An automatic cross shaft assembly line

Abstract

The present invention discloses an automatic cross-shaft assembly line, comprising a cross-shaft feeding device, a flange fork feeding device, a bearing sleeve feeding device, a first press machine and a second press machine, wherein a flange fork transfer mechanism capable of transferring the flange fork to the first press machine is arranged above the flange fork feeding device, a cross-shaft transfer mechanism capable of transferring the cross-shaft to the first press machine is arranged above the cross-shaft feeding device, and the first press machine can press-fit the cross-shaft and the flange fork to form a workpiece A; a press-fit transfer mechanism capable of transferring the workpiece A to the second press machine is arranged above the second press machine, a manipulator transfer mechanism is arranged between the first press machine and the bearing sleeve feeding device, the manipulator transfer mechanism can transfer the bearing sleeve to the second press machine, and the second press machine press-fits the cross-shaft and the bearing sleeve. The present invention has the following advantages and effects: realizing automatic assembly, high efficiency, stable assembly accuracy and quality, and reducing labor costs.

Description

Technical Field

[0001] The invention relates to a cross shaft processing line, in particular to an automatic cross shaft assembly line. Background Art

[0002] As a key component in the automobile transmission system, the cross-axis universal joint assembly can realize variable-angle power transmission and is used to change the position and direction of the transmission axis. It is the "joint" part of the automobile steering and transmission drive system. Among them, the cross-axis assembly, as the main part of the cross-axis universal joint, is an indispensable part of the cross-axis universal joint. The quality of the cross-axis assembly directly affects the fatigue life of the cross-axis universal joint and affects the safety performance and reliability of the entire vehicle.

[0003] like Figure 1 As shown, the existing cross shaft assembly includes a bearing sleeve, a cross shaft and a flange fork. A plurality of flange mounting holes are provided on one side of the flange fork. The flange fork and the bearing sleeve are provided with clamping holes that can be matched with the cross shaft. The cross shaft is respectively hinged in the clamping holes of the bearing sleeve and the flange fork to form a rotating joint. For example, the cross shaft universal coupling disclosed in the Chinese patent number CN103047305A.

[0004] At present, the assembly process of the cross shaft assembly is mostly completed by manual assembly. This method leads to low assembly efficiency of the cross shaft assembly, unstable assembly quality and certain fluctuations. The traditional cross shaft assembly process has become a bottleneck process in the production of the cross shaft assembly. At the same time, with the increase in labor costs, the assembly production cost of the cross shaft assembly has increased day by day, resulting in a direct decline in the economic benefits of the enterprise, and thus needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic cross-axis assembly line, which realizes automated assembly with high efficiency, stable assembly accuracy and quality, reduces labor costs, and greatly increases the economic benefits of the enterprise.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an automatic cross shaft assembly line, comprising a cross shaft feeding device, a flange fork feeding device, a bearing sleeve feeding device, a first press machine and a second press machine, a flange fork transfer mechanism capable of transferring the flange fork to the first press machine is arranged above the flange fork feeding device, a cross shaft transfer mechanism capable of transferring the cross shaft to the first press machine is arranged above the cross shaft feeding device, and the first press machine can press the cross shaft and the flange fork to form a workpiece A;

[0007] A press transfer mechanism is arranged above the second press machine, which can transfer the workpiece A completed on the first press machine to the second press machine. A manipulator transfer mechanism is arranged between the first press machine and the bearing sleeve feeding device. The manipulator transfer mechanism can transfer the bearing sleeve on the bearing sleeve feeding device to the second press machine, and the second press machine will press the cross shaft and the bearing sleeve.

[0008] The present invention is further configured as follows: the first press machine includes a belt conveyor, the belt conveyor is provided with a plurality of support plates, each of the support plates is provided with a plurality of first limit rods that can be engaged with the flange mounting holes on the flange fork, and the middle part of the belt conveyor is provided with an adaptive adjustment supporter that can be engaged with the cross-axis transfer mechanism, and the adaptive adjustment supporter can adjust the position height of the cross-axis to a position state that is engaged with the engaging holes on the flange fork;

[0009] A first vibration plate for transmitting bearings is provided on both sides of the belt conveyor, and a first hydraulic cylinder for pressing the bearings into the clamping holes on the flange fork is provided at the discharge port of each of the first vibration plates, so that the inner and outer surfaces of the bearings respectively produce interference fits with the cross shaft and the inner wall of the clamping hole to press-fit and form workpiece A.

[0010] The present invention is further configured as follows: the adaptive adjustment support device includes a support frame arranged on the belt conveyor, the support frame is provided with a pressure cylinder, the output end of the pressure cylinder passes through the support frame and is fixedly connected to a drive plate for lifting the cross shaft, so that the two ends of the cross shaft can respectively cooperate with the clamping holes on the flange fork.

[0011] The present invention is further configured as follows: both ends of the belt conveyor are provided with a first clip spring press-fitting machine capable of installing the clip spring in the clip-fitting hole;

[0012] Each of the first retaining spring press machines includes a positioning plate, the positioning plate has a built-in guide channel that can match the retaining spring, one side of the positioning plate is provided with a discharge hole that can match with the clamping hole on the flange fork, one end of the discharge hole is connected with the guide channel, and one side of the positioning plate is provided with a retaining spring hydraulic driving component, one end of the retaining spring hydraulic driving component penetrates into the positioning plate and abuts against the retaining spring, and drives the retaining spring to pass through the discharge hole and engage with the clamping hole.

[0013] The present invention is further configured as follows: a fixing plate is provided at the upper end of the clamping spring hydraulic driving member, a slide groove is provided through one side of the fixing plate, a push plate is slidably connected in the slide groove, a storage box for storing the clamping spring is provided on the fixing plate, and the bottom of the storage box is connected to the slide groove;

[0014] The upper end surface of the push plate is provided with a step that can cooperate with a single retaining spring, and one end of the push plate is provided with a third driving member that can drive the push plate to reciprocate in the slide groove, and the upper end surface of the positioning plate is provided with an inclined slide connected to the guide channel, and one end of the inclined slide cooperates with the fixed plate.

[0015] The present invention is further configured as follows: the second press comprises a screw slide conveyor, a movable seat is slidably connected to the screw slide conveyor, a limit plate is arranged on one side of the movable seat, a plurality of second limit rods which can be engaged with the flange mounting holes on the flange fork are arranged on the limit plate, second vibration plates for transmitting bearings are arranged on both sides of the screw slide conveyor, a second hydraulic cylinder for setting the bearing sleeve on the cross shaft is arranged at the discharge port position of each second vibration plate, a bearing sleeve support base plate is arranged on one side of the movable seat, and the bearing sleeve support base plate is arranged vertically to the limit plate.

[0016] The present invention is further configured as follows: the press-fitting transfer mechanism comprises two second upright posts arranged on the ground, the two second upright posts are respectively located on both sides of the second press-fitting machine and the first press-fitting machine, the top ends of the two first upright posts are fixedly connected to the same second horizontal guide rail, a second movable slider is slidably connected to the second horizontal guide rail, and a fifth driving member capable of driving the second movable slider to move on the second horizontal guide rail is arranged at one end of the second horizontal guide rail;

[0017] A second movable arm is slidably connected to one side of the second movable slider, a floating connecting plate is rotatably connected to the lower end surface of the second movable arm, a second clamping claw capable of clamping a target object is provided on one side of the floating connecting plate, and a sixth driving member capable of driving the first movable arm to move up and down is provided on one side of the second movable slider;

[0018] The second movable arm is provided with a fixed connecting plate, a driving cylinder is hinged on the fixed connecting plate, an output end of the driving cylinder is rotatably connected to a driving frame, one end of the driving frame is fixedly connected to the floating connecting plate, and an angle formed between the driving frame and the floating connecting plate is an obtuse angle.

[0019] The present invention is further configured as follows: two independent moving blocks are provided on one side of the moving seat, and the two moving blocks are respectively located at the two ends of the limiting plate; a fourth driving member is provided on the side of the moving seat away from the moving block, and the output end of the fourth driving member passes through the moving seat and is fixedly connected to the moving block; and a clamping block for clamping a flange fork is provided on one end of each moving block away from the moving seat.

[0020] The present invention is further configured as follows: the output end of the clamping spring hydraulic drive member is coaxially arranged with the discharge hole.

[0021] The present invention is further configured to include: a retaining spring press-fitting conveyor, a finished product conveyor, and a finished product conveying mechanism that can transfer workpieces on the retaining spring press-fitting conveyor to the finished product conveyor.

[0022] In summary, the present invention has the following beneficial effects: the present invention can realize the automatic assembly of the cross shaft assembly, with high assembly efficiency, controlled precision and quality, and greatly reduce labor costs, greatly increasing the economic benefits of the enterprise. In specific use, only 1-2 workers are needed to monitor to ensure that multiple processes are carried out smoothly and orderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the existing cross shaft assembly;

[0024] Figure 2 is a structural schematic diagram of a cross-axle assembly line of the first embodiment;

[0025] Figure 3 yes Figure 2 Structural schematic diagram of the middle flange fork transfer mechanism and the cross-axis transfer mechanism;

[0026] Figure 4 yes Figure 2 The structural diagram of the first press machine;

[0027] Figure 5 yes Figure 4 A partial structural diagram of

[0028] Figure 6 yes Figure 4 A schematic diagram of the structure of the adaptive adjustment support;

[0029] Figure 7 yes Figure 4 A schematic structural diagram of the first circlip press assembly machine;

[0030] Figure 8 yes Figure 2 A partial structural diagram of

[0031] Fig. 9 yes Figure 8 Structural diagram of medium pressure loading and transferring mechanism;

[0032] Fig.10 yes Figure 8 A schematic diagram of the structure of the second press machine;

[0033] Fig.11 yes Fig.10 A schematic diagram of the structure of the clamping block and the flange fork in a matched clamping state;

[0034] Fig.12 yes Fig.11Schematic diagram of the structure of the clamping block and the flange fork in the uncoupled clamping state.

[0035] 1. Cross-axis feeding device; 2. Flange fork feeding device; 3. Bearing sleeve feeding device; 4. First press machine; 5. Second press machine; 6. Flange fork transfer mechanism; 7. Cross-axis transfer mechanism; 8. Press transfer mechanism; 9. Manipulator transfer mechanism; 10. First column; 11. First horizontal guide rail; 12. First movable slider; 13. First movable arm; 14. First clamp; 15. Belt conveyor; 16. Support plate; 17. First limit rod; 18. Self-adaptive adjustment support; 19. First vibration plate; 20. First hydraulic cylinder; 21. Support frame; 22. Press cylinder; 23. Drive plate; 24. Guide column; 25. Spring; 26. First spring press machine; 27. Positioning plate; 28. Discharge hole; 29. ​​Spring hydraulic drive; 30. Fixing plate Fixed plate; 31. slide groove; 32. push plate; 33. accommodating box; 34. step; 35. inclined slide; 36. screw slide rail conveyor; 37. moving seat; 38. limit plate; 39. second limit rod; 40. second vibration plate; 41. second hydraulic cylinder; 42. bearing sleeve supporting bottom plate; 43. moving block; 44. fourth driving member; 45. clamping block; 46. second column; 47. second horizontal guide rail; 48. second movable slider; 49. second movable arm; 50. floating connecting plate; 51. second clamping claw; 52. fixed connecting plate; 53. driving cylinder; 54. driving frame; 55. spring press conveyor; 56. finished product conveyor; 57. finished product transfer mechanism; 58. frame; 59. second spring press machine; 60. flange mounting hole; 61. clamping hole. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 2 As shown, an automatic cross shaft assembly line includes a cross shaft feeding device 1, a flange fork feeding device 2, a bearing sleeve feeding device 3, a first press assembling machine 4 and a second press assembling machine 5.

[0038] A flange fork transfer mechanism 6 is arranged above the flange fork feeding device 2, which can transfer the flange fork to the first press 4. A cross shaft transfer mechanism 7 is arranged above the cross shaft feeding device 1, which can transfer the cross shaft to the first press 4. The first press 4 can press the cross shaft and the flange fork to form a workpiece A.

[0039] A press-fitting transfer mechanism 8 is provided above the second press-fitting machine 5, which can transfer the workpiece A completed on the first press-fitting machine 4 to the second press-fitting machine 5. A manipulator transfer mechanism 9 is provided between the first press-fitting machine 4 and the bearing sleeve feeding device 3, and the manipulator transfer mechanism 9 can transfer the bearing sleeve on the bearing sleeve feeding device 3 to the second press-fitting machine 5, and the second press-fitting machine 5 press-fits the cross shaft and the bearing sleeve.

[0040] Through the above settings, the cross shaft assembly can be automatically assembled, with high assembly efficiency, controlled precision and quality, and greatly reduced labor costs, greatly increasing the economic benefits of the enterprise. In actual use, only 1-2 workers are needed to monitor and ensure that multiple processes are carried out smoothly and orderly.

[0041] Further, such as Figure 2 and Figure 3 As shown, the flange fork transfer mechanism 6 includes two first columns 10 arranged on the ground, and the two first columns 10 are respectively located on both sides of the flange fork feeding device 2 and the first press assembling machine 4. The top ends of the two first columns 10 are fixedly connected to the same first horizontal guide rail 11, and a first movable slider 12 is slidably connected to the first horizontal guide rail 11. A first driving member (not shown in the drawings) that can drive the first movable slider 12 to move on the first horizontal guide rail 11 is arranged at one end of the first horizontal guide rail 11.

[0042] One side of the first movable slider 12 is slidably connected to a first movable arm 13, and the lower end surface of the first movable arm 13 is provided with a first clamping claw 14 for clamping the target object. One side of the first movable slider 12 is provided with a second driving member (not shown in the drawing) for driving the first movable arm 13 to move up and down.

[0043] During the specific operation, the first driving member controls the movement of the first movable slide block 12, thereby controlling the position state of the first movable arm 13. In addition, the second driving member controls the first movable arm 13 to move up and down to cooperate with the first clamping jaw 14. The linkage between the above structures jointly completes the transfer of the flange fork on the flange fork feeding device 2 to the first press assembling machine 4.

[0044] Furthermore, the structure of the cross-axis transfer mechanism 7 is the same as that of the flange fork transfer mechanism 6 , and the only difference is that the two first columns 10 are respectively located on both sides of the cross-axis feeding device 1 and the first press assembling machine 4 .

[0045] Further, such as Figure 2 , Figure 4 and Figure 5As shown, the first press machine 4 includes a belt conveyor 15, on which a plurality of support plates 16 are arranged, and each support plate 16 is provided with a plurality of first stop rods 17 that can be engaged with the flange mounting holes 60 on the flange fork. The flange is transferred to the support plate 16 by the flange fork transfer mechanism 6, and the flange mounting holes 60 on the flange fork are engaged with the first stop rods 17 to prevent the flange fork from shifting during the subsequent assembly process.

[0046] An adaptive adjustment support 18 that can cooperate with the cross-axis transfer mechanism 7 is provided in the middle of the belt conveyor 15. The position height of the cross-axis can be adjusted to a position state that cooperates with the clamping hole 61 on the flange fork through the adaptive adjustment support 18.

[0047] Both sides of the belt conveyor 15 are provided with first vibration plates 19 for transmitting bearings, and the outlet position of each first vibration plate 19 is provided with a first hydraulic cylinder 20 for pressing the bearing into the clamping hole 61 on the flange fork. Through the action of the first hydraulic cylinder 20, the inner and outer surfaces of the bearing are respectively interference-fitted with the cross shaft and the inner wall of the clamping hole 61 to press-fit and form the workpiece A.

[0048] During specific use, the flange fork is transferred to the belt conveyor 15 by the flange fork transfer mechanism 6, and is transported forward by the belt conveyor 15 until the clamping holes 61 at both ends of the flange fork correspond to the discharge port position of the first vibration plate 19, at which time the belt conveyor 15 stops running.

[0049] Then, the cross shaft is transferred to the self-adaptive adjustment support 18 by the cross shaft transfer mechanism 7, and the self-adaptive adjustment support 18 adjusts the position height of the cross shaft to a position state matching with the clamping hole 61 on the flange fork. Finally, the first hydraulic cylinder 20 pushes the bearing into the clamping hole 61, so that the inner and outer surfaces of the bearing respectively produce interference fit with the cross shaft and the inner wall of the clamping hole 61 to press-fit and form the workpiece A.

[0050] Further, such as Figure 5 and Figure 6 As shown, the self-adaptive adjustment supporter 18 includes a support frame 21 disposed on the belt conveyor 15, and a pressure cylinder 22 is disposed on the support frame 21. The output end of the pressure cylinder 22 passes through the support frame 21 and is fixedly connected to a driving plate 23 for lifting the cross shaft. In specific use, the stroke of the pressure cylinder 22 can be set to extend or retract a fixed stroke. Thereby, it is ensured that the driving plate 23 can lift the matching cross shaft to a fixed height, so that the two ends of the cross shaft can respectively match the clamping holes 61 on the flange fork.

[0051] Furthermore, the upper end surface of the driving plate 23 is provided with a plurality of guide posts 24. In addition, springs 25 are provided between the upper end surface of the driving plate 23 and the support frame 21, and the number of the springs 25 matches the number of the guide posts 24 and is sleeved on the outside of the guide posts 24 one by one.

[0052] When the output end of the pressure cylinder 22 drives the driving plate 23 to move upward, until the upper end surface of the guide column 24 abuts against the support frame 21, the driving plate 23 does not have space to continue to move upward, thereby further limiting the stroke range of the pressure cylinder 22, thereby ensuring that the driving plate 23 can lift the matching cross shaft to a fixed height, so that the two ends of the cross shaft can respectively match the clamping holes 61 on the flange fork. In addition, the setting of the spring 25 can ensure that the driving plate 23 drives the cross shaft to move up and down smoothly and orderly.

[0053] Further, such as Figure 4 and Figure 7 As shown, both ends of the belt conveyor 15 are provided with a first circlip press assembling machine 26 for installing the circlip in the clamping hole 61. The circlip is also called a retaining ring, which prevents the cross shaft and the flange fork from sliding relative to each other and falling off, and plays a role of limiting.

[0054] Furthermore, each first retaining spring press 26 includes a positioning plate 27, which has a built-in guide channel that can match the retaining spring. A discharge hole 28 that can cooperate with the clamping hole 61 on the flange fork is provided on one side of the positioning plate 27, and one end of the discharge hole 28 is connected to the guide channel.

[0055] A clamping spring hydraulic driving member 29 is provided on one side of the positioning plate 27 . One end of the clamping spring hydraulic driving member 29 that penetrates into the positioning plate 27 abuts against the clamping spring and drives the clamping spring to pass through the discharge hole 28 and engage in the engaging hole 61 .

[0056] It should be particularly noted that the output end of the clamping spring hydraulic driving member 29 is coaxially arranged with the discharge hole 28 .

[0057] In actual operation, after the workpiece A is pressed and installed at the previous station, it is continuously conveyed forward by the belt conveyor 15 to the station of the first clip press machine 26. The clip in the guide channel moves downward to the discharge hole 28 due to gravity to achieve positioning, and then the clip hydraulic drive 29 extends and pushes the clip to be pressed and installed on the workpiece to achieve the locking effect.

[0058] Furthermore, a fixing plate 30 is provided at the upper end of the clamping spring hydraulic driving member 29, a slide groove 31 is provided through one side of the fixing plate 30, and a push plate 32 is slidably connected in the slide groove 31. A storage box 33 for storing the clamping spring is provided on the fixing plate 30, and the bottom of the storage box 33 is connected to the slide groove 31.

[0059] The upper end surface of the push plate 32 is provided with a step 34 that can be matched with a single retaining spring, and one end of the push plate 32 is provided with a third driving member (not shown in the drawings) that can drive the push plate 32 to reciprocate in the slide groove 31. The upper end surface of the positioning plate 27 is provided with an inclined slide 35 that is connected to the guide channel, and one end of the inclined slide 35 is matched with the fixed plate 30.

[0060] During the actual operation, the third driving member controls the push plate 32 to move back and forth, so that each time the push plate 32 completes a reciprocating motion, it can push out a single retaining spring located at the bottom of the receiving box 33. Specifically, the side wall of the step 34 pushes the single retaining spring to the inclined slide 35, and slides along its inclined surface into the guide channel.

[0061] Further, such as Figure 8 , Fig.10 and Fig.11 As shown, the second press machine 5 includes a screw slide rail conveyor 36, a movable seat 37 is slidably connected to the screw slide rail conveyor 36, a limit plate 38 is arranged on one side of the movable seat 37, and a plurality of second limit rods 39 that can be engaged with the flange mounting holes 60 on the flange fork are arranged on the limit plate 38. In the present application, it is particularly emphasized that the functions of the first limit rod 17 and the second limit rod 39 are aimed at and utilized for the structural characteristics of the flange fork in the cross shaft assembly, so as to realize the positioning function of the workpiece in combination with the assembly line.

[0062] Second vibration plates 40 for transmitting bearings are provided on both sides of the screw slide rail conveyor 36, and a second hydraulic cylinder 41 for sleeve-mounting the bearing on the cross shaft is provided at the discharge port of each second vibration plate 40.

[0063] A bearing sleeve supporting bottom plate 42 is disposed on one side of the movable seat 37 , and the bearing sleeve supporting bottom plate 42 is disposed perpendicularly to the limiting plate 38 .

[0064] During specific use, the press-fitting transfer mechanism 8 first transfers the workpiece A on the first press-fitting machine 4 to the movable seat 37 on the second press-fitting machine 5, and engages with the limit plate 38 and the second limit rod 39 on the movable seat 37 to realize the positioning of the workpiece A. Then, the manipulator transfer mechanism 9 transfers the bearing sleeve on the bearing sleeve feeding device 3 to the bearing sleeve support base plate 42, so that the two ends of the cross shaft on the workpiece A are aligned with the engaging holes 61 on the bearing sleeve. Finally, the screw slide rail conveyor 36 drives the movable seat 37 to move until the cross shaft on the workpiece A and the engaging holes 61 on the bearing sleeve correspond to the discharge port position of the second vibration plate 40, at which time the screw slide rail conveyor 36 stops running. Finally, the second hydraulic cylinder 41 pushes the bearing into the engaging hole 61, so that the inner and outer surfaces of the bearing are respectively interference-fitted with the inner walls of the engaging holes 61 on the cross shaft and the bearing sleeve to form a cross shaft assembly by press-fitting.

[0065] Further, such as Fig.11 and Fig.12 As shown, two independent moving blocks 43 are provided on one side of the moving seat 37, and the two moving blocks 43 are respectively located at the two ends of the limiting plate 38. A fourth driving member 44 is provided on the side of the moving seat 37 away from the moving block 43, and the fourth driving member 44 can be a cylinder or the like. The output end of the fourth driving member 44 passes through the moving seat 37 and is fixedly connected to the moving block 43. Through the action of the fourth driving member 44, the moving block 43 and the moving seat 37 can be driven to slide relative to each other.

[0066] Specifically, one end of each moving block 43 away from the moving seat 37 is provided with a clamping block 45 for clamping the flange fork. Since the fourth driving member 44 can drive the moving block 43 to move, it can also drive the clamping block 45 to move synchronously. When the output end of the fourth driving member 44 is extended, the moving block 43 and the clamping block 45 move in a direction away from the moving seat 37. At this time, the distance between the clamping block 45 and the limiting plate 38 will be enlarged, so that the workpiece A can be placed on the limiting plate 38. When the output end of the fourth driving member 44 is retracted, the moving block 43 and the clamping block 45 move in a direction close to the moving seat 37. At this time, the distance between the clamping block 45 and the limiting plate 38 will be reduced until one side of the clamping block 45 abuts against the flange fork to limit the flange fork, thereby limiting the workpiece A.

[0067] Further, such as Figure 8 and Fig. 9 As shown, the press-fitting transfer mechanism 8 includes two second columns 46 disposed on the ground, and the two second columns 46 are respectively located on both sides of the second press-fitting machine 5 and the first press-fitting machine 4. The top ends of the two first columns 10 are fixedly connected to the same second horizontal guide rail 47, and a second movable slider 48 is slidably connected to the second horizontal guide rail 47. A fifth driving member (not shown in the drawings) is disposed at one end of the second horizontal guide rail 47, which can drive the second movable slider 48 to move on the second horizontal guide rail 47.

[0068] One side of the second movable slider 48 is slidably connected to the second movable arm 49, and the lower end surface of the second movable arm 49 is rotatably connected to the floating connecting plate 50. One side of the floating connecting plate 50 is provided with a second clamping claw 51 for clamping the target object, and one side of the second movable slider 48 is provided with a sixth driving member (not marked in the drawings) that can drive the first movable arm 13 to move up and down.

[0069] The second movable arm 49 is provided with a fixed connecting plate 52, a driving cylinder 53 is hinged on the fixed connecting plate 52, an output end of the driving cylinder 53 is rotatably connected to a driving frame 54, and one end of the driving frame 54 is fixedly connected to the floating connecting plate 50. The angle formed between the driving frame 54 and the floating connecting plate 50 is an obtuse angle.

[0070] In specific use, the fifth driving member controls the movement of the second movable slider 48, thereby controlling the position state of the second movable arm 49. In addition, the sixth driving member controls the second movable arm 49 to move up and down, so as to cooperate with the second clamping jaw 51. The linkage between the above structures jointly completes the transfer of the workpiece A on the first press 4 to the second press 5. In addition, the present application can also realize the 90-degree flipping of the floating connecting plate 50 and the second clamping jaw 51 by driving the telescopic movement of the cylinder 53, so that the position state of the workpiece A can also be flipped 90 degrees when it is transferred to the second press 5, so as to better cooperate with the limit plate 38 and the limit rod.

[0071] It should be particularly emphasized that: in the initial state, the floating connecting plate 50 is arranged parallel to the ground, and when it is turned over 90 degrees to be perpendicular to the ground, since the angle formed between the driving frame 54 and the floating connecting plate 50 is an obtuse angle, when the floating connecting plate 50 is perpendicular to the ground, the output end of the driving cylinder 53 can still be guaranteed to contact with the driving frame 54. In addition, turning over the workpiece A is conducive to assembling it with the bearing sleeve on the second press assembling machine 5.

[0072] Furthermore, the first driving member, the second driving member, the fifth driving member and the sixth driving member may all be driven by servo motors, but the present invention is not limited thereto.

[0073] Furthermore, the first clamping jaw 14 and the second clamping jaw 51 may be pneumatic clamping jaws. However, this is not the only limitation, and all first clamping jaws 14 that can clamp a workpiece are within the protection scope of this application.

[0074] Furthermore, the present application also includes a retaining spring press-fitting conveyor 55 , a finished product conveyor 56 , and a finished product transfer mechanism 57 that can transfer the workpieces on the retaining spring press-fitting conveyor 55 to the finished product conveyor 56 .

[0075] The circlip press conveyor 55 includes a frame 58, and a second circlip press machine 59 is provided at both ends of the frame 58. The structure and principle of the second circlip press machine 59 are consistent with those of the first circlip press machine 26, and will not be described in detail here. The second circlip press machine 59 can load the circlip into the clamping hole 61 on the bearing sleeve to achieve the limit fixation of the cross shaft and the bearing sleeve in the matching state.

[0076] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An automatic cross-axis assembly line, characterized in that: It includes a cross-shaft feeding device, a flange fork feeding device, a bearing sleeve feeding device, a first press and a second press. A flange fork transfer mechanism capable of transferring the flange fork to the first press is provided above the flange fork feeding device. A cross-shaft transfer mechanism capable of transferring the cross-shaft to the first press is provided above the cross-shaft feeding device. The first press can press the cross-shaft and the flange fork to form a workpiece A. A press-fitting transfer mechanism is arranged above the second press-fitting machine, which can transfer the workpiece A completed on the first press-fitting machine to the second press-fitting machine. A manipulator transfer mechanism is arranged between the first press-fitting machine and the bearing sleeve feeding device. The manipulator transfer mechanism can transfer the bearing sleeve on the bearing sleeve feeding device to the second press-fitting machine, and the second press-fitting machine press-fits the cross shaft and the bearing sleeve. The first press machine includes a belt conveyor, on which a plurality of support plates are arranged, each of which is provided with a plurality of first limit rods which can be engaged with the flange mounting holes on the flange fork, and a self-adaptive adjustment supporter which can be engaged with the cross-axis transfer mechanism is arranged in the middle of the belt conveyor, and the self-adaptive adjustment supporter can adjust the position height of the cross-axis to a position state which is engaged with the engaging holes on the flange fork; Both sides of the belt conveyor are provided with a first vibration plate for transmitting the bearing, and a first hydraulic cylinder for pressing the bearing into the clamping hole on the flange fork is provided at the discharge port of each first vibration plate, so that the inner and outer surfaces of the bearing are respectively interference-fitted with the cross shaft and the inner wall of the clamping hole to form a workpiece A by press-fitting; The self-adaptive adjustment support device comprises a support frame arranged on the belt conveyor, a pressure cylinder is arranged on the support frame, and the output end of the pressure cylinder passes through the support frame and is fixedly connected to a driving plate for lifting the cross shaft, so that the two ends of the cross shaft can respectively match the clamping holes on the flange fork; The press-fitting transfer mechanism comprises two second upright posts arranged on the ground, the two second upright posts are respectively located on both sides of the second press-fitting machine and the first press-fitting machine, the top ends of the two second upright posts are fixedly connected to the same second horizontal guide rail, a second movable slider is slidably connected to the second horizontal guide rail, and a fifth driving member that can drive the second movable slider to move on the second horizontal guide rail is arranged at one end of the second horizontal guide rail; A second movable arm is slidably connected to one side of the second movable slider, a floating connecting plate is rotatably connected to the lower end surface of the second movable arm, a second clamping claw capable of clamping a target object is provided on one side of the floating connecting plate, and a sixth driving member capable of driving the first movable arm to move up and down is provided on one side of the second movable slider; The second movable arm is provided with a fixed connecting plate, a driving cylinder is hinged on the fixed connecting plate, an output end of the driving cylinder is rotatably connected to a driving frame, one end of the driving frame is fixedly connected to the floating connecting plate, and an angle formed between the driving frame and the floating connecting plate is an obtuse angle.

2. The automatic cross-axis assembly line according to claim 1, characterized in that: Both ends of the belt conveyor are provided with a first clip spring press machine capable of installing the clip spring in the clip hole; Each of the first retaining spring press machines includes a positioning plate, the positioning plate has a built-in guide channel that can match the retaining spring, one side of the positioning plate is provided with a discharge hole that can match with the clamping hole on the flange fork, one end of the discharge hole is connected with the guide channel, and one side of the positioning plate is provided with a retaining spring hydraulic driving component, one end of the retaining spring hydraulic driving component penetrates into the positioning plate and abuts against the retaining spring, and drives the retaining spring to pass through the discharge hole and engage with the clamping hole.

3. The automatic cross-axis assembly line according to claim 2, characterized in that: A fixing plate is provided at the upper end of the clamping spring hydraulic driving member, a slide groove is provided through one side of the fixing plate, a push plate is slidably connected in the slide groove, a storage box for storing the clamping spring is provided on the fixing plate, and the bottom of the storage box is connected to the slide groove; The upper end surface of the push plate is provided with a step that can cooperate with a single retaining spring, and one end of the push plate is provided with a third driving member that can drive the push plate to reciprocate in the slide groove, and the upper end surface of the positioning plate is provided with an inclined slide connected to the guide channel, and one end of the inclined slide cooperates with the fixed plate.

4. The automatic cross-axis assembly line according to claim 3 is characterized in that: The second press comprises a screw slide conveyor, which is slidably connected to a moving seat, a limiting plate is arranged on one side of the moving seat, and a plurality of second limiting rods which can be engaged with the flange mounting holes on the flange fork are arranged on the limiting plate, second vibration plates for transmitting bearings are arranged on both sides of the screw slide conveyor, and a second hydraulic cylinder for setting the bearing sleeve on the cross shaft is arranged at the discharge port position of each second vibration plate, and a bearing sleeve supporting base plate is arranged on one side of the moving seat, and the bearing sleeve supporting base plate is arranged vertically to the limiting plate.

5. The automatic cross-axis assembly line according to claim 4, characterized in that: Two independent moving blocks are provided on one side of the moving seat, and the two moving blocks are respectively located at the two ends of the limit plate. A fourth driving member (44) is provided on the side of the moving seat away from the moving block, and the output end of the fourth driving member (44) passes through the moving seat and is fixedly connected to the moving block. Each moving block is provided with a clamping block for clamping a flange fork at one end away from the moving seat.

6. The automatic cross-axis assembly line according to claim 5, characterized in that: The output end of the clamping spring hydraulic driving component is coaxially arranged with the discharge hole.

7. The automatic cross-axis assembly line according to claim 6, characterized in that: It also includes a retaining spring press-fitting conveyor, a finished product conveyor, and a finished product transfer mechanism that can transfer the workpieces on the retaining spring press-fitting conveyor to the finished product conveyor.

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