CN113182425B - A three-way pipe processing equipment for automatic lubricating oil - Google Patents

Abstract

The invention discloses a three-way pipe processing equipment for automatic lubricating oil. The first mold and the second mold of the cavity, the second mold is provided with a bulging channel that communicates with the cylindrical cavity, the extrusion head is provided above the second mold, the first mold is provided with a positioning block, and the fixed mold base A bulging ball channel with an inlet connected to a bulging channel is provided, a guide head is connected to the telescopic end of the second hydraulic cylinder, a lubricating oil extrusion cavity is arranged at the bottom of the guide head, and the upper end of the extrusion head is slidably arranged in the lubricating oil extrusion cavity, The lubricating oil extrusion cavity is provided with an oil inlet pipe and an oil outlet pipe, both of which have a one-way valve, and the outlet of the oil outlet pipe is aligned with the junction of the bulging channel and the cylindrical cavity. This three-way pipe processing equipment can automatically apply lubricating oil at the beginning of bulging to prevent the lubricating oil from being lost during bulging.

Description

A three-way pipe processing equipment for automatic lubricating oil

technical field

The invention belongs to the technical field of pipeline processing equipment, in particular to a three-way pipe processing equipment for automatically applying lubricating oil.

Background technique

The tee pipe is a commonly used joint in liquid and gas pipe networks. The existing tee pipe processing equipment is generally processed by the bulging method, which generally includes a tee pipe mold and pressurization equipment. The cavity of the tee pipe mold includes A transverse channel and a channel extending laterally connecting the transverse channel, the cylindrical tube is put into the transverse channel of the tee-pipe die during processing, the liquid medium is filled in the cylindrical tube and extruded, and the extruded During the process, the cylindrical tube is deformed and shortened due to the pressure at both ends, and the liquid medium is pressurized to push the cylindrical tube laterally to deform into the laterally extending channel, so that the cylindrical tube is formed in the same shape as the tee mold. The shape of the tee pipe is matched with the cavity, and then the end face of the laterally extending channel can be cut off to form the blank of the tee pipe, and then the tee pipe can be processed by subsequent processing. In this processing method, water is generally used as the pressure medium, which requires a large amount of water during production, which is not conducive to energy conservation and emission reduction; and processing requires high sealing performance of equipment, resulting in high production costs of equipment, and the need for Regular maintenance is required to ensure the tightness, and the cylindrical pipe is filled with water during the processing, and the pipe cannot be lubricated during the extrusion process, which will easily cause cracks during the pressure deformation process of the pipe, resulting in a lower product qualification rate.

In order to solve the above-mentioned technical problems, the applicant has developed a new type of three-way pipe processing equipment. This three-way pipe processing equipment includes an operation platform, and a movable mold base and a fixed mold base are arranged on the operation platform. The seat and the fixed mold seat are respectively provided with a first mold and a second mold that can be closed to form a cylindrical cavity, the movable mold seat is driven by a first hydraulic cylinder, and the second mold is provided with a connection to the A bulging channel of a cylindrical cavity, an extrusion head driven by a second hydraulic cylinder is arranged above the second die, a positioning block is arranged in the first die, and the extrusion head faces the positioning block side Extrusion can press the bulging ball to the bulging channel, a bulging ball channel is arranged in the fixed die base, and the bulging ball channel inlet is communicated with the bulging channel. When processing this kind of tee pipe processing equipment, first punch an oval hole on the cylindrical pipe, apply lubricating oil on the cylindrical pipe around the oval hole, and align the oval hole of the cylindrical pipe The bulging channel is put into the cavity of the first mold, the first hydraulic cylinder extends to close the first mold and the second mold, and then the second hydraulic cylinder extends the extrusion head to squeeze the bulging ball, so that the bulging ball is formed. The ball is extruded from the bulging channel and the cylindrical tube is formed into a blank of the tee tube, after which the first hydraulic cylinder retracts to open the die, and the bulging ball is rolled out from the bulging ball channel. This kind of tee pipe processing device needs to be pre-applied with lubricating oil during processing, and the lubricating oil applied in advance has often lost a large part during bulging, which not only reduces the processing efficiency, the workload of workers is large, but also causes the lubricating oil to be smeared. The effect is reduced, and cracks are still prone to occur.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the present invention provides a three-way pipe processing equipment for automatically applying lubricating oil, and the three-way pipe processing equipment does not need to apply lubricating oil when the cylindrical pipe is loaded into the cavity of the first mold , Improve the processing efficiency, reduce the workload of workers, and automatically apply lubricating oil at the beginning of bulging extrusion to prevent the loss of lubricating oil during bulging and reduce the possibility of cracks.

In order to solve the above-mentioned technical problems, the present invention is solved by the following technical solutions: a three-way pipe processing equipment for automatic lubricating oil, comprising an operation platform, a movable die base and a fixed die base are arranged on the operation platform, and the The movable mold base and the fixed mold base are respectively provided with a first mold and a second mold that can be closed to form a cylindrical cavity, the movable mold base is driven by a first hydraulic cylinder, and a communication connection is provided on the second mold. The bulging channel of the cylindrical cavity, an extrusion head driven by a second hydraulic cylinder is arranged above the second die, a positioning block is arranged in the first die, and the extrusion head is positioned toward the The block side extrusion can press the bulging ball to the bulging channel, the bulging ball channel is set in the fixed die base, the bulging ball channel inlet is connected to the bulging channel, and the second hydraulic cylinder The telescopic end is connected with a guide head, the bottom of the guide head is provided with a lubricating oil extrusion cavity, the upper end of the extrusion head is slidably arranged in the lubricating oil extrusion cavity, and the lubricating oil extrusion cavity is provided with an inlet Oil pipeline and oil outlet pipeline, the oil inlet pipeline is connected to the oil tank, the outlet of the oil outlet pipeline is aligned with the junction of the bulging channel and the cylindrical cavity, the oil inlet pipeline and the oil outlet A check valve is arranged on the pipeline, and a control device is connected to the first hydraulic cylinder and the second hydraulic cylinder. During the processing of this three-way pipeline processing equipment, when the second hydraulic cylinder is extended for bulging processing, the extrusion head will move into the lubricating oil extrusion cavity, and the lubricating oil in the lubricating oil extrusion cavity will be discharged from the oil. The pipe is extruded to the outer wall of the cylindrical pipe. When the second hydraulic cylinder retracts and drives the extrusion head to move upward, the extrusion head moves to the outside of the lubricating oil extrusion cavity due to its own gravity, and automatically passes through the oil inlet pipe from the lubricating oil extrusion chamber. The lubricating oil is sucked into the lubricating oil extrusion cavity in the oil tank to realize the automatic application of the lubricating oil. The cylindrical tube does not need to be manually lubricated before being loaded into the cavity of the first mold, which improves the processing efficiency and reduces the workload of workers. Lubricating oil will be automatically applied at the beginning of forming extrusion to prevent the lubricating oil from being lost during bulging and reduce the possibility of cracks.

In the above technical solution, preferably, the extrusion head is provided with a guide slope, and the positioning block is provided with a horizontal guide groove.

In the above technical solution, preferably, the positioning block is provided with a notch matching the guiding slope.

In the above technical solution, preferably, the fixed die base is provided with a punch driven by a third hydraulic cylinder that extends and retracts in the axial direction of the bulging channel, and the positioning block is driven up and down by the second linear drive device, so The second linear driving device is arranged at the bottom of the movable die base, and a waste discharge channel is arranged in the positioning block. When the positioning block is at the top position, the inlet of the upper end of the waste discharge channel is aligned with the punch, When the positioning block is at the bottom position, the punch aligns with the center of the bulging ball located above the positioning block, and the third hydraulic cylinder and the second linear driving device are connected with the control device. Since the cylindrical tube is punched first, and then placed in the cavity of the first mold, the punched hole needs to be aligned with the bulging channel, and the accuracy is prone to occur due to manual placement of the cylindrical tube. Deviation, resulting in the final bulging formed tee blank processing accuracy is not high, the opening formed by bulging crooked. With this structure, the cylindrical tube does not need to be punched before being placed in the cavity of the first mold. After the first mold and the second mold are closed, the second linear drive device drives upward, and the inlet at the upper end of the waste discharge channel is opposite to According to the punch, the third hydraulic cylinder pushes the punch to punch a hole on the cylindrical pipe, and the waste generated by the punching falls from the waste discharge channel; not only the processing efficiency is improved, but also the cylindrical pipe is placed in the first There is no need for alignment in the cavity of the mold, and the punched hole can be accurately aligned with the bulging channel to improve the machining accuracy.

In the above technical solution, preferably, the movable mold base is provided with an air channel connected to the air pump, when the positioning block is at the top position, the outlet at the lower end of the exhaust channel is aligned with the air channel, and the expansion A movable door for sealing the outlet of the bulging ball channel is hinged at the outlet of the spherical ball channel, a lever is radially arranged on the rotating shaft of the movable door, and the fixed mold seat on one side of the movable door is provided with a matching rod. The control device is connected to the air pump and the second light touch switch. Due to the fact that the punch is broken in the punching hole, the punching hole may not pass through, and the punching head cannot be directly observed outside the fixed die base. Extruding the bulging ball directly for bulging processing will make the second hydraulic Excessive load on the cylinder and extrusion head may cause equipment damage. Therefore, it is necessary to detect whether the punching hole is punched through. During punching, after the third hydraulic cylinder pushes the punching head to expand and contract once, the control device controls the air pump to blow air into the air passage. At this time, the lower end of the exhaust channel is aligned with the air channel. If the punching is successful, most of the gas will flow through the exhaust channel, the punched hole and the bulging ball channel to push the movable door. The tact switch will be pressed by the lever. If the second tact switch feeds back an electrical signal to the control device, it means that the punching is successful, and the next step is continued. If the punching is unsuccessful, the second tact switch will not feed back an electrical signal to the control device. , the control device does not proceed to the next step, and prompts the worker to overhaul. The adoption of this structure can automatically detect whether the punching is successful or not, and prevent the second hydraulic cylinder and the extrusion head from being damaged due to excessive load. And when the bulging ball rolls out of the bulging ball channel, it will also push the movable door. When the movable door is pushed open, the second tact switch will be pressed by the lever. If the second tact switch feeds back an electrical signal to the control device, it means The bulging ball rolls out normally. If the second tact switch does not feed back an electrical signal to the control device, it means that the bulging ball is stuck in the bulging ball channel and needs to be repaired.

Compared with the prior art, the present invention has the following beneficial effects: during the processing of the three-way pipeline processing equipment, when the second hydraulic cylinder is extended for bulging processing, the extrusion head will move into the lubricating oil extrusion cavity , the lubricating oil in the lubricating oil extrusion cavity is extruded from the oil outlet pipe to the outer wall of the cylindrical pipe. In the process of the second hydraulic cylinder retracting and driving the extrusion head to move up, the extrusion head will lubricate the lubricating head due to its own gravity. The oil squeezes out of the cavity, and automatically sucks the lubricating oil into the lubricating oil squeeze cavity from the oil tank through the oil inlet pipe, so as to realize the automatic application of the lubricating oil. Lubricating oil can improve processing efficiency and reduce the workload of workers. Lubricating oil will be automatically applied at the beginning of bulging extrusion to prevent the loss of lubricating oil during bulging and reduce the possibility of cracks.

Description of drawings

FIG. 1 is a schematic structural diagram of a front view of an embodiment of the present invention.

FIG. 2 is a left-view structural schematic diagram of an embodiment of the present invention.

FIG. 3 is a schematic cross-sectional structural diagram of an embodiment of the present invention when a cylindrical tube and a bulging ball are loaded.

FIG. 4 is a schematic cross-sectional structural diagram of an embodiment of the present invention when a hole is punched after mold clamping.

FIG. 5 is a schematic cross-sectional structural diagram of the extrusion head when the extrusion head is compressed and bulged according to an embodiment of the present invention.

6 is a schematic cross-sectional structural diagram of an embodiment of the present invention when the mold is opened.

FIG. 7 is a schematic cross-sectional structural diagram of a bulging ball lifting pipe according to an embodiment of the present invention.

FIG. 8 is a schematic structural diagram when a cylindrical tube is loaded into the first mold according to the embodiment of the present invention.

FIG. 9 is a schematic view of the structure when the movable clamping block clamps and aligns the cylindrical tube according to the embodiment of the present invention.

10 is a schematic cross-sectional structural diagram of the upper movable clamping block in the embodiment of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments: Referring to Fig. 1 to Fig. 10 , a three-way pipe processing equipment for automatic lubricating oil includes an operation platform 100, and a movable die base 1 is provided on the operation platform 100. and the fixed mold base 2, the movable mold base 1 is provided with a first mold 3, the fixed mold base 2 is provided with a second mold 4, and the first mold 3 and the second mold 4 are oppositely provided with a semicircular cavity, The movable mold base 1 can drive the first mold 3 and the second mold 4 to close to form a cylindrical cavity. The movable mold base 1 is driven by the first hydraulic cylinder 5. The bottom of the movable mold base 1 is provided with a slide rail, and the second mold 4 A bulging channel 42 that communicates with the cylindrical cavity is provided, and an extrusion head 7 driven by the second hydraulic cylinder 6 is arranged above the second mold 4. The extrusion head 7 is aligned with the cavity of the second mold 4, and the first The mold 3 is provided with a positioning block 8, the extrusion head 7 can press the bulging ball 9 to the bulging channel 42 by pressing the side of the positioning block 8, and the fixed mold base 2 is provided with a bulging ball channel 21, which is a bulging ball channel. The inlet of 21 is connected to the inflation-shaped channel 42. Below the outlet of the inflation-shaped ball channel 21 is the inlet of the inflation-shaped ball drop pipe 101. A bulging ball lifting plate 103 is slidably arranged in the lifting pipe 102 , and the bulging ball lifting plate 103 is driven up and down by a first linear driving device 104 that can reciprocate and slide along the radial direction of the bulging ball lifting pipe 102 . In this embodiment, , the first linear drive device 104 is an air cylinder. In other embodiments, it can of course also be other linear drive devices such as electric cylinders or hydraulic cylinders. The top of the bulging ball lifting pipe 102 is provided with an outlet obliquely downward to align with the first mold 3 The ball outlet pipe 105 at the top, the ball outlet pipe 105 is provided with an electromagnet 11 that attracts the bulging ball 9 into the ball outlet pipe 105, the first hydraulic cylinder 5, the second hydraulic cylinder 6, the first linear drive device 104 and the electromagnet 11 is connected to a control device (not shown in the picture). When processing this kind of three-way pipe processing equipment, firstly, an oval hole is punched in the cylindrical pipe 200, lubricating oil is applied to the cylindrical pipe 200 around the oval hole, and the oval shape of the cylindrical pipe 200 is smeared. The hole is aligned with the bulging channel 42 and put into the cavity of the first mold 3, the switch is activated, the control device controls the first linear drive device 104 to lift the bulging ball 9, and the bulging ball 9 automatically falls from the ball outlet pipe 105 to the cavity. In the cylindrical tube 200, the first linear drive device 104 is reset, and then the first hydraulic cylinder 5 extends to close the first mold 3 and the second mold 4, and then the second hydraulic cylinder 6 extends out of the extrusion head 7 to squeeze The bulging ball 9 is extruded from the bulging channel 42 and the cylindrical tube 200 is formed into the blank of the three-way pipe, after which the first hydraulic cylinder 5 is retracted to open the mold, and the bulging ball 9 is The bulging channel 42 enters the bulging ball channel 21, and falls into the quasi-bulging ball dropping pipeline 101 along the bulging ball channel 21, and the bulging ball 9 falls on the bulging ball lifting plate 103 along the pipeline, that is, one processing is completed. , This three-way pipe processing equipment does not require the participation of liquid medium, saves a lot of water, is conducive to energy saving and emission reduction, and does not require sealing, which reduces the sealing requirements of the equipment, and because no liquid medium is required, it can be processed in a cylindrical tube during processing. Lubricating oil can be applied to the surface to prevent cracks during the machining of cylindrical tubes.

In this embodiment, an axial guide port 106 is provided on the side wall of the bulging ball lifting pipe 102, and the movable end of the first linear driving device 104 extends into the bulging ball lifting pipe 102 from the guiding port 106. The first linear driving device The movable end of 104 is connected to the bulging ball lifting plate 103, the bulging ball lifting pipe 102 under the guide port 106 forms a lubricating oil storage cavity 107, and the lubricating oil storage cavity 107 is filled with lubricating oil, and the movement of the first linear drive device 104 When the end is at the bottom of the guide port 106, the bulging ball lifting plate 103 is immersed in the lubricating oil. By adopting this structure, the bulging ball 9 can automatically apply lubricating oil when entering the lubricating oil storage cavity 107, and indirectly can automatically apply the lubricating oil to the inner wall of the cylindrical tube 200, so as to realize the automatic application of the lubricating oil. It is not necessary to apply lubricating oil when loading into the cavity of the first mold 3 .

In this embodiment, a connecting rod 108 is provided on the bulging ball lifting plate 103 , the bottom of the connecting rod 108 is connected to the bulging ball lifting plate 103 , and the upper end of the connecting rod 108 is connected to the movable end of the first linear driving device 104 through the connecting member 109 superior.

In this embodiment, the extrusion head 7 is provided with a guide slope 71 , and the positioning block 8 is provided with a horizontal guide groove 81 .

In this embodiment, the positioning block 8 is provided with a notch 82 matching with the guiding inclined surface 71 .

In the present embodiment, a guide head 61 is connected to the telescopic end of the second hydraulic cylinder 6 , a lubricating oil extrusion cavity 62 is provided at the bottom of the guide head 61 , and the upper end of the extrusion head 7 is slidably arranged in the lubricating oil extrusion cavity 62 to lubricate the lubricating oil extrusion cavity 62 . The oil extrusion cavity 62 is provided with an oil inlet pipe 63 and an oil outlet pipe 64, the oil inlet pipe 63 is connected to the oil tank, the outlet of the oil outlet pipe 64 is aligned with the junction of the bulging channel 42 and the cylindrical cavity, and the oil inlet pipe 63 A check valve 65 is provided on the oil outlet pipeline 64 . With this structure, when the second hydraulic cylinder 6 extends and pushes the extrusion head 7 to press down, the extrusion head 7 will move into the lubricating oil extrusion cavity 62, and the lubricating oil in the lubricating oil extrusion cavity 62 will be pushed out of the lubricating oil extrusion cavity 62. The oil pipeline 64 is extruded to the outer wall of the cylindrical pipe 200. During the process of the retraction of the second hydraulic cylinder 6 to drive the extrusion head 7 to move upward, the extrusion head moves to the outside of the lubricating oil extrusion cavity 62 due to its own gravity, and the extrusion head moves to the outside of the lubricating oil extrusion cavity 62 due to its own gravity. The lubricating oil is automatically sucked into the lubricating oil extrusion cavity 62 from the oil tank through the oil inlet pipe 63 to realize the automatic application of the lubricating oil.

In this embodiment, a guide bracket is provided below the second hydraulic cylinder 6, the guide head 61 slides on the guide bracket 66, and a protective cover 67 is provided on the guide bracket 66, and the protective cover 67 is provided with an oil inlet pipe 63 and an oil outlet. The opening of the conduit 64 .

In this embodiment, the fixed die base 2 is provided with a punch 13 driven by the third hydraulic cylinder 12 that extends and retracts in the axial direction of the bulging channel 42, and the positioning block 8 is driven up and down by the second linear driving device 14. This embodiment Among them, the second linear driving device 14 is an air cylinder, of course, in other embodiments, it can also be a hydraulic cylinder or an electric cylinder. The opening through which the linear drive device 14 passes, a waste discharge channel 83 is arranged in the positioning block 8. When the positioning block 8 is at the top position, the inlet of the upper end of the waste discharge channel 83 is aligned with the punch 13. When the positioning block 8 is at the bottom position, The punch 13 is aligned with the center of the bulging ball 9 located above the positioning block 8 , and the third hydraulic cylinder 12 and the second linear drive device 14 are connected with a control device. With this structure, the cylindrical tube 200 does not need to be punched before being placed in the cavity of the first mold 3. After the first mold 3 and the second mold 4 are clamped, the second linear drive device 14 drives up and discharges waste. The inlet of the upper end of the channel 83 is aligned with the punch 13, the inlet of the waste discharge channel 83 is used as the lower die of the punch 13, and the third hydraulic cylinder 12 pushes the punch 13 to punch a hole on the cylindrical tube 200, and the punching produces a hole. The waste material falls from the waste discharge channel 83; it not only improves the processing efficiency, but also does not require alignment when placing the cylindrical tube 200 into the cavity of the first mold 3, and the punched hole can be accurately aligned for bulging Channel 42 to improve machining accuracy.

In this embodiment, the movable die base 1 is provided with an air passage 151 connected to the air pump 15 . When the positioning block 8 is at the top position, the outlet at the lower end of the waste discharge passage 83 is aligned with the air passage 151 , and the outlet of the bulging ball passage 21 is located at the air passage 151 . The movable door 16 is hinged to seal the outlet of the bulging ball channel 21. The rotating shaft of the movable door 16 is provided with a lever 161 radially. The tact switch 17 , the air pump 15 and the second tact switch 17 are connected with a control device. Due to the fact that the punch 13 is broken in the punching hole, there may be a situation where the punching hole does not pass through, and the situation of the punch 13 cannot be directly observed outside the fixed die base 2, and directly extruding the bulging ball 9 for bulging processing will cause problems. Excessive load on the second hydraulic cylinder 6 and the extrusion head 7 may lead to equipment damage. Therefore, it is necessary to detect whether the punching hole is punched through. During punching, after the third hydraulic cylinder 12 pushes the punching head 13 to expand and contract once, the control device controls The air pump 15 blows air into the air passage 151. Since the lower end of the exhaust passage 83 is aligned with the air passage 151 at this time, if the punching is successful, most of the gas will pass through the exhaust passage 83, the punched hole and the bulging ball passage 21. When the movable door 16 is pushed open, the second tact switch 17 will be pressed by the lever 161. If the second tact switch 17 feeds back an electrical signal to the control device, it means that the punching is successful, and the next step is continued. During processing, if the punching is unsuccessful, the second tact switch 17 will not feed back an electrical signal to the control device, and the control device will not proceed to the next step, prompting the worker to overhaul. By adopting this structure, it is possible to automatically detect whether the punching is successful, so as to prevent the second hydraulic cylinder 6 and the extrusion head 7 from being damaged due to excessive load. In addition, when the bulging ball 9 rolls out of the bulging ball channel 21, the movable door 16 will also be pushed. When the movable door 16 is pushed open, the second tact switch 17 will be pressed by the lever 161. If the second tact switch 17 feedbacks The electrical signal to the control device means that the bulging ball 9 rolls out normally. If the second tact switch 17 does not feed back an electrical signal to the control device, it means that the bulging ball 9 is stuck in the bulging ball channel 21 and needs to be repaired.

In this embodiment, the movable die base 1 is rotatably provided with a screw rod 18 with reversed equal-pitch threads at both ends, the screw rod 18 is driven to rotate by a motor 19, the motor 19 is connected with a control device, and the two ends of the screw rod 18 are screwed with a movable screw The clamping block 20, the movable mold base 1 is provided with a limit slide 21 parallel to the screw 18, and the two movable clamping blocks 20 slide in the limit slide 21 with the rotation of the screw 18. There is a through port 31 parallel to the screw 18, and the two movable clamping blocks 20 extend into the first mold 3 from the through port 31. The distance between the two movable clamping blocks 20 to the center of the bulging channel 42 is the same, and the upper movable clamp The bottom of the tightening block 20 is provided with a first tact switch 207, and the first tact switch 207 is connected to the control device. With this structure, when the cylindrical tube 200 is placed in the cavity of the first mold 3, it can be placed on the lower movable clamping block 20, and the two movable clamping blocks 20 are driven by the motor 19 to clamp the cylindrical tube. The tube 200 and the motor 19 are controlled by the control device. When the first tact switch 207 touches the cylindrical tube 200, the motor stops running. When clamping the cylindrical tube 200 of any length, it can automatically adjust and make the cylinder The midpoint of the shaped tube 200 is aligned with the center of the bulging channel 42, so that it is suitable for processing cylindrical tubes 200 of different lengths into a three-way tube.

In this embodiment, the upper movable clamping block 20 includes a casing 201 , a telescopic block 202 with a limiting step 203 , a spring 204 and a limiting block 205 . The telescopic block 202, the spring 204 and the limit block 205, the bottom of the telescopic block 202 is provided with a first tact switch 207, the limit block 205 is provided with a screw hole 206, the screw 18 passes through the housing 201 and is matched with the screw hole 206, the spring 204 can be compressed so that the telescopic block 202 avoids the cylindrical tube 200 being loaded into the first mold 3 . When the cylindrical tube 200 is loaded into the cavity of the first mold 3 , it can be conveniently loaded by extruding the telescopic block 202 , and it does not need to be loaded from the same direction as the opening direction of the first mold 3 .

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as It is the protection scope of the present invention.

Claims (4)

1. A three-way pipe processing device capable of automatically coating lubricating oil comprises an operation platform (100), wherein a movable die holder (1) and a fixed die holder (2) are arranged on the operation platform (100), a first die (3) and a second die (4) which can be closed to form a cylindrical cavity are respectively arranged on the movable die holder (1) and the fixed die holder (2), the movable die holder (1) is driven by a first hydraulic cylinder (5), an expansion channel (42) communicated with the cylindrical cavity is arranged on the second die (4), an extrusion head (7) driven by a second hydraulic cylinder (6) is arranged above the second die (4), a positioning block (8) is arranged in the first die (3), the extrusion head (7) extrudes towards the side of the positioning block (8) and can press an expansion ball (9) to the expansion channel (42), an expansion ball channel (21) is arranged in the fixed die holder (2), the inlet of the bulging ball channel (21) is communicated with the bulging channel (42), and the bulging ball channel is characterized in that: the telescopic end of the second hydraulic cylinder (6) is connected with a guide head (61), a lubricating oil extrusion cavity (62) is arranged at the bottom of the guide head (61), the upper end of an extrusion head (7) is arranged in the lubricating oil extrusion cavity (62) in a sliding manner, an oil inlet pipeline (63) and an oil outlet pipeline (64) are arranged on the lubricating oil extrusion cavity (62), the oil inlet pipeline (63) is connected with an oil tank, the outlet of the oil outlet pipeline (64) is aligned with the joint of the bulging passage (42) and the cylindrical cavity, check valves (65) are arranged on the oil inlet pipeline (63) and the oil outlet pipeline (64), the first hydraulic cylinder (5) and the second hydraulic cylinder (6) are connected with a control device, a punch (13) driven by a third hydraulic cylinder (12) and axially telescopic along the bulging passage (42) is arranged in the fixing die holder (2), locating piece (8) are gone up and down by second linear drive device (14) drive, second linear drive device (14) set up in activity die holder (1) bottom, set up in locating piece (8) and arrange useless passageway (83), work as when locating piece (8) are located the top position, the import of wasting discharge passageway (83) upper end is aimed at drift (13), works as when locating piece (8) are located the bottom position, drift (13) aim at and are located locating piece (8) top the centre of sphere of bulging ball (9), third pneumatic cylinder (12) and second linear drive device (14) are connected with controlling means.

2. The tee pipe processing equipment capable of automatically coating lubricating oil as claimed in claim 1, wherein: the extrusion head (7) is provided with a guide inclined plane (71), and the positioning block (8) is provided with a horizontal guide groove (81).

3. The tee pipe processing equipment for automatically coating lubricating oil as claimed in claim 2, characterized in that: and a notch (82) matched with the guide inclined plane (71) is arranged on the positioning block (8).

4. The tee pipe processing equipment capable of automatically coating lubricating oil as claimed in claim 1, wherein: be provided with air flue (151) of connecting air pump (15) on movable die holder (1), work as when locating piece (8) are located the top position, the export of exhaust passage (83) lower extreme is aimed at air flue (151), bulging ball passageway (21) exit articulates there is sealed dodge gate (16) of bulging ball passageway (21) export, radial driving lever (161) are provided with in the pivot of dodge gate (16), dodge gate (16) one side be provided with on fixed die holder (2) with driving lever (161) complex second light touch switch (17), air pump (15) and second light touch switch (17) are connected with controlling means.

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