A riveting device for distribution box production

Abstract

The utility model relates to the technical field of pressure riveting, specifically to a pressure riveting device for distribution box production, which comprises a rack, a hydraulic cylinder fixedly installed on the top of the rack, the output end of the hydraulic cylinder downwardly penetrating the rack, a pressure riveting head fixedly arranged on the output end of the hydraulic cylinder, and a supporting mechanism arranged below the pressure riveting head for supporting pressure riveting. The utility model discloses a pressure riveting device for distribution box production, which comprises a rack, a hydraulic cylinder fixedly installed on the top of the rack, the output end of the hydraulic cylinder downwardly penetrating the rack, a pressure riveting head fixedly arranged on the output end of the hydraulic cylinder, and a supporting mechanism arranged below the pressure riveting head for supporting pressure riveting. The utility model discloses a pressure riveting device for distribution box production, which comprises a rack, a hydraulic cylinder fixedly installed on the top of the rack, the output end of the hydraulic cylinder downwardly penetrating the rack, a pressure riveting head fixedly arranged on the output end of the hydraulic cylinder, and a supporting mechanism arranged beneath the pressure riveting head for supporting pressure riveting. The utility model discloses a pressure riveted device for distribution box production, which comprises a rack, a hydraulic cylinder fixedly installed on the rack, the output end of the hydraulic cylinder downwardly penetrating the rack, a pressure riveted head fixedly arranged on the output end of the hydraulic cylinder, and a supporting mechanism arranged below.

Description

Technical Field

[0001] This utility model relates to the field of riveting technology, and in particular to a riveting device for the production of electrical distribution boxes. Background Technology

[0002] Riveting of distribution boxes is an important process in production. It uses a special device to precisely fix rivets, nuts, bolts and other connecting parts to the box or components. External pressure is used to cause plastic deformation of the connecting parts and the base material and form a mechanical engagement to achieve a high-strength fastening connection. In the traditional riveting machine operation, the riveting holes of the plate are usually aligned with the lower die first, and then the bolts to be riveted are inserted into the riveting holes and the reserved holes of the lower die before riveting.

[0003] A riveting device for the production of electrical distribution boxes is disclosed in Chinese Patent Publication No. CN222643157U. This riveting device provides horizontal support for the sheet metal through a support base, eliminating the need for manual support and preventing the sheet metal from tilting, thus ensuring the riveting effect. However, according to related technologies and existing technologies, when riveting bolts for electrical distribution box components, traditional riveting machines require the lower die to have a pre-drilled hole slightly larger than the bolt diameter for easy insertion. This makes it difficult to accurately align the bolt with the riveting head during riveting, easily causing misalignment and affecting the riveting accuracy and quality. At the same time, the pre-drilled hole is close to the bolt diameter, and even slight misalignment can cause jamming during insertion and removal. After riveting, the deformation at the bottom of the riveting hole in the sheet metal can partially embed into the gap between the pre-drilled hole and the bolt, further making it difficult to remove the bolt and reducing the processing speed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a riveting device for the production of distribution boxes.

[0005] The purpose of this utility model is achieved through the following technical solution: a riveting device for producing distribution boxes, including a frame, a hydraulic cylinder fixedly installed on the top of the frame, the output end of the hydraulic cylinder penetrating downward through the frame, a riveting head fixedly provided on the output end of the hydraulic cylinder, and a support mechanism for supporting the riveting process provided below the riveting head on the frame.

[0006] The support mechanism includes a trigger assembly mounted on a frame. The trigger assembly has multiple clamping assemblies inside, which are arranged in a circumferential array. The trigger assembly is used to control the centering and clamping of the multiple clamping assemblies to the bolts during riveting. The top of the trigger assembly is provided with a reset assembly for controlling the elastic reset of the multiple clamping assemblies.

[0007] Preferably, the triggering component includes a support base fixed to the frame, the top of the support base is provided with a conical groove, and the conical surface of the conical groove is provided with a plurality of guide grooves for controlling the centering movement of the plurality of clamping components.

[0008] Preferably, the clamping assembly includes a clamping block movably disposed within the conical groove, a guide strip fixedly disposed at the bottom of the clamping block and slidably engaged with the guide groove, and an outer edge fixedly disposed on the outer side of the top of the clamping block.

[0009] Preferably, the reset assembly includes a guide sleeve that is vertically slidably mounted on the top of the support base, a synchronization ring is fixedly provided on the top of the guide sleeve, the upper surface of the synchronization ring is in contact with the bottom surface of the outer edge, and a spring is provided between the synchronization ring and the support base.

[0010] Preferably, the plurality of guide grooves are arranged in a circumferential array, and the horizontal projection of the guide grooves is along the radial direction of the support.

[0011] Preferably, the plurality of clamping blocks are assembled into a complete cone when clamped, and the clamping surfaces of the plurality of clamping blocks are in contact with the surface of the bolt to be pressed when clamped.

[0012] Preferably, the bottom surface of the outer edge is provided with a connecting groove, the horizontal projection direction of the connecting groove is consistent with the horizontal projection direction of the guide groove, and the synchronous ring is fixedly provided with a connecting strip at the position of each connecting groove, and the connecting strip slides in conjunction with the connecting groove.

[0013] Preferably, the top of the support base is provided with an annular groove for limiting the sliding stroke of the guide sleeve.

[0014] Beneficial effects:

[0015] The riveting device produced by this distribution box, through the setting of triggering components, clamping components, and reset components, eliminates the need for precise alignment of bolts with the center area during bolt placement; they can be directly inserted, simplifying bolt placement. During subsequent riveting, the downward movement of the clamping blocks automatically triggers a centering clamping action, achieving precise positioning before riveting, preventing bolt misalignment, and improving riveting accuracy and quality. Furthermore, the three clamping blocks achieve synchronous reset through a synchronizing ring and a spring reset component. After riveting is completed, the reset component automatically controls the clamping component to reset and release the bolt, solving the problems of bolt pull-out jamming caused by the pre-drilled hole being too close to the bolt diameter, and bolt pull-out difficulties caused by deformation of the bottom of the riveting hole in the sheet metal after riveting, significantly improving overall processing speed. Attached Figure Description

[0016] 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 these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the support mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram showing the initial engagement of the clamping component and the triggering component of this utility model;

[0021] Figure 5 This is a schematic diagram of the initial state of the clamping block in this utility model;

[0022] Figure 6 This is a schematic diagram showing the cooperation between the clamping component and the triggering component during riveting in this utility model;

[0023] Figure 7 This is a schematic diagram showing the state of the clamping block during the riveting process of this utility model.

[0024] In the diagram: 1. Frame; 2. Hydraulic cylinder; 3. Riveting head; 4. Trigger assembly; 41. Support base; 42. Conical groove; 43. Guide groove; 44. Annular groove; 5. Clamping assembly; 51. Clamping block; 52. Outer edge; 53. Guide bar; 54. Connecting groove; 6. Reset assembly; 61. Guide sleeve; 62. Synchronization ring; 63. Connecting bar; 64. Spring. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0027] like Figures 1 to 7 As shown, a riveting device for producing electrical distribution boxes includes a frame 1. A hydraulic cylinder 2 is fixedly mounted on the top of the frame 1. The output end of the hydraulic cylinder 2 extends downward through the frame 1, and a riveting head 3 is fixedly mounted on the output end of the hydraulic cylinder 2. A support mechanism for supporting the riveting process is provided below the riveting head 3 on the frame 1. The support mechanism includes a trigger assembly 4 mounted on the frame 1. The trigger assembly 4 contains three clamping assemblies 5 arranged in a circumferential array. The trigger assembly 4 is used to control the centering and clamping of the three clamping assemblies 5 during riveting. A reset assembly 6 is provided on the top of the trigger assembly 4 to control the elastic reset of the three clamping assemblies 5. In use, the riveting holes of the plate are first aligned with the centers of the three clamping assemblies 5. Then, the bolt to be riveted is inserted. At this time, the three clamping components 5 are in a relaxed state, with a large gap between them and the bolt, which facilitates the insertion of the bolt. Then, the frame 1 supports the extension of the hydraulic cylinder 2, controlling the riveting head 3 to press down. When the riveting head 3 just begins to squeeze the plate and the bolt, the clamping components 5 are pressed and, under the control of the triggering component 4, center and clamp the bolt to prevent the bolt from becoming skewed, ensure accurate bolt positioning, and improve the accuracy of riveting. After clamping, the clamping components 5 can no longer move and can support the riveting process. After the riveting is completed, the hydraulic cylinder 2 controls the riveting head 3 to reset. During this process, the reset component 6 automatically controls the clamping components 5 to reset, loosening the bolt, reducing the difficulty of bolt removal, and improving the overall processing speed.

[0028] like Figures 1 to 4 As shown, the triggering component 4 includes a support base 41 fixed on the frame 1. A tapered groove 42 is provided on the top of the support base 41. Three guide grooves 43 for controlling the centering movement of the three clamping components 5 are provided on the tapered surface of the tapered groove 42. The three guide grooves 43 are arranged in a circumferential array and their horizontal projection is along the radial direction of the support base 41. During riveting, the three clamping components 5 slide along the three guide grooves 43 on the surface of the tapered groove 42. The guide grooves 43 with their horizontal projection along the radial direction of the support base 41 can convert the vertical movement of the clamping components 5 into radial movement, thereby achieving centering clamping.

[0029] like Figures 3 to 7As shown, the clamping assembly 5 includes a clamping block 51 movably disposed within the conical groove 42. A guide strip 53 is fixedly provided at the bottom of the clamping block 51, which slides with the guide groove 43 (the two are coated with lubricating oil to reduce sliding friction). The bottom of the clamping block 51 is conical and fits against the conical surface of the conical groove 42. When clamped, the three clamping blocks 51 form a complete cone. The clamping surfaces of the three clamping blocks 51 fit against the surface of the bolt to be riveted. An outer edge 52 is fixedly provided on the outer side of the top of the clamping block 51. In the initial state, the clamping block 51 is in a high position, and a large gap is formed between the three clamping blocks 51 to facilitate bolt insertion. During riveting, the clamping block 51 is pressed along the conical edge. As the groove 42 slides down, the guide bar 53 moves radially along the guide groove 43. The arc-shaped clamping surface of the clamping block 51 gradually fits against the outer wall of the bolt. The bolt is centered and clamped by a three-point circumferential array to prevent it from skewing, ensure accurate bolt positioning, and improve the accuracy of riveting. After clamping, the bottom of the clamping block 51 is completely fitted with the tapered groove 42 to form a rigid support, ensuring stable transmission of riveting force. At the same time, the sides of the three clamping blocks 51 fit together in pairs, and the clamping surfaces form a complete pre-reserved hole shape with only a very small gap between them and the bolt. This can reduce the deformation caused by the gap between the pre-reserved hole and the bolt at the bottom of the rivet hole in the plate, and improve the quality of riveting.

[0030] like Figures 3 to 7As shown, the reset assembly 6 includes a guide sleeve 61 vertically slidably mounted on the top of the support base 41. A synchronizing ring 62 is fixedly provided on the top of the guide sleeve 61. The upper surface of the synchronizing ring 62 is in contact with the bottom surface of the outer edge 52. A spring 64 is provided between the synchronizing ring 62 and the support base 41. A connecting groove 54 is provided on the bottom surface of the outer edge 52. The horizontal projection direction of the connecting groove 54 is consistent with the horizontal projection direction of the guide groove 43. A connecting strip 63 is fixedly provided on the synchronizing ring 62 at the position corresponding to each connecting groove 54. The connecting strip 63 slides with the connecting groove 54. An annular groove 44 is provided on the top of the support base 41 to limit the sliding stroke of the guide sleeve 61. In the initial state, the spring 64 is in a naturally extended state. The synchronizing ring 62 pushes up the outer edges 52 of the three clamping blocks 51, keeping the clamping blocks 51 in a relaxed position. During riveting, the clamping blocks 51 are pressed and move towards the center, and the outer edges 52 are squeezed. The timing ring 62 is pressed, causing the guide sleeve 61 to slide along the annular groove 44 on the top of the support base 41. The spring 64 is compressed and stores energy. During this process, the connecting strip 63 on the timing ring 62 is embedded in the connecting groove 54 of the outer edge 52 of the clamping block 51, ensuring that the three clamping blocks 51 move synchronously. After the clamping block 51 clamps the bolt, the bottom of the guide sleeve 61 just moves to the bottom of the annular groove 44, forming a rigid support on the outside to ensure the stability of the riveting process. After the riveting is completed, the riveting head 3 moves upward, the pressure between the plate and the bolt disappears, the spring 64 releases elastic potential energy, pushes the timing ring 62 upward, and causes the three clamping blocks 51 to slide synchronously in the opposite direction along the guide groove 43, so that the clamping blocks 51 are evenly reset and the bolt is loosened. This not only reduces the pulling jam caused by the skew, but also avoids the difficulty of bolt pulling out caused by the partial embedding of the plate, greatly reducing the difficulty of bolt pulling out and improving the overall processing speed.

[0031] The work process is as follows:

[0032] S1: As Figures 3 to 5 As shown, in the initial state, the spring 64 is in a naturally extended state, and the synchronous ring 62 pushes up the outer edge 52 of the three clamping blocks 51, so that the clamping blocks 51 are located at the high position of the conical groove 42, and a large gap is formed between the three clamping blocks 51, which makes it easy to insert the bolt to be pressed into the center of the three clamping blocks 51.

[0033] S2: As Figure 4 and Figure 5 As shown, align the riveting holes of the plate with the center of the three clamping blocks 51, so that the bolt passes through the riveting holes of the plate and is inserted between the clamping blocks 51. At this time, the clamping blocks 51 are in a relaxed state and there is a large gap between them and the bolt, so that the bolt can be placed conveniently.

[0034] S3: As Figure 1 , Figure 4 and Figure 6As shown, the frame 1 supports the extension of the hydraulic cylinder 2, controls the pressing head 3 to press down, the pressing head 3 begins to contact and squeeze the plate and bolt, the plate is subjected to force and pushes the clamping block 51 to slide down along the conical groove 42, and the guide strip 53 at the bottom of the clamping block 51 moves radially along the guide groove 43.

[0035] S4: As Figure 6 and Figure 7 As shown, during the downward movement of the clamping block 51, its arc-shaped clamping surface gradually fits against the outer wall of the bolt. The bolt is centered and clamped by the three-point circumferential array distribution to prevent the bolt from tilting. At the same time, the outer edge 52 squeezes the synchronous ring 62, which drives the guide sleeve 61 to slide along the annular groove 44 at the top of the support base 41. The spring 64 is compressed and stores energy, and the connecting strip 63 slides along the connecting groove 54 to ensure that the three clamping blocks 51 move synchronously.

[0036] S5: As Figure 1 and Figure 6 As shown, the bottom of the clamping block 51 is fully fitted with the conical groove 42 to form a rigid support, supporting the continuous downward pressing of the riveting head 3 to complete the riveting operation. At the same time, the bottom of the guide sleeve 61 moves to the bottom of the annular groove 44, thereby providing support on the outside and ensuring stable transmission of the riveting force.

[0037] S6: As Figure 1 , Figure 4 and Figure 6 As shown, after the riveting is completed, the hydraulic cylinder 2 controls the riveting head 3 to reset and move upward. The pressure between the plate and the bolt disappears, and the spring 64 releases elastic potential energy to push the synchronous ring 62 to move upward. Through the connecting strip 63, the three clamping blocks 51 slide synchronously in the opposite direction along the guide groove 43. The clamping blocks 51 reset to the initial high position and loosen the bolt, reducing the difficulty of pulling out the bolt and completing one riveting cycle.

[0038] The hydraulic cylinder 2 and the riveting head 3 are known technologies in this application, therefore their specific structures and working principles are not described in detail.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A riveting device for manufacturing distribution boxes, characterized in that: Includes a frame (1), on the top of the frame (1) a hydraulic cylinder (2) is fixedly installed, the output end of the hydraulic cylinder (2) passes through the frame (1) downwards, the output end of the hydraulic cylinder (2) is fixedly provided with a riveting head (3), and the frame (1) is provided with a support mechanism for supporting the riveting process below the riveting head (3); The support mechanism includes a trigger assembly (4) mounted on the frame (1). The trigger assembly (4) has multiple clamping assemblies (5) inside, which are arranged in a circumferential array. The trigger assembly (4) is used to control the multiple clamping assemblies (5) to center and clamp the bolt during riveting. The top of the trigger assembly (4) is provided with a reset assembly (6) for controlling the multiple clamping assemblies (5) to elastically reset.

2. The riveting device for manufacturing a distribution box according to claim 1, characterized in that: The triggering component (4) includes a support base (41) fixed on the frame (1). The top of the support base (41) is provided with a conical groove (42). The conical surface of the conical groove (42) is provided with a plurality of guide grooves (43) for controlling the centering movement of the plurality of clamping components (5).

3. The riveting device for manufacturing a distribution box according to claim 2, characterized in that: The clamping assembly (5) includes a clamping block (51) movably disposed in the conical groove (42), the bottom of the clamping block (51) is fixedly provided with a guide strip (53) that slides with the guide groove (43), and the top outer side of the clamping block (51) is fixedly provided with an outer edge (52).

4. The riveting device for manufacturing a distribution box according to claim 3, characterized in that: The reset assembly (6) includes a guide sleeve (61) that is vertically slidably mounted on the top of the support base (41). A synchronization ring (62) is fixedly provided on the top of the guide sleeve (61). The upper surface of the synchronization ring (62) is in contact with the bottom surface of the outer edge (52). A spring (64) is provided between the synchronization ring (62) and the support base (41).

5. A riveting device for manufacturing a distribution box according to claim 4, characterized in that: The multiple guide grooves (43) are arranged in a circumferential array, and the horizontal projection of the guide grooves (43) is along the radial direction of the support (41).

6. A riveting device for manufacturing a distribution box according to claim 3, characterized in that: When clamped, the multiple clamping blocks (51) are assembled into a complete cone, and the clamping surfaces of the multiple clamping blocks (51) are in contact with the surface of the bolt to be pressed when clamped.

7. A riveting device for manufacturing a distribution box according to claim 5, characterized in that: The bottom surface of the outer edge (52) is provided with a connecting groove (54). The horizontal projection direction of the connecting groove (54) is consistent with the horizontal projection direction of the guide groove (43). The synchronous ring (62) is provided with a connecting strip (63) at the position of each connecting groove (54). The connecting strip (63) slides with the connecting groove (54).

8. A riveting device for manufacturing a distribution box according to claim 4, characterized in that: The top of the support base (41) is provided with an annular groove (44) for limiting the sliding stroke of the guide sleeve (61).

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