B column thermal forming part welding device and welding method thereof

Abstract

The invention provides a B column thermal forming part welding device which comprises a welding machine tool, and the top end of the welding machine tool is connected with a conveying assembly and a positioning assembly. The conveying assembly comprises a cavity formed in the top end of the welding machine tool and a roller conveying belt connected into a cavity body of the cavity, and the roller conveying belt is composed of a plurality of rotating rollers rotationally connected into the cavity body of the cavity. The positioning assembly comprises displacement mechanisms arranged on the two sides of the cavity and a clamping mechanism connected with the displacement mechanisms and used for clamping the B column thermal forming part. Smoke enters the inner cavity of the sliding frame to be collected, and therefore the situation that the smoke stays in the working environment is reduced.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of hot forming parts processing, and in particular to a B-pillar hot forming parts welding device and a welding method thereof. Background Art

[0002] With the rapid development of society, the number of cars in use has greatly increased. In order to facilitate the frame design of the car, the B-pillar has appeared. The existing B-pillar often needs to be welded during the processing.

[0003] At present, the B-pillar thermoformed parts welding device often generates a large amount of smoke during the welding process, but lacks the function of quickly absorbing the smoke, which causes the smoke to pollute the working environment and affects the welding of the B-pillar thermoformed parts. Summary of the invention

[0004] The present invention mainly provides a B-pillar hot-formed parts welding device and a welding method thereof to solve the technical problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A B-pillar thermoforming parts welding device comprises a welding machine bed, the top end of which is connected with a transmission component and a positioning component.

[0007] The transmission component comprises a cavity arranged at the top of the welding machine and a roller conveyor belt connected to the cavity. The roller conveyor belt is composed of a plurality of rotating rollers rotatably connected to the cavity.

[0008] The positioning assembly comprises a displacement mechanism arranged on both sides of the cavity, and a clamping mechanism connected to the displacement mechanism and used for clamping the B-pillar thermoforming part.

[0009] Furthermore, the displacement mechanism includes a sliding cavity arranged at the top of the welding machine, and a screw rod rotatably connected to the inside of the sliding cavity. In the present invention, the sliding cavity on the welding machine is used to accommodate the screw rod and guide the sliding frame to slide along the cavity of the sliding cavity.

[0010] Furthermore, the clamping mechanism includes a sliding frame slidably connected to the two sliding chambers, one end of the sliding frame is connected to the screw rod through a nut, and the other end of the sliding frame is provided with a through hole for the screw rod to pass through. In the present invention, since the screw rod and the sliding frame are connected through the nut, when the motor drives the screw rod connected to its output shaft to rotate, it drives the sliding frame to slide along the cavity of the sliding chamber.

[0011] Furthermore, the clamping mechanism also includes an electric push rod connected to the upper surface of the sliding frame, and a clamping plate connected to the execution end of the electric push rod. In the present invention, the clamping plate is driven to rise and fall by the electric push rod so that the clamping plate can clamp the B-pillar thermoformed parts on the rotating roller.

[0012] Furthermore, the clamping plate is a hollow structure, an opening is provided at the bottom end of the clamping plate body, and a plurality of telescopic clamping rods are connected to the inside of the clamping plate cavity. In the present invention, the plurality of telescopic clamping rods are accommodated by the cavity on the clamping plate body, and the telescopic clamping rods can be extended through the opening at the bottom end of the clamping plate body.

[0013] Furthermore, the telescopic clamping rod includes an inner rod connected to the cavity of the clamping plate, and a sliding outer rod sleeved on the outside of one end of the inner rod. A spring is sleeved on the outside of the inner rod, one end of the spring abuts against the top surface of the sliding outer rod, and the other end of the spring abuts against the inner surface of the clamping plate cavity. In the present invention, the sliding outer rod is sleeved on the outside of the rod body of the inner rod, so that the telescopic clamping rod can be telescoped.

[0014] Furthermore, clamps are connected at both ends of the cavity of the clamping plate, and multiple telescopic clamping rods are located between the two clamps. The longitudinal section of the clamp is L-shaped. In the present invention, when the two clamps are close to each other, the clamps are used to clamp the multiple telescopic clamping rods so that the multiple telescopic clamping rods further fit the outer surface of the part.

[0015] Furthermore, the sliding frame is a hollow structure, and guide grooves for the sliding top end of the splint are provided at both ends of the inner side of the sliding frame body. An extrusion plate is connected to the cavity of the sliding frame, and the extrusion plate is used to abut against the splint. The top end of the extrusion plate and the bottom end of the splint are both provided with chamfered surfaces. In the present invention, when the splint follows the lifting and lowering of the clamping plate, the guide groove provides a movable space for the lifting and lowering of the splint.

[0016] Furthermore, a symmetrically arranged partition is connected to the top of the inner cavity of the sliding frame, a first gas pipe is connected to both sides of the sliding frame, a second gas pipe is connected to the bottom end of the sliding frame, the bottom end of the second gas pipe is connected to the clamping plate and is embedded between a plurality of telescopic clamping rods, and a one-way valve is connected to the inside of the first gas pipe and the second gas pipe. In the present invention, when the sliding frame is translated to adjust its position and approaches the welding position, the sliding frame squeezes the smoke generated during welding, so that the smoke pushes open the one-way valve on the first gas pipe and enters the inner cavity of the sliding frame and between the two partitions.

[0017] According to the technical solution of the B-pillar thermoforming parts welding device above, a B-pillar thermoforming parts welding method is also provided, comprising the following steps:

[0018] Step 1: Place the B-pillar hot-formed parts on the rotating rollers and transport them to the vicinity of the welding robot through the rotating rollers;

[0019] Step 2: The clamping mechanism is driven to translate by the displacement mechanism so that the clamping mechanism can be moved to the vicinity of the welding position.

[0020] Step 3: Clamp the parts on the rotating roller by a clamping mechanism to reduce the displacement of the parts, and weld the clamped parts by a welding robot.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Firstly, when the telescopic clamping rod on the clamping plate of the present invention descends and fits against the surface of the part to form a groove that fits against the surface of the part, the smoke in the groove is squeezed to push the one-way valve on the second gas pipe and enter the second gas pipe. Since the second gas pipe is connected to the inner cavity of the sliding frame, the smoke enters the inner cavity of the sliding frame for collection, thereby reducing the retention of smoke in the working environment.

[0023] Secondly, when the sliding frame is translated to adjust its position and approaches the welding position, the sliding frame squeezes the smoke generated during welding, so that the smoke pushes open the one-way valve on the first gas pipe and enters the inner cavity of the sliding frame and is collected between the two partitions.

[0024] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 A top view of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the positioning assembly of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the telescopic clamping rod of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the sliding frame of the present invention;

[0030] Figure 6 for Figure 5 Enlarged view of the structure of area A in the middle.

[0031] In the figure: 1. welding machine; 2. transmission component; 21. cavity; 22. rotating roller; 3. positioning component; 31. displacement mechanism; 311. sliding cavity; 312. screw rod; 313. through hole; 32. clamping mechanism; 321. sliding frame; 3211. guide groove; 3212. extrusion plate; 3213. partition; 3214. first air pipe; 3215. second air pipe; 322. electric push rod; 323. clamping plate; 3231. clamping plate; 324. telescopic clamping rod; 3241. inner rod; 3242. sliding outer rod; 3243. spring. DETAILED DESCRIPTION

[0032] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] For examples, please refer to the attached Figure 1-6 A B-pillar thermoforming parts welding device includes a welding machine 1, and a transmission component 2 and a positioning component 3 are connected to the top of the welding machine 1.

[0036] The conveying assembly 2 includes a cavity 21 disposed at the top of the welding machine 1 and a roller conveyor belt connected to the cavity 21 . The roller conveyor belt is composed of a plurality of rotating rollers 22 rotatably connected to the cavity 21 .

[0037] The positioning assembly 3 includes a displacement mechanism 31 disposed on both sides of the cavity 21 , and a clamping mechanism 32 connected to the displacement mechanism 31 and used for clamping the B-pillar thermoformed part.

[0038] When using the B-pillar thermoformed parts welding device, the B-pillar thermoformed parts are placed on the rotating roller 22 and transported to the vicinity of the welding robot through the rotating roller 22. The clamping mechanism 32 is driven to translate by the displacement mechanism 31 so that the clamping mechanism 32 can be moved to the vicinity of the welding position. The parts on the rotating roller 22 are clamped by the clamping mechanism 32 to reduce the displacement of the parts, and the clamped parts are welded by the welding robot.

[0039] Optional, such as Figure 1 As shown, the displacement mechanism 31 includes a sliding cavity 311 disposed at the top of the welding machine 1 , and a screw rod 312 rotatably connected to the inside of the sliding cavity 311 .

[0040] In this embodiment, the sliding cavity 311 on the welding machine 1 is used to accommodate the screw rod 312 through the sliding cavity 311 and guide the sliding frame 321 to slide along the cavity of the sliding cavity 311 .

[0041] Optional, such as Figure 1 As shown, the clamping mechanism 32 includes a sliding frame 321 slidably connected to the two sliding chambers 311 , one end of the sliding frame 321 is connected to the screw rod 312 through a nut, and the other end of the sliding frame 321 is provided with a through hole 313 for the screw rod 312 to pass through.

[0042] In this embodiment, since the screw rod 312 and the sliding frame 321 are connected by a nut, when the motor drives the screw rod 312 connected to its output shaft to rotate, it drives the sliding frame 321 to slide along the cavity of the sliding cavity 311. By adjusting the position of the sliding frame 321, the clamping mechanism 32 on the sliding frame 321 can be adjusted according to the welding position to facilitate the welding work of the welding robot.

[0043] Optional, such as Figure 1 and Figure 3 As shown, the clamping mechanism 32 further includes an electric push rod 322 connected to the upper surface of the sliding frame 321 , and a clamping plate 323 connected to the execution end of the electric push rod 322 .

[0044] In this embodiment, the electric push rod 322 drives the clamping plate 323 to rise and fall, so that the clamping plate 323 clamps the B-pillar thermoformed part on the rotating roller 22, thereby reducing the movement of the part during the welding process, so as to facilitate the welding of the part.

[0045] Optional, such as Figure 1 and Figure 3 As shown, the clamping plate 323 is a hollow structure, an opening is provided at the bottom end of the clamping plate 323 , and a plurality of telescopic clamping rods 324 are connected to the interior of the clamping plate 323 cavity.

[0046] In this embodiment, a plurality of telescopic clamping rods 324 are accommodated by the cavity on the clamping plate 323, and the telescopic clamping rods 324 are extended through the opening at the bottom end of the clamping plate 323. By extending and retracting the telescopic clamping rods 324, after the telescopic clamping rods 324 follow the clamping plate 323 to descend, the rod bodies of the telescopic clamping rods 324 can fit the surface of the part.

[0047] Optional, such as Figure 1 and Figure 3 As shown, the telescopic clamping rod 324 includes an inner rod 3241 connected to the cavity of the clamping plate 323, and a sliding outer rod 3242 sleeved on the outside of one end of the inner rod 3241, and a spring 3243 is sleeved on the outside of the inner rod 3241, one end of the spring 3243 abuts against the top surface of the sliding outer rod 3242, and the other end of the spring 3243 abuts against the inner surface of the cavity of the clamping plate 323.

[0048] In this embodiment, the sliding outer rod 3242 is sleeved on the outside of the rod body of the inner rod 3241, so that the telescopic clamping rod 324 can be telescopic.

[0049] The inner rod 3241 provides guidance for the spring 3243 outside the rod body, and the spring 3243 pushes the sliding outer rod 3242 abutting thereon, so that the telescopic clamping rod 324 can be automatically extended to maintain its abutment with the part.

[0050] Optional, such as Figure 1 and Figure 5 As shown, two ends of the cavity of the clamping plate 323 are connected with clamping plates 3231 , and a plurality of telescopic clamping rods 324 are located between the two clamping plates 3231 . The longitudinal section of the clamping plate 3231 is L-shaped.

[0051] In this embodiment, when the two clamps 3231 are close to each other, the clamps 3231 are used to clamp the multiple telescopic clamping rods 324, so that the multiple telescopic clamping rods 324 further fit the outer surface of the part, thereby further fixing the part and improving the stability when clamping the part.

[0052] Optional, such as Figure 1 and Figure 5 As shown, the sliding frame 321 is a hollow structure, and the two ends of the inner side of the sliding frame 321 are provided with guide grooves 3211 for the top end of the clamping plate 3231 to slide. The cavity of the sliding frame 321 is connected to an extrusion plate 3212, which is used to abut against the clamping plate 3231, and the top end of the extrusion plate 3212 and the bottom end of the clamping plate 3231 are both provided with chamfered surfaces.

[0053] In this embodiment, when the clamping plate 3231 follows the clamping plate 323 to rise and fall, the guide groove 3211 provides a movable space for the clamping plate 3231 to rise and fall.

[0054] Since both the extrusion plate 3212 and the clamping plate 3231 are provided with chamfered surfaces, as the clamping plate 3231 descends, the clamping plates 3231 are pushed by the extrusion plate 3212 and move closer to each other through relative sliding between the two chamfered surfaces.

[0055] When the clamping plate 3231 rises, the squeezed telescopic clamping rod 324 returns to the vertical state, thereby driving the clamping plate 3231 to return to the original position through the telescopic clamping rod 324 .

[0056] Optional, such as Figure 1 and Figure 5 As shown, a symmetrically arranged partition 3213 is connected to the top of the inner cavity of the sliding frame 321, a first air pipe 3214 is connected to both sides of the sliding frame 321, a second air pipe 3215 is connected to the bottom end of the sliding frame 321, the bottom end of the second air pipe 3215 is connected to the clamping plate 323 and is embedded between a plurality of telescopic clamping rods 324, and a one-way valve is connected to the inside of the first air pipe 3214 and the second air pipe 3215.

[0057] In this embodiment, when the sliding frame 321 is translated to adjust its position and approaches the welding position, the sliding frame 321 squeezes the smoke generated during welding, so that the smoke pushes open the one-way valve on the first gas pipe 3214 and enters the inner cavity of the sliding frame 321 and between the two partitions 3213.

[0058] When the telescopic clamping rod 324 on the clamping plate 323 descends and fits against the surface of the part to form a groove that fits the surface of the part, the smoke in the groove is squeezed and pushes the one-way valve on the second gas pipe 3215 to enter the second gas pipe 3215. Since the second gas pipe 3215 is connected to the inner cavity of the sliding frame 321, the smoke enters the inner cavity.

[0059] The inner cavity of the sliding frame 321 is provided with a filter element to filter smoke.

[0060] The specific operation mode of the present invention is as follows:

[0061] When using the B-pillar thermoformed parts welding device, the B-pillar thermoformed parts are placed on the rotating roller 22 and transported to the vicinity of the welding robot through the rotating roller 22. The clamping mechanism 32 is driven to translate by the displacement mechanism 31 so that the clamping mechanism 32 can be moved to the vicinity of the welding position. The parts on the rotating roller 22 are clamped by the clamping mechanism 32 to reduce the displacement of the parts, and the clamped parts are welded by the welding robot.

[0062] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A B-pillar thermoforming parts welding device, comprising a welding machine (1), characterized in that: The top end of the welding machine tool (1) is connected to a transmission component (2) and a positioning component (3); The conveying assembly (2) comprises a cavity (21) arranged at the top of the welding machine (1), and a roller conveyor belt connected to the cavity (21), wherein the roller conveyor belt is composed of a plurality of rotating rollers (22) rotatably connected to the cavity (21); The positioning assembly (3) comprises a displacement mechanism (31) disposed on both sides of the cavity (21), and a clamping mechanism (32) connected to the displacement mechanism (31) and used for clamping a B-pillar thermoformed part.

2. The B-pillar hot forming parts welding device according to claim 1, characterized in that: The displacement mechanism (31) comprises a sliding cavity (311) arranged at the top end of the welding machine tool (1), and a screw rod (312) rotatably connected to the inside of the sliding cavity (311).

3. The B-pillar hot forming parts welding device according to claim 1, characterized in that: The clamping mechanism (32) comprises a sliding frame (321) slidably connected to the two sliding chambers (311); one end of the sliding frame (321) is connected to the screw rod (312) via a nut; the other end of the sliding frame (321) is provided with a through hole (313) for the screw rod (312) to pass through.

4. The B-pillar hot forming parts welding device according to claim 1, characterized in that: The clamping mechanism (32) further comprises an electric push rod (322) connected to the upper surface of the sliding frame (321), and a clamping plate (323) connected to the execution end of the electric push rod (322).

5. The B-pillar hot forming parts welding device according to claim 4, characterized in that: The clamping plate (323) is a hollow structure, and an opening is provided at the bottom end of the plate body of the clamping plate (323). A plurality of telescopic clamping rods (324) are connected to the interior of the cavity of the clamping plate (323).

6. The B-pillar hot forming parts welding device according to claim 5, characterized in that: The telescopic clamping rod (324) includes an inner rod (3241) connected to the cavity of the clamping plate (323), and a sliding outer rod (3242) sleeved on the outside of one end of the inner rod (3241), and a spring (3243) is sleeved on the outside of the inner rod (3241), one end of the spring (3243) abuts against the top surface of the sliding outer rod (3242), and the other end of the spring (3243) abuts against the inner surface of the cavity of the clamping plate (323).

7. The B-pillar hot forming parts welding device according to claim 6, characterized in that: Clamps (3231) are connected to both ends of the cavity of the clamping plate (323), and the plurality of telescopic clamping rods (324) are located between the two clamps (3231). The longitudinal section of the clamp (3231) is L-shaped.

8. The B-pillar hot forming parts welding device according to claim 7, characterized in that: The sliding frame (321) is a hollow structure. The two ends of the inner side of the sliding frame (321) are provided with guide grooves (3211) for the top end of the clamping plate (3231) to slide. The cavity of the sliding frame (321) is connected with an extrusion plate (3212). The extrusion plate (3212) is used to abut against the clamping plate (3231). The top end of the extrusion plate (3212) and the bottom end of the clamping plate (3231) are both provided with chamfered surfaces.

9. The B-pillar hot forming parts welding device according to claim 8, characterized in that: A symmetrically arranged partition plate (3213) is connected to the top of the inner cavity of the sliding frame (321), a first air pipe (3214) is connected to both sides of the sliding frame (321), a second air pipe (3215) is connected to the bottom end of the sliding frame (321), the bottom end of the second air pipe (3215) is connected to the clamping plate (323) and is embedded between a plurality of telescopic clamping rods (324), and a one-way valve is connected to the inside of each of the first air pipe (3214) and the second air pipe (3215).

10. A B-pillar thermoformed parts welding method, using the B-pillar thermoformed parts welding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing the B-pillar hot-formed part on a rotating roller (22), and conveying it to the vicinity of a welding robot via the rotating roller (22); Step 2: The displacement mechanism (31) drives the clamping mechanism (32) to move horizontally, so that the clamping mechanism (32) can be moved to the vicinity of the welding position; Step 3: Clamp the parts on the rotating roller (22) by means of the clamping mechanism (32) to reduce the displacement of the parts, and weld the clamped parts by means of the welding robot.

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