Oil seal pressure head structure capable of automatically switching press-fitting depth

Abstract

The utility model relates to an oil seal pressure head structure capable of automatically switching press-fitting depth. The oil seal pressure head structure comprises a mounting plate, an air cylinder, a sliding block, a guide rail, a sliding plate and an oil seal pressure head, the sliding plate is in sliding connection with the guide rail on the mounting plate in the vertical direction through the sliding block; the oil seal pressing head is fixedly connected to the lower portion of the sliding plate. Meanwhile, a limiting sleeve is arranged on the outer side of the oil seal pressure head and is in sliding fit with a hole shaft; a cushion block is arranged between the limiting sleeve and the sliding plate and connected with the air cylinder. The lower end face of the cushion block is a step face and is provided with a front horizontal plane and a rear horizontal plane which are different in height, so that the end, protruding relative to the limiting sleeve, of the oil seal pressing head has two depths, and automatic switching of the press-fitting depths is achieved. According to the structure, the cushion block with the step face is driven by the air cylinder to move back and forth, the oil seal press-fitting depth switching is achieved, the press-fitting requirements of two oil seals with different press-fitting depths are met, meanwhile, the press-fitting depth is automatically switched, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of oil seal press-fitting equipment, in particular to an oil seal press head structure capable of automatically switching the press-fitting depth. Background Art

[0002] Oil seals are an important part of gearboxes or electric drives (such as Figure 1 As shown in the figure, its sealing is very important for the product. Figure 2 As shown in the figure, when the oil seal is press-fitted, the pressure head generally adopts the following structure (detection probe, probe reset spring, in-situ detection sensor and press connection seat). The oil seal pressure head is directly connected to the press-fitting actuator (electric cylinder, air cylinder), and the oil seal pressure head step surface is contacted with the shell to limit the position, thereby controlling the oil seal press-fitting depth.

[0003] The above-mentioned general oil seal pressure head can solve the general oil seal direct press-fit problem. However, there will be a need for compatible production during the production process, that is, to meet the production of two different depths of oil seal press-fit. Due to the difference in shell products, some products need to install a transition shaft, and the pressure head on the upper hole set on the shell cannot pass through, so there is a need to extend the pressure head into the shell for press-fit ( Figure 3 ). At this time, for the automatic press-fitting equipment, in order to avoid the reduction of production efficiency caused by replacing the press head, a press head that can automatically switch the press-fitting depth and realize internal press-fitting of oil seals in a small space is required. Utility Model Content

[0004] The utility model aims to provide an oil seal pressure head structure with automatic switching of press-fitting depth, which meets the requirements of an oil seal pressure head compatible with two press-fitting depths and an oil seal pressure head that can be press-fitted in a small space inside a shell.

[0005] To this end, the utility model proposes an oil seal pressure head structure with automatic switching of pressing depth, comprising: a mounting plate, a cylinder, a slider, a guide rail, a slide plate and an oil seal pressure head; the slide plate and the guide rail on the mounting plate are slidably connected in the vertical direction through the slider; and the oil seal pressure head is fixedly connected under the slide plate; at the same time, a limit sleeve is provided on the outside of the oil seal pressure head, and the hole shafts of the two are slidably matched; a cushion block is provided between the limit sleeve and the slide plate, and the cushion block is connected to the cylinder; wherein, the lower end surface of the cushion block is a step surface, having two horizontal surfaces of different heights at front and rear, so that the protruding end of the oil seal pressure head relative to the limit sleeve has two depths, thereby realizing automatic switching of the pressing depth.

[0006] As a preferred technical solution of the present application, the slide plate is L-shaped and has two parts: a side plate and a top plate; the side plate is connected to the slide block, and the oil seal pressure head is located below the top plate and is connected by bolts.

[0007] As a preferred technical solution of the present application, a press is connected above the top plate via a press connecting rod, which is used to drive the oil seal pressing head to press the oil seal.

[0008] As a preferred technical solution of the present application, the slide plate is fixedly connected to the sliding block by bolts.

[0009] As a preferred technical solution of the present application, the guide rail is fixedly connected to the mounting plate by bolts.

[0010] As a preferred technical solution of the present application, the cylinder is horizontally fixed on the mounting plate.

[0011] As a preferred technical solution of the present application, the cushion block is connected to the cylinder via a cylinder joint.

[0012] As a preferred technical solution of the present application, an in-situ detection sensor is provided on the side wall of the oil seal pressure head, and the in-situ detection sensor has a detection probe extending in the vertical direction.

[0013] As a preferred technical solution of the present application, a probe return spring is installed at the upper end of the detection probe.

[0014] As a preferred technical solution of the present application, a pressure head return spring is also provided at the center of the bottom of the oil seal pressure head.

[0015] The oil seal pressure head structure with automatic switching of press-fitting depth provided by the utility model drives the gasket with a stepped surface to move back and forth through the cylinder to realize the switching of the oil seal press-fitting depth, is compatible with the press-fitting requirements of two oil seals with different press-fitting depths, and automatically switches the press-fitting depth at the same time, thereby improving production efficiency. The oil seal pressure head realizes the up and down movement of the pressure head during press-fitting through the guide rail slider and the reset spring, and realizes the spatial movement and press-fitting of the oil seal pressure head through the connection between the mounting plate and the transfer mechanism. The utility model has a simple structure and can be extended to general oil seal press-fitting, and has universal applicability.

[0016] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the assembly structure of the oil seal in the product in the prior art;

[0019] Figure 2It is a structural schematic diagram of an oil seal pressure head in the prior art;

[0020] Figure 3 It is a schematic diagram of an oil seal structure in the prior art in which the oil seal pressure head cannot pass through the upper hole from above;

[0021] Figure 4 It is a front view of the oil seal pressure head structure with automatic switching of the press-fitting depth of the utility model;

[0022] Figure 5 It is a cross-sectional view of the oil seal pressure head structure for automatically switching the press-fitting depth of the utility model;

[0023] Figure 6 It is a schematic diagram of the press-fitting process of the oil seal pressure head structure with automatic switching of the press-fitting depth of the utility model;

[0024] Description of Reference Numerals

[0025] 1. Mounting plate; 2. Cylinder; 3. Slider; 4. Guide rail; 5. Slide plate; 6. Pad; 7. Limit sleeve; 8. Oil seal pressure head; 9. In-position detection sensor; 10. Probe reset spring; 11. Detection probe; 12. Pressure head reset spring; 50. Housing; 51. Upper hole; 60. Oil seal. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figures 4 to 6 As shown, the oil seal pressure head structure with automatic switching of the pressing depth of the utility model comprises: a mounting plate 1, a cylinder 2, a slider 3, a guide rail 4, a slide plate 5, a cushion block 6, a limiting sleeve 7 and an oil seal pressure head 8.

[0028] Specifically, the guide rail 4 is fixedly connected to the mounting plate 1 by bolts, and the slider 3 is slidably installed on the guide rail 4 and slides up and down in the vertical direction. The slide plate 5 is fixedly connected to the slider 3 by bolts; the slide plate 5 is L-shaped, and has two parts, a side plate and a top plate. The side plate of the slide plate 5 is connected to the slider 3, and the oil seal pressure head 8 is located below the top plate of the slide plate 5 and is connected by bolts. The slide plate 5 is pressed by the press connecting rod of the upper press, and the oil seal pressure head 8 is driven to slide up and down in the vertical direction to realize the press-fitting function of the oil seal 60 inside the housing.

[0029] Among them, the limit sleeve 7 is located on the outside of the oil seal pressure head 8 and the hole shafts of the two are slidably matched. The cushion block 6 is located above the limit sleeve 7 and below the top plate of the slide plate 5. At the same time, the cushion block 6 is connected to the cylinder 2 through the cylinder joint, and the cylinder 2 is horizontally connected and arranged on the mounting plate 1. The cylinder 2 drives the cushion block 6 to extend to the top of the limit sleeve 7, or to retreat horizontally to one side of the limit sleeve 7.

[0030] In addition, the lower end surface of the cushion block 6 is a stepped surface with two horizontal surfaces of different heights at the front and rear, so that the lower part of the oil seal pressure head 8 relative to the exposed end of the limit sleeve 7 has two depths, achieving the purpose of automatically switching the press-fitting depth.

[0031] like Figure 5 As shown, an in-situ detection sensor 9 is provided on the side wall of the oil seal pressure head 8. The in-situ detection sensor 9 has a detection probe 11 extending in the vertical direction. The detection probe 11 is used to detect whether the lower end of the oil seal pressure head 8 is pre-assembled with a sealing ring; when a sealing ring is loaded on the lower end of the oil seal pressure head 8, the detection probe 11 will move upward, and the in-situ detection sensor 9 will detect the upward movement of the probe, which means that there is a sealing ring on the oil seal pressure head 8 at this time, and the pressing procedure can be performed.

[0032] Among them, a probe reset spring 10 is installed at the upper end of the detection probe 11. When the sealing ring is not installed at the lower end of the oil seal pressure head 8, the detection probe 11 is in an extended state. The pressing control module connected to the detection probe 11 determines that the pressing preparation work of the oil seal pressure head 8 is not completed (at this time, the in-position sensor 9 does not receive any signal), and prompts the staff or the feeding mechanism to install the sealing ring at the lower end of the oil seal pressure head 8.

[0033] In addition, a pressure head reset spring 12 is provided at the center position of the bottom of the oil seal pressure head 8, and the outer diameter of the pressure head reset spring 12 is smaller than the inner diameter of the oil seal 60; when the oil seal pressure head 8 moves downward to support the oil seal 60 and press it into place, the pressure head reset spring 12 supports the lower end surface of the oil seal mounting hole on the shell 50; when the press above the oil seal pressure head 8 retreats, the oil seal pressure head 8 retreats a certain distance under the action of the pressure head reset spring 12 and falls off from the oil seal 60; the convenient transplanting mechanism drives the oil seal pressure head 8 to withdraw from the side of the shell.

[0034] The working principle and working process of the oil seal pressure head structure with automatic switching of the press-fitting depth of the utility model are briefly described below.

[0035] like Figure 6 As shown, when in use, the oil seal pressure head 8 can be extended and retracted forward and backward by the cylinder 2 to switch the front and rear height of the cushion block 6. The limit sleeve 7 is used to limit the depth of the oil seal press. At the same time, the entire pressure head structure can be connected to the transplanting mechanism through the mounting plate 1 to achieve spatial movement and extend into the shell 50 from the side. The diameter of the press connecting rod is smaller than the inner diameter of the upper hole 51 on the shell, and can pass through the upper hole 51 and then be press-fitted to the slide plate 5 to achieve the oil seal press-fitting function inside the shell.

[0036] The oil seal pressure head structure of the utility model that automatically switches the press-fitting depth realizes the switching of the oil seal press-fitting depth, is compatible with the press-fitting requirements of two oil seals with different press-fitting depths, and automatically switches the press-fitting depth, thereby improving production efficiency. The oil seal pressure head realizes the up and down movement of the pressure head during press-fitting through the guide rail slider and the reset spring, and realizes the spatial movement and press-fitting of the oil seal pressure head through the connection between the mounting plate and the transfer mechanism. The utility model can be extended to general oil seal press-fitting and has universal applicability.

[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An oil seal pressure head structure with automatic switching of press-fitting depth, characterized in that: include: A mounting plate (1), a cylinder (2), a slider (3), a guide rail (4), a slide plate (5) and an oil seal pressure head (8); The slide plate (5) and the guide rail (4) on the mounting plate (1) are connected in a vertical sliding direction via the slide block (3); the oil seal pressure head (8) is fixedly connected below the slide plate (5); a limit sleeve (7) is provided on the outside of the oil seal pressure head (8), and the holes and shafts of the two are slidably matched; a cushion block (6) is provided between the limit sleeve (7) and the slide plate (5), and the cushion block (6) is connected to the cylinder (2); The lower end surface of the cushion block (6) is a stepped surface having two horizontal surfaces at different heights at the front and rear, so that the end of the oil seal pressure head (8) protruding relative to the limit sleeve (7) has two depths, thereby realizing automatic switching of the press-fitting depth.

2. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 1 is characterized in that: The slide plate (5) is L-shaped and comprises a side plate and a top plate; the side plate is connected to the slide block (3), and the oil seal pressure head (8) is located below the top plate and is connected via bolts.

3. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 2 is characterized in that: A press is connected above the top plate via a press connecting rod and is used to drive the oil seal pressing head (8) to press fit the oil seal (60).

4. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 1, characterized in that: The slide plate (5) is fixedly connected to the slide block (3) via bolts.

5. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 1 is characterized in that: The guide rail (4) is fixedly connected to the mounting plate (1) via bolts.

6. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 1, characterized in that: The cylinder (2) is horizontally fixed on the mounting plate (1).

7. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 6, characterized in that: The cushion block (6) is connected to the cylinder (2) via a cylinder joint.

8. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 1, characterized in that: An on-site detection sensor (9) is provided on the side wall of the oil seal pressure head (8), and the on-site detection sensor (9) has a detection probe (11) extending in a vertical direction.

9. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 8, characterized in that: A probe return spring (10) is installed on the upper end of the detection probe (11).

10. The oil seal pressure head structure with automatic switching of press-fitting depth according to claim 1, characterized in that: A pressure head return spring (12) is also provided at the center of the bottom of the oil seal pressure head (8).

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