CN206740556U - Rockwell apparatus and Rockwell apparatus component - Google Patents

Abstract

The utility model belongs to the technical field of testing instruments, in particular to a Rockwell hardness tester and a Rockwell hardness tester assembly. The Rockwell hardness tester includes a base and a Rockwell hardness tester detection device. The base is provided with a through hole selectively interacting with the Rockwell hardness testing device. The base includes a bearing surface for contacting with the workpiece to be tested, the bearing surface is a magnetic surface, and the Rockwell hardness testing device is arranged on the surface opposite to the bearing surface of the base. It uses magnetic suction to fix the Rockwell hardness tester and the object to be tested, and does not use support or clamping to detect and fix the object to be tested, which expands the scope of use of the Rockwell hardness tester and is suitable for large steel workpieces Hardness testing.

Description

Rockwell hardness tester and Rockwell hardness tester components

technical field

The utility model belongs to the technical field of test instruments, in particular to a test instrument for testing the hardness of a metal surface, in particular to a Rockwell hardness tester and a Rockwell hardness tester assembly.

Background technique

Because the Rockwell hardness tester is easy to operate, the indentation is small, and the hardness measurement range is wide, the existing metal materials generally use the Rockwell hardness tester to measure the hardness. However, the Rockwell hardness tester is a desktop structure and can only be used in the laboratory. For large workpieces, such as large castings, forgings and large mold steels, hardness testing needs to be carried out by sampling or making samples, and on-site testing cannot be realized. At the same time, the existing Rockwell hardness testers basically adopt the method of supporting the object to be tested or clamping the object to be tested for detection, which greatly limits the size and shape of the object to be tested by the Rockwell hardness tester, and then reduces the size of the Rockwell hardness tester. The scope of use of the hardness tester.

Utility model content

The purpose of this utility model is to provide a Rockwell hardness tester, which uses magnetic suction to fix the Rockwell hardness tester and the object to be tested, and the object to be tested does not use support or clamping to detect and fix the object, which expands the Rockwell hardness. The scope of use of the meter is suitable for hardness testing of large steel workpieces.

Another object of this utility model is to provide a Rockwell hardness tester assembly, which uses a servo motor and a reducer to control the detection of the Rockwell hardness tester and increase the detection force, thereby increasing the available capacity of the Rockwell hardness tester assembly. range of test forces, and the assembly is easy to operate.

Embodiments of the utility model are achieved in that:

A Rockwell hardness tester comprises a base and a Rockwell hardness tester detection device. The base is provided with a through hole selectively interacting with the Rockwell hardness testing device. The base includes a bearing surface for contacting with the workpiece to be tested, the bearing surface is a magnetic surface, and the Rockwell hardness testing device is arranged on the surface opposite to the bearing surface of the base.

In a preferred embodiment of the present invention, the above-mentioned Rockwell hardness tester also includes a gantry. The gantry is fixedly connected to the surface opposite to the bearing surface of the base, and the gantry is connected to the Rockwell hardness testing device.

In a preferred embodiment of the present invention, the Rockwell hardness tester further includes a moving device for moving the detection device of the Rockwell hardness tester. The moving device is respectively connected with the gantry frame and the Rockwell hardness testing device.

In a preferred embodiment of the utility model, the above-mentioned moving device includes a lead screw, a slider, a gear and a servo motor. The servo motor is fixedly connected with the gantry frame, the servo motor is connected with the gear, the gear meshes with the slide block, the slide block is sleeved outside the lead screw, and the lead screw is connected with the Rockwell hardness testing device.

In a preferred embodiment of the present invention, the above moving device further includes a reducer, and the servo motor and the slider are respectively connected to the reducer.

In a preferred embodiment of the present invention, the above-mentioned Rockwell hardness testing device includes a pressure applying component. The pressure applying component is connected with the lead screw.

In a preferred embodiment of the present invention, the above-mentioned pressure applying assembly includes a pressure sensor and a pressure head. The pressure head is connected with the end of the lead screw close to the bearing surface, and the pressure sensor is sheathed outside the lead screw.

In a preferred embodiment of the present invention, the detection device of the Rockwell hardness tester further includes a position sensor for detecting the displacement change of the lead screw, and the position sensor is fixedly connected with the gantry.

In a preferred embodiment of the present invention, the Rockwell hardness tester further includes a display control device. The display control device is fixedly connected with the gantry frame, and the display control device is communicatively connected with the position sensor, the servo motor and the pressure sensor.

A Rockwell hardness tester assembly includes the above-mentioned Rockwell hardness tester.

The beneficial effect of the embodiment of the utility model is that: the Rockwell hardness tester of the utility model is provided with a through hole and a magnetic bearing surface on the base, so that the object to be detected can interact with the Rockwell hardness tester through magnetic force, neither The object to be tested needs to be supported, and the object to be tested does not need to be clamped. The test can be completed by only touching one side of the workpiece to be tested. It can test the hardness of large steel workpieces. At the same time, the pressure is increased through the servo motor and the reducer, which expands the range of test force that can be provided, and expands the detection range of the Rockwell hardness tester. The Rockwell hardness tester is easy to operate and can meet the requirements of most large industrial parts. Hardness testing requirements.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the structural representation of the Rockwell hardness tester provided by the first embodiment of the utility model;

Fig. 2 is the bottom view of the Rockwell hardness tester provided by the first embodiment of the utility model;

3 is a schematic structural diagram of the mobile device provided by the first embodiment of the present invention;

Fig. 4 is a schematic structural view of the Rockwell hardness tester provided by the second embodiment of the present invention.

Icons: 100-Rockwell hardness tester; 101-base; 110-Rockwell hardness tester detection device; 103-bearing surface; 105-through hole; 107-gantry; 120-moving device; 121-screw; 123-slide Block; 125-servo motor; 127-gear; 111-pressure application assembly; 113-pressure sensor; 115-pressure head; 130-display control device; 131-display; 117-position sensor; 129-reducer.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the terms "first", "second" and the like are only used for distinguishing descriptions, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "communication", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Below in conjunction with the accompanying drawings, some embodiments of the present utility model will be described in detail. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

first embodiment

As shown in FIG. 1 and FIG. 2 , this embodiment provides a Rockwell hardness tester 100 a , a base 101 and a Rockwell hardness tester detection device 110 . The base 101 is provided with a through hole 105 selectively interacting with the Rockwell hardness testing device 110 . The base 101 includes a bearing surface 103 for contacting with the workpiece to be tested. The bearing surface 103 is a magnetic surface.

The base 101 interacts with the object to be inspected to fix the object to be inspected so that the Rockwell hardness testing device 110 can detect the hardness of the object to be inspected. The base 101 is a cuboid, and the shape of the cuboid is regular, which is convenient for placing the base 101 and reduces the occupied space of the base 101 . It should be noted that the base 101 may also be in other shapes, such as a cube, a cylinder, and the like.

The base 101 includes a bearing surface 103 for contacting the workpiece to be tested, and the bearing surface 103 is a magnetic surface. The bearing surface 103 is the bottom surface of the base 101 when the Rockwell hardness tester 100a is used vertically. Setting the bottom surface of the base 101 as the bearing surface 103 is more conducive to the detection of bulky objects by the Rockwell hardness tester 100a and expands the application range of the Rockwell hardness tester 100a. The bearing surface 103 is a magnetic surface, so that the bearing surface 103 can generate magnetic adsorption with the object to be detected, such as a steel plate, iron plate, etc., thereby increasing the force between the base 101 and the object to be detected, and further fixing the object to be detected. Preventing the object to be detected from sliding during the detection process ensures the accuracy of the detection result of the Rockwell hardness tester 100a. It should be noted that the bearing surface 103 is magnetic, and it can be made by adhering a layer of magnetic thin layer on the surface of the bearing surface 103, or spraying magnetic materials on the bearing surface 103, or directly using magnetic substances to prepare The base 101 makes the carrying surface 103 magnetic. Preferably, the base 101 is an electromagnetic chuck.

Furthermore, the through hole 105 on the base 101 is a hole that runs through the entire base 101 , that is, the Rockwell hardness testing device 110 selectively interacts with the object to be tested through the through hole 105 . When it is necessary to detect the hardness of the object to be detected, the Rockwell hardness tester 110 passes through the through hole 105 and then interacts with the object to be detected to detect the hardness of the object to be detected. When no detection is performed, the Rockwell hardness tester detection device 110 does not pass through the through hole 105 .

Further, the Rockwell hardness tester 100a also includes a gantry 107 . The gantry 107 is used to fix the Rockwell hardness tester 110 and other components of the Rockwell hardness tester 100a, which is the basic framework of the Rockwell hardness tester 100a. The opposite surface of the gantry 107 and the bearing surface 103 of the base 101 is fixedly connected, that is, the gantry 107 is arranged on the upper surface of the base 101, and the gantry 107 and the base 101 are fixedly connected by screws to increase the force of the gantry 107 and the base 101 , to prevent the Rockwell hardness testing device 110 from sliding during the testing process, thereby affecting the testing results. Furthermore, the gantry 107 is connected to a Rockwell hardness testing device 110 .

The Rockwell hardness tester 100a further includes a moving device 120 for moving the Rockwell hardness tester detection device 110 . The moving device 120 is respectively connected with the gantry 107 and the Rockwell hardness testing device 110 . When detection is required, the moving device 120 works so that the Rockwell hardness tester detection device 110 moves, and then passes through the through hole 105 to interact with the object to be detected for detection. After the detection is completed or when a new object to be tested needs to be detected , first drive the mobile device 120 to work, so that the Rockwell hardness tester 110 moves away from the through hole 105, analyze the detected object or place a new object to be detected, and then drive the mobile device 120 to make the Rockwell hardness tester detect The device 110 performs detection, and repeats this repeatedly. The mobile device 120 is used to reduce manpower, improve the automation of the detection of the Rockwell hardness tester 100a, and ensure the accuracy of detection.

Further, as shown in FIG. 3 , the moving device 120 includes a lead screw 121 , a slider 123 and a servo motor 125 . The servo motor 125 is fixedly connected to the gantry 107 , the servo motor 125 is connected to the slider 123 , the slider 123 is sleeved outside the lead screw 121 , and the lead screw 121 is connected to the Rockwell hardness testing device 110 . The surface of the slide block 123 in contact with the lead screw 121 has a screw thread matched with the thread of the lead screw 121, the outer surface of the slide block 123 is provided with a toothed structure, and a gear 127 is also arranged between the slide block 123 and the servo motor 125, the gear 127 The teeth mesh with the toothed structure on the outer surface of the slider 123 , while the servomotor 125 interacts with the base circle of the gear 127 . When the moving device 120 is required to work, the servo motor 125 works, the rotating shaft of the servo motor 125 rotates, and then drives the gear 127 to rotate, and the teeth of the gear 127 drive the slider 123 to rotate, and the slider 123 interacts with the lead screw 121 to make the lead screw 121 do The up and down movement in the vertical direction finally realizes the up and down movement of the Rockwell hardness testing device 110 in the vertical direction. The movement of the Rockwell hardness tester 110 is controlled by a servo system, which improves the automation of the Rockwell hardness tester 100a and is easy to operate, and can meet the Rockwell hardness test requirements of most large industrial parts.

Further, the Rockwell hardness testing device 110 includes a pressure applying component 111 , and the pressure applying component 111 is connected with a lead screw 121 . When performing hardness testing, the pressure applying component 111 acts on the object to be tested and applies pressure to it, so as to detect the deformation of the object to be tested, and then realize the hardness test of the object to be tested. The pressure applying component 111 is connected to the lead screw 121 , so that when the lead screw 121 moves, the pressure applying component 111 can move, which facilitates the operation of the Rockwell hardness tester 100a.

It should be noted that the pressure applying component 111 and the lead screw 121 may be fixedly connected, such as screw-fixed, bolt-fixed, or detachably connected. The fixed connection ensures that the pressure applying component 111 can fully interact with the object to be detected when the pressure is applied, and reduces the sliding or deformation of the pressure applying component 111 when the pressure is too high, thereby ensuring the accuracy of the detection result. The detachable connection is adopted to facilitate the replacement of the pressure applying component 111 , and it is possible to detect objects of different materials, which expands the application range of the Rockwell hardness tester 100a.

Further, the pressure applying component 111 includes a pressure sensor 113 and a pressure head 115 . The pressure head 115 is fixedly connected to an end of the lead screw 121 close to the bearing surface 103 , and the pressure sensor 113 is sheathed outside the lead screw 121 . The pressure sensor 113 is used to detect the pressure of the indenter 115 on the object to be tested, and determine the hardness of the object to be tested by comparing the applied pressure with the deformation of the object to be tested. The indenter 115 is used to selectively act on the object to be tested and apply pressure to it, so as to realize the hardness detection of the object to be tested by the Rockwell hardness tester 100a. It should be noted that the pressure head 115 and the lead screw 121 can be fixedly connected or detachably connected. Simultaneously, indenter 115 can be the indenter 115 of single character, for example, indenter 115 is only diamond conical indenter 115 or hardened steel ball indenter 115, indenter 115 also can be combined indenter 115, for example indenter 115 can be The indenter 115 is a combination of a diamond conical indenter 115 and a quenched steel ball indenter 115 .

Further, the Rockwell hardness tester 100a also includes a display control device 130 . The display control device 130 is fixedly connected with the gantry 107 , and the display control device 130 is in communication connection with the servo motor 125 and the pressure sensor 113 . The display control device 130 is used to automatically control the opening and closing of components such as the servo motor 125 and the pressure sensor 113, realizing the automation of the Rockwell hardness tester 100a. The display control device 130 includes a display 131 and a control system, the display 131 is fixedly connected to the gantry 107, and the display 131, the servo motor 125 and the pressure sensor 113 all communicate with the control system.

The utility model also provides a Rockwell hardness tester assembly, which includes the Rockwell hardness tester 100a of this embodiment.

In this embodiment, the operation method and principle of the Rockwell hardness tester:

Place the object to be detected on the bottom of the Rockwell hardness tester, that is, the bottom of the base, that is, the object to be detected is in contact with the bearing surface, and then is magnetically fixedly connected to the base through the magnetism of the bearing surface. Then the control system controls the movement of the servo motor, the rotation of the servo motor shaft drives the gear to rotate, the gear drives the slider to rotate, the slider drives the screw to move downward, the screw drives the pressure head and the pressure sensor downward, and the pressure head passes through The through hole acts on the object to be detected, and the indenter continues to move downward to squeeze the surface of the object to be detected. Through the pressure transmitted by the pressure sensor to the control system, the control system controls the servo motor to continue to rotate so that the indenter continues to squeeze the object to be detected; or the control system controls the servo motor to stop moving, and then separates the object to be detected from the bearing surface. The deformation of the object is detected for detection, and then the hardness of the object to be detected is obtained.

second embodiment

Referring to Fig. 4, the basic structure of the Rockwell hardness tester 100b provided by this embodiment is similar to that of the Rockwell hardness tester 100a provided by the first embodiment, the difference is that the moving device 120 of the Rockwell hardness tester 100b provided by this embodiment also includes a deceleration 129, the Rockwell hardness testing device 110 also includes a position sensor 117.

The servo motor 125 controls the indenter 115 to squeeze the object to be detected, but the power of the servo motor 125 is effective at this time, so the pressure given by the indenter 115 to the object to be detected is also limited, so the objects that can be detected by the Rockwell hardness tester are reduced range, at the same time, the applied pressure is not enough to accurately detect the hardness of the object to be detected. In order to solve this technical problem, the utility model adds a speed reducer 129 between the servo motor 125 and the slider 123 . At this time, after the reducer 129 is installed, the servo motor 125 is connected to the reducer 129, and the reducer 129 is connected to the slider 123, and the outer surface of the slider 123 is still provided with a toothed structure.

The speed reducer 129 can reduce the rotating speed and increase the torque, and then slow down the moving speed of the indenter 115, increase the force of the indenter 115 on the object to be tested, expand the range of test force that can be provided, and expand the use of the Rockwell hardness tester 100b range, enhancing the practicality of the Rockwell Hardness Tester 100b.

When testing the hardness of the object to be tested, after applying sufficient pressure to the object to be tested, it is necessary to perform deformation detection on the object to be tested, and then judge the hardness of the object to be tested by combining the pressure and deformation test results. Using the above method for hardness testing is too cumbersome to operate, and the number of equipment used is large, which reduces the accuracy of the testing results. In order to solve this technical problem, this implementation adopts a position sensor 117, which is used to detect the change of the displacement of the lead screw 121, and the position sensor 117 is fixedly connected with the gantry 107. Since the lead screw 121 is connected with the indenter 115, the indenter 115 exerts pressure on the object to be detected, and the object to be detected is deformed and dented downward after being subjected to pressure. There is a certain distance between the object to be detected and the indenter 115, and the indenter 115 requires Continue to act on the object to be detected and apply pressure, the indenter 115 must move downward, therefore, the lead screw 121 must also move downward, and then the amount of deformation of the object to be detected can be known by detecting the displacement of the lead screw 121, reducing The operation steps are simplified and manpower is saved.

To sum up, the Rockwell hardness tester of the utility model provides a through hole on the base and has a magnetic bearing surface, so that the object to be tested can interact with the Rockwell hardness tester through magnetic force, and neither needs to support the object to be tested, nor There is no need to clamp the object to be tested, and the test can be completed by only touching one side of the workpiece to be tested. It can test the hardness of large steel workpieces. At the same time, the pressure is increased through the servo motor and the reducer, which expands the range of test force that can be provided, and expands the detection range of the Rockwell hardness tester. The Rockwell hardness tester is easy to operate and can meet the requirements of most large industrial parts. Hardness testing requirements.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a Rockwell hardness tester is characterized in that it comprises a base and a Rockwell hardness tester detection device; the base is provided with a through hole selectively acting on the Rockwell hardness tester detection device, and the base includes The bearing surface used for contacting with the workpiece to be tested, the bearing surface is a magnetic surface, and the Rockwell hardness testing device is arranged on the surface of the base opposite to the bearing surface. 2. The Rockwell hardness tester according to claim 1, wherein the Rockwell hardness tester also includes a gantry, and the gantry is fixedly connected to the surface opposite to the bearing surface of the base, The gantry is connected with the Rockwell hardness testing device. 3. Rockwell hardness tester according to claim 2, is characterized in that, described Rockwell hardness tester also comprises the moving device that is used to move described Rockwell hardness tester detection device, and described moving device is connected with described gantry respectively The frame is connected with the Rockwell hardness testing device. 4. Rockwell hardness tester according to claim 3, is characterized in that, described moving device comprises screw, slide block, gear and servomotor; Described servomotor is fixedly connected with described portal frame, and described servomotor It is connected with the gear, the gear meshes with the slider, the slider is sleeved outside the lead screw, and the lead screw is connected with the Rockwell hardness testing device. 5 . The Rockwell hardness tester according to claim 4 , wherein the moving device further comprises a speed reducer, and the servo motor and the slider are respectively connected to the speed reducer. 6 . The Rockwell hardness tester according to claim 4 , wherein the detection device of the Rockwell hardness tester comprises a pressure applying component, and the pressure applying component is connected with the screw. 7 . 7. The Rockwell hardness tester according to claim 6, wherein the pressure applying assembly includes a pressure sensor and an indenter, and the indenter is connected to an end of the screw near the bearing surface, the The pressure sensor is sheathed outside the lead screw. 8. Rockwell hardness tester according to claim 7, is characterized in that, described Rockwell hardness tester detecting device also comprises the position sensor that is used to detect described screw displacement change, and described position sensor is connected with described gantry Fixed connection. 9. Rockwell hardness tester according to claim 8, is characterized in that, described Rockwell hardness tester also comprises display control device, and described display control device is fixedly connected with described portal frame, and described display control device is all connected with The position sensor, the servo motor and the pressure sensor are connected in communication. 10. A Rockwell hardness tester assembly, characterized in that it comprises the Rockwell hardness tester according to any one of claims 1-9.