CN219418835U

CN219418835U - Riveting device for silver contacts

Info

Publication number: CN219418835U
Application number: CN202320839055.6U
Authority: CN
Inventors: 陈财团; 邓邦志; 陈深华
Original assignee: Dongguan Youneng Electronics Co ltd
Current assignee: Dongguan Youneng Electronics Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-07-25
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a riveting device for silver contacts, which relates to the technical field of touch bridge production and comprises a hydraulic cylinder, wherein a lower pressing plate is arranged at the telescopic end of the hydraulic cylinder, a plurality of riveting heads are arranged at the bottom end of the lower pressing plate, a plurality of positioning columns are connected to the outer side of the riveting heads at the bottom end of the lower pressing plate, a riveting jig is detachably fixed to the upper part of a workbench, copper sheets and silver contacts are respectively placed in the riveting jig, a plurality of positioning grooves are formed in the upper part of the workbench and positioned on the two sides of the riveting jig, and a riveting buffer structure is fixed in the positioning grooves. The riveting device for the silver contact is provided with a riveting buffer structure for buffering vertical impact force, in the riveting process, one part of the impact force generated by the riveting head acts on the silver contact to rivet the silver contact and the copper sheet, and the other part of the impact force is counteracted by the riveting buffer mechanism, so that the silver contact is prevented from being damaged due to overlarge impact force, and the riveting quality is improved.

Description

Riveting device for silver contacts

Technical Field

The utility model relates to the technical field of contact bridge production, in particular to a riveting device for silver contacts.

Background

The contact bridge is an electronic component commonly used in contactors, circuit breakers, temperature controllers and switches, and is composed of copper sheets and silver contacts, the silver contacts and the copper sheets are fixed through riveting technology, an existing device for riveting the silver contacts is shown as a punch buffering mechanism (CN 211707924U) for riveting the silver contacts in the patent, in the patent technology, the adopted buffering structure can reduce transverse acting force, and in the riveting process, when the vertical impact force acts on the surface of the silver contacts too much, damage to the silver contacts is caused, and the riveting quality is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a riveting device for silver contacts, which solves the problems in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the riveting device of the silver contact comprises a rack and a hydraulic cylinder arranged at the top end of the rack, wherein the telescopic end of the hydraulic cylinder extends to the inside of the rack and is provided with a lower pressing plate, the bottom end of the lower pressing plate is provided with a plurality of riveting heads, and the bottom end of the lower pressing plate is positioned at the outer side of the riveting heads and is connected with a plurality of positioning columns;

the bottom of frame is provided with the workstation, the upper portion detachable of workstation is fixed with the riveting tool, copper sheet, silver contact have been placed respectively to the inside of riveting tool, a plurality of constant head tank has been seted up on the upper portion of workstation and the both sides that lie in the riveting tool, the inside of constant head tank is fixed with riveting buffer structure.

Further, the top of frame still sliding connection has the guide post, the bottom and the holding down plate fixed connection of guide post.

Further, the positions of the positioning columns correspond to the positioning grooves, the size is adaptive, the number of the riveting heads is the same as the number of the copper sheets and the silver contacts in the riveting jig, and the positions of the positioning columns correspond to each other.

Further, the first cell body, the second cell body have been seted up respectively to the upper surface of riveting tool, the second cell body sinks in first cell body, the copper sheet is placed in the inside of first cell body, silver contact is placed in the inside of second cell body.

Further, the riveting buffer structure comprises a buffer spring arranged in the positioning groove and a pressure receiving plate connected to the top end of the buffer spring, and the pressure receiving plate moves in the positioning groove.

The utility model provides a riveting device for silver contacts. Compared with the prior art, the method has the following beneficial effects:

the riveting device for the silver contact is provided with a riveting buffer structure for buffering vertical impact force, in the riveting process, one part of the impact force generated by the riveting head acts on the silver contact to rivet the silver contact and the copper sheet, and the other part of the impact force is counteracted by the riveting buffer mechanism, so that the silver contact is prevented from being damaged due to overlarge impact force, and the riveting quality is improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a half cross-sectional view of the present utility model;

FIG. 3 is a schematic structural diagram of the riveting tool according to the present utility model;

fig. 4 is a graph showing the shape change of the silver contact before and after riveting.

In the figure: 1. a frame; 2. a hydraulic cylinder; 3. a lower pressing plate; 4. a riveting head; 5. positioning columns; 6. a work table; 7. riveting jig; 71. a first tank body; 72. a second tank body; 73. copper sheets; 74. a silver contact; 8. a positioning groove; 81. a buffer spring; 82. a pressure receiving plate; 9. and a guide post.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a riveting set of silver contact, including frame 1 and install the pneumatic cylinder 2 on frame 1 top, the telescopic end of pneumatic cylinder 2 extends to the inside of frame 1, and install holding down plate 3, the top of frame 1 still sliding connection has guide post 9, the bottom and the holding down plate 3 fixed connection of guide post 9, guide post 9 and holding down plate 3 synchronous movement, ensure holding down plate 3 at the stability of removal and riveting in-process, a plurality of riveting head 4 is installed to the bottom of holding down plate 3, and the bottom of holding down plate 3 is located the outside of riveting head 4 and is connected with a plurality of reference column 5, the bottom of frame 1 is provided with workstation 6, the upper portion detachable of workstation 6 is fixed with riveting tool 7 (detachable structure is anchor clamps or constant head tank, detachable structure is the known art, the detail is not here), copper sheet 73, silver contact 74's quantity is the same in the holding down plate 3, and the position corresponds, the upper portion of workstation 6 and the both sides are located the riveting tool 8 of riveting tool 7 and are equipped with a plurality of riveting head 8 and are equipped with the constant head 8 at the inside of a plurality of location groove 81, the inside of location groove that is equipped with the damping structure is equipped with at the inside location groove 81 of the riveting tool, the location groove is equipped with the inside of a plurality of location groove 8, the location groove is equipped with the location groove 81 and the inside location groove is equipped with the location groove 81.

Referring to fig. 3, the riveting jig 7 has a first groove 71 and a second groove 72 formed on an upper surface thereof, the second groove 72 is sunk in the first groove 71, the copper sheet 73 is disposed in the first groove 71, and the silver contact 74 is disposed in the second groove 72.

When in use, a plurality of copper sheets 73 and silver contacts 74 are placed in the first groove body 71 and the second groove body 72 (when the silver contacts 74 are not riveted, the state is shown as (a) in fig. 4), and then the riveting jig 7 is fixed on the workbench 6;

during riveting, the hydraulic cylinder 2 pushes the lower pressing plate 3 to move downwards, the riveting head 4 presses down on the silver contact 74, the section of the silver contact 74 on the upper portion of the copper sheet 73 is flattened (the state of the silver contact 74 after riveting is shown in (b) in fig. 4), meanwhile, the positioning column 5 enters the positioning groove 8, and the riveting pressing force is buffered through a riveting buffering structure formed by the buffering spring 81 and the pressure receiving plate 82, so that the silver contact 74 is prevented from being damaged due to excessive riveting.

Claims

1. The riveting device for the silver contact comprises a frame (1) and a hydraulic cylinder (2) arranged at the top end of the frame (1), and is characterized in that the telescopic end of the hydraulic cylinder (2) extends to the inside of the frame (1) and is provided with a lower pressing plate (3), a plurality of riveting heads (4) are arranged at the bottom end of the lower pressing plate (3), and a plurality of positioning columns (5) are connected to the outer side of the riveting heads (4) at the bottom end of the lower pressing plate (3);

the automatic riveting machine is characterized in that a workbench (6) is arranged at the bottom of the frame (1), a riveting jig (7) is detachably fixed on the upper portion of the workbench (6), copper sheets (73) and silver contacts (74) are respectively placed in the riveting jig (7), a plurality of positioning grooves (8) are formed in the upper portion of the workbench (6) and located on two sides of the riveting jig (7), and riveting buffer structures are fixed in the positioning grooves (8).

2. Riveting apparatus for silver contacts according to claim 1, characterized in that the top end of the frame (1) is also slidingly connected with a guiding column (9), the bottom end of the guiding column (9) being fixedly connected with the lower pressure plate (3).

3. The riveting device of the silver contacts according to claim 1, wherein the positioning columns (5) are corresponding to the positioning grooves (8) in position and are matched in size, the number of the riveting heads (4) is the same as the number of copper sheets (73) and silver contacts (74) in the riveting jig (7), and the positions of the riveting heads are corresponding to each other.

4. The riveting device of the silver contact according to claim 1, wherein a first groove body (71) and a second groove body (72) are respectively formed on the upper surface of the riveting jig (7), the second groove body (72) is sunk in the first groove body (71), the copper sheet (73) is placed in the first groove body (71), and the silver contact (74) is placed in the second groove body (72).

5. The riveting apparatus of silver contacts according to claim 1, wherein the rivet buffer structure comprises a buffer spring (81) installed inside the positioning groove (8) and a pressure receiving plate (82) connected to the top end of the buffer spring (81), the pressure receiving plate (82) moving inside the positioning groove (8).