CN-224222452-U - Bulging integrated device with parallel double branch pipes

CN224222452UCN 224222452 UCN224222452 UCN 224222452UCN-224222452-U

Abstract

The utility model discloses an bulging integrated device for parallel double branch pipes, which comprises a forming die, a upsetting part and a movable punch, wherein the forming die comprises an upper die and a lower die which are used for forming a pipe blank, an inner cavity which is consistent with the shape of the double branch pipe is formed when the upper die and the lower die are closed, the upsetting part comprises a left side pressing plate and a right side pressing plate which are used for upsetting the pipe blank in the left-right radial direction, the left side pressing plate and the right side pressing plate are arranged in a gap between the upper die and the lower die, and the movable punch is respectively arranged at two ends of the pipe blank and is used for clamping the pipe blank and filling pressure in the pipe blank. The utility model simultaneously processes the tube blank through the upper die, the lower die, the left side pressing plate and the right side pressing plate, reduces the number of dies, simplifies the operation of working procedures, and realizes the integration of tube blank flattening preforming and double-branch hydraulic bulging process.

Inventors

CHEN MINGTAO
WU HONGCHAO
SONG WEIHUA
HU JINHAO
LIANG JUNWEI
YUAN ZEHAO
YANG YUHENG
WEN JIANZHONG

Assignees

韶关学院

Dates

Publication Date: 20260512
Application Date: 20241220

Claims (5)

1. The utility model provides an bulging integrated device of two branch pipes side by side, its characterized in that includes moulded die, upsetting part and removal drift, the moulded die is including being used for to the fashioned last mould of tube blank and bed die, go up mould and bed die form with the unanimous inner chamber of two branch pipe appearances when closed, upsetting part is including being used for right side clamp plate and the right side clamp plate that radial direction upsetted about the tube blank, left side clamp plate with the right side clamp plate sets up in the clearance of last mould and bed die, the removal drift sets up respectively at tube blank both ends for to the tube blank centre gripping is and to filling pressure in the tube blank, the removal drift includes key groove plate, polished rod, movable roof, spring and drift, the key groove plate is the frame shape, the polished rod is vertical to be set up in the key groove plate, the spring movable sleeve is established on the polished rod, the drift includes spacing end and holding end, spacing end movable sleeve is established on the polished rod, and is located the spring top, the holding end stretches out and with the key groove plate and with the movable roof fills pressure in the tube blank top one side of the sealing end.
2. A side-by-side double offset tube bulging integrated device according to claim 1, wherein at least one of said punches is provided with an inflation hole.
3. The bulging integrated device for the parallel double branch pipes according to claim 1, wherein the movable top plate is provided with a vertical dovetail groove, the limiting end of the punch is provided with a dovetail key, and the dovetail groove and the dovetail key are mounted in a matched mode and limit the punch to vertically move up and down.
4. The bulging integrated apparatus for a side-by-side double branch pipe according to claim 1, wherein the upper and lower ends of the polish rod are protruded out of the key groove plate and provided with threads, and the threads fix the polish rod on the key groove plate by being engaged with nuts.
5. The bulging integrated apparatus for side-by-side double offset tubes according to claim 1, wherein said movable top plate is fixed to the key groove plate by screws or bolts.

Description

Bulging integrated device with parallel double branch pipes Technical Field The utility model relates to the field of branch pipe pipeline manufacturing, in particular to a bulging integrated device for parallel double branch pipes. Background And the parallel double branch pipes are formed by adopting a hydraulic bulging technology, so that the integrated forming of the pipe fitting can be realized. Compared with the traditional stamping and welding process, the hydraulic bulging technology can reduce the weight of the part, improve the strength and rigidity of the part, ensure that the pipe fitting has no welding seam, and have the advantages of low production energy consumption, environment friendliness, energy conservation and the like. However, since the parallel double branch pipes have two parallel branch pipes, the axis feeding is difficult, and thus the parallel double branch pipes need to be formed in a multi-process manner. The large-diameter tube blank is adopted, the tube blank is flattened firstly, and then the flattened tube blank is placed into a parallel double-branch-tube forming die. And finally, after die assembly, applying hydraulic pressure to the flattened tube blank to align the double branch tubes. The prior forming technology has the problems of more working procedures, lower forming efficiency and the like, so how to form the parallel double branch pipes efficiently is a technical problem which needs to be solved by the technicians in the field at present. Disclosure of utility model In order to solve the problems of more working procedures, lower forming efficiency and the like existing in the prior forming technology, the utility model provides a bulging integrated device with parallel double branch pipes, which is beneficial to reducing the number of dies and simplifying the working procedure operation, and realizes the integration of tube blank flattening preforming and branch pipe hydraulic bulging process. The bulging integrated device comprises a forming die, a upsetting part and a movable punch, wherein the forming die comprises an upper die and a lower die for forming a tube blank, an inner cavity consistent with the shape of the double branch pipe is formed when the upper die and the lower die are closed, the upsetting part comprises a left side pressing plate and a right side pressing plate for upsetting the tube blank in the left-right radial direction, the left side pressing plate and the right side pressing plate are arranged in a gap between the upper die and the lower die, and the movable punch is respectively arranged at two ends of the tube blank and used for clamping the tube blank and filling pressure in the tube blank. Preferably, the movable punch comprises a key groove plate, a polish rod, a movable top plate, a spring and a punch, wherein the key groove plate is in a frame shape, the polish rod is vertically arranged in the key groove plate, the spring is movably sleeved on the polish rod, the punch comprises a limiting end and a clamping end, the limiting end is movably sleeved on the polish rod and is positioned above the spring, the clamping end extends out of the key groove plate and is in sealing contact with a pipe blank port, and the movable top plate covers the key groove plate on one side of the limiting end of the punch. Preferably, at least one of the punches is provided with an inflation hole. Preferably, the movable top plate is provided with a vertical dovetail groove, the limiting end of the punch is provided with a dovetail key, and the dovetail groove and the dovetail key are installed in a matched mode and limit the punch to vertically move. Preferably, the upper end and the lower end of the polish rod extend out of the key groove plate and are provided with threads, and the threads are matched with nuts to fix the polish rod on the key groove plate. Preferably, the movable top plate is fixed to the key groove plate by a screw or a bolt. The utility model simultaneously processes the tube blank through the upper die, the lower die, the left side pressing plate and the right side pressing plate, reduces the number of dies, simplifies the operation of working procedures, and realizes the integration of tube blank flattening preforming and double-branch hydraulic bulging process. Meanwhile, the device can process the tube blank with larger diameter into a double branch tube with smaller diameter, thereby reducing the processing cost. Drawings FIG. 1 is a front view of an bulging integrated apparatus of the present utility model incorporating side-by-side double offset tubes; FIG. 2 is a perspective view of an bulging integrated apparatus of the present utility model with side-by-side double offset tubes; FIG. 3 is an axial cross-sectional view of a moving punch assembly of the present utility model; FIG. 4 is a front view of the double branch pipe manufacturing apparatus without the tube blank placed; FIG. 5 is a front view of the double bran