Grinding and polishing device for integral stopper rod machining

Abstract

The invention discloses a grinding and polishing device for integral stopper rod machining, and relates to the technical field of stopper rod machining, the grinding and polishing device comprises a connecting rod, a base plate, a lifting block, a cuboid, an elastic telescopic block and a clamping block, one end of the connecting rod is rotatably mounted at the bottom of a clamp, and the base plate is rotatably mounted at the other end of the connecting rod; the lifting block is fixedly installed on the top of the chassis, one end of the cuboid is fixedly installed on the face, close to the square block, of the clamp, the square block is fixedly connected with the other end of the cuboid, the downward pressing action of the lifting block automatically triggers the clamping action of the clamp and the supporting block through mechanical linkage, and the clamping force does not need to be manually and additionally adjusted. The lifting block is pressed downwards to drive the clamp to clamp the bottom of the stopper rod, meanwhile, the square block and the supporting block are in linkage to clamp the top of the stopper rod, a double-fixing structure is formed, the stopper rod is prevented from being bent due to violent shaking, it is ensured that the position of the stopper rod is stable in the grinding process, and then the surface polishing precision and consistency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of stopper rod processing, in particular to a grinding and polishing device for processing an integral stopper rod. Background Art

[0002] The grinding and polishing device for integral stopper rod processing is a surface processing equipment specially designed for integral stopper rods. Its core function is to remove burrs and defects on the surface of the stopper rod through grinding, polishing and other processes, and to improve the surface flatness and smoothness to meet the use requirements.

[0003] The patent with patent publication number CN219053807U involves a first fixed plate, a limiting device, a fixing device, a grinding device and a rotating device. The first fixed plate is provided with a limiting device and a fixing device, and the fixing device is provided with a grinding device and a rotating device. The grinding device is composed of a third electric telescopic rod, a fourth fixed block, a second electric telescopic rod, a fifth fixed block, a grinding block and a brush. The third electric telescopic rod is provided with a fourth fixed block, and the fourth fixed block is movably connected to the fixing device through the third electric telescopic rod. The fourth fixed block is provided with a second electric telescopic rod, and the second electric telescopic rod is provided with a fifth fixed block. The fifth fixed block is provided with a grinding block and a brush; it is not only convenient for limiting and fixing the stopper rod, but also convenient for grinding the surface of the stopper rod to prevent uneven grinding of the stopper rod from affecting the quality of the stopper rod, and at the same time it is convenient to remove debris generated during grinding on the surface of the stopper rod, thereby improving the convenience of grinding the surface of the stopper rod.

[0004] In the above patent, it is convenient to grind the surface of the stopper rod, prevent uneven grinding of the stopper rod from affecting the quality of the stopper rod, and at the same time facilitate removal of debris left on the surface of the stopper rod during grinding, thereby improving the convenience of grinding the surface of the stopper rod. However, there are still problems. The device requires more steps and involves more structures when clamping the stopper rod. When a problem occurs with the equipment, it is difficult to effectively and quickly check the cause of the problem. At the same time, it is difficult to fully adapt to different models of stopper rods, and the scope of use is narrow. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a grinding and polishing device for processing an integral stopper rod, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A grinding and polishing device for processing an integral stopper rod, comprising a clamping device, the clamping device further comprising; Frame: The frame is used to support the device for grinding and polishing the stopper rod, and a placement slot is provided inside the frame; Grinding device: The grinding device is arranged on the top of the frame and is used to grind and polish the stopper rod; Clamp: The clamp is slidably mounted on the top of the frame and is used to clamp the stopper rod; Block: The block is slidably installed on the top of the frame. A supporting block is slidably installed on the side of the block close to the clamp. The supporting block is used to support the longer stopper rod to prevent the stopper rod from shaking randomly during grinding and polishing. When the stopper rod is placed on the lifting block, the lifting block will be pressed downward. When the lifting block moves downward, it drives the chassis to move downward. When the chassis moves downward, it drives the connecting rod to rotate downward.

[0007] According to the above technical solution, the clamping device also includes a connecting rod, a chassis, a lifting block, a cuboid, an elastic telescopic block and a clamping block. One end of the connecting rod is rotatably installed at the bottom of the clamp, the chassis is rotatably installed at the other end of the connecting rod, the lifting block is fixedly installed at the top of the chassis, one end of the cuboid is fixedly installed on a side of the clamp close to the block, the block is fixedly connected to the other end of the cuboid, the fixed end of the elastic telescopic block is fixedly installed at the bottom of the supporting block, and the clamping block is fixedly installed at the free end of the elastic telescopic block. When the clamp moves toward the stopper rod, it will drive the cuboid to move, and when the cuboid moves, it will drive the block to move toward the stopper rod, and when the block moves, it will drive the supporting block to move, and when the supporting block moves, it will clamp the top of the stopper rod.

[0008] According to the above technical solution, a limiting groove is provided on a side of the block close to the fixture, and the clamping block contacts the limiting groove of the block; Among them, the interior of the frame is provided with a buffer device for preventing the impact force of the stopper rod falling when it is too heavy from breaking the connecting rod, and a protective device for protecting the stopper rod during grinding. When the elastic telescopic block is pulled, the clamping block will be driven to move. When the clamping block moves, the limit of the support block will be released, and then the support block will be pulled to move.

[0009] According to the above technical solution, the buffer device includes an elastic telescopic buffer block, a double plate, a large rack and a pull rod, the fixed end of the elastic telescopic buffer block is fixedly installed on the bottom of the inner wall of the placement groove, the free end of the elastic telescopic buffer block is fixedly connected to the chassis, the double plate is divided into a fixed plate and a free plate, the fixed plate of the double plate is fixedly installed on the circumferential surface of the free end of the elastic telescopic buffer block, the large rack is slidably installed on the top of the inner wall of the placement groove of the rack, and the pull rod is fixedly installed on the top of the side of the large rack away from the elastic telescopic buffer block, the fixed plate of the double plate is rotatably connected to the top of the free plate, the elastic telescopic buffer block will move downward when buffered, driving the fixed plate of the double plate to move, and the fixed plate will drive the free plate of the double plate to move when the fixed plate moves. When the double plate descends, its free plate will flip upward, and the large rack cannot affect the free plate of the double plate.

[0010] According to the above technical solution, the buffer device also includes a sliding block, an L-shaped block and an elastic telescopic strip. A No. 1 slide groove is provided on the circumferential surface of the front surface of the frame. The sliding block is slidably installed on the circumferential surface of the frame. The fixed end of the elastic telescopic strip is fixedly installed inside the No. 1 slide groove of the frame. The L-shaped block is fixedly installed at the free end of the elastic telescopic strip. Pull the L-shaped block away from the sliding block and then pull the sliding block upward. The L-shaped block will move to the bottom of the sliding block under the elastic force of the elastic telescopic strip.

[0011] According to the above technical solution, the sliding block contacts the L-shaped block, the free plate of the double plate contacts the large rack, and a clockwork spring is arranged between the free plate and the fixed plate of the double plate. When the L-shaped block moves to the bottom of the sliding block, the staff pulls the pull rod in the direction away from the elastic telescopic buffer block. After the pull rod moves, it drives the large rack to move, and when the large rack moves, the large rack is disengaged from the double plate.

[0012] According to the above technical solution, the protective device includes a fixed block, a small rack, a gear, a fixed bar, a baffle, a square block, a rotating rod and an arc-shaped slide. One end of the fixed block is fixedly mounted on the circumferential surface of the free end of the elastic telescopic buffer block, the small rack is fixedly mounted on the other end of the fixed block, the gear is rotatably mounted inside the frame, one end of the fixed bar is fixedly mounted on the circumferential surface of the gear, the baffle is fixedly mounted on the other end of the fixed bar, the square block is fixedly mounted on the top of the frame, one end of the rotating rod is rotatably mounted on the top of the square block, and the arc-shaped slide is rotatably mounted on the other end of the rotating rod. When the small rack moves downward, it drives the gear to rotate, and when the gear rotates, it drives the fixed bar to rotate. When the fixed bar rotates, it drives the baffle to flip over, and when the baffle flips over, it blocks the plug rod to be polished.

[0013] According to the above technical solution, the small rack is engaged with the gear, and the arc-shaped slide is slidably installed on the side of the baffle plate close to the elastic telescopic buffer block. When the baffle plate flips, the arc-shaped slide will drive the movement. Since the square block is fixedly installed on the top of the frame, when the arc-shaped slide moves, it will slide on the baffle plate under the action of the rotating rod.

[0014] The present invention provides a grinding and polishing device for processing an integral stopper rod. It has the following beneficial effects: (1) In this invention, the downward pressing action of the lifting block automatically triggers the clamping action of the clamp and the support block through mechanical linkage, without the need for manual adjustment of the clamping force, which reduces the complexity of operation and shortens the clamping time. It is suitable for mass production scenarios. The downward pressing action of the lifting block drives the clamp to clamp the bottom of the stopper rod, while the block and the support block are linked to clamp the top of the stopper rod, forming a double fixed structure to prevent the stopper rod from bending due to violent shaking, ensuring the stable position of the stopper rod during the grinding process, thereby improving the surface polishing accuracy and consistency.

[0015] (2) In this invention, the large rack forms a limit for the free plate of the double plate, preventing the elastic telescopic buffer block from bouncing upward, thereby fixing the position of the stopper rod and preventing the stopper rod from loosening due to factors such as vibration during the grinding process, ensuring a stable clamping state, improving processing safety and the grinding quality of the stopper rod, and when the stopper rod generates impact force due to its large weight, the elastic telescopic buffer block absorbs the impact energy by moving downward, preventing the lifting block from being damaged due to excessive instantaneous force, and at the same time reducing the reaction force on the stopper rod, preventing it from being deformed or displaced due to impact, and ensuring the structural stability of the equipment and the accuracy of the stopper rod placement.

[0016] (3) In this invention, when the arc-shaped slide plate flips with the baffle plate, it slides along the surface of the baffle plate under the support of the rotating rod, and simultaneously scrapes off the attached debris and abrasives to prevent the accumulation of foreign matter affecting the protective effect and reduce the frequency of manual cleaning. When the elastic telescopic buffer block is pressed down, the baffle plate is flipped to the grinding area through mechanical linkage to form a physical barrier, which effectively blocks the metal debris, abrasive particles and other foreign matter splashed during the grinding process, avoiding scratches, splash injuries or inhalation risks to the workers, and at the same time isolates the dust generated by grinding to improve the safety of the operating environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure of part A in the middle; Figure 3 Schematic diagram of the fixture and rectangular parallelepiped structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure of part B; Figure 5 This is a schematic diagram of the chassis and lifting block structure of the present invention; Figure 6 This is a schematic diagram of the double plates and large rack structure of the present invention; Figure 7 It is a schematic diagram of the structure of the baffle plate and the arc-shaped slide plate of the present invention.

[0018] In the figure: 1. frame; 2. grinding device; 301. clamp; 302. connecting rod; 303. chassis; 304. lifting block; 305. cuboid; 306. square block; 307. supporting block; 308. elastic telescopic block; 309. clamping block; 401. elastic telescopic buffer block; 402. double plate; 403. large rack; 404. pull rod; 405. sliding block; 406. L-shaped block; 407. elastic telescopic strip; 501. fixed block; 502. small rack; 503. gear; 504. fixed strip; 505. baffle plate; 506. square block; 507. rotating rod; 508. curved slide. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 , one embodiment of the present invention is: a grinding and polishing device for processing an integral stopper rod, comprising a clamping device, the clamping device further comprising; Frame 1: Frame 1 is used to support the device for grinding and polishing the stopper rod, and a placement slot is provided inside the frame 1; Grinding device 2: Grinding device 2 is arranged on the top of the frame 1 and is used to grind and polish the stopper rod; Clamp 301: The clamp 301 is slidably mounted on the top of the frame 1 and is used to clamp the stopper rod; Block 306: Block 306 is slidably mounted on the top of the frame 1. A support block 307 is slidably mounted on one side of the block 306 close to the fixture 301. The support block 307 is used to support a longer stopper rod to prevent the stopper rod from shaking during grinding and polishing. The block 306 and the support block 307 are linked to clamp the top of the stopper rod to form a double fixed structure to prevent the stopper rod from bending due to violent shaking, thereby ensuring the stable position of the stopper rod during the grinding process, thereby improving the surface polishing accuracy and consistency.

[0021] The clamping device also includes a connecting rod 302, a chassis 303, a lifting block 304, a cuboid 305, an elastic telescopic block 308 and a clamping block 309. One end of the connecting rod 302 is rotatably mounted on the bottom of the clamp 301, the chassis 303 is rotatably mounted on the other end of the connecting rod 302, the lifting block 304 is fixedly mounted on the top of the chassis 303, one end of the cuboid 305 is fixedly mounted on a side of the clamp 301 close to the block 306, the block 306 is fixedly connected to the other end of the cuboid 305, the fixed end of the elastic telescopic block 308 is fixedly mounted on the bottom of the supporting block 307, and the clamping block 309 is fixedly mounted on the free end of the elastic telescopic block 308. When the clamp 301 moves toward the stopper rod, it will drive the cuboid 305 to move. When the cuboid 305 moves, it will drive the block 306 to move toward the stopper rod. When the block 306 moves, it will drive the supporting block 307 to move. When the supporting block 307 moves, it will clamp the top of the stopper rod.

[0022] A limiting groove is provided on one side of the block 306 close to the clamp 301. The clamping block 309 contacts the limiting groove of the block 306, pulling the elastic telescopic block 308. When the elastic telescopic block 308 is pulled, the clamping block 309 is driven to move. When the clamping block 309 moves, the limit on the supporting block 307 is released, and then the supporting block 307 is pulled to move.

[0023] When this embodiment is working: put the stopper rod on the lifting block 304 on the top of the frame 1, first adjust it according to the length of the stopper rod, pull the elastic telescopic block 308, when the elastic telescopic block 308 is pulled, it will drive the clamping block 309 to move, when the clamping block 309 moves, it will release the limit of the supporting block 307, and then pull the supporting block 307 to move, thereby restricting the stopper rod, when the stopper rod is placed on the lifting block 304, it will press the lifting block 304 downward, when the lifting block 304 moves downward, it drives the chassis 303 to move downward, when the chassis 303 moves downward, it drives the connecting rod 302 to rotate downward, and the connecting rod 30 2 rotates, driving the clamp 301 to move toward the stopper rod. When the clamp 301 moves, it provides a clamping force to the stopper rod. When the clamp 301 moves toward the stopper rod, it drives the rectangular parallelepiped 305 to move. When the rectangular parallelepiped 305 moves, it drives the square 306 to move toward the stopper rod. When the square 306 moves, it drives the supporting block 307 to move. When the supporting block 307 moves, it clamps the top of the stopper rod to prevent the stopper rod from shaking violently and bending when being polished by the polishing device 2. When the stopper rod is on the lifting block 304, the lifting block 304 provides a certain height for the stopper rod, thereby reducing the unpolished length of the stopper rod.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a buffer device is provided inside the frame 1 for preventing the impact force of the stopper rod falling when it is too heavy from breaking the connecting rod 302, and a protective device for protecting the stopper rod during grinding. The buffer device includes an elastic telescopic buffer block 401, a double plate 402, a large rack 403 and a pull rod 404. The fixed end of the elastic telescopic buffer block 401 is fixedly installed on the bottom of the inner wall of the placement groove, and the free end of the elastic telescopic buffer block 401 is fixedly connected to the chassis 303. The double plate 402 is divided into a fixed plate and a free plate. The fixed end of the double plate 402 The plate is fixedly mounted on the circumferential surface of the free end of the elastic telescopic buffer block 401, the large rack 403 is slidably mounted on the top of the inner wall of the placement groove of the frame 1, and the pull rod 404 is fixedly mounted on the top of the large rack 403 away from the elastic telescopic buffer block 401. The fixed plate of the double plate 402 is rotatably connected to the top of the free plate. The elastic telescopic buffer block 401 absorbs the impact energy by moving downward to avoid damage to the lifting block 304 due to excessive instantaneous force, and at the same time reduces the reaction force on the stopper rod to prevent it from deformation or position displacement due to impact, thereby ensuring the structural stability of the equipment and the placement accuracy of the stopper rod.

[0025] The buffer device also includes a sliding block 405, an L-shaped block 406 and an elastic telescopic strip 407. A No. 1 slide groove is provided on the circumferential surface of the front of the frame 1. The sliding block 405 is slidably mounted on the circumferential surface of the frame 1. The fixed end of the elastic telescopic strip 407 is fixedly mounted inside the No. 1 slide groove of the frame 1. The L-shaped block 406 is fixedly mounted on the free end of the elastic telescopic strip 407. When the L-shaped block 406 is pulled away from the sliding block 405 and then the sliding block 405 is pulled upward, the L-shaped block 406 will move to the bottom of the sliding block 405 under the elastic force of the elastic telescopic strip 407.

[0026] The sliding block 405 contacts the L-shaped block 406, and the free plate of the double plate 402 contacts the large rack 403. A clockwork spring is provided between the free plate and the fixed plate of the double plate 402. When the L-shaped block 406 moves to the bottom of the sliding block 405, the staff pulls the pull rod 404 away from the elastic telescopic buffer block 401. After the pull rod 404 moves, it drives the large rack 403 to move. When the large rack 403 moves, the large rack 403 is out of contact with the double plate 402.

[0027] The protective device includes a fixed block 501, a small rack 502, a gear 503, a fixed bar 504, a baffle 505, a square block 506, a rotating rod 507 and an arc-shaped slide 508. One end of the fixed block 501 is fixedly mounted on the circumferential surface of the free end of the elastic telescopic buffer block 401, the small rack 502 is fixedly mounted on the other end of the fixed block 501, the gear 503 is rotatably mounted inside the frame 1, one end of the fixed bar 504 is fixedly mounted on the circumferential surface of the gear 503, the baffle 505 is fixedly mounted on the other end of the fixed bar 504, the square block 506 is fixedly mounted on the top of the frame 1, one end of the rotating rod 507 is rotatably mounted on the top of the square block 506, and the arc-shaped slide 508 is rotatably mounted on the other end of the rotating rod 507, which effectively blocks foreign matter such as metal debris and abrasive particles that are splashed during the grinding process to avoid scratches, splash injuries or inhalation risks to the staff, while isolating the dust generated by grinding to improve the safety of the operating environment.

[0028] The small rack 502 is engaged with the gear 503, and the arc-shaped slide 508 is slidably mounted on the side of the baffle plate 505 close to the elastic telescopic buffer block 401. When the baffle plate 505 flips over, the arc-shaped slide 508 will be driven to move. Since the square block 506 is fixedly mounted on the top of the frame 1, when the arc-shaped slide 508 moves, it will slide on the baffle plate 505 under the action of the rotating rod 507.

[0029] When this embodiment is working: when the staff puts the stopper rod on the lifting block 304, due to the large weight of the stopper rod, a large impact force will be generated when placing the stopper rod. When the lifting block 304 is suddenly subjected to the impact force from the stopper rod, it will move downward. Due to the action of the elastic telescopic buffer block 401, it is buffered. When the elastic telescopic buffer block 401 is buffered, it will move downward, driving the fixed plate of the double plate 402 to move. When the fixed plate moves, it drives the free plate of the double plate 402 to move. When the double plate 402 drops, its free plate will flip upward, and the large rack 403 cannot affect the free plate of the double plate 402. However, when the impact force of the stopper rod disappears, the double plate 402 will move upward under the elastic force of the elastic telescopic buffer block 401, driving the free plate to move. Since the free plate is rotatably connected to the top of the fixed plate, the fixed plate will be rotated with the large rack 403 forms a limit, and after the large rack 403 limits the free plate, it will prevent the elastic telescopic buffer block 401 from bouncing upward, thereby preventing the stopper rod from loosening. When the stopper rod needs to be removed, the L-shaped block 406 is pulled in the direction away from the sliding block 405, and then the sliding block 405 is pulled upward. The L-shaped block 406 will move toward the bottom of the sliding block 405 under the elastic force of the elastic telescopic bar 407. When the L-shaped block 406 moves to the bottom of the sliding block 405, the staff will pull the pull rod 404 in the direction away from the elastic telescopic buffer block 401. After the pull rod 404 moves, it drives the large rack 403 to move. When the large rack 403 moves, the large rack 403 is disengaged from the double plate 402. When the double plate 402 is disengaged from the large rack 403, the elastic telescopic buffer block 401 is moved upward, thereby causing the stopper rod to leave the bottom of the frame 1.

[0030] When the elastic telescopic buffer block 401 moves downward, it drives the fixed block 501 to move downward. When the fixed block 501 moves downward, it drives the small rack 502 to move downward. When the small rack 502 moves downward, it drives the gear 503 to rotate. When the gear 503 rotates, it drives the fixed bar 504 to rotate. When the fixed bar 504 rotates, it drives the baffle plate 505 to flip. When the baffle plate 505 flips, it blocks the plug rod to be polished, reducing the risk of foreign objects flying out during polishing and causing harm to the staff. At the same time, when the baffle plate 505 flips, it drives the arc slide plate 508 Movement, since the square block 506 is fixedly installed on the top of the frame 1, when the arc-shaped slide plate 508 moves, it will slide on the baffle plate 505 under the action of the rotating rod 507, and the foreign matter on the baffle plate 505 will be removed when the arc-shaped slide plate 508 slides. When the elastic telescopic buffer block 401 moves upward, it will drive the small rack 502 to move upward. When the small rack 502 moves upward, the baffle plate 505 moves downward. When the baffle plate 505 moves downward, the baffle plate 505 moves to the inside of the frame 1, thereby preventing the staff from being affected in observing the surface of the stopper rod.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A grinding and polishing device for processing an integral stopper rod, comprising a frame (1), characterized in that: Also included is a clamping device; The frame (1) is used to support a device for grinding and polishing the stopper rod, and a placement groove is provided inside the frame (1); Grinding device (2): the grinding device (2) is arranged on the top of the frame (1), and the grinding device (2) is used to grind and polish the stopper rod; Clamp (301): the clamp (301) is slidably mounted on the top of the frame (1), and the clamp (301) is used to clamp the stopper rod; Block (306): The block (306) is slidably mounted on the top of the frame (1), and a support block (307) is slidably mounted on a side of the block (306) close to the fixture (301). The support block (307) is used to support a longer stopper rod to prevent the stopper rod from shaking randomly during grinding and polishing; The clamping device comprises a connecting rod (302), a chassis (303) and a lifting block (304), one end of the connecting rod (302) is rotatably mounted on the bottom of the clamp (301), the chassis (303) is rotatably mounted on the other end of the connecting rod (302), and the lifting block (304) is fixedly mounted on the top of the chassis (303).

2. The grinding and polishing device for processing an integral stopper rod according to claim 1, characterized in that: The clamping device further comprises a rectangular parallelepiped (305), an elastic telescopic block (308) and a clamping block (309), one end of the rectangular parallelepiped (305) being fixedly mounted on a side of the clamp (301) close to the block (306), the block (306) being fixedly connected to the other end of the rectangular parallelepiped (305), the fixed end of the elastic telescopic block (308) being fixedly mounted on the bottom of the supporting block (307), and the clamping block (309) being fixedly mounted on the free end of the elastic telescopic block (308).

3. The grinding and polishing device for processing an integral stopper rod according to claim 2, characterized in that: A limiting groove is provided on one side of the block (306) close to the clamp (301), and the clamping block (309) contacts the limiting groove of the block (306); The frame (1) is provided with a buffer device for preventing the connecting rod (302) from being broken by the impact force of the stopper rod falling when the stopper rod is too heavy, and a protective device for protecting the stopper rod during grinding.

4. The grinding and polishing device for processing an integral stopper rod according to claim 3, characterized in that: The buffer device includes an elastic telescopic buffer block (401), a double plate (402), a large rack (403) and a pull rod (404), wherein the fixed end of the elastic telescopic buffer block (401) is fixedly mounted on the bottom of the inner wall of the placement groove, the free end of the elastic telescopic buffer block (401) is fixedly connected to the chassis (303), the double plate (402) is divided into a fixed plate and a free plate, the fixed plate of the double plate (402) is fixedly mounted on the circumferential surface of the free end of the elastic telescopic buffer block (401), the large rack (403) is slidably mounted on the top of the inner wall of the placement groove of the rack (1), the pull rod (404) is fixedly mounted on the top of the side of the large rack (403) away from the elastic telescopic buffer block (401), and the fixed plate of the double plate (402) is rotatably connected to the top of the free plate.

5. The grinding and polishing device for processing an integral stopper rod according to claim 4, characterized in that: The buffer device further comprises a sliding block (405), an L-shaped block (406) and an elastic telescopic strip (407), wherein a first slide groove is provided on the circumferential surface of the front face of the frame (1), the sliding block (405) is slidably mounted on the circumferential surface of the frame (1), the fixed end of the elastic telescopic strip (407) is fixedly mounted inside the first slide groove of the frame (1), and the L-shaped block (406) is fixedly mounted on the free end of the elastic telescopic strip (407).

6. The grinding and polishing device for processing an integral stopper rod according to claim 5, characterized in that: The sliding block (405) contacts the L-shaped block (406), the free plate of the double plate (402) contacts the large rack (403), and a spring is provided between the free plate and the fixed plate of the double plate (402).

7. The grinding and polishing device for processing an integral stopper rod according to claim 6, characterized in that: The protective device comprises a fixed block (501), a small rack (502), a gear (503), a fixed bar (504), a baffle (505), a square block (506), a rotating rod (507) and an arcuate slide (508), wherein one end of the fixed block (501) is fixedly mounted on the circumferential surface of the free end of the elastic telescopic buffer block (401), the small rack (502) is fixedly mounted on the other end of the fixed block (501), the gear (503) is rotatably mounted inside the frame (1), one end of the fixed bar (504) is fixedly mounted on the circumferential surface of the gear (503), the baffle (505) is fixedly mounted on the other end of the fixed bar (504), the square block (506) is fixedly mounted on the top of the frame (1), one end of the rotating rod (507) is rotatably mounted on the top of the square block (506), and the arcuate slide (508) is rotatably mounted on the other end of the rotating rod (507).

8. The grinding and polishing device for processing an integral stopper rod according to claim 7, characterized in that: The small rack (502) is meshed with the gear (503), and the arc-shaped slide (508) is slidably mounted on a side of the baffle plate (505) close to the elastic telescopic buffer block (401).

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