A full-automatic round pipe pressing and cutting integrated machine

Abstract

The present application belongs to the technical field of automatic production, pipe cutting and profiling tool, and specifically relates to a full-automatic round pipe profiling and cutting all-in-one machine. The machine comprises a feeding device, a fixed-distance conveying device, a die body and a discharging device. The present application proposes a method and equipment for full-automatic production and one-time clamping to complete profiling and cutting. Since the profiling and cutting can be completed at the same position due to one-time clamping, the accuracy and consistency of molding can be ensured, thereby improving the quality of finished products. Through the use of the method and equipment, full-automatic production can be realized, and the two processes of profiling and cutting can be completed through one-time clamping of the round pipe, thereby improving the production efficiency. In general, the present application provides a new method and equipment for full-automatic round pipe profiling and cutting, which makes the operation more efficient and accurate and can ensure the quality of finished products. This technology can be widely applied in fields requiring round pipe profiling and cutting, such as guardrail handrails, and provides a better solution for the production of related industries.

Description

TECHNICAL FIELD

[0001] The present application relates to a full-automatic round pipe molding and cutting integrated machine, belonging to the technical field of automatic production, pipe cutting and molding tool. BACKGROUND

[0002] Steel pipe T-joint is commonly used in engineering field. Welding is needed at the T-joint to connect and fix. In order to facilitate welding, ensure welding quality and appearance requirements, the end face of the pipe below the T-joint needs to be molded into a round rectangular shape to increase the contact area at the joint. For example, the T-joint of the guardrail handrail needs to be molded into a round rectangular shape to facilitate welding. Such products have a large demand in the market. The current blanking technology mainly involves sawing the pipe first and then using a press to mold the end of the pipe. However, this process has some problems. First, the production efficiency of this process is low. Sawing and molding need to be operated twice, which leads to low production efficiency. Second, the quality of the finished product is difficult to guarantee. Since sawing and molding are operated separately, the accuracy and consistency of the operation are difficult to control, leading to uneven quality of the finished product.

[0003] In order to solve the problems of low production rate and poor quality in round pipe molding and cutting, the present application provides a new method and device. The present application aims to realize full-automatic production process and complete the molding and cutting processes in one clamping, thereby improving production efficiency and product quality. Specifically, the present application provides a method and device for full-automatic production process and one-time clamping to complete molding and cutting. Since molding and cutting can be completed at the same position due to one-time clamping, the accuracy and consistency of the molding can be ensured, thereby improving the quality of the finished product. By using this method and device, automatic feeding, distance conveying, automatic cutting and automatic unloading under the control of the control system can be realized, and the molding and cutting processes can be completed in one clamping, thereby greatly improving the production efficiency. In summary, the present application provides a new full-automatic round pipe molding and cutting method and device, which makes the operation more efficient and accurate, and can guarantee the quality of the finished product. This technology can be widely used in various fields requiring round pipe molding and cutting, such as guardrail handrails, etc., providing a better solution for the production of related industries. SUMMARY

[0004] The traditional round tube round rectangular end face production process is sawing machine blanking and then press machine molding, which not only has poor molding quality and low efficiency, but also the traditional round tube cutting die only has cutting function and cannot complete the molding and cutting two processes by one clamping, and has low automation degree. The main problem solved by the present application is to provide a full-automatic round tube molding and cutting integrated machine which can complete the molding and cutting two processes by one clamping. After the batch of round tubes are placed on the tray, the round tubes enter the trough under the action of gravity, the trough is driven to rotate by a certain angle by a trough stepping motor, the round tubes in the trough are sent to the feeding pneumatic clamping jaw and V-shaped seat, the feeding pneumatic clamping jaw clamps the end of the round tube, the walking stepping motor drives the feeding pneumatic clamping jaw to move forward according to the input size command through the bevel gear and bevel rack transmission, the forward distance is fed back to the control system by the grating ruler reading head, when reaching the specified position, the control system sends a stop command to the walking stepping motor, and the walking stepping motor stops running, thus forming a high-precision full-closed loop control. The proximity switch sensor on both sides of the feeding frame prevents the conveying module from colliding out of control, then the pressing cylinder and the unloading pneumatic clamping jaw press the round tube, the molding hydraulic cylinder drives the slide cutter to mold the round tube, then the cutting hydraulic cylinder drives the upper cutter to descend and cooperate with the slide cutter to cut the molded part of the round tube, and the unloading stepping motor rotates a specified number of turns to drive the unloading pneumatic clamping jaw to move forward to the unloading position through the lead screw transmission, and the round tube product falls after the unloading pneumatic clamping jaw is opened.

[0005] The technical scheme for solving the above technical problems is as follows: a mold body is provided, two U-shaped supports are installed on the right front of the mold body, a channel steel support is installed above the U-shaped supports, a discharging linear guide rail is below the channel steel support, two discharging slide blocks are below the discharging linear guide rail, a seat plate is below the discharging slide blocks, two discharging pneumatic clamping jaws are below the seat plate, a ball screw nut is installed on the side of the seat plate, a lead screw is inside the ball screw nut, bearing seats are installed at both ends of the lead screw, a discharging stepping motor is in front of the lead screw, a feeding frame is installed behind the mold body, a drag chain is installed above the feeding frame, two proximity switch sensors are on the side of the drag chain, two symmetrical conveying linear guide rails are on the side of the proximity switch sensors, a bevel rack is on the side of the conveying linear guide rails, a grating ruler is above the bevel rack, a conveying module is above the grating ruler, two symmetrical square tube supports are installed on the side of the feeding frame, bearing seat plates and trays are installed above the square tube supports, a trough stepping motor is installed behind the bearing seat plates, and a trough is installed in front of the bearing seat plates.

[0006] The mold comprises a cutting-off hydraulic cylinder, a top plate below the cutting-off hydraulic cylinder, guide columns on four corners of the top plate, a lower mold plate below the guide columns, a pressing cylinder mounted on the lower mold plate, an upper mold plate with guide sleeves, an upper knife seat fixed in the middle of the upper mold plate, an upper cutting knife inlaid in the upper knife seat, a pressing round pipe below the upper cutting knife, a pressing plate outside the upper cutting knife, a cover plate below the upper mold plate, a mold body below the cover plate, pressing hydraulic cylinders on two sides of the mold body, an upper guide rail below the middle of the cover plate, an adjusting plate and a side guide rail in turn from top to bottom in front of the upper guide rail and fixed horizontally by adjusting screw B and adjusting screw A respectively, an adjusting plate and a threaded plate in turn from top to bottom at the rear of the upper guide rail and fixed horizontally by adjusting screw A, two symmetrically arranged slider cutting knives directly below the upper guide rail, a lower guide rail directly below the slider cutting knives, the same arrangement of the lower guide rail as the upper guide rail, a lower mold plate below the lower guide rail, a straight-through type pressing injection oil cup busbar mounted on one side of the lower mold plate, a bottom frame below the lower mold plate, a V-shaped seat mounted on the upper left of the bottom frame, and a material blocking plate and a hydraulic station in turn from top to bottom inside the bottom frame.

[0007] The conveying module comprises a feeding pneumatic clamping jaw, a conveying module shell below the feeding pneumatic clamping jaw, a walking stepping motor inside the conveying module shell, a bevel gear below the walking stepping motor, and a conveying module slider below the conveying module shell.

[0008] The trough comprises a trough wheel and a rotating shaft, and the rotation of the trough along the shaft can ensure the stability of feeding.

[0009] The V-shaped seat comprises a V-shaped block A, an angle steel, and a V-shaped block B.

[0010] The number of the slider cutting knives is two, the pressing plate A and the lower cutting knife are symmetrically arranged along the partition plate symmetric plane in turn, and are fastened by bolts.

[0011] The full-automatic round pipe pressing and cutting all-in-one machine can work in full-automatic mode or in point mode, and can continuously produce in full-automatic mode.

[0012] The walking stepping motor (201) and the scale grating reading head (202) and the scale grating (9) constitute a full-closed loop control by the bevel gear (203) and the bevel gear (13) transmission, and the conveying module (2) can be accurately controlled.

[0013] The contact part of the lower cutting knife with the round pipe is in a stepped structure with the radius of the corner increasing from inside to outside, so as to reduce the invalid pressing area.

[0014] The upper guide rail, the slider cutting knife, and the lower guide rail are all provided with oil guide grooves for facilitating the passing of lubricating grease.

[0015] The beneficial effects of the present application are:

[0016] 1. Full automatic production under the control of the control system, including: automatic feeding, fixed-distance conveying, profile cutting, automatic unloading, and the cutting length can be changed.

[0017] 2. Automatic feeding can be carried out through the tray and the trough, the round pipe falls into the trough due to the action of gravity in the tray, and the trough step motor drives the trough to rotate through a certain step angle to send the round pipe into the feeding pneumatic clamp and the V-shaped seat through the action of gravity and centrifugal force.

[0018] 3. The walking step motor and the grating ruler form a full closed loop control, which ensures the accuracy of the round pipe profile cutting position, and after the feeding pneumatic clamp clamps once, the end round pipe is sent to the unloading pneumatic clamp to send out the round pipe after completing the whole profile cutting work of this round pipe. One-time clamping of a round pipe ensures that the profile surface is on the same horizontal plane.

[0019] 4. After the round pipe reaches the specified position, the compression cylinder will compress the round pipe on the V-shaped seat, which plays a role in circumferential positioning of the round pipe, and the V-shaped seat ensures high circumferential repeat positioning accuracy.

[0020] 5. It can complete the two processes of round pipe profile cutting and cutting under the premise of one-time clamping, and has the advantages of high forming quality, simple process and convenient operation.

[0021] 6. The sliding block cutter adopts an assembled structure, and the sliding block cutter comprises: pressure plate A and lower cutter which are symmetrically arranged in sequence, a partition plate in the middle, and then fastened by a connecting bolt pair. The advantage is that the lower cutter blade can be ground after dulling, and the lower cutter gap can be adjusted according to the thickness of the partition plate. The lower cutter is made of alloy tool steel and is heat treated to ensure sufficient strength, stiffness and wear resistance. The contact part of the lower cutter and the round pipe adopts a stepped structure with increasing radius from inside to outside, which aims to reduce the invalid profile area while ensuring the strength and stiffness of the lower cutter.

[0022] 7. The upper guide rail and the side guide rail; the lower guide rail and the side guide rail are adjustable guide rails, which can rely on the locking screw to adjust the gap to compensate for the wear amount generated during use.

[0023] 8. The upper guide rail and the lower guide rail opposite the mold body can rely on the positioning plate and the locking screw to make micro horizontal adjustment to compensate for the machining error and the wear amount generated during use.

[0024] 9. The design of the upper cutting blade's shape and thickness ensures strength and rigidity while preventing pipe wall collapse and deformation during punching. The blade tip angle Φ is 40°-50°, and the arc R is the blade width. The main purpose is to ensure the strength and rigidity of the upper cutting blade, so that the cutting stress generated by the upper cutting blade during pipe cutting always points towards the outer surface of the pipe, thereby reducing pipe wall collapse during punching and cutting. Furthermore, the upper cutting blade is made of high-speed steel. Due to the large friction with the pipe wall material during shearing, the surface roughness value is minimized to reduce punching force, ensure the quality of the cut end face, and reduce pipe deformation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a fully automatic round tube forming and cutting integrated machine according to this application;

[0026] Figure 2 for Figure 1 The front view;

[0027] Figure 3 This is a sectional view of the model.

[0028] Figure 4 for Figure 2 The left view;

[0029] Figure 5 This is a schematic diagram of the upper cutter and the slider cutter pressing and cutting a round tube;

[0030] Figure 6 This is a schematic diagram of the automatic feeding principle.

[0031] Figure 7 This is a schematic diagram showing the positions of the material trough, V-shaped seat, and clamping cylinder.

[0032] Figure 8 This is a schematic diagram of the slider cutter.

[0033] The reference signs are recorded as follows: die body 1, cutting hydraulic cylinder 101, top plate 102, guide column 103, upper die plate 104, cover plate 105, die body 106, adjusting screw A 107, adjusting screw B 108, lower die plate 109, material blocking plate 110, hydraulic station 111, bottom frame 112, large nut 113, upper knife seat 114, screw 115, pressing plate 116, V-shaped seat 117, V-shaped block A 11701, angle steel 11702, V-shaped block B 11703, adjusting plate 118, threaded plate 119, upper guide rail 120, side guide rail 121, lower guide rail 122, profile hydraulic cylinder 123, straight-through type pressure injection oil cup busbar 124, pressing air cylinder 125, upper cutting knife 126, sliding block cutting knife 127, profiled pipe 128, pressing plate A 12701, lower cutting knife 12702, partition plate 12703, connecting bolt pair 12704, conveying module 2, walking stepping motor 201, grating ruler reading head 202, helical gear 203, conveying module sliding block 204, conveying module shell 205, feeding pneumatic clamping jaw 206, rectangular tube support 3, material disc 4, bearing seat plate 5, material groove stepping motor 6, material groove 7, groove wheel 701, rotating shaft 702, anti-collision block 8, grating ruler 9, feeding frame 10, proximity switch sensor 11, conveying linear guide rail 12, helical rack 13, drag chain 14, U-shaped support 15, channel steel support 16, ball screw nut 17, discharging sliding block 18, seat plate 19, discharging pneumatic clamping jaw 20, lead screw 21, bearing seat 22, discharging stepping motor 23, discharging linear guide rail 24. DETAILED DESCRIPTION

[0034] The principles and features of the present application are described below in combination with the drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0035] Reference Figures 1-2The utility model provides an automatic round pipe moulding cutting off integrated machine, including mould body (1), two U type supports (15) are installed to mould body (1) right front, U type support (15) top installs channel steel support (16), and channel steel support (16) below is unloading linear guide (24), and unloading linear guide (24) below is two unloading sliding block (18), and unloading sliding block (18) below is seat board (19), and seat board (19) below is two unloading pneumatic clamping jaw (20), and seat board (19) side installs ball screw nut (17), and ball screw nut (17) inside is screw (21), and screw (21) both ends install bearing seat (22), and screw (21) front is unloading step motor (23), and mould body (1) rear installs feeding frame (10), and feeding frame (10) top installs tow chain (14), and tow chain (14) side is two proximity switch sensors (11), and proximity switch sensor (11) side is two symmetrical arrangement's conveying linear guide (12), and conveying linear guide (12) side is bevel gear (13), and bevel gear (13) side is scale grating (9), and scale grating (9) top is conveying module (2), and feeding frame (10) side installs two symmetrical arrangement's square tube support (3), and square tube support (3) top installs bearing seat board (5) and tray (4) respectively, and bearing seat board (5) rear installs material groove step motor (6), and bearing seat board (5) front installs material groove (7).

[0036] Referring to Figure 3 、 Figure 5 、 Figure 6The mold body (1) includes a cutting hydraulic cylinder (101), a top plate (102) below the cutting hydraulic cylinder (101), guide pillars (103) installed at the four corners of the top plate (102), a lower template (109) below the guide pillars (103), a clamping cylinder (125) installed on the lower template (109), the guide pillars are sleeved on the upper template (104) with guide sleeves, and an upper knife holder (114) is fixed in the middle of the upper template (104). An upper cutter (126) is embedded inside. Below the upper cutter (126) is a forming round tube (128). The upper cutter (126) is covered by a pressure plate (116) and then pressed by screws (115). Below the upper template (104) is a cover plate (105). Below the cover plate (105) is the mold body (106). On both sides of the mold body (106) are forming hydraulic cylinders (123). Below the middle of the cover plate (105) is an upper guide rail (120). In front of the upper guide rail (120) From top to bottom, there are adjusting plate (118) and side guide rail (121), which are laterally tightened by adjusting screw B (108) and adjusting screw A (107), respectively. Behind the upper guide rail (120), from top to bottom, there are adjusting plate (118) and threaded plate (119), which are laterally tightened by adjusting screw A (107). Directly below the upper guide rail (120) are two symmetrically arranged slider cutters (127), and directly below the slider cutters (127) is the lower guide rail (122). The lower guide rail (122) is arranged in the same way as the upper guide rail (120). Below the lower guide rail (122) is the lower template (109). A straight-through oil injection cup manifold (124) is installed on one side of the lower template (109). Below the lower template (109) is the bottom frame (112). A V-shaped seat (117) is installed on the upper left of the bottom frame (112). Inside the bottom frame (112), from top to bottom, are the baffle plate (110) and the hydraulic station (111).

[0037] See Figure 2 , Figure 4 The conveying module (2) includes a feeding pneumatic gripper (206), below which is the conveying module housing (205), inside which is a walking stepper motor (201), below which is a helical gear (203), below which is the conveying module housing (205) is a conveying module slider (204), and on the side of the conveying module slider (204) is a grating ruler reading head (202).

[0038] See Figure 7 The feed trough (7) includes a grooved wheel (701) and a rotating shaft (702). The rotation of the feed trough (7) along the shaft can ensure the stability of feeding.

[0039] See Figure 7The V-shaped seat (117) comprises a V-shaped block A (11701), an angle steel (11702), and a V-shaped block B (11703).

[0040] Referring to Figure 8 The number of the slide block cutters (127) is two, and the pressing plate A (12701) and the lower cutter (12702) are symmetrically arranged along the symmetric surface of the partition plate (12703) in sequence and are fastened by bolts (12704).

[0041] The full-automatic round pipe profile cutting integrated machine can work in full-automatic mode or in point operation mode, and can continuously produce in full-automatic mode.

[0042] Referring to Figures 1-2 The full-automatic round pipe profile cutting integrated machine comprises a walking stepping motor (201), a grating ruler reading head (202) and a scale grating (9) which are driven by the bevel gear (203) and the bevel gear rack (13) to form a full-closed loop control, and the walking distance of the conveying module (2) can be accurately controlled.

[0043] Referring to Figure 8 The contact part of the lower cutter (12702) with the round pipe is in a stepped structure with the radius of the fillet increasing from inside to outside, so that the invalid profile area is reduced.

[0044] The upper guide rail (120), the slide block cutter (127) and the lower guide rail (122) are all provided with oil guide grooves through which lubricating grease can pass.

[0045] The working principle and use process of the full-automatic round pipe profile cutting integrated machine are as follows: production parameters are set, and the control mode is automatic control or point operation control. In the automatic control mode, a plurality of round pipes are placed in the tray 4, the chute stepping motor 6 drives the chute 7 to rotate, the round pipes are sent into the feeding pneumatic clamping jaw 206 and the V-shaped seat 117, the feeding pneumatic clamping jaw 206 clamps the end of the round pipe, the walking stepping motor 201 drives the round pipe to move forward through the bevel gear 203 and the bevel gear rack 13, and the grating ruler reading head 202 feeds back a signal to the control system when the round pipe reaches the specified position, the control system sends a stop command to the walking stepping motor 201 to stop the movement of the walking stepping motor 201, the pressing cylinder 125 acts to fix the round pipe on one side of the V-shaped seat 117, the discharging pneumatic clamping jaw 20 clamps the head of the round pipe, the profile hydraulic cylinder 123 acts to drive the slide block cutter 127 to move along the upper guide rail 120 and the lower guide rail 122 to extrude and form the round pipe, the cutting hydraulic cylinder 101 acts to drive the upper cutter 126 to move downward to cut the profile part of the round pipe, the discharging stepping motor 23 acts to drive the cut round pipe to move out through the ball screw nut 17 and the lead screw 21, and the discharging pneumatic clamping jaw 20 is loosened, and then the round pipe product falls off, and the above process is repeated automatically. The point operation control mode is to control the above process in point operation mode.

Claims

1. A fully automatic round tube forming and cutting integrated machine, characterized in that: The mold body (1) includes two U-shaped brackets (15) installed on the front right side of the mold body (1). A channel steel bracket (16) is installed above the U-shaped brackets (15). Below the channel steel bracket (16) is a discharge linear guide rail (24). Below the discharge linear guide rail (24) are two discharge sliders (18). Below the discharge sliders (18) is a base plate (19). Below the base plate (19) are two discharge pneumatic grippers (20). A ball screw nut (17) is installed on the side of the base plate (19). Inside the ball screw nut (17) is a screw (21). Bearing seats (22) are installed at both ends of the screw (21). The front of the screw (21) is a discharge stepper motor (23). A feeding frame is installed at the rear of the mold body (1). The frame (10) is equipped with a drag chain (14) on top of the feeding frame (10). There are two proximity switch sensors (11) on the side of the drag chain (14). There are two symmetrically arranged linear guide rails (12) on the side of the proximity switch sensors (11). There are helical racks (13) on the side of the linear guide rails (12). There is a scale grating (9) on the side of the helical rack (13). There is a conveying module (2) above the scale grating (9). There are two symmetrically arranged rectangular tube supports (3) on the side of the feeding frame (10). There are bearing seat plates (5) and material trays (4) on the top of the rectangular tube supports (3). There is a material trough stepper motor (6) behind the bearing seat plate (5). There is a material trough (7) in front of the bearing seat plate (5). The mold body (1) includes a cutting hydraulic cylinder (101), a top plate (102) below the cutting hydraulic cylinder (101), guide pillars (103) installed at the four corners of the top plate (102), a lower template (109) below the guide pillars (103), a clamping cylinder (125) installed on the lower template (109), the guide pillars are sleeved on the upper template (104) with guide sleeves, and an upper tool holder (114) is fixed in the middle of the upper template (104). The upper part is inlaid with an upper cutter (126), below which is a forming round tube (128). The upper cutter (126) is covered by a pressure plate (116) and then pressed by screws (115). Below the upper template (104) is a cover plate (105), below which is the mold body (106). On both sides of the mold body (106) are forming hydraulic cylinders (123). Below the middle of the cover plate (105) is an upper guide rail (120). The upper guide rail (120) is located in front of the upper guide rail (120). From top to bottom, there are adjusting plate (118) and side guide rail (121), which are laterally tightened by adjusting screw B (108) and adjusting screw A (107) respectively. Behind the upper guide rail (120), from top to bottom, there are adjusting plate (118) and threaded plate (119), which are laterally tightened by adjusting screw A (107). Directly below the upper guide rail (120) are two symmetrically arranged slider cutters (127), and directly below the slider cutters (127) is the lower guide rail (122). The lower guide rail (122) is arranged in the same way as the upper guide rail (120). Below the lower guide rail (122) is the lower template (109). A straight-through oil injection cup manifold (124) is installed on one side of the lower template (109). Below the lower template (109) is the bottom frame (112). A V-shaped seat (117) is installed on the upper left of the bottom frame (112). Inside the bottom frame (112), from top to bottom, are the baffle plate (110) and the hydraulic station (111).

2. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that... The conveying module (2) includes a feeding pneumatic gripper (206), below which is the conveying module housing (205), inside which is a walking stepper motor (201), below which is a helical gear (203), below which is the conveying module housing (205) is a conveying module slider (204), and on the side of the conveying module slider (204) is a grating ruler reading head (202).

3. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that... The feed trough (7) includes a grooved wheel (701) and a rotating shaft (702). The rotation of the feed trough (7) along the shaft can ensure the stability of feeding.

4. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that... The V-shaped seat (117) includes V-shaped block A (11701), angle steel (11702), and V-shaped block B (11703).

5. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that: The number of slider cutters (127) is 2. The pressure plate A (12701) and the lower cutter (12702) are arranged symmetrically along the partition (12703) and fastened by bolts (12704).

6. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that: It can operate in fully automatic mode or in jog mode. In fully automatic mode, it can be used for continuous production.

7. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that: The walking stepper motor (201) driven by helical gear (203) and helical rack (13) forms a closed-loop control with the grating ruler reading head (202) and the scale grating (9), which can accurately control the travel distance of the conveying module (2).

8. The fully automatic round tube forming and cutting integrated machine according to claim 5, characterized in that: The part of the lower cutter (12702) that contacts the round tube adopts a stepped structure with an increasing radius of radius from the inside to the outside, so as to reduce the ineffective pressing area.

9. The fully automatic round tube forming and cutting integrated machine according to claim 1, characterized in that: The upper guide rail (120), the slider cutter (127), and the lower guide rail (122) are all provided with oil guide grooves to facilitate the passage of lubricating grease.

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