An automatic cooling and lubrication device for drawing rings used in the shell drawing process.

Abstract

This utility model relates to the field of mold equipment technology, specifically to an automatic cooling and lubrication device for a stretching ring used in the shell stretching process. It includes a hydraulic press slide, a central column, and a stretching ring. The central column is located in the middle of the hydraulic press slide, and the stretching ring is mounted on the central column. The central column moves the stretching ring along the hydraulic press slide for stretching. The hydraulic press slide has water passage holes and air passage holes, which are connected to water channels and air channels respectively. A mounting base is provided inside the hydraulic press slide, and a nozzle is mounted on the mounting base. The nozzle is connected to the water channel and air channel through pipes. By using the nozzle located on the side of the hydraulic press slide, the stretching ring is sprayed as the hydraulic press stretches, reducing manual spraying and greatly improving processing efficiency and spraying effect.

Description

Technical Field

[0001] This utility model relates to the field of mold equipment technology, and in particular to an automatic cooling and lubrication device for a stretching ring used in the shell drawing process. Background Technology

[0002] In the manufacturing process of deep-hole shells, the drawing process after punching is a crucial step that determines the forming accuracy and quality of the shell. This process relies on a hydraulic press to drive relevant components and stretch the shell through a stretching ring. As a core component that directly contacts the shell, the lubrication and cooling effect of the stretching ring directly affects the processing accuracy and the service life of the equipment.

[0003] Currently, the industry generally uses manual operation for the lubrication and cooling of stretch rings, specifically by manually applying lubricant at regular intervals or manually spraying graphite between processes. Manual spraying relies on operator experience, making it difficult to accurately cover the contact area between the stretch ring and the housing. This can easily lead to insufficient lubrication in certain areas, causing excessive wear on the stretch ring, or inadequate cooling in certain areas, affecting the machining accuracy of the housing. Furthermore, manual control of lubricant dosage has large errors; excessive dosage leads to waste and contaminates the processing environment, while insufficient dosage fails to provide effective lubrication and protection, affecting processing efficiency and equipment lifespan. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an automatic cooling and lubrication device for the stretching ring in the shell stretching process, so as to solve the problems of low efficiency and difficulty in controlling the spraying amount by manual spraying, which affects the lubrication effect.

[0005] Based on the above objectives, this utility model provides an automatic cooling and lubrication device for a stretching ring in a shell drawing process, comprising a hydraulic press slide, a central column, and a stretching ring. The central column is located in the middle of the hydraulic press slide, and the stretching ring is mounted on the central column. The central column moves the stretching ring along the hydraulic press slide to perform the drawing process. The hydraulic press slide has water passage holes and air passage holes, which are respectively connected to water channels and air channels. A mounting base is provided on the inner side of the hydraulic press slide, and a nozzle is mounted on the mounting base. The nozzle is connected to the water channels and air channels through pipes.

[0006] A further improvement is that the inner side of the hydraulic press slide is provided with an installation groove, and the mounting seat is rotatably installed in the installation groove via a rotating shaft.

[0007] A further improvement is that a drive mechanism is provided on one side of the hydraulic press slide table. The drive mechanism causes the nozzle to extend and spray. The drive mechanism includes a rack. A slide groove is opened on the side of the hydraulic press slide table. The rack is slidably set in the slide groove. A gear is fixedly installed on the rotating shaft. One side of the gear passes through the mounting groove and extends into the slide groove to mesh with the rack. A connecting rod is provided on one side of the rack. The connecting rod is connected to the central column.

[0008] A further improvement is that multiple sets of mounting bases and nozzles are provided, and the mounting bases and nozzles are arranged around the central column.

[0009] A further improvement is that the nozzle is a gas-liquid mixing nozzle.

[0010] A further improvement is that a displacement sensor is installed on the central column, and an on / off valve is installed on the nozzle. The displacement sensor and the on / off valve are electrically connected to an external PLC controller.

[0011] The beneficial effects of this utility model are as follows: By setting nozzles on the side of the hydraulic press slide, a mixture of lubricant and compressed gas is sprayed onto the stretching ring, thus lubricating and cooling the ring. The nozzles are arranged around the central column, ensuring more comprehensive and uniform spray coverage of the outer circumference of the stretching ring, avoiding localized wear or insufficient cooling, and controlling the shell processing accuracy error within ±0.2mm. The nozzles are sprayed in conjunction with the stretching action of the hydraulic press via PLC control, eliminating the need for manual shutdown and saving downtime for manual lubrication. This allows the stretching process to be carried out continuously, improving overall processing efficiency by more than 20%. Furthermore, the PLC controller precisely controls the spraying time and lubricant usage, reducing lubricant waste by 30% compared to manual operation, while also lowering labor costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a top view of an embodiment of the present invention. Figure 3 This is a side view of the hydraulic press slide structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the drive mechanism structure of an embodiment of the present utility model.

[0014] The diagram is marked as follows: 1. Hydraulic press slide; 2. Center column; 3. Tensioning ring; 4. Water passage hole; 5. Air passage hole; 6. Mounting base; 7. Nozzle; 8. Mounting groove; 9. Rotating shaft; 10. Rack; 11. Slide groove; 12. Gear; 13. Connecting rod. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0016] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] like Figure 1-3 As shown, this embodiment provides an automatic cooling and lubrication device for a stretching ring in a shell stretching process, including a hydraulic press slide 1, a central column 2, and a stretching ring 3. The central column 2 is located in the middle of the hydraulic press slide 1, and the stretching ring 3 is located on the central column 2. Multiple sets of stretching rings 3 are provided and are equidistantly arranged on the central column 2. The central column 2 is driven by a hydraulic press to move the stretching ring 3 along the hydraulic press slide 1 for stretching.

[0018] The hydraulic press slide 1 has a water passage hole 4 and an air passage hole 5, which are connected to water channels and air channels respectively. The inner side of the hydraulic press slide 1 is provided with a mounting base 6, which is provided for each stretching ring 3. A nozzle 7 is installed on the mounting base 6. The nozzle 7 is a gas-liquid mixing nozzle. The nozzle 7 is connected to the water channel and the air channel through the pipe. Lubricant and compressed gas are delivered into the nozzle 7 through the water channel and the air channel. The lubricant and compressed gas are mixed in the nozzle 7 to form a mist, which is sprayed onto the surface of the stretching ring 3 through the nozzle 7. A displacement sensor is installed on the central column 2, and an on / off valve is installed on the nozzle 7. The displacement sensor and the on / off valve are electrically connected to an external PLC controller. The displacement sensor monitors the movement of the central column 2. After the hydraulic press drives the central column 2 to complete one stretching action and reset, the external PLC controller receives the displacement sensor signal and controls the on / off valve to open, so that the nozzle 7 sprays lubricant onto the surface of the stretching ring 3. After the preset spraying time of 5-10 seconds is reached, the external PLC controller controls the on / off valve to close, completing one automatic lubrication and cooling cycle, and waiting for the next stretching action signal.

[0019] like Figure 4As shown, the hydraulic press slide 1 has an installation groove 8 on its inner side. The mounting seat 6 is rotatably installed in the installation groove 8 via a rotating shaft 9. A drive mechanism is provided on one side of the hydraulic press slide 1. The drive mechanism causes the nozzle 7 to extend and spray. The drive mechanism includes a rack 10. A slide groove 11 is provided on the side of the hydraulic press slide 1. The rack 10 is slidably installed in the slide groove 11. A connecting rod 13 is provided on one side of the rack 10. The connecting rod 13 is connected to the central column 2. The rack 10 is connected to the central column 2 via the connecting rod 13. As the central column 2 moves, the rack 10 slides in the slide groove 11 via the connecting rod 13. A gear 12 is fixedly installed on the rotating shaft 9. One side of the gear 12 passes through the installation groove 8 and extends into the slide groove 11 to mesh with the rack 10. The rack 10 drives the gear 12 to rotate the rotating shaft 9. The rotating shaft 9 drives the mounting seat 6 to rotate and retract the nozzle 7 into the installation groove 8, so as to avoid the nozzle 7 from obstructing the stretching of the tension ring 3. Multiple sets of mounting bases 6 and nozzles 7 are provided. Mounting bases 6 and nozzles 7 are arranged around the central column 2. The nozzles 7 surround the outside of the tension ring 3 to spray lubricant, thereby improving the uniformity of spraying.

[0020] During production, the hydraulic press drives the central column 2 to stretch the tension ring 3. When the hydraulic press drives the central column 2 to complete one stretching action and reset, the central column 2 drives the rack 10 to slide in the slide groove 11 through the connecting rod 13. As the rack 10 slides, it drives the gear 12 to rotate, causing the mounting seat 6 to drive the nozzle 7 to rotate out of the mounting groove 8 and face the tension ring 3 through the rotating shaft 9. At the same time, the displacement sensor monitors the movement of the central column 2 and sends the monitoring signal to the external PLC controller. The external PLC controller controls the on-off valve to open, and the water and air channels deliver lubricant and compressed gas into the nozzle 7. The compressed gas and lubricant mix in the nozzle 7 to form a mist, which is sprayed onto the surface of the tension ring 3. After the preset spraying time of 5-10 seconds is reached, the external PLC controller closes the on-off valve, completing one automatic lubrication and cooling cycle, and waiting for the next stretching action signal.

[0021] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic cooling and lubrication device for a drawing ring in a shell drawing process, comprising a hydraulic press slide (1), a central column (2), and a drawing ring (3), wherein the central column (2) is disposed in the middle of the hydraulic press slide (1), and the drawing ring (3) is disposed on the central column (2), and the central column (2) moves the drawing ring (3) along the hydraulic press slide (1) to perform drawing, characterized in that, The hydraulic press slide (1) is provided with a water passage hole (4) and an air passage hole (5), and a water passage channel and an air passage channel are respectively connected through the water passage hole (4) and the air passage hole (5); a mounting base (6) is provided on the inner side of the hydraulic press slide (1), and a nozzle (7) is installed on the mounting base (6). The nozzle (7) is connected to the water passage channel and the air passage channel through a pipe.

2. The automatic cooling and lubrication device for a drawing ring in a shell drawing process according to claim 1, characterized in that, The hydraulic press slide (1) has an installation groove (8) on its inner side, and the mounting seat (6) is rotatably installed in the installation groove (8) via a rotating shaft (9).

3. The automatic cooling and lubrication device for a drawing ring in a shell drawing process according to claim 2, characterized in that, A drive mechanism is provided on one side of the hydraulic press slide (1). The nozzle (7) is extended to spray through the drive mechanism. The drive mechanism includes a rack (10). A slide groove (11) is provided on the side of the hydraulic press slide (1). The rack (10) is slidably disposed in the slide groove (11). A gear (12) is fixedly installed on the rotating shaft (9). One side of the gear (12) passes through the mounting groove (8) and extends into the slide groove (11) to mesh with the rack (10). A connecting rod (13) is provided on one side of the rack (10). The connecting rod (13) is connected to the central column (2).

4. The automatic cooling and lubrication device for a drawing ring in a shell drawing process according to claim 1, characterized in that, Multiple sets of mounting bases (6) and nozzles (7) are provided, and the mounting bases (6) and nozzles (7) are arranged around the central column (2).

5. An automatic cooling and lubrication device for a drawing ring in a shell drawing process according to claim 1, characterized in that, The nozzle (7) is a gas-liquid mixing nozzle (7).

6. The automatic cooling and lubrication device for a drawing ring in a shell drawing process according to claim 1, characterized in that, A displacement sensor is installed on the central column (2), and an on / off valve is installed on the nozzle (7). The displacement sensor and the on / off valve are electrically connected to an external PLC controller.

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