CN204657736U - A kind of steel bar flux press welding test pressue device - Google Patents
A kind of steel bar flux press welding test pressue device Download PDFInfo
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- CN204657736U CN204657736U CN201520404463.4U CN201520404463U CN204657736U CN 204657736 U CN204657736 U CN 204657736U CN 201520404463 U CN201520404463 U CN 201520404463U CN 204657736 U CN204657736 U CN 204657736U
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- upper plate
- lower roof
- pressurizer
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- roof plate
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Abstract
The utility model discloses a kind of steel bar flux press welding test pressue device, comprise upper plate, lower roof plate and base, described lower roof plate is arranged between upper plate and base, upper plate is arranged on directly over lower roof plate, lower roof plate is arranged on directly over base, upper plate is provided with bracing or strutting arrangement, and the bottom of bracing or strutting arrangement is fixed with base through after upper plate and lower roof plate, and the outer wall of bracing or strutting arrangement is sheathed with adjusting device; Be provided with pressurizer in described upper plate, pressurizer is through upper plate, and pressurizer can carry out vertical in upper plate moves, and the end face indent of lower roof plate forms groove, and groove is arranged on immediately below pressurizer.This apparatus structure is simple, reliable in quality, is easy to ensure quality of weld joint, add steel bar flux press welding and connect extruding force, make joint area form the thick shape of pier, thus guarantee that splice bearing capacity 100% is greater than mother metal, result of the test joint all breaks in mother metal, in ductile fracture.
Description
Technical field
The utility model relates to building field, particularly, relates to a kind of steel bar flux press welding test pressue device.
Background technology
Pressure Welding is the method applying certain pressure when utilizing welding and complete welding, and Pressure Welding is also known as pressure welding.Pressure Welding is typical welding method, pressure must be utilized during welding to make the surface at position to be welded direct close contact after extruding liquid metal, and the pressure at position to be welded is strengthened, by regulating pressure and time, make welding surface fully carry out spreading and realizing combining between atom.Steel bar flux press welding is the rebar connecting technology that China initiates, be widely used in the middle Vertical bar connection of reinforced concrete structure (component), compare with mechanical connection with colligation connection, there is easy construction, low cost and other advantages, become Vertical bar connection in China's engineering construction and to have constructed one of main method of attachment.But, when adopting traditional weld jig, because extruding force is little, splice cross section does not increase, but it is identical with mother metal, like this, when welding, if when there is journal offset or joint existing defects in reinforcing bar, the total bearing capacity of joint can be had a strong impact on, in the past when welded H RB400 and following reinforcing bar, because reinforced steel bar strength is lower, even if when there is certain weld defect, alloy effect in solder flux can improve the intensity of weld seam, still can ensure the quality of joint, in recent years, the application of HRB500 high tensile reinforcement increases year by year, while intensity improves, its electric slag pressure welding performance is unsatisfactory, often occur that joint breaks in heat affected area, in brittle fracture situation.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of steel bar flux press welding test pressue device, it is little that this pressue device solves traditional steel bar flux press welding fixture extruding force, the problem of joint cross section can not be increased, connect compression stage carrying out steel bar flux press welding, by pressue device, two of welding reinforcing bars are pressurizeed, increase splice cross-sectional area, reach the object increasing splice bearing capacity.
The technical scheme in the invention for solving the above technical problem is: a kind of steel bar flux press welding test pressue device, comprise upper plate, lower roof plate and base, described lower roof plate is arranged between upper plate and base, upper plate is arranged on directly over lower roof plate, lower roof plate is arranged on directly over base, upper plate is provided with bracing or strutting arrangement, and the bottom of bracing or strutting arrangement is fixed with base through after upper plate and lower roof plate, and the outer wall of bracing or strutting arrangement is sheathed with adjusting device; Be provided with pressurizer in described upper plate, pressurizer is through upper plate, and pressurizer can carry out vertical in upper plate moves, and the end face indent of lower roof plate forms groove, and groove is arranged on immediately below pressurizer.In order to improve HRB500 reinforcement welding joint quality, promote the application of high tensile reinforcement, for reinforcing bar when carrying out electroslag pressure welding, a kind of new pressure structure proposed, object is that increasing steel bar flux press welding connects extruding force, makes joint area form the thick shape of pier, thus guarantees that splice bearing capacity 100% is greater than mother metal, result of the test joint all breaks in mother metal, in ductile fracture.The utility model is for a kind of pressure structure of vertical reinforcing bar electric slag pressure welding in reinforced concrete structure, specifically refers to that the pressue device adopting hydraulic oil pump, oil cylinder and pressurizing frame to be formed increases reinforcement welding extruding force.Special welding pressue device is utilized to increase extruding force in the extrusion process of welding; Add pressure power can adopt manually or electric oil pump, pressure process can realize automatically and manually switch; First by testing and calculate the minimum extruding force and oil cylinder hydraulic intensity of determining that different-diameter reinforcing bar needs, before welding, intensity is set by hydraulic stop; After extruding, splice cross section increase multiple can ensure that strength of joint is greater than mother metal completely.
Bracing or strutting arrangement is two bolt columns, pressurizer is arranged between bolt column, adjusting device is adjusting nut, adjusting nut is divided into adjusting nut and lower adjusting nut, upper adjusting nut and lower adjusting nut are all linked on the outer wall of bolt column, and upper adjusting nut is arranged on the top of upper plate, and lower adjusting nut is arranged on the below of lower roof plate, the outer wall of bolt column is sheathed with spring, and spring is arranged between upper plate and lower roof plate; The bottom of bolt column passes perpendicularly through upper plate and fixes with vertical with base after lower roof plate.The structure of bolt column is simple, and there is screw thread at its two, be convenient to screwing of adjusting nut, and use cost is low.
Pressurizer is preferably oil cylinder, and is arranged by the center line of oil cylinder and the center line coincidence of upper plate, and oil cylinder can carry out vertical in upper plate moves, and oil cylinder is connected with oil pipe, and oil pipe is connected with oil pump as actuating unit.
To sum up, the beneficial effects of the utility model are: this apparatus structure is simple, reliable in quality, be easy to ensure quality of weld joint, add steel bar flux press welding and connect extruding force, make joint area form the thick shape of pier, thus guarantee that splice bearing capacity 100% is greater than mother metal, result of the test joint all breaks in mother metal, in ductile fracture.
Accompanying drawing explanation
Fig. 1 is traditional steel bar flux press welding fixture schematic diagram;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the weld jig schematic diagram after combination.
Mark and corresponding parts title in accompanying drawing: 1-operating grip; 2-rule; 3-support column; 4-bracing frame; 5-lower chuck; 6-upper grip; 7-pull bar; 8-backstay; 9-upper plate; 10-upper reinforcing bar; 11-lower roof plate; 12-base; 13-lower reinforcing bar; 14-weldering bag; 15-spring; 16-upper adjusting nut; 17-bolt column; 18-oil cylinder; 19-oil pipe; 20-groove; 21-lower adjusting nut.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of steel bar flux press welding test pressue device, comprise upper plate 9, lower roof plate 11 and base 12, described lower roof plate 11 is arranged between upper plate 9 and base 12, upper plate 9 is arranged on directly over lower roof plate 11, and lower roof plate 11 is arranged on directly over base 12, and upper plate 9 is provided with bracing or strutting arrangement, the bottom of bracing or strutting arrangement is through upper plate 9 and lower roof plate 11 is rear and base 12 is fixed, and the outer wall of bracing or strutting arrangement is sheathed with adjusting device; Be provided with pressurizer in described upper plate 9, pressurizer is through upper plate 9, and pressurizer can carry out vertical in upper plate 9 moves, and the end face indent of lower roof plate 11 forms groove 20, and groove 20 is arranged on immediately below pressurizer; Bracing or strutting arrangement is two bolt columns 17, pressurizer is arranged between bolt column 17, adjusting device is adjusting nut, adjusting nut is divided into adjusting nut 16 and lower adjusting nut 21, upper adjusting nut 16 and lower adjusting nut 21 are all linked on the outer wall of bolt column 17, and upper adjusting nut 16 is arranged on the top of upper plate 9, and lower adjusting nut 21 is arranged on the below of lower roof plate 11, the outer wall of bolt column 17 is sheathed with spring 15, and spring 15 is arranged between upper plate 9 and lower roof plate 11; The bottom of bolt column 17 passes perpendicularly through upper plate 9 and fixes with vertical with base 12 after lower roof plate 11; Pressurizer is preferably oil cylinder 18, and the center line of the center line of oil cylinder 18 and upper plate 9 overlaps, and oil cylinder 18 can carry out vertical in upper plate 9 moves, and oil cylinder 18 is connected with oil pipe 19, and oil pipe 19 is connected with oil pump.Reinforcing bar adopt traditional weld jig (see figure 1) carry out electroslag pressure welding successively process be: install reinforcing bar, upper reinforcing bar 10 adopts upper grip 6 to clamp, lower reinforcing bar 13 adopts lower chuck 5 to clamp, bracing frame 4 adopts gusseted, keep the stability of fixture, open electric current and carry out electroslag, operating personnel hold with a firm grip operating grip 1 firmly pressure, the effect of pull bar 7 makes upper grip 6 can move on support column 3, backstay 8 keeps its moving stability, the lower reinforcing bar 13 of upper reinforcing bar 10 extruding downwards, weldering bag 14 is formed between upper reinforcing bar 10 and lower reinforcing bar 13, carried out, after extrusion process, pressue device (see figure 2) is installed, in installation process, reinforcing bar and fixture are not dismantled, and keep fixing, pressue device is put in fixture front, adjustment base 12 position, reinforcing bar upper end is made to be in immediately below oil cylinder 18 center of upper plate 9, reinforcing bar lower end is in groove 20 center of lower roof plate 11, reinforcing bar is clamped by adjusting nut, reinforcing bar is kept not loosen as shown in Figure 3, fix rear unlatching oil pump, hydraulic oil is injected into oil cylinder 18 by hydraulic oil 19 pipe, pressurizeed by oil cylinder 18 pairs of reinforcing bars again, after pressurization, now splice is still in the parcel of solder flux, joint area has very high temperature, reinforcing bar is after being subject to enough large extruding, mushrooming deformation is produced at joint welding and heat affected area, distortion size is shown by the rule 2 of the upper grip displacement of support column 3, pressure about 30 seconds are maintained after pressurization, open oil pump relief valve and clamping fixture head pressue device and remove fixture, solve HRB500 reinforcing bar carry out electroslag pressure welding after joint break in weld seam or heat affected area, and the situation in brittle fracture occurs.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; every according to technology of the present utility model, method in fact to any simple modification, equivalent variations that above embodiment is done, all fall within protection domain of the present utility model.
Claims (4)
1. a steel bar flux press welding test pressue device, it is characterized in that, comprise upper plate (9), lower roof plate (11) and base (12), described lower roof plate (11) is arranged between upper plate (9) and base (12), upper plate (9) is arranged on directly over lower roof plate (11), lower roof plate (11) is arranged on directly over base (12), (9) are provided with bracing or strutting arrangement to upper plate, the bottom of bracing or strutting arrangement is fixed with base (12) afterwards through upper plate (9) and lower roof plate (11), and the outer wall of bracing or strutting arrangement is sheathed with adjusting device; Described upper plate is provided with pressurizer in (9), pressurizer is through upper plate (9), and pressurizer can carry out vertical in upper plate (9) moves, the end face indent of lower roof plate (11) forms groove (20), and groove (20) is arranged on immediately below pressurizer.
2. a kind of steel bar flux press welding test pressue device according to claim 1, it is characterized in that, described bracing or strutting arrangement is two bolt columns (17), pressurizer is arranged between bolt column (17), adjusting device is adjusting nut, adjusting nut is divided into adjusting nut (16) and lower adjusting nut (21), upper adjusting nut (16) and lower adjusting nut (21) are all linked on the outer wall of bolt column (17), and upper adjusting nut (16) is arranged on the top of upper plate (9), lower adjusting nut (21) is arranged on the below of lower roof plate (11), the outer wall of bolt column (17) is sheathed with spring (15), spring (15) is arranged between upper plate (9) and lower roof plate (11).
3. a kind of steel bar flux press welding test pressue device according to claim 2, is characterized in that, the bottom of described bolt column (17) passes perpendicularly through upper plate (9) and fixes with lower roof plate (11) is vertical with base (12) afterwards.
4. a kind of steel bar flux press welding test pressue device according to claim 1, it is characterized in that, described pressurizer is oil cylinder (18), the center line of oil cylinder (18) and the center line of upper plate (9) overlap, and oil cylinder (18) can carry out vertical in upper plate (9) moves, oil cylinder (18) is connected with oil pipe (19), and oil pipe (19) is connected with oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404463.4U CN204657736U (en) | 2015-06-12 | 2015-06-12 | A kind of steel bar flux press welding test pressue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404463.4U CN204657736U (en) | 2015-06-12 | 2015-06-12 | A kind of steel bar flux press welding test pressue device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204657736U true CN204657736U (en) | 2015-09-23 |
Family
ID=54128169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520404463.4U Expired - Fee Related CN204657736U (en) | 2015-06-12 | 2015-06-12 | A kind of steel bar flux press welding test pressue device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204657736U (en) |
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2015
- 2015-06-12 CN CN201520404463.4U patent/CN204657736U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |