Welding clamping device and welding tooling system having it

Abstract

This utility model discloses a welding clamping device and a welding fixture system having the same. Specifically, the welding clamping device includes: a driving mechanism, clamping components, and a monitoring device. Two driving mechanisms are provided, arranged opposite to each other. Two clamping components are provided, each connected to one of the driving mechanisms. A welding area is formed between the two clamping components. Each driving mechanism can drive at least one clamping component to be moved, so that the two clamping components have a clamping position for holding the workpiece to be welded and a release position for releasing the workpiece. The monitoring device is located above the welding area and is movably arranged relative to the welding area to acquire positional information between the workpiece to be welded and the clamping components. This utility model solves the technical problem in the prior art of lacking effective monitoring and control of the gap and misalignment between the clamping components and the clamped workpiece, thus causing welding defects due to improper clamping.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and more specifically, to a welding clamping device and a welding fixture system having the same. Background Technology

[0002] Laser welding is a high-precision welding technology that uses a high-energy-density laser beam as a heat source to locally heat materials to a melting or vaporizing state, thereby achieving material connection. Currently, laser welding is increasingly used in automotive electronics. Typically, laser-welded components consist of a clamping part and a clamped part. The key is that the two parts must be in a good fit during welding; otherwise, poor welding is very likely to occur, leading to product scrap.

[0003] Most existing technologies use force sensors to monitor whether the welding copper busbars are clamped, but they do not have displacement monitoring capabilities. This can easily lead to situations where the welding copper busbars cannot be clamped or are over-pressurized, resulting in abnormal problems during the welding process.

[0004] There is currently no effective solution to the above problems. Utility Model Content

[0005] This utility model provides a welding clamping device and a welding fixture system having the same, to at least solve the technical problem in the prior art of lacking effective monitoring and control of the gap and misalignment between the clamping part and the clamped part, thereby causing poor welding due to improper clamping.

[0006] According to one aspect of the present invention, a welding clamping device is provided, comprising: two driving mechanisms arranged opposite to each other; two clamping components arranged opposite to each other, each clamping component connected to one of the driving mechanisms, forming a welding area between the two clamping components, each driving mechanism capable of driving at least one clamping component to be movably arranged so that the two clamping components have a clamping position for clamping a workpiece to be welded and a release position for releasing the workpiece to be welded; and a monitoring device arranged above the welding area and movably arranged relative to the welding area, the monitoring device being used to acquire positional information between the workpiece to be welded and the clamping components.

[0007] Furthermore, at least one clamping assembly includes: a pressure head for clamping the workpiece to be welded; a sliding member, at least a portion of which is disposed between the pressure head and the drive mechanism, the pressure head being connected to the drive mechanism via the sliding member; and a slide rail located below the sliding member, the sliding member being movably connected to the slide rail; wherein the drive mechanism drives the sliding member to move along the slide rail path, so that the sliding member drives the pressure head to a clamping position and a release position.

[0008] Furthermore, each clamping assembly includes a pressure head, and a welding area is formed between two pressure heads that are positioned opposite each other.

[0009] Furthermore, the sliding member includes: a first component segment, one end of which is connected to the drive mechanism, and the other end of which extends downward in a vertical direction; and a second component segment, one end of which is connected to the first component segment and is disposed at a first included angle, and the other end of which extends toward the bottom of the drive mechanism, wherein the bottom of the second component segment is movably connected to the slide rail.

[0010] Furthermore, the first and second components are integrally formed.

[0011] Furthermore, the pressure head includes: a vertical section connected to the first component section, the top of the vertical section protruding from the top of the first component section; and a horizontal section, one end of which is connected to the bottom end of the vertical section and is arranged at a second included angle, the other end of which extends away from the sliding member; wherein, when the pressure head is in the clamping position, the horizontal section abuts against the workpiece to be welded, and when the pressure head is in the release position, the horizontal section disengages from the workpiece to be welded.

[0012] Furthermore, each drive mechanism is controlled independently.

[0013] Furthermore, one or more pressure heads are provided in the clamping assembly.

[0014] According to another aspect of the present invention, a welding fixture system is also provided, including a welding clamping device, wherein the welding clamping device is the welding clamping device of any one of the claims.

[0015] Furthermore, the welding fixture system includes a control system, which includes: a PLC controller, the drive mechanism being electrically connected to the PLC controller; a force sensor, which is located between the pressure head and the drive mechanism, and is used to detect the magnitude of the clamping force between the pressure head and the workpiece to be welded; and a data processing module, which is electrically connected to the monitoring equipment, and is used to obtain the gap value and misalignment value between the pressure head and the workpiece to be welded.

[0016] In this embodiment of the invention, a monitoring device monitors the position and gap between the workpiece to be welded and the clamping assembly, providing real-time feedback to the drive mechanism. The drive mechanism then drives the clamping assembly to press or release the workpiece to be welded, precisely controlling the clamping force. This reduces the need for manual operation and improves the automation level of the welding process. Furthermore, it solves the technical problem in the prior art of lacking effective monitoring and control of the gap and misalignment between the clamping component and the clamped workpiece, which leads to poor welding due to improper clamping. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a structural schematic diagram of the first embodiment of the welding clamping device according to the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the second embodiment of the welding clamping device according to the present utility model;

[0020] Figure 3 This is a structural schematic diagram of the third embodiment of the welding clamping device according to the present invention.

[0021] The above figures include the following reference numerals:

[0022] 1. Monitoring equipment;

[0023] 2. Drive mechanism;

[0024] 3. Clamping assembly;

[0025] 31. Pressure head;

[0026] 311. Vertical segment;

[0027] 312. Horizontal section;

[0028] 32. Sliding component;

[0029] 321. First section;

[0030] 322. The second section;

[0031] 33. Slide rail;

[0032] 4. Parts to be welded. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0036] Combination Figures 1 to 3 As shown, according to a specific embodiment of this application, a welding clamping device is provided.

[0037] Specifically, such as Figure 1 As shown, the welding clamping device includes: a drive mechanism 2, a clamping assembly 3, and a monitoring device 1. Two drive mechanisms 2 are provided, arranged opposite to each other. Two clamping assemblies 3 are also provided, each connected to one drive mechanism 2. The two clamping assemblies 3 are arranged opposite to each other, forming a welding area between them. Each drive mechanism 2 can drive at least one clamping assembly 3 to move, so that the two clamping assemblies 3 have a clamping position for holding the workpiece 4 to be welded, and a release position for releasing the workpiece 4 to be welded. The monitoring device 1 is positioned above the welding area and is movably arranged relative to the welding area. The monitoring device 1 is used to acquire positional information between the workpiece 4 to be welded and the clamping assembly 3.

[0038] In this embodiment of the invention, the monitoring device 1 monitors the positional information between the workpiece 4 to be welded and the clamping assembly 3, providing real-time feedback to the drive mechanism 2. The drive mechanism 2 drives the clamping assembly 3 to clamp or release the workpiece 4, precisely controlling the clamping force, reducing the need for manual operation, and improving the automation level of the welding process. This solves the technical problem in the prior art of lacking effective monitoring and control of the gap and misalignment between the clamping component and the clamped workpiece, which leads to poor welding due to improper clamping.

[0039] It should be further explained that, in this embodiment, the monitoring device 1 can be configured as a camera, radar sensor, infrared sensor, laser scanner, or other components that can detect the gap and misalignment between the pressure head and the workpiece to be welded, and the selection should be based on factors such as accuracy, cost, and environmental adaptability.

[0040] Optionally, such as Figure 3 As shown, at least one clamping assembly 3 includes: a pressure head 31, a sliding member 32, and a slide rail 33. The pressure head 31 is used to clamp the workpiece 4 to be welded. At least a portion of the sliding member 32 is disposed between the pressure head 31 and the drive mechanism 2, and the pressure head 31 is connected to the drive mechanism 2 through the sliding member 32. The slide rail 33 is located below the sliding member 32, and the sliding member 32 is movably connected to the slide rail 33. The drive mechanism 2 drives the sliding member 32 to move along the path of the slide rail 33, so that the sliding member 32 drives the pressure head 31 to be in the clamping position and the release position.

[0041] The cooperation between the sliding member 32 and the slide rail 33 enables precise movement of the pressure head 31. Based on mechanical transmission theory, through the power input of the drive mechanism 2, the sliding member 32 moves smoothly on the slide rail 33, thereby driving the pressure head 31 to the designated clamping or releasing position. This allows for stable and rapid clamping and releasing of the workpiece 4 to be welded, avoiding errors caused by manual operation and improving the automation level of the welding operation.

[0042] Optionally, each clamping assembly 3 includes a pressure head 31, and a welding area is formed between two oppositely arranged pressure heads 31. The symmetrical arrangement of the two pressure heads ensures uniform clamping of the workpiece to be welded, avoiding deformation or displacement that may be caused by clamping on one side, thereby ensuring the stability of the workpiece during the welding process.

[0043] Optionally, each pressure head 31 is driven by a drive mechanism 2, allowing for independent adjustment of its position and clamping force. This design allows the device to adapt to workpieces 4 of different sizes and shapes, improving the equipment's versatility and production flexibility.

[0044] Optionally, the slider 32 includes: a first component segment 321 and a second component segment 322. One end of the first component segment 321 is connected to the drive mechanism 2, and the other end of the first component segment 321 extends downward in a vertical direction. One end of the second component segment 322 is connected to the first component segment 321 and is arranged at a first included angle. The other end of the second component segment 322 extends toward the bottom of the drive mechanism 2. The bottom of the second component segment 322 is movably connected to the slide rail 33.

[0045] One end of the first segment 321 is connected to the drive mechanism 2. In this embodiment, the drive mechanism 2 is an electric cylinder mechanism. One end of the first segment 321 receives the linear driving force from the electric cylinder, and the other end of the first segment 321 extends downward in a vertical direction. This means that it transmits the force directly and vertically downward to the second segment 322. The second segment 322 is connected to one end of the first segment 321 at a certain angle, forming an L-shaped structure. The bottom of the second segment 322 is movably connected to the slide rail 33, which means that it can move along the slide rail. The first segment transmits the driving force to cause the second segment to produce horizontal displacement. In this embodiment, the slide rail 33 can be fixed to the base plate or the worktable by screws.

[0046] Optionally, the first segment 321 and the second segment 322 are integrally molded. This integral molding design enhances the overall strength and durability of the sliding component 32. The integral molding reduces the risk of wear and loosening at the connection points, ensuring structural stability during long-term operation.

[0047] Optionally, the pressure head 31 includes a vertical section 311 and a horizontal section 312. The vertical section 311 is connected to the first component section 321, and the top of the vertical section 311 protrudes beyond the top of the first component section 321. One end of the horizontal section 312 is connected to the bottom end of the vertical section 311 and is arranged at a second included angle, while the other end of the horizontal section 312 extends away from the sliding member 32. When the pressure head 31 is in the clamping position, the horizontal section abuts against the workpiece 4 to be welded; when the pressure head 31 is in the release position, the horizontal section 312 disengages from the workpiece 4 to be welded. The combination of the vertical section 311 and the horizontal section 312 constitutes the unique shape of the pressure head 31, which can adapt to workpieces 4 of different shapes and sizes to be welded, ensuring effective contact during clamping and improving the clamping effect.

[0048] like Figure 2As shown, the vertical section 311 is connected to the first component section 321, with the top of the vertical section protruding beyond the top of the first component section. This design allows the pressure head to effectively act vertically on the workpiece 4 from above, ensuring that the clamping force is transmitted along the vertical direction and avoiding workpiece displacement caused by lateral forces. One end of the horizontal section 312 forms an angle (second included angle) with the bottom end of the vertical section 311, while the other end extends away from the sliding member 32. The horizontal section is designed to make contact with the surface of the workpiece, especially when the pressure head 31 is in the clamping position. The horizontal section 312 can abut against the workpiece, providing additional support and guidance to ensure the stability and alignment of the workpiece under clamping conditions. When the pressure head is in the release position, the horizontal section 312 disengages from the workpiece, facilitating the placement and removal of the workpiece.

[0049] The switching between the pressure head's release and clamping positions simplifies the workpiece loading process before welding and the unloading process after welding, improving operational efficiency and reducing production downtime.

[0050] Optionally, each drive mechanism 2 is controlled independently. The independent control design of the drive mechanism 2 allows the device to flexibly adjust the clamping force and position according to the specific conditions of the workpiece 4 to be welded.

[0051] Each drive mechanism 2 independently controls its corresponding pressure head 31, enabling independent adjustment of its position and clamping force. This allows for more precise clamping control, ensuring that the clamping state on each side meets specific requirements. Independent drive control increases the flexibility of the device, allowing adjustment of the pressure and position of both pressure heads according to the size and shape of different welded parts. Depending on the shape and processing requirements of the workpiece to be welded, a single drive mechanism 2 can be driven independently, or both drive mechanisms can operate synchronously. If one drive mechanism 2 fails, the independent control design ensures that other drive mechanisms can continue to operate normally, without affecting the processing of other welded parts, reducing the risk of the production line completely shutting down due to a single failure.

[0052] Optionally, one or more pressure heads 31 may be provided in the clamping assembly 3. Variations in the number of pressure heads 31 in the clamping assembly 3 provide different clamping strategies to accommodate different types of welding operations. A single pressure head 31 is suitable for simple, regularly shaped workpieces 4 to be welded, while multiple pressure heads 31 can better handle complex, irregularly shaped workpieces, ensuring their stability and uniform force distribution during the welding process.

[0053] In this embodiment, the pressure head 31 is an L-shaped metal structure, and the structure of the pressure head can be improved according to actual processing requirements.

[0054] It should be further explained that, in this embodiment, the drive mechanism 2 adopts an electric cylinder mechanism. The electric cylinder includes a motor and a linear actuator (which can be a lead screw). The rotational motion of the motor is transmitted to the lead screw through a reduction mechanism, causing the lead screw to rotate. The thread on the lead screw engages with the nut inside the electric cylinder. When the lead screw rotates, the nut moves along the axial direction of the lead screw, thereby converting the rotational motion into linear motion. This design of the electric cylinder allows for precise control of the displacement of the connected pressure head by controlling the rotation angle of the motor, enabling fine-tuning of the clamping force and position between the clamping member and the clamped member.

[0055] Embodiments of this application also provide a welding fixture system, including a welding clamping device, wherein the welding clamping device is any of the welding clamping devices described in the above embodiments.

[0056] Optionally, the welding fixture system includes a control system, which comprises a PLC controller, a force sensor, and a data processing module. The drive mechanism 2 is electrically connected to the PLC controller. The force sensor is positioned between the pressure head 31 and the drive mechanism 2 to detect the clamping force between the pressure head 31 and the workpiece 4 to be welded. The monitoring device 1 is electrically connected to the data processing module, which is used to acquire the gap and misalignment values ​​between the pressure head 31 and the workpiece 4 to be welded. The introduction of the control system enables the welding fixture system to achieve intelligent operation and management. The PLC controller, as the core, receives data from the force sensor and the monitoring device 1 and adjusts the output of the drive mechanism 2 in real time to ensure appropriate clamping force and accurate positioning.

[0057] In this embodiment, before welding, the monitoring device 1 located above the welding area takes pictures of the workpiece 4 to be welded, which is placed between the clamping components. The monitoring device is electrically connected to the data processing module. Through the images captured by the monitoring device, the data processing module can analyze and calculate the gap and misalignment values ​​between the pressure head and the workpiece to be welded, and convert the processed information into the displacement of the drive mechanism. The drive mechanism, in turn, executes commands from the PLC controller to drive the clamping components to perform the clamping operation. A force sensor is provided between the pressure head 31 and the drive mechanism 2. When the pressure head 31 begins to apply clamping force to the workpiece 4 to be welded, the force sensor monitors the magnitude of the clamping force between the pressure head 31 and the workpiece 4 in real time. The force sensor is electrically connected to the PLC controller and sends the detected clamping force data to the PLC controller in real time. Monitoring device 1 monitors the gap and misalignment between the pressure head 31 and the workpiece 4 to be welded in real time. Under the command of the PLC controller, the drive mechanism 2 precisely adjusts the stroke of the electric cylinder based on the clamping force feedback from the force sensor and the gap and misalignment values ​​calculated by the data processing module. This controls the movement distance and clamping force of the pressure head, ensuring an ideal clamping state between the pressure head and the workpiece. Once the clamping state meets the set conditions, the welding equipment begins welding. During the welding process, the control system continues to monitor the clamping state to ensure continuous stability and welding quality.

[0058] By using a force sensor to provide real-time feedback on the clamping force, and a data processing module to calculate the gap and misalignment values, combined with closed-loop control by a PLC controller, precise control of the clamping process is achieved, avoiding the problems of uneven clamping force and inaccurate clamping position that can occur with traditional manual clamping. The integration of the monitoring equipment and the data processing module enables automatic detection of positional accuracy before welding, reducing manual intervention and improving production efficiency. Precise clamping force and positional accuracy control significantly improves the stability and fit of the welded parts during the welding process, thereby enhancing welding quality and consistency, and reducing product defects and scrap rates caused by poor clamping.

[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0061] In the above embodiments of this utility model, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0062] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welding clamping device, characterized in that, include: The driving mechanism (2) is provided in two parts, and the two driving mechanisms (2) are arranged opposite to each other; Clamping assembly (3), two clamping assemblies (3) are provided, each clamping assembly (3) is connected to one of the driving mechanisms (2), the two clamping assemblies (3) are arranged opposite to each other, and a welding area is formed between the two clamping assemblies (3). Each driving mechanism (2) can drive at least one clamping assembly (3) to be moved so that the two clamping assemblies (3) have a clamping position for clamping the workpiece (4) to be welded, and the two clamping assemblies (3) have a release position for releasing the workpiece (4) to be welded; A monitoring device (1) is disposed above the welding area and is movably disposed relative to the welding area. The monitoring device (1) is used to obtain position information between the workpiece to be welded (4) and the clamping assembly (3).

2. The welding clamping device according to claim 1, characterized in that, At least one of the clamping components (3) includes: A pressure head (31) is used to clamp the workpiece (4) to be welded; A slider (32), at least a portion of which is disposed between the pressure head (31) and the drive mechanism (2), wherein the pressure head (31) is connected to the drive mechanism (2) via the slider (32); A slide rail (33) is located below the slider (32), and the slider (32) is movably connected to the slide rail (33); The driving mechanism (2) drives the slider (32) to move along the slide rail (33) so that the slider (32) drives the pressure head (31) to be in the clamping position and the release position.

3. The welding clamping device according to claim 2, characterized in that, Each of the clamping components (3) includes a pressure head (31), and the welding area is formed between two oppositely arranged pressure heads (31).

4. The welding clamping device according to claim 2, characterized in that, The slider (32) includes: The first component segment (321) has one end connected to the drive mechanism (2) and the other end of the first component segment (321) extends downward in the vertical direction. The second component segment (322) has one end connected to the first component segment (321) and set at a first included angle, and the other end of the second component segment (322) extends toward the bottom of the drive mechanism (2), wherein the bottom of the second component segment (322) is movably connected to the slide rail (33).

5. The welding clamping device according to claim 4, characterized in that, The first component segment (321) and the second component segment (322) are integrally formed.

6. The welding clamping device according to claim 4, characterized in that, The pressure head (31) includes: A vertical segment (311) is connected to the first component segment (321), and the top of the vertical segment (311) protrudes from the top of the first component segment (321). A horizontal segment (312), one end of which is connected to the bottom end of the vertical segment (311) and is set at a second included angle, and the other end of which extends away from the slider (32); When the pressure head (31) is in the clamping position, the horizontal section (312) abuts against the workpiece (4) to be welded; when the pressure head (31) is in the release position, the horizontal section (312) disengages from the workpiece (4) to be welded.

7. The welding clamping device according to claim 1, characterized in that, Each of the drive mechanisms (2) is controlled independently.

8. The welding clamping device according to claim 3, characterized in that, One or more pressure heads (31) are provided in the clamping assembly (3).

9. A welding fixture system, comprising a welding clamping device, characterized in that, The welding clamping device is the welding clamping device according to any one of claims 1 to 8.

10. The welding fixture system according to claim 9, characterized in that, The welding fixture system includes a control system, which includes: The PLC controller and the drive mechanism (2) are electrically connected to the PLC controller; A force sensor is disposed between the pressure head (31) and the drive mechanism (2) to detect the magnitude of the clamping force between the pressure head (31) and the workpiece to be welded (4); The data processing module is electrically connected to the monitoring device (1). The data processing module is used to obtain the gap value and misalignment value between the pressure head (31) and the workpiece to be welded (4).

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