CN218925984U - Second-level material pressing mechanism of edge covering assembly - Google Patents
Second-level material pressing mechanism of edge covering assembly Download PDFInfo
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- CN218925984U CN218925984U CN202223356747.XU CN202223356747U CN218925984U CN 218925984 U CN218925984 U CN 218925984U CN 202223356747 U CN202223356747 U CN 202223356747U CN 218925984 U CN218925984 U CN 218925984U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model aims to provide a secondary material pressing mechanism of an edge covering assembly, which comprises a fixed base, a knocking-out cylinder and a rectangular spring; the fixed base is of a hollow cylinder structure, an upper sealing plate is sealed and packaged on an opening at the upper end of the fixed base, the knocking cylinder is arranged in the fixed base, and the outer circular surface of the knocking cylinder is in clearance fit with the inner circular surface of the fixed base; the lower port of the fixed base is provided with a cylinder outlet, the lower part of the knocking cylinder is provided with two groups of chord tangent planes, the opening of the lower end of the fixed base is provided with a hook-type limiting plate, the knocking cylinder is surrounded to correspond to the outlet in the shape of the lower part of the knocking cylinder, and the knocking cylinder can slide out or back from the outlet; an elastic body block is arranged on the lower end of the knocking cylinder, a rectangular spring groove is arranged in the middle of the top surface of the knocking cylinder, and a rectangular spring is arranged between the bottom surface of the rectangular spring groove and the lower surface of the upper sealing plate. The utility model can better stabilize the outer plate part and reduce the position deviation of the assembly part in the lower die cavity.
Description
Technical Field
The utility model relates to the technical field of automobile body molds, in particular to a secondary material pressing mechanism of a binding assembly.
Background
In the process of machining and producing the parts by the edge covering die, an inner plate part and an outer plate part in the part of the edge covering assembly are required to be pressed and stabilized, then the part can be pre-bent by a pre-bending cutter block in the die, and finally the part is covered by a flattening cutter block of the upper die. At present, in the production process of an edge covering die in an automobile main engine factory, an outer plate pressing block device is mainly arranged on a material pressing device and used for pressing outer plate parts, but the mechanism has the following defects:
(1) The positioning guide pin and the inner plate part and the outer plate part of the assembly part are respectively designed in the material pressing device and the lower die of the edge covering die, a gap with the single side of 0.1mm is reserved between the positioning guide pin and the guide hole of the part according to the design standard, namely, after the assembly part is effectively positioned by the positioning guide pin of the die, the position deviation of 0.2mm can be maximally generated between the inner plate part and the outer plate part under the condition of not counting the punching deviation value of the part. When the edge covering die is used for production, an outer plate pressing block device and an inner plate pressing block on the material pressing device press an outer plate part and an outer plate part of an assembly part at the same time, so that the inner plate part cannot be adjusted in position along with the buckling action of the inner plate pressing block profile, the maximum position deviation of 0.2mm can be generated between the inner plate part and the outer plate part, and if a positioning guide pin hole of the part is deformed, the position deviation of the inner plate part and the outer plate part is larger;
(2) The upper outer plate pressing block device and the inner plate pressing block of the material pressing device press the outer plate part and the inner plate part at the same time, the assembly part is completely limited in the lower die and cannot move, and at the moment, certain position deviation exists on the inner plate part, so that the effective adjustment treatment cannot be achieved, the molded surface of the inner plate pressing block on the material pressing device cannot be completely overlapped with the molded surface of the inner plate part, the upper die continues to move downwards, and the molded surface of the inner plate part is dislocated, strongly pressed and deformed by the inner plate pressing block;
(3) The upper outer plate pressing block device and the inner plate pressing block of the pressing device press the outer plate part and the inner plate part at the same time, and the molded surfaces of the outer plate pressing block device and the inner plate pressing block have certain machining precision errors, so that the condition that only the inner plate pressing block presses and stabilizes the inner plate part when the die is closed can occur, and the outer plate pressing block presses the outer plate part; or only the outer plate pressing block device presses and stabilizes the outer plate part and the inner plate pressing block presses and presses the inner plate part, so that the assembly part cannot be produced after being completely pressed and stabilized, and the production quality of the assembly part is affected;
(4) The outer plate briquetting device is arranged on the press device, the press device is provided with at least 6 rectangular springs of SWF 60-XX model as pressure sources, and when the die is produced, the pressure sources and the press device can generate larger kinetic energy under the action of self gravity, so that the outer plate briquetting device is easy to crush the molded surfaces of the parts;
(5) The outer plate briquetting device is arranged on the material pressing device, impact force generated during operation is large, the working face width of the polyurethane briquetting on the outer plate briquetting device is at least more than the range of 100mm in diameter to meet the strength requirement, for example, the automobile door assembly part and the luggage case assembly part may not have a space so wide that the outer plate briquetting device is designed, only the inner plate part is pressed stably during assembly part production, and the outer plate part is also stressed and is in movement, so that the production quality of the part can be influenced.
Therefore, a further improvement on the material pressing mechanism in the edge covering mold is needed to solve the above problems.
Disclosure of Invention
The utility model aims to provide a secondary material pressing mechanism of an edge covering assembly, which is characterized in that a cylinder is struck through clearance fit installation, a chord tangent plane which is bilaterally symmetrical is arranged on the cylinder, a hook-shaped limiting plate is matched to form a stable limiting structure, and a rectangular spring matching structure is used for realizing a stable elastic supporting structure which is installed on an upper die holder, and is contacted with and pressed against an outer plate part firstly along with downward movement of an upper die, so that the outer plate part can be better stabilized, the position deviation of the assembly part in a lower die cavity is reduced integrally, the molded surface of the assembly part is prevented from being crushed, and the problem of insufficient contour loading precision in assembly part production is avoided.
The secondary material pressing mechanism of the edge covering assembly comprises a fixed base, a striking cylinder and a rectangular spring;
the fixed base is of a hollow cylinder structure, an upper sealing plate is sealed and packaged on an opening at the upper end of the fixed base, the knocking cylinder is arranged in the fixed base, and the outer circular surface of the knocking cylinder is in clearance fit with the inner circular surface of the fixed base;
the lower port of the fixed base is provided with a cylinder outlet, the lower part of the knockdown cylinder is provided with two groups of mutually parallel and symmetrical chord tangent planes, the opening of the lower end of the fixed base is provided with a hook-shaped limiting plate, the hook-shaped limiting plate is arranged corresponding to the chord tangent plane, the knockdown cylinder is surrounded to correspond to the outlet of the lower shape of the knockdown cylinder, and the knockdown cylinder can slide out or back from the outlet; the lower end of the knocking cylinder is provided with an elastomer block, the middle part of the top surface of the knocking cylinder is provided with a rectangular spring groove, and a rectangular spring is arranged between the bottom surface of the rectangular spring groove and the lower surface of the upper sealing plate.
Lubricating oil is filled in the fixed base; the outer circular surfaces of the striking cylinder, which are positioned on two sides of the chord tangent plane, are respectively provided with more than one group of oil guide grooves I which penetrate through the upper end surface and the lower end surface along the axial direction of the striking cylinder.
The excircle surface of the lower part of the knocking cylinder is provided with more than one group of annular oil guide grooves I, and each group of annular oil guide grooves I are uniformly distributed along the axial interval of the annular oil guide grooves I and are communicated with each group of oil guide grooves I.
The cylindrical drum is characterized in that more than one group of annular oil guide grooves II are respectively arranged on the outer circular surfaces of the two sides of the chord tangential surface, and the groups of annular oil guide grooves II are uniformly distributed along the axial interval and are communicated with the groups of oil guide grooves I.
An X-shaped oil guide groove II is arranged in the middle of the chord tangent plane.
The upper end of the outer circular surface of the fixed base is provided with a mounting ring, and the mounting ring is locked and mounted on the upper die holder through a screw rod and a pin.
The elastic body block is a high-strength rubber block and is arranged at the lower end of the knocking cylinder through a connecting block.
The diameter of the elastic body block is larger than that of the rectangular spring.
When the cylindrical compression rectangular spring is knocked out to reach the limit position, more than 1/2 of the length of the rectangular spring is positioned in the rectangular spring groove.
The ejection work of the mechanism of the utility model depends on a rectangular spring as a force source, the pre-pressure of the rectangular spring is about 25 kg in the ejection state of the mechanism, the pressure of the rectangular spring in the compression state of the mechanism is about 180 kg, and the high-pressure glue pressing block cannot easily crush an outer plate part according to the pressure.
According to the utility model, the ejection stroke of the knocking cylinder is limited through the two groups of hook-shaped limiting plates corresponding to the chord tangential planes, so that the impact force generated by the ejection of the knocking cylinder can be balanced better, meanwhile, the knocking cylinder is in clearance fit with the inner circle of the fixed base, the fixed base forms a guiding effect on the knocking cylinder, the stability of the telescopic sliding of the knocking cylinder can be ensured, and the pressure stability is ensured.
In the utility model, when the rectangular spring is in a compressed state, most of the rectangular spring is positioned in the spring groove in the knocking cylinder, so that the possibility of deformation of the upper part of the spring can be well limited, the spring pressure is more stable and uniform, and the stability of pressing parts is ensured to be optimal.
In the utility model, the profile width of the elastic body block is larger than the diameter of the rectangular spring, so that the stress surface of the high-strength adhesive pressing block is prevented from being too narrow to be bent and deformed.
According to the utility model, the fixed base is filled with lubricating oil, and meanwhile, the knocking cylinder is provided with the oil guide groove I, the annular oil guide groove I and the annular oil guide groove II, so that the lubricating oil in the knocking cylinder can fully cover the surface of the knocking cylinder, friction force can be reduced, and heat generation is reduced. In the preferred scheme of the utility model, the X-shaped oil guide groove II is arranged on the chord tangent plane, and when the cylinder is struck out and stretches out of the fixed base, the lubricating oil slowly flows, so that the lubricating oil can be ensured to better cover the whole chord tangent plane.
The utility model has scientific and reasonable structural design, simple and convenient operation and reliable operation, and is suitable for occasions such as automatic production lines or manual production lines.
Drawings
Fig. 1 is a schematic structural diagram of a secondary pressing mechanism of an edge covering assembly according to an embodiment;
FIG. 2 is a cross-sectional view of A-A of a secondary swage of an embodiment of a hemming assembly;
FIG. 3 is a schematic view of the structure of the knock-out cylinder of the embodiment;
fig. 4 is a cross-sectional view of the secondary swage mechanism of the hemming assembly of embodiment 2 in a clamped state.
The numbers and designations in the figures are as follows:
100-upper die holder, 200-pre-bending cutter block, 300-flattening cutter block, 400-inner plate pressing block, 500-material pressing device, 600-positioning guide pin, 700-lower die holder, 800-outer plate part and 900-inner plate part;
1-fixed base, 2-out cylinder, 3-rectangular spring, 4-upper sealing plate, 5-hook-shaped limiting plate, 6-cylinder outlet, 7-rectangular spring groove, 8-elastomer block, 9-oil guiding groove I, 10-annular oil guiding groove I, 11-chord section 12-oil guiding groove II, 13-mounting ring, 14-screw, 15-pin, 16-connecting block and 17-annular oil guiding groove II.
Detailed Description
Example 1
The utility model is described in detail below with reference to the drawings and examples.
Example 1
As shown in fig. 1-3, the secondary material pressing mechanism of the edge covering assembly comprises a fixed base 1, a knocking-out cylinder 2 and a rectangular spring 3;
the fixed base 1 is of a hollow cylinder structure, an upper sealing plate 4 is sealed and packaged on an opening at the upper end of the fixed base 1, the knocking cylinder 2 is arranged in the fixed base 1, and the outer circular surface of the knocking cylinder 2 is in clearance fit with the inner circular surface of the fixed base 1;
the lower port of the fixed base 1 is provided with a cylinder outlet 6, the lower part of the knockdown cylinder 2 is provided with two groups of mutually parallel and symmetrical chord tangent planes 11, the opening of the lower end of the fixed base 1 is provided with a hook-shaped limiting plate 5, the hook-shaped limiting plate 5 is arranged corresponding to the position of the chord tangent plane 11, the knockdown cylinder 2 is surrounded to correspond to the outlet of the lower shape of the knockdown cylinder 2, and the knockdown cylinder 2 can slide out or back from the outlet; the lower end of the knocking cylinder 2 is provided with an elastomer block 8, the elastomer block 8 is a high-strength rubber block, and the elastomer block 8 is arranged at the lower end of the knocking cylinder 2 through a connecting block 16; a rectangular spring groove 7 is formed in the middle of the top surface of the knocking cylinder 2, and a rectangular spring 3 is arranged between the bottom surface of the rectangular spring groove 7 and the lower surface of the upper sealing plate 4; the diameter of the elastic body block 8 is larger than that of the rectangular spring 3; when the knock-out cylinder 2 compresses the rectangular spring 3 to the limit position, more than 1/2 of the length of the rectangular spring 3 is in the rectangular spring groove 7.
Lubricating oil is filled in the fixed base 1; the excircle surfaces of the knocking cylinder 2, which are positioned at the two sides of the chord tangent plane 11, are respectively provided with more than one group of oil guide grooves I9 which penetrate through the upper end surface and the lower end surface along the axial direction of the excircle surfaces.
The outer circular surface of the lower part of the knocking cylinder 2 is provided with more than one group of annular oil guide grooves I10, and each group of annular oil guide grooves I10 are uniformly distributed along the axial interval and are communicated with each group of oil guide grooves I9; the excircle surfaces of the knocking cylinder 2, which are positioned at the two sides of the chord tangent plane 11, are respectively provided with more than one group of annular oil guide grooves II 17, and each group of annular oil guide grooves II 17 are uniformly distributed along the axial interval and are communicated with each group of oil guide grooves I9; the middle part of the chord tangent plane 11 is provided with an X-shaped oil guiding groove II 12.
The upper end of the outer circular surface of the fixed base 1 is provided with a mounting ring 13, and the mounting ring 13 is mounted on the upper die holder 100 in a locking manner through a screw 14 and a pin 15.
Example 2
As shown in fig. 4, the mechanism of embodiment 1 is mounted on the upper die holder 100 for pressing and stabilizing the outer plate part, and the inner plate presser 400 on the presser is used for pressing and stabilizing the inner plate part. On the ground fixture, a robot or a person always has certain position deviation when placing the inner plate part into the outer plate part, the position deviation of the inner plate part in the assembly part is firstly adjusted by utilizing the positioning guide pin 600 and the inner plate pressing block 400 on the pressing device 500, and then the outer plate part is pressed and stabilized by the secondary pressing mechanism of the edge covering assembly, so that the dislocation of the inner plate part and the pressure injury caused by the molded surface of the inner plate pressing block are avoided.
Claims (9)
1. The secondary material pressing mechanism of the edge covering assembly comprises a fixed base (1), a striking cylinder (2) and a rectangular spring (3); the method is characterized in that:
the fixed base (1) is of a hollow cylinder structure, an upper sealing plate (4) is sealed and packaged on an opening at the upper end of the fixed base (1), the knocking cylinder (2) is arranged in the fixed base (1), and the outer circular surface of the knocking cylinder (2) is in clearance fit with the inner circular surface of the fixed base (1);
the lower port of the fixed base (1) is provided with a cylinder outlet (6), the lower part of the knocking cylinder (2) is provided with two groups of mutually parallel and symmetrical chord cut surfaces (11), the opening of the lower end of the fixed base (1) is provided with a hook-shaped limiting plate (5), the hook-shaped limiting plate (5) is arranged corresponding to the position of the chord cut surface (11), the knocking cylinder (2) is surrounded to correspond to the outlet of the lower shape of the knocking cylinder (2), and the knocking cylinder (2) can slide to extend or retract from the outlet; the lower end of the knocking cylinder (2) is provided with an elastomer block (8), the middle part of the top surface of the knocking cylinder (2) is provided with a rectangular spring groove (7), and a rectangular spring (3) is arranged between the bottom surface of the rectangular spring groove (7) and the lower surface of the upper sealing plate (4).
2. The secondary nip of a hemming assembly of claim 1 wherein: lubricating oil is filled in the fixed base (1); the excircle surfaces of the knocking cylinder (2) positioned on two sides of the chord tangent plane (11) are respectively provided with more than one group of oil guide grooves I (9) penetrating through the upper end surface and the lower end surface along the axial direction of the excircle surfaces.
3. The secondary nip of a hemming assembly of claim 2 wherein:
the excircle surface of the lower part of the knocking cylinder (2) is provided with more than one group of annular oil guide grooves I (10), and each group of annular oil guide grooves I (10) are uniformly distributed along the axial interval of the annular oil guide grooves I (10) and are communicated with each group of oil guide grooves I (9).
4. The secondary nip of a hemming assembly of claim 2 wherein: the cylindrical drum (2) is characterized in that more than one group of annular oil guiding grooves II (17) are respectively arranged on the outer circular surfaces of the two sides of the chord tangent plane (11), and each group of annular oil guiding grooves II (17) are uniformly distributed along the axial interval of the cylindrical drum and are communicated with each group of oil guiding grooves I (9).
5. The secondary nip structure of the hemming assembly of claim 4 wherein: an X-shaped oil guide groove II (12) is arranged in the middle of the chord tangent plane (11).
6. The secondary nip of a hemming assembly of claim 1 wherein: the upper end of the outer circular surface of the fixed base (1) is provided with a mounting ring (13), and the mounting ring (13) is mounted on the upper die holder (100) in a locking manner through a screw (14) and a pin (15).
7. The secondary nip of a hemming assembly of claim 1 wherein: the elastic body block (8) is a high-strength rubber block, and the elastic body block (8) is arranged at the lower end of the knocking cylinder (2) through the connecting block (16).
8. The secondary nip of a hemming assembly of claim 1 wherein: the diameter of the elastic body block (8) is larger than that of the rectangular spring (3).
9. The secondary nip of a hemming assembly of claim 1 wherein: when the knock-out cylinder (2) compresses the rectangular spring (3) to reach the limit position, more than 1/2 of the length of the rectangular spring (3) is positioned in the rectangular spring groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223356747.XU CN218925984U (en) | 2022-12-14 | 2022-12-14 | Second-level material pressing mechanism of edge covering assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223356747.XU CN218925984U (en) | 2022-12-14 | 2022-12-14 | Second-level material pressing mechanism of edge covering assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218925984U true CN218925984U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223356747.XU Active CN218925984U (en) | 2022-12-14 | 2022-12-14 | Second-level material pressing mechanism of edge covering assembly |
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| Country | Link |
|---|---|
| CN (1) | CN218925984U (en) |
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- 2022-12-14 CN CN202223356747.XU patent/CN218925984U/en active Active
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