General assembly device for automatic chain assembly line

Abstract

The final assembly device comprises an outer chain link placing unit, an inner chain link assembling unit, a press machine and a chain translation unit, the outer chain link placing unit and the press machine are sequentially arranged on the upper side of the chain translation unit, and the inner chain link assembling unit is arranged on the upper side of the outer chain link placing unit. The outer chain link placing unit is used for placing outer chain links, the inner chain link assembling unit is used for sleeving corresponding pin shafts of two adjacent outer chain links with inner chain links, and the chain translation unit is used for driving the outer chain links and the inner chain links which are connected together to pass through a press machine. And manpower resources are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of chain production equipment, in particular to an assembly device for a chain automatic assembly line. Background Art

[0002] Chains are commonly used components in the mechanical field, often used for conveying and transmission. They usually include inner chain links, and two outer chain plates are used to connect adjacent inner chain links. The outer chain plates and the inner chain links are connected by pins, and the pins are usually riveted or pressed by retaining rings.

[0003] The existing assembly method for drive chains generally uses manual assembly, and after manual assembly, a hydraulic press is used to press the pins. However, this assembly method has low efficiency. A chain assembly device with the application (patent) number: CN202123348622.8 includes a workbench. A conveying device is provided on the horizontal center line of the workbench. Positioning blocks are arranged at intervals on the conveying device. A mechanical gripper and a pressing device are successively arranged on the top surface of the workbench from right to left. The mechanical gripper and the pressing device are respectively arranged on both sides of the conveying device. After installing the inner chain plates and rollers of the chain, they are manually placed on the positioning blocks, and then the outer chain plates and pins of the chain are automatically installed, and the pins are riveted to prevent loosening. The production efficiency and automation degree are high. However, after installing the inner clamping plates and sleeves of the chain, they need to be manually placed on the positioning blocks, so the automation degree still needs to be improved, and the use of human resources is increased. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art, and propose an assembly device for a chain automatic assembly line, which can improve the automation degree and production efficiency and save human resources.

[0005] To achieve the above purpose, the present invention proposes an assembly device for a chain automatic assembly line, including an outer chain link placement unit, an inner chain link assembly unit, a press, and a chain translation unit. The outer chain link placement unit and the press are successively arranged above the chain translation unit. The inner chain link assembly unit is arranged above the outer chain link placement unit. The outer chain link placement unit is used to place outer chain links. The inner chain link assembly unit is used to fit inner chain links onto the corresponding pins of two adjacent outer chain links. The chain translation unit is used to drive the connected outer chain links and inner chain links past the press.

[0006] Preferably, the outer chain link placement unit includes an outer chain link receiving support and two positioning baffles arranged on the outer chain link receiving support.

[0007] Preferably, a fixed seat is provided at the fixed end of the positioning baffle. Two kidney-shaped holes are provided on the fixed seat. A screw rod provided on the receiving support is inserted through the kidney-shaped holes. A fastening nut for pressing and fixing the fixed seat is provided on the screw rod. An inclined guiding surface I is provided on the inner side of the front end of the positioning baffle.

[0008] Preferably, the inner link assembly unit includes an inner link receiving support, an X-direction driving mechanism, a Y-direction driving mechanism, a Z-direction driving mechanism, two inner link receiving platforms, and an inner link picking mechanism. An X-direction driving mechanism is provided on the inner link receiving support. A Y-direction driving mechanism is provided on the X-direction driving mechanism. A Z-direction driving mechanism is provided on the Y-direction driving mechanism. An inner link picking mechanism is provided on the Z-direction driving mechanism. An inner link receiving platform is provided on one side of the inner link receiving support.

[0009] Preferably, the inner link receiving platform includes a support table, a double-headed cylinder, two seat bodies, a placing table, two long slot holes, and two positioning shafts. Two seat bodies and a double-headed cylinder located between the two seat bodies are provided on the support table. A placing table is provided on the seat body. Two front and rear long slot holes are provided on the placing table. Positioning shafts are provided on the two piston rods of the double-headed cylinder, and the two positioning shafts respectively pass through the corresponding long slot holes.

[0010] Preferably, the inner link picking mechanism includes a bracket. A sleeve body matched with the inner link is provided on the bracket. An electromagnet is provided on the bracket inside the sleeve body.

[0011] Preferably, the X-direction driving mechanism, the Y-direction driving mechanism, and the Z-direction driving mechanism are all composed of a servo motor II, a slide rail II, a ball screw, a screw nut, and a slide seat II. A slide seat II in sliding fit is provided on the slide rail II. The servo motor II drives the ball screw to rotate. A screw nut fixedly connected with the slide seat II is provided on the ball screw. The Z-direction driving mechanism is provided on the Y-direction driving mechanism through a mounting seat.

[0012] Preferably, the chain translation unit includes a frame body. A slide rail I is provided on the frame body. A slide seat I in sliding fit is provided on the slide rail I. A driving cylinder, a linear bearing, and a servo motor I are provided on the slide seat. A driving pin is inserted through the linear bearing. The piston rod of the driving cylinder is fixedly connected with the driving pin. A gear is provided on the rotating shaft of the servo motor I. A rack meshed with the gear is provided on the frame body.

[0013] Preferably, a support guide rail is provided on the installation table of the press. An inclined guiding surface II is provided at the front end of the support guide rail.

[0014] Preferably, a vision alignment system is provided on the outer link receiving support. Two front and rear reference lines are provided on the outer link receiving support.

[0015] Advantages of the present invention: In the present invention, an outer link placing unit and a press are successively arranged on the upper side of a chain translation unit, and an inner link assembling unit is arranged on the upper side of the outer link placing unit. The outer link placing unit is used for placing outer links, the inner link assembling unit is used for sleeving inner links on corresponding pins of two adjacent outer links, and the chain translation unit is used for driving the connected outer links and inner links to pass through the press. Compared with the prior art, the automation degree and production efficiency can be improved, and human resources can be saved.

[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view structural schematic diagram of an overall assembly device for an automatic chain assembly line of the present invention; Figure 2 is a structural schematic diagram of the outer link placing unit; Figure 3 is a partial side view of an overall assembly device for an automatic chain assembly line of the present invention; Figure 4 is a structural schematic diagram of the inner link assembling unit; Figure 5 is a structural schematic diagram of the inner link picking mechanism; Figure 6 is a structural schematic diagram of the inner link receiving platform; Figure 7 is a structural schematic diagram of the chain translation unit.

[0018] In the figure: 1 - outer link placing unit, 2 - inner link assembling unit, 3 - press, 4 - chain translation unit, 5 - support guide rail, 6 - guide surface II, 7 - outer link, 8 - inner link, 11 - outer link receiving support, 12 - positioning baffle, 13 - fixed seat, 14 - kidney-shaped hole, 15 - screw, 16 - fastening nut, 17 - guide surface I, 18 - vision alignment system, 19 - reference line, 21 - inner link receiving support, 22 - X-direction driving mechanism, 23 - Y-direction driving mechanism, 24 - Z-direction driving mechanism, 25 - inner link receiving platform, 26 - inner link picking mechanism, 27 - mounting seat, 41 - frame body, 42 - slide rail I, 43 - slide block I, 44 - driving cylinder, 45 - linear bearing, 46 - servo motor I, 47 - driving pin, 48 - gear, 49 - rack, 251 - support table, 252 - double-headed cylinder, 253 - seat body, 254 - placing table, 255 - long slot hole, 256 - positioning shaft, 261 - support, 262 - sleeve, 263 - electromagnet, 201 - servo motor II, 202 - slide rail II, 203 - ball screw, 204 - screw nut, 205 - slide block II. Detailed implementation mode

[0019] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 For a general assembly device of a chain automatic assembly line according to the present invention, it includes an outer link placing unit 1, an inner link assembling unit 2, a press 3 and a chain translation unit 4. The outer link placing unit 1 and the press 3 are successively arranged on the upper side of the chain translation unit 4. The inner link assembling unit 2 is arranged on the upper side of the outer link placing unit 1. The outer link placing unit 1 is used for placing outer links. The inner link assembling unit 2 is used for sleeving inner links on the corresponding pins of two adjacent outer links. The chain translation unit 4 is used for driving the connected outer links and inner links to pass through the press 3.

[0020] The outer link placing unit 1 includes an outer link receiving support 11 and two positioning baffles 12 arranged on the outer link receiving support 11.

[0021] The fixed end of the positioning baffle 12 is provided with a fixed seat 13. Two waist-shaped holes 14 are arranged on the fixed seat 13. A screw 15 arranged on the receiving support 11 passes through the waist-shaped holes 14. A fastening nut 16 for pressing and fixing the fixed seat 13 is arranged on the screw 15. An inclined guiding surface I 17 is arranged on the inner side of the front end of the positioning baffle 12.

[0022] The inner link assembling unit 2 includes an inner link receiving support 21, an X-direction driving mechanism 22, a Y-direction driving mechanism 23, a Z-direction driving mechanism 24, two inner link receiving platforms 25 and an inner link picking mechanism 26. The X-direction driving mechanism 22 is arranged on the inner link receiving support 21. The Y-direction driving mechanism 23 is arranged on the X-direction driving mechanism 22. The Z-direction driving mechanism 24 is arranged on the Y-direction driving mechanism 23. The inner link picking mechanism 26 is arranged on the Z-direction driving mechanism 24. An inner link receiving platform 25 is arranged on one side of the inner link receiving support 21.

[0023] The inner link receiving platform 25 includes a support platform 251, a double-headed cylinder 252, two seat bodies 253, a placing platform 254, two long slot holes 255 and two positioning shafts 256. Two seat bodies 253 and a double-headed cylinder 252 located between the two seat bodies 253 are arranged on the support platform 251. A placing platform 254 is arranged on the seat body 253. Two front and rear long slot holes 255 are arranged on the placing platform 254. Positioning shafts 256 are arranged on the two piston rods of the double-headed cylinder 252. The two positioning shafts 256 respectively pass through the corresponding long slot holes 255. The diameter of the positioning shaft 256 is smaller than the sleeve diameter of the inner link.

[0024] The inner link material taking mechanism 26 includes a bracket 261, a sleeve 262 matching with the inner link is arranged on the bracket 261, and an electromagnet 263 is arranged on the bracket 261 inside the sleeve 262.

[0025] The X-direction driving mechanism 22, the Y-direction driving mechanism 23 and the Z-direction driving mechanism 24 are all composed of a servo motor II 201, a slide rail II 202, a ball screw 203, a screw nut 204 and a slide seat II 205. The slide seat II 205 is arranged on the slide rail II 202 in a sliding fit manner. The servo motor II 201 drives the ball screw 203 to rotate. The screw nut 204 fixedly connected with the slide seat II 205 is arranged on the ball screw 203. The Z-direction driving mechanism 24 is arranged on the Y-direction driving mechanism 23 through a mounting seat 27.

[0026] The chain translation unit 4 includes a frame body 41. A slide rail I 42 is arranged on the frame body 41. A slide seat I 43 is arranged on the slide rail I 42 in a sliding fit manner. A driving cylinder 44, a linear bearing 45 and a servo motor I 46 are arranged on the slide seat 43. A driving pin 47 is arranged through the linear bearing 45. The piston rod of the driving cylinder 44 is fixedly connected with the driving pin 47. A gear 48 is arranged on the rotating shaft of the servo motor I 46. A rack 49 meshing with the gear 48 is arranged on the frame body 41.

[0027] A support guide rail 5 is arranged on the installation table of the press 3, and an inclined guide surface II 6 is arranged at the front end of the support guide rail 5.

[0028] A vision alignment system 18 is arranged on the outer link receiving support 11, and two front and rear reference lines 19 are arranged on the outer link receiving support 11.

[0029] The working process of the present invention: During the working process of the general assembly device for a chain automatic assembly line according to the present invention, the vision alignment system 18 guides the outer chain link sucked by a six-axis robot to be placed on the outer chain link receiving support 11, and the rear end of the outer chain link 7 (including an outer chain plate and two pin shafts provided on the outer chain plate) coincides with the front reference line 19. Then, the driving cylinder 44 is started to drive the driving pin 47 to extend between the two pin shafts. Then, the servo motor I 46 is started to drive the gear 48 to rotate and move along the rack 49, so as to drive the slide I 43 to move through the servo motor I 46. The slide I 43 drives the outer chain link 7 to move backward a certain distance through the driving pin 47, so that the front end of the outer chain link 7 coincides with the rear reference line 19. Then, a six-axis robot sucks an outer chain link 7 and places it on the outer chain link receiving support 11 again, and the rear end of the outer chain link 7 coincides with the front reference line 19. Then, through the cooperation of the X-direction driving mechanism 22, the Y-direction driving mechanism 23 and the Z-direction driving mechanism 24, the sleeve body 262 is sleeved on the inner chain link 8 placed on the corresponding inner chain link receiving platform 25. Then, the electromagnet 263 is started to attract and fix the inner chain link 8. Then, through the cooperation of the X-direction driving mechanism 22, the Y-direction driving mechanism 23 and the Z-direction driving mechanism 24, the sleeve body 262 carrying the inner chain link 8 is driven to move to the assembly position to sleeve the inner chain link 8 on the corresponding pin shafts of two adjacent outer chain links. Repeating the above operations realizes the sleeved connection between the outer chain link 7 and the inner chain link 8, and enters the support guide rail 5 on the press 3 driven by the chain translation unit 4. When running to the press-fitting position, then a six-axis robot grabs an outer chain plate and sleeves it on the pin shafts of two outer chain links sleeved by the inner chain link 8, and then the press 3 is started to perform the press-fitting operation.

[0030] The reference line 19 includes a reference straight line 191 and a reference arc 192. The reference arc 192 is used for the outer chain plate with an arc-shaped end, and the reference straight line 191 is used for the outer chain plate with a straight-shaped end.

[0031] When the inner chain link 8 on the inner chain link receiving platform 25 is taken away, a four-axis robot grabs the inner chain link 8 and places it on the inner chain link receiving platform 25, and the two sleeves of the inner chain link 8 are respectively sleeved on the two positioning shafts 256. Then, the two piston rods of the double-headed cylinder 252 are extended to drive the two positioning shafts 256 to move in the opposite direction at the same time, so that the positioning shafts 256 tension and position the inner chain link 8. When taking the inner chain link 8, the two piston rods of the double-headed cylinder 252 are retracted to drive the positioning shafts 256 to return to their original positions.

[0032] The above embodiments are illustrative of the present invention, not limiting of the present invention. Any solution obtained by simply transforming the present invention belongs to the protection scope of the present invention.

Claims

1. An overall assembly device for a chain automatic assembly line, characterized in that: It includes an outer link placing unit (1), an inner link assembling unit (2), a press (3) and a chain translation unit (4). The outer link placing unit (1) and the press (3) are successively arranged on the upper side of the chain translation unit (4). The inner link assembling unit (2) is arranged on the upper side of the outer link placing unit (1). The outer link placing unit (1) is used for placing outer links. The inner link assembling unit (2) is used for sleeving inner links on the corresponding pin shafts of two adjacent outer links. The chain translation unit (4) is used for driving the connected outer links and inner links to pass through the press (3).

2. The general assembly device for a chain automatic assembly line according to claim 1, characterized in that: The outer link placing unit (1) includes an outer link receiving support (11) and two positioning baffles (12) arranged on the outer link receiving support (11).

3. An assembly device for a chain automatic assembly line according to claim 1, characterized in that: The fixed end of the positioning baffle (12) is provided with a fixed seat (13). Two waist-shaped holes (14) are arranged on the fixed seat (13). A screw rod (15) arranged on the receiving support (11) passes through the waist-shaped holes (14). A fastening nut (16) for pressing and fixing the fixed seat (13) is arranged on the screw rod (15). An inclined guiding surface I (17) is arranged on the inner side of the front end of the positioning baffle (12).

4. The general assembly device for a chain automatic assembly line according to claim 1, characterized in that: The inner link assembling unit (2) includes an inner link receiving support (21), an X-direction driving mechanism (22), a Y-direction driving mechanism (23), a Z-direction driving mechanism (24), two inner link receiving platforms (25) and an inner link picking mechanism (26). The X-direction driving mechanism (22) is arranged on the inner link receiving support (21). The Y-direction driving mechanism (23) is arranged on the X-direction driving mechanism (22). The Z-direction driving mechanism (24) is arranged on the Y-direction driving mechanism (23). The inner link picking mechanism (26) is arranged on the Z-direction driving mechanism (24). An inner link receiving platform (25) is arranged on one side of the inner link receiving support (21).

5. The general assembly device for a chain automatic assembly line according to claim 4, characterized in that: The inner link receiving platform (25) includes a support platform (251), a double-headed cylinder (252), two seat bodies (253), a placing platform (254), two long slot holes (255) and two positioning shafts (256). Two seat bodies (253) and the double-headed cylinder (252) located between the two seat bodies (253) are arranged on the support platform (251). A placing platform (254) is arranged on the seat body (253). Two front and rear long slot holes (255) are arranged on the placing platform (254). Positioning shafts (256) are arranged on the two piston rods of the double-headed cylinder (252). The two positioning shafts (256) respectively pass through the corresponding long slot holes (255). The diameter of the positioning shaft (256) is smaller than the sleeve diameter of the inner link.

6. The general assembly device for a chain automatic assembly line according to claim 4, characterized in that: The inner link picking mechanism (26) includes a bracket (261). A sleeve body (262) matched with the inner link is arranged on the bracket (261). An electromagnet (263) is arranged on the bracket (261) inside the sleeve body (262).

7. The general assembly device for a chain automatic assembly line according to claim 4, characterized in that: The X-axis driving mechanism (22), the Y-axis driving mechanism (23) and the Z-axis driving mechanism (24) are all composed of a servo motor II (201), a slide rail II (202), a ball screw (203), a screw nut (204) and a slide seat II (205); the slide rail II (202) is provided with a slide seat II (205) that is slidably matched; the servo motor II (201) drives the ball screw (203) to rotate; the ball screw (203) is provided with a screw nut (204) that is fixedly connected to the slide seat II (205); and the Y-axis driving mechanism (23) is provided with a Z-axis driving mechanism (24) via a mounting seat (27).

8. The general assembly device for a chain automatic assembly line according to claim 1, characterized in that: The chain translation unit (4) comprises a frame (41), a slide rail I (42) is provided on the frame (41), a slide seat I (43) is provided on the slide rail I (42), a driving cylinder (44), a linear bearing (45) and a servo motor I (46) are provided on the slide seat (43), a driving pin (47) is passed through the linear bearing (45), a piston rod of the driving cylinder (44) is fixedly connected to the driving pin (47), a gear (48) is provided on the rotating shaft of the servo motor I (46), and a rack (49) meshingly connected to the gear (48) is provided on the frame (41).

9. The general assembly device for a chain automatic assembly line according to claim 1, characterized in that: A support guide rail (5) is provided on the mounting platform of the press machine (3), and an inclined guide surface II (6) is provided at the front end of the support guide rail (5).

10. A general assembly device for a chain automatic assembly line according to any one of claims 1 to 9, characterized in that: A visual alignment system (18) is provided on the outer chain link receiving support (11), and two front and rear reference lines (19) are provided on the outer chain link receiving support (11).

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