Square tube welding and feeding device for automobile backrest framework

Abstract

The utility model relates to an automobile backrest framework square tube welding feeding device which comprises a machine frame, a triangular placing frame is installed on the machine frame, a straightening mechanism is arranged on the machine frame, and a transferring mechanism is installed between the triangular placing frame and the straightening mechanism. The straightening mechanism comprises a bottom plate, a first air cylinder is installed on one side of the bottom plate, the output end of the first air cylinder is connected with a first push plate, a first limiting piece is installed on the left side of the bottom plate, and a second limiting piece is installed on the upper side of the bottom plate. A plurality of 7-shaped square tubes are stacked on the triangular placing frame, the transferring mechanism transfers one 7-shaped square tube to a bottom plate on the straightening mechanism from the triangular placing frame, the straightening mechanism shapes the 7-shaped square tubes until one ends of the 7-shaped square tubes directly abut against second limiting pieces, the positions of the 7-shaped square tubes are limited, and in this way, straightening of the 7-shaped square tubes is completed. And after being grabbed by the manipulator, the manipulator moves to a set position without manual operation, so that the labor input is reduced, and the labor intensity is low.

Description

Technical Field

[0001] The utility model relates to the technical field of welding feeding, in particular to a welding feeding device for a square tube of a car backrest frame. Background Art

[0002] As an important part of automobile parts, the automobile backrest frame needs to be supported by the backrest main beam. The backrest main beam is composed of U-shaped tubes, connecting tubes, steel wires, and headrest mounting rods. These parts are welded together to form the backrest main beam. Most of the automobile backrest main beams are made of hollow alloy tubes, and square tubes are a more commonly used alloy tube. In the automobile backrest frame welding production line, most of them can be automated. The manipulator grabs the square tube and then moves it to the set position, waiting for the station switching device to grab it at the set position and then transfer it to the welding station for welding work, replacing manual operation. However, some of the square tubes that make up the automobile backrest frame are straight tubes, and some are "7" shaped; and when the 7-shaped square tube is transported, due to its shape, it needs to be straightened to the appropriate angle and position. When the manipulator grabs and moves it to the set position, the placement of the 7-shaped square tube will not be messy, which is convenient for subsequent transfer to the welding station for welding work. At present, the alignment of the 7-shaped square tube is generally done manually, and then the tube is grabbed by a robot and moved to a set position, which requires a lot of manpower and has high labor intensity. Utility Model Content

[0003] The utility model aims to design a welding feeding device for square tubes of automobile backrest frames, which can realize the alignment of 7-shaped square tubes without manual operation and reduces labor input, so as to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding and feeding device for square tubes of a car backrest frame is provided, comprising a frame, a triangular placing frame is installed on the frame, a plurality of 7-shaped square tubes are stacked on the triangular placing frame, a straightening mechanism is provided on the frame at one side of the triangular placing frame, a transfer mechanism is installed between the triangular placing frame and the straightening mechanism; the straightening mechanism comprises a base plate, a first cylinder is installed on one side of the base plate, a first push plate is connected to the output end of the first cylinder, a first limit member is installed on the left side of the base plate, and a second limit member is installed on the upper side of the base plate.

[0005] Furthermore, the triangular placement rack is a triangular placement rack with a cross-section formed by connecting multiple rods through multiple mounting seats.

[0006] Furthermore, a second cylinder is installed on the frame and above the frame between the tripod placement frame and the transfer mechanism.

[0007] Furthermore, a third cylinder is installed on the frame and directly below the output end of the tripod placement frame, and the output end of the third cylinder is connected to a second push plate.

[0008] Furthermore, fourth cylinders are respectively installed on both sides of the frame and at the output ends of the tripod placement frame.

[0009] Furthermore, the transfer mechanism includes a motor, a transmission member and a transfer plate, the output end of the motor is in transmission connection with the transmission member, and the transmission member is connected to the transfer plate.

[0010] Furthermore, limit blocks are installed on both sides of the transfer plate.

[0011] Furthermore, the transmission member includes a mounting seat and a rotating shaft, the motor is transmission-connected to the rotating shaft, the mounting seat is installed on both sides of the frame, the rotating shaft is rotationally connected to the mounting seat, and the rotating shaft is connected to the transfer plate via a fixed seat.

[0012] Furthermore, the bottom plate is provided with a slot for the transfer plate to pass through, and buffers are installed on both sides of the bottom plate at the slot, and the upper end surface of the buffer is lower than the upper end surface of the bottom plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model arranges a triangular placement frame and a straightening mechanism, and multiple 7-shaped square tubes are stacked on the triangular placement frame. The transfer mechanism transfers a 7-shaped square tube from the triangular placement frame to a bottom plate on the straightening mechanism. The first limit piece and the second limit plate respectively limit the position of the 7-shaped square tube, thereby limiting the angle of the 7-shaped square tube. The first cylinder extends to drive the first push plate to push forward to shape the 7-shaped square tube until one end of the 7-shaped square tube directly reaches the second limit piece, limiting the position of the 7-shaped square tube. In this way, the straightening of the 7-shaped square tube is completed, and the robot arm grabs the rear displacement to the set position. No manual operation is required, which reduces labor input and has low labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of Embodiment 1 of the utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the overall structure of Example 2 of the utility model;

[0019] The names of the components marked in the figure are as follows:

[0020] 1. Frame; 2. Triangle placement frame; 3. Alignment mechanism; 4. Transfer mechanism; 5. Bottom plate; 6. First cylinder; 7. First push plate; 8. First limiter; 9. Second limiter; 10. Second cylinder; 11. Third cylinder; 12. Second push plate; 13. Fourth cylinder; 14. Motor; 15. Transmission member; 16. Transfer plate; 17. Limiter; 18. Notch; 20. Buffer. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] Example 1: Reference Figure 1-2A welding and feeding device for square tubes of a car backrest frame comprises a frame 1, on which a triangular placing frame 2 is mounted, wherein the triangular placing frame 2 is a triangular placing frame 2 with a cross section formed by connecting a plurality of rods through a plurality of mounting seats, a plurality of 7-shaped square tubes are stacked on the triangular placing frame 2, and the triangular placing frame 2 is inclined to facilitate the unloading of the 7-shaped square tubes. A straightening mechanism 3 is provided on the frame 1 at one side of the tripod placement frame 2, and the straightening mechanism 3 includes a base plate 5, a first cylinder 6 is installed on one side of the base plate 5, and the output end of the first cylinder 6 is connected to a first push plate 7, and a first limit member 8 is installed on the left side of the base plate 5. The first limit member 8 includes a plurality of rollers, and the plurality of rollers are arranged in two rows in parallel. A 7-shaped square tube can be placed between the two rows of rollers, and the rollers can facilitate the movement of the 7-shaped square tube to adjust the position, and can limit the position of one end of the 7-shaped square tube. A second limit member 9 is installed on the upper side of the base plate 5, and the second limit member 9 includes at least one limit block 17, and the limit block 17 can limit the position of the other end of the 7-shaped square tube. The combination of the first limit member 8 and the second limit member 9 limits the angle of the 7-shaped square tube. Fourth cylinders 13 are installed on both sides of the frame 1 and at the output end of the triangular frame 2. The output end of the fourth cylinder 13 is connected to a first clamping plate. When the fourth cylinder 13 is in an extended state, the first clamping plate is pushed to fix the two ends of the 7-shaped square tube at the output end of the triangular frame 2. A third cylinder 11 is installed on the frame 1 and directly below the output end of the triangular frame 2. The output end of the third cylinder 11 is connected to a second push plate 12. When the third cylinder 11 is in an extended state, the second push plate 12 can be pushed to drive the first 7-shaped square tube at the output end of the triangular frame 2 to move upward, so that the first 7-shaped square tube can be transferred to the transfer plate 16.

[0023] A transfer mechanism 4 is installed between the tripod placement frame 2 and the straightening mechanism 3. The transfer mechanism 4 includes a motor 14, a transmission member 15 and a transfer plate 16. The output end of the motor 14 is connected to the transmission member 15 in a transmission manner, and the transmission member 15 is connected to the transfer plate 16. Limit blocks 17 are installed on both sides of the transfer plate 16, and the limit blocks 17 can place a 7-shaped square tube. The transmission member 15 includes a mounting seat and a rotating shaft. The motor 14 is connected to the rotating shaft in a transmission manner. The mounting seat is installed on both sides of the frame 1. The rotating shaft is connected to the mounting seat in a rotational manner, and the rotating shaft is connected to the transfer plate 16 through a fixed seat. A notch 18 is provided on the bottom plate 5, and the notch 18 is provided for the transfer plate 16 to pass through. Buffers 20 are installed on both sides of the notch 18 on the bottom plate 5. The upper end surface of the buffer 20 is lower than the upper end surface of the bottom plate 5. The upper part of the buffer 20 is made of rubber material. When the transfer plate 16 is rotated to the position of the bottom plate 5. The transfer plate 16 can be supported and the impact of the transfer plate 16 can be reduced.

[0024] The working principle of this embodiment is as follows: when in use, multiple 7-shaped square tubes are stacked on the triangular placement frame 2, the fourth cylinder 13 extends out to push the first clamping plate to fix the two ends of the first 7-shaped square tube, and when the first 7-shaped square tube needs to be unloaded, the fourth cylinder 13 retracts, pulls back the first clamping plate and releases the fixation on the two ends of the first 7-shaped square tube; then the third cylinder 11 extends out to push the second push plate 12 and drive the first 7-shaped square tube to move upward, so that the first 7-shaped square tube is hung on the limit block 17 of the transfer plate 16, and then the fourth cylinder 13 extends out and the third cylinder 11 retracts to fix the two ends of the second 7-shaped square tube. The motor 14 is started, driving the rotating shaft to rotate. The rotation of the rotating shaft drives the transfer plate 16 and the first 7-shaped square tube on the transfer plate 16 to rotate until the bottom end of the transfer plate 16 directly hits the buffer member 20. At this time, the upper end surface of the transfer plate 16 is flush with the bottom plate 5, and one end of the first 7-shaped square tube is located at the position of the first limit member 8, and the other end of the first 7-shaped square tube is located at the position of the second limit member 9, which limits the angle of the 7-shaped square tube; then the first cylinder 6 extends out to drive the first push plate 7 to push forward, shaping the 7-shaped square tube, until one end of the 7-shaped square tube directly hits the second limit member 9, which limits the position of the 7-shaped square tube. In this way, the 7-shaped square tube is straightened, and then the robot grabs the rear displacement to the set position. No manual operation is required, which reduces labor input and has low labor intensity.

[0025] Example 2

[0026] refer to Figure 3A welding and feeding device for square tubes of a car backrest frame comprises a frame 1, on which a triangular placing frame 2 is mounted, wherein the triangular placing frame 2 is a triangular placing frame 2 with a cross section formed by connecting a plurality of rods through a plurality of mounting seats, a plurality of 7-shaped square tubes are stacked on the triangular placing frame 2, and the triangular placing frame 2 is inclined to facilitate the unloading of the 7-shaped square tubes. A straightening mechanism 3 is provided on the frame 1 at one side of the tripod placement frame 2, and the straightening mechanism 3 includes a base plate 5, a first cylinder 6 is installed on one side of the base plate 5, and the output end of the first cylinder 6 is connected to a first push plate 7, and a first limit member 8 is installed on the left side of the base plate 5. The first limit member 8 includes a plurality of rollers, and the plurality of rollers are arranged in two rows in parallel. A 7-shaped square tube can be placed between the two rows of rollers, and the rollers can facilitate the movement of the 7-shaped square tube to adjust the position, and can limit the position of one end of the 7-shaped square tube. A second limit member 9 is installed on the upper side of the base plate 5, and the second limit member 9 includes at least one limit block 17, and the limit block 17 can limit the position of the other end of the 7-shaped square tube. The combination of the first limit member 8 and the second limit member 9 limits the angle of the 7-shaped square tube. Fourth cylinders 13 are installed on both sides of the frame 1 and at the output end of the triangular frame 2. The output end of the fourth cylinder 13 is connected to a first clamping plate. When the fourth cylinder 13 is in an extended state, the first clamping plate is pushed to fix the two ends of the 7-shaped square tube at the output end of the triangular frame 2. A second cylinder 10 is installed on the frame 1 and above the triangular frame 2 and the transfer mechanism 4. The output end of the second cylinder 10 is connected to a second clamping plate. When the second cylinder 10 is in an extended state, the second clamping plate is pushed to fix the first 7-shaped square tube at the output end of the triangular frame 2. When the second cylinder 10 is in a retracted state, the second clamping plate is pulled back to release the two ends of the 7-shaped square tube, so as to facilitate the subsequent processes.

[0027] A transfer mechanism 4 is installed between the tripod placement frame 2 and the straightening mechanism 3. The transfer mechanism 4 includes a motor 14, a transmission member 15 and a transfer plate 16. The output end of the motor 14 is connected to the transmission member 15 in a transmission manner, and the transmission member 15 is connected to the transfer plate 16. Limit blocks 17 are installed on both sides of the transfer plate 16, and the limit blocks 17 can place a 7-shaped square tube. The transmission member 15 includes a mounting seat and a rotating shaft. The motor 14 is connected to the rotating shaft in a transmission manner. The mounting seat is installed on both sides of the frame 1. The rotating shaft is connected to the mounting seat in a rotational manner, and the rotating shaft is connected to the transfer plate 16 through a fixed seat. A notch 18 is provided on the bottom plate 5, and the notch 18 is provided for the transfer plate 16 to pass through. Buffers 20 are installed on both sides of the notch 18 on the bottom plate 5. The upper end surface of the buffer 20 is lower than the upper end surface of the bottom plate 5. The upper part of the buffer 20 is made of rubber material. When the transfer plate 16 is rotated to the position of the bottom plate 5. The transfer plate 16 can be supported and the impact of the transfer plate 16 can be reduced.

[0028] The working principle of this embodiment is as follows: when in use, multiple 7-shaped square tubes are stacked on the tripod rack 2, the fourth cylinder 13 extends out to push the first clamping plate to fix the two ends of the first 7-shaped square tube; at the same time, the second cylinder 10 extends out to push the second clamping plate to fix the first 7-shaped square tube; when the first 7-shaped square tube needs to be unloaded, the fourth cylinder 13 retracts, pulls back the first clamping plate and releases the fixation on the two ends of the first 7-shaped square tube; then the second cylinder 10 retracts, pulls back the second clamping plate and releases the fixation on the first 7-shaped square tube, so that the first 7-shaped square tube is hung on the limit block 17 of the transfer plate 16, and then the fourth cylinder 13 extends out and the second cylinder 10 extends out to fix the two ends of the second 7-shaped square tube. The motor 14 is started, driving the rotating shaft to rotate. The rotation of the rotating shaft drives the transfer plate 16 and the first 7-shaped square tube on the transfer plate 16 to rotate until the bottom end of the transfer plate 16 directly hits the buffer member 20. At this time, the upper end surface of the transfer plate 16 is flush with the bottom plate 5, and one end of the first 7-shaped square tube is located at the position of the first limit member 8, and the other end of the first 7-shaped square tube is located at the position of the second limit member 9, which limits the angle of the 7-shaped square tube; then the first cylinder 6 extends out to drive the first push plate 7 to push forward, shaping the 7-shaped square tube, until one end of the 7-shaped square tube directly hits the second limit member 9, which limits the position of the 7-shaped square tube. In this way, the 7-shaped square tube is straightened, and then the robot grabs the rear displacement to the set position. No manual operation is required, which reduces labor input and has low labor intensity.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A welding and feeding device for square tubes of a car backrest frame, comprising a frame (1), characterized in that: A triangular placing frame (2) is installed on the frame (1), and a plurality of 7-shaped square tubes are stacked on the triangular placing frame (2). A straightening mechanism (3) is provided on the frame (1) at one side of the triangular placing frame (2), and a transfer mechanism (4) is installed between the triangular placing frame (2) and the straightening mechanism (3); the straightening mechanism (3) comprises a bottom plate (5), a first cylinder (6) is installed on one side of the bottom plate (5), and a first push plate (7) is connected to the output end of the first cylinder (6), a first limiting member (8) is installed on the left side of the bottom plate (5), and a second limiting member (9) is installed on the upper side of the bottom plate (5).

2. The square tube welding feeding device for automobile backrest frame according to claim 1 is characterized in that: The triangular placement frame (2) is a triangular placement frame (2) formed by connecting a plurality of rods via a plurality of mounting seats and having a triangular cross section.

3. The welding and feeding device for square tubes of automobile backrest frames according to claim 1 is characterized in that: A second cylinder (10) is installed on the frame (1) and above the frame between the tripod placement frame (2) and the transfer mechanism (4).

4. The welding and feeding device for square tubes of automobile backrest frames according to claim 1 is characterized in that: A third cylinder (11) is installed on the frame (1) and directly below the output end of the tripod placement frame (2), and the output end of the third cylinder (11) is connected to a second push plate (12).

5. The welding and feeding device for square tubes of automobile backrest frames according to claim 3 or 4, characterized in that: Fourth cylinders (13) are respectively installed on both sides of the frame (1) and at the output end of the triangular placement frame (2).

6. The welding and feeding device for square tubes of automobile backrest frames according to claim 1 is characterized in that: The transfer mechanism (4) comprises a motor (14), a transmission member (15) and a transfer plate (16); the output end of the motor (14) is in transmission connection with the transmission member (15), and the transmission member (15) is connected to the transfer plate (16).

7. The welding and feeding device for square tubes of automobile backrest frames according to claim 6 is characterized in that: Limiting blocks (17) are installed on both sides of the transfer plate (16).

8. The welding and feeding device for square tubes of automobile backrest frames according to claim 6 is characterized in that: The transmission member (15) comprises a mounting seat and a rotating shaft, the motor (14) is in transmission connection with the rotating shaft, the mounting seat is mounted on both sides of the frame (1), the rotating shaft is rotatably connected with the mounting seat, and the rotating shaft is connected to the transfer plate (16) via a fixed seat.

9. The welding and feeding device for square tubes of automobile backrest frames according to claim 6 is characterized in that: The bottom plate (5) is provided with a slot (18), the slot (18) allowing the transfer plate (16) to pass through, and buffer components (20) are installed on both sides of the slot (18) on the bottom plate (5), and the upper end surface of the buffer component (20) is lower than the upper end surface of the bottom plate (5).

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