Tubular part forming die

Abstract

The utility model relates to the technical field of forming dies, in particular to a tubular part forming die which comprises an upper die plate and a lower die plate, a male die is arranged on the upper die plate, a lower die holder is arranged on the lower die plate, a female die matched with the male die is arranged above the lower die holder, and a supporting block extending into a cavity of the female die is arranged on the lower die holder. The supporting block is used for positioning a to-be-machined part placed in a cavity of the female die, a discharging block is arranged above the female die, and a through hole allowing the male die to freely penetrate through is formed in the discharging block. According to the tubular part forming die, one-time compression molding is adopted, the machining procedure is simplified, the die debugging difficulty is lowered, the concentricity of the part and the die is guaranteed, the product consistency is improved, the forming efficiency is greatly improved, meanwhile, feeding positioning and taking after forming of the part are facilitated, and stable and efficient production of the part is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, in particular to a forming mold for tubular parts. Background Art

[0002] For parts to be formed Figure 1 in a certain shape, according to the previous idea, a punching machine and a press are generally used in cooperation with manual labor. Specifically, a circular blank is successively processed through multiple processes such as first drawing, second drawing, punching and trimming, flanging and punching, and shaping. Since multiple drawing processes are required for forming, the parts are prone to deformation during the drawing process, resulting in unstable positioning, poor consistency of finished products, and the need for continuous adjustment in the later stage, which affects the processing progress of products, the production rhythm is too long, and the operation is inconvenient, so there is room for improvement. Summary of the Utility Model

[0003] Based on the above problems, the purpose of the utility model is to provide a forming mold for tubular parts, which realizes one-time die pressing forming of tubular parts, so as to produce stably and efficiently.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A forming mold for tubular parts, which includes an upper template and a lower template. A punch is provided on the upper template, a lower die base is provided on the lower template, a die cavity that cooperates with the punch is provided above the lower die base, and a support block that extends into the die cavity of the die cavity is provided on the lower die base. The support block is used to position the parts to be processed placed in the die cavity of the die cavity. A stripping block is provided above the die cavity, and a through hole allowing the punch to freely pass through is provided on the stripping block.

[0006] Optionally, a stop step for limiting the downward stroke of the support block is provided on the lower die base, and a buffer spring is provided between the lower surface of the support block and the lower template or the lower die base. In the open die state, the support block is jacked up by the buffer spring, which is used to help position the parts during feeding and discharge the parts during blanking; in the closed die state, the support block is pressed by the punch until it abuts against the stop step.

[0007] Optionally, a limit component for limiting the downward stroke of the punch is provided between the upper template and the lower template. The limit component includes a first limit post located on the upper surface of the lower template and a second limit post located on the lower surface of the upper template. The second limit post is vertically aligned with the first limit post and abuts against each other in the closed die state.

[0008] Optionally, a guiding component for guiding the punch to move downward is provided between the upper template and the lower template. The guiding component includes a guide post located on the lower surface of the upper template and a guide sleeve located on the upper surface of the lower template. The guide post and the guide sleeve are in sliding fit.

[0009] Optionally, a die shank connected to the press slider is provided on the upper template.

[0010] Optionally, a supporting plate is arranged below the lower template, and a spacer is arranged between the supporting plate and the lower template.

[0011] In summary, compared with the prior art, the tubular part forming die adopts one-time die pressing to simplify the processing procedure, reduce the difficulty of die debugging, ensure the concentricity of the part and the die, improve the product consistency, greatly improve the forming efficiency, and at the same time facilitate the feeding positioning and post-forming material taking of the part, realizing the stable and efficient production of the part. Description of the Drawings

[0012] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the background art and the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present invention and these drawings.

[0013] Figure 1 It is a schematic diagram of the shape of the tubular part provided by the embodiment of the present invention;

[0014] Figure 2 It is a schematic structural diagram of the tubular part forming die provided by the embodiment of the present invention;

[0015] Figure 3 It is a cross-sectional schematic diagram of the tubular part forming die provided by the embodiment of the present invention.

[0016] In the figure:

[0017] 1. Upper template; 2. Lower template; 3. Punch; 4. Lower die base; 5. Die cavity; 6. Support block; 7. Stripping block; 8. Stop step; 9. Buffer spring; 10. Limit assembly; 10a. First limit post; 10b. Second limit post; 11. Guide assembly; 11a. Guide post; 11b. Guide sleeve; 12. Die handle; 13. Support plate; 14. Spacer. Detailed Embodiments

[0018] To make the technical problems solved by the present invention, the technical solutions adopted, and the achieved technical effects clearer, the following will further describe in detail the technical solutions of the embodiments of the present invention with reference to the drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0019] Please refer to Figure 2 and Figure 3As shown, the preferred embodiment provides a tubular part forming mold, including an upper mold plate 1 and a lower mold plate 2, wherein a punch 3 is arranged on the upper mold plate 1, a lower mold base 4 is arranged on the lower mold base 2, a die 5 cooperating with the punch 3 is arranged above the lower mold base 4, a support block 6 extending into the cavity of the die 5 is arranged on the lower mold base 4, the support block 6 is used for positioning the part to be processed placed in the cavity of the die 5, a discharge block 7 is arranged above the die 5, a through hole allowing the punch 3 to pass freely is opened on the discharge block 7, the through hole allows the punch 3 to pass through, but can block the part when the punch 3 is reset and moves upward, thereby facilitating discharge.

[0020] Therefore, the tubular parts forming mold adopts one-time compression molding, which simplifies the processing procedures, reduces the difficulty of mold debugging, ensures the concentricity of the parts and the mold, improves the consistency of the product, and greatly improves the molding efficiency. At the same time, the support block 6 facilitates the loading and positioning of the parts, and the unloading block 7 facilitates the removal of the parts after molding, thereby realizing stable and efficient production of tubular parts.

[0021] As an optional solution, a stop step 8 is provided on the lower die base 4 to limit the downward stroke of the support block 6, and a buffer spring 9 is provided between the lower surface of the support block 6 and the lower mold plate 2 or the lower die base 4. In the open mold state, the support block 6 is lifted by the buffer spring 9 to help position the parts during loading and unload the parts during unloading; in the closed mold state, the support block 6 is pressed by the punch 3 until it abuts against the stop step 8.

[0022] Therefore, the support block 6 floats in the cavity of the die 5 through the buffer spring 9, which can reduce contact damage and facilitate the rapid positioning of the parts to be processed in the mold; secondly, in the mold closing state, the buffer spring 9 is compressed and does not affect the accurate molding; in addition, in the mold opening state, the buffer spring 9 is reset, and the support block 6 ejects the molded parts to facilitate unloading.

[0023] As an optional solution, a limit assembly 10 for limiting the downward stroke of the punch 3 is arranged between the upper mold 1 and the lower mold 2. The limit assembly 10 includes a first limit column 10a located on the upper surface of the lower mold 2 and a second limit column 10b located on the lower surface of the upper mold 1. The second limit column 10b is vertically aligned with the first limit column 10a and abuts against each other in the mold closing state to ensure that the molding is in place and avoid excessive molding.

[0024] As an optional solution, a guide assembly 11 for guiding the punch 3 downward is arranged between the upper mold plate 1 and the lower mold plate 2. The guide assembly 11 includes a guide column 11a located on the lower surface of the upper mold plate 1 and a guide sleeve 11b located on the upper surface of the lower mold plate 2. The guide column 11a and the guide sleeve 11b are slidably matched to improve the mold closing accuracy and ensure the molding quality.

[0025] Further, the two sets of guiding components 11 and the two sets of limiting components 10 are diagonally distributed between the upper template 1 and the lower template 2, so as to be distributed at the four corners of the mold, making full use of the mold space.

[0026] As an alternative, a mold shank 12 connected to the press slider is provided on the upper template 1 to transmit the pressure of the press to the upper template 1 and the punch 3.

[0027] As an alternative, a platen 13 is provided below the lower template 2, and a spacer 14 is provided between the platen 13 and the lower template 2.

[0028] It should be noted that, among the above various alternative embodiments, they can be combined in any combination manner, and the combined embodiments all fall within the protection scope of the present utility model.

[0029] Specific operation process:

[0030] ① In the initial state, the support block 6 is pushed up by the buffer spring 9, the guide post 11a and the guide sleeve 11b are matched to form a guide, the punch 3 and the die 5 are not in contact, and the part to be processed is placed in the cavity of the die 5 and on the support block 6;

[0031] ② The upper template 1 drives the punch 3 to move downward. The punch 3 first contacts the part, drives the support block 6 to move downward, the buffer spring 9 is compressed until the support block 6 abuts against the stop step 8, the punch 3 is relatively pressed into the part, and the part gradually contacts the die 5, and the forming starts;

[0032] ③ When the movement of the upper template 1 ends, the first limiting post 10a and the second limiting post 10b abut, the mold is dead-ended, and the part forming is completed;

[0033] ④ The upper template 1 resets and moves upward, the finished part is pushed out of the die 5 by the support block 6 and is pushed away from the punch 3 by the stripper block 7, and the finished part is taken out.

[0034] In summary, the above tubular part forming mold has the following advantages:

[0035] (1) One-time molding by die pressing simplifies the process, reduces the operation difficulty, and improves the processing efficiency;

[0036] (2) The part is reliably positioned in the die cavity, ensuring the concentricity between the part and the mold, good stability of the finished product size, and high forming quality;

[0037] (3) The limiting component and the guiding component ensure the reliable operation of the mold, good consistency of the finished product, and high repeat accuracy;

[0038] (4) Demolding is convenient, facilitating the product to fall off from the punch and the die;

[0039] (5) It has a simple structure, is convenient for operation, debugging, maintenance, and is conducive to the realization of standardization and automation.

[0040] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A tubular parts forming die, characterized in that: The invention comprises an upper template (1) and a lower template (2), wherein a punch (3) is arranged on the upper template (1), a lower template (2) is arranged on a lower die seat (4), a die (5) cooperating with the punch (3) is arranged above the lower die seat (4), a support block (6) extending into the cavity of the die (5) is arranged on the lower die seat (4), the support block (6) is used to position the part to be processed placed in the cavity of the die (5), and a discharge block (7) is arranged above the die (5), and a through hole is opened on the discharge block (7) to allow the punch (3) to pass freely.

2. The tubular component forming die according to claim 1, characterized in that: The lower die base (4) is provided with a stop step (8) for limiting the downward stroke of the support block (6), and a buffer spring (9) is provided between the lower surface of the support block (6) and the lower die plate (2) or the lower die base (4). In the mold opening state, the support block (6) is lifted up by the buffer spring (9) to help position the parts when loading and unload the parts when unloading; In the mold closing state, the support block (6) is pressed by the punch (3) until it abuts against the stop step (8).

3. The tubular component forming die according to claim 1, characterized in that: A limit assembly (10) for limiting the downward stroke of the punch (3) is arranged between the upper mold plate (1) and the lower mold plate (2); the limit assembly (10) comprises a first limit column (10a) located on the upper surface of the lower mold plate (2) and a second limit column (10b) located on the lower surface of the upper mold plate (1); the second limit column (10b) is vertically aligned with the first limit column (10a) and abuts against each other in a mold closing state.

4. The tubular component forming die according to claim 1, characterized in that: A guide assembly (11) for guiding the punch (3) downward is provided between the upper mold plate (1) and the lower mold plate (2); the guide assembly (11) comprises a guide column (11a) located on the lower surface of the upper mold plate (1) and a guide sleeve (11b) located on the upper surface of the lower mold plate (2); the guide column (11a) and the guide sleeve (11b) are slidably matched.

5. The tubular component forming die according to claim 1, characterized in that: The upper mold plate (1) is provided with a mold handle (12) connected to a press slide.

6. The tubular component forming die according to claim 1, characterized in that: A support plate (13) is provided below the lower template (2), and a pad (14) is provided between the support plate (13) and the lower template (2).

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