Quick switching device for pressing rivet die

Abstract

The utility model relates to the technical field of pressure riveting, and discloses a quick switching device for pressure riveting dies, a rotating seat is rotatably connected with the upper half part of a mounting rotating rod through a central hole, a locking mechanism is arranged on a base in a vertical lifting manner, a plurality of positioning holes which are annularly distributed are formed in the surface of the upper end of the rotating seat, and the upper half part of the mounting rotating rod is fixedly connected with the rotating seat. The upper end of the locking mechanism extends into the positioning hole, a plurality of annularly-distributed mounting holes are formed in the surface of the upper end of the rotating seat, a plurality of pressing rivet lower dies of different structures are inserted into the mounting holes correspondingly, the rotating seat is rotationally arranged above the base, the mounting holes distributed in a circumferential array mode are formed in the rotating seat, and therefore the pressing rivet lower dies of different structures can be pressed. A plurality of pressing rivet lower dies of different structures are arranged in the mounting holes, the positions of the different pressing rivet lower dies can be changed by rotating the rotating seat, and then the needed pressing rivet lower dies are located under the squeeze riveter, so that the pressing rivet lower dies can be rapidly replaced, the pressing rivet effect is achieved, and the pressing rivet efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting, in particular to a rapid switching device for riveting dies. Background Art

[0002] Some products require riveting machines for riveting during the production and assembly process. Usually, the riveting die is fixed on the base, and a riveting machine is set above the riveting die. The riveting head of the film pressing machine is directly above the riveting die. When riveting, the position that needs to be riveted is placed above the hole of the riveting die. The riveting machine can perform riveting operations on it through the riveting head. There will be a variety of different riveting structures and sizes at different positions on the same product. At present, the corresponding riveting die needs to be replaced for film pressing of different structures at different positions of the same product. This makes the operation more complicated and time-consuming, resulting in low riveting efficiency. For this reason, we designed a rapid switching device for riveting dies. Utility Model Content

[0003] In order to solve the technical problem of quickly replacing a plurality of riveting lower dies with different structures, the utility model provides a riveting die quick switching device.

[0004] The utility model adopts the following technical scheme to achieve: a quick switching device for a riveting die, comprising a base and a rotating base, a mounting rotating rod is installed at the center of the base, the upper half of the mounting rotating rod is placed above the base, a center hole is formed through the center of the rotating base, the rotating base is rotatably connected to the upper half of the mounting rotating rod through the center hole, and the bottom end of the rotating base does not directly contact the upper surface of the base;

[0005] The base is provided with a locking mechanism in an up-and-down lifting manner, and a plurality of positioning holes distributed in an annular shape are opened on the upper end surface of the rotating seat, and the upper end of the locking mechanism extends into the positioning hole;

[0006] A plurality of mounting holes distributed in a ring shape are formed on the upper end surface of the rotating seat, and a plurality of riveting lower dies with different structures are respectively inserted into the plurality of mounting holes.

[0007] As a further improvement of the above scheme, a plurality of annularly distributed locking screw holes are provided on the outer ring surface of the rotating seat, the locking screw holes are connected to the mounting holes, and the locking screw holes are threadedly connected with locking bolts, and the inward end of the locking bolts is tightly pressed with the riveting lower die, and the riveting lower die can be directly inserted into the positioning hole, and then it can be quickly fixed by the locking bolts, which is also convenient for disassembly.

[0008] As a further improvement of the above scheme, the upper surface of the base is recessed downward to form an embedding hole, the locking mechanism includes a locking spring, and the locking spring is placed in the embedding hole, a locking pin is abutted above the locking spring, the upper end of the locking pin is hemispherical and is placed in the positioning hole, the bottom edge of the positioning hole is chamfered to form an arc surface, and the rotating seat will cause the locking pin to compress the locking spring and move downward when rotating, and when the upper riveting lower die rotates to the desired position, the locking pin is now in the positioning hole corresponding to the riveting lower die, so that the rotating plate can be positioned to prevent it from being easily deflected.

[0009] As a further improvement of the above scheme, a threaded groove is opened at the center of the bottom end of the base, and a circular hole is formed through the top of the threaded groove, wherein the threaded groove and the circular hole cross-section are convex-shaped structures, and a mounting threaded portion is provided at the lower end of the mounting rotating rod. The mounting threaded portion is threadedly connected in the threaded groove, and the upper half thereof passes through the circular hole and is placed above the base, so as to facilitate the installation and disassembly of the mounting rotating rod.

[0010] As a further improvement of the above scheme, a threaded section is provided on the top of the outer ring surface of the mounting rotating rod, and the threaded section is placed above the rotating seat. A nut is threadedly connected to the threaded section, and the lower surface of the nut is in contact with the upper surface of the rotating seat, which can limit the rotating seat and prevent it from moving upward, and the tightening degree of the nut can change the pressure between the rotating seat and the supporting ball, and will not hinder the normal rotation of the rotating seat.

[0011] As a further improvement of the above scheme, four annularly distributed embedding grooves are provided on the upper end surface of the base, a mounting sleeve is fixed in the embedding groove, a threaded sleeve is threadedly connected to the inside of the mounting sleeve, a hemispherical groove is provided on the top of the threaded sleeve, a supporting ball is movably placed in the hemispherical groove, the top of the supporting ball is above the base, and the bottom end of the rotating seat is in rolling contact with the supporting ball, the rotating seat is not in direct contact with the base, thereby reducing the resistance between the two and facilitating the rotation of the rotating seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is provided with a rotating seat rotatably arranged above the base, and a plurality of mounting holes distributed in a circumferential array are arranged on the rotating seat, and a plurality of riveting lower dies with different structures are arranged in these mounting holes. The positions of different riveting lower dies can be changed by rotating the rotating seat, so that the required riveting lower dies are located directly below the riveting machine, so that the riveting lower dies can be quickly replaced and the riveting action can be performed, thereby improving the riveting efficiency;

[0014] 2. By arranging a locking mechanism on the base and arranging a plurality of positioning holes corresponding to the mounting holes on the rotating seat, the locking mechanism can be placed in the positioning hole. When the riveting lower die is rotated to the required position, the locking pin is in the positioning hole corresponding to the riveting lower die, so that the rotating plate can be positioned, making it less likely to deflect and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the quick switching device for the riveting die provided by the utility model;

[0016] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0017] Figure 3 for Figure 1 Schematic diagram of the internal structure;

[0018] Figure 4 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0019] Description of main symbols:

[0020] 1. Base; 2. Rotating seat; 21. Mounting hole; 22. Positioning hole; 23. Locking screw hole; 3. Locking bolt; 4. Riveting lower die; 5. Mounting rotating rod; 51. Mounting threaded part; 6. Locking mechanism; 61. Locking pin; 62. Locking spring; 7. Support ball; 71. Mounting sleeve; 72. Threaded sleeve. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1-Figure 4 The fast switching device of the riveting die of this embodiment includes a base 1 and a rotating base 2. A mounting rotating rod 5 is installed at the center of the base 1. The upper half of the mounting rotating rod 5 is placed above the base 1. A center hole is formed through the center of the rotating base 2. The rotating base 2 is rotatably connected to the upper half of the mounting rotating rod 5 through the center hole, and the bottom end of the rotating base 2 does not directly contact the upper surface of the base 1.

[0024] The base 1 is provided with a locking mechanism 6 in an up-and-down lifting manner, and a plurality of positioning holes 22 distributed in an annular pattern are provided on the upper surface of the rotating base 2, and the upper end of the locking mechanism 6 extends into the positioning hole 22;

[0025] A plurality of mounting holes 21 distributed in a ring shape are formed on the upper end surface of the rotating seat 2 , and a plurality of riveting lower dies 4 with different structures are respectively inserted into the plurality of mounting holes 21 .

[0026] A plurality of annularly distributed locking screw holes 23 are provided on the outer ring surface of the rotating seat 2. The locking screw holes 23 are connected to the mounting holes 21, and the locking screw holes 23 are internally threadedly connected with locking bolts 3. The inward end of the locking bolts 3 is tightly pressed with the riveting lower die 4. The riveting lower die 4 can be directly inserted into the positioning holes 22, and then it can be quickly fixed by the locking bolts 3, which is also convenient for disassembly.

[0027] The upper surface of the base 1 is recessed downward to form an embedding hole, and the locking mechanism 6 includes a locking spring 62, and the locking spring 62 is placed in the embedding hole. A locking pin 61 is abutted above the locking spring 62. The upper end of the locking pin 61 is hemispherical and is placed in the positioning hole 22. The bottom edge of the positioning hole 22 is chamfered to form an arc surface. When the rotating seat 2 rotates, the locking pin 61 will compress the locking spring 62 and move downward. When the upper riveting lower die 4 rotates to the desired position, the locking pin 61 is now in the positioning hole 22 corresponding to the riveting lower die 4, so that the rotating plate can be positioned to prevent it from being easily deflected.

[0028] A threaded groove is provided at the center of the bottom end of the base 1, and a circular hole is formed through the top of the threaded groove, wherein the threaded groove and the circular hole have a convex structure in cross-section, and a mounting threaded portion 51 is provided at the lower end of the mounting rotating rod 5. The mounting threaded portion 51 is threadedly connected in the threaded groove, and the upper half thereof passes through the circular hole and is placed above the base 1, so as to facilitate the installation and disassembly of the mounting rotating rod 5.

[0029] A threaded section is provided on the top of the outer ring surface of the mounting rotating rod 5, and the threaded section is placed above the rotating seat 2. A nut is threadedly connected to the threaded section, and the lower surface of the nut contacts the upper surface of the rotating seat 2, which can limit the rotating seat 2 and prevent it from moving upward. The tightening degree of the nut can change the pressure between the rotating seat 2 and the supporting ball 7, and will not hinder the normal rotation of the rotating seat 2.

[0030] The upper surface of the base 1 is provided with four annular embedded grooves, in which a mounting sleeve 71 is fixed, and a threaded sleeve 72 is threadedly connected to the inside of the mounting sleeve 71. A hemispherical groove is provided at the top of the threaded sleeve 72, and a supporting ball 7 is movably placed in the hemispherical groove. The top of the supporting ball 7 is above the base 1, and the bottom end of the rotating seat 2 is in rolling contact with the supporting ball. The rotating seat 2 is not in direct contact with the base 1, which reduces the resistance between the two and facilitates the rotation of the rotating seat 2.

[0031] The implementation principle of the riveting die quick switching device in the embodiment of the present application is as follows: a plurality of mounting holes 21 distributed in an annular shape are provided above the rotating seat 2, and a plurality of riveting lower dies 4 of different structures and sizes are fixed in these mounting holes 21, and one of the riveting lower dies 4 is located directly below the riveting head of the riveting machine. When a different riveting lower die 4 needs to be replaced, it is only necessary to forcefully rotate the rotating seat 2 and rotate the required riveting lower die 4 to directly below the riveting head. During the rotation process, the locking pin 61 will compress the locking spring 62 and move downward. When the upper riveting lower die 4 rotates to the desired position, the locking pin 61 is located in the positioning hole 22 corresponding to the riveting lower die 4, so that the rotating plate can be positioned so that it will not rotate when it does not receive a large force. At this time, another structure can be riveted.

[0032] By rotating the rotating seat 2 above the base 1, a plurality of mounting holes 21 distributed in a circumferential array are arranged on the rotating seat 2, and a plurality of riveting lower dies 4 with different structures are arranged in these mounting holes 21, the positions of different riveting lower dies 4 can be changed by rotating the rotating seat 2, so that the required riveting lower dies 4 are located directly below the riveting machine, so that the riveting lower dies 4 can be quickly replaced and the riveting action can be performed, thereby improving the riveting efficiency;

[0033] By arranging a locking mechanism 6 on the base 1 and arranging a plurality of positioning holes 22 corresponding to the mounting holes 21 on the rotating seat 2, the locking mechanism 6 can be placed in the positioning hole 22. When the riveting lower die 4 is rotated to the desired position, the locking pin 61 is at this time in the positioning hole 22 corresponding to the riveting lower die 4, so that the rotating plate can be positioned, making it less likely to deflect, thereby improving stability.

[0034] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A quick switching device for a riveting die, comprising a base (1) and a rotating base (2), characterized in that: A mounting rotating rod (5) is installed at the center of the base (1), the upper half of the mounting rotating rod (5) is placed above the base (1), a center hole is formed through the center of the rotating seat (2) from top to bottom, the rotating seat (2) is rotatably connected to the upper half of the mounting rotating rod (5) through the center hole, and the bottom end of the rotating seat (2) does not directly contact the upper surface of the base (1); The base (1) is provided with a locking mechanism (6) in an up-and-down lifting manner, and the upper end surface of the rotating seat (2) is provided with a plurality of positioning holes (22) distributed in an annular shape, and the upper end of the locking mechanism (6) extends into the positioning hole (22); The upper end surface of the rotating seat (2) is provided with a plurality of mounting holes (21) distributed in a ring shape, and a plurality of riveting lower dies (4) of different structures are respectively inserted into the plurality of mounting holes (21).

2. The riveting die quick switching device according to claim 1, characterized in that: The outer ring surface of the rotating seat (2) is provided with a plurality of locking screw holes (23) distributed in an annular manner, the locking screw holes (23) are connected to the mounting holes (21), and the locking screw holes (23) are internally threadedly connected with locking bolts (3), and the inward end of the locking bolts (3) is tightly pressed into the riveting lower die (4).

3. The riveting die quick switching device according to claim 1, characterized in that: The upper surface of the base (1) is recessed downward to form an embedding hole, the locking mechanism (6) comprises a locking spring (62), and the locking spring (62) is placed in the embedding hole, a locking pin (61) is abutted above the locking spring (62), the upper end of the locking pin (61) is in a hemispherical structure and is placed in the positioning hole (22), and the bottom edge of the positioning hole (22) is rounded to form an arc surface.

4. The riveting die quick switching device according to claim 1, characterized in that: A thread groove is provided at the center of the bottom end of the base (1), and a circular hole is formed through the top end of the thread groove, wherein the thread groove and the circular hole have a convex structure in cross section, and a mounting thread portion (51) is provided at the lower end of the mounting rotating rod (5), wherein the mounting thread portion (51) is threadedly connected in the thread groove, and the upper half thereof passes through the circular hole and is placed above the base (1).

5. The riveting die quick switching device according to claim 1, characterized in that: A threaded section is provided at the top of the outer ring surface of the mounting rotating rod (5), and the threaded section is placed above the rotating seat (2). A nut is threadedly connected to the threaded section, and the lower surface of the nut is in contact with the upper surface of the rotating seat (2).

6. The riveting die quick switching device according to claim 1, characterized in that: The upper surface of the base (1) is provided with four annularly distributed embedding grooves, a mounting sleeve (71) is fixed in the embedding groove, a threaded sleeve (72) is internally threadedly connected to the mounting sleeve (71), a hemispherical groove is provided at the top end of the threaded sleeve (72), a supporting ball (7) is movably placed in the hemispherical groove, the top end of the supporting ball (7) is located above the base (1), and the bottom end of the rotating seat (2) is in rolling contact with the supporting ball.

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