CN217304666U - Steel tensile strength contrast check out test set for building - Google Patents

Abstract

The utility model discloses a contrast detection device for tensile strength of steel for building, which belongs to the technical field of steel detection, and comprises a frame, wherein a workbench is arranged on the frame, a clamping mechanism is arranged on the workbench, two sides of the workbench are provided with symmetrical movable seats, a driving mechanism for driving the two movable seats is arranged on the frame, the top of each movable seat is connected with a mounting plate in a sliding manner, the top of each mounting plate is provided with a fixed frame, a clamping cylinder is arranged on each fixed frame, the end part of a piston rod of the clamping cylinder is connected with a fastening plate, one side of the top of each movable seat is provided with a tension sensor, the tension sensor is connected with the mounting plate, and the clamping mechanism comprises two fixed clamping plates fixed at the top of the workbench and two movable clamping plates right opposite to the fixed clamping plates; this detect machine can carry out the snap simultaneously to the both ends of same reinforcing bar sample, reachs two sets of data, and the contrast detection can be accomplished in an experiment, simplifies experimental flow, has improved the efficiency when the contrast is detected greatly.

Description

A kind of construction steel tensile strength comparison testing equipment

technical field

The utility model relates to the technical field of steel testing, in particular to a comparative testing device for tensile strength of steel for construction.

Background technique

In order to ensure the processing quality and production safety, the tensile strength testing of steel is a must-check indicator for the quality control of each engineering quality supervision station, and the tensile strength testing machine is one of the equipment for testing steel.

At this stage, in the tensile strength test of steel bars, the testing machine can only break one steel bar sample once. When the results need to be compared, another steel bar needs to be broken again. In this process, two steel bars need to be used. For steel bars, the inspection machine needs to work twice, the operation is complicated, the inspection takes a long time, and needs to be improved.

Utility model content

The utility model provides a comparative testing device for tensile strength of steel for construction, which solves the problem that when the tensile strength test of steel bars is performed at the present stage, the testing machine can only perform one break of a steel bar sample, and when a comparison result is required, Another steel bar needs to be broken again. In this process, two steel bars need to be used, the detection machine needs to work twice, the operation is complicated, and the detection takes a long time, which needs to be improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a construction steel tensile strength comparison testing equipment, including a frame, the frame is provided with a workbench, and the workbench is provided with a clamping mechanism , the two sides of the workbench are provided with symmetrical movable seats, a driving mechanism for driving the two movable seats is installed on the frame, the tops of the movable seats are all slidably connected with a mounting plate, and the top of the mounting plate is A fixing frame is provided, a clamping cylinder is installed on the fixing frame, a fastening plate is connected to the end of the piston rod of the clamping cylinder, and a tension sensor is installed on one side of the top of the movable seat, and the tension sensor is connected to the Connect with the mounting plate.

With the above solution, the steel bar can be fixed from the middle through the clamping mechanism arranged on the workbench, so that in the tensile test, the steel bars can be pulled from both ends respectively, and two sets of test data can be obtained at the same time. In comparison, only one test is required for the same steel bar sample, and two sets of data can be obtained at the same time, which simplifies the test process and improves the efficiency of comparative testing.

Preferably, the clamping mechanism includes two fixed splints fixed on the top of the workbench and two movable splints facing the fixed splints, the top of the workbench is provided with a movable plate, and the movable plate is slidably connected to the workbench. On the table, two connecting rods are connected to the side of the movable plate, the connecting rods are respectively connected with the corresponding movable splint, a clamping motor is installed on the frame, and the output shaft of the clamping motor is connected with a thread rod, and the movable plate is screwed on the threaded rod.

With the above solution, when the clamping mechanism clamps and fixes the steel bar, the threaded rod is driven to rotate by the clamping motor, the movable plate on the threaded rod moves to one side, and the movable plate simultaneously drives the two movable splints to the fixed splint direction through the connecting rod. Move until the steel bar is clamped and fixed, which is suitable for the fixation of steel bars of different specifications.

Preferably, the top side of the worktable is provided with a pre-compression assembly facing the two movable splints, the pre-compression assembly includes a fixed block fixed on one side of the worktable, and the fixed block is slidably connected There is a movable rod, the two ends of the movable rod are respectively connected with a pressing plate and a pulling plate, the pressing plate is opposite to the two movable splints, and the movable rod is sleeved with a connection between the pressing plate and the fixing block between the compression springs.

Using the above scheme, when the tensile test is performed on the steel bar sample, the movable rod drives the compression plate to move to one side by pulling the tension plate, and then the steel bar sample is placed between the compression plate and the movable splint. At this time, the steel bar is working Pre-fixed on the stage, no manual intervention is required during the subsequent centering adjustment and clamping and fixing of the steel bar, and the steel bar sample can remain stable during the adjustment activity.

Preferably, the driving mechanism includes a bidirectional screw rod rotatably connected to a frame, a drive motor for driving the bidirectional screw rod to rotate is installed on the frame, and the two movable seats are both threadedly connected to the bidirectional screw rod superior.

Using the above scheme, during the tensile test, the two ends of the steel bar sample are fixed by two fastening plates, and then the two-way screw is driven by the driving motor to rotate, and the two movable seats on the two-way screw are far away from each other. At this time, the steel bar is slowly Pull and break, and detect the tensile force in the process of breaking through the tensile force sensor, so as to realize the detection of tensile strength.

Preferably, the driving mechanism further comprises a guide rod fixed on the frame, one side of the movable seat is connected with a connecting block, and both of the connecting blocks are slidably connected to the guide rod.

With the above solution, when the two movable seats are driven away from each other to break the steel bar, the connecting blocks on one side of the movable seat slide on the guide rod, and the movable seat is guided and supported by the connecting block and the guide rod, so as to improve the performance of the movable seat. The overall stability of the entire testing equipment during testing.

Preferably, positioning plates are fixed on one side of the top of the mounting plate, and the two positioning plates are symmetrically arranged on both sides of the workbench.

Using the above scheme, a positioning plate is set on the top of the installation plate. After the steel bar is pre-fixed on the workbench, it is driven by a driving motor so that the two positioning plates on the installation plate clamp the steel bar sample from both ends, and the steel bar sample is centered on the back two. The positioning plate is loosened, and then the steel bar sample is fixed on the workbench. At this time, the two ends of the steel bar sample can be fixed by pressing the fastening plate, so that the two ends of the steel bar sample can be pulled off at the same time for the test.

The beneficial effects of the present utility model:

The device can fix the steel bar in the middle by setting the movable splint and the fixed splint on the worktable, and the splint is arranged in two groups to improve the fixing effect of the steel bar. Two sets of test data are obtained at the same time for comparison. Only one test of the same steel bar sample can be obtained at the same time, two sets of data can be obtained at the same time, which simplifies the test process and improves the efficiency of comparative testing;

By setting a pressing plate on one side of the worktable, the device can pre-fix the steel bar sample, which is convenient for the subsequent clamping of the steel bar by the movable splint. Manual intervention adjustment to improve convenience.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the other side direction view of the utility model as a whole;

3 is a schematic structural diagram of a clamping mechanism and a pre-compression assembly of the present invention;

4 is a schematic diagram of the overall structure of the movable seat of the present invention.

In the figure: 1. frame; 2. worktable; 3. clamping mechanism; 31. fixed splint; 32, movable plate; 33, connecting rod; 34, movable splint; 35, clamping motor; 36, threaded rod; 4. Pre-compression assembly; 41, fixed block; 42, movable rod; 43, compression plate; 44, pull plate; 45, compression spring; 5, movable seat; 6, driving mechanism; 61, two-way screw; 62, drive motor; 63, guide rod; 7, mounting plate; 8, fixing frame; 9, clamping cylinder; 10, fastening plate; 11, tension sensor; 12, positioning plate; 13, connecting block.

Detailed ways

Example

Referring to Figures 1-4, the present utility model provides a comparative testing equipment for tensile strength of steel for construction, comprising a frame 1, a workbench 2 is arranged on the frame 1, a clamping mechanism 3 is arranged on the workbench 2, and the workbench Two sides of 2 are provided with symmetrical movable seats 5, and a drive mechanism 6 for driving two movable seats 5 is installed on the frame 1. The top of the movable seats 5 is slidably connected with a mounting plate 7, and the top of the mounting plate 7 is provided with a fixed Frame 8, a clamping cylinder 9 is installed on the fixed frame 8, a fastening plate 10 is connected to the end of the piston rod of the clamping cylinder 9, a tension sensor 11 is installed on the top side of the movable seat 5, and the tension sensor 11 is connected with the mounting plate. 7 Connections.

Through the clamping mechanism 3 provided on the workbench 2, the steel bar can be fixed in the middle, so that in the tensile test, the steel bar can be pulled from both ends, and two sets of test data can be obtained for comparison. Only one test is required for the same steel bar sample, and two sets of data can be obtained at the same time, which simplifies the test process and improves the efficiency of comparative testing.

The clamping mechanism 3 includes two fixed splints 31 fixed on the top of the workbench 2 and two movable splints 34 facing the fixed splint 31. The top of the workbench 2 is provided with a movable plate 32, and the movable plate 32 is slidably connected to the workbench. 2, two connecting rods 33 are connected to the side of the movable plate 32, and the connecting rods 33 are respectively connected with the corresponding movable clamping plates 34. A clamping motor 35 is installed on the frame 1, and the output shaft of the clamping motor 35 is connected with a threaded rod. 36, and the movable plate 32 is threaded on the threaded rod 36.

In this embodiment, when the clamping mechanism 3 clamps and fixes the steel bar, the clamping motor 35 drives the threaded rod 36 to rotate, the movable plate 32 on the threaded rod 36 moves to one side, and the movable plate 32 is simultaneously driven by the connecting rod 33 The two movable splints 34 move in the direction of the fixed splint 31 until the steel bars are clamped and fixed, which is suitable for the fixation of steel bars of different specifications.

The top side of the worktable 2 is provided with a pre-compression assembly 4 that is opposite to the two movable splints 34. The pre-compression assembly 4 includes a fixed block 41 fixed on one side of the worktable 2. The fixed block 41 is slidably connected with a movable plate. The rod 42, the two ends of the movable rod 42 are respectively connected with a pressing plate 43 and a pulling plate 44, the pressing plate 43 is opposite to the two movable clamping plates 34, and the movable rod 42 is sleeved with a connection on the pressing plate 43 and the fixed block Compression spring 45 between 41.

In this embodiment, when the tensile test is performed on the steel bar sample, the movable rod 42 drives the pressing plate 43 to move to one side by pulling the tension plate 44, and then the steel bar sample is placed between the pressing plate 43 and the movable splint 34 , at this time, the steel bars are pre-fixed on the workbench 2, and no manual intervention is required during the subsequent centering adjustment and clamping and fixing of the steel bars, and the steel bar samples can remain stable during the adjustment activities.

The drive mechanism 6 includes a two-way screw 61 rotatably connected to the frame 1, a drive motor 62 for driving the two-way screw 61 to rotate is installed on the frame 1, and the two movable seats 5 are threadedly connected to the two-way screw 61. .

In this embodiment, during the tensile test, the two ends of the steel bar sample are fixed by two fastening plates 10, and then the driving motor 62 drives the two-way screw 61 to rotate, and the two movable seats 5 on the two-way screw 61 are far away from each other, At this time, the steel bar is slowly broken, and the tensile force during the breaking process is detected by the tensile force sensor 11, so as to realize the detection operation of the tensile strength.

The driving mechanism 6 also includes a guide rod 63 fixed on the frame 1 , one side of the movable base 5 is connected with the connecting blocks 13 , and the two connecting blocks 13 are both slidably connected to the guide rod 63 .

In this embodiment, when the two movable seats 5 are driven away from each other to pull and break the steel bars, the connecting blocks 13 on one side of the movable seats 5 slide on the guide rods 63 , and the connecting blocks 13 cooperate with the guide rods 63 to prevent the movable seat 5 from sliding on the guide rod 63 . The seat 5 guides and supports to improve the overall stability of the entire testing equipment during testing.

Positioning plates 12 are fixed on both sides of the top of the mounting plate 7 , and the two positioning plates 12 are symmetrically arranged on both sides of the workbench 2 .

In this embodiment, a positioning plate 12 is set on the top of the mounting plate 7. After the steel bars are pre-fixed on the workbench 2, they are driven by the driving motor 62, so that the two positioning plates 12 on the mounting plate 7 clamp the steel bar samples from both ends. , after centering the steel bar sample, the two positioning plates 12 are loosened, and then the steel bar sample is fixed on the workbench 2. At this time, the two ends of the steel bar sample can be fixed by pressing the tightening plate 10, so that the two ends of the steel bar sample can be fixed at the same time. Pull off to test.

Working principle: When the detector is in use, first pull the pull plate 44 to make the movable rod 42 drive the compression plate 43 to move to one side, and then place the steel bar sample between the compression plate 43 and the movable splint 34, due to the compression spring 45 The force on the pressing plate 43 makes the steel bar pre-fixed on the table 2, and then the clamping motor 35 drives the threaded rod 36 to rotate, the movable plate 32 on the threaded rod 36 moves to one side, and the movable plate 32 passes through the connecting rod 33. At the same time, the two movable splints 34 are driven to move in the direction of the fixed splint 31 until the steel bars are clamped and fixed. At this time, the driving motor 62 drives the two-way screw rod 61 to rotate, and the two movable seats 5 on the two-way screw rod 61 are close to each other, so that the two The ends move to between the fastening plate 10 and the mounting plate 7 respectively. At this time, the clamping mechanism 3 is slightly loosened. The driving motor 62 works again to make the two positioning plates 12 clamp the steel bars in the center. At this time, the clamping mechanism 3 is fixed again. The steel bar is driven by the clamping cylinder 9 to drive the fastening plate 10 to press down and clamp both ends of the steel bar, and then the driving motor 62 drives the two movable seats 5 to move away from each other. The tensile force during the breaking process is realized, and the tensile strength detection operation is realized.

Claims (6)

1. A contrast detection device for tensile strength of steel materials for construction is characterized by comprising a frame (1), a workbench (2) is arranged on the frame (1), a clamping mechanism (3) is arranged on the workbench (2), two sides of the workbench (2) are provided with symmetrical movable seats (5), the machine frame (1) is provided with a driving mechanism (6) for driving the two movable seats (5), the top of the movable seat (5) is connected with a mounting plate (7) in a sliding way, the top of the mounting plate (7) is provided with a fixed frame (8), a clamping cylinder (9) is arranged on the fixed frame (8), the end part of a piston rod of the clamping cylinder (9) is connected with a fastening plate (10), a tension sensor (11) is installed on one side of the top of the movable seat (5), and the tension sensor (11) is connected with the mounting plate (7).

2. The steel tensile strength contrast check out test set for building of claim 1, characterized in that, fixture (3) are including fixing two fixed splint (31) at workstation (2) top and with two movable splint (34) just right with fixed splint (31), the top of workstation (2) is equipped with fly leaf (32), fly leaf (32) sliding connection is on workstation (2), the side of fly leaf (32) is connected with two connecting rods (33), connecting rod (33) are connected with corresponding movable splint (34) respectively, install centre gripping motor (35) on frame (1), the output shaft of centre gripping motor (35) has threaded rod (36), just fly leaf (32) threaded connection is on threaded rod (36).

3. The building steel tensile strength contrast detection device according to claim 2, wherein a pre-compression assembly (4) right opposite to the two movable clamping plates (34) is arranged on one side of the top of the workbench (2), the pre-compression assembly (4) comprises a fixed block (41) fixed on one side of the workbench (2), a movable rod (42) is connected onto the fixed block (41) in a sliding manner, two ends of the movable rod (42) are respectively connected with a compression plate (43) and a pull plate (44), the compression plate (43) is right opposite to the two movable clamping plates (34), and a compression spring (45) connected between the compression plate (43) and the fixed block (41) is sleeved on the movable rod (42).

4. The contrast detection equipment for the tensile strength of the steel materials for the building as claimed in claim 1, wherein the driving mechanism (6) comprises a bidirectional screw rod (61) rotatably connected to the frame (1), a driving motor (62) for driving the bidirectional screw rod (61) to rotate is installed on the frame (1), and both of the two movable seats (5) are in threaded connection with the bidirectional screw rod (61).

5. The contrast detection equipment for the tensile strength of the building steel as claimed in claim 4, wherein the driving mechanism (6) further comprises a guide rod (63) fixed on the frame (1), one side of the movable seat (5) is connected with a connecting block (13), and the two connecting blocks (13) are slidably connected on the guide rod (63).

6. The contrast detection equipment for the tensile strength of the steel materials for the buildings according to claim 1, characterized in that positioning plates (12) are fixed on one side of the top of the mounting plate (7), and the two positioning plates (12) are symmetrically arranged on two sides of the workbench (2).

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