CN211839877U

CN211839877U - Steel pipe socket joint type flexible interface manufacturing clamp

Info

Publication number: CN211839877U
Application number: CN202020393993.4U
Authority: CN
Inventors: 刘烨; 谢国斌; 肖永成; 蒲梦雅; 易建军; 刘成坤
Original assignee: Ziyang Petroleum Steel Pipe Co ltd; China National Petroleum Corp; Baoji Petroleum Steel Pipe Co Ltd
Current assignee: Ziyang Petroleum Steel Pipe Co ltd; China National Petroleum Corp; Baoji Petroleum Steel Pipe Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-03
Anticipated expiration: 2030-03-25

Abstract

The utility model provides a steel pipe socket joint formula flexible interface preparation anchor clamps, including last centre gripping frame, lower centre gripping frame, upper die grip ring, bed die grip ring, upper die, bed die and guide post, the guide post is vertical to be set up and with upper and lower centre gripping frame sliding fit, upper die grip ring demountable installation is in last centre gripping frame, bed die grip ring demountable installation is in lower centre gripping frame, the upper die is installed in the bed die grip ring, the bed die is installed in the bed die grip ring, and upper die and bed die enclose into circular die cavity; the upper clamping frame and the lower clamping frame are connected with a lifting driving mechanism. When the socket joint type flexible joint is used, one end of a steel pipe is conveyed into a cavity defined by the upper die and the lower die by using conventional conveying equipment, and then the steel pipe is expanded by using a steel pipe end expanding machine to complete manufacturing of the socket joint type flexible joint. After the fixture is used, the steel pipe socket type flexible interface is more convenient to manufacture, the efficiency is higher, and the cost is lower.

Description

Steel pipe socket joint type flexible interface manufacturing clamp

Technical Field

The utility model belongs to the technical field of steel pipe interface manufacturing and specifically relates to a steel pipe socket joint formula flexible interface preparation anchor clamps.

Background

In the construction of long-distance and large-caliber water pipelines in China, the used pipes are mainly prestressed steel cylinder concrete pipes (PCCP pipes), nodular cast iron pipes, steel pipes, glass fiber reinforced plastic sand inclusion pipes and the like; wherein, PCCP pipe and nodular cast iron pipe are dominant, and the amount of steel pipe is little. The main reason that the proportion of the steel pipes in the water conveying pipeline is less is that because the PCCP pipe and the nodular cast iron pipe have a common characteristic, the pipe pipes are in socket joint type flexible connection when in butt joint, the construction efficiency is high, the cost is low, and the connection form of the domestic buried steel pipes generally adopts a field butt welding method at present, and because the water conveying steel pipes are large in relative caliber and large in diameter-thickness ratio, the pipe orifice rigidity is low, the ovality is large, the butt joint of the steel pipes is difficult, and the welding defects are easy to occur.

At present, the socket flexible joint of the domestic water delivery steel pipe has more forms, but the manufacturing equipment of the socket flexible joint of the steel pipe is immature, and the steel pipe in a horizontal state is generally lifted to be in a vertical state, and then the socket is manufactured. The mode has higher requirement on factory hoisting equipment, or the equipment is arranged below the terrace through excavation with large earth volume, the equipment investment or the civil engineering cost is higher, and the steel pipe hoisting has safety risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a steel pipe socket joint formula flexible interface preparation anchor clamps is provided, uses with the supporting of current conventional steel pipe end expanding machine, and in the flexible interface preparation process of socket joint formula, steel-pipe axis level realizes the transport of steel pipe through conventional transmission equipment, can make the flexible interface of steel pipe socket joint formula more conveniently, and the equipment investment is low.

The utility model provides a technical scheme that its technical problem adopted is: the steel pipe socket joint type flexible interface manufacturing fixture comprises an upper clamping frame, a lower clamping frame, an upper die clamping ring, a lower die clamping ring, an upper die, a lower die and a guide post, wherein the guide post is vertically arranged and is in sliding fit with the upper clamping frame and the lower clamping frame; the upper clamping frame is connected with a lifting driving mechanism.

Furthermore, the bottom of the upper clamping frame is provided with a vertical pin base, the top of the lower clamping frame is provided with a pin base groove, and the pin base is inserted into the pin base groove and is connected with the lower clamping frame through a horizontal positioning pin.

Further, the positioning pin is connected with a locking driving mechanism.

Further, the locking driving mechanism is a hydraulic cylinder.

Further, the lifting driving mechanism is a hydraulic cylinder.

Furthermore, one end of the hydraulic cylinder is connected with the upper clamping frame, and the lower end of the hydraulic cylinder is connected with the lower clamping frame.

Further, still include the base, the lower extreme of guide post is fixed on the base, and the guide post runs through centre gripping frame and lower centre gripping frame, the guide post lower part be provided with the external screw thread and with external screw thread complex adjusting nut, adjusting nut supports centre gripping frame down.

Furthermore, the two sides of the upper clamping frame and the lower clamping frame are provided with a plurality of connecting plates, the length direction of each connecting plate is radial to the inner cavity of the upper clamping frame and the inner cavity of the lower clamping frame, two connecting holes are formed in each connecting plate, and the upper die clamping ring and the lower die clamping ring are connected with the connecting plates through screws.

Furthermore, the upper die is installed in the upper die clamping ring through screws, and the lower die is installed in the lower die clamping ring through screws.

The utility model has the advantages that: when the socket joint type flexible joint is used, one end of a steel pipe is conveyed into a cavity defined by the upper die and the lower die by using conventional conveying equipment, and then the steel pipe is expanded by using a steel pipe end expanding machine to complete manufacturing of the socket joint type flexible joint. After the fixture is used, the steel pipe socket type flexible interface is more convenient to manufacture, the efficiency is higher, and the cost is lower.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

reference numerals: 1-upper clamping frame; 2-lower clamping frame; 3-upper mold clamping ring; 4-lower mold clamping ring; 5, mounting a mold; 6, lower die; 7, a guide post; 8, a lifting driving mechanism; 9-pin seat; 10, positioning pins; 11-locking driving mechanism; 12-a connecting plate; 13-a base; and 14, adjusting the nut.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 and 2, the steel pipe socket joint type flexible interface manufacturing fixture of the present invention comprises an upper clamping frame 1, a lower clamping frame 2, an upper mold clamping ring 3, a lower mold clamping ring 4, an upper mold 5, a lower mold 6 and a guide post 7, wherein the guide post 7 is vertically arranged and is in sliding fit with the upper clamping frame 1 and the lower clamping frame 2, the upper mold clamping ring 3 is detachably mounted in the upper clamping frame 1, the lower mold clamping ring 4 is detachably mounted in the lower clamping frame 2, the upper mold 5 is mounted in the upper mold clamping ring 3, the lower mold 6 is mounted in the lower mold clamping ring 4, and the upper mold 5 and the lower mold 6 enclose a circular cavity; the upper clamping frame 1 is connected with a lifting driving mechanism 8.

The lower surface of the upper clamping frame 1 and the upper surface of the lower clamping frame 2 are both provided with cavities for installing components such as an upper die clamping ring 3, a lower die clamping ring 4, an upper die 5, a lower die 6 and the like, and the cavities are semicircular. The guide post 7 plays a role in guiding, the moving tracks of the upper clamping frame 1 and the lower clamping frame 2 are kept vertical, and dislocation between the upper clamping frame 1 and the lower clamping frame 2 is avoided, so that the manufacturing precision of the steel pipe socket type flexible interface is ensured.

Go up mould grip ring 3 and be used for fixed mould 5, bed die grip ring 4 is used for fixed bed die 6, goes up mould grip ring 3 and bed die grip ring 4 and all has semicircular inner chamber. Go up mould grip ring 3 and 4 demountable installation of bed die grip ring, can change not unidimensional last mould grip ring 3, bed die grip ring 4, go up mould 5 and bed die 6 to obtain not equidimensional die cavity, thereby can be used to the preparation of the socket joint formula flexible interface of the steel pipe of multiple different external diameters.

Specifically, go up mould grip ring 3 and bed die grip ring 4 and can adopt current arbitrary demountable installation mode installation, preferred, the both sides of going up centre gripping frame 1 and lower centre gripping frame 2 all are provided with polylith connecting plate 12, the length direction of connecting plate 12 is that the inner chamber of last centre gripping frame 1 and lower centre gripping frame 2 is radial, is provided with two connecting holes on connecting plate 12, it links to each other with connecting plate 12 through the screw to go up mould grip ring 3 and bed die grip ring 4. Through the screw connection, easy dismounting, and not unidimensional last mould clamping ring 3 and the connecting hole on connecting plate 12 of lower mould clamping ring 4 accessible screw link to each other to the position accuracy of mould 5 and lower mould 6 in the assurance.

The upper die 5 and the lower die 6 are semicircular and can be enclosed into a circular cavity, and the cavity can be used for forming a socket type flexible connector of a steel pipe. Go up mould 5 and bed die 6 respectively with last mould grip ring 3 and 4 welded connection of bed die grip ring etc. preferably, go up mould 5 through the mounting screw in last mould grip ring 3, bed die 6 passes through the mounting screw in bed die grip ring 4, and easy dismounting can change not unidimensional last mould 5 and bed die 6.

The lifting driving mechanism 8 is used for pushing the upper clamping frame 1 to move up and down so as to realize the closing and the separation of the upper die 5 and the lower die 6. The lifting driving mechanism 8 may be a ball screw mechanism driven by a motor, etc., and preferably adopts a hydraulic cylinder, and particularly, the hydraulic cylinder may be installed above the upper clamping frame 1, but a supporting device for installing the hydraulic cylinder is required to be provided. As a more preferred embodiment: one end of the hydraulic cylinder is connected with the upper clamping frame 1, and the lower end of the hydraulic cylinder is connected with the lower clamping frame 2. The base 13 plays the effect of supporting whole equipment, and the vertical setting of pneumatic cylinder, the cylinder body links to each other with centre gripping frame 2 down, and the piston rod links to each other with last centre gripping frame 1, can reduce equipment volume.

The utility model discloses, still include base 13, the lower extreme of guide post 7 is fixed on base 13, and guide post 7 runs through centre gripping frame 1 and lower

centre gripping frame

2, 7 lower parts of guide post be provided with the external screw thread and with external screw-thread fit's adjusting nut 14, adjusting nut 14 supports centre gripping frame 2 down. By turning the adjusting nut 14, the height of the lower clamping frame 2 can be adjusted, thereby changing the center height of the cavity.

The inner wall of mould 5 and bed die 6 receives great effort on the during operation, need be to go up mould 5 and bed die 6 outside application fastening effort in order to remain stable, can adopt lift actuating mechanism 8 to last mould 5 and continuously exert pressure, nevertheless need consume the energy, consequently, be provided with vertical key seat 9 in the bottom of last centre gripping frame 1, the top of centre gripping frame 2 is provided with the key seat groove down, all is provided with the horizontally pinhole on the lateral wall of key seat groove and the key seat 9, key seat 9 inserts the key seat groove and links to each other with lower centre gripping frame 2 through horizontally locating pin 10. When the upper clamping frame 1 moves downwards, the pin seat 9 can be inserted into the pin seat groove, then the positioning pin 10 is inserted into the pin hole, so that the pin seat 9 and the lower clamping frame 2 are connected, the locking effect is achieved, the relative movement of the upper clamping frame 1 and the lower clamping frame 2 is avoided, the stability of the upper die 5 and the lower die 6 is ensured, and the forming precision of the socket type flexible interface is further ensured.

The positioning pin 10 can be manually inserted and pulled out, and for convenience of operation, the positioning pin 10 is connected with a locking driving mechanism 11, and the locking driving mechanism 11 is a hydraulic cylinder.

The working process of the device is as follows: the corresponding last mould grip ring 3 of size specification installation according to the steel pipe, bed die grip ring 4, go up mould 5 and bed die 6, utilize adjusting nut 14 to adjust the height of centre gripping frame 2 down, adjust the central elevation to suitable position, utilize lift actuating mechanism 8 to drive the removal of last centre gripping frame 1, make and go up centre gripping frame 1 and bed gripping frame 2 and compress tightly, it encloses into the die cavity to go up mould 5 and bed die 6 this moment, simultaneously, key seat 9 inserts the pin saddle groove, insert locating pin 10 into the pinhole again, will go up centre gripping frame 1 and lock down centre gripping frame 2, prevent to go up centre gripping frame 1 and bed gripping frame 2 and remove. And then conveying one end of the steel pipe into the cavity by using conventional conveying equipment, and finally expanding the steel pipe by using a steel pipe end expanding machine, wherein the end part of the steel pipe forms a socket type flexible interface in the cavity. After the manufacturing of the socket type flexible interface is completed, the positioning pin 10 is pulled out, the lifting driving mechanism 8 drives the upper clamping frame 1 to reset, and the transmission equipment transports the steel pipe away.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The steel pipe socket joint formula flexible interface preparation anchor clamps, its characterized in that: the clamping device comprises an upper clamping frame (1), a lower clamping frame (2), an upper die clamping ring (3), a lower die clamping ring (4), an upper die (5), a lower die (6) and guide columns (7), wherein the guide columns (7) are vertically arranged and are in sliding fit with the upper clamping frame (1), the upper die clamping ring (3) is detachably mounted in the upper clamping frame (1), the lower die clamping ring (4) is detachably mounted in the lower clamping frame (2), the upper die (5) is mounted in the upper die clamping ring (3), the lower die (6) is mounted in the lower die clamping ring (4), and the upper die (5) and the lower die (6) enclose a circular cavity; the upper clamping frame (1) is connected with a lifting driving mechanism (8).

2. The steel pipe socket type flexible interface manufacturing jig of claim 1, characterized in that: the bottom of the upper clamping frame (1) is provided with a vertical pin boss (9), the top of the lower clamping frame (2) is provided with a pin boss groove, and the pin boss (9) is inserted into the pin boss groove and is connected with the lower clamping frame (2) through a horizontal positioning pin (10).

3. The steel pipe socket type flexible interface manufacturing jig of claim 2, characterized in that: the positioning pin (10) is connected with a locking driving mechanism (11).

4. The steel pipe socket type flexible interface manufacturing jig of claim 3, characterized in that: the locking driving mechanism (11) is a hydraulic cylinder.

5. The steel pipe socket type flexible interface manufacturing jig of claim 1, characterized in that: the lifting driving mechanism (8) is a hydraulic cylinder.

6. The steel pipe socket type flexible interface manufacturing jig of claim 5, characterized in that: one end of the hydraulic cylinder is connected with the upper clamping frame (1), and the lower end of the hydraulic cylinder is connected with the lower clamping frame (2).

7. The steel pipe socket type flexible interface manufacturing jig of claim 1, characterized in that: still include base (13), the lower extreme of guide post (7) is fixed on base (13), and last centre gripping frame (1) and lower centre gripping frame (2) are run through in guide post (7), guide post (7) lower part be provided with the external screw thread and with external screw thread complex adjusting nut (14), centre gripping frame (2) down are supported in adjusting nut (14).

8. The steel pipe socket type flexible interface manufacturing jig of claim 1, characterized in that: go up the both sides of centre gripping frame (1) and lower centre gripping frame (2) and all be provided with polylith connecting plate (12), the length direction of connecting plate (12) is the inner chamber radial of last centre gripping frame (1) and lower centre gripping frame (2), is provided with two connecting holes on every connecting plate (12), it links to each other with connecting plate (12) through the screw to go up mould grip ring (3) and bed die grip ring (4).

9. The steel pipe socket type flexible interface manufacturing jig of claim 1, characterized in that: the upper die (5) is installed in the upper die clamping ring (3) through screws, and the lower die (6) is installed in the lower die clamping ring (4) through screws.