Bolt test tool

Abstract

The utility model discloses a bolt test tool which comprises a supporting seat, the top of the supporting seat is provided with a limiting groove, the limiting groove is used for placing a bolt, the bottom of the bolt is inserted into the limiting groove, and the bolt is axially arranged in the left-right direction; comprising a second pressing plate, the second pressing plate is located above the supporting base, the second pressing plate can move up and down, and the second pressing plate moves downwards and can press the bolt together with the supporting base; comprising a rotating sleeve, the rotating sleeve can move left and right and can rotate along the axis of the rotating sleeve, the rotating sleeve comprises a cylinder, a bolt comprises a threaded part axially far away from one side of a supporting seat, and the threaded part can be inserted into the cylinder in a threaded connection manner; the rotating sleeve is rotationally connected with a main cylinder; an inserting block is mounted at the bottom of the main cylinder; comprising a sliding block, the sliding block can move left and right, a sleeve is installed at the top of the sliding block, an insertion block is inserted into the top of the sleeve and sleeved with a second spring, the upper end of the second spring abuts against the insertion block, and the lower end of the second spring abuts against the sleeve so that the insertion block can move up and down. The utility model provides a bolt test tool which can reduce test damage to bolts.

Description

Technical Field

[0001] This utility model relates to the field of strength testing equipment technology, and more specifically, to a bolt testing fixture. Background Technology

[0002] Because the threaded end of a bolt is located at the tail, it is easily bent by radial external forces in practical applications. Currently, the bending strength test is required for bolts during factory inspection. However, during the test, the external force block acts directly on the outer wall of the bolt thread, which can easily lead to insufficient contact area and damage to the thread, thus presenting a deficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a bolt testing fixture that reduces test damage to bolts.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a bolt testing fixture, including a support base, a limiting groove on the top of the support base for placing bolts, the bottom of the bolts being inserted into the limiting groove, and the bolts being axially oriented in the left and right directions; including a pressure plate two, located above the support base, the pressure plate two being able to move up and down, and the pressure plate two being able to press the bolts against the support base when moving downwards; including a rotating sleeve, the rotating sleeve being able to move left and right and rotate along its own axis, the rotating sleeve including a cylindrical body, the bolt including a threaded portion on the side axially away from the support base, the threaded portion being able to be threadedly inserted into the cylindrical body; the rotating sleeve being rotatably connected to a main cylinder, and an insert block being installed at the bottom of the main cylinder; including a slider, the slider being able to move left and right, a sleeve being installed on the top of the slider, the insert block being inserted into the top of the sleeve, the insert block being fitted with a spring two, the upper end of the spring two abutting against the insert block, and the lower end of the spring two abutting against the sleeve, so that the insert block can move up and down.

[0005] The present invention is further configured to include a base plate, a slide rail is mounted on the upper end of the base plate, a pressure plate is slidably connected to the slide rail, and the pressure plate can move left and right to approach or move away from the support seat; a fixed seat is mounted on the base plate, a plug rod is mounted on the fixed seat, a spring is sleeved on the plug rod, the left end of the spring abuts against the fixed seat, and the right end of the spring abuts against the pressure plate.

[0006] The present invention is further configured such that a baffle is installed on the base plate, and the baffle is located on the left side of the support.

[0007] The present invention is further configured such that the outer wall of the cylinder is polygonal.

[0008] The present invention is further configured such that, in the free state, the rotating sleeve is located at the highest position, and the rotating sleeve is coaxial with the bolt.

[0009] The present invention is further configured such that the rotating sleeve is inserted into the main cylinder, the main cylinder and the rotating sleeve are connected by a bearing, the main cylinder is equipped with a motor, and the output end of the motor is connected to the rotating sleeve.

[0010] The present invention is further configured such that the slider is connected to a driving component, and the slider moves left and right under the drive of the driving component.

[0011] In summary, this utility model has the following beneficial effects:

[0012] The testing machine's pressure head applies downward pressure to the cylinder from the top to test the bolt's impact bending strength. During the test, the cylinder effectively protects the bolt's threaded portion, preventing damage to the threaded portion and ensuring that the bolt can still be used normally after the non-destructive test, thus reducing test damage to the bolt. Attached Figure Description

[0013] Figure 1 This is a cross-sectional schematic diagram of an embodiment;

[0014] Figure 2 for Figure 1 A partial sectional view along the PP direction;

[0015] Figure 3 for Figure 1 A partial cross-sectional view of the central QQ direction.

[0016] Reference numerals in the attached drawings: base plate 1, slide rail 11, pressure plate 111, slide rail 2 12, drive component 13, baffle 14, support seat 15, limiting groove 151, fixed seat 2, insert rod 21, spring 1 22, pressure plate 2 3, groove 1 31, testing machine pressure head 4, bolt 5, threaded part 51, limiting end 52, rotating sleeve 6, cylinder 61, bearing 62, main cylinder 7, motor 71, insert block 72, slider 8, sleeve 81, spring 2 82. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-3As shown, this embodiment discloses a bolt testing fixture, including a base plate 1. A slide rail 11 is mounted on the upper end of the base plate 1, and a pressure plate 111 is slidably connected to the slide rail 11. The pressure plate 111 can move left and right. A fixed seat 2 is mounted on the base plate 1, and an insert rod 21 is mounted on the fixed seat 2. A spring 22 is sleeved on the insert rod 21. The left end of the spring 22 abuts against the fixed seat 2, and the right end of the spring 22 abuts against the pressure plate 111. A baffle 14 and a support seat 15 are mounted on the upper end of the base plate 1. The baffle 14 is located to the left of the support seat 15. The pressure plate 111 moves left and right to approach or move away from the support seat 15. When the pressure plate 111 is in the right limit position under the spring force of the spring 22, the pressure plate 111 abuts against the baffle 14.

[0019] like Figure 1 , Figure 2 As shown, the top of the support base 15 is provided with a limiting groove 151, which extends through the top of the support base 15 to form an opening. The limiting groove 151 is used to place the bolt 5. Figure 1 In the bolt 5, there are threaded parts 51 and limiting ends 52. The threaded parts 51 are located at the right end of the bolt 5, and the limiting ends 52 are close to the left end of the bolt 5. The bottom of the limiting ends 52 is inserted into the limiting groove 151. The bolt 5 is set in the left and right directions.

[0020] like Figure 1 As shown, the bolt testing fixture includes a pressure plate 3, which is located above the support base 15. The pressure plate 3 can move up and down. When the pressure plate 3 moves downward, it can press the bolt 5 against the support base 15 to form a fulcrum. Figure 2 In the middle, the bottom of the pressure plate 2 3 is provided with a groove 31, and the wall of the groove 31 can press down the bolt 5.

[0021] like Figure 1 As shown, the bolt testing fixture includes a main cylinder 7 and a slider 8. The slider 8 is located below the main cylinder 7, and its bottom is slidably connected to a second slide rail 12. The second slide rail 12 is mounted on the base plate 1. The slider 8 is connected to a driving component 13, and the slider 8 moves left and right under the drive of the driving component 13. A sleeve 81 is installed on the top of the slider 8. The main cylinder 7 is located on the right side of the support base 15, and an insert block 72 is installed at the bottom of the main cylinder 7. The insert block 72 is inserted into the top of the sleeve 81, and a second spring 82 is fitted onto the insert block 72. The upper end of the second spring 82 abuts against the insert block 72, and the lower end of the second spring 82 abuts against the sleeve 81, so that the insert block 72 can move up and down.

[0022] like Figure 1 As shown, a rotating sleeve 6 is fixedly installed on the main cylinder 7. The rotating sleeve 6 moves left and right with the main cylinder 7. Specifically, the rotating sleeve 6 is inserted into the main cylinder 7, and the main cylinder 7 and the rotating sleeve 6 are connected by a bearing 62.

[0023] The main cylinder 7 is equipped with a motor 71, and the output end of the motor 71 is connected to the rotating sleeve 6 so that the rotating sleeve 6 can rotate along its own axis.

[0024] The rotating sleeve 6 includes a cylindrical body 61 located on the left side. The outer wall of the cylindrical body 61 is polygonal, preferably a regular quadrilateral. In the free state, the rotating sleeve 6 is in the highest position. The rotating sleeve 6 is coaxial with the bolt 5. The threaded part 51 can be threaded into the cylindrical body 61. During insertion, the threaded connection is completed by rotating the cylindrical body 61 and moving it to the left.

[0025] After bolt 5 is clamped, the pressure head 4 of the testing machine applies downward pressure to the cylinder 61 from the top to test the impact bending strength of bolt 5. During the test, the cylinder 61 effectively protects the threaded part 51 of bolt 5, preventing damage to the threaded part 51, so as to ensure that bolt 5 can still be used normally after the non-destructive test and reduce the test damage to bolt 5.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bolt testing fixture, characterized in that, Includes a support base (15), the top of which is provided with a limiting groove (151), the limiting groove (151) is used to place a bolt (5), the bottom of the bolt (5) is inserted into the limiting groove (151), and the bolt (5) is axially arranged in the left and right directions; Includes a pressure plate 2 (3), which is located above the support base (15). The pressure plate 2 (3) can move up and down. When the pressure plate 2 (3) moves downward, it can press the bolt (5) against the support base (15). Includes a rotating sleeve (6), which can move left and right and rotate along its own axis. The rotating sleeve (6) includes a cylindrical body (61). The bolt (5) includes a threaded portion (51) on the side axially away from the support seat (15). The threaded portion (51) can be threadedly inserted into the cylindrical body (61). The rotating sleeve (6) is rotatably connected to the main cylinder (7), and the bottom of the main cylinder (7) is equipped with an insert block (72); Includes a slider (8) that can move left and right. A sleeve (81) is installed on the top of the slider (8). A plug (72) is inserted into the top of the sleeve (81). A spring (82) is fitted on the plug (72). The upper end of the spring (82) abuts against the plug (72), and the lower end of the spring (82) abuts against the sleeve (81), so that the plug (72) can move up and down.

2. The bolt testing fixture according to claim 1, characterized in that, Includes a base plate (1), on the upper end of which a slide rail (11) is installed, and a pressure plate (111) is slidably connected to the slide rail (111), and the pressure plate (111) can move left and right to approach or move away from the support base (15). The base plate (1) is equipped with a fixed seat (2), the fixed seat (2) is equipped with a plug rod (21), the plug rod (21) is fitted with a spring (22), the left end of the spring (22) abuts against the fixed seat (2), and the right end of the spring (22) abuts against the pressure plate (111).

3. The bolt testing fixture according to claim 2, characterized in that, The base plate (1) is equipped with a baffle (14), which is located on the left side of the support base (15).

4. The bolt testing fixture according to claim 1, characterized in that, The outer wall of the cylinder (61) is polygonal.

5. A bolt testing fixture according to claim 1, characterized in that, In the free state, the rotating sleeve (6) is in the highest position, and the rotating sleeve (6) is coaxial with the bolt (5).

6. The bolt testing fixture according to claim 1, characterized in that, The rotating sleeve (6) is inserted into the main cylinder (7), and the main cylinder (7) and the rotating sleeve (6) are connected by a bearing (62). The main cylinder (7) is equipped with a motor (71), and the output end of the motor (71) is connected to the rotating sleeve (6).

7. A bolt testing fixture according to claim 1, characterized in that, The slider (8) is connected to a driving component (13), and the slider (8) moves left and right under the drive of the driving component (13).

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