Strength detection device for drawn round piece

Abstract

The utility model belongs to the field of strength detection of drawn and polished round pieces, and particularly relates to a strength detection device for drawn and polished round pieces, which comprises a Rockwell hardness tester main body and a lifting screw rod, according to the Rockwell hardness tester, the lifting screw with four long legs on the conventional Rockwell hardness tester is designed into the ruler bevel gear, and meanwhile, the electric transmission device is additionally arranged, so that when the electric transmission device runs, the lifting screw can automatically rotate, and then the lifting screw rod is driven to automatically lift up and down; and the use convenience of the Rockwell hardness tester is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of strength detection of polished round pieces, and in particular relates to a strength detection device for polished round pieces. Background Art

[0002] Polished round parts refer to round steel made by cold drawing. This type of steel usually has high strength, hardness and yield point, but poor plasticity and toughness.

[0003] At present, the following methods are commonly used to test the strength of polished round parts after production: tensile test, hardness test and impact test. Among them, Rockwell hardness tester is often used for hardness test;

[0004] For example, a Rockwell hardness tester with publication number CN219935567U includes a base, a fixed structure and a driving structure; a pressure head and an adjustment arm are arranged on the base at intervals, the adjustment arm extends toward the pressure head, and a support platform is arranged at one end of the adjustment arm close to the pressure head, and the distance between the support platform and the pressure head can be adjusted; the fixed structure includes a clamping arm and a fixed arm arranged on the side of the support platform close to the pressure head, the clamping arm includes a clamping section, a rotating part and a driving section connected in sequence, the clamping section and the driving section are arranged at an angle, and a clamping gap is formed between the fixed arm, and the rotating part is arranged on the support platform to rotate around its axis, so as to drive the clamping section to approach and move away from the fixed arm when the driving section moves; the driving structure is arranged on the support platform and is connected to the driving section to drive the driving section to move. This solution can prevent the object to be tested from accidentally running during the pressure head pressing process, improve the measurement accuracy, and has a compact structure and easy operation.

[0005] The inventors found that when the lifting screw of the Rockwell hardness tester is raised or lowered, it is necessary to manually rotate the lifting screw with four long legs. This manual rotation method is laborious and inconvenient. Figure 4 shown. Utility Model Content

[0006] The utility model aims to provide a strength detection device for a polished round piece, aiming to solve the problem of inconvenient operation of the lifting screw rod of the Rockwell hardness tester in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a strength detection device for a polished round piece, comprising a Rockwell hardness tester body and a lifting screw, wherein the Rockwell hardness tester body is rotatably connected to the lifting screw via an electric transmission device.

[0008] In order to realize the automatic rotation of the lifting screw, as a preferred strength detection device for a polished round piece of the utility model, the electric transmission device includes: a bracket, a motor and a transmission bevel gear, the bracket is fixedly mounted on the surface of the Rockwell hardness tester body, the motor is mounted on the top of the bracket, the transmission bevel gear is mounted on the output end of the motor, the lifting screw and the transmission bevel gear are meshed with each other, and the lifting screw and the lifting screw are threadedly connected.

[0009] In order to achieve the fixation of the placed polished round piece, as a preferred strength detection device for a polished round piece of the utility model, the top of the lifting screw is fixedly connected with a storage table, and an electromagnetic suction cup is embedded in the interior of the storage table.

[0010] In order to realize the control of the motor and the electromagnetic chuck, as a preferred strength detection device for polished round pieces of the utility model, the motor and the electromagnetic chuck are electrically connected to an external power supply through a control switch respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model designs the lifting screw with four long legs on the existing Rockwell hardness tester into a ruler bevel gear, and adds an electric transmission device, so that when the electric transmission device is running, the lifting screw can automatically rotate, thereby driving the lifting screw to automatically move up and down, effectively improving the convenience of using the Rockwell hardness tester.

[0013] 2. The utility model adds an electromagnetic suction cup to the storage table, so that the electromagnetic suction cup generates magnetism after being energized, thereby firmly adsorbing the placed light-pulling round piece, making the placement of the light-pulling round piece more stable and effectively improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the storage platform of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of an existing Rockwell hardness tester.

[0019] In the figure: 1. Rockwell hardness tester body; 2. Lifting screw; 3. Lifting screw; 4. Storage table; 5. Electromagnetic suction cup; 6. Bracket; 7. Motor; 8. Transmission bevel gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 The utility model provides the following technical solutions: a strength detection device for a polished round piece, comprising a Rockwell hardness tester body 1 and a lifting screw 3, wherein the Rockwell hardness tester body 1 is rotatably connected with a lifting screw 2 through an electric transmission device.

[0022] Preferably, the electric transmission device comprises: a bracket 6, a motor 7 and a transmission bevel gear 8, the bracket 6 is fixedly mounted on the surface of the Rockwell hardness tester body 1, the motor 7 is mounted on the top of the bracket 6, the transmission bevel gear 8 is mounted on the output end of the motor 7, the lifting screw 2 and the transmission bevel gear 8 are meshed with each other, and the lifting screw 2 and the lifting screw 3 are threadedly connected.

[0023] During specific use, by starting the motor 7, the motor 7 drives the transmission bevel gear 8 to rotate. Due to the engagement between the transmission bevel gear 8 and the lifting screw 2, the lifting screw 2 rotates, and finally the automatic lifting of the lifting screw 3 is realized, reducing the method of manually rotating the lifting screw 2 to lift the lifting screw 3 in the prior art, thereby improving the convenience of operation.

[0024] Preferably, the top of the lifting screw rod 3 is fixedly connected with a storage platform 4 , and an electromagnetic suction cup 5 is embedded in the storage platform 4 .

[0025] When in use, the light-pulling round piece is placed on the electromagnetic suction cup 5, and the electromagnetic suction cup 5 is energized to generate suction, thereby strongly adsorbing the light-pulling round piece, effectively improving the stability of the placement of the light-pulling round piece.

[0026] Preferably, the motor 7 and the electromagnetic chuck 5 are electrically connected to an external power source through a control switch respectively.

[0027] During specific use, the operation of the motor 7 and the electromagnetic chuck 5 can be controlled respectively by controlling the switch.

[0028] Working principle: When using the strength detection device for the polished round piece, first place the polished round piece on the electromagnetic suction cup 5, and energize the electromagnetic suction cup 5 to adsorb the polished round piece, then control the operation of the motor 7 to make the lifting screw 3 automatically rise, driving the tested polished round piece to abut against the hardness pressure head on the Rockwell hardness tester body 1 to perform a hardness test.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A strength detection device for a polished round piece, comprising a Rockwell hardness tester body (1) and a lifting screw (3), characterized in that: The Rockwell hardness tester body (1) is rotatably connected to a lifting screw (2) via an electric transmission device.

2. The strength detection device for a polished round piece according to claim 1, characterized in that: The electric transmission device comprises: a bracket (6), a motor (7) and a transmission bevel gear (8); the bracket (6) is fixedly mounted on the surface of a Rockwell hardness tester body (1); the motor (7) is mounted on the top of the bracket (6); and the transmission bevel gear (8) is mounted on the output end of the motor (7).

3. The strength detection device for a polished round piece according to claim 1, characterized in that: The lifting screw (2) and the transmission bevel gear (8) are meshed with each other.

4. The strength detection device for a polished round piece according to claim 1, characterized in that: The top of the lifting screw rod (3) is fixedly connected to a storage platform (4), and an electromagnetic suction cup (5) is embedded inside the storage platform (4).

5. The strength detection device for a polished round piece according to claim 1, characterized in that: The lifting screw (2) and the lifting screw rod (3) are threadedly connected.

6. The strength detection device for a polished round piece according to claim 2, characterized in that: The motor (7) and the electromagnetic chuck (5) are electrically connected to an external power source via a control switch respectively.

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