Pipe cutting machine for automobile water pipe

The design of the limit plate and clamping plate driven by the motor and cylinder realizes the automated operation of the car water pipe cutting machine, which solves the problems of inconvenience of manual control and unsafe clamping, and improves the flexibility and safety of the cutting machine.

CN224183209UActive Publication Date: 2026-05-01RIZHAO RUIJIN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RIZHAO RUIJIN AUTO PARTS CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing automotive water pipe cutting machines require manual control of the moving rod, which is inconvenient to operate and the clamping is not safe or reliable enough.

Method used

The system uses a motor to control the movement of the limit plate, combined with a cylinder to drive the clamping plate to position and clamp the water pipe, and utilizes a reversible self-locking motor and cylinder to achieve automated operation.

Benefits of technology

It improves the flexibility and safety of the cutting machine, ensuring the accuracy of the cutting length and the stable clamping of the water pipe.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pipe cutting machine for an automobile water pipe relates to the technical field of cutting devices and comprises a bottom plate, a rack is arranged on the bottom plate, graduated scales are fixedly mounted on the front side and the rear side of the rack, two rotating seats are transversely and fixedly mounted on the bottom plate between the two graduated scales, a lead screw is rotatably mounted between the two rotating seats, and a limiting plate is rotationally connected to the lead screw. The two ends of the limiting plate are slidably installed on the graduated scale respectively. The limiting plate is controlled by the motor to move, the problem that a moving rod needs to be controlled manually is solved, and the flexibility and the reliability of the device are improved.
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Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a pipe cutting machine for automotive water pipes. Background Technology

[0002] Water pipes are part of the cooling system, and their main function is to transfer coolant and assist the coolant in dissipating heat from the engine. However, their performance is relatively poor. Nowadays, there are plastic automotive cooling water pipes that are water-assisted injection molded. For the convenience of injection molding and to save molds and production time, the inlet and outlet pipes are usually connected as one piece and injection molded in one go. This requires cutting the water pipes later.

[0003] Chinese utility model patent application number CN202021509303.3 discloses a pipe cutting machine for automotive water pipes, including a support leg, a base plate, a frame, a first cylinder, a first connecting plate, a second connecting plate, a blade, a cutting motor, a second cylinder, an arc-shaped fixing plate, a first support platform, a second support platform, a PLC, a drive switch, a measuring limit rod structure, and a noise reduction protective cover structure. The support leg has a base plate welded to its upper end; the frame is welded around the upper surface of the base plate; the first cylinder is bolted to the left side of the upper surface of the frame; the first connecting plate is bolted to the output shaft of the first cylinder; the second connecting plate is welded to the left and right sides of the lower end of the first connecting plate; the blade is mounted on the lower part between the second and second connecting plates via bearings. The measuring moving rod requires manual control and tightening of fixing bolts for fixation, making operation very inconvenient. Utility Model Content

[0004] This utility model proposes a pipe cutting machine for automobile water pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pipe cutting machine for automotive water pipes includes a base plate with a frame mounted on it. Scales are fixedly mounted on both the front and rear sides of the frame. Two rotating seats are horizontally fixedly mounted on the base plate between the two scales. A lead screw is rotatably mounted between the two rotating seats, and a limit plate is screwed onto the lead screw. The two ends of the limit plate are slidably mounted on the scales. A cylinder is mounted on one side of the limit plate, and a gear is rotatably mounted on the other side. Guide rods are provided at the upper and lower ends of the gear, and a first clamping plate and a second clamping plate are slidably mounted at the two ends of the guide rods. A through groove is also provided on the limit plate, and a connecting plate is slidably mounted within the through groove. One end of the connecting plate is fixedly connected to the output shaft of the cylinder, and the other end of the connecting plate is connected to the first clamping plate. Both the first and second clamping plates are provided with racks, and the first and second clamping plates mesh with the upper and lower ends of the racks respectively.

[0007] A further preferred embodiment of this utility model is as follows: a motor is fixedly installed on one side of one of the rotating seats, and the output shaft of the motor passes through the rotating seat and is fixedly connected to the lead screw.

[0008] A further preferred embodiment of this utility model: both the first clamping plate and the second clamping plate are composed of a connecting part and a clamping part. The connecting part is slidably mounted on the guide rod, and one end of the connecting part is fixedly connected to the clamping part. The clamping part is L-shaped.

[0009] A further preferred embodiment of this utility model is as follows: the connecting parts of the first clamping plate and the second clamping plate are respectively fixedly connected to one end of the rack, and a sliding groove is provided on the limiting plate, in which the rack is slidably installed.

[0010] A further preferred embodiment of this utility model is as follows: the limiting plate is shaped like a "Z", a cylinder is fixedly installed on the protruding side of the limiting plate, and the straight ends of the clamping parts of the first clamping plate and the second clamping plate are flush with the concave side of the limiting plate.

[0011] The present invention has the following advantages:

[0012] 1. This utility model uses a motor to control the movement of the limit plate, which solves the problem of needing to manually control the moving rod and increases the flexibility and reliability of the device.

[0013] 2. This utility model uses a cylinder to control the first clamping plate and the second clamping plate to clamp the pipe cutting end, which increases the safety of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a side view of the limiting plate of this utility model.

[0016] Figure 3 This is a top view of the structure of this utility model without the frame assembled.

[0017] Figure 4 This is a top view of the first clamping plate of this utility model.

[0018] In the diagram: 1 base plate, 2 frame, 3 scale, 4 motor, 5 limit plate, 6 guide rod, 7 first clamping plate, 8 second clamping plate, 9 gear, 10 rack, 11 through groove, 12 slide groove, 13 cylinder, 14 lead screw, 15 rotating seat, 16 connecting part, 17 clamping part. Detailed Implementation

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

[0020] according to Figure 1-4 As shown, a pipe cutting machine for automotive water pipes includes a base plate 1, on which a frame 2 is mounted. Scales 3 are fixedly mounted on both the front and rear sides of the frame 2. Two rotating seats 15 are horizontally fixedly mounted on the base plate 1 between the two scales 3. A lead screw 14 is rotatably mounted between the two rotating seats 15. A limit plate 5 is screwed onto the lead screw 14. Both ends of the limit plate 5 are slidably mounted on the scales 3. A cylinder 13 is mounted on one side of the limit plate 5, and a gear 9 is rotatably mounted on the other side of the limit plate 5. Guide rods 6 are provided at the upper and lower ends of gear 9. A first clamping plate 7 and a second clamping plate 8 are slidably installed at the two ends of the guide rods 6, respectively. A through groove 11 is also provided on the limiting plate 5. A connecting plate is slidably installed in the through groove 11. One end of the connecting plate is fixedly connected to the output shaft of cylinder 13, and the other end of the connecting plate is connected to the first clamping plate 7. Both the first clamping plate 7 and the second clamping plate 8 are provided with racks 10. The first clamping plate 7 and the second clamping plate 8 are respectively meshed with the upper and lower ends of the rack 10 through the racks 10.

[0021] One of the rotating seats 15 has a motor 4 fixedly mounted on one side. The output shaft of the motor 4 passes through the rotating seat 15 and is fixedly connected to the lead screw 14. The motor used here is a self-locking motor that can rotate in both directions. This motor is existing technology and will not be described in detail.

[0022] The first clamping plate 7 and the second clamping plate 8 are both composed of a connecting part 16 and a clamping part 17. The connecting part 16 is slidably mounted on the guide rod 6, and one end of the connecting part 16 is fixedly connected to the clamping part 17. The clamping part 17 is L-shaped.

[0023] The connecting part 16 of the first clamping plate 7 and the second clamping plate 8 is fixedly connected to one end of the rack 10, and the limiting plate 5 is provided with a sliding groove 12, in which the rack 10 is slidably installed.

[0024] The limiting plate 5 is shaped like a "Z". A cylinder 13 is fixedly installed on the protruding side of the limiting plate 5. The cylinder 13 can self-lock. The straight end of the clamping part 17 of the first clamping plate 7 and the second clamping plate 8 is flush with the concave side of the limiting plate 5. This setting can ensure the accuracy of the scale and the accuracy of the cut water pipe length.

[0025] The other devices involved in this application are consistent with those in the prior art and have not been changed, so they will not be described in detail here.

[0026] Working principle: When cutting the water pipe, one end of the water pipe is placed between the first clamping plate 7 and the second clamping plate 8. The cylinder 13 retracts, and the first clamping plate 7 moves towards the middle. The rack 10 of the first clamping plate 7 drives the gear 9 to rotate, thereby causing the second clamping plate 8 to also move towards the middle. The first clamping plate 7 and the second clamping plate 8 clamp the water pipe. According to the cutting size, the motor 4 is controlled to work. The motor 4 drives the lead screw 14 to rotate. Under the limiting action of the scale 3, the lead screw 14 drives the limiting plate 5 to move towards one end of the frame 2 to the designated position.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pipe cutting machine for automotive water pipes, characterized in that: It includes a bottom plate (1), on which a frame (2) is provided. Scale rulers (3) are fixedly installed on both the front and rear sides of the frame (2). On the bottom plate (1) between the two scale rulers (3), two rotating seats (15) are horizontally and fixedly installed. A lead screw (14) is rotatably installed between the two rotating seats (15). A limiting plate (5) is screwed onto the lead screw (14). The two ends of the limiting plate (5) are respectively slidably installed on the scale rulers (3). A cylinder (13) is installed on one side of the limiting plate (5). A gear (9) is rotatably installed on the other side of the limiting plate (5). Guide rods (6) are provided at the upper and lower ends of the gear (9). The two ends of the guide rods (6) are respectively slidably installed with a first clamping plate (7) and a second clamping plate (8). A through groove (11) is also formed on the limiting plate (5). A connecting plate is slidably installed in the through groove (11). One end of the connecting plate is fixedly connected to the output shaft of the cylinder (13), and the other end of the connecting plate is connected to the first clamping plate (7). Both the first clamping plate (7) and the second clamping plate (8) are provided with racks (10). The first clamping plate (7) and the second clamping plate (8) are respectively meshed with the upper and lower ends of the rack (10) through the racks (10).

2. A pipe cutting machine for automotive water pipes as claimed in claim 1, wherein: On one side of one of the rotating seats (15), a motor (4) is fixedly installed. The output shaft of the motor (4) passes through the rotating seat (15) and is fixedly connected to the lead screw (14).

3. A pipe cutting machine for automotive water pipes as claimed in claim 1, wherein: Both the first clamping plate (7) and the second clamping plate (8) are composed of a connecting part (16) and a clamping part (17). The connecting part (16) is slidably installed on the guide rod (6). One end of the connecting part (16) is fixedly formed with the clamping part (17). The clamping part (17) is L-shaped.

4. A pipe cutting machine for automotive water pipes as claimed in claim 3, wherein: The connecting parts (16) of the first clamping plate (7) and the second clamping plate (8) are respectively fixedly connected to one end of the rack (10). And a sliding groove (12) is formed on the limiting plate (5). The rack (10) is slidably installed in the sliding groove (12).

5. The pipe cutting machine for automotive water pipes according to claim 1, characterized in that: The limiting plate (5) is in a U-shape. The protruding side of the limiting plate (5) is fixedly installed with a cylinder (13). The straight ends of the clamping parts (17) of the first clamping plate (7) and the second clamping plate (8) are flush with the concave side of the limiting plate (5).

Citation Information

Patent Citations

  • Pipe cutting machine for automobile water pipe

    CN213259676U