することを特徴とす
る請求項第１項に記載した研削盤の背面カバー構造。2. The lower movable cover structure is composed of a plurality of upper and lower lower covers that are superposed on each other, and the hooking means is a chain member provided on the upper part of the upper movable cover, and the lower movable cover structure. The back cover structure of the grinding machine according to claim 1, further comprising: a hook member provided near an upper end of the grinder and hooked to the chain member.
および前記下側可動カバー構体の上端近傍の双方に穿け
られた整合孔と、前記整合孔に挿入されるピン部材とを
有することを特徴とする請求項第１項に記載した研削盤
の背面カバー構造。3. The locking means has an alignment hole formed both in the upper part of the upper movable cover and in the vicinity of the upper end of the lower movable cover structure, and a pin member inserted into the alignment hole. The back cover structure for a grinding machine according to claim 1, characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09489199A JP3393371B2 (en) | 1999-04-01 | 1999-04-01 | Back cover structure of grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09489199A JP3393371B2 (en) | 1999-04-01 | 1999-04-01 | Back cover structure of grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000288932A JP2000288932A (en) | 2000-10-17 |
| JP3393371B2 true JP3393371B2 (en) | 2003-04-07 |
Family
ID=14122675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09489199A Expired - Fee Related JP3393371B2 (en) | 1999-04-01 | 1999-04-01 | Back cover structure of grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3393371B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120072008A (en) * | 2010-12-23 | 2012-07-03 | 두산인프라코어 주식회사 | Protection cover for feed system of machine tool |
| CN104942647A (en) * | 2015-06-30 | 2015-09-30 | 宁夏共享机床辅机有限公司 | Self-guiding type guide rail protection cover supporting device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100928541B1 (en) | 2003-06-17 | 2009-11-26 | 주식회사 포스코 | Trolley grinding machine |
| JP2007098543A (en) * | 2005-10-07 | 2007-04-19 | Nikon Corp | Workpiece carrier and double-sided polishing device |
| JP5190106B2 (en) * | 2010-12-24 | 2013-04-24 | コマツＮｔｃ株式会社 | Grinding machine scattering prevention structure |
| CN108723107B (en) * | 2018-06-07 | 2020-06-09 | 佛山市南海华皓五金制品有限公司 | Working method of multifunctional aluminum profile die machining device |
| CN109822409B (en) * | 2019-03-12 | 2020-02-11 | 安徽马钢表面技术股份有限公司 | Mirror surface grinding equipment for roller workpieces |
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1999
- 1999-04-01 JP JP09489199A patent/JP3393371B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120072008A (en) * | 2010-12-23 | 2012-07-03 | 두산인프라코어 주식회사 | Protection cover for feed system of machine tool |
| KR101715401B1 (en) * | 2010-12-23 | 2017-03-22 | 두산공작기계 주식회사 | Protection cover for feed system of machine tool |
| CN104942647A (en) * | 2015-06-30 | 2015-09-30 | 宁夏共享机床辅机有限公司 | Self-guiding type guide rail protection cover supporting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000288932A (en) | 2000-10-17 |
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