CN113334164B - Shaft type cylindrical grinding device and method - Google Patents
Shaft type cylindrical grinding device and method Download PDFInfo
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- CN113334164B CN113334164B CN202110602327.6A CN202110602327A CN113334164B CN 113334164 B CN113334164 B CN 113334164B CN 202110602327 A CN202110602327 A CN 202110602327A CN 113334164 B CN113334164 B CN 113334164B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/363—Single-purpose machines or devices for grinding surfaces of revolution in situ
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a device and a method for grinding an excircle of a shaft, aiming at solving the defect of low working efficiency of grinding a shaft workpiece. The grinding machine comprises a machine body, a grinding disc and a clamping assembly, wherein a workbench capable of moving transversely and a mounting seat capable of moving longitudinally are arranged on the machine body, a rotatable shaft type workpiece is clamped on the clamping assembly, the grinding disc is rotatably arranged on the mounting seat, a grinding ring is arranged at the edge of the grinding disc, the axis of the grinding ring is parallel to that of the shaft type workpiece, the outer circular surface of the grinding ring is an outer circular grinding surface, two end surfaces of the grinding ring are end surface grinding surfaces, the outer circular grinding surface is in contact grinding with the outer circular surface of the shaft type workpiece, and the two end surface grinding surfaces are in contact grinding with two end surfaces of the shaft type workpiece. The shaft type cylindrical grinding device improves the working efficiency and the grinding precision.
Description
Technical Field
The invention relates to a shaft grinding technology, in particular to a shaft cylindrical grinding device and a shaft cylindrical grinding method.
Background
At present, when shaft workpieces are subjected to outer surface grinding, not only an outer circular surface but also an end surface need to be machined, the traditional method is to obliquely arrange a grinding wheel, trim the outer circular surface of the grinding wheel into a 90-degree molded surface and grind the outer circular surface and the end surface, and the mode has the advantages of high halt correction frequency of the grinding wheel, reduction of working efficiency and poor grinding precision.
Disclosure of Invention
In order to overcome the defects, the invention provides a shaft type cylindrical grinding device and a method, which improve the working efficiency and grinding precision.
In order to solve the technical problem, the invention adopts the following technical scheme: the utility model provides an axle type cylindrical grinding device, which comprises a bod, the mill, the clamping subassembly, but install lateral shifting's workstation and longitudinal movement's mount pad on the fuselage, rotatable axle type work piece is accompany to clamping subassembly facial make-up, the mill rotates to be installed on the mount pad, the mill edge is equipped with the grinding ring, grinding ring axis and axle type work piece axis are parallel, the outer disc of grinding ring is the cylindrical grinding face, grinding ring both ends face is the terminal surface grinding face, the cylindrical grinding face contacts the grinding with the outer disc of axle type work piece, both ends face grinding face and the both ends face contact grinding of axle type work piece.
When the shaft workpiece is ground, the clamping assembly is clamped on and can rotate, the grinding ring on the grinding disc grinds the shaft workpiece, the grinding ring rotates along with the grinding disc, and the worktable transversely feeds to enable the outer circle grinding surface to be in contact grinding with the outer circle surface of the shaft workpiece. After the end face grinding surface on the grinding ring is contacted with the end face of the shaft workpiece, the mounting seat is longitudinally fed to grind the end face grinding surface on the grinding ring to the end face of the shaft workpiece. The grinding ring on the grinding disc can not only realize grinding processing of the excircle of the shaft workpiece, but also realize grinding processing of the end face of the shaft workpiece, and the grinding disc does not need to be obliquely arranged. The external grinding processing and the end face grinding processing of the shaft workpiece are completed in one process, and the machine does not need to be stopped, so that the working efficiency is improved; the shaft workpiece is clamped on the clamping assembly, the clamping is reliable, the workbench moves transversely, the mounting seat moves longitudinally, and the feeding is performed while grinding, so that the grinding precision is improved. The shaft type cylindrical grinding device improves the working efficiency and the grinding precision.
Preferably, the clamping assembly comprises a support and an ejector pin base, a rotatable front ejector pin is mounted on the support, a rotatable rear ejector pin is mounted on the ejector pin base, the front ejector pin abuts against the front end of the shaft workpiece, and the rear ejector pin abuts against the rear end of the shaft workpiece.
When the shaft workpiece is clamped, the two ends of the shaft workpiece are propped against the front thimble and the rear thimble, so that the shaft workpiece is convenient and reliable to clamp.
Preferably, the support is provided with a rotating motor and a rotating column, the front thimble is arranged at one end of the rotating column, and the other end of the rotating column is in transmission connection with the rotating motor. The rotating motor drives the rotating column to rotate, so that the shaft workpiece rotates.
Preferably, the support is connected with an installation sleeve, bearings are installed at two ends of the installation sleeve, and the bearings are sleeved on the rotating column in an adaptive mode. The mounting sleeve plays a good positioning role for the rotating column, and the stable operation of the rotating column is ensured.
Preferably, the thimble seat is provided with a thimble post, a pushing post and a piston cylinder, the thimble post is rotatably arranged on the thimble seat and can transversely move, the thimble post is provided with a mounting hole, one end of the pushing post is movably arranged in the mounting hole, the other end of the pushing post is connected with a telescopic rod of the piston cylinder, a buffer spring is arranged in the mounting hole and abuts against the pushing post, and the rear thimble is arranged at the end part of the thimble post.
The telescopic rod of the piston cylinder moves to drive the pushing column to move, and the pushing column pushes the ejector pin column to move, so that the rear ejector pin reliably abuts against the end part of the shaft workpiece. The buffer spring enables the shaft workpieces to be clamped with a certain buffer space, and ensures that the rear ejector pin can reliably push against the end faces of the shaft workpieces.
Preferably, the thimble seat is provided with a positioning sleeve, the positioning sleeve is sleeved on the outer wall of the thimble column, and the side wall of the positioning sleeve is densely distributed with a plurality of through holes. The positioning sleeve has good positioning effect on the thimble column, ensures the stable operation of the thimble seat and avoids the deviation phenomenon. The positioning sleeve is provided with the through hole, so that the heat dissipation effect is achieved, lubricating oil or lubricating grease can be stored, the lubricating effect is improved, and the friction resistance is reduced.
Preferably, the pushing column is internally provided with an adjusting hole, an adjusting rod capable of transversely moving and adjusting the position is installed in the adjusting hole, two ends of the adjusting rod respectively penetrate through two ends of the pushing column, and the buffer spring abuts against the adjusting rod. The adjusting rod can adjust the distance from front to back, so that the clamping force of the rear ejector pin on the end face of the shaft workpiece is adjusted, and reliable clamping is guaranteed.
Preferably, a transverse moving motor and a longitudinal moving motor are installed on the machine body, an output shaft of the transverse moving motor is connected with a transverse moving screw rod, a transverse moving threaded sleeve is installed on the workbench, and the transverse moving screw rod is connected with the transverse moving threaded sleeve in a matched mode; the output shaft of the longitudinal movement motor is connected with a longitudinal movement screw rod, a longitudinal movement threaded sleeve is arranged on the mounting seat, and the longitudinal movement screw rod is in adaptive connection with the longitudinal movement threaded sleeve.
The transverse moving and longitudinal moving of the workbench and the mounting seat are realized through the transverse moving motor and the longitudinal moving motor, and the movement control is accurate and reliable.
A shaft type excircle grinding method utilizes a shaft type excircle grinding device to grind shaft type workpieces, and comprises the following steps: s1, clamping a shaft workpiece to be machined on a clamping assembly; s2, the grinding disc and the shaft workpiece rotate in opposite directions; s3, the workbench moves transversely to enable one end face of the shaft workpiece to be flush with a grinding face of one end face of the grinding disc; s4, the mounting seat moves longitudinally to enable a grinding surface of one end face of the grinding disc to continuously extend into one end face of the shaft workpiece for grinding; s5, after one end face of the shaft workpiece is ground, the mounting seat longitudinally moves to return, so that the outer circle grinding face of the grinding disc is flush with the outer circle face of the shaft workpiece; s6, the workbench is moved transversely to enable the shaft workpiece to move axially, and the outer circular surface of the shaft workpiece slides across the outer circular grinding surface of the grinding disc to finish grinding; s7, longitudinally moving the mounting seat to enable the grinding surface of the other end face of the grinding disc to be in contact grinding with the other end face of the shaft workpiece, and enabling the grinding surface of the end face to continuously extend into the end face of the shaft workpiece for grinding; and S8, after the other end face of the shaft workpiece is ground, longitudinally moving the mounting seat to return, transversely moving the workbench to return, and taking down the shaft workpiece.
The grinding work efficiency and the grinding precision of the excircle surface and the end surface of the shaft workpiece are high.
Preferably, the rotating speed of the shaft workpiece is 10-50 r/min; the linear speed of the grinding ring is not less than 90 m/s.
Compared with the prior art, the invention has the beneficial effects that: the grinding efficiency and the grinding precision of the outer circular surface and the end surface of the shaft workpiece are high.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the position of the table of the present invention;
FIG. 3 is a partial sectional view of embodiment 2 of the present invention;
FIG. 4 is a schematic view of an inflation assembly of embodiment 2 of the present invention;
in the figure: 1. the device comprises a machine body, 2, a grinding disc, 3, a workbench, 4, a mounting seat, 5, an outer circle grinding surface, 6, an end surface grinding surface, 7, a chuck, 8, a support seat, 9, a thimble seat, 10, a front thimble, 11, a rear thimble, 12, a rotating motor, 13, a rotating column, 14, a mounting sleeve, 15, a thimble column, 16, a pushing column, 17, a piston cylinder, 18, a mounting hole, 19, a buffer spring, 20, a positioning sleeve, 21, a shaft workpiece, 22, an adjusting hole, 23, an adjusting rod, 24, a transverse moving motor, 25, a longitudinal moving motor, 26, a transverse moving guide rail, 27, a longitudinal moving guide rail, 28, a gear ring section, 29, a ratchet section, 30, a mounting cylinder, 31, a transmission gear, 32, an inflation cylinder, 33, a vent pipe, 34, an inflation plug, 35, a connecting rod, 36, an inflation cavity, 37, an air inlet hole, 38, a pushing plug, 39, a fine hole, 40, a pressure accumulation cavity, 41, an extension column, 42, a spring, 43, a pawl, 44 and an end cover.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: the utility model provides an axle type cylindrical grinding device (see attached figure 1, attached figure 2), including fuselage 1, mill 2, the clamping subassembly, but install lateral shifting's workstation 3 and longitudinal movement's mount pad 4 on the fuselage, rotatable axle type work piece 21 is accompany to the clamping subassembly facial make-up, the mill rotates to be installed on the mount pad, the mill edge is equipped with the grinding ring, grinding ring axis and axle type work piece axis are parallel, the outer disc of grinding ring is cylindrical grinding face 5, grinding ring both ends face is terminal surface grinding face 6, cylindrical grinding face and the outer disc contact grinding of axle type work piece, both ends face grinding face and the both ends face contact grinding of axle type work piece. The mounting seat is provided with a chuck 7, the millstone is arranged on the chuck, and the grinding surfaces of the two end surfaces respectively protrude out of the two side surfaces of the millstone.
The clamping assembly comprises a support 8 and an ejector pin base 9, a rotatable front ejector pin 10 is mounted on the support, a rotatable rear ejector pin 11 is mounted on the ejector pin base, the front ejector pin abuts against the front end of the shaft workpiece, and the rear ejector pin abuts against the rear end of the shaft workpiece. The support is provided with a rotating motor 12 and a rotating column 13, the front thimble is arranged at one end of the rotating column, and the other end of the rotating column is in transmission connection with the rotating motor. The support is connected with a mounting sleeve 14, bearings are mounted at two ends of the mounting sleeve, and the bearings are sleeved on the rotating column in a matching mode. The support and the thimble seat can slide on the workbench and are locked by the screws, so that the positions of the front thimble and the rear thimble can be conveniently adjusted to meet the clamping requirements of workpieces with different sizes.
The thimble seat is provided with a thimble post 15, a pushing post 16 and a piston cylinder 17, the thimble post is rotatably arranged on the thimble seat and can be transversely moved, the thimble post is provided with a mounting hole 18, one end of the pushing post is movably arranged in the mounting hole, the other end of the pushing post is connected with a telescopic rod of the piston cylinder, a buffer spring 19 is arranged in the mounting hole, the buffer spring is abutted to the pushing post, and the rear thimble is arranged at the end part of the thimble post. The thimble seat is provided with a positioning sleeve 20 which is sleeved on the outer wall of the thimble column, and the side wall of the positioning sleeve is densely distributed with a plurality of through holes. An adjusting hole 22 is formed in the pushing column, an adjusting rod 23 capable of transversely moving and adjusting the position is installed in the adjusting hole, two ends of the adjusting rod penetrate through two ends of the pushing column respectively, and the buffer spring abuts against the adjusting rod. The adjusting rod is in threaded connection with the adjusting hole.
A transverse moving motor 24 and a longitudinal moving motor 25 are arranged on the machine body, the output shaft of the transverse moving motor is connected with a transverse moving screw rod, a transverse moving screw sleeve is arranged on the workbench, and the transverse moving screw rod is connected with the transverse moving screw sleeve in a matching way; the output shaft of the longitudinal movement motor is connected with a longitudinal movement screw rod, a longitudinal movement threaded sleeve is arranged on the mounting seat, and the longitudinal movement screw rod is in adaptive connection with the longitudinal movement threaded sleeve. The two sides of the worktable on the machine body are provided with transverse guide rails 26, and the worktable is arranged on the two transverse guide rails in a sliding way; both sides of the mounting seat on the machine body are provided with longitudinal moving guide rails 27, and the mounting seat is slidably mounted on the two longitudinal moving guide rails.
A shaft cylindrical grinding method utilizes a shaft cylindrical grinding device to grind shaft workpieces, and comprises the following steps: s1, clamping a shaft workpiece to be machined on a clamping assembly; s2, the grinding disc and the shaft workpiece rotate in opposite directions; s3, the workbench moves transversely to enable one end face of the shaft workpiece to be flush with a grinding face of one end face of the grinding disc; s4, the mounting seat moves longitudinally to enable a grinding surface of one end face of the grinding disc to continuously extend into one end face of the shaft workpiece for grinding; s5, after one end face of the shaft workpiece is ground, the mounting seat longitudinally moves to return, so that the outer circle grinding face of the grinding disc is flush with the outer circle face of the shaft workpiece; s6, transversely moving the workbench to enable the shaft workpiece to move axially, and enabling the outer circular surface of the shaft workpiece to slide over the outer circular grinding surface of the grinding disc to finish grinding; s7, longitudinally moving the mounting seat to enable the grinding surface of the other end face of the grinding disc to be in contact grinding with the other end face of the shaft workpiece, and enabling the grinding surface of the end face to continuously extend into the end face of the shaft workpiece for grinding; and S8, after the other end face of the shaft workpiece is ground, longitudinally moving the mounting seat to return, transversely moving the workbench to return, and taking down the shaft workpiece. The rotating speed of the shaft workpiece is 10-50 r/min; the linear speed of the grinding ring is not less than 90 m/s.
When the shaft workpiece is ground, the clamping assembly is clamped on and can rotate, the grinding ring on the grinding disc grinds the shaft workpiece, the grinding ring rotates along with the grinding disc, and the worktable transversely feeds to enable the outer circle grinding surface to be in contact grinding with the outer circle surface of the shaft workpiece. After the end face grinding surface on the grinding ring is contacted with the end face of the shaft workpiece, the mounting seat is longitudinally fed to grind the end face grinding surface on the grinding ring to the end face of the shaft workpiece. The grinding ring on the grinding disc can not only realize grinding processing of the excircle of the shaft workpiece, but also realize grinding processing of the end face of the shaft workpiece, and the grinding disc does not need to be obliquely arranged. The outer circle grinding and the end face grinding of the shaft workpiece are finished in one process, and the machine does not need to be stopped, so that the working efficiency is improved; the shaft workpiece is clamped on the clamping assembly, so that the clamping is reliable, the workbench moves transversely, the mounting seat moves longitudinally, and the feeding is performed while grinding, so that the grinding precision is improved. The shaft type cylindrical grinding device improves the working efficiency and the grinding precision.
Example 2: a shaft type cylindrical grinding device (see attached figures 3 and 4) is similar to the shaft type cylindrical grinding device in the embodiment 1 in structure, and mainly different in that a tooth ring section 28 and a ratchet section 29 are arranged on the outer wall of a pushing column in the embodiment, an inflating assembly and an installation barrel 30 are arranged on a top needle base, the inflating assembly comprises a transmission gear 31, an inflating barrel 32 and an air pipe 33, an inflating plug 34 is arranged in the inflating barrel, a connecting rod 35 is hinged between the inflating plug and the transmission gear, the transmission gear is in meshing transmission with the tooth ring section on the outer wall of the pushing column, the transmission gear is rotatably arranged on the top needle base, the inflating barrel is fixedly arranged on the top needle base, an inflating cavity 36 is formed between the bottom of the inflating barrel and the inflating plug, an air inlet 37 communicated with the inflating cavity is arranged at the bottom of the inflating barrel, and a one-way air inlet valve is arranged in the air inlet. The installation cylinder is internally provided with a pushing plug 38 which is provided with an air leakage pore 39, a pressure accumulation cavity 40 is formed between the bottom of the installation cylinder and the pushing plug, and a vent pipe is communicated between the inflation cavity and the pressure accumulation cavity. A one-way inflation valve is arranged on the air passage between the inflation cavity and the pressure accumulation cavity. The push plug is connected with an extension column 41, the extension column extends out of the installation barrel, a return spring 42 is installed in the installation barrel and is abutted against the push plug, the end part of the extension column is hinged with a pawl 43, and the pawl can be inserted into a tooth groove of the ratchet section. The end part of the mounting cylinder is connected with an end cover 44, a return spring is abutted against the end cover, a positioning spring is connected between one side of the pawl and the extension column, a positioning convex column is arranged on the other side of the pawl on the extension column, and the pawl is abutted against the positioning convex column. The other structure is the same as embodiment 1.
When the piston cylinder breaks down and loses force, especially when the hydraulic cylinder or the air cylinder leaks, the telescopic rod of the piston cylinder is in a relaxed state, the push column cannot be axially positioned, and the shaft workpiece cannot be reliably clamped. However, the push pin base in this embodiment has installed inflation assembly and an installation section of thick bamboo, and when the push post rotated along with axle class work piece, the ring gear section drove drive gear and rotated, made the connecting rod drive the stopper of inflating reciprocate in the inflator, inflated the pressure chamber, and the atmospheric pressure in the pressure chamber increased. At the initial stage, the gas velocity that holds the chamber is greater than the gas leakage speed in gas leakage pore to the messenger holds the increase of intracavity atmospheric pressure, and the push plug moves to the direction that is close to the promotion post, along with the continuous increase of the intracavity atmospheric pressure that holds, the gas leakage speed in gas leakage pore and the gas velocity that holds the chamber reach the equilibrium back, and the push plug is in a balanced position, realizes the location to the promotion post in the tooth's socket of pawl cartridge ratchet section this moment, even the piston cylinder fault failure also can guarantee the location to the promotion post, has guaranteed the reliable clamping to shaft class work piece. When axle type work piece stall is accomplished in the grinding, the transmission gear stall, under the return spring effect, the propelling movement stopper is by slow jack-up return, and the air current that the intracavity was held at this moment is discharged through gas leakage pore to in the ratchet groove that makes the pawl break away from the ratchet section, the messenger promotes the post and can the axial free movement.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.
Claims (10)
1. A shaft type cylindrical grinding device comprises a machine body, a grinding disc and a clamping assembly, and is characterized in that a workbench capable of moving transversely and a mounting seat capable of moving longitudinally are mounted on the machine body, a rotatable shaft type workpiece is clamped on the clamping assembly, the grinding disc is rotatably mounted on the mounting seat, a grinding ring is arranged at the edge of the grinding disc, the axis of the grinding ring is parallel to the axis of the shaft type workpiece, the outer circular surface of the grinding ring is an outer circular grinding surface, two end surfaces of the grinding ring are end surface grinding surfaces, the outer circular grinding surfaces are in contact grinding with the outer circular surface of the shaft type workpiece, and the two end surface grinding surfaces are in contact grinding with the two end surfaces of the shaft type workpiece; the clamping assembly comprises a support and a thimble seat; the thimble seat is provided with a thimble column, a pushing column and a piston cylinder, the thimble column is rotatably arranged on the thimble seat, and the thimble column can be transversely movably arranged; the outer wall of the pushing column is provided with a gear ring section and a ratchet section, the thimble seat is provided with an inflating assembly and an installation cylinder, the inflating assembly comprises a transmission gear, an inflator and a vent pipe, an inflating plug is installed in the inflator, a connecting rod is hinged between the inflating plug and the transmission gear, the transmission gear is in meshing transmission with the gear ring section on the outer wall of the pushing column, the transmission gear is rotatably installed on the thimble seat, the inflator is fixedly installed on the thimble seat, an inflating cavity is formed between the bottom of the inflator and the inflating plug, the bottom of the inflator is provided with an air inlet communicated with the inflating cavity, and a one-way air inlet valve is installed in the air inlet; a pushing plug is arranged in the mounting cylinder, an air leakage pore is arranged on the pushing plug, a pressure storage cavity is formed between the bottom of the mounting cylinder and the pushing plug, and a vent pipe is communicated between the inflation cavity and the pressure storage cavity; a one-way inflation valve is arranged on an air passage between the inflation cavity and the pressure accumulation cavity; the push plug is connected with an extension column, the extension column extends out of the installation barrel, a return spring is installed in the installation barrel and is abutted against the push plug, the end part of the extension column is hinged with a pawl, and the pawl can be inserted into a tooth groove of the ratchet section; the end part of the mounting cylinder is connected with the end cover, the return spring is abutted against the end cover, the positioning spring is connected between one side of the pawl and the extension column, the other side of the pawl on the extension column is provided with a positioning convex column, and the pawl is abutted against the positioning convex column.
2. The apparatus of claim 1, wherein the support is provided with a rotatable front pin, the pin holder is provided with a rotatable rear pin, the front pin abuts against the front end of the shaft workpiece, and the rear pin abuts against the rear end of the shaft workpiece.
3. The cylindrical grinding device according to claim 2, wherein the support is provided with a rotating motor and a rotating column, the front thimble is arranged at one end of the rotating column, and the other end of the rotating column is in transmission connection with the rotating motor.
4. The cylindrical grinding device for shafts as claimed in claim 3, wherein the support is connected with a mounting sleeve, bearings are mounted at both ends of the mounting sleeve, and the bearings are fittingly sleeved on the rotating column.
5. The cylindrical grinding device according to claim 2, wherein the ejector pin is provided with a mounting hole, one end of the pushing rod is movably mounted in the mounting hole, the other end of the pushing rod is connected with the telescopic rod of the piston cylinder, a buffer spring is mounted in the mounting hole and abuts against the pushing rod, and the rear ejector pin is mounted at the end of the ejector pin.
6. The cylindrical grinding device according to claim 5, wherein the thimble seat is provided with a positioning sleeve, the positioning sleeve is sleeved on the outer wall of the thimble column, and a plurality of through holes are densely distributed on the side wall of the positioning sleeve.
7. The cylindrical grinding apparatus for shafts according to claim 5, wherein the pushing cylinder has an adjusting hole, the adjusting hole has an adjusting rod mounted therein for lateral movement of the adjusting position, the two ends of the adjusting rod respectively extend through the two ends of the pushing cylinder, and the buffer spring abuts against the adjusting rod.
8. The shaft type cylindrical grinding device according to any one of claims 1 to 7, wherein a transverse moving motor and a longitudinal moving motor are arranged on the machine body, an output shaft of the transverse moving motor is connected with a transverse moving screw rod, a transverse moving screw sleeve is arranged on the workbench, and the transverse moving screw rod is connected with the transverse moving screw sleeve in a matching manner; an output shaft of the longitudinal movement motor is connected with a longitudinal movement screw rod, a longitudinal movement threaded sleeve is installed on the installation seat, and the longitudinal movement screw rod is connected with the longitudinal movement threaded sleeve in a matched mode.
9. A method for grinding the outer circle of a shaft, characterized in that the grinding device for grinding the outer circle of a shaft according to any one of claims 1 to 8 is used for grinding the shaft workpiece, and comprises the following steps: s1, clamping a shaft workpiece to be machined on a clamping assembly; s2, the grinding disc and the shaft workpiece rotate in opposite directions; s3, the workbench moves transversely to enable one end face of the shaft workpiece to be flush with a grinding face of one end face of the grinding disc; s4, the mounting seat moves longitudinally to enable a grinding surface of one end face of the grinding disc to continuously extend into one end face of the shaft workpiece for grinding; s5, after one end face of the shaft workpiece is ground, the mounting seat longitudinally moves to return, so that the outer circle grinding face of the grinding disc is flush with the outer circle face of the shaft workpiece; s6, the workbench is moved transversely to enable the shaft workpiece to move axially, and the outer circular surface of the shaft workpiece slides across the outer circular grinding surface of the grinding disc to finish grinding; s7, longitudinally moving the mounting seat to enable the grinding surface of the other end face of the grinding disc to be in contact grinding with the other end face of the shaft workpiece, and enabling the grinding surface of the end face to continuously extend into the end face of the shaft workpiece for grinding; and S8, after the other end face of the shaft workpiece is ground, longitudinally moving the mounting seat to return, transversely moving the workbench to return, and taking down the shaft workpiece.
10. The method of claim 9, wherein the shaft workpiece rotates at a speed of 10-50 rpm; the linear velocity of the grinding ring is not less than 90 m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110602327.6A CN113334164B (en) | 2021-05-31 | 2021-05-31 | Shaft type cylindrical grinding device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110602327.6A CN113334164B (en) | 2021-05-31 | 2021-05-31 | Shaft type cylindrical grinding device and method |
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| CN113334164A CN113334164A (en) | 2021-09-03 |
| CN113334164B true CN113334164B (en) | 2023-02-10 |
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| CN113714907B (en) * | 2021-09-28 | 2022-12-16 | 江苏老树宠物用品有限公司 | Polishing machine for outer circle of wood pole |
| CN114800155B (en) * | 2022-04-14 | 2023-05-12 | 江苏如非轴承科技有限公司 | Raceway grinding device of high-precision forklift bearing |
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| GB913227A (en) * | 1960-03-24 | 1962-12-19 | Midwest Supply & Mfg Co | Adjustable mounting for buffing wheels and the like |
| JPS63212456A (en) * | 1986-11-18 | 1988-09-05 | ソシエテ ヌーベル アンデユストリエル エコーメルシヤル ダプリカシヨン メカニク エス・エ・アール・エル | Mold inner-surface grinder |
| CN106041649A (en) * | 2015-04-08 | 2016-10-26 | 三菱电机株式会社 | Grinding method and grinding apparatus |
| CN211161980U (en) * | 2019-11-08 | 2020-08-04 | 杭州唐能阀门有限公司 | Rapid clamping device for plane milling of shaft parts |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB359383A (en) * | 1929-09-27 | 1931-10-29 | Cincinnati Grinders Inc | Improvements in or relating to grinding or abrading machines |
| GB913227A (en) * | 1960-03-24 | 1962-12-19 | Midwest Supply & Mfg Co | Adjustable mounting for buffing wheels and the like |
| JPS63212456A (en) * | 1986-11-18 | 1988-09-05 | ソシエテ ヌーベル アンデユストリエル エコーメルシヤル ダプリカシヨン メカニク エス・エ・アール・エル | Mold inner-surface grinder |
| CN106041649A (en) * | 2015-04-08 | 2016-10-26 | 三菱电机株式会社 | Grinding method and grinding apparatus |
| CN211161980U (en) * | 2019-11-08 | 2020-08-04 | 杭州唐能阀门有限公司 | Rapid clamping device for plane milling of shaft parts |
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|---|---|
| CN113334164A (en) | 2021-09-03 |
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Denomination of invention: A shaft type cylindrical grinding device and method Effective date of registration: 20230803 Granted publication date: 20230210 Pledgee: Zhejiang Deqing Rural Commercial Bank Co.,Ltd. leidian sub branch Pledgor: HUZHOU MINGHAO MACHINERY Co.,Ltd. Registration number: Y2023980050723 |