Forge piece hardness testing device

Abstract

The utility model particularly relates to the field of forge piece hardness testing equipment, and discloses a forge piece hardness testing device which comprises a supporting frame, a hydraulic cylinder is fixedly arranged at the top end of the supporting frame, the output end of the hydraulic cylinder penetrates through the top end of the supporting frame and is fixedly provided with a supporting plate, and a telescopic rod is fixedly arranged in the middle of the bottom end of the supporting plate. And a high-strength spring is wound on the outer surface of the telescopic rod, a detection head is fixedly arranged at the bottom end of the telescopic rod, third notches are formed in the positions, close to the four corners, of the supporting plate, and limiting rods are inserted into the third notches. According to the utility model, through the arrangement of the supporting plate, the limiting rods and the third notches, the third notches are symmetrically formed in the four corners of the supporting plate in a circular shape for the limiting rods to be inserted, so that the limiting rods limit the lateral displacement of the supporting plate, the deviation of the detection head when the detection head is extruded downwards is avoided, and the vertical displacement precision of the detection head is improved; therefore, the detection precision of the detection head is improved.

Description

Technical Field

[0001] The utility model belongs to the field of forging hardness detection equipment, and particularly relates to a forging hardness test device. Background Art

[0002] The hardness of forgings is a very meaningful engineering quantity, belonging to the category of material mechanics. The main application significance of hardness detection in factories is to ensure the wear resistance or certain mechanical strength of mechanical parts. In order to remove processing stress, adjust the structure, refine the grains, and prepare good conditions for subsequent cutting, mechanical forgings should be subjected to appropriate heat treatment after processing so that the hardness value of the workpiece is within a certain hardness range. Therefore, a forging hardness test device is needed for detection.

[0003] Existing technical solutions such as the publication number: CN218646781U. The utility model discloses a multifunctional forging hardness detection device, including: an adjusting mechanism, the adjusting mechanism includes a base, symmetric sliding grooves are opened on the outside of the base, symmetric sliders are slidably connected inside the sliding grooves, the side of the same-side sliders close to each other is connected with a toothed plate, and a gear meshing with the two toothed plates on the same side is rotatably connected inside the sliding groove. An installation plate is commonly connected to the outside of the two sliders; a clamping mechanism, the clamping mechanism includes a clamping opening, the clamping opening is opened through the outside of the installation plate, a plurality of sliding rods are slidably connected to the side of the installation plate close to the clamping opening, and a rotating groove is opened on the side of the installation plate close to the sliding rods. The utility model can quickly adjust the size of the clamping mechanism according to the size of the forging to be detected, which is convenient for fixing the forging and subsequent removal. At the same time, it can fix forgings with different shapes, and the fixing effect is better, improving the functionality of the detection device and being more practical.

[0004] For the above technical solutions, there are the following technical problems: when using this kind of forging hardness test device, since the detection head is directly driven by the output end of the hydraulic cylinder, it may cause the detection head to deviate when contacting the forging, thereby affecting the accuracy of forging hardness detection. Content of the Utility Model

[0005] The utility model provides a forging hardness test device, aiming to solve the problem that when using this kind of forging hardness test device, since the detection head is directly driven by the output end of the hydraulic cylinder, it may cause the detection head to deviate when contacting the forging, thereby affecting the accuracy of forging hardness detection.

[0006] The present utility model is realized as follows. A forging hardness test device includes a support frame. At the top position of the support frame, a hydraulic cylinder is fixedly installed. The output end of the hydraulic cylinder penetrates through the top of the support frame and is fixedly installed with a support plate. At the middle position of the bottom end of the support plate, a telescopic rod is fixedly installed. A high-strength spring is wound around the outer surface of the telescopic rod. At the bottom end of the telescopic rod, a detection head is fixedly installed. At the positions near the four corners of the support plate, three notches are respectively opened. Limit rods are inserted into the interiors of the three notches.

[0007] Preferably, the support frame is U-shaped. At the main position of the bottom end of the support frame, a bottom plate is fixedly installed. The bottom ends of the four limit rods are all fixedly installed at the top end of the bottom plate. The top ends of the bottom plates are all fixedly installed at the inner bottom end of the support frame, improving the stability of the bottom plate support.

[0008] Preferably, on the two side walls of the support frame, one notch is opened. The two notches are both circular and symmetrically distributed, facilitating the installation of the forging.

[0009] Preferably, on the surface of the bottom plate, two notches are symmetrically opened. Limit plates are slidably connected to the interiors of the two notches. Limit barrels are inserted into the side walls of the limit plates near the horizontal positions of the notches. Two groups of limit components are threadedly connected to the side walls of the two limit barrels, improving the convenience of fixing the forging.

[0010] Preferably, on the side walls of the two limit plates near the notches, two groups of toothed plates are fixedly installed. The two groups of toothed plates are centrosymmetrically distributed. The external dimensions of the toothed plates are all adapted to the internal dimensions of the notches, improving the stability of the movement of the limit plates.

[0011] Preferably, at the middle positions of the two notches, driving gears are rotatably connected. The two driving gears are meshed with the two groups of toothed plates in sequence. The driving gears are all fixedly installed at the output ends of the motors through couplings, improving the convenience of the opposite movement of the limit plates.

[0012] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0013] Firstly, by providing a support plate, limit rods and the three notches, the three notches are symmetrically opened in a circular shape at the four corner positions of the support plate for the limit rods to be inserted, so that the limit rods restrict the lateral displacement of the support plate, thereby avoiding the deviation when the detection head presses downwards, improving the accuracy of the vertical displacement of the detection head, and thus improving the accuracy of the detection by the detection head; Secondly, by providing a telescopic rod and a high-strength spring, the telescopic rod can limit the lateral displacement of the high-strength spring during compression, improving the stability of the compression of the high-strength spring. The high-strength spring has a certain elasticity. Under the action of the elastic strain of the high-strength spring, the stability of the contact between the detection head and the forging can be adjusted, thereby improving the accuracy of the forging hardness detection. Brief Description of the Drawings

[0014] Figure 1 This is the front three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 This is the side-view structural schematic diagram of the support frame of the present utility model.

[0016] Figure 3 This is the top-view structural schematic diagram of the base of the present utility model.

[0017] Figure 4 This is the Figure 1 enlarged structural schematic diagram of part A in the present utility model.

[0018] The reference numerals in the drawings are: 1, support frame; 2, hydraulic cylinder; 3, support plate; 4, limiting rod; 5, telescopic rod; 6, high-strength spring; 7, detection head; 8, notch one; 9, bottom plate; 10, notch two; 11, limiting plate; 12, notch three; 13, driving gear; 14, limiting barrel; 15, limiting assembly; 16, toothed plate. Detailed Description of the Preferred Embodiments

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects and not to describe a specific order.

[0020] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appearing in various places in the specification is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0021] Please refer to Figures 1-4, the embodiments provided by the present utility model: A forging hardness test device, including a support frame 1, a hydraulic cylinder 2 is fixedly installed at the top of the support frame 1 through bolts, the output end of the hydraulic cylinder 2 penetrates through the top of the support frame 1 and is fixedly installed with a support plate 3 through a coupling, a telescopic rod 5 is fixedly installed at the middle position of the bottom end of the support plate 3 by welding, a high-strength spring 6 is wound around the outer surface of the telescopic rod 5, the top of the high-strength spring 6 is welded to the bottom end of the support plate 3, the bottom end of the high-strength spring 6 is fixedly connected to the bottom end of the telescopic rod 5, the telescopic rod 5 can limit the lateral displacement of the high-strength spring 6 during compression, improving the stability of the compression of the high-strength spring 6. The high-strength spring 6 has a certain elasticity, and under the action of the elastic strain of the high-strength spring 6, the stability of the contact between the detection head 7 and the forging can be adjusted, thereby improving the accuracy of the forging hardness detection. At the positions near the four corners of the support plate 3, notch threes 12 are respectively opened, and limiting rods 4 are inserted into the interiors of the notch threes 12. The support frame 1 is U-shaped, and a bottom plate 9 is fixedly installed at the main part of the bottom end of the support frame 1. The bottom ends of the four limiting rods 4 are fixedly installed at the top end of the bottom plate 9, and the top ends of the bottom plate 9 are fixedly installed at the inner bottom end of the support frame 1, improving the stability of the support of the bottom plate 9. The notch threes 12 are circularly symmetrically opened at the four corner positions of the support plate 3 for the limiting rods 4 to be inserted, so that the limiting rods 4 limit the lateral displacement of the support plate 3, thereby preventing the detection head 7 from shifting when pressed downward, improving the accuracy of the vertical displacement of the detection head 7, and thus improving the accuracy of the detection of the detection head 7.

[0022] Notch ones 8 are opened on the two side walls of the support frame 1, and the two notch ones 8 are both circular and symmetrically distributed, facilitating the installation of the forging. On the surface of the bottom plate 9, two notch twos 10 are symmetrically opened, and limiting plates 11 are slidably connected to the interiors of the two notch twos 10. Limiting barrels 14 are inserted into the side walls of the limiting plates 11 near the horizontal positions of the notch ones 8. Two groups of limiting components 15 are threadedly connected to the side walls of the two limiting barrels 14. Each limiting component 15 includes a screw threadedly connected to the limiting barrel 14 and an arc-shaped plate. The arc-shaped plate is rotatably connected to the bottom end of the screw, thus facilitating the adjustment of the angle of the arc-shaped plate. By rotating the screw, the two arc-shaped plates can be driven to symmetrically squeeze towards each other, thereby improving the convenience of fixing the forging. Two groups of toothed plates 16 are fixedly installed on the side walls of the two limiting plates 11 near the notch twos 10. The two groups of toothed plates 16 are centrosymmetrically distributed. The external dimensions of the toothed plates 16 are all adapted to the internal dimensions of the notch twos 10, improving the stability of the movement of the limiting plates 11. Driving gears 13 are rotatably connected to the middle positions of the two notch twos 10. The two driving gears 13 are sequentially engaged with the two groups of toothed plates 16. The driving gears 13 are all fixedly installed at the output ends of motors through couplings. By starting the driving gears 13, the two groups of toothed plates 16 can be driven to move towards each other, improving the convenience of adjusting the positions of the limiting plates 11, and thus facilitating the fixation of forgings of different sizes.

[0023] Working principle: When this kind of forging hardness test device is in use, the operator first connects to an external power supply, and then inserts the forging into the inside of the two limiting barrels 14 through the notch one 8. The two ends of the forging can be fixed by rotating the limiting component 15. Then, start the hydraulic cylinder 2 to drive the support plate 3 to move downward, so as to drive the detection head 7 to squeeze the forging to complete the hardness detection. Four notches three 12 are symmetrically arranged in a circular shape at the four corner positions of the support plate 3 for the limiting rods 4 to be inserted, so that the limiting rods 4 limit the lateral displacement of the support plate 3, thereby preventing the detection head 7 from shifting when pressing downward, improving the accuracy of the vertical displacement of the detection head 7, and thus improving the accuracy of the detection by the detection head 7. Secondly, the telescopic rod 5 can limit the lateral displacement of the high-strength spring 6 during compression, improving the stability of the compression of the high-strength spring 6. The high-strength spring 6 has a certain elasticity, and under the action of the elastic strain of the high-strength spring 6, the stability of the contact between the detection head 7 and the forging can be adjusted, thereby improving the accuracy of the forging hardness detection.

[0024] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be adopted in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0025] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above-mentioned unit division may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0026] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present invention according to the circumstances or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A forging hardness testing device, characterized in that: The invention comprises a support frame (1): a hydraulic cylinder (2) is fixedly provided at the top position of the support frame (1); the output end of the hydraulic cylinder (2) penetrates through the top position of the support frame (1) and is fixedly provided with a support plate (3); a telescopic rod (5) is fixedly provided at the middle position of the bottom end of the support plate (3); a high-strength spring (6) is wound around the outer surface of the telescopic rod (5); a detection head (7) is fixedly provided at the bottom end of the telescopic rod (5); three slots (12) are respectively provided at the positions of the four corners of the support plate (3); and a limit rod (4) is respectively inserted into the inside of the three slots (12).

2. A forging hardness testing device according to claim 1, characterized in that: The support frame (1) is U-shaped, and a bottom plate (9) is fixedly arranged at the bottom end of the support frame (1), the bottom ends of the four limit rods (4) are fixedly arranged at the top end of the bottom plate (9), and the top end of the bottom plate (9) is fixedly arranged at the inner bottom end of the support frame (1).

3. A forging hardness testing device according to claim 2, characterized in that: The two side walls of the support frame (1) are provided with slots (8), and the two slots (8) are both circular and symmetrically distributed.

4. A forging hardness testing device according to claim 2, characterized in that: Two slots (10) are symmetrically provided on the surface of the bottom plate (9), and the interiors of the two slots (10) are both slidably connected to limit plates (11), and the side walls of the limit plates (11) near the horizontal position of the slots (8) are both plugged with limit barrels (14), and the side walls of the two limit barrels (14) are both threadedly connected with two groups of limit components (15).

5. A forging hardness testing device according to claim 4, characterized in that: Two groups of tooth plates (16) are fixedly arranged on the side walls of the two limit plates (11) close to the second slot (10), and the two groups of tooth plates (16) are symmetrically distributed around the center, and the external dimensions of the tooth plates (16) are compatible with the internal dimensions of the second slot (10).

6. A forging hardness testing device according to claim 5, characterized in that: The middle positions of the two notches (10) are both rotatably connected with a driving gear (13), and the two driving gears (13) are meshed with two sets of toothed plates (16) in sequence. The driving gears (13) are both fixed to the output end of the motor through a coupling.

Images