Plate-shaped small sample positioning tool

Abstract

The utility model discloses a plate-shaped small sample positioning tool, which belongs to the field of positioning tools, and comprises a base, a supporting assembly and a positioning assembly, the supporting assembly comprises a supporting plate, a lead screw, a handle and a sliding lever, the supporting plate is fixedly arranged on the base in an inverted U shape, the lead screw is arranged below the supporting plate, and the handle is arranged below the sliding lever. The two ends of the lead screw are rotationally connected with the supporting plate through bearings. The positioning assembly comprises a supporting base, a stud, a rotary knob and a clamping block. Through cooperation of the supporting assembly and the positioning assembly, during positioning, a handle can be rotated, a lead screw is driven to rotate through the handle, and under the guiding effect of a sliding lever, the lead screw drives two supporting seats to move oppositely or reversely along the lead screw; the two positioning assemblies can be respectively adjusted to the two ends of the small plate-shaped sample according to the length of the small plate-shaped sample, so that the small plate-shaped samples with different lengths can be fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning tooling, and particularly relates to a positioning tooling for a plate-shaped small specimen. Background Technique

[0002] Plate-shaped small specimens are often used for specific tests of materials. Among them, plate-shaped tensile specimens are used for compressive tests, which are tests to determine a series of characteristics of materials under tensile loads. The data obtained from tensile tests can be used to determine the elastic limit, elongation, elastic modulus, proportional limit, reduction of area, tensile strength, yield point, yield strength, and other tensile performance indicators of materials. It is one of the basic methods for testing the mechanical properties of materials and is mainly used to check whether materials meet the specified standards and study the properties of materials.

[0003] The existing Chinese patent with the publication number CN205749096U discloses a device for processing plate-shaped tensile specimens, including columns, an upper plate, a lower plate, a base, a nut, and a lead screw. Columns are fixedly connected to both ends of the base, the upper plate is fixed to the top of the columns at both ends, a lead screw is fixed in the center of the base, the lead screw is connected to the nut through a thread pair, the bottom of the lower plate is supported by the nut, and a plate-shaped tensile specimen is placed between the upper plate and the lower plate.

[0004] Regarding the above related technology, the inventor found that at least the following problems exist in this technology: The structure of the above device is fixed and cannot be adjusted, and it can only be applicable to the positioning of plate-shaped specimens of one size. However, plate-shaped specimens usually have a variety of different sizes. When positioning plate-shaped specimens of different sizes, the corresponding device needs to be replaced, and the applicability is poor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a positioning tooling for a plate-shaped small specimen to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A positioning tooling for a plate-shaped small specimen, including a base, a support assembly, and a positioning assembly. The support assembly includes a support plate, a lead screw, a handle, and a slide bar. The support plate is fixedly installed on the base in an inverted U shape. The lead screw is arranged below the support plate, and both ends of the lead screw are rotatably connected to the support plate through bearings;

[0007] The positioning assembly includes a support seat, a stud, a knob, and a clamping block. The support seat is slidably installed below the support plate in a U shape. The lead screw is a bidirectional lead screw. The two support seats are respectively sleeved on both ends of the lead screw and are threadedly connected to the lead screw. Studs are threadedly connected to both sides of the support seat. The clamping block is arranged above the support seat, and the clamping block is rotatably installed at one end of the stud.

[0008] As a preferred embodiment, the handle is provided on one side of the support plate, and the handle is fixedly connected to one end of the lead screw.

[0009] As a preferred embodiment, there are two slide bars, and the two slide bars are respectively arranged on both sides of the lead screw. Both ends of the slide bar are fixedly connected to the support plate, and the support seat is sleeved on the slide bar and is slidably connected to the slide bar.

[0010] As a preferred embodiment, a dovetail bar is provided on the lower surface of the support plate, and a dovetail groove slidably matched with the dovetail bar is formed on the top surface of the support seat.

[0011] As a preferred embodiment, the knob is fixedly installed at one end of the stud away from the clamping block.

[0012] As a preferred embodiment, mounting holes are formed at the four corners of the base, and the mounting holes are U-shaped holes.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For this plate-shaped small specimen positioning tooling, through the cooperation of the support component and the positioning component, during positioning, the handle can be rotated, and the lead screw is driven to rotate by the handle. Under the guiding action of the slide bar, the lead screw drives the two support seats to move relative to or in the opposite direction along the lead screw. After placing the plate-shaped small specimen on the support plate, the two positioning components can be respectively adjusted to both ends of the plate-shaped small specimen according to the length of the plate-shaped small specimen, so as to fix plate-shaped small specimens of different lengths.

[0015] For this plate-shaped small specimen positioning tooling, through the setting of the positioning component, the plate-shaped small specimen is placed on the support plate, and then the knob can be rotated. The stud is driven to rotate by the knob, and the stud drives the clamping block to clamp and position the plate-shaped small specimen, so as to fix plate-shaped small specimens of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the structural schematic diagram of the support component of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the positioning component of the present utility model;

[0019] Figure 4 is the bottom view structural schematic diagram of the support plate of the present utility model.

[0020] In the figure: 1. Base; 11. Mounting hole; 2. Support assembly; 21. Support plate; 22. Lead screw; 23. Handle; 24. Slide bar; 25. Dovetail bar; 3. Positioning assembly; 31. Support base; 32. Stud; 33. Knob; 34. Clamping block; 35. Dovetail groove. Detailed implementation manners

[0021] The following further describes the present utility model in conjunction with embodiments.

[0022] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the concept of the present utility model belongs to the scope protected by the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a positioning tooling for plate-shaped small specimens, including a base 1, a support assembly 2 and a positioning assembly 3. Mounting holes 11 are provided at the four corners of the base 1. The mounting holes 11 are U-shaped holes. The base 1 can be fixed on the machine tool through the mounting holes 11. The support assembly 2 includes a support plate 21, a lead screw 22, a handle 23 and a slide bar 24. The support plate 21 is fixedly installed on the base 1 in an inverted U shape. The plate-shaped small specimen can be supported through the support plate 21.

[0024] Referring to Figure 1 and Figure 3 , the positioning assembly 3 includes a support base 31, a stud 32, a knob 33 and a clamping block 34. The support base 31 is slidably installed under the support plate 21 in a U shape. The two sides of the support base 31 extend above the support plate 21. Studs 32 are threadedly connected to both sides of the support base 31. The clamping block 34 is arranged above the support base 31, and the clamping block 34 is rotatably installed at one end of the stud 32. The knob 33 is fixedly installed at the end of the stud 32 away from the clamping block 34. Through the setting of the positioning assembly 3, the plate-shaped small specimen is placed on the support plate 21, and then the knob 33 can be rotated. By driving the stud 32 to rotate through the knob 33, the stud 32 drives the clamping block 34 to clamp and position the plate-shaped small specimen, so that plate-shaped small specimens with different widths can be fixed.

[0025] Referring to Figure 1 , Figure 2 and Figure 4, the lead screw 22 is arranged below the support plate 21. Both ends of the lead screw 22 are rotatably connected to the support plate 21 through bearings. The handle 23 is arranged on one side of the support plate 21, and the handle 23 is fixedly connected to one end of the lead screw 22. The lead screw 22 is a bi-directional lead screw. Two support seats 31 are respectively sleeved on both ends of the lead screw 22 and are threadedly connected to the lead screw 22. There are two slide bars 24. The two slide bars 24 are respectively arranged on both sides of the lead screw 22, and both ends of the slide bar 24 are fixedly connected to the support plate 21. The support seat 31 is sleeved on the slide bar 24 and is slidably connected to the slide bar 24. Through the cooperation of the support assembly 2 and the positioning assembly 3, during positioning, the handle 23 can be rotated, and the lead screw 22 is driven to rotate by the handle 23. Under the guiding action of the slide bar 24, the lead screw 22 drives the two support seats 31 to move relatively or oppositely along the lead screw 22. After placing the plate-shaped small specimen on the support plate 21, the two positioning assemblies 3 can be respectively adjusted to both ends of the plate-shaped small specimen according to the length of the plate-shaped small specimen, so as to fix plate-shaped small specimens of different lengths.

[0026] Further, a dovetail bar 25 is provided on the lower surface of the support plate 21, and a dovetail groove 35 slidably matched with the dovetail bar 25 is formed on the top surface of the support seat 31. Through the cooperation of the dovetail bar 25 and the dovetail groove 35, the support seat 31 can be limited, and the stability of the support seat 31 is improved.

[0027] The working principle and usage process of the present utility model: First, during positioning, the plate-shaped small specimen is supported by the support plate 21. Through the cooperation of the support assembly 2 and the positioning assembly 3, the handle 23 can be rotated, and the lead screw 22 is driven to rotate by the handle 23. Under the guiding action of the slide bar 24, the lead screw 22 drives the two support seats 31 to move relatively or oppositely along the lead screw 22. After placing the plate-shaped small specimen on the support plate 21, the two positioning assemblies 3 can be respectively adjusted to both ends of the plate-shaped small specimen according to the length of the plate-shaped small specimen, so as to fix plate-shaped small specimens of different lengths. Then, through the setting of the positioning assembly 3, the knob 33 can be rotated, and the stud 32 is driven to rotate by the knob 33, so that the stud 32 drives the clamping block 34 to clamp and position the plate-shaped small specimen, so as to fix plate-shaped small specimens of different widths.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A small plate-shaped specimen positioning tool, comprising a base (1), a support assembly (2) and a positioning assembly (3), characterized in that: The support assembly (2) comprises a support plate (21), a lead screw (22), a handle (23) and a slide bar (24); the support plate (21) is fixedly mounted on the base (1) in an inverted U shape; the lead screw (22) is arranged below the support plate (21); both ends of the lead screw (22) are rotatably connected to the support plate (21) via bearings; The positioning assembly (3) comprises a support seat (31), a stud (32), a knob (33) and a clamping block (34); the support seat (31) is slidably mounted under the support plate (21) in a U-shape; the lead screw (22) is a bidirectional lead screw; the two support seats (31) are respectively sleeved on the two ends of the lead screw (22) and are threadedly connected to the lead screw (22); both sides of the support seat (31) are threadedly connected with the stud (32); the clamping block (34) is arranged above the support seat (31), and the clamping block (34) is rotatably mounted on one end of the stud (32).

2. A plate-shaped small specimen positioning tool according to claim 1, characterized in that: The handle (23) is arranged on one side of the support plate (21), and the handle (23) is fixedly connected to one end of the lead screw (22).

3. A plate-shaped small specimen positioning tool according to claim 1, characterized in that: There are two slide bars (24), which are respectively arranged on both sides of the lead screw (22), and both ends of the slide bars (24) are fixedly connected to the support plate (21), and the support seat (31) is sleeved on the slide bars (24) and slidably connected to the slide bars (24).

4. A plate-shaped small specimen positioning tool according to claim 1, characterized in that: A dovetail strip (25) is provided on the lower surface of the support plate (21), and a dovetail groove (35) slidably matched with the dovetail strip (25) is provided on the top surface of the support seat (31).

5. The small plate-shaped specimen positioning tool according to claim 1, characterized in that: The knob (33) is fixedly mounted on an end of the stud (32) away from the clamping block (34).

6. A small plate-shaped specimen positioning tool according to claim 1, characterized in that: The four corners of the base (1) are each provided with mounting holes (11), and the mounting holes (11) are U-shaped holes.

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