CN115179127A - Valve grinding tool - Google Patents
Valve grinding tool Download PDFInfo
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- CN115179127A CN115179127A CN202211082064.1A CN202211082064A CN115179127A CN 115179127 A CN115179127 A CN 115179127A CN 202211082064 A CN202211082064 A CN 202211082064A CN 115179127 A CN115179127 A CN 115179127A
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- 238000005498 polishing Methods 0.000 claims abstract description 85
- 230000005540 biological transmission Effects 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 21
- 238000003754 machining Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009471 action Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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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
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to the technical field of valve grinding, in particular to a valve grinding tool, which comprises a processing table, a clamping jaw and a grinding wheel, wherein the clamping jaw can be slidably arranged on the processing table and is used for fixing a workpiece; the grinding wheel is used for grinding a workpiece, the rotating speed of the grinding wheel is V, the diameter of the workpiece is D, and the rotating speed V of the grinding wheel is inversely related to the diameter D of the workpiece. By arranging the polishing wheel and enabling the rotating speed of the polishing wheel to be inversely related to the diameter of the workpiece, when the workpiece with a smaller diameter is polished, the polishing time is reduced by increasing the polishing speed, so that the polishing efficiency is improved; when the great work piece of diameter of polishing, through reducing the speed of polishing, increase the time of polishing, guaranteed the effect of polishing, reduced the work piece simultaneously and polished generating heat of taking turns, reduced the work piece surface polish the possibility of inequality and polishing wheel damage.
Description
Technical Field
The invention relates to the technical field of valve grinding, in particular to a valve grinding tool.
Background
Need polish when valve processing, polish the connection terminal surface at both ends and level to improve the precision of valve installation, when polishing to the terminal surface of valve, need control at certain speed range of polishing, just can guarantee the effect of polishing and the efficiency of polishing.
For example, chinese patent CN112975656B discloses a grinding device for machining a valve body of a flat gate valve and a machining process thereof, which includes an installation box, wherein the top outer wall of the installation box is fixedly and symmetrically connected with a fixing plate, a rotation shaft penetrates through the fixing plate, one end of the rotation shaft is fixedly connected with a grinding disc, and the top outer wall of the installation box is fixedly connected with a water tank.
Most of the existing grinding devices can only grind valves of one type, and can not adjust according to the different types of valves.
Disclosure of Invention
The applicant finds that the concentricity of the existing grinding device is relatively poor, and can not carry out the regulation of adaptation according to the different valves of model when polishing, will lead to the effect of polishing when the valve of different models is polished relatively poor, and will adopt the mode of coarse grinding earlier then accurate grinding to polish usually when polishing to the as-cast valve terminal surface, the existing device can't carry out the adaptation to two kinds of modes, and the valve body generates heat seriously when polishing, cause the valve body quality of polishing out uneven, the wheel of polishing is fragile, cause unnecessary economic loss.
Based on this, it can't carry out the regulation that adapts to, the valve body is serious when polishing to the unable adaptation of corase grind and accurate grinding, the valve body that carries out adaptation, polishing of current device according to the different valve of model, causes the valve body quality of polishing out uneven, and the problem that the wheel fragile exists of polishing provides a valve grinding frock.
The above purpose is realized by the following technical scheme:
the utility model provides a valve grinding frock, includes:
a processing table;
the clamping jaw is used for fixing a workpiece;
the grinding wheel is used for grinding the workpiece, the rotating speed of the grinding wheel is V, and the diameter of the workpiece is D;
v and D are inversely related.
In one embodiment, the machining table further comprises a pushing piece, a driving wheel, a first positioning piece, a first transmission piece, a second transmission piece, a first elastic piece, a second elastic piece, a first limiting piece and a first adjusting piece, wherein the pushing piece is slidably and rotatably arranged on the machining table; the first positioning piece is slidably arranged on the pushing piece; the grinding wheel can be rotatably arranged on the first positioning piece, and the first transmission piece can be slidably arranged on the grinding wheel; one end of the first elastic piece is fixedly connected to the first positioning piece, and the other end of the first elastic piece abuts against the first transmission piece; the driving wheel can be rotatably arranged on the first positioning piece, and the second transmission piece can be slidably arranged on the driving wheel; one end of the second elastic piece is fixedly arranged on the first positioning piece, and the other end of the second elastic piece is abutted against the second transmission piece; the first adjusting piece is slidably arranged on the first positioning piece and abutted against the second transmission piece, and the first adjusting piece can move along the first limiting piece; the second transmission piece moves to drive the first transmission piece to move, and the first transmission piece drives the polishing wheel to polish the workpiece.
In one embodiment, the device further comprises an ejector and a first connector, wherein the ejector is slidably arranged on the pushing piece, one end of the first connector is rotatably arranged on the ejector, and the other end of the first connector is rotatably arranged on the first positioning piece.
In one embodiment, the device further comprises a hydraulic cylinder, and the hydraulic cylinder provides driving force for moving the pushing piece.
In one embodiment, the device further comprises a second adjusting piece, a third adjusting piece, a second limiting piece and a telescopic piece, wherein the second adjusting piece is sleeved on the pushing piece, and the second adjusting piece is detachably connected with the pushing piece; the second limiting piece is arranged on the second adjusting piece, and the pushing piece moves to drive the second limiting piece to move; one end of the telescopic piece is fixedly arranged on the processing table, and the other end of the telescopic piece is arranged on the second adjusting piece in a sliding manner; the third adjusting member is slidably disposed on the pushing member.
In one embodiment, the push piece further comprises a fourth adjusting piece and a second connecting piece, one end of the first limiting piece is rotatably arranged on the push piece, and the other end of the first limiting piece is rotatably arranged on the second connecting piece; the second connecting piece is fixedly arranged on the fourth adjusting piece; the fourth adjusting member is detachably provided on the pushing member.
In one embodiment, the pushing device further comprises a second positioning piece and a pressure sensor, wherein the second positioning piece is fixedly arranged on the pushing piece, and the pressure sensor is fixedly arranged on the second positioning piece.
In one embodiment, the pushing device further comprises a power mechanism, and the power mechanism provides driving force for the pushing piece to move.
In one embodiment, the grinding wheel comprises a rough grinding wheel and a fine grinding wheel.
In one embodiment, the jaws are four-jaw chucks.
The beneficial effects of the invention are:
the invention relates to a valve grinding tool which comprises a processing table, a clamping jaw and a grinding wheel, wherein the clamping jaw can be arranged on the processing table in a sliding manner and is used for fixing a workpiece; the grinding wheel is used for grinding the workpiece, the rotating speed of the grinding wheel is V, the diameter of the workpiece is D, and the rotating speed V of the grinding wheel is in negative correlation with the diameter D of the workpiece. By arranging the polishing wheel and enabling the rotating speed of the polishing wheel to be inversely related to the diameter of the workpiece, when the workpiece with a smaller diameter is polished, the polishing time is reduced by increasing the polishing speed, so that the polishing efficiency is improved; when a workpiece with a larger diameter is polished, the polishing speed is reduced, the polishing time is prolonged, the polishing effect is ensured, the heating of the workpiece and the polishing wheel is reduced, and the possibility of uneven polishing of the surface of the workpiece and damage of the polishing wheel is reduced; the ejection ring, the connecting rod and the positioning block are arranged, so that the workpiece with different diameters can be adapted.
Drawings
Fig. 1 is a schematic perspective view of a valve grinding tool used in grinding a valve according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a valve grinding tool according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural view of a valve grinding tool with a valve removed according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a polishing device of a valve grinding tool according to an embodiment of the present invention;
fig. 5 is a partially enlarged structural schematic diagram of a part a of the polishing device of the valve grinding tool shown in fig. 4;
fig. 6 is a schematic structural diagram of a valve grinding tool for grinding a small-diameter valve according to an embodiment of the present invention;
fig. 7 is a schematic front view of a valve grinding tool for grinding a large-diameter valve according to an embodiment of the present invention;
fig. 8 is a schematic front view of a valve grinding tool for grinding a small-diameter valve according to an embodiment of the present invention.
Wherein:
100. a valve;
200. a processing table; 210. a base; 220. a power mechanism; 230. a claw;
300. a polishing device; 310. polishing the assembly; 311. grinding the wheel; 312. a first truncated cone; 313. a drive wheel; 314. a second truncated cone; 315. a first adjusting lever; 316. a limiting ring; 317. adjusting the nut; 318. positioning blocks; 319. a connecting seat; 320. a positioning assembly; 321. a push rod; 322. an adjusting ring; 3221. a telescopic rod; 323. a limiting block; 324. a second adjusting lever; 325. pushing the ring; 326. a connecting rod; 327. and (5) positioning the wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 8, a valve grinding tool according to an embodiment of the present invention is used for adapting different types of workpieces, performing two ways of rough grinding and fine grinding, and reducing heat generation of the workpiece and the grinding wheel, and for convenience of description, the workpiece is named as a valve 100; in the present embodiment, the valve grinding tool includes a processing table 200, a jaw 230, a grinding wheel 311 and a positioning assembly 320, the jaw 230 is slidably disposed on the processing table 200, and the jaw 230 is used for clamping the valve 100; the positioning assembly 320 is used to determine the position of the valve 100 to be polished (to fit different models/different diameters of the valve 100); the grinding wheel 311 is used to grind the valve 100 after the positioning assembly 320 is adapted to different types (diameters) of valves 100. The positioning assembly 320 is arranged, so that the valve 100 with different models can be adapted; by arranging the grinding wheel 311 and enabling the rotating speed of the grinding wheel 311 to be inversely related to the diameter of the valve 100, when the valve 100 with a smaller diameter is ground, the grinding time is reduced by increasing the grinding speed, so that the grinding efficiency is improved; when the valve 100 with the larger diameter is polished, the polishing time is prolonged by reducing the polishing speed, the polishing effect is ensured, the heating of the valve 100 and the polishing wheel 311 is reduced, and the possibility of uneven surface polishing of the valve 100 and damage of the polishing wheel 311 is reduced.
In some embodiments, the valve grinding tool further includes a pushing element, a driving wheel 313, a first positioning element, a first transmission element, a second transmission element, a first elastic element, a second elastic element, a first limiting element, and a first adjusting element, in this embodiment, the pushing element is a push rod 321, the first positioning element is a positioning block 318, the first transmission element is a first truncated cone 312, the second transmission element is a second truncated cone 314, the first elastic element is a first compression spring, the second elastic element is a second compression spring, the first limiting element is a limiting ring 316, and the first adjusting element is a first adjusting rod 315; the push rod 321 is slidably and rotatably disposed on the processing table 200 by the power mechanism 220; the positioning block 318 is slidably connected to the push rod 321; the first cone frustum 312 is slidably connected to the grinding wheel 311, the first cone frustum 312 and the grinding wheel 311 rotate synchronously, and the grinding wheel 311 is used for grinding the end of the valve 100; one end of the first pressure spring is fixedly connected to the positioning block 318, and the other end of the first pressure spring is abutted against the first truncated cone 312; the driving wheel 313 is rotatably connected to the positioning block 318, the second truncated cone 314 is slidably connected to the driving wheel 313, the second truncated cone 314 and the driving wheel 313 rotate synchronously, one end of the second pressure spring abuts against the second truncated cone 314, the other end of the second pressure spring is fixedly connected to the positioning block 318, the first truncated cone 312 and the second truncated cone 314 are always abutted under the action of the first pressure spring and the second pressure spring, and the first truncated cone 312 and the second truncated cone 314 are in friction transmission; one end of the first adjustment lever 315 is slidably fitted to the second adjustment lever 324, and the other end thereof is in contact with the retainer ring 316 while being in contact with the second truncated cone 314, so that the first adjustment lever 315 is slidably moved along the retainer ring 316.
When the diameter of the valve 100 is smaller, the positioning block 318 moves inward along the radial direction of the push rod 321, so that the first adjusting rod 315 moves downward along the limiting ring 316, and under the action of the second pressure spring, the second conical table 314 moves in the direction away from the driving wheel 313, so that the transmission ratio between the first conical table 312 and the second conical table 314 is increased, the rotating speed of the grinding wheel 311 is increased, and the grinding efficiency is improved; when the diameter of the valve 100 is larger, the positioning block 318 moves outward along the radial direction of the push rod 321, so that the first adjusting rod 315 moves upward along the limiting ring 316, and under the action of the second pressure spring, the second conical table 314 moves toward the driving wheel 313, so that the transmission ratio between the first conical table 312 and the second conical table 314 is reduced, the rotating speed of the grinding wheel 311 is reduced, and the grinding effect is improved.
In some embodiments, the valve grinding tool further comprises a pushing member and a first connecting member, in this embodiment, the pushing member is a pushing ring 325, and the first connecting member is a connecting rod 326; the push collar 325 is slidably disposed on the push rod 321, and the rotation of the push rod 321 drives the push collar 325 to rotate synchronously, so that the push collar 325 can slide relatively to the push rod 321 under the driving of the hydraulic cylinder; one end of the connecting rod 326 is hinged on the pushing ring 325, and the other end is hinged on the positioning block 318; the pushing ring 325 can slide relative to the push rod 321 under the driving of the hydraulic cylinder, and the pushing ring 325 drives the positioning block 318 through the connecting rod 326, so that the driving wheel 313 abuts against the inner circumferential wall surface of the valve 100, and is further adapted to the valves 100 with different diameters.
In some embodiments, the valve grinding tool further comprises a hydraulic cylinder, and the pushing ring 325 can slide relative to the push rod 321 under the driving of the hydraulic cylinder, so as to adapt to valves 100 with different diameters.
It is understood that instead of being actuated by a hydraulic cylinder, a pneumatic cylinder or mechanical drive could be used to move the push ring 325.
In some embodiments, the valve grinding tool further includes a second adjusting part, a third adjusting part, a second limiting part, and an expansion part, in this embodiment, the second adjusting part is an adjusting ring 322, the third adjusting part is a second adjusting rod 324, the second limiting part is a limiting block 323, and the expansion part is an expansion rod 3221; the adjusting ring 322 is sleeved on the push rod 321, one end of the adjusting ring is connected with the base 210 through an expansion link 3221, so that the adjusting ring 322 can only slide relative to the push rod 321 and cannot rotate, and the adjusting ring 322 is in threaded fit with the push rod 321; the limiting block 323 is inserted in the groove of the adjusting ring 322, the rotation of the push rod 321 drives the limiting block 323 to rotate synchronously, and the limiting block 323 can rotate relative to the adjusting ring 322 and move axially synchronously with the adjusting ring 322; the second adjusting rod 324 is slidably sleeved in the push rod 321; so that the push rod 321 rotates to drive the adjusting ring 322 to move toward the driving wheel 313, and the adjusting ring 322 stops polishing when contacting the second adjusting rod 324.
In some embodiments, the valve grinding tool further includes a fourth adjusting member and a second connecting member, in this embodiment, the fourth adjusting member is an adjusting nut 317, and the second connecting member is a connecting seat 319; one end of the limiting ring 316 can be hinged on the push rod 321, and the other end is hinged and can be connected to the connecting seat 319 in a sliding manner; one end of the adjusting nut 317 is connected to the push rod 321 through a screw, and the other end is rotatably connected to the connecting base 319.
When the diameter of the valve 100 is smaller, the adjusting nut 317 is moved towards the direction close to the valve 100 by rotating the adjusting nut 317, and the limiting ring 316 is driven to rotate, so that the first adjusting rod 315 is moved towards the direction close to the valve 100, on the one hand, the second cone frustum 314 is moved towards the direction close to the valve 100, so that the transmission ratio between the first cone frustum 312 and the second cone frustum 314 is reduced, and further, the rotating speed of the grinding wheel 311 is reduced; on the other hand, the second adjusting rod 324 moves towards the direction close to the valve 100, so that the limiting block 323 can contact the second adjusting rod 324 after a longer time, the polishing time of the polishing wheel 311 is prolonged, the polishing effect of the polishing wheel 311 is ensured, meanwhile, the heat generated by the valve 100 and the polishing wheel 311 is reduced, and the possibility of uneven surface polishing of the valve 100 and damage to the polishing wheel 311 is reduced. When the diameter of the valve 100 is larger, the adjusting nut 317 is moved in a direction away from the valve 100 by rotating the adjusting nut 317, and the limiting ring 316 is driven to rotate, so that the first adjusting rod 315 is moved in a direction away from the valve 100, on one hand, the second conical table 314 is moved in a direction away from the valve 100, so that the transmission ratio between the first conical table 312 and the second conical table 314 is increased, and further, the rotating speed of the grinding wheel 311 is increased; on the other hand, the second adjusting rod 324 moves towards the direction close to the valve 100, so that the limiting block 323 can contact the second adjusting rod 324 after a shorter time, the grinding time is shortened, and the grinding effect is improved.
In some embodiments, the valve grinding tool further includes a second positioning element and a pressure sensor, in this embodiment, the second positioning element is a positioning wheel 327; the positioning wheel 327 is fixedly connected to the push rod 321; a pressure sensor is arranged on the positioning wheel 327 to monitor the pressure applied to the valve 100 by the positioning wheel 327; the push rod 321 is driven by the power mechanism 220 to move in a direction approaching the valve 100, and the pressure applied to the valve 100 by the positioning wheel 327 is adjusted by the pressure sensor.
In some embodiments, the valve grinding tool further includes a power mechanism 220, and the push rod 321 is capable of moving relative to the latch 230 under the driving of the power mechanism 220, and is capable of rotating under the driving of the power mechanism 220.
In some embodiments, the grinding wheel 311 includes both a rough grinding wheel and a fine grinding wheel, and in the rough grinding stage, the rough grinding wheel is used to increase the grinding time by reducing the grinding speed, so that the grinding effect is ensured, and meanwhile, the heat generation of the valve 100 and the grinding wheel is reduced, so that the possibility of uneven grinding of the surface of the valve 100 and damage of the grinding wheel 311 are reduced; in the fine grinding stage, a fine grinding wheel is adopted, and grinding time is shortened by increasing grinding speed, so that grinding efficiency is improved.
In some embodiments, the jaws 230 are in the form of four-jaw chucks, and the jaws 230 are configured to hold the valve 100.
It will be appreciated that the jaws 230 may also take the form of a three-jaw chuck, a pneumatic collet, or a hydraulic collet to grip the valve 100.
With reference to the above embodiments, the usage principle and the working process of the embodiments of the present invention are as follows:
for ease of description, the workpiece to be ground will be designated as the valve 100.
The valve grinding tool includes a machining table 200 and a grinding device 300. The processing table 200 comprises a base 210, a power mechanism 220 and jaws 230, wherein the power mechanism 220 is fixedly connected to the base 210; the jaws 230 are slidably disposed on the base 210, and the jaws 230 may be in the form of a three-jaw chuck, a four-jaw chuck, a pneumatic collet, or a hydraulic collet, and the jaws 230 are used to hold the valve 100.
The grinding devices 300 have 2 sets, which are symmetrically arranged about the push rod 321, and the two sets of grinding devices 300 are connected to the push rod 321 in the same manner, and for convenience of description, only one set of grinding device 300 will be described.
The grinding device 300 comprises a grinding assembly 310 and a positioning assembly 320, wherein the positioning assembly 320 is used for determining the end position of the valve 100, and the grinding assembly 310 is used for grinding the valve 100; the grinding component 310 comprises a grinding wheel 311, a first conical table 312, a driving wheel 313, a second conical table 314, a first pressure spring, a second pressure spring, a first adjusting rod 315, a limiting ring 316, an adjusting nut 317, a positioning block 318 and a connecting seat 319; the polishing wheel 311 is rotatably disposed on the positioning block 318, the first truncated cone 312 is slidably connected to the polishing wheel 311, the first truncated cone 312 and the polishing wheel 311 rotate synchronously, and the polishing wheel 311 is used for polishing the valve 100; one end of the first pressure spring is fixedly connected to the positioning block 318, and the other end of the first pressure spring is abutted against the first truncated cone 312; the driving wheel 313 is rotatably connected to the positioning block 318, the second truncated cone 314 is slidably connected to the driving wheel 313, the second truncated cone 314 and the driving wheel 313 rotate synchronously, one end of the second pressure spring abuts against the second truncated cone 314, the other end of the second pressure spring is fixedly connected to the positioning block 318, the first truncated cone 312 and the second truncated cone 314 are always abutted under the action of the first pressure spring and the second pressure spring, and the first truncated cone 312 and the second truncated cone 314 are in friction transmission; one end of the first adjusting rod 315 is slidably sleeved on the second adjusting rod 324, while the other end thereof abuts on the second truncated cone 314 and passes through the groove on the positioning block 318 to abut on the limiting ring 316; one end of the limiting ring 316 is hinged to the push rod 321, and the other end of the limiting ring can be connected to the connecting seat 319 in a sliding and rotating manner; one end of the adjusting nut 317 is in threaded connection with the push rod 321, and the other end of the adjusting nut 317 is rotatably connected to the connecting seat 319; the positioning block 318 is slidably provided on the push rod 321.
The rotation of the push rod 321 drives the driving wheel 313 to revolve around the axis of the push rod 321 while rotating around the axis thereof, the rotation of the driving wheel 313 drives the second truncated cone 314 to rotate, the rotation of the second truncated cone 314 drives the first truncated cone 312 to rotate, and the rotation of the first truncated cone 312 drives the grinding wheel 311 to grind the valve 100.
The positioning assembly 320 comprises a push rod 321, an adjusting ring 322, a limiting block 323, a second adjusting rod 324, a pushing ring 325, a connecting rod 326 and a positioning wheel 327; the push rod 321 is driven by the power mechanism 220 to move towards the direction close to the jaw 230 on one hand, and to rotate under the driving of the power mechanism 220 on the other hand (the power mechanism 220 may adopt a hydraulic rod and a motor, one end of the push rod 321 is fixedly connected to the motor, the motor is driven by the hydraulic rod to move towards the direction close to the jaw 230, and the push rod 321 is driven by the motor to rotate); the adjusting ring 322 is sleeved on the push rod 321, one end of the adjusting ring is connected with the base 210 through an expansion link 3221, so that the adjusting ring 322 can only slide relative to the push rod 321 and cannot rotate, and the adjusting ring 322 is in threaded fit with the push rod 321; the limiting block 323 is inserted in the groove of the adjusting ring 322, the rotation of the push rod 321 drives the limiting block 323 to rotate synchronously, and the limiting block 323 can rotate relative to the adjusting ring 322 and move axially synchronously with the adjusting ring 322; the second adjusting rod 324 is slidably sleeved in the push rod 321; the push collar 325 is slidably disposed on the push rod 321, and the rotation of the push rod 321 drives the push collar 325 to rotate synchronously, so that the push collar 325 can slide relatively to the push rod 321 under the driving of the hydraulic cylinder; one end of the connecting rod 326 is hinged on the pushing ring 325, and the other end is hinged on the positioning block 318; the positioning wheels 327 are provided with 2 sets, and are all fixedly connected to the push rod 321 and symmetrically arranged with respect to the push rod 321, and a pressure sensor is provided on the positioning wheel 327 for monitoring the pressure applied by the positioning wheel 327 to the valve 100.
The rotation of the push rod 321 drives the adjusting ring 322 to move towards the direction close to the valve 100, the adjusting ring 322 drives the limiting block 323 to move synchronously, and when the limiting block 323 contacts the second adjusting rod 324, the push rod 321 stops rotating, and the polishing is finished.
Preparing before polishing, and clamping one end of the valve 100 through a clamping jaw 230; the push rod 321 is driven by the power mechanism 220 to move towards the valve 100, and the pressure applied to the valve 100 by the positioning wheel 327 is adjusted by the pressure sensor (the contact pressure is large during rough grinding and small during fine grinding); the pushing ring 325 is driven by the hydraulic cylinder to slide relative to the pushing rod 321 (in a direction close to the valve 100), and the driving wheel 313 is driven by the connecting rod 326 to abut against the inner circumferential wall surface of the valve 100, so that the valve 100 with different diameters can be adapted.
Under the drive of the connecting rod 326, the positioning block 318 slides relative to the push rod 321 according to the diameter of the valve 100: when the diameter of the valve 100 is larger, the positioning block 318 moves in a direction away from the push rod 321, and the first adjusting rod 315 is driven to move left under the guidance of the limiting ring 316, so that the second conical table 314 moves left, the transmission ratio between the first conical table 312 and the second conical table 314 is reduced, the rotating speed of the polishing wheel 311 is reduced, the polishing time is prolonged, and the polishing effect is improved; when the diameter of the valve 100 is smaller, the positioning block 318 moves towards the direction close to the push rod 321, and the first adjusting rod 315 is driven to move right under the guidance of the limiting ring 316, so that the second conical table 314 moves right, the transmission ratio between the first conical table 312 and the second conical table 314 is increased, the rotating speed of the grinding wheel 311 is increased, the grinding time is shortened, and the grinding efficiency is improved.
In the rough grinding stage or when grinding a valve 100 with a small diameter, the adjusting nut 317 is manually adjusted to move towards the direction close to the valve 100 to drive the limiting ring 316 to rotate, so that the first adjusting rod 315 moves towards the direction close to the valve 100, on one hand, the second conical table 314 moves towards the direction close to the valve 100, the transmission ratio between the first conical table 312 and the second conical table 314 is reduced, and further the rotating speed of the grinding wheel 311 is reduced; on the other hand, the second adjusting rod 324 moves towards the direction close to the valve 100, so that the limiting block 323 can contact the second adjusting rod 324 after a longer time, the polishing time of the polishing wheel 311 is increased, the polishing effect of the polishing wheel 311 is ensured, meanwhile, the heat generated by the valve 100 and the polishing wheel 311 is reduced, and the possibility of uneven surface polishing of the valve 100 and damage to the polishing wheel 311 is reduced. The push rod 321 is driven to rotate around the axis of the push rod 321 by the power mechanism 220, the rotation of the push rod 321 on one hand drives the driving wheel 313 to revolve around the axis of the push rod 321 while rotating around the axis of the push rod, the rotation of the driving wheel 313 drives the second truncated cone 314 to rotate, the second truncated cone 314 rotates to drive the first truncated cone 312 to rotate, and the first truncated cone 312 rotates to drive the grinding wheel 311 to grind the valve 100; on the other hand, the adjusting ring 322 is driven to move towards the direction close to the valve 100, the adjusting ring 322 drives the limiting block 323 to move synchronously, and when the limiting block 323 contacts the second adjusting rod 324, the push rod 321 stops rotating, and the polishing is finished.
In the fine grinding stage, the pushing ring 325 is driven by the hydraulic cylinder to slide relative to the push rod 321 (in a direction away from the valve 100), the driving wheel 313 is driven by the connecting rod 326 to no longer abut against the inner circumferential wall surface of the valve 100, and the push rod 321 is driven by the power mechanism 220 to move in a direction away from the valve 100 until the push rod moves to the initial position, and the adjusting ring 322 moves to the initial position; the polishing wheel 311 is replaced manually (fine polishing wheel: the polishing protrusions or polishing particles on the polishing wheel are smaller, so that the polishing is finer), the adjusting nut 317 is reset manually, the pushing ring 325 slides relative to the push rod 321 (in a direction close to the valve 100) under the driving of the hydraulic cylinder, the driving wheel 313 abuts against the inner circumferential wall surface of the valve 100 under the driving of the connecting rod 326, the push rod 321 rotates around the axis of the push rod 321 under the driving of the power mechanism 220, and the polishing wheel 311 is driven to polish the valve 100 finely.
When the valve 100 with a large diameter is polished, the adjusting nut 317 is manually adjusted to move towards the direction away from the valve 100, so that the limiting ring 316 is driven to rotate, the first adjusting rod 315 moves towards the direction away from the valve 100, on one hand, the second conical table 314 moves towards the direction away from the valve 100, so that the transmission ratio between the first conical table 312 and the second conical table 314 is increased, and further, the rotating speed of the polishing wheel 311 is increased; on the other hand, the second adjusting rod 324 moves towards the direction close to the valve 100, so that the limiting block 323 can contact the second adjusting rod 324 within a shorter time, the grinding time of the grinding wheel 311 is shortened, and the grinding effect of the grinding wheel 311 is ensured. The push rod 321 is driven to rotate around the axis of the push rod 321 by the power mechanism 220, the rotation of the push rod 321 on one hand drives the driving wheel 313 to revolve around the axis of the push rod 321 while rotating around the axis of the push rod, the rotation of the driving wheel 313 drives the second truncated cone 314 to rotate, the second truncated cone 314 rotates to drive the first truncated cone 312 to rotate, and the first truncated cone 312 rotates to drive the grinding wheel 311 to grind the valve 100; on the other hand, the adjusting ring 322 is driven to move towards the direction close to the valve 100, the adjusting ring 322 drives the limiting block 323 to move synchronously, and when the limiting block 323 contacts the second adjusting rod 324, the push rod 321 stops rotating, and polishing is finished.
After polishing is finished, the pushing ring 325 is driven by the hydraulic cylinder to slide relative to the push rod 321 (in a direction away from the valve 100), the driving wheel 313 is driven by the connecting rod 326 to no longer abut against the inner circumferential wall surface of the valve 100, the push rod 321 is driven by the power mechanism 220 to move in a direction away from the valve 100 until the push rod moves to the initial position, the adjusting ring 322 moves to the initial position, the polished valve 100 is taken down, and then the polishing wheel 311 (rough polishing wheel) is replaced to polish the next group of valves 100.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a valve grinding frock which characterized in that includes:
a processing table;
the clamping jaw is used for fixing a workpiece;
the grinding wheel is used for grinding the workpiece, the rotating speed of the grinding wheel is V, and the diameter of the workpiece is D;
the rotational speed V of the grinding wheel is inversely related to the diameter D of the workpiece.
2. The valve grinding tool according to claim 1, further comprising a pushing member, a driving wheel, a first positioning member, a first transmission member, a second transmission member, a first elastic member, a second elastic member, a first limiting member and a first adjusting member, wherein the pushing member is slidably and rotatably arranged on the machining table; the first positioning piece is slidably arranged on the pushing piece; the grinding wheel can be rotatably arranged on the first positioning piece, and the first transmission piece can be slidably arranged on the grinding wheel; one end of the first elastic piece is fixedly connected to the first positioning piece, and the other end of the first elastic piece is abutted against the first transmission piece; the driving wheel can be rotatably arranged on the first positioning piece, and the second transmission piece can be slidably arranged on the driving wheel; one end of the second elastic piece is fixedly arranged on the first positioning piece, and the other end of the second elastic piece abuts against the second transmission piece; the first adjusting piece is slidably arranged on the first positioning piece and abutted against the second transmission piece, and the first adjusting piece can move along the first limiting piece; the second transmission piece moves to drive the first transmission piece to move, and the first transmission piece drives the polishing wheel to polish the workpiece.
3. The valve grinding tool of claim 2, further comprising an ejector slidably disposed on the pushing member and a first connector rotatably disposed on the first positioning member at one end thereof.
4. The valve grinding tool of claim 3, further comprising a hydraulic cylinder, wherein the hydraulic cylinder provides driving force for movement of the ejector.
5. The valve grinding tool of claim 2, further comprising a second adjusting member, a third adjusting member, a second limiting member and a telescopic member, wherein the second adjusting member is sleeved on the pushing member, and the second adjusting member is detachably connected with the pushing member; the second limiting piece is arranged on the second adjusting piece, and the movement of the pushing piece drives the second limiting piece to move; one end of the telescopic piece is fixedly arranged on the processing table, and the other end of the telescopic piece is arranged on the second adjusting piece in a sliding manner; the third adjusting member is slidably disposed on the pushing member.
6. The valve grinding tool according to claim 5, further comprising a fourth adjusting member and a second connecting member, wherein one end of the first limiting member is rotatably disposed on the pushing member, and the other end of the first limiting member is rotatably and slidably disposed on the second connecting member; the second connecting piece is rotatably arranged on the fourth adjusting piece; the fourth adjusting member is detachably provided on the pushing member.
7. The valve grinding tool of claim 2, further comprising a second positioning member and a pressure sensor, wherein the second positioning member is fixedly arranged on the pushing member, and the pressure sensor is fixedly arranged on the second positioning member.
8. The valve grinding tool of claim 2, further comprising a power mechanism, wherein the power mechanism provides a driving force for the movement of the pushing member.
9. The valve grinding tool of claim 1, wherein the grinding wheels include a rough grinding wheel and a finish grinding wheel.
10. The valve grinding tool of claim 1, wherein the jaws are four-jaw chucks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211082064.1A CN115179127A (en) | 2022-09-06 | 2022-09-06 | Valve grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211082064.1A CN115179127A (en) | 2022-09-06 | 2022-09-06 | Valve grinding tool |
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| Publication Number | Publication Date |
|---|---|
| CN115179127A true CN115179127A (en) | 2022-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211082064.1A Pending CN115179127A (en) | 2022-09-06 | 2022-09-06 | Valve grinding tool |
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| Country | Link |
|---|---|
| CN (1) | CN115179127A (en) |
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| CN116276388A (en) * | 2023-04-04 | 2023-06-23 | 山东富瑞工贸有限公司 | Valve sealing surface polishing equipment and process |
| CN116748968A (en) * | 2023-08-16 | 2023-09-15 | 南京亚兴联能源有限公司 | Grinding device and grinding method for bearing machining |
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| CN116748968A (en) * | 2023-08-16 | 2023-09-15 | 南京亚兴联能源有限公司 | Grinding device and grinding method for bearing machining |
| CN116748968B (en) * | 2023-08-16 | 2023-11-28 | 南京亚兴联能源有限公司 | Grinding device and grinding method for bearing machining |
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Application publication date: 20221014 |