A quick locking device for vehicle beam welding

Abstract

The application relates to the technical field of vehicle beam welding, in particular to a quick locking device for vehicle beam welding, which comprises a support frame for overall support, a placing platform for vehicle beam placement, a positioning assembly for vehicle beam positioning and a pressing mechanism for vehicle beam pressing, characterized in that the support frame is additionally provided with a side holding mechanism for holding the vehicle beam. Through the innovative design of the holding mechanism + automatic driving + connecting rod adaptive structure, the application solves the pain points of traditional vehicle beam welding locking, such as inaccurate positioning, low efficiency and poor adaptability, can firmly fix the vehicle beam, avoids safety accidents caused by the falling of the vehicle beam during the welding process, reduces welding deformation, the response speed of the pneumatic driving is faster, the locking and releasing of the vehicle beam can be quickly completed, the auxiliary operation time is shortened, and the overall working efficiency of the vehicle beam welding is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle beam welding technology, and in particular to a quick locking device for vehicle beam welding. Background Technology

[0002] As a core load-bearing component of the automobile chassis, the welding quality of the vehicle beam directly affects the safety of the entire vehicle. Currently, the automotive manufacturing industry generally uses tooling fixtures to position the vehicle beam. However, traditional mechanical fixtures rely on manual operation to tighten bolts, which has problems such as low efficiency and uneven clamping force. In recent years, pneumatic fixtures have gradually replaced manual fixtures. With the popularization of environmental robots, higher requirements have been placed on the automation level, response speed, and positioning accuracy of the supporting fixtures.

[0003] In existing technologies, quick-locking equipment for vehicle beams typically positions the beams using positioning blocks and clamping mechanisms, and then welds them in place using a welding robot. However, during the welding process, due to the overall length of the vehicle beam, the quick-locking equipment lacks positioning on the sides of the beam. This results in insufficient clamping force on the beam due to the lack of lateral support, leading to lateral deformation during the welding process. Summary of the Invention

[0004] To address the problem that during the welding of vehicle beams, due to the overall length of the vehicle beams and the lack of positioning of the sides by the quick-locking device, the vehicle beams suffer from insufficient clamping force due to the lack of lateral support, resulting in lateral deformation during welding, this application provides a quick-locking device for vehicle beam welding.

[0005] This application provides a quick locking device for welding vehicle beams, which adopts the following technical solution: A quick-locking device for welding vehicle beams includes a support frame for overall support, a placement platform for placing vehicle beams, a positioning component for positioning vehicle beams, and a clamping mechanism for clamping vehicle beams. The device is characterized in that the support frame is further provided with a clamping mechanism for lateral clamping of the vehicle beams. The clamping mechanism includes a linear cylinder for driving the clamping mechanism to clamp and a push rod driven by the linear cylinder. A push block is provided at the end of the push rod away from the linear cylinder. Rotatable connecting rods are provided at both ends of the push block. A clamping rod for clamping the vehicle beam is connected at the end of the connecting rod away from the push block. A supporting static arm is connected to the inner side of the clamping rod. The clamping rod rotates around the connecting column of the supporting static arm to clamp. The supporting static arm is fixedly connected to the support frame on the side near the support frame. A first clamping block is provided on the surface of the clamping rod to assist the clamping rod in clamping the vehicle beam.

[0006] By adopting the above technical solution, the positioning component performs initial positioning, and then the clamping mechanism clamps the beam to initially fix it. Then, the clamping mechanism works, causing the clamping rod and the first clamping block on the clamping mechanism to clamp the beam laterally, thus clamping and fixing the beam from multiple directions. This can firmly fix the beam, preventing it from falling off during welding and causing safety accidents. It can also reduce welding deformation. The pneumatic drive has a faster response speed, which can quickly complete the locking and releasing of the beam, shorten the auxiliary operation time, and improve the overall work efficiency of beam welding.

[0007] Preferably, the output end of the linear cylinder is connected and fixed to the end of the push rod near the linear cylinder by a snap-fit ​​connection.

[0008] By adopting the above technical solution, the detachable connection allows for flexible replacement of linear cylinders with different strokes and thrusts, or replacement of push rods of suitable lengths, without the need to modify the main body of the mechanism. The snap-fit ​​connection has strong versatility, and the same push rod can be used for different models of linear cylinders.

[0009] Preferably, the end of the push rod away from the linear cylinder is fixedly connected to the center of the bottom surface of the push block.

[0010] By adopting the above technical solution, the uniform transmission of force and the synchronous clamping are ensured by "fixing the center of the push rod and the push block", which stabilizes one end of the push block and prevents the push block from tilting. At the same time, the precise guidance of movement and force distribution are achieved by "sliding connection between the push rod and the support static arm", which makes the push rod move stably and prevents the push rod from tilting.

[0011] Preferably, the connection between the first clamping block and the clamping rod is a detachable connection, with the side of the first clamping block near the clamping rod fitting against the clamping rod.

[0012] By adopting the above technical solution, since the first clamping block is a component that directly contacts the vehicle beam, it is prone to wear, deformation or surface damage under the influence of frequent clamping and high welding temperatures. The detachable connection allows for the individual replacement of damaged clamping blocks without scrapping the entire clamping rod. The symmetrically distributed first clamping blocks can apply equal and opposite clamping forces from both sides of the vehicle beam, forming a "centering clamping" effect, which prevents the vehicle beam from tilting or shifting due to uneven force during the welding process.

[0013] Preferably, the support frame includes a first bracket, a second bracket, and a base plate. The bottoms of both the first bracket and the second bracket are fixed to the base plate. The pressing mechanism and the placement platform are both installed on the first bracket, and the support arm is fixedly mounted on the second bracket.

[0014] By adopting the above technical solution, since the positioning, pressing, and clamping mechanisms are all moving parts, if they are integrated into the same bracket, the movement trajectories of each part are prone to cross and conflict. The separate bracket design allows each mechanism to be distributed along the length or width of the vehicle beam, reserving sufficient movement space and welding operation space, reducing movement interference, and making the equipment work more stably. At the same time, if a certain mechanism fails, only the support where it is located needs to be disassembled for repair, without disassembling the entire support. Other modules can continue to be installed, greatly shortening the equipment downtime.

[0015] Preferably, the positioning component includes a pair of support blocks for placing the vehicle beam and a positioning pin for initial positioning of the vehicle beam. The bottom of the support blocks is connected to the placement platform, and the pair of support blocks are arranged opposite to each other on the placement platform. The positioning pin is disposed between the pair of support blocks, and the bottom of the positioning pin is fixedly connected to the placement platform.

[0016] By adopting the above technical solution, the support blocks in the positioning assembly can provide stable support for the vehicle beam, and the positioning pins are located between the support blocks, which can accurately position the vehicle beam and ensure that the installation position of the vehicle beam meets the welding requirements.

[0017] Preferably, the clamping mechanism includes a tilting cylinder for driving the clamping mechanism and a clamping arm for clamping the vehicle beam. The tilting cylinder drives the clamping arm to tilt and clamp. A second clamping block is provided at the end of the clamping arm away from the tilting cylinder. The second clamping block cooperates with the support block to clamp the vehicle beam.

[0018] By adopting the above technical solution, the clamping mechanism, through the comprehensive design of "automatic cylinder drive + precise flipping execution + clamping block adaptation and fitting + collaborative constraint with support block", not only solves the problems of "low efficiency, uneven force and poor adaptability" of traditional clamping methods, but also forms an integrated closed loop of "positioning-clamping" with the positioning component, providing a "stable, precise, efficient and flexible" clamping stability effect for vehicle beam welding.

[0019] Preferably, the connection between the second clamping block and the pressing arm is a detachable connection, and the second clamping block extends relative to the side of the pressing arm and protrudes away from the tilting cylinder.

[0020] By adopting the above technical solution, the second clamping block is a component that directly contacts the vehicle beam. Long-term use may lead to damage due to wear and collision. The detachable design makes it more convenient to replace the second clamping block without complicated disassembly procedures, reducing equipment downtime and maintenance costs. The symmetrical arrangement of the second clamping blocks allows them to apply clamping force from above the vehicle beam in conjunction with the support block, ensuring that the vehicle beam is evenly stressed in the clamping direction and avoiding tilting, displacement, or local deformation of the vehicle beam caused by unilateral stress.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. This device, through its innovative design of "clamping mechanism + automated drive + linkage adaptive structure", solves the pain points of "inaccurate positioning, low efficiency and poor adaptability" in traditional vehicle beam welding and locking. It can firmly fix the vehicle beam, avoid the safety accident caused by the vehicle beam falling off during the welding process, and reduce welding deformation. The pneumatic drive has a faster response speed, which can quickly complete the locking and releasing of the vehicle beam, shorten the auxiliary operation time, and improve the overall work efficiency of vehicle beam welding. 2. The support frame, through its design of "strong load-bearing base plate + functional sub-supports + precise adaptation of static support arms + modular assembly", not only provides a stable and non-interfering installation foundation for the three core mechanisms of positioning, clamping, and clamping, but also takes into account "welding quality stability", "production efficiency", "multi-specification compatibility" and "maintenance convenience" through flexible layout and adaptability. It is the key support for the entire vehicle beam welding quick locking device to achieve "fast, accurate and stable" locking. 3. The detachable design of the first and second clamping blocks allows for replacement of the first and second clamping blocks, avoiding any impact on the fixed positioning of the vehicle beam. Attached Figure Description

[0022] Figure 1 This is a front-view perspective view of the quick-locking device for welding vehicle beams; Figure 2 This is a frontal perspective view of the quick-locking device for welding vehicle beams; Figure 3 This is a left-side sectional perspective view of the quick-locking device for welding vehicle beams; Figure 4 This is a three-dimensional structural diagram of the clamping mechanism; Figure 5 It is a three-dimensional structural diagram of the clamping mechanism.

[0023] Reference numerals: 100, support frame; 110, first bracket; 120, second bracket; 130, base plate; 200, placement platform; 300, positioning assembly; 310, support block; 320, positioning pin; 400, clamping mechanism; 410, tilting cylinder; 420, clamping boom; 430, second clamping block; 500, gripping mechanism; 510, linear cylinder; 520, push rod; 530, push block; 540, connecting rod; 550, clamping rod; 560, supporting stationary arm; 570, first clamping block. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail.

[0025] This application discloses a quick locking device for welding vehicle beams.

[0026] Reference Figure 1 and Figure 2 A quick-locking device for welding vehicle beams includes a support frame 100, a placement platform 200, a positioning component 300, a pressing mechanism 400, and a clamping mechanism 500. The support frame 100 supports the entire device and is fixed to the ground or workbench. The placement platform 200 is fixed to the support frame 100, allowing the vehicle beam to be placed on it. The positioning component 300, pressing mechanism 400, and clamping mechanism 500 are all bolted to the support frame 100, allowing the support frame 100 to lock onto the positioning component 300, pressing mechanism 400, and clamping mechanism 500. The 500 provides stable support, and the positioning component 300 is equipped with a vehicle beam, allowing the positioning component 300 to initially position the vehicle beam. Then, the clamping mechanism 400 clamps the vehicle beam. The clamping mechanism 500 includes a linear cylinder 510, which is detachably connected to the support frame 100 on the side near the support frame 100. The output end of the linear cylinder 510 is connected to a push rod 520. The linear cylinder 510 drives the push rod 520 to perform linear up-and-down movement. The connection between the output end of the linear cylinder 510 and the push rod 520 is a snap-fit ​​connection. The output end of the linear cylinder 510 is snapped onto the push rod 520. The linear cylinder 510 and push rod 520 are connected at one end near the linear cylinder 510, allowing for disassembly and replacement. A push block 530 is connected to the end of push rod 520 away from the linear cylinder 510, causing push rod 520 to move push block 530 up and down. Connecting rods 540 are connected to both ends of push block 530, causing push block 530 to move connecting rods 540 outwards. A clamping rod 550 is connected to the end of connecting rod 540 away from push block 530. A supporting static arm 560 is rotatably connected to the inner side of clamping rod 550. The supporting static arm 560 is fixedly connected to the support frame 100, allowing connecting rod 540 to pass through... The push of the push block 530 causes the upper part of the clamping rod 550 to move inward around the connection point with the support static arm 560. The end of the clamping rod 550 connected to the connecting rod 540 moves outward, so that the clamping rod 550 clamps the vehicle beam, stabilizing the side of the vehicle beam. The clamping rod 550 is connected to an inverted L-shaped first clamping block 570. The connection between the first clamping block 570 and the clamping rod 550 is detachable, and the first clamping block 570 fits against the clamping rod 550. The first clamping block 570 is driven by the clamping rod 550 to provide auxiliary clamping for the vehicle beam, making the vehicle beam more stable.

[0027] Through the above scheme, by placing the vehicle beam on the positioning component 300 on the support frame 100, the positioning component 300 initially positions the vehicle beam. Then, the clamping mechanism 400 presses down on the upper part of the vehicle beam, so that the clamping mechanism 400 and the positioning component 300 cooperate to fix the vehicle beam vertically. Then, the clamping mechanism 500 works, causing the linear cylinder 510 to drive the push rod 520 to move. The push rod 520 drives the push block 530 to move. The push block 530 drives one end of the clamping rod 550 through the connecting rod 540, so that the clamping rod 550 clamps the vehicle beam laterally and limits the front and rear movement of the vehicle beam, so that the vehicle beam is better fixed on the device. This can firmly fix the vehicle beam, avoid the vehicle beam falling off during the welding process and causing safety accidents, and also reduce welding deformation. At the same time, the pneumatic drive of the linear cylinder 510 has a faster response speed, which can quickly complete the locking and releasing of the vehicle beam, shorten the auxiliary operation time, and improve the overall work efficiency of vehicle beam welding.

[0028] refer to Figure 2 and Figure 3 The support frame 100 includes a first bracket 110, a second bracket 120, and a base plate 130. The bottoms of the first bracket 110 and the second bracket 120 are bolted to the base plate 130. The first bracket 110 supports the positioning component 300 and the clamping mechanism 400. The platform 200 is installed on the first bracket 110 and the second bracket 120 to support it. The second bracket 120 supports the clamping mechanism 500. The first bracket 110 is installed slightly behind the base plate 130, and the second bracket 120 is installed slightly in front of the base plate 130, so that the beams on the positioning component 300, the clamping mechanism 400, and the clamping mechanism 500 are on the same line. The support static arm 560 is fixedly connected to the second bracket 120, and its clamping mechanism 500 is installed on the support static arm 560 and the second bracket 120, so that the support static arm 560 and the second bracket 120 provide stable support for the clamping mechanism 500.

[0029] Through the above scheme, the support frame 100, with its design of "130 strong load-bearing base plate + functional sub-supports + 560 precise adaptation of static support arm + modular assembly", not only provides a stable and non-interfering installation foundation for the three core mechanisms of positioning, pressing and clamping, but also takes into account "welding quality stability", "production efficiency", "multi-specification compatibility" and "maintenance convenience" through flexible layout and adaptability. It is the key support for the entire vehicle beam welding fast locking device to achieve "fast, accurate and stable" locking.

[0030] refer to Figure 2 and Figure 3The positioning component 300 includes a support block 310 and a positioning pin 320. The support block 310 is used to support the bottom of the vehicle beam, so that the vehicle beam is placed on the support block 310. The support block 310 is fixedly connected to the top of the placement platform 200 on the support frame 100 by bolts. The bottom of the positioning pin 320 is also fixedly connected to the top of the placement platform 200 on the support frame 100. The top of the positioning pin 320 is higher than the top of the support block 310. The positioning pin 320 is used to initially position the vehicle beam, so that the positioning pin 320 is engaged in the vehicle beam to limit the movement of the vehicle beam.

[0031] By placing the vehicle beam on the support block 310 and inserting the positioning pin 320 into the vehicle beam, the vehicle beam is initially positioned. This allows the support block 310 in the positioning assembly 300 to provide stable support for the vehicle beam. The positioning pin 320 is located between the support blocks 310, which can accurately position the vehicle beam and ensure that the installation position of the vehicle beam meets the welding requirements, making it easy for the clamping mechanism 400 to clamp it.

[0032] refer to Figure 4 The clamping mechanism 400 includes a tilting cylinder 410, a clamping arm 420, and a second clamping block 430. The tilting cylinder 410 is detachably connected to the rear side of the first bracket 110 by bolts. The output end of the tilting cylinder 410 is connected to the clamping arm 420, so that the tilting cylinder 410 drives the clamping arm 420 to perform an arc-shaped tilting motion, which can be adjusted according to the size change of the vehicle beam. The clamping arm 420 and the second clamping block 430 are fixedly connected by bolts, so that the second clamping block 430 can be disassembled. The second clamping block 430 extends relative to the side of the clamping arm 420 and protrudes away from the tilting cylinder 410. At the same time, the clamping arm 420 drives the second clamping block 430 to press the vehicle beam downward through the tilting cylinder 410.

[0033] Through the above scheme, the vehicle beam is pressed down by the tilting cylinder 410 driving the clamping arm 420, so that the second clamping block 430 on the clamping arm 420 cooperates with the support block 310 to press the vehicle beam down and limit the upper and lower positions of the vehicle beam, so that the vehicle beam is fixed on the support frame 100, which facilitates the working clamping mechanism 500 to clamp the vehicle beam and prevent the vehicle beam from shifting, thereby reducing the impact on the welding of the vehicle beam.

[0034] refer to Figure 5The top of the push rod 520 is fixedly connected to the center of the bottom of the push block 530, so that the push rod 520 can push the push block 530 vertically upward or downward. The push rod 520 is also slidably connected to the support static arm 560. The "push rod 520-push block 530 center fixed" ensures uniform force transmission and synchronous clamping, stabilizes one end of the push block 530 and prevents the push block 530 from tilting. At the same time, the "push rod 520-support static arm 560 slidably connected" achieves precise guidance of movement and force distribution, making the push rod 520 move stably and preventing the push rod 520 from tilting.

[0035] The implementation principle of this application embodiment is as follows: During implementation, the vehicle beam is placed on the support block 310 on the support frame 100, and the positioning pin 320 is engaged with the vehicle beam to initially position it. Then, the tilting cylinder 410 on the pressing mechanism 400 operates, driving the pressing arm 420 to tilt and move downward, causing the pressing arm 420 to engage the first clamping block 570 with the support block 310 to press the vehicle beam. Then, the linear cylinder on the clamping mechanism 500... When 510 is in operation, the linear cylinder 510 drives the push rod 520 to move upward, the push rod 520 drives the push block 530 to move upward, the push rod 520 drives the connecting rod 540 to move, and the connecting rod 540 drives the clamping rod 550 to move, so that the clamping rod 550 clamps the vehicle beam. At the same time, the clamping rod 550 drives the first clamping block 570 to assist in clamping the vehicle beam, so that the lateral movement of the vehicle beam is limited, making the vehicle beam more stable in position. After stabilization, the vehicle beam is welded, reducing the impact on the vehicle beam.

[0036] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick locking device for vehicle beam welding, comprising a support frame (100) for overall support, a placement platform (200) for vehicle beam placement, a positioning assembly (300) for vehicle beam positioning, and a pressing mechanism (400) for vehicle beam pressing, characterized in that, The support frame (100) is also provided with a clamping mechanism (500) for lateral clamping of the beam. The clamping mechanism (500) includes a linear cylinder (510) for driving the clamping mechanism (500) to clamp and a push rod (520) driven by the linear cylinder (510). A push block (530) is provided at the end of the push rod (520) away from the linear cylinder (510). Rotatable connecting rods (540) are respectively provided at both ends of the push block (530). The end of the connecting rod (540) away from the push block (530) is connected to a clamping device for the vehicle beam. A tight clamping rod (550) is provided, and a support static arm (560) is connected to the inner side of the clamping rod (550). The clamping rod (550) rotates and clamps around the connecting column of the support static arm (560). The support static arm (560) is fixedly connected to the support frame (100) on the side close to the support frame (100). A first clamping block (570) is provided on the surface of the clamping rod (550) to assist the clamping rod (550) in clamping the vehicle beam.

2. The quick-locking device for welding vehicle beams according to claim 1, characterized in that, The output end of the linear cylinder (510) is connected and fixed to the end of the push rod (520) near the linear cylinder (510) by a snap-fit ​​connection.

3. The quick-locking device for welding vehicle beams according to claim 1, characterized in that, The end of the push rod (520) away from the linear cylinder (510) is fixedly connected to the center of the bottom surface of the push block (530).

4. The quick-locking device for welding vehicle beams according to claim 1, characterized in that, The connection between the first clamping block (570) and the clamping rod (550) is detachable, and the side of the first clamping block (570) close to the clamping rod (550) is in contact with the clamping rod (550).

5. The quick-locking device for welding vehicle beams according to claim 1, characterized in that, The support frame (100) includes a first bracket (110), a second bracket (120) and a base plate (130). The bottoms of the first bracket (110) and the second bracket (120) are both fixed on the base plate (130). The pressing mechanism (400) and the placement platform (200) are both installed on the first bracket (110). The support static arm (560) is fixedly installed on the second bracket (120).

6. The quick-locking device for welding vehicle beams according to claim 1, characterized in that, The positioning component (300) includes a pair of support blocks (310) for placing the vehicle beam and a positioning pin (320) for initial positioning of the vehicle beam. The bottom of the support blocks (310) is connected to the placement platform (200), and the pair of support blocks (310) are arranged opposite to each other on the placement platform (200). The positioning pin (320) is arranged between the pair of support blocks (310), and the bottom of the positioning pin (320) is fixedly connected to the placement platform (200).

7. The quick-locking device for welding vehicle beams according to claim 6, characterized in that, The clamping mechanism (400) includes a tilting cylinder (410) for driving the clamping mechanism (400) and a clamping arm (420) for clamping the vehicle beam. The tilting cylinder (410) drives the clamping arm (420) to tilt and clamp. A second clamping block (430) is provided at one end of the clamping arm (420) away from the tilting cylinder (410). The second clamping block (430) cooperates with the support block (310) to clamp the vehicle beam.

8. The quick-locking device for welding vehicle beams according to claim 7, characterized in that, The second clamping block (430) is detachably connected to the pressing arm (420). The second clamping block (430) extends relative to the side of the pressing arm (420) and protrudes away from the tilting cylinder (410).

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