A steel coil transport seat frame single welding tool
By using the limiting system and closed limiting design of the single welding fixture for the steel coil transport frame, the problems of inaccurate positioning and deformation during the welding process of the steel coil frame were solved, realizing a fast and efficient welding process and improving production efficiency and welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU STEEL GRP MECHANICAL EQUIP MFG CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-12
AI Technical Summary
In the process of welding individual pieces of steel coil transport frame, manual positioning relies on experience, assembly is time-consuming and accuracy is affected by the operator's skill level, and existing fixtures cannot effectively resist the multidimensional deformation caused by welding thermal stress.
The steel coil transport frame is a single welded fixture, including components such as a construction platform, fixture plate, limiting unit, and frame square tube. The symmetrically arranged limiting units and closed limiting system ensure the precise positioning and stability of the frame square tube, and offset the welding thermal stress.
It enables rapid and accurate positioning of the square tube of the support frame, reduces auxiliary time, improves production efficiency, prevents deformation during welding, and ensures consistent weld quality and structural accuracy.
Smart Images

Figure CN224347174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding technology for steel coil transport seats, and in particular to a single welding fixture for a steel coil transport seat frame. Background Technology
[0002] A steel coil support frame is a support frame used to support and fix steel coils during transportation; it is usually a sturdy welded frame.
[0003] In the process of welding individual parts, manual positioning relies on experience for adjustment, the assembly of individual parts is time-consuming, and the assembly accuracy is significantly affected by the operator's skill level, resulting in low assembly efficiency and slow speed. In addition, the existing simple fixtures only provide unidirectional constraints and cannot resist the multidimensional deformation problems caused by welding thermal stress.
[0004] To address this issue, those skilled in the art have provided a single welding fixture for a steel coil transport frame to solve the problems mentioned in the background section. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a single welding fixture for a steel coil transport frame, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0007] A single welding fixture for transporting steel coils includes a construction platform, which is installed on the ground via support columns and is horizontal; a fixture plate, which is located above the construction platform and is trapezoidal; two sets of limiting units, which are disposed on the construction platform and are symmetrically arranged on both sides of the fixture plate; each limiting unit includes a fixing stake and a pin block; and two sets of square tubes for the frame, which are engaged between the fixture plate and the limiting units.
[0008] According to the steel coil transport frame single welding fixture, a top stop block is welded and fixed at the top of the construction platform, and the central axis of the top stop block is on the same plane as the central axis of the fixture plate.
[0009] According to the steel coil transport frame single welding fixture, the top stop is located at one end of the junction of the two sets of frame square tubes, and is used to limit the two sets of frame square tubes. The top stop is rectangular.
[0010] According to the steel coil transport frame single welding fixture, the fixed pile is L-shaped, and the bottom ends of the two sets of fixed piles are welded and fixed to the top of the construction platform. The two sets of fixed piles do not contact the corresponding frame square tubes, and the two sets of fixed piles are symmetrical around the central axis of the top stop block.
[0011] According to the aforementioned steel coil transport frame single welding fixture, the cross-section of the pin block is a right-angled triangle, one right-angled side of the pin block is in contact with the corresponding frame square tube, and the pin block is located between the corresponding fixed pile and the frame square tube.
[0012] According to the steel coil transport frame single welding fixture, a base is provided between the fixture plate and the construction table. The base is fixed to the top of the construction table, and the base and the fixture plate are fixedly connected.
[0013] According to the steel coil transport frame single welding fixture, a bottom stop strip is also fixedly installed on the top of the fixture plate. The bottom stop strip and the top stop block are parallel to each other. Both ends of the bottom stop strip are provided with protrusions, which engage with one end of the corresponding frame square tube.
[0014] This utility model provides a single welding fixture for a steel coil transport frame, which has the following advantages:
[0015] (1) By setting two sets of symmetrically arranged limiting units on both sides of the tooling plate, the seat frame square tubes are locked between the limiting units and the tooling plate, which can accurately and firmly position the two sets of seat frame square tubes. This ensures the accuracy of the relative position of the seat frame square tubes during the welding process, which is the basis for achieving consistent weld quality and structural precision. It realizes rapid clamping and positioning, and the operator can start welding without repeatedly adjusting the position of the parts, which significantly reduces auxiliary time and improves production efficiency.
[0016] (2) The top stop is welded and fixed to the top of the construction platform, directly blocking the axial displacement of the square tube of the support frame. The rigid limit offsets the shrinkage stress during the welding process, preventing misalignment or twisting at the joint of the square tube of the support frame due to heat, and reducing the post-weld straightening process. The protrusions at both ends of the bottom stop engage with the ends of the square tube of the support frame, providing lateral limit. Together with the end blocking of the top stop, they form a closed limit system in the horizontal plane, ensuring that the workpiece does not shift under the welding thermal stress.
[0017] (3) The pin block serves as an intermediary component, precisely connecting the fixed pile and the square tube of the base frame, enabling the three to be quickly aligned and effectively improving the clamping efficiency. The two sets of fixed piles are symmetrically distributed around the central axis of the top block, forming a stable frame structure that effectively resists torsional stress during the welding process and reduces the risk of deformation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the welding process for a single welding fixture for a steel coil transport frame according to this utility model.
[0019] Figure 2 A schematic diagram of the three-dimensional structure of the welding fixture and the square tube support frame;
[0020] Figure 3 This is a schematic diagram of the welding fixture structure;
[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting unit;
[0022] Figure 5 This is a schematic diagram showing the connection relationship between the tooling plate, the base, and the bottom stop.
[0023] Legend:
[0024] 10. Construction platform; 11. Tooling plate; 12. Frame square tube; 13. Limiting unit; 14. Top stop block; 15. Bottom stop strip; 16. Fixing pile; 17. Pin block; 18. Base. Detailed Implementation
[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0026] Please see Figure 1-5 As shown, this utility model is a single welding fixture for a steel coil transport frame, including a construction platform 10, which is installed on the ground by support columns and is in a horizontal state; a fixture plate 11, which is located above the construction platform 10 and is trapezoidal; a limiting unit 13, which is set on the construction platform 10, and there are two sets of limiting units 13, which are symmetrical on both sides of the fixture plate 11. The limiting unit 13 includes a fixing pile 16 and a pin block 17; and a frame square tube 12, which is engaged between the fixture plate 11 and the limiting unit 13, and there are two sets of frame square tubes 12.
[0027] Specifically, by setting two sets of symmetrically arranged limiting units 13 on both sides of the tooling plate 11, and the seat frame square tube 12 engaging between the limiting units 13 and the tooling plate 11, the two sets of seat frame square tubes 12 can be precisely and firmly positioned. This ensures the accuracy of the relative position of the seat frame square tubes 12 during the welding process, which is the basis for achieving consistent weld quality and structural precision. It also enables rapid clamping and positioning, allowing operators to start welding without repeatedly adjusting the position of the components, significantly reducing auxiliary time and improving production efficiency.
[0028] Among them, such as Figure 1-3 As shown, a top stop block 14 is welded and fixed to the top of the construction platform 10. The central axis of the top stop block 14 is on the same plane as the central axis of the tooling plate 11. The top stop block 14 is located at one end where the two sets of frame square tubes 12 meet, and is used to limit the two sets of frame square tubes 12. The top stop block 14 is rectangular.
[0029] Specifically, the top stop 14 is welded and fixed to the top of the construction platform 10, directly blocking the axial displacement of the square tube 12 of the support frame. The rigid limit offsets the shrinkage stress during the welding process, preventing the joint of the square tube 12 of the support frame from being misaligned or twisted due to heat, and reducing the post-weld straightening process.
[0030] Among them, such as Figure 4 As shown, the fixing piles 16 are L-shaped, and the bottom ends of both sets of fixing piles 16 are welded and fixed to the top of the construction platform 10. The two sets of fixing piles 16 do not contact the corresponding square tubes 12 of the support frame, and the two sets of fixing piles 16 are symmetrical about the central axis of the top stop block 14. The cross-section of the pin block 17 is a right-angled triangle, and one right-angled side of the pin block 17 is in contact with the corresponding square tube 12 of the support frame. The pin block 17 is located between the corresponding fixing pile 16 and the square tube 12 of the support frame.
[0031] Specifically, the pin block 17 serves as an intermediary component, precisely connecting the fixing pile 16 and the square tube 12 of the base frame, enabling rapid alignment of the three components and effectively improving clamping efficiency. The two sets of fixing piles 16 are symmetrically distributed around the central axis of the top stop block 14, forming a stable frame structure that effectively resists torsional stress during the welding process and reduces the risk of deformation.
[0032] Among them, such as Figure 5 As shown, a base 18 is provided between the tooling plate 11 and the construction table 10. The base 18 is fixed to the top of the construction table 10, and the base 18 and the tooling plate 11 are fixedly connected. A bottom stop strip 15 is also fixedly installed on the top of the tooling plate 11. The bottom stop strip 15 and the top stop block 14 are parallel to each other. Both ends of the bottom stop strip 15 are provided with protrusions, which engage with one end of the corresponding square tube 12 of the support frame.
[0033] Specifically, the protrusions at both ends of the bottom stop 15 engage with the ends of the square tube 12 of the support frame to provide lateral limiting. Together with the end blocking of the top stop 14, they form a closed limiting system in the horizontal plane to ensure that the workpiece does not shift under welding thermal stress.
[0034] The specific working principle of this utility model of a single welding fixture for a steel coil transport frame is as follows: Two sets of symmetrically arranged limiting units 13 are set on both sides of the fixture plate 11. The square tube 12 of the frame is engaged between the limiting units 13 and the fixture plate 11. The top stop block 14 is welded and fixed to the top of the construction platform 10, directly blocking the axial displacement of the square tube 12 of the frame. The rigid limiting offsets the shrinkage stress during the welding process, preventing the joint of the square tube 12 of the frame from being misaligned or twisted due to heat. The protrusions at both ends of the bottom stop strip 15 are engaged with the ends of the square tube 12 of the frame, providing lateral limiting. Combined with the end blocking of the top stop block 14, they together form a closed limiting system in the horizontal plane, ensuring that the workpiece does not shift under the welding thermal stress. It can accurately and firmly position the two sets of square tubes 12 of the frame, which ensures the accuracy of the relative position of the square tubes 12 of the frame during the welding process. This is the basis for achieving the consistency of weld quality and structural accuracy. It realizes rapid clamping and positioning. The operator does not need to repeatedly adjust the position of the parts to start welding, which significantly reduces auxiliary time and improves production efficiency.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A steel coil transport saddle monomer welding tool, characterized in that, include: Construction platform (10), the construction platform (10) is installed on the ground by support columns, and the construction platform (10) is in a horizontal state; Tooling plate (11), the tooling plate (11) is located above the construction platform (10), and the tooling plate (11) is trapezoidal; Limiting unit (13), the limiting unit (13) is set on the construction platform (10), the limiting unit (13) is in two sets, the two sets of limiting units (13) are symmetrical on both sides of the tooling plate (11), the limiting unit (13) includes a fixing pile (16) and a pin block (17). The square tube (12) of the seat frame is engaged between the tooling plate (11) and the limiting unit (13). There are two sets of square tubes (12).
2. The steel coil transport cradle monoblock welding fixture of claim 1, wherein: The top of the construction platform (10) is welded and fixed with a top stop block (14), and the central axis of the top stop block (14) is on the same plane as the central axis of the tooling plate (11).
3. The steel coil transport cradle monoblock welding fixture of claim 2, wherein: The top stop (14) is located at one end of the junction of the two sets of seat frame square tubes (12) and is used to limit the two sets of seat frame square tubes (12). The top stop (14) is rectangular.
4. The steel coil transport rack monoblock welding fixture of claim 1, wherein: The fixed piles (16) are L-shaped. The bottom ends of the two sets of fixed piles (16) are welded and fixed to the top of the construction platform (10). The two sets of fixed piles (16) do not contact the corresponding square tubes (12) of the support frame. The two sets of fixed piles (16) are symmetrical around the central axis of the top block (14).
5. The steel coil transport rack monoblock welding fixture of claim 1, wherein: The cross section of the pin block (17) is a right triangle. One right-angled side of the pin block (17) is in contact with the corresponding square tube (12) of the base frame. The pin block (17) is located between the corresponding fixed pile (16) and the square tube (12) of the base frame.
6. The steel coil transport rack monoblock welding fixture of claim 1, wherein: A base (18) is provided between the tooling plate (11) and the construction table (10). The base (18) is fixed on the top of the construction table (10), and the base (18) and the tooling plate (11) are in a fixed connection relationship.
7. The steel coil transport rack monoblock welding fixture of claim 6, wherein: The tooling plate (11) is also fixedly installed with a bottom stop strip (15). The bottom stop strip (15) and the top stop block (14) are parallel to each other. Both ends of the bottom stop strip (15) are provided with protrusions, which engage with one end of the corresponding seat frame square tube (12).