CN205497100U - A feed mechanism and piston machining device for piston machining device - Google Patents
A feed mechanism and piston machining device for piston machining device Download PDFInfo
- Publication number
- CN205497100U CN205497100U CN201620167319.8U CN201620167319U CN205497100U CN 205497100 U CN205497100 U CN 205497100U CN 201620167319 U CN201620167319 U CN 201620167319U CN 205497100 U CN205497100 U CN 205497100U
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- Prior art keywords
- piston
- charging ram
- hopper
- gathering sill
- guide rail
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- 238000003754 machining Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 44
- 210000001847 Jaw Anatomy 0.000 claims description 7
- 230000003044 adaptive Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000004301 light adaptation Effects 0.000 abstract description 2
- 241001438449 Silo Species 0.000 abstract 5
- 210000003128 Head Anatomy 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229950000845 Politef Drugs 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 235000005035 ginseng Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
Abstract
The utility model discloses a feed mechanism of piston machining device, its characterized in that: including charging ram, drive charging ram reciprocating motion's in the axial material loading drive arrangement and silo, set up the guide way that the piston that supplies to treat processing looped through in the silo, the width of guide way with the external diameter adaptation of piston, the charging ram is close to the one end of silo is provided with double -layered stub bar, is located in the guide way terminal position department the piston with the charging ram, to press from both sides the stub bar coaxial, is located the axial of other pistons in the guide way with the axial direction parallel of charging ram, the charging ram can drive it follows to press from both sides the stub bar one side of silo penetrate and with coaxial hinge joint after follow the opposite side of silo is worn out. It has above -mentioned feed mechanism's piston machining device still to disclose an application.
Description
Technical field
This utility model relates to a kind of machinery processing apparatus, a kind of feed mechanism for Piston Machining device, with
And application has the Piston Machining device of this feed mechanism.
Background technology
Suspension system produces vibrations owing to flexible member is hit, for improving ride comfort and the comfortableness of running car, outstanding
Frame has been installed in parallel amortisseur with flexible member.When shaking when between vehicle frame and vehicle bridge and relative motion occurs, in amortisseur
Piston move up and down.Due to piston and amortisseur cylinder body relative motion frequently, need wear-resisting at the Surface coating of piston
And the material that frictional resistance is little, such as politef, to increase the service life.
For ease of being coated with above-mentioned material on piston outer periphery wall, it usually needs offer annular groove on piston outer periphery wall, such as Shen
Please number be 201320459815.7 Chinese patent disclosed in a kind of piston for shock absorber of automobile, including piston only, piston
Multiple annular piston groove equidistantly it is provided with on the outer circle wall of the bigger diameter end of body；And for example Application No. 201520504517.4
Chinese patent disclosed in a kind of damper piston, including piston only, piston only excircle is provided with cannelure, ring
Shape groove is externally provided with encapsulated layer.
This endless groove on piston, general employing subsequent mechanical processes, and existing machining tool is generally such as application number
Be 201310478919.7 Chinese patent application disclosed in, including machine body, the main shaft of machine body is provided with three
Angle pawl dish, is respectively arranged on the left side and the right side knife rest at triangle pawl dish, and knife rest is provided with and cuts groove cutter, at machine body to relatively
Opposite side in triangle pawl dish is provided with Mobile base, is provided with support column in Mobile base, for coordinating piston complete with triangle pawl dish
Complete fixing.
But above-mentioned machining tool, needs manual feeding, discharging, i.e. needs before processing piston is manually fixed to folder
On tool, and manually piston is taken off from fixture after completion of processing, thus not only reduce the efficiency of processing, and manually
Operation has certain potential safety hazard.
Utility model content
First to be solved in the utility model technical problem is that the problem existed for above-mentioned prior art, it is provided that a kind of
Self-feeding, raising feeding efficiency and the feed mechanism for Piston Machining device of safety.
Second technical problem to be solved in the utility model is to provide a kind of application has the piston of above-mentioned feed mechanism to add
Frock is put.
The technical scheme that above-mentioned first technical problem of this utility model solution is used is: a kind of for Piston Machining device
Feed mechanism, it is characterised in that: include charging ram, drive the most reciprocating feeding of described charging ram to drive
Device and hopper, offer the gathering sill passed sequentially through for piston to be processed in described hopper, described gathering sill
Width is adaptive with the external diameter of described piston, and described charging ram is provided with material folding head near one end of described hopper, is positioned at described
Piston at terminal position and described charging ram in gathering sill, material folding head are coaxial, are positioned at other pistons of described gathering sill
Axially axially in parallel with described charging ram；Described charging ram can drive described material folding head to penetrate from the side of described hopper
And opposite side from described hopper passes after being connected with coaxial piston.
For making material folding head firmly can be connected with piston, described material folding head is provided with axially extended, institute can be inserted into
Stating the fixing axle in the endoporus of piston, the end of described gathering sill is provided with loader away from the side of described charging ram, institute
State and on loader, offer feeding port that run through, that pass through for described piston, charging ram and material folding head, described feeding port and
Fixing axle cooperation makes described material folding head can fasten with piston clip.
Preferably, the fit structure of fixing axle and feeding port is that being provided with on the periphery wall of described fixing axle can be with described work
Plug endoporus perisporium abut the first locating part, described first locating part is flexibly connected with described fixing axle, described on
Being provided with the second locating part on the perisporium of material mouth, described second locating part is flexibly connected with described loader.
Described gathering sill Relative vertical direction is inclined, and the piston coaxial with described charging ram, material folding head is positioned at described guiding
The bottom of groove, thus utilize the gravity of piston self can arrive the terminal part of gathering sill, and need not be by external force.
Preferred according to this utility model, described hopper includes the first hopper and is positioned at the second material below described first hopper
Groove, described gathering sill includes the first gathering sill being formed in described first hopper and is formed in described second hopper
The second gathering sill, the upper end pair of the both ends open of described first gathering sill and bottom and described second gathering sill
Connecing, the bottom of described second gathering sill is closed.
For making piston can stably enter and leave, the upper and lower end of described first gathering sill is respectively provided with necessarily
Radian.
For making piston gently arrive the bottom of the second gathering sill, described second gathering sill entirety is curved.
For guiding charging ram to move back and forth smoothly, also include track base and the guide rail being arranged on described track base,
The bearing of trend of described guide rail is axially in parallel with described charging ram, and the periphery of described charging ram is provided with feeding pedestal, institute
The two bottom sides stating feeding pedestal is respectively arranged with slide block, and described slide block coordinates with described guide rail.
For ease of regulate charging ram position so that it is keep with fixture, piston coaxial, described track base include guide rail seat cushion,
Can the most described guide rail seat cushion adjust in the horizontal direction parallel with the bearing of trend of described guide rail first guide rail adjust
Block and can second leading of adjusting in the horizontal direction vertical with the bearing of trend of described guide rail of the most described guide rail seat cushion
Rail adjustment block, described guide rail is arranged in described second guide rail adjustment block.
The technical scheme that above-mentioned second technical problem of this utility model solution is used is: a kind of Piston Machining device, bag
Including fixture and cut groove organisation of working, the end of described fixture is provided with jaw, described in cut groove organisation of working include cutter,
Cutter holder and drive described cutter holder to move in the horizontal direction and adjust the planker of position, it is characterised in that: also include as above institute
The feed mechanism stated, described fixture is coaxially arranged with described charging ram, thus coordinates with described material folding head and can clamp material folding
Piston on head.
Compared with prior art, the utility model has the advantage of: by arranging the hopper passed sequentially through for piston, and
Can the most reciprocating charging ram, and arrange in the end of charging ram can be with piston clamping and the material folding unclamped
Head, carries out cutting groove processing such that it is able to piston is automatically delivered to clamp successively, improves working (machining) efficiency and safety.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of Piston Machining device of the present utility model；
Fig. 2 is the schematic diagram of the hiding outer housing of Piston Machining device of the present utility model；
Fig. 3 is the partial exploded view of the feed mechanism of Piston Machining device of the present utility model；
Fig. 4 is the partial exploded view of the feed mechanism of Piston Machining device of the present utility model；
Fig. 5 is the schematic diagram of the material folding head of feed mechanism of the present utility model；
Fig. 6 is the schematic diagram of the loader of feed mechanism of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
See Fig. 1～Fig. 4, a kind of Piston Machining device, including feed mechanism 1, fixture 2 with cut groove organisation of working 3,
Above-mentioned feed mechanism 1 and cut groove organisation of working 3 and be arranged on the lathe bed 7 of processing unit (plant), fixture 2 is then arranged on processing
On the geared head 4 of device.
Feed mechanism 1 includes track base 11, be arranged on track base 11 guide rail 12, charging ram 13, drive charging ram
13 along guide rail 12 horizontal reciprocating movement feeding driving device 14, for position piston 5 to be processed material folding 15,
Feeding pedestal 16 and hopper.
Track base 11 is arranged on lathe bed 7, including guide rail seat cushion 111, adjustable is arranged on guide rail seat cushion 111
First guide rail adjustment block 112, the second guide rail adjustment block 113 being arranged in the first guide rail adjustment block 112, guide rail 12 sets
Put in the second guide rail adjustment block 113, and extend along horizontal direction, the main shaft of its direction extended and processing unit (plant)
Axially in parallel, in the present embodiment, guide rail 12 has parallel two.First guide rail adjustment block 112 adjustable its with
Guide rail medicated cushion 111 relative position in the horizontal direction, the direction is parallel with the bearing of trend of guide rail 12, the second guide rail
Adjustment block 113 adjustable its with guide rail medicated cushion 111 relative position in the horizontal direction, the direction is prolonged with guide rail 12
Stretch direction vertical.The guide rail seat cushion 111 of track base 11 is fixed on lathe bed 7 by loading stand 71.
In the present embodiment, it is preferred that feeding driving device 14 includes that feeding drives cylinder 141 and air cylinder support 142,
Feeding drives cylinder 141 to be fixed on guide rails assembling plate 113 one end away from fixture 2 by air cylinder support 142.Charging ram
13 axially the most parallel with guide rail 12, and on the first end of charging ram 13, be provided with above-mentioned material folding 15, charging ram
The other end of 13 then drives the piston rod 145 of cylinder 141 to be connected by adpting flange 143 and cylinder connector 144 with feeding.
Charging ram 13 periphery is provided with feeding pedestal 16, and the two bottom sides of feeding pedestal 16 is respectively arranged with slide block 161,
Slide block 161 coordinates with guide rail 12, such that it is able to the motion to feeding pedestal 16 and charging ram 13 guides.Permissible
The position of charging ram 13 is finely tuned by adjusting the position of the first guide rail adjustment block 112 or the second guide rail adjustment block 113,
So that it is coaxial with fixture 2.
In the present embodiment, hopper includes the first hopper 17 and the second hopper 18, and the first hopper 17 is arranged on the second hopper
Above in the of 18, the second hopper 18 is then disposed adjacent with the first end of charging ram 13.It is formed with first in first hopper 17 to lead
Being formed with the second gathering sill 181 in groove 171, the second hopper 18, the first gathering sill 171 and the second gathering sill 181 are equal
Inclined with vertical direction, and the both ends open of the first gathering sill 171, and the bottom of the second gathering sill 181 is closed,
The bottom of the first gathering sill 171 is docked with the upper end of the second gathering sill 181 and is seamlessly transitted, in order to piston 5
Just can arrive the bottom of the second gathering sill 181 from the upper end of the first gathering sill 171 under self gravitation effect.
Preferably, the first gathering sill 171 is elongated, and the upper and lower end of the first gathering sill 171 has respectively
There is certain radian, thus can preferably guide piston 5 to pass through；Second gathering sill 181 is due to relatively the first gathering sill 171
Shorter, therefore, its entirety is curved so that piston 5 can smoothly arrive bottom.The width of the first gathering sill 171
Degree, the second gathering sill 181 width all with the external diameter of piston 5 adaptation so that piston 5 can pass through the most one by one,
And when piston 5 passes through, its axial axially in parallel with charging ram 13.
Second hopper 18 offers towards the position that the one side of charging ram 13 is corresponding with the bottom of the second gathering sill 181
Pusher mouth 182 so that the first end of charging ram 13 together can be pushed in the second hopper 181 together with material folding 15.Ginseng
See Fig. 5, material folding 15 is provided with axially extended fixing axle 151, the periphery wall of fixing axle 151 is provided with first
Locating part 152, the first locating part 152 is flexibly connected with fixing axle 151, and the external diameter of fixing axle 151 and piston
The internal diameter of 5 is adaptive.Second gathering sill 181 is provided with loader 19 away from the side of charging ram 13, and loader 19 is opened
It is provided with the feeding port 191 run through, passes through for piston 5, material folding 15 and charging ram 13.See Fig. 6, feeding port
Being provided with the second locating part 192 on the perisporium of 191, same, the second locating part 192 is flexibly connected with loader 19.
Preferably, the first locating part 152 and the second locating part 192 are steel ball, and the second locating part 192 has four,
It is evenly distributed on the perisporium of feeding port 191.During feeding, charging ram 13 drives material folding 15 by piston 5 toward loader
19 directions promote, and when piston 5 enters in feeding port 191, due to the effect of elastic force, the second locating part 192 pushes against
In the periphery of piston 5, and so that the first locating part 152 can push against with piston 5 endoporus 51, thus material folding head
15 are fixedly clamped with piston 5.
In the present embodiment, the first hopper 17 at an opening away from charging ram 13, and can pass through hopper cover plate 172
Close；Second hopper 18 can be at an opening away from charging ram 13.Thus, charging ram 13 can by piston 5 from
Second hopper 18 is released.Second hopper 18 is also provided with the first hopper joint 183 in this one side, thus by first
Hopper 17 and the second hopper 18 connect fixing.The another side (towards the one side of charging ram 13) of the second hopper 18 is the most permissible
It is provided with hopper fixed mount 184, for by the second hopper 18 and fixing (the hopper fixed mount of loading stand 71 on lathe bed 7
The bin connected can be provided for) between 184 and loading stand 71.Feed mechanism 1 periphery is provided with outer housing 6, and first
The top of outer housing 6 is closed in the upper end of hopper 17, in order to piston 5 is delivered to the first hopper 17 by feed mechanism, and
The upper end of the first hopper 17 is provided with the second hopper joint 173, fixing for being connected with outer housing 6.
Alternatively, it is also possible to offer pusher mouth on the two sides of the bottom of the second hopper 181, push for material folding 15
And piston 5 is released.Alternatively, the first hopper 17 and the second hopper 18 can also be one-body molded.
Fixture 2 is arranged on the main shaft in geared head 4, and with main shaft synchronous rotary.Fixture 2 is same with charging ram 13
Axle, and the end of fixture 2 is provided with jaw 21, can clamp or unclamp piston 5.
Cut groove organisation of working 3 and be arranged on fixture 2 adjacent, including cutter 31, cutter holder 32 and drive cutter holder 32
Move in the horizontal direction and adjust the planker 33 of position.Fixture 2 and cut groove organisation of working 3 and can use existing technology.
During use, it is possible, firstly, to by existing pay-off or manual by the way of the piston 5 of (cutting groove) to be processed is depended on
In secondary the first gathering sill 171 putting into the first hopper 17, piston 5 relies on the gravity of self to drop into the second gathering sill
The bottom of 181, and owing to the bottom of the second gathering sill 181 is closed, piston 5 stops at the second gathering sill 181
Lower end, now material folding 15 is positioned at outside the second gathering sill 181；Then, start feeding and drive cylinder 141, push away
Material bar 13 action, pushes piston 5 to by material folding 15, and thus, the fixing axle 151 in material folding 15 is gradually inserted work
In the endoporus 51 of plug 5, and the first locating part 152 is now placed in outside the endoporus 51 of piston 5；Then, charging ram 13
Continuation action, until piston 5 is shifted onto at loader 19, the second locating part 192 stress retraction, and to piston 5
Periphery wall applies radially inner power, and endoporus 51 perisporium of piston 5 is then applied radially by the first locating part 152 simultaneously
Outside power, the first locating part 152 pushes against with piston 5 endoporus 51 and material folding 15 can be fixed with piston 5；
Subsequently, charging ram 13 continues action, promotes piston 5 until at fixture 2, piston 5 is pressed from both sides by the jaw 21 of fixture 2
Tightly, and piston 5 is pushed against by material folding 15 with fixture 2, it is to avoid piston 5 moves in the axial direction, hereafter, geared head 4
Main axis, cut after the cutter 31 of groove organisation of working 3 are adjusted to suitable Working position and start working, at piston 5
Perisporium on cut out annular groove；Finally, after completion of processing, charging ram 13 is retracted into initial position, and jaw 21
Also unclamping the piston 5 processed, hereafter, piston 5 leaves jaw 21, and optional a kind of mode is, this of fixture 2
Spring can be set in end, after jaw 21 unclamps, by spring, piston 5 is ejected；Another way is, passes through
At loader 19, stock stop is set away from the side of the second hopper 18 so that the relative loader 19 of piston 5 can only enter
The motion that row is unidirectional, when charging ram 13 drives material folding 15 and piston 5 retraction arrives loader 19, piston 5 quilt
Stock stop blocks and cannot depart from material folding 15 with material folding 15 motion, thus piston 5 goes out after dropping to feed opening
Material.In the above-mentioned course of processing, feeding and discharging are automatically performed, and work efficiency height is the most safer.
Claims (10)
1. the feed mechanism for Piston Machining device, it is characterised in that: include that charging ram (13), driving are described
Charging ram (13) the most reciprocating feeding driving device (14) and hopper, offer in described hopper for treating
The gathering sill that the piston (5) of processing passes sequentially through, the width of described gathering sill is adaptive with the external diameter of described piston (5), described
Charging ram (13) is provided with material folding head (15) near one end of described hopper, is positioned at the work at described gathering sill terminal position
Plug (5) and described charging ram (13), material folding head (15) are coaxial, are positioned at the axial and institute of other pistons (5) of described gathering sill
State the axially in parallel of charging ram (13)；Described charging ram (13) can drive described material folding head (15) to penetrate from the side of described hopper
And pass from the opposite side of described hopper after being connected with coaxial piston (5).
2. the feed mechanism for Piston Machining device as claimed in claim 1, it is characterised in that: described material folding head
(15) the fixing axle (151) in the endoporus (51) axially extended, described piston (5) can be inserted into, described guiding it are provided with on
The end of groove is provided with loader (19) away from the side of described charging ram (13), described loader (19) offers and runs through
, the feeding port (191) passed through for described piston (5), charging ram (13) and material folding head (15), described feeding port (191) and consolidating
Dead axle (151) cooperation makes described material folding head (15) can be fixedly clamped with piston (5).
3. the feed mechanism for Piston Machining device as claimed in claim 2, it is characterised in that: described fixing axle
(151) the first locating part (152) that can abut with the perisporium of the endoporus (51) of described piston (5) it is provided with on periphery wall, described
First locating part (152) is flexibly connected with described fixing axle (151), and the perisporium of described feeding port (191) is provided with second
Locating part (192), described second locating part (192) is flexibly connected with described loader (19).
4. the feed mechanism for Piston Machining device as according to any one of claims 1 to 3, it is characterised in that:
Described gathering sill Relative vertical direction is inclined, and the piston (5) coaxial with described charging ram (13), material folding head (15) is positioned at institute
State the bottom of gathering sill.
5. the feed mechanism for Piston Machining device as claimed in claim 4, it is characterised in that: described hopper bag
Including the first hopper (17) and be positioned at second hopper (18) of described first hopper (17) lower section, described gathering sill includes being formed at institute
State the first gathering sill (171) in the first hopper (17) and be formed at the second gathering sill in described second hopper (18)
(181), the upper end pair of the both ends open of described first gathering sill (171) and bottom and described second gathering sill (181)
Connecing, the bottom of described second gathering sill (181) is closed.
6. the feed mechanism for Piston Machining device as claimed in claim 5, it is characterised in that: described first leads
It is respectively provided with certain radian to the upper and lower end of groove (171).
7. the feed mechanism for Piston Machining device as claimed in claim 5, it is characterised in that: described second leads
Overall curved to groove (181).
8. the feed mechanism for Piston Machining device as according to any one of claims 1 to 3, it is characterised in that:
Also include track base (11) and the guide rail (12) being arranged on described track base (11), the bearing of trend of described guide rail (12) and institute
Stating the axially in parallel of charging ram (13), the periphery of described charging ram (13) is provided with feeding pedestal (16), described feeding pedestal (16)
Two bottom sides be respectively arranged with slide block (161), described slide block (161) coordinates with described guide rail (12).
9. the feed mechanism for Piston Machining device as claimed in claim 8, it is characterised in that: described track base
(11) include guide rail seat cushion (111), can the most described guide rail seat cushion (111) parallel with the bearing of trend of described guide rail (12)
In horizontal direction adjust guide rail the first adjustment block (112) and can the most described guide rail seat cushion (111) with described guide rail
(12) the second guide rail adjustment block (113) adjusted in the horizontal direction that bearing of trend is vertical, described guide rail (12) is arranged on institute
State in the second guide rail adjustment block (113).
10. a Piston Machining device, including fixture (2) with cut groove organisation of working (3), the end of described fixture (2) is arranged
Have jaw (21), described in cut groove organisation of working (3) and include cutter (31), cutter holder (32) and drive described cutter holder (32) at water
Square to mobile and adjust the planker (33) of position, it is characterised in that: also include as according to any one of claim 1～9
Feed mechanism (1), described fixture (2) is coaxially arranged with described charging ram (13), thus coordinate with described material folding head (15) and
The piston (5) on material folding head (15) can be clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620167319.8U CN205497100U (en) | 2016-03-04 | 2016-03-04 | A feed mechanism and piston machining device for piston machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620167319.8U CN205497100U (en) | 2016-03-04 | 2016-03-04 | A feed mechanism and piston machining device for piston machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205497100U true CN205497100U (en) | 2016-08-24 |
Family
ID=56726547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620167319.8U Active CN205497100U (en) | 2016-03-04 | 2016-03-04 | A feed mechanism and piston machining device for piston machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205497100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619158A (en) * | 2016-03-04 | 2016-06-01 | 宁波夏亿机电科技有限公司 | Feeding mechanism used for piston machining device and piston machining device |
-
2016
- 2016-03-04 CN CN201620167319.8U patent/CN205497100U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619158A (en) * | 2016-03-04 | 2016-06-01 | 宁波夏亿机电科技有限公司 | Feeding mechanism used for piston machining device and piston machining device |
| CN105619158B (en) * | 2016-03-04 | 2018-03-09 | 宁波夏亿机电科技有限公司 | Feed mechanism and Piston Machining device for Piston Machining device |
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