A pre-bending riveting mechanism

Abstract

This utility model relates to the field of workpiece riveting technology, and in particular to a pre-bending riveting mechanism, including a base, a conveying device, a pre-pressing device, a pre-folding device, and a riveting device. The pre-pressing device, the pre-folding device, and the riveting device are arranged sequentially along the conveying direction of the conveying device. The riveting device includes a slide, a limiting block, a riveting block, and a first longitudinal cylinder. The slide is slidably disposed on the top of the base, and its starting end is connected to the piston rod of the first longitudinal cylinder. The riveting block is disposed at the top end of the slide, and the end of the riveting block has multiple riveting protrusions. The limiting block is disposed on the top of the riveting block, and its starting end is flush with the starting end of the riveting block. The length of the limiting block is greater than the length of the riveting block, and the end of the limiting block has multiple limiting grooves. By setting the limiting block, the terminals can be limited during the riveting process to prevent the terminals from shifting during the riveting process, ensuring the riveting quality, and thus ensuring the yield rate of electronic connector assembly.

Description

Technical Field

[0001] This utility model relates to the field of workpiece riveting technology, and in particular to a pre-bending riveting mechanism. Background Technology

[0002] Electronic connectors are widely used in various industries such as electronics and communications. With technological advancements and social development, higher demands are being placed on the assembly of electronic connectors. Current connectors are assembled from plastic parts and terminals. During assembly, the terminals are riveted into the plastic parts using riveting equipment.

[0003] During the riveting process, the terminals are prone to misalignment, which can lead to improper riveting and affect the yield rate of electronic connector assembly. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A pre-bending and riveting mechanism includes a base, a conveying device, a pre-pressing device, a pre-folding device, and a riveting device. The conveying device, pre-pressing device, pre-folding device, and riveting device are all located on the top of the base, and are arranged sequentially along the conveying direction of the conveying device. The riveting device includes a slide, a limiting block, a riveting block, and a first longitudinal cylinder. The slide is slidably located on the top of the base, and its starting end is connected to the piston rod of the first longitudinal cylinder. The riveting block is located at the top end of the slide, and the end of the riveting block has multiple riveting protrusions. The limiting block is located on the top of the riveting block, and its starting end is flush with the starting end of the riveting block. The length of the limiting block is greater than the length of the riveting block, and the end of the limiting block has multiple limiting grooves.

[0006] As a further embodiment of this utility model: the conveying device includes a conveying seat, a pusher plate and a transverse cylinder. The top of the conveying seat is provided with two limiting bosses spaced apart, and a conveying channel is formed between the two limiting bosses. Three slots are opened on one of the limiting bosses. A first sliding groove is opened in the conveying seat and communicates with the conveying channel. The pusher plate is slidably arranged in the first sliding groove, and its starting end is connected to the piston rod of the transverse cylinder. Several mounting slots are opened on the top of the pusher plate. A spring is provided in the mounting slot. A pusher block is provided at the upper end of the spring. The top of the pusher block is provided with a pusher part in a right-angle shape, and the pusher part protrudes from the first sliding groove.

[0007] As a further embodiment of this utility model, it also includes a positioning device. The number of positioning devices is three. The three positioning devices are set on the machine base and arranged sequentially along the conveying direction of the conveying device. The positioning device includes a positioning block and a second longitudinal cylinder. The positioning block is slidably set in the slot, and its starting end is connected to the piston rod of the second longitudinal cylinder. The end of the positioning block is provided with a positioning groove.

[0008] As a further embodiment of this utility model: the pre-compression device includes a pre-compression block and a third longitudinal cylinder. The pre-compression block is slidably mounted on the machine base, and its starting end is connected to the piston rod of the third longitudinal cylinder. A pre-compression groove is provided at the end of the pre-compression block.

[0009] As a further embodiment of this utility model: the pre-folding device includes a fourth longitudinal cylinder, a vertical cylinder, a pre-folding block, a support plate, a pressure block, a guide block, a mounting base, and a drive assembly. A second sliding groove is provided on the support plate. The pre-folding block is slidably disposed in the second sliding groove, and its starting end is connected to the piston rod of the fourth longitudinal cylinder. The vertical cylinder is disposed at the upper end of the support plate. The pressure block is slidably disposed on the support plate, and its upper end is connected to the piston rod of the vertical cylinder. The end of the pre-folding block is provided with multiple first pre-folding protrusions, and the lower end of the pressure block is provided with multiple second pre-folding protrusions. The number of second pre-folding protrusions is the same as that of the first pre-folding protrusions, and their shapes are all right-angled trapezoids. The mounting base is disposed below the pressure block, and a third sliding groove is provided on the mounting base. The guide block is slidably disposed in the third sliding groove, and multiple guide grooves are provided at the upper end of the guide block. The drive assembly is disposed in the base, and the output end of the drive assembly is connected to the lower end of the guide block.

[0010] As a further embodiment of this utility model: the openings of both the pre-compression groove and the limiting groove are funnel-shaped.

[0011] As a further embodiment of this utility model: the drive assembly includes a fifth longitudinal cylinder, a fixed block and a transmission block. The fixed block has a fourth sliding groove, the transmission block is slidably disposed in the fourth sliding groove, and its starting end is connected to the piston rod of the fifth longitudinal cylinder. The transmission block has an inclined groove, the guide block has a transmission groove, the transmission block passes through the transmission groove, and a transmission rod is disposed in the transmission groove. The transmission rod passes through the inclined groove.

[0012] As a further embodiment of this utility model: a partition is provided inside the base, which divides the space inside the base into a first chamber and a second chamber. The drive component is located in the first chamber, and a controller is located in the second chamber. A recessed step is provided on the inner bottom wall of the base near the end of the partition. A first drain outlet communicating with the recessed step is provided on the front side of the base, and a second drain outlet is provided on the bottom of the base on one side of the partition.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting a limiting block, this utility model can limit the terminal during the riveting process, avoid the terminal from shifting during the riveting process, ensure the riveting quality, and thus ensure the yield rate of electronic connector assembly.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the pre-compression block structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the pre-folded block structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the guide groove part of this utility model.

[0020] Figure 5 This is a schematic diagram of the inclined groove part of this utility model.

[0021] Figure 6 This is a schematic diagram of the conveyor seat structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the pusher plate part of this utility model.

[0023] Figure 8 This is a schematic diagram of the riveting block part of this utility model.

[0024] Figure 9 This is a schematic diagram of the positioning block part of this utility model.

[0025] Figure 10 This is a schematic diagram of the partition structure of this utility model.

[0026] In the diagram: 1. Base, 2. Conveying device, 3. Pre-compression device, 4. Pre-folding device, 5. Riveting device, 6. Positioning device, 11. Partition, 12. First chamber, 13. Second chamber, 14. Controller, 15. Sinking step, 16. First drain outlet, 17. Second drain outlet, 21. Conveying seat, 22. Pusher plate, 23. Horizontal cylinder, 24. Limiting boss, 25. Slot, 26. First chute, 27. Mounting groove, 28. Pusher block, 29. Pusher section, 31. Pre-compression block, 32. Third longitudinal cylinder, 33. Pre-compression groove, 41. Fourth longitudinal cylinder, 42. Vertical cylinder, 43. Pre-folding block, 44. Support plate, 45. Pressing block. 46. ​​Guide block; 47. Mounting seat; 48. Second slide groove; 49. First pre-folding protrusion; 410. Second pre-folding protrusion; 411. Third slide groove; 412. Guide groove; 413. Fifth longitudinal cylinder; 414. Fixing block; 415. Transmission block; 416. Fourth slide groove; 417. Inclined groove; 418. Transmission groove; 419. Transmission rod; 51. Slide seat; 52. Limiting block; 53. Riveting block; 54. First longitudinal cylinder; 55. Riveting protrusion; 56. Limiting groove; 61. Positioning block; 62. Second longitudinal cylinder; 63. Positioning groove. Detailed Implementation

[0027] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please see Figures 1-10 In this embodiment of the present invention, a pre-bending and riveting mechanism includes a base 1, a conveying device 2, a pre-pressing device 3, a pre-folding device 4, and a riveting device 5. The conveying device 2, the pre-pressing device 3, the pre-folding device 4, and the riveting device 5 are all disposed on the top of the base 1, and are arranged sequentially along the conveying direction of the conveying device 2. The riveting device 5 includes a slide 51, a limiting block 52, a riveting block 53, and a first longitudinal cylinder 54. The slide 51 is slidably disposed on the top of the base 1, and its starting end is connected to the piston rod of the first longitudinal cylinder 54. The riveting block 53 is disposed at the top end of the slide 51, and the end of the riveting block 53 is provided with multiple riveting protrusions 55. The limiting block 52 is disposed on the top of the riveting block 53, and the starting end of the limiting block 52 is flush with the starting end of the riveting block 53. The length of the limiting block 52 is greater than the length of the riveting block 53, and the end of the limiting block 52 is provided with multiple limiting grooves 56.

[0029] When the mechanism is in operation, the conveying device 2 drives the plastic part with terminals to pass through the pre-pressing device 3, the pre-folding device 4 and the riveting device 5 in sequence. The plastic part with terminals is subjected to the pre-pressing, pre-folding and riveting processes in sequence. In the riveting process, the first longitudinal cylinder 54 drives the slide 51 to move toward the plastic part. Since the length of the limiting block 52 is greater than the length of the riveting block 53, the limiting block 52 contacts the terminal before the riveting block 53 and restricts the terminal through the limiting groove 56 to prevent the terminal from shifting. Then the first longitudinal cylinder 54 drives the slide 51 to continue moving. The riveting protrusion 55 on the riveting block 53 pushes the terminal and rivets the terminal into the plastic part.

[0030] The conveying device 2 includes a conveying seat 21, a pusher plate 22, and a transverse cylinder 23. The top of the conveying seat 21 is provided with two limiting bosses 24 spaced apart, forming a conveying channel between the two limiting bosses 24. One of the limiting bosses has three slots 25. The conveying seat 21 has a first sliding groove 26, which communicates with the conveying channel. The pusher plate 22 is slidably disposed in the first sliding groove 26, and its starting end is connected to the piston rod of the transverse cylinder 23. The top of the pusher plate has several mounting slots 27, and a spring (not shown in the figure) is provided in the mounting slot 27. The upper end of the spring (not shown in the figure) is provided with a pusher block 28, and the top of the pusher block 28 is provided with a right-angled pusher part 29, which protrudes from the first sliding groove 26. During the conveying process, the operator places the plastic part with terminals in the conveyor channel. The transverse cylinder 23 drives the pusher plate 22 to move back and forth in the first slide groove 26. The pusher part 29 on the pusher block 28 pushes the plastic part to move in the conveying direction (i.e., towards the end of the conveyor seat 21). It should be noted that the pusher part 29 is right-angled. When the pusher plate 22 moves in the opposite direction to the conveying direction, the inclined surface of the pusher part 29 contacts the plastic part, causing the pusher part 29 to move down and squeeze the spring (not shown in the figure), thereby preventing the plastic part from moving in the opposite direction to the conveying direction. When the pusher plate 22 moves in the conveying direction, the pusher part 29 protrudes out of the first slide groove 26 under the action of the spring (not shown in the figure), so that the plane of the pusher part 29 contacts the plastic part and pushes the plastic part to move in the conveying direction.

[0031] It also includes positioning devices 6, of which there are three. The three positioning devices 6 are set on the base 1 and arranged sequentially along the conveying direction of the conveying device 2. The positioning device 6 includes a positioning block 61 and a second longitudinal cylinder 62. The positioning block 61 is slidably set in the slot 25, and its starting end is connected to the piston rod of the second longitudinal cylinder 62. The end of the positioning block 61 is provided with a positioning groove 63. It should be noted that the three positioning devices 6 are respectively arranged opposite to the pre-pressing device 3, the pre-folding device 4, and the riveting device 5. When the pushing part 29 pushes the plastic part to the pre-pressing device 3, the pre-folding device 4, and the riveting device 5, the second longitudinal cylinder 62 drives the positioning block 61 to move, and fixes the plastic part through the positioning groove 63, thereby preventing the plastic part from shifting during the pre-pressing, pre-folding and riveting processes.

[0032] The pre-pressing device 3 includes a pre-pressing block 31 and a third longitudinal cylinder 32. The pre-pressing block 31 is slidably mounted on the machine base 1, and its starting end is connected to the piston rod of the third longitudinal cylinder 32. A pre-pressing groove 33 is formed at the end of the pre-pressing block 31. In the pre-pressing process, the pre-pressing block 31 moves under the drive of the third longitudinal cylinder 32, causing the terminal to extend into the pre-pressing groove 33, and then pushing the terminal to embed into the plastic part, thereby improving the tightness of the connection between the terminal and the plastic part.

[0033] The pre-folding device 4 includes a fourth longitudinal cylinder 41, a vertical cylinder 42, a pre-folding block 43, a support plate 44, a pressure block 45, a guide block 46, a mounting base 47, and a drive assembly. A second sliding groove 48 is provided on the support plate 44. The pre-folding block 43 is slidably disposed within the second sliding groove 48, and its starting end is connected to the piston rod of the fourth longitudinal cylinder 41. The vertical cylinder 42 is disposed at the upper end of the support plate 44. The pressure block 45 is slidably disposed on the support plate 44, and its upper end is connected to the piston rod of the vertical cylinder 42. The end of the pre-folding block 43 is provided with… Multiple first pre-folding protrusions 49 are provided, and multiple second pre-folding protrusions 410 are provided at the lower end of the pressure block 45. The number of second pre-folding protrusions 410 is the same as that of the first pre-folding protrusions 49, and their shapes are all right-angled trapezoids. The mounting base 47 is located below the pressure block 45, and a third sliding groove 411 is provided on the mounting base 47. The guide block 46 is slidably disposed in the third sliding groove 411, and multiple guide grooves 412 are provided at the upper end of the guide block 46. The drive assembly is disposed in the machine base 1, and the output end of the drive assembly is connected to the lower end of the guide block 46. In the pre-folding process, the drive assembly drives the guide block 46 to move upward, and the vertical cylinder 42 drives the pressure block 45 to move downward. The second pre-folding protrusions 410 push the terminal into the guide grooves 412. Then, the fourth vertical cylinder 41 drives the pre-folding block 43 to move towards the plastic part, and the first pre-folding protrusions 49 push the terminal to 90°.

[0034] In order to allow the terminals to be smoothly inserted into the pre-pressure groove 33 and the limiting groove 56, the openings of the pre-pressure groove 33 and the limiting groove 56 are both funnel-shaped.

[0035] The drive assembly includes a fifth longitudinal cylinder 413, a fixed block 414, and a transmission block 415. The fixed block 414 has a fourth sliding groove 416. The transmission block 415 is slidably disposed within the fourth sliding groove 416, and its starting end is connected to the piston rod of the fifth longitudinal cylinder 413. The transmission block 415 has an inclined groove 417, and the guide block 46 has a transmission groove 418. The transmission block 415 passes through the transmission groove 418, and a transmission rod 419 is disposed within the transmission groove 418. The transmission rod 419 passes through the inclined groove 417. During operation, the fifth longitudinal cylinder 413 drives the transmission block 415 to reciprocate along the fourth sliding groove 416, causing the transmission rod 419 to move along the inclined groove 417, thereby pushing the guide block 46 to move up and down.

[0036] The base 1 is equipped with a partition 11, which divides the space inside the base 1 into a first chamber 12 and a second chamber 13. The drive assembly is located in the first chamber 12, and the controller 14 is located in the second chamber 13. A recessed step 15 is provided on the inner bottom wall of the base 1 near the end of the partition 11. A first drain outlet 16 communicating with the recessed step 15 is provided on the front side of the base 1, and a second drain outlet 17 is provided on the bottom of the base 1 on one side of the partition 11. During the operation of the fifth longitudinal cylinder 413, water vapor is generated. This water vapor will flow into the second chamber 13 through the gap, thereby affecting the operation of the controller 14. Therefore, by setting the recessed step 15, the first drain outlet 16, and the second drain outlet 17, the water vapor is allowed to flow out through the recessed step 15, the first drain outlet 16, and the second drain outlet 17, thus preventing the water vapor from affecting the operation of the controller 14.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A pre-bending and riveting mechanism, characterized in that, It includes a base, a conveying device, a pre-pressing device, a pre-folding device, and a riveting device. The conveying device, pre-pressing device, pre-folding device, and riveting device are all located on the top of the base. The pre-pressing device, pre-folding device, and riveting device are arranged sequentially along the conveying direction of the conveying device. The riveting device includes a slide, a limiting block, a riveting block, and a first longitudinal cylinder. The slide is slidably mounted on the top of the machine base, and its starting end is connected to the piston rod of the first longitudinal cylinder. The riveting block is mounted on the top end of the slide, and the end of the riveting block is provided with multiple riveting protrusions. The limiting block is mounted on the top of the riveting block, and the starting end of the limiting block is flush with the starting end of the riveting block. The length of the limiting block is greater than the length of the riveting block, and the end of the limiting block is provided with multiple limiting grooves.

2. The pre-bending and riveting mechanism according to claim 1, characterized in that: The conveying device includes a conveying seat, a pusher plate, and a transverse cylinder. The top of the conveying seat is provided with two limiting bosses spaced apart, forming a conveying channel between the two limiting bosses. One of the limiting bosses has three slots. The conveying seat has a first sliding groove that communicates with the conveying channel. The pusher plate is slidably disposed in the first sliding groove, and its starting end is connected to the piston rod of the transverse cylinder. The top of the pusher plate has several mounting slots, and springs are provided in the mounting slots. The upper end of the springs has a pusher block, and the top of the pusher block has a pusher part in a right-angle shape that protrudes from the first sliding groove.

3. The pre-bending and riveting mechanism according to claim 2, characterized in that: It also includes a positioning device, of which there are three. The three positioning devices are set on the machine base and arranged sequentially along the conveying direction of the conveying device. The positioning device includes a positioning block and a second longitudinal cylinder. The positioning block is slidably set in the slot, and its starting end is connected to the piston rod of the second longitudinal cylinder. The end of the positioning block is provided with a positioning groove.

4. The pre-bending and riveting mechanism according to claim 1, characterized in that: The pre-compression device includes a pre-compression block and a third longitudinal cylinder. The pre-compression block is slidably mounted on the machine base, and its starting end is connected to the piston rod of the third longitudinal cylinder. A pre-compression groove is provided at the end of the pre-compression block.

5. The pre-bending and riveting mechanism according to claim 1, characterized in that: The pre-folding device includes a fourth longitudinal cylinder, a vertical cylinder, a pre-folding block, a support plate, a pressure block, a guide block, a mounting base, and a drive assembly. A second groove is provided on the support plate. The pre-folding block is slidably disposed within the second groove, and its starting end is connected to the piston rod of the fourth longitudinal cylinder. The vertical cylinder is located at the upper end of the support plate. The pressure block is slidably disposed on the support plate, and its upper end is connected to the piston rod of the vertical cylinder. Multiple first pre-folding protrusions are provided at the end of the pre-folding block, and multiple second pre-folding protrusions are provided at the lower end of the pressure block. The number of second pre-folding protrusions is the same as the number of first pre-folding protrusions, and their shapes are all right-angled trapezoids. The mounting base is located below the pressure block, and a third groove is provided on the mounting base. The guide block is slidably disposed within the third groove, and multiple guide grooves are provided at the upper end of the guide block. The drive assembly is located within the machine base, and its output end is connected to the lower end of the guide block.

6. The pre-bending and riveting mechanism according to claim 4, characterized in that: Both the pre-compression groove and the limiting groove have flared openings.

7. The pre-bending and riveting mechanism according to claim 5, characterized in that: The drive assembly includes a fifth longitudinal cylinder, a fixed block, and a transmission block. The fixed block has a fourth sliding groove. The transmission block is slidably disposed in the fourth sliding groove, and its starting end is connected to the piston rod of the fifth longitudinal cylinder. The transmission block has an inclined groove, and the guide block has a transmission groove. The transmission block passes through the transmission groove, and a transmission rod is disposed in the transmission groove. The transmission rod passes through the inclined groove.

8. The pre-bending and riveting mechanism according to claim 7, characterized in that: The base is equipped with a partition that divides the space inside the base into a first chamber and a second chamber. The drive assembly is located in the first chamber, and the controller is located in the second chamber. A recessed step is provided on the inner bottom wall of the base near the end of the partition. A first drain outlet communicating with the recessed step is opened on the front side of the base, and a second drain outlet is opened on the bottom of the base on one side of the partition.

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