Positioning device for assisting in plate forming

Abstract

The invention provides a positioning device for assisting plate forming, the positioning device is used for assisting product positioning forming, a product is formed by combining a first part and a second part, the first part is provided with a concave first combining part, the second part is correspondingly provided with a second combining part, the auxiliary positioning device comprises a positioning inner ring, a positioning outer ring and a positioning inner ring, the positioning protruding edge is arranged on the outer wall of the blocking wall in a surrounding mode, the blocking wall comprises a first blocking wall body and a second blocking wall body, the size of the outer wall of the first blocking wall body is matched with the size of the inner wall of the opening end of the product, and a positioning groove is formed in the outer wall of the first blocking wall body; the inner wall of the fixing outer ring is matched with the outer wall of the positioning inner ring, and the fixing outer ring covers the outer sides of the positioning inner ring and the opening end of the product and is used for locking and fixing the product and the positioning inner ring. All parts of a preformed product can be combined and positioned, the fixing effect is good, displacement of all the combined parts in the forming process is avoided, and the product yield is increased.

Description

[Technical Field]

[0001] This invention relates to the field of sheet metal forming technology, and in particular to a positioning device for assisting sheet metal forming. [Background Technology]

[0002] When using thermoplastic sheets such as carbon fiber plates to prepare deep cavity or container products, the products often cannot be formed in one step due to the insufficient tensile and ductile properties of the sheets. It is necessary to first disassemble the product into two or more parts and form them separately, and then combine the parts into one piece and place it in a mold for hot pressing. Therefore, during the hot pressing process of placing the assembled parts into the mold, each part must be accurately positioned and fixed, otherwise displacement and deformation can easily occur, resulting in defective products.

[0003] In view of this, the present invention provides a positioning device for assisting in the forming of sheet metal to solve the above problems. [Summary of the Invention]

[0004] To address the problem that when molding deep-cavity or container-type products, it is usually necessary to disassemble the product into several parts, assemble the disassembled parts, and then place them into a thermoforming mold for thermoforming, but the parts of the product are prone to displacement during the molding process, leading to product defects, this invention provides a positioning device to assist in sheet metal forming and solve the above problems.

[0005] The solution to the technical problem of this invention is: a positioning device for assisting in the forming of sheet metal, used to assist in the positioning and forming of a product, wherein the product has an annular opening and a deep cavity, and the product is formed by combining a first part and a second part, characterized in that the edge of the first part for joining the second part has a first joining portion, the first joining portion being concave inward compared to the outer surface of the first part, and the edge of the second part for joining the first part correspondingly has a second joining portion that matches the first joining portion, the auxiliary positioning device being installed between the upper mold and the lower mold of the mold, the auxiliary positioning device comprising:

[0006] The positioning inner ring includes a baffle and a positioning protrusion. The positioning protrusion is arranged around the outer wall of the baffle. The baffle includes a first baffle and a second baffle. The outer wall of the first baffle matches the inner wall of the product opening end. A positioning groove is provided on the outer wall of the first baffle. The width of the positioning groove matches the width of the overlapping first joint and second joint.

[0007] A fixed outer ring is provided, the inner wall of which matches the outer wall of the positioning inner ring, and the fixed outer ring is provided on the outside of the positioning inner ring and the first part and the second part near the opening end of the product.

[0008] Preferably, the first joint and the second joint are respectively provided with a protruding first positioning part and a second positioning part near the product opening end, and the positioning protrusion is provided with a clearance groove on the side near the first baffle corresponding to the positioning groove, and the clearance groove matches the overlapping first positioning part and second positioning part.

[0009] Preferably, the fixed outer ring includes a first fixed outer ring and a second fixed outer ring, the first fixed outer ring and the second fixed outer ring are detachably connected, and the inner walls of the first fixed outer ring and the second fixed outer ring are provided with a first receiving groove and a second receiving groove corresponding to the position of the positioning protrusion.

[0010] Preferably, the first fixed outer ring is provided with a first connecting block at both ends for connecting with the second fixed outer ring, and the second fixed outer ring is provided with a second connecting block at both ends for connecting with the first fixed outer ring. The first connecting block and the second connecting block are respectively provided with a first mounting hole and a second mounting hole at corresponding positions. The first fixed outer ring and the second fixed outer ring are connected and locked by screws passing through the second mounting hole and the first mounting hole.

[0011] Preferably, the positioning groove has guide slopes at both ends.

[0012] The beneficial effects of the present invention are that the positioning device for assisting sheet metal forming can position the various parts of the pre-formed product in combination, with good fixing effect, avoiding the occurrence of adverse situations such as displacement of the combined parts during hot pressing in the mold, and improving product yield. [Attached Image Description]

[0013] Figure 1 This is a schematic diagram of the structure of the finished product formed in an embodiment of the present invention.

[0014] Figure 2 This is an exploded diagram showing the first and second parts that make up the product.

[0015] Figure 3 This is an exploded view of a positioning device for assisting in the forming of sheet metal in an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram showing the positioning of the first and second parts within the positioning inner ring.

[0017] Figure 5 This is a schematic diagram of a positioning device for assisting in the forming of sheet metal according to the present invention, which positions and fixes the first part and the second part.

Detailed Implementation Methods

[0018] To further illustrate the technical means and effects of the present invention, the following detailed description is provided in conjunction with the embodiments of the present invention and their accompanying drawings.

[0019] This invention provides a positioning device for assisting in sheet metal forming, used to assist in product positioning and forming. The finished product 1 has an annular opening 10 and a deep cavity. The product is formed by combining a first part 11 and a second part 12. The edge of the first part 11 that is to be combined with the second part 12 has a first joining portion 110. The first joining portion 110 is concave inward compared to the outer surface of the first part 11. The edge of the second part 12 that is to be combined with the first part 11 has a corresponding second joining portion 120 that matches the first joining portion 110. The first part 11 and the second part 12 are combined by overlapping the first joining portion 110 through the second joining portion 120. The auxiliary positioning device is installed between the upper mold and the lower mold (not shown in the figure). The auxiliary positioning device includes:

[0020] The positioning inner ring 2 includes a baffle wall and a positioning protrusion 20. The positioning protrusion 20 surrounds the outer wall of the baffle wall and divides the baffle wall into a first baffle wall 21 and a second baffle wall 22. The outer wall of the first baffle wall 21 matches the inner wall of the product opening end. A positioning groove 210 is provided on the outer wall of the first baffle wall 21. The first part 11 and the second part 12 overlap and are positioned on the positioning inner ring 2. At this time, the ends of the first part 11 and the second part 12 near the product opening 10 are closely attached to the end of the positioning protrusion 20 near the first baffle wall 21 and the outer wall of the first baffle wall 21. The overlapping portions of the first joint 110 and the second joint 120 near the product opening end are positioned and accommodated in the positioning groove 210. The width of the positioning groove 210 matches the width of the overlapping portions of the first joint 110 and the second joint 120 near the product opening end. The positioning inner ring 2 is used to shape and position the overlapping first part 11 and the second part 12.

[0021] A fixed outer ring 3 is provided, the inner wall of which matches the outer wall of the positioning inner ring 2. The fixed outer ring 3 covers the positioning inner ring 2 and the first part 11 and the second part 12 near the product opening end, and is used to fix the overlapping first part 11, the second part 12 and the positioning inner ring 2 to prevent displacement.

[0022] The first joint 110 and the second joint 120 are respectively provided with a protruding first positioning part 111 and a second positioning part 121 near the product opening end. The positioning protrusion 20 is provided with a clearance groove 200 on the side near the first baffle 21 corresponding to the positioning groove 210. The clearance groove 200 matches the overlapping first positioning part 111 and second positioning part 121. The clearance groove 200 is used to accommodate and position the first positioning part 111 and the second positioning part 121, thereby enhancing the positioning stability of the first part 11 and the second part 12.

[0023] The fixed outer ring 3 includes a first fixed outer ring 30 and a second fixed outer ring 31. The first fixed outer ring 30 and the second fixed outer ring 31 are detachably connected. The inner walls of the first fixed outer ring 30 and the second fixed outer ring 31 are provided with a first receiving groove 300 and a second receiving groove 310 corresponding to the position of the positioning protrusion 20. After the first fixed outer ring 30 and the second fixed outer ring 31 are connected, the positioning protrusion 20 is accommodated in the first receiving groove 300 and the second receiving groove 310.

[0024] The first fixing outer ring 30 is provided with a first connecting block 301 at both ends for connecting with the second fixing outer ring 31, and the second fixing outer ring 31 is provided with a second connecting block 310 at both ends for connecting with the first fixing outer ring 30. The first connecting block 301 and the second connecting block 311 are respectively provided with a first mounting hole 302 and a second mounting hole 312 at corresponding positions. The first fixing outer ring 30 and the second fixing outer ring 31 are connected and locked by screws 32 passing through the second mounting hole 312 and the first mounting hole 302.

[0025] The positioning groove 210 has guide slopes 211 at both ends, which are used to guide the overlapping part of the first joint 110 and the second joint 120 near the product opening end to be embedded in the positioning groove 210.

[0026] The working process of this invention is as follows: First, the first connecting portion 110 of the first part 11 and the second connecting portion 120 of the second part 12 are overlapped. Then, the overlapping portions of the first part 11 and the second part 12 near the product opening are placed on the positioning inner ring 20, so that the overlapping portions of the first part 11 and the second part 12 near the product opening are tightly attached to the positioning protrusion 20 near the end of the first baffle 21 and the outer wall of the first baffle 21. Then, the positions of the first part 11 and the second part 12 are adjusted so that the overlapping portions of the first connecting portion 110 and the second connecting portion 120 near the product opening are embedded in the positioning groove 210 on the first baffle 21 for positioning. Then, the first fixing outer ring 30 and the second fixing outer ring 31 are connected and the... The positioning inner ring 20, the first part 11, and the second part 12 are locked and fixed. Then, the positioning device and the combined first part 11 and second part 12 are placed together between the upper and lower molds of the mold (not shown in the figure). The upper and lower molds are provided with a groove that cooperates with the auxiliary positioning device. Next, an air bag is placed in the positioning inner ring 20. The mold is closed and high-pressure gas is injected into the air bag. The air bag expands and squeezes the first part 11 and the second part 12 towards the mold core. At the same time, the mold heats up, and the resin of the overlapping part of the first part 11 and the second part 12 melts and bonds together. After molding, the mold is opened and the combined first part 11 and the second part 12 are taken out. Then, the first positioning part 111 and the second positioning part 121 are cut off to obtain the finished product 1.

[0027] The beneficial effects of this invention are that the positioning device for assisting sheet forming is applicable to the hot pressing mold of air bag. This invention can position the various parts of the pre-formed product together, with good fixing effect, avoiding the occurrence of adverse situations such as displacement of the assembled parts during the hot pressing process, and improving the product yield.

[0028] It should be noted that the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments based on the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A positioning device for assisting in sheet metal forming, used to assist in product positioning and forming, the product having an annular opening and a deep cavity, the product being formed by combining a first part and a second part, the edge of the first part for joining the second part having a first joining portion, the first joining portion being concave inward compared to the outer surface of the first part, the edge of the second part for joining the first part correspondingly having a second joining portion that mates with the first joining portion, characterized in that, The auxiliary positioning device is installed between the upper and lower molds. The auxiliary positioning device includes: The positioning inner ring includes a baffle and a positioning protrusion. The positioning protrusion is arranged around the outer wall of the baffle. The baffle includes a first baffle and a second baffle. The outer wall of the first baffle matches the inner wall of the product opening end. A positioning groove is provided on the outer wall of the first baffle. The width of the positioning groove matches the width of the overlapping first joint and second joint. A fixed outer ring is provided, the inner wall of which matches the outer wall of the positioning inner ring, and the fixed outer ring is provided on the outside of the positioning inner ring and the first part and the second part near the opening end of the product.

2. The positioning device for assisting in sheet metal forming as described in claim 1, characterized in that: The first joint and the second joint are respectively provided with a protruding first positioning part and a second positioning part near the product opening end. The positioning protrusion is provided with a clearance groove on the side near the first baffle wall, and the clearance groove matches the overlapping first positioning part and second positioning part.

3. The positioning device for assisting in sheet metal forming as described in claim 1, characterized in that: The fixed outer ring includes a first fixed outer ring and a second fixed outer ring. The first fixed outer ring and the second fixed outer ring are detachably connected. The inner walls of the first fixed outer ring and the second fixed outer ring are provided with a first receiving groove and a second receiving groove corresponding to the position of the positioning protrusion.

4. The positioning device for assisting in sheet metal forming as described in claim 3, characterized in that: The first fixed outer ring is provided with a first connecting block at both ends for connecting with the second fixed outer ring, and the second fixed outer ring is provided with a second connecting block at both ends for connecting with the first fixed outer ring. The first connecting block and the second connecting block are respectively provided with a first mounting hole and a second mounting hole at corresponding positions. The first fixed outer ring and the second fixed outer ring are connected and locked by screws passing through the second mounting hole and the first mounting hole.

5. The positioning device for assisting in sheet metal forming as described in claim 1, characterized in that: The positioning groove is provided with guide slopes at both ends.

Images