Workpiece feeding device for welding assembly line

Abstract

The utility model relates to the technical field of automobile welding assembly line part transfer, and discloses a welding assembly line part feeding device which comprises an obliquely-arranged feeding sliding rail, an in-place detection part discharging mechanism, a fixing mechanism and a supporting frame. By arranging the in-place detecting and discharging mechanism, buffering of plates can be achieved in the gravity sliding process, manpower is liberated, the production takt of a line body can be improved, and the labor cost and the production cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts transfer in automobile welding lines, in particular to a parts feeding device for a welding line. Background Art

[0002] In the automotive manufacturing industry, the body-in-white (BIW) welding line is a critical step in the production process. With the diversification of the automotive market, automakers are placing increasingly higher demands on production line flexibility. However, most OEMs currently still manually load trunk bracket panels directly onto welding fixtures. This method is labor-intensive and inefficient, with insufficient stability and a high error rate in manual operation, failing to meet the demands of modern automotive manufacturing for efficient production.

[0003] Although some OEMs also try to use cylinders or motors to provide power to move the trunk bracket panels, this method has problems such as a small number of panels that can be cached and high production costs. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a welding line feeding device, which can smoothly move the suitcase bracket to the required position by gravity sliding, thereby improving the production rhythm of the production line, freeing up manpower and reducing labor costs, and realizing the caching of the suitcase bracket.

[0005] In order to achieve the above-mentioned object, the utility model provides a welding line feeding device for transporting a luggage box bracket to a grabbing position, comprising:

[0006] An inclined feeding slide rail, wherein the higher end of the feeding slide rail is provided with an inlet, and the lower end of the feeding slide rail is provided with an outlet;

[0007] An in-place detection lowering mechanism is provided near the discharge port, and comprises a first cylinder, a second cylinder, and stoppers provided on the first cylinder and the second cylinder. The first cylinder and the second cylinder are sequentially provided below the feeding slide rail along the length direction of the feeding slide rail, and the first cylinder and the second cylinder are connected to a first sensor and a second sensor, respectively.

[0008] a fixing mechanism, the fixing mechanism being movably disposed at a lower end of the feeding slide rail and being capable of switching between a grabbing position and the discharge port, for receiving and fixing the luggage box bracket; and

[0009] A support frame is provided below the feed slide rail and is used to lift the feed slide rail to a height suitable for the welding line.

[0010] Optionally, the feeding slide rail includes a pair of parallel sliding rods, and both ends of the luggage box bracket are respectively overlapped on the sliding rods.

[0011] Optionally, an anti-stack guide rod extending along the length direction of the sliding rod is provided between the pair of sliding rods.

[0012] Optionally, the feed port is provided with an error-proofing feature.

[0013] Optionally, an angle adjustment component is provided between the support frame and the higher end of the feeding slide rail, and the angle adjustment component is configured to be able to adjust and fix the inclination angle of the feeding slide rail.

[0014] Optionally, the support frame is configured as a three-dimensional trapezoidal frame, the angle adjustment assembly is provided at one end of the lower base of the three-dimensional trapezoidal frame, and a rotating shaft is provided at one end of the upper base of the three-dimensional trapezoidal frame.

[0015] Optionally, a vibration mechanism is also provided on the feeding slide rail.

[0016] Optionally, a leveling mechanism is provided at one end of the support frame away from the feeding slide rail.

[0017] Optionally, the feed rail is further provided with a plurality of cross-shaped brackets spanning above the anti-stack guide rod for installing a protective cover.

[0018] Optionally, the fixing mechanism includes a fixing groove for fixing the luggage box bracket, a first fixed claw is provided on the side of the fixing groove away from the feeding slide rail, and a second claw that can be switched between an open and a closed state is provided on the side of the fixing groove close to the feeding slide rail.

[0019] The welding line feeding device provided by the utility model adopts an inclined feeding slide rail, utilizes the dead weight of the trunk bracket to slide to the fixing mechanism, and then the trunk bracket is moved to the welding fixture by the gripper. By setting a position detection unloading mechanism, the plate can be cached during the gravity sliding process, freeing up manpower, and can improve the production rhythm of the line, saving labor costs and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first-view structural diagram of a welding line feeding device disclosed in the utility model;

[0021] Figure 2 This is a second perspective structural diagram of a welding line feeding device disclosed in the utility model;

[0022] Figure 3 yes Figure 1A magnified schematic diagram of the structure at point B in the middle;

[0023] Figure 4 yes Figure 1 A schematic diagram of the structure at center A;

[0024] Figure 5 yes Figure 2 Enlarged schematic diagram of the structure at point C in the middle.

[0025] Description of Reference Numerals

[0026] 1. Feeding rail; 11. Feeding port; 111. Error-proofing feature; 12. Discharging port; 13. Slide rod; 14. X-shaped bracket; 2. Mechanism for detecting the unloading of parts in place; 21. First cylinder; 211. First sensor; 22. Second cylinder; 221. Second sensor; 23. Stopper; 3. Fixing mechanism; 31. Fixing groove; 32. First clamping claw; 33. Second clamping claw; 4. Support frame; 5. Anti-overlapping guide rod; 6. Angle adjustment assembly; 7. Rotating shaft; 8. Vibration mechanism; 9. Leveling mechanism. DETAILED DESCRIPTION

[0027] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0028] like Figures 1 to 3 As shown, the utility model provides a welding line feeding device for transporting a luggage box bracket to a grabbing position, comprising: a feeding slide rail 1 arranged obliquely, wherein a higher end of the feeding slide rail 1 is provided with a feeding port 11, and a lower end of the feeding slide rail 1 is provided with a discharging port 12; an in-place detection mechanism 2 for lowering the piece, wherein the in-place detection mechanism 2 is arranged at a position close to the discharging port 12, and the in-place detection mechanism 2 comprises a first cylinder 21, a second cylinder 22 and a stopper 23 arranged on the first cylinder 21 and the second cylinder 22, wherein the first cylinder 21 and the second cylinder 22 are provided with a stopper 23; The second cylinder 22 is sequentially arranged below the feeding slide rail 1 along the length direction of the feeding slide rail 1, and the first cylinder 21 and the second cylinder 22 are respectively connected to the first sensor 211 and the second sensor 221; the fixing mechanism 3, the fixing mechanism 3 is movably arranged at the lower end of the feeding slide rail 1, and can be switched between the grabbing position and the discharge port 12, for receiving and fixing the luggage box bracket; and the support frame 4, the support frame 4 is arranged below the feeding slide rail 1, for lifting the feeding slide rail 1 to a height suitable for the welding line.

[0029] The welding line feeding device of the present invention allows the luggage rack (or other materials) to slide down the slide rails under their own gravity, thus achieving automatic feeding. This simplifies the feeding process, reduces power requirements, and improves production efficiency. Furthermore, the provision of the inlet 11 and outlet 12 allows for smoother and more orderly material inflow and outflow.

[0030] To ensure smooth and stable sliding of the luggage rack, the feed rail 1 is made of wear-resistant, low-friction materials, such as stainless steel or a special alloy. The rail surface is polished to reduce friction and noise. Furthermore, the rail's inclination angle is precisely calculated to ensure the luggage rack slides smoothly under its own weight without causing loss of control due to excessive speed.

[0031] The lower mechanism for in-position detection is composed of two cylinders, two sensors and a stopper 23. The first cylinder 21 is controlled by the first sensor 211 and is located in a waiting position near the discharge port 12. The second cylinder 22 is controlled by the second sensor 221 and is located in an arrival position near the discharge port 12. When the bracket slides close to the discharge port 12, the first cylinder 21 and the second cylinder 22 are opened at the same time, and the stopper 23 rises under the action of the cylinder to prevent the luggage box bracket from sliding down. It can be understood that the stopper 23 can be any appropriate structure and any appropriate number, as long as it does not interfere with other components of the present invention.

[0032] The fixing mechanism 3 is movably mounted at the lower end of the feed rail 1 and can be switched between the grabbing position and the discharge port 12. The movement of the fixing mechanism 3 can be driven by a motor, a pneumatic cylinder, or manually. The fixing mechanism 3 of the present invention accurately receives the material sliding down the feed rail 1. It can be adapted to the shape and size of the luggage rack, ensuring that the luggage rack is stably fixed in the grabbing position, facilitating grabbing by a robot or other automated equipment for the next welding operation.

[0033] Preferably, a sensor is also provided on the fixing mechanism 3. After the fixing mechanism 3 is docked with the discharge port 12, the sensor on the fixing mechanism 3 gives a signal, the second cylinder 22 clamps, and the stopper 23 on the second cylinder 22 descends to ensure that the luggage compartment bracket at the point position slides down onto the fixing mechanism 3, and then the fixing mechanism 3 fixes the luggage compartment bracket back to the grabbing position. The sensor on the fixing mechanism 3 releases a signal, the second cylinder 22 opens, the first cylinder 21 clamps, and the luggage compartment bracket at the waiting position slides down. When the second sensor 221 senses the luggage compartment bracket, the first cylinder 21 opens and waits for the next cycle, thereby realizing automatic caching of the luggage compartment bracket and improving the production rhythm.

[0034] The support frame 4 is arranged below the feeding slide 1 to support the feeding slide 1, ensuring that the feeding slide 1 is perfectly matched with the production line height of the welding line, reducing the need for manual handling or secondary adjustment. At the same time, the stability of the support frame 4 also ensures the stability and safety of the feeding slide 1.

[0035] In this utility model, if Figure 3 As shown, the feed rail 1 includes a pair of parallel slide bars 13, onto which the luggage rack's two ends are attached. The slide bars 13 are designed to provide a smooth and continuous sliding path, enabling the rack to move smoothly along its length. Because the slide bars 13 are arranged in parallel, they ensure that the rack maintains a stable position during movement, preventing it from swaying or straying from its track.

[0036] The luggage rack of the present invention has an "X"-shaped structure, is relatively thin, and is relatively light. To prevent stacking during the downward movement of the luggage rack, an anti-stacking guide rod 5 is preferably provided between the pair of slide bars 13, extending along the length of the slide bars 13. The width and thickness of the anti-stacking guide rod 5 match the groove of the luggage rack, and the anti-stacking guide rod 5 can be inserted into the groove of the luggage rack. A certain gap is retained between the left and right side surfaces and the lower bottom surface of the anti-stacking guide rod 5 and the luggage rack. The gap between the lower bottom surface and the luggage rack does not exceed the thickness of the luggage rack. This does not affect the downward movement of the luggage rack, and effectively prevents adjacent luggage racks from stacking on each other and shaking left and right during the downward movement.

[0037] The design of the anti-stack guide rod 5 further improves the stability and reliability of the feeding system, ensuring that the luggage box bracket is smooth and continuous during the downward movement.

[0038] Preferably, the feed port 11 is provided with an error-proofing feature 111, such as Figure 4 shown.

[0039] A poka-yoke feature 111 is incorporated into the feed port 11 to enhance the system's accuracy and reliability. This feature ensures that only luggage racks that meet specific sizes, shapes, or specifications are correctly fed into the feed rail 1, thus preventing feeding errors caused by mismatched racks. Furthermore, this feature improves production efficiency by reducing downtime and manual intervention caused by incorrectly fed items, allowing the production line to run more smoothly.

[0040] It is understood that the error-proofing feature 111 can be implemented in any suitable manner. For example, a shape (such as a groove or protrusion) can be designed at the feed port 11 to match a specific portion of the luggage rack, so that only racks that match this shape can be fed in. This design can prevent incorrect feeding through physical constraints, has a simple structure, and is low in manufacturing cost.

[0041] Alternatively, a sensor detection system is set at the feed port 11 to detect parameters such as the size, shape or weight of the bracket being fed in. When a bracket that does not meet the requirements is detected, the sensor will trigger an alarm or a shutdown signal to prevent incorrect feeding; a barcode or QR code label is pasted on the luggage box bracket, and a corresponding scanner is installed at the feed port 11. By scanning the information on the label, the system can identify key information such as the model and specifications of the bracket, and determine whether to allow it to be fed in based on this, which can also facilitate subsequent tracking; a movable mechanical blocking device (such as a gate, baffle, etc.) is set at the feed port 11. When incorrect feeding is detected, the device will move quickly and block the bracket from entering the feeding slide 1, etc., to improve the accuracy and reliability of the feeding system, thereby improving production efficiency.

[0042] In the present invention, an angle adjustment component 6 is provided between the support frame and the higher end of the feeding slide 1 , for adjusting the feeding slide 1 to a certain tilt angle and fixing it.

[0043] The angle adjustment assembly 6 allows the feed rail 1 to be adjusted to different inclination angles according to actual needs. It can flexibly handle luggage racks of different sizes, weights, or materials, ensuring that the rack moves stably and smoothly on the rail, avoiding jamming or slipping due to improper angles.

[0044] Furthermore, the support frame is configured as a three-dimensional trapezoidal frame, the angle adjustment component 6 is configured at one end of the lower base of the three-dimensional trapezoidal frame, the lower base of the three-dimensional trapezoidal frame is configured to be retractable, and a rotating shaft 7 is configured at one end of the upper base of the three-dimensional trapezoidal frame.

[0045] The design of the three-dimensional trapezoidal frame is more structurally stable. The angle adjustment component 6 is arranged at the lower end of the three-dimensional trapezoidal frame, so that the operator can easily approach these components to make necessary adjustments and repairs. The lower end of the feeding slide 1 is connected to the rotating shaft 7 arranged at the upper end of the three-dimensional trapezoidal frame, which can realize the rotation of the feeding slide 1 within a certain range, thereby improving the flexibility and stability of the equipment.

[0046] In some embodiments, the angle adjustment assembly 6 includes a chute extending in the vertical direction, and a locking structure is provided on the chute. When the inclination angle of the feed slide 1 needs to be adjusted, the operator can move the feed slide 1 up and down in the chute by any appropriate means (such as manually operating an adjustment handle, knob, or lever, etc.). As the feed slide 1 moves in the chute, its rotation angle around the rotation axis 7 will also change accordingly, thereby adjusting the inclination angle of the feed slide 1. Once the feed slide 1 is adjusted to the desired inclination angle, the operator can use the locking structure on the chute to fix it in that position.

[0047] In the present invention, since the luggage box bracket has a small weight of its own, it may stagnate due to the large friction between it and the feeding slide rail 1. Preferably, a vibration mechanism 8 is provided on the feeding slide rail 1. After it is turned on, the stagnant luggage box bracket can be vibrated to continue to slide down.

[0048] In the present invention, a leveling mechanism 9 is provided at one end of the support frame 4 away from the feeding slide rail 1. The leveling mechanism 9 can ensure that the support frame 4 can maintain a horizontal state on any uneven ground, which helps prevent the equipment from shaking or tilting due to uneven ground, thereby enhancing the stability of the entire system.

[0049] In the present invention, the feed slide rail 1 is further provided with a plurality of cross-shaped brackets 14 spanning above the anti-stack guide rod 5 for installing a protective cover.

[0050] The protective cover can protect the feeding slide 1 and its related components from the erosion of dust, dirt and other pollutants. It can be understood that the material of the protective cover can be any appropriate material, preferably transparent acrylic material, which is convenient for observing the feeding process. The design of the X-shaped bracket 14 makes the installation and removal of the protective cover simple and quick.

[0051] In the present invention, the fixing mechanism 3 includes a fixing groove 31 for fixing the luggage box bracket, and a first fixed claw 32 is provided on the side of the fixing groove 31 away from the feeding slide rail 1, and a second claw 33 that can be switched between an open and a closed state is provided on the side of the fixing groove 31 close to the feeding slide rail 1.

[0052] Figure 1 and Figure 2 The figure shows a travel change of the fixing mechanism 3 at different positions. Figure 5 This is an enlarged view of the fixing mechanism 3, in which the specific structure of the fixing mechanism 3 can be seen. The fixing mechanism 3 is designed to stably fix the luggage box bracket to ensure that it is accurately positioned and not easy to fall off during the feeding process.

[0053] The working principle of the fixing mechanism 3 is as follows: the driven fixing mechanism 3 moves from the grabbing position to the discharge port 12, and the fixing groove 31 is docked with the discharge port 12. When the luggage box bracket is not placed, the second claw 33 is in the open state, allowing the luggage box bracket to slide easily into the fixing groove 31, and the first claw 32 is fixed, serving as a support and limit point on one side of the fixing groove 31. One side edge of the luggage box bracket contacts the first claw 32, which plays a role of preliminary positioning and limiting. When the luggage box bracket completely enters the fixing groove 31 and reaches the predetermined position, the second claw 33 automatically closes under the action of a certain trigger mechanism (such as a spring, cylinder, electromagnet, etc.). The second claw 33 tightly clamps the other side of the luggage box bracket, and together with the first claw 32 forms a stable fixing structure, so that the luggage box bracket is smoothly brought back to the grabbing position by the fixing mechanism 3.

[0054] In summary, the specific working process of the utility model is as follows:

[0055] First, the bottom surface is leveled by the leveling mechanism 9, and the angle is adjusted by the angle adjustment component 6 so that the luggage box bracket can slide down at a uniform speed. The luggage box bracket is placed on the feeding port 11. The wrong plate cannot be put in by the anti-error feature 111. Then, the luggage box bracket is slid down along the slide bar 13 to the required position by the simultaneous action of the feeding slide rail 1 and the anti-stacking guide rod 5. Since stacking may occur during the sliding process, the anti-stacking guide rod 5 needs to be adjusted to avoid stacking. Because this feeding device slides the luggage box bracket by gravity, and the luggage box bracket itself has a small weight, the friction between the luggage box bracket and the slide rail is large, causing stagnation. At this time, The vibration mechanism 8 can vibrate the luggage box bracket to continue to slide down. The in-position detection system is composed of two sensors and two cylinders. One cylinder is controlled by one sensor. The second cylinder 22 at the arrival position and the first cylinder 21 at the waiting position are opened at the same time to prevent the luggage box bracket from sliding down. Then the sensor on the fixing mechanism 3 gives a signal, and the second cylinder 22 clamps to ensure that one luggage box bracket slides down. Then the fixing mechanism 3 fixes the luggage box bracket, releases the signal, and the second cylinder 22 opens. The first cylinder 21 clamps, and the luggage box bracket slides down. When the second sensor 221 senses the luggage box bracket, the first cylinder 21 opens and waits for the next cycle.

[0056] The feeding device provided by the utility model can realize the caching of the luggage box bracket, improve the production rhythm, reduce the labor time, and has a relatively low cost compared to the motor cost and can also meet the flexible production requirements of the welding line.

[0057] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention may be subjected to various simple modifications, including combining the specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be considered as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A welding line feeding device for transporting a luggage box bracket to a grabbing position, characterized in that: include: A feeding slide rail (1) is arranged obliquely, wherein a feed inlet (11) is provided at a higher end of the feeding slide rail (1), and a discharge outlet (12) is provided at a lower end of the feeding slide rail (1); An in-position detection lowering mechanism (2), the in-position detection lowering mechanism (2) is arranged at a position close to the discharge port (12), the in-position detection lowering mechanism (2) comprises a first cylinder (21), a second cylinder (22), and a stopper (23) arranged on the first cylinder (21) and the second cylinder (22), the first cylinder (21) and the second cylinder (22) being arranged below the feeding slide rail (1) in sequence along the length direction of the feeding slide rail (1), the first cylinder (21) and the second cylinder (22) being connected to a first sensor (211) and a second sensor (221) respectively; A fixing mechanism (3), the fixing mechanism (3) being movably arranged at a lower end of the feeding slide rail (1) and capable of switching between a grabbing position and the discharge port (12), for receiving and fixing the luggage box bracket; as well as A support frame (4) is provided below the feed slide rail (1) and is used to lift the feed slide rail (1) to a height suitable for the welding line.

2. The welding line feeding device according to claim 1, characterized in that: The feeding slide rail (1) comprises a pair of parallel sliding rods (13), and the two ends of the luggage box bracket are respectively overlapped on the sliding rods (13).

3. The welding line feeding device according to claim 2, characterized in that: An anti-stack guide rod (5) extending along the length direction of the slide rod (13) is provided between the pair of slide rods (13).

4. The welding line feeding device according to claim 1, characterized in that: The feed port (11) is provided with an error-proofing feature (111).

5. The welding line feeding device according to claim 1, characterized in that: An angle adjustment component (6) is provided between the support frame (4) and the higher end of the feeding slide rail (1), and the angle adjustment component (6) is configured to be able to adjust and fix the inclination angle of the feeding slide rail (1).

6. The welding line feeding device according to claim 5, characterized in that: The support frame (4) is configured as a three-dimensional trapezoidal frame, the angle adjustment component (6) is provided at one end of the lower base of the three-dimensional trapezoidal frame, and a rotating shaft (7) is provided at one end of the upper base of the three-dimensional trapezoidal frame.

7. The welding line feeding device according to claim 1, characterized in that: The feeding slide rail (1) is also provided with a vibration mechanism (8).

8. The welding line feeding device according to claim 1, characterized in that: A leveling mechanism (9) is provided at one end of the support frame (4) away from the feeding slide rail (1).

9. The welding line feeding device according to claim 3, characterized in that: The feeding slide rail (1) is also provided with a plurality of cross-shaped brackets (14) spanning above the anti-stack guide rod (5) for installing a protective cover.

10. The welding line feeding device according to claim 1, characterized in that: The fixing mechanism (3) comprises a fixing groove (31) for fixing the luggage box bracket, a first fixed claw (32) being provided on a side of the fixing groove (31) away from the feeding slide rail (1), and a second claw (33) capable of switching between an open state and a closed state being provided on a side of the fixing groove (31) close to the feeding slide rail (1).

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