Automatic dotting device for air conditioner copper pipe fitting machining

By designing an automatic marking device, efficient and accurate marking of copper pipe fittings was achieved, solving the problems of high labor intensity and insufficient flexibility of traditional manual marking and improving production efficiency and automation level.

CN223491840UActive Publication Date: 2025-10-31FOSHAN SHUNDE JIEHAO IND CO LTD
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Patent Information

Application Number
CN202520109534.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-10-31
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Traditional copper pipe fitting marking work is labor-intensive and inefficient, and manual marking positions are inaccurate or inconsistent. Existing automatic marking devices lack flexibility and cannot meet the needs of complex multi-point processing.

Method used

An automatic marking device was designed, comprising a base plate, mounting cylinder, guide cylinder, processing ring, limiting block, top ball, and electric push rod. Through the transparent guide cylinder and scale in conjunction with the push rod, the device achieves precise positioning and automatic feeding of copper tubes, and can complete internal and external marking operations in one go, improving marking efficiency and accuracy.

Benefits of technology

It improves the efficiency and accuracy of marking on copper pipe fittings, reduces manual intervention, enhances the automation level of the production line, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of copper pipe processing equipment, in particular to an automatic dotting device for processing an air conditioner copper pipe fitting, which comprises a bottom plate which is an assembly carrier of the dotting device. The mounting cylinder is fixedly mounted on the bottom plate, and the mounting cylinder is a hollow cylinder body; the guide cylinder is fixedly connected and communicated with the side wall of the mounting cylinder; the machining ring is fixedly connected to the side, away from the mounting cylinder, of the guide cylinder in a communicating mode, the machining ring is a double-layer ring body, and a plurality of punching grooves are formed in the double-layer ring body of the machining ring in the circumferential direction; the number of the first limiting blocks is consistent with that of the outer ring punching grooves of the machining ring, and the first limiting blocks are evenly and fixedly arranged at the outer layer punching grooves of the machining ring in the circumferential direction. By means of the first top ball and the second top ball, inward or outward dotting operation on the copper pipe can be completed at a time, the efficiency of single-time dotting operation is improved, and the dotting requirements of different types can be met.
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Description

Technical Field

[0001] This utility model relates to the field of copper tube processing equipment, and more specifically to an automatic marking device for processing air conditioning copper pipe fittings. Background Technology

[0002] Traditionally, the marking of copper pipe fittings is done manually, with workers using hand tools such as punches, hammers, or simple mechanical marking machines. This method is not only labor-intensive and inefficient, but also susceptible to human error, leading to inaccurate or inconsistent marking positions. With the development of the air conditioning manufacturing industry and technological advancements, the quality requirements for copper pipe fitting processing are becoming increasingly stringent, making manual marking methods insufficient for meeting the demands of efficient production and high quality.

[0003] Patent CN219853155U discloses an automatic marking device for processing copper pipe fittings for air conditioners. The device includes a base and a copper pipe. A limiting frame, a transport frame, and a top frame are fixedly connected to the base. A cleaning cover is bolted to the transport frame, and a cleaning sponge is glued to the bottom of the cleaning cover. The cleaning sponge contacts the copper pipe. This automatic marking device inserts the copper pipe into the device through a side limiting groove, and a second electric push rod extends to fix the copper pipe for processing. However, because the marking method is relatively fixed and can only be performed at one position at a time, when marking multiple parts of the copper pipe is required, especially for complex multi-point processing needs, the device may not be able to quickly adjust to the required different marking positions, lacking flexibility. Adjustment requires moving and positioning the copper pipe position by position, which prolongs the overall processing time and results in low processing efficiency. Therefore, we propose an automatic marking device for processing copper pipe fittings for air conditioners to overcome the above-mentioned defects. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an automatic marking device for processing copper pipe fittings for air conditioners.

[0005] The technical implementation scheme of this utility model is as follows: an automatic marking device for processing copper pipe fittings for air conditioners, comprising a base plate, which serves as the assembly carrier for the marking device; further comprising: a mounting cylinder, fixedly mounted on the base plate, the mounting cylinder being an airborne cylinder; a guide cylinder, fixedly connected to the side wall of the mounting cylinder; a processing ring, fixedly connected to the side of the guide cylinder away from the mounting cylinder, the processing ring being a double-layered ring, each of the double-layered ring having multiple circumferentially perforated slots; a limiting block, the number of which is the same as the number of perforated slots on the outer ring of the processing ring, and uniformly fixed circumferentially at the perforated slots on the outer layer of the processing ring; and a top ball, slidably disposed within each of the limiting blocks, the limiting block being an arc-shaped clamping plate that is movable. The device comprises: a clamping top ball 1; an external dotting component, mounted on the base plate, which pushes the top ball 1 inward to dot the copper tube inserted into the processing ring; two limiting blocks, the number of which is the same as the number of perforated slots in the inner ring of the processing ring, and uniformly fixed circumferentially in the perforated slots of the inner layer of the processing ring; a top ball 2, slidably mounted in each of the limiting blocks 2; an electric push rod 1, fixedly installed in the mounting cylinder; a push rod, fixedly installed on the push rod 1 of the moving push rod 1, which slides through the mounting cylinder and extends into the inner layer of the processing ring; an extrusion head, fixedly installed at the end of the push rod away from the electric push rod 1, with the inclined surface of the extrusion head facing the top ball 2; and a feeding component, mounted on the base plate and used to feed material into the processing ring.

[0006] Furthermore, the guide cylinder is made of transparent material, and the rod body of the top rod is provided with a scale. The scale on the top rod can be observed through the guide cylinder. The scale is used to conveniently adjust the electric push rod to push the top rod, thereby improving the accuracy of the top ball on the top rod for marking.

[0007] Furthermore, the external dotting component includes a sliding plate, a sliding ring, a pressure block, and a second electric push rod. The sliding plate is slidably installed on the outer wall of the guide cylinder. A sliding ring is fixedly installed on the side of the sliding plate near the processing ring. A pressure block adapted to the first top ball is fixedly installed circumferentially on the inner wall of the sliding ring. The pressure block is inclined towards the first top ball. A second electric push rod is fixedly installed on the base plate. The push rod of the second electric push rod is connected to the sliding plate. By shortening the push rod of the second electric push rod, the sliding plate and the sliding ring are driven to move towards the first top ball, so that the pressure block on the inner wall of the sliding ring presses against the first top ball, causing the first top ball to squeeze the copper tube inward to complete the inward dotting operation.

[0008] Furthermore, a guide frame is fixed at the outer feed inlet of the processing ring. The guide frame is a circular plate, which is used to correctly guide the copper tube into the processing ring. A positioning plate is fixed at the inner feed inlet of the processing ring. The positioning plate is used to accurately position the copper tube placed into the processing ring, thereby improving the accuracy of the copper tube marking.

[0009] Furthermore, the positioning plate is a circular plate, the side of the positioning plate facing the feed is an inclined plate, the edge of the positioning plate protrudes from the inner outer wall of the processing ring, and the positioning plate can stably support the copper tube inserted into the processing ring.

[0010] Furthermore, the feeding component includes a feeding frame, an electric push rod four, and a pushing component. The feeding frame is provided on the base plate and is used to load the copper tubes to be marked. The electric push rod four is fixedly installed on the base plate near the feeding frame. The push rod of the electric push rod four slides through into the feeding frame. The base plate is provided with a pushing component to push the copper tubes in the feeding frame to the processing ring. The electric push rod four is used to push one copper tube in the feeding frame to the alignment processing ring at regular intervals. Together with the pushing component, the copper tube is automatically pushed into the processing ring for processing, saving manual feeding operations.

[0011] Furthermore, the pusher includes an electric push rod three and a push plate. The electric push rod three is fixedly installed on the base plate. The push plate is installed at the push rod end of the electric push rod three. The push plate is a circular plate adapted to the cross-section of the copper tube. The push plate is provided with a clamping device for holding the copper tube, thereby improving the stability of the push plate pushing the copper tube.

[0012] Furthermore, the clamping component includes clamping block one, clamping block two, and a spring. Clamping block one is symmetrically fixedly installed on the side of the push plate near the feeding frame, and clamping block two is slidably installed on clamping block one. The clamping end faces of clamping block one and clamping block two are provided with arc surfaces, and a spring is provided between clamping block one and clamping block two.

[0013] This utility model has the following advantages:

[0014] 1. This utility model can complete the inward or outward dotting operation of the copper tube in one go by using the first and second dotting balls. This not only improves the efficiency of a single dotting operation, but also meets the dotting needs of different types.

[0015] 2. This utility model uses a transparent guide tube and scales on the push rod, allowing operators to visually observe the position of the push rod and thus more accurately adjust the movement of the electric push rod, ensuring the accuracy and consistency of the marking. The guide frame and positioning plate set at the inner and outer feed inlets of the processing ring help to correctly guide and stably support the copper tube, further improving the marking accuracy of the copper tube.

[0016] 3. This utility model can also realize automatic feeding and pushing of copper tubes through the design of the feeding component, reduce manual intervention, improve the automation level of the entire production line, reduce labor costs, and ensure a continuous and stable production process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the components of this utility model, including the guide cylinder, processing ring, limiting block 1, and top ball 1.

[0019] Figure 3 This is a three-dimensional structural diagram of the electric push rod, push rod, and extrusion head components of this utility model.

[0020] Figure 4 This diagram shows the connection relationship between the electric push rod 3, the feeding frame, the electric push rod 4, and the push plate of this utility model.

[0021] Figure 5 This is a schematic diagram showing the relationship between the push plate, clamping block one, clamping block two, and spring of this utility model.

[0022] The meanings of the labels in the attached diagram are as follows: 1-Base plate, 100-Copper tube, 2-Mounting cylinder, 3-Guide cylinder, 4-Processing ring, 5-Limiting block one, 6-Top ball one, 7-Limiting block two, 8-Top ball two, 9-Electric push rod one, 10-Top rod, 101-Scale, 11-Extrusion head, 12-Sliding plate, 13-Sliding ring, 14-Pressure block, 15-Electric push rod two, 16-Guide frame, 17-Positioning plate, 18-Electric push rod three, 19-Feeding frame, 20-Electric push rod four, 21-Push plate, 22-Clamping block one, 221-Clamping block two, 23-Spring. Detailed Implementation

[0023] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] An automatic marking device for processing copper pipe fittings for air conditioning, such as Figures 1-5As shown, the device includes a base plate 1, which serves as the assembly carrier for the dotting device; it also includes: a mounting cylinder 2, fixedly mounted on the left side of the base plate 1, the mounting cylinder 2 being an airborne cylinder; a guide cylinder 3, fixedly connected to the side wall of the mounting cylinder 2; a processing ring 4, fixedly connected to the side of the guide cylinder 3 away from the mounting cylinder 2, the processing ring 4 being a double-layered ring, with multiple perforated slots circumferentially formed on both layers of the processing ring 4; limiting blocks 5, the number of which is the same as the number of perforated slots on the outer ring of the processing ring 4, and uniformly fixed circumferentially at the perforated slots on the outer layer of the processing ring 4; a top ball 6, slidably disposed within each limiting block 5, the limiting block 5 being an arc-shaped clamping plate that movably holds the top ball 6 inside; and an outer dotting component, disposed on the base plate 1, which pushes the top ball 6 and pushes it inward toward the copper tube 100 inserted into the processing ring 4. The equipment includes: a locating block 2 (7), with the same number of locating blocks as the inner ring of the processing ring 4, and uniformly fixed circumferentially in the inner ring of the processing ring 4; a top ball 2 (8), slidably disposed within each locating block 2 (7); an electric push rod 1 (9), fixedly installed inside the mounting cylinder 2; a push rod 10, fixedly installed on the push rod 1 of the moving push rod 1, which slides through the mounting cylinder 2 and extends into the inner layer of the processing ring 4; an extrusion head 11, fixedly installed at the end of the push rod 10 away from the electric push rod 1 (9), with the inclined surface of the extrusion head 11 facing the top ball 2 (8); and a feeding component, located on the base plate 1 and used to feed material into the processing ring 4. By inserting the copper tube 100 to be located between the inner and outer layers of the processing ring 4, the locating operation of the copper tube 100 inward or outward can be completed in one go by the top ball 1 (6) or the top ball 2 (8) as needed.

[0025] like Figure 2 and Figure 3 As shown, the guide cylinder 3 is made of transparent material, and the rod body of the push rod 10 is provided with a scale 101. The scale 101 on the push rod 10 can be observed through the guide cylinder 3. The scale 101 is used to conveniently adjust the electric push rod 9 to push the push rod 10, thereby improving the accuracy of the extrusion head 11 on the push rod 10 pressing the top ball 8 to make dots.

[0026] like Figure 3 As shown, the external dotting component includes a sliding plate 12, a sliding ring 13, a pressure block 14, and an electric push rod 15. The sliding plate 12 is slidably installed on the outer wall of the guide cylinder 3. The sliding ring 13 is fixedly installed on the side of the sliding plate 12 near the processing ring 4. The pressure block 14, which is adapted to the top ball 6, is fixedly installed circumferentially on the inner wall of the sliding ring 13. The pressure block 14 is inclined towards the top ball 6. The electric push rod 15 is fixedly installed on the bottom plate 1. The push rod of the electric push rod 15 is connected to the sliding plate 12. By shortening the push rod of the electric push rod 15, the sliding plate 12 and the sliding ring 13 are driven to move towards the top ball 6, so that the pressure block 14 on the inner wall of the sliding ring 13 presses against the top ball 6, so that the top ball 6 squeezes the copper tube 100 inward to complete the inward dotting operation.

[0027] like Figure 2 and Figure 3 As shown, a guide frame 16 is fixed at the outer feed port of the processing ring 4. The guide frame 16 is a circular plate. The circular plate is used to correctly guide the copper tube 100 into the processing ring 4. A positioning plate 17 is fixed at the inner feed port of the processing ring 4. The positioning plate 17 is used to accurately position the copper tube 100 inserted into the processing ring 4 and improve the accuracy of the marking of the copper tube 100. The positioning plate 17 is a circular plate. The side of the positioning plate 17 facing the feed is an inclined plate. The edge of the positioning plate 17 protrudes from the inner outer wall of the processing ring 4. The positioning plate 17 can stably support the copper tube 100 inserted into the processing ring 4.

[0028] like Figure 1 and Figure 4 As shown, the feeding component includes a feeding frame 19, an electric push rod 20, and a pusher. The feeding frame 19 is provided on the base plate 1. The feeding frame 19 is used to load copper tubes 100 to be marked. An electric push rod 20 is fixedly installed on the base plate 1 near the feeding frame 19. The push rod of the electric push rod 20 slides through into the feeding frame 19. The base plate 1 is provided with a pusher to push the copper tubes 100 in the feeding frame 19 to the processing ring 4. The electric push rod 20 is used to push one copper tube 100 in the feeding frame 19 to the alignment processing ring 4 at regular intervals. Together with the pusher, the copper tube 100 is automatically pushed into the processing ring 4 for processing, saving manual feeding operations.

[0029] like Figure 1 and Figure 4 As shown, the pusher includes an electric push rod 18 and a push plate 21. The electric push rod 18 is fixedly installed on the base plate 1. The push plate 21 is installed at the end of the push rod of the electric push rod 18. The push plate 21 is a circular plate adapted to the cross section of the copper tube 100. The push plate 21 is provided with a clamping device for holding the copper tube 100, which improves the stability of the push plate 21 pushing the copper tube 100.

[0030] like Figure 4 and Figure 5 As shown, the clamping components include clamping block 1 22, clamping block 221 and spring 23. Clamping block 1 22 is symmetrically fixed on the side of the push plate 21 near the feeding frame 19. Clamping block 221 is slidably installed on clamping block 1 22. The clamping end faces of clamping block 1 22 and clamping block 221 are set as arc surfaces. Spring 23 is provided between clamping block 1 22 and clamping block 221.

[0031] When using this device to perform dotting processing on copper tubes 100, first, the copper tubes 100 to be dotted are neatly arranged in the loading frame 19. The electric push rod 20 is activated at a timed interval, pushing one copper tube 100 from the loading frame 19 to a position aligned with the processing ring 4. Then, the electric push rod 18 is activated, extending and driving the push plate 21 to further and accurately push the copper tube 100 into the processing ring 4. When the push plate 21 contacts the copper tube 100, the copper tube 100 overcomes the elastic force of the spring 23 and is locked onto the push plate 21. Clamping blocks 1 (22) and 221 ensure the stability and accuracy of the copper tube 100 during the pushing process. When the copper tube 100 is correctly inserted between the inner and outer layers of the processing ring 4, the guide frame 16 and the positioning plate 17 work together to ensure the accurate positioning of the copper tube 100 during processing. The guide frame 16 helps the copper tube 100 smoothly enter the outer layer of the processing ring 4, while the positioning plate 17 ensures the accurate positioning of the copper tube 100 in the inner layer of the processing ring 4. Next, according to the actual marking requirements of the copper tube 100, if it is necessary to mark the copper tube 100... When marking from the outside in, the electric push rod 15 drives the sliding plate 12 and its sliding ring 13 to move, causing the pressure block 14 inside the sliding ring 13 to press the top ball 6 inside the limiting block 5 to squeeze the copper tube 100 inward, thus completing the external marking. If it is necessary to mark the copper tube 100 from the inside out, the electric push rod 9 is activated. The electric push rod 9 pushes the top rod 10 out of the mounting cylinder 2, and makes the pressing head 11 at the end of the top rod 10 contact the top ball 8 inside the limiting block 7. The pressing head 11 is designed with a slope. As the top rod 10 advances, It will gradually force the top ball 8 to move outward and eventually hit the inner wall of the copper tube 100 to form a dot mark. The guide cylinder 3 is made of transparent material and has a scale 101, which allows the operator to observe the movement of the top rod 10, making it easy to adjust the dot depth and improve the accuracy. When the copper tube 100 completes the dot mark, the electric push rod 9 and the electric push rod 15 are reset accordingly. At this time, the electric push rod 18 is clamped by the clamping block 22 and the clamping block 221 on the push plate 21 and takes out the copper tube 100 in the processing ring 4, thus completing the discharge of the copper tube 100.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic marking device for processing copper pipe fittings for air conditioning, comprising a base plate (1); Its characteristic is that it also include: The mounting cylinder (2) is fixedly installed on the base plate (1); The guide cylinder (3) is fixedly connected to the side wall of the mounting cylinder (2); The processing ring (4) is fixedly connected to the side of the guide cylinder (3) away from the mounting cylinder (2). The processing ring (4) is a double-layer ring body, and multiple perforated grooves are circumferentially opened on both layers of the processing ring (4). The number of limiting blocks (5) is the same as the number of the outer ring perforated grooves of the processing ring (4), and they are uniformly fixed in the outer perforated grooves of the processing ring (4) in the circumferential direction. Top ball 1 (6) is slidably disposed in each of the limiting blocks 1 (5), and the limiting block 1 (5) is an arc clamp that movably clamps the top ball 1 (6) inside. An external dotting component is set on the base plate (1). The external dotting component pushes the top ball (6) and makes dots on the copper tube (100) placed in the processing ring (4). The number of limiting blocks 2 (7) is the same as the number of the inner ring perforated grooves of the processing ring (4), and they are uniformly fixed in the inner perforated grooves of the processing ring (4) in the circumferential direction. The top ball (8) is slidably disposed within each of the limiting blocks (7); Electric push rod 1 (9) is fixedly installed inside the mounting cylinder (2); The push rod (10) is fixedly installed on the push rod of the first moving push rod. The push rod (10) slides through the mounting cylinder (2) and extends into the inner layer of the processing ring (4). The extrusion head (11) is fixedly installed at the end of the top rod (10) away from the electric push rod (9); The feeding component is located on the base plate (1) and is used to feed material into the processing ring (4).

2. The automatic marking device for processing air conditioning copper pipe fittings according to claim 1, characterized in that, The guide cylinder (3) is made of transparent material, and the top rod (10) has a scale (101) on its body.

3. The automatic marking device for processing air conditioning copper pipe fittings according to claim 2, characterized in that, The external marking component includes a sliding plate (12), a sliding ring (13), a pressure block (14), and an electric push rod (15). The sliding plate (12) is slidably installed on the outer wall of the guide cylinder (3). The sliding ring (13) is fixedly installed on the side of the sliding plate (12) near the processing ring (4). The pressure block (14) adapted to the top ball (6) is fixedly installed circumferentially on the inner wall of the sliding ring (13). The electric push rod (15) is fixedly installed on the bottom plate (1). The push rod of the electric push rod (15) is connected to the sliding plate (12).

4. An automatic marking device for processing air conditioning copper pipe fittings according to claim 3, characterized in that, A guide frame (16) is fixed at the outer feed port of the processing ring (4). The guide frame (16) is a circular plate. The circular plate is used to correctly guide the copper tube (100) into the processing ring (4). A positioning plate (17) is fixed at the inner feed port of the processing ring (4). The positioning plate (17) is used to accurately position the copper tube (100) placed into the processing ring (4).

5. An automatic marking device for processing copper pipe fittings for air conditioning according to claim 4, characterized in that, The positioning plate (17) is a circular plate. The side of the positioning plate (17) facing the feed is an inclined plate. The edge of the positioning plate (17) protrudes from the inner outer wall of the processing ring (4). The positioning plate (17) can stably support the copper tube (100) inserted into the processing ring (4).

6. An automatic marking device for processing copper pipe fittings for air conditioning according to claim 5, characterized in that, The feeding component includes a feeding frame (19), an electric push rod four (20), and a pusher. The feeding frame (19) is provided on the base plate (1). An electric push rod four (20) is fixedly installed on the base plate (1) near the feeding frame (19). The push rod of the electric push rod four (20) slides through into the feeding frame (19). The pusher is provided on the base plate (1) to push the copper tube (100) in the feeding frame (19) to the processing ring (4).

7. An automatic marking device for processing copper pipe fittings for air conditioning according to claim 6, characterized in that, The pusher includes an electric push rod three (18) and a push plate (21). The electric push rod three (18) is fixedly installed on the base plate (1), and the push plate (21) is installed at the push rod end of the electric push rod three (18).

8. An automatic marking device for processing copper pipe fittings for air conditioning according to claim 7, characterized in that, It also includes clamping components, which include clamping block one (22), clamping block two (221) and spring (23). Clamping block one (22) is symmetrically fixed on the side of the push plate (21) near the feeding frame (19). Clamping block two (221) is slidably installed on clamping block one (22). The clamping end faces of clamping block one (22) and clamping block two (221) are set as arc surfaces. Spring (23) is provided between clamping block one (22) and clamping block two (221).

Citation Information

Patent Citations

  • Automatic dotting device for air conditioner copper pipe fitting machining

    CN219853155U