Machining device for machining deep hole site of large equipment

Abstract

The utility model discloses a processing device for processing a deep hole site of large equipment, which comprises a reducing sleeve, one end of the reducing sleeve is fixedly connected with a lengthened reducing sleeve, one end of the lengthened reducing sleeve far away from the reducing sleeve is fixedly provided with a drill bit clamp, and the drill bit clamp is fixedly provided with a drill bit. The end, away from the lengthened reducing sleeve, of the reducing sleeve is fixedly connected with the output end of the boring machine. By designing a combined structure of the variable-diameter sleeve and the lengthened variable-diameter sleeve, the rigidity of the machining device is effectively enhanced, the cutter vibration phenomenon of a traditional lengthened cutter bar in the machining process is avoided, the smoothness of a machined product is ensured through the improvement, and the requirement for high-precision machining is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to non ferrous metal deep hole processing technical field, especially a kind of processing device of processing large equipment deep hole position. BACKGROUND

[0002] In mechanical processing, the hole with the hole depth greater than 500mm can only be processed by drill press currently, and the traditional lengthened tool bar is selected to cooperate with drill bit, but the existing lengthened tool bar is poor in rigidity, and the processed product cannot guarantee the smoothness when processing, even cannot be processed;When the ordinary drill bit is processed, the residual material in the hole needs to be drilled into powder to remove, the cutting force is large, the workpiece is easily deformed seriously, and the processing time is long, the efficiency is low, the tool is seriously worn, and the processing cost is high.

[0003] Therefore, a kind of processing device of processing large equipment deep hole position is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of processing device of processing large equipment deep hole position, to solve or at least alleviate one or more of the above problems and other aspects in prior art.

[0005] In order to achieve the above purpose, the main technical scheme adopted by the utility model includes:

[0006] A kind of processing device of processing large equipment deep hole position, including variable diameter sleeve, one end of the variable diameter sleeve is fixedly connected with lengthened variable diameter sleeve, the lengthened variable diameter sleeve is fixedly installed with drill holder at the end away from the variable diameter sleeve, drill is fixedly installed on the drill holder, the end away from the lengthened variable diameter sleeve of the variable diameter sleeve is fixedly connected with boring machine output end.

[0007] In a kind of processing device of processing large equipment deep hole position according to the utility model, wherein the drill bit is hollow drill bit.

[0008] In a kind of processing device of processing large equipment deep hole position according to the utility model, wherein the outer wall of the drill bit is provided with spiral chip flute.

[0009] In a kind of processing device of processing large equipment deep hole position according to the utility model, wherein the upper end of the drill bit is provided with cooling liquid inlet port communicated with the inner side of the drill bit.

[0010] In a kind of processing device of processing large equipment deep hole position according to the utility model, wherein the inner side wall of the drill bit is provided with cooling liquid outflow groove.

[0011] The variable diameter sleeve adopts a variable diameter sleeve with a model of BT50, and the lengthened variable diameter sleeve adopts a lengthened variable diameter sleeve with a model of Morse No.

[0012] The machining device for machining deep hole positions of large equipment has at least the following beneficial effects:

[0013] The combination structure of the variable diameter sleeve and the lengthened variable diameter sleeve effectively enhances the rigidity of the machining device, avoids the tool chatter phenomenon of the traditional lengthened tool bar in the machining process, and ensures the smoothness of the machined product, thereby meeting the requirement of high-precision machining.

[0014] The hollow drill bit is designed in cooperation with the spiral chip removal groove formed on the outer wall, so that the cutting chips generated in the machining process can be rapidly and smoothly discharged outside the hole, the influence of the cutting chip accumulation on the machining quality and efficiency is avoided, and the cutting block is more complete and is convenient for subsequent centralized collection.

[0015] The cooling liquid inlet on the upper end of the drill bit realizes the temperature reduction of the inside and outside of the drill bit at the same time, the cooling liquid outlet groove formed on the inner side wall of the drill bit can effectively ensure that the cooling liquid rapidly flows out from the inner wall of the drill bit, simultaneously avoids the phenomenon that the cooling liquid cannot be discharged due to the blockage of the cutting block on the inner wall of the drill bit, effectively reduces the temperature of the machined part, reduces the deformation of the workpiece, and improves the machining efficiency and the service life of the drill bit. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:

[0017] Fig. 1 Fig. 1 is a structural schematic view of the machining device for machining deep hole positions of large equipment according to the machining device for machining deep hole positions of large equipment of the present application;

[0018] Fig. 2 Fig. 4 is a structural schematic view of the drill bit according to the machining device for machining deep hole positions of large equipment of the present application;

[0019] Fig. 3 Fig. 5 is a cross-sectional structural schematic view of the drill bit according to the machining device for machining deep hole positions of large equipment of the present application.

[0020] DETAILED DESCRIPTION

[0021] 1, variable diameter sleeve; 2, lengthened variable diameter sleeve; 3, drill bit clamp; 4, drill bit; 401, spiral chip removal groove; 402, cooling liquid outlet groove; 403, cooling liquid inlet. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below with the accompanying drawings and embodiments, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0023] Please refer to Figs. 1 to 3 The embodiment of the present application provides a machining device for machining a deep hole position of a large equipment, which comprises a variable diameter sleeve 1. In the embodiment, the variable diameter sleeve 1 is a variable diameter sleeve with a model of BT50. One end of the variable diameter sleeve 1 is fixedly connected with an extended variable diameter sleeve 2. In the embodiment, the extended variable diameter sleeve 2 is an extended variable diameter sleeve with a model of Morse No. 4. One end of the extended variable diameter sleeve 2 away from the variable diameter sleeve 1 is fixedly installed with a drill chuck 3. The drill chuck 3 is fixedly installed with a drill bit 4. One end of the variable diameter sleeve 1 away from the extended variable diameter sleeve 2 is fixedly connected with an output end of a boring machine.

[0024] By designing the combined structure of the variable diameter sleeve 1 and the extended variable diameter sleeve 2, the rigidity of the machining device is effectively enhanced, and the phenomenon of tool chatter in the machining process of the traditional extended tool bar is avoided. This improvement ensures the smoothness of the machined product and meets the requirements of high-precision machining.

[0025] In the embodiment, the drill bit 4 is a hollow drill bit. A spiral chip removal groove 401 is formed in the outer wall of the drill bit 4. By this arrangement, the cutting block generated by drilling can be effectively ensured to be more complete, so as to facilitate subsequent centralized collection and smooth discharge of drill chips. In the embodiment, the blade on the drill bit 4 is a blade with three layers of outer, middle and inner layers disclosed in a hollow drill disclosed in a Chinese patent with a publication number of CN208289062U. In this way, the drilling position is quickly cut, the drilling resistance is reduced, and the drilling efficiency is improved.

[0026] In the embodiment, a cooling liquid inlet 403 is formed in the upper end of the drill bit 4 and is in communication with the inner side of the drill bit 4. By the cooling liquid inlet 403, the inside and outside of the drill bit 4 are cooled at the same time. When drilling, the cooling liquid is sprayed on the drill bit 4. Part of the cooling liquid flows to the drilling position from the outer wall of the drill bit 4, and the other part of the cooling liquid enters the inside of the drill bit 4 through the cooling liquid inlet 403.

[0027] In order to avoid the phenomenon that the cutting block inside the drill bit 4 blocks and causes the cooling liquid in the drill bit 4 to not flow out quickly, a cooling liquid outlet groove 402 is formed in the inner wall of the drill bit 4.

[0028] In order to facilitate the understanding of the above technical scheme of the present application, the working principle or operation mode of the present application in the actual process will be described in detail below.

[0029] Working principle: the variable diameter sleeve 1, lengthening variable diameter sleeve 2, drill chuck 3 and drill bit 4 thick and strong processing device assembly, then the variable diameter sleeve 1 and the output end of the boring machine is connected, in the processing, machine spindle speed S400 turns / min, feed F is 30mm / min, the workpiece is drilled.

[0030] The above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the present application is not limited to the form disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application conceived herein, by the above teachings or related art or knowledge. The changes and modifications made by those skilled in the art without departing from the spirit and scope of the present application shall be within the scope of protection of the appended claims of the present application.

Claims

1. A processing apparatus for machining deep holes in large equipment, characterized in that, Includes a variable diameter sleeve (1), one end of which is fixedly connected to an extended variable diameter sleeve (2), and the end of the extended variable diameter sleeve (2) away from the variable diameter sleeve (1) is fixedly mounted with a drill bit chuck (3), and a drill bit (4) is fixedly mounted on the drill bit chuck (3). The end of the variable diameter sleeve (1) away from the extended variable diameter sleeve (2) is fixedly connected to the output end of the boring machine. The drill bit (4) is a hollow drill bit; a spiral chip removal groove (401) is provided on the outer wall of the drill bit (4); a coolant inlet (403) is provided at the upper end of the drill bit (4) and communicates with the inner side of the drill bit (4); a coolant outlet groove (402) is provided on the inner wall of the drill bit (4).

2. The processing device for processing deep holes in large equipment according to claim 1, characterized in that: The reducing sleeve (1) is a BT50 type reducing sleeve, and the extended reducing sleeve (2) is a Morse No. 4 extended reducing sleeve.

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