Four-side sliding block wrapping type shaping tool for sintered product

Abstract

The utility model discloses a sintering product four-side sliding block wrapping type shaping tool, which belongs to the technical field of shaping tools and comprises an upper insert fixing plate and a lower insert fixing plate which are matched with each other, a lower die insert is mounted in the middle of the lower insert fixing plate, a product is placed in the lower die insert, and the upper insert fixing plate and the lower insert fixing plate are matched with each other. Two extrusion assemblies are arranged on the outer side of the product, a supporting assembly is arranged at the bottom of the product, and one extrusion assembly comprises two symmetrically-arranged first sliding block sets and a fourth sliding block set arranged on the two first sliding block sets. According to the tool, the four-side sliding block external extrusion and internal support type design is adopted, the outer side sliding block controls the appearance size exceeding the upper limit of a product, the internal support core controls the size of the product through limiting or over-supporting, the tool can correct the out-of-tolerance size of the product with a hydraulic machine as a power source, the product is evenly stressed through wrapping type shaping, and the product quality is improved. And after shaping, the size consistency is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaping tooling, and in particular relates to a four-sided slider-wrapped shaping tooling for sintered products. Background Art

[0002] For some special products made using the sintering process, deformation occurs after sintering. The product expands outward as a whole, some of its internal width dimensions exceed the upper limit, the external local width exceeds the upper limit, the total length dimension exceeds the upper limit, and the special functional dimensions are out of tolerance. There are certain errors in the size and dimensions of the sintered blank, which affects the normal use of the product.

[0003] In the existing technology, the conventional shaping method for blanks with non-compliant dimensions and sizes is mostly to manually shape the product to reduce or expand the out-of-tolerance dimensions, and to correct the local out-of-tolerance dimensions. The manual shaping is time-consuming and labor-intensive, and there is a problem of product scrapping due to cracking during correction. Utility Model Content

[0004] The purpose of the utility model is to provide a four-sided slider-wrapped shaping tool for sintered products to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-sided slider-wrapped shaping tool for sintered products, comprising an upper insert fixing plate and a lower insert fixing plate that cooperate with each other, a lower mold insert is installed at the middle position of the lower insert fixing plate, and a product is placed in the lower mold insert, two groups of extrusion assemblies are provided on the outside of the product, and a support assembly is provided at the bottom of the product, wherein one group of the extrusion assemblies comprises two symmetrically arranged first slider groups and a fourth slider group arranged on the two first slider groups, and the other group of the extrusion assemblies comprises two symmetrically arranged third slider groups and a second slider group arranged on the two third slider groups, the four sides of the lower insert fixing plate are provided with sliding grooves for the two groups of extrusion assemblies to slide, and slider shovel bases are also provided on the outsides of the first slider group and the third slider group;

[0006] The support assembly includes a symmetrically arranged first inner support core and a fifth inner support core, as well as a symmetrically arranged second inner support core and a fourth inner support core. The first inner support core, the second inner support core, the fourth inner support core and the fifth inner support core are arranged in sequence at the four sides of the bottom of the product, and a third inner support core is installed on the outside of the second inner support core and the fourth inner support core.

[0007] Preferably, an upper mold cover plate is installed on the top of the upper insert fixing plate, and at least four guide column and guide sleeve groups are installed between the upper insert fixing plate and the lower insert fixing plate.

[0008] Preferably, two connecting plates and a lower mold cover plate are installed at the bottom of the lower insert fixing plate, and a spring fixing assembly is provided between the two connecting plates.

[0009] Preferably, both of the connecting plates are provided with wedge-shaped grooves, an inner support wedge is wedged in the wedge-shaped groove, and the inner support wedge is in contact with the lower mold insert.

[0010] Preferably, a wedge fixing pin is provided through one of the connecting plates, and a fixing hole corresponding to the wedge fixing pin is provided on the inner supporting wedge.

[0011] Preferably, an upper mold insert that matches the lower mold insert is installed at the bottom of the upper mold insert fixing plate.

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

[0013] The utility model adopts a four-sided slider external extrusion and internal support design. The outer slider controls the product's external dimensions that exceed the upper limit, and the inner support core controls the product size by limiting or over-supporting. The tooling can correct the product's out-of-tolerance dimensions by using a hydraulic press as a power source. The wrapped shaping makes the product evenly stressed, and the size consistency after shaping is good, which solves the problem of dimensional out-tolerance caused by product deformation after sintering, provides a better material guarantee for the stability of subsequent processes, and the improvement of the process avoids the use of manual correction, saves product manufacturing costs and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 The explosion of the utility model Figure 1 ;

[0016] Figure 3 The explosion of the utility model Figure 2 ;

[0017] Figure 4 This is an exploded view of the limit assembly of the utility model.

[0018] In the figure: 1-upper mold cover; 2-upper insert fixing plate; 3-upper mold insert; 4-slider shovel base; 5-first slider group; 6-second slider group; 7-product; 8-lower insert fixing plate; 9-lower mold insert; 10-first inner support core; 11-second inner support core; 12-lower mold cover; 13-spring fixing assembly; 14-angled wedge fixing pin; 15-guide column and guide sleeve assembly; 16-inner support angled wedge; 17-third inner support core; 18-fourth inner support core; 19-fifth inner support core; 20-third slider group; 21-fourth slider group; 22-connecting plate; 23-wedge groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-4 As shown, the utility model provides the following technical solutions: a four-sided slider-wrapped shaping tool for sintered products, comprising an upper insert fixing plate 2 and a lower insert fixing plate 8 that cooperate with each other, a lower mold insert 9 is installed at the middle position of the lower insert fixing plate 8, and a product 7 is placed in the lower mold insert 9, two groups of extrusion components are provided on the outside of the product 7, and a supporting component is provided at the bottom of the product 7, wherein one group of extrusion components comprises two symmetrically arranged first slider groups 5 and a fourth slider group 21 arranged on the two first slider groups 5, and the other group of extrusion components comprises two symmetrically arranged third slider groups 20 and a second slider group 6 arranged on the two third slider groups 20, and sliding grooves for sliding of the two groups of extrusion components are opened on the four sides of the lower insert fixing plate 8, and a slider shovel base 4 is also provided on the outside of the first slider group 5 and the third slider group 20;

[0021] The supporting assembly includes a symmetrically arranged first inner support core 10 and a fifth inner support core 19 and a symmetrically arranged second inner support core 11 and a fourth inner support core 18. The first inner support core 10, the second inner support core 11, the fourth inner support core 18 and the fifth inner support core 19 are arranged in sequence at the four sides of the bottom of the product 7, and the third inner support core 17 is installed on the outside of the second inner support core 11 and the fourth inner support core 18.

[0022] In view of the above, when using the four-sided slider wrapped shaping tooling for the sintered product, pressure is applied by an external hydraulic press to close the mold of the upper insert fixing plate 2 and the lower insert fixing plate 8, and the slider shovel base 4 is squeezed inward, so that the first slider group 5 and the fourth slider group 21 as well as the second slider group 6 and the third slider group 20 slide inward, squeezing the product 7 on the lower mold insert 9. At the same time, the first inner support core 10, the second inner support core 11, the fourth inner support core 18 and the fifth inner support core 19 at the bottom of the product 7 are supported inward, so as to apply 10T pressure to the product 7 and correct the deformation of the product.

[0023] Two connecting plates 22 and a lower die cover plate 12 are installed at the bottom of the lower insert fixing plate 8 . The two connecting plates 22 are installed between the lower insert fixing plate 8 and the lower die cover plate 12 . A spring fixing assembly 13 is provided between the two connecting plates 22 .

[0024] A wedge-shaped groove 23 is formed on each of the two connecting plates 22 . An inner support wedge 16 is wedged in the wedge-shaped groove 23 , and the inner support wedge 16 abuts against the lower mold insert 9 .

[0025] A wedge fixing pin 14 is provided through one of the connecting plates 22 , and a fixing hole corresponding to the wedge fixing pin 14 is provided on the inner supporting wedge 16 .

[0026] In view of the above, the tooling adopts a design of four-sided sliders (the first slider group 5 and the third slider group 20) plus a space-split slider insert (the second slider group 6 and the fourth slider group 21) to divide the main external dimensions of the product 7 into spatial regions, so that it can independently adjust the slider inserts (the second slider group 6 and the fourth slider group 21) according to the actual sintering size of the product 7, thereby achieving the effect of making the size of the product 7 qualified. The inner support core group (the first inner support core 10, the second inner support core 11, the fourth inner support core 21) is the same as the inner support core group (the first inner support core 10, the second inner support core 11, the fourth inner support core 21). The third inner support core 17, the fourth inner support core 18 and the fifth inner support core 19 are also divided into five contoured inserts to support and limit the interior of the product 7 or to over-support it. The height of the inner support wedge 16 can also be adjusted to adjust the inner support effect (the inner support wedge 16 has a single-sided slope of 5°, and its bottom is raised to increase the inner support size, and the bottom is ground down to reduce the inner support size). If the size of a certain surface of the product is out of tolerance, the height of the stress-bearing surface of the inner support core can be adjusted (welding or grinding) to make the local size corrected and qualified.

[0027] Specifically, such as Figure 1-Figure 3 As shown, in the present invention, an upper mold cover plate 1 is installed on the top of the upper insert fixing plate 2, and at least four guide column and guide sleeve groups 15 are installed between the upper insert fixing plate 2 and the lower insert fixing plate 8. The guide column and guide sleeve groups 15 play a guiding role when the upper insert fixing plate 2 and the lower insert fixing plate 8 are closed, ensuring that the upper insert fixing plate 2 and the lower insert fixing plate 8 will not be misaligned.

[0028] Specifically, such as Figure 2 As shown, in the present invention, an upper mold insert 3 that matches the lower mold insert 9 is installed at the bottom of the upper mold insert fixing plate 2, which can better apply pressure to the product 7.

[0029] The shaping tooling of the utility model is composed of bolt connections, with a spring placed in the middle to return the shaping tooling to its state. The pressure is provided by a hydraulic press. At room temperature, a mold installed on the hydraulic press applies a 10T pressure to the workpiece to cause it to produce plastic deformation. The shaping is qualified by calculating the deformation amount.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-sided slider-wrapped shaping tool for sintered products, characterized by: The invention comprises an upper insert fixing plate (2) and a lower insert fixing plate (8) which cooperate with each other, a lower mold insert (9) is installed at the middle position of the lower mold insert fixing plate (8), and a product (7) is placed in the lower mold insert (9), two groups of extrusion components are provided on the outer side of the product (7), and a support component is provided at the bottom of the product (7), wherein one group of the extrusion components comprises two symmetrically arranged first slider groups (5) and a fourth slider group (21) arranged on the two first slider groups (5), and the other group of the extrusion components comprises two symmetrically arranged third slider groups (20) and a second slider group (6) arranged on the two third slider groups (20), and the four sides of the lower insert fixing plate (8) are provided with sliding grooves for the two groups of extrusion components to slide, and the outer sides of the first slider group (5) and the third slider group (20) are also provided with slider shovel bases (4); The support assembly includes a symmetrically arranged first inner support core (10) and a fifth inner support core (19) and a symmetrically arranged second inner support core (11) and a fourth inner support core (18). The first inner support core (10), the second inner support core (11), the fourth inner support core (18) and the fifth inner support core (19) are sequentially arranged at the four sides of the bottom of the product (7), and the third inner support core (17) is installed on the outside of the second inner support core (11) and the fourth inner support core (18).

2. The four-side slider-wrapped shaping tool for sintered products according to claim 1, characterized in that: An upper mold cover plate (1) is installed on the top of the upper insert fixing plate (2), and at least four guide column and guide sleeve groups (15) are installed between the upper insert fixing plate (2) and the lower insert fixing plate (8).

3. The four-side slider-wrapped shaping tool for sintered products according to claim 1, characterized in that: Two connecting plates (22) and a lower mold cover plate (12) are installed at the bottom of the lower insert fixing plate (8), and a spring fixing component (13) is arranged between the two connecting plates (22).

4. The four-side slider-wrapped shaping fixture for sintered products according to claim 3, characterized in that: A wedge-shaped groove (23) is provided on each of the two connecting plates (22), an inner supporting wedge (16) is wedged in the wedge-shaped groove (23), and the inner supporting wedge (16) abuts against the lower mold insert (9).

5. The four-side slider-wrapped shaping tool for sintered products according to claim 4, characterized in that: A wedge fixing pin (14) is provided through one of the connecting plates (22), and a fixing hole corresponding to the wedge fixing pin (14) is provided on the inner supporting wedge (16).

6. The four-side slider-wrapped shaping tool for sintered products according to claim 1, characterized in that: An upper mold insert (3) matching with a lower mold insert (9) is installed at the bottom of the upper mold insert fixing plate (2).

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