A bolt tightening device for assembling automobile gearboxes

Abstract

The application discloses a bolt tightening equipment convenient for positioning and used for assembling an automobile gearbox and relates to the technical field of gearbox assembly. The bolt tightening equipment convenient for positioning and used for assembling an automobile gearbox comprises a machine body and a machining mechanism. The machining mechanism comprises a rotating base and a mechanical arm. A gas pump is fixedly connected to the top of the small arm of the mechanical arm. A controller is arranged on the surface of the gas pump. A camera is arranged on the side of the surface of the small arm of the mechanical arm. A tightening assembly is arranged at the end of the small arm of the mechanical arm and away from the large arm. A gas pipe is communicated with the gas port at the top of the gas pump. The tightening assembly comprises a driver and a screwing sleeve. The end of the gas pipe away from the gas pump is fixedly connected with the top of the rotating connector. An inner hexagonal blind hole is arranged at the middle of the bottom of the screwing sleeve. A main gas channel is arranged at the center of the top of the screwing sleeve. Branch channels are arranged on the two sides of the screwing sleeve. The bolt tightening equipment is convenient for positioning, accurate in positioning, not prone to skewing and deviation and convenient for bolt tightening.

Description

Technical Field

[0001] This invention relates to the field of gearbox assembly technology, specifically to a bolt tightening device for assembling automotive gearboxes that facilitates positioning. Background Technology

[0002] A car transmission, often called a "gearbox" in automobiles and a "speed changer" in industrial machinery, is a mechanical or hydraulic device that converts mechanical power. To adapt to frequently changing driving conditions and ensure the engine operates under favorable conditions, a transmission is incorporated into the drivetrain. With the continuous development of modern industrial technology and rapid societal progress, the application of automobiles is increasing. The output shaft of a car transmission is a crucial component; its function is to output the power transmitted from the gears within the transmission, thereby driving the wheels and propelling the vehicle. The output shaft needs to penetrate the transmission housing to facilitate power output. During the assembly of the transmission housing, bolts need to be tightened for secure installation; therefore, equipment for tightening bolts is required for car transmission assembly.

[0003] Currently, when tightening bolts used in traditional automotive gearbox assembly, it is inconvenient to position the bolt holes, which can easily lead to deviations. This makes it difficult for the bolts and bolt holes to mate properly, affecting the tightening efficiency and, in severe cases, even damaging the bolts. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A bolt tightening device for assembling automotive transmissions that facilitates positioning, comprising:

[0006] The main body, and the cabinet installed on the side of the main body surface, the main body

[0007] A rotary feeding mechanism is installed in the middle of the top.

[0008] A machining mechanism for tightening bolts used in assembling an automotive gearbox, the machining mechanism being mounted on the side of the machine body surface;

[0009] The processing mechanism includes a rotating base and a robotic arm. The rotating base is fixedly installed on the side of the bottom of the machine body. The robotic arm is installed on the side of the rotating disk on the top of the rotating base. An air pump is fixedly connected to the top of the robotic arm's forearm. A controller is installed on the side of the air pump's surface. A camera is installed on the side of the robotic arm's forearm. A tightening assembly is installed at the end of the robotic arm's forearm away from the upper arm. An air pipe is connected to the air inlet on the top of the air pump. By using two cameras symmetrically installed along the forearm of the robotic arm, information can be collected by capturing images of the threaded holes on the automotive gearbox assembly. Combined with the electrical connection between the cameras and the controller, the information collected by the cameras is transmitted to the controller, which can then process the information to accurately locate the threaded holes on the automotive gearbox assembly, facilitating the mating of bolts with the threaded holes and aiding in subsequent bolt tightening.

[0010] The tightening assembly includes a driver and a tightening sleeve. The driver is mounted on the forearm of the robotic arm, away from the upper arm. The tightening sleeve is rotatably mounted at the center of the driver. A rotating connector is mounted on the top of the tightening sleeve. The end of the air tube away from the air pump is fixedly connected to the top of the rotating connector. A hexagonal blind hole is formed in the middle of the bottom of the tightening sleeve. A strip groove is formed at the corner of the inner side of the hexagonal blind hole. A main air passage is formed at the center of the top of the tightening sleeve. Branch passages are formed on both sides inside the tightening sleeve. By using the suction generated by the air pump port, the air inside the air tube can be drawn in. With the main air passage and the branch passage connected, a negative pressure is generated in the branch passage, which can generate suction on the hexagonal nut head at the top of the bolt inside the hexagonal blind hole, so that the bolt inside the hexagonal blind hole will not fall out at will, improving the efficiency of subsequent assembly of automotive gearboxes.

[0011] Preferably, there are two cameras, which are symmetrically installed along the forearm of the robotic arm. The cameras are electrically connected to the controller. The air pipe is curved and is a flexible tube. By linking the upper and lower arms of the robotic arm, the tightening component can be moved, thereby adjusting its position. Furthermore, by rotating the rotating disk at the top of the rotating base, the entire robotic arm can be rotated to adjust its angle, making it easier to move the tightening component to the top.

[0012] Preferably, the strip grooves are vertically formed and are evenly distributed at the corners of the inner side of the internal hexagonal blind hole.

[0013] The robotic arm of the external equipment places the hexagonal nut head on the top of the bolt into the interior hexagonal blind hole, so that the corner of the hexagonal nut head is embedded in the inside of the strip groove, which can smoothly place the bolt and is not prone to jamming. In addition, the flat surface of the hexagonal nut head fits against the inner wall of the interior hexagonal blind hole, which can position the bolt.

[0014] As the screwing sleeve moves directly above the bolt hole of the car gearbox, and the bolt inside the internal hexagon blind hole aligns with the bolt hole, the bolt comes into contact with the bolt hole under the combined action of the upper and lower arms of the robotic arm. The drive then rotates the screwing sleeve, thereby tightening the bolt.

[0015] Preferably, the rotary connector is installed directly above the screwing sleeve, there are two branch channels, and the two branch channels are symmetrically installed along the central axis at the middle of the internal hexagon blind hole, and the air tube, main airway, branch channels and internal hexagon blind hole are connected.

[0016] Preferably, the rotary feeding mechanism includes a rotary worktable, the central shaft at the bottom of the rotary worktable is rotatably mounted at the middle of the top of the machine body, a rectangular notch is provided at the edge of the top of the rotary worktable, a connecting slide is slidably mounted on the side of the top of the rotary worktable, a reset elastic element is fixedly connected between the top of the connecting slide and the top of the rotary worktable, and a lifting component is installed at the bottom of the connecting slide.

[0017] Preferably, there are three rectangular notches, and the three rectangular notches are evenly distributed on the edge of the top of the rotary table, and the connecting slide is installed vertically.

[0018] Preferably, the lifting assembly includes a flat lifting plate, the top edge of which is fixedly connected to the bottom of a connecting slide bar. A limiting plate is hinged to the edge of the surface of the flat lifting plate. A positioning hole is provided at the top of the limiting plate and at the end away from the connecting slide bar. Clamping teeth are fixedly connected to the edge of the surface of the limiting plate. An external robot arm places the car transmission to be assembled at the rectangular notch position on the side of the rotating worktable, and the car transmission falls onto the top of the flat lifting plate. Through the lifting of the flat lifting plate, the output shaft of the car transmission is inserted into the positioning hole, thereby initially limiting the position of the car transmission, making the position of the car transmission determined and preventing deviation.

[0019] Preferably, the limiting plate is installed at an angle, with the surface of the limiting plate away from the clamping teeth abutting the top of the inner side of the rectangular notch. The clamping teeth are made of rubber. The weight of the car transmission itself applies downward pressure to the flat support plate, and under the sliding connection of the connecting strip, the car transmission and the flat support plate move downward together. The reset elastic element is compressed and undergoes elastic deformation, and the limiting plate is pulled downward by the flat support plate. Under the limitation of the rectangular notch, the two symmetrical limiting plates drive the clamping teeth to rotate towards the surface of the car transmission to adjust the angle, so that the clamping teeth are squeezed, which fills the gap between the limiting plate and the surface of the car transmission, thereby clamping and fixing the car transmission, preventing the car transmission from tilting or tipping, and further facilitating the subsequent tightening and assembly of the bolts on the car transmission.

[0020] Preferably, a discharge mechanism is installed on the side of the top of the machine body. The discharge mechanism includes a wedge-shaped seat, the bottom of which is fixedly installed on the side of the top of the machine body. A strip-shaped pusher plate is fixedly connected to the side of the inclined surface of the top of the wedge-shaped seat. A support roller is rotatably installed on the inclined surface of the top of the wedge-shaped seat, away from the strip-shaped pusher plate. A connecting belt is installed in the middle of the outer surface of the support roller. The output end of the car gearbox passes through a positioning hole, so that the bottom end of the car gearbox output end contacts the surface of the connecting belt, and the flat support plate... The edge of the surface contacts the strip pusher plate. As the rotary table continues to rotate, the flat lifting plate is pushed upward by the strip pusher plate. The friction between the bottom end of the car gearbox output and the connecting belt, supported by the rolling of the support rollers, causes the connecting belt to run, which is less likely to cause wear to the bottom end of the car gearbox output. The strip pusher plate pushes the flat lifting plate upward, and the car gearbox on the top of the flat lifting plate moves upward, making it easier for the robot arm of the external equipment to remove and unload the car gearbox.

[0021] Preferably, the strip pusher plate is installed at an angle, and the connecting belt is installed at an angle.

[0022] This invention provides a bolt tightening device for automotive gearbox assembly that facilitates positioning. It offers the following advantages:

[0023] I. This easy-to-position automotive gearbox assembly bolt tightening device uses two symmetrical cameras to capture information about the threaded holes on the automotive gearbox assembly, ensuring accurate acquisition of the threaded hole position information. Combined with the electrical connection between the cameras and the controller, the information acquired by the cameras is transmitted to the controller, which processes the information to accurately position the threaded holes on the automotive gearbox assembly. This facilitates the mating of the bolts with the threaded holes, aiding in subsequent bolt tightening.

[0024] II. This easy-to-position automotive gearbox assembly bolt tightening equipment can move the tightening component by linking the upper and lower arms of the robotic arm, thereby adjusting the position of the tightening component. Furthermore, by rotating the rotating disk on the top of the rotating base, the entire robotic arm can be rotated to adjust the angle, making it easier to move the entire tightening component to the top.

[0025] Third, this easy-to-position automotive gearbox assembly bolt tightening device utilizes the suction force generated by the air pump port to draw in the gas inside the air pipe. With the main air passage and branch passage connected, a negative pressure is generated in the branch passage, which can generate suction force on the hexagonal nut head at the top of the bolt inside the internal hexagonal blind hole. This prevents the bolt inside the internal hexagonal blind hole from falling out randomly, improving the efficiency of subsequent automotive gearbox assembly.

[0026] IV. This easy-to-position automotive gearbox assembly bolt tightening device places the hexagonal nut head on top of the bolt into the interior hexagonal blind hole, so that the corner of the hexagonal nut head is embedded in the strip groove, which allows for smooth bolt placement and prevents jamming. The flat surface of the hexagonal nut head fits against the inner wall of the interior hexagonal blind hole, thus positioning the bolt. As the screwing sleeve moves to directly above the bolt hole of the automotive gearbox, the bolt inside the interior hexagonal blind hole is aligned with the bolt hole. Under the combined action of the upper and lower arms of the robotic arm, the bolt contacts the bolt hole, and the drive drives the screwing sleeve to rotate, thereby tightening the bolt.

[0027] 5. This easy-to-position automotive transmission assembly bolt tightening device places the automotive transmission to be assembled at the rectangular notch position, and the automotive transmission falls onto the top of the flat support plate. Through the support of the flat support plate, the output shaft of the automotive transmission is inserted into the positioning hole, thereby initially limiting the position of the automotive transmission, so that the position of the automotive transmission is determined and it is not easy for it to deviate.

[0028] VI. This easy-to-position automotive transmission assembly bolt tightening device utilizes the weight of the automotive transmission itself to apply downward pressure to the flat support plate, causing the automotive transmission and the flat support plate to move downward together. The reset elastic element is compressed and undergoes elastic deformation, and the limiting plate is pulled downward by the flat support plate. Under the limitation of the rectangular notch, the two symmetrical limiting plates drive the clamping teeth to rotate towards the surface of the automotive transmission to adjust the angle. This allows the clamping teeth to be squeezed, thus filling the gap between the limiting plate and the surface of the automotive transmission, thereby clamping and fixing the automotive transmission. This prevents the automotive transmission from tilting or tipping over, further facilitating the subsequent tightening and assembly of the bolts on the automotive transmission.

[0029] VII. This easy-to-position automotive gearbox assembly bolt tightening equipment utilizes the upward movement of a flat lifting plate driven by a strip pusher plate. The friction between the bottom of the automotive gearbox output end and the connecting belt, supported by the rolling of the support rollers, causes the connecting belt to rotate, minimizing wear on the bottom of the automotive gearbox output end. The strip pusher plate pushes the flat lifting plate upward, causing the automotive gearbox on top of the flat lifting plate to move upward, facilitating the removal and unloading of the automotive gearbox by the robotic arm of external equipment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the bolt tightening device for assembling an automotive gearbox, which is designed for easy positioning according to the present invention.

[0031] Figure 2 A top-view structural schematic diagram of the bolt tightening device for assembling an automotive gearbox, which facilitates positioning according to the present invention.

[0032] Figure 3 This is a schematic diagram of the connection structure between the processing mechanism and the machine body of the present invention;

[0033] Figure 4 This is a schematic diagram of the overall structure of the processing mechanism of the present invention;

[0034] Figure 5 This is a cross-sectional view of the internal structure of the screwing sleeve of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection structure between the rotary feeding mechanism and the machine body of the present invention;

[0036] Figure 7 This is a schematic diagram of the overall structure of the rotary feeding mechanism of the present invention;

[0037] Figure 8 This is a schematic diagram of the overall structure of the lifting component of the present invention;

[0038] Figure 9 This is a schematic diagram of the connection structure between the unloading mechanism and the machine body of the present invention.

[0039] In the diagram: 1. Machine body; 2. Cabinet; 3. Rotary feeding mechanism; 4. Machining mechanism; 5. Unloading mechanism; 31. Rotary worktable; 32. Rectangular notch; 33. Connecting slide bar; 34. Reset elastic element; 35. Lifting assembly; 351. Flat lifting plate; 352. Positioning hole; 353. Limiting plate; 354. Clamping teeth; 41. Rotating base; 42. Robotic arm; 43. Air pump; 44. Controller; 45. Camera; 46. Tightening assembly; 47. Air pipe; 461. Driver; 462. Tightening sleeve; 463. Rotating connector; 464. Hexagonal blind hole; 465. Strip groove; 466. Main air duct; 467. Branch duct; 51. Wedge seat; 52. Strip pusher plate; 53. Support roller; 54. Connecting belt. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution:

[0042] A bolt tightening device for assembling automotive transmissions that facilitates positioning, comprising:

[0043] The main body 1, and the cabinet 2 installed on the side of the surface of the main body 1.

[0044] A rotary feeding mechanism 3 is installed in the middle of the top;

[0045] Machining mechanism 4 is used to tighten the bolts of the automobile gearbox assembly. Machining mechanism 4 is installed on the side of the surface of the body 1.

[0046] The processing mechanism 4 includes a rotating base 41 and a robotic arm 42. The rotating base 41 is fixedly installed on the side of the bottom surface of the machine body 1. The robotic arm 42 is installed on the side of the rotating disk on the top of the rotating base 41. An air pump 43 is fixedly connected to the top of the forearm of the robotic arm 42. A controller 44 is installed on the side of the surface of the air pump 43. A camera 45 is installed on the side of the surface of the forearm of the robotic arm 42. A tightening component 46 is installed at the end of the forearm of the robotic arm 42 away from the upper arm. An air port on the top of the air pump 43 is connected to an air pipe 47. By using two cameras 45 symmetrically installed along the forearm of the robotic arm 42, information can be collected by taking pictures of the threaded holes on the automotive gearbox assembly. Combined with the electrical connection between the cameras 45 and the controller 44, the information collected by the cameras 45 is transmitted to the controller 44. The controller 44 can process the information to accurately locate the threaded holes on the automotive gearbox assembly, which facilitates the mating of the bolts and the threaded holes and helps to tighten the bolts later.

[0047] There are two cameras 45, and the two cameras 45 are symmetrically installed along the forearm of the robotic arm 42. The cameras 45 are electrically connected to the controller 44. The air tube 47 is curved and flexible.

[0048] By linking the upper and lower arms of the robotic arm 42, the tightening component 46 can be moved, thereby adjusting the position of the tightening component 46. Furthermore, by rotating the rotating disk on the top of the rotating base 41, the robotic arm 42 can be rotated as a whole to adjust the angle, thereby moving the tightening component 46 as a whole to the top.

[0049] The tightening assembly 46 includes a driver 461 and a tightening sleeve 462. The driver 461 is mounted on the forearm of the robotic arm 42, away from the upper arm. The tightening sleeve 462 is rotatably mounted at the center of the driver 461. A rotating connector 463 is mounted on the top of the tightening sleeve 462. The end of the air pipe 47 away from the air pump 43 is fixedly connected to the top of the rotating connector 463. A hexagonal blind hole 464 is formed in the middle of the bottom of the tightening sleeve 462. A strip groove 465 is formed at the corner of the inner side of the hexagonal blind hole 464. A main air passage 466 is provided at the center of the top of the movable sleeve 462. Branch passages 467 are provided on both sides inside the sleeve 462 when it is turned. When the operator turns on the air pump 43, the suction generated by the air port of the air pump 43 can be used to draw the gas inside the air pipe 47. With the connection between the main air passage 466 and the branch passage 467, a negative pressure is generated in the branch passage 467, which can generate suction on the hexagonal nut head at the top of the bolt inside the internal hexagonal blind hole 464, so that the bolt inside the internal hexagonal blind hole 464 will not fall out at will.

[0050] The strip-shaped groove 465 is vertically opened and evenly distributed at the corners of the inner side of the internal hexagon blind hole 464. The robotic arm of the external equipment places the hexagonal nut head at the top of the bolt into the internal hexagon blind hole 464, so that the corner of the hexagonal nut head is embedded in the strip-shaped groove 465, which allows the bolt to be placed smoothly and is not prone to jamming. The flat surface of the hexagonal nut head fits against the inner wall of the internal hexagon blind hole 464, which can position the bolt. As the screwing sleeve 462 moves to move directly above the bolt hole of the car gearbox, the bolt inside the internal hexagon blind hole 464 is aligned with the bolt hole. Under the joint action of the upper arm and the lower arm of the robotic arm 42, the bolt contacts the bolt hole, and the driver 461 drives the screwing sleeve 462 to rotate, tightening the bolt.

[0051] The rotating connector 463 is installed directly above the screwing sleeve 462. There are two branch channels 467, and the two branch channels 467 are symmetrically installed along the central axis in the middle of the internal hexagon blind hole 464. The air tube 47, the main airway 466, the branch channels 467 and the internal hexagon blind hole 464 are connected.

[0052] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 8 As shown:

[0053] The rotary feeding mechanism 3 includes a rotary worktable 31. The central shaft at the bottom of the rotary worktable 31 is rotatably mounted at the middle of the top of the machine body 1. A rectangular notch 32 is provided at the edge of the top of the rotary worktable 31. A connecting slide bar 33 is slidably mounted on the side of the top of the rotary worktable 31. A reset elastic element 34 is fixedly connected between the top of the connecting slide bar 33 and the top of the rotary worktable 31. A lifting assembly 35 is installed at the bottom of the connecting slide bar 33.

[0054] There are three rectangular notches 32, and the three rectangular notches 32 are evenly distributed on the top edge of the rotary table 31, and the connecting slide bar 33 is installed vertically.

[0055] The lifting assembly 35 includes a flat lifting plate 351. The top edge of the flat lifting plate 351 is fixedly connected to the bottom of the connecting slide bar 33. A limiting plate 353 is hinged to the edge of the surface of the flat lifting plate 351. A positioning hole 352 is provided at the top of the limiting plate 353 and at the end away from the connecting slide bar 33. A clamping tooth 354 is fixedly connected to the edge of the surface of the limiting plate 353. The external robot arm places the car transmission to be assembled at the rectangular notch 32 on the side of the rotating worktable 31, and the car transmission falls onto the top of the flat lifting plate 351. Through the lifting of the flat lifting plate 351, the output shaft of the car transmission is inserted into the positioning hole 352, thereby initially limiting the car transmission.

[0056] The limiting plate 353 is installed at an angle, and the surface of the limiting plate 353 and the side away from the clamping teeth 354 are in contact with the top of the inner side of the rectangular notch 32. The clamping teeth 354 are made of rubber.

[0057] The car transmission uses its own weight to apply downward pressure to the flat support plate 351. Under the sliding connection of the connecting strip 33, the car transmission and the flat support plate 351 move downward together. The reset elastic member 34 is compressed and undergoes elastic deformation. The limiting plate 353 is pulled downward by the flat support plate 351. Under the limitation of the rectangular notch 32, the two symmetrical limiting plates 353 drive the clamping teeth 354 to rotate closer to the surface of the car transmission to adjust the angle. This allows the clamping teeth 354 to be squeezed, thus filling the gap between the limiting plate 353 and the surface of the car transmission, and clamping and fixing the car transmission.

[0058] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 9 As shown:

[0059] A material unloading mechanism 5 is installed on the side of the top of the machine body 1. The material unloading mechanism 5 includes a wedge seat 51. The bottom of the wedge seat 51 is fixedly installed on the side of the top of the machine body 1. A strip pusher plate 52 is fixedly connected to the side of the inclined surface of the top of the wedge seat 51. A support roller 53 is rotatably installed on the inclined surface of the top of the wedge seat 51 and on the side away from the strip pusher plate 52. A connecting belt 54 is installed in the middle of the outer circular surface of the support roller 53.

[0060] After the bolts on the car transmission are tightened and the assembly is completed, the rotary worktable 31 can be rotated again to remove the assembled car transmission. The output end of the car transmission passes through the positioning hole 352, so that the bottom end of the output end of the car transmission contacts the surface of the connecting belt 54, and the edge of the surface of the flat lifting plate 351 contacts the strip pusher plate 52. As the rotary worktable 31 continues to rotate, the flat lifting plate 351 is pushed upward by the strip pusher plate 52. The friction generated between the bottom end of the car transmission output end and the connecting belt 54, under the rolling support of the support roller 53, makes the connecting belt 54 run, which does not easily cause wear to the bottom end of the car transmission output end. The strip pusher plate 52 pushes the flat lifting plate 351 upward, and the car transmission on the top of the flat lifting plate 351 moves upward. The car transmission is then removed and unloaded by the robot arm of the external equipment.

[0061] The strip pusher plate 52 is installed at an angle, and the connecting belt 54 is installed at an angle.

[0062] In use, the external robotic arm first places the car transmission to be assembled at the rectangular notch 32 on the side of the rotary worktable 31, and the car transmission falls onto the top of the flat lifting plate 351. With the support of the flat lifting plate 351, the output shaft of the car transmission is inserted into the positioning hole 352, thereby initially limiting the car transmission.

[0063] Furthermore, the car transmission itself exerts downward pressure on the flat support plate 351, and under the sliding connection of the connecting strip 33, the car transmission and the flat support plate 351 move downward together. The reset elastic member 34 is compressed and undergoes elastic deformation, and the limiting plate 353 is pulled downward together by the flat support plate 351. Under the limitation of the rectangular notch 32, the two symmetrical limiting plates 353 drive the clamping teeth 354 to rotate towards the surface of the car transmission to adjust the angle, so that the clamping teeth 354 are squeezed to fill the gap between the limiting plate 353 and the surface of the car transmission, thus clamping and fixing the car transmission.

[0064] At this time, the staff will start the rotating worktable 31 to rotate and drive the fixed car gearbox to rotate and load the material, so that the car gearbox moves closer to the robotic arm 42. When the rotating worktable 31 moves the car gearbox to the position of the large arm of the robotic arm 42, the worktable 31 can be stopped.

[0065] At the same time, the robotic arm of the external equipment places the hexagonal nut head on the top of the bolt into the interior hexagonal blind hole 464, so that the corner of the hexagonal nut head is embedded into the interior of the strip groove 465, which can smoothly place the bolt and prevent jamming. In addition, the flat surface of the hexagonal nut head fits against the inner wall of the interior hexagonal blind hole 464 to position the bolt.

[0066] Furthermore, the staff turned on the air pump 43 to work. The suction generated by the air port of the air pump 43 can draw in the gas inside the air pipe 47. With the connection between the main air channel 466 and the branch channel 467, a negative pressure is generated in the branch channel 467, which can generate suction on the hexagonal nut head at the top of the bolt inside the internal hexagonal blind hole 464, so that the bolt inside the internal hexagonal blind hole 464 will not fall out at will.

[0067] By symmetrically installing two cameras 45 along the forearm of the robotic arm 42, the two symmetrical cameras 45 can capture information about the threaded holes on the automotive gearbox assembly. Combined with the electrical connection between the cameras 45 and the controller 44, the information captured by the cameras 45 is transmitted to the controller 44, which can then process the information to accurately locate the threaded holes on the automotive gearbox assembly, facilitating the mating of bolts and threaded holes.

[0068] Furthermore, by linking the upper arm and the lower arm on the robotic arm 42, the tightening component 46 can be moved, thereby adjusting the position of the tightening component 46. By rotating the rotating disk on the top of the rotating base 41, the robotic arm 42 can be rotated as a whole to adjust the angle, thereby moving the tightening component 46 as a whole to the top.

[0069] Moreover, as the screwing sleeve 462 moves to the top of the car gearbox bolt hole, and the bolt inside the internal hexagon blind hole 464 is aligned with the bolt hole, the bolt comes into contact with the bolt hole under the combined action of the upper and lower arms of the robotic arm 42. The screwing sleeve 462 is then rotated by the driver 461 to tighten the bolt.

[0070] After the car transmission is assembled, the rotary table 31 is rotated again to remove the assembled car transmission. The output end of the car transmission passes through the positioning hole 352, so that the bottom end of the output end of the car transmission contacts the surface of the connecting belt 54, and the edge of the surface of the flat lifting plate 351 contacts the strip pusher plate 52. As the rotary table 31 continues to rotate, the flat lifting plate 351 is pushed upward by the strip pusher plate 52. The friction between the bottom end of the car transmission output end and the connecting belt 54, under the rolling support of the support roller 53, makes the connecting belt 54 run, which is not easy to cause wear to the bottom end of the car transmission output end. The strip pusher plate 52 pushes the flat lifting plate 351 upward, and the car transmission on the top of the flat lifting plate 351 moves upward. The car transmission is then removed and unloaded by the robot arm of the external equipment.

[0071] As the car transmission moves out of the rectangular notch 32, the pressing pressure on the flat support plate 351 disappears, and under the elastic force of the reset elastic member 34, the connecting slide bar 33 drives the flat support plate 351 to move upward to reset, making it easier to place the new car transmission on top of the flat support plate 351 again, which is helpful for batch assembly.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bolt tightening device for assembling automotive gearboxes that facilitates positioning, characterized in that, include: The main body (1) and the cabinet (2) installed on the side of the surface of the main body (1), the main body (1) A rotary feeding mechanism (3) is installed in the middle of the top. The processing mechanism (4) is used to tighten the bolts of the automobile gearbox assembly. The processing mechanism (4) is installed on the side of the surface of the body (1). The processing mechanism (4) includes a rotating base (41) and a robotic arm (42). The rotating base (41) is fixedly installed on the side of the bottom of the surface of the machine body (1). The robotic arm (42) is installed on the side of the rotating disk at the top of the rotating base (41). An air pump (43) is fixedly connected to the top of the forearm of the robotic arm (42). A controller (44) is installed on the side of the surface of the air pump (43). A camera (45) is installed on the side of the surface of the forearm of the robotic arm (42). A tightening assembly (46) is installed at the end of the forearm of the robotic arm (42) away from the upper arm. An air port at the top of the air pump (43) is connected to an air pipe (47). The tightening assembly (46) includes a driver (461) and a tightening sleeve (462). The driver (461) is mounted on the forearm of the robotic arm (42) at the end away from the upper arm. The tightening sleeve (462) is rotatably mounted at the center of the driver (461). A rotating connector (463) is mounted on the top of the tightening sleeve (462). The end of the air tube (47) away from the air pump (43) is fixedly connected to the top of the rotating connector (463). (462) A hexagonal blind hole (464) is provided in the middle of the bottom. A strip groove (465) is provided at the corner of the inner side of the hexagonal blind hole (464). A main air passage (466) is provided at the center of the top of the screwing sleeve (462). Branch passages (467) are provided on both sides inside the screwing sleeve (462). The strip groove (465) is vertically opened and the strip groove (465) is evenly distributed at the corner of the inner side of the hexagonal blind hole (464). The rotary feeding mechanism (3) includes a rotary worktable (31). The central shaft at the bottom of the rotary worktable (31) is rotatably mounted at the middle of the top of the machine body (1). A rectangular notch (32) is provided at the edge of the top of the rotary worktable (31). A connecting slide (33) is slidably mounted on the side of the top of the rotary worktable (31). A reset elastic element (34) is fixedly connected between the top of the connecting slide (33) and the top of the rotary worktable (31). A lifting component (35) is installed at the bottom of the connecting slide (33). The lifting assembly (35) includes a flat lifting plate (351), the top side of the flat lifting plate (351) is fixedly connected to the bottom of the connecting slide (33), a limiting plate (353) is hinged to the side of the surface of the flat lifting plate (351), a positioning hole (352) is provided at the top of the limiting plate (353) and at the end away from the connecting slide (33), and a clamping tooth (354) is fixedly connected to the side of the surface of the limiting plate (353).

2. The bolt tightening device for assembling an automotive gearbox, which facilitates positioning, as described in claim 1, is characterized in that: There are two cameras (45), and the two cameras (45) are symmetrically installed along the forearm of the robotic arm (42). The cameras (45) are electrically connected to the controller (44). The air pipe (47) is curved and is a flexible tube.

3. The bolt tightening device for assembling an automotive gearbox, which facilitates positioning, as described in claim 1, is characterized in that: The rotating connector (463) is installed directly above the screwing sleeve (462). There are two branch channels (467), and the two branch channels (467) are symmetrically installed along the central axis at the middle of the internal hexagon blind hole (464). The air tube (47), the main airway (466), the branch channel (467) and the internal hexagon blind hole (464) are connected.

4. The bolt tightening device for assembling an automotive gearbox, which facilitates positioning, as described in claim 1, is characterized in that: There are three rectangular notches (32), and the three rectangular notches (32) are evenly distributed on the edge of the top of the rotary table (31), and the connecting slide (33) is installed vertically.

5. The bolt tightening device for assembling an automotive gearbox, which facilitates positioning, as described in claim 1, is characterized in that: The limiting plate (353) is installed at an angle, and the surface of the limiting plate (353) away from the clamping teeth (354) is in contact with the top of the inner side of the rectangular notch (32). The clamping teeth (354) are made of rubber.

6. The bolt tightening device for assembling an automotive gearbox, which facilitates positioning, as described in claim 1, is characterized in that: A material unloading mechanism (5) is installed on the side of the top of the machine body (1). The material unloading mechanism (5) includes a wedge seat (51). The bottom of the wedge seat (51) is fixedly installed on the side of the top of the machine body (1). A strip pusher plate (52) is fixedly connected to the side of the inclined surface of the top of the wedge seat (51). A support roller (53) is rotatably installed on the inclined surface of the top of the wedge seat (51) and on the side away from the strip pusher plate (52). A connecting belt (54) is installed in the middle of the outer surface of the support roller (53).

7. The bolt tightening device for assembling an automotive gearbox, which facilitates positioning, as described in claim 6, is characterized in that: The strip pusher plate (52) is installed at an angle, and the connecting strip (54) is installed at an angle.

Images