Automatic cylinder head assembling device for diesel engine

Abstract

The invention is applicable to the technical field of diesel engine assembly, and provides an automatic cylinder head assembly device for a diesel engine, which comprises a conveying mechanism, a diesel engine assembly and an auxiliary assembly arranged at the top of the conveying mechanism, a cleaning assembly mounted on the auxiliary assembly, and an assembly assembly arranged on one side of the conveying mechanism, the diesel engine assembly comprises a diesel engine main body, a cylinder gasket and a cylinder head, a cylinder sleeve and four positioning columns are arranged on one side of the diesel engine main body, and the device solves the problem that the cylinder sleeve is broken due to the fact that the cylinder sleeve deviates to affect assembly of the cylinder gasket and the cylinder head. And the auxiliary cylinder pushes the auxiliary plate to be close to the cylinder gasket, so that the spring rod is inserted into the cylinder sleeve. The adjusting air cylinder extrudes the moving groove to drive the swing arm to enable the two spring rods to be away from each other and attached to the inner wall of the cylinder sleeve, the angle and position of the cylinder sleeve are adjusted, and it is guaranteed that the cylinder gasket and the cylinder head can be correctly placed.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engine assembly, and more specifically, to an automatic cylinder head assembly device for a diesel engine. Background Art

[0002] A diesel engine is an internal combustion engine that generates high temperatures through compressed air, causing the injected diesel to self-ignite, pushing the piston to do work, and converting chemical energy into mechanical energy. It has high thermal efficiency, high torque, and strong durability, and is widely used in trucks, ships, generators, and construction machinery. The diesel engine cylinder head, also called the cylinder head, is one of the key components of a diesel engine.

[0003] When assembling the diesel engine cylinder head to the diesel engine body, manual assembly is generally adopted, that is, first placing the cylinder gasket on the diesel engine body, and then placing the diesel engine cylinder head to the cylinder gasket position, and then fixing the cylinder head to the diesel engine body with screws. However, this method is cumbersome to operate and requires workers to carry the cylinder head, which affects the assembly efficiency. The staff has made improvements to the existing assembly placement and improved the installation method to automated installation to improve assembly efficiency.

[0004] However, during the assembly process of the diesel engine, the cylinder liner will shift. If it is not adjusted before placing the cylinder gasket, it may cause mutual squeezing force between the cylinder liner and the cylinder gasket. In this case, forcibly assembling the cylinder head will not only damage the sealing performance of the cylinder gasket, but may also further aggravate the stress on the cylinder liner, and eventually cause the cylinder liner to rupture. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide an automatic cylinder head assembly device for a diesel engine.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an automatic assembly device for a cylinder head of a diesel engine, comprising a conveying mechanism, a diesel engine component and an auxiliary component arranged on the top of the conveying mechanism, a cleaning component installed on the auxiliary component, and an assembly component arranged on one side of the conveying mechanism.

[0007] The diesel engine assembly comprises a diesel engine body, a cylinder gasket and a cylinder head. A cylinder sleeve and four positioning columns are arranged on one side of the diesel engine body.

[0008] The auxiliary component includes two second electric slide rails vertically installed on the top of the conveying mechanism, and third electric slide rails are horizontally installed on the opposite side of the two second electric slide rails. The top of the third electric slide rail is slidably connected with a slide plate, and the top of the slide plate is installed with an auxiliary cylinder. The piston rod of the auxiliary cylinder is connected to an auxiliary plate, and two swing arms are arranged on the side wall of the auxiliary plate, and spring rods are installed on the two swing arms on the side close to the conveying mechanism.

[0009] The present invention is further configured as follows: the assembly component comprises a frame arranged on one side of the conveying mechanism and a support plate horizontally installed inside the frame, and the internal top wall of the frame is slidably connected with the installation mechanism and the placement mechanism.

[0010] The present invention is further configured as follows: the mounting mechanism includes an electric mounting frame slidably connected to the top wall inside the frame and an electric mounting support frame slidably connected to the bottom of the electric mounting frame, a movable plate is slidably connected to the mounting support frame, four mounting tubes are horizontally arranged on the movable plate, four electric sliding rods are installed around the bottom of the mounting support frame, a piston rod of each of the electric sliding rods is installed with an mounting motor, the four mounting motors are arranged corresponding to the four mounting tubes, and the output end of the mounting motor is connected to the corresponding mounting tube.

[0011] By adopting the above technical solution, the electric frame is placed on the frame to slide and drive the manipulator, the first electric guide rail and the two clamping cylinders to move simultaneously, thereby adjusting the position of the manipulator. The manipulator is used to drive the first electric guide rail and the two clamping cylinders to move, so that the two clamping cylinders can have an angle for clamping the cylinder gasket and the cylinder head. The first electric guide rail is a bidirectional electric guide rail, that is, the lead screw in the first electric guide rail is a bidirectional lead screw, which is convenient for driving the two clamping cylinders to move closer to or away from each other. When the two clamping cylinders are adjusted to the clamping angle, the two clamping cylinders approach each other and grab the cylinder gasket placed on the support plate, and then adjust the cylinder gasket to a vertical angle. Then the electric frame is placed to drive the manipulator to move, thereby controlling the cylinder gasket to move to the position of the positioning column and completing the installation.

[0012] The present invention is further configured as follows: the placement mechanism includes an electric placement frame slidably connected to the top wall inside the frame and a manipulator installed at the bottom of the electric placement frame, the output end of the manipulator is installed with a first electric guide rail, and the side walls of the first electric guide rail are slidably installed with two clamping cylinders.

[0013] By adopting the above technical solution, the electric mounting frame is installed to drive the other parts of the installation mechanism to move synchronously, thereby driving the four installation tubes to be adjusted to a position relative to the four positioning columns. Nuts are installed inside the installation tubes. When the cylinder head needs to be installed and fixed, the four electric slide rods simultaneously push the four installation motors to move. At the same time, the moving plate and the four installation tubes simultaneously approach the direction close to the diesel engine body, so that the installation tubes can be sleeved on the outer side walls of the corresponding positioning columns. After that, the four installation motors drive the corresponding installation tubes and the nuts inside the installation tubes to rotate, so that the nuts are screwed on the outer side walls of the corresponding positioning columns, thereby finally achieving the purpose of locking the cylinder head.

[0014] The present invention is further configured as follows: a fixed plate is installed on the side wall of each auxiliary plate, the two swing arms of each auxiliary plate side wall are hinged to the corresponding fixed plate, an adjusting cylinder is installed on the side wall of each auxiliary plate, the piston rod of the adjusting cylinder is connected to a movable groove, the ends of the two swing arms are slidably connected to the inside of the corresponding movable groove, and a spring is connected between the two swing arms and the movable groove.

[0015] The present invention is further configured as follows: an inclined portion is provided at one end of each swing arm away from the adjusting cylinder, the inclined portion is arranged toward the corresponding auxiliary cylinder, a connecting rod is connected between the tops of the opposite sides of the two second electric slide rails, and an auxiliary frame is slidably connected to the same side of the two second electric slide rails.

[0016] The present invention is further configured as follows: two connecting plates are installed on the side wall of the fixed plate, and an L-shaped plate is hingedly connected to one end of the two connecting plates away from the corresponding adjusting cylinder, and a telescopic cylinder is hingedly installed between the two connecting plates, and the piston rod of the telescopic cylinder is hinged to the end of the corresponding L-shaped plate away from the connecting plate.

[0017] By adopting the above technical solution, when the cylinder gasket is mounted on the four positioning columns, the side wall of the cylinder gasket fits with the diesel engine body. In this state, the auxiliary cylinder drives the corresponding auxiliary plate to approach the cylinder gasket, causing the spring rod to be inserted into the interior of the cylinder liner. After that, the adjusting cylinder drives the moving groove to squeeze the swing arm, and the two spring rods on the auxiliary plate move away from each other and fit with the inner wall of the cylinder liner. The cylinder liner is squeezed to adjust the angle and position to ensure that the cylinder gasket can be placed correctly.

[0018] When the cylinder head is installed, the auxiliary cylinder contracts, and the end arc of the spring rod fits with the cylinder sleeve. Then the two third electric slide rails drive the auxiliary cylinder and the auxiliary plate away from each other. The cylinder sleeve applies reverse force to shrink the spring rod. When the cylinder head is assembled, its side wall first fits with the inclined surface of the L-shaped plate. As the cylinder head goes deeper, the auxiliary plate gradually separates, and the side wall of the cylinder head slides on the inclined surface of the L-shaped plate until it slides out completely. Then, the cylinder head fits with the inclined part of the end of the swing arm and gradually slides and separates. When the cylinder head is about to fit with the cylinder gasket, the swing arm is removed from between the cylinder head and the cylinder gasket, and the cylinder head and the cylinder gasket are completely fitted. This operation ensures that the cylinder gasket is always fitted with the diesel engine body during the cylinder head assembly process, preventing the cylinder liner from shifting or the cylinder gasket from offsetting, and avoiding the cylinder liner from breaking.

[0019] The present invention is further configured as follows: the cleaning assembly includes a displacement cylinder horizontally installed on the side wall of the auxiliary frame, the piston rod of the displacement cylinder penetrates the auxiliary frame and is connected to a vertical plate, a cross bracket is installed at the bottom of the vertical plate on a side away from the auxiliary frame, each extension arm of the cross bracket is connected to a sleeve, and an extrusion mechanism is installed at the bottom of the vertical plate on a side close to the auxiliary frame.

[0020] The present invention is further configured as follows: the extrusion mechanism includes a bottom plate body installed on one side of the vertical plate close to the auxiliary frame and four electric chucks arranged between the plate body and the vertical plate, and the four electric chucks are arranged corresponding to the four sleeves.

[0021] The present invention is further configured as follows: four gears are arranged on the side of the plate body close to the vertical plate, wherein every two horizontally arranged gears form a group and mesh with each other, the side wall of each gear is connected to a support arm, the four support arms are arranged corresponding to four electric chucks, the electric chucks are installed on the side walls of the corresponding support arms, and two servo motors are installed on the side of the plate body away from the vertical plate, and the two servo motors are connected to the centers of two of the gears arranged vertically.

[0022] By adopting the above technical solution, before the cylinder gasket is installed, the displacement cylinder drives the vertical plate, cross bracket, sleeve and extrusion mechanism to move, and the sleeve and electric chuck are synchronously installed on the outside of the positioning column. The inner diameter of the sleeve is larger than the outer diameter of the positioning column, and the positioning column is not contacted during movement. When the cross bracket fits with the cylinder sleeve, the displacement cylinder contracts to drive the vertical plate, cross bracket, sleeve and extrusion mechanism to move in the opposite direction. At this time, the inner diameter of the electric chuck is reduced to fit with the positioning column, and the impurities and oil on the surface of the positioning column are scraped off during the reverse movement to ensure that there is no oil or impurities on the surface of the cylinder gasket that affect the sealing.

[0023] After the cylinder gasket is installed, the displacement cylinder drives the vertical plate, cross bracket, sleeve and extrusion mechanism to move simultaneously, and the sleeve on the cross bracket is used to assist in pushing the joint between the cylinder gasket and the positioning column, ensuring that the cylinder gasket reduces the degree of deformation during the installation process and enables the cylinder gasket to be successfully installed and placed.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: (1) By setting the swing arm and spring rod, when the cylinder gasket is mounted on the four positioning columns, the side wall of the cylinder gasket fits with the diesel engine body. In this state, the auxiliary cylinder drives the corresponding auxiliary plate to approach the cylinder gasket, causing the spring rod to be inserted into the cylinder liner. After that, the adjustment cylinder drives the moving groove to squeeze the swing arm. The two spring rods on the auxiliary plate move away from each other and fit with the inner wall of the cylinder liner. The cylinder liner is squeezed to adjust the angle and position to ensure that the cylinder gasket and cylinder head can be placed correctly.

[0025] (2) When the cylinder head is installed, the auxiliary cylinder contracts, and the arc at the end of the spring rod fits with the cylinder sleeve. Then, the two third electric slide rails drive the auxiliary cylinder and the auxiliary plate away from each other. The cylinder sleeve applies reverse force to shrink the spring rod. When the cylinder head is assembled, its side wall first fits with the inclined surface of the L-shaped plate. As the cylinder head goes deeper, the auxiliary plate gradually separates, and the side wall of the cylinder head slides on the inclined surface of the L-shaped plate until it slides out completely. Then, the cylinder head fits with the inclined part of the end of the swing arm and gradually slides away. When the cylinder head is about to fit with the cylinder gasket, the swing arm is removed from between the cylinder head and the cylinder gasket, and the cylinder head and the cylinder gasket are completely fitted. This operation ensures that the cylinder gasket is always fitted with the diesel engine body during the cylinder head assembly process, preventing the cylinder liner from shifting or the cylinder gasket from offset, and avoiding the cylinder liner from rupturing.

[0026] (3) By setting up the extrusion mechanism, before the cylinder gasket is installed, the displacement cylinder drives the vertical plate, cross bracket, sleeve and extrusion mechanism to move, and the sleeve and electric chuck are synchronously installed on the outside of the positioning column. The inner diameter of the sleeve is larger than the outer diameter of the positioning column, and they do not touch the positioning column when moving. When the cross bracket fits with the cylinder sleeve, the displacement cylinder contracts and drives the vertical plate, cross bracket, sleeve and extrusion mechanism to move in the opposite direction. At this time, the inner diameter of the electric chuck shrinks to fit with the positioning column, and scrapes off impurities and oil stains on the surface of the positioning column during the reverse movement to ensure that there is no oil stain or impurities on the surface of the cylinder gasket that affect the sealing.

[0027] (4) After the cylinder gasket is installed, the displacement cylinder drives the vertical plate, cross bracket, sleeve and extrusion mechanism to move simultaneously, and the sleeve on the cross bracket is used to assist in pushing the joint between the cylinder gasket and the positioning column, ensuring that the cylinder gasket is less deformed during the installation process and that the cylinder gasket can be successfully installed and placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic diagram of the overall structure of an automatic cylinder head assembly device for a diesel engine.

[0029] Figure 2 It is a schematic diagram of the coordinated structure of the conveying mechanism, auxiliary components and cleaning components in the present invention.

[0030] Figure 3 It is a schematic diagram of the explosion structure of the diesel engine component in the present invention.

[0031] Figure 4 It is a schematic diagram of the coordination structure of the diesel engine assembly, the auxiliary assembly and the cleaning assembly in the present invention.

[0032] Figure 5 It is a schematic diagram of the coordination structure of the auxiliary component and the cleaning component in the present invention.

[0033] Figure 6 It is a schematic diagram of the local structure of the auxiliary components in the present invention.

[0034] Figure 7 for Figure 6 Schematic diagram of the local structure.

[0035] Figure 8 It is a schematic diagram of the structure of the cleaning component in the present invention.

[0036] Fig. 9 It is a schematic diagram of the structure of the extrusion mechanism in the present invention.

[0037] Fig.10 It is a schematic diagram of the assembly structure of the present invention.

[0038] Fig.11 It is a schematic diagram of the installation mechanism structure in the present invention.

[0039] Fig.12 It is a schematic diagram of the internal structure of the moving tank in the present invention.

[0040] Description of reference numerals: 1. conveying mechanism; 2. Diesel engine assembly; 21. Diesel engine body; 22. Cylinder liner; 23. Positioning column; 24. Cylinder gasket; 25. Cylinder head; 3. Assembling components; 31. Frame; 32. Support plate; 33. Mounting mechanism; 331. Installing electric frame; 332. Installing bearing frame; 333. Moving plate; 334. Electric slide bar; 335. Installing motor; 336. Installing pipe; 34. Placement mechanism; 341. Placement electric frame; 342. Manipulator; 343. First electric guide rail; 344. Clamping cylinder; 4. Auxiliary assembly; 41. Second electric slide rail; 42. Connecting rod; 43. Auxiliary frame; 44. Third electric slide rail; 45. Slide plate; 46. Auxiliary cylinder; 47. Auxiliary plate; 48. Fixed plate; 49. Swing arm; 401. Adjusting cylinder; 402. Moving groove; 403. Inclining part; 404. Connecting plate; 405. Telescopic cylinder; 406. L-shaped plate; 407. Spring rod; 408. Spring; 5. Cleaning assembly; 51. Displacement cylinder; 52. Vertical plate; 53. Cross bracket; 54. Casing; 55. Extrusion mechanism; 551. Plate; 552. Gear; 553. Support arm; 554. Electric chuck; 555. Servo motor. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0043] See also Figure 1-Figure 12 , the present invention provides the following technical solutions: Example 1, see Figure 1 and Figure 2 An automatic assembly device for a cylinder head of a diesel engine includes a conveying mechanism 1, which may be a conveyor belt assembly, which is not specifically limited here, and a diesel engine assembly 2 arranged on the top of the conveying mechanism 1. The diesel engine assembly 2 is conveyed and displaced by the conveying mechanism 1 to facilitate the subsequent assembly of the cylinder head.

[0044] See also Figure 3 The diesel engine assembly 2 includes a diesel engine body 21, a cylinder gasket 24 and a cylinder head 25. A cylinder liner 22 and four positioning columns 23 are arranged on one side of the diesel engine body 21. The cylinder liner 22 loads the interior of the diesel engine body 21, and the four positioning columns 23 are installed on the side wall of the diesel engine body 21. The cylinder gasket 24 and the cylinder head 25 can be guided and placed by the four positioning columns 23, and threads are arranged on the four positioning columns 23. The cylinder head 25 can be installed and fixed by nuts and threads on the positioning columns 23.

[0045] See also Figure 1 , Fig.10 and Fig.11 An assembly component 3 is provided on one side of the conveying mechanism 1. The assembly component 3 is used to grab and assemble the cylinder gasket 24 and the cylinder head 25 to be assembled to the diesel engine body 21. The specific structure of the assembly component 3 is as follows: See also Figure 1 , Fig.10 and Fig.11 The assembly component 3 includes a frame 31 arranged on one side of the conveying mechanism 1 and a support plate 32 horizontally installed inside the frame 31. The internal top wall of the frame 31 is slidably connected with a mounting mechanism 33 and a placement mechanism 34. The mounting mechanism 33 and the placement mechanism 34 can slide on the frame 31, and the support plate 32 is used to place the cylinder gasket 24 and the cylinder head 25 to be assembled. When the diesel engine assembly 2 is moved to a suitable position, the placement mechanism 34 can pick up the cylinder gasket 24 and put it on the four positioning columns 23, and the cylinder gasket 24 is attached to the side wall of the diesel engine body 21. Then, the cylinder head 25 is picked up and put on the four positioning columns 23 again, and then the placement mechanism 34 fixes the cylinder head 25 with nuts.

[0046] See also Figure 1 , Fig.10The placement mechanism 34 includes a placement electric frame 341 slidably connected to the top wall of the frame 31 and a manipulator 342 installed at the bottom of the placement electric frame 341. The output end of the manipulator 342 is installed with a first electric guide rail 343. The side walls of the first electric guide rail 343 are slidably installed with two clamping cylinders 344. When the placement electric frame 341 slides on the frame 31, it drives the manipulator 342, the first electric guide rail 343 and the two clamping cylinders 344 to move simultaneously, thereby adjusting the position of the manipulator 342. The manipulator 342 is used to drive the first electric guide rail 343 and the two clamping cylinders 344 to move, so as to adjust the position of the manipulator 342. The two clamping cylinders 344 are enabled to have an angle for clamping the cylinder gasket 24 and the cylinder head 25. The first electric guide rail 343 is a bidirectional electric guide rail, that is, the screw rod in the first electric guide rail 343 is a bidirectional screw rod, which is convenient for driving the two clamping cylinders 344 to move closer to or away from each other. When the two clamping cylinders 344 are adjusted to the clamping angle, the two clamping cylinders 344 approach each other and grab the cylinder gasket 24 placed on the support plate 32, and then adjust the cylinder gasket 24 to a vertical angle, and then place the electric frame 341 to drive the manipulator 342 to move, thereby controlling the cylinder gasket 24 to move to the position of the four positioning columns 23 and complete the installation.

[0047] Then, the two clamping cylinders 344 are adjusted to the position of the cylinder head 25, and the cylinder head 25 is clamped by the two clamping cylinders 344 approaching each other and is again mounted on the four positioning columns 23. After the placement work is completed, the cylinder head 25 is installed using the installation mechanism 33. The specific structure of the installation mechanism 33 is as follows: See also Figure 1 , Fig.10 and Fig.11The mounting mechanism 33 includes an electric mounting frame 331 slidably connected to the top wall of the frame 31 and an mounting support frame 332 slidably connected to the bottom of the electric mounting frame 331. A moving plate 333 is slidably connected to the mounting support frame 332. Four mounting tubes 336 are horizontally arranged on the moving plate 333. Four electric slide rods 334 are installed around the bottom of the mounting support frame 332. The piston rod of each electric slide rod 334 is installed with an mounting motor 335. The four mounting motors 335 are arranged corresponding to the four mounting tubes 336. The output end of the mounting motor 335 is connected to the corresponding mounting tube 336. The electric mounting frame 331 is used to drive other parts of the mounting mechanism 33. The parts move synchronously, thereby driving the four mounting tubes 336 to be adjusted to a position relative to the four positioning columns 23. The mounting tubes 336 are equipped with nuts inside. When the cylinder head 25 needs to be installed and fixed, the four electric slide rods 334 simultaneously push the four mounting motors 335 to move. At the same time, the moving plate 333 and the four mounting tubes 336 simultaneously approach the direction close to the diesel engine body 21, so that the mounting tubes 336 can be sleeved on the outer side walls of the corresponding positioning columns 23. After that, the four mounting motors 335 drive the corresponding mounting tubes 336 and the nuts inside the mounting tubes 336 to rotate, so that the nuts are screwed on the outer side walls of the corresponding positioning columns 23, thereby finally achieving the purpose of locking the cylinder head 25.

[0048] In the second embodiment, during the assembly process of the diesel engine, the cylinder liner 22 will be offset. If it is not adjusted before placing the cylinder gasket 24, it may cause a mutual squeezing force between the cylinder liner 22 and the cylinder gasket 24. In this case, forcibly assembling the cylinder head 25 will not only damage the sealing performance of the cylinder gasket 24, but may also further aggravate the stress on the cylinder liner 22, and eventually cause the cylinder liner 22 to rupture.

[0049] For this purpose, see Figure 2 An auxiliary component 4 is installed on the top of the conveying mechanism 1. The auxiliary component 4 is used to assist in positioning the cylinder sleeve 22 to ensure that the cylinder sleeve 22 is in a normal position and to facilitate the placement of the cylinder gasket 24. The specific structure of the auxiliary component 4 is as follows: See also Figure 4-Figure 7 and Fig.12The auxiliary component 4 includes two second electric slide rails 41 vertically installed on the top of the conveying mechanism 1, a connecting rod 42 is connected between the tops of the two second electric slide rails 41 on the opposite side, and the second electric slide rails 41 and the connecting rod 42 cooperate to form a gantry structure, and the third electric slide rails 44 are horizontally installed on the opposite side of the two second electric slide rails 41. A slide plate 45 is slidably connected to the top of the third electric slide rail 44, and an auxiliary cylinder 46 is installed on the top of the slide plate 45. The third electric slide rail 44 is used to drive the slide plate 45 and the corresponding auxiliary cylinder 46 to move in the horizontal direction, thereby adjusting the distance between the two auxiliary cylinders 46, and the piston rod of the auxiliary cylinder 46 is connected to the auxiliary plate 47, and the auxiliary cylinder 46 is used to drive the corresponding auxiliary plate 47 to move, thereby adjusting the auxiliary plate 47 and the cylinder sleeve 22. The distance between them, each auxiliary plate 47 is installed with a fixed plate 48 on the side wall, and two swing arms 49 are arranged on the side wall of the auxiliary plate 47, and the two swing arms 49 on the side wall of each auxiliary plate 47 are hinged with the corresponding fixed plate 48, and the two swing arms 49 are installed with a spring rod 407 on the side close to the conveying mechanism 1, and each auxiliary plate 47 is installed with an adjusting cylinder 401 on the side wall, and the piston rod of the adjusting cylinder 401 is connected with a moving groove 402, and the ends of the two swing arms 49 are slidably connected to the inside of the corresponding moving groove 402, and the two swing arms 49 are connected with a spring 408 between the moving grooves 402, and two rod bodies are installed inside the moving groove 402, and sliders are slidably connected to the two rod bodies, and the two sliders are hinged with the two swing arms 49, and the spring 408 is connected between the slider and the moving groove 402.

[0050] The adjusting cylinder 401 is used to drive the corresponding movable groove 402 to move, and the movable groove 402 squeezes or pulls the corresponding swing arm 49. The angle of the swing arm 49 changes during the squeezing or pulling process, that is, when the swing arm 49 is squeezed, the swing arm 49 drives the corresponding slider to slide on the corresponding rod body and squeezes the spring 408, and the angle between the two swing arms 49 increases. When the swing arm 49 is pulled, the swing arm 49 drives the corresponding slider to slide on the corresponding rod body and releases the spring 408, and the angle between the two swing arms 49 decreases.

[0051] Specifically, when the cylinder gasket 24 is sleeved on the four positioning columns 23, the side wall of the cylinder gasket 24 fits against the diesel engine body 21. In this state, the auxiliary cylinder 46 drives the corresponding auxiliary plate 47 to approach the direction of the cylinder gasket 24, causing the spring rod 407 to be inserted into the interior of the cylinder liner 22. Afterwards, the adjusting cylinder 401 drives the movable groove 402 to squeeze the swing arm 49. The two spring rods 407 on the auxiliary plate 47 move away from each other and fit against the inner wall of the cylinder liner 22. The cylinder liner 22 is squeezed to adjust the angle and position to ensure that the cylinder gasket 24 can be placed correctly.

[0052] If it is only a single adjustment, after the cylinder gasket 24 is placed, since the cylinder gasket 24 has no driving force for installation, the cylinder liner 22 may sag slightly due to the influence of gravity, and the cylinder gasket 24 will be squeezed by the cylinder liner 22 and move out a certain distance in the reverse direction, so that the cylinder gasket 24 is not placed in place, and the cylinder gasket 24 will still squeeze the offset cylinder liner 22. If the auxiliary adjustment mechanism is used to maintain the adjustment state of the cylinder liner 22, the auxiliary adjustment mechanism will interfere with the installation of the cylinder gasket 24 and the cylinder head 25. If it is withdrawn directly, the cylinder liner 22 will still be offset and cause the cylinder gasket 24 to be squeezed in the reverse direction.

[0053] For this purpose, see Figure 7 Two connecting plates 404 are installed on the side wall of the fixed plate 48, and an L-shaped plate 406 is hinged at one end of the two connected plates 404 away from the corresponding adjusting cylinder 401, and a telescopic cylinder 405 is hinged between the two connecting plates 404. The piston rod of the telescopic cylinder 405 is hinged to the end of the corresponding L-shaped plate 406 away from the connecting plate 404, and the adjusting cylinder 401 is used to push the L-shaped plate 406 to swing between the two connecting plates 404. When the adjusting cylinder 401 is extended, the side wall of the L-shaped plate 406 is in an inclined state, and the inclination direction extends toward the center of the cylinder sleeve 22. When the adjusting cylinder 401 is retracted, the L-shaped plate 406 can be retracted between the two connecting plates 404. At the same time, when the adjusting cylinder 401 is in a fully retracted state, there is still an angle of less than 180 degrees between the L-shaped plate 406 and the L-shaped plate 406, ensuring that the L-shaped plate 406 can be smoothly swung out when the adjusting cylinder 401 is extended.

[0054] An inclined portion 403 is formed at one end of each swing arm 49 away from the regulating cylinder 401 . The inclined portion 403 is arranged toward the corresponding auxiliary cylinder 46 . The end of the spring rod 407 is in an arc shape.

[0055] Specifically, when the cylinder head 25 is installed, the auxiliary cylinder 46 contracts a certain distance, so that the arc position of the end of the spring rod 407 fits with the cylinder sleeve 22, and then the two third electric slide rails 44 operate, so that the two auxiliary cylinders 46 move away from each other, and synchronously drive the auxiliary plates 47 to move away from each other, and the spring rod 407 squeezes the cylinder sleeve 22, and the cylinder sleeve 22 applies a force in the opposite direction, causing the spring rod 407 to contract. In this state, the L-shaped plate 406 extends from between the two connecting plates 404. When the cylinder head 25 is assembled, the side wall first fits with the side wall inclined surface of the L-shaped plate 406. As the cylinder head 25 continues to deepen, The auxiliary plate 47 is gradually separated, and the side wall of the cylinder head 25 slides on the inclined surface of the side wall of the L-shaped plate 406 until it slides out completely. Then, the cylinder head 25 is attached to the inclined portion 403 at the end of the swing arm 49 and gradually slides away. When the cylinder head 25 is about to be attached to the cylinder gasket 24, the swing arm 49 is removed from between the cylinder head 25 and the cylinder gasket 24, and then the cylinder head 25 and the cylinder gasket 24 are attached. This operation can ensure that the cylinder head 25 is always in contact with the diesel engine body 21 during the assembly process, and the cylinder gasket 24 is prevented from shifting due to the displacement of the cylinder liner 22, thereby preventing the cylinder liner 22 from breaking.

[0056] Embodiment 3: During the installation of the cylinder gasket 24 of the diesel engine, since the cylinder gasket 24 is usually made of flexible material, it is easy to deform when placed. When there is oil or impurities on the guide column, this deformation may cause friction between the cylinder gasket 24 and the guide column, and the oil will be scraped up and stick to the surface of the cylinder gasket 24. After the cylinder head 25 is installed, the oil or impurities on the surface of the cylinder gasket 24 will affect the sealing performance, causing coolant leakage and poor sealing of the combustion chamber.

[0057] For this purpose, see Figure 5 , Figure 8 and Fig. 9 , the auxiliary frame 43 is slidably connected on the same side of the two second electric slide rails 41, and the cleaning component 5 is installed on the auxiliary frame 43. Before the cylinder gasket 24 is installed, the cleaning component 5 first cleans the impurities and oil stains on the positioning column 23. The specific structure of the cleaning component 5 is as follows: See also Figure 8 and Fig. 9The cleaning assembly 5 includes a displacement cylinder 51 horizontally mounted on the side wall of the auxiliary frame 43. The piston rod of the displacement cylinder 51 penetrates the auxiliary frame 43 and is connected to a vertical plate 52. A cross bracket 53 is mounted at the bottom of the vertical plate 52 away from the auxiliary frame 43. A sleeve 54 is connected to each extension arm of the cross bracket 53. A squeezing mechanism 55 is mounted at the bottom of the vertical plate 52 close to the auxiliary frame 43. When the diesel engine body 21 moves to the position of the cleaning assembly 5, the displacement cylinder 51 drives the vertical plate 52, the cross bracket 53, the sleeve 54 and the squeezing mechanism 55 to move simultaneously. The sleeve 54 on the bracket 53 is sleeved onto the outside of the positioning column 23, and the extrusion mechanism 55 is synchronously sleeved onto the outside of the positioning column 23. The inner diameter of the sleeve 54 and the inner diameter of the extrusion mechanism 55 are both larger than the outer diameter of the positioning column 23. When the sleeve 54 and the extrusion mechanism 55 move toward the positioning column 23, they do not contact the positioning column 23. When moving in the reverse direction, the inner diameter of the extrusion mechanism 55 is reduced and fits with the positioning column 23. With the reverse movement, the extrusion mechanism 55 can scrape off the impurities and oil stains on the surface of the positioning column 23. The specific structure of the extrusion mechanism 55 is as follows: See also Fig. 9 The squeezing mechanism 55 includes a bottom plate body 551 installed on one side of the vertical plate 52 close to the auxiliary frame 43 and four electric chucks 554 arranged between the plate body 551 and the vertical plate 52. The four electric chucks 554 are arranged corresponding to the four sleeves 54.

[0058] Four gears 552 are provided on the side of the plate body 551 close to the vertical plate 52, wherein every two horizontally arranged gears 552 form a group and mesh with each other, the side wall of each gear 552 is connected with a support arm 553, the four support arms 553 are arranged corresponding to the four electric chucks 554, the electric chucks 554 are installed on the side walls of the corresponding support arms 553, and two servo motors 555 are installed on the side of the plate body 551 away from the vertical plate 52, the two servo motors 555 are connected to the centers of two of the gears 552 arranged up and down, the two servo motors 555 are used to drive the corresponding gears 552 to rotate, and the two gears 552 respectively drive the gears 552 of the same group to mesh and rotate, at this time, the four gears 552 rotate at the same time and drive the corresponding support arms 553 to move, the support arms 553 drive the corresponding electric chucks 554 to move, and then the electric chucks 554 are moved to the position corresponding to the positioning column 23, and the inner diameter of the electric chucks 554 is adjustable, which is convenient for subsequent cleaning operations.

[0059] Specifically, before the cylinder gasket 24 is installed, the vertical plate 52, the cross bracket 53, the sleeve 54 and the extrusion mechanism 55 are first driven by the displacement cylinder 51 to move simultaneously, and the sleeve 54 on the cross bracket 53 is installed on the outside of the positioning column 23, and at the same time, the four electric chucks 554 are synchronously installed on the outside of the positioning column 23, and the inner diameter of the sleeve 54 and the inner diameter of the electric chuck 554 are both larger than the outer diameter of the positioning column 23. When the sleeve 54 and the extrusion mechanism 55 move in the direction close to the positioning column 23, they do not contact the positioning column 23. When the cross bracket 53 fits with the cylinder sleeve 22, the displacement cylinder 51 contracts, and the vertical plate 52, the cross bracket 53, the sleeve 54 and the extrusion mechanism 55 move in the opposite direction, and the inner diameter of the electric chuck 554 is reduced and fits with the positioning column 23. With the reverse movement, the electric chuck 554 can scrape off the impurities and oil stains on the surface of the positioning column 23.

[0060] After that, the placement mechanism 34 places the cylinder gasket 24. After the placement is completed, the cleaning component 5 operates again, that is, the vertical plate 52, the cross bracket 53, the sleeve 54 and the extrusion mechanism 55 are driven to move simultaneously through the displacement cylinder 51. In this state, the four support arms 553 swing, causing the four electric chucks 554 and the four sleeves 54 to be misaligned. Only the sleeve 54 on the cross bracket 53 is used to assist in pushing the joint between the cylinder gasket 24 and the positioning column 23, thereby ensuring that the cylinder gasket 24 reduces the degree of deformation during the sleeve installation process and enables the cylinder gasket 24 to be smoothly sleeved and placed.

[0061] After the cylinder gasket 24 is placed, the swing arm 49 and the spring rod 407 are used to assist in positioning the cylinder liner 22, the cleaning assembly 5 and the auxiliary frame 43 are moved up and away from the corresponding position of the cylinder liner 22, and the placement mechanism 34 is operated again to transfer and place the cylinder head 25, and then the installation mechanism 33 is used to assist in the installation.

[0062] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. An automatic assembly device for a cylinder head of a diesel engine, characterized in that: It comprises a conveying mechanism (1), a diesel engine assembly (2) and an auxiliary assembly (4) arranged on the top of the conveying mechanism (1), a cleaning assembly (5) installed on the auxiliary assembly (4), and an assembly assembly (3) arranged on one side of the conveying mechanism (1); The diesel engine assembly (2) comprises a diesel engine body (21), a cylinder gasket (24) and a cylinder head (25); a cylinder liner (22) and four positioning columns (23) are provided on one side of the diesel engine body (21); The auxiliary component (4) comprises two second electric slide rails (41) vertically mounted on the top of the conveying mechanism (1); a third electric slide rail (44) is horizontally mounted on opposite sides of the two second electric slide rails (41); a slide plate (45) is slidably connected to the top of the third electric slide rail (44); an auxiliary cylinder (46) is mounted on the top of the slide plate (45); a piston rod of the auxiliary cylinder (46) is connected to an auxiliary plate (47); two swing arms (49) are arranged on the side wall of the auxiliary plate (47); and a spring rod (407) is mounted on the side of the two swing arms (49) close to the conveying mechanism (1).

2. The automatic assembly device for a cylinder head of a diesel engine according to claim 1, characterized in that: The assembly component (3) comprises a frame (31) arranged on one side of the conveying mechanism (1) and a support plate (32) installed horizontally inside the frame (31); the internal top wall of the frame (31) is slidably connected with a mounting mechanism (33) and a placement mechanism (34).

3. The automatic assembly device for a cylinder head of a diesel engine according to claim 2, characterized in that: The mounting mechanism (33) comprises an electric mounting frame (331) slidably connected to the internal top wall of the frame (31) and an mounting support frame (332) slidably connected to the bottom of the electric mounting frame (331); a movable plate (333) is slidably connected to the mounting support frame (332); four mounting tubes (336) are horizontally arranged on the movable plate (333); four electric slide rods (334) are installed around the bottom of the mounting support frame (332); a piston rod of each electric slide rod (334) is installed with an mounting motor (335); the four mounting motors (335) are arranged corresponding to the four mounting tubes (336); and the output end of the mounting motor (335) is connected to the corresponding mounting tube (336).

4. The automatic assembly device for a cylinder head of a diesel engine according to claim 2, characterized in that: The placement mechanism (34) comprises a placement electric frame (341) slidably connected to the internal top wall of the frame (31) and a manipulator (342) mounted on the bottom of the placement electric frame (341); a first electric guide rail (343) is mounted on the output end of the manipulator (342); and two clamping cylinders (344) are slidably mounted on the side walls of the first electric guide rail (343).

5. The automatic assembly device for a cylinder head of a diesel engine according to claim 1, characterized in that: A fixed plate (48) is installed on the side wall of each auxiliary plate (47); two swing arms (49) on the side wall of each auxiliary plate (47) are hinged to the corresponding fixed plate (48); an adjusting cylinder (401) is installed on the side wall of each auxiliary plate (47); a piston rod of the adjusting cylinder (401) is connected to a movable groove (402); ends of the two swing arms (49) are slidably connected to the inside of the corresponding movable groove (402); and a spring (408) is connected between the two swing arms (49) and the movable groove (402).

6. The automatic assembly device for a cylinder head of a diesel engine according to claim 5, characterized in that: Each of the swing arms (49) is provided with an inclined portion (403) at one end away from the regulating cylinder (401), and the inclined portion (403) is arranged toward the corresponding auxiliary cylinder (46). A connecting rod (42) is connected between the tops of the two second electric slide rails (41) on opposite sides, and an auxiliary frame (43) is slidably connected to the same side of the two second electric slide rails (41).

7. The automatic assembly device for a cylinder head of a diesel engine according to claim 6, characterized in that: Two connecting plates (404) are installed on the side wall of the fixed plate (48), and an L-shaped plate (406) is hingedly connected to one end of the two connecting plates (404) away from the corresponding regulating cylinder (401). A telescopic cylinder (405) is hingedly installed between the two connecting plates (404), and a piston rod of the telescopic cylinder (405) is hingedly connected to one end of the corresponding L-shaped plate (406) away from the connecting plate (404).

8. The automatic assembly device for a cylinder head of a diesel engine according to claim 7, characterized in that: The cleaning assembly (5) comprises a displacement cylinder (51) mounted horizontally on a side wall of the auxiliary frame (43); a piston rod of the displacement cylinder (51) penetrates the auxiliary frame (43) and is connected to a vertical plate (52); a cross bracket (53) is mounted on the bottom of a side of the vertical plate (52) away from the auxiliary frame (43); each extension arm of the cross bracket (53) is connected to a sleeve (54); and a squeezing mechanism (55) is mounted on the bottom of a side of the vertical plate (52) close to the auxiliary frame (43).

9. The automatic assembly device for a cylinder head of a diesel engine according to claim 8, characterized in that: The squeezing mechanism (55) comprises a bottom plate body (551) mounted on one side of the vertical plate (52) close to the auxiliary frame (43) and four electric chucks (554) arranged between the plate body (551) and the vertical plate (52), wherein the four electric chucks (554) are arranged corresponding to the four sleeves (54).

10. The automatic assembly device for a cylinder head of a diesel engine according to claim 9, characterized in that: Four gears (552) are arranged on one side of the plate body (551) close to the vertical plate (52), wherein every two horizontally arranged gears (552) form a group and mesh with each other, and the side wall of each gear (552) is connected to a support arm (553), and the four support arms (553) are arranged correspondingly to four electric chucks (554), and the electric chucks (554) are installed on the side walls of the corresponding support arms (553), and two servo motors (555) are installed on one side of the plate body (551) away from the vertical plate (52), and the two servo motors (555) are connected to the centers of two of the gears (552) arranged vertically.

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