Precise steel pipe orifice chamfering device

Abstract

The invention belongs to the technical field of pipe machining, and provides a precise steel pipe orifice chamfering device which comprises a base plate, a pipe placing plate and a hanging plate frame, the pipe placing plate is arranged in the middle of the top of the base plate, and the hanging plate frame is fixedly installed at the top of the base plate; a pair of wheel carriers I is mounted at the top of the pipe placing plate, driven wheels are rotationally mounted on the pair of wheel carriers I, and the pair of driven wheels are used for placing a steel pipe to be chamfered; a steel pipe rotation driving mechanism is installed on the suspension plate frame, the steel pipe rotation driving mechanism comprises a lifting air cylinder fixedly installed on the suspension plate frame, a second wheel frame is fixedly installed on an output rod of the lifting air cylinder, and a driving wheel is rotatably installed on the second wheel frame. According to the precise steel pipe orifice chamfering device provided by the scheme, the cutter on the adjustable pipe orifice chamfering mechanism can be used for chamfering the inner wall and the outer wall of the pipe orifice at the same time, so that the machining steps are reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe processing, and particularly relates to a precision steel pipe pipe orifice chamfering device. Background Art

[0002] As a commonly used pipe in production and life, steel pipes usually need to be chamfered at the pipe orifice for convenient butt joint or for safety to avoid scratching during production and processing.

[0003] However, the current chamfering methods mostly use drills or other turning equipment to perform single or separate grinding chamfering on the inside or outside of the pipe orifice, which is troublesome to operate and has low processing efficiency during processing. Summary of the Invention

[0004] The invention provides a precision steel pipe pipe orifice chamfering device, aiming to solve the problems in the above background art that the currently used pipe orifice chamfering equipment usually can only perform single or separate grinding chamfering on the inside or outside of the pipe orifice, which is troublesome to operate and has low processing efficiency during processing.

[0005] To solve the above problems, the invention is realized as follows. A precision steel pipe pipe orifice chamfering device includes: a base plate, a pipe placing plate and a suspension plate frame. The pipe placing plate is arranged at the middle position on the top of the base plate, and the suspension plate frame is fixedly installed on the top of the base plate. A pair of wheel frames I are installed on the top of the pipe placing plate, and driven wheels are rotatably installed on both of the pair of wheel frames I. The pair of driven wheels are used for placing the steel pipe to be chamfered. A steel pipe rotation driving mechanism is installed on the suspension plate frame. The steel pipe rotation driving mechanism includes a lifting cylinder fixedly installed on the suspension plate frame. A wheel frame II is fixedly installed on the output rod of the lifting cylinder. A driving wheel is rotatably installed on the wheel frame II. The driving wheel is located above the pair of driven wheels and is used for driving the rotation of the steel pipe to be chamfered placed on the pair of driven wheels. A pipe rotating motor is fixedly installed on the wheel frame II. Tapered gears I are fixedly installed on the output shaft of the pipe rotating motor and the rotating shaft of the driving wheel respectively. The two tapered gears I are meshed with each other to enable the pipe rotating motor to drive the driving wheel to rotate. Support plates located on the top of the base plate are arranged on both sides of the pipe placing plate. Transverse cylinders are fixedly installed on both of the two support plates. U-shaped mounting plates are fixedly installed on the output rods of the two transverse cylinders. Adjustable pipe orifice chamfering mechanisms are arranged on one side of the two U-shaped mounting plates where the driven wheels are located and are used for chamfering the rotating steel pipe orifice.

[0006] Preferably, the adjustable pipe orifice chamfering mechanism includes a longitudinal spacing adjustment bidirectional screw rotatably installed on the U-shaped mounting plate. Two U-shaped sliding frames are sleeved on the longitudinal spacing adjustment bidirectional screw by threads. The two U-shaped sliding frames are respectively connected to two sections of threads with opposite helix directions on the longitudinal spacing adjustment bidirectional screw, so that the longitudinal spacing adjustment bidirectional screw drives the two U-shaped sliding frames to slide close to or away from each other along the U-shaped mounting plate. An upper U-shaped assembly frame and a lower U-shaped assembly frame are respectively and fixedly installed on the two U-shaped sliding frames. Deflection shafts are rotatably installed in both the upper U-shaped assembly frame and the lower U-shaped assembly frame, and the deflection angles can be adjusted. Tool holders are fixedly sleeved on the two deflection shafts. Turning tools are detachably installed on the two tool holders by rivets. The two turning tools are respectively used for chamfering the inner side and the outer side of the steel pipe orifice.

[0007] Preferably, the adjustable pipe orifice chamfering mechanism further includes angle adjustment gears respectively and fixedly sleeved on the two deflection shafts. Adjustment sliding openings are formed in both the upper U-shaped assembly frame and the lower U-shaped assembly frame. Sliding guide plates are fixedly installed in the two adjustment sliding openings. Moving sliders are respectively sleeved on the two sliding guide plates in a sliding manner. Upper racks and lower racks are respectively slidably arranged in the upper U-shaped assembly frame and the lower U-shaped assembly frame. The upper racks and the lower racks are respectively fixedly connected to the corresponding moving sliders, so that when the moving sliders move, they drive the upper racks and the lower racks to slide up and down synchronously. The upper racks and the lower racks are respectively meshed with the corresponding angle adjustment gears, so that when the upper racks and the lower racks slide up and down, they drive the deflection shafts, the tool holders and the turning tools to adjust the chamfering angle.

[0008] Preferably, a rectangular connecting plate is slidably installed through the upper rack. The bottom of the rectangular connecting plate is fixedly connected to the top of the lower rack. A positioning bolt one for fixing the rectangular connecting plate is threadedly installed on the upper rack, so that the upper rack is connected to the rectangular connecting plate to adapt to the change of the distance between the upper U-shaped assembly frame and the lower U-shaped assembly frame.

[0009] Preferably, shaft seats are respectively and fixedly installed on the sides of the upper U-shaped assembly frame and the lower U-shaped assembly frame. A lifting screw barrel and a lifting screw are respectively rotatably installed on the shaft seats of the upper U-shaped assembly frame and the lower U-shaped assembly frame. The lifting screw barrel and the lifting screw respectively threadedly penetrate through the two moving sliders. The lifting screw barrel and the lifting screw have the same thread helix direction and are used for driving the moving sliders, the upper racks and the lower racks to slide up and down synchronously. A rectangular synchronous shaft is slidably installed through the lifting screw barrel. The bottom end of the rectangular synchronous shaft is fixedly connected to the top end of the lifting screw, so that the lifting screw barrel and the lifting screw rotate synchronously and adapt to the change of the distance between the upper U-shaped assembly frame and the lower U-shaped assembly frame.

[0010] Preferably, a connection seat is fixedly installed on the side of the upper U-shaped mounting frame. A connection strip plate is slidably installed through the connection seat, and the connection strip plate is fixedly connected to the side of the lower U-shaped mounting frame. A positioning bolt II is threadedly installed on the connection seat for positioning the connection strip plate to adapt to the adjustment of the distance between the upper U-shaped mounting frame and the lower U-shaped mounting frame.

[0011] Preferably, adjustment bolts are threadedly installed on both of the first wheel frames. A plurality of adjustment screw holes are formed in the top of the pipe placing plate for fixing the two first wheel frames with the adjustment bolts after adjusting the distance therebetween.

[0012] Preferably, a blade slot is formed in the tool rest, and the turning tool is clamped into the blade slot.

[0013] Preferably, screwing blocks are fixedly installed at the bottom end of the lifting screw rod and the top end of the longitudinal distance adjustment bidirectional screw rod. The U-shaped sliding frame is in sliding contact with the U-shaped mounting plate.

[0014] Preferably, rubber rings are provided on the surfaces of the driven wheel and the driving wheel, and the distance between the two driven wheels is smaller than the diameter of the steel pipe to be processed.

[0015] Compared with the related art, the precision steel pipe pipe orifice chamfering device provided by the present invention has the following beneficial effects: For the precision steel pipe pipe orifice chamfering device provided by this solution, the tool on the adjustable pipe orifice chamfering mechanism can chamfer the inner and outer walls of the pipe orifice simultaneously, reducing the processing steps and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view three-dimensional structure schematic diagram of a precision steel pipe pipe orifice chamfering device provided by the present invention; Figure 2 is the rear view three-dimensional structure schematic diagram of a precision steel pipe pipe orifice chamfering device provided by the present invention; Figure 3 is the front view sectional structure schematic diagram of a precision steel pipe pipe orifice chamfering device provided by the present invention; Figure 4 is Figure 2 the enlarged structure schematic diagram of part A shown in ; Figure 5 is Figure 3 the enlarged structure schematic diagram of part B shown in ; Figure 6 is Figure 3 the enlarged structure schematic diagram of part C shown in ; Figure 7 is Figure 6 the enlarged structure schematic diagram of part D shown in ; Figure 8This is a schematic structural diagram of the support plate, transverse movement cylinder and adjustable pipe orifice chamfering mechanism in the present invention; Figure 9 This is a front view sectional structural diagram of the adjustable pipe orifice chamfering mechanism in the present invention; Figure 10 This is a schematic structural diagram of the suspension plate frame, steel pipe rotation drive mechanism and steel pipe placing limit mechanism in the present invention; Figure 11 This is a schematic structural diagram of the pipe placing plate, wheel frame I, driven wheel, connecting column, lifting plate and threaded column in the present invention.

[0017] Reference numerals: 1, base plate; 2, pipe placing plate; 3, wheel frame I; 4, driven wheel; 5, suspension plate frame; 6, lifting cylinder; 7, wheel frame II; 8, driving wheel; 9, pipe rotating motor; 10, bevel gear I; 11, support plate; 12, transverse movement cylinder; 13, U-shaped mounting plate; 14, longitudinal spacing adjustment bidirectional screw; 15, U-shaped sliding frame; 16, upper U-shaped assembly frame; 17, lower U-shaped assembly frame; 18, offset shaft; 19, tool rest; 20, turning tool; 21, rivet; 22, angle adjustment gear; 23, adjustment sliding opening; 24, sliding guide plate; 25, moving slider; 26, upper rack; 27, lower rack; 28, rectangular connecting plate; 29, positioning bolt I; 30, shaft seat; 31, lifting screw barrel; 32, lifting screw; 33, rectangular synchronous shaft; 34, connecting seat; 35, connecting strip plate; 36, positioning bolt II; 37, position adjustment bolt; 38, position adjustment screw hole; 39, connecting column; 40, lifting plate; 41, threaded column; 42, shaft plate I; 43, transverse spacing adjustment bidirectional screw; 44, spacing adjustment motor; 45, shaft plate II; 46, power synchronous long cylinder; 47, bevel gear II; 48, avoidance opening; 49, rectangular long shaft; 50, power synchronous short cylinder; 51, vertical plate; 52, transmission short shaft; 53, bevel gear III; 54, pipe resisting rack; 55, shaft plate III; 56, input long shaft; 57, driving gear; 58, belt pulley; 59, synchronous belt; 60, tensioning pulley. Detailed implementation manners

[0018] Reference to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0019] An embodiment of the present invention provides a precision steel pipe orifice chamfering device, as Figure 1-11As shown in the figure, the precision steel pipe pipe-end chamfering device includes: a base plate 1, a pipe placing plate 2 and a suspension plate frame 5. The pipe placing plate 2 is arranged at the middle position on the top of the base plate 1, and the suspension plate frame 5 is fixedly installed on the top of the base plate 1. A pair of first wheel frames 3 are installed on the top of the pipe placing plate 2, and driven wheels 4 are rotatably installed on each of the pair of first wheel frames 3. The pair of driven wheels 4 are used for placing the steel pipe to be chamfered. A steel pipe rotation driving mechanism is installed on the suspension plate frame 5. The steel pipe rotation driving mechanism includes a lifting cylinder 6 fixedly installed on the suspension plate frame 5. A second wheel frame 7 is fixedly installed on the output rod of the lifting cylinder 6. A driving wheel 8 is rotatably installed on the second wheel frame 7. The driving wheel 8 is located above the pair of driven wheels 4 and is used for driving the rotation of the steel pipe to be chamfered placed on the pair of driven wheels 4. A pipe rotating motor 9 is fixedly installed on the second wheel frame 7. Conical gears 10 are fixedly installed on the output shaft of the pipe rotating motor 9 and the rotating shaft of the driving wheel 8 respectively. The two conical gears 10 are meshed with each other to enable the pipe rotating motor 9 to drive the driving wheel 8 to rotate. Adjustable pipe-end chamfering mechanisms are arranged on one side of the pair of driven wheels 4 on both sides of the pipe placing plate 2 and are used for chamfering the rotating pipe ends of the steel pipe.

[0020] In this embodiment, before use, first, the base plate 1 needs to be stably placed in the working area to ensure the stability of the entire device. Then, the steel pipe to be chamfered is placed between the pair of driven wheels 4 on the pipe placing plate 2, and the position of the steel pipe is adjusted so that it can be stably driven to rotate. At this time, the steel pipe rotation driving mechanism on the suspension plate frame 5 is in a standby state, and the lifting cylinder 6 keeps the driving wheel 8 at an appropriate position above the driven wheels 4. The pipe rotating motor 9 is ready to drive the driving wheel 8 to rotate through the meshing transmission of the conical gears 10, thereby driving the rotation of the steel pipe. At the same time, the cross-moving cylinders 12 on the support plates 11 and the adjustable pipe-end chamfering mechanisms on the U-shaped mounting plates 13 connected thereto are in the initial positions and are ready to be adjusted according to the specifications of the steel pipe and perform the chamfering operation.

[0021] During the steel pipe rotation and chamfering operation, start the pipe rotating motor 9. Through the transmission of the first bevel gear 10, the driving wheel 8 starts to rotate, causing the output rod of the lifting cylinder 6 to extend, making the driving wheel 8 contact the steel pipe and drive the steel pipe placed on the driven wheel 4 to rotate synchronously. At this time, the operator adjusts the position and angle of the adjustable pipe chamfering mechanism according to the diameter and chamfering requirements of the steel pipe to ensure that the chamfering tool can accurately contact and cut the pipe orifice of the steel pipe. After the adjustment is completed, start the transverse movement cylinder 12 to push the U-shaped mounting plate 13 and the adjustable pipe chamfering mechanism thereon towards the pipe orifice of the steel pipe until the chamfering tool on the adjustable pipe chamfering mechanism starts to contact the steel pipe and perform the chamfering operation. During the continuous rotation of the steel pipe, the chamfering tool gradually cuts the pipe orifice to form the required chamfer shape. When chamfering, the tools on the adjustable pipe chamfering mechanism can chamfer the inner and outer sides of the pipe orifice simultaneously, improving the processing efficiency and accuracy.

[0022] Through the design of automatic rotation drive and adjustable chamfering mechanism, this device realizes rapid and accurate chamfering of the pipe orifice of the steel pipe, greatly improving the processing efficiency.

[0023] The steel pipe rotation drive mechanism adopts the meshing transmission of the first bevel gear 10, ensuring the stable rotation of the steel pipe during the chamfering process, thus guaranteeing the accuracy and consistency of chamfering.

[0024] The design of the adjustable pipe chamfering mechanism enables this device to adapt to steel pipes of different diameters and specifications, improving the versatility and flexibility of the device; the tools on the adjustable pipe chamfering mechanism can chamfer the inner and outer walls of the pipe orifice simultaneously, reducing the processing steps and improving the processing efficiency.

[0025] This precision steel pipe orifice chamfering device has significant beneficial effects in improving processing efficiency, ensuring processing accuracy, enhancing adaptability, and simplifying operation.

[0026] In a further preferred embodiment of the present invention, the adjustable pipe chamfering mechanism includes a longitudinally spaced adjustable bidirectional screw 14 rotatably mounted on the U-shaped mounting plate 13. Two U-shaped sliding frames 15 are thread sleeved on the longitudinally spaced adjustable bidirectional screw 14. The two U-shaped sliding frames 15 are respectively connected to two sections of threads with opposite helix directions on the longitudinally spaced adjustable bidirectional screw 14, so that the longitudinally spaced adjustable bidirectional screw 14 drives the two U-shaped sliding frames 15 to slide close to or away from each other along the U-shaped mounting plate 13. An upper U-shaped assembly frame 16 and a lower U-shaped assembly frame 17 are respectively and fixedly mounted on the two U-shaped sliding frames 15. A deflecting shaft 18 is rotatably mounted in both the upper U-shaped assembly frame 16 and the lower U-shaped assembly frame 17, and the deflection angle can be adjusted. A tool holder 19 is fixedly sleeved on both of the two deflecting shafts 18. Two turning tools 20 are detachably mounted on the two tool holders 19 with rivets 21, and the two turning tools 20 are respectively used for chamfering the inner and outer sides of the pipe orifice of the steel pipe.

[0027] In this embodiment, first, according to the diameter of the steel pipe to be processed, the longitudinal distance between the two U-shaped sliding frames 15 is adjusted by rotating the two-way screw 14 for adjusting the longitudinal distance. Due to the design of the two sections of threads with opposite helix directions on the two-way screw 14 for adjusting the longitudinal distance, rotating this screw will drive the two U-shaped sliding frames 15 to slide along the U-shaped mounting plate 13, so as to realize the adjustment of approaching or separating, so as to adapt to steel pipes with different diameters.

[0028] Next, according to the chamfering requirements of the steel pipe nozzle, the deflection angles of the deflection shafts 18 in the upper U-shaped assembly frame 16 and the lower U-shaped assembly frame 17 are respectively adjusted. The design of the deflection shaft 18 allows flexible adjustment of the angle within a certain range to meet the requirements of different chamfering angles. After adjusting the deflection shaft 18, fix its position to ensure a stable deflection angle during the chamfering operation.

[0029] Finally, start the steel pipe rotation driving mechanism to make the steel pipe start to rotate. At the same time, start the transverse movement cylinder 12 to push the U-shaped mounting plate 13 and the adjustable nozzle chamfering mechanism thereon to move towards the steel pipe nozzle until the turning tool 20 contacts the steel pipe nozzle. During the continuous rotation of the steel pipe, the turning tool 20 gradually cuts the nozzle to form the required chamfer shape. Since turning tools 20 for inner and outer chamfers are respectively installed on the upper U-shaped assembly frame 16 and the lower U-shaped assembly frame 17, chamfering operations can be carried out on the inner and outer sides of the steel pipe nozzle simultaneously, greatly improving the processing efficiency.

[0030] Through the design of the two-way screw 14 for adjusting the longitudinal distance and the deflection shaft 18, the adjustable nozzle chamfering mechanism realizes highly flexible adjustment of different pipe diameters and chamfering angles. This design enables the same set of devices to adapt to the processing requirements of various specifications of steel pipes, thus improving the processing efficiency and flexibility.

[0031] The adjustable nozzle chamfering mechanism also realizes simultaneous chamfering of the inner and outer sides of the steel pipe nozzle. Traditional chamfering operations often require separate chamfering of the inner and outer sides, which not only increases the processing steps and time costs, but also may lead to inconsistent chamfering due to errors in the two processing processes. However, this device realizes the one-time completion of inner and outer chamfering by installing turning tools 20 for inner and outer chamfers on the same device, greatly improving the processing efficiency and accuracy. At the same time, this design also helps to reduce material waste and energy consumption during the processing.

[0032] In a further preferred embodiment of the present invention, the adjustable pipe orifice chamfering mechanism further includes angle adjusting gears 22 respectively and fixedly sleeved on the two offset shafts 18. Adjusting sliding openings 23 are formed on both the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17. Sliding guide plates 24 are fixedly installed in the two adjusting sliding openings 23. Moving sliders 25 are respectively and slidably sleeved on the two sliding guide plates 24. Upper racks 26 and lower racks 27 are respectively slidably arranged in the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17. The upper racks 26 and the lower racks 27 are respectively fixedly connected to the corresponding moving sliders 25, so that when the moving sliders 25 move, they drive the upper racks 26 and the lower racks 27 to synchronously lift and slide. The upper racks 26 and the lower racks 27 are respectively engaged with the corresponding angle adjusting gears 22, so that when the upper racks 26 and the lower racks 27 slide up and down, they drive the offset shafts 18, the tool holders 19 and the turning tools 20 to adjust the chamfering angle.

[0033] In this embodiment, the operator drives the moving slider 25 to slide on the sliding guide plate 24. This action will synchronously drive the upper rack 26 and the lower rack 27 fixedly connected to the moving slider 25 to lift and slide in the corresponding adjusting sliding openings 23. Since the upper rack 26 and the lower rack 27 are respectively engaged with the corresponding angle adjusting gears 22, the lifting and sliding of the upper rack 26 and the lower rack 27 will be converted into the rotation of the angle adjusting gears 22, thereby driving the offset shafts 18, the tool holders 19 and the turning tools 20 mounted on the tool holders 19 to adjust the angle.

[0034] During the adjustment process, the operator can accurately control the sliding distance of the moving slider 25 according to the specific chamfering requirements of the steel pipe orifice, so as to realize the fine adjustment of the rotation angle of the offset shaft 18. This design enables the turning tool 20 to contact the steel pipe orifice at different angles, meeting diverse chamfering requirements.

[0035] After the angles of the offset shaft 18, the tool holder 19 and the turning tool 20 are adjusted, start the steel pipe rotation driving mechanism to make the steel pipe start to rotate. At the same time, start the transverse movement cylinder 12 to push the U-shaped mounting plate 13 and the adjustable pipe orifice chamfering mechanism thereon towards the steel pipe orifice until the turning tool 20 contacts the steel pipe orifice and performs chamfering operation. During the continuous rotation of the steel pipe, the turning tool 20 will gradually cut the orifice at the adjusted angle to form the required chamfer shape.

[0036] This adjustable pipe orifice chamfering mechanism realizes the fine adjustment of the angles of the offset shaft 18, the tool holder 19 and the turning tool 20 by introducing components such as angle adjusting gears 22, upper racks 26 and lower racks 27. This design not only improves the flexibility of the chamfering operation, but also can meet more diverse chamfering requirements. Compared with the traditional fixed-angle chamfering mechanism, the device of the present invention shows stronger versatility and adaptability in adapting to steel pipes of different specifications and materials.

[0037] The adjustable pipe orifice chamfering mechanism realizes fine adjustment of the rotation angle of the offset shaft 18 by precisely controlling the sliding distance of the moving slider 25. This precise control helps improve the accuracy of the chamfering operation, ensuring the consistency and accuracy of the chamfer shape. At the same time, since the turning tool 20 can contact the steel pipe orifice at different angles, multiple-angle chamfering operations can be completed in one processing, thus improving the processing efficiency.

[0038] In a further preferred embodiment of the present invention, a rectangular connecting plate 28 is slidably installed through the upper rack 26. The bottom of the rectangular connecting plate 28 is fixedly connected to the top of the lower rack 27. A positioning bolt 29 for fixing the rectangular connecting plate 28 is threadedly installed on the upper rack 26 to connect the upper rack 26 with the rectangular connecting plate 28, adapting to the distance adjustment change between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17.

[0039] In this embodiment, in order to enhance the adaptability and stability of the adjustable pipe orifice chamfering mechanism, the rectangular connecting plate 28 and the positioning bolt 29 are introduced. When it is necessary to adjust the distance between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17 according to the pipe diameter of the steel pipe, the operator can first loosen the positioning bolt 29 to enable the rectangular connecting plate 28 to slide freely within the upper rack 26. Subsequently, by adjusting the positions of the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17 to change the distance between them, it can adapt to steel pipes of different pipe diameters.

[0040] After the distance adjustment is completed, the operator needs to tighten the positioning bolt 29 again to fix the position of the rectangular connecting plate 28 in the upper rack 26. This step is crucial because it ensures the stable connection between the upper rack 26 and the rectangular connecting plate 28 (and the lower rack 27 connected thereto), thus ensuring the stability and reliability of the entire adjustable pipe orifice chamfering mechanism during the chamfering operation.

[0041] During the chamfering operation, the stable connection ensures the precise transmission and coordinated movement among the upper rack 26, the lower rack 27, the angle adjustment gear 22, the offset shaft 18, the tool holder 19, and the turning tool 20. This stability not only helps improve the accuracy and consistency of the chamfering operation but also helps extend the service life of the equipment and reduce maintenance and replacement costs.

[0042] In a further preferred embodiment of the present invention, shaft seats 30 are fixedly installed on the sides of the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17. A lifting screw barrel 31 and a lifting screw rod 32 are respectively rotatably installed on the shaft seats 30 of the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17. The lifting screw barrel 31 and the lifting screw rod 32 respectively thread through the two moving sliders 25. The lifting screw barrel 31 and the lifting screw rod 32 have the same thread helix direction, which is used to drive the moving sliders 25, the upper rack 26 and the lower rack 27 to slide up and down synchronously. A rectangular synchronous shaft 33 is slidably installed through the lifting screw barrel 31. The bottom end of the rectangular synchronous shaft 33 is fixedly connected to the top end of the lifting screw rod 32, so that the lifting screw barrel 31 and the lifting screw rod 32 rotate synchronously and adapt to the change in the distance between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17.

[0043] In this embodiment, in order to further improve the adjustment convenience and stability of the adjustable pipe orifice chamfering mechanism, the lifting screw barrel 31, the lifting screw rod 32 and the rectangular synchronous shaft 33 are introduced. The operator can drive the two moving sliders 25 to slide up and down synchronously in the adjustment sliding openings 23 of the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17 by rotating the lifting screw barrel 31 or the lifting screw rod 32 that rotates synchronously with it. Since the lifting screw barrel 31 and the lifting screw rod 32 have the same thread helix direction, their rotation will produce the same lifting effect, so as to ensure that the upper rack 26 and the lower rack 27 can slide up and down synchronously.

[0044] This design not only simplifies the adjustment process, but also improves the adjustment accuracy and stability. At the same time, the introduction of the rectangular synchronous shaft 33 enables the lifting screw barrel 31 and the lifting screw rod 32 to rotate synchronously. Even when the distance between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17 changes, a stable transmission relationship can be maintained. The operator can rotate the lifting screw barrel 31 (or indirectly rotate the lifting screw rod 32 through the connected rectangular synchronous shaft 33) to achieve synchronous lifting adjustment of the moving sliders 25, the upper rack 26 and the lower rack 27.

[0045] In a further preferred embodiment of the present invention, a connecting seat 34 is fixedly installed on the side of the upper U-shaped mounting frame 16. A connecting strip plate 35 is slidably installed through the connecting seat 34. The connecting strip plate 35 is fixedly connected to the side of the lower U-shaped mounting frame 17. A positioning bolt two 36 is threadedly installed on the connecting seat 34, which is used to position the connecting strip plate 35 to adapt to the change in the distance between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17.

[0046] In this embodiment, the connecting seat 34 is fixedly installed on the side of the upper U-shaped mounting frame 16, while the connecting strip plate 35 is slidably installed through the connecting seat 34 and fixedly connected to the side of the lower U-shaped mounting frame 17. In this way, when it is necessary to adjust the distance between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17, the operator can loosen the positioning bolt two 36 so that the connecting strip plate 35 can slide freely within the connecting seat 34. By adjusting the position of the upper U-shaped mounting frame 16 or the lower U-shaped mounting frame 17, the distance between them can be changed to adapt to steel pipes of different diameters.

[0047] After the distance adjustment is completed, the operator needs to re-tighten the positioning bolt two 36 to fix the position of the connecting strip plate 35 in the connecting seat 34. This step ensures the stable connection between the upper U-shaped mounting frame 16 and the lower U-shaped mounting frame 17, thereby improving the structural stability and processing accuracy of the entire adjustable pipe orifice chamfering mechanism.

[0048] In a further preferred embodiment of the present invention, adjusting bolts 37 are threadedly installed on both of the first wheel frames 3, and a plurality of adjusting screw holes 38 are formed at the top of the pipe placing plate 2 for fixing the first wheel frames 3 with the adjusting bolts 37 after the distance between them is adjusted.

[0049] In this embodiment, the adjusting bolts 37 are threadedly installed on the first wheel frames 3, and a plurality of adjusting screw holes 38 are formed at the top of the pipe placing plate 2. When adjusting the distance, the operator can first loosen the existing adjusting bolts 37, and then move the first wheel frames 3 to the desired positions. Once the positions of the first wheel frames 3 are adjusted in place, the operator can select appropriate adjusting screw holes 38 and screw the adjusting bolts 37 into them to firmly fix the first wheel frames 3. This process can be repeated until the distance between the two first wheel frames 3 meets the requirements of the current diameter of the steel pipe.

[0050] In a further preferred embodiment of the present invention, a blade slot is formed on the tool holder 19, and the turning tool 20 is inserted into the blade slot.

[0051] In this embodiment, a blade slot is skillfully formed on the tool holder 19, and the turning tool 20 is stably connected to the tool holder 19 by being inserted into the blade slot. This design not only simplifies the installation and disassembly process of the turning tool 20 but also ensures the stability and accuracy of the turning tool 20 on the tool holder 19.

[0052] In a further preferred embodiment of the present invention, screwing blocks are fixedly installed at the bottom end of the lifting screw rod 32 and the top end of the longitudinal distance adjustment bidirectional screw rod 14, and the U-shaped sliding frame 15 is in sliding contact with the U-shaped mounting plate 13.

[0053] In this embodiment, screwing blocks are firmly installed at the bottom end of the lifting screw rod 32 and the top end of the longitudinal spacing adjustment bidirectional screw rod 14. The screwing blocks are designed to be both easy to hold and convenient to rotate.

[0054] In actual operation, the operator can easily hold the screwing block and drive the lifting screw rod 32 or the longitudinal spacing adjustment bidirectional screw rod 14 to perform lifting or spacing adjustment by rotating it.

[0055] In a further preferred embodiment of the present invention, rubber rings are provided on the surfaces of both the driven wheel 4 and the driving wheel 8, and the distance between the two driven wheels 4 is smaller than the diameter of the steel pipe to be processed.

[0056] In this embodiment, rubber rings are installed on the surfaces of both the driven wheel 4 and the driving wheel 8. This design aims to improve the grip and wear resistance of the wheels, ensuring that the steel pipe can be stably and smoothly conveyed during the processing. At the same time, the distance between the two driven wheels 4 is set to be smaller than the diameter of the steel pipe to be processed. This dimensional design enables the steel pipe to be stably placed between the two driven wheels 4, preventing deviation or shaking during the processing.

[0057] To further improve the usage effect of the present device, in addition to the above-mentioned solutions, the present solution also has the following embodiments: In another embodiment of the present invention, a plurality of connecting columns 39 are fixedly installed at the bottom of the pipe placing plate 2. The plurality of connecting columns 39 all slide through the base plate 1 and are fixedly installed with a lifting plate 40. The lifting plate 40 is located below the base plate 1. A threaded column 41 is rotatably installed on the base plate 1, and the threaded column 41 threadedly penetrates the lifting plate 40 for driving the lifting plate 40 and the pipe placing plate 2 to lift.

[0058] In this embodiment, a plurality of connecting columns 39 are fixedly installed at the bottom of the pipe placing plate 2. These connecting columns 39 slide through the base plate 1 and extend below it, and are fixedly connected to the lifting plate 40. In addition, a threaded column 41 is rotatably installed on the base plate 1, and the threaded column 41 threadedly penetrates the lifting plate 40. By rotating the threaded column 41, the lifting plate 40 and the pipe placing plate 2 above it can be driven to perform a lifting motion.

[0059] In actual operation, as the threaded column 41 rotates, the lifting plate 40 will perform a lifting motion along the axial direction of the threaded column 41. Since the connecting column 39 is fixedly connected to the lifting plate 40 and slides through the base plate 1, the pipe placing plate 2 will lift together with the lifting plate 40. This design enables the operator to easily adjust the height of the pipe placing plate 2 according to actual needs to adapt to steel pipes of different sizes or processing requirements.

[0060] In another embodiment of the present invention, a first shaft plate 42 and a spacing adjustment motor 44 are fixedly installed on the top of the base plate 1. A transverse spacing adjustment double screw 43 is rotatably installed on the first shaft plate 42. One end of the transverse spacing adjustment double screw 43 is fixedly connected to the output shaft of the spacing adjustment motor 44. The two sections of threads of the transverse spacing adjustment double screw 43 respectively thread through the two support plates 11 for adjusting the spacing between the two support plates 11 and the adjustable pipe orifice chamfering mechanism. Both of the two support plates 11 are slidably connected to the top of the base plate 1. The arrangement of the transverse spacing adjustment double screw 43 avoids the connecting column 39 and the threaded column 41.

[0061] In this embodiment, a first shaft plate 42 and a spacing adjustment motor 44 are fixedly installed on the top of the base plate 1. A transverse spacing adjustment double screw 43 is rotatably installed on the first shaft plate 42. One end of the transverse spacing adjustment double screw 43 is fixedly connected to the output shaft of the spacing adjustment motor 44. The two sections of threads of the transverse spacing adjustment double screw 43 respectively thread through the two support plates 11, and both of the two support plates 11 are slidably connected to the top of the base plate 1. By starting the spacing adjustment motor 44, the transverse spacing adjustment double screw 43 can be driven to rotate, thereby adjusting the spacing between the two support plates 11 and the adjustable pipe orifice chamfering mechanism thereon. It should be noted that the arrangement of the transverse spacing adjustment double screw 43 avoids the connecting column 39 and the threaded column 41, ensuring non-interference and smooth operation among the components.

[0062] In actual operation, the operator only needs to start the spacing adjustment motor 44 to drive the transverse spacing adjustment double screw 43 to rotate. Since the two sections of threads of the transverse spacing adjustment double screw 43 are respectively threadedly connected to the two support plates 11, as the transverse spacing adjustment double screw 43 rotates, the two support plates 11 will slide along the top of the base plate 1, thereby adjusting the spacing between them. This design enables the operator to easily adjust the position of the adjustable pipe orifice chamfering mechanism according to actual needs to adapt to steel pipes of different sizes or processing requirements.

[0063] In another embodiment of the present invention, a second shaft plate 45 is fixedly installed on the top of the base plate 1, a power synchronization long cylinder 46 is rotatably installed on the second shaft plate 45, and second bevel gears 47 are fixedly installed at the tops of both the power synchronization long cylinder 46 and the threaded column 41. The two second bevel gears 47 are meshed with each other so that when the power synchronization long cylinder 46 rotates, it drives the threaded column 41 to rotate synchronously. An avoidance opening 48 for avoiding the second bevel gear 47 is formed in the pipe placing plate 2. Rectangular long shafts 49 are rotatably installed on both of the two support plates 11. The two rectangular long shafts 49 are both slidably inserted into the power synchronization long cylinder 46, and power synchronization short cylinders 50 are slidably sleeved on the two rectangular long shafts 49. The power synchronization long cylinder 46, the rectangular long shafts 49, and the power synchronization short cylinders 50 rotate synchronously. Vertical plates 51 are fixedly installed at the bottoms of the two U-shaped mounting plates 13. The two vertical plates 51 are respectively rotatably sleeved on the two power synchronization short cylinders 50. Transmission short shafts 52 are fixedly installed at the bottoms of the two longitudinal spacing adjustment bidirectional screws 14. Third bevel gears 53 are fixedly sleeved on both the two transmission short shafts 52 and the two power synchronization short cylinders 50. The two third bevel gears 53 corresponding to the transmission short shafts 52 and the power synchronization short cylinders 50 are meshed with each other so that when one of the longitudinal spacing adjustment bidirectional screws 14 rotates, it drives the other longitudinal spacing adjustment bidirectional screw 14 and the driving threaded column 41 to rotate synchronously.

[0064] In this embodiment, a second shaft plate 45 is fixedly installed on the top of the base plate 1, and a power synchronization long cylinder 46 is rotatably installed thereon. Second bevel gears 47 are fixedly installed at the tops of both the power synchronization long cylinder 46 and the threaded column 41. The two second bevel gears 47 are meshed with each other to achieve synchronous rotation of the power synchronization long cylinder 46 and the threaded column 41. At the same time, an avoidance opening 48 for avoiding the second bevel gear 47 is formed in the pipe placing plate 2 to ensure the normal operation of the second bevel gear 47. In addition, rectangular long shafts 49 are rotatably installed on both of the two support plates 11. The two rectangular long shafts 49 are both slidably inserted into the power synchronization long cylinder 46, and power synchronization short cylinders 50 are slidably sleeved thereon. The power synchronization long cylinder 46, the rectangular long shafts 49, and the power synchronization short cylinders 50 can rotate synchronously. Vertical plates 51 are fixedly installed at the bottoms of the two U-shaped mounting plates 13. The two vertical plates 51 are respectively rotatably sleeved on the two power synchronization short cylinders 50. At the same time, transmission short shafts 52 are fixedly installed at the bottoms of the two longitudinal spacing adjustment bidirectional screws 14, and third bevel gears 53 are fixedly sleeved on both the transmission short shafts 52 and the power synchronization short cylinders 50. The meshing of these third bevel gears 53 enables one longitudinal spacing adjustment bidirectional screw 14 to drive the other longitudinal spacing adjustment bidirectional screw 14 and the threaded column 41 to rotate synchronously when it rotates.

[0065] In actual operation, the operator can drive the entire power synchronization and spacing adjustment system by rotating one of the longitudinal spacing adjustment bidirectional screws 14 or the power synchronization long cylinder 46. As the power synchronization long cylinder 46 rotates, the bevel gear 2 47 meshing therewith will drive the threaded column 41 to rotate synchronously, thereby realizing the lifting and lowering adjustment of the tube plate 2. At the same time, the rotation of the power synchronization long cylinder 46 will also be transmitted to the vertical plates 51 on the two U-shaped mounting plates 13 through the rectangular major shaft 49 and the power synchronization short cylinder 50, thereby driving the two longitudinal spacing adjustment bidirectional screws 14 to rotate synchronously, thereby realizing the longitudinal spacing adjustment between the two adjustable pipe mouth chamfering mechanisms.

[0066] In another embodiment of the present invention, the suspension plate frame 5 is provided with a steel pipe insertion limit mechanism, and the steel pipe insertion limit mechanism includes a tube-resisting rack 54 slidably mounted on the suspension plate frame 5, and the tube-resisting rack 54 is arranged corresponding to the driven wheel 4, and is used for contacting when the steel pipe is placed to avoid jumping out between the two driven wheels 4, and the tube-resisting rack 54 is staggered with the lifting trajectory of the wheel frame 2 7, and the suspension plate frame 5 is fixedly mounted with an axis plate three 55 located above the tube-resisting rack 54, and an input long shaft 56 is rotatably mounted on the axis plate three 55, and a driving gear 57 is fixedly sleeved on the input long shaft 56, and the driving gear 57 is meshed with the tube-resisting rack 54, and pulleys 58 are fixedly sleeved on the input long shaft 56 and the power synchronous long cylinder 46, and the two pulleys 58 are sleeved with the same synchronous belt 59, and a tensioning wheel 60 for tensioning the synchronous belt 59 is installed on the suspension plate frame 5.

[0067] In this embodiment, a steel pipe placement limit mechanism is added to the device to enhance the stability and safety of the steel pipe during processing. Specifically, a pipe-resisting rack 54 is slidably installed on the suspension plate frame 5, and the pipe-resisting rack 54 is arranged corresponding to the driven wheel 4, which is used to provide a resistance force when the steel pipe is placed to prevent the steel pipe from jumping out between the two driven wheels 4. Therefore, an automatic placement device or a conveyor belt can be arranged on the opening side of the suspension plate frame 5 to realize automatic feeding. In order to ensure that the pipe-resisting rack 54 does not interfere with the lifting and lowering movement of the wheel frame 2 7, it is staggered with the lifting and lowering trajectory of the wheel frame 2 7. At the same time, the shaft plate 3 55 is fixedly installed on the suspension plate frame 5, and the input long shaft 56 is rotatably installed thereon. A driving gear 57 is fixedly sleeved on the input long shaft 56, and the driving gear 57 is meshed with the pipe-resisting rack 54 to realize the driving of the pipe-resisting rack 54. In addition, a pulley 58 is fixedly mounted on the input shaft 56 and the power synchronous cylinder 46, and they are connected by the same synchronous belt 59. In order to ensure the tension of the synchronous belt 59, a tensioning wheel 60 is installed on the suspension plate frame 5.

[0068] In actual operation, when adjusting the size of the steel pipe to be placed, as the power synchronization long cylinder 46 rotates, the synchronous belt 59 will drive the input long shaft 56 to rotate through the pulley 58. Further, the driving gear 57 on the input long shaft 56 will drive the pipe-against rack 54 to slide on the suspension plate frame 5, and the contact position with the steel pipe can be adjusted. When the position is still inappropriate, the synchronous belt 59 can be removed to manually adjust the position of the pipe-against rack 54 to avoid the steel pipe being unable to accurately enter the predetermined position when automatically fed. In this solution, the contact end of the pipe-against rack 54 with the steel pipe is set to be arc-shaped, which can avoid damaging the steel pipe.

[0069] In summary, compared with the related technology, the tool on the adjustable pipe orifice chamfering mechanism of this device can chamfer the inner and outer walls of the pipe orifice simultaneously, reducing the processing steps and improving the processing efficiency.

Claims

1. A precision steel pipe chamfering device, characterized in that: include: A base plate, a tube placing plate and a suspension plate frame, wherein the tube placing plate is arranged at the middle position of the top of the base plate, and the suspension plate frame is fixedly installed on the top of the base plate; A pair of wheel frames are installed on the top of the tube plate, and driven wheels are rotatably installed on the wheel frames, and the driven wheels are used to place the steel pipes to be chamfered; The suspension plate frame is provided with a steel pipe rotation driving mechanism, and the steel pipe rotation driving mechanism comprises a lifting cylinder fixedly installed on the suspension plate frame, a wheel frame 2 is fixedly installed on the output rod of the lifting cylinder, a driving wheel is rotatably installed on the wheel frame 2, and the driving wheel is located above a pair of the driven wheels, and is used to drive and rotate the steel pipe to be chamfered placed on the pair of driven wheels, a pipe rotating motor is fixedly installed on the wheel frame 2, and a bevel gear 1 is fixedly installed on the output shaft of the pipe rotating motor and the rotating shaft of the driving wheel, and the two bevel gears 1 are meshed with each other, and are used to make the pipe rotating motor drive the driving wheel to rotate; Support plates located on the top of the base plate are provided on both sides of the tube plate, and transverse cylinders are fixedly installed on the two support plates. U-shaped mounting plates are fixedly installed on the output rods of the two transverse cylinders. The two U-shaped mounting plates are located on one side of the driven wheel and are provided with adjustable pipe mouth chamfering mechanisms for chamfering the pipe mouth of the rotating steel pipe.

2. The precision steel pipe chamfering device according to claim 1, characterized in that: The adjustable pipe mouth chamfering mechanism includes a longitudinal spacing adjustment bidirectional screw rotatably mounted on the U-shaped mounting plate, and two U-shaped slides are provided with a threaded sleeve on the longitudinal spacing adjustment bidirectional screw, and the two U-shaped slides are respectively connected to two sections of threads with opposite rotation directions on the longitudinal spacing adjustment bidirectional screw, so that the longitudinal spacing adjustment bidirectional screw drives the two U-shaped slides to slide closer or farther away along the U-shaped mounting plate, and an upper U-shaped assembly frame and a lower U-shaped assembly frame are respectively fixedly mounted on the two U-shaped slides, and a deflection shaft is rotatably mounted in the upper U-shaped assembly frame and the lower U-shaped assembly frame, and the deflection angle can be adjusted, and a tool holder is fixedly sleeved on the two deflection shafts, and a turning tool is detachably mounted on the two tool holders using rivets, and the two turning tools are respectively used to chamfer the inner side and the outer side of the steel pipe mouth.

3. The precision steel pipe chamfering device according to claim 2, characterized in that: The adjustable pipe mouth chamfering mechanism also includes angle adjustment gears fixedly mounted on the two deflection shafts, the upper U-shaped assembly frame and the lower U-shaped assembly frame are both provided with adjustment slides, sliding guide plates are fixedly installed in the two adjustment slides, and moving sliders are respectively slidably mounted on the two sliding guides, and upper racks and lower racks are respectively slidably mounted in the upper U-shaped assembly frame and the lower U-shaped assembly frame, and the upper racks and the lower racks are respectively fixedly connected to the corresponding moving sliders, so that when the moving slider moves, the upper racks and the lower racks are driven to synchronously rise and fall and slide, and the upper racks and the lower racks are respectively meshed with the corresponding angle adjustment gears, so that when the upper racks and the lower racks slide up and down, the deflection shaft, the tool holder and the turning tool are driven to adjust the chamfer angle.

4. The precision steel pipe chamfering device according to claim 3, characterized in that: A rectangular connecting plate is slidably installed in the upper rack, the bottom of the rectangular connecting plate is fixedly connected to the top of the lower rack, and a positioning bolt for fixing the rectangular connecting plate is threadedly installed on the upper rack to connect the upper rack with the rectangular connecting plate to adapt to the adjustment change of the spacing between the upper U-shaped assembly frame and the lower U-shaped assembly frame.

5. The precision steel pipe chamfering device according to claim 3, characterized in that: The sides of the upper U-shaped assembly frame and the lower U-shaped assembly frame are fixedly installed with shaft seats, and the shaft seats of the upper U-shaped assembly frame and the lower U-shaped assembly frame are respectively rotatably installed with a lifting screw barrel and a lifting screw rod, and the lifting screw barrel and the lifting screw rod respectively pass through two movable sliders with threads, and the lifting screw barrel and the lifting screw rod have the same thread rotation direction, and are used to drive the movable slider, the upper rack and the lower rack to slide and lift synchronously, and a rectangular synchronous shaft is slidably installed in the lifting screw barrel, and the bottom end of the rectangular synchronous shaft is fixedly connected to the top end of the lifting screw rod, so that the lifting screw barrel and the lifting screw rod rotate synchronously and adapt to the adjustment change of the spacing between the upper U-shaped assembly frame and the lower U-shaped assembly frame.

6. The precision steel pipe chamfering device according to claim 2, characterized in that: A connecting seat is fixedly installed on the side of the upper U-shaped assembly frame, and a connecting strip is slidably installed in the connecting seat. The connecting strip is fixedly connected to the side of the lower U-shaped assembly frame. A positioning bolt 2 is threadedly installed on the connecting seat for positioning the connecting strip to adapt to the adjustment change of the distance between the upper U-shaped assembly frame and the lower U-shaped assembly frame.

7. The precision steel pipe chamfering device according to claim 1, characterized in that: The two wheel frames are both threadedly mounted with adjustment bolts, and the top of the tube plate is provided with a plurality of adjustment screw holes for fixing the two wheel frames with adjustment bolts after adjusting the spacing between them.

8. The precision steel pipe chamfering device according to claim 2, characterized in that: The tool holder is provided with a blade slot, and the turning tool is inserted into the blade slot.

9. The precision steel pipe chamfering device according to claim 5, characterized in that: The bottom end of the lifting screw and the top end of the longitudinal spacing adjustment bidirectional screw are both fixedly mounted with screw blocks, and the U-shaped slide is in sliding contact with the U-shaped mounting plate.

10. The precision steel pipe chamfering device according to claim 1, characterized in that: The surfaces of the driven wheel and the driving wheel are both provided with rubber rings, and the distance between the two driven wheels is smaller than the diameter of the steel pipe to be processed.

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