Port grinding device for corrugated pipe compensator production

Abstract

The invention relates to the technical field of workpiece grinding equipment, in particular to a port grinding device for corrugated pipe compensator production. The technical problem that when an existing grinding device grinds a port of a corrugated pipe, grinding is not sufficient enough, efficiency is low, and then the grinding effect is poor is solved. A port grinding device for corrugated pipe compensator production comprises an outer frame, one side of the outer frame is rotationally connected with a rotating frame, and one side of the outer frame is fixedly connected with a spring shifting piece. The driving motor drives the two-way threaded shaft and the tooth-missing bevel gear to rotate together, the two-way motor drives the grinding wheel and the single gear to rotate together, the two-way threaded shaft rotates to enable the corrugated pipe and the single gear to move up and down together, and the single gear moves upwards to stir the driven gear to enable the grinding wheel to grind an end opening of the corrugated pipe. And the tooth-missing bevel gear rotates to turn over the corrugated pipe, so that the grinding wheel grinds a port on the other side of the corrugated pipe, the use by workers is more convenient, and the grinding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece grinding equipment, and in particular to a port grinding device for producing a bellows compensator. Background Art

[0002] The bellows compensator is a retractable pipe connected between two pipes. During the production process of the bellows, the ports on both sides of the bellows are prone to be uneven. In order to make the bellows fully contact with the ports of the pipe, the staff usually grind the ports of the bellows. When grinding, the staff often grind the port on one side first, then manually flip the bellows, and then grind the port on the other side of the bellows.

[0003] When the current grinding device is used to grind the port of the bellows, it is not convenient to automatically flip the bellows after grinding one end, which makes it inconvenient for the staff to use, resulting in low grinding efficiency. In addition, both sides of the port of the bellows are prone to produce more burrs after grinding, affecting the flatness. The existing grinding device is not convenient for removing the burrs on both sides of the port of the bellows while grinding, which leads to insufficient grinding and poor grinding effect. Summary of the invention

[0004] In order to overcome the above shortcomings, the present invention provides a port grinding device for the production of bellows compensators, which can automatically flip the bellows to make the work more convenient and can remove burrs during grinding to make the grinding more complete, thereby improving the grinding efficiency and enhancing the grinding effect.

[0005] The technical solution is: a port grinding device for the production of bellows compensators, comprising an outer frame, a rotating frame being rotatably connected to one side of the outer frame, a spring paddle being fixedly connected to one side of the outer frame, the spring paddle being in contact with the rotating frame, a sliding bracket being slidably connected to one side of the rotating frame, the sliding bracket being located inside the outer frame, a bellows being placed on the sliding bracket, a plurality of threaded holes being provided on the sliding bracket and the bellows, bolts being threadedly connected between the sliding bracket and the plurality of threaded holes of the bellows, a driving motor being fixedly connected to the rotating frame, the output shaft of the driving motor being rotatably connected to the rotating frame, a moving and flipping mechanism for moving and flipping the bellows being provided on the driving motor, and a grinding mechanism for grinding the port of the bellows being provided on the outer frame.

[0006] Furthermore, the mobile flipping mechanism includes a missing gear, which is fixedly connected to the output shaft of the driving motor, and the missing gear is located in the rotating frame. The rotating frame is rotatably connected with a two-way threaded shaft, and the two-way threaded shaft is located on one side of the driving motor. The two-way threaded shaft is fixedly connected with a transmission gear, and the missing gear meshes with the transmission gear. The sliding bracket is fixedly connected with a threaded block on the side away from the bellows, and the threaded block is threadedly connected to the two-way threaded shaft. The rotating frame is rotatably connected with a rotating shaft, and the rotating shaft is located on the side of the two-way threaded shaft away from the driving motor. A speed change gear and a missing tooth bevel gear are fixedly connected to the rotating shaft, and the missing tooth bevel gear is located below the speed change gear, and the speed change gear and the missing tooth bevel gear both pass through the rotating frame, and the transmission gear meshes with the speed change gear. A fixed bevel gear is fixedly connected to one side of the inner wall of the outer frame.

[0007] Furthermore, the grinding mechanism includes a gear ring, which is fixedly connected to the top of the inner wall of the outer frame, the gear ring is located above the corrugated tube, a circular slide rail is fixedly connected to the gear ring, a sliding plate is slidably connected to the circular slide rail, one side of the sliding plate is rotatably connected to a rotating shaft, the bottom of the rotating shaft is fixedly connected to a driven gear, the driven gear is meshed with the gear ring, and the other side of the sliding plate is slidably connected to a moving plate, a compression spring is connected between the moving plate and the sliding plate, a bidirectional motor is fixedly connected to the moving plate, the lower end of the output shaft at the bottom of the bidirectional motor is fixedly connected to a grinding wheel, and the upper end of the output shaft at the top of the bidirectional motor is fixedly connected to a single gear.

[0008] Furthermore, a plurality of grinding grooves are evenly formed on the bottom of the grinding wheel.

[0009] Furthermore, it also includes an edge grinding mechanism, which is arranged on the movable plate, and is used to remove burrs on both sides of the bellows port. The edge grinding mechanism includes an arc rod, which is fixedly connected to one side of the movable plate, and a limiting plate is slidably connected to the arc rod, a tension spring is connected between the limiting plate and the arc rod, and the tension spring is sleeved on the arc rod, a slider 1 is slidably connected to one side of the limiting plate, and a slider 2 is slidably connected to the other side of the limiting plate, compression spring 2 is respectively connected between the slider 1 and the slider 2 and the two sides of the limiting plate, and grinding sheets are fixedly connected to the bottoms of the slider 1 and the slider 2.

[0010] Furthermore, it also includes a pull rod, which is fixedly connected to one side of the limit plate. The output shaft at the bottom of the bidirectional motor passes through the pull rod. A cam is fixedly connected to the output shaft at the bottom of the bidirectional motor, and the cam is located above the grinding wheel.

[0011] Furthermore, it also includes a polishing mechanism, which is arranged on the limit plate and is used to polish the port of the bellows. The polishing mechanism includes a fixed slide rail, which is fixedly connected to the side of the limit plate away from the pull rod, and a polishing strip is slidably connected to the fixed slide rail. The end of the arc rod away from the movable plate is fixedly connected to the limit slide rail, and the top of the polishing strip is slidably connected to the limit slide rail.

[0012] Furthermore, the polishing strip is made of ceramic material.

[0013] The beneficial effect of the present invention is that the present invention drives the missing gear, the two-way threaded shaft and the missing tooth bevel gear to rotate together through the driving motor, the two-way motor drives the grinding wheel and the single gear to rotate at high speed together, the two-way threaded shaft rotates through the threaded block so that the bellows squeezes the grinding wheel and the single gear to move upward together, and the single gear moves upward to drive the driven gear to rotate, and the driven gear rotates through the gear ring so that the grinding wheel moves around the port of the bellows for grinding. After the grinding wheel moves one circle, the two-way threaded shaft continues to rotate so that the bellows resets downward and no longer squeezes the grinding wheel, and the compression spring resets so that the single gear and the grinding wheel reset downward together and no longer move, and the missing tooth bevel gear continues to rotate through the fixed bevel gear so that the rotating frame, the driving motor and the bellows flip together, and then the two-way threaded shaft continues to rotate so that the flipped bellows moves upward, and then the grinding wheel grinds the other end of the bellows, so that the grinding wheel can grind the ports on both sides of the bellows more quickly, which is more convenient for staff to use, thereby improving the grinding efficiency.

[0014] 2. Before the port of the bellows contacts the grinding wheel, the outer side and the inner side of the port of the bellows will contact the two grinding discs respectively first, and then the bellows will squeeze the slider 1 and the slider 2 to move obliquely to both sides when contacting the grinding wheel, and then the movement of the moving plate will make the slider 1, the slider 2 and the grinding disc move together, and under the action of the compression spring 2, the slider 1 and the slider 2 will respectively press the two grinding discs to both sides of the bellows port, so that the grinding disc can fully grind the burrs on both sides of the bellows port, and the rotation of the output shaft of the bidirectional motor will drive the cam to rotate, and the rotation of the cam will squeeze the pull rod to make the limit plate and the grinding disc move back and forth along the arc rod, so that the grinding disc can grind the burrs on both sides of the bellows port more fully, and then make the two sides of the bellows port smoother, so as to achieve better grinding effect.

[0015] 3. When the bellows moves upward, the port of the bellows will contact the bottom of the polishing strip. The reciprocating movement of the limit plate will drive the polishing strip to move reciprocatingly. The polishing strip will reciprocate laterally to both sides of the port of the bellows through the limit slide rail, so that the polishing strip can more fully polish the ground port of the bellows, making the port of the bellows smoother and enhancing the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the mobile flipping mechanism of the present invention.

[0019] Figure 4 It is a partially cutaway three-dimensional structural schematic diagram of the mobile flipping mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of a partially disassembled three-dimensional structure of the mobile flipping mechanism of the present invention.

[0021] Figure 6 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0023] Figure 8 It is a partial three-dimensional structural schematic diagram of the grinding mechanism of the present invention.

[0024] Fig. 9 It is a partial three-dimensional structural schematic diagram of the edge grinding mechanism, pull rod and cam of the present invention.

[0025] Fig.10 It is a partial three-dimensional structural schematic diagram of the edge grinding mechanism and the polishing mechanism of the present invention.

[0026] Fig.11 It is a schematic diagram of the partially disassembled three-dimensional structure of the edge grinding mechanism and the polishing mechanism of the present invention.

[0027] Figure numbers: 1: outer frame, 2: rotating frame, 21: spring paddle, 3: sliding bracket, 4: bellows, 5: bolt, 6: driving motor, 71: missing gear, 72: bidirectional threaded shaft, 73: transmission gear, 74: threaded block, 75: rotating shaft, 76: speed change gear, 77: missing tooth bevel gear, 78: fixed bevel gear, 81: gear ring, 82: circular slide rail, 83: sliding plate, 84: rotating shaft, 85: driven gear, 86: moving plate, 87: compression spring one, 88: bidirectional motor, 89: grinding wheel, 810: single gear, 91: arc rod, 92: limit plate, 93: tension spring, 94: slider one, 95: slider two, 96: compression spring two, 97: grinding sheet, 10: pull rod, 11: cam, 121: fixed slide rail, 122: polishing strip, 123: limit slide rail. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Embodiment 1: A port grinding device for producing a bellows compensator, such as Figure 1-Figure 11 As shown, it includes an outer frame 1, one side of the outer frame 1 is rotatably connected to a rotating frame 2, one side of the outer frame 1 is connected to a spring paddle 21 by bolts, the spring paddle 21 is in contact with the rotating frame 2, and the spring paddle 21 is used to limit the free rotation of the rotating frame 2, one side of the rotating frame 2 is slidably connected to a sliding bracket 3, the sliding bracket 3 is located inside the outer frame 1, a bellows 4 is placed on the sliding bracket 3, a plurality of threaded holes are opened on the sliding bracket 3 and the bellows 4, bolts 5 are threadedly connected between the sliding bracket 3 and the plurality of threaded holes of the bellows 4, the sliding bracket 3 is used to flip and move the bellows 4, a driving motor 6 is connected to the rotating frame 2 by bolts, the output shaft of the driving motor 6 is rotatably connected to the rotating frame 2, a moving and flipping mechanism for moving and flipping the bellows 4 is provided on the driving motor 6, and a grinding mechanism for grinding the port of the bellows 4 is provided on the outer frame 1.

[0030] The mobile flip mechanism includes a missing gear 71, which is connected to the output shaft of the drive motor 6 through a flat key. The missing gear 71 is located in the rotating frame 2. A two-way threaded shaft 72 is rotatably connected to the rotating frame 2. The two-way threaded shaft 72 is located on one side of the drive motor 6. A transmission gear 73 is connected to the two-way threaded shaft 72 through a flat key. The missing gear 71 is meshed with the transmission gear 73. A threaded block 74 is connected to the side of the sliding bracket 3 away from the bellows 4 through a bolt. The threaded block 74 is threadedly connected to the two-way threaded shaft 72. A rotating shaft 75 is rotatably connected to the moving frame 2, and the rotating shaft 75 is located on the side of the bidirectional threaded shaft 72 away from the driving motor 6. A speed change gear 76 and a toothless bevel gear 77 are connected to the rotating shaft 75 via a flat key, and the toothless bevel gear 77 is located below the speed change gear 76. The speed change gear 76 and the toothless bevel gear 77 both pass through the rotating frame 2, and the transmission gear 73 is meshed with the speed change gear 76. A fixed bevel gear 78 is connected to one side of the inner wall of the outer frame 1 via bolts, and the toothless bevel gear 77 is used to flip the bellows 4 through the fixed bevel gear 78.

[0031] The grinding mechanism includes a gear ring 81, which is connected to the top of the inner wall of the outer frame 1 by bolts, and the gear ring 81 is located above the bellows 4. A circular slide rail 82 is connected to the gear ring 81 by bolts, and a sliding plate 83 is slidably connected to the circular slide rail 82. A rotating shaft 84 is rotatably connected to one side of the sliding plate 83, and a driven gear 85 is connected to the bottom of the rotating shaft 84 by a flat key. The driven gear 85 meshes with the gear ring 81, and a moving plate 86 is slidably connected to the other side of the sliding plate 83. A compression spring 87 is connected between the moving plate 86 and the sliding plate 83. A bidirectional motor 88 is connected to the moving plate 86 by bolts, and a grinding wheel 89 is connected to the lower end of the output shaft at the bottom of the bidirectional motor 88 by bolts. The grinding wheel 89 is used to grind the port of the bellows 4, and a single gear 810 is connected to the upper end of the output shaft at the top of the bidirectional motor 88 by a flat key.

[0032] The bottom of the grinding wheel 89 is evenly provided with a plurality of grinding grooves, and the grinding grooves of the grinding wheel 89 can better grind the port of the bellows 4 .

[0033] First, the staff fixes the bellows 4 on the sliding bracket 3 by bolts 5, and then the staff starts the driving motor 6 and the bidirectional motor 88. The output shaft of the driving motor 6 rotates to drive the missing gear 71 to rotate. The high-speed rotation of the output shaft of the bidirectional motor 88 will drive the grinding wheel 89 and the single gear 810 to rotate at high speed together. The rotation of the missing gear 71 will drive the bidirectional threaded shaft 72, the rotating shaft 75, the speed gear 76 and the missing tooth bevel gear 77 to rotate together through the transmission gear 73. The rotation of the bidirectional threaded shaft 72 will first drive the sliding bracket 3 and the bellows 4 to move upward through the threaded block 74. The bellows 4 moves upward and will first contact the bottom of the rotating grinding wheel 89. Then the bellows 4 continues to move upward to squeeze the grinding wheel 89, the bidirectional motor 88 and the single gear 81 0 and the movable plate 86 move upward together, and under the action of the compression spring 87, the grinding wheel 89 applies downward pressure to the port of the bellows 4, so that the subsequent grinding is more sufficient, thereby enhancing the grinding effect. At the same time, the missing gear 71 is disengaged from the transmission gear 73, so that the two-way threaded shaft 72, the rotating shaft 75, the speed gear 76 and the toothless bevel gear 77 no longer rotate, and then the bellows 4 is no longer moved through the threaded block 74, and the single gear 810 moves upward and is parallel to the driven gear 85. The high-speed rotating single gear 810 will drive the driven gear 85 to rotate, and the rotation of the driven gear 85 will drive the sliding plate 83, the movable plate 86, the two-way motor 88 and the grinding wheel 89 to move around the port of the bellows 4 through the gear ring 81, and the high-speed rotating grinding The movement of the cutting wheel 89 will grind the port of the bellows 4. After the grinding wheel 89 moves one circle, the missing gear 71 rotates and meshes with the transmission gear 73 again. The rotation of the missing gear 71 will drive the bidirectional threaded shaft 72, the speed gear 76 and the toothless bevel gear 77 to continue to rotate through the transmission gear 73. The continued rotation of the bidirectional threaded shaft 72 will reset the bellows 4 downward through the threaded block 74, and the bellows 4 will no longer squeeze the grinding wheel 89. The compression spring 87 resets and drives the bidirectional motor 88, the moving plate 86, the grinding wheel 89 and the single gear 810 to reset downward together. The single gear 810 resets and disengages from the driven gear 85, so that the grinding wheel 89 no longer moves. The missing gear 71 continues to rotate to rotate the toothless bevel gear 77, and the rotation of the toothless bevel gear 77 will engage with the fixed bevel gear 78 meshes, the toothless bevel gear 77 continues to rotate through the fixed bevel gear 78 and the rotating shaft 75 to flip the rotating frame 2. The flipping of the rotating frame 2 causes the drive motor 6, the sliding bracket 3 and the bellows 4 to flip together. During the flipping process, the two-way threaded shaft 72 rotates through the threaded block 74 and the sliding bracket 3 to drive the bellows 4 to move to the other side of the two-way threaded shaft 72, so that the horizontal position of the flipped bellows 4 is parallel to the initial horizontal position, and then the toothless gear 71 continues to rotate through the two-way threaded shaft 72 and the threaded block 74 to move the flipped bellows 4 upward, so that the grinding wheel 89 grinds the other end of the bellows 4. In this way, the grinding wheel 89 can grind the ports on both sides of the bellows 4 more quickly, which is more convenient for the staff to use.Thereby improving the grinding efficiency, after the grinding is finished, the staff turns off the bidirectional motor 88 and the drive motor 6, and then removes the bolt 5 and the bellows 4 from the sliding bracket 3.

[0034] Embodiment 2: Based on embodiment 1, Figure 7-Figure 9 As shown, it also includes an edge grinding mechanism, which is arranged on the movable plate 86, and is used to remove burrs on both sides of the port of the bellows 4. The edge grinding mechanism includes an arc rod 91, which is welded on one side of the movable plate 86, and a limiting plate 92 is slidably connected to the arc rod 91. A tension spring 93 is connected between the limiting plate 92 and the arc rod 91 through a hook, and the tension spring 93 is sleeved on the arc rod 91. A slider 1 94 is slidably connected to one side of the limiting plate 92, and a slider 2 95 is slidably connected to the other side of the limiting plate 92. Compression spring 2 96 is connected between the slider 1 94 and the slider 2 95 and the two sides of the limiting plate 92 respectively, and a grinding sheet 97 is fixedly connected to the bottom of the slider 1 94 and the slider 2 95, and the grinding sheet 97 is used to grind both sides of the port of the bellows 4.

[0035] It also includes a pull rod 10, which is welded to one side of the limit plate 92. The output shaft at the bottom of the bidirectional motor 88 passes through the pull rod 10. A cam 11 is connected to the output shaft at the bottom of the bidirectional motor 88 by bolts. The cam 11 is located above the grinding wheel 89, and the cam 11 is used to squeeze the pull rod 10.

[0036] Before the port of the bellows 4 contacts the grinding wheel 89, the outer side and the inner side of the port of the bellows 4 will contact the two grinding discs 97 respectively first, and then when the bellows 4 moves upward and contacts the grinding wheel 89, the bellows 4 will squeeze the slider 1 94 and the slider 2 95 to move obliquely to both sides through the two grinding discs 97, and the compression spring 2 96 is compressed. Then the movement of the moving plate 86 will drive the limit plate 92, the slider 1 94, the slider 2 95 and the grinding disc 97 to move together through the arc rod 91 and the tension spring 93. Under the action of the compression spring 2 96, the slider 1 94 and the slider 2 95 respectively apply pressure to the two grinding discs 97 on both sides of the port of the bellows 4, so that the grinding disc 97 can fully grind the burrs on both sides of the port of the bellows 4. The rotation of the output shaft of the bidirectional motor 88 will drive the cam 11 to rotate. The rotation of the cam 11 will first contact the pull rod 10, and then the cam 11 will continue to Continuous rotation will squeeze the pull rod 10 to make the limit plate 92 and the grinding sheet 97 move along the arc rod 91 toward the direction of the bidirectional motor 88, and the tension spring 93 will be pulled. Then the cam 11 continues to rotate and no longer squeezes and disengages from the pull rod 10. The reset of the tension spring 93 will drive the limit plate 92 and the grinding sheet 97 to reset. Repeat this process. The rotation of the cam 11 will squeeze the pull rod 10 to make the limit plate 92, slider 1 94, slider 2 95 and the grinding sheet 97 move back and forth along the arc rod 91 together, so that the grinding sheet 97 can grind the burrs on both sides of the port of the bellows 4 more fully, so that the two sides of the port of the bellows 4 are smoother, thereby achieving better grinding effect. When the bellows 4 is reset downward, the bellows 4 no longer squeezes and contacts the grinding sheet 97, and the compression spring 2 96 resets to drive the slider 1 94, slider 2 95 and the grinding sheet 97 to reset together.

[0037] Embodiment 3: Based on embodiment 2, Figure 7-Figure 11 As shown, a polishing mechanism is also included, which is arranged on the limit plate 92. The polishing mechanism is used to polish the port of the bellows 4. The polishing mechanism includes a fixed slide rail 121. The fixed slide rail 121 is welded to the side of the limit plate 92 away from the pull rod 10. A polishing strip 122 is slidably connected to the fixed slide rail 121. The polishing strip 122 is used to polish the port of the bellows 4. A limiting slide rail 123 is welded to the end of the arc rod 91 away from the movable plate 86. The top of the polishing strip 122 is slidably connected to the limiting slide rail 123. The limiting slide rail 123 is used to squeeze the polishing strip 122 to move laterally.

[0038] The polishing strip 122 is made of ceramic material, and the polishing strip 122 made of ceramic material can polish the end of the bellows 4 to be smoother.

[0039] When the bellows 4 moves upward, the port of the bellows 4 will contact the bottom of the polishing strip 122, and the reciprocating movement of the limit plate 92 will drive the polishing strip 122 to move reciprocally. The reciprocating movement of the polishing strip 122 will first move laterally to the outside of the port of the bellows 4 through the limit slide rail 123, and then the polishing strip 122 will reset and move to the inside of the port of the bellows 4 through the limit slide rail 123. Repeat this process, and the polishing strip 122 will reciprocate laterally to both sides of the port of the bellows 4 through the limit slide rail 123 while moving back and forth, so that the polishing strip 122 can more fully polish the ground port of the bellows 4, thereby making the port of the bellows 4 smoother, thereby enhancing the grinding effect.

[0040] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A port grinding device for producing a bellows compensator, characterized in that: The invention comprises an outer frame (1), one side of the outer frame (1) is rotatably connected to a rotating frame (2), one side of the outer frame (1) is fixedly connected to a spring pick (21), the spring pick (21) contacts the rotating frame (2), one side of the rotating frame (2) is slidably connected to a sliding bracket (3), the sliding bracket (3) is located inside the outer frame (1), a bellows (4) is placed on the sliding bracket (3), a plurality of threaded holes are formed on the sliding bracket (3) and the bellows (4), bolts (5) are threadedly connected between the plurality of threaded holes of the sliding bracket (3) and the bellows (4), a driving motor (6) is fixedly connected to the rotating frame (2), an output shaft of the driving motor (6) is rotatably connected to the rotating frame (2), a moving and flipping mechanism for moving and flipping the bellows (4) is provided on the driving motor (6), and a grinding mechanism for grinding a port of the bellows (4) is provided on the outer frame (1); The movable flipping mechanism comprises a missing gear (71), the missing gear (71) being fixedly connected to the output shaft of the driving motor (6), the missing gear (71) being located in the rotating frame (2), the rotating frame (2) being rotatably connected to a bidirectional threaded shaft (72), the bidirectional threaded shaft (72) being located on one side of the driving motor (6), the bidirectional threaded shaft (72) being fixedly connected to a transmission gear (73), the missing gear (71) being meshed with the transmission gear (73), and a threaded block (74) being fixedly connected to a side of the sliding bracket (3) away from the corrugated pipe (4), the threaded block (74) being in contact with the bidirectional threaded shaft (73). The threaded shaft (72) is connected by a threaded connection, and a rotating shaft (75) is rotatably connected to the rotating frame (2). The rotating shaft (75) is located on a side of the bidirectional threaded shaft (72) away from the driving motor (6). A speed change gear (76) and a toothless bevel gear (77) are fixedly connected to the rotating shaft (75). The toothless bevel gear (77) is located below the speed change gear (76). Both the speed change gear (76) and the toothless bevel gear (77) pass through the rotating frame (2). The transmission gear (73) meshes with the speed change gear (76). A fixed bevel gear (78) is fixedly connected to one side of the inner wall of the outer frame (1).

2. A port grinding device for producing a bellows compensator according to claim 1, characterized in that: The grinding mechanism comprises a gear ring (81), the gear ring (81) being fixedly connected to the top of the inner wall of the outer frame (1), the gear ring (81) being located above the bellows (4), the gear ring (81) being fixedly connected to a circular slide rail (82), the circular slide rail (82) being slidably connected to a sliding plate (83), one side of the sliding plate (83) being rotatably connected to a rotating shaft (84), the bottom of the rotating shaft (84) being fixedly connected to a driven gear (85), the driven gear (85) being meshed with the gear ring (81), the other side of the sliding plate (83) being slidably connected to a moving plate (86), a compression spring 1 (87) being connected between the moving plate (86) and the sliding plate (83), the moving plate (86) being fixedly connected to a bidirectional motor (88), the lower end of the output shaft at the bottom of the bidirectional motor (88) being fixedly connected to a grinding wheel (89), and the upper end of the output shaft at the top of the bidirectional motor (88) being fixedly connected to a single gear (810).

3. A port grinding device for producing a bellows compensator according to claim 2, characterized in that: The bottom of the grinding wheel (89) is evenly provided with a plurality of grinding grooves.

4. A port grinding device for producing a bellows compensator according to claim 2, characterized in that: The invention also comprises an edge grinding mechanism, which is arranged on the movable plate (86) and is used to remove burrs on both sides of the port of the bellows (4). The edge grinding mechanism comprises an arc rod (91), which is fixedly connected to one side of the movable plate (86), a limit plate (92) is slidably connected to the arc rod (91), a tension spring (93) is connected between the limit plate (92) and the arc rod (91), and the tension spring (93) is sleeved on the arc rod (91), a slider 1 (94) is slidably connected to one side of the limit plate (92), and a slider 2 (95) is slidably connected to the other side of the limit plate (92), a compression spring 2 (96) is connected between the slider 1 (94) and the slider 2 (95) and the two sides of the limit plate (92), and a grinding sheet (97) is fixedly connected to the bottom of the slider 1 (94) and the slider 2 (95).

5. A port grinding device for producing a bellows compensator according to claim 4, characterized in that: It also includes a pull rod (10), the pull rod (10) is fixedly connected to one side of the limit plate (92), the output shaft at the bottom of the bidirectional motor (88) passes through the pull rod (10), and a cam (11) is fixedly connected to the output shaft at the bottom of the bidirectional motor (88), and the cam (11) is located above the grinding wheel (89).

6. A port grinding device for producing a bellows compensator according to claim 5, characterized in that: It also includes a polishing mechanism, which is arranged on the limit plate (92) and is used to polish the port of the bellows (4). The polishing mechanism includes a fixed slide rail (121), which is fixedly connected to a side of the limit plate (92) away from the pull rod (10), and a polishing strip (122) is slidably connected to the fixed slide rail (121). One end of the arc rod (91) away from the movable plate (86) is fixedly connected to the limit slide rail (123), and the top of the polishing strip (122) is slidably connected to the limit slide rail (123).

7. A port grinding device for producing a bellows compensator according to claim 6, characterized in that: The polishing strip (122) is made of ceramic material.

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