Portable knuckle needle bearing press-fitting device

Abstract

The utility model discloses a portable press-fitting device for a needle bearing of a steering knuckle. The device comprises an air pressure device which is connected with an air cylinder, and an air pipe I is arranged between the air pressure device and the air cylinder; the inner wall of the cylinder is connected with a piston and is divided into a cylinder front cavity and a cylinder rear cavity by the piston; in the cylinder rear cavity, the piston is fixed on the inner wall of the cylinder through a spring; comprising a workbench and a connecting rod penetrating through a steering knuckle hole in a steering knuckle, a limiting groove used for limiting a needle bearing is formed in the front end of the connecting rod, and a limiting plate matched with the limiting groove is arranged in the limiting groove; the rear end of the connecting rod extends into the front cavity of the cylinder and is connected with the piston; the piston slides to drive the connecting rod to move; one end of the first air pipe is connected with the pneumatic device, and the other end is connected with the cylinder front cavity. The knuckle needle bearing press-fitting device is small in size, convenient and fast in press-fitting and suitable for press-fitting of knuckle needle bearings of various specifications, the press-fitting efficiency is effectively improved, and therefore the problems existing in an existing traditional knuckle needle bearing press-fitting device are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing pressing devices, in particular to a pressing device for a steering knuckle needle bearing. Background Art

[0002] In the process of pressing the needle bearing of the existing automobile steering knuckle, traditional devices often have many limitations, which not only affect the production efficiency, but also increase the operation difficulty and cost. Specifically, traditional pressing devices usually rely on manual alignment of the steering knuckle by workers. After placing the needle bearing and the pressing head in the predetermined positions, the press is then started for pressing. This method has the following obvious problems:

[0003] Large labor intensity and low efficiency: As Figure 1 shown, before each pressing, the operator needs to first manually align and stably place the heavy steering knuckle 1 on the cushion block 5, then place the needle bearing 4 and the pressing head 3 on the needle bearing 4, start the press 2, and use the press 2 to press the needle bearing 4 in place. This process is time-consuming and laborious, and requires high attention and accuracy, resulting in low work efficiency. With the acceleration of the production rhythm, this manual-dependent method has gradually become a bottleneck restricting the production efficiency.

[0004] High operation risk: During the pressing process, the operator needs to hold the tooling with one hand and the steering knuckle with the other hand while starting the press. This two-handed operation method not only increases the operation difficulty, but also raises the risk of hand injury, especially in a high-pressure and high-speed pressing environment.

[0005] Poor adaptability: With the rapid development of the automotive industry, the specifications and models of steering knuckle needle bearings are becoming increasingly diverse. Traditional pressing devices often lack sufficient flexibility and are difficult to meet the pressing requirements of different specifications of bearings. This results in the need to frequently replace tooling or adjust equipment parameters on the production line, increasing the production preparation time and cost.

[0006] Insufficient portability: Traditional pressing devices are large in volume and heavy in weight, making it inconvenient to quickly deploy and move them in different production environments or workbenches. This limits the flexibility and scalability of the production line.

[0007] In view of the above problems, it is particularly important to develop a new type of pressing device for steering knuckle needle bearings. Summary of the Invention

[0008] The utility model provides a portable pressing device for a steering knuckle needle bearing. The pressing device is small in volume, convenient for pressing, and applicable to the pressing of various specifications of steering knuckle needle bearings, effectively improving the pressing efficiency and thus solving the problems existing in the traditional pressing device for steering knuckle needle bearings.

[0009] To solve the above problems, the technical solution adopted by the present utility model is as follows:

[0010] It includes a pneumatic device, the pneumatic device is connected with a cylinder, and there is a first air pipe between the pneumatic device and the cylinder; a piston is slidably connected to the inner wall of the cylinder, and the inner wall of the cylinder is divided into a front cylinder chamber and a rear cylinder chamber by the piston; in the rear cylinder chamber, the piston is fixed on the inner wall of the cylinder by a spring;

[0011] It includes a workbench for placing a steering knuckle, and a connecting rod passing through a steering knuckle hole on the steering knuckle. A limiting groove for defining a needle roller bearing is provided at the front end of the connecting rod, and a limiting plate matching with it is provided in the limiting groove; the rear end of the connecting rod extends into the front cylinder chamber and is connected with the piston, and the sliding of the piston drives the connecting rod to move;

[0012] One end of the first air pipe is connected with the pneumatic device, and the other end of the first air pipe is connected with the front cylinder chamber.

[0013] In the above technical solution, a more specific technical solution may further be: multiple limiting grooves with different specifications and multiple limiting plates respectively matching with them are provided at the front end of the connecting rod.

[0014] Furthermore, it further includes a second air pipe, the second air pipe is connected with the pneumatic device, and the other end of the second air pipe is connected with the rear cylinder chamber.

[0015] Furthermore, it further includes a handle installed on the cylinder.

[0016] Furthermore, a first gas interface is installed in the front cylinder chamber, and the first air pipe is inserted into the first gas interface.

[0017] Furthermore, a second gas interface is installed in the rear cylinder chamber, and the second air pipe is inserted into the second gas interface.

[0018] Due to adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art:

[0019] 1. The present utility model has a high degree of automation, automatically completes the pressing of the needle roller bearing by using the pneumatic device, reduces manual operation, and improves the operation efficiency and safety.

[0020] 2. The present utility model realizes the automatic reset of the connecting rod through the built-in spring, simplifies the operation process, and improves the work efficiency.

[0021] 3. By designing limiting grooves and limiting plates with different specifications, the device of the present utility model can adapt to needle roller bearings of various specifications of steering knuckles, enhancing the versatility and flexibility of the equipment.

[0022] 4. The utility model is easy to operate. For the whole press-fitting process, only the pneumatic device needs to be started and the parts need to be placed, which requires low skills for the operators and reduces the training cost. Description of the Drawings

[0023] Figure 1 It is a structural schematic diagram of an existing press-fitting device for the needle roller bearing of an automotive steering knuckle.

[0024] Figure 2 It is a structural schematic diagram of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the connecting rod of the utility model.

[0026] Figure 4 It is the front view of the limit plate of the utility model.

[0027] Figure 5 It is the left view of the limit plate of the utility model.

[0028] Figure 1 In [the figure], reference numeral 1 represents the steering knuckle, 2 represents the press, 3 represents the press-fitting head, 4 represents the needle roller bearing, and 5 represents the spacer block.

[0029] Figures 2 - 5 In [the figure], reference numeral 1 represents the steering knuckle, 4 represents the needle roller bearing, 6 represents the pneumatic device, 7 represents the cylinder, 8 represents the piston, 9 represents the front chamber of the cylinder, 10 represents the rear chamber of the cylinder, 11 represents the spring, 12 represents the connecting rod, 13 represents the first air pipe, 14 represents the second air pipe, 15 represents the second gas interface, 16 represents the first gas interface, 17 represents the workbench, 18 represents the limit groove, 19 represents the limit plate, 20 represents the handle, and 21 represents the steering knuckle hole. Detailed Embodiment

[0030] The following further details the utility model in conjunction with the drawings:

[0031] As Figures 2 - 5 shown, a portable press-fitting device for the needle roller bearing of a steering knuckle includes a pneumatic device 6. The pneumatic device 6 serves as a power source to generate and store compressed air at a certain pressure. The pneumatic device 6 is connected to a cylinder 7, and a first air pipe 13 is provided between the pneumatic device 6 and the cylinder 7. The first air pipe 13 is used to convey the gas generated by the pneumatic device 6 to a specified position. A piston 8 is slidably connected to the inner wall of the cylinder 7, and the inner wall of the cylinder 7 is divided into a front chamber 9 and a rear chamber 10 of the cylinder by the piston 8. In the rear chamber 10 of the cylinder, the piston 8 is fixed to the inner wall of the cylinder 7 by a spring 11. When the pneumatic device 6 stops working, the elastic force of the spring 11 pushes the connecting rod 12 to reset, preparing for the next press-fitting. This reset mechanism improves the automation degree and operation efficiency of the device;

[0032] It includes a workbench 17 for placing the steering knuckle 1, and a connecting rod 12 passing through the steering knuckle hole 21 on the steering knuckle 1. A limit groove 18 for defining the needle roller bearing 4 is provided at the front end of the connecting rod 12, and a matching limit plate 19 is provided in the limit groove 18. The design of the limit groove 18 and the limit plate 19 enables the needle roller bearing 4 to be accurately aligned and pressed into the steering knuckle hole 21; the rear end of the connecting rod 12 extends into the front cavity 9 of the cylinder and is connected to the piston 8, and the sliding of the piston 8 drives the connecting rod 12 to move.

[0033] With such a setting, when the pneumatic device 6 is started, the generated gas pressure is transmitted to the connecting rod 12 through the first air pipe, pushing the connecting rod 12 to move in a direction away from the steering knuckle hole 21. As the connecting rod 12 moves, the needle roller bearing 4 is gradually pressed into the steering knuckle hole 21 until it reaches the preset position.

[0034] One end of the first air pipe 13 is connected to the pneumatic device 6, and the other end of the first air pipe 13 is connected to the front cavity 9 of the cylinder.

[0035] The front end of the connecting rod 12 is provided with a plurality of limit grooves 18 of different specifications and a plurality of limit plates 19 respectively matching them. That is, by designing different specifications of limit grooves 18 on the connecting rod 12 and equipping different types of limit plates 19, it can meet the pressing requirements of the needle roller bearings 4 of various specifications of the steering knuckle 1. This design enhances the versatility and flexibility of the device.

[0036] It further includes a second air pipe 14. The second air pipe 14 is connected to the pneumatic device 6, and the other end of the second air pipe 14 is connected to the rear cavity 10 of the cylinder.

[0037] It further includes a handle 20 installed on the cylinder 7. With such a setting, it is convenient to move and carry the entire device.

[0038] The front cavity 9 of the cylinder is equipped with a first gas interface 16, and the first air pipe 13 is inserted into the first gas interface 16.

[0039] The rear cavity 10 of the cylinder is equipped with a second gas interface 15, and the second air pipe 14 is inserted into the second gas interface 15.

[0040] The working process of the utility model is as follows:

[0041] (1) Preparation stage: Place the steering knuckle 1 on the workbench 17, then insert the connecting rod 12 into the appropriate position in the steering knuckle hole 21, and place the needle roller bearing 4 and the corresponding specification limit plate 19.

[0042] (2) Pressing stage: Start the pneumatic device 6, the gas enters the front cavity 9 of the cylinder through the first air pipe 13, pushing the connecting rod 12, the needle roller bearing 4 and the limit plate 19 to move to the left; under the action of the gas pressure, the needle roller bearing 4 is pressed into the steering knuckle hole 21 until it is in place.

[0043] (3) Reset stage: After the press-fitting is completed, the pneumatic device 6 is closed, and the connecting rod 12 moves to the right to reset under the push of the spring 11; at this time, the press-fitting of the next needle roller bearing 4 can be prepared.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable knuckle needle roller bearing press-fitting device, characterized in that: It comprises a pneumatic device, the pneumatic device is connected to a cylinder, an air pipe is arranged between the pneumatic device and the cylinder; a piston is slidably connected to the inner wall of the cylinder, and the inner wall of the cylinder is divided into a cylinder front cavity and a cylinder rear cavity by the piston; in the cylinder rear cavity, the piston is fixed to the inner wall of the cylinder by a spring; It comprises a workbench for placing a steering knuckle, and a connecting rod passing through a steering knuckle hole on the steering knuckle, wherein a limiting groove for limiting a needle bearing is provided at the front end of the connecting rod, and a limiting plate matching the limiting groove is provided in the limiting groove; the rear end of the connecting rod extends into the front cavity of the cylinder and is connected to the piston, and the sliding of the piston drives the connecting rod to move; One end of the air pipe 1 is connected to the air pressure device, and the other end of the air pipe 1 is connected to the front chamber of the cylinder.

2. The portable knuckle needle roller bearing press-fitting device according to claim 1 is characterized in that: The front end of the connecting rod is provided with a plurality of limiting grooves of different specifications and a plurality of limiting plates respectively matched with the limiting grooves.

3. The portable knuckle needle roller bearing press-fitting device according to claim 1 or 2, characterized in that: It also includes a second air pipe, which is connected to the air pressure device, and the other end of the second air pipe is connected to the rear cavity of the cylinder.

4. The portable knuckle needle roller bearing press-fitting device according to claim 3 is characterized in that: Also included is a handle mounted on the cylinder.

5. The portable knuckle needle roller bearing press-fitting device according to claim 4 is characterized in that: The cylinder front chamber is provided with a gas interface 1, and the gas pipe 1 is inserted into the gas interface 1.

6. The portable knuckle needle roller bearing press-fitting device according to claim 5 is characterized in that: The cylinder rear cavity is provided with a second gas interface, and the second gas pipe is inserted into the second gas interface.

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