Numerical control hydraulic punching device for air conditioning unit water baffle

Abstract

The application discloses a numerical control hydraulic punching device for an air conditioner unit water baffle, and relates to the technical field of air conditioner water baffle processing equipment, which comprises a workbench, a negative pressure positioning dust absorption mechanism and a movable hydraulic punching mechanism. The inside of the workbench is a hollow structure, and the top of the workbench is an open structure. The movable hydraulic punching mechanism comprises a linear guide rail fixedly connected with the workbench through a support frame, a sliding seat slidingly connected on the linear guide rail, a mounting seat fixedly connected with the side wall of the sliding seat, a hydraulic cylinder fixedly installed on the top outer wall of the mounting seat, a linear module and a punching head fixedly connected with the telescopic end of the hydraulic cylinder. The application is characterized by the following: the water baffle in the positioning groove is uniformly adsorbed and fixed by the negative pressure generated by the negative pressure fan, so that the mechanical clamp is not needed, the surface indentation or scratch of the workpiece is avoided, and multiple water baffles can be simultaneously adsorbed by multiple positioning grooves, so that the clamping efficiency is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioner baffle processing equipment, and in particular to a CNC hydraulic punching device for air conditioner unit baffles. Background Technology

[0002] The baffle plate of an air conditioning unit is an important component used to prevent condensate from being carried away by airflow. It is usually made of thin metal sheets (such as galvanized sheet or stainless steel sheet) through processes such as punching and bending. Traditional punching methods are mostly manual single-station operations, where the baffle plate is fixed with a fixture and punched one hole at a time, which has the following technical drawbacks: Firstly, the clamping and positioning efficiency is low: before each punching, a pressure plate or fixture is needed to press the baffle plate firmly onto the worktable, which is cumbersome. Moreover, multiple baffle plates cannot be positioned at the same time, and repeated clamping is required during batch processing, which seriously affects production efficiency.

[0003] Secondly, cleaning up punching debris is difficult: metal debris generated during the punching process is scattered on and around the workbench surface, requiring frequent manual cleaning, which not only increases labor intensity but may also scratch the workpiece surface or cause injury to the operator.

[0004] Third, the fixture can easily damage the surface of the workpiece: during the clamping process, the mechanical fixture may cause indentations or scratches on the surface of the baffle plate, affecting the appearance quality of the product. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a CNC hydraulic punching device for water baffles in air conditioning units.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A CNC hydraulic punching device for a water baffle plate of an air conditioning unit includes a worktable, a negative pressure positioning and chip suction mechanism, and a movable hydraulic punching mechanism. The worktable has a hollow interior and an open top. The mobile hydraulic punching mechanism includes a linear guide rail fixedly connected to the workbench via a support frame, a sliding seat slidably connected to the linear guide rail, a mounting seat fixedly connected to the side wall of the sliding seat, a hydraulic cylinder fixedly installed on the top outer wall of the mounting seat, a linear module, and a punching head fixedly connected to the telescopic end of the hydraulic cylinder. The negative pressure positioning and dust collection mechanism includes a positioning plate embedded in the top opening of the workbench, multiple equally spaced negative pressure positioning structures on the top of the positioning plate, a negative pressure fan fixedly installed on the bottom outer wall of the workbench, and a waste collection assembly located inside the workbench.

[0007] Preferably, the linear module includes a mounting groove formed on the top of the linear guide rail, a transverse lead screw rotatably mounted in the mounting groove, a lead screw pair threaded onto the transverse lead screw, and a servo motor fixedly connected to one outer wall of the linear guide rail via a motor support.

[0008] Preferably, the output shaft of the servo motor is coaxially and fixedly connected to one end of the transverse lead screw via a coupling, and the lead screw pair is fixedly connected to the sliding seat.

[0009] Preferably, connecting brackets are welded at the four corners of the opening of the workbench, and the four corners of the positioning plate are sequentially connected to the four connecting brackets by bolts.

[0010] Preferably, the negative pressure positioning structure includes a positioning groove on the top of the positioning plate and a plurality of negative pressure adsorption holes on the bottom inner wall of the positioning groove and distributed at equal intervals.

[0011] Preferably, the waste collection assembly includes a waste collection drawer installed in the workbench and an intercepting filter screen fixedly installed in the waste collection drawer, and the top and bottom of the waste collection drawer are both open structures.

[0012] Preferably, an adsorption magnet is fixedly embedded on one side of the workbench, and an iron block that attracts the adsorption magnet is fixedly embedded on the inner side of the chip collection drawer.

[0013] Preferably, the bottom of the workbench is provided with an exhaust hole that matches the position of the negative pressure fan, and support legs are welded to the outer walls of the four corners of the bottom of the workbench, and shock-absorbing pads are glued to the bottom outer walls of the four support legs.

[0014] The beneficial effects of this invention are as follows: 1. The present invention uses negative pressure adsorption positioning for fast and non-destructive clamping: the negative pressure generated by the negative pressure fan causes the baffle plate in the positioning groove to be uniformly adsorbed and fixed, eliminating the need for mechanical clamps and avoiding indentations or scratches on the workpiece surface. Furthermore, multiple positioning grooves can simultaneously adsorb multiple baffle plates, significantly improving clamping efficiency.

[0015] 2. This invention achieves simultaneous collection of punching chips, making it clean and environmentally friendly: while fixing the workpiece, the negative pressure adsorption airflow draws the metal chips generated during punching into the chip collection drawer inside the workbench through the negative pressure adsorption hole. After being filtered by the interception filter, the chips are collected in a concentrated manner, realizing the simultaneous completion of punching and chip removal. No manual cleaning is required, and the working environment is clean.

[0016] 3. This invention features CNC linear motion for continuous batch punching: The servo motor-driven linear module moves the punching head precisely along the linear guide rail, allowing for sequential programming punching of multiple baffles on the positioning plate. Batch processing is completed in a single clamping, significantly improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the positioning plate and the worktable of the present invention in a separated state. Figure 3 This is a three-dimensional enlarged structural schematic diagram of the mobile hydraulic punching mechanism of the present invention; Figure 4 This is a three-dimensional enlarged structural schematic diagram of the positioning plate of the present invention; Figure 5 This is a three-dimensional enlarged structural diagram of the bottom area of ​​the workbench of the present invention.

[0018] In the diagram: 1. Workbench; 2. Support frame; 3. Linear guide rail; 4. Sliding seat; 5. Mounting seat; 6. Hydraulic cylinder; 7. Punching head; 8. Mounting groove; 9. Horizontal lead screw; 10. Lead screw pair; 11. Motor support; 12. Servo motor; 13. Positioning plate; 14. Positioning groove; 15. Negative pressure adsorption hole; 16. Chip collection drawer; 17. Interception filter; 18. Negative pressure fan; 19. Connecting angle bracket; 20. Adsorption magnet. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Example 1, referring to Figure 1 and Figure 3 A CNC hydraulic punching device for a water baffle plate of an air conditioning unit includes a worktable 1, a negative pressure positioning and chip suction mechanism and a movable hydraulic punching mechanism. The interior of the worktable 1 is hollow and the top of the worktable 1 is open.

[0021] Specifically, the mobile hydraulic punching mechanism includes a linear guide rail 3 fixedly connected to the worktable 1 via a support frame 2, a sliding seat 4 slidably connected to the linear guide rail 3, a mounting seat 5 fixedly connected to the side wall of the sliding seat 4, a hydraulic cylinder 6 fixedly installed on the top outer wall of the mounting seat 5, a linear module, and a punching head 7 fixedly connected to the telescopic end of the hydraulic cylinder 6.

[0022] In this embodiment, the linear module includes a mounting groove 8 on the top of the linear guide rail 3, a transverse lead screw 9 rotatably mounted in the mounting groove 8, a lead screw pair 10 threadedly connected to the transverse lead screw 9, and a servo motor 12 fixedly connected to one outer wall of the linear guide rail 3 via a motor support 11. Furthermore, the servo motor 12 drives the transverse lead screw 9 to rotate, and through the lead screw pair 10 drives the sliding seat 4 and the punching head 7 to make precise linear movements along the linear guide rail 3, which can sequentially align with the punching positions of multiple baffles on the positioning plate 13, realize continuous programmable punching, and improve processing efficiency and hole position accuracy.

[0023] In this embodiment, the output shaft of the servo motor 12 is coaxially and fixedly connected to one end of the transverse lead screw 9 via a coupling, and the lead screw pair 10 is fixedly connected to the sliding seat 4. Furthermore, the coupling ensures the concentricity and reliability of power transmission, and the fixed connection between the lead screw pair 10 and the sliding seat 4 converts rotational motion into linear motion, resulting in smooth transmission and high positioning accuracy.

[0024] In this embodiment, connecting brackets 19 are welded at the four corners of the opening of the workbench 1, and the four corners of the positioning plate 13 are connected to the four connecting brackets 19 in sequence by bolts; furthermore, the positioning plate 13 is detachably fixed by the connecting brackets 19 and bolts, which makes it easy to replace the positioning plate 13 with different positioning groove 14 layouts according to different specifications of water baffles, improves versatility, and makes it easy to periodically remove the positioning plate 13 to clean internal debris.

[0025] Example 2, refer to Figure 1-2 and Figure 4-5 This embodiment is an optimization based on embodiment 1. Specifically, the negative pressure positioning and dust collection mechanism includes a positioning plate 13 embedded in the top opening of the workbench 1, multiple equally spaced negative pressure positioning structures on the top of the positioning plate 13, a negative pressure fan 18 fixedly installed on the bottom outer wall of the workbench 1, and a waste collection component installed inside the workbench 1.

[0026] In this embodiment, the negative pressure positioning structure includes a positioning groove 14 opened on the top of the positioning plate 13 and a plurality of negative pressure adsorption holes 15 opened on the bottom inner wall of the positioning groove 14 and distributed at equal intervals; further, the positioning groove 14 is used for quick placement and positioning of the baffle plate, and the plurality of negative pressure adsorption holes 15 generate uniform adsorption force when the negative pressure fan 18 is working, firmly adsorbing the baffle plate to the bottom of the groove without the need for mechanical clamps, avoiding damage to the surface of the workpiece, and at the same time, the adsorption airflow can suck in the debris generated by punching in a timely manner.

[0027] In this embodiment, the waste collection assembly includes a waste collection drawer 16 installed in the workbench 1 and an intercepting filter 17 fixedly installed in the waste collection drawer 16. The top and bottom of the waste collection drawer 16 are both open structures. Further, the top opening receives the debris and airflow sucked in from the negative pressure adsorption hole 15 of the positioning plate 13. When the airflow passes through the intercepting filter 17, the debris is filtered down and left in the waste collection drawer 16. The clean air is discharged from the bottom opening and discharged to the outside through the negative pressure fan 18.

[0028] In this embodiment, an adsorption magnet 20 is fixedly embedded on one side of the workbench 1, and an iron block that attracts the adsorption magnet 20 is fixedly embedded on the inner side of the chip collection drawer 16. Furthermore, the adsorption magnet 20 and the iron block attract each other to fix the chip collection drawer 16 inside the workbench 1, preventing it from accidentally sliding out due to vibration. When cleaning is required, the chip collection drawer 16 can be pulled out by force to overcome the magnetic force. In this way, the chip collection drawer 16 is positioned by magnetic attraction, and no tools are needed when it is pulled out. After cleaning the debris, it is automatically attracted when pushed back in, saving time and effort in maintenance.

[0029] In this embodiment, the bottom of the workbench 1 is provided with an exhaust hole that matches the position of the negative pressure fan 18. Support legs are welded to the outer walls of the four corners of the bottom of the workbench 1, and shock-absorbing pads are glued to the bottom outer walls of the four support legs. Furthermore, the exhaust hole ensures that the airflow drawn out by the negative pressure fan 18 is discharged smoothly, the support legs raise the workbench 1 to a suitable operating height, and the shock-absorbing pads absorb the impact vibration during punching, reduce noise and protect the ground.

[0030] The workflow of this invention is as follows: First, the water baffles of the air conditioning unit to be processed are sequentially placed into the respective positioning slots 14 on the top of the positioning plate 13. The negative pressure fan 18 is started, and a negative pressure is formed in the internal cavity of the workbench 1. The multiple negative pressure adsorption holes 15 at the bottom of the positioning slots 14 generate a downward suction force, firmly adsorbing the water baffles to the bottom of the positioning slots 14.

[0031] Secondly, during the punching process, the hydraulic cylinder 6 drives the punching head 7 to punch downwards and cut the baffle plate. The resulting metal debris is sucked into the negative pressure adsorption hole 15 by the negative pressure airflow when the punching head 7 retracts, and falls into the chip collection drawer 16 through the internal cavity of the worktable 1. The intercepting filter 17 in the chip collection drawer 16 traps the debris, and the filtered air is discharged from the bottom opening of the chip collection drawer 16 and the exhaust hole at the bottom of the worktable 1 through the negative pressure fan 18.

[0032] Finally, the punching position coordinates (the positions on each baffle plate that need to be punched) are pre-input into the CNC system. The servo motor 12 is started, driving the transverse lead screw 9 to rotate. The lead screw pair 10 drives the sliding seat 4 to move linearly along the linear guide rail 3. The sliding seat 4 moves the mounting base 5, hydraulic cylinder 6, and punching head 7 to directly above the first punching position. The hydraulic cylinder 6 extends, driving the punching head 7 downwards to complete the punching of the baffle plate at that position. Then, the hydraulic cylinder 6 retracts, and the punching head 7 rises. The servo motor 12 continues to drive the punching head 7 to the next punching position, sequentially completing the punching of all baffle plates in the positioning slots 14. Because multiple baffle plates are simultaneously fixed by negative pressure adsorption, the punching head 7 can move continuously to punch, eliminating the need for intermediate material changes and achieving batch integrated processing.

[0033] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC hydraulic punching device for a baffle plate of an air conditioning unit, comprising a worktable (1), wherein the interior of the worktable (1) is a hollow structure and the top of the worktable (1) is an open structure, characterized in that, It also includes a negative pressure positioning and chip suction mechanism and a mobile hydraulic punching mechanism; The mobile hydraulic punching mechanism includes a linear guide rail (3) fixedly connected to the worktable (1) via a support frame (2), a sliding seat (4) slidably connected to the linear guide rail (3), a mounting seat (5) fixedly connected to the side wall of the sliding seat (4), a hydraulic cylinder (6) fixedly installed on the top outer wall of the mounting seat (5), a linear module, and a punching head (7) fixedly connected to the telescopic end of the hydraulic cylinder (6). The negative pressure positioning and dust collection mechanism includes a positioning plate (13) embedded in the top opening of the workbench (1), multiple equally spaced negative pressure positioning structures on the top of the positioning plate (13), a negative pressure fan (18) fixedly installed on the bottom outer wall of the workbench (1), and a waste collection component installed in the workbench (1).

2. The CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, The linear module includes a mounting groove (8) on the top of the linear guide (3), a transverse lead screw (9) rotatably mounted in the mounting groove (8), a lead screw pair (10) threaded onto the transverse lead screw (9), and a servo motor (12) fixedly connected to one side of the outer wall of the linear guide (3) via a motor support (11).

3. The CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, The output shaft of the servo motor (12) is coaxially and fixedly connected to one end of the transverse lead screw (9) through a coupling, and the lead screw pair (10) is fixedly connected to the sliding seat (4).

4. A CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, The workbench (1) has connecting brackets (19) welded at the four corners of the opening, and the positioning plate (13) is connected to the four connecting brackets (19) in sequence by bolts at the four corners.

5. A CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, The negative pressure positioning structure includes a positioning groove (14) on the top of the positioning plate (13) and a plurality of negative pressure adsorption holes (15) on the bottom inner wall of the positioning groove (14) and distributed at equal intervals.

6. A CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, The waste collection assembly includes a waste collection drawer (16) installed in the workbench (1) and an interception filter (17) fixedly installed in the waste collection drawer (16), and the top and bottom of the waste collection drawer (16) are both open structures.

7. A CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, A magnet (20) is fixedly embedded on one side of the workbench (1), and an iron block that attracts the magnet (20) is fixedly embedded on the inner side of the chip collection drawer (16).

8. A CNC hydraulic punching device for a water baffle plate of an air conditioning unit according to claim 1, characterized in that, The bottom of the workbench (1) is provided with an exhaust hole that matches the position of the negative pressure fan (18). Support legs are welded to the four corners of the bottom of the workbench (1), and shock-absorbing pads are glued to the bottom outer walls of the four support legs.

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