Combined drilling tool

Abstract

The utility model relates to a combined drilling tool which mainly comprises a tool body and a drilling tool shaft. Wherein a conical structure is arranged on the surface of the cutter main body, and the cutter main body is fixedly connected with the drilling cutter shaft in a threaded connection mode. The cutter main body and the drilling cutter shaft are reliably connected through the design of the spline sleeve hole and the spline edge, and are further reinforced through the combined screw rod, so that the stability of the cutter is ensured, and the cutting force is accurately transmitted. In addition, the tool main body and the drilling tool shaft are detachably mounted, so that quick disassembly and replacement are facilitated. The milling cutter and the drilling cutter of the cutter are made of high-speed alloy steel materials and can be flexibly replaced according to different machining requirements, and the adaptability and the operation efficiency of the cutter are greatly improved. Through the characteristics of modular design, detachable connection and flexible replacement, the use efficiency and the maintenance convenience of the tool are optimized, and the tool is particularly suitable for complex and variable machining occasions.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling tool technical field, concretely is a combined drilling tool. BACKGROUND

[0002] In the traditional drilling tool, the connection mode of the tool body and the drill shaft usually adopts fixed bolts or welding forms. The tool body is usually made of an integral structure, and is usually not detachable or replaceable with the drill shaft. In these tool designs, the drill shaft and the tool body are usually connected through traditional mechanical connection modes, such as threaded fastening or direct welding fixation, which makes the tool more stable during use, but relatively difficult to replace, maintain and customize different specifications of tools.

[0003] Defects of the traditional technical solution:

[0004] Inflexible connection: The connection mode of the traditional drilling tool is usually rigid, and once the connection between the tool body and the drill shaft is fixed, it is difficult to disassemble or replace. Although this structure has high stability in some cases, it lacks flexibility in actual application. Especially when different drill bits or milling tools need to be replaced, users face more complex disassembly work, and need to use special tools to disassemble the fixed parts, causing additional time and cost.

[0005] Low maintenance and operation efficiency: Because the drill shaft and the tool body are connected and fastened in the traditional technology, most of them adopt traditional threaded connection or welding mode, which cannot be quickly replaced or maintained during operation, reducing the use efficiency and maintenance convenience of the tool. Especially after a long time of use, the threaded connection may be loose or damaged, affecting the stability and performance of the tool.

[0006] Poor adaptability: The traditional drilling tool usually adopts fixed tool configuration, which cannot be quickly replaced according to different processing needs. Different processing scenarios may require different specifications of drill bits and milling tools, but the traditional tool design often does not support quick switching, resulting in low processing efficiency and inability to fully utilize tool resources.

[0007] Therefore, the existing problems are researched and improved, and a combined drilling tool is provided to solve the existing problems, aiming to solve the problems and improve the practical value through the technology. INVENTION CONTENTS

[0008] The utility model aims at solving the technical problems existing in the prior art or related technology.

[0009] The utility model relates to a combined drilling tool, specifically including the following technical solutions:

[0010] The utility model provides a combined drill cutter, including cutter main part and drill bit shaft, the surface of cutter main part is equipped with milling cutter apron, and the bottom of milling cutter apron is fixedly installed with tool holder, the surface of milling cutter apron and drill bit shaft is equipped with milling cutter apron and drill bit respectively, the surface of tool holder and drill bit is equipped with detachable installation milling cutter and drill cutter respectively, the surface of drill bit shaft is equipped with drilling groove, the inner side of cutter main part and milling cutter apron is equipped with spline sleeve hole for drill bit shaft, and the surface of drill bit shaft is equipped with spline edge, through the cooperation of spline sleeve hole and spline edge, realize the stable connection between cutter main part and drill bit shaft, guarantee accurate transmission cutting force between both, and ensure that cutter is not easy to loosen in the use, simultaneously, the detachable connection between cutter main part and drill bit shaft facilitates the disassembly and replacement of cutter, improves operating efficiency.

[0011] The utility model discloses in a preferable example can be further configured as: drill bit shaft is sleeved in the inner side of milling cutter apron and cutter main part, the surface of cutter main part is equipped with screw hole and is adapted to have combined screw rod, the surface of drill bit shaft is equipped with the thread hole corresponding with combined screw rod, through being equipped with screw hole on the surface of cutter main part and being cooperated with combined screw rod, make cutter main part and drill bit shaft can pass through the thread connection, increase the fastening of connection, avoid the problem that loosens because of vibration or long time use in the operation process, simultaneously, this design makes the disassembly and replacement of cutter more convenient, save time and cost.

[0012] The utility model discloses in a preferable example can be further configured as: the milling cutter apron is conical structure, and the milling cutter apron on the surface of cutter main part is helically arranged, the milling cutter apron of conical structure and helical arrangement not only strengthen the cutting ability of cutter, but also effectively reduce the cutting resistance in the cutting process, and helical arrangement helps to improve the chip removal effect, avoids the accumulation of cutting chip, and maintains good machining accuracy.

[0013] The utility model discloses in a preferable example can be further configured as: the cutter and milling cutter are high speed alloy steel material members, and the bottom of tool holder and drill bit is equipped with the clamping groove that is suitable for cutter and milling cutter, high speed alloy steel material improves the wear resistance of cutter, prolongs the service life of cutter, and the bottom is equipped with the clamping groove that is suitable for, can ensure that milling cutter and drill cutter are stably fixed on tool holder and drill bit shaft, and provide stable cutting performance in the processing.

[0014] The utility model discloses in a preferable example can be further configured as: the combined screw rod is self locking structure, is used for the fastening connection stability between cutter main part and drill bit shaft, the combined screw rod of self locking structure can ensure that the connection between cutter main part and drill bit shaft is not easy to loosen, thereby avoiding the risk that loosens because of vibration or external force, maintaining the stability and safety of cutter, reducing the frequency of maintenance.

[0015] The utility model discloses in a preferable example can be further configured as: the cutter main part, milling cutter apron and drill bit shaft all adopt modular design, can according to different processing needs flexible replacement different specifications milling cutter and drill bit. Modular design makes the cutter more flexible, can according to different processing needs fast replacement different specifications milling cutter and drill bit, greatly improved the adaptability and application range of cutter, met the demand of different technology, promoted production efficiency.

[0016] The utility model discloses in a preferable example can be further configured as: the taper angle of milling cutter apron is 15 to 30, so as to provide better guiding performance and stability in the processing. The proper taper angle design makes the cutter can provide better guiding performance in the use process, strengthened the contact stability between cutter and workpiece, thereby improved the processing accuracy, reduced the processing error, and improved the stability of drilling process.

[0017] The utility model discloses the beneficial effects that have been obtained are:

[0018] 1. In the utility model, by adopting the design of spline sleeve hole and spline edge, the reliable connection between the cutter main part and the drill bit shaft is realized, the stability and accurate transmission cutting force between the two are ensured, the screw hole is arranged on the surface of the cutter main part and cooperates with the combined screw rod, the cutter main part and the drill bit shaft can be connected through the screw thread, convenient disassembly and replacement mode are provided, and the maintenance and operation efficiency are improved.

[0019] 2. In the utility model, by adopting modular design, the milling cutter and drill bit of high-speed alloy steel material are used, and the clamping groove is arranged at the bottom end of the tool holder and drill bit shaft, so that different specifications of milling cutter and drill bit can be replaced flexibly according to different processing requirements, and the adaptability and application range of the cutter are improved. DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of an embodiment of the utility model;

[0021] Figure 2 It is the cutter main part and tool holder structure schematic diagram of an embodiment of the utility model;

[0022] Figure 3 It is the cutter main part and drill bit shaft structure schematic diagram of an embodiment of the utility model;

[0023] Figure 4 It is the drill bit shaft structure schematic diagram of an embodiment of the utility model.

[0024] REFERENCE SIGNS:

[0025] 100, cutter body; 110, milling cutter skirt; 120, tool holder; 130, combined screw; 111, chip flute; 121, milling cutter; 200, drill shaft; 210, drill bit; 220, drilling groove; 211, drill cutter. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific embodiments and with reference to the drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] It is understood that the description is only exemplary and is not intended to limit the scope of the utility model.

[0028] The utility model is described below in combination with the accompanying drawings Figures 1-4 Some embodiments of the utility model provide a combined drilling cutter. Embodiment one

[0029] In this embodiment, the combined drilling cutter comprises a cutter body 100 and a drill shaft 200. The surface of the cutter body 100 is provided with a milling cutter skirt 110, and the bottom end of the milling cutter skirt 110 is fixedly installed with a tool holder 120. The surfaces of the milling cutter skirt 110 and the drill shaft 200 are respectively provided with a milling cutter skirt 110 and a drill bit 210, and the surfaces of the tool holder 120 and the drill bit 210 are respectively provided with a detachably installed milling cutter 121 and a drill cutter 211. The surface of the drill shaft 200 is provided with a drilling groove 220. The inner side of the cutter body 100 and the milling cutter skirt 110 is provided with a spline sleeve hole for the drill shaft 200, and the surface of the drill shaft 200 is provided with a spline edge.

[0030] The drill shaft 200 is installed on the inner side of the milling cutter skirt 110 and the cutter body 100 in a sleeved manner, and the surface of the cutter body 100 is provided with a screw hole and is adapted with a combined screw 130. The surface of the drill shaft 200 is provided with a threaded hole corresponding to the combined screw 130. Through this connection mode, the cutter body 100 and the drill shaft 200 can be reliably fastened and connected, and a convenient disassembly and replacement mode is provided.

[0031] Further, the milling cutter skirt 110 is a conical structure, and the milling cutter skirt 110 on the surface of the cutter body 100 is arranged in a spiral shape. This structure helps to improve the guiding performance of the cutter during machining, reduce the cutting resistance, improve the chip removal effect, and ensure the stability during drilling processing.

[0032] The bottom end of the tool holder 120 and the drill bit 210 is provided with a clamping groove matched with the drill cutter 211 and the milling cutter 121. Through the cooperation of the clamping groove and the milling cutter 121 and the drill cutter 211, the parts of the cutter are firmly connected, and the cutter parts are prevented from loosening during machining. Embodiment two

[0033] The combined drill cutter provided by the embodiment is similar to the structure of embodiment one, and the main difference lies in that different design methods are adopted for the connecting part to adapt to different machining requirements.

[0034] The combined drill cutter also comprises a cutter main body 100 and a drill shaft 200. The surface of the cutter main body 100 is provided with a milling skirt 110, and the bottom end of the milling skirt 110 is fixedly installed with a tool holder 120. The surfaces of the milling skirt 110 and the drill shaft 200 are respectively provided with a milling cutter 110 and a drill bit 210, and the surfaces of the tool holder 120 and the drill bit 210 are respectively provided with a detachably installed milling cutter 121 and a drill cutter 211. The inner side of the cutter main body 100 and the milling skirt 110 is provided with a spline sleeve hole for the drill shaft 200, and the surface of the drill shaft 200 is provided with a spline edge.

[0035] The drill shaft 200 is connected to the inner side of the milling skirt 110 and the cutter main body 100 in a sleeving manner, the surface of the cutter main body 100 is provided with a screw hole, and a combined screw 130 is matched, the surface of the drill shaft 200 is provided with a threaded hole corresponding to the combined screw 130, and the fastening connection between the cutter main body and the drill shaft is ensured.

[0036] The spiral arrangement of the milling skirt 110 on the surfaces of the milling skirt 110 and the cutter main body 100 forms a spiral guide effect, effectively reduces the resistance in the cutting process, and enables the chips to be effectively discharged, thereby reducing the wear of the cutter and improving the machining precision.

[0037] In this embodiment, the clamping grooves at the bottom ends of the tool holder 120 and the drill bit 210 are fixed between the drill cutter 211 and the milling cutter 121 through a quick connecting device. This design facilitates the quick replacement of the cutter, especially in the batch production process, the cutter can be quickly replaced according to different machining requirements, thereby improving the production efficiency.

[0038] Working effect description

[0039] Stable connecting structure: the spline sleeve hole and the spline edge are matched in the utility model, the stable connection between the cutter main body 100 and the drill shaft 200 is ensured, the loosening or falling off of the connecting part in the work is effectively avoided, and the accurate transmission of the cutting force in the machining process is ensured.

[0040] Convenient disassembly and replacement: the combined screw 130 and the threaded connection design make the cutter main body 100 and the drill shaft 200 be easily disassembled or replaced, a large amount of maintenance time and cost are saved, and there is a significant advantage especially in batch production or equipment maintenance.

[0041] Optimized cutting performance: The conical structure and the spiral arrangement of the milling cutter skirt 110 design improve the guiding performance and chip removal effect of the cutter, reduce the cutting resistance, avoid the accumulation of chips, and thus improve the machining precision and stability.

[0042] Modular design improves adaptability: The modular design allows the cutter body, milling cutter skirt, drill shaft, and other components to be replaced flexibly according to different processing needs, making the cutter more adaptable and suitable for a variety of processing scenarios, expanding the application range of the cutter.

[0043] Improve the service life of the cutter: All cutter components are made of high-speed alloy steel with high wear resistance, increasing the durability of the cutter. The clamping groove design ensures the tight connection of all parts of the cutter, effectively preventing wear or damage caused by loosening during use, thereby prolonging the service life of the cutter.

[0044] High processing efficiency: The quick connection device in the cutter design makes the cutter replacement and adjustment more convenient, reduces the non-production time, and improves the overall processing efficiency, especially suitable for use in high-intensity production environments.

[0045] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A combined drilling tool, characterized in that, include: The tool body (100) and drill spindle (200) are provided. The surface of the tool body (100) is provided with a milling cutter skirt (110), and a tool holder (120) is fixedly installed at the bottom end of the milling cutter skirt (110). The milling cutter skirt (110) and the drill spindle (200) are respectively provided with a milling cutter skirt (110) and a drill bit (210). The surfaces of the tool holder (120) and the drill bit (210) are respectively provided with a detachable milling cutter (121) and a drill cutter (211). The surface of the drill spindle (200) is provided with a drilling groove (220). The inner side of the tool body (100) and the milling cutter skirt (110) is provided with a spline sleeve hole for the drill spindle (200). The surface of the drill spindle (200) is provided with a spline ridge.

2. The combined drilling tool according to claim 1, characterized in that, The drill shaft (200) is sleeved on the inner side of the milling cutter skirt (110) and the tool body (100). The surface of the tool body (100) is provided with a screw hole and is adapted to be fitted with a combination screw (130). The surface of the drill shaft (200) is provided with a threaded hole corresponding to the combination screw (130).

3. A combined drilling tool according to claim 1, characterized in that, The milling cutter skirt (110) has a conical structure, and the milling cutter skirt (110) on the surface of the tool body (100) is arranged in a spiral shape.

4. A combined drilling tool according to claim 1, characterized in that, The drill bit (211) and milling cutter (121) are high-speed alloy steel components. The bottom end of the tool holder (120) and the drill bit (210) are provided with a slot that is compatible with the drill bit (211) and the milling cutter (121).

5. A combined drilling tool according to claim 2, characterized in that, The combined screw (130) is a self-locking structure used for a stable fastening connection between the tool body (100) and the drill shaft (200).

6. A combined drilling tool according to claim 1, characterized in that, The tool body (100), milling cutter skirt (110) and drill spindle (200) are all modularly designed, and different specifications of milling cutters (121) and drill bits (210) can be flexibly replaced according to different processing needs.

7. A combined drilling tool according to claim 1, characterized in that, The taper angle of the milling cutter skirt (110) is 15° to 30° to provide better guiding performance and stability during machining.

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