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, and includes: a support frame base; six strip-shaped seats are connected to the top of the support frame base, and a driving pulley and a driven pulley are arranged in the support frame base; a synchronous transmission belt is arranged in the support frame base in an arranged manner, one end of the synchronous transmission belt is connected to the driving pulley, the other end of the synchronous transmission belt is connected to the driven pulley, and the bottom of the strip-shaped seat is connected to the synchronous transmission belt; a spline drive shaft and a long screw are connected inside the support frame base. The present invention can adaptively adjust the position of the pneumatic fixture, so that it can better meet 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 and can only meet the welding and fixing requirements of this type of automobile body, and there are deficiencies in terms of generality.

Description

Technical Field

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

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

[0003] For example, in the Chinese patent "CN110625304A A Frame Welding Device and Its Welding Method", the left rod, cross rod and right rod are fixed by the cooperation of the first fixing device and the second fixing device; the welding robot is located at the rear side of the frame; the welding robot is used to weld the left rod, cross rod and right rod together; the control system is respectively used to control the actions of the first fixing device, the second fixing device and the welding robot; further improving the clamping firmness and comprehensiveness; further enhancing the support strength for stable welding; further improving the welding efficiency and welding quality.

[0004] The existing welding devices for automobile body assembly are customized according to a single type of automobile body. During use, they can only meet the welding and fixing requirements of this type of automobile body. When welding other types of automobile bodies, it is necessary to re-customize the matching welding and fixing devices, which requires a high cost, and the device customization process takes a long time, easily affecting 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 devices for automobile body assembly are customized according to a single type of automobile body. During use, they can only meet the welding and fixing requirements of this type of automobile body. When welding other types of automobile bodies, it is necessary to re-customize the matching welding and fixing devices, which requires a high cost, and the device customization process takes a long time, easily affecting the delivery schedule.

[0006] In the first aspect of the present disclosure, an integrated welding device for automobile body assembly is provided, specifically including: a support frame base; six strip-shaped seats are connected to the top of the support frame base, and a driving pulley and a driven pulley are arranged inside the support frame base; a synchronous transmission belt is arranged inside the support frame base in an arranged manner, one end of the synchronous transmission belt is connected to the driving pulley, the other end of the synchronous transmission belt is connected to the driven pulley, and the bottom of the strip-shaped seat is connected to the synchronous transmission belt; a spline drive shaft and a long screw are connected inside the support frame base, a movable switching block is installed inside the support frame base, and the long screw is connected to the movable switching block; a small gear is connected inside the movable switching block, the spline drive shaft is connected to the small gear, and the small gear is connected to the driving pulley; a limit bolt is connected to the end of the strip-shaped seat, and two movable supports are connected to the top of the strip-shaped seat; two short screws are connected to the top of the strip-shaped seat, and the short screws are connected to the movable supports; 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] Further, two convex blocks are arranged outside the movable support, and two L-shaped connecting grooves are arranged at the bottom of the pneumatic clamp, and the convex blocks are connected in the L-shaped connecting grooves.

[0008] Further, a threaded blind hole is arranged inside the movable support, an externally connected hole is arranged at the bottom of the pneumatic clamp, the externally connected hole is communicated with the threaded blind hole, the positioning bolt is connected in the externally connected hole, the end of the positioning bolt is threadedly connected in the threaded blind hole, the pneumatic clamps are of different height specifications, and can be replaced according to different types of automobile bodies. When the pneumatic clamp is installed on the top of the movable support, the convex block is located at the innermost end of the L-shaped connecting groove, and the threaded blind hole and the externally connected hole are in a communicating state. Connecting the positioning bolt in the externally connected hole and the threaded blind hole plays a role in fixing the pneumatic clamp.

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

[0010] Further, the short screw is rotatably connected to the strip-shaped seat, a screw hole C is arranged inside the movable support, and the short screw is threadedly connected in the screw hole C. According to the requirements of automobile body assembly welding, the short screw can be rotated to drive the movable support to move left and right to adjust, changing the positions of the two pneumatic clamps at the top of the strip-shaped seat, so that the pneumatic clamps are close to the edge part of the automobile body to clamp and fix the automobile body.

[0011] Further, guiding convex strips are arranged on both sides of the top of the support frame base, guiding grooves are arranged at both ends of the strip-shaped seat, and the guiding convex strips are slidably connected in the guiding grooves.

[0012] Further, a screw hole A is arranged at the end of the strip-shaped seat, the limit bolt is threadedly connected in the screw hole A, and the end of the limit bolt contacts the guiding convex strip.

[0013] Furthermore, the driving pulley is rotatably connected to the support frame base, the driven pulley is rotatably connected to the support frame base, and the driving pulley is drivingly connected to the driven pulley through a synchronous drive belt. The driving pulley drives the strip seat to move back and forth through the synchronous drive belt, changing the distance between adjacent strip seats, increasing the adjustment dimension of the pneumatic fixture, better meeting the assembly and welding requirements of different types of automobile bodies, and using a limit bolt to limit and fix the strip seat to prevent the strip seat from shifting.

[0014] Furthermore, the spline drive shaft is rotatably connected to the support frame base, the small gear is rotatably connected to the movable switching block, a spline hole is provided inside the small gear, the spline drive shaft slidably penetrates through the spline hole, a large gear is provided outside the driving pulley, and the small gear meshes with the large gear.

[0015] Furthermore, the long screw rod is rotatably connected to the support frame base, a threaded hole B is provided inside the movable switching block, and the long screw rod is threadedly connected to the threaded hole B. When it is necessary to move and adjust the strip seat, rotate the long screw rod, the long screw rod drives the movable switching block to move, the movable switching block drives the small gear to switch positions, so that the small gear meshes with the large gear corresponding to the strip seat, and rotate the spline drive shaft. The spline drive shaft drives the driving pulley to rotate through the small gear, realizing the front and back 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:

[0017] When the present invention is in use, the pneumatic fixture is designed with a variety of height specifications to meet the body requirements of different vehicle models. When replacement is needed, just install the appropriate pneumatic fixture on the top of the movable support. At this time, the convex block is exactly at the innermost end of the L-shaped connecting groove, and the threaded blind hole and the outer connecting hole are in a communicating state. Connect and fix the two with a positioning bolt to ensure the stability of the pneumatic fixture and greatly simplify its disassembly and assembly process.

[0018] 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 requirements of automobile body assembly and welding, the position can be adjusted by rotating the short screw rod, and then driving the movable support to move left and right, which can change the positions of the two pneumatic fixtures on the top of the strip seat, making the pneumatic fixture closer to the edge part of the automobile body, so as to realize the effective clamping and fixing of the automobile body and meet the needs of the pneumatic fixture during the assembly and welding process.

[0019] In addition, the sliding fit design of the guiding rib and the guiding groove provides precise movement guidance for the strip seat. Through the coordinated action of the driving pulley and the synchronous transmission belt, the strip seat can move flexibly back and forth, effectively adjusting the interval distance between adjacent strip seats, significantly enhancing the adjustment dimension of the pneumatic fixture, enabling it to better adapt to the assembly and welding requirements of different types of automobile bodies, and demonstrating broad 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 guiding rib to fix the strip seat and ensure the stability of the strip seat state.

[0020] In addition, when the strip seat needs to be adjusted, just rotate the long screw rod, and the pinion can be driven to move by the movable switching block. After adjusting to the appropriate position, the pinion meshes with the large gear corresponding to the strip seat, and then rotate the spline drive shaft. The spline drive shaft will drive the driving pulley to rotate through the pinion, thus realizing precise adjustment of the strip seat in the front and back directions. The whole process is simple and fast, greatly improving the work efficiency.

[0021] Other advantages, objectives and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0023] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0024] In the drawings:

[0025] Figure 1 The overall axonometric structure diagram of the present application is shown;

[0026] Figure 2 The transmission structure diagram of the driving pulley, driven pulley and synchronous transmission belt of the present application is shown;

[0027] Figure 3 The axonometric structure diagram of the support frame seat of the present application is shown;

[0028] Figure 4 The connection structure diagram of the strip seat and the movable support of the present application is shown;

[0029] Figure 5 The disassembled structure diagram of the strip seat and the limit bolt of the present application is shown;

[0030] Figure 6 The axonometric structure diagram of the driving pulley of the present application is shown;

[0031] Figure 7 Shows the schematic diagram of the connection structure between the movable switching block and the pinion of the present application;

[0032] Figure 8 Shows the schematic diagram of the connection structure of the movable support, pneumatic fixture and positioning bolt of the present application;

[0033] Figure 9 Shows the schematic diagram of the disassembled structure of the movable support, pneumatic fixture and positioning bolt of the present application.

[0034] List of reference numerals

[0035] 1. Support frame base; 101. Guide rib;

[0036] 2. Strip seat; 201. Guide groove; 202. Screw hole A; 203. Movable sliding hole;

[0037] 3. Driving pulley; 301. Large gear;

[0038] 4. Driven pulley;

[0039] 5. Synchronous drive belt;

[0040] 6. Spline drive shaft;

[0041] 7. Long screw;

[0042] 8. Movable switching block; 801. Screw hole B;

[0043] 9. Pinion; 901. Spline hole;

[0044] 10. Limit bolt;

[0045] 11. Movable support; 1101. Guide block; 1102. Screw hole C; 1103. Bump; 1104. Threaded blind hole;

[0046] 12. Short screw;

[0047] 13. Pneumatic fixture; 1301. L-shaped connecting groove; 1302. Outer connecting hole;

[0048] 14. Positioning bolt. Detailed implementation manners

[0049] For the purposes of making the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0050] Example 1: Please refer to Figures 1 to 9 :

[0051] The present invention provides an integrated welding device for automobile body assembly, including: a support frame base 1; six strip-shaped seats 2 are connected to the top of the support frame base 1, and a driving pulley 3 and a driven pulley 4 are arranged inside the support frame base 1; a synchronous transmission belt 5 is arranged inside the support frame base 1 in an arranged manner, one end of the synchronous transmission belt 5 is connected to the driving pulley 3, the other end of the synchronous transmission belt 5 is connected to the driven pulley 4, and the bottom of the strip-shaped 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 base 1, a movable switching block 8 is installed inside the support frame base 1, and the long screw 7 is connected to the movable switching block 8; a small gear 9 is connected inside the movable switching block 8, the spline drive shaft 6 is connected to the small gear 9, and the small gear 9 is connected to the driving pulley 3; a limit bolt 10 is connected to the end of the strip-shaped seat 2, and two movable supports 11 are connected to the top of the strip-shaped seat 2; two short screws 12 are connected to the top of the strip-shaped seat 2, and the short screws 12 are connected to the movable supports 11; a pneumatic fixture 13 is installed on the top of the movable support 11, and a positioning bolt 14 is connected to the bottom of the pneumatic fixture 13; two convex blocks 1103 are arranged outside the movable support 11, and two L-shaped connecting grooves 1301 are arranged at the bottom of the pneumatic fixture 13, and the convex blocks 1103 are connected in the L-shaped connecting grooves 1301; a threaded blind hole 1104 is arranged inside the movable support 11, an externally connected hole 1302 is arranged at the bottom of the pneumatic fixture 13, the externally connected hole 1302 is communicated with the threaded blind hole 1104, the positioning bolt 14 is connected in the externally connected hole 1302, and the end of the positioning bolt 14 is threadedly connected in the threaded blind hole 1104; the pneumatic fixture 13 is divided into different height specifications, and can be replaced according to different types of automobile bodies. When the pneumatic fixture 13 is installed on the top of the movable support 11, the convex block 1103 is located at the innermost end of the L-shaped connecting groove 1301, and the threaded blind hole 1104 and the externally connected hole 1302 are in a communicating state. Connecting the positioning bolt 14 in the externally connected hole 1302 and the threaded blind hole 1104 can fix the pneumatic fixture 13 and make the disassembly and assembly of the pneumatic fixture 13 more convenient.

[0052] In the embodiment of the present disclosure, two movable sliding holes 203 are arranged inside the strip-shaped seat 2, a guiding block 1101 is arranged at the bottom of the movable support 11, the guiding block 1101 is slidably connected in the movable sliding hole 203, the short screw 12 is rotatably connected to the strip-shaped seat 2, a screw hole C1102 is arranged inside the movable support 11, and the short screw 12 is threadedly connected in the screw hole C1102;

[0053] With the above technical solution, the guiding block 1101 is in sliding fit with the movable sliding hole 203, which plays a role in guiding the movement of the movable support 11. According to the requirements of automobile body assembly and welding, the short screw 12 can be rotated, and the movable support 11 can be driven by the short screw 12 to move left and right for adjustment, changing the positions of the two pneumatic clamps 13 at the top of the strip seat 2, so that the pneumatic clamps 13 are close to the edge part of the automobile body, clamping and fixing the automobile body, and meeting the requirements of automobile body assembly and welding.

[0054] In the embodiment of the present disclosure, guiding ridges 101 are provided on both sides of the top of the support frame seat 1, guiding grooves 201 are provided at both ends of the strip seat 2, the guiding ridges 101 are slidably connected in the guiding grooves 201, a screw hole A202 is provided at the end of the strip seat 2, the limit bolt 10 is threadedly connected in the screw hole A202, and the end of the limit bolt 10 contacts the guiding 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 drivingly connected to the driven pulley 4 through a synchronous transmission belt 5;

[0055] With the above technical solution, the guiding ridge 101 is in sliding fit with the guiding groove 201, which plays a role in guiding the movement of the strip seat 2. The strip seat 2 is driven to move back and forth by the driving pulley 3 through the synchronous transmission belt 5, changing the distance between adjacent two strip seats 2, increasing the adjustment dimension of the pneumatic clamp 13, better meeting the requirements of different types of automobile body assembly and welding, having wide applicability and powerful general performance. After the strip seat 2 is adjusted, the limit bolt 10 is tightened so that the end of the limit bolt 10 contacts the guiding ridge 101, playing a role in fixing the strip seat 2 and ensuring the stability of the state of the strip seat 2.

[0056] In Embodiment 2, on the basis of Embodiment 1, the spline drive shaft 6 is rotatably connected to the support frame seat 1, the small gear 9 is rotatably connected to the movable switching block 8, a spline hole 901 is provided inside the small gear 9, the spline drive shaft 6 slidably penetrates through the spline hole 901, a large gear 301 is provided outside the driving pulley 3, the small gear 9 meshes with the large gear 301, the long screw 7 is rotatably connected to the support frame seat 1, and a screw hole B801 is provided inside the movable switching block 8, and the long screw 7 is threadedly connected in the screw hole B801;

[0057] With the above technical solution, when it is necessary to move and adjust the strip seat 2, the long screw 7 is rotated, the long screw 7 drives the movable switching block 8 to move, the movable switching block 8 drives the small gear 9 to switch positions, so that the small gear 9 meshes 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 driving pulley 3 to rotate through the small gear 9, realizing the front and back movement adjustment operation of the strip seat 2, and the control is more convenient.

[0058] Working principle of this embodiment: First, replace the pneumatic fixture 13 according to different types of automobile body. When the pneumatic fixture 13 is installed on the top of the movable support 11, the convex block 1103 is located at the innermost end of the L-shaped connecting groove 1301, and the threaded blind hole 1104 is in communication with the outer connecting hole 1302. Connect the positioning bolt 14 to the outer connecting hole 1302 and the threaded blind hole 1104 to fix the pneumatic fixture 13. Next, rotate the long screw rod 7. The long screw rod 7 drives the movable switching block 8 to move. The movable switching block 8 drives the small gear 9 to switch positions, so that the small gear 9 meshes with the large gear 301 corresponding to the strip seat 2. Rotate the spline drive shaft 6. The spline drive shaft 6 drives the driving pulley 3 to rotate through the small gear 9 to realize the front and rear movement adjustment operation of the strip seat 2 and change the interval 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 guiding rib 101 to fix the strip seat 2. Finally, rotate the short screw rod 12 to drive the left and right movement adjustment of the movable support 11, change the positions of the two pneumatic fixtures 13 on the top of the strip seat 2, make the pneumatic fixtures 13 close to the edge of the automobile body, and clamp and fix the automobile body to meet the requirements of automobile body assembly and welding.

[0059] In this article, the following points need to be noted:

[0060] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0061] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0062] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to 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 each strip seat (2) is connected to the corresponding 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 device is installed inside the support frame seat (1). The movable switching block (8) is provided with a pinion (9) connected thereto, a 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); a pneumatic clamp (13) is installed on the top of the movable support (11), and a positioning bolt (14) is connected to the bottom of the pneumatic clamp (13). The top of the support frame seat (1) is provided with guide convex strips (101) on both sides, 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); the end of the strip seat (2) is provided with a screw hole A (202), and the limit bolt (10) is threadedly connected in the screw hole A (202), and the end of the limit bolt (10) is in contact with the guide convex strip (101); the driving pulley (3) is rotatably connected to the support frame seat (1), and the driven pulley (4) is rotatably connected to the support frame seat (1), and the driving pulley (3) is connected to the driven pulley (4) through a synchronous transmission belt (5). 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), and the pinion gear (9) meshes with the large gear (301) corresponding to the strip seat (2) that needs to be moved and adjusted; 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).

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).

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