Turning machine tool for automobile meshing sleeve

Abstract

The invention relates to the technical field of meshing sleeve turning machine tools, in particular to a turning machine tool for an automobile meshing sleeve, which comprises a rack, a tool rest is mounted on the rack, two support frames are slidably connected to the top surface of the rack, pneumatic push rods are fixed on the opposite sides of the two support frames, and the pneumatic push rods are fixed on the surface of the rack. A motor is fixed to one side of the supporting frame, clamping plates are rotationally connected to the other side of the supporting frame, an output shaft of the motor and the clamping plates are coaxially fixed, and a plurality of clamping columns are fixed to the surfaces of the two clamping plates. And the machining process is simplified, so that the blank can be directly taken out from a warehouse for machining during turning, the machining efficiency is greatly improved, and the machining cost is saved.

Description

Technical Field

[0001] The present invention relates to the field of meshing sleeve turning machine tools, and particularly to a turning machine tool for automotive meshing sleeves. Background Art

[0002] An automotive meshing sleeve is a crucial component in an automotive transmission. It often exists as part of a synchronizer. Its main function is to achieve the transmission and separation of power. By accurately meshing or disengaging with corresponding gears during gear shifting, it connects the gear and the shaft, thereby ensuring that power can be transmitted to the wheels as needed. At the same time, it can also buffer the gear shifting impact and reduce damage to the gear shifting components.

[0003] During the long process of turning automotive meshing sleeves, for some blanks with special outer wall shapes, such as some parts of the outer wall being thick and some being thin, showing an uneven state. From a design perspective, existing standardized clamping parts are originally designed to act on blanks with relatively regular shapes, so they may not be able to adapt to these peculiarly shaped blanks. During the process of clamping these blanks, due to the poor mutual matching between the two, like there are gaps or they cannot fit tightly in terms of size and shape, the clamping force cannot be evenly distributed, which will affect the overall clamping effect. Eventually, in the turning process, the tool cannot accurately machine the blank according to the preset trajectory, affecting the turning accuracy, resulting in problems such as dimensional deviation and insufficient surface finish of the produced meshing sleeves. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a turning machine tool for automotive meshing sleeves.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A turning machine tool for automotive meshing sleeves, including a machine frame. A tool rest is installed on the machine frame. Two support frames are slidably connected to the top surface of the machine frame. On the opposite sides of the two support frames, pneumatic push rods are fixed, and the pneumatic push rods are fixed on the surface of the machine frame. A motor is fixed on one side of the support frame, and a clamping plate is rotatably connected to the other side of the support frame. The output shaft of the motor is coaxially fixed to the clamping plate. A plurality of clamping columns are fixed on the surfaces of the two clamping plates. A rubber pad in the shape of a ring is fixed at the end of the clamping column. A rotating cylinder is inserted into the rubber pad. An airbag is inserted into the rotating cylinder. The airbag has an opening communicating with the inside of the rotating cylinder on the side close to the rotating cylinder. A protruding block is fixed on the inner wall of the rotating cylinder, and the end of the protruding block is triangular. A first air pump is fixed on the outer wall of the rotating cylinder, and the first air pump is connected to the inside of the rotating cylinder through a pipeline. Through holes are formed on the surface of the rubber pad. A driving component is arranged at the end of the rotating cylinder away from the airbag, and the driving component is used to drive the rotating cylinder to rotate.

[0006] Preferably, a limiting ring is fixed on the inner wall of the rubber pad, the driving assembly includes a motor, the motor is fixed on the end face of the clamping column, an elastic telescopic rod is fixed to the end of the output shaft of the motor, and the movable end of the elastic telescopic rod is fixed to the surface of the rotating cylinder.

[0007] Preferably, an extension plate is fixed on the inner wall of the rotating cylinder, the extension plate is arranged on one side of the protruding block, the height of the extension plate is smaller than the height of the protruding block, and a guide groove is formed between the extension plate and the protruding block.

[0008] Preferably, a plurality of mounting holes are provided on the surface of the airbag, a plurality of nozzles are fixed in the mounting holes, a plurality of clearance grooves are provided on the surface of the extension plate, the nozzles are arranged in the clearance grooves, the interior of the extension plate is hollow, a second air pump is fixed on the clamping plate, the second air pump is connected to the interior of the extension plate through a pipeline, and the nozzle is connected to the interior of the extension plate through a hose.

[0009] Preferably, the nozzle includes a cylinder, which is fixed in the mounting hole, an air jet pipe is arranged inside the cylinder, a rotating rod is fixed in the middle of the air jet pipe, the rotating rod is rotatably connected to the inner wall of the cylinder, an air inlet of the air jet pipe is fixedly connected to a hose, a counterweight is fixed on the outer wall of the air jet pipe on the side close to the air outlet, and a flexible shielding cover is fixed between the air outlet of the air jet pipe and the inner wall of the cylinder.

[0010] Preferably, a bracket is fixed inside the jet pipe, a sliding rod is slidably inserted on the surface of the bracket, a limiting plate is fixed to one end of the sliding rod, a sealing plate is fixed to the other end of the sliding rod, a plurality of L-shaped grooves are opened inside the sealing plate, one end of the L-shaped groove is connected to the outer side of the side wall of the sealing plate, and the other end of the L-shaped groove is connected to a side of the sealing plate close to the cylinder.

[0011] Preferably, a slope is provided on the side wall of the airbag, the end surface size of the airbag close to the rotating cylinder is smaller than the end surface size away from the rotating cylinder, and an elastic ring is fixed on the inner wall of the airbag at the slope position.

[0012] Preferably, a clamping ring is fixed on the inner ring surface of the rubber pad, the clamping ring is in a V-shaped structure, and a compression space is provided between the clamping ring and the end surface of the rubber pad.

[0013] Preferably, a plurality of deformation holes are provided on the side wall of the rubber pad, the deformation holes are arranged between the clamping ring and the limiting ring, and the deformation holes are in a diamond shape.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Multiple clamping columns are provided on the clamping plate of the present invention. A rubber pad is provided at the end of the clamping column, and the rubber pad is in flexible contact with the surface of the blank, so that it can better fit the uneven parts of the surface of the blank, whether concave or convex, to achieve a tighter clamping, ensure the turning accuracy. And in the present invention, during the clamping process, the clamping position on the surface of the blank is cleaned, without the need to wipe and clean the entire blank, which is beneficial to simplify the processing flow. When turning, the blank can be directly taken out from the warehouse and processed, greatly improving the processing efficiency and saving the processing cost.

[0016] 2. By improving the nozzle, it can automatically change the direction of the nozzle under the action of gravity, so that the nozzle always blows downward. The specific working method is as follows. A rotatable air pipe is provided inside the cylinder body, and a counterweight is provided at the air outlet position of the air pipe, so that the weights at both ends of the air pipe are different, and the position close to the air outlet always has a tendency to move downward. Since the air pipe is rotatably connected to the inner wall of the cylinder body through a rotating rod, the air pipe is always in an inclined state, and after the position changes, the air outlet of the air pipe is always in a downward inclined state, so as to ensure that during the rotation of the airbag, the air jet position can always be downward.

[0017] 3. By providing an inclined surface on the side wall of the airbag, the end surface of the airbag close to the blank is smaller, so that during the subsequent expansion of the airbag, there is enough expansion space on this side end surface, avoiding the uneven state formed at the raised block and the extension plate position from being difficult to fully expand, and forming wrinkles between the airbag and the blank, which affects the clamping effect. Further, an elastic ring is provided at the inclined surface position, so that the deformation speed of the inclined surface position is less than the deformation speed of the end surface, so as to ensure that the end surface expands first, avoiding the situation that the subsequent expansion is too fast, resulting in a reduction in the expansion space of the end surface position.

[0018] 4. After the traditional scraping cleaning is completed, it is necessary to switch the pressing part for pressing and positioning, which wastes a long time and requires a larger installation space, resulting in fewer clamping points in the same area. However, in this embodiment, the cleaning state and the pressing and positioning state can be freely switched through the deformation of the airbag in a narrow space, and the structure is more compact. Therefore, compared with the traditional scraping cleaning, more clamping points can be set in the same area, and the clamping effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the clamping column and the rubber pad of the present invention.

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the clamping column and the rubber pad of the present invention.

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at position A in

[0023] Figure 5 Schematic diagram of the cross-sectional structure of the nozzle of the present invention

[0024] Figure 6 Schematic diagram of the cross-sectional structure of the air injection pipe of the present invention

[0025] In the figure: 1, frame; 2, tool rest; 3, support frame; 4, pneumatic push rod; 5, motor; 6, clamping plate; 7, clamping column; 8, rubber pad; 9, rotating cylinder; 10, airbag; 11, raised block; 12, first air pump; 13, through hole; 14, limiting ring; 15, motor; 16, elastic telescopic rod; 17, extension plate; 18, diversion groove; 19, mounting hole; 20, nozzle; 21, relief groove; 22, second air pump; 23, cylinder body; 24, air injection pipe; 25, rotating rod; 26, counterweight; 27, shielding cover; 28, bracket; 29, sliding rod; 30, limiting plate; 31, sealing plate; 32, L-shaped groove; 33, inclined surface; 34, elastic ring; 35, pressing ring; 36, compression space; 37, deformation hole. Detailed implementation manners

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0027] As shown in Figures 1 to 6 A turning machine tool for an automotive dog clutch includes a frame 1. A tool rest 2 is installed on the frame 1. Two support frames 3 are slidably connected to the top surface of the frame 1. Pneumatic push rods 4 are fixed to the opposite sides of the two support frames 3, and the pneumatic push rods 4 are fixed to the surface of the frame 1. A motor 5 is fixed to one side of the support frame 3, and a clamping plate 6 is rotatably connected to the other side of the support frame 3. The output shaft of the motor 5 is coaxially fixed to the clamping plate 6. A plurality of clamping columns 7 are fixed to the surfaces of the two clamping plates 6. A ring-shaped rubber pad 8 is fixed to the end of the clamping column 7. A rotating cylinder 9 is inserted into the rubber pad 8. An airbag 10 is inserted into the rotating cylinder 9. One side of the airbag 10 close to the rotating cylinder 9 has an opening communicating with the inside of the rotating cylinder 9. Raised blocks 11 are fixed to the inner wall of the rotating cylinder 9. The ends of the raised blocks 11 are triangular. A first air pump 12 is fixed to the outer wall of the rotating cylinder 9. The first air pump 12 is connected to the inside of the rotating cylinder 9 through a pipeline. Through holes 13 are formed in the surface of the rubber pad 8. A driving assembly is provided at the end of the rotating cylinder 9 away from the airbag 10 for driving the rotating cylinder 9 to rotate.

[0028] Specifically, to solve the problem of unstable clamping of uneven blanks in the prior art, the present invention provides the following embodiments. Place the blank between two clamping plates 6. By activating the pneumatic push rod 4, the support frame 3 is pushed to slide on the surface of the frame 1, thereby driving the two clamping plates 6 to approach each other and clamp and position the blank. Different from traditional clamping parts, multiple clamping columns 7 are provided on the clamping plate 6 of the present invention, and a rubber pad 8 is provided at the end of the clamping column 7. The rubber pad 8 is in flexible contact with the surface of the blank, so as to better fit the uneven parts of the concave or convex surface of the blank and achieve a tighter clamping. Further, some blanks may be directly taken out of the warehouse and start processing. There is still some anti-rust oil remaining on the surface of the blank. Setting up a special anti-rust oil removal process means that corresponding cleaning equipment needs to be equipped and special operators need to be arranged, which will undoubtedly increase production costs. For some processing situations with relatively good tolerance to the influence of anti-rust oil, after weighing the relationship between cost and subsequent processing quality, the enterprise may choose not to remove the anti-rust oil temporarily to save expenses. However, for a meshing sleeve with relatively high processing accuracy, if it is directly clamped, the anti-rust oil may affect the clamping effect. In order to reduce the adverse impact of the anti-rust oil liquid on clamping and save the cost of removing the anti-rust oil, the present invention improves the rubber pad 8. The rubber pad 8 is designed in a circular ring shape. During the initial clamping, the circular ring-shaped rubber pad 8 first comes into close contact with the blank. The initial state inside the rotating cylinder 9 is a negative pressure state, so that the airbag 10 is in close contact with the protruding block 11, forming a protruding scraping position on the surface of the airbag 10. Then, the airbag 10 is driven to rotate by the driving component, so that the protrusions formed on the surface of the airbag 10 can scrape the surface of the blank, causing the impurities and anti-rust oil on the surface of the blank to separate from the blank under the scraping action and flow downward along the surface of the airbag 10, and finally discharged from the through hole 13. After the scraping and cleaning are completed, the first air pump 12 is used to inflate the inside of the rotating cylinder 9, so that the airbag 10 is inflated and expanded and comes into close contact with the surface of the blank to perform extrusion positioning. On the one hand, during the scraping process, the anti-rust oil on the surface of the blank is cleaned, improving the cleanliness of the surface of the blank and being beneficial to ensuring the clamping effect. On the other hand, during the scraping process, most of the surface of the airbag 10 is in a state of being separated from the surface of the blank and not in contact with the anti-rust oil, which is also beneficial to ensuring the cleanliness of the surface of the airbag 10 and coming into contact with the surface of the blank only after the anti-rust oil is cleaned, further ensuring the clamping effect and further ensuring the subsequent turning accuracy. In summary, the present invention simplifies the processing process by cleaning the clamping position on the surface of the blank during the clamping process without wiping and cleaning the entire blank, enabling the blank to be directly taken out of the warehouse for processing during turning, greatly improving the processing efficiency and saving the processing cost. It should be noted that in traditional scraping and cleaning, after the scraping is completed, it is necessary to switch the extrusion part for extrusion positioning, which wastes a long time and requires a larger installation space, resulting in fewer clamping points per unit area. And this embodiment,It can freely switch between the cleaning state and the squeezing and positioning state through the deformation of the airbag 10 in a narrow space, and the structure is more compact. Therefore, compared with the traditional scraping cleaning, more clamping points can be set under the same area, and the clamping effect is better.

[0029] As a further embodiment of the present invention, a limiting ring 14 is fixed on the inner wall of the rubber pad 8. The driving assembly includes a motor 15. The motor 15 is fixed on the end face of the clamping column 7. An elastic telescopic rod 16 is fixed at the end of the output shaft of the motor 15. The movable end of the elastic telescopic rod 16 is fixed on the surface of the rotating cylinder 9.

[0030] Specifically, by starting the motor 15, the motor 15 drives the elastic telescopic rod 16 and the rotating cylinder 9 to rotate, so as to drive the airbag 10 to rotate through the rotating cylinder 9, and scrape and clean the rust-proof liquid on the surface of the blank, completing the driving function. Further, due to the uneven surface of the blank, when the airbag 10 encounters a large protrusion on the surface of the blank, the rotating cylinder 9 can compress the elastic telescopic rod 16 to perform elastic yielding, which is beneficial to protect the airbag 10 and avoid damage to the airbag 10. Furthermore, by fixing the limiting ring 14 on the inner wall of the rubber pad 8, there is a gap between the limiting ring 14 and the rotating cylinder 9, which is convenient for the rotating cylinder 9 to retreat for yielding. And when the airbag 10 is inflated, under the action of air pressure, the volume of the airbag 10 expands, squeezes and positions the blank, and synchronously squeezes the rotating cylinder 9 backward, so that the rotating cylinder 9 contacts the limiting ring 14. Under the blocking action of the limiting ring 14, it can prevent the rotating cylinder 9 from directly transmitting the force to the motor 15, resulting in damage to the motor 15.

[0031] As a further embodiment of the present invention, an extension plate 17 is fixed on the inner wall of the rotating cylinder 9. The extension plate 17 is arranged on one side of the raised block 11. The height of the extension plate 17 is less than the height of the raised block 11. A diversion groove 18 is formed between the extension plate 17 and the raised block 11.

[0032] Specifically, during the scraping and cleaning process of the airbag 10, the rust-proof oil may flow along the surface of the airbag 10, resulting in large-scale pollution of the surface of the airbag 10 and affecting the subsequent clamping effect. To reduce this pollution, in this embodiment, by adding the extension plate 17, a diversion groove 18 is formed on one side of the scraping position of the airbag 10, and the rust-proof oil can flow downward along the diversion groove 18, thereby reducing the large-scale pollution caused to the surface of the airbag 10. And since the height of the extension plate 17 is less than the height of the raised block 11, the airbag 10 in contact with the extension plate 17 does not contact the surface of the blank, which is beneficial to ensuring the cleanliness of this position.

[0033] As a further embodiment of the present invention, a plurality of mounting holes 19 are formed on the surface of the airbag 10, and a plurality of nozzles 20 are fixed in the mounting holes 19. A plurality of relief grooves 21 are formed on the surface of the extension plate 17, and the nozzles 20 are arranged in the relief grooves 21. The interior of the extension plate 17 is in a hollow state. A second air pump 22 is fixed on the clamping plate 6. The second air pump 22 is communicated with the interior of the extension plate 17 through a pipeline, and the nozzles 20 are communicated with the interior of the extension plate 17 through a flexible hose.

[0034] Specifically, in order to reduce the adhesion of the rust preventive oil in the diversion groove 18 and facilitate the rapid discharge of the rust preventive oil in the diversion groove 18, the present invention is provided with nozzles 20. During the cleaning process, by starting the second air pump 22, air is filled into the extension plate 17. The air enters the interior of the nozzles 20 through the flexible hose, and blows the interior of the diversion groove 18. Under the action of the air flow, the flow rate of the rust preventive oil can be promoted, so that it can quickly pass through the diversion groove 18. Further, hot air can be introduced into the diversion groove 18 or a cleaning agent for cleaning the rust preventive oil can be mixed into the air, further accelerating the flow and discharge rate of the rust preventive oil.

[0035] As a further embodiment of the present invention, the nozzle 20 includes a cylinder body 23, the cylinder body 23 is fixed in the mounting hole 19, a jet pipe 24 is arranged inside the cylinder body 23, a rotating rod 25 is fixed in the middle of the jet pipe 24, the rotating rod 25 is rotatably connected to the inner wall of the cylinder body 23, the air inlet of the jet pipe 24 is fixedly communicated with the flexible hose, a counterweight block 26 is fixed on the outer wall of the jet pipe 24 near the air outlet, and a flexible shielding cover 27 is fixed between the air outlet of the jet pipe 24 and the inner wall of the cylinder body 23.

[0036] Specifically, in order to make the antirust oil separate from the diversion groove 18 faster and accelerate the cleaning speed, the spray head 20 can be in a downward inclined state to provide a downward acting force on the antirust oil. However, since the airbag 10 is in a rotating state during the cleaning process, using a fixed inclination angle for the spray head 20 cannot ensure that it is always in a downward inclined state. For example, if the spray head 20 located above is fixed to incline downward and rotates to the lower part, its inclination direction will change to the opposite direction, and it will instead blow air upward. And installing an electronically controlled driving device on each spray head 20 will cost too much. In view of this, the present invention proposes this implementation manner. By improving the spray head 20, it can automatically change the direction of the spray head 20 under the action of gravity, so that the spray head 20 always blows downward. The specific working method is as follows. By arranging a rotatable air injection pipe 24 inside the cylinder body 23 and arranging a counterweight 26 at the air outlet position of the air injection pipe 24, the weights at both ends of the air injection pipe 24 are different, and the position close to the air outlet always has a tendency to move downward. Since the air injection pipe 24 is rotationally connected to the inner wall of the cylinder body 23 through a rotating rod 25, the air injection pipe 24 is always in an inclined state, and after the position changes, the air outlet of the air injection pipe 24 is always in a downward inclined state, so as to ensure that during the rotation of the airbag 10, the air injection position can always face downward.

[0037] As a further implementation of the present invention, a bracket 28 is fixed inside the air injection pipe 24. A slide bar 29 is slidably inserted on the surface of the bracket 28. One end of the slide bar 29 is fixed with a limit plate 30, and the other end of the slide bar 29 is fixed with a plugging plate 31. A plurality of L-shaped grooves 32 are opened inside the plugging plate 31. One end of the L-shaped groove 32 communicates with the outside of the side wall of the plugging plate 31, and the other end of the L-shaped groove 32 communicates with the side of the plugging plate 31 close to the cylinder body 23.

[0038] Specifically, when the diversion groove 18 rotates to the horizontal direction and the spray head 20 is located at the bottom position of the diversion groove 18, the antirust liquid in the diversion groove 18 has a tendency to flow into the spray head 20, which may cause the antirust liquid to enter the spray head 20 and affect the normal use of the spray head 20. To avoid this situation, the present invention arranges a bracket 28 inside the spray head 20. When the diversion groove 18 rotates to the horizontal direction and the spray head 20 is located at the bottom position of the diversion groove 18, under the action of gravity, the plugging plate 31 slides downward and shields the top of the spray head 20, reducing the chance of external antirust oil entering. And the gas in the spray head 20 can enter from one side of the L-shaped groove 32 and spray out from the side wall of the plugging plate 31. By reducing the aperture of the airflow passage, it is also beneficial to increase the spraying speed of the airflow and reduce the chance of external antirust oil entering.

[0039] As a further embodiment of the present invention, an inclined surface 33 is provided on the side wall of the airbag 10. The end face size of the end of the airbag 10 close to the rotating cylinder 9 is smaller than the end face size of the end far from the rotating cylinder 9. An elastic ring 34 is fixed on the inner wall of the airbag 10 at the position of the inclined surface 33.

[0040] Specifically, by providing the inclined surface 33 on the side wall of the airbag 10, the end face of the airbag 10 close to the blank is smaller, so that during the subsequent expansion of the airbag 10, there is sufficient expansion space on this side end face, avoiding the uneven state formed at the positions of the convex blocks 11 and the extension plates 17 that is difficult to fully expand, and forming wrinkles between the airbag 10 and the blank, which affects the clamping effect. Further, an elastic ring 34 is provided at the position of the inclined surface 33, so that the deformation speed at the position of the inclined surface 33 is less than the deformation speed of the end face, thereby ensuring that the end face expands first and avoiding the situation that the expansion speed of the rear side is too fast, resulting in a reduction in the expansion space at the end face position.

[0041] As a further embodiment of the present invention, a pressing ring 35 is fixed on the inner ring surface of the rubber pad 8. The pressing ring 35 has a V-shaped structure, and there is a compression space 36 between the pressing ring 35 and the end face of the rubber pad 8.

[0042] Specifically, during the cleaning process, some anti-rust oil will adhere to the inner ring surface of the rubber pad 8. After the airbag 10 expands, it will squeeze the anti-rust oil on the rubber pad 8 towards the end face position of the rubber pad 8. At this time, since the airbag 10 is in a gradually expanding state and the extrusion effect with the blank is not tight, after the anti-rust oil is squeezed out, it may penetrate between the airbag 10 and the blank, contaminating the surface of the airbag 10 or the blank and affecting the subsequent extrusion positioning effect of the airbag 10. In order to ensure the extrusion effect of the airbag 10, in this embodiment, by providing the pressing ring 35 on the inner ring surface of the rubber pad 8, when the airbag 10 expands, it will first contact the pressing ring 35, seal the gap between the airbag 10 and the rubber pad 8, and then contact the inner wall of the rubber pad 8, thereby avoiding the situation that the anti-rust oil moves towards the end face position of the rubber pad 8 during the extrusion process and ensuring the subsequent extrusion positioning effect of the airbag 10. Further, during the expansion process of the airbag 10, it will push the pressing ring 35, making the pressing ring 35 tend to move towards the side close to the blank. Since there is a compression space 36 between the pressing ring 35 and the end face of the rubber pad 8, the rubber pad 8 has a tendency to be further pressed. The driving force is applied to the rubber pad 8 through the pressing ring 35, further promoting the extrusion positioning effect of the rubber pad 8.

[0043] As a further embodiment of the present invention, a plurality of deformation holes 37 are provided on the side wall of the rubber pad 8. The deformation holes 37 are provided between the pressing ring 35 and the limiting ring 14, and the deformation holes 37 are diamond-shaped.

[0044] Specifically, during the process of the rubber pad 8 extruding the blank, under the extrusion effect, the rubber pad 8 is compressed, causing the deformation hole 37 to close, thereby preventing the upper anti-rust oil from entering the interior of the rubber pad 8 through the deformation hole 37 during the cleaning process. When the cleaning is completed and the airbag 10 starts to expand, the airbag 10 will squeeze the pressing ring 35 and the limiting ring 14, causing the pressing ring 35 and the limiting ring 14 to tend to move away from each other, loosening the rubber pad 8 at the position between the pressing ring 35 and the limiting ring 14, so that the deformation hole 37 opens, facilitating the airbag 10 to discharge the anti-rust oil that drips into the interior of the rubber pad 8 during the cleaning process from the position of the deformation hole 37. And as the airbag 10 expands, it will eventually also block the deformation hole 37 to prevent external anti-rust oil or impurities from entering.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A turning machine tool for an automotive sliding sleeve, comprising a machine frame (1), a tool rest (2) is installed on the machine frame (1), two support frames (3) are slidably connected to the top surface of the machine frame (1), pneumatic push rods (4) are fixed to the opposite sides of the two support frames (3), the pneumatic push rods (4) are fixed on the surface of the machine frame (1), a motor (5) is fixed to one side of the support frame (3), a clamping plate (6) is rotatably connected to the other side of the support frame (3), and the output shaft of the motor (5) is coaxially fixed to the clamping plate (6), characterized in that, A plurality of clamping columns (7) are fixed on the surfaces of the two clamping plates (6). An annular rubber pad (8) is fixed at the end of the clamping column (7). A rotating cylinder (9) is inserted into the rubber pad (8). An airbag (10) is inserted into the rotating cylinder (9). The airbag (10) has an opening communicating with the inside of the rotating cylinder (9) on one side close to the rotating cylinder (9). A raised block (11) is fixed on the inner wall of the rotating cylinder (9). The end of the raised block (11) is triangular. A first air pump (12) is fixed on the outer wall of the rotating cylinder (9). The first air pump (12) is communicated with the inside of the rotating cylinder (9) through a pipeline. Through holes (13) are formed on the surface of the rubber pad (8). A driving assembly is arranged at one end of the rotating cylinder (9) far away from the airbag (10). The driving assembly is used for driving the rotating cylinder (9) to rotate.

2. The turning machine tool for an automotive sliding sleeve according to claim 1, characterized in that, A limiting ring (14) is fixed on the inner wall of the rubber pad (8). The driving assembly includes a motor (15). The motor (15) is fixed on the end face of the clamping column (7). An elastic telescopic rod (16) is fixed at the end of the output shaft of the motor (15). The movable end of the elastic telescopic rod (16) is fixed on the surface of the rotating cylinder (9).

3. A turning machine tool for an automotive sliding sleeve according to claim 1, characterized in that, An extension plate (17) is fixed on the inner wall of the rotating cylinder (9). The extension plate (17) is arranged on one side of the raised block (11). The height of the extension plate (17) is less than that of the raised block (11). A diversion groove (18) is formed between the extension plate (17) and the raised block (11).

4. A turning machine tool for an automotive sliding sleeve according to claim 3, characterized in that A plurality of mounting holes (19) are formed on the surface of the airbag (10). A plurality of nozzles (20) are fixed in the mounting holes (19). A plurality of relief grooves (21) are formed on the surface of the extension plate (17). The nozzles (20) are arranged in the relief grooves (21). The inside of the extension plate (17) is in a hollow state. A second air pump (22) is fixed on the clamping plate (6). The second air pump (22) is communicated with the inside of the extension plate (17) through a pipeline. The nozzles (20) are communicated with the inside of the extension plate (17) through a hose.

5. A turning machine tool for an automotive sliding sleeve according to claim 4, characterized in that, The nozzle (20) includes a cylinder body (23). The cylinder body (23) is fixed in the mounting hole (19). An air injection pipe (24) is arranged inside the cylinder body (23). A rotating rod (25) is fixed in the middle of the air injection pipe (24). The rotating rod (25) is rotatably connected to the inner wall of the cylinder body (23). The air inlet of the air injection pipe (24) is fixedly communicated with the hose. A counterweight block (26) is fixed on the outer wall of the air injection pipe (24) close to the air outlet. A flexible shielding cover (27) is fixed between the air outlet of the air injection pipe (24) and the inner wall of the cylinder body (23).

6. The turning machine tool for an automotive dog clutch according to claim 5, wherein, A bracket (28) is fixedly installed inside the air jet pipe (24). A slide bar (29) is slidably inserted on the surface of the bracket (28). A limiting plate (30) is fixed at one end of the slide bar (29). A sealing plate (31) is fixed at the other end of the slide bar (29). A plurality of L-shaped grooves (32) are formed inside the sealing plate (31). One end of the L-shaped groove (32) communicates with the outer side of the side wall of the sealing plate (31), and the other end of the L-shaped groove (32) communicates with the side of the sealing plate (31) close to the cylinder body (23).

7. A turning machine tool for an automotive sliding sleeve according to claim 1, characterized in that, An inclined surface (33) is formed on the side wall of the airbag (10). The end surface size of the airbag (10) at the end close to the rotating cylinder (9) is smaller than that at the end far from the rotating cylinder (9). An elastic ring (34) is fixed on the inner wall of the airbag (10) at the position of the inclined surface (33).

8. A turning machine tool for an automotive sliding sleeve according to claim 7, characterized in that, A pressing ring (35) is fixed on the inner ring surface of the rubber pad (8). The pressing ring (35) has a V-shaped structure. A compression space (36) is formed between the pressing ring (35) and the end surface of the rubber pad (8).

9. A turning machine tool for an automotive sliding sleeve according to claim 8, characterized in that, A plurality of deformation holes (37) are formed on the side wall of the rubber pad (8). The deformation holes (37) are arranged between the pressing ring (35) and the limiting ring (14). The deformation holes (37) are diamond-shaped.

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