CN212426575U - Steel rail is to rail mechanism - Google Patents
Steel rail is to rail mechanism Download PDFInfo
- Publication number
- CN212426575U CN212426575U CN201921155299.2U CN201921155299U CN212426575U CN 212426575 U CN212426575 U CN 212426575U CN 201921155299 U CN201921155299 U CN 201921155299U CN 212426575 U CN212426575 U CN 212426575U
- Authority
- CN
- China
- Prior art keywords
- rail
- steel
- scanning
- guide frame
- torsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Laser Beam Processing (AREA)
Abstract
The invention provides a rail-to-rail mechanism, which comprises a rail profile scanning component (1) and a rail posture adjusting mechanism, and is characterized in that: the steel rail profile scanning assembly (1) comprises a scanning control system, wherein the scanning control system comprises at least three laser profile scanning sensors (101) which are respectively arranged at the top of the steel rail and on two sides of the steel rail, the scanning sensors are connected to a scanning sensor moving device, and the scanning sensor moving device moves in a +/-500 mm range of a steel rail joint along a direction parallel to the steel rail so as to scan the positions and profiles of two sections of steel rails to be welded.
Description
Technical Field
The invention relates to a rail-to-rail mechanism for steel rails, and belongs to the technical field of engineering equipment.
Background
At present, rail clamping capacity of rail welding equipment widely used on a railway is up to 300 tons, and the alignment working principle of a steel rail is that a clamp is designed into a positioning die with high precision by utilizing the characteristic. Under the action of the clamping force, the two sections of steel rails are tightly attached to the clamping die, and the steel rails are aligned according to the precision of the clamping die. Due to the characteristic, the existing rail welding equipment has no function of adjusting the position of the steel rail and can only align the center of the steel rail. When the positioning grinding tool is worn, the rigidity of the welding machine body is reduced, the profiles of the two steel rails are inconsistent, the new and old steel rails are welded, and the alignment reference of the steel rails is changed into the working edge, the top surface of the steel rail and the bottom surface of the steel rail. The traditional rail welding equipment has quite complicated rail alignment process, the clamping die is replaced, and a gasket is added between the steel rail and the clamping die for adjustment. The attempt is repeated until qualified.
The utility model discloses a utility model patent that publication number is CN 201473841U discloses a rail butt welder according to rail work limit centre gripping alignment, and this welding machine only has rail lateral adjustment function, lacks the rail vertical, and transversely twists reverse the function. And the steel rail is aligned by the notch on the box body. Because no measuring system is provided, the steel rail adjusting system is single, and only the alignment of the working edge of the steel rail can be carried out. The center of the steel rail is lacked, and the bottom edge of the steel rail is aligned. The new and old rails cannot be aligned. The use function is limited.
Disclosure of Invention
The invention provides a rail-to-rail mechanism, which comprises a rail profile scanning component and a rail posture adjusting mechanism, wherein the rail profile scanning component is connected with and communicated with the rail posture adjusting mechanism so as to control the rail posture adjusting mechanism to act according to the scanning result of the rail profile scanning component, and the rail alignment rules of two sections of rails (7) to be welded are selected according to the position and profile data of the rails (7) scanned by the rail profile scanning component (1). Such as rail center alignment (8), rail bottom alignment (9), rail top alignment (10), rail right working edge alignment (11), or rail left working edge alignment (12).
The rail-to-rail mechanism of the invention does not need to change the structure of the welding machine or the structure of a rail clamping die of the welding machine. Meanwhile, the rail is not aligned by a rail clamping die. Therefore, the rail clamping die has no precision requirement, so that the service life of the rail clamping die is prolonged.
Preferably, the rail profile scanning assembly comprises a scanning control system, the scanning control system comprises at least three laser scanning sensors which are respectively arranged at the top of the rail and at two sides of the rail, the scanning sensors are connected to a scanning sensor moving device, and the scanning sensor moving device moves within a range of +/-500 mm at the joint of the rail along a direction parallel to the rail so as to scan the positions and the profiles of the two sections of rails to be welded. And calculating the straightness and dislocation of the steel rail according to the scanning result. And outputting the steel rail position adjusting value to the adjusting mechanism according to the selected alignment standard. And simultaneously judging whether the steel rail alignment meets the requirements.
More preferably, the scanning control system comprises a 3D scanning measurement and control system, and the 3D scanning measurement and control system is connected to and controls the rail attitude adjusting mechanism.
The 3D scanning measurement and control system uses a laser profile sensor as a working element, and the laser profile sensor is arranged at the joint of two steel rails and moves and scans along the direction of the steel rails.
Preferably, the rail posture adjusting mechanism is provided between the rail clamping mechanism and the upsetting mechanism.
More preferably, the rail attitude adjusting mechanism is fixed to an upsetting mechanism (e.g., an upsetting cylinder rod, a frame of the upsetting mechanism), and the rail clamping mechanism of the welding machine is placed on the rail attitude adjusting mechanism; the steel rail posture adjusting mechanism drags the rail clamping mechanism to move together with the steel rail, and finally the steel rail adjusting function is achieved.
Preferably, the steel rail posture adjusting mechanism comprises three freedom degree adjusting functions of steel rail transverse adjustment, transverse torsion and vertical adjustment.
Preferably, the steel rail posture adjusting mechanism comprises a steel rail torsion adjusting mechanism (2), a rail transverse adjusting mechanism (3) and a steel rail vertical adjusting mechanism (4).
Preferably, the rail profile scanning assembly (1) comprises three laser profile scanning sensors (101) fixed on a scanning sensor moving device (102).
The laser profile scanning sensors (101) are respectively arranged on the top surface of the rail and two side edges of the rail. The scanning sensor moving device (102) is fixed to the outer case (402). The scanning sensor moving device (102) drives the laser scanning sensor (101) to move in the direction parallel to the steel rail (7) to scan and acquire the position and profile data of the two sections of steel rails. Meanwhile, the device can be stopped at the joint of two steel rails, and the steel rail alignment result can be monitored in real time. And feeding the result back to the steel rail posture adjusting mechanism. Until the steel rail is aligned to meet the requirement.
The steel rail torsion adjusting mechanism (2) comprises a rotating shaft (201) and a torsion guide frame (202), a rail clamping mechanism (5) of the rail welding equipment is connected with the torsion guide frame (202) through the rotating shaft (201), the fixed end of the torsion adjusting device (203) is installed on the torsion guide frame (202), the movable end of the torsion adjusting device (203) pushes the rail clamping mechanism (5) to achieve rotation adjustment of the end of the rail clamping mechanism (5), and then the rail clamping mechanism drives the steel rail (7) to achieve torsion adjustment of the steel rail.
The steel rail transverse adjusting mechanism (3) comprises a transverse guide frame (301) and a transverse adjusting device (302). The torsion guide frame (202) is embedded in a guide sliding groove (303) of the transverse guide frame (301). A lateral adjustment device (302) is installed between the torsion guide frame (202) and the lateral guide frame (301). The transverse adjusting device drives the torsion guide frame (202) to transversely move to realize the transverse adjustment of the steel rail (7).
The steel rail vertical adjusting mechanism (4) comprises an outer box body (401) and a vertical adjusting device (402). The transverse guide frame (301) is integrally placed in the outer box body (401), and the end of the transverse guide frame (301) is embedded into a guide sliding groove (403) of the outer box body (401).
Two ends of the transverse guide frame (301) are provided with two groups of vertical adjusting devices for lifting the transverse guide frame (301) so as to realize vertical adjustment of the steel rail.
In a second aspect, the invention provides a rail-to-rail method, comprising,
s1, moving the scanning sensor moving device of the steel rail profile scanning assembly in the +/-500 mm range of the steel rail joint along the direction parallel to the steel rail so as to scan the positions and the profiles of the two sections of steel rails to be welded;
step S2, calculating the straightness and dislocation of the steel rail according to the scanning result;
step S3, outputting the steel rail position adjusting value to a steel rail position adjusting mechanism according to the selected alignment standard;
and step S4, judging whether the steel rail is aligned to the requirement or not, and adjusting the alignment state between the two sections of steel rails by the steel rail position adjusting mechanism.
Preferably, a 3D scanning measurement and control system is adopted, a laser profile sensor is adopted as a working element, the working element is arranged at the joint of the two steel rails, and the position and the profile of the two sections of steel rails to be welded are scanned in a moving mode along the direction of the steel rails.
More preferably, the rail attitude obtained by the scanning is input to the control system as a control input. And calculating a steel rail position adjustment target value according to an internal control strategy of the control system, and transmitting the steel rail position adjustment target value to an adjusting mechanism to execute to complete the steel rail-to-rail adjustment work.
Preferably, the rail-to-rail method according to the second aspect of the present invention employs the rail-to-rail mechanism according to the first aspect of the present invention.
Drawings
FIG. 1 is a schematic view of a rail aligner assembly of a preferred embodiment of the rail-to-rail mechanism of the present invention;
FIG. 2 is a side view of a schematic representation of the rail profile scanning assembly of the embodiment of FIG. 1;
FIG. 3 is a front view of a preferred embodiment of the rail profile scanning assembly shown in FIG. 2;
FIG. 4 is a perspective view of the rail profile scanning assembly of the embodiment of FIG. 2;
FIG. 5 is a schematic view of the rail attitude adjustment assembly of the embodiment of FIG. 1;
FIG. 6 is a schematic view of the rail torsion adjustment mechanism of the embodiment of FIG. 1;
FIG. 7 is a schematic view of the rail lateral adjustment mechanism of the embodiment of FIG. 1;
FIG. 8 is a schematic view of a vertical rail adjustment mechanism of the embodiment of FIG. 1;
FIG. 9 is a schematic view of rail center alignment;
FIG. 10 is a schematic view showing the relative positions of the two sections of rails to be butted together shown in FIG. 9;
FIG. 11 is a schematic view of the top surface alignment of the rails of the embodiment of FIG. 9;
FIG. 12 is a schematic view of the alignment of the bottom edges of the rails in the embodiment of FIG. 9;
FIG. 13 is a schematic view of the alignment of the right working edge of the rail in the embodiment of FIG. 9;
FIG. 14 is a schematic view of the alignment of the left working edge of the rail in the embodiment of FIG. 9;
1 steel rail profile scanning assembly, 2 steel rail torsion adjusting mechanism, 3 steel rail transverse adjusting mechanism, 4 steel rail vertical adjusting mechanism, 5 steel rail clamping mechanism, 6 upsetting mechanism and 7 steel rail
101 three laser profile scanning sensors 102 are fixed on the scanning sensor moving device
201 rotating shaft 202 twisting guide frame 203 twisting adjusting oil cylinder
301 transverse guide frame 302 transverse adjusting oil cylinder 303 transverse guide sliding chute
401 vertical direction guide chute of outer box 402 vertical adjustment oil cylinder 403
Detailed Description
The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the preferred embodiment of the rail-to-rail mechanism of the present invention.
Embodiment 1.1 as shown in fig. 1, a preferred embodiment of the rail-to-rail mechanism of the present invention comprises a rail profile scanning assembly (1), a rail torsion adjusting mechanism (2), a rail transverse adjusting mechanism (3), and a rail vertical adjusting mechanism (4); the steel rail torsion adjusting mechanism (2), the steel rail transverse adjusting mechanism (3) and the steel rail vertical adjusting mechanism (4) are installed in the outer box body 401, and the steel rail aligning mechanism is installed between a rail clamping mechanism (5) and an upsetting mechanism (6) of the rail welding equipment. When the rail clamping mechanism (5) clamps the steel rail (7), the rail aligning mechanism starts to adjust the position of the steel rail, and disturbance errors caused by clamping the steel rail after alignment is finished are avoided.
Fig. 2-4 show a rail profile scanning assembly (1) having three laser profile scanning sensors (101) mounted on a scanning sensor moving device (102). The scanning sensor moving device 102 includes a vertically downward-opening U-shaped frame, which is connected to the longitudinal side wall of the outer box 402 of the rail vertical adjusting mechanism 4 through a moving rod. And laser profile scanning sensors (101) are respectively arranged at the lower part of the center of the top surface of the U-shaped frame and the lower bottom surfaces of the two ends of the U-shaped frame, so that profile data of the top surface of the steel rail and the profile data of the two sides of the steel rail can be scanned and monitored. The scanning sensor moving device (102) is driven by the moving rod to move the laser scanning sensor (101) arranged on the U-shaped frame along the direction parallel to the steel rails, and scans and collects position data and profile data of the two sections of steel rails (7) to be butted. The laser profile scanning sensor (101) can be driven by the scanning sensor moving device 102 to stop at the joint of the two steel rails, so that the alignment result of the steel rails is monitored in real time, and the result is fed back to the steel rail posture adjusting mechanism. Until the steel rail is aligned to meet the requirement.
Fig. 6 is a schematic structural diagram of a preferred embodiment of the steel rail torsion adjusting mechanism (2), in this embodiment, the steel rail torsion adjusting mechanism 2 includes a torsion guide frame (202), the torsion guide frame 202 is a horizontally arranged rectangular or square frame, the height of the torsion guide frame 202 is 3-4 times of the thickness of the frame, the centers of the longitudinal ends of the torsion guide frame 202 include through holes, the rotating shafts 201 are embedded in the through holes, the rail clamping mechanism of the rail welding equipment is inserted into the shaft sleeves of the torsion guide frame (202) through the rotating shafts (201), first mounting seats are arranged on the two transverse end faces of the torsion guide frame 202, the first mounting seats are linked with a torsion adjusting cylinder (203), the piston rod end of the torsion adjusting cylinder (203) is connected to the rail clamping mechanism 5, and the rail clamping mechanism (5) is pushed by the piston rod of the torsion adjusting cylinder 203 to realize the rotation adjustment of the rail clamping mechanism 5 relative to the outer box 401, thereby enabling the rail clamping mechanism (5) to drive the steel rail (7) to realize the torsion adjustment of the steel rail.
FIG. 7 is a schematic structural diagram of a rail lateral adjustment mechanism (3), which includes a lateral guide frame (301), a lateral adjustment cylinder (302); the transverse guide frame 301 is a single-sided frame installed at the outer sides of the two transverse ends of the torsion guide frame 202, the transverse guide frame 301 comprises a transverse guide sliding groove 303, and the torsion guide frame 202 is embedded in the transverse guide sliding groove 303 of the transverse guide frame 301. The torsion guide frame (202) can only transversely slide in the transverse guide sliding groove (303) of the transverse guide frame (301), the transverse adjusting oil cylinder 302 is fixed on the torsion guide frame (202), and a piston rod of the transverse adjusting oil cylinder 302 is fixedly arranged on the transverse guide frame (301). The piston rod of the transverse adjusting oil cylinder 302 stretches and retracts to push the torsion guide frame (202) to transversely move so as to realize transverse adjustment of the steel rail (7).
Fig. 8 is a schematic structural diagram of the rail vertical adjusting mechanism (4), which includes an outer box 401 and a vertical adjusting cylinder (402).
The transverse guide frame (301) is integrally placed in the outer box body 401, the end of the transverse guide frame (301) is embedded into a vertical guide sliding groove (403) of the outer box body (401), and the vertical guide sliding groove (403) is a boss which is integrally formed in the outer box body 401 and comprises a groove. The transverse guide frame (301) can only move up and down in a vertical guide sliding groove (403) on the outer box body (401), two ends of the transverse guide frame (301) are provided with two groups of vertical adjusting oil cylinders 402 for lifting the transverse guide frame (301) to achieve vertical adjustment of the steel rail (7), a cylinder barrel of each vertical adjusting oil cylinder 402 is connected to a third mounting seat at the top of the longitudinal end face of the outer box body 401, and a piston end of each vertical adjusting oil cylinder 402 is connected to the top face of the transverse guide frame (301).
As shown in fig. 1, 5 and 6, the rail clamping mechanism 5 of the present embodiment is an integral structure, the top of the rail clamping mechanism includes a longitudinal beam, two sides of the longitudinal beam include four integrally formed beams, the bottom of the beams at the front and rear ends in the longitudinal direction further includes a rail clamping block mounting groove, and a rail clamping block is mounted in the rail clamping block mounting groove so as to clamp the rail web of the steel rail; the four groups of beams form three groups of guide grooves on two sides of the longitudinal beam, the piston end of a torsion adjusting oil cylinder 203 connected on the torsion frame 202 is accommodated in the middle guide groove of the three groups of guide grooves, and the piston end of the torsion adjusting oil cylinder 203 penetrates through the middle guide groove and then is connected to the steel rail 7.
During operation, a rail clamping mechanism (5) of rail welding equipment is arranged in a torsion guide frame 202 of a steel rail torsion adjusting mechanism 2, a steel rail vertical adjusting mechanism 4, a steel rail transverse adjusting mechanism 3 embedded in the steel rail vertical adjusting mechanism and the steel rail torsion adjusting mechanism 2 are integrally arranged between upsetting mechanisms (6), the upsetting mechanisms 6 penetrate through mounting holes in longitudinal side walls of two outer boxes 401, the steel rail vertical adjusting mechanism 4 arranged in the outer boxes 401, the steel rail transverse adjusting mechanism 3 embedded in the steel rail vertical adjusting mechanism, the steel rail torsion adjusting mechanism 2 and the rail clamping mechanism are arranged in two steel rails to be butted, and the positions of the steel rails of the two outer boxes 401 are adjusted through the steel rail vertical adjusting mechanism 4 in the outer boxes 401, the steel rail transverse adjusting mechanism 3 embedded in the steel rail vertical adjusting mechanism and the steel rail torsion adjusting mechanism 2 to achieve the purpose of rail alignment. And when the rail clamping mechanisms (5) in the two outer boxes 401 respectively clamp the two sections of rails (7) to be butted as shown in fig. 9 and 10, the rail profile scanning assembly 1 mounted on one outer box 401 in the rail clamping mechanisms starts to stretch and contract, and starts to operate and adjust the position of the rail through the laser profile scanning sensor 101 and the scanning sensor moving device 102.
The positive effect of the rail-to-rail mechanism of the embodiment is as follows: the rail position can be automatically adjusted according to the rail position and profile result scanned by the scanning system, so as to meet the selected rail alignment rule, namely, the rail center is aligned (8) as shown in fig. 9, the rail top surface is aligned (9) as shown in fig. 11, the rail bottom edge is aligned (10) as shown in fig. 12, the rail right working edge is aligned (11) as shown in fig. 13, or the rail left working edge is aligned (12) as shown in fig. 14. So as to improve the welding efficiency and quality of the steel rail and reduce the polishing workload of the steel rail in the later period.
The rail profile scanning assembly employs three sets of profile sensors. And scanning the posture and position data of the two sections of steel rails to be welded in real time.
And monitoring the steel rail alignment result in real time. Realize rail counterpoint automation, improve the rail bonding tool straightness and satisfy and weld rail quality requirement.
The adjusting mechanism is arranged between the rail clamping mechanism and the upsetting mechanism of the rail welding equipment. When the rail adding mechanism clamps the steel rail, the rail aligning mechanism starts to adjust the position of the steel rail, and disturbance errors caused by clamping the steel rail after alignment is finished are avoided. The steel rail is transversely twisted and is transversely and vertically adjusted to a required position by the adjusting mechanism. Different alignment standards are met (the centers of the steel rails are aligned (8), the bottom edges of the steel rails are aligned (9), the top surfaces of the steel rails are aligned (10), the right working edges of the steel rails are aligned (11), and the left working edges of the steel rails are aligned (12)).
Embodiment 1.2A rail-to-rail mechanism is the same as embodiment 1.1 except that: the torsion adjusting oil cylinder 203, the transverse adjusting oil cylinder 302 and the vertical adjusting oil cylinder 402 are replaced by power output devices such as a speed reducing motor, a stepping motor or a lead screw.
Embodiment 1.3A rail-to-rail mechanism is the same as embodiment 1.1 except that: the guide grooves of the transverse guide sliding groove 303, the vertical guide sliding groove 403 and the rail clamping mechanism 5 are replaced by linear rails or optical axes.
The rail-to-rail mechanism can automatically adjust the postures of the two sections of steel rails to be welded so as to meet the selected steel rail alignment standard. The automatic steel rail aligning device is used for rail welding equipment to achieve the automatic steel rail aligning function, and further improves steel rail welding efficiency, quality and adaptability of an existing welding machine.
The workload of polishing the steel rail in the later period is reduced.
Embodiment 2.1 a rail-to-rail method comprising placing laser profile scanning sensors (101) on the top surface of a rail and on the two sides of a rail, respectively. The scanning sensor moving device (102) is fixed on the outer box body (402); the scanning sensor moving device (102) drives the laser scanning sensor (101) to move in the direction parallel to the steel rail (7) to scan and acquire the position and profile data of the two sections of steel rails. Meanwhile, the device can be stopped at the joint of two steel rails, and the steel rail alignment result can be monitored in real time. And the laser profile scanning sensor (101) feeds the result back to the steel rail posture adjusting mechanism, the steel rail posture adjusting mechanism is compared with the adjusting rule to obtain the required adjusting amount, and the steel rail is adjusted vertically or horizontally or is twisted horizontally until the steel rail is aligned to meet the requirement.
Claims (10)
1. The utility model provides a rail to rail mechanism, its includes rail profile scanning subassembly (1) and rail gesture guiding mechanism, its characterized in that: the rail profile scanning assembly (1) comprises a scanning control system, wherein the scanning control system comprises at least three laser profile scanning sensors (101) which are respectively arranged at the top of the rail and on two sides of the rail, the scanning sensors are connected with a scanning sensor moving device, and the scanning sensor moving device moves in a +/-500 mm range of a rail joint along a direction parallel to the rail so as to scan the positions and profiles of two sections of rails to be welded.
2. The rail-to-rail mechanism of claim 1, wherein: the scanning control system comprises a 3D scanning measurement and control system, and the 3D scanning measurement and control system is connected with and controls the steel rail posture adjusting mechanism.
3. The rail-to-rail mechanism of claim 2, wherein: the 3D scanning measurement and control system uses a laser profile sensor as a working element, and the laser profile sensor is arranged at the joint of two steel rails.
4. A rail-to-rail mechanism according to claim 1 or 3, wherein: the steel rail posture adjusting mechanism is fixed on the upsetting mechanism, and the rail clamping mechanism of the welding machine is placed on the steel rail posture adjusting mechanism.
5. The rail-to-rail mechanism of claim 4, wherein: and the steel rail posture adjusting mechanism is arranged between the rail clamping mechanism and the upsetting mechanism.
6. A rail-to-rail mechanism according to claim 1, 2, 3 or 5, wherein: the steel rail posture adjusting mechanism comprises a steel rail torsion adjusting mechanism (2), a rail transverse adjusting mechanism (3) and a steel rail vertical adjusting mechanism (4).
7. The rail-to-rail mechanism of claim 1, wherein: the rail profile scanning assembly (1) comprises three laser profile scanning sensors (101) fixed on a scanning sensor moving device (102).
8. The rail-to-rail mechanism of claim 7, wherein: the laser profile scanning sensors (101) are respectively arranged on the top surface of the rail and two side edges of the rail; the scanning sensor moving device (102) is fixed to the outer case (401).
9. The rail-to-rail mechanism of claim 6, wherein: the steel rail torsion adjusting mechanism (2) comprises a rotating shaft (201) and a torsion guide frame (202), a rail clamping mechanism (5) of rail welding equipment is connected with the torsion guide frame (202) through the rotating shaft (201), the fixed end of a torsion adjusting device (203) is installed on the torsion guide frame (202), and the movable end of the torsion adjusting device (203) pushes the rail clamping mechanism (5) to realize the end part rotation adjustment of the rail clamping mechanism (5).
10. The rail-to-rail mechanism of claim 6, wherein: the steel rail transverse adjusting mechanism (3) comprises a transverse guide frame (301) and a transverse adjusting device (302); the torsion guide frame (202) is embedded into a guide sliding groove (303) of the transverse guide frame (301); the transverse adjusting device (302) is arranged between the torsion guide frame (202) and the transverse guide frame (301); the steel rail vertical adjusting mechanism (4) comprises an outer box body (401) and a vertical adjusting device; the transverse guide frame (301) is integrally placed in the outer box body (401), and the end of the transverse guide frame (301) is embedded into a guide sliding groove (403) of the outer box body (401); two ends of the transverse guide frame (301) are provided with two groups of vertical adjusting devices for lifting the transverse guide frame (301) so as to realize vertical adjustment of the steel rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155299.2U CN212426575U (en) | 2019-07-22 | 2019-07-22 | Steel rail is to rail mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155299.2U CN212426575U (en) | 2019-07-22 | 2019-07-22 | Steel rail is to rail mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212426575U true CN212426575U (en) | 2021-01-29 |
Family
ID=74275545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921155299.2U Active CN212426575U (en) | 2019-07-22 | 2019-07-22 | Steel rail is to rail mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212426575U (en) |
-
2019
- 2019-07-22 CN CN201921155299.2U patent/CN212426575U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1597228A (en) | Agitation friction welding system and corralation agitation friction welding assembly, controller and method | |
| CN102091870A (en) | Fiber transmission automatic laser welding system dedicated for plate type solar thermal collector | |
| CN209936113U (en) | Laser welding machine | |
| CN111546100A (en) | Full-automatic numerical control double-end milling machine | |
| CN212426575U (en) | Steel rail is to rail mechanism | |
| CN110802360A (en) | Steel bar intersection point clamping and centering device for large-scale steel bar mesh welding equipment | |
| CN112281558A (en) | Steel rail aligning mechanism and aligning method | |
| EP2331272B1 (en) | Production line for lift guides and similar products and productive process for making thereof | |
| CN105269193A (en) | Automatic welding fabrication equipment for aluminum alloy door frames and welding fabrication method | |
| CN210209086U (en) | Four-laser-head different-movement leather cutting machine | |
| CN216461895U (en) | A drilling equipment for aluminum product processing | |
| CN211101774U (en) | Key groove milling machine tool | |
| CN112845779B (en) | Combined hydraulic punching machine and punching method thereof | |
| CN213257327U (en) | Automatic bilateral milling equipment for welding seams of blanks of round tubes and square tubes | |
| CN212070538U (en) | Crankshaft milling double-end-face machining device | |
| CN211135609U (en) | A batch perforating device for door and window material | |
| CN219170270U (en) | Feeding and discharging mechanism capable of being used for two numerical control machine tools simultaneously | |
| CN112496198A (en) | Bending mechanism and automatic bending machine | |
| CN220074454U (en) | Pipe fitting clamping die | |
| CN220698606U (en) | Hinge seat positioning welding device | |
| CN214518331U (en) | High efficiency welding equipment | |
| CN209754316U (en) | Accurate upset welded platform | |
| CN214392663U (en) | Numerical control steel plate chamfering machine tool | |
| CN212330098U (en) | Welding row device used in welding machine | |
| CN216914178U (en) | Guide device for plate side surface pull groove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |