CN115635121A

CN115635121A - End face milling machine

Info

Publication number: CN115635121A
Application number: CN202211251688.1A
Authority: CN
Inventors: 石震波
Original assignee: Ningbo Hengfeng Numerically Controlled Machine Co ltd
Current assignee: Ningbo Hengfeng Numerically Controlled Machine Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-01-24

Abstract

The invention discloses an end face milling machine. It includes the host computer body, be equipped with the workstation on the host computer body, be equipped with work piece holder and portal frame on the workstation, be equipped with on the portal frame with work piece holder assorted fixed divide well briquetting, the top of work piece holder is arranged in to the briquetting in the fixed branch, sliding connection about briquetting and the portal frame in the fixed branch, the left and right sides of workstation all has the headstock, headstock and host computer body horizontal sliding connection, be equipped with blade disc and drive structure on the headstock, the blade disc is arranged in the headstock just to one side of work piece holder, the blade disc is installed and is rotated with the headstock and be connected in the drive structure, briquetting and two blade discs all are located same vertical plane in work piece holder, the fixed branch. The invention has the beneficial effects that: the processing precision and the processing efficiency are improved; the device has the advantages of high precision, high torque, buffering and damping, low noise, maintenance of the stability of the operation of a transmission system and equipment and the like.

Description

End face milling machine

Technical Field

The invention relates to the technical field related to machining, in particular to an end face milling machine.

Background

Milling machines (milling machines) are generally machine tools that use milling cutters to machine various surfaces of a workpiece. Usually, the rotation motion of the milling cutter is used as the main motion, and the movement of the workpiece and the milling cutter is used as the feed motion. The milling machine can mill planes, grooves, gear teeth, threads and spline shafts, can process complex molded surfaces, has higher efficiency than a planer, and is widely applied in mechanical manufacturing and repairing departments.

Chinese patent grant publication no: CN207205367U, granted announcement date 2018, 04.10.A, discloses a novel portable keyway milling machine, which comprises a z-axis stepping motor, a connecting base, a support body, a z-axis track, an input interface, a hand pulse generator, a fixed base plate, a motor, a control panel, a display, a connecting sleeve, a milling cutter, a workbench, a rotary table, a fixed clamp, a y-feeding shaft, a y-axis stepping motor, an x-feeding shaft, an x-axis stepping motor, a power line, a memory, a processor, a grating ruler displacement sensor, a loudspeaker and a distance sensor, wherein the bottom of the z-axis stepping motor is in bolt connection with the connecting base, the bottom surface of the connecting base is welded with the support body and the fixed base, the z-axis track is arranged in the middle of the end surface of the support body, the input interface is arranged in the middle of the left end surface of the support body, and the rear end surface of the hand pulse generator is connected with the support body, the bottom of the fixed base is connected with a fixed base plate through bolts, the rear end face of the motor is fixedly connected with a support body, the left end face of the control panel is connected with the motor, a display is arranged in the end face of the control panel, the top end face of the connecting sleeve is welded with the motor, the top end of the milling cutter is connected with the connecting sleeve, the bottom of the workbench is connected with the rotary table, the bottom end face of the fixing clamp is fixedly connected with the workbench, the rear end face of the y feeding shaft is connected with the rotary table, the y feeding shaft is rotatably connected with the y-axis stepping motor, the rear end face of the x feeding shaft is connected with the workbench, the x-axis stepping motor is rotatably connected with the x feeding shaft, the loudspeaker is arranged at the right part of the top end of the workbench, the distance sensor is arranged at the right part of the top end of the workbench, the rear end face of the power line is connected with the fixed base, the power line is electrically connected with the control panel, the input interface, the storage is electrically connected with the control panel, the hand pulse generator, the distance sensor is connected with the control panel, the distance sensor and the distance sensor, the storage device and the displacement sensor of the display grating ruler are electrically connected with the processor, the processor is electrically connected with the motor, the z-axis stepping motor, the y-axis stepping motor, the x-axis stepping motor and the loudspeaker, and the z-axis stepping motor, the y-axis stepping motor and the x-axis stepping motor are electrically connected with the displacement sensor of the grating ruler. The hand-operated manual operation device has the disadvantages that an operator is required to have higher working experience in the hand-operated operation process, multiple times of clamping and measurement are required when multiple surfaces of a workpiece are machined, the machining time is long, the machining precision and the machining efficiency are lower, and the manufacturing cost is high.

In summary, there is a need for an end face milling machine that can improve the machining accuracy and efficiency.

Disclosure of Invention

The invention provides an end face milling machine capable of improving the machining precision and the machining efficiency, and aims to overcome the defects that in the prior art, an operator needs to have higher working experience in the hand-cranking operation process, multiple times of clamping and measuring are needed when a workpiece is machined in a multi-surface mode, the machining time is long, the machining precision and the machining efficiency are lower, and the manufacturing cost is high.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a face milling machine, includes the host computer body, be equipped with the workstation on the host computer body, be equipped with work piece holder and portal frame on the workstation, be equipped with on the portal frame with work piece holder assorted fixed briquetting in dividing, the top of work piece holder is arranged in to the briquetting in the fixed branch, sliding connection about briquetting and the portal frame in the fixed branch, the left and right sides of workstation all has the headstock, headstock and host computer body horizontal slip connect, be equipped with blade disc and drive structure on the headstock, the blade disc is arranged the headstock in and just to one side of work piece holder, the blade disc is installed and is rotated with the headstock in the drive structure and be connected, work piece holder, fixed briquetting and two blade discs all are located same vertical plane in dividing.

During processing, a workpiece is placed on the workpiece fixture, the workpiece is compressed and fixed and automatically centered through downward movement of the fixed centering pressure block, product precision and production safety are guaranteed, and then cutter discs on the spindle boxes on two sides are driven by the driving structure to rotate at a high speed and approach the workpiece to be milled. The machining device has the advantages that the roundness and the parallelism are guaranteed through one-time clamping, boring and milling, the machining precision is improved, the two sides of a workpiece are milled simultaneously through the cutter discs on the two sides at one time, the machining efficiency is improved, the labor intensity of workers is reduced, the automatic reference-finding and automatic feeding function is realized, and the operation is very simple.

As preferred, drive structure is including installing servo motor, transmission shaft and the blade disc seat on the headstock, transmission shaft and blade disc seat all rotate with the headstock and are connected, be equipped with drive gear one on servo motor's the motor shaft, be equipped with drive gear two on the transmission shaft, drive gear one and the meshing of drive gear two phase, still be equipped with synchronous pulley one on the transmission shaft, be equipped with synchronous pulley two on the blade disc, synchronous pulley one and synchronous pulley two are connected through driving belt, the blade disc is installed on the blade disc seat and rather than can dismantle and be connected. Servo motor drives the transmission shaft through a set of drive gear and synchronous pulley on it is rotatory, makes things convenient for the headstock processing to reduce the error, and synchronous pulley recycles the belt drive and moves the high-speed rotatory work of blade disc on the blade disc seat, has high accuracy and high moment of torsion, buffering shock attenuation, the noise is little, keeps advantages such as stability of transmission system and equipment operation, and the belt can be preferred to be split when the accident takes place to reach the effect of protection blade disc.

Preferably, the portal frame comprises a first upright and a second upright, the first upright is mounted on the workbench and is rotatably connected with the workbench, a beam is fixed on the first upright, the upper end of the second upright is fixedly connected with the beam, an upright clamping seat matched with the lower end of the second upright is arranged on the workbench, an upper oil cylinder is arranged on the beam, and the fixed sub-center pressure block is mounted on the upper oil cylinder. The upper oil cylinder controls the fixed centering pressing block to move up and down, so that the workpiece and the bottom are correspondingly clamped and fixed and centered automatically, and the product precision and the production safety are ensured. When the workpiece is mounted and dismounted, the portal frame is moved to one side through the rotation of the first upright post, so that the workpiece is more convenient to mount and dismount; when the workpiece is machined, the lower end of the second upright post is clamped on the upright post clamping seat, so that the whole portal frame is in a locking state, the stability of workpiece clamping is improved, and the product precision and the production safety are ensured.

Preferably, the workbench is further provided with a side pressure block, the side pressure block is arranged on the side face of the workpiece clamp and is in sliding connection with the workbench, the workbench is provided with a side oil cylinder, and the side pressure block is installed on the side oil cylinder. After the workpiece is fixed by the fixed centering pressing block, the side pressing block is controlled by the side oil cylinder to perform secondary auxiliary pressurization and fixation on the workpiece from the side surface, so that the fixation effect of the workpiece is further improved, and the product precision and the production safety are ensured.

Preferably, the left side and the right side of the main body are both provided with side bodies, the side bodies are provided with slide rails, the bottom of the spindle box is provided with a slide seat matched with the slide rails, the slide seat is installed on the slide rails, and the spindle box is connected with the side bodies in a left-right sliding mode through the matching of the slide seat and the slide rails. The main body and the side body are in a cross box structure, and the structural rigidity is good. A servo speed reducer is arranged on the side machine body, and the X-axis transmission screw rod is driven by a synchronous belt wheel to realize the left-right sliding of the main shaft box (the two sides of the screw rod are provided with anti-collision pads).

As preferred, still be equipped with the chip groove on the host computer body, the below of workstation is arranged in to the chip groove, install the chip removal screw rod in the chip groove, the chip removal screw rod rotates with the chip groove to be connected, the both sides of workstation below are arranged respectively in to the chip removal screw rod, still install the drive chain row in the chip groove, the drive chain row is arranged in between two chip removal screw rods, the tip that just is located the drive chain row on the lateral wall of chip groove is provided with the chip removal mouth, chip removal mouth department installs iron fillings and retrieves the shallow. The main body is provided with a screw motor for controlling the chip removal screw to rotate and a chain row motor for controlling the transmission chain row to transmit. On the scrap iron that produces can fall the chip removal screw rod from the side of workstation milling the in-process, on the rotation through the chip removal screw rod transmits the transmission chain row of iron fillings to its side, rethread transmission chain row automatic conveying is to the iron fillings recovery shallow in, can save artifical cleaning time, and is convenient when iron fillings are retrieved, has played the environmental protection at the during operation, advantages such as safety.

Preferably, the workpiece fixture comprises a placing table installed on a workbench, a workpiece placing groove is formed in the placing table, a first hinged seat is installed on the inner side wall of one side of the workpiece placing groove, a first pressing plate is connected to the first hinged seat in a rotating mode, a first spring is arranged between the first pressing plate and the inner side wall of one side of the workpiece placing groove, two sides of the first hinged seat are arranged in the spring respectively, a second movable block through hole is formed in the inner side wall of the other side of the workpiece placing groove, a movable block is connected to the through hole of the movable block in a sliding mode, one end of the movable block is arranged in the workpiece placing groove, a fixed plate is fixed on the movable block, a second hinged seat is installed on the fixed plate, a second pressing plate is connected to the hinged seat in a rotating mode, a second spring is arranged between the second pressing plate and the inner side wall of the other side of the workpiece placing groove, the first pressing plate and the second pressing plate are arranged on two sides of the workpiece placing groove respectively, a handheld portion is fixed to the other end of the movable block, a third spring is arranged between the inner side wall of the fixed plate and the other side of the workpiece placing groove, and the movable block is sleeved on the movable block. When a workpiece is placed, an operator firstly holds the hand-held part to pull the fixed plate and the pressing plate on the fixed plate outwards, then places the workpiece between the first pressing plate and the second pressing plate, and finally releases the hand, the second pressing plate on the fixed plate can press the workpiece on the first pressing plate under the action of the reset elastic force of the spring III, and the workpiece is clamped and limited through the matching of the first pressing plate and the second pressing plate. Through the rotating design of the first pressing plate and the second pressing plate, when the workpieces are clamped, the first pressing plate and the second pressing plate can be adjusted in a self-adaptive mode according to the shapes of the workpieces, so that the contact area between the workpieces and the clamping effect is improved, and the workpieces in different shapes can be clamped and limited well.

Preferably, a workpiece pressure groove is formed in the bottom surface of the fixed centering pressing block, a plurality of positioning rods are arranged on the side wall of the workpiece pressure groove, the positioning rods are linearly distributed along the groove line direction of the workpiece pressure groove, an oil cavity matched with the positioning rods is arranged inside the fixed centering pressing block, the oil cavity is arranged on the side face of the workpiece pressure groove, a piston is arranged inside the oil cavity, a positioning rod through hole is formed in the side wall, close to one side of the workpiece pressure groove, of the oil cavity, the positioning rods penetrate through the positioning rod through holes and are fixedly connected with the piston, a first oil inlet is formed in the side wall, far away from one side of the workpiece pressure groove, of the oil cavity, and a first sheet separator matched with the positioning rods is arranged inside the fixed centering pressing block. Wherein the workpiece pressure groove is matched with the workpiece placing groove. The fixed middle-dividing pressure block presses a placed workpiece (the top of the workpiece is located in a workpiece pressure groove) under the control of the upper oil cylinder, an external oil pressure system simultaneously leads pressure oil to all oil cavities through an oil inlet I, a piston and a positioning rod on the piston are pushed to move, the positioning rod is enabled to be propped against the side face of the workpiece, further fixing effect is achieved on the workpiece, and meanwhile, a middle-dividing single chip microcomputer judges the zero point of the workpiece according to the feeding amount of each positioning rod, so that the purpose of automatic middle division is achieved.

Preferably, the bottom of the upper oil cylinder is provided with an upper oil cylinder piston rod, the end part of the upper oil cylinder piston rod is provided with an adjusting motor, the bottom of the adjusting motor is provided with a motor shaft, the top surface of the fixed middle pressing block is fixed at the end part of the motor shaft, the single chip microcomputer in the middle pressing block is electrically connected with the adjusting motor, and the placing table is rotatably connected with the workbench. The dividing singlechip controls and adjusts the motor to work according to the zero point of the workpiece, so that the fixed dividing pressure block and the workpiece are driven to perform self-adaptive position adjustment rotation to align the cutter heads on two sides, the equipment has high automation degree and good working continuity, the labor intensity of workers is reduced, and the working efficiency and the working precision are improved.

Preferably, the bottom of the placing table is provided with a rotating column, a workbench cavity is arranged in the workbench, a fixing block is fixed in the workbench cavity, a rotating column locking groove is formed in the fixing block, a rotating column through hole matched with the rotating column is formed in the top surface of the workbench cavity, the rotating column penetrates through the rotating column through hole and is installed in the rotating column locking groove, the rotating column through hole and the rotating column locking groove are rotationally connected, a plurality of locking rod through holes are annularly distributed in the side wall of the rotating column locking groove, locking rods are slidably connected in the locking rod through holes, the length of each locking rod is larger than that of the locking rod through hole, a compression ring is sleeved on the outer side of the fixing block, the compression ring and the fixing block are slidably connected, the inner diameter of the compression ring is gradually increased from the bottom surface of the compression ring to the top surface of the compression ring, and a second oil inlet is installed in the bottom surface of the workbench cavity. After the position of work piece is adjusted, outside oil pressure system passes through the oil inlet and to input pressure oil in the workstation cavity, promote clamp ring upward movement, when the inner wall of clamp ring passes through the position of locking lever, all locking levers move and press on rotating the post from the central point that all around simultaneously toward rotating the post locked groove under the guide effect of clamp ring inner wall to the locking effect to the post that rotates is realized, the phenomenon that the work piece appears deflecting in the avoidance of machining process, guarantee product precision and production security.

The invention has the beneficial effects that: the processing precision and the processing efficiency are improved; the device has the advantages of high precision, high torque, buffering and damping, low noise, maintenance of the stability of a transmission system and equipment in operation and the like; the blade has good protection effect; the stability of workpiece clamping is improved, and the product precision and production safety are ensured; the fixing effect of the workpiece is improved; the scrap iron is convenient to recycle, the manual cleaning time is saved, and the advantages of environmental protection, safety and the like are achieved during working; the contact area with the workpiece is increased, the clamping effect is improved, and the workpiece with different shapes can be well clamped and limited; the automation degree is high, the working continuity is good, and the automatic centering function is realized; the deflection phenomenon of the workpiece in the machining process can be prevented, and the product precision and the production safety are ensured.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a top view of the present invention;

FIGS. 4, 5 and 6 are views of the present invention in a processing state;

FIG. 7 is a schematic view of one configuration of a drive train row;

FIG. 8 is a schematic view of a spindle head configuration;

FIG. 9 is a schematic view of one construction of the cutter head;

FIG. 10 is a schematic view of a slide rail;

FIG. 11 is a structural connection diagram of the table and the work holder;

FIG. 12 is a top view of the work holder;

FIG. 13 is a front view of the stationary centering block;

fig. 14 is a bottom view of the fixed centering block.

In the figure: 1. the machine comprises a main spindle box, 2 parts of a sliding seat, 3 parts of a side machine body, 4 parts of chip removal screws, 5 parts of chip removal grooves, 6 parts of a main machine body, 7 parts of a workbench, 8 parts of a workpiece clamp, 9 parts of a fixed centering pressing block, 10 parts of an upper oil cylinder, 11 parts of a portal frame, 12 parts of a cutter head, 13 parts of a cutter head seat, 14 parts of a side pressing block, 15 parts of an upright post II, 16 parts of an upright post clamping seat, 17 parts of a chip removal port, 18 parts of an iron chip recovery trolley, 19 parts of an upright post I, 20 parts of a side oil cylinder, 21 parts of a cross beam, 22 parts of a transmission chain row, 23 parts of a placing table, 24 parts of a workpiece placing groove, 25 parts of a rotating post, 26 parts of a rotating post through hole, 27 parts of a workbench cavity, 28 parts of a pressing ring, 29 parts of a fixing block and 30 parts of an oil inlet II, 31, a lock rod through hole, 32, a lock rod, 33, a rotating column lock groove, 34, a movable block through hole, 35, a movable block, 36, a spring III, 37, a handheld part, 38, a hinged seat II, 39, a fixed plate, 40, a pressure plate II, 41, a spring II, 42, a spring I, 43, a pressure plate I, 44, a hinged seat I, 45, an adjusting motor, 46, an oil cavity, 47, an oil inlet I, 48, a piston, 49, a positioning rod through hole, 50, a positioning rod, 51, a workpiece pressure groove, 52, a telescopic protective cover, 53, a control panel, 54, a servo motor, 55, a measuring rod, 56, a blade, 57, a cutter handle, 58, a sliding rail and 59.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1, fig. 2, and fig. 3, an end face milling machine includes a main machine body 6, a workbench 7 is provided on the main machine body 6, a workpiece fixture 8 and a portal frame 11 are provided on the workbench 7, a fixed sub-center pressure block 9 matched with the workpiece fixture 8 is provided on the portal frame 11, the fixed sub-center pressure block 9 is disposed above the workpiece fixture 8, the fixed sub-center pressure block 9 and the portal frame 11 are connected in a vertically sliding manner, a main spindle box 1 is provided on each of the left and right sides of the workbench 7, the main spindle box 1 and the main machine body 6 are connected in a horizontally sliding manner, a cutter head 12 and a driving structure are provided on the main spindle box 1, the cutter head 12 is disposed on one side of the main spindle box 1 facing the workpiece fixture 8, the cutter head 12 is mounted on the driving structure and rotatably connected with the main spindle box 1, and the workpiece fixture 8, the fixed sub-center pressure block 9, and the two cutter heads 12 are all located in the same vertical plane. As shown in fig. 8, the headstock 1 may be provided with a measuring stick 55. As shown in fig. 9, the cutter head 12 is composed of a blade 56 (detachable) and a cutter handle 57 (NT 50).

The driving structure comprises a servo motor 54 installed on the spindle box 1, a transmission shaft and a cutter head seat 13, the transmission shaft and the cutter head seat 13 are rotatably connected with the spindle box 1, a first transmission gear is arranged on a motor shaft of the servo motor 54, a second transmission gear is arranged on the transmission shaft, the first transmission gear is meshed with the second transmission gear, a first synchronous belt pulley is further arranged on the transmission shaft, a second synchronous belt pulley is arranged on the cutter head 12, the first synchronous belt pulley and the second synchronous belt pulley are connected through a transmission belt, and the cutter head 12 is installed on the cutter head seat 13 and detachably connected with the cutter head seat.

The portal frame 11 comprises a first upright post 19 and a second upright post 15, the first upright post 19 is installed on the workbench 7 and is rotatably connected with the workbench, a cross beam 21 is fixed on the first upright post 19, the upper end of the second upright post 15 is fixedly connected with the cross beam 21, an upright post clamping seat 16 matched with the lower end of the second upright post 15 is arranged on the workbench 7, an upper oil cylinder 10 is arranged on the cross beam 21, and a fixed centering pressing block 9 is installed on the upper oil cylinder 10.

The workbench 7 is further provided with a side pressing block 14, the side pressing block 14 is arranged on the side face of the workpiece clamp 8, the side pressing block 14 is connected with the workbench 7 in a sliding mode, the workbench 7 is provided with a side oil cylinder 20, and the side pressing block 14 is installed on the side oil cylinder 20.

The left and right sides of main fuselage 6 all is equipped with side fuselage 3, is equipped with slide rail 58 on the side fuselage 3, and the bottom of headstock 1 is equipped with the sliding seat 2 with slide rail 58 assorted, and sliding seat 2 installs on slide rail 58, and headstock 1 is through the cooperation of sliding seat 2 and slide rail 58 and side fuselage 3 horizontal sliding connection. A telescopic protective cover 52 is arranged on one side of the sliding seat 2 close to the workbench 7. One of the side machine bodies 3 is provided with a control panel, so that the intelligent operation is simple and easy to understand. Oil conveying grooves are formed in the contact surfaces of the sliding rails 58 and the sliding seat 2, and 68 # wear-resistant guide rail oil can be communicated in the oil conveying grooves.

As shown in fig. 3 and 7, a chip removal groove 5 is further formed in the main body 6, the chip removal groove 5 is arranged below the workbench 7, chip removal screws 4 are mounted in the chip removal groove 5, the chip removal screws 4 are rotatably connected with the chip removal groove 5, the chip removal screws 4 are respectively arranged on two sides below the workbench 7, a transmission chain row 22 is further mounted in the chip removal groove 5, the transmission chain row 22 is arranged between the two chip removal screws 4, a chip removal port 17 is formed in the end portion, located on the side wall of the chip removal groove 5, of the transmission chain row 22, and an iron chip recovery cart 18 is mounted at the chip removal port 17.

As shown in fig. 11 and 12, the workpiece fixture 8 includes a placing table 23 installed on the workbench 7, a workpiece placing groove 24 is provided on the placing table 23, a first hinge seat 44 is installed on an inner side wall of one side of the workpiece placing groove 24, a first pressing plate 43 is rotatably connected to the first hinge seat 44, a first spring 42 is further provided between the first pressing plate 43 and the inner side wall of one side of the workpiece placing groove 24, the first spring 42 is respectively disposed on two sides of the first hinge seat 44, a second movable block through hole 34 is provided on the inner side wall of the other side of the workpiece placing groove 24, a movable block 35 is slidably connected to the first movable block through hole 34, one end of the movable block 35 is disposed inside the workpiece placing groove 24 and is fixed with a fixed plate 39 thereon, a second hinge seat 38 is installed on the fixed plate 39, a second pressing plate 40 is rotatably connected to the second hinge seat 38, a second spring 41 is further provided between the second pressing plate 40 and the inner side wall of the other side of the workpiece placing groove 24, the first pressing plate 43 and the second pressing plate 40 are respectively disposed on two sides of the workpiece placing groove 24 and are disposed opposite to each other side, a spring 36 is disposed on the other side of the workpiece placing groove 24, and is disposed on the other side of the movable block 35.

As shown in fig. 13 and 14, a workpiece pressure groove 51 is formed in the bottom surface of the fixed centering pressing block 9, a plurality of positioning rods 50 are arranged on the side walls of the workpiece pressure groove 51, the positioning rods 50 are linearly distributed along the groove line direction of the workpiece pressure groove 51, an oil cavity 46 matched with the positioning rods 50 is formed in the fixed centering pressing block 9, the oil cavity 46 is arranged on the side surface of the workpiece pressure groove 51, a piston 48 is arranged in the oil cavity 46, a positioning rod through hole 49 is formed in the side wall, close to the workpiece pressure groove 51, of the oil cavity 46, the positioning rod 50 penetrates through the positioning rod through hole 49 and is fixedly connected with the piston 48, a first oil inlet 47 is formed in the side wall, far away from the workpiece pressure groove 51, of the oil cavity 46, and a single wafer separator matched with the positioning rod 50 is arranged in the fixed centering pressing block 9.

An upper oil cylinder piston rod is arranged at the bottom of the upper oil cylinder 10, an adjusting motor 45 is arranged at the end part of the upper oil cylinder piston rod, a motor shaft is arranged at the bottom of the adjusting motor 45, the top surface of the middle dividing pressing block 9 is fixed at the end part of the motor shaft, the middle dividing single chip microcomputer is electrically connected with the adjusting motor 45, and the placing table 23 is rotatably connected with the workbench 7.

As shown in fig. 11 and 12, a rotary column 25 is arranged at the bottom of the placing table 23, a table cavity 27 is arranged inside the table 7, a fixing block 29 is fixed inside the table cavity 27, a rotary column locking groove 33 is arranged on the fixing block 29, a rotary column through hole 26 matched with the rotary column 25 is arranged on the top surface of the table cavity 27, the rotary column 25 passes through the rotary column through hole 26 and is installed in the rotary column locking groove 33, the rotary column 25, the rotary column through hole 26 and the rotary column locking groove 33 are rotatably connected, a plurality of lock rod through holes 31 are annularly distributed on the side wall of the rotary column locking groove 33, a lock rod 32 is slidably connected in the lock rod through hole 31, the length of the lock rod 32 is greater than that of the lock rod through hole 31, a compression ring 28 is sleeved outside the fixing block 29, the compression ring 28 and the fixing block 29 are slidably connected, the compression ring 28 is arranged below the compression ring 32, the inner diameter of the compression ring 28 is gradually increased from the bottom surface of the compression ring 28 to the top surface of the compression ring 28, and a second oil inlet 30 is arranged on the bottom surface of the table cavity 27.

The working principle is as follows:

when a workpiece is placed, an operator firstly holds the hand-held part 37 to pull the fixing plate 39 and the second pressing plate 40 on the fixing plate outwards, then places the workpiece between the first pressing plate 43 and the second pressing plate 40, and finally releases the hand, so that the second pressing plate 40 on the fixing plate 39 can press the workpiece on the first pressing plate 43 under the action of the reset elastic force of the spring III 36, and the workpiece is clamped and limited through the matching of the first pressing plate 43 and the second pressing plate 40. Through the rotational design of the first pressing plate 43 and the second pressing plate 40, when the first pressing plate 43 and the second pressing plate 40 clamp the workpiece, the shape of the workpiece can be adjusted in a self-adaptive mode, so that the contact area of the workpiece and the workpiece is increased, the clamping effect is improved, and the workpiece in different shapes can be clamped and limited well.

The fixed centering press block 9 presses the placed workpiece (the top of the workpiece is located in a workpiece pressure groove 51) under the control of the upper oil cylinder 10, an external oil pressure system simultaneously introduces pressure oil into all oil cavities 46 through the first oil inlet 47 to push the piston 48 and the positioning rod 50 thereon to move, so that the positioning rod 50 is pressed against the side surface of the workpiece, and meanwhile, the centering single chip microcomputer judges the zero point of the workpiece according to the feeding amount of each positioning rod 50, so that automatic centering is realized.

The dividing singlechip controls the adjustment motor 45 to work according to the zero point of the workpiece, so that the fixed dividing middle pressure block 9 and the workpiece are driven to make self-adaptive position adjustment rotation to align to the cutterheads 12 on two sides.

When the position of the workpiece is adjusted, an external oil pressure system inputs pressure oil into the workbench cavity 27 through the oil inlet II 30 to push the compression ring 28 to move upwards, and when the inner wall of the compression ring 28 passes through the position of the lock rod 32, all the lock rods 32 move from the periphery to the central position of the lock groove 33 of the rotating column simultaneously under the guiding action of the inner wall of the compression ring 28 and press the rotating column 25, so that the rotating column 25 is locked.

And then the side pressing block 14 is controlled by the side oil cylinder 20 to perform secondary auxiliary pressurization and fixing on the workpiece from the side.

As shown in fig. 4, 5 and 6, during machining, the servo motor drives the transmission shaft and the synchronous pulley thereon to rotate through a group of transmission gears, the synchronous pulley drives the cutter 12 on the cutter base 13 to rotate at a high speed by using a belt to drive the cutter, and the servo reducer drives the X-axis transmission screw rod through the synchronous pulley to enable the spindle box 1 to approach the workpiece, so that both sides of the workpiece are milled simultaneously.

Scrap iron generated in the milling process falls onto the chip removal screw 4 from the side surface of the workbench 7, is transmitted to the transmission chain row 22 on the side surface of the scrap iron through the rotation of the chip removal screw 4, and is automatically transmitted into the scrap iron recycling cart 18 through the transmission chain row 22.

The invention is suitable for the primary forming and high-strength cutting of the steel blank.

Claims

1. The utility model provides an end face milling machine, characterized by, includes main frame (6), be equipped with workstation (7) on main frame (6), be equipped with work piece holder (8) and portal frame (11) on workstation (7), be equipped with on portal frame (11) with work piece holder (8) assorted fixed dividing medium pressure block (9), the top of work piece holder (8) is arranged in briquetting (9) in the fixed dividing, sliding connection about briquetting (9) and portal frame (11) in the fixed dividing, headstock (1) all has in the left and right sides of workstation (7), headstock (1) and main frame (6) horizontal sliding connection, be equipped with blade disc (12) and drive structure on headstock (1), blade disc (12) are arranged in headstock (1) just to one side of work piece holder (8), blade disc (12) are installed and are rotated with headstock (1) and are connected in the drive structure, in work piece holder (8), fixed dividing briquetting (9) and two blade discs (12) all are located same vertical plane.

2. An end face milling machine according to claim 1, characterized in that, the drive structure includes servo motor (54), transmission shaft and cutter head seat (13) installed on headstock (1), transmission shaft and cutter head seat (13) all rotate with headstock (1) and are connected, be equipped with drive gear one on the motor shaft of servo motor (54), be equipped with drive gear two on the transmission shaft, drive gear one and drive gear two-phase meshing, still be equipped with synchronous pulley one on the transmission shaft, be equipped with synchronous pulley two on cutter head (12), synchronous pulley one and synchronous pulley two are connected through driving belt, cutter head (12) are installed on cutter head seat (13) and can dismantle with it and be connected.

3. An end face milling machine according to claim 1, characterized in that the portal frame (11) comprises a first upright post (19) and a second upright post (15), the first upright post (19) is installed on the workbench (7) and is rotatably connected with the workbench, a cross beam (21) is fixed on the first upright post (19), the upper end of the second upright post (15) is fixedly connected with the cross beam (21), an upright post clamping seat (16) matched with the lower end of the second upright post (15) is arranged on the workbench (7), an upper oil cylinder (10) is arranged on the cross beam (21), and the fixed centering pressing block (9) is installed on the upper oil cylinder (10).

4. An end face milling machine according to claim 1, characterized in that the workbench (7) is further provided with a side pressing block (14), the side pressing block (14) is arranged on the side face of the workpiece clamp (8), the side pressing block (14) is connected with the workbench (7) in a sliding manner, the workbench (7) is provided with a side oil cylinder (20), and the side pressing block (14) is arranged on the side oil cylinder (20).

5. An end face milling machine according to claim 1, characterized in that the main body (6) is provided with side bodies (3) on the left and right sides, the side bodies (3) are provided with slide rails (58), the bottom of the main spindle box (1) is provided with sliding seats (2) matched with the slide rails (58), the sliding seats (2) are mounted on the slide rails (58), and the main spindle box (1) is connected with the side bodies (3) in a left-right sliding mode through the matching of the sliding seats (2) and the slide rails (58).

6. An end face milling machine according to claim 1, characterized by, still be equipped with chip groove (5) on host computer body (6), the below of workstation (7) is arranged in chip groove (5), install chip removal screw rod (4) in chip groove (5), chip removal screw rod (4) and chip groove (5) rotate to be connected, the both sides of workstation (7) below are arranged respectively in chip groove (4), still install drive chain row (22) in chip groove (5), drive chain row (22) are arranged in between two chip removal screw rods (4), the tip that just is located drive chain row (22) on the lateral wall of chip groove (5) is provided with chip removal mouth (17), chip removal mouth (17) department installs iron fillings and retrieves shallow (18).

7. The end face milling machine according to any one of claims 1 to 6, wherein the workpiece fixture (8) comprises a placing table (23) mounted on the workbench (7), a workpiece placing groove (24) is formed in the placing table (23), a first hinge seat (44) is mounted on the inner side wall of one side of the workpiece placing groove (24), a first pressing plate (43) is rotatably connected to the first hinge seat (44), a first spring (42) is further arranged between the first pressing plate (43) and the inner side wall of one side of the workpiece placing groove (24), the first spring (42) is respectively arranged on two sides of the first hinge seat (44), a movable block through hole (34) is formed in the inner side wall of the other side of the workpiece placing groove (24), a movable block (35) is slidably connected to the movable block through hole (34), one end of the movable block (35) is arranged inside the workpiece placing groove (24) and is fixedly provided with a fixed plate (39), a second hinge seat (38) is mounted on the fixed plate (39), a second pressing plate (40) is rotatably connected to the second hinge seat (38), a second pressing plate (40) and a workpiece placing groove (24) and a pressing plate (41) and a workpiece are further arranged on the other side of the inner side of the workpiece placing groove, and the two pressing plate (40) are respectively arranged on the other side of the two pressing plate (24), the other end of the movable block (35) is arranged outside the workpiece placing groove (24) and is fixedly provided with a handheld portion (37), a third spring (36) is arranged between the fixed plate (39) and the inner side wall of the other side of the workpiece placing groove (24), and the third spring (36) is sleeved on the movable block (35).

8. The end face milling machine as claimed in claim 7, wherein a workpiece pressing groove (51) is formed in the bottom face of the fixed centering pressing block (9), a plurality of positioning rods (50) are arranged on the side wall of the workpiece pressing groove (51), the positioning rods (50) are linearly distributed along the groove line direction of the workpiece pressing groove (51), an oil cavity (46) matched with the positioning rods (50) is formed in the fixed centering pressing block (9), the oil cavity (46) is arranged on the side face of the workpiece pressing groove (51), a piston (48) is arranged in the oil cavity (46), a positioning rod through hole (49) is formed in the side wall, close to the workpiece pressing groove (51), of the oil cavity (46), the positioning rod (50) penetrates through the positioning rod through hole (49) and is fixedly connected with the piston (48), a piston (47) is arranged on an oil inlet of the side wall, far away from the workpiece pressing groove (51), of the fixed centering pressing block (9), and a centering machine matched with the positioning rods (50) is arranged in the fixed centering pressing block.

9. An end face milling machine according to claim 8, characterized in that the upper cylinder (10) is provided at its bottom with an upper cylinder piston rod, the end of the upper cylinder piston rod is provided with an adjusting motor (45), the bottom of the adjusting motor (45) is provided with a motor shaft, the top surface of the fixed centering press block (9) is fixed at the end of the motor shaft, the centering press block is electrically connected with the adjusting motor (45), and the placing table (23) is rotatably connected with the table (7).

10. A face milling machine according to claim 9, characterized in that the bottom of the placing table (23) is provided with a rotating column (25), a workbench cavity (27) is arranged inside the workbench (7), a fixed block (29) is fixed inside the workbench cavity (27), a rotating column locking groove (33) is arranged on the fixed block (29), a rotating column through hole (26) matched with the rotating column (25) is arranged on the top surface of the workbench cavity (27), the rotating column (25) passes through the rotating column through hole (26) and is arranged in the rotating column locking groove (33), the rotating column (25) is rotationally connected with the rotating column through hole (26) and the rotating column locking groove (33), a plurality of locking rod through holes (31) are annularly distributed on the side wall of the rotating column locking groove (33), a lock rod (32) is connected in the lock rod through hole (31) in a sliding way, the length of the lock rod (32) is longer than that of the lock rod through hole (31), a compression ring (28) is sleeved outside the fixed block (29), the compression ring (28) is connected with the fixed block (29) in a sliding manner, the compression ring (28) is arranged below the lock rod (32), the inner diameter of the compression ring (28) is gradually increased from the bottom surface of the compression ring (28) to the top surface of the compression ring (28), and a second oil inlet (30) is arranged on the bottom surface of the workbench cavity (27).