Calibration auxiliary device for tension and pressure testing machine

Abstract

The utility model provides a tension and pressure testing machine calibration auxiliary device, and belongs to the technical field of testing machine calibration. The calibration auxiliary device for the tension and pressure testing machine comprises an auxiliary assembly and a butt joint assembly, the auxiliary assembly comprises an upper abutting plate, a lower abutting plate, a connecting rod, a sliding frame, a rotating plate, a force measuring ring and a sliding rod, the butt joint assembly comprises fixed columns and a semicircular plate, the fixed columns are arranged on one side of the lower abutting plate and one side of the sliding rod, and the semicircular plate is arranged on the other side of the lower abutting plate. By arranging an upper abutting plate, a lower abutting plate, a connecting rod, a sliding frame, a rotating plate, a force measuring ring and a sliding rod, the orientation of the force measuring ring can be adjusted by means of rotation of the rotating plate, so that the device is suitable for calibration auxiliary use of a tension testing machine and a pressure testing machine, and the practicability is improved; the clamp of the tension testing machine can be switched to be matched and stably clamped, plane extrusion of a pressure testing machine can also be adapted, and the test accuracy is improved.

Description

Technical Field

[0001] This application relates to the field of testing machine calibration, and more specifically, to an auxiliary device for calibrating tensile and compressive testing machines. Background Technology

[0002] Testing machines play a crucial role in the tensile, compressive, and bending mechanical property testing of metals. The accuracy of force values ​​measured by tensile testing machines is paramount in mechanical property testing. Regarding the calibration and verification of metrological accuracy, current force sensors primarily measure force using two methods: force rings and strain gauges. Force rings represent force through their deformation; the greater the deformation, the greater the force. Strain gauge sensors primarily measure changes in force by observing the change in resistance of the strain gauge as the force changes.

[0003] CN216559993U discloses a reverse force measuring fixture for calibrating a tensile testing machine. In use, the first connector and the second connector are connected to the upper and lower tensile joints of the tensile testing machine, respectively. Then, a pressure sensor (e.g., a force measuring ring) is placed between the upper frame of the fixed frame and the base of the movable frame. The tensile testing machine is started, and the tensile motion of the tensile testing machine is converted into the compression motion of the upper frame and the base on the pressure sensor by the reverse force measuring fixture of this utility model. Thus, the tensile force of the tensile testing machine is detected by the pressure sensor, and the detection value of the pressure sensor is used as the calibration value (i.e., the true value).

[0004] However, the above solution has some drawbacks: the above solution relies on the upper frame and base to squeeze the sensor for measurement, which is difficult to adapt to the calibration of the pressure testing machine. In addition, the tensile testing machine is generally tested by clamping the object with a clamp, but the first and second connectors are not very convenient for clamping, resulting in low convenience. Utility Model Content

[0005] To overcome the above deficiencies, this application provides a calibration auxiliary device for tensile and compressive testing machines, which aims to improve the problems mentioned in the background art.

[0006] This application provides a calibration auxiliary device for a tensile and compressive testing machine, including auxiliary components and docking components.

[0007] The auxiliary components include an upper abutment plate, a lower abutment plate, a connecting rod, a sliding frame, a rotating plate, a force measuring ring, and a sliding rod. The connecting rod is disposed between the upper abutment plate and the lower abutment plate. The sliding frame is slidably sleeved on the connecting rod. The rotating plate is rotatably disposed within the sliding frame and is provided with a positioning knob. The force measuring ring is fixedly connected to one side of the rotating plate. The sliding rod is fixedly connected to the sliding frame and slides through the upper abutment plate.

[0008] The docking assembly includes a fixed post and a semi-circular plate. The fixed post is provided on one side of both the lower abutment plate and the sliding rod, and the semi-circular plate is rotatably connected to the fixed post.

[0009] In one specific implementation, the sliding frame is C-shaped, and a slider is provided on the outside of the sliding frame, the slider being slidably fitted onto the connecting rod.

[0010] In the above implementation process, the sliding frame slides along the connecting rod by setting a slider to slide on the connecting rod.

[0011] In one specific implementation, the positioning knob is threaded through the sliding frame, and the rotating plate has a positioning groove, with the positioning knob and the positioning groove being adapted to each other.

[0012] In the above process, by opening a positioning groove, adjusting the position of the rotating plate by rotating it, and then screwing the positioning knob into the positioning groove, the rotating plate can be positioned and locked.

[0013] In one specific implementation, the rotating plate is provided with an extension edge that abuts against the sliding frame.

[0014] In the above implementation process, by setting an extension edge to abut against the sliding frame, the pressure of the rotating plate on the sliding frame is kept stable.

[0015] In one specific implementation, two sliding rods are symmetrically arranged, and the two sliding rods are fixedly connected to a connecting plate.

[0016] In the above implementation process, a connecting plate is set up to connect the two sliding rods.

[0017] In one specific implementation, the connecting plate is fixedly connected to a top column, and the semi-circular plate abuts against the top column.

[0018] In the above implementation process, a top column is set to abut against and support the two semicircular plates when they are rotated and unfolded.

[0019] In one specific implementation, the two semicircular plates are provided with anti-slip textures on the side away from each other.

[0020] In the above process, by setting anti-slip texture, the tightness between the semi-circular plate and the tensile testing machine fixture is improved, thereby enhancing the stability of the clamping.

[0021] In one specific implementation, the force-measuring ring is bolted to one side of the rotating plate.

[0022] The above implementation process ensures stable installation and convenient assembly / disassembly.

[0023] Beneficial effects: This application provides a calibration auxiliary device for tensile and compressive testing machines. By setting up an upper support plate, a lower support plate, a connecting rod, a sliding frame, a rotating plate, a force measuring ring, and a sliding rod, the orientation of the force measuring ring can be adjusted by rotating the rotating plate. This makes it suitable for auxiliary calibration of tensile and compressive testing machines, improving its practicality. By setting up a fixed column and a semi-circular plate, it can switch the clamping fit of the tensile testing machine and stably clamp it. It can also be adapted to the planar extrusion of the compressive testing machine, improving the accuracy of the test. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the calibration auxiliary device for tensile and compressive testing machines provided in the embodiments of this application;

[0026] Figure 2 A schematic diagram of the auxiliary component structure provided for the embodiments of this application;

[0027] Figure 3 A schematic diagram of the rotating plate structure provided for an embodiment of this application;

[0028] Figure 4 A schematic diagram of the force measuring ring structure provided for an embodiment of this application;

[0029] Figure 5 A schematic diagram of a semi-circular plate structure provided for an embodiment of this application.

[0030] In the diagram: 100-Auxiliary component; 110-Upper abutment plate; 120-Lower abutment plate; 130-Connecting rod; 140-Sliding frame; 141-Slider; 150-Rotating plate; 151-Positioning groove; 152-Extension edge; 160-Force measuring ring; 170-Positioning knob; 180-Sliding rod; 181-Connecting plate; 182-Top column; 200-Docking component; 210-Fixing column; 220-Semicircular plate; 221-Anti-slip texture. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0032] Please see Figures 1-5 This application provides a calibration auxiliary device for a tensile and compressive testing machine, including an auxiliary component 100 and a docking component 200.

[0033] Please see Figure 1 , 2 3. The auxiliary component 100 includes an upper abutment plate 110, a lower abutment plate 120, a connecting rod 130, a sliding frame 140, a rotating plate 150, a force measuring ring 160, and a sliding rod 180. The connecting rod 130 is disposed between the upper abutment plate 110 and the lower abutment plate 120. The sliding frame 140 is slidably sleeved on the connecting rod 130. The rotating plate 150 is rotatably disposed within the sliding frame 140 and is provided with a positioning knob 170. The force measuring ring 160 is fixedly connected to one side of the rotating plate 150. The sliding rod 180 is fixedly connected to the sliding frame 140 and slides through the upper abutment plate 110.

[0034] The docking assembly 200 includes a fixed post 210 and a semi-circular plate 220. The lower abutment plate 120 and the sliding rod 180 are both provided with a fixed post 210. The semi-circular plate 220 is rotatably connected to the fixed post 210. By setting a slider 141 to slide on the connecting rod 130, the sliding frame 140 can slide along the connecting rod 130.

[0035] Specifically, the positioning knob 170 is threaded through the sliding frame 140, and the rotating plate 150 has a positioning groove 151. The positioning knob 170 and the positioning groove 151 are compatible. By opening the positioning groove 151, after rotating and adjusting the position of the rotating plate 150, the positioning knob 170 is screwed into the positioning groove 151, so that the rotating plate 150 can be positioned and locked.

[0036] It should be noted that the rotating plate 150 is provided with an extension edge 152, which abuts against the sliding frame 140. By providing the extension edge 152, it is used to abut against the sliding frame 140, ensuring that the pressure of the rotating plate 150 on the sliding frame 140 is stable.

[0037] In one specific implementation, two sliding rods 180 are symmetrically arranged, and the two sliding rods 180 are fixedly connected to a connecting plate 181, which is used to connect the two sliding rods 180.

[0038] In one specific implementation, the force-measuring ring 160 is bolted to one side of the rotating plate 150 for stable installation and easy disassembly and assembly.

[0039] Please see Figure 1 , 2 4 and 5, the docking assembly 200 includes a fixed post 210 and a semi-circular plate 220. The lower abutment plate 120 and the sliding rod 180 are both provided with a fixed post 210 on one side, and the semi-circular plate 220 is rotatably connected to the fixed post 210.

[0040] The connecting plate 181 is fixedly connected to the top column 182, and the semicircular plate 220 abuts against the top column 182. The top column 182 is used to abut against and support the semicircular plate 220 when the two semicircular plates 220 are rotated and unfolded.

[0041] Among them, the two semicircular plates 220 are provided with anti-slip textures 221 on the side away from each other. By providing anti-slip textures 221, the tightness between the semicircular plates 220 and the tensile testing machine fixture is improved, and the stability of the clamping is improved.

[0042] The working principle of this tensile and compressive testing machine calibration auxiliary device is as follows: During use, when calibrating the tensile testing machine, the rotating plate 150 is adjusted to rotate, causing the force-measuring ring 160 to rotate towards the upper abutment plate 110. Then, the positioning knob 170 is screwed into the positioning groove 151 to lock the rotating plate 150 in place. The two semicircular plates 220 are rotated to fit together, facilitating a stable and secure clamping of the semicircular plates 220 by the tensile testing machine. During the pulling process, the rotating plate 150, in conjunction with the abutment plate 110, compresses the force-measuring ring 160, thereby performing calibration. When calibrating the compressive testing machine... When using the force testing machine, first turn and loosen the positioning knob 170, flip the rotating plate 150 to drive the force measuring ring 160 to rotate towards the lower abutment plate 120, rotate the two semi-circular plates 220 to unfold and abut against the top column 182, so that they are first attached to the compression testing machine. When pressing down, the rotating plate 150 cooperates with the lower abutment plate 120 to compress and calibrate the force measuring ring 160. This is suitable for auxiliary calibration of tensile testing machines and compression testing machines. It can switch to adapt to the clamps of the tensile testing machine and clamp stably, and it can also adapt to the planar compression of the compression testing machine, improving the accuracy of the test and improving its practicality.

[0043] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A calibration auxiliary device for a tensile and compressive testing machine, characterized in that, include An auxiliary component (100) includes an upper abutment plate (110), a lower abutment plate (120), a connecting rod (130), a sliding frame (140), a rotating plate (150), a force measuring ring (160), and a sliding rod (180). The connecting rod (130) is disposed between the upper abutment plate (110) and the lower abutment plate (120). The sliding frame (140) is slidably sleeved on the connecting rod (130). The rotating plate (150) is rotatably disposed within the sliding frame (140) and is provided with a positioning knob (170). The force measuring ring (160) is fixedly connected to one side of the rotating plate (150). The sliding rod (180) is fixedly connected to the sliding frame (140) and slides through the upper abutment plate (110). The docking assembly (200) includes a fixed post (210) and a semi-circular plate (220). The fixed post (210) is provided on one side of the lower abutment plate (120) and the sliding rod (180). The semi-circular plate (220) is rotatably connected to the fixed post (210).

2. The calibration auxiliary device for a tensile and compressive testing machine according to claim 1, characterized in that, The sliding frame (140) is C-shaped, and a slider (141) is provided on the outside of the sliding frame (140). The slider (141) is slidably sleeved on the connecting rod (130).

3. The calibration auxiliary device for a tensile and compressive testing machine according to claim 1, characterized in that, The positioning knob (170) is threaded through the sliding frame (140), and the rotating plate (150) has a positioning groove (151). The positioning knob (170) and the positioning groove (151) are compatible.

4. The calibration auxiliary device for a tensile and compressive testing machine according to claim 1, characterized in that, The rotating plate (150) is provided with an extension edge (152), which abuts against the sliding frame (140).

5. The calibration auxiliary device for a tensile and compressive testing machine according to claim 1, characterized in that, There are two symmetrically arranged sliding rods (180), and the two sliding rods (180) are fixedly connected to a connecting plate (181).

6. The calibration auxiliary device for a tensile and compressive testing machine according to claim 5, characterized in that, The connecting plate (181) is fixedly connected to the top column (182), and the semi-circular plate (220) abuts against the top column (182).

7. The calibration auxiliary device for a tensile and compressive testing machine according to claim 1, characterized in that, The two semicircular plates (220) are provided with anti-slip texture (221) on the side away from each other.

8. The calibration auxiliary device for a tensile and compressive testing machine according to claim 1, characterized in that, The force measuring ring (160) is bolted to one side of the rotating plate (150).

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