A coupling production line

Abstract

The present invention belongs to the technical field of coupling processing, and specifically relates to a coupling production line. The coupling production line includes a sawing machine loading unit, a sawing machine unloading unit, an external cylindrical machine working unit, a marking machine working unit, a coupling thread processing unit, an inspection working unit, a semi-finished product storage unit, a flaw detection working unit, a phosphating working unit and a finished coupling storage unit arranged in sequence along a preset material conveying direction, a manipulator working unit arranged between the external cylindrical machine working unit and the marking machine working unit, and an iron chip conveying unit for waste material conveying arranged next to the coupling thread processing unit. Compared with the prior art, the production line improves the degree of equipment automation, effectively reduces the total number of workshop employees, and through the reasonable allocation of work for personnel in each position, improves the balance rate of each position, improves the utilization efficiency of employees, reduces the waste of personnel waiting, and ultimately effectively improves the comprehensive labor efficiency of the workshop.

Description

Technical Field

[0001] The invention belongs to the technical field of coupling processing, and in particular relates to a coupling production line. Background Art

[0002] At present, the domestic oil casing coupling processing generally adopts a discrete production mode. The coupling processing process is: blank inspection - blank cutting - outer circle turning - coupling marking - thread turning - thread detection - magnetic particle inspection - coupling phosphating - finished product storage. Each process is produced independently. After the production is completed, it is transferred to the next process by manual or overhead crane. The problems of the discrete production mode are as follows:

[0003] 1) There are a large number of work-in-progress products. Each process is operated independently, and generally some products are processed in batches before being transferred to the next process, resulting in a large number of work-in-progress products in each process, increasing material inventory costs.

[0004] 2) The transportation distance is long and the labor intensity is high. Among them, the number of times the couplings are transported between each process is large, and the transportation distance is long. It usually requires manual transportation or the use of cranes, forklifts or trolleys. Not only is the labor intensity high, but the work efficiency is also very low.

[0005] 3) Waste of personnel waiting and low process balance rate. Among them, the working time and intensity of personnel between each process are unbalanced, the process balance rate is low, and personnel are waiting in many positions while the machines are running.

[0006] Based on this, the present invention provides a novel coupling production line to overcome the problems in the background technology. Summary of the invention

[0007] The purpose of the present invention is to provide a coupling production line, which improves the degree of automation of equipment, effectively reduces the total number of employees in the workshop, and through reasonable allocation of work to personnel in various positions, improves the balance rate of various positions, improves employee utilization efficiency, reduces personnel waiting waste, and ultimately effectively improves the overall labor efficiency of the workshop.

[0008] The present invention adopts the following technical scheme: a coupling production line, comprising a sawing machine loading unit, a sawing machine unloading unit, an external cylindrical machine working unit, a marking machine working unit, a coupling thread processing unit, an inspection working unit, a semi-finished product storage unit, a flaw detection working unit, a phosphating working unit and a finished coupling storage unit arranged in sequence along a preset material conveying direction, a manipulator working unit arranged between the external cylindrical machine working unit and the marking machine working unit, and an iron chip conveying unit for waste material conveying arranged beside the coupling thread processing unit;

[0009] The saw bed loading unit includes a base material frame, a first lifting and flipping loading mechanism, a first roller mechanism, a limiting mechanism, a second lifting and flipping loading mechanism, a driving roller mechanism and a tube material pressing mechanism;

[0010] The base material frame is used to support the blank, the first lifting and flipping feeding mechanism and the first roller mechanism are respectively arranged at both sides of the output end of the base material frame, the blank on the base material frame is flipped onto the first roller mechanism by the first lifting and flipping feeding mechanism, and a limiting mechanism is provided at the tail end of the feeding unit of the sawing machine, and the tail end of the blank is aligned by the cooperation of the limiting mechanism and the first roller mechanism;

[0011] The second lifting and flipping feeding mechanism and the driving roller mechanism are both arranged on one side of the first roller mechanism, and the blank on the first roller mechanism is flipped onto the driving roller mechanism by the second lifting and flipping feeding mechanism, and the tube material clamping mechanism is arranged at the head end and the tail end of the feeding unit of the saw bed, for clamping the blank on the driving roller mechanism;

[0012] The sawing machine blanking unit is used for blanking the blank and obtaining the coupling blank;

[0013] The manipulator working unit is provided with a manipulator, and the manipulator can convey the coupling blank obtained at the outlet end of the sawing machine unloading unit to the inlet end of the external cylindrical machine working unit, so as to realize external cylindrical processing of the coupling blank and obtain the coupling blank;

[0014] The manipulator can transport the coupling blank obtained at the outlet end of the external cylindrical machine working unit to the inlet end of the marking machine working unit, implement the marking operation on the coupling blank, and obtain the coupling blank after marking;

[0015] The marking machine working unit, the coupling thread processing unit and the inspection working unit are connected through a coupling conveying unit, and the coupling conveying unit includes a first coupling conveying unit and a second coupling conveying unit; the first coupling conveying unit is arranged between the marking machine working unit and the coupling thread processing unit, and is used to transfer the coupling blank after marking at the marking machine working unit to the inlet end of the coupling thread processing unit; the second coupling conveying unit includes an upper output unit and a lower conveying unit, and the upper conveying unit correspondingly conveys the coupling blank after marking at the inlet end of the coupling thread processing unit to each lathe device of the coupling thread processing unit to perform thread processing to obtain the coupling material after thread processing; the lower conveying unit is used to transfer the coupling material after thread processing to the detection platform of the inspection working unit;

[0016] The flaw detection work unit is used for flaw detection of the coupling material after thread processing, and the phosphating work unit is used for phosphating the coupling material after thread processing.

[0017] Furthermore, the sawing machine loading unit is provided with a plurality of units;

[0018] Each of the saw bed loading units comprises two spaced-apart base material racks, two of the first lifting and flipping loading mechanisms, at least two of the first roller mechanisms, one of the limiting mechanisms, two of the second lifting and flipping loading mechanisms, at least two of the driving roller mechanisms and two of the pipe material abutting mechanisms;

[0019] Wherein, the two first lifting and flipping feeding mechanisms are respectively arranged beside the output ends of the two base material racks, and the first lifting and flipping feeding mechanism is located between the output end of the base material rack and the first roller mechanism;

[0020] The two second lifting and flipping feeding mechanisms are respectively arranged on the sides of the two output ends of the base material racks, and the second lifting and flipping feeding mechanisms are located between the first roller mechanism and the driving roller mechanism.

[0021] Furthermore, the upper surface of the base material rack is inclined, and a first limiting protrusion is provided at the output end of the base material rack;

[0022] The upper surface of the first lifting and turning feeding mechanism is inclined, and the inclination direction of the first lifting and turning feeding mechanism is the same as the inclination direction of the base material rack;

[0023] The first roller mechanism comprises a first rotating shaft, and two oppositely arranged conical rollers sleeved on the first rotating shaft, and the small ends of the two conical rollers are in contact and connected;

[0024] The upper surface of the second lifting and flipping feeding mechanism is inclined, and the inclination direction of the second lifting and flipping feeding mechanism is the same as the inclination direction of the base material rack;

[0025] The driving roller mechanism comprises a second rotating shaft and a long roller sleeved on the second rotating shaft, and both ends of the long roller are provided with second limiting protrusions.

[0026] Furthermore, the sawing machine unloading unit includes at least one sawing machine mechanism for unloading the blank material, and a sawing machine purge mechanism arranged beside the sawing machine mechanism for purge the coupling blank material;

[0027] The output end of the sawing machine mechanism is a sloped outlet, and the sloped outlet is arranged opposite to the inlet of the sawing machine purge mechanism, so that the coupling blank obtained after the sawing machine mechanism unloads the material can be transferred to the sawing machine purge mechanism for purge operation.

[0028] Furthermore, the sawing machine purge mechanism includes a sawing machine purge base, a feeding platform arranged on the sawing machine purge base, a material pushing assembly arranged on the feeding platform, an upper support frame arranged directly above the feeding platform, a material baffle plate assembly, a material blocking rod assembly and a purge assembly arranged on the upper support frame;

[0029] Wherein, the feeding platform has an inlet position, a purge position and an outlet position along the preset coupling blank conveying direction, and the pushing assembly is arranged at the inlet position of the feeding platform, and is used to push the coupling blank from the inlet position to the outlet position;

[0030] The material blocking plate assembly and the material blocking rod assembly are arranged on both sides above the purging position, and are used to limit the coupling blank located at the purging position, so that there is only one coupling blank at the purging position;

[0031] The purge assembly is arranged at a position opposite to the purge position, and the purge assembly purges along the axial direction of the coupling blank.

[0032] Furthermore, the material baffle plate assembly includes a first cylinder and a material baffle plate, the first cylinder is installed on the upper support frame, the material baffle plate has a first connecting end, a second connecting end and a stop end, the first connecting end of the material baffle plate is connected to the telescopic end of the first cylinder, the second connecting end is hingedly connected to the upper support frame, and the stop end is used to limit one side of the coupling blank.

[0033] Furthermore, the material blocking rod assembly includes a second cylinder and a material blocking rod, the second cylinder is installed on the upper support frame, one end of the material blocking rod is connected to the telescopic end of the second cylinder, and the other end of the material blocking rod is provided with a roller for limiting the other side of the coupling blank.

[0034] Furthermore, an adjusting cylinder is vertically installed on the top of the upper support frame, and a lifting platform is slidably installed on the upper support frame. The telescopic end of the adjusting cylinder is connected to the lifting platform to drive the lifting platform to slide upward and adjust;

[0035] Correspondingly, the first cylinder in the baffle plate assembly is fixedly mounted on the lifting platform, and the second connecting end in the baffle plate assembly is hingedly connected to the lifting platform;

[0036] The second cylinder in the material blocking rod assembly is fixedly installed on the lifting platform.

[0037] Furthermore, the purge assembly includes a third cylinder and a purge nozzle, the third cylinder is fixedly mounted on one side of the upper support frame, and the telescopic direction of the third cylinder is concentrically arranged with the axis of the coupling blank, the purge nozzle is connected to the telescopic end of the third cylinder, and is used to extend into the center of the coupling blank for purge; the purge nozzle is a three-leaf boomerang nozzle.

[0038] Furthermore, the iron chip conveying unit is arranged at the waste outlet side of each lathe device of the coupling thread processing unit, and is used to receive the waste generated by the lathe device during processing;

[0039] The iron chip conveying unit comprises an iron chip conveying belt mechanism and a waste pool arranged at one end of the iron chip conveying belt mechanism, and the waste pool is used for centralized recycling of waste materials.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The coupling production line of the present invention improves the degree of equipment automation by optimizing the process layout and combining a manipulator, thereby effectively reducing the total number of employees in the workshop; and by reasonably allocating the work of personnel in each position, improving the balance rate of each position, improving the efficiency of employee utilization, and reducing the waste of personnel waiting, ultimately effectively improving the comprehensive labor efficiency of the workshop. At the same time, the present invention effectively connects the various processes in the workshop in series by designing a double-layer coupling conveying unit, and the circulation of couplings no longer requires manual labor or equipment such as cranes and forklifts, which greatly reduces the labor intensity, and greatly reduces the number of work-in-progress between each position, reducing inventory cost backlogs. In addition, the present invention reduces the number of times a lathe operator pushes down the iron filings cart every day by designing an iron filings conveying unit, thereby reducing labor intensity and production auxiliary time.

[0042] In addition, the loading unit of the sawing machine is arranged outside the workshop, and through the mutual cooperation of the base material frame, the first lifting and flipping loading mechanism, the first roller mechanism, the limiting mechanism, the second lifting and flipping loading mechanism, the driving roller mechanism and the tube material clamping mechanism, the flipping loading, the alignment of the tail end of the blank, and the tightening loading of the head and tail ends of the blank are realized. Cutting the material at only one end saves the material. At the same time, the tightening loading improves the accuracy of the loading and avoids the influence of tilted loading on the later cutting and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1This is a layout diagram showing a coupling production line according to a specific embodiment of the present invention;

[0045] Figure 2 for Figure 1 Schematic diagram of the sawing machine feeding unit structure;

[0046] Figure 3 for Figure 1 The schematic diagram of the sawing machine unloading unit, the external cylindrical machine working unit and the marking machine working unit;

[0047] Figure 4 for Figure 3 Cross-sectional view of the purge mechanism structure of the middle sawing machine;

[0048] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the purge mechanism of the sawing machine after removing the pusher assembly;

[0049] Figure 6 for Figure 5 The structural display diagram after removing part of the shell frame structure;

[0050] Figure 7 for Figure 1 Schematic diagram of the structure of the middle coupling conveying unit;

[0051] Figure 8 for Figure 1 Schematic diagram of the structure of the iron chip conveying unit;

[0052] Among them: saw bed loading unit 1, base material frame 1-10, first lifting and turning loading mechanism 1-11, first roller mechanism 1-12, conical roller 1-12-1, limit mechanism 1-13, second lifting and turning loading mechanism 1-14, driving roller mechanism 1-15, long strip roller 1-15-1, pipe material clamping mechanism 1-16;

[0053] Sawing machine unloading unit 2, sawing machine mechanism 2-10, sawing machine purge mechanism 2-11, sawing machine purge base 2-11-1, feeding platform 2-11-2, pushing assembly 2-11-3, upper support frame 2-11-4, material blocking plate assembly 2-11-5, first cylinder 2-11-51, material blocking plate 2-11-52, material blocking rod assembly 2-11-6, second cylinder 2-11-61, material blocking rod 2-11-62, purge assembly 2-11-7, third cylinder 2-11-71, purge nozzle 2-11-72, adjusting cylinder 2-11-8, lifting platform 2-11-9;

[0054] External cylindrical machine working unit 3; marking machine working unit 4; coupling thread processing unit 5; inspection working unit 6; semi-finished product storage unit 7; flaw detection working unit 8; phosphating working unit 9; finished coupling storage unit 10; manipulator working unit 11, manipulator 11-10; iron chip conveying unit 12, iron chip conveyor belt mechanism 12-1, waste pool 12-2; coupling conveying unit 13, first coupling conveying unit 13-10, second coupling conveying unit 13-11, upper output unit 13-11-1, lower conveying unit 13-11-2; coupling blank sorting device 14. DETAILED DESCRIPTION

[0055] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0056] The following is combined with Figures 1 to 8 And specific embodiments, the present invention is described in detail:

[0057] like Figure 1-8 As shown, the present invention provides a coupling production line, which includes a sawing machine loading unit 1, a sawing machine unloading unit 2, an external cylindrical machine working unit 3, a marking machine working unit 4, a coupling thread processing unit 5, an inspection working unit 6, a semi-finished product storage unit 7, a flaw detection working unit 8, a phosphating working unit 9 and a finished coupling storage unit 10, which are sequentially arranged along a preset material conveying direction, a manipulator working unit 11 arranged between the external cylindrical machine working unit 3 and the marking machine working unit 4, and an iron chip conveying unit 12 for waste material conveying arranged next to the coupling thread processing unit 5.

[0058] Among them, the sawing machine loading unit 1 is arranged outside the workshop, which is used to support the loading of the blank material, and includes a base material frame 1-10, a first lifting and flipping loading mechanism 1-11, a first roller mechanism 1-12, a limiting mechanism 1-13, a second lifting and flipping loading mechanism 1-14, a driving roller mechanism 1-15 and a pipe material clamping mechanism 1-16.

[0059] The base material frame 1-10 is used to support the blank, and the first lifting and flipping loading mechanism 1-11 and the first roller mechanism 1-12 are respectively arranged on both sides of the output end of the base material frame 1-10. The blank on the base material frame 1-10 is flipped onto the first roller mechanism 1-12 through the first lifting and flipping loading mechanism 1-11, and a limiting mechanism 1-13 is provided at the tail end of the sawing machine loading unit 1, and the tail end of the blank is aligned through the cooperation of the limiting mechanism 1-13 and the first roller mechanism 1-12.

[0060] The second lifting and flipping feeding mechanism 1-14 and the driving roller mechanism 1-15 are both arranged on one side of the first roller mechanism 1-12, and the blank on the first roller mechanism 1-12 is flipped onto the driving roller mechanism 1-15 by the second lifting and flipping feeding mechanism 1-14, and the tube material clamping mechanism 1-16 is provided at the head and tail ends of the saw bed loading unit 1 for clamping the blank on the driving roller mechanism 1-15.

[0061] During operation, the blank is first placed on the base material rack 1-10, and the blank is correspondingly transported to the output end of the base material rack 1-10; the first lifting and flipping feeding mechanism 1-11 lifts and flips upward, and transfers the blank on the base material rack 1-10 to the first roller mechanism 1-12, and the first roller mechanism 1-12 rotates and transports, so that one end of the blank rotates and rests against the limiting mechanism 1-13 at the tail end of the saw bed feeding unit 1, so that the tail end of the blank is aligned. Next, the second lifting and flipping feeding mechanism 1-14 lifts up and flips up, and transfers the blank on the first roller mechanism 1-12 to the driving roller mechanism 1-15, and the driving roller mechanism 1-15 transports the material to the sawing machine unloading unit 2 for subsequent operations. At the same time, the driving roller mechanism 1-15 in the present invention can place two or more blanks and then load them to the sawing machine unloading unit 2 together, that is, after the first blank is loaded to the driving roller mechanism 1-15, it can be synchronously loaded again. Start the first lifting and flipping feeding mechanism 1-11, and continue to feed the second blank to the driving roller mechanism 1-15. Then, start the tube material clamping mechanism 1-16, and clamp the multiple blanks on the driving roller mechanism 1-15. Synchronously drive the driving roller mechanism 1-15 to synchronously convey the multiple blanks to the sawing machine unloading unit 2. The clamping of the tube material clamping mechanism 1-16 can ensure that when the material is loaded to the sawing machine unloading unit 2, it is easier to be set concentrically with the sawing machine vise, which is beneficial to the subsequent unloading operation.

[0062] The other units are all arranged in the workshop. Correspondingly, the sawing machine unloading unit 2 is used for unloading the blanks and obtaining the coupling blanks. When in use, the sawing machine unloading unit 2 can saw single or multiple blanks, and the sawing machine unloading unit 2 can automatically select the feed length and unload according to the specifications of the blanks.

[0063] The manipulator working area 11 is provided with a manipulator 11-10, and the manipulator 11-10 can convey the coupling blank obtained at the outlet end of the sawing machine unloading unit 2 to the inlet end of the external cylindrical machine working unit 3, and realize the external cylindrical processing of the coupling blank through the external cylindrical machine working unit 3 to obtain the coupling blank. In this embodiment, the external cylindrical machine working unit 3 adopts an STC18 type CNC lathe, and at the same time, the clamping claw of the external cylindrical machine working unit 3 is an internal support clamping claw, which clamps the internal support of the coupling blank, so as to facilitate the cooperation with the manipulator 11-10.

[0064] The manipulator 11-10 can convey the coupling blank obtained at the outlet end of the external cylindrical machine working unit 3 to the inlet end of the marking machine working unit 4, and the marking machine working unit 4 performs the marking operation on the coupling blank to obtain the marked coupling blank. After the marking is completed, the manipulator 11-10 continues to transfer the marked coupling blank to the first coupling conveying unit 13-10, and the first coupling conveying unit 13-10 transfers it to the coupling thread processing unit 5 for subsequent thread processing operations, etc. In this embodiment, a marking machine base is installed at the bottom of the marking machine working unit 4 to increase the height of the marking machine working unit 4, so as to facilitate the cooperation between the marking machine working unit 4 and the manipulator 11-10.

[0065] The marking machine working unit 4, the coupling thread processing unit 5 and the inspection working unit 6 are connected through the coupling conveying unit 13, and the coupling conveying unit 13 includes a first coupling conveying unit 13-10 and a second coupling conveying unit 13-11. In this embodiment, the first coupling conveying unit 13-10 and the second coupling conveying unit 13-11 form an L-shaped coupling conveying unit; the first coupling conveying unit 13-10 is arranged between the marking machine working unit 4 and the coupling thread processing unit 5, and is used to transfer the coupling blank after marking at the marking machine working unit 4. To the inlet end of the coupling thread processing unit 5; the second coupling conveying unit 13-11 includes an upper output unit 13-11-1 and a lower conveying unit 13-11-2, the upper conveying unit 13-11-1 conveys the marked coupling blank at the inlet end of the coupling thread processing unit 5 to the respective lathe devices of the coupling thread processing unit 5, performs thread processing, and obtains the coupling material after thread processing; the lower conveying unit 13-11-2 is used to transfer the coupling material after thread processing to the detection platform of the inspection work unit 6. The coupling conveying unit 13 is divided into an upper and lower intelligent transmission line, which is the basis for upgrading the coupling workshop from the original discrete production mode to the assembly line production mode, solves the problem of manual handling of couplings by personnel, greatly reduces labor intensity, and improves the circulation efficiency of couplings.

[0066] It should be noted that a hoop blank sorting device 14 can be provided on the upper output unit 13-11-1 of the hoop conveying unit 13 for sorting operations; correspondingly, a full material detection photoelectric switch is provided on the lower conveying unit 13-11-2 for detecting whether the material is full. During operation, the coupling blank after marking is transmitted to the upper output unit 13-11-1 corresponding to the coupling thread processing unit 5 through the first coupling conveying unit 13-10, and then transmitted to the position of the coupling blank sorting device 14. A photoelectric switch for detecting full material is arranged on the lower conveying unit 13-11-2 to detect the amount of coupling material after thread processing. At the same time, the information is fed back to the coupling blank sorting device 14. If the material is not full, the coupling blank sorting device 14 will directly discharge the coupling blank after marking to the waiting area of ​​the first lathe device of the coupling thread processing unit 5. If the material is full, the coupling blank sorting device 14 will transmit the coupling blank after marking to the waiting areas of several other lathe devices at the back for thread processing. After completing the thread processing, the operator will transfer the coupling material after thread processing to the inspection platform of the inspection work unit 6 through the lower conveying unit 13-11-2, and arrange for centralized inspection at the later stage. Correspondingly, a balancing crane can be set at the position of the coupling thread processing unit 5, and the balancing crane can assist the operator in loading and unloading operations, such as hoisting the coupling blank after marking to the processing area of ​​the lathe device, and the operator transfers the coupling blank after marking to the lathe device through the balancing crane for clamping, and then performs thread processing and other operations; in this embodiment, the lathe device is a 63B type CNC lathe. Or the balancing crane can assist the operator in transferring the coupling material after thread processing to the lower conveying unit 13-11-2 for unloading operations, and the balancing crane can assist in loading and unloading, thereby reducing the labor intensity of the workers. In the present invention, the structure of the hoop blank sorting device 14 is not specifically limited, and it can adopt the existing technology or be designed by those skilled in the art according to actual conditions, as long as the sorting operation of the above functions can be realized.

[0067] Some detection switches can also be set on the upper output unit 13-11-1 to automatically identify the number of marked coupling blanks in the processing area of ​​the lathe device, and transfer the marked coupling blanks to the material-deficient position according to the number, so as to prevent the lathe device from stopping due to waiting for materials and improve production efficiency.

[0068] The inspection unit 6 is a centralized inspection area for coupling materials after thread processing. It is set at the end of the entire production process transmission line and can be inspected by several inspectors, which can greatly reduce the labor intensity of workers and save labor costs. The lower conveying unit 13-11-2 transfers the coupling materials after thread processing to the inspection platform of the inspection unit 6, and the inspectors conduct inspections. If the inspection is qualified, the inspection results are input into the entire control system of the coupling production line, and the qualified products are stored in the semi-finished product storage unit 7 accordingly, waiting for the later inspection process. Unqualified products can be directly transported by a trolley, or stored in the unqualified product storage unit for unified and centralized recycling and processing.

[0069] The semi-finished product storage unit 7 may include a semi-finished product storage area for storing coupling materials after testing qualified thread processing and a tool storage area for storing tools. The tools are stored in different areas, making the entire workshop tidier and the items arranged in order.

[0070] The flaw detection unit 8 is used for flaw detection of the coupling material after thread processing. For example, the inspection personnel conduct magnetic particle flaw detection on the appearance of the coupling, and after passing the inspection, it is transferred to the phosphating unit 9. The phosphating unit 9 performs phosphating treatment on the coupling material after thread processing. After the phosphating treatment is completed, it is transferred to the finished coupling storage unit 10 to complete the processing of the coupling production line.

[0071] It should be noted that balance cranes can be installed at the inspection work unit 6, semi-finished product storage unit 7, flaw detection work unit 8, phosphating work unit 9 and finished product coupling storage unit 10 to correspondingly transfer materials between adjacent units and reduce the labor intensity of workers. There is no specific limitation on the specific setting position and structure of the corresponding balance crane, which can be designed and selected by technical personnel in this field according to actual conditions, and all fall within the protection scope of the present invention.

[0072] The coupling production line of the present invention improves the degree of equipment automation by optimizing the process layout and combining a manipulator, thereby effectively reducing the total number of employees in the workshop; and by reasonably allocating the work of personnel in each position, improving the balance rate of each position, improving the efficiency of employee utilization, and reducing the waste of personnel waiting, ultimately effectively improving the overall labor efficiency of the workshop. At the same time, the present invention effectively connects the various processes in the workshop in series by designing a double-layer coupling conveying unit 13, and the circulation of couplings no longer requires manual labor or equipment such as cranes and forklifts, which greatly reduces the labor intensity, and greatly reduces the number of work-in-progress between positions, reducing inventory cost backlogs. In addition, the present invention reduces the number of times a lathe operator pushes down the iron filings cart every day by designing an iron filings conveying unit 12, thereby reducing labor intensity and production auxiliary time.

[0073] In addition, the sawing machine loading unit 1 is arranged outside the workshop, and through the mutual cooperation of the base material frame 1-10, the first lifting and flipping loading mechanism 1-11, the first roller mechanism 1-12, the limiting mechanism 1-13, the second lifting and flipping loading mechanism 1-14, the driving roller mechanism 1-15 and the tube material clamping mechanism 1-16, the flipping loading, the alignment of the tail end of the blank, and the tightening loading of the head and tail ends of the blank are realized. Only one end is used to cut the material to save material. At the same time, the tightening loading improves the accuracy of the loading and avoids the influence of tilted loading on the later cutting and unloading.

[0074] Furthermore, the sawing machine loading unit 1 may be provided in plurality. For example, in the present embodiment, two sawing machine loading units 1 are provided side by side to improve the loading efficiency.

[0075] Correspondingly, each of the saw bed loading units 1 has two spaced-apart base material racks 1-10, two of the first lifting and flipping loading mechanisms 1-11, at least two of the first roller mechanisms 1-12, one of the limiting mechanisms 1-13, two of the second lifting and flipping loading mechanisms 1-14, at least two of the driving roller mechanisms 1-15 and two of the pipe material abutting mechanisms 1-16. The specific layout is as follows: Figure 1 and 2 shown.

[0076] Among them, the two first lifting and flipping loading mechanisms 1-11 are respectively arranged on the sides of the two output ends of the base material racks 1-10, and the first lifting and flipping loading mechanism 1-11 is located between the output end of the base material rack 1-10 and the first roller mechanism 1-12; the two second lifting and flipping loading mechanisms 1-14 are respectively arranged on the sides of the two output ends of the base material racks 1-10, and the second lifting and flipping loading mechanism 1-14 is located between the first roller mechanism 1-12 and the driving roller mechanism 1-15.

[0077] Specifically, the upper surface of the base material rack 1-10 is tilted, and a first limiting protrusion is set at the output end of the base material rack 1-10 to prevent the blank from sliding off the output end of the base material rack 1-10; it should be noted that the upper surface of the base material rack 1-10 is only slightly tilted, and the specific inclination can be designed by those skilled in the art according to actual conditions, and is not specifically limited in the present invention. At the same time, the upper surface of the first lifting and flipping feeding mechanism 1-11 is also tilted, and the tilting direction of the first lifting and flipping feeding mechanism 1-11 is the same as the tilting direction of the base material rack 1-10, so that the first lifting and flipping feeding mechanism 1-11 can lift the blank and slightly flip it at a certain angle to transfer the blank from the base material rack 1-10 to the first roller mechanism 1-12.

[0078] The first roller mechanism 1-12 includes a first rotating shaft, and two oppositely arranged conical rollers 1-12-1 mounted on the first rotating shaft. The two conical rollers 1-12-1 are contacted and connected at their small ends. The two conical rollers 1-12-1 are oppositely arranged, so that the first roller mechanism 1-12 is designed with a low middle part and high ends, which is conducive to placing the blank in the center of the first roller mechanism 1-12 and facilitating transportation.

[0079] The upper surface of the second lifting and flipping loading mechanism 1-14 is inclined, and the inclination direction of the second lifting and flipping loading mechanism 1-14 is the same as the inclination direction of the base material rack 1-10, so that the materials are flipped and loaded in the direction away from the output end of the base material rack 1-10.

[0080] The driving roller mechanism 1-15 includes a second rotating shaft and a long roller 1-15-1 mounted on the second rotating shaft. The long roller 1-15-1 can accommodate multiple blanks arranged side by side. Both ends of the long roller 1-15-1 are provided with second limiting protrusions to prevent the blanks from falling off from both ends.

[0081] The pipe material clamping mechanism 1-16 can be designed with a cylinder + roller to achieve the clamping of multiple blanks arranged side by side on the long roller 1-15-1 of the driving roller mechanism 1-15. At the same time, the roller clamping design can avoid excessive extrusion force during clamping, which may cause damage to the blank.

[0082] Furthermore, the sawing machine unloading unit 2 includes at least one sawing machine mechanism 2-10 for unloading the blank material, and a sawing machine blowing mechanism 2-11 arranged beside the sawing machine mechanism 2-10 and used for blowing the coupling blank material.

[0083] The output end of the sawing machine mechanism 2-10 is a sloped outlet, and the sloped outlet is arranged opposite to the inlet of the sawing machine blowing mechanism 2-11, so that the coupling blank obtained after the sawing machine mechanism 2-10 is unloaded is transferred to the sawing machine blowing mechanism 2-11 for blowing operation. The output end of the sawing machine mechanism 2-10 is set as a sloped outlet, so that the coupling blank obtained after unloading can directly and automatically roll down to the inlet of the sawing machine blowing mechanism 2-11, and the corresponding additional sawing machine blowing mechanism 2-11 is used for blowing operation on the coupling blank.

[0084] Specifically, the sawing machine purge mechanism 2-11 includes a sawing machine purge base 2-11-1, a feeding platform 2-11-2 arranged on the sawing machine purge base 2-11-1, a pushing assembly 2-11-3 arranged on the feeding platform 2-11-2, an upper support frame 2-11-4 arranged directly above the feeding platform 2-11-2, and a material baffle plate assembly 2-11-5, a material blocking rod assembly 2-11-6 and a purge assembly 2-11-7 arranged on the upper support frame 2-11-4.

[0085] Among them, the feeding platform 2-11-2 has an inlet position, a purge position and an outlet position along the preset coupling blank conveying direction, and the pushing assembly 2-11-3 is arranged at the inlet position of the feeding platform 2-11-2, and is used to push the coupling blank from the inlet position to the outlet position; in this embodiment, the feeding platform 2-11-2 is inclined, with the inlet position being high and the outlet position being slightly low, and can roll directly relying on its own gravity.

[0086] The material baffle plate assembly 2-11-5 and the material blocking rod assembly 2-11-6 are arranged on both sides above the purging position, and are used to limit the coupling blank located at the purging position so that there is only one coupling blank at the purging position.

[0087] The purge component 2-11-7 is arranged at a position opposite to the purge position, and the purge component 2-11-7 purges along the axial direction of the coupling blank and performs a purge operation on the center of the coupling blank.

[0088] The material baffle plate assembly 2-11-5 includes a first cylinder 2-11-51 and a material baffle plate 2-11-52. The first cylinder 2-11-51 is installed on the upper support frame 2-11-4. The material baffle plate 2-11-52 has a first connecting end, a second connecting end and a stop end. The first connecting end of the material baffle plate 2-11-52 is connected to the telescopic end of the first cylinder 2-11-51, and the second connecting end is hingedly connected to the upper support frame 2-11-4. The stop end is used to limit one side of the coupling blank.

[0089] The material blocking rod assembly 2-11-6 includes a second cylinder 2-11-61 and a material blocking rod 2-11-62. The second cylinder 2-11-61 is installed on the upper support frame 2-11-4. One end of the material blocking rod 2-11-62 is connected to the telescopic end of the second cylinder 2-11-61. A roller is arranged on the other end of the material blocking rod 2-11-62 for limiting the other side of the coupling blank. The roller limiting can avoid damage to the coupling blank caused by excessive limiting.

[0090] In addition, an adjusting cylinder 2-11-8 can be vertically installed on the top of the upper support frame 2-11-4, and a lifting platform 2-11-9 can be slidably installed on the upper support frame 2-11-4. The telescopic end of the adjusting cylinder 2-11-8 is connected to the lifting platform 2-11-9, driving the lifting platform 2-11-9 to slide up and down to adjust the lifting platform 2-11-9, and correspondingly, the first cylinder 2-11-51 in the material blocking plate assembly 2-11-5 is fixedly installed on the lifting platform 2-11-9, and the second connecting end of the material blocking plate 2-11-52 in the material blocking plate assembly 2-11-5 is hingedly connected to the lifting platform 2-11-9. The second cylinder 2-11-61 in the material blocking rod assembly 2-11-6 is fixedly installed on the lifting platform 2-11-9. At this time, the distance between the feeding platform 2-11-2 and the baffle plate assembly 2-11-5 can be adjusted by adjusting the lifting platform 2-11-9, so that the sawing machine blowing mechanism 2-11 can be suitable for blowing different specifications of coupling diameters, and has a wider range of use.

[0091] Specifically, the purge assembly 2-11-7 includes a third cylinder 2-11-71 and a purge nozzle 2-11-72, the third cylinder 2-11-71 is fixedly mounted on one side of the upper support frame 2-11-4, and the telescopic direction of the third cylinder 2-11-71 is concentrically arranged with the axis of the coupling blank, the purge nozzle 2-11-72 is connected to the telescopic end of the third cylinder 2-11-71, and is used to extend the purge nozzle 2-11-72 into the center of the coupling blank for purge; the purge nozzle 2-11-72 is a three-leaf boomerang nozzle, which makes the purge effect better. The specific structure of the three-leaf boomerang nozzle is not limited in the present invention, and the finished products currently sold on the market can be used, all of which belong to the protection scope of the present invention.

[0092] When in use, the pushing assembly 2-11-3 pushes the coupling blank to automatically roll to the purge position, and the regulating cylinder 2-11-8 drives the baffle plate assembly 2-11-5 and the blocking rod assembly 2-11-6 to descend, so that the lifting platform 2-11-9 is located at a suitable height. Next, the first cylinder 2-11-51 in the baffle plate assembly 2-11-5 is started to fine-tune the position of the baffle plate 2-11-52 to achieve the limit on one side of the coupling blank. At the same time, the second cylinder 2-11-61 in the blocking rod assembly 2-11-6 is started to fine-tune the position of the blocking rod 2-11-62 to achieve the limit on the other side of the coupling blank, thereby limiting only one coupling blank in the purge position. Then, start the third cylinder 2-11-71 in the purge assembly 2-11-7, extend the purge nozzle 2-11-72 into the center of the coupling blank, and perform the purge operation. After the purge operation is completed, the material blocking plate 2-11-52 and the material blocking rod 2-11-62 are raised, and the coupling blank rolls to the exit position for subsequent processing operations.

[0093] Furthermore, the iron chip conveying unit 12 is arranged at the waste outlet side of each lathe device of the coupling thread processing unit 5, and is used to receive the waste generated by the lathe device during processing.

[0094] Meanwhile, the scrap iron conveying unit 12 includes a scrap iron conveyor belt mechanism 12-1 and a waste pool 12-2 arranged at one end of the scrap iron conveyor belt mechanism 12-1, and the waste pool 12-2 is used for centralized recycling of waste materials. The waste pool 12-2 is arranged at the end of the scrap iron conveyor belt mechanism 12-1, and only one forklift is needed per shift, which reduces the number of manual scrap iron removal per shift, not only reduces the labor intensity of employees, but also effectively reduces the auxiliary time of production.

[0095] The use process and working principle of the present invention:

[0096] First, the blank is placed on the base material rack 1-10 through an external pipe grabber, and the blank is transported to the output end of the base material rack 1-10 accordingly; the first lifting and flipping loading mechanism 1-11 lifts and flips upward, and transfers the blank on the base material rack 1-10 to the first roller mechanism 1-12, and the first roller mechanism 1-12 rotates and transports, so that one end of the blank rotates and rests against the limiting mechanism 1-13 at the tail end of the saw bed loading unit 1, so that the tail end of the blank is aligned. Next, the second lifting and flipping feeding mechanism 1-14 lifts up and flips up, and transfers the blank on the first roller mechanism 1-12 to the driving roller mechanism 1-15, and the driving roller mechanism 1-15 transports the material to the sawing machine unloading unit 2 for subsequent operations. At the same time, the driving roller mechanism 1-15 in the present invention can place two or more blanks and then load them to the sawing machine unloading unit 2 together, that is, after the first blank is loaded to the driving roller mechanism 1-15, it can be synchronously loaded again. Start the first lifting and flipping feeding mechanism 1-11, and continue to feed the second blank to the driving roller mechanism 1-15. Then, start the tube material clamping mechanism 1-16, and clamp the multiple blanks on the driving roller mechanism 1-15. Synchronously drive the driving roller mechanism 1-15 to synchronously convey the multiple blanks to the sawing machine unloading unit 2. The clamping of the tube material clamping mechanism 1-16 can ensure that when the material is loaded to the sawing machine unloading unit 2, it is easier to be set concentrically with the sawing machine vise, which is beneficial to the subsequent unloading operation.

[0097] Next, the sawing machine mechanism 2-10 that is transferred to the sawing machine unloading unit 2 unloads the blank material and obtains the coupling blank material. After completing the unloading operation, the sawing machine blowing mechanism 2-11 completes the operation of blowing away the iron filings, and the specific steps are as follows: the pushing assembly 2-11-3 pushes the coupling blank material to automatically roll to the blowing position, and the regulating cylinder 2-11-8 drives the baffle plate assembly 2-11-5 and the blocking rod assembly 2-11-6 to descend, so that the lifting platform 2-11-9 is at a suitable height. Next, start the first cylinder 2-11-51 in the material blocking plate assembly 2-11-5, fine-tune the position of the material blocking plate 2-11-52, and limit one side of the butt-joint blank. At the same time, start the second cylinder 2-11-61 in the material blocking rod assembly 2-11-6, fine-tune the position of the material blocking rod 2-11-62, and limit the other side of the butt-joint blank, thereby limiting only one butt-joint blank in the purge position. Then, start the third cylinder 2-11-71 in the purge assembly 2-11-7, extend the purge nozzle 2-11-72 to the center of the butt-joint blank, and perform the purge operation. After the purge operation is completed, the material blocking plate 2-11-52 and the material blocking rod 2-11-62 are raised, and the butt-joint blank rolls to the exit position.

[0098] Next, the manipulator 11-10 conveys the coupling blank obtained from the outlet of the sawing machine unloading unit 2 after the purging operation to the inlet of the external cylindrical machine working unit 3, and the external cylindrical machine working unit 3 performs external cylindrical processing on the coupling blank to obtain the coupling blank. Then, the manipulator 11-10 conveys the coupling blank obtained from the outlet of the external cylindrical machine working unit 3 to the inlet of the marking machine working unit 4, and the marking machine working unit 4 performs the marking operation on the coupling blank to obtain the coupling blank after marking. After the marking is completed, the manipulator 11-10 continues to transfer the coupling blank after marking to the first coupling conveying unit 13-10, and the first coupling conveying unit 13-10 transfers it to the coupling thread processing unit 5 for subsequent thread processing operations.

[0099] Then, the coupling material after thread processing by the coupling thread processing unit 5 is transferred to the inspection platform of the inspection work unit 6 through the lower conveying unit 13-11-2 for centralized inspection, and the qualified products are placed in the semi-finished product storage unit 7.

[0100] Finally, the semi-finished products placed in the semi-finished product storage unit 7 are sequentially transferred to the flaw detection unit 8 for flaw detection and the phosphating unit 9 for phosphating treatment. The final qualified finished products are placed in the finished product coupling storage unit 10 to facilitate the unified processing at a later stage.

[0101] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A coupling production line, characterized in that: It includes a sawing machine loading unit, a sawing machine unloading unit, an external cylindrical machine working unit, a marking machine working unit, a coupling thread processing unit, an inspection working unit, a semi-finished product storage unit, a flaw detection working unit, a phosphating working unit and a finished coupling storage unit arranged in sequence along a preset material conveying direction, a manipulator working unit arranged between the external cylindrical machine working unit and the marking machine working unit, and an iron chip conveying unit for waste material conveying arranged beside the coupling thread processing unit; The saw bed loading unit includes a base material frame, a first lifting and flipping loading mechanism, a first roller mechanism, a limiting mechanism, a second lifting and flipping loading mechanism, a driving roller mechanism and a tube material pressing mechanism; The base material frame is used to support the blank, the first lifting and flipping feeding mechanism and the first roller mechanism are respectively arranged at both sides of the output end of the base material frame, the blank on the base material frame is flipped onto the first roller mechanism by the first lifting and flipping feeding mechanism, and a limiting mechanism is provided at the tail end of the feeding unit of the sawing machine, and the tail end of the blank is aligned by the cooperation of the limiting mechanism and the first roller mechanism; The second lifting and flipping feeding mechanism and the driving roller mechanism are both arranged on one side of the first roller mechanism, and the blank on the first roller mechanism is flipped onto the driving roller mechanism by the second lifting and flipping feeding mechanism, and the tube material clamping mechanism is arranged at the head end and the tail end of the feeding unit of the saw bed, for clamping the blank on the driving roller mechanism; The sawing machine blanking unit is used for blanking the blank and obtaining the coupling blank; The sawing machine unloading unit comprises at least one sawing machine mechanism for unloading the blank material, and a sawing machine blowing mechanism arranged beside the sawing machine mechanism for blowing the coupling blank material; The output end of the sawing machine mechanism is a sloped outlet, and the sloped outlet is arranged opposite to the inlet of the sawing machine purge mechanism, so that the coupling blank obtained after the sawing machine mechanism unloads the material is transferred to the sawing machine purge mechanism for a purge operation; The sawing machine purge mechanism comprises a sawing machine purge base, a feeding platform arranged on the sawing machine purge base, a material pushing assembly arranged on the feeding platform, an upper support frame arranged directly above the feeding platform, a material blocking plate assembly, a material blocking rod assembly and a purge assembly arranged on the upper support frame; Wherein, the feeding platform has an inlet position, a purge position and an outlet position along the preset coupling blank conveying direction, and the pushing assembly is arranged at the inlet position of the feeding platform, and is used to push the coupling blank from the inlet position to the outlet position; The material blocking plate assembly and the material blocking rod assembly are arranged on both sides above the purging position, and are used to limit the coupling blank located at the purging position, so that there is only one coupling blank at the purging position; The purge assembly is arranged at a position opposite to the purge position, and the purge assembly purges along the axis direction of the coupling blank; The manipulator working unit is provided with a manipulator, and the manipulator can convey the coupling blank obtained at the outlet end of the sawing machine unloading unit to the inlet end of the external cylindrical machine working unit, so as to realize external cylindrical processing of the coupling blank and obtain the coupling blank; The manipulator can transport the coupling blank obtained at the outlet end of the external cylindrical machine working unit to the inlet end of the marking machine working unit, implement the marking operation on the coupling blank, and obtain the coupling blank after marking; The marking machine working unit, the coupling thread processing unit and the inspection working unit are connected through a coupling conveying unit, and the coupling conveying unit includes a first coupling conveying unit and a second coupling conveying unit, and the first coupling conveying unit and the second coupling conveying unit form an L-shaped coupling conveying unit; the first coupling conveying unit is arranged between the marking machine working unit and the coupling thread processing unit, and is used to transfer the coupling blank after marking at the marking machine working unit to the inlet end of the coupling thread processing unit; the second coupling conveying unit includes an upper output unit and a lower conveying unit, and the upper conveying unit correspondingly conveys the coupling blank after marking at the inlet end of the coupling thread processing unit to each lathe device of the coupling thread processing unit, performs thread processing, and obtains the coupling material after thread processing; the lower conveying unit is used to transfer the coupling material after thread processing to the detection platform of the inspection working unit; The flaw detection work unit is used for flaw detection of the coupling material after thread processing, and the phosphating work unit is used for phosphating the coupling material after thread processing.

2. The coupling production line according to claim 1, characterized in that: The sawing machine loading unit is provided with a plurality of units; Each of the saw bed loading units comprises two spaced-apart base material racks, two of the first lifting and flipping loading mechanisms, at least two of the first roller mechanisms, one of the limiting mechanisms, two of the second lifting and flipping loading mechanisms, at least two of the driving roller mechanisms and two of the pipe material abutting mechanisms; Wherein, the two first lifting and flipping feeding mechanisms are respectively arranged beside the output ends of the two base material racks, and the first lifting and flipping feeding mechanism is located between the output end of the base material rack and the first roller mechanism; The two second lifting and flipping feeding mechanisms are respectively arranged on the sides of the two output ends of the base material racks, and the second lifting and flipping feeding mechanisms are located between the first roller mechanism and the driving roller mechanism.

3. The coupling production line according to claim 2, characterized in that: The upper surface of the base material rack is inclined, and a first limiting protrusion is provided at the output end of the base material rack; The upper surface of the first lifting and turning feeding mechanism is inclined, and the inclination direction of the first lifting and turning feeding mechanism is the same as the inclination direction of the base material rack; The first roller mechanism comprises a first rotating shaft, and two oppositely arranged conical rollers sleeved on the first rotating shaft, and the small ends of the two conical rollers are in contact with each other; The upper surface of the second lifting and flipping feeding mechanism is inclined, and the inclination direction of the second lifting and flipping feeding mechanism is the same as the inclination direction of the base material rack; The driving roller mechanism comprises a second rotating shaft and a long roller sleeved on the second rotating shaft, and both ends of the long roller are provided with second limiting protrusions.

4. The coupling production line according to claim 1, characterized in that: The material baffle plate assembly includes a first cylinder and a material baffle plate, the first cylinder is installed on the upper support frame, the material baffle plate has a first connecting end, a second connecting end and a stop end, the first connecting end of the material baffle plate is connected to the telescopic end of the first cylinder, the second connecting end is hingedly connected to the upper support frame, and the stop end is used to limit one side of the coupling blank.

5. The coupling production line according to claim 4, characterized in that: The material blocking rod assembly includes a second cylinder and a material blocking rod. The second cylinder is installed on the upper support frame. One end of the material blocking rod is connected to the telescopic end of the second cylinder. A roller is provided at the other end of the material blocking rod for limiting the other side of the coupling blank.

6. The coupling production line according to claim 5, characterized in that: An adjusting cylinder is vertically installed on the top of the upper support frame, and a lifting platform is slidably installed on the upper support frame. The telescopic end of the adjusting cylinder is connected to the lifting platform to drive the lifting platform to slide and adjust upward; Correspondingly, the first cylinder in the baffle plate assembly is fixedly mounted on the lifting platform, and the second connecting end in the baffle plate assembly is hingedly connected to the lifting platform; The second cylinder in the material blocking rod assembly is fixedly installed on the lifting platform.

7. The coupling production line according to claim 6, characterized in that: The purge assembly includes a third cylinder and a purge nozzle. The third cylinder is fixedly mounted on one side of the upper support frame, and the telescopic direction of the third cylinder is concentrically arranged with the axis of the coupling blank. The purge nozzle is connected to the telescopic end of the third cylinder and is used to extend into the center of the coupling blank for purge. The purge nozzle is a three-leaf boomerang nozzle.

8. The coupling production line according to claim 1, characterized in that: The iron chip conveying unit is arranged at the waste outlet side of each lathe device of the coupling thread processing unit, and is used to receive the waste generated by the lathe device during processing; The iron chip conveying unit comprises an iron chip conveying belt mechanism and a waste pool arranged at one end of the iron chip conveying belt mechanism, and the waste pool is used for centralized recycling of waste materials.

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