CN220880070U

CN220880070U - Aviation conduit elbow forming die

Info

Publication number: CN220880070U
Application number: CN202322563340.2U
Authority: CN
Inventors: 陈康; 王洪洋
Original assignee: Star Arrow Avic Chengdu Machinery Manufacturing Co ltd
Current assignee: Star Arrow Avic Chengdu Machinery Manufacturing Co ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-05-03
Anticipated expiration: 2033-09-21

Abstract

The utility model discloses an aviation conduit elbow forming die which comprises a lower die holder and an upper die holder arranged right above the center of the top of the lower die holder, wherein a first telescopic rod is fixedly arranged on the surface of the upper die holder, the bottom of a push rod of the first telescopic rod is fixedly connected with an active extrusion wheel, and the middle of the top of the lower die holder is fixedly connected with a bidirectional motor. This aviation conduit return bend moulded die utilizes bi-directional motor to drive the screw thread post and makes two horizontal spacing to both sides equidistance extend and remove, and then makes two spacing wheels to both sides equidistance remove, and the second telescopic link is used to drive vertical spacing and carries out vertical lift, adjusts the vertical position of two spacing wheels for interval between two spacing wheels and interval between the initiative extrusion wheel can be free adjust, and then can reach initiative extrusion wheel and two spacing wheel laminating extruded purpose, realizes upper and lower both sides extrusion, guarantees the yield of conduit return bend.

Description

Aviation conduit elbow forming die

Technical Field

The utility model relates to the technical field of bend forming, in particular to an aviation conduit bend forming die.

Background

In the cold press forming device of the bent pipe, the bending part of the pipe needs to be clamped by a die. The general mould is divided into two parts, namely a fixed mould and a movable mould. The fixed die and the movable die are respectively provided with an arc groove with the same radius, the cross section of the arc groove is a semicircle, and the cross sections of the arc grooves of the fixed die and the movable die are combined to form a perfect circle. The pipeline is placed between the circular arc grooves of the fixed die and the movable die, and is bent along with the rotation of the movable die, and in the bending process, the part of the pipeline which is being bent is always clamped in the die with the circular arc groove with the right circular cross section. However, the device has the problems of complex structure and low bending efficiency.

The cold-pressing pipe bending device comprises a pipe bending device, wherein a pipe is supported by using two lower groove-shaped pipe bending dies, a vertical hydraulic press drives an upper groove-shaped pipe bending die to directly press down the pipe, and a repairing upper die and a repairing lower die which are closed to form a complete circle with an inner cavity cross section are used for repairing the pipe; the cold pressing pipe bending device is used at first without considering deformation, the pipe is bent by pressing down once, and the deformed pipe after bending is repaired by the pipe bending deformation repair device, so that the device is simple, the efficiency is high, and the manpower is reduced. Because the pipe is allowed to be bent to a certain extent, the diameter of the circular arc groove of the lower die of the bent pipe is not smaller than the diameter of the pipe, the diameter of the pipe cold-pressed by the device is not smaller than or equal to the diameter of the pipe, the diameter of the circular arc groove of the lower die of the bent pipe is in a certain range, the diameter of the circular arc groove of the upper die of the bent pipe can be the upper limit of the diameter range of the pipe, and the bending die set can be suitable for various diameter pipes, so that the cost is saved.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides an aviation conduit elbow forming die, which solves the problems that the subsequent repairing device is difficult to repair and the yield of finished products is low because the space between two elbow lower dies is fixed, so that the phenomena of external angle cracking, internal angle wrinkling and conduit diameter necking are easy to occur when an elbow upper die is extruded downwards.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an aviation conduit elbow forming die, includes the die holder and sets up the upper die base directly over the die holder top center, the surface fixed mounting of upper die base has first telescopic link, the bottom fixedly connected with initiative extrusion wheel of first telescopic link push rod, the middle part fixedly connected with bi-directional motor at die holder top, the equal fixedly connected with screw thread post of surface of bi-directional motor output shaft to the screw thread trend of two screw thread posts is completely opposite, the equal sliding connection of left and right sides at die holder top has horizontal spacing, two the surface of screw thread post respectively with the internal surface threaded connection of two horizontal spacing, two the equal sliding connection of internal surface of horizontal spacing has spacing to limit the wheel, the top fixedly connected with second telescopic link of die holder, the surface of second telescopic link push rod passes through connecting block fixedly connected with vertical spacing, and the internal surface of vertical spacing both sides respectively with the surface sliding connection of two spacing wheels.

Preferably, the front side and the rear side of the limiting wheel are fixedly connected with positioning columns, the tops of the two transverse limiting frames are provided with first clamping grooves, and the outer surfaces of the positioning columns are in sliding connection with the inner surfaces of the first clamping grooves.

Preferably, the left side and the right side of the longitudinal limiting frame are provided with second clamping grooves, and the outer surfaces of the positioning columns are in sliding connection with the inner surfaces of the second clamping grooves.

Preferably, the left side and the right side at the top of the lower die holder are fixedly connected with auxiliary plates, and the outer surfaces of one ends of the two threaded columns are rotationally connected with one side opposite to the two auxiliary plates through bearings.

Preferably, the top of upper die base is provided with the recess with first telescopic link looks adaptation, the bottom of upper die base is through connecting rope fixedly connected with protection spring strip.

Preferably, the front side and the rear side of the left side and the right side of the top of the lower die holder are respectively provided with a sliding groove, and the bottoms of the two longitudinal limiting frames are respectively fixedly connected with a sliding block matched with the sliding grooves.

Advantageous effects

The utility model provides an aviation conduit elbow forming die. Compared with the prior art, the method has the following beneficial effects:

(1) This aviation pipe return bend moulded die, there is first telescopic link through the fixed surface mounting at the upper die base, the bottom fixedly connected with initiative extrusion wheel of first telescopic link push rod, the middle part fixedly connected with bi-directional motor at die holder top, the equal fixedly connected with screw thread post in surface of bi-directional motor output shaft, and the screw thread trend of two screw thread posts is completely opposite, the equal sliding connection in left and right sides at die holder top has horizontal spacing, the surface of two screw thread posts respectively with the internal surface threaded connection of two horizontal spacing, the equal sliding connection of the internal surface of two horizontal spacing has spacing wheel, the top fixedly connected with second telescopic link of die holder, the surface of second telescopic link push rod passes through connecting block fixedly connected with vertical spacing, and the internal surface of vertical spacing both sides respectively with the surface sliding connection of two spacing wheels, the die holder down is cooperated, the upper die base, first telescopic link, initiative extrusion wheel, bi-directional motor, the screw thread post, horizontal spacing, spacing wheel, the setting of second telescopic link and vertical spacing, utilize bi-directional motor drive screw thread post make two horizontal spacing frame can extend to both sides to remove, and make two horizontal spacing wheel, and make two horizontal spacing frame and the inside surface threaded connection, the equal distance between two spacing wheels, and the vertical spacing wheel of two telescopic link drive the two spacing wheels, and the two vertical extrusion wheel that can be adjusted to the spacing between the two spacing wheels, and the two vertical extrusion wheel that can reach the good extrusion ratio between the two sides, and the two spacing wheels can be adjusted, and the extrusion wheel is adjusted, and the end-down.

(2) This aviation pipe return bend moulded die is provided with the recess with first telescopic link looks adaptation through the top of upper die base, and the bottom of upper die base is through connecting rope fixedly connected with protection spring strip, and cooperation recess and the setting of spring protection strip utilize the recess to protect first telescopic link to deposit to add and establish the spring protection strip, can directly insert the spring protection strip inside the pipe when carrying out the return bend operation, carry out the atress to the internal surface of pipe and support, further reduce the probability that the pipe damaged and warp.

Drawings

FIG. 1 is a schematic view of the external structure of the present utility model;

FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 1;

Fig. 3 is a partial enlarged view of the present utility model at B in fig. 1.

In the figure: 1. a lower die holder; 2. an upper die holder; 3. a first telescopic rod; 4. a driving extrusion wheel; 5. a bi-directional motor; 6. a threaded column; 7. a transverse limit frame; 8. a limiting wheel; 9. a second telescopic rod; 10. a longitudinal limit frame; 11. positioning columns; 12. a first clamping groove; 13. a second clamping groove; 14. an auxiliary plate; 15. a groove; 16. a protective spring strip; 17. a chute; 18. a sliding block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the aviation conduit elbow forming die comprises a lower die holder 1 and an upper die holder 2 arranged right above the center of the top of the lower die holder 1, wherein auxiliary plates 14 are fixedly connected to the left and right sides of the top of the lower die holder 1, the outer surfaces of one ends of two threaded columns 6 are rotationally connected with one sides of the two auxiliary plates 14 through bearings, the two threaded columns 6 are limited by the auxiliary plates 14, the stable rotation of the threaded columns 6 is ensured, a groove 15 matched with a first telescopic rod 3 is arranged at the top of the upper die holder 2, a protection spring strip 16 is fixedly connected to the bottom of the upper die holder 2 through a connecting rope, the first telescopic rod 3 is protected and stored by the groove 15 in cooperation with the arrangement of the protection spring strip 16, and the protection spring strip 16 is additionally arranged, so that the protection spring strip 16 can be directly inserted into a conduit during the elbow operation, the inner surface of the guide pipe is stressed and supported, the probability of damage and deformation of the guide pipe is further reduced, a first telescopic rod 3 is fixedly arranged on the surface of an upper die holder 2, the first telescopic rod 3 is electrically connected with an external power supply, the control is carried out through a control switch, the bottom of a push rod of the first telescopic rod 3 is fixedly connected with an active extrusion wheel 4, the middle part of the top of a lower die holder 1 is fixedly connected with a bidirectional motor 5, the bidirectional motor 5 is electrically connected with the external power supply, the control is carried out through the control switch, the surfaces of output shafts of the bidirectional motor 5 are fixedly connected with threaded columns 6, the thread directions of the two threaded columns 6 are completely opposite, the left side and the right side of the top of the lower die holder 1 are both slidingly connected with transverse limiting frames 7, the front side and the rear side of the left side and the right side of the top of the lower die holder 1 are both provided with sliding grooves 17, the bottoms of the two longitudinal limiting frames 10 are both fixedly connected with sliding blocks 18 which are matched with the sliding grooves 17, the outer surfaces of the two threaded columns 6 are respectively in threaded connection with the inner surfaces of the two transverse limiting frames 7, the inner surfaces of the two transverse limiting frames 7 are respectively in sliding connection with a limiting wheel 8, grooved wheels which are matched with the size of a catheter are respectively arranged on the driving extrusion wheel 4 and the limiting wheel 8, positioning columns 11 are fixedly connected to the front side and the rear side of the limiting wheel 8, first clamping grooves 12 are respectively arranged at the tops of the two transverse limiting frames 7, the outer surfaces of the positioning columns 11 are in sliding connection with the inner surfaces of the first clamping grooves 12, second clamping grooves 13 are respectively arranged at the left side and the right side of the longitudinal limiting frames 10, the outer surfaces of the positioning columns 11 are in sliding connection with the inner surfaces of the second clamping grooves 13, a second telescopic rod 9 is fixedly connected to the top of the lower die holder 1, the second telescopic rod 9 is electrically connected with an external power supply, the control is carried out through a control switch, the surface of a push rod of the second telescopic rod 9 is fixedly connected with the longitudinal limiting frames 10 through a connecting block, the inner surfaces of the two sides of the longitudinal limiting frame 10 are respectively in sliding connection with the outer surfaces of the two limiting wheels 8, the lower die holder 1, the upper die holder 2, the first telescopic rod 3, the active extrusion wheel 4, the bidirectional motor 5, the threaded column 6, the transverse limiting frame 7, the limiting wheels 8, the second telescopic rod 9 and the longitudinal limiting frame 10 are matched, the threaded column 6 is driven by the bidirectional motor 5 to enable the two transverse limiting frames 7 to extend and move towards the two sides at equal intervals, the two limiting wheels 8 are further moved towards the two sides at equal intervals, the longitudinal limiting frame 10 is driven by the second telescopic rod 9 to longitudinally lift and lower the two limiting wheels 8, the distance between the two limiting wheels 8 and the distance between the active extrusion wheel 4 can be freely adjusted, the purpose of bonding and extrusion of the active extrusion wheel 4 and the two limiting wheels 8 can be achieved, realize the extrusion of the upper side and the lower side, and ensure the yield of the finished products of the conduit bent pipes.

And all that is not described in detail in this specification is well known to those skilled in the art.

When the automatic pipe bending device is used, the control switch of the bidirectional motor 5 is started to drive the two threaded columns 6 to rotate, the two transverse limiting frames 7 simultaneously move outwards or simultaneously move inwards, the distance center of the two limiting wheels 8 is always on the vertical line of the circle center of the active extrusion wheel 4, after the distance is adjusted, the pipe is directly placed on the two limiting wheels 8, then the second telescopic rod 9 is started, the longitudinal limiting frames 10 are pushed to enable the limiting wheels 8 to be continuously close to the active extrusion wheel 4, the pipe is attached to the inner surfaces of the active extrusion wheel 4 and the two limiting wheels 8, the protective spring strip 16 is plugged into the pipe, and then the control switch of the first telescopic rod 3 is started to drive the active extrusion wheel 4 to downwardly extrude the pipe, so that pipe bending operation is carried out.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an aviation conduit return bend moulded die, includes die holder (1) and upper die holder (2) of setting directly over die holder (1) top center, its characterized in that: the surface fixed mounting of upper die base (2) has first telescopic link (3), the bottom fixedly connected with initiative extrusion wheel (4) of first telescopic link (3) push rod, the middle part fixedly connected with two-way motor (5) at die holder (1) top, the equal fixedly connected with screw thread post (6) of surface of two-way motor (5) output shaft to the screw thread trend of two screw thread posts (6) is completely opposite, the equal sliding connection of left and right sides at die holder (1) top has horizontal spacing (7), two the surface of screw thread post (6) respectively with the internal surface threaded connection of two horizontal spacing (7), two the equal sliding connection of internal surface of horizontal spacing (7) has spacing wheel (8), the top fixedly connected with second telescopic link (9) of die holder (1), the surface of second telescopic link (9) push rod is through connecting block fixedly connected with vertical spacing (10), and the internal surface of vertical spacing (10) both sides respectively with the surface sliding connection of two spacing wheels (8).

2. An aircraft duct elbow mold as defined in claim 1, wherein: the front side and the rear side of the limiting wheel (8) are fixedly connected with positioning columns (11), the tops of the two transverse limiting frames (7) are provided with first clamping grooves (12), and the outer surfaces of the positioning columns (11) are in sliding connection with the inner surfaces of the first clamping grooves (12).

3. An aviation conduit elbow mold as in claim 2, wherein: the left side and the right side of the longitudinal limiting frame (10) are respectively provided with a second clamping groove (13), and the outer surface of the positioning column (11) is in sliding connection with the inner surface of the second clamping groove (13).

4. An aircraft duct elbow mold as defined in claim 1, wherein: the left side and the right side at the top of the lower die holder (1) are fixedly connected with auxiliary plates (14), and the outer surfaces of one ends of the two threaded columns (6) are rotatably connected with one side opposite to the two auxiliary plates (14) through bearings.

5. An aircraft duct elbow mold as defined in claim 1, wherein: the top of upper die base (2) is provided with recess (15) with first telescopic link (3) looks adaptation, the bottom of upper die base (2) is through connecting rope fixedly connected with protection spring strip (16).

6. An aircraft duct elbow mold as defined in claim 1, wherein: sliding grooves (17) are formed in the front side and the rear side of the left side and the right side of the top of the lower die holder (1), and sliding blocks (18) matched with the sliding grooves (17) are fixedly connected to the bottoms of the two longitudinal limiting frames (10).