Engine camshaft chamber rocker arm seat press fitting mechanism

Abstract

The utility model discloses an engine camshaft chamber rocker arm seat press -mounting mechanism, including the press -mounting oil cylinder of up -down alignment, press -mounting head, fixture plate and draw pin subassembly, the output of press -mounting oil cylinder drive press -mounting head, the camshaft chamber of fixture plate is placed and waits for press -mounting, the rocker arm seat of waiting for press -mounting is placed to the camshaft chamber, the positioning pin in draw pin subassembly can pass through the corresponding through -hole on fixture plate and insert into the corresponding assembly hole of camshaft chamber, and press -mounting oil cylinder drive press -mounting head down -press just can accurate press the hollow pin on rocker arm seat to camshaft chamber, draw pin subassembly includes draw pin cylinder, fixed seat, positioning pin and guide bushing, draw pin cylinder drive fixed seat, and positioning pin is installed on fixed seat, and guide bushing is sleeved in the through -hole of fixture plate, and positioning pin can pass through guide bushing and extend into the assembly hole of camshaft chamber. The press -mounting mechanism, through the telescopic positioning pin in draw pin subassembly to the hole of camshaft chamber and rocker arm seat, reaches the effect of accurate and efficient press -mounting.

Description

Technical Field

[0001] This utility model relates to the field of engine camshaft housing processing and manufacturing technology, and in particular to an engine camshaft housing rocker arm seat press-fitting mechanism. Background Technology

[0002] When pressing the rocker arm mount onto the engine camshaft housing, two hollow pins on the rocker arm mount need to be aligned and pressed into the corresponding mounting holes in the camshaft housing. The hollow pins and the mounting holes in the camshaft housing have an interference fit. During the pressing process, it is difficult to accurately align the hollow pins of the rocker arm mount with the mounting holes in the camshaft housing. Previously, this was done manually, making it difficult to guarantee the pressing quality and easily resulting in defective products. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides an engine camshaft chamber rocker arm seat press-fitting mechanism to overcome the deficiencies of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A rocker arm mounting mechanism for an engine camshaft housing includes a pressing cylinder, a pressing head, a clamping plate, and a pin-pulling assembly arranged sequentially in an upper and lower configuration. The output end of the pressing cylinder is mounted on and drives the pressing head via a connecting seat. The camshaft housing to be pressed is placed and positioned on the clamping plate. The rocker arm to be pressed is placed on the camshaft housing via an external connector. The positioning pin in the pin-pulling assembly can pass through a corresponding through hole on the clamping plate and be inserted into a corresponding assembly hole in the camshaft housing. The pressing cylinder drives the pressing head to press down, thereby pressing the hollow pin on the rocker arm into the corresponding assembly hole in the camshaft housing.

[0006] The pin-pulling assembly includes a pin-pulling cylinder, a fixed seat, a locating pin, and a guide sleeve. The fixed seat is installed at the output end of the pin-pulling cylinder and driven by the pin-pulling cylinder. The locating pin is fixedly installed on the top surface of the fixed seat. The guide sleeve is sleeved in the corresponding through hole of the fixture plate. The locating pin can pass through the guide sleeve and extend into the assembly hole of the camshaft chamber.

[0007] Furthermore, the fixed base includes a base plate and a clamping plate mounted on the bottom surface of the base plate. The clamping plate is fixedly connected to the output shaft of the pin-pulling cylinder via a connector.

[0008] Preferably, there are two positioning pins, which are fixedly mounted side by side on the top surface of the fixed base, and the distance between the two positioning pins corresponds to the through hole on the fixture plate.

[0009] Preferably, the pressing cylinder, clamping plate, and pin-pulling cylinder are all fixedly mounted on the machine frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1) The engine camshaft housing rocker arm seat press-fitting mechanism in this case uses the positioning pin in the pin-pulling assembly to accurately align the camshaft housing and rocker arm seat, achieving a precise and efficient press-fitting effect.

[0012] 2) The engine camshaft housing rocker arm seat pressing mechanism in this case has a guide sleeve in its pin-pulling assembly. The guide sleeve guides the stroke of the positioning pin, prevents the positioning pin from swinging, and further ensures the pressing accuracy and the stability of the mechanism.

[0013] 3) The engine camshaft housing rocker arm seat press-fitting mechanism in this case has a simple structure, low manufacturing cost, and is easy to maintain later.

[0014] To provide a clearer understanding of this invention, the preferred embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a reference diagram showing the usage state of this utility model;

[0017] Figure 3 This is a diagram showing the positional relationship between the pull pin assembly and the clamping plate in this utility model;

[0018] Figure 4 This is a schematic diagram of the pull pin assembly in this utility model.

[0019] Attached image labels:

[0020] 1-Pressure cylinder, 2-Pressure head, 3-Clamping plate, 4-Pin assembly; 5-Camshaft chamber, 6-Rock arm seat; 41-Pin cylinder, 42-Fixed seat, 43-Positioning pin, 44-Guide sleeve; 421-Seat plate, 422-Clamping plate. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Please also refer to Figure 1-4 This utility model provides a pressing mechanism for a rocker arm seat in an engine camshaft housing, including a pressing cylinder 1, a pressing head 2, a clamping plate 3, and a pin-pulling assembly 4 arranged sequentially in an upper and lower configuration. The output end of the pressing cylinder 1 is mounted on and drives the pressing head 2 via a connecting seat. The camshaft housing 5 to be pressed is placed and positioned on the clamping plate 3. The rocker arm seat 6 to be pressed is placed on the camshaft housing 5 via an external connecting piece. The positioning pin 43 in the pin-pulling assembly 4 can pass through the corresponding through hole on the clamping plate 3 and be inserted into the corresponding assembly hole of the camshaft housing 5. The positioning pin 43 in the pin-pulling assembly 4 positions and aligns the camshaft housing 5 and the rocker arm seat 6. The pressing cylinder 1 drives the pressing head 2 to press down, which can accurately align and press the hollow pin on the rocker arm seat 6 into the corresponding assembly hole of the camshaft housing 5.

[0025] The pin-pulling assembly 4 includes a pin-pulling cylinder 41, a fixed seat 42, a locating pin 43, and a guide sleeve 44. The fixed seat 42 is installed at the output end of the pin-pulling cylinder 41 and is driven by the pin-pulling cylinder 41. The locating pin 43 is fixedly installed on the fixed seat 42. The guide sleeve 44 is sleeved in the corresponding through hole of the fixture plate 3. The locating pin 43 can pass through the guide sleeve 44 and extend into the assembly hole of the camshaft chamber 5.

[0026] Furthermore, the fixed base 42 includes a base plate 421 and a clamping plate 422 mounted on the bottom surface of the base plate 421. The clamping plate 422 is fixedly connected to the output shaft of the pin-pulling cylinder 41 by a connector.

[0027] Preferably, in this embodiment, two positioning pins 43 are provided. The two positioning pins 43 are fixedly arranged side by side on the top surface of the fixing base 42, and the distance between the two positioning pins 43 corresponds to the through hole on the clamp plate 3.

[0028] Preferably, in this embodiment, the pressing cylinder 1, the clamping plate 3, and the pin-pulling cylinder 41 are all fixedly installed on the frame.

[0029] The working principle of the engine camshaft housing rocker arm seat press-fitting mechanism in this case is as follows:

[0030] 1. Position and install the camshaft chamber 5 on the fixture plate 3, and place the rocker arm seat 6 on the camshaft chamber 5;

[0031] 2. The cylinder 41 is activated and drives the positioning pin 43 to rise. The positioning pin 43 passes through the guide sleeve 44 in the through hole of the fixture plate 3 and is inserted into the corresponding assembly hole of the camshaft chamber 5.

[0032] 3. Position the hollow pin of the rocker arm seat 6 onto the positioning pin 43, so that the rocker arm seat 6 and the camshaft chamber 5 are aligned.

[0033] 4. Press cylinder 1 starts and drives press head 2 to press down, pressing rocker arm seat 6 into the camshaft chamber 5, thus completing the press operation;

[0034] 5. Pressing cylinder 1 drives pressing head 2 to reset, and pin-pulling cylinder 41 drives positioning pin 43 to reset.

[0035] Compared to existing technologies, the engine camshaft housing rocker arm seat press-fitting mechanism in this case uses the positioning pin in the pin-pulling assembly to precisely align the holes of the camshaft housing and the rocker arm seat, achieving a precise and efficient press-fitting effect.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A rocker arm seat press-fitting mechanism for an engine camshaft housing, characterized in that: The assembly includes a pressing cylinder (1), a pressing head (2), a clamping plate (3), and a pin-pulling assembly (4) arranged sequentially in an upper and lower alignment. The output end of the pressing cylinder (1) is mounted on and drives the pressing head (2) through a connecting seat. The clamping plate (3) is placed and positioned to press the camshaft chamber (5). The rocker arm seat (6) to be pressed is placed on the camshaft chamber (5) through an external connector. The positioning pin (43) in the pin-pulling assembly (4) can pass through the corresponding through hole on the clamping plate (3) and be inserted into the corresponding assembly hole of the camshaft chamber (5). The pressing cylinder (1) drives the pressing head (2) to press down, which can press the hollow pin on the rocker arm seat (6) into the corresponding assembly hole of the camshaft chamber (5). The pin-pulling assembly (4) includes a pin-pulling cylinder (41), a fixed seat (42), a positioning pin (43), and a guide sleeve (44). The fixed seat (42) is installed at the output end of the pin-pulling cylinder (41) and driven by the pin-pulling cylinder (41). The positioning pin (43) is fixedly installed on the top surface of the fixed seat (42). The guide sleeve (44) is sleeved in the corresponding through hole of the fixture plate (3). The positioning pin (43) can pass through the guide sleeve (44) and extend into the assembly hole of the camshaft chamber (5).

2. The engine camshaft housing rocker arm seat press-fitting mechanism according to claim 1, characterized in that: The fixed base (42) includes a base plate (421) and a clamping plate (422) installed on the bottom surface of the base plate (421). The clamping plate (422) is fixedly connected to the output shaft of the pin-pulling cylinder (41) by a connector.

3. The engine camshaft housing rocker arm seat press-fitting mechanism according to claim 2, characterized in that: There are two positioning pins (43). The two positioning pins (43) are fixedly arranged side by side on the top surface of the fixed base (42), and the distance between the two positioning pins (43) corresponds to the through hole on the clamp plate (3).

4. The engine camshaft housing rocker arm seat press-fitting mechanism according to claim 3, characterized in that: The press-fit cylinder (1), clamp plate (3) and pin-pulling cylinder (41) are all fixedly installed on the frame.

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