CN216829045U

CN216829045U - Automatic soldering, detecting and bending integrated machine for coil

Info

Publication number: CN216829045U
Application number: CN202220196897.XU
Authority: CN
Inventors: 何鹏
Original assignee: Foshan Tianda Electromechanical Technology Co ltd
Current assignee: Foshan Tianda Electromechanical Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-28
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses an automatic soldering tin of coil, detection, all-in-one of bending, including feed mechanism, carousel, scaling powder station, soldering tin station, detection station, the station of bending, wherein the periphery of carousel is located in proper order to feed mechanism, scaling powder station, soldering tin station, detection station and the station of bending. The utility model discloses a scaling powder station carries out the automation and soaks the scaling powder, reentrant soldering tin station, scrape the tin piece and scrape behind tin cream surface one deck, the probe degree of depth of testing tin liquid downwards, control the decurrent degree of depth of lifter plate afterwards, make the pin dip in the tin liquid, thereby the pin is stained with the tin liquid, accomplish soldering tin, the entering detection station afterwards, the product reentrant bending station that detects, buckle 90 with the pin to coil inside, the above-mentioned process is full-automatic to go on, the artificial participation that has significantly reduced, can improve the machining precision of coil pin, guarantee the accuracy of product processing, can realize the automated production of inductance product again, improve product percent of pass and production efficiency.

Description

Automatic soldering, detecting and bending integrated machine for coil

Technical Field

The utility model relates to an electronic components processing technology field, in particular to automatic soldering tin of coil, detection, all-in-one of bending.

Background

In the prior art, in addition to winding, other important manufacturing processes such as soldering, detection, bending and the like are manually completed in the production industry of coils of micro motors. Because this kind of inductance product does not have regular reference surface, when artifical handheld, can not guarantee the machining precision and the processing accuracy of product, simultaneously, manual work receives subjective mood to influence great, confuses qualified, unqualified product easily to reduce the product percent of pass, produce extravagantly, production efficiency is low, and soldering tin is scalded easily under the operation of high temperature moreover. Therefore, it is necessary to provide an automatic coil soldering, detecting and bending all-in-one machine which can improve the processing precision of coil pins, ensure the accuracy of product processing, realize the automatic production of inductance products and improve the product yield and production efficiency, and is used for the production and manufacturing of inductance coils.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an automatic soldering tin of coil, detection, all-in-one of bending.

According to the utility model discloses an automatic soldering tin of coil, detection, all-in-one of bending of first aspect embodiment, include:

the feeding mechanism comprises a feeding track and a material pushing frame, the feeding track comprises a plurality of first clamp heads, a coil can be sleeved on the first clamp heads, and the first clamp heads can move;

the coil can be sleeved on the second clamp head, and the material pushing frame is used for pushing the coil from the first clamp head to the second clamp head;

the soldering flux station comprises a soldering flux accommodating groove;

the tin soldering station comprises a tin furnace, a tin scraping mechanism, a probe and a waste tin accommodating tank, wherein the tin scraping mechanism comprises a tin scraping sheet, the tin scraping sheet is positioned above the tin furnace, the tin scraping sheet can move up and down along the radial direction of the rotary table, the waste tin accommodating tank is positioned on one side of the tin furnace, the waste tin accommodating tank is used for containing tin paste scraped off by the tin scraping sheet, the probe is positioned above the tin furnace, and the probe can move up and down;

the detection station comprises a plurality of test needles and a first stripping frame, the test needles are positioned below the coils, each pin is correspondingly provided with two test needles for clamping the pins, and the first stripping frame is used for stripping the coils which are detected to be unqualified from the second clamp head;

the bending station is used for bending the pins;

the feeding mechanism, the scaling powder station, the soldering tin station, the detection station and the bending station are sequentially arranged on the periphery of the turntable.

According to the utility model discloses automatic soldering tin of coil, detection, all-in-one of bending have following beneficial effect at least:

1. the utility model discloses a scaling powder station carries out automatic scaling powder that soaks, reentrant soldering tin station, scrape the tin piece and scrape behind tin cream surface one deck, the probe tests the tin liquid degree of depth downwards, control the decurrent degree of depth of lifter plate afterwards, make the pin dip in the tin liquid, thereby the pin is stained with the tin liquid, accomplish soldering tin, get into the detection station afterwards, the test needle clips the pin and tests, if the defective work appears, first taking off the frame can be dialled the coil, the product through the detection gets into the station of bending again, buckle 90 with the pin to the coil is inside. The process is carried out fully automatically, manual participation is greatly reduced, the processing precision of coil pins can be improved, the accuracy of product processing is guaranteed, automatic production of inductance products can be realized, and the product percent of pass and the production efficiency are improved.

2. When the utility model is used for feeding, the coil is sleeved on the plurality of first clamp heads in advance, the first clamp heads move to the position of the coil bearing seat and are butted with the second clamp heads, the coil on the first clamp heads is pushed to the second clamp heads by the material pushing frame, the feeding of the coil to the soldering machine is completed, and the coil bearing seat drives the coil to carry out subsequent soldering tin treatment; the first anchor clamps head in batches is gone up to the material loading runway, and when the coil accepting seat received this coil and got into next station, the coil was accepted to the next time just along with first anchor clamps head motion to handing-over position, waited the material loading, waited that next coil accepting seat reachs the handing-over position, can handing-over coil at once, and the material loading is fast, but continuity of operation need not artifical material loading, realizes soldering tin machine's full automatization.

According to some embodiments of the invention, the front end side wall of the first and/or second clamp head is provided with a protrusion, said protrusion cooperating with the inner wall of the coil. The clamp head is convenient to take off and take, and the bulge plays a role in positioning the coil and prevents the coil from rotating circumferentially.

According to the utility model discloses a some embodiments, fixture mechanism still including set firmly in the mount of carousel, the lifter plate with the mount passes through sliding linkage, the lifter plate with still be equipped with the elastic construction between the mount, the lifter plate can kick-back to initial position after descending, the top of lifter plate has the bearing block of evagination.

According to some embodiments of the utility model, the scaling powder station still includes first mechanism of pushing down, but first mechanism of pushing down includes the first holding down plate of up-and-down motion, first holding down plate is located the top of lifter plate, the scaling powder holding tank is located the below of coil. The first lower pressing plate moves downwards to press the bearing blocks, so that the pins are immersed in the soldering flux.

According to the utility model discloses a some embodiments, soldering tin station still includes the second and pushes down the mechanism, but the second pushes down the mechanism and includes the second holding down plate of up-and-down motion, the second holding down plate is located the top of lifter plate. When the probe detects the tin liquor degree of depth, and then control second holding down plate downstream and down push the lifter plate for the pin soaks in the tin liquor.

According to some embodiments of the utility model, but the test needle up-and-down motion, just the test needle can move in opposite directions in order to clip the pin. The test needle moves upwards to reach the two sides of the pin, and then moves towards the pin until the pin is clamped for detection.

According to some embodiments of the utility model, the material loading runway still includes first motion board and second motion board, a plurality of first anchor clamps head is arranged in proper order and is fixed in along left right direction on the first motion board, the second motion board is located the below of first motion board, the second motion board with first motion board passes through the guide rail and connects, the guide rail sets up along the fore-and-aft direction, the second motion board can be followed left right direction and moved. The second motion plate can drive the first clamp heads to move in a whole row by moving left and right, and the first motion plate can move back and forth along the guide rail, so that the first clamp heads fixedly arranged on the first motion plate also move back and forth integrally, and the back and forth movement can facilitate the involution and the separation of the first clamp heads and the second clamp heads.

According to some embodiments of the utility model, the station of bending is including the template of bending and pressure scute, but the template level of bending and up-and-down motion, but the pressure scute up-and-down motion, the edge of the template of bending is equipped with the decurrent breach of slope, press the scute initial state to lie in the below of coil and lie in the rear of pin down. The bending template moves upwards to reach the position on the same horizontal plane with the pins, then moves towards the pin direction, the inclined plane in the gap acts on the pins to enable the pins to be bent inwards slowly, then the bending template returns back, the corner pressing plate below the coil moves upwards, and the pins bent at a certain angle are further pressed upwards to enable the pins to be bent to be 90 degrees.

According to the utility model discloses a some embodiments still include the unloading station, according to the carousel rotation order, the unloading station is located after the station of bending, the unloading station includes that the second takes off frame and unloading conveyer belt, the second takes off the frame and is used for following the finished product coil the overhead take off of second anchor clamps, the unloading conveyer belt is located the below of second anchor clamps head. And the second stripping frame pulls out the coil, and the coil falls on the blanking conveying belt to complete blanking.

According to some embodiments of the utility model, be equipped with a plurality of on the carousel anchor clamps mechanism, anchor clamps mechanism with scaling powder station, soldering tin station, detection station, the station of bending and unloading station one-to-one. Each station corresponds to one set of fixture mechanism, and each station can do different processes simultaneously like this, and efficiency is higher.

According to the utility model discloses a some embodiments, it locates to push away the material frame under initial condition first anchor clamps are overhead, it drives actuating cylinder to set firmly a plurality of on the first motion plate, it is used for the drive to drive actuating cylinder push away the material frame motion, singly push away the material frame and contain more than two through-holes, the through-hole can overlap simultaneously in the overhead first anchor clamps that correspond quantity, fixture mechanism be equipped with through-hole quantity is the same second anchor clamps head. During operation, the driving cylinder drives the material pushing frame to push the coil to the second clamp head, then the driving cylinder retracts, and the material pushing frame returns to the initial position. A pushing frame can push several coils to the second fixture head simultaneously, and batch loading is realized, batch processing is realized, and efficiency is higher.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic view of the feeding mechanism of the present invention;

FIG. 3 is a schematic diagram of a flux station of the present invention;

FIG. 4 is a schematic view of a soldering station according to the present invention;

fig. 5 is a schematic view of the detection station of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic view of a bending station of the present invention;

fig. 8 is a schematic structural view of the bending template of the present invention;

fig. 9 is a schematic view of the blanking station of the present invention.

Reference numerals: the device comprises a feeding runway 100, a first clamp head 110, a first moving plate 120, a driving cylinder 130, a second moving plate 140, a material pushing frame 200, a through hole 210, a clamp mechanism 300, a lifting plate 310, a second clamp head 320, a fixing frame 330, a pressure-bearing block 340, a turntable 400, a soldering flux station 500, a soldering flux accommodating groove 510, a first lower pressing plate 520, a soldering tin station 600, a tin furnace 610, a tin scraping sheet 620, a probe 630, a waste tin accommodating groove 640, a second lower pressing plate 650, a detection station 700, a test needle 710, a first stripping frame 720, a bending station 800, a bending template 810, a notch 811, a pressure angle plate 820, a blanking station 900, a second stripping frame 910, a blanking conveying belt 920 and a coil 1000.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-9, an automatic tin soldering, detecting and bending integrated machine for a coil comprises:

the feeding mechanism comprises a feeding runway 100 and a material pushing frame 200, wherein the feeding runway 100 comprises 16 first clamp heads 110, a coil 1000 can be sleeved on the first clamp heads 110, the feeding runway 100 further comprises a first moving plate 120 and a second moving plate 140, the 16 first clamp heads 110 are sequentially arranged along the left-right direction and are fixed on the first moving plate 120, the second moving plate 140 is positioned below the first moving plate 120, the second moving plate 140 is connected with the first moving plate 120 through a guide rail, the guide rail is arranged along the front-back direction, the second moving plate 140 can move along the left-right direction, the material pushing frame 200 comprises four material pushing frames 200, each material pushing frame 200 comprises four through holes 210, the through holes 210 can be simultaneously sleeved on the corresponding number of the first clamp heads 110, the material pushing frame 200 is sleeved on the first clamp heads 110 in the initial state, the four material pushing frames 200 divide the 16 first clamp heads 110 into 4 groups, each material pushing frame 200 is driven by one driving cylinder 130, the driving cylinder 130 is fixedly disposed on the first moving plate 120;

the coil winding device comprises a turntable 400, wherein a clamp mechanism 300 is arranged at the edge of the turntable 400, the clamp mechanism 300 comprises a lifting plate 310 and a second clamp head 320 arranged on the lifting plate 310, a coil 1000 can be sleeved on the second clamp head 320, and a material pushing frame 200 is used for pushing the coil 1000 from a first clamp head 110 to the second clamp head 320;

a flux station 500 including a flux containment groove 510;

the tin soldering station 600 comprises a tin furnace 610, a tin scraping mechanism, a probe 630 and a waste tin containing tank 640, wherein the tin scraping mechanism comprises a tin scraping sheet 620, the tin scraping sheet 620 is positioned above the tin furnace 610, the tin scraping sheet 620 can move up and down along the radial direction of the turntable 400, the waste tin containing tank 640 is positioned on one side of the tin furnace 610, the waste tin containing tank 640 is used for containing tin paste scraped off by the tin scraping sheet 620, the probe 630 is positioned above the tin furnace 610, and the probe 630 can move up and down;

the detection station 700 comprises a plurality of test needles 710 and a first stripping frame 720, wherein the test needles 710 are positioned below the coil 1000, two test needles 710 are correspondingly arranged on each pin for clamping the pin, and the first stripping frame 720 is used for stripping the coil 1000 which is detected to be unqualified from the second clamp head 320;

a bending station 800 for bending the pins;

the feeding mechanism, the soldering flux station 500, the soldering tin station 600, the detection station 700 and the bending station 800 are sequentially arranged on the periphery of the turntable 400.

The working process is as follows: when feeding, the material pushing frame 200 is in an initial state (approximately sleeved at the middle and rear position of the first fixture head 110), the coils 1000 are sleeved at the front ends of the 16 first fixture heads 110 one by one in advance, the pins of the coils 1000 face downward, then the feeding track 100 moves, the first group of fixture mechanisms 300 come to a connection position, the first moving plate 120 moves forward to enable the first fixture heads 110 to be in contact with the front end of the second fixture head, then the driving cylinder 130 pushes the material pushing frame 200 forward, the coils 1000 in front of the material pushing frame 200 are simultaneously pushed onto the second fixture head to complete feeding of the first group of coils 1000, the driving cylinder 130 drives the material pushing frame 200 to retract, then the feeding track 100 continues to move to enable the second group of coils 1000 to reach the material receiving frame connection position, and waiting for feeding; the fixture mechanism 300 behind the receiving coil 1000 enters the soldering flux station 500 along with the turntable 400, automatic soldering flux dipping is carried out, and then the soldering tin station 600 is entered, one layer of tin paste surface is scraped off by the tin scraping sheet 620, the scraped waste tin falls into the waste tin containing groove 640, then the tin furnace 610 is heated, the probe 630 tests the depth of tin liquid downwards, the downward depth of the lifting plate 310 is controlled later, so that the pin is immersed in the tin liquid, the pin is stained with the tin liquid, soldering tin is completed, then the pin enters the detection station 700, the test pins 710 on two sides of the pin clamp the pin for testing, if unqualified products appear, the first stripping frame 720 can pull down the coil 1000, the tested product enters the bending station 800 again, and the pin is bent 90 degrees towards the inside of the coil 1000. The process is carried out fully automatically, manual participation is greatly reduced, the processing precision of 1000 pins of the coil can be improved, the accuracy of product processing is guaranteed, automatic production of inductance products can be achieved, and the product percent of pass and the production efficiency are improved.

In some of these embodiments, the front end side wall of the first clamp head 110 and/or the second clamp head 320 is provided with a protrusion that mates with the inner wall of the coil 1000. The clamp head is convenient to take off and take, the protrusion plays a role in positioning the coil 1000, and the coil 1000 is prevented from rotating in the circumferential direction.

In some embodiments, the clamping mechanism 300 further includes a fixing frame 330 fixed to the turntable 400, the lifting plate 310 is connected to the fixing frame 330 by a sliding rail, an elastic structure is further disposed between the lifting plate 310 and the fixing frame 330, the lifting plate 310 can rebound to an initial position after descending, and a convex bearing block 340 is disposed on the top of the lifting plate 310.

In some of these embodiments, the flux station 500 further comprises a first pressing mechanism, the first pressing mechanism comprises a first pressing plate 520 capable of moving up and down, the first pressing plate 520 is located above the lifting plate 310, and the flux containing groove 510 is located below the coil 1000. The first lower press plate 520 moves downward to press the pressing blocks 340 so that the leads are immersed in the flux.

In some of these embodiments, the soldering station 600 further comprises a second pressing mechanism comprising a second pressing plate 650 movable up and down, the second pressing plate 650 being located above the lifting plate 310. When the probe 630 detects the depth of the molten tin, the second pressing plate 650 is controlled to move downward to press the lifting plate 310 downward, so that the leads are immersed in the molten tin.

In some of these embodiments, the test pins 710 can move up and down and the test pins 710 can move toward each other to grip the pins. The test pin 710 moves upward to both sides of the pin and then moves toward the pin until it is clamped for testing.

In some of these embodiments, bending station 800 includes a bending template 810 and a compression plate 820, bending template 810 is movable horizontally and up and down, compression plate 820 is movable up and down, the edges of bending template 810 are provided with oblique downward notches 811, and compression plate 820 is initially positioned below coil 1000 and behind the leads. The bending template 810 moves upward to reach the position of the same horizontal plane with the pins, then moves towards the pin direction, the inclined plane in the gap 811 acts on the pins to enable the pins to be bent inwards slowly, then the bending template 810 retracts, the angle pressing plate 820 located below the coil 1000 moves upward, and the pins bent at a certain angle are further pressed upwards to enable the pins to be bent to be 90 degrees.

In some embodiments, the blanking station 900 is further included, and the blanking station 900 is located after the bending station 800 according to the rotation sequence of the turntable 400, the blanking station 900 includes a second stripping frame 910 and a blanking conveyer belt 920, the second stripping frame 910 is used for stripping the finished coil 1000 from the second fixture head 320, and the blanking conveyer belt 920 is located below the second fixture head 320. The second disengaging frame 910 pulls out the coil 1000, and the coil 1000 falls on the blanking conveyer belt 920 to complete blanking.

In some embodiments, the turntable 400 is provided with a plurality of fixture mechanisms 300, and the fixture mechanisms 300 correspond to the soldering flux station 500, the soldering tin station 600, the detection station 700, the bending station 800 and the blanking station 900 one by one. Each station corresponds to one set of fixture mechanism 300, so that each station can simultaneously perform different procedures, and the efficiency is higher.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides an automatic soldering tin of coil, detection, all-in-one of bending which characterized in that includes:

the feeding mechanism comprises a feeding track (100) and a material pushing frame (200), wherein the feeding track (100) comprises a plurality of first clamp heads (110), a coil (1000) can be sleeved on the first clamp heads (110), and the first clamp heads (110) can move;

the coil winding device comprises a turntable (400), wherein a clamp mechanism (300) is arranged at the edge of the turntable (400), the clamp mechanism (300) comprises a lifting plate (310) and a second clamp head (320) installed on the lifting plate (310), a coil (1000) can be sleeved on the second clamp head (320), and a material pushing frame (200) is used for pushing the coil (1000) from the first clamp head (110) to the second clamp head (320);

a flux station (500) comprising a flux-containing groove (510);

the tin soldering station (600) comprises a tin furnace (610), a tin scraping mechanism, a probe (630) and a waste tin containing tank (640), wherein the tin scraping mechanism comprises a tin scraping sheet (620), the tin scraping sheet (620) is located above the tin furnace (610), the tin scraping sheet (620) can move up and down along the radial direction of the rotary table (400), the waste tin containing tank (640) is located on one side of the tin furnace (610), the waste tin containing tank (640) is used for containing tin paste scraped off by the tin scraping sheet (620), the probe (630) is located above the tin furnace (610), and the probe (630) can move up and down;

the detection station (700) comprises a plurality of test needles (710) and a first stripping frame (720), wherein the test needles (710) are positioned below the coil (1000), each pin is correspondingly provided with two test needles (710) for clamping the pins, and the first stripping frame (720) is used for stripping the coil (1000) which is detected to be unqualified from the second clamp head (320);

a bending station (800) for bending the pins;

the feeding mechanism, the soldering flux station (500), the soldering tin station (600), the detection station (700) and the bending station (800) are sequentially arranged on the periphery of the turntable (400).

2. The automatic coil soldering, detecting and bending all-in-one machine as claimed in claim 1, wherein a protrusion is arranged on the side wall of the front end of the first clamp head (110) and/or the second clamp head (320), and the protrusion is matched with the inner wall of the coil (1000).

3. The integrated machine for automatically soldering, detecting and bending coils as claimed in claim 1, wherein the fixture mechanism (300) further comprises a fixing frame (330) fixedly arranged on the turntable (400), the lifting plate (310) is connected with the fixing frame (330) through a sliding rail, an elastic structure is further arranged between the lifting plate (310) and the fixing frame (330), the lifting plate (310) can rebound to an initial position after descending, and a convex bearing block (340) is arranged at the top of the lifting plate (310).

4. The all-in-one machine for automatically soldering, detecting and bending coils as claimed in claim 3, wherein the flux station (500) further comprises a first pressing mechanism, the first pressing mechanism comprises a first pressing plate (520) capable of moving up and down, the first pressing plate (520) is located above the lifting plate (310), and the flux containing groove (510) is located below the coil (1000).

5. The automatic coil soldering, detecting and bending all-in-one machine as claimed in claim 3, wherein the soldering station (600) further comprises a second pressing mechanism, the second pressing mechanism comprises a second pressing plate (650) capable of moving up and down, and the second pressing plate (650) is located above the lifting plate (310).

6. The automatic coil soldering, detecting and bending all-in-one machine as claimed in claim 1, wherein the feeding track (100) further comprises a first moving plate (120) and a second moving plate (140), the first fixture heads (110) are sequentially arranged and fixed on the first moving plate (120) along the left-right direction, the second moving plate (140) is located below the first moving plate (120), the second moving plate (140) is connected with the first moving plate (120) through a guide rail, the guide rail is arranged along the front-back direction, and the second moving plate (140) can move along the left-right direction.

7. The coil automatic soldering, detecting and bending all-in-one machine as claimed in claim 1, wherein the bending station (800) comprises a bending template (810) and a corner pressing plate (820), the bending template (810) can move horizontally and vertically, the corner pressing plate (820) can move vertically, an edge of the bending template (810) is provided with a notch (811) inclining downwards, and the corner pressing plate (820) is located below the coil (1000) and behind pins in an initial state.

8. The integrated machine for automatically soldering, detecting and bending coils as claimed in claim 1, further comprising a blanking station (900), wherein the blanking station (900) is located behind the bending station (800) according to the rotation sequence of the turntable (400), the blanking station (900) comprises a second stripping frame (910) and a blanking conveyor belt (920), the second stripping frame (910) is used for stripping a finished coil (1000) from the second fixture head (320), and the blanking conveyor belt (920) is located below the second fixture head (320).

9. The automatic coil soldering, detecting and bending integrated machine according to claim 8, wherein a plurality of clamp mechanisms (300) are arranged on the turntable (400), and the clamp mechanisms (300) correspond to the feeding mechanism, the soldering flux station (500), the soldering station (600), the detecting station (700), the bending station (800) and the blanking station (900) in a one-to-one manner.

10. The integrated machine for automatically soldering, detecting and bending coils as claimed in claim 6, wherein the material pushing frame (200) is sleeved on the first fixture head (110) in an initial state, the first moving plate (120) is fixedly provided with a plurality of driving cylinders (130), the driving cylinders (130) are used for driving the material pushing frame (200) to move, a single material pushing frame (200) comprises more than two through holes (210), the through holes (210) can be sleeved on a corresponding number of first fixture heads (110) at the same time, and the fixture mechanism (300) is provided with the second fixture heads (320) with the same number as the through holes (210).