Continuous valve stem surface rapid polishing apparatus

Abstract

The application discloses continuous valve rod surface rapid polishing equipment and relates to the technical field of valve rod machining equipment.The equipment comprises a base and a feeding component arranged at the upper end of the base and used for providing a valve rod A to be polished, a polishing component is arranged at the discharging position of the feeding component and used for polishing the valve rod A, positioning components are arranged at the two sides of the polishing component and used for clamping the valve rod A, a support is arranged at the upper end of the base and used for fixing the polishing component and the positioning components, and a collecting groove for collecting the valve rod A after polishing is further arranged at the upper end of the base.The application is designed in view of the existing situation, can continuously feed by itself, can adjust the clamping force according to the diameter of the valve rod, guarantees the clamping effect, can feed the valve rod during polishing of the valve rod surface, does not have a polishing dead angle, the whole machining process is continuous, the tool positioning is fast, and the machining efficiency of the valve rod is effectively improved, and the application has high practicability.

Description

Technical Field

[0001] This invention relates to the field of valve stem processing equipment technology, specifically to a continuous valve stem surface rapid polishing equipment. Background Technology

[0002] The valve stem is a crucial component of a valve, used for transmission. It connects to the actuator or handle at the top and directly drives the valve core to move or rotate, thus achieving valve opening and closing or regulation. During valve opening and closing, the valve stem is not only a moving and force-bearing component but also a sealing component. Existing valve stems require grinding during production. Current grinding equipment necessitates positioning both ends of the valve stem before grinding its surface with a grinding disc. After grinding, the valve stem must be removed and replaced with a new one. This replacement process impacts processing efficiency. Furthermore, because the valve stem is clamped at both ends, grinding dead zones exist. For example, patent publication number CN212886955U describes a polishing device for valve stem production that clamps both ends of the valve stem before grinding its surface, resulting in low tooling efficiency.

[0003] Patent publication number CN113478369B describes a stainless steel valve stem polishing machine. This product uses a clamping mechanism to clamp the valve stem, and a drive motor drives the clamping mechanism and valve stem to rotate. The polishing mechanism limits the valve stem, ensuring that the axis of the valve stem always coincides with the axis of the drive motor, thereby ensuring the valve stem rotates on a fixed axis and ensuring the uniformity of grinding and polishing. However, the above device still requires continuous loading and unloading, and the tooling positioning is relatively troublesome.

[0004] Based on this, a continuous valve stem surface rapid polishing device is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous valve stem surface rapid polishing device to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A continuous valve stem surface rapid polishing device includes a base and a feeding component disposed on its upper end for providing a valve stem A to be polished. The feeding component has a polishing component at its outlet for polishing the valve stem A. Positioning components for clamping the valve stem A are located on both sides of the polishing component. A bracket is provided at the upper end of the base to facilitate fixing the polishing component and the positioning components. A receiving trough for collecting the polished valve stem A is also provided at the upper end of the base. The inner wall of the receiving trough is lined with cushioning cotton to improve the cushioning effect. In actual use, the valve stem A to be polished is placed in the feeding component, which then sends the valve stem A to the positioning component. The positioning component continues to convey the valve stem A. During this conveying process, the polishing component can quickly polish the outer side of the valve stem A. The feeding component, polishing component, and positioning components are electrically connected to a control panel.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional configuration: the positioning component includes a clamping movable turntable symmetrically arranged upstream and downstream of the grinding component. The clamping movable turntable is rotatably mounted on a clamping positioning plate. The outer side of the clamping positioning plate is connected to a support via a connecting crossbeam. The clamping movable turntable is connected to a clamping drive component for rotating it. The center of the clamping positioning plate has a clamping through-hole for the valve stem A to pass through. Several clamping pressure protrusions are arrayed on the inner side of the clamping movable turntable. Multiple clamping slides are arrayed on the clamping positioning plate. The clamping slides are slidably mounted on a clamping guide sleeve on the surface of the clamping positioning plate. A clamping pressure wheel is rotatably mounted on the outer end of the clamping slide. The clamping pressure wheel corresponds to the position of the clamping pressure protrusion. A reset block on the surface of the clamping slide is connected to the clamping guide sleeve via a clamping reset spring. A clamping positioning wheel is rotatably mounted on the inner end of the clamping slide. A rubber layer is provided on the outer side of the clamping positioning wheel to improve the clamping effect. At least one clamping positioning wheel is connected to a feed motor for rotating it.

[0010] In the optional solution: two clamping positioning wheels are provided on each clamping slide, and the two clamping positioning wheels are on the same horizontal plane, which can improve the stability of clamping valve stem A.

[0011] In an optional embodiment: the clamping drive component includes an adjusting shaft extending horizontally above two clamping movable turntables. The adjusting shaft is rotatably positioned in the middle of a positioning horizontal plate, the two ends of which are connected and fixed to a bracket. The adjusting shaft is provided with a first adjusting gear that engages with the outer gear ring of the clamping movable turntable. The adjusting shaft is also provided with an adjusting worm gear, which engages with an adjusting worm. The adjusting worm gear is mounted on a clamping drive shaft, which is rotatably mounted on a bracket. The clamping drive shaft is connected to an adjusting motor for driving its rotation.

[0012] In an optional configuration: the outer side of the clamping and positioning wheel is rounded.

[0013] In an optional configuration: the feeding component includes a conveyor belt positioned above the base, with symmetrical conveyor side plates on both sides of the conveyor belt. A connecting frame is located between the two conveyor side plates, and the connecting frame is connected to a lifting push rod for adjusting its height. The lower end of the lifting push rod is mounted on the base, and the initial height of valve stem A can be adjusted via the lifting push rod. The conveyor belt is used to transport valve stem A. A loading box for preventing valve stem A from moving is fixed to one side of the conveyor belt. The loading box is inclined, and a buffer chamber that cooperates with valve stem A is located at the upper end of the loading box. A discharge notch is located near the conveyor belt in the buffer chamber. The distance between the lower end of the discharge notch and the conveyor belt corresponds to the diameter of a single valve stem A. The friction between the conveyor belt and valve stem A is greater than the friction between valve stem A and valve stem A. Two guide ramps are located at the tail end of the conveyor belt to guide valve stem A towards the center. The two guide ramps are in a figure-eight shape. A measuring unit for measuring the diameter of valve stem A is located at the end of the conveyor belt, and the diameter of valve stem A is obtained through the measuring unit.

[0014] In an optional configuration: one end of the guide ramp is rotatably connected to the transmission side plate via a reset shaft, and the reset shaft and the transmission side plate are connected by a reset torsion spring.

[0015] In an optional embodiment: the grinding component includes a grinding positioning plate, the outer side of which is connected and fixed to a bracket via a positioning rod. A grinding rotating plate is coaxially rotatable on the grinding positioning plate, and a grinding drive component is connected to drive the rotating plate. A grinding through hole is provided in the middle of the grinding rotating plate to facilitate the passage of valve stem A. A floating sleeve is installed on the grinding rotating plate, and two grinding pulleys are rotatably mounted on the floating sleeve. A grinding belt for grinding the surface of valve stem A is fitted between the two grinding pulleys. A transmission component is connected to drive its rotation. The floating sleeve has symmetrical sliding holes at both ends. A floating guide rod is slidably installed in the sliding hole. One end of the floating guide rod is connected and fixed to the positioning side block on the surface of the grinding rotary disk. The sliding direction of the floating sleeve is towards the grinding hole axis. A floating return spring is provided between the floating sleeve and the positioning side block. An electric telescopic push rod is installed in the middle of the floating sleeve. The output end of the electric telescopic push rod is provided with a pressure head for pressing the valve stem A. The pressure head is provided with balls that roll in contact with the surface of the valve stem A.

[0016] In an optional embodiment: the transmission component includes a fixed friction ring disposed on a grinding rotary disk, the friction ring being in frictional contact with a first driven friction wheel, a fixed shaft on which the first driven friction wheel is located being rotatably disposed on the grinding rotary disk, a second driven friction wheel being coaxially disposed at the other end of the fixed shaft, an auxiliary friction wheel being coaxially disposed on the outer side of at least one grinding pulley, the auxiliary friction wheel being connected to the second driven friction wheel and the tension wheel via a transmission belt, and the fixed shaft of the tension wheel being mounted on an elastic slide block.

[0017] In an optional embodiment: the elastic slide block includes a tension slide rail fixed to the surface of the grinding rotary disk. The surface of the tension slide rail has a T-shaped groove, in which a tension slider slides. The tension slider is connected to one end of the tension slide rail by a tension spring.

[0018] In an optional embodiment: the grinding drive component includes a grinding driven gear ring disposed on the outer side of the re-grinding rotary disk, a grinding steering motor is mounted on the grinding positioning disk, and a grinding drive wheel is provided at the output end of the grinding steering motor, the grinding drive wheel meshing with the grinding driven gear ring.

[0019] In an optional embodiment: the measuring unit includes a downward pressure roller horizontally positioned above the conveyor belt, the arrangement direction of the downward pressure roller being perpendicular to the conveying direction of the conveyor belt, and the distance between the downward pressure roller and the conveying surface of the conveyor belt being less than the diameter of valve stem A. When valve stem A passes the position of the downward pressure roller, the downward pressure roller is lifted up, and the height of the lift plus a preset distance is the diameter of valve stem A. One end of the downward pressure roller is rotatably mounted on the lifting slide plate, and the lower end of the lifting slide plate is slidably mounted on the outside of the conveying side plate. The surface of the conveying side plate is provided with a lifting guide sleeve that restricts the up-and-down sliding of the lifting slide plate. The outside of the lifting slide plate is provided with a lifting reset side block, and the lifting reset side block is connected to the lifting guide sleeve by a spring. The outside of the conveying side plate is provided with a distance sensor for detecting the movement distance of the lower end of the lifting slide plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] This application is designed to meet existing needs. It can continuously feed material on its own and adjust the clamping force according to the diameter of the valve stem to ensure the clamping effect. During the grinding process of the valve stem surface, it can also feed the valve stem, eliminating grinding dead corners. The entire processing process is continuous, the tooling positioning is fast, and it effectively improves the processing efficiency of the valve stem, making it highly practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure on the other side of the present invention;

[0024] Figure 3 This is a schematic diagram of the material discharge end of the present invention;

[0025] Figure 4 This is a schematic diagram of the clamping movable turntable structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the lower pressure roller structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the grinding rotary disk structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the tensioning slide rail structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure in this invention, in which two clamping positioning wheels are provided on each clamping slide.

[0030] Reference numerals in the attached drawings: base 100, receiving trough 101, bracket 102, valve stem A;

[0031] 200, material box; 201, lifting push rod; 202, transmission side plate; 203, transmission belt; 204, guide slant plate; 205, lower pressure roller; 206, lifting slide plate; 207, distance sensor; 208, lifting guide sleeve; 209, lifting reset side block.

[0032] Clamping movable turntable 300, clamping positioning plate 301, clamping pressure roller 302, clamping slide 303, clamping guide sleeve 304, clamping positioning roller 305, clamping return spring 306, clamping through hole 307, feed motor 308, clamping pressure protrusion 309;

[0033] First adjusting gear 400, adjusting worm 401, adjusting motor 402, adjusting worm gear 403, adjusting shaft 405, positioning cross plate 406;

[0034] Grinding positioning plate 500, grinding steering motor 501, grinding driven gear ring 502, grinding drive wheel 504, first driven friction wheel 505, floating guide rod 506, floating sliding sleeve 507, floating return spring 508, grinding rotating disc 509, grinding perforation 510, pressing head 511, tensioning wheel 512, positioning side block 513, grinding pulley 514, grinding belt 515, electric telescopic push rod 516, transmission belt 517, second driven friction wheel 518, tensioning slide rail 519, tensioning spring 520, tensioning slider 521. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] In one embodiment, such as Figures 1-8 As shown, a continuous valve stem surface rapid polishing device includes a base 100 and a feeding component disposed on its upper end for providing a valve stem A to be polished. The discharge position of the feeding component is provided with a polishing component for polishing the valve stem A. Positioning components for clamping the valve stem A are provided on both sides of the polishing component. The upper end of the base 100 is provided with a bracket 102 for fixing the polishing component and the positioning component. The upper end of the base 100 is also provided with a receiving groove 101 for collecting the polished valve stem A. The inner wall of the receiving groove 101 is provided with buffer cotton to improve the buffering effect. In actual use, the valve stem A to be polished is placed in the feeding component, and the feeding component sends the valve stem A to the position of the positioning component. The positioning component continues to transport the valve stem A. During the transportation process, the polishing component can quickly polish the outer side of the valve stem A. The feeding component, polishing component and positioning component are electrically connected to the control panel.

[0037] The positioning component includes a clamping movable turntable 300 symmetrically arranged upstream and downstream of the grinding component. The clamping movable turntable 300 is rotatably mounted on a clamping positioning plate 301. The outer side of the clamping positioning plate 301 is connected to the bracket 102 via a connecting crossbeam. The clamping movable turntable 300 is connected to a clamping drive component for rotating it. The clamping positioning plate 301 has a clamping through-hole 307 at its center to facilitate the passage of the valve stem A. Several clamping pressure protrusions 309 are arrayed on the inner side of the clamping movable turntable 301. Multiple clamping slides 303 are arrayed on the clamping positioning plate 301. The clamping slides 303 are slidably mounted on a clamping guide sleeve 304 on the surface of the clamping positioning plate 301. A clamping pressure wheel 302 is rotatably mounted at the outer end of the clamping slide 303, and the clamping pressure wheel 302 corresponds to the position of the clamping pressure protrusions 309. The reset block on the surface of the clamping slide 303 is connected to the clamping guide sleeve 304 by a clamping reset spring 306. The inner end of the clamping slide 303 is rotatably provided with a clamping positioning wheel 305. The outer side of the clamping positioning wheel 305 is provided with a rubber layer to improve the clamping effect and help to increase the clamping surface. At least one clamping positioning wheel 305 is connected to a feed motor 308 for driving its rotation. Under the action of the feed motor 308, the friction between the clamping positioning wheel 305 and the valve stem A can drive the valve stem A to move. In this way, it can be moved and polished at the same time without any dead corners in the polishing. When the clamping movable turntable 300 and the clamping positioning disc 301 rotate relative to each other, the clamping pressure protrusion 309 will generate a pushing force on the clamping pressure wheel 302, so that the clamping positioning wheel 305 moves toward the center of the clamping through-hole 307, thus clamping the valve stem A.

[0038] To improve the clamping effect, two clamping positioning wheels 305 can be set on each clamping slide 303, and the two clamping positioning wheels 305 are on the same horizontal plane, which can improve the stability of clamping valve stem A.

[0039] The clamping drive includes an adjusting shaft 405 extending horizontally above the two clamping movable turntables 300. The adjusting shaft 405 is rotatably positioned in the middle of a positioning horizontal plate 406. Both ends of the positioning horizontal plate 406 are connected and fixed to a bracket 102. The adjusting shaft 405 is provided with a first adjusting gear 400 that engages with the outer toothed ring of the clamping movable turntable 300. The adjusting shaft 405 is also provided with an adjusting worm gear 401, which engages with an adjusting worm 403. The adjusting worm gear 403 is mounted on a clamping drive shaft, which is rotatably mounted on the bracket 102. The clamping drive shaft is connected to an adjusting motor 402 for driving its rotation. Under the action of the adjusting motor 402, the adjusting worm gear 403 engages with the adjusting worm gear 401 to drive the adjusting shaft 405 to rotate. The adjusting shaft 405 drives the first adjusting gear 400 to rotate. The first adjusting gear 400 engages with the outer toothed ring of the clamping movable turntable 300 to drive the clamping movable turntable 300 to rotate.

[0040] The outer side of the clamping and positioning wheel 305 is rounded to make the transition between the valve stem A and the clamping and positioning wheel 305 smoother.

[0041] The feeding component includes a conveyor belt 203 positioned above the base 100. Conveyor side plates 202 are symmetrically arranged on both sides of the conveyor belt 203. A connecting frame is located between the two conveyor side plates 202, connecting to a lifting push rod 201 for height adjustment. The lower end of the lifting push rod 201 is mounted on the base 100. The initial height of the valve stem A can be adjusted via the lifting push rod 201. The conveyor belt 203 is used to transport the valve stem A. A loading box 200 for preventing the valve stem A from falling is fixed to one side of the conveyor belt 203. The loading box 200 is inclined, and a buffer chamber that mates with the valve stem A is located at the upper end of the loading box 200. A discharge notch is located near the conveyor belt 203. The distance between the port and the conveyor belt 203 corresponds to the diameter of a single valve stem A. These dimensions are preset and adjusted accordingly based on the diameter of valve stem A, ensuring that the lowermost valve stem A can be smoothly conveyed by the conveyor belt 203. The friction between the conveyor belt 203 and the valve stem A is greater than the friction between valve stems A themselves. The tail end of the conveyor belt 203 is provided with two guide ramps 204 for guiding the valve stem A towards the center. The two guide ramps 204 have a figure-eight structure, and the narrowest width between the two guide ramps 204 corresponds to the diameter of the valve stem A. The end of the conveyor belt 203 is provided with a measuring unit for measuring the diameter of the valve stem A. The diameter of the valve stem A is obtained through the measuring unit to better clamp and position the valve stem A.

[0042] One end of the guide plate 204 is rotatably connected to the transmission side plate 202 via a reset rotating shaft, and the reset rotating shaft and the transmission side plate 202 are connected by a reset torsion spring.

[0043] The grinding component includes a grinding positioning disk 500, the outer side of which is connected and fixed to a bracket 102 via a positioning rod. A grinding rotating disk 509 is coaxially rotatable on the grinding positioning disk 500. The grinding rotating disk 509 is connected to a grinding drive component for rotating it. A grinding through hole 510 is provided in the middle of the grinding rotating disk 509 to facilitate the passage of the valve stem A. A floating sleeve 507 is installed on the grinding rotating disk 509. Two grinding pulleys 514 are rotatably mounted on the floating sleeve 507. A grinding belt 515 for grinding the surface of the valve stem A is fitted between the two grinding pulleys 514. The grinding pulleys 514 are connected to a transmission component for rotating them. The transmission component drives the grinding pulleys 514 to rotate. The floating sleeve 507 has symmetrical sliding holes at both ends, in which a floating... A guide rod 506 is provided, one end of which is fixedly connected to a positioning block 513 on the surface of the grinding rotary disk 509. The sliding direction of the floating sleeve 507 is towards the axis of the grinding hole 510. A floating return spring 508 is provided between the floating sleeve 507 and the positioning block 513. Under the action of the floating return spring 508, the grinding belt 515 is pressed tightly against the surface of the valve stem A. An electric telescopic push rod 516 is installed in the middle of the floating sleeve 507. The output end of the electric telescopic push rod 516 is provided with a pressing head 511 for pressing the valve stem A. The pressing head 511 is provided with balls that roll in contact with the surface of the valve stem A. Thus, the friction between the tension wheel 512 and the valve stem A is rolling friction. The extension range of the electric telescopic push rod 516 can be used to press the valve stem A, thereby adjusting the tightness of the grinding belt 515 against the valve stem A.

[0044] During the grinding process, the grinding disc 509 rotates around the valve stem A. While it is revolving, the grinding belt 515 also rotates, thereby grinding the valve stem A from all sides. The clamping through-hole 307 and the grinding through-hole 510 are coaxially set.

[0045] The transmission component includes a fixed friction ring mounted on the grinding rotary disk 509. The friction ring is in frictional contact with a first driven friction wheel 505. The fixed shaft containing the first driven friction wheel 505 is rotatably mounted on the grinding rotary disk 509. A second driven friction wheel 518 is coaxially mounted on the other end of the fixed shaft. An auxiliary friction wheel is coaxially mounted on the outer side of at least one grinding pulley 514. The auxiliary friction wheel, the second driven friction wheel 518, and the tension wheel 512 are connected by a transmission belt 517. The fixed shaft of the tension wheel 512 is mounted on an elastic slide block, which keeps the transmission belt 517 under tension. When the grinding rotary disk 509 and the grinding positioning disk 500 rotate relative to each other... The friction between the fixed friction ring and the first driven friction wheel 505 will drive the first driven friction wheel 505 to rotate. The first driven friction wheel 505 will drive the second driven friction wheel 518 to rotate. The second driven friction wheel 518 will drive the tension wheel 512 and the auxiliary friction wheel to rotate through the transmission belt 517. The auxiliary friction wheel will drive one of the grinding pulleys 514 to rotate, thus providing power for grinding. As the diameter of the valve stem A changes, the floating sleeve 507 can slide on the floating guide rod 506. During the sliding process, the first driven friction wheel 505 is always in contact with the fixed friction ring. When the floating sleeve 507 moves up and down, the elastic component can keep the transmission belt 517 in a tense state.

[0046] The elastic slide block includes a tension slide rail 519 fixed on the surface of the grinding rotary disk 509. The surface of the tension slide rail 519 has a T-shaped groove. A tension slider 521 slides in the groove. The tension slider 521 is connected to one end of the tension slide rail 519 through a tension spring 520. Here, the tension spring 520 is in a cable-compressed state, thereby ensuring the effective transmission of the transmission belt 517.

[0047] The grinding drive component includes a grinding driven gear ring 502 disposed on the outer side of the grinding rotary disk 509. A grinding steering motor 501 is mounted on the grinding positioning disk 500. A grinding drive wheel 504 is provided at the output end of the grinding steering motor 501. The grinding drive wheel 504 meshes with the grinding driven gear ring 502. The grinding steering motor 501 drives the grinding drive wheel 504 to rotate. The grinding drive wheel 504 and the grinding driven gear ring 502 cooperate to drive the grinding rotary disk 509 to rotate, thereby providing power for grinding.

[0048] The measuring unit includes a horizontally positioned lower pressure roller 205 above the conveyor belt 203. The arrangement direction of the lower pressure roller 205 is perpendicular to the conveying direction of the conveyor belt 203. The distance between the lower pressure roller 205 and the conveying surface of the conveyor belt 203 is less than the diameter of the valve stem A. When the valve stem A passes the position of the lower pressure roller 205, the lower pressure roller 205 is lifted up. The height of the lift plus a preset distance is the diameter of the valve stem A. One end of the lower pressure roller 205 is rotatably mounted on the lifting slide plate 206, and the lower end of the lifting slide plate 206 is slidably mounted outside the conveying side plate 202. On the side, the surface of the transmission side plate 202 is provided with a lifting guide sleeve 208 to restrict the up and down sliding of the lifting slide plate 206. The outer side of the lifting slide plate 206 is provided with a lifting reset side block 209. The lifting reset side block 209 and the lifting guide sleeve 208 are connected by a spring. The outer side of the transmission side plate 202 is provided with a distance sensor 207 to detect the movement distance of the lower end of the lifting slide plate 206. The distance sensor 207 can quickly obtain the distance of the valve rod A pushing the lower pressure roller 205. The processing module in the control panel will obtain the diameter of the valve rod A according to the preset distance.

[0049] The above embodiments disclose a continuous valve stem surface rapid polishing equipment. In actual use, the valve stem A to be processed is placed on the loading box 200. Under the action of gravity, multiple valve stems A are arranged in sequence. Under the transmission of the conveyor belt 203, the lowermost valve stem A is transported to the position of the clamping movable turntable 300. The measuring unit at the end of the conveyor belt 203 will obtain the diameter of the valve stem A. Under the action of the control panel, the adjusting motor 402 will drive the adjusting worm gear 403 to rotate. The adjusting worm gear 403 drives the adjusting shaft 405 to rotate through the adjusting turbine 401. The first adjusting gear 400 on the outer side of the pivot rod 405 will drive the clamping movable turntable 300 to rotate. When the clamping movable turntable 300 rotates relative to the clamping positioning plate 301, the clamping pressure protrusion 309 will generate a pushing force on the clamping pressure wheel 302, causing the clamping positioning wheel 305 to move towards the center of the clamping through-hole 307. In this way, the valve stem A can be clamped. Under the action of the feed motor 308, the friction between the clamping positioning wheel 305 and the valve stem A can drive the valve stem A to move. In this way, it can be moved and polished at the same time, without any dead corners in the polishing.

[0050] During the movement of valve stem A, the grinding rotating disk 509 and the grinding positioning disk 500 rotate relative to each other under the action of the grinding drive component. When the grinding rotating disk 509 and the grinding positioning disk 500 rotate relative to each other, the friction between the fixed friction ring and the first driven friction wheel 505 will drive the first driven friction wheel 505 to rotate. The first driven friction wheel 505 will drive the second driven friction wheel 518 to rotate. The second driven friction wheel 518 drives the tension wheel 512 and the auxiliary friction wheel to rotate through the transmission belt 517. The auxiliary friction wheel will drive one of the grinding pulleys 514 to rotate. The grinding pulley 514 drives the grinding belt 515 to rotate. The grinding belt 515 will grind the surface of valve stem A. As the diameter of valve stem A changes, the floating sleeve 507 can slide on the floating guide rod 506. During the sliding process, the first driven friction wheel 505 is always in contact with the fixed friction ring. When the floating sleeve 507 moves up and down;

[0051] It should be noted that during the movement of valve stem A, one end is always in a clamped state. After grinding, valve stem A will be taken away or dropped into the receiving trough 101 for buffering.

[0052] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A continuous valve stem surface rapid polishing apparatus, comprising a base (100) and a feeding component arranged at the upper end of the base (100) for providing a valve stem A to be polished, and a polishing component arranged at the discharge position of the feeding component for polishing the valve stem A, characterized in that, The polishing component is provided with positioning components on both sides for clamping the valve rod A, the base (100) is provided with a support (102) at the upper end for fixing the polishing component and the positioning component, and the base (100) is also provided with a collecting groove (101) at the upper end for collecting the valve rod A after polishing, and the feeding component, the polishing component and the positioning component are electrically connected to the control panel; The polishing component comprises a polishing positioning disc (500), the polishing positioning disc (500) is connected and fixed with the support (102) through a positioning rod at the outer side, a polishing rotary disc (509) is coaxially arranged on the polishing positioning disc (500), the polishing rotary disc (509) is connected with a polishing driving element for driving the polishing rotary disc (509) to rotate, a polishing hole (510) is arranged in the middle of the polishing rotary disc (509) for the valve rod A to pass through, a floating sliding sleeve (507) is arranged on the polishing rotary disc (509), two polishing pulleys (514) are rotatably arranged on the floating sliding sleeve (507), a polishing belt (515) is arranged between the two polishing pulleys (514) for polishing the surface of the valve rod A, the polishing pulleys (514) are connected with a transmission element for driving the polishing pulleys (514) to rotate, the floating sliding sleeve (507) is symmetrically provided with sliding holes at both ends, a floating guide rod (506) is slidably arranged in the sliding hole, one end of the floating guide rod (506) is connected and fixed with a positioning side block (513) on the surface of the polishing rotary disc (509), the floating sliding sleeve (507) slides towards the axis of the polishing hole (510), a floating return spring (508) is arranged between the floating sliding sleeve (507) and the positioning side block (513), an electric telescopic push rod (516) is arranged in the middle of the floating sliding sleeve (507), an abutting head (511) is arranged at the output end of the electric telescopic push rod (516) for abutting and pressing the valve rod A, and the abutting head (511) is provided with rolling balls for rolling contact with the surface of the valve rod A.

2. The continuous valve stem surface quick polishing apparatus of claim 1, wherein, The positioning component comprises clamping movable turntables (300) symmetrically arranged upstream and downstream of the polishing component, the clamping movable turntables (300) are rotationally arranged on clamping positioning discs (301), the clamping positioning discs (301) are connected with the support (102) through connecting cross frames on the outer side, the clamping movable turntables (300) are connected with clamping driving members for driving the rotation thereof, the clamping positioning discs (301) are provided with clamping through holes (307) in the central positions for facilitating the valve rod A to pass through, the inner side of the clamping movable turntables (300) is arrayed with a plurality of clamping abutting protrusions (309), the clamping positioning discs (301) are arrayed with a plurality of clamping sliding seats (303), the clamping sliding seats (303) are slidingly arranged on clamping guide sleeves (304) on the surface of the clamping positioning discs (301), the outer ends of the clamping sliding seats (303) are rotationally provided with clamping abutting wheels (302), the clamping abutting wheels (302) correspond to the positions of the clamping abutting protrusions (309), the reset blocks on the surface of the clamping sliding seats (303) are connected with the clamping guide sleeves (304) through clamping reset springs (306), the inner ends of the clamping sliding seats (303) are rotationally provided with clamping positioning wheels (305), the outer sides of the clamping positioning wheels (305) are provided with rubber layers for improving the clamping effect, and at least one clamping positioning wheel (305) is connected with a feeding motor (308) for driving the rotation thereof.

3. The continuous valve stem surface quick polishing apparatus of claim 2, wherein, Two clamping positioning wheels (305) are arranged on each clamping sliding seat (303), and the two clamping positioning wheels (305) are in the same horizontal plane.

4. The continuous valve stem surface quick polishing apparatus of claim 2, wherein, The clamping driving member comprises an adjusting shaft rod (405) transversely arranged above the two clamping movable turntables (300), the adjusting shaft rod (405) is rotationally arranged at the middle position of a positioning horizontal plate (406), the two ends of the positioning horizontal plate (406) are connected and fixed with the support (102), the adjusting shaft rod (405) is provided with a first adjusting gear (400) matched with the outer side tooth ring of the clamping movable turntable (300), the adjusting shaft rod (405) is further provided with an adjusting turbine (401), the adjusting turbine (401) is matched with an adjusting worm (403), the adjusting worm (403) is arranged on a clamping driving shaft, the clamping driving shaft is rotationally arranged on the support (102), and the clamping driving shaft is connected with an adjusting motor (402) for driving the rotation thereof.

5. The continuous valve stem surface quick polishing apparatus of claim 1, wherein, The feeding component includes a conveying belt (203) arranged above the base (100), and conveying side plates (202) are symmetrically arranged on both sides of the conveying belt (203); a connecting frame is arranged at a middle position between the two conveying side plates (202), the connecting frame is connected with a lifting push rod (201) for driving height adjustment of the connecting frame, the lower end of the lifting push rod (201) is arranged on the base (100), and the initial height of the valve rod A can be adjusted through the lifting push rod (201); the conveying belt (203) is used for conveying the valve rod A, a loading box (200) for preventing the valve rod A is fixed on one side of the conveying belt (203), the loading box (200) is arranged in an inclined manner, a buffer chamber matched with the valve rod A is arranged at the upper end of the loading box (200), a discharging gap is arranged at a position of the buffer chamber close to the conveying belt (203), the distance between the lower end of the discharging gap and the conveying belt (203) corresponds to the diameter of a single valve rod A, the friction between the conveying belt (203) and the valve rod A is greater than the friction between the valve rod A and the valve rod A, and the tail end of the conveying belt (203) is provided with two guide inclined plates (204) for guiding the valve rod A to the middle, the two guide inclined plates (204) are in a m-shape structure, and a measuring unit for measuring the diameter of the valve rod A is arranged at the end of the conveying belt (203).

6. The continuous valve stem surface quick polishing apparatus of claim 5, wherein, One end of the guide inclined plate (204) is rotationally connected with the conveying side plate (202) through a reset pivot, and the reset pivot and the conveying side plate (202) are connected through a reset torsional spring.

7. The continuous valve stem surface quick polishing apparatus of claim 1, wherein, The transmission member includes a fixed friction ring arranged on the polishing rotary disc (509), the friction ring is in frictional contact with a first driven friction wheel (505), a fixed shaft on which the first driven friction wheel (505) is arranged is rotationally arranged on the polishing rotary disc (509), and a second driven friction wheel (518) is coaxially arranged at the other end of the fixed shaft; at least one polishing belt wheel (514) is coaxially provided with an auxiliary friction wheel outside, the auxiliary friction wheel is in transmission connection with the second driven friction wheel (518) and the tensioning wheel (512) through a transmission belt (517), and the fixed shaft of the tensioning wheel (512) is installed on the elastic sliding group.

8. The continuous valve stem surface quick polishing apparatus of claim 7, wherein, The elastic sliding group includes a tensioning sliding rail (519) fixed on the surface of the polishing rotary disc (509), a sliding groove with a T-shaped cross section is formed in the surface of the tensioning sliding rail (519), and a tensioning sliding block (521) is slidably arranged in the sliding groove; and the tensioning sliding block (521) is connected with one end of the tensioning sliding rail (519) through a tensioning spring (520).

9. The continuous valve stem surface quick polishing apparatus of claim 5, wherein, The measuring unit comprises a horizontal lower pressing roller (205) arranged above the conveying belt (203), the arrangement direction of the lower pressing roller (205) is perpendicular to the conveying direction of the conveying belt (203), the distance between the lower pressing roller (205) and the conveying surface of the conveying belt (203) is less than the diameter of the valve stem A, when the valve stem A passes the position of the lower pressing roller (205), the lower pressing roller (205) is lifted up, the lifting height plus a preset distance is the diameter of the valve stem A, one end of the lower pressing roller (205) is rotatably arranged on a lifting slide plate (206), the lower end of the lifting slide plate (206) is slidably arranged outside the conveying side plate (202), the surface of the conveying side plate (202) is provided with a lifting guide sleeve (208) for limiting the up-down sliding of the lifting slide plate (206), the outside of the lifting slide plate (206) is provided with a lifting reset side block (209), the lifting reset side block (209) and the lifting guide sleeve (208) are connected through a spring, and the outside of the conveying side plate (202) is provided with a distance sensor (207) for detecting the moving distance of the lower end of the lifting slide plate (206).

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