Oil pan rubber sleeve press fitting device

Abstract

The utility model discloses an oil pan rubber sleeve press-fitting device which comprises a supporting unit, a pressing unit and a pressing unit. The supporting unit comprises a first supporting face and a second supporting face which are parallel to each other. The limiting unit is arranged on the first supporting surface, and the limiting unit is used for limiting the oil pan; a mounting hole is formed in the oil pan, and a rubber sleeve is mounted in the mounting hole; the driving device is arranged on the second supporting face, the driving device is provided with a pressure applying rod, and the pressure applying rod can move in the direction close to the mounting hole and is used for applying pressure to the rubber sleeve so that the rubber sleeve can be pressed into the mounting hole; and the control device is in control connection with the driving device and is used for controlling the stroke of the pressure applying rod of the driving device and recording working data. The oil pan rubber sleeve press-fitting device is simple and practical in structure, economical, efficient and high in working efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical manufacturing, and in particular to a device for pressing a rubber sleeve of an oil pan. Background Art

[0002] The oil pan is the lower part of the crankcase, also known as the lower crankcase. Its function is to seal the crankcase as the outer shell of the oil tank to prevent impurities from entering, collect and store the lubricating oil flowing back from the friction surfaces of the diesel engine, dissipate some heat, and prevent the lubricating oil from oxidizing.

[0003] The oil pan is provided with mounting holes, and rubber sleeves need to be pressed into the mounting holes so that the oil pan can be used normally. The current existing technology is to manually put the rubber sleeve into the specified position of the oil pan, use a hand hammer to knock the rubber sleeve, and press it into the corresponding hole of the oil pan. The work efficiency is low, and it cannot be guaranteed whether the riveting is to the specified position during mass production. The press-fitting quality is affected by the work quality of the workers, and the accurate tolerance size requirements cannot be accurately met. The demolding force requirements after riveting cannot be guaranteed, and manual knocking has certain risks. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an oil pan rubber sleeve pressing device which is simple and practical in structure, economical and efficient, and has high working efficiency.

[0005] The present application provides an oil pan rubber sleeve press-fitting device, comprising:

[0006] A support unit, the support unit comprising a first support surface and a second support surface parallel to each other;

[0007] A limiting unit is arranged on the first supporting surface and is used to limit the oil pan; the oil pan is provided with a mounting hole, and the mounting hole is used to install the rubber sleeve;

[0008] A driving device, the driving device is arranged on the second supporting surface, and the driving device has a pressure rod, which can move in a direction close to the mounting hole and is used to apply pressure to the rubber sleeve so that the rubber sleeve is pressed into the mounting hole;

[0009] The control device is connected to the driving device and is used to control the stroke of the pressure rod of the driving device and record working data.

[0010] Preferably, the driving device comprises:

[0011] The cylinder has a first cavity, in which a first piston is arranged that can move along the axis of the first cavity; the cylinder is provided with an air valve that is connected to the first cavity, and the air valve includes an air inlet valve and an air exhaust valve;

[0012] A hydraulic cylinder having a second cavity, a liquid valve being arranged between the second cavity and the first cavity, the liquid valve comprising an inlet valve and a discharge valve, when the first piston touches the inlet valve, the inlet valve is in an open state for filling liquid into the second cavity, and a second piston being arranged in the second cavity and movable along the axis of the second cavity.

[0013] Preferably, the first end of the pressure rod is fixedly connected to the second piston, and the second end movably passes through the hydraulic cylinder.

[0014] Preferably, a stroke limit block perpendicular to the axis of the pressure rod outside the hydraulic cylinder is provided on the side wall of the pressure rod, and the stroke limit block is close to the second end.

[0015] Preferably, the vertical distance between the bottom surface of the travel limit block and the second end surface is 5 mm.

[0016] Preferably, the input end of the control device is electrically connected to a pressure sensing device, and the pressure sensing device includes a first sensor and a second sensor. The first sensor is arranged in the first cavity, and is used to provide real-time feedback of a first pressure value in the first cavity to the control device, and the second sensor is arranged in the second cavity, and is used to provide real-time feedback of a second pressure value in the second cavity to the control device; the output end of the control device is connected to the air valve control, and is used to control the opening and closing of the air valve.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] (1) The cylinder of the present application adopts a gas-liquid booster cylinder. Before the cylinder contacts the riveted rubber sleeve at a safety height of 5 mm, it works quickly and moves with little force. At the safety height, the hydraulic cylinder starts to move slowly and the force increases to the rated value, thus saving working time.

[0019] (2) The pressing distance of the rubber sleeve of the present application is safe and controllable. On the one hand, the movement distance of the hydraulic cylinder is limited by program control. On the other hand, a travel limit block is designed. When the limit block contacts, mechanical contact occurs, rigid collision occurs, and the cylinder cannot move further downward.

[0020] The size of the pressing force is controllable, and the size of the pressing force is limited by the friction force. The size of the friction force depends on the material, the size of the interference fit, etc., so the size of the matching hole and the size of the rubber sleeve can be detected through the controllable feedback of the friction force;

[0021] (3) All riveting data of the rubber sleeve pressed in the present application is stored in the computer, which can be traced back to the quality, and can be automatically marked after the tooling process is completed and flow into the next program.

[0022] It should be understood that the contents described in the Summary of the Invention are not intended to limit the key or important features of the embodiments of the present application, nor are they intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 A schematic structural diagram of an oil pan rubber sleeve press-fitting device provided in an embodiment of the present application.

[0025] Numbers in the figure: 1, support unit; 2, limit unit; 3, drive device; 4, oil pan;

[0026] 11. first supporting surface; 12. second supporting surface; 13. mounting hole;

[0027] 31. Cylinder; 32. Hydraulic cylinder; 33. Pressure rod; 34. Travel limit block. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant application, rather than to limit the application. It is also necessary to explain that, for ease of description, only the parts related to the application are shown in the accompanying drawings.

[0029] 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.

[0030] Please refer to Figure 1 , an embodiment of the present application provides an oil pan rubber sleeve press-fitting device, comprising:

[0031] A support unit 1, the support unit 1 comprises a first support surface 11 and a second support surface 12 which are parallel to each other;

[0032] The limiting unit 2 is arranged on the first supporting surface 11, and is used to limit the oil pan 4; the oil pan 4 has a mounting hole 13, and the mounting hole 13 is used to install the rubber sleeve;

[0033] The driving device 3 is arranged on the second supporting surface 12, and has a pressure rod 33, which can move toward the direction close to the mounting hole 13, and is used to apply pressure to the rubber sleeve so that the rubber sleeve is pressed into the mounting hole 13;

[0034] The control device is connected to the driving device 3 and is used to control the stroke of the pressure rod 33 of the driving device 3 and record working data.

[0035] In a preferred embodiment, the driving device 3 comprises:

[0036] The cylinder 31 has a first cavity, in which a first piston movable along the axis of the first cavity is disposed; the cylinder 31 is provided with an air valve connected to the first cavity, and the air valve includes an air inlet valve and an air exhaust valve;

[0037] Hydraulic cylinder 3, hydraulic cylinder 32 has a second cavity, a liquid valve is arranged between the second cavity and the first cavity, the liquid valve includes an inlet valve and a discharge valve, when the first piston touches the inlet valve, the inlet valve is in an open state, and is used to fill liquid into the second cavity, and a second piston that can move along the axis of the second cavity is arranged in the second cavity.

[0038] In a preferred embodiment, the first end of the pressure rod 33 is fixedly connected to the second piston, and the second end movably passes through the hydraulic cylinder 32 .

[0039] In a preferred embodiment, a stroke limit block 34 perpendicular to the axis of the pressure rod 33 outside the hydraulic cylinder 32 is provided on the side wall thereof, and the stroke limit block 34 is close to the second end.

[0040] In a preferred embodiment, the vertical distance between the bottom surface of the travel limit block 34 and the second end surface is 5 mm.

[0041] In a preferred embodiment, the input end of the control device is electrically connected to a pressure sensing device, and the pressure sensing device includes a first sensor and a second sensor. The first sensor is arranged in a first cavity, and is used to provide real-time feedback of a first pressure value in the first cavity to the control device, and the second sensor is arranged in a second cavity, and is used to provide real-time feedback of a second pressure value in the second cavity to the control device; the output end of the control device is connected to the air valve control, and is used to control the opening and closing of the air valve.

[0042] How this application works:

[0043] When pressing the rubber sleeve, first place the oil pan 4 on the matching limit unit 2, and then start the drive device 3. The drive device 3 uses a gas-liquid booster cylinder. Before contacting the riveted rubber sleeve at a safety height of 5 mm, the cylinder 31 works and moves quickly and with little force. At the beginning of the safety height, the hydraulic cylinder 32 starts and moves slowly. The force is increased to the rated value to press the rubber sleeve.

[0044] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above are only preferred embodiments of the present application and are 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 pan rubber sleeve press-fitting device, characterized in that: include: A support unit, the support unit comprising a first support surface and a second support surface parallel to each other; A limiting unit, the limiting unit is arranged on the first supporting surface, and the limiting unit is used to limit the oil pan; the oil pan is provided with a mounting hole, and the mounting hole is used to install a rubber sleeve; A driving device, the driving device is arranged on the second supporting surface, the driving device has a pressure rod, the pressure rod can move in a direction close to the mounting hole, and is used to apply pressure to the rubber sleeve so that the rubber sleeve is pressed into the mounting hole; A control device is connected to the drive device and is used to control the stroke of the pressure rod of the drive device and record working data.

2. The oil pan rubber sleeve press-fitting device according to claim 1, characterized in that: The driving device comprises: A cylinder, wherein the cylinder has a first cavity, wherein a first piston movable along the axis of the first cavity is disposed in the first cavity; wherein an air valve communicating with the first cavity is disposed on the cylinder, wherein the air valve includes an air inlet valve and an air exhaust valve; A hydraulic cylinder having a second cavity, a liquid valve being arranged between the second cavity and the first cavity, the liquid valve comprising an inlet valve and a discharge valve, when the first piston touches the inlet valve, the inlet valve is in an open state for filling liquid into the second cavity, and a second piston movable along the axis of the second cavity is arranged in the second cavity.

3. The oil pan rubber sleeve press-fitting device according to claim 2, characterized in that: The first end of the pressure rod is fixedly connected to the second piston, and the second end movably passes through the hydraulic cylinder.

4. The oil pan rubber sleeve press-fitting device according to claim 3, characterized in that: A travel limit block perpendicular to the axis of the pressure rod is arranged on the side wall of the pressure rod outside the hydraulic cylinder, and the travel limit block is close to the second end.

5. The oil pan rubber sleeve press-fitting device according to claim 4, characterized in that: The vertical distance between the bottom surface of the travel limit block and the second end surface is 5 mm.

6. The oil pan rubber sleeve press-fitting device according to claim 5, characterized in that: The input end of the control device is electrically connected to a pressure sensing device, and the pressure sensing device includes a first sensor and a second sensor. The first sensor is arranged in the first cavity, and is used to provide real-time feedback of a first pressure value in the first cavity to the control device, and the second sensor is arranged in the second cavity, and is used to provide real-time feedback of a second pressure value in the second cavity to the control device; the output end of the control device is connected to the air valve control, and is used to control the opening and closing of the air valve.

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