Diamond inner chip removal deep hole drill tool

Abstract

The utility model relates to a diamond inner chip removal deep hole drilling tool which comprises a fixing base, an installation hole is formed in the end of the fixing base, an extension cylinder is connected to the inner wall of the installation hole in an inserted mode, a threaded cylinder is fixedly connected to the end of the extension cylinder, and a positioning shaft is fixedly connected to the end of the threaded cylinder. A connecting cylinder is detachably connected to the outer surface of the positioning shaft, a tool apron is fixedly connected to the end of the connecting cylinder, a tool rest is fixedly connected to the end of the tool apron, a blade is detachably connected to the outer surface of the tool rest, and a tool bit is detachably connected to the middle of the end of the tool rest. According to the diamond inner chip removal deep hole drilling tool, the blade and the tool bit can be independently replaced, the replacement cost after the tool is abraded can be reduced, meanwhile, the temperature of the tool during cutting can be reduced by means of high-pressure spraying of the spray head and the water outlet to cooling liquid, cuttings can be broken through the impact effect of the cooling liquid, and the cutting efficiency is improved. And the inner wall of the hole scratched by cuttings is reduced, so that the machining quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of drilling tool, concretely relates to a diamond internal chip removal deep hole drill tool. BACKGROUND

[0002] In the field of mechanical processing, deep hole processing has always been a challenging task, and deep hole is usually defined as a hole with a ratio of hole depth to hole diameter greater than 5. With the development of modern manufacturing industry, the precision, efficiency and surface quality of deep hole processing are increasingly required. For example, in many industries such as aerospace, automobile manufacturing, energy and many other industries, many key parts involve deep hole structure, such as shaft parts of aero-engine, cylinder of automobile engine and some parts of oil drilling equipment.

[0003] Traditional deep hole drill tool faces many problems in the processing, on the one hand, when the tool processes some high hardness and high strength materials, the tool wears seriously and has low durability, which not only increases the replacement frequency of the tool and the processing cost, but also affects the continuity and efficiency of processing, leading to the extension of production cycle, on the other hand, in deep hole processing, the chip removal is not smooth, the chip is easy to accumulate in the hole, scratch the processed surface, cause the decline of the processing surface quality, and even cause the tool to break. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a diamond internal chip removal deep hole drill tool, which can reduce the cost of replacing the tool after wear by replacing the blade and the tool bit separately, and can reduce the temperature of the tool cutting by means of the high pressure injection of the nozzle and the drain port on the cooling liquid, and can also break the chip by the impact of the cooling liquid, reduce the scratch of the chip on the inner wall of the hole, so as to ensure the processing quality.

[0005] A kind of diamond internal chip removal deep hole drill tool, including fixed seat, the end of the fixed seat is equipped with mounting hole, the inner wall of the mounting hole is inserted with extension cylinder, the end of the extension cylinder is fixedly connected with threaded cylinder, the end of the threaded cylinder is fixedly connected with positioning shaft, the outer surface of the positioning shaft is detachably connected with connecting cylinder, the end of the connecting cylinder is fixedly connected with tool holder, the end of the tool holder is fixedly connected with tool holder, the outer surface of the tool holder is detachably connected with blade, the middle part of the tool holder end is detachably connected with tool bit, the inner wall of the tool holder is detachably connected with nozzle, one end of the nozzle is equipped with drain hole.

[0006] Preferably, the outer surface of the fixed seat is provided with a pressure rod on both sides, and the end of the pressure rod penetrating into the mounting hole abuts against the outer wall of the extension cylinder, so that the extension cylinder is tightly connected to the inner wall of the mounting hole.

[0007] Preferably, the outer wall of the fixing seat is fixedly connected with a snap ring, the inner wall of the snap ring is inserted with a conveying pipe, and the other end of the conveying pipe is inserted with the end of the spray head.

[0008] Preferably, the outer surface of the threaded cylinder is threadedly connected with a fixing ring, and the outer surface of the connecting cylinder is threadedly connected with the inner wall of the fixing ring.

[0009] Preferably, the outer surface of the blade is threadedly arranged in a fixing bolt, and the end of the fixing bolt penetrating through the blade is threadedly connected with the outer surface of the tool holder.

[0010] Preferably, the middle part of the end of the tool holder is provided with a positioning hole, and the inner wall of the positioning hole is threadedly connected with the end of the tool bit.

[0011] The above technical scheme has the beneficial effects of:

[0012] (1) The diamond internal chip removal deep hole drill tool can provide installation positions for the blade and the tool bit through the cooperation of the tool seat and the tool holder, the blade and the tool bit can be individually replaced, the cutting position of the tool that is most prone to wear can be individually replaced, the overall service life of the tool is prolonged, the cost required for replacing the tool is reduced, the positions of the tool seat and the tool holder can be adjusted through the cooperation of the extension cylinder and the connecting cylinder, the device can meet the drilling requirements of different depths, and the overall applicability of the device is improved.

[0013] (2) The diamond internal chip removal deep hole drill tool can spray the cooling liquid outward in a high-pressure state through the cooperation of the spray head and the drainage hole, can effectively reduce the cutting temperature, and can make the cutting chip break through the impact action of the cooling liquid, the cooling liquid is sprayed to the cutting area in a high pressure, on the one hand, the cutting chip can be more easily broken under the scouring of the cooling liquid, on the other hand, the cutting chip can be timely washed away from the cutting area, the cutting chip is prevented from winding the tool, and then the broken cutting chip is guided outward along the direction of the cooling liquid outflow, so that the situation that the cutting chip scratches the hole wall is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole installation structure schematic view of the utility model;

[0015] Fig. 2 It is a fixing seat schematic view of the utility model;

[0016] Fig. 3 It is a fixing ring installation structure schematic view of the utility model;

[0017] Fig. 4 It is a tool seat sectional structure schematic view of the utility model;

[0018] Fig. 5 It is a tool bit structure schematic view of the utility model;

[0019] Fig. 6 The utility model discloses a nozzle structure schematic view.

[0020] In the drawing: 1, fixed seat, 2, mounting hole, 3, extension cylinder, 4, compression rod, 5, snap ring, 6, conveying pipe, 7, threaded cylinder, 8, positioning shaft, 9, fixed ring, 10, connecting cylinder, 11, tool holder, 12, tool holder, 13, blade, 14, fixed bolt, 15, positioning hole, 16, tool bit, 17, nozzle, 18, drain hole. DETAILED DESCRIPTION

[0021] The foregoing and other technical contents, features and effects of the utility model are described below in conjunction with the accompanying drawings. Figs. 1 to 6 The embodiment is described in detail.

[0022] The embodiment provides a diamond internal chip removal deep hole drill tool, as shown in the drawing, including fixed seat 1, the end of fixed seat 1 is provided with mounting hole 2, the inner wall of mounting hole 2 is inserted with extension cylinder 3, the outer surface of fixed seat 1 is provided with compression rod 4 on both sides, one end of compression rod 4 is inserted into mounting hole 2 and abuts against the outer wall of extension cylinder 3, so that extension cylinder 3 is tightly connected to the inner wall of mounting hole 2, fixed seat 1 is used as the basic support component of the whole tool, and provides mounting base and positioning reference for other parts;

[0023] The mounting hole 2 at the end is used for connecting the extension cylinder 3, the threaded hole on both sides is used for installing the compression rod 4, and the snap ring 5 on the outer wall is used for connecting the conveying pipe 6, which helps to realize the fastening connection and functional integration of each component, guarantees the stability and integrity of the whole tool structure, the mounting hole 2 provides the mounting position of the extension cylinder 3, so that the extension cylinder 3 can be accurately connected with the fixed seat 1, and stable installation is realized through subsequent cooperation with the compression rod 4 and other components, so that loosening or displacement does not occur in the working process of the whole tool, and the machining precision is not affected, the extension cylinder 3 cooperates with the connecting cylinder 10, different numbers of extension cylinders 3 can be selected, the position of the tool holder 11 and the tool holder 12 relative to the fixed seat 1 can be flexibly adjusted, so that the requirement of drilling holes of different depths is met, the applicability and universality of the device are improved, and the device can be used in various machining scenes.

[0024] The end of the extension cylinder 3 is fixedly connected with a threaded cylinder 7, the end of the threaded cylinder 7 is fixedly connected with a positioning shaft 8, the outer surface of the positioning shaft 8 is detachably connected with a connecting cylinder 10, the outer surface of the threaded cylinder 7 is threadedly connected with a fixing ring 9, the outer surface of the connecting cylinder 10 is threadedly connected with the inner wall of the fixing ring 9, one end of the threaded cylinder 7 is fixedly connected with the extension cylinder 3, the other end is connected with the positioning shaft 8, and the outer surface thereof is used for connecting the fixing ring 9, reliable connection between the threaded cylinder 7, the extension cylinder 3, the positioning shaft 8 and the fixing ring 9 is realized through the threaded connection mode, the connection strength and stability between the components are ensured, the tool can still maintain the structural integrity under the condition of high-speed rotation and bearing large cutting force, the smooth drilling process is ensured, the connecting cylinder 10 is provided with the positioning and connecting basis, and the connecting cylinder 10 can be accurately installed in the tool structure.

[0025] The axial positions of the connecting cylinder 10 and subsequent tool seats 11, tool holders 12 and the like are determined through cooperation with the threaded cylinder 7 and the fixing ring 9, the relative position accuracy of the cutting parts of the tool in the machining process is ensured, the straightness, roundness and the like precision indexes of drilling are improved, the fixing ring 9 is threadedly connected with the outer surface of the threaded cylinder 7 and the outer surface of the connecting cylinder 10, plays a role in fastening the connecting cylinder 10, the connecting cylinder 10 is firmly fixed in the tool structure through cooperation with the threaded cylinder 7, loosening or displacement of the connecting cylinder 10 in the machining process due to rotation, vibration and the like factors is prevented, the stability of the positions of the tool seat 11 and the tool holder 12 is ensured, and the cutting performance and machining precision of the tool are ensured not to be affected.

[0026] The end of the connecting cylinder 10 is fixedly connected with a tool holder 11, the end of the tool holder 11 is fixedly connected with a tool rest 12, the outer surface of the tool rest 12 is detachably connected with a tool bit 13, the outer surface of the tool bit 13 is threaded through a fixing bolt 14, one end of the fixing bolt 14 passing through the tool bit 13 is threadedly connected with the outer surface of the tool rest 12, a positioning hole 15 is formed in the middle of the end of the tool rest 12, the inner wall of the positioning hole 15 is threadedly connected with the end of a tool head 16, the tool head 16 is detachably connected with the middle of the end of the tool rest 12, the connecting cylinder 10 connects the tool holder 11 and the positioning shaft 8, connects the cutting components such as the tool holder 11 and the tool rest 12 with the main structure of the tool, transmits the torque and the cutting force, so that the tool holder 11 and the tool rest 12 can perform cutting work under the stable structure support, the tool holder 11 provides a mounting base for the tool rest 12 and is connected with a spray head 17, is an important connecting component for realizing the cutting function and the cooling and chip removal function of the tool, on the one hand, it stably fixes the tool rest 12 in the tool structure, ensures the position accuracy and stability of the tool bit 13 and the tool head 16 on the tool rest 12 in the cutting process, on the other hand, the internal structure provides a suitable mounting space and a cooling liquid flow passage for the spray head 17, so that the cooling liquid can be smoothly transmitted in the tool holder 11 and sprayed to the cutting area through the spray head 17, realizes the cooling and chip removal functions, improves the machining quality and the tool life, the tool rest 12 is a direct mounting carrier of the tool bit 13 and the tool head 16, provides accurate mounting positions and positioning references for the tool bit 13 and the tool head 16, ensures the relative position and angle of the tool bit 13 and the tool head 16 in the cutting process are accurate, so as to ensure the machining accuracy.

[0027] Meanwhile, the structure design of the tool rest 12 should be able to withstand various forces in the cutting process and effectively transmit these forces to the connecting cylinder 10, the fixing seat 1 and other components, ensures the stability and reliability of the overall structure of the tool, so that the tool can work normally under complex cutting conditions, the tool bit 13 is one of the main cutting components of the tool, realizes the cutting removal of the material through direct contact and relative movement with the machining material, the tool bit 13 is detachably mounted on the tool rest 12 through the fixing bolt 14, is convenient for individual replacement after wear, reduces the use cost of the tool, improves the economy and maintenance convenience of the tool, the positioning hole 15 is formed in the middle of the end of the tool rest 12, provides accurate mounting and positioning for the tool head 16, ensures the mounting position of the tool head 16 on the tool rest 12 is accurate, so that the cutting edge of the tool head 16 can work cooperatively with the tool bit 13, realizes efficient cutting of the workpiece, the tool head 16 is detachably mounted on the tool rest 12 through the threaded connection with the positioning hole 15, is convenient for individual replacement when worn or damaged, reduces the overall replacement cost of the tool, prolongs the service life of the tool, improves the economy and practicality of the tool.

[0028] The outer wall of the fixed seat 1 is fixedly connected with a snap ring 5, the inner wall of the snap ring 5 is inserted with a conveying pipe 6, the other end of the conveying pipe 6 is inserted with an end of a spray head 17, the inner wall of the cutter seat 11 is detachably connected with the spray head 17, one end of the spray head 17 is provided with a drain hole 18, the snap ring 5 is fixed on the outer wall of the fixed seat 1, which provides a stable insertion position for the conveying pipe 6, ensures that the conveying pipe 6 can be firmly connected on the fixed seat 1, and makes the cooling liquid smoothly transmitted to the spray head 17, which provides a necessary pipeline connection foundation and support structure for the subsequent cooling and chip removal functions, ensures the normal operation of the cooling system, the conveying pipe 6 as a transmission channel of the cooling liquid connects the external cooling liquid source with the spray head 17, and the cooling liquid is conveyed from the outside to the spray head 17, so that the cooling liquid can smoothly flow in the cutter and reach the cutting area, realizes the cooling and chip removal auxiliary effect on the cutting process, effectively reduces the cutting temperature and promotes the discharge of the chips, and prevents the adverse effects of overheating of the cutter and accumulation of the chips on the machining quality.

[0029] The cooperation of the spray head 17 and the drain hole 18 can directly affect the spraying effect and chip removal capacity of the cooling liquid, which can generate high-pressure and uniformly distributed cooling liquid jet, on the one hand, effectively reduces the cutting temperature, reduces the tool wear and workpiece thermal deformation, on the other hand, uses the impact of the cooling liquid to make the chips break and be timely washed away from the cutting area, prevents the chips from winding around the cutter and scratching the hole wall, ensures the machining surface quality and the smooth progress of the machining process, and improves the machining performance and stability of the cutter.

[0030] In summary, the diamond internal chip removal deep hole drill cutter has the following use steps:

[0031] 1. First, insert the extension cylinder 3 into the mounting hole 2 of the fixed seat 1, then pass the rotating pressure rod 4 to make one end penetrating into the mounting hole 2 tightly abut against the outer wall of the extension cylinder 3, so as to tightly connect the extension cylinder 3 to the inner wall of the mounting hole 2, after fixing the threaded cylinder 7 at one end of the positioning shaft 8 with the extension cylinder 3, put the connecting cylinder 10 on the positioning shaft 8, and make the outer surface of the connecting cylinder 10 threadedly connected with the fixed ring 9 on the outer surface of the threaded cylinder 7, tighten the fixed ring 9 to stably install the connecting cylinder 10, threadedly pass the fixed bolt 14 through the outer surface of the tool holder 12 to install the cutting blade 13, and threadedly connect the tool head 16 in the positioning hole 15 in the middle of the end of the tool holder 12, complete the assembly of the cutter, and finally install the assembled cutter on the corresponding tool holder of the machine tool to ensure firm installation and accurate positioning;

[0032] 2. Turn on the cooling liquid supply system of the lathe, the cooling liquid flows into the spray head 17 through the conveying pipe 6, and is sprayed to the cutting area in a high-pressure state from the drain hole 18, control the machine tool workbench or the cutter to feed along the axial direction, so that the tool head 16 and the cutting blade 13 gradually cut into the workpiece, and start drilling;

[0033] 3. Monitor the cutting performance of the tool. If the machining precision is found to decrease, such as the hole diameter becoming larger, the roughness of the hole wall becoming worse, or the cutting force abnormally increasing, it is possible that the tool is worn. At this time, the machining can be paused, and the wear of the blade 13 and the tool head 16 is checked. When the blade 13 or the tool head 16 is worn to a certain extent and affects the machining quality, the machining is stopped, the fixing bolt 14 is unscrewed, the worn blade 13 is replaced, or the worn tool head 16 is unscrewed from the positioning hole 15 and a new tool head 16 is installed.

[0034] The above is only for the purpose of illustrating the present application, and it should be understood that the present application is not limited to the above embodiments, and various modifications in accordance with the idea of the present application are within the scope of the present application.

Claims

1. A diamond internal chip removal deep hole drilling tool, comprising a fixed seat (1), characterized in that: The end of the fixing seat (1) is provided with a mounting hole (2), the inner wall of the mounting hole (2) is plugged with an extension tube (3), the end of the extension tube (3) is fixedly connected to a threaded tube (7), the end of the threaded tube (7) is fixedly connected to a positioning shaft (8), the outer surface of the positioning shaft (8) is detachably connected to a connecting tube (10), the end of the connecting tube (10) is fixedly connected to a knife seat (11), the end of the knife seat (11) is fixedly connected to a knife holder (12), the outer surface of the knife holder (12) is detachably connected to a blade (13), the middle part of the end of the knife holder (12) is detachably connected to a knife head (16), the inner wall of the knife seat (11) is detachably connected to a nozzle (17), and one end of the nozzle (17) is provided with a drainage hole (18).

2. The diamond internal chip removal deep hole drill tool according to claim 1, characterized in that: Both sides of the outer surface of the fixing seat (1) are threaded with a pressure rod (4), and one end of the pressure rod (4) penetrates into the mounting hole (2) and presses against the outer wall of the extension tube (3), so that the extension tube (3) is firmly connected to the inner wall of the mounting hole (2).

3. The diamond internal chip removal deep hole drill tool according to claim 1, characterized in that: The outer wall of the fixing seat (1) is fixedly connected with a clamping ring (5), the inner wall of the clamping ring (5) is plugged with a delivery pipe (6), and the other end of the delivery pipe (6) is plugged with the end of the nozzle (17).

4. The diamond internal chip removal deep hole drill tool according to claim 1, characterized in that: The outer surface of the threaded cylinder (7) is threadedly connected to a fixing ring (9), and the outer surface of the connecting cylinder (10) is threadedly connected to the inner wall of the fixing ring (9).

5. The diamond internal chip removal deep hole drill tool according to claim 1, characterized in that: The outer surface of the blade (13) is threadedly penetrated by a fixing bolt (14); one end of the fixing bolt (14) passes through the blade (13) and is threadedly connected to the outer surface of the tool holder (12).

6. The diamond internal chip removal deep hole drill tool according to claim 1, characterized in that: A positioning hole (15) is provided in the middle of the end of the tool holder (12), and the inner wall of the positioning hole (15) is threadedly connected to the end of the tool head (16).

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