Gravity sliding device for nut loading of automatic battery stack production line

Abstract

The invention discloses a gravity sliding device for nut feeding of an automatic battery stack production line, which is characterized in that the gravity sliding device comprises a bottom bracket, an inclined plate is supported at the top end of the bottom bracket, and two sets of symmetrically distributed sliding feeding mechanisms are arranged on the inclined plate; the sliding feeding mechanism comprises a sliding way distributed in the length direction of the inclined plate, a material receiving disc is arranged at the top end of the sliding way, an outlet of the material receiving disc is communicated with an inlet of the sliding way, a horn mouth is formed in the connecting position of the material receiving disc and the sliding way, and a material receiving mechanism is arranged at the outlet end of the sliding way. The material receiving mechanism comprises a first air cylinder and a second air cylinder, a first baffle is arranged at the working end of the first air cylinder, a second baffle is arranged at the working end of the second air cylinder, the moving direction of the first baffle and the moving direction of the second baffle are perpendicular to the axial direction of the sliding way, and the second air cylinder is located in the discharging direction of the first air cylinder.

Description

Technical Field

[0001] The invention relates to the field of automated production, and in particular to a gravity sliding device for nut loading on an automatic production line for a battery stack. Background Art

[0002] At present, in order to save costs, save manpower and improve efficiency, some battery factories use automatic production lines in the battery production lines of new energy vehicles. In automatic production lines, robots are often required to take nuts and place them on bolts to achieve assembly, which requires automatic loading devices for nuts.

[0003] Traditional automatic nut loading devices include conveyor belt type, rack type and other types. However, a common problem with these loading devices is that it is difficult to ensure that the materials are transported to the loading position one by one, and it is difficult to accurately determine whether the materials are correctly located at the loading position.

[0004] Moreover, after the nut is delivered to the location, it is generally picked up directly by a tightening gun. The tightening gun will directly drive the nut to the bolt that needs to be screwed and tighten it. Since the nut is hexagonal and the muzzle of the tightening gun is also hexagonal, when the tightening gun contacts the nut, it is often necessary to rotate the tightening gun a certain angle before it can be engaged on the nut. Since the traditional nut automatic loading device is not designed for this part, it will delay the time for the tightening gun to pick up the nut, extend the production cycle, and affect work efficiency.

[0005] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0006] The present invention aims to solve the above-mentioned deficiencies in the prior art and proposes a gravity sliding device which has a simple structure, ingenious design, reasonable layout and can realize automatic loading operation of nuts.

[0007] The technical solution of the present invention is: a gravity sliding device for nut loading on a battery stack automatic production line, characterized in that: the gravity sliding device comprises a bottom bracket 1, the top of the bottom bracket 1 supports an inclined plate 2, and two sets of symmetrically distributed sliding feeding mechanisms 3 are arranged on the inclined plate 2. The sliding feeding mechanism 3 includes a slideway 4 distributed along the length direction of the inclined plate 2, and a receiving tray 5 is arranged at the top of the slideway 4. The outlet of the receiving tray 5 is connected to the inlet of the slideway 4, and the connection between the receiving tray 5 and the slideway 4 is a bell mouth. The outlet end of the slide 4 is provided with a material receiving mechanism 6, which includes a first cylinder 7 and a second cylinder 8. The working end of the first cylinder 7 is provided with a first baffle, and the working end of the second cylinder 8 is provided with a second baffle. The movement directions of the first baffle and the second baffle are perpendicular to the axial direction of the slide 4, and the second cylinder 8 is located in the discharging direction of the first cylinder 7. The material receiving mechanism also includes a longitudinal cylinder 9 fixedly connected to the bottom bracket 1, the working end of the longitudinal cylinder 9 is connected to the lifting platform 10, a cylinder 11 is provided on the lifting platform 10, a core shaft is rotatably connected in the cylinder 11, a material receiving fixture 12 is provided on the top of the core shaft, the shape of the inner wall of the material receiving fixture 12 matches the shape of the nut, and an opening is also provided on the material receiving fixture 12, an arc groove 13 is provided on the outer wall of the cylinder 11, a connecting rod 14 is movably connected in the arc groove 13, one end of the connecting rod 14 is fixedly connected to the core shaft, and the other end is connected to the end of a reset spring 15, and the other end of the spring 15 is connected to the lifting platform 10. The inclined plate 2 is also provided with a first sensor 16, a second sensor 17 and a third sensor 18. The first sensor 16 corresponds to the discharge position between the first baffle and the second baffle on the slide 4, the second sensor 17 corresponds to the low position of the material receiving fixture 12, and the third sensor 18 corresponds to the high position of the material receiving fixture 12.

[0008] Compared with the prior art, the present invention has the following advantages: This type of gravity sliding device for nut loading in the automatic production line of battery stacks has a simple structure, ingenious design and reasonable layout. Aiming at the problems existing in the working process of the traditional automatic nut loading device, a special structure is designed. It uses an inclined plate as the main structure, so as to use gravity to realize the movement of the nut, and the receiving fixture used to receive the nut can drive the nut to rise to the material taking position after receiving the nut, so as to ensure that the tightening gun can smoothly take the nut away. It allows the nuts to be transported to the receiving fixture one by one, and at the same time, the receiving fixture can also automatically perform adaptive fine-tuning according to the position of the tightening gun to ensure that the nut can quickly enter the muzzle of the tightening gun, thereby achieving the purpose of improving work efficiency. This gravity sliding device has a simple manufacturing process and low manufacturing cost. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0010] Figure 2 yes Figure 1 Enlarged view of part A in .

[0011] Figure 3 It is a front view of an embodiment of the present invention. DETAILED DESCRIPTION

[0012] The specific implementation of the present invention will be described below with reference to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 As shown: A gravity sliding device for nut loading on an automatic production line of a battery stack, comprising a bottom bracket 1, the top of which supports an inclined plate 2, on which two sets of symmetrically distributed sliding loading mechanisms 3 are arranged. The sliding feeding mechanism 3 includes a slideway 4 distributed along the length direction of the inclined plate 2, and a receiving tray 5 is arranged at the top of the slideway 4. The outlet of the receiving tray 5 is connected to the inlet of the slideway 4, and the connection between the receiving tray 5 and the slideway 4 is a bell mouth. The outlet end of the slide 4 is provided with a material receiving mechanism 6, which includes a first cylinder 7 and a second cylinder 8. The working end of the first cylinder 7 is provided with a first baffle, and the working end of the second cylinder 8 is provided with a second baffle. The movement directions of the first baffle and the second baffle are perpendicular to the axial direction of the slide 4, and the second cylinder 8 is located in the discharging direction of the first cylinder 7. The material receiving mechanism also includes a longitudinal cylinder 9 fixedly connected to the bottom bracket 1, the working end of the longitudinal cylinder 9 is connected to the lifting platform 10, a cylinder 11 is provided on the lifting platform 10, a core shaft is rotatably connected in the cylinder 11, a material receiving fixture 12 is provided on the top of the core shaft, the shape of the inner wall of the material receiving fixture 12 matches the shape of the nut, and an opening is also provided on the material receiving fixture 12, an arc groove 13 is provided on the outer wall of the cylinder 11, a connecting rod 14 is movably connected in the arc groove 13, one end of the connecting rod 14 is fixedly connected to the core shaft, and the other end is connected to the end of a reset spring 15, and the other end of the spring 15 is connected to the lifting platform 10. The inclined plate 2 is also provided with a first sensor 16, a second sensor 17 and a third sensor 18. The first sensor 16 corresponds to the discharge position between the first baffle and the second baffle on the slide 4, the second sensor 17 corresponds to the low position of the material receiving fixture 12, and the third sensor 18 corresponds to the high position of the material receiving fixture 12.

[0013] The working process of the gravity sliding device for nut loading on the battery stack automatic production line according to the embodiment of the present invention is as follows: a plurality of nuts 19 are laid flat on the receiving tray 5. Since the receiving tray 5 is tilted as a whole, the nuts 19 slide along the tilted bottom plate toward the outlet of the receiving tray 5 and enter the slideway 4. The plurality of nuts 19 are arranged in sequence in the slideway 4 and slide downward to the outlet of the slideway 4. The first cylinder 7 and the second cylinder 8 arranged at the exit position of the slide 4 drive the baffle plate to extend alternately according to a predetermined program, so as to ensure that only one nut 19 slides out of the slide 4 at a time. When the second baffle plate blocks a nut 19, the first sensor 16 detects that there is material there, and sends a signal to the control system, which allows the program to run normally. The second cylinder 8 drives the second baffle plate to be recovered, and the nut 19 slides out of the slide 4 and enters the material receiving fixture 12. When the second sensor 17 detects that there is a nut 19 in the material receiving fixture 12 which is currently in a low position, the control system will send a signal to the longitudinal cylinder 9, and the longitudinal cylinder 9 will drive the lifting platform 10 and all the mechanisms thereon to rise. When the lifting platform 10 rises to a high position, the third sensor 18 will detect the nut 19, and the control system will know that the current nut 19 is in the upper position, and will send a signal to the robotic arm, and the robotic arm will drive the tightening gun to move to the upper position, and the muzzle of the tightening gun will be pressed on the top surface of the nut 19. In theory, the position of the tightening gun is consistent with the current nut 19. 9 are matched, so in most cases, the nut 19 directly enters the muzzle of the tightening gun, and the tightening gun can remove the nut 19; in a few cases, there is a deviation in the placement angle of the nut 19, but the deviation is small, so as long as the tightening gun applies a certain pressure downward, the nut 19 will automatically rotate with the angle of the muzzle of the tightening gun, and the mandrel will make an adaptive rotation at this time, so that the nut 19 can smoothly enter the muzzle of the tightening gun; when the mandrel rotates, it drives the connecting rod 14 connected thereto to swing, and the reset spring 15 is stretched or compressed; After the nut 19 is taken away, the core shaft rotates in the opposite direction and returns to the initial position under the action of the reset spring 15. When the detection result of the third sensor 18 is empty, the longitudinal cylinder 9 drives the lifting platform 10 to descend, and the material receiving fixture 12 returns to the low material receiving position, and after receiving the next nut 19, the above action is repeated, and this process is repeated to realize the operation of loading the nuts 19 one by one.

Claims

1. A gravity sliding device for nut loading on an automatic production line of a battery stack, characterized in that: The gravity sliding device comprises a bottom bracket (1), the top end of the bottom bracket (1) supports an inclined plate (2), and two sets of symmetrically distributed sliding feeding mechanisms (3) are arranged on the inclined plate (2). The sliding feeding mechanism (3) comprises a slideway (4) distributed along the length direction of the inclined plate (2), a receiving tray (5) is arranged at the top of the slideway (4), an outlet of the receiving tray (5) is connected to an inlet of the slideway (4), and the connection between the receiving tray (5) and the slideway (4) is a bell mouth. The outlet end of the slideway (4) is provided with a material receiving mechanism (6), the material receiving mechanism comprising a first cylinder (7) and a second cylinder (8), a first baffle being provided at the working end of the first cylinder (7), and a second baffle being provided at the working end of the second cylinder (8), the movement directions of the first baffle and the second baffle being perpendicular to the axial direction of the slideway (4), and the second cylinder (8) being located in the material discharging direction of the first cylinder (7). The material receiving mechanism further comprises a longitudinal cylinder (9) fixedly connected to the bottom bracket (1), the working end of the longitudinal cylinder (9) being connected to the lifting platform (10), the lifting platform (10) being provided with a cylinder (11), a core shaft being rotatably connected in the cylinder (11), a material receiving fixture (12) being provided at the top end of the core shaft, the shape of the inner wall of the material receiving fixture (12) matching the shape of the nut, and an opening being provided on the material receiving fixture (12), an arc groove (13) being provided on the outer wall of the cylinder (11), a connecting rod (14) being movably connected in the arc groove (13), one end of the connecting rod (14) being fixedly connected to the core shaft, and the other end being connected to the end of a return spring (15), and the other end of the spring (15) being connected to the lifting platform (10), The inclined plate (2) is also provided with a first sensor (16), a second sensor (17) and a third sensor (18); the first sensor (16) corresponds to a material discharge position between a first baffle plate and a second baffle plate on the slideway (4); the second sensor (17) corresponds to a low position of a material receiving fixture (12); and the third sensor (18) corresponds to a high position of the material receiving fixture (12).

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