Segmentation equipment capable of annularly positioning sealing ring

Abstract

The utility model relates to the field of sealing ring machining, in particular to a sealing ring dividing device capable of being annularly positioned. The sealing ring cutting device solves the technical problems that existing sealing ring cutting equipment is usually fixedly arranged, corresponding adjustment is not convenient to conduct according to sealing rings of different sizes and thicknesses, and the positioning effect is limited, and compared with traditional sealing ring cutting equipment, the sealing ring cutting device comprises a workbench, a positioning assembly, a cutting assembly, a supporting column and a supporting base. By arranging the positioning assembly capable of carrying out annular positioning on the sealing ring blank, the side of the sealing ring blank can be pressed and fixed in a surrounding mode, the sealing ring blank is more matched with the sealing ring blank in shape, positioning is more accurate and stable, and the positioning assembly is arranged to be of an adjustable structure, so that the sealing ring blank can be more stably positioned. The sealing ring blank cutting device can be suitable for sealing ring blanks of different sizes and thicknesses, and by arranging the adjustable cutting assembly, corresponding adjustment can be conducted for cutting according to the sealing ring blanks of different sizes and thicknesses and different cutting requirements.

Description

Technical Field

[0001] The utility model relates to the field of sealing ring processing, in particular to a sealing ring segmentation device capable of annular positioning. Background Art

[0002] A sealing ring is an accessory used for sealing. It is usually used within a certain range of working pressure and temperature. It should have good sealing performance and automatically improve its sealing performance as the pressure increases. The sealing ring also has the characteristics of corrosion resistance, non-aging, long service life, good wear resistance, stable friction coefficient, simple structure, and easy use and maintenance. The sealing ring cutting equipment is a special equipment for cutting sealing rings. The existing sealing ring cutting equipment is usually fixed, which is not convenient for corresponding adjustment according to sealing rings of different sizes and thicknesses, resulting in limitations in the positioning effect. Utility Model Content

[0003] In order to overcome the existing sealing ring segmentation equipment, it is usually fixed, which is not convenient for corresponding adjustment according to sealing rings of different sizes and thicknesses, resulting in limited positioning effect.

[0004] The technical solution of the utility model is: a circumferentially positioned sealing ring cutting device, including a workbench, a positioning assembly, a cutting assembly, a support column and a support seat, a positioning assembly for circumferentially positioning and fixing the sealing ring is provided at the middle of the upper end of the workbench, a cutting assembly for cutting the sealing ring is provided above the positioning assembly, four groups of second slide grooves for sliding of the positioning assembly are provided around the middle of the upper end of the workbench, two groups of first slide grooves for sliding of the cutting assembly are provided symmetrically on the upper side of the workbench, support columns for support are provided around the four corners of the lower end of the workbench, and a support seat for increasing stability is provided at the lower end of the support column.

[0005] Preferably, by providing a positioning component that can perform circumferential positioning of the sealing ring blank, the sides of the sealing ring blank can be pressed and fixed in a circumferential manner, which is more adapted to the shape of the sealing ring blank, thereby making the positioning more precise and stable, and by providing the positioning component as an adjustable structure, it can be suitable for cutting sealing ring blanks of different sizes and thicknesses, and by providing an adjustable cutting component, it can be cut according to the sealing ring blanks of different sizes and thicknesses and different cutting requirements. With the mutual cooperation of the positioning component and the cutting component, a variety of different cutting requirements can be met, which is more convenient and practical.

[0006] Preferably, the positioning assembly includes a column, a sliding column, a sealing ring blank, a first slider, a fixed block, a first electric push rod, a first telescopic cylinder, a support frame, a mounting frame, a second telescopic cylinder, a second electric push rod, a pressure block and a protective pad. A sealing ring blank for processing is placed on the upper end of the column, and four groups of sliding columns for supporting the sides of the sealing ring blank are arranged around the lower end side of the sealing ring blank. The lower end of the sliding column is provided with a first slider for sliding along the second slide groove. The column and the sliding columns arranged around the column can be used to cooperate in supporting the middle and sides of the sealing ring blank respectively.

[0007] Preferably, the first slider is connected to the first telescopic cylinder through an adjustable connection via a first electric push rod, and the first telescopic cylinder adjusts the distance between the slide column and the column by controlling the first electric push rod to drive the first slider to move, and a fixed block for increasing the stability of the connection is provided between the slide column and the first electric push rod, and the distance between the slide column and the column is adjusted by setting the first telescopic cylinder to control the first electric push rod to drive the first slider to move, so that the column and the slide column can be used to support sealing ring blanks of different sizes.

[0008] Preferably, a support frame for supporting the mounting frame is provided on the upper end side of the sliding column, and a second telescopic cylinder for controlling the lifting of the second electric push rod is provided on the upper end of the mounting frame, and an output shaft is provided on the second telescopic cylinder, and the output shaft of the second telescopic cylinder passes through the upper end of the mounting frame and extends to the lower end to control the lifting of the second electric push rod, and a pressure block for limiting and fixing the side of the sealing ring blank is provided at the lower end of the support frame, and the second electric push rod passes through the upper end of the support frame and extends to the lower end to control the lifting of the pressure block, and a protective pad for protecting the sealing ring blank is provided at the lower end of the pressure block. The second electric push rod is controlled to move up and down by setting the second telescopic cylinder to drive the pressure block to move synchronously to adjust the tightness of the sealing ring blank, so that the pressure block can be used to fix sealing ring blanks of different thicknesses, and the sealing ring blank can be protected by setting the protective pad to avoid the sealing ring blank being crushed by excessive pressure.

[0009] Preferably, the cutting assembly includes a first threaded rod, a second slider, a first drive motor, a third telescopic cylinder, a third electric push rod, a crossbeam, a second threaded rod, a third slider, a second drive motor, a third drive motor, a rotating shaft and a cutting head. The first threaded rod is symmetrically arranged in two groups, and the outer sides of the two groups of first threaded rods are both sleeved with second sliders for sliding. The first drive motor drives the first threaded rod to rotate to drive the second slider to slide along its surface. In the process of the first slider sliding along the surface of the first threaded rod, it can drive the cutting head to move synchronously to adjust its position.

[0010] Preferably, a third telescopic cylinder for controlling the lifting of the third electric push rod is provided at the upper end of the second slider, a crossbeam for increasing stability is fixedly connected between the upper ends of the two groups of third electric push rods, a second threaded rod for rotation is provided along the lower edge of the crossbeam, a third slider for sliding is sleeved on the outer side of the second threaded rod, an output shaft is provided on the second drive motor, the output shaft of the second drive motor passes through the outer side of the third electric push rod and extends to the inner side to drive the second threaded rod to rotate, and the second drive motor is arranged to drive the second threaded rod to rotate, so that the second threaded rod can drive the third slider to slide along its surface during rotation to drive the cutting head to move left and right to adjust the position.

[0011] Preferably, a third driving motor for driving the rotating shaft to rotate is provided at the lower end of the third slider, and a cutting head for cutting the sealing ring is provided at the lower end of the rotating shaft. The cutting head and the rotating shaft are detachably connected via a nut, and the third driving motor drives the cutting head to rotate by driving the rotating shaft to perform synchronous rotation and cutting. By arranging the cutting head and the rotating shaft to be detachably connected via nuts, the cutting head can be replaced according to different sealing ring blanks or different cutting requirements.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional sealing ring cutting equipment, which is usually fixed, it is not convenient to adjust according to the sealing rings of different sizes and thicknesses, resulting in limited positioning effect. By setting a positioning component that can perform circumferential positioning on the sealing ring blank, the side of the sealing ring blank can be pressed and fixed in a surrounding manner, which is more adapted to the shape of the sealing ring blank, thereby making the positioning more accurate and stable. In addition, by setting the positioning component into an adjustable structure, it can be suitable for cutting sealing ring blanks of different sizes and thicknesses. By setting a column and a sliding column arranged around the column, it can be used to cooperate to support the middle and side of the sealing ring blank respectively. By setting a first telescopic cylinder, the first electric push rod can be controlled. The slider moves, so that the first slider can drive the sliding column to move synchronously to adjust the distance between the sliding column and the column. By adjusting the distance between the sliding column and the column, the column and the sliding column can be used to support sealing ring blanks of different sizes. By setting a support frame with a pressure block on the side of the sliding column, the side of the sealing ring blank can be pressed and fixed. By setting a second telescopic cylinder, the second electric push rod can be controlled to move up and down, so that the second electric push rod can drive the pressure block to move synchronously to adjust the tightness of pressing the sealing ring blank. The pressure block that can be used to adjust the pressing tightness can be used to fix sealing ring blanks of different thicknesses. The positioning component that can adapt to sealing ring blanks of different sizes and thicknesses is more convenient and practical.

[0014] By setting an adjustable cutting component, the cutting can be performed according to the sealing ring blanks of different sizes and thicknesses and different cutting requirements. By setting a first driving motor, the first threaded rod can be driven to rotate, so that the first threaded rod can drive the second slider to slide along its surface during the rotation to drive the cutting head to move forward and backward to adjust its position. By setting a third telescopic cylinder, the third electric push rod can be controlled to drive the cutting head to move up and down synchronously to adjust its height. By setting a second driving motor, the second threaded rod can be driven to rotate, so that the second threaded rod can drive the third slider to slide along its surface during the rotation to drive the cutting head to move left and right to adjust the position. By setting a third driving motor, the rotating shaft can be driven to rotate, so that the rotating shaft can drive the cutting head to rotate synchronously to cut the sealing ring blank. By setting the cutting head and the rotating shaft to be detachably connected through a nut, the cutting head can be replaced according to different sealing ring blanks or different cutting requirements. The cutting component that can be adjusted and can replace the cutting head is more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is the overall schematic diagram of the annular positioning sealing ring segmentation device of the utility model;

[0016] Figure 2 Shown is a schematic diagram of a sealing ring blank in the annularly positionable sealing ring cutting device of the utility model;

[0017] Figure 3 Shown is a schematic diagram of a positioning component in the annular positioning sealing ring segmentation device of the utility model;

[0018] Figure 4 Shown is a schematic diagram of a pressing block in the annularly positionable sealing ring segmentation device of the utility model;

[0019] Figure 5 Shown is a schematic diagram of the cutting assembly in the annularly positionable sealing ring cutting device of the present invention.

[0020] Explanation of the accompanying drawings: 1. workbench; 2. positioning assembly; 3. cutting assembly; 4. first slide; 5. second slide; 6. support column; 7. support seat; 201. column; 202. slide column; 203. sealing ring blank; 204. first slider; 205. fixing block; 206. first electric push rod; 207. first telescopic cylinder; 208. support frame; 209. mounting frame; 210. second telescopic cylinder; 211. second electric push rod; 212. pressure block; 213. protection pad; 301. first threaded rod; 302. second slider; 303. first drive motor; 304. third telescopic cylinder; 305. third electric push rod; 306. crossbeam; 307. second threaded rod; 308. third slider; 309. second drive motor; 310. third drive motor; 311. rotating shaft; 312. cutting head. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1 The utility model provides an embodiment: a sealing ring cutting device capable of annular positioning, comprising a workbench 1, a positioning assembly 2, a cutting assembly 3, a support column 6 and a support seat 7. A positioning assembly 2 for annularly positioning and fixing the sealing ring is provided at the middle part of the upper end of the workbench 1, a cutting assembly 3 for cutting the sealing ring is provided above the positioning assembly 2, four groups of second slide grooves 5 for sliding of the positioning assembly 2 are provided around the middle part of the upper end of the workbench 1, two groups of first slide grooves 4 for sliding of the cutting assembly 3 are provided symmetrically on the upper side of the workbench 1, support columns 6 for support are provided around the four corners of the lower end of the workbench 1, and a support seat 7 for increasing stability is provided at the lower end of the support column 6.

[0023] See also Figure 2-4In this embodiment, the positioning assembly 2 includes a column 201, a slide column 202, a sealing ring blank 203, a first slider 204, a fixing block 205, a first electric push rod 206, a first telescopic cylinder 207, a support frame 208, a mounting frame 209, a second telescopic cylinder 210, a second electric push rod 211, a pressing block 212 and a protective pad 213. A sealing ring blank 203 for processing is placed on the upper end of the column 201. Four groups of slide columns 202 for supporting the sides of the sealing ring blank 203 are arranged around the lower end side of the sealing ring blank 203. The lower end of the slide column 202 is provided with a first slide for sliding along the second slide groove 5. The slider 204 can be used to support the middle and sides of the sealing ring blank 203 by setting the column 201 and the sliding column 202 arranged around the column 201. The first slider 204 is connected to the first telescopic cylinder 207 through the first electric push rod 206. The first telescopic cylinder 207 controls the first electric push rod 206 to drive the first slider 204 to move to adjust the distance between the sliding column 202 and the column 201. A fixed block 205 for increasing the connection stability is provided between the sliding column 202 and the first electric push rod 206. The first telescopic cylinder 207 is set to control the first electric push rod 206 to drive the first slider 204 is moved to adjust the distance between the sliding column 202 and the column 201, so that the column 201 and the sliding column 202 can be used to support the sealing ring blanks 203 of different sizes. The upper end side of the sliding column 202 is provided with a support frame 208 for supporting the mounting frame 209. The upper end of the mounting frame 209 is provided with a second telescopic cylinder 210 for controlling the lifting of the second electric push rod 211. The second telescopic cylinder 210 is provided with an output shaft. The output shaft of the second telescopic cylinder 210 passes through the upper end of the mounting frame 209 and extends to the lower end to control the lifting of the second electric push rod 211. The lower end of the support frame 208 is provided with a A pressure block 212 is used for limiting and fixing, and a second electric push rod 211 passes through the upper end of the support frame 208 and extends to the lower end to control the lifting of the pressure block 212. A protection pad 213 is provided at the lower end of the pressure block 212 for protecting the sealing ring blank 203. The second telescopic cylinder 210 is set to control the second electric push rod 211 to move up and down to drive the pressure block 212 to move synchronously to adjust the tightness of pressing the sealing ring blank 203, so that the pressure block 212 can be used to fix the sealing ring blanks 203 of different thicknesses. The sealing ring blank 203 can be protected by setting the protection pad 213 to avoid the sealing ring blank 203 being crushed by excessive pressure.

[0024] See also Figure 5In this embodiment, the cutting assembly 3 includes a first threaded rod 301, a second slider 302, a first drive motor 303, a third telescopic cylinder 304, a third electric push rod 305, a crossbeam 306, a second threaded rod 307, a third slider 308, a second drive motor 309, a third drive motor 310, a rotating shaft 311 and a cutting head 312. The first threaded rod 301 is symmetrically provided with two groups, and the outer sides of the two groups of first threaded rods 301 are both sleeved with second sliders 302 for sliding. The first drive motor 303 drives the first threaded rod 301 to move the first threaded rod 301 to move the second drive motor 303. The first threaded rod 301 is driven to rotate to drive the second slider 302 to slide along its surface. During the sliding process of the first slider 204 along the surface of the first threaded rod 301, the cutting head 312 can be driven to move synchronously to adjust its position. The upper end of the second slider 302 is provided with a third telescopic cylinder 304 for controlling the lifting of the third electric push rod 305. A crossbeam 306 for increasing stability is fixedly connected between the upper ends of the two groups of third electric push rods 305. A second threaded rod 307 for rotation is provided along the lower edge of the crossbeam 306. A third slider 308 for sliding is sleeved on the outer side of the second threaded rod 307. An output shaft is provided on the second driving motor 309. The output shaft of the second driving motor 309 passes through the outer side of the third electric push rod 305 and extends to the inner side to drive the second threaded rod 307 to rotate. By setting the second driving motor 309 to drive the second threaded rod 307 to rotate, the second threaded rod 307 can drive the third slider 308 to slide along its surface during the rotation process to drive the cutting head 312 to move left and right to adjust the position. A third driving motor 310 is provided at the lower end for driving the rotating shaft 311 to rotate. A cutting head 312 for cutting the sealing ring is provided at the lower end of the rotating shaft 311. The cutting head 312 is detachably connected to the rotating shaft 311 via a nut. The third driving motor 310 drives the cutting head 312 to perform synchronous rotation and cutting by driving the rotating shaft 311 to rotate. By arranging the cutting head 312 and the rotating shaft 311 to be detachably connected via nuts, the cutting head 312 can be replaced according to different sealing ring blanks 203 or different cutting requirements.

[0025] When working, first place the workbench 1 on a stable ground, then adjust the slide column 202 to a suitable position according to the size of the sealing ring blank 203 to be cut, and control the first electric push rod 206 to drive the first slider 204 to move through the first telescopic cylinder 207, so that the slider drives the slide column 202 to move synchronously and adjust it to a suitable position;

[0026] Then, the sealing ring blank 203 to be cut is placed on the upper ends of the column 201 and the sliding column 202, so that the column 201 and the sliding column 202 support the middle and sides of the sealing ring blank 203 respectively;

[0027] The second telescopic cylinder 210 controls the second electric push rod 211 to move downward, so that the second electric push rod 211 drives the pressing block 212 to move synchronously, so that the four groups of pressing blocks 212 surround and press the side of the sealing ring blank 203;

[0028] Then, the fixed sealing ring blank 203 is cut by the cutting assembly 3, and the first threaded rod 301 is driven to rotate by the first driving motor 303, so that the first threaded rod 301 drives the second slider 302 to slide along its surface during the rotation process, thereby driving the cutting head 312 to move forward and backward to adjust its position;

[0029] The third telescopic cylinder 304 controls the third electric push rod 305 to drive the cutting head 312 to move up and down synchronously to adjust its height;

[0030] Then, the second driving motor 309 drives the second threaded rod 307 to rotate, so that the second threaded rod 307 drives the third slider 308 to slide along its surface during the rotation process, thereby driving the cutting head 312 to move left and right to adjust the position;

[0031] Finally, the third driving motor 310 drives the rotating shaft 311 to rotate, so that the rotating shaft 311 drives the cutting head 312 to rotate synchronously to cut the sealing ring blank 203;

[0032] During the cutting process, the first drive motor 303 , the third telescopic cylinder 304 , the second drive motor 309 and the third drive motor 310 cooperate with each other to move the cutting head 312 to different positions to cut different positions of the sealing ring blank 203 .

[0033] Through the above steps, the staff first places the workbench 1 on a stable ground, and then adjusts the slide column 202 to a suitable position according to the size of the sealing ring blank 203 to be cut, and controls the first electric push rod 206 through the first telescopic cylinder 207 to drive the first slider 204 to move, so that the slider drives the slide column 202 to move synchronously to adjust it to a suitable position, and sets the first telescopic cylinder 207 to control the first electric push rod 206 and the first slider 204 to move, so that the first slider 204 drives the slide column 202 to move synchronously to adjust the distance between the slide column 202 and the column 201, so that the column 201 and the slide column 202 can be used to support sealing ring blanks 203 of different sizes. , and then place the sealing ring blank 203 to be cut on the upper ends of the column 201 and the sliding column 202, so that the column 201 and the sliding column 202 support the middle and side of the sealing ring blank 203 respectively, and then control the second electric push rod 211 to move downward through the second telescopic cylinder 210, so that the second electric push rod 211 drives the pressing block 212 to move synchronously, so that the four groups of pressing blocks 212 surround and press the side of the sealing ring blank 203, and use the pressing block 212 to circumferentially position and fix the side of the blank assembly, so that it is more adapted to the shape of the sealing ring blank 203, so that the positioning is more accurate and stable, and the second telescopic cylinder 210 is set to control the second electric push rod 211 to move up and down, The second electric push rod 211 can drive the pressing block 212 to move synchronously to adjust the tightness of pressing the sealing ring blank 203. The pressing block 212 that can be used to adjust the tightness of pressing can be used to fix the sealing ring blank 203 with different thicknesses. Then, the fixed sealing ring blank 203 is cut by the cutting component 3. The first threaded rod 301 is driven to rotate by the first driving motor 303, so that the first threaded rod 301 drives the second slider 302 to slide along its surface during the rotation to drive the cutting head 312 to move forward and backward to adjust its position. The third electric push rod 305 is controlled by the third telescopic cylinder 304 to drive the cutting head 312 to move up and down synchronously To adjust its height, and then drive the second threaded rod 307 to rotate through the second driving motor 309, so that the second threaded rod 307 drives the third slider 308 to slide along its surface during the rotation process to drive the cutting head 312 to move left and right to adjust the position, and finally the third driving motor 310 drives the rotating shaft 311 to rotate, so that the rotating shaft 311 drives the cutting head 312 to rotate synchronously to cut the sealing ring blank 203. During the cutting process, the first driving motor 303, the third telescopic cylinder 304, the second driving motor 309 and the third driving motor 310 cooperate with each other to move the cutting head 312 to different positions to cut different positions of the sealing ring blank 203.By setting an adjustable cutting component 3, the sealing ring blank 203 of different sizes and thicknesses and different cutting requirements can be adjusted accordingly for cutting, which is more applicable. Under the mutual cooperation of the positioning component 2 and the cutting component 3, a variety of different cutting requirements can be met, which is more convenient and practical.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A device for cutting a sealing ring capable of being positioned in an annular direction, comprising a workbench (1); characterized in that: The invention also comprises a positioning component (2), a cutting component (3), a support column (6) and a support seat (7). The middle part of the upper end of the workbench (1) is provided with a positioning component (2) for circumferentially positioning and fixing the sealing ring. The cutting component (3) for cutting the sealing ring is provided above the positioning component (2). The middle part of the upper end of the workbench (1) is provided with four groups of second slide grooves (5) for sliding the positioning component (2). The upper end side of the workbench (1) is provided with two groups of first slide grooves (4) for sliding the cutting component (3) in a front-to-back symmetrical manner. The four corners of the lower end of the workbench (1) are provided with support columns (6) for supporting. The lower ends of the support columns (6) are provided with support seats (7) for increasing stability.

2. The circumferentially positionable sealing ring cutting device according to claim 1, characterized in that: The positioning assembly (2) comprises a column (201), a slide column (202), a sealing ring blank (203), a first slider (204), a fixing block (205), a first electric push rod (206), a first telescopic cylinder (207), a support frame (208), a mounting frame (209), a second telescopic cylinder (210), a second electric push rod (211), a pressing block (212) and a protective pad (213); a sealing ring blank (203) for processing is placed on the upper end of the column (201); four groups of slide columns (202) for supporting the sides of the sealing ring blank (203) are arranged around the lower end side of the sealing ring blank (203); and a first slider (204) for sliding along the second slide groove (5) is arranged at the lower end of the slide column (202).

3. The circumferentially positionable sealing ring cutting device according to claim 2, characterized in that: The first sliding block (204) and the first telescopic cylinder (207) are connected in an adjustable manner via a first electric push rod (206); the first telescopic cylinder (207) controls the first electric push rod (206) to drive the first sliding block (204) to move, thereby adjusting the distance between the sliding column (202) and the column (201); a fixing block (205) for increasing connection stability is provided between the sliding column (202) and the first electric push rod (206).

4. The circumferentially positionable sealing ring cutting device according to claim 3, characterized in that: A support frame (208) for supporting a mounting frame (209) is provided on the upper side of the sliding column (202); a second telescopic cylinder (210) for controlling the lifting of a second electric push rod (211) is provided on the upper side of the mounting frame (209); an output shaft is provided on the second telescopic cylinder (210); the output shaft of the second telescopic cylinder (210) passes through the upper end of the mounting frame (209) and extends to the lower end to control the lifting of the second electric push rod (211); a pressing block (212) for limiting and fixing the side of the sealing ring blank (203) is provided at the lower end of the support frame (208); the second electric push rod (211) passes through the upper end of the support frame (208) and extends to the lower end to control the lifting of the pressing block (212); and a protection pad (213) for protecting the sealing ring blank (203) is provided at the lower end of the pressing block (212).

5. The circumferentially positionable sealing ring cutting device according to claim 1, characterized in that: The cutting assembly (3) comprises a first threaded rod (301), a second slider (302), a first drive motor (303), a third telescopic cylinder (304), a third electric push rod (305), a crossbeam (306), a second threaded rod (307), a third slider (308), a second drive motor (309), a third drive motor (310), a rotating shaft (311) and a cutting head (312). The first threaded rod (301) is symmetrically provided with two groups, and the outer sides of the two groups of first threaded rods (301) are both sleeved with second sliders (302) for sliding. The first drive motor (303) drives the first threaded rod (301) to rotate to drive the second slider (302) to slide along the surface thereof.

6. The circumferentially positionable sealing ring cutting device according to claim 5, characterized in that: A third telescopic cylinder (304) for controlling the lifting of a third electric push rod (305) is provided at the upper end of the second slide block (302); a crossbeam (306) for increasing stability is fixedly connected between the upper ends of the two groups of third electric push rods (305); a second threaded rod (307) for rotating is provided along the lower edge of the crossbeam (306); a third slide block (308) for sliding is sleeved on the outer side of the second threaded rod (307); an output shaft is provided on the second drive motor (309); the output shaft of the second drive motor (309) passes through the outer side of the third electric push rod (305) and extends to the inner side to drive the second threaded rod (307) to rotate.

7. The circumferentially positionable sealing ring cutting device according to claim 6, characterized in that: A third driving motor (310) for driving the rotating shaft (311) to rotate is provided at the lower end of the third sliding block (308); a cutting head (312) for cutting the sealing ring is provided at the lower end of the rotating shaft (311); the cutting head (312) and the rotating shaft (311) are detachably connected via a nut; the third driving motor (310) drives the rotating shaft (311) to rotate, thereby driving the cutting head (312) to perform synchronous rotation cutting.

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