CN115106825A

CN115106825A - Automatic production line for machining of numerical control machine tool and machining method of automatic production line

Info

Publication number: CN115106825A
Application number: CN202210643678.6A
Authority: CN
Inventors: 黄仁标; 朱建林; 郭宏斌
Original assignee: Ningbo Ruyi JSCL
Current assignee: Ningbo Ruyi JSCL
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-27

Abstract

The invention provides an automatic production line for machining of a numerical control machine tool, which is characterized by comprising the following steps: a numerical control machine; the feeding and discharging device comprises a mechanical arm, a clamp used for clamping a part to be machined and placing the part to the numerical control machine tool or moving the machining qualified piece out of the numerical control machine tool is arranged on the mechanical arm, a quick-change assembly is arranged between the clamp and the mechanical arm, the quick-change assembly comprises a quick-change upper die and a quick-change lower die, the quick-change upper die is connected with the quick-change lower die, the quick-change upper die is fixed with the mechanical arm, and the quick-change lower die is fixed with the clamp through a connecting flange; the feeding device is used for conveying the part to be machined to a mechanical arm grabbing position; the automatic feeding device has the advantages that the mechanical automatic feeding is realized by arranging the feeding device; through being provided with the arm, can replace the manual work to go up the unloading operation for whole processing production process does not need artificial too much intervention, reduces manpower resources's consumption, makes an operating personnel can operate many digit control machine tools.

Description

Automatic production line for machining of numerical control machine tool and machining method of automatic production line

Technical Field

The invention belongs to the technical field of machining production machinery, and particularly relates to an automatic production line for machining of a numerical control machine tool and a machining method of the automatic production line.

Background

A computer numerical control machine tool is an automatic machine tool provided with a program control system. The control system is capable of logically processing a program defined by a control code or other symbolic instructions and decoding the program to operate the machine tool to machine a part. At present, the machining of numerical control machines generally adopts the modes of manual feeding, manual clamping and manual discharging, and each numerical control machine needs to be operated by one worker, so that larger human resources are needed; in the manual assembly operation process, the labor intensity of single operation is high, fatigue is easy to generate, so that the problems of infirm clamping, inaccurate positioning and the like are caused, and the reworking and scrapping of workpieces are easy to cause; when the material is loaded and unloaded manually, the accident that the thorn bits scratch often takes place, and the cutting fluid has certain corrosivity, influences the healthy of staff.

Disclosure of Invention

The invention aims to provide an automatic production line for machining a numerical control machine tool and a machining method thereof, which are used for realizing machining automation and reducing manual intervention aiming at the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a digit control machine tool processing automation line, includes:

a numerical control machine tool;

the feeding and discharging device comprises a mechanical arm, a clamp used for clamping a part to be machined and placing the part to the numerical control machine tool or moving a machining qualified piece out of the numerical control machine tool is arranged on the mechanical arm, a quick-change assembly is arranged between the clamp and the mechanical arm, the quick-change assembly comprises a quick-change upper die and a quick-change lower die, the quick-change upper die is connected with the quick-change lower die, the quick-change upper die is fixed with the mechanical arm, and the quick-change lower die is fixed with the clamp through a connecting flange;

and the feeding device is used for conveying the part to be processed to the mechanical arm grabbing position.

In an above-mentioned numerical control machine tool machining automation line, material feeding unit includes:

the feeding machine comprises a feeding frame, wherein a fixed guard plate and a side guard plate are arranged on the feeding frame, the length direction of the fixed guard plate is parallel to that of the side guard plate, and a gap for conveying shaft parts is formed between the fixed guard plate and the side guard plate;

the shaft part positioning device comprises a positioning rack, the positioning rack is connected with the feeding rack, the upper surfaces of the positioning rack and the feeding rack are inclined planes, two guide plates are oppositely arranged on the positioning rack, a gap for conveying the shaft parts is formed between the two guide plates, a first positioning block for positioning the shaft parts is arranged on the positioning rack, a first positioning groove is arranged on the first positioning block, a positioning stop block and a positioning push block are oppositely arranged on the positioning rack, the positioning stop block, the positioning push block and the first positioning groove are positioned on the same horizontal line, a first pushing piece is arranged on the positioning push block, and the first pushing piece pushes the shaft parts to move towards the positioning stop block.

The ejector plate is arranged between the feeding rack and the positioning rack, and a driving piece for driving the ejector plate to work is arranged on the ejector plate.

the bottom of the workbench is provided with a roller;

the number of the limiting strips is at least two, and the limiting strips are oppositely arranged on the workbench and are rotationally connected with the workbench;

the supporting block is used for supporting the placement of a part to be processed and is arranged on the limiting strip;

the limiting plate is arranged on the supporting block, a limiting hole for placing a part to be processed is formed in the limiting plate, and a supporting column is arranged between the limiting plate and the supporting block, so that a gap is formed between the limiting plate and the supporting block;

the positioning unit, the positioning unit is including centering on four stands of the bottom of workstation are close to all be provided with the deflector on two stands of one side of arm, the deflector sets up respectively one side of keeping away from the workstation on the stand, just the stand is facing to the one side of workstation is provided with the cushion column, keeps away from be provided with the screens board towards the workstation on two other stands of arm one side, just the screens board offsets with the workstation, the lower surface of screens board is provided with the lug, the upper surface of stand is provided with the spout, the lug can slide in the spout, the bolt passes behind the screens board and pegs graft fixedly mutually with the stand.

In the automatic production line for machining the numerical control machine tool, the clamp comprises a first connecting block arranged on the connecting flange, two bases are oppositely arranged on the first connecting block, clamping blocks are arranged on the two bases, clamping grooves for grabbing shaft parts are arranged on the clamping blocks, the bases are in sliding fit with the first connecting block, so that the two clamping blocks can be relatively clamped and loosened, a connecting plate is arranged on the first connecting block, a sliding block is fixed on one side of the connecting plate, facing the connecting flange, a sliding rail is fixed on the connecting flange, the sliding rail is in sliding fit with the sliding block, fixed blocks are arranged on two sides of the connecting plate, two connecting seats are oppositely arranged on the connecting flange, a mounting groove is formed in each connecting seat, the fixed blocks are arranged in the mounting groove and can slide in the mounting groove, an elastic connecting piece is arranged in the mounting groove, one end of the elastic connecting piece is connected with the fixing block, and the other end of the elastic connecting piece is connected with the connecting seat.

In foretell digit control machine tool machining automation line, anchor clamps include mount pad and three press from both sides indicate, the mount pad with flange is fixed mutually, press from both sides indicate with mount pad slidable relatively for three press from both sides indicate can press from both sides tightly relatively, loosen, be provided with the bullet roof board on the mount pad, the bullet roof board orientation the one side interval of mount pad is provided with a plurality of bullet knock pins, bullet knock pin with be provided with the elastic component between the mount pad.

In foretell digit control machine tool machining automation line, still include selective examination pay-off frock, conveying selective examination pay-off frock includes:

a feeding frame;

the positioning assembly is arranged on the feeding rack and used for positioning a machined part;

the driving assembly comprises a rodless cylinder, the rodless cylinder is arranged on the feeding rack, the length direction of the rodless cylinder is parallel to that of the feeding rack, a sliding block is arranged on the rodless cylinder, the sliding block is in sliding fit with the rodless cylinder, and the sliding block is connected with the positioning assembly to drive the positioning assembly to work;

the button box is arranged on the feeding rack, and a control button in the button box is electrically connected with the rodless cylinder.

In the above automatic production line for machining of the numerically-controlled machine tool, the positioning assembly comprises a first supporting plate arranged on the sliding block, a first positioning unit is arranged on the first supporting plate, the first positioning unit comprises an adjusting disc arranged on the first supporting plate and three positioning shafts for positioning machining parts, three adjusting grooves with the same shape are arranged on the adjusting disc at intervals around the central position of the adjusting disc, a rotating seat is arranged between the adjusting disc and the first supporting plate, three first limiting grooves are arranged on the rotating seat at intervals around the central position of the rotating seat, the three positioning shafts vertically penetrate the first limiting grooves and the adjusting grooves upwards, two first limiting blocks are arranged at intervals at the bottom of each positioning shaft, and gaps are arranged between the rotating seat and the first supporting plate and between the adjusting disc and the rotating seat, two first stopper sets up respectively in the clearance that corresponds, and holding screw passes the center of adjusting disk and the looks spiro union of rotatory 2, will the adjusting disk locks.

In foretell digit control machine tool machining automation line, locating component is including setting up second backup pad on the slider, be provided with second positioning unit in the second backup pad, second positioning unit is including setting up fixed plate in the second backup pad, be provided with two at least second locating pieces on the fixed plate, every all be provided with the second constant head tank on the second locating piece, follow the length direction of fixed plate is provided with two second stoppers relatively, just be provided with the spacing groove in the second backup pad, the second locating piece with the bottom of limiting plate all is provided with the second connecting block, the second connecting block sets up the spacing inslot and can with spacing groove sliding fit.

In an above-mentioned digit control machine tool processing automation line, still include:

the fixture quick-change tool comprises a quick-change support, wherein two support plates are oppositely arranged on the quick-change support, support grooves for supporting a quick-change lower die are respectively arranged on the two support plates, a quick-change support plate is arranged between the quick-change upper die and the connecting flange, two positioning holes are oppositely arranged on the quick-change support plate, positioning columns are oppositely arranged on the support plates, and when the quick-change lower die is placed on the support plates, the positioning columns penetrate through the positioning holes, and then the support plates support the quick-change support plates;

the part reversing tool comprises a reversing support, a fixed seat is arranged on the reversing support, the fixed seat and the part reversing support enclose a cavity for placing a part to be machined, an upper pressure plate and a lower supporting plate which are used for clamping the part to be machined are arranged in the cavity, a second pushing piece is arranged on the fixed seat, and the second pushing piece pushes the upper pressure plate to move towards the direction of the lower supporting plate until the upper pressure plate and the lower supporting plate clamp the part to be machined.

A processing method of an automatic production line for numerical control machine tool processing comprises the following steps:

s1, manually placing the part to be machined on a feeding device, conveying the part to be machined by the feeding device, and conveying the part to be machined to a mechanical arm grabbing position;

s2, after the part to be machined is conveyed to the designated position, the mechanical arm starts to work, and a clamp on the mechanical arm grabs the part to be machined;

s3, grabbing the part to be machined onto a chuck of the numerical control lathe by the mechanical arm, and clamping the part to be machined by the chuck;

s4, the numerical control machine starts to work, and the part to be processed is processed;

s5, stopping the numerical control machine tool, finishing machining, grabbing the machined part on the chuck by the mechanical arm, loosening the chuck, driving the machined part to move to a part reversing tool by the mechanical arm, and replacing the direction of the machined part clamped by the mechanical arm by using the part reversing tool;

s6, repeating the steps S3-S4;

s7, the manipulator controls one of the clamps to grab one part to be processed in the step S1 to wait;

s8, after the parts to be machined in the previous batch are machined in the numerical control machine tool, the manipulator controls another clamp to grab the machined parts on the chuck of the numerical control machine tool and remove the machined parts from the chuck, and then the manipulator places the parts to be machined, which are grabbed by one clamp in the step S7, on the chuck of the numerical control machine tool;

s9, the other clamp is controlled by the manipulator to place the machined part on the material rack;

s10, repeating the steps S1-S9.

Compared with the prior art, the invention has the following beneficial effects:

an automatic production line for machining of a numerical control machine tool is provided with a feeding device, so that mechanical automatic feeding is realized; the mechanical arm can replace manual work to carry out loading and unloading operation, so that excessive manual intervention is not needed in the whole processing and production process, the consumption of human resources is reduced, and one operator can operate a plurality of numerical control machines; compared with the traditional manual assembly, the assembly operation can be repeated by using the mechanical arm, the fatigue is avoided, and the problems of infirm clamping, inaccurate positioning and the like are caused; when unloading in the manual work, the accident that often has the thorn bits scratch takes place, and the cutting fluid has certain corrosivity, influences the healthy of staff, and utilize the arm to go up unloading operation and then do not need worry and cause the influence to the personal safety.

Drawings

FIG. 1 is a top view of a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a feeding device according to a first embodiment of the invention;

FIG. 3 is an enlarged partial schematic view of FIG. 2 at A;

fig. 4 is a schematic perspective view illustrating a loading and unloading device according to a first embodiment of the present invention;

FIG. 5 is a partial enlarged structural view at B in FIG. 4;

fig. 6 is a schematic perspective view of a delivery sampling inspection tool according to a first embodiment of the present invention;

FIG. 7 is a top view of a second embodiment of the present invention;

fig. 8 is a schematic perspective view of a feeding device according to a second embodiment of the present invention;

FIG. 9 is a schematic perspective view of a clip according to a second embodiment of the present invention;

fig. 10 is a schematic perspective view illustrating a second exemplary delivery inspection tool according to the second embodiment of the present disclosure;

fig. 11 is a schematic perspective view illustrating a second exemplary delivery inspection tool according to the second embodiment of the present disclosure;

FIG. 12 is a schematic perspective view of a quick-change tool for a fixture according to the present invention;

fig. 13 is a schematic perspective view of the part reversing tool in the present invention.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows: as shown in fig. 1, an automatic production line for machining by a numerical control machine tool includes:

a numerical control machine 1;

the feeding and discharging device 3 comprises a mechanical arm 3200, a clamp 3300 used for clamping a part to be machined to be placed on the numerical control machine tool 1 or moving a machining qualified piece out of the numerical control machine tool 1 is arranged on the mechanical arm 3200, a quick-change assembly is arranged between the clamp 3300 and the mechanical arm 3200 and comprises a quick-change upper die 3401 and a quick-change lower die 3402, the quick-change upper die 3401 is connected with the quick-change lower die 3402, the quick-change upper die 3401 is fixed with the mechanical arm 3200, and the quick-change lower die 3402 is fixed with the clamp 3300 through a connecting flange 3403;

and the feeding device 2 is used for conveying the part to be processed to the grabbing position of the mechanical arm 3200, and the feeding device 2 is used for conveying the part to be processed to the grabbing position of the mechanical arm 3200.

An automatic production line for machining of a numerical control machine tool is provided with a feeding device 2, so that mechanical automatic feeding is realized; the mechanical arm 3200 can replace manual loading and unloading operation, so that excessive manual intervention is not needed in the whole processing and production process, the consumption of human resources is reduced, and one operator can operate a plurality of numerical control machines; compared with the traditional manual assembly, the mechanical arm 3200 is used for assembly operation, so that the single assembly operation can be repeated, fatigue cannot be caused, and the problems of infirm clamping, inaccurate positioning and the like can be caused; when unloading in the manual work, there is the accident of thorn bits scratch often to take place, and the cutting fluid has certain corrosivity, influences the healthy of staff, and utilizes arm 3200 to go up unloading operation and then does not worry about causing the influence to the personal safety.

Specifically, the processing lines in this embodiment are long axis class parts machining lines, and in order to guarantee operating personnel's security, in the workshop, be provided with the protection rail and separate the processing region with non-processing region to this guarantees operating personnel's personal safety.

Preferably, as shown in fig. 2 and 3, the feeding device 2 includes:

the feeding frame 2100 is provided with a fixed guard plate 2101 and a side guard plate 2102, the length direction of the fixed guard plate 2101 is parallel to the length direction of the side guard plate 2102, and a gap for conveying shaft parts is formed between the fixed guard plate 2101 and the side guard plate 2102;

the positioning rack 2200 is connected with the feeding rack 2100, the upper surfaces of the positioning rack 2200 and the feeding rack 2100 are inclined surfaces, two guide plates 2201 are oppositely arranged on the positioning rack 2200, a gap for conveying shaft parts is formed between the two guide plates 2201, a first positioning block 2202 for positioning the shaft parts is arranged on the positioning rack 2200, a first positioning groove 2203 is arranged on the first positioning block 2202, a positioning stop block 2601 and a positioning push block 2600 are oppositely arranged on the positioning rack 2200, the positioning stop block 2601, the positioning push block 2600 and the first positioning groove 2203 are located on the same horizontal line, a first pushing piece 2602 is arranged on the positioning push block 2600, and the first pushing piece 2602 pushes the shaft parts to move towards the positioning stop block 2601.

The ejector plate 2300 is arranged between the loading frame 2100 and the positioning frame 2200, and a driving member (not shown) for driving the ejector plate 2300 to work is arranged on the ejector plate 2300.

Specifically, guide rods 2401 are arranged between the fixed guard plate 2101 and the side guard plate 2102 and between the two guide plates 2201, so that contact between a part to be machined and a rack can be reduced, friction and dirt are reduced, connecting pieces (not shown in the figure) are arranged on the side guard plate 2102 and the guide plates 2201, the rack is provided with a plurality of bolt holes, a set screw passes through one of the bolt holes and then is locked through a nut, and therefore the distance between the fixed guard plate 2101 and the side guard plate 2102 and between the two guide plates 2201 can be adjusted, and the feeding device can adapt to parts to be machined with different lengths; the first pushing piece 2602 is an air cylinder, and the air cylinder can push the part to be machined to move towards the positioning stop block 2601 until one end of the part to be machined, which is close to the positioning stop block 2601, abuts against the positioning stop block 2601, so that the part to be machined is positioned more accurately; a photoelectric sensor 2501 is arranged on the positioning rack and used for monitoring whether the mechanical arm 3200 clamps the conveying part or not; the first positioning block 2202 is provided with a material baffle 2500.

Furthermore, the driving piece is a cylinder, a connecting plate (not shown in the figure) is arranged below the ejector plate 2300, a cylinder shaft of the cylinder is vertically and upwards fixed with the connecting plate, adjusting plates 2303 are oppositely arranged on two sides of the ejector plate 2300, an adjusting waist-shaped hole is formed in the adjusting plates 2303, a set screw penetrates through the adjusting waist-shaped hole and then is respectively in threaded connection with the connecting plate and the ejector plate 2300, the distance between the connecting plate and the ejector plate 2300 is adjustable, the working stroke of the ejector plate 2300 is adjustable, guide rods are arranged on two sides of the connecting plate, and shock absorbing pads are arranged on the guide rods.

In this embodiment, by providing the feeding frame 2100 and the positioning frame 2200 with inclined upper surfaces, the shaft part to be processed can roll along the feeding frame 2100, and the part is pushed into the first positioning groove 2203 on the first positioning block 2202 of the positioning frame 2200 by the ejector plate 2300 to position the part to be processed, so that the mechanical arm 3200 can grasp the part to be processed later, thereby meeting the requirement of automatic production and improving the production efficiency; cooperate through location ejector pad 2600 and location dog 2601, treat that the part of processing carries out more accurate location to anchor clamps 3300 snatchs, reduces positioning error.

Further preferably, as shown in fig. 4 and 5, the clamp 3300 includes a first connecting block 3501 disposed on the connecting flange 3403, two bases 3502 are disposed on the first connecting block 3501 in an opposite manner, clamping blocks 3503 are disposed on the two bases 3502, clamping grooves 3504 for gripping shaft-like parts are disposed on the clamping blocks 3503, the bases 3502 are slidably fitted with the first connecting block 3501 such that the two clamping blocks 3503 can be clamped and released in an opposite manner, a connecting plate 3507 is disposed on one side of the first connecting block 3501 facing the connecting flange 3403, a sliding block 3508 is secured on the connecting plate 3507, a sliding rail 3509 is secured on the connecting flange 3403, the sliding rail 3509 is slidably fitted with the sliding block 3508, fixing blocks 3510 are disposed on both sides of the connecting plate 3507, two connecting blocks 3511 are disposed on the connecting flange 3403 in an opposite manner, a mounting groove 3512 is disposed on the connecting block 3511, the fixing block 3510 is disposed in the mounting groove 3512, and the fixing block 3510 is slidable in the mounting groove, an elastic connecting piece (not shown in the figure) is arranged in the mounting groove 3512, one end of the elastic connecting piece is connected with the fixing block 3510, and the other end of the elastic connecting piece is connected with the connecting seat 3511.

Through being provided with elastic connecting piece and slide rail 3509 and cooperateing for this anchor clamps 3300 can carry out rocking of small amplitude, reduces the rigidity collision when anchor clamps 3300 snatchs the product to and anchor clamps 3300 press from both sides and get the product and place the rigidity collision when the lathe is processed, increase anchor clamps 3300's life.

Preferably, as shown in fig. 6, the automatic production line for numerical control machine tool machining further includes a selective inspection feeding tool, and the selective inspection feeding tool for conveying includes:

the positioning component is arranged on the feeding rack 4100 and is used for positioning a machined part;

the driving assembly comprises a rodless cylinder 4200, the rodless cylinder 4200 is arranged on the feeding rack 4100, the length direction of the rodless cylinder 4200 is parallel to the length direction of the feeding rack 4100, a sliding block 4201 is arranged on the rodless cylinder 4200, the sliding block 4201 is in sliding fit with the rodless cylinder 4200, and the sliding block 4201 is connected with the positioning assembly to drive the positioning assembly to work;

the button box 4300, button box 4300 set up on the pay-off frame 4100 and the control button and rodless cylinder 4200 electricity of 4300 in the button box are connected, when needing to carry out the selective examination, control the locating component and drive the selective examination part to send out from the processing area through the control button in the button box 4300.

Further preferably, the positioning assembly includes a second support plate 4500 disposed on the slider 4201, a second positioning unit is disposed on the second support plate, the second positioning unit includes a fixing plate 4501 disposed on the second support plate 4500, at least two second positioning blocks 4502 are disposed on the fixing plate 4501, a second positioning groove 4503 is disposed on each second positioning block 4502, two limiting blocks 4504 are disposed along the length direction of the fixing plate 4501, a limiting groove 4505 is disposed on the second support plate 4500, second connecting blocks 4506 are disposed at the bottoms of the second positioning blocks 4502 and the limiting blocks 4504, and the second connecting blocks 4506 are disposed in the limiting grooves 4505 and can be in sliding fit with the limiting grooves 4505.

Specifically, the manipulator can be controlled by the prior art to clamp a part and place the part on the feeding spot check tool for spot check after a batch of parts are quantitatively produced, a sensor can be arranged on the feeding rack 4100, and the sensor senses the action of clamping the machined part by the manipulator and placing the machined part on the positioning assembly, so as to control the next action of the manipulator.

Further, in this embodiment, a discharge device 7 with a belt is provided for transporting the finished, acceptable parts.

s1, manually placing the part to be machined on a feeding device, and conveying the part to be machined by the feeding device to a first positioning groove 2203 on a first positioning block 2202 of a positioning rack 2200;

s2, after the part to be machined is transferred to the designated position, the robot arm 3200 starts to work, and the clamp 3300 on the robot arm 3200 grabs the part to be machined;

s3, the mechanical arm 3200 is used for grabbing the part to be machined onto a chuck of the numerically controlled lathe 1, and the chuck clamps the part to be machined;

s4, the numerical control machine tool 1 starts to work, and parts to be processed are processed;

s5, stopping the numerical control machine tool 1, finishing machining, grabbing the machined part on the chuck by the mechanical arm 3200, loosening the chuck, driving the machined part to move to the part reversing tool by the mechanical arm 3200, and replacing the direction of the machined part clamped by the mechanical arm 3200 by using the part reversing tool;

s6, repeating the steps S3-S4;

s7, the robot arm 3200 controls one of the jigs 3300 to grab and wait for a part to be processed in the above step S1;

s8, after the parts to be machined in the previous batch are machined in the nc machine tool 1, the robot arm 3200 controls the other clamp 3300 to grasp the machined parts on the chuck of the nc machine tool 1, and moves the machined parts away from the chuck, and then the robot arm 3200 places the parts to be machined, which are grasped by the one clamp 3300 in the step S7, on the chuck of the nc machine tool 1;

s9, the mechanical arm 3200 controls another jig 3300 to place the machined part on the discharging device 7;

s10, repeating the steps S1-S9.

Example two: as shown in fig. 7 and 8, the remaining components are the same as those of the first embodiment, except that: the feeding device 2 includes:

a roller is arranged at the bottom of the workbench 2801, and the position of the workbench 2801 can be moved;

the number of the limiting strips 2802 is at least two, the limiting strips 2802 are arranged on the workbench 2801 oppositely and are connected with the workbench 2801 in a rotating mode, and the upper surfaces of the limiting strips 2802 are inclined surfaces;

the supporting block 2803 is used for supporting the placement of a part to be processed, and the supporting block 2803 is arranged on the limiting strip 2802;

a limiting plate 2804, wherein the limiting plate 2804 is arranged on the limiting strip 2802, a limiting hole 2805 for placing a part to be processed is arranged on the limiting plate 2804, a supporting column 2806 is arranged between the limiting plate 2804 and the supporting block 2803, so that a gap is formed between the limiting plate 2804 and the supporting block 2803, the part to be processed is placed in the limiting hole 2805, and the limiting plate 2804 is connected with the supporting plate 2803 through a knob;

the positioning unit comprises four upright posts 2900 surrounding the bottom of the workbench 2801, two upright posts 2900 close to one side of the mechanical arm 3200 are respectively provided with a guide plate 2901, the guide plates 2901 are respectively arranged on one side of the upright posts 2900 far away from the workbench, one side of each upright post 2900 facing the workbench is provided with a buffer post 2902, the other two upright posts 2900 far away from one side of the mechanical arm 3200 are provided with clamping plates 2902 facing the workbench 2801, the clamping plates 2902 abut against the workbench 2801, the lower surface of each clamping plate 2902 is provided with a convex block, the upper surface of each upright post 2900 is provided with a sliding groove 2904, each convex block can slide in the corresponding sliding groove 2904, and a bolt penetrates through each clamping plate 2902 and then is fixedly connected with the upright posts 2900 in an inserting mode.

Specifically, the processing line in this embodiment is a top hat part processing line, a stepping motor is arranged in the worktable 2801, and the stepping motor drives the limit strip 2802 to rotate; a sensor is arranged on the workbench 2801 to monitor whether the limiting plate 2804 rotates in place, and a switch door is arranged on one side of the workbench 2801 away from the mechanical arm to facilitate discharging to the workbench 2801.

In this embodiment, the supporting block 2803 and the limiting plate 2804 on the side close to the mechanical arm 3200 are inclined downward by the limiting strip 2803 with an inclined surface, so that the mechanical arm 3200 can drive the clamp 3300 to grasp a part to be processed in the feeding device 2 conveniently; when the parts to be machined on the limiting plate 2804 close to one side of the mechanical arm 3200 are machined completely, the stepping motor drives the supporting block 2803 to rotate by 180 degrees, the mechanical arm 3200 starts to clamp the parts to be machined placed on the limiting plate 2804 on the other side, and after the mechanical arm 3200 clamps the shaft parts to be machined, the shaft parts to be machined are placed back into the limiting holes 2805 where the shaft parts to be machined originally were placed.

Further preferably, as shown in fig. 9, the clamp 3300 includes a mounting seat 3600 and three clamping fingers 3601, the mounting seat 3600 is fixed to the connecting flange 3403, the clamping fingers 3601 and the mounting seat 3600 can slide relatively, so that the three clamping fingers 3601 can be clamped and released relatively, a pop-up plate 3604 is provided on the mounting seat 3600, a plurality of pop-up pins 3606 are provided at intervals on one surface of the pop-up plate 3604 facing the mounting seat 3600, an elastic member is provided between the pop-up pins 3606 and the mounting seat 3600, since there may be errors when the clamp 3300 grasps the part to be machined each time, a deviation may occur when the part to be machined is machined by a lathe, and by providing the pop-up plate 3604, the part to be machined can be pushed to a designated position for lathe machining, so as to reduce a positioning error.

Specifically, the elastic member is a spring, a spring groove (not shown in the figure) is formed in the mounting seat 3600, one end of the ejector pin 3606 is fixed to the ejector plate 3604, the other end of the ejector pin 3606 is arranged in the spring groove and can slide in the spring groove, a spring plate 3608 is arranged on the spring groove, and two ends of the spring are connected with the ejector pin 3606 and the spring plate 3608 respectively.

The working process of clamping the component by using the clamp 3300 is as follows: the clamping fingers 3601 are opened, the clamp 3300 is close to the part to be processed, the part to be processed extrudes the ejection plate 3604, the ejection plate 3604 drives the ejection pins 3606 to move, the spring is stretched at the moment, then the clamping fingers 3601 contract, the clamped part moves towards the processing machine tool, the clamping fingers 3601 reach the designated processing position, and meanwhile, the stretched spring starts to reset to drive the ejection plate 3604 to eject the part to be processed to the processing position.

Preferably, as shown in fig. 10 and 11, the positioning assembly includes a first support plate 4400 disposed on the slider 4201, a first positioning unit is disposed on the first support plate 4400,

first positioning unit is including setting up adjustment disc 4402 on first backup pad 4400 and being used for three locating shaft 4401 of positioning processing part, be provided with the adjustment groove 4403 that three bar forms are the same around the central point interval of adjustment disc 4402 on the adjustment disc 4402, and be provided with roating seat 4404 between adjustment disc 4402 and the first backup pad 4400, be provided with three first spacing grooves around the central point of roating seat 4404 on roating seat 4404, three vertical first spacing grooves that upwards pass of locating shaft 4401, adjustment groove 4403, and the bottom interval of every locating shaft 4403 is provided with two first stopper 4405, between roating seat 4404 and the first backup pad 4400, all be provided with the clearance between adjustment disc 4402 and the roating seat 4404, two first stopper 4405 set up respectively in the clearance that corresponds, the centre that set screw passed adjustment disc 4402 is spiro union mutually with roating seat 4404, lock adjustment disc 4402.

In the above embodiment, the adjusting disk 4402 is provided with the cover plate 4406, three second limiting grooves 4407 are arranged on the cover plate 4406 at intervals around the center of the cover plate 4406, the positioning shaft 4401 vertically and upwardly penetrates through the second limiting grooves 4407, and the cover plate 4406 is provided to support the machined part, so that the machined part is prevented from being directly contacted with the adjusting disk 4402 to damage the adjusting disk 4402.

In the embodiment, the first and second limiting grooves 4407 have the same shape and distribution.

The process of adjusting the three positioning shafts 4401 by using the adjusting disc 4402 is as follows: screwing off the set screw to enable the adjusting disc 4402 to rotate, and then rotating the adjusting disc 4402 along the extending direction of the adjusting groove 4403 to enable the intervals among the three positioning shafts 4401 to be reduced; the counter rotation adjustment disk 4402 can enlarge the gap between the three positioning shafts 4401, and adjust the gap between the three positioning shafts 4401 according to the inner diameter size of the machined part, so that the positioning assembly can be suitable for the machined parts with different inner diameters.

In all the above embodiments, the first support plate 4400 and the second support plate 4500 may be integrally disposed, so that the tool for delivery and sampling inspection can be applied to delivery of different parts, and is more economical; two oil pressure buffers 4600 are oppositely arranged on the feeding rack 4100 along the length direction, play a role in buffering the positioning assembly to a certain extent and prevent the slide block 4201 from being fast in moving and damaging the device; the second slide rail 4202 is disposed along the length direction of the feeder frame 4100, and the positioning assembly is slidably engaged with the second slide rail 4202, so that the second slide rail 4202 can provide a guiding function for the movement of the positioning assembly and can also provide a certain supporting function for the positioning assembly.

In all the above embodiments, as shown in fig. 12 and 13, an automatic production line for cnc machining further includes:

the fixture quick-change tooling 6 comprises a quick-change bracket 6100, a support plate 6101 is relatively arranged on the quick-change bracket 6100, a support groove 6102 for supporting a quick-change lower die 3403 is arranged on the support plate 6101, a quick-change support plate 6103 is arranged between the quick-change upper die 3401 and the connecting flange 3403, a positioning hole 6104 is relatively arranged on the quick-change support plate 6103, a positioning column 6105 is relatively arranged on the support plate 6101, when the quick-change lower die 3402 is placed on the support plate 6101, the positioning column 6105 penetrates through the positioning hole 6104, and the support plate 6101 supports the quick-change support plate 6103;

the part reversing tool 5 comprises a reversing support 5100, a fixed seat 5101 is arranged on the reversing support 5100, a cavity for placing a part to be machined is defined by the fixed seat 5101 and the reversing support 5100, an upper pressure plate 5102 and a lower support plate 5103 for clamping the machined part are arranged in the cavity, a second pushing piece 5200 is arranged on the fixed seat 5101, and the second pushing piece 5200 can push the upper pressure plate 5102 to move towards the lower support plate 5103 until the upper pressure plate 5102 and the lower support plate 5103 clamp the machined part.

Specifically, the second pushing member 5200 is a cylinder, a cylinder seat of the cylinder is disposed on the fixing base 5101, a cylinder shaft of the cylinder passes through the fixing base 5101 downwards to be fixed with the upper pressing plate 5102, and the upper pressing plate 5102 and the lower pressing plate 5103 are both provided with V-shaped grooves, so as to clamp the processing.

In the application, different clamps 3300 can be placed by arranging the clamp quick-change tool 6, so that quick change among different clamps 3300 is realized; can carry out the switching-over to the processing part through being provided with part switching-over frock 5, to top cap class part, because its length is shorter, only lean on the rotation of arm 3300 can't press from both sides its direction of changing on the hydraulic chuck of lathe, so accessible top board 5102 and lower supporting plate 5103 press from both sides the processing part tightly, later the arm 3200 is commuted again, another direction of processing part.

In this application, still be provided with hydraulic chuck self-holding device (not shown in the figure), hydraulic frock blows bits device (not shown in the figure), hydraulic chuck self-holding device, hydraulic frock blows bits device and installs in digit control machine tool 1.

A machining method of an automatic production line for machining of a numerical control machine tool comprises the following steps:

s1, manually placing the part to be processed into the limiting hole 2805 on the limiting plate 2804 of the workbench 2801,

s2, after the part to be machined is rotated by the workbench and is transmitted to a designated position, the mechanical arm 3200 starts to work, and the clamp 3300 on the mechanical arm 3200 grabs the part to be machined;

s6, repeating the steps S3-S4;

s7, the robot arm 3200 controls one of the jigs 3300 to grab a part to be machined in the above step S1 for waiting;

s9, the mechanical arm 3200 controls another clamp 3300 to place the machined part into a vacant limiting hole 2805 in a limiting plate 2804;

s10, repeating the steps S1-S9.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a digit control machine tool machining automation line which characterized in that includes:

a numerical control machine tool;

2. The automatic production line for numerical control machine tool machining according to claim 1, wherein the feeding device comprises:

3. The automatic production line for numerical control machine tool machining according to claim 1, wherein the feeding device comprises:

the bottom of the workbench is provided with a roller;

the supporting block is used for supporting the placement of the part to be processed and is arranged on the limiting strip;

the positioning unit, the positioning unit is including centering on four stands of the bottom of workstation are close to all be provided with the deflector on two stands of one side of arm, the deflector sets up respectively keep away from one side of workstation on the stand, just the stand is facing to the one side of workstation is provided with the buffering post, keeps away from be provided with the screens board towards the workstation on two other stands of arm one side, just the screens board offsets with the workstation, the lower surface of screens board is provided with the lug, the upper surface of stand is provided with the spout, the lug can slide in the spout, the bolt passes behind the screens board and pegs graft fixedly mutually with the stand.

4. The automatic production line for numerical control machine tool machining according to claim 1, wherein the fixture comprises a first connecting block arranged on the connecting flange, two bases are oppositely arranged on the first connecting block, clamping blocks are arranged on the two bases, clamping grooves for grabbing shaft parts are arranged on the clamping blocks, the bases are in sliding fit with the first connecting block, so that the two clamping blocks can be clamped and loosened relatively, a connecting plate is arranged on the first connecting block, a sliding block is fixed on one side of the connecting plate facing the connecting flange, a sliding rail is fixed on the connecting flange, the sliding rail is in sliding fit with the sliding block, fixed blocks are arranged on two sides of the connecting plate, two connecting seats are oppositely arranged on the connecting flange, mounting grooves are arranged on the connecting seats, the fixed blocks are arranged in the mounting grooves, and the fixed blocks can slide in the mounting grooves, an elastic connecting piece is arranged in the mounting groove, one end of the elastic connecting piece is connected with the fixing block, and the other end of the elastic connecting piece is connected with the connecting seat.

5. The automatic production line for numerical control machine tool machining according to claim 1, wherein the clamp includes a mounting seat and three clamping fingers, the mounting seat is fixed to the connecting flange, the clamping fingers and the mounting seat can slide relative to each other, so that the three clamping fingers can be clamped and loosened relative to each other, an ejection plate is disposed on the mounting seat, a plurality of ejection pins are disposed on one surface of the ejection plate facing the mounting seat at intervals, and an elastic member is disposed between the ejection pins and the mounting seat.

6. The automatic production line for numerical control machine tool machining according to claim 1, further comprising a selective inspection feeding tool, wherein the selective inspection feeding tool comprises:

a feeding frame;

7. The automatic production line of claim 6, wherein the positioning assembly comprises a first support plate disposed on the sliding block, a first positioning unit is disposed on the first support plate, the first positioning unit comprises an adjusting disc disposed on the first support plate and three positioning shafts for positioning the workpiece to be machined, three adjusting grooves having the same shape are disposed on the adjusting disc at intervals around a center position of the adjusting disc, a rotating base is disposed between the adjusting disc and the first support plate, three first limiting grooves are disposed on the rotating base at intervals around a center position of the rotating base, the three positioning shafts vertically penetrate the first limiting grooves and the adjusting grooves, two first limiting blocks are disposed at intervals at a bottom of each positioning shaft, and a gap between the rotating base and the first support plate, Gaps are formed between the adjusting disc and the rotating seat, the two first limiting blocks are arranged in the corresponding gaps respectively, and a set screw penetrates through the center of the adjusting disc to be in threaded connection with the rotating seat, so that the adjusting disc is locked.

8. The automatic production line for numerical control machine tool machining according to claim 6, wherein the positioning assembly comprises a second support plate disposed on the slide block, a second positioning unit is disposed on the second support plate, the second positioning unit comprises a fixed plate disposed on the second support plate, at least two second positioning blocks are disposed on the fixed plate, each second positioning block is provided with a second positioning groove, two second limiting blocks are oppositely disposed along a length direction of the fixed plate, a limiting groove is disposed on the second support plate, second connecting blocks are disposed at bottoms of the second positioning blocks and the limiting plate, and the second connecting blocks are disposed in the limiting grooves and can be in sliding fit with the limiting grooves.

9. The automatic production line for numerical control machine tool machining according to claim 8 or 7, further comprising:

10. A machining method of an automatic production line for numerical control machine machining according to claim 9, characterized by comprising the steps of:

s1, manually placing the part to be machined on a feeding device, and conveying the part to be machined by the feeding device to a mechanical arm grabbing position;

s6, repeating the steps S3-S4;

s10, repeating the steps S1-S9.