A GIS pipe shell length-fixing and groove-making device

Abstract

The present invention relates to the technical field of pipeline processing, and specifically to a GIS pipeline shell length-fixing and groove-making equipment, comprising a base and a cutting unit; a support unit is horizontally arranged on the cutting unit, and the support unit comprises a horizontally arranged main shaft, and the main shaft extends into the pipeline along the axis of the pipeline when supporting the pipeline, and a through slot is provided on the main shaft along the axis of the main shaft, and a blowing rod is slidably provided on the through slot along the extension direction of the through slot, and a blowing groove is provided on the blowing rod along the axial direction of the blowing rod, and the blowing groove is communicated with the through slot, and a support plate is provided on the side wall of the main shaft along the radial direction of the main shaft, and when gas is introduced into the through slot, the support plate is unfolded and contacts the inner wall of the pipeline, and then air continues to be introduced into the through slot, and the blowing rod extends from one end of the main shaft located in the pipeline, and the blowing groove is communicated with the inside of the pipeline, and the through slot injects air into the pipeline through the blowing groove. The present invention avoids the situation that the coolant carrying metal chips accidentally falls into the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline processing, and in particular to a GIS pipeline shell length fixing and groove equipment. Background Art

[0002] After the tensioning part of the current pipe beveling machine abuts against the inner wall of the pipe, it is difficult for the axis of the tensioning part to coincide with the axis of the pipe, resulting in poor quality of the bevel formed by the cutting part of the pipe beveling machine cutting the end face of the pipe, which in turn leads to poor welding quality when the pipe is subsequently welded.

[0003] Chinese patent CN114850577B discloses a pipe beveling machine, comprising: a main shaft, and a first drive assembly, a tensioning assembly, a cutting assembly and a second drive assembly sleeved on the main shaft; the tensioning assembly comprises: a first guide flange, a second guide flange, a synchronization ring and a plurality of tensioning blocks, the first guide flange is fixedly connected to the first drive assembly, the second guide flange is fixedly connected to the main shaft, the synchronization ring is slidably connected to the main shaft, the plurality of tensioning blocks are distributed around the main shaft, and are all located between the first guide flange and the plurality of second guide flanges, each of the tensioning blocks is movably connected to the first guide flange and the second guide flange, and is clamped to the synchronization ring; the first The driving assembly is configured to: when the main shaft extends into the pipe to be cut, move in the direction close to the tensioning assembly to drive the multiple tensioning blocks to move in the direction close to the inner wall of the pipe at the same time, so that each of the tensioning blocks abuts against the inner wall of the pipe; the cutting assembly is located on the side of the tensioning assembly away from the first driving assembly, and the cutting assembly is movably connected to the main shaft; the second driving assembly is connected to the side of the cutting assembly away from the tensioning assembly, and the second driving assembly is configured to: after each of the tensioning blocks in the tensioning assembly abuts against the inner wall of the pipe, drive the cutting assembly to rotate on the main shaft, so that the cutting assembly cuts the end face of one end of the pipe.

[0004] The tensioning assembly in the above scheme can make its own axis parallel to the pipe after tensioning, but when cutting, the chips cut from the end of the pipe will splash everywhere, and coolant needs to be sprayed on the cutting position during cutting. The coolant will fall to the bottom of the equipment when the end of the pipe is cut, but not all of the coolant can fall smoothly to the bottom of the equipment. Part of the coolant will remain in the pipe and carry some metal chips to the bottom of the pipe. Therefore, after each groove processing, the entire pipe needs to be cleaned, which affects the processing efficiency of the pipe. Summary of the invention

[0005] In view of the above problems, a GIS pipeline shell fixed length and groove equipment is provided. When the pipeline is placed on the support seat and adjusted to a specified height by the support seat, the cutting unit drives the support unit toward the end of the pipeline. At this time, the support plate on the main shaft is in a retracted state. At this time, the circular diameter formed by the support plate arranged around the main shaft is the smallest. An air pump is arranged on the end of the through groove located on the outside of the pipeline. The air pump can supply air to the through groove. When the main shaft stops moving, the air pump starts and starts to supply air to the through groove. At this time, the support plate arranged on the side wall of the main shaft starts to move synchronously and unfold along the radial direction of the main shaft. The unfolded support plate moves toward the inner wall of the pipeline. When the support plate contacts the inner wall of the pipeline, the air pump continues to ventilate. At this time, the blowing rod located in the through groove can move toward the end of the main shaft located in the pipeline under the action of air pressure. When the blowing rod is completely located in the through groove, the blowing rod The blowing groove on the blowing rod can only be communicated with the through groove, that is, when the blowing rod is completely located in the through groove, the blowing groove on the blowing rod cannot be communicated with the inside of the pipe, and the gas in the through groove is still continuously blown in at this time, so that the blowing rod can be pushed by the continuously increasing air pressure in the through groove, and the blowing rod moves along the extension direction of the through groove toward the end of the through groove located in the pipe. When the end of the blowing rod extends from the end of the through groove located in the pipe, the blowing groove on the blowing rod is connected with the pipe, so that the air in the through groove can be injected into the pipe. Since both ends of the pipe will be cut by two cutting units at the same time during processing, the supporting units arranged on the two cutting units can inject air into the pipe at the same time, so that an airflow flowing from the inside to the outside is generated in the pipe, so as to avoid the situation where the coolant carries metal chips and accidentally falls into the pipe, thereby avoiding subsequent cleaning work and improving the processing efficiency.

[0006] In order to solve the problems of the prior art, the present invention provides a GIS pipeline shell fixed length and groove equipment, comprising a horizontally arranged base and cutting units respectively slidably arranged at both ends of the base along the length direction of the base; a support unit for supporting and fixing the end of the pipeline is horizontally arranged on the cutting unit, and the support unit comprises a horizontally arranged main shaft, and the main shaft extends into the pipeline along the axis of the pipeline when supporting the pipeline, a through groove is provided on the main shaft along the axis of the main shaft, a blowing rod is slidably provided on the through groove along the extension direction of the through groove, a blowing groove is provided on the blowing rod along the axial direction of the blowing rod, the blowing groove is communicated with the through groove, a support plate is movable along the radial direction of the main shaft on the side wall of the main shaft, when gas is introduced into the through groove, the support plate is unfolded and contacts the inner wall of the pipeline, and then air continues to be introduced into the through groove, the blowing rod extends from one end of the main shaft located in the pipeline, the blowing groove is communicated with the inside of the pipeline, and the through groove injects air into the pipeline through the blowing groove.

[0007] Preferably, an unfolding unit for pushing the support plate to move along the radial direction of the main shaft is provided in the main shaft, the unfolding unit includes a pushing ring slidably arranged in the through groove along the extension direction of the through groove, a sliding groove is opened on the side wall of the through groove along the axial direction of the main shaft, the pushing ring extends from the sliding groove along the radial direction of the main shaft and slides with the sliding groove along the axial direction of the main shaft, a first connecting rod is provided between the pushing ring and the support plate, two ends of the first connecting rod are respectively hinged to the pushing ring and the support plate, a second connecting rod is also provided on one side of the first connecting rod, two ends of the second connecting rod are respectively hinged to the pushing ring and the outer wall of the main shaft.

[0008] Preferably, there is a gap between the push ring and the end of the blowing rod, and a spring is arranged in the gap along the extension direction of the through slot, and both ends of the spring are fixedly connected to the push ring and the end of the blowing rod respectively.

[0009] Preferably, an air lock unit is provided on one side of the push ring, and an air lock cavity is formed between the air lock unit and the push ring. When the air lock unit is closed, the air lock cavity is disconnected from the inside of the pipeline. When the air lock unit is opened, the air lock cavity is connected to the inside of the pipeline. A first pressure sensor is provided on the support plate. The first pressure sensor is used to monitor the pressure when the support plate supports the inner wall of the pipeline. The first pressure sensor is preset with a rated pressure. When the actual pressure detected by the first pressure sensor reaches the rated pressure, the air lock unit is closed, and the air lock cavity is disconnected from the inside of the pipeline.

[0010] Preferably, a ventilation ring is fixedly provided on one end of the through groove located in the pipeline, the inner ring of the ventilation ring is slidably matched with the outer wall of the blowing rod, and a sealing ring is provided on the inner ring of the ventilation ring, and a ventilation hole is opened on the ventilation ring along the extension direction of the through groove, and a switch valve is provided on the ventilation hole to form an air lock chamber between the ventilation ring and the push ring.

[0011] Preferably, an electromagnet is provided on the push ring, and the electromagnet is used to attract one end of the blowing rod located in the through groove. After the air lock unit is closed, the electromagnet is powered on and started.

[0012] Preferably, an airflow guide unit is also provided on the main shaft, and the airflow guide unit includes a rotating ring which is sleeved on the extension of the push ring and rotates around the axis of the main shaft, and the rotating ring moves synchronously with the push ring. A rotating sleeve is sleeved on the side wall of the main shaft on one side of the rotating ring, and the rotating sleeve rotates around the axis of the main shaft. Blades are hinged on the rotating sleeve, and a third connecting rod is provided between the blades and the rotating ring. Both ends of the third connecting rod are hinged to the blades and the rotating ring respectively, and a driving unit for driving the rotating sleeve to rotate is provided on the end of the rotating sleeve away from the rotating ring.

[0013] Preferably, the cutting unit includes a rotating disk, the axis of the rotating disk is parallel to the extension direction of the base, the cutting tool is arranged at the end of the rotating disk and moves along the radial direction of the rotating disk, and a second pressure sensor is also provided at the end of the rotating disk, and the second pressure sensor can be activated by pressing the end of the pipe.

[0014] Preferably, a plurality of rollers are arranged on the rotating disk, the rollers are arranged at the ends of the rotating disk so as to rotate along the radial direction of the rotating disk, and the second pressure sensors are arranged on the side walls of the rollers.

[0015] Preferably, a rangefinder is horizontally arranged on one side of one of the cutting units, the measuring end of the rangefinder is horizontally pointed to the other cutting unit, the corrugated sleeve is sleeved on the periphery of the rangefinder along the extension direction of the base, and the two ends of the corrugated sleeve are respectively fixedly connected to the two cutting units.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the pipeline is placed on the support seat and adjusted to a specified height by the support seat, the cutting unit drives the support unit toward the end of the pipeline. At this time, the support plate on the spindle is in a retracted state. At this time, the circular diameter formed by the support plate arranged around the spindle is the smallest. An air pump is arranged on the end of the through slot located on the outside of the pipeline. The air pump can supply air to the through slot. When the spindle stops moving, the air pump starts and starts to supply air to the through slot. At this time, the support plate arranged on the side wall of the spindle starts to move synchronously and unfold along the radial direction of the spindle. The unfolded support plate moves toward the inner wall of the pipeline. When the support plate contacts the inner wall of the pipeline, the air pump continues to ventilate. At this time, the blowing rod located in the through slot can move toward the end of the spindle located in the pipeline under the action of air pressure. When the blowing rod is completely located in the through slot, the blowing groove on the blowing rod can only communicate with the through slot. That is, when the blowing rod is completely located in the through groove, the blowing groove on the blowing rod cannot communicate with the inside of the pipe, while the gas in the through groove is still continuously blown in at this time, so the blowing rod can be pushed by the continuously increasing air pressure in the through groove, and the blowing rod moves along the extension direction of the through groove toward the end of the through groove located in the pipe, and when the end of the blowing rod extends from the end of the through groove located in the pipe, the blowing groove on the blowing rod and the pipe are connected to each other, so that the air in the through groove can be injected into the pipe. Since both ends of the pipe will be cut by two cutting units at the same time during processing, the supporting units arranged on the two cutting units can inject air into the pipe at the same time, so that an airflow flowing from the inside to the outside is generated in the pipe, so that the coolant can be prevented from accidentally falling into the pipe with metal chips, thereby avoiding subsequent cleaning work and improving processing efficiency.

[0018] 2. By setting an air lock unit on one side of the push ring, it is ensured that the push ring can be fixed after the support plate supports the inner wall of the pipeline. At the same time, the electromagnet set on the push ring also ensures the stability of the connection between the blowing groove in the blowing rod and the pipeline, thereby ensuring the stability of the air flow in the pipeline.

[0019] 3. By setting up the air flow guide unit, the air flow direction in the pipeline can be correctly guided, ensuring that the coolant and metal chips can be blown out by the air flow flowing out of the pipeline without falling into the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a GIS pipe shell length-fixing and groove-making device.

[0021] Figure 2 It is a GIS pipe shell fixed length and groove equipment Figure 1 A local enlarged schematic diagram of point A in the middle.

[0022] Figure 3 It is a side view of a GIS pipe shell fixed length and groove equipment.

[0023] Figure 4 It is a GIS pipe shell fixed length and groove equipment Figure 3 A local enlarged schematic diagram of the middle BB.

[0024] Figure 5 It is a GIS pipe shell fixed length and groove equipment Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0025] Figure 6 The invention discloses a three-dimensional schematic diagram of a cutting unit provided with a supporting unit of a GIS pipe shell fixing and beveling equipment.

[0026] Figure 7 It is a GIS pipe shell fixed length and groove equipment Figure 6 A local enlarged schematic diagram of point D in the middle.

[0027] Figure 8 It is a GIS pipe shell fixed length and groove equipment Figure 6 A partial enlarged schematic diagram of point E in the middle.

[0028] Fig. 9 The invention discloses a cutaway stereoscopic schematic diagram of a cutting unit provided with a supporting unit of a GIS pipe shell length fixing and groove cutting device.

[0029] Fig.10 It is a GIS pipe shell fixed length and groove equipment Fig. 9 A partial enlarged schematic diagram of point F in the middle.

[0030] Fig.11 It is a GIS pipe shell fixed length and groove equipment Fig. 9 A local enlarged schematic diagram of point G in the middle.

[0031] Fig.12 The invention is a stereoscopic schematic diagram of a cutting unit of a GIS pipe shell fixing and beveling equipment provided with a supporting unit and with the main shaft removed.

[0032] The numbers in the figure are:

[0033] 1. Base; 2. Cutting unit; 21. Rotating disk; 22. Cutting knife; 23. Roller; 3. Support unit; 31. Spindle; 32. Through slot; 321. Air pump; 33. Support plate; 34. Blowing rod; 341. Blowing slot; 35. Expanding unit; 351. Pushing ring; 3511. Extension part; 352. First connecting rod; 353. Second connecting rod; 354. Spring; 36. Air lock unit; 361. Air lock chamber; 362. Ventilation ring; 363. Switch valve; 364. Electromagnet; 4. Pipeline; 5. Support seat; 6. Air flow guide unit; 61. Rotating ring; 62. Drive unit; 621. Rotating drive; 622. Gear; 623. Gear ring; 624. Fixed frame; 63. Rotating sleeve; 64. Blade; 65. Third connecting rod; 7. Distance meter; 71. Corrugated sleeve. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Reference Figure 1 , Figure 3 , Figure 4 , Fig. 9 , Fig.10 and Fig.11A GIS pipeline shell length fixing and groove device, comprising a horizontally arranged base 1 and cutting units 2 respectively slidably arranged at both ends of the base 1 along the length direction of the base 1; a support unit 3 for supporting and fixing the end of a pipeline 4 is horizontally arranged on the cutting unit 2, and the support unit 3 comprises a horizontally arranged main shaft 31, the main shaft 31 extends into the pipeline 4 along the axis of the pipeline 4 when supporting the pipeline 4, a through groove 32 is opened on the main shaft 31 along the axis of the main shaft 31, and a through groove 32 is slidably arranged on the through groove 32 along the extension direction of the through groove 32 There is a blowing rod 34, on which a blowing groove 341 is opened along the axial direction of the blowing rod 34, the blowing groove 341 is communicated with the through groove 32, and a support plate 33 is provided on the side wall of the main shaft 31 so as to move along the radial direction of the main shaft 31. When gas is introduced into the through groove 32, the support plate 33 is unfolded and contacts with the inner wall of the pipe 4, and then air continues to be introduced into the through groove 32. The blowing rod 34 extends from one end of the main shaft 31 located in the pipe 4, the blowing groove 341 is communicated with the inside of the pipe 4, and the through groove 32 injects air into the pipe 4 through the blowing groove 341.

[0036] A support seat 5 is fixedly arranged on the base 1, and the support seat 5 supports the pipe 4. Before cutting, the pipe 4 needs to be placed horizontally on the upper part of the support seat 5. At this time, the two cutting units 2 arranged on the base 1 need to be located at both ends of the base 1, so that the distance between the two cutting units 2 reaches the maximum value. At this time, the straight-line distance between the two cutting units 2 is the longest distance of the pipe 4 that can be processed by this equipment. After the pipe 4 is placed on the support seat 5, the two cutting units 2 arranged on the base 1 are close to each other, that is, the two cutting units 2 move toward the two ends of the pipe 4 at the same time. It is worth noting that the support seat 5 has a lifting function, and the structure of the support seat 5 with a lifting function is mostly existing technology, which will not be repeated here, and in relative The accompanying drawings also simplify the expression. The support unit 3 in the present invention adopts an internal expansion support fixing method, that is, the pipe 4 is first supported and fixed by the support unit 3, and then the end of the pipe 4 is cut by the cutting unit 2. When the pipe 4 is cut, it is usually necessary to spray coolant on the processing position. In this way, the coolant will carry metal chips into the pipe 4 during the dripping process during cutting. In this way, the coolant and metal chips in the pipe 4 need to be cleaned after cleaning. The work process is relatively cumbersome. The support unit 3 in the present invention can avoid the occurrence of the above situation. The specific working principle is as follows. Since the working principles of the two cutting units 2 arranged on the base 1 are exactly the same, one of the cutting units 2 is taken as an example for description. A plurality of support plates 33 are arranged on the spindle 31, and the plurality of support plates 33 are evenly arranged on the spindle 31 around the axis of the spindle 31. The plurality of support plates 33 can be opened at the same time after gas is introduced into the through slot 32 in the spindle 31, and can also be contracted at the same time when the gas in the through slot 32 is extracted. When the pipeline 4 is placed on the support seat 5 and adjusted to a specified height by the support seat 5, the cutting unit 2 drives the support unit 3 to approach the end of the pipeline 4. At this time, the support plates 33 on the spindle 31 are in a retracted state. At this time, the circular diameter formed by the support plates 33 arranged around the spindle 31 is the smallest. An air pump 321 is arranged on the end of the through slot 32 located on the outside of the pipeline 4. The air pump 321 can supply air to the through slot 32. When the spindle 31 stops moving, the air pump 321 starts The air pump 321 starts to supply air to the through groove 32. At this time, the support plate 33 arranged on the side wall of the main shaft 31 starts to move synchronously and expand along the radial direction of the main shaft 31. The expanded support plate 33 moves toward the inner wall of the pipe 4. When the support plate 33 contacts the inner wall of the pipe 4, the air pump 321 continues to ventilate. At this time, the blowing rod 34 located in the through groove 32 can move toward the end of the main shaft 31 located in the pipe 4 under the action of air pressure. When the blowing rod 34 is completely located in the through groove 32, the blowing groove 341 on the blowing rod 34 can only communicate with the through groove 32, that is, when the blowing rod 34 is completely located in the through groove 32, the blowing groove 341 on the blowing rod 34 cannot communicate with the inside of the pipe 4, and the gas in the through groove 32 is still continuously blown in at this time.In this way, the blowing rod 34 can be pushed by the increasing air pressure in the through groove 32, and the blowing rod 34 moves along the extension direction of the through groove 32 toward the end of the through groove 32 located in the pipe 4. When the end of the blowing rod 34 extends from the end of the through groove 32 located in the pipe 4, the blowing groove 341 on the blowing rod 34 and the pipe 4 are connected to each other, so that the air in the through groove 32 can be injected into the pipe 4. Since both ends of the pipe 4 will be cut by the two cutting units 2 at the same time during processing, the support units 3 set on the two cutting units 2 can inject air into the pipe 4 at the same time, so that an airflow flowing from the inside to the outside is generated in the pipe 4, so that the coolant can be prevented from accidentally falling into the pipe 4 with metal chips, thereby avoiding subsequent cleaning work and improving processing efficiency.

[0037] Reference Figure 6 , Figure 8 and Fig.10 : An unfolding unit 35 for pushing the support plate 33 to move along the radial direction of the main shaft 31 is provided in the main shaft 31. The unfolding unit 35 includes a pushing ring 351 slidably arranged in the through groove 32 along the extension direction of the through groove 32. A sliding groove is opened on the side wall of the through groove 32 along the axial direction of the main shaft 31. The pushing ring 351 extends from the sliding groove along the radial direction of the main shaft 31 and slides with the sliding groove along the axial direction of the main shaft 31. A first connecting rod 352 is provided between the pushing ring 351 and the support plate 33. The two ends of the first connecting rod 352 are respectively hinged to the pushing ring 351 and the support plate 33. A second connecting rod 353 is also provided on one side of the first connecting rod 352. The two ends of the second connecting rod 353 are respectively hinged to the pushing ring 351 and the outer wall of the main shaft 31.

[0038] In this way, when the main shaft 31 is extended into the pipe 4, the blowing rod 34 is located in the through groove 32, and the blowing groove 341 is only connected to the through groove 32. After air is injected into the through groove 32, the blowing rod 34 and the pushing ring 351 slide synchronously along the extension direction of the through groove 32. The pushing ring 351 can push the first connecting rod 352 to rotate while moving, so that the support plate 33 moves along the radial direction of the main shaft 31, and finally enables the support plate 33 to support and fix the inner wall of the pipe 4, thereby preventing the cutting unit 2 from cutting the end of the pipe 4 and causing the pipe 4 to be driven to rotate by the cutting unit 2. When the support plate 33 contacts the inner wall of the pipe 4, gas continues to be introduced into the through groove 32. At this time, the gas continues to push the blowing rod 34, so that the end of the blowing rod 34 can extend from the end of the through groove 32 located in the pipe 4.

[0039] Reference Fig.10 : There is a gap between the push ring 351 and the end of the blowing rod 34, and a spring 354 is arranged in the gap along the extension direction of the through groove 32, and the two ends of the spring 354 are fixedly connected to the push ring 351 and the end of the blowing rod 34 respectively.

[0040] In this way, when the main shaft 31 is extended into the pipe 4 and stops moving, the support plate 33 is unfolded and contacts the inner wall of the pipe 4, and then the air pump 321 injects gas into the through groove 32. At this time, the gas in the through groove 32 pushes the blowing rod 34, and the blowing rod 34 pushes the pushing ring 351 along the extension direction of the through groove 32 through the spring 354. When the pushing ring 351 pushes the supporting plate 33 to the inner wall of the pipe 4 and makes the supporting plate 33 contact the inner wall of the pipe 4, the pushing ring 351 can no longer move. At this time, the spring 354 arranged between the blowing rod 34 and the pushing ring 351 can ensure that the blowing rod 34 can continue to move. It is worth noting that the side wall of one end of the blowing rod 34 facing the cutting unit 2 is in contact with the through groove 32. The clearance fit allows the spring 354 between the blowing rod 34 and the pushing ring 351 to be squeezed smoothly. When the pushing ring 351 stops moving, the blowing rod 34 can continue to move. The purpose is that if the diameter of the pipe 4 supported by the support plate 33 is small, then when the pushing ring 351 stops, the blowing rod 34 is still located in the through groove 32, that is, the blowing groove 341 on the blowing rod 34 is not connected to the pipe 4 at this time, so gas cannot be blown into the pipe 4. After the spring 354 is set between the pushing ring 351 and the end of the blowing rod 34, it can be ensured that after the pushing ring 351 stops moving, the blowing rod 34 still has a certain amount of movement clearance, thereby ensuring that the blowing groove 341 can be smoothly connected to the pipe 4.

[0041] Reference Figure 5 : An air lock unit 36 ​​is arranged on one side of the push ring 351, and an air lock chamber 361 is formed between the air lock unit 36 ​​and the push ring 351. When the air lock unit 36 ​​is closed, the air lock chamber 361 is disconnected from the inside of the pipeline 4. When the air lock unit 36 ​​is opened, the air lock chamber 361 is connected to the inside of the pipeline 4. A first pressure sensor is arranged on the support plate 33. The first pressure sensor is used to monitor the pressure when the support plate 33 supports the inner wall of the pipeline 4. The first pressure sensor is preset with a rated pressure. When the actual pressure detected by the first pressure sensor reaches the rated pressure, the air lock unit 36 ​​is closed, and the air lock chamber 361 is disconnected from the inside of the pipeline 4.

[0042] The air lock chamber 361 is formed by the end of the push ring 351, the side wall of the blowing rod 34, the air lock unit 36 ​​and the inner wall of the through groove 32. The air lock chamber 361 is not connected to the sliding groove at all times. Before the support plate 33 contacts the inner wall of the pipe 4, the air lock unit 36 ​​is always in an open state, and the air lock chamber 361 is always in a connected state with the pipe 4. In this way, only when the air lock unit 36 ​​is in an open state can the push ring 351 slide smoothly. After gas is injected into the through groove 32, the gas pushes the blowing rod 34, and the blowing rod 34 pushes the push ring 351 through the spring 354. When the support plate 33 contacts the inner wall of the pipe 4, the first pressure sensor on the support plate 33 can monitor the pressure. As the blowing rod 34 is moved under the action of the air pressure in the through groove 32 As the sliding continues, the spring 354 between the blowing rod 34 and the pushing ring 351 is continuously compressed, so that the supporting force of the support plate 33 on the inner wall of the pipe 4 is continuously increased. When the first pressure sensor detects that the pressure has reached the rated pressure, the air lock unit 36 ​​is closed, so that the pushing ring 351 can no longer move along the extension direction of the through groove 32, thereby ensuring the supporting and fixing effect of the support plate 33 on the inner wall of the pipe 4. Subsequently, the gas in the through groove 32 continues to flow in, and the gas continues to push the blowing rod 34, and the blowing rod 34 further compresses the spring 354. When the blowing groove 341 in the blowing rod 34 is connected to the pipe 4, the spring 354 will not be further compressed, so that the through groove 32 can blow air into the pipe 4 through the blowing groove 341.

[0043] Reference Figure 8 A ventilation ring 362 is fixedly arranged on one end of the through groove 32 located in the pipeline 4, the inner ring of the ventilation ring 362 is slidably matched with the outer wall of the blowing rod 34, and a sealing ring is arranged on the inner ring of the ventilation ring 362, and a ventilation hole is opened on the ventilation ring 362 along the extension direction of the through groove 32, and a switch valve 363 is arranged on the ventilation hole, and an air lock chamber 361 is formed between the ventilation ring 362 and the push ring 351.

[0044] In order to ensure the sealing of the air lock chamber 361, a sealing ring is also provided on the inner ring of the push ring 351. The push ring 351 slides with the blowing rod 34 through the sealing ring. At this time, under the action of the air pressure in the through groove 32, the push ring 351 approaches the ventilation ring 362, and the volume of the air lock chamber 361 gradually decreases. When the first pressure sensor reaches the rated pressure, the switch valve 363 is closed, so that the air lock chamber 361 can no longer be connected with the pipeline 4, thereby realizing the air lock function.

[0045] Reference Fig.10 : An electromagnet 364 is provided on the push ring 351, and the electromagnet 364 is used to attract one end of the blowing rod 34 located in the through groove 32. After the air lock unit 36 ​​is closed, the electromagnet 364 is powered on and started.

[0046] After the air lock unit 36 ​​is closed, air continues to flow into the through groove 32, and the air pressure in the through groove 32 pushes the blowing rod 34 along the extension direction of the through groove 32, and the blowing rod 34 extends from the end of the through groove 32 located in the pipe 4. However, at this time, the spring 354 between the blowing rod 34 and the pushing ring 351 is in a compressed state. When the blowing groove 341 in the blowing rod 34 is connected to the pipe 4, the air pressure in the through groove 32 will suddenly drop, so that the blowing rod 34 will extend along the extension direction of the through groove 32. The reciprocating movement causes the air to enter the pipe 4 intermittently, and the smooth flow of air in the pipe 4 cannot be guaranteed. In order to avoid the above situation, after the air lock unit 36 ​​is closed, the electromagnet 364 is energized and adsorbs the end of the blowing rod 34, thereby ensuring that the elastic force of the spring 354 cannot affect the blowing rod 34, and thus ensuring that after the blowing rod 34 extends from the end of the through groove 32, the blowing groove 341 can be stably connected with the pipe 4, and the airflow in the pipe 4 can flow stably.

[0047] Reference Figure 7 , Fig. 9 , Fig.11 and Fig.12 : An airflow guide unit 6 is also provided on the main shaft 31, and the airflow guide unit 6 includes a rotating ring 61 which is sleeved on the extension part 3511 of the pushing ring 351 and rotates around the axis of the main shaft 31. The rotating ring 61 moves synchronously with the pushing ring 351, and a rotating sleeve 63 is sleeved on the side wall of the main shaft 31 on one side of the rotating ring 61. The rotating sleeve 63 rotates around the axis of the main shaft 31, and a blade 64 is hinged on the rotating sleeve 63. A third connecting rod 65 is provided between the blade 64 and the rotating ring 61, and both ends of the third connecting rod 65 are respectively hinged to the blade 64 and the rotating ring 61, and a driving unit 62 for driving the rotating sleeve 63 to rotate is provided on the end of the rotating sleeve 63 away from the rotating ring 61.

[0048] The driving unit 62 includes a rotation driver 621, a gear 622, a gear ring 623 and a fixed frame 624. The gear ring 623 is fixedly sleeved on the periphery of the rotating sleeve 63, and the gear 622 is rotatably arranged on one side of the gear ring 623. The gear 622 and the gear ring 623 are meshed with each other. The rotation driver 621 is arranged at the end of the gear 622 and can drive the gear 622 to rotate. A fixed frame 624 is fixedly arranged at the end of the main shaft 31. The rotation driver 621 is fixedly arranged on the fixed frame 624, and the gear 622 and the gear ring 623 are both installed on the fixed frame 624. The airflow guide unit 6 is used to guide the airflow in the pipeline 4 toward the end of the pipeline 4. When the push ring 351 is pushed by the gas in the through groove 32, the push ring 351 drives the rotating ring 61 to move synchronously through the extension part 3511, so that the rotating ring 61 can drive the third connecting rod 65 to rotate, thereby making the blades 64 hinged on the rotating sleeve 63 unfold, and then the driving unit 62 drives the rotating sleeve 63 to rotate, so that the blades 64 hinged on the rotating sleeve 63 can rotate, and the blades 64 drive the rotating ring 61 to rotate through the third connecting rod 65, so that the rotating ring 61 will not affect the push ring 351 when rotating, and the push ring 351 will not hinder the rotation of the rotating ring 61. The rotating blades 64 can guide the air in the pipeline 4 to the end of the pipeline 4, so that the airflow flowing out from the end of the pipeline 4 can blow out the coolant and metal chips that float into the pipeline 4.

[0049] Reference Fig.12 The cutting unit 2 comprises a rotating disk 21, the axis of which is parallel to the extension direction of the base 1, and a cutting blade 22 is arranged at the end of the rotating disk 21 for movement along the radial direction of the rotating disk 21. A second pressure sensor is also arranged at the end of the rotating disk 21, and the second pressure sensor can be activated by pressing the end of the pipe 4.

[0050] Reference Fig.12 : A plurality of rollers 23 are arranged on the rotating disk 21 . The rollers 23 are arranged at the ends of the rotating disk 21 and rotate along the radial direction of the rotating disk 21 . The second pressure sensor is arranged on the side wall of the rollers 23 .

[0051] When the pipe 4 is placed on the support seat 5, the cutting unit 2 moves toward the pipe 4, and when the cutting unit 2 contacts the end of the pipe 4, the roller 23 will first contact the end of the pipe 4, and then the cutting knife 22 will move along the radial direction of the rotating disk 21, and then the moving cutting knife 22 moves along the radial direction of the rotating disk 21 toward the axis of the rotating disk 21, so that the cutting knife 22 can contact the end of the pipe 4, and then the cutting knife 22 rotates, so that the groove processing can be performed on the end of the pipe 4, and at the same time, the roller 23 in contact with the end of the pipe 4 rolls relative to each other, reducing the friction between the rotating disk 21 and the end of the pipe 4. After the second pressure sensor contacts the pipe 4, the air pump 321 starts, and the cutting knife 22 also starts to move.

[0052] Reference Figure 2 A rangefinder 7 is horizontally arranged on one side of one of the cutting units 2, and the measuring end of the rangefinder 7 is horizontally pointed to the other cutting unit 2. A corrugated sleeve 71 is sleeved on the periphery of the rangefinder 7 along the extension direction of the base 1, and the two ends of the corrugated sleeve 71 are fixedly connected to the two cutting units 2 respectively.

[0053] When both cutting units 2 are in contact with both ends of the pipe 4, the distance measured by the distance meter 7 is the distance of the pipe 4, so the length of the pipe 4 can be determined. The corrugated sleeve 71 is used to reduce the influence of external light on the distance meter 7, thereby ensuring the accuracy of the distance meter 7.

[0054] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A GIS pipeline shell length fixing and groove cutting device, comprising a horizontally arranged base (1) and cutting units (2) respectively slidably arranged at both ends of the base (1) along the length direction of the base (1); It is characterized in that A support unit (3) is horizontally arranged on the cutting unit (2) for supporting and fixing the end of the pipeline (4). The support unit (3) comprises a horizontally arranged main shaft (31). When supporting the pipeline (4), the main shaft (31) extends into the pipeline (4) along the axis of the pipeline (4). A through groove (32) is provided on the main shaft (31) along the axis of the main shaft (31). A blowing rod (34) is slidably arranged on the through groove (32) along the extension direction of the through groove (32). A blowing rod (34) is provided on the blowing rod (34) along the axis direction of the blowing rod (34). The main shaft (31) has a groove (341), the blowing groove (341) is connected to the through groove (32), a support plate (33) is provided on the side wall of the main shaft (31) and moves along the radial direction of the main shaft (31), when gas is introduced into the through groove (32), the support plate (33) is unfolded and contacts the inner wall of the pipe (4), and then air continues to be introduced into the through groove (32), the blowing rod (34) extends from one end of the main shaft (31) located in the pipe (4), the blowing groove (341) is connected to the inside of the pipe (4), and the through groove (32) injects air into the pipe (4) through the blowing groove (341); An unfolding unit (35) for pushing the support plate (33) to move along the radial direction of the main shaft (31) is arranged in the main shaft (31). The unfolding unit (35) comprises a pushing ring (351) slidably arranged in the through groove (32) along the extension direction of the through groove (32). A sliding groove is provided on the side wall of the through groove (32) along the axial direction of the main shaft (31). The pushing ring (351) extends from the sliding groove along the radial direction of the main shaft (31) and slides with the sliding groove along the axial direction of the main shaft (31). A first connecting rod (352) is arranged between the pushing ring (351) and the support plate (33). Two ends of the first connecting rod (352) are respectively hinged to the pushing ring (351) and the support plate (33). A second connecting rod (353) is also arranged on one side of the first connecting rod (352). Two ends of the second connecting rod (353) are respectively hinged to the pushing ring (351) and the outer wall of the main shaft (31). There is a gap between the push ring (351) and the end of the blowing rod (34), and a spring (354) is arranged in the gap along the extension direction of the through groove (32), and the two ends of the spring (354) are fixedly connected to the push ring (351) and the end of the blowing rod (34) respectively; An airflow guide unit (6) is also provided on the main shaft (31). The airflow guide unit (6) comprises a rotating ring (61) sleeved on an extension portion (3511) of the push ring (351) and rotating around the axis of the main shaft (31). The rotating ring (61) moves synchronously with the push ring (351). A rotating sleeve (63) is sleeved on a side wall of the main shaft (31) on one side of the rotating ring (61). The rotating sleeve (63) rotates around the axis of the main shaft (31). A blade (64) is hingedly connected to the rotating sleeve (63). A third connecting rod (65) is provided between the blade (64) and the rotating ring (61). Two ends of the third connecting rod (65) are respectively hingedly connected to the blade (64) and the rotating ring (61). A driving unit (62) for driving the rotating sleeve (63) to rotate is provided on one end of the rotating sleeve (63) away from the rotating ring (61).

2. A GIS pipeline shell length fixing and groove cutting device according to claim 1, characterized in that: An air lock unit (36) is provided on one side of the push ring (351), and an air lock chamber (361) is formed between the air lock unit (36) and the push ring (351). When the air lock unit (36) is closed, the air lock chamber (361) and the inside of the pipeline (4) are in a disconnected state. When the air lock unit (36) is opened, the air lock chamber (361) and the inside of the pipeline (4) are in a connected state. A first pressure sensor is provided on the support plate (33), and the first pressure sensor is used to monitor the pressure when the support plate (33) supports the inner wall of the pipeline (4). The first pressure sensor is preset with a rated pressure. When the actual pressure detected by the first pressure sensor reaches the rated pressure, the air lock unit (36) is closed, and the air lock chamber (361) and the inside of the pipeline (4) are in a disconnected state.

3. A GIS pipeline shell length fixing and groove cutting device according to claim 2, characterized in that: A vent ring (362) is fixedly arranged on one end of the through groove (32) located in the pipeline (4); the inner ring of the vent ring (362) is slidably matched with the outer wall of the blowing rod (34); a sealing ring is arranged on the inner ring of the vent ring (362); a vent hole is formed on the vent ring (362) along the extension direction of the through groove (32); a switch valve (363) is arranged on the vent hole; and an air lock chamber (361) is formed between the vent ring (362) and the push ring (351).

4. A GIS pipeline shell length fixing and groove cutting device according to claim 2, characterized in that: An electromagnet (364) is provided on the push ring (351). The electromagnet (364) is used to attract one end of the blowing rod (34) located in the through groove (32). After the air lock unit (36) is closed, the electromagnet (364) is powered on and started.

5. The GIS pipeline shell length fixing and groove cutting equipment according to claim 1, characterized in that: The cutting unit (2) comprises a rotating disk (21), the axis of the rotating disk (21) is parallel to the extension direction of the base (1), and the cutting blade (22) is arranged at the end of the rotating disk (21) so as to move along the radial direction of the rotating disk (21). A second pressure sensor is also arranged at the end of the rotating disk (21), and the second pressure sensor can be activated by pressing the end of the pipeline (4).

6. A GIS pipeline shell length fixing and groove cutting device according to claim 5, characterized in that: A plurality of rollers (23) are arranged on the rotating disk (21); the rollers (23) are arranged at the ends of the rotating disk (21) so as to rotate along the radial direction of the rotating disk (21); and the second pressure sensors are arranged on the side walls of the rollers (23).

7. The GIS pipeline shell length fixing and groove cutting equipment according to claim 1, characterized in that: A distance meter (7) is horizontally arranged on one side of one of the cutting units (2), with the distance measuring end of the distance meter (7) pointing horizontally toward the other cutting unit (2), and a corrugated sleeve (71) is sleeved on the periphery of the distance meter (7) along the extension direction of the base (1), with the two ends of the corrugated sleeve (71) respectively fixedly connected to the two cutting units (2).

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