CN118143114B - Integrated forming device and forming process for high-pressure tee joint machining - Google Patents

Abstract

The invention relates to the technical field of pipe processing, in particular to an integrated forming device and a forming process for high-pressure tee processing, wherein the integrated forming process for high-pressure tee processing comprises the steps of adopting the integrated forming device for high-pressure tee processing to process a pipe blank; the integrated forming device for the high-pressure tee joint machining comprises a frame, an upper die and a lower die, wherein the upper die and the lower die can be buckled to form a main pipe die cavity, a branch pipe die cavity communicated with the main pipe die cavity is arranged on the lower die, circulation channels for lubricating liquid to flow are formed in the circumferential side walls of the main pipe die cavity and the branch pipe die cavity, the two ends of the main pipe die cavity are respectively provided with a jacking part capable of sliding along the axial direction, and the jacking part is provided with a liquid injection hole used for filling fluid medium into the main pipe die cavity. Therefore, in the process of processing the pipe, lubricating liquid is filled into the main pipe die cavity, the branch pipe die cavity and the pipe blank through the circulation channel, so that friction force between the pipe blank and the main pipe die cavity and friction force between the pipe blank and the branch pipe die cavity are reduced.

Description

Integrated forming device and forming process for high-pressure tee joint machining

Technical Field

The invention relates to the technical field of pipe processing, in particular to an integrated forming device and a forming process for high-pressure tee joint processing.

Background

The tee joint is also called as a tee joint, a tee joint pipe fitting or a tee joint, and is mainly used for changing the flowing direction of fluid, and is generally formed by a straight pipe blank through an internal high-pressure forming process, wherein the internal high-pressure forming process is also called as hydraulic forming or hydraulic forming, and the internal high-pressure forming process is a material forming process which utilizes liquid as a forming medium and achieves the purpose of forming parts by controlling internal pressure and material flow.

In the related art, for example, chinese patent publication CN104084469B discloses a three-way pipe hydraulic forming device, when the three-way pipe hydraulic forming device is used, an axial force is applied by a push rod for synchronous extrusion and an internal hydraulic load is increased by adding liquid through a liquid injection hole, because a tubular blank and a main pipe die cavity are in clearance fit, when the internal forming pressure of the tubular blank is met, part of liquid injection medium can flow into a lubrication gap through a lubrication through hole, and because the lubrication gap is in a sealing state at two ends of the main pipe die cavity, under the condition of high pressure, the liquid injection medium can be filled between the tubular blank and the main pipe die cavity to realize lubrication in the extrusion deformation process, and meanwhile, because a branch pipe die cavity is in a relatively non-sealing state, the liquid injection medium for lubrication can flow between the branch pipe and the branch pipe die cavity to reduce friction between the two.

The three-way pipe hydraulic forming device improves the production efficiency of the three-way pipe to a certain extent, but in the actual working process, the fact that the roughness of the outer peripheral wall of the pipe blank is different easily causes inconsistent lubrication degrees of different positions of the outer peripheral wall of the pipe blank in the high-pressure forming process in the pipe blank, and further causes uneven traction deformation of the outer surface layer and the inner surface layer of the pipe blank when the pipe blank is subjected to plastic deformation, so that the forming of an extrusion deformation area is not facilitated, and finally the thickness of the whole pipe is uneven, and the forming quality of the three-way pipe is affected.

Disclosure of Invention

Based on the above, it is necessary to provide an integrated molding device and molding process for high-pressure tee processing, aiming at the problems of poor molding quality and yield in the existing tee processing process.

The above purpose is achieved by the following technical scheme:

The utility model provides an integrated forming device is used in high pressure tee bend processing, integrated forming device is used in high pressure tee bend processing includes the frame and all sets up go up mould, the bed die in the frame, go up the mould with the bed die can lock in order to form and be responsible for the die cavity, be responsible for the die cavity and dispose to place the pipe blank, be provided with on the bed die with be responsible for the branch pipe die cavity that the die cavity is linked together, be responsible for the die cavity with all offer the circulation passageway that supplies the lubrication fluid to flow on the circumference lateral wall of branch pipe die cavity, be provided with the roof pressure portion respectively at the both ends of responsible for the die cavity, roof pressure portion can slide along the axial in order to extrude the pipe blank, at least one be provided with the injection hole on the roof pressure portion, the injection hole is disposed to can to be to the inside fluid medium that fills of main pipe die cavity is provided with the required hydraulic load of pipe blank deformation.

Further, the upper die comprises a first upper die and a second upper die, and a first upper pipe groove is formed in the first upper die; the number of the second upper dies is two, the second upper dies are symmetrically arranged at two ends of the first upper die, and each second upper die is provided with a second upper pipe groove; the lower die comprises a first lower die and a second lower die, and a first lower pipe groove is formed in the first lower die; the number of the second lower dies is two, the second lower dies are symmetrically arranged at two ends of the first lower die, and each second lower die is provided with a second lower pipe groove; the first upper pipe groove, the second upper pipe groove, the first lower pipe groove and the second lower pipe groove jointly surround to form the main pipe die cavity.

Further, a plurality of L-shaped first flow passages are arranged on the circumferential side wall of the first upper pipe groove, the first flow passages are divided into two groups and are symmetrically arranged, the first flow passages are provided with first parts and second parts, the first parts are axially arranged, and the second parts are circumferentially arranged; a plurality of second flow passages are arranged on the circumferential side wall of the second upper pipe groove, are circumferentially distributed and are axially arranged; a plurality of third flow passages are arranged on the circumferential side wall of the first lower pipe groove, are circumferentially distributed and are axially arranged; a plurality of fourth flow channels are arranged on the circumferential side wall of the second lower pipe groove, are circumferentially distributed and are axially arranged; a plurality of fifth flow passages are arranged on the circumferential side wall of the branch pipe die cavity, are circumferentially distributed and are axially arranged; annular common flow passages are arranged at two ends of the second flow passage, the third flow passage and the fourth flow passage; one end of the first flow channel is communicated with the second flow channel, the other end of the first flow channel is communicated with the third flow channel, one part of the third flow channel is communicated with the fourth flow channel, the other part of the third flow channel is communicated with the fourth flow channel, and the other end of the third flow channel is communicated with the fifth flow channel, so that the circulation channel is formed.

Further, the integrated forming device for high-pressure tee joint machining further comprises a driving part, wherein the driving part is configured to drive the upper die to reciprocate along the axis direction of the upper die so as to increase the contact area between the lubricating liquid and the pipe blank.

Further, the integrated forming device for high-pressure tee joint machining further comprises a driving two part, wherein the driving two part is configured to drive the second upper die and the second lower die to reciprocally rotate around the axis of the second upper die and the second lower die so as to increase the contact area between the lubricating liquid and the pipe blank.

Further, a reservoir is provided at the bottom of the manifold cavity, the reservoir being configured to collect the lubricating fluid.

Further, the two second upper dies can synchronously slide along the axial direction of the main pipe die cavity, have corresponding first positions and second positions before and after sliding, the two second lower dies can synchronously slide along the axial direction of the branch pipe die cavity, have corresponding third positions and fourth positions before and after sliding, the second upper dies are positioned at the first positions, the second lower dies are positioned at the third positions, and the upper dies and the lower dies are clamped; the second upper die is located at the second position, the second lower die is located at the fourth position, and the upper die and the lower die are opened.

Further, the integrated forming device for high-pressure tee processing further comprises a driving three part and a driving four part, wherein the driving three part is configured to provide driving force for sliding the second upper die; the driving four portions are configured to be able to provide driving force for sliding the second lower die.

Further, the integrated molding device for high-pressure tee processing further comprises a driving five part, wherein the driving five part is configured to provide driving force for sliding of the top pressing part.

The invention also provides an integrated forming process for processing the high-pressure tee joint, which adopts an integrated forming device for processing the high-pressure tee joint, and comprises the following steps:

s1, placing a tube blank into a main tube die cavity;

S2, introducing lubricating liquid into the main pipe die cavity, the branch pipe die cavity and the pipe blank through the circulation channel;

s3, synchronously centering the two jacking parts to extrude the tube blank, and simultaneously filling a fluid medium into the tube blank through the liquid injection hole;

S4, opening the die.

The beneficial effects of the invention are as follows:

The invention relates to an integrated forming device and a forming process for high-pressure tee joint processing, wherein the integrated forming process for high-pressure tee joint processing comprises the steps of adopting the integrated forming device for high-pressure tee joint processing to process a pipe blank; the integrated forming device for high-pressure tee processing is characterized in that in the process of processing a pipe blank, firstly, the pipe blank is placed in a main pipe die cavity, then lubricating fluid is introduced into the main pipe die cavity, a branch pipe die cavity and the pipe blank through a circulation channel, then fluid media are filled into the main pipe die cavity through a fluid filling hole, simultaneously, the pipe blank is extruded through synchronous centering movement of two pressing parts, and then the branch pipe is extended into the branch pipe die cavity by utilizing the axial compensation characteristic of the pipe blank under the combined action of the extrusion parts and internal hydraulic load, in the process of deformation of the pipe blank, the lubricating fluid can simultaneously reduce friction between the pipe blank and the main pipe die cavity and between the pipe blank, so that the quick forming of the branch pipe is facilitated, the surface quality of the pipe blank is improved, and the yield of the tee pipe is improved.

Furthermore, a plurality of L-shaped first flow passages are formed in the circumferential side wall of the first upper pipe groove, so that the forming rate of the branch pipe is further improved by arranging the first flow passages to be consistent with the deformation direction of the pipe blank in the process of machining the pipe blank.

Drawings

Fig. 1 is a schematic perspective view of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an explosion structure of a part of the integrated forming device for processing a high-pressure tee according to an embodiment of the present invention when a pipe blank is processed;

fig. 3 is a schematic perspective view of a frame of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

Fig. 4 is a schematic perspective view of a first upper die of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of an upper mold frame of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a second upper die of the integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a first lower die of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

fig. 8 is a schematic view of a part of a first lower die of the integrated forming device for high-pressure tee processing shown in fig. 7;

Fig. 9 is a schematic perspective view of a lower die carrier of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a second lower die of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention;

FIG. 12 is a schematic diagram showing a cross-sectional structure of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention when processing a pipeline;

fig. 13 is a schematic diagram showing a cross-sectional structure of an integrated forming device for processing a high-pressure tee according to an embodiment of the present invention when processing a pipeline.

Wherein:

100. a frame; 110. a first drive cylinder; 120. a first driving motor; 121. a first gear;

200. An upper die; 210. a first upper die; 211. a rack; 212. a rod; 213. a first upper pipe groove; 2131. a first flow passage; 214. a first chute; 220. a die carrier is arranged; 221. a third driving cylinder; 222. a first slide bar; 223. a first mounting arc slot; 2231. a second chute; 230. a second upper die; 231. a first arcuate plate; 232. a second slide bar; 233. a second upper pipe groove; 2331. a second flow passage; 2332. a first common flow path;

300. A lower die; 310. a first lower die; 311. a second driving motor; 312. installing a square groove; 313. a slot; 314. a first lower pipe groove; 3141. a third flow passage; 3142. a second common flow path; 3143. a liquid supply channel; 315. a manifold cavity; 316. a liquid injection pipe; 320. a lower die frame; 321. a fourth driving cylinder; 322. a second mounting arc slot; 323. a third chute; 330. a second lower die; 331. a second arcuate plate; 332. ring teeth; 333. a second down tube groove; 3331. a fourth flow passage; 3332. a third common flow path;

400. a pressing part; 410. a liquid injection hole;

500. a tube blank.

Detailed Description

The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1 to 13, the integrated forming device for high-pressure tee processing provided by an embodiment of the present invention is used for processing a pipe blank 500, in this embodiment, the integrated forming device for high-pressure tee processing is configured to include a frame 100, and an upper die 200 and a lower die 300 provided on the frame 100, where the upper die 200 and the lower die 300 can be buckled to form a main pipe die cavity configured to be capable of placing the pipe blank 500, and specifically, the main pipe die cavity is configured to be a cylindrical structure with two ends open; the lower die 300 is provided with a branch pipe die cavity 315 communicated with the main pipe die cavity, specifically, the branch pipe die cavity 315 is provided with a cylindrical structure with two open ends, and the axis of the branch pipe die cavity 315 is perpendicular to the axis of the main pipe die cavity and is communicated with the main pipe die cavity; the circumferential side walls of the main pipe die cavity and the branch pipe die cavity 315 are respectively provided with a circulation channel for the flow of lubricating liquid, and particularly, the lubricating liquid can be emulsion; the two ends of the main pipe die cavity are respectively provided with a top pressing part 400, the top pressing parts 400 can axially slide to extrude the pipe blank 500, at least one top pressing part 400 is provided with a liquid injection hole 410, the liquid injection hole 410 is configured to be capable of filling fluid medium into the main pipe die cavity to provide hydraulic load required by deformation of the pipe blank 500, and specifically, the liquid injection holes 410 are arranged on each top pressing part 400 to reduce time required by filling the main pipe die cavity with the fluid medium and improve the processing efficiency of the pipe blank 500; more specifically, the fluid medium may be configured to employ an emulsion.

It will be appreciated that the fluid medium may also be provided as water or oil.

In the process of processing the pipe blank 500, firstly, the pipe blank 500 is placed in the main pipe die cavity in parallel, then emulsion is introduced into the main pipe die cavity through the circulation channel, and then the emulsion is enabled to lubricate the main pipe die cavity, the branch pipe die cavity 315 and the peripheral wall of the pipe blank 500, so that friction force among the main pipe die cavity, the branch pipe die cavity 315 and the pipe blank 500 is reduced, emulsion is filled into the pipe blank 500 through the injection hole 410, meanwhile, the pipe blank 500 is extruded through synchronous centering motion of the two top pressing parts 400, and then the branch pipe is extended into the branch pipe die cavity 315 by utilizing the axial compensation characteristic of the pipe blank 500 under the combined action of the extrusion parts and internal hydraulic load, when the pipe blank 500 is deformed, the pipe blank 500 has a trend of expanding outwards when the internal hydraulic load, and then can be abutted against the peripheral side wall of the main pipe die cavity, and the emulsion can still lubricate the pipe blank 500 through the circulation channel at the same time on the peripheral side wall of the main pipe die cavity, so that the emulsion can not completely cover the peripheral wall of the pipe blank 500 due to different rough degree of the pipe blank 500, the emulsion can still be prevented, the quality of the pipe blank 500 can be improved, and the quality of the pipe blank 500 can be improved, the friction quality of the pipe blank 500 can be improved, and the pipe blank can be molded rapidly, and the pipe blank 500 can be shaped simultaneously, and the quality of the pipe blank 500 can be better shaped.

After the processing is completed, the two pressing parts 400 move in the directions away from each other synchronously to discharge the emulsion, and then the three-way pipe is taken out from the main pipe die cavity.

In some embodiments, the upper mold 200 is configured to include a first upper mold 210 and a second upper mold 230, a first upper pipe groove 213 is provided on the first upper mold 210, specifically, as shown in fig. 4, the first upper mold 210 is configured to have a T-shaped plate structure, and has a first horizontal section and a first vertical section that are vertically and fixedly connected, the first upper pipe groove 213 is configured to have a semicircular cross-sectional shape, is formed on and penetrates through left and right end surfaces of the first vertical section, two first sliding grooves 214 that are symmetrically provided are provided on top of the first horizontal section, the first sliding grooves 214 are provided along a length direction parallel to the first horizontal section, and two insert rods 212 are symmetrically provided at bottom of the first vertical section; more specifically, as shown in fig. 3, four first driving cylinders 110 are disposed on the frame 100, where the four first driving cylinders 110 are disposed in groups of two pairs, and the two groups of first driving cylinders 110 and the two first sliding grooves 214 are disposed correspondingly, and an output shaft of the first driving cylinder 110 is inserted into the first sliding groove 214 when in use, so as to drive the first upper die 210 to move along the vertical direction, thereby facilitating die assembly and die opening; the number of the second upper dies 230 is two, and the second upper dies 230 are symmetrically disposed at two ends of the first upper die 210, each second upper die 230 is provided with a second upper tube slot 233, specifically, as shown in fig. 6, the second upper die 230 is configured as a semi-cylindrical structure, the cross-section of the second upper tube slot 233 is configured as a semi-circle, and the second upper tube slot 233 is coaxially disposed on two end surfaces of the second upper die 230 and penetrates through the two end surfaces of the second upper die 230, and the radius of the inner peripheral wall of the second upper tube slot 233 is equal to the radius of the inner peripheral wall of the first upper tube slot 213.

It is understood that the first driving cylinder 110 may be provided as any one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

The lower mold 300 is configured to include a first lower mold 310 and a second lower mold 330, a first lower pipe groove 314 is provided on the first lower mold 310, specifically, as shown in fig. 7, the first lower mold 310 is configured to have an inverted T-shaped plate structure, and has a second horizontal section and a second vertical section that are vertically and fixedly connected, a cross section of the second upper pipe groove 233 is configured to be semicircular, and is formed on a left end surface and a right end surface of the second vertical section, and is configured to penetrate through the left end surface and the right end surface of the second vertical section, a radius of an inner peripheral wall of the second upper pipe groove 233 is equal to a radius of an inner peripheral wall of the first upper pipe groove 213, and two slots 313 are symmetrically provided at a top of the second vertical section, and the slots 313 can be inserted with the insert rods 212, so that alignment accuracy when the first lower mold 310 and the first upper mold 210 are fastened can be improved; the number of the second lower dies 330 is two, and the second lower dies 330 are symmetrically arranged at two ends of the first lower die 310, each second lower die 330 is provided with a second lower tube slot 333, specifically, as shown in fig. 10, the second lower dies 330 are arranged in a semi-cylindrical structure, the cross section of each second lower tube slot 333 is arranged in a semi-circular shape, and the second lower dies 330 are coaxially arranged on two end surfaces of the second lower dies 330 and penetrate through the two end surfaces of the second lower dies 330, the radius of the inner peripheral wall of each second lower tube slot 333 is equal to the radius of the inner peripheral wall of each first lower tube slot 314, and as shown in fig. 11, the first upper tube slot 213, the second upper tube slot 233, the first lower tube slot 314 and the second lower tube slot 333 jointly encircle to form a main tube die cavity.

In this embodiment, as shown in fig. 4 and 11, a plurality of L-shaped first flow passages 2131 are provided on the circumferential side wall of the first upper pipe groove 213, the shape of the first flow passages 2131 is consistent with the deformation direction of the pipe blank 500, the forming rate of the branch pipes is further improved, the plurality of first flow passages 2131 are divided into two groups and symmetrically arranged, the first flow passages 2131 have a first portion and a second portion, the first portion is arranged in the axial direction, and the second portion is arranged in the circumferential direction; as shown in fig. 6 and 11, a plurality of second flow passages 2331 are provided on the circumferential side wall of the second upper pipe groove 233, and the plurality of second flow passages 2331 are circumferentially arranged and are all axially arranged; as shown in fig. 7 and 11, a plurality of third flow passages 3141 are provided on the circumferential side wall of the first downcomer groove 314, and the plurality of third flow passages 3141 are circumferentially arranged and are each axially arranged; as shown in fig. 10 and 11, a plurality of fourth flow passages 3331 are provided on the circumferential side wall of the second lower tube slot 333, and the plurality of fourth flow passages 3331 are circumferentially arranged and all axially arranged; as shown in fig. 11, a plurality of fifth runners are provided on the circumferential side wall of the manifold cavity 315, and the fifth runners are circumferentially arranged and axially arranged.

The second flow channel 2331, the third flow channel 3141 and the fourth flow channel 3331 are provided with annular common flow channels at both ends, specifically, as shown in fig. 6,8, 10 and 11, two first common flow channels 2332 are circumferentially arranged on the circumferential side wall of the second upper pipe groove 233, wherein one end of one first common flow channel 2332 is communicated with one end of all the second flow channels 2331, and the other end of the other first common flow channel 2332 is communicated with the other ends of all the second flow channels 2331; two second common flow passages 3142 are provided on the circumferential side wall of the first lower pipe groove 314 in the circumferential direction, wherein one end of the second common flow passage 3142 is communicated with one end of all the third flow passages 3141, and the other end of the other second common flow passage 3142 is communicated with the other ends of all the third flow passages 3141; two third common flow passages 3332 are provided on the circumferential side wall of the second lower pipe groove 333 in the circumferential direction, one end of one third common flow passage 3332 is communicated with one end of all fourth flow passages 3331, the other end of the other third common flow passage 3332 is communicated with the other end of all fourth flow passages 3331, and the second common flow passage 3142 is communicated with the third common flow passage 3332.

As shown in fig. 11, one end of the first flow passage 2131 is communicated with the second flow passage 2332 through the first common flow passage 2332, the other end is communicated with the third flow passage 3141, wherein, two ends of a part of the third flow passage 3141 are communicated with the fourth flow passage 3331 through the second common flow passage 3142 and the third common flow passage 3332, one end of the other part of the third flow passage 3141 is communicated with the fourth flow passage 3331 through the second common flow passage 3142 and the third common flow passage 3332, the other end is communicated with the fifth flow passage to form a flow passage, specifically, as shown in fig. 7 and 8, two liquid injection pipes 316 are arranged on the outer peripheral wall of the first lower pipe groove 314, two liquid supply pipes 316 are respectively positioned on two sides of the second vertical end in the left-right direction, and a liquid supply flow passage 3143 is correspondingly arranged on the inner peripheral wall of the first lower pipe groove 314, one end of the liquid supply passage 3143 is communicated with the liquid injection pipe 316, and the other end is arranged to be communicated with the second common flow passage 3142, and the third flow passage 3141 is communicated; in use, the lubrication fluid enters the interior of the flow channel through the fill tube 316 via the fluid supply channel 3143.

In the process of processing the pipe blank 500, when in mold clamping, firstly, the pipe blank 500 is coaxially placed on a first lower pipe groove 314 and a second lower pipe groove 333, then, a first driving motor 120 drives a first upper mold 210 to be buckled with a first lower mold 310, a second upper mold 230 to be buckled with a second lower mold 330 respectively, so that the first upper pipe groove 213, the second upper pipe groove 233, the first lower pipe groove 314 and the second lower pipe groove 333 jointly encircle to form a main pipe mold cavity, then, emulsion is introduced between the main pipe mold cavity, the pipe separation mold cavity and the pipe blank 500 through two liquid injection pipes 316, and the emulsion is introduced into a second common flow channel 3142 through a liquid supply flow channel 3143, and then enters a third flow channel 3141 and a third common flow channel 3332 respectively from the second common flow channel 3142; emulsion entering the third flow channel 3141 enters the fifth flow channel on the one hand, and enters the first flow channel 2131 on the other hand, then enters the second flow channel 2331 through the first common flow channel 2332, and then enters the fourth flow channel 3331 from the second flow channel 2331; the emulsion entering the third common flow path 3332 enters the fourth flow path 3331 to lubricate the gaps among the main pipe die cavity, the branch pipe die cavity 315 and the pipe blank 500.

When the mold is opened, the first driving motor 120 drives the first upper mold 210 to move to be separated from the first lower mold 310, and the second upper mold 230 moves to be separated from the second lower mold 330, so that the finished pipe after processing can be taken out.

In a further embodiment, when the inside of the tube blank 500 is subjected to a hydraulic load, the tube blank 500 has a tendency to expand outwards, and can be abutted against the circumferential side wall of the main tube die cavity, and since the emulsion can only flow in the flow channel, the emulsion can only lubricate the outer wall surface of the tube blank 500 corresponding to the first flow channel 2131, but the outer wall surface of the tube blank 500 not corresponding to the first flow channel 2131 cannot be lubricated, which is easy to cause uneven traction deformation of the outer surface layer and the inner surface layer, thereby being unfavorable for the formation of the extrusion deformation area; to solve this problem, the integrated forming device for internal high-pressure tee processing is configured to further include a driving part configured to drive the upper die 200 to reciprocate along the own axis direction to increase the contact area between the lubricating fluid and the tube blank 500, specifically, the driving part is configured to include a first driving motor 120, specifically, as shown in fig. 3, the first driving motor 120 is disposed on the frame 100, and a first gear 121 is fixedly sleeved on a motor shaft of the first driving motor 120, as shown in fig. 4, and racks 211 engaged with the first gear 121 are fixedly and parallel disposed on the top of a first horizontal section of the first upper die 210; when in use, the first driving motor 120 drives the rack 211 to reciprocate through the first gear 121, and the rack 211 drives the upper die 200 to reciprocate along the axis direction of the rack through the first upper die 210, so that the emulsion can lubricate all the outer wall surfaces of the pipe blank 500, and the lubrication effect is ensured.

It will be appreciated that the second driving cylinder may be provided to drive the first driving motor 120 and the first upper die 210 to move synchronously, so that the rack 211 and the first gear 121 are always engaged.

It will be appreciated that the second drive cylinder may be provided as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

In other embodiments, when the inside of the tube blank 500 is subjected to a hydraulic load, the tube blank 500 has a tendency to expand outwards, and can be abutted against the circumferential side wall of the main tube die cavity, and since the emulsion can only flow in the flow channel, the emulsion can only lubricate the outer wall surface of the tube blank 500 corresponding to the second flow channel 2331 and the fourth flow channel 3331, but the outer wall surface of the tube blank 500 not corresponding to the second flow channel 2331 and the fourth flow channel 3331 cannot be lubricated, which is easy to cause uneven traction deformation of the outer surface layer and the inner surface layer thereof, thereby being unfavorable for the formation of the extrusion deformation area; to solve this problem, the integrated forming device for high-pressure tee processing is configured to further include a driving two part configured to drive the second upper die 230 and the second lower die 330 to reciprocally rotate around the own axis so as to increase the contact area between the lubricating fluid and the tube blank 500, specifically, the driving two part is configured to further include an upper die frame 220, a lower die frame 320 and a second driving motor 311, as shown in fig. 5 and 11, the number of the upper die frames 220 is two, and symmetrically installed at the bottom of the first horizontal section of the first upper die 210, the upper die frame 220 is configured to have a straight quadrangular prism structure, a first installation arc groove 223 is penetratingly provided in the left and right end surfaces of the upper die frame 220, coaxial second sliding grooves 2231 are provided on both end surfaces of the first installation arc groove 223, as shown in fig. 7, first arc plates 231 are coaxially provided on the outer peripheral wall of the second upper die frame 230, and coaxial second sliding strips 232 are provided on both end surfaces of the first arc plates 231; in use, the first arc plate 231 is coaxially inserted into the first installation arc groove 223, and the second slide bar 232 is coaxially inserted into the second slide groove 2231 and can slide along the second slide groove 2231, so that the second upper die 230 can rotate along its own axis.

As shown in fig. 9 and 11, the number of the lower mold frames 320 is two, and the lower mold frames 320 are symmetrically installed at the top of the second horizontal section of the second upper mold 230, the lower mold frames 320 are arranged in a straight quadrangular prism-shaped structure, a second installation arc groove 322 is penetratingly arranged in the direction of the left and right end faces of the lower mold frames 320, the radius of the second installation arc groove 322 is equal to the radius of the outer peripheral wall of the second lower mold 330, a third sliding groove 323 is coaxially arranged on the circumferential side wall of the second installation arc groove 322, as shown in fig. 10, a coaxial second arc plate 331 is arranged on the outer peripheral wall of the second lower mold 330, and the second arc plate 331 is inserted in the third sliding groove 323 and can slide along the third sliding groove 323 when in use, so that the second lower mold 330 can rotate along the axis of the second lower mold 330; as shown in fig. 7, the number of the second driving motors 311 is two, and the second driving motors 311 are symmetrically arranged on the second horizontal section, a second gear is fixedly sleeved on a motor shaft of each second driving motor 311, and as shown in fig. 10, partial ring teeth 332 meshed with the second gear are arranged on the peripheral wall of each second lower die 330; when in use, the second driving motor 311 drives the ring gear 332 to rotate reciprocally through the second gear, and the ring gear 332 drives the second upper die 230 to rotate reciprocally around the axis of the second lower die 330, so that the emulsion can lubricate all the outer wall surfaces of the pipe blank 500, and the lubrication effect is ensured.

In other embodiments, a reservoir is provided at the bottom of the manifold cavity 315, the reservoir configured to collect lubrication fluid to increase the circulation rate of the lubrication fluid and reduce the cost of use.

In other embodiments, the two second upper dies 230 can slide synchronously along the axial direction of the main pipe die cavity, and have corresponding first and second positions before and after the sliding, the two second lower dies 330 can slide synchronously along the axial direction of the branch pipe die cavity 315, and have corresponding third and fourth positions before and after the sliding, the second upper dies 230 are in the first position, the second lower dies 330 are in the third position, and the upper dies 200 and the lower dies 300 are clamped; the second upper mold 230 is in the second position, the second lower mold 330 is in the fourth position, and the upper mold 200 and the lower mold 300 are opened.

In this embodiment, the integrated forming device for high-pressure three-way processing is further configured to include three driving parts and four driving parts, the three driving parts are configured to provide a driving force for sliding the second upper die 230, specifically, the three driving parts are configured to include three driving cylinders 221, as shown in fig. 5, the number of the third driving cylinders 221 is four, two groups of the third driving cylinders 221 and two upper die frames 220 are correspondingly arranged, first sliding strips 222 are convexly arranged on the top, front end surface and rear end surface of each upper die frame 220, as shown in fig. 11, square mounting grooves are formed at the bottom of the first horizontal section of the first upper die 210, the four third driving cylinders 221 are all installed in the mounting grooves, and the first sliding strips 222 are inserted in the mounting grooves and can slide along the length direction of the mounting grooves; the driving four parts are configured to provide driving force for sliding the second lower mold 330, specifically, the driving three parts are configured to include four driving cylinders 321, as shown in fig. 9, two driving cylinders 321 are provided and correspond to the lower mold frames 320, as shown in fig. 7, two installation square grooves 312 are symmetrically provided at the top of the second horizontal section of the first lower mold 310, two fourth driving cylinders 321 and two installation square grooves 312 are correspondingly provided, and an output shaft of the fourth driving cylinder 321 is provided at the bottom of the second lower mold 330 to drive the second lower mold 330 to slide along the axial direction of the branch pipe mold cavity 315.

It is understood that the third driving cylinder 221 may be provided as any one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

It is understood that the fourth driving cylinder 321 may be provided as any one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

In other embodiments, the integrated forming device for high-pressure three-way processing is further configured to include a driving five portion, where the driving five portion is configured to provide a driving force for sliding the top pressing portion 400, specifically, the driving five portion is configured to include a fifth driving cylinder, two fifth driving cylinders are provided, and are symmetrically disposed on two sides of the first lower die 310, and an output shaft of the fifth driving cylinder is disposed along an axial direction of the main pipe die cavity and is disposed on the top pressing portion 400 to drive the top pressing portion 400 to insert into or extract from the main pipe die cavity.

It will be appreciated that the fifth drive cylinder may be provided as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

The embodiment of the invention also provides an integrated forming process for processing the high-pressure tee joint, which adopts an integrated forming device for processing the high-pressure tee joint and comprises the following steps of:

s1, placing a tube blank into a main tube die cavity;

Specifically, the tube blank 500 is placed in the first lower tube slot 314 coaxially and parallelly, the first driving cylinder 110 drives the first upper die 210 and the first lower die 310 to be buckled, the third driving cylinder 221 drives the two second upper dies 230 to move synchronously along the direction approaching to each other so as to move from the second position to the first position, and the fourth driving cylinder 321 simultaneously drives the two second lower dies 330 to move synchronously along the axial direction of the branch tube die cavity 315 so as to move from the fourth position to the third position, so that the first upper tube slot 213, the second upper tube slot 233, the first lower tube slot 314 and the second lower tube slot 333 jointly encircle to form a main tube die cavity, and die assembly is completed.

S2, introducing lubricating liquid into the main pipe die cavity, the branch pipe die cavity and the pipe blank through the circulation channel;

specifically, the emulsion is injected into the circulation channel through the injection pipe 316, so that the emulsion can flow through the space between the main pipe die cavity, the branch pipe die cavity 315 and the pipe blank 500, and the lubrication effect is ensured.

S3, synchronously centering the two jacking parts to extrude the tube blank, and simultaneously filling a fluid medium into the tube blank through the liquid injection hole;

Specifically, the fifth driving cylinder drives the two pressing parts 400 to move synchronously in directions approaching each other, and simultaneously, emulsion is filled into the pipe blank 500 through the injection hole 410, and the pipe is extended into the pipe branch die cavity 315 by utilizing the axial compensation characteristic of the pipe blank 500 under the combined action of the extrusion part and the internal hydraulic load.

S4, opening the die.

Specifically, the third driving cylinder 221 drives the two second upper dies 230 to move synchronously along the direction away from each other to move from the first position to the second position, and the fourth driving cylinder 321 drives the two second lower dies 330 to move synchronously along the axial direction of the branch pipe die cavity 315 to move from the third position to the fourth position, and then the first driving cylinder 110 drives the first upper die 210 and the first lower die 310 to open, so that the finished pipe after processing can be taken out.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims (8)

1. The integrated forming device for the high-pressure tee joint machining is characterized by comprising a frame, an upper die and a lower die which are all arranged on the frame, wherein the upper die and the lower die can be buckled to form a main pipe die cavity, the main pipe die cavity is configured to be used for placing a pipe blank, branch pipe die cavities communicated with the main pipe die cavity are arranged on the lower die, circulation channels for lubricating liquid to flow are formed in the circumferential side walls of the main pipe die cavity and the branch pipe die cavity, pressing parts are respectively arranged at two ends of the main pipe die cavity, the pressing parts can axially slide to extrude the pipe blank, and at least one pressing part is provided with a liquid injection hole which is configured to be used for filling fluid media into the main pipe die cavity so as to provide hydraulic load required by deformation of the pipe blank;

The upper die comprises a first upper die and a second upper die, and a first upper pipe groove is formed in the first upper die; the number of the second upper dies is two, the second upper dies are symmetrically arranged at two ends of the first upper die, and each second upper die is provided with a second upper pipe groove; the lower die comprises a first lower die and a second lower die, and a first lower pipe groove is formed in the first lower die; the number of the second lower dies is two, the second lower dies are symmetrically arranged at two ends of the first lower die, and each second lower die is provided with a second lower pipe groove; the first upper pipe groove, the second upper pipe groove, the first lower pipe groove and the second lower pipe groove jointly surround to form the main pipe die cavity;

The first upper pipe groove is characterized in that a plurality of L-shaped first flow passages are arranged on the circumferential side wall of the first upper pipe groove, the first flow passages are divided into two groups and are symmetrically arranged, the first flow passages are provided with a first part and a second part, the first part is axially arranged, and the second part is circumferentially arranged; a plurality of second flow passages are arranged on the circumferential side wall of the second upper pipe groove, are circumferentially distributed and are axially arranged; a plurality of third flow passages are arranged on the circumferential side wall of the first lower pipe groove, are circumferentially distributed and are axially arranged; a plurality of fourth flow channels are arranged on the circumferential side wall of the second lower pipe groove, are circumferentially distributed and are axially arranged; a plurality of fifth flow passages are arranged on the circumferential side wall of the branch pipe die cavity, are circumferentially distributed and are axially arranged; annular common flow passages are arranged at two ends of the second flow passage, the third flow passage and the fourth flow passage; one end of the first flow channel is communicated with the second flow channel, the other end of the first flow channel is communicated with the third flow channel, one part of the third flow channel is communicated with the fourth flow channel, the other part of the third flow channel is communicated with the fourth flow channel, and the other end of the third flow channel is communicated with the fifth flow channel, so that the circulation channel is formed.

2. The integrated forming device for high-pressure three-way processing according to claim 1, further comprising a driving portion configured to be capable of driving the upper die to reciprocate in a direction of an axis thereof so as to increase a contact area between the lubricating fluid and the tube blank.

3. The integrated forming device for high-pressure three-way processing according to claim 1, further comprising a driving two part configured to drive the second upper die and the second lower die to reciprocally rotate around their own axes so as to increase a contact area between the lubricating fluid and the pipe blank.

4. The integrated forming device for high-pressure tee processing of claim 1, wherein a reservoir is provided at a bottom of the manifold cavity, the reservoir configured to collect the lubricating fluid.

5. The integrated molding device for high-pressure three-way processing according to claim 1, wherein two second upper dies can slide synchronously along the axial direction of the main pipe die cavity, have corresponding first and second positions before and after sliding, and two second lower dies can slide synchronously along the axial direction of the branch pipe die cavity, have corresponding third and fourth positions before and after sliding, and the second upper dies are in the first position, the second lower dies are in the third position, and the upper dies and the lower dies are clamped; the second upper die is located at the second position, the second lower die is located at the fourth position, and the upper die and the lower die are opened.

6. The integrated molding device for high-pressure three-way processing according to claim 5, further comprising a driving three portion and a driving four portion, the driving three portion being configured to be capable of providing a driving force for sliding the second upper die; the driving four portions are configured to be able to provide driving force for sliding the second lower die.

7. The integrated forming device for high-pressure three-way processing according to claim 1, further comprising a driving five portion configured to be able to provide a driving force for sliding of the pressing portion.

8. An integrated molding process for processing a high-pressure tee, characterized in that an integrated molding device for processing a high-pressure tee according to any one of claims 1 to 7 is adopted, and the integrated molding process for processing a high-pressure tee comprises the following steps:

s1, placing a tube blank into a main tube die cavity;

S2, introducing lubricating liquid into the main pipe die cavity, the branch pipe die cavity and the pipe blank through the circulation channel;

s3, synchronously centering the two jacking parts to extrude the tube blank, and simultaneously filling a fluid medium into the tube blank through the liquid injection hole;

S4, opening the die.