Railway flat car partition assembly pair loading device
By designing a mounting device for assembling railway flatcar partitions and using cylinders to position the partitions, the positioning problem during welding of X70 flatcar partitions was solved, achieving an efficient and precise welding process and improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRRC GUIYANG CO LTD
- Filing Date
- 2024-06-28
- Publication Date
- 2026-07-24
AI Technical Summary
The X70 flatcar partition assembly is difficult to position accurately during welding, resulting in inaccurate alignment of the welding positions and affecting welding efficiency and quality.
A device for assembling railway flatcar partitions is designed, which uses cylinders to replace manual clamping. The partition clamping cylinder and the support plate clamping cylinder are used to position the partition plates. By combining L-shaped high partition positioning structure and low partition positioning structure, the positioning accuracy and efficiency are improved.
It increases welding efficiency by about 2 times, reduces the error rate caused by manual clamping, ensures the consistency and precision of welding quality, and simplifies the operation process.
Smart Images
Figure CN224543554U_ABST
Abstract
Description
[0001] This application is a divisional application of the patent application filed on June 28, 2024, with application number 2024215119192 and invention title "Railway Flatcar Central Crossbeam Assembly Device". Technical Field
[0002] This utility model belongs to the field of railway equipment manufacturing, and specifically relates to an auxiliary assembly device for flatcar assembly and welding. Background Technology
[0003] The central crossbeam of the X70 flatcar is assembled from multiple plates. The main structure consists of two web plates and I-shaped partitions. The production process requires welding the I-shaped partitions first. However, the partition assembly is an asymmetrical irregular structure, with the left and right plates being different in size and shape. It is difficult to accurately locate the welding position during welding, so a welding fixture needs to be designed to complete the welding of the partition assembly. Summary of the Invention
[0004] The technical problem to be solved by this utility model is: addressing the difficulty in assembling the partitions of the X70 flatcar, this utility model designs a reasonable and reliable positioning stop, uses a cylinder to replace manual clamping, realizes one-step positioning of the plates, improves assembly efficiency, and ensures welding quality.
[0005] The technical solution of this utility model: A railway flatcar partition assembly assembly device is provided. The partitions to be assembled are I-shaped structures. The assembly device includes a partition pressing cylinder 11, a support plate pressing cylinder 12, an L-shaped high partition positioning structure, a low partition positioning structure, and a support plate positioning structure on a platform. The partition pressing cylinder 11 and the support plate pressing cylinder 12 are perpendicular to each other. The L-shaped high partition positioning structure of the partition assembly assembly device includes two L-shaped high partition positioning plates 21 and two L-shaped high partition end positioning blocks 22. The low partition positioning structure includes two low partition positioning plates 41 and two low partition end positioning blocks 42.
[0006] The support plate positioning structure is located between the L-shaped high partition positioning structure and the low partition positioning structure. The support plate positioning structure consists of two parallel positioning plates 31, and there is a pad positioning groove 33 on one side of the root of the positioning plate 31.
[0007] Two partition clamping cylinders 11 are directly opposite two low partition positioning plates 41, and a support plate clamping cylinder 12 is directly opposite the center of two positioning plates 31; two pad baffles 32 are provided on the outer side of the two positioning plates 31, and two partition baffles 23 are provided on the side of the two L-shaped high partition positioning plates 21.
[0008] The welding process for the partition plates is as follows: 1. Place the L-shaped high partition 100 between the L-shaped high partition positioning plate 21 and the partition baffle 23, with both ends of the L-shaped high partition 100 locked between the two L-shaped high partition end positioning blocks 22. 2. Place the pad 300 between the pad positioning groove of the two positioning plates 31 and the pad baffle 32. The left end of the pad 300 is vertically pressed against the inner wall of the L-shaped high partition 100. Then, place the support plate 400 between the positioning plate 31 and the pad baffle 32. The support plate 400 is upright on the pad 300, and the left end of the support plate 400 is vertically pressed against the L-shaped high partition 100. 3. Place the low partition 200 against the two low partition positioning plates 41 and the two low partition end positioning blocks 42; 4. Start the partition clamping cylinder 11 and the support plate clamping cylinder 12 to clamp the lower partition 200 and the support plate 400, and perform spot welding.
[0009] The beneficial effects of this utility model are as follows: 1. By using specially designed welding fixtures to position the four parts that make up the partition, assembly efficiency is improved, increasing production efficiency by approximately 2 times. This solves the problem of time-consuming and labor-intensive manual clamping and reduces the assembly error rate caused by manual clamping.
[0010] 2. The design incorporates multiple positioning positions to ensure consistent assembly quality. The pneumatic clamping device is simple in structure, easy to operate, and provides high assembly accuracy, meeting the required dimensional accuracy for assembly. It reduces errors caused by manual clamping and positioning, thereby improving assembly quality. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of a partition assembly device.
[0012] Figure 2 yes Figure 1 A top-down view diagram; the red lines in the diagram indicate the positioning of the partitions.
[0013] Figure 3 This is a three-dimensional rendering of a partition assembly consisting of partitions installed on a mounting device.
[0014] Figure 4 This is a structural schematic diagram of the central crossbeam main assembly device.
[0015] Figure 5 This is a schematic diagram of the positioning and arrangement of the central crossbeam main assembly device from a top-down perspective.
[0016] Figure 6 This is a partial structural diagram of the partition plate position in the central crossbeam main assembly. The red dashed line in the diagram indicates the positioning position of the web plate.
[0017] Figure 7This is a schematic diagram of the partition assembly being positioned on the partition assembly positioning platform 6.
[0018] Figure 8 This is an overall rendering of the central crossbeam installed on the main body assembly device.
[0019] Figure 9 This is a perspective structural diagram of the central horizontal beam.
[0020] Figure 10 It is a perspective structural diagram composed of partitions.
[0021] Explanation of reference numerals in the attached drawings: 1. Working platform; 2. Top clamping cylinder; 3. Side clamping cylinder; 4. Lower cover plate support column; 5. Positioning block; 6. Positioning platform composed of partitions; 7. Positioning stop composed of partitions; 8. Middle wall; 9. Long strip block; 10. Anti-outward expansion baffle; 11. Partition clamping cylinder; 12. Support plate clamping cylinder; 21. L-shaped high partition positioning plate; 22. L-shaped high partition end positioning block; 23. Partition baffle; 31. Positioning plate; 32. Pad baffle; 33. Pad positioning groove (i.e., the slot opened below the positioning plate in 31); 41. Low partition positioning plate; 42. Low partition end positioning block; 100. L-shaped high partition; 200. Low partition; 300. Pad; 400. Support plate; 500. Lower cover plate; 600. Web plate. Detailed Implementation
[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Figures 1-8 The diagram shows the relative positions of the various components, but the component proportions in the diagram are not the actual size proportions.
[0023] Example: The central crossbeam of the X70 flatcar is composed of two symmetrical halves. Each half of the crossbeam is welded together from two web plates 600 with an I-shaped partition sandwiched between them. The web plates 600 have chamfered edges, and a folded lower cover plate 500 needs to be welded along the chamfers and bottom edges. The specific structure is as follows. Figure 9-10 As shown. In order to achieve the positioning and fixing of the plates before welding, this application designed a partition assembly assembly device to splice the partition assembly, and a main body assembly device to splice the central crossbeam.
[0024] The partitions form a pair of mounting devices: like Figure 3 The central horizontal beam's partitions form an I-beam structure, through which... Figures 1-3The partition assembly device on display consists of welded partitions. A table is designed and manufactured to facilitate operation from both sides and fix the position. The bottom is fixed by welding to ensure that the table is stable and reliable during assembly. The table is designed with partition clamping cylinder 11, support plate clamping cylinder 12, L-shaped high partition positioning structure, low partition positioning structure and support plate positioning structure.
[0025] The L-shaped high partition positioning structure of the partition assembly includes two L-shaped high partition positioning plates 21 and two L-shaped high partition end positioning blocks 22. The low partition positioning structure includes two low partition positioning plates 41 and two low partition end positioning blocks 42. Two pad baffles 32 are provided on the side of the two positioning plates 31 near the support plate pressing cylinder 12, and two partition baffles 23 are provided on the side of the two L-shaped high partition positioning plates 21 near the partition pressing cylinder 11.
[0026] The support plate positioning structure is located between the L-shaped high partition plate positioning structure and the low partition plate positioning structure. The support plate positioning structure consists of two parallel positioning plates 31, as follows: Figure 1 The positioning plate 31 has a pad positioning groove 33 on one side of its root.
[0027] Each positioning structure is designed and manufactured in accordance with the assembly dimensions of the central crossbeam partition of the X70 flatcar. The lower end of the positioning plate 31 is designed with a slot 33 according to the dimensions of the pad 300 in the partition assembly, to ensure the perpendicularity of the pad 300 and the support plate 400 and improve the assembly quality of the partition assembly.
[0028] Based on the position of the components forming the partitions, a clamping device is designed. This device consists of two small cylinders with a stroke of 50mm and a diameter of 50mm as partition clamping cylinders 11, and one large cylinder with a stroke of 150mm and a diameter of 50mm as support plate clamping cylinder 12. All three cylinders can rotate 90° to facilitate the loading and unloading of the sheet metal. After connecting 600kPa compressed air, the device performs two actions: pushing to clamp and retracting to release. The two partition clamping cylinders 11 are directly opposite the two lower partition positioning plates 41, and the support plate clamping cylinder 12 is directly opposite the center of the two positioning plates 31.
[0029] The welding process for the partition plates is as follows: 1. Place the L-shaped high partition 100 between the L-shaped high partition positioning plate 21 and the partition baffle 23, with both ends of the L-shaped high partition 100 locked between the two L-shaped high partition end positioning blocks 22. II. Figure 6 and Figure 7Place the pad 300 between the pad positioning groove 33 and the pad baffle 32 of the two positioning plates 31. The left end of the pad 300 vertically presses against the inner wall of the L-shaped high partition 100. Then, place the support plate 400 between the positioning plate 31 and the pad baffle 32. The support plate 400 stands vertically on the pad 300, and the left end of the support plate 400 vertically presses against the L-shaped high partition 100. 3. Place the low partition 200 against the two low partition positioning plates 41 and the two low partition end positioning blocks 42; 4. Start the partition clamping cylinder 11 and the support plate clamping cylinder 12 to clamp the lower partition 200 and the support plate 400, and perform spot welding. After spot welding is completed, remove the three cylinders and take off the partition assembly.
[0030] The main assembly structure of the pneumatic central crossbeam: Due to the large geometric dimensions of the central crossbeam, a working platform 1 was designed. This platform 1 is made of 300mm thick iron plate, flush with the ground, and fixed in position to ensure stability and reliability during assembly. A steel frame or plate forms a central wall 8 in the center of the working platform 1, dividing it into two symmetrical working areas. The pneumatic clamping device consists of 16 cylinders with a stroke of 80mm and a diameter of 50mm. Eight cylinders form the side positioning device, and the other eight form the top positioning device. These are combined in pairs to form eight sets of control knobs for operation. All 16 cylinders can rotate 90°, facilitating the loading and unloading of sheet metal. This design ensures the positioning accuracy of the central crossbeam and reduces labor consumption. Each working area has a row of four cylinder mounting seats on each side. The higher cylinder mounting seats at both ends are used to install the top clamping cylinder 2, and the two lower cylinder mounting seats in the middle are used to install the side clamping cylinder 3. The cylinder mounting seats include a column and a top rotating mechanism. The side clamping cylinder 3 is horizontally mounted on the rotating mechanism, and the top clamping cylinder 2 is vertically mounted below the cantilever. The cantilever is mounted on the rotating mechanism.
[0031] Each work area is designed with fixed positioning blocks according to the dimensions of the central crossbeam. A partition forms a positioning block 7 in the center of the work area. On each side of the partition positioning block 7, there is a set of lower cover plate positioning structures. Each lower cover plate positioning structure includes four rectangular positioning blocks 5 and a lower cover plate support 4. The work platform 1 has flip-up anti-expansion baffles 10 installed at both ends. The top of the anti-expansion baffle 10 and the middle wall 8 each have two web plate positioning grooves. The positioning grooves are designed according to the distance between the two web plates of the central crossbeam. Figure 3 The web positioning groove on the central wall 8 is composed of a long strip 9 and two short strips arranged in parallel. The long strip 9 and the two short strips are all welded to the central wall 8. The web positioning groove at the top of the anti-outward expansion baffle 10 has two notches. When in use, the anti-outward expansion baffle 10 is rotated upward to insert the web into the positioning groove, which completely solves the problem of the central crossbeam forming an "eight"-shaped outward expansion.
[0032] The partition positioning block 7 is composed of two L-shaped plates standing parallel to each other on the partition positioning platform 6, which is fixed in the center of the work platform 1.
[0033] The assembly process of the central crossbeam is as follows: 1. Rotate the top clamping cylinder 2, the side clamping cylinder 3 and the anti-outward expansion baffle 10 to leave space for feeding. Install two folded lower cover plates 500. The lower surface of the lower cover plate 500 is placed between four rectangular positioning blocks 5, and the upper surface of the lower cover plate is placed on the lower cover plate support 4. 2. The two web plates 600 are vertically erected on the lower cover plate 500, and the ends of the web plates 600 are positioned through the web plate positioning grooves on the middle wall 8. 3. Place the partition assembly between the two web plates 600, and insert the support plate 400 of the partition assembly between the two L-shaped plates. The heights of the high and low L-shaped partitions are different, such as... Figure 4 The height of the horizontal section of the L-shaped panel is exactly equal to the height difference between the high and low partitions of the L-shaped panel. 4. Rotate the anti-outward expansion baffle 10 upward so that the web plate is locked in the web plate positioning groove at the top of the anti-outward expansion baffle 10. Fine adjust the front and rear positions of the partition plate assembly. Rotate the top clamping cylinder 2 and the side clamping cylinder 3 and start the cylinder to press the workpiece. After spot welding and fixing, remove the 16 clamping cylinders and unload the material.
Claims
1. A device for assembling and assembling railway flatcar partitions, wherein the partitions to be assembled are of an I-beam shape, characterized in that: The mounting device includes a partition clamping cylinder (11), a support plate clamping cylinder (12), an L-shaped high partition positioning structure, a low partition positioning structure, and a support plate positioning structure on the platform. The partition clamping cylinder (11) and the support plate clamping cylinder (12) are perpendicular to each other. The L-shaped high partition positioning structure of the mounting device includes two L-shaped high partition positioning plates (21) and two L-shaped high partition end positioning blocks (22). The low partition positioning structure includes two low partition positioning plates (41) and two low partition end positioning blocks (42).
2. The railway flatcar partition assembly assembly device according to claim 1, characterized in that: The support plate positioning structure is located between the L-shaped high partition positioning structure and the low partition positioning structure. The support plate positioning structure consists of two parallel positioning plates (31), and there is a pad positioning groove (33) on one side of the root of the positioning plate (31).
3. The railway flatcar partition assembly assembly device according to claim 2, characterized in that: Two partition clamping cylinders (11) are directly opposite two low partition positioning plates (41), and a support plate clamping cylinder (12) is directly opposite the center of the two positioning plates (31); two pad baffles (32) are provided on the outer side of the two positioning plates (31), and two partition baffles (23) are provided on the side of the two L-shaped high partition positioning plates (21).