Automatic numerical control pipe twisting machine capable of rotating front and back

Abstract

The automatic numerical control pipe twisting machine capable of rotating front and back comprises two rotating machine head mechanisms and a base, one of the rotating machine head mechanisms is arranged on the base, two linear guide rails are arranged on the upper surface of the base, sliding blocks are arranged on the linear guide rails in a sliding mode, and the sliding blocks are arranged on the linear guide rails in a sliding mode. A first driving mechanism is started through a console to drive a ball screw to rotate, then the distance between the two rotating machine head mechanisms is adjusted, a second driving mechanism is started to drive a first gear to rotate, a second gear rotates to drive a pneumatic chuck to rotate, and the pneumatic chucks of the two rotating machine head mechanisms drive a round pipe workpiece to twist; the first driving mechanism drives the ball screw to rotate to drive the rotating machine head mechanism to move, then the round pipe workpiece is machined, the threaded pipe workpiece is obtained, the whole machining process is precisely controlled through a controller arranged in the control table, and the machining efficiency and flatness of the round pipe are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automatic metal pipe processing equipment, in particular to an automatic numerically controlled pipe twisting machine which rotates back and forth. Background Art

[0002] A pipe twisting machine is a device specifically designed for pipe processing. It achieves spiral deformation of pipes through rotation and automatic tightening. It is widely used in industrial manufacturing, pipeline installation, and welding. Core models include stainless steel round pipe embossing machines and twisting machines, supporting pipes with diameters ranging from φ20 to φ76 mm and thicknesses ranging from 0.5 to 1.2 mm.

[0003] However, the existing tube twisting machines are generally single-head rotating tube twisting machines. Due to the resistance in the torque transmission process, the spiral deformation lines are uneven, the pitch is small at the front and large at the back, which affects the processing accuracy of the workpiece.

[0004] Therefore, it is necessary to provide an automatic numerical control tube twisting machine that rotates back and forth to solve the above-mentioned technical problems. Summary of the Invention

[0005] The object of the present invention is to provide an automatic numerically controlled tube twisting machine that rotates back and forth to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic CNC tube twisting machine that rotates back and forth, comprising a rotating head mechanism and a base, wherein two rotating head mechanisms are provided, one of the rotating head mechanisms is provided on the base, two linear guide rails are provided on the upper surface of the base, sliders are provided on the linear guide rails for sliding, and slides are provided on the two slides, and the other rotating head mechanism is provided on the slide, a motor mounting seat is provided on the upper surface of the base, a first driving mechanism is provided on the side wall of the motor mounting seat, a first bearing seat is provided on the other side wall of the motor mounting seat, a ball screw is provided in the first bearing seat for rotation through the bearing, a coupling is provided at the output end of the first driving mechanism and one end of the ball screw, a threaded hole is provided at the lower end of the slide for the ball screw to pass through and rotate with it, an arrow indicator plate is provided on the other side of the slide, a stainless steel ruler is provided on the back of the base, the first driving mechanism and the two second driving mechanisms are electrically connected to the console, a controller and a touch screen are provided in the console, and the controller adopts a high-precision control system.

[0007] As a preferred technical solution of the present invention, the rotating head mechanism includes a frame, second bearing seats are provided at both ends of the middle of the frame, bearings are clamped in the second bearing seats, connecting shafts are clamped in the two bearings, flanges are provided at the ends of the connecting shafts through key connections, a pneumatic chuck is provided on the side walls of the flanges, a chuck fixing bracket is provided on the side walls of the frame, the chuck fixing bracket supports and fixes the pneumatic chuck, a second gear is provided on the connecting shaft through a key connection sleeve, a motor mounting plate is provided on the top of the frame, a motor mounting plate bracket is provided on the motor mounting plate, a second driving mechanism is provided on the motor mounting plate bracket, the output end of the second driving mechanism passes through the side wall of the motor mounting plate and extends to its outside, the output end of the second driving mechanism is provided with a first gear, and the first gear and the second gear are engaged for transmission.

[0008] As a preferred technical solution of the present invention, the side wall of the second bearing seat is clamped with a hole clamp, the connecting shaft is a stepped shaft structure, a spacer sleeve is arranged between the flange and the bearing, the spacer sleeve is arranged on the connecting shaft, the connecting shaft is clamped with a first shaft clamp, the first shaft clamp limits the flange, the connecting shaft is clamped with a second shaft clamp, the second shaft clamp limits the second gear, the side wall of the first gear is provided with a retaining ring, the retaining ring is screwed into the end of the second driving mechanism to lock and fix it, and the retaining ring limits and fixes the first gear.

[0009] As a preferred technical solution of the present invention, a protective cover is provided on the frame, and the protective cover covers the first gear.

[0010] As a preferred technical solution of the present invention, a liner is provided at one end of the upper surface of the base, wherein one of the rotating head mechanisms is provided on the liner, a long hole is provided in the middle of the upper surface of the base, the two linear guide rails are symmetrically distributed about the long hole, and the ball screw is located directly above the long hole.

[0011] As a preferred technical solution of the present invention, a nut mounting plate is provided on the side wall of the skateboard, and two proximity switches are provided at the lower end of the base, and the proximity switches are located directly below the long strip hole.

[0012] As a preferred technical solution of the present invention, a drag chain mounting plate is provided on one side of the skateboard, a drag chain is provided on the drag chain mounting plate, a fixing plate is provided on the front of the base, and a drag chain groove is provided on the top of the fixing plate.

[0013] As a preferred technical solution of the present invention, both the first driving mechanism and the second driving mechanism are composed of a servo motor and a reducer.

[0014] As a preferred technical solution of the present invention, a plurality of feet are provided at the bottom of the base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention relates to an automatic CNC tube twisting machine that rotates back and forth. The present invention sets parameters for the density and length of the spiral pattern through a high-precision control system of a console and servo motors of a first drive mechanism and a second drive mechanism. The first drive mechanism is then started to drive the ball screw to rotate, thereby adjusting the distance between the two rotating head mechanisms, so as to facilitate the twisting and processing of round tubes of different lengths into threaded tubes. After adjusting the distance, the round tube to be processed is installed between two pneumatic chucks, and the round tube is automatically tightened and fixed by the pneumatic chucks. The second drive mechanism is started to drive the first gear to rotate, and the first gear and the second gear are meshed and transmitted to connect. As the second gear rotates, the shaft drives the pneumatic chuck to rotate, and the pneumatic chucks of the two rotating head mechanisms drive the round tube workpiece to twist. At the same time, the first drive mechanism drives the ball screw to rotate and drives the rotating head mechanism to move, thereby processing the round tube workpiece to obtain a threaded tube workpiece. The entire processing process is precisely controlled by the controller set in the console to ensure the processing efficiency and flatness of the round tube. It adopts front and rear independent rotating heads, equipped with servo motors and high-precision control systems. The density and length of the spiral pattern can be controlled by parameter settings to ensure the processing accuracy of the spiral pattern of the round tube, so that the spiral deformation pattern of the processed round tube workpiece is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 This is a front view of the overall structure of the present invention;

[0019] Figure 2 It is a left side view of the overall structure of the present invention;

[0020] Figure 3 It is a top view of the overall structure of the present invention;

[0021] Figure 4 It is a cross-sectional view taken along the EE direction of the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0023] Figure 6 This is a front view of the rotating head mechanism structure of the present invention;

[0024] Figure 7 This is a left side view of the rotary head mechanism structure of the present invention;

[0025] Figure 8 It is a top view of the rotating head mechanism structure of the present invention.

[0026] In the figure: 1. Rotating head mechanism; 101. Pneumatic chuck; 102. First shaft clamp; 103. Flange; 104. Spacer; 105. Second shaft clamp; 106. Protective cover; 107. Retaining ring; 108. First gear; 109. Second gear; 110. Frame; 111. Connecting shaft; 112. Hole clamp; 113. Bearing; 114. Second bearing seat; 115. Chuck fixing bracket; 116. Motor mounting plate; 117. Motor mounting plate bracket; 118. Second driving mechanism; 2. Base; 3. Pad; 4. First driving mechanism; 5. Mounting seat; 6. Coupling; 7. First bearing seat; 8. Linear guide; 9. Ball screw; 10. Nut mounting plate; 11. Proximity switch; 12. Drag chain; 13. Drag chain mounting plate; 14. Drag chain slot; 15. Arrow indicator plate; 16. Stainless steel ruler; 17. Foot. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described below with reference to the accompanying drawings. In the process, to ensure clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0028] In addition, the following terms are defined based on the functions of the present invention and may vary depending on the intentions or practices of the user or operator. Therefore, these terms are defined based on the entire content of this specification.

[0029] like Figures 1 to 8As shown, an automatic CNC tube twisting machine that rotates forward and backward includes a rotating head mechanism 1 and a base 2. The bottom of the base 2 is provided with multiple feet 17, which support the base 2 through the multiple feet 17 and can be installed and fixed to the ground. A lining block 3 is provided at one end of the upper surface of the base 2. There are two rotating head mechanisms 1, one of which is provided on the lining block 3. A long hole is provided in the middle of the upper surface of the base 2. Two linear guide rails 8 are provided on the upper surface of the base 2. The two linear guide rails 8 are symmetrically distributed about the long hole. A slider is provided on the linear guide rail 8. A slide is provided on the two slides. The other rotating head mechanism 1 is provided on the slide. 2 is provided with a motor mounting seat 5 on the upper surface, a first driving mechanism 4 is provided on the side wall of the motor mounting seat 5, and a first bearing seat 7 is provided on the other side wall of the motor mounting seat 5. A ball screw 9 is provided in the first bearing seat 7 through the bearing. The ball screw 9 is located just above the elongated hole. A coupling 6 is provided between the output end of the first driving mechanism 4 and one end of the ball screw 9. The ball screw 9 is driven to rotate by the first driving mechanism 4. A threaded hole is provided at the lower end of the slide for the ball screw 9 to pass through and rotate with the thread. The ball screw 9 drives the rotating head mechanism 1 to slide along the linear guide rail 8, thereby realizing the adjustment of the distance between the two rotating head mechanisms 1, which is convenient for torsional deformation of round tubes of different lengths.

[0030] like Figure 1 As shown, the side wall of the skateboard is provided with a nut mounting plate 10, and the lower end of the base 2 is provided with two proximity switches 11, and the proximity switches 11 are located directly below the long hole. The nut mounting plate 10 cooperates with the two proximity switches 11 to limit the front and rear positions of the rotating head mechanism 1, effectively preventing the rotating head mechanism 1 from detaching from the linear guide rail 8, thereby playing a protective role.

[0031] like Figure 2 As shown, a drag chain mounting plate 13 is provided on one side of the skateboard, a drag chain 12 is provided on the drag chain mounting plate 13, a fixed plate is provided on the front of the base 2, a drag chain groove 14 is provided on the top of the fixed plate, and the drag chain groove 14 is for the drag chain mounting plate 13 to slide therein, an arrow indicator plate 15 is provided on the other side of the skateboard, a stainless steel ruler 16 is provided on the back of the base 2, and the stainless steel ruler 16 is engraved with dimensions. When the first driving mechanism 4 drives the ball screw 9 to rotate, the rotating head mechanism 1 slides and drives the arrow indicator plate 15 to slide. The distance moved is measured according to the arrow indication of the arrow indicator plate 15 in combination with the stainless steel ruler 16, and the distance moved by the rotating head mechanism 1 can be viewed intuitively.

[0032] like Figures 6 to 8As shown, the rotating head mechanism 1 includes a frame 110, and second bearing seats 114 are provided at both ends of the middle of the frame 110. A bearing 113 is clamped in the second bearing seat 114, and a hole card 112 is clamped on the side wall of the second bearing seat 114. The bearing 113 is limited by the hole card 112. A connecting shaft 111 is clamped in the two bearings 113. The connecting shaft 111 is a stepped shaft structure. The end of the connecting shaft 111 is provided with a flange 103 through a key connection. The flange 103 is connected to the shaft A spacer sleeve 104 is provided between the bearings 113, and the spacer sleeve 104 is sleeved on the connecting shaft 111. The connecting shaft 111 is clamped with a first shaft clamp 102, and the flange 103 is limited by the first shaft clamp 102. The side wall of the flange 103 is provided with a pneumatic chuck 101, and the round tube workpiece is clamped and fixed by the pneumatic chuck 101. The side wall of the frame 110 is provided with a chuck fixing bracket 115, and the chuck fixing bracket 115 supports and fixes the pneumatic chuck 101. The key connection sleeve is provided with a second gear 109, and the connecting shaft 111 is clamped with a second shaft clamp 105, and the second gear 109 is limited by the second shaft clamp 105. A motor mounting plate 116 is provided on the top of the frame 110, and a motor mounting plate bracket 117 is provided on the motor mounting plate 116. A second driving mechanism 118 is provided on the motor mounting plate bracket 117. The output end of the second driving mechanism 118 passes through the side wall of the motor mounting plate 116 and extends to the outside thereof. The second driving mechanism 118 A first gear 108 is provided at the output end of 8, and a retaining ring 107 is provided on the side wall of the first gear 108. The retaining ring 107 is screwed into the end of the second driving mechanism 118 to lock and fix it. The first gear 108 is limited and fixed by the retaining ring 107. The first gear 108 and the second gear 109 are engaged for transmission. A protective cover 106 is provided on the frame 110, and the protective cover 106 covers the first gear 108 to protect the safety of the staff and prevent accidents caused by accidental touch by the staff.

[0033] like Figure 5As shown, the first drive mechanism 4 and the second drive mechanism 118 are both composed of a servo motor and a reducer. The first drive mechanism 4 drives the ball screw 9 to rotate, thereby adjusting the distance between the two rotating head mechanisms 1, so as to facilitate the twisting and processing of round tubes of different lengths into threaded tubes. The second drive mechanism 118 drives the first gear 108 to rotate, and the first gear 108 and the second gear 109 are engaged and transmitted. The connecting shaft 111 drives the pneumatic chuck 101 to rotate as the second gear 109 rotates, and the pneumatic chuck 101 of the two rotating head mechanisms 1 drives the round tube workpiece to twist. At the same time, the first drive mechanism 4 drives the ball screw 9 to rotate and drives the rotating head mechanism 1 to move, thereby processing the round tube workpiece to obtain a threaded tube workpiece. The first drive mechanism 4 and the two second drive mechanisms 118 are all electrically connected to the console. A controller and a touch screen are set in the console to control and operate the entire equipment. The controller adopts a high-precision control system. The density and length of the spiral pattern can be controlled by parameter setting through the servo motor and the high-precision control system to ensure processing efficiency and flatness.

[0034] The specific implementation method is to set the parameters of the density and length of the spiral pattern through the high-precision control system of the console and the servo motors of the first drive mechanism 4 and the second drive mechanism 118, and then start the first drive mechanism 4 to drive the ball screw 9 to rotate, thereby adjusting the distance between the two rotating head mechanisms 1, so as to facilitate the twisting and processing of round tubes of different lengths into threaded tubes. After adjusting the distance, the round tube to be processed is installed between the two pneumatic chucks 101, and the round tube is automatically tightened and fixed by the pneumatic chuck 101, and the second drive mechanism 118 is started to drive the first gear 108 to rotate, and the first gear 108 and the second gear 109 are engaged and transmitted, and the connecting shaft 111 rotates with the rotation of the second gear 109 to drive the pneumatic chuck 101 to rotate, and the pneumatic chuck 101 of the two rotating head mechanisms 1 drives the round tube workpiece to be twisted. At the same time, the first The driving mechanism 4 drives the ball screw 9 to rotate and drives the rotating head mechanism 1 to move, thereby processing the round tube workpiece to obtain a threaded tube workpiece. The entire processing process is precisely controlled by the controller set in the console to ensure the processing efficiency and flatness of the round tube, so that the spiral deformation pattern of the processed round tube workpiece is uniform. The arrow indicator plate 15 and the stainless steel ruler 16 can clearly observe the distance moved by the rotating head mechanism 1, and then detect whether the operation of the equipment meets the set standards. The nut mounting plate 10 and the two proximity switches 11 are used to limit the front and rear positions of the rotating head mechanism 1, effectively preventing the rotating head mechanism 1 from disengaging from the linear guide rail 8, which plays a protective role. It adopts front and rear independent rotating heads, equipped with a servo motor and a high-precision control system. The density and length of the spiral pattern can be controlled by parameter setting to ensure the processing accuracy of the spiral pattern of the round tube.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic CNC tube twisting machine that rotates back and forth, characterized by: The invention comprises a rotating head mechanism (1) and a base (2), wherein two rotating head mechanisms (1) are provided, wherein one of the rotating head mechanisms (1) is provided on the base (2), and two linear guide rails (8) are provided on the upper surface of the base (2), wherein sliders are provided on the linear guide rails (8), and slide plates are provided on the two sliders, and the other rotating head mechanism (1) is provided on the slide plate, and a motor mounting seat (5) is provided on the upper surface of the base (2), and a first driving mechanism (4) is provided on the side wall of the motor mounting seat (5), and a first bearing seat ( 7), a ball screw (9) is provided in the first bearing seat (7) for rotation through the bearing, a coupling (6) is provided between the output end of the first drive mechanism (4) and one end of the ball screw (9), a threaded hole is provided at the lower end of the slide for the ball screw (9) to pass through and rotate with the thread, an arrow indicator plate (15) is provided on the other side of the slide, a stainless steel ruler (16) is provided on the back of the base (2), the first drive mechanism (4) and the two second drive mechanisms (118) are electrically connected to a control console, a controller and a touch screen are provided in the control console, and the controller adopts a high-precision control system.

2. The automatic CNC tube twisting machine with forward and backward rotation according to claim 1, characterized in that: The rotating head mechanism (1) comprises a frame (110), a second bearing seat (114) is provided at both ends of the middle portion of the frame (110), a bearing (113) is clamped in the second bearing seat (114), a connecting shaft (111) is clamped in the two bearings (113), a flange (103) is provided at the end of the connecting shaft (111) through a key connection, a pneumatic chuck (101) is provided on the side wall of the flange (103), a chuck fixing bracket (115) is provided on the side wall of the frame (110), and the chuck fixing bracket (115) supports and fixes the pneumatic chuck (101). A second gear (109) is provided on the connecting shaft (111) through a key connection sleeve, a motor mounting plate (116) is provided on the top of the frame (110), a motor mounting plate bracket (117) is provided on the motor mounting plate (116), a second driving mechanism (118) is provided on the motor mounting plate bracket (117), an output end of the second driving mechanism (118) passes through the side wall of the motor mounting plate (116) and extends to the outside thereof, a first gear (108) is provided on the output end of the second driving mechanism (118), and the first gear (108) and the second gear (109) are meshed for transmission.

3. The automatic CNC tube twisting machine with forward and backward rotation according to claim 2, characterized in that: The side wall of the second bearing seat (114) is clamped with a hole clamp (112); the connecting shaft (111) is a stepped shaft structure; a spacer sleeve (104) is provided between the flange (103) and the bearing (113); the spacer sleeve (104) is sleeved on the connecting shaft (111); a first shaft clamp (102) is clamped on the connecting shaft (111); the first shaft clamp (102) limits the flange (103); a second shaft clamp (105) is clamped on the connecting shaft (111); the second shaft clamp (105) limits the second gear (109); a retaining ring (107) is provided on the side wall of the first gear (108); the retaining ring (107) is locked and fixed by screwing into the end of the second driving mechanism (118); the retaining ring (107) limits and fixes the first gear (108).

4. The automatic CNC tube twisting machine with forward and backward rotation according to claim 1, characterized in that: A protective cover (106) is provided on the frame (110), and the protective cover (106) covers the first gear (108).

5. The automatic CNC tube twisting machine with forward and backward rotation according to claim 1, characterized in that: A liner (3) is provided at one end of the upper surface of the base (2), one of the rotating head mechanisms (1) is provided on the liner (3), a long hole is provided in the middle of the upper surface of the base (2), the two linear guide rails (8) are symmetrically distributed about the long hole, and the ball screw (9) is located directly above the long hole.

6. The automatic numerical control tube twisting machine with forward and backward rotation according to claim 5, characterized in that: The side wall of the slide is provided with a nut mounting plate (10), and the lower end of the base (2) is provided with two proximity switches (11), and the proximity switches (11) are located directly below the long strip hole.

7. The automatic CNC tube twisting machine with forward and backward rotation according to claim 1, characterized in that: A drag chain mounting plate (13) is provided on one side of the slide plate, a drag chain (12) is provided on the drag chain mounting plate (13), a fixing plate is provided on the front of the base (2), and a drag chain groove (14) is provided on the top of the fixing plate.

8. The automatic numerical control tube twisting machine with forward and backward rotation according to claim 1, characterized in that: The first drive mechanism (4) and the second drive mechanism (118) are both composed of a servo motor and a reducer.

9. The automatic numerical control tube twisting machine with forward and backward rotation according to claim 1, characterized in that: A plurality of feet (17) are provided at the bottom of the base (2).

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