Pressurized pipe clamp ring pressing device

Abstract

The utility model discloses a kind of pressurized pipe fitting snap ring buckle pressing devices, it is characterized by: including installation bottom plate (1), main body frame, driving mechanism, buckle pressing mould;Gas-liquid pressure cylinder (4) is fixed at the top of gas-liquid pressure cylinder mounting plate (3), the piston rod of gas-liquid pressure cylinder (4) is set down and passes through gas-liquid pressure cylinder mounting plate (3);The buckle pressing mould includes upper buckle pressing plate (5) and lower buckle pressing plate (6), the piston rod of upper buckle pressing plate (5) and gas-liquid pressure cylinder (4) is fixed, when upper buckle pressing plate (5) is downward and adheres to lower buckle pressing plate (6), first arc-shaped gap (7) and second arc-shaped gap (8) form a round hole.The device uses gas-liquid pressure cylinder as power source, saves huge hydraulic station, overall device structure is simple, small in size, can be directly embedded as a station into automatic assembly production line.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting processing technology, specifically a pressure-boosting pipe fitting clamping device. Background Technology

[0002] In the production of automotive hoses (such as fuel lines and cooling lines), a reliable connection between the hose and metal fitting is typically required. To enhance the connection strength, a retaining ring is often fitted onto the outside of the assembled hose and fitting. The initial inner diameter of this retaining ring is larger than the outer diameter of the assembly, resulting in an assembly gap. Therefore, a crimping device is needed to apply radial pressure to the retaining ring, causing it to undergo plastic deformation, tightly wrapping the retaining ring around the outside of the hose, and achieving the specified crimping diameter. This processing method has the following drawbacks: Existing crimping equipment mostly uses a purely hydraulic drive system. This system has the following significant disadvantages: 1. This processing method requires a separate hydraulic station and oil circuit system, resulting in a large overall size and occupying a significant amount of production line space. 2. Due to its complex structure and large size, it is difficult to integrate with automated assembly lines, usually requiring a separate crimping area, leading to low material handling efficiency. 3. Changing crimping tooling (molds) for different product specifications is cumbersome and time-consuming, usually requiring specialized maintenance personnel, and cannot adapt to the production needs of different specifications. 3. Hydraulic systems themselves consume a lot of energy, and subsequent maintenance is complex and costly, with equipment procurement costs also being very high; for example, a single unit can cost up to 150,000 yuan. Therefore, there is an urgent need for a crimping device that is compact, easy to integrate, quick to change lines, and low in cost. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a pressurized pipe fitting clamping device that uses a gas-liquid booster cylinder as a power source, eliminates the need for a large hydraulic station, has a simple overall structure and small size, and can be directly embedded as a workstation into an automated assembly line.

[0004] The technical solution of this utility model is to provide a pressure-boosting pipe fitting clamping device with the following structure: a mounting base plate, a main frame, a drive mechanism, and a clamping mold; the main frame includes a main upright plate vertically fixed on the mounting base plate and a gas-liquid booster cylinder mounting plate fixed on the top of the main upright plate; the drive mechanism is a gas-liquid booster cylinder, which is fixed on the top of the gas-liquid booster cylinder mounting plate, and the piston rod of the gas-liquid booster cylinder is arranged downward and passes through the gas-liquid booster cylinder mounting plate; the clamping mold includes an upper clamping plate and a lower clamping plate, the upper clamping plate is fixed to the piston rod of the gas-liquid booster cylinder, and the lower clamping plate is fixed to the mounting base plate; the upper clamping plate has a first arc-shaped notch, and the lower clamping plate has a second arc-shaped notch, the first arc-shaped notch and the second arc-shaped notch are vertically corresponding, and when the upper clamping plate is pressed downward against the lower clamping plate, the first arc-shaped notch and the second arc-shaped notch form a circular hole.

[0005] The device also includes a positioning device, which includes a lower pressure plate mounting seat and an upper pressure plate mounting seat. The upper pressure plate mounting seat is connected to the piston rod of the gas-liquid booster cylinder. The pressure plate mounting seat is fixed to the mounting base plate. The bottom surface of the upper pressure plate mounting seat is provided with a groove, and the top of the lower pressure plate mounting seat is provided with a protrusion. When the upper pressure plate mounting seat is pressed down and pressed tightly against the lower pressure plate mounting seat, the groove and the protrusion are engaged.

[0006] The device also includes a sliding guide device comprising a guide rod base plate, a guide rod mounting plate, and two or more guide rods; The top of the upper clamping plate and the top of the upper clamping plate mounting base are both fixed to the guide rod base plate; the lower end of the guide rod is fixed to the mounting base plate through the guide rod base plate, and the upper end of the guide rod passes through the guide rod mounting plate and is limited by a linear bearing mounted on the gas-liquid booster cylinder mounting plate to ensure verticality.

[0007] The device also includes a safety cover located around the clamping mold. The safety cover has a U-shaped structure with openings on the front, top, and bottom. The top of the safety cover is fixed to the bottom of the upper clamping plate mounting seat and moves with the upper clamping plate mounting seat during operation. When the upper clamping plate mounting seat and the lower clamping plate mounting seat are in close contact, the bottom of the safety cover covers the top of the upper clamping plate mounting seat.

[0008] The upper and lower clamping plates have a T-shaped cross-section.

[0009] The device includes a gas-liquid booster cylinder connecting flange, the top of which is fixed to the piston rod of the gas-liquid booster cylinder, and the bottom of which is fixed to the guide rod mounting plate.

[0010] With the above structure, this utility model has the following advantages: 1. Because it uses a pneumatic-hydraulic booster cylinder as the power source, the bulky hydraulic station is eliminated. The overall device has a simple structure and small size, and can be directly embedded into an automated assembly line as a workstation without the need for a separate area. 2. Because the upper and lower clamping plates adopt a modular tooling design, when switching between different products, only the corresponding upper and lower clamping plates need to be quickly replaced. Ordinary production line employees can complete this task, greatly improving production flexibility. 3. Because the cost of the pneumatic source is lower than that of the hydraulic system, and the device structure is simplified, the manufacturing, maintenance, and upkeep costs are much lower than those of traditional hydraulic clamping equipment. 4. Due to the precise cooperation of the guide rod and linear bearing, the clamping process is ensured to be free of eccentric load and uniform in force. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of a pressure-boosting pipe fitting clamping device according to the present invention.

[0012] Figure 2 This is an exploded schematic diagram of a pressurized pipe fitting clamping device according to the present invention.

[0013] Figure 3 This is a schematic diagram showing the upper and lower clamping plates of this utility model.

[0014] Figure 4 This is a schematic diagram showing the split design of the lower pressure plate mounting base and the upper pressure plate mounting base of this utility model.

[0015] Figure 5 This is a schematic diagram of the drive mechanism of this utility model.

[0016] Figure 6 This is a schematic diagram showing the connection between the gas-liquid booster cylinder connecting flange and the liquid booster cylinder of this utility model.

[0017] Figure 7 This is a schematic diagram of the installation of the safety cover of this utility model.

[0018] The figure shows: 1. Mounting base plate, 2. Main body upright plate, 3. Gas-liquid booster cylinder mounting plate, 4. Gas-liquid booster cylinder, 5. Upper clamping plate, 6. Lower clamping plate, 7. First arc-shaped notch, 8. Second arc-shaped notch, 9. Lower clamping plate mounting seat, 10. Upper clamping plate mounting seat, 11. Groove, 12. Protrusion, 13. Guide rod base plate, 14. Guide rod mounting plate, 15. Guide rod, 16. Linear bearing, 17. Safety protection cover, 18. Gas-liquid booster cylinder connecting flange. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1As shown, this utility model discloses a pressurized pipe fitting clamping device, comprising a mounting base plate 1, a main frame, a drive mechanism, and a clamping mold. It utilizes a pneumatic-hydraulic pressurizing cylinder as a power source, combined with a precision guiding mechanism consisting of guide rods and linear bearings, and quickly replaceable upper and lower clamping plates, forming a compact overall clamping device structure. This specific structural combination is key to achieving miniaturization, integration, and flexibility of the equipment.

[0021] like Figure 1 and, Figure 5 and Figure 6 As shown, the main frame includes a main upright plate 2 vertically fixed on the mounting base plate and a gas-liquid booster cylinder mounting plate 3 fixed on the top of the main upright plate 2; the driving mechanism is a gas-liquid booster cylinder 4, which is fixed on the top of the gas-liquid booster cylinder mounting plate 3, and the piston rod of the gas-liquid booster cylinder 4 is arranged downward and passes through the gas-liquid booster cylinder mounting plate 3.

[0022] like Figure 3 As shown, the clamping mold includes an upper clamping plate 5 and a lower clamping plate 6. The upper clamping plate 5 is fixed to the piston rod of the gas-liquid booster cylinder 4, and the lower clamping plate 6 is fixed to the mounting base plate 1. The upper clamping plate 5 is provided with a first arc-shaped notch 7, and the lower clamping plate 6 is provided with a second arc-shaped notch 8. The first arc-shaped notch 7 and the second arc-shaped notch 8 are vertically corresponding. When the upper clamping plate 5 is pressed downward against the lower clamping plate 6, the first arc-shaped notch 7 and the second arc-shaped notch 8 form a circular hole.

[0023] like Figure 4 As shown, the device also includes a positioning device, which includes a lower clamping plate mounting seat 9 and an upper clamping plate mounting seat 10. The upper clamping plate mounting seat 10 is connected to the piston rod of the gas-liquid booster cylinder 4. The clamping plate mounting seat 9 is fixed to the mounting base plate 1. The bottom surface of the upper clamping plate mounting seat 10 is provided with a groove 11, and the top of the lower clamping plate mounting seat 9 is provided with a protrusion 12. When the upper clamping plate mounting seat 10 is pressed down and pressed tightly against the lower clamping plate mounting seat 9, the groove 11 and the protrusion 12 are engaged.

[0024] like Figure 5 As shown, the device further includes a sliding guide device comprising a guide rod base plate 13, a guide rod mounting plate 14, and two or more guide rods 15; the top of the upper clamping plate 5 and the top of the upper clamping plate mounting seat 10 are both fixed to the guide rod base plate 13; the lower end of the guide rod 15 is fixed to the mounting base plate 14 via the guide rod base plate 13, and the upper end of the guide rod 15 passes through the guide rod mounting plate 14 and is limited by a linear bearing 16 mounted on the gas-liquid booster cylinder mounting plate 3 to ensure verticality. The number of guide rods can be three or four to enhance stability.

[0025] like Figure 7As shown, the device also includes a safety cover 17 disposed around the periphery of the clamping mold. The safety cover 17 has a U-shaped structure with openings on the front, top, and bottom. The top of the safety cover 17 is fixed to the bottom of the upper clamping plate mounting seat 10 and moves with the upper clamping plate mounting seat 10 during operation. When the upper clamping plate mounting seat 10 and the lower clamping plate mounting seat 9 are in close contact, the bottom of the safety cover 17 covers the top of the upper clamping plate mounting seat 10.

[0026] like Figure 4 As shown, the upper clamping plate 5 and the lower clamping plate 6 have a T-shaped cross-section, as... Figure 3 As shown, the upper clamping plate 5 and the lower clamping plate 6 are vertically installed, with the T-shaped structure on the inner side. They are directly fixed to the lower clamping plate mounting base 9 and the upper clamping plate mounting base 10 by two bolts. The upper clamping plate 5 is bolted to the upper clamping plate mounting base 10, and the lower clamping plate 6 is fixed to the lower clamping plate mounting base 9. The bolted connection allows for the replacement of different upper clamping plates 5 and lower clamping plates 6 according to different product requirements.

[0027] like Figure 6 As shown, the device includes a gas-liquid booster cylinder connecting flange 18. The top of the gas-liquid booster cylinder connecting flange 18 is fixed to the piston rod of the gas-liquid booster cylinder 4, and the bottom is a disc structure, which is fixed to the guide rod mounting plate 14 by multiple bolts.

[0028] The working principle and operation process of a pressure-boosting pipe fitting clamping device of this utility model are as follows: Initial state: The working end of the gas-hydraulic booster cylinder is not vented, and its piston rod is in the retracted state. The upper clamping plate is at its highest point under the action of the gas-hydraulic booster cylinder reset end, forming a sufficient space between it and the lower clamping plate for placing the workpiece to be clamped (the hose connector assembly with the retaining ring already installed).

[0029] Placing the workpiece: The operator places the workpiece into the mold cavity of the lower pressure plate.

[0030] Crimping Action: When the operator depresses the pneumatic foot pedal, air is supplied to the working end of the pneumatic-hydraulic booster cylinder, connecting to compressed air at a pressure of 0.6 MPa or higher, driving the cylinder to operate. The booster cylinder converts the low-pressure air pressure into high-pressure hydraulic pressure, pushing the piston rod downwards. The piston rod, via the upper clamping plate mounting seat, drives the upper clamping plate, moving smoothly downwards along the guide rod under the guidance of the linear bearing.

[0031] Crimping complete: The upper and lower clamping plates close, applying uniform radial pressure to the retaining ring placed therein, causing it to undergo plastic deformation and reduce its diameter, thereby tightly clamping it onto the hose fitting assembly.

[0032] Return reset: After crimping is complete, the operator presses the pneumatic foot pedal again to switch the air circuit. The piston rod of the pneumatic-hydraulic booster cylinder retracts upward, causing the upper crimping plate to rise and move away from the workpiece. The operator can then remove the crimped workpiece.

Claims

1. A pressurized pipe fitting clamping ring pressing device, characterized by: The system includes a mounting base plate (1), a main frame, a drive mechanism, and a clamping mold; the main frame includes a main upright plate (2) vertically fixed to the mounting base plate and a gas-liquid booster cylinder mounting plate (3) fixed to the top of the main upright plate (2); the drive mechanism is a gas-liquid booster cylinder (4), which is fixed to the top of the gas-liquid booster cylinder mounting plate (3), with the piston rod of the gas-liquid booster cylinder (4) facing downwards and passing through the gas-liquid booster cylinder mounting plate (3); the clamping mold includes an upper clamping plate (5) and a... The lower pressure plate (6) is fixed to the piston rod of the gas-liquid booster cylinder (4), and the lower pressure plate (6) is fixed to the mounting base plate (1). The upper pressure plate (5) is provided with a first arc-shaped notch (7), and the lower pressure plate (6) is provided with a second arc-shaped notch (8). The first arc-shaped notch (7) and the second arc-shaped notch (8) are vertically aligned. When the upper pressure plate (5) is pressed against the lower pressure plate (6) downwards, the first arc-shaped notch (7) and the second arc-shaped notch (8) form a circular hole.

2. The pressurized pipe coupling ring clamping and pressing device according to claim 1, characterized in that: The device also includes a positioning device, which includes a lower pressure plate mounting seat (9) and an upper pressure plate mounting seat (10). The upper pressure plate mounting seat (10) is connected to the piston rod of the gas-liquid booster cylinder (4). The pressure plate mounting seat (9) is fixed to the mounting base plate (1). The bottom surface of the upper pressure plate mounting seat (10) is provided with a groove (11). The top of the lower pressure plate mounting seat (9) is provided with a protrusion (12). When the upper pressure plate mounting seat (10) is pressed down and pressed tightly against the lower pressure plate mounting seat (9), the groove (11) and the protrusion (12) are engaged.

3. The pressurized pipe fitting clamping ring buckling device according to claim 1 or 2, characterized in that: The device also includes a sliding guide device comprising a guide rod base plate (13), a guide rod mounting plate (14), and two or more guide rods (15). The top of the upper clamping plate (5) and the top of the upper clamping plate mounting base (10) are both fixed to the guide rod base plate (13); the lower end of the guide rod (15) is fixed to the mounting base plate (1) through the guide rod base plate (13), and the upper end of the guide rod (15) passes through the guide rod mounting plate (14) and is limited by the linear bearing (16) installed on the gas-liquid booster cylinder mounting plate (3) to ensure verticality.

4. The pressurized pipe coupling ring clamping and pressing device according to claim 1, characterized in that: The device also includes a safety cover (17) located around the clamping mold. The safety cover (17) has a U-shaped structure with openings on the front, top and bottom. The top of the safety cover (17) is fixed to the bottom of the upper clamping plate mounting seat (10). During operation, it moves with the upper clamping plate mounting seat (10). When the upper clamping plate mounting seat (10) and the lower clamping plate mounting seat (9) are in close contact, the bottom of the safety cover (17) covers the top of the upper clamping plate mounting seat (10).

5. The pressurized pipe fitting clamping device according to claim 2, characterized in that: The cross-sections of the upper clamping plate (5) and the lower clamping plate (6) are T-shaped.

6. The pressurized pipe coupling ring clamping and pressing device according to claim 1, characterized in that: The device includes a gas-liquid booster cylinder connecting flange (18), the top of which is fixed to the piston rod of the gas-liquid booster cylinder (4), and the bottom of which is fixed to the guide rod mounting plate (14).

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