Adjusting valve part cutting machining device and machining method thereof

Abstract

The invention relates to the technical field of adjusting valve machining, and particularly discloses an adjusting valve part cutting machining device and a machining method thereof.The adjusting valve part cutting machining device comprises a feeding platform capable of loading and controlling a valve rod to move and a fixing frame, and is characterized in that a fixing ring is fixedly installed in the fixing frame, and a plurality of sliding grooves are formed in the side wall of the fixing ring; a sliding block capable of sliding is arranged in each sliding groove, and the sliding blocks slide centripetally or centrifugally. The adjustable cutters are arranged to cut the outer wall of the valve rod, so that stress between the outer wall of the valve rod and the cutters can be shared by the cutters, abrasion of cutter heads of the cutters is reduced, the service life of the cutters is prolonged, heat generated by friction between a single cutter and the outer wall of the valve rod can be reduced, and the service life of the cutters is prolonged. Thermal deformation of the tool bit caused by overheating of the tool bit due to long-time high-temperature influence can be avoided, the machining speed of the machine tool on the valve rod can be increased, and the cutting precision of the machine tool on the valve rod can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of regulating valve processing, and in particular to a regulating valve component cutting processing device and a processing method thereof. Background Art

[0002] Since the valve stem needs to cooperate with the valve seat and valve disc to achieve the sealing of the regulating valve, its processing requirements usually require the use of high-precision and high-stability machine tools and equipment. Among them, CNC machine tools are mostly used for valve stem processing due to their high processing accuracy, multi-coordinate linkage, higher flexibility, high precision, high rigidity, and reduced labor intensity.

[0003] However, existing CNC machine tools mainly use a single cutter head for cutting. The single cutter head is in continuous contact with the workpiece during cutting, which will cause excessive load on the cutter head. It is not only easy to cause wear of the cutter head and affect the service life of the cutter head, but also easy to cause overheating of the cutter head, causing thermal deformation of the cutter head and affecting the cutting accuracy. Summary of the invention

[0004] The object of the present invention is to provide a regulating valve component cutting and processing device and a processing method thereof to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a regulating valve component cutting and processing device, comprising a feeding platform and a fixed frame that can load and control the movement of a valve stem, a fixed ring is fixedly installed in the fixed frame, a plurality of sliding grooves are provided on the side wall of the fixed ring, each of the sliding grooves is provided with a sliding block that can slide, and the sliding block slides centripetally or centrifugally, a tool is fixedly installed on one centripetal end of the sliding block, and a feed channel for the valve stem to pass through is jointly provided in the center of the fixed frame and the fixed ring.

[0006] Preferably, a cavity is opened in the fixed ring, and a plurality of moving blocks distributed in a ring shape and corresponding to the sliding blocks are installed on the inner wall of the cavity away from the sliding block, and the plurality of moving blocks and their extension lines can together form a regular polygon, and can be slidably adjusted in the same direction along their edge lines, and the side walls of the moving blocks are provided with oblique grooves, and the side walls of the sliding blocks are provided with protrusions that can slide in the oblique grooves.

[0007] Preferably, a rack is slidably installed in the empty groove opened in the moving block, and the rack consists of a lower rack and an upper rack. A rotatable sliding cylinder is provided in the fixed frame, and a gear that can mesh with the racks in multiple moving blocks at the same time is fixed on the outer wall of the sliding cylinder.

[0008] Preferably, a rotating cylinder is rotatably mounted on the inner wall of the fixed frame, the sliding cylinder is slidably sleeved on the outer wall of the rotating cylinder and is slidably connected via a spline, a worm gear is fixed to the outer wall of the rotating cylinder, a motor is fixedly mounted on the top surface of the fixed frame, a worm is fixedly connected to the main shaft of the motor, and the worm and the worm gear are meshed with each other.

[0009] Preferably, a rotating ring is rotatably installed on the inner wall of the fixed ring, and a plurality of grooves are annularly distributed on the inner wall of the rotating ring. A limit block is rotatably installed in each of the grooves, and a torsion spring is installed between the limit block and the groove. The plurality of limit blocks are all obliquely arranged in the same direction. The inner wall of the rotating ring is also provided with an annular groove composed of a plurality of V-shaped grooves and transverse grooves connected end to end, and a plurality of limit rods that can slide in the annular groove are fixedly installed on the outer wall of the sliding cylinder.

[0010] Preferably, an arc-shaped groove is provided on the outer wall of the moving block, a fixed shaft is fixedly installed on the outer wall of the moving block, a rotating rod is rotatably installed on the outer wall of the fixed shaft, a rotating shaft that can slide in the arc-shaped groove is rotatably installed on one end of the rotating rod, one end of the rotating shaft is slidably installed on the side wall of the rack, and the outer wall of the moving block is also provided with a driver that can drive the rotating rod to swing back and forth.

[0011] Preferably, a limiting shaft is provided on the side wall of the movable block, a rotating block is rotatably installed between the limiting shaft and the other end of the rotating rod, a sliding groove is provided on the side wall of the rotating block for sliding of the rotating rod and the connecting shaft of the rotating block, a fixedly installed sliding ring and a slidably installed sliding ring are provided on the outer wall of the rotating block, and the sliding ring is abutted against the end of the rotating rod, and a spring is provided between the two sliding rings.

[0012] Preferably, when the rotating rod and the rotating block are in the same straight line, the upper rack or the lower rack remains disengaged from the gear.

[0013] Preferably, friction damping is provided at the connection between the outer wall of the rotating ring and the fixed ring.

[0014] A method for using a cutting device for a regulating valve component comprises the following steps:

[0015] Step 1: When the device is used, the valve stem is first fixed by the external feeding platform and made to coincide with the center of the feeding channel, and then the worm is driven by the motor to rotate, driving the worm wheel and the sliding cylinder to rotate together;

[0016] Step 2: At this time, the gear drives the multiple racks and the multiple moving blocks to slide on the inner wall of the cavity, and drives the sliding block to move centripetally through the inclined groove on the side wall of the moving block, until the multiple sliding blocks drive the multiple knives to move to the preset cutting position;

[0017] Step 3: Drive the external mobile platform to drive the valve stem into the feed channel so that the valve stem and the cutter are against each other, maintain the preset feed speed and provide a suitable rotation rate for the valve stem, and cooperate with the cutter to cut the outer wall of the valve stem;

[0018] Step 4: When the cutting is completed, the motor is driven to rotate in the reverse direction to drive the sliding block and the tool to reset. At this time, the limit rod slides in the transverse groove in the annular groove, and then the limit rod slides into the V-shaped part in the annular groove, so that the sliding cylinder rotates and slides back and forth in the rotating cylinder for a distance, and in the process of reciprocating sliding, the gear is disengaged from the meshing with the rack, thereby changing the meshing position of the gear and the rack;

[0019] Step 5: Replace the valve stem to be processed and repeat steps 1 to 4 above.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention arranges a plurality of adjustable tools to perform cutting processing on the outer wall of the valve stem, so that the stress between the outer wall of the valve stem and the tools can be shared by the plurality of tools, thereby reducing the cutting load borne by a single tool head, reducing the wear of the tool head, and extending the service life of the tool. At the same time, it can also reduce the heat generated by the friction between a single tool and the outer wall of the valve stem, and can prevent the tool head from overheating due to long-term high temperature, resulting in thermal deformation of the tool head. It can not only improve the processing rate of the machine tool on the valve stem, but also improve the cutting accuracy of the machine tool on the valve stem.

[0022] 2. The present invention continuously changes the meshing position of the rack and the gear each time the tool is reset, thereby avoiding the limitation of the adjustment range of the tool, so that the meshing position of the gear and the rack is always concentrated on some teeth in the gear, thereby avoiding metal fatigue deformation or wear caused by long-term meshing of the teeth at the meshing position with the rack, ensuring that the transmission ratios of multiple racks and gears are consistent, and avoiding inconsistent feed amounts when multiple tools move centripetally, resulting in reduced cutting accuracy of the outer wall of the valve stem.

[0023] 3. The present invention drives the upper rack and the lower rack to alternately mesh with the gear, thereby reducing the wear and metal fatigue at the meshing point between the rack and the gear, ensuring the consistency of the transmission ratio between multiple racks and gears, and cooperating with the rotation of the gear meshing point in the above text to minimize the wear and metal fatigue between the gear and the rack, further improving the synchronization rate of multiple tools, thereby greatly increasing the consistency of the feed amount of multiple tools on the valve stem and improving the processing accuracy of the valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 is a side cross-sectional view of the fixing frame of the present invention;

[0026] Figure 3 The cross section of the three-dimensional structure schematic diagram of the present invention Figure 1 ;

[0027] Figure 4 The cross section of the three-dimensional structure schematic diagram of the present invention Figure 2 ;

[0028] Figure 5 The three-dimensional structure diagram of the moving block and its related structures in the present invention Figure 1 ;

[0029] Figure 6 The three-dimensional structure diagram of the moving block and its related structures in the present invention Figure 2 ;

[0030] Figure 7 It is a three-dimensional structural exploded diagram of the sliding cylinder and its related structures in the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating ring in the present invention;

[0032] Fig. 9 It is a partial cross-sectional view of the fixing ring of the present invention.

[0033] In the figure: 1, fixed frame; 2, fixed ring; 3, feed channel; 4, sliding block; 5, tool; 6, lower rack; 7, upper rack; 8, sliding cylinder; 9, gear; 10, limit rod; 11, rotating ring; 12, rotating cylinder; 13, worm gear; 14, limit block; 15, annular groove; 16, arc groove; 17, rotating rod; 18, driver; 19, fixed shaft; 20, rotating block; 21, sliding ring; 22, spring; 23, worm; 24, motor; 25, inclined groove; 26, moving block; 27, groove; 28, rotating shaft; 29, cavity. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 9The present invention provides a technical solution: a regulating valve component cutting and processing device, comprising a feeding platform and a fixed frame 1 that can load and control the movement of a valve stem, a fixed ring 2 is fixedly installed in the fixed frame 1, and a plurality of sliding grooves are provided on the side wall of the fixed ring 2, each of the sliding grooves is provided with a sliding block 4 that can slide, and the sliding block 4 slides centrifugally or centrifugally, a tool 5 is fixedly installed on one centripetal end of the sliding block 4, and a feed channel 3 for the valve stem to pass through is jointly provided in the center of the fixed frame 1 and the fixed ring 2.

[0036] When the device is in use, the valve stem is first fixed by an external mobile platform and made to coincide with the center of the feed channel 3, and then the multiple sliding blocks 4 are driven to slide together toward the center. Figure 1 At this time, the sliding block 4 drives the tool 5 to slide centripetally until the tool 5 moves to the preset cutting position, and drives the valve stem to be processed into the feed channel 3 while maintaining a suitable rotation rate through the external mobile platform, so that multiple tools 5 cut the outer wall of the valve stem at a suitable cutting rate, completing the rapid cutting of the outer wall of the valve stem.

[0037] In this way, by setting up multiple adjustable tools 5 to cut the outer wall of the valve stem, the stress between the outer wall of the valve stem and the tool 5 can be shared by multiple tools 5, thereby reducing the cutting load borne by a single tool 5, reducing the wear of the tool head of the tool 5, and extending the service life of the tool 5. At the same time, it can also reduce the heat generated by the friction between a single tool 5 and the outer wall of the valve stem, and can prevent the tool head from overheating due to high temperature for a long time, causing thermal deformation of the tool head. It can not only improve the processing rate of the machine tool on the valve stem, but also improve the cutting accuracy of the machine tool on the valve stem.

[0038] Furthermore, a cavity 29 is opened in the fixed ring 2, and a plurality of moving blocks 26 distributed in a ring shape and corresponding to the sliding blocks 4 are installed on the inner wall of the cavity 29 away from the sliding block 4, and the plurality of moving blocks 26 and their extension lines can together form a regular polygon, and can be slidably adjusted in the same direction along the edge lines where they are located, and the side walls of the moving blocks 26 are provided with inclined grooves 25, and the side walls of the sliding block 4 are provided with protrusions that can slide in the inclined grooves 25.

[0039] According to the above embodiment, when the external structure drives the moving block 26 to slide along the inner wall of the cavity 29, Figure 5 If the moving block 26 slides to the right, the sliding block 4 can be driven to move backward through the inclined groove 25, that is, it can make a centrifugal motion along the fixed ring 2 to reduce the feed amount of the tool 5. If the moving block 26 slides to the left, the sliding block 4 can be driven to move forward, that is, it can make a centripetal motion along the fixed ring 2 to increase the feed amount of the tool 5, and the adjustment of multiple sliding blocks 4 and multiple tools 5 mentioned above can be completed.

[0040] In this way, the position of the tool 5 can be adjusted by driving the sliding block 4 to move back and forth along the fixed ring 2 through the inclined groove 25 on the side wall of the moving block 26. The cooperation between the inclined groove 25 and the sliding block 4 can be utilized to increase the moving stroke of the moving block 26 while reducing the moving stroke of the sliding block 4 and the tool 5, thereby improving the feed accuracy of the tool 5 and achieving the purpose of improving the valve stem processing quality.

[0041] Furthermore, a rack is slidably installed in the empty groove opened in the moving block 26, and the rack consists of a lower rack 6 and an upper rack 7. A rotatable sliding cylinder 8 is provided in the fixed frame 1, and a gear 9 that can mesh with the racks in multiple moving blocks 26 at the same time is fixed on the outer wall of the sliding cylinder 8.

[0042] According to the above embodiment, a specific embodiment of driving the moving block 26 to slide back and forth is provided. When the external structure drives the sliding cylinder 8 to rotate back and forth, the multiple moving blocks 26 will be driven to move back and forth through the engagement between the gear 9 and the multiple racks, thereby completing the driving of the multiple moving blocks 26 to slide synchronously as mentioned above. Since the transmission speeds of the multiple racks and the gear 9 are consistent, the multiple moving blocks 26 can drive the multiple sliding blocks 4 and the tools 5 to move synchronously, so that the cutting amount of the multiple tools 5 is consistent, thereby improving the processing quality and processing accuracy of the valve stem.

[0043] Furthermore, a rotating cylinder 12 is rotatably installed on the inner wall of the fixed frame 1, and the sliding cylinder 8 is slidably sleeved on the outer wall of the rotating cylinder 12 and is slidably connected through a spline. A worm gear 13 is fixed to the outer wall of the rotating cylinder 12, and a motor 24 is fixedly installed on the top surface of the fixed frame 1. The main shaft of the motor 24 is fixedly connected to a worm 23, and the worm 23 and the worm gear 13 are meshed with each other.

[0044] According to the above embodiment, a specific embodiment of driving the sliding cylinder 8 to rotate reciprocally is provided. When the motor 24 drives the worm 23 to rotate reciprocally, the worm wheel 13 will be driven to drive the rotating cylinder 12 to rotate reciprocally together. At this time, the rotating cylinder 12 drives the sliding cylinder 8 to rotate together through the spline, and the multiple moving blocks 26 can be driven to slide reciprocally through the gear 9, so as to achieve the purpose of synchronously driving multiple tools 5 to move centrifugally or centrifugally together, thereby completing high-precision adjustment of the tool 5. Moreover, due to the self-locking property of the worm wheel 13 and the worm 23, that is, the worm 23 can drive the worm wheel 13 to rotate but the worm wheel 13 cannot drive the worm 23 to rotate, after the adjustment is completed, the tool 5 cannot retreat when it is subjected to the reaction force of the valve stem, thereby improving the stability of the tool 5 during cutting, and further improving the machining accuracy of the machine tool on the valve stem.

[0045] Furthermore, a rotating ring 11 is rotatably installed on the inner wall of the fixed ring 2, and a plurality of grooves 27 are distributed in an annular manner on the inner wall of the rotating ring 11. A limit block 14 is rotatably installed in each groove 27, and a torsion spring is installed between the limit block 14 and the groove 27. The plurality of limit blocks 14 are all obliquely arranged in the same direction. The inner wall of the rotating ring 11 is also provided with an annular groove 15 composed of a plurality of V-shaped grooves and transverse grooves connected end to end. A plurality of limit rods 10 that can slide in the annular groove 15 are fixedly installed on the outer wall of the sliding cylinder 8.

[0046] According to the above embodiment, when the rotating cylinder 12 rotates counterclockwise under the drive of the worm gear 13, Figure 4 , it will drive the moving block 26 to move together. At this time, the sliding block 4 drives the tool 5 to do centrifugal movement together. Due to the setting of the limit block 14, the friction between the sliding cylinder 8 and the rotating ring 11 is increased, so that the rotating ring 11 rotates together with the sliding cylinder 8, which can increase the feed amount of the tool 5. When the cutting is completed, the worm 23 drives the worm wheel 13 to rotate clockwise. At this time, the sliding block 4 drives the tool 5 to do centrifugal movement together to reset the tool 5. Since the limit block 14 cannot continue to increase the friction between the sliding cylinder 8 and the rotating ring 11, the sliding cylinder 8 and the rotating ring 11 begin to rotate relative to each other. When the limit rod 10 slides along the transverse groove in the annular groove 15, the sliding block 4 drives the tool 5 to do centrifugal movement together to complete the reset. When the limit rod 10 slides along the V-shaped groove in the annular groove 15, the sliding cylinder 8 slides downward along the spline to make the gear 9 disengage from the meshing with the rack, and resumes the meshing with the rack after following the sliding cylinder to rotate a certain angle, thereby changing the meshing position of the gear 9 with each rack.

[0047] In this way, by continuously changing the meshing position of the rack and the gear 9 each time the tool 5 is reset, it is possible to avoid the meshing position of the gear 9 and the rack always being concentrated on some teeth in the gear 9 due to the limitation of the adjustment range of the tool 5, thereby avoiding the teeth at the meshing position from being engaged with the rack for a long time, causing metal fatigue, deformation or wear, and ensuring that the transmission ratios of multiple racks and gears 9 are consistent, which can avoid inconsistent feed amounts during the centripetal movement of multiple tools 5, resulting in reduced cutting accuracy on the outer wall of the valve stem.

[0048] Furthermore, an arc groove 16 is provided on the outer wall of the moving block 26, a fixed shaft 19 is fixedly installed on the outer wall of the moving block 26, a rotating rod 17 is rotatably installed on the outer wall of the fixed shaft 19, a rotating shaft 28 that can slide in the arc groove 16 is rotatably installed on one end of the rotating rod 17, one end of the rotating shaft 28 is slidably installed on the side wall of the rack, and the outer wall of the moving block 26 is also provided with a driver 18 that can drive the rotating rod 17 to swing back and forth.

[0049] According to the above embodiments, when the external driving structure such as a micro motor drives the driver 18 to rotate, the Figure 5 and Figure 6The driving drive 18 is rotatably mounted on the outer wall of the fixed shaft 19 in a V shape, and a toggle pin is fixedly mounted at both ends, that is, the reciprocating swing of the driving drive 18 can drive the rotating rod 17 to swing reciprocatingly together. When the limit rod 10 moves to the end of the transverse groove in the annular groove 15, that is, the tool 5 has completed the reset, the motor 24 is turned off and the driving drive 18 drives the rotating rod 17 to rotate and drive the rotating shaft 28 to slide in the arc groove 16. At the same time, the rotating shaft 28 slides on the side wall of the rack, driving the rack to slide in the empty groove in the moving block 26. When the rotating shaft 28 moves to the arc groove 16 is on the rightmost side, the upper rack 7 is disengaged from the gear 9 and the lower rack 6 is meshed with the gear 9, and when the rotating shaft 28 rotates to the left side of the arc groove 16, the lower rack 6 is disengaged from the gear 9 and the upper rack 7 is meshed with the gear 9, so that the upper rack 7 and the lower rack 6 are alternately meshed with the gear 9, reducing the wear and metal fatigue at the meshing point between the rack and the gear 9, thereby further improving the transmission ratio between the gear 9 and the rack, and after completing the switching of the upper rack 7 and the lower rack 6, the motor 24 is started to drive the meshing position of the gear 9 to rotate.

[0050] In this way, by driving the upper rack 7 and the lower rack 6 to alternately mesh with the gear 9, the wear and metal fatigue at the meshing point between the rack and the gear 9 are reduced, ensuring that the transmission ratio between the multiple racks and gears 9 is consistent, and cooperating with the rotation of the meshing point of the gear 9 in the above text, the wear and metal fatigue between the gear 9 and the rack are reduced to the greatest extent, and the synchronization rate of the multiple tools 5 is further improved, thereby greatly increasing the consistency of the feed amount of the multiple tools 5 on the valve stem and improving the processing accuracy of the valve stem.

[0051] Furthermore, a limit shaft is provided on the side wall of the moving block 26, and a rotating block 20 is rotatably installed between the limit shaft and the other end of the rotating rod 17. A sliding groove is provided on the side wall of the rotating block 20 for sliding of the connecting shaft between the rotating rod 17 and the rotating block 20. A fixedly installed sliding ring 21 and a slidably installed sliding ring 21 are provided on the outer wall of the rotating block 20, and the sliding ring 21 is abutted against the end of the rotating rod 17, and a spring 22 is provided between the two sliding rings 21.

[0052] According to the above embodiment, when the driver 18 drives the rotating rod 17 to rotate and drives the rotating shaft 28 to slide in the arc groove 16, the connecting shaft of the rotating rod 17 and the rotating block 20 slides in the sliding groove provided on the side wall of the rotating block 20, pushing the upper sliding ring 21 to overcome the elastic force of the spring 22 and slide downward. Figure 6 , until the rotating rod 17 and the rotating block 20 are in the same straight line. When the driver 18 continues to drive the rotating rod 17 to rotate, the rotating rod 17 rotates rapidly to the left under the drive of the spring 22, driving the rotating shaft 28 to slide rapidly to the left in the arc groove 16 to the leftmost side, completing the switching and locking of the upper rack 7 and the lower rack 6 mentioned above.

[0053] In this way, the sliding of the sliding ring 21 is limited by the spring 22, thereby completing the rotation restriction of the rotating rod 17, avoiding the vibration caused by the rigid contact between the gear 9 and the rack when rotating, causing the rack to slide continuously on the moving block 26, increasing the friction force at the contact point between the gear 9 and the rack, affecting the transmission between the gear 9 and multiple racks, reducing the feed synchronization rate of multiple tools 5, and thus affecting the processing accuracy of the valve stem.

[0054] Furthermore, when the rotating rod 17 and the rotating block 20 are both in the same straight line, the upper rack 6 or the lower rack 7 remains disengaged from the gear 9 .

[0055] According to the above embodiment, when the meshing position of the gear 9 is rotated, the rotating rod 17 and the rotating block 20 are firstly placed on the same straight line, that is, the rotating shaft 28 is at the highest point in the arc groove 16. Figure 6 At this time, the upper rack 6 and the lower rack 7 slide together to the highest point in the moving block 26, so that neither the upper rack 6 nor the lower rack 7 is engaged with the gear 9. After the meshing position of the gear 9 is driven to rotate, the rotating rod 17 is driven to rotate, so that the gear 9 can be prevented from still driving the rack to move a certain distance when the meshing position is rotated, causing the feed displacement and reset displacement of the tool 5 to deviate, thereby making the stroke of the limit rod 10 in the arc groove 16 uncontrolled, causing the device to get stuck or fail.

[0056] Furthermore, friction damping is provided at the connection between the outer wall of the rotating ring 11 and the fixed ring 2 .

[0057] According to the above embodiment, when the limit block 14 cannot continue to increase the friction force between the sliding cylinder 8 and the rotating ring 11, since the friction damping is provided at the connection between the outer wall of the rotating ring 11 and the fixed ring 2, and the friction damping is greater than the friction force between the sliding cylinder 8 and the rotating ring 11, the sliding cylinder 8 and the rotating ring 11 can be prevented from rotating together. When the limit block 14 increases the friction force between the sliding cylinder 8 and the rotating ring 11 to exceed the friction damping at the connection between the outer wall of the rotating ring 11 and the fixed ring 2, the moving cylinder 8 and the rotating ring 11 rotate together.

[0058] A method for using a cutting device for a regulating valve component comprises the following steps:

[0059] Step 1: When the device is used, the valve stem is first fixed by the external feeding platform and made to coincide with the center of the feeding channel 3, and then the worm 23 is driven by the motor 24 to rotate, driving the worm wheel 13 and the sliding cylinder 8 to rotate together;

[0060] Step 2: At this time, the gear 9 drives the multiple racks and the multiple moving blocks 26 to slide on the inner wall of the cavity 29, and drives the sliding block 4 to move centripetally through the inclined groove 25 on the side wall of the moving block 26, until the multiple sliding blocks 4 drive the multiple knives 5 to move to the preset cutting position;

[0061] Step 3: driving the external mobile platform to drive the valve stem into the feed channel 3 so that the valve stem and the cutter 5 abut against each other, maintaining the preset feed speed and providing a suitable rotation rate for the valve stem, and cooperating with the cutter 5 to cut the outer wall of the valve stem;

[0062] Step 4: After the cutting is completed, the motor 24 is driven to rotate in the reverse direction to drive the sliding block 4 and the tool 5 to reset. At this time, the limiting rod 10 slides in the transverse groove in the annular groove 15, and then the limiting rod 10 slides into the V-shaped part in the annular groove 15, so that the sliding cylinder 8 rotates and slides back and forth for a distance in the rotating cylinder 12, and in the process of reciprocating sliding, the gear 9 is disengaged from the meshing with the rack, thereby changing the meshing position of the gear 9 and the rack;

[0063] Step 5: Replace the valve stem to be processed and repeat steps 1 to 4 above.

[0064] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0065] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting and processing device for regulating valve parts, comprising a feeding platform and a fixing frame (1) capable of loading and controlling the movement of a valve stem, characterized in that: A fixing ring (2) is fixedly installed in the fixing frame (1), and a plurality of sliding grooves are provided on the side wall of the fixing ring (2). A sliding block (4) capable of sliding is provided in each of the sliding grooves, and the sliding block (4) slides centrifugally or centrifugally. A tool (5) is fixedly installed at one centripetal end of the sliding block (4). A feed channel (3) capable of allowing a valve stem to pass through is provided in the center of the fixing frame (1) and the fixing ring (2).

2. The regulating valve component cutting and processing device according to claim 1, characterized in that: A cavity (29) is provided in the fixed ring (2), and a plurality of moving blocks (26) are installed on the inner wall of the cavity (29) away from the sliding block (4) and distributed in an annular shape and corresponding to the sliding blocks (4) one by one. The plurality of moving blocks (26) and their extension lines can together form a regular polygon and can be slidably adjusted in the same direction along the edge lines where they are located. The side walls of the moving blocks (26) are provided with oblique grooves (25), and the side walls of the sliding block (4) are provided with protrusions that can slide in the oblique grooves (25).

3. The regulating valve component cutting and processing device according to claim 2, characterized in that: A rack is slidably installed in the empty groove opened in the moving block (26), and the rack consists of a lower rack (6) and an upper rack (7). A rotatable sliding cylinder (8) is provided in the fixed frame (1), and a gear (9) is fixed on the outer wall of the sliding cylinder (8) that can mesh with the racks in multiple moving blocks (26) at the same time.

4. The regulating valve component cutting and processing device according to claim 3, characterized in that: A rotating cylinder (12) is rotatably mounted on the inner wall of the fixed frame (1); the sliding cylinder (8) is slidably sleeved on the outer wall of the rotating cylinder (12) and is slidably connected via a spline; a worm wheel (13) is fixed to the outer wall of the rotating cylinder (12); a motor (24) is fixedly mounted on the top surface of the fixed frame (1); a worm (23) is fixedly connected to the main shaft of the motor (24), and the worm (23) and the worm wheel (13) are meshed with each other.

5. The regulating valve component cutting and processing device according to claim 4, characterized in that: A rotating ring (11) is rotatably mounted on the inner wall of the fixed ring (2). A plurality of grooves (27) are annularly distributed on the inner wall of the rotating ring (11). A limit block (14) is rotatably mounted in each of the grooves (27). A torsion spring is installed between the limit block (14) and the groove (27). The plurality of limit blocks (14) are all obliquely arranged in the same direction. The inner wall of the rotating ring (11) is also provided with an annular groove (15) composed of a plurality of V-shaped grooves and transverse grooves connected end to end. A plurality of limit rods (10) capable of sliding in the annular groove (15) are fixedly mounted on the outer wall of the sliding cylinder (8).

6. The regulating valve component cutting and processing device according to claim 3, characterized in that: The outer wall of the moving block (26) is provided with an arc groove (16), the outer wall of the moving block (26) is fixedly mounted with a fixed shaft (19), the outer wall of the fixed shaft (19) is rotatably mounted with a rotating rod (17), one end of the rotating rod (17) is rotatably mounted with a rotating shaft (28) that can slide in the arc groove (16), one end of the rotating shaft (28) is slidably mounted on the side wall of the rack, and the outer wall of the moving block (26) is also provided with a driver (18) that can drive the rotating rod (17) to reciprocate.

7. The regulating valve component cutting and processing device according to claim 6, characterized in that: A limit shaft is provided on the side wall of the moving block (26); a rotating block (20) is rotatably mounted between the limit shaft and the other end of the rotating rod (17); a sliding groove is provided on the side wall of the rotating block (20) for sliding movement of the connecting shaft of the rotating rod (17) and the rotating block (20); a fixedly mounted sliding ring (21) and a slidably mounted sliding ring (21) are provided on the outer wall of the rotating block (20); the sliding ring (21) and the end of the rotating rod (17) are abutted against each other; and a spring (22) is provided between the two sliding rings (21).

8. The regulating valve component cutting and processing device according to claim 7, characterized in that: When the rotating rod (17) and the rotating block (20) are both in the same straight line, the upper rack (6) or the lower rack (7) is kept disengaged from the gear (9).

9. The regulating valve component cutting and processing device according to claim 5, characterized in that: Friction damping is provided at the connection between the outer wall of the rotating ring (11) and the fixed ring (2).

10. A method for using the regulating valve component cutting and processing device according to claim 9, characterized in that: The following steps are involved: Step 1: When the device is used, the valve stem is first fixed by the external feeding platform and made to coincide with the center of the feeding channel (3), and then the worm (23) is driven by the motor (24) to rotate, driving the worm wheel (13) and the sliding cylinder (8) to rotate together; Step 2: At this time, the gear (9) drives the multiple racks and the multiple moving blocks (26) to slide on the inner wall of the cavity (29), and drives the sliding block (4) to move centripetally through the inclined groove (25) on the side wall of the moving block (26), until the multiple sliding blocks (4) drive the multiple cutting tools (5) to move to the preset cutting position; Step 3: driving the external mobile platform to drive the valve stem into the feed channel (3) so that the valve stem and the cutter (5) abut against each other, maintaining a preset feed speed and providing a suitable rotation rate for the valve stem, and cooperating with the cutter (5) to cut the outer wall of the valve stem; Step 4: When the cutting is completed, the motor (24) is driven to rotate in the reverse direction to drive the sliding block (4) and the tool (5) to reset. At this time, the limiting rod (10) slides in the transverse groove in the annular groove (15), and then the limiting rod (10) slides into the V-shaped part in the annular groove (15), so that the sliding cylinder (8) rotates and slides back and forth for a distance in the rotating cylinder (12), and in the process of reciprocating sliding, the gear (9) is disengaged from the meshing with the rack, thereby changing the meshing position of the gear (9) and the rack; Step 5: Replace the valve stem to be processed and repeat steps 1 to 4 above.

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