CN117532421A - Quick locking structure and locking method for double-sided grinding core rod - Google Patents
Quick locking structure and locking method for double-sided grinding core rod Download PDFInfo
- Publication number
- CN117532421A CN117532421A CN202311727775.4A CN202311727775A CN117532421A CN 117532421 A CN117532421 A CN 117532421A CN 202311727775 A CN202311727775 A CN 202311727775A CN 117532421 A CN117532421 A CN 117532421A
- Authority
- CN
- China
- Prior art keywords
- grinding
- core rod
- hole
- rod
- jacket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 80
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000741 silica gel Substances 0.000 claims description 12
- 229910002027 silica gel Inorganic materials 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 abstract description 14
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 208000034656 Contusions Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 208000034526 bruise Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B24B5/40—Single-purpose machines or devices for grinding tubes internally
-
- 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
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of grinding tools, in particular to a double-sided grinding core rod quick locking structure and a locking method, wherein the double-sided grinding core rod quick locking structure comprises a grinding core rod and a quick locking structure, the grinding core rod is provided with a first through hole penetrating through the top and the bottom of the grinding core rod, and the quick locking structure comprises a first base arranged at the bottom of the grinding core rod and a first movable base detachably arranged at the top of the grinding core rod; the first base is movably provided with a first jacket, and the first jacket is provided with first steel balls; the first movable seat is provided with a first connecting rod, and the first connecting rod is provided with a first buckling groove for buckling the first steel ball. Compared with the prior art, on one hand, the quick locking structure is convenient, so that time and labor are saved when operators feed and discharge; on the other hand, the problem that the metal pipe which is finished with polishing operation is not scratched, bruised and the like due to shaking can be prevented from shaking caused by the fact that an operator tightens the nut, the precision of the polished metal pipe is guaranteed to meet the design requirement, and the polishing efficiency and reliability are improved.
Description
Technical Field
The invention relates to the technical field of grinding tools, in particular to a double-sided grinding rod quick locking structure and a locking method.
Background
In the field of precision machinery manufacturing, for some metal pipes, once a pipe inner surface with high precision is required, a grinding core rod is required to extend into the pipe, and the pipe inner surface is ground, so that the smoothness and cylindricity of the pipe inner surface are improved, and parts such as a shaft and the like can be conveniently assembled in a follow-up fit manner.
Please refer to fig. 1, which is a schematic diagram of a prior art grinding rod; when the grinding core rod of the type is used, nuts 200 at the front end and the tail end of the grinding core rod 100 are required to be disassembled, then the grinding core rod 100 is inserted into a metal pipe, the two ends of the grinding core rod 100 are respectively exposed at the front end and the tail end of the metal pipe, and the positions of the metal pipe on the grinding core rod 100 can be limited by screwing the nuts 200 on the grinding core rod 100; finally, the grinding rod 100 is arranged on a grinding device, and the grinding device can drive the grinding rod 100 to rotate, so that the grinding operation on the inner surface of the metal rod is realized.
The inventor finds that the limit of the metal pipe can be completed only by using nuts to be screwed and fixed at the two ends of the grinding core rod in actual production operation; therefore, when the metal rod is fed and discharged from the grinding core rod, the nut is required to be manually screwed by an operator to be loosened, and the locking mode is time-consuming and labor-consuming, so that the working efficiency of the grinding process is seriously affected; meanwhile, as the nuts at the two ends of the grinding core rod are required to be disassembled to enable the metal tube to be fed from the grinding core rod, in the process of loosening the nuts, the problem that the metal tube shakes in the process of rotating the nuts is unavoidable due to the lack of support of the metal tube, once the metal tube shakes, the inner surface of the metal tube is scratched by the grinding core rod, so that the metal tube is scratched, bruise and the like, and the polishing precision of the metal tube is seriously affected.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the drawbacks of the prior art, and its main objective is to provide a double-sided grinding rod quick locking structure, which effectively solves the technical drawbacks of time and effort consumption and metal pipe scratching caused by the locking mode of the grinding rod in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the double-sided grinding core rod quick locking structure comprises a grinding core rod and a quick locking structure, wherein the grinding core rod is provided with a first perforation, and the first perforation penetrates through the top and the bottom of the grinding core rod; the quick locking structure comprises a first base arranged at the bottom of the grinding core rod and a first movable seat detachably arranged at the top of the grinding core rod; the first base is movably provided with a first jacket, and the first jacket is provided with first steel balls; the first movable seat is provided with a first connecting rod, and the first connecting rod is provided with a first buckling groove for buckling in the first steel ball; when the first connecting rod passes through the first through hole and is inserted into the first jacket, the first steel ball can be buckled into the first buckling groove to lock the first movable seat; when the first jacket moves downwards relative to the first base, the first steel balls can be acted to withdraw from the first buckling grooves to unlock the first movable base.
The beneficial effect of the quick lock structure of two-sided mill core stick that this application provided lies in: when feeding and discharging the metal pipe, firstly inserting a grinding core rod into an inner hole of the metal pipe, then penetrating a first connecting rod through a first perforation and inserting into a first jacket, enabling a first steel ball to be buckled into a first buckling groove, fixing a first movable seat on the top of the grinding core rod, and limiting the position of the metal pipe on the grinding core rod by utilizing the first base and the first movable seat so as to finish feeding operation of the metal pipe; when the metal pipe is fed, the metal pipe can be taken out from the grinding core rod only by acting the first clamping sleeve to move downwards to push the first steel balls out of the first buckling grooves to unlock the first movable seat; compared with the prior art, the nut at the top and the bottom of the core rod is not required to be repeatedly loosened and tightened by operators; on one hand, the quick locking structure is convenient and fast, so that time and labor are saved when operators feed and discharge; on the other hand, because the tightness of the nut is not needed, the shaking caused by the tightness of the nut by an operator can be prevented, so that the problems of scratch, abrasion, bruise and the like of the metal pipe after the polishing operation is guaranteed not to occur due to shaking, the precision of the polished metal pipe is guaranteed to meet the design requirement, and the polishing efficiency and reliability are improved.
As a preferred embodiment: the first base is provided with a first cavity penetrating through the upper surface and the lower surface of the first base, and the top of the first cavity is provided with a first conical limiting surface; the first jacket is provided with a first conical limiting part matched with the first conical limiting surface, the top of the first conical limiting part is provided with a first jack, the side face of the first jacket is provided with a plurality of horizontal through grooves communicated with the first jack, and each horizontal through groove is movably provided with a first steel ball.
As a preferred embodiment: the bottom of the first jacket is provided with a second chamber, and the side surface of the first jacket is provided with a second limiting window communicated with the second chamber; the bottom of the first base is provided with a first limiting shaft, and the first limiting shaft is limited in the second limiting window; a second spring is arranged in the second installation cavity, one end of the second spring abuts against the top of the second cavity, and the other end of the second spring abuts against the first limiting shaft.
As a preferred embodiment: the first movable seat is provided with a stepped avoidance hole penetrating through the upper surface and the lower surface of the first movable seat, the stepped avoidance hole comprises a first avoidance through hole and a second avoidance through hole which are arranged up and down, and the diameter of the first avoidance through hole is larger than that of the second avoidance through hole; the top of head rod is provided with first bulge loop, and the diameter of first bulge loop is less than the diameter of first dodging the through-hole, is connected with first spring between first bulge loop and the first through-hole of dodging.
As a preferred embodiment: the cross section of the grinding core rod is square, first silica gel blocks are arranged at four corners of the grinding core rod, the outer surfaces of the first silica gel blocks are provided with first arc surfaces, and the first arc surfaces of the first silica gel blocks are overlapped on a first virtual circle; the left side and the right side of the grinding rod are movably provided with a first grinding block, the outer surface of the first grinding block is provided with a second arc-shaped surface, and the second arc-shaped surfaces are overlapped on a second virtual circle; when the first connecting rod passes through the first perforation, the two first grinding blocks can be simultaneously acted to move outwards, so that the diameter of a second virtual circle formed by the second arc-shaped surface is larger than that of the first virtual circle; when the first connecting rod exits the first perforation, the two first grinding blocks are displaced towards the center direction of the first perforation, so that the diameter of a second virtual circle formed by the second arc-shaped surface is smaller than that of the first virtual circle.
As a preferred embodiment: the left and right sides of mill core rod all is provided with first logical groove of dodging, and first logical groove of dodging runs through the lateral surface of mill core rod and communicates first perforation, and first grinding piece movable mounting is dodged with first logical inslot.
As a preferred embodiment: the first side of dodging the logical groove and facing first perforation is provided with first breach, and first grinding piece is provided with first butt convex part, is provided with first metal shrapnel between first breach and the first butt convex part.
As a preferred embodiment: the grinding core rod comprises a left rod body and a right rod body which are arranged together in a split mode, and first fixing rings are arranged at the tops of the left rod body and the right rod body; the bottoms of the left rod body and the right rod body are provided with first connecting convex parts, and the first connecting convex parts are provided with first external threads; the top of first base is provided with the first screw that supplies first connection convex part spiro union to connect.
As a preferred embodiment: the device further comprises a first supporting seat, a first supporting hole is formed in the upper surface of the first supporting seat, the first supporting hole is used for being inserted by the first base, and a first magnetic attraction component used for adsorbing downward displacement of the first jacket is arranged at the bottom of the first supporting hole.
The application also provides a locking method of the double-sided grinding core rod quick locking structure, which comprises the following steps:
a locking step, namely preparing a metal pipe to be polished, aligning an inner hole of the metal pipe with a grinding core rod, and inserting the grinding core rod into the inner hole of the metal pipe; inserting a first connecting rod into the first perforation from the top of the grinding core rod, and acting each first grinding block to move outwards to abut against the inner hole surface of the metal tube; when the first connecting rod passes through the bottom of the first perforation, the first jacket moves downwards under the action of the first connecting rod in the process of inserting the bottom of the first connecting rod into the first jack, and the first buckling groove and the first steel ball are positioned at the same height; releasing the acting force on the first connecting rod, and enabling the second spring to act on the first clamping sleeve to move upwards so that the first steel ball is buckled into the first buckling groove to complete locking;
an unlocking step, namely providing a first supporting seat, inserting a first movable seat into a first supporting hole of the first supporting seat, and enabling the grinding core rod to be vertically arranged; when the first movable seat is inserted into the first supporting hole, the first magnetic component at the bottom of the first supporting hole provides suction force for the first clamping sleeve, so that the first clamping sleeve is driven to displace downwards and the first steel balls are led to exit the first buckling groove; finally, the first movable seat is moved upwards, so that the first connecting rod sequentially exits the first jack and the first perforation, and the metal pipe can be moved upwards from the grinding core rod to be taken out.
Therefore, the double-sided grinding core rod quick locking structure provided by the application is utilized for loading and unloading the metal pipe, so that the operating efficiency of loading and unloading can be improved, meanwhile, the precision of the inner hole of the metal pipe after polishing is guaranteed to be in accordance with the design requirement, and the defect that scratches exist after polishing easily occurs to the metal pipe in the traditional technology is overcome.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a prior art grinding core rod;
fig. 2 is a schematic perspective view of a double-sided grinding rod quick locking structure according to an embodiment of the present application;
FIG. 3 is an exploded view of the double sided abrasive stick quick lock structure shown in FIG. 2;
FIG. 4 is a partial cross-sectional view of the double-sided wear rod quick lock structure of FIG. 2 at A;
FIG. 5 is a partial cross-sectional view of the double sided wear core rod quick lock structure shown in FIG. 2 at B;
FIG. 6 is a partial cross-sectional view of the double sided wear core rod quick lock structure of FIG. 2 at C;
FIG. 7 is a cross-sectional view at A-A of the double sided wear rod quick lock configuration shown in FIG. 6;
fig. 8 is a schematic structural view of the double-sided grinding rod quick locking structure and the first supporting seat shown in fig. 2.
Wherein, each reference sign in the figure:
10. grinding the core rod; 101. a left bar body; 102. a right bar body; 103. a first fixing ring; 104. a first connection protrusion; 11. a first perforation; 12. a first silicone block; 121. a first arcuate surface; 13. a first sanding block; 131. a second arcuate surface; 132. a first abutment protrusion; 133. a second guiding inclined surface; 14. the first avoidance through groove; 15. a first notch; 16. a first metal spring plate;
20. a first base; 21. a first jacket; 211. a first taper restriction portion; 212. a first jack; 213. a horizontal through groove; 214. a second chamber; 215. a second restriction window; 216. a second spring; 22. a first steel ball; 23. a first chamber; 231. a first tapered limiting surface; 24. a first restriction shaft;
30. a first movable seat; 31. a first connecting rod; 311. a first collar; 312. a first guiding inclined surface; 32. a first buckling groove; 33. the first avoidance through hole; 34. a second avoidance through hole; 35. a first spring;
40. a first support base; 41. a first support hole; 42. a first magnetic attraction member;
r1, a first virtual circle; r2, a second virtual circle.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
Referring to fig. 2 to 8, a description will now be given of a double-sided grinding rod quick locking structure according to an embodiment of the present application. The quick lock structure of two-sided mill core stick includes: the grinding rod 10 and the quick lock structure.
The mill 10 is provided with a first perforation 11, the first perforation 11 penetrating the top and bottom of the mill 10; the quick locking structure comprises a first base 20 and a first movable seat 30, wherein the first base 20 is connected to the bottom of the grinding core rod 10 in a threaded manner, and the first movable seat 30 is detachably arranged on the top of the grinding core rod 10; the first base 20 is movably provided with a first jacket 21, and the first jacket 21 is provided with first steel balls 22; the first movable seat 30 is provided with a first connecting rod 31, and the first connecting rod 31 is provided with a first buckling groove 32 for buckling the first steel ball 22; when the first connecting rod 31 is inserted into the first jacket 21 through the first through hole 11, the first steel ball 22 can be buckled into the first buckling groove 32 to lock the first movable seat 30; when the first jacket 21 moves downward relative to the first base 20, the first steel ball 22 can be acted to withdraw from the first buckling groove 32 to unlock the first movable seat 30.
Specifically, when loading and unloading a metal pipe, firstly, the grinding core rod 10 is inserted into an inner hole of the metal pipe, then the first connecting rod 31 is inserted into the first jacket 21 through the first perforation 11, so that the first steel ball 22 can be buckled into the first buckling groove 32, the first movable seat 30 is fixed on the top of the grinding core rod 10, and the position of the metal pipe on the grinding core rod 10 is limited by the first base 20 and the first movable seat 30 so as to finish the loading operation of the metal pipe; when the metal tube is fed, the metal tube can be taken out of the grinding core rod 10 only by acting the first clamping sleeve 21 to move downwards to push the first steel balls 22 out of the first buckling grooves 32 to unlock the first movable seat 30; compared with the prior art, the nut at the top and the bottom of the grinding core rod 10 does not need to be repeatedly loosened and tightened by operators; on one hand, the quick locking structure is convenient and fast, so that time and labor are saved when operators feed and discharge; on the other hand, because the tightness of the nut is not needed, the shaking caused by the tightness of the nut by an operator can be prevented, so that the problems of scratch, abrasion, bruise and the like of the metal pipe after the polishing operation is guaranteed not to occur due to shaking, the precision of the polished metal pipe is guaranteed to meet the design requirement, and the polishing efficiency and reliability are improved.
Referring to fig. 2 to 4, in some embodiments of the present application, the first base 20 is provided with a first chamber 23 penetrating through the upper and lower surfaces thereof, and a first conical limiting surface 231 is provided on the top of the first chamber 23; the first jacket 21 is provided with a first conical limiting part 211 matched with the first conical limiting surface 231, a first jack 212 is arranged at the top of the first conical limiting part 211, a plurality of horizontal through grooves 213 communicated with the first jack 212 are arranged on the side face of the first jacket, and each horizontal through groove 213 is movably provided with a first steel ball 22.
Specifically, the horizontal through grooves 213 have three, are circumferentially arranged at equal intervals along the peripheral side surface of the first taper restricting portion 211, and each horizontal through groove 213 is arranged at the same height; the diameter of each horizontal through groove 213 is larger than that of the first steel balls 22, and the distance between every two steel balls which can be abutted against each other is larger than that of the first jack 212, so that each first steel ball 22 cannot be separated from the first jack 212 even if the first connecting rod 31 is not inserted into the first jack 212; since the first tapered restricting portion 211 can move up to abut against the first tapered restricting surface 231, the first steel ball 22 can be displaced toward the center of the first insertion hole 212, and a portion of the first steel ball 22 enters the position of the first insertion hole 212; therefore, after the first connecting rod 31 is inserted into the first jack 212, the first jacket 21 can move upwards, so that the outer surface of the first conical limiting portion 211 abuts against the first conical limiting surface 231, and the first steel ball 22 is displaced towards the center of the first jack 212, so that the first steel ball can be locked into the first locking groove 32 of the first connecting rod 31, thereby locking the position of the first connecting rod 31, and further locking the first movable seat 30 on the top of the grinding core rod 10.
On the other hand, the bottom of the first jacket 21 is provided with a second chamber 214, and the side surface of the first jacket 21 is provided with a second limiting window 215 communicated with the second chamber 214; the bottom of the first base 20 is provided with a first limiting shaft 24, and the first limiting shaft 24 is limited in a second limiting window 215; a second spring 216 is mounted within the second chamber 214 with one end of the second spring 216 abutting the top of the second chamber 214 and the other end abutting the first restraining shaft 24.
Specifically, in the initial state, the second spring 216 provides an upward force for the first conical limiting portion 211, so that the outer surface of the first conical limiting portion 211 always abuts against the first conical limiting surface 231, and a portion of each first steel ball 22 enters the position of the first insertion hole 212; when the first connecting rod 31 is inserted into the first insertion hole 212, the first connecting rod 31 will abut against each first steel ball 22, and when the first connecting rod 31 is continuously pressed down, the first jacket 21 will be acted to move downwards for a certain distance, so that a gap exists between the first conical limiting part 211 and the first conical limiting surface 231, and each first steel ball 22 is displaced for a certain distance away from the center direction of the first insertion hole 212; when the first locking groove 32 and the horizontal through groove 213 of the first connecting rod 31 are located at the same height, the force applied to the first clamping sleeve 21 is cancelled, and the force is converted into the force applied to the first clamping sleeve 21 by the second spring 216 to provide upward displacement, and finally the first tapered limiting portion 211 and the first tapered limiting surface 231 abut against each other and lock the first steel ball 22 into the first locking groove 32, so as to complete the locking operation of the first connecting rod 31.
Referring to fig. 2 to 5, the first movable seat 30 is provided with a stepped avoidance hole penetrating through the upper and lower surfaces thereof, the stepped avoidance hole includes a first avoidance through hole 33 and a second avoidance through hole 34 which are vertically arranged, and the diameter of the first avoidance through hole 33 is larger than that of the second avoidance through hole 34; the top of the first connecting rod 31 is provided with a first convex ring 311, and the diameter of the first convex ring 311 is smaller than that of the first avoidance through hole 33; a first spring 35 is connected between the first convex ring 311 and the first escape through hole 33. When the acting force on the first connecting rod 31 is cancelled, the first spring 35 and the second spring 216 form a double-spring structure, and not only can upward acting force be generated for the first clamping sleeve 21 through the second spring 216, but also the first spring 35 can provide up-and-down acting force for the first connecting rod 31 so as to ensure that the first conical limiting part 211 of the first clamping sleeve 21 can reliably and accurately lean against the first conical limiting surface 231, thereby improving the reliability of buckling the first steel ball 22 into the first buckling groove 32, being not easy to loose, and being beneficial to the reliable proceeding of subsequent polishing operation.
Referring to fig. 5 and 6, the cross section of the grinding rod 10 is square, the four corners of the grinding rod 10 are respectively provided with a first silica gel block 12, the outer surface of the first silica gel block 12 is provided with a first arc-shaped surface 121, and the first arc-shaped surfaces 121 of the first silica gel blocks 12 are overlapped on a first virtual circle r 1; the left side and the right side of the grinding rod 10 are movably provided with a first grinding block 13, the outer surface of the first grinding block 13 is provided with a second arc-shaped surface 131, and the second arc-shaped surfaces 131 are overlapped on a second virtual circle r 2; when the first connecting rod 31 passes through the first through hole 11, the two first grinding blocks 13 can be simultaneously acted to move outwards, so that the diameter of a second virtual circle r2 formed by the second arc-shaped surface 131 is larger than that of the first virtual circle r 1; when the first connecting rod 31 exits the first through hole 11, the two first grinding blocks 13 are displaced toward the center of the first through hole 11, so that the diameter of the second virtual circle r2 formed by the second arc surface 131 is smaller than the diameter of the first virtual circle r 1.
Illustratively, the grinding core rods 10 with different sizes are selected according to the diameter of the inner hole of the metal tube, namely, in the grinding core rods 10 needing to be selected, the execution of a first virtual circle r1 formed by each first silica gel block 12 needs to be smaller than the diameter of the inner hole of the metal tube; when the core rod 10 is inserted into the inner hole of the metal tube, the first connecting rod 31 can act on each first grinding block 13 to move outwards in the process of penetrating from the top of the first insertion hole 212 and penetrating from the bottom of the first insertion hole 212, and a second virtual circle r2 is formed between the two first grinding blocks 13, and the diameter of the second virtual circle r2 is equal to or slightly larger than that of the inner hole of the metal tube, so that the inner hole of the metal tube is ground.
Specifically, at least two first grinding blocks 13 are arranged to form a double-sided grinding structure, and the first grinding blocks 13 can be used for grinding by being moved outwards under the action of a first connecting rod 31 against the surface of an inner hole of a metal pipe after the metal pipe is installed; after the metal tube polishing operation is finished, the first connecting rod 31 exits the first perforation 11, each first polishing block 13 can move towards the center position of the first perforation 11, so that the distance between each first polishing block 13 and the inner hole of the metal tube is increased, the problem that the inner hole of the metal tube is scratched, scratched or bumped by the polishing rod 10 is solved when the metal tube is fed, and the surface precision of the polished inner tube of the metal tube is further ensured to meet the design requirement. Meanwhile, by arranging the first silica gel blocks 12 at four corners of the grinding core rod 10, when the metal pipe is fed, even if operators shake the metal pipe, the metal pipe only abuts against the soft first silica gel blocks 12, and the inner hole of the metal pipe is not scratched, so that the feasibility is good.
It should be noted here that, depending on the actual production requirements, one or more first grinding blocks 13 can be arranged in succession along the extension direction of the grinding rod 10, a plurality of first grinding blocks 13 being able to be moved outwards by means of a first connecting rod 31 simultaneously against the surface of the inner bore of the metal tube. The bottom of the first connecting rod 31 is provided with a first guiding inclined plane 312, and the first guiding inclined plane 312 is obliquely arranged from bottom to top; the top of one side of each first grinding block 13 facing the first through hole 11 is provided with a second guiding inclined plane 133, and when the first connecting rod 31 is inserted into the first through hole 11, the first guiding inclined plane 312 and the second guiding inclined plane 133 can abut against each other, so that each first grinding block 13 can be simultaneously moved outwards.
Preferably, the left side and the right side of the grinding core rod 10 are respectively provided with a first avoiding through groove 14, the first avoiding through groove 14 penetrates through the outer side surface of the grinding core rod 10 and is communicated with the first perforation 11, and the first grinding block 13 is movably arranged in the first avoiding through groove 14. The side of the first avoiding through groove 14 facing the first perforation 11 is provided with a first notch 15, the first grinding block 13 is provided with a first abutting convex part 132, and a first metal elastic sheet 16 is arranged between the first notch 15 and the first abutting convex part 132. When the first connecting rod 31 exits the first through hole 11, the first metal elastic sheet 16 can provide an acting force for the first grinding block 13, so as to act on the first grinding block 13 to displace toward the center direction of the first through hole 11.
More specifically, the grinding core rod 10 comprises a left rod body 101 and a right rod body 102 which are mounted together in a split manner, wherein a first fixing ring 103 is mounted on the top of the left rod body 101 and the right rod body 102; the bottoms of the left rod body 101 and the right rod body 102 are provided with first connecting convex parts 104, and the first connecting convex parts 104 are provided with first external threads; the top of the first base 20 is provided with a first screw hole 201 for the first connection protrusion 104 to be screwed; when the first grinding blocks 13 need to be replaced, the first grinding blocks 13 can be replaced only by disassembling the first base 20 and the first fixing ring 103.
Referring to fig. 8, in other embodiments of the present application, the apparatus further includes a first supporting seat 40, a first supporting hole 41 is provided on an upper surface of the first supporting seat 40, the first supporting hole 41 is used for inserting the first base 20, and a first magnetic component 42 for absorbing downward displacement of the first jacket 21 is provided at a bottom of the first supporting hole 41. Therefore, the first jacket 21 is preferably made of a metal material capable of adsorption, and the first magnetic member 42 is a magnet; when the first base 20 is inserted into the first supporting hole 41, the first magnetic component 42 can absorb the downward displacement of the first jacket 21, so that a gap exists between the first conical limiting part 211 and the first conical limiting surface 231, and at this time, the first steel ball 22 can exit from the position of the first insertion hole 212 and enter into the gap between the first conical limiting part 211 and the first conical limiting surface 231, so that the effect that the first steel ball 22 exits from the first buckling groove 32 is achieved; at this time, the first connecting rod 31 can be taken out from the first through hole 11 to perform metal pipe blanking; subsequently, the first base 20 is pulled out of the first supporting hole 41, and the second spring 216 provides an upward force to the first jacket 21, so that the original state is restored.
In the prior art, the metal tube can be taken out only by unlocking nuts at the top and the bottom of the grinding core rod; however, in the process of unlocking the nut, it is difficult to place and fix the grinding core rod 10, so that an operator often shakes the metal tube when unlocking the nut, and a scratch problem occurs between the inner hole of the metal tube and the grinding core rod 10. Therefore, the first supporting seat 40 is provided in the present application, not only the unlocking operation of the first movable seat 30 can be rapidly achieved; and the grinding core rod 10 can be vertically arranged, so that an operator can conveniently take out the metal tube from the vertically arranged grinding core rod 10, and the occurrence of scratch between the inner hole of the metal tube and the grinding core rod 10 is reduced.
The application also provides a locking method of the quick locking structure of the double-sided grinding core rod 10, which comprises the following steps:
a locking step of preparing a metal pipe (not shown) to be polished, aligning the inner bore of the metal pipe with the grinding core rod 10, and inserting the grinding core rod 10 into the inner bore of the metal pipe; inserting a first connecting rod 31 into the first perforations 11 from the top of the grinding core rod 10 and acting on each first grinding block 13 to move outwardly against the metal tube inner bore surface; when the first connecting rod 31 passes through the bottom of the first through hole 11, the first jacket 21 moves downwards and the first buckling groove 32 and the first steel ball 22 are positioned at the same height when the bottom of the first connecting rod 31 is inserted into the first jack 212; releasing the acting force on the first connecting rod 31, and enabling the second spring 216 to act on the first jacket 21 to move upwards, so that the first steel ball 22 is buckled in the first buckling groove 32 to complete locking;
an unlocking step of providing a first supporting seat 40, inserting the first movable seat 30 into a first supporting hole 41 of the first supporting seat 40, and enabling the grinding core rod 10 to be erected; when the first movable seat 30 is inserted into the first supporting hole 41, the first magnetic component 42 at the bottom of the first supporting hole 41 provides suction force to the first clamping sleeve 21, so that the first clamping sleeve 21 is driven to displace downwards and the first steel balls 22 are driven to withdraw from the first buckling grooves 32; finally, the first movable seat 30 is moved upwards, so that the first connecting rod 31 can sequentially withdraw from the first insertion hole 212 and the first through hole 11, and meanwhile, the first metal elastic sheet 16 acts on each first grinding block 13 to displace towards the center direction of the first through hole 11, so that the metal pipe can be moved upwards from the grinding core rod 10 to be taken out.
The foregoing description of the preferred embodiments of the present invention has been provided for the purpose of illustrating the general principles of the present invention and is not to be construed as limiting the scope of the invention in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other embodiments of the present invention as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present invention.
Claims (10)
1. A two-sided mill core stick quick-locking structure which characterized in that: comprising
A grinding core rod (10) provided with a first perforation (11), wherein the first perforation (11) penetrates through the top and the bottom of the grinding core rod (10);
the quick lock structure comprises a first base (20) arranged at the bottom of the grinding core rod (10) and a first movable seat (30) detachably arranged at the top of the grinding core rod (10); the first base (20) is movably provided with a first jacket (21), and the first jacket (21) is provided with first steel balls (22); the first movable seat (30) is provided with a first connecting rod (31), and the first connecting rod (31) is provided with a first buckling groove (32) for buckling the first steel ball (22);
when the first connecting rod (31) passes through the first through hole (11) and is inserted into the first jacket (21), the first steel ball (22) can be buckled into the first buckling groove (32) to lock the first movable seat (30);
when the first jacket (21) moves downwards relative to the first base (20), the first steel balls (22) can be acted to withdraw from the first buckling grooves (32) so as to unlock the first movable base (30).
2. The double-sided wear core rod quick lock structure according to claim 1, wherein: the first base (20) is provided with a first cavity (23) penetrating through the upper surface and the lower surface of the first base, and the top of the first cavity (23) is provided with a first conical limiting surface (231);
the first jacket (21) is provided with a first conical limiting part (211) which is matched with the first conical limiting surface (231), the top of the first conical limiting part (211) is provided with a first jack (212), the side face of the first jacket is provided with a plurality of horizontal through grooves (213) which are communicated with the first jack (212), and each horizontal through groove (213) is movably provided with a first steel ball (22).
3. The double-sided wear core rod quick lock structure according to claim 2, wherein: the bottom of the first jacket (21) is provided with a second chamber (214), and the side surface of the first jacket (21) is provided with a second limiting window (215) communicated with the second chamber (214); the bottom of the first base (20) is provided with a first limiting shaft (24), and the first limiting shaft (24) is limited in a second limiting window (215); a second spring (216) is mounted in the second mounting chamber (214), one end of the second spring (216) abuts against the top of the second chamber (214), and the other end abuts against the first limiting shaft (24).
4. The double-sided wear core rod quick lock structure according to claim 1, wherein: the first movable seat (30) is provided with a stepped avoidance hole penetrating through the upper surface and the lower surface of the first movable seat, the stepped avoidance hole comprises a first avoidance through hole (33) and a second avoidance through hole (34) which are arranged up and down, and the diameter of the first avoidance through hole (33) is larger than that of the second avoidance through hole (34);
the top of the first connecting rod (31) is provided with a first convex ring (311), and the diameter of the first convex ring (311) is smaller than that of the first avoidance through hole (33);
a first spring (35) is connected between the first convex ring (311) and the first avoidance through hole (33).
5. The double-sided wear core rod quick lock structure according to claim 1, wherein: the cross section of the grinding core rod is square, first silica gel blocks (12) are arranged at four corners of the grinding core rod (10), first arc-shaped surfaces (121) are arranged on the outer surfaces of the first silica gel blocks (12), and the first arc-shaped surfaces (121) of the first silica gel blocks (12) are overlapped on a first virtual circle (r 1);
the left side and the right side of the grinding rod (10) are movably provided with a first grinding block (13), the outer surface of the first grinding block (13) is provided with a second arc-shaped surface (131), and the second arc-shaped surfaces (131) are overlapped on a second virtual circle (r 2);
when the first connecting rod (31) passes through the first perforation (11), the two first grinding blocks (13) can be simultaneously acted to move outwards, so that the diameter of a second virtual circle (r 2) formed by the second arc-shaped surface (131) is larger than that of the first virtual circle (r 1);
when the first connecting rod (31) exits the first through hole (11), the two first grinding blocks (13) are displaced towards the center direction of the first through hole (11), so that the diameter of a second virtual circle (r 2) formed by the second arc-shaped surface (131) is smaller than that of the first virtual circle (r 1).
6. The double-sided wear core rod quick lock structure according to claim 5, wherein: the grinding machine is characterized in that first avoidance through grooves (14) are formed in the left side and the right side of the grinding rod (10), the first avoidance through grooves (14) penetrate through the outer side face of the grinding rod (10) and are communicated with first through holes (11), and the first grinding blocks (13) are movably installed in the first avoidance through grooves (14).
7. The double-sided wear core rod quick lock structure according to claim 6, wherein: the first avoidance through groove (14) is provided with a first notch (15) facing one side of the first perforation (11), the first grinding block (13) is provided with a first propping convex part (132), and a first metal elastic sheet (16) is arranged between the first notch (15) and the first propping convex part (132).
8. The double-sided wear core rod quick lock structure according to claim 1 or 6, characterized in that: the grinding core rod (10) comprises a left rod body (101) and a right rod body (102) which are arranged together in a split mode, and a first fixing ring (103) is arranged at the top of the left rod body (101) and the top of the right rod body (102); the bottoms of the left rod body (101) and the right rod body (102) are provided with first connecting convex parts (104), and the first connecting convex parts (104) are provided with first external threads; the top of the first base (20) is provided with a first screw hole (201) for the screwed connection of the first connecting convex part (104).
9. The double-sided wear core rod quick lock structure according to claim 1, wherein: the novel magnetic chuck is characterized by further comprising a first supporting seat (40), wherein a first supporting hole (41) is formed in the upper surface of the first supporting seat (40), the first supporting hole (41) is used for being inserted by the first base (20), and a first magnetic component (42) used for adsorbing downward displacement of the first jacket (21) is arranged at the bottom of the first supporting hole (41).
10. A locking method of a double-sided grinding core rod quick locking structure, comprising the double-sided grinding core rod quick locking structure according to any one of claims 1 to 9; the method is characterized in that: the locking method comprises the following steps:
a locking step, namely preparing a metal pipe to be polished, aligning an inner hole of the metal pipe with a grinding core rod, and inserting the grinding core rod into the inner hole of the metal pipe; inserting a first connecting rod into the first perforation from the top of the grinding core rod, and enabling each first grinding block to move outwards to be abutted against the surface of an inner hole of the metal pipe, wherein when the first connecting rod penetrates out from the bottom of the first perforation, a first jacket is acted to move downwards in the process of inserting the bottom of the first connecting rod into the first perforation, and a first buckling groove and a first steel ball are located at the same height; releasing the acting force on the first connecting rod, and enabling the second spring to act on the first clamping sleeve to move upwards so that the first steel ball is buckled into the first buckling groove to complete locking;
an unlocking step, namely providing a first supporting seat, inserting a first movable seat into a first supporting hole of the first supporting seat, and enabling the grinding core rod to be vertically arranged; when the first movable seat is inserted into the first supporting hole, the first magnetic component at the bottom of the first supporting hole provides suction force for the first clamping sleeve, so that the first clamping sleeve is driven to displace downwards and the first steel balls are led to exit the first buckling groove; finally, the first movable seat is moved upwards, so that the first connecting rod sequentially exits the first jack and the first perforation, and the metal pipe can be moved upwards from the grinding core rod to be taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311727775.4A CN117532421B (en) | 2023-12-14 | 2023-12-14 | Quick locking structure and locking method for double-sided grinding core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311727775.4A CN117532421B (en) | 2023-12-14 | 2023-12-14 | Quick locking structure and locking method for double-sided grinding core rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117532421A true CN117532421A (en) | 2024-02-09 |
| CN117532421B CN117532421B (en) | 2024-05-14 |
Family
ID=89786207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311727775.4A Active CN117532421B (en) | 2023-12-14 | 2023-12-14 | Quick locking structure and locking method for double-sided grinding core rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117532421B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408945A (en) * | 1980-12-27 | 1983-10-11 | Phb Weserhutte Aktiengesellschaft | Stationary or mobile receiving bunker |
| CN103084942A (en) * | 2013-01-25 | 2013-05-08 | 江苏瑞普机床有限公司 | Small-hole inner conical surface precision computer numerical control (CNC) grinder |
| US20170144268A1 (en) * | 2015-11-25 | 2017-05-25 | Yu-Ching Lin | Connecting member for an abrasive member |
| CN206876077U (en) * | 2017-04-21 | 2018-01-12 | 浙江万里扬股份有限公司 | One kind examines structure |
| CN108296986A (en) * | 2017-12-26 | 2018-07-20 | 武汉协和齿环有限公司 | A kind of synchro converter ring inner ring processing composite fixture |
| CN110539248A (en) * | 2019-09-29 | 2019-12-06 | 苏州微创关节医疗科技有限公司 | polishing head and grinding tool |
| CN111924501A (en) * | 2020-09-02 | 2020-11-13 | 西安精雕精密机械工程有限公司 | Single-station workpiece loading device and method thereof |
| CN113021158A (en) * | 2019-12-09 | 2021-06-25 | 中国科学院大连化学物理研究所 | Axial floating polishing device for tail end of industrial robot |
| CN113404873A (en) * | 2021-07-21 | 2021-09-17 | 山东未来机器人有限公司 | Valve opening device and fire-fighting water taking robot |
| CN113855274A (en) * | 2021-10-12 | 2021-12-31 | 特力特(武汉)医疗科技有限公司 | Medical surgical mechanical arm and using method thereof |
| CN215357546U (en) * | 2020-12-30 | 2021-12-31 | 上海亮黑科技有限公司 | Efficient polishing equipment for machining core rod |
-
2023
- 2023-12-14 CN CN202311727775.4A patent/CN117532421B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408945A (en) * | 1980-12-27 | 1983-10-11 | Phb Weserhutte Aktiengesellschaft | Stationary or mobile receiving bunker |
| CN103084942A (en) * | 2013-01-25 | 2013-05-08 | 江苏瑞普机床有限公司 | Small-hole inner conical surface precision computer numerical control (CNC) grinder |
| US20170144268A1 (en) * | 2015-11-25 | 2017-05-25 | Yu-Ching Lin | Connecting member for an abrasive member |
| CN206876077U (en) * | 2017-04-21 | 2018-01-12 | 浙江万里扬股份有限公司 | One kind examines structure |
| CN108296986A (en) * | 2017-12-26 | 2018-07-20 | 武汉协和齿环有限公司 | A kind of synchro converter ring inner ring processing composite fixture |
| CN110539248A (en) * | 2019-09-29 | 2019-12-06 | 苏州微创关节医疗科技有限公司 | polishing head and grinding tool |
| CN113021158A (en) * | 2019-12-09 | 2021-06-25 | 中国科学院大连化学物理研究所 | Axial floating polishing device for tail end of industrial robot |
| CN111924501A (en) * | 2020-09-02 | 2020-11-13 | 西安精雕精密机械工程有限公司 | Single-station workpiece loading device and method thereof |
| CN215357546U (en) * | 2020-12-30 | 2021-12-31 | 上海亮黑科技有限公司 | Efficient polishing equipment for machining core rod |
| CN113404873A (en) * | 2021-07-21 | 2021-09-17 | 山东未来机器人有限公司 | Valve opening device and fire-fighting water taking robot |
| CN113855274A (en) * | 2021-10-12 | 2021-12-31 | 特力特(武汉)医疗科技有限公司 | Medical surgical mechanical arm and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117532421B (en) | 2024-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62102964A (en) | Simultaneous grinder for end surface of large number of optical fiber | |
| CN215393955U (en) | Inner support clamping device for large-sized cylinder part | |
| CN114770014A (en) | Adjustable multifunctional clamp for machining | |
| CN108714805A (en) | A kind of product multi-point clamping device | |
| CN117532421B (en) | Quick locking structure and locking method for double-sided grinding core rod | |
| CN108127591A (en) | Workpiece grip mechanism | |
| KR101238129B1 (en) | The center position device which used incense all sides | |
| CN209681655U (en) | A kind of elastic tensioning locating device | |
| CN116237835A (en) | Device for polishing pipe fitting groove | |
| CN213034366U (en) | Honing device with adjustable taper | |
| CN212287089U (en) | Automatic processing machine for drill point | |
| CN207723928U (en) | Chain link baffle ring drilling tooling | |
| CN219901103U (en) | Positioning fixture for boring cylinder sleeve | |
| KR20050110578A (en) | Jig of bit for core drill | |
| CN103481186A (en) | Optical switch collimator optical fiber mounting and grinding composite clamp | |
| CN220944601U (en) | Sanding device | |
| CN216155923U (en) | Novel sucker rod quenching clamping device | |
| CN208342300U (en) | A kind of flashboard fixture for processing | |
| CN220533782U (en) | Welding needle polishing equipment | |
| CN217832742U (en) | Device for processing inclined plane of engine connecting rod | |
| CN219901196U (en) | End face driving clamp for thin-wall part | |
| CN211916518U (en) | Grinding and polishing clamp | |
| CN219925468U (en) | Device for polishing pipe fitting groove | |
| CN219485527U (en) | Telescopic T-shaped wrench | |
| CN217992224U (en) | Hole positioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |