Method for welding a cable clamp and cable clamp
By welding an inner ring support fixture into the cable clamp cylinder and using symmetrical and asymmetrical bevel layer welding methods, the problems of low welding quality and large deformation were solved, and high-quality, low-cost welded cable clamp manufacturing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN MARINE MACHINERY PLANT
- Filing Date
- 2023-08-31
- Publication Date
- 2026-05-19
AI Technical Summary
The existing welded cable clamps have poor welding quality and unreasonable welding process, resulting in large welding deformation and high cost.
The cable clamp body is welded using an inner ring support fixture. Through symmetrical and asymmetrical bevel layer welding, the inner ring support fixture is first welded into the cylinder, and then the horizontal stiffening plates and longitudinal stiffening lugs are welded at intervals on the outer ring surface. Finally, annealing and cutting are performed to form a high-quality cable clamp finished product.
It effectively reduces welding deformation, improves welding quality, reduces costs, and has a reasonable welding process.
Smart Images
Figure CN117359308B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a welding method, belonging to the field of bridge engineering, and particularly to a welding method and a cable clamp for welding cable clamps. Background Technology
[0002] Cable clamps are connecting components between the main cable and the suspension cables of a suspension bridge. They are mainly used to transfer the load to the main cable and fix it in place. Traditional cable clamps are usually made of cast iron. However, as the size of the cable clamp increases, its volume, weight, and casting difficulty also increase. Defects such as sand holes and air bubbles are easily generated during casting, which have a certain impact on the quality of the cable clamp.
[0003] Patent application No. 202211147489.6, filed on September 21, 2022, discloses a method for manufacturing a welded cable clamp. The method involves welding two sets of stiffening plate assemblies to the outer wall of a cylindrical body, the two sets of stiffening plate assemblies being symmetrical about a first central plane of the cylindrical body; welding a connecting assembly to the outer wall of the cylindrical body, the connecting assembly being located between the two sets of stiffening plate assemblies, the connecting assembly being a symmetrical structure with the first central plane as its plane of symmetry; cutting the cylindrical body to obtain a first half-clip clamp and a second half-clip clamp, the mating surface of the first half-clip clamp and the second half-clip clamp being the second central plane of the cylindrical body and perpendicular to the first central plane; the connecting assembly being located on the second half-clip clamp; a portion of each set of stiffening plate assemblies being located on the first half-clip clamp; and another portion of each set of stiffening plate assemblies being located on the second half-clip clamp. While this method proposes a welded manufacturing method for cable clamps, it does not consider the deformation generated during welding and the cumbersome process caused by numerous stiffening plates, resulting in an unreasonable welding process and low welding quality.
[0004] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention
[0005] The purpose of this invention is to overcome the defects and problems of low welding quality in the prior art, and to provide a welding method and cable clamp with higher welding quality.
[0006] To achieve the above objectives, the technical solution of the present invention is: a welding method for a welded cable clamp, wherein the cable clamp includes a cable clamp body, several transverse stiffeners and several longitudinal stiffeners, the several transverse stiffeners are evenly distributed along the axial direction of the cable clamp body, and the several longitudinal stiffeners are vertically and symmetrically arranged at the bottom of the outer ring surface of the cable clamp body.
[0007] The welding method includes the following steps:
[0008] S1. Weld inner ring support fixtures to both ends of the inside of the cylinder to obtain the fixture cylinder;
[0009] S2. Weld several first horizontal stiffeners at intervals along the length of the outer ring surface of the tooling cylinder. The welding surfaces of the first horizontal stiffeners and the tooling cylinder are double-sided symmetrical bevels. Weld the double-sided symmetrical bevels symmetrically in layers until they are fixed to the tooling cylinder.
[0010] S3. Several longitudinal rib lifting lugs are vertically and symmetrically welded to the bottom of the outer ring surface of the tooling cylinder, and the weld surface between the longitudinal rib lifting lugs and the tooling cylinder is a natural bevel.
[0011] S4. Weld a second horizontal stiffener between two adjacent first horizontal stiffeners. The welding surface of the second horizontal stiffener and the tooling cylinder is a double-sided asymmetrical bevel. Weld the double-sided asymmetrical bevel in asymmetrical layers until it is fixed to the tooling cylinder.
[0012] S5. Weld support shoulder plates on both sides of the top and bottom surfaces of the first and second horizontal stiffeners, and weld lifting lug flange rings on the longitudinal stiffener lifting lugs to obtain tooling cable clamps.
[0013] S6. Anneal the tooling clamp and cut it along its axis. Then remove the inner ring support tooling to obtain the finished clamp.
[0014] The inner ring support fixture includes an upper half ring fixture piece and a lower half ring fixture piece, which are arranged symmetrically in the upper and lower parts.
[0015] Step S1, welding inner ring support fixtures at both ends of the cylinder, includes:
[0016] S11. The upper half ring tooling piece and the lower half ring tooling piece are symmetrically spot-welded and fixed to the inside of the cylinder.
[0017] S12. Weld a tooling connecting plate between the upper half-ring tooling piece and the lower half-ring tooling piece to obtain the tooling cylinder.
[0018] In step S2, the symmetrical layered welding refers to dividing the welding surface into several overlapping welding layers according to the included angle of the double-sided symmetrical bevel. First, a single layer of weld is welded on one side, and then the root cleaning and grinding are performed on the other side, followed by welding a single layer of weld. This process is repeated until the double-sided symmetrical bevel is fully welded.
[0019] In step S4, the asymmetric layered welding refers to: dividing the welding surface into several superimposed welding layers according to the included angle of the double-sided asymmetric bevel, firstly overlapping welding multiple single-layer welds on one side, then cleaning and grinding the root on the other side, and overlapping welding the same number of multiple single-layer welds, repeating the multi-layer overlapping welding in a cycle until the double-sided asymmetric bevel welding is full.
[0020] The interpass temperature for welding in steps S2 and S4 is 60℃-120℃.
[0021] In step S6, the annealing temperature is 560℃-580℃, and the annealing is maintained at that temperature for 6-8 hours.
[0022] The ratio of the two sides of the double-sided symmetrical bevel is 1:1, forming a 45° symmetrical bevel.
[0023] The ratio of the two sides of the double-sided asymmetrical bevel is 1:2, with the smaller side at 45° and the larger side at 35°.
[0024] A welded cable clamp includes an upper cable clamp body and a lower cable clamp body; the upper cable clamp body includes an upper half-cylinder and a plurality of upper horizontal stiffeners, the plurality of upper horizontal stiffeners being evenly spaced along the length direction of the upper half-cylinder; the upper horizontal stiffeners are rectangular, with the bottom center of the upper horizontal stiffeners recessed upwards to match the outer arc surface of the upper half-cylinder, and the top center of the upper horizontal stiffeners arching upwards; L-shaped upper support shoulders are provided on both sides of the top of the upper horizontal stiffeners, and the upper support shoulders are connected to the plurality of upper horizontal stiffeners;
[0025] The lower cable clamp includes a lower half-cylinder, several lower horizontal stiffeners, and longitudinal stiffener lugs. The several lower horizontal stiffeners are evenly spaced along the length of the lower half-cylinder and are opposite to several upper horizontal stiffeners. The lower horizontal stiffeners are rectangular, with the top center of each lower horizontal stiffener recessed downwards to match the outer arc surface of the lower half-cylinder. Lower support shoulders are provided on both sides of the bottom of each lower horizontal stiffener, and the lower support shoulders are connected to the several lower horizontal stiffeners. Each lower support shoulder has an upwardly extending connecting plate in the middle.
[0026] The top of the longitudinal rib lifting lug is comb-shaped and vertically inserted into the gaps between several lower horizontal rib plates, and connected to the lower part of the lower half of the cylinder. The bottom of the longitudinal rib lifting lug is asymmetrical trapezoidal, with several lifting lug flange ring through holes on it, and each lifting lug flange ring is installed in one of the lifting lug flange ring through holes.
[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0028] 1. In the welding method and clamp of the present invention, an inner ring support fixture is first welded to both ends of the inner ring of the cylindrical body to obtain the fixture cylinder. Then, several first transverse stiffener plates are symmetrically welded at intervals along the length of the outer ring surface of the fixture cylinder, with the weld surface of the first transverse stiffener plate to the fixture cylinder having a double-sided symmetrical slope. Next, several longitudinal stiffener lifting lugs are vertically and symmetrically welded to the bottom of the outer ring surface of the fixture cylinder, with the weld surface of the second transverse stiffener plate to the fixture cylinder having a natural bevel. Then, second transverse stiffener plates are asymmetrically welded in layers between two adjacent first transverse stiffener plates, with the weld surface of the second transverse stiffener plate to the fixture cylinder having a double-sided symmetrical slope. The welding surface of the cylinder is a double-sided asymmetrical bevel. Support shoulder plates are then welded to the top and bottom surfaces of the first and second transverse stiffeners. Lifting lug flange rings are welded onto the longitudinal stiffener lifting lugs to obtain the tooling cable clamp. Finally, the tooling cable clamp is annealed and cut along its axis. The inner ring support tooling is then removed to obtain the finished cable clamp. In application, this design effectively reduces deformation during welding by rationally arranging the welding sequence, alternating welding of the stiffeners, and performing layered welding with appropriate bevels on the stiffeners. Therefore, the welding quality of this invention is high.
[0029] 2. In the welding method and clamp of the present invention, the welding surface of the first horizontal stiffener plate and the tooling cylinder of the cylinder body is a double-sided symmetrical bevel with a ratio of 1:1 and a 45° symmetrical bevel; the welding surface of the second horizontal stiffener plate and the tooling cylinder body of the cylinder body is a double-sided asymmetrical bevel with a ratio of 1:2, with a 45° bevel on the smaller ratio side and a 35° bevel on the larger ratio side. In application, this design, due to the large number and density of horizontal stiffener plates, uses an intermittent welding method to control the welding spacing, which facilitates welding construction. The symmetrical bevel reduces welding deformation, while the asymmetrical bevel reduces the difficulty and workload of cleaning the back of the stiffener plate, and also reduces the amount of weld filler in the bevel, reducing welding deformation and improving workpiece quality. Therefore, the present invention not only has a more reasonable welding process, but also produces higher welding quality.
[0030] 3. In the welding method and clamp of the present invention, the inner ring support fixture includes symmetrically arranged upper and lower half-ring fixture pieces. First, the upper and lower half-ring fixture pieces are symmetrically spot-welded and fixed to the inside of the cylinder. Then, a fixture connecting plate is welded between them to obtain the fixture cylinder. In application, this design effectively controls the deformation of the stiffeners during welding using the tile-shaped annular fixture pieces. Annealing with the fixture also reduces the welding shrinkage deformation of the inner circle of the cylinder. Furthermore, the fixture can be reused, reducing costs. Therefore, the present invention not only achieves high welding quality but also has low cost. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the method steps of the present invention.
[0032] Figure 2 This is a schematic diagram of the structure of the present invention.
[0033] Figure 3 yes Figure 2 Side view.
[0034] Figure 4 This is a schematic diagram of the tooling cylinder in this invention.
[0035] Figure 5 This is a schematic diagram of the inner ring support fixture in this invention.
[0036] Figure 6 This is a schematic diagram showing the relative positions of the first transverse stiffener in this invention.
[0037] Figure 7 yes Figure 6 Side view.
[0038] Figure 8 This is a schematic diagram showing the relative positions of the longitudinal rib lifting lugs in this invention.
[0039] Figure 9 This is a schematic diagram showing the relative positions of the second transverse stiffener in this invention.
[0040] Figure 10 This is a schematic diagram showing the relative positions of the lifting lug flange rings in this invention.
[0041] Figure 11 yes Figure 10 A diagram showing the relative positions of the objects.
[0042] Figure 12 This is a schematic diagram of the cable clamp in this invention.
[0043] Figure 13 This is a schematic diagram of the upper cable clamp in this invention.
[0044] Figure 14 This is a schematic diagram of the lower cable clamp in this invention.
[0045] Figure 15 yes Figure 12 Side view.
[0046] Figure 16 This is a schematic diagram of the double-sided symmetrical bevel structure in this invention.
[0047] Figure 17 This is a schematic diagram of the symmetrical layered welding structure in this invention.
[0048] Figure 18 This is a schematic diagram of the double-sided asymmetric bevel structure in this invention.
[0049] Figure 19 This is a schematic diagram of the asymmetric layered welding structure in this invention.
[0050] Figure 20 This is a schematic diagram of the welding structure of the inner ring support fixture in Embodiment 2 of the present invention.
[0051] In the diagram: cable clamp body 1, cylinder 11, inner ring support fixture 12, upper half ring fixture piece 121, lower half ring fixture piece 122, fixture connecting plate 123, fixture cylinder 13, fixture cable clamp 14, transverse stiffener plate 2, first transverse stiffener plate 21, double-sided symmetrical bevel 211, longitudinal stiffener lifting lug 3, natural bevel 31, lifting lug flange ring 32, lifting lug flange ring through hole 33, second transverse stiffener plate 22, double-sided asymmetrical bevel 221, support shoulder plate 4, upper cable clamp body 5, upper half cylinder 51, upper transverse stiffener plate 52, lower cable clamp body 6, upper support shoulder plate 41, lower support shoulder plate 42, lower half cylinder 61, lower transverse stiffener plate 62. Detailed Implementation
[0052] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0053] See Figure 1 — Figure 19 A welding method for assembling a welded cable clamp, wherein the cable clamp includes a cable clamp body 1, a plurality of transverse stiffeners 2 and a plurality of longitudinal stiffeners 3, wherein the plurality of transverse stiffeners 2 are evenly distributed along the axial direction of the cable clamp body 1, and the plurality of longitudinal stiffeners 3 are vertically and symmetrically arranged at the bottom of the outer ring surface of the cable clamp body 1.
[0054] The welding method includes the following steps:
[0055] S1. Weld inner ring support fixtures 12 to both ends of the inner side of the cylinder 11 to obtain the fixture cylinder 13;
[0056] S2. Weld several first horizontal stiffeners 21 at intervals along the length of the outer ring surface of the tooling cylinder 13. The welding surfaces of the first horizontal stiffeners 21 and the tooling cylinder 13 are double-sided symmetrical bevels 211. Weld the double-sided symmetrical bevels 211 in symmetrical layers until they are fixed to the tooling cylinder 13.
[0057] S3. A number of longitudinal rib lifting lugs 3 are vertically and symmetrically welded to the bottom of the outer ring surface of the tooling cylinder 13. The welding surface between the longitudinal rib lifting lugs 3 and the tooling cylinder 13 is a natural bevel 31.
[0058] S4. Weld a second horizontal stiffener 22 between two adjacent first horizontal stiffeners 21. The welding surface of the second horizontal stiffener 22 and the tooling cylinder 13 is a double-sided asymmetric bevel 221. The double-sided asymmetric bevel 221 is welded asymmetrically in layers until it is fixed to the tooling cylinder 13.
[0059] S5. Weld support shoulder plates 4 on both sides of the top and bottom surfaces of the first horizontal stiffener plate 21 and the second horizontal stiffener plate 22, and weld lifting lug flange rings 32 on the longitudinal stiffener lifting lugs 3 to obtain tooling cable clamps 14.
[0060] S6. Anneal the tooling cable clamp 14 and cut it along its axis. Then remove the inner ring support tooling 12 to obtain the finished cable clamp.
[0061] The inner ring support fixture 12 includes an upper half ring fixture piece 121 and a lower half ring fixture piece 122, which are arranged symmetrically in the upper and lower parts.
[0062] Step S1, welding inner ring support fixtures 12 to both ends of the inner cavity of the cylinder 11, includes:
[0063] S11. The upper half-ring tooling piece 121 and the lower half-ring tooling piece 122 are symmetrically spot-welded and fixed to the inside of the cylinder 11.
[0064] S12. Weld a tooling connecting plate 123 between the upper half-ring tooling piece 121 and the lower half-ring tooling piece 122 to obtain the tooling cylinder 13.
[0065] In step S2, the symmetrical layered welding refers to dividing the welding surface into several overlapping welding layers according to the included angle of the double-sided symmetrical bevel 211. First, a single layer of weld bead is welded on one side, and then the root cleaning and grinding are performed on the other side, followed by welding a single layer of weld bead. This process is repeated until the double-sided symmetrical bevel 211 is fully welded.
[0066] In step S4, the asymmetric layered welding refers to: dividing the welding surface into several superimposed welding layers according to the included angle of the double-sided asymmetric groove 221. First, the large proportion of multiple single-layer weld beads on one side are overlapped and welded. Then, the root cleaning and grinding are performed on the other side, and the same number of multiple single-layer weld beads are overlapped and welded. The process of overlapping welding is repeated until the double-sided asymmetric groove 221 is fully welded.
[0067] The interpass temperature for welding in steps S2 and S4 is 60℃-120℃.
[0068] In step S6, the annealing temperature is 560℃-580℃, and the annealing is maintained at that temperature for 6-8 hours.
[0069] The ratio of the two sides of the double-sided symmetrical bevel 211 is 1:1, forming a 45° symmetrical bevel.
[0070] The ratio of the two sides of the double-sided asymmetrical bevel 221 is 1:2, with the smaller side at 45° and the larger side at 35°.
[0071] A welded cable clamp includes an upper cable clamp body 5 and a lower cable clamp body 6. The upper cable clamp body 5 includes an upper cylindrical body 51 and a plurality of upper horizontal stiffeners 52, which are evenly spaced along the length of the upper cylindrical body 51. The upper horizontal stiffeners 52 are rectangular, with the bottom center of each stiffener recessed upward to match the outer arc surface of the upper cylindrical body 51, and the top center of each stiffener arched upward. L-shaped upper support shoulders 41 are provided on both sides of the top of each stiffener 52, and the upper support shoulders 41 are connected to the plurality of upper horizontal stiffeners 52.
[0072] The lower cable clamp 6 includes a lower half-cylinder 61, a plurality of lower horizontal stiffeners 62, and longitudinal stiffener lugs 3. The plurality of lower horizontal stiffeners 62 are evenly spaced along the length of the lower half-cylinder 61 and are opposite to the plurality of upper horizontal stiffeners 52. The lower horizontal stiffeners 62 are rectangular, and the top center of the lower horizontal stiffeners 62 is concave downward to match the outer arc surface of the lower half-cylinder 61. Lower support shoulder plates 42 are provided on both sides of the bottom of the lower horizontal stiffeners 62, and the lower support shoulder plates 42 are connected to the plurality of lower horizontal stiffeners 62. The middle of the lower support shoulder plates 42 is provided with an upwardly extending connecting plate 43.
[0073] The top of the longitudinal rib lifting lug 3 is comb-shaped and is vertically inserted into the gaps of several lower horizontal rib plates 62, and is connected to the lower part of the lower half cylinder 61. The bottom of the longitudinal rib lifting lug 3 is asymmetrical trapezoidal, and several lifting lug flange ring through holes 33 are provided on it. Each of the lifting lug flange ring through holes 33 is provided with a lifting lug flange ring 32.
[0074] The principle of this invention is explained as follows:
[0075] In this invention, the cylinder 11 is rolled in sections using a three-core rolling machine, and the roundness and concentricity of the cylinder 11 are checked symmetrically around the cylinder 11 using an eight-point method to ensure that the roundness of the end of the cylinder 11 is ≤3mm and the concentricity of the inner and outer circles of the two ends of the cylinder 11 is ≤3mm.
[0076] Example 1:
[0077] See Figures 1-19 A welding method for assembling a welded cable clamp, wherein the cable clamp includes a cable clamp body 1, a plurality of transverse stiffeners 2 and a plurality of longitudinal stiffeners 3, wherein the plurality of transverse stiffeners 2 are evenly distributed along the axial direction of the cable clamp body 1, and the plurality of longitudinal stiffeners 3 are vertically and symmetrically arranged at the bottom of the outer ring surface of the cable clamp body 1.
[0078] The welding method includes the following steps:
[0079] S1. Weld inner ring support fixtures 12 to both ends of the inner side of the cylinder 11 to obtain the fixture cylinder 13;
[0080] S2. Weld several first horizontal stiffeners 21 at intervals along the length of the outer ring surface of the tooling cylinder 13. The welding surfaces of the first horizontal stiffeners 21 and the tooling cylinder 13 are double-sided symmetrical bevels 211. Weld the double-sided symmetrical bevels 211 in symmetrical layers until they are fixed to the tooling cylinder 13.
[0081] Further, see Figures 16-17 The symmetrical layered welding refers to: dividing the welding surface into several overlapping welding layers according to the included angle of the double-sided symmetrical bevel 211 (preferably the symmetrical bevel ratio on both sides is 1:1, with a 45° symmetrical bevel, and the interlayer temperature of the welding is 60℃-120℃). First, a single layer weld 1a is welded on one side, and then the root cleaning and grinding (preferably carbon arc gouging) is performed on the other side, and a single layer weld 2a is welded. Then, the overlapping welding is repeated in the order of 3a to 12a until the double-sided symmetrical bevel 211 is fully welded.
[0082] S3. A number of longitudinal rib lifting lugs 3 are vertically and symmetrically welded to the bottom of the outer ring surface of the tooling cylinder 13. The welding surface between the longitudinal rib lifting lugs 3 and the tooling cylinder 13 is a natural bevel 31.
[0083] S4. Weld a second horizontal stiffener 22 between two adjacent first horizontal stiffeners 21. The welding surface of the second horizontal stiffener 22 and the tooling cylinder 13 is a double-sided asymmetric bevel 221. The double-sided asymmetric bevel 221 is welded asymmetrically in layers until it is fixed to the tooling cylinder 13.
[0084] Further, see Figures 18-19 The asymmetric layered welding refers to: dividing the welding surface into several superimposed welding layers according to the included angle of the double-sided asymmetric groove 221 (preferably, the ratio of the two sides of the asymmetry is 1:2, with a 45° angle on the smaller side and a 35° angle on the larger side, and the interpass temperature is 60℃-120℃). First, the multi-layer single-layer welds 1a, 2a, and 3a on the larger side are overlapped and welded. Then, the root cleaning and grinding (preferably carbon arc gouging) are performed on the opposite side, and the same number of multi-layer single-layer welds 4a, 5a, and 6a are overlapped and welded. Then, the multi-layer overlapping welding is repeated in the order of 7a-11a until the double-sided asymmetric groove 221 is fully welded. During this process, the number of multi-layer layers on one side can be adjusted adaptively according to the thickness of the stiffener.
[0085] S5. Weld support shoulder plates 4 on both sides of the top and bottom surfaces of the first horizontal stiffener plate 21 and the second horizontal stiffener plate 22, and weld lifting lug flange rings 32 on the longitudinal stiffener lifting lugs 3 to obtain tooling cable clamps 14.
[0086] S6. Anneal the tooling clamp 14 (preferably at a temperature of 560℃-580℃, and keep it at that temperature for 6-8 hours after annealing), and cut the tooling clamp 14 along its axis (preferably by flame cutting). Then, remove the inner ring support tooling 12 to obtain the finished clamp.
[0087] Example 2:
[0088] The basic content is the same as in Example 1, except that:
[0089] The inner ring support fixture 12 includes an upper half ring fixture piece 121 and a lower half ring fixture piece 122, which are arranged symmetrically in the upper and lower parts.
[0090] Step S1, welding inner ring support fixtures 12 to both ends of the inner cavity of the cylinder 11, includes:
[0091] S11. The upper half-ring tooling piece 121 and the lower half-ring tooling piece 122 are symmetrically spot-welded and fixed to the inside of the cylinder 11.
[0092] S12. Weld a tooling connecting plate 123 between the upper half-ring tooling piece 121 and the lower half-ring tooling piece 122 to obtain the tooling cylinder 13.
[0093] In application, see Figure 20 A certain gap is maintained between the upper half ring tooling piece 121 and the lower half ring tooling piece 122 to facilitate subsequent cutting. During the fixing process, a hydraulic jack is used inside the cylinder to apply a pushing force to the inner ring support tooling piece 12 and the cylinder 11 outward. Wooden blocks are added between the jack and the inner ring support tooling piece 12 to ensure that the pushing force can be effectively and evenly applied to the upper half ring tooling piece 121 and the lower half ring tooling piece 122 until the outer side of the inner ring support tooling piece 12 and the inner side of the cylinder 11 are completely fitted. Then, a tooling connecting plate 123 is used to weld and fix the gap between the upper half ring tooling piece 121 and the lower half ring tooling piece 122. The weld length is required to be fully distributed transversely along the tooling connecting plate 123 and not less than 100mm, and the weld leg size K=10mm-15mm.
[0094] Example 3:
[0095] The basic content is the same as in Example 2, except that:
[0096] The cable clamp includes an upper cable clamp body 5 and a lower cable clamp body 6. The upper cable clamp body 5 includes an upper cylindrical body 51 and several upper horizontal stiffening plates 52, which are evenly spaced along the length of the upper cylindrical body 51. Each upper horizontal stiffening plate 52 is rectangular, with its bottom center concave upwards to match the outer arc surface of the upper cylindrical body 51, and its top center arched upwards. L-shaped upper support shoulders 41 are provided on both sides of the top of each upper horizontal stiffening plate 52, and these shoulders are connected to the upper horizontal stiffening plates 52. The lower cable clamp body 6 includes a lower cylindrical body 61, several lower horizontal stiffening plates 62, and longitudinal stiffening lugs 3, with the lower horizontal stiffening plates 62 evenly spaced along the length of the lower cylindrical body 61. The lower horizontal stiffener 62 is rectangular, with its top center recessed downwards to match the outer arc surface of the lower half-cylinder 61. Lower support shoulders 42 are provided on both sides of the bottom of the lower horizontal stiffener 62, and are connected to the lower horizontal stiffener 62. A connecting plate 43 extending upwards is provided in the center of each lower support shoulder 42. The top of the longitudinal stiffener lifting lug 3 is comb-shaped, vertically inserted into the gaps between the lower horizontal stiffeners 62, and connected to the lower part of the lower half-cylinder 61. The bottom of the longitudinal stiffener lifting lug 3 is asymmetrical trapezoidal, with several lifting lug flange ring through holes 33, each containing a lifting lug flange ring 32.
[0097] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.
Claims
1. A welding method for assembling a welded cable clamp, characterized in that: The cable clamp includes a cable clamp body (1), several transverse stiffeners (2) and several longitudinal stiffeners (3). The several transverse stiffeners (2) are evenly distributed along the axial direction of the cable clamp body (1), and the several longitudinal stiffeners (3) are vertically and symmetrically arranged at the bottom of the outer ring surface of the cable clamp body (1). The welding method includes the following steps: S1. Weld inner ring support fixtures (12) to both ends of the inner cavity of the cylinder (11); the inner ring support fixture (12) includes an upper half ring fixture piece (121) and a lower half ring fixture piece (122), which are arranged symmetrically in the upper and lower parts. S11. The upper half ring tooling piece (121) and the lower half ring tooling piece (122) are symmetrically spot welded and fixed inside the cylinder (11); S12. Apply a pushing force to the inner ring support fixture (12) and the cylinder (11) outwards inside the cylinder (11) until the outer side of the inner ring support fixture 12 is completely attached to the inner side of the cylinder 11. Then weld the fixture connecting plate (123) between the upper half ring fixture piece (121) and the lower half ring fixture piece (122) to obtain the fixture cylinder (13). S2. A number of first horizontal stiffeners (21) are welded at intervals along the length of the outer ring surface of the tooling cylinder (13). The welding surfaces of the first horizontal stiffeners (21) and the tooling cylinder (13) are double-sided symmetrical bevels (211). The bevel ratio of the two sides of the double-sided symmetrical bevel (211) is 1:1, and the bevels are symmetrical at 45°. The double-sided symmetrical bevel (211) adopts symmetrical layered welding. According to the included angle of the double-sided symmetrical bevel (211), the welding surface is divided into several overlapping welding layers. First, a single layer of weld is welded on one side, and then the root cleaning and grinding are carried out on the other side, and a single layer of weld is welded. The overlapping welding is carried out in a cycle until the double-sided symmetrical bevel (211) is fully welded and fixed to the tooling cylinder (13). S3. A number of longitudinal rib lifting lugs (3) are vertically and symmetrically welded to the bottom of the outer ring surface of the tooling cylinder (13). The welding surface between the longitudinal rib lifting lugs (3) and the tooling cylinder (13) is a natural bevel (31). S4. Weld a second horizontal stiffener (22) between two adjacent first horizontal stiffeners (21). The welding surface of the second horizontal stiffener (22) and the tooling cylinder (13) is a double-sided asymmetric bevel (221). The ratio of the two sides of the double-sided asymmetric bevel (221) is 1:2, with a small ratio side of 45° and a large ratio side of 35° asymmetric bevel. The double-sided asymmetric bevel (221) adopts asymmetric layered welding. According to the included angle of the double-sided asymmetric bevel (221), the welding surface is divided into several superimposed welding layers. First, the large proportion of one side is overlapped and welded with multiple single-layer welds. Then, the other side is cleaned and ground, and the same number of multiple single-layer welds are overlapped and welded. The process is repeated until the double-sided asymmetric bevel (221) is fully welded and fixed to the tooling cylinder (13). S5. Weld support shoulder plates (4) on both sides of the top and bottom surfaces of the first horizontal stiffener plate (21) and the second horizontal stiffener plate (22), and weld lifting lug flange rings (32) on the longitudinal stiffener lifting lugs (3) to obtain tooling cable clamps (14). S6. Anneal the tooling cable clamp (14) and cut the tooling cable clamp (14) along its axis. Then remove the inner ring support tooling (12) to obtain the finished cable clamp.
2. The welding method for a welded cable clamp according to claim 1, characterized in that: The interpass temperature for welding in steps S2 and S4 is 60℃-120℃.
3. The welding method for a welded cable clamp according to claim 1, characterized in that: In step S6, the annealing temperature is 560℃-580℃, and the annealing is maintained at that temperature for 6-8 hours.
4. A welded cable clamp manufactured by the welding method as described in claim 1, characterized in that: The cable clamp includes an upper cable clamp body (5) and a lower cable clamp body (6); the upper cable clamp body (5) includes an upper half-cylinder (51) and several upper horizontal stiffeners (52), the several upper horizontal stiffeners (52) are evenly spaced along the length direction of the upper half-cylinder (51); the upper horizontal stiffeners (52) are rectangular, the bottom center of the upper horizontal stiffeners (52) is concave upwards to match the outer arc surface of the upper half-cylinder (51), and the top center of the upper horizontal stiffeners (52) is arched upwards; L-shaped upper support shoulders (41) are provided on both sides of the top of the upper horizontal stiffeners (52), and the upper support shoulders (41) are connected to the several upper horizontal stiffeners (52); The lower cable clamp (6) includes a lower half-cylinder (61), several lower horizontal stiffeners (62) and longitudinal stiffener lugs (3). The several lower horizontal stiffeners (62) are evenly spaced along the length of the lower half-cylinder (61) and are opposite to several upper horizontal stiffeners (52). The lower horizontal stiffeners (62) are rectangular, and the top center of the lower horizontal stiffeners (62) is concave downwards to match the outer arc surface of the lower half-cylinder (61). The bottom sides of the lower horizontal stiffeners (62) are provided with lower support shoulders (42), and the lower support shoulders (42) are connected to the several lower horizontal stiffeners (62). The middle of the lower support shoulders (42) is provided with an upwardly extending connecting plate (43).
5. A welded cable clamp according to claim 4, characterized in that: The top of the longitudinal rib lifting lug (3) is comb-shaped and is vertically inserted into the gaps of several lower horizontal rib plates (62), and is connected to the lower part of the lower half cylinder (61). The bottom of the longitudinal rib lifting lug (3) is asymmetrical trapezoidal, and several lifting lug flange ring through holes (33) are provided on it. Each of the lifting lug flange ring through holes (33) is provided with a lifting lug flange ring (32).