A press-fitting oil seal device

Abstract

This utility model relates to the field of wheel hub oil seal installation technology, specifically to a press-fit oil seal device. It includes a base, a clamping installation mechanism, and a protection mechanism. The protection mechanism includes a mounting frame, a positioning plate, an upper safety light curtain, a lower safety light curtain, an insulating tube, a mounting base, a retaining ring, and a press-fit device. During press-fitting, the upper safety light curtain acts as a transmitter, emitting a beam of infrared or visible light. The lower safety light curtain acts as a receiver, receiving and detecting whether the beam is blocked. If the beam is blocked due to an operator's hand entering the area, the lower safety light curtain stops receiving signals. Simultaneously, the control PLC inside the electrical control cabinet controls the press-fit device to reset and remain in place, preventing the device from operating. This solves the problem that existing press-fitting equipment cannot provide timely safety protection if an operator accidentally enters the press-fitting work area, hindering safe production and processing.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub oil seal installation technology, and in particular to a press-fit oil seal device. Background Technology

[0002] The primary function of wheel hub oil seals is to seal the grease inside the wheel hub, preventing grease leakage and thus preventing brake failure caused by leakage. Currently, some vehicles experience premature failure of wheel hub oil seals. This problem stems from the fact that the oil seals are prone to deformation after assembly. The root cause is that wheel hub oil seals are often assembled by hammering with a plastic hammer, which can easily deform the internal skeleton of the seal, leading to oil leakage. Furthermore, assembling with a plastic hammer is labor-intensive and compromises product quality.

[0003] A search revealed that prior art CN203956454U discloses a quick-pressing mechanism for wheel hub oil seals, including a wheel hub workpiece and an oil seal. The pressing mechanism also includes a base, a column mounted on the base, a telescopic guide sleeve mounted on the column, a support fixedly mounted on the telescopic guide sleeve, and a pneumatic-hydraulic booster cylinder mounted on the support. A pressure plate is located below the push rod of the pneumatic-hydraulic booster cylinder. The wheel hub workpiece is positioned below the pneumatic-hydraulic booster cylinder, and the oil seal is positioned directly below the pressure plate and corresponds to the oil seal mounting seat of the wheel hub workpiece. A buffer block is located below the pressure plate. The quick-pressing mechanism for wheel hub oil seals provided by this utility model has advantages such as improving the assembly quality of wheel hub oil seals, increasing production efficiency, and reducing the labor intensity of workers.

[0004] However, the above equipment has the following problems during processing: if the operator's hand accidentally enters the pressing work area during pressing, the equipment cannot provide timely safety protection, which is not conducive to safe production and processing. Utility Model Content

[0005] The purpose of this utility model is to provide a press-fitting oil seal device, which aims to solve the problem that existing press-fitting equipment cannot provide timely safety protection if the operator's hand accidentally enters the press-fitting work area, which is not conducive to safe production and processing.

[0006] To achieve the above objectives, this utility model provides a press-fit oil seal device, including a base, a clamp mounting mechanism on the base, and a protective mechanism;

[0007] The protection mechanism includes a mounting frame, a positioning plate, an upper safety light curtain, a lower safety light curtain, an insulating tube, a mounting base, a retaining ring, and a pressing device. The mounting frame is fixed on the base, and an electrical control cabinet is mounted on the rear side of the mounting frame. The positioning plate is detachably connected to the mounting frame and is located on the top front side of the mounting frame. The upper safety light curtain is detachably connected to the positioning plate and electrically connected to the electrical control cabinet. The lower safety light curtain is installed in the stepped cavity of the base. The insulating tube is located on the top right side of the mounting frame. The mounting base is detachably connected to the insulating tube via the retaining ring and is also detachably connected to the mounting frame. The pressing device is located on the side of the mounting frame near the clamp mounting mechanism.

[0008] The pressing device includes a drive assembly, a connecting seat, a pressing head, and a guide assembly. The drive assembly is mounted on the top of the mounting frame and electrically connected to the electrical control cabinet. The connecting seat is connected to the output end of the drive assembly. The pressing head is detachably connected to the connecting seat and is located at the bottom of the connecting seat. The guide assembly is located on the side of the connecting seat near the mounting frame.

[0009] The guide assembly includes a guide rod and a T-shaped linear sliding bearing. The guide rod is connected to a rectangular plate on the rear side of the connecting seat. The T-shaped linear sliding bearing is mounted on the mounting bracket and slides with the guide rod.

[0010] The fixture mounting mechanism includes a fixture platform and a limiting plate. The fixture platform is mounted on the base. The limiting plate is detachably connected to the fixture platform and is located in front of the fixture platform.

[0011] The press-fit oil seal device further includes an isolation mechanism, which includes a rubber tube and a threaded ring. The rubber tube is detachably connected to the mounting bracket and is located near the inlet side of the insulating tube. The threaded ring is threadedly connected to the rubber tube and can abut against the mounting bracket.

[0012] This utility model discloses a press-fitting device for oil seals. During press-fitting, the hub is fixed by a clamp, and then the oil seal is placed on the mounting hole of the hub. Further, the press-fitting device is controlled by pressing down the operating button on the front side of the base, which is electrically connected to the electrical control cabinet. During press-fitting, the upper safety light curtain acts as a transmitter, emitting a beam of infrared or visible light, and the lower safety light curtain acts as a receiver, receiving and detecting whether the beam is blocked. If the beam is blocked due to the operator's hand entering the work area, the lower safety light curtain stops receiving the signal, and the control PLC inside the electrical control cabinet simultaneously controls the press-fitting device to reset and remain stationary, preventing the equipment from operating. This solves the problem that existing press-fitting equipment cannot provide timely safety protection if the operator's hand accidentally enters the press-fitting work area, which is detrimental to safe production and processing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the press-fit oil seal device according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the mounting base according to the first embodiment of this utility model.

[0016] Figure 3 This is a front view of the press-fit oil seal device according to the second embodiment of this utility model.

[0017] Figure 4 This is the second embodiment of the present utility model. Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 101-base, 102-mounting bracket, 103-positioning plate, 104-upper safety light curtain, 105-lower safety light curtain, 106-insulating tube, 107-mounting seat, 108-circlip, 109-drive assembly, 110-connecting seat, 111-pressure head, 112-guide rod, 113-T-shaped linear sliding bearing, 114-clamp table, 115-limiting plate, 116-electrical control cabinet, 201-rubber tube, 202-threaded ring. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1:

[0021] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the press-fit oil seal equipment. Figure 2This is a structural schematic diagram of the mounting base 107. This utility model provides a press-fit oil seal device: it includes a base 101, a clamping mounting mechanism, and a protective mechanism. The protective mechanism includes a mounting frame 102, a positioning plate 103, an upper safety light curtain 104, a lower safety light curtain 105, an insulating tube 106, a mounting base 107, a retaining ring 108, and a press-fitting device. The press-fitting device includes a drive assembly 109, a connecting seat 110, a pressing head 111, and a guide assembly. The guide assembly includes a guide rod 112 and a T-shaped linear sliding bearing 113. The clamping mounting mechanism includes a clamping table 114 and a limiting plate 115. This solution solves the problem that existing press-fitting equipment cannot provide timely safety protection if the operator's hand accidentally enters the press-fitting work area, which is detrimental to safe production and processing. It is understood that the aforementioned solution can improve the processing safety of the equipment.

[0022] In this embodiment, a clamp mounting mechanism is provided on the base 101, and the base 101 can be fixed by bolts. The clamp mounting mechanism is used for wheel hub clamp mounting. A protective plate is provided on the front side of the base 101, and control buttons are provided on the protective plate, one is a start button and the other is an emergency stop button.

[0023] The mounting bracket 102 is fixed on the base 101. An electrical control cabinet 116 is mounted on the rear side of the mounting bracket 102. The positioning plate 103 is detachably connected to the mounting bracket 102 and is located on the top front side of the mounting bracket 102. The upper safety light curtain 104 is detachably connected to the positioning plate 103 and electrically connected to the electrical control cabinet 116. The lower safety light curtain 105 is installed in the stepped cavity of the base 101. The insulating tube 106 is located on the top right side of the mounting bracket 102. The mounting seat 107 is detachably connected to the insulating tube 106 via the snap ring 108 and is also detachably connected to the mounting bracket 102. The pressing device is located on the side of the mounting bracket 102 near the clamp mounting mechanism. The mounting bracket 102 is fixed by positioning pins and bolts. The electrical control cabinet 116 is equipped with a control PLC and corresponding electrical components. The positioning plate 103 is fixed by bolts. The housing of the upper safety light curtain 104 is connected to the positioning plate 103 by bolts. The housing of the lower safety light curtain 105 is installed in the stepped cavity on the base 101 by bolts. The rear side wall of the stepped cavity is provided with a through cable hole for easy cable installation. The insulating tube 106 is provided with limiting ring structures on both sides to facilitate the sliding and limiting of the mounting base 107. At the same time, the insulating tube 106 is provided with a retaining spring groove to facilitate the installation of the retaining spring 108. The retaining spring 108 is used to prevent the mounting base 107 from detaching from both sides of the insulating tube 106. The insulating tube 106 is used for cable installation of the upper safety light curtain 104. The mounting bracket 102 is provided with a vertical through hole near the cable inlet side of the insulating tube 106 for easy cable insertion. The pressing device is used for oil seal pressing.

[0024] Secondly, the drive assembly 109 is mounted on the top of the mounting bracket 102 and electrically connected to the electrical control cabinet 116; the connecting seat 110 is connected to the output end of the drive assembly 109; the pressure head 111 is detachably connected to the connecting seat 110 and located at the bottom of the connecting seat 110; the guide assembly is located on the side of the connecting seat 110 near the mounting bracket 102. The drive assembly 109 can be a cylinder or a hydraulic cylinder, and a pressure regulating structure is provided on the external air supply line or hydraulic line for adjusting the working pressure. The top of the connecting seat 110 is provided with a threaded hole for easy connection with the external threaded end of the output end of the drive assembly 109. The bottom of the connecting seat 110 is provided with a rectangular block, and a rectangular cavity is provided inside the rectangular block. Through holes are provided on both sides of the rectangular cavity to facilitate the sliding of the rectangular connecting part at the top of the pressure head 111 into the sliding cavity and then connected by a T-shaped screw nut. The bottom of the pressure head 111 is designed according to the contour of the oil seal press-fit contact end face. The guide assembly is used for the vertical movement of the connecting seat 110.

[0025] Then, the guide rod 112 is connected to the rectangular plate on the rear side of the connecting seat 110; the T-shaped linear sliding bearing 113 is mounted on the mounting bracket 102 and slides in cooperation with the guide rod 112. The T-shaped linear sliding bearing 113 is fixed by bolts, and the bottom of the guide rod 112 is tightened to the rectangular plate on the rear side of the connecting seat 110 by bolts.

[0026] Finally, the clamping platform 114 is mounted on the base 101; the limiting plate 115 is detachably connected to the clamping platform 114 and is located on the front side of the clamping platform 114. The clamping platform 114 is fixed by positioning pins and bolts, and symmetrically arranged non-through T-shaped grooves are provided to facilitate clamp installation. The bottom of the clamping fixing plate is provided with symmetrical T-shaped blocks. The limiting plate 115 is fixed by bolts and is used for limiting the position after the wheel hub fixing clamp is installed.

[0027] When using this utility model to solve the problem that existing pressing equipment cannot provide timely safety protection if the operator's hand accidentally enters the pressing work area, which is detrimental to safe production and processing, the wheel hub is fixed by a clamp during pressing. Then, the oil seal is placed on the mounting hole of the wheel hub. Furthermore, the pressing device is activated by pressing down the start operation button on the front side of the base 101, which is electrically connected to the electrical control cabinet 116. The specific process is as follows: the drive component 109 is activated, driving the connecting seat 110 downward, so that the pressing head 111 moves downward to perform pressing. After a delay by the control system, the drive... The moving component 109 moves upward to reset and completes the pressing process. During pressing, the upper safety light curtain 104 acts as a transmitter, emitting a beam of infrared or visible light. The lower safety light curtain 105 acts as a receiver, receiving the beam and detecting whether it is blocked. If the beam is blocked due to an operator's hand entering the beam, the lower safety light curtain 105 stops receiving signals. At the same time, the control PLC inside the electrical control cabinet 116 controls the pressing device to reset and keep the equipment from moving. This solves the problem that existing pressing equipment cannot provide timely safety protection if the operator's hand accidentally enters the pressing work area, which is detrimental to safe production and processing.

[0028] Example 2:

[0029] like Figure 3 and Figure 4 As shown, where Figure 3 This is a front view of the equipment used for press-fitting oil seals. Figure 4 yes Figure 3 The enlarged view at point A shows that, based on the first embodiment, this utility model provides a press-fit oil seal device, which further includes an isolation mechanism, comprising a rubber tube 201 and a threaded ring 202.

[0030] The rubber tube 201 is detachably connected to the mounting bracket 102 and is located near the inlet side of the insulating tube 106. The threaded ring 202 is threadedly connected to the rubber tube 201 and can abut against the mounting bracket 102. The rubber tube 201 is made of hard rubber and is U-shaped, allowing it to pass through the vertical cable hole on the mounting bracket 102. The threaded ring 202 is mounted on the external threaded end at the bottom of the rubber tube 201.

[0031] In this embodiment, by further providing the rubber tube 201 and the threaded ring 202, the portion of the upper safety light curtain 104 passing through the cable hole on the mounting bracket 102 can be isolated and protected.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A press-fitting oil seal device, comprising a base, wherein a clamp mounting mechanism is provided on the base, characterized in that: It also includes protection agencies; The protection mechanism includes a mounting frame, a positioning plate, an upper safety light curtain, a lower safety light curtain, an insulating tube, a mounting base, a retaining ring, and a pressing device. The mounting frame is fixed on the base, and an electrical control cabinet is mounted on the rear side of the mounting frame. The positioning plate is detachably connected to the mounting frame and is located on the top front side of the mounting frame. The upper safety light curtain is detachably connected to the positioning plate and electrically connected to the electrical control cabinet. The lower safety light curtain is installed in the stepped cavity of the base. The insulating tube is located on the top right side of the mounting frame. The mounting base is detachably connected to the insulating tube via the retaining ring and is also detachably connected to the mounting frame. The pressing device is located on the side of the mounting frame near the clamp mounting mechanism.

2. The equipment for press-fitting oil seals as described in claim 1, characterized in that: The pressing device includes a drive assembly, a connecting seat, a pressing head, and a guide assembly. The drive assembly is mounted on the top of the mounting frame and electrically connected to the electrical control cabinet. The connecting seat is connected to the output end of the drive assembly. The pressing head is detachably connected to the connecting seat and is located at the bottom of the connecting seat. The guide assembly is located on the side of the connecting seat near the mounting frame.

3. The equipment for press-fitting oil seals as described in claim 2, characterized in that: The guide assembly includes a guide rod and a T-shaped linear sliding bearing. The guide rod is connected to a rectangular plate on the rear side of the connecting seat. The T-shaped linear sliding bearing is mounted on the mounting bracket and slides in cooperation with the guide rod.

4. The equipment for press-fitting oil seals as described in claim 1, characterized in that: The fixture mounting mechanism includes a fixture platform and a limiting plate. The fixture platform is mounted on the base. The limiting plate is detachably connected to the fixture platform and is located in front of the fixture platform.

5. The equipment for press-fitting oil seals as described in claim 1, characterized in that... : The press-fit oil seal device also includes an isolation mechanism, which includes a rubber tube and a threaded ring. The rubber tube is detachably connected to the mounting bracket and is located near the inlet side of the insulating tube. The threaded ring is threadedly connected to the rubber tube and can abut against the mounting bracket.

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