Flange rolling ring mill roll gap automatic adjusting mechanism

Abstract

The application discloses a flange ring rolling mill roll gap automatic adjusting mechanism and relates to the technical field of ring rolling mills.The flange ring rolling mill roll gap automatic adjusting mechanism comprises a mounting frame, a core roller rotatably arranged on the mounting frame, a rolling mechanism arranged on the mounting frame and corresponding to the core roller and used for rolling a workpiece on the core roller, and an external sensing mechanism arranged on the mounting frame and used for detecting the outer diameter size of the workpiece and controlling the rolling mechanism to roll the workpiece on the core roller.Through pushing the U-shaped seat to move by the feeding assembly, the internal detection roller can be moved to the inner side of the workpiece, and the feeding assembly can unlock the positioning assembly while pushing the U-shaped seat, so that the feeding assembly can drive the U-shaped seat and the internal detection roller on the U-shaped seat to fall, and the internal detection roller can be in contact with the inner wall of the workpiece; with the workpiece becoming larger, the internal detection roller, the U-shaped seat and the feeding assembly are all moved downward until the internal sensing mechanism detects that the feeding assembly falls to the preset position, and then the rolling mechanism can be controlled to stop rolling the workpiece.

Description

Technical Field

[0001] This invention belongs to the field of ring rolling mill technology, and particularly relates to an automatic adjustment mechanism for the gap between the rolls of a flange ring rolling mill. Background Technology

[0002] Ring rolling mills are precision plastic forming equipment specifically designed for ring forgings. They utilize the coordinated operation of a main rolling roller, core roller, guide roller, and axial compaction mechanism to continuously and progressively roll ring blanks at high or room temperature in both radial and axial directions. During the rolling process, the blank undergoes continuous plastic deformation under the constraint of the roller system, gradually completing diameter expansion, thickness reduction, rounding, and shaping, ultimately yielding a ring-shaped workpiece with uniform dimensions, regular contours, and a dense microstructure. Compared to traditional processes such as free forging, ring rolling offers smaller machining allowances, higher material utilization, and effectively refines metal grains and improves material fiber structure, significantly enhancing the overall mechanical properties and structural stability of the ring. It also boasts advantages such as high forming efficiency, good product consistency, and suitability for large-scale continuous production. Currently, ring rolling mills are widely used in the forging of various high-end ring components, including bearing rings, large wind turbine flanges, engineering machinery gear rings, pressure vessel rings, and aerospace precision ring components. It is an indispensable core forming equipment in the fields of precision forging and high-end equipment manufacturing.

[0003] During the rolling of a workpiece, the inner and outer diameters of the workpiece continuously expand. When the outer wall of the workpiece comes into contact with the induction roller on the rolling mill, the workpiece can compress the induction roller, causing the hydraulic cylinder connected to the induction roller to slightly contract. The magnetostrictive sensor inside the hydraulic cylinder can detect the contraction and thus control the rolling roller to stop rolling the workpiece. Existing rolling mills can only detect the outer wall of the workpiece. After the workpiece is rolled, the inner wall still needs to be measured manually with a ruler, which is cumbersome and the frequent manual measurements are unsafe. Summary of the Invention

[0004] The purpose of this invention is to address existing problems by providing an automatic adjustment mechanism for the roll gap of a flange ring rolling mill. During the rolling of a workpiece, the mechanism can simultaneously detect and sense the inner and outer walls of the workpiece. Once both the inner and outer walls are deemed qualified, the rolling process is stopped, eliminating the need for manual measurement and improving safety and convenience.

[0005] This invention is achieved through the following technical solution: an automatic adjustment mechanism for the roll gap of a flange ring rolling mill, comprising, Mounting rack; The core roller, rotatably mounted on the mounting frame, is used to hold the workpiece; The rolling mechanism, mounted on the mounting frame and corresponding to the mandrel, is used to roll the workpiece on the mandrel. An external sensing mechanism, mounted on the mounting frame, is used to detect the outer diameter of the workpiece and control the rolling mechanism to roll the workpiece on the core roller. The swing arm mechanism, mounted on the mounting frame, is used to prevent the workpiece from falling off the core roller; An internal sensing mechanism, mounted on the swing arm mechanism, is used to detect the inner diameter of the workpiece and control the rolling mechanism to roll the workpiece on the core roller. The internal sensing mechanism includes a sliding component mounted on the swing arm mechanism, a transmission component mounted on the swing arm mechanism and connected to the sliding component, a feeding component connected to the sliding component, an internal sensing component mounted on the swing arm mechanism and connected to the sliding component, a U-shaped seat at the output end of the feeding component, a positioning component connected to the U-shaped seat, and an internal detection roller rotatably mounted on the U-shaped seat and capable of rolling contact with the workpiece on the core roller.

[0006] Preferably, the swing arm mechanism includes a mounting base on the mounting frame, two mounting plates symmetrically arranged on the mounting base, a rotating arm rotatably arranged on the mounting base, and a swing arm hydraulic cylinder hinged to the middle of the rotating arm via a pin, wherein one end of the rotating arm away from the mounting base is in contact with one end of the core roller.

[0007] Preferably, the sliding assembly includes two slide rods mirror-displayed on the rotating arm, a first sliding sleeve slidably disposed on the two slide rods respectively, and a moving block disposed between the two first sliding sleeves and connected to the transmission assembly and the feeding assembly.

[0008] Preferably, the transmission assembly includes two connecting rods rotatably mounted on the moving block, two connecting rods 2 respectively hinged to the two connecting rods 1, and two bearing plates respectively mounted on two mounting plates. The end of the connecting rod 2 away from the connecting rod 1 is rotatably connected to the rotating arm, and the ends of the connecting rod 1 and the connecting rod 2 that are close to each other are slidably connected to their corresponding bearing plates.

[0009] Preferably, the feeding assembly includes two sliding sleeves slidably disposed on two sliding rods, a sliding block disposed between the two sliding sleeves, and a feeding hydraulic cylinder disposed on the sliding block. The rotating arm has a strip-shaped hole for accommodating the feeding hydraulic cylinder. The output end of the feeding hydraulic cylinder slides through the sliding block and the strip-shaped hole and is fixedly connected to the U-shaped seat.

[0010] Preferably, the internal sensing assembly includes a magnetostrictive sensor rod disposed on the rotating arm, a magnetostrictive sensor ring movably sleeved on the magnetostrictive sensor rod for detecting the moving distance, and a connecting block disposed on the sliding block and connected to the magnetostrictive sensor ring.

[0011] Preferably, the positioning component includes a fixed limiting plate disposed on the rotating arm and a movable limiting plate disposed on the U-shaped seat. One end of the movable limiting plate passes through the strip hole on the rotating arm, and one end of the movable limiting plate can contact the fixed limiting plate.

[0012] Preferably, the compaction mechanism includes a slide rail mirror-mounted on the mounting frame, two slide blocks slidably mounted on the two slide rails respectively, a fixed seat between the two slide blocks, a compaction hydraulic cylinder mounted on the mounting frame and connected to the fixed seat at its output end, and a compaction roller rotatably mounted on the fixed seat.

[0013] Preferably, the external sensing mechanism includes an external hydraulic cylinder mounted on a mounting frame, a U-shaped seat II mounted at the end of the external hydraulic cylinder, and an external detection roller rotatably mounted on the U-shaped seat II and capable of rolling contact with the workpiece on the core roller.

[0014] Preferably, annular grooves are provided at the close ends of connecting rod one and connecting rod two, and rollers that are rotatably connected to the bearing plate are rotatably arranged in the annular grooves via bearings.

[0015] Compared with the prior art, the present invention has the following advantages: by pushing the U-shaped seat to move by the feeding component, the internal detection roller can be moved to the inside of the workpiece. At the same time as the feeding component pushes the U-shaped seat, the positioning component can be unlocked, so that the feeding component can drive the U-shaped seat and the internal detection roller on it to fall, so that the internal detection roller can contact the inner wall of the workpiece. As the workpiece grows larger, the internal detection roller, the U-shaped seat and the feeding component all move downward until the internal sensing component detects that the feeding component has fallen to the preset position, and then the rolling mechanism can be controlled to stop rolling the workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the compaction mechanism of the present invention; Figure 4 This is a schematic diagram of the swing arm mechanism of the present invention; Figure 5 This is a schematic diagram of the swing arm mechanism of the present invention from another perspective; Figure 6 This is a partial structural diagram of the swing arm mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic cross-sectional view of the rotating arm structure of the present invention; Figure 9This is a schematic diagram of the sliding component of the present invention; Figure 10 This is a schematic diagram of one part of the connecting rod structure of the present invention; Figure 11 This is a schematic diagram of the structure of the annular groove in this invention.

[0017] In the picture: 100. Mounting bracket; 200. Core roller; 300. Compacting mechanism; 310. Slide rail; 320. Slide block; 330. Fixed base; 340. Compacting hydraulic cylinder; 350. Compacting roller; 400. External sensing mechanism; 410. External hydraulic cylinder; 420. U-shaped seat two; 430. External detection roller; 500. Swing arm mechanism; 510. Mounting base; 520. Mounting plate; 530. Rotary arm; 540. Swing arm hydraulic cylinder; 600. Internal sensing mechanism; 610. Sliding assembly; 611. Slide rod; 612. Sliding sleeve one; 613. Moving block; 620. Transmission assembly; 621. Connecting rod one; 622. Connecting rod two; 623. Bearing plate; 630. Feeding assembly; 631. Sliding sleeve two; 632. Sliding block; 633. Feeding hydraulic cylinder; 640. Internal sensing assembly; 641. Magnetostrictive sensor probe; 642. Magnetostrictive sensor magnetic ring; 643. Connecting block; 650. U-shaped seat one; 660. Positioning assembly; 661. Limiting plate; 662. Limiting moving plate; 670. Internal detection roller; 700, strip-shaped hole; 800, annular groove; 900, rollers. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more readily understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0021] like Figure 1-11 As shown, this application provides an automatic adjustment mechanism for the roll gap of a flange ring rolling mill, including a mounting frame 100; The core roller 200 is rotatably mounted on the mounting frame 100 and is used to place the workpiece. The rolling mechanism 300 is mounted on the mounting frame 100 and corresponds to the core roll 200. It is used to roll the workpiece on the core roll 200. An external sensing mechanism 400 is mounted on the mounting frame 100 and is used to detect the outer diameter of the workpiece and control the rolling mechanism 300 to roll the workpiece on the core roller 200. The swing arm mechanism 500 is mounted on the mounting frame 100 to prevent the workpiece from falling off the core roller 200; The swing arm mechanism 500 includes a mounting base 510 mounted on a mounting frame 100, two mounting plates 520 symmetrically mounted on the mounting base 510, a rotating arm 530 rotatably mounted on the mounting base 510, and a swing arm hydraulic cylinder 540 hinged to the middle of the rotating arm 530 via a pin. The end of the rotating arm 530 away from the mounting base 510 contacts one end of the core roller 200. The end of the swing arm hydraulic cylinder 540 away from the rotating arm 530 can be installed in a groove in the ground. Activating the swing arm hydraulic cylinder 540 can push one end of the rotating arm 530 to move, thereby allowing the rotating arm 530 to rotate on the mounting base 510, so that one end of the rotating arm 530 can contact one end of the core roller 200, thus preventing the workpiece on the core roller 200 from falling off. An internal sensing mechanism 600, mounted on the swing arm mechanism 500, is used to detect the inner diameter of the workpiece and control the rolling mechanism 300 to roll the workpiece on the core roller 200. The internal sensing mechanism 600 includes a sliding component 610 disposed on the swing arm mechanism 500, a transmission component 620 disposed on the swing arm mechanism 500 and connected to the sliding component 610, a feeding component 630 connected to the sliding component 610, an internal sensing component 640 disposed on the swing arm mechanism 500 and connected to the sliding component 610, a U-shaped seat 650 disposed at the output end of the feeding component 630, a positioning component 660 connected to the U-shaped seat 650, and an internal detection roller 670 rotatably disposed on the U-shaped seat 650 and capable of rolling contact with the workpiece on the core roller 200.

[0022] The sliding assembly 610 includes two slide rods 611 mirror-displayed on the rotating arm 530, a first slide sleeve 612 slidably disposed on the two slide rods 611 respectively, and a moving block 613 disposed between the two first slide sleeves 612 and connected to the transmission assembly 620 and the feeding assembly 630. The transmission assembly 620 includes two connecting rods 621 rotatably mounted on the moving block 613, two connecting rods 622 respectively hinged to the two connecting rods 621, and two bearing plates 623 respectively mounted on the two mounting plates 520. The end of the connecting rod 622 away from the connecting rod 621 is rotatably connected to the rotating arm 530, and the ends of the connecting rods 621 and 622 that are close to each other are slidably connected to their corresponding bearing plates 623.

[0023] When the swing arm hydraulic cylinder 540 drives the rotating arm 530 to rotate clockwise, it can compress the connecting rod 621. Since one end of the connecting rod 621 is restricted by the bearing plate 623, the connecting rod 621 can rotate with the cooperation of the connecting rod 622, which can push the moving block 613 upward, so that the moving block 613 can move on the sliding rod 611 through the sliding sleeve 612. When the moving block 613 moves to the upper part of the rotating arm 530, the positioning component 660 can fix the moving block 613 and the feeding component 630 on it to the upper part of the rotating arm 530.

[0024] The feeding assembly 630 includes two sliding sleeves 631 respectively slidably mounted on two sliding rods 611, a sliding block 632 disposed between the two sliding sleeves 631, and a feeding hydraulic cylinder 633 disposed on the sliding block 632. The rotating arm 530 has a slotted hole 700 for accommodating the feeding hydraulic cylinder 633. The output end of the feeding hydraulic cylinder 633 slides through the sliding block 632 and the slotted hole 700 and is fixedly connected to the U-shaped seat 650. The positioning assembly 660 includes a limiting plate 661 disposed on the rotating arm 530 and a limiting moving plate 662 disposed on the U-shaped seat 650. One end of the limiting moving plate 662 passes through the slotted hole 700 on the rotating arm 530, and one end of the limiting moving plate 662 can contact the limiting plate 661.

[0025] The feed hydraulic cylinder 633 can push the U-shaped seat 650 to move, which in turn can drive the internal detection roller 670 to move towards the workpiece side, so that the internal detection roller 670 can be located inside the workpiece. The extension and retraction of the feed hydraulic cylinder 633 can drive the internal detection roller 670 to extend or retract, which can prevent the internal detection roller 670 from colliding with the workpiece when rotating with the rotating arm 530, thus improving safety. At the same time, while the feed hydraulic cylinder 633 pushes the U-shaped seat 650 to move, it can also drive the limiting moving plate 662 to move, so that the limiting moving plate 662 can separate from the limiting fixed plate 661, thereby allowing the moving block 613 to fall freely.

[0026] The internal sensing assembly 640 includes a magnetostrictive sensor rod 641 mounted on the rotating arm 530, a magnetostrictive sensor ring 642 movably sleeved on the magnetostrictive sensor rod 641 for detecting the moving distance, and a connecting block 643 mounted on the sliding block 632 and connected to the magnetostrictive sensor ring 642.

[0027] After the moving block 613 falls, it can drive the magnetostrictive sensor ring 642 to move on the magnetostrictive sensor probe 641 through the connecting block 643. In this way, the moving distance of the magnetostrictive sensor ring 642 can be recorded. By recording the moving distance of the magnetostrictive sensor ring 642, the inner diameter of the workpiece can be calculated, that is, the rolling mechanism 300 can be controlled to roll the workpiece.

[0028] The compaction mechanism 300 includes a slide rail 310 mirror-mounted on the mounting frame 100, two slide blocks 320 slidably mounted on the two slide rails 310 respectively, a fixed seat 330 mounted between the two slide blocks 320, a compaction hydraulic cylinder 340 mounted on the mounting frame 100 and connected to the fixed seat 330 at its output end, and a compaction roller 350 rotatably mounted on the fixed seat 330.

[0029] The rolling hydraulic cylinder 340 can push the fixed seat 330 to move, so that the fixed seat 330 can move up and down on the slide rail 310 through the slide block 320, which in turn can drive the rolling roller 350 to move up and down, so as to achieve the effect of rolling the workpiece on the core roller 200.

[0030] The external sensing mechanism 400 includes an external hydraulic cylinder 410 mounted on the mounting frame 100, a U-shaped seat 420 mounted at the end of the external hydraulic cylinder 410, and an external detection roller 430 rotatably mounted on the U-shaped seat 420 and capable of rolling contact with the workpiece on the core roller 200.

[0031] When the workpiece is rolled on the core roll 200, as the workpiece expands, its outer diameter also expands and comes into contact with the external detection roll 430, causing the external detection roll 430 to be squeezed and moved. The force can then be transmitted to the external hydraulic cylinder 410 through the U-shaped seat 420. The external hydraulic cylinder 410 is equipped with a magnetostrictive sensor for detecting its displacement, which can detect the displacement of the external detection roll 430 and thus control the rolling mechanism 300 to roll the workpiece.

[0032] Both connecting rod 621 and connecting rod 622 have annular grooves 800 at their close ends. Rollers 900, which are rotatably connected to the bearing plate 623, are installed in the annular grooves 800 via bearings.

[0033] The roller 900 reduces the friction between the first link 621 and the second link 622 and the bearing plate 623, preventing the first link 621 and the second link 622 from getting stuck when moving, thus improving stability.

[0034] Working principle: During operation, the feed hydraulic cylinder 633 drives the swing arm hydraulic cylinder 540 to pull the rotating arm 530 to rotate, so that the rotating arm 530 can squeeze the connecting rod 621, causing the roller 900 to roll on the bearing plate 623. This causes the connecting rod 621 to rotate, which pushes the moving block 613 to move upward on the slide rod 611. The moving block 613 can then push the sliding block 632 to move upward, which in turn drives the feed hydraulic cylinder 633 and the limit plate 662 to move upward. When the limit plate 662 approaches the limit plate... At time 661, the feed hydraulic cylinder 633 is activated, causing the limit moving plate 662 to move to a position offset from the limit stationary plate 661. When the sliding block 632 moves the limit moving plate 662 on the feed hydraulic cylinder 633 to the other side of the limit stationary plate 661, the feed hydraulic cylinder 633 retracts, causing the limit moving plate 662 to move to align with the limit stationary plate 661. At this time, the limit moving plate 662 is located on the side of the limit stationary plate 661 away from the sliding block 632. Then, the workpiece can be placed on the core roller 200. The swing arm hydraulic cylinder 540 is activated to push the rotating arm 530 to rotate, so that... One end of the rotating arm 530 can contact the core roller 200, while the moving block 613 falls naturally and separates from the sliding block 632. The rolling hydraulic cylinder 340 is activated to push the fixed seat 330 to move, driving the rolling roller 350 to roll the workpiece on the core roller 200. When the workpiece is enlarged to a suitable size, the feed hydraulic cylinder 633 is activated to push the U-shaped seat 650 and its internal detection roller 670 to the inside of the workpiece. At the same time, the feed hydraulic cylinder 633 can push the limiting moving plate 662 to move, so that the limiting moving plate 662 can separate from the limiting fixed plate 661. At this time, The sliding block 632 falls naturally, which can drive the feed hydraulic cylinder 633, U-shaped seat 650 and its internal detection roller 670 to move, so that the internal detection roller 670 can fall onto the inner wall of the workpiece. As the workpiece expands, the internal detection roller 670 moves downward continuously, which also causes the sliding block 632 to move downward, thereby driving the magnetostrictive sensor ring 642 to move on the magnetostrictive sensor probe 641. By calculating the moving distance of the magnetostrictive sensor ring 642, the inner diameter of the workpiece can be determined, which is convenient for controlling the extension and retraction of the rolling hydraulic cylinder 340. The extension and retraction of the rolling hydraulic cylinder 340 can also be controlled by the external sensing mechanism 400. When the workpiece comes into contact with the external detection roller 430, it can be squeezed to make it displaced, so that the external hydraulic cylinder 410 can detect the displacement, that is, it can control the extension and retraction of the rolling hydraulic cylinder 340.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic adjustment mechanism for the roll gap of a flange ring rolling mill, characterized in that, include, Mounting bracket (100); The core roller (200) is rotatably mounted on the mounting frame (100) for placing the workpiece; A rolling mechanism (300) is mounted on a mounting frame (100) and corresponds to a mandrel (200) for rolling workpieces on the mandrel (200); An external sensing mechanism (400) is mounted on a mounting frame (100) to detect the outer diameter of the workpiece and control the rolling mechanism (300) to roll the workpiece on the core roller (200). A swing arm mechanism (500) is mounted on a mounting frame (100) to prevent the workpiece from falling off the core roller (200); An internal sensing mechanism (600) is installed on the swing arm mechanism (500) to detect the inner diameter of the workpiece and control the rolling mechanism (300) to roll the workpiece on the core roller (200). The internal sensing mechanism (600) includes a sliding component (610) disposed on the swing arm mechanism (500), a transmission component (620) disposed on the swing arm mechanism (500) and connected to the sliding component (610), a feeding component (630) connected to the sliding component (610), an internal sensing component (640) disposed on the swing arm mechanism (500) and connected to the sliding component (610), a U-shaped seat (650) disposed at the output end of the feeding component (630), a positioning component (660) connected to the U-shaped seat (650), and an internal detection roller (670) rotatably disposed on the U-shaped seat (650) and capable of rolling contact with the workpiece on the core roller (200).

2. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 1, characterized in that: The swing arm mechanism (500) includes a mounting base (510) mounted on a mounting frame (100), two mounting plates (520) symmetrically mounted on the mounting base (510), a rotating arm (530) rotatably mounted on the mounting base (510), and a swing arm hydraulic cylinder (540) hinged to the middle of the rotating arm (530) by a pin. The end of the rotating arm (530) away from the mounting base (510) is in contact with the end of the core roller (200).

3. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 2, characterized in that: The sliding assembly (610) includes two slide rods (611) mirror-displayed on the rotating arm (530), a first slide sleeve (612) slidably disposed on the two slide rods (611), and a moving block (613) disposed between the two first slide sleeves (612) and connected to the transmission assembly (620) and the feeding assembly (630).

4. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 3, characterized in that: The transmission assembly (620) includes two connecting rods (621) rotatably mounted on the moving block (613), two connecting rods (622) respectively hinged to the two connecting rods (621), and two bearing plates (623) respectively mounted on the two mounting plates (520). The end of the connecting rod (622) away from the connecting rod (621) is rotatably connected to the rotating arm (530), and the ends of the connecting rods (621) and the connecting rods (622) that are close to each other are slidably connected to their corresponding bearing plates (623).

5. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 3, characterized in that: The feeding assembly (630) includes two sliding sleeves (631) respectively slidably mounted on two slide rods (611), a sliding block (632) disposed between the two sliding sleeves (631), and a feeding hydraulic cylinder (633) disposed on the sliding block (632). The rotating arm (530) has a strip hole (700) for accommodating the feeding hydraulic cylinder (633). The output end of the feeding hydraulic cylinder (633) slides through the sliding block (632) and the strip hole (700) and is fixedly connected to the U-shaped seat (650).

6. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 5, characterized in that: The internal sensing component (640) includes a magnetostrictive sensor rod (641) disposed on the rotating arm (530), a magnetostrictive sensor ring (642) movably sleeved on the magnetostrictive sensor rod (641) for detecting the moving distance, and a connecting block (643) disposed on the sliding block (632) and connected to the magnetostrictive sensor ring (642).

7. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 1, characterized in that: The positioning component (660) includes a fixed plate (661) disposed on the rotating arm (530) and a movable plate (662) disposed on the U-shaped seat (650). One end of the movable plate (662) passes through the strip hole (700) on the rotating arm (530), and one end of the movable plate (662) can contact the fixed plate (661).

8. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 1, characterized in that: The rolling mechanism (300) includes a slide rail (310) mirror-mounted on the mounting frame (100), two slide blocks (320) slidably mounted on the two slide rails (310), a fixed seat (330) between the two slide blocks (320), a rolling hydraulic cylinder (340) mounted on the mounting frame (100) and connected at its output end to the fixed seat (330), and a rolling roller (350) rotatably mounted on the fixed seat (330).

9. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 1, characterized in that: The external sensing mechanism (400) includes an external hydraulic cylinder (410) mounted on the mounting frame (100), a U-shaped seat (420) mounted at the end of the external hydraulic cylinder (410), and an external detection roller (430) rotatably mounted on the U-shaped seat (420) and capable of rolling contact with the workpiece on the core roller (200).

10. The automatic adjustment mechanism for the roll gap of a flange ring rolling mill according to claim 4, characterized in that: Both connecting rod one (621) and connecting rod two (622) have annular grooves (800) at their close ends. Rollers (900) that are rotatably connected to the bearing plate (623) are provided in the annular grooves (800) through bearings.

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