Surface treatment device and process for metal parts of valve

Abstract

The present invention belongs to the field of valve processing technology, and discloses a surface treatment device and process for valve metal parts, including a base, a material conveying platform is arranged on the upper surface of the base, a lifting and rotating mechanism is arranged on the upper surface of the base, the lifting and rotating mechanism includes a support platform, the height adjustment action is realized according to the size of the valve through the lifting and rotating mechanism, and the valve is driven to perform positioning, rotating and polishing action, a hole spacing adjustment inner support mechanism is arranged on the upper surface of the base, the hole spacing adjustment inner support mechanism includes an adjusting disk, and the hole spacing adjustment inner support mechanism is located on one side of the lifting and rotating mechanism. The present invention realizes lifting height adjustment according to the size of the valve through the lifting and rotating mechanism, so that the center height of the adjusting disk and the valve is adjusted and positioned, so that it is suitable for polishing valves of different sizes, and drives the valve to perform automatic rotation, grinding and polishing.

Description

Technical Field

[0001] The invention belongs to the technical field of valve processing, and in particular relates to a surface processing device and process for metal parts of a valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Valves are mainly used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. There are many types of valves. According to the structural characteristics, they can be divided into gates, gates, spherical, butterfly, etc. According to the driving mode, they can be divided into electric, hydraulic, pneumatic, manual, etc. According to the purpose, they can be divided into opening, checking, regulating, distributing, safety, etc. Valves are widely used in petroleum, chemical, fertilizer, metallurgy, pharmaceuticals, electricity, mining, water supply and drainage, heating and other industries. In the valve production process, it is necessary to remove burrs on the surface of the valve and polish it. The existing valve deburring and polishing methods are generally mainly operated on lathes. The lathe needs to wait for the valve components to be processed before processing the next valve. There are many processes, which leads to reduced efficiency.

[0003] For example, a surface treatment process for valve metal parts disclosed in a Chinese patent document (Announcement No.: CN114290217B) is disclosed. Although this patent sets a clamping mechanism at the front and rear ends respectively, and sets a rotating hydraulic column inside the clamping mechanism, a chuck is set at the front end of the rotating hydraulic column, and positioning bolts of the number and specifications corresponding to the holes on the valve body are set on the chuck, the rotating hydraulic column can extend and retract the chuck, and the positioning bolts can be inserted into the fixed holes on the valve body when extended to clamp the valve, and the rotating motor can rotate the rotating hydraulic column when started, thereby rotating the clamped valve, which is convenient for the polishing wheel and cutting head above to remove burrs and perform grinding and polishing operations.

[0004] However, the iron bolt on the metal disk that limits the valve body is fixed by welding. Since the position of the iron bolt is fixed, a single metal disk can only match the valve body of the same model. Therefore, when polishing valve bodies of different models, the metal disk needs to be disassembled and replaced. The metal disk is heavy, which makes the replacement operation cumbersome and requires low labor. The iron bolt is inserted into the corresponding hole of the valve body, and then the valve body is driven to rotate and polish through the rotation of the metal disk. Since there is a certain movable space between the hole of the valve body and the outer surface of the iron bolt, when the valve body is rotated and polished, the movable space in the hole and the iron bolt can easily reduce the stability of the valve body during rotation, thereby reducing the polishing accuracy of the valve body surface. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a surface treatment device and process for valve metal parts, which has the function of stably supporting, positioning and rotating the valve, thereby improving the polishing accuracy of the valve, and through automatic adjustment, it is suitable for supporting and positioning valves of different models and sizes. It is not only convenient to operate, but also expands the scope of application and reduces the effect of manual labor.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface treatment device for valve metal parts, comprising a base, a material conveying platform is arranged on the upper surface of the base, a lifting and rotating mechanism is arranged on the upper surface of the base, the lifting and rotating mechanism comprises a support platform, and the lifting and rotating mechanism is used to realize height adjustment according to the size of the valve, and drive the valve to perform positioning, rotating and polishing actions;

[0008] The upper surface of the base is provided with a hole spacing adjustment internal support mechanism, and the hole spacing adjustment internal support mechanism includes an adjustment disk. The hole spacing adjustment internal support mechanism is located on one side of the lifting and rotating mechanism. The hole spacing adjustment internal support mechanism can realize automatic contraction adjustment according to the hole spacing on the valve, and perform internal support center positioning action in the valve hole.

[0009] Preferably, the two support platforms are symmetrically distributed with the upper surface axis of the base as the center, the lower surface of the support platform is fixedly connected to the upper surface of the base, the upper surface of the support platform is fixedly connected with symmetrically distributed guide rods, the outer surfaces of the two guide rods are movably sleeved with lifting blocks, the upper surface of the support platform is fixedly installed with a first servo electric cylinder, one end of the piston rod of the first servo electric cylinder is fixedly connected to the lower surface of the lifting block, and a mounting groove is provided on one side surface of the lifting block, and the guide rod plays a role in guiding and limiting the lifting and lowering adjustment of the lifting block.

[0010] Preferably, a second servo electric cylinder is fixedly installed on the inner wall of one side of the installation groove, one end of the piston rod of the second servo electric cylinder is installed with a limit rod through a bearing, the outer surface of the limit rod is fixedly connected with symmetrically distributed limit strips, one end of the limit rod passes through and extends to the one side surface of the lifting block, one side surface of the lifting block is provided with an annular positioning groove, the inner wall of the annular positioning groove is slidably connected with an arc-shaped slider distributed in an annular array, one side surface of multiple arc-shaped sliders are fixedly connected with a driven gear, the annular positioning groove and the arc-shaped slider cooperate with the driven gear for positioning and rotation, and the limit rod is able to perform telescopic movement and rotational movement at the same time through the cooperation of the limit strip.

[0011] Preferably, the inner wall of the driven gear is movably connected with the outer surface of the limit rod, and the upper surface of the lifting block is fixedly installed with a first servo motor, and the output shaft of the first servo motor is fixedly installed with a first rotating shaft through a coupling, and the outer surface of one end of the first rotating shaft is fixedly connected with a first gear, and the tooth surface of the first gear is meshed with the tooth surface of the driven gear, and the two adjusting disks are symmetrically distributed with the upper surface axis of the base as the center, one side surface of the adjusting disk is fixedly connected to one end of the limit rod, and the other side surface of the adjusting disk is provided with guide grooves distributed in a ring array, and a rotating rod is installed on the inner wall of one side of the adjusting disk through a bearing, and the first servo motor drives the first gear to rotate through the first rotating shaft, and the rotation of the first gear drives the limit rod to rotate through the driven gear, and the rotation of the limit rod drives the adjusting disk to rotate.

[0012] Preferably, one end of the rotating rod is fixedly connected to a driving disk, the outer surface of the driving disk is provided with driving grooves distributed in a ring array, the outer surface of the driving disk is fixedly sleeved with an outer gear ring, the outer surface of the adjusting disk is provided with a connecting slot, the outer surface of the adjusting disk is fixedly mounted with a second servo motor via a mounting seat, the output shaft of the second servo motor is fixedly mounted with a second rotating shaft via a coupling, the outer surface of one end of the second rotating shaft is fixedly sleeved with a second gear, the second servo motor drives the second gear to rotate via the second rotating shaft, and the rotation of the second gear drives the driving disk to rotate through the meshing outer gear ring.

[0013] Preferably, the tooth surface of the second gear meshes with the tooth surface of the outer gear ring, and the inner wall of one side of the adjusting disk is provided with a limiting slide groove distributed in a ring array, and the inner wall of the limiting slide groove is slidably sleeved with a limiting slider, and one side surface of the limiting slider is fixedly connected with an inner support sleeve, and the outer surface of the inner support sleeve is respectively slidably inserted with the inner walls of the driving groove and the guide groove, and one end of the inner support sleeve penetrates and extends to the other side surface of the adjusting disk, and the limiting slide groove and the limiting slider play a role in limiting and guiding the adjustment movement of the inner support sleeve.

[0014] Preferably, the outer surface of the inner support sleeve is provided with symmetrically distributed through grooves, the outer surface of the inner support sleeve is provided with a travel groove, a third servo electric cylinder is fixedly installed on the inner wall on the other side of the adjusting disk, one end of the piston rod of the third servo electric cylinder is fixedly connected to a moving disk, the outer surface of the moving disk is fixedly connected to telescopic rods distributed in a ring array, the outer surface of the telescopic rod is movably sleeved with a travel block, the moving disk plays a role in synchronously driving the movement of multiple telescopic rods and travel blocks, the extension and retraction of the travel block and the telescopic rod plays a role in cooperating with the inner support sleeve for adjustment.

[0015] Preferably, one end of the travel block passes through the travel groove and extends to the interior of the inner supporting sleeve, one side surface of the travel block is fixedly connected to a driving rod, one end of the driving rod is hinged to a symmetrically distributed swing rod through a pin shaft, one end of the swing rod is hinged to a support through a pin shaft, one side surface of the support is fixedly connected to a sliding block, the travel groove serves to guide and limit the movement of the travel block, and the movement of the driving rod drives the swing rod to swing through the cooperation of the support.

[0016] Preferably, the inner walls of the two sliding blocks are slidably sleeved with sliding rods, both ends of the sliding rods are fixedly connected to the inner wall of the inner support sleeve, the outer surface of the sliding rod is movably sleeved with a contraction spring, the two ends of the contraction spring are respectively fixedly connected to the opposite surfaces of the two sliding blocks, one side surface of the sliding block is fixedly connected to the inner support block, one end of the inner support block is arc-shaped, the upper surfaces of the two lifting blocks are fixedly connected to polishing brackets, the inner wall of the polishing bracket is fixedly installed with a hydraulic cylinder, one end of the hydraulic cylinder piston rod is fixedly connected to the polishing block, the elastic contraction effect of the contraction spring drives the inner support block to reset and move through the sliding block, one end of the inner support block is provided with an anti-slip groove, and a pressure sensor can be provided inside, and when the contact extrusion pressure with the valve hole reaches a preset value, it stops extending.

[0017] The present invention also provides a surface treatment process for valve metal parts, and the specific treatment process is:

[0018] S1: Select brass as the main material, turn the valve and make holes on the lathe;

[0019] S2: The valve is cleaned after sand throwing and then nickel plated after being soaked in phosphoric acid solution for one minute;

[0020] S3: placing the valve on the material conveying platform, and the valve is conveyed by the material conveying platform to between two hole spacing adjustment inner support mechanisms;

[0021] S4: The piston rod of the first servo electric cylinder extends and drives the lifting block to move upward through the cooperation of the guide rod. The upward movement of the lifting block drives the adjusting plate to move upward through the limit rod, so that the center height of the adjusting plate and the valve can be adjusted and positioned according to the size of different valves;

[0022] S5: The second servo motor drives the second gear to rotate through the second rotating shaft, and the rotation of the second gear drives the driving plate to rotate through the meshing outer gear ring. The rotation of the driving plate causes the inner support sleeve to move and adjust through the cooperation of the limit sliding groove and the limit sliding block through the cooperation of the driving groove, so that the inner support sleeve moves to match the opening position on the valve;

[0023] S6: The piston rod of the second servo electric cylinder extends and drives the adjustment disk to move through the limit rod. The relative movement of the two adjustment disks drives the inner support sleeve to be inserted into the hole of the valve. Then the piston rod of the third servo electric cylinder retracts and drives the driving rod to move through the cooperation of the moving disk, the telescopic rod and the stroke block. The movement of the driving rod drives the inner support block to move through the cooperation of the swing rod and the support. The movement of the inner support block causes it to pass through the through slot and fit and support the inner wall of the valve hole.

[0024] S7: The first servo motor drives the first gear to rotate through the first rotating shaft, and the rotation of the first gear drives the limit rod to rotate through the meshing driven gear, and the driven gear is positioned and rotated through the cooperation of the annular positioning slide groove and the arc-shaped slider, and the rotation of the limit rod drives the valve to rotate through the cooperation of the adjustment disk and the inner support sleeve. At this time, the polishing block is driven to move downward by the extension of the hydraulic cylinder piston rod, and polishing is performed by the polishing block contacting the rotating valve;

[0025] S8: After polishing is completed, the first servo motor stops working, and at the same time, the piston rod of the third servo electric cylinder extends, thereby driving the inner support block to reset and retract through the elastic force of the contraction spring. Finally, the piston rod of the second servo electric cylinder retracts, and the inner support sleeve is separated from the hole of the valve through the reset movement of the limit rod and the adjusting disk. At this time, the valve is placed above the material conveying table and sent to the next process.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention realizes lifting height adjustment according to the size of the valve through the lifting and rotating mechanism, so that the center height of the adjusting disk and the valve can be adjusted and positioned, so that it is suitable for polishing valves of different sizes and drives the valve to perform automatic rotation grinding and polishing.

[0028] 2. The present invention adjusts the internal support mechanism through the hole spacing to achieve automatic contraction adjustment according to the size of the valve and the spacing of the openings, and positions the center of the internal support in the valve hole, which not only improves the scope of application, but also avoids the generation of gaps between the hole and the internal support sleeve, thereby allowing the valve to be stably rotated and polished, thereby improving the polishing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a three-dimensional diagram of the lifting block structure of the present invention;

[0031] Figure 3 This is an exploded view of the lifting block structure of the present invention;

[0032] Figure 4 This is a three-dimensional diagram of the structure of the adjustment disk of the present invention;

[0033] Figure 5 This is a three-dimensional diagram of the drive disk structure of the present invention;

[0034] Figure 6 This is an exploded view of the adjusting disk structure of the present invention;

[0035] Figure 7 It is a three-dimensional diagram of the inner support sleeve structure of the present invention;

[0036] Figure 8 For the present invention Figure 7 A magnified view of the structure in the middle.

[0037] In the figure: 1, base; 2, material conveying platform; 3, support platform; 31, guide rod; 32, lifting block; 33, first servo electric cylinder; 34, mounting groove; 35, second servo electric cylinder; 36, limit rod; 37, limit bar; 38, annular positioning slide groove; 39, arc-shaped slider; 310, driven gear; 311, first servo motor; 312, first rotating shaft; 313, first gear; 4, adjusting plate; 41, guide notch; 42, rotating rod; 43, driving plate; 44, driving groove; 45, outer gear ring; 46, connecting groove 47. second servo motor; 48. second rotating shaft; 49. second gear; 410. limit slide groove; 411. limit slider; 412. inner supporting sleeve; 413. through groove; 414. travel groove; 415. third servo electric cylinder; 416. moving plate; 417. telescopic rod; 418. travel block; 419. driving rod; 420. swing rod; 421. support; 422. sliding block; 423. sliding rod; 424. contraction spring; 425. inner supporting block; 5. polishing bracket; 6. hydraulic cylinder; 7. polishing block. DETAILED DESCRIPTION

[0038] 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. Embodiment 1

[0039] like Figures 1 to 8 As shown, the present invention provides a surface treatment device for valve metal parts, including a base 1, a material conveying platform 2 is provided on the upper surface of the base 1, a lifting and rotating mechanism is provided on the upper surface of the base 1, and the lifting and rotating mechanism includes a support platform 3. The lifting and rotating mechanism is used to achieve height adjustment according to the size of the valve, and drives the valve to perform positioning, rotating and polishing actions;

[0040] The upper surface of the base 1 is provided with a hole spacing adjustment internal support mechanism, which includes an adjustment disk 4. The hole spacing adjustment internal support mechanism is located on one side of the lifting and rotating mechanism. The hole spacing adjustment internal support mechanism is used to realize automatic contraction adjustment according to the hole spacing on the valve, and the internal support center positioning action is performed in the valve hole.

[0041] The above scheme is adopted: through the coordinated use of the lifting and rotating mechanism and the hole spacing adjustment internal support mechanism, the internal support fixation of valves of different sizes and models is achieved through automatic adjustment of the spacing, and the internal support fixation avoids the generation of gaps in the valve hole, which not only improves the scope of application, but also improves the effect of polishing accuracy.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the two support platforms 3 are symmetrically distributed with the upper surface axis of the base 1 as the center, the lower surface of the support platform 3 is fixedly connected to the upper surface of the base 1, the upper surface of the support platform 3 is fixedly connected with guide rods 31 which are symmetrically distributed, the outer surfaces of the two guide rods 31 are movably sleeved with lifting blocks 32, the upper surface of the support platform 3 is fixedly installed with a first servo electric cylinder 33, one end of the piston rod of the first servo electric cylinder 33 is fixedly connected to the lower surface of the lifting block 32, a mounting groove 34 is provided on one side surface of the lifting block 32, a second servo electric cylinder 35 is fixedly installed on the inner wall of one side of the mounting groove 34, one end of the piston rod of the second servo electric cylinder 35 is installed with a limit rod 36 through a bearing, and the outer surface of the limit rod 36 is fixedly connected with a symmetrically distributed A limit strip 37 is provided, one end of the limit rod 36 passes through and extends to one side surface of the lifting block 32, an annular positioning groove 38 is provided on one side surface of the lifting block 32, and an inner wall of the annular positioning groove 38 is slidably connected with an arc-shaped slider 39 distributed in an annular array, one side surface of multiple arc-shaped sliders 39 are fixedly connected with a driven gear 310, the inner wall of the driven gear 310 is movably sleeved with the outer surface of the limit rod 36, a first servo motor 311 is fixedly installed on the upper surface of the lifting block 32, the output shaft of the first servo motor 311 is fixedly installed with a first rotating shaft 312 through a coupling, one end of the first rotating shaft 312 is fixedly sleeved with a first gear 313 on the outer surface, and the tooth surface of the first gear 313 is meshed with the tooth surface of the driven gear 310.

[0043] The above scheme is adopted: the piston rod of the first servo electric cylinder 33 is extended, and the lifting block 32 is driven to move upward through the cooperation of the guide rod 31. The upward movement of the lifting block 32 drives the adjusting disk 4 to move upward through the limit rod 36, so that the center height of the adjusting disk 4 and the valve can be adjusted and positioned according to the size of different valves, so that the valve can be positioned, rotated and polished with the center point as the center when clamping and rotating, and the first servo motor 311 drives the first gear 313 to rotate through the first rotating shaft 312. The rotation of the first gear 313 drives the limit rod 36 to rotate through the meshing driven gear 310, and the driven gear 310 is positioned and rotated through the cooperation of the annular positioning groove 38 and the arc slider 39. The limit rod 36 can perform telescopic movement through the cooperation of the limit bar 37, and can also be rotated through the cooperation of the driven gear 310. When rotating, it is positioned and rotated through the cooperation of the piston rod of the second servo electric cylinder 35 and the bearing.

[0044] like Figures 1 to 8As shown, the two adjusting disks 4 are symmetrically distributed with the axis of the upper surface of the base 1 as the center, one side surface of the adjusting disk 4 is fixedly connected to one end of the limit rod 36, and the other side surface of the adjusting disk 4 is provided with guide slots 41 distributed in a ring array, and a rotating rod 42 is installed on the inner wall of one side of the adjusting disk 4 through a bearing, and one end of the rotating rod 42 is fixedly connected to a driving disk 43, and the outer surface of the driving disk 43 is provided with driving grooves 44 distributed in a ring array, and the outer surface of the driving disk 43 is fixedly sleeved with an outer gear ring 45, and the outer surface of the adjusting disk 4 is provided with a connecting slot 46, and the outer surface of the adjusting disk 4 is fixedly installed with a second servo motor 47 through a mounting seat, and the output shaft of the second servo motor 47 is fixedly connected through a coupling. A second rotating shaft 48 is fixedly installed, and a second gear 49 is fixedly sleeved on the outer surface of one end of the second rotating shaft 48. The tooth surface of the second gear 49 meshes with the tooth surface of the outer gear ring 45. A limiting slide groove 410 distributed in a ring array is opened on the inner wall of one side of the adjusting disk 4. The inner wall of the limiting slide groove 410 is slidably sleeved with a limiting slider 411. An inner support sleeve 412 is fixedly connected to the surface of one side of the limiting slider 411. The outer surfaces of the inner support sleeve 412 are respectively slidably inserted with the inner walls of the driving groove 44 and the guide groove 41. One end of the inner support sleeve 412 passes through and extends to the other side surface of the adjusting disk 4. The outer surface of the inner support sleeve 412 is opened with symmetrically distributed through grooves 413. The inner support sleeve A travel groove 414 is provided on the outer surface of the cylinder 412, and a third servo electric cylinder 415 is fixedly installed on the inner wall of the other side of the adjusting disk 4, and one end of the piston rod of the third servo electric cylinder 415 is fixedly connected to a moving disk 416, and the outer surface of the moving disk 416 is fixedly connected to telescopic rods 417 distributed in a ring array, and the outer surface of the telescopic rod 417 is movably sleeved with a travel block 418, and one end of the travel block 418 passes through the travel groove 414 and extends to the inside of the inner supporting sleeve 412, and a driving rod 419 is fixedly connected to the surface of one side of the travel block 418, and one end of the driving rod 419 is hinged to a symmetrically distributed swing rod 420 through a pin shaft, and one end of the swing rod 420 is hinged to a support through a pin shaft 421, a sliding block 422 is fixedly connected to the surface of one side of the support 421, and a sliding rod 423 is slidably sleeved on the inner walls of the two sliding blocks 422. Both ends of the sliding rod 423 are fixedly connected to the inner wall of the inner support sleeve 412, and a contraction spring 424 is movably sleeved on the outer surface of the sliding rod 423. Both ends of the contraction spring 424 are respectively fixedly connected to the opposite surfaces of the two sliding blocks 422. An inner support block 425 is fixedly connected to the surface of the sliding block 422, and one end of the inner support block 425 is arc-shaped. The upper surfaces of the two lifting blocks 32 are fixedly connected to the polishing bracket 5. A hydraulic cylinder 6 is fixedly installed on the inner wall of the polishing bracket 5, and one end of the piston rod of the hydraulic cylinder 6 is fixedly connected to the polishing block 7.

[0045] The above scheme is adopted: the second servo motor 47 drives the second gear 49 to rotate through the second rotating shaft 48, and the rotation of the second gear 49 drives the driving plate 43 to rotate through the meshing outer gear ring 45. The rotation of the driving plate 43 causes the inner support sleeve 412 to move and adjust through the cooperation of the limit slide groove 410 and the limit slide block 411 through the cooperation of the driving groove 44, so that the inner support sleeve 412 moves to match the opening position on the valve, and retracts through the piston rod of the third servo electric cylinder 415, and drives the cooperation of the moving plate 416, the telescopic rod 417 and the travel block 418. The driving rod 419 moves, and the movement of the driving rod 419 enables the sliding block 422 to drive the inner support block 425 to move through the through groove 413 and fit the inner wall of the valve hole to support it, thereby avoiding the formation of a gap with the hole of the valve, thereby improving the stability of the valve during rotation and improving the polishing accuracy. The polishing bracket 5 can be replaced with a movable bracket that can be matched with the polishing block 7 according to the usage situation. The polishing block 7 can also be replaced with different models and shapes according to usage requirements. Since it belongs to mature existing technologies, it will not be repeated here. Embodiment 2

[0046] like Figures 1 to 8 As shown, a surface treatment process for valve metal parts includes the following steps:

[0047] S1: Select brass as the main material, turn the valve and make holes on the lathe;

[0048] S2: The valve is cleaned after sand throwing and then nickel plated after being soaked in phosphoric acid solution for one minute;

[0049] S3: placing the valve above the material conveying platform 2, and the valve is conveyed by the material conveying platform 2 to between two hole spacing adjustment inner support mechanisms;

[0050] S4: The piston rod of the first servo electric cylinder 33 extends and drives the lifting block 32 to move upward through the cooperation of the guide rod 31. The upward movement of the lifting block 32 drives the adjusting plate 4 to move upward through the limit rod 36, so that the adjusting plate 4 and the center height of the valve can be adjusted and positioned according to the size of different valves;

[0051] S5: The second servo motor 47 drives the second gear 49 to rotate through the second rotating shaft 48. The rotation of the second gear 49 drives the driving plate 43 to rotate through the meshing outer gear ring 45. The rotation of the driving plate 43 enables the inner support sleeve 412 to move and adjust through the cooperation of the limiting sliding groove 410 and the limiting sliding block 411 through the cooperation of the driving groove 44, so that the inner support sleeve 412 moves to match the opening position on the valve;

[0052] S6: The piston rod of the second servo electric cylinder 35 extends and drives the adjustment disk 4 to move through the limit rod 36. The relative movement of the two adjustment disks 4 drives the inner support sleeve 412 to insert into the hole of the valve. Then the piston rod of the third servo electric cylinder 415 retracts and drives the driving rod 419 to move through the cooperation of the moving disk 416, the telescopic rod 417 and the stroke block 418. The movement of the driving rod 419 drives the sliding block 422 to drive the inner support block 425 to move through the cooperation of the swing rod 420 and the support 421. The movement of the inner support block 425 allows it to pass through the through groove 413 and fit and support the inner wall of the valve hole.

[0053] S7: The first servo motor 311 drives the first gear 313 to rotate through the first rotating shaft 312. The rotation of the first gear 313 drives the limiting rod 36 to rotate through the meshing driven gear 310. The driven gear 310 is positioned and rotated through the cooperation of the annular positioning groove 38 and the arc-shaped slider 39. The rotation of the limiting rod 36 drives the valve to rotate through the cooperation of the adjusting disk 4 and the inner supporting sleeve 412. At this time, the polishing block 7 is driven to move downward by the extension of the piston rod of the hydraulic cylinder 6, and the polishing block 7 contacts the rotating valve for polishing.

[0054] S8: After polishing is completed, the first servo motor 311 stops working, and at the same time, the piston rod of the third servo electric cylinder 415 extends, thereby driving the inner support block 425 to reset and retract through the elastic force of the contraction spring 424, and finally the piston rod of the second servo electric cylinder 35 retracts, and the inner support sleeve 412 is separated from the hole of the valve through the reset movement of the limit rod 36 and the adjusting disk 4. At this time, the valve is placed above the material conveying platform 2 and sent to the next process.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] 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 surface treatment device for valve metal parts, characterized in that: It comprises a base (1), the upper surface of the base (1) is provided with a material conveying platform (2), the upper surface of the base (1) is provided with a lifting and rotating mechanism, the lifting and rotating mechanism comprises a supporting platform (3), and the lifting and rotating mechanism is used to achieve height adjustment according to the size of the valve and drive the valve to perform positioning, rotating and polishing actions; The upper surface of the base (1) is provided with a hole spacing adjustment inner support mechanism, the hole spacing adjustment inner support mechanism comprises an adjustment disk (4) for performing contraction adjustment on the valve hole spacing and an inner support sleeve (412), and also comprises an inner support block (425) for performing center support positioning in the valve hole, the hole spacing adjustment inner support mechanism is located on one side of the lifting and rotating mechanism, and the hole spacing adjustment inner support mechanism is used to realize automatic contraction adjustment according to the hole spacing on the valve, and perform an inner support center positioning action in the valve hole; The two support platforms (3) are symmetrically distributed with the axis of the upper surface of the base (1) as the center; the lower surface of the support platform (3) is fixedly connected to the upper surface of the base (1); the upper surface of the support platform (3) is fixedly connected to guide rods (31) that are symmetrically distributed; the outer surfaces of the two guide rods (31) are movably sleeved with lifting blocks (32); a first servo electric cylinder (33) is fixedly installed on the upper surface of the support platform (3); one end of the piston rod of the first servo electric cylinder (33) is fixedly connected to the lower surface of the lifting block (32); and a mounting groove (34) is provided on one side surface of the lifting block (32); A second servo electric cylinder (35) is fixedly mounted on an inner wall of one side of the mounting groove (34); a limiting rod (36) is mounted on one end of a piston rod of the second servo electric cylinder (35) via a bearing; a symmetrically distributed limiting strip (37) is fixedly connected to the outer surface of the limiting rod (36); one end of the limiting rod (36) penetrates and extends to a side surface of the lifting block (32); an annular positioning groove (38) is provided on one side surface of the lifting block (32); an arc-shaped sliding block (39) distributed in an annular array is slidably connected to the inner wall of the annular positioning groove (38); a driven gear (310) is fixedly connected to one side surface of each of the plurality of arc-shaped sliding blocks (39); The upper surfaces of the two lifting blocks (32) are fixedly connected to polishing brackets (5), the inner wall of the polishing bracket (5) is fixedly mounted with a hydraulic cylinder (6), and one end of the piston rod of the hydraulic cylinder (6) is fixedly connected to a polishing block (7).

2. The surface treatment device for valve metal parts according to claim 1, characterized in that: The inner wall of the driven gear (310) is movably sleeved with the outer surface of the limit rod (36); a first servo motor (311) is fixedly mounted on the upper surface of the lifting block (32); an output shaft of the first servo motor (311) is fixedly mounted with a first rotating shaft (312) via a coupling; a first gear (313) is fixedly sleeved on the outer surface of one end of the first rotating shaft (312); a tooth surface of the first gear (313) meshes with a tooth surface of the driven gear (310); the two adjusting disks (4) are symmetrically distributed with the axis of the upper surface of the base (1) as the center; one side surface of the adjusting disk (4) is fixedly connected to one end of the limit rod (36); the other side surface of the adjusting disk (4) is provided with guide notches (41) distributed in a ring array; and a rotating rod (42) is mounted on the inner wall of one side of the adjusting disk (4) via a bearing.

3. The surface treatment device for valve metal parts according to claim 2, characterized in that: One end of the rotating rod (42) is fixedly connected to a driving disk (43); the outer surface of the driving disk (43) is provided with driving grooves (44) distributed in a ring array; the outer surface of the driving disk (43) is fixedly sleeved with an outer gear ring (45); the outer surface of the adjusting disk (4) is provided with a connecting notch (46); the outer surface of the adjusting disk (4) is fixedly mounted with a second servo motor (47) via a mounting seat; the output shaft of the second servo motor (47) is fixedly mounted with a second rotating shaft (48) via a coupling; and the outer surface of one end of the second rotating shaft (48) is fixedly sleeved with a second gear (49).

4. The surface treatment device for valve metal parts according to claim 3, characterized in that: The tooth surface of the second gear (49) meshes with the tooth surface of the outer gear ring (45); a limiting slide groove (410) distributed in a ring array is provided on the inner wall of one side of the adjustment disk (4); the inner wall of the limiting slide groove (410) is slidably sleeved with a limiting slider (411); the outer surface of the inner support sleeve (412) is slidably plugged with the inner walls of the driving groove (44) and the guide groove (41), respectively; one end of the inner support sleeve (412) penetrates and extends to the other side surface of the adjustment disk (4).

5. The surface treatment device for valve metal parts according to claim 4, characterized in that: The outer surface of the inner support sleeve (412) is provided with symmetrically distributed through grooves (413), the outer surface of the inner support sleeve (412) is provided with a travel groove (414), a third servo electric cylinder (415) is fixedly mounted on the inner wall of the other side of the adjustment disk (4), one end of the piston rod of the third servo electric cylinder (415) is fixedly connected to a moving disk (416), the outer surface of the moving disk (416) is fixedly connected to telescopic rods (417) distributed in a ring array, and the outer surface of the telescopic rods (417) is movably sleeved with a travel block (418).

6. The surface treatment device for valve metal parts according to claim 5, characterized in that: One end of the travel block (418) passes through the travel groove (414) and extends to the interior of the inner support sleeve (412); a driving rod (419) is fixedly connected to a surface of one side of the travel block (418); one end of the driving rod (419) is hinged to a symmetrically distributed swing rod (420) via a pin; one end of the swing rod (420) is hinged to a support (421) via a pin; and a sliding block (422) is fixedly connected to a surface of one side of the support (421).

7. The surface treatment device for valve metal parts according to claim 6, characterized in that: The inner walls of the two sliding blocks (422) are slidably sleeved with sliding rods (423), both ends of the sliding rods (423) are fixedly connected to the inner wall of the inner support sleeve (412), the outer surface of the sliding rod (423) is movably sleeved with a contraction spring (424), both ends of the contraction spring (424) are respectively fixedly connected to the opposite surfaces of the two sliding blocks (422), one end of the inner support block (425) is in an arc shape, and the other end of the inner support block (425) is fixedly connected to one side surface of the sliding block (422).

8. A surface treatment process for valve metal parts, using the treatment device described in any one of claims 1 to 7, characterized in that: include: S1: Select brass as the main material, turn the valve and make holes on the lathe; S2: The valve is cleaned after sand throwing and then nickel plated after being soaked in phosphoric acid solution for one minute; S3: placing the valve on the material conveying platform (2), and the valve is conveyed by the material conveying platform (2) to between two hole spacing adjustment inner support mechanisms; S4: The piston rod of the first servo electric cylinder (33) extends and drives the lifting block (32) to move upward through the cooperation of the guide rod (31). The upward movement of the lifting block (32) drives the adjustment disk (4) to move upward through the limit rod (36), so that the adjustment disk (4) and the center height of the valve can be adjusted and positioned according to the size of different valves; S5: The second servo motor (47) drives the second gear (49) to rotate via the second rotating shaft (48), and the rotation of the second gear (49) drives the driving plate (43) to rotate via the meshing outer gear ring (45). The rotation of the driving plate (43) enables the inner support sleeve (412) to move and adjust via the cooperation of the limiting sliding groove (410) and the limiting sliding block (411) through the cooperation of the driving groove (44), so that the inner support sleeve (412) moves to match the opening position on the valve; S6: The piston rod of the second servo electric cylinder (35) moves outward, and drives the adjustment disk (4) to move through the limit rod (36). The relative movement of the two adjustment disks (4) drives the inner support sleeve (412) to be inserted into the hole of the valve. Then, the piston rod of the third servo electric cylinder (415) moves back, and drives the driving rod (419) to move through the cooperation of the moving disk (416), the telescopic rod (417) and the travel block (418). The movement of the driving rod (419) drives the sliding block (422) to drive the inner support block (425) to move through the cooperation of the swing rod (420) and the support (421). The movement of the inner support block (425) causes it to pass through the through groove (413) and fit and support the inner wall of the valve hole. S7: The first servo motor (311) drives the first gear (313) to rotate via the first rotating shaft (312), and the rotation of the first gear (313) drives the limiting rod (36) to rotate via the meshing driven gear (310), and the driven gear (310) is positioned and rotated via the cooperation of the annular positioning groove (38) and the arc-shaped slider (39), and the rotation of the limiting rod (36) drives the valve to rotate via the cooperation of the adjusting disk (4) and the inner supporting sleeve (412), and at this time, the extension of the piston rod of the hydraulic cylinder (6) drives the polishing block (7) to move downward, and the polishing block (7) contacts the rotating valve to perform polishing; S8: After polishing is completed, the first servo motor (311) stops working, and at the same time, the piston rod of the third servo electric cylinder (415) extends, thereby driving the inner support block (425) to reset and retract through the elastic force of the contraction spring (424). Finally, the piston rod of the second servo electric cylinder (35) retracts, and the inner support sleeve (412) is separated from the hole of the valve through the reset movement of the limit rod (36) and the adjustment disk (4). At this time, the valve is placed above the material conveying table (2) and sent to the next process.

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