CN216718096U - Test device for rapidly determining material terminal hardenability - Google Patents
Test device for rapidly determining material terminal hardenability Download PDFInfo
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- CN216718096U CN216718096U CN202220003121.1U CN202220003121U CN216718096U CN 216718096 U CN216718096 U CN 216718096U CN 202220003121 U CN202220003121 U CN 202220003121U CN 216718096 U CN216718096 U CN 216718096U
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Abstract
The utility model discloses a test device for rapidly determining the hardenability of a material tail end, and belongs to the technical field of hardness detection devices. The device comprises a cross beam, a lead screw and a base, wherein the cross beam is sleeved on a rod body of the lead screw, a sample table is loaded on the surface of the base, and a sample is placed on the surface of the sample table; a hydraulic loading pressure head system is fixedly arranged at the bottom of the cross beam; one side of the base is provided with a control system, the output end of the control system is connected with a hydraulic oil source, and the output end of the hydraulic oil source is connected with a hydraulic loading pressure head system through an oil pipe. The load is provided by the actuating cylinder, the actuating cylinder is fixed on the cross beam, the oil pipe provides a power source, the hydraulic oil drives the detection pressure head to apply the load on the sample, the data of the displacement sensor on the detection pressure head system is collected, the displacement data is substituted into a Rockwell hardness calculation formula, the HRC hardness value of 10 points can be rapidly obtained, and the efficiency is obviously higher than that of the traditional point-by-point test mode.
Description
Technical Field
The utility model relates to the technical field of hardness detection devices, in particular to a test device for rapidly determining the hardenability of a material tail end.
Background
In the steel industry, a large amount of steel materials need to be subjected to heat treatment to obtain good toughness, so that the service life of parts can be prolonged, the weight of the parts can be reduced, and the method has important practical significance. The end hardenability test is a common method for evaluating the comprehensive properties of materials after heat treatment, and the measured Rockwell hardness is important reference data for guiding the production of steel materials and the heat treatment of parts.
In the conventional end hardenability test, according to the GB/T225 standard, a sample is generally processed into a standard sample after an end hardenability test, and HRC hardness values are measured at intervals of a certain distance on the surface of the sample within a range of 25mm in the axial direction by using a Rockwell hardness tester, and 10 measurement points are counted.
Currently there are two main ways to measure hardness: firstly, marking points are made on a sample, and manual point-by-point measurement is carried out, wherein the method has the main defects of low efficiency and easy error of measurement point distance; in another mode, an automatic measuring table is adopted to automatically measure the hardness, the device automatically measures point by point, the efficiency is slightly high, the error of the measuring point distance is small, but the measuring time of a single sample is still long, and is usually about 10 minutes.
Chinese patents CN 213068444U, CN 209927647U and CN 111751236 a disclose a rockwell hardness measuring device for steel materials, respectively, which is slightly faster than manual measurement, but only one hardness point can be measured each time, and the efficiency is still insufficient; chinese patent CN 212321349U discloses a plastic hardness tester, which is used for rapid determination of non-metal plastic hardness. The hardness tester can measure the Brinell hardness of a plurality of points on a plastic sample at one time, has higher efficiency than that of the traditional plastic hardness tester, but has relatively small applied load and cannot be used for the end quenching hardness test of high-strength metal, particularly steel samples.
The utility model relates to a Rockwell hardness tester for measuring the hardenability of the tail end of a sample, which is convenient to operate and high in working efficiency.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model aims to overcome the defects of the prior art and provides a test device for rapidly determining the hardenability of the tail end of a material.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
the utility model relates to a test device for rapidly determining the hardenability of the tail end of a material, which comprises a cross beam, screw rods and a base, wherein the upper part of the base is provided with the screw rods, the screw rods are provided with two groups and are arranged at intervals, the cross beam is sleeved on the rod body of the screw rods, the upper and lower positions of the cross beam can be adjusted by rotating the screw rods, the surface of the base is provided with a sample table, and a sample is placed on the surface of the sample table;
the hydraulic loading pressure head system is fixedly arranged at the bottom of the cross beam, a plurality of groups of hydraulic loading pressure head systems are arranged at the bottom of the cross beam at intervals, and the input end of the hydraulic loading pressure head system is connected with an oil pipe;
one side of the base is provided with a control system, the output end of the control system is connected with a hydraulic oil source, and the output end of the hydraulic oil source is connected with a hydraulic loading pressure head system through an oil pipe.
Furthermore, the hydraulic loading pressure head system is provided with ten groups, namely a first pressure head system, a second pressure head system, a third pressure head system, a fourth pressure head system, a fifth pressure head system, a sixth pressure head system, a seventh pressure head system, an eighth pressure head system, a ninth pressure head system and a tenth pressure head system.
Furthermore, each group of hydraulic loading pressure head system consists of a detection pressure head, a force value sensor, an actuating cylinder and a displacement sensor, wherein the actuating cylinder is clamped and fixed at the bottom of the cross beam, the input end of the actuating cylinder is connected with a hydraulic oil source through an oil pipe, the output end of the actuating cylinder is provided with the detection pressure head, and the surface of the detection pressure head is provided with the force value sensor and the displacement sensor.
Furthermore, the surface of the sample is provided with points to be measured, the bottoms of the detection pressure heads vertically point to the points to be measured, the distance between the detection pressure heads of the hydraulic loading pressure head systems is matched with the distance between the points to be measured, and the ten groups of hydraulic loading pressure head systems are mutually connected in parallel.
Furthermore, the force value sensor is used for controlling the loading force, the displacement sensor is used for collecting the displacement value of the detection pressure head, the force value sensor and the displacement sensor are both 0.5-level precision, and the lower end of the detection pressure head is a standard 120-degree diamond assembly and is used for pressing in a sample.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
the utility model provides a load through an actuating cylinder, is fixed on a cross beam, provides a power source through an oil pipe, drives a detection pressure head to apply the load on a sample through hydraulic oil, starts a host system, a hydraulic oil source and a control system during testing, fixes the sample on a sample table, moves the cross beam provided with a hydraulic loading pressure head system to a proper position, enables a point to be tested on the sample to be matched with the position of the detection pressure head, opens a computer control software, sends a command to each pressure head respectively, the detection pressure head starts to apply an initial test force, applies a main test force after holding for a certain time, keeps for a plurality of seconds, removes the main test force, collects data of a displacement sensor on the detection pressure head, substitutes the displacement data into a Rockwell hardness calculation formula, can quickly obtain HRC hardness values of 10 points, and has the efficiency obviously higher than that of a traditional point-by-point testing mode.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a distribution diagram of points to be measured on the surface of a sample according to the present invention;
fig. 3 is a structural composition diagram of the hydraulic loading ram system of the present invention.
In the figure: 1. a cross beam; 2. a lead screw; 3. a base; 4. a sample stage; 5. sampling; 6. a hydraulically loaded ram system; 61. a first ram system; 62. a second ram system; 63. a third ram system; 64. a fourth ram system; 65. a fifth ram system; 66. a sixth ram system; 67. a seventh ram system; 68. an eighth ram system; 69. a ninth ram system; 610. a tenth ram system; 6001. detecting a pressure head; 6002. a force value sensor; 6003. a cylinder; 6004. a displacement sensor; 7. a control system; 8. a source of hydraulic oil; 9. and (4) an oil pipe.
Detailed Description
The utility model is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1-3, the test device for rapidly determining the material end hardenability of the embodiment includes a cross beam 1, a lead screw 2 and a base 3, the base 3 bears the whole host system, the lead screw 2 is arranged on the upper portion of the base 3, the lead screws 2 are arranged in two groups and are arranged at intervals, the cross beam 1 is sleeved on the rod body of the lead screw 2, the up-and-down position of the cross beam 1 can be adjusted by rotating the lead screw 2, a sample table 4 is borne on the surface of the base 3, a sample 5 is placed on the surface of the sample table 4, and the sample table 4 is used for placing and fixing the sample 5;
the bottom of the cross beam 1 is fixedly provided with a hydraulic loading pressure head system 6, the hydraulic loading pressure head systems 6 are provided with a plurality of groups and are arranged at the bottom of the cross beam 1 at intervals, and the input end of the hydraulic loading pressure head system 6 is connected with an oil pipe 9;
one side of the base 3 is provided with a control system 7, the control system 7 consists of a computer and a controller, the computer is operated to send commands to the controller, the controller transmits various signals to each power unit to apply load, collect data such as force value and displacement, and automatically guide the data into the software to calculate the hardness value.
The output end of the control system 7 is connected with a hydraulic oil source 8, the output end of the hydraulic oil source 8 is connected with the hydraulic loading pressure head system 6 through an oil pipe 9, the control system 17 controls the host system and the hydraulic oil source 8, and the load is applied to the sample 5 through the hydraulic power system.
The hydraulic loading pressure head system 6 is provided with ten groups, namely a first pressure head system 61, a second pressure head system 62, a third pressure head system 63, a fourth pressure head system 64, a fifth pressure head system 65, a sixth pressure head system 66, a seventh pressure head system 67, an eighth pressure head system 68, a ninth pressure head system 69, a tenth pressure head system 610 and ten groups of pressure head systems, wherein the positions of the pressure head systems are respectively matched with the position of the hardness point to be detected on the sample 5.
Each group of hydraulic loading pressure head system 6 consists of a detection pressure head 6001, a force value sensor 6002, an actuating cylinder 6003 and a displacement sensor 6004, the actuating cylinder 6003 is clamped and fixed at the bottom of the cross beam 1, the input end of the actuating cylinder 6003 is connected with a hydraulic oil source 8 through an oil pipe 9, the output end of the actuating cylinder 6003 is provided with the detection pressure head 6001, and the surface of the detection pressure head 6001 is provided with the force value sensor 6002 and the displacement sensor 6004.
The load is applied to the sample 5 by the actuating cylinder 6003 fixed to the cross member 1 and driven by the oil pipe 9 to apply a load to the sample 5 by the hydraulic oil driving detection ram 6001.
The surface of the sample 5 is provided with points to be measured, the bottoms of the detection pressure heads 6001 vertically point to the points to be measured, the distance between the detection pressure heads 6001 of the hydraulic loading pressure head systems 6 is matched with the distance between the points to be measured, and the ten groups of hydraulic loading pressure head systems 6 are arranged in parallel.
The force value sensor 6002 is used for controlling the loading force, the displacement sensor 6004 is used for collecting the displacement value of the detection pressure head 6001, the force value sensor 6002 and the displacement sensor 6004 are both 0.5-level precision, the lower end of the detection pressure head 6001 is a standard 120-degree diamond assembly and is used for pressing in a sample 5, and the servo feedback system is used for adjusting the hydraulic oil volume to accurately control the loading force and collect the displacement value of the pressure head.
The utility model provides load through the actuating cylinder 6003, is fixed on the beam 1, provides power source through the oil pipe 9, the detection pressure head 6001 is driven by hydraulic oil to apply load to the test sample 5, during test, the host system, the hydraulic oil source 8 and the control system 7 are started, the test sample 5 is fixed on the sample table 3, the beam 1 provided with the hydraulic loading pressure head system 6 is moved to a proper position, the positions of the point to be tested on the sample 5 are matched with the positions of the detection pressure heads 6001, the computer control software is opened, a command is sent to each pressure head, 10 detection pressure heads 6001 start to apply initial test force firstly, after a certain time of load holding, applying a main test force, keeping for several seconds, removing the main test force, collecting data of the displacement sensors 6004 on all 10 detection indenters 6001, substituting the displacement data into a Rockwell hardness calculation formula, the HRC hardness value of 10 points can be quickly obtained, and the efficiency is obviously higher than that of the traditional point-by-point test mode.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (5)
1. The utility model provides a test device of terminal hardenability of spot test material ability, includes crossbeam (1), lead screw (2) and base (3), its characterized in that: the upper part of the base (3) is provided with a lead screw (2), the lead screws (2) are arranged in two groups at intervals, a beam (1) is sleeved on the rod body of the lead screw (2), the lead screw (2) is rotated to adjust the upper position and the lower position of the beam (1), the surface of the base (3) is provided with a sample table (4), and a sample (5) is placed on the surface of the sample table (4);
the hydraulic loading pressure head system (6) is fixedly installed at the bottom of the cross beam (1), a plurality of groups of hydraulic loading pressure head systems (6) are arranged at the bottom of the cross beam (1) at intervals, and the input end of each hydraulic loading pressure head system (6) is connected with an oil pipe (9);
one side of the base (3) is provided with a control system (7), the output end of the control system (7) is connected with a hydraulic oil source (8), and the output end of the hydraulic oil source (8) is connected with a hydraulic loading pressure head system (6) through an oil pipe (9).
2. The test device for rapidly determining the end hardenability of a material according to claim 1, wherein: the hydraulic loading pressure head system (6) is provided with ten groups, namely a first pressure head system (61), a second pressure head system (62), a third pressure head system (63), a fourth pressure head system (64), a fifth pressure head system (65), a sixth pressure head system (66), a seventh pressure head system (67), an eighth pressure head system (68), a ninth pressure head system (69) and a tenth pressure head system (610).
3. The test device for rapidly determining the end hardenability of a material according to claim 2, wherein: every group hydraulic loading pressure head system (6) constitute by detecting pressure head (6001), power value sensor (6002), actuating cylinder (6003), displacement sensor (6004), actuating cylinder (6003) clamp and fix in crossbeam (1) bottom, the input of actuating cylinder (6003) passes through oil pipe (9) and is connected with hydraulic oil source (8), the output of actuating cylinder (6003) is provided with and detects pressure head (6001), the surface mounting who detects pressure head (6001) has power value sensor (6002), displacement sensor (6004).
4. A test device for rapidly determining the terminal hardenability of a material according to claim 3, wherein: the surface of the sample (5) is provided with points to be measured, the bottoms of the detection pressure heads (6001) vertically point to the points to be measured, the distance between the detection pressure heads (6001) of the hydraulic loading pressure head systems (6) is matched with the distance between the points to be measured, and the ten groups of hydraulic loading pressure head systems (6) are arranged in parallel.
5. A test device for rapidly determining the terminal hardenability of a material according to claim 3, wherein: the force value sensor (6002) is used for controlling loading force, the displacement sensor (6004) is used for collecting the displacement value of the detection pressure head (6001), the force value sensor (6002) and the displacement sensor (6004) are both 0.5-level precision, and the lower end of the detection pressure head (6001) is a standard 120-degree diamond assembly and is used for pressing in a sample (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220003121.1U CN216718096U (en) | 2022-01-04 | 2022-01-04 | Test device for rapidly determining material terminal hardenability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220003121.1U CN216718096U (en) | 2022-01-04 | 2022-01-04 | Test device for rapidly determining material terminal hardenability |
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| Publication Number | Publication Date |
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| CN216718096U true CN216718096U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220003121.1U Active CN216718096U (en) | 2022-01-04 | 2022-01-04 | Test device for rapidly determining material terminal hardenability |
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| CN (1) | CN216718096U (en) |
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- 2022-01-04 CN CN202220003121.1U patent/CN216718096U/en active Active
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