CN201353656Y - Vertical CNC Deep Hole Drilling Machine - Google Patents

Abstract

The utility model provides a vertical numeric-control deep hole drilling machine, which comprises a fixed guide rail (1), a movable guide rail (2), a Z-shaped planker (3), a movable rail feeding motor (4), a movable rail feeding lead screw (41), a Z-shaped planker feeding motor (5), a Z-shaped planker feeding lead screw (51), a drilling machine box (6), a positioning slag-discharging compactor (7), a drilling rod central bracket (8), a hydraulic stabilizer (9) and a deep hole drill bit (01). The utility model adopts the technical proposal that a Z-shaft vertical system is modified on the basis of the prior vertical numeric-control milling machine, which overcomes the problems and weaknesses of the prior art that the positioning centering craftwork is complex, and the work load is large, and the auxiliary work time is long, and the drill hole is easy to have string vibration, and the precision is low. The vertical numeric-control deep hole drilling machine utilizes the vertical drilling craftwork to perform the deep hole processing, so that the fine and long deep hole drilling rod is consistent with the acting direction of the gravity, thereby preventing the string vibration, and realizing the convenient positioning and centering, less auxiliary work hours and high drilling precision during the drilling process of the ultra-fine deep hole.

Description

Vertical CNC Deep Hole Drilling Machine

technical field

The utility model relates to a metal cutting machine tool, in particular to a vertical numerical control deep hole drilling machine used in injection mold manufacturing and processing equipment

Background technique

Injection molds often need to drill ultra-fine deep holes (holes with a length-to-diameter ratio greater than 30:1 are deep holes) during manufacturing and processing. The length-to-diameter ratio of the drilled holes usually exceeds 90:1. Horizontal drilling is commonly used in existing processing techniques. Before horizontal drilling, the process of positioning and alignment is cumbersome, the workload is large, and the auxiliary man-hours are many, and the horizontal drilling process makes the slender deep-hole drill rods subject to gravity. It is very prone to "string vibration" (vibration like a string), and the accuracy of drilling often fails to meet the requirements.

As mentioned above, the existing technology has the problems and deficiencies of cumbersome positioning and alignment process, heavy workload, many auxiliary man-hours, prone to "string vibration" in drilling, and low precision.

Contents of the invention

Aiming at the deficiencies of the above-mentioned existing prior art, the utility model adopts the technical scheme of refitting the Z-axis (vertical) system on the basis of the existing vertical CNC milling machine, and provides a vertical CNC deep hole drilling machine, which aims to use vertical The deep hole processing is carried out with the advanced drilling technology, so that the slender deep hole drill pipe is in the same direction as the gravity, so as to achieve the purpose of convenient positioning and alignment when drilling ultra-thin deep holes, less auxiliary man-hours, and the drilling accuracy meets the requirements.

The purpose of this utility model is achieved in this way: a vertical numerical control deep hole drilling machine includes a fixed guide rail, a moving guide rail, a Z carriage, a moving rail feed motor, a moving rail feed screw rod, a Z plate feed motor, and a Z plate Feed screw, drilling machine box, positioning chip removal compactor, drill pipe steady frame, hydraulic stabilizer, deep hole drill bit, wherein: the fixed guide rail is a long and rectangular member, and one side is a middle with a rectangular The guide rail of the long groove, the other side is a flat plate, the upper end is equipped with an assembly platform, and the lower end is open; the moving guide rail is a long rectangular member, one side is a guide rail with a rectangular long groove running through both ends in the middle, and the other side is a guide rail groove and There is a screw nut in the middle of the bottom of the guide rail groove, an assembly platform is installed on the upper end, and the lower end is open; one side of the Z carriage is an assembly platform, and the other side is a guide rail groove, and a screw nut is provided in the middle of the bottom of the guide rail groove. ; The moving rail feed motor is a numerically controlled stepping servo motor; the moving rail feeding screw is a transmission screw;

The Z-plate feed motor is a CNC servo motor; the Z-plate feed screw is a transmission screw; the shape of the drilling rig box is a rectangular component assembly integrating drive, transmission, and cooling channel mechanism. There is a sealed drill chuck, the side wall is equipped with a drilling power motor, and the top is equipped with a high-pressure coolant inlet connected to the high-pressure coolant pump of the coolant tank through a hose; the positioning chip compactor is a rectangular box in shape One side is provided with a guide rail groove, the left adjacent side is provided with a chip outlet connected to the chip liquid separation basket placed in the coolant tank through a hose, and the right adjacent side is provided with a tube connected to the coolant tank through a hose The high-pressure water jet gun connected to the high-pressure cooling pump has a removable and replaceable drill pipe hole sealer on the top, a drill pipe positioner inside, and a compression rubber sleeve at the bottom opening; the drill pipe center frame is the bottom of the frame There is a guide rail groove, a brake screw is provided on the foot of the frame, and a center bracket of a rolling device with a fixed axis is provided in the center of the upper part of the frame;

The hydraulic stabilizer is a damping component composed of an oil cylinder, a piston, a piston head, hydraulic oil and an internal closed-loop oil circuit; the deep hole drill bit is a slender cylindrical drilling tool, and the center of the drill pipe is provided with a through hole. The cylindrical surface is provided with an arc groove along the axial direction, and the edge of the arc groove of the drill head is provided with an arc-shaped axial cutting edge.

Assembly (mutual positional relationship): Fix the moving rail feed motor on the assembly platform of the fixed guide rail, connect one end of the moving rail feed screw placed in the rectangular long groove of the fixed guide rail through a coupling; Insert the groove into the guide rail of the fixed guide rail, screw the other end of the feed screw of the moving rail through the screw nut of the moving guide rail, and fix this end in the rectangular slot of the fixed guide rail with the screw bracket Fix the Z plate feed motor on the assembly platform of the moving guide rail, and connect one end of the Z plate feed screw rod placed in the rectangular long groove of the moving guide rail through a coupling; Insert and push upward along the open guide rail at the lower end of the moving guide rail, screw the other end of the Z plate feed screw through the screw nut of the Z carriage, and fix this end in the rectangular slot of the moving guide rail with the screw bracket; The chassis is fixed downward on the assembly platform of the Z pallet along the axial direction of the drill chuck; the guide rail groove of the drill pipe center frame is inserted upward along the open guide rail at the lower end of the moving guide rail, and the brake screw is tightened to fix it; The guide rail groove of the tensioner is inserted upward along the open guide rail at the lower end of the movable guide rail, pushed to be flush with the lower end of the movable guide rail, and then tightened to fix the brake screws; the axis of the fixed guide rail is perpendicular to the beam (X axis), and the flat surface at the lower end of the fixed guide rail Fix it on the X carriage of the beam (X axis) with screws; fix the cylinders of the two hydraulic stabilizers on the two sides of the X carriage with screws perpendicular to the axis, and fix the piston head on the On the reserved holes on the two sides of the assembly platform of the moving guide rail; connect the high-pressure cooling pipe to the high-pressure coolant inlet, and finish.

Working principle: When working, start the moving rail feed motor to drive the moving rail feed screw, and drag the moving rail to rise upward; start the Z plate feed motor to drive the Z plate feed screw, and drag the Z carriage to rise upwards ;Pass the deep hole drill with the cutting edge facing downwards and the tail facing upwards, and position the compression rubber sleeve of the chip removal compactor, the drill pipe positioner, the drill pipe entry sealer, and the rolling device of the drill pipe steady frame to the drill bit. The drill chuck of the chassis is clamped; at this time, the cutting edge of the drill bit should be on the compression rubber sleeve of the positioning chip compactor; after the workpiece to be processed is fixed on the workbench (Y axis), the numerical control system according to the input numerical control Coordinate origin, operating program, drive the servo motors of the X-axis and Y-axis systems to drag the respective pallets - X pallet, worktable (Y-axis) - to move, and move the deep hole drill on the Z pallet to the specified position. At a predetermined space point, that is, the position above the hole position; in turn, start the moving rail feed motor to drive the moving rail feed screw, lower the moving rail, and make the compression rubber sleeve of the positioning chip removal compactor press the hole position of the workpiece, Lock; start the drilling power motor to drive the deep hole drill to rotate; start the high-pressure cooling pump, the high-pressure coolant passes through the high-pressure coolant inlet, the center through hole of the deep hole drill to the center of the drill edge, and flows out from the chip discharge port; start The Z plate feed motor drives the Z carriage to feed the hole downwards according to the feed rate preset by the program; during work, the drill pipe steady frame and the positioning chip removal compactor play the role of dynamic centering and supporting the deep hole drill bit. Function: The iron chips produced by drilling and cutting are punched out of the deep hole by the high-pressure coolant punched out from the center of the drill bit edge along the arc groove of the drill pipe cylinder and the channel formed by the hole wall. The mixture of coolant and iron chips rushed out of the deep hole is collected into the chip discharge port, and the high-pressure coolant jet sprayed by the high-pressure water jet gun installed on the right side is washed into the chip liquid separation basket in the coolant tank through the hose. The coolant flows back to the coolant pool for recycling; the slender deep-hole drill pipe is consistent with the direction of gravity, which effectively eliminates the "string vibration" and hole eccentricity of the ultra-slender deep-hole drill bit, and the hydraulic stabilizer 9 The damping effect stabilizes the feed rate of the moving guide rail up and down, eliminating the phenomenon of jitter and "jump".

In summary, the utility model adopts the technical scheme of refitting the Z-axis (vertical) system on the basis of the existing vertical numerical control milling machine, and provides a kind of vertical numerical control deep hole drilling machine, which realizes vertical drilling The process of deep hole processing makes the slender deep hole drill pipe consistent with the direction of gravity, avoids the occurrence of "string vibration", and achieves convenient positioning and alignment when drilling ultra-fine deep holes, less auxiliary man-hours and satisfactory drilling accuracy. the purpose of the request.

Description of drawings

Fig. 1 is the front view of the structural principle of a kind of numerical control deep hole drilling machine of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a cross-sectional view of the cooperation between the fixed guide rail, the moving guide rail and the Z carriage parts of the present invention;

Fig. 4 is a cross-sectional view of a deep hole drill bit;

Fig. 5 is the schematic diagram of the working state of a kind of digital control deep hole drilling machine of the present invention;

Fig. 6 is the actual modeling drawing of a kind of numerical control deep hole drilling machine of the present utility model.

The utility model will be described in further detail below in conjunction with the embodiments in the accompanying drawings, but it should not be construed as any limitation to the utility model.

In the figure: fixed guide rail 1, moving guide rail 2, Z carriage 3, moving rail feed motor 4, moving rail feed screw 41, Z plate feed motor 5, Z plate feed screw 51, drilling machine box 6, Drilling power motor 61, drill chuck 62, high-pressure coolant inlet 63, positioning chip removal compactor 7, compression rubber sleeve 71, chip removal port 72, drill pipe entry hole sealer 73, high-pressure water jet 74, drill Rod center frame 8, hydraulic stabilizer 9, deep hole drill 01, workpiece 02, coolant tank 03, bed 04, column 05, workbench 06, beam 07, X carriage 08, CNC system 09.

Detailed ways

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a vertical numerical control deep hole drilling machine of the present utility model includes a fixed guide rail 1, a moving guide rail 2, a Z carriage 3, and a moving rail feed motor 4. Moving rail feed screw 41, Z plate feed motor 5, Z plate feed screw 51, drilling rig box 6, positioning chip removal compactor 7, drill pipe center frame 8, hydraulic stabilizer 9, deep hole Drill bit 01, wherein: the fixed guide rail 1 is a long rectangular member, one side is a guide rail with rectangular long grooves running through both ends in the middle, and the other side is a flat plate, the upper end is equipped with an assembly platform, and the lower end is open; the moving guide rail 2 is a long rectangular member, one side is a guide rail with rectangular long grooves running through both ends in the middle, the other side is a guide rail groove and a screw nut is provided at the middle of the bottom of the guide rail groove, the upper end is equipped with an assembly platform, and the lower end is open; One side of the Z carriage 3 is an assembly platform, and the other side is a guide rail groove and a rectangular member with a screw nut at the middle of the bottom of the guide rail groove; the moving rail feed motor 4 is a numerically controlled stepping servo motor; the moving rail The feed screw mandrel 41 is a transmission screw mandrel; the Z plate feed motor 5 is a numerically controlled servo motor; the Z plate feed screw mandrel 51 is a transmission screw mandrel; Assemblies of drive, transmission, and cooling channel mechanisms, the bottom is equipped with a sealed drill chuck 62, the side wall is equipped with a drilling power motor 61, and the top is equipped with a high-pressure coolant inlet 63 and a high-pressure coolant pump through the hose and coolant tank 03 connected; the positioning chip compactor 7 is a component assembly with a rectangular box shape, one side is provided with a guide rail groove, and the left side is provided with a chip discharge port 72 through the hose and the chips placed in the coolant tank 03 The liquid separation baskets are connected, and the right adjacent side is provided with a high-pressure water jet 74 connected to the high-pressure cooling pump of the coolant tank 03 through a hose, and a detachable and replaceable drill pipe entry hole sealer 73 is provided on the top, and a drill pipe is provided inside. Rod positioner, the bottom opening is provided with a compression rubber sleeve 71; the drill pipe center frame 8 is provided with guide rail grooves at the bottom of the frame, brake screws are provided on the frame foot surface, and a rolling device with a fixed axis center is provided at the center of the upper part of the frame body The center bracket; the hydraulic stabilizer 9 is a damping component composed of an oil cylinder, a piston, a piston head, hydraulic oil and an internal closed-loop oil circuit; the deep hole drill bit 01 is an elongated cylindrical drilling tool, a drill A through hole is arranged in the center, an arc groove is arranged on the cylindrical surface along the axial direction, and an arc-shaped axial cutting edge is arranged on the edge of the arc groove of the drill head.

Assembly (mutual positional relationship): fix the moving rail feed motor 4 on the assembly platform of the fixed guide rail 1, and connect one end of the moving rail feed screw 41 placed in the rectangular slot of the fixed guide rail 1 through a coupling; Insert the guide rail groove of the moving guide rail 2 into the guide rail of the fixed guide rail 1, screw the other end of the feed screw of the moving rail through the screw nut of the moving guide rail 2, and fix this end in the rectangular slot of the fixed guide rail 1 with the screw bracket (Fix it with the hexagon socket head screw countersunk head from the back); fix the Z plate feed motor 5 on the assembly platform of the moving guide rail 2, and connect the Z plate feed wire placed in the rectangular long groove of the moving guide rail 2 through the coupling One end of the rod 51; the guide rail groove of the Z carriage 3 is inserted upward along the open guide rail at the lower end of the moving guide rail 2, and the other end of the Z board feed screw 51 is screwed through the screw nut of the Z carriage 3, and the Fix the end of the bracket in the rectangular long groove of the moving guide rail 2; fix the drilling machine box 6 on the assembly platform of the Z carriage 3 downward along the axial direction of the drill chuck 62; The guide rail with the open lower end of the moving guide rail 2 is inserted and pushed upwards, and the brake screw is tightened to fix it; the guide rail groove of the positioning chip removal compactor 7 is inserted upward along the open guide rail at the lower end of the moving guide rail 2, and pushed until it is flush with the lower end of the moving guide rail 2, Tighten the brake screws to fix it; the axis of the fixed guide rail 1 is perpendicular to the beam 07, and the flat surface at the lower end of the fixed guide rail 1 is fixed on the X carriage 08 of the beam 07; Use screws to fix the two sides of the X carriage 08 respectively, and use nuts to fix the piston head on the reserved hole on the two sides of the assembly platform of the moving guide rail 2; connect the high-pressure cooling pipe to the high-pressure coolant inlet 63, complete.

Working principle: When working, start the moving rail feed motor 4 to drive the moving rail feed screw 41, drag the moving guide rail 2 to rise upward; start the Z plate feed motor 5 to drive the Z plate feed screw 51, and drag the Z plate feed screw 51. Lift the carriage 3 upwards; pass the deep hole drill bit 01 with the cutting edge downward and the tail upward, and position the compression rubber sleeve 71 of the chip removal compactor 7, the drill pipe positioner, and the drill pipe entry hole sealer 73 1. The rolling device of the drill rod center frame 8 is clamped to the drill chuck 62 of the drilling machine box 6; at this time, the cutting edge of the drill bit should be on the compression rubber sleeve 71 of the positioning chip removal compactor 7; the processed workpiece 02 After being fixed on the workbench 06, the CNC system 09 drives the servo motors of the X-axis and Y-axis systems according to the input NC coordinate origin and the operating program to drag the respective carriages—the X carriage 08 and the workbench 06 to move, and drag the Z The deep hole drill bit 01 on the plate 3 moves to the space point given by the instruction, that is, the position above the hole position; in turn, start the moving rail feed motor 4 to drive the moving rail feeding screw 41, and lower the moving rail 2 to make the positioning The compression rubber sleeve 71 of the chip removal compactor 7 compresses the hole position of the workpiece 02 and locks it; starts the drilling power motor 61 to drive the deep hole drill 01 to rotate; starts the high-pressure cooling pump, and the high-pressure coolant passes through the high-pressure coolant inlet 63, The center of the deep hole drill 01 punches out from the center of the drill edge to the center of the drill bit, and flows out from the chip discharge port 72; start the Z plate feed motor 5 to drive the Z drag plate 3 to feed the hole downwards according to the feed rate preset in the program ;During work, the slender deep hole drill pipe is in the same direction as the gravity, which effectively eliminates the "string vibration" and hole eccentricity of the super slender deep hole drill bit 01. The drill pipe steady frame 8, positioning chip removal pressure The tightening device 7 plays the role of dynamic centering and supporting the deep hole drill bit; the iron filings generated by drilling and cutting, the high-pressure coolant punched out from the center of the drill bit edge along the channel formed by the arc groove of the drill pipe cylinder and the hole wall Punch out of the deep hole, and under the resistance of the compression rubber sleeve, the mixture of coolant and iron filings out of the deep hole is collected into the chip discharge port 72, and the high-pressure coolant jet sprayed by the high-pressure water jet gun 74 arranged on the right side, Flush into the chip liquid separation basket in the coolant tank 03 through the hose, and the coolant flows back to the coolant pool for recycling; the damping effect of the hydraulic stabilizer 9 stabilizes the feed rate of the moving guide rail 2 up and down, eliminating jitter and " jumping" phenomenon.

Claims (1)

1, vertical numerical control deep hole drilling machine, comprise and decide guide rail (1), moving guide rail (2), Z planker (3), moving rail feeding motor (4), moving rail feed screw (41), Z plate feeding motor (5), Z plate feed screw (51), rig case (6), location chip removal compactor (7), drilling rod centre frame (8), hydraulic pressure stabilizer (9), deep hole drill (01), it is characterized in that: describedly decide guide rail (1) and be long rectangular-shaped member, one side is the middle guide rail that is provided with the rectangle elongated slot that runs through two ends, another side is dull and stereotyped, mounting plate is equipped with in the upper end, and the lower end is opened wide; Described moving guide rail (2) is long rectangular-shaped member, and one side is the middle guide rail that is provided with the rectangle elongated slot that runs through two ends, and another side is that middle section position is provided with the feed screw nut at the bottom of guide-track groove and the guide-track groove, and mounting plate is equipped with in the upper end, and the lower end is opened wide; Described Z planker (3) one side is a mounting plate, and another side is the rectangular elements that middle section position is provided with the feed screw nut at the bottom of guide-track groove and the guide-track groove; Described moving rail feeding motor (4) is the numerical control step-servo motor; Described moving rail feed screw (41) is a drive lead screw; Described Z plate feeding motor (5) is the numerical control servo motor; Described Z plate feed screw (51) is a drive lead screw; Described rig case (6) profile is collection driving, the transmission of rectangle, the component assembly of cooling duct mechanism, the bottom is provided with sealing drill chuck (62), the Side wall has boring power motor (61), and the top is provided with high-pressure coolant import (63) and links to each other by the high pressure coolant pump of flexible pipe with tank for coolant (03); Described location chip removal compactor (7) is the component assembly of rectangular box for profile, one side is provided with guide-track groove, the adjacent Side face in a left side is provided with chip removal mouth (72) to be separated with the bits liquid that places tank for coolant (03) by flexible pipe and basket joins, be provided with the water jetting at high pressure rifle (74) that links to each other with the high pressure coolant pump of tank for coolant (03) by flexible pipe in the right adjacent Side face, the top is provided with the drilling rod hand-hole sealer (73) that can load and unload transposing, inside is provided with the drilling rod locator, and bottom opening is provided with compress rubber cover (71); Described drilling rod centre frame (8) is provided with guide-track groove for the frame sole, and the frame instep is provided with the tight screw of stopping, and the support body central upper portion is provided with the center bearing bracket of the tourelle of the dead axle heart; The damped part of described hydraulic pressure stabilizer (9) for constituting by oil cylinder, piston, piston head, hydraulic oil and inner closed loop oil circuit; Described deep hole drill (01) is elongated cylindrical boring cutlery, and the drilling rod center is provided with through hole, and cylinder is provided with arc groove vertically, and the circular arc trough rim of bit head is provided with arc shaft to cutting edge; Described each parts mutual alignment and annexation are that moving rail feeding motor (4) is fixed on the mounting plate of deciding guide rail (1), connects an end that places the moving rail feed screw (41) of deciding guide rail (1) rectangle elongated slot by shaft joint; The guide-track groove of moving guide rail (2) inserts to be decided on the guide rail of guide rail (1), and the other end of moving rail feed screw revolved the feed screw nut of moving guide rail (2), with the screw mandrel support this end was fixed on and decided in guide rail (1) the rectangle elongated slot; Z plate feeding motor (5) is fixed on the mounting plate of moving guide rail (2), connects an end of the Z plate feed screw (51) of the rectangle elongated slot that places moving guide rail (2) by shaft joint; The guide rail that the guide-track groove of Z planker (3) opens wide along moving guide rail (2) lower end upwards inserts and advances, and the other end of Z plate feed screw (51) revolved the feed screw nut of Z planker (3), this end was fixed in the rectangle elongated slot of moving guide rail (2) with the screw mandrel support; Rig case (6) axially is fixed on the mounting plate of Z planker (3) down along drill chuck (62); The guide rail that the guide-track groove of drilling rod centre frame (8) opens wide along moving guide rail (2) lower end upwards inserts and advances, and tightens the tight screw of stopping and fixes; The guide-track groove of location chip removal compactor (7) upwards inserts along moving guide rail (2) lower end, is advanced into concordantly with the lower end of moving guide rail (2), tightens the tight screw of stopping and fixes; The axis of deciding guide rail (1) is vertical with crossbeam (07), and the platen surface of deciding guide rail (1) lower end is fixed on the X planker (08) of crossbeam (07) with screw; Vertically, be separately fixed at screw on two Side limits of X planker (08), with nut the piston head of hydraulic pressure stabilizer (9) be fixed on the preformed hole on mounting plate two Side limits of moving guide rail (2) the cylinder body of two hydraulic pressure stabilizers (9); Connect the high pressure cooling tube to high pressure cooling liquid inlet (63).

Images