CN212180468U

CN212180468U - Device capable of synchronously realizing tensile test and bending test

Info

Publication number: CN212180468U
Application number: CN202020903667.3U
Authority: CN
Inventors: 陈松; 冯健; 荣震; 冯二彬; 徐世霖
Original assignee: Camc Surface Technology Jiangsu Co ltd
Current assignee: Camc Surface Technology Jiangsu Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-12-18
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a device capable of synchronously realizing tensile and bending tests, wherein two groups of vertically arranged moving assemblies are arranged between a base and a top plate, each moving assembly comprises a guide rod and a lead screw, the base is a hollow box body, the bottom end of the lead screw penetrates through the top plate of the hollow box body, the bottom end of the lead screw is provided with a gear, a motor is arranged in the hollow box body, a driving gear is arranged on the motor, and the gears of the two lead screws and the driving gear are connected through a belt; a movable cross beam is arranged between the base and the top plate, two ends of the movable cross beam are respectively in threaded connection with the two screw rods, the bottom surface of the top plate and the top surface of the movable cross beam are both provided with stretching assemblies, and the stretching assemblies on the bottom surface of the top plate and the top surface of the movable cross beam are positioned on the same straight line; the bottom surface of the movable beam is provided with an upper pressing assembly, and the base is provided with a lower pressing assembly. The utility model discloses both can realize tensile and bending test and go on in step, can realize the axiality again to heart automatic adjustment.

Description

Device capable of synchronously realizing tensile test and bending test

Technical Field

The utility model relates to a tensile and bending test device field especially relates to a can realize tensile and bending test's device in step.

Background

Thermal spraying technology has been widely used in many high-end manufacturing industries as a special process to improve the service life of parts and impart special properties. The testing method for judging the thermal spraying performance is mature abroad, a comprehensive testing and evaluating system is formed at home at present, but the internal coating standards of manufacturers are not disclosed. The quality judgment indexes of the coating are divided into a metallographic index, a thickness index, corresponding special performance indexes, and mechanical performance indexes represented by the adhesive force binding performance, the toughness and the tensile strength of the coating. The existing universal testing machine can be used for realizing the mechanical test, and the test standards thereof such as GB/T8641 + 1988 thermal spray coating tensile strength, GB/T8642 + 2002 thermal spray tensile bonding strength, GBT6569-2006 fine ceramic bending strength test method and the like, but the corresponding stretching tool and bending tool have the defects of inaccurate coaxiality centering, limited adjustment amplitude after the tool holds a test piece, certain dead angle, clamping process, complex holding process, need of manual experience and the like, and in addition, the stretching test or the bending test can only be carried out independently during measurement, and the simultaneous or continuous test of the stretching test and the bending test can not be realized. It usually takes 30 minutes to stretch in the test from specimen clamping preparation to specimen completion stretching to obtain a result; after stretching is finished, the stretching clamp is required to be taken down and the bending test tool is replaced again, so that the clamping bending test can be carried out, and the time is required to be about 20-30 minutes. The waiting of long-time experimental test result is continuous to the production festival, links up closely, needs to reachd the enterprise and the trade that the experiment judged the result fast and not be suitable for, the utility model discloses optimized universal tester's frock clamp structure, the work orbit that utilizes universal tester and digital quantization function will stretch and crooked ingenious combination be in the same place for tensile or bending test is synchronous or go on in succession on a test machine, and the latency of having practiced thrift sample quality and judging is original 1/2, has practiced thrift time, manpower, material resource for hot spraying production type enterprise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can realize tensile and bending test's device in step.

The utility model discloses an innovation point lies in the utility model discloses both can realize tensile and bending test and go on in step, can realize the axiality again to heart automatic adjustment.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that: a device capable of synchronously realizing tensile and bending tests comprises a base and a top plate, wherein two groups of vertically arranged moving assemblies are arranged between the base and the top plate, each moving assembly comprises a guide rod and a lead screw, two ends of each guide rod are respectively fixed on the base and the top plate, two ends of each lead screw are respectively connected with the base and the top plate through bearings, the base is a hollow box body, the bottom end of each lead screw penetrates through the top plate of the hollow box body, a gear is arranged at the bottom end of each lead screw, a motor is arranged in the hollow box body, a driving gear is arranged on each motor, and the gears of the two lead screws are connected with the driving; a movable cross beam is arranged between the base and the top plate, two ends of the movable cross beam are respectively in threaded connection with the two screw rods, a through hole for penetrating the guide rod is formed in the movable cross beam, and the guide rod can move in the through hole; the top plate bottom surface and the movable beam top surface are both provided with stretching assemblies, and the stretching assemblies of the top plate bottom surface and the movable beam top surface are positioned on the same straight line; the stretching assembly comprises a connecting rod, a connecting cap and a connecting threaded rod, the connecting cap is screwed at one end of the connecting rod to form a cavity, a through hole connected with the cavity is formed in one end, far away from the connecting rod, of the connecting cap, the connecting threaded rod comprises an external threaded rod and a hemispherical guide block located at one end of the external threaded rod, and the hemispherical guide block is located in the cavity and can rotate in the cavity; the movable cross beam bottom surface is equipped with the top pressure subassembly, be equipped with down the pressure subassembly on the base, the top pressure subassembly includes the upper bracket and is located the cylindric top pressure head of upper bracket bottom, the bottom pressure subassembly includes two lower brackets and is located the cylindric bottom pressure head at lower bracket top, cylindric top pressure head and two cylindric bottom pressure heads level and parallel arrangement, and cylindric top pressure head is located between two cylindric bottom pressure heads.

Furthermore, the base is provided with a track which is perpendicular to the axial direction of the two cylindrical lower pressure heads and is arranged in parallel, and the lower support can slide in the track. The distance between the two cylindrical lower pressing heads can be adjusted according to the situation.

Further, all be equipped with on roof bottom surface and the movable beam top surface and be used for plugging in the round cover of connecting rod tip, be equipped with the screw hole on the connecting rod, the round cover side is equipped with the connecting hole, connecting rod and round cover pass through screwed connection. The tensile assembly is convenient to replace.

The utility model has the advantages that:

1. the utility model discloses well movable beam can realize tensile and bending test going on in step when the drive of motor is down removed, the utility model discloses well sample and connecting threaded rod connect soon, because connecting threaded rod includes external screw thread pole and is located the hemisphere guide block of external screw thread pole one end, the hemisphere guide block is located the cavity and can be at the cavity internal rotation, connects the back soon at the both ends of sample and connecting threaded rod, and the sample is automatic adjustment under the pulling force effect, realizes the axiality to the heart.

Drawings

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

fig. 2 is a schematic diagram of a stretching assembly.

Fig. 3 is a perspective view of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example 1: as shown in fig. 1, 2 and 3, the device capable of synchronously realizing the tensile test and the bending test comprises a base 1 and a top plate 2, two groups of vertically arranged moving assemblies 3 are arranged between the base 1 and the top plate 2, each moving assembly 3 comprises a guide rod 4 and a lead screw 5, two ends of each guide rod 4 are respectively fixed on the base 1 and the top plate 2, two ends of each lead screw 5 are respectively connected with the base 1 and the top plate 2 through bearings, the base 1 is a hollow box body, the bottom end of each lead screw 5 penetrates through the top plate of the hollow box body, a gear 6 is arranged at the bottom end of each lead screw, a motor 7 is arranged in the hollow box body, a driving gear 8 is arranged on the motor 7, and the gears of the; a movable beam 10 is arranged between the base 1 and the top plate 2, two ends of the movable beam 10 are respectively in threaded connection with the two screw rods 5, a through hole 11 for penetrating the guide rod 4 is formed in the movable beam 10, and the guide rod 4 can move in the through hole 11; the bottom surface of the top plate 2 and the top surface of the movable beam 10 are both provided with stretching assemblies 12, and the stretching assemblies 12 on the bottom surface of the top plate 2 and the top surface of the movable beam 10 are positioned on the same straight line; the stretching assembly 12 comprises a connecting rod 13, a connecting cap 14 and a connecting threaded rod 15, the connecting cap 14 is screwed at one end of the connecting rod 13 to form a cavity 16, a through hole 17 connected with the cavity 16 is formed in one end, far away from the connecting rod 13, of the connecting cap 14, the connecting threaded rod 15 comprises an external threaded rod 15.1 and a hemispherical guide block 15.2 located at one end of the external threaded rod 15.1, and the hemispherical guide block 15.2 is located in the cavity 16 and can rotate in the cavity 16; all be equipped with the round sleeve 21 that is used for plugging in the connective bar 13 tip on 2 bottom surfaces of roof and the movable beam 10 top surface, be equipped with screw hole 13.1 on the connective bar 13, the round sleeve 21 side is equipped with connecting hole 21.1, and connective bar 13 and round sleeve 21 pass through screwed connection. The bottom surface of the movable beam 10 is provided with an upper pressing assembly 18, the base 1 is provided with a lower pressing assembly 19, the upper pressing assembly 18 comprises an upper support 18.1 and a cylindrical upper pressing head 18.2 positioned at the bottom of the upper support 18.1, the lower pressing assembly 19 comprises two lower supports 19.1 and a cylindrical lower pressing head 19.2 positioned at the top of the lower support 19.1, the cylindrical upper pressing head 18.2 and the two cylindrical lower pressing heads 19.2 are horizontally and parallelly arranged, and the cylindrical upper pressing head 18.2 is positioned between the two cylindrical lower pressing heads 19.2. The base 1 is provided with a track 20 which is perpendicular to and parallel to the axial direction of the two cylindrical lower pressing heads 19.2, and the lower support 19.1 can slide in the track 20.

In the utility model, two ends of a sample are respectively screwed on the stretching components 12 on the bottom surface of the top plate 2 and the top surface of the movable beam 10, the sample is placed on the lower pressing component 19 of the base 1, the motor 7 is started, the motor drives the driving gear 8 to rotate, the driving gear 8 drives the screw rod to rotate through the belt 9, thereby driving the movable beam 10 to move downwards, the upper part of the movable beam 10 performs a tensile test on the sample, the lower part of the movable beam 10 performs a bending test on the sample, the tensile test and the bending test are performed synchronously, meanwhile, as the connecting threaded rod 15 comprises an external threaded rod 15.1 and a hemispherical guide block 15.2 arranged at one end of the external threaded rod, the hemispherical guide block 15.2 is arranged in the cavity 16 and can rotate in the cavity 16, after the two ends of the sample are connected with the connecting threaded rod in a screwing mode, the sample is automatically adjusted under the action of tensile force, and coaxiality centering is achieved.

The described embodiments are only some, but not all embodiments of the invention. 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.

Claims

1. A device capable of synchronously realizing tensile and bending tests is characterized by comprising a base and a top plate, wherein two groups of vertically arranged moving assemblies are arranged between the base and the top plate, each moving assembly comprises a guide rod and a lead screw, two ends of each guide rod are respectively fixed on the base and the top plate, two ends of each lead screw are respectively connected with the base and the top plate through bearings, the base is a hollow box body, the bottom end of each lead screw penetrates through the top plate of the hollow box body, a gear is arranged at the bottom end of each lead screw, a motor is arranged in the hollow box body, a driving gear is arranged on each motor, and the gears of the two lead screws are connected with the driving gear; a movable cross beam is arranged between the base and the top plate, two ends of the movable cross beam are respectively in threaded connection with the two screw rods, a through hole for penetrating the guide rod is formed in the movable cross beam, and the guide rod can move in the through hole; the top plate bottom surface and the movable beam top surface are both provided with stretching assemblies, and the stretching assemblies of the top plate bottom surface and the movable beam top surface are positioned on the same straight line; the stretching assembly comprises a connecting rod, a connecting cap and a connecting threaded rod, the connecting cap is screwed at one end of the connecting rod to form a cavity, a through hole connected with the cavity is formed in one end, far away from the connecting rod, of the connecting cap, the connecting threaded rod comprises an external threaded rod and a hemispherical guide block located at one end of the external threaded rod, and the hemispherical guide block is located in the cavity and can rotate in the cavity; the movable cross beam bottom surface is equipped with the top pressure subassembly, be equipped with down the pressure subassembly on the base, the top pressure subassembly includes the upper bracket and is located the cylindric top pressure head of upper bracket bottom, the bottom pressure subassembly includes two lower brackets and is located the cylindric bottom pressure head at lower bracket top, cylindric top pressure head and two cylindric bottom pressure heads level and parallel arrangement, and cylindric top pressure head is located between two cylindric bottom pressure heads.

2. The device capable of synchronously realizing the stretching and bending tests as claimed in claim 1, wherein the base is provided with a track which is perpendicular to and parallel to the axial direction of the two cylindrical lower pressing heads, and the lower support can slide in the track.

3. The device capable of synchronously realizing the tensile test and the bending test is characterized in that round sleeves used for being plugged into the end portions of the connecting rods are arranged on the bottom surface of the top plate and the top surface of the movable cross beam, threaded holes are formed in the connecting rods, connecting holes are formed in the side surfaces of the round sleeves, and the connecting rods are connected with the round sleeves through screws.