CN114101728B

CN114101728B - Numerical control machine tool with automatic feeding device

Info

Publication number: CN114101728B
Application number: CN202111472565.6A
Authority: CN
Inventors: 章毅; 周金铭
Original assignee: Wuxi Yunji Machinery Co ltd
Current assignee: Wuxi Yunji Machinery Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-08-19
Anticipated expiration: 2041-12-06
Also published as: CN114101728A

Abstract

The invention relates to the technical field of numerical control machine tools, which comprises a machine body, wherein the machine body is provided with a feeding mechanism for loading a workpiece, a pushing mechanism for loading the workpiece into a clamp, a collecting mechanism for collecting the workpiece and a control terminal for implementing control; the feeding mechanism comprises a feeding box and a feeding cylinder which are arranged in the lathe bed, the bottom of the feeding box is provided with a first opening, the lathe bed is provided with a material passing hole communicated with the first opening, the material passing hole is positioned on one side of the feeding box, which is far away from the feeding cylinder, and the material passing hole and a piston rod of the feeding cylinder are coaxially arranged; the pushing mechanism comprises a lifting cylinder, a bearing plate, a transfer block and a material pushing cylinder, the transfer block is internally connected with a workpiece placing sleeve, a sliding hole used for containing the workpiece is formed in the workpiece placing sleeve, the lifting cylinder is used for pushing the transfer block to move in the vertical direction, and the sliding hole is aligned to a material passing hole or a center mounting groove. The invention has the effects of convenient feeding and improving the processing efficiency.

Description

Numerical control machine tool with automatic feeding device

Technical Field

The invention relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool with an automatic feeding device.

Background

The numerical control machine tool is an automatic machine tool provided with a program control system, when a workpiece is processed, the program control system in the numerical control machine tool sends out various control signals to control the action of the machine tool, so that a processing part in the machine tool can automatically finish processing parts according to the shape and size required by a drawing.

The chinese patent that publication number is CN206464911U discloses a digit control machine tool, it includes the lathe bed, be provided with the operation mouth on the lathe bed, be provided with the cutter that is used for pressing from both sides the anchor clamps of getting the instrument and is used for processing in the lathe bed, the lathe bed corresponds operation mouth department and slides and be connected with a body, be provided with the recess on the door body, the recess internal rotation is connected with handheld cover, wear to be equipped with on the door body and hand cover threaded connection's member, the door body is worn out to the one end of member, set up on the lathe bed with the joint cooperation and keep a body to be in the card hole of closing.

In the process of implementing the present application, the inventors found that at least the following problems exist in the technology: this lathe is in the course of working, in order to reduce the piece that processing produced to spatter, protect the staff simultaneously, needs the door body to keep closed state, consequently, when carrying out the material loading operation on anchor clamps, need switch the door body repeatedly, carries out the change of work piece by the staff manual work again, and efficiency is lower.

Disclosure of Invention

In order to facilitate loading and improve the machining efficiency, the application provides a numerical control machine tool with an automatic loading device.

The application provides a digit control machine tool with automatic feeding device adopts following technical scheme:

a numerical control machine tool with an automatic feeding device comprises a machine body, wherein a clamp for clamping a workpiece and a cutter for machining the workpiece are arranged on the machine body, a door body corresponding to an operation port is arranged on the machine body in a sliding manner, a central mounting groove for clamping the workpiece is formed in the central position of the clamp, a feeding mechanism for loading the workpiece, a material pushing mechanism for loading the workpiece into the clamp, a collecting mechanism for collecting the workpiece and a control terminal for implementing control are arranged on the machine body, and the control terminal is respectively connected with the feeding mechanism and the material pushing mechanism in a signal manner;

the feeding mechanism comprises a feeding box and a feeding cylinder which are arranged in a lathe bed, workpieces which are horizontally arranged are vertically stacked in the feeding box, a piston rod of the feeding cylinder is parallel to the central mounting groove, a first opening for the workpieces and the piston rod of the feeding cylinder to pass through is formed in the bottom of the feeding box, a material passing hole communicated with the first opening is formed in the lathe bed, the material passing hole is located on one side, far away from the feeding cylinder, of the feeding box, and the material passing hole and the piston rod of the feeding cylinder are coaxially arranged;

the pushing mechanism comprises a lifting cylinder, a bearing plate, a transfer block and a material pushing cylinder, the lifting cylinder is connected to the lathe bed, a piston rod of the lifting cylinder is vertically arranged downwards and connected with the bearing plate, the transfer block and the material pushing cylinder are respectively connected to the bearing plate, a workpiece placing sleeve is connected in the transfer block, a sliding hole used for containing a workpiece is formed in the workpiece placing sleeve and is a through hole, the sliding hole is parallel to the material passing hole, the material pushing cylinder is located on one side, deviating from the clamp, of the transfer block, the piston rod of the material pushing cylinder and the sliding hole are coaxially arranged, a material pushing rod is coaxially connected to the piston rod of the material pushing cylinder, and the lifting cylinder is used for pushing the transfer block to move in the vertical direction, so that the sliding hole is aligned to the material passing hole or the center mounting groove.

By adopting the technical scheme, when a workpiece needs to be machined, a worker stacks the workpiece in the feeding box and starts the control terminal, then the feeding cylinder pushes the workpiece in the feeding box one by one under the control of the control terminal, the pushed workpiece enters the sliding hole in the workpiece placing sleeve after passing through the material passing hole, then the lifting cylinder descends to enable the sliding hole to be opposite to the central mounting groove, the workpiece in the sliding hole is pushed into the central mounting groove by the material pushing cylinder, then the clamp clamps the workpiece, the piston rod of the lifting cylinder is retracted and is machined by a cutter in a machine tool, and after machining is completed, the control terminal controls the feeding mechanism and the material pushing mechanism to repeat the steps, so that automatic feeding of the workpiece is realized, the working efficiency is improved, and the labor is saved.

Optionally, the upper surface of the feeding box is vertically provided with a plurality of mounting grooves communicated with the first opening, each mounting groove is detachably connected with a feeding box for stacking workpieces, two vertical side walls of the feeding box, which are perpendicular to the piston rod of the feeding cylinder, are provided with second openings, and when the feeding box is mounted in the mounting groove, the second openings are opposite to the first openings; the feeding device is characterized in that a servo cylinder used for pushing the feeding box to slide along the direction perpendicular to the piston rod of the feeding cylinder is arranged in the lathe body, and the servo cylinder is in signal connection with the control terminal and used for switching the feeding box right facing the feeding hole.

By adopting the technical scheme, after the workpieces in a certain feeding box are all pushed out, the control terminal controls the servo cylinder to operate, so that the feeding box is switched without stopping to supplement the workpieces, and the processing efficiency is improved.

Optionally, the feeding boxes are of multiple types, the feeding boxes of different types are used for loading different types of workpieces, the feeding mechanism further comprises a verification assembly in signal connection with the control terminal, the verification assembly comprises a code scanner and a verification plate arranged corresponding to the feeding boxes, the code scanner is connected to the lathe bed, the verification plate is connected to the corresponding feeding box, and a bar code or a two-dimensional code which can be identified by the code scanner and records type information of the workpieces in the corresponding feeding boxes is printed on the verification plate; and the control terminal is used for setting the processing parameters of the numerical control machine tool based on the identification result of the code scanner.

Through adopting above-mentioned technical scheme, verify the subassembly through setting up for the work piece type of the work piece that loads in the last magazine that the code scanning ware can discern current use, thereby according to the automatic machining parameter who sets up the digit control machine tool of work piece type, improved machining efficiency.

Optionally, the control terminal includes a signal receiving module, a data processing module, a storage module, an equipment control module, and a numerical control parameter setting module;

the equipment control module is used for sending a code scanning instruction to the code scanner so as to enable the code scanner to execute a code scanning action and obtain a current workpiece type corresponding to a workpiece in a feeding box of the feeding cylinder, the signal receiving module is used for receiving the current workpiece type and transmitting the current workpiece type to the data processing module, the data processing module is used for calling a current tool machining parameter corresponding to the current workpiece type based on the current workpiece type and a corresponding relation between the workpiece type and the tool machining parameter pre-stored in the storage module, and the numerical control parameter setting module is used for inputting the current tool machining parameter into a numerical control system preset in the numerical control machine; the equipment control module is also used for controlling the operation of the feeding mechanism and the pushing mechanism based on the identified type of the current workpiece.

Optionally, a weighing sensor for detecting the real-time weight of the feeding box is embedded at the bottom of each mounting groove, the weighing sensor is in signal connection with a control terminal, the weighing sensor is used for sending a replacement notification signal to the control terminal when detecting that the mass of the corresponding feeding box is reduced to a preset empty box threshold, the control terminal is used for sending a real-time weighing instruction to all the weighing sensors through the equipment control module after the signal receiving module receives the replacement notification signal, so that each weighing sensor obtains one-time real-time weighing data and feeds back the obtained real-time weighing data to the control terminal, and the data processing module is used for confirming a next target feeding box containing the largest number of workpieces to be used based on each real-time weighing data received by the signal receiving module; the equipment control module is further used for controlling the telescopic rod of the servo cylinder to move based on the confirmed target feeding box, so that the second opening of the target feeding box is opposite to the piston rod of the feeding cylinder.

By adopting the technical scheme, the control terminal can select the feeding box loaded with the workpieces as the target feeding box according to the weighing result of the weighing sensor, so that the possibility that the feeding box not loaded with the workpieces is still changed when the feeding box is switched is reduced.

Optionally, an audible and visual alarm in signal connection with the control terminal is arranged on the bed body, and the equipment control module is further configured to control the audible and visual alarm to give an alarm after the signal receiving module receives the replacement notification signal.

By adopting the technical scheme, when the workpieces in the feeding box in use are used up, the control terminal can control the audible and visual alarm to give an alarm, so that the workers are reminded to supplement the workpieces in time.

Optionally, the transfer block is cylindrical and the axis direction is on a parallel with the punishment in advance hole, the work piece is placed the sleeve and is provided with a plurality ofly, a plurality ofly in the transfer block the work piece is placed the sleeve and is followed the circumference evenly distributed that shifts the block, be provided with signal connection in control terminal's servo motor on the loading board, data processing module still is used for receiving current work piece kind at signal reception module after, based on the corresponding relation of work piece kind and servo motor gear that has prestored in current work piece kind and the storage module, generates the rotational position control instruction to servo motor, equipment control module still is used for based on the rotational position control instruction adjusts servo motor's turned angle, makes just for the work piece that pushes away the material cylinder places the sleeve and places the sleeve for the work piece that current work piece kind corresponds.

Through adopting above-mentioned technical scheme, control terminal can be according to the current work piece kind that discerns, and automatic control servo motor moves to the sleeve is placed to the work piece that switches required use, and need not to be adjusted by the staff again, has improved machining efficiency.

Optionally, the workpiece placement sleeve is detachably connected to the transfer block.

By adopting the technical scheme, the maintenance and the replacement of the workpiece placing sleeve by workers are facilitated.

Optionally, the collecting mechanism comprises a collecting box placed below the fixture, the upper surface of the collecting box is in an open shape, a reset pressure spring is arranged in the central mounting groove, one end of the reset pressure spring is connected to the bottom wall of the central mounting groove, and the other end of the reset pressure spring is connected with a reset plate.

Through adopting above-mentioned technical scheme, when the work piece was packed into central mounting groove and was held by anchor clamps, the pressure spring that resets was in compression state, and after anchor clamps unclamped the centre gripping to the work piece, the board that resets was released the work piece under the effect of pressure spring elasticity that resets for the work piece falls into in the collecting box of below, thereby has realized the collection to the processing completion work piece.

Optionally, a magnet block is embedded in the inner side wall of the sliding hole.

Through adopting above-mentioned technical mode, when the work piece was located the sliding hole, the magnet piece adsorbs the work piece, has reduced the work piece and has not produced the possibility of rocking when being promoted.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a workpiece needs to be machined, a worker stacks the workpiece in a feeding box, a control terminal is started, then the feeding cylinder pushes the workpiece in the feeding box one by one under the control of the control terminal, the pushed workpiece enters a sliding hole in a workpiece placing sleeve after passing through a material passing hole, then a lifting cylinder descends to enable the sliding hole to be opposite to a central mounting groove, the workpiece in the sliding hole is pushed into the central mounting groove by a material pushing cylinder, then a clamp clamps the workpiece, a piston rod of the lifting cylinder is retracted, the workpiece is machined by a cutter in a machine tool, and after machining is finished, the control terminal controls a feeding mechanism and a material pushing mechanism to repeat the steps, so that automatic feeding of the workpiece is achieved, the working efficiency is improved, and manpower is saved;

2. through setting up the verification subassembly for the work piece type of the work piece that loads in the material loading box that the bar code scanner can discern current in-use, thereby set up the machining parameter of digit control machine tool according to the work piece type is automatic, improved machining efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a numerically-controlled machine tool with an automatic feeding device for embodying the embodiment of the present application;

FIG. 2 is a top view of an embodiment of the present application for embodying a feeding mechanism;

FIG. 3 is an enlarged schematic view of a portion B in FIG. 2 according to an embodiment of the present application;

FIG. 4 is a sectional view taken along line A-A of FIG. 2 in an embodiment of the present application;

FIG. 5 is an enlarged schematic view of a portion C in FIG. 4 according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram for embodying a transfer block in an embodiment of the present application;

fig. 7 is a block diagram of a system for embodying a control terminal in the embodiment of the present application.

Description of the reference numerals: 1. a bed body; 11. a door body; 12. a clamp; 13. a box body placing groove; 14. a first cylinder placing groove; 15. a bump; 151. a material passing hole; 16. a second cylinder placing groove; 17. an audible and visual alarm; 18. placing the plate; 19. an extension plate; 2. a feeding mechanism; 21. feeding a material box; 211. mounting grooves; 212. a guide groove; 213. a first opening; 214. a weighing sensor; 22. a feed cylinder; 23. feeding a material box; 231. a material piling groove; 232. a guide strip; 233. a second opening; 24. a servo cylinder; 3. a material pushing mechanism; 31. a lifting cylinder; 32. carrying a plate; 321. a transverse plate; 322. a vertical plate; 323. replacing the port; 33. transferring the block; 331. placing holes; 34. a material pushing cylinder; 341. a material pushing rod; 35. a guide rod; 351. a limiting plate; 36. a servo motor; 4. a collection mechanism; 41. a collection box; 42. resetting the pressure spring; 421. a reset plate; 5. a control terminal; 51. a signal receiving module; 52. a data processing module; 53. a storage module; 54. a device control module; 55. a numerical control parameter setting module; 6. a verification component; 61. a code scanner; 62. verifying the plate; 7. a workpiece placement sleeve; 71. a slide hole; 72. a magnet block; 73. a connecting plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses digit control machine tool with automatic feeding device. Referring to fig. 1, the numerical control machine with the automatic feeding device comprises a machine body 1, and a door body 11 corresponding to an operation opening slides on the machine body 1. The lathe bed 1 is provided with a clamp 12 for clamping a workpiece, a cutter (not shown in the figure) for processing the workpiece, a feeding mechanism 2 for loading the workpiece, a pushing mechanism 3 for loading the workpiece into the clamp 12, a collecting mechanism 4 for collecting the workpiece, and a control terminal 5 for implementing control. Wherein, the control terminal 5 is connected with a numerical control system in a numerical control machine tool through signals.

Referring to fig. 1, the clamp 12 includes a three-jaw chuck rotatably connected to the bed 1, the three-jaw chuck is in signal connection with the control terminal 5, and includes a chuck body and jaws, when machining, a workpiece is clamped in a central mounting groove of the chuck body by the jaws, and machining of the workpiece is completed by a cutter.

Referring to fig. 1, 2 and 3, the feeding mechanism 2 comprises a feeding box 21 and a feeding cylinder 22 signally connected to the control terminal 5. Go up the even vertical a plurality of mounting grooves 211 of having seted up of workbin 21's upper surface, in this embodiment, the quantity of mounting groove 211 is three. All slide in every mounting groove 211 and be connected with a material loading box 23, the vertical windrow groove 231 that is used for piling up the work piece of offering of upper surface of material loading box 23, the width of windrow groove 231 equals the diameter of work piece. Equal fixedly connected with a pair of vertical guide strip 232 of setting on the lateral wall of every material loading box 23, the gliding guide way 212 of guide strip 232 that supplies to correspond is all seted up to the inside wall of every mounting groove 211, and at the in-process of material loading box 23 in the dismouting, guide strip 232 and the corresponding guide way 212 sliding fit play the guide effect.

Referring to fig. 2 and 3, the upper surface of the bed body 1 is provided with a box placing groove 13 and a first cylinder placing groove 14 which are communicated with each other, the upper material box 21 is slidably connected in the box placing groove 13, the feeding cylinder 22 is fixedly connected in the first cylinder placing groove 14, and a piston rod of the feeding cylinder 22 is parallel to the central mounting groove.

Referring to fig. 4 and 5, two vertical side walls of the upper box 21 perpendicular to the piston rod of the feeding cylinder 22 are respectively provided with a first opening 213 for the workpiece and the piston rod of the feeding cylinder 22 to pass through, and the first openings 213 are communicated with all the mounting grooves 211. The feeding box 23 is provided with a second opening 233 at the bottom of two vertical side walls of the piston rod perpendicular to the feeding cylinder 22, and the diameter of the second opening 233 is equal to the width of the material piling groove 231 and is not less than the diameter of the piston rod of the feeding cylinder 22. The second opening 233 is communicated with the mounting groove 211 of the feeding box 23, and when the feeding box 23 is mounted in the mounting groove 211, the second opening 233 is opposite to the first opening 213.

Referring to fig. 4 and 5, a convex block 15 located above the three-jaw chuck is fixedly connected to the bed 1, a material passing hole 151 communicated with the box body placing groove 13 and used for a workpiece to pass through is formed in the convex block 15, and a piston rod of the feeding cylinder 22 is coaxially arranged with the material passing hole 151.

Referring to fig. 1, 2 and 3, the feeding mechanism 2 further includes a servo cylinder 24 connected to the control terminal 5 through a signal, the upper surface of the bed body 1 is provided with a second cylinder placing groove 16 communicated with the box placing groove 13, and the servo cylinder 24 is fixedly connected in the second cylinder placing groove 16. The piston rod of the servo cylinder 24 is fixedly connected to the outer side wall of the upper box 21 and is perpendicular to the piston rod of the feeding cylinder 22, and the servo cylinder 24 is used for pushing the upper box 21 to slide in the box body placing groove 13. When the servo cylinder 24 stops, the second opening 233 of the feeding box 23 is always opposite to the piston rod of the feeding cylinder 22.

Referring to fig. 1 and 5, in order to facilitate timely switching of feeding box 23, a weighing sensor 214 for detecting the real-time weight of feeding box 23 is embedded in the bottom of each mounting groove 211, weighing sensors 214 and mounting grooves 211 are arranged in a one-to-one correspondence manner, weighing sensors 214 are in signal connection with control terminal 5, and the control terminal 5 records the corresponding relationship between weighing sensors 214 and mounting grooves 211. The lathe bed 1 is fixedly connected with an audible and visual alarm 17 which is in signal connection with the control terminal 5 and used for giving an alarm when the workpieces in the feeding box 23 are used up, so that a worker is reminded of supplementing the workpieces in time.

Referring to fig. 3, in order to accommodate different kinds of workpieces having different diameters, the upper magazine 23 is configured to have a plurality of types, and the different types of upper magazines 23 are different in width of the stock chute 231. In order to identify the type of the workpiece in the feeding box 23, the feeding mechanism 2 further comprises a verification assembly 6, and the verification assembly 6 comprises a code scanner 61 and a verification plate 62 arranged corresponding to the feeding box 23. The verification board 62 is fixedly connected to the opening end of the corresponding feeding box 23, and a bar code or a two-dimensional code for recording the type information of the workpiece in the corresponding feeding box 23 is printed on the verification board 62. The placing plate 18 is fixedly connected between two vertical inner side walls of the first cylinder placing groove 14, and the bar code scanner 61 is fixedly connected to the upper surface of the placing plate 18. When the second opening 233 of a certain upper magazine 23 faces the piston rod of the feeding cylinder 22, the verification plate 62 on the upper magazine 23 faces the code scanner 61 so as to be recognized by the code scanner 61. The code scanner 61 is signally connected to the control terminal 5.

Referring to fig. 1, 4 and 5, the pushing mechanism 3 includes a lifting cylinder 31, a bearing plate 32, a transfer block 33 and a pushing cylinder 34, and the lifting cylinder 31 and the pushing cylinder 34 are respectively in signal connection with the control terminal 5. The top of the bump 15 is fixedly connected with a horizontally arranged extension plate 19, and the lifting cylinder 31 is fixedly connected to the upper surface of the extension plate 19. The bearing plate 32 includes a horizontal plate 321 and a vertical plate 322, and the upper end of the vertical plate 322 is fixedly connected to the lateral wall of the horizontal plate 321 far away from the body. The piston rod of the lifting cylinder 31 vertically passes downward through the extension plate 19 and is fixedly connected to the upper surface of the cross plate 321.

Referring to fig. 4 and 5, the upper surface of the horizontal plate 321 is fixedly connected with a plurality of vertically arranged guide rods 35, the guide rods 35 pass through the extension plate 19 and are in sliding fit with the extension plate 19, a horizontally arranged limiting plate 351 is fixedly connected to the top of each guide rod 35, and the guide rods 35 play a guiding role in the operation process of the lifting cylinder 31.

Referring to fig. 4, 5 and 6, servo motor 36 is fixedly connected to the side wall of the vertical plate 322, which faces away from the feeding assembly, an output shaft of servo motor 36 horizontally penetrates through the vertical plate 322 and is fixedly connected with the transferring block 33 which is arranged in a cylindrical shape, and the output shaft of servo motor 36 and transferring block 33 are arranged coaxially. The transfer block 33 is provided with a plurality of placing holes 331 parallel to the material passing holes 151, and the plurality of placing holes 331 are uniformly distributed along the circumferential direction of the transfer block 33. The placing holes 331 are through holes, and a workpiece placing sleeve 7 is slidably arranged in each placing hole 331.

Referring to fig. 5 and 6, a sliding hole 71 for accommodating the workpiece is formed in the workpiece placing sleeve 7 along the axial direction thereof, the sliding hole 71 is a through hole, and the diameter of the sliding hole 71 is matched with that of the workpiece. In order to fit workpieces of different diameters, the sliding holes 71 on different workpiece placement sleeves 7 are different in diameter, and the diameter of each sliding hole 71 is matched to one workpiece.

Referring to fig. 5 and 6, the magnet block 72 is fixedly embedded in the inner side wall of each sliding hole 71, and when a workpiece is pushed into the sliding hole 71, the magnet block 72 adsorbs the workpiece, so that the possibility of accidental displacement of the workpiece is reduced.

Referring to fig. 5, one end of the workpiece placing sleeve 7 is fixedly connected with a connecting plate 73, and the connecting plate 73 is arranged in a circular ring shape, so that a piston rod of the pushing cylinder 34 can pass through the connecting plate. The connecting plate 73 is detachably connected to the end face, far away from the feeding assembly, of the transfer block 33 through a bolt, so that the workpiece placing sleeve 7 is detachably connected with the transfer block 33, and replacement of the workpiece placing sleeve 7 is facilitated.

Referring to fig. 5, the pushing cylinder 34 is fixedly connected to the side wall of the vertical plate 322 far away from the feeding assembly and below the servo motor 36. An output shaft of the material pushing cylinder 34 penetrates through the vertical plate 322 and is coaxially and fixedly connected with a material pushing rod 341, the diameter of the material pushing rod 341 is smaller than that of the sliding hole 71, and the material pushing rod 341 is horizontally arranged and is parallel to the material passing hole 151 and a central mounting groove of the three-jaw chuck. The vertical plate 322 is horizontally provided with a replacing opening 323 for the workpiece placing sleeve 7 and the connecting plate 73 to pass through, when the servo motor 36 stops rotating, one workpiece placing sleeve 7 always aligns to the replacing opening 323, and meanwhile, the other workpiece placing sleeve 7 is provided with a sliding hole 71 which is opposite to the material pushing rod 341.

Referring to fig. 5, when the piston rod of the lifting cylinder 31 is in a contracted state, the sliding hole 71 of one of the workpiece placement sleeves 7 on the transfer block 33 is opposite to the material passing hole 151, so that the feeding cylinder 22 can push the workpiece into the sliding hole 71 of the workpiece placement sleeve 7. When the piston rod of the lifting cylinder 31 is in an extended state, the sliding hole 71 in which the workpiece is placed is aligned with the central mounting groove of the three-jaw chuck, so that the material pushing cylinder 34 drives the material pushing rod 341 to push the workpiece into the central mounting groove of the three-jaw chuck.

Referring to fig. 3 and 7, the control terminal 5 includes a signal receiving module 51, a data processing module 52, a storage module 53, a device control module 54, and a numerical control parameter setting module 55. When the workpieces need to be machined, a worker installs the upper magazine 23 stacked with the workpieces to be machined into the installation groove 211, so that the verification plate 62 on one of the upper magazines 23 is aligned with the code scanner 61. At this time, the operator sends a code scanning command to the code scanner 61 through the device control module 54 in the control terminal 5, so that the code scanner 61 performs a code scanning operation, thereby recognizing the current workpiece type of the workpiece in the feeding box 23 of the feeding cylinder 22 and feeding back the recognized current workpiece type to the control terminal 5. The signal receiving module 51 in the control terminal 5 transmits the received current workpiece type to the data processing module 52, so that the data processing module 52 retrieves the current tool processing parameter corresponding to the current workpiece type based on the corresponding relationship between the current workpiece type and the tool processing parameter pre-stored in the storage module 53. Then, the control terminal 5 inputs the current tool processing parameters into the numerical control system of the numerical control machine through the numerical control parameter setting module 55, so that the numerical control system can be directly called conveniently during subsequent processing, and the parameters do not need to be manually input into the numerical control system by a worker.

Meanwhile, referring to fig. 5 and 7, the data processing module 52 generates a rotation position control instruction for the servo motor 36 based on the current workpiece type and the correspondence between the workpiece type and the gear of the servo motor 36 stored in advance in the storage module 53, and controls the servo motor 36 to rotate to a specified angle through the device control module 54, so that the workpiece placing sleeve 7 facing the material pushing cylinder 34 is the workpiece placing sleeve 7 corresponding to the current workpiece type.

Referring to fig. 3, 5 and 7, after the signal receiving module 51 receives a processing start signal input by a worker, the device control module 54 sends control instructions to the feeding cylinder 22, the lifting cylinder 31, the material pushing cylinder 34 and the three-jaw chuck respectively, and at the same time, the device control module 54 controls the operation of the tool through a numerical control system. In this embodiment, taking a process of processing a workpiece as an example, first, the telescopic rod of the feeding cylinder 22 completes one telescopic motion, so as to push out the lowest workpiece in the feeding box 23 that is currently aligned, so that the workpiece enters the sliding hole 71 in the workpiece placing sleeve 7 that is currently aligned after passing through the material passing hole 151. After the telescopic rod of the feeding cylinder 22 completes the extending action and retracts, the workpiece just finishes entering the sliding hole 71. Then, the piston rod of the lifting cylinder 31 extends out, so that the bearing plate 32 is driven to integrally descend, and finally the workpiece is moved downwards to a position right facing the central mounting groove of the three-jaw chuck. After the piston rod of the lifting cylinder 31 is completely stretched out, the piston rod of the material pushing cylinder 34 performs primary telescopic action, so that the workpiece is pushed into the central mounting groove of the three-jaw chuck, and the workpiece is clamped by the jaws of the three-jaw chuck. Then, the piston rod of the lifting cylinder 31 is retracted, and the cutter processes the workpiece under the control of the numerical control system, thereby completing one processing action.

Referring to fig. 1, 5 and 7, in the using process, the weighing sensors 214 detect the mass of the feeding boxes 23 in the corresponding mounting grooves 211 in real time, when the mass of a certain feeding box 23 is detected to be reduced to a preset empty box threshold, it represents that all workpieces in the feeding box 23 are sent out, at this time, the weighing sensors 214 feed back a replacement notification signal to the control terminal 5, so that the control terminal 5 sends a real-time weighing instruction to all the weighing sensors 214 through the device control module 54, so that each weighing sensor 214 acquires real-time weighing data once, and feeds back the acquired real-time weighing data to the control terminal 5. Meanwhile, the control terminal 5 controls the audible and visual alarm 17 to alarm through the device control module 54 after receiving the replacement notification signal through the signal receiving module 51.

Then, the data processing module 52 determines the remaining condition of the workpieces in the feeding boxes 23 in the mounting grooves 211 of the feeding box 21 based on the real-time weighing data received by the signal receiving module 51, and further identifies the target feeding box 23 to be used next. Then, the control terminal 5 controls the telescopic rod of the servo cylinder 24 to move through the device control module 54, so that the servo cylinder 24 drives the feeding box 21 to move, the second opening 233 of the target feeding box 23 is opposite to the piston rod of the feeding cylinder 22, and the automatic switching of the feeding box 23 is completed.

Referring to fig. 1 and 5, the collecting mechanism 4 includes a collecting box 41 placed below the three-jaw chuck, and an upper surface of the collecting box 41 is provided in an open shape. A reset pressure spring 42 is arranged in the central mounting groove of the chuck body, one end of the reset pressure spring 42 is fixedly connected to the bottom wall of the central mounting groove, the other end of the reset pressure spring 42 is fixedly connected with a reset plate 421, and after the clamping jaws of the three-jaw chuck loosen the workpiece, the workpiece is ejected out under the elastic action of the reset pressure spring 42 and falls into the collection box 41.

The implementation principle of the embodiment of the application is as follows: during machining, a worker loads a workpiece to be machined into the matched feeding box 23 and loads the feeding box 23 into the feeding box 21, and in the process, the worker does not need to open and close the door body 11. And then, starting the control terminal 5 by the worker, so that the control terminal 5 is matched with a numerical control system in the numerical control machine tool to automatically control the processing flow of the workpiece. In the process, under the control of the control terminal 5, the feeding cylinder 22 pushes the workpieces in the feeding box 23 into the workpiece placing sleeve 7 one by one, the lifting cylinder 31 moves the workpiece placing sleeve 7 carrying the workpieces to the three-jaw chuck, and the pushing cylinder 34 pushes the workpieces into the three-jaw chuck, so that the workpieces are not required to be replaced manually, the processing efficiency is improved, and the manpower is saved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a digit control machine tool with automatic feeding device, includes lathe bed (1), is provided with anchor clamps (12) that are used for the centre gripping work piece and is used for processing the cutter of work piece on lathe bed (1), and the door body (11) that slide on lathe bed (1) and correspond the operation mouth, the central point of anchor clamps (12) puts and is provided with the center mounting groove that is used for the centre gripping work piece, its characterized in that: the lathe bed (1) is provided with a feeding mechanism (2) for loading workpieces, a pushing mechanism (3) for loading the workpieces into the fixture (12), a collecting mechanism (4) for collecting the workpieces and a control terminal (5) for implementing control, wherein the control terminal (5) is respectively in signal connection with the feeding mechanism (2) and the pushing mechanism (3);

the feeding mechanism (2) comprises a feeding box (21) and a feeding cylinder (22) which are arranged in a lathe bed (1), a piston rod of the feeding cylinder (22) is parallel to a central mounting groove, workpieces which are horizontally arranged are vertically stacked in the feeding box (21), a first opening (213) through which the piston rod of the workpiece and the feeding cylinder (22) can pass is formed in the bottom of the feeding box (21), a material passing hole (151) communicated with the first opening (213) is formed in the lathe bed (1), the material passing hole (151) is located on one side, away from the feeding cylinder (22), of the feeding box (21), and the material passing hole (151) and the piston rod of the feeding cylinder (22) are coaxially arranged;

the pushing mechanism (3) comprises a lifting cylinder (31), a bearing plate (32), a transfer block (33) and a pushing cylinder (34), the lifting cylinder (31) is connected to the bed body (1), a piston rod of the lifting cylinder (31) is vertically arranged downwards and connected with the bearing plate (32), the transfer block (33) and the pushing cylinder (34) are respectively connected to the bearing plate (32), a workpiece placing sleeve (7) is connected in the transfer block (33), a sliding hole (71) used for containing a workpiece is formed in the workpiece placing sleeve (7), the sliding hole (71) is a through hole and is parallel to a material passing hole (151), the pushing cylinder (34) is located on one side, away from the clamp (12), of the transfer block (33), a piston rod of the pushing cylinder (34) is coaxially arranged with the sliding hole (71), and a pushing rod (341) is coaxially connected to the piston rod of the pushing cylinder (34), the lifting cylinder (31) is used for pushing the transfer block (33) to move in the vertical direction, so that the sliding hole (71) is aligned with the material passing hole (151) or the central mounting groove;

the upper surface of the feeding box (21) is vertically provided with a plurality of mounting grooves (211) communicated with the first opening (213), each mounting groove (211) is internally detachably connected with a feeding box (23) used for stacking workpieces, two vertical side walls of the feeding box (23) perpendicular to a piston rod of the feeding cylinder (22) are respectively provided with a second opening (233), and when the feeding box (23) is mounted in the mounting groove (211), the second openings (233) are opposite to the first openings (213); a servo cylinder (24) used for pushing the feeding box (21) to slide along the direction perpendicular to the piston rod of the feeding cylinder (22) is arranged in the machine body (1), and the servo cylinder (24) is in signal connection with the control terminal (5) and used for switching the feeding box (23) opposite to the material passing hole (151); the feeding box (23) is provided with a plurality of types, the feeding boxes (23) of different types are used for loading different types of workpieces, the feeding mechanism (2) further comprises a verification assembly (6) in signal connection with the control terminal (5), the verification assembly (6) comprises a code scanner (61) and a verification plate (62) arranged corresponding to the feeding box (23), the code scanner (61) is connected with the machine body (1), the verification plate (62) is connected with the corresponding feeding box (23), and a bar code or a two-dimensional code which can be identified by the code scanner (61) and is recorded with type information of the workpieces in the corresponding feeding box (23) is printed on the verification plate (62); the control terminal (5) is used for setting the machining parameters of the numerical control machine tool based on the identification result of the code scanner (61);

it is on a parallel with punishment in advance hole (151) to shift piece (33) to be cylindrical setting and axis direction, the work piece is placed sleeve (7) and is provided with a plurality ofly in shifting piece (33), and is a plurality of the work piece is placed sleeve (7) and is followed the circumference evenly distributed that shifts piece (33), be provided with servo motor (36) of signal connection in control terminal (5) on loading board (32), control terminal (5) still are used for based on the current work piece kind received and prestore the corresponding relation of some work piece kinds and servo motor gears, adjust servo motor (36)'s turned angle, make just right it places sleeve (7) for the work piece that the current work piece kind corresponds and places sleeve (7) to push away the work piece of material cylinder (34).

2. The numerical control machine tool with the automatic feeding device according to claim 1, characterized in that: the control terminal (5) comprises a signal receiving module (51), a data processing module (52), a storage module (53), an equipment control module (54) and a numerical control parameter setting module (55);

the device control module (54) is used for sending a code scanning instruction to the code scanner (61) so that the code scanner (61) executes a code scanning action and obtains a current workpiece type corresponding to a workpiece in the feeding box (23) of the feeding cylinder (22), the signal receiving module (51) is used for receiving the current workpiece type and transmitting the current workpiece type to the data processing module (52), the data processing module (52) is used for calling current tool machining parameters corresponding to the current workpiece type based on the current workpiece type and the corresponding relation between the workpiece type and the tool machining parameters stored in the storage module (53) in advance, and the numerical control parameter setting module (55) is used for inputting the current tool machining parameters into a numerical control system preset in a numerical control machine; the equipment control module (54) is also used for controlling the operation of the feeding mechanism (2) and the pushing mechanism (3) based on the identified current workpiece type.

3. The numerical control machine with the automatic feeding device according to claim 2, characterized in that: every the tank bottom of mounting groove (211) all inlays and is equipped with weighing sensor (214) that are used for detecting the real-time weight of material loading box (23), weighing sensor (214) signal connection is in control terminal (5), weighing sensor (214) are used for when detecting the quality of corresponding material loading box (23) and drop to predetermined empty box threshold value, to control terminal (5) send change notice signal, control terminal (5) are used for receiving behind the change notice signal at signal receiving module (51), through equipment control module (54) sends a real-time weighing instruction to all weighing sensor (214), make each weighing sensor (214) acquire real-time weighing data once to feed back the real-time weighing data that obtains to control terminal (5) respectively, data processing module (52) are used for based on each real-time weighing data that signal receiving module (51) received, identifying a next target magazine (23) containing the most workpieces to be used; the equipment control module (54) is also used for controlling the telescopic rod of the servo cylinder (24) to move based on the identified target feeding box (23), so that the second opening (233) of the target feeding box (23) is opposite to the piston rod of the feeding cylinder (22).

4. The numerical control machine tool with the automatic feeding device according to claim 3, characterized in that: the lathe bed (1) is provided with an audible and visual alarm (17) which is in signal connection with the control terminal (5), and the equipment control module (54) is also used for controlling the audible and visual alarm (17) to give an alarm after the signal receiving module (51) receives the replacement notification signal.

5. The numerical control machine with the automatic feeding device according to claim 2, characterized in that: the data processing module (52) is further used for generating a rotating position control instruction for the servo motor (36) based on the current workpiece type and the corresponding relation between the workpiece type and the servo motor gear position pre-stored in the storage module (53) after the signal receiving module (51) receives the current workpiece type, and the equipment control module (54) is further used for adjusting the rotating angle of the servo motor (36) based on the rotating position control instruction, so that the workpiece placing sleeve (7) of the material pushing cylinder (34) is the workpiece placing sleeve (7) corresponding to the current workpiece type.

6. The numerical control machine tool with the automatic feeding device according to claim 1, characterized in that: the workpiece placement sleeve (7) is detachably connected to the transfer block (33).

7. The numerical control machine tool with the automatic feeding device according to claim 1, characterized in that: the collecting mechanism (4) comprises a collecting box (41) placed below the fixture (12), the upper surface of the collecting box (41) is in an open shape, a reset pressure spring (42) is arranged in the center mounting groove, one end of the reset pressure spring (42) is connected to the bottom wall of the center mounting groove, and the other end of the reset pressure spring is connected with a reset plate (421).

8. The numerical control machine tool with the automatic feeding device according to claim 1, characterized in that: and a magnet block (72) is embedded in the inner side wall of the sliding hole (71).