Riveting tool and riveting machine

Abstract

The utility model discloses a riveting tool and a riveting machine. The riveting tool comprises an upper die assembly and a lower die assembly. The lower die assembly comprises a base and a sliding piece installed on the base in a sliding mode, the sliding piece comprises a sliding part in sliding fit with the base and a riveting part arranged on the sliding part in a protruding mode, the riveting part is provided with at least two notches formed in the X-axis direction at intervals, the notches are used for containing studs, and the studs are arranged in the notches. A first positioning groove for placing the copper bar is formed in the top surface of the sliding part, a first positioning piece is further arranged in the first positioning groove, and the first positioning piece is used for limiting the position of the copper bar in the X-axis direction, so that the position, needing to be riveted, of the copper bar corresponds to the notch; and the upper die assembly is movably arranged above the stud. Riveting is carried out after the copper bar is fixed, the potential safety hazard that the hands of an operator are pressed during operation is avoided, meanwhile, continuous riveting can be carried out, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of riveting fixtures, and more particularly to a riveting machine. Background Technology

[0002] In the field of riveting technology, riveting machines achieve part connection by applying pressure to plastically deform the riveted parts. The process requires that the thread concentricity meet standards after riveting, that the riveted surface has no obvious deformation or indentation, and that the push-pull force and torque standards be met. However, traditional riveting methods have significant drawbacks: firstly, operators must manually hold the workpiece during riveting, and if their attention is distracted, their hands are easily pinched by the downward pressure of the equipment, posing a safety hazard; secondly, manually holding the workpiece can easily cause unstable positioning, leading to stud misalignment, poor contact between the end face and the substrate during riveting, and quality defects such as misalignment, gaps, or displacement. Furthermore, existing tooling can only rivet a single stud in a single operation. For multi-stud workpieces, repeated positioning operations are required, which is not only inefficient but also exacerbates the product defect rate due to the cumulative positioning errors, making it difficult to meet the combined requirements of precision and efficiency in industrial production. Utility Model Content

[0003] The purpose of this application is to provide a riveting fixture and a riveting machine to solve the technical problems of the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a riveting fixture is provided, comprising: an upper die assembly and a lower die assembly; the lower die assembly includes a base and a sliding member slidably mounted on the base, the sliding member including a sliding part that slidably engages with the base and a riveting part protruding from the sliding part, the riveting part having at least two slots spaced apart along the X-axis, the slots being used to place studs, the top surface of the sliding part having a first positioning groove for placing the copper busbar, the first positioning groove also having a first positioning member, the first positioning member being used to limit the position of the copper busbar in the X-axis direction so that the position of the copper busbar to be riveted corresponds to the slot; the upper die assembly is movably disposed above the stud for riveting the stud to the copper busbar.

[0006] Furthermore, a second positioning member is provided on the side of the sliding part, which is used to limit the position of the copper busbar in the Y-axis direction.

[0007] Furthermore, the base is provided with a slide rail groove along the X-axis direction, the cross-section of the slide rail groove is inverted T-shaped, and the bottom shape of the sliding part corresponds to the slide rail groove.

[0008] Furthermore, limiters are provided at both ends of the slide rail groove.

[0009] Furthermore, the top surface of the riveting part is provided with a second positioning groove located on the outer periphery of the groove.

[0010] Furthermore, both the first positioning groove and the second positioning groove are square in shape.

[0011] On the other hand, a riveting machine is also provided, including the riveting fixtures as described above.

[0012] Furthermore, it also includes a fixing head and a fixing base, wherein the upper mold assembly is mounted to the fixing head by fasteners, and the base is mounted to the fixing base by fasteners.

[0013] Furthermore, the fixed base is provided with a positioning hole, and the base is provided with a positioning post that cooperates with the positioning hole for positioning. After the positioning post is inserted into the positioning hole, it is locked by the fastener.

[0014] Furthermore, it also includes a first driving component and a second driving component. The power end of the first driving component is connected to the upper mold component and is used to drive the upper mold component to move along the Z-axis direction. The power end of the second driving component is connected to the sliding part and is used to drive the sliding part to move along the X-axis direction.

[0015] The beneficial effects of this application are as follows: Through the synergistic action of the double stud slots and the sliding device, the riveting of two studs is completed in steps after a single clamping of the copper busbar. This avoids the safety hazards of manually handling the workpiece and significantly reduces the repetitive positioning time required for traditional single-stud riveting, thus improving the continuity of operations. The precise movement of the sliding device ensures the concentricity of the riveting positions of the two studs, avoiding defects such as skewing and gaps, and ensuring quality stability. At the same time, the dual-station step-by-step riveting design balances efficiency and equipment cost, and is especially suitable for the rapid processing of multi-stud workpieces. It significantly improves efficiency compared to traditional single-stud riveting, and has a simple, reliable structure with strong adaptability. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 The three-dimensional riveting fixture described in the embodiments of this application Figure 1 ;

[0018] Figure 2 The three-dimensional riveting fixture described in the embodiments of this application Figure 2 ;

[0019] Figure 3 This is an exploded view (including copper busbars and studs) of the lower mold assembly described in the embodiments of this application;

[0020] Figure 4This is a perspective view of the slider described in the embodiment of this application;

[0021] Figure 5 This is a perspective view of the base described in the embodiment of this application;

[0022] Figure 6 This is an assembly diagram of the upper mold assembly and the fixing head described in the embodiments of this application;

[0023] Figure 7 This is an assembly diagram of the lower mold assembly and the fixed base described in the embodiments of this application.

[0024] In the diagram: 1. Upper mold assembly; 2. Lower mold assembly; 201. Base; 202. Sliding component; 203. First positioning component; 204. Second positioning component; 205. Limiting component; 2011. Slide rail groove; 2012. Positioning pin; 2021. Sliding part; 2022. Riveting part; 2023. First positioning groove; 2024. Groove; 2025. Second positioning groove; 3. Copper busbar; 4. Stud; 5. Fixing head; 6. Fixing base; 7. Fastener. Detailed Implementation

[0025] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figures 1 to 5 As shown, this embodiment provides a riveting fixture, including: an upper die assembly 1 and a lower die assembly 2; the lower die assembly 2 includes a base 201 and a sliding member 202 slidably mounted on the base 201. The sliding member 202 includes a sliding part 2021 that slidably engages with the base 201 and a riveting part 2022 protruding from the sliding part 2021. The riveting part 2022 is provided with at least two slots 2024 spaced apart along the X-axis direction. The slots 2024 are used to place studs 4. The top surface of the sliding part 2021 is provided with a first positioning groove 2023 for placing the copper busbar 3. A first positioning member 203 is also provided in the first positioning groove 2023. The first positioning member 203 is used to limit the position of the copper busbar 3 in the X-axis direction so that the position where the copper busbar 3 needs to be riveted corresponds to the slot 2024; the upper die assembly 1 is movably disposed above the stud 4 and is used to rivet the stud 4 to the copper busbar 3.

[0029] Based on the above scheme, the riveting fixture achieves precise fixing of the copper busbar 3 through the synergistic effect of the first positioning groove 2023 and the first positioning element 203. During operation, the copper busbar 3 is placed in the first positioning groove 2023 of the sliding part 2021. The first positioning element 203 mechanically limits the movement of the copper busbar 3 in the X-axis direction, ensuring that its riveting point always strictly corresponds to the initial position of the two pre-set stud 4 slots in the lower die assembly 2. After the upper die assembly 1 presses down to complete the riveting of the first stud 4, the sliding element 202 slides along the base 201, causing the second stud 4 slot to automatically move to the next riveting center position of the copper busbar 3. Since the copper busbar 3 has been completely fixed by the first positioning groove 2023 and the first positioning element 203, the position of the copper busbar 3 remains unchanged during the sliding process, and only the sliding element 202 moves, thereby ensuring the alignment accuracy of the second stud 4 slot with the riveting point of the copper busbar 3. The upper die assembly 1 can complete the continuous riveting by pressing down again, realizing efficient operation of single clamping and step-by-step riveting.

[0030] In this design, the combination of the first positioning groove 2023 and the first positioning component 203 completely eliminates the need for manual adjustment of the copper busbar 3's position. Mechanical limiting ensures the absolute fixation of the copper busbar 3 in the X-axis direction, preventing offset caused by the movement of the sliding component 202 or external interference. This guarantees that the riveting points of both studs 4 are precisely aligned with the groove 2024, significantly improving concentricity and riveting quality. Simultaneously, the combination of the sliding device and the double stud 4 groove allows for continuous riveting of the two studs 4 in stages after the copper busbar 3 is clamped once, through the sliding switching position of the lower mold assembly 2. This reduces the time-consuming operations of repeatedly disassembling and positioning workpieces in traditional processes and avoids the safety hazards of manually handling the workpiece. Furthermore, the structural design of the first positioning groove 2023 ensures uniform force distribution on the copper busbar 3, resulting in no deformation or indentations after riveting, further guaranteeing the product's flatness and surface quality, meeting the requirements of high-precision industrial production.

[0031] Preferably, a second positioning member 204 is further provided on the side of the sliding part 2021. The second positioning member 204 is used to limit the position of the copper busbar 3 in the Y-axis direction. The second positioning member 204 is provided on the side of the sliding part 2021 and applies constraint to the copper busbar 3 in the Y-axis direction through mechanical limiting or clamping structure. When the copper busbar 3 is placed in the first positioning groove 2023, the second positioning member 204 abuts against the edge of the copper busbar 3 from the side, forming an XY two-dimensional positioning system together with the first positioning groove 2023 and the first positioning member 203 to ensure the absolute fixation of the copper busbar 3 in the plane. When the sliding member 202 moves to switch positions, the second positioning member 204 continuously restricts the lateral displacement of the copper busbar 3 to avoid Y-axis direction deviation caused by sliding friction or inertia, thereby ensuring that the alignment accuracy of the second stud 4 groove and the riveting point of the copper busbar 3 is not affected by the sliding process, and realizing the consistency of the riveting position after the dual-position switching.

[0032] Furthermore, the base 201 is provided with a slide rail groove 2011 along the X-axis direction. The cross-section of the slide rail groove 2011 is inverted T-shaped, and the bottom shape of the sliding part 2021 corresponds to the slide rail groove 2011. The matching design of the inverted T-shaped slide rail groove 2011 and the sliding part 2021 significantly enhances the guiding accuracy and load-bearing capacity of the sliding part 202. Its rigid constraint characteristics can resist the riveting impact force, prevent shaking or jamming during sliding, and ensure the repeatability of the positioning accuracy of the stud 4 slot 2024 and the copper busbar 3 riveting point after the dual-station switching, further improving the riveting consistency. In addition, the self-locking characteristic of the inverted T-shaped structure can reduce the risk of accidental derailment of the sliding part 202 and extend the service life of the tooling; its standardized groove design can also be adapted to different specifications of sliding modules, which is convenient for expansion or replacement, enhancing the modularity and maintainability of the tooling system and providing reliable support for continuous and efficient production.

[0033] Furthermore, both ends of the slide rail groove 2011 are provided with limiting members 205. The limiting members 205 at both ends of the slide rail groove 2011 constrain the movement stroke of the sliding part 2021 through rigid blocking. When the sliding part 202 slides along the slide rail groove 2011 to switch positions, its inverted T-shaped structure at the bottom stops moving after contacting the limiting member 205, ensuring that the sliding part 2021 switches precisely only between the two preset riveting positions. The installation position of the limiting member 205 strictly corresponds to the design spacing of the two studs 4 on the copper busbar 3, so that when the sliding part 202 moves to either end, the slot of the stud 4 can automatically align with the target riveting center of the copper busbar 3, avoiding positioning deviations caused by overtravel or insufficient displacement, and preventing the sliding part 202 from accidentally falling out of the slide rail groove 2011, causing equipment damage or safety hazards.

[0034] In some embodiments, the top surface of the riveting part 2022 is provided with a second positioning groove 2025 located on the outer periphery of the slot 2024. The second positioning groove 2025 is provided on the top surface of the riveting part 2022, and its outline shape matches the structure of the copper busbar 3. When one part of the copper busbar 3 is placed in the first positioning groove 2023 of the sliding part 2021, the other part of the copper busbar 3 is simultaneously embedded in the second positioning groove 2025 of the riveting part 2022. The groove wall constrains the rotational freedom of the copper busbar 3 in the horizontal plane, and works in conjunction with the first positioning groove 2023, the first positioning member 203 and the second positioning member 204 on the side to form an all-round positioning system for the copper busbar 3. This design utilizes the fit between the shape of the copper busbar 3 and the second positioning groove 2025 to further limit its slight displacement or torsion during the riveting process, ensuring that the contact surface between the copper busbar 3 and the stud 4 is always in a preset planar position during riveting, avoiding uneven distribution of riveting force or tilting of the stud 4 due to the offset of the copper busbar 3.

[0035] Furthermore, both the first positioning groove 2023 and the second positioning groove 2025 are square in shape. The square double positioning groove design, through mechanical limiting of the right-angled edges, greatly improves the positioning and anti-rotation capability of the copper busbar 3, especially suitable for rectangular or right-angled copper busbars 3, and can completely eliminate the risk of deflection of the copper busbar 3 due to torsional load or asymmetrical force during riveting. The standardized square groove structure simplifies the processing technology, reduces customization costs, and at the same time, by adjusting the internal dimensions of the groove to adapt to different specifications of copper busbars 3, quick changeover can be achieved simply by replacing or adjusting the positioning components. In addition, the symmetrical characteristics of the square groove allow for accurate positioning of the copper busbar 3 whether placed upright or in reverse, reducing operational complexity; its edge fitting design also disperses the riveting impact force, reduces local wear of the groove body, and extends the service life of the tooling, making it particularly suitable for high-intensity continuous operation scenarios.

[0036] On the other hand, such as Figure 6 and Figure 7As shown, a riveting machine is also provided, including the riveting fixture, fixed head 5, and fixed base 6 as described above. The upper die assembly 1 is mounted on the fixed head 5 by fasteners 7, and the base 201 is mounted on the fixed base 6 by fasteners 7. The riveting machine uses the fixed head 5 and fixed base 6 as mounting bases for the upper die assembly 1 and the lower die assembly 2, respectively. The upper die assembly 1 is rigidly connected to the fixed head 5 by fasteners 7 (such as bolts), and the base 201 is anchored to the fixed base 6 by fasteners 7, forming a stable upper and lower die pressing structure. During operation, the fixed head 5 is pressed vertically downward under the action of a driving device (such as a hydraulic cylinder or servo motor), driving the upper die assembly 1 to apply precise pressure to the stud 4; the fixed base 6 serves as an overall support platform, and through the sliding cooperation between the base 201 and the sliding member 202, it ensures that the lower die assembly 2 maintains horizontal stability when switching positions along the X-axis. The rigid connection of fastener 7 can resist high-frequency impact during the riveting process, prevent the upper mold assembly 1 or base 201 from shifting due to vibration, and ensure the verticality and repeatability of the riveting action.

[0037] Meanwhile, the fixed base 6 is provided with positioning holes, and the base 201 is provided with positioning pins 2012 that cooperate with the positioning holes for positioning. After the positioning pins 2012 are inserted into the positioning holes, they are locked by the fasteners 7. The positioning holes of the fixed base 6 and the positioning pins 2012 of the base 201 adopt a plug-in fit design. During installation, the positioning pins 2012 are first inserted into the positioning holes. The precise clearance fit between the pin and the hole achieves the pre-positioning of the base 201 on the fixed base 6, ensuring that the installation position of the base 201 in the X-Y plane is strictly aligned with the reference plane of the fixed base 6. Subsequently, the base 201 is locked to the fixed base 6 by the fasteners 7 (such as bolts). At this time, the plug-in structure of the positioning pins 2012 and the positioning holes bears the radial shear force, preventing the base 201 from shifting slightly due to vibration or lateral force during the riveting operation. The fasteners 7 provide axial clamping force, forming a double positioning and locking mechanism to ensure the rigid connection between the base 201 and the fixed base 6 and maintain the overall stability of the lower mold assembly 2.

[0038] It is worth mentioning that the system also includes a first drive assembly and a second drive assembly. The power end of the first drive assembly is connected to the upper mold assembly 1, driving the upper mold assembly 1 to move along the Z-axis. The power end of the second drive assembly is connected to the sliding part 2021, driving the sliding part 2021 to move along the X-axis. The first drive assembly drives the upper mold assembly 1 to move vertically along the Z-axis via a power end (such as a servo motor or hydraulic cylinder), precisely controlling the pressing stroke and riveting force to ensure that the deformation process of the stud 4 under pressure is stable and controllable. The second drive assembly drives the sliding part 2021 to move horizontally along the X-axis via a power end (such as a linear motor or cylinder), realizing automated operation of dual-station switching. When the two drive assemblies work together, the upper mold assembly 1 resets after completing one riveting operation, and the second drive assembly then pushes the sliding part 2021 to the next station, while the first drive assembly presses down again to complete continuous riveting. The entire process requires no manual intervention; the timing of the riveting action and station switching is synchronized through programmed control, ensuring processing cycle time and positioning accuracy.

[0039] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A riveting fixture, characterized in that, include: The upper mold assembly (1) and the lower mold assembly (2) are provided. The lower mold assembly (2) includes a base (201) and a sliding member (202) slidably mounted on the base (201). The sliding member (202) includes a sliding part (2021) that slidably engages with the base (201) and a riveting part (2022) protruding from the sliding part (2021). The riveting part (2022) is provided with at least two slots (2024) spaced apart along the X-axis direction. The slots (2024) are used to place studs. 4) The top surface of the sliding part (2021) is provided with a first positioning groove (2023) for placing the copper busbar (3). The first positioning groove (2023) is also provided with a first positioning member (203). The first positioning member (203) is used to limit the position of the copper busbar (3) in the X-axis direction so that the position of the copper busbar (3) to be riveted corresponds to the groove (2024). The upper mold assembly (1) is movably disposed above the stud (4) for riveting the stud (4) to the copper busbar (3).

2. The riveting fixture according to claim 1, characterized in that, The sliding part (2021) is also provided with a second positioning member (204) on its side, which is used to limit the position of the copper busbar (3) in the Y-axis direction.

3. The riveting fixture according to claim 1, characterized in that, The base (201) is provided with a slide rail groove (2011) along the X-axis direction. The cross-section of the slide rail groove (2011) is inverted T-shaped. The bottom shape of the sliding part (2021) corresponds to the slide rail groove (2011).

4. The riveting fixture according to claim 3, characterized in that, Both ends of the slide rail groove (2011) are provided with limit members (205).

5. The riveting fixture according to any one of claims 1-4, characterized in that, The top surface of the riveting part (2022) is provided with a second positioning groove (2025) located on the outer periphery of the slot (2024).

6. The riveting fixture according to claim 5, characterized in that, Both the first positioning groove (2023) and the second positioning groove (2025) are square in shape.

7. A riveting press, characterized in that, Includes the riveting fixture as described in any one of claims 1-6.

8. The riveting machine according to claim 7, characterized in that, It also includes a fixing head (5) and a fixing base (6), wherein the upper mold assembly (1) is mounted on the fixing head (5) by fasteners (7), and the base (201) is mounted on the fixing base (6) by fasteners (7).

9. The riveting machine according to claim 8, characterized in that, The fixed base (6) is provided with a positioning hole, and the base (201) is provided with a positioning post (2012) that cooperates with the positioning hole for positioning. After the positioning post (2012) is inserted into the positioning hole, it is locked by the fastener (7).

10. The riveting machine according to claim 7, characterized in that, It also includes a first driving component and a second driving component. The power end of the first driving component is connected to the upper mold component (1) and is used to drive the upper mold component (1) to move along the Z-axis direction. The power end of the second driving component is connected to the sliding part (2021) and is used to drive the sliding part (2021) to move along the X-axis direction.

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