Polishing equipment and method special for valve rod machining

Abstract

The invention relates to the field of grinding equipment, in particular to polishing equipment special for valve rod machining and a method. The polishing equipment comprises a machine body, a machining bin is formed in one side of the upper portion of the front end of the machine body, mounting bases are mounted in the middles of the two side walls in the machining bin correspondingly, and second hydraulic rods are mounted in the middles of the mounting bases correspondingly; a servo motor is installed at the telescopic end of each second hydraulic rod, sliding frames are installed on the front side and the rear side of each second hydraulic rod through electric sliding frames, clamping bases are installed on the inner sides of the ends, close to each other, of the sliding frames and the ends of the servo motors, each clamping base comprises a fixing bin, and stepping motors are installed in the middles of the fixing bins; according to the device, the spraying head can be driven to deflect to adjust the spraying angle, the spraying position and range can be flexibly adjusted through combination of the spraying head and the sliding sleeve, local material shortage or excess is avoided, the auxiliary grinding effect of a grinding agent is fully played, and the quality of the ground surface is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of polishing equipment, and in particular to a special polishing equipment and method for valve rod machining. BACKGROUND

[0002] In the valve rod machining process, the polishing link is crucial to product precision and surface quality. The current market valve rod polishing equipment has many problems: first, the clamping adaptability is poor, the traditional clamping seat is mostly fixed structure, which cannot flexibly adapt to valve rods of different diameters and end shapes, and is prone to unstable clamping, which leads to valve rod deviation during polishing and affects machining precision; second, the polishing efficiency is low and the stress is uneven, mostly using unilateral contact polishing method, which is prone to deviation due to stress imbalance when the valve rod rotates at high speed, and the grinding block replacement needs to be operated in stop mode, which cannot realize continuous machining from rough grinding to fine grinding, and restricts production efficiency; third, the polishing debris is not cleaned in time, and the polishing debris is prone to adhere to the valve rod surface under the action of grinding fluid and grinding paste, affecting subsequent fine polishing; fourth, the grinding agent spraying effect is poor, the spraying range is limited and unevenly distributed, and local lack or excess phenomenon occurs frequently, which makes it difficult to fully play the auxiliary grinding role and lays hidden dangers for subsequent processing. These problems seriously affect the valve rod machining quality and efficiency, therefore, we propose a special polishing equipment and method for valve rod machining to solve the above-mentioned problems. SUMMARY

[0003] The purpose of the present application is to solve the problems in the background art and provide a special polishing equipment and method for valve rod machining.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a special polishing equipment and method for valve rod machining, comprising a machine body, a machining bin is formed on one side of the upper front end of the machine body, installation seats are installed in the middle of the two side walls in the machining bin, hydraulic rods II are installed in the middle of the installation seats, servo motors are installed at the telescopic ends of the hydraulic rods II, electric slides are installed through the front and rear sides of the middle of the installation seats, clamping seats are installed on the inner side of the end of the electric slides close to the servo motors, the clamping seats each comprise a fixed bin, step motors are installed in the middle of the fixed bin, connecting columns are installed at the drive ends of the step motors, slide sleeves are slidably connected to the outer periphery of the ends of the connecting columns, a plurality of electric push rods are installed on the edge of the fixed bin, housings are fixedly connected to the telescopic ends of the electric push rods, spiral discs are fixedly connected to the ends of the slide sleeves, the spiral discs are rotationally connected inside the housings, top blocks are arranged on the ends of the spiral discs away from the slide sleeves, the top blocks are slidably connected to the end of the housing, valve rods are clamped by the clamping seats between the servo motors, polishing frames are clamped by the clamping seats on the valve rods close to each other, and the polishing frames are arranged on the front and rear sides of the valve rods.

[0005] Preferably, the grinding frame comprises a mounting frame, the outer periphery of the mounting frame is uniformly provided with grinding blocks through fixing bolts, the grinding grits of adjacent grinding blocks gradually change one by one, the outer periphery of the mounting frame is provided with a plurality of storage strips, the storage strips are arranged between the grinding blocks, cleaning brushes are arranged between the storage strips, the bottom of the cleaning brush is provided with a sliding block, the sliding block penetrates the middle of the storage strip and is connected with the storage strip in a sliding mode.

[0006] Preferably, the inner part of the sliding frame is provided with a hot air blower, the outlet of the hot air blower is connected with an air outlet, the air outlet is arranged on one side of the sliding frame, the upper and lower parts of one end of the mounting seat are provided with guide grooves, the inner side of the guide groove is connected with a sliding seat in a sliding mode, the side of the sliding seat is penetrated by a threaded rod, and the end of the threaded rod is provided with a speed reducer.

[0007] Preferably, the upper side of the front part of the machine body is connected with a protective door through a sliding rail, and the middle of the front end of the machine body is provided with a control console.

[0008] Preferably, the inner part of the mounting frame is provided with an installation block, the inner part of the installation block is provided with a plurality of motors, the output end of the motor is fixedly connected with a threaded rod, and the threaded rod is connected with the inner part of the sliding block in a threaded mode.

[0009] Preferably, the threaded rod and the speed reducer are arranged in the inner side of the guide groove, the middle of the sliding seat is provided with a hydraulic rod, the middle of the side of the sliding seat is provided with a guide rail, and the middle of the side, away from the valve rod, of the guide rail is provided with a shunt pipe.

[0010] Preferably, the side end of the shunt pipe is provided with a plurality of guide pipes, the tail end of the guide pipe is connected with an external pump body, and the side, away from the shunt pipe, of the guide rail is connected with uniformly distributed guide columns in a sliding mode.

[0011] Preferably, the end of the guide column is provided with a driving motor, the output end of the driving motor is provided with a spray head, the input end of the spray head is connected with a connecting pipe, and the end of the connecting pipe is connected with the corresponding output end of the shunt pipe.

[0012] Preferably, the middle of the end, close to the valve rod, of the spray head is provided with a plurality of spray holes, the middle of the end, close to the valve rod, of the spray head is provided with a plurality of spray holes on both sides, and the middle of the end, close to the valve rod, of the spray head is provided with a positioning groove.

[0013] Preferably, the spray head is arranged on the upper and lower parts of the valve rod, the middle of the outer periphery of the guide column is rotatably connected with a connecting rod frame, and the both sides of the end of the connecting rod frame are connected with the telescopic end of the hydraulic rod through a rotating frame.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. To solve the problem of unstable clamping of valve stems with different diameters in actual use of existing equipment, improve the clamping adaptability and stability, the equipment clamping seat is driven by a stepping motor connected column and a sliding sleeve to rotate the spiral disc, which can flexibly adjust the support point of the top block, cooperate with the electric push rod to push the shell to adapt to the end shape of the valve stem, and accurately correspond to the valve stem with different diameters; At the same time, the two ends of the valve stem are clamped to avoid the deviation of the valve stem during polishing, providing a stable foundation for overall polishing, effectively adapting to the processing needs of valve stems of various specifications.

[0015] 2. To solve the problem of low polishing efficiency and uneven stress in single point polishing in actual use of existing equipment, improve the polishing accuracy and processing continuity, the polishing frame adopts a two-side double-point polishing design, so that the two sides are symmetrically stressed when the valve stem rotates at high speed, reducing polishing deviation; The grinding block can be installed and removed by fixed bolts, and different mesh grinding blocks can be selected according to the shape of the valve stem and polishing and polishing requirements, and the motor in the slide can drive the clamping seat and mounting frame to rotate, realizing quick switching of the grinding block without stopping to complete continuous processing from rough grinding to fine grinding, greatly improving polishing efficiency and processing flexibility.

[0016] 3. To solve the problem of polishing debris adhesion affecting subsequent fine polishing in actual use of existing equipment, ensure processing quality and cleaning brush service life, during polishing, the motor in the installation block drives the threaded rod II to extend the sliding block and cleaning brush, and periodically deflects the mounting frame to make the cleaning brush contact the valve stem, which can timely brush off the debris and grinding paste adhered to the surface of the valve stem; When the cleaning brush is recovered, the storage strip can not only limit its shape to avoid the cleaning brush being skewed by the rotating force of the valve stem, but also can extrude the cleaning brush through the wall to extrude the residual grinding liquid and debris inside, preventing accumulation and blockage; After the processing flow is completed, the hot air blower in the slide blows hot air through the air port to dry and clean the cleaning brush, making it quickly recover to a dry and clean state, providing clean protection for subsequent processing.

[0017] 4. To solve the problem of uneven spraying and limited coverage of grinding liquid or grinding paste in actual use of existing equipment, optimize the auxiliary grinding effect, the external pump body delivers the grinding liquid and paste to the shunt pipe through the conduit, and accurately introduces it into the spray head through the connecting pipe, the spray head provided with spray port one and spray port two can realize multi-directional spraying, ensuring that the grinding agent directly contacts the polished part of the valve stem; At the same time, hydraulic rod one can drive the connecting rod frame to extend and adjust the position of the spray head, and the drive motor can drive the spray head to deflect and adjust the spraying angle, and the combination of the two can flexibly adjust the spraying position and range, avoiding local lack or excess, fully playing the auxiliary grinding effect of the grinding agent, and improving the polishing surface quality.

[0018] 5、For the existing equipment in actual use, the valve rod positioning is not accurate, which leads to the deviation of clamping and docking, the machining positioning precision is improved, the positioning groove is opened at the end of the nozzle, the valve rod can be preliminarily positioned; the screw rod driven by the reduction motor in the guide groove rotates, drives the synchronous movement of the sliding seat, realizes the center positioning of the valve rod, and makes the valve rod end accurately correspond to the two side clamping seats; when the subsequent hydraulic rod II drives the servo motor and the clamping seat close to the valve rod, the docking can be completed without repeated adjustment, the positioning error is reduced, and the precision of subsequent clamping and polishing is laid as a foundation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of a special polishing equipment and method for valve rod machining; Figure 2 It is a front view of a special polishing equipment and method for valve rod machining; Figure 3 It is a front view of a special polishing equipment and method for valve rod machining; Figure 4 It is a front view of a special polishing equipment and method for valve rod machining; Figure 5 It is a front view of a special polishing equipment and method for valve rod machining; Figure 6 It is a front view of a special polishing equipment and method for valve rod machining; Figure 7 It is a front view of a special polishing equipment and method for valve rod machining; Figure 8 It is a front view of a special polishing equipment and method for valve rod machining; Figure 9 It is a front view of a special polishing equipment and method for valve rod machining.

[0020] 101, body; 102, processing bin; 103, protective door; 104, mounting seat; 105, control console; 106, guide groove; 107, sliding frame; 108, guide pipe; 109, sliding seat; 110, hydraulic rod one; 111, connecting pipe; 112, spray head; 113, shunt pipe; 114, guide rail; 115, hydraulic rod two; 116, connecting rod frame; 117, valve rod; 118, shell; 119, threaded rod one; 120, positioning groove; 121, spout one; 122, spout two; 123, guide column; 124, drive motor; 125, top block; 126, connecting column; 127, sliding sleeve; 128, electric push rod; 129, fixed bin; 130, servo motor; 131, grinding block; 132, cleaning brush; 133, storage strip; 134, spiral disc; 135, mounting frame; 136, threaded rod two; 137, mounting block; 138, sliding block. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present application so that those skilled in the art can implement the present application. The preferred embodiments in the following description are only as examples, and other obvious modifications can be conceived by those skilled in the art.

[0022] As Figures 1-9 shown in a kind of valve rod processing special polishing equipment and method, including body 101, body 101 front end upper part one side is equipped with processing bin 102, processing bin 102 inside two side walls middle part are equipped with mounting seat 104, mounting seat 104 middle part are equipped with hydraulic rod two 115, hydraulic rod two 115 telescopic end are equipped with servo motor 130, mounting seat 104 middle part front and back sides are equipped with sliding frame 107 by electric sliding bracket, sliding frame 107 inside are equipped with hot air blower, hot air blower outlet is connected with air port, air port is all set in the one side in sliding frame 107, the inside of the end of sliding frame 107 close to and the end of servo motor 130 are equipped with clamping seat, clamping seat includes fixed bin 129, fixed bin 129 inside middle part are equipped with stepper motor, stepper motor driving end are equipped with connecting column 126, connecting column 126 end outer periphery are slidably connected with sliding sleeve 127, fixed bin 129 inner edge are equipped with multiple electric push rods 128, electric push rod 128 telescopic end are fixedly connected with shell 118, sliding sleeve 127 end are fixedly connected with spiral disc 134, spiral disc 134 are rotationally connected in shell 118 inside, the end of spiral disc 134 away from sliding sleeve 127 are equipped with top block 125, top block 125 are slidably connected in shell 118 end, servo motor 130 are clamped with valve rod 117 through clamping seat, the part of valve rod 117 close to are clamped with polishing frame through clamping seat, polishing frame are set on the front and back sides of valve rod 117, body 101 front part upper side is slidably connected with protective door 103 through sliding rail, body 101 front end middle part one side is equipped with control console 105; Further, in specific implementation, during polishing, people can realize the positioning of the valve stem 117 to be polished through the positioning groove 120 on the spray head 112, and then drive the threaded rod 119 to rotate through the starting of the speed reducer motor inside the guide groove 106, and drive the sliding seat 109 to move through the threaded rod 119, and realize the center positioning of the valve stem 117 through the synchronous movement of the upper and lower sliding seats 109, so that the end of the valve stem 117 can correspond to the two clamping seats, and at this time the work of the hydraulic rod 115 can drive the servo motor 130 and the clamping seat to approach the end of the valve stem 117, at this time the electric push rod 128 in the clamping seat and the stepper motor start to work, and the connection column 126 is driven to rotate through the work of the stepper motor, and the screw disc 134 is driven to rotate through the connection column 126 and the sliding sleeve 127, so as to realize the position adjustment of the top block 125, and the support point position of the top block 125 can be adjusted to correspond to the valve stem 117 with different end diameters, so that the clamping of the valve stem 117 can be more stable, and the polishing work of the valve stem 117 can be more smooth through the clamping of the two ends of the valve stem 117, which is beneficial to actual use. During actual polishing, people can select the required abrasive block 131 according to the actual shape of the valve stem 117 and the polishing and polishing requirements, and then install the abrasive block 131 on the mounting bracket 135 by using the fixing bolt to realize the fixation of each abrasive block 131, and when the installation is completed, the sliding frame 107 is driven to move by the electric sliding frame on the mounting seat 104, and the sliding frame 107 and the abrasive block 131 are driven to approach the valve stem 117 and contact with it, and then the valve stem 117 is driven to rotate at high speed by the servo motor 130 through the clamping seat, and the valve stem 117 is polished through the abrasive block 131, and the clamping seat on the sliding frame 107 is driven to rotate through the motors installed on both sides of the sliding frame 107, so as to drive the mounting bracket 135 and the abrasive block 131 to rotate, realize the switching of the abrasive block 131 participating in polishing, realize continuous processing, and the two-sided abrasive block 131 can polish two sides, so that the stress on both sides of the valve stem 117 during rotation and polishing can be more symmetrical and uniform, which is beneficial to improve the accuracy during polishing.

[0023] The polishing frame comprises a mounting frame 135, the outer periphery of the mounting frame 135 is provided with uniformly distributed grinding blocks 131 through fixing bolts, the polishing mesh of adjacent grinding blocks 131 gradually changes one by one, a plurality of storage strips 133 are mounted on the outer periphery of the mounting frame 135, the storage strips 133 are arranged between the grinding blocks 131, cleaning brushes 132 are arranged between the storage strips 133, sliding blocks 138 are mounted at the bottom of the cleaning brushes 132, the sliding blocks 138 penetrate the middle of the storage strips 133, the sliding blocks 138 are in sliding connection with the storage strips 133, mounting blocks 137 are mounted in the middle of the mounting frame 135, a plurality of motors are mounted in the mounting blocks 137, threaded rods two 136 are fixedly connected to the output ends of the motors, and the threaded rods two 136 are in threaded connection with the interiors of the sliding blocks 138; Further, in the polishing process, the motor in the mounting block 137 is started to drive the threaded rod two 136 to rotate, the sliding block 138 and the cleaning brush 132 are driven to move by the threaded rod two 136, the cleaning brush 132 extends outward, the motors on the sliding frames 107 on both sides start to work every interval, the mounting frame 135 is deflected by an angle by the work of the motors on both sides during polishing, the cleaning brush 132 contacts the valve rod 117, the debris and grinding paste on the valve rod 117 are brushed off, the debris is prevented from continuously adhering to the valve rod 117 under the action of the grinding liquid and the grinding paste to affect the subsequent fine grinding and polishing work, the sliding block 138 and the cleaning brush 132 are recovered by the work of the motor in the mounting block 137, the cleaning brush 132 is recovered by the storage strip 133, the wall of the storage strip 133 extrudes the cleaning brush 132 during recovery, the grinding liquid and the debris in the cleaning brush 132 are extruded, the debris and the grinding liquid are prevented from continuously accumulating in the cleaning brush 132, the cleaning brush 132 is limited by the storage strip 133 to maintain the shape, the cleaning brush 132 is prevented from being skewed by the force of the rotation of the valve rod 117 during cleaning, which is beneficial to actual use, the cleaning brush 132 is stretched out after the completion of a processing process, hot air is sprayed from the air ports on the side of the hot air fan in the sliding frame 107 to dry and blow the cleaning brush 132, so that the cleaning brush 132 returns to a dry and clean state, which is beneficial to subsequent processing work.

[0024] The mounting seat 104 is provided with a guide groove 106 on the upper and lower parts of the end close to the valve rod 117, and the inner side of the guide groove 106 is slidably connected with a sliding seat 109, and the side of the sliding seat 109 is penetrated through with a threaded rod 119, and the end of the threaded rod 119 is provided with a speed reducer motor, and the threaded rod 119 and the speed reducer motor are installed in the inner side of the guide groove 106, and the middle part of the sliding seat 109 is provided with a hydraulic rod 110, and the middle part of the sliding seat 109 is provided with a guide rail 114, and the middle part of the side away from the valve rod 117 of the guide rail 114 is provided with a shunt pipe 113, and the side end of the shunt pipe 113 is provided with a plurality of guide pipes 108, and the tail end of the guide pipe 108 is connected with an external pump body, and the side away from the shunt pipe 113 of the guide rail 114 is slidably connected with uniformly distributed guide columns 123, and the end of the guide column 123 is provided with a drive motor 124, and the output end of the drive motor 124 is provided with a spray head 112, and the input end of the spray head 112 is connected with a connecting pipe 111, and the end of the connecting pipe 111 is connected with the corresponding output end of the shunt pipe 113, and the middle part of the end close to the valve rod 117 of the spray head 112 is provided with a plurality of nozzles 121, and the middle part of the end close to the valve rod 117 of the spray head 112 is provided with a plurality of nozzles 122, and the middle part of the end close to the valve rod 117 of the spray head 112 is provided with a positioning groove 120, and the spray head 112 is arranged on the upper and lower parts of the valve rod 117, and the middle part of the outer periphery of the guide column 123 is rotatably connected with a connecting rod frame 116, and the two side ends of the connecting rod frame 116 are connected with the telescopic end of the hydraulic rod 110 through a rotating frame. Further, in the grinding process, the pump body can extract the grinding liquid and the grinding paste, and the guide pipes 108 can guide the grinding liquid and the grinding paste into the shunt pipe 113, and the shunt pipe 113 and the connecting pipe 111 can further guide the grinding liquid and the grinding paste into the spray head 112, and the nozzles 121 and 122 of the spray head 112 can guide the grinding liquid and the grinding paste out, so that the grinding liquid and the grinding paste can directly contact the valve rod 117 to assist the grinding work, and in this process, the hydraulic rod 110 can drive the connecting rod frame 116 to stretch, thereby further driving the spray head 112 to move, and the drive motor 124 can drive the spray head 112 to deflect, and the combination of the two can adjust the spraying position and range of the spray head 112, which is beneficial to actual use.

[0025] Working principle: In actual use, people can realize the polishing of the valve stem 117 through the sander, and in polishing, people can realize the positioning of the valve stem 117 to be polished through the positioning groove 120 on the nozzle 112, and then the screw rod one 119 can be driven to rotate by starting the reduction motor inside the guide groove 106, the screw rod one 119 can drive the sliding seat 109 to move, and the synchronous opposite movement of the upper and lower sliding seats 109 can realize the center positioning of the valve stem 117, so that the end of the valve stem 117 can correspond to the two side clamping seats, and at this time the hydraulic rod two 115 can drive the servo motor 130 and the clamping seat to approach the end of the valve stem 117, at this time the electric push rod 128 in the clamping seat and the stepper motor start to work, the connection column 126 is driven to rotate through the work of the stepper motor, the screw disc 134 is driven to rotate through the connection column 126 and the sliding sleeve 127, so as to realize the position adjustment of the top block 125, the support point position of the top block 125 is adjusted to correspond to the valve stem 117 with different end diameters, so that the clamping of the valve stem 117 can be more stable, and the polishing work of the valve stem 117 can be more smooth through clamping the two ends of the valve stem 117, which is conducive to actual use.Afterwards, the work of the motor inside the mounting block 137 will drive the sliding block 138 and the cleaning brush 132 to be recycled. When recycling, the cleaning brush 132 can be recycled through the storage strip 133, and the wall of the storage strip 133 can extrude the cleaning brush 132 during the recycling process, so as to extrude the abrasive liquid and debris in the cleaning brush 132, avoiding the continuous accumulation of debris and abrasive liquid in the cleaning brush 132, and at the same time, the cleaning brush 132 is limited by the storage strip 133 to maintain the shape, which can avoid the cleaning brush 132 being skewed by the force of the valve rod 117 during rotation, which is beneficial to actual use. At the same time, after completing a processing process, the cleaning brush 132 is controlled to be stretched out, and then the hot air blower installed in the sliding frame 107 can use the air port opened on the side to blow hot air flow to dry and blow the cleaning brush 132, so as to restore the cleaning brush 132 to a dry and clean state, which is beneficial to subsequent processing work. During the grinding process, the abrasive liquid and abrasive paste can be extracted by the work of the pump body, and introduced into the shunt pipe 113 through the conduit 108, and further introduced into the spray head 112 through the shunt channel in the shunt pipe 113 and the connecting pipe 111. The abrasive liquid and abrasive paste can be discharged through the spray port one 121 and the spray port two 122 on the spray head 112, so that the abrasive liquid and abrasive paste can directly contact the valve rod 117 to assist the grinding work. In this process, the work of the hydraulic rod one 110 can drive the connecting rod frame 116 to stretch, so as to further drive the spray head 112 to move, and at the same time, the spray head 112 can be deflected by the driving motor 124. The combination of the two can adjust the spraying position and range of the spray head 112, which is beneficial to actual use.

[0026] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A special polishing equipment and method for valve stem processing, comprising a machine body (101), characterized in that: A processing chamber (102) is provided on one side of the upper front end of the machine body (101). Mounting seats (104) are installed in the middle of both sides of the processing chamber (102). Hydraulic rods (115) are installed in the middle of each mounting seat (104). Servo motors (130) are installed at the telescopic ends of the hydraulic rods (115). Slides (107) are installed on the front and rear sides of the middle of the mounting seat (104) via electric slides. Clamps are installed on the inner side of the slides (107) closest to each other and on the end of the servo motor (130). Each clamp includes a fixed chamber (129). A stepper motor is installed in the middle of each fixed chamber (129). A connecting column (126) is installed at the drive end of each stepper motor. A sliding plate is installed on the outer periphery of the end of each connecting column (126). The sliding sleeve (127) is dynamically connected. Multiple electric push rods (128) are installed on the inner side of the fixed chamber (129). The telescopic ends of the electric push rods (128) are fixedly connected to the housing (118). The ends of the sliding sleeves (127) are fixedly connected to the spiral discs (134). The spiral discs (134) are rotatably connected inside the housing (118). The end of the spiral discs (134) away from the sliding sleeves (127) is provided with a top block (125). The top block (125) is slidably connected to the end of the housing (118). The servo motors (130) hold the valve stem (117) through clamps. The parts of the valve stem (117) that are close to each other hold the grinding frame through clamps. The grinding frame is set on the front and rear sides of the valve stem (117).

2. The special polishing equipment and method for valve stem processing according to claim 1, characterized in that: Each grinding frame includes a mounting frame (135). The mounting frame (135) is equipped with evenly distributed grinding blocks (131) on its outer periphery by fixing bolts. The grinding grit of adjacent grinding blocks (131) gradually changes. Multiple storage strips (133) are installed on the outer periphery of the mounting frame (135). The storage strips (133) are all arranged between the grinding blocks (131). A cleaning brush (132) is arranged between the storage strips (133). A slider (138) is installed in the middle of the bottom end of the cleaning brush (132). The slider (138) passes through the middle of the storage strip (133) and is slidably connected to the storage strip (133).

3. The special polishing equipment and method for valve stem processing according to claim 1, characterized in that: Each of the slides (107) is equipped with a hot air blower. The outlet of the hot air blower is connected to an air vent. The air vent is located on one side inside the slide (107). The upper and lower parts of the mounting base (104) are provided with guide grooves (106) at the adjacent ends. A slide block (109) is slidably connected to the inner side of the guide groove (106). A threaded rod (119) passes through one side of the slide block (109). A geared motor is installed at the end of the threaded rod (119).

4. The special polishing equipment and method for valve stem processing according to claim 1, characterized in that: A protective door (103) is slidably connected to the upper front side of the body (101) via a slide rail, and a control console (105) is installed on one side of the middle front end of the body (101).

5. The special polishing equipment and method for valve stem processing according to claim 2, characterized in that: Each mounting bracket (135) has a mounting block (137) installed in the middle. Each mounting block (137) has multiple motors installed inside. Each motor output end is fixedly connected to a threaded rod (136). Each threaded rod (136) is threadedly connected inside the slider (138).

6. The special polishing equipment and method for valve stem processing according to claim 3, characterized in that: The threaded rod (119) and the geared motor are both installed inside the guide groove (106). The middle of the slide (109) is equipped with a hydraulic rod (110). The middle side of the slide (109) is equipped with a guide rail (114). The middle side of the guide rail (114) away from the valve stem (117) is equipped with a diverter pipe (113).

7. The special polishing equipment and method for valve stem processing according to claim 6, characterized in that: Multiple conduits (108) are installed on one end of the diversion pipe (113), and an external pump body is connected to the end of each conduit (108). The guide rail (114) is slidably connected with evenly distributed guide posts (123) on the side away from the diversion pipe (113).

8. The special polishing equipment and method for valve stem processing according to claim 7, characterized in that: Each of the guide posts (123) is equipped with a drive motor (124), and each of the drive motors (124) is equipped with a nozzle (112) at its output end. Each of the nozzles (112) is connected to a connecting pipe (111) at its input end, and each of the connecting pipes (111) is connected to the corresponding output end of the diverter pipe (113).

9. The special polishing equipment and method for valve stem processing according to claim 8, characterized in that: The nozzle (112) is provided with multiple nozzles (121) at the middle of one end near the valve stem (117), and multiple nozzles (122) are provided on both sides of the middle of one end near the valve stem (117). The nozzle (112) is provided with a positioning groove (120) at the middle of one end near the valve stem (117).

10. The special polishing equipment and method for valve stem processing according to claim 9, characterized in that: The nozzles (112) are all located on the upper and lower parts of the valve stem (117). The guide column (123) is rotatably connected to the middle of its outer periphery with a connecting rod frame (116). The two ends of the connecting rod frame (116) are connected to the telescopic end of the hydraulic rod (110) through a rotating frame.

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