Automatic rib stripping thread rolling machine

Abstract

The utility model provides an automatic rib stripping and thread rolling machine. The automatic rib stripping and thread rolling machine comprises a machine frame, a workbench arranged on the machine frame, a reinforcing steel bar clamping mechanism, a rib stripping and thread rolling mechanism and a cutter expanding mechanism, wherein the reinforcing steel bar clamping mechanism, the rib stripping and thread rolling mechanism and the cutter expanding mechanism are arranged on the workbench. The steel bar clamping mechanism comprises a bottom plate, a vice arranged in the middle of the bottom plate and provided with two movable vice plates, a first hydraulic motor and a second hydraulic motor, wherein the first hydraulic motor and the second hydraulic motor are oppositely arranged at the two ends of the bottom plate and used for driving the two movable vice plates to move respectively. The first hydraulic motor is a high-speed small-torque motor, and the second hydraulic motor is a low-speed large-torque motor; the rib stripping and thread rolling mechanism is driven by a machine head moving hydraulic driver to realize feeding; a hydraulic power mechanism used for providing operation power for the machine head moving hydraulic driver, the first hydraulic motor and the second hydraulic motor and a hydraulic oil tank used for providing an oil source for the hydraulic power mechanism are arranged in the machine frame. According to the utility model, the hydraulic power mechanism and the hydraulic oil tank are integrated in the equipment, so that the miniaturization of the rib stripping thread rolling machine is realized, and the clamping force of reinforcing steel bars is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar straight thread processing, in particular to an automatic rib stripping and thread rolling machine. Background Art

[0002] The rebar stripping and rolling straight thread connection technology, which is frequently used in the construction industry, involves stripping the longitudinal and transverse ribs from the ends of the rebar to be connected by cutting, then rolling out the threads. The rebar connection is then completed directly at the construction site using a connecting sleeve. The key equipment in the rebar straight thread connection process is the rib stripping and rolling machine, which is used to process the rebar straight thread heads. Its structure mainly includes a rebar clamping mechanism, a rib stripping and rolling mechanism, a knife expansion mechanism, and a power mechanism. The rebar clamping mechanism is used to clamp and fix the rebar to be processed that extends to the rib stripping and rolling mechanism. The rib stripping and rolling mechanism is used to strip the ribs from the fixed rebar ends and roll out the threads. The knife expansion mechanism is used to expand the rib stripping knife after the rebar rib stripping is completed. The power mechanism is used to drive the rib stripping and rolling mechanism to move back and forth and to open and close the rebar clamping mechanism. There are usually three types of power mechanisms: pneumatic, electric and hydraulic. All of them have their shortcomings. Among them, the clamping force of the pneumatic power structure is insufficient, and the processing of large-sized steel bars requires two sets of clamping mechanisms; the electric power structure is prone to burning the motor; and the conventional hydraulic power structure requires a larger hydraulic oil tank, which makes the rib stripping and thread rolling equipment too bulky, which is not conducive to its promotion and use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic rib stripping and thread rolling machine in response to the deficiencies of the existing technology, integrate the hydraulic power mechanism into the interior of the rib stripping and thread rolling machine, realize the miniaturization of the rib stripping and thread rolling machine and enhance the clamping force of the steel bars.

[0004] In order to solve the above technical problems, the present invention includes:

[0005] The present invention relates to an automatic rib stripping and thread rolling machine, comprising a frame, a workbench arranged on the frame, a steel bar clamping mechanism arranged on the workbench for fixing the steel bar to be processed, a rib stripping and thread rolling mechanism for stripping the fixed steel bar and rolling it to make a thread head, and a knife expansion mechanism for expanding the rib stripping knife after the steel bar rib stripping is completed; the steel bar clamping mechanism comprises a base plate fixed on the workbench, a vise arranged in the middle of the base plate and having two movable clamps, and a first hydraulic motor and a second hydraulic motor arranged at two ends of the base plate and respectively used to drive the two movable clamps to move; the first hydraulic motor is a high-speed, low-torque motor, and the second hydraulic motor is a low-speed, high-torque motor; the rib stripping and thread rolling mechanism is driven by a machine head moving hydraulic driver and can move back and forth on the workbench; a hydraulic power mechanism for providing operating power to the machine head moving hydraulic driver, the first hydraulic motor and the second hydraulic motor, and a hydraulic oil tank for providing an oil source for the hydraulic power mechanism are arranged inside the frame.

[0006] Furthermore, the rib stripping and thread rolling mechanism includes a thread rolling motor, a reducer and a machine head connected in sequence, and the interior of the machine head is provided with a rib stripping knife and a thread rolling wheel for stripping the ribs and rolling the steel bars; two left and right guide shafts are provided on the workbench, and the guide shafts extend in the front and back directions, and a support slider is provided on each side of the left and right sides of the reducer, and the two support sliders are respectively slidably set on the corresponding guide shafts.

[0007] Furthermore, a rack is provided at the bottom of the reducer, and the rack extends in the front-back direction, and the head moving hydraulic drive is connected to the rack through a gear set.

[0008] Furthermore, the two movable jaws of the vise are respectively driven by a nut-screw mechanism, the output shaft of the first hydraulic motor is connected to the screw of a nut-screw mechanism via a first coupling and a first transmission shaft in sequence, and the output shaft of the second hydraulic motor is connected to the screw of another nut-screw mechanism via a second coupling and a second transmission shaft in sequence.

[0009] Furthermore, the hydraulic power mechanism includes a motor pump group, a pressure sensor and a control valve group; the motor pump group is used to extract oil from the hydraulic oil tank and supply oil to the head moving hydraulic drive and the first hydraulic motor and the second hydraulic motor through the control valve group to drive the movement of each mechanism.

[0010] Furthermore, a baffle is provided on the peripheral side of the frame, and a radiator is provided on the baffle opposite to the hydraulic oil tank.

[0011] The beneficial effects of the utility model are:

[0012] The steel bar clamping mechanism of the present invention adopts a first hydraulic motor and a second hydraulic motor to respectively drive the two movable jaws of the vise to open and close, so as to clamp and fix the steel bar to be processed. The first hydraulic motor is a high-speed, low-torque motor that can quickly clamp or open the vise, and the second hydraulic motor is a low-speed, high-torque motor that can provide a larger torque to firmly fix the steel bar. The rib stripping and thread rolling mechanism is driven by the machine head moving hydraulic driver and can move back and forth on the workbench to realize machine head feeding. The present invention adopts an improved steel bar clamping mechanism. The hydraulic power mechanism does not need to be equipped with a large hydraulic oil tank. The hydraulic power mechanism and the hydraulic oil tank are integrated into the interior of the machine, thereby realizing the miniaturization of the rib stripping and thread rolling machine and enhancing the steel bar clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the rack of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the steel bar clamping mechanism of the utility model;

[0016] Figure 4 This is a structural diagram of the rib stripping and thread rolling mechanism of the utility model;

[0017] Figure 5 This is a structural diagram of the hydraulic power mechanism of the utility model;

[0018] Figure 6 It is a schematic diagram of the work flow of the present utility model.

[0019] In the figure: 1. rib stripping and thread rolling mechanism, 1-1. thread rolling motor, 1-2. reducer, 1-3. machine head, 2. knife expansion mechanism, 3. steel bar clamping mechanism, 3-1. first hydraulic motor, 3-2. vise, 3-3. second hydraulic motor, 3-4. base plate, 3-5. first coupling, 3-6. first transmission shaft, 3-7. second coupling, 3-8. second transmission shaft, 4. radiator, 5. hydraulic power mechanism, 6. hydraulic oil tank, 7. frame, 8. workbench. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that the embodiments are only provided to help understand the present invention and should not be considered as specific limitations of the present invention.

[0021] As attached Figure 1-3As shown, the utility model provides an automatic rib stripping and thread rolling machine, comprising a frame 7, a workbench 8 arranged on the frame 7, and a steel bar clamping mechanism 3 arranged on the workbench 8 for fixing the steel bar to be processed, a rib stripping and thread rolling mechanism 1 for stripping the fixed steel bar and rolling it to make a wire head, and a knife expansion mechanism 2 for expanding the rib stripping knife after the steel bar rib stripping is completed; the steel bar clamping mechanism 3 comprises a base plate 3-4 fixed on the workbench 8, a vise 3-2 arranged in the middle of the base plate 3-4 and having two movable clamps, and two movable clamps arranged at both ends of the base plate 3-4. The first hydraulic motor 3-1 and the second hydraulic motor 3-3 are respectively used to drive the movement of the two movable clamps; the first hydraulic motor 3-1 is a high-speed, low-torque motor, and the second hydraulic motor 3-3 is a low-speed, high-torque motor; the rib stripping and thread rolling mechanism 1 is driven by the head moving hydraulic driver 5-4 and can move back and forth on the workbench 8; the interior of the frame 7 is provided with a hydraulic power mechanism 5 for providing operating power for the head moving hydraulic driver 5-4, the first hydraulic motor 3-1 and the second hydraulic motor 3-3, and a hydraulic oil tank 6 for providing an oil source for the hydraulic power mechanism 5.

[0022] The clamping or opening of the two movable jaws of the vise 3-2 is controlled by the first hydraulic motor 3-1 and the second hydraulic motor 3-3, respectively. Therefore, the hydraulic station of this machine does not need to be equipped with a large hydraulic oil tank, and the hydraulic oil tank 6 can be integrated into the interior of the machine. The first hydraulic motor 3-1 and the second hydraulic motor 3-3 are driven by the hydraulic power mechanism inside the machine. The first hydraulic motor 3-1 has a fast speed and low torque, which can quickly clamp or open the vise 3-2. The second hydraulic motor 3-3 has a high torque and a low speed, which can provide a large torque to firmly fix the steel bars. The combination of the first hydraulic motor 3-1 and the second hydraulic motor 3-3 can make the mechanical clamping of steel bars not only fast but also have a sufficiently large torque (up to 500N.M), which is far superior to pneumatic clamping and electric clamping.

[0023] The two movable jaws of the vise 3-2 are respectively driven by a nut-screw mechanism. The output shaft of the first hydraulic motor 3-1 is connected to the screw of a nut-screw mechanism via the first coupling 3-5 and the first transmission shaft 3-6 in sequence. The output shaft of the second hydraulic motor 3-3 is connected to the screw of another nut-screw mechanism via the second coupling 3-7 and the second transmission shaft 3-8 in sequence. The first coupling 3-5 is an XL2 coupling, and the second coupling 3-7 is an XL3 coupling.

[0024] The peripheral side of the frame 7 is provided with a baffle, and the baffle relative to the hydraulic oil tank 6 is provided with a radiator 4. The excess heat of the hydraulic oil tank 6 is dissipated by the radiator 4 to ensure that the machine can work under high temperature conditions.

[0025] like Figure 4As shown, the rib stripping and thread rolling mechanism 1 comprises a thread rolling motor 1-1, a speed reducer 1-2, and a machine head 1-3, all connected in sequence. The thread rolling motor 1-1 provides the power source for the rib stripping and thread rolling performed by the machine head 1-3. The speed reducer 1-2 reduces the speed of the thread rolling motor 1-1 and increases the torque. The machine head 1-3 is internally equipped with a rib stripping knife and a thread rolling wheel for stripping the ribs and rolling the threads of the steel bars. The workbench 8 is provided with two left and right guide shafts extending in the front-to-back direction. The speed reducer 1-2 is provided with a support slider on each side, each slidably mounted on a corresponding guide shaft. A rack is provided at the bottom of the speed reducer 1-2, and the machine head movement hydraulic driver 5-4 is connected to the rack via a gear train.

[0026] like Figure 5 As shown, the hydraulic power mechanism 5 includes a motor pump group 5-1, a pressure sensor 5-2 and a control valve group 5-3; the motor pump group 5-1 is used to extract oil from the hydraulic oil tank 6, and supply oil to the head moving hydraulic driver 5-4 and the first hydraulic motor 3-1 and the second hydraulic motor 3-3 through the control valve group 5-3 to drive the various mechanisms to operate.

[0027] like Figure 6 As shown, the working process of the utility model is as follows: first, a steel bar to be processed is placed between the two movable clamps of the vise 3-2 of the steel bar clamping mechanism 3, and the steel bar extends to a certain length toward the rib stripping and thread rolling mechanism 1; then, the first hydraulic motor 3-1 is started first, and then the second hydraulic motor 3-3 is started, and the steel bar clamping mechanism 3 fixes the steel bar to be processed to prevent the steel bar from rotating during processing; the machine head moving hydraulic driver 5-4 is started, and the thread rolling motor 1-1 is started, and the rib stripping and thread rolling mechanism 1 is fed toward the steel bar to be processed to achieve Cutting, when the rib stripping length reaches the requirement, the knife expansion mechanism 2 automatically expands the rib stripping knife and stops feeding; after the rib stripping knife expands, the machine head moves the hydraulic driver 5-4 to control the rib stripping rolling mechanism 1 to continue feeding, and the rolling wheel can be used to realize steel bar thread rolling; when the feeding reaches a certain extent and the rolling is completed, the rib stripping rolling mechanism 1 returns to the initial position, and the rib stripping knife is automatically reset at this time; the steel bar clamping mechanism 3 loosens the steel bar after rolling, removes the processed steel bar, and places another steel bar to be processed, and then continues the above process.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic rib stripping and thread rolling machine, comprising a frame (7), a workbench (8) arranged on the frame (7), a steel bar clamping mechanism (3) arranged on the workbench (8) for fixing the steel bar to be processed, a rib stripping and thread rolling mechanism (1) for stripping the ribs of the fixed steel bar and rolling it to produce a thread head, and a knife expansion mechanism (2) for expanding the rib stripping knife after the steel bar rib stripping is completed; characterized in that The steel bar clamping mechanism (3) comprises a base plate (3-4) fixed on the workbench (8), a vise (3-2) arranged in the middle of the base plate (3-4) and having two movable clamps, and a first hydraulic motor (3-1) and a second hydraulic motor (3-3) arranged at two ends of the base plate (3-4) and respectively used to drive the two movable clamps to move; the first hydraulic motor (3-1) is a high-speed, low-torque motor, and the second hydraulic motor (3-3) is a low-speed, high-torque motor; the rib stripping and thread rolling mechanism (1) is driven by a machine head moving hydraulic driver (5-4) and can move forward and backward on the workbench (8); a hydraulic power mechanism (5) for providing operating power to the machine head moving hydraulic driver (5-4), the first hydraulic motor (3-1) and the second hydraulic motor (3-3), and a hydraulic oil tank (6) for providing an oil source for the hydraulic power mechanism (5) are arranged inside the frame (7).

2. The automatic rib stripping and thread rolling machine according to claim 1, characterized in that: The rib stripping and thread rolling mechanism (1) comprises a thread rolling motor (1-1), a reducer (1-2) and a machine head (1-3) connected in sequence, wherein a rib stripping knife and a thread rolling wheel for stripping ribs and thread rolling steel bars are arranged inside the machine head (1-3); two left and right guide shafts are arranged on the workbench (8), and the guide shafts extend in the front-back direction; a support slider is respectively arranged on the left and right sides of the reducer (1-2), and the two support sliders are respectively slidably arranged on the corresponding guide shafts.

3. The automatic rib stripping and thread rolling machine according to claim 2, characterized in that: A rack is provided at the bottom of the reducer (1-2), and the rack extends in the front-back direction. The machine head moving hydraulic driver (5-4) is connected to the rack via a gear set.

4. The automatic rib stripping and thread rolling machine according to claim 1, characterized in that: The two movable clamps of the vise (3-2) are respectively driven by a nut screw mechanism; the output shaft of the first hydraulic motor (3-1) is sequentially connected to the screw of one nut screw mechanism via a first coupling (3-5) and a first transmission shaft (3-6); the output shaft of the second hydraulic motor (3-3) is sequentially connected to the screw of the other nut screw mechanism via a second coupling (3-7) and a second transmission shaft (3-8).

5. The automatic rib stripping thread rolling machine according to claim 1, characterized in that: The hydraulic power mechanism (5) comprises a motor pump group (5-1), a pressure sensor (5-2) and a control valve group (5-3); the motor pump group (5-1) is used to extract oil from a hydraulic oil tank (6) and supply oil to the machine head moving hydraulic driver (5-4) and the first hydraulic motor (3-1) and the second hydraulic motor (3-3) through the control valve group (5-3), thereby driving the various mechanisms to operate.

6. The automatic rib stripping thread rolling machine according to claim 1, characterized in that: A baffle is provided on the peripheral side of the frame (7), and a radiator (4) is provided on the baffle opposite to the hydraulic oil tank (6).

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