CN219870673U

CN219870673U - Reinforcing bar sample clamping device

Info

Publication number: CN219870673U
Application number: CN202320779464.1U
Authority: CN
Inventors: 吴宗林; 李超; 刘小龙
Original assignee: Anhui Junteng Engineering Test Detection Co ltd
Current assignee: Anhui Junteng Engineering Test Detection Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-10-20
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses a steel bar sample clamping device, in particular to the technical field of steel bar processing equipment, which comprises a seat plate, wherein the upper surface of the seat plate is provided with a chute extending along the long axis of the seat plate, two groups of support mechanisms sliding back and forth along the chute are arranged above the seat plate, the top ends of the support mechanisms are respectively provided with an angle-adjustable clamping seat, the clamping seats clamp and support steel bars, and one end, away from each other, of each clamping seat is provided with a fixing assembly for limiting the steel bars. According to the utility model, in the process of a steel bar bending test, the steel bar test article can be effectively fixed on the clamping seat, so that the phenomena of sliding, tilting and bouncing off of the steel bar during bending are prevented, and the safety of equipment is improved.

Description

Reinforcing bar sample clamping device

Technical Field

The utility model relates to the technical field of steel bar processing equipment, in particular to a steel bar sample clamping device.

Background

The reverse bending test machine for reinforcing steel bar is one technological equipment for planar reverse bending test, and during reverse bending test, the sample is first bent in the forward direction by 90 deg. to maintain the temperature of the bent sample at 100 deg.c + -10 deg.c for 30min, cooled naturally and then bent in the reverse direction, and the two bending angles are measured while maintaining the load.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a steel bar sample clamping device which comprises a seat plate, wherein the upper surface of the seat plate is provided with a chute extending along the long axis of the seat plate, two groups of support mechanisms sliding back and forth along the chute are arranged above the seat plate, clamping seats with adjustable angles are arranged at the top ends of the support mechanisms, the clamping seats clamp and support steel bars, and a fixing assembly for limiting the steel bars is arranged at one end, away from the two clamping seats, of each clamping seat.

In a preferred embodiment, the support mechanism comprises a sliding plate attached to the surface of the seat plate, a sliding block embedded in the sliding groove is fixed at the bottom of the sliding plate, the cross sections of the sliding block and the sliding groove are T-shaped, a fastening bolt penetrates through the middle of the upper surface of the sliding plate, and the bottom end of the fastening bolt extends into the sliding groove to be attached to the bottom of the sliding groove.

In a preferred embodiment, two sides of the sliding plate are provided with vertical side plates, the outer walls of the side plates are provided with positioning bolts, a limit screw is connected between the positioning bolts on the side plates on the same side of the two groups of support mechanisms, two groups of limit nuts are sleeved outside the limit screw, each group is provided with two limit nuts, and each group of limit nuts is respectively positioned on two sides of the positioning bolts.

In a preferred embodiment, the bottom of the clamping seat is provided with a steering seat, the surface of the steering seat is provided with a groove, the clamping seat is embedded in the groove, two ends of the steering seat are connected with rotating shafts, the top ends of the side plates are embedded with bearings, and two ends of the rotating shafts are inserted in the bearings of the side plates at two sides.

In a preferred embodiment, the surface of the clamping seat is provided with a V-shaped clamping groove.

In a preferred embodiment, the fixing component comprises a spring steel sheet fixed on the outer wall of one side of the clamping seat and a buckle arranged on the outer wall of the other side of the clamping seat, the spring steel sheet is in a strip shape, and a plurality of positioning holes are formed in the spring steel sheet.

In a preferred embodiment, a clamping hole which is matched with the spring steel sheet is formed in the clamp, the clamping hole extends downwards and penetrates through the clamp, a positioning screw tube is fixed on the outer wall of the clamp, and the positioning screw bolt is perpendicular to the outer wall of the clamping seat;

the positioning screw tube is internally inserted with a positioning bolt, the outer diameter of the positioning bolt is the same as the inner diameter of the positioning hole, an inner hole is formed in the outer wall of the clamping seat positioned at the inner side of the clamping hole, and the inner hole and the positioning bolt are positioned on the same straight line.

The utility model has the technical effects and advantages that:

according to the utility model, in the process of a steel bar bending test, the steel bar test article can be effectively fixed on the clamping seat, so that the phenomena of sliding, tilting and bouncing off of the steel bar during bending are prevented, and the safety of equipment is improved.

Drawings

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

FIG. 2 is a schematic view of another overall structure of the present utility model;

fig. 3 is a schematic cross-sectional view of the fixing assembly of the present utility model at the inner hole.

Reference numerals illustrate: the clamping device comprises a seat plate 1, a sliding groove 2, a clamping seat 3, a sliding plate 4, a sliding block 5, a fastening bolt 6, a side plate 7, a positioning bolt 8, a limiting screw 9, a limiting nut 10, a steering seat 11, a groove 12, a rotating shaft 13, a bearing 14, a clamping groove 15, a spring steel sheet 16, a clamping buckle 17, a positioning hole 18, a clamping hole 19, a positioning screw pipe 20, a positioning bolt 21 and an inner hole 22.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

The steel bar sample clamping device shown in fig. 1-3 comprises a seat board 1, wherein a chute 2 extending along the long axis of the seat board 1 is arranged on the upper surface of the seat board 1, two groups of support mechanisms sliding back and forth along the chute 2 are arranged above the seat board 1, angle-adjustable clamping seats 3 are arranged at the top ends of the support mechanisms, the clamping seats 3 clamp and support steel bars, and a fixing assembly for limiting the steel bars is arranged at one end, away from the two clamping seats 3;

wherein, the surface of the clamping seat 3 is provided with a V-shaped clamping groove 15;

on the basis of the above, the number of the clamping seats 3 is two, during operation, the steel bars to be bent are arranged on the two clamping seats 3, the pressure head of the bending tester moves downwards and acts on the steel bars between the two clamping seats 3, the steel bars are bent forward by 90 degrees and then bent reversely, and in the bending process, the fixing assembly is used for fixing the steel bars in the clamping grooves 15 in an auxiliary manner, so that the steel bars are prevented from sliding and popping out in the bending process.

Further, the support mechanism comprises a sliding plate 4 attached to the surface of the seat plate 1, a sliding block 5 embedded in the sliding groove 2 is fixed at the bottom of the sliding plate 4, the cross sections of the sliding block 5 and the sliding groove 2 are T-shaped, a fastening bolt 6 penetrates through the middle part of the upper surface of the sliding plate 4, and the bottom end of the fastening bolt 6 extends into the sliding groove 2 to be attached to the bottom of the sliding groove 2;

on the basis of the above, the sliding plate 4 slides on the surface of the seat board 1 through the sliding block 5 and the sliding groove 2, the distance between the two support mechanisms and the clamping seat 3 is adjusted, and after the adjustment, the fastening bolt 6 is rotated to enable the bottom end of the fastening bolt to tightly abut against the bottom of the sliding groove 2, so that the sliding plate 4 is primarily fixed.

Two sides of the sliding plate 4 are provided with vertical side plates 7, the outer walls of the side plates 7 are provided with positioning bolts 8, a limiting screw rod 9 is connected between the positioning bolts 8 on the side plates 7 on the same side of the two groups of support mechanisms, two groups of limiting nuts 10 are sleeved outside the limiting screw rod 9, each group is two, and each group of limiting nuts 10 is respectively positioned on two sides of the positioning bolts 8;

further, the distance between the two support mechanisms is fixed by using the fastening bolts 6, the sliding plate 4 is fixed, the limit screw 9 and the positioning bolts 8 are required to be adjusted, and as the side plates 7 are fixed on two sides of the sliding plate 4, the limit nuts 10 are removed from two sides of the positioning bolts 8 when the position of the sliding plate 4 is adjusted, so that the limit screw 9 can move in the positioning bolts 8, after the sliding plate 4 and the side plates 7 move, the limit nuts 10 are screwed to two sides of the positioning bolts 8 again, the positioning bolts 8 are clamped, and the position limit of the sliding plate 4 and the side plates 7 is realized.

The bottom of the clamping seat 3 is provided with a steering seat 11, the surface of the steering seat 11 is provided with a groove 12, the clamping seat 3 is embedded in the groove 12, two ends of the steering seat 11 are connected with rotating shafts 13, the top end of the side plate 7 is embedded with a bearing 14, and two ends of the rotating shaft 13 are inserted in the bearings 14 of the side plates 7 at two sides;

on the basis of the above, the steering seat 11 can rotate between the side plates 7 through the rotating shaft 13 and the bearing 14 to perform angle adjustment, and the adjustment is self-adaptive, when the steel bar is fixed in the clamping groove 15 on the clamping seat 3, the two clamping seats 3 are parallel, and when the middle section of the steel bar is stressed to bend downwards, the two clamping seats 3 tilt slowly at the top ends of the side plates 7, and the angle of the bent steel bar is consistent.

Further, the steel bar is fixed on the clamping seat 3 through a fixing component, the fixing component comprises a spring steel sheet 16 fixed on the outer wall of one side of the clamping seat 3 and a buckle 17 arranged on the outer wall of the other side of the clamping seat 3, the spring steel sheet 16 is in a strip shape, and a plurality of positioning holes 18 are formed in the spring steel sheet 16;

the clamping holes 19 which are matched with the spring steel sheets 16 are formed in the clamping buckles 17, and the clamping holes 19 extend downwards and penetrate through the clamping buckles 17;

the spring steel sheet 16 can be bent at a certain angle and automatically rebounded at a certain angle after being loosened, when the steel bar is placed in the clamping groove 15, the spring steel sheet 16 can be broken off to cover the outer side of the steel bar, the other end of the spring steel sheet 16 is inserted into the clamping hole 19 on the clamping buckle 17, and the steel bar is tightly bolted through the spring steel sheet 16.

Further, in order to place in the bending process, the spring steel sheet 16 is forced to pop out, a positioning screw tube 20 is fixed on the outer wall of the buckle 17, a positioning bolt 21 is perpendicular to the outer wall of the clamping seat 3, a positioning bolt 21 is inserted into the positioning screw tube 20, the outer diameter of the positioning bolt 21 is the same as the inner diameter of the positioning hole 18, an inner hole 22 is formed in the outer wall of the clamping seat 3 located at the inner side of the clamping hole 19, and the inner hole 22 and the positioning bolt 21 are located on the same straight line.

After the spring steel sheet 16 is inserted into the clamping hole 19 of the clamping buckle 17, the positioning bolt 21 is rotated to pass through the spring steel sheet 16 in the clamping hole 19, and passes through the positioning hole 18 on the spring steel sheet 16, so that the end part of the positioning bolt 21 is inserted into the inner hole 22, the spring steel sheet 16 is fixed in the clamping buckle 17, and the spring steel sheet 16 is prevented from being sprung due to the bending stress of the steel bar.

Further, an inner hole 22 is formed in the outer wall of the clamping seat 3, so that when the spring steel sheet 16 is stressed in the bending process of the steel bar, the generated tensile force not only acts on the clamping buckle 17, but also applies a part of the tensile force on the clamping seat 3, and the thinner clamping buckle 17 is prevented from being broken.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The utility model provides a reinforcing bar sample clamping device, its characterized in that, includes the bedplate, has seted up the spout that extends along the bedplate major axis at bedplate upper surface, is equipped with two sets of support mechanisms that slide back and forth along the spout above the bedplate, all installs the grip slipper that the angle is adjustable on support mechanism top, and the grip slipper carries out the centre gripping to the reinforcing bar and supports, installs the fixed subassembly that carries out spacing to the reinforcing bar in the one end that two grip slipper kept away from mutually.

2. A rebar sample clamping apparatus according to claim 1, wherein: the support mechanism comprises a sliding plate attached to the surface of the seat plate, a sliding block embedded in the sliding groove is fixed at the bottom of the sliding plate, the cross sections of the sliding block and the sliding groove are T-shaped, a fastening bolt penetrates through the middle of the upper surface of the sliding plate, and the bottom end of the fastening bolt extends into the sliding groove to be attached to the bottom of the sliding groove.

3. A rebar sample holding apparatus according to claim 2, wherein: the two sides of the sliding plate are provided with vertical side plates, the outer walls of the side plates are provided with positioning bolts, a limiting screw is connected between the positioning bolts on the side plates on the same side of the two groups of support mechanisms, two groups of limiting nuts are sleeved outside the limiting screw, each group of limiting nuts is two, and each group of limiting nuts is respectively positioned on two sides of the positioning bolts.

4. A rebar sample clamping apparatus according to claim 3, wherein: the clamping seat bottom is equipped with turns to the seat, turns to the surface of seat and sets up flutedly, and the clamping seat inlays the inside of locating the recess, is connected with the pivot at the both ends that turn to the seat, inlays on the curb plate top and is equipped with the bearing, peg graft in the bearing inside of both sides curb plate at the both ends of pivot.

5. A rebar sample clamping apparatus according to claim 1, wherein: the surface of the clamping seat is provided with a V-shaped clamping groove.

6. A rebar sample clamping apparatus according to claim 1, wherein: the fixing component comprises a spring steel sheet fixed on the outer wall of one side of the clamping seat and a buckle arranged on the outer wall of the other side of the clamping seat, the spring steel sheet is in a strip shape, and a plurality of positioning holes are formed in the spring steel sheet.

7. The rebar sample clamping apparatus according to claim 6, wherein: the clamping holes are formed in the clamping buckles and are matched with the spring steel sheets, the clamping holes extend downwards and penetrate through the clamping buckles, positioning screw pipes are fixed on the outer walls of the clamping buckles, and the positioning screw bolts are perpendicular to the outer walls of the clamping holders;