CN110749498A

CN110749498A - Cylinder sample anchor clamps based on sclerometer

Info

Publication number: CN110749498A
Application number: CN201911168975.4A
Authority: CN
Inventors: 张银霞; 原少帅; 杨鑫; 郜伟; 刘治华
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-02-04

Abstract

The invention discloses a cylindrical sample clamp based on a hardness tester, which comprises an upper supporting plate, wherein an outer clamp is fixedly arranged at the center of the upper supporting plate, lower support plates used for being connected with a horizontal sample table are slidably arranged at two ends of the lower part of the upper supporting plate in the length direction, connecting grooves are symmetrically arranged on opposite side surfaces of the lower support plates along the width direction of the upper supporting plate, connecting rods are inserted between the two corresponding connecting grooves, and a contraction spring is fixedly arranged between the two lower support plates; a placing groove is formed in the middle of the upper surface of the outer clamp. Has the advantages that: the cylinder sample clamp based on the hardness tester can clamp cylinder samples with different diameters through the outer clamp and the inner clamp, so that a laboratory technician can conveniently measure the hardness of the cylinder sample, and the application range is wide; the clamp can be clamped on horizontal sample platforms with different widths, and cannot damage the sample platforms simultaneously, so that the clamp is convenient to use.

Description

Cylinder sample anchor clamps based on sclerometer

Technical Field

The invention relates to the technical field of clamps, in particular to a cylindrical sample clamp based on a hardness tester.

Background

The hardness tester is a precision instrument for testing the performance of the cylindrical sample material in the industries of machinery, metallurgy and the like, and is widely applied to the aspects of development, research, actual test, quality management and the like of the cylindrical sample material. Due to the action of external forces, the surface of the cylindrical test piece is plastically deformed, and the material resists the capability of a hard object to be pressed into the surface of the cylindrical test piece, namely the hardness of the cylindrical test piece. The common hardness tester is provided with a diamond probe and a microscope with two different multiples, and the arranged sample platform is usually a horizontal platform which moves up and down and cannot well meet the placing condition of a curved surface sample.

Disclosure of Invention

The present invention is directed to solving the above problems by providing a cylindrical sample holder based on a hardness tester.

The technical scheme of the invention is realized as follows:

a cylinder sample clamp based on a hardness tester comprises an upper supporting plate, wherein an outer clamp is fixedly arranged at the center of the upper supporting plate, lower support plates used for being connected with a horizontal sample table are slidably arranged at two ends of the lower part of the upper supporting plate in the length direction, connecting grooves are symmetrically arranged on opposite side surfaces of the lower support plates along the width direction of the upper supporting plate, connecting rods are inserted between the two corresponding connecting grooves, and a contraction spring is fixedly arranged between the two lower support plates;

a placing groove is formed in the middle of the upper surface of the outer clamp, a guide hole is formed in the bottom surface of the placing groove, a communicating hole is formed in the bottom surface of the placing groove, a driving cavity is formed in the bottom of the outer clamp and communicated with the communicating hole, a rotating shaft with the top end inserted into the communicating hole is installed on the bottom surface of the driving cavity through a bearing, a driven bevel gear is fixedly installed on the outer side of the rotating shaft, a transmission hole is formed in the front end surface of the outer clamp and communicated with the driving cavity, a horizontal rotating shaft is inserted into the transmission hole, a driving bevel gear is fixedly installed on the outer side of the horizontal rotating shaft and positioned in the driving cavity and meshed with the driven bevel gear, a threaded barrel is installed on the top of the rotating shaft through threads, the threaded barrel extends out of the communicating hole and is provided with, the guide post corresponds to the guide hole.

Furthermore, the top surfaces of the outer clamp and the inner clamp are both V-shaped structures.

Furthermore, the top surface of the inner clamp is provided with a sliding chute corresponding to the placing groove, a base is slidably mounted inside the sliding chute, and a marking pen is mounted at the top of the base through threads.

Furthermore, the base and the cross section of the sliding chute are both dovetail type, and the base and the sliding chute are in clearance fit.

Furthermore, an alignment sleeve or a nameplate is inserted into the top of the marking pen.

Furthermore, the front end surface and the rear end surface of the inner clamp are inserted with limiting insertion rods for limiting the position of the base.

Furthermore, the side surfaces, far away from the contraction spring, of the lower support plate are provided with rotating pieces, and the rotating pieces are provided with threaded holes for mounting limit screws.

Furthermore, the guide posts are arranged in two numbers, the guide posts are symmetrically arranged along the length direction of the placing groove, and the threaded cylinders are located in the middle of the guide posts.

Furthermore, the upper surface of the lower plate of the support is provided with a sliding block, and the lower surface of the upper support plate is provided with a sliding chute for the sliding block to slide.

Furthermore, the sliding block with the cross-section of spout is "T" style of calligraphy, just the sliding block with spout clearance fit.

By adopting the technical scheme, the invention has the beneficial effects that: the cylinder sample clamp based on the hardness tester can clamp cylinder samples with different diameters through the outer clamp and the inner clamp, so that a laboratory technician can conveniently measure the hardness of the cylinder sample, and the application range is wide; the clamp can be clamped on horizontal sample platforms with different widths, and cannot damage the sample platforms simultaneously, so that the clamp is convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a right side cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of the present invention;

FIG. 4 is a diagrammatic view of the lower plate construction of the bracket of the present invention;

fig. 5 is an exploded schematic view of the present invention.

The reference numerals are explained below:

1. a bracket lower plate; 101. connecting grooves; 102. a slider; 2. supporting the upper plate; 3. a guide post; 4. an outer clamp; 401. a placement groove; 402. a guide hole; 403. a drive chamber; 404. a drive bore; 405. a communicating hole; 5. an inner clamp; 501. a sliding chute; 6. a nameplate; 7. a marking pen; 8. a base; 9. a limiting inserted rod; 10. a threaded barrel; 11. a horizontal rotating shaft; 12. a rotating shaft; 13. a driven bevel gear; 14. a drive bevel gear; 15. an alignment sleeve; 16. a connecting rod; 17. a retraction spring; 18. a rotating sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, a cylindrical sample clamp based on a hardness tester comprises an upper supporting plate 2, an outer clamp 4 is fixedly installed at the central position of the upper supporting plate 2, a lower support plate 1 for connecting with a horizontal sample stage is slidably installed at both ends of the lower part of the upper supporting plate 2 in the length direction, rotary pieces 18 are installed on the side surfaces of the lower support plate 1 far away from a shrinkage spring 17, threaded holes for installing limit screws are formed in the rotary pieces 18, the rotary pieces 18 can be rotated to align the threaded holes with the upper supporting plate 2, the limit screws are installed to limit the upper supporting plate 2, connecting grooves 101 are symmetrically arranged on the opposite side surfaces of the lower support plate 1 in the width direction of the upper supporting plate 2, and connecting rods 16 are inserted between the corresponding two connecting grooves 101, the contraction spring 17 is fixedly arranged between the two bracket lower plates 1;

a placing groove 401 is formed in the middle of the upper surface of the outer clamp 4, a guide hole 402 is formed in the bottom surface of the placing groove 401, a communication hole 405 is formed in the bottom surface of the placing groove 401, a driving cavity 403 is formed in the bottom of the outer clamp 4, the communication hole 405 is communicated with the driving cavity 403, a rotating shaft 12 with the top end inserted into the communication hole 405 is installed on the bottom surface of the driving cavity 403 through a bearing, a driven bevel gear 13 is fixedly installed on the outer side of the rotating shaft 12, a transmission hole 404 is formed in the front end surface of the outer clamp 4, the transmission hole 404 is communicated with the driving cavity 403, a horizontal rotating shaft 11 is inserted into the transmission hole 404, a driving bevel gear 14 is fixedly installed on the outer side of the horizontal rotating shaft 11, the driving bevel gear 14 is located in the driving cavity 403 and meshed with the driven bevel, the threaded cylinder 10 extends out of the communication hole 405 and is provided with an inner clamp 5, the bottom surface of the inner clamp 5 is provided with a guide column 3, and the guide column 3 corresponds to the guide hole 402.

In this embodiment, the top surfaces of the outer clamp 4 and the inner clamp 5 are both in a V-shaped structure, so that the cylindrical samples can be placed through the V-shaped structure, and the outer clamp 4 and the inner clamp 5 are different in size, so that the cylindrical samples with different diameters can be placed.

In this embodiment, the top surface of the inner fixture 5 is provided with a sliding chute 501 corresponding to the placing groove 401, a base 8 is slidably mounted inside the sliding chute 501, a marker pen 7 is mounted at the top of the base 8 through a thread, so that the marker pen 7 can be driven by the base 8 to slide inside the sliding chute 501, and therefore axial point position marking is performed on the cylindrical samples at different positions.

In this embodiment, base 8 with the cross-section of sliding chute 501 is the dovetail, just base 8 with sliding chute 501 clearance fit sets up like this and can guarantees base 8 is in sliding stability in sliding chute 501 avoids simultaneously base 8 in vertical direction with sliding chute 501 separation.

In this embodiment, 7 tops of marker pens are pegged graft and are had alignment sleeve 15 or mark tablet 6, set up like this and pass through alignment sleeve 15 confirms whether anchor clamps are located the intermediate position of sample platform, conveniently observes, and confirms the position of anchor clamps after, takes off alignment sleeve 15 installs signboard 6, mark tablet 6 and confirm the circumference angle of cylinder sample, conveniently measure the hardness number of the different angles of cylinder sample.

In this embodiment, the front and rear end surfaces of the inner clamp 5 are inserted with the limiting insertion rods 9 for limiting the position of the base 8, so that the position of the base 8 can be limited by the limiting insertion rods 9, and the base 8 is prevented from being separated from the sliding chute 501.

In this embodiment, the side surfaces of the support lower plate 1, which are far away from the retraction spring 17, are both provided with the rotating pieces 18, and the rotating pieces 18 are provided with threaded holes for installing limit screws, so that the rotating pieces 18 can be rotated to align the threaded holes with the support upper plate 2, and the limit screws are installed, so that the support upper plate 2 is limited.

In this embodiment, the number of the guide posts 3 is two, the guide posts 3 are symmetrically arranged along the length direction of the placing groove 401, and the threaded cylinder 10 is located in the middle of the guide posts 3, so that the sliding stability of the inner clamp 5 in the placing groove 401 can be further ensured.

In this embodiment, the upper surface of the support lower plate 1 is provided with a sliding block 102, and the lower surface of the support upper plate 2 is provided with a sliding groove for sliding the sliding block 102, so that the sliding block 102 can slide in the sliding groove, and the sliding installation characteristic of the support lower plate 1 and the support upper plate 2 is ensured.

In this embodiment, the cross sections of the sliding block 102 and the sliding groove are T-shaped, and the sliding block 102 and the sliding groove are in clearance fit, so that the sliding stability of the sliding block 102 in the sliding groove can be ensured, and the connection stability of the support upper plate 2 and the support lower plate 1 can be ensured.

When in use, the bracket lower plate 1 is pulled against the elastic force of the contraction spring 17, the connecting rod 16 slides in the connecting groove 101, so that the distance between the clamping parts at the bottom of the bracket lower plate 1 can be increased, the bracket lower plate 1 is placed on the upper surface of a horizontal sample table, and the distance between the clamping parts at the bottom of the lower plate 1 of the bracket is larger than the width dimension of the horizontal sample table, the lower plate 1 of the bracket is loosened, so that the device is fixed on the horizontal sample table by the elasticity of the contraction spring 17, at the moment, the support upper plate 2 slides above the support lower plate 1, the support upper plate 2 is ensured to be positioned at the middle position of the support lower plate 1, the rotating piece 18 is rotated to enable the threaded hole to be aligned with the supporting upper plate 2, and a limiting screw is mounted to limit the supporting upper plate 2; when a clamp is needed to clamp a cylindrical sample, the inner clamp 5 or the outer clamp 4 is selected according to the diameter size of the cylindrical sample, when the diameter size of the cylindrical sample is larger, the cylindrical sample can be directly clamped through the outer clamp 4, when the diameter size of the cylindrical sample is smaller, the cylindrical sample is clamped through adjusting the height of the inner clamp 5, when the cylindrical sample is adjusted, the horizontal rotating shaft 11 is rotated, the horizontal rotating shaft 11 drives the driving bevel gear 14 to rotate, the driven bevel gear 13 can drive the rotating shaft 12 to rotate due to the meshing of the driving bevel gear 14 and the driven bevel gear 13, and the threaded cylinder 10 drives the inner clamp 5 to ascend or descend under the driving action of the rotating shaft 12 due to the threaded meshing of the top of the rotating shaft 12 and the threaded cylinder 10, so that the height position of the cylindrical sample is adjusted, in this process, the guide posts 3 and the guide holes 402 can play a guiding role, and the inner clamp 5 is prevented from rotating inside the placing groove 401.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a cylinder sample anchor clamps based on sclerometer which characterized in that: the device comprises an upper supporting plate (2), an outer clamp (4) is fixedly installed at the center of the upper supporting plate (2), two ends of the lower portion of the upper supporting plate (2) in the length direction are respectively provided with a lower support plate (1) in a sliding mode and used for being connected with a horizontal sample table, connecting grooves (101) are symmetrically formed in the opposite side faces of the lower support plates (1) along the width direction of the upper supporting plate (2), connecting rods (16) are inserted between the two corresponding connecting grooves (101), and a contraction spring (17) is fixedly installed between the two lower support plates (1);

a placing groove (401) is formed in the middle of the upper surface of the outer clamp (4), a guide hole (402) is formed in the bottom surface of the placing groove (401), a communicating hole (405) is formed in the bottom surface of the placing groove (401), a driving cavity (403) is formed in the bottom of the outer clamp (4), the communicating hole (405) is communicated with the driving cavity (403), a rotating shaft (12) with the top end inserted into the communicating hole (405) is installed on the bottom surface of the driving cavity (403) through a bearing, a driven bevel gear (13) is fixedly installed on the outer side of the rotating shaft (12), a transmission hole (404) is formed in the front end surface of the outer clamp (4), the transmission hole (404) is communicated with the driving cavity (403), a horizontal rotating shaft (11) is inserted into the transmission hole (404), and a driving bevel gear (14) is fixedly installed, the driving bevel gear (14) is located in the driving cavity (403) and meshed with the driven bevel gear (13), a threaded cylinder (10) is installed at the top of the rotating shaft (12) through threads, the threaded cylinder (10) extends out of the communicating hole (405) and is provided with an inner clamp (5), the bottom surface of the inner clamp (5) is provided with a guide column (3), and the guide column (3) corresponds to the guide hole (402).

2. The sclerometer-based cylinder sample holder of claim 1, further comprising: the top surfaces of the outer clamp (4) and the inner clamp (5) are both V-shaped structures.

3. The sclerometer-based cylinder sample holder of claim 2, further comprising: the top surface of the inner clamp (5) is provided with a sliding chute (501) corresponding to the placing groove (401), a base (8) is slidably mounted inside the sliding chute (501), and the top of the base (8) is provided with a marking pen (7) through threads.

4. The sclerometer-based cylinder sample holder of claim 3, further comprising: the cross sections of the base (8) and the sliding chute (501) are both dovetail-shaped, and the base (8) is in clearance fit with the sliding chute (501).

5. The sclerometer-based cylinder sample holder of claim 4, in which: an alignment sleeve (15) or a nameplate (6) is inserted into the top of the marking pen (7).

6. The sclerometer-based cylinder sample holder of claim 3, further comprising: the front end surface and the rear end surface of the inner clamp (5) are inserted with limiting insertion rods (9) used for limiting the position of the base (8).

7. The sclerometer-based cylinder sample holder of claim 1, further comprising: the side surfaces, far away from the contraction spring (17), of the support lower plate (1) are provided with rotating pieces (18), and threaded holes for mounting limit screws are formed in the rotating pieces (18).

8. The sclerometer-based cylinder sample holder of claim 1, further comprising: the number of the guide columns (3) is two, the guide columns (3) are symmetrically arranged along the length direction of the placing groove (401), and the threaded cylinder (10) is located in the middle of the guide columns (3).

9. The sclerometer-based cylinder sample holder of claim 1, further comprising: the upper surface of the support lower plate (1) is provided with a sliding block (102), and the lower surface of the support upper plate (2) is provided with a sliding groove for the sliding block (102) to slide.

10. The sclerometer-based cylinder sample holder of claim 9, further comprising: the cross section of the sliding block (102) and the sliding groove is T-shaped, and the sliding block (102) is in clearance fit with the sliding groove.