Metal lining press fitting production line

Abstract

The metal lining press-fitting production line comprises a first conveying line, a second conveying line, a mechanical arm and a press-fitting mechanism, and a shell, a third rotating motor, a support, a first transmission assembly, a fixed arm and a rotating piece are arranged in the press-fitting mechanism. When the second transmission assembly rotates, the upper end of the rotating piece is driven to rotate around the first hinge rod, the upper end of the rotating piece is kept to move out of the moving area, and the lower end of the rotating piece is kept to swing. According to the metal lining press-fitting production line, part taking is achieved through the press-fitting mechanism on the mechanical arm, press-fitting is achieved through cooperation of the press-fitting mechanism and the press-fitting air cylinder, and linings on the second conveying line can be transferred and then press-fitted. And during transferring, the outer wall or the inner wall of the lining can be taken, the lining can be conveniently arranged in the middle of a workpiece or arranged outside the workpiece in a sleeving mode, press fitting in different modes can be achieved for the linings with different diameters, the practicability of the press fitting mechanism is effectively improved, and the press fitting efficiency is improved.

Description

Technical Field

[0001] This invention relates to press-fitting technology, and more particularly to a metal bushing press-fitting production line. Background Technology

[0002] Cast aluminum is frequently used in mechanical equipment to reduce overall equipment weight and improve the durability of components. Because long-term friction causes wear on parts, engineers select materials with lower hardness and better wear resistance for bushings or sleeves during the design phase. This reduces wear on shafts and housings and saves on maintenance costs.

[0003] When bushings are press-fitted, since bushings of different diameters and different installation methods are used, they need to be pressed into the middle of the workpiece or placed on the outside of the workpiece. Therefore, different structures are needed to grip them during installation, and then press-fitting equipment is used to press them in place. The process involves many parts and is complicated to operate. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes a metal bushing press-fitting production line.

[0005] A metal bushing press-fitting production line, characterized in that it comprises:

[0006] First conveyor line;

[0007] Second conveyor line;

[0008] The robotic arm is positioned between the first and second conveyor lines. The lower end of the robotic arm is provided with a fixed base. The robotic arm is equipped with a rotary motor, a first rotary motor, a second rotary motor, and a pressing cylinder. The lower end of the pressing cylinder is provided with a pressing cylinder. The lower end of the pressing cylinder is provided with a pressing mechanism. The pressing mechanism includes a housing, a third rotary motor, a support frame inside the housing, a first transmission assembly, a fixed arm, and a rotating component hinged inside the fixed arm. The rotating component is positioned inside the fixed arm via the second transmission assembly. The third rotary motor is positioned in the middle of the support frame. The third rotary motor is equipped with a first bevel gear, which meshes with the first transmission assembly. The first transmission assembly is connected to the second transmission assembly for transmission. The second transmission assembly drives the rotating component to swing within the fixed arm.

[0009] The fixed arm consists of a mounting part and a hinge part. The second transmission assembly extends to the middle of the mounting part, and the middle of the hinge part is hollowed out to form a movable area.

[0010] The upper end of the rotating component is hinged to the active area via the second transmission assembly, and the lower end of the rotating component is hinged to the middle of the fixed arm via the first hinge rod. When the second transmission assembly rotates, it drives the upper end of the rotating component to rotate around the first hinge rod, keeping the upper end of the rotating component out of the active area, and keeping the lower end of the rotating component swinging.

[0011] In this invention, the hinge portion is further provided with a first opening region, a second opening region and a third opening region, the first opening region and the second opening region are arranged opposite to each other, and the third opening region is located between the first opening region and the second opening region.

[0012] In this invention, the rotating component consists of a contact end and a clamping end. The contact end has a vertical surface and a guide slope, and the lower end of the clamping end has a clamping slope.

[0013] In this invention, the contact end is provided with a strip-shaped hole, which is arranged parallel to the vertical plane.

[0014] In this invention, the upper end of the vertical surface is provided with multiple first elastic plates, and the upper end of the guide slope is provided with multiple second elastic plates.

[0015] In this invention, the contact end cooperates with the first opening region and the second opening region, and extends from the first opening region and the second opening region, while the clamping end extends from the third opening region and swings.

[0016] In this invention, the second transmission assembly includes a push rod and symmetrically arranged hinge arms, a second hinge rod, and a transmission wheel. The push rod is disposed in a strip-shaped hole, the second hinge rod is hinged inside the fixed arm, and the hinge arm is disposed within the movable area.

[0017] In this invention, the length of the strip hole is greater than the length of the hinge arm.

[0018] In this invention, the diameter of the push rod is smaller than the width of the strip hole.

[0019] In this invention, the first transmission assembly includes a second bevel gear, a third bevel gear, and symmetrically arranged belts. The second bevel gear is connected to the bracket via a first transmission rod, and the third bevel gear is connected to the bracket via a second transmission rod. The second bevel gear meshes with the first bevel gear.

[0020] The metal bushing press-fitting production line of this invention has the following advantages: This production line uses a press-fitting mechanism on a robotic arm to pick up parts and, in conjunction with a press-fitting cylinder, performs press-fitting. It can transfer bushings from the second conveyor line and then press-fit them. Furthermore, during transfer, the bushing can be picked up from either the outer or inner wall, facilitating the placement of the bushing in the middle of the workpiece or around its exterior. Different press-fitting methods can be implemented for bushings of different diameters, effectively improving the practicality of the press-fitting mechanism and increasing press-fitting efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the metal bushing press-fitting production line structure of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the pressing mechanism in the middle;

[0023] Figure 3 for Figure 2 Internal structure diagram;

[0024] Figure 4 for Figure 3 Exploded view;

[0025] Figure 5 for Figure 4 A schematic diagram of the fixed arm and rotating component in the diagram;

[0026] Figure 6 for Figure 5 A schematic diagram of the structure in another direction;

[0027] Figure 7 for Figure 5 The main view;

[0028] Figure 8 for Figure 5 Exploded view;

[0029] Figure 9 for Figure 8 Cross-sectional view of the fixed arm structure in the diagram;

[0030] Figure 10 for Figure 8 A schematic diagram of the second transmission component structure;

[0031] Figure 11 for Figure 8 A schematic diagram of the rotating component structure in the diagram;

[0032] Figure 12 This is a diagram showing the changes in the working state of the fixed arm, rotating component, and second transmission assembly in this invention.

[0033] Figure 13This is a structural analysis diagram of the pressing mechanism in this invention, showing the part removal and pressing process.

[0034] In the diagram: 1. First conveyor line; 2. Second conveyor line; 3. Robotic arm; 4. Clamping ramp; 5. Pressing mechanism; 6. Fixed base; 7. Rotary motor; 8. First rotary motor; 9. Second rotary motor; 10. Pressing cylinder; 11. Pressing cylinder; 12. Housing; 13. Third rotary motor; 14. Support; 15. First transmission assembly; 16. Fixed arm; 17. Rotating component; 18. Second transmission assembly; 19. First bevel gear; 20. Circular part; 21. Connecting part; 22. Fixed foot; 23. Second bevel gear. 24. Third bevel gear, 25. Belt, 26. First transmission rod, 27. Second transmission rod, 28. Second hinge rod, 29. Hinge arm, 30. Push rod, 31. Strip hole, 32. First hinge rod, 33. First elastic plate, 34. Second elastic plate, 35. Moving area, 36. Mounting part, 37. Hinge part, 38. First opening area, 39. Second opening area, 40. Third opening area, 41. Clamping end, 42. Transmission wheel, 43. Contact end, 44. Vertical surface, 45. Guide slope. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] like Figures 1 to 13 As shown, the metal bushing press-fitting production line of the present invention includes a first conveyor line 1, a second conveyor line 2, and a robotic arm 3. The robotic arm 3 is used to transfer the bushing to be press-fitted and to press the bushing to be press-fitted onto the workpiece. The transfer and press-fitting steps can be completed by only one robotic arm 3, which simplifies the operation process, eliminates the need for other structural assistance, and reduces capital investment.

[0037] The first conveyor line 1 is used to transport the workpiece to be processed, and the second conveyor line 2 is used to transport the bushing that needs to cooperate with the workpiece. The bushing on the second conveyor line 2 is removed by the robotic arm 3, and then rotated and placed on the workpiece to be processed. The external force is applied by the pressing cylinder 10 to push the bushing at the lower end of the pressing mechanism 5 to the middle of the workpiece or to the outside of the workpiece.

[0038] The robotic arm 3 is positioned between the first conveyor line 1 and the second conveyor line 2. A fixed base 6 is located at the lower end of the robotic arm 3. A rotary motor 7, a first rotary motor 8, a second rotary motor 9, and a pressing cylinder 10 are mounted on the robotic arm 3. A pressing cylinder 11 is located at the lower end of the pressing cylinder 10, and a pressing mechanism 5 is located at the lower end of the pressing cylinder 11. The rotary motor 7 drives the entire robotic arm 3 to rotate, achieving 360° rotation to complete the part removal. The first rotary motor 8 completes the first joint rotation, and the second rotary motor 9 completes the second joint rotation, thus facilitating the flexible rotation of the entire robotic arm 3. The pressing cylinder 10 maintains pressure on the pressing cylinder 11, causing the pressing cylinder 11 to move up and down, pushing the bushing gripped by the pressing mechanism 5.

[0039] The pressing mechanism 5 includes a housing 12, a third rotary motor 13, a support 14 disposed inside the housing 12, a first transmission assembly 15, a fixed arm 16, and a rotating component 17 hinged inside the fixed arm 16. The housing 12 is hollow inside and has a cover plate at the top, which closes the housing 12. The rotating component 17 is disposed inside the fixed arm 16 via a second transmission assembly 18. The third rotary motor 13 is located in the middle of the support 14 and has a first bevel gear 19. The third rotary motor 13 is located at the upper end of the support 14, while the first bevel gear 19 is located at the lower end of the support 14. The first bevel gear 19 meshes with the first transmission assembly 15, which in turn connects to the second transmission assembly 18 for transmission. The second transmission assembly 18 drives the rotating component 17 to swing within the fixed arm 16.

[0040] The bracket 14 has a circular part 20 in the middle, and multiple connecting parts 21 are provided around the circular part 20. The connecting parts 21 are provided with fixing feet 22, which are used for the installation of the first transmission component 15.

[0041] The first transmission assembly 15 includes a second bevel gear 23, a third bevel gear 24, and symmetrically arranged belts 25. The second bevel gear 23 is connected to the bracket 14 via a first transmission rod 26, and the third bevel gear 24 is connected to the bracket 14 via a second transmission rod 27. The second bevel gear 23 meshes with the first bevel gear 19. The first transmission rod 26 and the second transmission rod 27 are mounted on the fixed foot 22. The first transmission rod 26 and the second transmission rod 27 are arranged perpendicularly, and the second bevel gear 23 and the third bevel gear 24 mesh with each other. When the first bevel gear 19 drives the second bevel gear 23 to rotate, the second bevel gear 23 drives the third bevel gear 24 to rotate. The third bevel gear 24 drives the second transmission rod 27, keeping the second transmission rod 27 driving the belt 25 to rotate. This, in turn, drives the second hinge rod 28 to rotate through the belt 25. The second hinge rod 28 drives the hinge arm 29 to rotate, and the hinge arm 29 drives the push rod 30 to move within the strip hole 31. This keeps the entire rotating part 17 rotating around the first hinge rod 32, extending either the first elastic plate 33 or the second elastic plate 34 out of the active area 35.

[0042] The fixed arm 16 consists of a mounting part 36 and a hinge part 37. The mounting part 36 is connected to the lower end of the housing 12. The second transmission component 18 extends to the middle of the mounting part 36. The middle of the hinge part 37 is hollowed out to form an active area 35.

[0043] The hinge portion 37 is also provided with a first opening area 38, a second opening area 39 and a third opening area 40. The first opening area 38 and the second opening area 39 are arranged opposite to each other, and the third opening area 40 is located between the first opening area 38 and the second opening area 39.

[0044] When the upper end of the rotating member 17 extends from the first opening area 38, a bushing with a diameter smaller than the distance between the fixed arm 16 can be clamped by the rotating member 17. When the upper end of the rotating member 17 extends from the second opening area 39, a bushing with a diameter larger than the distance between the fixed arm 16 can be clamped by the rotating member 17. When the diameter of the bushing is between the distance between the outer wall and the inner wall of the fixed arm 16, it can be clamped by the clamping end 41 extending from the third opening area 40 of the rotating member 17, which facilitates the clamping of different bushings.

[0045] like Figure 13As shown, the diameter of the M-type bushing is larger than that of the N-type bushing. When the M-type bushing is clamped, the upper end of the rotating part 17 needs to be kept protruding from the second opening area 39, while when the N-type bushing is clamped, the upper end of the rotating part 17 needs to be kept protruding from the first opening area 38. That is, when the fixing arm 16 is outside the bushing, the bushing diameter is smaller than the distance between the fixing arms 16, and when the fixing arm 16 is inside the bushing, the bushing diameter is larger than the distance between the fixing arms 16.

[0046] When the bushing is outside the fixed arm 16, it can be placed in the middle of the workpiece or sleeved on the outside. When the bushing is inside the fixed arm 16, it can also be placed in the middle of the workpiece or sleeved on the outside.

[0047] Meanwhile, when clamping and pressing bushings with small heights, the bushing can be placed outside the fixed arm 16 and in the middle of the workpiece to avoid collision between the fixed arm 16 and the workpiece. This allows the bushing to be clamped and positioned, thus completing the entire pressing process. This positioning-assisted pressing process prevents bushing displacement during pressing, which could damage the workpiece.

[0048] When the fixed arm 16 is outside the bushing, it can help to position the bushing onto the workpiece and complete the positioning and pressing.

[0049] The upper end of the rotating component 17 is hinged to the movable area 35 via the second transmission assembly 18, and the lower end of the rotating component 17 is hinged to the middle of the fixed arm 16 via the first hinge rod 32. When the second transmission assembly 18 rotates, it drives the upper end of the rotating component 17 to rotate around the first hinge rod 32, keeping the upper end of the rotating component 17 out of the movable area 35, and keeping the lower end of the rotating component 17 swinging.

[0050] The second transmission assembly 18 includes a push rod 30 and symmetrically arranged hinge arms 29, second hinge rods 28, and transmission wheels 42. The push rod 30 is disposed within the slotted hole 31. The second hinge rod 28 is hinged inside the fixed arm 16, and the hinge arm 29 is disposed within the movable area 35. The transmission wheel 42 is connected to a belt 25, which drives the transmission wheel 42 to rotate, thereby driving the second hinge rod 28 to rotate. The second hinge rod 28 drives the hinge arm 29 to rotate, and the hinge arm 29 drives the push rod 30 to rotate.

[0051] The rotating component 17 consists of a contact end 43 and a clamping end 41. The contact end 43 has a vertical surface 44 and a guide slope 45. When the upper end of the rotating component 17 extends from the first opening area 38, the guide slope 45 guides the bushing. When the upper end of the rotating component 17 extends from the second opening area 39, the vertical surface 44 is inclined to guide the bushing. During clamping, the rotating component 17 enters the movable area 35 and is then clamped. Alternatively, after setting the distance between rotating components 17, this distance can be matched with the diameter or inner diameter of the bushing. After the rotating component 17 contacts the bushing, the frictional force between the rotating component 17 and the bushing needs to be greater than the weight of the bushing. The distance between rotating components 17 can also be set to be slightly larger than the inner diameter of the bushing or slightly smaller than the outer diameter of the bushing, thereby enabling the clamping of bushings of the same model.

[0052] A clamping ramp 4 is provided at the lower end of the clamping end 41. The clamping ramp 4 is used to clamp the bushing whose diameter is between the thickness of the fixed arm 16.

[0053] A strip-shaped hole 31 is provided on the contact end 43. The strip-shaped hole 31 is parallel to the vertical surface 44. The strip-shaped hole 31 cooperates with the push rod 30, pushing it to move inside, thereby rotating the rotating part 17 and keeping the push rod 30 moving within the strip-shaped hole 31. The length of the strip-shaped hole 31 is greater than the length of the hinge arm 29, and the diameter of the push rod 30 is smaller than the width of the strip-shaped hole 31. This allows the push rod 30 to move normally within the strip-shaped hole 31 and to normally push the rotating part 17.

[0054] The upper end of the vertical surface 44 is provided with multiple first elastic plates 33, and the upper end of the guide slope 45 is provided with multiple second elastic plates 34. When the first elastic plates 33 and the second elastic plates 34 are in contact with the inner or outer wall of the bushing, they are squeezed by the force, thereby achieving elastic clamping and buffering, and will not damage the inner or outer wall of the bushing.

[0055] The contact end 43 engages with the first opening region 38 and the second opening region 39, and extends from the first opening region 38 and the second opening region 39. The clamping end 41 extends from the third opening region 40 and swings.

[0056] like Figure 12 As shown, when the hinge arm 29 rotates in the direction of F1, it will also cause the upper end of the rotating member 17 to rotate in the direction of F1, while keeping the lower end of the rotating member 17 rotating in the opposite direction of F1. That is, the state in which the upper end of the rotating member 17 originally extended from the second opening area 39 is changed to the state in which the upper end of the rotating member 17 extends from the first opening area 38.

[0057] When the bushing is clamped, the upper end of the bushing is kept in contact with the bottom surface of the housing 12. Then the bushing can be pushed by the press-fit cylinder 10 to press it onto the workpiece.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal bushing press-fit production line characterized by, The utility model relates to a kind of mechanical arm, including: First conveying line; Second conveying line; And be provided between first conveying line and second conveying line, the lower end of the mechanical arm is equipped with fixed seat, rotating motor, first rotating motor, second rotating motor and press-fit air cylinder are equipped on the mechanical arm, the lower end of the press-fit air cylinder is equipped with press-fit cylinder, the lower end of the press-fit cylinder is equipped with press-fit mechanism, shell, third rotating motor, support arranged in the shell interior, first transmission assembly, fixed arm and rotating piece articulated in the fixed arm interior are equipped in the press-fit mechanism, the rotating piece is arranged in the interior of fixed arm by second transmission assembly, the third rotating motor is arranged in the middle of support, first bevel gear is equipped on the third rotating motor, the first bevel gear is meshed with first transmission assembly, first transmission assembly is connected with second transmission assembly transmission, second transmission assembly drives rotating piece swing in fixed arm; The fixed arm is composed of mounting portion and articulated portion, the second transmission assembly extends to the middle of mounting portion, the middle of articulated portion is hollow to form active region, The upper end of the rotating piece is articulated in active region by second transmission assembly, the lower end of the rotating piece is articulated in the middle of fixed arm by first articulated rod, when the second transmission assembly rotates, the upper end of rotating piece is rotated around first articulated rod, the upper end of rotating piece is kept out of active region, and the lower end of rotating piece is kept to swing.

2. The metal bushing press-fit production line of claim 1, wherein, First opening region, second opening region and third opening region are further equipped on the articulated portion, the first opening region and the second opening region are oppositely arranged, and the third opening region is between the first opening region and the second opening region.

3. The metal bushing press-fit production line of claim 2, wherein, The rotating piece is composed of contact end and clamping end, vertical surface and guide inclined plane are equipped on the contact end, and clamping inclined plane is equipped on the lower end of the clamping end.

4. The metal bushing press-fit production line of claim 3, wherein, A strip-shaped hole is equipped on the contact end, and the strip-shaped hole is arranged in parallel with the vertical surface.

5. The metal bushing press-fit production line of claim 4, wherein, First elastic sheet is equipped on the upper end of the vertical surface, and second elastic sheet is equipped on the upper end of the guide inclined plane.

6. The metal bushing press-fit production line of claim 5, wherein, The contact end cooperates with the first opening region and the second opening region, and extends from the first opening region and the second opening region, and the clamping end extends from the third opening region and swings.

7. The metal bushing press-fit production line of claim 6, wherein, Push rod, symmetrically arranged articulated arm, second articulated rod and transmission wheel are arranged in the second transmission assembly, the push rod is arranged in the strip-shaped hole, the second articulated rod is articulated in the interior of fixed arm, and the articulated arm is arranged in the active region.

8. The metal bushing press-fit production line of claim 7, wherein, The length of the strip-shaped hole is greater than the length of the articulated arm.

9. The metal bushing press-fit production line of claim 8, wherein, The diameter of the push rod is less than the width of the strip-shaped hole.

10. The metal bushing press-fit production line of claim 1, wherein, Second bevel gear, third bevel gear and symmetrically arranged belt are arranged in the first transmission assembly, the second bevel gear is connected with the support through first transmission rod, the third bevel gear is connected with the support through second transmission rod, and the second bevel gear is meshed with the first bevel gear.

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