CN219787942U - Metallographic sample grinding clamp - Google Patents
Metallographic sample grinding clamp Download PDFInfo
- Publication number
- CN219787942U CN219787942U CN202320190082.5U CN202320190082U CN219787942U CN 219787942 U CN219787942 U CN 219787942U CN 202320190082 U CN202320190082 U CN 202320190082U CN 219787942 U CN219787942 U CN 219787942U
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- China
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- pressing plate
- sample
- threaded hole
- base
- driving block
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- 238000000227 grinding Methods 0.000 title claims abstract description 23
- 238000003801 milling Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a metallographic sample grinding clamp, which comprises: the base is provided with a plurality of rotationally symmetrical clamping grooves for clamping the embedded sample; a plurality of pressing plates which are rotationally symmetrical and correspond to the clamping grooves; the pressing plate is hinged with the base; the driving block compresses or releases the pressing plate through the linear movement of the driving block, so that the pressing plate opens and compresses the embedded sample or is separated from the embedded sample. Firstly, clamping the embedded sample in a clamping groove, and mounting the cover plate on the base; then the whole is reversely buckled, the embedded sample falls under the action of gravity, and the top of the embedded sample is flush with the cover plate; then the driving block moves to press the pressing plate, so that the pressing plate opens, the pressing plate applies force to the embedded sample, and the embedded sample is clamped between the clamping groove and the pressing plate to realize fixation; finally, the cover plate is taken down, and the clamp is installed on an automatic sample grinding machine to realize automatic sample grinding; the utility model replaces manual work, and improves sample grinding quality and efficiency.
Description
Technical Field
The utility model relates to the technical field of clamps, in particular to a metallographic sample preparation clamp for metallographic detection.
Background
When the metallographic detection is carried out on the excellent steel bar and wire rod, a disk sample is generally manufactured first, then an embedded sample is manufactured in an embedded mode, and the diameter of the embedded sample is generally unified to be phi 50mm. Finally, the embedded sample is held by hand and ground on a sample grinding machine.
When the yield is large, the efficiency is low because only one mosaic sample can be ground at a time. How to overcome the above-mentioned defects is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model discloses a metallographic sample grinding clamp.
The utility model provides a metallographic sample grinding clamp, which comprises:
the base is provided with a plurality of rotationally symmetrical clamping grooves for clamping the embedded sample;
a plurality of pressing plates which are rotationally symmetrical and correspond to the clamping grooves; the pressing plate is hinged with the base;
the driving block compresses or releases the pressing plate through the linear movement of the driving block, so that the pressing plate opens and compresses the embedded sample or is separated from the embedded sample.
Firstly, clamping the embedded sample in a clamping groove, and mounting the cover plate on the base; then the whole is reversely buckled, the embedded sample falls under the action of gravity, and the top of the embedded sample is flush with the cover plate; then the driving block moves to press the pressing plate, so that the pressing plate opens, the pressing plate applies force to the embedded sample, and the embedded sample is clamped between the clamping groove and the pressing plate to realize fixation; finally, the cover plate is taken down, and the clamp is installed on an automatic sample grinding machine to realize automatic sample grinding; the utility model replaces manual work, and improves sample grinding quality and efficiency.
The specific structure of the pressing plate hinge is as follows: the central position of base is provided with the solid fixed ring, and the lower extreme cover of clamp plate connects the solid fixed ring, realizes articulating.
The fixing ring is independently arranged on the base, so that the difficulty is high, the problem is further improved and solved, the base is provided with a fixing seat, the upper end of the fixing seat is provided with a plurality of rotationally symmetrical convex blocks, and the fixing ring penetrates through the convex blocks; the pressing plate is positioned between the convex blocks. The lug is also used for mounting and limiting the pressing plate, so that the position of the pressing plate is firmer, and dislocation can not occur when the pressing plate is opened and closed.
The specific structure of the driving block for driving the pressing plate to open is as follows: when the pressing plate is folded, the shape of the reducing pipe is formed; the driving block is positioned between the pressing plates and is in a matched round table shape; the drive block moves axially along it.
The specific structure of the driving block movement is as follows: the driving block is provided with a first threaded hole, and the base is provided with a second threaded hole;
the first threaded hole and the second threaded hole are coaxial, and the thread directions of the first threaded hole and the second threaded hole are opposite;
the screw rod is sequentially connected with the second threaded hole and the first threaded hole in a threaded mode.
During the back-off, inlay the appearance and block by the draw-in groove easily, be difficult to the whereabouts, have the clearance between its top and the apron to influence grinds appearance quality, based on this, further design is: the base is also provided with a plurality of ejector rods which are connected elastically, the ejector rods are connected with the bottom of the embedded sample, and thrust is applied to the embedded sample under the action of elasticity. The ejector rod has an elastic concrete structure that: the base is provided with a plurality of rotationally symmetrical third threaded holes, and the ejector rod is clamped at one end of each third threaded hole; the other end of the third threaded hole is in threaded connection with a stud; a spring is connected between the ejector rod and the stud. Thus, when the embedded sample is clamped in the clamping groove, the ejector rod is pressed, the ejector rod moves backwards after being stressed, and the spring is compressed; when the whole back-off of anchor clamps, the restoring force drive ejector pin of spring moves forward, and the ejector pin promotes and inlays the appearance whereabouts, ensures that the top of inlaying the appearance supports the apron.
The concrete structure of the third threaded hole of ejector rod joint is: one end of the third threaded hole is provided with an inward convex ring, and the bottom of the ejector rod is provided with a clamping plate for clamping the convex ring.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the structure of the present utility model with a partial inlay mounted therein and with a partial platen hidden;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
fig. 4 is an enlarged view at B in fig. 3;
FIG. 5 is a schematic view of the mounting structure of the platen, retaining ring and anchor block;
in the figure: 1. a base; 2. a clamping groove; 3. mosaic sample; 4. a pressing plate; 5. a driving block; 6. a fixing seat; 7. a bump; 8. a first threaded hole; 9. a second threaded hole; 10. a screw; 11. a push rod; 12. a third threaded hole; 13. a stud; 14. a spring; 15. a convex ring; 16. a clamping plate; 17. and a fixing ring.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Embodiment one:
as shown in fig. 1 and 2, the utility model relates to a metallographic sample grinding fixture, which comprises a base 1, wherein a ring plate is arranged at the upper end of the base 1, and a plurality of rotationally symmetrical arc clamping grooves 2 are formed in the inner wall of the ring plate and are used for clamping and embedding samples 3.
As shown in fig. 5, a fixing ring 17 is installed at the center of the upper end of the base 1, a plurality of pressing plates 4 corresponding to the clamping grooves 2 are installed on the fixing ring 17, and the lower ends of the pressing plates are sleeved on the fixing ring 17 to realize hinging. When the pressing plate 4 is folded, the shape of the reducing pipe is formed.
A driving block 5 is also arranged at the center of the upper end of the base 1. The driving block 5 is positioned between the pressing plates 4 and is in a shape of a round table; the upper end is a flaring end, and the lower end is a necking end. As shown in fig. 3, the lower end of the driving block 5 is provided with a first threaded hole 8 which is a blind hole. The base 1 is provided with a second threaded hole 9 which is a through hole. The first threaded hole 8 and the second threaded hole 9 are coaxial, and the thread directions of the first threaded hole and the second threaded hole are opposite; the screw 10 is in turn screwed into the second threaded hole 9 and the first threaded hole 8. By screwing the screw 10, the driving block 5 can be driven to linearly move along the axial direction, and the pressing plate 4 is pressed or loosened, so that the pressing plate 4 is opened and pressed to the mosaic sample 3 or separated from the mosaic sample 3.
The operation steps are as follows: a. clamping the mosaic sample 3 in the clamping groove 2; b. the cover plate is arranged on the base 1; 3. the whole is reversed, the embedded sample 3 falls under the action of gravity, and the top of the embedded sample is flush with the cover plate; 4. the screw rod 10 is screwed outwards, and before the driving block 5 applies pressure to the pressing plate 4, the driving block rotates along with the screw rod 10 and moves towards the hinging direction of the pressing plate 4; when pressure exists between the driving block 5 and the pressing plate 4, friction force is generated, the pressing plate 4 starts to open, and the driving block 5 stops rotating under the action of the friction force; because the spiral directions of the first threaded hole 8 and the second threaded hole 9 are opposite, the driving block 5 continues to move towards the hinging direction of the pressing plate 4 under the action of the rotation of the screw rod 10, the pressing plate 4 applies force to the mosaic sample 3, so that the mosaic sample 3 is clamped between the clamping groove 2 and the pressing plate 4, and the fixation is realized; 5. and taking down the cover plate, and installing the clamp on the automatic sample grinding machine to realize automatic sample grinding. The utility model replaces manual work, and improves sample grinding quality and efficiency.
Embodiment two:
the difference from the first embodiment is that: as shown in fig. 5, a fixed seat 6 is arranged on the base 1, a plurality of rotationally symmetrical protruding blocks 7 are arranged at the upper end of the fixed seat, and a fixed ring 17 penetrates through the protruding blocks 7; the pressure plate 4 is located between the bumps 7. The base 1 is arranged, so that the fixing ring 17 is convenient to install; and the convex blocks 7 are also used for mounting and limiting the pressing plate 4, so that the position of the pressing plate is firmer, and dislocation can not occur when the pressing plate is opened and closed.
Embodiment III:
the difference from the first embodiment is that: as shown in fig. 3 and 4, the base 1 is provided with a plurality of third screw holes 12 which are rotationally symmetrical and correspond to the inlay 3. The upper end joint of third screw hole 12 has ejector pin 11, specifically: the upper end of the third threaded hole 12 is provided with an inward convex ring 15, and the bottom of the ejector rod 11 is provided with a clamping plate 16 which is clamped with the convex ring 15. The ejector rod 11 penetrates out of the upper end of the third threaded hole 12, and the clamping plate 16 abuts against the convex ring 15 to realize clamping. The lower end of the third threaded hole 12 is connected with a stud 13 in a threaded manner. A spring 14 is connected between the ejector rod 11 and the stud 13. So, when the mosaic sample 3 is clamped in the clamping groove 2, the ejector rod 11 is pressed, the ejector rod 11 moves backwards under the force, and the spring 14 is compressed; when the whole fixture is reversely buckled, the restoring force of the spring 14 drives the ejector rod 11 to move forwards, the ejector rod 11 pushes the mosaic sample 3 to fall, and the top of the mosaic sample 3 is ensured to abut against the cover plate.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A metallographic sample grinding fixture, comprising:
the base (1) is provided with a plurality of rotationally symmetrical clamping grooves (2) for clamping the mosaic sample (3);
a plurality of rotationally symmetrical pressing plates (4) corresponding to the clamping grooves (2); the pressing plate (4) is hinged with the base (1);
and the driving block (5) compresses or releases the pressing plate (4) through the linear movement of the driving block, so that the pressing plate (4) opens and compresses the mosaic sample (3) or is separated from the mosaic sample (3).
2. The metallographic sample grinding clamp according to claim 1, wherein: the center position of the base (1) is provided with a fixed ring (17), and the lower end of the pressing plate (4) is sleeved with the fixed ring (17) to realize hinging.
3. The metallographic sample grinding fixture according to claim 2, wherein: a fixed seat (6) is arranged on the base (1), a plurality of rotationally symmetrical convex blocks (7) are arranged at the upper end of the fixed seat, and the fixed ring (17) penetrates through the convex blocks (7); the pressing plate (4) is positioned between the convex blocks (7).
4. A metallographic sample milling fixture according to claim 3, wherein: when the pressing plate (4) is folded, the shape of the reducing pipe is formed; the driving block (5) is positioned between the pressing plates (4) and is in a matched round table shape; the drive block (5) moves axially along it.
5. The metallographic sample grinding clamp according to claim 4, wherein: the driving block (5) is provided with a first threaded hole (8), and the base (1) is provided with a second threaded hole (9);
the first threaded hole (8) and the second threaded hole (9) are coaxial, and the thread directions of the first threaded hole and the second threaded hole are opposite;
the screw rod (10) is sequentially connected with the second threaded hole (9) and the first threaded hole (8) in a threaded mode.
6. The metallographic sample grinding clamp according to claim 1, wherein: the base (1) is also provided with a plurality of ejector rods (11) which are elastically connected, and the ejector rods (11) are connected with the bottom of the mosaic sample (3) and apply thrust to the mosaic sample (3) under the action of elasticity.
7. The metallographic sample grinding clamp according to claim 6, wherein: the base (1) is provided with a plurality of rotationally symmetrical third threaded holes (12), and the ejector rod (11) is clamped at one end of the third threaded holes (12); the other end of the third threaded hole (12) is in threaded connection with a stud (13); a spring (14) is connected between the ejector rod (11) and the stud (13).
8. The metallographic sample grinding clamp according to claim 7, wherein: one end of the third threaded hole (12) is provided with an inward protruding convex ring (15), and the bottom of the ejector rod (11) is provided with a clamping plate (16) which is clamped with the convex ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320190082.5U CN219787942U (en) | 2023-02-10 | 2023-02-10 | Metallographic sample grinding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320190082.5U CN219787942U (en) | 2023-02-10 | 2023-02-10 | Metallographic sample grinding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219787942U true CN219787942U (en) | 2023-10-03 |
Family
ID=88154909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320190082.5U Active CN219787942U (en) | 2023-02-10 | 2023-02-10 | Metallographic sample grinding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219787942U (en) |
-
2023
- 2023-02-10 CN CN202320190082.5U patent/CN219787942U/en active Active
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