CN107160266B - Valve core grinding device for small valve - Google Patents
Valve core grinding device for small valve Download PDFInfo
- Publication number
- CN107160266B CN107160266B CN201710495864.9A CN201710495864A CN107160266B CN 107160266 B CN107160266 B CN 107160266B CN 201710495864 A CN201710495864 A CN 201710495864A CN 107160266 B CN107160266 B CN 107160266B
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- China
- Prior art keywords
- cutter
- grinding
- valve core
- sleeve
- jacket
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- 235000000621 Bidens tripartita Nutrition 0.000 claims description 16
- 240000004082 Bidens tripartita Species 0.000 claims description 16
- 208000006637 fused teeth Diseases 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000005498 polishing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
- B24B15/04—Machines or devices designed for grinding seat surfaces; Accessories therefor on valve members
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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
- B24B27/0092—Grinding attachments for lathes or the like
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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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A valve core grinding device for a small valve belongs to the technical field of grinding or polishing devices. The small valve core grinding device comprises a rotary rod, a locking nail, a grinding cutter, a cutter jacket, a cutter movement limiting sleeve, a fixed seat assembly and an adjusting sleeve; the rotating rod and the locking nail are used for clamping the workpiece and providing rotating power for the workpiece; the grinding cutter is of an elastic grinding sleeve structure, sleeved outside the workpiece and assembled with the cutter jacket in an interference fit manner; the inner wall of the cutter jacket is of a conical surface structure, a threaded hole matched with the adjusting sleeve is formed in the left end of the cutter jacket, and the cutter jacket is sleeved in the cutter movement limiting sleeve in a clearance fit mode; the fixed seat assembly rotating rod is assembled; the right side end of the adjusting sleeve is assembled with a threaded hole of the cutter jacket through an external thread, and the right end face of the adjusting sleeve is contacted with the grinding cutter. The invention avoids the problem of drum type on the outer surface of the valve core after grinding, and achieves the purpose of improving the grinding quality of the valve core workpiece and the sealing performance of the valve.
Description
Technical Field
The invention relates to a valve core grinding device, in particular to a valve core grinding device with smaller axial size, belonging to the technical field of grinding or polishing devices.
Background
The valve is a device for controlling the direction, pressure and flow of fluid in a fluid system, and generally consists of a valve core and a valve seat, and has a sealing effect through the matching of the contact surfaces of the valve core and the valve seat, so that the valve core and the valve seat have high requirements on the smoothness of the sealing contact surfaces. In order to ensure the reliability of the valve operation, the contact surface of the valve core and the valve seat needs to be overhauled and ground after the valve is used for a certain time.
As shown in figure 1, a small valve core 1 applied to precision instruments and equipment is provided, an outer cylindrical surface 1-1 of the small valve core is a sealing contact surface matched with a valve seat, and cross grooves 1-2 and tip holes 1-3 are respectively arranged on two end surfaces of the small valve core. When the valve core 1 of the small valve is maintained and ground, a traditional grinding mode is adopted to realize mutual yielding between a cutter and a workpiece, and particularly when the axial size of the workpiece is smaller, the radial size of the cutter is difficult to adjust, so that the stress on two end parts of the workpiece is larger, the outer cylindrical surface of the valve core after grinding is drum-shaped, and the sealing requirement of the valve is difficult to meet.
Disclosure of Invention
The invention provides a small valve core grinding device, which aims to prevent the problem of drum type appearance on the outer surface of a valve core after grinding by adjusting the radial dimension of a grinding tool, thereby achieving the purpose of improving the grinding quality of a valve core workpiece and the sealing performance of a valve.
The above object of the present invention is achieved by the following technical solutions:
a grinding device for a valve core of a small valve comprises a rotary rod, a locking nail, a grinding cutter, a cutter jacket, a cutter movement limiting sleeve, a fixed seat assembly and an adjusting sleeve; one end of the rotary rod is connected with a bench drill or a lathe spindle, the other end of the rotary rod is assembled with a cross groove on the end face of the valve core workpiece, the locking nail is arranged on the fixed seat assembly, and the center part of the locking nail is in floating fit with a center hole of the valve core workpiece; the grinding cutter is of an elastic grinding sleeve structure, sleeved outside the workpiece and assembled with the cutter jacket in an interference fit manner; the inner wall of the cutter jacket is of a conical surface structure, a threaded hole matched with the adjusting sleeve is formed in the left end of the cutter jacket, and the cutter jacket is sleeved in the cutter movement limiting sleeve in a clearance fit mode; the fixing seat assembly comprises a left screw sleeve, a bearing seat and a right screw sleeve, wherein the left screw sleeve and the bearing seat are sleeved at the left end and the right end of the cutter movement limiting sleeve, the right screw sleeve is assembled at the right end of the bearing seat, the inner ring of the bearing is assembled with the rotating rod, and the outer ring of the bearing is arranged in the bearing seat; the right side end of the adjusting sleeve is assembled with a threaded hole of the cutter jacket through an external thread, and the right end face of the adjusting sleeve is contacted with the grinding cutter.
According to the valve core grinding device for the small valve, the side wall of the grinding cutter is provided with the group of axial grooves, one end of each axial groove extends to the end face of the grinding cutter to form an opening structure, and the opening directions of two adjacent axial grooves are opposite.
The valve core grinding device of the small valve is characterized in that a spiral groove for storing grinding powder and guiding out grinding scraps is formed in the inner side wall of the grinding cutter.
The taper of the conical surface structure of the inner wall of the cutter jacket of the small valve core grinding device is 2 degrees.
Above-mentioned valve case grinds utensil still is equipped with the double-toothed sword that is used for screwing the adjustment sleeve, double-toothed sword that is equipped with action bars and two symmetrical arrangement's sword tooth, is equipped with a set of recess with double-toothed sword tooth complex on the left side terminal surface of adjustment sleeve correspondingly, the recess is radial distribution.
The small valve core grinding device is further provided with the adjusting sleeve limiting jackscrew for preventing the adjusting sleeve from unscrewing and falling off, the adjusting sleeve limiting jackscrew is arranged on the left threaded sleeve of the fixing seat assembly in a threaded connection mode, and the screwing quantity of the adjusting sleeve is limited through the tail end of the adjusting sleeve limiting jackscrew.
The small valve core grinding device is characterized in that four groups of operation handle blocks are arranged in the middle of the cutter jacket, and are fixed on the side wall of the cutter jacket through screws and uniformly distributed along the circumferential direction of the outer cylindrical surface of the cutter jacket; correspondingly, four groups of rectangular holes are formed in the middle of the cutter movement limiting sleeve, and an operating handle block on the cutter clamping sleeve penetrates through the rectangular holes.
Above-mentioned valve case grinds utensil, set up a set of double-toothed cutter on the left swivel nut terminal surface in the fixing base subassembly and pass hole and the spacing jackscrew pilot hole of adjusting sleeve, double-toothed cutter passes the hole and is the circular-arc slot hole along the circumferencial direction equipartition, and double-toothed cutter passes hole and the spacing jackscrew pilot hole interval arrangement of adjusting sleeve.
The valve core grinding tool of the small valve is made of cast iron.
The rotary rod of the valve core grinding device of the small valve is connected with the main shaft of the bench drill or the lathe through the flexible shaft.
The invention relates to a small valve core grinding tool, which clamps a workpiece through a rotating rod and a locking nail, and is connected with a bench drill or a lathe spindle through a flexible shaft by the rotating rod so as to provide rotating power for the workpiece; the invention is suitable for grinding valve cores with smaller axial sizes, the grinding cutter is designed into an elastic grinding sleeve structure, the inner wall of the cutter jacket is correspondingly designed into a conical surface structure, and the left end of the cutter jacket is provided with a threaded hole matched with the adjusting sleeve, so that the grinding cutter can be pushed to slide left and right by screwing in or screwing out the adjusting sleeve in the threaded hole of the cutter jacket, and the radial size of the grinding cutter of the elastic grinding sleeve structure is changed under the action of the pressure of the inner wall of the conical surface of the cutter jacket. Therefore, the invention can avoid the problem of drum shape on the outer surface of the valve core after grinding by adjusting the radial size of the grinding cutter, thereby achieving the purpose of improving the grinding quality of the valve core workpiece and the sealing performance of the valve.
Drawings
FIG. 1 is a schematic diagram of a valve core structure of a small valve;
FIG. 2 is a schematic diagram of a small valve core grinding tool;
FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 2;
FIG. 4 is a schematic view of the abrasive tool configuration;
FIG. 5 is a schematic cross-sectional view of a tool holder;
FIG. 6 is a schematic view of a cross-sectional structure of a left threaded sleeve;
FIG. 7 is a left side view of FIG. 6;
FIG. 8 is a schematic cross-sectional view of an adjustment sleeve;
FIG. 9 is a left side view of FIG. 8;
FIG. 10 is a schematic cross-sectional view of a tool movement stop collar;
FIG. 11 is a schematic view of the sectional structure B-B in FIG. 10;
FIG. 12 is a schematic view of a double tooth knife;
FIG. 13 is a schematic view of the cross-sectional structure of C-C in FIG. 12;
fig. 14 is a schematic view of the working state of the small valve core grinding tool.
The reference numerals in the drawings are as follows: 1. 1-1 parts of small valve core, 1-2 parts of cross groove, 1-3 parts of tip hole, 2 parts of small valve core grinding device, 2-1 parts of locking nail, 2-2 parts of left screw sleeve, 2-2-1 parts of adjusting sleeve limit screw assembly hole, 2-2-2 parts of double-tooth unlocking knife passing hole, 2-3 parts of adjusting sleeve, 2-3-1 parts of external screw thread, 2-3-2 parts of groove, 2-4 parts of grinding knife, 2-4-1 parts of axial groove, 2-4-2 parts of spiral groove, 2-5 parts of knife jacket, 2-5-1 parts of conical surface structure, 2-5-2 parts of threaded hole, 2-6 parts of operating handle block, 2-7 parts of knife moving limit sleeve, 2-7-1 parts of rectangular hole, 2-8 parts of bearing sleeve, 2-9 parts of bearing, 2-10 parts of right screw sleeve, 2-11 parts of rotating rod, 2-12 parts of screw, 2-bolt, 2-13 parts of adjusting sleeve limit screw sleeve, 2-14 parts of double-tooth unlocking knife, 2-14 parts of flexible shaft, 2-14 parts of knife, 2-3 parts of flexible shaft.
Detailed Description
The invention is further illustrated below in connection with specific examples:
referring to fig. 2, 3, 4, 5 and 8, the invention relates to a grinding device for a valve core with smaller axial size, which comprises a rotary rod 2-11, a locking pin 2-1, a grinding cutter 2-4, a cutter jacket 2-5, a cutter moving limiting sleeve 2-7, a fixed seat assembly and an adjusting sleeve 2-3; one end of the rotating rod 2-11 is connected with a bench drill or a lathe spindle through a flexible shaft 3, the other end of the rotating rod is assembled with a cross groove 1-2 on the end face of a valve core workpiece, the locking nail 2-1 is arranged on the fixed seat assembly, the center position of the locking nail is in floating fit with a center hole 1-3 of the valve core workpiece, and the rotating rod 2-11 and the locking nail 2-1 clamp the workpiece and provide rotating power for the workpiece; the grinding cutter 2-4 is of an elastic grinding sleeve structure, sleeved outside a workpiece and assembled with the cutter jacket 2-5 in an interference fit manner; the inner wall of the cutter jacket 2-5 is of a conical surface structure 2-5-1, the taper is 2 degrees, a threaded hole 2-5-2 matched with the adjusting sleeve 2-3 is formed in the left end of the cutter jacket, and the cutter jacket 2-5 is sleeved in the cutter moving limiting sleeve 2-7 in a clearance fit mode; the fixing seat assembly comprises a left threaded sleeve 2-2, a bearing 2-9, a bearing seat 2-8 and a right threaded sleeve 2-10, wherein the left threaded sleeve 2-2 and the bearing seat 2-8 are sleeved at the left end and the right end of a cutter movement limit 2-7, the right threaded sleeve 2-10 is assembled at the right end of the bearing seat 2-8, the inner ring of the bearing 2-9 is assembled with a rotating rod 2-11, and the bearing outer ring is arranged in the bearing seat 2-8; the right side end of the adjusting sleeve 2-3 is assembled with the threaded hole 2-5-2 of the cutter jacket through the external thread 2-3-1, the right end face of the adjusting sleeve is contacted with the grinding cutter 2-4, and the grinding cutter 2-4 can be pushed to slide left and right by screwing in or screwing out the adjusting sleeve 2-3 in the threaded hole 2-5-2 of the cutter jacket.
Referring to fig. 4, in the grinding tool 2 for a valve core of the small valve of the present invention, the grinding tool 2-4 is made of cast iron, a set of axial grooves 2-4-1 are formed on the side wall of the grinding tool, the axial grooves 2-4-1 are open structures with one ends extending to the end face of the grinding tool, and the opening directions of two adjacent axial grooves are opposite. When the adjusting sleeve 2-3 pushes the grinding cutter 2-4 to slide left and right, the radial size of the grinding cutter 2-4 of the elastic grinding sleeve structure can be changed under the action of the pressure of the inner wall of the conical surface of the cutter jacket 2-5. On the inner side wall of the grinding cutter 2-4, a spiral groove 2-4-2 for storing grinding powder and guiding out grinding dust is provided.
Referring to fig. 2, 6, 7, 12 and 13, in the small valve core grinding device 2 of the present invention, the small valve core grinding device 2 is further provided with a double-tooth cutter 2-14 for screwing the adjusting sleeve 2-3, the double-tooth cutter 2-14 is provided with an operating rod 2-14-1 and two cutter teeth 2-14-2 symmetrically arranged, and correspondingly, a group of grooves 2-3-2 matched with the double-tooth cutter teeth 2-14-2 are arranged on the left end face of the adjusting sleeve 2-3, and the grooves 2-3-2 are radially distributed.
Referring to fig. 2, in the small valve core grinding apparatus 2 of the present invention, the small valve core grinding apparatus 2 is further provided with an adjusting sleeve limiting jackscrew 2-13 for preventing the adjusting sleeve 2-3 from unscrewing and falling off, the adjusting sleeve limiting jackscrew 2-13 is mounted on the left screw sleeve 2-2 of the fixing seat assembly in a threaded connection manner, and the screwing amount of the adjusting sleeve 2-3 is limited by the tail end of the adjusting sleeve limiting jackscrew 2-13.
Referring to fig. 2, 3, 10 and 11, in the small valve core grinding device 2 of the present invention, four groups of operation handle blocks 2-6 are installed in the middle of the cutter jacket 2-5, the operation handle blocks 2-6 are fixed on the side wall of the cutter jacket 2-5 through screws 2-12, and are uniformly arranged along the circumferential direction of the outer cylindrical surface of the cutter jacket 2-5; correspondingly, four groups of rectangular holes 2-7-1 are formed in the middle of the cutter movement limiting sleeve 2-7, the operating handle block 2-6 penetrates through the rectangular holes 2-7-1, when a valve core workpiece is grinded, the valve core workpiece is driven to rotate by the rotating rod 2-11, an operator holds the operating handle block 2-6 to drive the grinding cutter 2-4 to move left and right, and the hole walls at two ends of the rectangular holes 2-7-1 are used for limiting the limit position of the left and right movement of the operating handle block 2-6.
Referring to fig. 6 and 7, in the small valve core grinding tool 2 of the present invention, a group of double-tooth cutter penetrating holes 2-2-2 and adjusting sleeve limiting jackscrew assembling holes 2-2-1 are formed in the end face of a left threaded sleeve 2-2 in the fixing seat assembly, the double-tooth cutter penetrating holes 2-2-2 are arc long holes uniformly distributed along the circumferential direction, and the double-tooth cutter penetrating holes 2-2-2 and the adjusting sleeve limiting jackscrew assembling holes 2-2-1 are arranged at intervals.
Referring to fig. 1 to 14, the invention is a small valve core grinding tool 2, which clamps a workpiece through a rotary rod 2-11 and a locking nail 2-1, and the rotary rod 2-11 is connected with a bench drill or a lathe spindle through a flexible shaft 3 to provide rotary power for the workpiece, a grinding cutter 2-4 and a cutter jacket 2-5 of the small valve core grinding tool 2 are assembled into a whole in an interference fit manner, and the cutter jacket 2-5 is sleeved in a cutter movement limiting sleeve 2-7 in a clearance fit manner, so that an operator can hold an operating handle to drive the grinding cutter 2-4 to move left and right in the cutter movement limiting sleeve 2-7, and the grinding of the small valve core 1 is realized through the cooperation of the rotary action of the workpiece and the axial feeding action of the cutter; according to the invention, the radial size of a grinding cutter is adjusted, so that the problem of drum type on the outer surface of a valve core after grinding is avoided, the grinding cutter 2-4 is designed into an elastic grinding sleeve structure, the inner wall of the cutter jacket 2-5 is correspondingly designed into a conical surface structure, a threaded hole 2-5-2 matched with the adjusting sleeve 2-3 is arranged at the left end of the cutter jacket 2-5, when the small valve core 1 with smaller axial size is subjected to grinding maintenance, the adjusting sleeve 2-3 can be screwed by a double-tooth unclamping cutter 2-14, so that the adjusting sleeve 2-3 is screwed into or screwed out of the threaded hole 2-5-2 of the cutter jacket 2-5, the grinding cutter 2-4 is pushed to slide left and right, and when the adjusting sleeve 2-3 is screwed into the threaded hole 2-5-2 of the cutter jacket 2-5, the grinding cutter 2-4 is pushed to slide rightwards, and the radial size of the grinding cutter 2-4 is reduced under the action of the pressure of the conical surface inner wall of the cutter jacket 2-5; when the adjusting sleeve 2-3 is unscrewed from the threaded hole 2-5-2 of the tool holder 2-5, the grinding tool 2-4 slides leftwards under the action of the pressure of the conical surface inner wall of the tool holder 2-5, and the radial size of the grinding tool 2-4 becomes larger.
Claims (10)
1. The small valve core grinding device is characterized in that the small valve core grinding device (2) comprises a rotating rod (2-11), a locking nail (2-1), a grinding cutter (2-4), a cutter jacket (2-5), a cutter movement limiting sleeve (2-7), a fixing seat assembly and an adjusting sleeve (2-3); one end of the rotating rod (2-11) is connected with a bench drill or a lathe spindle, the other end of the rotating rod is assembled with a cross groove (1-2) on the end face of the valve core workpiece, the locking nail (2-1) is arranged on the fixed seat assembly, and the tip part of the locking nail is in floating fit with a tip hole (1-3) of the valve core workpiece; the grinding cutter (2-4) is of an elastic grinding sleeve structure, sleeved outside the workpiece and assembled with the cutter jacket (2-5) in an interference fit manner; the inner wall of the cutter jacket (2-5) is of a conical surface structure (2-5-1), a threaded hole (2-5-2) matched with the adjusting sleeve (2-3) is formed in the left end of the cutter jacket, and the cutter jacket (2-5) is sleeved in the cutter moving limiting sleeve (2-7) in a clearance fit mode; the fixing seat assembly comprises a left screw sleeve (2-2), a bearing (2-9), a bearing seat (2-8) and a right screw sleeve (2-10), wherein the left screw sleeve (2-2) and the bearing seat (2-8) are sleeved at the left end and the right end of a cutter movement limiting sleeve (2-7), the right screw sleeve (2-10) is assembled at the right end of the bearing seat (2-8), the inner ring of the bearing (2-9) is assembled with a rotating rod (2-11), and the outer ring of the bearing is arranged in the bearing seat (2-8); the right side end of the adjusting sleeve (2-3) is assembled with a threaded hole (2-5-2) of the cutter jacket through an external thread (2-3-1), and the right end face of the adjusting sleeve is contacted with the grinding cutter (2-4).
2. The grinding tool for the valve core of the small valve according to claim 1, wherein a group of axial grooves (2-4-1) are formed in the side wall of the grinding tool (2-4), the axial grooves (2-4-1) are of an opening structure with one end extending to the end face of the grinding tool, and the opening directions of two adjacent axial grooves are opposite.
3. The small valve core grinding tool according to claim 2, wherein the inner side wall of the grinding cutter (2-4) is provided with a spiral groove (2-4-2) for storing grinding powder and guiding out grinding scraps.
4. A small valve core grinding tool according to claim 1 or 2 or 3, characterized in that the taper of the conical surface structure (2-5-1) of the inner wall of the tool holder (2-5) is 2 °.
5. The small valve core grinding tool according to claim 4, wherein the small valve core grinding tool (2) is further provided with a double-tooth cutter (2-14) for screwing the adjusting sleeve (2-3), the double-tooth cutter (2-14) is provided with an operating rod (2-14-1) and two symmetrically arranged cutter teeth (2-14-2), a group of grooves (2-3-2) matched with the double-tooth cutter teeth (2-14-2) are correspondingly arranged on the left end face of the adjusting sleeve (2-3), and the grooves (2-3-2) are radially distributed.
6. The small valve spool grinding apparatus according to claim 5, wherein the small valve spool grinding apparatus (2) is further provided with an adjusting sleeve limiting jackscrew (2-13) for preventing the adjusting sleeve (2-3) from unscrewing and falling off, the adjusting sleeve limiting jackscrew (2-13) is mounted on the left threaded sleeve (2-2) of the fixed seat assembly in a threaded connection manner, and the rotation amount of the adjusting sleeve (2-3) is limited by the tail end thereof.
7. The small valve core grinding tool according to claim 6, wherein four groups of operation handle blocks (2-6) are installed in the middle of the cutter jacket (2-5), the operation handle blocks (2-6) are fixed on the side wall of the cutter jacket (2-5) through screws (2-12), and are uniformly arranged along the circumferential direction of the outer cylindrical surface of the cutter jacket (2-5); correspondingly, four groups of rectangular holes (2-7-1) are formed in the middle of the cutter movement limiting sleeve (2-7), and the operating handle block (2-6) penetrates through the rectangular holes (2-7-1).
8. The small valve core grinding tool according to claim 7, wherein a group of double-tooth cutter penetrating holes (2-2-2) and adjusting sleeve limiting jackscrew assembling holes (2-2-1) are formed in the end face of the left threaded sleeve (2-2) in the fixed seat assembly, the double-tooth cutter penetrating holes (2-2) are arc long holes uniformly distributed along the circumferential direction, and the double-tooth cutter penetrating holes (2-2-2) and the adjusting sleeve limiting jackscrew assembling holes (2-2-1) are arranged at intervals.
9. The small valve core grinding tool according to claim 8, wherein the grinding tool (2-4) is made of cast iron.
10. The small valve core grinding tool according to claim 9, characterized in that the rotary rod (2-11) is connected with the spindle of a bench drill or lathe by means of a flexible shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495864.9A CN107160266B (en) | 2017-06-26 | 2017-06-26 | Valve core grinding device for small valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495864.9A CN107160266B (en) | 2017-06-26 | 2017-06-26 | Valve core grinding device for small valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107160266A CN107160266A (en) | 2017-09-15 |
| CN107160266B true CN107160266B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710495864.9A Active CN107160266B (en) | 2017-06-26 | 2017-06-26 | Valve core grinding device for small valve |
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| CN (1) | CN107160266B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444771B (en) * | 2018-09-26 | 2022-01-04 | 北京航天控制仪器研究所 | Variable-aperture atomic air chamber fixing sleeve based on CPT magnetometer |
| CN109571233B (en) * | 2019-01-23 | 2023-08-11 | 中国科学院光电技术研究所 | High-precision excircle grinding tool for shaft parts |
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| CN207027162U (en) * | 2017-06-26 | 2018-02-23 | 中国人民解放军第五七二一工厂 | A kind of minor valve valve element lapping apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6681143B2 (en) * | 2002-03-19 | 2004-01-20 | Siemens Diesel Systems Technology | Match grinding of spool to control valve body of oil activated fuel injector |
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- 2017-06-26 CN CN201710495864.9A patent/CN107160266B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333488Y (en) * | 1998-06-25 | 1999-08-18 | 张振峰 | Portable valve grinder |
| CN202225046U (en) * | 2011-09-19 | 2012-05-23 | 天津精通控制仪表技术有限公司 | Special clamping fixture for grinding valve core of V-shaped globe valve |
| CN113068425B (en) * | 2012-12-13 | 2015-12-23 | 中国人民解放军第五七二0工厂 | Grinding method and device for cylindrical valve core of servo valve |
| CN105729270A (en) * | 2016-02-29 | 2016-07-06 | 苏州纽威阀门股份有限公司 | Grinding mechanism for valve core and valve seat |
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| CN207027162U (en) * | 2017-06-26 | 2018-02-23 | 中国人民解放军第五七二一工厂 | A kind of minor valve valve element lapping apparatus |
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| CN107160266A (en) | 2017-09-15 |
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