JP7097538B2

JP7097538B2 - Tipped saw manufacturing method

Info

Publication number: JP7097538B2
Application number: JP2017229631A
Authority: JP
Inventors: 友良宮崎
Original assignee: 株式会社トリガー
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2022-07-08
Anticipated expiration: 2037-11-10
Also published as: JP2019089304A

Description

本発明は、台金の外周縁部にチップが固着されて木材等の被切削材を切断する際に使用されるチップソーの製造方法に関する。The present invention relates to a method for manufacturing a tip saw used when a tip is fixed to an outer peripheral edge of a base metal to cut a material to be cut such as wood.

従来、円板状の台金の外周縁部に、超硬合金製のチップがロー付け固着されたチップソーは、例えば特許文献１に開示されている。このチップソーは、台金の外周縁部に、刃室が一定間隔で多数形成されると共にこの刃室間にチップ固着部が形成され、各チップ固着部に超硬合金製のチップがそれぞれロー付け固着されている。 Conventionally, a tipped saw in which a tip made of cemented carbide is brazed and fixed to an outer peripheral edge portion of a disk-shaped base metal is disclosed in, for example, Patent Document 1. In this tip saw, a large number of blade chambers are formed at regular intervals on the outer peripheral edge of the base metal, and chip fixing portions are formed between the blade chambers, and cemented carbide chips are brazed to each chip fixing portion. It is stuck.

特開２０１１－１６１８１９号公報Japanese Unexamined Patent Publication No. 2011-161819

しかしながら、このようなチップソーにおいては、製造段階における台金の研磨や加工、チップの研磨あるいは台金の仕上げ処理等において、台金に重量のバランス不良が発生する場合がある。すなわち、台金の研磨や台金の塗装面の塗料の膜厚等を均一に行うことが困難であったり、台金をプレス加工またはレーザー加工で加工する際に中心からの軸位置がズレたり、台金の取付穴を加工する際に中心軸がズレることがある。また、仕上げ処理においてシルクマークを印刷する際に、インク重量が台金の表面で均一でない場合もある。 However, in such a tip saw, an imbalance in weight may occur in the base metal in polishing and processing of the base metal, polishing of the tip, finishing process of the base metal, and the like in the manufacturing stage. That is, it is difficult to polish the base metal and uniformly apply the thickness of the paint on the painted surface of the base metal, or the shaft position from the center shifts when the base metal is pressed or laser-processed. , The central axis may shift when machining the mounting hole of the base metal. Further, when printing the silk mark in the finishing process, the ink weight may not be uniform on the surface of the base metal.

その結果、製造されたチップソーに重量のバランス不良が発生し易く、このチップソーを切断機に取り付けて例えば被切削材としての木材を切断すると、回転時に台金に振動が発生し、この振動が作業者に伝達されて作業者の負担や不安を増加させたり、振動で被切削材の切断面が粗くなり易い。また、振動が刃としての各チップに作用して、切断時のチップ自体への負担も大きくなり、チップソーの刃（チップ）の摩耗が早くなると共に、チップソーの振動により切断機自体の主軸も痛み易い。これらのことから、前記チップソーの場合、作業者に振動等による負担や不安を与えることなく良好な切断面が得られる切断作業を容易に行うことが困難であると共に、長期に亘り安定した切断性能等を得ることも難しい。 As a result, the weight of the manufactured tipped saw is likely to be imbalanced, and when this tipped saw is attached to a cutting machine to cut wood as a material to be cut, for example, vibration is generated in the base metal during rotation, and this vibration works. It is transmitted to the person and increases the burden and anxiety of the operator, and the cut surface of the material to be cut tends to become rough due to vibration. In addition, the vibration acts on each tip as a blade, which increases the burden on the tip itself during cutting, which accelerates the wear of the tip of the tip saw, and the vibration of the tip saw also causes pain in the spindle of the cutting machine itself. easy. For these reasons, in the case of the tip saw, it is difficult to easily perform a cutting operation in which a good cut surface can be obtained without giving a burden or anxiety to the operator due to vibration or the like, and stable cutting performance for a long period of time is achieved. It is also difficult to obtain such things.

本発明は、このような事情に鑑みてなされたもので、その目的は、重量のバランス不良を解消して、作業者に負担や不安を与えることなく良好な切断面が得られる切断作業を容易に行うことが可能であると共に、長期に亘り安定した切断性能を得ることが可能なチップソーの製造方法を提供することにある。The present invention has been made in view of such circumstances, and an object of the present invention is to facilitate a cutting operation in which a good cut surface can be obtained without giving a burden or anxiety to an operator by eliminating an imbalance in weight. It is an object of the present invention to provide a method for manufacturing a tip saw capable of obtaining stable cutting performance over a long period of time.

かかる目的を達成すべく、本発明のうち請求項１に記載の発明は、円板状の台金の中心位置に取付穴を形成すると共にその外周縁部に所定間隔でチップ固着部を形成する台金成形工程と、前記台金成形工程で得られた台金のチップ固着部にチップをそれぞれ固着するチップ固着工程と、前記チップ固着工程で固着されたチップを研磨するチップ研磨工程と、前記チップ研磨工程で得られた台金の外周縁部のバランス不良位置に偏重量に応じた重量バランス調整手段を設けて当該台金の重量バランスを調整する重量バランス調整工程と、を備え、
前記重量バランス調整工程は、バランス計測治具に回転自在に取り付けた台金を垂直状態で回転させ、回転停止した状態の台金の外周縁部下部をバランス不良位置として計測した後に、前記外周縁部下部と直径方向反対側の外周縁部に所定重量の錘を取り付けて回転させ、当該台金が水平位置で停止する前記錘の重量を前記偏重量として計測するバランス量計測工程と、前記バランス量計測工程で計測された台金のバランス不良位置に前記重量バランス調整手段としての所定面積の開口を加工するバランス量加工工程と、を備えることを特徴とする。 In order to achieve such an object, the invention according to claim 1 of the present invention forms a mounting hole at the center position of a disk-shaped base metal and forms chip fixing portions at predetermined intervals on the outer peripheral edge portion thereof. The base metal forming step, the chip fixing step of fixing the chip to the chip fixing portion of the base metal obtained in the base metal forming step, the chip polishing step of polishing the chip fixed in the chip fixing step, and the above-mentioned A weight balance adjusting step of providing a weight balance adjusting means according to an unbalanced weight at an unbalanced position on the outer peripheral edge of the base metal obtained in the chip polishing step to adjust the weight balance of the base metal is provided.
In the weight balance adjusting step, the base metal rotatably attached to the balance measuring jig is rotated in a vertical state, and the lower portion of the outer peripheral edge portion of the base metal in a stopped rotation state is measured as an imbalanced position, and then the outer peripheral edge is measured. A balance amount measuring step in which a weight of a predetermined weight is attached to the lower portion and an outer peripheral edge portion on the opposite side in the radial direction and rotated, and the weight of the weight at which the base metal stops at a horizontal position is measured as the unbalanced weight, and the balance. It is characterized by comprising a balance amount processing step of processing an opening of a predetermined area as the weight balance adjusting means at a position of imbalance of the base metal measured in the amount measurement step.

また、請求項２に記載の発明は、前記バランス計測治具は、水平な基台上に立設された支柱と、前記支柱の上部に配設されて前記台金の取付穴を回転自在に支持する支持手段を備えることを特徴とする。Further, according to the second aspect of the present invention, the balance measuring jig is arranged on a support column erected on a horizontal base and is arranged on the upper part of the support column so that the mounting hole of the base metal can be rotated. It is characterized by providing a supporting means for supporting .

本発明のうち請求項１に記載の発明によれば、台金成形工程、チップ固着工程、チップ研磨工程、及びチップが固着された台金の重量バランス量に応じた重量バランス用の開口を設けて当該台金の重量バランスを調整する重量バランス調整工程を備えるため、重量バランス調整工程で台金の重量のバランス不良を解消して回転時の台金の振動を抑制でき、作業者に振動による負担や不安を与えることなく良好な切断面が得られる切断作業が容易に行えると共に、長期に亘り安定した切断性能のチップソーを得ることができる。According to the invention according to claim 1 of the present invention, an opening for weight balance according to the base metal forming step, the chip fixing step, the chip polishing step, and the weight balance amount of the base metal to which the chip is fixed is provided. Since the weight balance adjustment process for adjusting the weight balance of the base metal is provided, it is possible to eliminate the imbalance of the weight of the base metal in the weight balance adjustment process and suppress the vibration of the base metal during rotation. It is possible to easily perform a cutting operation in which a good cut surface can be obtained without giving a burden or anxiety, and it is possible to obtain a tip saw having stable cutting performance for a long period of time.

また、重量バランス調整工程が、バランス計測治具に垂直状態で回転自在に支持された台金のバランス不良位置と偏重量とを計測するバランス量計測工程と、バランス量計測工程で計測された台金のバランス不良位置に偏重量に応じた所定面積の開口を加工するバランス量加工工程を備えるため、バランス計測治具でバランス不良位置と偏重量を確実かつ簡単に計測して開口を加工でき、重量バランスの良好なチップソーを容易に得ることができる。In addition, the weight balance adjustment process is a balance amount measurement process that measures the unbalanced position and unbalanced weight of the base metal that is rotatably supported vertically to the balance measurement jig, and a table that is measured in the balance amount measurement process. Since it is equipped with a balance amount processing process that processes an opening of a predetermined area according to the unbalanced weight at the unbalanced position of gold, it is possible to reliably and easily measure the unbalanced position and unbalanced weight with a balance measuring jig and process the opening. A tip saw with a good weight balance can be easily obtained.

さらに、バランス量計測工程が、バランス計測治具に回転自在に取り付けた台金を回転させ、回転停止した状態の台金の外周縁部下部をバランス不良位置として計測した後に、外周縁部下部と直径方向反対側の外周縁部に所定重量の錘を取り付けて回転させ、当該台金が水平位置で停止する錘の重量を偏重量として計測するため、バランス不良位置と偏重量を一層確実かつ簡単に計測できて、重量バランスの一層良好なチップソーを容易に得ることができる。 Further, in the balance amount measurement process , the base metal rotatably attached to the balance measurement jig is rotated, and the lower part of the outer peripheral edge portion of the base metal in a stopped rotation state is measured as an imbalanced position, and then the lower part of the outer peripheral edge portion is measured. A weight of a predetermined weight is attached to the outer peripheral edge on the opposite side in the radial direction and rotated, and the weight of the weight at which the base metal stops at the horizontal position is measured as an eccentric weight. It is possible to easily obtain a tip saw having a better weight balance.

また、請求項２に記載の発明によれば、請求項１に記載の発明の効果に加え、バランス計測治具が、水平な基台上に立設された支柱と、支柱の上部に配設されて台金の取付穴を回転自在に支持する支持手段を備えるため、バランス計測治具の構成を簡略化しつつバランス調整作業自体を一層簡単に行うことができる。 Further, according to the invention of claim 2 , in addition to the effect of the invention of claim 1 , a balance measuring jig is arranged on a support column erected on a horizontal base and on an upper portion of the support column. Since the support means for rotatably supporting the mounting hole of the base metal is provided, the balance adjustment work itself can be performed more easily while simplifying the configuration of the balance measuring jig.

本発明に係わる製造方法で製造されたチップソーの一実施形態を示す平面図A plan view showing an embodiment of a tipped saw manufactured by the manufacturing method according to the present invention. 同図１の要部の側面図Side view of the main part of FIG. 同図１のＡ－Ａ線に沿った断面図Sectional drawing along the line AA of FIG. 同チップソーの製造方法の一例を示す工程図Process diagram showing an example of the manufacturing method of the tip saw 同その重量バランス調整工程の工程図The process diagram of the weight balance adjustment process 同バランス計測治具の正面図Front view of the balance measuring jig 同その側面図The same side view

以下、本発明を実施するための形態を図面に基づいて詳細に説明する。
図１～図３は、本発明に係わる製造方法で製造されたチップソーの一実施形態を示している。図１に示すように、チップソー１は、炭素鋼板等をプレス加工することで円板状に形成されると共に中心位置に切断機（図示せず）への取付穴３が形成された台金２を有している。この台金２の外周縁部２ａには、取付穴３方向に窪んだ刃室４と段差もしくは凹部からなるチップ固着部５が例えば円周方向に一定間隔で多数設けられ、前記各チップ固着部５には、例えば超硬合金からなるチップ６がそれぞれロー付け固着されている。Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
1 to 3 show an embodiment of a tipped saw manufactured by the manufacturing method according to the present invention. As shown in FIG. 1, the tip saw 1 is formed into a disk shape by pressing a carbon steel plate or the like, and a base metal 2 having a mounting hole 3 for a cutting machine (not shown) formed at a center position. have. The outer peripheral edge portion 2a of the base metal 2 is provided with a large number of chip fixing portions 5 composed of a blade chamber 4 recessed in the mounting hole 3 direction and a step or a recess, for example, at regular intervals in the circumferential direction. For example, chips 6 made of cemented carbide are brazed and fixed to 5.

前記チップ６は、チップ固着部５の平面視形状に対応した平面視略Ｌ字形状もしくは略Ｕ字形状の固着面６ａと、この固着面６ａの両先端部に連設されたすくい面６ｂ及び先端面６ｃと、板厚方向両側の側面６ｄとで形成されている。また、チップ６の両側面６ｄには、例えば図２及び図３に示すように、必要に応じて所定のあさり寸法が設定されている。なお、このチップ６の固着面６ａ、すくい面６ｂ、先端面６ｃ及びあさり寸法の形状等は一例であって、例えばあさり寸法をゼロ（０）とする等、被切削材の種類等に応じて適宜に設定される。 The chip 6 has a substantially L-shaped or substantially U-shaped fixing surface 6a corresponding to the plan view shape of the chip fixing portion 5, and a rake surface 6b connected to both tip portions of the fixing surface 6a. It is formed by a tip surface 6c and side surfaces 6d on both sides in the plate thickness direction. Further, as shown in FIGS. 2 and 3, for example, predetermined ashes dimensions are set on both side surfaces 6d of the chip 6 as needed. The shape of the fixing surface 6a, the rake surface 6b, the tip surface 6c, and the ashes dimension of the tip 6 is an example, and the ashes dimension is set to zero (0), depending on the type of the material to be cut. It is set appropriately.

前記台金２の外周縁部２ａで十字方向の４カ所には、図１に示すように、前記刃室４の底部から取付穴３方向に向けてスリット７が形成され、このスリット７の最深部にはスリット幅より大きな円形部が連設されている。このスリット７により切断時の台金２（チップソー１）の振動が抑制されるようになっている。なお、スリット７は、被切削材の種類や台金２の外径あるいはチップ６の固着形態やその個数等によって省略することも勿論可能である。 As shown in FIG. 1, slits 7 are formed at four points in the cross direction on the outer peripheral edge portion 2a of the base metal 2 from the bottom portion of the blade chamber 4 toward the mounting hole 3, and the deepest of the slits 7. A circular portion larger than the slit width is continuously provided in the portion. The slit 7 suppresses the vibration of the base metal 2 (tip saw 1) at the time of cutting. Of course, the slit 7 can be omitted depending on the type of the material to be cut, the outer diameter of the base metal 2, the fixing form of the chips 6, and the number thereof.

また、前記台金２の外周縁部２ａの所定位置には、図１及び図３に示すように、所定内径（所定面積）の円形の一つの開口８が形成されている。この開口８は、台金２の重量バランスを調整するもので、後述する方法により計測されたバランス不良位置Ｐ１に偏重量（台金２の重量の最も重い側とその直径方向反対側の重量差）に応じた内径φで形成されている。この開口８により、台金２すなわちチップソー１の重量バランス不良が解消されることになる。なお、本発明においては、説明の便宜上、開口８が加工されていない素材を台金２と定義し、開口８が加工された製品をチップソー１と定義する。 Further, as shown in FIGS. 1 and 3, one circular opening 8 having a predetermined inner diameter (predetermined area) is formed at a predetermined position on the outer peripheral edge portion 2a of the base metal 2. This opening 8 adjusts the weight balance of the base metal 2, and has an eccentric weight (weight difference between the heaviest side of the base metal 2 and the opposite side in the diameter direction) to the unbalanced position P1 measured by the method described later. ) Is formed with an inner diameter φ. The opening 8 eliminates the improper weight balance of the base metal 2, that is, the tip saw 1. In the present invention, for convenience of explanation, the material in which the opening 8 is not processed is defined as the base metal 2, and the product in which the opening 8 is processed is defined as the tip saw 1.

次に、前記チップソー１の製造方法の一例を、図４～図７に基づいて説明する。先ず、図４に示すように、チップソー１は、炭素鋼板をプレス加工すること等により、円板状で中心位置に取付穴３が形成されると共に、外周縁部２ａに刃室４とチップ固着部５が形成された台金２をプレス成形（Ｋ０１）し、この台金２を焼入れ及び焼鈍し等する熱処理（Ｋ０２）を行う。 Next, an example of the method for manufacturing the tip saw 1 will be described with reference to FIGS. 4 to 7. First, as shown in FIG. 4, the tip saw 1 is formed by pressing a carbon steel plate or the like to form a mounting hole 3 at the center position in a disk shape, and the blade chamber 4 and the tip are fixed to the outer peripheral edge portion 2a. The base metal 2 on which the portion 5 is formed is press-molded (K01), and the base metal 2 is subjected to heat treatment (K02) such as quenching and annealing.

工程Ｋ０２で台金２の熱処理が終了したら、台金２の取付穴３のリーマ加工や台金２の両面（表面及び裏面）を研磨する台金研磨等（Ｋ０３）を行い、その後、研磨等された台金２の各チップ固着部５に、予め所定形状に形成されたチップ６をそれぞれロー付け（Ｋ０４）して固着する。次に、このチップ６がロー付けされた台金２の両面に、必要に応じて例えばフッソ樹脂等で所定色の塗装（Ｋ０５）を施して台金２の素材色を隠蔽する。 After the heat treatment of the base metal 2 is completed in the step K02, reamer processing of the mounting hole 3 of the base metal 2 and polishing of the base metal (K03) for polishing both sides (front surface and back surface) of the base metal 2 are performed, and then polishing etc. Chips 6 formed in advance in a predetermined shape are brazed (K04) and fixed to each chip fixing portion 5 of the base metal 2. Next, both sides of the base metal 2 to which the chips 6 are brazed are coated with a predetermined color (K05), for example, with a fluorine resin or the like, if necessary, to conceal the material color of the base metal 2.

そして、樹脂塗料が乾燥した後に、チップ６の研磨（Ｋ０６）を行う。この研磨は、例えばチップ６の側面６ｄ研磨、すくい面６ｂ研磨、先端面６ｃ研磨等で行われる。工程Ｋ０６でチップ６の研磨が終了したら、必要に応じて台金２の表面にシルクマークを印刷する等の仕上げ処理（Ｋ０７）を行い、次に、重量バランス調整（Ｋ０８：重量バランス調整工程）を行う。この重量バランス調整は、次のようにして行われる。 Then, after the resin paint is dried, the chip 6 is polished (K06). This polishing is performed, for example, by polishing the side surface 6d of the chip 6, polishing the rake surface 6b, polishing the tip surface 6c, and the like. After the polishing of the chip 6 is completed in the step K06, a finishing process (K07) such as printing a silk mark on the surface of the base metal 2 is performed as necessary, and then the weight balance adjustment (K08: weight balance adjustment step) is performed. I do. This weight balance adjustment is performed as follows.

先ず、工程Ｋ０８の重量バランス調整は、図６及び図７に示すバランス計測治具１０を使用する。このバランス計測治具１０は、平板状の基台１１と、この基台１１上に立設された支柱１２を有し、支柱１２の上部には、支持手段としての軸受け１３が配設されている。このとき軸受け１３は、限りなく無抵抗な状態のベアリング（図示せず）を有し、その中心軸１３ａの先端には台金２を挟持可能もしくは着脱可能に支持可能な支持板１４等が取り付けられている。そして、図６及び図７の二点鎖線で示すように、支持板１４で台金２の取付穴３部分を垂直に支持した状態において、取り付けられた台金２が、軸受け１３により矢印イ方向に回転自在となるように構成されている。 First, the weight balance adjustment in step K08 uses the balance measuring jig 10 shown in FIGS. 6 and 7. The balance measuring jig 10 has a flat plate-shaped base 11 and a support column 12 erected on the base table 11, and a bearing 13 as a support means is arranged on the upper portion of the support column 12. There is. At this time, the bearing 13 has a bearing (not shown) in an infinitely non-resistive state, and a support plate 14 or the like capable of sandwiching or detachably supporting the base metal 2 is attached to the tip of the central shaft 13a thereof. Has been done. Then, as shown by the two-dot chain line in FIGS. 6 and 7, the mounted base metal 2 is vertically supported by the support plate 14 with the mounting hole 3 portion of the base metal 2 in the direction of arrow A by the bearing 13. It is configured to be rotatable.

次に、このバランス計測治具１０を使用した前記工程Ｋ０８の重量バランス調整の具体的な方法を図５に基づいて説明する。工程Ｋ０７で仕上げ処理が行われると、仕上げ処理された台金２をバランス計測治具１０に取り付ける（Ｋ０８１）。この取り付けは、バランス計測治具１０の支持板１４で台金２の取付穴３部分を軸受け１３で支持することで行われ、この状態において、取り付けられた台金２は軸受け１３の中心軸１３ａに垂直状態で回転自在に支持されている。 Next, a specific method of weight balance adjustment in the step K08 using the balance measuring jig 10 will be described with reference to FIG. When the finishing process is performed in the process K07, the finished base metal 2 is attached to the balance measuring jig 10 (K081). This mounting is performed by supporting the mounting hole 3 portion of the base metal 2 with the bearing 13 with the support plate 14 of the balance measuring jig 10. In this state, the mounted base metal 2 is the central shaft 13a of the bearing 13. It is rotatably supported in a vertical state.

台金２をバランス計測治具１０に支持させたら、台金２を図６の矢印イ方向に軽く回転（Ｋ０８２）させる。この回転により、台金２に重量のバランス不良があると、台金２の重量の最も重い側が下側となって停止する。この台金２の停止により、図６に示す台金２の下部側が前述したバランス不良位置Ｐ１として計測されることになる。なお、バランス不良位置Ｐ１の台金２の直径方向反対側の位置（図６のＰ１と直径方向反対側の台金の外周縁部の上部の位置）の設定（錘１５を取り付ける位置の設定）は、偏重量に効果的に対応可能なできるだけ外周縁部２ａ側が好ましい。また、工程Ｋ０８２における台金２の回転は、台金２の偏重量が大きい場合は、バランス計測治具１０に支持させるだけで台金２が自動的に回転するが、偏重量が小さい場合には、手動で強制的に回転させることが好ましい。 After the base metal 2 is supported by the balance measuring jig 10, the base metal 2 is lightly rotated (K082) in the direction of arrow a in FIG. Due to this rotation, if the base metal 2 has an imbalance in weight, the heaviest side of the base metal 2 becomes the lower side and stops. By stopping the base metal 2, the lower side of the base metal 2 shown in FIG. 6 is measured as the above-mentioned imbalanced position P1. It should be noted that the setting of the position on the opposite side of the base metal 2 of the unbalanced position P1 in the diameter direction (the position of the upper part of the outer peripheral edge portion of the base metal on the opposite side in the diameter direction from P1 in FIG. 6) (setting of the position where the weight 15 is attached). Is preferably on the outer peripheral edge portion 2a side as much as possible that can effectively cope with the unbalanced weight. Further, in the rotation of the base metal 2 in the step K082, when the unbalanced weight of the base metal 2 is large, the base metal 2 is automatically rotated only by being supported by the balance measuring jig 10, but when the unbalanced weight is small. Is preferably manually forcibly rotated.

工程Ｋ０８２でバランス不良位置Ｐ１が計測されたら、次に、計測されたバランス不良位置Ｐ１の台金２の前述した直径方向反対側の位置に、例えばマグネット等の所定重量の錘１５を取り付ける（Ｋ０８３）。このときの錘１５の重量は仮の重さであり、この仮の錘１５を取り付けた状態の台金２を回転させて錘１５を図６の水平線Ｌの位置に設定、すなわち台金２の錘１５部分を水平状態にセット（Ｋ０８４）する。 After the imbalanced position P1 is measured in the step K082, next, a weight 15 having a predetermined weight such as a magnet is attached to the position on the opposite side of the base metal 2 of the measured imbalanced position P1 in the diametrical direction (K083). ). The weight of the weight 15 at this time is a temporary weight, and the base metal 2 with the temporary weight 15 attached is rotated to set the weight 15 at the position of the horizontal line L in FIG. 6, that is, the base metal 2. Set the weight 15 part in the horizontal state (K084).

そして、この水平状態が所定時間維持されるかどうかを判断（Ｋ０８５）し、この判断Ｋ０８５で「ＮＯ」の場合、すなわち水平状態が維持されず台金２が回転してバランス不良位置Ｐ１が再び下側となって停止した場合は、バランス不良位置Ｐ１に取り付けられている仮の錘１５を別の錘１５に交換・調整（Ｋ０８６）する。この時の錘１５は、仮の錘１５よりその重量が重いものとなる。この錘１５の交換（調整）を、台金２のバランス不良程度（偏重量に相当）に応じて所定回数繰り返すことで台金２の水平状態が維持されたら、判断Ｋ０８５で「ＹＥＳ」になると共に、そのときの錘１５の重量が偏重量として計測されることになる。この工程Ｋ０８１～工程Ｋ０８６が本発明のバランス量計測工程となる。 Then, it is determined whether or not this horizontal state is maintained for a predetermined time (K085), and if the determination K085 is "NO", that is, the horizontal state is not maintained, the base metal 2 rotates, and the unbalanced position P1 is again. If it stops on the lower side, the temporary weight 15 attached to the imbalanced position P1 is replaced / adjusted (K086) with another weight 15. The weight 15 at this time is heavier than the temporary weight 15. If the horizontal state of the base metal 2 is maintained by repeating the replacement (adjustment) of the weight 15 a predetermined number of times according to the degree of imbalance of the base metal 2 (corresponding to the unbalanced weight), the judgment K085 becomes "YES". At the same time, the weight of the weight 15 at that time is measured as an eccentric weight. The steps K081 to K086 are the balance amount measuring steps of the present invention.

判断Ｋ０８５で「ＹＥＳ」になったら、計測された錘１５の重量に応じて、開口８の内径φを算出（Ｋ０８７）する。この内径φの算出は、例えば水平線Ｌ位置でバランスされた際の錘１５の重量が１ｇの場合、台金２の板厚及び材質等から１ｇに相当する開口面積となる内径φとして容易に算出できる。開口８の内径φが算出されたら、バランス計測治具１０から取り外された台金２の工程Ｋ０８２で計測されたバランス不良位置Ｐ１に、算出された内径φの円形の開口８をドリルやレーザー加工で加工（穿設）する（Ｋ０８８）。これにより、重量バランス調整工程Ｋ０８が終了し、図４の工程Ｋ０９に移行する。この工程Ｋ０８７と工程Ｋ０８８が本発明のバランス量加工工程となる。 When the determination K085 is "YES", the inner diameter φ of the opening 8 is calculated (K087) according to the measured weight of the weight 15. For example, when the weight of the weight 15 when balanced at the horizontal line L position is 1 g, the inner diameter φ is easily calculated as the inner diameter φ having an opening area corresponding to 1 g from the plate thickness and material of the base metal 2. can. After the inner diameter φ of the opening 8 is calculated, the circular opening 8 having the calculated inner diameter φ is drilled or laser-machined at the unbalanced position P1 measured in the process K082 of the base metal 2 removed from the balance measuring jig 10. Processing (drilling) with (K088). As a result, the weight balance adjusting step K08 is completed, and the process shifts to the step K09 of FIG. This step K087 and step K088 are the balance amount processing steps of the present invention.

そして、図４に示すように、工程Ｋ０８の重量バランス調整が終了した台金２は、必要に応じて開口８部分に防塵剤等を塗布して、外観チェックやチップ保護チューブの装着等の最終的な製品検査（Ｋ０９）を行い、これにより本発明のチップソー１が完成（Ｋ０１０）することになる。つまり、本発明に係わるチップソー１は、従来では完成品が得られる仕上げ処理の最後に、個々の完成品に重量バランス調整工程を追加することで、完成品としての個々のチップソー１の重量バランスの不良を解消するようにしている。 Then, as shown in FIG. 4, the base metal 2 for which the weight balance adjustment in the step K08 has been completed is applied with a dustproof agent or the like to the opening 8 portion as necessary, and the final appearance check and the mounting of the chip protection tube and the like are completed. Product inspection (K09) is performed, whereby the tip saw 1 of the present invention is completed (K010). That is, in the tipped saw 1 according to the present invention, the weight balance of each tipped saw 1 as a finished product is adjusted by adding a weight balance adjusting step to each finished product at the end of the finishing process in which the finished product is conventionally obtained. I try to eliminate the defects.

その結果、チップソー１の製造段階の例えば、台金２のプレス成形時の中心からの軸のズレ、台金２の研磨時のバラツキや取付穴３の加工バラツキ、台金２の塗装面の膜厚のバラツキ、各チップ６の研磨時のバラツキ、シルクマークのインク重量の円板上でのバラツキ等があったとしても、これらのバラツキやズレによるチップソー１の重量のアンバランスが簡単かつ確実に解消されることになる。 As a result, for example, in the manufacturing stage of the tip saw 1, the shaft is displaced from the center during press molding of the base metal 2, the variation during polishing of the base metal 2, the processing variation of the mounting hole 3, and the film on the painted surface of the base metal 2. Even if there are variations in thickness, variations during polishing of each chip 6, variations in the ink weight of the silk mark on the disk, etc., the imbalance in the weight of the tip saw 1 due to these variations and deviations is easy and reliable. It will be resolved.

なお、以上説明した製造方法の各工程は一例であって、被切削材の種類等に応じて、一部の工程を省略したり、その順番を入れ替える等、適宜に変更することができる。また、重量バランス調整も、前述した方法に限定されず、例えばバランス不良位置Ｐ１や偏重量の計測を、他の方法で行うこともできるし、これらの全ての工程もしくは一部の工程を自動化（機械化）することも勿論可能である。 It should be noted that each step of the manufacturing method described above is an example, and some steps can be omitted or the order thereof can be changed as appropriate depending on the type of the material to be cut and the like. Further, the weight balance adjustment is not limited to the above-mentioned method, and for example, the imbalanced position P1 and the unbalanced weight can be measured by another method, and all or some of these processes are automated (). Of course, it is also possible to mechanize.

このように、本発明の前記チップソー１によれば、取付穴３が形成されると共にチップ６が固着された台金２の外周縁部２ａに、台金２の偏重量に応じて設けられた重量バランス調整手段としての所定面積の開口８を備えるため、開口８で台金２の重量のバランス不良を解消して台金２の回転時の振動を効果的に抑制でき、作業者に台金２の振動による負担や不安を与えることなく良好な切断面（綺麗な切断面）が得られる切断作業を容易に行うことができると共に、チップソー１や切断機に長期に亘る安定した切断性能を維持することができる。 As described above, according to the tip saw 1 of the present invention, the mounting hole 3 is formed and the tip 6 is fixed to the outer peripheral edge portion 2a of the base metal 2 according to the unbalanced weight of the base metal 2. Since the opening 8 having a predetermined area is provided as a weight balance adjusting means, the imbalance of the weight of the base metal 2 can be eliminated by the opening 8 and the vibration during the rotation of the base metal 2 can be effectively suppressed, and the base metal can be used by the operator. It is possible to easily perform cutting work that can obtain a good cut surface (clean cut surface) without giving a burden or anxiety due to the vibration of 2, and maintain stable cutting performance for a long period of time on the tip saw 1 and cutting machine. can do.

特に、重量バランス調整手段が、台金２に加工された例えば所定内径φの円形の一つの開口８であるため、重量バランス調整手段の構成を簡略化したり、開口８で台金２自体の軽量化を図ることができると共に、外周縁部２ａに開口８を形成することで、開口８の面積を極力小さくして、台金２自体の外周縁部２ａにおける強度低下を防止することもできる。 In particular, since the weight balance adjusting means is, for example, one circular opening 8 having a predetermined inner diameter φ processed into the base metal 2, the configuration of the weight balance adjusting means can be simplified, or the opening 8 can be used to reduce the weight of the base metal 2 itself. By forming the opening 8 in the outer peripheral edge portion 2a, the area of the opening 8 can be made as small as possible, and the strength of the base metal 2 itself can be prevented from being lowered in the outer peripheral edge portion 2a.

また、開口８が、台金２をバランス計測治具１０に垂直状態で回転自在に支持することで計測されたバランス不良位置Ｐ１と偏重量に基づいて加工されるため、バランス計測治具１０で台金２の重量バランスの調整を確実かつ簡単に行うことができる。さらに、バランス計測治具１０が、水平な基台１１上に立設された支柱１２と、支柱１２の上部に配設されて台金２の取付穴３を回転自在に支持する軸受け１３を備えるため、バランス計測治具１０の構成を簡略化しつつバランス調整作業自体を簡単に行うことができて、チップソー１のコストアップを極力抑えることができる。 Further, since the opening 8 is machined based on the imbalanced position P1 and the eccentric weight measured by rotatably supporting the base metal 2 in a vertical state to the balance measuring jig 10, the balance measuring jig 10 is used. The weight balance of the base metal 2 can be adjusted reliably and easily. Further, the balance measuring jig 10 includes a support column 12 erected on the horizontal base 11 and a bearing 13 disposed on the upper part of the support column 12 to rotatably support the mounting hole 3 of the base metal 2. Therefore, the balance adjusting work itself can be easily performed while simplifying the configuration of the balance measuring jig 10, and the cost increase of the tip saw 1 can be suppressed as much as possible.

これらのことから、例えばロット生産されるチップソー１において、個々のチップソー１の重量バランスを調整して、均一バランス（重量アンバランスのないチップソー１）に設定できると共に、前述した台金２（チップソー１）の製造時の各工程における作業のバラツキやズレがあったとしても、前記各工程における精度を従来以上に高めることなくバラツキやズレ等の影響を簡単かつ確実に解消できて、開口８の加工追加による製造コストのアップをカバーしつつ、手作り的でかつ物作りへの信頼性を高めた高品質のチップソー１を得ることが可能になる。 From these facts, for example, in the tipped saw 1 produced in lots, the weight balance of each tipped saw 1 can be adjusted to set a uniform balance (tipped saw 1 without weight imbalance), and the base metal 2 (tipped saw 1) described above can be set. ), Even if there are variations or deviations in the work in each process during manufacturing, the effects of variations or deviations can be easily and surely eliminated without increasing the accuracy in each process more than before, and the opening 8 is processed. It is possible to obtain a high-quality tipped saw 1 that is handmade and has improved reliability for manufacturing while covering the increase in manufacturing cost due to the addition.

また、本発明のチップソー１の製造方法によれば、チップ固着工程でチップ６が固着された台金２の偏重量に応じて、当該台金２の重量バランスを調整する重量バランス調整工程を備えるため、重量バランス調整工程で台金２の重量のバランス不良を解消して台金２の回転時の振動を抑制でき、作業者に振動による負担や不安を与えることなく良好な切断面が得られる切断作業を容易に行うことができると共に、長期に亘り安定した切断性能を得ることが可能なチップソーや切断機を得ることができる。 Further, according to the method for manufacturing the tip saw 1 of the present invention, a weight balance adjusting step of adjusting the weight balance of the base metal 2 according to the unbalanced weight of the base metal 2 to which the chip 6 is fixed is provided in the chip fixing step. Therefore, in the weight balance adjustment process, the imbalance of the weight of the base metal 2 can be eliminated and the vibration during the rotation of the base metal 2 can be suppressed, and a good cut surface can be obtained without giving the operator a burden or anxiety due to the vibration. It is possible to obtain a tipped saw or a cutting machine capable of easily performing a cutting operation and obtaining stable cutting performance for a long period of time.

また、重量バランス調整工程が、バランス計測治具１０に垂直状態で回転自在に支持された台金２のバランス不良位置Ｐ１と偏重量とを計測するバランス計測工程と、バランス計測工程で計測された台金２のバランス不良位置Ｐ１に偏重量に応じた開口８を加工するバランス量加工工程を備えるため、バランス計測治具１０でバランス不良位置Ｐ１と偏重量を確実かつ簡単に計測しつつ開口８を加工できて、重量バランスの良好なチップソー１を容易に製造することができる。 Further, the weight balance adjustment process was measured in the balance measurement process for measuring the unbalanced position P1 and the unbalanced weight of the base metal 2 rotatably supported by the balance measurement jig 10 in a vertical state, and the balance measurement process. Since the balance amount processing step of processing the opening 8 according to the unbalanced weight is provided at the unbalanced position P1 of the base metal 2, the opening 8 is surely and easily measured with the unbalanced position P1 and the unbalanced weight by the balance measuring jig 10. Can be processed, and a tip saw 1 having a good weight balance can be easily manufactured.

また、バランス不良位置Ｐ１が、バランス計測治具１０に回転自在に取り付けられた台金２を垂直面内で偏重量に応じて回転させ、回転が停止した状態の台金２の外周縁部２ａ下部をバランス不良位置Ｐ１として計測すると共に、バランス不良位置Ｐ１と直径方向反対側の台金２の外周縁部２ａ下部に所定重量の錘１５を取り付けて回転させ、当該台金２が水平位置で停止する前記錘１５の重量を偏重量として計測するため、バランス不良位置Ｐ１と偏重量を一層確実かつ簡単に計測できて、重量バランスの一層良好なチップソー１を容易に製造することができる。 Further, the imbalanced position P1 rotates the base metal 2 rotatably attached to the balance measuring jig 10 according to the eccentric weight in the vertical plane, and the outer peripheral edge portion 2a of the base metal 2 in a state where the rotation is stopped. The lower part is measured as the unbalanced position P1, and a weight 15 having a predetermined weight is attached to the lower part of the outer peripheral edge portion 2a of the base metal 2 on the opposite side of the unbalanced position P1 in the radial direction and rotated so that the base metal 2 is in the horizontal position. Since the weight of the weight 15 to be stopped is measured as an eccentric weight, the imbalanced position P1 and the eccentric weight can be measured more reliably and easily, and the tip saw 1 having a better weight balance can be easily manufactured.

そして、このような本発明の効果は、本件出願人が平成２８年５月１９日付けで特許出願した整理番号ＴＧＰ００３６に記載のチップソーにおいて、顕著な効果が得られることが確認されている。このチップソーは、中心位置に取付孔が形成された円盤状の台金と、該台金の外周縁部に形成した複数のチップ固着部に固着されたチップと、を備え、前記台金は、所定板厚の本体部と、該本体部の外周側に当該本体部の板厚より薄く一体形成され複数の刃室と前記チップ固着部が形成された刃部を有し、前記チップは、その刃先が前記台金の左右側面に向けて傾斜する左刃用と右刃用を有し、これらの各刃が前記刃部のチップ固着部に所定の形態で固着されていることを特徴とするものである。 It has been confirmed that such an effect of the present invention can be remarkably obtained in the tip saw described in the reference number TGP0036 filed by the applicant on May 19, 2016 for a patent. This tip saw includes a disk-shaped base metal having a mounting hole formed at a central position, and chips fixed to a plurality of chip fixing portions formed on the outer peripheral edge portion of the base metal. It has a main body portion with a predetermined plate thickness and a blade portion integrally formed on the outer peripheral side of the main body portion thinner than the plate thickness of the main body portion to form a plurality of blade chambers and the chip fixing portion. It has a left blade and a right blade whose cutting edge is inclined toward the left and right side surfaces of the base metal, and each of these blades is fixed to the tip fixing portion of the blade portion in a predetermined form. It is a thing.

なお、前記実施形態においては、重量バランス調整手段が一つの円形の開口８である場合について説明したが、本発明はこれに限定されず、例えば開口８を重量の重い外周縁部２ａの所定範囲内に複数個設けても良いし、台金２に軽量化の目的で軽量穴が設けられている場合で、この軽量穴のいずれかがバランス不良位置Ｐ１に該当する場合は、当該軽量穴の内径を拡大すること等により、軽量穴を重量バランス調整手段として利用しても良い。また、開口８の形状も円形に限定されるものでもない。 In the above embodiment, the case where the weight balance adjusting means is one circular opening 8 has been described, but the present invention is not limited to this, and the opening 8 is, for example, a predetermined range of the heavy outer peripheral edge portion 2a. A plurality of lightweight holes may be provided inside, or if the base metal 2 is provided with lightweight holes for the purpose of weight reduction and any of these lightweight holes corresponds to the unbalanced position P1, the lightweight holes are provided. The lightweight hole may be used as a weight balance adjusting means by enlarging the inner diameter or the like. Further, the shape of the opening 8 is not limited to a circular shape.

本発明は、被切削材としての木材を切断するためのチップソーに限らず、台金の外周縁部にチップが固着されて被切削材を切断するための全てのチップソーに利用できる。 The present invention is not limited to a tip saw for cutting wood as a material to be cut, but can be used for all tip saws for cutting a material to be cut by fixing a tip to the outer peripheral edge of a base metal.

１・・・チップソー、２・・・台金、２ａ・・・外周縁部、３・・・軽量穴、４・・・刃室、５・・・チップ固着部、６・・・チップ、６ａ・・・固着面、６ｂ・・・すくい面、６ｃ・・・先端面、６ｄ・・・側面、７・・・スリット、８・・・開口（重量バランス調整手段）、１０・・・バランス計測治具、１１・・・基台、１２・・・支柱、１３・・・軸受け、１３ａ・・・中心軸、１４・・・支持板、１５・・・錘、φ・・・開口の内径、Ｐ１・・・バランス不良位置、Ｌ・・・水平線。 1 ... Tipped saw, 2 ... Base metal, 2a ... Outer peripheral edge, 3 ... Lightweight hole, 4 ... Blade chamber, 5 ... Tip fixing part, 6 ... Tip, 6a ... fixed surface, 6b ... rake surface, 6c ... tip surface, 6d ... side surface, 7 ... slit, 8 ... opening (weight balance adjusting means), 10 ... balance measurement Jig, 11 ... base, 12 ... support, 13 ... bearing, 13a ... central shaft, 14 ... support plate, 15 ... weight, φ ... inner diameter of opening, P1 ... unbalanced position, L ... horizon.

Claims

円板状の台金の中心位置に取付穴を形成すると共にその外周縁部に所定間隔でチップ固着部を形成する台金成形工程と、前記台金成形工程で得られた台金のチップ固着部にチップをそれぞれ固着するチップ固着工程と、前記チップ固着工程で固着されたチップを研磨するチップ研磨工程と、前記チップ研磨工程で得られた台金の外周縁部のバランス不良位置に偏重量に応じた重量バランス調整手段を設けて当該台金の重量バランスを調整する重量バランス調整工程と、を備え、
前記重量バランス調整工程は、バランス計測治具に回転自在に取り付けた台金を垂直状態で回転させ、回転停止した状態の台金の外周縁部下部をバランス不良位置として計測した後に、前記外周縁部下部と直径方向反対側の外周縁部に所定重量の錘を取り付けて回転させ、当該台金が水平位置で停止する前記錘の重量を前記偏重量として計測するバランス量計測工程と、前記バランス量計測工程で計測された台金のバランス不良位置に前記重量バランス調整手段としての所定面積の開口を加工するバランス量加工工程と、を備えることを特徴とするチップソーの製造方法。 A base metal forming step of forming a mounting hole at the center position of a disk-shaped base metal and forming chip fixing portions at predetermined intervals on the outer peripheral edge portion thereof, and a base metal chip fixing step obtained in the base metal forming step. The chip fixing step of fixing the chips to the portions, the chip polishing step of polishing the chips fixed in the chip fixing step, and the unbalanced weight at the unbalanced position of the outer peripheral edge portion of the base metal obtained in the chip polishing step. It is provided with a weight balance adjusting process for adjusting the weight balance of the base metal by providing a weight balance adjusting means according to the above.
In the weight balance adjusting step, the base metal rotatably attached to the balance measuring jig is rotated in a vertical state, and the lower portion of the outer peripheral edge portion of the base metal in a stopped rotation state is measured as an imbalanced position, and then the outer peripheral edge is measured. A balance amount measuring step in which a weight of a predetermined weight is attached to an outer peripheral edge portion on the opposite side of the lower portion in the radial direction and rotated, and the weight of the weight at which the base metal stops at a horizontal position is measured as the unbalanced weight, and the balance. A method for manufacturing a tip saw, comprising: a balance amount processing step of processing an opening of a predetermined area as the weight balance adjusting means at an unbalanced position of a base metal measured in the amount measurement step.

前記バランス計測治具は、水平な基台上に立設された支柱と、前記支柱の上部に配設されて前記台金の取付穴を回転自在に支持する支持手段と、を備えることを特徴とする請求項１に記載のチップソーの製造方法。 The balance measuring jig is characterized by including a support column erected on a horizontal base and a support means disposed on the upper part of the support column to rotatably support the mounting hole of the base metal. The method for manufacturing a tip saw according to claim 1 .