CN208854101U - A kind of automatically press-fitting and extrusion processing device - Google Patents

A kind of automatically press-fitting and extrusion processing device Download PDF

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Publication number
CN208854101U
CN208854101U CN201821313441.7U CN201821313441U CN208854101U CN 208854101 U CN208854101 U CN 208854101U CN 201821313441 U CN201821313441 U CN 201821313441U CN 208854101 U CN208854101 U CN 208854101U
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China
Prior art keywords
press
fitting
feeding
burnishing
workpiece
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CN201821313441.7U
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Chinese (zh)
Inventor
侯连华
周晓亮
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XINGLI COMPUTER PRODUCTS CO Ltd ZHUHAI
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XINGLI COMPUTER PRODUCTS CO Ltd ZHUHAI
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Abstract

The utility model discloses a kind of full-automatic press-fitting and extrusion processing devices, it is connected respectively with the discharge port of feeding mechanism including at least two feeding mechanisms, press-fitting mechanism, burnishing-in mechanism, transfer robot arm and feeding mechanical hand, the press-fitting mechanism at least provided with two charging ports.The utility model passes through feeding mechanism, the cooperation of press-fitting mechanism, burnishing-in mechanism, transfer robot arm and feeding mechanical hand, the manufacturing procedure of the charging of standby workpiece, press-fitting and burnishing-in is realized into full-automation, effectively improves the processing efficiency and processing quality of workpiece to be added.

Description

A kind of automatically press-fitting and extrusion processing device
Technical field
The utility model relates to automated production make-up machinery field, especially a kind of full-automatic press-fitting and extrusion processing device.
Background technique
Currently, after bracket inner hole is loaded onto guide sleeve up and down and is respectively by manually tool being used to load onto guide sleeve to bracket, Again by manually tool being used to be modified the diameter of upper and lower guide sleeve, the diameter for making to cover two guide sleeves up and down on bracket is protected Hold consistent, burnishing-in is by manually being operated in the guide sleeve assembling and dowel hole due to bracket, therefore its working efficiency is low, simultaneously The qualification rate of product is lower, is easy to damage inner hole when the position of guide sleeve is easy to produce offset and burnishing operation.
Summary of the invention
In order to solve the above technical problems, the utility model provides a kind of full-automatic press-fitting and extrusion processing device, will be to Charging, press-fitting and the manufacturing procedure realization of burnishing-in of machine workpiece are full-automatic.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of full-automatic press-fitting and extrusion processing device, Including at least two feeding mechanisms, press-fitting mechanism, burnishing-in mechanism, transfer robot arm and feeding mechanical hand, the press-fitting mechanism At least two charging ports are provided with, each described charging port is connected with the discharge port of a feeding mechanism respectively;
The feeding mechanism is used to input workpiece to be added in press-fitting mechanism;
The press-fitting mechanism be used to carry out at least two workpiece to be added press-fitting assembling and transferring out be completed it is to be added Workpiece;
The burnishing-in mechanism is used to squeeze the inner hole for the workpiece to be added that press-fitting is completed;
The transfer robot arm, which is used to the workpiece to be added for being press-fitted mechanism output being transferred to burnishing-in mechanism, carries out inner hole extruding;
The feeding mechanical hand is used to transfer the workpiece to be added that burnishing-in is completed in burnishing-in mechanism.
Further, there are three the feeding mechanism settings, respectively structure the first feeding mechanism all the same, second are fed Mechanism and third feeding mechanism, first feeding mechanism include vibrating disk, the feed rail being connect with vibrating disk discharge port with And it is set to the voltage stabilization plate above feed rail.
Further, the press-fitting mechanism further includes having above for concentrating the workbench of workpiece to be added, being set to workbench For the press-fitting cylinder of punching press workpiece to be added, the feeding port that is connect by track with workbench and for will be complete on workbench At the feeding cylinder released toward feeding port of workpiece to be added.
Further, there are three charging port settings, respectively the first charging port, the second charging port and third into Expect port, first charging port, the second charging port and third charging port pass through respectively track connect with workbench and It is separately positioned on different level parallel to the ground, first charging port, the second charging port and third feed end Mouth is separately provided for the pusher cylinder for pushing the workpiece to be added in charging port toward workbench.
Further, the burnishing-in mechanism includes positioning table, the burnishing-in knife being set to above positioning table, driving burnishing-in knife rotation Rotating electric machine and driving rotating electric machine lifting the first lifting motor.
Further, positioning column, location hole, the pressure plate being arranged in front of spacer pin and driving are provided on the positioning table The rotary cylinder of pressure plate lifting.
Further, first lifting motor is set to the top of supporting table, and the front end of the supporting table is vertically arranged with First screw rod and the first fixed plate connecting with the first wire rod thread, the rotating electric machine are fixed on the first fixed front edge of board, First lifting motor drives the rotation of the first screw rod, and the first fixed plate is made to move up and down to drive rotation along the first screw rod Motor moves up and down.
Further, the two sides that the supporting table is located at the first screw rod are additionally provided with the first upright guide rail, and described first is fixed The two sides of plate are slidably connected with the first upright guide rail.
Further, the transfer robot arm and the feeding mechanical hand are respectively arranged at the both ends of rodless cylinder, by no bar Cylinder drives transfer robot arm and feeding mechanical hand to move horizontally simultaneously.
Further, the both ends of the rodless cylinder are respectively arranged with linear guide, the transfer robot arm and the feeding Manipulator passes through the first fixed station respectively and the second fixed station is fixed on rodless cylinder, and first fixed station and second is fixed The bottom end of platform is slidably connected with linear guide.
The beneficial effects of the utility model are: by feeding mechanism, press-fitting mechanism, burnishing-in mechanism, transfer robot arm and sending The manufacturing procedure of the charging of standby workpiece, press-fitting and burnishing-in is realized full-automation, effectively improved by the cooperation for expecting manipulator The processing efficiency and processing quality of workpiece to be added.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural schematic diagram of preferred embodiment of the utility model;
Fig. 2 is the structural schematic diagram of the press-fitting mechanism of the utility model;
Fig. 3 is the structural schematic diagram of another angle of press-fitting mechanism of the utility model;
Fig. 4 is the structural schematic diagram of the burnishing-in mechanism of the utility model;
Fig. 5 is the main view of the burnishing-in knife of the utility model;
Fig. 6 is the left view of the burnishing-in knife of the utility model;
Fig. 7 is the transfer robot arm of the utility model and the mounting structure schematic diagram of feeding mechanical hand.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below with reference to embodiment and The technical effect of the design of the utility model, specific structure and generation is clearly and completely described in attached drawing, with sufficiently geographical Solve the purpose of this utility model, feature and effect.Obviously, described embodiment is that a part of the utility model is implemented Example, rather than whole embodiments, those skilled in the art's other realities obtained without creative efforts Example is applied, the range of the utility model protection is belonged to.
Referring to Fig.1, be a kind of preferably embodiment, a kind of full-automatic press-fitting and extrusion processing device, including at least two into Material mechanism 1, press-fitting mechanism 2, burnishing-in mechanism 3, transfer robot arm 4 and feeding mechanical hand 5, the press-fitting mechanism 2 are at least arranged There are two charging port 21, each described charging port 21 is connected with the discharge port of a feeding mechanism 1 respectively;
The feeding mechanism 1 is used to input workpiece to be added in press-fitting mechanism 2;
The press-fitting mechanism 2 be used to carry out at least two workpiece to be added press-fitting assembling and transferring out be completed it is to be added Workpiece;
The burnishing-in mechanism 3 is used to squeeze the inner hole for the workpiece to be added that press-fitting is completed;
The transfer robot arm 4 is transferred to burnishing-in mechanism 3 and carries out inner hole for will be press-fitted the workpiece to be added that exports of mechanism 2 and squeezes Pressure;
The feeding mechanical hand 5 is used to transfer the workpiece to be added that burnishing-in is completed in burnishing-in mechanism 3.
Referring to Fig.1, there are three the settings of feeding mechanism 1 described in the present embodiment, respectively structure the first charging all the same Mechanism 11, the second feeding mechanism 12 and third feeding mechanism 13, first feeding mechanism 11 include vibrating disk 111 and vibration The feed rail 112 of 111 discharge port of disk connection and the voltage stabilization plate 113 for being set to 112 top of feed rail, pass through vibrating disk 111 vibration so as in turn export workpiece to be added toward feed rail 112, using voltage stabilization plate 113 can keep workpiece to be added into Stability during material, avoids shaking the excessive position for leading to workpiece to be added and deviates, and influences subsequent processing effect.
Referring to Fig. 2 and Fig. 3, the press-fitting mechanism 2 further includes having for concentrating the workbench 22 of workpiece to be added, being set to work Make the feeding port 24 being connect for the press-fitting cylinder 23 of punching press workpiece to be added, by track with workbench 22 above platform 22 and Feeding cylinder 25 for releasing the workpiece to be added completed on workbench 22 toward feeding port 24.
While in order to cooperate the first feeding mechanism 11, the second feeding mechanism 12 and third feeding mechanism 13, the charging There are three the settings of port 21, respectively the first charging port 211, the second charging port 212 and third charging port 213, and first Charging port 211 is connect with the discharge port of the feed rail 112 of the first feeding mechanism 11, the second charging port 212 and second into Expect the discharge port connection of the feed rail 112 of mechanism 12, the feed rail of third charging port 213 and third feeding mechanism 13 112 discharge port connection.First charging port 211, the second charging port 212 and third charging port 213 are also led to respectively Track is crossed to connect and be separately positioned on different level parallel to the ground with workbench 22, first charging port 211, Second charging port 212 and third charging port 213 are separately provided for the past work of workpiece to be added in charging port 21 The pusher cylinder 26 that platform 22 pushes.
Workpiece to be added is mainly bracket and two guide sleeves in this example, it is therefore an objective to by two guide sleeves respectively from the through-hole of bracket Upper and lower ends indentation, squeezes guide sleeve inner hole after completing press-fitting, therefore the first feeding mechanism 11 is led for conveying one of them Set, the second feeding mechanism 12 are used for transfer gantry, and third feeding mechanism 13 is for conveying another guide sleeve, due to being to lead two Set is pressed into from the through-hole upper and lower ends of bracket simultaneously respectively, therefore the second feed rail 112 need to be set to 112 He of the first feed rail The middle position of the vertical direction of third feed rail 112, while the first charging port 211, the second charging port 212 and third Charging port 213 needs successively connect with workbench 22 from the bottom up, when the first charging port 211, the second charging port 212 and the When three charging ports 213 are collected into corresponding workpiece to be added, corresponding pusher cylinder 26 just starts, and keeps respective workpiece to be added past 22 center push of workbench, after workbench 22 gathers guide sleeve and bracket from top to bottom, press-fitting cylinder 23 just starts, to workbench Workpiece to be added on 22 carries out punching press, in the through-hole for making two guide sleeve indentation brackets, completes the workpiece to be added of press-fitting sum just by sending Material cylinder 25 pushes on the feeding port 24 of press-fitting mechanism 2, is shifted convenient for transfer robot arm 4, in order to preferably complete The driving end of press-fitting process, the press-fitting cylinder 23 is provided with briquetting, while each pusher cylinder 26 and feeding cylinder 25 Driving end is also equipped with expeller, for pushing the workpiece to be added on respectively corresponding charging port 21 or workbench 22.
Referring to Fig. 4, in order to realize the process accurately squeezed guide sleeve, the burnishing-in mechanism 3 include positioning table 30, It is set to 32 liters of rotating electric machine of the burnishing-in knife 31 of 30 top of positioning table, the rotating electric machine 32 that driving burnishing-in knife 31 rotates and driving First lifting motor 33 of drop.
Be provided on the positioning table 30 positioning column 301, location hole 302, setting spacer pin in front of pressure plate 303 and The rotary cylinder 304 for driving pressure plate 303 to go up and down.
First lifting motor 33 is set to the top of supporting table 34, and the front end of the supporting table 34 is vertically arranged with One screw rod 35 and the first fixed plate 36 being threadedly coupled with the first screw rod 35, the rotating electric machine 32 are fixed on the first fixed plate 36 front ends, first lifting motor 33 drive the rotation of the first screw rod 35, make the first fixed plate 36 along the first about 35 screw rod Movement is to drive rotating electric machine 32 to move up and down.
After the bracket for having pressed guide sleeve is placed on positioning table 30 by transfer robot arm 4, location hole 302 can be accurately positioned The position of bracket, positioning column 301 can prevent in process, the mobile situation of bracket appearance, in the present embodiment, place branch After frame, while rotary cylinder 304 starts, and pressure plate 303 is declined, is fixed to bracket;After fixing bracket, just open Dynamic first lifting motor 33 and rotating electric machine 32 drive the first screw rod 35 to rotate using the first lifting motor 33, drive first to consolidate Fixed board 36 moves up and down, and so as to make burnishing-in knife 31 repeat to go up and down, drives burnishing-in knife 31 to realize that high speed is revolved by rotating electric machine 32 Turn, using more than 31 extruding guide sleeve bore areas of burnishing-in knife, the bore area for two guide sleeves for being set in bracket or more can be applied Add certain Cold Extrusion Force, metal material is made to generate plastic deformation, reach whole smooth inner hole and reaches size requirement.
In order to which held stationary, the two sides that the supporting table 34 is located at the first screw rod 35 are also set burnishing-in knife 31 in lifting process It is equipped with the first upright guide rail 37, the two sides of first fixed plate 36 are slidably connected with the first upright guide rail 37, make first to fix Plate 36 can slide on the first upright guide rail 37, the processing of stability and fixed burnishing-in knife 31 that burnishing-in knife 31 can be kept to go up and down Direction.
Referring to figure 5 and figure 6, in order to realize preferably burnishing-in and whole light effect, the burnishing-in knife 31 is cylinder, described to squeeze The shaft of light-knife 31 equably offers the cutting edge 311 parallel with shaft, and in this example, there are three the settings of cutting edge 311, with The interval of 120 degree of angles is evenly distributed on the shaft of burnishing-in knife 31, and 31 front and back end of burnishing-in knife is provided with chamfering 312, together Shi Suoshu burnishing-in knife 31 is fixed on the driving end of rotating electric machine 32 by collet, staff can be facilitated to burnishing-in using collet Knife 31 is replaced.
Since in extrusion process, metal debris can be generated, in order to avoid metal debris has an impact secondary operation, institute The side for stating rotating electric machine 32 is additionally provided with the first gas nozzle 38, and first gas nozzle 38 is connect by pipeline with the first cylinder, It after squeezing each time, is blown using the first gas nozzle 38 to burnishing-in knife 31, blows away metal debris on its surface, prevent next time from adding Work process, metal debris generate damage to guide sleeve inner hole.
In order to improve the processing effect to workpiece inner hole, the side of the positioning table 30 is additionally provided with for giving burnishing-in knife 31 add the nozzle 39 of lubricating oil, and the nozzle 39 is connect with lubricating can by pipeline, can be prevented using lubricating oil because of metal material Dry friction between material causes to damage to burnishing-in knife 31 and guide sleeve inner wall, while may also function as the effect of cleaning and cooling, will before Time processing generates metal debris and is purged and cools down to burnishing-in knife 31, in order to preferably add lubricating oil, can spray The setting of 39 front end of mouth is covered with paint or varnish, and is covered with paint or varnish and be arranged on telescopic cylinder, and when burnishing-in knife 31, which drops to, covers with paint or varnish front end, telescopic cylinder is opened It is dynamic, make to cover with paint or varnish and move up and down, uniform scrubbing brush oil is carried out to burnishing-in knife 31 using covering with paint or varnish, after completion oils, burnishing-in knife 31 is squeezed Press process.
In order to can in real time and reliably make-up oil, 34 side of supporting table be arranged for there is rack 341, described Lubricating can is placed on rack 341, while the position of rack 341341 need to be higher than the locating plane of nozzle 39, utilize Gravitional force more preferably and equably can be covered with paint or varnish make-up oil.
In order to improve the degree of automation, it is additionally provided with fiber sensor before the positioning table 30, for incuding positioning table 30 On whether need workpiece, using fiber sensor, can incude on platform whether to have and place workpiece to be added, can avoid because not there is placement Workpiece to be added and error starting burnishing-in mechanism 3 avoid generating dangerous.
Reference Fig. 7, the transfer robot arm 4 and the feeding mechanical hand 5 are respectively arranged at the both ends of rodless cylinder 6, by Rodless cylinder 6 drives transfer robot arm 4 and feeding mechanical hand 5 to move horizontally simultaneously, then to be processed in transfer press-fitting mechanism 2 When part, the workpiece to be added that burnishing-in is completed can be shifted using feeding mechanical hand 5 simultaneously.
The both ends of the rodless cylinder 6 are respectively arranged with linear guide 61, the transfer robot arm 4 and the feeding mechanical Hand 5 is fixed on rodless cylinder 6 by the first fixed station 41 and the second fixed station 42 respectively, first fixed station 41 and second The bottom end of fixed station 42 is slidably connected with linear guide 61.
Since the feeding port 24 of press-fitting mechanism 2 and the positioning table 30 of burnishing-in mechanism 3 are in different height in the present embodiment Horizontal plane on, so the top of the second fixed station 42 is additionally provided with the second lifting motor 42, is vertically arranged at the second fixed station The second screw rod 43 on 42 and the second fixed plate 44 being threadedly coupled with the second screw rod 43, the transfer robot arm 4 are fixed on In second fixed plate 44, second lifting motor 42 makes the second fixed plate 44 can be along the by driving the second screw rod 43 rotation Two screw rods 43 move up and down, so that mobilization manipulator 4 moves up and down.
In the present embodiment, the transfer robot arm 4 and feeding mechanical hand 5 are all made of pneumatic clamper and carry out clamping workpiece to be added, gas Pawl is driven by corresponding pneumatic clamper cylinder respectively, to complete the movement for clamping and unclamping.
In addition, the side of burnishing-in mechanism 3 be additionally provided with cleaning mechanism 7 for removing the scrap on workpiece to be added and For collecting the finished product box of finished product, the cleaning mechanism 7 is used to remove the scrap on workpiece to be added, and cleaning mechanism 7 includes second Gas nozzle, the second cylinder being connect by pipeline with the second gas nozzle and the copper scale case being set to below the second gas nozzle.It will complete to squeeze The workpiece to be added of light process is transferred under cleaning mechanism 7 by feeding mechanical hand 5 is purged copper scale, completes after removing, just will be complete At finished product be put into finished product box and be collected.
The above, the only better embodiment of the utility model, but the utility model is not limited to above-mentioned reality Example is applied, as long as its technical effect for reaching the utility model with any same or similar means, all should belong to the utility model Protection scope.

Claims (10)

1. a kind of full-automatic press-fitting and extrusion processing device, it is characterised in that: including at least two feeding mechanisms (1), press-fitting mechanism (2), burnishing-in mechanism (3), transfer robot arm (4) and feeding mechanical hand (5), the press-fitting mechanism (2) are provided at least two Charging port (21), each described charging port (21) are connected with the discharge port of a feeding mechanism (1) respectively;
The feeding mechanism (1) is used to input workpiece to be added in press-fitting mechanism (2);
The press-fitting mechanism (2) be used to carry out at least two workpiece to be added press-fitting assembling and transferring out be completed it is to be processed Part;
The burnishing-in mechanism (3) is used to squeeze the inner hole for the workpiece to be added that press-fitting is completed;
The transfer robot arm (4), which is used to the workpiece to be added for being press-fitted mechanism (2) output being transferred to burnishing-in mechanism (3), carries out inner hole It squeezes;
The feeding mechanical hand (5) is used to transfer the workpiece to be added that burnishing-in is completed on burnishing-in mechanism (3).
2. full-automatic press-fitting according to claim 1 and extrusion processing device, it is characterised in that: feeding mechanism (1) setting There are three, respectively structure the first feeding mechanism (11) all the same, the second feeding mechanism (12) and third feeding mechanism (13), First feeding mechanism (11) include vibrating disk (111), the feed rail (112) being connect with vibrating disk (111) discharge port with And it is set to the voltage stabilization plate (113) above feed rail (112).
3. full-automatic press-fitting according to claim 1 and extrusion processing device, it is characterised in that: the press-fitting mechanism (2) is also wrapped Press-fitting gas above including the workbench (22) for concentrating workpiece to be added, being set to workbench (22) for punching press workpiece to be added Cylinder (23) passes through feeding port (24) and be used to complete on workbench (22) to be added that track is connect with workbench (22) The feeding cylinder (25) that workpiece is released toward feeding port (24).
4. full-automatic press-fitting according to claim 3 and extrusion processing device, it is characterised in that: charging port (21) setting There are three, respectively the first charging port (211), the second charging port (212) and third charging port (213), described first Charging port (211), the second charging port (212) and third charging port (213) are connected by track and workbench (22) respectively It connects and is separately positioned on different level parallel to the ground, first charging port (211), the second charging port (212) it is separately provided for the workpiece to be added on charging port (21) with third charging port (213) toward workbench (22) The pusher cylinder (26) of push.
5. full-automatic press-fitting according to claim 1 and extrusion processing device, it is characterised in that: the burnishing-in mechanism (3) includes The rotating electric machine (32) that positioning table (30), the burnishing-in knife (31) being set to above positioning table (30), driving burnishing-in knife (31) rotate And the first lifting motor (33) of driving rotating electric machine (32) lifting.
6. full-automatic press-fitting according to claim 5 and extrusion processing device, it is characterised in that: be arranged on the positioning table (30) There are positioning column (301), location hole (302), the pressure plate (303) being arranged in front of spacer pin and driving pressure plate (303) lifting Rotary cylinder (304).
7. full-automatic press-fitting according to claim 5 and extrusion processing device, it is characterised in that: first lifting motor (33) Be set to the top of supporting table (34), the front end of the supporting table (34) be vertically arranged with the first screw rod (35) and with first The first fixed plate (36) that bar (35) is threadedly coupled, the rotating electric machine (32) is fixed on the first fixed plate (36) front end, described First lifting motor (33) drives the first screw rod (35) rotation, moves up and down the first fixed plate (36) along the first screw rod (35) To drive rotating electric machine (32) to move up and down.
8. full-automatic press-fitting according to claim 7 and extrusion processing device, it is characterised in that: the supporting table (34) is located at the The two sides of one screw rod (35) are additionally provided with the first upright guide rail (37), and the two sides of first fixed plate (36) are led vertically with first Rail (37) is slidably connected.
9. full-automatic press-fitting according to claim 1 and extrusion processing device, it is characterised in that: the transfer robot arm (4) and The feeding mechanical hand (5) is respectively arranged at the both ends of rodless cylinder (6), drives transfer robot arm simultaneously by rodless cylinder (6) (4) it is moved horizontally with feeding mechanical hand (5).
10. full-automatic press-fitting according to claim 9 and extrusion processing device, it is characterised in that: the two of the rodless cylinder (6) End is respectively arranged with linear guide (61), and the transfer robot arm (4) and the feeding mechanical hand (5) are fixed by first respectively Platform (41) and the second fixed station (42) are fixed on rodless cylinder (6), first fixed station (41) and the second fixed station (42) Bottom end be slidably connected with linear guide (61).
CN201821313441.7U 2018-08-15 2018-08-15 A kind of automatically press-fitting and extrusion processing device Active CN208854101U (en)

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Application Number Priority Date Filing Date Title
CN201821313441.7U CN208854101U (en) 2018-08-15 2018-08-15 A kind of automatically press-fitting and extrusion processing device

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Application Number Priority Date Filing Date Title
CN201821313441.7U CN208854101U (en) 2018-08-15 2018-08-15 A kind of automatically press-fitting and extrusion processing device

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CN208854101U true CN208854101U (en) 2019-05-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110788333A (en) * 2019-11-23 2020-02-14 无锡市金属垫片有限公司 Production process of metal winding gasket and metal winding gasket
CN113458748A (en) * 2021-07-12 2021-10-01 东莞长盈精密技术有限公司 Automatic extrusion equipment and automatic extrusion method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110788333A (en) * 2019-11-23 2020-02-14 无锡市金属垫片有限公司 Production process of metal winding gasket and metal winding gasket
CN110788333B (en) * 2019-11-23 2021-08-03 无锡市金属垫片有限公司 Production process of metal winding gasket and metal winding gasket
CN113458748A (en) * 2021-07-12 2021-10-01 东莞长盈精密技术有限公司 Automatic extrusion equipment and automatic extrusion method thereof
CN113458748B (en) * 2021-07-12 2022-04-26 东莞长盈精密技术有限公司 Automatic extrusion equipment and automatic extrusion method thereof

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