An adjustable hardness detection device

Abstract

The utility model belongs to detection equipment technical field, concretely is a kind of adjustable hardness detection device, including work bench, the both sides of work bench are movably installed with U type connecting arm, the both sides of work bench top are movably installed with assembly plate, the middle part of assembly plate top is fixedly installed with connecting seat, the surface of one end of U type connecting arm is sleeved with connecting seat, one side of assembly plate is fixedly installed with limit frame, the middle part of limit frame top is fixedly installed with first double-shaft motor. Through the structural design of U type connecting arm, assembly plate, connecting seat, first double-shaft motor, driving gear, threaded rod, clamping block, transmission gear, the function of improving detection accuracy is realized, so the horizontal direction four sides can be used to the detection sample and be centered clamped, so as to ensure the stability of sample in detection process, simultaneously, multi-surface clamping meets the use demand of different sample shape size.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically an adjustable hardness testing device. Background Technology

[0002] In fields such as materials science, manufacturing, and quality inspection, accurate testing of material hardness is crucial. Adjustable hardness testing devices, as equipment that can flexibly adapt to different testing needs, play an important role in various hardness testing scenarios due to their adjustability and versatility.

[0003] For example, an adjustable hardness testing device for building materials, disclosed in publication number CN113607544A, specifically relates to the field of building material testing equipment. It includes a fixed frame with a placement platform at its bottom. Clamping plates are located on both sides of the inner wall of the placement platform. A mounting gear is located on the inner wall of the top of the fixed frame, with an adjusting rod at its bottom and a pressure plate at its bottom. A telescopic rod is located on the inner wall of the bottom of the fixed frame, with a square block at its top. A slot is formed at the bottom of the rotating shaft. This invention uses a servo motor to drive the rotating gear, thereby adjusting the distance between the two clamping plates. This allows the testing device to adapt to the testing of building materials of different sizes. Simultaneously, the rotation of the mounting gear adjusts the position of the pressure plate, enabling the pressure plate to perform hardness testing on different locations of the building material, resulting in more accurate test data.

[0004] However, based on the working principle proposed in the aforementioned patent, the applicant believes that the device clamps and fixes the sample to be tested by means of clamping plates on both sides. However, for irregularly shaped building materials, it is difficult to achieve stable and accurate fixation by means of clamping plates on both sides alone, and it is impossible to accurately control the centering of the sample to be tested, thereby affecting the accuracy of subsequent testing.

[0005] Therefore, an adjustable hardness testing device is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and the problem of limited clamping accuracy, this utility model proposes an adjustable hardness testing device.

[0007] The technical solution adopted by this utility model to solve its technical problem is: an adjustable hardness testing device, including a worktable, U-shaped connecting arms movably mounted on both sides of the worktable, and assembly plates movably mounted on both sides of the top of the worktable. A connecting seat is fixedly mounted in the middle of the top of the assembly plate. One end of the U-shaped connecting arm is fitted with the surface of the connecting seat. A limit frame is fixedly mounted on one side of the assembly plate. A first dual-axis motor is fixedly mounted in the middle of the top of the limit frame. A drive gear is fixedly mounted at the end of the output end of the first dual-axis motor. Threaded rods are rotatably mounted in the inner cavities on both sides of the limit frame. Clamping blocks are threadedly connected to the surface of the threaded rods. A transmission gear is fixedly mounted on one side of the surface of the threaded rods, and the transmission gear is meshed with the drive gear.

[0008] Preferably, a second drive motor is fixedly installed in the middle part of the bottom of the workbench, and the output ends on both sides of the second drive motor are set as threaded shafts, which are threadedly engaged with the U-shaped connecting arm.

[0009] Preferably, the workbench has a first T-shaped groove at each of the four corners of the top, and T-shaped sliders are fixedly installed on both sides of the bottom of the assembly plate, with the T-shaped sliders matching the first T-shaped grooves.

[0010] Preferably, an L-shaped support arm is fixedly installed on one side of the workbench, and a hydraulic cylinder is fixedly installed on one side of the top of the L-shaped support arm and perpendicular to the middle part of the workbench.

[0011] Preferably, a flange is fixedly installed at the end of the output end of the hydraulic cylinder, and a pressure plate is fixedly connected to the bottom of the flange.

[0012] Preferably, the outer side of the pressure plate is provided with a plurality of second T-shaped grooves, and a T-shaped slide bar is movably installed inside the second T-shaped grooves. The top of the T-shaped slide bar is provided with a plurality of threaded holes.

[0013] Preferably, a number of connecting ears are fixedly installed on the outer side of the pressure plate, and bolts are provided inside the connecting ears, the bolts being adapted to threaded holes.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model, through the structural design of a U-shaped connecting arm, assembly plate, connecting seat, first dual-axis motor, drive gear, threaded rod, clamping block, and transmission gear, and through the mutual cooperation between the structures, achieves the function of improving detection accuracy. Thus, the sample to be tested can be clamped in the center from four sides in the horizontal direction, thereby ensuring the stability of the sample during the detection process. At the same time, multi-sided clamping meets the usage requirements of different sample shapes and sizes, and solves the problem of limited clamping accuracy.

[0016] 2. This utility model uses the second T-shaped groove and the T-shaped slide bar to cooperate with each other, which facilitates the increase of the pressure area by horizontal extension, thereby making it convenient to make corresponding adjustments according to different sample shapes and further increasing the accuracy of subsequent detection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a rear-view diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram showing the internal structure of the limiting frame of this utility model.

[0021] Figure 4 This is a schematic diagram showing the internal structure of the pressure plate of this utility model.

[0022] In the diagram: 1. Workbench; 2. U-shaped connecting arm; 3. Assembly plate; 4. Connecting seat; 5. Limiting frame; 6. First dual-axis motor; 7. Drive gear; 8. Threaded rod; 9. Clamping block; 10. Transmission gear; 11. Second drive motor; 12. Threaded shaft; 13. First T-shaped slide rail; 14. T-shaped slider; 15. L-shaped support arm; 16. Hydraulic cylinder; 17. Flange; 18. Pressure plate; 19. Second T-shaped slide rail; 20. T-shaped slide bar; 21. Threaded hole; 22. Connecting lug; 23. Bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0025] This application discloses an adjustable hardness testing device, including a worktable 1. U-shaped connecting arms 2 are movably mounted on both sides of the worktable 1. Assembly plates 3 are movably mounted on both sides of the top of the worktable 1. A connecting seat 4 is fixedly mounted in the middle of the top of the assembly plate 3. One end of the U-shaped connecting arm 2 is fitted with the surface of the connecting seat 4. A limit frame 5 is fixedly mounted on one side of the assembly plate 3. A first dual-axis motor 6 is fixedly mounted in the middle of the top of the limit frame 5. A drive gear 7 is fixedly mounted at the end of the output end of the first dual-axis motor 6. Threaded rods 8 are rotatably mounted in the inner cavities on both sides of the limit frame 5. Clamping blocks 9 are threadedly connected to the surface of the threaded rods 8. A transmission gear 10 is fixedly mounted on one side of the surface of the threaded rods 8. The transmission gear 10 is meshed with the drive gear 7.

[0026] Reference Figure 1 and Figure 3 Through the structural design of U-shaped connecting arm 2, assembly plate 3, connecting seat 4, first dual-axis motor 6, drive gear 7, threaded rod 8, clamping block 9, and transmission gear 10, and through the mutual cooperation between the structures, the function of improving detection accuracy is realized. Thus, the sample to be tested can be clamped in the center from four sides in the horizontal direction, thereby ensuring the stability of the sample during the detection process. At the same time, multi-face clamping meets the usage requirements of different sample shapes and sizes.

[0027] A second drive motor 11 is fixedly installed in the middle part of the bottom of the workbench 1. The output ends on both sides of the second drive motor 11 are set as threaded shafts 12, and the threaded shafts 12 are threadedly engaged with the U-shaped connecting arm 2.

[0028] Reference Figure 2 The second drive motor 11 and the threaded shaft 12 work together to generate driving force to push the U-shaped connecting arm 2 to move in the opposite direction, thereby achieving the purpose of adjusting the working position of the two side limit frames 5.

[0029] The top of the workbench 1 has four corners with first T-shaped grooves 13, and the bottom of the assembly plate 3 has two sides with T-shaped sliders 14 fixedly installed. The T-shaped sliders 14 are adapted to the first T-shaped grooves 13.

[0030] Reference Figure 1 and Figure 2 The first T-shaped slide 13 and the T-shaped slider 14 work together to guide and limit the movement of the assembly plate 3 on the worktable 1, prevent the assembly plate 3 from deviating during the movement, ensure that it always moves in the specified direction, and further improve the accuracy of position adjustment.

[0031] An L-shaped support arm 15 is fixedly installed on one side of the workbench 1, and a hydraulic cylinder 16 is fixedly installed on one side of the top of the L-shaped support arm 15 and perpendicular to the middle part of the workbench 1.

[0032] Reference Figure 1 and Figure 2 The L-shaped support arm 15 facilitates the provision of installation space for the hydraulic cylinder 16, ensuring that the pressure plate 18 applies pressure to the workpiece in the correct direction.

[0033] A flange 17 is fixedly installed at the end of the output end of the hydraulic cylinder 16, and a pressure plate 18 is fixedly connected to the bottom of the flange 17.

[0034] Reference Figure 1 and Figure 4 The flange 17 facilitates the connection between the output end of the hydraulic cylinder 16 and the pressure plate 18, and also facilitates the subsequent installation, disassembly and replacement of the pressure plate 18. The pressure plate 18 facilitates contact with the workpiece and transmits the pressure applied to the sample by the output end of the hydraulic cylinder 16.

[0035] Several second T-shaped grooves 19 are provided on the outer side of the pressure plate 18. T-shaped slide bars 20 are movably installed inside the second T-shaped grooves 19. Several threaded holes 21 are provided on the top of the T-shaped slide bars 20.

[0036] Reference Figure 4 The second T-shaped groove 19 and the T-shaped slide bar 20 work together to increase the pressure area by horizontal extension, which makes it easy to adjust according to different sample shapes and further increases the accuracy of subsequent detection.

[0037] Several connecting ears 22 are fixedly installed on the outside of the pressure plate 18. Bolts 23 are provided inside the connecting ears 22, and the bolts 23 are adapted to the threaded holes 21.

[0038] Reference Figure 4 The connecting ear 22 provides space for the bolt 23 to be installed, and the bolt 23 can be used to fix the T-shaped slide bar 20 in conjunction with the connecting ear 22, thereby ensuring the stability of the T-shaped slide bar 20 during use.

[0039] Working principle: When using this device, firstly, according to the size of the workpiece to be inspected, the second drive motor 11 is started. The second drive motor 11 drives the threaded shafts 12 on both sides to rotate. Since the threaded shafts 12 are threadedly connected to the U-shaped connecting arms 2, the rotation of the threaded shafts 12 will cause the U-shaped connecting arms 2 to move linearly on the worktable 1. The U-shaped connecting arms 2 are connected to the assembly plate 3 through the connecting seat 4, which in turn drives the assembly plate 3 to move along the guide structure composed of the first T-shaped slide groove 13 and the T-shaped slider 14. After the limiting frame 5 is attached to the surface of the workpiece, the two output ends of the first dual-axis motor 6 simultaneously drive the drive gear 7 to rotate. The drive gear 7 meshes with the transmission gear 10, thereby driving the threaded rod 8 to rotate. Since the threaded rod 8 is threadedly connected to the clamping block 9, the rotation of the threaded rod 8 is converted into the linear motion of the clamping block 9. The clamping blocks 9 on both sides move towards the workpiece at the same time until the workpiece is clamped and fixed. The output end of the hydraulic cylinder 16 extends downward, driving the pressure plate 18 to move towards the workpiece. After the pressure plate 18 contacts the surface of the workpiece, the hydraulic cylinder 16 continues to apply the specified pressure.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adjustable hardness testing device, characterized in that: The system includes a workbench (1); U-shaped connecting arms (2) are movably installed on both sides of the workbench (1); assembly plates (3) are movably installed on both sides of the top of the workbench (1); a connecting seat (4) is fixedly installed in the middle part of the top of the assembly plate (3); the surface of the connecting seat (4) is sleeved on one end of the U-shaped connecting arm (2); a limit frame (5) is fixedly installed on one side of the assembly plate (3); a first dual-axis motor (6) is fixedly installed in the middle part of the top of the limit frame (5); a drive gear (7) is fixedly installed at the end of the output end of the first dual-axis motor (6); threaded rods (8) are rotatably installed in the inner cavities on both sides of the limit frame (5); a clamping block (9) is threadedly connected to the surface of the threaded rod (8); a transmission gear (10) is fixedly installed on one side of the surface of the threaded rod (8); and the transmission gear (10) is meshed with the drive gear (7).

2. The adjustable hardness testing device according to claim 1, characterized in that: A second drive motor (11) is fixedly installed in the middle part of the bottom of the workbench (1). The output ends on both sides of the second drive motor (11) are set as threaded shafts (12). The threaded shafts (12) are threadedly engaged with the U-shaped connecting arm (2).

3. The adjustable hardness testing device according to claim 1, characterized in that: The workbench (1) has four corners at the top of each of the four corners of the top of the workbench (1) and T-shaped sliders (14) are fixedly installed on both sides of the bottom of the assembly plate (3). The T-shaped sliders (14) are adapted to the first T-shaped grooves (13).

4. The adjustable hardness testing device according to claim 1, characterized in that: An L-shaped support arm (15) is fixedly installed on one side of the workbench (1), and a hydraulic cylinder (16) is fixedly installed on one side of the top of the L-shaped support arm (15) and perpendicular to the middle part of the workbench (1).

5. The adjustable hardness testing device according to claim 4, characterized in that: A flange (17) is fixedly installed at the end of the output end of the hydraulic cylinder (16), and a pressure plate (18) is fixedly connected to the bottom of the flange (17).

6. The adjustable hardness testing device according to claim 5, characterized in that: The pressure plate (18) has several second T-shaped grooves (19) on its outer side. T-shaped slide bars (20) are movably installed inside the second T-shaped grooves (19). The top of the T-shaped slide bars (20) has several threaded holes (21).

7. The adjustable hardness testing device according to claim 5, characterized in that: Several connecting ears (22) are fixedly installed on the outside of the pressure plate (18). Bolts (23) are provided inside the connecting ears (22), and the bolts (23) are adapted to the threaded holes (21).

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