Shaped jig frame for manufacturing steel shell of cable bent tower

Abstract

The utility model relates to a shaped jig frame for manufacturing a steel shell of a cable bent tower. The shaped jig frame comprises a jig frame bottom plate and a debugging structure unit, a plurality of bottom plate sliding grooves are formed in the surface of the jig frame bottom plate, the debugging structure unit comprises stand columns, inclined telescopic assemblies and horizontal telescopic assemblies, the two stand columns are hinged to the bottom plate sliding grooves, one ends of the two inclined telescopic assemblies are hinged into the bottom plate sliding grooves between the two stand columns, sliding rods are arranged at the other ends of the two inclined telescopic assemblies, and the sliding rods are in lap joint with the top ends of the stand columns; a horizontal telescopic assembly is hinged between the two inclined telescopic assemblies, and a push rod is arranged at the middle section of the horizontal telescopic assembly; electromagnets are arranged on the surfaces of the sliding rod and the push rod. The device has the advantages that synchronous adjustment of the supporting curvature, the inclination angle and the spacing of the jig frame is achieved, the construction cost is reduced, the block prefabrication efficiency is improved, meanwhile, lossless rapid demolding of a formed steel shell is achieved, the jig frame modular units can be rapidly reset and adapt to new block parameters, the production period is remarkably shortened, and the production cost is reduced. And the batch and standardized manufacturing requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge steel structure construction technical field especially including a cable tower steel shell manufacturing standardization jig frame. BACKGROUND

[0002] In the field of bridge construction, with the rapid development of steel structure processing technology, the application of steel shell structure of cable-stayed bridge and suspension bridge cable tower is increasing. Such cable tower has the advantages of high strength, good durability, flexible modeling, etc. and can adapt to complex stress conditions and aesthetic design requirements. However, the steel shell of the cable tower is difficult to be manufactured integrally in the factory at one time due to its large size and complex structure, and it is usually divided into several curved blocks for prefabrication, and then assembled into an integral structure through high-precision welding.

[0003] At present, the steel shell block prefabrication and welding process faces significant challenges: first, the traditional fixed jig frame cannot be adjusted due to the large difference in cross-sectional size, curvature and spatial attitude of the cable tower steel shell, which is designed as a special curved surface. Only a single cross-sectional shape can be adapted, and the support point and spatial angle cannot be flexibly adjusted, resulting in frequent replacement or customization of the jig frame during different block prefabrication, high cost and low efficiency; second, the existing jig frame relies on manual measurement and mechanical fine adjustment, which cannot meet the millimeter-level precision requirement of three-dimensional space positioning of the block steel shell, and the adjustment process is time-consuming and labor-intensive, which may cause welding misalignment and stress concentration problems; in addition, the stress state of the steel shell block is complex during prefabrication, turning, hoisting and other processes. The traditional jig frame lacks dynamic adaptability and cannot provide reliable support under different working conditions, which may cause component deformation and affect the quality of subsequent overall assembly.

[0004] To solve the above problems, the prior art attempts to use local adjustable support or temporary reinforcement measures, but such methods have limited adjustment range and rely on manual experience operation, which cannot realize standardized and batch production. Especially for large special-shaped steel shells, the block prefabrication efficiency is low, and the cumulative error of assembly is large, which has become a bottleneck restricting the construction quality and progress of the cable tower. Therefore, it is urgent to develop a reconfigurable jig frame that can dynamically adapt to the cross-sectional change requirement of different blocks of the cable tower steel shell, realize accurate three-dimensional positioning and stable support in multiple working conditions, thereby reducing the cumulative error of welding and providing technical support for high-quality construction of the steel shell cable tower. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects in the prior art and provides a cable tower steel shell manufacturing standardization jig frame.

[0006] This standardized jig for manufacturing the steel shell of the cable tower includes a jig base plate and a debugging structure unit. The jig base plate has several base plate grooves on its surface. The debugging structure unit includes columns, inclined telescopic components, and horizontal telescopic components. Two columns are hinged to the base plate grooves. One end of each of the two inclined telescopic components is hinged in the base plate groove between the two columns, and the other end is equipped with a sliding rod that overlaps the top of the column. A horizontal telescopic component is hinged between the two inclined telescopic components, and a push rod is provided in the middle of the horizontal telescopic component. Electromagnets are provided on the surfaces of both the sliding rod and the push rod.

[0007] Preferably, the base plate of the frame is provided with several base plate grooves at equal intervals along its length; a first wheel axle is slidably connected in the base plate groove, and the bottom end of the column is hinged to the first wheel axle; a third wheel axle is slidably connected in the base plate groove between the two first wheel axles, and the bottom end of the inclined telescopic component is hinged to the third wheel axle.

[0008] Preferably, a second fixed shaft is horizontally fixed through the upper end of the column, the second fixed shaft is fixed to the bottom end of two fixed rods, a first fixed shaft is connected between the top ends of the fixed rods, the first fixed shaft is fitted with a second wheel axle, and the sliding rod overlaps the surface of the second wheel axle.

[0009] Preferably, the debugging structure unit includes a structural rod, with a first telescopic rod connected to the top of the structural rod, and a sliding rod sleeved on the top of the first telescopic rod; a fourth wheel axle is hinged to the side of the structural rod; a horizontal telescopic component is hinged between the two inclined telescopic components through the fourth wheel axle; a push rod is provided in the middle of the horizontal telescopic component, with a second telescopic rod connected to both ends of the push rod; the second telescopic rod is hinged to the fourth wheel axle.

[0010] Preferably, both the first and third wheel axles are equipped with locking mechanisms.

[0011] The beneficial effects of this utility model are:

[0012] 1) The modular adjustability of this utility model is significantly improved. Through the synergistic effect of the sliding groove type adjustment unit and the multi-wheel axle linkage mechanism, the curvature, tilt angle and spacing of the jig support can be adjusted synchronously, adapting to the irregular cross-sectional shape of the steel shell of the cable tower along the height, avoiding the problem of frequent replacement or customization of traditional jigs, reducing construction costs and improving the efficiency of segmented prefabrication.

[0013] 2) This utility model has efficient demolding and reusability. Based on the timing control strategy of sliding mechanism and electromagnetic adsorption, it realizes non-destructive and rapid demolding of the formed steel shell. At the same time, the modular unit of the jig can be quickly reset and adapted to the new block parameters, which significantly shortens the production cycle and meets the needs of mass production and standardization. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the base plate of the tire frame;

[0015] Figure 2 Three-dimensional schematic diagram of a standardized jig for manufacturing the steel shell of the cable tower;

[0016] Figure 3 A schematic diagram of the standardized jig used to manufacture the steel shell of the pylon during the assembly of the first steel plate.

[0017] Figure 4 A schematic diagram of the standardized jig for manufacturing the steel shell of the pylon during the assembly of the second steel plate;

[0018] Figure 5 A schematic diagram of the standardized jig for manufacturing the steel shell of the cable tower during the assembly of the support system and the third steel plate;

[0019] Figure 6 A schematic diagram of the standardized jig for manufacturing the steel shell of the pylon during the assembly of the fourth steel plate.

[0020] Explanation of reference numerals in the attached drawings: 100. Base plate of the wheel frame; 101. Base plate groove; 200. Column; 201. First wheel axle; 202. Second wheel axle; 203. Fixing rod; 204. First fixed shaft; 205. Second fixed shaft; 206. Sliding rod; 207. First telescopic rod; 208. Structural rod; 209. Third wheel axle; 210. Fourth wheel axle; 211. Second telescopic rod; 212. Push rod; 300. 1. Steel plate; 301. First type steel; 302. Second type steel; 303. First through bolt; 400. Second steel plate; 401. Third type steel; 402. Fourth type steel; 403. Second through bolt; 500. Third steel plate; 501. Vertical support steel; 502. Diagonal brace steel; 503. Horizontal support steel; 504. First electromagnet plate; 505. Second electromagnet plate; 600. Fourth steel plate. Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0022] Example 1

[0023] As one example, such as Figure 1 As shown, it includes a base plate 100, and the surface of the base plate 100 is provided with a plurality of base plate grooves 101 at equal intervals along the length direction; such as Figure 2As shown, the standardized jig for manufacturing the steel shell of the pylon includes several symmetrically distributed adjustment structural units. Each adjustment structural unit includes a column 200, an inclined telescopic assembly, and a horizontal telescopic assembly. Two columns 200 are hinged to a base plate groove 101. One end of each of the two inclined telescopic assemblies is hinged in the base plate groove 101 between the two columns 200, and the other end is provided with a slide rod 206, which overlaps the top of the column 200. A horizontal telescopic assembly is hinged between the two inclined telescopic assemblies, and a push rod 212 is provided in the middle section of the horizontal telescopic assembly. Electromagnets are provided on the surfaces of both the slide rod 206 and the push rod 212.

[0024] A first wheel axle 201 is slidably connected in the base plate slide groove 101, and the bottom end of the column 200 is hinged to the first wheel axle 201; a third wheel axle 209 is slidably connected in the base plate slide groove 101 between the two first wheel axles 201, and the bottom end of the inclined telescopic component is hinged to the third wheel axle 209.

[0025] A second fixed shaft 205 is horizontally fixed through the upper end of the column 200. The second fixed shaft 205 is fixed to the bottom end of two fixed rods 203. A first fixed shaft 204 is connected between the top ends of the fixed rods 203. The first fixed shaft 204 is fitted with a second wheel axle 202. The slide rod 206 overlaps the surface of the second wheel axle 202.

[0026] The debugging structure unit includes a structural rod 208, with a first telescopic rod 207 connected to the top of the structural rod 208, and a sliding rod 206 sleeved on the top of the first telescopic rod 207; a fourth wheel axle 210 is hinged to the side of the structural rod 208; a horizontal telescopic component is hinged between the two inclined telescopic components through the fourth wheel axle 210; a push rod 212 is provided in the middle of the horizontal telescopic component, with a second telescopic rod 211 connected to both ends of the push rod 212; the second telescopic rod 211 is hinged to the fourth wheel axle 210.

[0027] Both the first wheel axle 201 and the third wheel axle 209 are equipped with locking mechanisms to lock their relative positions with the base plate slide groove 101 after the jig is adjusted into place. The debugging structure units are symmetrically arranged in pairs on the base plate slide groove 101. The push rods 212 of the two units in the same group are connected by electromagnet attraction. By synchronously driving the extension and retraction of the first telescopic rod 207 and the second telescopic rod 211, the tilt angle of the slide rod 206 and the distance between the push rods 212 are adjusted in linkage, thereby coordinating the adjustment of the jig support profile to adapt to the irregular curved surface size of the cable tower steel shell.

[0028] Example 2

[0029] As another embodiment, this second embodiment, based on the first embodiment, proposes a method for using this standardized jig for manufacturing the steel shell of the cable tower:

[0030] S1: Pre-adjustment of jig parameters; Based on the design parameters of the pylon steel shell, the three-dimensional spatial coordinates of the jig support points are calibrated through the grooving type adjustment unit, and the locking mechanism of the first wheel axle 201 and the third wheel axle 209 is adjusted synchronously so that the overall outline of the jig adapts to the irregular curved surface size of the target segmented steel shell.

[0031] S2: Positioning and clamping of the first steel plate; as shown Figure 3 As shown, the first steel plate 300 is hoisted and placed in the preset position of the jig. The electromagnetic adsorption module at the drive end of the push rod 212 is activated to achieve initial positioning. The first steel section 301 is vertically arranged on the front of the first steel plate 300, and the second steel section 302 is horizontally arranged below the second telescopic rod 211. The first steel section 301 and the second steel section 302 are rigidly connected at both ends by the first through bolt 303 to form a two-way clamping structure to lock the spatial position of the first steel plate 300.

[0032] S3: Co-positioning of the second steel plate; such as Figure 4 As shown, the second steel plate 400 is hoisted so that it leans against the slide rod assembly laterally, with its bottom edge forming a preset overlap angle with the first steel plate 300. The electromagnetic adsorption module on the surface of the slide rod 206 is activated to achieve initial fixation. Referring to the clamping and fixing method in step S2, the second steel plate 400 and the slide rod are clamped by the third type of steel 401 and the fourth type of steel 402, and a rigid connection is completed by the second through bolt 403. The relative spatial relationship between the first steel plate 300 and the second steel plate 400 is checked using a laser positioning instrument. After confirming that there are no errors, boundary positioning welding is carried out.

[0033] S4: Support system assembly; such as Figure 5 As shown, a vertical support steel 501 is vertically installed on the top of the first steel 301, and a diagonal bracing steel 502 and a transverse support steel 503 are arranged obliquely on its side; wherein, the end of the diagonal bracing steel 502 is provided with a first electromagnet plate 504, and the end of the transverse support steel 503 is provided with a second electromagnet plate 505.

[0034] S5: Assembly of the third and fourth steel plates at different levels; such as... Figure 5 and Figure 6 As shown, the third steel plate 500 is hoisted so that its bottom edge abuts against the second steel plate 400 and its top edge is obliquely attached to the first electromagnet plate 504. After the electromagnetic adsorption is activated, the spatial pose accuracy is verified by the three-dimensional coordinate calibration module, and the boundary positioning welding between the third steel plate 500 and the second steel plate 400 is completed. Simultaneously, the fourth steel plate 600 is hoisted and laid flat on the surface of the second electromagnet plate 505. After adsorption and fixation, its overlap angle with the third steel plate 500 is finely adjusted, and positioning welding is performed to form a closed section.

[0035] S6: Overall welding and demolding; full penetration continuous welding process is implemented on all lap boundaries to form a complete cable tower steel shell structure; release the mechanical constraints of all steel connection mechanisms, turn off the electromagnetic adsorption module, and use the sliding mechanism to move the formed steel shell away from the jig to complete the segmented prefabrication.

[0036] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 1 can be referred to each other, and will not be repeated in this application.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A standardized jig for manufacturing the steel shell of a cable tower, characterized in that, include: The jig base plate and the debugging structure unit are as follows: The jig base plate has several base plate grooves on its surface. The debugging structure unit includes columns, inclined telescopic components, and horizontal telescopic components. Two columns are hinged to the base plate grooves. One end of each of the two inclined telescopic components is hinged in the base plate groove between the two columns, and the other end is provided with a sliding rod that overlaps the top of the column. A horizontal telescopic component is hinged between the two inclined telescopic components. A push rod is provided in the middle of the horizontal telescopic component. Electromagnets are provided on the surfaces of both the sliding rod and the push rod.

2. The standardized jig for manufacturing the steel shell of the cable tower according to claim 1, characterized in that, The base plate of the frame is provided with several base plate grooves at equal intervals along its length; a first wheel axle is slidably connected in the base plate groove, and the bottom end of the column is hinged to the first wheel axle; a third wheel axle is slidably connected in the base plate groove between the two first wheel axles, and the bottom end of the inclined telescopic component is hinged to the third wheel axle.

3. The standardized jig for manufacturing the steel shell of the cable tower according to claim 1, characterized in that, A second fixed shaft is horizontally fixed through the upper end of the column. The second fixed shaft is fixed to the bottom end of two fixed rods. A first fixed shaft is connected between the top ends of the fixed rods. A second wheel axle is sleeved on the first fixed shaft, and a sliding rod overlaps the surface of the second wheel axle.

4. The standardized jig for manufacturing the steel shell of the cable tower according to claim 1, characterized in that, The debugging structure unit includes a structural rod, with a first telescopic rod connected to the top of the structural rod, and a sliding rod sleeved on the top of the first telescopic rod; a fourth wheel axle is hinged to the side of the structural rod; a horizontal telescopic component is hinged between the two inclined telescopic components through the fourth wheel axle; a push rod is provided in the middle of the horizontal telescopic component, with a second telescopic rod connected to both ends of the push rod; the second telescopic rod is hinged on the fourth wheel axle.

5. The standardized jig for manufacturing the steel shell of the cable tower according to claim 2, characterized in that, Both the first and third wheel axles are equipped with locking mechanisms.

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