Automatic feeding device of steel pipe threading machine

Abstract

An automatic feeding device of a steel pipe threading machine belongs to the technical field of threading machines and comprises a moving seat used for moving along a threading workbench, a support is arranged at one end of the top of the moving seat, a clamping mechanism is arranged at the top end of the support and used for clamping the outer wall of a steel pipe raw material, a photoelectric sensor is arranged at one end of the clamping mechanism, and the photoelectric sensor is used for detecting the outer wall of the steel pipe raw material. And the photoelectric sensor is in signal connection with a control system of the threading machine. Aiming at the problems of low efficiency and poor cutting quality caused by manual feeding of the threading machine during cutting, the device capable of automatically feeding is designed, so that accurate and automatic feeding during steel pipe raw material cutting is realized, a manual feeding mode is replaced, the working efficiency of the threading machine can be remarkably improved, and the cutting quality is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of threading machines, and specifically relates to an automatic feeding device for a steel pipe threading machine. Background Art

[0002] At present, domestic galvanized steel pipe threading machines are mainly semi-automatic or manual equipment. Since the steel pipe needs to be processed into a set length, the raw steel pipe needs to be cut and then manually sent to the threading station between the main head and the auxiliary head of the threading machine. The cutting process mostly relies on manual feeding, which is not only labor-intensive, but also has low construction efficiency. The subjective error of manual labor leads to poor processing quality.

[0003] To sum up, the development of a fully automatic threading machine is of great significance. To realize the automated production of the entire threading machine system, it is necessary to automate the design of each link of the threading machine. This new model is based on this market demand and improves the way of feeding steel pipe raw materials for the threading machine. Utility Model Content

[0004] The invention discloses an automatic feeding device for a steel pipe threading machine, which aims to solve the problem that when the steel pipe raw material of the threading machine is cut, the feeding depends on manual labor, the labor intensity is high, the efficiency is low, and the processing precision is poor, thereby laying a foundation for realizing the automation of the entire threading machine system.

[0005] To achieve the above purpose, the technical solution of this novel invention is:

[0006] An automatic feeding device for a steel pipe threading machine comprises a movable seat for moving along a threading workbench, a bracket is provided at one end of the top of the movable seat, a clamping mechanism is provided at the top of the bracket, the clamping mechanism is used to clamp the outer wall of the steel pipe raw material, a photoelectric sensor is provided at one end of the clamping mechanism, and the photoelectric sensor is connected to the control system signal of the threading machine.

[0007] Preferably, the threading workbench is a cubic frame structure, a rack structure is provided at one end of the upper surface of the threading workbench along the length direction, and a linear guide rail is provided at the other end, a loading bin is provided on one side of the threading workbench, the loading bin is connected to the threading workbench through a loading mechanism, and a lower bin is provided on the other side for collecting processed steel pipes.

[0008] Preferably, the movable seat includes a sliding plate, one end of the bottom of the sliding plate is slidably connected to the linear guide rail through a slider, and the other end is meshedly connected to the rack structure through a gear. A servo motor is provided at the top of the sliding plate with a gear, and the servo motor is connected to the gear transmission through a reducer. The output shaft of the reducer passes through the sliding plate and is rotatably connected to the sliding plate, the end of the output shaft is connected to the gear through a coupling, and the servo motor is electrically connected to the control system through a wire.

[0009] Preferably, the bracket is arranged on the top of the sliding plate above the slider, a mounting plate is fixedly provided on the top of the bracket, and a clamping mechanism is provided on the top of the mounting plate.

[0010] Preferably, the clamping mechanism includes a fixed plate fixed on the top of the mounting plate, a movable plate arranged on one side of the fixed plate and slidably connected to the upper surface of the mounting plate, a cylinder is installed on the upper surface of the mounting plate outside the movable plate, the fixed end of the cylinder is fixedly connected to the mounting plate, and the telescopic end is fixedly connected to the outer surface of the movable plate, and a clamping space is formed between the fixed plate and the movable plate.

[0011] Preferably, one end of the threading workbench is provided with an auxiliary head mechanism and a main head mechanism in sequence from the outside to the inside, and the opposite ends of the main head mechanism and the auxiliary head mechanism are provided with a first rolling plate and a second rolling plate respectively, the top ends of the first rolling plate and the second rolling plate are inclined surfaces inclined downwardly toward one side of the lower silo, the high end of the inclined surface is used to receive the steel pipe raw material conveyed by the loading mechanism, and the low end is used to output the processed steel pipe to the lower silo, and a first groove and a second groove are provided on the inclined surface in sequence from top to bottom, and a first clamp and a second clamp for clamping the steel pipe raw material are respectively provided on the main head mechanism and the auxiliary head mechanism where the outer sides of the first grooves of the first rolling plate and the second rolling plate are located, and a cutting saw blade is provided on one side of the first clamp, and the cutting saw blade is driven by a motor, and the motor is connected to the base of the main head mechanism through a lifting mechanism, and the lifting mechanism and the motor are electrically connected to the control system through wires.

[0012] Preferably, the clamping space, the two first grooves, the first clamp and the second clamp are arranged relatively to each other and are used together to limit or clamp the steel pipe raw material.

[0013] Preferably, the automatic feeding device of the steel pipe threading machine is located on a side of the threading workbench away from the main head mechanism and the auxiliary head mechanism, and the photoelectric sensor is arranged at an end of the fixed plate away from the main head mechanism and is used to detect the steel pipe raw material passing through the clamping space.

[0014] The beneficial effects of the new automatic feeding device for steel pipe threading machine are:

[0015] In order to solve the problem that manual feeding is required during cutting of the threading machine, resulting in low efficiency and poor cutting quality, the present invention designs an automatic feeding device, thereby realizing precise automatic feeding during cutting of steel pipe raw materials, replacing the manual feeding method, which can significantly improve the working efficiency of the threading machine and ensure the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the new model.

[0017] Figure 2 It is a structural schematic diagram of the threading workbench.

[0018] Figure 3 It is a structural schematic diagram of the new type when in use.

[0019] Figure 4 It is a schematic diagram of the local structure of the main head mechanism.

[0020] 1. Sliding plate; 2. Servo motor; 3. Sliding block; 4. Bracket; 5. Cylinder; 6. Moving plate; 7. Fixed plate; 8. Mounting plate; 9. Threading table; 10. Rack structure; 11. Linear guide; 12. Second rolling plate; 121. First groove B; 13. First rolling plate; 131. First groove A; 14. Auxiliary head mechanism; 15. Main head mechanism; 16. Loading mechanism; 17. Loading bin; 18. Unloading bin; 19. First fixture; 20. Cutting saw blade; 21. Lifting mechanism; 22. Hydraulic station; 23. Solenoid valve; 24. Driving motor; 25. Photoelectric sensor; 26. Third fixture. DETAILED DESCRIPTION

[0021] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0022] The following embodiments may be understood as a part of a local structure or method that is expressed separately in the present invention, or may be understood as a combination of the embodiments to explain the connotation of a larger structure or method of the present invention.

[0023] Example 1

[0024] An automatic feeding device for a steel pipe threading machine, such as Figure 1 As shown, it includes a moving seat for moving along the threading workbench 9, a bracket 4 is provided at one end of the top of the moving seat, a clamping mechanism is provided at the top of the bracket 4, the clamping mechanism is used to clamp the outer wall of the steel pipe raw material, a photoelectric sensor 25 is provided at one end of the clamping mechanism, and the photoelectric sensor 25 is connected to the control system signal of the threading machine.

[0025] In this embodiment, the threading workbench can be a threading workbench in the prior art, which needs to satisfy the requirement that the movable seat can move back and forth along its top surface. The movable seat moves on the top surface of the threading workbench to drag the steel pipe to realize the transportation of the steel pipe raw material. The clamping mechanism on the top of the movable seat is used to clamp the steel pipe raw material to prevent the steel pipe raw material from falling off during the feeding process. The photoelectric sensor is used to detect the position of the steel pipe raw material, thereby providing a reference for the position of the clamping mechanism clamping the steel pipe raw material.

[0026] Example 2

[0027] like Figure 2 As shown, the threading workbench 9 is a cubic frame structure, and a rack structure 10 is provided at one end of the upper surface of the threading workbench 9 along the length direction, and a linear guide rail 11 is provided at the other end. Figure 3 As shown, a loading bin 17 is provided on one side of the threading workbench 9 for storing steel pipe raw materials. The loading bin 17 is connected to the threading workbench 9 through a loading mechanism 16, and a lowering bin 18 is provided on the other side for collecting processed steel pipes.

[0028] In this embodiment, the loading bin and the unloading bin are common settings of the threading machine system, wherein the loading mechanism can be a technical structure in the prior art that can realize the loading of steel pipe raw materials. After the steel pipe is processed on the threading workbench, the steel pipe enters the unloading bin. This embodiment provides a threading workbench structure to further illustrate the further structure of the automatic feeding device of the new steel pipe threading machine.

[0029] Example 3

[0030] like Figure 1-3 As shown, the movable seat includes a sliding plate 1, one end of the bottom of the sliding plate 1 is slidably connected to the linear guide 11 through a slider 3, and the other end is meshed and connected to the rack structure 10 through a gear (not shown in the figure). A servo motor 2 is provided at the top of the sliding plate 1 with a gear, and the servo motor 2 is connected to the gear transmission through a reducer. The output shaft of the reducer passes through the sliding plate 1 and is rotatably connected to the sliding plate. The end of the output shaft is connected to the gear through a coupling, and the servo motor is electrically connected to the control system through a wire.

[0031] like Figure 1 As shown, the bracket 4 is arranged on the top of the sliding plate 1 above the slider 3, and a mounting plate 8 is fixedly arranged on the top of the bracket 4, and a clamping mechanism is arranged on the top of the mounting plate 8.

[0032] In this embodiment, the control system can realize precise control of the position of the clamping mechanism by controlling the number of revolutions of the servo motor. Since the number of revolutions of the servo motor can be converted into the rotation angle or number of turns of the gear, and then converted into the distance that the servo motor moves relative to the threading worktable per unit rotation angle, the control system can calculate the relative position of the clamping mechanism based on the initial position of the clamping mechanism and the moving distance. Since the clamping mechanism moves by dragging the steel pipe raw material, the change in relative position, that is, the distance that the steel pipe raw material is pulled outward or moved toward one side of the main and auxiliary head mechanisms, thereby realizing the control of the feed amount of the steel pipe raw material.

[0033] It should be noted that the position of the clamping mechanism or the length of the input steel pipe can also be achieved through commonly used sensor technology, such as setting a distance sensor or a photoelectric sensor. The method of setting the photoelectric sensor can be: photoelectric sensors are respectively set on one side of the main and auxiliary head mechanisms, and the automatic feeding device first pulls the steel pipe raw material backward to the photoelectric sensor on the side of the main head mechanism. When the head of the steel pipe raw material cannot be detected, the servo motor stops to determine the initial position of the steel pipe, and then pushes the steel pipe raw material forward. When the photoelectric sensor on the side of the auxiliary head mechanism detects the head of the steel pipe raw material, it stops moving. At this time, the input steel pipe length is the set steel pipe length. The steel pipe raw material is clamped by the clamp and then cut.

[0034] Example 4

[0035] like Figure 1 As shown, the clamping mechanism includes a fixed plate 7 fixed on the top of the mounting plate 8, a movable plate 6 arranged on one side of the fixed plate 7 and slidably connected to the upper surface of the mounting plate 8, a cylinder 5 is installed on the upper surface of the mounting plate 8 outside the movable plate 6, the fixed end of the cylinder 5 is fixedly connected to the mounting plate 8, and the telescopic end is fixedly connected to the outer surface of the movable plate 6, a clamping space is formed between the fixed plate 7 and the movable plate 6, and the clamping and opening of the clamping space are achieved by the telescopic movement of the cylinder.

[0036] Example 5

[0037] like Figure 3 , 4 As shown, one end of the threading workbench 9 is provided with an auxiliary head mechanism 14 and a main head mechanism 15 in sequence from the outside to the inside, and the opposite ends of the main head mechanism 15 and the auxiliary head mechanism 14 are provided with a first rolling plate 13 and a second rolling plate 12 respectively. The top ends of the first rolling plate 13 and the second rolling plate 12 are inclined surfaces inclined downwardly toward one side of the lower bin 18. The high end of the inclined surface is used to receive the steel pipe raw material conveyed by the feeding mechanism 16, and the low end is used to output the processed steel pipe to the lower bin 18. The first grooves (such as Figure 3 As shown, the first rolling plate 13 is provided with a first groove A131, the second rolling plate 12 is provided with a first groove B121), and a second groove (not marked in the figure, for positioning the steel pipe raw material during threading), and the main head mechanism and the auxiliary head mechanism where the first grooves of the first rolling plate 13 and the second rolling plate 12 are located are respectively provided with a first clamp 19 and a second clamp (not shown in the figure, refer to Figure 4 ), a cutting saw blade 20 is provided on one side of the first clamp, and the cutting saw blade 20 is driven by a motor, and the motor is connected to the base of the main head mechanism 15 through a lifting mechanism 21, and the lifting mechanism and the motor are electrically connected to the control system through wires.

[0038] In this embodiment, a form of implementation of the threading machine is provided, and the main and auxiliary head mechanisms are respectively used for threading the two ends of the cut steel pipe. The technical structure is the prior art and will not be described in detail. This embodiment discloses that the opposite ends of the main and auxiliary head mechanisms are provided with rolling plates, and the first rolling plate and the second rolling plate are used to convey the steel pipe raw material and the cut steel pipe. The position of the first groove is the steel pipe raw material cutting station. At the cutting station, the steel pipe raw material needs to be accurately fed to ensure the accuracy of the cutting position of the steel pipe raw material. The cutting saw blade is driven by a motor, which is the prior art. The lifting mechanism that drives the motor to lift can be a cylinder, a hydraulic cylinder or other existing equipment. The cutting saw blade is driven to lift by the motor lifting, so that the cutting saw blade contacts the steel pipe raw material to achieve cutting or is reset after being separated from the cut steel pipe. The first clamp and the second clamp are used to clamp and fix the steel pipe raw material that has been fed into place. After clamping and fixing, the cutting saw blade is driven to rise by the lifting mechanism, and then the motor is turned on to cut the steel pipe raw material.

[0039] Example 6

[0040] like Figure 3 As shown, the clamping space, the two first grooves (131, 121), the first clamp 19, and the second clamp are arranged relatively to each other and are used together to limit or clamp the steel pipe raw material.

[0041] like Figure 3 As shown, when the feeding mechanism feeds, a steel pipe raw material will slide along the inclined surfaces of the first and second rolling plates and fall into the clamping space, the two first grooves (131, 121), the first clamp 19, and the second clamp at the same time.

[0042] Example 7

[0043] like Figure 1 , 3 As shown, the automatic feeding device of the steel pipe threading machine is located on the side of the threading workbench 9 away from the main head mechanism 15 and the auxiliary head mechanism, and the photoelectric sensor 25 is arranged at one end of the fixed plate 7 away from the main head mechanism 15, and is used to detect the steel pipe raw material passing through the clamping space.

[0044] In this embodiment, when the steel pipe material passes through the clamping space and is carried in the clamping space, the photoelectric sensor detects a signal. At this time, the control system starts the first clamp and the second clamp to clamp the steel pipe material, and then starts the servo motor to move the clamping space to the side away from the main head mechanism. As the mobile clamping mechanism moves, the end of the steel pipe material continuously retracts into the clamping space. When the photoelectric sensor can no longer detect the steel pipe material, the servo motor stops. The control system calculates the relative position of the clamping mechanism according to the method described in Example 3, and then calculates whether the other end of the steel pipe material is located at the set threading position according to the length of the steel pipe. If so, the clamping mechanism is no longer moved. If not, the control system first releases the first clamp and the second clamp, and then the clamping mechanism clamps the end of the steel pipe, and the clamping mechanism continues to move forward or backward through the servo motor. The end of the steel pipe material is finally located at the set threading position by dragging. At this time, the steel pipe material is clamped again by the first clamp and the second clamp, and the lifting mechanism is started to raise the cutting saw blade to the cutting position, and then the motor is started to complete the cutting of the steel pipe material. Alternatively, the feeding length may be controlled by the technique of setting a sensor as exemplified in Example 3.

[0045] Through the above arrangement, the new type realizes accurate and automatic feeding of steel pipe raw materials, replaces the manual feeding method, can significantly improve the working efficiency of the threading machine, and ensure the cutting quality. It should be noted that the structure of the first clamp and the second clamp can refer to the clamping mechanism, and its opening and closing are controlled by the control system.

Claims

1. An automatic feeding device for a steel pipe threading machine, characterized by: It includes a moving seat for moving along a threading workbench, a bracket is provided at one end of the top of the moving seat, a clamping mechanism is provided at the top of the bracket, the clamping mechanism is used to clamp the outer wall of the steel pipe raw material, a photoelectric sensor is provided at one end of the clamping mechanism, and the photoelectric sensor is connected to the control system signal of the threading machine.

2. The automatic feeding device for a steel pipe threading machine according to claim 1, characterized in that: The threading workbench is a cubic frame structure. A rack structure is provided at one end of the upper surface of the threading workbench along the length direction, and a linear guide rail is provided at the other end. A loading bin is provided on one side of the threading workbench, and the loading bin is connected to the threading workbench through a loading mechanism. A lower bin is provided on the other side for collecting processed steel pipes.

3. The automatic feeding device for a steel pipe threading machine according to claim 2, characterized in that: The movable seat includes a sliding plate, one end of the bottom of the sliding plate is slidably connected to the linear guide rail through a slider, and the other end is meshed with a rack structure through a gear. A servo motor is provided at the top of the sliding plate with a gear. The servo motor is connected to the gear transmission through a reducer. The output shaft of the reducer passes through the sliding plate and is rotatably connected to the sliding plate. The end of the output shaft is connected to the gear through a coupling. The servo motor is electrically connected to the control system through a wire.

4. The automatic feeding device for a steel pipe threading machine according to claim 3, characterized in that: The bracket is arranged on the top of the sliding plate above the sliding block, a mounting plate is fixedly arranged on the top of the bracket, and a clamping mechanism is arranged on the top of the mounting plate.

5. The automatic feeding device for a steel pipe threading machine as claimed in claim 4, characterized in that: The clamping mechanism includes a fixed plate fixed on the top of the mounting plate, a movable plate arranged on one side of the fixed plate and slidably connected to the upper surface of the mounting plate, a cylinder is installed on the upper surface of the mounting plate outside the movable plate, the fixed end of the cylinder is fixedly connected to the mounting plate, and the telescopic end is fixedly connected to the outer surface of the movable plate, and a clamping space is formed between the fixed plate and the movable plate.

6. The automatic feeding device for a steel pipe threading machine according to claim 5, characterized in that: One end of the threading workbench is provided with an auxiliary head mechanism and a main head mechanism in sequence from the outside to the inside, and the opposite ends of the main head mechanism and the auxiliary head mechanism are respectively provided with a first rolling plate and a second rolling plate, and the top ends of the first rolling plate and the second rolling plate are inclined surfaces inclined downwardly toward one side of the lower silo, and the high end of the inclined surface is used to receive the steel pipe raw material transported by the loading mechanism, and the low end is used to output the processed steel pipe to the lower silo, and a first groove and a second groove are provided on the inclined surface from top to bottom, and a first clamp and a second clamp for clamping the steel pipe raw material are respectively provided on the main head mechanism and the auxiliary head mechanism where the first grooves of the first rolling plate and the second rolling plate are located outside, and a cutting saw blade is provided on one side of the first clamp, and the cutting saw blade is driven by a motor, and the motor is connected to the base of the main head mechanism through a lifting mechanism, and the lifting mechanism and the motor are electrically connected to the control system through wires.

7. An automatic feeding device for a steel pipe threading machine as claimed in claim 6, characterized in that: The clamping space, the two first grooves, the first clamp and the second clamp are arranged relatively to each other and are used together to limit or clamp the steel pipe raw material.

8. An automatic feeding device for a steel pipe threading machine as claimed in claim 7, characterized in that: The automatic feeding device of the steel pipe threading machine is located on the side of the threading workbench away from the main head mechanism and the auxiliary head mechanism. The photoelectric sensor is arranged at one end of the fixing plate away from the main head mechanism and is used to detect the steel pipe raw material passing through the clamping space.

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