Stainless steel pipe processing device

Abstract

The invention relates to the technical field of stainless steel pipe processing devices, and discloses a stainless steel pipe processing device which comprises a machine shell, a grinding mechanism for grinding a stainless steel pipe is arranged in the machine shell, and a positioning mechanism for positioning the grinding mechanism and driving the grinding mechanism to rotate at the same time is arranged in the machine shell. Compared with the prior art, the stainless steel pipe grinding machine has the beneficial effects that the grinding mechanism and the internal grinding mechanism work synchronously, the machining period is greatly shortened, the stainless steel pipe grinding machine is suitable for batch production, the positioning mechanism accurately positions and drives the grinding mechanism, the machining efficiency is improved, and the machining efficiency is improved. The adjusting mechanism finely adjusts the position of a positioning gear, accurately controls the grinding pressure and adapts to different pipe diameters, the pipe feeding mechanism automatically feeds pipes, is linked with the adjusting mechanism and flexibly adjusts a pipe feeding sliding frame, and all the mechanisms cooperate with one another to achieve pipe feeding and grinding integration.

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, the existing stainless steel pipe processing equipment has significant defects in many key dimensions and it is difficult to meet industry needs.

[0003] In terms of processing efficiency and grinding quality, the outer surface grinding and inner surface grinding of traditional equipment need to be carried out in steps, which greatly prolongs the processing cycle. The processing of a single medium-length stainless steel pipe takes more than 1 hour, which seriously restricts production capacity. The pipe feeding mechanism and the grinding mechanism lack linkage, and the feeding speed cannot match the grinding process, resulting in uneven grinding or equipment idling. On the other hand, the positioning of the grinding mechanism is rough, the grinding head is easy to offset, the ovality deviation of the pipe exceeds the standard, the scrap rate can reach 10%, and the grinding pressure is difficult to accurately control. Over-grinding and under-grinding occur frequently, 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. In the face of special-shaped pipes or pipes made of special materials, there is a lack of effective response measures. In addition, the complex equipment structure is not only difficult to maintain, but also lacks an adaptive adjustment mechanism, resulting in severe wear of components, which greatly 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, the casing is a hollow structure, a grinding mechanism for grinding the stainless steel pipe is arranged in the casing, a positioning mechanism for positioning the grinding mechanism and driving the grinding mechanism to rotate at the same time is arranged in the casing, the positioning mechanism comprises a power sleeve rotatably arranged in the casing, a power gear ring is arranged at one end of the power sleeve, a matching gear meshing with the power gear ring is rotatably arranged in the casing, a matching rotating column is arranged at one end of the matching gear, a matching connecting rod is rotatably arranged on the matching rotating column, a positioning rotating column is rotatably arranged at one end of the matching connecting rod, a matching support rod rotatably connected to the adjacent matching connecting rod is rotatably arranged at the other end of the matching connecting rod, a positioning gear connected to the grinding mechanism is arranged on the positioning rotating column, the positioning gear is meshed with the matching gear, an adjusting mechanism for adjusting the position of the positioning gear is arranged in the casing, an internal grinding mechanism for grinding the inside of the stainless steel pipe is arranged in the casing, and a pipe conveying mechanism for conveying the stainless steel pipe is arranged on the casing.

[0006] As an improvement, the grinding mechanism includes a grinding sleeve arranged at one end of the positioning gear, a supporting connecting rod is rotatably provided on the grinding sleeve, a supporting plate is rotatably connected to the supporting 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 mechanism includes an internal grinding rack and an internal grinding bracket slidably arranged on one side of the casing, an internal grinding gear is rotatably arranged on one side of the casing and meshes with the internal grinding rack and the internal grinding bracket at the same time, an internal grinding support rod is arranged on the internal grinding bracket, an internal grinding motor is arranged on the internal grinding support rod, and a grinding mechanism for grinding the inside of the stainless steel pipe is connected to the output end of the internal grinding motor.

[0008] As an improvement, the pipe delivery mechanism includes a pipe delivery slide slidably arranged on the outside of the casing, the pipe delivery slide is provided with a pipe delivery column driven to rotate by a motor, a friction strip is spirally wound on the pipe delivery column, and a pipe delivery disk driven to rotate by an adjustment mechanism is rotatably 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 is rotatably provided an adjustment worm driven by a motor, on which is rotatably provided an adjustment connecting rod rotatably connected to an adjacent matching support rod, and at one end of the adjustment connecting rod is provided a key engaged with the adjustment worm.

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

[0011] As an improvement, an inner grinding rack is slidably provided with an inner grinding jacket, and an inner grinding clamping plate is slidably provided on the inner grinding jacket. The inner grinding clamping 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 grinding sleeve, and a grinding connecting rod rotatably connected to the support plate is rotatably provided on the adjusting sleeve. The grinding connecting rod and the support connecting rod are correspondingly arranged, and an adjusting spring connected to the adjusting sleeve is sleeved on the grinding sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the grinding mechanism and the internal grinding mechanism 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, avoiding deviation in the grinding position and ensuring 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 delivery mechanism realizes the automation of stainless steel pipe delivery, which can not only smoothly deliver the stainless steel pipe into the casing, but also flexibly adjust the position of the pipe delivery slide according to stainless steel pipes of different diameters through linkage with the adjustment mechanism, thereby improving the adaptability of the pipe delivery. The various mechanisms cooperate with each other to realize integrated and efficient operation from pipe delivery to grinding. The closed casing effectively reduces dust pollution and creates a more environmentally friendly working environment. Specifically:

[0014] 1. The adjustment mechanism drives the motor to adjust the worm and the key at the end of the adjusting connecting rod to achieve millimeter-level precision adjustment, which can accurately control the amount of grinding plate pressing. During the adjustment process, the self-locking characteristics of the worm and the key maintain the constant pressure of the grinding mechanism to avoid positioning deviation caused by vibration. The mechanical hard connection promotes the synchronous change of the pressure of multiple grinding plates, eliminating manual adjustment errors. It is suitable for high-precision thin-walled tubes and special-shaped tubes processing, which improves the versatility and production efficiency of the equipment;

[0015] 2. The three groups of supporting connecting rods 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 reaction. The adjustment spring cooperates with the adjustment sleeve to make the grinding plate always fit the steel pipe to prevent over-grinding and under-grinding. The supporting connecting rods and supporting plates can adjust the angle adaptively 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 and reduce invalid friction.

[0016] 3. The internal grinding mechanism can flexibly adjust 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 clamping plate can stably clamp the steel pipe under the drive of the power component. The movable connection design between the internal grinding clamping plate and the outer wall of the steel pipe supports the continuous feeding of the steel pipe and realizes "grinding while moving". Compared with the traditional segmented grinding, the overall structure is simple, and with the help of the existing mature power components, the maintenance difficulty and cost are reduced, which can meet the inner surface grinding needs of stainless steel pipes with different diameters;

[0017] 4. The pipe feeding mechanism uses the adjustment mechanism, and the motor drives the adjusting worm to drive the adjusting worm wheel to rotate. The angle of the pipe feeding disc is deflected by adjusting the fork and the adjusting lever, so that the pipe feeding slide can be accurately displaced, and it can easily adapt to the clamping of stainless steel pipes of different diameters. The pipe feeding column is driven by a motor, and the spiral friction strip on its surface pushes 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 strip 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 The present invention is a schematic structural diagram of a positioning mechanism of a stainless steel pipe processing device.

[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 of the present invention.

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

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

[0026] Fig. 9 It is an exploded view of an internal grinding mechanism of a stainless steel pipe processing device of the present invention.

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

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

[0029] Fig.12 It is an exploded view of an adjusting mechanism of a stainless steel pipe processing device of the present invention.

[0030] As shown in the figure: 1. Casing; 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 wheel; 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 mechanism; 41. Internal grinding rack; 411. Internal grinding jacket; 412. Internal grinding clamping plate; 42. Internal grinding gear; 43. Internal grinding bracket; 44. Internal grinding support rod; 45. Internal grinding motor; 5. Pipe delivery mechanism; 51. Pipe delivery disc; 511. Pipe delivery slide; 512. Adjusting lever; 52. Pipe delivery slide; 521. Pipe delivery slide rod; 53. Pipe delivery column. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Combined with 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, the casing 1 is a hollow structure, both ends of the casing 1 are provided with openings, a grinding mechanism 3 for grinding the stainless steel pipe is provided in the casing 1, a positioning mechanism 2 for positioning the grinding mechanism 3 and driving the grinding mechanism 3 to rotate is provided in the casing 1, 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, a power gear ring 211 is provided at one end of the power sleeve 21, a matching gear 22 meshing with the power gear ring 211 is rotatably arranged in the casing 1, three groups of matching gears 22 are provided, a matching rotating column 221 is provided at one end of the matching gear 22, a matching rotating column 221 is rotatably provided with a matching gear 22 meshing with the power gear ring 211 The connecting rod 222 and the matching connecting rod 222 are L-shaped structures, and a positioning column 224 is rotatably provided at the other end of the matching connecting rod 222, and a matching support rod 223 rotatably connected to the adjacent matching connecting rod 222 is rotatably provided at one end of the matching connecting rod 222, and a matching support rod 223 rotatably connected to the adjacent matching connecting rod 222 is rotatably provided at one end of the matching connecting rod 222, and a positioning gear 225 connected to the grinding mechanism 3 is provided on the positioning column 224, and 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 casing 1, and an internal grinding mechanism 4 for grinding the inside of the stainless steel pipe is provided in the casing 1, and 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 to the inside of the casing 1 through the openings at both ends of the casing 1 to prepare for the subsequent grinding process. After that, the motor is started to drive 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 meshed with the three sets of matching gears 22, the matching gear 22 is driven to rotate around its own axis, and the rotation of the matching gear 22 drives the matching rotating column 221 to rotate synchronously;

[0034] Since the matching connecting rod 222 is an L-shaped structure, and one end is rotatably connected to the adjacent matching connecting rod 222 through the matching 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 matching 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. After that, the grinding mechanism 3 rotates at a high speed to grind the outer surface of the stainless steel pipe to remove impurities and defects on the surface to make its surface smoother. At the same time, the inner grinding mechanism 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 mechanism 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 mechanisms 3 provide balanced radial pressure to ensure consistent outer wall grinding and prevent ellipticity deviation. The inner grinding mechanism 4 adopts a central 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 integrate a dust removal interface to reduce dust pollution.

[0036] Combined with Figure 5 , Attachment Figure 6 , Attachment Fig.11 and attached Fig.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, and 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 meshing 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 inside the housing 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 the linear displacement of the key, and pushes 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 change in the swing angle of the adjustment link 23 will change the telescopic 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 characteristics of the worm and key meshing structure can fix the position of the adjustment link 23, so as to ensure that the grinding mechanism 3 maintains a constant pressure under high-speed rotation or external impact, and avoid positioning deviation 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 pipe (such as 0.2-1.5mm range), adapting to the multi-stage process requirements from rough grinding to fine polishing. The mechanical hard connection ensures the synchronous change of the pressure of multiple grinding plates 321, eliminates the error of manual point-by-point adjustment, and makes the circumferential grinding amount consistency error of the stainless steel pipe ≤5μm. The self-locking characteristics of the worm are combined with the rigid support of the adjustment bracket 241, and 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 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, a support link 311 is rotatably provided on the grinding sleeve 31, two support links 311 are grouped 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, 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, the adaptive mechanism includes an adjusting sleeve 33 slidably arranged at one end of the grinding sleeve 31, 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 with 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 matching gear 22 to drive 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 connecting rods 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, and pulling the support plate 32 outward through the grinding connecting rod 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 (such as being 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 grinding plate 321, pushing the support plate 32 to shrink in the direction of the grinding sleeve 31. The support plate 32 forces the adjusting sleeve 33 to slide axially along the grinding sleeve 31 through the grinding 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 due to 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 grinding sleeve 31, and pushing the support plate 32 outward through the grinding connecting rod 332, ensuring that the grinding plate 321 always fits the outer wall of the stainless steel pipe.

[0042] When the grinding sleeve 31 rotates, the supporting connecting rod 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 the vibration caused by the ovality or uneven surface of the stainless steel pipe. At the same time, the grinding plates 321 on each group of supporting 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 pipe to avoid grinding blind areas. 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 pipe, the spring allows a single group of grinding plates 321 to retract briefly to prevent sudden changes in grinding force from damaging equipment or workpieces.

[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 under-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 to reduce 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 makes the contact surface of the grinding plate 321 and the stainless steel pipe 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 Ra0.8μm or less. The adaptive mechanism reduces invalid 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 Figure 2 , Attachment Figure 3 , Attachment Figure 8 and attached Fig. 9 As shown, the inner grinding mechanism 4 includes an inner grinding rack 41 and an inner grinding bracket 43 which are slidably arranged on one side of the casing 1; an inner grinding gear 42 which is rotatably arranged on one side of the casing 1 and meshes with the inner grinding rack 41 and the inner grinding bracket 43 at the same time; 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 support rod 44; an output end of the inner grinding motor 45 is connected to a grinding mechanism 3 for grinding the inside of the stainless steel pipe; a front end of a grinding plate 321 of the grinding mechanism 3 is provided with an arc facing the axial direction of the inner grinding support rod 44; an inner grinding jacket 411 is slidably arranged on the inner grinding rack 41; an inner grinding splint 412 is slidably arranged on the inner grinding jacket 411; the inner grinding splint 412 is driven to move by a power component and is movably connected to the stainless steel pipe; the power component may be one of telescopic components such as a hydraulic cylinder, an air cylinder or an electric push rod; this is the current prior art and will not be described in detail here.

[0045] The working principle of the inner grinding mechanism 4: at the beginning of work, the pipe delivery mechanism 5 delivers the stainless steel pipe to a predetermined position in the casing 1, the inner grinding jacket 411 and the inner grinding clamping plate 412 cooperate, and 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, because 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 therewith 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 a high speed, and grinding 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, and can grind the pipe wall more comprehensively and meticulously;

[0046] Furthermore, the movable connection design between the inner grinding clamp 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", and the entire length of the inner wall can be processed in a single processing, which is more than 3 times more efficient than traditional segmented grinding.

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

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

[0049] After the tube-feeding carriage 52 is in place, the tube-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 tube, and the stainless steel tube is pushed into the internal grinding area of ​​the casing 1 from the feeding end at a uniform speed by using friction. When the stainless steel tube enters the grinding station, the forward speed of the tube-feeding carriage 52 is dynamically corrected (adjustable from 0.5 to 3 m / min) so that the feeding rate of the stainless steel tube is accurately matched with the cutting efficiency of the internal and external grinding mechanism 3, avoiding uneven grinding caused by too fast feeding or idling of the equipment caused by too slow grinding. If it is necessary to process special-shaped tubes or special material tubes, the friction driving force can be changed by adjusting the rotation speed of the tube-feeding column 53 (in the range of 20 to 200 rpm), and the elastic deformation of the spiral friction strip can adapt to the unevenness of the tube surface 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" driving mechanism, it can not only provide stable thrust but also avoid rigid contact to damage the surface of the stainless steel pipe. The conveying 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 surface of the slide groove 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] When the present invention is implemented, the processing parameters and equipment status are first confirmed, and the operator carefully checks the specifications of the stainless steel pipe to be processed, such as the pipe diameter, and simultaneously checks the various parts of the equipment to see if there are any loose or damaged parts, and confirms that the 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, and the worm and the key at one end of the adjustment connecting rod 23 form a worm gear meshing transmission. This transmission mode converts the rotational motion of the worm into a linear displacement of the key, pushing the adjustment connecting rod 23 to swing around the rotating shaft of the matching gear 22. Since the adjustment connecting rod 23 is rotationally connected with the adjacent matching support rod 223, 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 connecting rod 222, the three groups of positioning rotating 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 bar 521 on the pipe feeding slide 52 slides in the pipe feeding slide groove 511, and the position of the pipe feeding slide 52 is changed to meet the clamping requirements of stainless steel pipes of different diameters. Afterwards, according to the processing requirements, the suitable grinding plate 321 is selected, and the grinding plate 321 is 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 delivery mechanism 5, the motor drives the pipe delivery column 53 to rotate, and the friction strips spirally wound on the surface of the pipe delivery column 53 rotate at high speed. With the help of friction, the stainless steel pipe enters the interior of the casing 1 from the feeding end of the casing 1 at a uniform speed. The pipe delivery speed can be adjusted as needed within the range of 0.5 to 3 m / min, and the rotation speed of the pipe delivery column 53 can be adjusted within the range of 20 to 200 rpm to meet the transportation requirements of different pipes.

[0054] Start the motor of the positioning mechanism 2, 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 its own axis, the matching gear 22 drives the grinding sleeve 31 to rotate through the matching connecting rod 222 and the positioning rotating column 224, and grinds 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 mechanism 4 adopts a central positioning design to avoid uneven thickness of the inner wall caused by the deviation of the grinding head. Start the inner grinding motor 45 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, so that the pipe wall can be polished 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 send 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 whether the parts of the equipment have abnormal wear and tear. If necessary, perform maintenance and replacement in time. 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 present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope 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 inside 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) comprises 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 arranged 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 rotating column (224), the other end of the matching connecting rod (222) is rotatably provided with a matching supporting rod (223) rotatably connected to the adjacent matching connecting rod (222), the positioning rotating column (224) is provided with a positioning gear (225) connected to the grinding mechanism (3), 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 mechanism (4) for grinding the interior of the stainless steel pipe is provided in the casing (1), and a pipe conveying mechanism (5) for conveying the stainless steel pipe is provided on the casing (1).

2. A stainless steel pipe processing device according to claim 1, characterized in that: The grinding mechanism (3) comprises a grinding sleeve (31) arranged at one end of the positioning gear (225); a supporting connecting rod (311) is rotatably provided on the grinding sleeve (31); a supporting plate (32) is rotatably connected to the supporting connecting rod (311); a grinding plate (321) is connected to the supporting plate (32) via bolts; and 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: The internal grinding mechanism (4) comprises an internal grinding rack (41) and an internal grinding bracket (43) which are slidably arranged on one side of the housing (1); an internal grinding gear (42) which meshes with the internal grinding rack (41) and the internal grinding bracket (43) is rotatably arranged on one side of the housing (1); an internal grinding support rod (44) is arranged on the internal grinding bracket (43); an internal grinding motor (45) is arranged on the internal grinding support rod (44); and an output end of the internal grinding motor (45) is connected to a grinding mechanism (3) for grinding the inside of the stainless steel pipe.

4. A stainless steel pipe processing device according to claim 1, characterized in that: The pipe delivery mechanism (5) comprises a pipe delivery slide (52) slidably arranged outside the casing (1), a pipe delivery column (53) driven to rotate by a motor is provided on the pipe delivery slide (52), a friction strip is spirally wound on the pipe delivery column (53), and a pipe delivery disk (51) driven to rotate by an adjustment mechanism (24) is rotatably arranged on one side of the casing (1), and the pipe delivery disk (51) is slidably matched with the pipe delivery slide (52).

5. A stainless steel pipe processing device according to claim 4, characterized in that: The adjustment mechanism (24) comprises an adjustment bracket (241) arranged in the housing (1), an adjustment worm (242) rotatably provided on the adjustment bracket (241) and driven to rotate by a motor, an adjustment link (23) rotatably provided on one of the mating gears (22) and rotatably connected to an adjacent mating support rod (223), and a key meshing with the adjustment worm (242) is provided at one end of the adjustment link (23).

6. A stainless steel pipe processing device according to claim 5, characterized in that: The pipe delivery disc (51) is provided with a pipe delivery slot (511), the pipe delivery slot (511) is arranged correspondingly to the pipe delivery slide (52), the pipe delivery slide (52) is provided with a pipe delivery slide rod (521) slidably matched with the pipe delivery slot (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) meshing with the adjustment worm (242), and one end of the adjustment worm wheel (243) is provided with an adjustment fork (244) slidably matched with the adjustment lever (512).

7. The stainless steel pipe processing device according to claim 3, 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.

8. 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 a grinding sleeve (31); a grinding connecting rod (332) rotatably connected to the support plate (32) is rotatably arranged on the adjusting sleeve (33); the grinding 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 grinding sleeve (31).

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