Machine tool for processing threading pipe joint

Abstract

The utility model belongs to the technical field of machining equipment, and particularly discloses a threading pipe joint machining machine tool which comprises a station rotating disc mechanism, a rack and a hydraulic station device, the station rotating disc mechanism is installed in the center of the rack, and the hydraulic station device is installed below the rack. The feeding positioning mechanism, the reducing and flanging mechanism, the pipe orifice tapping mechanism, the pipe orifice nut mounting mechanism, the punching and flanging mechanism, the orifice tapping mechanism, the orifice screw mounting mechanism and the rapid discharging mechanism are uniformly distributed on the table top of the rack around the station turntable mechanism in the circumferential direction of the station turntable according to the technological process. And the station turntable mechanism rotates clockwise or anticlockwise at a certain beat according to the distribution of each mechanism on the table board of the rack. According to the utility model, the distribution of each mechanism is flexible and adjustable, the manual operation is replaced by the equipment, the procedures of manually screwing nuts and screws are optimized, the production efficiency of products is improved, and the production cost is reduced. The utility model is suitable for processing the threading pipe joint.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing equipment and relates to a threading pipe joint processing machine tool. Background Art

[0002] Threading pipes are generally used for building installation, power equipment installation, telecommunication equipment installation, etc. Metal threading pipes can be used in strong acidic, strong alkaline or highly corrosive places to ensure the safety and long-term use of the lines. Metal threading pipe joints are accessories suitable for connecting metal threading pipes. They have a simple structure and reliable connection, which can ensure the connection effect between metal threading pipes.

[0003] At present, when producing threading pipe joints, it is necessary to Figure 1 The threading tube blank shown in the figure is processed by reducing the diameter, flanging, tapping the inner thread of the tube mouth, punching holes on the side and tapping the inner thread, and then the matching nut is assembled with the inner thread of the tube mouth, and the screw is assembled with the inner thread on the side to make the tube as shown in the figure. Figure 2 Conduit fitting shown.

[0004] For example, the Chinese utility model patent with the authorization announcement number CN207494953U discloses an eight-station automatic processing machine tool for threading pipe joints, such as Figure 3 As shown, the eight-station turntable mechanism 1 is installed at the center of the frame 9, and the feeding positioning mechanism 2, the diameter reduction and flanging mechanism 3, the pipe mouth tapping mechanism 4, the iron chip cleaning mechanism 5, the punching and flanging mechanism 6, the hole tapping mechanism 7 and the fast unloading mechanism 8 are sequentially distributed on the frame 9 table in a clockwise direction along the circumferential direction of the eight-station turntable mechanism 1, and the hydraulic station device 10 is distributed below the frame 9. The machine tool can continuously and automatically perform operations such as diameter reduction, flanging, internal tapping of the pipe mouth, and side punching and tapping of internal threads on the threading pipe blank, but it is still necessary to manually screw the matching nut into the internal thread of the pipe mouth and the matching screw into the internal thread of the side hole, which is time-consuming and labor-intensive, and has low production efficiency. Summary of the invention

[0005] The purpose of the utility model is to provide a threading pipe joint processing machine tool, which can automatically screw a nut into the inner thread of a pipe mouth and screw an adapted screw into the inner thread of a side hole, thereby greatly improving the production efficiency of the threading pipe joint and reducing the production cost.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A threading pipe joint processing machine tool, comprising a station turntable mechanism, a feeding positioning mechanism, a diameter reduction and flanging mechanism, a pipe mouth tapping mechanism, a punching and flanging mechanism, a hole tapping mechanism, a fast unloading mechanism, a frame and a hydraulic station device, wherein the station turntable mechanism is installed at the center of the frame, and the hydraulic station device is installed below the frame, and is characterized in that it also comprises a pipe mouth upper nut mechanism and a hole mouth upper screw mechanism;

[0008] The feeding positioning mechanism, the diameter reduction and flanging mechanism, the pipe mouth tapping mechanism, the pipe mouth nut mechanism, the punching and flanging mechanism, the hole tapping mechanism, the hole screw mechanism, and the fast feeding mechanism are uniformly distributed on the frame table along the circumference of the station turntable around the station turntable according to the process flow;

[0009] The station turntable mechanism rotates clockwise or counterclockwise at a certain rhythm on the frame table according to the distribution of each mechanism.

[0010] As a limitation, the threading pipe joint processing machine tool also includes a defective product detection mechanism; the station turntable mechanism adopts a ten-station turntable mechanism;

[0011] The defective product detection mechanism includes a nut detection sensor for detecting whether the workpiece has a nut and a defective product knocking out device;

[0012] The nut detection sensor is installed between the nut mechanism on the pipe mouth and the defective product knocking device;

[0013] The defective product ejecting device comprises a chassis, a support frame mounted on the chassis, a defective product pusher mounted on the support frame, and a defective product cylinder for driving the defective product pusher to move, and also comprises a screw detection sensor mounted on the chassis for detecting whether a workpiece has screws;

[0014] The unqualified product pushing head and the unqualified product cylinder are suspended above the ten-station turntable mechanism, and the unqualified product pushing head faces the outer side of the ten-station turntable mechanism.

[0015] As a further limitation, the ten-station turntable mechanism includes a turntable body and ten workpiece fixing blocks evenly distributed on the outer side of the turntable;

[0016] The workpiece fixing block is provided with a workpiece placing groove parallel to the axial direction of the turntable body on the outer side of the turntable, and a magnet for fixing the workpiece is arranged in the placing groove.

[0017] As a second limitation, the nozzle upper nut mechanism includes a nut vibration feeding module, a nut feeding module, and an axial nut tightening module;

[0018] The nut vibration feeding module includes a nut feeding vibration plate, a nut feeding blocking rod and a nut feeding sensor installed at the discharge port of the nut feeding vibration plate;

[0019] The nut feeding module comprises a nut feeding plate and a nut feeding cylinder which pushes the nut feeding plate to reciprocate linearly between the discharge port of the nut feeding vibration plate and the axial nut tightening module;

[0020] An opening with a U-shaped cross section is provided on the side of the nut feeding plate, and a nut feeding sensor for detecting whether there is a nut at the opening is provided on the other side of the opening;

[0021] The axial nut tightening module includes a three-finger cylinder, a nut rotating motor located directly above the three-finger cylinder for controlling the rotation of the three-finger cylinder, a vertically arranged ball screw, a nut upper and lower motor for controlling the rotation of the ball screw, a connecting plate for fixing the three-finger cylinder and the nut rotating motor and sliding up and down along the ball screw, and a radial clamping mechanism located below the ball screw for fixing the workpiece.

[0022] As a third limitation, the orifice screw mechanism includes a screw vibration feeding module, a screw pressurizing module, a screw feeding module, and a radial screw tightening module;

[0023] The screw vibration feeding module includes a screw feeding vibration plate, a screw feeding blocking rod and a screw feeding sensor installed at the discharge port of the screw feeding vibration plate;

[0024] The screw pressurizing module includes a screw feeding guide rail connected to the discharge port of the screw feeding vibration plate, a screw pushing cylinder for pushing the screw, a sealing box for sealing the screw space after pushing the screw, and a pressurizing pipe with one end connected to the press and the other end connected to the sealing box to provide air pressure to the screw;

[0025] The screw feeding module includes a feeding head, a feeding pipe having one end connected to a sealing box in the screw pressurizing module and the other end connected to the feeding head, a feeding connection block connected to the feeding head, and a feeding cylinder for pushing the feeding connection block;

[0026] The radial screw tightening module includes a screw tightening rod passing through the feeding connection block but not contacting the feeding connection block, a screw tightening motor connected to the screw tightening rod and controlling its rotation, a tightening connection block connected to the screw tightening motor, and a tightening cylinder pushing the tightening connection block.

[0027] As a further limitation, three channels are provided in the sealing box, one end of the three channels is connected to the pressurized tube, the second end is connected to the feeding tube, and the third end is used for the entry of the screw;

[0028] When the screw pushing cylinder pushes the screw along the screw feeding guide rail into the three channels of the sealing box, the pushing head of the screw pushing cylinder will seal the port at the third end of the three channels; when the screw pushing cylinder performs a retracting action, the pushing head of the screw pushing cylinder leaves the port at the third end of the three channels of the sealing box, and the pushing head of the screw pushing cylinder no longer seals the third end of the three channels of the sealing box.

[0029] As the utility model adopts the above technical solution, compared with the prior art, the technical progress achieved is:

[0030] (1) The utility model uses equipment to replace manual labor, and optimizes the two processes of manual nut tightening and manual screw tightening by adding a nut mechanism on the pipe mouth and a screw mechanism on the hole mouth, thereby improving the production efficiency of the product; further adding a defective product detection mechanism to replace the manual visual inspection process, further improving the production efficiency of the product, increasing the product qualification rate, and reducing the production cost;

[0031] (2) The arrangement of the various mechanisms in the utility model is not unique. The mechanism positions can be flexibly arranged according to the actual position and space in accordance with the process flow, thereby improving the scope of application and space utilization of the utility model;

[0032] (3) The workpiece fixing block in the ten-station turntable mechanism of the utility model is designed to be detachable. When switching the production product model, it can be directly removed and replaced without replacing the entire ten-station turntable mechanism, which greatly reduces the switching time;

[0033] (4) The utility model increases the stability of the workpiece by arranging a magnet on the workpiece fixing block;

[0034] (5) In the utility model, the nut mechanism on the nozzle includes a nut vibration feeding module, a nut feeding module, and an axial nut tightening module. The modules can closely cooperate with each other and continuously and automatically complete the nut tightening process, thereby improving the degree of automation; further, a three-finger cylinder is provided for clamping the nut, which can prevent the nut from falling during the movement process, thereby increasing reliability;

[0035] (6) In the utility model, the screw mechanism on the hole includes a screw vibration feeding module, a screw pressurizing module, a screw feeding module, and a radial screw tightening module. The modules can cooperate closely and continuously and automatically complete the screw tightening process, thereby improving the degree of automation. Furthermore, the sealing box is set as a three-channel structure, and a screw pushing cylinder is used for sealing during the screw conveying process. The structural setting is ingenious and the efficiency is improved at the same time.

[0036] (7) In the present invention, the position of the nut detection sensor is not unique. It is sufficient as long as the nut detection sensor is located between the nut mechanism on the pipe mouth and the defective product detection mechanism. This increases the flexibility of arranging the nut detection sensor and further improves the practicality of the present invention.

[0037] The utility model belongs to the technical field of mechanical processing equipment and can improve the production efficiency of threading pipe joints and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0039] In the attached picture:

[0040] Figure 1 This is a schematic diagram of the structure of a threading pipe joint workpiece blank in the utility model;

[0041] Figure 2 This is a structural schematic diagram of a finished product of a threading pipe joint in the utility model;

[0042] Figure 3 It is a schematic diagram of the overall structure of a threading pipe joint processing machine tool in the prior art of the utility model;

[0043] Figure 4 A schematic top view of the structure of an embodiment of the utility model;

[0044] Figure 5 This is a schematic diagram of the structure of a ten-station turntable mechanism in an embodiment of the utility model;

[0045] Figure 6 This is a structural schematic diagram of a nut vibration feeding module in an embodiment of the utility model;

[0046] Figure 7 This is a structural schematic diagram of a nut feeding module in an embodiment of the utility model;

[0047] Figure 8 This is a structural schematic diagram of an axial nut tightening module in an embodiment of the utility model;

[0048] Fig. 9 This is a schematic diagram of the structure of a three-finger cylinder in an embodiment of the utility model;

[0049] Fig.10 This is a structural schematic diagram of a screw vibration feeding module in an embodiment of the utility model;

[0050] Fig.11 This is a structural schematic diagram of a screw pressurizing module in an embodiment of the utility model;

[0051] Fig.12 It is a structural schematic diagram of a screw feeding module and a radial screw tightening module in an embodiment of the utility model;

[0052] Fig.13 It is a schematic diagram of the structure of the device for knocking out defective products in an embodiment of the utility model.

[0053] In the figure: 1. Eight-station turntable mechanism, 2. Feeding positioning mechanism, 3. Reduction and flanging mechanism, 4. Pipe tapping mechanism, 5. Iron chip cleaning mechanism, 6. Punching and flanging mechanism, 7. Orifice tapping mechanism, 8. Quick unloading mechanism, 9. Rack, 10. Hydraulic station device, 11. Pipe nut mechanism, 12. Orifice screw mechanism, 13. Unqualified product detection mechanism, 14. Ten-station turntable mechanism, 11-1. Nut feeding vibration plate, 11-2. Nut feeding blocking rod, 11-3. Nut feeding sensor, 11-4. Nut feeding plate, 11-5. Nut feeding cylinder, 11-6. Opening, 11-7. Nut feeding sensor, 11-8. Three-finger cylinder, 11-9. Nut rotating motor, 11-10. Nut upper and lower motors, 11-11. Ball screw, 11-12. Connecting plate, 11-13, radial clamping mechanism, 11-14, pneumatic finger, 12-1, screw feeding vibration plate, 12-2, screw feeding blocking rod, 12-3, screw feeding sensor, 12-4, screw feeding guide rail, 12-5, screw pushing cylinder, 12-6, pressurizing pipe, 12-7, feeding pipe, 12-8, sealing box, 12-9, feeding head, 12-10, feeding connecting block, 12-11, feeding cylinder, 12-12, screw tightening rod, 12-13, tightening connecting block, 12-14, tightening cylinder, 12-15, screw tightening motor, 13-1, unqualified product push head, 13-2, unqualified product cylinder, 13-3, support frame, 13-4, chassis, 13-5, screw detection sensor, 14-1, turntable body, 14-2, workpiece fixing block. DETAILED DESCRIPTION

[0054] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0055] Embodiment A threading pipe joint processing machine tool

[0056] This embodiment is an improvement on the Chinese utility model patent with authorization announcement number CN207494953U, and focuses on the improvements, while the parts not described are the same as the prior art.

[0057] Combination Figure 4As shown, this embodiment includes a feeding positioning mechanism 2, a diameter reduction and flanging mechanism 3, a pipe mouth tapping mechanism 4, a punching and flanging mechanism 6, a hole mouth tapping mechanism 7, a quick feeding mechanism 8, a pipe mouth upper nut mechanism 11, a hole mouth upper screw mechanism 12, a frame 9 and a hydraulic station device 10.

[0058] In order to further improve production efficiency, reduce costs, and enhance intelligence, this embodiment adds a defective product detection mechanism 13. As a match, the station turntable mechanism in this embodiment adopts a ten-station turntable mechanism 14.

[0059] The ten-station turntable mechanism 14 is installed at the center of the frame 9, the hydraulic station device 10 is installed below the frame 9, the loading positioning mechanism 2, the diameter reduction and flanging mechanism 3, the pipe mouth tapping mechanism 4, the pipe mouth nut mechanism 11, the punching and flanging mechanism 6, the hole tapping mechanism 7, the hole screw mechanism 12, the defective product detection mechanism 13, and the fast unloading mechanism 8 are evenly distributed on the surface of the frame 9 in a counterclockwise order around the ten-station turntable mechanism 14 according to the production process. The ten-station turntable mechanism 14 rotates counterclockwise on the surface of the frame 9 at a certain beat. Figure 5 As shown, the ten-station turntable mechanism 14 includes a turntable body 14-1 and ten workpiece fixing blocks 14-2 for accommodating workpieces evenly distributed on the periphery of the turntable body 14-1. Each workpiece fixing block 14-2 is detachably fixedly connected to the turntable body 14-1 by two connecting pins. The workpiece fixing block 14-2 is provided with a workpiece placement groove along the radial direction of the turntable body 14-1 on the outer side of the turntable. The contact surface between the placement groove and the workpiece is provided with a magnet for fixing the workpiece, which can increase the stability of the workpiece.

[0060] The loading and positioning mechanism 2 enables the workpiece blank to reach the designated loading point, the diameter reduction and flanging mechanism 3 performs diameter reduction and flanging processing on the workpiece blank, the pipe mouth tapping mechanism 4 realizes the tapping of the flanging pipe mouth internal thread processing, the punching and flanging mechanism 6 realizes the punching and flanging processing on the side of the workpiece from the inside of the workpiece, the hole tapping mechanism 7 completes the tapping processing on the hole of the workpiece, and the fast unloading mechanism 8 realizes the function of the workpiece that reaches the unloading position to leave the unloading station. The difference is that the pipe mouth tapping mechanism 4 in this embodiment does not use a tap but a chisel. The chisel is initially located directly above the center of the workpiece. When the positioning slide performs the ejection action, the axial tapping feed module will also synchronously move toward the ten-station turntable mechanism 14. At this time, the chisel is just above the inner diameter of the workpiece, and then the tool spindle rotates downward, driving the chisel to tap the inner thread of the pipe mouth on the inner diameter of the workpiece. After completing the rotary tapping of the internal thread, the positioning slider performs a retraction action, and the axial tapping feed module also synchronously moves away from the ten-station turntable mechanism 14. The engraving knife translates from the inner diameter of the workpiece to the center of the workpiece, and then moves upward under the drive of the cylinder in the axial tapping feed module. The engraving knife returns to the initial position and completes the entire pipe mouth tapping action.

[0061] The following is a detailed introduction to the nut mechanism 11 on the pipe mouth, the screw mechanism 12 on the hole mouth, and the defective product detection mechanism 13.

[0062] 1. Nut mechanism on the pipe mouth 11

[0063] like Figure 6 , Figure 7 and Figure 8 As shown, the nozzle nut mechanism 11 includes a nut vibration loading module, a nut feeding module, and an axial nut tightening module. The nut vibration loading module provides nuts to the nut feeding module, the nut feeding module is responsible for conveying the nuts to the axial nut tightening module, and the axial nut tightening module is responsible for screwing the nuts to the nozzle of the workpiece.

[0064] The nut vibration feeding module includes a nut feeding vibration plate 11-1, a nut feeding blocking rod 11-2 and a nut feeding sensor 11-3 installed at the discharge port of the nut feeding vibration plate 11-1. The nut feeding module includes a nut feeding plate 11-4 and a nut feeding cylinder 11-5 for pushing the nut feeding plate 11-4 to reciprocate linearly. An opening 11-6 with a U-shaped cross section is provided on the side of the nut feeding plate 11-4, and a nut feeding sensor 11-7 for detecting whether there is a nut at the opening 11-6 is provided on the other side of the opening 11-6. The axial nut tightening module includes a three-finger cylinder 11-8, a nut rotating motor 11-9 located just above the three-finger cylinder 11-8 and controlling the rotation of the three-finger cylinder 11-8, a vertically arranged ball screw 11-11, a nut upper and lower motor 11-10 controlling the rotation of the ball screw 11-11, a connecting plate 11-12 for fixing the three-finger cylinder 11-8 and the nut rotating motor 11-9 and sliding up and down along the ball screw 11-11, and a radial clamping mechanism 11-13 located below the ball screw 11-11 and used to fix the workpiece. The structure of the radial clamping mechanism 11-13 is the same as the station radial positioning module on the pipe mouth tapping mechanism 4.

[0065] like Fig. 9 As shown, the three-finger cylinder 11-9 includes three pneumatic fingers 11-14 that can move from the center to the edge; when the three-finger cylinder 11-9 is used to clamp the nut, the three-finger cylinder 11-9 first descends to allow the pneumatic fingers 11-14 to pass through the center of the nut first, and then the pneumatic fingers 11-14 are driven by the three-finger cylinder 11-9 to open from the center to the edge of the nut, and after contacting the inner surface of the nut, they continue to apply force to fix the nut under the three-finger cylinder 11-9; then the three-finger cylinder 11-9 moves upward to complete the clamping of the nut.

[0066] The nut in the embodiment of the utility model is in a shape of being wide at the top and narrow at the bottom. The nut reaches the nut loading blocking rod 11-2 through the nut loading vibration disk 11-1. When the nut feeding plate 11-4 retreats to its position under the action of the nut feeding cylinder 11-5, the opening 11-6 on the nut feeding plate 11-4 is aligned with the discharge port of the nut loading vibration disk 11-1. At this time, the nut loading sensor 11-3 senses that the nut is in place and the nut feeding plate 11-4 is in place, and the nut loading blocking rod 11-2 releases the nut, and the nut enters the opening 11-6 through the nut loading vibration disk 11-1, and the nut loading blocking rod 11-2 returns to its position. Then, after the nut feeding sensor 11-7 detects the nut at the opening 11-6, the nut feeding plate 11-4 is extended by the nut feeding cylinder 11-5 until the opening 11-6 is directly below the three-finger cylinder 11-8. At this time, the nut upper and lower motors 11-10 are started, and the connecting plate 11-12 is driven to move downward through the ball screw 11-11, thereby driving the three-finger cylinder 11-8 to move downward from the initial position until the pneumatic fingers 11-14 complete the clamping of the nut; then the nut upper and lower motors 11-10 drive the connecting plate 11-12 to move upward through the ball screw 11-11, thereby driving the three-finger cylinder 11-8 to move upward, clamping the nut out, and waiting for the workpiece to be in place; at the same time, the nut feeding plate 11-4 retracts to prepare for transporting the next nut. After the workpiece is in place, the radial clamping mechanism 11-13 extends toward the ten-station turntable mechanism 14 and cooperates with the placement slot to fix the workpiece. The nut upper and lower motors 11-10 drive the connecting plate 11-12 downward through the ball screw 11-11, and then drive the three-finger cylinder 11-8 to move downward; while the three-finger cylinder 11-8 moves downward, the nut rotation motor 11-9 starts, driving the three-finger cylinder 11-8 to rotate, and the three-finger cylinder rotates downward to complete the nut tightening action. Then, under the action of the three-finger cylinder 11-8, the pneumatic finger 11-14 moves from the inner surface of the nut to the center to loosen the nut; the radial clamping mechanism 11-13 loosens the workpiece. Finally, the nut upper and lower motors 11-10 drive the connecting plate 11-12 upward through the ball screw 11-11, and then drive the three-finger cylinder 11-8 to move upward to the initial position, completing a processing cycle.

[0067] 2. Screw mechanism on the hole 12

[0068] like Fig.10 , Fig.11 and Fig.12 As shown, the screw mechanism 12 on the hole includes a screw vibration feeding module, a screw pressurizing module, a screw feeding module, and a radial screw tightening module; the screw vibration feeding module provides screws for the screw pressurizing module, the screw pressurizing module feeds the screws into the screw feeding module and provides air pressure to push the screws to move, the screw feeding module feeds the screws into the side hole of the workpiece, and the radial screw tightening module is responsible for tightening the screws.

[0069] The screw vibrating feeding module includes a screw feeding vibration plate 12-1, a screw feeding blocking rod 12-2 and a screw feeding sensor 12-3 installed at the discharge port of the screw feeding vibration plate 12-1; the screw pressurizing module includes an L-shaped screw feeding guide rail 12-4 connected to the discharge port of the screw feeding vibration plate 12-1, for conveying screws with the screw tips facing downward, a screw pushing cylinder 12-5 arranged at the bend of the screw feeding guide rail 12-4 for pushing screws, a sealing box 12-8 for sealing the screw space after pushing the screw, and a pressurizing pipe 12-6 with one end connected to the press and the other end connected to the sealing box 12-8 to provide air pressure to the screw; the screw feeding module includes a feeding A material head 12-9, a feeding tube 12-7 with one end connected to a sealing box 12-8 in a screw pressurizing module and the other end connected to the feeding head 12-9, a feeding connecting block 12-10 connected to the feeding head 12-9, and a feeding cylinder 12-11 that pushes the feeding connecting block 12-10; the radial screw tightening module includes a screw tightening rod 12-12 that passes through the feeding connecting block 12-10 but does not contact it, a screw tightening motor 12-15 that is connected to the screw tightening rod 12-12 and controls its rotation, a tightening connecting block 12-13 connected to the screw tightening motor 12-15, and a tightening cylinder 12-14 that pushes the tightening connecting block 12-13.

[0070] The sealing box 12-8 is provided with a three-channel, one end of the three-channel is connected to the pressure tube 12-6, the second end is connected to the feeding tube 12-7, and the third end is used for the entry of the screw. The screw feeding guide 12-4 is an L-shaped guide, wherein the first section extends from the discharge port of the feeding vibration plate 12-1 to the sealing box 12-8, and the other section extends from the end of the first section to the third end of the three-channel. The spacing between the two guide rails of the screw feeding guide 12-4 is greater than the screw diameter of the screw and smaller than the nut of the screw. When the screw moves on the screw feeding guide 12-4, the screw will slide from the two guide rails of the screw feeding guide 12-4 under the action of gravity, and the nut will be stuck on the two guide rails of the screw feeding guide 12-4, so as to achieve the effect of making the tip of the screw face downward. When the screw pushing cylinder 12-5 pushes the screw along the screw feeding guide 12-4 into the three channels of the sealing box 12-8, the pushing head of the screw pushing cylinder 12-5 blocks the port at the third end of the three channels, and the third end is sealed by the pushing head of the screw pushing cylinder 12-5; when the screw pushing cylinder 12-5 performs the retracting action, the pushing head of the screw pushing cylinder 12-5 leaves the port at the third end of the three channels of the sealing box, and the pushing head of the screw pushing cylinder 12-5 no longer plays the role of sealing the third end of the three channels of the sealing box.

[0071] The screw passes through the screw feeding vibration plate 12-1 and reaches the discharge port of the screw feeding vibration plate 12-1. When the screw feeding sensor 12-3 recognizes the screw, the screw feeding blocking rod 12-2 releases the screw, and the screw enters the screw feeding guide rail 12-4 with the tip facing downward. At the same time, the screw feeding blocking rod 12-2 returns to its position. When the workpiece reaches the processing station through the rotation of the ten-station turntable mechanism 14, the screw pushing cylinder 12-5 pushes the screw into the three channels in the sealing box 12-8. Under the action of gravity, the screw falls into the feeding pipe 12-7 with the tip facing downward. At this time, the screw pushing cylinder 12-5 plays a sealing role, and the press provides air pressure, which reaches the feeding pipe 12-7 through the pressurized pipe 12-6 and the three channels, and sends the screw into the feeding head 12-9; at the same time, the feeding cylinder 12-11 pushes the feeding connection block 12-10, driving the feeding head 12-9 to move toward the workpiece, and the screw entering the feeding head 12-9 just enters the processing The screw enters the side hole of the workpiece, and then the tightening cylinder 12-14 pushes the tightening connection block 12-13 to drive the screw tightening motor 12-15 and the screw tightening rod 12-12 to move toward the workpiece, and the screw tightening rod 12-12 contacts the screw and rotates under the action of the screw tightening motor 12-15 to screw the screw into the side hole of the workpiece, and then the screw tightening rod 12-12 stops rotating, and the feeding cylinder 12-11 and the tightening cylinder 12-14 retreat, driving the feeding head 12-9 and the screw tightening rod 12-12 away from the workpiece, waiting for the next workpiece to arrive and continue to repeat the operation. The operating principle of the screw mechanism 12 on the hole in this embodiment is similar to that of the air-blowing screw machine in the prior art. In this embodiment, after the screw pushing cylinder 12-5 completes the retracting action, the screw feeding blocking rod 12-2 will only execute the releasing action when the screw feeding sensor 12-3 recognizes the screw, thereby ensuring that only one screw is pushed by the screw pushing cylinder 12-5 each time.

[0072] 3. Non-conforming product inspection agency 13

[0073] like Fig.13As shown, in this embodiment, the defective product detection mechanism 13 includes a nut detection sensor for detecting whether the workpiece has a nut and a defective product knocking-out device, wherein the nut detection sensor is installed near the workpiece fixing block 14-2 of the nut mechanism 11 on the pipe mouth. The defective product knocking-out device includes a chassis 13-4, a support frame 13-3 installed on the chassis 13-4, a defective product pusher 13-1 and a defective product cylinder 13-2 installed on the support frame 13-3, and a screw detection sensor 13-5 installed on the chassis 13-4 for detecting whether the workpiece has a screw. The defective product pusher 13-1 and the defective product cylinder 13-2 are suspended above the ten-station turntable mechanism 14, and the defective product pusher 13-1 faces the outside of the ten-station turntable mechanism 14. The nut detection sensor and the screw detection sensor 13-5 detect that the workpiece has no nuts or screws installed, and transmit the signal to the defective product cylinder 13-2. When the workpiece arrives at the defective product detection station, the defective product cylinder 13-2 pushes the defective product push head 13-1 to move to the outside of the ten-station turntable mechanism 14 according to the signal, and drives the corresponding defective workpiece out of the station. If the nut detection sensor and the screw detection sensor 13-5 do not detect a defect, the defective product cylinder 13-2 does not perform the action. In this embodiment, the nut detection sensor is arranged near the workpiece fixing block 14-2 of the nut mechanism 11 on the pipe mouth. In actual application, the position of the nut detection sensor can be changed, as long as the nut detection sensor is ensured to be located between the nut mechanism 11 on the pipe mouth and the defective product detection mechanism 13.

[0074] The processing flow of this embodiment is as follows: the workpiece blank enters the ten-station turntable mechanism 14 through the loading and positioning mechanism 2, and under the rotation of the ten-station turntable mechanism 14, it passes through the reducing and flanging mechanism 3, the pipe mouth tapping mechanism 4, the pipe mouth nut mechanism 11, the punching and flanging mechanism 6, the hole tapping mechanism 7, the hole mouth screw mechanism 12, the unqualified product detection mechanism 13, and the rapid unloading mechanism 8 in sequence. Each time the ten-station turntable mechanism 14 rotates once, each mechanism performs a processing action, a new workpiece blank enters, and a processed part is separated from the unqualified product detection station or the rapid unloading station, thereby realizing continuous automatic processing of multiple processed parts.

[0075] It should be noted that this embodiment is an improvement of the prior art, and the combination of the feeding positioning mechanism 2, the diameter reduction and flanging mechanism 3, the punching and flanging mechanism 6, the hole tapping mechanism 7, the fast unloading mechanism 8, the frame 9 and the hydraulic station device 10 all adopt the prior art. In this embodiment, the rotation direction of the ten-station turntable mechanism 14 can also be adjusted to the clockwise direction according to the actual situation. At this time, each mechanism needs to be changed to the clockwise distribution according to the processing sequence of the production process. The distribution order of each mechanism in this embodiment is not unique and can be adjusted according to actual conditions as long as the distribution of the mechanism is guaranteed to be in line with the process flow. For example, the distribution order of each mechanism can be that the feeding and positioning mechanism 2, the punching and flanging mechanism 6, the hole tapping mechanism 7, the hole screw mechanism 12, the diameter reduction and flanging mechanism 3, the pipe tapping mechanism 4, the pipe nut mechanism 11, the defective product detection mechanism 13, and the rapid unloading mechanism 8 are evenly distributed on the surface of the frame 9 in the order of the rotation direction of the ten-station turntable mechanism 14; or the feeding and positioning mechanism 2, the punching and flanging mechanism 6, the diameter reduction and flanging mechanism 3, the hole tapping mechanism 7, the pipe tapping mechanism 4, the hole screw mechanism 12, the pipe nut mechanism 11, the defective product detection mechanism 13, and the rapid unloading mechanism 8 are evenly distributed on the surface of the frame 9 in the order of the rotation direction of the ten-station turntable mechanism 14.

Claims

1. A threading pipe joint processing machine tool, including a station turntable mechanism, a feeding positioning mechanism, a diameter reduction and flanging mechanism, a pipe mouth tapping mechanism, a punching and flanging mechanism, a hole tapping mechanism, a fast feeding mechanism, a frame and a hydraulic station device, the station turntable mechanism is installed at the center of the frame, and the hydraulic station device is installed below the frame, characterized in that: It also includes a nut mechanism on the pipe mouth and a screw mechanism on the hole mouth; The nozzle nut mechanism includes a nut vibration feeding module, a nut feeding module, and an axial nut tightening module; The nut vibration feeding module includes a nut feeding vibration plate, a nut feeding blocking rod and a nut feeding sensor installed at the discharge port of the nut feeding vibration plate; The nut feeding module comprises a nut feeding plate and a nut feeding cylinder which pushes the nut feeding plate to reciprocate linearly between the discharge port of the nut feeding vibration plate and the axial nut tightening module; An opening with a U-shaped cross section is provided on the side of the nut feeding plate, and a nut feeding sensor for detecting whether there is a nut at the opening is provided on the other side of the opening; The axial nut tightening module includes a three-finger cylinder, a nut rotating motor located just above the three-finger cylinder to control the rotation of the three-finger cylinder, a vertically arranged ball screw, a nut upper and lower motor to control the rotation of the ball screw, a connecting plate for fixing the three-finger cylinder and the nut rotating motor and sliding up and down along the ball screw, and a radial clamping mechanism located below the ball screw to fix the workpiece; The feeding positioning mechanism, the diameter reduction and flanging mechanism, the pipe mouth tapping mechanism, the pipe mouth nut mechanism, the punching and flanging mechanism, the hole tapping mechanism, the hole screw mechanism, and the fast feeding mechanism are uniformly distributed on the frame table along the circumference of the station turntable around the station turntable according to the process flow; The station turntable mechanism rotates clockwise or counterclockwise at a certain rhythm on the frame table according to the distribution of each mechanism.

2. A threading pipe joint processing machine tool according to claim 1, characterized in that: The threading pipe joint processing machine tool also includes a defective product detection mechanism; the station turntable mechanism adopts a ten-station turntable mechanism; The defective product detection mechanism includes a nut detection sensor for detecting whether the workpiece has a nut and a defective product knocking out device; The nut detection sensor is installed between the nut mechanism on the pipe mouth and the defective product knocking device; The defective product ejecting device comprises a chassis, a support frame mounted on the chassis, a defective product pusher mounted on the support frame, and a defective product cylinder for driving the defective product pusher to move, and also comprises a screw detection sensor mounted on the chassis for detecting whether a workpiece has screws; The unqualified product pushing head and the unqualified product cylinder are suspended above the ten-station turntable mechanism, and the unqualified product pushing head faces the outer side of the ten-station turntable mechanism.

3. A threading pipe joint processing machine tool according to claim 2, characterized in that: The ten-station turntable mechanism comprises a turntable body and ten workpiece fixing blocks evenly distributed on the outside of the turntable; The workpiece fixing block is provided with a workpiece placing groove parallel to the axial direction of the turntable body on the outer side of the turntable, and a magnet for fixing the workpiece is arranged in the placing groove.

4. The threading pipe joint processing machine tool according to claim 1, characterized in that: The screw-on mechanism for the orifice includes a screw vibration feeding module, a screw pressurizing module, a screw feeding module, and a radial screw tightening module; The screw vibration feeding module includes a screw feeding vibration plate, a screw feeding blocking rod and a screw feeding sensor installed at the discharge port of the screw feeding vibration plate; The screw pressurizing module includes a screw feeding guide rail connected to the discharge port of the screw feeding vibration plate, a screw pushing cylinder for pushing the screw, a sealing box for sealing the screw space after pushing the screw, and a pressurizing pipe with one end connected to the press and the other end connected to the sealing box to provide air pressure to the screw; The screw feeding module includes a feeding head, a feeding pipe having one end connected to a sealing box in the screw pressurizing module and the other end connected to the feeding head, a feeding connection block connected to the feeding head, and a feeding cylinder for pushing the feeding connection block; The radial screw tightening module includes a screw tightening rod passing through the feeding connection block but not contacting the feeding connection block, a screw tightening motor connected to the screw tightening rod and controlling its rotation, a tightening connection block connected to the screw tightening motor, and a tightening cylinder pushing the tightening connection block.

5. A threading pipe joint processing machine tool according to claim 4, characterized in that: The sealing box is provided with three channels, one end of the three channels is connected to the pressure pipe, the second end is connected to the feeding pipe, and the third end is used for the entry of the screw; When the screw pushing cylinder pushes the screw along the screw feeding guide rail into the three channels of the sealing box, the pushing head of the screw pushing cylinder will seal the port at the third end of the three channels; when the screw pushing cylinder performs a retracting action, the pushing head of the screw pushing cylinder leaves the port at the third end of the three channels of the sealing box, and the pushing head of the screw pushing cylinder no longer seals the third end of the three channels of the sealing box.

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