CN203292371U - Pile tip bending machine for reinforcement cages comprising precast piles - Google Patents

Abstract

The utility model discloses a pile tip bending machine for reinforcement cages comprising precast piles. The pile tip bending machine comprises a framework, wherein the framework comprises a base and vertical support plates arranged on the base; the vertical support plates comprise a first vertical support plate and a second vertical support plate; the first vertical support plate and the second vertical support plate are arranged in a front-back manner and are parallel to each other; a power mechanism and a reinforcing steel bar guiding locating mechanism are arranged between the first vertical support plate and the second vertical support plate, and the power mechanism is controlled by a control system arranged on the side of the vertical support plates; a pile tip limiting mechanism is further arranged on the base and is positioned at the rear of the second vertical support plate; and the base comprises two parallel transverse plates and two parallel slide rails, the slide rails are arranged between the two transverse plates, and the vertical support plates or the pile tip limiting mechanism can slide along the slide rails. The pile tip bending machine is simple in structure and high in accuracy, and is particularly suitable for bending pile tips of reinforcement cages which are formed by means of automatic roll welding and comprise deformed steel bars.

Description

A prefabricated pile reinforcement cage pile tip bending machine

technical field

The utility model relates to a bending machine, in particular to a prefabricated pile reinforcement cage pile tip bending machine.

Background technique

Prefabricated concrete piles have the advantages of saving wood and steel, being able to bear large loads, being durable, fast in construction, and low in cost. Anti-skid or water-proof for slope and foundation pit support.

Prefabricated concrete piles can be divided into two categories: prefabricated reinforced concrete piles and prestressed concrete piles according to the type of main reinforcement and the corresponding production process. The pile tip of the prestressed concrete pile is generally connected to the pile body by welding or flange connection before the pile is driven. The integrated design of the pile point and the reinforcement cage of the prefabricated reinforced concrete pile is poured with the pile body and formed at one time. The reinforcement cage of the traditional prefabricated reinforced concrete square pile is bound by hand, and the steel reinforcement at the tip of the reinforcement cage can be pre-bent, and then the reinforcement cage is bound. The steel cage of the latest prefabricated high-strength concrete square pile adopts automatic rolling welding, and the steel bar at the tip of the steel cage can only be bent after the stirrup rolling welding is completed. If manual bending is used, it is not only time-consuming and laborious, but also the bending size is difficult to control, and it is easy to damage the welded steel cage.

This shows that the prior art needs to be further improved and improved.

Utility model content

In order to avoid the disadvantages of the above-mentioned prior art, the utility model provides a prefabricated pile reinforcement cage pile tip bending machine.

The technical scheme adopted in the utility model is:

A prefabricated pile steel cage pile point bending machine, comprising a frame, the frame includes a base and a vertical support plate arranged on the base, the vertical support plate includes a first vertical support plate and a second vertical support plate The first and second vertical support plates are arranged one after the other and are parallel to each other; a power mechanism and a steel bar guiding and positioning mechanism are installed between the first and second vertical support plates, so that The power mechanism is controlled by a control system arranged on one side of the vertical support plate; the base is also provided with a pile point limit mechanism, and the pile point limit mechanism is located behind the second vertical support plate; The base includes two parallel horizontal plates and two parallel slide rails arranged between the two horizontal plates, and the above-mentioned vertical support plate or pile point stop mechanism can slide along the slide rails.

The first and second vertical support plates both include a bottom vertical plate and a frame plate arranged above the bottom vertical plate and integrally connected with the bottom vertical plate, and an approximately quadrilateral opening is opened in the middle of the frame plate , the four corners of the opening are arc-shaped transitions, the cross-section of the frame plate is approximately quadrilateral, and the outer sides of the four corners of the frame plate are provided with the installation end faces of the above-mentioned power mechanism; The four corners of the port correspond one-to-one to the four corners of the frame plate.

The power mechanism includes a driving cylinder and a pressure head that performs reciprocating linear motion under the drive of the driving cylinder, and the pressure head is facing the steel bar passing through the steel bar guiding and positioning mechanism.

The steel bar guiding and positioning mechanism includes a crescent buckle installed on the above-mentioned vertical support plate. The crescent buckle includes two positioning parts opposite to each other and a first bending part connecting the two positioning parts. The first A first steel bar insertion groove is provided at an inner middle position of the bending portion.

The pile point limiting mechanism includes two parallel columns, a baffle is arranged between the two columns, and a size limiting block is arranged at the center of the front end of the baffle.

There are four driving cylinders, which are respectively installed on the above-mentioned installation end surface. The driving cylinder includes a cylinder body, a positioning plate arranged on the top of the cylinder body and a piston rod connected to the cylinder body; The two opposing clamping parts and the second bending part connecting the upper parts of the two clamping parts form a steel bar bending groove in the middle of the two clamping parts, and the top end of the second bending part is connected with the above-mentioned piston rod.

There are four crescent buckles, which are respectively installed at the four top corners of the above-mentioned opening; one of the positioning parts of the crescent buckle is hinged on the above two vertical support plates through a hinge shaft, and the other positioning part is through The pin shaft is installed on the above two vertical support plates, and one end of the pin shaft is provided with a pull ring; corresponding to the hinge shaft and the pin shaft, four mounting lugs are respectively provided at the four corners of the opening plate; the four corners of the opening are also provided with blocks corresponding to the crescent buckle, and the inner end surface of the block is provided with a second steel bar insertion groove.

The width of the positioning plate is slightly larger than the distance between the first and second vertical support plates.

The cross-section of the size limiting block is quadrangular and one of its two diagonals is arranged horizontally and the other is vertically arranged. The inside of the size limiting block is a hollow structure.

Both the crescent buckle and the stopper are located on the front end of the first vertical support plate, and the pull ring is located behind the second vertical support plate.

Owing to adopting above-mentioned technical scheme, the beneficial effect that the utility model obtains is:

1. The utility model adopts an automatic way to bend the steel bar, which avoids the time-consuming and labor-intensive problems caused by manual bending, and the problem that the bending angle and size are difficult to control, reduces labor intensity, and improves work efficiency.

2. The utility model has the advantages of simple structure, convenient installation and maintenance, stable operation and high precision.

3. The utility model is especially suitable for bending the pile tip of the rebar cage formed by automatic seam welding.

Description of drawings

Fig. 1 is a schematic structural view of the utility model, wherein the two crescent buttons on the top are in the closed state, and the two crescent buttons on the bottom are in the open state.

Fig. 2 is a structural schematic diagram of the driving cylinder in the utility model.

Fig. 3 is a structural schematic diagram of the steel bar guiding and positioning mechanism in the locked state of the crescent buckle in the utility model.

Fig. 4 is a structural schematic diagram of the steel bar guiding and positioning mechanism in the open state of the crescent buckle in the utility model.

Fig. 5 is a structural schematic diagram of the reinforcement cage before the pile tip of the utility model is bent.

Fig. 6 is a structural schematic diagram of the reinforcement cage after the tip of the utility model is bent.

in,

1. Horizontal plate 2. Slide rail 3. First vertical support plate 4. Second vertical support plate 5. Bottom vertical plate 6. Frame plate 7. Port 8. Drive cylinder 9. Mounting end face 10. Column 11. Baffle plate 12, size limit block 13, control system 14, cylinder body 15, positioning plate 16, piston rod 17, pressure head 18, clamping part 19, second bending part 20, steel bar bending groove 21, positioning part 22 , the first bending part 23, the hinge shaft 24, the pin shaft 25, the first steel bar insertion groove 26, the stopper 27, the second steel bar insertion groove 28, the pull ring 29, the installation ear plate

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the utility model is not limited to these embodiments.

As shown in Figure 1, a prefabricated pile steel cage pile point bending machine includes a frame, the frame includes a base and a vertical support plate arranged on the base, the vertical support plate includes a first vertical The support plate 3 and the second vertical support plate 4, the first and second vertical support plates are arranged one after the other and both are parallel to each other; the first and second vertical support plates both include a bottom vertical plate 5 and a frame plate 6 that is arranged above the bottom vertical plate 5 and is integrally connected with the bottom vertical plate 5. An approximately quadrilateral opening 7 is opened in the middle of the frame plate 6. The four tops of the opening 7 The corners are arc-shaped transitions, the cross-section of the frame plate 6 is approximately quadrilateral, and the outer sides of the four corners of the frame plate 6 are provided with the installation end faces 9 of the above-mentioned power mechanism; The vertices correspond to the four vertices of the frame plate 6 one by one; a power mechanism and a steel bar guiding and positioning mechanism are installed between the first and second vertical support plates, and the power mechanism is arranged on the vertical The control system 13 on one side of the support plate is controlled; the base is also provided with a pile point limit mechanism, and the pile point limit mechanism is located at the rear of the second vertical support plate 4; the base includes two mutually Parallel horizontal plates 1 and two mutually parallel slide rails 2 arranged between the two horizontal plates 1 , the above-mentioned vertical support plate or the pile point limit mechanism can slide along the slide rails 2 .

Described power mechanism comprises drive cylinder 8 and under the drive of described drive cylinder 8, the pressure head 17 that reciprocates linear motion is done, and described pressure head 17 is facing the reinforcing bar that passes through above-mentioned steel bar guide positioning mechanism; Described drive cylinder 8 has Four, it is respectively installed on the above-mentioned installation end face 9, and described drive cylinder 8 comprises cylinder body 14, the positioning plate 15 that is arranged on cylinder body 14 tops and the piston rod 16 that links to each other with described cylinder body 14; 17 includes two clamping parts 18 opposite to each other and a second bending part 19 connecting the upper parts of the two clamping parts 18. A steel bar bending groove 20 is formed in the middle of the two clamping parts 18. The second bending part The top of 19 links to each other with above-mentioned piston rod 16.

The steel bar guiding and positioning mechanism includes a crescent buckle installed on the above-mentioned vertical support plate, and the crescent buckle includes two positioning parts 21 opposite to each other and a first bending part 22 connecting the two positioning parts 21. The first steel bar insertion groove 25 is provided at the inner middle position of the first bending part 22; there are four crescent buckles, which are respectively installed at the four corners of the above-mentioned opening 7; One positioning part is hinged on the above-mentioned two vertical support plates through a hinge shaft 23, and the other positioning part is installed on the above-mentioned two vertical support plates through a pin shaft 24, and one end of the pin shaft 24 is provided with a pull ring 28; Corresponding to the hinge shaft 23 and the pin shaft 24, four mounting lugs 29 are respectively provided at the four corners of the opening 7; The stopper 26 of the buckle, the inner end surface of the stopper 26 is provided with a second steel bar insertion groove 27.

The pile tip limiting mechanism includes two parallel columns 10, a baffle plate 11 is arranged between the two columns 10, and a size limiting block 12 is arranged at the center of the front end of the baffle plate 11.

Preferably, the size limiting block 12 has a quadrilateral cross-section and one of its two diagonals is horizontal and the other is vertical. The size limiting block 12 is hollow.

Preferably, both the crescent buckle and the stopper 26 are located on the front end of the first vertical support plate 3 , and the pull ring 28 is located behind the second vertical support plate 4 .

Preferably, the width of the positioning plate 15 is slightly larger than the distance between the above-mentioned first and second vertical support plates.

The operating process of the utility model can be briefly described as follows:

Pull the pull ring 28 to disengage the pin shaft 24 from the crescent buckle, pull the crescent buckle so that the crescent buckle rotates upward around the hinge shaft 23 until it touches the stopper 26, and then inserts the four corner steel bars at the pile tip of the welded steel cage In the steel bar bending groove 20 of the pressure head 17, the crescent buckle is pulled to return to the initial state, and the pin shaft 24 is pushed to make the crescent buckle in a locked state; after that, the control system 13 starts the bending command, and in the control system Under the control, the piston rod 16 of the driving cylinder 8 moves toward the steel bar until the pressure head 17 bends the pile tip to the position limited by the size limit block 12, and the control system 13 initiates a reset command to reset the driving cylinder 8 and pull the pull ring 28 , the pin shaft 24 is disengaged from the crescent buckle, the crescent buckle is pulled until it touches the stopper 26, and then the reinforcement cage is removed, and the whole pile tip bending process can be completed.

The utility model is especially suitable for bending the pile tip of the threaded steel reinforcement cage formed by automatic rolling welding.

The parts not mentioned in the utility model can be completed by using or referring to the prior art.

Although terms such as the horizontal plate 1, the first vertical support plate 3, the frame plate 6, the driving cylinder 8, the size limit block 12, the pressure head 17, the hinge shaft 23, and the stopper 26 are often used herein, but The possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

It should be further explained that the specific embodiments described herein are only illustrations for the spirit of the present utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (10)

1. A prefabricated pile reinforcement cage pile tip bending machine, comprising a frame, characterized in that: the frame includes a base and a vertical support plate arranged on the base, and the vertical support plate includes a first vertical A support plate and a second vertical support plate, the first and second vertical support plates are arranged one after the other and both are parallel to each other; a power mechanism and a power mechanism are installed between the first and second vertical support plates The steel bar guide positioning mechanism, the power mechanism is controlled by the control system arranged on one side of the vertical support plate; the base is also provided with a pile point limit mechanism, and the pile point limit mechanism is located to the rear of the support plate; the base includes two parallel horizontal plates and two parallel slide rails arranged between the two horizontal plates, the above-mentioned vertical support plate or pile point limit mechanism can be moved along the Rails slide. the 2. A prefabricated pile reinforcement cage tip bending machine according to claim 1, characterized in that: the first and second vertical support plates both include a bottom vertical plate and are arranged above the bottom vertical plate And the frame plate integrally connected with the bottom vertical plate, a quadrilateral opening is opened in the middle of the frame plate, and the four corners of the opening are arc-shaped transitions, and the cross-section of the frame plate is quadrilateral, The outer sides of the four corners of the frame plate are all provided with the installation end faces of the power mechanism; the four corners of the opening correspond to the four corners of the frame plate one by one. the 3. A prefabricated pile reinforcement cage tip bending machine according to claim 2, characterized in that: the power mechanism includes a drive cylinder and a pressure head that performs reciprocating linear motion under the drive of the drive cylinder, so Said indenter is directly facing the steel bar passing through the above-mentioned steel bar guiding and positioning mechanism. the 4. A prefabricated pile reinforcement cage pile point bending machine according to claim 2, characterized in that: said steel bar guiding and positioning mechanism includes crescent buckles installed on the above-mentioned vertical support plate, and said crescent buckles include each other The two opposing positioning portions and the first bending portion connecting the two positioning portions, a first steel bar insertion groove is provided at an inner middle position of the first bending portion. the 5. A prefabricated pile reinforcement cage pile point bending machine according to claim 1, characterized in that: the pile point limit mechanism includes two parallel columns, and a stopper is arranged between the two columns. plate, and a size limiting block is arranged at the central position of the front end surface of the baffle plate. the 6. A prefabricated pile reinforcement cage pile tip bending machine according to claim 3, characterized in that: there are four driving cylinders, which are installed on the above-mentioned installation end faces respectively, and the driving cylinders include a cylinder body, The positioning plate arranged on the top of the cylinder body and the piston rod connected with the cylinder body; the pressure head includes two clamping parts opposite to each other and a second bending part connecting the upper parts of the two clamping parts. A steel bar bending groove is formed in the middle of the two clamping parts, and the top end of the second bending part is connected with the above-mentioned piston rod. the 7. A prefabricated pile reinforcement cage pile point bending machine according to claim 4, characterized in that: there are four crescent buckles, which are respectively installed at the four corners of the above-mentioned opening; One of the positioning parts of the buckle is hinged on the above two vertical support plates through a hinge shaft, and the other positioning part is installed on the above two vertical support plates through a pin shaft, and one end of the pin shaft is provided with a pull ring; corresponding The hinge shaft and the pin shaft are respectively provided with four mounting lugs at the four corners of the port; the four corners of the port are also provided with stoppers corresponding to the crescent buckle, so A second steel bar insertion groove is provided on the inner end surface of the stopper. the 8. A prefabricated pile reinforcement cage tip bending machine according to claim 6, characterized in that: the width of the positioning plate is greater than the distance between the first and second vertical support plates. the 9. A prefabricated pile reinforcement cage tip bending machine according to claim 5, characterized in that: the cross-section of the size limiting block is a quadrilateral and one of its two diagonals is horizontally arranged, and the other One is vertically arranged, and the inside of the size limiting block is a hollow structure. the 10. A prefabricated pile reinforcement cage tip bending machine according to claim 7, characterized in that: the crescent buckle and the stopper are both located on the front end of the first vertical support plate, and the pull ring Located behind the above-mentioned second vertical support plate. the

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