Pipe fitting inner surface coping equipment

Abstract

The embodiment of the invention provides pipe fitting inner surface coping equipment, and relates to the technical field of pipe fitting production equipment. Compared with the prior art that the two ends of the pipe fitting are fed and polished at the same time, the pipe fitting inner surface polishing equipment provided by the invention independently positions and polishes the first end or the second end of the pipe fitting, the first end and the second end of the pipe fitting are independently machined, and the machining efficiency of the pipe fitting is greatly improved. The stability and independence of the pipe fitting machining process are guaranteed, the problem that in the prior art, two grinding devices recover movement or vibration of each other, so that vibration marks are generated on the inner surface of the pipe fitting is solved, the grinding quality of the inner surface of the pipe fitting is guaranteed, and the machining site is further saved.

Description

Technical Field

[0001] This invention relates to the field of pipe fitting production equipment technology, and more specifically, to a pipe fitting inner surface grinding equipment. Background Technology

[0002] Currently, during the rolling process of pipe fittings, the inner wall of the fittings often suffers from defects such as incomplete removal of the oxide layer and internal straight lines. However, in fields with strict inspection and usage requirements, such as high-pressure boilers and petroleum cracking pipes, the service life of seamless pipe fittings can be reduced or even pose safety hazards due to the accumulation of corrosive fluids inside the fittings or the weak corrosion resistance and strength at the defects on the inner wall of the fittings.

[0003] In existing technologies, minor internal surface defects on the inner wall of pipe fittings can be removed through manual grinding and machine grinding. Manual grinding is slow, results in poor wall thickness uniformity, and makes it difficult to guarantee the stability of pipe fitting quality, failing to meet the requirements of high-end applications. Machine grinding involves two grinding wheels simultaneously feeding axially from both ends of the pipe fitting and rotating at high speed to complete the grinding of the entire workpiece. However, this equipment occupies a large area, requires both grinding wheels to be on the same centerline, and when grinding simultaneously from both ends, the probability of the two grinding devices recovering from each other's motion or vibration is high, necessitating regular calibration of the grinding wheels. Summary of the Invention

[0004] The purpose of this invention is to provide a device for grinding the inner surface of pipe fittings, which can process the first end and the second end of the pipe fittings separately in stages, ensuring the stability and independence of the pipe fitting processing process and guaranteeing the grinding quality of the inner surface of the pipe fittings.

[0005] The embodiments of the present invention can be implemented as follows: This invention provides a device for grinding the inner surface of pipe fittings, including a device body, the device body having a first station and a second station, the first station and the second station being arranged sequentially along a first direction; Two grinding mechanisms are located on opposite sides of the equipment body. One mechanism is used to grind the pipes located at the first work station, and the other mechanism is used to grind the pipes located at the second work station.

[0006] In an optional embodiment, the grinding mechanism is moved along a first direction and grinds the inner surface of the pipe in steps; one of the grinding mechanisms grinds the inner surface of the first end of the pipe located at the first station; the other grinding mechanism grinds the remaining part of the inner surface of the pipe located at the second station.

[0007] In an optional embodiment, the grinding mechanism includes a grinding unit that is movable along a first direction and performs axial feeding grinding on the inner surface of the pipe; the grinding unit includes a grinding drive, a push rod and a grinding structure, the output end of the grinding drive is tractively connected to one end of the push rod, and the other end of the push rod is provided with the grinding structure.

[0008] In an optional embodiment, the equipment body has a first station, a second station, a first grinding station, and a second grinding station. The first grinding station and the second grinding station are used to set up grinding mechanisms. The first station and the second station are respectively located on two parallel straight lines arranged along a first direction. The first station and the first grinding station are sequentially arranged on one of the straight lines, and the second station and the second grinding station are sequentially arranged on the other straight line.

[0009] In an optional embodiment, the first workstation and the second workstation have a plurality of positioning units arranged along a first direction, the positioning units being used to place and position the pipe fittings.

[0010] In an optional embodiment, the positioning unit includes an upper clamping module and a lower positioning module, wherein the upper clamping module is movably disposed above the lower positioning module along a third direction.

[0011] In an optional embodiment, the lower positioning module includes a lower positioning bracket and at least two lower rollers, the at least two lower rollers being disposed on the lower positioning bracket along a first direction; the lower positioning bracket being movably disposed along a third direction.

[0012] In an optional embodiment, the upper clamping module includes an upper clamping bracket, at least two upper rollers, and a positioning drive. The at least two upper rollers are spaced apart along a first direction and rotatably mounted on the upper clamping bracket. The upper clamping bracket is connected to the output end of the positioning drive, and the positioning drive is used to drive the upper clamping bracket to be movable along a third direction.

[0013] In an optional embodiment, the equipment body further includes a first conveying roller conveyor and a second conveying roller conveyor arranged along a first direction, and used to place the pipe and position one end of the pipe.

[0014] In an optional implementation, a moving mechanism is also included, which is used to move the pipe located at the first station and / or the second station to the next station.

[0015] The beneficial effects of the pipe fitting inner surface grinding equipment provided in this embodiment of the invention include: Compared to the existing technology that simultaneously feeds and grinds both ends of the pipe fitting, this application grinds only the first or second end of the inner surface of the pipe fitting. By processing the first and second ends of the pipe fitting separately, the process independence of both ends of the pipe fitting is maintained, the processing stability is ensured, and the grinding quality and processing accuracy of the inner surface of the pipe fitting are improved, resulting in uniform pipe wall thickness. At the same time, it avoids the problem of vibration marks on the inner surface of the pipe fitting caused by the two grinding devices recovering each other's movement or vibration in the existing technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the pipe fitting inner surface grinding equipment provided in this embodiment; Figure 2 This is a partial structural diagram of the pipe fitting inner surface grinding equipment provided in this embodiment; Figure 3 This is a schematic diagram of the grinding mechanism provided in this embodiment; Figure 4 This is a front view of the pipe fitting inner surface grinding equipment provided in this embodiment; Figure 5 This is a schematic diagram of the grinding unit provided in this embodiment.

[0018] Icons: Y - First direction; X - Second direction; Z - Third direction; 10 - Pipe fitting inner surface grinding equipment; 11 - First station; 12 - First grinding station; 13 - Second station; 14 - Second grinding station; 20 - Pipe fitting; 21 - First end; 22 - Second end; 100-Grinding mechanism; 110-Grinding unit; 111-Grinding drive component; 112-Push rod; 113-Grinding structure; 114-Transmission component; 120-Base; 121-Moving slide rail; 130-Moving bracket; 140-First positioning bracket; 150-Second positioning bracket; 151-Positioning structure; 200-Positioning mechanism; 201-Positioning unit; 210-Upper clamping module; 211-Upper clamping bracket; 212-Upper roller; 213-Output shaft; 220-Lower positioning module; 221-Lower positioning bracket; 222-Lower roller ; 230-Fixed bracket; 231-Fixed beam; 300-Feeding and flipping mechanism; 310-Feeding drive component; 320-Drive shaft; 330-Feeding platform; 340-Baffle; 400-Unloading and flipping mechanism; 410-Unloading platform; 500-First conveyor roller conveyor; 510-First roller bracket; 520-First baffle; 600-Second conveyor roller conveyor; 610-Second roller bracket; 620-Second baffle; 700-Third conveyor roller conveyor; 710-Third roller bracket; 800-Moving mechanism; 810-Moving beam; 811-Support. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0025] The following describes in detail the overall structure, working principle, and technical effects of the pipe fitting inner surface grinding equipment 10 provided by the present invention through embodiments and in conjunction with the accompanying drawings.

[0026] Please refer to Figure 1 The pipe fitting inner surface grinding equipment 10 provided by the present invention is used to polish and grind the inner surfaces of both ends of the pipe fitting 20.

[0027] Of course, in other embodiments, the inner surface grinding device 10 can also be used to polish the outer surfaces of both ends of the pipe fitting 20 respectively. The grinding structure 113 on the push rod 112 can be replaced with the grinding structure 113 for grinding the outer surface of the pipe fitting 20.

[0028] Among them, pipe fitting 20 can be steel pipe, seamless steel pipe, etc.

[0029] Please refer to Figure 1 The present invention provides a pipe fitting inner surface grinding device 10 having a first direction Y, a second direction X and a third direction Z that are perpendicular to each other.

[0030] Please refer to Figure 1 The present invention provides a pipe fitting inner surface grinding device 10, comprising: a device body, the device body having a first station 11 and a second station 13, the first station 11 and the second station 13 being arranged sequentially along a first direction Y; Two grinding mechanisms 100 are located on opposite sides of the equipment body. One is used to grind the pipe fitting 20 located at the first station 11, and the other is used to grind the pipe fitting 20 located at the second station 13.

[0031] It is understandable that by setting two grinding mechanisms 100 located on opposite sides of the equipment body, one grinding mechanism 100 first grinds the inner surface of the first end 21 of the pipe fitting 20, and the other grinding mechanism 100 then grinds the inner surface of the second end 22 of the pipe fitting 20, the overall grinding of the inner surface of the pipe fitting 20 can be completed.

[0032] Therefore, compared with the prior art of simultaneously axially feeding and grinding the inner surface of both ends of the pipe fitting 20, this application grinds the first end 21 or the second end 22 of the pipe fitting 20 separately. By processing the first end 21 and the second end 22 of the pipe fitting 20 separately, the process independence of both ends of the pipe fitting 20 is maintained, the processing stability is ensured, and the grinding quality and processing accuracy of the inner surface of the pipe fitting 20 are improved, so that the wall thickness of the pipe fitting 20 is uniform. At the same time, it avoids the problem of vibration marks on the inner surface of the pipe fitting 20 caused by the two grinding devices recovering each other's movement or vibration in the prior art.

[0033] In this embodiment, the pipe fitting inner surface grinding device 10 includes a device body.

[0034] In this embodiment, the equipment body has a first station 11, a second station 13, a first grinding station 12, and a second grinding station 14. The first grinding station 12 and the second grinding station 14 are used to set up the grinding mechanism 100. The first station 11 and the second station 13 are respectively located on two parallel straight lines arranged along the first direction Y. The first station 11 and the first grinding station 12 are arranged sequentially on one of the straight lines, and the second station 13 and the second grinding station 14 are arranged sequentially on the other straight line.

[0035] Specifically, the equipment body has a first station 11, a first grinding station 12, a second station 13, and a second grinding station 14. The first grinding station 12 and the first station 11 are arranged sequentially along the first direction Y, and the second station 13 and the second grinding station 14 are arranged sequentially along the first direction Y. The first station 11 and the second station 13 are spaced apart along the second direction X. The first grinding station 12 and the second grinding station 14 are located on opposite sides of the equipment body. Grinding mechanisms 100 are provided on the first grinding station 12 and the second grinding station 14. The grinding mechanisms 100 located at the first grinding station 12 and the second grinding station 14 grind the inner surface of the pipe fitting 20 in steps.

[0036] Understandably, the moving mechanism 800 moves the pipe fitting 20 to the first station 11 and grinds the inner surface of the first end 21 of the pipe fitting 20 at the first grinding station 12; the moving mechanism 800 moves the pipe fitting 20 on the first station 11 to the positioning mechanism 200 on the second station 13; and grinds the inner surface of the second end 22 of the pipe fitting 20 at the second grinding station 14, thus completing the grinding of the inner surfaces of both ends of the pipe fitting 20 in steps.

[0037] In this embodiment, please refer to Figure 1The first station 11 and the second station 13 have multiple positioning units 201 arranged along the first direction Y. The positioning units 201 are used to place and position the pipe fitting 20. Specifically, the equipment body includes a positioning mechanism 200. The first station 11 and the second station 13 are used to set up the positioning mechanism 200 to keep the pipe fitting 20 horizontally arranged along the first direction Y. The positioning mechanism 200 includes multiple positioning units 201 arranged at intervals along the first direction Y.

[0038] It is understandable that both the first station 11 and the second station 13 are equipped with positioning mechanisms 200. The moving mechanism 800 moves the pipe 20 onto the positioning mechanism 200 of the first station 11, and the grinding mechanism 100 on the first grinding station 12 grinds the inner surface of the first end 21 of the pipe 20; the moving mechanism 800 moves the pipe 20 on the first station 11 onto the positioning mechanism 200 of the second station 13, and the grinding mechanism 100 on the second grinding station 14 grinds the inner surface of the second end 22 of the pipe 20, thus completing the grinding of the inner surfaces of both ends of the pipe 20.

[0039] It should be noted that by setting up the equipment body with the first station 11 and the second station 13, the first grinding station 12 and the second grinding station 14 can operate on two steel pipes at the same time, which improves production efficiency and saves processing space. At the same time, by setting up the moving mechanism 800 and the equipment body, the automatic feeding, station switching and grinding of the pipe fittings 20 can also be realized, with a high degree of automation.

[0040] In this embodiment, please refer to Figure 4 and Figure 5 The positioning unit 201 includes an upper clamping module 210 and a lower positioning module 220. The upper clamping module 210 is movably disposed above the lower positioning module 220 along the third direction Z. The lower positioning module 220 is used to position the pipe fitting 20, and the upper clamping module 210 is used to clamp the pipe fitting 20 located on the lower positioning module 220.

[0041] Understandably, multiple lower positioning modules 220 spaced apart along the first direction Y are used to position the pipe fitting 20, ensuring that the pipe fitting 20 maintains a horizontal centerline along the first direction Y during the grinding process, preventing excessive grinding distance and thus avoiding wall deviation defects in the pipe fitting 20. Furthermore, multiple upper clamping modules 210 spaced apart along the first direction Y cooperate with the lower positioning modules 220 to clamp the pipe fitting 20, preventing it from shifting along the push rod 112 during the grinding process and causing wall deviation.

[0042] In this embodiment, please refer to Figure 5 The lower positioning module 220 includes a lower positioning bracket 221 and at least two lower rollers 222. The at least two lower rollers 222 are spaced apart along the first direction Y and rotatably mounted on the lower positioning bracket 221.

[0043] The lower roller is mounted on the lower support, which is then fixed to the lower positioning support 221.

[0044] Alternatively, please refer to Figure 4 and Figure 5 The number of lower rollers 222 can be two, in which case the two lower rollers 222 are arranged at intervals along the first direction Y on the lower support; the number of lower rollers 222 can be four, in which case two of the lower rollers 222 are arranged in a row and at intervals along the first direction Y on the lower support, and the other two lower rollers 222 are arranged in a row and at intervals along the first direction Y on the lower support.

[0045] Furthermore, the lower positioning bracket 221 is movable along the third direction Z so that the center line of the pipe fitting 20 is aligned with the center line of the grinding mechanism 100.

[0046] Understandably, the lower positioning module 220, including at least two lower rollers 222, can position the pipe fitting 20 and adapt to pipe fittings 20 with different outer diameters. Furthermore, when it is necessary to grind pipe fittings 20 with different outer diameters, the lower positioning bracket 221 can drive the pipe fitting 20 to move horizontally up and down along the third direction Z to ensure that the center line of the pipe fitting 20 is aligned with the center line of the grinding mechanism 100, thereby avoiding the pipe fitting 20 from having an off-center wall.

[0047] In this embodiment, please refer to Figure 4 and Figure 5 The upper clamping module 210 includes an upper clamping bracket 211, at least two upper rollers 212 and a positioning drive. The at least two upper rollers 212 are spaced apart along the first direction Y and rotatably mounted on the upper clamping bracket 211. The upper clamping bracket 211 is connected to the output end of the positioning drive. The positioning drive is used to drive the upper clamping bracket 211 to be movable along the third direction Z.

[0048] Alternatively, the positioning drive component can be a hydraulic cylinder, a motor, or the like.

[0049] Understandably, the upper clamping module 210, which includes at least two upper rollers 212, can, on the one hand, cooperate with the lower positioning module 220 to clamp the pipe 20 located on the lower positioning module 220, thereby preventing the pipe 20 from shifting due to the action of the push rod 112 during the grinding process, thus causing the wall deviation phenomenon. On the other hand, it can also adapt to various pipes 20 with different outer diameters, and adjust up and down according to the outer diameter of the pipe 20 to be ground, thereby ensuring that the center line of the pipe 20 is aligned with the center line of the grinding mechanism 100, and avoiding the pipe 20 from having a wall deviation phenomenon.

[0050] In this embodiment, please refer to Figure 4 and Figure 5The positioning structure 151 also includes a fixed bracket 230, which is mounted above the equipment body. Two fixed beams 231 are arranged along the first station 11 and the second station 13 on the fixed bracket 230. Both fixed beams 231 are arranged along the first direction Y and are used to fix the upper driving component. The output end of the positioning driving component has two output shafts 213 located on both sides of the fixed beams 231. The two output shafts 213 are fixed to the upper clamping bracket 211, so the positioning driving component horizontally drives the upper clamping bracket 211 to move along the third direction Z through the two output shafts 213.

[0051] In this embodiment, the pipe fitting inner surface grinding equipment 10 includes two grinding mechanisms 100.

[0052] In this embodiment, please refer to Figure 1 The first grinding station 12 and the second grinding station 14 are each equipped with two grinding mechanisms 100 that grind the inner surface of the pipe fitting 20 in steps; one grinding mechanism 100 grinds the inner surface of the first end 21 of the pipe fitting 20 located at the first station 11; the other grinding mechanism 100 grinds the remaining part of the inner surface of the pipe fitting 20 located at the second station 13.

[0053] Understandably, by processing the first end 21 and the second end 22 of the pipe fitting 20 separately in stages, the process independence of the two ends of the pipe fitting 20 is maintained, and the stability of processing the pipe fitting 20 is ensured. In this embodiment, please refer to Figure 1 and Figure 3 The first grinding station 12 and the second grinding station 14 are equipped with a grinding mechanism 100, which is used to perform axial feeding grinding on the inner surface of the pipe fitting 20 along the first direction Y.

[0054] In this embodiment, please refer to Figure 1 The grinding mechanism 100 located at the first grinding station 12 moves along the first direction Y and is used to grind the inner surface of the first end 21 of the pipe fitting 20 located at the first station 11; the grinding mechanism 100 located at the second grinding station 14 moves along the first direction Y and is used to grind the inner surface of the second end 22 of the pipe fitting 20 located at the second station 13.

[0055] It is understandable that the first end 21 of the pipe fitting 20 is half the length of the pipe fitting 20, and the second end 22 of the pipe fitting 20 is the other half the length of the pipe fitting 20, so as to achieve overall grinding of the inner surface of the pipe fitting 20; at the same time, it can ensure that the grinding quality of the inner surface of the first end 21 of the pipe fitting 20 and the grinding quality of the inner surface of the second end 22 of the pipe fitting 20 are consistent, and at the same time, it can ensure a smooth transition at the connection between the inner surface of the first end 21 and the inner surface of the second end 22 of the pipe fitting 20.

[0056] In this embodiment, please refer to Figure 3 The grinding mechanism 100 includes a grinding unit 110 that is movably arranged along the first direction Y and performs axial feeding grinding on the inner surface of the pipe 20. The grinding unit 110 includes a grinding drive 111, a push rod 112 and a grinding structure 113 arranged along the first direction Y. The output end of the grinding drive 111 is connected to one end of the push rod 112, and the other end of the push rod 112 is provided with the grinding structure 113.

[0057] Specifically, the grinding drive component 111 includes a grinding motor and a transmission component 114. The output end of the grinding motor is connected to one end of the push rod 112 via the transmission component 114. Optionally, the transmission component 114 is a belt, which is then sleeved on the output end of the grinding motor and the push rod 112.

[0058] Optionally, the grinding structure 113 can be a grinding wheel, flap wheel, or other structure mounted on the push rod 112 to grind the inner surface of the pipe fitting 20. The grinding drive 111 drives the push rod 112 to rotate, which in turn drives the grinding structure 113 to rotate, thus grinding the inner surface of the pipe fitting 20.

[0059] In this embodiment, the grinding mechanism 100 further includes a base 120 and a movable bracket 130. The base 120 is provided with a movable slide rail 121 arranged along the first direction Y. The movable bracket 130 is slidably arranged on the movable slide rail 121. The grinding drive component 111 is arranged on the movable bracket 130. The movable bracket 130 is provided with a first positioning bracket 140. The base 120 is provided with a second positioning bracket 150 on the side close to the device body. The second positioning bracket 150 is provided with a positioning structure 151 for preventing the push rod 112 from deviating. One end of the push rod 112 is rotatably connected to the first positioning bracket 140, and the other end of the push rod 112 is threadedly connected to the positioning structure 151.

[0060] The first positioning bracket 140 is provided with a bearing component, and the push rod 112 passes through the bearing component to realize the rotational connection between the push rod 112 and the first positioning bracket 140.

[0061] Optionally, the positioning structure 151 has an internal thread, while the push rod 112 is a lead screw with an external thread, thereby achieving a threaded connection between the positioning structure 151 and the push rod 112. When the grinding drive 111 drives the push rod 112 to rotate, because the positioning structure 151 and the push rod 112 are threadedly connected, the positioning structure 151 forces the push rod 112 to move forward or backward along the first direction Y. Simultaneously, the push rod 112 drives the entire movable support 130 to move forward or backward along the movable slide rail 121, thereby achieving the feeding and retraction of the push rod 112.

[0062] It is understandable that when the pipe fitting 20 is in the first grinding station 12, when the push rod 112 in the first grinding station 12 is fed to the middle position of the pipe fitting 20, the first end 21 of the pipe fitting 20 is ground. When the pipe fitting 20 is moved from the first grinding station 12 to the second grinding station 14 by the moving mechanism 800, when the push rod 112 in the second grinding station 14 is fed to the middle position of the pipe fitting 20, the second end 22 of the pipe fitting 20 is ground. This ensures a smooth transition at the connection between the inner surface of the first end 21 and the inner surface of the second end 22 of the pipe fitting 20.

[0063] In this embodiment, please refer to Figure 1 and Figure 2 The equipment body also includes a feeding and flipping pipe mechanism 300, which is located on the side of the equipment body near the first station 11. The feeding and flipping pipe mechanism 300 is used to feed the pipe fittings 20 at intervals or continuously.

[0064] In this embodiment, please refer to Figure 1 and Figure 2 The loading and turning mechanism 300 includes a loading drive 310, a drive shaft 320, and a plurality of loading platforms 330 spaced apart along the first direction Y. The loading platforms 330 are provided with ramps, and each side of the loading platform 330 is provided with a baffle 340. The drive shaft 320 is arranged along the first direction Y. The plurality of baffles 340 are connected to the drive shaft 320 in a transmission manner. The loading drive 310 is connected to one end of the drive shaft 320 in a transmission manner. The loading drive 310 is used to drive the drive shaft 320 to rotate so that the plurality of baffles 340 move synchronously along the third direction Z.

[0065] Optionally, the feeding drive component 310 can be a motor, etc.

[0066] It is understandable that the feeding drive unit 310 drives the drive shaft 320 to rotate, and the drive shaft 320 simultaneously drives multiple baffles 340 to move synchronously along the third direction Z. When feeding is required, the multiple baffles 340 are driven to move downwards along the third direction Z, allowing the pipe fitting 20 to roll downwards onto the first conveyor roller 500 under its own gravity for preparation. When the feeding rhythm needs to be controlled, the multiple baffles 340 are driven to move upwards along the third direction Z, blocking the pipe fitting 20. Therefore, by setting multiple feeding platforms 330 spaced apart along the first direction Y, the conveying of the pipe fitting 20 is achieved; by setting the feeding drive unit 310, drive shaft 320, and baffles 340, the pipe fitting 20 can be blocked, and the feeding rhythm of the pipe fitting 20 can be controlled.

[0067] In this embodiment, please refer to Figure 1 and Figure 2The equipment body also includes a feeding and flipping pipe mechanism 400, which is located on the side of the equipment body near the second station 13. The feeding and flipping pipe mechanism 400 is used to place the pipe fittings 20.

[0068] Optionally, a plurality of unloading platforms 410 are spaced apart along the first direction Y. The unloading platforms 410 are provided with ramps so that the plurality of pipe fittings 20 can be arranged sequentially on the ramps under the action of gravity.

[0069] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 The equipment body also includes a first conveyor roller 500, which is arranged along the first direction Y and used to place the pipe fitting 20. The first conveyor roller 500 is located between the loading and turning mechanism 300 and the first station 11. A first baffle 520 is provided at one end of the first conveyor roller 500 along the first direction Y. The first baffle 520 and the first grinding station 12 are located on the same side of the equipment body and are used to position the first end 21 of the pipe fitting 20.

[0070] Optionally, the first conveyor roller 500 includes a plurality of first roller supports 510 spaced apart along the first direction Y, and each first roller support 510 is provided with two rollers.

[0071] Understandably, when the pipe fitting 20 is fed onto the first conveyor roller 500, the pipe fitting 20 is pushed to move along the first direction Y on the first conveyor roller 500 until the first end 21 of the pipe fitting 20 abuts against the first baffle 520, at which point the pipe fitting 20 is conveyed into position. Further, the moving assembly can move the positioned pipe fitting 20 to the first workstation 11 for grinding the inner surface of the first end 21 of the pipe fitting 20. This unifies the processing starting point and ensures the processing accuracy of the inner surface of the first end 21 of the pipe fitting 20.

[0072] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 The equipment body also includes a second conveyor roller 600. The first conveyor roller 500 is arranged along the first direction Y and is used to place the pipe fitting 20. The second conveyor roller 600 is located between the first station 11 and the second station 13. A second baffle 620 is provided at one end of the second conveyor roller 600 along the first direction Y. The second baffle 620 and the second grinding station 14 are located on the same side of the equipment body and are used to position the second end 22 of the pipe fitting 20.

[0073] Optionally, the second conveyor roller 600 includes a plurality of second roller supports 610 spaced apart along the first direction Y, and each second roller support 610 is provided with two rollers.

[0074] Understandably, after the first end 21 of the pipe fitting 20 is processed, the moving mechanism 800 moves the pipe fitting 20 onto the second conveyor roller 600, pushing the pipe fitting 20 to move along the first direction Y on the second conveyor roller 600 until the second end 22 of the pipe fitting 20 abuts against the second baffle 620, at which point the pipe fitting 20 is conveyed into position. Further, the moving assembly can move the positioned pipe fitting 20 to the second station 13 for grinding the inner surface of the second end 22 of the pipe fitting 20. This unifies the processing starting point and ensures the processing accuracy of the inner surface of the second end 22 of the pipe fitting 20.

[0075] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 The equipment body also includes a third conveyor roller 700, a first conveyor roller 500 arranged along the first direction Y and used to place the pipe fitting 20, a second conveyor roller 600 located between the first station 11 and the second station 13, and a third conveyor roller 700 located between the second station 13 and the unloading and turning mechanism 400.

[0076] Optionally, the third conveyor roller conveyor 700 includes a plurality of third roller supports 710 spaced apart along the first direction Y, and each third roller support 710 is provided with two rollers.

[0077] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 The pipe fitting inner surface grinding equipment 10 includes a moving mechanism 800.

[0078] In this embodiment, the moving mechanism 800 is used to move the pipe fitting 20 located at the first station 11 and / or the second station 13 to the next station for continuous conveying of the pipe fitting 20.

[0079] The moving mechanism 800 is used to move the pipe fitting 20. For example, it can move the pipe fitting 20 on the first station 11 to the second station 13, or move the pipe fitting 20 to either the first station 11 or the second station 13, or move the pipe fitting 20 to both the first station 11 and the second station 13 at the same time. Of course, it can also move the pipe fitting 20 on the loading and turning mechanism 300 to the first conveying roller 500 for positioning, or move the pipe fitting 20 on the first conveying roller 500 to the first station 11, or move the pipe fitting 20 on the first station 11 to the second conveying roller 600 for positioning.

[0080] In this embodiment, the moving mechanism 800 includes a plurality of moving beams 810. A moving beam 810 is provided between two adjacent positioning units 201. The moving beams 810 are movable along the second direction X and the third direction Z. At least two supports 811 are provided on the moving beams 810, which are spaced apart along the second direction X. The supports 811 are provided with slots. The supports 811 and the positioning units 201 are spaced apart along the first direction Y.

[0081] Among them, the support 811 is equipped with a V-shaped groove, which can be adapted to various sizes of pipe fittings 20.

[0082] The position of the movable beam 810 is generally lower than the height of other structures to avoid interference between components.

[0083] In this embodiment, the number of supports 811 on the moving beam 810 includes five. The first support 811 is located between the loading and turning mechanism 300 and the first conveying roller conveyor 500; the second support 811 is located between the first conveying roller conveyor 500 and the first station 11; the third support 811 is located between the first station 11 and the second conveying roller conveyor 600; the fourth support 811 is located between the second conveying roller conveyor 600 and the second station 13; and the fifth support 811 is located between the second station 13 and the unloading and turning mechanism 400. Of course, in some optional embodiments, the number of supports 811 on the moving beam 810 may also include one, two, three, four, six, etc.

[0084] Understandably, by setting multiple supports 811 on the moving beam 810, the pipe fitting 20 can be moved simultaneously, thus improving production efficiency.

[0085] The working principle and process of the pipe fitting inner surface grinding equipment 10 provided in this embodiment of the invention are as follows: The first step involves hoisting the pipe fitting 20 to be repaired onto the loading and turning mechanism 300. Multiple baffles 340 are then driven to move downwards along the third direction Z. Under its own weight, the pipe fitting 20 rolls downwards onto the first support 811 of the moving mechanism 800. The moving mechanism 800 then moves along the second direction X and the third direction Z, moving the pipe fitting 20 onto the first conveyor roller conveyor 500. Simultaneously, the pipe fitting 20 is pushed to move along the first direction Y on the first conveyor roller conveyor 500 until the first end 21 of the pipe fitting 20 abuts against the first baffle 520. At this point, the pipe fitting 20 is in place, and the positioning of the first end 21 of the pipe fitting 20 is complete.

[0086] In the second step, the moving mechanism 800 moves the pipe 20 on the first conveying roller 500 to the lower positioning module 220 of the first station 11. The upper clamping module 210 moves downward along the third direction Z to cooperate with the lower positioning module 220 to clamp the pipe 20 located on the lower positioning module 220. At the same time, the grinding mechanism 100 located at the first grinding station 12 works. When the push rod 112 located at the first grinding station 12 is fed to the middle position of the pipe 20, the first end 21 of the pipe 20 is ground.

[0087] In the third step, the moving mechanism 800 moves the pipe 20 on the lower positioning module 220 on the first station 11 to the second conveying roller 600, and pushes the pipe 20 so that the pipe 20 moves along the first direction Y on the second conveying roller 600 until the second end 22 of the pipe 20 abuts against the second baffle 620. Then the pipe 20 is delivered to the position and the positioning of the second end 22 of the pipe 20 is completed.

[0088] In the fourth step, the moving mechanism 800 moves the pipe 20 on the second conveyor roller 600 to the lower positioning module 220 of the second station 13. The upper clamping module 210 moves downward along the third direction Z, cooperating with the lower positioning module 220 to clamp the pipe 20 located on the lower positioning module 220. At the same time, the grinding mechanism 100 located at the second grinding station 14 operates. When the push rod 112 located at the second grinding station 14 is fed to the middle position of the pipe 20, the second end 22 of the pipe 20 is ground. At the same time, a smooth transition is achieved at the connection between the inner surface of the first end 21 and the inner surface of the second end 22 of the pipe 20.

[0089] Fifth step, the moving mechanism 800 moves the pipe 20 on the lower positioning module 220 on the second station 13 to the third conveying roller 700; further, the moving mechanism 800 moves the pipe 20 on the third conveying roller 700 to the unloading and flipping mechanism 400 for placement, waiting for subsequent processing.

[0090] In summary, the pipe fitting inner surface grinding equipment 10 provided in this embodiment of the invention, compared with the prior art which grinds both ends of the pipe fitting 20 simultaneously, grinds only the first end 21 or the second end 22 of the inner surface of the pipe fitting 20. By processing the first end 21 and the second end 22 of the pipe fitting 20 separately, the process independence of both ends of the pipe fitting 20 is maintained, the processing stability is ensured, and the grinding quality and processing accuracy of the inner surface of the pipe fitting 20 are improved, resulting in uniform wall thickness of the pipe fitting 20. At the same time, it avoids the problem of vibration marks on the inner surface of the pipe fitting 20 caused by the two grinding devices recovering each other's movement or vibration in the prior art.

[0091] Furthermore, by setting up a machine body with a first station 11 and a second station 13, the first grinding station 12 and the second grinding station 14 can operate on two steel pipes simultaneously, which improves production efficiency and saves processing space. At the same time, by setting up a moving mechanism 800 and a machine body, the automatic feeding, station switching and grinding of the pipe fittings 20 can be realized, with a high degree of automation.

[0092] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for grinding the inner surface of pipe fittings, characterized in that, Includes a device body, the device body having a first workstation (11) and a second workstation (13), the first workstation (11) and the second workstation (13) being arranged sequentially along a first direction (Y); Two grinding mechanisms (100) are located on opposite sides of the equipment body, one of which is used to grind the pipe fitting (20) located at the first station (11), and the other is used to grind the pipe fitting (20) located at the second station (13).

2. The pipe fitting inner surface grinding equipment according to claim 1, characterized in that, The grinding mechanism (100) is moved along the first direction (Y) and grinds the inner surface of the pipe fitting (20) step by step; one of the grinding mechanisms (100) grinds the inner surface of the first end (21) of the pipe fitting (20) located at the first station (11); the other grinding mechanism (100) grinds the remaining part of the inner surface of the pipe fitting (20) located at the second station (13).

3. The pipe fitting inner surface grinding equipment according to claim 1, characterized in that, The grinding mechanism (100) includes a grinding unit (110) that is movably arranged along a first direction (Y) and performs axial feeding grinding on the inner surface of the pipe (20); the grinding unit (110) includes a grinding drive (111), a push rod (112) and a grinding structure (113), the output end of the grinding drive (111) is connected to one end of the push rod (112) and the other end of the push rod (112) is provided with the grinding structure (113).

4. The pipe fitting inner surface grinding equipment according to claim 1, characterized in that, The equipment body has a first work station (11), a second work station (13), a first grinding work station (12), and a second grinding work station (14). The first grinding work station (12) and the second grinding work station (14) are used to set up a grinding mechanism (100). The first work station (11) and the second work station (13) are respectively located on two parallel straight lines set along a first direction (Y). The first work station (11) and the first grinding work station (12) are sequentially set on one of the straight lines, and the second work station (13) and the second grinding work station (14) are sequentially set on the other straight line.

5. The pipe fitting inner surface grinding equipment according to claim 1, characterized in that, The first workstation (11) and the second workstation (13) have multiple positioning units (201) arranged along the first direction (Y), and the positioning units (201) are used to place and position the pipe fittings (20).

6. The pipe fitting inner surface grinding equipment according to claim 5, characterized in that, The positioning unit (201) includes an upper clamping module (210) and a lower positioning module (220). The upper clamping module (210) is movably disposed above the lower positioning module (220) along a third direction (Z).

7. The pipe fitting inner surface grinding equipment according to claim 6, characterized in that, The lower positioning module (220) includes a lower positioning bracket (221) and at least two lower rollers (222). The at least two lower rollers (222) are disposed on the lower positioning bracket (221) along a first direction (Y). The lower positioning bracket (221) is movable along a third direction (Z).

8. The pipe fitting inner surface grinding equipment according to claim 6, characterized in that, The upper clamping module (210) includes an upper clamping bracket (211), at least two upper rollers (212), and a positioning drive. The at least two upper rollers (212) are spaced apart along a first direction (Y) and rotatably mounted on the upper clamping bracket (211). The upper clamping bracket (211) is connected to the output end of the positioning drive. The positioning drive is used to drive the upper clamping bracket (211) to be movable along a third direction (Z).

9. The pipe fitting inner surface grinding equipment according to claim 1, characterized in that, The equipment body also includes a first conveying roller (500) and a second conveying roller (600) arranged along a first direction (Y), and is used to place the pipe (20) and position one end of the pipe (20).

10. The pipe fitting inner surface grinding equipment according to claim 1, characterized in that, It also includes a moving mechanism (800) for moving the pipe fitting (20) located at the first station (11) and / or the second station (13) to the next station.

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