A positioning mechanism for frame parts processing and welding

Abstract

The present invention relates to the technical field of frame parts processing, and in particular to a positioning mechanism for frame parts processing welding, including a mounting table, a rotating block, a cross-shaped guide rail, and a placement block, etc. The top of the mounting table is rotatably connected to the rotating block, the top of the rotating block is connected to the cross-shaped guide rail, and the top of the cross-shaped guide rail is slidably connected to four placement blocks for placing frame parts. The present invention can clamp and position the frame parts through the clamping block and the positioning block, and can weld the frame parts through the welding gun. The output shaft of the servo motor can drive the welding gun to rotate so that the welding gun is aligned with the external gap between two adjacent frame parts, so that the top, outside, bottom and inside of the frame parts can be welded, and there is no need to turn over the frame parts, which is more convenient to operate, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of frame component processing, and in particular to a positioning mechanism for frame component processing and welding. Background Art

[0002] Among metal parts, there are many frame-shaped parts, and the frame-shaped parts are welded from four frame components. The four frame components are combined into a complete frame, and the four frame components are connected by welding. Before welding, the frame components need to be positioned to avoid positional deviation of the frame components.

[0003] When welding the frame parts, the two frame parts are brought into contact with each other, and the two frame parts are clamped by a fixture to position the frame parts, and then the frame parts are welded by a welding machine. The frame parts are placed in the fixture, and the gap at the bottom between the two frame parts is in contact with the fixture, so that the welding machine cannot weld the gap at the bottom. Therefore, after welding the top, outside and inside of the frame parts, the frame parts need to be taken out, and then the frame parts are turned over, the frame parts are turned over, and then the frame parts are placed in the fixture, and the frame parts are clamped and positioned by the fixture. The frame-shaped parts are welded from four frame parts, and the frame-shaped parts have four corners, so they need to be welded four times. Each welding requires manual turning over, and the fixture also needs to be manually operated. The operation is cumbersome, which affects work efficiency. Summary of the invention

[0004] In order to overcome the shortcomings that each welding process requires manual turning over and manual manipulation of fixtures, which is cumbersome and affects work efficiency, the present invention provides a positioning mechanism for frame component processing and welding.

[0005] The technical implementation scheme of the present invention is: a positioning mechanism for processing and welding frame parts, including a mounting table, a rotating block, a cross guide rail, a placement block, a spring, a positioning block, an electric push rod, a sliding frame, a clamping block, a welding mechanism and a rotating mechanism. The top of the mounting table is rotatably connected with a rotating block, the top of the rotating block is connected with a cross guide rail, and the top of the cross guide rail is slidably connected with four placement blocks for placing frame parts, a spring is connected between the placement block and the cross guide rail, the top of the placement block is connected with a positioning block, four electric push rods are connected to the rotating block, four sliding frames are slidably connected to the cross guide rail, the telescopic rod of the electric push rod is connected to the sliding frame, and the sliding frame is connected with a clamping block, the telescopic rod of the electric push rod drives the clamping block to move, the clamping block and the positioning block clamp the frame parts, and then the clamping block continues to move, driving the frame parts to move, so that the four frame parts form a complete frame, the welding mechanism is used to weld the frame parts, and the rotating mechanism is used to control the rotation of the cross guide rail.

[0006] Furthermore, the welding mechanism includes an electric guide rail, a movable frame, an arc guide rail, an arc plate, a welding gun, a screw, a movable block, an arc rack, a servo motor and a gear 1. The mounting table is connected to the electric guide rail, the top of the slider of the electric guide rail is connected to the movable frame, two arc guide rails are connected to the movable frame, the two arc guide rails are slidably connected to an arc plate, the top of the arc plate is slidably connected to a welding gun for welding frame parts, the top of the arc plate is rotatably connected to a screw, the screw is threadedly connected to a movable block, the movable block is connected to the welding gun, the arc plate is connected to an arc rack, one of the arc guide rails is connected to two servo motors, the output shafts of the servo motors are connected to gear 1, and gear 1 is meshed with the arc rack.

[0007] Furthermore, the rotating mechanism includes a stepper motor and a second gear. The mounting platform is connected to the stepper motor. The output shaft of the stepper motor and the rotating block are both connected to the second gear. The two second gears are meshed.

[0008] Furthermore, it also includes a conveying mechanism, which includes a frame and a conveyor belt. The mounting table is connected to the frame, and the top of the frame is installed with a conveyor belt for conveying frame components to the placement block.

[0009] Furthermore, it also includes a limiting mechanism, which includes a slide plate, two springs, a guide rod, a limiting plate, a two-way screw, a lifting assembly and a guide assembly. The slide plate is slidably connected to the frame, and two springs are connected between the slide plate and the frame. Two guide rods are connected to the front and rear sides of the slide plate. The two guide rods on the front side are slidably connected to the limiting plate, and the two guide rods on the rear side are also slidably connected to the limiting plate. The slide plate is rotatably connected to a two-way screw, and the two-way screw and the limiting plate are threadedly connected. The lifting assembly is used to lift the limiting plate so that the limiting plate no longer blocks the positioning block, and the guide assembly is used to guide the frame components so that the frame components can fall smoothly onto the placement block.

[0010] Furthermore, the lifting assembly includes a contact rod and a cam. The contact rod is connected to the limit plate. The front and rear ends of the driven shaft of the conveyor belt are connected to the cam. The cam is in contact with the contact rod. The cam rotates and disengages from the contact rod. The limit plate moves upward under the action of spring 2 to lift the limit plate.

[0011] Furthermore, the guide assembly includes a slide bar and a stop bar. The two limit plates are slidably connected to the slide bar, and the stop bar is connected to the slide bar. When the frame parts fall from the conveyor belt, the stop bar blocks the frame parts and guides the frame parts.

[0012] Furthermore, it also includes a guide rod, and four guide rods for guiding the placement block are connected to the cross-shaped guide rail, and the guide rod and the placement block are slidably connected.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention can clamp and position the frame parts through the clamping block and the positioning block, and can weld the frame parts through the welding gun. The output shaft of the servo motor can drive the welding gun to rotate, so that the welding gun is aimed at the external gap between two adjacent frame parts. In this way, the top, outside, bottom and inside of the frame parts can be welded, and there is no need to turn over the frame parts, which makes the operation more convenient, thereby improving work efficiency.

[0014] 2. The frame parts can be conveyed to the left by the conveyor belt and transported to the placement block for automatic loading, thereby further improving work efficiency. The limit plate can limit the frame parts to avoid deviation of the frame parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0016] Figure 2 A partial three-dimensional structural schematic diagram of the present invention is shown.

[0017] Figure 3 A three-dimensional structural schematic diagram of the welding mechanism of the present invention is shown.

[0018] Figure 4 A three-dimensional structural schematic diagram of the arc rack, servo motor and gear 1 of the present invention is shown.

[0019] Figure 5 A three-dimensional structural schematic diagram of the rotating mechanism of the present invention is shown.

[0020] Figure 6 A three-dimensional structural schematic diagram of the conveying mechanism of the present invention is shown.

[0021] Figure 7 A three-dimensional structural schematic diagram of the limiting mechanism of the present invention is shown.

[0022] Figure 8 A partial three-dimensional structural schematic diagram of the limiting mechanism of the present invention is shown.

[0023] Fig. 9 The three-dimensional structural schematic diagram of the contact rod, cam, slide rod and stop rod of the present invention is shown.

[0024] The names and serial numbers of the parts in the figure are: 1. Mounting table, 2. Rotating block, 3. Cross guide rail, 4. Placement block, 5. Spring 1, 6. Positioning block, 7. Electric push rod, 8. Sliding frame, 9. Clamp block, 10. Electric guide rail, 11. Moving frame, 12. Arc guide rail, 13. Arc plate, 14. Welding gun, 15. Screw, 16. Moving block, 17. Arc rack, 18. Servo motor, 19. Gear 1, 20. Stepper motor, 21. Gear 2, 22. Frame, 23. Conveyor belt, 24. Slide plate, 25. Spring 2, 26. Guide rod, 27. Limit plate, 28. Bidirectional screw rod, 29. Contact rod, 30. Cam, 31. Sliding rod, 32. Stop rod, 33. Guide rod. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Embodiment 1: Figure 1-Figure 5As shown, a positioning mechanism for processing and welding of frame parts includes a mounting table 1, a rotating block 2, a cross guide rail 3, a placement block 4, a spring 5, a positioning block 6, an electric push rod 7, a sliding frame 8, a clamping block 9, a welding mechanism and a rotating mechanism. The top of the mounting table 1 is rotatably connected to the rotating block 2, the top of the rotating block 2 is connected to the cross guide rail 3, the top of the cross guide rail 3 is slidably connected to the placement blocks 4 on both the left and right sides and the front and back sides, a spring 5 is connected between the placement block 4 and the cross guide rail 3, the top of the placement block 4 is connected to the positioning blocks 6, the left and right sides and the front and back sides of the rotating block 2 are connected to the electric push rod 7, the left and right sides and the front and back sides of the cross guide 3 are slidably connected to the sliding frame 8, the telescopic rod of the electric push rod 7 is connected to the sliding frame 8, and the sides of the four sliding frames 8 close to each other are connected to the clamping block 9, the welding mechanism is used to weld the frame parts, and the rotating mechanism is used to control the rotation of the cross guide rail 3.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, the welding mechanism includes an electric guide rail 10, a moving frame 11, an arc-shaped guide rail 12, an arc-shaped plate 13, a welding gun 14, a screw 15, a moving block 16, an arc-shaped rack 17, a servo motor 18 and a gear 19. The left rear side of the mounting platform 1 is connected to the electric guide rail 10, the top of the slider of the electric guide rail 10 is connected to the moving frame 11, and the front side of the moving frame 11 is connected to two arc-shaped guide rails 12. The two arc-shaped guide rails 12 are symmetrically arranged front and back, and the two arc-shaped guide rails 12 have a common An arc plate 13 is slidably connected, a welding gun 14 is slidably connected to the top of the arc plate 13, a screw rod 15 is rotatably connected to the top of the arc plate 13, a moving block 16 is threadedly connected to the screw rod 15, the moving block 16 is connected to the welding gun 14, an arc plate 13 is connected to an arc rack 17, a servo motor 18 is connected to the upper and lower sides of the rear side of the arc guide rail 12 on the rear side, a gear 19 is connected to the output shaft of the servo motor 18, and the gear 19 is meshed with the arc rack 17.

[0028] like Figure 5 As shown, the rotating mechanism includes a stepper motor 20 and a gear 21. The upper front portion of the mounting platform 1 is connected to the stepper motor 20. The output shaft of the stepper motor 20 and the lower portion of the rotating block 2 are both connected to the gear 21. The two gears 21 are meshed.

[0029] like Figure 2 As shown, it also includes a guide rod 33. The left and right sides and the front and rear sides of the bottom of the cross-shaped guide rail 3 are connected with the guide rod 33. The guide rod 33 is slidably connected to the placement block 4, and a spring 5 is sleeved on the guide rod 33.

[0030] The four frame parts will also move in the direction close to each other, and the four frame parts will be formed into a complete frame, and the electric guide rail 10 will be started to move the moving frame 11 in the direction close to the frame parts, and the moving frame 11 will drive the welding gun 14 to move in the direction close to the frame parts, and the screw 15 will be turned to drive the moving block 16 and the welding gun 14 to move downward, so that the welding gun 14 will contact the gap at the top between the two adjacent frame parts, and the welding gun 14 will weld the frame parts. , the screw rod 15 is rotated in the opposite direction, driving the moving block 16 and the welding gun 14 to move upward, so that the welding gun 14 is out of contact with the gap at the top between the two adjacent frame parts, and the output shaft of the servo motor 18 is controlled to rotate, driving the gear 19 to rotate, the gear 19 drives the arc rack 17 to rotate, the arc rack 17 drives the arc plate 13 to rotate, and the arc plate 13 drives the welding gun 14 to rotate, so that the welding gun 14 is aligned with the external gap between the two adjacent frame parts. Repeat this operation, the top, outside, bottom and inside of the frame parts can be welded, and there is no need to turn over the frame parts, which is more convenient to operate, thereby improving work efficiency. After the welding of one corner of the frame is completed, the electric guide rail 10 is started to move the moving frame 11 in the direction away from the frame parts, and the moving frame 11 drives the welding gun 14 to move in the direction away from the frame parts, and the output shaft of the stepping motor 20 is controlled to rotate, and the rotating block 2 is driven to rotate through the gear 21, and the rotating block 2 drives the cross guide rail 3 to rotate, thereby driving the frame to rotate, and the other three corners of the frame are welded.

[0031] Embodiment 2: Based on Embodiment 1, Figure 6 As shown, a conveying mechanism is also included, which includes a frame 22 and a conveyor belt 23. The frame 22 is connected to the right side of the mounting platform 1, and the conveyor belt 23 is installed on the top of the frame 22.

[0032] like Figure 7-Figure 9As shown, it also includes a limiting mechanism, which includes a slide plate 24, a spring 25, a guide rod 26, a limiting plate 27, a bidirectional screw rod 28, a lifting assembly and a guide assembly. The slide plate 24 is slidably connected to the upper right part of the frame 22, and two springs 25 are connected between the bottom of the slide plate 24 and the frame 22. Two guide rods 26 are connected to the front and rear sides of the slide plate 24. The two guide rods 26 on the front side are slidably connected to the limiting plate 27, and the two guide rods 26 on the rear side are also slidably connected to the limiting plate 27. The left side of the slide plate 24 is rotatably connected to the bidirectional screw rod 28, and the bidirectional screw rod 28 and the limiting plate 27 are threadedly connected. The lifting assembly is used to lift the limiting plate 27 so that the limiting plate 27 no longer blocks the positioning block 6, and the guide assembly is used to guide the frame parts so that the frame parts can fall smoothly onto the placement block 4.

[0033] like Fig. 9 As shown, the lifting assembly includes a contact rod 29 and a cam 30. The contact rod 29 is connected to the sides of the two limit plates 27 that are close to each other. The front and rear ends of the driven shaft of the conveyor belt 23 are connected to the cam 30, and the cam 30 is in contact with the contact rod 29.

[0034] like Figure 7 and Fig. 9 As shown, the guide assembly includes a slide bar 31 and a stop bar 32 . The slide bar 31 is slidably connected to the two limit plates 27 , and the stop bar 32 is connected to the middle of the bottom of the slide bar 31 .

[0035] Initially, the cam 30 presses the contact rod 29, the bottom of the limit plate 27 is flush with the top of the placement block 4, the spring 25 is in a compressed state, and the frame parts are transferred to the conveyor belt 23. The conveyor belt 23 runs intermittently, and the conveyor belt 23 runs once, the cam 30 rotates one circle, and the conveyor belt 23 conveys the frame parts to the left. The limit plate 27 can limit the frame parts to prevent the frame parts from deviating. Then the frame parts will fall on the placement block 4, and the stop rod 32 can block the frame parts, and the stop rod 32 can guide the frame parts. The two ends of the frame parts are inclined surfaces, and the inclined surfaces on two adjacent frame parts contact each other to form an L-shaped frame, so the four frame parts can form a complete frame, and the blocking rod 32 guides the frame parts to avoid the change of the direction of the inclined surfaces on the frame parts. The bottom of the limiting plate 27 is flush with the top of the placement block 4, so after the frame parts fall on the placement block 4, the limiting plate 27 can still limit the frame parts, and the conveyor belt 23 continues to run. The driven shaft of the conveyor belt 23 drives the cam 30 to rotate, and the cam The wheel 30 is out of contact with the contact rod 29, and the cam 30 no longer presses the contact rod 29. Under the action of the spring 25, the slide plate 24 moves upward, and the slide plate 24 drives the limit plate 27 to move upward, raising the limit plate 27 so that the limit plate 27 no longer blocks the positioning block 6. At this time, the output shaft of the stepper motor 20 rotates, driving the cross-shaped guide rail 3 to rotate, thereby driving the placement block 4 to rotate, turning away the placement block 4 with the frame parts, and rotating the next placement block 4 to be close to the conveyor belt 23. The cam 30 continues to rotate, and the cam 30 will push the contact rod 29 downward. The contact rod 29 drives the limit plate 27 to move downward. After the cam 30 rotates one circle, the limit plate 27 stops moving downward. The frame parts on the conveyor belt 23 fall onto the placement block 4, and this reciprocating process can automatically load the materials, thereby further improving the work efficiency. By rotating the bidirectional screw rod 28, the two limit plates 27 can be driven to move toward or away from each other, and the distance between the two limit plates 27 can be adjusted according to the length of the frame parts to adapt to frame parts of different lengths.

[0036] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A positioning mechanism for frame parts processing and welding, comprising a mounting table (1), characterized in that: The mounting platform (1) further comprises a rotating block (2), a cross-shaped guide rail (3), a placement block (4), a spring (5), a positioning block (6), an electric push rod (7), a sliding frame (8), a clamping block (9), a welding mechanism and a rotating mechanism. The top of the mounting platform (1) is rotatably connected to the rotating block (2). The top of the rotating block (2) is connected to the cross-shaped guide rail (3). The top of the cross-shaped guide rail (3) is slidably connected to four placement blocks (4) for placing frame parts. A spring (5) is connected between the placement block (4) and the cross-shaped guide rail (3). The tops of the placement blocks (4) are all connected to the positioning blocks (6). The rotating block (2 ) are connected to four electric push rods (7), four sliding frames (8) are slidably connected to the cross-shaped guide rail (3), the telescopic rods of the electric push rods (7) are connected to the sliding frames (8), and the sliding frames (8) are connected to clamping blocks (9), the telescopic rods of the electric push rods (7) drive the clamping blocks (9) to move, and the clamping blocks (9) and the positioning blocks (6) clamp the frame parts, and then the clamping blocks (9) continue to move, driving the frame parts to move, so that the four frame parts form a complete frame, the welding mechanism is used to weld the frame parts, and the rotating mechanism is used to control the rotation of the cross-shaped guide rail (3); The welding mechanism comprises an electric guide rail (10), a movable frame (11), an arc guide rail (12), an arc plate (13), a welding gun (14), a screw rod (15), a movable block (16), an arc rack (17), a servo motor (18) and a gear 1 (19). The mounting platform (1) is connected to the electric guide rail (10), the top of the slider of the electric guide rail (10) is connected to the movable frame (11), the movable frame (11) is connected to two arc guide rails (12), the two arc guide rails (12) are slidably connected to the arc plate (13), and the arc rack (17) is connected to the movable frame (11). A welding gun (14) for welding frame parts is slidably connected to the top of the plate (13); a screw rod (15) is rotatably connected to the top of the arc plate (13); a moving block (16) is threadedly connected to the screw rod (15); the moving block (16) is connected to the welding gun (14); an arc-shaped rack (17) is connected to the arc plate (13); two servo motors (18) are connected to one of the arc-shaped guide rails (12); a gear one (19) is connected to the output shaft of the servo motor (18); the gear one (19) and the arc-shaped rack (17) are meshed; It also includes a conveying mechanism, which includes a frame (22) and a conveyor belt (23); the mounting platform (1) is connected to the frame (22); and the top of the frame (22) is installed with a conveyor belt (23) for conveying frame parts to the placement block (4); The invention also comprises a limiting mechanism, which comprises a slide plate (24), a second spring (25), a guide rod (26), a limiting plate (27), a bidirectional screw rod (28), a lifting assembly and a guiding assembly. The slide plate (24) is slidably connected to the frame (22), a second spring (25) is connected between the slide plate (24) and the frame (22), two guide rods (26) are connected to the front and rear sides of the slide plate (24), the two guide rods (26) on the front side are slidably connected to the limiting plate (27), and the two guide rods (26) on the rear side are also slidably connected to the limiting plate (27), the slide plate (24) is rotatably connected to the bidirectional screw rod (28), the bidirectional screw rod (28) and the limiting plate (27) are connected by threads, the lifting assembly is used to lift the limiting plate (27) so that the limiting plate (27) no longer blocks the positioning block (6), and the guiding assembly is used to guide the frame parts so that the frame parts can smoothly fall onto the placement block (4).

2. A positioning mechanism for frame parts processing and welding according to claim 1, characterized in that: The rotating mechanism comprises a stepping motor (20) and a second gear (21); the mounting platform (1) is connected to the stepping motor (20); the output shaft of the stepping motor (20) and the rotating block (2) are both connected to the second gear (21); the two second gears (21) are meshed.

3. A positioning mechanism for frame parts processing and welding according to claim 2, characterized in that: The lifting assembly comprises a contact rod (29) and a cam (30). The contact rod (29) is connected to the limit plate (27). The front and rear ends of the driven shaft of the conveyor belt (23) are connected to the cam (30). The cam (30) is in contact with the contact rod (29). The cam (30) rotates to disengage from the contact rod (29). The limit plate (27) moves upward under the action of the second spring (25), thereby lifting the limit plate (27).

4. A positioning mechanism for frame parts processing and welding according to claim 3, characterized in that: The guide assembly comprises a slide bar (31) and a stop bar (32); the two limit plates (27) are slidably connected to the slide bar (31); the slide bar (31) is connected to the stop bar (32); when the frame parts fall from the conveyor belt (23), the stop bar (32) stops the frame parts and guides the frame parts.

5. A positioning mechanism for frame parts processing and welding according to claim 1, characterized in that: It also includes guide rods (33). Four guide rods (33) for guiding the placement blocks (4) are connected to the cross-shaped guide rail (3). The guide rods (33) and the placement blocks (4) are slidably connected.

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