CN110774003A - Low-cost high-effect hot rolling rail integration mills and bores equipment - Google Patents
Low-cost high-effect hot rolling rail integration mills and bores equipment Download PDFInfo
- Publication number
- CN110774003A CN110774003A CN201911198179.5A CN201911198179A CN110774003A CN 110774003 A CN110774003 A CN 110774003A CN 201911198179 A CN201911198179 A CN 201911198179A CN 110774003 A CN110774003 A CN 110774003A
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- 238000005098 hot rolling Methods 0.000 title abstract description 5
- 230000010354 integration Effects 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 238000003801 milling Methods 0.000 claims abstract description 83
- 238000003825 pressing Methods 0.000 claims abstract description 51
- 238000005553 drilling Methods 0.000 claims abstract description 30
- 238000009826 distribution Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000005520 cutting process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling And Boring (AREA)
Abstract
The utility model provides a high-efficient hot rolling rail of low-cost integrative milling and drilling equipment, includes that portal frame presses rail positioning mechanism, cutter head mechanism, gang drill mechanism, cutter head mechanism and gang drill mechanism set up respectively in portal frame pressure rail positioning mechanism's both sides, and the hot rolling rail is pressed rail positioning mechanism along the portal frame and is vertically passed. The invention can be installed on a steel rail production line, the whole hot-rolled steel rail arrives at a milling and drilling station from a feeding roller way, and as three sets of pressing devices respectively press the steel rail in the middle and at two sides of a cutting part at the same time, even if a disc milling cutter cuts off the steel rail, the steel rail cannot be loosened to influence drilling; the two sets of lateral pressing devices enable the bottom plate of the steel rail to lean against the positioning surface, and perpendicularity between the cut surface and the hole and the steel rail is guaranteed; and the connecting holes at the ends of the two rails are also processed while the rails are cut off. According to different types of steel rails or non-standard hole rails, the requirements of different hole positions and hole diameters are met by adjusting the wheelbase of the gang drill and the diameter of a drill bit.
Description
Technical Field
The invention relates to the field of hot-rolled steel rail production, in particular to low-cost high-efficiency hot-rolled steel rail integrated milling and drilling equipment, which is specially used for equipment for milling end heads and processing end connecting holes of hot-rolled steel rails.
Background
The hot-rolled steel rail is formed by one-time hot rolling of steel billets, the steel billets are rolled into a material through a primary rolling mill and a finishing mill after being heated, the length of a single finished material can reach 70-100 meters generally, and the single finished material is conveyed to a cooling bed through an outlet roller way of the finishing mill for slow cooling or is subjected to on-line heat treatment and then is subjected to straightening, flaw detection and sizing cutting. According to the application, the steel rails are divided into inner steel rails and outer steel rails; according to the connection mode, the steel rail is divided into a welded rail and a hole rail. With the rapid development of related technologies of railways in China, hole rails are gradually replaced by welded rails in steel rails in a line, and the running speed and the stability of a train are improved by adopting a connection mode of the welded rails. Even so, the usage amount of the hole rails is still large, for example, the production and operation of enterprises such as large steel mills, power plants, mining industries and the like can not leave a railway network, and in-plant railways need to be laid. The design requirements of general railways outside the lines are not high, the bearing is not large, the running speed is low, the steel rail usually adopts a hole rail, the two hole rails are connected through a fishplate and a bolt, the construction is convenient, and the construction cost is far lower than the rail welding cost. The hot rolled steel rail for factories and mines is more than 43kg/m and 38kg/m, the length specification is more, the length is less than or equal to 12.5m, and the precision of connecting holes is higher, so that the workload of milling heads and drilling holes of hot rolled steel rail enterprises is large, the production efficiency is low, and the national large-scale steel rail enterprises are not willing to produce the products. For small and medium-sized section steel production enterprises with the capability of producing, the hole rail milling and drilling process is also a bottleneck for improving the production efficiency, and cannot follow the production rhythm of steel rolling, so that the production of a single process lags.
In order to solve the technical problems, special steel rail milling and drilling equipment is imported in the market at present, the end milling and drilling work of the hot-rolled steel rail can be finished, and the requirements of production progress can be met after a certain amount of equipment is equipped. However, the imported milling and drilling equipment has the problems of high price, high price of equipment accessories and consumables, no substitute and the like, is not beneficial to popularization, and is only purchased by large-scale steel enterprises in several countries in China; the production of the line outer hole rail is almost completed in small and medium-sized section bar production enterprises, and the investment of the equipment is too much; the market for such specialized equipment is small and equipment manufacturers are reluctant to develop it.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide low-cost high-efficiency hot-rolled steel rail integrated milling and drilling equipment which can be arranged on a steel rail production line, wherein the whole hot-rolled steel rail reaches a milling and drilling station from a feeding roller way; the two sets of lateral pressing devices enable the bottom plate of the steel rail to lean against the positioning surface, and perpendicularity between the cut surface and the hole and the steel rail is guaranteed; and the connecting holes at the ends of the two rails are also processed while the rails are cut off. According to different types of steel rails or non-standard hole rails, the requirements of different hole positions and hole diameters are met by adjusting the wheelbase of the gang drill and the diameter of a drill bit.
In order to achieve the purpose, the invention adopts the following technical scheme:
the integrated milling and drilling equipment for the low-cost and high-efficiency hot-rolled steel rail comprises a portal frame rail pressing mechanism, a milling head mechanism and a gang drill mechanism, wherein the milling head mechanism and the gang drill mechanism are respectively arranged on two sides of the portal frame rail pressing mechanism, and the hot-rolled steel rail longitudinally penetrates through the portal frame rail pressing mechanism.
The portal frame rail pressing mechanism comprises a portal frame and a pressing oil cylinder, the pressing oil cylinder is arranged at the upper end of the portal frame, an opening is formed in a pressure head of the pressing oil cylinder, and when a steel rail milling head is milled, a disc milling cutter of the milling head mechanism penetrates through the opening in the pressure head of the pressing oil cylinder.
The number of the pressing oil cylinders is three, and the disc milling cutter of the milling head mechanism corresponds to the position of the pressing oil cylinder at the middle position.
The lateral pressing oil cylinders are arranged on two sides of the gang drill mechanism and used for laterally clamping the steel rail.
The milling head mechanism comprises a disc milling cutter, a disc milling gearbox, a motor, a machine tool feeding oil cylinder and a disc milling base, the disc milling cutter, the disc milling gearbox and the motor are in sliding connection with the disc milling base through a sliding rail, and the machine tool feeding oil cylinder drives the disc milling cutter, the disc milling gearbox and the motor to reciprocate.
The multi-drill mechanism comprises a multi-drill motor, a multi-drill distribution box, a multi-drill universal transmission shaft, a multi-drill assembly, a multi-drill feeding oil cylinder and a multi-drill distribution box base, wherein the multi-drill motor, the multi-drill distribution box, the multi-drill universal transmission shaft and the multi-drill assembly are arranged on the same frame and are in sliding connection with the multi-drill distribution box base, and the multi-drill feeding oil cylinder drives the multi-drill motor, the multi-drill distribution box, the multi-drill universal transmission shaft and the multi-drill assembly to run in a reciprocating mode; the multi-drill motor is connected with a plurality of multi-drill universal transmission shafts through the multi-drill distribution box to drive the multi-drill assembly.
The group drill assembly comprises a support and drill bits, wherein a transverse long hole is formed in the support, and the drill bits are connected into the long hole in the support through bolts.
Compared with the prior art, the invention has the beneficial effects that:
a low-cost high-efficiency hot-rolled steel rail integrated milling and drilling device can be installed on a steel rail production line, the whole hot-rolled steel rail reaches a milling and drilling station from a feeding roller way, and as three sets of pressing devices respectively press the steel rail in the middle and at two sides of a cutting part at the same time, even if a disc milling cutter cuts off the steel rail firstly, the steel rail cannot be loosened to influence drilling; the two sets of lateral pressing devices enable the bottom plate of the steel rail to lean against the positioning surface, and perpendicularity between the cut surface and the hole and the steel rail is guaranteed; and the connecting holes at the ends of the two rails are also processed while the rails are cut off. According to different types of steel rails or non-standard hole rails, the requirements of different hole positions and hole diameters are met by adjusting the wheelbase of the gang drill and the diameter of a drill bit.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a side view of the gantry rail pressing mechanism of the present invention.
Fig. 4 is a plan view of the present invention on a rail production line.
In the figure: the automatic drilling machine comprises a 1-group drill distribution box, a 2-group drill feeding oil cylinder, a 3-group drill motor, a 4-group drill distribution box base, a 5-group drill universal transmission shaft, a 6-group drill assembly, a 7-lateral pressing oil cylinder, an 8-lathe bed support, a 9-pressing oil cylinder, a 10-disc milling cutter, an 11-disc milling base, a 12-disc milling gearbox, a 13-machine tool base, a 14-motor, a 15-machine tool feeding oil cylinder, a 16-material supporting guide roller, 17-integrated milling and drilling equipment, an 18-conveying roller bed, a 19-hydraulic station, a 20-portal frame and a 21-infrared photoelectric sensor.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
referring to fig. 1-4, the integrated milling and drilling equipment for the low-cost and high-efficiency hot-rolled steel rail comprises a portal frame rail pressing mechanism, a milling head mechanism and a gang drill mechanism, wherein the milling head mechanism and the gang drill mechanism are respectively arranged on two sides of the portal frame rail pressing mechanism, and the hot-rolled steel rail longitudinally penetrates through the portal frame rail pressing mechanism.
The portal frame rail pressing mechanism comprises a portal frame 20 and a pressing oil cylinder 9, wherein the pressing oil cylinder 9 is arranged at the upper end of the portal frame 20, an opening is formed in a pressure head of the pressing oil cylinder 9, and when a steel rail is milled, a disc milling cutter 10 of the milling head mechanism penetrates through the opening in the pressure head of the pressing oil cylinder 9.
The number of the pressing oil cylinders 9 is three, and the disc milling cutter 10 of the milling head mechanism corresponds to the position of the pressing oil cylinder 9 at the middle position.
The steel rail lateral clamping device is characterized by further comprising lateral pressing oil cylinders 7, a support is fixed on a rack on one side, provided with the multi-drill mechanism, of the portal frame 20, the lateral pressing oil cylinders 7 are mounted on the support, and the lateral pressing oil cylinders 7 are mounted on two sides of the multi-drill mechanism and used for laterally clamping steel rails.
The milling head mechanism comprises a disc milling cutter 10, a disc milling gearbox 12, a motor 14, a machine tool feeding oil cylinder 15 and a disc milling base 11, the disc milling cutter 10, the disc milling gearbox 12 and the motor 14 are installed on the same rack and are in sliding connection with the disc milling base 11 through sliding rails, the machine tool feeding oil cylinder 15 is arranged on the disc milling base 11 and drives the disc milling cutter 10, the disc milling gearbox 12 and the motor 14 to reciprocate, and the motor 14 and the disc milling gearbox 12 drive the disc milling cutter 10 to rotate.
The multi-drill mechanism comprises a multi-drill motor 3, a multi-drill distribution box 1, a multi-drill universal transmission shaft 5, a multi-drill assembly 6, a multi-drill feeding oil cylinder 2 and a multi-drill distribution box base 4, wherein the multi-drill motor 3, the multi-drill distribution box 1, the multi-drill universal transmission shaft 5 and the multi-drill assembly 6 are installed on the same rack and are in sliding connection with the multi-drill distribution box base 4 through sliding rails, and the multi-drill feeding oil cylinder 2 is arranged in the disc milling base 4 and drives the multi-drill motor 3, the multi-drill distribution box 1, the multi-drill universal transmission shaft 5 and the multi-drill assembly 6 to run in a reciprocating mode; the multi-drill motor 3 is connected with a plurality of multi-drill universal transmission shafts 5 through the multi-drill distribution box 1 to drive the multi-drill assembly 6. The multi-drill distribution box 1 is a gear distribution box, and the power of a multi-drill motor 3 is transmitted to a plurality of multi-drill universal transmission shafts 5 through gear distribution.
The multi-drill assembly 6 comprises a support and drill bits, wherein the support is provided with a transverse long hole, and a plurality of drill bits are connected in the long hole on the support through bolts.
The main body of the equipment is arranged in the middle of a conveying roller way 18 and is fixed through foundation bolts; the hydraulic system comprises a hydraulic station 19, a pressing-down oil cylinder 9 and a lateral pressing oil cylinder 7, wherein the hydraulic station 19 is arranged on one side of the equipment main body and is connected with the oil cylinders through high-pressure oil pipes; the infrared photoelectric sensor 21 is arranged on one side of the conveying roller way 18 and is opposite to the rail web position of the steel rail.
The portal frame 20 of the invention is longitudinally arranged along the conveying direction of the steel rail, the two ends of the portal frame 20 are provided with the material supporting guide rollers 16, and the steel rail is conveyed to the material supporting guide rollers 16 through the conveying roller table 18 and enters the portal frame 20. Three pressing cylinders 9 are arranged on the portal frame 21 at equal intervals, the steel rail is pressed and positioned from the upper end, and an opening is arranged at the axis position of a pressing head of each pressing cylinder 9. When milling the head, the disc cutter 10 saws the rail from the opening of the ram at the center. Meanwhile, the group drilling mechanism performs drilling operation on two sides of the sawing end of the steel rail. The invention can realize the operations of sawing, milling head and drilling of the steel rail at the same time, and has high processing precision and stable equipment operation.
The invention provides a low-cost and high-efficiency special processing device for hot-rolled steel rails, which is provided with a hydraulic system, has a simple structure and can be installed on steel rail production lines, wherein the number of the devices arranged on each production line is determined by the total length of a single rolled steel rail and the length of a single finished product, for example, 12.5m hole rails are planned to be produced, the length of a single rolled steel rail is 75m, 7 devices are arranged on one production line, and 6 steel rails can be processed at one time by adopting a linkage mode. After ultrasonic flaw detection is carried out on the whole hot-rolled steel rail, the whole hot-rolled steel rail reaches a milling and drilling station through a conveying roller way 18, an infrared photoelectric sensor 21 identifies that the steel rail reaches a specified position, a signal is sent to an electric control system, the electric control system controls the power supply of the roller way to be turned off, the conveying roller way 18 stops running, commands are sent to a hydraulic station and a hydraulic valve at the same time, the oil cylinder 9 is pressed down to compress the steel rail, and a disc milling cutter 10 and a gang drill assembly 6 act simultaneously; because the three sets of pressing cylinders 9 respectively press the steel rails in the middle and on two sides of the cutting part at the same time, even if the disc milling cutter 10 cuts off the steel rails firstly, the steel rails cannot be loosened to influence drilling; two sets of lateral pressing oil cylinders 7 press the bottom plate of the steel rail against the positioning surface of the portal frame, so that the verticality of the cut surface and the hole with the steel rail is ensured; each device is provided with two sets of multi-drill assemblies 6, each set of multi-drill assembly 6 can drill 3 holes simultaneously, and the connecting holes at the end parts of two steel rails are also machined when the steel rails are cut off. According to different types of steel rails or non-standard hole rails, the requirements of different hole positions and hole diameters are met by adjusting the wheelbase of the gang drill and the diameter of a drill bit.
Claims (7)
1. The integrated milling and drilling equipment for the low-cost and high-efficiency hot-rolled steel rail is characterized by comprising a portal frame rail pressing mechanism, a milling head mechanism and a gang drill mechanism, wherein the milling head mechanism and the gang drill mechanism are respectively arranged on two sides of the portal frame rail pressing mechanism, and the hot-rolled steel rail longitudinally penetrates through the portal frame rail pressing mechanism.
2. The integrated milling and drilling equipment for the low-cost high-efficiency hot-rolled steel rail as claimed in claim 1, wherein the gantry rail pressing mechanism comprises a gantry and a pressing cylinder, the pressing cylinder is arranged at the upper end of the gantry, an opening is formed in a pressing head of the pressing cylinder, and a disc milling cutter of the milling head mechanism penetrates through the opening in the pressing head of the pressing cylinder when a steel rail is milled.
3. The integrated milling and drilling equipment for the low-cost high-efficiency hot-rolled steel rail as claimed in claim 2, wherein the number of the screw-down cylinders is three, and the disc milling cutter of the milling head mechanism corresponds to the position of the screw-down cylinder at the middle position.
4. The integrated milling and drilling equipment for the low-cost high-efficiency hot-rolled steel rail as claimed in claim 2, further comprising lateral pressing cylinders, wherein a support is fixed on a rack on one side of the portal frame where the gang drill mechanism is arranged, the lateral pressing cylinders are mounted on the support, and the lateral pressing cylinders are mounted on two sides of the gang drill mechanism and used for laterally clamping the steel rail.
5. The integrated milling and drilling equipment for the low-cost high-efficiency hot-rolled steel rail as claimed in claim 1, wherein the milling head mechanism comprises a disc milling cutter, a disc milling gearbox, a motor, a machine tool feeding oil cylinder and a disc milling base, the disc milling cutter, the disc milling gearbox and the motor are slidably connected with the disc milling base through slide rails, and the machine tool feeding oil cylinder drives the disc milling cutter, the disc milling gearbox and the motor to reciprocate.
6. The integrated milling and drilling equipment for the low-cost high-efficiency hot-rolled steel rail according to claim 1, wherein the multi-drill mechanism comprises a multi-drill motor, a multi-drill distribution box, a multi-drill universal transmission shaft, a multi-drill assembly, a multi-drill feed cylinder and a multi-drill distribution box base, the multi-drill motor, the multi-drill distribution box, the multi-drill universal transmission shaft and the multi-drill assembly are mounted on the same frame and are in sliding connection with the multi-drill distribution box base, and the multi-drill feed cylinder drives the multi-drill motor, the multi-drill distribution box, the multi-drill universal transmission shaft and the multi-drill assembly to reciprocate; the multi-drill motor is connected with a plurality of multi-drill universal transmission shafts through the multi-drill distribution box to drive the multi-drill assembly.
7. The integrated milling and drilling equipment for the low-cost high-efficiency hot-rolled steel rail as claimed in claim 1, wherein the gang drill assembly comprises a support and drill bits, a transverse long hole is formed in the support, and the drill bits are connected in the long hole in the support through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198179.5A CN110774003A (en) | 2019-11-29 | 2019-11-29 | Low-cost high-effect hot rolling rail integration mills and bores equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198179.5A CN110774003A (en) | 2019-11-29 | 2019-11-29 | Low-cost high-effect hot rolling rail integration mills and bores equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110774003A true CN110774003A (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911198179.5A Pending CN110774003A (en) | 2019-11-29 | 2019-11-29 | Low-cost high-effect hot rolling rail integration mills and bores equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN110774003A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793092A (en) * | 2021-01-29 | 2021-05-14 | 广东格林精密部件股份有限公司 | Automatic equipment for synchronously drilling and milling multiple water gaps of multiple spherical products |
| CN113417178A (en) * | 2021-07-27 | 2021-09-21 | 中铁物总资源科技有限公司 | Multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1288129A (en) * | 1961-02-07 | 1962-03-24 | L Abbaye Atel Const | Rail machining machine |
| CZ2009410A3 (en) * | 2009-06-26 | 2011-01-05 | Tm Jesenice Servis, Spol. S R. O. | Device for severing rails by complex cut |
| CN104440104A (en) * | 2014-11-24 | 2015-03-25 | 山东蒙沃变速器有限公司 | Set drilling and set tapping device for hole systems of two faces of transmission housing |
| CN207013754U (en) * | 2017-07-05 | 2018-02-16 | 上海宝冶集团有限公司 | Auxiliary stand for drilling of the rail operation |
| CN207616092U (en) * | 2017-10-23 | 2018-07-17 | 唐山钢铁集团有限责任公司 | A kind of light rail milling brill all-in-one machine |
| CN209175263U (en) * | 2018-12-24 | 2019-07-30 | 泉州市禾力机械制造有限公司 | All-in-one machine is bored in Supporting cover milling |
| CN209175259U (en) * | 2018-11-08 | 2019-07-30 | 山东法因智能设备有限公司 | A kind of device of steel rail web drilling and milling |
| CN211332141U (en) * | 2019-11-29 | 2020-08-25 | 鞍山紫竹科技型钢有限公司 | Low-cost high-effect hot rolling rail integration mills and bores equipment |
-
2019
- 2019-11-29 CN CN201911198179.5A patent/CN110774003A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1288129A (en) * | 1961-02-07 | 1962-03-24 | L Abbaye Atel Const | Rail machining machine |
| CZ2009410A3 (en) * | 2009-06-26 | 2011-01-05 | Tm Jesenice Servis, Spol. S R. O. | Device for severing rails by complex cut |
| CN104440104A (en) * | 2014-11-24 | 2015-03-25 | 山东蒙沃变速器有限公司 | Set drilling and set tapping device for hole systems of two faces of transmission housing |
| CN207013754U (en) * | 2017-07-05 | 2018-02-16 | 上海宝冶集团有限公司 | Auxiliary stand for drilling of the rail operation |
| CN207616092U (en) * | 2017-10-23 | 2018-07-17 | 唐山钢铁集团有限责任公司 | A kind of light rail milling brill all-in-one machine |
| CN209175259U (en) * | 2018-11-08 | 2019-07-30 | 山东法因智能设备有限公司 | A kind of device of steel rail web drilling and milling |
| CN209175263U (en) * | 2018-12-24 | 2019-07-30 | 泉州市禾力机械制造有限公司 | All-in-one machine is bored in Supporting cover milling |
| CN211332141U (en) * | 2019-11-29 | 2020-08-25 | 鞍山紫竹科技型钢有限公司 | Low-cost high-effect hot rolling rail integration mills and bores equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793092A (en) * | 2021-01-29 | 2021-05-14 | 广东格林精密部件股份有限公司 | Automatic equipment for synchronously drilling and milling multiple water gaps of multiple spherical products |
| CN113417178A (en) * | 2021-07-27 | 2021-09-21 | 中铁物总资源科技有限公司 | Multi-degree-of-freedom porous drilling method applied to railway waste steel rail repair |
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