Automatic assembling equipment for shell assembly

Abstract

The invention relates to the technical field of industrial automatic equipment, and discloses automatic assembly equipment for a shell assembly. The automatic assembly equipment comprises a machine table, and a rotating table and a manual feeding station are arranged on the machine table; an automatic component assembling station, a precise press-fitting station, a sealing ring airtightness detection station, an airtightness final detection station, a lock spring and lock catch assembling station, a laser marking and tracing station and an automatic sorting station are sequentially arranged above the rotating table in the flowing direction of components. According to the clamping device, the output end of the air cylinder pulls the connecting sliding block to move along the mounting groove in the mounting shell, the sliding rod gradually corrects the gap between the sliding rod and the other clamping groove, finally part clamping is achieved, and the problem that a clamping jaw, clamping the part, of the clamping groove continues to clamp the part in the past, and the cylindrical shell type part is extruded and deformed is avoided; pressure curve monitoring is innovatively introduced at a press-fitting station, visual inspection is introduced at an assembling and marking station, a complete digital file is established for each product, and accurate single-piece tracing is realized.

Description

Technical Field

[0001] This invention relates to the field of industrial automation equipment technology, and in particular to an automated assembly equipment for housing assemblies. Background Technology

[0002] With economic development and scientific and technological progress, automated production has become an indispensable part. The purpose of studying this automated assembly equipment for housing assembly is to meet the needs of automatic assembly, automatic inspection, press fitting, airtightness testing, and locking spring buckle assembly of joint assembly products in production, so as to achieve the goal of no outflow of non-conforming products, no mixing of materials, and single-piece traceability of products. A search revealed Chinese invention patent CN221849289U, which discloses an automatic assembly equipment assembly. With the cooperation of a flipping mechanism and a welding mechanism, it realizes the forward and reverse welding of semi-finished products and lenses. This facilitates operation and ensures the quality of the finished products after welding. When the locking mechanism and the conveying mechanism stably stack several finished products into the tray, the flipping block in the stacking mechanism can realize the automatic stacking of the trays. The automated process improves the overall stability of the assembly equipment and effectively prevents the outflow of defective products. However, in existing technologies, when grippers grasp parts, the centerline of the grippers inevitably deviates from the centerline of the parts when the positioned parts are transferred to the gripping point of the clamping unit. This can lead to a situation where one side of the gripper's groove holds the parts while the other side does not. Since the system program is fixed, the other side of the gripper will continue to tighten. Considering cost, most clamping units use a single power source to control multiple grippers simultaneously. This can cause the grippers that previously held the parts to continue holding them, potentially causing cylindrical shell-like parts to be squeezed and deformed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automated assembly equipment for housing assemblies, which solves the problem mentioned in the background art where, due to the assembly error of the grippers themselves, the centerline of the grippers inevitably deviates from the centerline of the parts, causing the grippers that previously held the parts in the clamping slots to continue holding the parts, which may result in the extrusion deformation of cylindrical housing parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automated assembly equipment for housing assembly includes: a machine base, on which a rotating table and a manual feeding station are provided. Above the rotating table, in order of parts flow, there are sequentially arranged automatic assembly station for sub-parts, precision pressing station, sealing ring airtightness testing station, airtightness final inspection station, locking spring and buckle assembly station, laser marking and traceability station and automatic sorting station. A central control system is provided, with a control cabinet on one side of the machine, and the central control system is mounted on the control cabinet. The central control system includes a MES for receiving data. The clamping part is installed at the automatic assembly station and the precision pressing station for sub-parts, and is used to avoid squeezing and deformation of cylindrical shell-type parts when the parts are continued to be clamped.

[0005] Furthermore, the machine is equipped with a vision inspection station, which includes a first vision inspection unit, a second vision inspection unit, and a third vision inspection unit. The first vision inspection unit, the second vision inspection unit, and the third vision inspection unit are sequentially arranged at the manual feeding station, the automatic assembly station for parts, and the laser marking and traceability station.

[0006] Furthermore, a pressure sensor is installed in the precision pressing station, and the pressure sensor is connected to the MES circuit.

[0007] Furthermore, the clamping part includes: A cylinder and a mounting housing are fixedly installed on a machine base. The mounting housing has a mounting groove and a connecting slider. The output end of the cylinder has a floating joint. The end of the floating joint away from the cylinder is connected to the connecting slider. The connecting slider has a sliding rod. The mounting slot is symmetrically provided with a left clamp and a right clamp. Each of the left and right clamps has a clamping groove on its opposite side. Each of the left and right clamps has a guide groove. The sliding rod is simultaneously set in the guide grooves on the left and right clamps.

[0008] Furthermore, the mounting groove is T-shaped, and a limiting groove is provided inside the mounting groove. Both the left and right grippers are provided with limiting blocks, which are located inside the limiting groove.

[0009] Furthermore, the guide groove is inclined, and the width of the guide groove is greater than the size of the slide rod.

[0010] Furthermore, the slide bar has rollers on its contact surface with the guide groove, and the rollers are smaller than the slide bar.

[0011] Furthermore, a conveyor belt is provided between the laser marking and traceability station and the automatic sorting station.

[0012] Furthermore, the airtight final inspection station includes a transfer mechanism and a testing mechanism.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the output end of the cylinder pulls the connecting slider to move along the mounting groove inside the mounting housing. Since the sliding rod on the connecting slider is simultaneously located in the guide grooves inclined on the left and right jaws, when the connecting slider moves along the mounting groove inside the mounting housing, the vertical force of the sliding rod is decomposed into a horizontal force in the mounting groove. When the clamping groove of one of the left and right jaws is in close contact with the part, the sliding rod will leave a gap with the clamping groove of the other jaw. Therefore, when the output end of the cylinder continues to retract, the sliding rod gradually corrects the gap between itself and the other clamping groove, ultimately achieving clamping of the part. This avoids the problem of compression deformation of cylindrical shell-like parts caused by the jaws that previously clamped the part continuing to clamp the part.

[0014] 2. This invention innovatively introduces pressure curve monitoring at the press-fitting station and visual inspection at the assembly and marking stations. All key data, including part appearance, press-fitting force, and marking content, are uploaded to the MES system in real time, establishing a complete digital file for each product. This enables precise single-piece traceability, provides a data foundation for quality analysis, and achieves full traceability of product quality, which is beneficial for quality analysis and process optimization.

[0015] 3. This invention has a formula management function, and product models can be switched with one click through the central control system; the gripping position of the parts assembly station, the product placement angle of the airtightness testing station, and the push-in position of the locking spring assembly station can all be automatically adjusted, enabling the equipment to quickly adapt to multi-variety mixed production lines with high flexibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automated assembly equipment for housing assemblies proposed in this invention; Figure 2 This is a top view of an automated assembly equipment for housing assemblies proposed in this invention; Figure 3 This is another overall structural schematic diagram of an automated assembly equipment for housing assembly proposed in this invention; Figure 4 This is a schematic diagram of the airtight final inspection station structure of an automated assembly equipment for housing assemblies proposed in this invention; Figure 5 This is a schematic diagram of the overall structure of the gripper in an automated assembly equipment for housing assemblies proposed in this invention; Figure 6 This is a schematic diagram of the internal structure of an automated assembly equipment for housing assemblies in the open state, as proposed in this invention. Figure 7This is a schematic diagram of the internal structure of the gripper in the closed state of an automated assembly equipment for housing assembly proposed in this invention; Figure 8 This is a schematic diagram of the connecting slider structure of an automated assembly equipment for housing assemblies proposed in this invention; Figure 9 This is a schematic diagram of the gripper structure of an automated assembly equipment for housing assemblies proposed in this invention.

[0017] Explanation of the labels in the diagram: 1. Machine base; 11. Rotary table; 111. Manual feeding station; 12. Automatic assembly station for sub-parts; 13. Precision pressing station; 14. Sealing ring airtightness testing station; 15. Airtightness final inspection station; 151. Transfer mechanism; 152. Testing mechanism; 16. Locking spring and buckle assembly station; 17. Laser marking and traceability station; 18. Conveyor belt; 181. Automatic sorting station; 2. Central control system; 3. Visual inspection station; 4. Clamping part; 41. Cylinder; 42. Mounting housing; 421. Mounting groove; 43. Left gripper; 44. Right gripper; 45. Clamping groove; 46. Limiting block; 47. Guide groove; 48. Connecting slider; 481. Slide rod; 49. Floating joint. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Example 1, please refer to Figures 1 to 9 This is the first embodiment of the present invention. This embodiment provides an automated assembly equipment for housing assembly, which includes a machine base 1. The machine base 1 is provided with a rotating table 11 and a manual feeding station 111. Above the rotating table 11, in order of the flow of parts, there are sequentially arranged automatic assembly station 12 for sub-parts, precision pressing station 13, sealing ring airtightness detection station 14, airtightness final inspection station 15, locking spring buckle assembly station 16, laser marking and traceability station 17 and automatic sorting station 181.

[0020] A conveyor belt 18 is provided between the laser marking and traceability station 17 and the automatic sorting station 181; the airtight final inspection station 15 includes a transfer mechanism 151 and an inspection mechanism 152.

[0021] Usage process: The operator places the sub-parts on the fixture, and visually inspects the sub-parts to check their placement, quantity, color, and dimensions. The entire process is protected by a safety light curtain. The operator must press the start button with both hands to enter the next cycle to ensure personal safety.

[0022] Next, the parts enter the automatic sub-part assembly station 12. The grippers move precisely to the corresponding positions according to the preset "product formula" and pick up the specified sub-parts. Before being installed into the main housing, the second vision inspection unit will "confirm" the picked parts again to ensure that the picking is correct and undamaged, and then upload the data to MES. This process is repeated for each part until the sub-parts are assembled.

[0023] Subsequently, the workpiece is transferred to the precision pressing station 13. Under the real-time feedback of the pressure sensor, the longitudinal pressing electric cylinder presses the sub-parts into the main housing with controllable force and stroke. The system automatically plots and analyzes the pressure curve. Any abnormal peak or trough value will trigger an alarm. The data is synchronously uploaded to the MES. Here, the MES is a management information system located between the upper-level planning and management system and the lower-level industrial control system, facing the workshop level. It is a current technology that provides operators and managers with information on the execution and tracking of plans, as well as the current status of all resources; it also serves as an important quality archive for the product.

[0024] During airtightness testing, the equipment first inserts the airtightness rod into the product interface at the sealing ring airtightness testing station 14 using a lifting electric cylinder for a quick airtightness pre-inspection. Then, the workpiece is transferred to the flexible transfer mechanism 151 at the final airtightness inspection station 15. This mechanism, through a combination of servo lifting, servo rotation, and rotating grippers, places the product into the three-station testing table at any required angle, enabling three products to undergo final airtightness testing simultaneously, greatly improving testing efficiency.

[0025] After the airtightness test is completed, the product enters the locking spring and buckle assembly station 16. Through the high-precision translation and lifting servo module, the locking spring and buckle are pushed into place to complete the final mechanical locking of the product.

[0026] After entering the laser marking and traceability station 17, the violet laser marking machine engraves a traceability code on the product surface; then, the third vision inspection department reads and verifies the clarity and correctness of the code, and binds the information that the ID product has passed the inspection to the product data packet in the MES system.

[0027] Example 2, as Figures 5 to 9 The following is a second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a clamping part 4 of an automated assembly equipment for housing assemblies. The clamping part 4 is disposed on the automatic assembly station 12 for sub-parts and the precision pressing station 13, in order to avoid extrusion deformation of cylindrical housing parts when the parts are continued to be clamped.

[0028] The clamping part 4 includes: a cylinder 41 fixedly installed on the machine base 1 and a mounting housing 42. The mounting housing 42 is provided with a mounting groove 421 and a connecting slider 48. The output end of the cylinder 41 is provided with a floating joint 49. The end of the floating joint 49 away from the cylinder 41 is connected to the connecting slider 48. The connecting slider 48 is provided with a sliding rod 481. The mounting slot 421 is symmetrically provided with a left gripper 43 and a right gripper 44. The opposite sides of the left gripper 43 and the right gripper 44 are provided with a clamping groove 45. The left gripper 43 and the right gripper 44 are both provided with a guide groove 47. The slide rod 481 is simultaneously provided in the guide groove 47 on the left gripper 43 and the right gripper 44.

[0029] The mounting slot 421 is T-shaped and has a limiting slot inside. The left gripper 43 and the right gripper 44 are both equipped with limiting blocks 46, which are located inside the limiting slot.

[0030] The guide groove 47 is inclined, and the width of the guide groove 47 is greater than the size of the slide rod 481; the slide rod 481 has a roller on the contact surface with the guide groove 47, and the size of the roller is smaller than the size of the slide rod 481.

[0031] With this configuration, when the clamping part 4 needs to clamp the positioned part, the output end of the cylinder 41 pulls the connecting slider 48 to move along the mounting groove 421 in the mounting housing 42. Since the sliding rod 481 on the connecting slider 48 is simultaneously located in the guide groove 47 inclined on the left jaw 43 and the right jaw 44, when the connecting slider 48 moves along the mounting groove 421 in the mounting housing 42, the vertical force of the sliding rod 481 is decomposed into a horizontal force in the mounting groove 421. Since the connecting slider 48 is located between the left jaw 43 and the right jaw 44, the left jaw 43 and the right jaw 44 move relative to each other in the mounting groove 421 to clamp the part.

[0032] Here, the width of the guide groove 47 is greater than the size of the slide rod 481. In order to reduce the friction between the slide rod 481 and the guide groove 47, the slide rod 481 is provided with a roller on the contact surface with the guide groove 47, and the size of the roller is smaller than the size of the slide rod 481; and the cylinder 41 and the connecting slider 48 are connected by a floating joint 49.

[0033] With this configuration, when the clamping groove 45 of one of the left gripper 43 and right gripper 44 is in close contact with the part, the slide rod 481 will leave a gap with the clamping groove 45 of the other gripper. Therefore, when the output end of the cylinder 41 continues to retract, the slide rod 481 gradually corrects the gap between itself and the other clamping groove 45, and finally achieves clamping of the part. This avoids the problem of compression deformation of cylindrical shell-type parts caused by the gripper that previously clamped the part in the clamping groove 45 continuing to clamp the part.

[0034] Example 3, as Figures 1 to 3 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a central control system 2 for an automated assembly equipment for housing assemblies. A control cabinet is provided on one side of the machine base 1, and the central control system 2 is installed on the control cabinet. The central control system 2 includes a MES for receiving data.

[0035] The machine 1 is equipped with a vision inspection station 3, which includes a first vision inspection unit, a second vision inspection unit, and a third vision inspection unit. The first vision inspection unit, the second vision inspection unit, and the third vision inspection unit are sequentially set on the manual feeding station 111, the automatic parts assembly station 12, and the laser marking and traceability station 17. The precision pressing station 13 is equipped with a pressure sensor, which is connected to the MES circuit.

[0036] The workpiece is transferred to the precision pressing station 13. Under the real-time feedback of the pressure sensor, the longitudinal pressing electric cylinder presses the sub-parts into the main housing with controllable force and stroke. The system automatically plots and analyzes the pressure curve. Any abnormal peak or valley value will trigger an alarm. The data is synchronously uploaded to MES as an important quality file for the product.

[0037] During airtightness testing, the equipment first inserts the airtightness rod into the product interface at the sealing ring airtightness testing station 14 using a lifting electric cylinder for a rapid pre-airtightness inspection. Subsequently, the workpiece is transferred to the flexible transfer mechanism 151 at the final airtightness inspection station 15. This mechanism, through a combination of servo lifting, servo rotation, and rotating grippers, places the product into the three-station testing table at any desired angle, enabling three products to undergo final airtightness testing simultaneously, greatly improving testing efficiency.

[0038] After the airtightness test is completed, the product enters the locking spring and buckle assembly station 16. Through the high-precision translation and lifting servo module, the locking spring and buckle are pushed into place to complete the final mechanical locking of the product.

[0039] After entering the laser marking and traceability station 17, the violet laser marking machine engraves the traceability code on the product surface; then, the third vision inspection department reads and verifies the clarity and correctness of the code, and binds the information that the ID product has passed all inspections to the product data packet in the MES system.

[0040] The central control system 2 integrates the inspection results from all stations (visual initial inspection, assembly re-inspection, pressure curve, airtightness test, and marking verification) and makes a final OK (qualified) or NG (unqualified) judgment on the product. Based on the judgment result, the servo translation mechanism of the OK / NG sorting station automatically sorts the products to different outflow channels after receiving the command from the central control system 2, thus completing the entire automated process.

[0041] As can be seen from the above, the working principle of this application is as follows: The electric gripper moves precisely to the corresponding position according to the preset "product formula" and picks up the specified sub-parts. Before being installed into the main housing, the second vision inspection unit will "confirm" the picked parts again to ensure that the picking is correct and undamaged, and then upload the data to MES. This process is repeated for each part until all sub-parts are assembled.

[0042] When the clamping part 4 needs to clamp the positioned part, the output end of the cylinder 41 pulls the connecting slider 48 to move along the mounting groove 421 in the mounting housing 42. Since the sliding rod 481 on the connecting slider 48 is simultaneously in the guide groove 47 inclined on the left jaw 43 and the right jaw 44, when the connecting slider 48 moves along the mounting groove 421 in the mounting housing 42, the vertical force of the sliding rod 481 is decomposed into a horizontal force in the mounting groove 421. Since the connecting slider 48 is located between the left jaw 43 and the right jaw 44, the left jaw 43 and the right jaw 44 move relative to each other in the mounting groove 421 to clamp the part.

[0043] Here, the width of the guide groove 47 is greater than the size of the slide rod 481. In order to reduce the friction between the slide rod 481 and the guide groove 47, the slide rod 481 is provided with a roller on the contact surface with the guide groove 47, and the size of the roller is smaller than the size of the slide rod 481. The cylinder 41 and the connecting slider 48 are connected by a floating joint 49. With this configuration, when the clamping groove 45 of one of the left gripper 43 and the right gripper 44 is in close contact with the part, the slide rod 481 will leave a gap with the clamping groove 45 of the other gripper. Therefore, when the output end of the cylinder 41 continues to retract, the slide rod 481 gradually corrects the gap with the other clamping groove 45, and finally achieves clamping of the part, avoiding the problem of compression deformation of cylindrical shell-type parts caused by the gripper that previously clamped the part in the clamping groove 45 continuing to clamp the part.

[0044] Subsequently, the workpiece is transferred to the precision pressing station 13. Under the real-time feedback of the pressure sensor, the longitudinal pressing electric cylinder presses the sub-parts into the main housing with controllable force and stroke. The system automatically plots and analyzes the pressure curve. Any abnormal peak or valley value will trigger an alarm. The data is synchronously uploaded to MES as an important quality file for the product.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An automated housing assembly apparatus, comprising: Include: The machine table (1), the rotating table (11) and the artificial loading station (111) are arranged on the machine table (1), the rotating table (11) is sequentially provided with a part automatic assembly station (12), a precision press assembly station (13), a sealing ring air tightness detection station (14), an air tightness final inspection station (15), a lock spring lock buckle assembly station (16), a laser marking and tracing station (17) and an automatic sorting station (181) from top to bottom according to the part flow direction; The general control system (2) is arranged on the control cabinet on one side of the machine table (1), and the general control system (2) comprises an MES for receiving data; The clamping part (4) is arranged on the part automatic assembly station (12) and the precision press assembly station (13), which is used to avoid extrusion deformation of the cylindrical shell type part when the part is continuously clamped.

2. An automated housing assembly apparatus according to claim 1, wherein, The machine table (1) is provided with a visual detection station (3), the visual detection station (3) comprises a first visual detection part, a second visual detection part and a third visual detection part, and the first visual detection part, the second visual detection part and the third visual detection part are sequentially arranged on the artificial loading station (111), the part automatic assembly station (12) and the laser marking and tracing station (17).

3. An automated housing assembly apparatus according to claim 1, wherein, The precision press assembly station (13) is provided with a pressure sensor, and the pressure sensor is connected with the MES circuit.

4. An automated housing assembly apparatus according to claim 1, wherein, The clamping part (4) comprises: A pneumatic cylinder (41) and a mounting shell (42) are fixedly installed on the machine table (1), the mounting shell (42) is provided with a mounting groove (421), the mounting groove (421) is provided with a connecting sliding block (48), the output end of the pneumatic cylinder (41) is provided with a floating joint (49), one end of the floating joint (49) away from the pneumatic cylinder (41) is connected with the connecting sliding block (48), and the connecting sliding block (48) is provided with a sliding rod (481); The mounting groove (421) is symmetrically provided with a left clamping jaw (43) and a right clamping jaw (44), one side of the left clamping jaw (43) and the right clamping jaw (44) is provided with a clamping groove (45), and the left clamping jaw (43) and the right clamping jaw (44) are provided with a guide groove (47); 5. An automated housing assembly apparatus according to claim 4, wherein, The mounting groove (421) is provided in a "T" shape, the mounting groove (421) is provided with a limiting groove, and the left clamping jaw (43) and the right clamping jaw (44) are provided with a limiting block (46), and the limiting block (46) is arranged in the limiting groove.

6. An automated housing assembly apparatus as defined in claim 4, wherein, The guide groove (47) is inclined, and the groove width of the guide groove (47) is greater than the size of the sliding rod (481).

7. An automated housing assembly apparatus as defined in claim 4, wherein, The sliding rod (481) is provided with a roller on the contact surface with the guide groove (47), and the size of the roller is smaller than the size of the sliding rod (481).

8. An automated housing assembly apparatus according to claim 1, wherein, The laser marking and tracing station (17) and the automatic sorting station (181) are provided with a conveying belt (18).

9. An automated housing assembly apparatus according to claim 1, wherein, The air tightness final inspection station (15) comprises a transfer mechanism (151) and a detection mechanism (152).

Images