A pressurizing device for rubber bushing production

Abstract

This utility model relates to the field of rubber bushing technology, specifically a pressurizing device for rubber bushing production. It includes a hydraulic rod with a mounting base, a vertical lifting rod fixedly connected to its output shaft end, a hanger fixedly connected to the bottom end of the lifting rod, a vertical pressure rod positioned below the hanger, and a self-locking mechanism between the pressure rod and the hanger; a movable ring movably sleeved on the outside of the lifting rod, a lifting mechanism positioned between the movable ring and the self-locking mechanism, and a pressing mechanism positioned at the upper end of the movable ring and the lifting rod. This utility model employs a quick-connect structure of a self-locking clamp and a trapezoidal block, replacing the traditional threaded fixing method. This avoids problems such as thread wear and fatigue fracture caused by repeated tightening / loosening, significantly improving the reliability and service life of the device. It also simplifies the disassembly and assembly process of the pressure rod, improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rubber bushing technology, specifically a pressure device for rubber bushing production. Background Technology

[0002] A bushing is a component installed outside mechanical parts in automotive parts to achieve functions such as sealing and wear protection. It refers to a ring that acts as a gasket. Traditional bushing production pressurization mechanisms have the problem of inconvenient mold mechanism replacement, making it difficult for the device to produce bushings of different specifications.

[0003] As disclosed in CN213471865U, a pressurizing mechanism for automotive rubber bushing production includes a body and an electric push rod. The electric push rod is fixedly installed inside one side of the body, and a retaining device is fixedly installed at the output end of the electric push rod. A pressurizing device is provided at the end of the retaining device away from the electric push rod. The retaining device includes a first threaded shaft, an annular groove, a limiting ring, a limiting groove, and a fixing tube. The first threaded shaft is fixedly installed at the output end of the electric push rod. The beneficial effects of this utility model are: it facilitates the replacement of the pressurizing device, solves the problem of inconvenient mold mechanism replacement in traditional bushing production pressurizing mechanisms, and improves the practicality of the device.

[0004] Although the aforementioned patent allows for the replacement of the pressurizing device, the use of a threaded structure for fixing leads to repeated tightening and loosening of the threads, which causes wear on the thread profile (especially the mating surface between the first thread shaft and the fixed tube), reducing the coefficient of friction and preload, potentially causing loosening or axial displacement. Furthermore, fatigue cracks are prone to form at the root of the thread, which may lead to breakage after long-term disassembly. Utility Model Content

[0005] The purpose of this invention is to provide a pressurizing device for rubber bushing production to solve the problems mentioned in the background art.

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

[0007] A pressurizing device for rubber bushing production, comprising:

[0008] A hydraulic rod with a mounting base has a vertical lifting rod fixedly connected to its output shaft end, a hanger fixedly connected to the bottom end of the lifting rod, a vertical pressure rod installed below the hanger, and a self-locking mechanism installed between the pressure rod and the hanger.

[0009] A movable ring is movably sleeved on the outside of the boom. A lifting mechanism is provided between the movable ring and the self-locking mechanism, and a pressing mechanism is provided at the upper end of the movable ring and the boom.

[0010] Preferably, the self-locking mechanism includes self-locking clips, which are respectively disposed inside the two sides of the hanger, and their top ends are rotatably connected to the upper end of the hanger via a pivot. A trapezoidal block is engaged between the two self-locking clips, and a vertical butt joint is fixedly connected to the bottom end of the trapezoidal block. The bottom end of the butt joint is fixedly connected to the top end of the pressure rod.

[0011] Preferably, a transverse baffle is fixedly connected to the top of each of the two self-locking clips on the opposite side;

[0012] Preferably, the lifting mechanism includes a crossbar, which is symmetrically and horizontally arranged on both sides of the movable ring. A fixing block is fixedly connected to the outer side of the bottom end of the self-locking head, and a connecting rod is movably installed between the fixing block and the crossbar through a rotating shaft.

[0013] Preferably, the clamping mechanism includes a pressure ring fixedly connected to the outer wall of the upper end of the boom, and a spring sleeved on the outside of the boom, with the two ends of the spring abutting against the pressure ring and the movable ring respectively;

[0014] Preferably, a transverse lifting rod is fixedly connected to the center of the front side of the movable ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This pressure device for rubber bushing production adopts a quick-connect structure of self-locking clamp and trapezoidal block, replacing the traditional threaded fixing method. This avoids problems such as thread wear and fatigue fracture caused by repeated tightening / loosening, significantly improving the reliability and service life of the device. At the same time, it simplifies the disassembly and assembly process of the pressure rod and improves maintenance efficiency.

[0017] This pressure-pressurizing device for rubber bushing production achieves pressure self-reinforcing locking through the cooperation of baffles, trapezoidal blocks, and self-locking heads. The greater the pressure during pressurization, the stronger the inward tightening force of the self-locking heads, forming a stable rigid connection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the self-locking clip installation of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Hydraulic rod; 2. Lifting rod; 3. Lifting frame; 4. Pressure rod; 5. Movable ring; 6. Self-locking chuck; 7. Trapezoidal block; 8. Connecting joint; 9. Lifting rod; 10. Baffle plate; 11. Crossbar; 12. Fixing block; 13. Connecting rod; 14. Pressure ring; 15. Spring. Detailed Implementation

[0023] 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.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A pressurizing device for rubber bushing production includes a hydraulic rod 1 with a mounting base. A vertical suspension rod 2 is fixedly connected to the output shaft end of the hydraulic rod 1. A hanger 3 is fixedly connected to the bottom end of the suspension rod 2. A vertical pressure rod 4 is positioned below the hanger 3. A self-locking mechanism is provided between the pressure rod 4 and the hanger 3. The self-locking mechanism includes self-locking clips 6, which are respectively located inside both sides of the hanger 3. Their top ends are rotatably connected to the upper end of the hanger 3 via a rotating shaft. The two self-locking clips 6 are locked together. A trapezoidal block 7 is attached, and a vertical connector 8 is fixedly connected to the bottom end of the trapezoidal block 7. The bottom end of the connector 8 is fixedly connected to the top end of the pressure rod 4. A horizontal baffle 10 is fixedly connected to the top ends of the two self-locking clips 6 facing each other. A pressing mechanism is provided at the upper end of the movable ring 5 and the lifting rod 2. The pressing mechanism includes a pressure ring 14 fixedly connected to the outer wall of the upper end of the lifting rod 2. A spring 15 is sleeved on the outside of the lifting rod 2. The two ends of the spring 15 abut against the pressure ring 14 and the movable ring 5 respectively.

[0026] In this embodiment, a quick-connect structure of self-locking clip 6 and trapezoidal block 7 is adopted to replace the traditional threaded fixing method, which avoids problems such as thread wear and fatigue fracture caused by repeated tightening / loosening, significantly improving the reliability and service life of the device. At the same time, it simplifies the disassembly and assembly process of pressure rod 4 and improves maintenance efficiency.

[0027] like Figure 2 and Figure 3 As shown, the movable ring 5 is movably sleeved on the outside of the lifting rod 2. A lifting mechanism is provided between the movable ring 5 and the self-locking mechanism. The lifting mechanism includes a crossbar 11, which is symmetrically and horizontally arranged on both sides of the movable ring 5. A fixing block 12 is fixedly connected to the outside of the bottom end of the self-locking head 6. A connecting rod 13 is movably installed between the fixing block 12 and the crossbar 11 through a rotating shaft. A horizontal lifting rod 9 is fixedly connected to the center of the front of the movable ring 5.

[0028] In this embodiment, the pressure self-enhancing locking is achieved through the cooperation of the baffle 10, the trapezoidal block 7 and the self-locking head 6. The greater the pressure when pressurized, the stronger the self-locking head 6 tightens inward, forming a stable rigid connection.

[0029] Working principle: When hydraulic rod 1 is started, its output shaft drives the lifting rod 2 to move downward. The lifting rod 2, through the hanger 3, drives the pressure rod 4 to pressurize the rubber bushing. At this time, the self-locking mechanism is in a locked state. Because the upper ends of the two self-locking clips 6 are equipped with baffles 10, the greater the pressure on the trapezoidal block 7, the greater the inward tightening force of the two self-locking clips 6. The pressure rod 4 is fixed by the two self-locking clips 6 through the engagement of the trapezoidal block 7 and the connector 8. Therefore, the greater the pressure during pressurization, the higher the stability. During installation, the connector 8 is... The top trapezoidal block 7 is inserted from below the hanger 3. When the hanger 3 is inserted, it opens the two self-locking clips 6 to the sides. When the self-locking clips 6 are opened, they push the movable ring 5 upward through the connecting rod 13 and compress the spring 15 until the trapezoidal block 7 is fully inserted. Then, the spring 15 controls the two self-locking clips 6 to reset and clamp the trapezoidal block 7. The lower ends of both sides of the trapezoidal block 7 are matched and engaged with the upper ends of the two self-locking clips 6. When disassembling and replacing, simply hold the lifting rod 9 to lift it, which will open the two self-locking clips 6 to the outside. Then, the pressure rod 4 can be quickly removed.

[0030] 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 pressurizing device for producing rubber bushings, characterized in that: include A hydraulic rod (1) with a mounting base is fixedly connected to a vertical rod (2) at the output shaft end. A hanger (3) is fixedly connected to the bottom end of the rod (2). A vertical pressure rod (4) is provided below the hanger (3). A self-locking mechanism is provided between the pressure rod (4) and the hanger (3). The movable ring (5) is movably sleeved on the outside of the boom (2). A lifting mechanism is provided between the movable ring (5) and the self-locking mechanism. A pressing mechanism is provided at the upper end of the movable ring (5) and the boom (2).

2. The pressurizing device for rubber bushing production according to claim 1, characterized in that: The self-locking mechanism includes a self-locking head (6), which is respectively located inside the two sides of the hanger (3), and its top end is rotatably connected to the upper end of the hanger (3) through a rotating shaft. A trapezoidal block (7) is engaged between the two self-locking heads (6), and a vertical butt joint (8) is fixedly connected to the bottom end of the trapezoidal block (7). The bottom end of the butt joint (8) is fixedly connected to the top end of the pressure rod (4).

3. The pressurizing device for rubber bushing production according to claim 2, characterized in that: The top ends of the two self-locking clips (6) are fixedly connected to a transverse baffle (10) on the opposite side.

4. The pressurizing device for rubber bushing production according to claim 3, characterized in that: The lifting mechanism includes a crossbar (11), which is symmetrically and horizontally arranged on both sides of the movable ring (5). A fixing block (12) is fixedly connected to the outer side of the bottom end of the self-locking head (6). A connecting rod (13) is movably installed between the fixing block (12) and the crossbar (11) through a rotating shaft.

5. The pressurizing device for rubber bushing production according to claim 1, characterized in that: The clamping mechanism includes a pressure ring (14) fixedly connected to the outer wall of the upper end of the rod (2), and a spring (15) sleeved on the outside of the rod (2), with the two ends of the spring (15) abutting against the pressure ring (14) and the movable ring (5) respectively.

6. The pressurizing device for rubber bushing production according to claim 1, characterized in that: A horizontal lifting rod (9) is fixedly connected to the center of the front side of the movable ring (5).

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