Floating oil seal press fitting and inspection integrated device

Abstract

The invention discloses a floating oil seal press-fitting and inspection integrated device, which comprises a press-fitting disc, a plurality of contact heads, a connecting frame, a swing needle and a detection disc, and is characterized in that the plurality of contact heads are arranged on the corresponding surface of the press-fitting surface of the press-fitting disc and can slide along the axial direction of the press-fitting disc; one end of the contact head is connected with the connecting frame on the corresponding face side, the other end of the contact head extends to one side of the press-fitting face of the press-fitting disc, the end of the contact head can make contact with the oil seal in the press-fitting process, and inclination of the oil seal can be synchronized to the connecting frame through the contact head. According to the floating oil seal press-fitting and inspection integrated device, by designing the floating oil seal press-fitting and floating seal ring press-fitting parallelism detection integrated device, floating seal ring press-fitting parallelism detection can be synchronously carried out in the floating oil seal press-fitting process, the assembly efficiency is high, and the assembly quality is effectively guaranteed; the device has high application value in floating oil seal assembly of track chassis thrust wheels, supporting chain wheels and guide wheels.

Description

Technical Field

[0001] The invention relates to a floating oil seal press-fitting and inspection integrated device, belonging to the technical field of crawler chassis component assembly. Background Art

[0002] As the core components of crawler chassis, the reliability of track rollers, carrier sprockets and guide wheels is particularly important. As the core seal, the floating oil seal has always been the key quality control point for its assembly accuracy and consistency in the industry. Currently, the industry mostly uses tooling to complete the floating oil seal press-fitting and then uses a height gauge to test the parallelism of the floating seal ring press-fitting. In order to improve assembly efficiency, random inspections are often used. This method is prone to the outflow of unqualified products and cannot fully control the quality of floating oil seal press-fitting. If a full inspection method is used, its assembly efficiency is low and the labor intensity is high. Manual inspection cannot fully guarantee the accuracy of the inspection. It can be seen that in order to improve the efficiency of parallelism detection, so that the assembly efficiency is high and the assembly quality is effectively guaranteed, a floating oil seal press-fitting and inspection integrated device is urgently needed. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an integrated floating oil seal press-fitting and inspection device. By designing an integrated device for floating oil seal press-fitting and floating seal ring press-fitting parallelism detection, the floating seal ring press-fitting parallelism detection can be carried out simultaneously during the floating oil seal press-fitting process, the assembly efficiency is high and the assembly quality is effectively guaranteed. The invention has high application value in the assembly of floating oil seals on track chassis supporting wheels, sprocket wheels and guide wheels.

[0004] In order to achieve the above objectives / solve the above technical problems, the present invention is implemented by adopting the following technical solutions: A floating oil seal press-fitting and inspection integrated device, comprising: a press-fitting plate, a contact head, a connecting frame, a pendulum needle and a detection plate, wherein: The contact heads are provided in plurality, and the plurality of contact heads are mounted on corresponding surfaces of the press-fitting surface of the press-fitting disk and are capable of sliding along the axial direction of the press-fitting disk. One end of the contact head is connected to the connecting frame on the corresponding surface side, and the other end of the contact head extends to the side of the press-fitting surface of the press-fitting disk. During press-fitting, the end of the contact head can contact the oil seal, and the tilt of the oil seal will be synchronized to the connecting frame through the contact head. The oscillating needle is installed in the middle of the side of the connecting frame away from the press-fitting plate, and the deviation of the oscillating needle reflects the change of the parallelism of the oil seal; One end of the detection disk is open and the other end is closed. The open end of the detection disk is connected to the press-fit disk. The pendulum needle is located in the detection disk. The end face of the closed end of the detection disk and the needle tip of the pendulum needle in the non-offset state are located in the same horizontal plane. A detection hole is opened on the closed end of the detection disk. By observing whether the needle tip of the pendulum needle is within the range of the detection hole, it is judged whether the parallelism of the oil seal is qualified.

[0005] Furthermore, the radius of the detection hole satisfies the following formula: ; Where r is the radius of the detection hole, L is the distance from the pendulum needle tip to the plane on the connecting frame, D is the center distance between the two diagonal contact heads, and n is the correction coefficient. Depending on the type of floating seal being measured, n=0.8~0.95.

[0006] Furthermore, there are four contact heads, and each of the four contact heads forms a group of two, and the two contact heads in each group are arranged diagonally.

[0007] Furthermore, the connecting frame includes a pendulum needle mounting portion and a plurality of legs, wherein: The plurality of legs are mounted on the outside of the pendulum needle mounting portion, and one end of the leg away from the pendulum needle mounting portion is rotatably connected to the end of the contact head through a connecting pin.

[0008] Furthermore, it also includes a screw and a spring, the support leg is provided with a mounting hole, the screw is inserted into the spring and then passes through the mounting hole and is threadedly connected to the press-fit plate; The diameter of the mounting hole is larger than the diameter of the screw rod and smaller than the diameter of the spring.

[0009] Furthermore, the contact head includes a first cylinder and a second cylinder connected in the axial direction, and the diameter of the first cylinder is larger than the diameter of the second cylinder; The first cylinder is connected to the connecting frame, the second cylinder is slidably connected to the pressing plate, and the pressing plate is provided with a connecting hole adapted to the second cylinder.

[0010] Furthermore, a press-fitting ring and a guide ring are provided on the press-fitting surface of the press-fitting plate, wherein: The press-fitting ring is installed on the circumference of the press-fitting surface, and the guide ring is installed in the middle of the press-fitting surface.

[0011] Furthermore, the detection plate is connected to the press-fit plate by bolts, and a slot for the legs of the connecting frame to pass through is provided on the side wall of the open end of the detection plate.

[0012] Furthermore, it also includes a gripping rod, which is installed on the outer side of the detection plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an integrated floating oil seal press-fitting and inspection device. A slidable contact head is mounted on a press-fitting plate, one end of which is connected to a connecting frame and the other end of which is capable of contacting the oil seal. This allows changes in the parallelism of the oil seal to be reflected by changes in the contact head during the press-fitting process. Changes in the contact head can be reflected by the deflection of a pendulum needle mounted on the connecting frame. Furthermore, the provision of a detection hole on the inspection plate allows the parallelism of the oil seal to be determined by observing whether the tip of the pendulum needle is within the detection hole range. This allows for simultaneous parallelism testing of the floating seal ring during the press-fitting process of the floating oil seal. The present invention provides a floating oil seal press-fitting and inspection integrated device, which provides a gripping rod on the outer side of a detection disk, so that workers can conveniently operate the detection disk through the gripping rod to realize press-fitting of the press-fitting disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an assembly diagram of a floating oil seal press-fitting and inspection integrated device provided by the present invention; Figure 2 yes Figure 1 an exploded view of the device shown; Figure 3 yes Figure 1 A cross-sectional view of the device in working state; Figure 4 yes Figure 1 a top view of the device shown; Figure 5 yes Figure 1 Bottom view of the device shown.

[0015] In the figure: 1. Press-fit plate; 2. Contact head; 3. Connecting pin; 4. Connecting frame; 5. Spring; 6. Screw; 7. Swing needle; 8. Bolt; 9. Detection plate; 10. Floating seal ring; 11. Floating seal rubber ring; 12. Floating seal seat. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. Example 1

[0019] like Figure 1 and Figure 2 As shown, this embodiment provides a floating oil seal press-fitting and inspection integrated device, including: a press-fitting plate 1, a contact head 2, a connecting frame 4, a pendulum needle 7 and a detection plate 9, wherein: The contact heads 2 are provided in plurality, and the plurality of contact heads 2 are mounted on the corresponding surfaces of the press-fitting surface of the press-fitting disk 1 and are capable of sliding along the axial direction of the press-fitting disk 1. One end of the contact head 2 is connected to the connecting frame 4 on the corresponding surface side, and the other end of the contact head 2 extends to the side of the press-fitting surface of the press-fitting disk 1. During press-fitting, the end of the contact head 2 can contact the oil seal, and the tilt of the oil seal will be synchronized to the connecting frame 4 through the contact head 2; The pendulum needle 7 is installed in the middle of the side of the connecting frame 4 away from the press plate 1, and the deviation of the pendulum needle 7 reflects the change of the parallelism of the oil seal; One end of the detection disk 9 is open and the other end is closed. The open end of the detection disk 9 is connected to the press-fit disk 1. The pendulum needle 7 is located in the detection disk 9. The end face of the closed end of the detection disk 9 and the needle tip of the pendulum needle 7 in the non-deflected state are located in the same horizontal plane. A detection hole is opened on the closed end of the detection disk 9. Whether the parallelism of the oil seal is qualified is judged by observing whether the needle tip of the pendulum needle 7 is within the range of the detection hole.

[0020] In the above technical solution, a slidable contact head 2 is installed on the press-fitting disk 1, one end of the contact head 2 is connected to the connecting frame 4, and the other end can contact the oil seal. This makes it possible to reflect the change in the parallelism of the oil seal through the change in the contact head 2 during the press-fitting process, and the change in the contact head 2 can be reflected by the offset of the pendulum needle 7 installed on the connecting frame 4. In addition, the setting of the detection hole on the detection disk 9 makes it possible to judge whether the parallelism of the oil seal is qualified by observing whether the needle tip of the pendulum needle 7 is within the range of the detection hole, thereby realizing the simultaneous detection of the floating seal ring press-fitting parallelism during the floating oil seal press-fitting process. Example 2

[0021] like Figures 1 to 5 As shown, the floating oil seal press-fitting and inspection integrated device provided in this embodiment differs from the floating oil seal press-fitting and inspection integrated device provided in the first embodiment in that: In order to determine whether the parallelism of the oil seal is qualified based on whether the needle tip is within the range of the detection hole, the radius of the detection hole satisfies the following formula: ; Where r is the radius of the detection hole, L is the distance from the tip of the pendulum needle 7 to the upper plane of the connecting frame 4, D is the center distance between the two diagonal contact heads 2, and n is the correction coefficient. Depending on the type of floating seal being measured, n=0.8~0.95.

[0022] like Figure 1 and Figure 2 As shown, there are four contact heads 2 , and the four contact heads 2 form a group of two. The two contact heads 2 in each group are diagonally arranged.

[0023] To achieve the connection between the connecting frame 4, the swing pin 7 and the contact head 2, as shown in FIG. Figure 2 As shown, the connecting frame 4 includes a pendulum needle mounting portion and a plurality of legs, wherein: The plurality of legs are mounted on the outside of the pendulum needle mounting portion, and one end of the leg away from the pendulum needle mounting portion is rotatably connected to the end of the contact head 2 via a connecting pin 3 .

[0024] like Figure 1 and Figure 2 As shown, it also includes a screw 6 and a spring 5. A mounting hole is opened on the support leg. The screw 6 is inserted into the spring 5 and then passes through the mounting hole to be threadedly connected to the press plate 1; The diameter of the mounting hole is larger than the diameter of the screw rod 6 and smaller than the diameter of the spring 5 .

[0025] like Figure 2 As shown, the contact head 2 includes a first cylinder and a second cylinder connected along the axial direction, and the diameter of the first cylinder is larger than the diameter of the second cylinder; The first cylinder is connected to the connecting frame 4, the second cylinder is slidably connected to the press plate 1, the press plate 1 is provided with a connecting hole adapted to the second cylinder, and the first cylinder is provided with a groove for connecting to the connecting frame 4.

[0026] In order to realize the press-fitting and inspection guidance, such as Figure 3 and Figure 5 As shown, the pressing surface of the pressing plate 1 is provided with a pressing ring A and a guide ring B, wherein: The press-fitting ring A is installed on the circumference of the press-fitting surface, and the guide ring B is installed in the middle of the press-fitting surface.

[0027] like Figure 1 and Figure 2 As shown, the detection plate 9 is connected to the press-fit plate 1 by bolts 8, and a slot for the legs of the connecting frame 4 to pass through is provided on the side wall of the open end of the detection plate 9.

[0028] To facilitate press-fitting and inspection Figure 1 and Figure 2 As shown, it also includes a gripping rod, which is installed on the outer side of the detection plate 9.

[0029] Specifically: Figure 1 、 2 As shown, the device consists of a press-fit disk 1, a contact head 2, a connecting pin 3, a connecting frame 4, a spring 5, a screw 6, a pendulum pin 7, a bolt 8, and a detection disk. The contact head 2 is first inserted into the connecting hole of the press-fit disk 1. The contact head 2 can slide freely along the axial direction of the connecting hole. The four legs of the connecting frame 4 are respectively embedded in the groove above the contact head 2 and connected through the connecting pin 3. When the contact head 2 slides axially along the connecting hole of the press-fit disk 1, it can drive the connecting frame legs 4 to move up and down. When the sliding distances of the four contact heads 2 are different, the connecting frame 4 is in an inclined posture. The screw 6 is inserted into the spring 5 and then inserted into the mounting hole of the connecting frame 4 legs. Then connect and fix it with the corresponding threaded hole of the press-fit disk 1. At this time, the spring provides downward pressure to make the flange surface of the contact head 2 fit with the upper plane of the press-fit disk 1. The pendulum pin 7 is fixed to the center connecting hole of the connecting frame 4 with a slight interference fit. After all the above parts are assembled, check the verticality of the pendulum pin 7 and the upper plane of the press-fit disk 1. After the verticality test is passed, pass the bolt 8 through the mounting hole of the inspection disk 9 and screw it into the threaded hole of the press-fit disk 1 for about 3 turns. Adjust the position of the inspection disk 9. When the needle tip of the pendulum pin 7 is in the center of the inspection hole of the inspection disk 9, tighten the bolt 8. Through the above steps, the floating oil seal press-fitting and inspection integrated device assembly and debugging are completed; like Figure 3The figure shows the working state of the floating oil seal press-fitting and inspection integrated device. Before press-fitting, the floating seal rubber ring 11 is first inserted into the floating seal ring 10. This assembly is named a floating oil seal. The structure above the floating seal seat 12 and the position where the floating oil seal is matched is named a floating seal groove. The quality control point of the assembly process requires that after the floating seal rubber ring 11 of the floating oil seal is pressed into the floating seal groove of the floating seal seat 12, the parallelism between the upper surface of the floating seal ring 10 and the outer end surface of the floating seal groove of the floating seal seat 12 is ≤1mm. like Figure 3 、 4 As shown, first place the floating oil seal flat on the floating seal notch position of the floating seal seat 12, hold the grip position of the inspection plate 9, align the guide ring of the press-fitting plate 1 with the inner hole of the floating seal seat 12 and slide it down, and stop when the press-fitting ring A of the press-fitting plate 1 contacts the floating seal rubber ring 11, lift the floating oil seal press-fitting and inspection integrated device upwards, and then quickly apply force downward until the floating seal rubber ring 11 is completely pressed into the floating seal groove above the floating seal seat 12. In this process, the floating seal rubber ring 11 drives the floating seal ring 10 to move downward synchronously. At this time, the lower end face of the press-fitting ring of the press-fitting plate 1 is completely fitted with the upper end face of the floating seal groove of the floating seal seat 12, and the floating seal rubber ring 11 and the floating seal ring 10 reach the final assembly position, completing the floating oil seal press-fitting work. After press-fitting, the four contact heads 2 are respectively in contact with the four detection points of the floating seal ring 10 in the X and Y directions. The tilt angle of the floating seal ring 10 is converted into the tilt angle of the connecting frame 4 through the contact head 2. At this time, the needle tip of the vertical pendulum needle 7 installed on the connecting frame 4 will swing a certain distance. The 1mm parallelism between the upper plane of the floating seal ring 10 and the outer end face of the floating seal groove of the floating seal seat 12 required by the quality control point is converted into a tilt angle through the trigonometric function relationship. Then, it is converted into its needle tip translation through the length of the pendulum needle 7. This value is the radius size of the detection hole above the detection disk 9. The conversion formula is as follows:

[0030] in: r is the radius of the detection hole above the detection plate 9, mm; L is the distance from the tip of the swing needle 7 to the upper plane of the connecting frame, mm; D is the center distance between two diagonal contact heads 2, mm; n is the correction coefficient, which ranges from 0.8 to 0.95 depending on the type of floating seal being measured; The operator can quickly determine whether the parallelism between the upper plane of the floating seal ring 10 and the outer end surface of the floating seal groove of the floating seal seat 12 is qualified by observing whether the needle tip of the pendulum needle 7 is within the detection hole range on the detection disk 9. After the press-fitting is completed, the device is removed. At this time, the spring 5 provides downward pressure to restore the contact head 2 to its initial state. The above is the working principle of the floating oil seal press-fitting and inspection integrated device.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A floating oil seal press-fitting and inspection integrated device, characterized in that: include: A press-fitting plate (1), a contact head (2), a connecting frame (4), a pendulum needle (7) and a detection plate (9), wherein: A plurality of contact heads (2) are provided, and the plurality of contact heads (2) are mounted on the corresponding surface of the press-fitting surface of the press-fitting disk (1) and can slide along the axial direction of the press-fitting disk (1). One end of the contact head (2) is connected to the connecting frame (4) on the corresponding surface side, and the other end of the contact head (2) extends to the side of the press-fitting surface of the press-fitting disk (1). During press-fitting, the end of the contact head (2) can contact the oil seal, and the tilt of the oil seal will be synchronized to the connecting frame (4) through the contact head (2); The pendulum needle (7) is installed in the middle of one side of the connecting frame (4) away from the press-fitting plate (1), and the deviation of the pendulum needle (7) reflects the change of the parallelism of the oil seal; One end of the detection disk (9) is open and the other end is closed. The open end of the detection disk (9) is connected to the press-fit disk (1). The pendulum needle (7) is located in the detection disk (9). The end surface of the closed end of the detection disk (9) and the needle tip of the pendulum needle (7) in a non-deflected state are located in the same horizontal plane. A detection hole is opened on the closed end of the detection disk (9). Whether the parallelism of the oil seal is qualified is judged by observing whether the needle tip of the pendulum needle (7) is within the range of the detection hole.

2. The floating oil seal press-fitting and inspection integrated device according to claim 1, characterized in that: The radius of the detection hole satisfies the following formula: ； Wherein, r is the radius of the detection hole, L is the distance from the tip of the pendulum needle (7) to the upper plane of the connecting frame (4), D is the center distance between the two diagonal contact heads (2), and n is the correction coefficient. Depending on the type of floating seal being measured, n=0.8~0.

95.

3. The floating oil seal press-fitting and inspection integrated device according to claim 2, characterized in that: Four contact heads (2) are provided, and each of the four contact heads (2) forms a group of two, with the two contact heads (2) in each group being arranged diagonally.

4. The floating oil seal press-fitting and inspection integrated device according to claim 3, characterized in that: The connecting frame (4) comprises a pendulum needle mounting portion and a plurality of legs, wherein: The plurality of legs are mounted on the outside of the pendulum needle mounting portion, and one end of the leg away from the pendulum needle mounting portion is rotatably connected to the end of the contact head (2) via a connecting pin (3).

5. The floating oil seal press-fitting and inspection integrated device according to claim 4, characterized in that: It also includes a screw (6) and a spring (5), wherein a mounting hole is provided on the support leg, and the screw (6) is inserted into the spring (5) and passes through the mounting hole to be threadedly connected to the press-fit plate (1); The diameter of the mounting hole is larger than the diameter of the screw rod (6) and smaller than the diameter of the spring (5).

6. The floating oil seal press-fitting and inspection integrated device according to claim 5, characterized in that: The contact head (2) comprises a first cylinder and a second cylinder connected in the axial direction, wherein the diameter of the first cylinder is larger than the diameter of the second cylinder; The first cylinder is connected to the connecting frame (4), the second cylinder is slidably connected to the pressing plate (1), and the pressing plate (1) is provided with a connecting hole adapted to the second cylinder.

7. The floating oil seal press-fitting and inspection integrated device according to claim 6, characterized in that: A press-fitting ring and a guide ring are provided on the press-fitting surface of the press-fitting disc (1), wherein: The press-fitting ring is installed on the circumference of the press-fitting surface, and the guide ring is installed in the middle of the press-fitting surface.

8. The floating oil seal press-fitting and inspection integrated device according to claim 7, characterized in that: The detection plate (9) is connected to the press plate (1) via bolts (8), and a slot for the legs of the connecting frame (4) to pass through is provided on the side wall of the open end of the detection plate (9).

9. The floating oil seal press-fitting and inspection integrated device according to claim 8, characterized in that: It also includes a gripping rod, which is mounted on the outer side of the detection plate (9).

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