A flange rubber gasket cutting tool

Abstract

The application provides a flange rubber sealing gasket cutting tool and relates to the technical field of pipeline sealing processing. The application generally cuts by manual line marking and scissors, and has a large cutting error and increases labor intensity during cutting. When the intelligent control panel controls the work of the servo motor, the rotating cutting frame drives the two cutting blades to move, and the automatic cutting of the flange rubber sealing gasket is realized.

Description

Technical Field

[0001] This invention belongs to the field of pipeline sealing component processing technology, and more specifically, relates to a flange rubber gasket cutting tool. Background Technology

[0002] Flange rubber gaskets are the core static sealing element in flange connections. With their excellent elastic resilience, they fit tightly against the flange surface, effectively filling gaps and preventing media leakage. They are oil-resistant, temperature-resistant, and adaptable to various working conditions, and are widely used in oil, gas, and water pipeline connections in hydropower stations.

[0003] Currently, the following problems still exist in the cutting of flange rubber gaskets: 1. Generally, the lines are marked manually before cutting with scissors, which results in a large cutting error and increases the labor intensity during cutting; 2. It is inconvenient for staff to adjust the cutting size appropriately, resulting in poor versatility; 3. It is impossible to automatically position the rubber gasket before cutting, which makes the rubber gasket prone to displacement during cutting and affects the cutting accuracy of the flange rubber gasket. Summary of the Invention

[0004] This disclosure relates to a flange rubber gasket cutting tool, which includes a lifting control unit, a rotary cutting unit, a spacing adjustment unit, and an elastic positioning unit. When the intelligent control panel controls the servo motor to work, the rotary cutting frame drives the two cutting blades to move, realizing automatic cutting of the flange rubber gasket. It allows the operator to adjust the spacing between the two cutting blades appropriately using a hex wrench, making it easier for the operator to control the cutting size of the flange rubber gasket. The elastic positioning plate first contacts the top of the rubber gasket, and then the two cutting blades pass through the rubber gasket and contact the rectangular mounting plate, realizing automatic clamping and positioning of the rubber gasket to be cut. This solves the problems of manual marking followed by scissor cutting, inconvenience for operators to adjust the cutting size appropriately, and inability to automatically position the rubber gasket before cutting.

[0005] This invention provides a flange rubber gasket cutting tool, comprising: a lifting control unit, a rotary cutting unit, a spacing adjustment unit, and an elastic positioning unit; the rotary cutting unit is mounted on the lifting control unit and is used to cut the flange rubber gasket, and the lifting control unit is used to adjust the height of the rotary cutting unit; the spacing adjustment unit is mounted on the rotary cutting unit and is used to adjust the cutting spacing of the rotary cutting unit; the elastic positioning unit is mounted at the bottom of the rotary cutting unit and is used to position the flange rubber gasket during the cutting process; an intelligent control panel is mounted on the top of the lifting control unit and is used to control the rotary cutting unit.

[0006] In at least some embodiments, the lifting control unit includes: a rectangular mounting plate, a U-shaped support frame, and a circular guide shaft a; the rectangular mounting plate has mounting holes at its corners; the U-shaped support frame is fixedly mounted on the top of the rectangular mounting plate; there are four circular guide shafts a in total, and the four circular guide shafts a are fixedly mounted on the top of the U-shaped support frame.

[0007] In at least some embodiments, the lifting control unit further includes: a circular guide shaft b and a lifting control plate; the circular guide shaft b is fixedly mounted on the top of the rectangular mounting plate; the lifting control plate is slidably mounted on four circular guide shafts a and circular guide shaft b.

[0008] In at least some embodiments, the lifting control unit further includes: a lifting control rod and a limiting ring a; the bottom end of the lifting control rod is inserted into the U-shaped support frame, and the lifting control rod is also threadedly connected to the lifting control plate; there are two limiting rings a, and the two limiting rings a are fixedly installed on the outside of the lifting control rod, and the inner sides of the two limiting rings a are in contact with the U-shaped support frame.

[0009] In at least some embodiments, the rotary cutting unit includes: a servo motor and a rotary cutting frame; the servo motor is fixedly mounted on the top of the lifting control plate and is electrically connected to the intelligent control panel; the rotary cutting frame is fixedly mounted on the output shaft of the servo motor.

[0010] In at least some embodiments, the rotary cutting unit further includes: a movable control seat and a cutting blade; there are two movable control seats, and the two movable control seats are slidably mounted on the rotary cutting frame; there are two cutting blades, and the two cutting blades are fixedly mounted on the bottom of the two movable control seats.

[0011] In at least some embodiments, the spacing adjustment unit includes: a spacing adjustment rod and a limiting adjustment block; the spacing adjustment rod is rotatably mounted on the rotary cutting frame, and the outer wall of the spacing adjustment rod is provided with a bidirectional thread, and the spacing adjustment rod is also threadedly connected to two movable control seats; there are two limiting adjustment blocks, and the two limiting adjustment blocks are fixedly mounted on both ends of the spacing adjustment rod; the inner sides of the two limiting adjustment blocks are in contact with the rotary cutting frame, and both limiting adjustment blocks are provided with hexagonal grooves.

[0012] In at least some embodiments, the elastic positioning unit includes: a rectangular mounting frame, a connecting bearing, and a T-shaped connecting bracket; the rectangular mounting frame is fixedly mounted on the bottom of the rotary cutting frame; the outer ring of the connecting bearing is fixedly mounted on the rectangular mounting frame; and the top end of the T-shaped connecting bracket is fixedly mounted on the inner ring of the connecting bearing.

[0013] In at least some embodiments, the elastic positioning unit further includes: a circular guide rod, an elastic positioning disk, and a conical auxiliary block; there are two circular guide rods, and the two circular guide rods are slidably mounted on the T-shaped connecting frame; the elastic positioning disk is fixedly mounted on the bottom of the two circular guide rods, and the bottom of the elastic positioning disk is lower than the bottom of the two cutting blades; there are two conical auxiliary blocks, and the two conical auxiliary blocks are fixedly mounted on the bottom of the elastic positioning disk.

[0014] In at least some embodiments, the elastic positioning unit further includes: a limiting retaining ring b and a supporting spring; there are two limiting retaining rings b, and the two limiting retaining rings b are fixedly installed on the top ends of the two circular guide rods, and the bottom of the two limiting retaining rings b contacts the T-shaped connecting frame; there are two supporting springs, and the two supporting springs are sleeved on the outside of the two circular guide rods, and the two supporting springs are located between the T-shaped connecting frame and the elastic positioning plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, four circular guide shafts a are fixedly installed on the top of the U-shaped support frame, and circular guide shaft b is fixedly installed on the top of the rectangular mounting plate. The lifting control plate is slidably installed on the four circular guide shafts a and b, allowing the lifting control plate to slide up and down along the four circular guide shafts a and b. Furthermore, the lifting control rod is threadedly connected to the lifting control plate, and two limiting rings a are fixedly installed on the outside of the lifting control rod, with the inner sides of the two limiting rings a contacting the U-shaped support frame. When the operator rotates the lifting control rod clockwise, the lifting control plate moves downward; when the operator rotates the lifting control rod counterclockwise, the lifting control plate moves upward, facilitating appropriate adjustment of the height of the lifting control plate by the operator.

[0016] 2. In this invention, the rotary cutting frame is fixedly mounted on the output shaft of the servo motor, and the two movable control seats are slidably mounted on the rotary cutting frame. The two cutting blades are fixedly mounted on the bottom of the two movable control seats. When the intelligent control panel controls the servo motor to work, the rotary cutting frame drives the two cutting blades to move, thereby realizing the automatic cutting of the flange rubber gasket. Furthermore, the outer wall of the spacing adjustment rod is provided with a bidirectional thread, and the spacing adjustment rod is also threadedly connected to the two movable control seats. The inner sides of the two limit adjustment blocks are in contact with the rotary cutting frame, making it convenient for the operator to adjust the spacing between the two cutting blades appropriately using a hex wrench, thus facilitating the operator to control the cutting size of the flange rubber gasket.

[0017] 3. In this invention, because two circular guide rods are slidably mounted on the T-shaped connecting frame, and the elastic positioning plate is fixedly mounted on the bottom of the two circular guide rods, and two support springs are located between the T-shaped connecting frame and the elastic positioning plate, when the operator rotates the lifting control rod clockwise, the elastic positioning plate first contacts the top of the rubber pad, and then the two cutting blades pass through the rubber pad and contact the rectangular mounting plate, realizing the automatic clamping and positioning of the rubber pad to be cut, which is beneficial to improving the cutting accuracy of the flange rubber sealing gasket; and because the outer ring of the connecting bearing is fixedly mounted on the rectangular mounting frame, and the top of the T-shaped connecting frame is fixedly mounted on the inner ring of the connecting bearing, and two conical auxiliary blocks are fixedly mounted on the bottom of the elastic positioning plate, when the intelligent control panel controls the servo motor to work, the elastic positioning plate does not rotate under the action of the connecting bearing, realizing the stable positioning of the rubber pad to be cut. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of the present invention is shown; Figure 2 A schematic diagram of the lifting control unit of the present invention is shown; Figure 3 The present invention is shown. Figure 1 A schematic diagram of the central cross-section structure; Figure 4 The present invention is shown. Figure 3 A magnified schematic diagram of a portion of region A in the middle; Figure 5 The present invention is shown. Figure 1 A schematic diagram of the top view structure; Figure 6 A schematic diagram of the structure of the rotary cutting unit and the spacing adjustment unit of the present invention is shown; Figure 7 The present invention is shown. Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction; Figure 8 The present invention is shown. Figure 7 A magnified schematic diagram of a portion of region C in the middle; Figure 9 A schematic diagram of the structure of the elastic positioning unit of the present invention is shown; Figure 10 The present invention is shown. Figure 9 A schematic diagram of the bottom view structure.

[0021] List of reference numerals in the attached diagram: 100. Lifting control unit; 101. Rectangular mounting plate; 102. U-shaped support frame; 103. Circular guide shaft a; 104. Circular guide shaft b; 105. Lifting control plate; 106. Lifting control rod; 107. Limiting ring a; 200. Rotary cutting unit; 201. Servo motor; 202. Rotary cutting frame; 203. Movable control base; 204. Cutting blade; 300. Spacing adjustment unit; 301. Spacing adjustment rod; 302. Limit adjustment block; 400. Elastic positioning unit; 401. Rectangular mounting frame; 402. Connecting bearing; 403. T-shaped connecting bracket; 404. Circular guide rod; 405. Elastic positioning disc; 406. Conical auxiliary block; 407. Limiting ring b; 408. Support spring; 500. Intelligent control panel. Detailed Implementation

[0022] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0023] Example: Please refer to Figures 1 to 10 As shown: This invention provides a flange rubber gasket cutting tool, comprising: a lifting control unit 100, a rotary cutting unit 200, a spacing adjustment unit 300, and an elastic positioning unit 400; the rotary cutting unit 200 is mounted on the lifting control unit 100, and is used to cut the flange rubber gasket, and the lifting control unit 100 is used to adjust the height of the rotary cutting unit 200; the spacing adjustment unit 300 is mounted on the rotary cutting unit 200, and is used to adjust the cutting spacing of the rotary cutting unit 200; the elastic positioning unit 400 is mounted on the bottom of the rotary cutting unit 200, and is used to position the flange rubber gasket during the cutting process; an intelligent control panel 500 is mounted on the top of the lifting control unit 100, and the intelligent control panel 500 is used to control the rotary cutting unit 200.

[0024] In this embodiment of the disclosure, such as Figure 2 and Figure 4As shown, the lifting control unit 100 includes: a rectangular mounting plate 101, a U-shaped support frame 102, and circular guide shafts a103; mounting holes are provided at the corners of the rectangular mounting plate 101; the U-shaped support frame 102 is fixedly mounted on the top of the rectangular mounting plate 101; four circular guide shafts a103 are provided, and all four circular guide shafts a103 are fixedly mounted on the top of the U-shaped support frame 102; the lifting control unit 100 also includes: a circular guide shaft b104 and a lifting control plate 105; the circular guide shaft b104 is fixedly mounted on the rectangular mounting plate 101. The top; the lifting control plate 105 is slidably mounted on four circular guide shafts a103 and b104; the lifting control unit 100 also includes: a lifting control rod 106 and a limiting ring a107; the bottom end of the lifting control rod 106 is inserted into the U-shaped support frame 102, and the lifting control rod 106 is also threadedly connected to the lifting control plate 105; there are two limiting rings a107, and the two limiting rings a107 are fixedly installed on the outside of the lifting control rod 106, and the inner side of the two limiting rings a107 contacts the U-shaped support frame 102.

[0025] The specific function of the lifting control unit 100 is as follows: Four circular guide shafts a103 are fixedly installed on the top of the U-shaped support frame 102, and a circular guide shaft b104 is fixedly installed on the top of the rectangular mounting plate 101. The lifting control plate 105 is slidably installed on the four circular guide shafts a103 and b104, allowing the lifting control plate 105 to slide up and down along the four circular guide shafts a103 and b104. Furthermore, the lifting control rod 106 is threadedly connected to the lifting control plate 105, and two limiting rings a107 are fixedly installed on the outside of the lifting control rod 106. The inner sides of the two limiting rings a107 contact the U-shaped support frame 102. When the operator rotates the lifting control rod 106 clockwise, the lifting control plate 105 moves downwards; when the operator rotates the lifting control rod 106 counterclockwise, the lifting control plate 105 moves upwards, facilitating appropriate adjustment of the height of the lifting control plate 105.

[0026] In this embodiment of the disclosure, such as Figure 6 and Figure 8 As shown, the rotary cutting unit 200 includes: a servo motor 201 and a rotary cutting frame 202; the servo motor 201 is fixedly mounted on the top of the lifting control plate 105 and is electrically connected to the intelligent control panel 500; the rotary cutting frame 202 is fixedly mounted on the output shaft of the servo motor 201; the rotary cutting unit 200 also includes: a movable control seat 203 and a cutting blade 204; there are two movable control seats 203, and the two movable control seats 203 are slidably mounted on the rotary cutting frame 202; there are two cutting blades 204, and the two cutting blades 204 are fixedly mounted on the bottom of the two movable control seats 203.

[0027] The spacing adjustment unit 300 includes: a spacing adjustment rod 301 and a limit adjustment block 302; the spacing adjustment rod 301 is rotatably mounted on the rotary cutting frame 202, and the outer wall of the spacing adjustment rod 301 is provided with a bidirectional thread, and the spacing adjustment rod 301 is also threadedly connected to two movable control seats 203; there are two limit adjustment blocks 302, and the two limit adjustment blocks 302 are fixedly mounted on both ends of the spacing adjustment rod 301; the inner side of the two limit adjustment blocks 302 contacts the rotary cutting frame 202, and both limit adjustment blocks 302 are provided with hexagonal grooves.

[0028] The specific functions of the rotary cutting unit 200 and the spacing adjustment unit 300 are as follows: Since the rotary cutting frame 202 is fixedly installed on the output shaft of the servo motor 201, and the two movable control seats 203 are slidably installed on the rotary cutting frame 202, and the two cutting blades 204 are fixedly installed on the bottom of the two movable control seats 203, when the intelligent control panel 500 controls the servo motor 201 to work, the rotary cutting frame 202 drives the two cutting blades 204 to move, thereby realizing the automatic cutting of the flange rubber gasket; since the outer wall of the spacing adjustment rod 301 is provided with a bidirectional thread, and the spacing adjustment rod 301 is also threadedly connected to the two movable control seats 203, and the inner side of the two limit adjustment blocks 302 is in contact with the rotary cutting frame 202, it is convenient for the operator to adjust the spacing between the two cutting blades 204 appropriately with a hex wrench, so as to facilitate the operator to control the cutting size of the flange rubber gasket.

[0029] In this embodiment of the disclosure, such as Figure 7 , Figure 9 and Figure 10As shown, the elastic positioning unit 400 includes: a rectangular mounting frame 401, a connecting bearing 402, and a T-shaped connecting bracket 403; the rectangular mounting frame 401 is fixedly mounted on the bottom of the rotary cutting frame 202; the outer ring of the connecting bearing 402 is fixedly mounted on the rectangular mounting frame 401; the top of the T-shaped connecting bracket 403 is fixedly mounted on the inner ring of the connecting bearing 402; the elastic positioning unit 400 also includes: circular guide rods 404, an elastic positioning disc 405, and a conical auxiliary block 406; two circular guide rods 404 are provided, and the two circular guide rods 404 are slidably mounted on the T-shaped connecting bracket 403; the elastic positioning disc 405 is fixedly mounted on the bottom of the two circular guide rods 404, and the elastic positioning disc 405 is slidably mounted on the bottom of the two circular guide rods 404. The bottom of 5 is lower than the bottom of the two cutting blades 204; there are two conical auxiliary blocks 406, and the two conical auxiliary blocks 406 are fixedly installed at the bottom of the elastic positioning plate 405; the elastic positioning unit 400 also includes: a limiting retaining ring b407 and a support spring 408; there are two limiting retaining rings b407, and the two limiting retaining rings b407 are fixedly installed at the top of the two circular guide rods 404, and the bottom of the two limiting retaining rings b407 contacts the T-shaped connecting frame 403; there are two support springs 408, and the two support springs 408 are sleeved on the outside of the two circular guide rods 404, and the two support springs 408 are located between the T-shaped connecting frame 403 and the elastic positioning plate 405.

[0030] The specific function of the elastic positioning unit 400 is as follows: Since two circular guide rods 404 are slidably mounted on the T-shaped connecting frame 403, and the elastic positioning disk 405 is fixedly mounted on the bottom of the two circular guide rods 404, and two support springs 408 are located between the T-shaped connecting frame 403 and the elastic positioning disk 405, when the operator rotates the lifting control rod 106 clockwise, the elastic positioning disk 405 first contacts the top of the rubber pad, and then the two cutting blades 204 pass through the rubber pad and contact the rectangular mounting plate 101, realizing the automatic clamping and positioning of the rubber pad to be cut, which is beneficial to improving the cutting accuracy of the flange rubber sealing gasket; since the outer ring of the connecting bearing 402 is fixedly mounted on the rectangular mounting frame 401, and the top of the T-shaped connecting frame 403 is fixedly mounted on the inner ring of the connecting bearing 402, and two conical auxiliary blocks 406 are fixedly mounted on the bottom of the elastic positioning disk 405, when the intelligent control panel 500 controls the servo motor 201 to work, the elastic positioning disk 405 does not rotate under the action of the connecting bearing 402, realizing the stable positioning of the rubber pad to be cut.

[0031] The specific usage and function of this embodiment are as follows: In use, the rectangular mounting plate 101 is first fixedly installed with bolts, and then the intelligent control panel 500 is connected to an external power source. Next, the distance between the two cutting blades 204 is adjusted appropriately using a hex wrench to facilitate control of the cutting size of the flange rubber gasket. Then, the rubber gasket to be cut is placed on top of the rectangular mounting plate 101, positioned below the elastic positioning disc 405. The operator rotates the lifting control lever 106 clockwise. At this point, the elastic positioning disc 405 first contacts the top of the rubber gasket, and then the two cutting blades 204 pass through the rubber gasket and contact the rectangular mounting plate 101, thus achieving... The automatic clamping and positioning of the rubber gasket to be cut helps improve the cutting accuracy of the flange rubber gasket. The servo motor 201 is started by the intelligent control panel 500. When the intelligent control panel 500 controls the servo motor 201 to work, the rotating cutting frame 202 drives the two cutting blades 204 to move, realizing the automatic cutting of the flange rubber gasket. When the intelligent control panel 500 controls the servo motor 201 to work, the elastic positioning disk 405 does not rotate under the action of the connecting bearing 402, realizing the stable positioning of the rubber gasket to be cut. When the operator rotates the lifting control lever 106 counterclockwise, the lifting control plate 105 moves upward.

[0032] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0033] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0034] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A flange rubber gasket cutting tool, comprising: The unit comprises a lifting control unit (100), a rotary cutting unit (200), a spacing adjustment unit (300), and an elastic positioning unit (400); characterized in that the rotary cutting unit (200) is mounted on the lifting control unit (100), the rotary cutting unit (200) is used to cut flange rubber gaskets, and the lifting control unit (100) is used to adjust the height of the rotary cutting unit (200); the spacing adjustment unit (300) is mounted on the rotary cutting unit (200), the spacing adjustment unit (300) is used to adjust the cutting spacing of the rotary cutting unit (200); the elastic positioning unit (400) is mounted on the bottom of the rotary cutting unit (200), the elastic positioning unit (400) is used to position the flange rubber gasket during the cutting process; and an intelligent control panel (500) is mounted on the top of the lifting control unit (100), the intelligent control panel (500) is used to control the rotary cutting unit (200).

2. The flange rubber gasket cutting tool according to claim 1, characterized in that, The lifting control unit (100) includes: a rectangular mounting plate (101), a U-shaped support frame (102), and a circular guide shaft a (103); the rectangular mounting plate (101) has mounting holes at its corners; the U-shaped support frame (102) is fixedly mounted on the top of the rectangular mounting plate (101); there are four circular guide shafts a (103), and the four circular guide shafts a (103) are fixedly mounted on the top of the U-shaped support frame (102).

3. A flange rubber gasket cutting tool according to claim 2, characterized in that, The lifting control unit (100) further includes: a circular guide shaft b (104) and a lifting control plate (105); the circular guide shaft b (104) is fixedly installed on the top of the rectangular mounting plate (101); the lifting control plate (105) is slidably installed on four circular guide shafts a (103) and circular guide shafts b (104).

4. A flange rubber gasket cutting tool according to claim 3, characterized in that, The lifting control unit (100) further includes: a lifting control rod (106) and a limiting ring a (107); the bottom end of the lifting control rod (106) is inserted into the U-shaped support frame (102), and the lifting control rod (106) is also threadedly connected to the lifting control plate (105); there are two limiting rings a (107), and the two limiting rings a (107) are fixedly installed on the outside of the lifting control rod (106), and the inner side of the two limiting rings a (107) is in contact with the U-shaped support frame (102).

5. A flange rubber gasket cutting tool according to claim 3, characterized in that, The rotary cutting unit (200) includes a servo motor (201) and a rotary cutting frame (202); the servo motor (201) is fixedly installed on the top of the lifting control plate (105), and the servo motor (201) is electrically connected to the intelligent control panel (500); the rotary cutting frame (202) is fixedly installed on the output shaft of the servo motor (201).

6. A flange rubber gasket cutting tool according to claim 5, characterized in that, The rotary cutting unit (200) further includes: a movable control seat (203) and a cutting blade (204); there are two movable control seats (203), and the two movable control seats (203) are slidably mounted on the rotary cutting frame (202); there are two cutting blades (204), and the two cutting blades (204) are fixedly mounted on the bottom of the two movable control seats (203).

7. A flange rubber gasket cutting tool according to claim 5, characterized in that, The spacing adjustment unit (300) includes: a spacing adjustment rod (301) and a limit adjustment block (302); the spacing adjustment rod (301) is rotatably mounted on the rotary cutting frame (202), and the outer wall of the spacing adjustment rod (301) is provided with a bidirectional thread, and the spacing adjustment rod (301) is also threadedly connected to two movable control seats (203); there are two limit adjustment blocks (302), and the two limit adjustment blocks (302) are fixedly mounted on both ends of the spacing adjustment rod (301); the inner sides of the two limit adjustment blocks (302) are in contact with the rotary cutting frame (202), and both limit adjustment blocks (302) are provided with hexagonal grooves.

8. A flange rubber gasket cutting tool according to claim 6, characterized in that, The elastic positioning unit (400) includes: a rectangular mounting frame (401), a connecting bearing (402), and a T-shaped connecting frame (403); the rectangular mounting frame (401) is fixedly mounted on the bottom of the rotary cutting frame (202); the outer ring of the connecting bearing (402) is fixedly mounted on the rectangular mounting frame (401); and the top end of the T-shaped connecting frame (403) is fixedly mounted on the inner ring of the connecting bearing (402).

9. A flange rubber gasket cutting tool according to claim 8, characterized in that, The elastic positioning unit (400) further includes: a circular guide rod (404), an elastic positioning disc (405), and a conical auxiliary block (406); there are two circular guide rods (404), and the two circular guide rods (404) are slidably mounted on the T-shaped connecting frame (403); the elastic positioning disc (405) is fixedly mounted on the bottom of the two circular guide rods (404), and the bottom of the elastic positioning disc (405) is lower than the bottom of the two cutting blades (204); there are two conical auxiliary blocks (406), and the two conical auxiliary blocks (406) are fixedly mounted on the bottom of the elastic positioning disc (405).

10. A flange rubber gasket cutting tool according to claim 9, characterized in that, The elastic positioning unit (400) further includes: a limiting retaining ring b (407) and a support spring (408); there are two limiting retaining rings b (407), and the two limiting retaining rings b (407) are fixedly installed on the top of the two circular guide rods (404), and the bottom of the two limiting retaining rings b (407) is in contact with the T-shaped connecting frame (403); there are two support springs (408), and the two support springs (408) are sleeved on the outside of the two circular guide rods (404), and the two support springs (408) are located between the T-shaped connecting frame (403) and the elastic positioning plate (405).

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