Positioning tool for testing strength of concrete member

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning tool for testing the strength of a concrete member, which comprises a supporting unit and a positioning unit arranged on the supporting unit, the positioning unit is connected onto the supporting unit in a sliding manner, and a driving part for driving the positioning unit to move is mounted on the supporting unit; the positioning unit comprises a sliding seat sliding on the supporting unit, the two clamping arms are used for synchronously clamping a component on the supporting block, the center position of the component can be positioned, in addition, the center lines of the two clamping arms and the center line of the hydraulic rod are aligned and installed, and therefore the positioning precision of the component is improved. In this way, it can be guaranteed that the hydraulic rod abuts against the center position of the component in the subsequent pressure testing process, so that the accuracy and stability of component testing are guaranteed, the supporting block is designed to be of a sliding structure and can be suitable for size change of the component within a certain range, and the whole structural design is simple and reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning jigs, in particular to a positioning tooling for concrete component strength testing. Background Art

[0002] Concrete components refer to building structural elements mainly made of concrete, which are formed by casting, prefabrication or on-site production. They are an indispensable part of building and engineering structures and are used to bear various loads, such as gravity, pressure, bending and shear forces. The strength and durability of concrete components make them suitable for a variety of building and environmental conditions.

[0003] Before being put into use, concrete components need to be subjected to strength measurement. To ensure accurate measurement, they are usually fixed by a positioning device to ensure the stability of strength testing. For example, a positioning device for measuring the strength of concrete components disclosed in Chinese Patent Publication No. "CN216559998U".

[0004] Considering that during strength testing, it is difficult for the current positioning device to ensure that the central position of the component coincides with the central position of the hydraulic rod of the hydraulic equipment. This misalignment will cause the pressure exerted by the hydraulic rod on the component to be unevenly distributed, resulting in the test results being unable to accurately reflect the overall strength of the component. In addition, the uneven pressure may also cause local damage to the component rather than the evaluation of the overall performance. Based on this, in order to improve the accuracy of detection, we propose a positioning tooling for concrete component strength testing. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art and propose a positioning tooling for concrete component strength testing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a positioning tooling for concrete component strength testing, including a support unit and a positioning unit arranged on the support unit. The positioning unit is slidably connected to the support unit, and a driving member for driving the positioning unit to move is installed on the support unit;

[0008] The positioning unit includes a sliding seat slidable on the support unit. Two clamping arms are slidably connected above the sliding seat, and a driving assembly for controlling the synchronous movement of the two clamping arms is arranged above the sliding seat.

[0009] Further, the support unit includes a bottom plate. Two support blocks are arranged at the upper end of the bottom plate, and the sliding seat slides above the bottom plate through a sliding structure.

[0010] Furthermore, a dovetail groove is formed at the upper end of the bottom plate, and a dovetail block that slides in the dovetail groove is fixed to the bottom of the support block. Among them, a locking bolt is threadedly connected to the end face of the support block, and the bottom end of the locking bolt abuts against the bottom surface of the dovetail groove.

[0011] Furthermore, the driving member is a cylinder fixed to the bottom plate, an induction switch is fixed above the bottom plate, and an induction block adapted to the induction switch is fixed to the side end of the sliding seat.

[0012] Furthermore, the driving assembly includes racks fixed to the side ends of the clamping arms. The two racks are symmetrically arranged, and a gear meshing between the two racks is also rotatably connected above the sliding seat.

[0013] Furthermore, a pushing cylinder is also fixed to the upper end of the sliding seat, and the shaft end of the pushing cylinder is fixed to one of the racks.

[0014] A positioning tooling for concrete component strength testing proposed by the present utility model has the beneficial effects that: in the present utility model, two clamping arms are adopted to synchronously clamp the component on the support block, so as to realize the positioning of the center position of the component. In addition, by aligning the center lines of the two clamping arms with the center line of the hydraulic rod for installation, it can be ensured that during the subsequent pressure test, the hydraulic rod abuts against the center position of the component, thereby ensuring the accuracy and stability of the component test. The support block adopts a sliding structure design and can also be applicable to the size change of the component within a certain range. The whole structure design is simple and reasonable, improving the convenience of component positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the present utility model Figure 1 ;

[0016] Figure 2 is a three-dimensional view of the present utility model Figure 2 ;

[0017] Figure 3 is a top view of the present utility model.

[0018] In the figure: 1, support unit; 11, bottom plate; 12, support block; 13, dovetail groove; 14, locking bolt; 15, induction switch; 16, induction block; 2, positioning unit; 21, sliding seat; 22, clamping arm; 23, driving assembly; 231, rack; 232, gear; 233, pushing cylinder; 3, driving member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Referring to Figures 1-3 An embodiment of the present invention discloses a positioning tool for testing the strength of concrete members. Specifically, the positioning tool includes a support unit 1 and a positioning unit 2 provided on the support unit 1. The positioning unit 2 is slidably connected to the support unit 1, and a driving member 3 for driving the positioning unit 2 to move is installed on the support unit 1.

[0021] The positioning unit 2 includes a sliding seat 21 slidable on the support unit 1. Two clamping arms 22 are slidably connected above the sliding seat 21. A driving assembly 23 for controlling the synchronous movement of the two clamping arms 22 is provided above the sliding seat 21.

[0022] In some embodiments, the support unit 1 of the present invention includes a bottom plate 11. Two support blocks 12 are provided at the upper end of the bottom plate 11. The sliding seat 21 slides above the bottom plate 11 through a sliding structure. The two support blocks 12 are used to support the two ends of the concrete member to ensure that the subsequent hydraulic rod can perform a pressure test on the middle part of the member.

[0023] Based on the above embodiments, in this embodiment, a dovetail groove 13 is opened at the upper end of the bottom plate 11. A dovetail block slidable in the dovetail groove 13 is fixed to the bottom of the support block 12. Among them, a locking bolt 14 is threadedly connected to the end face of the support block 12. The bottom end of the locking bolt 14 abuts against the bottom surface of the dovetail groove 13. That is, in this embodiment, through the design of the dovetail groove 13, the support positions of the two support blocks 12 can be adjusted adaptively. After the adjustment is completed, the position of the support block 12 is locked and positioned by rotating the locking bolt 14. In addition, after the positions of the two support blocks 12 are changed, they can adapt to the support of concrete members of different lengths within a certain range.

[0024] Furthermore, in this embodiment, the driving member 3 is a cylinder fixed to the bottom plate 11. An induction switch 15 is fixed above the bottom plate 11. An induction block 16 adapted to the induction switch 15 is fixed to the side end of the sliding seat 21. Preferably, the induction switch 15 is a photoelectric switch, which is used to detect the position signal of the sliding seat 21 moving backward and resetting.

[0025] During actual operation, first align the centerlines of the two clamping arms 22 of this tooling with the centerline of the hydraulic rod. After that, the component can be placed above the two support blocks 12. Then, the cylinder pushes the entire sliding seat 21 outwards, and the two clamping arms 22 are used to move synchronously for clamping, so as to ensure the central position of the component, align the center of the component and the hydraulic rod on a straight line, and ensure the accuracy of the test.

[0026] In addition, in this embodiment, the driving assembly 23 includes racks 231 fixed to the side ends of the clamping arms 22. The two racks 231 are symmetrically arranged. Above the sliding seat 21, a gear 232 meshing between the two racks 231 is rotatably connected.

[0027] Certainly, in order to drive the movement of the two racks 231, a pushing cylinder 233 is fixed to the upper end of the sliding seat 21 in the present utility model. The shaft end of the pushing cylinder 233 is fixed to one of the racks 231. That is, when the central positioning of the component is required, the pushing cylinder 233 pushes one rack 231 to move. With the cooperation of the gear 232, the other rack 231 moves synchronously, so as to ensure the synchronous movement of the two clamping arms 22 to achieve the central clamping of the component.

[0028] In summary, in the present utility model, the two clamping arms 22 are used to synchronously clamp the component on the support block 12, which can realize the positioning of the central position of the component. In addition, by aligning the centerlines of the two clamping arms 22 with the centerline of the hydraulic rod, it can be ensured that during the subsequent pressure test, the hydraulic rod abuts against the central position of the component, thereby ensuring the accuracy and stability of the component test. The support block 12 adopts a sliding structure design, and can also be applicable to the size change of the component within a certain range. The overall structure design is simple and reasonable, improving the convenience of component positioning.

[0029] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A positioning tool for concrete component strength testing, comprising a support unit (1) and a positioning unit (2) arranged on the support unit (1), characterized in that: The positioning unit (2) is slidably connected to the support unit (1), and a driving member (3) for driving the positioning unit (2) to move is installed on the support unit (1); The positioning unit (2) comprises a slide seat (21) sliding on the support unit (1), two clamping arms (22) being slidably connected above the slide seat (21), and a driving component (23) for controlling the synchronous movement of the two clamping arms (22) being arranged above the slide seat (21).

2. A positioning tool for concrete component strength testing according to claim 1, characterized in that: The support unit (1) comprises a base plate (11), two support blocks (12) are arranged at the upper end of the base plate (11), and the slide seat (21) slides above the base plate (11) via a sliding structure.

3. A positioning tool for concrete component strength testing according to claim 2, characterized in that: A dovetail groove (13) is provided at the upper end of the base plate (11), and a dovetail block sliding in the dovetail groove (13) is fixed to the bottom of the support block (12), wherein a locking bolt (14) is threadedly connected to the end surface of the support block (12), and the bottom end of the locking bolt (14) contacts the bottom surface of the dovetail groove (13).

4. A positioning tool for concrete component strength testing according to claim 2, characterized in that: The driving member (3) is a cylinder fixed on the base plate (11), a sensing switch (15) is fixed above the base plate (11), and a sensing block (16) adapted to the sensing switch (15) is fixed on the side end of the slide seat (21).

5. The positioning tool for concrete component strength testing according to claim 1, characterized in that: The driving assembly (23) comprises a rack (231) fixed to the side end of the clamping arm (22), the two racks (231) being symmetrically arranged, and a gear (232) meshing between the two racks (231) is rotatably connected above the slide seat (21).

6. A positioning tool for concrete component strength testing according to claim 5, characterized in that: A pushing cylinder (233) is also fixed on the upper end of the slide seat (21), and the shaft end of the pushing cylinder (233) is fixed to one of the racks (231).

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