An internal expansion flange end face processing machine

Abstract

This utility model discloses an internal expansion flange end-face processing machine belonging to the field of flange end-face processing technology. It includes a frame and a drive assembly, speed control box, tensioning assembly, guide assembly, and feed assembly mounted on the frame. The feed assembly includes a feed box with a support plate connected to it, a cutter plate connected to the support plate, and a feed shaft connected to the support plate. The feed box contains a feed transmission structure, and the cutter plate has a lifting seat threadedly connected to the feed shaft. A limiting block is located at one end of the feed shaft near the lifting seat, and the lifting seat is positioned between the limiting block and the support plate. Rotation of the feed shaft causes the lifting seat to move circumferentially. The cutter plate moves axially along the flange as the lifting seat displaces relative to the support plate. The support plate and the limiting block abut against the threaded block, effectively preventing the cutter plate and support plate from disengaging during excessive feed, thus improving the stability of the feed assembly. Furthermore, it allows direct observation of the wear condition of the lifting seat and the feed shaft, preventing cutter plate loosening due to thread wear and improving the ease of maintenance of the feed assembly.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, specifically to an internal expansion flange end face processing machine. Background Technology

[0002] Flanges are widely used as pipe connectors in large-scale power, petrochemical, shipbuilding, pharmaceutical and food industries. These devices require online flange processing during manufacturing, installation and maintenance. The flange faces are either machined on machine tools before installation for connection, or they are directly re-machined and repaired in the processing plant after deformation.

[0003] Chinese utility model patent with publication number "CN216706166U" discloses a novel flange end face repair device, including a tensioning mechanism, a power mechanism, and a cutting mechanism. The cutting mechanism is connected to the tensioning mechanism through the power mechanism, and the tensioning mechanism is connected to the flange end face. The cutting mechanism includes a guide rail seat, a radial lead screw, a power gear, a feed speed control box, and a cutter head. The cutter head has a sliding groove, and a threaded block is hinged in the sliding groove. The feed lead screw and threaded block on the gear assembly are threadedly connected. Rotating the feed lead screw causes the threaded block to move relative to the feed lead screw, thereby displacing the cutter head relative to the feed speed control box.

[0004] However, the aforementioned flange end face repair device still has the following drawbacks:

[0005] First, the cutter head and the feed speed control box are connected to the threaded block by the feed screw. There are no limit structures at both ends of the cutter head and the feed speed control box. Excessive rotation of the feed screw can easily cause the cutter head to detach from the feed speed control box, resulting in the cutter head falling and being damaged by impact.

[0006] Secondly, the threads of the threaded block will wear down during long-term use. Since the feed speed control box of the cutter head encloses the feed screw and the threaded block, when the threads on the threaded block and the feed screw are severely worn, and the threads can no longer mesh with the feed screw, the cutter head will slide relative to the feed speed control box. The cutting tool will not be able to fit against the flange end face, resulting in poor stability of the cutting mechanism. At the same time, since the threads are located inside the cutter head and the feed screw is covered by the cutter head and the feed speed control box, when the feed screw and the cutter head become loose, the cutter head needs to be disassembled to observe the internal wear, making maintenance inconvenient.

[0007] Therefore, it is necessary to improve upon the aforementioned shortcomings. Utility Model Content

[0008] The purpose of this invention is to provide an internal expansion flange end face machining machine with stable feed and high turning accuracy, so as to solve the above-mentioned problems existing in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an internal expansion flange end face processing machine, including a frame and a drive assembly, speed control box, tensioning assembly, guide assembly and feed assembly mounted on the frame. The feed assembly includes a feed box, a support plate is provided on the side of the feed box away from the guide assembly, a blade plate is slidably connected to the support plate, and a feed shaft is rotatably connected to the support plate. The feed box is provided with a feed transmission structure for driving the feed shaft to rotate. The feature is that: a lifting seat is provided at the end of the blade plate, the lifting seat is threadedly connected to the feed shaft, a limiting block is provided at the end of the feed shaft near the lifting seat, and the lifting seat is located between the limiting block and the support plate.

[0010] By adopting the above technical solution: when the feed shaft rotates, the lifting seat moves up and down relative to the feed shaft. The cutter plate moves with the lifting seat relative to the support plate, allowing the cutting tool on the cutter plate to feed axially along the flange. When the cutter plate reaches its limit position in the axial feed, the support plate and the limiting block will abut against the threaded block, effectively preventing the cutter plate and support plate from disengaging during excessive feed, thus improving the stability of the feed assembly. In addition, since the lifting seat is hinged to the top of the cutter plate and the threaded part of the feed shaft is on the outside of the support plate, the wear condition of the lifting seat and the feed shaft can be directly observed, avoiding tool loosening due to thread wear and improving the convenience of maintenance of the feed assembly.

[0011] The aforementioned internal expansion flange end face processing machine can be further configured as follows: a sliding block is provided on the side of the support plate near the blade plate, the blade plate is provided with a sliding groove that slides with the sliding block, a guide rail surface is provided on the side of the sliding block parallel to the central axis of the feed shaft, the guide rail surface is obliquely arranged towards the side away from the center of the sliding block, the sliding groove is provided with a guide surface parallel to the guide rail surface, and the guide surface slides with the guide rail surface.

[0012] By adopting the above technical solution, the sliding block and the sliding groove cooperate with each other, which effectively improves the stability of the sliding connection between the support plate and the blade plate. At the same time, the guide rail surface is set at an angle to the sliding block, the sliding block is trapezoidal, and the short base of the trapezoidal sliding block is connected to the support plate. The sliding groove slides with the guide rail surface through the guide surface set parallel to the guide rail surface, which limits the vertical direction of the blade plate and the support plate while improving the guiding ability of the sliding block and the sliding groove to the guide plate. The connection between the blade plate and the support plate is smoother.

[0013] The aforementioned internal expansion flange end face processing machine can be further configured as follows: the blade side wall is provided with a number of spaced-apart set holes, the set holes penetrate the guide surface and communicate with the sliding groove, the set holes are threaded with a set rod, the end of the set rod is provided with a set handle, the outside of the set handle is extended with a swinging part, and the set handle is used to rotate the set rod to move the set rod in the set hole.

[0014] By adopting the above technical solution: the position of the setter rod in the setter hole can be adjusted by rotating the setter handle. When the end of the setter rod abuts against the side of the sliding block, the setter rod squeezes the sliding block, preventing the cutter plate from moving relative to the support plate. When no feed is required, the relative position of the support plate and the cutter plate can be effectively fixed, maintaining the turning depth of the feed assembly.

[0015] The aforementioned internal expansion flange end face processing machine can be further configured such that: a wear-resistant plate is provided between the guide surface and the guide rail surface, with one side of the wear-resistant plate abutting against the guide surface and the other side slidingly engaging with the guide rail surface.

[0016] By adopting the above technical solution, the wear-resistant plate can fill the gap between the sliding groove and the sliding block, improve the tightness of the connection between the blade plate and the support plate, and reduce the wear of the guide surface and guide rail surface during sliding. When the wear-resistant plate is severely worn, replacing the wear-resistant plate can restore the sliding ability between the blade plate and the support plate, effectively improving the service life of the support plate and the blade plate.

[0017] The aforementioned internal expansion flange end face processing machine can be further configured as follows: a fixing hole is provided on the limiting block along the central axis of the feed shaft, the limiting block passes through the fixing hole and is mounted on the feed shaft, and a positioning hole is provided on the side wall of the limiting block to connect with the fixing hole, the positioning hole being used for the installation and positioning of the limiting block.

[0018] By adopting the above technical solution, the positioning hole and the feed shaft cooperate to fix the limit block on the feed shaft, so that the limit block can maintain a stable relative position. In addition, the position of the limit block on the feed shaft can be adjusted by loosening the fixing bolt in the positioning hole, thereby adjusting the lifting range of the lifting seat. It can be applied to gaps of various sizes, improving the applicability of the feed assembly.

[0019] The aforementioned internal expansion flange end face processing machine can be further configured as follows: a feed disc is also hinged to the end of the feed shaft, a positioning hole is provided in the middle of the feed disc, a feed mark is provided on the end face of the feed disc around the positioning hole, and a feed handle is also hinged to the end face of the feed disc, the feed handle is used to drive the feed shaft to rotate circumferentially.

[0020] By adopting the above technical solution, manual feeding of the feeding component can be achieved by rotating the feeding handle on the feeding disc, while the positioning hole on the feeding disc provides support for the installation and fixation of the feeding disc, which can effectively prevent the feeding disc from rotating relative to the feeding shaft. In addition, during manual feeding, the feeding distance of the feeding component can be precisely controlled by observing the feeding mark on the end face of the feeding disc, so as to achieve precise fine adjustment of the feeding shaft.

[0021] The aforementioned internal expansion flange end face processing machine can be further configured such that: hinge grooves are provided on both sides of the blade plate, a lathe tool is hinged in one hinge groove, and a tool holder is hinged in the other hinge groove. The tool holder includes a mounting part and a fixing part, and the fixing part is provided with a fixing groove, so that the lathe tool can be hinged in the fixing groove.

[0022] By adopting the above technical solution, the cutting tool is hinged in the hinge groove and can slide stably with the tool plate. When the cutting tool still cannot contact the flange end face even in the extreme feed state of the feed assembly, by hinged the mounting part of the tool holder in the hinge groove and the cutting tool in the fixing groove of the fixing part, the distance between the cutting tool and the tool plate can be effectively extended, so that the cutting tool can fit against the flange end face. At the same time, the turning depth of the cutting tool can be further changed, and the reusability and applicability of the tool plate are improved.

[0023] The aforementioned internal expansion flange end face processing machine can be further configured as follows: a mounting shaft hole is provided through the support plate, the feed shaft is rotatably located in the mounting shaft hole, a mounting base plate for fixing the feed shaft is hinged to the bottom of the support plate, a mounting groove is provided at the end of the support plate away from the mounting base plate at the mounting shaft hole, a mounting seat is rotatably connected to the feed shaft, the mounting seat is hinged in the mounting groove, and a mounting notch is provided on the side wall of the mounting groove for inserting the mounting seat into the mounting groove.

[0024] By adopting the above technical solution: the feed shaft passes through the mounting shaft hole from the bottom of the support plate, and is installed in the mounting shaft hole by the mounting seat, so that the feed shaft can maintain a stable relative position in the support plate. At the same time, the mounting base plate abuts against the end of the feed shaft, which can effectively prevent the feed shaft rotation from being polarized and improve the stability of the feed shaft rotation. In addition, the feed handle hinged to the limit block can manually adjust the turning depth of the turning tool when there is only a slight gap between the turning tool and the flange end face, avoiding turning the turning tool too deep or too shallow.

[0025] The aforementioned internal expansion flange end face processing machine can be further configured as follows: the feed box has a mounting hole, the support plate has a mounting block on the side near the feed box, the support plate is rotatably connected to the feed box by inserting the mounting block into the mounting hole, the mounting block has a rotating groove on its periphery, the mounting block has a rotating bearing that is linked to the transmission structure, and the side of the feed box has a positioning pin connected to the mounting hole, the positioning pin is inserted into the rotating groove to restrict the rotation of the support plate and the feed box.

[0026] By adopting the above technical solution: the mounting block is inserted into the mounting hole to achieve a rotatable connection between the support plate and the tool feed box. The mounting block and the rotary bearing allow the support plate and the tool plate to rotate relative to the tool feed box, thereby changing the tool tilt angle to meet different turning needs. After rotating to the specified angle, tightening the locating pins on both sides causes the ends of the locating pins to engage in the rotating grooves. The locating pins abut against the mounting block, thus maintaining the relative position stability of the support plate and the tool feed box.

[0027] The aforementioned internal expansion flange end face processing machine can be further configured as follows: the feed shaft is fixed with a rotating drum that is linked to the transmission structure, the feed shaft is provided with a bushing for supporting the rotating drum at one end near the rotating drum, and the feed shaft is also provided with a mounting bearing that abuts against the bushing and the opposite end of the rotating drum.

[0028] By adopting the above technical solution: the transmission gear shaft rotates with the guide assembly, driving the rotary drum to rotate, which in turn drives the feed shaft to rotate, realizing the automatic feed of the feed assembly. In addition, the bushing can support the rotary drum to keep its position fixed relative to the feed shaft. At the same time, bearings are respectively installed at the end of the rotary drum away from the bushing and the end of the bushing relative to the rotary drum. This can prevent the rotary drum and the feed shaft from experiencing polarization friction on the inner wall of the mounting shaft hole when rotating in the mounting shaft hole, which would cause wear and shaking, thus improving the stability of axial feed.

[0029] The beneficial effects of this utility model are as follows:

[0030] First, the tool plate and the support plate work together with the feed shaft and the lifting seat to allow the cutting tool assembly to feed along the flange axis. The guide assembly drives the feed transmission structure to rotate, causing the feed shaft to rotate circumferentially within the mounting shaft hole. The lifting seat moves on the feed shaft, causing the tool plate to shift relative to the support plate. A limit block and a feed handle are provided at the end of the feed shaft. Compared with the method of setting a slider and a feed screw between the tool plate and the support plate, the lifting seat can be stopped by the support plate and the limit block when the feed reaches the limit position, preventing the tool plate from overfeeding relative to the support plate and falling off. At the same time, the sliding block of the support plate cooperates with the sliding groove of the tool plate to prevent the tool plate from falling off perpendicular to the support plate and guides the tool plate to keep the feed on the same axis. In addition, when the gap between the cutting tool and the flange end face is too small, the feed handle on the limit block can manually rotate the feed shaft, thereby realizing manual feed of the cutting tool and improving the accuracy of the feed.

[0031] Secondly, the transmission structure is linked with the rotary drum, enabling the feed shaft to rotate stably. At the same time, the support plate is rotatably connected to the feed box through the mounting block in the mounting hole, and the rotation capability of the support plate is improved by the rotary bearing. The tilt angle of the cutting tool contact with the flange end face can be adjusted. After adjusting to the specified angle, tightening the positioning pin can keep the relative position of the support plate and the feed box stable, thus improving the applicability of the cutting tool assembly.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the internal expansion flange end face processing machine of this utility model;

[0034] Figure 2 This is a schematic diagram of the feed assembly of this utility model;

[0035] Figure 3 This is a cross-sectional schematic diagram of the feed assembly of this utility model;

[0036] Figure 4 This is a schematic diagram showing the connection between the pallet and the blade of this utility model;

[0037] Figure 5This is a schematic diagram showing the connection between the feed shaft and the transmission structure of this utility model;

[0038] Label annotations: 1. Frame; 2. Drive assembly; 3. Speed ​​control box; 4. Tensioning assembly; 5. Guide assembly; 6. Feed assembly; 61. Feed box; 61. Threaded sleeve; 611. Positioning pin; 612. Mounting hole; 613. Transmission structure; 62. Support plate; 63. Sliding block; 631. Guide rail surface; 632. Mounting shaft hole; 633. Mounting base plate; 634. Mounting block; 635. Rotary groove; 636. Rotary bearing; 637. Mounting groove; 638. Mounting notch; 639. Tool plate; 641. Lifting seat; 642. Sliding groove. Guide surface 643, wear-resistant plate 644, set hole 645, set rod 646, set handle 647, swing component 648, hinge groove 649, cutting tool 65, feed shaft 66, limit block 661, fixing hole 662, rotating drum 663, bushing 664, mounting bearing 665, mounting base 666, feed disc 67, feed handle 671, feed mark 672, positioning hole 673, tool holder 68, mounting part 681, fixing part 682, fixing groove 683, counterweight assembly 7. Detailed Implementation

[0039] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] like Figure 1 The internal expansion flange end face processing machine shown includes a frame 1 and a drive assembly 2, a speed control box 3, a tensioning assembly 4, a guide assembly 5, and a feed assembly 6 disposed on the frame 1. The frame is also provided with a counterweight assembly 7 for balancing the weight. The drive assembly 2, the speed control box 3, the tensioning assembly 4, the guide assembly 5, and the counterweight assembly 7 are all prior art and therefore will not be described in detail in this embodiment.

[0041] like Figures 2 to 5The feed assembly 6 shown includes a feed box 61. A support plate 63 is provided on the side of the feed box 61 away from the guide assembly 5. A blade plate 64 is slidably connected to the support plate 63. A feed shaft 66 is rotatably connected to the support plate 63. A transmission structure 62 for driving the feed shaft 66 to rotate is provided inside the feed box 61. A lifting seat 641 is provided at the end of the blade plate 64. The lifting seat 641 is threadedly connected to the feed shaft 66. A limiting block 661 is provided at the end of the feed shaft 66 near the lifting seat 641. The lifting seat 641 is located between the limiting block 661 and the support plate 63. The feed box 61 is equipped with a threaded sleeve 611, which drives the feed box 61 to feed radially along the flange end face. The transmission structure 62 drives the feed shaft 66 to rotate. Since the feed shaft 66 is rotatably mounted inside the support plate 63, the lifting seat 641 moves up and down relative to the feed shaft 66. The cutter plate 64 moves with the lifting seat 641 relative to the support plate 63, causing the cutting tool 65 on the cutter plate 64 to feed axially along the flange. When the cutter plate 64 reaches its limit position in the axial feed, the support plate 63 and the limiting block 661 abut against the threaded block, effectively preventing the cutter plate 64 and the support plate 63 from disengaging during excessive feed, thus improving the stability of the feed assembly 6. In addition, since the lifting seat 641 is hinged to the top of the cutter plate 64 and the threaded part of the feed shaft 66 is on the outside of the support plate 63, the wear condition of the lifting seat 641 and the feed shaft 66 can be directly observed, avoiding loosening of the cutting tool 65 due to thread wear, thus improving the convenience of maintenance of the feed assembly 6.

[0042] The pallet 63 is provided with a sliding block 631, and the blade 64 is provided with a sliding groove 642 that is slidably connected to the sliding block 631. The sliding block 631 is provided with a guide surface 632 at an angle on its side. The distance between the connection between the guide surface 632 and the pallet 63 and the central axis of the sliding block 631 is less than the distance between the end of the guide surface 632 away from the pallet 63 and the central axis of the sliding block 631. The sliding groove 642 is provided with a guide surface 643 that is slidably engaged with the guide surface 632. The sliding block 631 and the sliding groove 642 cooperate with each other to effectively improve the sliding connection between the support plate 63 and the blade plate 64. At the same time, the sliding block 631 is trapezoidal in shape through the guide rail surface 632, with the short base of the trapezoid connected to the support plate 63. The guide rail surface 632 is set at an angle to the outer side of the support plate 63. The sliding groove 642 fits against the guide rail surface 632 through the guide surface 643, limiting the vertical direction of the blade plate 64 and the support plate 63. This also improves the guiding ability of the sliding block 631 and the sliding groove 642 for the blade plate 64 and enhances the sliding stability of the blade plate 64 and the support plate 63.

[0043] The side wall of the blade 64 is connected to the sliding groove 642 and has several spaced locking holes 645. The locking holes 645 are internally threaded with locking rods 646. The end of the locking rod 646 is hinged to a locking handle 647 for rotating the locking rod 646. A swing member 648 extends outward from the locking handle 647. The end of the locking rod 646 can abut against the side wall of the sliding block 631 to fix the blade 64 and the support plate 63 relative to each other. A wear-resistant plate 644 is also provided between the sliding block 631 and the sliding groove 642. The swing member 648 extends the lever arm of the swing handle 647, making it easier and more convenient to rotate the locking rod 646 when the locking handle 647 rotates the locking rod 646. The position of the locking rod 646 in the locking hole 645 can be adjusted by rotating the locking handle 647. When the end of the locking rod 646 abuts against the side of the sliding block 631, the locking rod 646 presses the sliding block 631, preventing the cutter plate 64 from moving relative to the support plate 63. When no feed is required, the relative position of the support plate 63 and the cutter plate 64 can be effectively fixed to maintain the turning depth of the feed assembly 6. In addition, the wear-resistant plate 644 passes between the sliding groove 642 and the sliding block 631, which can fill the gap between the sliding groove 642 and the sliding block 631 and reduce the wear of the sliding block 631 when sliding relative to the sliding groove 642, thereby improving the service life of the support plate 63 and the cutter plate 64.

[0044] A fixing hole 662 is provided in the middle of the limiting block 661, through which the limiting block 661 passes on the feed shaft 66. A positioning hole 673 is provided on the side of the limiting block 661, which is connected to the fixing hole 662. The positioning hole 673 is used for the installation and positioning of the limiting block 661. The positioning hole 673 cooperates with the feed shaft 66 to fix the limiting block 661 on the feed shaft 66, so that the limiting block 661 can maintain a stable relative position. In addition, by loosening the fixing bolt in the positioning hole 673, the position of the limiting block 661 on the feed shaft 66 can be adjusted, thereby adjusting the lifting range of the lifting seat 641. This allows it to be used in various gaps of different sizes, improving the applicability of the feed assembly 6.

[0045] A feed disc 67 is hinged to the end of the feed shaft 66. A positioning hole 673 is provided in the center of the feed disc 67. A feed mark 672 is provided on the peripheral end face of the feed disc 67 around the positioning hole 673. A feed handle 671 is also hinged to the end face of the feed disc 67, which is used to drive the feed shaft 66 to rotate circumferentially. Rotating the feed handle 671 on the feed disc 67 enables manual feed of the feed assembly 6. The positioning hole 673 on the feed disc 67 provides support for its installation and fixation, effectively preventing the feed disc 67 from rotating relative to the feed shaft 66. Furthermore, during manual feed, the feed distance of the feed assembly 6 can be precisely controlled by observing the feed mark 672 on the end face of the feed disc 67, enabling precise fine-tuning of the feed shaft 66.

[0046] The cutter plate 64 has hinge slots 649 on both sides. A turning tool 65 is hinged in one hinge slot 649, and a tool holder 68 is hinged in the other hinge slot 649. The tool holder 68 includes a mounting part 681 and a fixing part 682. The fixing part 682 has a fixing groove 683, and the turning tool 65 can be hinged in the fixing groove 683. The turning tool 65 is hinged in the hinge slot 649 and can slide stably with the cutter plate 64. When the turning tool 65 still cannot contact the flange end face even in the extreme feed state of the feed assembly 6, by hinged the mounting part 681 of the tool holder 68 in the hinge slot 649 and the turning tool 65 in the fixing groove 683 of the fixing part 682, the distance between the turning tool 65 and the cutter plate 64 can be effectively extended, so that the turning tool 65 can fit against the flange end face. At the same time, the turning depth of the turning tool 65 can be further changed, improving the reusability and applicability of the cutter plate 64.

[0047] The support plate 63 has a through-hole 633 for mounting shaft 633. The feed shaft 66 is rotatably disposed in the mounting shaft hole 633. The bottom of the support plate 63 is hinged to a mounting base plate 634 for fixing the feed shaft 66. The support plate 63 has a mounting groove 638 at the end of the mounting shaft hole 633 away from the mounting base plate 634. The feed shaft 66 is rotatably connected to a mounting seat 665. The mounting seat 665 is hinged in the mounting groove 638. The side wall of the mounting groove 638 has a mounting notch 639 for inserting the mounting seat 665 into the mounting groove 638. The feed shaft 66 passes through the bottom of the support plate 63 into the mounting shaft hole 633, and is installed in the mounting shaft hole 633 by the mounting seat 665. The mounting notch 639 can enlarge the mounting groove 638, so that a larger mounting seat 665 can also pass into the mounting groove 638, improving the adaptability of the mounting groove 638 to the mounting seat 665. The mounting seat 665 ensures that the feed shaft 66 can maintain a stable relative position within the support plate 63. At the same time, the mounting base plate 634 abuts against the end of the feed shaft 66, which can effectively prevent the feed shaft 66 from being polarized during rotation and improve the stability of the feed shaft 66's rotation. In addition, the feed handle 671 hinged to the limit block 661 can manually adjust the turning depth of the cutting tool 65 when there is only a slight gap between the cutting tool 65 and the flange end face, avoiding the cutting tool 65 from turning too deep or too shallow.

[0048] The feed box 61 has a mounting hole 613. The support plate 63 has a mounting block 635 on the side near the feed box 61. The support plate 63 is rotatably connected to the feed box 61 by inserting the mounting block 635 into the mounting hole 613. The mounting block 635 has a rotation groove 636 on its periphery. The mounting block 635 has a rotation bearing 637 that is linked to the transmission structure 62. The side of the feed box 61 is connected to the mounting hole 613 and has a positioning pin 612. The positioning pin 612 is inserted into the rotation groove 636 to restrict the rotation of the support plate 63 and the feed box 61. The mounting block 635 is inserted into the mounting hole 613 to achieve a rotatable connection between the support plate 63 and the feed box 61. The mounting block 635 and the rotary bearing 637 enable the support plate 63 and the tool plate 64 to rotate relative to the feed box 61, thereby changing the tilt angle of the cutting tool 65 to meet different turning needs. After rotating to the specified angle, tighten the locating pins 612 on both sides so that the ends of the locating pins 612 are engaged in the rotating groove 636. The locating pins 612 abut against the mounting block 635, thus keeping the relative position of the support plate 63 and the feed box 61 stable.

[0049] The feed shaft 66 is fixed with a rotating drum 663 that is linked to the transmission structure 62. A bushing 664 for supporting the rotating drum 663 is provided at the end of the feed shaft 66 near the rotating drum 663. The feed shaft 66 also has a mounting bearing 665 that abuts against the opposite end of the bushing 664 and the rotating drum 663. As the guide assembly rotates, the transmission gear shaft drives the rotating drum to rotate, which in turn drives the feed shaft to rotate, realizing automatic feed of the feed assembly. Furthermore, the bushing supports the rotating drum, maintaining its fixed position relative to the feed shaft. Simultaneously, mounting bearings are provided at the end of the rotating drum away from the bushing and at the end of the bushing opposite the rotating drum, respectively. This prevents wear and shaking caused by polarized friction against the inner wall of the mounting shaft hole when the rotating drum and feed shaft rotate within the mounting shaft hole, thus improving the stability of axial feed.

[0050] The working principle of this utility model is as follows: The tensioning component 4 abuts against the inner wall of the flange through the abutment block on the screw, fixing the processing machine to the flange end face. The drive component 2 drives the frame 1 to rotate as a whole. The frame 1 drives the gear inside the speed control box 3 to rotate, thereby causing the transmission shaft of the guide component 5 to rotate. The transmission shaft drives the feed transmission structure 62 to rotate, thereby driving the rotating drum 663 on the feed shaft 66 to rotate. The lifting seat 641 moves along the central axial direction of the feed shaft 66, causing the tool plate 64 to slide relative to the support plate 63, changing the distance between the cutting tool 65 on the tool plate 64 and the flange end face. When there is only a slight gap between the cutting tool 65 and the flange end face, the tool plate 64 can be moved again by manually rotating the feed handle 671 at the end of the feed shaft 66, so that the cutting tool 65 fits against the flange end face. The cutting depth of the cutting tool is precisely controlled by the feed mark 672 on the end face of the feed disc 67.

Claims

1. An internal expansion flange end face processing machine, comprising a frame and a drive assembly, a speed control box, a tensioning assembly, a guide assembly, and a feed assembly mounted on the frame, wherein the feed assembly includes a feed box, a support plate is provided on the side of the feed box away from the guide assembly, a cutter plate is slidably connected to the support plate, a feed shaft is rotatably connected to the support plate, and a feed transmission structure for driving the feed shaft to rotate is provided inside the feed box, characterized in that: The blade end is provided with a lifting seat, which is threadedly connected to the feed shaft. A limiting block is provided at one end of the feed shaft near the lifting seat, and the lifting seat is located between the limiting block and the support plate.

2. The inside-rising flange face-machining machine according to claim 1, characterized by: The support plate has a sliding block on the side near the blade plate. The blade plate has a sliding groove that slides with the sliding block. The side of the sliding block has a guide surface parallel to the central axis of the feed shaft. The guide surface is obliquely oriented away from the center of the sliding block. The sliding groove has a guide surface parallel to the guide surface. The guide surface slides with the guide surface.

3. An inside-rising flange face-machining machine according to claim 2, characterized in that: The blade sidewall has several spaced-apart locking holes. The locking holes penetrate the guide surface and communicate with the sliding groove. A locking rod is threaded into the locking hole. A locking handle is provided at the end of the locking rod. A swinging member extends outward from the locking handle. The locking handle is used to rotate the locking rod to move the locking rod within the locking hole.

4. The inside-rising flange face-machining machine of claim 3, wherein: A wear-resistant plate is provided between the guide surface and the guide rail surface. One side of the wear-resistant plate abuts against the guide surface, and the other side slides with the guide rail surface.

5. The inside-rising flange face-machining machine of claim 1, wherein: The limiting block has a fixing hole along the central axis of the feed shaft. The limiting block passes through the fixing hole onto the feed shaft. The side wall of the limiting block has a positioning hole that communicates with the fixing hole. The positioning hole is used for the installation and positioning of the limiting block.

6. An inside-rising flange face-machining machine according to claim 5, characterized in that: The feed shaft is also hinged to a feed disc, which has a positioning hole in the middle. The feed disc has a feed mark on the side surface of the positioning hole. The feed disc also has a feed handle hinged to the end face of the feed disc. The feed handle is used to drive the feed shaft to rotate circumferentially.

7. An inside-rising flange face-machining machine according to claim 6, characterized in that: The blade plate has hinge slots on both sides. A lathe tool is hinged in one hinge slot and a tool holder is hinged in the other hinge slot. The tool holder includes a mounting part and a fixing part. The fixing part has a fixing slot, and the lathe tool can be hinged in the fixing slot.

8. The inside-rising flange face-machining machine of claim 1, wherein: The support plate has a through-hole for mounting the shaft, and the feed shaft is rotatably mounted in the mounting shaft hole. The bottom of the support plate is hinged to a mounting base plate for fixing the feed shaft. The support plate has a mounting groove at the end away from the mounting base plate from the mounting shaft hole. The feed shaft is rotatably connected to a mounting seat, which is hinged in the mounting groove. The side wall of the mounting groove has a mounting notch for inserting the mounting seat into the mounting groove.

9. An inside-rising flange face-machining machine according to claim 8, characterized in that: The feed box has a mounting hole, and the support plate has a mounting block on the side near the feed box. The support plate is rotatably connected to the feed box by inserting the mounting block into the mounting hole. The mounting block has a rotation groove on its periphery and a rotation bearing that is linked to the transmission structure inside the mounting block. The side of the feed box has a positioning pin connected to the mounting hole. The positioning pin is inserted into the rotation groove to restrict the rotation of the support plate and the feed box.

10. The inside-rising flange face-machining machine of claim 9, wherein: The feed shaft is fixed with a rotating drum that is linked to the transmission structure. The feed shaft is provided with a bushing for supporting the rotating drum at one end near the rotating drum. The feed shaft is also provided with a mounting bearing that abuts against the bushing and the opposite end of the rotating drum.

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