Auxiliary clamping device for welding automobile doorsill part

Abstract

The invention relates to the technical field of automobile doorsill part machining equipment, and discloses an auxiliary clamping device for automobile doorsill part welding, which comprises a mounting bottom plate serving as a supporting carrier of the whole device, the top of the mounting bottom plate is fixedly connected with a mounting top plate, and a clamping assembly for fixing an automobile doorsill part is mounted on the inner side of the mounting top plate; the automatic feeding assembly is mounted at the bottom of the clamping assembly and used for automatically feeding the automobile doorsill parts; the knocking assembly is mounted on the outer side of the mounting top plate and used for knocking and removing welding slag generated in the welding process of the automobile doorsill part; by additionally arranging the knocking assembly, welding slag generated in the welding process of the automobile doorsill part can be knocked, vibrated and removed, so that the smoothness and continuity of a welding seam are ensured, the mechanical property and corrosion resistance of a welding joint are improved, meanwhile, manual operation is not needed, the subsequent treatment time is shortened, and the welding process is more efficient and smoother.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door sill processing equipment, in particular to an auxiliary clamping device for welding automobile door sills. Background Art

[0002] In the field of automobile manufacturing, door sills, as important structural parts, bear the safety and durability of the vehicle, and their welding quality directly affects the performance of the entire vehicle. In the existing welding process of automobile door sills, traditional manual or semi-automatic clamping devices are often relied on. The above operation method not only requires workers to perform pre-welding preparations, but also requires manual cleaning of welding slag during the welding process to maintain the smoothness and continuity of the weld. However, this manual cleaning of welding slag is not only time-consuming and labor-intensive, but also easily affected by human factors, resulting in unstable quality of the welded joint, thereby affecting its mechanical properties and corrosion resistance. In addition, the existing welding auxiliary clamping device is usually designed with fixed fixtures and positioning systems to adapt to the standardized door sill size. However, due to the different designs and sizes of automobile door sills, the existing equipment often lacks the necessary flexibility and adaptability when facing door sills of different specifications.

[0003] Therefore, those skilled in the art have proposed an auxiliary clamping device for welding automobile door sills to solve the above problems. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an auxiliary clamping device for welding automobile threshold parts, which solves the problem that the auxiliary clamping device for welding automobile threshold parts in the prior art requires manual cleaning of welding slag and has relatively low work efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an auxiliary clamping device for welding automobile door sills, comprising:

[0006] A mounting base plate, which serves as a support carrier for the entire device, a mounting top plate is fixedly connected to the top of the mounting base plate, and a clamping assembly for fixing a door sill of an automobile is installed on the inner side of the mounting top plate;

[0007] An automatic feeding assembly, which is installed at the bottom of the clamping assembly and is used for automatically feeding the automobile door sill;

[0008] A knocking assembly, which is installed on the outside of the mounting top plate and is used to knock away welding slag generated during the welding process of the automobile door sill parts;

[0009] A driving assembly, which is installed outside the automatic feeding assembly and is used to drive the automatic feeding assembly;

[0010] The smoke removal component is installed on the outside of the mounting top plate and is used to purify and absorb the smoke generated during the welding process of the automobile door sill.

[0011] The automatic feeding includes a dual-axis servo motor, which is fixedly connected to the top of the mounting base plate, one of the output ends of the dual-axis servo motor is fixedly connected to a bidirectional threaded rod, the external threads of the bidirectional threaded rod are connected to two threaded blocks, the front and rear sides of the top of the mounting base plate are fixedly connected to guide rods, the outside of the guide rods is slidably connected to a slider, the top of the slider and the threaded block are rotatably connected to a lifting rod, and the top of the lifting rod is rotatably connected to a lifting plate.

[0012] The driving assembly includes a first synchronous wheel, which is fixedly connected to the other output end of the dual-axis servo motor, the outside of the first synchronous wheel is connected to the second synchronous wheel through a belt drive, the inside of the second synchronous wheel is fixedly connected to a transmission shaft, one end of the transmission shaft is fixedly connected to a second bevel gear, the outer side of the second bevel gear is meshedly connected to the first bevel gear, and the outer side of the first bevel gear is fixedly connected to a connecting rod.

[0013] The clamping assembly includes a fixed plate, which is fixedly connected to the inner side of the mounting top plate, an annular electric guide rail is installed on the top of the fixed plate, and two welding robot arms are installed on the outer side of the annular electric guide rail. Two through grooves are provided on the outer side of the fixed plate, and a driving rack is slidably connected to the inner wall of the through groove. The interior of the fixed plate is rotatably connected to a gear ring, and two driving gears are movably connected to the inner side of the fixed plate through bearings, one end of the driving rack is fixedly connected to an electric turntable, and an electric telescopic rod is installed on the inner bottom of the mounting top plate.

[0014] The output end of the electric telescopic rod is fixedly connected to one end of one of the driving racks, the outer side of the driving rack is meshed with the outer side of the driving gear, and the outer side of the driving gear is meshed with the outer side of the gear ring.

[0015] The knocking assembly includes a fixed column, which is fixedly connected to the outer side of the fixed plate, a movable column is slidably connected inside the fixed column, two rack plates are fixedly connected to the inner side of the movable column, a fan gear is rotatably connected to the inner side of the fixed column, one end of the movable column is fixedly connected to a connecting column, and a knocking ball is elastically connected to the top of the connecting column through a spring.

[0016] The outer sides of the two sector gears are meshed and connected with the outer side of the rack plate, and the bottom of the sector gear is fixedly connected to the top of the connecting rod.

[0017] The smoke removal assembly includes a collecting box and a square column, the square column and the collecting box are fixedly connected to the outer side of the mounting top plate, the interior of the square column is slidably connected to a movable plate, one side of the exterior of the square column is connected to an exhaust pipe, the other side of the exterior of the square column is connected to a first connecting pipe, one-way valves are installed inside the exhaust pipe and the first connecting pipe, the outer side of the collecting box is connected to a second connecting pipe, and one end of the second connecting pipe is fixedly connected to a ring pipe.

[0018] One end of the first connecting pipe is connected to the interior of the collecting box, a filter screen is installed on the inner wall of the collecting box, and one end of the movable plate is fixedly connected to the top of the movable column through a square plate.

[0019] A conveyor belt is installed on one side of the top of the installation base plate, and a material discharge inclined plate is arranged at the output port of the conveyor belt.

[0020] Working principle: When using this device, first, the intelligent program controls the intermittent start of the conveyor belt, so that the car door sills on the outer surface of the conveyor belt are intermittently transported. At this time, the car door sills at the output port of the conveyor belt slide to the top of the lifting plate through the unloading inclined plate. By starting one of the output ends of the dual-axis servo motor, the bidirectional threaded rod is driven to follow the rotation, so that the two threaded blocks are close to or away from each other along the outer wall of the bidirectional threaded rod. When the threaded block moves, it will drive the bottom end of the lifting rod to follow the swing, and under the action of the traction force of the lifting rod, it drives the lifting plate to move upward, and moves the car door sill on the top of the lifting plate to the inside of the clamping assembly, thus realizing the function of automatic loading;

[0021] At this time, by starting the electric telescopic rod, one of the driving racks is driven to move along the inner wall of the through groove. During the movement, the driving gear is driven to rotate, thereby further driving the gear ring to rotate synchronously. Under the meshing transmission action of the other driving gear, the other driving rack is driven to move closer to the inner side of the fixed plate. The two electric turntables are used to clamp and fix the automobile threshold. In addition, the electric turntable can rotate the automobile threshold, which can effectively prevent the workpiece from moving or deforming during the welding process, thereby improving the welding accuracy and consistency. At this time, the automobile threshold is welded by the welding robot arm;

[0022] During the welding process, the other output end of the dual-axis servo motor rotates to drive the first synchronous wheel to rotate, and drives the second synchronous wheel to rotate through the transmission action of the belt, thereby driving the transmission shaft to rotate, and then driving the second bevel gear to rotate synchronously, thereby driving the meshed first bevel gear to rotate, and further synchronously following the rotation of the connecting rod. At this time, the fan gear located on the inner side of the fixed column rotates, so that the fan gear intermittently meshes with the two rack plates, so that the movable column moves back and forth along the inner wall of the fixed column. When the fixed column moves, it will drive the connecting column and the knocking ball to move synchronously. The knocking ball is used to continuously knock on the outer surface of the car door sill, and the welding slag generated during the welding process is automatically cleaned, thereby ensuring the smoothness and continuity of the weld, and improving the mechanical properties and corrosion resistance of the welded joint;

[0023] In addition, when the movable column moves synchronously, it will drive the square plate to move synchronously, and then drive the movable plate to move synchronously, so that the inside of the square column will continuously form a negative pressure state, and under the connection of the first connecting pipe, the collection box will also form a negative pressure state. Therefore, the smoke generated during the welding process of the automobile threshold enters the inside of the second connecting pipe through the annular pipe, and continues to enter the inside of the collection box through the second connecting pipe to purify and absorb the smoke; effectively solve the smoke problem generated during the welding process, and can quickly remove harmful gases and particulate matter, thereby improving the working environment and protecting the health of workers. Secondly, since it does not rely on large equipment such as exhaust fans, it saves equipment investment and space occupation, and reduces energy consumption.

[0024] The present invention provides an auxiliary clamping device for welding automobile door sills, which has the following beneficial effects:

[0025] 1. The present invention can remove the welding slag generated during the welding process of automobile door sills by knocking and vibrating by adding a knocking component, thereby ensuring the smoothness and continuity of the weld, improving the mechanical properties and corrosion resistance of the welded joint, and at the same time, no manual operation is required, thus reducing the time for subsequent processing, making the welding process more efficient and smooth, thereby improving the operating efficiency of the entire production line.

[0026] 2. The present invention can adapt to different types and sizes of thresholds by adding a clamping assembly. The versatility of the equipment is improved, and the clamping effect is good, which can effectively prevent the workpiece from moving or deforming during the welding process, thereby improving the accuracy and consistency of welding. At the same time, the clamping assembly has a flipping function, which can easily flip the threshold to a different working surface for welding, reducing the frequency of manual operation by workers.

[0027] 3. The present invention adds an automatic feeding component, so that the automobile door sill can be automatically fed during the welding process, thereby greatly reducing the time for manual feeding and improving the overall work efficiency of the production line.

[0028] 4. The present invention can purify and absorb smoke during the operation of the knocking assembly by adding a smoke removal component, effectively solving the smoke problem generated during welding, and can quickly remove harmful gases and particulate matter, thereby improving the working environment and protecting the health of workers. Secondly, since it does not rely on large equipment such as exhaust fans, it saves equipment investment and space occupation, and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective view of the present invention;

[0030] Figure 2 It is a schematic diagram of the conveyor belt structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the installation top plate structure of the present invention;

[0032] Figure 4 is a cross-sectional view of a square column of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the fixing column of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the annular electric guide rail of the present invention;

[0035] Figure 7 is a cross-sectional view of a movable column of the present invention;

[0036] Figure 8 is a cross-sectional view of a fixed disk of the present invention;

[0037] Fig. 9 It is a schematic diagram of the lifting plate structure of the present invention;

[0038] Fig.10 for Figure 2 Enlarged view of point A in the middle.

[0039] Among them, 1. Install the bottom plate; 2. Install the top plate; 3. Transport belt; 401. Lifting plate; 402. Guide rod; 403. Dual-axis servo motor; 404. Bidirectional threaded rod; 405. Thread block; 406. Lifting rod; 501. First synchronous wheel; 502. Belt; 503. Second synchronous wheel; 504. Transmission shaft; 505. First bevel gear; 506. Second bevel gear; 507. Connecting rod; 601. Fixed plate; 602. Drive rack; 603. Through slot; 604. Gear ring; 605. Electric Moving turntable; 606, annular electric guide rail; 607, welding robot arm; 608, driving gear; 609, electric telescopic rod; 701, fixed column; 702, movable column; 703, rack plate; 704, fan gear; 705, connecting column; 706, knocking ball; 801, annular tube; 802, square column; 803, moving plate; 804, collecting box; 805, exhaust pipe; 806, one-way valve; 807, first connecting pipe; 808, second connecting pipe; 9, square plate; 10, unloading inclined plate. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings of the present invention specification 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.

[0041] Please refer to the attached Figure 1 - Attachment Fig.10 The embodiment of the present invention provides an auxiliary clamping device for welding automobile door sills, comprising:

[0042] A mounting base plate 1 is used as a support carrier of the entire device. A mounting top plate 2 is fixedly connected to the top of the mounting base plate 1. A clamping assembly for fixing a door sill of an automobile is mounted on the inner side of the mounting top plate 2.

[0043] The clamping assembly includes a fixed plate 601, which is fixedly connected to the inner side of the mounting top plate 2. An annular electric guide rail 606 is installed on the top of the fixed plate 601, and two welding robot arms 607 are installed on the outer side of the annular electric guide rail 606. Two through grooves 603 are provided on the outer side of the fixed plate 601, and a driving rack 602 is slidably connected to the inner wall of the through groove 603. The interior of the fixed plate 601 is rotatably connected to a gear ring 604. Two driving gears 608 are movably connected to the inner side of the fixed plate 601 through bearings. One end of the driving rack 602 is fixedly connected to an electric turntable 605, and an electric telescopic rod 609 is installed on the inner bottom of the mounting top plate 2.

[0044] The output end of the electric telescopic rod 609 is fixedly connected to one end of one of the driving racks 602 , the outer side of the driving rack 602 is meshedly connected to the outer side of the driving gear 608 , and the outer side of the driving gear 608 is meshedly connected to the outer side of the gear ring 604 .

[0045] Specifically, the fixed plate 601 ensures the rigidity and stability of the entire assembly and provides a mounting base for other components. The annular electric guide rail 606 provides a closed-loop motion trajectory, which enables the welding robot arm 607 to flexibly operate around the fixed plate 601, thereby enhancing the accessibility of the working area. The welding robot arm 607 can achieve high-precision welding of the workpiece. The two through grooves 603 provide a sliding channel for the drive rack 602. The inner wall of the through groove 603 is precisely machined to ensure the smooth movement of the drive rack 602 and reduce friction losses. The drive rack 602 is responsible for converting the movement of the electric telescopic rod 609 into linear motion, thereby driving the rotation of the gear 608. The gear ring 604 inside the fixed plate 601 is meshed with the drive gear 608, and can achieve synchronous rotation when the drive gear rotates, thereby enhancing the transmission accuracy and reliability of the system.

[0046] The electric turntable 605 has a rotation function, which can clamp and position the door sill of the car to ensure the stability of the workpiece during welding. The electric telescopic rod 609 is the driving source of the system, and its telescopic movement realizes the movement of the driving rack 602, thereby driving the movement of the entire clamping device.

[0047] When the electric telescopic rod 609 is activated, its telescopic action will drive one of the driving racks 602 to move along the inner wall of the through slot 603. The movement of the driving rack 602 will drive the driving gear 608 fixedly connected to the inside of the fixed plate 601 to rotate, and the rotation of the gear 608 further drives the gear ring 604 to rotate synchronously. Under the meshing transmission of the two driving gears 608, the other driving rack 602 moves closer to the inner side of the fixed plate 601, and the automobile threshold is clamped by the electric turntable 605 to ensure that the workpiece does not move or deform during the welding process. After clamping, the workpiece is stabilized in a predetermined position, and the welding robot arm 607 can accurately weld the automobile threshold, thereby improving the accuracy and consistency of welding.

[0048] An automatic feeding assembly, which is installed at the bottom of the clamping assembly and is used for automatically feeding the automobile door sill;

[0049] The automatic loading includes a dual-axis servo motor 403, which is fixedly connected to the top of the mounting base plate 1. One of the output ends of the dual-axis servo motor 403 is fixedly connected to a bidirectional threaded rod 404. The external threads of the bidirectional threaded rod 404 are connected to two threaded blocks 405. The front and rear sides of the top of the mounting base plate 1 are fixedly connected to guide rods 402. The external sliding connection of the guide rods 402 is a slider. The tops of the sliders and the threaded blocks 405 are rotatably connected to lifting rods 406. The top of the lifting rod 406 is rotatably connected to a lifting plate 401.

[0050] Specifically, by starting one of the output ends of the dual-axis servo motor 403, the bidirectional threaded rod 404 is driven to rotate, so that the two threaded blocks 405 move closer to or farther away from each other along the outer wall of the bidirectional threaded rod 404. When the threaded block 405 moves, the bottom end of the lifting rod 406 is driven to swing, and under the traction force of the lifting rod 406, the lifting plate 401 is driven to move upward, and the car door sill on the top of the lifting plate 401 is moved to the inside of the clamping assembly, thereby realizing the function of automatic loading.

[0051] A knocking assembly, which is installed on the outside of the mounting top plate 2 and is used to knock away welding slag generated during the welding process of the automobile door sill;

[0052] The knocking assembly includes a fixed column 701, which is fixedly connected to the outer side of the fixed plate 601. The fixed column 701 is slidably connected to a movable column 702 inside. Two rack plates 703 are fixedly connected to the inner side of the movable column 702. A fan gear 704 is rotatably connected to the inner side of the fixed column 701. One end of the movable column 702 is fixedly connected to a connecting column 705. The top of the connecting column 705 is elastically connected to a knocking ball 706 through a spring.

[0053] The outer sides of the two sector gears 704 are meshed with the outer sides of the rack plate 703 , and the bottoms of the sector gears 704 are fixedly connected to the top of the connecting rod 507 .

[0054] Specifically, the main function of the fixed column 701 is to provide stable support and guiding functions to ensure the smooth movement of the movable column 702. The design of the movable column 702 enables the power to be effectively transmitted to the connecting column 705 and the knocking ball 706 during operation. The inner side of the fixed column 701 is rotatably connected with a fan gear 704. The shape and size of the fan gear 704 are designed to ensure that it can intermittently mesh with the rack plate 703, thereby realizing the left and right reciprocating motion of the movable column 702. The bottom of the fan gear 704 is fixedly connected to the top of the connecting rod 507, ensuring the reliability of the rotation process. The top of the connecting column 705 is elastically connected with the knocking ball 706 through a spring. The role of the spring is to ensure that the knocking ball 706 can maintain a certain pressure during operation and can effectively absorb the impact force during the movement to prevent damage to the car door sill.

[0055] When the connecting rod 507 rotates, the sector gear 704 located inside the fixing column 701 rotates accordingly.

[0056] The sector gear 704 is intermittently meshed with the two rack plates 703. This meshing process enables the movable column 702 to reciprocate left and right along the inner wall of the fixed column 701. When the movable column 702 moves left and right, the fixed column 701 also moves accordingly. The movement of the movable column 702 drives the connecting column 705 and the knocking ball 706 to move synchronously. The knocking ball 706 continuously knocks on the outer surface of the automobile door sill to automatically clean the welding slag generated during the welding process. This cleaning process can promptly remove the residue on the surface after welding to ensure the smoothness and continuity of the weld.

[0057] A driving assembly, which is installed outside the automatic feeding assembly and is used to drive the automatic feeding assembly;

[0058] The driving assembly includes a first synchronous wheel 501, which is fixedly connected to the other output end of the dual-axis servo motor 403. The outside of the first synchronous wheel 501 is connected to the second synchronous wheel 503 through a belt 502. The inner side of the second synchronous wheel 503 is fixedly connected to a transmission shaft 504. One end of the transmission shaft 504 is fixedly connected to a second bevel gear 506. The outer side of the second bevel gear 506 is meshedly connected to the first bevel gear 505. The outer side of the first bevel gear 505 is fixedly connected to a connecting rod 507.

[0059] Specifically, the other output end of the dual-axis servo motor 403 rotates to drive the first synchronous wheel 501 to rotate, and drives the second synchronous wheel 503 to rotate through the transmission action of the belt 502, thereby driving the transmission shaft 504 to rotate, and then driving the second bevel gear 506 to rotate synchronously, thereby driving the meshing first bevel gear 505 to rotate, and further driving the connecting rod 507 to rotate synchronously.

[0060] The smoke removal component is installed on the outside of the mounting top plate 2 and is used to purify and absorb the smoke generated during the welding process of the automobile door sill.

[0061] The smoke removal component includes a collecting box 804 and a square column 802. The square column 802 and the collecting box 804 are both fixedly connected to the outside of the mounting top plate 2. The inside of the square column 802 is slidably connected to a movable plate 803. One side of the outside of the square column 802 is connected to an exhaust pipe 805, and the other side of the outside of the square column 802 is connected to a first connecting pipe 807. Check valves 806 are installed inside the exhaust pipe 805 and the first connecting pipe 807. The outside of the collecting box 804 is connected to a second connecting pipe 808, and one end of the second connecting pipe 808 is fixedly connected to a ring pipe 801.

[0062] One end of the first connecting pipe 807 is connected to the interior of the collecting box 804 , a filter screen is installed on the inner wall of the collecting box 804 , and one end of the movable plate 803 is fixedly connected to the top of the movable column 702 through the square plate 9 .

[0063] Specifically, one side of the outside of the square column 802 is connected to an exhaust pipe 805, and the other side is connected to a first connecting pipe 807. The design of these two pipes is to ensure that smoke can be discharged smoothly and effectively collected. A one-way valve 806 is installed inside the exhaust pipe 805 and the first connecting pipe 807. The one-way valve 806 ensures the unidirectionality of the gas flow direction, thereby avoiding backflow and ensuring the efficient operation of the system.

[0064] The outer side of the collection box 804 is connected to a second connecting pipe 808, and one end of the second connecting pipe 808 is fixedly connected to the annular pipe 801. The design of the annular pipe 801 is to form a stable air intake channel to ensure that the smoke generated during the welding process can be smoothly inhaled. During the welding process, the smoke generated will enter the second connecting pipe 808 through the annular pipe 801 and further flow into the interior of the collection box 804. The inner wall of the collection box 804 is installed with a filter screen, which can effectively filter out larger particles, thereby ensuring that relatively clean gas enters the exhaust system and reducing the risk of secondary pollution.

[0065] When the movable column 702 is in the process of synchronous movement, the square plate 9 is driven to move accordingly, thereby driving the movable plate 803 to move synchronously. The continuous movement of the movable plate 803 causes the space inside the square column 802 to continuously form a negative pressure state. This negative pressure state directly affects the inside of the collection box 804 under the connection effect of the first connecting pipe 807, so that it also forms a negative pressure. This design not only ensures that the smoke generated during the welding process is quickly sucked in and processed, but also effectively solves the problem of smoke accumulation during the welding process.

[0066] A conveyor belt 3 is installed on one side of the top of the installation base plate 1 , and a material discharge inclined plate 10 is provided at the output port of the conveyor belt 3 .

[0067] Specifically, the conveyor belt 3 is responsible for conveying the pre-processed automobile threshold parts from one place to another. The conveyor belt 3 has a surface with a high friction coefficient to ensure that the threshold parts will not slide or fall during the conveying process. The output port of the conveyor belt 3 is provided with a material unloading inclined plate 10, which is mainly used to guide the automobile threshold parts to slide from the conveyor belt 3 to the lifting plate 401 of the subsequent processing equipment. The angle of the material unloading inclined plate 10 is optimized to ensure that the threshold parts are stable and safe during the sliding process, and to avoid damage or retention of the threshold parts due to improper inclination angle. The operating principle is: the intelligent program control system sets the intermittent start of the conveyor belt 3 according to production requirements. By controlling the start and stop of the conveyor belt 3, it is ensured that the conveyor belt 3 delivers the threshold parts to the output port of the material unloading inclined plate 10 within an appropriate time interval. After the automobile threshold parts are conveyed by the conveyor belt 3, the threshold parts located at the output port of the conveyor belt 3 will naturally slide to the top of the lifting plate 401 through the material unloading inclined plate 10. The lifting plate 401 plays a role of receiving and positioning in this process, preparing for the subsequent welding process.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary clamping device for welding automobile door sills, characterized in that: include: A mounting base plate (1) serving as a support carrier for the entire device, wherein the top of the mounting base plate (1) is fixedly connected to a mounting top plate (2), and a clamping assembly for fixing a vehicle door sill is installed on the inner side of the mounting top plate (2); An automatic feeding assembly, which is installed at the bottom of the clamping assembly and is used for automatically feeding the automobile door sill; A knocking assembly, which is installed on the outside of the mounting top plate (2) and is used to knock away welding slag generated during the welding process of the automobile door sill; A driving assembly, which is installed outside the automatic feeding assembly and is used to drive the automatic feeding assembly; The smoke removal component is installed on the outside of the mounting top plate (2) and is used to purify and absorb smoke generated during the welding process of the automobile door sill.

2. The auxiliary clamping device for welding automobile door sills according to claim 1, characterized in that: The automatic loading comprises a dual-axis servo motor (403), the dual-axis servo motor (403) is fixedly connected to the top of the mounting base plate (1), one of the output ends of the dual-axis servo motor (403) is fixedly connected to a bidirectional threaded rod (404), the external threads of the bidirectional threaded rod (404) are connected to two threaded blocks (405), the front and rear sides of the top of the mounting base plate (1) are fixedly connected to guide rods (402), the outside of the guide rods (402) is slidably connected to a slider, the tops of the slider and the threaded blocks (405) are rotatably connected to a lifting rod (406), and the top of the lifting rod (406) is rotatably connected to a lifting plate (401).

3. The auxiliary clamping device for welding automobile door sills according to claim 1, characterized in that: The driving assembly comprises a first synchronous wheel (501), the first synchronous wheel (501) is fixedly connected to the other output end of the dual-axis servo motor (403), the outside of the first synchronous wheel (501) is connected to the second synchronous wheel (503) through a belt (502), the inside of the second synchronous wheel (503) is fixedly connected to a transmission shaft (504), one end of the transmission shaft (504) is fixedly connected to a second bevel gear (506), the outside of the second bevel gear (506) is meshedly connected to the first bevel gear (505), and the outside of the first bevel gear (505) is fixedly connected to a connecting rod (507).

4. The auxiliary clamping device for welding automobile door sills according to claim 1, characterized in that: The clamping assembly comprises a fixed disk (601), wherein the fixed disk (601) is fixedly connected to the inner side of the mounting top plate (2), an annular electric guide rail (606) is installed on the top of the fixed disk (601), two welding robot arms (607) are installed on the outer side of the annular electric guide rail (606), two through grooves (603) are provided on the outer side of the fixed disk (601), a driving rack (602) is slidably connected to the inner wall of the through groove (603), a gear ring (604) is rotatably connected inside the fixed disk (601), two driving gears (608) are movably connected to the inner side of the fixed disk (601) via a bearing, one end of the driving rack (602) is fixedly connected to an electric turntable (605), and an electric telescopic rod (609) is installed on the inner bottom of the mounting top plate (2).

5. The auxiliary clamping device for welding automobile door sills according to claim 4, characterized in that: The output end of the electric telescopic rod (609) is fixedly connected to one end of one of the driving racks (602), the outer side of the driving rack (602) is meshingly connected to the outer side of the driving gear (608), and the outer side of the driving gear (608) is meshingly connected to the outer side of the gear ring (604).

6. The auxiliary clamping device for welding automobile door sills according to claim 1, characterized in that: The knocking assembly comprises a fixed column (701), wherein the fixed column (701) is fixedly connected to the outer side of the fixed plate (601), a movable column (702) is slidably connected inside the fixed column (701), two rack plates (703) are fixedly connected inside the movable column (702), a sector gear (704) is rotatably connected inside the fixed column (701), a connecting column (705) is fixedly connected to one end of the movable column (702), and a knocking ball (706) is elastically connected to the top of the connecting column (705) via a spring.

7. The auxiliary clamping device for welding automobile door sills according to claim 6, characterized in that: The outer sides of the two sector gears (704) are meshedly connected with the outer side of the rack plate (703), and the bottom of the sector gear (704) is fixedly connected to the top of the connecting rod (507).

8. The auxiliary clamping device for welding automobile door sills according to claim 1, characterized in that: The smoke removal component comprises a collection box (804) and a square column (802); the square column (802) and the collection box (804) are both fixedly connected to the outside of the mounting top plate (2); the interior of the square column (802) is slidably connected to a movable plate (803); one side of the exterior of the square column (802) is connected to an exhaust pipe (805); the other side of the exterior of the square column (802) is connected to a first connecting pipe (807); a one-way valve (806) is installed inside the exhaust pipe (805) and the first connecting pipe (807); the exterior of the collection box (804) is connected to a second connecting pipe (808); one end of the second connecting pipe (808) is fixedly connected to an annular pipe (801).

9. The auxiliary clamping device for welding automobile door sills according to claim 8, characterized in that: One end of the first connecting pipe (807) is connected to the interior of the collecting box (804), a filter screen is installed on the inner wall of the collecting box (804), and one end of the movable plate (803) is fixedly connected to the top of the movable column (702) through a square plate (9).

10. The auxiliary clamping device for welding automobile door sills according to claim 1, characterized in that: A conveyor belt (3) is installed on one side of the top of the installation base plate (1), and a material discharge inclined plate (10) is provided at the output port of the conveyor belt (3).

Images