A processing device and method for cold-rolled precision seamless steel pipe

Abstract

The application discloses a kind of processing device and method of cold-rolled precision seamless steel tube, it is related to steel tube processing technical field, the application includes the top of cold-rolled assembly is provided with lubricating assembly and is driven to be connected to lubricating assembly, the output end of lubricating assembly is driven to the lubrication of the cold-rolled end of cold-rolled assembly, oil filtering circulation assembly is arranged between the inner wall of outer shell and the outer wall of cold-rolled assembly, in the process of moving of cold-rolled assembly, the piston end of oil filtering circulation assembly is moved, to collect the lubricating oil of the bottom end of oil filtering circulation assembly to the oil storage end of lubricating assembly, for oil filtering circulation.

Description

Technical Field

[0001] This invention relates to the field of steel pipe processing technology, specifically to a processing apparatus and method for cold-rolled precision seamless steel pipes. Background Technology

[0002] The processing equipment for cold-rolled precision seamless steel pipes is based on a periodic cold rolling mill or a Pilger mill, and is used to produce precision steel pipes.

[0003] In existing cold-rolled precision seamless steel pipe processing equipment, cooling oil is continuously sprayed during the rolling process to cool down and lubricate the rolls and pipes. At the same time, the rolling lubricating oil is directly dripped and recycled after continuous spraying. However, the existing equipment lacks a corresponding filtration and circulation device. The lack of filtration requires an additional filtration device to process the oil, which affects its efficiency and also makes it impossible to conserve the use of rolling lubricating oil.

[0004] Patent application number CN202610034365.9 discloses a seamless steel pipe processing device and processing method. Although the use of directional and accurate oil spraying can ensure that the finished seamless steel pipe is of good quality and saves lubricating oil, it does not treat the mixture of metal scraps and lubricating oil, and lacks a recycling structure for the recovery and reuse of lubricating oil.

[0005] To address the aforementioned problems, the inventors have proposed a processing apparatus and method for cold-rolled precision seamless steel pipes. Summary of the Invention

[0006] To address the problem of existing devices lacking lubricating oil filtration and circulation, the present invention aims to provide a processing apparatus and method for cold-rolled precision seamless steel pipes.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a processing device for cold-rolled precision seamless steel pipe, comprising an outer shell, a driving device and a cold rolling assembly disposed inside the outer shell, and two guide rails fixedly connected to the inner wall of the outer shell, wherein the driving device drives the cold rolling assembly, and the cold rolling assembly slides along the guide rails; The top of the cold rolling assembly is provided with a lubrication assembly and is driven to the output end of the lubrication assembly to lubricate the cold rolling end of the cold rolling assembly. An oil filtration and circulation assembly is provided between the inner wall of the outer casing and the outer wall of the cold rolling assembly. During the movement of the cold rolling assembly, the piston end of the oil filtration and circulation assembly is moved, thereby recovering the lubricating oil collected from the cold rolling assembly at the bottom of the oil filtration and circulation assembly to the oil storage end of the lubrication assembly for oil filtration and circulation.

[0008] Preferably, the cold-rolled assembly includes a sliding seat slidably connected to the guide rail and two cold-rolling wheels rotatably connected to the sliding seat; A first gear is connected to the shaft of the cold rolling wheel, and a rack is meshed on the outer wall of the first gear. The two ends of the rack are fixedly connected to the inner wall of the outer casing. The bottom outer wall of the sliding seat is connected to the transmission end of the drive device. The first gear drives the lubrication assembly.

[0009] Preferably, the lubrication assembly includes a second gear for meshing and driving the first gear and an oil tank for storing lubricating oil, one side of which is connected to an oil filtration and circulation assembly; The oil tank is fixedly connected to the top outer wall of the sliding seat, and the second gear is rotatably connected between the sliding seat and the oil tank; The outer wall of the second gear is rotatably connected to a connecting pipe, which is fixedly connected to the top of the sliding seat. The oil tank is connected to the connecting pipe through the second gear, and the output end of the connecting pipe faces the cold rolling wheel. The second gear is connected to an impeller, and an arc-shaped plate is fixedly connected to the inner wall of the oil tank. A crescent plate is provided on the side of the oil tank near the second gear.

[0010] Preferably, the arc-shaped plate is located at the top of the impeller, the bottom of the oil tank is provided with a cylindrical groove, the two ends of the arc-shaped plate form notches with the inner wall of the oil tank, and the oil inlet of the crescent plate is located at the top of the crescent plate.

[0011] Preferably, a scraper is connected to the output end of the connecting pipe, one end of the scraper is in contact with the outer wall of the cold rolling wheel, and the scraper is provided with a plurality of oil delivery holes; A dust removal assembly is provided between the outer casing and the sliding seat, and the adsorption end of the dust removal assembly is located on the outer wall of the scraper.

[0012] Preferably, the oil filtration and circulation assembly includes a piston oil pump and a first oil pipe for communicating with the oil tank; One end of the piston oil pump is connected to the inner wall of the outer casing, and the piston rod end of the piston oil pump is connected to the outer wall of the sliding seat. One end of the first oil pipe is connected to the piston oil pump, and a second oil pipe is connected to the outer wall of the piston oil pump. The bottom end of the second oil pipe is connected to the oil pan. One-way valves are respectively installed on the first oil pipe and the second oil pipe.

[0013] Preferably, a filter screen is snapped onto the top port of the oil pan, and the filter screen faces the cold rolling wheel.

[0014] Preferably, the chip removal assembly includes a piston air pump and an adsorption plate, one end of the piston air pump is connected to the inner wall of the outer casing, and the piston rod end of the piston air pump is connected to the outer wall of the sliding seat. An extendable vent pipe is connected to the outer wall of the piston air pump. One end of the vent pipe is connected to a magnetic conical shell. The magnetic conical shell is connected to the outer wall of the sliding seat. One end of the adsorption plate is connected to the outer wall of the magnetic conical shell, and the other end of the adsorption plate is disposed on the outer wall of the scraper.

[0015] Preferably, a first rubber cone is provided at the bottom of the magnetic conical shell, a second rubber cone is provided inside the magnetic conical shell through the adsorption plate, and a baffle hopper is provided on the inner wall of the top of the magnetic conical shell.

[0016] A method using a processing apparatus for cold-rolled precision seamless steel pipes includes the following features: Step 1: The drive unit drives the sliding seat and cold rolling wheel to move back and forth on the guide rail to cold roll the steel pipe. Step two: During the reciprocating motion of the cold rolling assembly, the lubrication assembly is driven to run synchronously, outputting lubricating oil to the outer wall of the steel pipe; Step 3: Simultaneously, the oil filtration and circulation assembly recycles and filters the lubricating oil. Step four: The chip removal component operates synchronously, cleaning and adsorbing impurities and iron filings on the outer wall of the cold rolling wheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The sliding seat reciprocating push-pull piston oil pump of the present invention completes the collection of oily waste residue and oil return circulation. The top of the oil pan is equipped with a filter screen to intercept iron filings, filter oil impurities, and recover lubricating oil for recycling, which greatly reduces the frequency of lubricating oil filling and material loss, thereby improving the efficiency of lubricating oil use.

[0018] 2. This invention features a scraper that fits snugly against the cold rolling wheel, simultaneously scraping away the oil film and iron filings on the wheel. A piston-driven air pump then applies negative pressure to the adsorption plate to suck up the slag. The magnetic conical shell adsorbs the metal filings, and the slag-gas separation is achieved through the unidirectional opening and closing of the rubber cone. Metal fragments are uniformly retained inside the conical shell, thereby reducing the metal filings content inside the lubricating oil during lubricant recovery and further improving the efficiency of lubricant use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the outer casing of the present invention.

[0022] Figure 3 A structural schematic diagram of an embodiment of the present invention Figure 1 .

[0023] Figure 4 A structural schematic diagram of an embodiment of the present invention Figure 2 .

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at point A in the middle.

[0025] Figure 6 This is a schematic diagram of the bottom structure of the fuel tank of the present invention.

[0026] Figure 7 This is a schematic diagram of the crescent-shaped plate structure of the present invention.

[0027] Figure 8 This is a schematic diagram of the scraper structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the chip removal component of the present invention.

[0029] Figure 10 This is a schematic diagram of the oil filtration and circulation assembly of the present invention.

[0030] Figure 11 This is a schematic diagram of the cold-rolled assembly of the present invention.

[0031] Figure 12 This is a side view of the cold-rolled component of the present invention.

[0032] In the diagram: 1. Drive unit; 2. Outer casing; 3. Cold rolling assembly; 31. Sliding seat; 32. Rack; 33. First gear; 34. Cold rolling wheel; 4. Lubrication assembly; 41. Oil tank; 410. Crescent plate; 42. Arc plate; 43. Impeller; 44. Second gear; 45. Connecting pipe; 46. Scraper; 5. Chip removal assembly; 51. Magnetic conical shell; 510. First rubber cone; 52. Piston air pump; 53. Vent pipe; 54. Second rubber cone; 55. Adsorption plate; 56. Bucket; 6. Guide rail; 7. Oil filtration and circulation assembly; 71. Piston oil pump; 72. First oil pipe; 73. Filter screen; 74. Second oil pipe; 75. Oil pan. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1 like Figure 1 - Figure 12 As shown, the present invention provides a processing device for cold-rolled precision seamless steel pipe, including an outer shell 2, a driving device 1 and a cold rolling assembly 3 disposed inside the outer shell 2, and two guide rails 6 fixedly connected to the inner wall of the outer shell 2. The driving device 1 drives the cold rolling assembly 3, and the cold rolling assembly 3 slides along the guide rails 6. A lubrication assembly 4 is provided on the top of the cold rolling assembly 3 and is driven to drive the output end of the lubrication assembly 4 to lubricate the cold rolling end of the cold rolling assembly 3. An oil filtration and circulation assembly 7 is provided between the inner wall of the outer casing 2 and the outer wall of the cold rolling assembly 3. During the movement of the cold rolling assembly 3, the piston end of the oil filtration and circulation assembly 7 is moved, thereby recovering the lubricating oil collected by the bottom end of the oil filtration and circulation assembly 7 from the cold rolling assembly 3 to the oil storage end of the lubrication assembly 4 for oil filtration and circulation.

[0035] Further settings for implementation one; Combination Figure 4 , Figure 11 and Figure 12 As shown, the cold-rolled assembly 3 includes a sliding seat 31 slidably connected to the guide rail 6 and two cold-rolling wheels 34 rotatably connected to the sliding seat 31; A first gear 33 is connected to the shaft of the cold rolling wheel 34. A rack 32 is meshed on the outer wall of the first gear 33. The two ends of the rack 32 are fixedly connected to the inner wall of the outer cover 2. The bottom outer wall of the sliding seat 31 is connected to the transmission end of the drive device 1. The first gear 33 drives the lubrication assembly 4. The purpose of this setup is to combine Figure 2 and Figure 3 The drive device 1 adopts the existing drive product settings, which belongs to the prior art and will not be described in detail. The drive device 1 drives the sliding seat 31 to reciprocate and slide on the two guide rails 6 through the transmission end. During the movement, the first gear 33 meshes with the rack 32, thereby driving the two cold rolling wheels 34 to rotate in opposite directions, one counterclockwise and the other clockwise, thereby cold rolling the steel pipe. This cold rolling method belongs to the prior art, including but not limited to this one.

[0036] Further settings; Combination Figure 4 - Figure 8 As shown, the lubrication assembly 4 includes a second gear 44 for meshing and driving the first gear 33 and an oil tank 41 for storing lubricating oil. One side of the oil tank 41 is connected to the oil filter circulation assembly 7. The oil tank 41 is fixedly connected to the top outer wall of the sliding seat 31, and the second gear 44 is rotatably connected between the sliding seat 31 and the oil tank 41. The outer wall of the second gear 44 is rotatably connected to a connecting pipe 45, which is fixedly connected to the top of the sliding seat 31. The oil tank 41 is connected to the connecting pipe 45 through the second gear 44, and the output end of the connecting pipe 45 faces the cold rolling wheel 34. The second gear 44 is connected to the impeller 43, and an arc plate 42 is fixedly connected to the inner wall of the oil tank 41. A crescent plate 410 is provided on the side of the oil tank 41 near the second gear 44. The purpose of this arrangement is that, during the rotation of the first gear 33, the second gear 44 meshes and drives the impeller 43 to rotate, thereby transporting the lubricating oil inside the oil tank 41. The oil is discharged through the top of the crescent plate 410, through the output end of the second gear 44 and the connecting pipe 45, and flows to the cold rolling wheel 34 to lubricate the surface of the cold rolling wheel 34 and the steel pipe. The connecting pipe 45 and the sliding seat 31 are fixedly set. While the connecting pipe 45 is connected to the second gear 44, the two rotate relative to each other.

[0037] Specifically, the arc-shaped plate 42 is located at the top of the impeller 43, the bottom of the oil tank 41 is provided with a cylindrical groove, the two ends of the arc-shaped plate 42 form notches with the inner wall of the oil tank 41, and the oil passage of the crescent plate 410 is located at the top of the crescent plate 410. The purpose of this setup is to combine Figure 5 As shown, under the influence of gravity and the inclination of the inner wall of the oil tank 41, the lubricating oil inside the oil tank 41 enters the impeller 43 through the gap between the arc plate 42 and the inner wall of the oil tank 41, and is transported by the rotation of the impeller 43. Combined Figure 7 As shown, the inner wall of the oil tank 41, in conjunction with the arc-shaped plate 42, forms a transport cavity on the top of the impeller 43. This transport cavity is not connected to the interior of the oil tank 41, but is connected to the oil inlet of the crescent plate 410, which is used to connect to the connecting pipe 45. For lubricating oil to enter the transport cavity, it needs to be transported by the rotation of the impeller 43. When the impeller 43 is not rotating, the lubricating oil will not enter the transport, thus allowing the impeller 43 to perform the function of switching the oil transport on and off.

[0038] More specifically, a scraper 46 is connected to the output end of the connecting pipe 45. One end of the scraper 46 is in contact with the outer wall of the cold rolling wheel 34. The scraper 46 is provided with several oil delivery holes. A dust removal component 5 is provided between the outer cover 2 and the sliding seat 31, and the suction end of the dust removal component 5 is provided on the outer wall of the scraper 46. The purpose of this setup is to combine Figure 4 , Figure 7 and Figure 8 As shown, the connecting pipe 45 and the sliding seat 31 are fixedly set so that the scraper 46 can slide stably on the outer wall of the cold rolling wheel 34, and stably scrape and clean the outer wall of the cold rolling wheel 34, reducing the accumulation of impurities and oil on the outer wall of the cold rolling wheel 34, which would affect the forming of the steel pipe.

[0039] The lubrication assembly 4 is specifically configured as two symmetrical sets, forming a symmetrical stable voltage output, and simultaneously used for oil supply and lubrication of the top and bottom ends of the two cold rolling rollers 34, combined with... Figure 8 .

[0040] Further settings for implementation one; Combination Figure 4 - Figure 10 As shown, the oil filtration and circulation assembly 7 includes a piston oil pump 71 and a first oil pipe 72 for communicating with the oil tank 41. One end of the piston oil pump 71 is connected to the inner wall of the outer casing 2, and the piston rod end of the piston oil pump 71 is connected to the outer wall of the sliding seat 31. One end of the first oil pipe 72 is connected to the piston oil pump 71. The outer wall of the piston oil pump 71 is connected to the second oil pipe 74. The bottom end of the second oil pipe 74 is connected to the oil pan 75. One-way valves are respectively installed on the first oil pipe 72 and the second oil pipe 74. The purpose of this setup is that the oil filtration and circulation assembly 7 is specifically set up with two sets for corresponding recovery with the two sets of oil tanks 41. The first oil pipe 72 and the second oil pipe 74 are specifically set up with telescopic hoses. Combination Figure 2 and Figure 3 As shown, with Figure 1 From the opposite perspective, the transmission end of drive device 1 is... Figure 2 and Figure 3 In the middle, it is driven by the right end of the sliding seat 31, so it can be known that in Figure 2 and Figure 3 In the process, the steel pipe enters from the left end of the sliding seat 31, is cold-rolled, and then exits from the right end of the sliding seat 31. For example in Figure 4 In the process, when the sliding seat 31 moves to the left, the cold rolling action is performed. The sliding seat 31 pushes the piston rod of the piston oil pump 71 to retract, combined with... Figure 10 At this time, the second oil pipe 74 and the one-way valve on the second oil pipe 74 are activated. Under the action of negative pressure, the lubricating oil recovered inside the oil pan 75 is drawn into the piston oil pump 71. When the sliding seat 31 moves to the right, the first oil pipe 72 and the one-way valve where the first oil pipe 72 is located are activated. Under the piston push of the piston oil pump 71, the oil is discharged into the oil tank 41 through the first oil pipe 72 and the one-way valve where the first oil pipe 72 is located, thereby realizing the recycling and circulation of lubricating oil after use, saving the consumption of lubricating oil.

[0041] Furthermore, a filter screen 73 is snapped onto the top port of the oil pan 75, with the filter screen 73 facing the cold rolling wheel 34. During this process, the oil pan 75 collects the lubricating oil flowing down the cold rolling wheel 34 and filters it through the filter screen 73. The filter screen 73 has a relatively small pore size, which is configured according to the usage requirements. Existing product models can be used, and will not be described in detail here.

[0042] In Embodiment 2, a dust removal component 5 is provided between the outer casing 2 and the sliding seat 31 in Embodiment 1; Combination Figure 3 , Figure 4 and Figure 9 As shown, the chip removal assembly 5 includes a piston air pump 52 and an adsorption plate 55. One end of the piston air pump 52 is connected to the inner wall of the outer casing 2, and the piston rod end of the piston air pump 52 is connected to the outer wall of the sliding seat 31. An extendable vent pipe 53 is connected to the outer wall of the piston air pump 52. One end of the vent pipe 53 is connected to a magnetic conical shell 51. The magnetic conical shell 51 is connected to the outer wall of the sliding seat 31. One end of the adsorption plate 55 is connected to the outer wall of the magnetic conical shell 51. The other end of the adsorption plate 55 is set on the outer wall of the scraper 46. The purpose of this design is to allow the piston rod end of the piston pump 52 to extend and retract during the movement of the sliding seat 31, in conjunction with... Figure 9 When the piston rod retracts to the left into the piston pump 52, it passes through one end of the vent pipe 53 and the top of the magnetic conical shell 51 to form a negative pressure. The airflow adsorption plate 55 flows into the interior of the magnetic conical shell 51, and the adsorption plate 55 picks up the iron filings on the outer wall of the scraper 46.

[0043] Specifically, a first rubber cone 510 is provided at the bottom of the magnetic conical shell 51, a second rubber cone 54 is provided inside the magnetic conical shell 51 through the adsorption plate 55, and a baffle hopper 56 is provided on the inner wall of the top of the magnetic conical shell 51. During the formation of negative pressure, the first rubber cone 510 contracts and closes, the second rubber cone 54 opens, and the airflow, along with the iron filings, enters the interior of the magnetic cone shell 51, where the iron filings are attracted by the magnetism inside the magnetic cone shell 51. When the piston air pump 52 performs the exhaust action, a positive pressure is formed inside the magnetic conical shell 51. The first rubber cone 510 opens to release the gas, and the second rubber cone 54 contracts and closes, leaving the iron filings inside the magnetic conical shell 51. Furthermore, during the gas discharge process, it is beneficial to blow and clean the outer wall of the steel pipe that it passes through. Then, the top of the magnetic conical shell 51 can be set as a threaded end cap, which facilitates subsequent cleaning and maintenance of the inside of the magnetic conical shell 51.

[0044] Example 3, based on Examples 1 and 2, describes a method for using a processing apparatus for cold-rolled precision seamless steel pipes, comprising the following features: Step 1: Driven by the transmission end of the drive device 1, the sliding seat 31 and the cold rolling wheel 34 are driven to move back and forth on the guide rail 6 to cold roll the passing steel pipe. Step 2: During the reciprocating motion of the cold rolling assembly 3, the lubrication assembly 4 is driven to operate synchronously, outputting lubricating oil to the outer wall of the steel pipe. Step 3: Simultaneously, the oil filtration and circulation assembly 7 recycles and filters the lubricating oil. Step four: Simultaneously operate the chip removal component 5, which cleans and adsorbs impurities and iron filings on the outer wall of the cold rolling wheel 34.

[0045] Working principle: The drive device 1 adopts the existing drive product settings, which are existing technologies and will not be described in detail. The drive device 1 drives the sliding seat 31 to reciprocate and slide on the two guide rails 6 through the transmission end. During the movement, the first gear 33 meshes with the rack 32, thereby driving the two cold rolling wheels 34 to rotate in opposite directions and cold roll the steel pipe that passes through. During this process, as the first gear 33 rotates, it meshes with the second gear 44, thereby driving the impeller 43 to rotate and transport the lubricating oil inside the oil tank 41. The oil is discharged through the top of the crescent plate 410, through the output end of the second gear 44 and the connecting pipe 45, and flows to the cold rolling wheel 34 to lubricate the surface of the cold rolling wheel 34 and the steel pipe. Under the influence of gravity and the inclination of the inner wall of the oil tank 41, the lubricating oil inside the oil tank 41 enters the impeller 43 through the gap between the arc plate 42 and the inner wall of the oil tank 41, and is transported by the rotation of the impeller 43. Combined Figure 7 As shown, the inner wall of the oil tank 41, in conjunction with the arc-shaped plate 42, forms a transport cavity on the top of the impeller 43. This transport cavity is not connected to the interior of the oil tank 41. The transport cavity is connected to the oil inlet of the crescent plate 410 and is used to connect to the connecting pipe 45. For lubricating oil to enter the transport cavity, it needs to be transported by the rotation of the impeller 43. When the impeller 43 is not rotating, the lubricating oil will not enter the transport, thus allowing the impeller 43 to perform the function of switching the oil transport on and off. The connecting pipe 45 and the sliding seat 31 are fixedly set so that the scraper 46 can slide stably on the outer wall of the cold rolling wheel 34, and stably scrape and clean the outer wall of the cold rolling wheel 34, reducing the accumulation of impurities and oil on the outer wall of the cold rolling wheel 34, which would affect the forming of the steel pipe. When the sliding seat 31 moves to the left, the cold rolling action is performed. The sliding seat 31 pushes the piston rod of the piston oil pump 71 to retract, thus engaging... Figure 10 At this time, the second oil pipe 74 and the one-way valve on the second oil pipe 74 are activated. Under the action of negative pressure, the lubricating oil recovered inside the oil pan 75 is drawn into the piston oil pump 71. When the sliding seat 31 moves to the right, the first oil pipe 72 and the one-way valve where the first oil pipe 72 is located are activated. Under the piston push of the piston oil pump 71, the oil is discharged into the oil tank 41 through the first oil pipe 72 and the one-way valve where the first oil pipe 72 is located, thereby realizing the recycling and circulation of lubricating oil after use, saving the consumption of lubricating oil.

[0046] All standard mechanical parts used in this invention can be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific mechanical connection methods for each part can also employ conventional methods such as bolts, rivets, and welding, which are already well-established in the prior art. For motors and other mechanical parts or various electronic components involved in circuitry involved in this invention, the related circuit connections adopt conventional circuit topologies and control principles in the prior art. The corresponding circuit models and operating logic are clearly understood and skillfully applied by those skilled in the art, and will not be detailed here.

[0047] The standard mechanical parts used in this invention, including but not limited to fasteners, gears, guide rails, and motors, are all commercially available standard products known in the relevant technical field and can be directly purchased from market channels. Irregularly shaped parts can be custom-made according to the structural descriptions in this specification and accompanying drawings.

[0048] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A processing device for cold-rolled precision seamless steel pipe, comprising an outer shell (2), a driving device (1) disposed inside the outer shell (2), and a cold rolling assembly (3), wherein two guide rails (6) are fixedly connected to the inner wall of the outer shell (2), the driving device (1) drives the cold rolling assembly (3), and the cold rolling assembly (3) slides along the guide rails (6); Its features are: The top of the cold rolling assembly (3) is provided with a lubrication assembly (4) and the lubrication assembly (4) is driven and connected to it, so that the output end of the lubrication assembly (4) lubricates the cold rolling end of the cold rolling assembly (3). An oil filtration and circulation assembly (7) is provided between the inner wall of the outer casing (2) and the outer wall of the cold rolling assembly (3). During the movement of the cold rolling assembly (3), the piston end of the oil filtration and circulation assembly (7) is moved, thereby recovering the lubricating oil collected by the bottom end of the oil filtration and circulation assembly (7) from the cold rolling assembly (3) to the oil storage end of the lubrication assembly (4) for oil filtration and circulation.

2. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 1, characterized in that, The cold-rolled assembly (3) includes a sliding seat (31) slidably connected to the guide rail (6) and two cold-rolled wheels (34) rotatably connected to the sliding seat (31). The first gear (33) is connected to the shaft of the cold rolling wheel (34). A rack (32) is meshed on the outer wall of the first gear (33). The two ends of the rack (32) are fixedly connected to the inner wall of the outer cover (2). The bottom outer wall of the sliding seat (31) is connected to the transmission end of the drive device (1). The first gear (33) drives the lubrication assembly (4).

3. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 2, characterized in that, The lubrication assembly (4) includes a second gear (44) for meshing and driving the first gear (33) and an oil tank (41) for storing lubricating oil. One side of the oil tank (41) is connected to the oil filtration and circulation assembly (7). The oil tank (41) is fixedly connected to the top outer wall of the sliding seat (31), and the second gear (44) is rotatably connected between the sliding seat (31) and the oil tank (41); The outer wall of the second gear (44) is rotatably connected to a connecting pipe (45), which is fixedly connected to the top of the sliding seat (31). The oil tank (41) is connected to the connecting pipe (45) through the second gear (44), and the output end of the connecting pipe (45) faces the cold rolling wheel (34). The second gear (44) is connected to an impeller (43), and an arc plate (42) is fixedly connected to the inner wall of the oil tank (41). A crescent plate (410) is provided on the side of the oil tank (41) near the second gear (44).

4. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 3, characterized in that, The arc plate (42) is located at the top of the impeller (43), the bottom of the oil tank (41) is provided with a cylindrical groove, the two ends of the arc plate (42) form a notch with the inner wall of the oil tank (41), and the oil inlet of the crescent plate (410) is located at the top of the crescent plate (410).

5. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 3, characterized in that, The output end of the connecting pipe (45) is connected to a scraper (46), one end of the scraper (46) is in contact with the outer wall of the cold rolling wheel (34), and the scraper (46) is provided with a number of oil delivery holes; A cleaning component (5) is provided between the outer cover (2) and the sliding seat (31), and the adsorption end of the cleaning component (5) is provided on the outer wall of the scraper (46).

6. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 3, characterized in that, The oil filtration and circulation assembly (7) includes a piston oil pump (71) and a first oil pipe (72) for communicating with the oil tank (41). One end of the piston oil pump (71) is connected to the inner wall of the outer casing (2), and the piston rod end of the piston oil pump (71) is connected to the outer wall of the sliding seat (31). One end of the first oil pipe (72) is connected to the piston oil pump (71), and the outer wall of the piston oil pump (71) is connected to the second oil pipe (74). The bottom end of the second oil pipe (74) is connected to the oil pan (75). One-way valves are respectively provided on the first oil pipe (72) and the second oil pipe (74).

7. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 6, characterized in that, The top port of the oil pan (75) is fitted with a filter screen (73), which faces the cold rolling wheel (34).

8. The processing apparatus for cold-rolled precision seamless steel pipes as described in any one of claims 5, characterized in that, The chip removal assembly (5) includes a piston air pump (52) and an adsorption plate (55). One end of the piston air pump (52) is connected to the inner wall of the outer casing (2), and the piston rod end of the piston air pump (52) is connected to the outer wall of the sliding seat (31). The piston air pump (52) has an extendable air pipe (53) connected to its outer wall. One end of the air pipe (53) is connected to a magnetic conical shell (51). The magnetic conical shell (51) is connected to the outer wall of the sliding seat (31). One end of the adsorption plate (55) is connected to the outer wall of the magnetic conical shell (51). The other end of the adsorption plate (55) is located on the outer wall of the scraper (46).

9. The processing apparatus for cold-rolled precision seamless steel pipes as described in claim 8, characterized in that, The bottom of the magnetic conical shell (51) is provided with a first rubber cone (510), the adsorption plate (55) is provided with a second rubber cone (54) inside the magnetic conical shell (51), and the top inner wall of the magnetic conical shell (51) is provided with a baffle hopper (56).

10. The method for using the processing apparatus for cold-rolled precision seamless steel pipes as described in any one of claims 1-9, characterized in that, Includes the following features: Step 1: Driven by the transmission end of the drive device (1), the sliding seat (31) and the cold rolling wheel (34) move back and forth on the guide rail (6) to cold roll the steel pipe that passes through. Step 2: During the reciprocating motion of the cold rolling assembly (3), the lubrication assembly (4) is driven to run synchronously, outputting lubricating oil to the outer wall of the steel pipe; Step 3: Simultaneously, the oil filtration and circulation assembly (7) recycles and filters the lubricating oil. Step 4: Simultaneously operate the chip removal component (5), which cleans and adsorbs impurities and iron filings on the outer wall of the cold rolling wheel (34).

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