Automatic cleaning and lubricating equipment and method based on metal die forging

Abstract

The invention relates to the technical field of metal die forging, in particular to automatic cleaning and lubricating equipment and method based on metal die forging. The forging process is completed in response to a metal blank in the die forging process, the metal blank is taken away from a die used for conducting the forging process on the metal blank, and an operation unit comprising a blowing opening is controlled to move to the position of the die according to a preset path; and adjusting the injection direction of the injection port to the internal exposed surface of the mold, and controlling the adjusted injection port to sequentially inject high-pressure gas and spray a lubricant to the upper exposed surface and the lower exposed surface of the mold so as to complete cleaning and lubrication of the internal exposed surface of the mold. According to the die forging device, the exposed surface in the die is automatically cleaned and lubricated in the whole die forging process, the die forging efficiency is improved, the quality and consistency of die forgings are enhanced, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of metal forging technology, and in particular to an automatic cleaning and lubrication device and method based on metal forging. Background Technology

[0002] In the die forging process, the cleanliness of the die surface is often one of the key factors affecting the surface quality of the forgings. If the metal oxide scale generated during the forging process is not cleaned in a timely manner, and if the lubricant coating on the die surface is insufficient, it will not only cause surface quality defects in the forgings, but may also damage the die and reduce its service life in severe cases. Therefore, keeping the die surface clean during the forging process is of paramount importance.

[0003] In traditional die forging processes, the cleaning of oxide scale on the die surface and the application of lubricant both rely on manual operation. This operation has the following main defects: (1) The efficiency of manual operation is low, which affects the production rhythm, especially during continuous large-scale production operations; (2) The die surface temperature is high during production, which poses a great safety hazard to manual operation; (3) It is difficult to guarantee the uniformity of manual spraying. Summary of the Invention

[0004] Purpose of the invention: To provide an automatic cleaning and lubrication equipment and method based on metal die forging, so as to solve the problem that cleaning and lubrication cannot be automated in the die forging process, so as to achieve the effect of automatic cleaning and lubrication spraying without human intervention in the die forging process, thereby improving the efficiency of the die forging process and saving costs.

[0005] Technical solution: An automated cleaning and lubrication device based on metal die forging includes: a robotic arm base 1, a rotating shaft 2, a rotating motor 4, an integrated nozzle 5, a multi-degree-of-freedom robotic arm body 6, two robotic arm rotating motors 7, an air passage 8, a hydraulic passage 9, a liquid storage tank 12, and a gas cylinder 13. The output end of the rotary motor 4 is connected to one end of the rotary shaft 2, and the other end of the rotary shaft 2 is rotatably connected to the robotic arm base 1. A shelf is fixed on the outside of the rotary shaft 2, and the rotary motor 4 is placed on the shelf. A support arm is provided on the multi-degree-of-freedom robotic arm body 6. The two ends of the support arm are respectively connected to the side of the shelf and the shaft of the multi-degree-of-freedom robotic arm body 6. The output ends of the two robotic arm rotary motors 7 are used to control the rotation of the support arm and the rotation of the multi-degree-of-freedom robotic arm body 6 respectively. The liquid storage tank 12 is connected to the integrated nozzle 5 fixed at the end of the multi-degree-of-freedom robotic arm body 6 through the liquid passage 9. The gas cylinder 13 is connected to the integrated nozzle 5 fixed at the end of the multi-degree-of-freedom robotic arm body 6 through the gas passage 8.

[0006] Furthermore, a metering pump 10 is installed on the storage tank 12.

[0007] Furthermore, a barometer 11 is installed on the gas cylinder 13.

[0008] Furthermore, it also includes a PLC control module 3 placed on the shelf, which is electrically connected to the control terminals of the rotary motor 4 and the robotic arm rotary motor 7.

[0009] Furthermore, it also includes a temperature sensor and a gravity sensor installed on the lower mold on the forging table, the output terminals of which are connected to the PLC control module 3.

[0010] An automated cleaning and lubrication method based on metal forging, the method being performed using the aforementioned equipment, the method comprising: 11) In response to the completion of the forging process of the metal billet during the die forging process and the removal of the metal billet from the mold used for forging the metal billet, the integrated nozzle 5 is controlled to move to the mold position according to a preset path. 12) Adjust the blowing direction of the integrated nozzle 5 to the inner exposed surface of the mold, and control the adjusted nozzle to sequentially blow gas and spray lubricant onto the upper and lower exposed surfaces of the mold to complete the cleaning and lubrication of the inner exposed surface of the mold.

[0011] Furthermore, step 11) specifically includes: Obtain the surface temperature and pressure value of the mold platform; When the pressure value is less than the preset pressure threshold for confirming the separation of the upper and lower dies during the forging process, and the surface temperature is less than the preset temperature threshold for confirming the removal of the metal billet, the forging process of the metal billet is determined to be complete.

[0012] Furthermore, it also includes: after cleaning and lubrication are completed, the PLC control module 3 controls the movement of the multi-degree-of-freedom robotic arm body 6, so that the integrated nozzle 5 moves away from the forging table.

[0013] Beneficial effects: Compared with the prior art, the present invention, in response to the completion of the forging process of the metal billet and the removal of the metal billet from the mold used for forging the metal billet, controls the operation unit including the spray nozzle to move to the mold position according to a preset path; adjusts the spray direction of the spray nozzle to the internal exposed surface of the mold, and controls the adjusted spray nozzle to sequentially spray gas and apply lubricant to the upper and lower exposed surfaces of the mold to complete the cleaning and lubrication of the internal exposed surfaces of the mold. This achieves fully automatic cleaning and lubrication of the mold interior during the forging process, improves forging efficiency, enhances the quality and consistency of forged parts, and reduces costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A flowchart is shown for an automated cleaning and lubrication method based on metal forging according to one aspect of the present invention; Figure 2 The diagram illustrates the structure of an automatic cleaning and lubrication device based on metal forging according to another aspect of the present invention in a practical application scenario. Figure 3 A schematic diagram of the forging table in a practical application scenario is shown, according to another aspect of the present invention, an automatic cleaning and lubrication device based on metal die forging. The reference numerals in the figures include: 1-Robotic arm base; 2-Rotating shaft; 3-PLC control module; 4-Rotating motor; 5-Integrated nozzle; 6-Multi-degree-of-freedom robotic arm body; 7-Robotic arm rotating motor; 8-Air circuit; 9-Liquid circuit; 10-Metering pump; 11-Barometer; 12-Liquid storage tank; 13-Gas cylinder; 14-Forging table base; 15-Forging die table surface; 16-Lower die; 17-Support; 18-Upper die; A - Temperature sensor; B - Gravity sensor. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setups and methods set forth below, but covers any improvements, substitutions, and modifications to structures, methods, and devices without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description to avoid unnecessarily obscuring the invention.

[0018] In the description of this invention, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the invention, and should not be construed as limiting the invention. Furthermore, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0020] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0022] The inventive concept of this invention is to solve the problem that cleaning and lubrication operations cannot be automatically completed during the die forging process. The invention utilizes a robotic arm (i.e., an operating unit) containing a spray nozzle to sequentially perform coarse positioning, precision purging, and atomized spraying operations. After each execution, the robotic arm is reset to facilitate subsequent cyclic execution. This method efficiently completes the die forging process of metal workpieces and is also beneficial for engineering applications, with broad application prospects.

[0023] An automated cleaning and lubrication device based on metal die forging includes: a robotic arm base 1, a rotating shaft 2, a rotating motor 4, an integrated nozzle 5, a multi-degree-of-freedom robotic arm body 6, two robotic arm rotating motors 7, an air passage 8, a hydraulic passage 9, a liquid storage tank 12, and a gas cylinder 13. The output end of the rotary motor 4 is connected to one end of the rotary shaft 2, and the other end of the rotary shaft 2 is rotatably connected to the robotic arm base 1. A shelf is fixed on the outside of the rotary shaft 2, and the rotary motor 4 is placed on the shelf. A support arm is provided on the multi-degree-of-freedom robotic arm body 6. The two ends of the support arm are respectively connected to the side of the shelf and the shaft of the multi-degree-of-freedom robotic arm body 6. The output ends of the two robotic arm rotary motors 7 are used to control the rotation of the support arm and the rotation of the multi-degree-of-freedom robotic arm body 6 respectively. The liquid storage tank 12 is connected to the integrated nozzle 5 fixed at the end of the multi-degree-of-freedom robotic arm body 6 through the liquid passage 9. The gas cylinder 13 is connected to the integrated nozzle 5 fixed at the end of the multi-degree-of-freedom robotic arm body 6 through the gas passage 8.

[0024] Furthermore, a metering pump 10 is installed on the storage tank 12.

[0025] Furthermore, a barometer 11 is installed on the gas cylinder 13.

[0026] Furthermore, it also includes a PLC control module 3 placed on the shelf, which is electrically connected to the control terminals of the rotary motor 4 and the robotic arm rotary motor 7.

[0027] Furthermore, it also includes a temperature sensor and a gravity sensor installed on the lower mold on the forging table, the output terminals of which are connected to the PLC control module 3.

[0028] An automated cleaning and lubrication method based on metal forging, the method being performed using the aforementioned equipment, the method comprising: 11) In response to the completion of the forging process of the metal billet during the die forging process and the removal of the metal billet from the mold used for forging the metal billet, the integrated nozzle 5 is controlled to move to the mold position according to a preset path. 12) Adjust the blowing direction of the integrated nozzle 5 to the inner exposed surface of the mold, and control the adjusted nozzle to sequentially blow gas and spray lubricant onto the upper and lower exposed surfaces of the mold to complete the cleaning and lubrication of the inner exposed surface of the mold.

[0029] Furthermore, step 11) specifically includes: Obtain the surface temperature and pressure value of the mold platform; When the pressure value is less than the preset pressure threshold for confirming the separation of the upper and lower dies during the forging process, and the surface temperature is less than the preset temperature threshold for confirming the removal of the metal billet, the forging process of the metal billet is determined to be complete.

[0030] Furthermore, it also includes: after cleaning and lubrication are completed, the PLC control module 3 controls the movement of the multi-degree-of-freedom robotic arm body 6, so that the integrated nozzle 5 moves away from the forging table.

[0031] Method Example 1: like Figure 1 The diagram shows a flowchart of an automated cleaning and lubrication method based on metal forging according to one aspect of the present invention, which includes steps S11 and S12, specifically: Step S11: In response to the metal billet completing the forging process during die forging and the metal billet being removed from the mold used for forging the metal billet, the operating unit including the blow nozzle is controlled to move to the mold position according to a preset path; here, the preset path refers to a path planned in advance based on the initial position of the operating unit and the position of the mold surface; the mold surface position refers to the position of the mold cavity on the table surface of the forging table after the forging process is completed. Preferably, the path can be planned based on the initial position of the operating unit and the position of the forging table surface.

[0032] Simultaneously, the forging process of the metal billet is determined to be complete by: obtaining the surface temperature and pressure value of the mold table; when the pressure value is less than a preset pressure threshold for confirming the separation of the upper and lower molds during the forging process, and the surface temperature is less than a preset temperature threshold for confirming the removal of the metal billet, the forging process of the metal billet is determined to be complete; here, the temperature threshold is preferably 100°C; the surface temperature is obtained according to the temperature sensor of the mold table; the pressure value is obtained according to the pressure sensor of the mold table.

[0033] Step S12: Adjust the spray direction of the nozzle to the exposed inner surface of the mold, and control the adjusted nozzle to sequentially spray gas and lubricant onto the upper and lower exposed surfaces of the mold to complete the cleaning and lubrication of the exposed inner surfaces of the mold; it should be noted that the upper and lower exposed surfaces of the mold refer to the exposed surfaces of the upper and lower molds on the mold table (see...). Figure 3 (The upper surface of the lower mold 16 and the lower surface of the upper mold 18); In order to improve the debris removal effect, high-pressure gas is preferred. When spraying high-pressure gas and applying lubricant in sequence, a time interval is set between the high-pressure gas spraying operation and the lubricant spraying operation to ensure that the lubricant spraying operation is performed after the gas spraying operation is completed, so as to avoid the generation of defective forgings caused by performing the lubricant spraying operation before the cleaning is completed.

[0034] Through the above steps S11-S12, the exposed surfaces inside the mold are automatically cleaned and lubricated, while obtaining high-quality, high-integrity forgings.

[0035] Method Example 2: Following the above embodiments of the present invention, in engineering practice, for example, during the continuous production of die forgings, when the temperature sensor on the die table detects a surface temperature of less than 100°C and there is no pressure reduction on the die table (the pressure value is less than the preset pressure threshold, i.e., the upper and lower dies are separated), it is determined that the metal billet has completed the forging process. The control unit is then controlled to perform a three-stage operation, namely: coarse positioning, precision purging, and atomized spraying. After the three-stage operation is completed, the control unit is reset so that the control unit can cyclically perform the three-stage operation.

[0036] Method Example 3: Continuing with the above embodiments of the present invention, the operating unit includes a gas path for transmitting stored gas, so that when high-pressure gas is sprayed onto the upper and lower exposed surfaces of the mold through the controlled and adjusted spray nozzles, the high-pressure gas stored in the first storage unit is transmitted to the spray nozzles via the gas path. Additionally, the operating unit includes a liquid path for transmitting stored lubricant, so that when lubricant is sprayed onto the upper and lower exposed surfaces of the mold through the spray nozzles, the lubricant stored in the second storage unit is transmitted to the spray nozzles via the liquid path.

[0037] The first and second storage units ensure that the operating unit can cyclically perform the spraying of high-pressure gas and the spraying of lubricant, thereby improving the application value of the operating unit.

[0038] Equipment Example 1: like Figure 2 The diagram shows a schematic of an automatic cleaning and lubrication device based on metal forging according to another aspect of the present invention in a practical application scenario. The device includes a robotic arm base 1 fixedly connected to the forging machine frame; a rotating shaft 2 capable of free rotation and a control motor 4; an integrated nozzle assembly 5 at the end of the multi-degree-of-freedom robotic arm body 6; and a high-pressure air passage 8, a liquid delivery pipeline 9 for lubricant (i.e., a liquid passage), and a control motor 7 arranged in parallel inside the multi-degree-of-freedom robotic arm body 6.

[0039] PLC control module 3 and temperature sensor A and gravity sensor B of forging die table 15 (see...) Figure 3The signal is connected to the mold table 15, and the surface temperature and pressure value are obtained through the signal receiving device. When the pressure value is less than the preset pressure threshold for confirming the separation of the upper and lower molds during the forging process, and the surface temperature is less than the preset temperature threshold for confirming the removal of the metal billet, the forging process of the metal billet is determined to be completed. In addition, the PLC controller is used to respond to the completion of the forging process of the metal billet and the removal of the metal billet from the mold used for forging the metal billet. It controls the multi-degree-of-freedom robotic arm body 6, which includes an integrated nozzle 5, to move to the mold according to a preset path; adjusts the spraying direction of the integrated nozzle 5 to the internal exposed surface of the mold (i.e., the mold cavity position between the upper mold 18 and the lower mold 16), and controls the adjusted integrated nozzle 5 to sequentially spray high-pressure gas and spray lubricant on the upper and lower exposed surfaces of the mold to complete the cleaning and lubrication of the mold surface.

[0040] The multi-degree-of-freedom robotic arm body 6 includes an air passage 8 for transmitting and storing high-pressure gas. When the integrated nozzle 5, after control and adjustment, sprays high-pressure gas onto the upper and lower exposed surfaces of the mold, the high-pressure gas stored in the gas cylinder 13 (first storage unit) is transmitted to the integrated nozzle 5 through the air passage 8.

[0041] The multi-degree-of-freedom robotic arm body 6 includes a fluid passage 9 for transmitting and storing lubricant. When the integrated nozzle 5 sprays lubricant onto the upper and lower exposed surfaces of the mold, the lubricating oil stored in the storage tank 12 (second storage unit) is transmitted to the integrated nozzle 5 through the fluid passage 9.

[0042] In addition, the air circuit control module also includes a barometer 11; the lubrication module also includes a metering pump 10.

[0043] In summary, the main highlights of the automatic cleaning and lubrication method and equipment based on metal die forging proposed in this invention include: 1. Gas-liquid integration, significantly improving production efficiency. 2. The multi-degree-of-freedom robotic arm body can adapt to various complex working conditions. 3. High-pressure gas and atomized spraying ensure clean and uniform lubrication of the die surface.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic cleaning and lubrication device based on metal forging, characterized in that, include: The robotic arm consists of a base, rotating shaft, rotating motor, integrated nozzle, multi-degree-of-freedom robotic arm body, two robotic arm rotating motors, air circuit, hydraulic circuit, liquid storage tank, and gas cylinder. The output end of the rotary motor is connected to one end of the rotary shaft, and the other end of the rotary shaft is rotatably connected to the base of the robotic arm. A shelf is fixed on the outside of the rotary shaft, and the rotary motor is placed on the shelf. A support arm is provided on the main body of the multi-degree-of-freedom robotic arm. The two ends of the support arm are respectively connected to the side of the shelf and the shaft of the main body of the multi-degree-of-freedom robotic arm. The output ends of the two robotic arm rotary motors are used to control the rotation of the support arm and the rotation of the main body of the multi-degree-of-freedom robotic arm, respectively. The liquid storage tank is connected to an integrated nozzle fixed to the end of the multi-degree-of-freedom robotic arm via a liquid passage; the gas cylinder is connected to an integrated nozzle fixed to the end of the multi-degree-of-freedom robotic arm via a gas passage.

2. The automatic cleaning and lubrication equipment for metal forging according to claim 1, characterized in that, A metering pump is installed on the storage tank.

3. The automatic cleaning and lubrication equipment for metal forging according to claim 1, characterized in that, The gas cylinder is equipped with a barometer.

4. The automatic cleaning and lubrication equipment for metal forging according to claim 1, characterized in that, It also includes a PLC control module placed on the shelf, which is electrically connected to the control terminals of the rotary motor and the robotic arm rotary motor.

5. The automatic cleaning and lubrication equipment for metal forging according to claim 1, characterized in that, Also includes: Temperature and gravity sensors are installed on the lower die of the forging table, and the output terminals of the temperature and gravity sensors are connected to the PLC control module.

6. An automated cleaning and lubrication method based on metal forging, characterized in that, The method is performed using the device described in any one of claims 1-5, and the method includes: 11) In response to the completion of the forging process of the metal billet during the die forging process and the removal of the metal billet from the mold used for forging the metal billet, control the integrated nozzle to move to the mold position according to a preset path; 12) Adjust the spray direction of the integrated nozzle to the inner exposed surface of the mold, and control the adjusted spray nozzle to spray gas and lubricant sequentially on the upper and lower exposed surfaces of the mold to complete the cleaning and lubrication of the inner exposed surface of the mold.

7. The method according to claim 6, characterized in that, Step 11) specifically includes: Obtain the surface temperature and pressure value of the mold platform; When the pressure value is less than the preset pressure threshold for confirming the separation of the upper and lower dies during the forging process, and the surface temperature is less than the preset temperature threshold for confirming the removal of the metal billet, the forging process of the metal billet is determined to be complete.

8. The method according to claim 6, characterized in that, Also includes: After cleaning and lubrication are completed, the PLC control module controls the movement of the multi-degree-of-freedom robotic arm body, causing the integrated nozzle to move away from the forging table.

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