Automobile oil pipe double-layer ring upsetting device

By using a sliding fixed plate driven by a servo motor and multiple hydraulic cylinders working in concert, multiple stamping operations can be completed at one station, solving the problem of low production efficiency of existing equipment and improving the efficiency of double-ring pressing of automotive oil pipes.

CN224087778UActive Publication Date: 2026-04-07SHANGHAI CHENGMEI PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing double-ring pressing devices for automotive oil lines require repeated operation procedures when facing complex working conditions, resulting in low production efficiency.

Method used

The sliding fixed plate driven by a servo motor and multiple hydraulic cylinders work together to complete multiple stamping operations in one station. The sliding fixed plate drives the punch fixed plate to move in parallel, and the pressing and retraction of multiple hydraulic cylinders complete multiple pressing operations.

Benefits of technology

This reduces the time of the entire pressing process, improves production efficiency, and reduces repetitive operations by personnel and equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224087778U_ABST
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Abstract

The utility model discloses an automobile oil pipe double-layer ring upsetting device, and relates to the technical field of automobile oil pipe upsetting, the automobile oil pipe double-layer ring upsetting device comprises a base, the top of the base is fixedly connected with a fixing support, the top of the base is fixedly connected with an oil cylinder fixing plate, and one end of the oil cylinder fixing plate is fixedly connected with a second oil cylinder. A first oil cylinder is fixedly connected to the top of the fixing support, an upper die fixing plate is fixedly connected to the output end of the first oil cylinder, an upper die plate is fixedly connected to the end, away from the first oil cylinder, of the upper die fixing plate, a lower die fixing plate is fixedly connected to the top of the base, and a lower die plate is fixedly connected to the top of the lower die fixing plate. By driving the upper and lower bevels to move backwards, the upper sliding die block and the lower sliding die block which are mounted in the upper die fixing plate and the lower die fixing plate move backwards, the upper and lower sliding dies return to original positions, the dies are opened through the first oil cylinder, and finally an oil pipe is taken out, so that the time of the whole upsetting process is shortened, and the upsetting efficiency is improved. And the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive oil pipe pressing technology, specifically to a double-ring pressing device for automotive oil pipes. Background Technology

[0002] The double-ring crimping device for automotive oil pipes is a specialized piece of equipment used in the manufacturing process of automotive oil pipes. It is used to perform ring crimping at both ends of the oil pipe to ensure the sealing and pressure resistance of the oil pipe. This crimping process is commonly used to manufacture metal oil pipes, such as stainless steel oil pipes, for use in automotive fuel systems, braking systems, etc.

[0003] In existing double-ring pressing devices for automotive oil pipes, the operator holds the oil pipe and places it in the semi-circular groove of the fixed clamping block. A positioning mechanism is used for positioning, and then a sliding cylinder moves the sliding clamping block to engage with the fixed clamping block, clamping the oil pipe. After the positioning mechanism resets, a power mechanism moves a slide table, first aligning the flat punch with the end of the oil pipe, and then the pressing mechanism moves the flat punch to press the end of the oil pipe. Next, the power mechanism moves the slide table so that a protruding punch is aligned with the end of the oil pipe, and the pressing mechanism moves the protruding punch to press the end of the oil pipe, ensuring the oil passages within the pipe are unobstructed and preventing blockages. Finally, all mechanisms reset, and the oil pipe can be removed. However, when facing complex working conditions, such as pressing a single oil pipe two or more times, the existing double-ring pressing device requires repeating the steps of moving the slide table with the power mechanism and pressing the punch with the pressing mechanism. This undoubtedly increases the overall pressing time, thus reducing production efficiency. Utility Model Content

[0004] This utility model provides a double-ring pressing device for automotive oil pipes, which has the advantages of reducing the time of the entire pressing process and improving production efficiency, thereby solving the problem of pressing automotive oil pipes.

[0005] To reduce the overall pressing time and improve production efficiency, this utility model provides the following technical solution: a double-layer ring pressing device for automotive oil pipes, including a base, a fixed bracket fixedly connected to the top of the base, a first hydraulic cylinder fixedly connected to the top of the fixed bracket, and a hydraulic cylinder fixing plate fixedly connected to the top of the base. A second hydraulic cylinder is fixedly connected to one end of the hydraulic cylinder fixing plate, an upper mold fixing plate is fixedly connected to the output end of the first hydraulic cylinder, an upper template is fixedly connected to the end of the upper mold fixing plate away from the first hydraulic cylinder, a lower mold fixing plate is fixedly connected to the top of the base, and a lower template is fixedly connected to the top of the lower mold fixing plate.

[0006] As a preferred embodiment of this utility model, the output end of the second oil cylinder is provided with a slider, and the end of the slider away from the second oil cylinder is fixedly connected to a slide rail. The outer surface of the slide rail is movably connected to a sliding fixing plate. The top of the sliding fixing plate is threadedly connected to a threaded rod through a sliding block. The threaded rod is rotatably connected to one end of the slider through two connecting brackets, and a driving component is fixedly connected to one end of the threaded rod.

[0007] As a preferred embodiment of this utility model, punch one, punch two, and punch three are fixedly connected to the end of the sliding fixed plate away from the slider, and punch fixing plate is detachably connected to the end of the sliding fixed plate away from the slider by bolts. The punch fixing plate is provided with through holes that match punch one, punch two, and punch three, and a plurality of pressure rods are fixedly connected to the end of the punch fixing plate away from the sliding fixed plate. The plurality of pressure rods are respectively sleeved on the outer surface of punch one, punch two, and punch three.

[0008] As a preferred technical solution of this utility model, two oblique blocks are slidably connected to the inner walls of the grooves opened on the upper mold fixing plate and the lower mold fixing plate, respectively, and an upper sliding module and a lower sliding module are slidably connected to the opposite ends of the two oblique blocks.

[0009] As a preferred embodiment of this utility model, a pad is fixedly connected to one end of each of the two obliquely cut blocks, and a third oil cylinder is fixedly connected to the end of the pad away from the obliquely cut block.

[0010] As a preferred embodiment of this utility model, the driving component is a servo motor, which is fixedly connected to one side wall of the connecting bracket, and the output end of the servo motor is fixedly connected to one end of the threaded rod.

[0011] As a preferred embodiment of this utility model, the slider is slidably connected to the top of the base via two sliding brackets.

[0012] Compared with the prior art, this utility model provides a double-layer ring pressing device for automotive oil pipes, which has the following beneficial effects:

[0013] This double-ring pressing device for automotive oil pipes works by placing the oil pipe on the lower module, then pressing down the first cylinder via a start switch to secure the upper module to the lower module. The second cylinder then presses a punch into the oil pipe, widening the opening. After this, the punch retracts. A servo motor then moves the punch fixing plate a short distance via a sliding block and a sliding fixing plate, stopping there. The second cylinder then presses a second punch into the mold, pressing the oil pipe out of the first ring. The servo motor then moves the punch fixing plate forward a short distance and stops there. The second cylinder then presses a third punch into the mold, shaping the oil pipe. The servo motor then returns the punch fixing plate to its original position. Finally, the third cylinder moves the two oblique cutters forward, securing them to the lower mold of the upper module. The upper and lower sliding dies within the fixed plate begin to move, eventually enclosing the oil pipe. Then, the second hydraulic cylinder is activated, pressing punch one into the round pipe, widening the pipe opening, and retracting it. The servo motor is then activated again, moving the punch fixing plate forward. The second hydraulic cylinder is activated again, pressing punch two into the mold, and the oil pipe is pushed out of ring two. The servo motor is activated again, moving the punch fixing plate forward a short distance and stopping. The second hydraulic cylinder operates again, pressing punch three into the mold to complete the shaping, and then retracting it to its original position. After completion, the servo motor is activated, pushing the punch fixing plate back to its initial position. At this time, the third hydraulic cylinder operates again, driving the upper and lower oblique cutters to move backward. Simultaneously, the upper and lower sliding modules installed in the upper and lower mold fixing plates move backward, the upper and lower sliding dies retract to their original positions, and the mold is opened by the first hydraulic cylinder. Finally, the oil pipe is removed. This device reduces the overall pressing process time and improves production efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of the double-layer ring pressing device for automotive oil pipes provided by this utility model;

[0015] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram provided by the present invention;

[0017] Figure 4 This is a structural schematic diagram of the sliding fixing plate and the punch fixing plate provided by this utility model.

[0018] In the diagram: 1. Base; 2. Fixed bracket; 3. Hydraulic cylinder fixing plate; 4. First hydraulic cylinder; 5. Second hydraulic cylinder; 6. Upper mold fixing plate; 7. Upper template; 8. Lower mold fixing plate; 9. Lower template; 10. Slider; 11. Sliding fixing plate; 12. Threaded rod; 13. Punch one; 14. Punch two; 15. Punch three; 16. Punch fixing plate; 17. Pressure rod; 18. Beveled block; 19. Upper sliding module; 20. Lower sliding module; 21. Third hydraulic cylinder; 22. Servo motor. 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. 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.

[0020] Please see Figures 1-4 This utility model discloses a double-layer ring pressing device for automotive oil pipes, including a base 1, a fixed bracket 2 fixedly connected to the top of the base 1, a first oil cylinder 4 fixedly connected to the top of the fixed bracket 2, and an oil cylinder fixing plate 3 fixedly connected to the top of the base 1. A second oil cylinder 5 is fixedly connected to one end of the oil cylinder fixing plate 3. An upper mold fixing plate 6 is fixedly connected to the output end of the first oil cylinder 4. An upper template 7 is fixedly connected to the end of the upper mold fixing plate 6 away from the first oil cylinder 4. A lower mold fixing plate 8 is fixedly connected to the top of the base 1, and a lower template 9 is fixedly connected to the top of the lower mold fixing plate 8.

[0021] Specifically, two oblique cutting blocks 18 are slidably connected to the inner walls of the grooves opened on the upper mold fixing plate 6 and the lower mold fixing plate 8, respectively. An upper sliding module 19 and a lower sliding module 20 are slidably connected to the opposite ends of the two oblique cutting blocks 18, respectively. A pad is fixedly connected to one end of each of the two oblique cutting blocks 18. A third hydraulic cylinder 21 is fixedly connected to the end of the pad away from the oblique cutting block 18. Before the automotive oil pipe is pressed, the oblique cutting block 18, the upper sliding module 19 and the lower sliding module 20 are moved forward by the third hydraulic cylinder 21 through the pad to fix the automotive oil pipe. After the automotive oil pipe is processed, the oblique cutting block 18 can be moved backward by the third hydraulic cylinder 21 through the pad. At this time, the upper sliding module 19 and the lower sliding module 20 installed in the upper and lower mold fixing plates 8 move backward, thereby causing the upper and lower molds to return to their original positions.

[0022] In this embodiment, the output end of the second cylinder 5 is provided with a slider 10. The slider 10 is slidably connected to the top of the base 1 through two sliding brackets. The end of the slider 10 away from the second cylinder 5 is fixedly connected to a slide rail. The outer surface of the slide rail is movably connected to a sliding fixing plate 11. The top of the sliding fixing plate 11 is threadedly connected to a threaded rod 12 through a sliding block. The threaded rod 12 is rotatably connected to one end of the slider 10 through two connecting brackets. A driving component is fixedly connected to one end of the threaded rod 12.

[0023] Specifically, the driving component is a servo motor 22, which is fixedly connected to one side wall of the connecting bracket, and the output end of the servo motor 22 is fixedly connected to one end of the threaded rod 12. The servo motor 22 here can drive the threaded rod 12 to rotate, thereby driving the sliding block and the sliding fixed plate 11 to move in parallel.

[0024] In this embodiment, punch one 13, punch two 14 and punch three 15 are fixedly connected to the end of the sliding fixed plate 11 away from the slider 10, and punch fixing plate 16 is detachably connected to the end of the sliding fixed plate 11 away from the slider 10 by bolts. The punch fixing plate 16 is provided with through holes that match punch one 13, punch two 14 and punch three 15, and a number of pressure rods 17 are fixedly connected to the end of the punch fixing plate 16 away from the sliding fixed plate 11. The number of pressure rods 17 are respectively sleeved on the outer surface of punch one 13, punch two 14 and punch three 15.

[0025] Specifically, punch 13, punch 2 14 and punch 3 15 can respectively perform pressing operations on the automotive oil pipe to facilitate the shaping of the automotive oil pipe.

[0026] The working principle and usage process of this utility model are as follows: First, the automotive oil pipe is placed on the lower module. Then, by starting the switch, the first cylinder 4 is pressed down, thus pressing the upper module onto the lower module. Next, the second cylinder 5 is activated, pressing the first punch 13 into the automotive oil pipe to widen the pipe opening. After completion, the first punch 13 is retracted. Then, the servo motor 22 is activated. The servo motor 22, through the sliding block and sliding fixing plate 11, drives the punch fixing plate 16 to move parallel a distance and then stops. The second cylinder 5 works again, pressing the second punch 14 into the mold to push the oil pipe out of the first ring. Then, the servo motor 22 is activated again, moving the punch fixing plate 16 forward a further distance and then stopping. The second cylinder 5 works again, pressing the third punch 15 into the mold and shaping the oil pipe. Then, the servo motor 22 is activated again, driving the punch fixing plate 16 back to its original position. At this time, the third cylinder 21 is activated, driving the upper and lower oblique cutters... Moving forward, the upper and lower sliding dies installed in the upper module lower die fixing plate 8 begin to move, eventually enclosing the oil pipe. Then, the second cylinder 5 is activated, pressing punch 13 into the round pipe, widening the pipe opening, and then retracting. Then, the servo motor 22 is activated again, moving the punch fixing plate 16 forward one end. Then, the second cylinder 5 is activated again, pressing punch 24 into the mold, and the oil pipe is pushed out of ring 2. Then, the servo motor 22 is activated again, moving the punch fixing plate 16 forward a certain distance and stopping. The second cylinder 5 works again, pressing punch 35 into the mold to complete the shaping, and then retracting to its original position. After completion, the servo motor 22 is activated, pushing the punch fixing plate 16 back to its initial position. At this time, the third cylinder 21 works again, driving the upper and lower oblique cutters to move backward. At this time, the upper sliding module 19 and the lower sliding module 20 installed in the upper die fixing plate 6 and the lower die fixing plate 8 move backward, the upper and lower sliding dies retract to their original positions, and the mold is opened by the first cylinder 4. Finally, the oil pipe is taken out.

[0027] In summary, this double-ring pressing device for automotive oil pipes reduces labor and equipment requirements and improves production efficiency by performing multiple pressing and pressing operations of ring one and ring two in one station.

[0028] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-ring pressing device for automotive oil pipes, comprising a base (1), characterized in that: The base (1) is fixedly connected to a fixed bracket (2) at the top, the fixed bracket (2) is fixedly connected to a first oil cylinder (4) at the top, and the base (1) is fixedly connected to an oil cylinder fixing plate (3) at the top. One end of the oil cylinder fixing plate (3) is fixedly connected to a second oil cylinder (5). The output end of the first oil cylinder (4) is fixedly connected to an upper mold fixing plate (6). The end of the upper mold fixing plate (6) away from the first oil cylinder (4) is fixedly connected to an upper template (7). The base (1) is fixedly connected to a lower mold fixing plate (8) at the top, and the lower mold fixing plate (8) is fixedly connected to a lower template (9) at the top.

2. The double-layer ring pressing device for automotive oil pipes according to claim 1, characterized in that: The output end of the second oil cylinder (5) is provided with a slider (10), and the end of the slider (10) away from the second oil cylinder (5) is fixedly connected to a slide rail. The outer surface of the slide rail is movably connected to a sliding fixing plate (11). The top of the sliding fixing plate (11) is threadedly connected to a threaded rod (12) through a sliding block. The threaded rod (12) is rotatably connected to one end of the slider (10) through two connecting brackets, and a driving component is fixedly connected to one end of the threaded rod (12).

3. The double-layer ring pressing device for automotive oil pipes according to claim 2, characterized in that: The sliding fixing plate (11) is fixedly connected to punch one (13), punch two (14) and punch three (15) at the end away from the slider (10), and punch fixing plate (16) is detachably connected to the end away from the slider (10) by bolts. The punch fixing plate (16) is provided with through holes that match punch one (13), punch two (14) and punch three (15), and a number of pressure rods (17) are fixedly connected to the end away from the sliding fixing plate (11). The number of pressure rods (17) are respectively sleeved on the outer surface of punch one (13), punch two (14) and punch three (15).

4. The double-layer ring pressing device for automotive oil pipes according to claim 1, characterized in that: The inner walls of the grooves opened on the upper mold fixing plate (6) and the lower mold fixing plate (8) are respectively slidably connected to two oblique cutting blocks (18), and the opposite ends of the two oblique cutting blocks (18) are respectively slidably connected to an upper sliding module (19) and a lower sliding module (20).

5. The double-layer ring pressing device for automotive oil pipes according to claim 4, characterized in that: Each of the two oblique cut blocks (18) has a pad fixedly connected to one end, and a third oil cylinder (21) is fixedly connected to the end of the pad away from the oblique cut block (18).

6. The double-ring pressing device for automotive oil pipes according to claim 2, characterized in that: The driving component is a servo motor (22), which is fixedly connected to one side wall of the connecting bracket, and the output end of the servo motor (22) is fixedly connected to one end of the threaded rod (12).

7. The double-layer ring pressing device for automotive oil pipes according to claim 2, characterized in that: The slider (10) is slidably connected to the top of the base (1) via two sliding brackets.