Manual dotting device suitable for dotting spacing of metal material

Abstract

The utility model provides a manual dotting device suitable for dotting spacing of a metal material, and belongs to the technical field of metal material mechanical property detection. Comprising a mounting rod, a first positioning component is arranged at one end of the mounting rod, a second positioning component is arranged on the mounting rod in a horizontal sliding mode, and a limiting piece used for limiting movement of the second positioning component on the mounting rod is arranged on the second positioning component. A vernier caliper and other tools are adopted to measure the distance between the tips of the two metal punches, a sliding head is adjusted to a standard required position, then a locking bolt is adopted to fix the sliding head, a sample is placed in a guide groove below a guide plate, the sample is guided and aligned through the two guide grooves, and the two metal punches are knocked. The standard length marking device has the effect of flexibly adapting to standard lengths with different requirements for marking.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical property testing of metal materials, in particular to a manual dotting device suitable for the dotting distance of metal materials. Background Art

[0002] In order to test the plastic properties of metal materials, the elongation after fracture is generally used as the plastic index of the material. In tensile or high-temperature creep tests, in order to obtain the elongation after fracture of the material, the original gauge length is generally marked by scribing or dotting, and most high-temperature tests mark the original gauge length by dotting. Due to the limitation of the size of the raw material or product, the sizes of the processed test specimens are inconsistent, so the original gauge lengths calculated according to the standard requirements also have differences.

[0003] However, the existing manual dotting devices for the gauge length of metal materials can generally only dot a certain fixed gauge length, such as the most common 25mm, 50mm, etc. Therefore, it is necessary to prepare multiple dotting devices with different gauge lengths, which is inconvenient to use. For some manual or electric dotting devices for the gauge length, they are generally adjusted in integer multiples of 5 and cannot achieve continuous adjustment. Generally, the gauge length of the test specimen is not an integer multiple of 5, and the gauge length of some standard test specimens is not even an integer. A tool that can meet continuous dotting of different gauge lengths is needed. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a manual dotting device suitable for dotting the spacing of metal materials.

[0005] In order to achieve the above invention purpose, the technical solution adopted by the utility model is as follows:

[0006] Provide a manual dotting device suitable for the dotting distance of metal materials, including a mounting rod, one end of the mounting rod is provided with a first positioning member, a second positioning member is horizontally slidably arranged on the mounting rod, and a limiting member for restricting the movement of the second positioning member on the mounting rod is arranged on the second positioning member.

[0007] Further, the first positioning member includes a guide head fixedly connected to one end of the mounting rod, a first guide hole is vertically opened on the guide head, and a first metal punch is movably inserted into the first guide hole;

[0008] The second positioning member includes a sliding head, a sliding groove is opened on the sliding head, the mounting rod is slidably inserted into the sliding groove, a second guide hole is vertically opened on the sliding head on one side of the sliding groove, and a second metal punch is movably inserted into the second guide hole.

[0009] Further, anti-detachment heads are fixedly arranged at the tops of the first metal punch and the second metal punch.

[0010] Further, the bottom ends of the first metal punch and the second metal punch are both provided with conical tips.

[0011] Further, guiding components are both arranged at the bottoms of the guiding head and the sliding head, and the guiding component includes:

[0012] A guiding plate, fixedly arranged on the guiding head / sliding head, a guiding groove is formed in the guiding plate, and the center line of the guiding groove is located in the plane where the axes of the first guiding hole and the second guiding hole are co-located.

[0013] Further, guiding components are both arranged at the bottoms of the guiding head and the sliding head, and the guiding component includes:

[0014] A fixing piece, fixedly connected to the guiding head / sliding head;

[0015] A movable piece, located on one side of the fixing piece and slidably connected to the guiding head / sliding head in parallel with respect to the fixing piece;

[0016] A driving member, used to drive the movable piece to slide and approach the fixing piece.

[0017] Further, the driving member is an adjusting bolt, the adjusting bolt is threadedly connected to the movable piece, and one end of the adjusting bolt is rotatably connected to the fixing piece.

[0018] Further, the limiting member includes a limiting bolt, a limiting screw hole is formed in the sliding head, the limiting screw hole communicates with the sliding groove, and the limiting bolt abuts against the mounting rod after passing through the limiting screw hole.

[0019] Further, scale lines are arranged along the length direction of the mounting rod on the mounting rod.

[0020] The beneficial effects of the present utility model are as follows: When marking a specimen, first adjust the position of the sliding head, use tools such as a vernier caliper to measure the tip spacing of the two metal punches, adjust the sliding head to the standard required position, then use a locking bolt to fix the sliding head, place the specimen in the guiding groove below the guiding plate, align the specimen through the two guiding grooves, and strike the two metal punches, then marking points can be struck on the surface of the specimen, which can flexibly apply standard lengths with different requirements for marking, and the operation is convenient. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present application.

[0022] Figure 2 It is a schematic diagram of the overall structure of Embodiment 2 of the present application.

[0023] Among them, 1. mounting rod; 11. scale line; 2. guide head; 21. first guide hole; 22. first metal punch; 3. sliding head; 31. slide groove; 32. second guide hole; 33. second metal punch; 41. anti-slip head; 42. tip; 501. guide plate; 502. guide groove; 51. fixed plate; 52. movable plate; 53. adjusting bolt; 6. limit bolt. DETAILED DESCRIPTION

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Example 1

[0026] The present application embodiment discloses a manual dotting device suitable for dotting metal material spacing. Figure 1 , including a mounting rod 1, a section of the mounting rod 1 is provided with a first positioning member, a second positioning member is slidably connected to the mounting rod 1 along the length of the mounting rod 1, and a limiter is provided on the second positioning member for limiting the sliding of the second positioning member on the mounting rod 1.

[0027] Specifically, the first positioning member includes a guide head 2 fixed to one end of the mounting rod 1, a first guide hole 21 is vertically opened on the guide head 2, and a first metal punch 22 is coaxially movably penetrated in the first guide hole 21. The second positioning member includes a sliding head 3 slidably installed on the mounting rod 1 along the length direction of the mounting rod 1, a sliding groove 31 adapted to the shape of the mounting rod 1 is opened on the sliding head 3, and the mounting rod 1 is penetrated in the sliding groove 31. A second guide hole 32 is penetrated through the sliding head 3, and a second metal punch 33 is coaxially slidably penetrated in the second guide hole 32. The planes of the axis of the first guide hole 21 and the axis of the second guide hole 32 are parallel to the length direction of the mounting rod 1. The bottom ends of the first metal punch 22 and the second metal punch 33 are both provided with a conical tip 42. The limiting member includes a limiting bolt 6. A screw hole connected to the slide groove 31 is provided on the sliding head 3. The limiting bolt 6 is threadedly connected to the screw hole. The limiting bolt 6 abuts against the outer wall of the mounting rod 1, thereby limiting the movement of the sliding head 3 on the mounting rod 1.

[0028] When the manual dotting device in the embodiment of the present application is in use, first place the first metal punch 22 and the second metal punch 33 into the first guiding hole 21 and the second guiding hole 32 respectively. Install the sliding head 3 on the mounting rod 1. By sliding left and right, the distance between the bottom points of the first metal punch 22 and the second metal punch 33 can be adjusted. Then, use measuring tools such as vernier calipers to detect the distance between the bottom tips 42 of the metal punches. After determining the dotting distance, rotate the limit bolt 6 to fix the sliding head 3 on the mounting rod 1. Place the device on the parallel working section of the specimen, and strike the first metal punch 22 and the second metal punch 33 to punch punctuation marks on the specimen using the tips 42 of the metal punches. When using it again, it is necessary to measure the distance between the tips 42 of the two metal punches again to confirm whether it meets the standard requirements. If it meets the requirements, continue to dot on the specimen. If it does not meet the requirements, loosen the limit bolt 6 and finely adjust the position of the sliding head 3 until it meets the requirements.

[0029] Furthermore, anti - detachment heads 41 are fixedly arranged at the tops of the first metal punch 22 and the second metal punch 33, enabling the operator to conveniently strike the metal punches. Further, guiding assemblies are arranged at the bottoms of the guiding head 2 and the sliding head 3. In the embodiment of the present application, the guiding assembly includes a guiding plate 501 fixed on the guiding head 2 / sliding head 3. A guiding groove 502 is formed at the bottom of the guiding plate 501. The cross - section of the guiding groove 502 can be triangular or isosceles trapezoidal. The center lines of the guiding grooves 502 of the guiding plates 501 on the guiding head 2 and the sliding head 3 are coplanar with the axis of the first guiding hole 21 and the axis of the second guiding hole 32. When performing marking operations on the surface of a columnar specimen, place the specimen in the guiding grooves 502 on the two guiding plates 501, and use the symmetric two side slopes in the guiding grooves 502 to automatically align the workpiece, improving the alignment efficiency.

[0030] Embodiment 2

[0031] Refer to Figure 2 In Embodiment 2, the difference from Embodiment 1 is that the guiding assemblies are different.

[0032] Guiding assemblies are arranged at the bottoms of the guiding head 2 / sliding head 3. In the embodiment of the present application, the guiding assembly includes a fixing piece 51, a movable piece 52 and a driving member. The fixing piece 51 is fixed at the edge of the same side of the bottoms of the guiding head 2 and the sliding head 3. The movable piece 52 is arranged in parallel on one side of the fixing piece 51. A receiving gap parallel to the mounting rod 1 and for receiving the specimen is formed between the movable piece 52 and the fixing piece 51. Extension frames extend on both the guiding head 2 and the sliding head 3, and the movable piece 52 is slidably connected to the extension frames.

[0033] In the embodiment of the present application, the driving member may be an adjusting bolt 53. A threaded hole adapted to the adjusting bolt 53 is formed in the movable piece 52. The adjusting bolt 53 is threadedly connected to the threaded hole. One end of the adjusting bolt 53 passes through the movable piece 52 and is rotatably connected to the guiding head 2 and the sliding head 3. In another embodiment, after passing through the movable piece 52, the adjusting bolt 53 is rotatably connected to the fixed piece 51.

[0034] By rotating the adjusting bolt 53, the width of the accommodating gap can be adjusted. When performing marking operations on plate-shaped or strip-shaped specimens, place the specimen in the accommodating gap and rotate the adjusting bolt 53 to make the movable piece 52 push the specimen against the fixed piece 51, so that when the specimen is continuously marked, the alignment is accurate and the marks are in a straight line.

[0035] Furthermore, scale lines 11 may be provided on the mounting rod 1 along its length direction. When adjusting the sliding head 3, by observing the position of the sliding head 3 on the scale lines 11, adjustment can be made intuitively and conveniently, improving the adjustment convenience.

[0036] Those skilled in the art should understand that although the preferred embodiments of the present invention have been described, once the basic creative concepts are known to those skilled in the art, additional changes and modifications can be made to these embodiments. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Obviously, those skilled in the art can make various changes and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A manual dotting device suitable for dotting spacing of metal materials, characterized in that: It comprises a mounting rod (1), one end of which is provided with a first positioning member, a second positioning member is horizontally slidably provided on the mounting rod (1), and the second positioning member is provided with a limiting member for limiting its own movement on the mounting rod (1).

2. A manual dotting device suitable for dotting spacing of metal materials according to claim 1, characterized in that: The first positioning member comprises a guide head (2) fixedly connected to one end of the mounting rod (1), a first guide hole (21) being vertically opened on the guide head (2), and a first metal punch (22) being movably inserted into the first guide hole (21); The second positioning member comprises a sliding head (3), a sliding groove (31) is provided on the sliding head (3), the mounting rod (1) is slidably inserted into the sliding groove (31), a second guide hole (32) is vertically provided on the sliding head (3) at one side of the sliding groove (31), and a second metal punch (33) is movably inserted into the second guide hole (32).

3. A manual dotting device suitable for dotting spacing of metal materials according to claim 2, characterized in that: Anti-slip heads (41) are fixedly provided at the top ends of the first metal punch (22) and the second metal punch (33).

4. A manual dotting device suitable for dotting spacing of metal materials according to claim 2, characterized in that: The bottom ends of the first metal punch (22) and the second metal punch (33) are both provided with a conical tip (42).

5. A manual dotting device suitable for dotting spacing of metal materials according to any one of claims 2 to 4, characterized in that: The bottoms of the guide head (2) and the sliding head (3) are both provided with guide components, and the guide components include: The guide plate (501) is fixedly arranged on the guide head (2) / sliding head (3), and a guide groove (502) is provided on the guide plate (501). The center line of the guide groove (502) is located in a plane where the axis of the first guide hole (21) and the axis of the second guide hole (32) coexist.

6. A manual dotting device suitable for dotting spacing of metal materials according to any one of claims 2 to 4, characterized in that: The bottoms of the guide head (2) and the sliding head (3) are both provided with guide components, and the guide components include: A fixed sheet (51) fixedly connected to the guide head (2) / sliding head (3); The movable sheet (52) is located on one side of the fixed sheet (51) and is connected to the guide head (2) / sliding head (3) in parallel and sliding manner relative to the fixed sheet (51); The driving member is used to drive the movable sheet (52) to slide and approach the fixed sheet (51).

7. A manual dotting device suitable for dotting spacing of metal materials according to claim 6, characterized in that: The driving member is an adjusting bolt (53), which is threadedly connected to the movable plate (52) and one end of the adjusting bolt (53) is rotatably connected to the fixed plate (51).

8. A manual dotting device suitable for dotting spacing of metal materials according to claim 2, characterized in that: The limiting member comprises a limiting bolt (6), a limiting screw hole is provided on the sliding head (3), the limiting screw hole is connected to the sliding groove (31), and the limiting bolt (6) abuts against the mounting rod (1) after passing through the limiting screw hole.

9. A manual dotting device suitable for dotting spacing of metal materials according to claim 1, characterized in that: The installation rod (1) is provided with scale lines (11) along the length direction of the installation rod (1).

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