A small engine casing assembly device

Abstract

The present application provides a small engine casing assembly device, belonging to the technical field of engine assembly. The small engine casing assembly device includes a casing assembly. The telescopic rod of the first cylinder is fixedly connected to one end of the movable tray, and the movable pressing plate is movably sleeved on the guiding column and fixedly connected to the top of the telescopic rod of the second cylinder. By setting the movable pressing plate and the movable tray that adopt pneumatic operation, the moving tray can move back and forth on the horizontal plane under the action of the cylinder, meeting the requirement that the working position is outside the top cover plate when placing parts, which is convenient for operation. After the moving tray and the workpiece move backward in place, the pressing operation is carried out, enabling the matching end of the cylinder head main shaft and the engine casing to be quickly aligned, greatly improving the assembly efficiency. By adjusting the telescopic speed of the cylinder telescopic rod, the speed of workpiece movement and the descent of the pressing head can be adjusted, with high assembly precision, and it can meet the pressing of internal parts of the UAV56 casing assembly.

Description

Technical Field

[0001] This application relates to the technical field of engine assembly, and more particularly, to a small engine case assembly device. Background Art

[0002] The UAV56 is a small engine used in the factory, which consists of a case and two cylinder heads. Inside the case, there are components such as a crankshaft and bearings. During the manufacturing process of the engine, the engine case and the cylinder head need to be assembled first, and then other auxiliary components are further assembled to form a power assembly. The difficulty in assembling the case and the cylinder head lies in the alignment of the front main shafts of the two cylinder heads with the matching ends of the engine case. Most traditional methods for assembling the engine case and the cylinder head use a sling-assisted assembly method, that is, the engine case is supported and placed on the fixture support points of the subassembly line, and the cylinder head is lifted by a sling. During the lifting process, the swaying cylinder head is adjusted to align the height and angle of the assembly with the engine case, so as to complete the alignment of the main shaft of the cylinder head with the matching end of the engine case. This method has poor assembly accuracy and safety. It requires multiple adjustments using the sling, which is time-consuming and laborious. At the same time, it has high skill requirements for operators, low assembly efficiency, poor assembly quality, and there are relatively large safety hazards. Summary of the Invention

[0003] In order to make up for the above deficiencies, this application provides a small engine case assembly device, aiming to improve the problems of low assembly accuracy and poor safety in the traditional method of assembling the engine case and the cylinder head.

[0004] An embodiment of this application provides a small engine case assembly device, including a case assembly component.

[0005] The case assembly component includes a bottom plate, a guide rail, a movable tray, a first cylinder, a second cylinder, a movable pressure plate, a guide post, a top cover plate, and an air source triple unit. The guide rail is fixedly installed on the top of the bottom plate. The movable tray is fixedly connected to the top of the slider of the guide rail. The first cylinder is fixedly installed on the bottom plate, and the telescopic rod of the first cylinder is fixedly connected to one end of the movable tray. The second cylinder and the guide post are both fixedly installed on the bottom plate. The movable pressure plate is movably sleeved on the guide post and fixedly connected to the top of the telescopic rod of the second cylinder. A pressure head is fixedly installed at the bottom of the movable pressure plate. The top cover plate is fixedly installed on the top of the guide post. The air source triple unit is fixedly connected to one side of the top cover plate. A hand-operated valve and a speed control valve are fixedly installed on the top of the top cover plate. The speed control valve is communicated with the hand-operated valve. A pipe joint is arranged on the top of the top cover plate.

[0006] In the above implementation process, a movable tray driven by a cylinder and a guide rail is arranged on the bottom plate, and a movable pressure plate with a pressure head installed is arranged below the top cover plate. Both the movable pressure plate and the movable tray use pneumatic operation. Under the action of the cylinder, the movable tray can move back and forth on the horizontal plane, meeting the requirement that the working position is outside the top cover plate when placing parts, which is convenient for operation. After the movable tray and the workpiece move backward in place, the pressing operation is carried out, enabling the main shaft of the cylinder head to be quickly aligned with the matching end of the engine box body, greatly improving the assembly efficiency. By adjusting the telescopic speed of the cylinder telescopic rod, the speeds of the workpiece movement and the pressure head descent are adjusted, with high assembly accuracy, and it can meet the pressing requirements of the internal parts of the UAV56 box assembly.

[0007] In a specific implementation scheme, the casing assembly further includes a muffler, and the muffler is communicated with the hand-operated valve.

[0008] In the above implementation process, the hand-operated valve is communicated with a muffler, and the muffler can buffer the airflow of the hand-operated valve exhaust, enabling the airflow to be attenuated in energy after multiple reflections in the muffler, thereby reducing the exhaust noise when the hand-operated valve exhausts.

[0009] In a specific implementation scheme, a text label is integrally arranged on the top surface of the top cover plate.

[0010] In the above implementation process, a text label is arranged on the surface of the top cover plate, and the text label marks the corresponding actions corresponding to the operation directions of the left and right handles of the hand-operated valve, thus facilitating the staff to identify the operation.

[0011] In a specific implementation scheme, a positioning base is arranged on the top of the movable tray, and the positioning base is connected to the movable tray through a positioning pin.

[0012] In the above implementation process, the positioning base positions the parts during the assembly process, serving as the basis for changing the operation of different processes and facilitating the quick change of processes for operation.

[0013] In a specific implementation scheme, a support plate is fixedly installed at one end of the top of the movable tray.

[0014] In the above implementation process, a support plate is arranged on the top of the movable tray, and the support plate supports the piston when the box is closed.

[0015] In a specific implementation scheme, the casing assembly further includes a limit post, and the limit post is fixedly installed on the top of the bottom plate.

[0016] In the above implementation process, the limit post is installed on the bottom plate, and the limit post is used to control the descending height of the movable pressure plate, preventing the over-lifting or over-lowering of the movable pressure plate from causing pressure loss of the second cylinder and resulting in potential safety hazards.

[0017] In a specific embodiment, a stepped stop is provided at the bottom of the indenter.

[0018] In the above implementation process, a stepped stop is provided on the indenter, and the depth of the bearing press-fitting after casing assembly is controlled by the depth of the stepped stop.

[0019] In a specific embodiment, the casing assembly further includes a limit plate, and the limit plate is fixedly installed on one side of the bottom plate.

[0020] In the above implementation process, the limit plate is installed on one side of the bottom plate to limit the movement of the movable tray and prevent the movable tray from disengaging from the guide rail, resulting in abnormal operation of the device.

[0021] In a specific embodiment, a guide sleeve is movably sleeved on the guide post, and the guide sleeve is fixedly connected to the bottom of the movable pressing plate.

[0022] In the above implementation process, a guide sleeve connected to the movable pressing plate is movably sleeved on the guide post, making the process of the movable pressing plate sliding along the guide post more stable, thereby making the assembly accuracy of the device higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic structural diagram of a small engine casing assembly device provided by an embodiment of the present application;

[0025] Figure 2 is a schematic structural diagram of the casing assembly provided by an embodiment of the present application;

[0026] Figure 3 is a top view of the casing assembly provided by an embodiment of the present application;

[0027] Figure 4 is a left view of the casing assembly provided by an embodiment of the present application;

[0028] Figure 5 is a right view of the casing assembly provided by an embodiment of the present application.

[0029] In the figure: 100 - box - combining assembly; 110 - bottom plate; 111 - limit post; 112 - limit plate; 120 - guide rail; 130 - movable tray; 131 - positioning base; 132 - support plate; 140 - first cylinder; 150 - second cylinder; 160 - movable pressure plate; 161 - pressure head; 170 - guide post; 171 - guide sleeve; 180 - top cover plate; 181 - hand - operated valve; 182 - speed - regulating valve; 183 - pipe joint; 184 - muffler; 185 - text label; 190 - air source triple unit. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0032] Please refer to Figure 1 , the present application provides a small - engine box - combining device, including a box - combining assembly 100.

[0033] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 , the box - combining assembly 100 includes a bottom plate 110, a guide rail 120, a movable tray 130, a first cylinder 140, a second cylinder 150, a movable pressure plate 160, a guide post 170, a top cover plate 180 and an air source triple unit 190. The guide rail 120 is fixedly installed on the top of the bottom plate 110. The movable tray 130 is fixedly connected to the top of the slider of the guide rail 120. The first cylinder 140 is fixedly installed on the bottom plate 110, and the telescopic rod of the first cylinder 140 is fixedly connected to one end of the movable tray 130. The second cylinder 150 and the guide post 170 are both fixedly installed on the bottom plate 110. The movable pressure plate 160 is movably sleeved on the guide post 170 and is fixedly connected to the top of the telescopic rod of the second cylinder 150. A pressure head 161 is fixedly installed at the bottom of the movable pressure plate 160. The top cover plate 180 is fixedly installed on the top of the guide post 170. The air source triple unit 190 is fixedly connected to one side of the top cover plate 180. A hand - operated valve 181 and a speed - regulating valve 182 are fixedly installed on the top of the top cover plate 180. The speed - regulating valve 182 is communicated with the hand - operated valve 181. A pipe joint 183 is arranged on the top of the top cover plate 180.

[0034] In some other embodiments, the casing assembly 100 further includes a muffler 184. The muffler 184 is in communication with the hand-operated valve 181. The muffler 184 can buffer the airflow exhausted from the hand-operated valve 181, causing the energy of the airflow to be reduced after multiple reflections in the muffler 184, thereby reducing the exhaust noise when the hand-operated valve 181 exhausts air.

[0035] Please refer to Figure 3 , a text label 185 is integrally provided on the top surface of the top cover plate 180. The text label 185 marks the corresponding actions corresponding to the operation directions of the left and right handles of the hand-operated valve 181, thus facilitating the staff to identify the operation.

[0036] In some other embodiments, a positioning base 131 is provided on the top of the movable tray 130. The positioning base 131 is connected to the movable tray 130 through a positioning pin. The positioning base 131 positions the parts during the assembly process and serves as the basis for model change in the process of changing operations, facilitating the rapid change of operations for different processes.

[0037] In some other embodiments, a support plate 132 is fixedly installed at one end of the top of the movable tray 130. The support plate 132 supports the piston when the box body is closed.

[0038] In some other embodiments, the casing assembly 100 further includes a limit post 111. The limit post 111 is fixedly installed on the top of the bottom plate 110. The limit post 111 is used to control the descending height of the movable pressure plate 160 and prevent the over-lifting or over-lowering of the movable pressure plate 160 from causing pressure loss of the second cylinder 150 and resulting in potential safety hazards.

[0039] In some other embodiments, a stepped stop is provided at the bottom of the pressure head 161, and the depth of the stepped stop is used to control the depth of bearing press-fitting after casing assembly.

[0040] In some other embodiments, the casing assembly 100 further includes a limit plate 112. The limit plate 112 is fixedly installed on one side of the bottom plate 110 and is used to limit the movement of the movable tray 130 to prevent the movable tray 130 from disengaging from the guide rail 120 and causing abnormal operation of the device.

[0041] In some other embodiments, a guide sleeve 171 is movably sleeved on the guide post 170. The guide sleeve 171 is fixedly connected to the bottom of the movable pressure plate 160, making the process of the movable pressure plate 160 sliding along the guide post 170 more stable, thereby making the assembly accuracy of the device higher.

[0042] Working principle of the small engine casing assembling device: A first cylinder 140 and a guide rail 120 are installed on a bottom plate 110. A movable tray 130 is driven by the first cylinder 140 to slide on the guide rail 120, so that the movable tray 130 moves back and forth on the horizontal plane of the bottom plate 110. When placing parts, the working position is outside the top cover plate 180. Moving the movable tray 130 drives the workpiece to be positioned for pressing operation. A pressure head 161 is installed at the bottom of a movable pressure plate 160. The movable pressure plate 160 is driven by a second cylinder 150. The movable pressure plate 160 moves up and down along a guide post 170 through four guide sleeves 171. The telescopic speeds of the telescopic rods of the first cylinder 140 and the second cylinder 150 are adjusted through a hand-operated valve 181 and a speed regulating valve 182, so as to adjust the speed at which the movable tray 130 drives the workpiece to move and the speed at which the pressure head 161 descends. An air source triple unit 190 provides a power source for the first cylinder 140 and the second cylinder 150.

[0043] It should be noted that the specific model specifications of the first cylinder 140, the second cylinder 150, the hand-operated valve 181, the speed regulating valve 182 and the air source triple unit 190 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0044] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. 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. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A small engine casing assembly device, characterized in that, Including a case assembling component (100), the case assembling component (100) includes a bottom plate (110), guide rails (120), a movable tray (130), a first cylinder (140), a second cylinder (150), a movable pressing plate (160), guide posts (170), a top cover plate (180) and an air source triple unit (190), the guide rails (120) are fixedly installed on the top of the bottom plate (110), the movable tray (130) is fixedly connected to the top of the slider of the guide rails (120), the first cylinder (140) is fixedly installed on the bottom plate (110), the telescopic rod of the first cylinder (140) is fixedly connected to one end of the movable tray (130), the second cylinder (150) and the guide posts (170) are both fixedly installed on the bottom plate (110), the movable pressing plate (160) is movably sleeved on the guide posts (170) and is fixedly connected to the top of the telescopic rod of the second cylinder (150), a pressing head (161) is fixedly installed at the bottom of the movable pressing plate (160), the top cover plate (180) is fixedly installed on the top of the guide posts (170), the air source triple unit (190) is fixedly connected to one side of the top cover plate (180), a hand-operated valve (181) and a speed regulating valve (182) are fixedly installed on the top of the top cover plate (180), the speed regulating valve (182) is communicated with the hand-operated valve (181), and a pipe joint (183) is arranged on the top of the top cover plate (180); wherein, the case assembling component (100) further includes a muffler (184), and the muffler (184) is communicated with the hand-operated valve (181); a text mark (185) is integrally arranged on the top surface of the top cover plate (180).

2. The small engine casing assembling device according to claim 1, wherein, a positioning base (131) is arranged on the top of the movable tray (130), and the positioning base (131) is connected to the movable tray (130) through a positioning pin.

3. A small engine casing assembly device according to claim 1, characterized in that a support plate (132) is fixedly installed at one end of the top of the movable tray (130).

4. A small engine casing assembly device according to claim 1, characterized in that, the case assembling component (100) further includes a limit post (111), and the limit post (111) is fixedly installed on the top of the bottom plate (110).

5. The mating device for small engines according to claim 1, characterized in that, a stepped stop is arranged at the bottom of the pressing head (161).

6. The small engine casing assembly device according to claim 1, characterized in that, the case assembling component (100) further includes a limit plate (112), and the limit plate (112) is fixedly installed on one side of the bottom plate (110).

7. A small engine casing assembly device according to claim 1, characterized in that, a guide sleeve (171) is movably sleeved on the guide post (170), and the guide sleeve (171) is fixedly connected to the bottom of the movable pressing plate (160).

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