Cup drawing testing machine clamping force verification auxiliary device

Abstract

The utility model provides a cup drawing testing machine clamping force verification auxiliary device which comprises a supporting plate, a through hole is formed in the middle of the supporting plate, a detection rod is arranged in the through hole, the detection rod can move in the through hole, a top plate is fixed to the top end of the detection rod, a clamping groove of an arc-shaped structure is formed in the bottom end of the detection rod, and the top plate is fixed to the bottom end of the detection rod. A through hole is formed in the supporting plate, a plurality of screw holes are formed in the edge of the through hole, screw rods are installed in the screw holes, a pressing plate is arranged above the supporting plate, installation holes corresponding to the screw rods are formed in the pressing plate, the screw rods penetrate through the installation holes, and nuts are arranged on the screw rods. According to the utility model, the dynamometer is placed between the top plate and the pressing plate, so that the dynamometer can be placed stably, and the detection accuracy is improved; the movable detection rod is arranged on the guide plate, external force applied by a cup drawing ball in the cup drawing testing machine is transmitted to the dynamometer through the detection rod and the top plate, the dynamometer is stressed uniformly, and a detection value is more accurate; the structure is simple and the use mode is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of cupping test machine equipment and relates to a clamping force verification auxiliary device for a cupping test machine. Background Art

[0002] The cupping tester is a force measuring device used to test the ability of metal sheets and strips to withstand plastic deformation during drawing. The clamping force calibration auxiliary device of the cupping tester is an auxiliary device used when the clamping force of the cupping tester is calibrated using a standard dynamometer as a standard device. The clamping force of the cupping tester can be measured by a standard dynamometer to determine whether calibration is required. At present, the standard dynamometer cannot be directly installed at the corresponding position of the cupping tester and needs to be calibrated with the help of a fixture. The existing fixture has poor performance and the dynamometer is unstable after being subjected to force, which affects the detection effect. Utility Model Content

[0003] The utility model aims to provide a clamping force verification auxiliary device for a cupping test machine in view of the problems existing in the prior art.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A clamping force verification auxiliary device for a cupping tester comprises a support plate, a through hole is provided in the middle of the support plate, a detection rod is provided in the through hole, the detection rod can move in the through hole, a top plate is fixed to the top end of the detection rod, a slot with an arc-shaped structure is provided at the bottom end of the detection rod, a plurality of screw holes are provided at the edge of the through hole, screw rods are installed in the plurality of screw holes, a pressure plate is provided above the support plate, a mounting hole corresponding to the screw rod is provided on the pressure plate, the screw rod passes through the mounting hole, and a nut is provided on the screw rod.

[0006] Furthermore, the screw rod and the support plate are arranged perpendicular to each other.

[0007] Furthermore, the pressing plate and the supporting plate are arranged parallel to each other.

[0008] Furthermore, the top plate and the detection rod are arranged perpendicular to each other.

[0009] Furthermore, a guide bar is provided on one side of the detection rod along the length direction of the detection rod, a guide groove corresponding to the guide bar is provided on the through hole, and the guide bar is located in the guide groove.

[0010] The beneficial effects of the present utility model are as follows: Placing the force measuring instrument between the top plate and the pressing plate can make the force measuring instrument placed stably, improving the detection accuracy; A movable detection rod is provided on the guiding plate, and the external force applied by the cup drawing ball in the cup drawing testing machine is transmitted to the force measuring instrument through the detection rod and the top plate, so that the force measuring instrument is evenly stressed and the detected value is more accurate; The structure is simple, the usage method is convenient, and the manufacturing cost is low. Description of the Drawings

[0011] Figure 1 is a schematic structural view of the present utility model;

[0012] In the figure, 1 - support plate, 2 - through hole, 3 - detection rod, 4 - top plate, 5 - clamping groove, 6 - screw hole, 7 - screw rod, 8 - pressing plate, 9 - mounting hole, 10 - nut, 11 - guiding strip, 12 - guiding groove. Specific Embodiment

[0013] The following will describe the present utility model in detail with reference to the drawings:

[0014] As Figure 1 shown, an auxiliary device for calibrating the clamping force of a cup drawing testing machine includes a support plate 1. A through hole 2 is provided in the middle of the support plate 1. A detection rod 3 is provided in the through hole 2. The detection rod 3 is perpendicular to the support plate 1. The detection rod 3 can move up and down in the through hole 2. The top end of the detection rod 3 is fixed with a top plate 4 that is perpendicular to the detection rod 3. An arc-shaped clamping groove 5 is provided at the bottom end of the detection rod 3. The cup drawing ball of the cup drawing testing machine can be placed into the clamping groove 5 to apply an upward external force to the detection rod 3. Through the clamping groove 5, it can be ensured that the cup drawing ball stably applies an external force to the detection rod. In order to make the movement of the detection rod 3 more stable, a guiding strip 11 is provided on one side of the detection rod 3 along the length direction of the detection rod 3. A guiding groove 12 corresponding to the guiding strip 11 is provided on the through hole 2. The guiding strip 11 is located in the guiding groove 13. A plurality of screw holes 6 are provided at the edge of the through hole 2. In this embodiment, two screw holes 6 are provided. A screw rod 7 perpendicular to the support plate 1 is installed in the screw hole 6. A pressing plate 8 parallel to the support plate 1 is provided above the support plate 1. Mounting holes 9 corresponding to the screw rods 7 are provided on the pressing plate 8. The screw rods 7 pass through the mounting holes 9. Nuts 10 are provided on the screw rods 7. When in use, the force measuring instrument can be placed between the top plate 4 and the pressing plate 8. An external force is applied to the force measuring instrument through the top plate 4 to perform the clamping force calibration.

[0015] The usage method of the present utility model is as follows:

[0016] When in use, first place the support plate 1 at the corresponding position of the cupping test machine, then insert the detection rod 3 into the through hole 2 from top to bottom, so that the cupping ball of the cupping test machine is located in the card slot 5 at the bottom end of the measuring rod 3. When inserting, make the guiding strip 11 located in the guiding groove 12, then the dynamometer can be placed on the top plate 4 at the top end of the detection rod 3. Then the screw rod 7 can be installed in the screw hole 6, and finally the pressure plate 8 is installed, so that the screw rod 7 passes through the installation hole 9 on the pressure plate 8 and the nut 10 is installed on the screw rod 78. At this time, make the pressure plate 8 abut against the top of the dynamometer, and then the clamping force test can be carried out. Start the cupping test machine, so that the cupping ball moves upward to apply an upward external force to the detection rod 3, and the external force is transmitted to the dynamometer through the top plate 4, and the verification can be carried out through the value displayed by the dynamometer.

[0017] With this device, the dynamometer can be stably installed at the corresponding position of the cupping test machine for fixation, and the clamping force can be more accurately verified whether it is accurate.

Claims

1. A cupping test machine clamping force verification auxiliary device, characterized in that: The invention comprises a support plate (1), wherein a through hole (2) is provided in the middle of the support plate (1), a detection rod (3) is provided in the through hole (2), the detection rod (3) is movable in the through hole (2), a top plate (4) is fixed at the top end of the detection rod (3), a slot (5) in an arc structure is provided at the bottom end of the detection rod (3), a plurality of screw holes (6) are provided at the edge of the through hole (2), a screw rod (7) is installed in the screw hole (6), a pressing plate (8) is provided above the support plate (1), a mounting hole (9) corresponding to the screw rod (7) is provided on the pressing plate (8), the screw rod (7) passes through the mounting hole (9), and a nut (10) is provided on the screw rod (7).

2. The cupping test machine clamping force verification auxiliary device according to claim 1, characterized in that: The screw rod (7) and the support plate (1) are arranged perpendicular to each other.

3. The cupping test machine clamping force verification auxiliary device according to claim 1, characterized in that: The pressing plate (8) and the supporting plate (1) are arranged parallel to each other.

4. The cupping test machine clamping force verification auxiliary device according to claim 1, characterized in that: The top plate (4) and the detection rod (3) are arranged perpendicular to each other.

5. The cupping test machine clamping force verification auxiliary device according to claim 1, characterized in that: A guide strip (11) is provided on one side of the detection rod (3) along the length direction of the detection rod (3), a guide groove (12) corresponding to the guide strip (11) is provided on the through hole (2), and the guide strip (11) is located in the guide groove (12).

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