Automobile metal piece hole flanging machining die
By designing a machining mold for automotive metal parts that includes a hole-flipping mechanism, the problem of low efficiency in vertical hole flipping in existing technologies has been solved, achieving efficient and stable hole flipping operations and reducing the production defect rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-03-20
AI Technical Summary
Existing flanging dies have low efficiency in flanging holes at the vertical folded edge of parts, requiring multiple clamping operations, resulting in a high production defect rate.
A mold for turning holes in automotive metal parts has been designed, comprising an upper mold and a lower mold, with a built-in turning mechanism. The drive unit drives the side turning shaft and vertical rod to achieve automatic alignment and stable turning of the vertical hole. Combined with the sliding cooperation of the limit post and the push block, the stability of the hole and the production efficiency are ensured.
It enables efficient flanging of vertical holes, reduces the number of clamping operations, improves production efficiency, and ensures product quality.
Smart Images
Figure CN224010941U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to punch die design field especially is involved in a kind of automobile metal piece hole flanging machining die. BACKGROUND
[0002] Hole flanging is a kind of flanging processing in punch die forming, which turns the edge of the hole into a vertical edge, thereby enhancing the strength of the hole. In the prior art (publication number: CN111672953B, publication date: 2024.07.19), a sheet metal hole flanging tool is disclosed, which is connected with the nut by screwing the bolt through the second gasket, the second sleeve, the first sleeve and the first flanging die in sequence. By turning the bolt, the second gasket, the first sleeve and the first flanging die are driven to move axially along the second sleeve. The sheet metal part with a cut hole is extruded by the first flanging die to form a flanged hole structure, thereby achieving the technical effect of simplifying the operation of adding a flanged hole to the formed sheet metal part.
[0003] However, in the above-mentioned scheme and existing hole flanging die, due to the limitation of the punching direction, it is generally only possible to perform hole flanging processing on the hole positions on the plane. For the hole positions at the vertical flanging of the part, since the direction of the hole position is different from the closing direction, these hole positions need to be flanged one by one using special tools during hole flanging, which has very low flanging efficiency. Moreover, the part needs to be clamped multiple times to complete the hole flanging operation of all hole positions, resulting in a high defect rate of part production. UTILITY MODEL CONTENT
[0004] The utility model is provided to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
[0005] An automobile metal part hole flanging machining die includes an upper die and a lower die. The bottom side of the upper die is embedded with a cavity, and the top side of the lower die is fixedly installed with a core. The core is press-fitted into the cavity with a clearance;
[0006] The upper die is installed with a hole flanging mechanism, which includes a side hole flanging shaft, a vertical rod and a drive unit. The side of the cavity is shaped with a side hole, and the inner end of the side hole flanging shaft is inserted into the side hole with a clearance. A first sliding groove is formed in the upper die, and the drive unit is fixedly installed in the upper die. The drive unit drives the side hole flanging shaft to move left and right in the first sliding groove, and the vertical rod is fixedly installed at the bottom side of the side hole flanging shaft;
[0007] The side of the core is shaped with a hole flanging circular groove. When the upper die and the lower die are closed, the hole flanging circular groove is arranged inside the side hole;
[0008] The limit post is installed in the hole turning round groove in sliding fit, the bottom side of the core is formed with a second sliding groove, the upper end of the second sliding groove is communicated with the hole turning round groove, and a push block is installed in the second sliding groove in sliding fit.
[0009] When the driving assembly drives the side hole turning shaft to be inserted into the side hole, the vertical rod drives the push block to move.
[0010] Further, the driving assembly comprises a motor, a speed reducer, a screw rod and a sliding block, the motor and the speed reducer are fixedly installed on the outside of the upper die, a square groove is formed in the first sliding groove, the screw rod is rotatably installed in the square groove, a threaded hole is formed on the sliding block and the sliding block is screwedly installed on the screw rod, the motor drives the screw rod to rotate through the speed reducer, and the side hole turning shaft is integrally formed on the sliding block.
[0011] Further, the upper side of the lower die is formed with a shifting groove, the inner end of the shifting groove is communicated with the second sliding groove, and the push block is installed in the second sliding groove and the shifting groove in clearance fit.
[0012] Further, the outer end of the push block is formed with a dovetail groove, a dovetail block is installed in the dovetail groove in sliding fit, the outer side of the dovetail block is formed with a triangular limit block, a stepped groove is formed in the shifting groove, the triangular limit block is clamped in the stepped groove when sliding, and the vertical rod is abutted on the triangular limit block when moving inward.
[0013] Further, a strong magnet is embeddedly installed in the stepped groove, the triangular limit block is made of magnetically conductive metal, and the triangular limit block is clamped in the stepped groove in magnetic attraction fit through the strong magnet.
[0014] Further, a limit edge is formed on the push block, and a return spring is installed in abutment between the limit edge and the inner side of the shifting groove.
[0015] Further, the bottom side of the upper die is formed with a pushing groove, the upper end of the pushing groove is communicated with the first sliding groove, and the vertical rod is installed in the pushing groove in sliding fit.
[0016] Compared with the prior art, the hole turning device has the advantages that:
[0017] 1. The metal plate to be punched is placed between the upper die and the lower die, the corresponding position of the metal plate is punched into an automobile metal part after the upper die and the lower die are closed, the hole position at the vertical edge of the automobile metal part is aligned with the side hole of the cavity, the hole position in the vertical position is turned by driving the side hole turning shaft to be inserted into the side hole, the hole turning operation perpendicular to the closing direction is realized after the closing, and the production efficiency is improved.
[0018] 2. When the upper die and the lower die are mutually closed to stamp, the outer end of the limiting column is flush with the sidewall of the core, thereby realizing stable stamping and ensuring the quality of the stamped automobile metal part product;
[0019] 3. After stamping, the side hole is inserted into the hole flanging shaft to flange, at this time, the side flanging shaft will push the push block through the vertical rod to move the push block inward, thereby moving the limiting column into the hole flanging groove, at this time, the side flanging shaft will be inserted into the hole flanging groove, thereby realizing stable hole flanging action of the automobile metal part product hole position.
[0020] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0022] Figure 1 is a structural schematic diagram of the present application;
[0023] Figure 2 is Figure 1 is a structural schematic diagram of another view;
[0024] Figure 3 is a structural schematic diagram of the upper die;
[0025] Figure 4 is Figure 3 is an enlarged structural schematic diagram of A of the present application;
[0026] Figure 5 is a structural schematic diagram of the lower die;
[0027] Figure 6 is Figure 5 is an enlarged structural schematic diagram of B of the present application;
[0028] Figure 7 is a structural schematic diagram of the core;
[0029] Figure 8 is Figure 7 is a structural schematic diagram of another view;
[0030] Figure 9 is a structural schematic diagram of the push block.
[0031] The diagram shows: 1. Upper mold; 2. Lower mold; 3. Cavity; 4. Core; 5. Flipping mechanism; 51. Side flipping shaft; 52. Vertical rod; 53. Drive unit; 531. Motor; 532. Reducer; 533. Lead screw; 534. Slider; 6. Side hole; 7. First slide groove; 8. Flipping circular groove; 9. Limiting post; 10. Second slide groove; 11. Push block; 12. Connecting rod; 13. Square groove; 14. Actuating groove; 15. Dovetail groove; 16. Dovetail block; 17. Triangular limiting block; 18. Stepped groove; 19. Strong magnet; 20. Limiting edge; 21. Return spring; 22. Pushing groove. Detailed Implementation
[0032] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0033] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0034] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] like Figures 1-9The utility model discloses a kind of automobile metal piece flanging machining mould, including upper die 1 and lower die 2, the bottom side of upper die 1 is embeddedly installed with cavity 3, the top side of lower die 2 is fixedly installed with core 4, core 4 clearance fit is pressed into cavity 3 setting;
[0038] Flanging mechanism 5 is installed in the upper die 1, and the flanging mechanism 5 includes a side flanging shaft 51, a vertical rod 52 and a drive unit 53, the side of the cavity 3 is formed with a side hole 6, the inner end of the side flanging shaft 51 is clearance fit inserted into the side hole 6, a first sliding groove 7 is formed in the upper die 1, the drive unit 53 is fixedly installed in the upper die 1, the drive unit 53 drives the side flanging shaft 51 to move left and right in the first sliding groove 7, and the vertical rod 52 is fixedly installed at the bottom side of the side flanging shaft 51.
[0039] The side of the core 4 is formed with a flanging circular groove 8, when the upper die 1 and the lower die 2 are mutually moulded, the flanging circular groove 8 is arranged inside the side hole 6.
[0040] A limiting column 9 is slidingly and fitly installed in the flanging circular groove 8, the bottom side of the core 4 is formed with a second sliding groove 10, the upper end of the second sliding groove 10 leads into the flanging circular groove 8, a push block 11 is slidingly and fitly installed in the second sliding groove 10, and a connecting rod 12 is integrally formed between the push block 11 and the limiting column 9.
[0041] When the drive unit 53 drives the side flanging shaft 51 to insert into the side hole 6, the vertical rod 52 drives the push block 11 to move.
[0042] The principle is: first, the sheet metal to be punched is placed between the upper die 1 and the lower die 2, after the upper die 1 and the lower die 2 are mutually moulded, the corresponding position of the sheet metal will be punched into an automobile metal part, at this time, the hole position at the vertical edge of the automobile metal part will be aligned with the side hole 6 of the cavity 3, at this time, the hole position at the vertical position is flanged by driving the side flanging shaft 51 to insert into the side hole 6, when the upper die 1 and the lower die 2 are mutually moulded and punched, the outer end of the limiting column 9 is flush with the side wall of the core 4, thereby realizing stable punching and ensuring the quality of the punched automobile metal part product, after punching is completed, the flanging shaft is inserted into the side hole 6 for flanging, at this time, the side flanging shaft 51 will move the push block 11 by means of the vertical rod 52, so that the push block 11 moves inward, thereby driving the limiting column 9 to move into the flanging circular groove 8, at this time, the side flanging shaft 51 will be inserted into the flanging circular groove 8, thereby realizing stable flanging action at the hole position of the automobile metal part product.
[0043] Further, the driving unit 53 comprises a motor 531, a speed reducer 532, a screw rod 533 and a sliding block 534, the motor 531 is fixedly installed outside the upper die 1 in combination with the speed reducer 532, a square groove 13 is formed in the first sliding groove 7, the screw rod 533 is rotatably installed in the square groove 13, the sliding block 534 is formed with a threaded hole and is screwedly installed on the screw rod 533, the motor 531 drives the screw rod 533 to rotate through the speed reducer 532, and the side turning hole shaft 51 is integrally formed on the sliding block 534; the motor 531 drives the screw rod 533 to rotate through the speed reducer 532, the screw rod 533 drives the sliding block 534 to slide through the cooperation of the threaded hole when rotating, a labor-saving transmission mechanism can be formed, the sliding block 534 can stably slide, the sliding block 534 can be inserted into the side hole 6 through the side turning hole shaft 51 to stably turn a hole in a metal product, one-step turning of a hole in a side wall of a metal product of a vehicle is realized, and the turning is convenient, fast and high in production efficiency.
[0044] Further, the upper side of the lower die 2 is formed with a pushing groove 14, the inner end of the pushing groove 14 leads into the second sliding groove 10, and the push block 11 is clearance-fittingly installed in the second sliding groove 10 and the pushing groove 14; the vertical rod 52 can drive the push block 11 to move through the pushing groove 14, and stable turning of a hole in a metal product of a vehicle is realized.
[0045] Further, the outer end of the push block 11 is formed with a dovetail groove 15, a dovetail block 16 is slidingly installed in the dovetail groove 15, the outer side of the dovetail block 16 is formed with a triangular limiting block 17, a stepped groove 18 is formed in the pushing groove 14, the triangular limiting block 17 is clamped in the stepped groove 18 when sliding, and the vertical rod 52 abuts against the triangular limiting block 17 when moving inward; when the vertical rod 52 pushes the triangular limiting block 17, the triangular limiting block 17 slides at the outer end of the push block 11 by means of the dovetail block 16 and the dovetail groove 15, so that the triangular limiting block 17 is separated from the stepped groove 18, and at this time, the push block 11 is pushed inward; when the triangular limiting block 17 clamps the stepped groove 18, the end of the limiting column 9 is flush with the side wall of the core 4, and stable stamping of sheet metal is realized.
[0046] Further, a strong magnet 19 is embeddedly installed in the stepped groove 18, the triangular limiting block 17 is made of a magnetically conductive metal, and the triangular limiting block 17 is magnetically and attractively clamped in the stepped groove 18 by means of the strong magnet 19; when the triangular limiting block 17 is reset to a proper position, the triangular limiting block 17 is clamped in the stepped groove 18 by magnetic attraction to limit, and the end of the limiting column 9 is flush with the side wall of the core 4.
[0047] Further, the push block 11 is formed with a limiting edge 20, the limiting edge 20 and the inner side of the pushing groove 14 are abutted with a reset spring 21; when the vertical rod 52 is withdrawn, the push block 11 can be reset by the reset spring 21, and then the triangular limiting block 17 is clamped in the stepped groove 18, facilitating the stamping operation.
[0048] Further, the bottom side of the upper die 1 is formed with a pushing groove 22, the upper end of the pushing groove 22 is communicated in the first sliding groove 7, and the vertical rod 52 is slidingly fitted in the pushing groove 22; the pushing groove 22 can ensure the stable movement of the vertical rod 52, so that the side turning hole shaft 51 can stably drive the push block 11 to move when the push block 11 is stamped and turned, the limiting column 9 is moved into the turning hole round groove 8 under the action of the push block 11, the edge of the hole position is always extruded in the turning process, and stable turning action can be realized.
[0049] The embodiment is not limited in shape, material, structure and the like of the utility model, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model are all within the protection scope of the utility model technical scheme.
Claims
1. A die for drilling holes in automotive metal parts, comprising an upper die and a lower die, wherein a cavity is inlaid on the bottom side of the upper die and a core is fixedly installed on the top side of the lower die, and the core is press-fitted into the cavity with a clearance fit. Its features are: The upper mold is equipped with a flipping mechanism, which includes a side flipping shaft, a vertical rod and a drive unit. The side of the cavity is formed with a side hole. The inner end of the side flipping shaft is inserted into the side hole with a clearance fit. The upper mold is formed with a first sliding groove. The drive unit is fixedly installed in the upper mold. The drive unit drives the side flipping shaft to move left and right in the first sliding groove. The vertical rod is fixedly installed on the bottom side of the side flipping shaft. The side of the core is formed with a convex circular groove. When the upper mold and the lower mold are closed together, the convex circular groove is located inside the side hole. A limiting post is slidably installed in the perforated circular groove. A second sliding groove is formed on the bottom side of the core. The upper end of the second sliding groove is connected to the perforated circular groove. A push block is slidably installed in the second sliding groove. A connecting rod is integrally formed between the push block and the limiting post. When the drive unit drives the side-flipping shaft to insert into the side hole, the vertical rod drives the push block to move.
2. The automotive metal part flanging die according to claim 1, characterized in that: The drive unit includes a motor, a reducer, a lead screw, and a slider. The motor and reducer are fixedly installed on the outside of the upper mold. A square groove is formed in the first slide groove. The lead screw is rotatably installed in the square groove. A threaded hole is formed on the slider and is screw-fitted onto the lead screw. The motor drives the lead screw to rotate through the reducer. The side-flipping hole shaft is integrally formed on the slider.
3. The automotive metal part flanging die according to claim 1, characterized in that: The upper side of the lower mold is formed with a push groove, the inner end of which is connected to a second sliding groove, and the push block is fitted with the second sliding groove and the push groove with clearance.
4. The automotive metal part flanging die according to claim 3, characterized in that: The outer end of the push block is formed with a dovetail groove, and a dovetail block is slidably installed in the dovetail groove. A triangular limiting block is formed on the outer side of the dovetail block, and a stepped groove is formed in the toggle groove. When the triangular limiting block slides, it gets stuck in the stepped groove, and when the vertical rod moves inward, it abuts against the triangular limiting block.
5. The automotive metal part flanging die according to claim 4, characterized in that: A strong magnet is embedded in the stepped groove, and the triangular limiting block is made of magnetically conductive metal. The triangular limiting block is magnetically attracted and locked into the stepped groove by the strong magnet.
6. A die for drilling holes in automotive metal parts according to any one of claims 4 or 5, characterized in that: The push block has a limiting edge formed on it, and a return spring is installed on the inner side of the limiting edge and the actuating groove.
7. The automotive metal part flanging die according to claim 1, characterized in that: The bottom side of the upper mold is formed with a sliding groove, the upper end of which is connected to the first sliding groove, and the vertical rod is slidably installed in the sliding groove.
Citation Information
Patent Citations
Sheet metal hole flanging tool
CN111672953B