Oil seal press fitting device

Abstract

The utility model relates to an oil seal press fitting device which comprises a single-column hydraulic press used for press fitting. The positioning assembly is used for positioning the oil seal seat; the positioning assembly is arranged on the single-column hydraulic press; the lower fixing assembly is used for fixing the positioning assembly; the lower fixing assembly is connected with the positioning assembly and the single-column hydraulic press; the guide assembly is used for guiding the oil seal; the guide assembly is arranged on the single-column hydraulic press and located over the positioning assembly. The upper fixing assembly is used for fixing the guide assembly; and the upper fixing assembly is connected with the guide assembly and the single-column hydraulic press. According to the oil seal press-fitting device, the coaxiality requirement and the position precision requirement can be met, and the problems of oil seal scratching, deflection and the like caused by manual operation can be solved; for oil seals and oil seal seats of different models, only the pressing head and the positioning body need to be replaced, the universality of the press fitting device is achieved, meanwhile, the assembling efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seals, in particular to an oil seal press-fitting device. Background Art

[0002] At present, oil seals are widely used in the fields of automobiles and agricultural machinery. They can prevent the intrusion of substances such as sand, dust, and water vapor, and prevent the leakage of lubricating oil. They are essential non-metallic accessories. During the assembly process, the coaxiality and position accuracy requirements of the oil seal and the matching parts should be strictly controlled, and the problem of oil seal scratches should be avoided, which will lead to oil leakage and pollution intrusion.

[0003] The traditional oil seal press-fitting structure is an oil seal punch, which relies on manual operation. However, the existing technology has the following disadvantages:

[0004] (1) The oil seal press-fit structure has no guide and limit, and it is difficult to ensure its position accuracy and coaxiality during the assembly process. It is easy to cause problems such as incomplete assembly and oil seal deflection, which affects the sealing function of the oil seal;

[0005] (2) Manual operation is required, and the force during the oil seal assembly process is uneven, which poses a risk of damaging the oil seal. It also requires high operating skills from the operating staff and is inefficient. Utility Model Content

[0006] In view of this, the utility model provides an oil seal press-fitting device.

[0007] Specifically, the utility model is realized by the following technical solutions:

[0008] According to a first aspect of the utility model, there is provided an oil seal press-fitting device, comprising:

[0009] Single-column hydraulic press for press fitting;

[0010] A positioning assembly, used for positioning the oil seal seat; the positioning assembly is arranged on the single-column hydraulic press;

[0011] A lower fixing assembly, used to fix the positioning assembly; the lower fixing assembly connects the positioning assembly and the single-column hydraulic press;

[0012] A guide assembly, used for guiding the oil seal; the guide assembly is arranged on the single-column hydraulic press and is located directly above the positioning assembly;

[0013] The upper fixing assembly is used to fix the guide assembly; the upper fixing assembly connects the guide assembly and the single-column hydraulic press.

[0014] Optionally, the positioning assembly includes: a positioning base plate, the positioning base plate is arranged at the lower part of the single-column hydraulic press, and the lower fixing assembly connects the positioning base plate and the single-column hydraulic press.

[0015] Optionally, the positioning assembly further includes: a positioning seat and a lower fixing screw, the positioning seat is arranged on the positioning base plate, and the lower fixing screw connects the positioning seat and the positioning base plate.

[0016] Optionally, the positioning assembly further includes: a positioning body, wherein the positioning body is disposed on the positioning seat.

[0017] Optionally, the lower fixing assembly includes: a lower fixing member, and the lower fixing member connects the positioning base plate and the single-column hydraulic press.

[0018] Optionally, the guide assembly includes: a connecting plate, which is arranged on the upper part of the single-column hydraulic press, and the upper fixing assembly connects the connecting plate and the single-column hydraulic press.

[0019] Optionally, the guide assembly further includes: a positioning shaft, and the positioning shaft is arranged on the connecting plate.

[0020] Optionally, the guide assembly further includes: a guide sleeve and an upper fixing screw, wherein the upper fixing screw connects the guide sleeve and the positioning shaft.

[0021] Optionally, the guide assembly further comprises: a pressure head, wherein the pressure head is disposed in the guide sleeve.

[0022] Optionally, the upper fixing assembly includes: an upper fixing member, and the upper fixing member connects the connecting plate and the single-column hydraulic press.

[0023] The technical solution provided by the utility model brings at least the following beneficial effects:

[0024] An oil seal pressing device provided in the present application can ensure the coaxiality requirements and position accuracy requirements, and can solve the problems of oil seal scratches and deflection caused by manual operation; for different types of oil seals and oil seal seats, only the pressure head and the positioning body need to be replaced, thereby realizing the versatility of the pressing device, while improving the assembly efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 A schematic diagram of an oil seal press-fitting device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that, in the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to express other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0030] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0032] Figure 1 An oil seal press-fitting device is schematically shown.

[0033] Reference Figure 1 As shown, the present application provides an oil seal press-fitting device, comprising:

[0034] Single-column hydraulic press 1, used for press fitting;

[0035] A positioning assembly, used for positioning the oil seal seat; the positioning assembly is arranged on the single-column hydraulic press 1;

[0036] A lower fixing assembly, used to fix the positioning assembly; the lower fixing assembly connects the positioning assembly and the single-column hydraulic press 1;

[0037] A guide assembly, used for guiding the oil seal; the guide assembly is arranged on the single-column hydraulic press 1 and is located directly above the positioning assembly;

[0038] The upper fixing assembly is used to fix the guide assembly; the upper fixing assembly connects the guide assembly and the single-column hydraulic press 1.

[0039] In the embodiment of the present application, the positioning assembly is used to position the oil seal seat, and the guide assembly is used to guide the oil seal. The single-column hydraulic press 1 is controlled so that the guide assembly moves toward the positioning assembly, thereby completing the press-fitting of the oil seal and the oil seal seat.

[0040] Exemplarily, the positioning assembly includes: a positioning base plate 5, a positioning seat 7, a lower fixing screw 6 and a positioning body 8, the positioning base plate 5 is arranged at the lower part of the single-column hydraulic press 1, the lower fixing assembly connects the positioning base plate 5 and the single-column hydraulic press 1, the positioning seat 7 is arranged on the positioning base plate 5, the lower fixing screw 6 connects the positioning seat 7 and the positioning base plate 5, and the positioning body 8 is arranged on the positioning seat 7.

[0041] In the embodiment of the present application, the lower fixing assembly is used to connect the positioning base plate 5 and the single-column hydraulic press 1, the lower fixing screw 6 is used to connect the positioning seat 7 and the positioning base plate 5, and the positioning body 8 is installed on the positioning seat 7.

[0042] Exemplarily, the lower fixing assembly includes: a lower fixing member 2 , wherein the lower fixing member 2 connects the positioning base plate 5 and the single-column hydraulic press 1 .

[0043] In the embodiment of the present application, the lower fixing member 2 may be a screw and a nut used in conjunction with each other, and the screw and the nut cooperate with each other to fix the positioning base plate 5 on the single-column hydraulic press 1.

[0044] Exemplarily, the guide assembly includes: a connecting plate 13, a positioning shaft 14, a guide sleeve 11, an upper fixing screw 3 and a pressure head 9, the connecting plate 13 is arranged on the upper part of the single-column hydraulic press 1, the upper fixing assembly connects the connecting plate 13 and the single-column hydraulic press 1, the positioning shaft 14 is arranged on the connecting plate 13, the upper fixing screw 3 connects the guide sleeve 11 and the positioning shaft 14, and the pressure head 9 is arranged in the guide sleeve 11.

[0045] In the embodiment of the present application, the upper fixing assembly is used to connect the connecting plate 13 and the single-column hydraulic press 1, the positioning shaft 14 is installed on the connecting plate 13, the upper fixing screw 3 is used to connect the guide sleeve 11 and the positioning shaft 14, and the pressure head 9 is installed on the guide sleeve 11.

[0046] Exemplarily, the upper fixing assembly includes: an upper fixing member 3 , wherein the upper fixing member 3 connects the connecting plate 13 and the single-column hydraulic press 1 .

[0047] In the embodiment of the present application, the upper fixing member 3 may be a screw and a nut used in conjunction with each other, and the screw and the nut cooperate with each other to fix the connecting plate 13 on the single-column hydraulic press 1.

[0048] The oil seal pressing device provided in this application comprises Figure 1 In the structural composition shown, the coaxiality of the press-fitting shaft above the single-column hydraulic press 1 and the hole below is ensured by the press itself. The positioning base plate 5 is assembled with the lower fixing assembly below the single-column hydraulic press 1, and the positioning seat 7 is assembled on the positioning base plate 5 with the lower fixing screws 6. The coaxiality of the positioning base plate 5, the positioning seat 7 and the single-column hydraulic press 1 is ensured by the cooperation of the guide shaft below the positioning seat 7 and the hole below the single-column hydraulic press 1.

[0049] The connecting plate 13 is assembled on the top of the single-column hydraulic press 1 with a fixing assembly, the positioning shaft 14 is installed, and the guide sleeve 11 is assembled with screws 12. The positioning shaft 14 cooperates with the hole of the press-fitting shaft of the single-column hydraulic press 1 to ensure the coaxiality among the guide sleeve 11, the positioning shaft 14, the connecting plate 13 and the single-column hydraulic press 1.

[0050] Since the coaxiality of the upper and lower parts of the single-column hydraulic press 1 is ensured by the accuracy of the single-column hydraulic press 1 itself, and the upper and lower parts of the device are coaxial respectively, the entire oil seal pressing device is coaxial before the pressure head 9 and the positioning body 8 are installed.

[0051] Different sizes and specifications of pressure heads 9 and positioning bodies 8 are designed for different types of oil seals and oil seal seats. The size specifications of the part above the cross section of the pressure head 9 are consistent, and the size specifications of the part below the cross section of the positioning body 8 are consistent, so as to ensure the versatility of the oil seal press-fitting device. The pressure head 9 is assembled with a pin 10 and a guide sleeve 11. The coaxiality of the pressure head 9 and the oil seal press-fitting device is ensured by the cooperation of the shaft above the cross section of the pressure head 9 and the hole of the guide sleeve 11, and the cooperation of the pin and the groove above the pressure head 9. The shaft below the cross section of the positioning body 8 is matched with the positioning seat 7 to ensure the coaxiality of the positioning seat and the press-fitting device.

[0052] When press-fitting the oil seal, put the oil seal on the cylindrical surface below the cross section of the pressure head 9. Design the diameter size and tolerance of the shaft below the cross section of the pressure head 9 according to the oil seal specifications. Ensure the coaxiality of the oil seal and the top of the press-fitting device through the cooperation of the pressure head shaft and the oil seal hole.

[0053] According to the size of the oil seal seat, the diameter and tolerance of the shaft above the positioning body section are designed, and the coaxiality of the oil seal seat and the press-fit device is ensured by matching the hole of the oil seal seat with the shaft of the positioning body. For oil seal seats that need to be equipped with double oil seals, it is necessary to design a limit ring according to the specifications of the oil seal and the oil seal seat. The limit ring only affects the position accuracy of the second oil seal and has no effect on the coaxiality of the entire device. Therefore, whether it is a single oil seal or a double oil seal oil seal seat, the above device can ensure the coaxial accuracy of the oil seal and the oil seal seat during the press-fitting process.

[0054] For the structure of a single oil seal, the position accuracy is mainly ensured by the pressure head 9. The cross section of the pressure head 9 is a limit surface. During the process of press-fitting the oil seal, when the cross section contacts the upper surface of the oil seal seat, the press-fitting stops. The height dimension of the pressure head 9 is designed in total according to the height dimensions of the oil seal and the oil seal seat, so as to ensure the position accuracy of the press-fitted oil seal.

[0055] For the double oil seal structure, when the second oil seal is press-fitted, a limit ring is required to ensure its position accuracy. When the second oil seal is press-fitted, a limit ring is installed on the oil seal seat, and the press fitting stops when the limit surface of the pressure head 9 contacts the upper surface of the limit ring. Therefore, the position accuracy of the second oil seal can be ensured by designing the height dimension of the limit ring.

[0056] An oil seal pressing device provided in the present application can ensure the coaxiality requirements and position accuracy requirements, and can solve the problems of oil seal scratches and deflection caused by manual operation; for different types of oil seals and oil seal seats, only the pressure head and the positioning body need to be replaced, thereby realizing the versatility of the pressing device, while improving the assembly efficiency and reducing labor intensity.

[0057] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. An oil seal press-fitting device, characterized in that: include: Single-column hydraulic press for press fitting; A positioning assembly, used for positioning the oil seal seat; the positioning assembly is arranged on the single-column hydraulic press; A lower fixing assembly, used to fix the positioning assembly; the lower fixing assembly connects the positioning assembly and the single-column hydraulic press; A guide assembly, used for guiding the oil seal; the guide assembly is arranged on the single-column hydraulic press and is located directly above the positioning assembly; An upper fixing assembly, used to fix the guide assembly; the upper fixing assembly connects the guide assembly and the single-column hydraulic press; The positioning base plate is arranged at the lower part of the single-column hydraulic press, and the lower fixing assembly connects the positioning base plate and the single-column hydraulic press; The positioning assembly further includes: a positioning seat and a lower fixing screw, wherein the positioning seat is arranged on the positioning base plate, and the lower fixing screw connects the positioning seat and the positioning base plate; The positioning assembly further includes: a positioning body, the positioning body being arranged on the positioning seat; The lower fixing assembly includes: a lower fixing member, the lower fixing member connecting the positioning base plate and the single-column hydraulic press; The guide assembly includes: a connecting plate, the connecting plate is arranged on the upper part of the single-column hydraulic press, and the upper fixing assembly connects the connecting plate and the single-column hydraulic press; The guide assembly further includes: a positioning shaft, the positioning shaft being arranged on the connecting plate; The guide assembly further includes: a guide sleeve and an upper fixing screw, wherein the upper fixing screw connects the guide sleeve and the positioning shaft; The guide assembly further includes: a pressure head, the pressure head being arranged in the guide sleeve; The upper fixing assembly includes an upper fixing member, and the upper fixing member is connected to the connecting plate and the single-column hydraulic press.

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