CN111660063B - Valve element machining process and equipment - Google Patents

Valve element machining process and equipment Download PDF

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Publication number
CN111660063B
CN111660063B CN202010399060.0A CN202010399060A CN111660063B CN 111660063 B CN111660063 B CN 111660063B CN 202010399060 A CN202010399060 A CN 202010399060A CN 111660063 B CN111660063 B CN 111660063B
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detection
block
valve core
movable
gear
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CN111660063A (en
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周碧英
周荣军
陈忠海
周锡明
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Ningbo Saifu Technology Co ltd
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Ningbo Saifu Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/001Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings

Abstract

The invention relates to a valve core processing technology and equipment thereof, comprising the following steps: s1, red heading; s2, rough turning; s3, finish turning; s4, drilling; s5, edge milling; s6, deburring; s7, heat treatment; s8, surface treatment; s9, grinding the outer circle; s10, inspecting a finished product; s11, oiling; and S12, packaging. The problem of the size is solved because the precision of the excircle grinding is related to the sealing performance of the valve core, a worker can perform plating before the excircle grinding, and can also polish the plating after the excircle grinding, the size of the valve core is directly measured through a vernier caliper at the moment, and the plating can perform chemical reaction, so that the size is not affected.

Description

Valve element machining process and equipment
Technical Field
The invention relates to the technical field of valve core processing, in particular to a valve core processing technology and equipment thereof.
Background
A valve element is a valve part by means of which the valve body performs the basic function of direction control, pressure control or flow control by means of its movement.
In the prior art, for example, chinese patent No. CN105563046B, relates to a mechanical manufacturing process, and in particular relates to a manufacturing and material processing process of a valve core of an electromagnetic valve. A machining process of a precision electromagnetic valve core comprises the following steps: blanking, I-time forging and pressing, II-time forging and pressing, III-time forging and pressing, extrusion deburring, thermal refining, milling, drilling, reaming, extrusion, turning, grinding and surface grinding.
The above prior art solutions have the following drawbacks: the precision of external grinding closes the leakproofness of case, and the staff can carry out the cladding material before the external grinding, and can also polish the cladding material after the external grinding, directly measure the size of case through slide caliper this moment, and the chemical reaction can take place for the cladding material this moment to lead to size to go wrong, there is the space of improvement in addition.
Disclosure of Invention
The invention aims to provide a valve core processing technology, which has the characteristics of improving the quality of a valve core, improving the overall stability of the valve core and reducing the size deviation.
The above object of the present invention is achieved by the following technical solutions:
a valve core machining process comprises the following steps:
s1, red heading: taking out the raw materials, heating the raw materials, and punching the raw materials by a punch press to process a valve core blank;
s2, rough turning: processing the punched valve core blank by a lathe to cut redundant materials on the surface of the valve core blank, primarily processing according to a product drawing, and soaking in anti-rust water;
s3, finish turning: machining the valve core blank by a lathe according to the drawing size of a product so as to further machine the valve core blank to obtain the appearance of the valve core, and soaking in anti-rust water;
s4, drilling: machining a middle communicating hole of the valve core through a lathe according to the drawing size of a product to form the valve core, and soaking in anti-rust water;
s5, edge milling: processing the section of the valve core blank to form a flat, smooth and clean surface, and soaking in anti-rust water;
s6, deburring: removing peripheral burrs by using a scraper or a file, and soaking in anti-rust water;
s7, heat treatment: heating the valve core;
s8, surface treatment: plating blue-white trivalent chromium on the valve core in a hanging manner;
s9, external grinding: grinding the valve core by a grinding machine, and spraying white oil while grinding;
s10, finished product inspection: inspecting the appearance and the size of the valve core;
s11, oiling: spraying grease on the valve core;
s12, packaging: and (5) sealing and packaging the oiled valve core.
Through adopting above-mentioned technical scheme, the valve core blank is processed earlier out with red-heading technology, thereby holistic machining efficiency has been improved, thereby the rethread rough turning, the finish turning, thereby change the hole and further process the valve core, thereby mill limit and burring improve holistic smoothness, further strengthening is carried out with overall structure to the thermal treatment, surface treatment has improved holistic quality, at last through grinding the excircle, thereby it improves the valve core quality to spray white oil, improve valve core overall stability, reduce size deviation, the finished product inspection will improve holistic product quality, package after oiling, antirust capacity is improved.
The present invention in a preferred example may be further configured to: the heat treatment comprises the following steps:
s700, stress relief heat treatment: heating in sections, wherein the first section heating temperature is 300 ℃, keeping the temperature for 1.5h after reaching the temperature, the second section heating temperature is 450 ℃, keeping the temperature for 45min after reaching the temperature, the third section heating temperature is 650 ℃, keeping the temperature for 30min after reaching the temperature, cooling to room temperature by adopting the combination of air cooling and air cooling, cooling to 320 ℃ at the speed of 6 ℃/s by air cooling, and cooling to room temperature after the distance from an air outlet to a valve core is 30-300 mm;
s701, primary quenching: placing the valve core in a quenching furnace, heating to 750 ℃, preserving heat for 3h, immersing the valve core in quenching oil after quenching and heating are finished, keeping the temperature of the quenching oil at 60 ℃ for 45min, then cooling to room temperature, and cleaning and drying;
s702, secondary quenching: placing the valve core in a quenching furnace again for secondary quenching and heating treatment, wherein the quenching heat preservation temperature is 650 ℃, the heat preservation time is 2 hours, immersing the valve core into quenching oil after the quenching and heating are finished, keeping the temperature of the quenching oil at 80 ℃ for 50min, then cooling to room temperature, cleaning and drying;
s703 and tempering: placing the valve core in a tempering furnace, heating to 400 ℃, preserving heat for 30min, then continuously heating to 600 ℃, preserving heat for 60min, and cooling to room temperature;
s704, surface strengthening heat treatment: the heat treatment temperature is 750 ℃, the temperature is kept for 5min after reaching the temperature, then water cooling and air cooling are combined, the blade is firstly cooled to 400 ℃ by water cooling at the cooling rate of 6 ℃/s, then cooled to 300 ℃ by air cooling at the cooling rate of 6 ℃/s, and then cooled to the room temperature by water cooling at the cooling rate of 3 ℃/s;
and S705, spraying the coating to the surface of the valve core needing to be treated at a high speed through an air compressor.
By adopting the technical scheme, impurities in the valve element are further removed by primary quenching, the stability of the valve element is further improved by secondary quenching, the overall quality of the valve element is improved, the surface performance of the valve element is improved by the treatment of tempering and surface strengthening heat treatment processes, and the overall oxidation is reduced by spraying of the coating.
The present invention in a preferred example may be further configured to: the outer circle grinding comprises:
s900, primary polishing: fixing the valve core through a clamp, rotating the valve core at 660r/min, polishing a grinding disc on a grinding machine at 800r/min, spraying white oil once at intervals of 2s, and keeping the polishing time for 5 min;
s901, secondary grinding: the clamp rotates the valve core at 800r/min, the grinding disc on the grinding machine grinds at 1200r/min, and white oil is continuously sprayed until finishing grinding.
Through adopting above-mentioned technical scheme, when grinding the excircle, polish through twice alone to improve holistic size precision, the injection of white oil can the reduce temperature simultaneously, and also can improve surperficial corrosion-resistant ability, and anti-oxidant, the practicality is strong.
The second aim of the invention is realized by the following technical scheme:
a valve core processing device comprises a rack, wherein a grinding machine used for cylindrical grinding of a valve core is arranged on the rack, and an electric linear slide rail used for moving the grinding machine is arranged on the rack;
the rack is provided with a sliding plate, the sliding plate is symmetrically provided with rotary clamping components, the rack is also provided with a sliding block for driving the rotary clamping components to slide, one side of the rotary clamping components, which is close to the rack, is also provided with a threaded block, the rack is provided with a threaded rod penetrating through the threaded block, two sides of the threaded rod are provided with bases, and the rack is also provided with a first motor for driving the threaded rod to rotate;
a connecting seat is further arranged on the sliding plate and between the rotary clamping components, a clamping hook for fixing the sliding plate is integrally arranged on the connecting seat, one side of the connecting seat, which is far away from the clamping hook, is connected with a movable buckle through a bolt, an insertion block is arranged on the movable buckle, and an insertion groove for the insertion block to be inserted is arranged on the connecting seat;
the grinding machine grinding disc fixing device is characterized in that a double-rod cylinder is arranged on the connecting seat, the telescopic direction of the double-rod cylinder is consistent with the pushing direction of a grinding disc on the grinding machine, a lock catch used for fixing the double-rod cylinder is arranged on the connecting seat, and a placing groove for placing the double-rod cylinder is formed in the lock catch;
the double-rod air cylinder is characterized in that a piston rod of the double-rod air cylinder is provided with a mounting seat for mounting a detection assembly, and the connecting seat is further provided with a detection assembly for detecting the size of the valve core.
Through adopting the above-mentioned technical scheme, thereby through the seesaw of electronic linear slide rail control grinding machine, with the degree of polishing and the degree of depth of polishing of control grinding machine to the case, rotary clamping subassembly on the slide plate fixes the case, the rotation of case carries out in step, improve holistic machining efficiency, and slide rail cooperation threaded rod, the thread piece, base and first motor, thereby control rotary clamping subassembly's the tight elasticity of clamp, control is convenient, connecting seat cooperation buckle and activity are buckled, thereby adjust the position, it is more convenient to make the regulation, it is fixed mutually to insert piece and insertion groove, improve the overall stability, the double-rod cylinder drives the determine module and moves, and through hasp and standing groove, in order to fix the double-rod cylinder, the mount pad supplies to add the determine module and installs, therefore, the clothes hanger is strong in practicability.
The present invention in a preferred example may be further configured to: the rotary clamping assembly comprises:
the mounting cover is arranged on the sliding plate and is fixedly connected with the thread block;
the mounting plate is fixedly connected with the mounting plate;
the pushing cylinder is arranged on the mounting plate;
the connecting bearing is fixed between the piston rod and the ejector pin so as to control the ejector pin and the piston rod of the pushing cylinder to move synchronously;
the thimble penetrates through the mounting plate and is used for fixing the valve core;
the second motor is arranged on the mounting plate and used for driving the speed stabilizing assembly;
the first brackets are symmetrically arranged on the mounting plate and used for the second motor to penetrate and be clamped and embedded,
and the speed stabilizing assembly is arranged on the mounting plate and is mutually matched with the second motor to drive the thimble to rotate.
Through adopting above-mentioned technical scheme, the installation lid is mutually supported with the mounting panel to install other parts, and promote the cylinder and be connected through connecting bearing with the thimble, thereby when control connection bearing promoted, also can realize synchronous rotation, the second motor is installed on first support, and will control the thimble through steady fast subassembly and rotate, the practicality is strong.
The present invention in a preferred example may be further configured to: the speed stabilizing assembly comprises:
the third bracket is arranged on the mounting plate and is in interference fit with the turbine;
the worm is fixedly connected to an output shaft of the second motor;
the second bracket is arranged on the mounting plate and fixedly penetrated with the worm so as to enable the worm to rotate;
a turbine intermeshed with the turbine;
the planetary gear set is arranged in the turbine and is meshed with the turbine to rotate;
a sun gear disposed at the center of gravity of the mounting member and meshed with the planetary gear set;
the mounting piece is used for sleeving the planetary gear set to rotate and mounting the sun gear;
a carrier cover cooperating with the third carrier to cover the planetary gear set, the sun gear and the mounting member;
the output shaft, the bracket cover and the sun gear are integrally arranged, and sequentially penetrate through the mounting piece and the third bracket;
the connecting gear is fixedly connected with the output shaft, synchronously rotates and is meshed with the gear groove;
the limiting strip is arranged on the third bracket, is used for limiting and fixing the bracket cover and is abutted against the bracket cover to rotate;
the thimble is provided with a gear groove which is meshed with the connecting gear, the length of the gear groove is consistent with the stroke of the pushing cylinder, and the third support is provided with a rotating groove for mounting the mounting part.
Through adopting above-mentioned technical scheme, the third support is installed the turbine, the worm is installed on the second support, thereby improve holistic stability, reduce and vibrate, thereby the turbine cooperation worm realizes changing the direction of transmission, and planetary gear set, sun gear set, the installed part, the setting of support lid, thereby rotate with higher speed, cooperation spacing carries out holistic spacing, thereby improve holistic stability, and the output shaft, connect the setting of gear, will carry out the transmission of power, the setting of gear groove, thereby make the thimble realize advancing, therefore, the clothes hanger is strong in practicability.
The present invention in a preferred example may be further configured to: the detection assembly comprises:
the detection arms are symmetrically arranged on the detection cover and are used for detecting the valve core;
the detection rack is arranged on the detection arm and is fixedly slid on the detection cover;
the detection gear is fixed on the detection shell through a bolt and is meshed with the detection rack;
the direction changing gear is fixed on the detection shell through a bolt and is meshed with one detection gear;
the driving gear is meshed with the direction changing gear and meshed with the detection gear far away from the phase changing gear, so that the synchronous trend detection arms are close to each other or far away from each other;
the third motor is arranged on the detection shell and is used for controlling the driving gear to rotate;
the detection cover is fixedly connected with the detection shell;
the detection shell is arranged on the mounting seat;
the detection cover is provided with a movable groove for the movement of the detection arm, and the detection cover is provided with a sliding groove for the sliding of the detection rack.
Through adopting above-mentioned technical scheme, the detection arm is used for detecting the size of case, detects rack cooperation and detects gear, drive gear and change gear to the position that will detect the arm removes, and the third motor is responsible for driving drive gear, thereby improves holistic stability.
The present invention in a preferred example may be further configured to: the detection arm includes:
the movable arm is integrated with the detection rack and is matched with the movable groove;
the movable seat is arranged on one side of the movable arm, which is far away from the detection rack, and is abutted against the detection cover to slide;
the movable block is connected with the movable seat in a sliding manner;
the adjusting rod is rotatably connected to the movable seat and is fixedly rotated with the rotating seat;
the rotating seat is arranged on the movable seat and is in rotating fit with the adjusting rod;
the detection block is arranged on the movable block and is fixedly connected with the movable block through a bolt;
the detection arm is integrally arranged on one side of the detection block, which is far away from the adjusting rod;
the detection clamping piece is integrally arranged on one side of the detection arm, which is far away from the detection block, and is used for clamping and fixing the detection needle;
the detection needle is arranged on the detection clamping sheet and is used for abutting against the valve core;
the movable block is provided with a contact groove for installing the detection block, and the detection clamp is provided with a fixing groove for placing the detection needle;
the adjustable dovetail groove adjusting device is characterized in that a dovetail block is arranged on the movable seat, the adjusting rod penetrates and rotates on the dovetail block, a half groove for the adjusting rod to be installed and communicated with the outside is formed in the dovetail block, a dovetail groove for the dovetail block to be connected in a sliding mode is formed in the movable block, and a thread half groove which is matched with the adjusting rod in a threaded mode and communicated with the dovetail groove is formed in the movable block.
Through adopting above-mentioned technical scheme, the digging arm drives the sliding seat and moves, adjusts through adjusting the pole simultaneously between movable block and the sliding seat to change the position, and detect the piece and throw and detect the arm, detect the clamping piece, detect the needle, detect the case in step, the practicality is strong.
The present invention in a preferred example may be further configured to: a knob which is held by a person is also integrally arranged on the adjusting rod, an indicating piece is arranged on the movable block, and scales which are mutually indicated and matched with the indication are arranged on the movable seat;
still be provided with the clearance that is used for adjusting and the elasticity between the forked tail piece on the movable block, just adjust with control clearance size through the bolt between movable block and the forked tail piece.
Through adopting above-mentioned technical scheme, the setting of knob is conveniently adjusted, and indicator cooperation scale, and the position after the convenience is adjusted is looked over, and is more convenient, and the clearance fit bolt is adjusted to improve holistic elasticity, and also can play the effect that improves stability.
The present invention in a preferred example may be further configured to: still including setting up in the two cooling module of grinding machine, cooling module includes:
the cooling block is fixedly connected to the grinding machine;
the connecting pipe is arranged on the cooling block and is communicated with the outside so as to allow white oil to enter;
the switch is arranged on the connecting pipe and is used for opening and closing the connecting pipe;
the valves are arranged on one side of the cooling block, which is far away from the connecting pipe, and a plurality of valves are arranged and connect the bent pipes with the cooling block;
the folding pipe is used for outputting white oil;
the spray head is arranged on one side of the folding pipe away from the valve, and the ball is sleeved on the folding pipe.
Through adopting above-mentioned technical scheme, through the setting of cooling block to be connected the connecting pipe with roll over the pipe, and the switch on the connecting pipe is controlled intaking, and the valve on the cooling block is all controlled that opens and close to every roll over the pipe, thereby has improved holistic practicality, and the ball joint of shower nozzle makes the direction can be adjusted, and the practicality is strong.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the quality of the valve core is improved, the integral stability of the valve core is improved, and the size deviation is reduced;
2. the processing is more intelligent.
Drawings
Fig. 1 is a schematic structural view of a valve core processing apparatus.
Fig. 2 is a schematic view of the structure of the grinding machine and the cooling assembly.
FIG. 3 is a schematic view of the installation of the rotating clamp assembly.
Fig. 4 is a first schematic view of the installation of the speed stabilizing assembly, the ejector pin, the connecting bearing, the pushing cylinder, the second motor and the bracket.
Fig. 5 is a second schematic view of the installation of the speed stabilizing assembly, the ejector pin, the connecting bearing, the pushing cylinder, the second motor and the bracket.
Fig. 6 is an exploded view of the velocity stabilizing assembly.
Fig. 7 is an exploded view of the velocity stabilizing assembly.
Fig. 8 is a schematic view of the installation of the double rod cylinder.
Fig. 9 is a schematic view of the installation of the detection assembly.
Fig. 10 is a first exploded view of the detection arm.
Fig. 11 is an exploded view of the second detection arm.
In the figure, 1, a frame; 10. an electric linear slide rail; 11. a slide plate; 120. a slider; 121. a thread block; 122. a threaded rod; 123. a base; 124. a first motor; 2. grinding machine; 3. a rotating clamping assembly; 30. installing a cover; 31. mounting a plate; 32. a push cylinder; 33. connecting a bearing; 34. a thimble; 340. a gear groove; 35. a second motor; 36. a first bracket; 37. a speed stabilizing component; 3700. a third support; 3701. a worm; 3702. a second bracket; 3703. a turbine; 3704. a planetary gear set; 3705. a sun gear; 3706. a mounting member; 3707. a bracket cover; 3708. an output shaft; 3709. a connecting gear; 3710. a limiting strip; 3711. a rotating tank; 40. a connecting seat; 41. a hook; 42. a movable buckle; 43. inserting a block; 44. inserting the groove; 45. a double-rod cylinder; 46. locking; 47. a placement groove; 48. a mounting seat; 5. a detection component; 50. a detection arm; 500. a movable arm; 501. a movable seat; 5010. a dovetail block; 5011. a half groove; 5012. calibration; 502. a movable block; 5020. a contact groove; 5021. a dovetail groove; 5022. a threaded half-groove; 5023. an indicator; 5024. a gap; 503. adjusting a rod; 5030. a knob; 504. a rotating base; 505. a detection block; 506. a test strip; 507. detecting the clamping piece; 508. a detection pin; 509. fixing grooves; 51. detecting the rack; 52. detecting the gear; 53. a change gear; 54. a drive gear; 55. a third motor; 56. a detection cover; 560. a movable groove; 561. a chute; 57. detecting the shell; 6. a cooling assembly; 60. cooling the block; 61. a connecting pipe; 62. a switch; 63. a valve; 64. folding the tube; 65. and (4) a spray head.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The embodiment of the invention provides a valve core machining process which is characterized by comprising the following steps of:
s1, red heading: and taking out the raw materials, heating the raw materials, and punching the raw materials by a punch press to process a valve core blank.
In step S1, the raw material is purchased and is a cylindrical small piece of material, the small piece of material is heated, and the heated material is placed into a punch press for punching, so as to form a valve core blank.
S2, rough turning: and processing the punched valve core blank by a lathe to cut redundant materials on the surface of the valve core blank, primarily processing according to a product drawing, and soaking in anti-rust water.
In step S2, the punched valve core blank is fixed to a lathe and turned, so that the excess material on the surface of the valve core blank is removed and processed according to the drawing of the product, and after the processing is finished, the product is soaked in the anti-rust water.
S3, finish turning: and (4) machining the valve core blank by a lathe according to the drawing size of a product so as to further machine the valve core blank to obtain the appearance of the valve core, and soaking in anti-rust water.
In step S3, according to the product drawing, further turning is performed by a lathe, and the valve core blank is further processed, so that the shape of the valve core is accurately processed, and after the processing is completed, the valve core is soaked in the anti-rust water.
S4, drilling: and machining the middle communicating hole of the valve core through a lathe according to the drawing size of a product to form the valve core, and soaking in anti-rust water.
In step S4, holes are punched by a lathe according to the product drawing, whereby the intermediate communication hole of the valve element is processed to form the valve element, and after the punching is completed, immersion is performed by rust preventive water.
S5, edge milling: and treating the section of the valve core blank to form a flat, smooth and clean surface, and soaking in anti-rust water.
In step S5, the section of the valve core blank is processed to form a flat and clean surface, and after the processing is completed, the valve core blank is soaked in the rust preventive water.
S6, deburring: removing peripheral burrs by using a scraper or a file, and soaking in antirust water.
In step S6, the valve core is ground by a scraper or a file to remove burrs on the periphery, and after the machining is completed, is soaked by the rust preventive water.
S7, heat treatment: and heating the valve core.
In step S7, the valve body is heat-treated to improve the overall quality.
S8, surface treatment: and (4) rack plating blue-white trivalent chromium on the valve core.
In step S8, the valve element is rack-plated, and blue-white trivalent chromium is rack-plated to improve the overall quality.
S9, external grinding: the valve core is polished by the grinding machine 2, and white oil is sprayed while grinding.
In step S9, the valve body is subjected to grinding processing by the grinding machine 2, and white oil is injected while grinding, thereby performing temperature reduction and the indicated processing.
S10, finished product inspection: and (5) checking the appearance and the size of the valve core.
In step S10, the finished valve body is inspected for appearance and dimensions manually.
S11, oiling: and spraying grease on the valve core.
In step S11, the valve body is sprayed with grease to prevent rust.
S12, packaging: and (5) sealing and packaging the oiled valve core.
In step S12, the oiled valve core is packaged by plastic shrink-wrapping and wrapped by heating.
Wherein the heat treatment comprises the following steps:
s700, stress relief heat treatment: heating in sections, wherein the first section heating temperature is 300 ℃, keeping the temperature for 1.5h after reaching the temperature, the second section heating temperature is 450 ℃, keeping the temperature for 45min after reaching the temperature, the third section heating temperature is 650 ℃, keeping the temperature for 30min after reaching the temperature, cooling to room temperature by adopting the combination of air cooling and air cooling, cooling to 320 ℃ at the speed of 6 ℃/s by air cooling, and cooling to room temperature after the distance from an air outlet to a valve core is 30-300 mm;
s701, primary quenching: placing the valve core in a quenching furnace, heating to 750 ℃, preserving heat for 3h, immersing the valve core in quenching oil after quenching and heating are finished, keeping the temperature of the quenching oil at 60 ℃ for 45min, then cooling to room temperature, and cleaning and drying;
s702, secondary quenching: placing the valve core in a quenching furnace again for secondary quenching and heating treatment, wherein the quenching heat preservation temperature is 650 ℃, the heat preservation time is 2 hours, immersing the valve core into quenching oil after the quenching and heating are finished, keeping the temperature of the quenching oil at 80 ℃ for 50min, then cooling to room temperature, cleaning and drying;
s703 and tempering: placing the valve core in a tempering furnace, heating to 400 ℃, preserving heat for 30min, then continuously heating to 600 ℃, preserving heat for 60min, and cooling to room temperature;
s704, surface strengthening heat treatment: the heat treatment temperature is 750 ℃, the temperature is kept for 5min after reaching the temperature, then water cooling and air cooling are combined, the blade is firstly cooled to 400 ℃ by water cooling at the cooling rate of 6 ℃/s, then cooled to 300 ℃ by air cooling at the cooling rate of 6 ℃/s, and then cooled to the room temperature by water cooling at the cooling rate of 3 ℃/s;
and S705, spraying the coating to the surface of the valve core needing to be treated at a high speed through an air compressor.
Wherein, the excircle grinding comprises the following steps:
s900, primary polishing: fixing the valve core through a clamp, rotating the valve core at 660r/min, polishing a grinding disc on a grinding machine 2 at 800r/min, spraying white oil once at intervals of 2s, and keeping the polishing time of 5 min;
s901, secondary grinding: the clamp rotates the valve core at 800r/min, the grinding disc on the grinding machine 2 grinds at 1200r/min, and white oil is continuously sprayed until finishing grinding.
Referring to fig. 1, when an outer circle is ground, the valve core is fixed to the rotary clamping assembly 3 to be clamped and fixed, and rotates, the grinding machine 2 is matched to grind, the grinding direction of the grinding machine 2 and the rotation direction of the rotary clamping assembly 3 are set by a worker, the grinding direction and the rotation direction can be in-phase rotation or in reverse phase rotation, and the grinding state is controlled through different rotation directions and rotation speeds. After polishing, the outer diameter of the valve core is detected through a detection component 5 positioned between the two rotary clamping components 3, and the above devices are all installed on the frame 1.
Referring to fig. 2, a motor-driven linear slide 10 is arranged on the frame 1, the motor-driven linear slide 10 is fixed on the frame 1 through bolts, and the motor-driven linear slide 10 fixes the grinding machine 2, and the position of the grinding machine 2 is driven through electric power.
And a cooling assembly 6 is arranged above the grinding machine 2, the cooling assembly 6 cools and protects the surface of the valve core being ground, and the cooling assembly 6 comprises a cooling block 60, a connecting pipe 61, a switch 62, a valve 63, a folding pipe 64 and a spray head 65.
The cooling block 60 is fixedly connected to the grinding machine 2 through a bolt, a connecting pipe 61 is installed on one side, away from the machining, of the cooling block 60, the connecting pipe 61 is communicated with the outside, white oil is supplied, a switch 62 is further arranged on the connecting pipe 61, and the switch 62 is rotated to open and close a passage of the connecting pipe 61. In this embodiment, the switch 62 may be an electrically controlled electromagnetic switch 62, or may be a manual butterfly valve, and may be selected by a worker according to actual conditions.
The side of the cooling block 60 far from the connecting pipe 61 is provided with a valve 63, and the valve 63 can be set as an electrically controlled electromagnetic switch 62 or a manual butterfly valve, and can be selected by a worker according to actual conditions. And the valve 63 is also provided with a folding pipe 64 for outputting the white oil, and the valve 63 is positioned between the folding pipe 64 and the cooling block 60. The folding pipe 64 can adjust the direction under the state of external force, so that the white oil is output in different directions, and the folding pipe 64 and the valve 63 are provided in a plurality, so that the adjustment is convenient. The side of the bellows 64 remote from the valve 63 is also ball-jointed with a spray head 65. The spray head 65 may be rotated to further adjust the direction of the spray.
Referring to fig. 3, the rotary clamping assembly 3 is provided in two sets, which are identical in structure and operation, and one of the sets is disclosed as an example.
The frame 1 is fixed with the slide plate 11 through the bolt, and the slide plate 11 is the symmetry setting to all be provided with a set ofly under every rotary clamping subassembly 3. The sliding block 120 is further connected to the sliding plate 11 in a sliding manner, the sliding block 120 is fixedly connected to the rotary clamping component 3, and the fixing manner may be welding or detachable manner such as bolts, which belongs to the common knowledge of those skilled in the art and is not described herein again.
Be located still to be provided with base 123 between the slide plate 11, the last rotation of base 123 is connected with threaded rod 122, base 123 is located the both ends of threaded rod 122, threaded rod 122 rotates on base 123, in order to improve holistic stability, also can connect through the bearing, screw-thread fit has screw block 121 on the threaded rod 122, screw block 121 and rotary clamping component 3 are fixed, and be located between frame 1 and the rotary clamping component 3, still be provided with in frame 1 and be used for driving threaded rod 122 pivoted first motor 124.
Referring to fig. 3 and 4, the rotary clamping assembly 3 includes a mounting cover 30, a mounting plate 31, a pushing cylinder 32, a connecting bearing 33, a thimble 34, a second motor 35, a first bracket 36, and a speed stabilizing assembly 37.
The mounting cover 30 and the mounting plate 31 are fixed by bolts, and the mounting cover 30 is fixed to the slider 120 and the screw block 121. A circuit board for driving control is provided in the mounting cover 30, and a chip having a program for detection is provided in the circuit board, so that the rotation speed and the pressing force are controlled.
The cover is equipped with first support 36 on the second motor 35, and first support 36 is provided with two to wear to establish the inlay card with second motor 35, and first support 36 fixes through bolt and mounting panel 31. The pushing cylinder 32 is higher than the inner side of the mounting plate 31, a connecting bearing 33 is arranged on a piston rod of the pushing cylinder 32, the connecting bearing 33 is fixed with the ejector pin 34, that is, the ejector pin 34 is fixed with the piston rod of the pushing cylinder 32 through the connecting bearing 33, so that pushing, jacking and rotation are realized.
The thimble 34 penetrates through the mounting plate 31, and a speed stabilizing assembly 37 is further disposed on the mounting plate 31, the speed stabilizing assembly 37 is used for connecting the second motor 35 with the thimble 34, so as to control the rotation of the thimble 34 through the rotation of the second motor 35.
Referring to fig. 4 and 5, the speed stabilizing assembly 37 includes a third carrier 3700, a worm 3701, a second carrier 3702, a turbine 3703, a planetary gear set 3704, a sun gear 3705, a mounting member 3706, a carrier cover 3707, an output shaft 3708, a connecting gear 3709, and a stopper 3710.
A worm 3701 is fixed to an output shaft 3708 of the second motor 35, and the worm 3701 may be welded to the output shaft 3708 of the second motor 35 or may be fixed to the output shaft 3708 of the second motor 35 by a bolt inserted through the worm 3701. A second support 3702 is fixed on the mounting plate 31 by bolts, and the second support 3702 is engaged with the worm 3701 in a penetrating manner, so as to support the worm 3701 and allow the worm 3701 to rotate in the second support 3702.
Referring to fig. 6 and 7, a third carrier 3700 is further fixed to the mounting plate 31 by bolts, a mounting member 3706 is further provided on the third carrier 3700, a rotating groove 3711 for rotation of the mounting member 3706 is further provided on the third carrier 3700, the mounting member 3706 is provided in a disc shape, a planetary gear set 3704 is further sleeved on the mounting member 3706, and the planetary gear set 3704 is composed of three planetary gears. The planetary gear rotates on its own axis on the mount 3706.
Also interference fitted on the third carrier 3700 is a turbine 3703, the turbine 3703 and the planetary gear set 3704 are engaged with each other, and the turbine 3703 wraps the planetary gear set 3704. Also provided on the turbine 3703 is a sun gear 3705, which 3705 is engaged with the planetary gear set 3704, and the sun gear 3705 is located between the three planetary gear sets 3704, thereby functioning as a transmission. In this embodiment, helical teeth may be used between the turbine 3703, the sun gear 3705, and the planetary gear set 3704 to improve overall stability and torque, and straight teeth may be used. And a sun gear 3705 is provided on the center of gravity of the mount 3706.
An output shaft 3708 is integrally provided on the sun gear 3705, and a carrier cover 3707 and a coupling gear 3709 are also integrally provided on the output shaft 3708. The connecting gear 3709, the carrier cover 3707, and the sun gear 3705 on the output shaft 3708 are positioned on the same axis and arranged in a line, and the output shaft 3708 is inserted through the center of the mounting member 3706 and the third carrier 3700. A carrier cover 3707 is used to cover the planetary gear set 3704, the sun gear 3705, and the mount 3706.
The third bracket 3700 is fixed with a limiting bar 3710 by bolts, the limiting bar 3710 is used for limiting and fixing the bracket cover 3707 and is abutted against the bracket cover 3707 to rotate, so that the turbine 3703 is fixed between the third bracket 3700 and the bracket cover 3707, and if necessary, a ball may be ball-jointed to the limiting bar 3710 to reduce friction between the limiting bar 3710 and the bracket cover 3707.
Referring to fig. 5 and 6, the connecting gear 3709 is engaged with the gear groove 340 of the thimble 34, and the length of the gear groove 340 is identical to the stroke of the push cylinder 32, thereby being movable.
Referring to fig. 8, a connecting seat 40 is further disposed on the sliding plate 11 and between the rotating clamping assemblies 3, the sliding plate 11 is disposed in an i-shape, and two sliding plates 11 are disposed. The connecting base 40 is integrally provided with a hook 41 for fixing the sliding plate 11, one side of the connecting base 40 far away from the hook 41 is connected with a movable buckle 42 through a bolt, the movable buckle 42 is provided with an inserting block 43, the connecting base 40 is provided with an inserting groove 44 for inserting the inserting block 43, and the connecting base 40 and the movable buckle 42 are mutually fixed through the bolt so as to be fixed on the sliding plate 11.
A double-rod cylinder 45 is arranged on the connecting seat 40, and the telescopic direction of the double-rod cylinder 45 is consistent with the pushing direction of the upper grinding disc of the grinding machine 2. The connecting base 40 is symmetrically provided with a latch 46 for fixing the double-rod cylinder 45, and the latch 46 is provided with a placing groove 47 for fixing the folding angle of the double-rod cylinder 45.
The piston rod of the double-rod cylinder 45 is also fixed with an installation seat 48 for installing the detection assembly 5, and the installation seat 48 is locked with the detection assembly 5 for detecting the size of the valve core through a bolt.
Referring to fig. 9, the sensing assembly 5 includes a sensing arm 50, a sensing rack 51, a sensing gear 52, a direction-changing gear 53, a driving gear 54, a third motor 55, a sensing cover 56, and a sensing case 57.
The detection cover 56 and the detection shell 57 are fixed by bolts, a circuit board for detection is arranged in the detection shell 57, a chip is arranged in the circuit board, and a program for detection is arranged in the chip, so that the valve element is detected.
The detection cover 56 is provided with a detection rack 51 at a side close to the detection shell 57, and the detection rack 51 is fixedly connected with the detection arm 50, so that the detection arm 50 is controlled to detect the valve core. A third motor 55 is fixed to the detection case 57 by a bolt, and a drive gear 54 is fixed to an output shaft 3708 of the third motor 55.
The detection shell 57 is further fixed with a detection gear 52 and a direction change gear 53, the detection gear 52 and the direction change gear 53 are fixed through a shaft and rotate on the shaft, the detection gear 52 and the direction change gear 53 are meshed with the driving gear 54, and the two detection gears 52 are arranged and drive the two racks to synchronously open and close.
Referring to fig. 10 and 11, the detection cover 56 is provided with a movable groove 560 for moving the detection arm 50, and the detection cover 56 is provided with a slide groove 561 for sliding the detection rack 51. The detection arm 50 includes a movable arm 500, a movable seat 501, a movable block 502, an adjustment rod 503, a rotary seat 504, a detection block 505, a detection strip 506, a detection clip 507, and a detection pin 508.
Wherein, the movable arm 500 and the detecting rack 51 are integrally disposed and cooperate with the movable groove 560, and the movable seat 501 is disposed on a side of the movable arm 500 away from the detecting rack 51, and the movable seat 501 and the detecting cover 56 are abutted and slid. The movable arm 500 and the movable seat 501 are fixed by bolts, and a sinking groove for installing bolts is further formed in the movable seat 501.
The movable block 502 and the movable seat 501 are connected in a sliding mode, a dovetail block 5010 is integrally arranged on the movable seat 501, and a dovetail groove 5021 for the dovetail block 5010 to be connected in a sliding mode is arranged on the movable block 502. The movable base 501 is integrally provided with a rotary base 504, and the rotary base 504 and the adjusting rod 503 are rotatably connected with each other and fixed by a bearing if necessary. The adjusting rod 503 is rotatably inserted into the dovetail block 5010, and the dovetail block 5010 is provided with a half slot 5011 for the adjusting rod 503 to be mounted and to communicate with the outside, so that the adjusting rod 503 and the bolt do not contact with each other.
The movable block 502 is further provided with a threaded half groove 5022 which is in threaded fit with the adjusting rod 503 and is communicated with the dovetail groove 5021, the movable block 502 is further provided with a gap 5024 which is used for adjusting tightness between the movable block 502 and the dovetail block 5010, and the movable block 502 and the dovetail block 5010 are adjusted through bolts to control the size of the gap 5024, so that the clamping degree is controlled.
A knob 5030 for holding by a person is further integrally arranged on the adjusting rod 503, an indicator 5023 is arranged on the movable block 502, and a scale 5012 which is matched with the indicator in an indicating way is arranged on the movable seat 501, so that the adjusted position can be controlled and checked.
The movable block 502 is provided with the detection block 505, and is provided with the conflict groove 5020 that supplies to detect the installation of block 505 on the movable block 502 to realize mutual spacing, and fix the movable block 502 and detect the block 505 through the bolt. The side of the detection block 505 far away from the movable block 502 is integrally provided with a detection strip 506.
One side of keeping away from movable block 502 on the detection strip 506 an organic whole is provided with the detection clamping piece 507 that is used for the fixed detection needle 508 of centre gripping, is provided with the detection needle 508 that is used for contradicting the detection with the case on the detection clamping piece 507. And add and be provided with the fixed slot 509 that supplies detection needle 508 to place on surveying the clamping piece, be provided with the bolt on surveying the clamping piece 507, through the elasticity of bolt to adjust and detect the tight degree of clamp of needle 508.

Claims (5)

1. The valve core machining equipment comprises a rack (1) and is characterized in that a grinding machine (2) for cylindrical grinding of a valve core is arranged on the rack (1), and an electric linear slide rail (10) for moving the grinding machine (2) is arranged on the rack (1);
the clamping device is characterized in that a sliding plate (11) is arranged on the rack (1), rotary clamping components (3) are symmetrically arranged on the sliding plate (11), a sliding block (120) for driving the rotary clamping components (3) to slide is further arranged on the rack (1), a threaded block (121) is further arranged on one side, close to the rack (1), of each rotary clamping component (3), a threaded rod (122) penetrating through the threaded block (121) is arranged on the rack (1), bases (123) are arranged on two sides of each threaded rod (122), and a first motor (124) for driving the threaded rod (122) to rotate is further arranged on the rack (1);
a connecting seat (40) is further arranged on the sliding plate (11) and between the rotary clamping components (3), a clamping hook (41) for fixing the sliding plate (11) is integrally arranged on the connecting seat (40), one side, far away from the clamping hook (41), of the connecting seat (40) is connected with a movable buckle (42) through a bolt, an inserting block (43) is arranged on the movable buckle (42), and an inserting groove (44) for inserting the inserting block (43) is formed in the connecting seat (40);
a double-rod cylinder (45) is arranged on the connecting seat (40), the telescopic direction of the double-rod cylinder (45) is consistent with the pushing direction of an upper grinding disc of the grinding machine (2), a lock catch (46) used for fixing the double-rod cylinder (45) is arranged on the connecting seat (40), and a placing groove (47) for placing the double-rod cylinder (45) is formed in the lock catch (46);
a piston rod of the double-rod cylinder (45) is provided with an installation seat (48) for installing a detection assembly (5), and the connection seat (40) is also provided with a detection assembly (5) for detecting the size of the valve core;
the detection assembly (5) comprises:
the detection arms (50) are symmetrically arranged on the detection cover (56) and are used for detecting the valve core;
the detection rack (51) is arranged on the detection arm (50) and is fixedly slid on the detection cover (56);
a detection gear (52) fixed to the detection housing (57) by a bolt and meshed with the detection rack (51);
a direction-changing gear (53) fixed to the detection case (57) by a bolt and meshed with one of the detection gears (52);
a drive gear (54) which is engaged with the direction changing gear (53) and engaged with the detection gear (52) apart from the direction changing gear to move the trend detecting arms (50) toward or away from each other in synchronization;
a third motor (55) which is arranged on the detection shell (57) and is used for controlling the rotation of the driving gear (54);
a detection cover (56) fixedly connected with the detection shell (57);
a detection case (57) provided on the mounting base (48);
a movable groove (560) for the movement of the detection arm (50) is arranged on the detection cover (56), and a sliding groove (561) for the sliding of the detection rack (51) is arranged on the detection cover (56);
the detection arm (50) comprises:
a movable arm (500) integrally provided with the detection rack (51) and engaged with the movable groove (560);
the movable seat (501) is arranged on one side of the movable arm (500) far away from the detection rack (51), and is abutted against the detection cover (56) to slide;
the movable block (502) is connected with the movable seat (501) in a sliding manner;
the adjusting rod (503) is rotatably connected to the movable seat (501) and is fixedly rotated with the rotating seat (504);
the rotating seat (504) is arranged on the movable seat (501) and is in rotating fit with the adjusting rod (503);
the detection block (505) is arranged on the movable block (502) and is fixedly connected with the movable block through a bolt;
the detection strip (506) is integrally arranged on one side of the detection block (505) far away from the adjusting rod (503);
the detection clamping piece (507) is integrally arranged on one side of the detection strip (506) far away from the detection block (505) and is used for clamping and fixing the detection pin (508);
the detection needle (508) is arranged on the detection clamping piece (507) and is used for abutting against the valve core;
the movable block (502) is provided with an abutting groove (5020) for installing the detection block (505), and the detection clamping piece (507) is provided with a fixing groove (509) for placing the detection needle (508);
be provided with dovetail block (5010) on movable seat (501), adjust pole (503) and wear to establish rotation on dovetail block (5010), just be provided with half slot (5011) that supplies adjusting lever (503) installation and communicate mutually with the external world on dovetail block (5010), be provided with dovetail (5021) that supplies dovetail block (5010) to slide and connect on movable block (502), still be provided with on movable block (502) and adjust pole (503) screw-thread fit and with half slot (5022) of screw thread that dovetail (5021) communicate mutually.
2. A valve core machining apparatus according to claim 1, characterized in that the rotary clamping assembly (3) comprises:
the mounting cover (30) is arranged on the sliding plate (11) and is fixedly connected with the thread block (121);
the mounting plate (31) is fixedly connected with the mounting cover (30);
a pushing cylinder (32) arranged on the mounting plate (31);
the connecting bearing (33) is fixed between the piston rod and the ejector pin (34) so as to control the ejector pin (34) and the piston rod of the pushing cylinder (32) to move synchronously;
the thimble (34) is arranged in the mounting plate (31) in a penetrating way and used for fixing the valve core;
the second motor (35) is arranged on the mounting plate (31) and is used for driving the speed stabilizing assembly (37);
the first brackets (36) are symmetrically arranged on the mounting plate (31) and used for the second motor (35) to penetrate and be clamped and embedded,
and the speed stabilizing component (37) is arranged on the mounting plate (31) and is mutually matched with the second motor (35) to drive the thimble (34) to rotate.
3. A valve core machining apparatus according to claim 2, characterized in that the speed stabilizing assembly (37) comprises:
the third bracket (3700) is arranged on the mounting plate (31) and is in interference fit with the worm wheel (3703);
a worm (3701) fixedly connected to an output shaft (3708) of the second motor (35);
the second bracket (3702) is arranged on the mounting plate (31) and is fixedly penetrated with the worm (3701) so as to enable the worm (3701) to rotate;
a worm wheel (3703) intermeshed with the worm (3701);
a planetary gear set (3704) provided in the worm wheel (3703) and rotating in mesh with the worm wheel (3703);
a sun gear (3705) provided at the center of gravity of the mounting member (3706) and engaged with the planetary gear set (3704);
the mounting piece (3706) is used for sleeving and rotating the planetary gear set (3704) and mounting the sun gear (3705);
a carrier cover (3707) cooperating with the third carrier (3700) to cover the planetary gear set (3704), the sun gear (3705), and the mounting member (3706);
an output shaft (3708) that is provided integrally with the bracket cover (3707) and the sun gear (3705), and that is inserted through the mounting member (3706) and the third bracket (3700) in this order;
a connecting gear (3709) which is fixedly connected to the output shaft (3708) and rotates synchronously, and is engaged with the gear groove (340);
the limiting strip (3710) is arranged on the third support (3700), is used for limiting and fixing the support cover (3707), and is abutted against the support cover (3707) to rotate;
the thimble (34) is provided with a gear groove (340) which is meshed with the connecting gear (3709), the length of the gear groove (340) is consistent with the stroke of the pushing cylinder (32), and the third bracket (3700) is provided with a rotating groove (3711) for mounting the mounting part (3706).
4. The valve core processing equipment according to claim 1, wherein a knob (5030) for being held by a person is further integrally arranged on the adjusting rod (503), an indicating piece (5023) is arranged on the movable block (502), and scales (5012) which are mutually matched with the indicating piece (5023) in an indicating way are arranged on the movable seat (501);
the movable block (502) is further provided with a gap (5024) used for adjusting tightness between the movable block and the dovetail block (5010), and the movable block (502) and the dovetail block (5010) are adjusted through bolts to control the size of the gap (5024).
5. A valve core machining apparatus according to claim 1, further comprising a cooling assembly (6) provided on the grinding machine (2), the cooling assembly (6) comprising:
the cooling block (60) is fixedly connected to the grinding machine (2);
a connecting pipe (61) which is arranged on the cooling block (60) and is communicated with the outside so as to lead in white oil;
a switch (62) which is arranged on the connecting pipe (61) and is used for opening and closing the connecting pipe (61);
the valves (63) are arranged on one side of the cooling block (60) far away from the connecting pipe (61), and a plurality of valves are arranged and connect the bent pipes (64) with the cooling block (60);
the folding pipe (64) is used for outputting white oil;
the spray head (65) is arranged on one side of the folding pipe (64) far away from the valve (63), and the sleeve ball is connected to the folding pipe (64).
CN202010399060.0A 2020-05-12 2020-05-12 Valve element machining process and equipment Active CN111660063B (en)

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Application Number Priority Date Filing Date Title
CN202010399060.0A CN111660063B (en) 2020-05-12 2020-05-12 Valve element machining process and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010399060.0A CN111660063B (en) 2020-05-12 2020-05-12 Valve element machining process and equipment

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CN111660063B true CN111660063B (en) 2022-02-11

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009214276A (en) * 2008-03-12 2009-09-24 Nisshin Seisakusho:Kk Cylindrical grinding machine and cylindrical grinding method thereof
CN107916324A (en) * 2017-11-14 2018-04-17 张剑 A kind of valve spool of valve processing technology
CN108515312A (en) * 2018-03-06 2018-09-11 哈尔滨汽轮机厂有限责任公司 A kind of processing method of regulating valve valve disc
CN208913717U (en) * 2018-09-10 2019-05-31 深圳市银泰联五金机械有限公司 A kind of multi-axis linkage numerical control cylindrical grinder grinding device
CN209125478U (en) * 2018-11-28 2019-07-19 常州市鑫愉宝传动部件有限公司 A kind of automation cylindrical grinder
KR20190107925A (en) * 2018-03-13 2019-09-23 (주)태일산업 Proportional control valve manufacturing method and proportional control valve manufactured by this manufacturing method
CN210218600U (en) * 2019-05-28 2020-03-31 金国贤 Intelligent transmission proportional differential system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009214276A (en) * 2008-03-12 2009-09-24 Nisshin Seisakusho:Kk Cylindrical grinding machine and cylindrical grinding method thereof
CN107916324A (en) * 2017-11-14 2018-04-17 张剑 A kind of valve spool of valve processing technology
CN108515312A (en) * 2018-03-06 2018-09-11 哈尔滨汽轮机厂有限责任公司 A kind of processing method of regulating valve valve disc
KR20190107925A (en) * 2018-03-13 2019-09-23 (주)태일산업 Proportional control valve manufacturing method and proportional control valve manufactured by this manufacturing method
CN208913717U (en) * 2018-09-10 2019-05-31 深圳市银泰联五金机械有限公司 A kind of multi-axis linkage numerical control cylindrical grinder grinding device
CN209125478U (en) * 2018-11-28 2019-07-19 常州市鑫愉宝传动部件有限公司 A kind of automation cylindrical grinder
CN210218600U (en) * 2019-05-28 2020-03-31 金国贤 Intelligent transmission proportional differential system

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