Automatic hinge grabbing, assembling and locking equipment

Abstract

The invention discloses automatic hinge grabbing, assembling and locking equipment, and relates to the technical field of tool box assembling. The device comprises a base, a supporting column is fixedly connected to the upper surface of the base, a stepping motor is fixedly installed in the supporting column, a supporting plate is fixedly connected to the output end of the stepping motor, placing bases are connected to the upper surface of the supporting plate in an annular array mode, and a positioning assembly is arranged on one side of each placing base. A grabbing assembly and a screw locking assembly are arranged on the upper surface of the base correspondingly, the grabbing assembly with vacuum adsorption is arranged, a hinge needing to be assembled is adsorbed, grabbed and moved to the assembling position according to the vacuum adsorption principle, the grabbing efficiency of the hinge is effectively improved, and through the screw locking assembly, the assembly efficiency of the hinge is improved. The multiple screw locking structures are arranged for synchronous screw locking operation, the assembling efficiency of the tool box is remarkably improved, through the positioning assembly, a hinge placed on the tool box can be conveniently and stably fixed, and displacement of the hinge is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of tool box assembly, in particular to an automatic hinge grabbing, assembling and locking device. Background Art

[0002] In today's booming automotive manufacturing industry, automotive tool boxes are important supporting components for vehicles. Their production efficiency and quality directly affect the progress and quality of vehicle assembly. With the continuous advancement of industrial automation technology, the market has put forward higher requirements for the automation and intelligence of automotive tool box production. There is an urgent need for an integrated device that can realize automatic hinge grasping, precise positioning, efficient assembly and reliable locking.

[0003] There are still some problems in the use of existing hinge automatic grasping, assembly and locking equipment:

[0004] First of all, there are still some problems in the use of existing hinge automatic grasping, assembly and locking equipment:

[0005] First, traditionally, mechanical grippers are used to grab the hinges that need to be assembled. Mechanical grippers are prone to uneven contact force and slippage during grabbing, resulting in grabbing failures and reducing the efficiency of grabbing the hinges.

[0006] Secondly, hinges are usually fixed to the toolbox with multiple screws, but traditional equipment uses a method of tightening the screws one by one. This one-by-one operation mode is time-consuming and seriously affects the assembly efficiency of the toolbox, making it difficult to meet the needs of efficient production.

[0007] In addition, during the assembly process, due to the lack of effective positioning measures for the hinge, the hinge is prone to shifting when tightening the screws, affecting its assembly accuracy and assembly effect. Summary of the Invention

[0008] In order to solve the problems of low grasping efficiency and low locking efficiency of existing hinge automatic grasping, assembling and locking equipment during use and lack of a stable positioning structure for the hinge; the purpose of the present invention is to provide an automatic hinge grasping, assembling and locking equipment.

[0009] To solve the above technical problems, the present invention adopts the following technical solutions: a hinge automatic grasping, assembling and locking device, comprising a base, the upper surface of the base is fixedly connected to a support column, a stepper motor is fixedly installed inside the support column, and the output end of the stepper motor is fixedly connected to a support plate, which firmly supports the stepper motor through the support column to achieve precise rotation and positioning of the support plate. At the same time, the lower surface of the support plate is connected to the upper surface of the support column with damping rotation to ensure the stability of the support plate during rotation. The upper surface of the support plate is connected to a placement seat in an annular array, which is convenient for placing the tool box to be assembled. At the same time, the interior of the placement seat is provided with a structure for automatically fixing the tool box, which is not described here as an innovative point. A positioning component is provided on one side of the placement seat, and a grasping component and a locking screw component are respectively provided on the upper surface of the base. The placement seat in the annular array cooperates with the grasping component, the locking screw component and the positioning component to form a multi-station parallel operation mode, which significantly improves the production efficiency and automation level of the equipment.

[0010] Preferably, the grasping assembly includes a guide rail, which is fixedly mounted on the upper surface of the base, and a first cylinder is fixedly mounted on one side of the guide rail, and a first mounting bracket used in conjunction with the first cylinder is fixedly mounted on one side of the guide rail, and the first cylinder is fixedly mounted on the upper surface of the first mounting bracket, and the output end of the first cylinder is fixedly connected to the movable bracket, and the first cylinder is stably fixed on the guide rail through the first mounting bracket, driving the movable bracket to slide precisely along the guide rail, and a second cylinder is fixedly mounted on the upper surface of the movable bracket, and the output end of the second cylinder is fixedly connected to a vacuum suction cup, and the second cylinder controls the lifting and lowering of the vacuum suction cup to achieve precise grasping and placement of the hinge, and the vacuum suction cup is arranged above the placement seat, and the upper surface of the base is fixedly connected to a first storage bin used in conjunction with the vacuum suction cup, and the first storage bin ensures the continuity of material supply and improves the grasping efficiency and accuracy.

[0011] Preferably, the screw locking assembly includes a bracket, which is fixedly mounted on the upper surface of the base, and the internal pneumatic sliding connection of the bracket is connected to a moving seat, the bracket provides stable support for the moving seat, and the pneumatic drive enables the moving seat to move quickly, and a third cylinder is fixedly mounted inside the moving seat, and the output end of the third cylinder is fixedly connected to the installation box, and the third cylinder controls the lifting and lowering of the installation box, and a DC motor is fixedly mounted on the internal rectangular array of the installation box, and the output end of the DC motor passes through the inner cavity of the installation box and is fixedly connected to a locking head. The DC motor in the rectangular array and the magnetic locking head can operate multiple screws at the same time, and a second material storage bin for use with the locking head is fixedly mounted on one side of the bracket, and the locking head is a magnetic head. The magnetic head further improves its assembly effect, so that the locking head has a magnetic function, and the second storage bin ensures the supply of screws, which greatly improves the efficiency and reliability of locking screws.

[0012] The cam is fixedly mounted on one side of the guide housing, and a servo motor is fixedly mounted on one side of the guide housing, and a second mounting bracket used in conjunction with the servo motor is fixedly mounted on one side of the guide housing, and the servo motor is fixedly mounted on the upper surface of the second mounting bracket, the servo motor is stably mounted through the second mounting bracket, and the output end of the servo motor passes through one side of the guide housing and is fixedly connected to a screw rod, and a threaded sleeve on the outer surface of the screw rod is provided with a slider, and the servo motor drives the screw rod to rotate so that the slider moves precisely. The outer surface of the slider is slidably connected to the inner cavity of the guide housing, and the guide housing provides precise guidance for the slider, and one end of the screw rod facing away from the output end of the servo motor is rotatably connected to the inner cavity of the guide housing, and one side of the slider is fixedly connected to a mounting sleeve, and a fourth cylinder is fixedly mounted on the inside of the mounting sleeve, and a positioning plate is fixedly connected to the output end of the fourth cylinder, and the positioning plate is a rubber anti-skid plate, and the fourth cylinder controls the positioning plate made of the rubber anti-skid plate to press the hinge, thereby achieving precise positioning and fixation of the hinge, preventing displacement when locking the screw, and improving assembly precision and product quality.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This application provides a gripping assembly with vacuum adsorption, which utilizes the principle of vacuum adsorption to adsorb and grasp the hinge to be assembled and move it to the assembly position. Compared with traditional mechanical gripping, the gripping effect is better and the efficiency of the hinge gripping is effectively improved.

[0015] 2. This application uses a screw locking assembly to set up multiple wire locking structures for synchronous wire locking operations, which is more time-saving than the one-by-one operation mode and significantly improves the assembly efficiency of the toolbox to meet the needs of efficient production;

[0016] 3. This application uses positioning components to facilitate the firm fixation of the hinge placed on the toolbox, effectively preventing the hinge from shifting during the screw tightening process, ensuring the accuracy of the installation position of each component, and ensuring the assembly accuracy and assembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 For the present invention Figure 1A magnified schematic diagram of the structure in the middle.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of part of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the grabbing component of the present invention.

[0022] Figure 5 This is a structural schematic diagram of the grabbing component of the present invention from another perspective.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the locking screw assembly of the present invention.

[0024] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point B in the middle.

[0025] Figure 8 This is a schematic diagram of the positioning component structure of the present invention.

[0026] In the figure: 1. Base; 2. Grabbing assembly; 21. Moving frame; 22. Guide rail; 23. First mounting frame; 24. First cylinder; 26. First storage bin; 27. Second cylinder; 28. Vacuum suction cup; 3. Locking screw assembly; 31. Bracket; 32. Second storage bin; 33. Moving seat; 34. Third cylinder; 35. Mounting box; 36. Locking screw head; 37. DC motor; 4. Positioning assembly; 41. Positioning plate; 42. Mounting sleeve; 43. Servo motor; 44. Second mounting frame; 45. Fourth cylinder; 46. Slider; 47. Screw; 48. Guide shell; 5. Support column; 6. Placement seat; 7. Support plate; 8. Stepper motor. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example: Figure 1-8 As shown, the present invention provides an automatic grasping, assembling and locking device for hinges, comprising a base 1, the upper surface of the base 1 being fixedly connected to a support column 5, the interior of the support column 5 being fixedly installed with a stepper motor 8, the support column 5 being a hollow tubular structure filled with damping material to reduce the vibration transmission of the stepper motor 8 during operation, the output end of the stepper motor 8 being fixedly connected to a support plate 7, the rotation angle being precisely controlled by the stepper motor 8 so that the placement seat 6 passes through the grasping assembly 2 and the locking screw assembly 3 in sequence, thereby realizing multi-station parallel operation.

[0029] The upper surface of the support plate 7 is connected to a placement seat 6 in a circular array. The placement seat 6 is convenient for placing the tool box that needs to be assembled. At the same time, the interior of the placement seat 6 is provided with an automatic fixing structure to ensure the stability of the placement of the work box. A positioning component 4 is provided on one side of the placement seat 6. The positioning component 4 serves to facilitate the fixation of the hinge. The upper surface of the base 1 is respectively provided with a grasping component 2 and a locking screw component 3. The grasping component 2 absorbs the hinge through negative pressure, which avoids the problem of uneven contact force compared to mechanical clamping. The locking screw component 3 meets the continuous operation requirements.

[0030] The grasping assembly 2 includes a guide rail 22, which is fixedly mounted on the upper surface of the base 1. A first cylinder 24 is fixedly mounted on one side of the guide rail 22. Through the cooperation between the guide rail 22 and the first cylinder 24, a stable linear motion path is provided for the movable frame 21. A first mounting frame 23 used in conjunction with the first cylinder 24 is fixedly mounted on one side of the guide rail 22. The first cylinder 24 is fixedly mounted on the upper surface of the first mounting frame 23. The first mounting frame 23 ensures that the first cylinder 24 is firmly installed. The output end of the first cylinder 24 is fixedly connected to the movable frame 21. The first cylinder 24 serves as a power source to drive the movable frame 21 to reciprocate along the guide rail 22, thereby realizing the position switching of the vacuum suction cup 28 between the first storage bin 26 and the placement seat 6, thereby improving the grasping efficiency.

[0031] A second cylinder 27 is fixedly installed on the upper surface of the movable frame 21, and a vacuum suction cup 28 is fixedly connected to the output end of the second cylinder 27. The vacuum suction cup 28 adopts a multi-stage vacuum generator, model VP10-06, which can automatically adjust the suction force according to the weight of the hinge. The adsorption surface is designed with a silicone corrugated pad, which can adapt to hinges with different surface curvatures, and the vacuum suction cup 28 is arranged above the placement seat 6. The second cylinder 27 controls the lifting and lowering of the vacuum suction cup 28, so that it can accurately adsorb materials and place them on the placement seat 6, realizing precise control in the vertical direction and adapting to operation requirements at different heights. At the same time, when the hinge is placed on the toolbox, the external automatic correction structure will correct the position of the hinge to ensure the accuracy of the hinge placement position. The existing technology of the correction structure is very mature, so I will not go into details here.

[0032] The upper surface of the base 1 is fixedly connected to a first material storage bin 26 used in conjunction with the vacuum suction cup 28. The first material storage bin 26 serves as a material storage unit. The hinges to be assembled can be pre-expanded and placed in the first material storage bin 26 for storage. It works in conjunction with the vacuum suction cup 28 to ensure the continuity of material supply and improve the efficiency of automated production.

[0033] The locking screw assembly 3 includes a bracket 31, which is fixedly mounted on the upper surface of the base 1. The internal pneumatic sliding connection of the bracket 31 is connected to a movable seat 33. The pneumatic drive mode enables the movable seat 33 to move quickly and smoothly in the horizontal direction, thereby improving the flexibility of the locking screw operation. A third cylinder 34 is fixedly mounted on the interior of the movable seat 33, and the output end of the third cylinder 34 is fixedly connected to the installation box 35. The third cylinder 34 controls the vertical movement of the installation box 35 so that the locking screw head 36 can accurately contact the screw, ensuring the pressure stability during the screw locking process and improving the reliability of the screw installation. A DC motor 37 is fixedly mounted on the internal rectangular array of the installation box 35. The output end of the DC motor 37 passes through the inner cavity of the installation box 35 and is fixedly connected to the locking screw head 36. The locking screw head 36 It uses NdFeB strong magnetic material with an adsorption force of ≥60N. It has a built-in torque sensor that can monitor the tightening force of the screw in real time. The head is designed with an anti-drop slot to prevent the screws from falling during the transfer process. The DC motor 37 and the screw locking head 36 arranged in a rectangular array can operate multiple screws at the same time, greatly improving the efficiency of screw locking and making it suitable for mass production.

[0034] A second material storage bin 32 for use with a locking screw head 36 is fixedly installed on one side of the bracket 31. The second material storage bin 32 provides a supply of screws. The locking screw head 36 is a magnetic head. The magnetic locking screw head 36 can reliably absorb the screws to prevent the screws from falling, thereby improving the success rate of screw grabbing and operational safety, and significantly improving the assembly efficiency of the toolbox to meet efficient production needs.

[0035] The positioning assembly 4 includes a guide shell 48, which is fixedly mounted on one side of the placement seat 6. A servo motor 43 is fixedly mounted on one side of the guide shell 48. A second mounting bracket 44 used in conjunction with the servo motor 43 is fixedly mounted on one side of the guide shell 48. The servo motor 43 is fixedly mounted on the upper surface of the second mounting bracket 44. The servo motor 43 is stably mounted through the second mounting bracket 44, ensuring the reliability of power transmission and improving the movement accuracy of the positioning assembly 4.

[0036] The output end of the servo motor 43 passes through one side of the guide housing 48 and is fixedly connected to a screw rod 47. The servo motor 43 drives the screw rod 47 to rotate. The outer surface of the screw rod 47 is threadedly sleeved with a slider 46. The outer surface of the slider 46 is slidably connected to the inner cavity of the guide housing 48, converting the rotational motion into the linear motion of the slider 46, realizing the precise horizontal displacement of the positioning plate 41 and improving the positioning accuracy. The end of the screw rod 47 facing away from the output end of the servo motor 43 is rotatably connected to the inner cavity of the guide housing 48 to ensure the smooth rotation of the screw rod 47. One side of the slider 46 is fixedly connected to a mounting sleeve 42. The movement of the slider 46 drives the installation sleeve 42 to move. The fourth cylinder 45 is fixedly installed inside the installation sleeve 42, and the output end of the fourth cylinder 45 is fixedly connected to the positioning plate 41. The fourth cylinder 45 is connected to the slider 46 through the installation sleeve 42 to control the vertical movement of the positioning plate 41, so that it can accurately press the hinge, thereby improving the stability of the hinge positioning. The positioning plate 41 is a rubber anti-skid plate. The positioning plate 41 made of rubber provides good friction and buffering performance. During the positioning process, it can prevent the hinge from sliding, ensure the accuracy of the installation position of each component, and ensure the accuracy and assembly effect of its assembly.

[0037] Working principle: Before the equipment is started, the hinge to be assembled is placed in the first storage bin 26, and the screws are placed in the second storage bin 32. During the assembly process, the toolbox to be assembled is continuously placed in the placement seat 6 and the assembled toolbox is taken out through the automated equipment. At the same time, the stepper motor 8, the first cylinder 24, the second cylinder 27, the third cylinder 34, the fourth cylinder 45 and the servo motor 43 are all in the initial standby state.

[0038] When the hinge is grasped, the stepping motor 8 is started to drive the support plate 7 to rotate, so that one of the placement seats 6 rotates to the corresponding position below the grasping component 2 and then stops.

[0039] Then, the first cylinder 24 drives the movable frame 21 to slide along the guide rail 22 to above the first storage bin 26 under the stable support of the first mounting frame 23 .

[0040] Next, the second air cylinder 27 pushes the vacuum cup 28 downward, and the vacuum cup 28 generates suction to absorb the hinge.

[0041] Subsequently, the second cylinder 27 rises, and the first cylinder 24 moves the movable frame 21 together with the adsorbed hinge back to the top of the placement seat 6. The second cylinder 27 descends, releasing the vacuum, and places the hinge on the placement seat 6. The position of the hinge is then automatically corrected through the external correction structure to ensure the stability of the installed hinge.

[0042] Then the hinge is positioned, and the servo motor 43 corresponding to the placement seat 6 in the positioning component 4 is started. After the servo motor 43 is started, it drives the screw rod 47 to rotate, and the slider 46 threaded on the screw rod 47 slides along the inner cavity of the guide shell 48, and drives the fourth cylinder 45 and the positioning plate 41 to approach the hinge through the mounting sleeve 42.

[0043] When the positioning plate 41 approaches the hinge, the fourth cylinder 45 extends to push the positioning plate 41 made of rubber anti-slip material to press the hinge, and use its good friction to prevent the hinge from shifting during the subsequent screw tightening process.

[0044] After completing the positioning, the stepper motor 8 continues to rotate to send the positioned hinge to the screw locking assembly 3 station.

[0045] The pneumatic system in the bracket 31 of the screw locking assembly 3 drives the movable seat 33 to slide above the second storage bin 32, and the third cylinder 34 drives the installation box 35 to descend, so that the magnetic screw locking head 36 absorbs the screw.

[0046] Subsequently, the movable base 33 moves to a corresponding position above the placement base 6, and the third cylinder 34 descends to align the screw with the hinge mounting hole.

[0047] At this time, the DC motors 37 arranged in a rectangular array in the installation box 35 drive the locking screw heads 36 to rotate, and simultaneously tighten the multiple screws to complete the assembly and locking operation of the hinge.

[0048] After the screws are tightened, the third cylinder 34 drives the installation box 35 to rise and reset, and then the stepper motor 8 rotates again to send the assembled hinge to the unloading station.

[0049] At the same time, the next placement seat 6 containing the tool box to be assembled is moved to the bottom of the grabbing assembly 2, and a new round of grabbing, positioning, and locking cycle is started to realize continuous automated production of hinges.

[0050] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A hinge automatic grasping, assembling and locking device, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a support column (5), a stepper motor (8) is fixedly installed inside the support column (5), an output end of the stepper motor (8) is fixedly connected to a support plate (7), a placement seat (6) is connected to the upper surface of the support plate (7) in a circular array, a positioning component (4) is provided on one side of the placement seat (6), and a grabbing component (2) and a locking screw component (3) are respectively provided on the upper surface of the base (1).

2. The hinge automatic grasping, assembling and locking device according to claim 1, characterized in that: The gripping assembly (2) includes a guide rail (22), the guide rail (22) is fixedly mounted on the upper surface of the base (1), a first cylinder (24) is fixedly mounted on one side of the guide rail (22), an output end of the first cylinder (24) is fixedly connected to a movable frame (21), and a second cylinder (27) is fixedly mounted on the upper surface of the movable frame (21), an output end of the second cylinder (27) is fixedly connected to a vacuum suction cup (28), and the vacuum suction cup (28) is arranged above the placement seat (6).

3. The hinge automatic grasping, assembling and locking device according to claim 1, characterized in that: The locking screw assembly (3) includes a bracket (31), the bracket (31) is fixedly mounted on the upper surface of the base (1), the bracket (31) is pneumatically slidably connected to a movable seat (33) inside, a third cylinder (34) is fixedly mounted inside the movable seat (33), and the output end of the third cylinder (34) is fixedly connected to a mounting box (35), a DC motor (37) is fixedly mounted in a rectangular array inside the mounting box (35), and the output end of the DC motor (37) passes through the inner cavity of the mounting box (35) and is fixedly connected to a locking screw head (36).

4. The hinge automatic grasping, assembling and locking device according to claim 1, characterized in that: The positioning assembly (4) includes a guide shell (48), the guide shell (48) is fixedly mounted on one side of the placement seat (6), a servo motor (43) is fixedly mounted on one side of the guide shell (48), and the output end of the servo motor (43) passes through one side of the guide shell (48) and is fixedly connected to a screw rod (47), a slider (46) is provided on the outer surface of the screw rod (47), one side of the slider (46) is fixedly connected to a mounting sleeve (42), a fourth cylinder (45) is fixedly mounted inside the mounting sleeve (42), and the output end of the fourth cylinder (45) is fixedly connected to a positioning plate (41).

5. The hinge automatic grasping, assembling and locking device according to claim 2, characterized in that: A first material storage bin (26) used in conjunction with a vacuum suction cup (28) is fixedly connected to the upper surface of the base (1).

6. The hinge automatic grasping, assembling and locking device according to claim 2, characterized in that: A first mounting frame (23) used in conjunction with a first cylinder (24) is fixedly mounted on one side of the guide rail (22), and the first cylinder (24) is fixedly mounted on the upper surface of the first mounting frame (23).

7. The hinge automatic grasping, assembling and locking device according to claim 3, characterized in that: A second material storage bin (32) for use with a thread locking head (36) is fixedly mounted on one side of the bracket (31), and the thread locking head (36) is a magnetic head.

8. The hinge automatic grasping, assembling and locking device according to claim 4, characterized in that: The outer surface of the slider (46) is slidably connected to the inner cavity of the guide shell (48), and the end of the screw rod (47) facing away from the output end of the servo motor (43) is rotatably connected to the inner cavity of the guide shell (48).

9. The hinge automatic grasping, assembling and locking device according to claim 4, characterized in that: The positioning plate (41) is a rubber anti-skid plate.

10. The hinge automatic grasping, assembling and locking device according to claim 4, characterized in that: A second mounting frame (44) used in conjunction with the servo motor (43) is fixedly mounted on one side of the guide housing (48), and the servo motor (43) is fixedly mounted on the upper surface of the second mounting frame (44).

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