CN212622012U

CN212622012U - Clamp for testing irregular-shaped sample by Vickers hardness tester

Info

Publication number: CN212622012U
Application number: CN202020881470.4U
Authority: CN
Inventors: 邹春雷; 金宇峰; 张孝忠; 于航; 徐宏飞; 段德印; 李勇; 李刚
Original assignee: Dalian Sitaibo Metallurgical Technology Co ltd
Current assignee: Dalian Sitaibo Metallurgical Technology Co ltd
Priority date: 2020-05-24
Filing date: 2020-05-24
Publication date: 2021-02-26
Anticipated expiration: 2030-05-24

Abstract

The utility model discloses a vickers hardness tester tests irregularly shaped sample anchor clamps, comprising a base plate, the equal rigid coupling in lower surface four corners of bottom plate has the landing leg, the both sides of bottom plate are equipped with clamping mechanism. This vickers hardness tester test irregularly shaped sample anchor clamps, through the bottom plate, cooperation between landing leg and the clamping mechanism, operating personnel can place the work piece of the hardness test that awaits measuring between the left and right sides splint, make the test surface level of the work piece that awaits measuring up, at this moment operating personnel carries out clockwise rotation with the knob of both sides, the inboard a plurality of compression springs of splint can carry out the compression of not equidimension, can make the side counterbalance of a plurality of rubber blocks and irregular work piece tightly press from both sides, then accomplish the tight location operation of clamp to the irregular work piece that awaits measuring, need not to use the sample to inlay the auxiliary, required preparation operation before the test has been reduced, can provide convenient for the tester.

Description

Clamp for testing irregular-shaped sample by Vickers hardness tester

Technical Field

The utility model relates to a test fixture technical field specifically is a vickers hardness tester tests irregularly shaped sample anchor clamps.

Background

The hardness test is particularly important for metal heat treatment processing and is an important quality index for immediately testing finished products, the Vickers hardness is often used for measuring smaller and thinner samples, the Vickers hardness has the advantages of small indentation size, high measurement precision and the like, and is widely applied in production and scientific research, when the Vickers hardness test is carried out, in order to obtain a reliable measurement result, the surface of a sample to be tested is required to be flat and smooth, generally, polishing treatment is needed to ensure that a pressure head is vertical to the test surface, for some samples with small sections, complex shapes and irregular shapes, the tested material is often made into an embedded sample with a certain specification or a special hardometer clamping device is used for testing, however, the embedding and manufacturing process of the sample is time-consuming and labor-consuming, the process is complicated, a certain inclination can be generated on the bottom surface of the embedded sample, or burrs and the like easily exist on the lower periphery of the sample, no matter which situation will directly influence the precision of hardness test, and current vickers does not possess the test function of irregular shape, only inlays or polishes the method of leveling and test, can't provide convenient for the tester.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vickers hardness tester tests irregular shape sample anchor clamps to solve the inlaying manufacturing process of the sample that proposes in the above-mentioned background art and waste time and energy, the process is loaded down with trivial details, and the bottom surface of inlaying the sample can produce certain inclination often, perhaps the periphery easily exists overlap etc. under the sample, no matter which kind of situation all will directly influence the precision of hardness test, and current vickers hardness tester does not possess irregular shape's test function, only inlay or polish smooth method and test, can't provide convenient problem for the tester.

In order to achieve the above object, the utility model provides a following technical scheme: a vickers hardness tester test specimen clamp in an irregular shape comprises a bottom plate, wherein four corners of the lower surface of the bottom plate are fixedly connected with supporting legs, and two sides of the bottom plate are provided with clamping mechanisms;

the clamping mechanism comprises a screw, a knob, a sleeve, a bent rod, a clamping plate, a rubber block, a groove, a first compression spring and a cross rod;

two the screw rod is located the inside left and right sides of bottom plate respectively, the screw rod passes through ball bearing and rotates with the bottom plate and link to each other, the outside end of screw rod runs through the bottom plate, the outside end rigid coupling of screw rod has the knob, the sleeve has been cup jointed to the outer wall of screw rod, telescopic inner wall links to each other with the outer wall screw thread of screw rod, the equal rigid coupling in both ends has the knee around the telescopic outer wall, the knee runs through the bottom plate through horizontal logical groove, the top rigid coupling of knee has splint, a plurality of recesses have been seted up to the even equidistance in inboard surface of splint, the inside tip rigid coupling of recess has first compression spring, first compression spring's other end rigid coupling has the horizontal pole, the other end rigid coupling of horizontal pole.

Preferably, the center points of the first compression spring, the cross rod and the rubber block are all located on the same horizontal line.

Preferably, an auxiliary mechanism is arranged above the bottom plate;

the auxiliary mechanism comprises an upright rod, a lantern ring, a transverse plate and a horizontal bulb;

four the pole setting rigid coupling is in the upper surface four corners of bottom plate respectively, the outer wall top below of pole setting is fixed to be adjusted there is the lantern ring, the diaphragm has been cup jointed to the outer wall of pole setting, the lower surface of diaphragm is laminated with the upper surface of the lantern ring mutually, the upper surface center embedding rigid coupling of diaphragm has the level bubble.

Preferably, the left side and the right side of the center of the upper surface of the transverse plate are fixedly connected with handles.

Preferably, the center of the bottom plate is provided with a jacking part mechanism;

the ejecting mechanism comprises a vertical cylinder, an external thread cylinder, a square rod, a long strip plate, a motor, a belt pulley, a belt, a square block, a supporting plate, a circular groove, a second compression spring, a resisting rod, a ball and a disc;

the vertical cylinder is positioned in the center of the lower surface of the bottom plate and is rotationally connected with the center of the lower surface of the bottom plate through a ball bearing, a disc is fixedly connected to the bottom end of the inner wall of the vertical cylinder, an external thread cylinder is in threaded connection with the center of the inner wall of the disc, a square rod is arranged at the bottom end of the inner wall of the external thread cylinder, the outer wall of the square rod is in clearance fit with the inner wall of the external thread cylinder, a long strip plate is fixedly connected to the bottom end of the square rod, the contact surface of the long strip plate and the supporting leg is fixedly connected, a motor is fixedly connected to the right side of the lower surface of the bottom plate, a belt pulley is fixedly connected to the bottom end of the motor, the belt pulley is rotationally connected with the vertical cylinder through a belt, a square block is fixedly connected to the top end of the external thread cylinder, a supporting plate is sleeved on the outer wall of the square, the top end of the abutting rod is connected with a ball in a sliding and clamping mode.

Preferably, the square rod and the external thread cylinder form a sliding limiting structure.

Compared with the prior art, the beneficial effects of the utility model are that: this vickers hardness tester tests irregularly shaped sample anchor clamps for traditional technique, has following advantage:

through the bottom plate, cooperation between landing leg and the clamping mechanism, operating personnel can place the work piece of the hardness test that awaits measuring between left and right sides splint, make the test surface level of the work piece that awaits measuring up, at this moment operating personnel carries out clockwise rotation with the knob of both sides, can make the splint of both sides move to the inboard side, a plurality of first compression springs of splint inboard can carry out the compression of different degrees, can make the side counterbalance of a plurality of rubber blocks and irregular work piece tightly press from both sides, accomplish the tight location operation of clamp to the irregular work piece that awaits measuring, need not to use the sample to inlay the auxiliary, and then need not worry the drawback of using the sample to inlay the auxiliary, required preparation operation before having reduced the test, can provide convenient for testing personnel.

Through the bottom plate, the landing leg, cooperation between clamping mechanism and the complementary unit, when using clamping mechanism to press from both sides tight location to the work piece, operating personnel can cup joint the diaphragm on the outer wall of pole setting, the lower surface that makes the diaphragm is laminated with the upper surface of the lantern ring mutually, can know whether anchor clamps are whole to be in the horizontality through observing the horizontal bubble, do benefit to the accuracy of follow-up test result, laminating mutually at the test surface of the work piece that will await measuring and the lower surface of diaphragm, use clamping mechanism to press from both sides tight location operation to the work piece, the face that awaits measuring that can be convenient for guarantee the work piece is in the horizontality, further do benefit to.

Through the bottom plate, the landing leg, clamping mechanism, cooperation between complementary unit and the ejecting mechanism, operating personnel can be with the work piece mode of the irregular await measuring hardness that awaits measuring in the top of layer board, the work piece can offset tightly with the ball, then power supply the motor, can make the belt pulley rotate the transmission through the belt, can make a vertical section of thick bamboo and disc rotate simultaneously, can make an external screw thread section of thick bamboo, the square, the layer board, support pole and work piece and upwards remove simultaneously, can make the await measuring face of work piece comparatively quick and the lower surface of diaphragm laminate mutually, can facilitate for operating personnel's test work, do benefit to and use widely.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a connection structure of the base plate, the bent rods and the support plate of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the vertical rod, the horizontal plate and the horizontal bulb in FIG. 1;

FIG. 4 is a schematic view showing a connection structure of the vertical tube, the circular disc and the externally threaded tube of FIG. 1.

In the figure: 1. the device comprises a bottom plate, 2, supporting legs, 3, a clamping mechanism, 301, a screw rod, 302, a knob, 303, a sleeve, 304, a bent rod, 305, a clamping plate, 306, a rubber block, 307, a groove, 308, a first compression spring, 309, a cross rod, 4, an auxiliary mechanism, 401, a vertical rod, 402, a sleeve ring, 403, a cross plate, 404, a horizontal bubble, 5, a top piece mechanism, 501, a vertical cylinder, 502, an external thread cylinder, 503, a square rod, 504, a long strip plate, 505, a motor, 506, a belt pulley, 507, a belt, 508, a square block, 509, a supporting plate, 510, a circular groove, 511, a second compression spring, 512, a support rod, 513, a ball, 514, a disc, 6 and a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a vickers hardness tester test sample clamp with an irregular shape comprises a bottom plate 1, supporting legs 2 are fixedly connected to four corners of the lower surface of the bottom plate 1, clamping mechanisms 3 are arranged on two sides of the bottom plate 1, each clamping mechanism 3 comprises a screw 301, a knob 302, a sleeve 303, a bent rod 304, a clamping plate 305, a rubber block 306, a groove 307, a first compression spring 308 and a cross rod 309, the two screws 301 are respectively located on the left side and the right side of the inner portion of the bottom plate 1, the screws 301 are rotatably connected with the bottom plate 1 through ball bearings, the outer side end portions of the screws 301 penetrate through the bottom plate 1, the knob 302 is fixedly connected to the outer side end portions of the screws 301, the sleeve 303 is sleeved on the outer wall of the screws 301, the inner wall of the sleeve 303 is connected with the outer wall threads of the screws 301, the bent rods 304 are fixedly connected to the front end and the rear end of the outer wall of the sleeve 303, the front side and the rear side of the inner wall of the transverse through groove are attached to the outer wall of the bent rod 304, a clamping plate 305 is fixedly connected to the top end of the bent rod 304, a plurality of grooves 307 are uniformly and equidistantly formed in the inner side surface of the clamping plate 305, a first compression spring 308 is fixedly connected to the inner end portion of each groove 307, the coefficient of the first compression spring 308 is 5-20N/CM, a cross rod 309 is fixedly connected to the other end of the first compression spring 308, the outer wall of the cross rod 309 is in clearance fit with the inner wall of each groove 307, a rubber block 306 is fixedly connected to the other end of the cross rod 309, the rubber block 306 is made of rubber materials and has certain toughness, the friction force of the exposed end portion of the cross rod 309 can be increased, the central points of the first compression spring 308, the cross rod 309 and the rubber block 306 are located on the same horizontal line.

The top of bottom plate 1 is equipped with complementary unit 4, complementary unit 4 includes pole setting 401, lantern ring 402, diaphragm 403 and horizontal bubble 404, four pole settings 401 rigid coupling respectively are in the upper surface four corners of bottom plate 1, the outer wall top below of pole setting 401 is fixed to be adjusted has lantern ring 402, the diaphragm 403 has been cup jointed to the outer wall of pole setting 401, the outer wall of pole setting 401 and the contact surface clearance fit of diaphragm 403, the lower surface of diaphragm 403 is laminated with the upper surface of lantern ring 402 mutually, the upper surface center embedding rigid coupling of diaphragm 403 has horizontal bubble 404, the equal rigid coupling in upper surface center left and right sides of diaphragm 403 has handle 6, handle 6 operating personnel of being convenient for carry out the application of force to diaphragm 403.

The center of the bottom plate 1 is provided with a top part mechanism 5, the top part mechanism 5 comprises a vertical cylinder 501, an external thread cylinder 502, a square rod 503, a long strip plate 504, a motor 505, a belt pulley 506, a belt 507, a square 508, a supporting plate 509, a circular groove 510, a second compression spring 511, a resisting rod 512, a ball 513 and a disc 514, the vertical cylinder 501 is positioned at the center of the lower surface of the bottom plate 1, the vertical cylinder 501 is rotatably connected with the center of the lower surface of the bottom plate 1 through a ball bearing, the disc 514 is fixedly connected with the bottom end of the inner wall of the vertical cylinder 501, the external thread cylinder 502 is in threaded connection with the center of the inner wall of the disc 514, the square rod 503 is arranged at the bottom end of the inner wall of the external thread cylinder 502, the outer wall of the square rod 503 is in clearance fit with the inner wall of the external thread cylinder 502, the long strip plate 504 is fixedly connected with a contact surface of the supporting leg of the long strip plate 2, the right side of the lower, a belt pulley 506 is fixedly connected to the bottom end of the motor 505, an output shaft of the motor 505 is fixedly connected to the center of the upper surface of the belt pulley 506, the belt pulley 506 is rotatably connected to the vertical cylinder 501 through a belt 507, a square 508 is fixedly connected to the top end of the external thread cylinder 502, the outer wall of the square 508 is in clearance fit with the contact surface of the bottom plate 1, a supporting plate 509 is sleeved on the outer wall of the square 508, the width of the supporting plate 509 is the same as the front-back distance between the front-back side clamping plates 305, a plurality of circular grooves 510 are uniformly and equidistantly formed on the upper surface of the supporting plate 509, a second compression spring 511 is fixedly connected to the bottom end inside the circular grooves 510, the coefficient of the second compression spring 511 is 5-10N/CM, a resisting rod 512 is fixedly connected to the other end of the second compression spring 511, a ball 513 is slidably clamped to the top end of the resisting rod 512, the, the square rod 503 can play a limiting role for the external thread cylinder 502, and the external thread cylinder 502 can slide up and down on the outer wall of the square rod 503, but the external thread cylinder 502 cannot rotate.

When the vickers hardness tester tests the irregular-shaped test sample clamp, in the using process, an operator firstly sleeves the transverse plate 403 on the outer wall of the vertical rod 401 to enable the lower surface of the transverse plate 403 to be attached to the upper surface of the sleeve ring 402, can know whether the whole clamp is in a horizontal state by observing the horizontal bubble, is beneficial to the whole clamp to be in a horizontal state, then can enable the workpiece with irregular hardness to be tested to be positioned above the supporting plate 509 to enable the surface to be tested to face upwards, the workpiece can be abutted against the ball 513, then the motor 505 is powered on, the belt pulley 506 can be rotated through the transmission of the belt 507, the vertical cylinder 501 and the disc 514 can be rotated simultaneously, the external thread cylinder 502, the square 508, the supporting plate 509, the abutting rod 512 and the workpiece can be moved upwards simultaneously, and the surface to be tested of the workpiece can be rapidly attached to the lower surface of the transverse plate 403, then stop the power supply to motor 505, in the time of operating personnel carry out clockwise rotation with the knob 302 of both sides, can make the splint 305 of both sides move to the inboard, the inboard a plurality of first compression spring 308 of splint 305 can carry out the compression of different degrees, can make a plurality of rubber blocks 306 and the side of irregular work piece counterbalance tightly press from both sides, then accomplish the tight location operation of clamp to the irregular work piece that awaits measuring, need not to use the sample to inlay the auxiliary, and then need not worry about the drawback of using the sample to inlay the auxiliary, then lifting up diaphragm 403 and pole setting 401 phase separation, then operating personnel can carry out vickers's hardness test with the help of external testing tool, after the test is accomplished with knob 302 anticlockwise rotation, take off the work piece that the test was accomplished, reset each part, be convenient for use next time.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vickers hardness tester test irregularly shaped sample anchor clamps, includes bottom plate (1), its characterized in that: four corners of the lower surface of the bottom plate (1) are fixedly connected with supporting legs (2), and two sides of the bottom plate (1) are provided with clamping mechanisms (3);

the clamping mechanism (3) comprises a screw (301), a knob (302), a sleeve (303), a bent rod (304), a clamping plate (305), a rubber block (306), a groove (307), a first compression spring (308) and a cross rod (309);

two screw rods (301) are respectively located at the left side and the right side of the inner part of the bottom plate (1), the screw rods (301) are rotatably connected with the bottom plate (1) through ball bearings, the outer side ends of the screw rods (301) penetrate through the bottom plate (1), knobs (302) are fixedly connected with the outer side ends of the screw rods (301), sleeves (303) are sleeved on the outer walls of the screw rods (301), the inner walls of the sleeves (303) are in threaded connection with the outer walls of the screw rods (301), bent rods (304) are fixedly connected with the front end and the rear end of the outer wall of the sleeves (303), the bent rods (304) penetrate through the bottom plate (1) through transverse through grooves, clamp plates (305) are fixedly connected with the top ends of the bent rods (304), a plurality of grooves (307) are uniformly and equidistantly formed in the inner side surfaces of the clamp plates (305), first compression springs (308) are fixedly connected with cross rods (309) at the inner end portions of, the other end of the cross rod (309) is fixedly connected with a rubber block (306).

2. The vickers hardness tester irregular shaped specimen holder of claim 1, wherein: the central points of the first compression spring (308), the cross rod (309) and the rubber block (306) are all located on the same horizontal line.

3. The vickers hardness tester irregular shaped specimen holder of claim 1, wherein: an auxiliary mechanism (4) is arranged above the bottom plate (1);

the auxiliary mechanism (4) comprises a vertical rod (401), a lantern ring (402), a transverse plate (403) and a horizontal bubble (404);

four pole setting (401) rigid coupling is in the upper surface four corners of bottom plate (1) respectively, the outer wall top below of pole setting (401) is fixed to be adjusted and is had the lantern ring (402), diaphragm (403) have been cup jointed to the outer wall of pole setting (401), the lower surface of diaphragm (403) is laminated with the upper surface of the lantern ring (402) mutually, the upper surface center embedding rigid coupling of diaphragm (403) has horizontal bubble (404).

4. The vickers hardness tester irregular shaped specimen holder of claim 3, wherein: handles (6) are fixedly connected to the left side and the right side of the center of the upper surface of the transverse plate (403).

5. The vickers hardness tester irregular shaped specimen holder of claim 1, wherein: the center of the bottom plate (1) is provided with a jacking mechanism (5);

the top part mechanism (5) comprises a vertical cylinder (501), an external thread cylinder (502), a square rod (503), a long strip plate (504), a motor (505), a belt pulley (506), a belt (507), a square block (508), a supporting plate (509), a circular groove (510), a second compression spring (511), a resisting rod (512), a ball (513) and a disc (514);

the vertical cylinder (501) is positioned at the center of the lower surface of the bottom plate (1), the vertical cylinder (501) is connected with the center of the lower surface of the bottom plate (1) through a ball bearing in a rotating manner, a disc (514) is fixedly connected to the bottom end of the inner wall of the vertical cylinder (501), an external thread cylinder (502) is connected to the center of the inner wall of the disc (514) in a threaded manner, a square rod (503) is arranged at the bottom end of the inner wall of the external thread cylinder (502), the outer wall of the square rod (503) is in clearance fit with the inner wall of the external thread cylinder (502), a strip plate (504) is fixedly connected to the bottom end of the square rod (503), a motor (505) is fixedly connected to the contact surface of the supporting leg (2), a belt pulley (506) is fixedly connected to the right side of the lower surface of the bottom plate (1), the bottom end of the motor (505) is fixedly connected to a belt pulley (506), the belt pulley (506) is, square (508) outer wall cup joints layer board (509), a plurality of slots (510) have been seted up to the even equidistance of upper surface of layer board (509), the inside bottom rigid coupling of slot (510) has second compression spring (511), the other end rigid coupling of second compression spring (511) has support pole (512), the top slip joint of support pole (512) has ball (513).

6. The vickers hardness tester irregular shape specimen holder as set forth in claim 5, wherein: the square rod (503) and the external thread cylinder (502) form a sliding limiting structure.