CN212469469U

CN212469469U - Novel loosening and non-decompression expanding riveting jig

Info

Publication number: CN212469469U
Application number: CN202021060084.5U
Authority: CN
Inventors: 魏昭辉
Original assignee: Wanshengxing Precision Technology Huizhou Co ltd
Current assignee: Wanshengxing Precision Technology Huizhou Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-02-05
Anticipated expiration: 2030-06-10

Abstract

The utility model relates to a press and rivet tool technical field, specifically disclose a novel loose not to press and rise and rivet tool, including last mould unit and lower mould unit, last mould unit locates the upper end of lower mould unit, be equipped with the guide bar between last mould unit and the lower mould unit and press and rise and rivet the unit; the pressure expansion riveting unit comprises a connecting rod, a sleeve, a pressure riveting spring, a pressure riveting punch, an expansion riveting spring and an expansion riveting punch; one end of the connecting rod is connected with the upper die unit, the other end of the connecting rod is connected with the sleeve, the press riveting spring is connected with the upper end of the press riveting punch, and the upper ends of the press riveting spring and the press riveting punch are positioned in the sleeve; the press riveting punch is hollow; the expansion riveting spring penetrates through the upper end of the expansion riveting punch, and the expansion riveting spring and the expansion riveting punch are positioned in the pressure riveting punch; the utility model discloses can simplify the shaping process that the pine does not take off, improve production efficiency to and ensure the stability and the reliability of production, improve product quality.

Description

Novel loosening and non-decompression expanding riveting jig

Technical Field

The utility model relates to a press and rivet tool technical field, especially relate to a novel loosening is not taken off to press and is expanded and rivet tool.

Background

The loosening prevention is mainly divided into press riveting loosening prevention and expansion riveting loosening prevention, and the press riveting or the expansion riveting are carried out on the mounting plate through the positions of the screw fastening plate and the plate.

In practical application, the pressure riveting type loosening and the expansion riveting type loosening are found to have the characteristic of easy loosening after assembly, so that the pressure riveting type loosening and the expansion riveting type loosening are fused into the pressure expansion riveting type loosening in the prior industry.

The assembly process adopted by the pressure expansion riveting type loosening-prevention device is that the pressure riveting is carried out firstly and then the expansion riveting is carried out, as shown in fig. 1 and fig. 2, two processing procedures are needed, and one-time turnover frequency exists between the two processing procedures, so that the production efficiency is influenced, the occupied area is large, and the production cost is increased.

In addition, when the pressure expanding riveting type is loosened and processed, the upper die is a hard die, the loosening with the nominal length larger than 25mm is not loosened, when the upper die is pressed down, if the pressure expanding riveting type is not loosened and not placed in place, the screw rod can be damaged, the thread can be scratched, the pressing can not be in place, and other undesirable phenomena can occur, and the product or the broken fragment of the jig can be ejected to cause injury to operators.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a novel loosening is not taken off to press and is expanded riveting tool can simplify the shaping process that the loosening was not taken off, improves production efficiency to and ensure the stability and the reliability of production, improve product quality.

In order to solve the technical problem, the utility model provides a concrete scheme as follows:

a novel loosening-free pressing and expanding riveting jig comprises an upper die unit and a lower die unit, wherein the upper die unit is arranged at the upper end of the lower die unit, and a guide rod and a pressing and expanding riveting unit are arranged between the upper die unit and the lower die unit;

the pressure expansion riveting unit comprises a connecting rod, a sleeve, a pressure riveting spring, a pressure riveting punch, an expansion riveting spring and an expansion riveting punch;

one end of the connecting rod is connected with the upper die unit, the other end of the connecting rod is connected with the sleeve, the press riveting spring is connected with the upper end of the press riveting punch, and the upper ends of the press riveting spring and the press riveting punch are positioned in the sleeve;

the press riveting punch is hollow;

the expansion riveting spring penetrates through the upper end of the expansion riveting punch, and the expansion riveting spring and the expansion riveting punch are located in the pressure riveting punch.

Optionally, be equipped with in the sleeve and be used for carrying on spacing first spacing collar to the pressure riveting drift, the biggest displacement volume of restriction pressure riveting drift avoids not taking off to produce excessive punching press to the pine.

Optionally, a second limiting ring used for limiting the expanding riveting spring is arranged in the pressing riveting punch and used for limiting the position of the expanding riveting spring to realize compression of the expanding riveting spring.

Optionally, a release positioning block is arranged at a position, corresponding to the pressure expansion riveting unit, on the lower die unit, and the release positioning block is used for positioning release, so that the machining precision is improved.

Optionally, the lower die unit comprises a bottom plate and a lower die holder arranged at the upper end of the bottom plate;

the loosening-preventing positioning block is detachably arranged on the lower die base, so that the loosening-preventing positioning block can be conveniently replaced to be suitable for positioning of loosening-preventing in different models and sizes.

Optionally, a positioning groove is arranged on the lower die base;

the release-free positioning block comprises a stamping part protruding out of the positioning groove and a positioning part matched with the positioning groove, and quick replacement, installation and positioning of the release-free positioning block are achieved.

Optionally, the upper die unit comprises a die shank, an upper die base pressing plate connected with the lower end of the die shank, and an upper die base connected with the upper die base pressing plate;

the connecting rod is connected with the upper die base and ascends or descends under the action of the upper die unit.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a pair of novel loosening is not pulled to press and is risen and rivet tool can simplify the shaping process that the loosening was not pulled, improves production efficiency to and ensure the stability and the reliability of production, improve product quality.

Drawings

Fig. 1 is a schematic view of a press riveting process in the background art.

Fig. 2 is a schematic diagram of a process of expanding riveting in the background art.

Fig. 3 is the embodiment of the utility model provides a novel loose not to press and rise the overall structure schematic diagram of riveting tool.

Fig. 4 is an exploded view of the overall structure of the expanding and riveting jig according to the embodiment of the present invention.

Fig. 5 is a cross-sectional view of the expanding riveting jig provided in the embodiment of the present invention.

Fig. 6 is an exploded view of the pressing expanding riveting unit provided in the embodiment of the present invention.

Fig. 7 is a cross-sectional view of the pressure expansion riveting unit provided in the embodiment of the present invention.

Fig. 8 is a schematic view of a press expanding rivet type release structure provided in the embodiment of the present invention.

Wherein, 1 is an upper die unit; 11 is a die handle; 12 is an upper die base pressing plate; 13 is an upper die holder; 2 is a lower die unit; 21 is a bottom plate; 22 is a lower die holder; 3 is a guide rod; 4, a pressure expansion riveting unit; 41 is a connecting rod; 42 is a sleeve; 421 is a first spacing ring; 43 is a pressure riveting spring; 44 is a press riveting punch; 441 is a second limit ring; 45 is a rising rivet spring; 46 is a rising riveting punch; 5 is a loose-proof positioning block; 6, expansion riveting type loosening and falling prevention; 61 is a screw rod; 62 is a pressure riveting step; and 63 is a rising riveting step.

Detailed Description

In order to explain the technical solution of the present invention in detail, the following will combine the drawings of the embodiments of the present invention to perform clear and complete description on the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

For example, the novel loosening-preventing pressing-riveting fixture comprises an upper die unit and a lower die unit, wherein the upper die unit is arranged at the upper end of the lower die unit, and a guide rod and a pressing-riveting unit are arranged between the upper die unit and the lower die unit; the pressure expansion riveting unit comprises a connecting rod, a sleeve, a pressure riveting spring, a pressure riveting punch, an expansion riveting spring and an expansion riveting punch; one end of the connecting rod is connected with the upper die unit, the other end of the connecting rod is connected with the sleeve, the press riveting spring is connected with the upper end of the press riveting punch, and the upper ends of the press riveting spring and the press riveting punch are positioned in the sleeve; the press riveting punch is hollow; the expansion riveting spring penetrates through the upper end of the expansion riveting punch, and the expansion riveting spring and the expansion riveting punch are located in the pressure riveting punch.

The utility model provides a pair of novel tool is riveted to not pushing off and rising of pine, can simplify to push to rise to rivet the shaping process that the type pine was not come off, improve production efficiency to and ensure the stability and the reliability of production, improve product quality.

As shown in fig. 3-7, the novel loosening-preventing and pressing-preventing expanding riveting jig comprises an upper die unit and a lower die unit, wherein the upper die unit is arranged right above the lower die unit, and a guide rod and a pressing expanding riveting unit are arranged between the upper die unit and the lower die unit.

This go up the mould unit and can realize rising or descending motion to carry out accurate removal under the effect of guide bar, prevent the skew of stroke, and then realize the accurate nature of processing, the pressure rises to rivet the unit and rises or descend to remove under the drive of last mould unit.

The pressure expansion riveting unit comprises a connecting rod, a sleeve, a pressure riveting spring, a pressure riveting punch, an expansion riveting spring and an expansion riveting punch.

Wherein, the one end of connecting rod is connected and is gone up the die unit, the other end connecting sleeve of connecting rod, and the sleeve is the cavity form, presses in riveting the spring and the sleeve is located to press the upper end of riveting the drift, presses the riveting drift to be the cavity form, rises to rivet the spring and wears to locate to rise the upper end of riveting the drift, rises to rivet the spring and rises to rivet the drift and be located to press in the riveting drift.

When the upper die unit descends, the pressure riveting punch head can contact the product and correct the pressure of the screw rod which is not loosened by the pressure riveting type, so that the screw rod is vertical to and centered in the pressure riveting punch head, the connecting rod can compress the pressure riveting spring in the sleeve along with the descending of the upper die unit, and the product and the pressure riveting type are loosened and smoothly pressed along with the increase of the compression degree of the pressure riveting spring; when the pressing riveting spring is pressed to the limit, the expansion riveting punch and the pressing expansion riveting type release do not release the contact of the expansion riveting top end, when the upper die unit descends to the end point, the pressing riveting punch and the expansion riveting punch are in hard contact with a product, and the pressing expansion riveting type release is not released and is synchronously pressed and riveted and expanded. The pressure riveting spring mainly plays a buffering pressing role with the rising riveting spring, and the pressure riveting spring plays a guide role in pressing rising riveting loose screw rods so as to prevent the pressure rising riveting loose screw rods from being distorted to cause poor pressure riveting.

As shown in fig. 8, the rivet pressing type release device 6 mentioned in the present application includes a screw 61, a rivet pressing step 62 and a rivet pressing step 63.

In some embodiments, a first limiting ring for limiting the pressure riveting punch is arranged in the sleeve, the maximum displacement of the pressure riveting punch is limited, and excessive punching caused by loosening of the pressure expansion riveting type is avoided.

Specifically, the sleeve is hollow circular cylinder, include first cavity and second cavity in the sleeve, first spacing collar is located between first cavity and the second cavity, the diameter of first cavity is greater than the diameter of second cavity, when the installation, can pack into the drift from first cavity with pressing the rivet earlier, because the top of the drift of pressing the rivet receives the restriction of first spacing collar, consequently, realize the injecing to the mounted position of the drift of pressing the rivet, pack into the spring of pressing the rivet again from first cavity, under the non-operation state, the spring of pressing the rivet is normal state, the drift of pressing the rivet is connected to the one end of spring of pressing the rivet, the connecting rod is connected to the other end of spring of pressing the rivet. When the connecting rod descends along with the upper die unit, the connecting rod can extrude the pressure riveting spring.

In some embodiments, a second limiting ring for limiting the expansion riveting spring is arranged in the pressure riveting punch and used for limiting the position of the expansion riveting spring to realize compression of the expansion riveting spring.

The cross-section of the expanding riveting punch is T-shaped, the expanding riveting spring penetrates through the upper end of the expanding riveting punch, one end of the expanding riveting spring is limited by the upper end of the expanding riveting punch, then the other end of the expanding riveting spring is limited by a second limiting ring in the pressing riveting punch, the expanding riveting spring is installed, and the expanding riveting spring plays a role in buffering and pressing.

In some embodiments, the lower die unit is provided with a loosening-preventing positioning block corresponding to the pressing and expanding riveting unit, the pressing and expanding riveting type loosening-preventing positioning block is positioned, and machining precision is improved.

The lower die unit comprises a bottom plate and a lower die base arranged at the upper end of the bottom plate; the loosening-preventing positioning block is detachably arranged on the lower die base, so that the loosening-preventing positioning block can be conveniently replaced, and the loosening-preventing positioning device is suitable for positioning of different types and sizes of pressing expanding riveting types.

A positioning groove is arranged on the lower die base; the release and non-release positioning block comprises a stamping part protruding out of the positioning groove and a positioning part matched with the positioning groove, and quick replacement, installation and positioning of the release and non-release positioning block are achieved.

In this example, the constant head tank is hexagonal shape, when installing the loose positioning piece that does not take off, through holding the punching press part, with the positioning portion alignment constant head tank, from the top down installs, because the hexagonal shape design of constant head tank for the loose positioning piece that does not take off can not take place the displacement in the constant head tank, and then improves the location accuracy that the type loose that rises to rivet does not take off.

The upper die unit comprises a die handle, an upper die base pressing plate connected with the lower end of the die handle and an upper die base connected with the upper die base pressing plate; the connecting rod is connected with the upper die base and ascends or descends under the action of the upper die unit.

The utility model provides a pair of novel tool is riveted to not pushing away of pine and rising can simplify to push to rise to rivet the shaping process that the type pine was not pulled away, improves production efficiency to and ensure the stability and the reliability of production, improve product quality.

It is understood that different embodiments among the components in the above embodiments can be combined and implemented, and the embodiments are only for illustrating the implementation of specific structures and are not limited to the implementation of the embodiments.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The novel loosening-preventing pressing-expanding riveting jig is characterized by comprising an upper die unit (1) and a lower die unit (2), wherein the upper die unit (1) is arranged at the upper end of the lower die unit (2), and a guide rod (3) and a pressing-expanding riveting unit (4) are arranged between the upper die unit (1) and the lower die unit (2);

the pressure expansion riveting unit (4) comprises a connecting rod (41), a sleeve (42), a pressure riveting spring (43), a pressure riveting punch head (44), an expansion riveting spring (45) and an expansion riveting punch head (46);

one end of the connecting rod (41) is connected with the upper die unit (1), the other end of the connecting rod (41) is connected with the sleeve (42), the press riveting spring (43) is connected with the upper end of the press riveting punch head (44), and the upper ends of the press riveting spring (43) and the press riveting punch head (44) are positioned in the sleeve (42);

the press riveting punch head (44) is hollow;

the expansion riveting spring (45) penetrates through the upper end of the expansion riveting punch head (46), and the expansion riveting spring (45) and the expansion riveting punch head (46) are located in the pressure riveting punch head (44).

2. The novel loose and non-falling pressure expansion riveting jig is characterized in that a first limiting ring (421) used for limiting the pressure riveting punch (44) is arranged in the sleeve (42).

3. The novel loose and non-loose expansion riveting jig is characterized in that a second limiting ring (441) for limiting the expansion riveting spring (45) is arranged in the compression riveting punch (44).

4. The novel loose and non-falling pressure expanding riveting jig is characterized in that a loose and non-falling positioning block (5) is arranged on the lower die unit (2) corresponding to the pressure expanding riveting unit (4).

5. The novel loose-proof and non-pressure expanding riveting jig is characterized in that the lower die unit (2) comprises a bottom plate (21) and a lower die seat (22) arranged at the upper end of the bottom plate (21);

the non-releasing positioning block (5) is detachably arranged on the lower die base (22).

6. The novel loose and non-pressing expansion riveting jig is characterized in that a positioning groove is formed in the lower die seat (22);

the loose and non-releasing positioning block (5) comprises a stamping part protruding out of the positioning groove and a positioning part matched with the positioning groove.

7. The novel loose-proof and non-press expanding rivet jig is characterized in that the upper die unit (1) comprises a die shank (11), an upper die base pressing plate (12) connected with the lower end of the die shank (11), and an upper die base (13) connected with the upper die base pressing plate (12);

the connecting rod (41) is connected with the upper die holder (13).