CN215926786U

CN215926786U - Mechanical connection equipment for steel bar extrusion sleeve

Info

Publication number: CN215926786U
Application number: CN202121690461.8U
Authority: CN
Inventors: 李天胜; 肖双清; 楚新炜; 张瑞青; 李兴春; 李宗治; 温辉
Original assignee: Third Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-01
Anticipated expiration: 2031-07-23

Abstract

The utility model belongs to the technical field of cold-pressed connection of steel bars, and solves the problems of low construction efficiency, higher labor cost, and lower connection precision and stability in the conventional steel bar mechanical connection. The utility model provides a reinforcing bar extrusion sleeve mechanical connection equipment, which comprises a base, be provided with the slip table module on the base, slip table module side direction is placed and the place ahead sliding connection has the hydraulic pressure to extrude pincers, the vertical setting of hydraulic pressure extrusion pincers, be provided with extrusion die in the hydraulic pressure extrusion pincers, the rear of slip table module is provided with the hydraulic pressure oil pump subassembly that control hydraulic pressure extrusion pincers add the release, the outside cover of hydraulic pressure oil pump subassembly is equipped with the casing, install programme-controlled system on the casing, slip table module, hydraulic pressure oil pump subassembly all with programme-controlled headtotail. The utility model can improve the construction efficiency, reduce the labor cost and realize the semi-automatic operation of the steel bar sleeve extrusion technology, and has high connection precision.

Description

Mechanical connection equipment for steel bar extrusion sleeve

Technical Field

The utility model belongs to the technical field of cold-pressed connection of steel bars, and particularly relates to mechanical connection equipment for a steel bar extrusion sleeve.

Background

The connection method of the concrete structure construction site reinforcing steel bar generally comprises three types of binding and rolling connection, welding connection and mechanical connection, and because the binding and rolling connection and the welding connection technology have certain inherent defects, the mechanical connection gradually becomes the mainstream of the existing reinforcing steel bar connection;

at present, mechanical coupling joint common use sleeve extrusion coupling joint makes connecting piece steel sleeve plastic deformation and the inseparable interlock of ribbed steel bar through the extrusion force, divide into radial extrusion connection and axial extrusion connection, because axial extrusion connects the site operation inconvenient and connect the quality stable inadequately, does not obtain promoting, and the sleeve extrusion coupling joint who uses in the engineering all is radial extrusion connection.

However, the following problems are common to the sleeve press connection mode:

1. manual field connection is generally adopted, so that the labor intensity is high and the connection efficiency is low;

2. the connection quality highly depends on the operation of workers, the connection tightness is poor, and the mechanical connection quality of the steel bars is difficult to guarantee;

3. the completion steel bar connection work generally needs 4 people to cooperate simultaneously, and sleeve extrusion position and extrusion force value control rely on the workman to operate completely, and it is big to connect the randomness, and the quality discreteness is big.

Therefore, a mechanical connection device for a steel bar extrusion sleeve, which can improve the construction efficiency, reduce the labor cost and has high connection precision, is urgently needed to be researched.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of low construction efficiency, high labor cost, low connection precision and low stability in the existing steel bar mechanical connection, the utility model aims to provide the steel bar extrusion sleeve mechanical connection equipment.

In order to achieve the purpose, the mechanical connecting device for the steel bar extrusion sleeve comprises a base, wherein a sliding table module is arranged on the base, the sliding table module is laterally placed, a hydraulic extrusion clamp is connected in front in a sliding mode, the hydraulic extrusion clamp is vertically arranged, an extrusion die is arranged in the hydraulic extrusion clamp, a hydraulic oil pump assembly for controlling the hydraulic extrusion clamp to add and release pressure is arranged behind the sliding table module, a shell is covered on the outer side of the hydraulic oil pump assembly, a program control system is installed on the shell, and the sliding table module and the hydraulic oil pump assembly are both connected with the program control system.

Preferably, the hydraulic oil pump assembly comprises a motor pump, a hydraulic oil tank, an electromagnetic valve and a high-pressure anti-explosion oil pipe, the motor pump is installed on the base, the hydraulic oil tank is arranged above the motor pump, the electromagnetic valve is arranged on one side wall of the hydraulic oil tank, the high-pressure anti-explosion oil pipe is connected onto the electromagnetic valve, and the other end of the high-pressure anti-explosion oil pipe is connected onto the hydraulic extrusion pliers.

Preferably, the slip table module includes the slide block seat, step-by-step servo motor, line rail and ball screw, and step-by-step servo motor installs the one end at the slide block seat, and the line rail is installed on the slide block seat, and ball screw's both ends rotate respectively and connect on step-by-step servo motor and slide block seat, are provided with the slider on the ball screw, and the front end fixed connection of slider is on hydraulic pressure extrusion pincers, and the rear end sliding connection of slider is on the line rail.

Preferably, the extrusion die comprises an upper die and a lower die which are arranged oppositely, the upper die can move vertically under the driving of the hydraulic extrusion pliers, the lower die is fixedly arranged on a base of the hydraulic extrusion pliers, an extrusion gap is formed between the upper die and the lower die, and the base of the hydraulic extrusion pliers abuts against the base.

Preferably, two spring brackets are arranged on a base of the hydraulic extrusion pliers, the two spring brackets are arranged on the left side and the right side of the lower die, the extrusion sleeve is transversely clamped in the bracket of the two spring brackets, and the extrusion sleeve is arranged between the upper die and the lower die.

Preferably, the left and right sides of hydraulic pressure extrusion pincers all is provided with the supplementary tray of reinforcing bar, and two supplementary trays of reinforcing bar set up both ends about the base.

Preferably, the base is fixedly provided with a clamping plate, the clamping plate is arranged between the two reinforcing steel bar auxiliary supporting blocks, and the clamping plate is embedded in a base of the hydraulic extrusion pliers.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the hydraulic oil pump assembly is used for pressurizing and depressurizing the hydraulic extrusion clamp, so that cold pressing is carried out on the steel bar extrusion sleeve, the sliding table module is used for controlling the hydraulic extrusion clamp to move left and right to change the extrusion position of the steel bar extrusion sleeve, and semi-automatic operation of the steel bar sleeve extrusion technology is realized;

2. the hydraulic oil pump assembly and the sliding table module are controlled by a program control system, and an oil pressure return preset value of the hydraulic oil pump assembly and a displacement path of a hydraulic extrusion clamp are input into the program control system so as to control the operation of the hydraulic oil pump assembly and the sliding table module;

3. the spring bracket is also arranged on the base of the hydraulic extrusion pliers to limit the steel bar extrusion sleeve, so that two steel bars to be connected can be conveniently installed;

4. the utility model can improve the construction efficiency, reduce the labor cost, has high connection precision and is suitable for popularization and use in construction sites.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present invention;

fig. 3 is a schematic view of a compression sleeve connection compression work using the apparatus.

In the figure: 1-a base; 2-a sliding table module; 2.1-slide bench base; 2.2-step servo motor; 2.3-linear rail; 2.4-ball screw; 2.5-a slide block; 3-hydraulic extrusion pliers; 4-a hydraulic oil pump assembly; 4.1-motor pump; 4.2-hydraulic oil tank; 4.3-electromagnetic valve; 4.4-high pressure explosion-proof oil pipe; 5-a shell; 6-program control system; 7-extruding the die; 7.1-upper mold; 7.2-lower die; 8-a spring bracket; 9-auxiliary supporting blocks for reinforcing steel bars; 10-extruding the sleeve; 11-reinforcing steel bars; a card board-12.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the present disclosure, and are not used for limiting the limit of the present disclosure, which is not a technical meaning, and any structural modifications, ratio changes, or size adjustments may still fall within the scope of the present disclosure without affecting the function and the achievable effect of the present disclosure.

The present invention provides an embodiment:

the utility model provides a reinforcing bar extrusion sleeve mechanical connection equipment, as shown in fig. 1, including base 1, be provided with slip table module 2 on the base 1, slip table module 2 side direction is placed and the place ahead sliding connection has hydraulic extrusion pincers 3, the vertical setting of hydraulic extrusion pincers 3, be provided with extrusion die 7 in the hydraulic extrusion pincers 3, the rear of slip table module 2 is provided with the hydraulic oil pump subassembly 4 of control hydraulic extrusion pincers 3 pressure adding release, the outside cover of hydraulic oil pump subassembly 4 is equipped with casing 5, install programme-controlled system 6 on the casing 5, slip table module 2, hydraulic oil pump subassembly 4 all is connected with programme-controlled system 6.

As shown in fig. 2, the hydraulic oil pump assembly 4 includes a motor pump 4.1, a hydraulic oil tank 4.2, an electromagnetic valve 4.3 and a high-pressure explosion-proof oil pipe 4.4, the motor pump 4.1 is installed on the base 1, the hydraulic oil tank 4.2 is arranged above the motor pump 4.1, the electromagnetic valve 4.3 is arranged on one side wall of the hydraulic oil tank 4.2, the high-pressure explosion-proof oil pipe 4.4 is connected to the electromagnetic valve 4.3, and the other end of the high-pressure explosion-proof oil pipe 4.4 is connected to the hydraulic extrusion pliers 3.

In this embodiment, the power of the motor pump 4.1 is 7KW, the rated voltage is 380V/50HZ, the electromagnetic valve 4.3 is controlled by the program control system 6, and the program control system 6 can adjust the control of the electromagnetic valve 4.3 on the oil pressure to realize automatic oil feeding and returning, so as to achieve the purpose of automatically loading and unloading loads, during operation, hydraulic oil in the hydraulic oil tank 4.2 is pumped into the hydraulic extrusion pliers 3 from the oil tank through the oil inlet pipe of the high-pressure explosion-proof oil pipe 4.4 through the motor pump 4.1, so as to drive the upper die 7.1 to move downward, when the force value reaches a set value, the electromagnetic valve 4.3 automatically returns oil, the hydraulic oil flows back to the oil tank through the oil return pipe of the high-pressure explosion-proof oil pipe 4.4, the upper die 7.1 moves upward, and the specific working steps and working principle are the prior art well known to the skilled person, and are not described herein.

Slip table module 2 includes slide block seat 2.1, step-by-step servo motor 2.2, line rail 2.3 and ball screw 2.4, step-by-step servo motor 2.2 installs the one end at slide block seat 2.1, line rail 2.3 is installed on slide block seat 2.1, ball screw 2.4's both ends are rotated respectively and are connected on step-by-step servo motor 2.2 and slide block seat 2.1, be provided with slider 2.5 on the ball screw 2.4, slider 2.5's front end fixed connection is on hydraulic pressure extrusion pincers 3, slider 2.5's rear end sliding connection is on line rail 2.3.

In this embodiment, the working stroke of the sliding table module 2 is 400mm, one end of the ball screw 2.4 is connected with the stepping servo motor 2.2 through a coupler, the stepping servo motor 2.2 drives the ball screw 2.4 to rotate, the slider 2.5 is arranged on the ball screw 2.4 in a penetrating manner, the ball screw 2.4 drives the slider 2.5 to slide on the linear rail 2.3, the slider 2.5 drives the hydraulic extrusion pliers 3 connected in front to move, the stepping servo motor 2.2 is controlled by the program control system 6, the program control system 6 can adjust the moving speed, the specific moving direction and the stroke of the slider 2.5 on the sliding table module 2, the specific structure and the working principle of the sliding table module 2 composed of the ball screw 2.4 and other components are also the prior art well known by those skilled in the art, and further description is omitted here.

Extrusion die 7 includes relative last mould 7.1 and lower mould 7.2 that sets up, it can be vertical removal under the drive of hydraulic extrusion pincers 3 to go up mould 7.1, lower mould 7.2 is fixed to be set up on the base of hydraulic extrusion pincers 3, it forms the extrusion clearance to go up between mould 7.1 and the lower mould 7.2, the base butt of hydraulic extrusion pincers 3 is on base 1, the minimum extrusion clearance that goes up mould 7.1 and lower mould 7.2 formation is less than the external diameter of extrusion sleeve 10, the shape of going up the extrusion face of mould 7.1 and lower mould 7.2 is the arcwall face with the shape complex of extrusion sleeve 10.

The base butt of hydraulic pressure extrusion pincers 3 is on base 1, specifically, the fixed cardboard 12 that is provided with on the base 1, cardboard 12 sets up between two supplementary tray 9 of reinforcing bar, cardboard 12 inlays and establishes in the base of hydraulic pressure extrusion pincers 3, and hydraulic pressure extrusion pincers 3 slide along the length direction of cardboard 12, and when last mould 7.1 extrudees down, cardboard 12 and base 1 can play reaction force to realize extruding telescopic colding pressing.

Referring to fig. 2 and 3, two spring brackets 8 are arranged on a base of the hydraulic extrusion pliers 3, the two spring brackets 8 are arranged on the left side and the right side of the lower die 7.2, the extrusion sleeve is transversely clamped in the bracket grooves of the two spring brackets 8, the two spring brackets 8 are convenient for limiting the initial position of the extrusion sleeve 10, and when the extrusion sleeve 10 is pressed down by the upper die 7.1, the spring brackets 8 move down along with the extrusion sleeve 10 until the extrusion sleeve 10 is pressed on the lower die 7.2.

The left and right sides of hydraulic pressure extrusion pincers 3 all is provided with supplementary tray 9 of reinforcing bar, and two supplementary trays 9 of reinforcing bar set up both ends about the base, and the setting of the supplementary tray 9 of reinforcing bar can be convenient for both sides workman to the control of reinforcing bar 11, arranges reinforcing bar 11 in the arc draw-in groove of the supplementary tray 9 of reinforcing bar, and when extrusion sleeve 10 was compressed tightly on lower mould 7.2, reinforcing bar 11 compressed tightly in the arc draw-in groove bottom of the supplementary tray 9 of reinforcing bar.

The program control system 6 comprises a program controller, an operating platform and a display screen, the moving speed, the specific displacement direction and the stroke of the sliding block 2.5 of the sliding table module 2 are mainly set for adjustment, meanwhile, the electromagnetic valve 4.3 can be adjustably arranged to control oil pressure, automatic oil feeding and returning are achieved, and therefore the purpose of automatically loading and unloading loads is achieved, the specific structure, the connection mode and the control mode of the program control system 6 are the prior art well known to the technical personnel in the field, and the detailed description is omitted here.

The method comprises the following specific operation steps:

1. according to the specification and model of the steel bar 11 to be connected, in the program control system 6, an oil pressure oil return preset value of the hydraulic oil pump assembly 4 and a displacement path of the hydraulic extrusion clamp 3 are input through an operation platform button in advance (for example, the specification and model of the steel bar is HRB400E, the diameter of the steel bar 11 is 25mm, the oil pressure oil return preset value is set to be 50MPa, the displacement path of the hydraulic extrusion clamp 3 is set to be path 1, the path 1 is set according to the length of an extrusion sleeve 10 matched with the specification of the steel bar 11, and various paths can be set according to different specifications of the extrusion sleeve 10, for example, the path 1 is the starting point position of the hydraulic extrusion clamp 3 from the middle of the extrusion sleeve 10, and the specific stroke is that the middle starting point position → the left movement is 15mm → the left movement is 25mm → the right movement is 85mm → the right movement is 25mm → the left movement is 70mm to return to the middle starting point position);

2. a worker puts an extrusion sleeve 10 in the middle of a spring bracket 8, then two steel bars 11 to be connected are symmetrically inserted into the middle of the extrusion sleeve 10, the lengths of the steel bars 11 inserted into the extrusion sleeve 10 are marked by a marking pen in advance, and then a start button on a program control system 6 is pressed;

3. the sliding block 2.5 of the sliding table module 2 drives the hydraulic extrusion clamp 3 to start to move according to a set path (for example, the hydraulic extrusion clamp stops for 25s after moving 15mm leftwards), the motor pump 4.1 starts to work during the stopping period, the hydraulic extrusion clamp 3 extrudes the upper die 7.1 downwards to tightly extrude the extrusion sleeve 10 and the steel bar 11 to be connected, when the oil pressure reaches an oil return preset value, the electromagnetic valve 4.3 automatically returns oil, the upper die 7.1 moves upwards to return to an initial position, extrusion at other positions is performed according to a set path until the extrusion is finished, and the extrusion is automatically stopped.

This equipment will be original need 4 people's processes of cooperation processing, it can high-quality completion to reduce to 2 people, single attach fitting connect time is 1/2 of original method simultaneously, effectively practice thrift the cost of labor, reduce workman intensity of labour, solved extrusion sleeve 10 mechanical connection inefficiency and the big problem of connection quality discreteness, the very big improvement extrusion sleeve 10 reinforcing bar mechanical connection processing height relies on artificial defect, have extremely extensive spreading value under the realistic condition that the cost of labor increases greatly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a steel bar extrusion sleeve mechanical connection equipment which characterized in that: including base (1), be provided with slip table module (2) on base (1), slip table module (2) side direction is placed and the place ahead sliding connection has hydraulic pressure to extrude pincers (3), the vertical setting of hydraulic pressure pincers (3), be provided with extrusion mould (7) in hydraulic pressure pincers (3), the rear of slip table module (2) is provided with control hydraulic pressure and extrudees hydraulic pressure pincers (3) and adds hydraulic oil pump subassembly (4) of release, the outside cover of hydraulic oil pump subassembly (4) is equipped with casing (5), install programme-controlled system (6) on casing (5), slip table module (2), hydraulic oil pump subassembly (4) all are connected with programme-controlled system (6).

2. The mechanical connection device for the steel bar extrusion sleeve as claimed in claim 1, wherein: the hydraulic oil pump assembly (4) comprises a motor pump (4.1), a hydraulic oil tank (4.2), an electromagnetic valve (4.3) and a high-pressure anti-explosion oil pipe (4.4), the motor pump (4.1) is installed on the base (1), the hydraulic oil tank (4.2) is arranged above the motor pump (4.1), the electromagnetic valve (4.3) is arranged on one side wall of the hydraulic oil tank (4.2), the high-pressure anti-explosion oil pipe (4.4) is connected onto the electromagnetic valve (4.3), and the other end of the high-pressure anti-explosion oil pipe (4.4) is connected onto the hydraulic extrusion pliers (3).

3. A steel bar extruding sleeve mechanical connecting device according to claim 2, wherein: slip table module (2) are including slide block seat (2.1), step-by-step servo motor (2.2), line rail (2.3) and ball screw (2.4), the one end in slide block seat (2.1) is installed in step-by-step servo motor (2.2), install on slide block seat (2.1) line rail (2.3), the both ends of ball screw (2.4) are rotated respectively and are connected on step-by-step servo motor (2.2) and slide block seat (2.1), be provided with slider (2.5) on ball screw (2.4), the front end fixed connection of slider (2.5) is on hydraulic pressure extrusion pincers (3), the rear end sliding connection of slider (2.5) is on line rail (2.3).

4. A steel bar extruding sleeve mechanical connecting device according to claim 3, wherein: extrusion die (7) including relative last mould (7.1) and lower mould (7.2) that sets up, go up mould (7.1) and can be vertical removal under the drive of hydraulic pressure extrusion pincers (3), lower mould (7.2) are fixed to be set up on the base of hydraulic pressure extrusion pincers (3), go up and form extrusion clearance between mould (7.1) and lower mould (7.2), the base butt of hydraulic pressure extrusion pincers (3) is on base (1).

5. The mechanical connection device for the steel bar extrusion sleeve as claimed in claim 4, wherein: two spring brackets (8) are arranged on a base of the hydraulic extrusion pliers (3), the two spring brackets (8) are arranged on the left side and the right side of the lower die (7.2), an extrusion sleeve is transversely clamped in a bracket of the two spring brackets (8), and the extrusion sleeve is arranged between the upper die (7.1) and the lower die (7.2).

6. The mechanical connection device for the steel bar extruding sleeve as claimed in claim 5, wherein: the left side and the right side of the hydraulic extrusion pliers (3) are provided with reinforcing steel bar auxiliary supporting blocks (9), and the two reinforcing steel bar auxiliary supporting blocks (9) are arranged at the left end and the right end of the base.

7. The mechanical connection device for the steel bar extrusion sleeve as claimed in claim 6, wherein: the base (1) is fixedly provided with a clamping plate (12), the clamping plate (12) is arranged between the two reinforcing steel bar auxiliary supporting blocks (9), and the clamping plate (12) is embedded in a base of the hydraulic extrusion pliers (3).