CN107030246A - A kind of curved face product riveting die set - Google Patents

Abstract

The present invention relates to a kind of curved face product riveting die set, including at least one set riveting module, the riveting module includes cavity plate and the corresponding drift vertically moved, the cavity plate include fixed cavity plate with can along spigot surface lifting moving slipping matrix, the inclined rivet groove of relative level is formed between the fixed cavity plate and slipping matrix；The slipping matrix is used to rise before riveting to accept the rivet for being riveted curved face product and being placed in the riveted holes for being riveted curved face product, and will rivet the curved face product completed and rivet jack-up in die sinking.Curved face product riveting die set of the present invention can realize that multiple angles are riveted simultaneously when rivet is riveted on curved face product, improve the production efficiency of riveting.

Description

A riveting mold for curved surface products

technical field

The invention relates to the technical field of riveting devices, in particular to a riveting mold for curved surface products.

Background technique

The shield cover (SHIELD COVER) for display circuit board (PCB) installation requires riveting (rivet) NUT. With the development of technology, the display has a curved structure, so there is an angle when riveting the NUT. The riveting direction of the existing mold is vertical Or horizontal direction, it is difficult to realize, the product needs to be tilted to ensure the vertical direction of the (rivet) NUT, and at the same time the mold is designed at a certain angle, it is more difficult to process, because the length of the (rivet) NUT is longer (10-20mm), if the vertical Direct riveting cannot be demolded; existing molds can only be riveted vertically or horizontally, and angled riveting cannot be achieved.

Contents of the invention

The object of the present invention is to solve the above-mentioned technical problems and provide a riveting mold for curved surface products, which can realize angle riveting for curved surface products, realize simultaneous riveting of multiple angles during riveting, and improve the production efficiency of riveting curved surface products.

To achieve the above object, the present invention adopts the following technical solutions:

A riveting die for a curved surface product, including at least one set of riveting modules, the riveting module includes a die and a corresponding vertically moving punch, the die includes a fixed die and a sliding die that can move up and down along a guide surface, A rivet groove inclined relative to the horizontal plane is formed between the fixed die and the sliding die; it is used to lift up before riveting to accept riveted curved surface products and rivets placed in riveting holes of riveted curved surface products, and When molding, the riveted surface products and rivets are jacked up.

The outer side of the sliding die is provided with a sliding guide device for lifting and sliding the sliding die.

The outer bottom of the sliding die is provided with a sliding limit device for limiting the lifting and sliding distance of the sliding die.

The sliding limit device includes a protruding part arranged at the lower part of the guiding surface of the sliding die and a blocking part provided at the lower side of the guiding surface of the sliding guiding device in cooperation with the protruding part.

The contact side of the sliding guide device and the sliding die is an inclined plane, and the inclined plane and the axis of the rivet groove may intersect at the lower part of the sliding die.

The bottom of the sliding die is provided with a push rod.

The bottom of the push rod is connected with an elastic jacking device.

The die is installed on the die fixing plate, and the die fixing plate is installed on the lower mold base through the die backing plate; the ejector rod for controlling the lifting and sliding of the die is arranged on the die fixing plate. The hole of the stepped mandrel is connected with the elastic jacking device arranged in the backing plate of the die.

The punch is installed on the punch fixing plate, and the punch fixing plate is connected with the upper die base through the punch backing plate.

The riveting modules are in multiple groups.

The riveting mold for curved surface products in the present invention includes a die and a corresponding vertically moving punch through a riveting module. The die includes a fixed die and a sliding die that can be moved vertically, so that multiple riveting can be achieved when the rivet is riveted on a curved product. Riveting at two angles at the same time improves the production efficiency of riveting.

Description of drawings

Fig. 1 is a schematic structural view of a riveting mold for curved surface products provided by an embodiment of the present invention;

Fig. 2 is the schematic diagram of the die provided by the embodiment of the present invention;

Fig. 3 is a schematic diagram of placing the rivet on the rivet hole of the product on the die during riveting;

Fig. 4 is the schematic diagram of mold clamping riveting;

Fig. 5 is a schematic diagram of mold opening after riveting provided by an embodiment of the present invention;

Fig. 6 is a schematic diagram of the structure of the double-cavity mold provided by the embodiment of the present invention.

detailed description

Below, the substantive features and advantages of the present invention will be further described in conjunction with examples, but the present invention is not limited to the listed examples.

Referring to Figures 1-6, a riveting mold for curved surface products includes at least one set of riveting modules, the riveting modules include a die 4 and a corresponding vertically moving punch 5, and the die includes a fixed die 41 and a A sliding die 42 that can move up and down along the guide surface, a rivet groove 9 that is inclined relative to the horizontal plane is formed between the fixed die and the sliding die; the sliding die 42 is used to rise before riveting to accept the Riveting the curved surface product 200 and the rivet 100 placed in the riveting hole of the riveted curved surface product 200, and jacking up the riveted curved surface product and the rivet when the mold is opened.

Wherein, the rivet groove 9 is formed by combining surfaces inclined at the same angle and in the same direction on the opposite sides of the fixed die and the sliding die, and is mainly used for putting in the rivet during riveting. When closing the die, The rivet can move down in the rivet groove and move up together with the riveted product under the drive of the sliding die when the mold is opened, which is the sliding channel of the rivet.

Further, in order to facilitate the lifting of the sliding die, a sliding guide device 12 for lifting and sliding of the sliding die is provided on the outside of the sliding die, and the sliding guide device can make the sliding The lifting of the die is smooth and kept in the predetermined lifting track to protect the quality of riveting. The sliding guide device 12 can be installed in cooperation with the sliding die 42 using a concave-convex groove structure to realize the guiding function.

Further, in order to prevent the falling of the sliding die from affecting the riveting work, a sliding limit device for limiting the lifting and sliding distance of the sliding die is provided on the outer bottom of the sliding die to limit The sliding die is raised by a predetermined distance without being raised again.

Specifically, in the present invention, the sliding limiter includes a protruding portion 421 located at the lower part of the guiding surface of the sliding die and a guiding surface of the sliding guiding device that cooperates with the protruding portion. The blocking portion 121 on the lower side.

The protruding part can be a protruding piece or a protruding block, and the surface in contact with the blocking part can be a matching planar shape. The part that blocks and prevents the protruding part from continuing to move may be an inverted L-shaped part or a similar structure formed by indentation on the lower side of the guide surface of the sliding guide device.

Preferably, in the present invention, the guide surface on which the sliding guide device is in contact with the sliding die to achieve guidance is a preset slope with a certain angle, and the slope with a certain angle is at a distance from the axis of the rivet groove. The lower part of the sliding die can intersect, so that the sliding die 42 can be lifted up and down along the angle of the inclined plane, and it can be lifted when the mold is opened and dropped when the mold is closed to realize the riveting work.

At the same time, in order to better realize the riveting of the product, a positioning groove 410 that is riveted and matched with the curved surface on the product 200 is provided outside the position of the riveting hole aligned at the upper end of the die. When riveting, the riveted product The curved surface of the rivet is placed here, and the riveting hole on it just corresponds to the riveting groove. After the rivet passes through the rivet hole, it is placed in the riveting groove, and the punch is pressed downward to squeeze the sliding die to perform riveting.

In order to realize the lifting and sliding of the sliding die, specifically, a vertically liftable ejector pin 10 is provided at the bottom of the sliding die, and by raising the ejector rod 10, the sliding die can be realized Under the guidance of the sliding guide device, the lifting is realized, and under the limit of the sliding limit device, it can rise a predetermined distance without slipping out or falling down. The ejector rod is specifically arranged on one side of the riveting groove, and the axis of the ejector rod and the axis of the punch are staggered and arranged in parallel.

Specifically, in order to control the lifting of the ejector rod, the bottom of the ejector rod is connected to an elastic lifting device 11, and the lifting of the ejector rod is realized by the elastic force of the elastic lifting device, so as to lift the sliding die Jack up along the slide guide.

Wherein, the elastic jacking device can be realized by a strong spring or a rubber seat or a rubber sleeve, preferably a spring.

On concrete realization, described die is installed on the die fixing plate 6, and described die fixing plate is installed on the lower mold base 8 through die backing plate 7, is used to control the ejector pin of described die lifting and sliding to be arranged on In the stepped ejector pin hole 61 of the die fixing plate, and connected with the elastic jacking device 11 provided in the die backing plate 7, the upper end of the elastic jacking device 11 is located in the stepped ejector pin hole 61 The lower hole is in contact with the bottom of the push rod to control the jacking of the push rod.

Specifically, the punch is installed on the punch fixing plate 3 , and the punch fixing plate is connected with the upper die base through the punch backing plate 2 .

During riveting, under the action of the ejector rod and the elastic jacking device, the sliding die of the die is raised and is in the ejected state. At this time, the die is in an open state, and the moving distance is fixed by the sliding limit device of the sliding die. , the riveted product is placed on the die of the mould, and the rivet 100 is placed in the riveting hole of the riveted product (curved surface product), and the rivet 100 extends into the riveting groove 9, as shown in Figure 3, and then starts Clamp the mold and perform riveting. When the mold is closed and riveted, the sliding die of the mold is pressed down and moves downward. As the mold clamping progresses, the sliding die slides to the bottom side and contacts the fixed die to form the entire riveting die. , the punch continues to descend, and the riveting work is completed, as shown in Figure 4. 5. When the riveting work is completed, the punch fixing plate moves upward, driving the punch to move upward, and the sliding die moves upward under the action of the elastic jacking device, forming It has the same function as ejection, driving the product and the riveted rivet to be demoulded upward, as shown in Figure 5, thus completing the upper riveting work on the curved surface product.

Further, in order to realize the riveting of multiple parts on the product to further improve the production efficiency of riveting, simultaneous riveting of multiple parts can be realized at one time, the riveting modules are multiple groups, and are arranged on the upper die base with the lower mold base. For example, it can be arranged symmetrically in two groups, or it can be arranged in three groups, four groups or other numbers of groups. For example, it can be arranged according to the position of riveting around the center of the mold. The details are not limited, as shown in Figure 6. , Figure 6 shows a schematic diagram of riveting with two sets of riveting modules. Under this structure, simultaneous riveting work at two riveting positions can be realized, thereby greatly improving the efficiency of riveting, and is especially suitable when there are differences in riveting products. When riveting at an angle, multiple structures of this type can be used; and when the riveting is relatively close, a symmetrically distributed structure can be used.

The riveting die for curved surface products of the present invention realizes riveting at an angle, avoids processing the die at an angle, reduces the difficulty of the die, and can flexibly realize single or multiple angles, thereby improving production efficiency.

As can be seen from the above, the riveting die for curved surface products of the present invention includes a die and a corresponding vertically moving punch through the riveting module. The die includes a fixed die and a sliding die that can be lifted and moved vertically. Simultaneous riveting at multiple angles during riveting, improving the production efficiency of riveting.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of curved face product riveting die set, it is characterised in that including at least one set riveting module, the riveting module includes recessed Mould and the corresponding drift vertically moved, the cavity plate include fixed cavity plate with can be recessed along the slip of spigot surface lifting moving Mould, is formed with the inclined rivet groove of relative level between the fixed cavity plate and slipping matrix；The slipping matrix is used for Rise to accept the rivet for being riveted curved face product and being placed in the riveted holes for being riveted curved face product before riveting, and in die sinking When will rivet complete curved face product and rivet jack-up.

2. curved face product riveting die set as claimed in claim 1, it is characterised in that the outside of the slipping matrix, which is provided with, to be used to supply The slipping matrix carries out the slide guide device of lifting carriage.

3. curved face product riveting die set as claimed in claim 2, it is characterised in that the exterior bottom of the slipping matrix is provided with use In to the lifting carriage of the slipping matrix apart from spacing slip stopping means.

4. curved face product riveting die set as claimed in claim 3, it is characterised in that the slip stopping means is described including being located at The protuberance of the spigot surface bottom of slipping matrix and the guiding for being located at the slide guide device coordinated with the protuberance Stop part on the downside of face.

5. curved face product riveting die set as claimed in claim 2, it is characterised in that the slide guide device and the slip are recessed The spigot surface of mould is inclined-plane, and the inclined-plane can intersect with the axis of the rivet groove in the bottom of the slipping matrix.

6. the curved face product riveting die set as described in claim any one of 1-5, it is characterised in that the bottom of the slipping matrix is set There is the push rod that can be vertically moved up or down.

7. curved face product riveting die set as claimed in claim 6, it is characterised in that the elastic jacking dress of bottom connection of the push rod Put.

8. curved face product riveting die set as claimed in claim 7, it is characterised in that the cavity plate is arranged on die block, The die block is arranged on die shoe by cavity plate backing plate；For controlling the push rod of the cavity plate lifting carriage to be located at institute In the stepped jogger hole for stating die block, and it is connected with the elastic jacking apparatus being located in cavity plate backing plate.

9. curved face product riveting die set as claimed in claim 8, it is characterised in that the drift is arranged on punch fixing plate, The punch fixing plate is connected by drift backing plate with upper bolster.

10. curved face product riveting die set as claimed in claim 9, it is characterised in that the riveting module is multigroup.