Press riveting device for rivets on outer side of workpiece

Abstract

The utility model discloses a press riveting device for a rivet outside a workpiece, which comprises a base, a locking mechanism and a press riveting mechanism, the locking mechanism comprises a central stud, a gland and a locking nut, the central stud is fixedly arranged at one end of the base, the top end of the central stud penetrates through the workpiece and the gland and is connected with the locking nut, and the press riveting mechanism is arranged on the base. The gland abuts against the top of the workpiece. The rivet pressing mechanism comprises a pressing block and a pressing cylinder, the pressing block is arranged at the other end of the base in a sliding mode, the pressing cylinder is installed at the top of the pressing block, an arc-shaped groove is formed in the side, close to the workpiece, of the pressing block and corresponds to the outer side of the workpiece in a protruding mode, and a rivet pressing end is arranged at the bottom of one side of the pressing block and corresponds to a rivet on the outer side of the workpiece. A workpiece is pressed between the gland and the base through the locking nut and the gland, then pressure is transmitted to the pressing block through the counter-pressing cylinder, and therefore rivet pressing is achieved, the problem that an existing rivet pressing device cannot adapt to operation of the workpiece and is hindered is solved, and good practicability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rivet pressing equipment, and particularly relates to a pressing device for rivets on the outer side of a workpiece. Background Technique

[0002] For the riveting of solid rivets, usually two methods are adopted for riveting. The first method is to use a commonly used hydraulic riveting machine on the market to apply hydraulic pressure to the solid rivet to make it deform, and the workpieces to be riveted are riveted together. However, this method is only applicable to workpieces with simple structures. If the workpiece to be riveted has a special structure and is in a narrow and complex operating space, obstacles are likely to appear during the linear movement of the punch of the hydraulic riveting machine, and at this time, riveting cannot be carried out. The second method is to manually knock the rivet, but this method has high technical requirements for operators. If the operation is improper, the rivet is likely to be knocked crooked or deformed. In summary, the above two methods have certain limitations. As Figure 1 shown, during the processing of a workpiece (short bushing), it is necessary to upset the rivet through pressure so that the round nut and the short bushing can be riveted together. There is a circular flange in the middle of the outer side of the short bushing, and the circular flange is close to the rivet. When using a hydraulic riveting machine or manual riveting method, the circular flange will block the force-applying rod, resulting in difficult operation and inability to carry out the riveting work. Content of the Utility Model

[0003] The purpose of the utility model is to provide a pressing device for rivets on the outer side of a workpiece, aiming to solve the above problems.

[0004] The utility model is mainly realized through the following technical solutions:

[0005] A pressing device for rivets on the outer side of a workpiece, comprising a base, a locking mechanism and a pressing mechanism. The locking mechanism and the pressing mechanism are respectively installed at both ends of the base; the locking mechanism includes a central stud, a pressing cover and a locking nut. A central stud is fixedly arranged at one end of the base, and the workpiece is sleeved on the outer side of the central stud. The top end of the central stud passes through the workpiece, the pressing cover and is connected with the locking nut, and the pressing cover abuts against the top of the workpiece; the pressing mechanism includes a pressing block and a pressing cylinder. The pressing block is slidably arranged at the other end of the base, a pressing cylinder is installed on the top of the pressing block, an arc-shaped groove is convexly arranged on the side of the pressing block close to the workpiece corresponding to the outer protrusion of the workpiece, and a pressing end for the rivet on the outer side of the workpiece is arranged at the bottom of one side of the pressing block.

[0006] In order to better realize the utility model, further, it further includes a mounting disc installed at one end of the base. A U-shaped mounting groove is arranged at the top of one end of the base corresponding to the mounting disc; a central stud is fixedly installed in the middle of the mounting disc.

[0007] To better implement the present utility model, further, an embedding groove is provided at the middle of the mounting disc corresponding to the central stud, and the end of the central stud is fixedly connected to the embedding groove by a screw.

[0008] To better implement the present utility model, further, the outer side of the workpiece is fixedly connected to the round nut by a connecting screw, and riveting holes are respectively provided on both sides of the round nut corresponding to the screws, and a plurality of positioning grooves are provided on the circumferential side of the mounting disc corresponding to the connecting screws.

[0009] To better implement the present utility model, further, a pressing block is slidably mounted at the middle of the base, and a plurality of central studs are fixedly provided on the base on the circumferential side of the pressing block.

[0010] To better implement the present utility model, further, a clamping groove is provided at the top of the pressing block corresponding to the pressing cylinder, a plurality of sliding holes are provided on the circumferential side of the pressing block away from the workpiece, and a plurality of guiding columns are correspondingly provided on the base.

[0011] To better implement the present utility model, further, a fixing groove is provided on the base corresponding to the guiding column, and the end of the guiding column is fixedly connected to the fixing groove by a screw.

[0012] The beneficial effects of the present utility model are as follows:

[0013] During the use of the present utility model, firstly, the workpiece is pressed between the pressing cover and the base by the lock nut and the pressing cover. Then, the pressure is transmitted to the pressing block through the pressing cylinder, so as to realize the press riveting of the rivet, solving the problem that the existing press riveting equipment cannot adapt to the operation with obstacles on the workpiece, and having good practicability. Secondly, the present utility model can lock a plurality of workpieces on the circumferential side of the pressing block. An arc groove and a press riveting end are respectively provided on each side of the pressing block close to the workpiece, realizing the press riveting of the rivets on a plurality of workpieces by the pressing block at the same time, and effectively improving the working efficiency. Description of the Drawings

[0014] Figure 1 Schematic diagram of the riveting of the rivet and the workpiece;

[0015] Figure 2 Schematic diagram of the working of the press riveting device for the workpiece rivet of the present utility model;

[0016] Figure 3 For Figure 2 Top view of;

[0017] Figure 4 Schematic diagram of the structure of the pressing block;

[0018] Figure 5 Schematic diagram of the structure of the mounting disc;

[0019] Figure 6 Schematic diagram of the structure of the base

[0020] Figure 7 is Figure 3 The cross-sectional view taken along A-A in

[0021] Wherein: 1 - rivet, 2 - round nut, 3 - short bushing, 4 - lock nut, 5 - gland, 6 - center stud, 7 - connecting screw, 8 - mounting disc, 10 - base, 11 - pressing cylinder, 12 - pressing block, 13 - guiding column. Specific implementation mode

[0022] Embodiment 1:

[0023] A riveting device for the outer side of a workpiece, comprising a base 10, a locking mechanism and a riveting mechanism. The locking mechanism and the riveting mechanism are respectively installed at both ends of the base 10. The locking mechanism is used to limit and fix the position of the workpiece, and the riveting mechanism is used to avoid the flange on the outer side of the workpiece and rivet the outer side rivet 1.

[0024] The locking mechanism includes a center stud 6, a gland 5 and a lock nut 4. The top of the center stud 6 passes through the workpiece and is threadedly connected with the lock nut 4. A gland 5 is slidably sleeved on the center stud 6 between the lock nut 4 and the workpiece, and the gland 5 is clamped with the top of the workpiece. In the present utility model, the gland 5 and the base 10 are used to press the workpiece by rotating the lock nut 4.

[0025] The riveting mechanism includes a pressing block 12 and a pressing cylinder 11. The pressing block 12 is slidably connected with the guiding column 13 on the base 10, and a pressing cylinder 11 is clamped on the top of the pressing block 12. An arc-shaped groove is arranged on one side of the pressing block 12 close to the workpiece for avoiding the flange on the outer side of the workpiece, and a riveting end corresponding to the rivet 1 is arranged at the bottom of the side of the pressing block 12 close to the workpiece.

[0026] Preferably, in the present utility model, a plurality of workpieces can be locked on the periphery of the pressing block 12. An arc-shaped groove and a riveting end are respectively arranged on each side of the pressing block 12 close to the workpiece. By applying pressure through the pressing cylinder 11, the rivets 1 on a plurality of workpieces are simultaneously riveted, effectively improving the working efficiency.

[0027] In the using process of the present utility model, firstly, the workpiece is pressed between the gland 5 and the base 10 by the lock nut 4 and the gland 5. Then, the pressure is transmitted to the pressing block 12 through the pressing cylinder 11, so as to realize the riveting of the rivet 1, solving the problem that the existing riveting equipment cannot adapt to the operation with obstacles on the workpiece, and having good practicability.

[0028] Embodiment 2:

[0029] A riveting device for the outer side of a workpiece, such as Figure 2 、Figure 3 , Figure 6 and Figure 7 As shown in Figure 7 , it includes a base 10, a mounting disc 8, a central stud 6, a gland 5, a locking nut 4, as well as a pressing block 12 and a pressing cylinder 11. One end of the base 10 is provided with an embedded groove, the mounting disc 8 is fixedly installed in the embedded groove, and a central stud 6 is fixedly connected to the middle of the mounting disc 8. The top of the central stud 6 passes through the workpiece, the gland 5 and is threadedly connected to the locking nut 4, and the gland 5 abuts against the top of the workpiece. The other end of the base 10 is evenly provided with 3 guide posts 13 along the circumferential side. A sliding hole is correspondingly arranged on the circumferential side of the pressing block 12, and a pressing cylinder 11 is clamped on the top of the pressing block 12. Specifically, as Figure 4 shown, the circumferential side of the pressing block 12 is evenly provided with 3 sliding holes, and a circular clamping groove is correspondingly arranged in the middle for the pressing cylinder 11. As Figure 5 shown, the middle of the mounting disc 8 is provided with an embedded groove corresponding to the central stud 6, and a plurality of positioning grooves are correspondingly arranged on the circumferential side for the connecting screw 7. The workpiece in this embodiment is the short bushing 3.

[0030] During the use of the present utility model, the short bushing 3 is installed in the mounting disc 8, the central stud 6 is installed in the middle of the mounting disc 8, the locking nut 4 and the gland 5 press on the short bushing 3, and the short bushing 3 cannot move. The mounting disc 8 and the base 10 are connected together by screws. The guide posts 13 and the base 10 are connected together by screws. The number of guide posts 13 is 3, and the pressing block 12 correspondingly has 3 sliding holes. The pressing block 12 is sleeved on the guide posts 13 and can move up and down linearly along the guide posts 13.

[0031] During use, the round nut 2 and the short bushing 3 are connected together with the connecting screw 7. The round nut 2 and the short bushing 3 remain stationary, and the rivet 1 is installed in the holes between the round nuts 2 and the short bushing 3 on both sides. The short bushing 3 is fixedly pressed on the mounting disc 8 with the locking nut 4 and the gland 5, and the short bushing 3 remains stationary. There is a circular clamping groove in the pressing block 12, which can insert the pressing cylinder 11. The guide posts 13 are fixed on the mounting disc 8. The 3 guide posts 13 serve as guide posts 13 to ensure that the up and down movement of the pressing block 12 is in a horizontal state. In the pressing block 12, there is an arc hole, which can avoid the circular flange of the short bushing 3 and can move up and down flexibly. The pressing cylinder 11 is pressed by a manual press, and the pressure is transmitted to the rivet 1 through the pressing block 12. When the rivet 1 receives the pressure, it becomes thicker and shorter. In this way, the round nut 2 and the short bushing 3 are riveted together through the deformation of the rivet 1.

[0032] The above is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A riveting device for rivets on the outside of a workpiece, characterized in that: The invention comprises a base (10), a locking mechanism and a riveting mechanism, wherein the locking mechanism and the riveting mechanism are respectively installed at two ends of the base (10); the locking mechanism comprises a central stud (6), a pressure cover (5) and a locking nut (4); the central stud (6) is fixedly arranged at one end of the base (10); the workpiece is sleeved on the outside of the central stud (6); the top end of the central stud (6) passes through the workpiece and the pressure cover (5) and is connected to the locking nut (4); the pressure cover (5) abuts against the top of the workpiece; the riveting mechanism comprises a pressure block (12) and a pressure cylinder (11); the pressure block (12) is slidably arranged at the other end of the base (10); the pressure cylinder (11) is installed on the top of the pressure block (12); an arc groove is arranged on a side of the pressure block (12) close to the workpiece corresponding to the outer protrusion of the workpiece, and a riveting end is arranged on the bottom of one side of the pressure block (12) corresponding to the rivet (1) on the outer side of the workpiece.

2. A riveting device for rivets on the outside of a workpiece according to claim 1, characterized in that: It also includes a mounting disc (8) mounted on one end of the base (10); a U-shaped mounting groove is provided at the top of one end of the base (10) corresponding to the mounting disc (8); and a central stud (6) is fixedly mounted in the middle of the mounting disc (8).

3. A riveting device for rivets on the outside of a workpiece according to claim 2, characterized in that: An embedding groove is provided in the middle of the mounting disc (8) corresponding to the central stud (6), and the end of the central stud (6) is fixedly connected to the embedding groove by means of screws.

4. A riveting device for rivets on the outside of a workpiece according to claim 2, characterized in that: The outer side of the workpiece is fixedly connected to the round nut (2) via a connecting screw (7), and riveting holes are respectively provided on both sides of the round nut (2) corresponding to the screws, and a plurality of positioning grooves are provided on the circumference of the mounting disc (8) corresponding to the connecting screws (7).

5. A riveting device for rivets on the outside of a workpiece according to any one of claims 1 to 4, characterized in that: A pressing block (12) is slidably mounted in the middle of the base (10), and a plurality of central studs (6) are fixedly arranged on the base (10) around the pressing block (12).

6. A riveting device for rivets on the outside of a workpiece according to claim 1, characterized in that: A clamping groove is provided at the top of the pressing block (12) corresponding to the pressing cylinder (11), a plurality of sliding holes are provided on the peripheral side of the pressing block (12) away from the workpiece, and a plurality of guide columns (13) are provided on the base (10) correspondingly.

7. A riveting device for rivets on the outside of a workpiece according to claim 6, characterized in that: A fixing groove is provided on the base (10) corresponding to the guide column (13), and an end of the guide column (13) is fixedly connected to the fixing groove by means of a screw.

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