Deep hole drilling equipment based on lathe

Abstract

The utility model relates to deep hole drilling equipment based on a lathe, which relates to the field of deep hole drilling and comprises the lathe and a deep hole drilling mechanism, the lathe is provided with a lathe frame, a three-jaw chuck and a feed frame, the three-jaw chuck is rotatably connected with the lathe frame, and the feed frame is slidably connected with the lathe frame. The deep hole drilling mechanism comprises two deep hole drill bits, a gas pulse assembly and a liquid pulse assembly, one deep hole drill bit is detachably connected with the feeding frame, gas-liquid through holes are formed in the deep hole drill bits, and the gas-liquid through holes of the two deep hole drill bits are communicated with the gas pulse assembly and the liquid pulse assembly respectively. The device has the beneficial effects that the idle lathe is transformed and upgraded, so that the production pressure of deep hole machining of parts is relieved, and on-time delivery of deep hole drilling products of part machining lines during peak seasons is ensured. The method is especially suitable for batch processing of non-ferrous metal and other materials and small-batch production of medium-carbon alloy steel.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep hole drilling field, concretely relates to a deep hole drilling equipment based on lathe. BACKGROUND

[0002] The existing deep hole drilling machine process equipment in the factory building is less, and the processing task is nervous, cannot satisfy the order of the increasing production line, causes the processing product to be overstocked, seriously influences the processing efficiency. And the old ordinary lathe in the early stage has been idle because of long time use, poor precision and other reasons. Therefore, the ordinary lathe can be changed into deep hole drilling machine, as the backup scheme of the existing deep hole drilling. SUMMARY

[0003] The utility model solves the technical problem that how to transform the lathe into deep hole drilling machine.

[0004] The utility model provides a kind of deep hole drilling equipment based on lathe, including lathe and deep hole drilling mechanism, the lathe has lathe frame, three-jaw chuck and tool rest, the three-jaw chuck is rotatably connected with the lathe frame, the tool rest is slidably connected with the lathe frame, the deep hole drilling mechanism includes two deep hole drill bits, gas pulse assembly and liquid pulse assembly, one of the deep hole drill bits is detachably connected with the tool rest, the deep hole drill bit has gas-liquid through hole, the gas-liquid through hole of two deep hole drill bits is communicated with the gas pulse assembly and the liquid pulse assembly respectively.

[0005] The utility model has the advantages that: using the method of deep hole drill bit non-rotation, workpiece rotation processing, lathe spindle rotation, three-jaw chuck clamps the workpiece to be processed and rotates, deep hole drill bit is fixed on tool rest and carries out tool walking, realizes drilling. The gas-liquid through hole of two deep hole drill bits is communicated with the gas pulse assembly and the liquid pulse assembly respectively, and the gas-liquid through hole can provide airflow or cooling liquid during processing, so as to realize chip removal and cooling, according to the processing requirement, one of deep hole drill bits is selected and installed on tool rest. Through the transformation and upgrading of idle lathe, the production pressure of part deep hole processing is relieved, and the timely delivery of part processing line drilling deep hole product during peak season is guaranteed. Especially suitable for batch processing of non-ferrous metals and other materials and small batch production of medium carbon alloy steel.

[0006] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0007] Further, the deep hole drilling equipment based on lathe further includes a center stand, the center stand is fixedly connected with the lathe frame and located between the three-jaw chuck and the tool rest.

[0008] The beneficial effect of adopting the further scheme is that: if only relying on the three-jaw chuck to clamp the workpiece to be processed, the three-jaw chuck is easy to loosen after long-time processing, poor in durability, causing size deviation of the workpiece to be processed, and seriously affecting the production efficiency and increasing the repair cost. In the scheme, the center frame is added, the axis of the hole to be processed is coaxial with the lathe spindle, the workpiece to be processed can be reliably clamped, the workpiece to be processed is prevented from being deflected, the machining precision is improved, and the quality and efficiency requirements in the production process are met.

[0009] Further, the lathe-based deep hole drilling equipment further comprises a gun drill fixing seat fixedly connected with the tool rest, and one of the deep hole drills is detachably connected with the gun drill fixing seat.

[0010] Further, the gas pulse assembly comprises, in sequence, a power gas source inlet joint, an air compressor, a gas pipeline and a gas path tool holder, the gas path tool holder is fixedly connected with one of the deep hole drills and is in communication, and the gas path tool holder is detachably connected with the tool rest.

[0011] The beneficial effect of adopting the further scheme is that: the power gas source inlet joint is used for connecting with an external gas source or introducing air, the air compressor provides power to output the gas to the deep hole drill through the gas pipeline and the gas path tool holder.

[0012] Further, the gas pulse assembly further comprises a gas path tool holder screw and a taper shank, one end of the gas path tool holder is provided with a gas path mounting hole, the end of the corresponding deep hole drill is inserted into the gas path mounting hole, one end of the gas path tool holder screw passes through the gas path tool holder and abuts against the side wall of the corresponding deep hole drill, the gas path tool holder screw is threadedly connected with the gas path tool holder, the other end of the gas path tool holder is fixedly connected with the taper shank, and the gas path tool holder is detachably connected with the tool rest through the taper shank.

[0013] The beneficial effect of adopting the further scheme is that: the deep hole drill is locked with the gas path tool holder through the gas path tool holder screw, and the gas path tool holder is connected with the tool rest through the taper shank.

[0014] Further, the air outlet of the air compressor is provided with a gas source input pressure gauge.

[0015] The beneficial effect of adopting the further scheme is that: the air pressure output by the air compressor can be read through the gas source input pressure gauge.

[0016] Further, the liquid pulse assembly comprises, in sequence, a cooling liquid injection inlet joint, a pneumatic pulse pump, a liquid pipeline, an atomization adjusting valve and a liquid path tool holder, the liquid path tool holder is fixedly connected with the other deep hole drill and is in communication, and the liquid path tool holder is detachably connected with the tool rest.

[0017] The beneficial effect of the further scheme is that the cooling liquid injection port joint is used for connecting with a pipeline for supplying cooling liquid and injecting or supplementing the cooling liquid. The pneumatic pulse pump delivers the cooling liquid in the form of pulses to the cutting area of the deep hole drill bit through the liquid pipeline, the atomization adjusting valve and the liquid clamp by pneumatic pressurization, which helps to reduce the temperature of the deep hole drill bit and the workpiece and prevent the deep hole drill bit from being worn or the workpiece from being deformed due to overheating.

[0018] Further, the cooling liquid injection port joint and the pneumatic pulse pump are further connected with a liquid storage tank.

[0019] The beneficial effect of the further scheme is that the liquid storage tank is used for storing the cooling liquid to ensure the supply of the cooling liquid.

[0020] Further, the liquid pulse assembly further comprises a liquid clamp cutter screw, a pulse output pressure gauge and a pulse pressure adjusting valve. One end of the liquid clamp cutter screw is inserted into the liquid clamp and abuts against the sidewall of the corresponding deep hole drill bit, and the liquid clamp cutter screw is threadedly connected with the liquid clamp. The liquid outlet of the pneumatic pulse pump is sequentially communicated with the pulse pressure adjusting valve, the pulse output pressure gauge and the liquid pipeline.

[0021] The beneficial effect of the further scheme is that the liquid clamp and the corresponding deep hole drill bit are locked by the liquid clamp cutter screw, which is convenient to disassemble and assemble. The output pressure after the pulse pressure adjusting valve can be read by the pulse output pressure gauge, and the output pressure is adjusted by the pulse pressure adjusting valve.

[0022] Further, the deep hole drilling mechanism further comprises an integrated equipment shell, and the power source inlet joint, the air compressor, the cooling liquid injection port joint and the pneumatic pulse pump are all mounted on the integrated equipment shell.

[0023] The beneficial effect of the further scheme is that multiple devices are integrated on the integrated equipment shell, which has high integration degree and is convenient to operate and move. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a three-dimensional view of the deep hole drilling equipment based on the lathe from one perspective of the utility model;

[0025] Fig. 2 It is a three-dimensional view of the deep hole drilling equipment based on the lathe from another perspective of the utility model;

[0026] Fig. 3 It is a structural schematic view of the deep hole drilling mechanism 3 of the utility model.

[0027] In the drawings, the components represented by the numbers are listed as follows:

[0028] 1. Three-jaw chuck; 2. Center rest; 3. Deep hole drilling mechanism; 301. Deep hole drill bit; 302. Hydraulic tool holder; 303. Hydraulic tool holder screw; 304. Pneumatic tool holder; 305. Pneumatic tool holder screw; 306. Taper shank; 307. Atomizing regulating valve; 308. Power air source inlet connector; 309. Coolant inlet connector; 310. Pulse output pressure gauge; 311. Air source input pressure gauge; 312. Pulse pressure regulating valve; 313. Liquid pipeline; 314. Gas pipeline; 4. Tool holder; 5. Gun drill holder; 100. Workpiece to be processed. Detailed Implementation

[0029] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] like Figs. 1-3 As shown, this embodiment provides a deep hole drilling device based on a lathe, including a lathe and a deep hole drilling mechanism 3. The lathe has a lathe frame, a three-jaw chuck 1, and a tool post 4. The three-jaw chuck 1 is rotatably connected to the lathe frame, and the tool post 4 is slidably connected to the lathe frame. The deep hole drilling mechanism 3 includes two deep hole drill bits 301, a gas pulse assembly, and a liquid pulse assembly. One of the deep hole drill bits 301 is detachably connected to the tool post 4. The deep hole drill bit 301 has a gas-liquid through hole, and the gas-liquid through holes of the two deep hole drill bits 301 are respectively connected to the gas pulse assembly and the liquid pulse assembly.

[0031] The machining process employs a method where the deep hole drill bit 301 remains stationary while the workpiece 100 rotates. The lathe spindle rotates, and the three-jaw chuck 1 clamps the workpiece 100, allowing it to rotate. The deep hole drill bit 301, fixed on the tool holder 4, feeds the material to achieve drilling. The gas-liquid through-holes of the two deep hole drill bits 301 are connected to the gas pulse assembly and the liquid pulse assembly, respectively. During machining, these through-holes can provide airflow or coolant, thus achieving chip removal and cooling. One of the deep hole drill bits 301 is selected and mounted on the tool holder 4 according to the machining requirements. This method upgrades and modifies idle lathes, alleviating production pressure in deep hole machining and ensuring timely delivery of deep hole products during peak seasons. It is particularly suitable for batch processing of non-ferrous metals and small-batch production of medium carbon alloy steel.

[0032] Specifically, during deep hole machining, a guide hole is first machined on the workpiece 100 to guide the deep hole drill bit 301 into the guide hole, and the feed is achieved by the transverse movement of the tool holder 4. This equipment can also machine through holes and blind holes.

[0033] On the basis of the above technical scheme, the deep hole drilling equipment based on the lathe further comprises a center rest 2, which is fixedly connected with the lathe frame and located between the three-jaw chuck 1 and the tool rest 4.

[0034] If only the three-jaw chuck 1 clamps the workpiece 100 to be machined, the three-jaw chuck 1 is prone to loosening after long-time machining, has poor durability, causes size deviation of the workpiece 100 to be machined, and seriously affects the production efficiency and increases the repair cost. In the present scheme, the center rest 2 is added, so that the axis of the hole to be machined is coaxial with the lathe spindle, the workpiece 100 to be machined is reliably clamped, the workpiece 100 to be machined is prevented from being deflected, the machining precision is improved, and the quality and efficiency requirements in the production process are met.

[0035] On the basis of the above technical scheme, the deep hole drilling equipment based on the lathe further comprises a gun drill fixing seat 5, which is fixedly connected with the tool rest 4, and one of the deep hole drill bits 301 is detachably connected with the gun drill fixing seat 5.

[0036] On the basis of the above technical scheme, the gas pulse assembly comprises a power gas source inlet joint 308, an air compressor, a gas pipeline 314 and a gas path tool holder 304 connected in sequence, the gas path tool holder 304 is fixedly connected with and communicates with one of the deep hole drill bits 301, and the gas path tool holder 304 is detachably connected with the tool rest 4.

[0037] The power gas source inlet joint 308 is used to connect with an external gas source or introduce air, and the air compressor provides power to output the gas to the deep hole drill bit 301 through the gas pipeline 314 and the gas path tool holder 304.

[0038] On the basis of the above technical scheme, the gas pulse assembly further comprises a gas path tool holder screw 305 and a taper shank 306, one end of the gas path tool holder 304 is provided with a gas path mounting hole, the end of the corresponding deep hole drill bit 301 is inserted into the gas path mounting hole, one end of the gas path tool holder screw 305 passes through the gas path tool holder 304 and abuts against the side wall of the corresponding deep hole drill bit 301, the gas path tool holder screw 305 is threadedly connected with the gas path tool holder 304, the other end of the gas path tool holder 304 is fixedly connected with the taper shank 306, and the gas path tool holder 304 is detachably connected with the tool rest 4 through the taper shank 306.

[0039] The deep hole drill bit 301 is locked with the gas path tool holder 304 through the gas path tool holder screw 305, so that the installation is facilitated. The gas path tool holder 304 is connected with the tool rest 4 through the taper shank 306.

[0040] On the basis of the above technical scheme, the air compressor is provided with a gas source input pressure gauge 311 at the air outlet.

[0041] The air pressure outputted by the air compressor can be read through the air source input pressure gauge 311.

[0042] On the basis of the above technical solution, the liquid pulse assembly comprises, in sequence, a cooling liquid injection inlet joint 309, a pneumatic pulse pump, a liquid pipeline 313, an atomization adjusting valve 307, and a liquid path tool holder 302, the liquid path tool holder 302 is fixedly connected with and communicates with another deep hole drill 301, and the liquid path tool holder 302 is detachably connected with the tool carriage 4.

[0043] The cooling liquid injection inlet joint 309 is used to connect with a pipeline for supplying cooling liquid and inject or supplement the cooling liquid. The pneumatic pulse pump delivers the cooling liquid in the form of pulses to the cutting area of the deep hole drill 301 through the liquid pipeline 313, the atomization adjusting valve 307, and the liquid path tool holder 302 by pneumatic pressurization, thereby helping to reduce the temperature of the deep hole drill 301 and the workpiece and preventing the deep hole drill 301 from being abraded or the workpiece from being deformed due to overheating.

[0044] On the basis of the above technical solution, a liquid storage tank is further connected between the cooling liquid injection inlet joint 309 and the pneumatic pulse pump.

[0045] The liquid storage tank is used to store the cooling liquid and guarantee the supply of the cooling liquid.

[0046] On the basis of the above technical solution, the liquid pulse assembly further comprises a liquid path tool holder screw 303, a pulse output pressure gauge 310, and a pulse pressure adjusting valve 312, one end of the liquid path tool holder 302 is provided with a liquid path mounting hole, the end portion of the corresponding deep hole drill 301 is inserted into the liquid path mounting hole, one end of the liquid path tool holder screw 303 penetrates through the liquid path tool holder 302 and abuts against the side wall of the corresponding deep hole drill 301, and the liquid path tool holder screw 303 is threadedly connected with the liquid path tool holder 302; the liquid outlet of the pneumatic pulse pump communicates with, in sequence, the pulse pressure adjusting valve 312, the pulse output pressure gauge 310, and the liquid pipeline 313.

[0047] The liquid path tool holder 302 is locked with the corresponding deep hole drill 301 through the liquid path tool holder screw 303, and is convenient to disassemble and assemble. The output pressure after the pulse pressure adjusting valve 312 can be read according to the pulse output pressure gauge 310, and the output pressure is adjusted through the pulse pressure adjusting valve 312.

[0048] On the basis of the above technical solution, the deep hole drilling mechanism 3 further comprises an integrated equipment shell, and the power air source inlet joint 308, the air compressor, the cooling liquid injection inlet joint 309, and the pneumatic pulse pump are all mounted on the integrated equipment shell.

[0049] Multiple devices are integrated on the integrated equipment shell, and the degree of integration is high, which is convenient for operation and movement.

[0050] Further, the integrated device housing bottom is mounted with a plurality of universal wheels.

[0051] Specifically, the machining is performed by using a lathe-based deep hole drilling device, and the basic information of the workpiece 100 to be machined can be achieved.

[0052] Workpiece material: 20CrMnTiH; hardness HB 170-210;

[0053] Maximum machining hole diameter: 40mm;

[0054] Maximum hole depth: 500mm;

[0055] Production batch: suitable for small and medium batch production;

[0056] In one specific embodiment, the workpiece 100 to be machined is installed in the form of a three-jaw chuck + center stand. Clamping is performed manually. In the design stage, the lathe spindle is coaxially arranged with the deep hole drill bit 301, and the workpiece 100 to be machined is supported by the support frame. The coaxiality of the spindle center and the deep hole drill bit 301 is measured and adjusted at stages. The deep hole drill bit 301 is installed in the mounting hole of the corresponding tool holder, and the deep hole drill bit 301 is guided into the hole by the guide hole. The feed motion is provided and completed by the automatic tool path of the tool holder 4. The trial machining power output transmission shaft deep hole drilling process, hole diameter φ10(+0.2 / 0), hole depth 131(+2 / 0), size qualified, fluctuation stable. Among them, the guide hole can be completed by drilling, expanding and reaming, with a depth of 55mm. The cutting fluid is a deep hole water-based cutting fluid containing extreme pressure additives, and the pressure is 8Bar. The cutting parameters are: spindle speed S=500-700r / min, feed speed F=20-30mm / min.

[0057] The beneficial effects are:

[0058] 1. Quality: the machining size is qualified, the product size fluctuation is stable, and there is no machining size out-of-tolerance phenomenon;

[0059] 2. Efficiency: deep hole drilling efficiency is improved by 150%, and the waiting time is avoided, and the monthly average output is improved by 160 pieces;

[0060] 3. Cost: by modifying the idle equipment, the machining precision can meet the use requirements, compared with purchasing a brand new deep hole drill, the cost is saved;

[0061] 4. Innovation: broaden the ideas for dealing with old equipment, adopt three-jaw chuck, center stand form and manual clamping method. The axis of the hole to be machined is coaxial with the lathe spindle, which can improve stability and can be applied to other devices simultaneously.

[0062] In the description of the utility model, it is necessary to explain that, the orientation or position relation indicated by the terms "upper", "lower", "axial", "radial", "circumferential" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.

[0063] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the description of the utility model, 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. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the description and the features of the different embodiments or examples without contradiction.

[0064] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0065] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A lathe-based deep hole drilling apparatus, characterized by, The lathe comprises a lathe and a deep hole drilling mechanism (3), the lathe has a lathe frame, a three-jaw chuck (1) and a tool rest (4), the three-jaw chuck (1) is rotatably connected with the lathe frame, the tool rest (4) is slidably connected with the lathe frame, the deep hole drilling mechanism (3) comprises two deep hole drills (301), a gas pulse assembly and a liquid pulse assembly, one of the deep hole drills (301) is detachably connected with the tool rest (4), the deep hole drill (301) has a gas-liquid through hole, and the gas-liquid through holes of the two deep hole drills (301) are communicated with the gas pulse assembly and the liquid pulse assembly respectively.

2. A lathe-based deep hole drilling apparatus as claimed in claim 1, wherein, The lathe further comprises a center rest (2) fixedly connected with the lathe frame and located between the three-jaw chuck (1) and the tool rest (4).

3. A lathe-based deep hole drilling apparatus as claimed in claim 1, wherein, The lathe further comprises a gun drill fixing seat (5) fixedly connected with the tool rest (4), and one of the deep hole drills (301) is detachably connected with the gun drill fixing seat (5).

4. A lathe-based deep hole drilling apparatus as claimed in claim 1, wherein, The gas pulse assembly comprises a power gas source inlet joint (308), an air compressor, a gas pipeline (314) and a gas tool holder (304) communicated in sequence, the gas tool holder (304) is fixedly connected with and communicated with one of the deep hole drills (301), and the gas tool holder (304) is detachably connected with the tool rest (4).

5. A lathe-based deep hole drilling apparatus as claimed in claim 4, wherein, The gas pulse assembly further comprises a gas tool holder screw (305) and a taper shank (306), one end of the gas tool holder (304) is provided with a gas mounting hole, the end of the corresponding deep hole drill (301) is inserted into the gas mounting hole, one end of the gas tool holder screw (305) penetrates through the gas tool holder (304) and abuts against the side wall of the corresponding deep hole drill (301), the gas tool holder screw (305) is threadedly connected with the gas tool holder (304), the other end of the gas tool holder (304) is fixedly connected with the taper shank (306), and the gas tool holder (304) is detachably connected with the tool rest (4) through the taper shank (306).

6. A lathe-based deep hole drilling apparatus as claimed in claim 4, wherein, An air source input pressure gauge (311) is arranged at the air outlet of the air compressor.

7. A lathe-based deep hole drilling apparatus as claimed in any one of claims 4 to 6, wherein, The liquid pulse assembly comprises a cooling liquid injection inlet joint (309), a pneumatic pulse pump, a liquid pipeline (313), an atomization adjusting valve (307) and a liquid tool holder (302) communicated in sequence, the liquid tool holder (302) is fixedly connected with and communicated with the other deep hole drill (301), and the liquid tool holder (302) is detachably connected with the tool rest (4).

8. A lathe-based deep hole drilling apparatus as claimed in claim 7, wherein, A liquid storage tank is further connected between the cooling liquid injection inlet joint (309) and the pneumatic pulse pump.

9. A lathe-based deep hole drilling apparatus as claimed in claim 7, wherein, The liquid pulse assembly further comprises a liquid path clamp screw (303), a pulse output pressure gauge (310) and a pulse pressure regulating valve (312), one end of the liquid path clamp (302) is provided with a liquid path mounting hole, the end of the corresponding deep hole drill bit (301) is inserted into the liquid path mounting hole, one end of the liquid path clamp screw (303) passes through the liquid path clamp (302) and abuts against the side wall of the corresponding deep hole drill bit (301), the liquid path clamp screw (303) is threadedly connected with the liquid path clamp (302); the liquid outlet of the pneumatic pulse pump is sequentially communicated with the pulse pressure regulating valve (312), the pulse output pressure gauge (310) and the liquid pipeline (313).

10. A lathe-based deep hole drilling apparatus as claimed in claim 7, wherein, The deep hole drilling mechanism (3) further comprises an integrated equipment shell, the power gas source inlet joint (308), the air compressor, the cooling liquid injection inlet joint (309) and the pneumatic pulse pump are all mounted on the integrated equipment shell.

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