Automatic positioning welding device for automobile door handle

Abstract

The present invention relates to the technical field of automobile door handle welding, and in particular to an automatic positioning welding device for automobile door handles, comprising a base, a fixing seat fixedly connected to the top of the base, a positioning component arranged on the fixing seat, an adaptive clamping component arranged on the fixing seat, and a positioning auxiliary component arranged on the fixing seat; the present invention can set corresponding positioning placement grooves according to different models of automobile door handles through the positioning component combined with the positioning auxiliary component, thereby realizing the positioning and placement of automobile door handles of different models; combined with the adaptive clamping component, a larger clamping area can be provided for automobile door handles of different shapes, thereby improving the adaptive stable clamping after positioning and placement, and realizing stable welding of automobile door handles of different models after positioning; in addition, after completing the setting of the positioning placement groove, the positioning auxiliary component is simultaneously prompted to move out of the clamping area to avoid interference with the subsequent clamping and fixing of the automobile door handles.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door handle welding, and in particular to an automatic positioning welding device for an automobile door handle. Background Art

[0002] Car door handles are commonly used car accessories. They are connected to the car locks by door lock pull rods and are used to open and close car doors. Door handles have different shapes and colors and are often installed selectively in combination with the car body color and car model. Door handles are vulnerable parts among car body accessories. When opening and closing car doors, you should pay attention to the strength to minimize the damage to the door handles. The door handle welding device is a special welding device for door handles during the processing process.

[0003] However, in order to improve the accuracy of welding the automobile door handles, the existing door handle welding devices generally use fixed placement grooves or clamping components that are closely matched with the shape of the automobile door handles of a specific model. For example, an automatic welding positioning device for door handles with a publication number of CN217433523U in the prior art can ensure accurate welding of automobile door handles, but it is difficult to adapt to the positioning and placement of automobile door handles of various types and shapes. It is necessary to replace the corresponding placement grooves or clamping components to position the door handles, and the operation process is relatively cumbersome and inconvenient.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide an automatic positioning and welding device for automobile door handles to solve the technical defects mentioned above. The present invention, through the positioning component combined with the positioning auxiliary component, can set corresponding positioning and placement grooves according to different models of automobile door handles, thereby realizing the positioning and placement of different models of automobile door handles; combined with the adaptive clamping component, it can provide a larger clamping area for automobile door handles of different shapes, thereby improving the adaptive and stable clamping after positioning and placement, and realizing stable welding of different models of automobile door handles after positioning; in addition, after completing the setting of the positioning and placement groove, the positioning auxiliary component is simultaneously prompted to move out of the clamping area to avoid interference with the subsequent clamping and fixation of the automobile door handles.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An automatic positioning welding device for a car door handle comprises a base, a fixing seat is fixedly connected to the top of the base, and a positioning assembly is arranged on the fixing seat, the positioning assembly comprises mounting grooves densely arranged on the top of the fixing seat, a positioning rod is fixedly connected to the inside of the mounting groove through a spring, and a locking plate for locking the position of the positioning rod is arranged inside the fixing seat;

[0008] The fixing seat is provided with an adaptive clamping assembly, and the adaptive clamping assembly includes clamping seats symmetrically arranged on both sides of the fixing seat, one side of the clamping seat is symmetrically rotatably connected to a semicircular clamping block 1, and one side of the semicircular clamping block 1 is symmetrically rotatably connected to a semicircular clamping block 2;

[0009] The fixing seat is provided with a positioning auxiliary component, and the positioning auxiliary component includes a fixing plate, a U-shaped limiting plate is installed on the fixing plate, and auxiliary clamping plates are symmetrically arranged on the U-shaped limiting plate.

[0010] Preferably, a mounting cavity for sliding connection of a locking plate is provided inside the fixing seat, a locking hole for a corresponding positioning rod to pass through is provided on the locking plate, and a movable groove is provided inside the fixing seat.

[0011] Preferably, a fixed shaft is fixedly connected to the inside of the movable groove, and a gear is rotatably connected to the fixed shaft. Tooth plates meshing with the gears are slidably connected on both sides of the movable groove. A connecting rod is fixedly connected between the locking plate and one of the tooth plates. A connecting groove for the connecting rod to slide is provided between the mounting cavity and the movable groove.

[0012] Preferably, one end of the tooth plate extends to the outside of the fixing seat and is fixedly connected to a connecting block, one side of the fixing seat is fixedly connected to a U-shaped frame, an electric push rod 1 is bolted on the U-shaped frame, and the piston rod end of the electric push rod 1 is bolted to the corresponding connecting block.

[0013] Preferably, a movable plate is fixedly connected to one side of the clamping seat, and a sliding rod fixedly connected to the fixed seat is symmetrically slidably connected to the movable plate, a connecting plate is fixedly connected between the ends of the sliding rod, an electric push rod 2 is bolted to the connecting plate, and the piston rod end of the electric push rod 2 is bolted to the corresponding movable plate.

[0014] Preferably, the two groups of auxiliary splints are fixedly connected to the away sides thereof with two groups of guide rods, and the guide rods are slidably connected to the U-shaped limit plates, a second spring is fixedly connected between the auxiliary splints and the U-shaped limit plates and located on the outside of the corresponding guide rods, and a guide plate is fixedly connected to the side of the auxiliary splints away from the fixed seat.

[0015] Preferably, a U-shaped seat is fixedly connected to the fixed seat just above the connecting block, and the inside of the U-shaped seat is rotatably connected to a flip rod fixedly connected to the corresponding fixed plate, and the flip rod is symmetrically fixedly connected to a support plate, and a linkage rod slidably connected to the corresponding connecting block is fixedly connected between the ends of the support plate.

[0016] Preferably, one side of the U-shaped limiting plate is symmetrically fixedly connected with a slide rail, and two groups of push plates are slidably connected between the slide rails, a push rod is hinged between the push plate and the fixed plate, and a bidirectional screw rod is rotatably connected to the U-shaped limiting plate and threadedly connected to the two groups of push plates.

[0017] Preferably, an electric cylinder slide module Y is fixedly connected to one side of the top of the base, and an L-shaped bracket is bolted on the electric cylinder slide module Y, an electric cylinder slide module X is fixedly connected to the L-shaped bracket, and a mounting plate is bolted on the electric cylinder slide module X, a lifting plate is fixedly installed on the mounting plate through an electric push rod, and a welding machine is bolted on the lifting plate.

[0018] The beneficial effects of the present invention are as follows:

[0019] (1) The present invention first pushes the automobile door handle to squeeze the multiple positioning rods and compress the corresponding springs, forcing the ends of the multiple positioning rods to form a multi-point positioning placement groove with the same shape as the local shape of the automobile door handle, and then drives the locking plate to move through the electric push rod in combination with the toothed plate, forcing one side of the locking hole on the locking plate to abut against the corresponding positioning rod, thereby limiting the position of the multiple positioning rods after movement to maintain the formed multi-point positioning placement groove, and through the multiple positioning rods cooperating with the locking plate, it is possible to set matching positioning placement grooves according to different models of automobile door handles, thereby realizing the positioning and placement of automobile door handles of different models; combined with the adaptive clamping component, it is possible to provide a larger clamping area for automobile door handles of different shapes, thereby improving the stable clamping after positioning and placement, and further realizing the stable welding of automobile door handles of different models after positioning;

[0020] (2) In the process of setting the positioning placement groove, the present invention cooperates with the U-shaped limit plate in combination with two groups of auxiliary clamping plates under the compression elastic force of the spring, so that during the initial placement of the automobile door handle, the automobile door handle can be assisted in centering at the top position of the fixed seat by multi-faceted interference, thereby improving the accuracy of the positioning placement groove position setting; and in the process of using the electric push rod in combination with the tooth plate to drive the locking plate to limit the movement of the positioning rod, the flip rod is simultaneously driven to carry the fixed plate and the U-shaped limit plate to flip to the two sides of the fixed seat, thereby avoiding interference with the subsequent clamping and fixation of the automobile door handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings;

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation of the welding machine of the present invention;

[0024] Figure 3It is a schematic diagram of the cooperation between the fixing seat and the adaptive clamping assembly of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the fixing seat of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the locking plate of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection between the locking plate and the fixing seat of the present invention;

[0028] Figure 7 is a schematic structural diagram of a positioning auxiliary component of the present invention;

[0029] Figure 8 It is a schematic diagram of the disassembly of the positioning auxiliary component and the tooth plate of the present invention.

[0030] Legend:

[0031] 1. Base; 11. Fixed seat; 12. Installation cavity; 13. Movable slot; 14. Gear; 15. Electric cylinder slide module Y; 16. L-shaped bracket; 17. Electric cylinder slide module X; 18. Mounting plate; 19. Electric push rod three; 110. Lifting plate; 111. Welding machine;

[0032] 2. Positioning assembly; 21. Spring 1; 22. Positioning rod; 23. Locking plate; 24. Locking hole; 25. Tooth plate; 26. Connecting rod; 27. Connecting block; 28. U-shaped frame; 29. ​​Electric push rod 1;

[0033] 3. Adaptive clamping assembly; 31. Clamping seat; 32. Semicircular clamping block 1; 33. Semicircular clamping block 2; 34. Movable plate; 35. Sliding rod; 36. Connecting plate; 37. Electric push rod 2;

[0034] 4. Positioning auxiliary component; 41. Fixed plate; 42. U-shaped limit plate; 43. Auxiliary clamp; 44. Guide rod; 45. Spring 2; 46. U-shaped seat; 47. Flip rod; 48. Support plate; 49. Linkage rod; 410. Slide rail; 411. Push plate; 412. Push rod; 413. Bidirectional screw. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1: Please refer to Figure 1-Figure 6As shown, the problem that it is difficult to adapt to the positioning and placement of door handles of various models of cars in the prior art, making the operation process more complicated, can be solved by the following solution:

[0037] In the present embodiment, an automatic positioning welding device for a car door handle comprises a base 1, a fixing seat 11 is fixedly connected to the top of the base 1, and a positioning assembly 2 is arranged on the fixing seat 11, the positioning assembly 2 comprises mounting grooves densely arranged on the top of the fixing seat 11, and a positioning rod 22 is fixedly connected to the inside of the mounting groove through a spring 21, and the corresponding spring 21 is compressed by squeezing a plurality of positioning rods 22 by pushing the car door handle, and an external loading robot arm is used for placement in this process, so as to achieve the purpose of automatic placement and welding, and the ends of the plurality of positioning rods 22 are forced to form a multi-point positioning placement groove with the same local shape as the car door handle;

[0038] Furthermore, it is possible to set corresponding positioning and placement grooves according to different models of automobile door handles to realize the positioning and placement of different models of automobile door handles, thereby avoiding the method of replacing the placement grooves in the prior art to adapt to the positioning and placement of various models of automobile door handles, further expanding the application scope of the device and improving the convenience of positioning and placement;

[0039] A locking plate 23 for locking the position of the positioning rod 22 is arranged inside the fixing seat 11. The locking plate 23 is used to fix the position of the positioning rod 22 after movement to maintain the formed multi-point positioning placement groove, thereby realizing the rapid positioning and placement of multiple subsequent automobile door handles of the same type.

[0040] The fixing seat 11 is provided with an adaptive clamping assembly 3, which includes clamping seats 31 symmetrically arranged on both sides of the fixing seat 11, one side of the clamping seat 31 is symmetrically rotatably connected with a semicircular clamping block 1 32, and one side of the semicircular clamping block 1 32 is symmetrically rotatably connected with a semicircular clamping block 2 33. After the automobile door handle is positioned and placed, through the relative movement of the two groups of clamping seats 31, and with the help of the sliding connection between the plurality of semicircular clamping blocks 2 33 and the semicircular clamping block 1 32, and the sliding connection between the semicircular clamping block 1 32 and the clamping seat 31, each semicircular clamping block 2 33 is caused to contact with the automobile door handle, so as to achieve the purpose of adaptive and stable clamping;

[0041] T-shaped sliders are fixedly connected to the arc-shaped side walls of the semicircular clamp block 1 32 and the semicircular clamp block 2 33, and T-shaped grooves matching the corresponding T-shaped sliders are provided on the arc-shaped side walls of the clamping seat 31 and the semicircular clamp block 1 32, thereby realizing a stable sliding connection between the semicircular clamp block 1 32 and the clamping seat 31, and between the semicircular clamp block 1 32 and the semicircular clamp block 2 33, and limit blocks and limit grooves are respectively provided on the T-shaped slider and the T-shaped groove to avoid separation problems.

[0042] The fixing seat 11 has an installation cavity 12 for sliding connection of the locking plate 23, and the locking plate 23 has a locking hole 24 for the corresponding positioning rod 22 to penetrate. After the locking plate 23 slides to one side in the installation cavity 12, the locking hole 24 contacts the side wall of the corresponding positioning rod 22, thereby limiting the position of the multiple positioning rods 22 after compressing the spring 1 21, so as to maintain the formed multi-point positioning placement groove;

[0043] After the locking plate 23 slides to the other side in the installation cavity 12, the side wall of the locking hole 24 is separated from the corresponding positioning rod 22, releasing the position of the positioning rod 22, and making it convenient to replace the corresponding positioning placement groove according to different models of car door handles. Anti-slip grooves are provided on the side walls of each positioning rod 22, and an anti-slip elastic pad is provided on the inner wall of one side of the locking hole 24 to increase the effect of fixing the position of the positioning rod 22 after the compression spring 21 is pressed, so as to avoid relative sliding and affecting the accuracy of positioning and placement. A movable groove 13 is provided inside the fixing seat 11.

[0044] A fixed shaft is fixedly connected inside the movable groove 13, and a gear 14 is rotatably connected to the fixed shaft. Tooth plates 25 meshing with the gear 14 are slidably connected on both sides of the movable groove 13. A connecting rod 26 is fixedly connected between the locking plate 23 and one of the tooth plates 25. A connecting groove for the connecting rod 26 to slide is provided between the installation cavity 12 and the movable groove 13.

[0045] The toothed plate 25 moves away from the gear 14 and, in combination with the connecting rod 26, drives the locking plate 23 to move in the same direction, so that one side of the locking hole 24 is separated from the corresponding positioning rod 22, thereby releasing the fixation of the positioning rod 22. The toothed plate 25 moves toward the gear 14, driving one side of the locking hole 24 to contact the corresponding positioning rod 22, thereby locking the position of the positioning rod 22 after movement.

[0046] One end of the tooth plate 25 extends to the outside of the fixed seat 11 and is fixedly connected to a connecting block 27. One side of the fixed seat 11 is fixedly connected to a U-shaped frame 28. An electric push rod 29 is bolted to the U-shaped frame 28, and the piston rod end of the electric push rod 29 is bolted to the corresponding connecting block 27. The corresponding tooth plate 25 is pushed to move closer to or away from the gear 14 through the set electric push rod 29, and the other tooth plate 25 moves in the opposite direction through the engagement of the gear 14.

[0047] A movable plate 34 is fixedly connected to one side of the clamping seat 31. The clamping seat 31 is located on the side of the movable plate 34 close to the fixed seat 11, and is used to effectively clamp the car door handle. A sliding rod 35 fixedly connected to the fixed seat 11 is symmetrically slidably connected to the movable plate 34. A connecting plate 36 is fixedly connected between the ends of the sliding rod 35. An electric push rod 37 is bolted to the connecting plate 36, and the piston rod end of the electric push rod 37 is bolted to the corresponding movable plate 34.

[0048] The car door handle is placed in the multi-point positioning placement groove, and then the corresponding movable plate 34 is driven by the electric push rod 2 37 to move close to the fixed seat 11, and with the help of the rotatably installed semicircular clamp block 2 33 and the semicircular clamp block 1 32, a larger clamping area can be provided for car door handles of different shapes, thereby improving the stable clamping after positioning and placement, and further achieving the effect of adaptive stable clamping of car door handles of different models after positioning.

[0049] An electric cylinder slide module Y15 is fixedly connected to one side of the top of the base 1, and an L-shaped bracket 16 is bolted on the electric cylinder slide module Y15. The electric cylinder slide module Y15 is set to realize the horizontal movement of the L-shaped bracket 16 in the Y-axis direction. An electric cylinder slide module X17 is fixedly connected to the L-shaped bracket 16, and a mounting plate 18 is bolted on the electric cylinder slide module X17. The electric cylinder slide module X17 is set to realize the horizontal movement of the mounting plate 18 in the X-axis direction;

[0050] A lifting plate 110 is fixedly mounted on the mounting plate 18 via an electric push rod 3 19, a welding machine 111 is bolted onto the lifting plate 110, vertical rods slidably connected to the mounting plate 18 are fixedly mounted on both sides of the top of the lifting plate 110, for increasing the stability of the welding machine 111 during the lifting process, and then combined with the setting of the electric push rod 3 19, the welding machine 111 can move in multiple directions on the X-axis, Y-axis and Z-axis, thereby realizing the welding process of the automobile door handle.

[0051] Example 2: Please refer to Figure 7 and Figure 8 As shown, in order to solve the problem that position deviation is easily caused during the process of setting the positioning placement groove, which makes it easy to push the car door handle to tilt and affect the positioning clamping effect during the subsequent clamping and fixing process, the following solution can be used:

[0052] In this embodiment, a positioning auxiliary component 4 is arranged on the fixing seat 11, and the positioning auxiliary component 4 includes a fixing plate 41, and a U-shaped limiting plate 42 is installed on the fixing plate 41. The U-shaped limiting plate 42 can be used to center the two sides of the car door handle, and auxiliary clamping plates 43 are symmetrically arranged on the U-shaped limiting plate 42. The auxiliary clamping plates 43 can center the other two sides of the car door handle, so that when the car door handle is placed for the first time to set the positioning placement groove, the car door handle can be assisted in centering at the top position of the fixing seat 11 by multi-faceted interference, thereby improving the accuracy of the positioning placement groove position setting.

[0053] Two sets of guide rods 44 are fixedly connected to the away sides of the two sets of auxiliary splints 43, and the guide rods 44 are slidably connected to the U-shaped limit plates 42. A second spring 45 is fixedly connected between the auxiliary splints 43 and the U-shaped limit plates 42 and on the outer sides of the corresponding guide rods 44. By setting the guide rods 44 and the second spring 45, the distance between the two sets of auxiliary splints 43 can be adaptively adjusted according to the size of the car door handle, thereby achieving the centering positioning of car door handles of different sizes. A guide plate is fixedly connected to the side of the auxiliary splint 43 away from the fixed seat 11. By setting an inclined guide plate, the two sets of auxiliary splints 43 are automatically pushed to move away from each other during the process of placing the car door handle, thereby improving the convenience of the placement process.

[0054] A U-shaped seat 46 is fixedly connected to the fixed seat 11 just above the connecting block 27, and the inside of the U-shaped seat 46 is rotatably connected to a flip rod 47 fixedly connected to the corresponding fixed plate 41, and a support plate 48 is symmetrically fixedly connected to the flip rod 47, and a linkage rod 49 slidably connected to the corresponding connecting block 27 is fixedly connected between the ends of the support plate 48;

[0055] The connecting block 27 is provided with a notch slidably connected to the linkage rod 49. During the movement of the two sets of tooth plates 25 away from each other, the two sets of flipping rods 47 carrying the fixing plate 41 and the U-shaped limiting plate 42 are pushed to flip 90 degrees under the cooperation of the connecting block 27 and the linkage rod 49, so that the U-shaped limiting plate 42 is flipped to the top of the fixing seat 11. At this time, the two sets of U-shaped limiting plates 42 and the two sets of auxiliary clamping plates 43 in the U-shaped limiting plate 42 under the compression elastic force of the spring 2 45 cooperate with each other to resist the car door handle placed in the early stage from multiple sides, so as to achieve the effect of auxiliary centering positioning;

[0056] After auxiliary centering positioning, the automobile door handle is pushed to squeeze multiple positioning rods 22 to move, forcing the ends of multiple positioning rods 22 to form a multi-point positioning placement groove adapted to the automobile door handle, and then the electric push rod 29 combined with the gear 14 drives the two sets of tooth plates 25 to move relative to each other, driving the flip rod 47 to carry the fixed plate 41 and the U-shaped limit plate 42 to reset and flip, so that the U-shaped limit plate 42 is separated from the automobile door handle and reset to both sides of the fixing seat 11 to avoid interference with the subsequent clamping and fixing of the automobile door handle. In this process, one side of the locking hole 24 on the locking plate 23 is synchronously forced to abut against the corresponding positioning rod 22 to complete the position restriction of multiple positioning rods 22.

[0057] A slide rail 410 is symmetrically fixedly connected to one side of the U-shaped limit plate 42, and two sets of push plates 411 are slidably connected between the slide rails 410. A push rod 412 is hinged between the push plate 411 and the fixed plate 41. A bidirectional screw rod 413 threadedly connected to the two sets of push plates 411 is rotatably connected to the U-shaped limit plate 42;

[0058] One end of the bidirectional screw rod 413 is fixedly connected to a torsion wheel, or the bidirectional screw rod 413 is driven to rotate by a motor. The two sets of push plates 411 are adjusted to move relative or apart by rotating the bidirectional screw rod 413, and the distance between the U-shaped limit plate 42 and the fixed plate 41 is adjusted in combination with the push rod 412 between the push plate 411 and the fixed plate 41, thereby realizing the adjustment of the distance between the two sets of U-shaped limit plates 42, and combining with the adjustment of the distance between the two sets of auxiliary splints 43, thereby realizing the positioning and placement of door handles of different models of cars.

[0059] Example 3: Please refer to Figure 1-Figure 8 As shown, the present invention also provides a method for using an automatic positioning welding device for a car door handle, comprising the following steps:

[0060] Step 1: The electric push rod 29 drives the corresponding tooth plate 25 to move away from the gear 14, and drives the locking plate 23 to move in the same direction through the connecting rod 26, so that one side of the locking hole 24 is separated from the corresponding positioning rod 22, and in this process, the other tooth plate 25 cooperates with the meshing gear 14 and moves synchronously away from the gear 14;

[0061] Step 2: During the movement of the two sets of tooth plates 25 away from each other, under the cooperation of the connecting block 27 and the linkage rod 49, the two sets of flip rods 47 are pushed to carry the fixed plate 41 and the U-shaped limit plate 42 to flip 90 degrees, so that the U-shaped limit plate 42 is flipped to the top of the fixed seat 11, and the spacing between the two sets of push plates 411 is adjusted by rotating the two-way screw rod 413, and the distance between the two sets of U-shaped limit plates 42 is adjusted in combination with the push rod 412, and then the two sets of auxiliary clamping plates 43 on the U-shaped limit plate 42 under the compression elastic force of the spring 2 45 cooperate with each other, so that the car door handle is placed in the early stage and assisted in centering by multi-faceted resistance;

[0062] Step 3: After auxiliary centering positioning, push the car door handle to squeeze the multiple positioning rods 22 to compress the corresponding spring 1 21, forcing the ends of the multiple positioning rods 22 to form a multi-point positioning placement groove with the same shape as the local shape of the car door handle, and then drive the two sets of toothed plates 25 to move relative to each other through the electric push rod 1 29 in combination with the gear 14, first drive the flip rod 47 to reset and flip, so that the U-shaped limit plate 42 is separated from the car door handle, and then force one side of the locking hole 24 on the locking plate 23 to abut against the corresponding positioning rod 22, thereby limiting the position of the multiple positioning rods 22 to maintain the formed multi-point positioning placement groove;

[0063] Step 4: Place the car door handle in the multi-point positioning placement slot, and then use the electric push rod 2 37 to drive the corresponding movable plate 34 to move closer to the fixed seat 11. With the help of the sliding connection between the multiple semicircular clamping blocks 2 33 and the semicircular clamping block 1 32, and the sliding connection between the semicircular clamping block 1 32 and the clamping seat 31, each semicircular clamping block 2 33 is forced to contact the car door handle, so as to achieve the purpose of adaptive and stable clamping.

[0064] Step five: Use the electric push rod 3 19 to drive the welding machine 111 to descend and contact the fixed car door handle, and then use the electric cylinder slide module Y15 and the electric cylinder slide module X17 to drive the welding machine 111 to move in multiple directions on the X-axis and the Y-axis to complete the welding process of the car door handle. When positioning welding is performed on the remaining surfaces of the car door handle or on car door handles of different models, repeat the above operation and change the adapted positioning placement slot, so that positioning welding can be performed on car door handles of different models.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic positioning welding device for a car door handle, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a fixing seat (11), and a positioning assembly (2) is arranged on the fixing seat (11), the positioning assembly (2) comprises mounting grooves densely arranged on the top of the fixing seat (11), a positioning rod (22) is fixedly connected to the inside of the mounting groove via a spring (21), and a locking plate (23) for locking the position of the positioning rod (22) is arranged inside the fixing seat (11); An adaptive clamping assembly (3) is arranged on the fixing seat (11), and the adaptive clamping assembly (3) comprises clamping seats (31) symmetrically arranged on both sides of the fixing seat (11), one side of the clamping seat (31) is symmetrically rotatably connected to a semicircular clamping block 1 (32), and one side of the semicircular clamping block 1 (32) is symmetrically rotatably connected to a semicircular clamping block 2 (33); The fixing seat (11) is provided with a positioning auxiliary component (4), the positioning auxiliary component (4) comprises a fixing plate (41), a U-shaped limiting plate (42) is mounted on the fixing plate (41), and auxiliary clamping plates (43) are symmetrically arranged on the U-shaped limiting plate (42); The fixing seat (11) has an installation cavity (12) for slidingly connecting the locking plate (23), the locking plate (23) has a locking hole (24) for the corresponding positioning rod (22) to pass through, and the fixing seat (11) has a movable groove (13) inside. A fixed shaft is fixedly connected inside the movable groove (13), and a gear (14) is rotatably connected to the fixed shaft. Tooth plates (25) meshing with the gear (14) are slidably connected to both sides of the movable groove (13). A connecting rod (26) is fixedly connected between the locking plate (23) and one of the tooth plates (25). A connecting groove for the connecting rod (26) to slide is provided between the mounting cavity (12) and the movable groove (13).

2. The automatic positioning welding device for automobile door handle according to claim 1, characterized in that: One end of the tooth plate (25) extends to the outside of the fixing seat (11) and is fixedly connected to a connecting block (27); one side of the fixing seat (11) is fixedly connected to a U-shaped frame (28); an electric push rod (29) is bolted to the U-shaped frame (28); and the piston rod end of the electric push rod (29) is bolted to the corresponding connecting block (27).

3. The automatic positioning welding device for automobile door handle according to claim 1, characterized in that: A movable plate (34) is fixedly connected to one side of the clamping seat (31), and a slide rod (35) fixedly connected to the fixed seat (11) is symmetrically slidably connected to the movable plate (34), a connecting plate (36) is fixedly connected between the ends of the slide rod (35), a second electric push rod (37) is bolted to the connecting plate (36), and the piston rod end of the second electric push rod (37) is bolted to the corresponding movable plate (34).

4. The automatic positioning welding device for automobile door handle according to claim 1, characterized in that: Two groups of guide rods (44) are fixedly connected to the away sides of the two groups of auxiliary clamps (43), and the guide rods (44) are slidably connected to the U-shaped limit plates (42). A second spring (45) is fixedly connected between the auxiliary clamps (43) and the U-shaped limit plates (42) and located on the outside of the corresponding guide rods (44). A guide plate is fixedly connected to the side of the auxiliary clamps (43) away from the fixed seat (11).

5. The automatic positioning welding device for automobile door handle according to claim 2, characterized in that: A U-shaped seat (46) is fixedly connected to the fixed seat (11) just above the connecting block (27), and the interior of the U-shaped seat (46) is rotatably connected to a flip rod (47) fixedly connected to the corresponding fixed plate (41), and a support plate (48) is symmetrically fixedly connected to the flip rod (47), and a linkage rod (49) slidably connected to the corresponding connecting block (27) is fixedly connected between the ends of the support plate (48).

6. The automatic positioning welding device for automobile door handle according to claim 5, characterized in that: A slide rail (410) is symmetrically fixedly connected to one side of the U-shaped limiting plate (42), and two groups of push plates (411) are slidably connected between the slide rails (410). A push rod (412) is hinged between the push plate (411) and the fixed plate (41). A bidirectional screw rod (413) threadedly connected to the two groups of push plates (411) is rotatably connected to the U-shaped limiting plate (42).

7. The automatic positioning welding device for automobile door handle according to claim 1, characterized in that: An electric cylinder slide module Y (15) is fixedly connected to one side of the top of the base (1), and an L-shaped bracket (16) is bolted onto the electric cylinder slide module Y (15), an electric cylinder slide module X (17) is fixedly connected to the L-shaped bracket (16), and a mounting plate (18) is bolted onto the electric cylinder slide module X (17), a lifting plate (110) is fixedly mounted onto the mounting plate (18) via an electric push rod three (19), and a welding machine (111) is bolted onto the lifting plate (110).

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