Precision punching device for PTC flanges of air conditioners

Abstract

This utility model relates to the technical field of flange punching devices, specifically, to a precision punching device for PTC flanges used in air conditioning systems. It includes a support panel mounted on an external support base and an upper beam plate positioned above the support panel. A lower punching template is fixedly installed at the center of the upper surface of the support panel. Two first cylinders for clamping the flange are fixedly installed on the upper surface of the support panel. A second cylinder is fixedly installed on the upper beam plate. A support base is detachably mounted at the end of the telescopic shaft of the second cylinder. A tool holder is detachably installed on the bottom surface of the support base, positioned directly above the lower punching template. A corresponding number of punching tools are fixedly installed on the bottom surface of the tool holder. This utility model allows for precise punching operations using a tool holder with a corresponding number and size of punching tools, reducing errors and ensuring accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of flange punching devices, specifically to a precision punching device for air conditioning PTC flanges. Background Technology

[0002] In the manufacturing of air conditioning equipment, PTC flanges are an indispensable key component. They are mainly used to fix and connect PTC heating elements, playing an important role in the stable operation of the air conditioning heating function. The accuracy of the holes on the PTC flange directly affects the installation accuracy and stability of the PTC heating elements, which in turn affects the overall performance and safety of the air conditioner. As the air conditioning industry continues to increase its requirements for product quality and production efficiency, higher standards have been set for the processing accuracy and production efficiency of PTC flanges. When punching holes in PTC flanges, corresponding punching devices are usually used.

[0003] Patent CN117244997B discloses a flange punching device, including a machine body, a rotary switching punch, an adjustable die, a rotary clamping device, a transmission mechanism, and a waste collection device. This invention belongs to the field of flange punching technology, specifically referring to a flange punching device. This invention avoids the problem of reduced punching efficiency caused by needing to change punches when punching holes of different diameters on flanges through a rotary switching punch. The adjustable die, used in conjunction with the rotary switching punch, enables punching of flanges with different diameter die holes. The rotary clamping device positions flanges of different diameters, restricting movement during punching. The installation of an annular serrated ring and a waste collection device inside the die hole prevents waste from affecting the punching quality of the flange.

[0004] While this technical solution has the advantage of avoiding the impact of waste material on flange punching quality, most current punching methods still employ a single-hole sequential processing method. For example, when multiple through holes need to be punched on a flange, only one through hole can be punched at a time. After punching that hole, the flange or punching head position needs to be adjusted before the next punching operation. This adjustment causes errors in punching accuracy, hindering the achievement of precise punching results. Therefore, we propose a precision punching device for air conditioning PTC flanges. Utility Model Content

[0005] The purpose of this invention is to provide a precision punching device for PTC flanges of air conditioners, so as to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A precision punching device for PTC flanges in air conditioning systems includes a support panel mounted on an external support base and an upper beam plate positioned above the support panel. A lower punching template is fixedly installed at the center of the upper surface of the support panel. Two first cylinders for clamping the flange are fixedly installed on the upper surface of the support panel. A second cylinder is fixedly installed on the upper beam plate. A support base is detachably installed at the end of the telescopic shaft of the second cylinder. A tool holder is detachably installed on the bottom surface of the support base. The tool holder is located directly above the lower punching template, and a corresponding number of punching tools are fixedly installed on the bottom surface of the tool holder.

[0008] Preferably, the upper beam plate is fixedly installed on the external frame, and a clamping seat is detachably installed at the end of the telescopic shaft of the first cylinder.

[0009] Preferably, a rectangular plate is fixedly installed at the end of the telescopic shaft of the first cylinder, and the clamping seat is detachably installed on the rectangular plate.

[0010] Preferably, the clamping seat slides along the upper surface of the support panel, and the thickness of the clamping seat is greater than the thickness of the lower punching template;

[0011] This setting ensures that the clamping seat can properly clamp the flange.

[0012] Preferably, a plurality of fixing protrusions are fixedly installed on the annular side of the lower punching template, and the fixing protrusions are detachably installed on the support panel by fastening bolts.

[0013] Preferably, a fixed plate is fixedly installed at the end of the telescopic shaft of the second cylinder, and the support base is detachably installed on the bottom surface of the fixed plate.

[0014] Preferably, two symmetrical side protrusions are fixedly installed on the annular side of the support base, and a vertically arranged guide post is fixedly installed on the top surface of the side protrusions. Two symmetrical guide sleeves are fixedly installed on the bottom surface of the upper beam plate, and the guide post is located inside the guide sleeve and is slidably connected to the guide sleeve.

[0015] This feature ensures greater stability of the support during vertical movement.

[0016] Preferably, the support base is provided with multiple elongated holes, and a rectangular groove is provided at the center of the bottom surface of the support base. A rectangular positioning block is fixedly installed at the center of the top surface of the tool holder disk. The rectangular positioning block and the rectangular groove are interlocked. A corresponding number of studs are fixedly installed on the top surface of the tool holder disk. The studs pass through the corresponding elongated holes. An elastic washer is fitted on the stud. A nut is threaded onto the stud. The nut presses the elastic washer against the top surface of the support base.

[0017] This setting facilitates the replacement of the tool holder disc, allowing for the selection of the appropriate number of punching tools for punching operations.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model uses two first cylinders on the left and right sides to clamp and fix the flange with a clamping seat, avoiding errors caused by flange position movement during punching. At the same time, the fixing protrusions on the lower punching template ensure that the template is installed firmly, providing a reliable basic positioning for precise punching. The corresponding number of punching tools on the bottom surface of the tool holder can process multiple holes simultaneously, reducing the accuracy deviation caused by adjusting the flange or punching tool position. This achieves high-precision punching operation for air conditioning PTC flanges, thereby improving product processing quality and pass rate.

[0020] 2. This utility model utilizes the fixed plate and support at the end of the telescopic shaft of the second cylinder, as well as the sliding connection structure between the side protrusions on the support, the guide post and the guide sleeve on the bottom surface of the upper beam plate. When the second cylinder drives the tool holder disc to move up and down, it effectively ensures the stability of the support and tool holder disc movement, avoiding the displacement of the punching position caused by shaking. This stable movement structure enables the punching tool to accurately cooperate with the lower punching template, ensuring the processing accuracy of each hole position, realizing the reliability of equipment operation and the stability of the processing process, and achieving the effect of extending the service life of the equipment and reducing the defect rate.

[0021] 3. This utility model utilizes a rectangular positioning block and rectangular slot interlocking mechanism between the tool holder disc and the support base, along with a detachable connection method using studs, elastic washers, and nuts. This allows for convenient and quick replacement of the tool holder disc, enabling the selection of appropriate quantities and specifications of punching tools according to different punching requirements. This flexible tool replacement design not only improves the equipment's adaptability to different processing tasks but also reduces the time cost of tool replacement, achieving efficient and convenient processing operations, thereby improving production efficiency and reducing production costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0024] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0025] Figure 4 This is the third partial structural schematic diagram of this utility model;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Support panel; 10. Top beam;

[0028] 2. First cylinder; 20. Rectangular plate; 21. Clamping seat;

[0029] 3. Lower punch template; 30. Fixing protrusion;

[0030] 4. Second cylinder; 40. Fixed plate; 41. Support base; 42. Elongated hole; 43. Rectangular groove; 44. Side protrusion; 45. Guide post; 46. Guide sleeve;

[0031] 5. Tool holder disc; 50. Punching tool; 51. Rectangular positioning block; 52. Stud; 53. Elastic washer; 54. Nut. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-4 This utility model provides a technical solution: a precision punching device for air conditioning PTC flanges, including a support panel 1 installed on an external support base and an upper beam plate 10 set above the support panel 1. A lower punching template 3 is fixedly installed at the center of the upper surface of the support panel 1. Multiple fixing protrusions 30 are fixedly installed on the annular side of the lower punching template 3. The fixing protrusions 30 are detachably installed on the support panel 1 by fastening bolts, so that the lower punching template 3 can be easily installed, disassembled and replaced. At the same time, the lower punching template 3 provides a stable base platform for the punching operation of PTC flanges.

[0034] like Figure 1 and Figure 2As shown, two first cylinders 2 for clamping the flange are fixedly installed on the upper surface of the support panel 1. The upper beam plate 10 is fixedly installed on the external frame. A clamping seat 21 is detachably installed at the end of the telescopic shaft of the first cylinder 2. A rectangular plate 20 is fixedly installed at the end of the telescopic shaft of the first cylinder 2. The clamping seat 21 is detachably installed on the rectangular plate 20 by multiple fastening bolts, which facilitates the fixing, installation, disassembly and replacement of the clamping seat 21. The clamping seat 21 slides along the upper surface of the support panel 1. The thickness of the clamping seat 21 is greater than the thickness of the lower punching template 3. With the cooperation of the clamping seat 21 sliding along the support panel 1, it can be flexibly adjusted and firmly clamped according to the PTC flange of different sizes, so that the flange remains fixed during the punching process, avoiding errors caused by movement, and achieving the effect of improving punching accuracy and product quality.

[0035] In this embodiment, a second cylinder 4 is fixedly installed on the upper beam plate 10. A support base 41 is detachably installed at the end of the telescopic shaft of the second cylinder 4. A tool holder 5 is detachably installed on the bottom surface of the support base 41. The tool holder 5 is located directly above the lower punching template 3. A corresponding number of punching tools 50 are fixedly installed on the bottom surface of the tool holder 5, so that the punching tools 50 on the bottom surface of the tool holder 5 can accurately cooperate with the lower punching template 3 to perform punching operations, making the punching process efficient and stable, and achieving the effect of improving processing efficiency and punching quality.

[0036] like Figure 3 As shown, a fixed plate 40 is fixedly installed at the end of the telescopic shaft of the second cylinder 4, and the support base 41 is detachably installed on the bottom surface of the fixed plate 40 by multiple fastening bolts, which facilitates the fixed installation and disassembly of the support base 41.

[0037] like Figure 3 As shown, two symmetrical side protrusions 44 are fixedly installed on the annular side of the support base 41. Vertically arranged guide posts 45 are fixedly installed on the top surface of the side protrusions 44. Two symmetrical guide sleeves 46 are fixedly installed on the bottom surface of the upper beam plate 10. The guide posts 45 are located inside the guide sleeves 46 and are slidably connected to them. When the second cylinder 4 drives the support base 41 to move, it effectively limits the swaying of the support base 41, making the support base 41 more stable during its up-and-down movement. This stable motion structure ensures the positional accuracy of the tool holder disc 5 and the punching tool 50, making the punching operation more precise, thereby reducing the defect rate and improving equipment reliability.

[0038] like Figure 3 and Figure 4As shown, the support base 41 is provided with multiple elongated holes 42, and a rectangular groove 43 is provided at the center of the bottom surface of the support base 41. A rectangular positioning block 51 is fixedly installed at the center of the top surface of the tool holder 5. The rectangular positioning block 51 and the rectangular groove 43 are interlocked. A corresponding number of studs 52 are fixedly installed on the top surface of the tool holder 5. The studs 52 pass through the corresponding elongated holes 42. An elastic washer 53 is fitted on the stud 52. A nut 54 is threaded onto the stud 52. The nut 54 presses the elastic washer 53 against the top surface of the support base 41, realizing the quick and convenient replacement of the tool holder 5. According to different punching requirements, the corresponding number and specifications of tool holders 5 and punching tools 50 can be selected and installed, so that the equipment can flexibly adapt to diverse processing tasks and achieve the effect of improving the versatility of the equipment and production efficiency.

[0039] Finally, it should be noted that the components involved in this utility model, such as the first cylinder 2 and the second cylinder 4, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0040] When using the precision punching device for air conditioning PTC flanges of this utility model, firstly, the fixing protrusion 30 of the lower punching template 3 is installed at the center position of the upper surface of the support panel 1 by fastening bolts to ensure that the lower punching template 3 is stable. According to the size of the PTC flange to be processed, the appropriate clamping seat 21 is installed on the rectangular plate 20 at the end of the telescopic shaft of the first cylinder 2 by fastening bolts. Then, according to the punching requirements, the corresponding number and specifications of the tool holder disc 5 are inserted into the rectangular groove 43 of the support seat 41 by rectangular positioning block 51, and fixed on the bottom surface of the support seat 41 by studs 52, elastic washers 53 and nuts 54.

[0041] Place the PTC flange on the lower punching template 3, start the first cylinder 2, its telescopic shaft drives the clamping seat 21 to move, firmly clamping the flange. Then start the second cylinder 4, the telescopic shaft pushes the support seat 41, the tool holder 5 and the punching tool 50 downward, so that the punching tool 50 cooperates with the lower punching template 3 and penetrates the PTC flange, completing the punching operation of the PTC flange.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precision punching device for an air conditioning PTC flange, comprising a support panel (1) mounted on an external support base and an upper beam plate (10) disposed above the support panel (1), characterized in that: A lower punch template (3) is fixedly installed at the center of the upper surface of the support panel (1). Two first cylinders (2) for clamping the flange are fixedly installed on the upper surface of the support panel (1). A second cylinder (4) is fixedly installed on the upper beam plate (10). A support base (41) is detachably installed at the end of the telescopic shaft of the second cylinder (4). A tool holder (5) is detachably installed on the bottom surface of the support base (41). The tool holder (5) is located directly above the lower punch template (3). A corresponding number of punching tools (50) are fixedly installed on the bottom surface of the tool holder (5).

2. The precision punching device for air conditioning PTC flanges according to claim 1, characterized in that: The upper beam plate (10) is fixedly installed on the external frame, and the end of the telescopic shaft of the first cylinder (2) is detachably fitted with a clamping seat (21).

3. The precision punching device for air conditioning PTC flanges according to claim 2, characterized in that: A rectangular plate (20) is fixedly installed at the end of the telescopic shaft of the first cylinder (2), and the clamping seat (21) is detachably installed on the rectangular plate (20).

4. The precision punching device for air conditioning PTC flanges according to claim 3, characterized in that: The clamping seat (21) slides along the upper surface of the support panel (1), and the thickness of the clamping seat (21) is greater than the thickness of the lower punching template (3).

5. The precision punching device for air conditioning PTC flanges according to claim 1, characterized in that: Multiple fixing protrusions (30) are fixedly installed on the annular side of the lower punch template (3). The fixing protrusions (30) are detachably installed on the support panel (1) by fastening bolts.

6. The precision punching device for air conditioning PTC flanges according to claim 1, characterized in that: The end of the telescopic shaft of the second cylinder (4) is fixedly mounted with a fixed plate (40), and the support base (41) is detachably mounted on the bottom surface of the fixed plate (40).

7. The precision punching device for air conditioning PTC flanges according to claim 1, characterized in that: Two symmetrical side protrusions (44) are fixedly installed on the annular side of the support base (41). A vertically arranged guide post (45) is fixedly installed on the top surface of the side protrusion (44). Two symmetrical guide sleeves (46) are fixedly installed on the bottom surface of the upper beam plate (10). The guide post (45) is located inside the guide sleeve (46) and is slidably connected to the guide sleeve (46).

8. The precision punching device for air conditioning PTC flanges according to claim 1, characterized in that: The support base (41) is provided with a plurality of elongated holes (42), and a rectangular groove (43) is provided at the center of the bottom surface of the support base (41). A rectangular positioning block (51) is fixedly installed at the center of the top surface of the tool holder (5). The rectangular positioning block (51) and the rectangular groove (43) are interlocked. A corresponding number of studs (52) are fixedly installed on the top surface of the tool holder (5). The studs (52) pass through the corresponding elongated holes (42). An elastic washer (53) is sleeved on the stud (52). A nut (54) is threaded onto the stud (52). The nut (54) presses the elastic washer (53) against the top surface of the support base (41).

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