A spin riveting device

Abstract

The utility model discloses a kind of rotary riveting devices, comprising: rack, transport platform, first limiting piece, rack includes multiple stations being set along first direction, the transport platform is slidably arranged between multiple stations along first direction, the transport platform is provided with limiting hole along second direction;The first limiting piece is movably arranged in the rack along the second direction, the first limiting piece is used to insert the limiting hole to limit the movement of the transport platform along the first direction, the second direction is inclined relative to the first direction.Rotary riveting device is used to solve how to ensure workpiece position accuracy without relying on frequent calibration, to realize the technical problem of accurate rotary riveting of rotary riveting device to rivet position.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a riveting device. Background Technology

[0002] Riveting devices are widely used in manufacturing fields such as sheet metal joining, housing assembly, and battery module packaging. Through the rotation and downward pressure of the rivet head, the rivet is plastically deformed on the workpiece to form a reliable mechanical connection. In existing technologies, to rivet rivets at multiple locations on a workpiece, a moving mechanism is typically used to drive the workpiece between riveting stations, allowing the rivet head to perform riveting operations on each riveting point sequentially. This type of structure can complete multi-point riveting on a single machine, improving production efficiency. However, during long-term operation, the mechanism used to drive the workpiece movement (such as slides, lead screws, servo systems, etc.) is prone to positioning errors due to mechanical wear, increased clearance, or decreased transmission accuracy, causing the workpiece to shift position during riveting. In this case, the rivet head and rivet axis cannot be accurately aligned, which not only causes poor rivet deformation or insufficient riveting strength but may also damage the workpiece surface or the rivet head structure. Existing equipment lacks compensation or correction designs for this positioning deviation, resulting in frequent maintenance and adjustments and poor production stability.

[0003] Therefore, how to ensure the positional accuracy of the workpiece without relying on frequent calibration, and how to achieve accurate riveting of the rivet position by the riveting device, has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] One objective of this invention is to provide a riveting device that aims to solve the technical problem of ensuring workpiece position accuracy without relying on frequent calibration, and to achieve accurate riveting of rivets by the riveting device.

[0005] To achieve the above objectives, the present invention provides a solution: a riveting device, comprising: a frame including multiple workstations arranged along a first direction; A transport platform is slidably disposed between multiple workstations along a first direction, and a limit hole is provided on the transport platform along a second direction. The first limiting member is movable on the frame along the second direction. The first limiting member is used to insert into the limiting hole to restrict the movement of the transport table along the first direction. The second direction is inclined relative to the first direction.

[0006] Optionally, there are multiple limiting holes, which are spaced apart along the first direction, and each limiting hole corresponds to a different work station. The first limiting member is used to insert into the corresponding limiting hole to restrict the movement of the transport table when it moves to one of the multiple workstations.

[0007] Optionally, the transport platform is provided with a guide groove that extends along a first direction; The riveting device includes a second limiting member, which is slidably fitted into the guide groove along the first direction, and is movable on the frame along the second direction, so that the second limiting member can enter and exit the guide groove along the first direction.

[0008] Optionally, the limiting hole and the guide groove are connected, and the second limiting member is used to pass through the guide groove and the limiting hole in sequence.

[0009] Optionally, the riveting device also includes a guide rail, which is disposed on the frame and extends along a first direction, and the transport table is slidably fitted onto the guide rail.

[0010] Optionally, the riveting device further includes a slider and a fastener, the slider being slidably engaged with a guide rail, the transport table being slidably disposed on the slider along a second direction, and the fastener being connected to the slider and the transport table to lock the position of the transport table relative to the slider.

[0011] Optionally, the transport table has a connection hole along the second direction, and a fastener passes through the connection hole and is connected to the slider to lock the transport table and the slider.

[0012] Optionally, a riveting mechanism is provided for riveting the workpiece to be tested; The riveting device includes a protective cover, which is connected to the frame and covers the outside of the transport table. The protective cover has a disassembly port and a clearance port. The disassembly port is opened in the first direction and is used for the transport table to enter or exit the inside of the protective cover. The clearance port is opened in the direction of the riveting mechanism and is used for the riveting mechanism to enter or exit the inside of the protective cover. The transport platform is equipped with baffles corresponding to the disassembly and assembly ports.

[0013] Optionally, the baffle is provided with a handle.

[0014] Optionally, the frame is provided with multiple sensors at intervals along the first direction, and the sensors are configured to detect whether the transport table has moved to the corresponding workstation.

[0015] The beneficial effects of this utility model are as follows: The riveting device includes: a frame, a transport table, and a first limiting member. The frame includes multiple workstations arranged along a first direction. The transport table is slidably arranged between the multiple workstations along the first direction. The transport table is provided with limiting holes along a second direction. The first limiting member is movably arranged on the frame along the second direction. The first limiting member is used to insert into the limiting holes to restrict the movement of the transport table along the first direction. The second direction is inclined relative to the first direction.

[0016] In practical applications, the transport table slides between multiple stations along a first direction to sequentially move workpieces to each station for riveting during the riveting process. When the transport table reaches the target station, a first limiting member inserts into a limiting hole along a second direction, mechanically locking the transport table. Because the second direction is inclined relative to the first direction, the first limiting member generates not only an insertion force along the second direction but also a component force along the first direction during insertion, causing the transport table to automatically and slightly tighten towards the positioning reference direction when the limiting member is inserted. This inclined limiting engagement enables self-correcting positioning of the transport table, ensuring it is pressed to the same reference surface position each time it is locked, thereby eliminating minor positional deviations caused by slide clearance, lead screw wear, or transmission errors. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the riveting device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the riveting device provided in this embodiment of the utility model; Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a schematic diagram of the riveting device provided in this embodiment of the utility model; Figure 5 This is provided by the embodiment of the present utility model. Figure 4 A magnified view of a portion of region B in the middle; Figure 6 This is provided by the embodiment of the present utility model. Figure 4 A magnified view of a portion of region C.

[0019] Explanation of icon numbers: 20. Frame; 30. Transport platform; 31. Limiting hole; 32. Guide groove; 33. Connecting hole; 40. First limiting component; 50. Second limiting component; 60. Guide rail; 70. Slider; 80. Fastener; 90. Riveting mechanism; 100. Protective cover; 101. Disassembly port; 102. Clearance port; 110. Baffle; 120. Handle; 130. Sensor; 140. First direction; 150. Second direction. Detailed Implementation

[0020] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 5 As shown, Figure 1 This is a structural schematic diagram of the riveting device provided in an embodiment of the present invention. Figure 2 This is a structural schematic diagram of the riveting device provided in an embodiment of the present invention. Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle. Figure 4 This is a structural schematic diagram of the riveting device provided in an embodiment of the present invention. Figure 5 This is provided by the embodiment of the present utility model. Figure 4 A magnified view of a portion of region B in the middle.

[0022] This utility model provides a riveting device, including: a frame 20, a transport table 30, and a first limiting member 40. The frame 20 includes multiple workstations arranged along a first direction 140. The transport table 30 is slidably arranged between the multiple workstations along the first direction 140. The transport table 30 is provided with a limiting hole 31 along a second direction 150. The first limiting member 40 is movably arranged on the frame 20 along the second direction 150. The first limiting member 40 is used to insert into the limiting hole 31 to restrict the movement of the transport table 30 along the first direction 140. The second direction 150 is inclined relative to the first direction 140.

[0023] The workstation refers to the position to which the transport table 30 moves. When the transport table 30 moves to one of the workstations, the riveting device is used to rivet the rivets at a certain position on the workpiece on the transport table 30.

[0024] In practical applications, the transport table 30 is slidably arranged between multiple workstations along the first direction 140, used to sequentially move workpieces to each workstation for riveting during the riveting process. When the transport table 30 moves to the target workstation, the first limiting member 40 is inserted into the limiting hole 31 along the second direction 150 to achieve mechanical locking of the transport table 30. Since the second direction 150 is inclined relative to the first direction 140, the first limiting member 40 generates not only an insertion force along the second direction 150 but also a component force along the first direction 140 during the insertion into the limiting hole 31, causing the transport table 30 to automatically and slightly tighten towards the positioning reference direction when the limiting member is inserted. Through this oblique limiting engagement, the transport table 30 can achieve self-correcting positioning, ensuring that the transport table 30 is pressed to the same reference surface position each time it is locked, thereby eliminating minor positional deviations caused by slide clearance, lead screw wear, or transmission errors.

[0025] In this embodiment, the first limiting member 40 and the transport table 30 are moved by a cylinder. In other embodiments of this application, the first limiting member 40 and the transport table 30 can be driven by other power sources such as an electric slide, an electrode screw mechanism, or an electric push rod.

[0026] In one embodiment, see Figure 4 , Figure 5 and Figure 6 There are multiple limiting holes 31, which are spaced apart along the first direction 140, and each limiting hole 31 corresponds to a working station. The first limiting member 40 is used to insert into the corresponding limiting hole 31 to restrict the movement of the transport table 30 when the transport table 30 moves to one of the multiple workstations.

[0027] In practical applications, multiple limiting holes 31 are spaced apart along the first direction 140 and correspond one-to-one with multiple workstations. This allows the transport table 30 to be precisely limited by the first limiting member 40 at different workstation positions, eliminating the need for multiple first limiting members 40 along the first direction 140, thus saving costs. During the movement of the transport table 30 along the first direction 140, when it reaches the target workstation position, the corresponding limiting hole 31 aligns with the first limiting member 40. At this point, the first limiting member 40 can be inserted into the limiting hole 31 to lock the transport table 30. Because the spatial position of each limiting hole 31 is designed to precisely match the workstation position, the insertion action of the first limiting member 40 simultaneously serves the functions of workstation identification and position correction.

[0028] In one embodiment, see Figure 3 and Figure 6 The transport platform 30 is provided with a guide groove 32, which extends along the first direction 140; The riveting device includes a second limiting member 50, which is slidably fitted into the guide groove 32 along the first direction 140, and is movable on the frame 20 along the second direction 150, so that the second limiting member 50 can enter and exit the guide groove 32 along the first direction 140.

[0029] In practical applications, the transport platform 30 is provided with a guide groove 32 along the first direction 140, and the second limiting member 50 is slidably engaged with the guide groove 32 along the first direction 140, so that the second limiting member 50 can stably enter or exit the guide groove 32 when moving along the second direction 150. This structure achieves guiding constraint between the limiting member and the transport platform 30 through the sliding engagement relationship between the guide groove 32 and the second limiting member 50.

[0030] During the movement of the transport platform 30, the guide groove 32 restricts the lateral swing or tilt of the second limiting member 50, ensuring that the second limiting member 50 is always inserted into the limiting hole 31 or the guide groove 32 in an accurate posture along the second direction 150, thereby ensuring the stability and repeatability of the limiting engagement. Without this guide structure, the second limiting member 50 may tilt, scrape, or fail to be inserted properly when inserted into the limiting hole 31, affecting the reliability of the limiting engagement and the mechanical life.

[0031] Further, see Figure 6 The limiting hole 31 and the guide groove 32 are connected, and the second limiting member 50 is used to pass through the guide groove 32 and the limiting hole 31 in sequence.

[0032] In practical applications, the limiting hole 31 is connected to the guide groove 32, allowing the second limiting member 50 to pass through the guide groove 32 and the limiting hole 31 sequentially during operation, thus forming a smooth guide path during insertion and withdrawal. This structure ensures that the second limiting member 50 enters the guiding groove 32 before being inserted into the limiting hole 31. The guide groove 32 serves as a guide and pre-positioner, correcting the insertion direction of the second limiting member 50 to be consistent with the axis of the limiting hole 31, thus avoiding jamming, scraping, or incomplete insertion caused by angular deviation or slight misalignment during direct insertion.

[0033] As the second limiting member 50 is gradually inserted, the guide groove 32 provides initial guiding constraint, and the limiting hole 31 provides precise positioning at the final stage. This ensures that the second limiting member 50 maintains a stable posture and uniform insertion force during insertion, with high repeatability of the insertion endpoint position. This structure also effectively absorbs manufacturing tolerances or thermal deformation errors between the transport table 30 and the frame 20, reducing insertion force fluctuations and improving the limiting reliability of the device during long-term operation.

[0034] In addition, when the transport table 30 needs to be released, the second limiting member 50 exits in the opposite direction, and the guide groove 32 also provides a release guide, so that the limiting member can smoothly exit the limiting hole 31, preventing wear or jamming caused by direct extraction, thereby improving the durability and positioning consistency of the whole machine's motion mechanism.

[0035] In this embodiment, both the second limiting member 50 and the first limiting member 40 are driven to move by a cylinder. In other embodiments of this application, the second limiting member 50 and the first limiting member 40 can also be driven by a power source such as a motor screw structure or an electric slide.

[0036] In one embodiment, see Figure 3 and Figure 4 The riveting device also includes a guide rail 60, which is disposed on the frame 20 and extends along the first direction 140, and the transport table 30 is slidably engaged with the guide rail 60.

[0037] In practical applications, the guide rail 60 is mounted on the frame 20 along the first direction 140, and the transport table 30 is slidably fitted onto the guide rail 60, thus limiting the movement path of the transport table 30 to a predetermined straight trajectory. Through the geometric constraints of the guide rail 60, the sliding posture of the transport table 30 in the first direction 140 remains consistent, avoiding skewing, shaking, or lateral displacement caused by free movement. This ensures that when the transport table 30 moves to each workstation, its limiting hole 31 can accurately align with the insertion position of the first limiting member 40, improving the accuracy and reliability of the limiting fit.

[0038] During the riveting station switching process, the transport table 30 typically carries heavy workpieces and positioning fixtures. The sliding support function of the guide rail 60 can share the weight of the transport table 30, reduce movement resistance, and prevent instability or jamming caused by cantilever deformation or uneven friction. At the same time, the sliding fit between the guide rail 60 and the transport table 30 can achieve linear guidance, enabling the linear displacement output by the drive mechanism (such as a lead screw, servo cylinder, or belt drive) to be accurately transmitted to the transport table 30, thereby ensuring the consistency and repeatability of the transport table 30's position when switching between multiple stations.

[0039] Furthermore, the guide rail 60 serves a dual function of dynamic limiting and rigid support for the transport table 30, effectively absorbing lateral impact loads generated during acceleration, deceleration, or riveting processes, thus preventing cumulative deviations in station positioning. This structure further enhances the stability and durability of the riveting device under high-frequency operation, reducing problems such as riveting position offsets or misalignment between the rivet head and rivet axis caused by motion deviations.

[0040] Furthermore, referring to Figure 3The riveting device also includes a slider 70 and a fastener 80. The slider 70 is slidably engaged with the guide rail 60. The transport table 30 is slidably disposed on the slider 70 along the second direction 150. The fastener 80 is connected to the slider 70 and the transport table 30 to lock the position of the transport table 30 relative to the slider 70.

[0041] In practical applications, the slider 70 slides along the guide rail 60, allowing the transport table 30 to move freely in the first direction 140. The transport table 30 is slidably mounted on the slider 70 in the second direction 150 and locked in position by the fastener 80. Thus, during assembly or calibration, the position of the slider 70 can be adjusted first along the first direction 140, and then the transport table 30 can be finely adjusted along the second direction 150, achieving two-dimensional precise positioning of the riveting station. After the fastener 80 is locked, the transport table 30 and the slider 70 form a high-rigidity connection, effectively suppressing vibration and offset during the riveting operation, ensuring accurate alignment of the rivet head and rivet axis, improving the accuracy of the riveting position and the stability of repeatability. At the same time, the guide structure of the slider 70 ensures that the transport table 30 moves smoothly, reduces wear, and improves the reliability and service life of the device.

[0042] In this embodiment, the transport platform 30 is moved by a cylinder.

[0043] Furthermore, referring to Figure 3 The transport table 30 has a connecting hole 33 along the second direction 150. The fastener 80 passes through the connecting hole 33 and is connected to the slider 70 to lock the transport table 30 and the slider 70.

[0044] In practical applications, the transport table 30 has a connecting hole 33 along the second direction 150 and is connected to the slider 70 through a fastener 80. This ensures that during the operation of the riveting device, when the transport table 30 moves to a certain position along the guide rail 60 in the first direction 140, the fastener 80 locks the position of the transport table 30 relative to the slider 70, preventing displacement of the transport table 30 due to inertia or the downward pressure of the rivet head during the riveting process. At the same time, when it is necessary to adjust or change the workpiece specifications, the fastener 80 can be loosened to allow the transport table 30 to be finely adjusted or disassembled along the second direction 150, and then re-tightened to complete the positioning. This ensures that the transport table 30 is highly rigid and accurately aligned with the rivet axis during the riveting operation, while also enabling flexible adjustment and convenient maintenance of the transport table 30. This effectively avoids a decrease in riveting quality or damage to the workpiece surface caused by the displacement of the transport table 30.

[0045] In one embodiment, reference is made to Figure 1 and Figure 2 The riveting device includes: a riveting mechanism 90, which is used to rivet the workpiece to be tested; The riveting device includes a protective cover 100, which is connected to the frame 20 and covers the outside of the transport table 30. The protective cover 100 has a disassembly port 101 and a clearance port 102. The disassembly port 101 is opened in the first direction 140 and is used for the transport table 30 to enter or exit the inside of the protective cover 100. The clearance port 102 is opened in the riveting mechanism 90 and is used for the riveting mechanism 90 to enter or exit the inside of the protective cover 100. A baffle 110 is provided on the transport platform 30 corresponding to the disassembly port 101.

[0046] In practical applications, by setting a protective cover 100 in the riveting device, the transport table 30 can smoothly enter or exit the interior of the protective cover 100 through the disassembly port 101 when moving along the first direction 140. The baffle 110 is set corresponding to the disassembly port 101 to prevent parts from flying out of the interior of the protective cover 100 in the event of an accident during the riveting process. At the same time, the clearance port 102 provides operating space for the riveting mechanism 90, allowing the riveting mechanism 90 to enter for riveting or exit to complete workpiece replacement without interfering with the protective cover 100.

[0047] Furthermore, referring to Figure 1 The baffle 110 is equipped with a handle 120.

[0048] In practical applications, by setting a baffle 110 with a handle 120 at the corresponding position of the disassembly port 101 of the protective cover 100, the operator can easily grab and move the baffle 110 during use, so that the transport table 30 can smoothly enter or exit the interior of the protective cover 100.

[0049] In one embodiment, reference is made to Figure 2 and Figure 3 The frame 20 is provided with multiple sensors 130 at intervals along the first direction 140. The sensors 130 are set at corresponding workstations to detect whether the transport table 30 has moved to the corresponding workstation.

[0050] In practical applications, during the operation of the riveting device, multiple sensors 130 are arranged at intervals along the first direction 140 of the frame 20 and correspond to each workstation. When the transport table 30 slides to any workstation along the first direction 140, the corresponding sensor 130 can detect the position of the transport table 30 in real time and send a signal to the control system. In this way, the riveting device can accurately determine whether the transport table 30 is in place, thereby controlling the riveting mechanism 90 to start or stop operation, avoiding misalignment of rivets or damage to workpieces due to positional deviation of the transport table 30, improving riveting accuracy and production stability, and reducing equipment damage caused by malfunctions or collisions.

[0051] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0052] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0053] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A riveting device, characterized in that, include: The frame includes multiple workstations arranged along a first direction; A transport platform is slidably disposed between multiple workstations along a first direction, and a limit hole is provided on the transport platform along a second direction; A first limiting member is movably disposed on the frame along the second direction. The first limiting member is used to insert into the limiting hole to restrict the movement of the transport platform along the first direction. The second direction is inclined relative to the first direction.

2. The riveting device according to claim 1, characterized in that, There are multiple limiting holes, which are spaced apart along the first direction, and each limiting hole corresponds to one of the multiple workstations. The first limiting member is used to insert into the corresponding limiting hole to restrict the movement of the transport platform when the transport platform moves to one of the plurality of workstations.

3. The riveting device according to claim 1, characterized in that, The transport platform is provided with a guide groove, which extends along the first direction; The riveting device includes a second limiting member, which is slidably engaged with the guide groove along the first direction, and is movable on the frame along the second direction, so that the second limiting member can enter and exit the guide groove along the first direction.

4. The riveting device according to claim 3, characterized in that, The limiting hole and the guide groove are connected, and the second limiting member is used to pass through the guide groove and the limiting hole in sequence.

5. The riveting device according to claim 1, characterized in that, The riveting device also includes a guide rail, which is disposed on the frame and extends along the first direction, and the transport table is slidably fitted to the guide rail.

6. The riveting device according to claim 5, characterized in that, The riveting device further includes a slider and a fastener. The slider is slidably engaged with the guide rail. The transport table is slidably disposed on the slider along the second direction. The fastener is connected to the slider and the transport table to lock the position of the transport table relative to the slider.

7. The riveting device according to claim 6, characterized in that, The transport platform has a connecting hole along the second direction, and the fastener passes through the connecting hole and is connected to the slider to lock the transport platform and the slider.

8. The riveting device according to claim 1, characterized in that, A riveting mechanism, used for riveting the workpiece to be tested; The riveting device includes a protective cover, which is connected to the frame and covers the outside of the transport platform. The protective cover has a disassembly port and a clearance port. The disassembly port is opened in the first direction and is used for the transport platform to enter or exit the inside of the protective cover. The clearance port is opened in the direction of the riveting mechanism and is used for the riveting mechanism to enter or exit the inside of the protective cover. The transport platform is equipped with a baffle corresponding to the disassembly / assembly port.

9. The riveting device according to claim 8, characterized in that, The baffle is equipped with a handle.

10. The riveting device according to claim 1, characterized in that, The frame is provided with a plurality of sensors at intervals along a first direction. The sensors are configured to detect whether the transport platform has moved to the corresponding workstation.

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