CN115647422A - Numerical control drilling device for center sill of railway wagon - Google Patents
Numerical control drilling device for center sill of railway wagon Download PDFInfo
- Publication number
- CN115647422A CN115647422A CN202210584469.9A CN202210584469A CN115647422A CN 115647422 A CN115647422 A CN 115647422A CN 202210584469 A CN202210584469 A CN 202210584469A CN 115647422 A CN115647422 A CN 115647422A
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- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention discloses a numerical control drilling device for a center sill of a railway wagon, which comprises a machine body, wherein a machining station is arranged on the machine body; a conveying track is arranged at the processing station; the bottom end of the conveying frame is in sliding fit with the conveying track; the conveying frame is provided with a conveying assembly and a supporting platform; the supporting platforms are positioned at two sides of the conveying assembly and used for supporting the edge of the workpiece; the lifting component is arranged on the machine body; the lifting components and the conveying frame are distributed at intervals in the conveying direction; the lifting component can move along the height direction of the machine body and is used for supporting the bottom end of the workpiece; the processing cutter assembly comprises a first processing cutter and a second processing cutter, and the first processing cutter can move close to or far away from the conveying frame; the second processing blade may be moved closer to or further away from the carriage. The rail wagon center sill fine-adjustment mechanism can realize integral movement through movement of the conveying frame when conveying the rail wagon center sill, and the conveying assembly on the conveying frame can drive the rail wagon center sill to be fine-adjusted and then is machined through the machining cutter assembly.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a numerical control drilling device for a center sill of a railway wagon.
Background
At present, traditional railway freight car center sill adopts whole shaped steel structure, it is big from the beginning, and because the cross-section at both ends and middle part is the same about the center sill, difficult regulation center sill height when production, especially when production transportation, owing to carry whole shaped steel to the processing station and process, when the processing hole site, can not set up the cutter structure in each position, the event need carry center sill structure to the processing station and aim at the cutter structure, but need the whole position of center sill to finely tune at the course of working, then need the whole start-up of conveyor, extravagant power resource.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a numerical control drilling device for a center sill of a railway wagon, which can realize integral movement through the movement of a conveying frame when the center sill of the railway wagon is conveyed, and a conveying assembly on the conveying frame can drive the center sill of the railway wagon to be finely adjusted and then is used for machining through a machining cutter assembly.
The purpose of the invention is realized by adopting the following technical scheme:
a numerical control drilling device for a center sill of a railway wagon comprises,
the machine body is provided with a processing station; a conveying track is arranged at the processing station;
the bottom end of the conveying frame is in sliding fit with the conveying track; the conveying frame is provided with a conveying assembly and a supporting platform, and the conveying assembly is used for conveying workpieces along a conveying direction; the supporting platforms are positioned at two sides of the conveying component and are used for supporting the edge of the workpiece;
the lifting component is arranged on the machine body; the lifting assembly and the conveying frame are distributed at intervals in the conveying direction; the lifting assembly can move along the height direction of the machine body and is used for supporting the bottom end of a workpiece;
the processing cutter assembly comprises a first processing cutter and a second processing cutter, and the first processing cutter is arranged on the machine body and positioned above the conveying frame; the first processing knife can move close to or far away from the conveying frame; the second processing cutter is arranged on the machine body and is positioned on the side part of the conveying frame; the second processing knife may be moved closer to or away from the carriage.
Further, the processing cutter assembly further comprises a first cutter frame and a first cutter frame driving piece, and the first cutter frame is installed above the conveying frame; two sides of the first tool rest are arranged on two sides of the conveying track through the upright post, and the first tool rest can move along the height direction of the upright post; the first processing cutter is arranged at the bottom end of the first cutter rest; the first cutter frame driving piece is used for driving the first cutter frame to move along the height direction of the upright column so as to enable the first processing cutter to move close to or far away from the conveying frame.
Further, the processing knife assembly further comprises a second knife rest and a second knife rest driving piece, the second knife rest is installed on the machine body and located on the side portion of the conveying frame, and the second processing knife is installed on the second knife rest; the second tool rest driving part is used for driving the second tool rest to move close to or far away from the conveying frame.
Further, the first processing cutter and the second processing cutter are drill bits.
Furthermore, the two ends of the machine body along the conveying direction are provided with the conveying track and the conveying frame; and the machine body is provided with a positioning assembly, and the positioning assembly is positioned between the two conveying rails and is used for positioning the workpiece.
Furthermore, a chip groove is formed in the conveying track, extends along the conveying direction and is located below the conveying frame to receive machining scraps; and a spiral conveyor is arranged in the chip groove.
Further, the conveying assembly comprises a plurality of conveying rollers and a conveying roller driving part, and the conveying roller driving part is used for driving the conveying rollers to rotate.
Further, lifting unit includes lift roller, mounting bracket and lift roller driving piece, the mounting bracket install in on the organism, the direction of height motion of mounting bracket can be followed on the mounting bracket to the lift roller pin joint, the lift roller driving piece is used for driving the lift roller up-and-down motion.
Furthermore, a plurality of lifting assemblies are arranged on the machine body and distributed at intervals in the conveying direction.
Furthermore, the bottom of carriage is equipped with drive wheel and drive wheel driving piece, the drive wheel pin joint in the bottom of carriage, the drive wheel driving piece is used for driving the drive wheel rotates in order to order about the carriage slides on the delivery track.
Compared with the prior art, the invention has the beneficial effects that: when carrying out railway freight car center sill and carrying, can place railway freight car center sill whole on the conveying assembly of carriage, then the carriage slides along the delivery track and can realize the transport of railway freight car center sill, and when finely tuning, then can start conveying assembly, conveying assembly can carry out the position fine setting to railway freight car center sill position on the carriage, need not carriage moving as a whole, practices thrift power resource, and adjustable precision is higher.
And after the railway freight car center sill is conveyed to a proper position, the first machining cutter of the machining cutter assembly can move close to the conveying frame above the conveying frame to drill the upper part of the railway freight car center sill on the conveying assembly, the second machining cutter can move close to the conveying frame on the side part of the conveying frame to drill the side part of the railway freight car center sill on the supporting platform, the automation degree is high, drilling machining can be performed on different positions of the railway freight car center sill, and the machining efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
fig. 3 is a cross-sectional view of the present invention.
In the figure: 10. a conveying track; 11. a chip groove; 20. a carriage; 21. a conveying roller; 22. A support platform; 30. a lifting assembly; 40. a positioning assembly; 50. a screw conveyor; 61. a first processing knife; 62. a first tool holder; 63. a column; 64. a first carriage drive member; 71. a second processing knife; 72. a second tool holder; 73. a second tool holder drive.
Detailed Description
The invention will be further described with reference to the accompanying drawings and the detailed description below:
in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, 2 and 3, the numerical control drilling device for the center sill of the railway wagon comprises a machine body, a conveying frame 20, a lifting assembly 30 and a processing cutter assembly, wherein a processing station is arranged on the machine body, a conveying rail 10 is arranged at the processing station, and the bottom end of the conveying frame 20 can be in sliding fit with the conveying rail 10. The conveying frame 20 is provided with a conveying assembly and a supporting platform 22, the conveying assembly can convey the workpiece along a conveying direction, the supporting platform 22 is arranged on both sides of the conveying assembly, and when the workpiece is placed on the conveying assembly, the edge of the workpiece can be supported by the supporting platform 22.
In addition, the lifting assembly 30 is disposed on the machine body, the lifting assembly 30 and the conveying frame 20 can be distributed at intervals in the conveying direction, the lifting assembly 30 can move along the height direction of the machine body, and similarly, the lifting assembly 30 can be used for supporting the bottom end of the workpiece.
The processing cutter assembly comprises a first processing cutter 61 and a second processing cutter 71, the first processing cutter 61 is arranged on the machine body, the first processing cutter 61 is positioned above the conveying frame 20, and the first processing cutter 61 can move close to or far away from the conveying frame 20. And the second processing knife 71 is arranged on the machine body, the second processing knife 71 can be arranged at the side part of the conveying frame 20, and the second processing knife 71 can move close to or far away from the conveying frame 20.
On the basis of the structure, when the numerical control drilling device for the center sill of the railway wagon is used, the center sill of the railway wagon is placed on the conveying end face of the conveying assembly, the part, extending out of the conveying frame 20, of the center sill of the railway wagon can be supported by the lifting assembly 30, the lifting assembly 30 can move in the height direction of the machine body and is adjusted in an adaptive mode according to the height of the conveying end face of the conveying assembly and the height of the bottom end face of the center sill of the railway wagon, the lifting assembly 30 stops when moving to abut against the bottom end face of the center sill of the railway wagon, the bottom end face of the center sill of the railway wagon is stably assembled under the support of the conveying assembly and the lifting assembly 30, after the center sill of the railway wagon is placed on the conveying end face of the conveying assembly, the extending edges on the two sides of the conveying assembly can be supported by the support platforms 22 on the two sides, and the conveying structure is stable.
When carrying out railway freight car center sill and carrying, can place railway freight car center sill whole on carriage 20's conveying subassembly, then carriage 20 slides along transfer orbit 10 and can realize the transport of railway freight car center sill, and when the fine setting, then can start conveying subassembly, and conveying subassembly can carry out the position fine setting to the railway freight car center sill position on the carriage 20, need not carriage 20 moving as a whole, practices thrift power resource, and adjustable precision is higher.
Specifically, when the center sill of the railway wagon is conveyed to the machining station, the first machining cutter 61 of the machining cutter assembly can move close to the conveying frame 20 above the conveying frame 20 to drill holes above the center sill of the railway wagon on the conveying assembly, the second machining cutter 71 can move close to the conveying frame 20 on the side portion of the conveying frame 20 to drill holes on the side portion of the center sill of the railway wagon on the supporting platform 22, the automation degree is high, the drilling machining can be performed on different positions of the center sill of the railway wagon, and the machining efficiency is high.
Further, in the present embodiment, the processing tool assembly further includes a first tool post 62 and a first tool post driving member 64, the first tool post 62 is mounted above the conveying rack 20, and both sides of the first tool post 62 are mounted on both sides of the conveying track 10 through the upright posts 63, so that the first tool post 62 can cross over the conveying assembly of the conveying rack 20. And the first tool post 62 is movable in the height direction of the column 63, and the first processing blade 61 is mounted to the bottom end of the first tool post 62, i.e., the first processing blade 61 of the first tool post 62 can move toward or away from the carriage 20 during the movement of the first tool post 62.
And the first blade drive 64 can move the first blade 62 in the height direction of the column 63 to move the first processing blade 61 closer to or away from the carrier 20.
Therefore, after the center sill of the railway wagon is conveyed in place, the first tool rest 62 can be driven to move downwards through the first tool rest driving piece 64, and the first machining tool 61 at the bottom end of the first tool rest 62 can move close to the top end face of the center sill of the railway wagon on the conveying end face of the conveying assembly to drill holes above the center sill of the railway wagon.
It should be noted that the first tool post 62 may be provided with a first tool 61 rotation driving member, and the first tool post 61 may be driven by the first tool 61 rotation driving member to rotate on the first tool post 62, so as to perform rotary drilling on the center sill of the railway wagon.
The first tool carrier driving member 64 may be implemented by a cylinder or an air cylinder in the prior art, and the first processing tool 61 may be implemented by a motor in the prior art.
Further, the processing tool assembly further includes a second tool holder 72 and a second tool holder driving member 73, the second tool holder 72 is mounted on the machine body, the second tool holder 72 can be located at a side portion of the conveying frame 20, the second processing tool 71 is mounted on the second tool holder 72, and the second tool holder driving member 73 can drive the second tool holder 72 to move toward or away from the conveying frame 20.
Therefore, after the center sill of the railway wagon is conveyed to the position, the second tool rest 72 can be driven by the second tool rest driving piece 73 to move towards the conveying frame 20 at the side part of the conveying frame 20, and the second machining tool 71 at the bottom end of the second tool rest 72 can move close to the side surface of the center sill of the railway wagon on the conveying end surface of the conveying assembly to drill at the side part of the center sill of the railway wagon.
The second tool rest 72 may be provided with a second machining tool 71 rotation driving member, and the second machining tool 71 rotation driving member may drive the second machining tool 71 to rotate on the second tool rest 72, so as to perform rotary drilling on the side portion of the center sill of the railway wagon.
The second tool-carrier driving member 73 can be implemented by a cylinder or an air cylinder in the prior art, and the second machining tool 71 can be implemented by a motor in the prior art.
Of course, both the first and second working blades 61 and 71 are drill bits.
More specifically, can all be equipped with delivery track 10 and carriage 20 at organism along direction of delivery's both ends, each carriage 20 can with each delivery track 10 sliding fit, because the roof beam overall structure is generally great in railway freight car, therefore when carrying, can place the transport assembly of carriage 20 at both ends respectively with the both ends of roof beam in railway freight car, and other parts of roof beam then can be born by lifting unit 30 in railway freight car, when carrying, the carriage 20 at roof beam both ends can slide along two delivery track 10 in railway freight car, drive railway freight car roof beam moving as a whole, and when carrying out the position fine-tuning, the transport assembly also can the synchronous operation on two carriages 20, both ends remove simultaneously, the removal process is more smooth and easy, and more laborsaving.
Further, in this embodiment, the machine body is further provided with a positioning assembly 40, and the positioning assembly 40 may be located between the two conveying tracks 10 and used for positioning the workpiece. The positioning assembly 40 can be specifically including locating rack and location clamping jaw, the lateral part of delivery track 10 can be located to the locating rack, the location clamping jaw is installed on the locating rack, the location clamping jaw can be close to or keep away from the work piece motion, the back that targets in place is carried through conveying assembly to the roof beam in railway freight car, can be close to railway freight car middle-axle beam motion through the location clamping jaw, the location clamping jaw alright support tightly at railway freight car middle-axle beam lateral part, fix a position it, prevent that railway freight car middle-axle beam from shifting about appearing in the course of working, the course of working is more stable.
Furthermore, a chip groove 11 can be further arranged on the conveying track 10, the chip groove 11 extends along the conveying direction and is located below the conveying frame 20 to receive processing scraps, namely, when processing is carried out, the scraps generated in the processing process of the middle beam of the railway wagon on the conveying frame 20 can be received by the chip groove 11 and then are processed in a centralized manner, so that the phenomenon that the conveying frame 20 is jammed in the sliding process due to falling onto the conveying track 10 is reduced.
More specifically, a spiral conveyor 50 may be further disposed in the chip discharge groove 11, and when the chips in the processing process are collected in the chip discharge groove 11, the spiral conveyor 50 may be started to spirally output the chips in the chip discharge groove 11, so as to facilitate timely discharge of the chips.
Further, the conveying assembly in this embodiment includes a plurality of conveying rollers 21 and a conveying roller 21 driving piece, and a plurality of conveying rollers 21 pin joint is on carriage 20 to interval distribution in the direction of delivery, specific conveying roller 21 driving piece can drive conveying roller 21 and rotate, when carrying out railway freight car center sill and carry, railway freight car center sill can place on a plurality of conveying rollers 21, and conveying roller 21 driving piece can drive conveying roller 21 and rotate, realizes the transport to railway freight car center sill.
Of course, the conveying roller 21 may be selected as a motorized roller in the prior art, and the power of the motorized roller is formed as a driving member of the conveying roller 21. Under other circumstances, motor and hold-in range can also be chooseed for use to the conveying roller 21 driving piece, and the hold-in range is synchronous around locating a plurality of conveying rollers 21, and the motor drives one of them conveying roller 21 and rotates can.
Further, above-mentioned lifting unit 30 includes lift roller, mounting bracket and lift roller driving piece, installs the mounting bracket on the organism, can with the lift roller pin joint on the mounting bracket, the direction of height motion of mounting bracket can be followed to the lift roller, and the lift roller driving piece can drive the lift roller up-and-down motion.
On this structure basis, when carrying out rail wagon center sill and carry, the bottom of rail wagon center sill can be by the lifting roller bearing, and the lifting roller can be through the pivot pin joint on the mounting bracket, and the lifting roller can cooperate with the rail wagon center sill in transportation process and the cooperation of lifting roller roll, and rail wagon center sill transportation process is more smooth and easy. The lifting roller can move up and down under the driving of the lifting roller driving piece, and is suitable for the thickness of the middle beam of the railway wagon with different thicknesses and the conveying end face of the conveying assembly.
The specific lifting roller driving piece can be realized by structures such as a driving oil cylinder or an air cylinder in the prior art.
Furthermore, a plurality of lifting assemblies 30 are arranged on the machine body, the plurality of lifting assemblies 30 are distributed at intervals in the conveying direction, namely the lifting rollers of the plurality of lifting assemblies 30 can support the middle beam of the railway wagon in a segmented mode in the conveying direction, the lifting rollers are matched with the middle beam of the railway wagon in a rolling mode in different positions, and the conveying process is more labor-saving.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (10)
1. A numerical control drilling device for a center sill of a railway wagon is characterized by comprising,
the machine body is provided with a processing station; a conveying rail is arranged at the processing station;
the bottom end of the conveying frame is in sliding fit with the conveying track; the conveying frame is provided with a conveying assembly and a supporting platform, and the conveying assembly is used for conveying workpieces along a conveying direction; the supporting platforms are positioned at two sides of the conveying assembly and used for supporting the edge of the workpiece;
the lifting component is arranged on the machine body; the lifting assembly and the conveying frame are distributed at intervals in the conveying direction; the lifting component can move along the height direction of the machine body and is used for supporting the bottom end of the workpiece;
the processing cutter assembly comprises a first processing cutter and a second processing cutter, and the first processing cutter is arranged on the machine body and positioned above the conveying frame; the first processing knife can move close to or far away from the conveying frame; the second processing cutter is arranged on the machine body and positioned on the side part of the conveying frame; the second processing knife may be moved closer to or farther from the carriage.
2. The numerical control drilling device for the center sill of the railway wagon as claimed in claim 1, wherein the processing cutter assembly further comprises a first cutter frame and a first cutter frame driving member, and the first cutter frame is mounted above the conveying frame; two sides of the first tool rest are arranged on two sides of the conveying track through the upright post, and the first tool rest can move along the height direction of the upright post; the first processing cutter is arranged at the bottom end of the first cutter rest; the first cutter frame driving piece is used for driving the first cutter frame to move along the height direction of the upright column so as to enable the first processing cutter to move close to or far away from the conveying frame.
3. The numerical control drilling device for the center sill of the railway wagon as claimed in claim 1, wherein the machining tool assembly further comprises a second tool rest mounted on the machine body and located at the side of the conveying frame, and a second tool rest driving member, the second machining tool being mounted on the second tool rest; the second tool rest driving piece is used for driving the second tool rest to move close to or far away from the conveying frame.
4. The numerical control drilling device for the center sill of the railway wagon as claimed in claim 1, wherein the first machining cutter and the second machining cutter are drill bits.
5. The numerical control drilling device for the center sill of the railway wagon as claimed in claim 1, wherein the conveying rail and the conveying frame are arranged at both ends of the machine body in the conveying direction; and the machine body is provided with a positioning assembly, and the positioning assembly is positioned between the two conveying rails and is used for positioning the workpiece.
6. The numerical control drilling device for the center sill of the railway wagon as claimed in any one of claims 1 to 5, wherein a chip discharge groove is formed on the conveying rail, extends along the conveying direction, and is positioned below the conveying frame to receive machining chips; and a spiral conveyor is arranged in the chip groove.
7. The numerical control drilling device for the center sill of the railway wagon as claimed in any one of claims 1 to 5, wherein the conveying assembly comprises a plurality of conveying rollers and a conveying roller driving member for driving the conveying rollers to rotate.
8. The numerical control drilling device for the center sill of the railway wagon as claimed in any one of claims 1 to 5, wherein the lifting assembly comprises a lifting roller, a mounting frame and a lifting roller driving member, the mounting frame is mounted on the machine body, the lifting roller is pivoted on the mounting frame and can move along the height direction of the mounting frame, and the lifting roller driving member is used for driving the lifting roller to move up and down.
9. A numerically controlled drilling device for a center sill of a railway wagon as claimed in claim 8, wherein a plurality of said lifting assemblies are provided on said machine body, and are spaced apart in said conveying direction.
10. The numerical control drilling device for the center sill of the railway wagon as claimed in any one of claims 1 to 5, wherein the bottom end of the carriage is provided with a driving wheel and a driving wheel driving member, the driving wheel is pivotally connected to the bottom end of the carriage, and the driving wheel driving member is used for driving the driving wheel to rotate so as to drive the carriage to slide on the conveying track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584469.9A CN115647422A (en) | 2022-05-27 | 2022-05-27 | Numerical control drilling device for center sill of railway wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584469.9A CN115647422A (en) | 2022-05-27 | 2022-05-27 | Numerical control drilling device for center sill of railway wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115647422A true CN115647422A (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210584469.9A Pending CN115647422A (en) | 2022-05-27 | 2022-05-27 | Numerical control drilling device for center sill of railway wagon |
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| Country | Link |
|---|---|
| CN (1) | CN115647422A (en) |
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| CN112249595A (en) * | 2020-10-30 | 2021-01-22 | 中车长江车辆有限公司 | Railway freight car center sill transition device |
| CN212682215U (en) * | 2020-06-08 | 2021-03-12 | 盘起工业(大连)有限公司 | Conveying mechanism and metal plate die comprising same |
| CN212711319U (en) * | 2020-07-15 | 2021-03-16 | 湖北锐诚真空科技有限公司 | Vacuum box adds material feeding unit |
| CN112719359A (en) * | 2021-01-12 | 2021-04-30 | 中车眉山车辆有限公司 | Flexible universal railway wagon center sill slave plate seat hole machining device and method |
| CN216264214U (en) * | 2021-11-25 | 2022-04-12 | 株洲中车特种装备科技有限公司 | Center sill welding system |
-
2022
- 2022-05-27 CN CN202210584469.9A patent/CN115647422A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004338920A (en) * | 2003-05-19 | 2004-12-02 | Fujitsu Ltd | Conveyance mechanism |
| CN201799648U (en) * | 2010-08-03 | 2011-04-20 | 沈阳兴业机床有限公司 | Numerical control middle beam combined drilling machine |
| CN102583004A (en) * | 2012-03-09 | 2012-07-18 | 无锡市顺达物流涂装设备有限公司 | Heavy belt-type movement machine |
| CN203343729U (en) * | 2013-06-07 | 2013-12-18 | 杭州大天数控机床有限公司 | Numerically-controlled gantry vertical-and-horizontal compound machining center with tool magazines and main shafts compounded on saddles |
| CN208394222U (en) * | 2018-05-29 | 2019-01-18 | 佛山市三水粤山装饰实业有限公司 | A kind of feeding mechanism for presser device |
| CN212682215U (en) * | 2020-06-08 | 2021-03-12 | 盘起工业(大连)有限公司 | Conveying mechanism and metal plate die comprising same |
| CN212711319U (en) * | 2020-07-15 | 2021-03-16 | 湖北锐诚真空科技有限公司 | Vacuum box adds material feeding unit |
| CN112249595A (en) * | 2020-10-30 | 2021-01-22 | 中车长江车辆有限公司 | Railway freight car center sill transition device |
| CN112719359A (en) * | 2021-01-12 | 2021-04-30 | 中车眉山车辆有限公司 | Flexible universal railway wagon center sill slave plate seat hole machining device and method |
| CN216264214U (en) * | 2021-11-25 | 2022-04-12 | 株洲中车特种装备科技有限公司 | Center sill welding system |
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