Six-head electronic creep testing machine

Abstract

The utility model relates to the technical field of material testing, and discloses a six-head electronic creep testing machine which comprises an equipment cabinet, the top end of the equipment cabinet is fixedly connected with a middle bedplate, the top end of the middle bedplate is detachably provided with a wiring pipe through a screw, the top end of the wiring pipe is detachably provided with an upper cross beam through a screw, and the upper cross beam is fixedly connected with the middle bedplate. The bottom end of the upper cross beam is detachably provided with a 1kN sensor through a nut, the bottom end of the 1kN sensor is fixedly connected with an elastic universal joint, the bottom end of the elastic universal joint is detachably provided with a dumbbell-shaped sample upper connecting plate through a universal joint mounting nut, and the bottom end of the dumbbell-shaped sample upper connecting plate is fixedly connected with a dumbbell-shaped sample lower connecting plate. According to the utility model, structures such as the compression spring, the elastic universal joint, the dumbbell-shaped sample lower connecting plate and the dumbbell-shaped sample upper connecting plate are matched with one another, so that when a sample is broken, certain buffer protection can be carried out, and the stress of the clamp is more uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to material testing technical field especially relates to a 6 -head electronic creep creep testing machine. BACKGROUND

[0002] In the field of material science and engineering, it is essential to understand the creep characteristics of materials for many key applications. Creep refers to the gradual accumulation of plastic deformation over time when a material is subjected to constant external force at a specific temperature. In order to accurately control the performance and applicability of materials, creep tests are usually performed on materials during their use.

[0003] After searching, Chinese patent publication No. CN102519803B discloses a multi-head micro sample creep test device and testing method. The device includes a loading system, a clamping system, a heating and temperature control system, a measurement system, and an external support. The loading system is a weight top vertical loading located on the upper part of the external support. The clamping system is fixed on the external support and located below the loading system inside the heating system. The heating system is connected to the bottom of the external support and connected to the temperature control system. The measurement system is connected to the loading system and the external support and placed on the upper part of the support. The external support connects each independent part into a multi-head creep device system. This invention solves the problem of existing creep test devices that cannot perform multi-head micro sample creep tests under low load. It provides a device and testing method that can simultaneously perform creep tests on multiple identical or different size micro samples under certain conditions. It also allows different types of creep tests including cantilever samples, three-point bending, four-point bending, and small punch specimens by replacing the clamps.

[0004] The above technology has certain improvements, but it designs multiple parts during assembly. These parts have various specifications and different connection methods, which require a lot of time and labor cost during assembly. The control system is complex, the overall integration is low, the experimental efficiency is low, and the clamps may not be uniformly stressed when the sample breaks. Therefore, a 6-head electronic creep creep testing machine is proposed to solve the above problems. Utility model content

[0005] To make up for the above shortcomings, the utility model provides a 6-head electronic creep creep testing machine, which aims to improve the problem of complex assembly and uneven stress of the clamp after the sample breaks in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a 6 -head electronic creep creep testing machine, including the equipment cabinet, the top fixed connection of equipment cabinet has the middle plate, the top of middle plate is detachably installed with the wiring tube through screw, the top of wiring tube is detachably installed with the upper crossbeam through screw, the bottom of upper crossbeam is detachably installed with 1kN sensor through the nut, the bottom of 1kN sensor is fixedly connected with the elastic universal joint, the bottom of elastic universal joint is detachably installed with the dumbbell type sample upper connecting plate through the universal joint installation nut, the bottom of dumbbell type sample upper connecting plate is fixedly connected with the dumbbell type sample lower connecting plate, the top middle part of middle plate is fixedly connected with the actuator, the top of actuator is fixedly connected with the spoke sensor, the spoke sensor is fixedly connected with the connecting arm through the up-pull tube, the top of middle plate is fixedly connected with the stand, the inner wall of connecting arm is fixedly connected with the intermediate flange type linear bearing, the bottom of dumbbell type sample lower connecting plate is fixedly connected with the internal thread cylindrical pin, the compression spring is arranged between dumbbell type sample lower connecting plate and connecting arm, wiring tube is provided with two groups, the outer wall of right -hand side wiring tube is detachably installed with touch screen through the fixed ring, the outer wall of right -hand side wiring tube is detachably installed with the hand control box through the fixed ring.

[0007] As further description of the above technical solution:

[0008] The inner wall of the intermediate flange type linear bearing is slidingly connected to the outer arc surface of the stand.

[0009] As further description of the above technical solution:

[0010] One end of the compression spring is fixedly connected to the bottom of the dumbbell type sample lower connecting plate, and the other end of the compression spring is fixedly connected to the top of the connecting arm.

[0011] As further description of the above technical solution:

[0012] The bottom of the up-pull tube is detachably installed on the top of the spoke sensor through a hexagonal cylindrical head screw, and the top of the up-pull tube is fixedly connected to the bottom of the connecting arm through a flange.

[0013] As further description of the above technical solution:

[0014] The top of the upper crossbeam is threadedly connected with a lifting ring.

[0015] As further description of the above technical solution:

[0016] The bottom of the intermediate flange type linear bearing is fixedly connected with an aluminum separation type clamping ring, and the bottom of the internal thread cylindrical pin is detachably installed on the inner wall of the connecting arm through a knurled high head screw.

[0017] The utility model has the following beneficial effects:

[0018] 1、 the utility model discloses, through the mutual cooperation between the structure such as the compression spring, the elastic universal joint, the dumbbell type sample lower connecting plate and its dumbbell type sample upper connecting plate etc. of being set, when the sample breaks, can carry out certain buffer protection at this moment, so that the stress of the fixture is more uniform.

[0019] 2、 the utility model discloses, the main frame adopts double-column portal structure, and the main machine upper crossbeam, workbench are connected into high rigidity TPHS frame structure through the stand column, and the main machine rigidity is big, and the test is long and stable and reliable. Adopt servo drive system loading: the main machine power system adopts servo motor drive, and the servo motor is driven to the movable ball screw through the gear type belt transmission of speed reducer, realizes the ascending and descending of the pipe, has transmission efficiency high, test loading stable etc. Characteristics. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A kind of main body structure schematic diagram of 6 head electronic creep creep testing machine is proposed for the utility model.

[0021] LEGEND:

[0022] 1, lifting eye; 2, upper crossbeam; 3, 1kN sensor; 4, elastic universal joint; 5, universal joint mounting nut; 6, dumbbell type sample upper connecting plate; 7, dumbbell type sample lower connecting plate; 8, wiring tube; 9, stand column; 10, touch screen; 11, hand control box; 12, fixed ring; 13, middle plate; 14, equipment cabinet; 15, actuator; 16, spoke sensor; 17, upper pull tube; 18, aluminum separation type clamp ring; 19, knurled high head screw; 20, internally threaded cylindrical pin; 21, connecting arm; 22, compression spring; 23, middle flange type linear bearing. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] REFERENCE Figure 1The utility model provides an embodiment: a kind of 6 head electronic creep creep testing machine, including equipment cabinet 14, the bottom end of equipment cabinet 14 is provided with multiple groups of supporting feet, to this can be stably supported to it, and the front end of equipment cabinet 14 is provided with protective door, protective door can be opened, the inside of equipment cabinet 14 is provided with electrical and loading device, to this facilitate overall test, this is prior art and not too much explanation, the top of equipment cabinet 14 is fixedly connected with middle table plate 13, the top of middle table plate 13 is detachably installed with wiring tube 8 by screw, middle table plate 13 can support and fix wiring tube 8, and the detachable installation of by screw is convenient to install and disassemble wiring tube 8, the top of wiring tube 8 is detachably installed with upper crossbeam 2 by screw, the bottom end of upper crossbeam 2 is detachably installed with 1kN sensor 3 by nut, the setting of upper crossbeam 2 can install 1kN sensor 3, in material tensile test, when exerting tension to material sample, 1kN sensor 3 measures the value of this tension accurately, precision can reach higher level generally, provide accurate data support for the mechanical properties (such as tensile strength, yield strength etc.) of research material, the bottom end of 1kN sensor 3 is fixedly connected with elastic universal joint 4, elastic universal joint 4 can play a certain protective effect to 1kN sensor 3, and elastic universal joint 4 allows 1kN sensor 3 to be freely adjusted angle within a certain range, the bottom end of elastic universal joint 4 is detachably installed with dumbbell type sample upper connecting plate 6 by universal joint mounting nut 5, the bottom end of dumbbell type sample upper connecting plate 6 is fixedly connected with dumbbell type sample lower connecting plate 7, and dumbbell type sample upper connecting plate 6 and dumbbell type sample lower connecting plate 7 are provided with multiple groups, when one of the group sample breaks, the rest several groups can still continue to obtain part of effective data, the top of middle table plate 13 is fixedly connected with actuator 15 in middle part, actuator 15 is a kind of device that can convert input energy (such as electric energy, hydraulic energy or pneumatic energy) into mechanical movement (such as linear motion or rotary motion), the top of actuator 15 is fixedly connected with spoke sensor 16, spoke sensor 16 is fixed at the top of actuator 15, and one of its main functions is to accurately perceive the size of force, in the working process of actuator 15, whether exerting tension or pressure, spoke sensor 16 can convert the signal of this force into electric signal and output, spoke sensor 16 is fixedly connected with connecting arm 21 by upper pull tube 17, the movement trajectory of three is consistent, the top of middle table plate 13 is fixedly connected with stand 9, stand 9 can play a guiding role, the inner wall of connecting arm 21 is fixedly connected with intermediate flange type linear bearing 23, the movement trajectory of two is consistent, the bottom end of dumbbell type sample lower connecting plate 7 is fixedly connected with internal thread cylindrical pin 20, and compression spring 22 is arranged between dumbbell type sample lower connecting plate 7 and connecting arm 21, and compression spring 22 can play a certain buffering effect, wiring tube 8 is provided with two groups, the outer wall of right wiring tube 8 is detachably installed with touch screen 10 by fixed ring 12, touch screen 10 is arranged to facilitate staff to operate and use overall device, to carry out test experiment,The outer wall of the right side wiring tube 8 is detachably installed with the hand control box 11 through the fixing ring 12, and the operator can conveniently touch the hand control box 11 when using the related equipment.

[0025] Referring to Figure 1 The inner wall of the intermediate flange type linear bearing 23 is slidably connected to the outer arc surface of the column 9, and the intermediate flange type linear bearing 23 cooperates with the column 9 to realize the up-and-down movement of the connecting arm 21 along the column 9 following the upper pull tube 17. One end of the compression spring 22 is fixedly connected to the bottom end of the dumbbell-shaped sample lower connecting plate 7, and the other end of the compression spring 22 is fixedly connected to the top end of the connecting arm 21. The elasticity of the compression spring 22 can provide a certain buffering effect when the dumbbell-shaped sample lower connecting plate 7 breaks. The bottom end of the upper pull tube 17 is detachably installed on the top end of the spoke sensor 16 through a hexagonal cylindrical head screw. The detachable setting facilitates the installation and disassembly of the spoke sensor 16 for maintenance and replacement. The top end of the upper pull tube 17 is fixedly connected to the bottom end of the connecting arm 21 through a flange. The flange connection has obvious convenience in the installation process. The installer only needs to align the flange faces of the top end of the upper pull tube 17 and the bottom end of the connecting arm 21, then insert the bolts and tighten them to complete the connection. The operation is relatively simple and standardized. The top end of the upper cross beam 2 is threadedly connected with a lifting ring 1. The setting of the lifting ring 1 facilitates the overall handling of the device. The bottom end of the intermediate flange type linear bearing 23 is fixedly connected with an aluminum separation type clamping ring 18, which can play a fixing role. The bottom end of the internal threaded cylindrical pin 20 is detachably installed on the inner wall of the connecting arm 21 through the knurled high head screw 19. The detachable setting facilitates the overall installation and replacement.

[0026] Working principle: Before conducting the material testing experiment, first use the multiple sets of support feet at the bottom end of the equipment cabinet 14 to stably place the entire testing machine on a suitable working site. Open the protective door at the front end of the equipment cabinet 14 to perform necessary inspection and maintenance on the internal electrical and loading devices to ensure that they are in normal working condition. When preparing to test the material sample, use the lifting ring 1 to move the device to the designated operating area (if necessary). The operator selects a suitable dumbbell-shaped sample according to the experimental requirements, assembles the dumbbell-shaped sample upper connecting plate 6 with the dumbbell-shaped sample lower connecting plate 7, and detachably installs the bottom end of the dumbbell-shaped sample lower connecting plate 7 on the inner wall of the connecting arm 21 through the internal threaded cylindrical pin 20 and the knurled high head screw 19 to ensure stable connection. At the same time, the compression spring 22 is compressed and installed between the dumbbell-shaped sample lower connecting plate 7 and the connecting arm 21 to provide buffer protection for possible subsequent sample breakage. During the experimental operation, the operator can conveniently operate through the touch screen 10 and the hand control box 11. The touch screen 10 provides an intuitive man-machine interface, which facilitates the input of experimental parameters and the viewing of real-time data. The hand control box 11 allows the operator to start, pause, or adjust the experimental process at any time near the equipment.

[0027] When the test is started, the actuator 15 operates according to the preset program, and the force signal fed back by the spoke sensor 16 is used to accurately control the output force, so that the tensile force or the pressure is applied to the sample; at this time, the 1kN sensor 3 synchronously measures the external force suffered by the sample, and the two cooperate to accurately record the mechanical response of the material in the force process. Since the upper connecting plate 6 and the lower connecting plate 7 of the dumbbell-shaped sample are provided with multiple groups, when one group of sample is broken, the remaining groups can still work and continue to obtain effective data, so that the whole experiment is not interrupted due to the failure of one group of sample, and more comprehensive data for in-depth study of material properties are provided. Moreover, once the sample is broken, the compression spring 22 can quickly play a buffering role to avoid the impact force generated in the breaking moment from causing damage to the equipment, and the aluminum separation type clamp ring 18 plays an auxiliary fixing role to maintain the stability of the overall structure. During the whole process, the wiring pipe 8 plays a role in regulating and protecting various cables to ensure smooth transmission of electrical signals and ensure that the six-head electronic creep testing machine can efficiently and stably complete the mechanical property testing task of the material.

[0028] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A 6-spool electro-crvptometer creep testing machine comprising an equipment cabinet (14), characterized in that: The top end of the equipment cabinet (14) is fixedly connected with a middle plate (13), the top end of the middle plate (13) is detachably installed with a wiring pipe (8) through a screw, the top end of the wiring pipe (8) is detachably installed with an upper cross beam (2) through a screw, the bottom end of the upper cross beam (2) is detachably installed with a 1kN sensor (3) through a nut, the bottom end of the 1kN sensor (3) is fixedly connected with an elastic universal joint (4), the bottom end of the elastic universal joint (4) is detachably installed with a dumbbell-shaped sample upper connecting plate (6) through a universal joint installation nut (5), the bottom end of the dumbbell-shaped sample upper connecting plate (6) is fixedly connected with a dumbbell-shaped sample lower connecting plate (7), the top end of the middle plate (13) is fixedly connected with an actuator (15), the top end of the actuator (15) is fixedly connected with a spoke sensor (16), the spoke sensor (16) is fixedly connected with a connecting arm (21) through an upper pull pipe (17), the top end of the middle plate (13) is fixedly connected with a stand column (9), the inner wall of the connecting arm (21) is fixedly connected with a middle flange type linear bearing (23), the bottom end of the dumbbell-shaped sample lower connecting plate (7) is fixedly connected with an internally threaded cylindrical pin (20), a compression spring (22) is arranged between the dumbbell-shaped sample lower connecting plate (7) and the connecting arm (21), the wiring pipe (8) is provided with two groups, the outer wall of the right wiring pipe (8) is detachably installed with a touch screen (10) through a fixing ring (12), and the outer wall of the right wiring pipe (8) is detachably installed with a manual control box (11) through a fixing ring (12).

2. A 6-spool electronic creep testing machine according to claim 1, characterized in that: The inner wall of the middle flange type linear bearing (23) is slidably connected to the outer arc surface of the stand column (9).

3. A six headed electron creep machine for creep testing according to claim 1 wherein: One end of the compression spring (22) is fixedly connected to the bottom end of the dumbbell-shaped sample lower connecting plate (7), and the other end of the compression spring (22) is fixedly connected to the top end of the connecting arm (21).

4. A six headed electro-crimping creep testing machine as claimed in claim 1, wherein: The bottom end of the upper pull pipe (17) is detachably installed at the top end of the spoke sensor (16) through a hexagonal cylindrical head screw, and the top end of the upper pull pipe (17) is fixedly connected to the bottom end of the connecting arm (21) through a flange.

5. A six headed electro-crimping creep testing machine as claimed in claim 1, wherein: The top end of the upper cross beam (2) is threadedly connected with a lifting ring (1).

6. A six headed electro-crimping creep testing machine as claimed in claim 1, wherein: The bottom end of the middle flange type linear bearing (23) is fixedly connected with an aluminum separation type clamping ring (18), and the bottom end of the internally threaded cylindrical pin (20) is detachably installed on the inner wall of the connecting arm (21) through a knurled high head screw (19).

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