A continuous welding locking jig structure

Abstract

The present application relates to welding jig technical field, and disclose a kind of continuous welding locking jig structure, including drive assembly, transmission assembly and multiple clamping assembly sequentially arranged along first direction;The drive assembly is provided with the drive end that moves back and forth along second direction, and the power input end of transmission assembly is arranged at the drive end of drive assembly;The clamping assembly includes at least three clamping units, three The clamping unit is collectively surrounded to form the clamping station for the installation of workpiece to be welded, and all have a clamping surface towards clamping station, and the clamping unit of multiple clamping assemblies is connected with the power output end of transmission assembly, and each The clamping unit is provided with first position and second position.The continuous welding locking jig structure, when multiple stations are parallel sequentially welded, improve the use of space, that is, improve the compactness of layout, so as to reduce the travel distance of welding equipment welding end to improve welding efficiency, while reducing the manufacturing cost of equipment.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, and specifically to a continuous welding locking fixture structure. Background Technology

[0002] In the field of automated welding production, especially in batch production scenarios requiring continuous welding of electronic components and mobile phone parts, welding fixtures are key process equipment for workpiece positioning and clamping. Their structural design directly affects the spatial layout of the production line, the cycle time, and the consistency of welding quality. Currently, most welding equipment has a single welding station. After the workpiece is placed in and fixed, welding is performed. After welding, the fixing is released and the workpiece is removed to replace the next workpiece. In this way, frequent manual loading and unloading operations not only increase labor intensity but also easily affect the consistency of welding quality due to differences in operation. To address this, the industry has developed various multi-station welding fixture structures to improve output efficiency and welding quality per unit time.

[0003] Existing multi-station continuous welding fixtures typically employ a method where each clamping unit is equipped with an independent cylinder as a power source to clamp the workpiece. Specifically, each clamping station has one cylinder on each side along a first direction (i.e., the conveying direction), which directly drives the pressure block to clamp the workpiece. Multiple clamping stations are arranged sequentially along the first direction to form a continuous welding production line. However, since each clamping unit requires an independent cylinder, the length of a single clamping station along the first direction is limited by the size of at least two cylinders. This results in a large distance between adjacent clamping stations, increasing the total length of the entire production line. This not only occupies a large processing space but also lengthens the travel distance of the welding end of the welding equipment between stations, increasing the single conveying time and limiting the production line cycle time. Furthermore, the number of components such as cylinders, pneumatic valves, pipelines, and sensors is equal to the number of clamping units, significantly increasing equipment manufacturing costs and subsequent maintenance complexity. Therefore, current multi-station continuous welding fixtures, while pursuing multi-station parallel welding efficiency, cannot meet the requirements of compact layout, welding efficiency, and reduced equipment costs. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous welding locking fixture structure that improves space utilization, i.e., increases the compactness of the layout, thereby reducing the travel distance of the welding end of the welding equipment to improve welding efficiency, while reducing the manufacturing cost of the equipment, making it suitable for widespread application.

[0005] To achieve the above objectives, the present invention provides the following technical solution: Design a continuous welding locking fixture structure, including a drive assembly, a transmission assembly, and a plurality of clamping assemblies arranged sequentially along a first direction; The drive assembly is provided with a drive end that reciprocates along the second direction, and the power input end of the transmission assembly is provided at the drive end of the drive assembly. The clamping assembly includes at least three clamping units, which together form a clamping station for mounting the workpiece to be welded, and each has a clamping surface facing the clamping station. Each clamping unit of the multiple clamping assemblies is connected to the power output end of the transmission assembly. Each clamping unit is provided with a first position and a second position. The power output end of the transmission assembly is used to control each clamping unit to switch from the first position to the second position. When the clamping unit is in the first position, the clamping surface of the clamping unit is spaced apart from the corresponding workpiece to be welded. When the clamping unit is in the second position, the clamping surface of the clamping unit is in contact with the corresponding workpiece to be welded.

[0006] Optionally, the clamping assembly further includes a mounting plate, the clamping station is formed on the surface of the mounting plate, and the surface of the mounting plate is provided with guide grooves corresponding to each clamping unit, and each clamping unit is slidably connected in the corresponding guide groove.

[0007] Optionally, the transmission assembly includes a push block and multiple connecting rods. The push block is fixedly connected to the drive end of the drive assembly by bolts. One end of each of the multiple connecting rods is disposed on the surface of the push block, and the other end is at least partially located inside the mounting plate and is slidably connected to the mounting plate along the second direction. At least a portion of the connecting rods are projected along the second direction between two adjacent clamping assemblies, and are used to move along the second direction to control the corresponding two clamping units in the two adjacent clamping assemblies to switch from the first position to the second position. Another portion of the connecting rods correspond one-to-one with the remaining clamping units, and are used to move along the second direction to control the remaining clamping units to switch from the first position to the second position.

[0008] Optionally, the end of the connecting rod facing the clamping unit is provided with a slope, which is an inclined surface that gradually descends along the direction of the connecting rod away from the drive assembly. The clamping unit is provided with a slider that is slidably connected to the slope. When the clamping unit is in the second position, the slider abuts against the slope.

[0009] Optionally, the clamping unit further includes a reset member and a clamping plate. The clamping surface is disposed on the clamping plate, the slider is disposed at one end of the clamping plate, and the reset member is at least partially disposed on the clamping surface of the clamping plate and located in the guide groove. The reset member is used to switch the clamping unit from the second position to the first position.

[0010] Optionally, the reset component includes an auxiliary shaft and a reset spring. One end of the auxiliary shaft is fixedly connected to the clamping surface of the clamping plate and is located in the guide groove. The guide groove has a receiving slot hole along the direction of extension of the auxiliary shaft. The other end of the auxiliary shaft is slidably connected in the receiving slot hole. The reset spring is sleeved on the periphery of the auxiliary shaft, with one end abutting against the clamping plate and the other end abutting against the groove wall of the guide groove.

[0011] Optionally, the clamping assembly is provided with three clamping units, and the projection of one of the clamping units and the other two clamping units along the second direction are perpendicular to each other. The surface of the mounting plate is provided with support blocks, and the number of support blocks corresponds to the number of clamping assemblies and is located at the corresponding clamping station.

[0012] Optionally, the clamping assembly is provided with four clamping units, which are arranged in a rectangular array on the surface of the mounting plate.

[0013] Optionally, it also includes a support assembly, wherein the fixed end of the drive assembly is fixedly connected to the support assembly by bolts, and the mounting plate is fixedly connected to the support assembly by bolts.

[0014] Optionally, the support assembly includes a support plate and a guide shaft. The fixed end of the drive assembly is fixedly connected to the surface of the support plate by bolts. One end of the guide shaft is fixedly connected to the surface of the support plate opposite to the drive assembly. The surface of the push block is slidably connected to the outer surface of the guide shaft through an opening.

[0015] Optionally, the drive assembly includes a drive cylinder, the fixed end of which is fixedly connected to the surface of the support plate by bolts, the surface of the support plate is provided with a clearance opening, the output end of the drive cylinder is fixedly connected to a connecting rod, and one end of the connecting rod extends out of the clearance opening along the second direction and is fixedly connected to the push block by bolts.

[0016] This invention provides a continuous welding locking fixture structure, which has the following beneficial effects: This continuous welding locking fixture structure uses multiple clamping components arranged sequentially along a first direction. Each clamping component has at least three clamping units arranged from different directions to form a clamping station, which can hold multiple workpieces to be welded. Furthermore, the reciprocating motion of the drive end of the drive component along a second direction is synchronously transmitted to each clamping unit of all clamping components via a transmission component. The clamping units of the same clamping component clamp the workpieces to be welded in multiple directions, and the synchronous movement of each clamping unit avoids the timing differences caused by independent control of multiple power sources. More specifically, by using the independent drive component as a drive source to replace the multiple power sources (i.e., cylinders) with the same number of clamping units, the time required for two adjacent clamping operations is significantly shortened. The spacing along the first direction (i.e., the thickness of the clamping unit replaces the length of the cylinder) reduces the space occupied and makes the layout more compact. At this time, the distance traveled by the welding end of the welding equipment along the first direction is reduced, which improves the production line cycle time and can effectively improve the welding efficiency and welding quantity. At the same time, it significantly reduces the number of power sources (cylinder components), reduces equipment manufacturing costs and maintenance complexity. By moving each clamping unit synchronously, the timing difference caused by independent control of multiple power sources is avoided, and the positional stability of the workpiece to be welded during the welding process can be guaranteed. It also reduces control steps, thereby realizing relatively low-cost multi-station sequential welding operations in a limited space. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the continuous welding locking fixture structure in this invention; Figure 2 This is a schematic diagram of the installation structure of the continuous welding locking fixture structure in this invention; Figure 3 This is a schematic diagram of the installation structure of the transmission component in this invention; Figure 4 This is a schematic diagram of the installation structure of the reset component in this invention; Figure 5 This is a three-dimensional structural diagram of the connecting rod in this invention; Figure 6 This is a front view of the clamping unit located in the second position in this invention. Figure 7 This is a front view of the clamping unit in the first position in this invention. Figure 8 This is a frontal cross-sectional view of the mounting plate in this invention.

[0018] In the diagram: 10, drive assembly; 20, transmission assembly; 21, push block; 22, connecting rod; 25, slope; 30, clamping assembly; 31, clamping unit; 311, slider; 312, reset component; 3121, auxiliary shaft; 3122, reset spring; 313, clamping plate; 32, mounting plate; 321, guide groove; 322, support block; 40, support assembly; 41, support plate; 42, guide shaft; 50, workpiece to be welded. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 8 The present invention provides a technical solution: a welding locking fixture structure, specifically applied to the continuous welding of multiple welding stations by moving a welding torch. Through the synchronous clamping setting, multiple workpieces to be welded can be installed and disassembled at the same time, which can reduce the locking time, reduce the distance between multiple welding stations, reduce the stroke of the welding torch, and improve the welding efficiency.

[0021] Example 1: Please see Figures 1 to 8 The present invention provides a technical solution: a continuous welding locking fixture structure, including a driving component 10, a transmission component 20 and a plurality of clamping components 30 arranged sequentially along a first direction; The drive assembly 10 is provided with a drive end that reciprocates along the second direction, and the power input end of the transmission assembly 20 is provided at the drive end of the drive assembly 10. The clamping assembly 30 includes at least three clamping units 31. The three clamping units 31 are arranged together to form a clamping station for mounting the workpiece 50 to be welded, and each has a clamping surface facing the clamping station. Each clamping unit 31 of the multiple clamping assemblies 30 is connected to the power output end of the transmission assembly 20. Each clamping unit 31 is provided with a first position and a second position. The power output end of the transmission assembly 20 is used to control each clamping unit 31 to switch from the first position to the second position. When the clamping unit 31 is in the first position, the clamping surface of the clamping unit 31 is spaced apart from the corresponding workpiece 50 to be welded; when the clamping unit 31 is in the second position, the clamping surface of the clamping unit 31 is in contact with the corresponding workpiece 50 to be welded. A continuous welding production line can be formed by arranging multiple clamping components 30 sequentially along a first direction. Each clamping component 30 includes at least three clamping units 31, which can be arranged from different directions to form a clamping station. This allows the workpiece 50 to be welded at the clamping station to be clamped by multiple points of combined force, effectively avoiding vibration displacement caused by thermal stress during the welding process. The drive component 10 serves as the sole power source, and its reciprocating motion along the second direction is synchronously transmitted to each clamping unit 31 of all clamping components 30 via the transmission component 20, enabling each clamping unit 31 to move synchronously under a single power input. The clamping unit 31 is located between the first position and the second position when the clamping unit 31 is locked, avoiding the timing difference caused by independent control of multiple power sources. Each clamping unit 31 is provided with a first position and a second position. When the drive end moves forward along the second direction, the transmission component 20 pushes each clamping unit 31 to switch from the first position to the second position synchronously. The clamping surface is in contact with the workpiece to achieve clamping. When the drive end is reset in the reverse direction, each clamping unit 31 returns from the second position to the first position synchronously. That is, it is disengaged from the second position and located between the first position and the second position. The clamping surface is separated from the workpiece 50 to be welded, which facilitates the loading and unloading of the workpiece. Furthermore, the clamping unit 31 differs from the cylinder. The cylinder has a fixed length, an extended length, and a thickness of the clamping component itself at the extended end. Relatively speaking, it saves more space, requiring only the stroke length of the clamping unit 31. This maximizes space utilization. Multiple clamping components 30 can simultaneously clamp multiple workpieces 50 to be welded, reducing loading and unloading steps and eliminating the need for multiple workpieces 50 to be welded in one opening and closing operation. At the same time, it allows the welding end of the welding equipment to move and weld sequentially, improving welding efficiency. By maximizing space utilization, the distance the welding end of the welding equipment needs to travel can be reduced. Specifically, multiple clamping components 30 are arranged sequentially along the first direction. Each clamping component 30 has at least three clamping units 31 arranged from different directions to form a clamping station, which can hold multiple workpieces 50 to be welded. Furthermore, the reciprocating motion of the drive end of the drive component 10 along the second direction is synchronously transmitted to each clamping unit 31 of all clamping components 30 via the transmission component 20. The clamping units 31 of the same clamping component 30 clamp the workpieces in multiple directions, and the clamping units 31 move synchronously, avoiding the timing differences caused by independent control of multiple power sources. More specifically, the independent drive source of the drive component 10 replaces the multiple clamping units 31 of the same number. The power source significantly shortens the distance between two adjacent clamping stations along the first direction, reducing space occupation and making the layout more compact. At this time, the distance traveled by the welding end of the welding equipment along the first direction is reduced, which improves the production line cycle time and can effectively improve welding efficiency and welding quantity. At the same time, it greatly reduces the number of power sources used, reducing equipment manufacturing costs and maintenance complexity. By moving each clamping unit 31 synchronously, the timing difference caused by independent control of multiple power sources is avoided, and the positional stability of the workpiece 50 to be welded during the welding process is also guaranteed. It also reduces control steps, thereby realizing relatively low-cost multi-station sequential welding operations in a limited space.

[0022] In this embodiment, as a preferred solution, the clamping assembly 30 further includes a mounting plate 32, the clamping station is formed on the surface of the mounting plate 32, and the surface of the mounting plate 32 is provided with guide grooves 321 corresponding to each clamping unit 31, and each clamping unit 31 is slidably connected in the corresponding guide groove 321. The mounting plate 32 serves as the support base for the clamping station, providing a positioning reference for the workpiece 50 to be welded. The surface of the mounting plate 32 has guide grooves 321 corresponding to each clamping unit 31. Each clamping unit 31 is slidably connected within its corresponding guide groove 321. In other words, each clamping unit 31 has a corresponding guide groove 321. The number of guide grooves 321 corresponds to the number of clamping units 31; the number of guide grooves 321 equals the number of clamping units 31. Furthermore, the position of the guide grooves 321 is determined by the number of clamping units 31. The guide groove 321 provides a preset linear motion trajectory for the clamping unit 31. When the clamping unit 31 slides along the guide groove 321, it avoids the situation where the clamping force direction deviates or the clamping position is inaccurate due to the movement deviation during the clamping process. Through the sliding cooperation between the guide groove 321 and the clamping unit 31, the movement trajectories of multiple clamping units 31 in the same clamping assembly 30 are relatively independent and repeatable, ensuring that each clamping unit 31 can move stably in its own predetermined direction when moving synchronously, thereby realizing the combined force clamping of the workpiece from different directions.

[0023] In this embodiment, as a preferred option, the transmission assembly 20 includes a push block 21 and a plurality of connecting rods 22. The push block 21 is fixedly connected to the driving end of the drive assembly 10 by bolts. One end of each of the plurality of connecting rods 22 is disposed on the surface of the push block 21, and the other end is at least partially located in the mounting plate 32 and is slidably connected to the mounting plate 32 along the second direction. Among them, at least a portion of the connecting rod 22 is projected along the second direction between two adjacent clamping assemblies 30, and is used to move along the second direction to control the corresponding two clamping units 31 in the two adjacent clamping assemblies 30 to switch from the first position to the second position. Another portion of the connecting rod 22 corresponds one-to-one with the remaining clamping units 31, and is used to move along the second direction to control the remaining clamping units 31 to switch from the first position to the second position. Through the connection between the push block 21 and the drive end of the drive assembly 10, the push block 21 can reciprocate along the second direction along with the drive end of the drive assembly 10. Furthermore, since it is fixed by bolts, the push block 21 can be disassembled and replaced from the drive end of the drive assembly 10, facilitating subsequent maintenance. One end of each of the multiple connecting rods 22 is located on the surface of the push block 21; that is, all connecting rods 22 use the push block 21 as a common power input point. When the push block 21 moves, each connecting rod 22 moves synchronously, thereby achieving a single drive source for multiple connecting rods 22. The synchronous drive of link 22 involves at least a partial location of the other end of each link 22 within the mounting plate 32, and slidably connected to the mounting plate 32 along the second direction. Specifically, the mounting plate 32 forms a sliding fit with the link 22 through its holes, guiding and supporting the movement of the link 22 and ensuring that the link 22 maintains linear motion when moving along the second direction. At least a portion of the projection of the link 22 along the second direction lies between two adjacent clamping assemblies 30. In other words, this portion of the link 22 is spatially positioned in the middle region of two adjacent clamping assemblies 30, and when it moves along the second direction, it can simultaneously... The control switches the corresponding two clamping units 31 in two adjacent clamping assemblies 30 from the first position to the second position. That is, one link 22 simultaneously pushes two adjacent clamping units 31, realizing a one-push-two drive mode, reducing the number of links 22 used, making the layout of the transmission assembly 20 more compact, and also ensuring the synchronicity of the actions of the two adjacent clamping units 31. Another part of the links 22 corresponds to the remaining clamping units 31, that is, the number of the other part of the links 22 corresponds to the number of the remaining clamping units 31. Specifically, apart from the two adjacent clamping assemblies 30 corresponding to each other, the number of links 22 is also different. Two clamping units 31 are provided, and each of the remaining clamping units 31 is matched with a connecting rod 22. The connecting rod 22 is set on the surface of the push block 21 corresponding to the position of these clamping units 31. It can be connected by welding or by bolts for detachment. The connection method is a known technology and is only cited here without further details. The surface of the mounting plate 32 facing away from the clamping position is slidably connected to the connecting rod 22 through the hole. When the connecting rod 22 extends into the mounting plate 32, it abuts against the clamping unit 31 during the movement, pushing the clamping unit 31 to move and abut against and clamp the workpiece 50 to be welded.

[0024] In this embodiment, as a preferred option, the end of the connecting rod 22 facing the clamping unit 31 is provided with a slope 25. The slope 25 is an inclined surface that gradually descends along the direction of the connecting rod 22 away from the drive assembly 10. The clamping unit 31 is provided with a slider 311 that is slidably connected to the slope 25. When the clamping unit 31 is in the second position, the slider 311 abuts against the slope 25. Specifically, the slope 25 is inclined in the extension direction of the connecting rod 22, with the end closer to the drive assembly 10 being higher and the end farther from the drive assembly 10 being lower, forming a continuous inclined structure. The clamping unit 31 is provided with a slider 311 that is slidably connected to the slope 25. When the clamping unit 31 is in the second position, the slider 311 abuts against the slope 25, that is, the slider 311 and the slope 25 are always in contact, and the slider 311 can slide relative to the slope 25. The slider 311 is provided with an inclined surface corresponding to the slope 25, that is, the thickness of the inclined surface gradually increases in the direction away from the connecting rod 22, changing the contact between the connecting rod 22 and the clamping unit 31 from point contact or line contact to surface contact, reducing contact stress and improving the smoothness of transmission. Regarding service life, when the drive assembly 10 drives the push block 21 to move in the positive direction of the second direction (i.e., moving towards the direction of the clamping assembly 30), the connecting rod 22 moves synchronously with the push block 21. At this time, the connecting rod 22 moves towards the clamping unit 31, and the slope 25 moves with the connecting rod 22. Since the slope 25 is a gradually descending slope, the contact position of the slider 311 on the slope 25 gradually moves towards the relatively high end of the slope 25. The slider 311 slides relative to the slope 25. At the same time, the slope 25 applies a normal thrust perpendicular to the slope 25 to the slider 311. This normal thrust can be decomposed into a horizontal component, which pushes the clamping unit 31 to move towards the clamping position, so that the clamping unit 31 switches from the first position to the second position, and the clamping surface fits with the workpiece 50 to be welded to achieve clamping. By using the ramp 25 in conjunction with the connecting rod 22, the traditional point contact or line contact transmission is transformed into surface contact sliding, reducing contact stress and thus improving the smoothness and service life of the transmission. Not only is the structure compact, but the transmission efficiency is also improved. Furthermore, the adaptive force decomposition of the ramp ensures the uniform application of clamping force and the reliability of long-term operation. Compared with articulated or gear transmission, it has relatively better wear resistance and motion consistency. In addition, a ceramic coating can be applied to the ramp surfaces corresponding to the slider 311 and the connecting rod 22 to further increase wear resistance and improve service life.

[0025] In this embodiment, as a preferred embodiment, the clamping unit 31 further includes a reset member 312 and a clamping plate 313. The clamping surface is disposed on the clamping plate 313, and the slider 311 is disposed at one end of the clamping plate 313. The reset member 312 is at least partially disposed on the clamping surface of the clamping plate 313 and is located within the guide groove 321. The reset member 312 is used to switch the clamping unit 31 from the second position to the first position. The slider 311 is disposed at one end of the clamping plate 313, meaning that the slider 311 and the clamping plate 313 can be integrally formed, with the slider 311 serving as the clamping plate 313. The transmission component between the connecting rod 22 and the slider 311, when the connecting rod 22 moves, the slope 25 and the slider 311 cooperate to push the clamping plate 313 to move, so that the clamping plate 313 can slide along the guide groove 321, thereby realizing the conversion of clamping and releasing actions. The reset member 312 is arranged between the clamping plate 313 and the mounting plate 32 to provide a reverse reset force after the clamping action is completed. Through the reset force provided by the reset member 312, the slider 311 is switched from the second position to the first position. Furthermore, the reset member 312 enables automatic reset and continuous operation.

[0026] In this embodiment, as a preferred solution, the reset component 312 includes an auxiliary shaft 3121 and a reset spring 3122. One end of the auxiliary shaft 3121 is fixedly connected to the clamping surface of the clamping plate 313 and is located in the guide groove 321. The guide groove 321 has a receiving slot along the direction of extension of the auxiliary shaft 3121. The other end of the auxiliary shaft 3121 is slidably connected in the receiving slot. The reset spring 3122 is sleeved on the periphery of the auxiliary shaft 3121, with one end abutting against the clamping plate 313 and the other end abutting against the groove wall of the guide groove 321. When the drive assembly 10 drives the push block 21 to move forward in the second direction, the connecting rod 22 pushes the clamping plate 313 to move along the guide groove 321 towards the clamping position through the cooperation of the slope 25 and the slider 311. At this time, the auxiliary shaft 3121 slides in the receiving slot with the clamping plate 313, and the reset spring 3122 is relatively compressed and stored. When the drive assembly 10 reverses and resets, the connecting rod 22 retracts, the pushing force of the slope 25 on the slider 311 is released, the reset spring 3122 releases the stored elastic potential energy, and pushes the clamping plate 313 to move in the opposite direction along the guide groove 321, so that the clamping plate 313 returns from the second position to the first position, realizing automatic reset. Through the sliding cooperation between the auxiliary shaft 3121 and the receiving slot, the reset spring 3122 always maintains a linear motion trajectory during compression and release, avoiding the problem of uneven reset force caused by spring bending or offset, and improving the stability and reliability of reset. At the same time, the auxiliary shaft 3121 and the reset spring 3122 are integrated in the guide groove 321, making full use of the internal space of the guide groove 321. There is no need to set up a separate installation area for the reset component 312, making the structure of the clamping unit 31 more compact and further improving the utilization of space.

[0027] In this embodiment, as a preferred option, the clamping assembly 30 is provided with three clamping units 31, and the projections of one clamping unit 31 and the other two clamping units 31 along the second direction are perpendicular to each other. The surface of the mounting plate 32 is provided with support blocks 322, and the number of support blocks 322 corresponds to the number of clamping assemblies 30 and is located at the corresponding clamping positions. Through the vertical arrangement of the three clamping units 31 and the auxiliary support of the support blocks 322, multi-point and multi-directional synchronous clamping of the workpiece 50 to be welded is achieved. That is, the two horizontal clamping units 31 apply horizontal clamping force from the left and right sides to restrict the displacement of the workpiece 50 to be welded in the horizontal direction, the vertical clamping units 31 apply vertical clamping force from above to restrict the displacement of the workpiece 50 to be welded in the vertical direction, and the support blocks 322 provide a support reference from below to restrict the workpiece from falling in the direction of gravity. The three work together to limit and lock the workpiece 50 to be welded in multiple directions, effectively resisting the interference of thermal stress and mechanical vibration on the positioning of the workpiece 50 to be welded during the welding process.

[0028] In this embodiment, as a preferred solution, a support component 40 is also included. The fixed end of the drive component 10 is fixedly connected to the support component 40 by bolts, and the mounting plate 32 is fixedly connected to the support component 40 by bolts. Through the connection between the support component 40 and the fixed end of the drive component 10 and the connection between the support component 40 and the mounting plate 32, the support component 40 can play the role of supporting the foundation, ensuring that the drive end of the drive component 10 always maintains a constant relative position with the support component 40 during the reciprocating motion, thereby ensuring the transmission direction and stroke accuracy of the driving force. The support assembly 40 includes a support plate 41 and a guide shaft 42. The fixed end of the drive assembly 10 is fixedly connected to the surface of the support plate 41 by bolts. One end of the guide shaft 42 is fixedly connected to the surface of the support plate 41 away from the drive assembly 10. The surface of the push block 21 is slidably connected to the outer surface of the guide shaft 42 through an opening, which is used to support and guide the push block 21 and improve the accuracy of the displacement of the push block 21. The support assembly 40 also includes a support base, and a support plate 41 is disposed on the support base. Specifically, the support plate 41 can be welded to the support base, or it can be fixedly connected to the support base by bolts. It can be installed at the processing position by the support base and bolts. The first and second directions do not refer to just one orientation. For example, if the first or second direction is north-south, then facing south or north is the first or second direction. Therefore, the first and second directions can be selected according to the actual usage. Furthermore, the drive assembly 10 includes a drive cylinder, the fixed end of which is fixedly connected to the surface of the support plate 41 by bolts, the surface of the support plate 41 is provided with a clearance opening, the output end of the drive cylinder is fixedly connected to a connecting rod, one end of which passes through the clearance opening along the second direction and is fixedly connected to the push block 21 by bolts, for pushing the push block 21 to reciprocate along the second direction; The drive assembly 10 can be an electric push rod, with one end of the connecting rod fixedly connected to the output end of the electric push rod by bolts, for pushing the push block 21 to reciprocate along the second direction.

[0029] Example 2: According to Embodiment 1, except for the number of clamping units 31, the other structures are the same as in Embodiment 1. In this embodiment, the clamping assembly 30 is provided with four clamping units 31. The four clamping units 31 are arranged in a rectangular array on the surface of the mounting plate 32. That is, the four clamping units 31 can be directly driven to move synchronously through the connecting rod 22, so that the four clamping units 31 can clamp the workpiece directly at the same time. Specifically, each pair of the four clamping units 31 is located on a straight line. The two clamping units 31 located in the first direction have adjacent clamping units 31. The other two clamping units 31 are arranged in a direction that is perpendicular to both the first and second directions. The projection of part of the connecting rod 22 along the second direction is between the two adjacent clamping units 31 of the two adjacent clamping assemblies 30 along the first direction. Part of the connecting rod 22 is arranged corresponding to the other two clamping units 31. When multiple connecting rods 22 move simultaneously along the second direction, the slope 25 cooperates with the slider 311 of the corresponding clamping unit 31 to enable the four clamping units 31 to directly clamp the workpiece simultaneously. Through synchronous clamping at four angles, the workpiece can be centered and clamped. Four clamping units 31 apply force synchronously inward from the four sides of the rectangular workpiece, which can automatically push the workpiece to the center position without the need for an additional positioning mechanism, significantly improving the alignment accuracy during welding. By adjusting the stroke of the connecting rod 22 or the angle of the slope 25, it can also adapt to rectangular workpieces of different sizes. The synchronization of the four clamping units 31 is achieved by the transmission of the connecting rod 22, eliminating the need for complex electronic control, reducing system cost and failure rate. The projection of the connecting rod 22 is staggered between the adjacent clamping units 31 of the two adjacent clamping assemblies 30, reducing the overall space occupied, reducing the number of drive sources used, and reducing the stroke of the welding end of the welding mechanism along the first direction.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous welding locking fixture structure, characterized in that: It includes a drive assembly (10), a transmission assembly (20), and a plurality of clamping assemblies (30) arranged sequentially along a first direction; The drive assembly (10) is provided with a drive end that reciprocates along the second direction, and the power input end of the transmission assembly (20) is provided at the drive end of the drive assembly (10). The clamping assembly (30) includes at least three clamping units (31), which together form a clamping station for mounting the workpiece (50) to be welded, and each has a clamping surface facing the clamping station. Each clamping unit (31) of the multiple clamping assemblies (30) is connected to the power output end of the transmission assembly (20). Each clamping unit (31) is provided with a first position and a second position. The power output end of the transmission assembly (20) is used to control each clamping unit (31) to switch from the first position to the second position. When the clamping unit (31) is in the first position, the clamping surface of the clamping unit (31) is spaced apart from the corresponding workpiece (50) to be welded. When the clamping unit (31) is in the second position, the clamping surface of the clamping unit (31) is in contact with the corresponding workpiece (50) to be welded.

2. The continuous welding locking fixture structure according to claim 1, characterized in that: The clamping assembly (30) also includes a mounting plate (32), the clamping station is formed on the surface of the mounting plate (32), and the surface of the mounting plate (32) is provided with guide grooves (321) corresponding to each clamping unit (31), and each clamping unit (31) is slidably connected in the corresponding guide groove (321).

3. The continuous welding locking fixture structure according to claim 2, characterized in that: The transmission assembly (20) includes a push block (21) and a plurality of connecting rods (22). The push block (21) is fixedly connected to the drive end of the drive assembly (10) by bolts. One end of each of the plurality of connecting rods (22) is disposed on the surface of the push block (21), and the other end is at least partially located in the mounting plate (32) and is slidably connected to the mounting plate (32) in the second direction. At least a portion of the connecting rods (22) are projected along the second direction between two adjacent clamping assemblies (30) and are used to move along the second direction to control the corresponding two clamping units in the two adjacent clamping assemblies (30) to switch from the first position to the second position. Another portion of the connecting rods (22) correspond one-to-one with the remaining clamping units (31) and are used to move along the second direction to control the remaining clamping units (31) to switch from the first position to the second position.

4. The continuous welding locking fixture structure according to claim 3, characterized in that: The connecting rod (22) has a slope (25) at one end facing the clamping unit (31). The slope (25) is an inclined surface that gradually descends along the direction of the connecting rod (22) away from the drive assembly (10). The clamping unit (31) is provided with a slider (311) that is slidably connected to the slope (25). When the clamping unit (31) is in the second position, the slider (311) abuts against the slope (25).

5. The continuous welding locking fixture structure according to claim 4, characterized in that: The clamping unit (31) further includes a reset member (312) and a clamping plate (313). The clamping surface is disposed on the clamping plate (313), and the slider (311) is disposed at one end of the clamping plate (313). The reset member (312) is at least partially disposed on the clamping surface of the clamping plate (313) and located in the guide groove (321). The reset member (312) is used to switch the clamping unit (31) from the second position to the first position.

6. The continuous welding locking fixture structure according to claim 5, characterized in that: The reset component (312) includes an auxiliary shaft (3121) and a reset spring (3122). One end of the auxiliary shaft (3121) is fixedly connected to the clamping surface of the clamping plate (313) and is located in the guide groove (321). The guide groove (321) has a receiving slot hole along the direction of extension of the auxiliary shaft (3121). The other end of the auxiliary shaft (3121) is slidably connected in the receiving slot hole. The reset spring (3122) is sleeved on the periphery of the auxiliary shaft (3121), with one end abutting against the clamping plate (313) and the other end abutting against the groove wall of the guide groove (321).

7. The continuous welding locking fixture structure according to claim 2, characterized in that: The clamping assembly (30) is provided with three clamping units (31), and the projection of one of the clamping units (31) and the other two clamping units (31) along the second direction is perpendicular to each other. The surface of the mounting plate (32) is provided with a support block (322), and the number of support blocks (322) corresponds to the number of clamping assemblies (30) and is located at the corresponding clamping station.

8. The continuous welding locking fixture structure according to claim 2, characterized in that: The clamping assembly (30) is provided with four clamping units (31), which are arranged in a rectangular array on the surface of the mounting plate (32).

9. The continuous welding locking fixture structure according to claim 3, characterized in that: It also includes a support assembly (40), the fixed end of the drive assembly (10) is fixedly connected to the support assembly (40) by bolts, and the mounting plate (32) is fixedly connected to the support assembly (40) by bolts.

10. The continuous welding locking fixture structure according to claim 9, characterized in that: The support assembly (40) includes a support plate (41) and a guide shaft (42). The fixed end of the drive assembly (10) is fixedly connected to the surface of the support plate (41) by bolts. One end of the guide shaft (42) is fixedly connected to the surface of the support plate (41) away from the drive assembly (10). The surface of the push block (21) is slidably connected to the outer surface of the guide shaft (42) through a through hole.

11. The continuous welding locking fixture structure according to claim 10, characterized in that: The drive assembly (10) includes a drive cylinder. The fixed end of the drive cylinder is fixedly connected to the surface of the support plate (41) by bolts. The surface of the support plate (41) is provided with a clearance opening. The output end of the drive cylinder is fixedly connected to a connecting rod. One end of the connecting rod passes through the clearance opening along the second direction and is fixedly connected to the push block (21) by bolts.

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