Stainless steel pipe processing device

Abstract

The present invention relates to the technical field of stainless steel pipe processing devices, and discloses a stainless steel pipe processing device, comprising a casing, a grinding mechanism for grinding the stainless steel pipe provided in the casing, a positioning mechanism for positioning the grinding mechanism and simultaneously driving the grinding mechanism to rotate provided in the casing, an internal grinding component for grinding the inside of the stainless steel pipe provided in the casing, and a pipe feeding mechanism for feeding the stainless steel pipe provided on the casing. The beneficial effects of the present invention compared with the prior art are: the grinding and internal grinding components operate synchronously, greatly shortening the processing cycle, and being suitable for mass production; the positioning mechanism accurately positions and drives the grinding mechanism to ensure the grinding quality; the adjustment mechanism fine-tunes the position of the positioning gear, accurately controls the grinding pressure, and adapts to different pipe diameters; the pipe feeding mechanism automatically feeds the pipe and is linked with the adjustment mechanism to flexibly adjust the pipe feeding slide; the various mechanisms cooperate to realize the integration of pipe feeding and grinding.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel pipe processing devices, in particular to a stainless steel pipe processing device. Background Art

[0002] Stainless steel pipes are widely used in construction, chemical industry, food and other industries due to their corrosion resistance and high strength. With the development of the industry, higher requirements are placed on the quality and processing efficiency of stainless steel pipes. However, existing stainless steel pipe processing equipment has significant defects in multiple key dimensions and is difficult to meet industry needs.

[0003] In terms of processing efficiency and polishing quality, traditional equipment requires separate steps for outer and inner surface polishing, which greatly lengthens the processing cycle. The processing of a single medium-length stainless steel pipe takes more than one hour, seriously restricting production capacity. The pipe feeding mechanism and the polishing mechanism lack linkage, and the feeding speed cannot match the polishing process, resulting in uneven polishing or equipment idling. On the other hand, the polishing mechanism has rough positioning, the polishing head is easily offset, the pipe ovality deviation exceeds the standard, and the scrap rate can reach 10%. In addition, the polishing pressure is difficult to accurately control, and over-polishing and under-polishing are frequent, affecting the quality and cost of the pipe. At the same time, the traditional device has a narrow pipe diameter adaptation range. When processing pipes exceeding the preset diameter, a large number of molds need to be replaced, which is time-consuming and labor-intensive, affecting production continuity. There is even a lack of effective response measures for special-shaped pipes or pipes made of special materials. In addition, the complex equipment structure is not only difficult to maintain, but also lacks an adaptive adjustment mechanism, resulting in severe component wear, which significantly increases operating costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a stainless steel pipe processing device.

[0005] To solve the above technical problems, the technical solution provided by the present invention is: a stainless steel pipe processing device, comprising a casing, which is a hollow structure, and a grinding mechanism for grinding the stainless steel pipe is provided in the casing, and a positioning mechanism is provided in the casing for positioning the grinding mechanism and simultaneously driving the grinding mechanism to rotate, and the positioning mechanism comprises a power sleeve rotatably arranged in the casing, and a power gear ring is provided at one end of the power sleeve, and a matching gear meshed with the power gear ring is rotatably provided in the casing, and a matching rotating column is provided at one end of the matching gear, and a matching connecting rod is rotatably provided on the matching rotating column, and a positioning rotating column is rotatably provided at one end of the matching connecting rod, and a matching support rod rotatably connected to the adjacent matching connecting rod is rotatably provided at the other end of the matching connecting rod, and a positioning gear connected to the grinding mechanism is provided on the positioning rotating column, and the positioning gear is meshed with the matching gear, and an adjusting mechanism for adjusting the position of the positioning gear is provided in the casing, an internal grinding assembly for grinding the inside of the stainless steel pipe is provided in the casing, and a pipe feeding mechanism for feeding the stainless steel pipe is provided on the casing.

[0006] As an improvement, the grinding mechanism includes a grinding sleeve arranged at one end of the positioning gear, a support connecting rod is rotatably provided on the grinding sleeve, a support plate is rotatably connected to the support connecting rod, a grinding plate is connected to the support plate by bolts, and an adaptive mechanism is provided on the grinding sleeve for adaptively adjusting the distance between the grinding plate and the grinding sleeve.

[0007] As an improvement, the internal grinding assembly includes an internal grinding rack and an internal grinding bracket slidingly arranged on one side of the casing. An internal grinding gear that engages with the internal grinding rack and the internal grinding bracket at the same time is rotatably provided on one side of the casing. An internal grinding support rod is provided on the internal grinding support rod, and an internal grinding motor is provided on the internal grinding support rod. The output end of the internal grinding motor is connected to a grinding mechanism for grinding the inside of the stainless steel pipe.

[0008] As an improvement, the pipe delivery mechanism includes a pipe delivery slide slidably arranged on the outside of the casing, and a pipe delivery column driven to rotate by a motor is provided on the pipe delivery slide, and a friction strip is spirally wound on the pipe delivery column. A pipe delivery disk driven to rotate by an adjustment mechanism is provided on one side of the casing, and the pipe delivery disk slides with the pipe delivery slide.

[0009] As an improvement, the adjustment mechanism includes an adjustment bracket arranged in the casing, on which an adjustment worm driven to rotate by a motor is rotatably provided, and an adjustment link rotatably connected to an adjacent mating support rod is rotatably provided on one of the mating gears, and one end of the adjustment link is provided with a key engaged with the adjustment worm.

[0010] As an improvement, the pipe delivery disc is provided with a pipe delivery groove, the pipe delivery groove is arranged corresponding to the pipe delivery slide, the pipe delivery slide is provided with a pipe delivery slide rod that slides with the pipe delivery groove, the pipe delivery disc is provided with an adjustment lever, and the adjustment bracket is rotatably provided with an adjustment worm gear that engages with the adjustment worm, and one end of the adjustment worm gear is provided with an adjustment fork that slides with the adjustment lever.

[0011] As an improvement, an inner grinding jacket is slidably provided on the inner grinding rack, and an inner grinding plate is slidably provided on the inner grinding jacket. The inner grinding plate is driven to move by a power component and is movably connected to the stainless steel pipe.

[0012] As an improvement, the adaptive mechanism includes an adjusting sleeve slidably arranged at one end of the polishing sleeve, and a polishing connecting rod rotatably connected to the support plate is rotatably provided on the adjusting sleeve. The polishing connecting rod and the support connecting rod are correspondingly arranged, and an adjusting spring connected to the adjusting sleeve is sleeved on the polishing sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the grinding mechanism and the internal grinding assembly operate synchronously, and the inner and outer surfaces of the stainless steel pipe are ground at one time, which greatly shortens the processing cycle and significantly improves the processing efficiency. It is particularly suitable for batch production scenarios. The positioning mechanism accurately realizes the positioning and rotation of the grinding mechanism, ensuring that the grinding mechanism can stably grind the stainless steel pipe, avoid deviation in the grinding position, and ensure the grinding quality. The adjustment mechanism can fine-tune the position of the positioning gear. On the one hand, it can accurately control the grinding pressure to avoid over-grinding or under-grinding due to improper grinding pressure. On the other hand, it can make the grinding mechanism better fit stainless steel pipes of different diameters, further improving the grinding quality. The pipe feeding mechanism realizes the automation of stainless steel pipe feeding, which not only can smoothly feed the stainless steel pipe into the casing, but also can flexibly adjust the position of the pipe feeding slide according to stainless steel pipes of different diameters through linkage with the adjustment mechanism, thereby improving the adaptability of the pipe feeding. The various mechanisms cooperate with each other to realize integrated and efficient operation from pipe feeding to grinding. The closed casing effectively reduces dust pollution and creates a more environmentally friendly working environment. Specifically:

[0014] 1. The adjustment mechanism uses a motor to drive the adjustment worm to engage with the key at the end of the adjustment connecting rod, achieving millimeter-level precision adjustment and accurately controlling the amount of grinding plate pressure. During the adjustment process, the self-locking characteristics of the worm and key maintain a constant pressure in the grinding mechanism, avoiding positioning deviation caused by vibration. The mechanical hard connection promotes synchronous pressure changes on multiple grinding plates, eliminating manual adjustment errors. It is suitable for high-precision thin-walled tube and special-shaped tube processing, improving the versatility and production efficiency of the equipment.

[0015] 2. The three groups of supporting links in the grinding mechanism drive the grinding plates to be symmetrically distributed at 120°, covering the outer wall of the steel pipe and eliminating the blind area of grinding. The adaptive mechanism is sensitive to response, and the adjustment spring cooperates with the adjustment sleeve to ensure that the grinding plate always fits the steel pipe to prevent over-grinding and under-grinding. The supporting links and support plates can adaptively adjust the angle to reduce the vibration caused by the uneven surface of the steel pipe. The mechanism layout is reasonable, and the three groups of grinding mechanisms are evenly distributed around the circumference to reduce equipment vibration. The adjustment sleeve adopts a wear-resistant bushing to ensure long-term accuracy while reducing ineffective friction.

[0016] 3. The internal grinding assembly flexibly adjusts the position of the grinding mechanism through the cooperation of the internal grinding rack, internal grinding gear and internal grinding bracket to ensure accurate grinding. The internal grinding jacket and internal grinding plate are driven by the power component to stably clamp the steel pipe. The movable connection design between the internal grinding plate and the outer wall of the steel pipe supports continuous feeding of the steel pipe and realizes "grinding while moving". Compared with traditional segmented grinding, the overall structure is simpler. With the help of existing mature power components, the maintenance difficulty and cost are reduced, and it can meet the needs of inner surface grinding of stainless steel pipes of different diameters;

[0017] 4. The pipe feeding mechanism uses the adjustment mechanism, and the motor drives the adjustment worm to drive the adjustment worm wheel to rotate. The angle of the pipe feeding disc is deflected by the cooperation of the adjustment fork and the adjustment lever, so that the pipe feeding slide is accurately displaced, which can easily adapt to the clamping of stainless steel pipes of different diameters. The pipe feeding column is driven by the motor, and the spiral friction strips on its surface push the steel pipe into the casing at a uniform speed, which can match the cutting efficiency of the grinding mechanism to avoid abnormal feeding. The spiral friction strips and the pipe feeding column form a "flexible roller" to prevent damage to the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a stainless steel pipe processing device of the present invention.

[0019] Figure 2 It is an exploded view of a stainless steel pipe processing device of the present invention.

[0020] Figure 3 It is a cross-sectional view of a stainless steel pipe processing device of the present invention.

[0021] Figure 4 It is a structural schematic diagram of a positioning mechanism of a stainless steel pipe processing device of the present invention.

[0022] Figure 5 It is an exploded view of a positioning mechanism of a stainless steel pipe processing device of the present invention.

[0023] Figure 6 It is a right side view of a positioning mechanism of a stainless steel pipe processing device according to the present invention.

[0024] Figure 7 It is a structural schematic diagram of a grinding mechanism of a stainless steel pipe processing device of the present invention.

[0025] Figure 8 It is an exploded view of a grinding mechanism of a stainless steel pipe processing device of the present invention.

[0026] Figure 9 It is an exploded view of an inner grinding assembly of a stainless steel pipe processing device according to the present invention.

[0027] Figure 10 The present invention is a structural schematic diagram of a pipe feeding mechanism of a stainless steel pipe processing device.

[0028] Figure 11 It is a structural schematic diagram of an adjusting mechanism of a stainless steel pipe processing device of the present invention.

[0029] Figure 12 It is an exploded view of an adjustment mechanism of a stainless steel pipe processing device according to the present invention.

[0030] As shown in the figure: 1. Housing; 2. Positioning mechanism; 21. Power sleeve; 211. Power gear ring; 22. Matching gear; 221. Matching column; 222. Matching connecting rod; 223. Matching support rod; 224. Positioning column; 225. Positioning gear; 23. Adjusting connecting rod; 24. Adjusting mechanism; 241. Adjusting bracket; 242. Adjusting worm; 243. Adjusting worm gear; 244. Adjusting fork; 3. Grinding mechanism; 31. Grinding sleeve; 311. Support connecting rod ; 32. Support plate; 321. Grinding plate; 33. Adjusting sleeve; 331. Adjusting spring; 332. Grinding connecting rod; 4. Internal grinding assembly; 41. Internal grinding rack; 411. Internal grinding jacket; 412. Internal grinding splint; 42. Internal grinding gear; 43. Internal grinding bracket; 44. Internal grinding support rod; 45. Internal grinding motor; 5. Pipe feeding mechanism; 51. Pipe feeding disc; 511. Pipe feeding chute; 512. Adjusting lever; 52. Pipe feeding slide; 521. Pipe feeding slide rod; 53. Pipe feeding column. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below with reference to the accompanying drawings.

[0032] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 As shown, a stainless steel pipe processing device includes a casing 1, which is a hollow structure with openings at both ends of the casing 1. A grinding mechanism 3 for grinding the stainless steel pipe is provided in the casing 1, and a positioning mechanism 2 is provided in the casing 1 for positioning the grinding mechanism 3 and driving the grinding mechanism 3 to rotate at the same time. The positioning mechanism 2 includes a power sleeve 21 rotatably arranged in the casing 1, the power sleeve 21 is driven to rotate by a motor, and a power gear ring 211 is provided at one end of the power sleeve 21. A matching gear 22 is rotatably provided in the casing 1 and meshed with the power gear ring 211. The matching gears 22 are provided in three groups, and a matching rotating column 221 is provided at one end of the matching gear 22. A matching rotating column 221 is rotatably provided on the matching rotating column 221. The connecting rod 222 and the mating connecting rod 222 are L-shaped structures. The other end of the mating connecting rod 222 is rotatably provided with a positioning column 224. One end of the mating connecting rod 222 is rotatably provided with a mating support rod 223 rotatably connected to the adjacent mating connecting rod 222. One end of the mating connecting rod 222 is rotatably provided with a mating support rod 223 rotatably connected to the adjacent mating connecting rod 222. A positioning gear 225 connected to the grinding mechanism 3 is provided on the positioning column 224. The positioning gear 225 is meshed with the mating gear 22. An adjusting mechanism 24 for adjusting the position of the positioning gear 225 is provided in the casing 1. An internal grinding component 4 for grinding the inside of the stainless steel pipe is provided in the casing 1. A pipe conveying mechanism 5 for conveying the stainless steel pipe is provided on the casing 1.

[0033] The working principle of the present invention is as follows: the pipe delivery mechanism 5 delivers the stainless steel pipe into the casing 1 through the openings at both ends of the casing 1 to prepare for the subsequent grinding process. After that, the motor starts, driving the power sleeve 21 to rotate, and the power gear ring 211 at one end of the power sleeve 21 rotates accordingly. Since the power gear ring 211 is engaged with the three sets of matching gears 22, the matching gears 22 are driven to rotate around their own axes. The rotation of the matching gears 22 drives the matching rotating column 221 to rotate synchronously.

[0034] Since the mating link 222 is an L-shaped structure, and one end is rotatably connected to the adjacent mating link 222 through the mating support rod 223, and the other end is rotatably connected to the positioning rotating column 224, the adjusting mechanism 24 fine-tunes the position of the positioning gear 225 to change the position of the grinding mechanism 3 so that it can accurately grind the stainless steel pipe. The positioning gear 225 on the positioning rotating column 224 is connected to the grinding mechanism 3 and meshes with the mating gear 22 at the same time, on the one hand, it realizes the positioning of the grinding mechanism 3 to ensure that the grinding mechanism 3 is in a suitable working position, and on the other hand, it drives the grinding mechanism 3 to rotate so that the grinding mechanism 3 grinds the outer wall of the stainless steel pipe. Afterwards, the grinding mechanism 3 rotates at high speed to grind the outer surface of the stainless steel pipe to remove impurities and defects on the surface and make its surface smoother. At the same time, the inner grinding component 4 grinds the inside of the stainless steel pipe to ensure that the inner surface of the stainless steel pipe can also meet the required processing standards.

[0035] Furthermore, the outer wall grinding mechanism 3 and the inner grinding component 4 work synchronously, and the inner and outer surface treatment can be completed in a single pass, which significantly shortens the processing cycle and is suitable for mass production. The three sets of linkage positioning mechanisms 2 realize radial adaptive adjustment and are compatible with stainless steel pipes of different diameters (such as Φ20~150mm). The adjustment mechanism 24 supports manual or automatic fine-tuning to accurately control the grinding pressure to avoid over-grinding or under-grinding. The symmetrically distributed grinding mechanism 3 provides balanced radial pressure to ensure consistent outer wall grinding amount and prevent ovality deviation. The inner grinding component 4 adopts a center positioning design to avoid uneven inner wall thickness due to grinding head offset. The load is balanced when multiple grinding heads work together, and the motor power utilization rate is high. The closed housing 1 can be integrated with a dust removal interface to reduce dust pollution.

[0036] Combined with attachment Figure 5 , Attachment Figure 6 , Attachment Figure 11 and attached Figure 12 As shown, the adjustment mechanism 24 includes an adjustment bracket 241 arranged in the casing 1, and an adjustment worm 242 driven to rotate by a motor is rotatably provided on the adjustment bracket 241. An adjustment link 23 rotatably connected to the adjacent matching support rod 223 is rotatably provided on one of the mating gears 22, and a key engaged with the adjustment worm 242 is provided at one end of the adjustment link 23.

[0037] The working principle of the adjustment mechanism 24 is as follows: the adjustment bracket 241 is fixed to the inside of the casing 1. When the motor drives the adjustment worm 242 to rotate, the worm and the key at the end of the adjustment link 23 form a worm gear meshing transmission, which converts the rotational motion of the worm into a linear displacement of the key, pushing the adjustment link 23 to swing around the rotating shaft of the matching gear 22. Since the adjustment link 23 is simultaneously connected to the adjacent matching support rod 223 for rotation, the swing angle change of the adjustment link 23 will change the expansion and contraction amount of the matching support rod 223, and then through the linkage of the matching support rod 223 and the L-shaped structure matching link 222, the synchronous radial contraction or expansion of the three groups of positioning rotating columns 224 is controlled, and finally the positioning gear 225 and the connected grinding sleeve 31 are driven to move as a whole, so as to realize the precise adjustment of the contact pressure between the grinding plate 321 and the outer wall of the stainless steel pipe. When the worm stops rotating, the self-locking characteristic of the worm and key meshing structure can fix the position of the adjustment link 23, ensuring that the grinding mechanism 3 maintains constant pressure under high-speed rotation or external impact, and avoids positioning offset due to vibration;

[0038] The worm drive system converts the high-torque motor output into millimeter-level fine-tuning accuracy with an adjustment resolution of up to ±0.1mm. It can accurately control the amount of pressure of the grinding plate 321 on the stainless steel tube (such as in the range of 0.2 to 1.5mm), adapting to the multi-stage process requirements from rough grinding to fine polishing. Through mechanical hard connection, the pressure of multiple grinding plates 321 is ensured to change synchronously, eliminating the error of manual point-by-point adjustment, so that the consistency error of the circumferential grinding amount of the stainless steel tube is ≤5μm. The self-locking characteristics of the worm are combined with the rigid support of the adjustment bracket 241. The system stability can still be maintained at a grinding speed of 3000rpm, avoiding the pressure attenuation problem caused by high-frequency vibration of the traditional spring adjustment mechanism 24. The adjustment mechanism 24 combines the rigidity of mechanical transmission with the flexibility of intelligent control, and is suitable for large-scale processing of high-precision thin-walled tubes and special-shaped tubes.

[0039] Combined with attachment Figure 4 , Attachment Figure 7 and attached Figure 8 As shown, the grinding mechanism 3 includes a grinding sleeve 31 arranged at one end of the positioning gear 225, and a support link 311 is rotatably provided on the grinding sleeve 31. The support links 311 are grouped into two along the axial direction of the grinding sleeve 31, and three groups of support links 311 are equidistantly arranged along the circumferential direction of the grinding sleeve 31. A support plate 32 is rotatably connected to the support link 311, and a grinding plate 321 is connected to the support plate 32 by bolts. An adaptive mechanism for adaptively adjusting the distance between the grinding plate 321 and the grinding sleeve 31 is provided on the grinding sleeve 31, and the adaptive mechanism includes an adjusting sleeve 33 slidably arranged at one end of the grinding sleeve 31, and a grinding link 332 rotatably connected to the support plate 32 is rotatably provided on the adjusting sleeve 33. The grinding link 332 is correspondingly arranged to the support link 311, and an adjusting spring 331 connected to the adjusting sleeve 33 is sleeved on the grinding sleeve 31.

[0040] Working principle of the grinding mechanism 3: The positioning gear 225 meshes with the mating gear 22, driving the grinding sleeve 31 to rotate synchronously. The grinding sleeve 31 drives the support plate 32 to move through three groups of circumferentially evenly distributed support links 311 (two in each group). In the initial state, the adjustment spring 331 is in a compressed state, pushing the adjustment sleeve 33 to slide toward the end of the grinding sleeve 31. The support plate 32 is pulled outward by the grinding link 332, so that the grinding plate 321 contacts the outer wall of the stainless steel pipe. When the stainless steel pipe enters the grinding area, if the diameter of the stainless steel pipe changes (for example, it is too large or too small), the radial pressure of its outer wall on the grinding plate 321 will change.

[0041] When the diameter of the stainless steel pipe is too large, the stainless steel pipe squeezes the polishing plate 321, pushing the support plate 32 to shrink toward the polishing sleeve 31. The support plate 32 forces the adjusting sleeve 33 to slide axially along the polishing sleeve 31 through the polishing connecting rod 332, compressing the adjusting spring 331. The spring reaction force increases, thereby balancing the external pressure and avoiding deformation of the stainless steel pipe caused by excessive squeezing. When the diameter of the stainless steel pipe is too small, the adjusting spring 331 releases its elastic force, pushing the adjusting sleeve 33 to move away from the polishing sleeve 31, and pushing the support plate 32 outward through the polishing connecting rod 332, ensuring that the polishing plate 321 always fits the outer wall of the stainless steel pipe.

[0042] When the grinding sleeve 31 rotates, the supporting link 311 and the supporting plate 32 adaptively adjust the angle through axial sliding and radial swinging, ensuring that the three groups of grinding plates 321 apply force evenly during high-speed rotation, eliminating vibration caused by the ovality or uneven surface of the stainless steel tube. At the same time, the grinding plates 321 on each group of support plates 32 are fixed by bolts, and sandpaper or grinding blocks of different roughness can be quickly replaced. Furthermore, the three groups of grinding plates 321 are symmetrically distributed at 120° to form a stable clamping force, while covering the entire circumference of the outer wall of the stainless steel tube to avoid grinding blind spots. Furthermore, the adjustment spring 331 not only provides adaptive pressure, but also plays a buffering role. When there are local protrusions or welds on the surface of the stainless steel tube, the spring allows a single group of grinding plates 321 to retract briefly to prevent sudden changes in grinding force from damaging the equipment or workpiece.

[0043] Furthermore, the elastic system composed of the adjusting spring 331 and the adjusting sleeve 33 can respond to the change of the diameter of the stainless steel pipe in real time (within the range of ±5mm), automatically adjust the radial position of the grinding plate 321, ensure constant contact pressure, and avoid over-grinding or missed grinding caused by manual intervention. The three groups of grinding mechanisms 3 are evenly distributed on the circumference, and the centrifugal forces offset each other during rotation, reducing equipment vibration. The sliding cooperation between the adjusting sleeve 33 and the grinding sleeve 31 adopts a wear-resistant bushing to ensure the accuracy of long-term high-frequency use. The grinding plate 321 is fixed to the support plate 32 by bolts, and the replacement time is only It takes 2 to 3 minutes. The elastic pressure system ensures that the contact surface between the grinding plate 321 and the stainless steel pipe is evenly stressed, and the sandpaper or grinding block wears synchronously, avoiding the "wave pattern" or "spiral mark" caused by traditional single-point grinding. By replacing the material of the grinding plate 321 (such as diamond grinding block, nylon grinding wheel) or adjusting the stiffness of the spring 331, it can adapt to different processing stages such as coarse grinding, fine polishing, and oxide layer removal. The surface roughness can reach below Ra0.8μm. The adaptive mechanism reduces ineffective friction and the motor load fluctuation is small. Compared with the fixed grinding mechanism 3, energy saving is about 15% to 20%.

[0044] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 8 and attached Figure 9 As shown, the internal grinding assembly 4 includes an internal grinding rack 41 and an internal grinding bracket 43 which are slidably arranged on one side of the casing 1. An internal grinding gear 42 which is simultaneously engaged with the internal grinding rack 41 and the internal grinding bracket 43 is rotatably provided on one side of the casing 1. An internal grinding support rod 44 is provided on the internal grinding support rod 44. An internal grinding motor 45 is provided on the internal grinding motor 45. The output end of the internal grinding motor 45 is connected to a grinding mechanism 3 for grinding the inside of the stainless steel pipe. The front end of the grinding plate 321 of this grinding mechanism 3 is provided with an arc facing the axial direction of the internal grinding support rod 44. An internal grinding jacket 411 is slidably provided on the internal grinding rack 41, and an internal grinding splint 412 is slidably provided on the internal grinding jacket 411. The internal grinding splint 412 is driven to move by a power component and is movably connected to the stainless steel pipe. The power component can be one of the telescopic components such as a hydraulic cylinder, a cylinder or an electric push rod. This is the current existing technology and will not be repeated here.

[0045] The working principle of the inner grinding assembly 4 is as follows: at the beginning of work, the pipe feeding mechanism 5 conveys the stainless steel pipe to a predetermined position in the casing 1, and the inner grinding jacket 411 and the inner grinding clamping plate 412 work together. The power component drives the inner grinding clamping plate 412 to move and clamp the stainless steel pipe, so that the stainless steel pipe can drive the inner grinding rack 41 to move synchronously. Then, since the inner grinding gear 42 is meshed with the inner grinding rack 41 and the inner grinding bracket 43 at the same time, when the inner grinding rack 41 slides along one side of the casing 1 through the stainless steel pipe, the inner grinding gear 42 rotates accordingly, driving the inner grinding bracket 43 meshed with it to slide synchronously, thereby changing the position of the inner grinding support rod 44. At this time, the inner grinding motor 45 is started, driving the grinding mechanism 3 to rotate at high speed to grind the inner wall of the stainless steel pipe. Because the front end of the grinding plate 321 is provided with an arc facing the axial direction of the inner grinding support rod 44, this special design allows the grinding plate 321 to automatically extend into the inner wall of the stainless steel pipe when it contacts the inner wall of the stainless steel pipe, which can grind the pipe wall more comprehensively and carefully.

[0046] Furthermore, the movable connection design between the inner grinding splint 412 and the outer wall of the stainless steel pipe allows the stainless steel pipe to be fed continuously under the push of the pipe feeding mechanism 5, realizing the operation of "grinding while moving". The entire length of the inner wall can be processed in a single processing, and the efficiency is more than 3 times higher than that of traditional segmented grinding.

[0047] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 10 , Attachment Figure 11 and attached Figure 12 As shown, the pipe feeding mechanism 5 includes a pipe feeding slide 52 slidably arranged on the outside of the casing 1, and a pipe feeding column 53 driven to rotate by a motor is provided on the pipe feeding slide 52, and a friction strip is spirally wound on the pipe feeding column 53. A pipe feeding disc 51 driven to rotate by an adjustment mechanism 24 is rotatably provided on one side of the casing 1, and the pipe feeding disc 51 slides with the pipe feeding slide 52, and a pipe feeding groove 511 is provided on the pipe feeding disc 51. The pipe feeding groove 511 is correspondingly arranged with the pipe feeding slide 52, and a pipe feeding slide rod 521 slidably cooperates with the pipe feeding groove 511 is provided on the pipe feeding slide 52, and an adjusting lever 512 is provided on the pipe feeding disc 51, and an adjusting worm gear 243 engaged with the adjusting worm 242 is rotatably provided on the adjusting bracket 241, and an adjusting fork 244 slidably cooperates with the adjusting lever 512 is provided at one end of the adjusting worm gear 243.

[0048] Working principle of the tube feeding mechanism 5: When the adjustment mechanism 24 is started, the motor drives the adjustment worm 242 to rotate and engage the adjustment worm wheel 243 to rotate. The adjustment fork 244 at the shaft end of the adjustment worm wheel 243 pushes the adjustment lever 512 on the tube feeding disc 51 to slide along a specific trajectory as the rotation angle changes, forcing the tube feeding disc 51 to deflect a certain angle around the axis. The tube feeding groove 511 on the surface of the tube feeding disc 51 and the tube feeding slide 521 of the tube feeding slide 52 form a sliding pair. The angular deflection of the tube feeding disc 51 is converted into a linear displacement of the tube feeding slide 52 along the outer side of the housing 1, thereby changing the initial position of the tube feeding slide 52 to adapt to the clamping requirements of stainless steel tubes of different diameters.

[0049] After the pipe feeding carriage 52 is in place, the pipe feeding column 53 is driven by an independent motor to rotate at high speed. The high-friction coefficient rubber strip spirally wound on its surface contacts the outer wall of the stainless steel pipe, and the friction force is used to push the stainless steel pipe from the feed end into the internal grinding area of the casing 1 at a uniform speed. When the stainless steel pipe enters the grinding station, the forward speed of the pipe feeding carriage 52 is dynamically corrected (adjustable from 0.5 to 3 m / min) to accurately match the feed rate of the stainless steel pipe with the cutting efficiency of the internal and external grinding mechanisms 3, avoiding uneven grinding caused by too fast feeding or idling of the equipment caused by too slow feeding. If special-shaped pipes or pipes made of special materials need to be processed, the friction driving force can be changed by adjusting the rotation speed of the pipe feeding column 53 (in the range of 20 to 200 rpm). The elastic deformation of the spiral friction strip adapts to the uneven surface of the pipe body to ensure that there is no slippage or indentation during the conveying process.

[0050] Furthermore, since the spiral friction strip and the rotating pipe delivery column 53 form a "flexible roller" drive mechanism, it not only provides stable thrust but also avoids rigid contact from damaging the surface of the stainless steel pipe. The delivery straightness error is ≤0.2mm / m, which is particularly suitable for high-requirement scenarios such as mirror stainless steel pipes. The pipe delivery disc 51 is made of nitrided alloy steel, and the slide surface is inlaid with a polytetrafluoroethylene wear-resistant bushing, which maintains micron-level matching accuracy in long-term high-frequency sliding, and has a service life of more than 500,000 times.

[0051] During the specific implementation of the present invention, the processing parameters and equipment status are first confirmed. The operator carefully checks the specifications of the stainless steel pipe to be processed, such as the diameter, and simultaneously checks each component of the equipment to see if there is any looseness or damage, and confirms that lubricant has been added to each lubrication point as required.

[0052] Afterwards, according to the diameter of the stainless steel pipe to be processed, the motor of the adjustment mechanism 24 is turned on, and the motor drives the adjustment worm 242 on the adjustment bracket 241 in the casing 1 to rotate. The worm and the key at one end of the adjustment link 23 form a worm-gear meshing transmission. This transmission method converts the rotational motion of the worm into a linear displacement of the key, pushing the adjustment link 23 to swing around the rotating shaft of the matching gear 22. Since the adjustment link 23 is connected to the adjacent matching support rod 223 for rotation, its swing will change the expansion and contraction amount of the matching support rod 223, and then through the linkage of the matching support rod 223 and the L-shaped matching link 222, the three groups of positioning columns 224 are controlled to shrink radially synchronously. Or expand, so that the grinding mechanism 3 can adapt to the diameter of the stainless steel pipe. At the same time, the adjusting worm 242 rotates while driving the adjusting worm wheel 243 to rotate. The adjusting fork 244 at one end of the adjusting worm wheel 243 pushes the adjusting lever 512 on the pipe feeding disc 51, and the pipe feeding disc 51 deflects around the axis. The pipe feeding slide 521 on the pipe feeding slide 52 slides in the pipe feeding slide groove 511, changing the position of the pipe feeding slide 52 to adapt to the clamping requirements of stainless steel pipes of different diameters. Afterwards, according to the processing requirements, the appropriate grinding plate 321 is selected and installed on the support plate 32 of the grinding mechanism 3 by bolts;

[0053] After completing the above preparations, start the motor of the pipe feeding mechanism 5, which drives the pipe feeding column 53 to rotate. The friction strips spirally wound on the surface of the pipe feeding column 53 rotate at high speed. With the help of friction, the stainless steel pipe enters the interior of the casing 1 from the feed end of the casing 1 at a uniform speed. The pipe feeding speed can be adjusted as needed within the range of 0.5 to 3 m / min, and the rotation speed of the pipe feeding column 53 can be adjusted within the range of 20 to 200 rpm to meet the transportation requirements of different pipes.

[0054] The motor of the positioning mechanism 2 is started, and the motor drives the power sleeve 21 to rotate. The power gear ring 211 at one end of the power sleeve 21 drives the three sets of matching gears 22 to rotate around their own axes. The matching gear 22 drives the grinding sleeve 31 to rotate through the matching connecting rod 222 and the positioning rotating column 224 to grind the outer wall of the stainless steel pipe. After the stainless steel pipe is clamped by the inner grinding clamping plate 412, it drives the inner grinding rack 41 to move, and the inner grinding gear 42 rotates accordingly, driving the inner grinding bracket 43 and the inner grinding support rod 44 to move, and adjusting the position of the grinding mechanism 3. The inner grinding assembly 4 adopts a center positioning design to avoid uneven thickness of the inner wall caused by deviation of the grinding head. The inner grinding motor 45 is started to drive the grinding mechanism 3 to grind the inner wall of the stainless steel pipe. The front end of the grinding plate 321 is provided with an arc facing the axial direction of the inner grinding support rod 44. This special design allows the grinding plate 321 to automatically extend into the inner wall of the stainless steel pipe when it contacts the inner wall of the stainless steel pipe, which can grind the pipe wall more comprehensively and carefully.

[0055] After the grinding process is completed, start the power component to loosen the inner grinding clamp 412, then let the pipe feeding mechanism 5 run in reverse to feed the processed stainless steel pipe out of the casing 1, turn off the motors of each mechanism, clean up the debris and sundries in the equipment, keep the equipment clean, and complete the grinding operation of the stainless steel pipe.

[0056] Check all parts of the equipment for abnormal wear and tear. If necessary, perform maintenance or replacement in a timely manner. If you need to continue processing stainless steel pipes of different specifications, repeat the steps in the pre-operation preparation stage and adjust the equipment accordingly.

[0057] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A stainless steel pipe processing device, comprising a housing (1), wherein the housing (1) is a hollow structure, and a grinding mechanism (3) for grinding the stainless steel pipe is provided in the housing (1), characterized in that: The housing (1) is provided with a positioning mechanism (2) for positioning the grinding mechanism (3) and driving the grinding mechanism (3) to rotate. The positioning mechanism (2) includes a power sleeve (21) rotatably arranged in the housing (1). One end of the power sleeve (21) is provided with a power gear ring (211). A matching gear (22) meshing with the power gear ring (211) is rotatably provided in the housing (1). One end of the matching gear (22) is provided with a matching rotating column (221). A matching connecting rod (222) is provided, one end of the matching connecting rod (222) is rotatably provided with a positioning column (224), the other end of the matching connecting rod (222) is rotatably provided with a matching support rod (223) rotatably connected to the adjacent matching connecting rod (222), a positioning gear (225) connected to the grinding mechanism (3) is provided on the positioning column (224), the positioning gear (225) is meshed with the matching gear (22), and an adjusting mechanism (24) for adjusting the position of the positioning gear (225) is provided in the housing (1); An internal grinding assembly (4) for grinding the interior of the stainless steel pipe is provided in the housing (1), and a pipe delivery mechanism (5) for delivering the stainless steel pipe is provided on the housing (1); The inner grinding assembly (4) comprises an inner grinding rack (41) and an inner grinding bracket (43) which are slidably arranged on one side of the housing (1); an inner grinding gear (42) which is rotatably arranged on one side of the housing (1) and meshes with the inner grinding rack (41) and the inner grinding bracket (43); an inner grinding support rod (44) is arranged on the inner grinding support rod (44); an inner grinding motor (45) is arranged on the inner grinding motor (45); an output end of the inner grinding motor (45) is connected to a grinding mechanism 1 for grinding the inside of the stainless steel pipe; The pipe feeding mechanism (5) comprises a pipe feeding slide (52) slidably arranged on the outside of the housing (1); a pipe feeding column (53) driven to rotate by a motor is provided on the pipe feeding slide (52); a friction strip is spirally wound on the pipe feeding column (53); a pipe feeding disc (51) driven to rotate by an adjustment mechanism (24) is rotatably provided on one side of the housing (1); the pipe feeding disc (51) and the pipe feeding slide (52) are in sliding cooperation; The adjusting mechanism (24) includes an adjusting bracket (241) disposed in the housing (1), an adjusting worm (242) rotatably provided on the adjusting bracket (241) and driven to rotate by a motor, an adjusting link (23) rotatably provided on one of the mating gears (22) and connected to the adjacent mating support rod (223), and a key meshing with the adjusting worm (242) at one end of the adjusting link (23); The pipe delivery disc (51) is provided with a pipe delivery chute (511), the pipe delivery chute (511) is correspondingly arranged with the pipe delivery slide (52), the pipe delivery slide (52) is provided with a pipe delivery slide rod (521) that slidably cooperates with the pipe delivery chute (511), the pipe delivery disc (51) is provided with an adjustment lever (512), the adjustment bracket (241) is rotatably provided with an adjustment worm wheel (243) that meshes with the adjustment worm (242), and one end of the adjustment worm wheel (243) is provided with an adjustment fork (244) that slidably cooperates with the adjustment lever (512).

2. The stainless steel pipe processing device according to claim 1, characterized in that: The grinding mechanism (3) and the grinding mechanism 1 respectively include a grinding sleeve (31). The grinding sleeve (31) on the grinding mechanism (3) is arranged at one end of the positioning gear (225). The grinding sleeve (31) on the grinding mechanism 1 is connected to the output shaft of the internal grinding motor (45). A support connecting rod (311) is rotatably provided on the grinding sleeve (31). A support plate (32) is rotatably connected to the support connecting rod (311). A grinding plate (321) is connected to the support plate (32) via bolts. An adaptive mechanism for adaptively adjusting the distance between the grinding plate (321) and the grinding sleeve (31) is provided on the grinding sleeve (31).

3. The stainless steel pipe processing device according to claim 1, characterized in that: An inner grinding rack (41) is slidably provided with an inner grinding jacket (411), and an inner grinding clamping plate (412) is slidably provided on the inner grinding jacket (411). The inner grinding clamping plate (412) is driven to move by a power component and is movably connected to the stainless steel pipe.

4. The stainless steel pipe processing device according to claim 2, characterized in that: The adaptive mechanism comprises an adjusting sleeve (33) slidably arranged at one end of the polishing sleeve (31); a polishing connecting rod (332) rotatably connected to the support plate (32) is rotatably arranged on the adjusting sleeve (33); the polishing connecting rod (332) and the support connecting rod (311) are arranged correspondingly; and an adjusting spring (331) connected to the adjusting sleeve (33) is sleeved on the polishing sleeve (31).

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