技术领域technical field
本发明涉及一种针对厚度不大于5mm的硬质合金材料进行钻孔加工的工装，尤其是指一种具有嵌槽式卡簧连接的加工工装，属于钳床加工模具的技术领域。The invention relates to a drilling tool for cemented carbide materials with a thickness not greater than 5mm, in particular to a tooling with embedded groove type circlip connection, which belongs to the technical field of clamp bed processing molds.
背景技术Background technique
在中小型电机的模具制造中，时常需要制备专用工装来配合模具零部件制造，一些特殊模具工装需采用硬质合金材料进行钻孔加工，完成后再组装成专用工装。In the mold manufacturing of small and medium-sized motors, it is often necessary to prepare special tooling to match the manufacture of mold parts. Some special mold tooling needs to be drilled with cemented carbide materials, and then assembled into special tooling after completion.
现有技术中，模具制造中所使用的特殊工装，通常选用由硬质合金材料制成的废弃铣刀片，一般进行外形成型加工和钻孔加工。对模具的外形加工普遍采用线切割工艺。而对于模具的钻孔加工，若直接采用麻花钻钻孔加工的方式，由于麻花钻自身硬度远不及硬质合金材料，因此这种工艺显然不适合。In the prior art, the special tooling used in mold manufacturing usually selects discarded milling inserts made of hard alloy materials, and generally performs shape forming and drilling. The wire cutting process is generally used for the shape processing of the mold. As for the drilling of the mold, if the twist drill is used directly, since the hardness of the twist drill itself is far less than that of the cemented carbide material, this process is obviously not suitable.
目前，针对上述的特殊加工工艺，常用有以下三种应用不同连接结构的专用工装，包括：螺纹连接结构、一体结构和焊接连接结构。然而根据实际使用后的效果来看，以上三种应用不同连接结构的专用工装，分别存在以下的缺点和限制。At present, for the above-mentioned special processing technology, the following three kinds of special tooling with different connection structures are commonly used, including: threaded connection structure, integrated structure and welded connection structure. However, according to the effect after actual use, the above three kinds of special tooling with different connection structures have the following disadvantages and limitations respectively.
1、采用螺纹连接结构1. Adopt screw connection structure
这种加工工装是分别将顶端套件和杆身件通过螺纹连接方式进行连接。虽然操作简便，并且方便安装和拆卸，但对于需要高硬度、大扭矩的硬质合金材料的钻孔加工，仅仅依靠螺纹连接和啮合，其加工强度和工装自身强度都达不到所需承载的工艺要求。甚至在加工过程中，螺纹就已经崩裂，造成连接体之间脱离。This kind of processing tooling is to respectively connect the top sleeve and the shaft part through threaded connection. Although it is easy to operate and easy to install and disassemble, for the drilling of cemented carbide materials that require high hardness and high torque, only relying on threaded connection and meshing, the processing strength and the strength of the tooling itself cannot reach the required load capacity. Process requirements. Even during machining, the threads break off, causing disengagement between connected bodies.
2、采用一体结构2. Adopt an integrated structure
这种加工工装是指顶端套件和杆身件是一个整体结构，在加工强度和工装自身强度上，均比螺纹连接结构有显著提高。但对于需加工不同规格的通孔时，由于钻取每一种通孔的孔径大小与加工组件都是一一对应（即单配）的。因此制作成本太高，加工效率低。This kind of processing tool means that the top sleeve and the shaft part are an integral structure, which is significantly improved compared with the threaded connection structure in terms of processing strength and the strength of the tool itself. However, when it is necessary to process through holes of different specifications, the diameter of each type of through hole is in one-to-one correspondence with the processing components (that is, single matching). Therefore, the production cost is too high and the processing efficiency is low.
3、采用焊接连接结构3. Adopt welded connection structure
这种加工工装是分别将顶端套件和杆身件通过焊接连接方式进行连接。虽然能够有效避免因螺纹连接结构所导致的强度不足的缺陷，但总体加工受力强度仍旧不够承载工艺要求，且顶端套件和杆身件之间的连接仅仅依靠点焊来支撑，很难保证在整个加工过程中始终保持一个平稳的状态。尤其当钻床主轴钻速较高时，加工组件中的零部件在绕度增大的情况下，易发生折断现象，甚至被甩出钻床，造成安全隐患，严重的还会对操作人员造成伤害。This kind of processing tooling is to respectively connect the top sleeve and the shaft part through welding connection. Although it can effectively avoid the defect of insufficient strength caused by the threaded connection structure, the overall processing force strength is still not enough for the load-bearing process requirements, and the connection between the top sleeve and the shaft is only supported by spot welding, which is difficult to guarantee. A stable state is always maintained throughout the processing process. Especially when the drilling speed of the spindle of the drilling machine is high, the parts in the processing assembly are prone to breakage when the winding degree increases, and are even thrown out of the drilling machine, causing potential safety hazards and even causing injury to the operator.
此外，尽管点焊操作将顶端套件和杆身件焊接连接，然而在实际操作中，拆卸时特别不方便，一旦用力不当，就会造成顶端套件与杆身件之间的碰擦，造成各部件的尺寸变形，以致部件配合处损伤，形成装配性损耗。In addition, although the spot welding operation welds the top sleeve and the shaft piece, in actual operation, it is particularly inconvenient to disassemble. Once improper force is used, it will cause rubbing between the top sleeve and the shaft piece, resulting in the failure of each part. The size of the parts is deformed, so that the fittings of the parts are damaged, forming assembly loss.
所以，现有技术中的以上三种采用传统连接结构的加工工装都较难完成对硬质合金材料加工钻孔工艺。基于上述，非常有必要提出一种采用新型连接结构的加工工装，能够满足对较厚的硬质合金材料进行钻孔的工艺要求，并且能快速有效的钻出外观完整的通孔，同时保证整个加工过程状态平稳。Therefore, it is difficult for the above three kinds of processing tools in the prior art to use the traditional connection structure to complete the drilling process for the cemented carbide material. Based on the above, it is very necessary to propose a processing tool with a new connection structure, which can meet the technical requirements for drilling thicker cemented carbide materials, and can quickly and effectively drill through holes with complete appearance, while ensuring the entire The processing state is stable.
发明内容Contents of the invention
本发明的目的是提供一种具有嵌槽式卡簧连接的加工工装，用于对厚度不大于5mm的硬质合金材料进行钻孔加工，结构简单，制造成本较低，能有效保证钻孔加工过程中的平稳性，提高加工质量和效率，应用范围广。The object of the present invention is to provide a processing tool with a slotted circlip connection, which is used for drilling hard alloy materials with a thickness not greater than 5mm. The structure is simple, the manufacturing cost is low, and the drilling process can be effectively ensured. The stability in the process improves the processing quality and efficiency, and has a wide range of applications.
为实现上述目的，本发明提供一种具有嵌槽式卡簧连接的加工工装，其被扳手钻夹头固定夹持，用于对厚度不大于5mm的硬质合金材料进行钻孔加工；该加工工装包含：钻头；与所述钻头连接的顶端套件；与所述顶端套件通过过盈连接的杆身件；其中，所述顶端套件与杆身件之间还连接有通过嵌槽式设置的卡簧定位片；所述扳手钻夹头固定夹持在杆身件的外壁上。In order to achieve the above object, the present invention provides a processing tool with an embedded circlip connection, which is fixedly clamped by a wrench drill chuck, and is used for drilling hard alloy materials with a thickness not greater than 5mm; the processing The tooling includes: a drill bit; a top set connected to the drill bit; a shaft member connected to the top set through interference; wherein, a card set in a groove is also connected between the top set and the shaft The spring positioning piece; the wrench drill chuck is fixedly clamped on the outer wall of the shaft part.
所述钻头采用钨钢材料制成。The drill bit is made of tungsten steel material.
所述顶端套件的其中一个端面中心开设有钻头固定安装孔，其内径与所述钻头的外径相配，将所述钻头的尾端插入钻头固定安装孔内，并通过焊接对所述钻头和顶端套件进行固定连接；所述顶端套件的另一个端面上设置有第一连接件，在该第一连接件的端面上沿直径开设有第一凹槽。One of the end face centers of the top end set is provided with a drill bit fixing hole, the inner diameter of which matches the outer diameter of the drill bit, the tail end of the drill bit is inserted into the drill bit fixing hole, and the drill bit and the top end are connected by welding. The sleeve is fixedly connected; the other end surface of the top sleeve is provided with a first connecting piece, and a first groove is opened along the diameter on the end surface of the first connecting piece.
所述钻头插入钻头固定安装孔内的长度至少是该钻头总长的一半；所述钻头露出在钻头固定安装孔外的长度大于硬质合金材料的厚度。The length of the drill bit inserted into the drill bit fixing installation hole is at least half of the total length of the drill bit; the length of the drill bit exposed outside the drill bit fixing installation hole is greater than the thickness of the cemented carbide material.
在所述钻头固定安装孔的孔口位置设置有倒锥形台阶结构。An inverted tapered step structure is provided at the opening position of the drill bit fixing installation hole.
所述卡簧定位片呈工字形，其两端部位的宽度大于中间部位的宽度；该卡簧定位片的四周外角均呈圆角状；该卡簧定位片的一侧中间部位插入所述顶端套件的第一凹槽内。The circlip positioning piece is I-shaped, and the width of its two ends is greater than the width of the middle part; the outer corners around the circlip locating piece are rounded; the middle part of one side of the circlip locating piece is inserted into the top into the first groove of the kit.
所述杆身件的一端设置有第二连接件，在该第二连接件的端面中心开设有过盈连接孔，并且在该第二连接件的端面上沿直径开设有嵌槽；所述开设有过盈连接孔的第二连接件套设在第一连接件外部；所述卡簧定位片的第二侧中间部位插入所述杆身件的嵌槽内；所述杆身件的另一端设置有第三连接件，在所述第三连接件的柱形外表面上设置有滚花，所述扳手钻夹头固定夹持在杆身件上设置有滚花的第三连接件外壁上。One end of the shaft member is provided with a second connecting piece, an interference connection hole is opened in the center of the end face of the second connecting piece, and a slot is opened along the diameter of the end face of the second connecting piece; The second connecting piece with an interference connection hole is sleeved on the outside of the first connecting piece; the middle part of the second side of the circlip positioning piece is inserted into the slot of the shaft piece; the other end of the shaft piece A third connecting piece is provided, knurls are arranged on the cylindrical outer surface of the third connecting piece, and the wrench drill chuck is fixedly clamped on the outer wall of the third connecting piece provided with knurling on the shaft member .
在所述杆身件的中间部位设置有限位台阶。A limiting step is arranged in the middle part of the shaft member.
本发明所提供的具有嵌槽式卡簧连接的加工工装，与现有技术相比，具有以下有益效果。Compared with the prior art, the processing tool provided by the present invention has the following beneficial effects.
1、本发明改进了顶端套件与杆身件之间的连接方式，既不会发生因螺纹连接而可能发生的打滑现象，而且卡簧定位片又能确保在钻孔过程中，顶端套件与杆身件之间贴合连接而成为一个整体，不会发生跟转现象，不晃动、不偏心，有效保证了钻孔加工过程中的平稳性和加工质量。1. The present invention improves the connection between the top sleeve and the shaft, so that there will be no slippage that may occur due to threaded connection, and the circlip positioning piece can ensure that the top sleeve and the rod will not be damaged during the drilling process. The body parts are fitted and connected to form a whole, and there will be no follow-up phenomenon, no shaking, and no eccentricity, which effectively guarantees the stability and processing quality during the drilling process.
2、本发明在杆身件被扳手钻夹头夹持的第三连接件外壁上设置有滚花，使得加工工装在高速钻孔过程中，能够获得足够的扭矩，以保证钻出的通孔四周和边缘光滑，不会产生毛边、棱角边、飞边等不良外观，有效提高钻孔效率和质量。2. In the present invention, knurling is provided on the outer wall of the third connecting piece where the shaft is clamped by the wrench drill chuck, so that the processing tool can obtain sufficient torque during the high-speed drilling process to ensure the drilled through hole The surrounding and edges are smooth, and there will be no bad appearances such as burrs, angular edges, and flashes, which can effectively improve drilling efficiency and quality.
3、本发明的加工工装安装和拆卸均十分方便，并且能最大限度地保证顶端套件和杆身件各自的尺寸精度不受组装和拆卸的影响而发生尺寸变形。3. The processing tooling of the present invention is very convenient to install and disassemble, and can ensure to the greatest extent that the respective dimensional accuracy of the top sleeve and the shaft member will not be affected by assembly and disassembly to cause dimensional deformation.
综上所述，本发明所提供的具有嵌槽式卡簧连接的加工工装，能有效解决现有技术中存在的缺点和限制，降低制造成本，提高加工效率和质量，并且具有高精度，高通用性和适用面广等优点。To sum up, the processing tooling provided by the present invention with the socket-type circlip connection can effectively solve the shortcomings and limitations existing in the prior art, reduce manufacturing costs, improve processing efficiency and quality, and have high precision, high It has the advantages of versatility and wide applicability.
附图说明Description of drawings
图1为本发明中具有嵌槽式卡簧连接的加工工装的加工过程示意图；Fig. 1 is the schematic diagram of the processing process of the processing tooling with embedded groove type clip spring connection among the present invention;
图2为本发明中具有嵌槽式卡簧连接的加工工装的剖面结构示意图；Fig. 2 is the sectional structure schematic diagram of the processing tooling that has embedded groove type circlip connection among the present invention;
图3为本发明中顶端套件的剖面结构示意图；Fig. 3 is a schematic cross-sectional structure diagram of the top sleeve in the present invention;
图4为本发明中卡簧定位片的结构示意图；Fig. 4 is the structural representation of circlip positioning piece among the present invention;
图5为本发明中钻头、顶端套件和卡簧定位片组装后的剖面结构示意图；Fig. 5 is the schematic cross-sectional structure diagram of the drill bit, the top end set and the circlip positioning piece assembled in the present invention;
图6为本发明中杆身件的剖面结构示意图；Fig. 6 is a schematic cross-sectional structure diagram of a shaft member in the present invention;
图7为图6的俯视图，显示杆身件上的第二连接件的端面结构。Fig. 7 is a top view of Fig. 6, showing the end surface structure of the second connecting part on the shaft part.
具体实施方式Detailed ways
以下结合图1～图7，详细说明本发明的一个优选实施例。A preferred embodiment of the present invention will be described in detail below with reference to FIG. 1 to FIG. 7 .
如图1所示，为本发明中的加工过程示意图，该加工工装2被扳手钻夹头1固定夹持，用于对厚度为5～10mm的硬质合金材料3进行钻孔加工。如图2所示，所述加工工装包含：钻头4；与所述钻头4连接的顶端套件5；与所述顶端套件5通过过盈连接的杆身件8；其中，所述顶端套件5与杆身件8之间还连接有通过嵌槽式设置的卡簧定位片6；所述扳手钻夹头1固定夹持在杆身件8的外壁上。As shown in Fig. 1 , which is a schematic diagram of the processing process in the present invention, the processing tool 2 is fixedly clamped by a wrench drill chuck 1, and is used for drilling a cemented carbide material 3 with a thickness of 5-10 mm. As shown in Fig. 2, the processing tooling comprises: a drill bit 4; a top cover 5 connected with the drill bit 4; a shaft member 8 connected with the top cover 5 by interference; wherein, the top cover 5 is connected with the top cover 5 The shank parts 8 are also connected with the circlip positioning piece 6 arranged in a groove; the wrench drill chuck 1 is fixedly clamped on the outer wall of the shank parts 8 .
所述钻头4采用钨钢材料制成。The drill bit 4 is made of tungsten steel material.
所述顶端套件5采用Cr12钢材料制成，并进行热处理，即淬火后再进行低温回火，从而获得较高的表面硬度与强度。如图3所示，所述顶端套件5的其中一个端面中心开设有钻头固定安装孔53，将所述钻头4的尾端插入钻头固定安装孔53内，并通过焊接对所述钻头4和顶端套件5进行固定连接；所述顶端套件5的另一个端面上设置有第一连接件51，在该第一连接件51的端面上沿直径开设有第一凹槽52。The top set 5 is made of Cr12 steel, and is heat treated, that is, quenched and then tempered at a low temperature, so as to obtain higher surface hardness and strength. As shown in Figure 3, one of the end face centers of the top sleeve 5 is provided with a drill bit fixing installation hole 53, the tail end of the drill bit 4 is inserted into the drill bit fixing installation hole 53, and the drill bit 4 and the top end are connected by welding. The sleeve 5 is fixedly connected; the other end surface of the top sleeve 5 is provided with a first connecting piece 51 , and a first groove 52 is provided along the diameter on the end surface of the first connecting piece 51 .
其中，所述钻头固定安装孔53的内径与所述钻头4的外径相配。所述钻头4插入钻头固定安装孔53内的长度至少是该钻头4总长的一半，用以保证焊接前，钻头4在顶端套件5中能保持稳固。所述钻头4露出在钻头固定安装孔53外的长度大于硬质合金材料3的厚度，用以保证在进行钻孔加工时，能完全钻穿硬质合金材料3从而形成通孔。Wherein, the inner diameter of the drill fixing hole 53 matches the outer diameter of the drill 4 . The length of the drill bit 4 inserted into the drill bit fixing mounting hole 53 is at least half of the total length of the drill bit 4, so as to ensure that the drill bit 4 can remain stable in the top end set 5 before welding. The length of the drill bit 4 exposed outside the drill bit fixing hole 53 is greater than the thickness of the cemented carbide material 3, so as to ensure that the cemented carbide material 3 can be drilled completely to form a through hole when drilling.
进一步，在所述钻头固定安装孔53的孔口位置设置有倒锥形台阶结构54，在焊接过程中，该倒锥形台阶结构54能够使得所述钻头4被最大限度的紧密堆埋在焊锡7（如图5所示）的四周，形成一个包裹状，保证钻头4能够紧固连接在顶端套件5中，同时保证在利用本发明所述的加工工装对硬质合金材料进行钻孔时，所钻出的通孔四周和边缘不会产生毛边、棱角边和飞边等不良外观，提高钻孔加工的质量。Further, an inverted tapered step structure 54 is provided at the opening position of the drill bit fixing mounting hole 53. During the welding process, the inverted tapered stepped structure 54 can make the drill bit 4 be buried in the soldering tin as closely as possible. 7 (as shown in Figure 5), forming a wrapped shape to ensure that the drill bit 4 can be firmly connected in the top set 5, and at the same time ensure that when the cemented carbide material is drilled using the processing tooling described in the present invention, The periphery and edge of the drilled through hole will not produce bad appearances such as burrs, angular edges and flashes, thereby improving the quality of drilling processing.
所述卡簧定位片6可采用废弃的铣刀片。如图4所示，该卡簧定位片6呈“工”字形，即其两端部位的宽度大于中间部位的宽度。所述卡簧定位片6的四周外角均呈圆角状，避免操作人员在安装或拆卸本发明的加工工装的过程中碰伤手指。如图5所示，所述卡簧定位片6的一侧中间部位插入所述顶端套件5的第一凹槽52内。The circlip positioning piece 6 can adopt discarded milling blades. As shown in FIG. 4 , the circlip positioning piece 6 is in the shape of "I", that is, the width of its two ends is greater than that of the middle part. The outer corners around the circlip positioning piece 6 are all rounded, so as to prevent operators from bruising their fingers during the process of installing or disassembling the processing tool of the present invention. As shown in FIG. 5 , the middle part of one side of the snap ring positioning piece 6 is inserted into the first groove 52 of the top end sleeve 5 .
所述杆身件8采用Cr12钢材料制成，并进行热处理，即淬火后再进行低温回火，从而获得较高的表面硬度与强度。如图6所示，所述杆身件8的一端设置有第二连接件81，在该第二连接件81的端面中心开设有过盈连接孔82，并且在该第二连接件81的端面上沿直径开设有嵌槽83（如图7所示）。其中，所述开设有过盈连接孔82的第二连接件81套设在第一连接件51外部，即顶端套件5的第一连接件51被包容在杆身件8的第二连接件81内，从而使得顶端套件5与杆身件8之间形成过盈连接。所述卡簧定位片6的第二侧中间部位插入所述杆身件8的嵌槽83内，使得所述顶端套件5和杆身件8之间还通过嵌槽式设置的卡簧定位片6进行连接。上述这种连接顶端套件5和杆身件8的连接方式，能够确保整个加工工装被夹持在扳手钻夹头1上呈悬空状时，顶端套件5不会与杆身件8发生分离脱落的情况，并且在整个加工工装处于高速旋转的钻孔过程中，不会打滑，保证钻孔加工的有效性。The shaft part 8 is made of Cr12 steel, and is heat treated, that is, quenched and then tempered at a low temperature, so as to obtain higher surface hardness and strength. As shown in Figure 6, one end of the shaft member 8 is provided with a second connecting piece 81, an interference connecting hole 82 is opened in the center of the end surface of the second connecting piece 81, and on the end surface of the second connecting piece 81 The upper diameter is provided with a slot 83 (as shown in FIG. 7 ). Wherein, the second connecting piece 81 provided with the interference connecting hole 82 is sleeved outside the first connecting piece 51, that is, the first connecting piece 51 of the tip sleeve 5 is contained in the second connecting piece 81 of the shaft member 8 Inside, so that an interference connection is formed between the top sleeve 5 and the shaft member 8 . The middle part of the second side of the circlip positioning piece 6 is inserted into the slot 83 of the shaft member 8, so that the snap ring positioning piece arranged in the slot type is also passed between the top sleeve 5 and the shaft piece 8 6 Make the connection. The above-mentioned connection method of connecting the top sleeve 5 and the shaft member 8 can ensure that when the entire processing tool is clamped on the wrench drill chuck 1 in a suspended state, the top sleeve 5 will not be separated from the shaft member 8. The situation, and when the whole processing tool is in the drilling process of high-speed rotation, it will not slip, so as to ensure the effectiveness of the drilling process.
所述杆身件8的另一端设置有第三连接件85，在所述第三连接件85的柱形外表面上设置有滚花86，所述扳手钻夹头1固定夹持在杆身件8上设置有滚花86的第三连接件85外壁上，以增加扳手钻夹头1与第三连接件85之间的摩擦阻力，防止在加工过程中发生打滑而影响加工质量。在所述杆身件8的中间部位设置有限位台阶84，用以防止扳手钻夹头1在钻孔加工过程中向下滑移而影响钻孔质量，保证整个钻孔加工过程中的平稳状态。The other end of the shaft member 8 is provided with a third connecting member 85, and a knurl 86 is arranged on the cylindrical outer surface of the third connecting member 85, and the wrench drill chuck 1 is fixedly clamped on the shaft Part 8 is provided with knurling 86 on the outer wall of the third connecting part 85 to increase the frictional resistance between the wrench drill chuck 1 and the third connecting part 85 and prevent slipping during processing from affecting the processing quality. A limit step 84 is set in the middle of the shaft member 8 to prevent the wrench drill chuck 1 from sliding down during the drilling process and affect the drilling quality, and to ensure a stable state during the entire drilling process .
本发明所提供的具有嵌槽式卡簧连接的加工工装，与现有技术相比，具有以下有益效果。Compared with the prior art, the processing tool provided by the present invention has the following beneficial effects.
1、本发明改进了顶端套件与杆身件之间的连接方式，其通过嵌槽式设置的卡簧定位片连接定位，并且两者之间还采用过盈的非紧固连接。既不会发生因螺纹连接而可能发生的打滑现象，而且卡簧定位片又能确保在钻孔过程中，顶端套件与杆身件之间贴合连接而成为一个整体，不会发生跟转现象，不晃动、不偏心，有效保证了钻孔加工过程中的平稳性和加工质量。1. The present invention improves the connection mode between the top sleeve and the shaft part, which is connected and positioned by the snap ring positioning piece arranged in the slot type, and an interference non-fastening connection is also used between the two. There will be no slippage that may occur due to threaded connection, and the circlip positioning piece can ensure that during the drilling process, the top sleeve and the shaft part are fitted and connected to form a whole, and there will be no back rotation , no shaking, no eccentricity, which effectively guarantees the stability and processing quality during the drilling process.
由于所述卡簧定位片采用铣刀片作为原材料，具有高热硬性，能承受很大的负载也不易发生弯折、断裂，因此能够满足对硬质合金材料的加工工艺。Since the circlip positioning piece adopts milling blades as raw materials, it has high thermohardness, can bear a large load and is not easy to bend and break, so it can meet the processing technology of cemented carbide materials.
2、本发明在杆身件被扳手钻夹头夹持的第三连接件外壁上设置有滚花，由于在对较厚的硬质合金材料钻孔时，钻头与被加工的硬质合金材料之间会产生巨大的摩擦力，可能会造成钻头扭矩不足，致使钻孔处有棱角产生或者钻孔后形成的通孔周边有焦痕或翻边，导致外观不甚理想，直接影响钻孔质量。因此，本发明在杆身件被扳手钻夹头夹持的第三连接件外壁上设置的滚花，使得整个加工工装在同等钻速作用下，能够获得足够的扭矩，以保证钻出的通孔四周和边缘光滑，不会产生毛边、棱角边、飞边等不良外观，有效提高钻孔效率和质量。同时，所述第三连接件外壁上的滚花还能够增加扳手钻夹头与杆身件被加持段（第三连接件）之间的摩擦阻力，防止扳手钻夹头与杆身件之间在加工钻孔过程中发生打滑。2. In the present invention, knurls are arranged on the outer wall of the third connecting piece clamped by the wrench drill chuck on the shaft. Because when drilling thicker hard alloy materials, the drill bit and the hard alloy material to be processed There will be huge friction between them, which may cause insufficient torque of the drill bit, resulting in edges and corners at the drilled hole or burnt marks or flanging around the through hole formed after drilling, resulting in an unsatisfactory appearance and directly affecting the quality of the drilled hole . Therefore, in the present invention, the knurling provided on the outer wall of the third connecting part where the shaft part is clamped by the wrench drill chuck enables the entire processing tool to obtain sufficient torque under the action of the same drilling speed, so as to ensure the smoothness of drilling. The surroundings and edges of the hole are smooth, and there will be no bad appearance such as burrs, angular edges, and flashes, which can effectively improve the drilling efficiency and quality. At the same time, the knurling on the outer wall of the third connecting piece can also increase the frictional resistance between the wrench drill chuck and the held section (third connecting piece) of the shaft piece, preventing the friction between the wrench drill chuck and the shaft piece. Slippage occurs during drilling.
3、本发明的加工工装无论在加工前安装还是加工后拆卸都十分方便。不会像现有技术中的焊接方式那样需要花力气将顶端套件与杆身件硬性分离。同时，本发明能最大限度地保证顶端套件和杆身件各自的尺寸精度不受组装和拆卸的影响而发生尺寸变形。3. The processing tool of the present invention is very convenient no matter it is installed before processing or disassembled after processing. There is no need to forcefully separate the top sleeve from the shaft as in the welding method in the prior art. Simultaneously, the present invention can ensure to the greatest extent that the respective dimensional accuracy of the top sleeve and the shaft part are not affected by assembling and disassembling, resulting in dimensional deformation.
综上所述，本发明所提供的具有嵌槽式卡簧连接的加工工装，能有效解决现有技术中存在的缺点和限制，降低制造成本，提高加工效率，并且具有高精度，高通用性和适用面广等优点。To sum up, the processing tooling provided by the present invention with the socket-type circlip connection can effectively solve the shortcomings and limitations of the prior art, reduce manufacturing costs, improve processing efficiency, and have high precision and high versatility And the advantages of wide application.
尽管本发明的内容已经通过上述优选实施例作了详细介绍，但应当认识到上述的描述不应被认为是对本发明的限制。在本领域技术人员阅读了上述内容后，对于本发明的多种修改和替代都将是显而易见的。因此，本发明的保护范围应由所附的权利要求来限定。Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221253.2ACN102717126B (en) | 2012-06-29 | 2012-06-29 | Processing tooling with embedded-groove type clamping spring connection |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221253.2ACN102717126B (en) | 2012-06-29 | 2012-06-29 | Processing tooling with embedded-groove type clamping spring connection |
| Publication Number | Publication Date |
|---|---|
| CN102717126A CN102717126A (en) | 2012-10-10 |
| CN102717126Btrue CN102717126B (en) | 2014-07-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210221253.2AExpired - Fee RelatedCN102717126B (en) | 2012-06-29 | 2012-06-29 | Processing tooling with embedded-groove type clamping spring connection |
| Country | Link |
|---|---|
| CN (1) | CN102717126B (en) |
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| US5934384A (en)* | 1998-04-27 | 1999-08-10 | Wang; Peter | Transmission shaft and bit mounting arrangement of a motor-driven hand drill |
| CN2704436Y (en)* | 2004-06-30 | 2005-06-15 | 漳州升源机械工业有限公司 | Tool holding assembly |
| CN201253703Y (en)* | 2008-09-12 | 2009-06-10 | 中国有色（沈阳）冶金机械有限公司 | Relief type drill bit supporting seat |
| CN201880940U (en)* | 2010-03-31 | 2011-06-29 | 长春设备工艺研究所 | Device used for quickly replacing machine bit and other taper-shank tools |
| CN202606940U (en)* | 2012-06-29 | 2012-12-19 | 上海海事大学 | Machining tool with embedded groove type clamping spring connection |
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| CN102717126A (en) | 2012-10-10 |
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| CB03 | Change of inventor or designer information | Inventor after:Ji Minghao Inventor after:Dong Dashan Inventor after:Liu Long Inventor before:Ji Minghao Inventor before:Ye Shanpei Inventor before:Shen Jian | |
| COR | Change of bibliographic data | Free format text:CORRECT: INVENTOR; FROM: JI MINGHAO YE SHANPEI SHEN JIAN TO: JI MINGHAO DONG DASHAN LIU LONG | |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20140716 Termination date:20170629 |