CN110919417A - Clamping and positioning device for cutting metallographic specimen and clamping and positioning method thereof - Google Patents
Clamping and positioning device for cutting metallographic specimen and clamping and positioning method thereof Download PDFInfo
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- CN110919417A CN110919417A CN201911370393.4A CN201911370393A CN110919417A CN 110919417 A CN110919417 A CN 110919417A CN 201911370393 A CN201911370393 A CN 201911370393A CN 110919417 A CN110919417 A CN 110919417A
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- support
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- locking
- sliding sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
Abstract
The invention relates to the technical field of metallographic cutting, in particular to a clamping and positioning device and a clamping and positioning method for cutting a metallographic specimen. According to the invention, when the metallographic cutting machine is used for cutting the special-shaped sample, the special-shaped sample can be effectively clamped and fixed, the sample is firmly locked, looseness or falling off in the cutting process is avoided, the sample is accurately cut without damaging equipment, the relative position of the sample and the cutting knife can be conveniently and flexibly adjusted, and accurate positioning is realized, so that the required sample part can be cut, the cutting requirement is met without frequently replacing a clamp, the labor intensity is reduced, the cutting efficiency is improved, and the equipment is effectively maintained.
Description
Technical Field
The invention relates to the technical field of metallographic cutting, in particular to a clamping and positioning device for cutting a metallographic sample and a clamping and positioning method thereof.
Background
When the metallographic analysis is performed on a metal material, a sample needs to be subjected to a series of pretreatment steps such as cutting, embedding, grinding, polishing, etching and the like. The selection of the appropriate cutting site and the cutting of a specimen of the appropriate size is an important part of the pretreatment. At present, most of metallographic cutting machines are provided with a T-shaped groove workbench, and when a sample is cut, the sample is clamped on a clamping device and then locked and fixed on the T-shaped groove workbench of the cutting machine. The clamp can only move along the T-shaped groove on the workbench in a single direction, and the position of the clamp cannot be flexibly adjusted in the horizontal plane range and the vertical range, so that the adjustment of the relative position of the sample and the cutting knife is limited, the sample cannot be accurately positioned and cut, the desired sample part cannot be cut, and when the sample area is too small, the device also possibly cannot cut the sample. At present, a clamping device provided by a metallographic cutting machine is mainly suitable for clamping a regular-shaped sample, and a special-shaped sample with an irregular clamping shape is complex and low in efficiency, and is often not tightly clamped or even can not be clamped, so that the special-shaped sample can not be clamped and cut. The sample clamping is not tight, and the sample is easy to slide and fall off during cutting, so that the sample cannot be accurately cut, and the cutting equipment can be damaged.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a clamping and positioning device and a clamping and positioning method for cutting a metallographic sample, which can realize clamping and positioning of a special-shaped metallographic sample, avoid sample loosening or falling off in cutting, conveniently and flexibly adjust the relative position of the sample and a cutting knife, realize accurate positioning and accurately cut a required sample part.
In order to solve the technical problems, the invention adopts the following technical scheme:
a clamping and positioning device for cutting a metallographic sample comprises a support mechanism and a clamp mechanism movably mounted on the support mechanism, wherein the support mechanism comprises a support base, a support rotatably mounted on the support base, a sliding sleeve moving along the length direction of the support, a sliding sleeve adjusting and locking assembly used for positioning the sliding sleeve on the support, a sliding block integrally designed with the support base and a locking base mounted on the sliding block; the clamp mechanism comprises a supporting block, an upper clamping block, a lower clamping block, a jacking screw rod, two supporting guide rods and a plurality of pressing screws, wherein the upper clamping block and the supporting block are fixed at the upper end and the lower end of each supporting guide rod respectively, the lower clamping block is installed on the supporting guide rods between the upper clamping block and the supporting block in a sliding mode, the lower clamping block is provided with a first bearing flat plate portion and a second bearing flat plate portion arranged in a crossed mode with the first bearing flat plate portion, the first bearing flat plate portion and the second bearing flat plate portion are symmetrically arranged along the central line of the lower clamping block, the plurality of pressing screws are installed on the upper clamping block in a threaded mode, one end, far away from the upper clamping block, of each pressing screw is abutted against the first bearing flat plate portion or the second bearing flat plate portion of the lower clamping block, the jacking screw rod is installed on the supporting block in a threaded mode, the upper.
Further, the support is integrally provided with a rotation locking portion, the rotation locking portion is provided with an annular groove, the upper end of the support base is concavely provided with a containing groove, angle scales are arranged on the support base and surround the support, a plurality of fastening threaded holes communicated with the containing groove are formed in the side end of the support base, fastening screws are installed in the fastening threaded holes, the rotation locking portion is located in the containing groove, and one ends of the fastening screws are inserted into the annular groove.
Furthermore, the support is provided with two flat plate parts which are parallel to each other and two opposite arc parts, a through hole is formed in the middle of the sliding sleeve, the support penetrates through the through hole, and the shape of the through hole is matched with the shape of the cross section of the support.
Furthermore, the sliding sleeve adjusting and locking assembly comprises a positioning nut and a locking nut which are all sleeved on the support, internal threads are arranged on the inner side of the positioning nut and the inner side of the locking nut, external threads are arranged on two arc parts of the support in a protruding mode, the positioning nut is located above the sliding sleeve, and the locking nut is located below the sliding sleeve.
Furthermore, the both sides of sliding sleeve all are equipped with first bolt locking hole, and locking bolt is installed to first bolt locking hole internal thread, two second bolt locking holes have been seted up to the lateral wall of supporting shoe, and the one end that locking bolt kept away from first bolt locking hole inserts second bolt locking hole.
Further, the support base is provided with a plurality of first mounting holes, the first mounting holes sequentially penetrate through the support base and the sliding block, the locking base is provided with a plurality of second mounting holes, and the first mounting holes are coaxially arranged with the second mounting holes respectively.
Furthermore, one end, far away from the supporting block, of the jacking screw rod is integrally provided with a first screwing head, the outer diameter of the first screwing head is larger than that of the jacking screw rod, a plurality of first ribs are arranged on the outer side of the first screwing head, and the first ribs are annularly arrayed around a central shaft of the first screwing head.
Furthermore, one end of the locking bolt is integrally provided with a second screwing head, the outer diameter of the second screwing head is larger than that of the locking bolt, the outer side of the second screwing head is provided with a plurality of second convex edges, and the second convex edges are annularly arrayed around the central shaft of the second screwing head.
A clamping and positioning method for cutting a metallographic specimen comprises the following steps,
the method comprises the following steps: placing a sample to be cut between the first bearing flat plate part, the second bearing flat plate part and the pressing screw of the lower clamping block;
step two: rotating the jacking screw to drive the lower clamping block to move upwards, and enabling the sample to be cut to be tightly attached to the upper clamping block;
step three: adjusting a plurality of pressing screws of the upper clamping block to enable the plurality of pressing screws to press and hold the sample uniformly, and clamping the sample to be cut among the first bearing flat plate part, the second bearing flat plate part and the pressing screws;
step four: adjusting the position of a sample to be cut along the vertical direction, and fixing a supporting block on a sliding sleeve of the bracket by a locking bolt;
step five: the locking base is pushed into a T-shaped groove of an external cutting machine workbench, the support base is positioned on the workbench to slide, the position of the support and a cutting knife of the external cutting machine is adjusted, and the support base is fixed at a cutting position corresponding to the external cutting machine workbench.
Furthermore, in the fourth step, the sliding sleeve is slid along the support to adjust the height of the sliding sleeve, the sliding sleeve adjusting and locking assembly fixes the sliding sleeve on the support, the support is rotated to horizontally rotate the sample to be cut to a preset cutting position, and the support is fixed on the support base.
The invention has the beneficial effects that: according to the invention, when the metallographic cutting machine is used for cutting the special-shaped sample, the special-shaped sample can be effectively clamped and fixed, the sample is firmly locked, looseness or falling off in the cutting process is avoided, the sample is accurately cut without damaging equipment, the relative position of the sample and the cutting knife can be conveniently and flexibly adjusted, and accurate positioning is realized, so that the required sample part can be cut, the cutting requirement is met without frequently replacing a clamp, the labor intensity is reduced, the cutting efficiency is improved, and the equipment is effectively maintained.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the overall structure of the clamping mechanism of the present invention.
FIG. 4 is an exploded view of the upper clamp block, support guide and support block of the present invention.
Fig. 5 is a schematic view of the overall structure of the support mechanism of the present invention.
Fig. 6 is a schematic structural diagram of a fastening screw, a bracket, a sliding sleeve, a positioning nut and a locking nut of the invention.
Fig. 7 is a schematic structural view of the holder base and the locking base of the present invention.
Description of reference numerals:
1-a support base; 11-a receiving groove; 12-angle scale; 13-fastening threaded holes; 14-a fastening screw; 15-a first mounting hole; 2-a scaffold; 21-a rotation locking part; 22-a ring groove; 23-a flat plate portion; 24-a circular arc portion; 25-external threads; 3, sliding sleeve; 31-a first bolt locking hole; 32-a locking bolt; 321-a second screw head; 322-a second rib; 33-perforating; 4-a slide block; 5-locking the base; 51-a second mounting hole; 6-positioning the nut; 7-locking the nut; 8-a clamping mechanism; 81-support block; 811-second bolt locking hole; 82-an upper clamping block; 83-lower clamping block; 831-first carrying flat plate portion; 832-a second carrying plate portion; 84-tightening the screw rod; 841-first screw head; 842-a first rib; 85-support guide rod; 86-holding screw.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1 to 7, the clamping and positioning device for cutting a metallographic specimen provided by the present invention comprises a support mechanism and a clamp mechanism 8 movably mounted on the support mechanism, wherein the support mechanism comprises a support base 1, a support 2 rotatably mounted on the support base 1, a sliding sleeve 3 moving along the length direction of the support 2, a sliding sleeve adjusting and locking assembly for positioning the sliding sleeve 3 on the support 2, a sliding block 4 integrally designed with the support base 1, and a locking base 5 mounted on the sliding block 4; the clamp mechanism 8 includes a supporting block 81, an upper clamping block 82, a lower clamping block 83, a tightening screw 84, two supporting guide rods 85 and a plurality of pressing screws 86, the upper clamping block 82 and the supporting block 81 are respectively fixed at the upper and lower ends of the supporting guide rods 85, the lower clamping block 83 is slidably mounted on the supporting guide rods 85 between the upper clamping block 82 and the supporting block 81, the lower clamping block 83 is provided with a first bearing flat plate portion 831 and a second bearing flat plate portion 832 crossing the first bearing flat plate portion 831, the first bearing flat plate portion 831 and the second bearing flat plate portion 832 are symmetrically arranged along the central line of the lower clamping block 83, the plurality of pressing screws 86 are all threadedly mounted on the upper clamping block 82, one end of the pressing screw 86 far away from the upper clamping block 82 is abutted against the first bearing flat plate portion 831 or the second bearing flat plate portion 832 of the lower clamping block 83, the tightening screw 84 is threadedly mounted on the supporting block 81, the upper end of the tightening screw 84 is abutted against the lower clamping block 83, the supporting block 81 is connected with the sliding sleeve 3. The lower clamping block 83 is provided with two cylindrical through holes, and the two support rods 85 respectively penetrate through the two cylindrical through holes, so that the lower clamping block 83 is slidably arranged between the support block 81 and the upper clamping block 82. The jacking screw 84 penetrates through the threaded hole of the supporting block 81 and jacks the lower clamping block 83 to limit the movement of the lower clamping block 83, and the clamping force on the sample can be enhanced through the matching of the jacking screw 84 and the lower clamping block 83.
In practical application, a metallographic sample to be cut is positioned between the pressing screw 86 and the lower clamping block 83, the first bearing flat plate 831 and the second bearing flat plate 832 of the lower clamping block are V-shaped, and can play an effective bilateral symmetry supporting role when the sample is placed, the supporting block 81 is installed on the sliding sleeve 3, the locking base 5 is installed on a T-shaped groove workbench of an external metallographic cutting machine, so that the bracket base 1 can be positioned on the T-shaped groove workbench to slide, the positions of the bracket 2 and a cutting knife of the metallographic cutting machine are adjusted, the height of the locking sliding sleeve 3 is adjusted to further adjust the height of the clamp, the bracket 2 is rotated to horizontally rotate the sample to a preset cutting position, and then the fastening screw 14 is screwed down, so that the bracket 2 is fixed on the bracket base 1, the bracket mechanism is used for connecting the clamp mechanism 8 with the T-shaped groove workbench of the metallographic cutting machine, the movement of the bracket 2 on the T-shaped groove workbench and the rotation of the bracket, meanwhile, the heights of the clamp and the sliding sleeve 3 are adjusted so as to achieve the purpose of adjusting the relative position of the sample and the cutting knife; the upper clamping block 82 is provided with a plurality of threaded holes which are bilaterally symmetrical and distributed in a matrix, and the plurality of holding screws 86 are respectively and threadedly mounted in the threaded holes of the upper clamping block 82, so that the special-shaped sample can be effectively clamped and fixed, the sample is firmly locked, looseness or falling off in the cutting process is avoided, the sample is accurately cut without damaging equipment.
In this embodiment, an organic whole of support is equipped with rotates locking portion 21, it is equipped with annular 22 to rotate locking portion 21, the concave storage tank 11 that is equipped with in upper end of support base 1, be equipped with angle scale 12 on the support base 1, angle scale 12 sets up around support 2, support 2 can rotate 360 degrees around storage tank 11 center pin, angle scale 12 is used for instructing the rotatory angle value of support 2, a plurality of fastening screw hole 13 with storage tank 11 intercommunication are seted up to the side of support base 1, fastening screw 14 is installed to fastening screw hole 13, it is located storage tank 11 to rotate locking portion 21, fastening screw 14's one end inserts in annular 22. The cross section of rotating locking portion 21 and storage tank 11 all are circular to realize rotating locking portion 21 and be located the storage tank 11 internal rotation, gimbal mechanism can conveniently adjust the relative position of metallographic specimen and cutting knife in a flexible way, guarantees to cut from the sample position of needs.
In this embodiment, the support 2 is provided with two flat plate portions 23 and two opposite arc portions 24 which are parallel to each other, a through hole 33 is formed in the middle of the sliding sleeve 3, the support 2 penetrates through the through hole 33, the shape of the through hole 33 is matched with the cross section shape of the support 2, the sliding sleeve 3 cannot rotate around the support 2, the stability of the sliding sleeve 3 is improved, and the cutting accuracy is improved.
In this embodiment, the sliding sleeve adjusting and locking assembly comprises a positioning nut 6 and a locking nut 7 which are all sleeved on the support 2, inner threads are arranged on the inner side of the positioning nut 6 and the inner side of the locking nut 7, outer threads 25 are convexly arranged on two arc portions 24 of the support 2, the positioning nut 6 is located above the sliding sleeve 3, and the locking nut 7 is located below the sliding sleeve 3. It is specific, adjust 6 height of set nut and can adjust 3 heights of sliding sleeve, thereby confirm the sample anchor clamps height, adjust lock nut 7 and can fix sliding sleeve 3 between two nuts and do not reciprocate, through rotatory set nut 6 and lock nut 7, in order to fix sliding sleeve 3 on the predetermined height of support 2, in order to reach the purpose of the relative position of adjustment metallographic specimen and cutting knife, when utilizing the metallographic cutting machine to cut the sample, can conveniently adjust the relative position of metallographic specimen and cutting knife in a flexible way.
In this embodiment, the both sides of sliding sleeve 3 all are equipped with first bolt locking hole 31, and locking bolt 32 is installed to first bolt locking hole 31 internal thread, two second bolt locking holes 811 have been seted up to the lateral wall of supporting shoe 81, and locking bolt 32 is kept away from the one end in first bolt locking hole 31 and is inserted second bolt locking hole 811, and locking bolt 32 passes first bolt locking hole 31 and second bolt locking hole 811 and can be connected whole fixture mechanism 8 and support 2.
In this embodiment, the support base 1 is provided with a plurality of first mounting holes 15, the first mounting holes 15 sequentially penetrate through the support base 1 and the slider 4, the locking base 5 is provided with a plurality of second mounting holes 51, the plurality of first mounting holes 15 are respectively coaxially arranged with the plurality of second mounting holes 51, and external fixing members such as screws or bolts install the locking base 5 on the support base 1 through the first mounting holes 15 and the second mounting holes 51, so that the whole support base 1 is firmer.
In this embodiment, one end of the tightening screw 84, which is far away from the supporting block 81, is integrally provided with a first screwing head 841, the outer diameter of the first screwing head 841 is greater than the outer diameter of the tightening screw 84, the outer side of the first screwing head 841 is provided with a plurality of first ribs 842, and the plurality of first ribs 842 are annularly arrayed around the central axis of the first screwing head 841. The puller screw 84 selects a round-head hexagon socket screw, the outer surface of the first twisting head 841 is processed with a first convex ridge 842 through rough design, so that friction force is increased, and the screw is conveniently and manually screwed fast.
In this embodiment, a second screw head 321 is integrally disposed at one end of the locking bolt 32, the outer diameter of the second screw head 321 is larger than the outer diameter of the locking bolt 32, a plurality of second protruding ribs 322 are disposed on the outer side of the second screw head 321, and the plurality of second protruding ribs 322 are annularly arrayed around the central axis of the second screw head 321. The outer surface of the second screwing head 321 is rough and is provided with a second convex rib 322, so that friction force is increased, and manual quick screwing is facilitated.
A clamping and positioning method for cutting a metallographic specimen comprises the following steps,
the method comprises the following steps: placing the sample to be cut between the first bearing flat plate part 831, the second bearing flat plate part 832 and the pressing screw 86 of the lower clamping block 83;
step two: the jacking screw 84 is rotated to drive the lower clamping block 83 to move upwards, and the sample to be cut abuts against the upper clamping block 82;
step three: adjusting the plurality of pressing screws 86 of the upper clamping block 82 to enable the plurality of pressing screws 86 to press and hold the sample, and clamping the sample to be cut between the first bearing flat plate part 831, the second bearing flat plate part 832 and the pressing screws 86;
step four: adjusting the position of the sample to be cut along the vertical direction, and fixing the supporting block 81 on the sliding sleeve 3 of the bracket 2 by the locking bolt 32;
step five: the locking base 5 is pushed into a T-shaped groove of an external cutting machine workbench, the support base 1 is positioned on the workbench to slide, the positions of the support 2 and a cutting knife of the external cutting machine are adjusted, and the support base 1 is fixed on a cutting position corresponding to the external cutting machine workbench.
In the fourth step, the sliding sleeve 3 is slid along the support 2 to adjust the height of the sliding sleeve 3, the sliding sleeve adjusting and locking assembly fixes the sliding sleeve 3 on the support 2, the support 2 is rotated to horizontally rotate the sample to be cut to a preset cutting position, and the support 2 is fixed on the support base 1.
The support mechanism connects the clamp mechanism 8 with a T-shaped groove workbench of the metallographic cutting machine, the support 2 moves on the T-shaped groove workbench and rotates, and the heights of the clamp and the sliding sleeve 3 are adjusted simultaneously so as to achieve the purpose of adjusting the relative positions of the sample and the cutting knife; when the metallographic cutter is used for cutting a sample, the relative position of the metallographic sample and the cutter can be conveniently and flexibly adjusted, so that the cutting can be carried out from a required sample part, the cutting of various small-area samples and special-shaped samples can be met, the cutting requirement is met without frequently replacing a clamp, the labor intensity is reduced, and the cutting efficiency is improved; the clamping and positioning method for cutting the metallographic specimen can realize effective clamping and fixing of a small-area specimen and a special-shaped specimen, the specimen is firmly locked, looseness or falling off occurs in effective cutting, the specimen is accurately cut without damaging equipment, the relative position of the specimen and a cutting knife can be conveniently and flexibly adjusted, accurate positioning is realized, and accordingly the required specimen part can be cut.
All the technical features in the embodiment can be freely combined according to actual needs.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a centre gripping positioner for cutting metallographic specimen, includes gimbal mechanism and movable mounting in gimbal mechanism's fixture mechanism, its characterized in that: the support mechanism comprises a support base, a support rotatably mounted on the support base, a sliding sleeve moving along the length direction of the support, a sliding sleeve adjusting and locking assembly used for positioning the sliding sleeve on the support, a sliding block integrally designed with the support base and a locking base mounted on the sliding block;
the clamp mechanism comprises a supporting block, an upper clamping block, a lower clamping block, a jacking screw rod, two supporting guide rods and a plurality of pressing screws, wherein the upper clamping block and the supporting block are fixed at the upper end and the lower end of each supporting guide rod respectively, the lower clamping block is installed on the supporting guide rods between the upper clamping block and the supporting block in a sliding mode, the lower clamping block is provided with a first bearing flat plate portion and a second bearing flat plate portion arranged in a crossed mode with the first bearing flat plate portion, the first bearing flat plate portion and the second bearing flat plate portion are symmetrically arranged along the central line of the lower clamping block, the plurality of pressing screws are installed on the upper clamping block in a threaded mode, one end, far away from the upper clamping block, of each pressing screw is abutted against the first bearing flat plate portion or the second bearing flat plate portion of the lower clamping block, the jacking screw rod is installed on the supporting block in a threaded mode, the upper.
2. A holding and positioning device for cutting metallographic specimens according to claim 1, characterized in that: the support is integrative to be equipped with and to rotate locking portion, rotates locking portion and is equipped with the annular, and the upper end of support base is concave to be equipped with the storage tank, is equipped with the angle scale on the support base, and the angle scale is around the support setting, and a plurality of fastening screw holes with the storage tank intercommunication are seted up to the side of support base, installs fastening screw in the fastening screw hole, rotates locking portion and rotates to be located the storage tank, and fastening screw's one end inserts in the annular.
3. A holding and positioning device for cutting metallographic specimens according to claim 1, characterized in that: the support is provided with two flat plate parts which are parallel to each other and two opposite arc parts, a through hole is formed in the middle of the sliding sleeve, the support penetrates through the through hole, and the shape of the through hole is matched with the shape of the cross section of the support.
4. A holding and positioning device for cutting metallographic specimens according to claim 3, characterized in that: the sliding sleeve adjusting and locking assembly comprises a positioning nut and a locking nut which are all sleeved on the support, internal threads are arranged on the inner side of the positioning nut and the inner side of the locking nut, external threads are arranged on two arc parts of the support in a protruding mode, the positioning nut is located above the sliding sleeve, and the locking nut is located below the sliding sleeve.
5. A holding and positioning device for cutting metallographic specimens according to claim 1, characterized in that: the both sides of sliding sleeve all are equipped with first bolt locking hole, and locking bolt is installed to first bolt locking hole internal thread, two second bolt locking holes have been seted up to the lateral wall of supporting shoe, and the one end that locking bolt kept away from first bolt locking hole inserts second bolt locking hole.
6. A holding and positioning device for cutting metallographic specimens according to claim 1, characterized in that: the support base is provided with a plurality of first mounting holes, the first mounting holes sequentially penetrate through the support base and the sliding block, the locking base is provided with a plurality of second mounting holes, and the first mounting holes are coaxially arranged with the second mounting holes respectively.
7. A holding and positioning device for cutting metallographic specimens according to claim 1, characterized in that: the supporting block is arranged on the supporting block, and the supporting block is arranged on the supporting block.
8. A clamping and positioning device for cutting metallographic specimens according to claim 5, characterized in that: one end of the locking bolt is integrally provided with a second screwing head, the outer diameter of the second screwing head is larger than that of the locking bolt, the outer side of the second screwing head is provided with a plurality of second convex edges, and the second convex edges are annularly arrayed around a central shaft of the second screwing head.
9. A clamping and positioning method for cutting a metallographic specimen is characterized by comprising the following steps: a holding and positioning device for cutting a metallographic specimen comprising any one of claims 1 to 8, comprising the steps of,
the method comprises the following steps: placing a sample to be cut between the first bearing flat plate part, the second bearing flat plate part and the pressing screw of the lower clamping block;
step two: rotating the jacking screw to drive the lower clamping block to move upwards, and enabling the sample to be cut to be tightly attached to the upper clamping block;
step three: adjusting a plurality of pressing screws of the upper clamping block to enable the plurality of pressing screws to press and hold the sample uniformly, and clamping the sample to be cut among the first bearing flat plate part, the second bearing flat plate part and the pressing screws;
step four: adjusting the position of a sample to be cut along the vertical direction, and fixing a supporting block on a sliding sleeve of the bracket by a locking bolt;
step five: the locking base is pushed into a T-shaped groove of an external cutting machine workbench, the support base is positioned on the workbench to slide, the position of the support and a cutting knife of the external cutting machine is adjusted, and the support base is fixed at a cutting position corresponding to the external cutting machine workbench.
10. The method of claim 9, wherein the clamping and positioning method comprises the following steps: in the fourth step, the sliding sleeve is slid along the support to adjust the height of the sliding sleeve, the sliding sleeve is adjusted by the sliding sleeve to fix the sliding sleeve on the support, the support is rotated to enable the sample to be cut to horizontally rotate to the preset cutting position, and the support is fixed on the support base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370393.4A CN110919417A (en) | 2019-12-26 | 2019-12-26 | Clamping and positioning device for cutting metallographic specimen and clamping and positioning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370393.4A CN110919417A (en) | 2019-12-26 | 2019-12-26 | Clamping and positioning device for cutting metallographic specimen and clamping and positioning method thereof |
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| CN110919417A true CN110919417A (en) | 2020-03-27 |
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| CN201911370393.4A Pending CN110919417A (en) | 2019-12-26 | 2019-12-26 | Clamping and positioning device for cutting metallographic specimen and clamping and positioning method thereof |
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| CN111588423A (en) * | 2020-06-08 | 2020-08-28 | 刘绍才 | Pathological cell tissue resection device capable of finely adjusting cutting area |
| CN111912646A (en) * | 2020-06-28 | 2020-11-10 | 安徽创华自控仪表设备有限公司 | Clamping device is used in production of pipeline sample valve |
| CN112378729A (en) * | 2020-11-03 | 2021-02-19 | 河北国鼎信检测技术服务有限公司 | Metallographic specimen polishing equipment |
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2019
- 2019-12-26 CN CN201911370393.4A patent/CN110919417A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588423A (en) * | 2020-06-08 | 2020-08-28 | 刘绍才 | Pathological cell tissue resection device capable of finely adjusting cutting area |
| CN111912646A (en) * | 2020-06-28 | 2020-11-10 | 安徽创华自控仪表设备有限公司 | Clamping device is used in production of pipeline sample valve |
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Effective date of registration: 20200709 Address after: No.96 Xiangyuan Road, shangtunshuiwei village, Liaobu Town, Dongguan City, Guangdong Province Applicant after: DONGGUAN SPECIAL EQUIPMENT DETECTION AND ENERGY-SAVING SERVICE CENTER Co.,Ltd. Applicant after: GUANGDONG INSTITUTE OF SPECIAL EQUIPMENT INSPECTION AND RESEARCH DONGGUAN BRANCH Address before: No.96 Xiangyuan Road, shangtunshuiwei village, Liaobu Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN SPECIAL EQUIPMENT DETECTION AND ENERGY-SAVING SERVICE CENTER Co.,Ltd. |
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Correction item: Applicant|Address|Applicant Correct: Dongguan special equipment testing and energy saving Technology Service Center Co., Ltd|No.96 Xiangyuan Road, shangtun Shuiwei village, Liaobu Town, Dongguan City, Guangdong Province False: Dongguan special equipment testing and energy saving Technology Service Center Co., Ltd|523000 No. 96, Xiangyuan Road, shangtun Shuiwei village, Liaobu Town, Dongguan City, Guangdong Province|Guangdong Special Equipment Testing Institute Dongguan Testing Institute Number: 31-01 Volume: 36 |
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Effective date of registration: 20200814 Address after: 523000 Quality and Technical Supervision Bureau of Gaotianfang City, Dongcheng City, Dongguan City, Guangdong Province Applicant after: GUANGDONG INSTITUTE OF SPECIAL EQUIPMENT INSPECTION AND RESEARCH DONGGUAN BRANCH Applicant after: DONGGUAN SPECIAL EQUIPMENT DETECTION AND ENERGY-SAVING SERVICE CENTER Co.,Ltd. Address before: No.96 Xiangyuan Road, shangtunshuiwei village, Liaobu Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN SPECIAL EQUIPMENT DETECTION AND ENERGY-SAVING SERVICE CENTER Co.,Ltd. |