A positioning mechanism for welding processing of automobile parts

Abstract

The present invention relates to the technical field of automobile parts welding, and provides a positioning mechanism for automobile parts welding processing, including a workbench and a servo motor; a servo motor is installed at the middle position of the bottom end of the workbench, a stop block is fixed to one side of the top end of the workbench, a guide ring is provided inside the top end of the workbench, a guide column is installed inside the guide ring, a positioning plate is fixed to the top end of the guide column, and the output end of the servo motor is fixed to the bottom end of the positioning plate through a connecting shaft. The present invention can lift up the top block before welding the metal frame of the seat through the coordinated use of a movable block, a telescopic spring and a stop block, so that it is more convenient to place the metal frame of the seat, and the setting of the positioning pin makes the placement of the metal frame of the seat more accurate, and two groups of top blocks are provided, which can achieve the effect of one group welding and one group feeding, thereby improving the efficiency of welding.

Description

Technical Field

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

[0002] Auto parts are an integral part of the vehicle, and they work together to enable the vehicle to operate safely and efficiently. There are many types of auto parts, ranging from basic engine components to complex electronic systems and safety equipment, covering all structures of the vehicle from the inside to the outside. When processing auto parts, there is a step to weld the metal frame in the car seat. When welding, a positioning mechanism for welding processing is needed. However, there are still some problems when using traditional positioning mechanisms for welding processing.

[0003] When welding the seat metal frame, the traditional positioning mechanism for welding processing needs to first place the seat metal frame into the positioning groove, and then clamp the seat metal frame. After welding is completed, the clamping mechanism needs to be opened first, and then the seat metal frame is taken out. This results in more steps when welding the seat metal frame and low work efficiency. Therefore, a positioning mechanism for automobile parts welding processing is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a positioning mechanism for welding processing of automobile parts, so as to solve the defects of the existing positioning mechanism for welding processing of automobile parts, which has many steps and low working efficiency when positioning and welding the metal frame of the seat.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a positioning mechanism for welding processing of automobile parts, comprising a workbench and a servo motor; a servo motor is installed at the middle position of the bottom end of the workbench, a stop block is fixed to one side of the top end of the workbench, a guide ring is provided inside the top end of the workbench, a guide column is installed inside the guide ring, a positioning plate is fixed to the top end of the guide column, and the output end of the servo motor is fixed to the bottom end of the positioning plate through a connecting shaft; positioning grooves are provided inside both sides of the top end of the positioning plate, a top block is installed inside the positioning groove, a movable block is welded to the bottom end of the top block, a telescopic spring is installed on the outside of the movable block, the bottom end of the telescopic spring is fixed to the bottom end of the movable block, and the top end is fixed to the bottom end of the positioning plate, a positioning pin is installed at the top end of the top block, a seat metal frame is placed on the top end of the top block, and a positioning component is arranged inside the positioning groove.

[0006] Preferably, the positioning assembly includes a fixed clamping structure, a movable groove, an installation groove, a positioning clamping mechanism, a movable sleeve, a fixed disk and a connecting plate. The movable groove is opened at both ends inside the positioning groove. The interior of the movable groove is provided with a fixed clamping structure. The fixed clamping structure includes a fixed clamping head, a guide sleeve, a fixed plate, a guide groove, a guide rod, an airbag, a piston, a cylinder, a corrugated air pipe and a movable column. The fixed plate is fixed inside the movable groove, and the top of the installation groove is fixed with a guide sleeve.

[0007] Preferably, a guide groove is provided on the outer side of the guide sleeve, a guide rod is inserted into the guide groove, a movable column is installed inside the guide sleeve, one end of the guide rod is fixed to the outer side of the movable column, a fixed clamping head is fixed to the top end of the movable column, and an airbag is bonded to the bottom of one end of the fixed clamping head.

[0008] Preferably, a fixed plate is fixed to the outer side of the bottom end of the movable column, and a movable sleeve is sleeved at the middle position of the two groups of fixed plates on the outer side of the bottom end of the movable column, a connecting plate is fixed to one end of the movable sleeve, one end of the connecting plate is fixed to one end of the top block, a cylinder is installed at the bottom end of the connecting plate, a piston is arranged inside the cylinder, the top end of the piston is fixed to the bottom end of the connecting plate, a corrugated air pipe is installed on one side of the piston, and one end of the corrugated air pipe is connected to one side of the airbag.

[0009] Preferably, the inner diameter of the movable sleeve is larger than the outer diameter of the movable column, and a movable connection is formed between the movable sleeve and the movable column.

[0010] Preferably, two groups of the fixed clamping heads are provided, and the two groups of the fixed clamping heads are symmetrically distributed at two ends inside the positioning groove.

[0011] Preferably, the installation groove is opened on both sides of the positioning groove, and a positioning clamping mechanism is arranged inside the installation groove. The positioning clamping mechanism includes a reset spring, a positioning clamping block, a movable rod and an extrusion block. The movable rod is fixed inside the installation groove, and a positioning clamping block is sleeved on the outer side of the movable rod.

[0012] Preferably, a return spring is fixed to one end of the positioning clamping block, and one end of the return spring is fixed to one side of the mounting groove, and the extrusion block is fixed to both sides of the top block.

[0013] Preferably, the positioning clamping block is sleeved on the outer side of the movable rod, and the positioning clamping block is movably connected to the movable rod.

[0014] Preferably, two groups of positioning and clamping blocks are provided, and the two groups of positioning and clamping blocks are symmetrically distributed on both sides of the top block.

[0015] The positioning mechanism for welding processing of automobile parts provided by the present invention has the following advantages:

[0016] Through the coordinated use of the movable block, the telescopic spring and the stop block, the top block can be lifted up before welding the metal frame of the seat, making it more convenient to place the metal frame of the seat, and the setting of the positioning pin makes the placement of the metal frame of the seat more accurate, and there are two groups of top blocks, which can achieve the effect of one group welding and one group loading, thereby improving the welding efficiency;

[0017] By using the reset spring and the movable rod in coordination, when the movable block is separated from the top of the abutment block, the telescopic spring will drive the top block to move downward. When the top block moves downward, the bottom end of the positioning clamping block will be pressed downward by the extrusion block, so that the positioning clamping block cooperates with the movable rod so that the top end of the positioning clamping block abuts against one side of the metal frame of the seat. By using two sets of positioning clamping blocks, the metal frame of the seat is positioned and clamped, so that the metal frame will not deviate inside the positioning groove.

[0018] Furthermore, when the top block moves downward, the connection plate and the movable sleeve cooperate to drive the fixed clamping head to move downward. When the fixed clamping head moves, it is guided by the guide groove to rotate on the way downward, so that one end of the fixed clamping head is pressed on the top of the seat metal frame, and the seat metal frame is fixedly clamped, so that the seat metal frame will not move around during welding. In addition, the use of the airbag during fixed clamping can play a protective role, so that the bottom end of one end of the fixed clamping head will not cause damage to the surface when it is fixed to the top of the seat metal frame, thereby completing the fixed clamping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view three-dimensional structure schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the front view three-dimensional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above;

[0022] Figure 4 It is a schematic diagram of a three-dimensional structure of a top view cross section of the present invention;

[0023] Figure 5 It is a schematic diagram of the front cross-sectional three-dimensional structure of the present invention;

[0024] Figure 6 For the present invention Figure 5 The three-dimensional structure diagram is enlarged at B in the middle;

[0025] Figure 7It is a schematic diagram of the three-dimensional structure of the positioning and clamping mechanism of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning and holding mechanism of the present invention from a side view;

[0027] Fig. 9 For the present invention Figure 4 A is a partial enlarged schematic diagram of the three-dimensional structure;

[0028] Fig.10 It is a schematic diagram of a partial three-dimensional structure of the fixed clamping structure of the present invention from a side view;

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the fixed clamping structure of the present invention;

[0030] Fig.12 It is a schematic diagram of the exploded structure of the fixed clamping structure of the present invention.

[0031] Explanation of the reference numerals in the figure: 1. workbench; 2. servo motor; 3. stop block; 4. positioning plate; 5. metal frame of seat; 6. positioning pin; 7. positioning assembly; 71. fixed clamping structure; 711. fixed clamping head; 712. guide sleeve; 713. fixed plate; 714. guide groove; 715. guide rod; 716. air bag; 717. piston; 718. cylinder; 719. corrugated air pipe; 7110. movable column; 72. movable groove; 73. mounting groove; 74. positioning clamping mechanism; 741. return spring; 742. positioning clamping block; 743. movable rod; 744. extrusion block; 75. movable sleeve; 76. fixed disk; 77. connecting plate; 8. movable block; 9. telescopic spring; 10. guide column; 11. guide ring; 12. top block; 13. positioning groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 12The present invention provides a positioning mechanism for welding processing of automobile parts, comprising a workbench 1 and a servo motor 2; the servo motor 2 is installed at the middle position of the bottom end of the workbench 1, a stop block 3 is fixed to one side of the top end of the workbench 1, a guide ring 11 is provided inside the top end of the workbench 1, a guide column 10 is installed inside the guide ring 11, a positioning plate 4 is fixed to the top end of the guide column 10, and the output end of the servo motor 2 is fixed to the bottom end of the positioning plate 4 through a connecting shaft; positioning grooves 13 are provided inside the top ends of the positioning plate 4, a top block 12 is installed inside the positioning groove 13, a movable block 8 is welded to the bottom end of the top block 12, a telescopic spring 9 is installed on the outside of the movable block 8, the bottom end of the telescopic spring 9 is fixed to the bottom end of the movable block 8, and the top end is fixed to the bottom end of the positioning plate 4, a positioning pin 6 is installed on the top end of the top block 12, a seat metal frame 5 is placed on the top end of the top block 12, and a positioning component 7 is arranged inside the positioning groove 13.

[0034] Reference Figure 1 and Fig.12 As shown: the mounting groove 73 is opened on both sides of the positioning groove 13, and a positioning clamping mechanism 74 is arranged inside the mounting groove 73. The positioning clamping mechanism 74 includes a reset spring 741, a positioning clamping block 742, a movable rod 743 and an extrusion block 744. The movable rod 743 is fixed inside the mounting groove 73, and a positioning clamping block 742 is sleeved on the outer side of the movable rod 743. A reset spring 741 is fixed to one end of the positioning clamping block 742, and one end of the reset spring 741 is fixed to one side of the mounting groove 73. The extrusion block 744 is fixed to both sides of the top block 12. The positioning clamping block 742 is sleeved on the outer side of the movable rod 743. The positioning clamping block 742 is movably connected to the movable rod 743. Two groups of positioning clamping blocks 742 are arranged, and the two groups of positioning clamping blocks 742 are symmetrically distributed on both sides of the top block 12.

[0035] Specifically, in this embodiment, when welding the seat metal frame 5, the seat metal frame 5 is first placed according to the position of the positioning pin 6. After the placement is completed, the external power supply starts the servo motor 2 to rotate, and the positioning plate 4 is controlled to rotate 180 degrees through the control box next to it. When the positioning plate 4 is rotating, the movable block 8 will fall off from the top of the stop block 3. At this time, under the gravity of the top block 12 itself and the pull of the telescopic spring 9, the top block 12 will move downward inside the positioning groove 13, so that the seat metal frame 5 falls into the inside of the positioning groove 13 to initially limit the seat metal frame 5. When the top block 12 moves downward, the extrusion block 744 will also be driven to move downward. As the extrusion block 744 moves, when the extrusion block 744 contacts the bottom end of the positioning clamping block 742, it will squeeze its bottom end to move to one side, and through cooperation with the movable rod 743, through the principle of lever, the top end of the positioning clamping block 742 moves to the other side and sticks to one side of the seat metal frame 5. By using two sets of positioning clamping blocks 742, the seat metal frame 5 is positioned and clamped, so that the welding position of the seat metal frame 5 will not be offset, affecting the welding work.

[0036] Reference Figure 1 and Fig.12As shown: the positioning assembly 7 includes a fixed clamping structure 71, a movable groove 72, a mounting groove 73, a positioning clamping mechanism 74, a movable sleeve 75, a fixed plate 76 and a connecting plate 77. The movable groove 72 is opened at both ends of the interior of the positioning groove 13. The interior of the movable groove 72 is provided with a fixed clamping structure 71. The fixed clamping structure 71 includes a fixed clamping head 711, a guide sleeve 712, a fixed plate 713, a guide groove 714, a guide rod 715, an air bag 716, a piston 717, a cylinder 718, a corrugated air pipe 719 and a movable column 7110. The fixed plate 713 is fixed to the interior of the movable groove 72. The top of the mounting groove 73 is fixed with a guide sleeve 712. The outer side of the guide sleeve 712 is provided with a guide groove 714. The guide groove 714 is inserted with a guide rod 715. The interior of the guide sleeve 712 is provided with a movable column 7110. One end of the guide rod 715 is fixed to the outer side of the movable column 7110. The top of the movable column 7110 A fixed clamping head 711 is fixed, and an air bag 716 is bonded to the bottom of one end of the fixed clamping head 711. A fixed plate 76 is fixed to the outer side of the bottom end of the movable column 7110. A movable sleeve 75 is sleeved at the middle position of the two sets of fixed plates 76 on the outer side of the bottom end of the movable column 7110. A connecting plate 77 is fixed to one end of the connecting plate 77. One end of the connecting plate 77 is fixed to one end of the top block 12. A cylinder 718 is installed at the bottom end of the connecting plate 77. The interior of the cylinder 718 is provided with a movable sleeve 75. Plug 717, the top end of the piston 717 is fixed to the bottom end of the connecting plate 77, a corrugated air tube 719 is installed on one side of the piston 717, one end of the corrugated air tube 719 is connected to one side of the airbag 716, the inner diameter of the movable sleeve 75 is larger than the outer diameter of the movable column 7110, and a movable connection is formed between the movable sleeve 75 and the movable column 7110, and two groups of fixed clamping heads 711 are provided, and the two groups of fixed clamping heads 711 are symmetrically distributed at both ends of the positioning groove 13.

[0037] Specifically, in the present embodiment, when the top block 12 moves downward, the movable column 7110 will be driven to move downward through the cooperation of the connecting plate 77 and the movable sleeve 75. Since the fixed plate 76 is fixed to the outer side of the bottom end of the movable column 7110, and the movable sleeve 75 is sleeved on the outer side of the movable column 7110 in the middle position of the two sets of fixed plates 76, the movable column 7110 can rotate. When the movable sleeve 75 drives the movable column 7110 to move downward, the movable column 7110 will be guided by the guide groove 714 and cooperate with the guide rod 715 to fix the clamping head 7110. 11 is rotated downward, so that the bottom of one end of the fixed clamping head 711 is pressed on the top of the seat metal frame 5 to fix it, and the connecting plate 77 squeezes the piston 717 to move inside the cylinder 718 when it moves downward, so that the squeezing gas is squeezed into the inside of the air bag 716 through the corrugated air pipe 719, so that when the bottom of one end of the fixed clamping head 711 fixes and clamps the seat metal frame 5, it will not cause damage to the surface of the seat metal frame 5, thereby completing the positioning and fixing of the seat metal frame 5, making the seat metal frame 5 more stable during welding;

[0038] By using two groups of top blocks 12, the effect of welding and loading at the same time can be achieved, making the welding more efficient, and by using the movable block 8 and the stop block 3 in combination, the seat metal frame 5 can be automatically positioned and clamped by the positioning assembly 7 when the movable block 8 is separated from the top of the stop block 3. When the seat metal frame 5 is welded and rotated to the top of the stop block 3, the movable block 8 will lift the top block 12 again. When the top block 12 drives the seat metal frame 5 to be lifted up, the fixed clamping structure 71 and the positioning clamping mechanism 74 will automatically stop the positioning clamping and return to their original positions. There is no need to manually open the clamping, which saves operation time. After the seat metal frame 5 is ejected, it is also convenient for the staff to remove the seat metal frame 5 and replace the next seat metal frame 5, thereby completing the welding positioning work of the seat metal frame 5, making it more efficient and faster when welding the seat metal frame 5.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning mechanism for welding automobile parts, comprising a workbench (1) and a servo motor (2); Features: A servo motor (2) is installed at the middle position of the bottom end of the workbench (1), a stop block (3) is fixed to one side of the top end of the workbench (1), a guide ring (11) is provided inside the top end of the workbench (1), a guide column (10) is installed inside the guide ring (11), a positioning plate (4) is fixed to the top end of the guide column (10), and the output end of the servo motor (2) is fixed to the bottom end of the positioning plate (4) via a connecting shaft; Positioning grooves (13) are provided inside the two sides of the top of the positioning plate (4), a top block (12) is installed inside the positioning groove (13), a movable block (8) is welded to the bottom of the top block (12), a telescopic spring (9) is installed on the outside of the movable block (8), the bottom end of the telescopic spring (9) is fixed to the bottom end of the movable block (8), and the top end is fixed to the bottom end of the positioning plate (4), a positioning pin (6) is installed on the top of the top block (12), a seat metal frame (5) is placed on the top of the top block (12), and a positioning assembly (7) is arranged inside the positioning groove (13), when the positioning plate (4) rotates, the movable block (8) will fall off from the top of the stop block (3), and at this time, under the weight of the top block (12) itself and the pull of the telescopic spring (9), the top block (12) will move downward inside the positioning groove (13); The positioning assembly (7) comprises a fixed clamping structure (71), a movable groove (72), a mounting groove (73), a positioning clamping mechanism (74), a movable sleeve (75), a fixed plate (76) and a connecting plate (77); the movable groove (72) is provided at both ends of the interior of the positioning groove (13); a fixed clamping structure (71) is provided inside the movable groove (72); the fixed clamping structure (71) comprises a fixed clamping head (711), a guide sleeve (712), a fixed plate (713), a guide groove ( The fixing plate (713) is fixed to the inside of the movable groove (72); a guide sleeve (712) is fixed to the top of the mounting groove (73); a guide groove (714) is formed on the outside of the guide sleeve (712); a guide rod (715) is inserted into the inside of the guide groove (714); and a guide sleeve (712) is installed inside the guide sleeve (712). A movable column (7110) is provided, one end of the guide rod (715) is fixed to the outer side of the movable column (7110), a fixed clamping head (711) is fixed to the top of the movable column (7110), an air bag (716) is bonded to the bottom of one end of the fixed clamping head (711), a fixed plate (76) is fixed to the outer side of the bottom end of the movable column (7110), a movable sleeve (75) is sleeved at the middle position of the two sets of fixed plates (76) on the outer side of the bottom end of the movable column (7110), and the movable sleeve (75) A connecting plate (77) is fixed to one end of the connecting plate (75), one end of the connecting plate (77) is fixed to one end of the top block (12), a cylinder (718) is installed at the bottom end of the connecting plate (77), a piston (717) is arranged inside the cylinder (718), the top end of the piston (717) is fixed to the bottom end of the connecting plate (77), a corrugated air pipe (719) is installed on one side of the piston (717), and one end of the corrugated air pipe (719) is connected to one side of the air bag (716).

2. The positioning mechanism for automobile parts welding processing according to claim 1, characterized in that: The inner diameter of the movable sleeve (75) is greater than the outer diameter of the movable column (7110), and a movable connection is formed between the movable sleeve (75) and the movable column (7110).

3. The positioning mechanism for welding of automobile parts according to claim 1, characterized in that: Two groups of the fixed clamping heads (711) are provided, and the two groups of the fixed clamping heads (711) are symmetrically distributed at two ends inside the positioning groove (13).

4. The positioning mechanism for automobile parts welding processing according to claim 1, characterized in that: The mounting groove (73) is formed on both sides of the positioning groove (13); a positioning clamping mechanism (74) is provided inside the mounting groove (73); the positioning clamping mechanism (74) comprises a return spring (741), a positioning clamping block (742), a movable rod (743) and a squeezing block (744); the movable rod (743) is fixed inside the mounting groove (73); and the outer side of the movable rod (743) is sleeved with the positioning clamping block (742).

5. The positioning mechanism for automobile parts welding processing according to claim 4, characterized in that: A return spring (741) is fixed to one end of the positioning clamping block (742), and one end of the return spring (741) is fixed to one side of the mounting groove (73). The extrusion block (744) is fixed to both sides of the top block (12).

6. A positioning mechanism for automobile parts welding processing according to claim 4, characterized in that: The positioning clamping block (742) is sleeved on the outside of the movable rod (743), and the positioning clamping block (742) and the movable rod (743) are movably connected.

7. A positioning mechanism for automobile parts welding processing according to claim 4, characterized in that: Two groups of the positioning clamping blocks (742) are provided, and the two groups of the positioning clamping blocks (742) are symmetrically distributed on both sides of the top block (12).

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