A combined fuse riveter

Abstract

This utility model relates to the assembly process of fuses and rivets, and provides a combined fuse riveting machine, including a disc feeding device and a rivet feeding device, a rivet detection device, and a riveting pressing device arranged around the periphery of the disc feeding device; the disc feeding device includes a turntable and several tooling components for placing workpieces; the tooling components include a first tooling and a second tooling, the first tooling including a positioning groove; the second tooling is detachably assembled on the turntable; the rivet feeding device includes a rivet loading component and a rivet gripping component, the rivet gripping component including a linear transport module and a picking claw; the rivet detection device is used to detect the placement of rivets; the riveting pressing device is used to rivet the rivets, integrating the feeding, detection, and riveting processes along the circumference of the turntable in one go, avoiding manual handling; the intermittent rotation of the turntable enables the automatic flow of workpieces between various stations, significantly reducing labor costs and increasing cycle time.

Description

Technical Field

[0001] This utility model relates to the assembly process of fuses and rivets, and more particularly to a combined fuse riveting machine. Background Technology

[0002] In the assembly process of fuses and rivets, the traditional method usually involves manual feeding, manual assembly, and then riveting using a manual or foot-operated punch press. This method has the following obvious drawbacks: 1. Poor consistency in manual assembly, with frequent omissions and misalignments, leading to incomplete riveting, over-riveting, or even product scrap during subsequent riveting; 2. Lack of online inspection methods, requiring offline sampling inspection of finished products, making it impossible to detect defects in a timely manner, resulting in a high rework rate; 3. High labor costs and high labor intensity. Utility Model Content

[0003] This utility model aims to solve the defects in the existing assembly process of fuses and rivets, and provides a combined fuse riveting machine that adopts semi-automatic riveting, adds automatic rivet feeding, assembly and inspection, improves the yield of finished products and improves processing efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides a combined fuse riveting machine, including a disc feeding device and a rivet feeding device, a rivet detection device and a riveting pressing device arranged around the periphery of the disc feeding device.

[0005] The disc feeding device includes a turntable and several tooling components for placing workpieces, with the tooling components arranged at equal intervals around the turntable along the circumferential direction.

[0006] The tooling assembly includes a first tooling and a second tooling. The first tooling includes a positioning groove, which holds the part of the fuse workpiece where rivets need to be placed, and the part includes several rivet holes.

[0007] The second tooling is detachably assembled on the turntable. The second tooling is installed at any position around the location of the first tooling. The second tooling is used to support the fuse workpiece except for the part where the rivet is placed.

[0008] The rivet feeding device includes a rivet feeding assembly and a rivet gripping assembly. The rivet gripping assembly includes a linear transport module and a gripping claw. Driven by the linear transport module, the gripping claw picks up rivets from the rivet feeding assembly and transports them to the turntable for rivet placement.

[0009] The rivet detection device is used to detect the placement of rivets at the locations where rivets need to be placed on the fuse workpiece; the riveting device is used to rivet the placed rivets at the locations where rivets need to be placed on the fuse workpiece.

[0010] In a preferred embodiment, the positioning groove includes a plurality of positioning holes, the positioning holes corresponding to the rivet holes.

[0011] In a preferred embodiment, four rivet holes are distributed along a rectangular array at the part of the fuse workpiece where rivets need to be placed, and four positioning holes are correspondingly distributed along the rectangular array in the positioning groove.

[0012] In a preferred embodiment, the second tooling is detachably assembled on the turntable by magnetic attraction, and the second tooling includes at least one magnetic support block.

[0013] In a preferred embodiment, the disc feeding device includes a turntable driving device for driving the turntable to rotate in a circumferential direction.

[0014] In a preferred embodiment, four tooling components are evenly distributed on the turntable, wherein three of the tooling components are located at positions corresponding to the rivet feeding device, the rivet detection device, and the riveting device, respectively, and one of the tooling components is located at the loading and unloading position of the fuse workpiece.

[0015] In a preferred embodiment, a circular indexing plate is provided at the feeding port of the rivet feeding assembly, and a plurality of discharge ports are provided at equal intervals along the circumferential direction of the indexing plate, through which the rivets are discharged; the number of discharge ports is consistent with the number of rivet holes.

[0016] In a preferred embodiment, the rivet feeding assembly further includes a sensing device disposed along the edge of the indexing plate for detecting the rivet status at one of the discharge ports.

[0017] In a preferred embodiment, the linear transport module includes a horizontal moving module and a vertical moving module, the vertical moving module being connected to the horizontal moving module, and the picking claw being connected to the vertical moving module; the picking claw is a rivet-picking mechanical claw.

[0018] In a preferred embodiment, the rivet detection device includes an upper detection component and a lower detection component, with a gap between the upper and lower detection components, and the turntable rotates the tooling component within the gap for detection;

[0019] Both the upper and lower detection components include several fiber optic sensors, and the position of one fiber optic sensor corresponds to the position of one rivet hole.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0021] 1. This utility model integrates the three processes of feeding, detection, and riveting in one go along the circumference of the turntable by setting up a disc feeding device and a rivet feeding device, a rivet detection device, and a riveting device arranged around the periphery of the disc feeding device, thus avoiding manual handling; the workpiece can be automatically transferred between each station by the intermittent rotation of the turntable, which significantly reduces labor costs and increases cycle time.

[0022] 2. This utility model integrates the originally scattered manual processes into the same machine through four continuous actions: "feeding - rivet installation - fiber optic detection - riveting". The workpiece does not need to be repeatedly handled, realizing high-speed semi-automatic production.

[0023] 3. Fiber optic online inspection removes missing or misaligned parts in real time, improving yield, reducing rework and scrap, and directly lowering material and labor costs. The semi-automatic structure requires only one person for loading and unloading, significantly reducing labor intensity. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the combined fuse riveting machine in a preferred embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram showing the distribution of various devices in the combined fuse riveting machine according to a preferred embodiment of the present invention;

[0026] Figure 3 This is a structural diagram of the disc feeding device in a preferred embodiment of the present invention;

[0027] Figure 4 This is a structural diagram of the fuse workpiece in a preferred embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the fuse workpiece placed on the disc feeding device in a preferred embodiment of the present invention;

[0029] Figure 6 This is a structural diagram of the rivet feeding assembly in a preferred embodiment of the present invention;

[0030] Figure 7 This is a structural diagram of the rivet detection device in a preferred embodiment of the present invention;

[0031] Figure 8 This is a structural diagram of the riveting device in a preferred embodiment of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Disc feeding device; 11. Turntable; 12. First tooling; 121. Positioning groove; 122. Positioning hole; 13. Second tooling; 131. Magnetic support block; 14. Turntable drive device; 2. Rivet feeding device; 21. Rivet loading assembly; 211. Circular indexing plate; 212. Discharge port; 213. Sensing device; 22. Rivet gripping assembly; 221. Lateral movement module; 222. Vertical movement module; 223. Picking claw; 3. Rivet detection device; 31. Upper detection assembly; 32. Lower detection assembly; 33. Fiber optic sensor; 4. Riveting device; 5. Fuse workpiece; 51. Rivet hole; 6. Rivet. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] refer to Figures 1-8 This embodiment provides a combined fuse riveting machine, including a central control system, a disc feeding device 1, and a rivet feeding device 2, a rivet detection device 3, and a riveting pressing device 4 arranged around the periphery of the disc feeding device 1.

[0037] The disc feeding device 1 includes a turntable 11 and several tooling components for placing workpieces (such as...). Figure 3 Several tooling components are arranged at equal intervals around the turntable 11. The turntable 11 serves as the central support, and the tooling components arranged at equal intervals sequentially deliver the fuse workpiece 5 to the rivet feeding device 2, the detection device, and the riveting device 4 for processing operations of the corresponding processes.

[0038] like Figure 3 In this embodiment, the disc feeding device 1 includes a turntable driving device 14, which drives the turntable 11 to rotate circumferentially. Four tooling components are evenly distributed on the turntable 11, such as... Figure 2 The three tooling components correspond to the rivet feeding device 2, the rivet detection device 3, and the riveting device 4, respectively. One of the tooling components is located at the loading and unloading position of the fuse workpiece 5. The four-station symmetrical layout (loading / unloading, rivet feeding, detection, and riveting) achieves the shortest path flow; there is no idle time between stations, and the rotation transport cycle is 360° / 4 = 90° / time, maximizing efficiency.

[0039] The turntable drive device 14 includes a servo motor and a cam divider. The motor drives the turntable 11 via a reducer, divider, and turntable 11. The turntable 11 rotates 90° and pauses each time, completing one station change. Each of the three tooling components stops directly below the three actuators (rivet feeding device 2, rivet detection device 3, and riveting device 4) when the turntable 11 stops. Each stop of the turntable 11 synchronizes the corresponding station's movement. One of the tooling components stops, serving as an loading / unloading station for manual or robotic operation, enabling parts change without stopping the machine.

[0040] like Figure 5 The tooling assembly includes a first tooling 12 and a second tooling 13. The first tooling 12 includes a positioning groove 121, which is used to position the part of the fuse workpiece 5 where the rivet 6 needs to be placed. Figure 4 The part requiring the placement of rivets 6 is the housing part of the 300A standard, and this part includes several rivet holes 51. The second tooling 13 is detachably assembled onto the turntable 11. The second tooling 13 is installed at any position around the location of the first tooling 12. The second tooling 13 is used to support the fuse workpiece 5 in all parts except the part where rivets 6 are placed, i.e., all connecting parts other than the housing part of the 300A standard.

[0041] In this embodiment, to ensure the rivet 6 can be smoothly inserted and positioned, the positioning groove 121 includes several positioning holes 122, which correspond to the rivet holes 51, ensuring that the rivet 6 can fall in vertically. The positioning holes 122 are concentric with the rivet holes 51, and their diameters are slightly larger than the outer diameter of the rivet 6, forming a clearance fit. When placing the fuse workpiece 5, simply inserting the fuse workpiece 5 into the positioning groove 121 will automatically align the positioning holes 122 with the rivet holes 51. The positioning holes 122 provide double positioning for the rivet 6 portion of the fuse workpiece 5, preventing the rivet 6 from being misaligned during insertion.

[0042] In this embodiment, the second tooling 13 is detachably assembled onto the turntable 11 using a magnetic attraction method. Specifically, a permanent magnet can be embedded in the bottom of the second tooling 13, allowing it to be directly attracted to the ferromagnetic surface of the turntable 11. When a change is needed, it can be removed by hand without tools. The magnetically attached second tooling 13 can be quickly replaced to accommodate fuse workpieces 5 of different lengths or widths. The second tooling 13 includes two magnetic support blocks 131, which are magnetically attracted to the surface of the turntable 11, forming a three-point support together with the first tooling 12 to prevent cantilever deformation of the fuse workpiece 5.

[0043] like Figure 6 The rivet feeding device 2 includes a rivet feeding assembly 21 and a rivet gripping assembly 22. The rivet gripping assembly 22 includes a linear transport module and a picking claw 223. The picking claw 223, driven by the linear transport module, picks up the rivet 6 from the rivet feeding assembly 21 and transports it to the turntable 11 for placement of the rivet 6.

[0044] Specifically, the linear transport module includes a horizontal moving module 221 and a vertical moving module 222. The vertical moving module 222 is connected to the horizontal moving module 221, and the picking claw 223 is connected to the vertical moving module 222. The picking claw 223 is a mechanical claw that picks up rivets 6. The horizontal module is fixed to the machine base by a bracket, and the vertical module slide is connected to the slider of the horizontal module. The picking claw 223 is installed at the end of the vertical module. The horizontal and vertical linear modules constitute a two-dimensional transport mechanism to realize "picking up - transporting - unloading".

[0045] The rivet feeding assembly 21 is provided with a circular indexing plate 211 at the feeding port. The indexing plate is provided with a plurality of discharge ports 212 at equal intervals along the circumferential direction. The rivets 6 are discharged from the discharge ports 212. The number of discharge ports 212 is the same as the number of rivet holes 51.

[0046] In this embodiment, the portion of the fuse workpiece 5 where the rivets 6 need to be placed has four rivet holes 51 distributed along a rectangular array (e.g., Figure 4 The positioning groove 121 contains four positioning holes 122 distributed in a rectangular array (e.g., ...). Figure 3 The rectangular array of 2×2 rivets allows for simultaneous installation of four rivets at once, improving the success rate of installation. The array arrangement facilitates simultaneous inspection and riveting of all four heads, significantly reducing the cycle time. The number of discharge ports 212 is set to four, and the circular indexing plate 211 achieves "four rivets discharged simultaneously" through the four discharge ports 212.

[0047] To facilitate the identification and handling of rivets 6, the rivet feeding assembly 21 further includes a sensing device 213. The sensing device 213 is disposed along the edge of the indexing plate and is used to detect the status of rivets 6 at one of the discharge ports 212. The sensing device 213 is located near the outer edge of the indexing plate, which is the side used for gripping by the mechanical claw. In this embodiment, the sensing device 213 employs a fiber optic sensor or a capacitive sensor.

[0048] When the rivet-collecting robotic gripper picks up the rivet, it moves to the outside of the indexing plate, with its suction nozzle facing the current discharge port 212. Vacuum is activated, and the single rivet is sucked up. After the rivet-collecting robotic gripper picks up the rivet 6, the sensing device 213 detects that the discharge port 212 is empty and sends feedback to the control system of the rivet loading assembly 21. This drives the circular indexing plate 211 to rotate 90°. The next discharge port 212, carrying the rivet 6, arrives at the outer waiting position. The robotic gripper then transports the rivet 6 to the tooling on the turntable 11. After the vacuum is broken and the material is released, the gripper returns to the outside of the indexing plate, and the cycle repeats.

[0049] This embodiment adopts a closed-loop control method in which the mechanical claw of the rivet pick-up tool picks up only one rivet 6 at a time, and the indexing plate rotates 90° when a rivet is missing. This allows the rivets 6 to be discharged one by one without stopping the machine to fill in the gaps, which avoids the accidental picking up of multiple rivets and ensures continuous material supply.

[0050] like Figure 7 The rivet detection device 3 is used to detect the placement of rivets 6 at the locations where rivets 6 need to be placed on the fuse workpiece 5. Specifically, the rivet detection device 3 includes an upper detection component 31 and a lower detection component 32, with a gap between them. The turntable 11 rotates and places the tooling component within this gap for detection. Both the upper and lower detection components 31 and 32 include four fiber optic sensors 33 arranged in a rectangular array, with each fiber optic sensor 33 corresponding to the position of one rivet hole 51. The upper and lower detection components 31 and 32 form a "sandwich" detection area. The turntable 11, carrying the tooling component, passes through this gap to complete the detection of the presence, orientation, and height of the four rivets 6 in one go, and feeds the detection results back to the central control system. If a missing, misaligned, or insufficiently high rivet is found, the central control system immediately issues an audible and visual alarm and stops manual processing, ensuring that the placement of the rivets 6 entering the riveting device 4 is 100% qualified.

[0051] like Figure 8 The riveting device 4 is used to rivet the placed rivets 6 into the rivet holes 51. The riveting device 4 can be a four-unit synchronous riveting mechanism driven by a servo electric cylinder, with four pressure heads arranged coaxially with the four rivet holes 51 of the fuse workpiece 5. After the turntable 11 sends the qualified fuse workpiece 5 into the riveting position, the riveting device 4 performs the riveting process of the rivets 6, realizing the reliable riveting of four rivets 6 in one action. After completion, the turntable 11 continues to rotate.

[0052] The combined fuse rivet machine provided in this embodiment is operated as follows:

[0053] The first step is to manually load the fuse workpiece 5 onto one of the tooling components (i.e., the loading / unloading station). The housing part of the fuse workpiece 5 is placed in the positioning groove 121, aligned with the rivet hole 51 and the positioning hole 122. Then, the two magnetic support blocks 131 are moved to form a three-point support with the first tooling 12 to stably support the fuse workpiece 5. The adjustment of the magnetic support blocks 131 is only required when loading the first four fuse workpieces 5. If the subsequent loading is of the same type of fuse workpiece 5, the magnetic support blocks 131 do not need to be adjusted.

[0054] In the second step, the turntable 11 rotates 90° to rotate the tooling assembly with the fuse workpiece 5 to the position of the rivet feeding device 2. The rivet picking mechanical claw performs four cycles of "picking up - handling - unloading" under the drive of the linear transport module. After four gripping cycles, the circular indexing plate 211 of the rivet feeding assembly 21 starts again from the four discharge ports 212 to achieve "four rivets coming out at the same time", waiting for the next gripping.

[0055] The third step is to rotate the turntable 90° after four gripping cycles, and rotate the fuse workpiece 5 with rivets 6 to the position of the rivet detection device 3. The turntable 11 rotates with the tooling assembly and is placed in the interval for detection. The fiber optic sensors 33 of the upper detection assembly 31 and the lower detection assembly 32 detect the placement of rivets 6. After the detection is correct, the turntable 11 continues to rotate.

[0056] Fourth step, the turntable continues to rotate 90°, and rotates the fuse workpiece 5 that has been inspected and found to be correct to the position of the riveting device 4. The riveting device 4 performs the riveting process of the rivet 6. After completion, the turntable 11 continues to rotate.

[0057] Fifth, the turntable continues to rotate 90°, and the riveted finished product fuse workpiece 5 is rotated again to one of the tooling components (i.e., loading / unloading station), where the finished product is unloaded manually, and the fuse workpiece 5 to be riveted again is loaded.

[0058] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A combination fuse riveter characterized by: It includes a disc feeding device and a rivet feeding device, a rivet detection device and a riveting device arranged around the periphery of the disc feeding device; The disc feeding device includes a turntable and several tooling components for placing workpieces, with the tooling components arranged at equal intervals around the turntable along the circumferential direction. The tooling assembly includes a first tooling and a second tooling. The first tooling includes a positioning groove, which holds the part of the fuse workpiece where rivets need to be placed, and the part includes several rivet holes. The second tooling is detachably assembled on the turntable. The second tooling is installed at any position around the location of the first tooling. The second tooling is used to support the fuse workpiece except for the part where the rivet is placed. The rivet feeding device includes a rivet feeding assembly and a rivet gripping assembly. The rivet gripping assembly includes a linear transport module and a gripping claw. Driven by the linear transport module, the gripping claw picks up rivets from the rivet feeding assembly and transports them to the turntable for rivet placement. The rivet detection device is used to detect the placement of rivets at the locations where rivets need to be placed on the fuse workpiece; the riveting device is used to rivet the placed rivets at the locations where rivets need to be placed on the fuse workpiece.

2. A combination fuse riveter machine according to claim 1 wherein: The positioning groove includes a plurality of positioning holes, which correspond to the rivet holes.

3. A combination fuse riveter machine as defined in claim 2 wherein: The fuse workpiece has four rivet holes distributed along a rectangular array at the part where rivets need to be placed, and four positioning holes are correspondingly distributed along the rectangular array in the positioning groove.

4. A combined fuse riveting machine according to claim 1, characterized in that: The second tooling is detachably assembled on the turntable by magnetic attraction, and the second tooling includes at least one magnetic support block.

5. A combined fuse riveting machine according to claim 1, characterized in that: The disc feeding device includes a turntable driving device, which drives the turntable to rotate in a circumferential direction.

6. A combined fuse riveting machine according to claim 5, characterized in that: Four tooling components are evenly distributed on the turntable, three of which correspond to the rivet feeding device, the rivet detection device, and the riveting device, respectively, and one of the tooling components is the loading and unloading position of the fuse workpiece.

7. A combined fuse riveting machine according to claim 1, characterized in that: The rivet feeding assembly has a circular indexing plate at its feeding port. The indexing plate has several discharge ports at equal intervals along its circumference, and the rivets are discharged from the discharge ports. The number of discharge ports is the same as the number of rivet holes.

8. A combined fuse riveting machine according to claim 7, characterized in that: The rivet feeding assembly also includes a sensing device disposed along the edge of the indexing plate, used to detect the status of rivets at one of the discharge ports.

9. A combined fuse riveting machine according to claim 8, characterized in that: The linear transport module includes a horizontal moving module and a vertical moving module. The vertical moving module is connected to the horizontal moving module, and the picking claw is connected to the vertical moving module. The picking claw is a rivet-picking mechanical claw.

10. A combined fuse riveting machine according to claim 1, characterized in that: The rivet detection device includes an upper detection component and a lower detection component, with a gap between the upper and lower detection components. The turntable rotates the tooling component and places it within the gap for detection. Both the upper and lower detection components include several fiber optic sensors, and the position of one fiber optic sensor corresponds to the position of one rivet hole.

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