Special pressure head of full-automatic valve oil seal pressing machine

Abstract

The utility model discloses a special pressure head of a full-automatic valve oil seal pressing machine, which comprises a mounting plate, positioning sleeves for positioning the mounting plate are arranged at two ends of the mounting plate, and the positioning sleeves are assembled with positioning shafts; one or more groups of pressure head components for pressing the oil seal are mounted on the mounting plate; the pressing head assembly comprises a guide sleeve arranged on the mounting plate, a pressing rod is arranged in the guide sleeve in a sliding mode, and the pressing rod is connected with a pressing cylinder and is driven by the pressing cylinder to press the oil seal; an oil seal pickup plunger assembled with the oil seal is arranged at the lower end of the pressing rod; a displacement sensor for detecting the moving distance of the pressing rod is further arranged on the mounting plate; the pressing rod controlled by the pressing cylinder is arranged to apply uniform pressure to the oil seal, the situation that the oil seal is not firmly pressed due to improper manual operation is avoided, the oil seal is not comprehensively fixed, adjustment can be conducted through the lip-shaped sealing piece on the oil seal when the oil seal is not concentric, and abrasion of the oil seal is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seal press-fitting equipment, in particular to a special pressing head of a full-automatic valve oil seal press-fitting machine. Background Art

[0002] Oil seal is a common name for general seals. It is a mechanical component used to seal grease. It isolates the parts that need lubrication from the output parts in the transmission components to prevent the leakage of lubricating oil. During the press-fitting process of the oil seal, the oil seal soaked in engine oil is usually placed directly at the installation position by hand, and then the oil seal is press-fitted by manual knocking. However, during this process, the oil seal is easily damaged due to uneven control of force, resulting in an unstable installation.

[0003] Chinese patent 201721774763.7 discloses an oil seal pressure head and an oil seal press, the oil seal pressure head includes a pressure head body and a detection unit, the first end of the pressure head body is provided with a cylindrical accommodating cavity for inserting the oil seal, and the second end of the pressure head body is used to connect with the press; the pressure head body is provided with the detection unit, and the detection end of the detection unit is located in the accommodating cavity. The utility model adopts a coreless design, which can eliminate the risk of the valve oil seal lip being scratched and the oil seal spring being squeezed off, and avoid the cylinder head being damaged by the core rod; the detection element is used to detect whether the oil seal spring is missing and whether the oil seal is correctly pre-installed on the pressure head, eliminating the risk of missing the oil seal spring, but because the lip seal on one side of the oil seal is easy to wear during the press-fitting process, the inner and outer side walls of the oil seal are fixed during installation, resulting in the lip seal always experiencing wear at the same position, causing serious damage to the oil seal. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a special pressure head for a fully automatic valve oil seal press machine, which can accurately install the oil seal and adapt to the situation of eccentricity during the installation process to avoid damage to the oil seal.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0006] A special pressing head for a fully automatic valve oil seal press machine comprises a mounting plate, both ends of which are provided with positioning sleeves for positioning the mounting plate, the positioning sleeves being matched with a positioning shaft; one or more pressing head assemblies for press-fitting the oil seal are mounted on the mounting plate; the pressing head assembly comprises a guide sleeve arranged on the mounting plate, a pressing rod is slidably arranged in the guide sleeve, the pressing rod is connected to a pressing cylinder and is driven by the pressing cylinder to press-fit the oil seal; an oil seal picking plunger matched with the oil seal is arranged at the lower end of the pressing rod; a displacement sensor for detecting the moving distance of the pressing rod is also arranged on the mounting plate.

[0007] The special pressing head of the above-mentioned fully automatic valve oil seal pressing machine has a spring arranged in the middle of the outer wall of the pressing rod, one end of the spring is connected to the bottom of the guide sleeve, and the other end of the spring is connected to the middle of the pressing rod.

[0008] The special pressure head of the above-mentioned fully automatic valve oil seal press machine, the oil seal is installed between the inner wall of the lower end of the pressure rod and the oil seal picking plunger, a conduit is set inside the oil seal; a sealing ring is installed between the outer wall of the conduit and the inner wall of the oil seal.

[0009] The above-mentioned special pressing head of the fully automatic valve oil seal pressing machine has a limit block arranged at the upper end of the pressing rod and a notch matched with the limit block arranged at the lower part of the guide sleeve.

[0010] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0011] The utility model provides a special pressure head for a full-automatic valve oil seal press machine, which applies uniform pressure to the oil seal by setting a pressure rod controlled by a pressure cylinder, thereby avoiding loose press installation of the oil seal due to improper manual operation, and can accurately install the oil seal by setting a displacement sensor, thereby reducing damage to the oil seal. In addition, the utility model does not fully fix the oil seal, and can adjust the lip seal on the oil seal when eccentricity occurs, thereby avoiding wear of the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the specific structure of the utility model using multiple groups of pressure heads;

[0013] Figure 2 This is a schematic diagram of the specific structure of the utility model using a single group of pressure heads;

[0014] Figure 3 It is a cross-sectional view of the pressure head part of the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the specific structure of the oil seal installation location.

[0016] Among them: 1. Mounting plate, 2. Pressure rod, 3. Spring, 4. Guide sleeve, 5. Positioning sleeve, 6. Displacement sensor, 7. Oil seal pick-up plunger, 8. Limit block, 9. Oil seal, 10. Conduit, 11. Rubber ring. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] A special pressure head for a fully automatic valve oil seal press machine, such as Figures 1 to 4As shown, it includes a mounting plate 1, and positioning sleeves 5 are arranged at both ends of the mounting plate 1 to position the mounting plate 1. A positioning shaft is installed in the positioning sleeve. Multiple groups of pressure head assemblies are installed on the mounting plate 1, and multiple oil seals 9 can be installed at the same time.

[0019] The pressure head assembly includes a guide sleeve 4 arranged on a mounting plate 1, and a pressure rod 2 is sleeved inside the guide sleeve 4. Figure 3 As shown, the pressure rod 2 is connected to the pressure cylinder and driven by the pressure cylinder to press the oil seal 9, and the lower end of the pressure rod 2 is installed with an oil seal picking plunger 7.

[0020] A limit block 8 is arranged at the upper end of the pressure rod 2 , and a notch matched with the limit block 8 is arranged at the lower part of the guide sleeve 4 .

[0021] A spring 3 is provided in the middle of the outer wall of the pressure rod 2 , one end of the spring 3 is connected to the bottom of the guide sleeve 4 , and the other end is connected to the middle of the pressure rod 2 .

[0022] An oil seal 9 is provided between the inner wall of the lower end of the pressure rod 2 and the oil seal pick-up plunger 7. Figure 4 As shown, a conduit 10 is sleeved inside the oil seal 9 , and a sealing ring 11 is installed between the outer wall of the conduit 10 and the inner wall of the oil seal 9 .

[0023] A displacement sensor 6 is also provided on the mounting plate 1, which can detect the moving distance of the pressure rod 2 and the installation position of the oil seal 9, so as to ensure that the oil seal 9 can be installed accurately.

[0024] In the present invention, the mounting plate 1 can also be provided with only one pressure head assembly, such as Figure 2 As shown, the pressure head assembly is arranged at the center position of the mounting plate 1.

[0025] When in use, the conduit 10 is sleeved inside the oil seal 9, and then the oil seal 9 is installed on the oil seal picking plunger 7, and then the pressure rod 2 is pressed downward to press the oil seal 9, and the movement distance of the pressure rod 2 is detected by the displacement sensor 6 to ensure that the oil seal position is accurately installed.

[0026] During the installation process, if the oil seal 9 is installed eccentrically, the oil seal 9 and the conduit 10 are fixed by the extrusion force generated by the rubber ring 11 that compresses the metal inner ring of the oil seal, but the metal outer cylindrical surface of the oil seal is not limited. Therefore, the lip seal on the oil seal 9 can be deformed to adapt to the eccentricity of the oil seal without causing damage to the oil seal.

[0027] The utility model provides a special pressure head for a full-automatic valve oil seal press machine, which applies uniform pressure to the oil seal by setting a pressure rod controlled by a pressure cylinder, thereby avoiding loose press installation of the oil seal due to improper manual operation, and can accurately install the oil seal by setting a displacement sensor, thereby reducing damage to the oil seal. In addition, the utility model does not fully fix the oil seal, and can adjust the lip seal on the oil seal when eccentricity occurs, thereby avoiding wear of the oil seal.

Claims

1. A special pressure head for a fully automatic valve oil seal press machine. Features: The invention comprises a mounting plate (1), wherein both ends of the mounting plate (1) are provided with positioning sleeves (5) for positioning the mounting plate (1), and the positioning sleeves (5) are matched with the positioning shaft; one or more groups of pressure head assemblies for pressing an oil seal (9) are installed on the mounting plate (1); the pressure head assembly comprises a guide sleeve (4) arranged on the mounting plate (1), a pressure rod (2) is slidably arranged in the guide sleeve (4), the pressure rod (2) is connected to a pressure cylinder and is driven by the pressure cylinder to press the oil seal (9); an oil seal picking plunger (7) matched with the oil seal (9) is arranged at the lower end of the pressure rod (2); and a displacement sensor (6) for detecting the moving distance of the pressure rod (2) is also arranged on the mounting plate (1).

2. A special pressing head for a fully automatic valve oil seal pressing machine according to claim 1, Features: A spring (3) is arranged in the middle of the outer wall of the pressure rod (2), one end of the spring (3) is connected to the bottom of the guide sleeve (4), and the other end of the spring (3) is connected to the middle of the pressure rod (2).

3. The special pressing head of the fully automatic valve oil seal pressing machine according to claim 1, Features: The oil seal (9) is installed between the inner wall of the lower end of the pressure rod (2) and the oil seal picking plunger (7), and a guide tube (10) is installed inside the oil seal (9); a sealing ring (11) is installed between the outer wall of the guide tube (10) and the inner wall of the oil seal (9).

4. The special pressing head of the fully automatic valve oil seal pressing machine according to claim 1, Features: A limit block (8) is arranged at the upper end of the pressure rod (2), and a notch matched with the limit block (8) is arranged at the lower part of the guide sleeve (4).

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