A turning device for an internal combustion engine rocker arm assembly

Abstract

The present invention relates to the technical field of turning devices, and specifically relates to a turning device for an internal combustion engine rocker arm assembly, including a device body. A positioning table is installed on the device body, and an installation and fitting cavity is provided on the device body. The positioning table is positioned through the installation and fitting cavity. Installation locking holes are symmetrically provided on both sides inside the installation and fitting cavity, and a table body fixing mechanism is fixedly arranged in the installation and fitting cavity. When the positioning table is installed on the device body, the installation bottom sleeve is inserted into the installation and fitting cavity; when installing the positioning table, the operating block is pushed into the retraction channel, and then the positioning of the positioning table is realized through the cooperation between the installation bottom sleeve on the positioning table and the installation and fitting cavity. Releasing the operating block can realize the fixed installation of the positioning table. During daily work, when it is necessary to clean the waste chips, the operating block is pushed into the retraction channel again, and the waste chips around the positioning table can be pushed away from the positioning table, facilitating the cleaning by the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of turning devices, and specifically relates to a turning device for an internal combustion engine rocker arm assembly. Background Art

[0002] The internal combustion engine rocker arm is one of the key components of the internal combustion engine valve train, mainly used to control the movement of the valve. When the internal combustion engine rocker arm is produced, it needs to be turned. On the existing turning devices for the production of internal combustion engine rocker arms, a positioning table is installed. The fixture for the internal combustion engine rocker arm is installed through the positioning table, and the stability of the internal combustion engine rocker arm during the processing is ensured by the fixture to ensure the smooth completion of the turning process. Turning waste chips will be generated during the turning process, and it is necessary for the staff to clean them regularly. However, it is more troublesome to clean the waste chips around the positioning table, and it is not easy to clean them thoroughly, which is time-consuming and laborious. In addition, the installation and disassembly of the positioning table are relatively troublesome. When the device needs to be overhauled or maintained and the positioning table needs to be disassembled, a lot of time is often spent on the installation and disassembly of the positioning table, and the convenient installation and disassembly of the positioning table cannot be achieved. Summary of the Invention

[0003] The purpose of the present invention is to provide a turning device for an internal combustion engine rocker arm assembly to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A turning device for an internal combustion engine rocker arm assembly includes a device body. A positioning table is installed on the device body, and an installation and fitting cavity is provided on the device body for positioning the positioning table;

[0006] On both sides of the inside of the installation and fitting cavity, installation lock holes are symmetrically provided, and a table body fixing mechanism is fixedly arranged in the installation and fitting cavity to fix the positioning table through the table body fixing mechanism;

[0007] An installation bottom sleeve is fixedly arranged at the lower end of the positioning table. When the positioning table is installed on the device body, the installation bottom sleeve is inserted into the installation and fitting cavity;

[0008] A table body strengthening and fixing mechanism is installed on the installation bottom sleeve. The table body strengthening and fixing mechanism can further strengthen the fixing of the positioning table, and the table body strengthening and fixing mechanism can also drive the table body fixing mechanism to move.

[0009] Preferably, one end of the positioning table is provided with a retracted channel, and a fitting connection hole is provided on the installation bottom sleeve below the retracted channel;

[0010] A support inner rod is fixedly arranged inside one end of the installation bottom sleeve provided with the fitting connection hole, and a fitting channel is provided at the other end of the installation bottom sleeve.

[0011] Preferably, on both sides of the installation bottom sleeve, side connection holes and side jacks are symmetrically provided, and an internal load-bearing plate is fixedly arranged inside the installation bottom sleeve, and fixing through holes are provided on the internal load-bearing plate;

[0012] On the inner top surface of the installation bottom sleeve, load-bearing mating holes are also symmetrically provided near one end of the mating connection hole.

[0013] Preferably, the table body fixing mechanism includes an installation mating block and a movable interlocking plate. The installation mating block is fixedly arranged in the installation mating cavity, and interlocking channels are symmetrically provided on both sides of the upper end of the installation mating block;

[0014] On the upper side of the interlocking channel, a plugging channel is provided, and a connection groove is provided on the installation mating block between the interlocking channels. An internal bearing vertical rod is fixedly arranged in the connection groove;

[0015] On both sides of the lower end of the installation mating block, through holes are also symmetrically provided, and a movable interlocking plate is installed on the installation mating block.

[0016] Preferably, on both sides of the movable interlocking plate, load-bearing plug rods are symmetrically fixedly arranged. The load-bearing plug rods are plugged in the through holes, and a support load plate is fixedly arranged at the other end of the load-bearing plug rods;

[0017] An installation mating column is fixedly arranged on the support load plate, and a mating groove is provided on the upper side of the support load plate;

[0018] A mating connection rod is hinged on the movable interlocking plate. The upper end of the mating connection rod is hinged with a moving plate. A moving connection hole is provided on the moving plate, and an internal bearing vertical rod is plugged in the moving connection hole.

[0019] Preferably, the table body strengthening and fixing mechanism includes an operation block, a movable connection block, a rotating column and a movable connection strip. The operation block is plugged in the retraction channel, and a connecting link is fixedly arranged on the operation block. A load-bearing plate strip is fixedly arranged on the connecting link;

[0020] The load-bearing plate strip is inside the installation bottom sleeve. Support load holes are symmetrically provided on the load-bearing plate strip. Support inner rods are plugged in the support load holes, and first springs are sleeved on the support inner rods.

[0021] Preferably, on both sides of the load-bearing plate strip, load-bearing side plates are symmetrically fixedly arranged. A mating dial rod is fixedly arranged at one end of the load-bearing side plate close to the load-bearing plate strip;

[0022] A mating connection frame is fixedly arranged at one end of the load-bearing side plate far from the load-bearing plate strip. A driving link is hinged on the mating connection frame, and a support thin rod is also fixedly arranged at one end of the load-bearing side plate far from the load-bearing plate strip;

[0023] A fixed insertion plate is fixedly arranged on the supporting thin rod, and a matching carrier bar is also fixedly arranged on the supporting thin rod. The matching carrier bar is inserted into the matching channel, and a first chip pushing bar is fixedly arranged on the matching carrier bar.

[0024] Preferably, there are two movable connecting blocks, symmetrically arranged on both sides inside the mounting bottom sleeve, and the movable connecting blocks are hinged to the driving connecting rod;

[0025] A matching bearing rod is fixedly arranged on the movable connecting block. The matching bearing rod is inserted into the side connecting hole, and a second chip pushing bar is fixedly arranged on the matching bearing rod.

[0026] Preferably, a bearing is sleeved on the rotating column. The bearing is installed in the bearing matching hole, and a bearing rotating block is fixedly arranged on the rotating column. A driven plate bar is fixedly arranged on one side of the bearing rotating block;

[0027] An connecting link plate is fixedly arranged on the other side of the bearing rotating block. An connecting plate bar is hinged to the connecting link plate. A movable through hole is formed in the connecting plate bar, and a matching carrier plate is fixedly arranged on the connecting plate bar. An installation locking column is fixedly arranged on the matching carrier plate. The installation locking column is inserted into the side jack.

[0028] Preferably, the connecting plate bar is connected with a movable connecting bar. First support blocks are symmetrically and fixedly arranged at both ends of the movable connecting bar, and a second support block is fixedly arranged at the middle position of the movable connecting bar;

[0029] A connecting bearing rod is fixedly arranged between the first support block and the second support block. The connecting bearing rod is matched with the movable through hole, and a second spring is sleeved on the connecting bearing rod;

[0030] A bearing connecting rod is fixedly arranged on the movable connecting bar. The bearing connecting rod is inserted into the matching connecting hole, and a third chip pushing bar is fixedly arranged on the bearing connecting rod.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is reasonably arranged and has strong functionality, and has the following advantages:

[0032] 1. When installing the positioning table, push the operating block into the retracting channel, and then realize the positioning of the positioning table through the cooperation of the mounting bottom sleeve on the positioning table and the mounting cooperation cavity. Release the operating block to realize the fixed installation of the positioning table. During daily work, when it is necessary to clean the waste chips, push the operating block into the retracting channel again, and the waste chips around the positioning table can be pushed away from the positioning table, which is convenient for the staff to clean.

[0033] 2. When the operation block is released, it is reset under the action of the first spring. As the operation block is reset, it will drive the fixed plug board to be inserted into the interlock channel, realizing the first-step fixed connection between the positioning table and the device body. At the same time, as the fixed plug board moves, it will also drive the movable interlock board to move, so that the installation and cooperation columns on the movable interlock board are inserted into the fixed through holes to further fix the positioning table and the device body.

[0034] 3. In addition, during the reverse movement of the operation block, as the cooperation lever is reset, it will also drive the connecting plate strip to move under the action of the second spring. As the connecting plate strip is reset, the installation lock column on the connecting plate strip will be inserted into the side jack, which can further strengthen the fixed connection between the positioning table and the device body, fully ensuring the firmness and stability of the positioning table installation. In addition, when the positioning table is disassembled from the device body, pushing the operation block can make the positioning table unlock at multiple points, and the operation is very simple, convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an assembly schematic diagram of the device body and the positioning table.

[0036] Figure 2 It is a schematic diagram of the first perspective of the device body assembly.

[0037] Figure 3 It is a schematic diagram of the second perspective of the device body assembly.

[0038] Figure 4 For Figure 2 The enlarged schematic diagram at A in

[0039] Figure 5 For Figure 3 The enlarged schematic diagram at B in

[0040] Figure 6 It is a schematic diagram of the first perspective of the positioning table assembly.

[0041] Figure 7 It is a schematic diagram of the second perspective of the positioning table assembly.

[0042] Figure 8 For Figure 7 The enlarged schematic diagram at C in

[0043] Figure 9 It is a structural schematic diagram of the positioning table.

[0044] Figure 10 It is a structural schematic diagram of the operation block.

[0045] Figure 11 It is a structural schematic diagram of the connecting plate strip.

[0046] In the figure: 1. Device body; 11. Mounting matching cavity; 12. Mounting lock hole; 13. Mounting matching block; 14. Interlocking channel; 15. Insertion channel; 16. Connection groove; 17. Inner supporting rod; 18. Through hole; 2. Positioning platform; 21. Mounting bottom sleeve; 22. Inner shrinkage channel; 23. Matching hole; 24. Matching channel; 25. Side connecting hole; 26. Side plug hole; 27. Support inner rod; 28. Inner connecting plate; 281. Fixed through hole; 29. Bearing matching hole; 3. Movable interlocking plate; 31. Bearing plug rod; 32. Supporting carrier plate; 33. Mounting matching column; 34. Matching groove; 35. Matching connecting rod; 36. Moving plate; 37. Moving connecting hole; 4. Operation block; 41. Connecting rod; 42 , loading strip; 43, supporting hole; 44, first spring; 45, load-bearing side plate; 451, matching lever; 452, matching connecting frame; 453, driving connecting rod; 46, supporting thin rod; 47, fixing plug plate; 48, matching load-bearing strip; 49, first chip pushing strip; 5, movable connecting block; 51, matching supporting rod; 52, second chip pushing strip; 6, rotating column; 61, bearing; 62, load-bearing rotating block; 63, pushed strip; 64, connecting connecting plate; 65, connecting strip; 66, movable through hole; 67, matching load-bearing plate; 68, installing locking column; 7, movable connecting strip; 71, first support block; 72, second support block; 73, connecting supporting rod; 74, second spring; 75, load-bearing connecting rod; 76, third chip pushing strip. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The present invention provides a technical solution:

[0049] like Figure 1 and Figure 5As shown in the figure, a turning device for an internal combustion engine rocker arm assembly includes a device body 1. A positioning table 2 is installed on the device body 1. An installation and cooperation cavity 11 is opened on the device body 1. The positioning table 2 is positioned through the installation and cooperation cavity 11. Installation lock holes 12 are symmetrically opened on both sides inside the installation and cooperation cavity 11. And a table body fixing mechanism is fixedly arranged in the installation and cooperation cavity 11. The positioning table 2 is fixed through the table body fixing mechanism. An installation bottom sleeve 21 is fixedly arranged at the lower end of the positioning table 2. When the positioning table 2 is installed on the device body 1, the installation bottom sleeve 21 is inserted into the installation and cooperation cavity 11. A table body strengthening and fixing mechanism is installed on the installation bottom sleeve 21. The table body strengthening and fixing mechanism can further strengthen the fixing of the positioning table 2. And the table body strengthening and fixing mechanism can also drive the table body fixing mechanism to move.

[0050] As Figure 9 shown, one end of the positioning table 2 is provided with a retracted channel 22. A cooperation connecting hole 23 is opened on the installation bottom sleeve 21 below the retracted channel 22. A support inner rod 27 is fixedly arranged on the inner side of one end of the installation bottom sleeve 21 provided with the cooperation connecting hole 23. And a cooperation channel 24 is opened at the other end of the installation bottom sleeve 21.

[0051] As Figure 9 shown, side connecting holes 25 and side insertion holes 26 are symmetrically opened on both sides of the installation bottom sleeve 21. And an inner load-bearing plate 28 is fixedly arranged inside the installation bottom sleeve 21. A fixing through hole 281 is opened on the inner load-bearing plate 28. Load-bearing cooperation holes 29 are symmetrically opened on the inner top surface of the installation bottom sleeve 21 near one end of the cooperation connecting hole 23.

[0052] As Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, the table body fixing mechanism includes an installation and cooperation block 13 and a movable interlocking plate 3. The installation and cooperation block 13 is fixedly arranged in the installation and cooperation cavity 11. And interlocking channels 14 are symmetrically opened on both sides of the upper end of the installation and cooperation block 13. An insertion channel 15 is opened above the interlocking channels 14. And a connection groove 16 is opened on the installation and cooperation block 13 between the interlocking channels 14. An inner supporting vertical rod 17 is fixedly arranged in the connection groove 16. Through holes 18 are symmetrically opened on both sides of the lower end of the installation and cooperation block 13. And a movable interlocking plate 3 is installed on the installation and cooperation block 13. In addition, the width of the interlocking channels 14 is greater than the width of the insertion channel 15.

[0053] As Figure 4 and Figure 5As shown, load-bearing plug rods 31 are symmetrically and fixedly arranged on both sides of the movable interlocking plate 3. The load-bearing plug rods 31 are inserted into the through holes 18, and a support carrier plate 32 is fixedly arranged at the other end of the load-bearing plug rods 31. An installation fitting column 33 is fixedly arranged on the support carrier plate 32, and a fitting groove 34 is formed on the upper side of the support carrier plate 32. A fitting connecting rod 35 is hinged on the movable interlocking plate 3. The upper end of the fitting connecting rod 35 is hinged to a moving plate 36. A moving connecting hole 37 is formed in the moving plate 36, and an inner bearing vertical rod 17 is inserted into the moving connecting hole 37. The width of the fitting groove 34 is equal to the width of the insertion channel 15.

[0054] As Figure 7 , Figure 8 and Figure 10 shown, the table body strengthening and fixing mechanism includes an operation block 4, a movable connecting block 5, a rotating column 6, and a movable connecting bar 7. The operation block 4 is inserted into the retraction channel 22, and a connecting rod 41 is fixedly arranged on the operation block 4. A load-bearing plate bar 42 is fixedly arranged on the connecting rod 41. The load-bearing plate bar 42 is inside the installation bottom sleeve 21. Support load holes 43 are symmetrically formed on the load-bearing plate bar 42, and support inner rods 27 are inserted into the support load holes 43. A first spring 44 is sleeved on the support inner rods 27, and both ends of the first spring 44 are respectively fixed on the inner wall of the installation bottom sleeve 21 and the load-bearing plate bar 42.

[0055] As Figure 1 , Figure 7 and Figure 10 shown, load-bearing side plates 45 are symmetrically and fixedly arranged on both sides of the load-bearing plate bar 42. A fitting lever 451 is fixedly arranged at one end of the load-bearing side plate 45 close to the load-bearing plate bar 42. A fitting connecting frame 452 is fixedly arranged at the other end of the load-bearing side plate 45 far from the load-bearing plate bar 42. A driving connecting rod 453 is hinged on the fitting connecting frame 452. A support thin rod 46 is also fixedly arranged at the other end of the load-bearing side plate 45 far from the load-bearing plate bar 42. A fixed plug board 47 is fixedly arranged on the support thin rod 46. A fitting load bar 48 is also fixedly arranged on the support thin rod 46. The fitting load bar 48 is inserted into the fitting channel 24. A first chip pushing bar 49 is fixedly arranged on the fitting load bar 48, and the first chip pushing bar 49 is outside the installation bottom sleeve 21 and is in close contact with one end of the installation bottom sleeve 21. When the positioning table 2 is installed on the device body 1, the first chip pushing bar 49 is in contact with the device body 1.

[0056] As Figure 1 and Figure 7As shown, there are two movable connecting blocks 5, symmetrically arranged on both inner sides of the mounting bottom sleeve 21. The movable connecting blocks 5 are hinged to the driving connecting rod 453. A matching supporting rod 51 is fixedly arranged on the movable connecting block 5. The matching supporting rod 51 is inserted into the side connecting hole 25. A second chip pushing strip 52 is fixedly arranged on the matching supporting rod 51. The second chip pushing strip 52 is located outside the mounting bottom sleeve 21 and is in contact with the side surface of the mounting bottom sleeve 21. When the positioning table 2 is installed on the device body 1, the second chip pushing strip 52 is in contact with the device body 1.

[0057] As Figure 8 and Figure 11 As shown, a bearing 61 is sleeved on the rotating column 6. The bearing 61 is installed in the bearing matching hole 29. A bearing rotating block 62 is fixedly arranged on the rotating column 6. A driven plate strip 63 is fixedly arranged on one side of the bearing rotating block 62. A connecting link plate 64 is fixedly arranged on the other side of the bearing rotating block 62. A connecting plate strip 65 is hinged to the connecting link plate 64. A movable through hole 66 is formed in the connecting plate strip 65. A matching loading plate 67 is fixedly arranged on the connecting plate strip 65. An installation locking column 68 is fixedly arranged on the matching loading plate 67. The installation locking column 68 is inserted into the side jack 26.

[0058] As Figure 6 and Figure 8 As shown, the connecting plate strip 65 is connected to a movable connecting strip 7. First support blocks 71 are symmetrically and fixedly arranged at both ends of the movable connecting strip 7. A second support block 72 is fixedly arranged at the middle position of the movable connecting strip 7. A connecting support rod 73 is fixedly arranged between the first support block 71 and the second support block 72. The connecting support rod 73 is matched with the movable through hole 66. A second spring 74 is sleeved on the connecting support rod 73. Both ends of the second spring 74 are respectively fixed on the second support block 72 and the connecting plate strip 65. A load bearing connecting rod 75 is fixedly arranged on the movable connecting strip 7. The load bearing connecting rod 75 is inserted into the matching connecting hole 23. A third chip pushing strip 76 is fixedly arranged on the load bearing connecting rod 75. The third chip pushing strip 76 is located outside the mounting bottom sleeve 21 and is in contact with the other end of the mounting bottom sleeve 21. When the positioning table 2 is installed on the device body 1, the second chip pushing strip 52 is in contact with the device body 1.

[0059] When installing the positioning table 2, the operating block 4 is pushed into the inner contraction channel 22. As the operating block 4 moves, it will drive the first chip pushing bar 49 to move away from the positioning table 2. At the same time, under the action of the lever 451, it will drive the rotating column 6 to rotate. As the rotating column 6 rotates, it will drive the connecting plate bar 65 to move towards the second support block 72, thereby driving the movable connecting bar 7 to move, causing the third chip pushing bar 76 to move away from the positioning table 2. At the same time, the installation lock post 68 is retracted into the installation bottom sleeve 21. In addition, under the action of the driving connecting rod 453, the second chip pushing bar 52 will be driven to move away from the positioning table 2. After pushing the operating block 4, the installation bottom sleeve 21 is inserted into the installation fitting cavity 11. During the insertion process, the support thin rod 46 will pass through the insertion channel 15 and enter the interlocking channel 14. When the installation bottom sleeve 21 is inserted in place, the operating block 4 is released to reset under the action of the first spring 44. As the operating block 4 resets, it will also drive the first chip pushing bar 49 and the second chip pushing bar 52 to reset. At the same time, under the action of the second spring 74, it will drive the connecting plate bar 65 to reset, thereby causing the third chip pushing bar 76 to reset. When the operating block 4 resets, it will drive the fixed plug board 47 to be inserted into the interlocking channel 14 to realize the fixed connection between the positioning table 2 and the device body 1. At the same time, the fixed plug board 47 will push the support carrier plate 32, thereby driving the movable interlocking plate 3 to move towards the installation fitting block 13. Under the action of the matching connecting rod 35, the moving plate 36 is pushed to move upward. At the same time, the installation fitting post 33 is inserted into the fixed through hole 281 to strengthen the fixed connection between the positioning table 2 and the device body 1. In addition, during the reset process of the connecting plate bar 65, the installation lock post 68 will also be inserted into the installation lock hole 12 to further strengthen the fixed connection between the positioning table 2 and the device body 1, fully ensuring the firmness of the installation of the positioning table 2. When it is necessary to clean the waste chips around the positioning table 2, pushing the operating block 4 can drive the first chip pushing bar 49, the second chip pushing bar 52 and the third chip pushing bar 76 to move away from the positioning table 2, thereby pushing the waste chips around the positioning table 2 away from the positioning table 2 to facilitate cleaning. And when it is necessary to disassemble the positioning table 2, the movement of the first chip pushing bar 49, the second chip pushing bar 52 and the third chip pushing bar 76 away from the positioning table 2 can effectively prevent the waste chips around the positioning table 2 from falling into the installation fitting cavity 11. The installation and disassembly of the positioning table 2 are very convenient and fast, and the operation is simple.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turning device for an internal combustion engine rocker arm assembly, comprising a device body (1), and a positioning table (2) is installed on the device body, characterized in that: The device body (1) is provided with an installation and fitting cavity (11), and the positioning table (2) is positioned through the installation and fitting cavity (11); On both sides of the interior of the installation and fitting cavity (11), installation locking holes (12) are symmetrically arranged, and a table body fixing mechanism is fixedly arranged in the installation and fitting cavity (11), and the positioning table (2) is fixed through the table body fixing mechanism; The table body fixing mechanism includes an installation and fitting block (13) and a movable interlocking plate (3). The installation and fitting block (13) is fixedly arranged in the installation and fitting cavity (11), and on both sides of the upper end of the installation and fitting block (13), interlocking channels (14) are symmetrically arranged; On the upper side of the interlocking channel (14), a plugging channel (15) is arranged, and on the installation and fitting block (13) between the interlocking channels (14), a connecting groove (16) is arranged. An inner supporting vertical rod (17) is fixedly arranged in the connecting groove (16); On both sides of the lower end of the installation and fitting block (13), through holes (18) are also symmetrically arranged, and a movable interlocking plate (3) is installed on the installation and fitting block (13); On both sides of the movable interlocking plate (3), bearing plug rods (31) are symmetrically and fixedly arranged. The bearing plug rods (31) are plugged in the through holes (18), and at the other end of the bearing plug rods (31), a supporting carrier plate (32) is fixedly arranged; On the supporting carrier plate (32), an installation and fitting column (33) is fixedly arranged, and on the upper side of the supporting carrier plate (32), a fitting groove (34) is arranged; A fitting connecting rod (35) is hinged on the movable interlocking plate (3). The upper end of the fitting connecting rod (35) is hinged with a moving plate (36). A moving connecting hole (37) is arranged on the moving plate (36), and the inner supporting vertical rod (17) is plugged in the moving connecting hole (37); At the lower end of the positioning table (2), an installation bottom sleeve (21) is fixedly arranged. When the positioning table (2) is installed on the device body (1), the installation bottom sleeve (21) is plugged in the installation and fitting cavity (11); At one end of the positioning table (2), a retracted channel (22) is arranged. On the installation bottom sleeve (21) below the retracted channel (22), a fitting connecting hole (23) is arranged. At the inner side of one end of the installation bottom sleeve (21) provided with the fitting connecting hole (23), a supporting inner rod (27) is fixedly arranged, and at the other end of the installation bottom sleeve (21), a fitting channel (24) is arranged. On both sides of the installation bottom sleeve (21), side connecting holes (25) and side plug holes (26) are symmetrically arranged; On the installation bottom sleeve (21), a table body strengthening and fixing mechanism is installed. The table body strengthening and fixing mechanism can further strengthen the fixing of the positioning table (2), and the table body strengthening and fixing mechanism can also drive the table body fixing mechanism to move. The table body strengthening and fixing mechanism includes an operating block (4), a movable connecting block (5), a rotating column (6) and a movable connecting strip (7). The operating block (4) is plugged in the retracted channel (22), and on the operating block (4), a connecting link (41) is fixedly arranged. On the connecting link (41), a loading plate strip (42) is fixedly arranged; The two sides of the loading strip (42) are symmetrically fixedly provided with load-bearing side plates (45), and one end of the load-bearing side plate (45) close to the loading strip (42) is fixedly provided with a matching lever (451); A matching connecting frame (452) is fixedly provided on one end of the load-bearing side plate (45) away from the loading strip (42), a driving connecting rod (453) is hingedly connected to the matching connecting frame (452), and a supporting thin rod (46) is also fixedly provided on one end of the load-bearing side plate (45) away from the loading strip (42); A fixed insert plate (47) is fixedly provided on the thin supporting rod (46), and a matching carrier strip (48) is also fixedly provided on the thin supporting rod (46); the matching carrier strip (48) is inserted into the matching channel (24), and a first chip pushing strip (49) is fixedly provided on the matching carrier strip (48); There are two movable connecting blocks (5), which are symmetrically arranged on both sides of the interior of the mounting base sleeve (21), and the movable connecting blocks (5) are hingedly connected to the driving connecting rod (453); A matching support rod (51) is fixedly provided on the movable connecting block (5), the matching support rod is inserted into the side connecting hole (25), and a second chip pushing strip (52) is fixedly provided on the matching support rod (51); A bearing rotating block (62) is fixedly provided on the rotating column (6), a pushed plate strip (63) is fixedly provided on one side of the bearing rotating block (62), a connecting plate (64) is fixedly provided on the other side of the bearing rotating block (62), a connecting plate strip (65) is hingedly connected to the connecting plate (64), the connecting plate strip (65) is connected to a movable connecting strip (7), a bearing connecting rod (75) is fixedly provided on the movable connecting strip (7), the bearing connecting rod (75) is inserted into the matching connecting hole (23), and a third chip pushing strip (76) is fixedly provided on the bearing connecting rod (75).

2. The turning device for a rocker arm assembly of an internal combustion engine according to claim 1, characterized in that: An inner connecting plate (28) is fixedly disposed inside the mounting base sleeve (21), and a fixing through hole (281) is provided on the inner connecting plate (28); A bearing matching hole (29) is symmetrically provided on one end of the inner top surface of the mounting bottom sleeve (21) near the matching connecting hole (23).

3. A turning device for an internal combustion engine rocker arm assembly according to claim 2, characterized in that: The loading strip (42) is located inside the mounting base sleeve (21), and support holes (43) are symmetrically provided on the loading strip (42). A support inner rod (27) is inserted into the support hole (43), and a first spring (44) is sleeved on the support inner rod.

4. A turning device for an internal combustion engine rocker arm assembly according to claim 3, characterized in that: A bearing (61) is sleeved on the rotating column (6), and the bearing (61) is installed in the bearing matching hole (29); The connecting strip (65) is provided with a movable through hole (66), and a matching carrier plate (67) is fixedly provided on the connecting strip (65), and a mounting lock column (68) is fixedly provided on the matching carrier plate (67), and the mounting lock column (68) is inserted into the side insertion hole (26).

5. The turning device for a rocker arm assembly of an internal combustion engine according to claim 4, characterized in that: The two ends of the movable connection strip (7) are symmetrically fixedly provided with first support blocks (71), and the middle position of the movable connection strip (7) is fixedly provided with a second support block (72); A connecting support rod (73) is fixedly arranged between the first support block (71) and the second support block (72). The connecting support rod (73) is matched with the movable through hole (66), and a second spring (74) is sleeved on the connecting support rod (73).

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