An automated assembly robot for production lines

Abstract

This invention discloses an automated assembly robot for a production line, relating to the field of robotics. It includes a lower mold mounted on a workbench, an upper mold slidably mounted on a vertical plate, and a clamping seat mounted on the lower end of the upper mold. A feeding mechanism for conveying connecting caps is also slidably mounted on the workbench. The lower end of the feeding mechanism is connected to a connecting rod via a guide rod. The upper end of the connecting rod is rotatably connected to the upper mold so that while the upper mold moves upward and resets, it drives the feeding mechanism to deliver the connecting caps to the top of the placement slot. A lifting mechanism is also mounted on the guide rod, cooperating with the ejector mechanism within the lower mold to eject the assembled bracket from the placement slot. This invention automates the bracket assembly process and, compared to traditional methods, significantly improves assembly efficiency, reduces errors caused by manual assembly, and increases the yield rate.

Description

Technical Field

[0001] This invention belongs to the field of robotics technology, specifically relating to an automated assembly robot for production lines. Background Technology

[0002] like Figure 1 The bracket assembly for mounting internal sensors in a certain type of automobile consists of a bracket 100, a reinforcing rib 200, and a connecting cap 300. The reinforcing rib 200 is welded to the bracket 100, and the connecting cap 300 is slidably connected to a through hole 400 at the center of the bracket 100. Traditionally, the assembly of these three components is done manually in steps: first, the connecting cap 300 is inserted into the through hole 400; then, the bracket 100 is placed on a welding fixture; and finally, the reinforcing rib 200 is welded and fixed to the bracket 100. This assembly method has low efficiency and is difficult to meet the requirements of large-scale assembly on a production line. Furthermore, manual welding introduces significant assembly errors, adversely affecting product quality. Summary of the Invention

[0003] The purpose of this invention is to provide an automated assembly robot for production lines to overcome the aforementioned deficiencies in the prior art.

[0004] An automated assembly robot for a production line includes a lower mold mounted on a workbench, an upper mold slidably mounted on a vertical plate, and a clamping seat mounted on the lower end of the upper mold. The vertical plate is vertically mounted on the workbench. The lower mold is provided with a placement groove for placing a bracket to be welded. The clamping seat is used to clamp the reinforcing rib to be welded. A feeding mechanism for conveying a connecting cap is also slidably mounted on the workbench. The lower end of the feeding mechanism is connected to a connecting rod via a guide rod. The upper end of the connecting rod is rotatably connected to the upper mold so that the upper mold drives the feeding mechanism to deliver the connecting cap to the top of the placement groove while moving upward and resetting. A lifting mechanism is also mounted on the guide rod and cooperates with the ejector mechanism in the lower mold to eject the assembled bracket from the placement groove.

[0005] Furthermore, the upright plate is also equipped with a lifting mechanism that drives the upper mold to slide up and down, specifically including a base, a servo motor and a lead screw. The base is installed at the upper end of the upright plate, the servo motor is installed at the upper end of the base and its output end is connected to the lead screw, the lead screw passes through the upper mold and is threadedly connected to the four-bar nut inside the upper mold, and the lower end of the lead screw is rotatably connected to the bearing seat on the worktable. The upper mold is slidably connected to the slide rail set at the front end of the upright plate by means of a slider.

[0006] Furthermore, the bottom surface of the placement groove is provided with a cylindrical groove that mates with the connecting cap.

[0007] Furthermore, a positive electrode plate electrically connected to the positive terminal of the power supply is installed in the clamping seat, and a negative electrode post electrically connected to the negative terminal of the power supply is installed in the lower mold, with the upper end of the negative electrode post extending to the upper end of the placement groove and cooperating with the mounting hole on the bracket to be welded.

[0008] Furthermore, the feeding mechanism includes a slide block, a guide post, a return spring, and a support arm. The slide block is slidably connected to the worktable by means of a slider and is located on the front side of the lower mold. There is at least one guide post and it is installed on the upper end of the slide block. The support arm is slidably connected to the guide post and is limited by a nut on the upper end of the guide post. The return spring is sleeved on the guide post between the slide block and the support arm. The rear end of the support arm is provided with a U-shaped notch for placing a connecting cap.

[0009] Furthermore, the guide rod is horizontally arranged and connected to the slide block by means of the connecting block at the lower end of the slide block. The lower end of the worktable is also equipped with a guide seat for supporting the guide rod. The other end of the guide rod is slidably connected to a moving block and limited by two nuts. A return spring is also sleeved on the guide rod between the moving block and the nut near the end of the guide rod. Side rods are installed at the left and right ends of the moving block. The side rods are rotatably connected to the connecting rods. The two connecting rods are located on the left and right sides of the upper mold, respectively.

[0010] Furthermore, the ejector mechanism includes an ejector rod, a base plate, and a return spring. The ejector rod is vertically slidably connected to the lower mold and the worktable, and an ejector block is installed at the upper end of the ejector rod. The lower end of the ejector rod is connected to the base plate. The return spring is sleeved on the ejector rod between the worktable and the base plate.

[0011] The lifting mechanism includes a guide block and a support. The support is mounted on the guide rod and is limited by a nut. The lower end of the support is connected to the guide block.

[0012] Furthermore, the workbench is provided with sliding holes for the connecting block to move.

[0013] Furthermore, the workbench and upright plate are provided with guide grooves for the movement of the connecting rods.

[0014] The advantages of this invention are:

[0015] 1. This invention automates the assembly process of the bracket assembly, significantly improves assembly efficiency compared to traditional methods, reduces errors caused by manual assembly, and increases the yield rate.

[0016] 2. The feeding mechanism and ejection mechanism in this invention can automatically feed the connecting cap and automatically eject the bracket assembly after welding by means of the rising and falling of the upper mold. Compared with the traditional separate setting of corresponding electrical components, it simplifies the structural design and ensures the coordination of various actions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the support assembly involved in the present invention.

[0018] Figure 2 , Figure 3 These are schematic diagrams of the structure of the present invention from different angles.

[0019] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0020] Figure 5 This is the right view of the present invention.

[0021] Figure 6 This is a schematic diagram of the upper mold structure.

[0022] Figure 7 , Figure 8 This is a schematic diagram showing the connection of the lower mold and ejector mechanism at different angles.

[0023] Figure 9 This is a schematic diagram of the feeding mechanism.

[0024] in:

[0025] 100-Bracket, 200-Reinforcing rib, 300-Connecting cap, 400-Through hole, 500-Mounting hole;

[0026] 1-Workbench, 2-Upper mold, 3-Clamping seat, 4-Upright plate, 5-Lower mold, 50-Placement slot, 6-Feeding mechanism, 60-Slide block, 61-Guide post, 62-Reset spring one, 63-Support arm, 64-U-shaped notch, 7-Guide rod, 8-Connecting rod, 9-Connecting block, 10-Guide seat, 11-Moving block, 12-Reset spring three, 13-Ejecting mechanism, 130-Ejecting rod, 131-Base plate, 132-Reset spring two, 133-Ejecting block, 14-Lifting mechanism, 140-Guide block, 141-Support, 15-Lifting mechanism, 150-Base, 151-Servo motor, 152-Lead screw, 16-Positive electrode plate, 17-Negative electrode post, 18-Sliding hole, 19-Guide groove, 20-Side rod. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figures 2 to 9As shown, an automated assembly robot for a production line includes a lower mold 5 mounted on a workbench 1, an upper mold 2 slidably mounted on a vertical plate 4, and a clamping seat 3 mounted on the lower end of the upper mold 2. The vertical plate 4 is vertically mounted on the workbench 1. The lower mold 5 is provided with a placement groove 50 for placing a bracket 100 to be welded. The clamping seat 3 is used to clamp the reinforcing rib 200 to be welded. The clamping seat 3 can adopt some clamping components with elastic clamping function on the market to facilitate the quick clamping of the reinforcing rib 200.

[0029] The workbench 1 is also slidably mounted with a feeding mechanism 6 for conveying the connecting cap 300. The lower end of the feeding mechanism 6 is connected to the connecting rod 8 by means of a guide rod 7. The upper end of the connecting rod 8 is rotatably connected to the upper mold 2 so that the upper mold 2 drives the feeding mechanism 6 to send the connecting cap 300 to the top of the placement groove 50 while moving upward and resetting. The bottom surface of the placement groove 50 is provided with a cylindrical groove that mates with the connecting cap 300 so that the connecting cap 300 can be smoothly assembled onto the bracket 100.

[0030] Specifically, the feeding mechanism 6 includes a slide 60, a guide post 61, a return spring 62, and a support arm 63. The slide 60 is slidably connected to the worktable 1 by means of a slider and is located on the front side of the lower mold 5. There is at least one guide post 61 and it is installed on the upper end of the slide 60. The support arm 63 is slidably connected to the guide post 61 and is limited by the nut at the upper end of the guide post 61. The return spring 62 is sleeved on the guide post 61 between the slide 60 and the support arm 63. The rear end of the support arm 63 is provided with a U-shaped notch for placing the connecting cap 300. To achieve simultaneous up-and-down movement of the upper mold 2 and the synchronous movement of the feeding mechanism 6, the guide rod 7 is horizontally positioned and connected to the slide 60 via a connecting block 9 at the lower end of the slide 60. A guide seat 10 for supporting the guide rod 7 is also installed at the lower end of the worktable 1. A moving block 11 is slidably connected to the other end of the guide rod 7 and limited by two nuts. A return spring 12 is sleeved on the guide rod 7 between the moving block 11 and the nut near the end of the guide rod 7. Side rods 20 are installed at both ends of the moving block 11, and the side rods 20 are rotatably connected to the connecting rods 8. The two connecting rods 8 are located on the left and right sides of the upper mold 2, respectively. Furthermore, the worktable 1 is provided with sliding holes 18 for the connecting block 9 to move, and the worktable 1 and the upright plate 4 are provided with guide grooves 19 for the connecting rods 8 to move.

[0031] The guide rod 7 is also equipped with a lifting mechanism 14, which cooperates with the ejector mechanism 13 in the lower mold 5 to eject the assembled bracket 100 from the placement groove 50. Specifically, the ejector mechanism 13 includes an ejector rod 130, a base plate 131, and a return spring 132. The ejector rod 130 is vertically slidably connected to the lower mold 5 and the worktable 1, and an ejector block 133 is installed at the upper end of the ejector rod 130. The lower mold 5 is provided with a T-shaped hole that cooperates with the ejector block 133 and the ejector rod 130. The lower end of the ejector rod 130 is connected to the base plate 131. The return spring is sleeved on the ejector rod 130 between the worktable 1 and the base plate 131.

[0032] The lifting mechanism 14 includes a guide block 140 and a support 141. The support 141 is mounted on the guide rod 7 and is limited by a nut. The lower end of the support 141 is connected to the guide block 140. Thus, the lifting mechanism 13 can be lifted and lowered by means of the lateral movement of the guide block 140.

[0033] In this embodiment, in order to realize the up and down movement of the upper mold 2, a lifting mechanism 15 for driving the upper mold 2 to slide up and down is also installed on the vertical plate 4. Specifically, it includes a base 150, a servo motor 151 and a lead screw 152. The base 150 is installed on the upper end of the vertical plate 4, the servo motor 151 is installed on the upper end of the base 150 and its output end is connected to the lead screw 152. The lead screw 152 passes through the upper mold 2 and is threadedly connected to the four-bar nut inside the upper mold 2. The lower end of the lead screw 152 is rotatably connected to the bearing seat on the worktable 1. The upper mold 2 is slidably connected to the slide rail set at the front end of the vertical plate 4 by means of a slider. In this embodiment, resistance welding is used for welding between the reinforcing rib 200 and the bracket 100. For this purpose, a positive plate 16 electrically connected to the positive terminal of the power supply is installed in the clamping seat 3, and a negative terminal post 17 electrically connected to the negative terminal of the power supply is installed in the lower mold 5. The upper end of the negative terminal post 17 extends to the upper end of the placement groove 50 and cooperates with the mounting hole 500 on the bracket 100 to be welded.

[0034] The assembly process of the bracket assembly in this embodiment is as follows:

[0035] First, with the aid of a robotic arm or manual labor, the bracket 100 to be welded, the connecting cap 300, and the reinforcing rib 200 are placed in the placement groove 50, the U-shaped notch, and the clamping seat 3, respectively. At this time, the upper mold 2 is at its highest point, the support arm 63 is at its farthest point from the lower mold 5, and the guide block 140 in the lifting mechanism 14 does not contact the base plate 131 in the ejection mechanism 13. Next, the servo motor 151 drives the lead screw 152 to rotate, thereby driving the upper mold 2 to move downward, and with the aid of the connecting rod 8, the slide 60 and the support arm 63 move horizontally towards the lower mold 5 until the slide 60 contacts the front side of the lower mold 5 and cannot move. At this time, the connecting cap 300 is exactly above the through hole 400 at the center of the bracket 100. Then, under the action of the return spring 312, the upper mold 2 continues to move downward a short distance until the lower mold 5 moves downward. At the lowest point, the reinforcing rib 200 contacts the bracket 100 and presses the connecting cap 300 into the through hole 400. Since the distance between the reinforcing rib 200 and the bracket 100 is less than the length of the connecting cap 300, the connecting cap 300 is confined within the through hole 400. Next, the power supply to the positive electrode plate 16 and the negative electrode post 17 is turned on to start welding. After welding is completed, the upper mold 2 moves upward and resets to the first high point under the drive of the servo motor 151. The slide 60 and the support arm 63 also reset to the first far point. Then, the upper mold 2 continues to rise to the second high point and simultaneously drives the slide 60 and the support arm 63 to the second far point. During this process, the guide block 140 contacts the bottom plate 131 and lifts the bottom plate 131. Then, the bracket 100 is pushed out of the placement groove 50 by means of the push rod 130 for easy material removal.

[0036] After the robotic arm or a person removes the material, the upper mold 2 moves down and returns to the first high point. The ejector mechanism 13 also returns to its original position under the action of the reset spring 132. The assembly of the bracket assembly can be completed by repeating the previous operation.

[0037] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An automated assembly robot for a production line, characterized in that, The assembly includes a lower mold (5) mounted on a workbench (1), an upper mold (2) slidably mounted on a vertical plate (4), and a clamping seat (3) mounted on the lower end of the upper mold (2). The vertical plate (4) is vertically mounted on the workbench (1). The lower mold (5) is provided with a placement groove (50) for placing a support bracket (100) to be welded. The clamping seat (3) is used to clamp the reinforcing rib (200) to be welded. A feeding mechanism for conveying a connecting cap (300) is also slidably mounted on the workbench (1). 6) The lower end of the feeding mechanism (6) is connected to the connecting rod (8) by means of the guide rod (7). The upper end of the connecting rod (8) is rotatably connected to the upper mold (2) so that the upper mold (2) drives the feeding mechanism (6) to send the connecting cap (300) to the top of the placement groove (50) while the upper mold (2) moves upward to reset. The guide rod (7) is also equipped with a lifting mechanism (14) and cooperates with the ejector mechanism (13) in the lower mold (5) to eject the assembled bracket (100) from the placement groove (50). The feeding mechanism (6) includes a slide (60), a guide post (61), a return spring (62), and a support arm (63). The slide (60) is slidably connected to the worktable (1) by means of a slider and is located on the front side of the lower mold (5). There is at least one guide post (61) and it is installed on the upper end of the slide (60). The support arm (63) is slidably connected to the guide post (61) and limited by the nut at the upper end of the guide post (61). The return spring (62) is sleeved on the guide post (61) between the slide (60) and the support arm (63). The rear end of the support arm (63) is provided with a U-shaped notch for placing the connecting cap (300). The guide rod (7) is horizontally set and connected to the slide (60) by means of the connecting block (9) at the lower end of the slide (60). The lower end of the worktable (1) is also equipped with a guide seat (10) for supporting the guide rod (7). The other end of the guide rod (7) is slidably connected to a moving block (11) and limited by two nuts. A return spring (12) is also sleeved on the guide rod (7) between the moving block (11) and the nut near the end of the guide rod (7). Side rods (20) are installed at the left and right ends of the moving block (11). The side rods (20) are rotatably connected to the connecting rods (8). The two connecting rods (8) are located on the left and right sides of the upper mold (2). The ejector mechanism (13) includes an ejector rod (130), a base plate (131), and a second return spring (132). The ejector rod (130) is vertically slidably connected to the lower mold (5) and the worktable (1), and an ejector block (133) is installed on the upper end of the ejector rod (130). The lower end of the ejector rod (130) is connected to the base plate (131). The second return spring (132) is sleeved on the ejector rod (130) between the worktable (1) and the base plate (131). The lifting mechanism (14) includes a guide block (140) and a support (141). The support (141) is mounted on the guide rod (7) and limited by a nut. The lower end of the support (141) is connected to the guide block (140). The workbench (1) is provided with a sliding hole (18) for the connecting block (9) to move.

2. The automated assembly robot for a production line according to claim 1, characterized in that, The vertical plate (4) is also equipped with a lifting mechanism (15) for driving the upper mold (2) to slide up and down. Specifically, it includes a base (150), a servo motor (151), and a lead screw (152). The base (150) is installed on the upper end of the vertical plate (4). The servo motor (151) is installed on the upper end of the base (150) and its output end is connected to the lead screw (152). The lead screw (152) passes through the upper mold (2) and is threadedly connected to the four-bar nut inside the upper mold (2). The lower end of the lead screw (152) is rotatably connected to the bearing seat on the worktable (1). The upper mold (2) is slidably connected to the slide rail set at the front end of the vertical plate (4) by means of a slider.

3. An automated assembly robot for a production line according to claim 1, characterized in that, The bottom surface of the placement groove (50) is provided with a cylindrical groove that mates with the connecting cap (300).

4. An automated assembly robot for a production line according to claim 1, characterized in that, The clamping seat (3) is equipped with a positive plate (16) electrically connected to the positive terminal of the power supply, and the lower mold (5) is equipped with a negative terminal post (17) electrically connected to the negative terminal of the power supply. The upper end of the negative terminal post (17) extends to the upper end of the placement groove (50) and cooperates with the mounting hole (500) on the welding bracket (100).

5. An automated assembly robot for a production line according to claim 1, characterized in that, The workbench (1) and the upright plate (4) are provided with guide grooves (19) for the movement of the connecting rod (8).

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