An effective area scribing device for metal material tensile test

Abstract

This utility model relates to an effective area scribing device for tensile testing of metallic materials, including a fixed base, a limiting mechanism, and a scribing mechanism. The limiting mechanism includes a limiting strip and a baffle. The limiting strip is fixed to the fixed base by screws. A V-shaped groove is provided along the length of the limiting strip, penetrating both ends of the limiting strip. The baffle is fixed at either end of the V-shaped groove. The scribing mechanism includes a support base, a first driving device, a movable base, a second driving device, and a scribing component. The first driving device is used to drive the support base to slide. The top of the support base has a sliding groove penetrating its front and rear sides, the sliding groove being horizontally set and perpendicular to the limiting strip. The movable base is slidably disposed within the sliding groove. The scribing component includes a screw and a scribing steel head. The screw is vertical and threaded at the front end of the movable base, with the lower end of the screw penetrating the movable base. The scribing steel head is disposed at the end of the screw. This utility model can effectively limit the specimen to be scribed and quickly scribble lines on it.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, and in particular to a device for marking the effective area of ​​a tensile test for metal materials. Background Technology

[0002] The purpose of tensile testing on metallic materials is to evaluate their mechanical properties under tension, including core indicators such as yield strength, tensile strength, and ductility (e.g., elongation at break), providing a basis for material design, selection, and quality control. The test must be conducted strictly in accordance with national standards, including sample preparation, equipment parameter settings, and data recording, to ensure the accuracy of the results.

[0003] like Figure 1 As shown, this is a tensile test specimen prepared according to national standards. Before the tensile test, lines need to be drawn within its effective area to determine whether the fracture surface is within the effective area during the subsequent tensile test. Currently, during the process of drawing lines on the specimen, the ink drawn on the surface is easily erased, making it impossible to determine whether the fracture surface is within the effective area. In addition, if a rigid material is used for scribing, it is difficult to effectively position the lines.

[0004] Therefore, it is desirable to provide an effective area scribing device for tensile testing of metallic materials, which can solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an effective area scribing device for tensile testing of metallic materials, which can effectively limit the specimen to be scribed and quickly scribble lines on it.

[0006] To achieve the above-mentioned utility model objectives, this utility model provides an effective area scribing device for tensile testing of metallic materials, including a fixed base, a limiting mechanism, and a scribing mechanism;

[0007] The limiting mechanism includes a limiting strip and a baffle;

[0008] The limiting strip is fixed to the fixing base by screws;

[0009] The limiting strip has a V-shaped groove along its length, and the V-shaped groove passes through both ends of the limiting strip;

[0010] The baffle is fixed at either end of the V-shaped groove;

[0011] The marking mechanism includes a support base, a first driving device, a movable base, a second driving device, and a marking component;

[0012] The support base is located on one side of the fixed base and is slidably disposed along the length of the limiting strip;

[0013] The first driving device is used to drive the support base to slide;

[0014] The top of the support base is provided with a sliding groove that runs through its front and rear sides. The sliding groove is horizontally set and perpendicular to the limiting strip.

[0015] The movable seat is slidably disposed within the slide groove, and its front end extends out of the front end of the slide groove;

[0016] The second driving device is used to drive the movable seat to move on the slide rail;

[0017] The scribing component includes a screw and a scribing steel head;

[0018] The screw is vertical and threaded at the front end of the movable seat, and the lower end of the screw passes through the movable seat;

[0019] The marking steel head is located at the end of the screw.

[0020] Specifically, the first driving device includes a lead screw and a guide rod;

[0021] The lead screw is horizontally rotatable along the length of the limiting strip and is mounted on one side of the fixed base. The guide rod is fixed on the fixed base and is located on the same side of the fixed base as the lead screw. The guide rod is parallel to the lead screw.

[0022] A handle is provided at either end of the lead screw;

[0023] The support base is respectively sleeved on the lead screw and the guide rod, and the support base is threadedly connected to the lead screw.

[0024] Specifically, the drive device includes a first connecting shaft, a second connecting shaft, a connecting block, and a handle;

[0025] The rear end of the movable seat is provided with a long groove along its length, and the first connecting shaft is horizontally arranged in the long groove;

[0026] The top of the support base has a connecting seat, and the second connecting shaft is disposed on the connecting seat;

[0027] The upper part of the connecting block is sleeved on the second connecting shaft to achieve rotational setting;

[0028] The lower part of the connecting block is provided with an arc-shaped through hole, through which the first connecting shaft passes;

[0029] The handle is fixed to the upper part of the connecting block.

[0030] Preferably, a gantry frame is provided at one end of the fixed base near the baffle. The gantry frame spans the limiting strip and is provided with a limiting vertical rod. The limiting vertical rod is vertical and threaded on the gantry frame and passes through the top of the gantry frame.

[0031] The present invention, a marking device for effective area of ​​tensile testing of metallic materials, has the following advantages compared with the prior art:

[0032] By setting a limiting strip with a V-groove on the fixed seat, it can adapt to specimens with different cross-sectional diameters within a certain range, effectively limit their movement, and not affect their rotation; by moving the support seat, the scribing component can be adjusted to adapt to specimens of different lengths for scribing. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the sample in the background art;

[0034] Figure 2 This is a schematic diagram of the structure of the fixing base in this embodiment;

[0035] Figure 3 This is a schematic diagram of the effective area scribing device for tensile testing of metallic materials according to this embodiment;

[0036] Figure 4 This is a schematic diagram of the connecting block in this embodiment. Detailed Implementation

[0037] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0038] Example

[0039] This embodiment provides a marking device for effective areas of tensile testing of metallic materials, including a fixed base 1, a limiting mechanism, and a marking mechanism.

[0040] The limiting mechanism includes a limiting strip 2 and a baffle 3; the limiting strip 2 is fixed to the fixed base 1 by screws; a V-shaped groove 4 is provided on the limiting strip 2 along its length direction, and the V-shaped groove 4 passes through both ends of the limiting strip 2; the baffle 3 is fixed to either end of the V-shaped groove 4.

[0041] The marking mechanism includes a support base 5, a first driving device, a movable base 6, a second driving device, and a marking component; the support base 5 is located on one side of the fixed base 1 and is slidably arranged along the length direction of the limiting strip 2; the first driving device is used to drive the support base 5 to slide.

[0042] In this embodiment, as Figure 2As shown, the first driving device includes a lead screw 7 and a guide rod 8. The lead screw 7 is horizontally rotatable along the length of the limiting strip 2 on one side of the fixed base 1. The guide rod 8 is fixed on the fixed base 1 and located on the same side of the fixed base 1 as the lead screw 7, and the guide rod 8 is parallel to the lead screw 7. A handle 9 is provided on either end of the lead screw 7. The support base 5 is respectively sleeved on the lead screw 7 and the guide rod 8, and the support base 5 is threadedly connected to the lead screw 7. With this configuration, by rotating the handle 9, the lead screw 7 is rotated, thereby realizing the linear movement of the support base 5 on the lead screw 7, while the guide rod 8 plays a guiding role to prevent the support base 5 from shaking.

[0043] The top of the support base 5 is provided with a sliding groove 10 that runs through its front and rear sides. The sliding groove 10 is horizontally arranged and perpendicular to the limiting strip 2. The movable seat 6 is slidably arranged in the sliding groove 10, and its front end extends out of the front end of the sliding groove 10. The second driving device is used to drive the movable seat 6 to move on the sliding groove 10.

[0044] In this embodiment, as Figure 3 As shown, the driving device includes a first connecting shaft 11, a second connecting shaft 12, a connecting block 13, and a handle 14; the rear end of the movable seat 6 has an elongated groove 15 along its length, and the first connecting shaft 11 is horizontally arranged in the elongated groove 15; the top of the support seat 5 has a connecting seat 16, and the second connecting shaft 12 is disposed on the connecting seat 16; the upper part of the connecting block 13 is sleeved on the second connecting shaft 12 to achieve rotational setting; as shown Figure 4 As shown, the lower part of the connecting block 13 is provided with an arc-shaped through hole 17, through which the first connecting shaft 11 passes; the handle 14 is fixed to the upper part of the connecting block 13; with this configuration, by pulling the handle 14, the connecting block 13 rotates around the second connecting shaft 12, and under the compensating effect of the arc-shaped through hole 17, the moving seat 6 is finally driven to move back and forth on the slide groove 10.

[0045] The marking component includes a screw 18 and a marking steel head 19; the screw 18 is vertical and threaded at the front end of the movable seat 6, and the lower end of the screw 18 passes through the movable seat 6; the marking steel head 19 is located at the end of the screw.

[0046] When scribing the sample, first place the sample in the V-groove 4 of the limiting strip 2, with one end abutting against the baffle 3. Then, turn the handle 9 to move the support seat 5 on the screw 7. When it moves to the designated position, pull the handle 14 to move the moving seat 6 forward until the scribing part is directly above the area to be scribed on the sample. Then, turn the screw 18 to make the scribing steel head 19 contact the sample. Rotate the sample to scribing it. After scribing one end of the sample, there is no need to adjust the position of the support seat 5. Remove the sample, turn it around and place it on the V-groove 4, and repeat the above operation.

[0047] In this embodiment, as Figure 3 As shown, a gantry frame 20 is provided at one end of the fixed base 1 near the baffle 3. The gantry frame 20 spans the limiting strip 2 and is provided with a limiting vertical rod 21. The limiting vertical rod 21 is vertical and threaded on the gantry frame 20 and passes through the top of the gantry frame 20. When scribing the sample, the limiting vertical rod 21 is rotated so that its end is at a suitable height to effectively limit the height of the sample.

[0048] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A scribing device for the effective area of ​​a tensile test on metallic materials, characterized in that, Includes a fixed base, a limiting mechanism, and a marking mechanism; The limiting mechanism includes a limiting strip and a baffle; The limiting strip is fixed to the fixing base by screws; The limiting strip has a V-shaped groove along its length, and the V-shaped groove passes through both ends of the limiting strip; The baffle is fixed at either end of the V-shaped groove; The marking mechanism includes a support base, a first driving device, a movable base, a second driving device, and a marking component; The support base is located on one side of the fixed base and is slidably disposed along the length of the limiting strip; The first driving device is used to drive the support base to slide; The top of the support base is provided with a sliding groove that runs through its front and rear sides. The sliding groove is horizontally set and perpendicular to the limiting strip. The movable seat is slidably disposed within the slide groove, and its front end extends out of the front end of the slide groove; The second driving device is used to drive the movable seat to move on the slide rail; The scribing component includes a screw and a scribing steel head; The screw is vertical and threaded at the front end of the movable seat, and the lower end of the screw passes through the movable seat; The marking steel head is located at the end of the screw.

2. The effective area marking device for tensile testing of metallic materials as described in claim 1, characterized in that, The first drive device includes a lead screw and a guide rod; The lead screw is horizontally rotatable along the length of the limiting strip and is mounted on one side of the fixed base. The guide rod is fixed on the fixed base and is located on the same side of the fixed base as the lead screw. The guide rod is parallel to the lead screw. A handle is provided at either end of the lead screw; The support base is respectively sleeved on the lead screw and the guide rod, and the support base is threadedly connected to the lead screw.

3. The effective area marking device for tensile testing of metallic materials as described in claim 1 or 2, characterized in that, The drive device includes a first connecting shaft, a second connecting shaft, a connecting block, and a handle; The rear end of the movable seat is provided with a long groove along its length, and the first connecting shaft is horizontally arranged in the long groove; The top of the support base has a connecting seat, and the second connecting shaft is disposed on the connecting seat; The upper part of the connecting block is sleeved on the second connecting shaft to achieve rotational setting; The lower part of the connecting block is provided with an arc-shaped through hole, through which the first connecting shaft passes; The handle is fixed to the upper part of the connecting block.

4. The effective area marking device for tensile testing of metallic materials as described in claim 1, characterized in that, A gantry frame is provided at one end of the fixed base near the baffle. The gantry frame spans the limiting strip and is provided with a limiting vertical rod. The limiting vertical rod is vertical and threaded on the gantry frame and passes through the top of the gantry frame.

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