Core bending device for bending test

Abstract

The utility model discloses a bending core device for a bending test. The bending core device comprises a base and a plug-in bending core, according to the utility model, under the arrangement of the mounting holes, the base and a tester oil cylinder can be connected together, subsequent bending tests are facilitated, under the arrangement of the limiting strips and the notches, the plate-shaped core body and the insertion strips can be quickly and conveniently disassembled and assembled, a user can conveniently replace and adjust the plate-shaped core body according to the plate thickness, and the working efficiency is improved. After installation of the inserting strip and the plate-shaped core body is completed, a user pulls a fixing rod outwards, movement of the fixing rod drives a limiting plate to move, under limiting of a fixing frame, movement of the limiting plate enables a reset spring to be compressed, then the inserting strip is inserted into an inserting groove, finally the fixing rod is loosened, and under the reset acting force of the reset spring, the inserting strip is inserted into the inserting groove. The fixing rods are inserted into the insertion holes in the side walls of the insertion strips, installation and fixation among the insertion strips, the plate-shaped core body and the base are completed, and the device is rapid in overall installation, free of overall replacement, low in production cost and easy to machine.

Description

Technical Field

[0001] The utility model relates to the technical field related to metal bending tests, in particular to a bending core device for bending tests. Background Art

[0002] In the metal bending test, the specimen is mounted on a bending device, and pressure is applied to the center of the specimen through a bending indenter to bend the specimen to a preset angle. The surface of the specimen is then observed to see if there are cracks or significant depressions, thereby determining the bending forming properties of the material.

[0003] The existing technology has the following shortcomings: when conducting bending tests on existing metals, most of them use bending devices such as support rollers, dies or vises, but the diameter of the bending pressure head of the support roller bending device cannot cover all plate thickness requirements, the bending angle of the V-shaped die of the die-type bending device cannot cover all angles required by the test, and the clamp-type bending device is only suitable for a 180° bending angle and is not suitable for other bending angles, resulting in poor practicality. At the same time, the above-mentioned bending devices have complex structures and are not convenient for users to install and use. Utility Model Content

[0004] The purpose of the present invention is to provide a bending core device for bending test to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a bending core device for bending test, comprising a base and an inserted bending core, two sets of columns are integrally installed on both sides of the bottom of the base, a mounting hole is provided on the top of the base, a slot is provided on the side wall of the column, and a fixing mechanism is installed on the side wall of the base, which can fix the inserted bending core.

[0006] As a further preferred embodiment of the present technical solution, the insertable bending core includes two groups of insertion strips, a plate-shaped core body, a limiting strip and two groups of notches. The two groups of insertion strips are arranged in the slots, the plate-shaped core body is arranged between the insertion strips, the limiting strips are welded and installed on the side walls of the insertion strips, and the two groups of notches are symmetrically opened on the side walls of the plate-shaped core body.

[0007] As a further preferred embodiment of the present technical solution, the mounting holes can be used to connect to the oil cylinder of the testing machine, and the two groups of columns are symmetrically arranged.

[0008] As a further preferred embodiment of the present technical solution, the inserting strip is provided corresponding to the slot, and the limiting strip is provided corresponding to the notch.

[0009] As a further preferred embodiment of the present technical solution, the fixing mechanism includes a socket, a fixing frame, a fixing rod, a limit plate and a return spring, the socket is opened on the side wall of the insertion strip and the surface of the column, the fixing frame is installed on the side wall of the column, the fixing rod is installed on both sides of the fixing frame, the limit plate is installed on the outside of the fixing rod, and the return spring is installed on the outside of the fixing rod.

[0010] As a further preferred embodiment of the present technical solution, the cross section of the fixing frame is a 匚-shaped structure, the fixing rod and the insertion hole are arranged correspondingly, and the reset spring is located between the fixing frame and the limiting plate.

[0011] The utility model provides a bending core device for bending test, which has the following beneficial effects:

[0012] The utility model is provided with a mounting hole, the base can be connected to the oil cylinder of the testing machine, which is convenient for subsequent bending tests; with the setting of the limit strip and the notch, the plate-like core and the insert strip can be quickly and conveniently disassembled and assembled, which is convenient for users to replace and adjust the plate-like core according to the thickness of the plate; with the setting of the fixing rod, the limit plate, the fixing frame, the return spring and the jack, the installation and fixation between the insert strip, the plate-like core and the base can be completed; the overall installation of the device is fast, no overall replacement is required, the production cost is low and the processing is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the insert-type bending core structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0017] In the figure: 1. Base; 2. Column; 3. Mounting hole; 4. Slot; 5. Insertable bent core; 6. Insert strip; 7. Plate core; 8. Limit strip; 9. Notch; 10. Socket; 11. Fixing bracket; 12. Fixing rod; 13. Limiting plate; 14. Return spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figure 1 and Figure 3As shown, in this embodiment, a bending core device for a bending test includes a base 1 and an inserted bending core 5. Two groups of columns 2 are integrally installed on both sides of the bottom of the base 1. A mounting hole 3 is opened on the top of the base 1. A slot 4 is opened on the side wall of the column 2. A fixing mechanism is installed on the side wall of the base 1. The fixing mechanism can fix the inserted bending core 5. The inserted bending core 5 includes two groups of inserts 6, a plate-shaped core 7, a limit strip 8 and two groups of notches 9. The two groups of inserts 6 are arranged in the slots 4, and the plate-shaped core 7 is arranged between the inserts 6. The limiting strip 8 is welded and installed on the side wall of the insertion strip 6, and the two groups of notches 9 are symmetrically opened on the side wall of the plate-like core 7. The mounting hole can be used to connect the test machine cylinder. The two groups of columns 2 are symmetrically arranged, the insertion strip 6 and the slot 4 are arranged correspondingly, and the limiting strip 8 and the notch 9 are arranged correspondingly. Under the setting of the mounting hole 3, the base 1 and the test machine cylinder can be connected together, which is convenient for subsequent bending tests. Under the setting of the limiting strip 8 and the notch 9, the plate-like core 7 and the insertion strip 6 can be quickly and conveniently disassembled and assembled, which is convenient for users to replace and adjust the plate-like core 7 according to the thickness of the plate.

[0020] like Figure 2 and Figure 4 As shown, the fixing mechanism includes a socket 10, a fixing frame 11, a fixing rod 12, a limit plate 13 and a return spring 14. The socket 10 is opened on the side wall of the insertion strip 6 and the surface of the column 2. The fixing frame 11 is installed on the side wall of the column 2. The fixing rod 12 is installed on both sides of the fixing frame 11. The limit plate 13 is installed on the outside of the fixing rod 12. The return spring 14 is installed on the outside of the fixing rod 12. The cross section of the fixing frame 11 is a 匚-shaped structure. The fixing rod 12 is corresponding to the socket 10. The return spring 14 is located at the fixing frame 11. Between the fixed frame 11 and the limiting plate 13, the user pulls the fixing rod 12 outward, and the movement of the fixing rod 12 drives the limiting plate 13 to move. Under the limitation of the fixing frame 11, the movement of the limiting plate 13 causes the return spring 14 to be compressed, and then the insertion strip 6 is inserted into the slot 4. Finally, the fixing rod 12 is released. Under the restoring force of the return spring 14, the fixing rod 12 is inserted into the insertion hole 10 on the side wall of the insertion strip 6, completing the installation and fixation between the insertion strip 6, the plate-shaped core 7 and the base 1. The overall installation of the device is fast, no overall replacement is required, the production cost is low, and the processing is simple.

[0021] The utility model provides a bending core device for bending test, and the specific working principle is as follows:

[0022] When using the bending core device for bending test, the base 1 and the test machine cylinder can be connected together under the setting of the mounting hole 3, which is convenient for subsequent bending tests. Under the setting of the limit strip 8 and the notch 9, the plate core 7 and the inserting strip 6 can be quickly and conveniently disassembled and assembled, which is convenient for users to replace and adjust the plate core 7 according to the thickness of the plate. After completing the installation between the inserting strip 6 and the plate core 7, the user pulls the fixing rod 12 outward, and the movement of the fixing rod 12 drives the limiting plate 13 to move. Under the limitation of the fixing frame 11, the movement of the limiting plate 13 causes the return spring 14 to be compressed, and then the inserting strip 6 is inserted into the slot 4. Finally, the fixing rod 12 is loosened. Under the reset force of the return spring 14, the fixing rod 12 is inserted into the jack hole 10 on the side wall of the inserting strip 6, completing the installation and fixation between the inserting strip 6, the plate core 7 and the base 1. The overall installation of the device is fast, no overall replacement is required, the production cost is low, and the processing is simple.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending core device for bending test, characterized in that: It includes a base (1) and an insertable bending core (5). On both sides of the bottom of the base (1), two groups of columns (2) are integrally installed. An installation hole (3) is provided at the top of the base (1). A slot (4) is provided on the side wall of the column (2). A fixing mechanism is installed on the side wall of the base (1), and the fixing mechanism can fix the insertable bending core (5). The insertable bending core (5) includes two groups of insertion strips (6), a plate-shaped core body (7), a limiting strip (8), and two groups of gaps (9). The two groups of insertion strips (6) are arranged in the slot (4). The plate-shaped core body (7) is arranged between the insertion strips (6). The limiting strip (8) is welded and installed on the side wall of the insertion strip (6). The two groups of gaps (9) are symmetrically provided on the side wall of the plate-shaped core body (7).

2. A bending core device for a bending test according to claim 1, characterized in that: The installation hole (3) can be used to connect the test oil cylinder, and the two groups of columns (2) are symmetrically arranged.

3. A bending core device for a bending test according to claim 2, characterized in that: The insertion strip (6) is correspondingly arranged with the slot (4), and the limiting strip (8) is correspondingly arranged with the gap (9).

4. A bending core device for a bending test according to claim 1, characterized in that: The fixing mechanism includes a jack (10), a fixing frame (11), a fixing rod (12), a limiting plate (13), and a return spring (14). The jack (10) is provided on the side wall of the insertion strip (6) and the surface of the column (2). The fixing frame (11) is installed on the side wall of the column (2). The fixing rod (12) is inserted and installed on both sides of the fixing frame (11). The limiting plate (13) is sleeved and installed outside the fixing rod (12). The return spring (14) is sleeved and installed outside the fixing rod (12).

5. A bending core device for bending test according to claim 4, characterized in that: The cross-section of the fixing frame (11) is in a U-shaped structure. The fixing rod (12) is correspondingly arranged with the jack (10), and the return spring (14) is located between the fixing frame (11) and the limiting plate (13).

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