CN116872127B - Press-mounting positioning mechanism for traction rod node of railway vehicle - Google Patents
Press-mounting positioning mechanism for traction rod node of railway vehicleInfo
- Publication number
- CN116872127B CN116872127B CN202311052444.5A CN202311052444A CN116872127B CN 116872127 B CN116872127 B CN 116872127B CN 202311052444 A CN202311052444 A CN 202311052444A CN 116872127 B CN116872127 B CN 116872127B
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- China
- Prior art keywords
- positioning
- assembly
- sliding
- press
- hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to the technical field of assembly of parts of railway vehicles, in particular to a press-mounting positioning mechanism of a traction rod node of a railway vehicle, which comprises a base and two sliding table assemblies positioned on the base, wherein each sliding table assembly comprises a sliding assembly and a supporting seat which can be driven by the sliding assembly to slide horizontally, an angle adjusting assembly, a flexible guiding assembly and a positioning assembly are sequentially arranged on the supporting seat from bottom to top along the vertical direction, the positioning assembly further comprises an upper platform, the positioning assembly comprises a positioning sleeve and a clamping piece, the positioning sleeve comprises a positioning column positioned in the middle part, an adjusting through hole is formed in the positioning column, the clamping piece is positioned in the adjusting through hole, the upper end of the positioning column penetrates from a processing through groove to the upper side of the upper platform and stretches into an inner hole of a rod body in the traction rod node, and the flat side of a mandrel in the traction rod node stretches into the adjusting through hole and is clamped and positioned by the clamping piece. According to the invention, the angle adjustment and the center distance adjustment can be realized according to the specification of the traction rod node, the gap between the tool and the mandrel can be eliminated, and the press-fitting positioning precision is improved.
Description
Technical Field
The invention relates to the technical field of component assembly of railway vehicles, in particular to a press-fitting positioning mechanism of a traction rod node of a railway vehicle.
Background
The bogie of the railway vehicle is usually provided with a traction rod node which mainly plays a role in connection and vibration reduction. The traction rod joint generally comprises a rod body and two rubber joints, wherein each rubber joint comprises an inner sleeve, an outer sleeve and a rubber body vulcanized between the inner sleeve and the outer sleeve, the inner sleeve further comprises a mandrel, and the mandrel comprises a flat square extending to the outer side of the inner sleeve. In the processing process, two rubber nodes are respectively pressed into two inner holes at two ends of the rod body. In the prior art, the rubber node is usually pressed into the inner hole of the rod body by using a tool manually, along with the continuous improvement of the running speed of vehicles in the field of rail traffic, the requirements on the design and manufacturing process of the traction rod node are increasingly strict, the high-precision requirement of the pressing of the rubber node in the traction rod node cannot be met by a manual processing mode, the processing efficiency of the manual processing mode is low, the pressing quality is poor, and the mechanical performance of the whole vehicle in running is reduced. There is therefore a need to design a special press-fitting device for installing a drawbar node, in which the following patents relate to press-fitting devices for drawbar nodes or similar connecting bars:
1. The utility model patent with the patent number of 201520465255.5 and the patent name of 'rubber ball hinge interference press-fitting tool' comprises a press-in assembly, a support cylinder assembly and a return assembly, wherein the press-in assembly consists of a press head and a guide cylinder, the support cylinder assembly comprises an upper support cylinder, a lower support cylinder and a bottom support cylinder which are aligned up and down in sequence, and the return assembly comprises a press cover. The utility model can simplify the interference press-fitting process of the rubber spherical hinge, reduce the labor intensity of the interference press-fitting of the rubber spherical hinge and improve the press-fitting efficiency.
2. The invention patent with the patent number of 201710756026.2 and the patent name of axle box pull rod press-fitting tool and press-fitting method comprises a base, a support cylinder assembly, a guide cylinder assembly and a pressure head, wherein the guide cylinder assembly, a press-fitting hole of a rod body and the support cylinder assembly are coaxially aligned from top to bottom, a pull rod spherical hinge vertically arranged penetrates through the guide cylinder assembly, the lower end of the pull rod spherical hinge extends into the press-fitting hole of the rod body, and the upper end of the pull rod spherical hinge is covered by a pressing block. The press-fitting tool disclosed by the invention has high press-fitting precision, and can effectively reduce the center distance tolerance of the axle box pull rod.
However, the above prior art has the following problems:
1. for traction rods with different types and specifications, positioning cylinders with different specifications are required to be designed, and the number of tools is huge and the manufacturing cost of the tools is increased due to various products;
2. The existing positioning cylinder structure is difficult to eliminate the gap caused by the tolerance of iron parts and the machining precision of the positioning cylinder, and the product angle has the risk of out-of-tolerance;
3. the tooling needs to be readjusted after the product is changed, so that the production efficiency is reduced;
4. the positioning cylinder is reset through a single spring, so that the positioning cylinder is easy to incline, and metal accumulation is generated in the press mounting process.
In summary, how to design a press-mounting positioning mechanism with simple structure and high press-mounting positioning precision, and capable of realizing precise angle adjustment for the traction rod node of the railway vehicle is a problem to be solved.
Disclosure of Invention
The invention aims to solve the problems, and provides a press-fitting positioning mechanism for a traction rod node of a railway vehicle, which is applicable to traction rod nodes of different specifications, has strong universality, can improve the press-fitting efficiency of the traction rod node, and improves the press-fitting precision.
The invention provides a technical scheme that the press-mounting positioning mechanism of the traction rod node of the railway vehicle comprises a base and two sliding table assemblies which are symmetrically arranged on the base, wherein each sliding table assembly comprises a sliding assembly and a supporting seat which can be driven by the sliding assembly to slide horizontally, an angle adjusting assembly, a flexible guiding assembly and a positioning assembly are sequentially arranged on the supporting seat from bottom to top along the vertical direction, the positioning assembly further comprises an upper platform with a processing through groove, the positioning assembly comprises a positioning sleeve and a clamping piece, the positioning sleeve comprises a positioning column positioned in the middle part and provided with an adjusting through hole, the upper end of the positioning column penetrates through the upper platform from the processing through groove and stretches into an inner hole of a rod body in the traction rod node, and the flat side of a mandrel in the traction rod node stretches into the adjusting through hole and is clamped and positioned in the adjusting through hole by the clamping piece.
Further, the clamping piece comprises a clamping block positioned in the adjusting through hole and a clamping driving piece positioned at the outer side of the positioning column, and the power output end of the clamping driving piece is connected with the clamping block and drives the clamping block to clamp the flat square in the adjusting through hole.
The lower part of the positioning column is provided with a driving hole, and the power output end of the clamping driving piece extends into the driving hole and is connected with the clamping block.
Further, the flexible guide assembly comprises a guide disc positioned at the upper end of the angle adjusting assembly and a plurality of guide posts which are all arranged on the guide disc, the positioning sleeve comprises a positioning disc arranged along the circumferential direction of the positioning post, the upper ends of the guide posts are connected to the lower end of the positioning disc, and the guide posts are sleeved with compression springs.
Further, the lower part of the positioning column extends out to the lower part of the positioning disk and is accommodated among the guide columns, and the driving hole is formed in the positioning column below the positioning disk and the clamping driving piece is positioned between the adjacent guide columns.
The angle adjusting assembly comprises an angle dial and an angle driving piece, wherein the angle dial is arranged on the supporting seat, the angle driving piece is connected with the angle dial, the angle dial is connected with the guide plate through a connecting disc, and the angle dial is connected with the supporting seat through a connecting table.
The sliding assembly further comprises a sliding driving unit and drives the supporting seat to horizontally slide on the sliding rail through the sliding driving unit.
The sliding driving unit comprises a base, a sliding driving piece and a sliding driving unit, wherein the sliding driving piece is arranged on the outer side of the base, the sliding driving unit comprises two driving seats which are fixed on the base and are positioned between sliding rails, a screw rod is connected between the two driving seats, the middle part of the screw rod is provided with a screw rod seat which is connected to the supporting seat, and the screw rod is connected with the sliding driving piece positioned on the outer side of the base and drives the screw rod seat and the supporting seat to horizontally slide through the sliding driving piece.
Further, a connecting seat is arranged at the upper end of the base, and the sliding rail and the screw rod seat are connected to the connecting seat.
Further, the outer end face of one side of the upper platform is connected with the outer end face of one side corresponding to the base through a side seat, and the processing through groove, the sliding rail and the screw rod are all arranged in parallel with the side seat.
The beneficial effects of the invention are as follows:
1. the press-fit positioning mechanism can be suitable for the processing requirements of the traction rod nodes with different lengths through the two sliding table assemblies, can be suitable for the processing requirements of the traction rod nodes with different sizes and flat squares through the positioning assembly, can improve the angle progress through the angle adjusting assembly, can reduce the tool mold changing frequency, eliminates the gap between a workpiece and the tool, improves the universality and universality, reduces the manufacturing cost of the tool, and improves the processing efficiency.
2. The flexible guide assembly comprises a plurality of guide posts and a plurality of compression springs, so that the guide positioning precision can be improved, and the inclination phenomenon of the positioning sleeve can be eliminated.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a press-fit positioning mechanism (only one traction lever node is shown) according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a press-fit positioning mechanism (upper platform and side seat are not shown, only one traction lever node is shown) according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a press-fit positioning mechanism (upper platform and side seat are not shown, only one traction lever node is shown) according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a positioning assembly according to an embodiment of the present invention.
The device comprises a sliding table assembly 1, an angle adjusting assembly 2, a flexible guide assembly 3, a positioning assembly 4, a supporting seat 5, an upper platform 6, a processing through groove 7, a positioning sleeve 8, a clamping piece 9, a clamping driving piece 10, an adjusting through hole 11, a positioning disc 12, a guide disc 13, a guide column 14, a compression spring 15, a driving hole 16, an angle disc 17, an angle driving piece 18, a connecting disc 19, a connecting table 20, a sliding rail 21, a sliding block 22, a driving seat 23, a lead screw 24, a lead screw seat 25, a side seat 26, a rod body 27, a rubber node 28, a flat square 29, an inner hole 30, a connecting seat 31, a base 32, a positioning column, a sliding driving piece 34 and a clamping block 35.
Detailed Description
The present invention will be further described in detail with reference to fig. 1 to 4 and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
1-3, The traction rod node comprises a rod body 27 and rubber nodes 28, two ends of the rod body 27 comprise two inner holes 30, the rubber nodes 28 are required to be pressed into the inner holes 30, the rubber nodes 28 comprise mandrels, and the mandrels comprise flat squares 29. The press-fit positioning mechanism comprises a base 32 and two sliding table assemblies 1 positioned on the base 32, wherein the two sliding table assemblies 1 are symmetrically arranged, and the universality of the press-fit positioning mechanism is improved by matching the length requirements of different rod bodies 27 in different traction rod nodes through the two sliding table assemblies 1. The sliding table assembly 1 comprises a sliding assembly and a supporting seat 5 which can be driven by the sliding assembly to horizontally slide, an angle adjusting assembly 2, a flexible guiding assembly 3 and a positioning assembly 4 are sequentially arranged on the supporting seat 5 from bottom to top along the vertical direction, and the positioning assembly 4 further comprises an upper platform 6 with a processing through groove 7.
As shown in fig. 2 and 3, the sliding assembly comprises a sliding rail 21 positioned on a base 32 and a sliding block 22 matched with the sliding rail 21, wherein a supporting seat 5 is connected to the upper end of the sliding block 22, the supporting seat 5 can slide horizontally along with the sliding block 22, and the sliding assembly further comprises a sliding driving unit and drives the supporting seat 5 to slide horizontally on the sliding rail 21 through the sliding driving unit. The sliding driving unit comprises two driving seats 23 which are fixed on a base 32 and are positioned between sliding rails 21, a screw rod 24 is connected between the two driving seats 23, a screw rod seat 25 which is connected to a supporting seat 5 is arranged in the middle of the screw rod 24, a sliding driving piece 34 which is positioned on the outer side of the base 32 is connected with the screw rod 24, the screw rod 24 is driven to rotate through the sliding driving piece 34, and the screw rod seat 25 and the supporting seat 5 are driven to horizontally slide, so that the distance between the two sliding components is adjusted, and the machining requirements of rod bodies 27 with different lengths are further matched.
The upper end of the base 32 is provided with a connecting seat 31, the sliding rail 21 and the screw rod seat 25 are connected to the connecting seat 31, and the position of the sliding table assembly 1 can be integrally adjusted by adjusting the position of the connecting seat 31, so that the universality of the mechanism is further improved, and meanwhile, the replacement and the maintenance of parts are facilitated. The outer end face of one side of the upper platform 6 is connected with the outer end face of the corresponding side of the base 32 through a side seat 26, and the processing through groove 7, the sliding rail 21 and the screw 24 are all arranged in parallel with the side seat 26.
As shown in fig. 3, the angle adjusting assembly 2 comprises an angle dial 17 positioned on the supporting seat 5 and an angle driving piece 18 connected with the angle dial 17, the angle of the angle dial 17 is matched and adjusted according to the specification of a rubber node 28 by driving the angle dial 17 to rotate through the angle driving piece 18, the angle dial 17 is connected with the guide plate 13 through a connecting disc 19, the angle dial 17 is connected with the supporting seat 5 through a connecting table 20, and therefore the stability of connection can be improved, and replacement and maintenance are facilitated.
As shown in fig. 1,3 and 4, the positioning assembly 4 comprises a positioning sleeve 8 and a clamping piece 9, the positioning sleeve 8 comprises a positioning column 33 positioned in the middle, an adjusting through hole 11 is formed in the positioning column 33, when the positioning assembly is installed, the upper end of the positioning column 33 penetrates through the upper platform 6 from the processing through groove 7 and stretches into an inner hole 30 of a rod body 27 in a traction rod node, a flat square 29 of a mandrel in the traction rod node stretches into the adjusting through hole 11 and is clamped and positioned in the adjusting through hole 11 by the clamping piece 9, the width of the processing through groove 7 is smaller than that of the rod body 27, and the rod body 27 is arranged at the upper end of the upper platform 6 in a lifting mode during processing.
The clamping piece 9 comprises a clamping block 35 positioned in the adjusting through hole 11 and a clamping driving piece 10 positioned outside the positioning column 33, a driving hole 16 is formed in the lower portion of the positioning column 33, a power output end of the clamping driving piece 10 extends into the driving hole 16 and is connected with the clamping block 35, and the clamping block 35 is driven by the clamping driving piece 10 to clamp the flat square 29 in the adjusting through hole 11. The adjusting through hole 11 is of a rectangular hole structure, the clamping block 35 is tightly attached to the hole wall on one side of the adjusting through hole 11, the positioning sleeve 8 comprises a positioning plate 12 circumferentially arranged along the positioning column 33, and the driving hole 16 is formed in the positioning column 33 below the positioning plate 12.
As shown in fig. 3, the flexible guide assembly 3 comprises a guide disc 13 positioned at the upper end of the angle adjusting assembly 2 and a plurality of guide posts 14 which are all arranged on the guide disc 13, wherein the upper ends of the guide posts 14 are connected with the lower end of the positioning disc 12, and the guide posts 14 are sleeved with compression springs 15. In this embodiment, the guide posts 14 are uniformly arranged, each guide post 14 is sleeved with a compression spring 15, the upper end of each compression spring 15 is connected with the positioning disc 12, and the lower end of each compression spring 15 is connected with the guide disc 13. The lower portion of the positioning post 33 protrudes below the positioning plate 12 and is accommodated between four guide posts 14, and the clamping drive 10 is located between adjacent guide posts 14.
When the traction rod is used, according to the size specification of a traction rod node, the two supporting seats 5 are driven by the sliding driving piece 34 to horizontally slide to corresponding positions, then the rod body 27 is placed on the upper platform 6 and is positioned at the machining through groove 7, the positioning column 33 is positioned in the inner hole 30 of the rod body 27, the rubber node is pressed into the inner hole 30, the flat square 29 of the mandrel in the rubber node stretches into the adjusting through hole 11, and the clamping piece 35 is driven by the clamping driving piece 10 to clamp the flat square 29.
While embodiments of the present invention have been illustrated and described above, it will be appreciated that the above described embodiments are illustrative and should not be construed as limiting the invention. Variations, modifications, alternatives and variations of the above-described embodiments may be made by those of ordinary skill in the art within the scope of the present invention.
The above embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (9)
1. A press-fit positioning mechanism of a traction rod node of a railway vehicle is characterized by comprising a base (32) and two symmetrically arranged sliding table assemblies (1) which are arranged on the base (32), wherein each sliding table assembly (1) comprises a sliding assembly and a supporting seat (5) which can be driven by the sliding assembly to horizontally slide, each supporting seat (5) is sequentially provided with an angle adjusting assembly (2), a flexible guiding assembly (3) and a positioning assembly (4) from bottom to top along the vertical direction, each positioning assembly (4) further comprises an upper platform (6) with a machining through groove (7), each positioning assembly (4) comprises a positioning sleeve (8) and a clamping piece (9), each positioning sleeve (8) comprises a positioning post (33) which is arranged in the middle, an adjusting through hole (11) is formed in each positioning post (33), the upper end of each positioning post (33) penetrates through the corresponding machining through groove (7) to the upper platform (6) and stretches into an inner hole (30) of a rod body (27) in the traction rod node, a flat side (29) in each traction rod node stretches into each adjusting through hole (11) and is positioned in each clamping piece (9) which is positioned in each clamping piece (10) and comprises a clamping piece (35) which is positioned outside each clamping piece (11), the power output end of the clamping driving piece (10) is connected with the clamping block (35) and drives the clamping block (35) to clamp the flat square (29) in the adjusting through hole (11).
2. The press-fit positioning mechanism of the rail vehicle traction rod node according to claim 1, wherein the adjusting through hole (11) is of a rectangular hole structure, the clamping block (35) is tightly attached to the hole wall on one side of the adjusting through hole (11), the driving hole (16) is arranged at the lower part of the positioning column (33), and the power output end of the clamping driving piece (10) extends into the driving hole (16) and is connected with the clamping block (35).
3. The press-fit positioning mechanism of the rail vehicle traction rod node according to claim 2, wherein the flexible guide assembly (3) comprises a guide disc (13) positioned at the upper end of the angle adjusting assembly (2) and a plurality of guide posts (14) which are all arranged on the guide disc (13), the positioning sleeve (8) comprises a positioning disc (12) circumferentially arranged along the positioning posts (33), the upper ends of the plurality of guide posts (14) are connected to the lower end of the positioning disc (12), and the guide posts (14) are sleeved with compression springs (15).
4. A press-fit positioning mechanism for a rail vehicle drawbar node according to claim 3, wherein the lower part of the positioning column (33) extends below the positioning disc (12) and is accommodated between a plurality of guide columns (14), the driving hole (16) is formed in the positioning column (33) below the positioning disc (12) and the clamping driving member (10) is located between adjacent guide columns (14).
5. The press-fit positioning mechanism of the rail vehicle traction rod node according to claim 4, wherein the angle adjusting assembly (2) comprises an angle dial (17) arranged on the supporting seat (5) and an angle driving piece (18) connected with the angle dial (17), the angle dial (17) is connected with the guide plate (13) through a connecting disc (19), and the angle dial (17) is connected with the supporting seat (5) through a connecting table (20).
6. The press-fit positioning mechanism of a rail vehicle traction rod node according to any one of claims 1 to 5, wherein the sliding assembly comprises a sliding rail (21) arranged on a base (32) and a sliding block (22) matched with the sliding rail (21), the supporting seat (5) is connected to the upper end of the sliding block (22), and the sliding assembly further comprises a sliding driving unit and drives the supporting seat (5) to horizontally slide on the sliding rail (21) through the sliding driving unit.
7. The press-fit positioning mechanism of a rail vehicle traction rod node according to claim 6, wherein the sliding driving unit comprises two driving seats (23) which are fixed on a base (32) and are positioned between sliding rails (21), a screw rod (24) is connected between the two driving seats (23), a screw rod seat (25) which is connected to a supporting seat (5) is arranged in the middle of the screw rod (24), a sliding driving piece (34) positioned on the outer side of the base (32) is connected to the screw rod (24), and the screw rod seat (25) and the supporting seat (5) are driven to horizontally slide by the sliding driving piece (34).
8. The press-fit positioning mechanism of the rail vehicle traction rod node according to claim 7, wherein a connecting seat (31) is arranged at the upper end of the base (32), and the sliding rail (21) and the screw rod seat (25) are connected to the connecting seat (31).
9. The press-fitting positioning mechanism of the rail vehicle traction rod node according to claim 8, wherein the outer end face of one side of the upper platform (6) is connected with the outer end face of one side corresponding to the base (32) through a side seat (26), and the machining through groove (7), the sliding rail (21) and the screw rod (24) are all arranged in parallel with the side seat (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311052444.5A CN116872127B (en) | 2023-08-21 | 2023-08-21 | Press-mounting positioning mechanism for traction rod node of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311052444.5A CN116872127B (en) | 2023-08-21 | 2023-08-21 | Press-mounting positioning mechanism for traction rod node of railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116872127A CN116872127A (en) | 2023-10-13 |
| CN116872127B true CN116872127B (en) | 2025-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311052444.5A Active CN116872127B (en) | 2023-08-21 | 2023-08-21 | Press-mounting positioning mechanism for traction rod node of railway vehicle |
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| Country | Link |
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| CN (1) | CN116872127B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202070887U (en) * | 2011-03-02 | 2011-12-14 | 株洲时代新材料科技股份有限公司 | Spherical hinge locating press assembling tool without metal jacket |
| CN108673371A (en) * | 2018-05-20 | 2018-10-19 | 滁州普立惠技术服务有限公司 | A kind of fixture roll-out tray |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201881131U (en) * | 2010-12-23 | 2011-06-29 | 中国北车集团大同电力机车有限责任公司 | Press-mounting auxiliary tool for traction rod of locomotive |
| CN202447862U (en) * | 2012-02-15 | 2012-09-26 | 青岛四方庞巴迪铁路运输设备有限公司 | Press fitting tool for traction draw bar of railway vehicle |
| CN104043959B (en) * | 2014-06-20 | 2016-07-27 | 江苏贸隆机械制造有限公司 | A kind of press-fitting tool for assembling rail vehicle drawing pull bar |
| CN113458704A (en) * | 2021-07-12 | 2021-10-01 | 重庆大学 | Flexible butt-joint table for cylindrical parts |
| CN113977515B (en) * | 2021-09-27 | 2023-03-28 | 株洲时代新材料科技股份有限公司 | Node withdrawing device and node withdrawing method of vertical traction rod |
-
2023
- 2023-08-21 CN CN202311052444.5A patent/CN116872127B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202070887U (en) * | 2011-03-02 | 2011-12-14 | 株洲时代新材料科技股份有限公司 | Spherical hinge locating press assembling tool without metal jacket |
| CN108673371A (en) * | 2018-05-20 | 2018-10-19 | 滁州普立惠技术服务有限公司 | A kind of fixture roll-out tray |
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| Publication number | Publication date |
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| CN116872127A (en) | 2023-10-13 |
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Effective date of registration: 20251224 Address after: 412007 Hunan Province, Zhuzhou City, Tianyuan District, Heilongjiang Road No. 639, Zhuzhou Times New Material Technology Co., Ltd. Patentee after: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. Country or region after: China Patentee after: CRRC CHANGCHUN RAILWAY VEHICLES Co.,Ltd. Address before: Zhuzhou City, Hunan province 412007 Haitian road Tianyuan District No. 18 Patentee before: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. Country or region before: China |