Self-adaptive clamping fixture for preventing skidding during steel bar tension detection

Abstract

The utility model discloses a kind of self-adapting clamping fixtures for preventing skidding during steel bar tensile detection, and it relates to steel bar tensile detection technical field.A kind of self-adapting clamping fixtures for preventing skidding during steel bar tensile detection, comprising: mounting plate, the upper end of the mounting plate is fixedly connected with support seat, the upper end first tooth profile plate of the support seat, the upper of the first tooth profile plate is provided with second tooth profile plate, the upper end of the mounting plate is fixedly connected with fixed frame, compression assembly and stabilizing assembly, the compression assembly is located on fixed frame, the compression assembly is used to drive the movement of second tooth profile plate, the stabilizing assembly is located on the both sides of upper end inside fixed frame, the stabilizing assembly is used to the tight fixing of second tooth profile plate.Solve the existing clamping fixture, clamping effect is poor, when people use clamping fixture, unable to the stable clamping fixation of steel bar, prone to the phenomenon of steel bar in tensile, slip, the technical problem of inconvenient for people to use.

Description

Technical Field

[0001] This utility model relates to the field of steel bar tensile testing technology, and in particular to an adaptive clamping fixture to prevent slippage during steel bar tensile testing. Background Technology

[0002] The mechanical properties of steel bars are an important guarantee for the safety of building structures. In order to fully understand the performance of steel bars, a series of mechanical property tests are required. These tests include tensile tests, bending tests, flattening tests, impact tests, hardness tests, and fatigue tests. Clamping fixtures are required in the tensile testing of steel bars.

[0003] However, existing technologies have some problems: existing clamping fixtures have poor clamping effect. When people use clamping fixtures, they cannot stably clamp and fix the steel bars, which can easily cause the steel bars to slip during tension testing, making them inconvenient for people to use. Therefore, it is necessary to provide an adaptive clamping fixture that prevents slippage during steel bar tension testing to solve the above technical problems. Utility Model Content

[0004] This utility model provides an adaptive clamping fixture to prevent slippage during steel bar tensile testing. It solves the technical problem that existing clamping fixtures have poor clamping effect, cannot stably clamp and fix the steel bars when used, and are prone to slippage during tensile testing, making them inconvenient for users.

[0005] To solve the above-mentioned technical problems, this utility model provides an adaptive clamping fixture to prevent slippage during steel bar tensile testing, comprising:

[0006] Mounting plate, the upper end of which is fixedly connected to a support base, the upper end of which has a first toothed plate, and a second toothed plate is provided above the first toothed plate. The upper end of the mounting plate is fixedly connected to a fixing frame.

[0007] The clamping assembly and the stabilizing assembly are located on the fixed frame and are used to drive the movement of the second toothed plate. The stabilizing assembly is located on both sides of the upper end inside the fixed frame and is used to clamp and fix the second toothed plate.

[0008] Preferably, the clamping assembly includes a hydraulic rod, the output end of which extends through to the lower end of the fixed frame and is fixedly connected to a movable plate, the lower end of which is fixed to the upper end of the second toothed plate.

[0009] Preferably, the stabilizing component includes a housing, with a tensioning spring fixedly connected to the upper end inside the housing, and a limit plate fixedly connected to the lower end of the tensioning spring.

[0010] Preferably, a top rod is fixedly connected to the lower end of the limiting plate, and the lower end of the top rod extends through to the lower end of the outer shell and is fixedly connected to the upper end of the movable plate.

[0011] Preferably, the front and rear ends of both sides of the mounting plate are fixedly connected to fixing blocks, and fixing holes are provided on the fixing blocks.

[0012] Preferably, the fixed frame has sliding grooves on both sides inside, and a slider is slidably connected inside the sliding groove. One side of the slider is fixedly connected to both sides of the movable plate.

[0013] Compared with related technologies, the self-adaptive clamping fixture for preventing slippage during steel bar tensile testing provided by this utility model has the following beneficial effects:

[0014] This utility model provides an adaptive clamping fixture to prevent slippage during steel bar tensile testing. Through the cooperation of the first toothed plate and the second toothed plate, it plays a good role in preventing slippage of the steel bar during the clamping process, thus solving the problem that steel bars are prone to slippage during clamping.

[0015] This utility model provides an adaptive clamping fixture to prevent slippage during rebar tensile testing. The fixed block design facilitates the installation of the mounting plate during use, solving the problem of inconvenient installation of the mounting plate.

[0016] This utility model provides an adaptive clamping fixture to prevent slippage during rebar tensile testing. By utilizing the cooperation of the sliding groove and the slider, the moving plate moves smoothly during use, solving the problem of shaking that easily occurs during the use of the moving plate. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of an adaptive clamping fixture for preventing slippage during steel bar tensile testing provided by this utility model;

[0018] Figure 2 This is a bottom view of the fixing frame structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the outer shell structure of this utility model.

[0020] The following are the labels in the diagram: 1. Mounting plate; 2. Support base; 3. First toothed plate; 4. Second toothed plate; 5. Fixing frame; 6. Pressing assembly; 61. Hydraulic rod; 62. Moving plate; 7. Stabilizing assembly; 71. Housing; 72. Top spring; 73. Limiting plate; 74. Top rod; 8. Fixing block; 9. Slide groove; 10. Slider. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Example 1:

[0023] Please see Figure 1-3 This utility model provides a technical solution: an adaptive clamping fixture to prevent slippage during rebar tensile testing, comprising: a mounting plate 1, a support base 2 fixedly connected to the upper end of the mounting plate 1, a first toothed plate 3 at the upper end of the support base 2, a second toothed plate 4 disposed above the first toothed plate 3, a fixing frame 5 fixedly connected to the upper end of the mounting plate 1, a pressing component 6 and a stabilizing component 7, the pressing component 6 being located on the fixing frame 5 and used to drive the movement of the second toothed plate 4, and the stabilizing component 7 being located on both sides of the upper end inside the fixing frame 5 and used to press and fix the second toothed plate 4.

[0024] In this implementation scheme, the mounting plate 1 is first installed on the tensile testing machine of the external device by the fixing block 8. Then, the tail end of the steel bar to be tested is placed on the first toothed plate 3. At this time, the hydraulic rod 61 drives the moving plate 62 to move downward. The moving plate 62 drives the slider 10 to slide in the slide groove 9. At the same time, the top spring 72 pushes the limiting plate 73 downward. The limiting plate 73 drives the top rod 74 to move downward. The top rod 74 pushes the moving plate 62 downward.

[0025] Example 2:

[0026] Please see Figure 1-3 As shown, based on Embodiment 1, this utility model provides a technical solution: the clamping component 6 includes a hydraulic rod 61, the output end of the hydraulic rod 61 passes through to the lower end of the fixed frame 5 and is fixedly connected to a moving plate 62, the lower end of the moving plate 62 is fixed to the upper end of the second toothed plate 4, the stabilizing component 7 includes a housing 71, the upper end of the housing 71 is fixedly connected to a top spring 72, the lower end of the top spring 72 is fixedly connected to a limit plate 73, the lower end of the limit plate 73 is fixedly connected to a top rod 74, the lower end of the top rod 74 passes through to the lower end of the housing 71 and is fixedly connected to the upper end of the moving plate 62, the front and rear ends of both sides of the mounting plate 1 are fixedly connected to a fixing block 8, the fixing block 8 is provided with a fixing hole, the two sides of the fixed frame 5 are provided with a sliding groove 9, the sliding groove 9 is slidably connected to a slider 10, one side of the slider 10 is fixedly connected to both sides of the moving plate 62.

[0027] In this embodiment: the synchronous moving plate 62 drives the second toothed plate 4 to move downward, so that the second toothed plate 4 presses and fixes the steel bar on the first toothed plate 3. Due to the toothed strips of the first toothed plate 3 and the second toothed plate 4, the first toothed plate 3 and the second toothed plate 4 can be embedded into the surface of the steel bar to prevent the steel bar from slipping.

[0028] The working principle of the adaptive clamping fixture for preventing slippage during steel bar tensile testing provided by this utility model is as follows:

[0029] Implementation steps for the first innovation point:

[0030] Step 1: First, install the mounting plate 1 on the external tensile testing machine using the fixing block 8. Then, place the tail end of the steel bar to be tested on the first toothed plate 3. At this time, the hydraulic rod 61 drives the moving plate 62 to move downward.

[0031] Step 2: The moving plate 62 drives the slider 10 to slide in the slide groove 9, while the tightening spring 72 pushes the limiting plate 73 downward. The limiting plate 73 drives the push rod 74 to move downward, and the push rod 74 pushes the moving plate 62 downward.

[0032] Implementation steps for the second innovation point:

[0033] Step 1: The synchronous moving plate 62 drives the second toothed plate 4 to move downward, so that the second toothed plate 4 presses and fixes the steel bars on the first toothed plate 3;

[0034] Step 2: Due to the toothed strips of the first toothed plate 3 and the second toothed plate 4, the first toothed plate 3 and the second toothed plate 4 can be embedded into the surface of the reinforcing bar to prevent the reinforcing bar from slipping out.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-adapting clamping fixture for preventing slippage during steel bar tension detection, characterized in that: include: Mounting plate (1), the upper end of the mounting plate (1) is fixedly connected to a support base (2), the upper end of the support base (2) has a first toothed plate (3), a second toothed plate (4) is provided above the first toothed plate (3), and the upper end of the mounting plate (1) is fixedly connected to a fixing frame (5). The clamping assembly (6) and the stabilizing assembly (7) are located on the fixing frame (5) and are used to drive the movement of the second toothed plate (4). The stabilizing assembly (7) is located on both sides of the upper end inside the fixing frame (5) and is used to clamp and fix the second toothed plate (4).

2. The self-adapting clamping fixture for preventing slippage during steel bar tension detection according to claim 1, characterized in that, The clamping assembly (6) includes a hydraulic rod (61), the output end of which extends through to the lower end of the fixed frame (5) and is fixedly connected to a movable plate (62), the lower end of which is fixed to the upper end of the second toothed plate (4).

3. The adaptive clamping fixture for preventing slippage during rebar tensile testing according to claim 1, characterized in that, The stabilizing component (7) includes a housing (71), with a top spring (72) fixedly connected to the upper end inside the housing (71), and a limit plate (73) fixedly connected to the lower end of the top spring (72).

4. The adaptive clamping fixture for preventing slippage during rebar tensile testing according to claim 3, characterized in that, The lower end of the limiting plate (73) is fixedly connected to a top rod (74), the lower end of the top rod (74) extends through to the lower end of the outer shell (71) and is fixedly connected to the upper end of the moving plate (62).

5. The adaptive clamping fixture for preventing slippage during rebar tensile testing according to claim 1, characterized in that, Fixing blocks (8) are fixedly connected to the front and rear ends of both sides of the mounting plate (1), and fixing holes are provided on the fixing blocks (8).

6. The adaptive clamping fixture for preventing slippage during rebar tensile testing according to claim 1, characterized in that, The fixed frame (5) has sliding grooves (9) on both sides inside. A slider (10) is slidably connected inside the sliding groove (9). One side of the slider (10) is fixedly connected to both sides of the moving plate (62).

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