An integrated welding device for automobile body assembly

Abstract

The present invention provides an integrated welding device for automobile body assembly, which relates to the technical field of automobile body assembly, including: a support frame seat; six strip seats are connected to the top of the support frame seat, and a driving pulley and a driven pulley are arranged inside the support frame seat; a synchronous transmission belt is arranged inside the support frame seat, one end of the synchronous transmission belt is connected to the driving pulley, and the other end of the synchronous transmission belt is connected to the driven pulley, and the bottom of the strip seat is connected to the synchronous transmission belt; a spline drive shaft and a long screw are connected inside the support frame seat. The present invention can adaptively adjust the position of the pneumatic clamp so that it can better adapt to the assembly and welding requirements of different types of automobile bodies, showing wide applicability and excellent general performance. It solves the problem that the existing welding equipment for automobile body assembly is customized according to a single type of automobile body, can only be applied to the welding and fixing requirements of this type of automobile body, and has shortcomings in terms of versatility.

Description

Technical Field

[0001] The invention relates to the technical field of automobile body assembly, and in particular to an integrated welding device for automobile body assembly. Background Art

[0002] On the automobile production line, body assembly is the basis of automobile manufacturing, including the assembly and connection of the body frame, the connection between the frame and the shell, etc.; and in order to improve the stability of the overall structure of the body, the assembly and connection methods are usually welding and riveting, especially the assembly method of the body frame components, which is generally completed by welding.

[0003] For example, the Chinese patent "CN110625304A A frame welding device and welding method thereof" uses a first fixing device and a second fixing device to cooperate and fix the left rod, the cross rod and the right rod; the welding robot is located on the rear side of the frame; the welding robot is used to weld the left rod, the cross rod and the right rod together; the control system is used to control the actions of the first fixing device, the second fixing device and the welding robot respectively; further improve the clamping firmness and clamping comprehensiveness; further improve the supporting strength to facilitate stable welding; and further improve the welding efficiency and welding quality.

[0004] The existing welding equipment for automobile body assembly is customized according to a single type of automobile body. During use, it can only be applied to the welding and fixing needs of this type of automobile body. When welding of other types of automobile bodies is required, it is necessary to re-customize the matching welding and fixing equipment, which is costly and time-consuming, and easily affects the delivery schedule. Summary of the invention

[0005] The present disclosure relates to an integrated welding device for automobile body assembly, which solves the problem that the existing welding device for automobile body assembly is customized according to a single type of automobile body and can only be used for the welding and fixing needs of this type of automobile body during use. When welding of other types of automobile bodies is required, it is necessary to re-customize the welding and fixing equipment to match it, which requires high cost and takes a long time to customize the device, which is easy to affect the delivery progress.

[0006] In the first aspect of the present disclosure, an integrated welding device for assembling an automobile body is provided, which specifically comprises: a support frame seat; six strip seats are connected to the top of the support frame seat, and a driving pulley and a driven pulley are arranged inside the support frame seat; a synchronous transmission belt is arranged inside the support frame seat, one end of the synchronous transmission belt is connected to the driving pulley, and the other end of the synchronous transmission belt is connected to the driven pulley, and the bottom of the strip seat is connected to the synchronous transmission belt; a spline drive shaft and a long screw are connected to the inside of the support frame seat, and a movable switching block is installed inside the support frame seat, and the long screw is connected to the movable switching block; a pinion is connected to the inside of the movable switching block, and the spline drive shaft is connected to the pinion, and the pinion is connected to the driving pulley; a limiting bolt is connected to the end of the strip seat, and two movable supports are connected to the top of the strip seat; two short screws are connected to the top of the strip seat, and the short screws are connected to the movable support; a pneumatic clamp is installed on the top of the movable support, and a positioning bolt is connected to the bottom of the pneumatic clamp.

[0007] Furthermore, two protrusions are arranged on the outside of the movable support, and two L-shaped connecting grooves are arranged on the bottom of the pneumatic clamp, and the protrusions are connected to the L-shaped connecting grooves.

[0008] Furthermore, a threaded blind hole is provided inside the movable support, and an external connecting hole is provided at the bottom of the pneumatic clamp, the external connecting hole is connected to the threaded blind hole, the positioning bolt is connected to the external connecting hole, and the end of the positioning bolt is threadedly connected to the threaded blind hole. The pneumatic clamp is divided into different height specifications and can be replaced according to the different types of automobile bodies. When the pneumatic clamp is installed on the top of the movable support, the protrusion is located at the innermost end of the L-shaped connecting groove, and the threaded blind hole is connected to the external connecting hole. The positioning bolt is connected to the external connecting hole and the threaded blind hole, which has a fixing effect on the pneumatic clamp.

[0009] Furthermore, two movable sliding holes are arranged inside the strip-shaped seat, and a guide block is arranged at the bottom of the movable support, and the guide block is slidably connected to the movable sliding hole.

[0010] Furthermore, the short screw is rotatably connected to the strip seat, and a screw hole C is provided inside the movable support. The short screw is threadedly connected to the screw hole C. The short screw can be rotated according to the requirements of automobile body assembly and welding, and the movable support is driven by the short screw to move left and right for adjustment, thereby changing the position of the two pneumatic clamps on the top of the strip seat, so that the pneumatic clamps are close to the edge of the automobile body to clamp and fix the automobile body.

[0011] Furthermore, guide ridges are provided on both sides of the top of the support frame seat, and guide grooves are provided at both ends of the strip seat, and the guide ridges are slidably connected in the guide grooves.

[0012] Furthermore, a screw hole A is provided at the end of the strip-shaped seat, and a limiting bolt is threadedly connected in the screw hole A, and an end of the limiting bolt contacts the guide convex strip.

[0013] Furthermore, the driving pulley is rotatably connected to the support frame seat, the driven pulley is rotatably connected to the support frame seat, the driving pulley is transmission-connected to the driven pulley through a synchronous transmission belt, the driving pulley drives the strip seat to move forward and backward through the synchronous transmission belt, the distance between two adjacent strip seats is changed, the adjustment dimension of the pneumatic clamp is increased, the requirements of assembly and welding of different types of automobile bodies are better met, and the limiting bolts are used to limit and fix the strip seat to avoid displacement of the strip seat.

[0014] Furthermore, the spline drive shaft is rotatably connected to the support frame seat, the pinion is rotatably connected to the movable switching block, a spline hole is arranged inside the pinion, the spline drive shaft slides through the spline hole, a large gear is arranged outside the driving pulley, and the pinion is meshed with the large gear.

[0015] Furthermore, the long screw is rotatably connected to the support frame seat, and a screw hole B is provided inside the movable switching block. The long screw is threadedly connected to the screw hole B. When the strip seat needs to be moved and adjusted, the long screw is rotated, and the long screw drives the movable switching block to move. The movable switching block drives the small gear to switch the position, so that the small gear is engaged with the large gear corresponding to the strip seat, and the spline drive shaft is rotated. The spline drive shaft drives the active pulley to rotate through the small gear, thereby realizing the forward and backward movement adjustment operation of the strip seat.

[0016] The present invention provides an integrated welding device for automobile body assembly, which has the following beneficial effects: When the present invention is used, the pneumatic clamp is designed with various height specifications to meet the body requirements of different models. When replacement is required, the appropriate pneumatic clamp only needs to be installed on the top of the movable support. At this time, the protrusion is just located at the innermost end of the L-shaped connecting groove, and the threaded blind hole and the external connecting hole are in a connected state. The two are connected and fixed by positioning bolts, which ensures the stability of the pneumatic clamp and greatly simplifies its disassembly and assembly process.

[0017] In addition, a sliding fit design is adopted between the guide block and the movable sliding hole to provide precise guidance for the movement of the movable support. According to the specific needs of the automobile body assembly and welding, the position can be adjusted by rotating the short screw to drive the movable support to move left and right. The position of the two pneumatic clamps on the top of the strip seat can be changed, so that the pneumatic clamps are closer to the edge of the automobile body, thereby achieving effective clamping and fixation of the automobile body and meeting the needs of the pneumatic clamps during the assembly and welding process.

[0018] In addition, the sliding fit design of the guide ridges and guide grooves provides precise movement guides for the strip seat. Through the synergistic action of the active pulley and the synchronous transmission belt, the strip seat can be flexibly moved forward and backward, thereby effectively adjusting the interval distance between two adjacent strip seats, significantly enhancing the adjustment dimension of the pneumatic clamp, enabling it to better adapt to the assembly and welding needs of different types of automobile bodies, showing wide applicability and excellent general performance; after the strip seat is adjusted, tighten the limit bolt so that the end of the limit bolt contacts the guide ridge, which has a fixing effect on the strip seat and ensures the stability of the strip seat.

[0019] In addition, when the strip seat needs to be moved and adjusted, it is only necessary to turn the long screw to drive the small gear to move its position through the movable switching block. After adjusting to the appropriate position, the small gear engages with the large gear corresponding to the strip seat, and then the spline drive shaft is rotated. The spline drive shaft will drive the active pulley to rotate through the small gear, thereby achieving precise adjustment of the strip seat in the front and rear directions. The whole process is simple and quick to operate, which greatly improves work efficiency.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture: Figure 1 The overall axial side structure schematic diagram of the present application is shown; Figure 2 A schematic diagram of the driving pulley, driven pulley and synchronous belt transmission structure of the present application is shown; Figure 3 A schematic diagram of the axial side structure of the support frame seat of the present application is shown; Figure 4 A schematic diagram of the connection structure between the strip seat and the movable support of the present application is shown; Figure 5 A schematic diagram of the disassembly structure of the strip seat and the limiting bolt of the present application is shown; Figure 6 The schematic diagram of the structure of the driving pulley shaft side of the present application is shown; Figure 7 A schematic diagram of the connection structure between the movable switching block and the pinion gear of the present application is shown; Figure 8A schematic diagram of the connection structure of the movable support, pneumatic clamp and positioning bolt of the present application is shown; Fig. 9 A schematic diagram of the disassembled structure of the movable support, pneumatic clamp and positioning bolt of the present application is shown.

[0024] Reference numerals list 1. Support frame seat; 101. Guide convex strip; 2. Strip seat; 201. Guide groove; 202. Screw hole A; 203. Movable sliding hole; 3. Driving pulley; 301. Big gear; 4. Driven pulley; 5. Synchronous transmission belt; 6. Spline drive shaft; 7. Long screw; 8. Movable switching block; 801. Screw hole B; 9. Pinion; 901. Spline hole; 10. Limit bolt; 11. movable support; 1101. guide block; 1102. screw hole C; 1103. protrusion; 1104. threaded blind hole; 12. Short screw; 13. Pneumatic clamp; 1301. L-shaped connecting groove; 1302. External connecting hole; 14. Positioning bolt. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0026] Example 1: Please refer to Figures 1 to 9 : The present invention proposes an integrated welding device for assembling an automobile body, comprising: a support frame seat 1; six strip seats 2 are connected to the top of the support frame seat 1, and a driving pulley 3 and a driven pulley 4 are arranged inside the support frame seat 1; a synchronous transmission belt 5 is arranged inside the support frame seat 1, one end of the synchronous transmission belt 5 is connected to the driving pulley 3, and the other end of the synchronous transmission belt 5 is connected to the driven pulley 4, and the bottom of the strip seat 2 is connected to the synchronous transmission belt 5; a spline drive shaft 6 and a long Screw 7, a movable switching block 8 is installed inside the support frame seat 1, and the long screw 7 is connected to the movable switching block 8; a pinion 9 is connected inside the movable switching block 8, a spline drive shaft 6 is connected to the pinion 9, and the pinion 9 is connected to the driving pulley 3; a limiting bolt 10 is connected to the end of the strip seat 2, and two movable supports 11 are connected to the top of the strip seat 2; two short screws 12 are connected to the top of the strip seat 2, and the short screws 12 are connected to the movable support 11; a pneumatic clamp 13 is installed on the top of the movable support 11, and the pneumatic clamp The bottom of the pneumatic clamp 13 is connected with a positioning bolt 14; the movable support 11 is provided with two protrusions 1103 on the outside, and the pneumatic clamp 13 is provided with two L-shaped connecting grooves 1301 on the bottom, and the protrusions 1103 are connected to the L-shaped connecting grooves 1301; the movable support 11 is provided with a threaded blind hole 1104 on the inside, and the pneumatic clamp 13 is provided with an external connecting hole 1302 on the bottom, and the external connecting hole 1302 is connected to the threaded blind hole 1104, and the positioning bolt 14 is connected to the external connecting hole 1302, and the end of the positioning bolt 14 is threadedly connected to The pneumatic clamp 13 is divided into different height specifications, and the pneumatic clamp 13 can be replaced according to the different types of automobile bodies. When the pneumatic clamp 13 is installed on the top of the movable support 11, the protrusion 1103 is located at the innermost end of the L-shaped connecting groove 1301, and the threaded blind hole 1104 is connected with the external connecting hole 1302. The positioning bolt 14 is connected to the external connecting hole 1302 and the threaded blind hole 1104, which has a fixing effect on the pneumatic clamp 13 and makes the disassembly and assembly of the pneumatic clamp 13 more convenient.

[0027] In the embodiment of the present disclosure, two movable sliding holes 203 are provided inside the strip seat 2, a guide block 1101 is provided at the bottom of the movable support 11, the guide block 1101 is slidably connected to the movable sliding hole 203, the short screw 12 is rotatably connected to the strip seat 2, a screw hole C1102 is provided inside the movable support 11, and the short screw 12 is threadedly connected to the screw hole C1102; By adopting the above technical solution, the guide block 1101 and the movable sliding hole 203 are slidably matched to play a guiding effect on the movement of the movable support 11. According to the requirements of automobile body assembly and welding, the short screw 12 can be rotated to drive the movable support 11 to move left and right and adjust through the short screw 12, thereby changing the positions of the two pneumatic clamps 13 on the top of the strip seat 2, so that the pneumatic clamps 13 are close to the edge of the automobile body, and the automobile body is clamped and fixed to meet the requirements of automobile body assembly and welding.

[0028] In the disclosed embodiment, guide ridges 101 are provided on both sides of the top of the support frame seat 1, guide grooves 201 are provided at both ends of the strip seat 2, the guide ridges 101 are slidably connected in the guide grooves 201, a screw hole A202 is provided at the end of the strip seat 2, a limit bolt 10 is threadedly connected in the screw hole A202, the end of the limit bolt 10 is in contact with the guide ridge 101, the driving pulley 3 is rotatably connected to the support frame seat 1, the driven pulley 4 is rotatably connected to the support frame seat 1, and the driving pulley 3 is transmission-connected to the driven pulley 4 through a synchronous transmission belt 5; By adopting the above technical scheme, the guide ridge 101 and the guide groove 201 are slidably matched to guide the movement of the strip seat 2. The strip seat 2 is driven to move forward and backward through the active pulley 3 and the synchronous transmission belt 5, and the interval between two adjacent strip seats 2 is changed. The adjustment dimension of the pneumatic clamp 13 is increased to better meet the assembly and welding requirements of different types of automobile bodies. It has wide applicability and strong general performance. After the strip seat 2 is adjusted, the limit bolt 10 is tightened to make the end of the limit bolt 10 contact with the guide ridge 101, which has a fixing effect on the strip seat 2 and ensures the stability of the state of the strip seat 2.

[0029] Embodiment 2, on the basis of embodiment 1, the spline drive shaft 6 is rotatably connected to the support frame seat 1, the pinion gear 9 is rotatably connected to the movable switching block 8, a spline hole 901 is provided inside the pinion gear 9, the spline drive shaft 6 slides through the spline hole 901, a large gear 301 is provided outside the active pulley 3, the pinion gear 9 is meshed with the large gear 301, the long screw 7 is rotatably connected to the support frame seat 1, a screw hole B801 is provided inside the movable switching block 8, and the long screw 7 is threadedly connected to the screw hole B801; By adopting the above technical solution, when the strip seat 2 needs to be moved and adjusted, the long screw 7 is rotated, and the long screw 7 drives the movable switching block 8 to move, and the movable switching block 8 drives the small gear 9 to switch the position, so that the small gear 9 is meshed with the large gear 301 corresponding to the strip seat 2, and the spline drive shaft 6 is rotated. The spline drive shaft 6 drives the active pulley 3 to rotate through the small gear 9, thereby realizing the forward and backward movement adjustment operation of the strip seat 2, and the regulation is more convenient.

[0030] The working principle of this embodiment is as follows: first, the pneumatic clamp 13 is replaced according to the different types of automobile bodies. When the pneumatic clamp 13 is installed on the top of the movable support 11, the protrusion 1103 is located at the innermost end of the L-shaped connecting groove 1301, and the threaded blind hole 1104 is connected to the external connecting hole 1302. The positioning bolt 14 is connected to the external connecting hole 1302 and the threaded blind hole 1104 to fix the pneumatic clamp 13; next, the long screw 7 is rotated, and the long screw 7 drives the movable switching block 8 to move, and the movable switching block 8 drives the small gear 9 to switch the position, so that the small gear 9 is meshed with the large gear 301 corresponding to the strip seat 2, and the rotation The spline drive shaft 6 drives the active pulley 3 to rotate through the pinion 9, thereby realizing the forward and backward movement adjustment operation of the strip seat 2 and changing the spacing distance between two adjacent strip seats 2; after the strip seat 2 is adjusted, tighten the limit bolt 10 so that the end of the limit bolt 10 contacts the guide convex strip 101, thereby fixing the strip seat 2; finally, rotate the short screw 12, and drive the movable support 11 to move left and right through the short screw 12 to change the position of the two pneumatic clamps 13 on the top of the strip seat 2, so that the pneumatic clamps 13 are close to the edge of the car body, and the car body is clamped and fixed to meet the assembly and welding requirements of the car body.

[0031] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0032] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0033] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An integrated welding device for automobile body assembly, comprising: A support frame seat (1); characterized in that six strip seats (2) are connected to the top of the support frame seat (1), and a driving pulley (3) and a driven pulley (4) are arranged inside the support frame seat (1); a synchronous transmission belt (5) is arranged inside the support frame seat (1), one end of the synchronous transmission belt (5) is connected to the driving pulley (3), and the other end of the synchronous transmission belt (5) is connected to the driven pulley (4), and the bottom of the strip seat (2) is connected to the synchronous transmission belt (5); a spline drive shaft (6) and a long screw (7) are connected inside the support frame seat (1), and a movable switching block (8) is installed inside the support frame seat (1). ), the long screw (7) is connected to the movable switching block (8); the movable switching block (8) is internally connected with a pinion (9), the spline drive shaft (6) is connected to the pinion (9), and the pinion (9) is connected to the driving pulley (3); the end of the strip seat (2) is connected to a limit bolt (10), and the top of the strip seat (2) is connected to two movable supports (11); the top of the strip seat (2) is connected to two short screws (12), and the short screws (12) are connected to the movable support (11); the top of the movable support (11) is installed with a pneumatic clamp (13), and the bottom of the pneumatic clamp (13) is connected with a positioning bolt (14).

2. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The movable support (11) is provided with two protrusions (1103) on the outside, and the pneumatic clamp (13) is provided with two L-shaped connecting grooves (1301) at the bottom, and the protrusions (1103) are connected to the L-shaped connecting grooves (1301).

3. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The movable support (11) is provided with a threaded blind hole (1104) inside, and the bottom of the pneumatic clamp (13) is provided with an external connection hole (1302), the external connection hole (1302) is connected to the threaded blind hole (1104), the positioning bolt (14) is connected to the external connection hole (1302), and the end of the positioning bolt (14) is threadedly connected to the threaded blind hole (1104).

4. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: Two movable sliding holes (203) are arranged inside the strip-shaped seat (2), and a guide block (1101) is arranged at the bottom of the movable support (11), and the guide block (1101) is slidably connected to the movable sliding hole (203).

5. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The short screw rod (12) is rotatably connected to the strip-shaped seat (2); a screw hole C (1102) is provided inside the movable support (11), and the short screw rod (12) is threadedly connected inside the screw hole C (1102).

6. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The top two sides of the support frame seat (1) are provided with guide convex strips (101), and the two ends of the strip seat (2) are provided with guide grooves (201), and the guide convex strips (101) are slidably connected in the guide grooves (201).

7. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The end of the strip-shaped seat (2) is provided with a screw hole A (202), the limiting bolt (10) is threadedly connected in the screw hole A (202), and the end of the limiting bolt (10) is in contact with the guide convex strip (101).

8. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The driving pulley (3) is rotationally connected to the support frame seat (1), the driven pulley (4) is rotationally connected to the support frame seat (1), and the driving pulley (3) is transmission-connected to the driven pulley (4) via a synchronous transmission belt (5).

9. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The spline drive shaft (6) is rotatably connected to the support frame seat (1), the pinion gear (9) is rotatably connected to the movable switching block (8), a spline hole (901) is arranged inside the pinion gear (9), the spline drive shaft (6) slides through the spline hole (901), a large gear (301) is arranged outside the driving pulley (3), and the pinion gear (9) meshes with the large gear (301).

10. The integrated welding equipment for automobile body assembly according to claim 1, characterized in that: The long screw rod (7) is rotatably connected to the support frame seat (1); a screw hole B (801) is provided inside the movable switching block (8); and the long screw rod (7) is threadedly connected to the screw hole B (801).

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