Automatic installation device for engine bearing shells

Abstract

The present invention discloses an automatic installation device for engine bearing shells. The device includes a main substrate (1), a movable substrate (2), a telescopic drive cylinder (3), a clamping drive cylinder (12), a slide rail mechanism (6), a guide block (9), a clamping plate, and a spring-type pressing block mechanism; the movable substrate is installed on the main substrate through the slide rail mechanism; the telescopic head of the telescopic drive cylinder is connected to the movable substrate; a fixed clamping plate (21) is fixedly connected to the movable substrate, and a movable clamping plate (22) is fixedly installed on the movable clamping arm of the clamping drive cylinder; the spring-type pressing block mechanism includes a mechanism body (23), a spring (26), and two pressing blocks (25); under the action of the spring, the two pressing blocks respectively extend out of the open ends of the chute (24); the guiding surface of the guide block faces the open end of the chute; the pressing blocks extending out of the open end of the chute abut against the guiding surface of the guide block. The installation device of the present invention can realize the automatic installation of the bearing shell into the engine bearing seat.

Description

Technical Field

[0001] The present invention relates to an engine mounting device, and particularly to an automatic engine bearing shell mounting device. Background Art

[0002] A bearing shell is the part of a sliding bearing that contacts the journal, with a shape of a semi-cylindrical surface like a tile, having a very smooth surface and very high precision.

[0003] The bearing shell that bears the main shaft on an engine is called the main bearing shell. Currently, the process of installing the main bearing shell onto the main bearing shell seat of an engine adopts a manual installation method. The disadvantages of this manual installation method of the main bearing shell include: Disadvantage 1, the operation of the operator is not standardized during the installation process, which easily causes scratches on the surface of the bearing shell; Disadvantage 2, the installation precision of the bearing shell is uncontrollable, resulting in low installation precision of the bearing shell; Disadvantage 3, the manual operation efficiency is low and the labor cost is high.

[0004] In summary, there is currently no device for automatically installing the main bearing shell onto an engine, which results in the surface of the bearing shell being easily scratched, low installation precision of the bearing shell, and low operation efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic engine bearing shell mounting device, which can automatically install the bearing shell into the engine bearing shell seat, thereby ensuring the installation quality of the bearing shell and improving the operation efficiency of installing the bearing shell.

[0006] To achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] An automatic installation device for engine bearing shells, comprising a main substrate, a movable substrate, a telescopic driving cylinder, a clamping driving cylinder, a slide rail mechanism, a guide block, a clamping plate and a spring-type pressing block mechanism; the movable substrate is installed on the main substrate through the slide rail mechanism; the telescopic driving cylinder is installed on the main substrate, and the telescopic head of the telescopic driving cylinder is connected with the movable substrate; the clamping driving cylinder is installed on the movable substrate; the number of the clamping plates is two, and the two clamping plates are respectively a fixed clamping plate and a movable clamping plate. The fixed clamping plate is fixedly connected with the movable substrate, and the movable clamping plate is fixedly installed on the movable clamping arm of the clamping driving cylinder. The fixed clamping plate and the movable clamping plate are parallel to each other, and the area between the fixed clamping plate and the movable clamping plate is the bearing shell accommodating area; the spring-type pressing block mechanism is arranged above the bearing shell accommodating area, and the spring-type pressing block mechanism comprises a mechanism body, a spring and two pressing blocks; the mechanism body is fixedly connected to the movable substrate, and a chute with both ends open is formed on one side of the mechanism body facing the bearing shell accommodating area; the chute is a reverse-width groove type, the pressing block is a reverse-width configuration, the pressing block is embedded in the chute of the mechanism body, and the reverse-width configuration of the pressing block matches the reverse-width groove type of the chute. The pressing block is restricted in the chute and is in sliding fit with the chute; the spring is arranged between the two pressing blocks, and under the action of the spring, the two pressing blocks respectively extend out of the open ends at both ends of the chute; the number of the guide blocks is two, one side of the guide block is a guide surface, the two guide blocks are both fixedly installed on the main substrate, and the two guide blocks are respectively located at the open ends of the chute of the mechanism body of the spring-type pressing block mechanism at both ends. The guide surfaces of the two guide blocks face the open ends of the chute, and the guide surfaces of the two guide blocks are in a reverse taper; the two pressing blocks extending out of the open ends at both ends of the chute respectively abut against the guide surfaces of the two guide blocks.

[0008] Further, the installation device further comprises a connecting plate, the connecting plate is fixedly connected with the movable substrate, and the telescopic head of the telescopic driving cylinder is connected with the movable substrate through the connecting plate.

[0009] Further, the installation device further comprises a limiting component, the limiting component is provided with an upper limit end and a lower limit end, there is a space between the upper limit end and the lower limit end of the limiting component, and the connection line between the upper limit end and the lower limit end of the limiting component is parallel to the sliding direction of the slide rail mechanism; the connecting plate is located between the upper limit end and the lower limit end of the limiting component.

[0010] Further, the telescopic driving cylinder is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

[0011] Further, the clamping driving cylinder is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

[0012] The installation device of the present invention is usually installed on the execution end of the robot arm, and then the robot arm drives the installation device to install the bearing shell onto the bearing shell seat of the engine. The specific installation process is as follows: Place the bearing shell in the bearing shell accommodation area between the fixed clamping plate and the movable clamping plate, with the inner arc surface of the bearing shell facing the installation device. The clamping drive cylinder drives the movable clamping plate to move towards the fixed clamping plate and clamp and position the bearing shell. The robot arm drives the installation device and the bearing shell above the engine bearing shell seat. The telescopic drive cylinder drives the entire movable substrate to move downward. The pressing blocks protruding from both ends of the spring-type pressing block mechanism press against both ends of the bearing shell and press the bearing shell downward. During the process of pressing down the bearing shell, the inverted taper guiding surfaces of the two guiding blocks force both ends of the bearing shell to converge towards the inner arc surface, and the pressing blocks protruding from both ends of the spring-type pressing block mechanism also contract along with the inverted taper guiding surfaces of the two guiding blocks until the bearing shell is completely pressed into the engine bearing shell seat. After that, both ends of the bearing shell are separated from the two guiding blocks. The clamping drive cylinder drives the movable clamping plate to move away from the fixed clamping plate. The telescopic drive cylinder drives the entire movable substrate to move upward. The robot arm drives the installation device away from the engine bearing shell seat. Thus, the installation process of one bearing shell is completed.

[0013] Compared with the prior art, the installation device of the present invention has the following advantages: The clamping drive cylinder, the movable clamping plate, and the fixed clamping plate clamp and position the bearing shell. The telescopic drive cylinder drives the movable substrate to move downward, and the pressing blocks in the spring-type pressing block mechanism at the lower end of the movable substrate can press the bearing shell into the engine bearing shell seat. During the process of pressing down the bearing shell, the two guiding blocks can force both ends of the bearing shell to converge towards the inner arc surface, thereby realizing the automatic installation process of installing the bearing shell into the engine bearing shell seat, avoiding the situation that the bearing shell is scratched and damaged, improving the installation accuracy of the bearing shell, ensuring the installation quality of the bearing shell, and at the same time improving the operation efficiency of installing the bearing shell and reducing the labor cost. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the automatic installation device of the engine bearing shell of the present invention;

[0015] Figure 2 is an exploded view of the installation device of the present invention;

[0016] Figure 3 is a schematic structural diagram of the spring-type pressing block mechanism arranged at the lower part of the movable substrate in the installation device of the present invention;

[0017] Figure 4 is a schematic diagram of the installation device of the present invention installing the bearing shell onto the engine bearing shell seat. In this figure, the bearing shell has not been installed into the bearing shell seat yet;

[0018] Figure 5 is a schematic diagram of the installation device of the present invention installing the bearing shell onto the engine bearing shell seat. In this figure, the bearing shell has already been installed into the bearing shell seat;

[0019] Figure 6 is Figure 5 an enlarged view of the area indicated by arrow A in

[0020] In the figure: 1 - main substrate, 2 - movable substrate, 3 - telescopic drive cylinder, 4 - drive cylinder mounting plate, 6 - slide rail mechanism, 7 - limit member, 71 - upper limit end, 72 - lower limit end, 8 - connecting plate, 9 - guide block, 12 - clamping drive cylinder, 121 - fixed clamping arm, 122 - movable clamping arm, 20 - spring - type pressing block mechanism, 21 - fixed clamping plate, 22 - movable clamping plate, 23 - mechanism body, 24 - chute, 25 - pressing block, 26 - spring, 35 - transition connecting plate, 36 - bearing shell, 40 - engine, 41 - bearing shell seat. Specific embodiments

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] Refer to Figures 1 to 6 , this embodiment provides an automatic installation device for engine bearing shells, which can automatically install the bearing shells into the bearing shell seats 41 of the engine 40.

[0023] Refer to Figure 1 and Figure 2 , the installation device of this embodiment includes a main substrate 1, a movable substrate 2, a telescopic drive cylinder 3, a clamping drive cylinder 12, a slide rail mechanism 6, a connecting plate 8, a guide block 9, clamping plates and a spring - type pressing block mechanism 20.

[0024] The movable substrate 2 is installed on the main substrate 1 through the slide rail mechanism 6. When using the installation device of this embodiment to install the bearing shell 36, the sliding direction of the slide rail mechanism 6 is the vertical direction, and the movable substrate 2 can slide up and down on the main substrate 1 through the slide rail mechanism 6.

[0025] It should be noted that in this embodiment, the slide rail mechanism 6 adopted is a slide rail mechanism of the prior art. Specifically, the slide rail mechanism 6 includes a slide rail and a slider. A chute is provided on the slider, and the slide rail is embedded in the chute of the slider, and the slide rail and the slider are in sliding fit. In this embodiment, the slide rail is fixedly connected to the main substrate 1, and the slider is fixedly connected to the movable substrate 2, so as to realize the installation of the movable substrate 2 on the main substrate 1 through the slide rail mechanism 6. In other embodiments, other forms of slide rail mechanisms can also be adopted as long as the movable substrate 2 can slide up and down on the main substrate 1.

[0026] The telescopic driving cylinder 3 is mounted on the main substrate 1 through a driving cylinder mounting plate 4. The telescopic driving direction of the telescopic driving cylinder 3 is parallel to the sliding direction of the slide rail mechanism 6. The telescopic head of the telescopic driving cylinder 3 is connected to the movable substrate 2 through a connecting plate 8, and the telescopic driving cylinder 3 can drive the movable substrate 2 to slide up and down on the main substrate 1. In other embodiments, the telescopic head of the telescopic driving cylinder 3 is not limited to being connected to the movable substrate 2 through the connecting plate 8, and can also be connected to the movable substrate 2 in other forms. For example, the telescopic head of the telescopic driving cylinder 3 can be directly connected to the movable substrate 2, as long as it can drive the movable substrate 2 to slide on the main substrate 1 along the sliding direction of the slide rail mechanism 6.

[0027] The clamping driving cylinder 12 is mounted at the lower end of the movable substrate 2. It should be noted that the clamping driving cylinder 12 adopts a device of the prior art. Two clamping arms are provided on the clamping driving cylinder 12, namely a fixed clamping arm 121 and a movable clamping arm 122. The fixed clamping arm 121 is fixedly connected to the cylinder block of the clamping driving cylinder 12, and the movable clamping arm 122 is fixedly connected to the telescopic head of the clamping driving cylinder 12. When the telescopic head of the clamping driving cylinder 12 expands and contracts, the movable clamping arm 122 can perform the actions of releasing or clamping relative to the fixed clamping arm 121.

[0028] A cross bar extends from the lower end of the movable substrate 2 toward the side where the clamping driving cylinder 12 is located, as Figure 2 indicated by the arrow B. This cross bar is located below the clamping driving cylinder 12, and the two clamping arms of the clamping driving cylinder 12 straddle both sides of the cross bar.

[0029] See Figure 1 and Figure 2 , the number of the clamping plates is two, and the two clamping plates are a fixed clamping plate 21 and a movable clamping plate 22 respectively. The fixed clamping plate 21 is fixedly connected to the cross bar extending from the lower end of the movable substrate 2, and the movable clamping plate 22 is fixedly mounted on the movable clamping arm 122 of the clamping driving cylinder 12. The fixed clamping plate 21 and the movable clamping plate 22 are parallel to each other, and both the fixed clamping plate 21 and the movable clamping plate 22 are parallel to the sliding direction of the slide rail mechanism 6. The area between the fixed clamping plate 21 and the movable clamping plate 22 is a bearing shell accommodating area, and this bearing shell accommodating area is used to accommodate the bearing shell 36 to be installed on the engine. The cross bar at the lower end of the movable substrate 2 is located between the fixed clamping plate 21 and the movable clamping plate 22 and above the bearing shell accommodating area.

[0030] The clamping moving direction of the movable clamping arm 122 of the clamping driving cylinder 12 is perpendicular to the fixed clamping plate 21 and the movable clamping plate 22, and the clamping driving cylinder 12 can drive the movable clamping plate 22 to clamp or release toward the fixed clamping plate 21. In this embodiment, only the movable clamping arm 122 of the clamping driving cylinder 12 is used, and the fixed clamping arm 121 is not used. The fixed clamping arm 121 of the clamping driving cylinder 12 is in a suspended state.

[0031] See Figure 1 、 Figure 2 and Figure 3 , the spring - type pressing block mechanism 20 is arranged above the bearing shell accommodating area. The spring - type pressing block mechanism 20 includes a mechanism body 23, a spring 26 and two pressing blocks 25.

[0032] In this embodiment, the mechanism body 23 is composed of a part of the movable substrate 2. Specifically, it is composed of a cross - bar extending from the lower end of the previously mentioned movable substrate 2. In other embodiments, the mechanism body 23 can also be an independent component and then fixedly connected to the movable substrate 2.

[0033] See Figure 3 , a chute 24 with both ends open is formed on one side of the mechanism body 23 facing the bearing shell accommodating area. The central axis of the chute 24 is perpendicular to the sliding direction of the slide - rail mechanism 6 and parallel to the two clamping plates. It should be noted that the term "both ends open" means that both ends of the chute 24 extend to the end faces of the mechanism body 23 all the time, and both ends of the chute 24 are straight through.

[0034] The chute 24 is of an inverted - width groove type, and the pressing block 25 is of an inverted - width configuration. The pressing block 25 is embedded in the chute 24 of the mechanism body 23. The inverted - width configuration of the pressing block 25 matches the inverted - width groove type of the chute 24 of the mechanism body 23. The pressing block 25 is restricted in the chute 24 and is in sliding fit with the chute 24.

[0035] It should be noted that the inverted - width groove type of the chute 24 means that the width at the notch of the chute 24 is smaller than the width at the widest part inside the chute 24. The inverted - width configuration of the pressing block 25 means that the width at the part where the pressing block 25 cooperates with the notch of the chute 24 is smaller than the width at the widest part of the pressing block 25. When the pressing block 25 is embedded in the chute 24 of the mechanism body 23, the pressing block 25 is restricted in the chute 24.

[0036] The spring 26 is arranged between the two pressing blocks 25. Under the action of the spring 26, the two pressing blocks 25 can respectively extend out of the open ends at both ends of the chute 24.

[0037] See Figure 1 and Figure 2 , the number of the guiding blocks 9 is two. One side of the guiding block 9 is a guiding surface. The two guiding blocks 9 are both fixedly installed on the main substrate 1. The two guiding blocks 9 are respectively located at the open ends at both ends of the chute 24 of the mechanism body 23 of the spring - type pressing block mechanism 20. The guiding surfaces of the two guiding blocks 9 face the open ends of the chute 24. The guiding surfaces of the two guiding blocks 9 and the two clamping plates enclose the bearing shell accommodating area together. The two pressing blocks 25 extending out of the open ends at both ends of the chute 24 respectively abut against the guiding surfaces of the two guiding blocks 9. The guiding surfaces of the two guiding blocks 9 are of an inverted taper.

[0038] See Figure 1 and Figure 2 Preferably, the mounting device of the present embodiment further includes a limiting member 7. The limiting member 7 has a "C" - shaped structure. An upper limit end 71 is provided on the upper cross - bar of the limiting member 7, and a lower limit end 72 is provided on the lower cross - bar of the limiting member 7. There is a space between the upper limit end 71 and the lower limit end 72 of the limiting member 7. The connection line between the upper limit end 71 and the lower limit end 72 is parallel to the sliding direction of the slide - rail mechanism 6. The connecting plate 8 is located between the upper limit end 71 and the lower limit end 72 of the limiting member 7. The limiting member 7 can directly limit the up - and - down stroke position of the connecting plate 8, thereby indirectly limiting the up - and - down movement stroke of the movable substrate 2.

[0039] See Figure 1 and Figure 2 The mounting device of the present embodiment further includes a transition connecting plate 35. The transition connecting plate 35 is fixedly connected to the side surface of the main substrate 1. The mounting device of the present embodiment is mounted on the execution end of the robot arm through the transition connecting plate 35, and then the robot arm drives the mounting device to install the bearing shell 36 onto the bearing seat of the engine.

[0040] See Figure 4 、 Figure 5 and Figure 6 The process of installing the bearing shell 36 using the mounting device of the present embodiment is as follows: Place the bearing shell 36 in the bearing - shell accommodating area between the fixed clamping plate 21 and the movable clamping plate 22. The inner arc surface of the bearing shell 36 faces the mounting device. The clamping drive cylinder 12 drives the movable clamping plate 22 to move towards the fixed clamping plate 21 and clamp and position the bearing shell 36. The robot arm drives the mounting device and the bearing shell 36 above the bearing seat 41 of the engine 40 (the robot arm is not shown in the figure). As shown in Figure 4 , the telescopic drive cylinder 3 drives the whole movable substrate 2 to move downward. The pressing blocks 25 protruding from both ends of the spring - type pressing block mechanism 20 press against both ends of the bearing shell 36 and press the bearing shell 36 downward. As shown in Figure 6 (only one end of the pressing block 25 is shown in Figure 6 ), during the process of pressing the bearing shell 36 downward, the inverted - taper guide surfaces of the two guide blocks 9 force both ends of the bearing shell 36 to converge towards the inner arc surface. The pressing blocks 25 protruding from both ends of the spring - type pressing block mechanism 20 also contract along with the inverted - taper guide surfaces of the two guide blocks 9. When the connecting plate 8 reaches the lower limit end 72 of the limiting member 7, the bearing shell 36 is completely pressed onto the bearing seat 41 of the engine 40, and both ends of the bearing shell 36 are separated from the two guide blocks 9. As shown in Figure 5As shown, the clamping drive cylinder 12 drives the movable clamping plate 22 to move away from the fixed clamping plate 21, and the telescopic drive cylinder 3 drives the movable base plate 2 to move upward as a whole. The robotic arm drives the installation device away from the bearing block 41 of the engine 40 shaft. Thus, the installation process of one bearing shell 36 is completed.

[0041] In addition, in other embodiments, the installation device is not limited to being installed on the robotic arm, and can also be installed on other mechanical drive mechanisms.

[0042] Compared with the manual installation method in the prior art, the advantages of the installation device in this embodiment are as follows: in the installation device of this embodiment, the clamping drive cylinder 12, the movable clamping plate 22 and the fixed clamping plate 21 can clamp and position the bearing shell 36. The telescopic drive cylinder 3 drives the movable base plate 2 to move downward, and the pressing block 25 in the spring type pressing block mechanism 20 at the lower end of the movable base plate 2 can press the bearing shell 36 into the bearing block 41 of the engine 40. During the process of pressing down the bearing shell 36, the two guiding blocks 9 can force the two ends of the bearing shell 36 to converge towards the inner arc surface, thereby realizing the automatic installation process of installing the bearing shell 36 into the bearing block 41 of the engine 40, further avoiding the situation that the bearing shell 36 is scratched by the bearing block 41, improving the installation accuracy of the bearing shell 36, ensuring the installation quality of the bearing shell 36, and at the same time improving the operation efficiency of installing the bearing shell 36 and reducing the labor cost.

[0043] It should be noted that the bearing shell 36 in this embodiment is the main bearing shell of the engine 40.

[0044] In this embodiment, the telescopic drive cylinder 3 is a pneumatic cylinder, while in other embodiments, the telescopic drive cylinder 3 can also be an electric cylinder or a hydraulic cylinder.

[0045] In this embodiment, the clamping drive cylinder 12 is a pneumatic cylinder, while in other embodiments, the clamping drive cylinder 12 can also be an electric cylinder or a hydraulic cylinder.

[0046] The above are only the preferred embodiments of the present invention, and are not used to limit the protection scope of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic installation device for engine bearing shells, characterized in that: It includes a main substrate (1), a movable substrate (2), a telescopic driving cylinder (3), a clamping driving cylinder (12), a slide rail mechanism (6), a guide block (9), a clamping plate and a spring type pressing block mechanism (20); The movable substrate (2) is installed on the main substrate (1) through the slide rail mechanism (6); The telescopic driving cylinder (3) is installed on the main substrate (1), and the telescopic head of the telescopic driving cylinder (3) is connected to the movable substrate (2); The clamping driving cylinder (12) is installed on the movable substrate (2); The number of the clamping plates is two, and the two clamping plates are a fixed clamping plate (21) and a movable clamping plate (22) respectively. The fixed clamping plate (21) is fixedly connected to the movable substrate (2), and the movable clamping plate (22) is fixedly installed on the movable clamping arm of the clamping driving cylinder (12). The fixed clamping plate (21) and the movable clamping plate (22) are parallel to each other, and the area between the fixed clamping plate (21) and the movable clamping plate (22) is a bearing shell accommodating area; The spring type pressing block mechanism (20) is arranged above the bearing shell accommodating area. The spring type pressing block mechanism (20) includes a mechanism body (23), a spring (26) and two pressing blocks (25); The mechanism body (23) is fixedly connected to the movable substrate (2), and a chute (24) with both ends open is arranged on one side of the mechanism body (23) facing the bearing shell accommodating area; The chute (24) is an inverted width groove type, and the pressing block (25) is an inverted width configuration. The pressing block (25) is embedded in the chute (24) of the mechanism body (23). The inverted width configuration of the pressing block (25) matches the inverted width groove type of the chute (24). The pressing block (25) is restricted in the chute (24) and is in sliding fit with the chute (24); The spring (26) is arranged between the two pressing blocks (25). Under the action of the spring (26), the two pressing blocks (25) respectively extend out of the open ends of both ends of the chute (24); The number of the guide blocks (9) is two. One side surface of the guide block (9) is a guide surface. The two guide blocks (9) are both fixedly installed on the main substrate (1). The two guide blocks (9) are respectively located at the open ends of both ends of the chute (24) of the mechanism body (23) of the spring type pressing block mechanism (20). The guide surfaces of the two guide blocks (9) both face the open ends of the chute (24), and the guide surfaces of the two guide blocks (9) are in an inverted taper; The two pressing blocks (25) extending out of the open ends of both ends of the chute (24) respectively abut against the guide surfaces of the two guide blocks (9).

2. The automatic engine bearing installation device according to claim 1, characterized in that: The installation device further includes a connecting plate (8). The connecting plate (8) is fixedly connected to the movable substrate (2), and the telescopic head of the telescopic driving cylinder (3) is connected to the movable substrate (2) through the connecting plate (8).

3. The automatic engine bearing installation device according to claim 2, characterized in that: The installation device further includes a limiting member (7). An upper limit end (71) and a lower limit end (72) are provided on the limiting member (7). There is a space between the upper limit end (71) and the lower limit end (72) of the limiting member (7). The connection line between the upper limit end (71) and the lower limit end (72) of the limiting member (7) is parallel to the sliding direction of the sliding rail mechanism (6); the connecting plate (8) is located between the upper limit end (71) and the lower limit end (72) of the limiting member (7).

4. The automatic engine bearing installation device according to claim 1, characterized in that: The telescopic driving cylinder (3) is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

5. The automatic engine bearing installation device according to claim 1, wherein: The clamping driving cylinder (12) is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

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