Stretching clamp for detecting performance of steel plate in thickness direction

Abstract

The utility model relates to the technical field of steel plate performance detection, in particular to a tensile fixture for detecting the performance of a steel plate in the thickness direction, which comprises a base and a tensile mechanism mounted on the base and used for tensile detection, and a clamping component used for fixing a sample is arranged on one side of the tensile mechanism. The stretching mechanism comprises a supporting frame, a hydraulic lifting rod and mounting seats, the supporting frame is fixed to one side of the base, the mounting seats are fixed to the lower portion of the supporting frame through the telescopic ends of the hydraulic lifting rod, the clamping component comprises a clamping frame, a hydraulic push rod, an abutting frame and four sets of hydraulic telescopic rods, and the four sets of hydraulic telescopic rods are symmetrically mounted on the two sides of the two sets of mounting seats correspondingly; the clamping frame is installed on the inner side of the installation base through the telescopic end of the hydraulic telescopic rod. According to the utility model, a sample to be detected can be effectively fixed through the clamping component, and effective reinforcement can be carried out through matched use of the pressing frame and the fixing pin, so that the sample is prevented from falling off due to the fact that the sample is not firmly fixed during detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of tensile clamps for steel plate thickness direction performance detection, in particular to a kind of tensile clamps for steel plate thickness direction performance detection, belong to steel plate performance detection technical field. BACKGROUND

[0002] The construction of traffic field in China develops rapidly, especially steel structure bridge is widely applied with the advantages of light weight, large span capacity, etc., the steel plate raw material executes standard GB / T 714-2015 "structural steel for bridge", GB / T 5313-2023 "thickness direction performance" clearly requires steel plate thickness direction performance, so thickness direction performance is a very important technical index in steel structure bridge, and it is particularly important to reasonably and conveniently complete this detection, the existing steel plate thickness direction performance detection mode is difficult to fix sample, the clamp needs to be optimized, so as to facilitate the fixation sample to detect performance;

[0003] Through retrieval, the patent with Chinese patent application number 201720554317.9 discloses a kind of clamps for tensile detection, including clamp main body, tensile traction device, clamping device, sample to be detected, upper electromagnet, control panel, lower electromagnet, the sample to be detected is set in the middle of clamp main body, 2 the clamping device is respectively set in the left side and right side of sample to be detected, the upper electromagnet is set on the surface of clamping device top, the lower electromagnet is set on the surface of clamping device bottom.

[0004] The tensile detection clamp in the above patent has the following disadvantages: the device does not set effective reinforcing device during use, so that the sample cannot be fixed firmly during clamping and fixing, and the sample may slip during detection, affecting normal detection.

[0005] Therefore, it is urgent to improve the tensile clamp for steel plate thickness direction performance detection to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of tensile clamp for steel plate thickness direction performance detection, the sample to be detected can be effectively fixed by clamping member, and the sample can be effectively reinforced by the cooperation of abutting and pressing frame and fixed pin, so that the sample is not firmly fixed during detection, and the sample is not dropped, affecting normal detection.

[0007] In order to achieve the above purpose, the main technical scheme of the utility model comprises: a base and a tensile mechanism installed on the base for tensile detection, the tensile mechanism is provided with a clamping member for fixing the sample on one side.

[0008] The stretching mechanism comprises a support frame, a hydraulic lifting rod and a mounting seat, the support frame is fixed to one side of the base, and the mounting seat is fixed to the lower side of the support frame through the telescopic end of the hydraulic lifting rod.

[0009] The clamping member comprises a clamping frame, a hydraulic push rod, a pressing frame and four groups of hydraulic telescopic rods, the four groups of hydraulic telescopic rods are symmetrically installed on the two sides of the two groups of mounting seats respectively, the clamping frame is installed on the inner side of the mounting seat through the telescopic end of the hydraulic telescopic rod, the clamping frame is provided with a fixing groove, a sample fixing head is arranged on one side of the fixing groove, the shape of the tail end of the sample fixing head is matched with the fixing groove of the clamping frame, and the sample fixing head and the clamping frame are symmetrically provided with a hole.

[0010] Preferably, a plurality of support legs are installed on the side, away from the support frame, of the base, and a foot pad is installed at the end of each support leg.

[0011] Preferably, a hole is formed in one side of the clamping frame, and the position and size of the hole are matched with the telescopic end of the hydraulic push rod.

[0012] Preferably, a limiting hole is formed in one side of the clamping frame, and a U-shaped limiting pin is arranged on one side of the limiting hole.

[0013] Preferably, a protection frame is installed on the side, close to the support frame, of the base, a hinge is arranged on one side of the protection frame, and a protection door is hingedly fixed to the protection frame through the hinge, and the protection door is provided with an observation window.

[0014] Preferably, a connecting frame is arranged on one side of the protection frame, a clamping pin is rotatably installed on the connecting frame through a fixing shaft, a clamping block is arranged on one side of the protection door, and the clamping block is provided with a clamping groove matched with the clamping pin.

[0015] Preferably, a camera is installed on one side of the support frame, and a fill light is arranged on the two sides of the camera.

[0016] Preferably, a control panel is arranged on one side of the protection door, and a protective film is attached to the outer wall of the control panel.

[0017] The utility model at least has the following beneficial effects:

[0018] 1. The sample fixing head can conveniently fix the sample to be detected, and can solve the problem that the sample cannot be effectively fixed due to its small size, the clamping frame can be clamped and fixed to the sample fixing head through the hydraulic telescopic rod, so that the sample is clamped, and after the clamping and fixing are completed, the pressing frame moves through the hydraulic push rod The insertion of the sample fixing head against the fixing pin can further reinforce the clamping of the sample fixing head, so that the tensile test can be facilitated, and the sample falling off due to loose clamping during the test can be avoided.

[0019] 2、After the two adjacent groups of clamping frames are combined by moving, the limiting holes of the two groups of clamping frames are parallel to each other, and the limiting fixing of the two groups of clamping frames can be completed by inserting the limiting pins at two ends of the U-shaped limiting pin into the limiting holes of the two groups of clamping frames, so that the separation of the clamping frames during the test can be avoided to affect the clamping of the sample. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the application without imposing undue limitation thereon. In the drawings:

[0021] Figure 1 It is a whole three-dimensional structure diagram of the utility model;

[0022] Figure 2 It is a protective part structure diagram of the utility model;

[0023] Figure 3 It is a recording part structure diagram of the utility model;

[0024] Figure 4 It is a clamping part structure diagram of the utility model.

[0025] In the drawings, 1, base; 2, support leg; 3, foot pad; 4, protection door; 5, observation window; 6, hinge; 7, protection frame; 8, support frame; 9, hydraulic lifting rod; 10, mounting seat; 11, connecting frame; 12, fixed shaft; 13, locking pin; 14, clamping block; 15, camera; 16, light supplementing lamp; 17, hydraulic telescopic rod; 18, clamping frame; 19, sample fixing head; 20, limiting pin; 21, fixing pin; 22, hydraulic push rod; 23, pressing frame; 24, control panel. DETAILED DESCRIPTION

[0026] The embodiments of the application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0027] As Figures 1-4 shown, a tensile clamp for detecting the performance of a steel plate in the thickness direction, comprising a base 1 and a tensile mechanism mounted on the base 1 for tensile test, and a clamping member for fixing a sample is arranged on one side of the tensile mechanism.

[0028] The stretching mechanism comprises a support frame 8, a hydraulic lifting rod 9 and a mounting seat 10, the support frame 8 is fixed to one side of the base 1, and the mounting seat 10 is fixed to the lower side of the support frame 8 through the telescopic end of the hydraulic lifting rod 9;

[0029] In use, the support frame 8 is fixed to the top outer wall of the base 1 through bolts, the hydraulic lifting rod 9 is fixed to the top outer wall of the support frame 8 through bolts, the telescopic end at the bottom of the hydraulic lifting rod 9 is slidably arranged through the support frame 8, and the mounting seat 10 is provided with two groups and is symmetrically arranged at the end of the hydraulic lifting rod 9 and the top of the base 1 respectively. The sample can be fixed through the clamping member, after the fixing is completed, the hydraulic lifting rod 9 is controlled to start to drive one group of mounting seats 10 to rise, the sample after being fixed is stretched through the control of one group of mounting seats 10 rising, the sample is taken out after it is broken, and the thickness direction performance detection of the steel plate is accurately, quickly and efficiently completed through the measurement of the cross-section shrinkage rate.

[0030] The clamping member comprises a clamping frame 18, a hydraulic push rod 22, a pressing frame 23 and four groups of hydraulic telescopic rods 17, the four groups of hydraulic telescopic rods 17 are symmetrically arranged on the two sides of the two groups of mounting seats 10, the clamping frame 18 is arranged on the inner side of the mounting seat 10 through the telescopic end of the hydraulic telescopic rod 17, the clamping frame 18 is provided with a fixing groove, one side of the fixing groove is provided with a sample fixing head 19, the tail end of the sample fixing head 19 is matched with the fixing groove arranged in the clamping frame 18, the sample fixing head 19 and the clamping frame 18 are symmetrically provided with a hole, the hole is provided with a fixing pin 21, and the pressing frame 23 is arranged in the clamping frame 18 through the telescopic end of the hydraulic push rod 22;

[0031] In use, the sample fixing head 19 is provided with a threaded hole at the end, and two groups of sample fixing heads 19 can be fixed through the clamping frames 18 installed on the upper and lower symmetric two groups of mounting seats 10. The sample fixing head 19 is simple to process, and can be processed by combining a common welding torch chuck with a round steel and then welding and turning the tail end. The production is convenient and low in cost, and can be easily replaced after damage, thereby reducing the cost of use. After sampling from the thickness direction of the steel plate, the sample is processed into a dumbbell shape by turning and threaded at both ends, and then the threaded ends are screwed into the threaded holes at the end of the sample fixing head 19, thereby completing the connection of the sample. After connection, two groups of sample fixing heads 19 are fixed through two groups of mounting seats 10, and then stretching detection can be performed. The sample fixing head 19 solves the problem that the sample cannot be directly fixed due to insufficient length and size. The symmetric two groups of clamping frames 18 are combined by moving towards each other through the hydraulic telescopic rod 17, and then the sample fixing head 19 can be clamped and fixed. After fixing, the hydraulic push rod 22 controls the movement of the pressing frame 23 to contact the tail end of the sample fixing head 19, thereby pressing it. This avoids the sample fixing head 19 from shaking or moving during detection. After the two groups of clamping frames 18 are combined, the clamping frame 18 is aligned with the opening of the sample fixing head 19, and then the fixed pin 21 is inserted, thereby completing the limiting between the clamping frame 18 and the sample fixing head 19. This further increases the firmness of the fixing and avoids accidental disconnection of the combined clamping frame 18.

[0032] The clamping frame 18 is provided with an opening on one side, and the position and size of the opening are matched with the telescopic end of the hydraulic push rod 22. The clamping frame 18 is provided with a limiting hole on one side, and the limiting hole is provided with a U-shaped limiting pin 20 on one side. The base 1 is installed with a plurality of support legs 2 away from the support frame 8 on one side, and the support leg 2 is installed with a foot pad 3 at the end.

[0033] In use, the foot pad 3 is made of rubber material, the support leg 2 is installed at the bottom of the base 1, and the device can be supported through the cooperation of the foot pad 3 and the support leg 2, thereby keeping stable. The rubber material of the foot pad 3 can increase the anti-skid property and avoid unnecessary sliding displacement. The telescopic end of the hydraulic push rod 22 can slide into the opening of the clamping frame 18, thereby facilitating the telescopic movement and ensuring the normal work of the hydraulic push rod 22 while limiting the movement track. After the adjacent two groups of clamping frames 18 are combined, the limiting holes of the two groups of clamping frames 18 are parallel to each other. The limiting of the two groups of clamping frames 18 can be completed by inserting the limiting pin 20 into the limiting holes of the two groups of clamping frames 18, thereby avoiding the separation of the clamping frames 18 during detection.

[0034] Further, as Figure 1 and Figure 2As shown, the base 1 is installed with a protective frame 7 near the side of the support frame 8, the protective frame 7 is provided with a hinge 6 on one side, the protective frame 7 is hingedly fixed with a protective door 4 through the hinge 6, the protective door 4 is provided with an observation window 5, the protective frame 7 is provided with a connecting frame 11 on one side, the connecting frame 11 is rotatably installed with a locking pin 13 through a fixed shaft 12, the protective door 4 is provided with a clamping block 14 on one side, the clamping block 14 is provided with a clamping groove matched with the locking pin 13, the observation window 5 is made of transparent material, the hinge 6 is provided with two groups, the protective door 4 is installed on the protective frame 7 through the hinge 6, the protective frame 7 can wrap the stretching mechanism and the clamping member, the protective door 4 is opened to facilitate the installation of the sample, and the protective door 4 is closed during detection, the protective door 4 and the protective frame 7 are matched to wrap and protect during detection, so that the flying debris can be avoided when the sample is broken, the transparent observation window 5 can be used to observe the detection condition, after the protective door 4 is closed, the locking pin 13 can be rotated on the fixed shaft 12, so that the locking pin 13 is clamped into the clamping groove of the clamping block 14 to limit and fix the protective door 4, so that the protective door 4 is not accidentally opened during detection, and a certain damping is arranged between the locking pin 13 and the fixed shaft 12, so that the locking pin 13 is not rotated when not operated.

[0035] Further, as shown in Figure 1 and Figure 2 the side of the support frame 8 is installed with a camera 15, the camera 15 is provided with a light supplement lamp 16 on both sides, the side of the protective door 4 is provided with a control panel 24, the outer wall of the control panel 24 is attached with a protective film, the position of the camera 15 is matched with the sample fixing head 19, the sample can be continuously shot during detection through the camera 15, the detection process is recorded through shooting, which is convenient for subsequent playback and viewing, the local picture can be enlarged and viewed during detection, which is convenient for observing the sample, the light supplement lamp 16 can supplement light to facilitate the shooting of the camera 15, the control panel 24 is connected with each component of the device through a circuit, each component of the device can be conveniently controlled through the control panel 24, and the picture shot by the camera 15 can be observed and recorded.

[0036] As shown in Figures 1-4As shown, the principle of the tensile clamp for detecting the thickness direction performance of the steel plate provided by the embodiment is as follows: the dumbbell-shaped sample with the threaded ends is installed on the sample fixing head 19, after the protection door 4 is opened, the sample fixing head 19 connected with the two ends of the sample can be fixed on the upper and lower two groups of mounting seats 10 respectively, the sample fixing head 19 can be clamped and fixed by controlling the movement of the clamping frame 18 through the hydraulic telescopic rod 17, after the fixing is completed, the limiting pin 21 is installed for limiting and fixing, the sample fixing head 19 is pressed to avoid displacement by controlling the movement of the pressing frame 23 through the hydraulic push rod 22, and the limiting pin 20 is installed on the adjacent two groups of clamping frames 18 for further reinforcement, after the sample is fixed, the upper mounting seat 10 is moved upward by the hydraulic lifting rod 9 to stretch the fixed sample, the sample is broken during continuous stretching, the broken sample is taken off for analysis, and the performance detection in the thickness direction can be completed, during detection, the protection door 4 is closed, the locking pin 13 is locked in the locking block 14 to limit the protection door 4, so as to avoid accidental opening, the detection process can be photographed through the camera 15, so as to facilitate subsequent playback and observation, and the device can be conveniently and quickly controlled through the control panel 24.

[0037] As used in the specification and claims, certain terminology is used to refer to certain components. One of skill in the art will understand that different manufacturers can refer to the same component using different names. The specification and claims do not distinguish components based on the names used to refer to them but rather on the functional differences between the components. As used throughout the specification and claims, "comprising" is a transitive verb, thus it is intended to be interpreted as "comprising, but not limited to," As used throughout the specification and claims, "substantially" refers to an acceptable range of error for the particular value as determined by one of ordinary skill in the art, when the particular value in question is not critical for full functioning of the technology.

[0038] It should be noted that the terms "comprising", "including", and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or product that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process or product. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process or product including the element.

[0039] The above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application conceived herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. A tensile jig for detecting thickness direction performance of a steel sheet, comprising a base (1) and a tensile mechanism installed to the base (1) for tensile detection, characterized in that: The stretching mechanism is provided with a clamping member for fixing the sample on one side; The stretching mechanism comprises a support frame (8), a hydraulic lifting rod (9) and a mounting seat (10), the support frame (8) is fixed on one side of the base (1), and the mounting seat (10) is fixed below the support frame (8) through the telescopic end of the hydraulic lifting rod (9); The clamping member comprises a clamping frame (18), a hydraulic push rod (22), a pressing frame (23) and four groups of hydraulic telescopic rods (17), the four groups of hydraulic telescopic rods (17) are symmetrically installed on the two sides of the two groups of mounting seats (10) respectively, the clamping frame (18) is installed on the inner side of the mounting seat (10) through the telescopic end of the hydraulic telescopic rod (17), the clamping frame (18) is provided with a fixing groove, a sample fixing head (19) is arranged on one side of the fixing groove, the shape of the tail end of the sample fixing head (19) is matched with the fixing groove of the clamping frame (18), and the sample fixing head (19) and the clamping frame (18) are symmetrically provided with an opening, and a fixing pin (21) is installed at the opening, and the pressing frame (23) is installed in the clamping frame (18) through the telescopic end of the hydraulic push rod (22).

2. The tensile jig for detecting thickness direction performance of a steel sheet according to claim 1, characterized by: A plurality of support legs (2) are installed on the side, away from the support frame (8), of the base (1), and a foot pad (3) is installed at the end of each support leg (2).

3. The tensile jig for detecting thickness direction performance of a steel sheet according to claim 1, characterized by: A hole is formed in one side of the clamping frame (18), and the position and size of the hole are matched with the telescopic end of the hydraulic push rod (22).

4. The tensile jig for detecting thickness direction performance of a steel sheet according to claim 1, characterized by: A limiting hole is formed in one side of the clamping frame (18), and a U-shaped limiting pin (20) is arranged on one side of the limiting hole.

5. The tensile grip for detecting thickness direction performance of a steel sheet according to claim 1, characterized by: A protection frame (7) is installed on the side, close to the support frame (8), of the base (1), a hinge (6) is arranged on one side of the protection frame (7), and a protection door (4) is hingedly fixed to the protection frame (7) through the hinge (6), and the protection door (4) is provided with an observation window (5).

6. The tensile jig for detecting thickness direction performance of a steel sheet according to claim 5, characterized by: A connecting frame (11) is arranged on one side of the protection frame (7), a catch pin (13) is rotatably installed on the connecting frame (11) through a fixing shaft (12), a catch block (14) is arranged on one side of the protection door (4), and the catch block (14) is provided with a catch groove matched with the catch pin (13).

7. The tensile grip for thickness direction performance detection of a steel sheet according to claim 1, characterized by: A camera (15) is installed on one side of the support frame (8), and a fill light (16) is arranged on the two sides of the camera (15).

8. The tensile jig for detecting thickness direction performance of a steel sheet according to claim 5, characterized by: A control panel (24) is arranged on one side of the protection door (4), and a protective film is attached to the outer wall of the control panel (24).

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