Assembly line tray positioning mechanism

Abstract

The utility model relates to the technical field of workshop assembly lines, and discloses an assembly line tray positioning mechanism which comprises a conveying belt, a tray is arranged on one side of the upper portion of the conveying belt, a supporting plate is arranged on the other side of the lower portion of the conveying belt, an electric push rod is fixedly connected to the lower surface of the supporting plate, and a plurality of plugs are fixedly connected to the upper surface of the supporting plate. A friction reduction unit is arranged in the tray, an auxiliary unit is arranged on the lower surface of the tray, and a stability augmentation unit is arranged on one side of the tray. According to the assembly line tray positioning mechanism, through cooperation of the conveying belt, the tray, the supporting plate, the electric push rod, the plug and the friction reduction unit, threaded transmission is conducted on a threaded cylinder, the flitch plate is limited through a vertical rod, the flitch plate can move upwards, a gap is generated between an anti-skid pad and the conveying belt, and at the moment, static friction force cannot be generated between the running conveying belt and the tray; abrasion to the conveying belt can be greatly reduced, and the purposes of reducing cost and increasing efficiency can be achieved for enterprises.

Description

Technical Field

[0001] The utility model relates to the technical field of workshop assembly lines, in particular to an assembly line pallet positioning mechanism. Background Art

[0002] The shift actuator is a key component in automatic transmissions (such as automatic transmissions, continuous transmissions, and dynamic transmissions). It is responsible for precisely executing shifts according to control system instructions, ensuring smooth and efficient power transmission. The shift actuator is the "muscle" of the automatic transmission, and its performance directly impacts the driving experience and transmission life. With technological advancements, future shift actuators will become more efficient and intelligent, providing more reliable support for automotive powertrains.

[0003] The shift actuator needs to complete multiple necessary procedures during the installation process. At this stage, the degree of automation in enterprises is relatively high, and the step-by-step installation of the shift actuator is basically completed on the assembly line. Since a single assembly line will carry out multiple procedures, the conveyor belt in the assembly line will continue to run. Before the pallet on which the workpiece is stacked is lifted and positioned, the pallet will be stopped for a period of time. During this process, the lower surface of the pallet and the conveyor belt in operation are in a static friction state, that is, the friction force between the pallet and the conveyor belt is large, which leads to accelerated wear rate of the conveyor belt, which is not conducive to the company's goal of reducing costs and increasing efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a pallet positioning mechanism for an assembly line. Before the pallet is stopped and lifted, the pallet will not generate static friction with the surface of the conveyor belt, which can greatly reduce the wear on the conveyor belt, helping the enterprise to achieve the goal of reducing costs and increasing efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembly line pallet positioning mechanism, comprising: a conveyor belt, a pallet is provided on one side above the conveyor belt, a distance sensor is fixedly connected to the center of one side surface of the pallet, a support plate is provided on the other side below the conveyor belt, an electric push rod is fixedly connected to the lower surface of the support plate, a plurality of plugs are fixedly connected to the upper surface of the support plate, a friction reduction unit is provided inside the pallet, an auxiliary unit is provided on the lower surface of the pallet, and a stabilization unit is provided on one side of the pallet.

[0006] Preferably, the friction reduction unit includes: a box body, the box body is fixedly connected to the upper interior of the pallet, the bottom end of the box body is rotatably connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a threaded barrel, the bottom end of the threaded barrel is fixedly connected to a pasting plate, the four corners of the lower surface of the pallet are fixedly connected to rollers, the bottom ends of the rollers are in contact with the conveyor belt, and the upper surface of the pasting plate is fixedly connected to a pair of vertical rods, and the vertical rods pass through a part of the pallet.

[0007] Preferably, an anti-slip pad is fixedly connected to the lower surface of the sticker plate, and the anti-slip pad is attached to the conveyor belt.

[0008] Preferably, the tray is composed of a multi-layer structure, and the multi-layer structures are connected by screws.

[0009] Preferably, the auxiliary unit includes: a pair of vertical cylinders, the pair of vertical cylinders are respectively sleeved on the outer sides of a pair of vertical rods, the vertical cylinders are fixedly connected to the tray, and a plurality of balls are slidably clamped on the inner walls of the vertical cylinders, and the balls are attached to the vertical rods.

[0010] Preferably, the stability-enhancing unit includes: two pairs of horizontal cylinders, the two pairs of horizontal cylinders are both attached to one side surface of the tray, a ring is fixedly connected to the end of the horizontal cylinder away from the tray, a magnetic attraction ring is fixedly connected to the surface of the ring away from the horizontal cylinder, a bolt is inserted into one side surface of the ring, and one side of the bolt penetrates through the ring and the horizontal cylinder and is threadedly connected to the tray.

[0011] Preferably, the distance between one side of the magnetic attraction ring and the tray is 5 mm - 10 mm greater than the distance between one side of the distance sensor and the tray.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: This pipeline tray positioning mechanism has the following advantages compared with the traditional technology:

[0013] Through the cooperation between the conveyor belt, the tray, the sticker plate, the electric push rod, the plug and the friction reduction unit, first place the shift actuator to be installed on the tray, and the conveyor belt runs, which can drive the tray and the shift actuator above it in the direction of the sticker plate (the direction of the installation station). During this process, the distance sensor can monitor the distance value between the tray and the vertical plate. When the distance value between them is less than the threshold value initially set by the distance sensor, the distance sensor can send a signal to the control module inside the box body. After receiving the signal, the control module drives the motor installed inside the box body to run, making the threaded rod rotate, and then performing threaded transmission on the threaded barrel. With the limit of the vertical rod on the sticker plate, the sticker plate can move upward, and a gap is generated between the anti-slip pad and the conveyor belt. At this time, there will be no static friction between the running conveyor belt and the tray, which can greatly reduce the wear of the conveyor belt and is conducive to the enterprise achieving the goal of cost reduction and efficiency improvement.

[0014] Through the cooperation between the conveyor belt, the tray, the sticker plate, the electric push rod, the plug, the friction reduction unit and the auxiliary unit, during the up and down movement of the sticker plate, since the balls on the inner wall of the vertical cylinder can roll, the frictional resistance between the vertical cylinder and the vertical rod can be greatly reduced, the operating burden of the motor inside the box body can be reduced, and the stability during the displacement of the sticker plate can be improved to a certain extent.

[0015] Through the cooperation between the conveyor belt, pallet, support plate, electric push rod, plug, friction reduction unit and stabilization unit, when the plate moves upward to separate the anti-slip pad from the conveyor belt, the pallet will continue to move toward the vertical plate due to inertia, and the magnetic ring will generate an attractive force with the surface of the vertical plate. Under the influence of this attractive force, the pallet will be in a stable state when it is stopped, which is convenient for the subsequent precise positioning of the pallet by the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0017] Figure 1 It is a top view of the structure of the utility model;

[0018] Figure 2 This is a partial schematic diagram of the main view of the structure of the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 for Figure 2 Enlarged view of point C in the middle.

[0022] In the figure: 1. Conveyor belt, 2. Pallet, 3. Support plate, 4. Electric push rod, 5. Plug, 6. Box body, 7. Distance sensor, 8. Threaded rod, 9. Threaded cylinder, 10. Sticker plate, 11. Anti-slip pad, 12. Roller, 13. Vertical pole, 14. Vertical cylinder, 15. Ball bearing, 16. Horizontal cylinder, 17. Ring, 18. Magnetic ring, 19. Bolt, 20. Vertical plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0024] See also Figures 1-5, the present utility model provides a technical solution: a positioning mechanism for a conveyor belt tray, including: a conveyor belt 1, with a tray 2 provided on one side above the conveyor belt 1. A distance sensor 7 is fixedly connected to the center of one side surface of the tray 2. A support plate 3 is provided on the other side below the conveyor belt 1. An electric push rod 4 is fixedly connected to the lower surface of the support plate 3. A plurality of plugs 5 are fixedly connected to the upper surface of the support plate 3. A friction reduction unit is provided inside the tray 2, an auxiliary unit is provided on the lower surface of the tray 2, and a stability enhancement unit is provided on one side of the tray 2.

[0025] In the specific implementation process, it is particularly worth noting that the conveyor belt 1 is the conveyor belt on the assembly line for installing automotive shift actuators. The assembly line conveyor belt 1 is a key device widely used in industrial production assembly lines. Through continuous or intermittent movement, it transports materials, components, or finished products from one station to another, realizing the automation and high efficiency of the production process. It is an indispensable important part of modern industrial production. A limit component for positioning and installing the main frame of the shift actuator is installed on the upper surface of the tray 2, which can stably install the main frame of the shift actuator on the upper surface of the tray 2. The electric push rod 4 is fixedly connected to the workshop base surface through a frame. The output shaft of the electric push rod 4 is fixedly connected to the support plate 3. The power cord of the electric push rod 4 is connected to an external power supply device, which can provide the required electric energy for its operation. A socket for the plug 5 to be inserted is provided on the lower surface of the tray 2.

[0026] Furthermore, the friction reduction unit includes: a box body 6, which is fixedly connected to the upper part inside the tray 2. A threaded rod 8 is rotatably connected to the bottom end of the box body 6. A threaded barrel 9 is threadedly connected to the outer wall of the threaded rod 8. A pasting plate 10 is fixedly connected to the bottom end of the threaded barrel 9. Four corners of the lower surface of the tray 2 are fixedly connected with rollers 12, and the bottom ends of the rollers 12 are in contact with the conveyor belt 1. A pair of vertical rods 13 are fixedly connected to the upper surface of the pasting plate 10, and a part of the vertical rods 13 penetrates through the tray 2.

[0027] In the specific implementation process, it is particularly worth noting that the difficult point in understanding this application is that the distance sensor detects the distance between the target object and itself, compares it with the initially set distance value, and then controls the forward and reverse rotation and the number of rotation turns of the output shaft of the servo motor (installed inside the box body 6 and the output shaft is fixedly connected to the threaded rod 8). For the convenience of understanding, the principle and implementation steps are briefly described as follows: The distance sensor 7 (such as an ultrasonic sensor, an infrared sensor, a laser sensor, etc., this application does not limit the model and type of the distance sensor) continuously detects the distance between the target object and the sensor, converts the distance value into an electrical signal and outputs it, compares the detected distance value with the initially set distance value. If the detected distance is less than the set distance, the corresponding control logic is triggered; if the detected distance is greater than the set distance, another control logic is triggered. According to the comparison result, a control signal is sent to the servo motor through a controller (such as a PLC, a single-chip microcomputer, etc.) to control the forward and reverse rotation and the number of rotation turns of the motor. Connect the distance sensor 7 to the controller inside the box body 6 to ensure that the sensor can work properly and transmit the distance value to the controller. Connect the servo motor to the controller and configure the motor driver to ensure that the controller can control the forward and reverse rotation and the number of rotation turns of the motor. Set an initial distance value in the controller, which is used as the standard for judging the position of the target object. Set parameters such as the rotation direction, rotation speed, and the number of rotation turns of the servo motor, and these parameters can be adjusted according to actual needs. Write a program in the controller to regularly read the distance value detected by the distance sensor, compare the read distance value with the initially set distance value. If the detected distance is less than the set distance, execute the control logic for the forward rotation of the motor; if the detected distance is greater than the set distance, execute the control logic for the reverse rotation of the motor. According to the comparison result, send a control signal to the servo motor to control the forward and reverse rotation and the number of rotation turns of the motor. For example, when the detected distance is less than the set distance, control the motor to rotate forward by a certain number of turns; when the detected distance is greater than the set distance, control the motor to rotate backward by a certain number of turns. In practical applications, debug the system to ensure that the distance sensor can accurately detect the distance value and the controller can correctly control the forward and reverse rotation and the number of rotation turns of the servo motor. Necessary structural components such as a servo motor, a controller, and a power supplyable battery component that can implement the above operations are installed inside the box body 6. The outer wall top of the threaded rod 8 is processed with an external thread, and the threaded rod 8 is rotationally connected to the box body 6 through a ball bearing. The roller 12 is composed of a wheel body and a U-shaped plate. The roller 12 is rotationally connected below the U-shaped plate through a round shaft. The U-shaped plate is fixedly connected to the tray 2, and the wheel body is in contact with the conveyor belt 1.

[0028] Furthermore, an anti-slip pad 11 is fixedly connected to the lower surface of the attaching plate 10, and the anti-slip pad 11 is in contact with the conveyor belt 1.

[0029] In the specific implementation process, it is particularly worth noting that the anti-slip mat 11 is made of rubber material. Due to the relatively high friction coefficient of the rubber material itself, a large frictional resistance can be generated between its molecular structure and the contact surface. When an object moves on the surface of the rubber mat, the rubber molecules and the unevenness on the microscopic contact surface bite and nest with each other, hindering the relative sliding of the object, just like gears meshing with each other, thereby increasing the frictional force and preventing the object from slipping, which can achieve the effect of increasing the anti-slip property of the lower surface of the attaching plate 10.

[0030] Furthermore, the tray 2 is composed of a multi-layer structure, and the multi-layer structures are connected by screws.

[0031] In the specific implementation process, it is particularly worth noting that the multi-layer structure is specifically two square plates arranged up and down. There is a square frame between the two square plates, and they are connected by screws, that is, the tray 2 is a detachable structure, which is convenient for installing structural parts inside during initial assembly.

[0032] Furthermore, the auxiliary unit includes: a pair of vertical cylinders 14. The pair of vertical cylinders 14 are respectively sleeved on the outer sides of a pair of vertical rods 13. The vertical cylinders 14 are fixedly connected to the tray 2. A plurality of balls 15 are slidably clamped on the inner walls of the vertical cylinders 14, and the balls 15 are in contact with the vertical rods 13.

[0033] In the specific implementation process, it is particularly worth noting that the balls 15 can roll, but cannot be separated from the vertical cylinders 14, which can reduce the frictional resistance between the vertical cylinders 14 and the vertical rods 13. During the up and down movement of the attaching plate 10, due to the balls 15 on the inner wall of the vertical cylinder 14 can roll, the frictional resistance between the vertical cylinders 14 and the vertical rods 13 can be greatly reduced, which can reduce the operating burden of the motor inside the box body 6 and can also improve the stability of the attaching plate 10 during displacement to a certain extent.

[0034] Furthermore, the stability enhancing unit includes: two pairs of horizontal cylinders 16. The two pairs of horizontal cylinders 16 are both attached to one side surface of the tray 2. A circular ring 17 is fixedly connected to the end of the horizontal cylinder 16 away from the tray 2. A magnetic attraction ring 18 is fixedly connected to the surface of the circular ring 17 away from the horizontal cylinder 16. A bolt 19 is inserted into one side surface of the circular ring 17, and one side of the bolt 19 penetrates through the circular ring 17 and the horizontal cylinder 16 and is threadedly connected to the tray 2.

[0035] In the specific implementation process, it is particularly worth noting that the magnetic attraction ring 18 is a magnet with a coating, and the vertical plate 20 is a metal iron with a coating. When the attaching plate 10 moves upward to separate the anti-slip mat 11 from the conveyor belt 1, the tray 2 will continue to move in the direction of the vertical plate 20 due to inertia. The magnetic attraction ring 18 will generate an attracting force with the surface of the vertical plate 20. Under the influence of this attracting force, the tray 2 will be in a stable state when it is stopped.

[0036] Furthermore, the distance between one side of the magnetic ring 18 and the tray 2 is 5 mm to 10 mm greater than the distance between one side of the distance sensor 7 and the tray 2 .

[0037] During the specific implementation, it is worth noting that when the magnetic ring 18 is attracted to the surface of the vertical plate 20 , it can prevent the distance sensor 7 from colliding with the vertical plate 20 , thereby facilitating the long-term use of the distance sensor 7 .

[0038] Working principle:

[0039] Friction reduction operation on conveyor belts:

[0040] First, place the shift actuator to be installed on the pallet 2, and the conveyor belt 1 is running, which can transmit the pallet 2 and the shift actuator above it toward the support plate 3 (the direction of the installation station). During this process, the distance sensor 7 can monitor the distance value between the pallet 2 and the vertical plate 20. When the distance value between them is less than the threshold value initially set by the distance sensor 7, the distance sensor 7 can send a signal to the control module inside the box body 6. After receiving the signal, the control module drives the motor installed inside the box body 6 to operate, so that the threaded rod 8 rotates, and then the threaded barrel 9 is threadedly transmitted. In conjunction with the limit of the plate 10 by the vertical rod 13, the plate 10 can be moved upward, and a gap is generated between the anti-slip pad 11 and the conveyor belt 1. At this time, no static friction is generated between the running conveyor belt 1 and the pallet 2, which can greatly reduce the wear on the conveyor belt.

[0041] The pallet is stopped and the operation is stable:

[0042] When the plate 10 moves upward to separate the anti-slip pad 11 from the conveyor belt 1, the tray 2 will continue to move toward the vertical plate 20 due to inertia, and the magnetic ring 18 will generate an attractive force with the surface of the vertical plate 20. Under the influence of this attractive force, the tray 2 will be in a stable state when it is intercepted.

[0043] Limiting operation of pallets:

[0044] After the tray 2 is stopped, the electric push rod 4 can move the pallet 3 upward, and the plug 5 is connected to the tray 2. The pallet 3 can lift the tray 2 and the shift actuator upward to achieve the limiting operation of the tray 2 and the shift actuator. At this time, the shift actuator above the tray 2 can be assembled.

[0045] Subsequent transmission operations for pallets:

[0046] After the shift actuator above the tray 2 is assembled, drive the electric push rod 4 to move the pallet 3 downward. The pallet 3 and the plug 5 are separated from the tray 2, and the vertical plate 20 moves below the conveyor belt 1. At this time, there is no detection object in front of the distance sensor 7 (the distance value between the distance sensor 7 and the detection object is much greater than the initial set threshold). The distance sensor 7 sends a signal to the control module inside the box body 6 again. After receiving the signal, the control module drives the motor installed inside the box body 6 to operate, causing the threaded rod 8 to rotate in the opposite direction, so that the anti-slip pad 11 on the lower surface of the attaching plate 10 fits the conveyor belt 1 in the operating state again, and the re-transmission of the tray 2 can be realized.

[0047] Another thing worth noting is that the suction force between the magnetic attraction ring 18 and the vertical plate 20 is much smaller than the gravity of the tray 2 itself. When the tray 2 moves, it will drive the magnetic attraction ring 18 to move together, and relative sliding occurs between the magnetic attraction ring 18 and the vertical plate 20. Due to the small suction force, the frictional resistance between the vertical plate 20 and the magnetic attraction ring 18 is also relatively small. This frictional resistance is not enough to overcome factors such as the gravity of the tray 2 itself. Therefore, the tray 2 will not be lifted.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Pipeline tray positioning mechanism, comprising: Conveyor belt (1), characterized in that: a tray (2) is provided on one side above the conveyor belt (1), a distance sensor (7) is fixedly connected to the center of one side surface of the tray (2), a support plate (3) is provided on the other side below the conveyor belt (1), an electric push rod (4) is fixedly connected to the lower surface of the support plate (3), a plurality of plugs (5) are fixedly connected to the upper surface of the support plate (3), a friction reduction unit is provided inside the tray (2), an auxiliary unit is provided on the lower surface of the tray (2), and a stability enhancement unit is provided on one side of the tray (2).

2. The pipeline tray positioning mechanism according to claim 1, characterized in that: The friction reduction unit includes: a box body (6), the box body (6) is fixedly connected to the upper part inside the tray (2), the bottom end of the box body (6) is rotatably connected to a threaded rod (8), a threaded cylinder (9) is threadedly connected to the outer wall of the threaded rod (8), a sticking plate (10) is fixedly connected to the bottom end of the threaded cylinder (9), rollers (12) are fixedly connected to the four corners of the lower surface of the tray (2), the bottom ends of the rollers (12) are in contact with the conveyor belt (1), a pair of vertical rods (13) are fixedly connected to the upper surface of the sticking plate (10), and a part of the vertical rods (13) penetrates through the tray (2).

3. The pipeline tray positioning mechanism according to claim 2, characterized in that: An anti-slip pad (11) is fixedly connected to the lower surface of the sticking plate (10), and the anti-slip pad (11) is in contact with the conveyor belt (1).

4. The pipeline tray positioning mechanism according to claim 1, wherein: The tray (2) is composed of multiple layers of structures, and the multiple layers of structures are connected by screws.

5. The pipeline tray positioning mechanism according to claim 1, characterized in that: The auxiliary unit includes: a pair of vertical cylinders (14), the pair of vertical cylinders (14) are respectively sleeved on the outer sides of a pair of vertical rods (13), the vertical cylinders (14) are fixedly connected to the tray (2), a plurality of balls (15) are slidably clamped on the inner walls of the vertical cylinders (14), and the balls (15) are in contact with the vertical rods (13).

6. The pipeline tray positioning mechanism according to claim 1, characterized in that: The stability enhancement unit includes: two pairs of horizontal cylinders (16), the two pairs of horizontal cylinders (16) are both attached to one side surface of the tray (2), a circular ring (17) is fixedly connected to the end of the horizontal cylinder (16) away from the tray (2), a magnetic attraction ring (18) is fixedly connected to the surface of the circular ring (17) away from the horizontal cylinder (16), a bolt (19) is inserted into one side surface of the circular ring (17), and one side of the bolt (19) penetrates through the circular ring (17) and the horizontal cylinder (16) and is threadedly connected to the tray (2).

7. The pipeline tray positioning mechanism according to claim 6, wherein: The distance between one side of the magnetic attraction ring (18) and the tray (2) is 5 mm - 10 mm greater than the distance between one side of the distance sensor (7) and the tray (2).

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