Double-end roller welding device

By designing a double-head roller welding device including a base, guide groove, movable seat, spline shaft, adjustable nip mechanism, roller nip mechanism, screw, motor and welding gun fixing frame, the problems of poor synchronization, unstable welding quality and low efficiency at both ends of the double-head roller in traditional manual welding are solved, and efficient, accurate and synchronous welding effects are achieved.

CN119566603AInactive Publication Date: 2025-03-07NANTONG HEYUE ROLLER MAKING EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411810396.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

It is difficult to ensure synchronization between the two ends when traditional manual welding of double-head rollers, the welding quality is unstable and inefficient. The existing welding equipment has poor adaptability to the welding of double-head rollers, unstable clamping and inconvenient welding position adjustment.

Method used

A double-head roller welding device is designed, including base, guide groove, movable seat, spline shaft, adjustable clamping mechanism, roller nip mechanism, screw, motor, welding torch fixing frame and other components. Through the motor, the screw and spline shaft are driven, combined with the adjustable clamping mechanism and welding torch fixing frame, synchronous welding and flexible adjustment at both ends of the roller are achieved.

Benefits of technology

It realizes efficient, accurate and synchronous welding of double-head rollers, improves welding quality and efficiency, reduces welding defects, ensures product stability and consistency, and reduces labor and time costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119566603A_ABST
    Figure CN119566603A_ABST
Patent Text Reader

Abstract

The invention discloses a double-end roller welding device, which relates to the technical field of welding and comprises a base, a guide groove I, a movable seat I, a spline shaft I, an adjustable clamping mechanism II, a spline shaft II, a screw rod II, a movable seat II, a welding gun fixing frame and the like. A first screw and a second screw are driven by a first motor, the distance between roller clamping mechanisms can be easily adjusted according to the length of a roller by means of ingenious cooperation of a movable seat and a guide groove, rollers of different sizes can be accurately matched, a stable foundation is provided for subsequent welding, and the universality and practicability of equipment are greatly improved; the adjustable clamping mechanism is ingenious in design, the third motor drives related parts to be in linkage, the self-centering chuck efficiently and stably clamps the welding pieces, the symmetrical structure of the adjustable clamping mechanism ensures clamping consistency and reliability of the welding pieces at the two ends of the double-end roller, welding errors caused by uneven clamping are effectively reduced, and the welding quality and the product precision are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field:

[0001] The invention relates to the technical field of welding, and in particular to a double-head roller welding device. Background technology:

[0002] In industrial production, double-headed rollers are widely used. They are usually composed of a roller body and welded parts at both ends. In the manufacturing process, high requirements are placed on the welding quality and efficiency of double-headed rollers. Traditional welding methods often rely on manual operation, requiring workers to perform welding operations on both ends of the roller separately. This method has many disadvantages. First, manual welding is difficult to ensure the synchronization of welding at both ends, which can easily lead to uneven welding quality. For example, one end may be firmly welded while the other end may have welding defects, which seriously affects the overall performance and service life of the roller. Secondly, manual welding is inefficient. For double-headed rollers produced in batches, it consumes a lot of manpower and time costs, which is not conducive to enterprises improving production efficiency and market competitiveness. With the continuous improvement of the automation level of the manufacturing industry, the requirements for automation, precision and efficiency of welding equipment are becoming increasingly urgent. Although some existing welding equipment has achieved automation to a certain extent, it has poor adaptability to the welding of special structures such as double-headed rollers, and cannot well meet the needs of synchronous welding at both ends and flexible adjustment of welding parameters and positions. For example, some equipment is not stable enough when clamping rollers and welding parts, and is prone to loosening or displacement during welding, affecting welding accuracy; some equipment is not convenient enough to adjust the welding position, and requires complex operation procedures to complete, which reduces production efficiency. Therefore, in order to overcome the shortcomings of the above-mentioned traditional welding methods and some existing welding equipment, it is particularly necessary to develop a device that can achieve efficient, accurate and synchronous welding of double-headed rollers. The double-headed roller welding device of the present invention is produced based on such a background. Summary of the invention:

[0003] The purpose of the present invention is to provide a double-headed roller welding device in order to solve the above-mentioned problems, which solves the problems of difficulty in ensuring the synchronization of both ends, unstable welding quality and low efficiency in traditional manual welding of double-headed rollers, and at the same time overcomes the defects of some existing welding equipment such as poor adaptability to double-headed roller welding, unstable clamping, and inconvenient welding position adjustment.

[0004] In order to solve the above problems, the present invention provides a technical solution: a double-headed roller welding device, comprising a base, a guide groove 1, a movable seat 1, a spline shaft 1, an adjustable clamping mechanism 1, a roller clamping mechanism 1, a screw rod 1, a motor 1, a motor 2, a guide groove 2, a roller clamping mechanism 2, an adjustable clamping mechanism 2, a spline shaft 2, a screw rod 2, a movable seat 2 and a welding gun fixing frame; a transverse guide groove 1 is provided on the upper right side of the base, and a transverse guide groove 2 is provided on the upper left side of the base; the motor 1 and the motor 2 are both fixedly connected to the central interior of the base; the screw rod 1 is movably connected to the lower side of the guide groove, and the left center of the screw rod 1 is fixedly connected to the right output shaft of the motor 1; the screw rod 2 is movably connected to the lower side of the guide groove 2, and the right center of the screw rod 2 is fixedly connected to the left output shaft of the motor 1; the spline shaft 1 is movably connected to the upper side of the guide groove 1, and the left center of the spline shaft 1 is fixedly connected to the right output shaft of the motor 2; the spline The second shaft is movably connected to the upper side of the guide groove second, and the right side center of the spline shaft second is fixedly connected to the left output shaft of the motor second; the outer side of the movable seat one is laterally movably connected to the inside of the guide groove one, and the threaded hole arranged on the lower side of the movable seat is connected to the screw rod one; the upper left side of the movable seat one is provided with a roller clamping mechanism one, and the upper right side of the movable seat one is provided with an adjustable clamping mechanism one, and the lower side of the adjustable clamping mechanism one and the roller clamping mechanism one are both connected to the spline shaft one; the outer side of the movable seat two is laterally movably connected to the inside of the guide groove two, and the threaded hole arranged on the lower side of the movable seat two is connected to the screw rod two, the upper right side of the movable seat two is provided with an adjustable clamping mechanism two, and the lower sides of the adjustable clamping mechanism two and the roller clamping mechanism two are both connected to the spline shaft two; there are two welding gun fixing frames, and the bottoms of the two welding gun fixing frames are respectively fixedly connected to the tops of the movable seat one and the movable seat two.

[0005] Preferably, the adjustable clamping mechanism 2 is consistent with the adjustable clamping mechanism 1 in structure and is symmetrically arranged. The specific structure of the adjustable clamping mechanism 1 includes a spline shaft 3, a screw rod 3, a guide groove 3, a slide seat, a fixed plate, a motor 3, a driving pulley 1, a synchronous belt 1, a driven pulley 1, a transmission sleeve 1 and a chuck 1; the guide groove 3 is opened inside the upper right side of the movable seat 1, and a fixed plate is fixedly connected to the right opening of the guide groove 3; the screw rod 3 is movably connected to the lower side of the guide groove 3, and the spline hole arranged in the center of the screw rod 3 is connected to the spline shaft 3; the outer part of the lower side of the slide seat is movably connected to the guide groove 3 Internally, the threaded hole arranged on the lower side of the slide is connected with the screw three-phase; the motor three is fixedly connected to the right side outside of the base, and the left side output shaft of the motor three is fixedly connected to the right side center of the spline shaft three; the driving pulley one is movably connected to the lower side of the slide, and the spline hole arranged in the center of the driving pulley one is connected to the spline shaft one; the transmission sleeve one is externally movably connected to the upper side of the slide, and the left and right side ends of the transmission sleeve one are fixedly connected with a chuck one, and the central outside of the transmission sleeve one is fixedly connected with a driven pulley one, and the driven pulley one is connected to the driving pulley one through a synchronous belt one.

[0006] Preferably, the motor three is a servo motor or a stepper motor.

[0007] Preferably, the chuck 1 is a self-centering chuck.

[0008] Preferably, the structure of the roller clamping mechanism 2 is consistent with that of the roller clamping mechanism 1 and they are symmetrically arranged. The specific structure of the roller clamping mechanism 1 includes a driving pulley 2, a transmission chamber, a synchronous belt 2, a driven pulley 2, a transmission sleeve 2 and a chuck 2; the transmission chamber is arranged inside the upper left side of the movable seat 1; the driving pulley 2 is movably connected to the lower side of the transmission chamber, and the spline hole arranged in the center of the driving pulley 2 is connected to the spline shaft 1; the transmission sleeve 2 is movably connected to the upper side of the transmission chamber, and the left and right ends of the transmission sleeve 2 are fixedly connected with the chuck 2, and the central outside of the transmission sleeve 2 is fixedly connected with the driven pulley 2, and the driven pulley 2 is connected to the driving pulley 2 through the synchronous belt 2.

[0009] Preferably, the second chuck is a self-centering chuck.

[0010] Preferably, the specific structure of the welding gun fixing bracket includes a guide hole seat, a guide hole, a telescopic arm, a welding gun clamping hole seat, a welding gun clamping hole, a first locking screw and a second locking screw; a guide hole is provided inside the upper side of the guide hole seat, and a second locking screw is movably connected in a threaded hole arranged in the center of the upper side of the guide hole; the left side of the telescopic arm is fixedly connected to the inside of the guide hole by the second locking screw, and the end of the telescopic arm is fixedly connected to the welding gun clamping hole seat; a welding gun clamping hole is provided inside the welding gun clamping hole seat, and a locking screw is movably connected in a threaded hole arranged in the center of one side of the welding gun clamping hole.

[0011] Preferably, the locking screw 1 and the locking screw 2 are both hexagon socket screws.

[0012] Preferably, the motor 1 and the motor 2 are both servo motors or stepper motors.

[0013] The beneficial effects of the present invention are as follows: (1) The present invention has a compact and reasonable structure, is simple and practical, and effectively reduces the design and manufacturing costs. The installation process is simple and easy, and can be quickly put into use. The motor drives the screws one and two, and with the help of the exquisite cooperation between the movable seat and the guide groove, the roller clamping mechanism spacing can be easily adjusted according to the roller length, and rollers of different sizes can be accurately adapted, providing a solid foundation for subsequent welding, which greatly improves the versatility and practicality of the equipment.

[0014] (2) The adjustable clamping mechanism of the present invention is ingeniously designed. The motor drives the related components in linkage, so that the self-centering chuck can clamp the welded parts efficiently and stably. Its symmetrical structure ensures the consistency and reliability of the clamping of the welded parts at both ends of the double-headed roller, effectively reduces the welding errors caused by uneven clamping, and improves the welding quality and product precision.

[0015] (3) The welding gun fixing bracket in the present invention is unique and can flexibly adjust the position and posture of the welding gun by utilizing the combination of guide holes, telescopic arms and locking screws to meet the requirements of diversified welding processes. The operation is convenient and efficient, effectively saving adjustment time and labor costs.

[0016] (4) During welding in the present invention, the second motor drives the spline shaft to drive the roller and the weldment to rotate synchronously, ensuring the synchronization and uniformity of welding at both ends of the double-headed roller, significantly improving the welding efficiency and quality, reducing welding defects, ensuring the stability and consistency of the product, and effectively improving the overall production efficiency. Description of the drawings:

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 sectional view of .

[0019] Figure 3 It is a structural schematic diagram of the adjustable clamping mechanism.

[0020] Figure 4 It is a structural schematic diagram of the roller clamping mechanism.

[0021] Figure 5 It is a structural schematic diagram of the welding gun fixing frame.

[0022] 1-base; 2-guide groove 1; 3-movable seat 1; 4-spline shaft 1; 5-adjustable clamping mechanism 1; 6-roller clamping mechanism 1; 7-screw rod 1; 8-motor 1; 9-motor 2; 10-guide groove 2; 11-roller clamping mechanism 2; 12-adjustable clamping mechanism 2; 13-spline shaft 2; 14-screw rod 2; 15-movable seat 2; 16-welding gun fixing frame; 51-spline shaft 3; 52-screw rod 3; 53-guide groove 3; 54-slide seat; 55-fixed plate; 56-motor three; 57-driving pulley one; 58-synchronous belt one; 59-driven pulley one; 510-transmission sleeve one; 511-chuck one; 61-driving pulley two; 62-transmission cavity; 63-synchronous belt two; 64-driven pulley two; 65-transmission sleeve two; 66-chuck two; 161-guide hole seat; 162-guide hole; 163-telescopic arm; 164-welding gun clamp hole seat; 165-welding gun clamp hole; 166-locking screw one; 167-locking screw two. Specific implementation method:

[0023] like Figure 1 and Figure 2As shown, this specific embodiment adopts the following technical scheme: a double-headed roller welding device, including a base 1, a guide groove 2, a movable seat 3, a spline shaft 4, an adjustable clamping mechanism 5, a roller clamping mechanism 6, a screw 7, a motor 8, a motor 9, a guide groove 10, a roller clamping mechanism 11, an adjustable clamping mechanism 12, a spline shaft 13, a screw 14, a movable seat 15 and a welding gun fixing frame 16; the base 1 is provided with a transverse guide groove 2 on the upper right side, and the base 1 is provided with a transverse guide groove 2 on the upper left side. The guide groove 10; the motor 18 and the motor 29 are both fixedly connected to the central interior of the base 1; the screw 17 is movably connected to the lower side of the guide groove 2, and the left center of the screw 17 is fixedly connected to the right output shaft of the motor 8; the screw 2 14 is movably connected to the lower side of the guide groove 10, and the right center of the screw 2 14 is fixedly connected to the left output shaft of the motor 8; the spline shaft 4 is movably connected to the upper side of the guide groove 2, and the left center of the spline shaft 4 is fixedly connected to the right output shaft of the motor 2 9; the spline shaft 2 13 is movably connected to the upper side of the guide groove 2 10, and the right center of the spline shaft 2 13 is fixedly connected to the left output shaft of the motor 2 9; the outer side of the movable seat 13 is movably connected to the inner side of the guide groove 2 in a transverse manner, and the threaded hole arranged on the lower side of the movable seat 3 is connected to the screw 7, and the upper left side of the movable seat 3 is provided with a roller clamping mechanism 6, and the upper right side of the movable seat 3 is provided with an adjustable clamping mechanism 5, and the lower sides of the adjustable clamping mechanism 5 and the roller clamping mechanism 6 are both connected to the spline shaft 4; the outer side of the movable seat 2 15 The movable seat 15 is laterally movably connected inside the guide groove 10, the threaded hole arranged on the lower side of the movable seat 15 is connected to the screw 14, the movable seat 15 is provided with a roller clamping mechanism 11 on the upper right side, the movable seat 15 is provided with an adjustable clamping mechanism 12 on the upper left side, and the lower sides of the adjustable clamping mechanism 12 and the roller clamping mechanism 11 are both connected to the spline shaft 13; there are two welding gun fixing frames 16, and the bottoms of the two welding gun fixing frames 16 are respectively fixedly connected to the tops of the movable seat 13 and the movable seat 15.

[0024] like Figure 3As shown, the adjustable clamping mechanism 2 12 is consistent with the structure of the adjustable clamping mechanism 1 5 and is symmetrically arranged. The specific structure of the adjustable clamping mechanism 1 5 includes a spline shaft 3 51, a screw rod 3 52, a guide groove 3 53, a slide seat 54, a fixed plate 55, a motor 3 56, a driving pulley 1 57, a synchronous belt 1 58, a driven pulley 1 59, a transmission sleeve 1 510 and a chuck 1 511; the guide groove 3 53 is opened inside the upper right side of the movable seat 1 3, and the right opening of the guide groove 3 53 is fixedly connected with the fixed plate 55; the screw rod 3 52 is movably connected to the lower side of the guide groove 3 53, and the spline hole arranged in the center of the screw rod 3 52 is connected to the spline shaft 3 51; the lower side of the slide seat 54 is movably connected to the guide groove 3 53, the threaded hole arranged on the lower side of the slide 54 is connected to the screw three 52; the motor three 56 is fixedly connected to the outside of the right side of the base 1, and the left output shaft of the motor three 56 is fixedly connected to the center of the right side of the spline shaft three 51; the driving pulley 1 57 is movably connected to the lower side of the slide 54, and the spline hole arranged in the center of the driving pulley 1 57 is connected to the spline shaft 1 4; the transmission sleeve 1 510 is externally movably connected to the upper side of the slide 54, and the left and right ends of the transmission sleeve 1 510 are fixedly connected with a chuck 1 511, and the central outside of the transmission sleeve 1 510 is fixedly connected with a driven pulley 1 59, and the driven pulley 1 59 is connected to the driving pulley 1 57 through a synchronous belt 1 58.

[0025] Among them, the motor three 56 is a servo motor or a stepper motor, so it is convenient to control the motor three 56 through existing automation technology; the chuck one 511 is a self-centering chuck.

[0026] like Figure 4 As shown, the roller clamping mechanism 11 is consistent with the roller clamping mechanism 16 in structure and is symmetrically arranged. The specific structure of the roller clamping mechanism 16 includes a driving pulley 161, a transmission cavity 62, a synchronous belt 163, a driven pulley 164, a transmission sleeve 165 and a chuck 166; the transmission cavity 62 is arranged inside the upper left side of the movable seat 13; the driving pulley 161 is movably connected to the lower side of the transmission cavity 62, and the spline hole arranged in the center of the driving pulley 161 is connected to the spline shaft 14; the transmission sleeve 165 is movably connected to the upper side of the transmission cavity 62, and the left and right ends of the transmission sleeve 165 are fixedly connected with a chuck 166, and the central outer part of the transmission sleeve 165 is fixedly connected with a driven pulley 164, and the driven pulley 164 is connected to the driving pulley 161 through the synchronous belt 163.

[0027] Wherein, the chuck 2 66 is a self-centering chuck.

[0028] like Figure 5As shown, the specific structure of the welding gun fixing frame 16 includes a guide hole seat 161, a guide hole 162, a telescopic arm 163, a welding gun clamping hole seat 164, a welding gun clamping hole 165, a locking screw 166 and a locking screw 2 167; a guide hole 162 is provided inside the upper side of the guide hole seat 161, and a locking screw 2 167 is movably connected in a threaded hole set in the center of the upper side of the guide hole 162; the left side of the telescopic arm 163 is fixedly connected to the inside of the guide hole 162 by a locking screw 2 167, and the end of the telescopic arm 163 is fixedly connected to the welding gun clamping hole seat 164; a welding gun clamping hole 165 is provided inside the welding gun clamping hole seat 164, and a locking screw 166 is movably connected in a threaded hole set in the center of one side of the welding gun clamping hole 165.

[0029] Among them, the locking screw 1 166 and the locking screw 2 167 are both hexagon socket screws; the motor 1 8 and the motor 2 9 are both servo motors or stepper motors, so it is convenient to control the motor 1 8 and the motor 2 9 through existing automation technology.

[0030] The use state of the present invention is as follows: the present invention has a reasonable and simple structure, low production cost, and convenient installation. When in use, firstly, the motor 18 is started according to the length of the roller to be welded, and the motor 18 drives the screw 17 and the screw 2 14 to rotate. Since the threaded hole on the lower side of the movable seat 13 is connected to the screw 17, the threaded hole on the lower side of the movable seat 2 15 is connected to the screw 2 14, and the outer part of the movable seat 13 moves laterally in the guide groove 12, and the outer part of the movable seat 2 15 moves laterally in the guide groove 2 10, the distance between the roller clamping mechanism 16 and the roller clamping mechanism 2 11 is adjusted, so that it is convenient to clamp the two ends of the roller, and then the welding parts to be welded at the two ends of the roller are placed on the adjustable clamping mechanism 15 and the adjustable clamping mechanism 11 respectively. In the mechanism 2 12, taking the adjustable clamping mechanism 1 5 as an example, the motor 3 56 is started, and the motor 3 56 drives the spline shaft 3 51 to rotate, and the spline shaft 3 51 is connected to the central spline hole of the screw rod 3 52, so that the screw rod 3 52 rotates, and the threaded hole on the lower side of the slide 54 is connected to the screw rod 3 52 and the lower side of the slide 54 moves in the guide groove 3 53, thereby driving the slide 54 to move, and the central spline hole of the active pulley 1 57 is connected to the spline shaft 1 4, and the outer part of the transmission sleeve 1 510 moves on the upper side of the inside of the slide 54 and the left and right ends thereof are fixedly connected with the chuck 1 511 (the chuck 1 511 is a self-centering chuck), and the active pulley 1 57 is connected to the driven pulley 1 59 on the transmission sleeve 1 510 through the synchronous belt 1 58. , and then the chuck 1 511 moves and clamps the weldment. The adjustable clamping mechanism 2 12 has the same structure as the adjustable clamping mechanism 1 5 and is symmetrically arranged. The same operation can be performed to clamp the weldment at the other end. Then the welding gun is placed in the welding gun fixing frame 16. A guide hole 162 is provided inside the upper side of the guide hole seat 161 of the welding gun fixing frame 16. The left side of the telescopic arm 163 is fixed to the inside of the guide hole 162 by a locking screw 2 167 (hexagon socket screw). The position of the telescopic arm 163 in the guide hole 162 can be adjusted. The end of the telescopic arm 163 is fixedly connected to a welding gun clamping hole seat 164. The welding gun clamping hole seat 164 has a welding gun clamping hole 165. The welding gun can be fixed in the welding gun by a locking screw 166 (hexagon socket screw). The welding gun is clamped in the hole 165 and the welding position is adjusted. During welding, the motor 29 is started, and the motor 29 drives the spline shaft 14 and the spline shaft 213 to rotate. For the roller clamping mechanism 16, the central spline hole of the active pulley 261 is connected to the spline shaft 14, the transmission sleeve 265 is movably connected to the upper side of the transmission cavity 62 and the left and right ends thereof are fixedly connected with the chuck 266 (the chuck 266 is a self-centering chuck), the driven pulley 264 is connected to the active pulley 261 through the synchronous belt 263, thereby driving the roller to rotate. Similarly, the spline shaft 213 drives the roller part on the roller clamping mechanism 211 to rotate, thereby driving the roller and the welding parts on both sides to rotate synchronously, meeting the need for synchronous welding at both ends of the roller.

[0031] The control method in the present invention is to start manually or control through existing automation technology. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0032] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0033] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0034] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A double-head roller welding device, characterized in that: It comprises a base (1), a guide groove (2), a movable seat (3), a spline shaft (4), an adjustable clamping mechanism (5), a roller clamping mechanism (6), a screw rod (7), a motor (8), a motor (9), a guide groove (10), a roller clamping mechanism (11), an adjustable clamping mechanism (12), a spline shaft (13), a screw rod (14), a movable seat (15) and a welding gun fixing frame (16); A transverse guide groove 1 (2) is provided on the upper right side of the base (1), and a transverse guide groove 2 (10) is provided on the upper left side of the base (1); The motor 1 (8) and the motor 2 (9) are both fixedly connected to the central interior of the base (1); The screw rod 1 (7) is movably connected to the lower side of the guide groove 1 (2), and the left center of the screw rod 1 (7) is fixedly connected to the right output shaft of the motor 1 (8); The second screw rod (14) is movably connected to the lower side of the second guide groove (10), and the right center of the second screw rod (14) is fixedly connected to the left output shaft of the first motor (8); The spline shaft one (4) is movably connected to the upper side of the guide groove one (2), and the left center of the spline shaft one (4) is fixedly connected to the right output shaft of the motor two (9); The second spline shaft (13) is movably connected to the upper side of the second guide groove (10), and the right center of the second spline shaft (13) is fixedly connected to the left output shaft of the second motor (9); The movable seat (3) is externally connected to the guide groove (2) in a transversely movable manner, the threaded hole provided on the lower side of the movable seat (3) is connected to the screw (7), the movable seat (3) is provided with a roller clamping mechanism (6) on the upper left side, the movable seat (3) is provided with an adjustable clamping mechanism (5) on the upper right side, and the lower sides of the adjustable clamping mechanism (5) and the roller clamping mechanism (6) are both connected to the spline shaft (4); The outer portion of the movable seat 2 (15) is laterally movably connected to the inner portion of the guide groove 2 (10); the threaded hole arranged on the lower side of the movable seat 2 (15) is connected to the screw rod 2 (14); the upper right side of the movable seat 2 (15) is provided with a roller clamping mechanism 2 (11); the upper left side of the movable seat 2 (15) is provided with an adjustable clamping mechanism 2 (12); and the lower sides of the adjustable clamping mechanism 2 (12) and the roller clamping mechanism 2 (11) are both connected to the spline shaft 2 (13); There are two welding gun fixing frames (16), and the bottoms of the two welding gun fixing frames (16) are respectively fixedly connected to the tops of the movable seat 1 (3) and the movable seat 2 (15).

2. The double-head roller welding device according to claim 1, characterized in that: The adjustable clamping mechanism 2 (12) is consistent in structure with the adjustable clamping mechanism 1 (5) and is symmetrically arranged. The specific structure of the adjustable clamping mechanism 1 (5) includes a spline shaft 3 (51), a screw rod 3 (52), a guide groove 3 (53), a slide seat (54), a fixing plate (55), a motor 3 (56), a driving pulley 1 (57), a synchronous belt 1 (58), a driven pulley 1 (59), a transmission sleeve 1 (510) and a chuck 1 (511); The guide groove three (53) is arranged inside the upper right side of the movable seat one (3), and a fixing plate (55) is fixedly connected to the right opening of the guide groove three (53); The screw rod 3 (52) is movably connected to the lower side of the guide groove 3 (53), and the spline hole arranged in the center of the screw rod 3 (52) is connected to the spline shaft 3 (51); The lower side of the slide seat (54) is movably connected to the inside of the guide groove (53), and the threaded hole provided on the lower side of the slide seat (54) is connected to the screw rod (52); The motor three (56) is fixedly connected to the right side of the base (1), and the left side output shaft of the motor three (56) is fixedly connected to the right side center of the spline shaft three (51); The driving pulley 1 (57) is movably connected to the lower side of the inner part of the slide seat (54), and the spline hole arranged in the center of the driving pulley 1 (57) is connected to the spline shaft 1 (4); The transmission sleeve (510) is externally movably connected to the upper side of the slide seat (54), and the left and right ends of the transmission sleeve (510) are fixedly connected to a chuck (511). The central outer portion of the transmission sleeve (510) is fixedly connected to a driven pulley (59), and the driven pulley (59) is connected to the driving pulley (57) through a synchronous belt (58).

3. The double-head roller welding device according to claim 2 is characterized in that: The motor three (56) is a servo motor or a stepper motor.

4. The double-head roller welding device according to claim 2, characterized in that: The chuck one (511) is a self-centering chuck.

5. The double-head roller welding device according to claim 1, characterized in that: The roller clamping mechanism 2 (11) is consistent in structure with the roller clamping mechanism 1 (6) and is symmetrically arranged. The specific structure of the roller clamping mechanism 1 (6) includes a driving pulley 2 (61), a transmission cavity (62), a synchronous belt 2 (63), a driven pulley 2 (64), a transmission sleeve 2 (65) and a chuck 2 (66); The transmission chamber (62) is arranged inside the upper left side of the movable seat (3); The second driving pulley (61) is movably connected to the lower side of the transmission chamber (62), and the spline hole arranged in the center of the second driving pulley (61) is connected to the first spline shaft (4); The second transmission sleeve (65) is movably connected to the upper side of the transmission cavity (62), and the left and right ends of the second transmission sleeve (65) are fixedly connected to the second chuck (66). The central outer part of the second transmission sleeve (65) is fixedly connected to the second driven pulley (64), and the second driven pulley (64) is connected to the second driving pulley (61) through the second synchronous belt (63).

6. The double-head roller welding device according to claim 5, characterized in that: The second chuck (66) is a self-centering chuck.

7. The double-head roller welding device according to claim 1, characterized in that: The specific structure of the welding gun fixing frame (16) includes a guide hole seat (161), a guide hole (162), a telescopic arm (163), a welding gun clamping hole seat (164), a welding gun clamping hole (165), a locking screw 1 (166) and a locking screw 2 (167); A guide hole (162) is provided inside the upper side of the guide hole seat (161), and a second locking screw (167) is movably connected to a threaded hole provided in the center of the upper side of the guide hole (162); The left outer portion of the telescopic arm (163) is fixedly connected to the inside of the guide hole (162) via a second locking screw (167), and the end of the telescopic arm (163) is fixedly connected to a welding gun clamping seat (164); A welding gun clamping hole (165) is provided inside the welding gun clamping hole seat (164), and a locking screw (166) is movably connected in a threaded hole arranged in the center of one side of the welding gun clamping hole (165).

8. The double-head roller welding device according to claim 7, characterized in that: The locking screw 1 (166) and the locking screw 2 (167) are both hexagon socket screws.

9. The double-head roller welding device according to claim 1, characterized in that: The motor 1 (8) and the motor 2 (9) are both servo motors or stepper motors.