Contact piece riveting device

Abstract

The utility model discloses a contact piece riveting device. The contact piece riveting device comprises a base, a workpiece positioning seat and a flexible punch. And the workpiece positioning seat is mounted on the base. And the flexible punch is arranged above the workpiece positioning seat and is used for extruding a rivet for connecting the workpiece with the contact piece to realize riveting. The flexible punch comprises a punch body and a flexible punching part. And the flexible punching part made of an elastic material is fixed at the bottom end of the punch main body. The contact piece on the workpiece is riveted through the flexible stamping part, so that the contact piece can be completely attached to the workpiece, the operation difficulty is reduced, the working efficiency is improved, the working intensity of workers is greatly reduced, and the working quality is improved. Meanwhile, the flexible stamping part serves as a consumption part to be continuously manufactured and replaced, and the hardness of the flexible stamping part can be changed by replacing glue, so that the requirements of actual workpieces are met; the punch body can be detached and reused, so that the punch is simple and reliable in structure and low in maintenance cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of riveted parts, and in particular relates to a contact sheet riveting device. Background Art

[0002] like Figure 1 As shown, the shielding shell workpiece includes a shell body A and a contact piece B fixed by riveting; riveting is a commonly used connection method in mechanical processing. When the existing riveting method rivets the shielding shell workpiece through a rivet head, the connection between the shell body and the contact piece often does not fit, which leads to a loose connection between the shell body and the contact piece, and the possibility of falling off, which seriously affects the riveting quality. Summary of the invention

[0003] The utility model aims to provide a contact sheet riveting device.

[0004] The utility model provides a contact sheet riveting device comprising a base, a workpiece positioning seat and a flexible punch. The workpiece positioning seat is mounted on the base. The flexible punch is arranged above the workpiece positioning seat and is used to squeeze the rivet connecting the workpiece and the contact sheet to achieve riveting. The flexible punch comprises a punch body and a flexible stamping part. The flexible stamping part made of elastic material is fixed to the bottom end of the punch body.

[0005] The workpiece positioning seat includes a positioning main body block; a positioning groove is provided on the top of the positioning main body block, and the bottom surface shape of the positioning groove matches the shape of the outer side surface of the workpiece on which the contact piece is installed. A clearance groove is provided on the bottom surface of the positioning groove. The position of the clearance groove on the bottom surface of the positioning groove matches the position of the contact piece installed on the workpiece. The clearance groove is located directly below the flexible punch and is used to provide space for the protruding part of the contact piece; the riveting position on the workpiece is aligned with the bottom end of the flexible punch.

[0006] Preferably, the clearance groove penetrates the positioning main body block from top to bottom.

[0007] Preferably, the workpiece positioning seat also includes a mounting beam; one end of the mounting beam is fixed to the positioning main block; a mounting hole is opened on the side of the top surface of the base; a threaded hole connected to the top of the mounting hole is opened at the top of the base; one end of the mounting beam passes through the mounting hole; a locking bolt is threadedly connected to the threaded hole, and the bottom end of the locking bolt is against the top of the mounting beam.

[0008] Preferably, the base comprises a bottom plate and a vertical plate, the bottom of the vertical plate is fixed to the middle of the top surface of the bottom plate; the mounting holes and the threaded holes are provided on the vertical plate.

[0009] Preferably, the punch body is made of metal material.

[0010] Preferably, the flexible stamping part is made of a polymer elastic material with a Shore hardness of 40 to 50 HA.

[0011] Preferably, the flexible stamping part includes a cured elastic glue and a restraining sleeve. One end of the restraining sleeve is sleeved on the bottom end of the punch body, and the other end of the restraining sleeve extends out of the bottom end of the punch body, so that the restraining sleeve surrounds and forms a glue accommodating cavity; the cured elastic glue formed by the curing of the glue is arranged in the restraining sleeve.

[0012] Preferably, the restraining tube sleeve is a heat shrink tube.

[0013] Preferably, the Shore hardness of the cured elastic adhesive is 40-50 HA.

[0014] Preferably, the riveting device further comprises a punching drive assembly for driving the flexible punch to perform lifting and lowering movements.

[0015] Preferably, the stamping drive assembly adopts a cylinder.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model performs riveting operation on the contact piece on the workpiece through the flexible stamping part, so that the contact piece can completely fit the workpiece, which reduces the difficulty of operation, improves work efficiency, greatly reduces the work intensity of workers, and improves the work quality.

[0018] 2. The flexible stamping part of the utility model is continuously produced and replaced as a consumable part, and the hardness of the flexible stamping part can be changed by replacing the glue to meet the needs of the actual workpiece; at the same time, the punch body of the utility model is detachable and reusable, making the structure of the utility model simple, reliable and low in maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the shielding shell workpiece;

[0020] Figure 2 This is a schematic diagram of the overall structure of Example 1 of the utility model.

[0021] Figure 3 This is a schematic diagram of the flexible punch structure of Example 1 of the utility model.

[0022] Figure 4 This is a schematic diagram of the workpiece positioning seat structure of Example 1 of the utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the flexible punch portion of Example 2 of the utility model.

[0024] Figure numerals: 1. workpiece positioning seat; 2. flexible punch; 3. bottom plate; 4. vertical plate; 1-1. positioning main body block; 1-2. mounting beam; 2-1. punch body; 2-2. flexible stamping part. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] like Figure 2 As shown, a contact sheet riveting device includes a base, a workpiece positioning seat 1, a flexible punch 2 and a stamping drive assembly (not shown in the figure). The base includes a bottom plate 3 and a vertical plate 4. The bottom of the vertical plate 4 is fixed to the middle of the top surface of the bottom plate 3. The workpiece positioning seat 1 is installed on the top of the vertical plate 4. The flexible punch 2 is arranged above the workpiece positioning seat 1 and is driven by the stamping drive assembly to perform lifting and lowering movements. In some embodiments, the stamping drive assembly uses a cylinder.

[0028] like Figure 3 As shown, the flexible punch 2 includes a punch body 2-1 and a flexible stamping portion 2-2. The punch body 2-1 is made of metal material. The flexible stamping portion 2-2 is fixed to the bottom end of the punch body 2-1. The flexible stamping portion 2-2 is made of elastic material, preferably a polymer elastic material (such as rubber), and more preferably a polymer elastic material with a Shore hardness of 40 to 50 HA.

[0029] like Figure 4 As shown, the workpiece positioning seat 1 includes a positioning main body block 1-1 and a mounting beam 1-2. One end of the mounting beam 1-2 is fixed to the positioning main body block 1-1. A mounting hole is provided on the side of the top surface of the vertical plate 4. A threaded hole connected to the top of the mounting hole is provided at the top of the vertical plate 4. One end of the mounting beam 1-2 passes through the mounting hole. A locking bolt is threadedly connected to the threaded hole. The bottom end of the locking bolt abuts against the top of the mounting beam 1-2, so that the position of the workpiece positioning seat 1 is fixed.

[0030] A positioning groove is provided on the top of the positioning main block 1-1. The shape of the bottom surface of the positioning groove matches the shape of the outer surface of the workpiece on which the contact piece is installed. A clearance groove is provided on the bottom surface of the positioning groove. The clearance groove runs through the positioning main block 1-1 from top to bottom. The position of the clearance groove on the bottom surface of the positioning groove matches the position of the contact piece installed on the workpiece. The clearance groove is located directly below the flexible punch 2 and is used to provide space for the protruding part of the contact piece. When the workpiece is placed on the positioning groove, the position is determined and remains stationary; a rivet structure aligned with the bottom end of the flexible punch 2 is provided on the workpiece. The rivet structure is integrally formed with the zinc-copper alloy workpiece; a rivet hole corresponding to the rivet structure is provided on the contact piece. After the rivet structure passes through the rivet hole on the contact piece, it is deformed under the extrusion of the flexible punch to achieve riveting fixation of the contact piece.

[0031] The working principle of the utility model is as follows:

[0032] Place the workpiece on the positioning groove of the workpiece positioning seat 1, and the outer side surface of the workpiece matches the bottom surface of the positioning groove to keep the workpiece still; drive the flexible punch 2 to move up and down through the stamping drive assembly. During the downward movement of the flexible punch 2, the flexible stamping part 2-2 of the flexible punch 2 contacts the contact piece on the workpiece and squeezes the contact piece downward, so that the contact piece can completely fit the workpiece to complete the riveting.

[0033] Example 2

[0034] A contact sheet riveting device, the difference between this embodiment and embodiment 1 is only that: the flexible stamping portion 2-2 is different;

[0035] like Figure 5 As shown, in this embodiment, the flexible stamping part 2-2 includes a cured elastic glue 2-2-1 and a constraint sleeve 2-2-2. One end of the constraint sleeve 2-2-2 is sleeved on the bottom end of the punch body 2-1. The other end of the constraint sleeve 2-2-2 extends out of the bottom end of the punch body 2-1, so that the constraint sleeve 2-2-2 surrounds and forms a glue containing cavity. The cured elastic glue 2-2-1 is arranged in the constraint sleeve 2-2-2. The constraint sleeve 2-2-2 can be made of a heat shrink tube or other materials that are fixed to the punch body 2-1. The process of forming the cured elastic glue 2-2-1 is: after the bottom end of the punch body 2-1 is facing upwards, liquid glue is added to the opening of the glue containing cavity, and the glue is waited for to cure into a solid elastic material.

[0036] By replacing the glue with different hardness after curing, the flexible stamping part 2-2 with different hardness can be replaced according to the actual workpiece requirements. In addition, this structure allows the flexible stamping part 2-2 and the punch body 2-1 to be fixed without the use of connecting parts such as screws; the flexible stamping part 2-2 can be continuously produced and replaced as a consumable part, while the punch body 2-1 can be reused.

[0037] In some embodiments, the glue used to prepare the cured elastic glue 2-2-1 preferably has a Shore hardness of 40 to 50 HA after curing, such as the glue model Schminda Hard 8008.

Claims

1. A contact sheet riveting device, characterized in that: The invention comprises a base, a workpiece positioning seat (1) and a flexible punch (2); the workpiece positioning seat (1) is installed on the base; the flexible punch (2) is arranged above the workpiece positioning seat (1); the flexible punch (2) comprises a punch body (2-1) and a flexible punching part (2-2); the flexible punching part (2-2) made of elastic material is fixed to the bottom end of the punch body (2-1); The workpiece positioning seat (1) comprises a positioning main body block; a positioning groove is provided on the top of the positioning main body block, the bottom surface shape of the positioning groove matches the shape of the outer side surface of the workpiece on which the contact piece is installed; a clearance groove is provided on the bottom surface of the positioning groove; the position of the clearance groove on the bottom surface of the positioning groove matches the position of the contact piece installed on the workpiece; the clearance groove is located directly below the flexible punch (2).

2. A contact piece riveting device according to claim 1, characterized in that: The workpiece positioning seat (1) also includes a mounting beam; one end of the mounting beam is fixed to the positioning main body block; a mounting hole is provided on the side of the top surface of the base; a threaded hole connected to the top of the mounting hole is provided at the top of the base; one end of the mounting beam passes through the mounting hole; a locking bolt is threadedly connected to the threaded hole, and the bottom end of the locking bolt abuts against the top of the mounting beam.

3. A contact piece riveting device according to claim 2, characterized in that: The base comprises a bottom plate (3) and a vertical plate (4); the bottom of the vertical plate (4) is fixed to the middle of the top surface of the bottom plate (3); and mounting holes and threaded holes are provided on the vertical plate (4).

4. A contact piece riveting device according to claim 1, characterized in that: The punch body (2-1) is made of metal material.

5. The contact piece riveting device according to claim 1, characterized in that: The flexible stamping part (2-2) is made of a polymer elastic material with a Shore hardness of 40-50 HA.

6. A contact piece riveting device according to claim 1, characterized in that: The flexible stamping part (2-2) comprises a cured elastic glue (2-2-1) and a restraining sleeve (2-2-2); one end of the restraining sleeve (2-2-2) is sleeved on the bottom end of the punch body (2-1), and the other end of the restraining sleeve (2-2-2) extends out of the bottom end of the punch body (2-1), so that the restraining sleeve (2-2-2) surrounds and forms a glue accommodating cavity; the cured elastic glue (2-2-1) is arranged in the restraining sleeve (2-2-2).

7. A contact piece riveting device according to claim 6, characterized in that: The restraining pipe sleeve (2-2-2) is a heat shrinkable tube.

8. The contact piece riveting device according to claim 6, characterized in that: The Shore hardness of the cured elastic adhesive (2-2-1) is 40-50 HA.

9. The contact piece riveting device according to claim 1, characterized in that: The clearance groove passes through the positioning main body block from top to bottom.

10. The contact piece riveting device according to claim 1, characterized in that: The riveting device also includes a punching drive assembly, which is used to drive the flexible punch (2) to perform lifting movement.

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