Clamping tool for welding workpiece and welding tool

Abstract

The invention provides a clamping tool for welding a workpiece and a welding tool, and the clamping tool comprises a mounting table, a clamping device and a clamping device, the panel pressing device is arranged on the mounting table; the side plate pressing device comprises a pressing rotating plate and a driving assembly, the pressing rotating plate is pivotally arranged on the mounting table through a pivot, the driving assembly is used for driving the pressing rotating plate to rotate, and the pressing rotating plate is provided with a first abutting face used for abutting a workpiece against a side plate of the to-be-welded panel; the first bottom plate pressing device is arranged on the pressing rotating plate, the first bottom plate pressing device comprises a first driving source, a first telescopic rod and a first pressing head arranged at the end of the first telescopic rod, the telescopic direction of the first telescopic rod is perpendicular to the pivot, and the first pressing head is provided with a second abutting face for abutting a workpiece against a bottom plate of the to-be-welded panel; and the driving assembly and the first driving source are in electric control connection with the control device. By means of the technical scheme, the problem that in the prior art, a clamping tool for welding workpieces is high in cost can be effectively solved.

Description

Technical Field

[0001] The invention relates to the field of mechanical tooling, and in particular to a clamping tooling and a welding tooling for welding workpieces. Background Art

[0002] In automatic welding jigs, clamping jigs are very important components. They are usually used to clamp the panel to be welded and the workpiece to ensure the stability and accuracy of the workpiece during the welding process. However, when the bottom plate and side plate of the panel to be welded need to be welded, the traditional clamping jigs usually need to use a first clamping piece that clamps the bottom plate and the workpiece separately and a second clamping piece that clamps the side plate and the workpiece separately. This type of clamping jig has a complex structure and requires multiple clamping pieces to complete the clamping task, which not only increases the manufacturing cost, but also increases the maintenance and management cost of the jig.

[0003] Therefore, seeking a simpler, more efficient and economical clamping tooling design solution has become an important issue in the welding industry. Summary of the invention

[0004] The main purpose of the present invention is to provide a clamping fixture for welding workpieces and a welding fixture, so as to solve the problem of high cost of the clamping fixture for welding workpieces in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a clamping fixture for welding workpieces is provided, which is used to clamp multiple workpieces on a panel to be welded, the panel to be welded includes a bottom plate and a side plate, and the clamping fixture includes: a mounting table; a panel clamping device, which is arranged on the mounting table, and is used to clamp the panel to be welded on the mounting table; a side plate clamping device, including a clamping rotating plate pivotally arranged on the mounting table through a pivot and a driving component that drives the clamping rotating plate to rotate, the clamping rotating plate has a first abutting surface for pressing the workpiece against the side plate of the panel to be welded; a first bottom plate clamping device, which is arranged on the clamping rotating plate, the first bottom plate clamping device includes a first driving source, a first telescopic rod driven by the first driving source, and a first clamping head arranged at the end of the first telescopic rod, the telescopic direction of the first telescopic rod is perpendicular to the pivot, and the first clamping head has a second abutting surface for pressing the workpiece against the bottom plate of the panel to be welded; a control device, a driving component and a first driving source are all electrically connected to the control device.

[0006] In one embodiment, the mounting table includes a table plate, a positioning structure disposed on the table plate for positioning the panel to be welded, a fixed plate disposed perpendicular to the table plate and located on the circumferential outside of the positioning structure, and a slide disposed on the fixed plate and movable toward and away from the table plate, the clamping turn plate can be pivotally disposed on the slide, the side plate clamping device also includes a second driving source and a second telescopic rod driven by the second driving source, and the slide is connected to the end of the second telescopic rod.

[0007] In one embodiment, the slide table includes a pivot connection and two sliders arranged below the pivot connection. A guide rail extending in a direction perpendicular to the table plate is arranged on the fixed plate. The sliders cooperate with the guide rails. The pivot of the pressing turn plate can be pivotally arranged on the pivot connection.

[0008] In one embodiment, a mounting hole is provided on the pressing rotating plate, the first driving source is fixed to the mounting hole through a mounting bracket, and a cable of the first driving source passes downward through the mounting hole.

[0009] In one embodiment, the driving assembly includes a third driving source fixedly arranged on the fixed plate, a third telescopic rod that can be extended and retracted in a direction perpendicular to the fixed plate, and a pressing head fixed to the driving end of the third telescopic rod. A first avoidance hole for avoiding the pressing head is provided on the clamping turn plate, and the first avoidance hole is a long hole. The pressing head has a crimping surface for pressing the clamping turn plate downward.

[0010] In one embodiment, the slide table includes a mounting plate and a pivot connection and a slider arranged on the upper and lower sides of the mounting plate. A guide rail extending in a direction perpendicular to the table plate is arranged on the fixed plate. The slider cooperates with the guide rail. The pivot of the pressing turn plate can be pivotally arranged on the pivot connection, and the third driving source is arranged on the mounting plate.

[0011] In one embodiment, a middle hole is provided on the bottom plate of the panel to be welded, and a second avoidance hole corresponding to the middle hole is provided in the middle of the table plate, and the clamping tool also includes: a second bottom plate clamping device, including a fourth driving source arranged on the lower surface of the table plate, a fourth telescopic rod extending outward from the second avoidance hole and driven by the fourth driving source, a connecting plate connected to the fourth telescopic rod, and a second clamping head arranged on the connecting plate, the second clamping head having a third pressing surface for pressing the workpiece against the bottom plate of the panel to be welded.

[0012] In one embodiment, the second bottom plate clamping device also includes a fifth driving source arranged on the lower surface of the table and a fifth telescopic rod telescopic along the length direction of the second avoidance hole, and the fourth driving source is drivingly connected to the driving end of the fifth telescopic rod.

[0013] In one embodiment, the panel pressing device includes a rotary pressing cylinder and a third pressing head, the driving shaft of the rotary pressing cylinder drives the third pressing head to move and rotate, and the third pressing head has a fourth abutting surface against the panel to be welded.

[0014] According to another aspect of the present invention, there is provided a welding tool for welding workpieces, comprising: a clamping tool, the clamping tool being the clamping tool described above; and a welding manipulator, which is arranged on one side of the clamping tool.

[0015] By applying the technical solution of the present invention, before welding the panel to be welded, the panel to be welded is first placed on the mounting table. Then the control device controls the driving assembly, and the driving assembly drives the clamping rotating plate to rotate so that the first abutting surface contacts the workpiece and abuts against the side plate. When the clamping rotating plate is rotated into place, the first telescopic rod just rotates to a direction perpendicular to the bottom plate and is opposite to the workpiece on the bottom plate. Then, the control device controls the first driving source, and the first driving source drives the first telescopic rod to extend and retract, so that the first clamping head contacts the workpiece and abuts against the bottom plate. Through such a setting, the workpiece positioned on the bottom plate and the side plate can be firmly clamped on the panel to be welded. Finally, the subsequent welding work can be prepared. As can be seen from the above, in this embodiment, the clamping rotating plate actually acts as a mounting seat for the first driving source, and the above structure can bring the following benefits: First, simplifying the structure: by designing a clamping fixture that can clamp the bottom plate and the side plate at the same time, the number of mounting seats can be reduced, thereby simplifying the overall structure; second, reducing costs: reducing the number of mounting seats means reducing manufacturing costs because fewer materials and manufacturing processes are required. At the same time, due to the simplified structure, maintenance and management costs will be reduced accordingly. Third, reduce space occupation: The simplified structure can take up less space, which is especially important for work environments with limited space.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a clamping fixture for welding workpieces according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 An enlarged structural diagram of the clamping fixture at A;

[0020] Figure 3 Shows Figure 2 An enlarged structural diagram of the clamping fixture at B;

[0021] Figure 4 Shows Figure 2 An enlarged structural diagram of the clamping fixture at E;

[0022] Figure 5 Shows Figure 1 A schematic diagram of a three-dimensional structure of a partial structure of a clamping fixture at an angle;

[0023] Figure 6 Shows Figure 5 An enlarged structural diagram of the clamping fixture at C;

[0024] Figure 7 Shows Figure 5 A schematic diagram of the three-dimensional structure of the clamping fixture from another angle;

[0025] Figure 8 Shows Figure 1 A top view of a clamping fixture;

[0026] Fig. 9 Shows Figure 8 A cross-sectional view of the clamping fixture along the DD direction; and

[0027] Fig.10 Shows Figure 1 Schematic diagram of the three-dimensional structure of the panel to be welded and the workpiece clamped by the clamping fixture.

[0028] The above drawings include the following reference numerals:

[0029] 1. Panel to be welded; 2. Workpiece; 3. Bottom plate; 4. Middle hole; 5. Side plate; 10. Base; 20. Mounting table; 21. Table; 211. Second avoidance hole; 22. Positioning structure; 23. Slide; 231. Pivot connector; 232. Slider; 233. Mounting plate; 24. Fixed plate; 241. Guide rail; 30. Panel clamping device; 31. Rotary clamping cylinder; 32. Third clamping head; 411. Connecting plate; 412. Second clamping Tightening head; 413, tightening rotating plate; 4131, mounting hole; 4132, mounting bracket; 414, first avoidance hole; 421, fourth driving source; 423, fifth driving source; 425, driving assembly; 4251, third driving source; 4252, third telescopic rod; 4253, pressing head; 4254, crimping surface; 426, second driving source; 50, first bottom plate clamping device; 51, first driving source; 52, first clamping head; 60, pivot. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] like Figures 1 to 5 and Fig.10As shown, in this embodiment, the clamping fixture is used to clamp multiple workpieces 2 on the panel 1 to be welded. The panel 1 to be welded includes a base plate 3 and a side plate 5. The clamping fixture includes: a mounting table 20, a panel clamping device 30, a side plate clamping device and a first base plate clamping device 50. Among them, the panel clamping device 30 is arranged on the mounting table 20, and is used to press the panel 1 to be welded on the mounting table 20; the side panel clamping device includes a clamping turn plate 413 pivotally arranged on the mounting table 20 through a pivot 60 and a driving component 425 that drives the clamping turn plate 413 to rotate, and the clamping turn plate 413 has a first abutting surface for pressing the workpiece 2 against the side plate 5 of the panel 1 to be welded; the first bottom plate clamping device 50 is arranged on the clamping turn plate 413, and the first bottom plate clamping device 50 includes a first driving source 51, a first telescopic rod driven by the first driving source 51, and a first clamping head 52 arranged at the end of the first telescopic rod, the telescopic direction of the first telescopic rod is perpendicular to the pivot 60, and the first clamping head 52 has a second abutting surface for pressing the workpiece 2 against the bottom plate 3 of the panel 1 to be welded; the driving component 425 and the first driving source 51 are both electrically connected to the control device.

[0035] Applying the technical solution of this embodiment, before welding the panel 1 to be welded, the panel 1 to be welded is first placed on the mounting table 20. Then the control device controls the driving component 425, and the driving component 425 drives the clamping rotating plate 413 to rotate, so that the first abutting surface contacts the workpiece 2 and abuts against the side plate 5. When the clamping rotating plate 413 is rotated into place, the first telescopic rod just rotates to a direction perpendicular to the bottom plate 3 and is opposite to the workpiece 2 on the bottom plate 3. Then, the control device controls the first driving source 51, and the first driving source 51 drives the first telescopic rod to extend and retract, so that the first clamping head 52 contacts the workpiece 2 and abuts against the bottom plate 3. Through such an arrangement, the workpiece positioned on the bottom plate 3 and the side plate 5 can be firmly clamped on the panel 1 to be welded. Finally, prepare for subsequent welding work. As can be seen from the above, in this embodiment, the clamping turntable 413 actually acts as a mounting seat for the first driving source 51. The above structure can bring the following benefits: First, simplify the structure: by designing a clamping fixture that can clamp the bottom plate and the side plate at the same time, the number of mounting seats can be reduced, thereby simplifying the overall structure; second, reduce costs: reducing the number of mounting seats means reducing manufacturing costs because less materials and manufacturing processes are required. At the same time, due to the simplified structure, maintenance and management costs will also be reduced accordingly. Third, reduce space occupancy: The simplified structure can take up less space, which is particularly important for work environments with limited space.

[0036] Preferably, if Figure 1 As shown, in this embodiment, the clamping tool further includes a base 10 , and a mounting platform 20 is disposed on the base 10 , so that the mounting platform 20 is at a certain height, which is convenient for the staff to place the workpiece 2 on the mounting platform 20 .

[0037] Further preferably, in this embodiment, the mounting platforms 20 are multiple and spaced apart along the length direction of the base 10. The above structure enables multiple workpieces 2 to be placed on one clamping fixture, thereby improving welding efficiency and facilitating large-scale production.

[0038] More preferably, if Figure 1 As shown, in this embodiment, the table 21 is an inclined table. The above structure can reduce the space occupied by the mounting table 20 on the horizontal plane, so that more mounting tables 20 can be placed on one base 10, thereby further improving the welding efficiency and facilitating large-scale production. In addition, the above structure can also utilize the gravity of the panel 1 to be welded, so that the positioning of the panel 1 to be welded is more accurate.

[0039] More preferably, if Figure 1 As shown, in this embodiment, the inclination directions of two adjacent inclined table plates are opposite. The above structure makes the welding space between the two adjacent mounting platforms 20 larger, which is convenient for subsequent welding by the welding robot and improves the welding quality and welding efficiency.

[0040] like Figure 2 , Figures 4 to 6As shown, in this embodiment, the mounting table 20 includes a table 21, a positioning structure 22 disposed on the table 21 for positioning the panel 1 to be welded, a fixed plate 24 disposed perpendicularly to the table 21 and located on the circumferential outer side of the positioning structure 22, and a slide 23 disposed on the fixed plate 24 and movable toward and away from the table 21, the clamping turntable 413 is pivotally disposed on the slide 23, the side plate clamping device also includes a second driving source 426 and a second telescopic rod driven by the second driving source 426, and the slide 23 is connected to the end of the second telescopic rod. The above structure has at least the following five advantages: First, it enhances the convenience of operation and the efficiency of workpiece installation. By introducing the slide 23 that can move in a direction perpendicular to the table 21, and the second driving source 426 and the second telescopic rod that drive the slide 23 to move, the clamping turntable 413 can achieve rapid movement from the clamping position (the position of clamping the workpiece 2) to the avoidance position (the position away from the workpiece 2). This means that when installing or removing the panel 1 to be welded, the clamping turntable 413 can be automatically moved to the avoidance position by controlling the second driving source 426 and the second telescopic rod, providing sufficient space for the smooth entry and exit of the workpiece 2, greatly shortening the preparation and disassembly time of the workpiece 2, and improving production efficiency; second, refined control and clamping accuracy. The combination of the slide 23 and the pivotable clamping turntable 413 enables the clamping turntable 413 to achieve precise clamping at the clamping position of the workpiece 2, and completely avoid the installation area of ​​the workpiece 2 at the avoidance position. This refined control capability ensures the position stability and clamping accuracy of the workpiece 2 during the welding process, avoids welding defects caused by improper clamping, and improves welding quality and yield; third, reduces structural interference and optimizes spatial layout. If the combination of the slide 23 and the second driving source 426 is not used, the clamping turntable 413 needs to rotate significantly to avoid the workpiece 2, which not only increases the complexity of the structure, but also may cause interference with other components. In this embodiment, the clamping turntable 413 only needs to rotate slightly to cooperate with the movement of the slide 23 to achieve avoidance. This design not only simplifies the structure and reduces the interference between components, but also further optimizes the spatial layout of the equipment, so that the tooling can be designed more compactly while maintaining efficient functions, saving valuable production space. Fourth, improve the flexibility and adaptability of the equipment. The combination of the slide 23 and the pivotable clamping turntable 413 gives the side plate clamping device the ability to adapt to a variety of workpiece sizes and shapes. The equipment can flexibly adjust the position and angle of the clamping turntable 413 according to the specific characteristics of the side plate 5 of the panel 1 to be welded, so as to achieve effective clamping of different workpieces. This high degree of flexibility and adaptability provides the possibility for the wide application of welding tooling, especially when dealing with non-standard or customized welding tasks. Fifth, cost control and economic benefits. This embodiment simplifies the structure of the equipment and reduces the manufacturing cost by reducing the rotation amplitude of the clamping turntable 413.At the same time, due to the improved space utilization and production efficiency, the production cost of the panel is reduced and the economic benefits of the welding tooling are improved.

[0041] like Figure 2 , Figures 4 to 6 As shown, in this embodiment, the slide table 23 includes a pivot connection 231 and two sliders 232 arranged below the pivot connection 231, and the fixed plate 24 is provided with a guide rail 241 extending in a direction perpendicular to the table 21, and the sliders 232 are guided and matched with the guide rail 241, and the pivot 60 of the clamping rotating plate 413 is pivotally arranged on the pivot connection 231. This guide matching design ensures the stability and accuracy of the clamping rotating plate 413, avoids shaking and deviation during the clamping process, and improves the welding quality.

[0042] like Figure 4 As shown, in this embodiment, a mounting hole 4131 is provided on the pressing rotating plate 413, and the first driving source 51 is fixed to the mounting hole 4131 through a mounting bracket 4132, and the cable of the first driving source 51 passes downward through the mounting hole 4131. This cable passing method enables the pressing rotating plate 413 to isolate the welding manipulator from the cable, reducing the possibility of the cable contacting the sparks generated by welding during the working process, thereby protecting the cable. In addition, the above structure also simplifies the wiring of the tooling and improves the convenience of maintenance and repair.

[0043] like Figures 4 to 6 , Figure 8 and Fig. 9As shown, in this embodiment, the driving assembly 425 includes a third driving source 4251 fixedly arranged on the fixed plate 24, a third telescopic rod 4252 that can be extended and retracted in a direction perpendicular to the fixed plate 24, and a pressing head 4253 fixed to the driving end of the third telescopic rod 4252. The pressing rotating plate 413 is provided with a first avoidance hole 414 for avoiding the pressing head 4253. The first avoidance hole 414 is a long hole. The pressing head 4253 has a pressing surface 4254 for pressing the pressing rotating plate 413 downward. Specifically, when the pressing rotating plate 413 needs to be pressed downward to press the workpiece, the third driving source 4251 drives the third telescopic rod 4252 to retract, and the third telescopic rod 4252 drives the pressing head 4253 to move downward. The pressing surface 4254 of the pressing head 4253 applies a downward force to the pressing rotating plate 413, so that the pressing rotating plate 413 rotates and presses the workpiece 2 downward. When it is necessary to install or remove the panel 1 to be welded, the third driving source 4251 drives the third telescopic rod 4252 to extend, and the third telescopic rod 4252 applies an upward force to the clamping rotating plate 413, so that the clamping rotating plate 413 rotates and moves upward away from the workpiece 2. Since the first avoidance hole 414 is a long hole (the extension direction of the long hole is perpendicular to the pivot direction of the clamping rotating plate 413), when the clamping rotating plate 413 rotates, the side of the pressure head 4253 will not interfere with the clamping rotating plate 413, thereby ensuring that the clamping rotating plate 413 can rotate freely. The above structure is simple and can smoothly drive the clamping rotating plate 413 to rotate upward or downward.

[0044] like Figure 4 As shown, in this embodiment, the slide 23 includes a mounting plate 233 and a pivot connection member 231 and a slider 232 disposed on the upper and lower sides of the mounting plate 233. The fixed plate 24 is provided with a guide rail 241 extending in a direction perpendicular to the table 21. The slider 232 guides and cooperates with the guide rail 241. The pivot 60 of the pressing rotating plate 413 is pivotally disposed on the pivot connection member 231, and the third driving source 4251 is disposed on the mounting plate 233. The above structure is simple and compact, making the structure of the clamping tooling concise.

[0045] like Figure 2 , Figure 3 , Figure 5 , Figure 7 As shown, in the present embodiment, a middle hole 4 is provided on the bottom plate 3 of the panel 1 to be welded, and a second avoidance hole 211 corresponding to the middle hole 4 is provided in the middle of the table plate 21, and the clamping tool also includes: a second bottom plate clamping device, including a fourth driving source 421 arranged on the lower surface of the table plate 21, a fourth telescopic rod extending outward from the second avoidance hole 211 and driven by the fourth driving source 421, a connecting plate 411 connected to the fourth telescopic rod, and a second clamping head 412 arranged on the connecting plate 411, and the second clamping head 412 has a third pressing surface for pressing the workpiece 2 against the bottom plate 3 of the panel 1 to be welded.

[0046] Specifically, Figure 2 , Figure 3 , Figure 5 , Figure 7 As shown, in this embodiment, by setting a second avoidance hole 211 corresponding to the middle hole 4 of the bottom plate 3 of the panel 1 to be welded in the middle of the table 21, the second bottom plate clamping device can cleverly utilize the space below the table 21. The fourth driving source 421 and the fourth telescopic rod extend directly outward from the second avoidance hole 211, which not only avoids direct interference with the middle hole, but also fully utilizes the internal space of the mounting table (inside the second avoidance hole 211). This compact layout reduces the size of the clamping tooling and reduces the floor space of the clamping tooling.

[0047] like Figure 2 , Figure 3 , Figure 5 , Figure 7 As shown, in this embodiment, the second bottom plate clamping device also includes a fifth driving source 423 arranged on the lower surface of the table 21 and a fifth telescopic rod that is telescopic along the length direction of the second avoidance hole 211, and the fourth driving source 421 is drivingly connected to the driving end of the fifth telescopic rod. By introducing the fifth driving source 423 and the fifth telescopic rod, the second clamping head 412 connected to the fourth driving source 421 can achieve precise movement between the top of the workpiece and the top of the second avoidance hole 211. This structural design allows the position of the clamping device to be quickly adjusted without changing the overall layout of the welding tooling, so that when placing or removing the panel 1 to be welded, the second clamping head 412 can automatically move to the top of the second avoidance hole 211, ensuring the smooth installation and removal of the panel 1 to be welded, greatly improving the convenience of operation, and reducing the labor intensity and operation time of the operator.

[0048] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the panel pressing device 30 includes a rotary pressing cylinder 31 and a third pressing head 32. The driving shaft of the rotary pressing cylinder 31 drives the third pressing head 32 to move and rotate. The third pressing head 32 has a fourth abutting surface that abuts against the panel 1 to be welded. The above structure can drive the third pressing head 32 to rotate and move through one component, which simplifies the structure of the driving device and reduces the production cost.

[0049] In the present embodiment, the clamping tool for welding the workpiece also includes a trigger button, which is electrically connected to the control device. After the staff puts the panel 1 to be welded in place, the staff presses the trigger button, and the control device controls the rotary clamping cylinder 31 of the panel clamping device 30 to move so that the third clamping head 32 clamps the panel 1 to be welded. Then multiple workpieces 2 are placed in the preset position of the panel 1 to be welded (the panel 1 to be welded itself has a riveting column to position the workpiece). After the workpiece 2 is placed in place, the staff presses the trigger button, the slide 23 slides forward to the preset position, and then the drive assembly 425 drives the clamping turn plate 413 to rotate downward to clamp the workpiece on the side plate. While the slide 23 is moving, the fifth drive source 423 drives the fifth telescopic rod to retract and extend to drive the second clamping head 412 to move above the workpiece. Then, the staff presses the trigger button again, and the fourth telescopic rod of the fourth drive source 421 retracts, and at the same time, the first telescopic rod of the first drive source 51 extends, so that the first bottom plate clamping device and the second bottom plate clamping device simultaneously clamp the workpiece on the bottom plate. The above drive control method makes the clamping efficiency of the workpiece higher, and finally improves the welding efficiency.

[0050] Preferably, in this embodiment, the base 10 and the mounting platform 20 are also provided with cable fixing buckles, and the cables of each driving source can be fixed at a preset position by the cable fixing buckles to prevent the cables from interfering with the work of the staff and the welding robot.

[0051] The following is attached Figure 1 and attached Figure 2 A detailed description of the clamping fixture used for welding workpieces is given:

[0052] Figure 1 The overall structure of the clamping fixture for welding workpieces is shown. In this view, the base 10, the mounting table 20, the panel clamping device 30, the side plate clamping device and the first bottom plate clamping device 50 can be seen. The mounting table 20 is a basic table, on which a positioning structure 22 is provided for accurately placing the panel 1 to be welded. The panel 1 to be welded includes a bottom plate 3 and a side plate 5, and the design focus of the entire fixture is to be able to clamp the workpiece 2 on the bottom plate 3 and the side plate 5 at the same time to ensure the stability and accuracy of the welding process.

[0053] Specifically, the panel clamping device 30 clamps the panel 1 to be welded by rotating the clamping cylinder 31 and the third clamping head 32. The driving shaft of the rotating clamping cylinder 31 can drive the third clamping head 32 to move and rotate, and the third clamping head 32 has a fourth abutting surface that abuts against the panel 1 to be welded. This design ensures that the panel 1 to be welded can be stably fixed on the mounting table 20 during the entire welding process.

[0054] The side plate clamping device includes a clamping rotating plate 413 and a driving assembly 425. The clamping rotating plate 413 is pivotally arranged on the mounting table 20 through a pivot 60. The clamping rotating plate 413 has a first abutting surface for abutting the workpiece 2 against the side plate 5 of the panel 1 to be welded. The driving assembly 425 includes a third driving source 4251 and a third telescopic rod 4252. A pressing head 4253 is fixed to the end of the third telescopic rod 4252. The pressing head 4253 has a crimping surface 4254 for pressing the clamping rotating plate 413 downward. A first avoidance hole 414 is also provided on the clamping rotating plate 413 to prevent the pressing head 4253 from interfering with the clamping rotating plate 413 during the pressing process.

[0055] The first bottom plate clamping device 50 is arranged on the clamping rotating plate 413, and includes a first driving source 51, a first telescopic rod and a first clamping head 52. The telescopic direction of the first telescopic rod is perpendicular to the pivot 60, and the first clamping head 52 has a second abutting surface in contact with the workpiece 2 on the bottom plate 3. The first driving source 51 is fixed to the mounting hole 4131 of the clamping rotating plate 413 through the mounting bracket 4132, and the cable of the first driving source 51 passes downward from the mounting hole 4131 to ensure the electrical connection with the control device.

[0056] Figure 2 Further details are shown Figure 1 The structure of the side plate clamping device and the first bottom plate clamping device 50 shown in FIG. The clamping rotating plate 413 can be pivoted by the drive of the driving assembly 425. The clamping rotating plate 413 is fixed on the slide 23, and the slide 23 is moved by the second telescopic rod driven by the second driving source 426, so that the slide 23 can move toward and away from the table 21.

[0057] The structure of the slide 23 includes a pivot connection 231 and two sliders 232, wherein the pivot connection 231 is used to connect the pivot 60 of the pressing rotating plate 413, and the slider 232 cooperates with the guide rail 241 on the fixed plate 24 to ensure the smooth movement of the slide 23. When the slide 23 moves to a suitable position, the driving assembly 425 is started, and the pressing head 4253 is driven by the third driving source 4251 and the third telescopic rod 4252, thereby pressing down the pressing rotating plate 413, so that its first abutting surface is in close contact with the workpiece 2 and the side plate 5.

[0058] Technical effects:

[0059] By applying the above technical solution, the clamping fixture of the present invention can simultaneously clamp the workpiece 2 on the bottom plate 3 and the side plate 5 of the panel to be welded, reducing the need for a first clamping member that separately clamps the bottom plate and the workpiece and a second clamping member that separately clamps the side plate and the workpiece in the traditional clamping fixture. This not only simplifies the structure of the clamping fixture and reduces the manufacturing cost, but also reduces the maintenance and management cost of the fixture, and improves the stability and efficiency of the welding process. At the same time, the addition of the second bottom plate clamping device further improves the flexibility and accuracy of clamping, so that the entire fixture can also operate effectively in a working environment with limited space.

[0060] In summary, the clamping tool design of the present invention cleverly combines multiple clamping functions in one, and through a streamlined structure and efficient control, it achieves the versatility and high efficiency of the clamping tool, providing a more economical, simple and efficient clamping solution for the welding industry.

[0061] The present application also provides a welding tool for welding workpieces. According to an embodiment of the welding tool for welding workpieces of the present application, the welding tool comprises: a clamping tool and a welding manipulator. The clamping tool is the above-mentioned clamping tool. The welding manipulator is arranged on one side of the clamping tool. Since the above-mentioned clamping tool for welding workpieces has the functions of simplifying the structure, reducing costs, and saving space, the welding tool having the same also has the above-mentioned advantages.

[0062] Preferably, in this embodiment, there are at least two clamping fixtures, and the welding manipulator is located between the two clamping fixtures. Specifically, when the welding manipulator performs welding processing on the panel 1 to be welded on one of the clamping fixtures, the staff can place the panel 1 to be welded on another clamping fixture. The above structure can shorten the waiting time of the welding manipulator, thereby improving the welding efficiency.

[0063] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping fixture for welding workpieces, used for clamping a plurality of workpieces (2) on a panel to be welded (1), wherein the panel to be welded (1) comprises a bottom plate (3) and a side plate (5), characterized in that: The clamping tool comprises: Mounting table (20); A panel pressing device (30) is arranged on the mounting platform (20) and is used to press the panel to be welded (1) onto the mounting platform (20); A side plate clamping device comprises a clamping rotating plate (413) pivotally arranged on the mounting platform (20) via a pivot shaft (60) and a driving assembly (425) for driving the clamping rotating plate (413) to rotate, wherein the clamping rotating plate (413) has a first abutting surface for abutting the workpiece (2) against the side plate (5) of the panel (1) to be welded; A first bottom plate clamping device (50) is arranged on the clamping rotating plate (413), the first bottom plate clamping device (50) comprising a first driving source (51), a first telescopic rod driven by the first driving source (51), and a first clamping head (52) arranged at the end of the first telescopic rod, the telescopic direction of the first telescopic rod is perpendicular to the pivot (60), and the first clamping head (52) has a second pressing surface for pressing the workpiece (2) against the bottom plate (3) of the panel (1) to be welded; The control device, the drive assembly (425) and the first drive source (51) are all electrically connected to the control device.

2. The clamping fixture for welding workpieces according to claim 1, characterized in that: The mounting platform (20) comprises a platform (21), a positioning structure (22) arranged on the platform (21) for positioning the panel (1) to be welded, a fixing plate (24) arranged perpendicular to the platform (21) and located on the circumferential outer side of the positioning structure (22), and a slide (23) arranged on the fixing plate (24) and movable toward and away from the platform (21), the clamping rotating plate (413) being pivotally arranged on the slide (23), the side plate clamping device further comprising a second driving source (426) and a second telescopic rod driven by the second driving source (426), and the slide (23) being connected to the end of the second telescopic rod.

3. The clamping fixture for welding workpieces according to claim 2, characterized in that: The slide table (23) includes a pivot connection (231) and two sliders (232) arranged below the pivot connection (231); a guide rail (241) extending in a direction perpendicular to the table (21) is arranged on the fixed plate (24); the slider (232) is guided and cooperated with the guide rail (241); and the pivot (60) of the clamping rotating plate (413) is pivotally arranged on the pivot connection (231).

4. The clamping fixture for welding workpieces according to claim 1, characterized in that: The pressing rotating plate (413) is provided with a mounting hole (4131), the first driving source (51) is fixed to the mounting hole (4131) via a mounting bracket (4132), and the cable of the first driving source (51) passes downward through the mounting hole (4131).

5. The clamping fixture for welding workpieces according to claim 2, characterized in that: The driving assembly (425) comprises a third driving source (4251) fixedly arranged on the fixing plate (24), a third telescopic rod (4252) which can be telescopically extended in a direction perpendicular to the fixing plate (24), and a pressing head (4253) fixed to the driving end of the third telescopic rod (4252); a first avoidance hole (414) for avoiding the pressing head (4253) is provided on the pressing rotating plate (413); the first avoidance hole (414) is a long hole; and the pressing head (4253) has a crimping surface (4254) for pressing the pressing rotating plate (413) downward.

6. The clamping fixture for welding workpieces according to claim 5, characterized in that: The slide (23) includes a mounting plate (233) and a pivot connection (231) and a slider (232) arranged on the upper and lower sides of the mounting plate (233); a guide rail (241) extending in a direction perpendicular to the platform (21) is arranged on the fixed plate (24); the slider (232) is guided and cooperated with the guide rail (241); the pivot (60) of the clamping rotating plate (413) is pivotally arranged on the pivot connection (231); and the third driving source (4251) is arranged on the mounting plate (233).

7. The clamping fixture for welding workpieces according to claim 2, wherein a middle hole (4) is provided on the bottom plate (3) of the panel (1) to be welded, characterized in that: A second avoidance hole (211) corresponding to the middle hole (4) is provided in the middle of the platform (21), and the clamping tool further comprises: The second bottom plate clamping device comprises a fourth driving source (421) arranged on the lower surface of the table (21), a fourth telescopic rod extending outward from the second avoidance hole (211) and driven by the fourth driving source (421), a connecting plate (411) connected to the fourth telescopic rod, and a second clamping head (412) arranged on the connecting plate (411), wherein the second clamping head (412) has a third pressing surface for pressing the workpiece (2) against the bottom plate (3) of the panel (1) to be welded.

8. The clamping fixture for welding workpieces according to claim 7, characterized in that: The second bottom plate clamping device also includes a fifth driving source (423) arranged on the lower surface of the platform (21) and a fifth telescopic rod that is telescopic along the length direction of the second avoidance hole (211), and the fourth driving source (421) is drivingly connected to the driving end of the fifth telescopic rod.

9. The clamping fixture for welding workpieces according to claim 1, characterized in that: The panel pressing device (30) comprises a rotary pressing cylinder (31) and a third pressing head (32), wherein the driving shaft of the rotary pressing cylinder (31) drives the third pressing head (32) to move and rotate, and the third pressing head (32) has a fourth abutting surface abutting against the panel (1) to be welded.

10. A welding tool for welding a workpiece, comprising: A clamping tool, characterized in that the clamping tool is the clamping tool according to any one of claims 1 to 9; The welding robot is arranged on one side of the clamping tool.

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