A fine and narrow needle bending and skewing adjusting structure

By adjusting the bending and twisting structure of the narrow needle, the problems of multiple equipment, high manpower and material costs, and twisting in the production of narrow needles are solved, achieving efficient and stable multi-specification production and a high pass rate.

CN224537594UActive Publication Date: 2026-07-21XUZHOU YUNTAI AUTOMOBILE ELECTRICAL APPLIANCE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU YUNTAI AUTOMOBILE ELECTRICAL APPLIANCE
Filing Date
2025-07-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing technology, the production of narrow pin structures has problems such as requiring a lot of equipment, consuming a lot of manpower and resources, and being prone to pin twisting, resulting in non-compliant dimensions.

Method used

A narrow needle bending and skewing adjustment structure is adopted, including a punch, a lower die bending insert and a narrow needle product. By forming an accommodating space between the punch and the lower die boss, and setting an anti-cavity groove and a guide C-angle, it is ensured that the narrow needle does not skew during the bending process, reducing manual intervention.

Benefits of technology

It enables efficient production of fine and narrow needles of various specifications, avoids twisting, improves product qualification rate and production stability, and saves costs and time.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224537594U_ABST
    Figure CN224537594U_ABST
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Abstract

The utility model discloses a kind of thin narrow needle bending twist skew adjusting structures, including punch, lower mould bending insert and thin narrow needle product, the punch one side bottom is equipped with multiple punch bosses, the lower mould bending insert one side top is equipped with multiple lower mould bosses, the lower mould boss and punch boss form the accommodation space for placing thin narrow needle product between, the lower mould bending insert one side middle part is equipped with the avoidance slot that avoids and thin narrow needle product contact;It can reduce production equipment and intermediate process does not need manual assistance, while meeting the production of multiple types of thin narrow needle simultaneously, improve work efficiency, can avoid the appearance thin narrow needle twist skew, substantially improve product pass rate and mass production process stability, improve product pass rate, improve mass production process stability, save cost, save time.
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Description

Technical Field

[0001] This utility model relates to the field of electronic technology, specifically to a narrow needle bending and twisting adjustment structure. Background Technology

[0002] In the current electronics industry, with the advancement of mass production and lightweighting, the demand for narrow pin inserts is increasing. However, these inserts are often produced using a combination of stamping and bending machines. This method involves numerous pieces of equipment and requires manual placement, consuming significant manpower and resources. Alternatively, they can be formed in stamping dies, but this often results in pin misalignment, leading to dimensional defects.

[0003] Therefore, in order to achieve mass production of various specifications of narrow needles without bending or twisting, a new structure is urgently needed. To this end, a bending and twisting adjustment structure for narrow needles is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a narrow needle bending and twisting adjustment structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a narrow needle bending and skewing adjustment structure, comprising a punch, a lower die bending insert, and a narrow needle product. Multiple punch bosses are installed on the bottom side of one side of the punch, and multiple lower die bosses are installed on the top side of one side of the lower die bending insert. A receiving space for placing the narrow needle product is formed between the lower die bosses and the punch bosses. An anti-cavity groove is provided in the middle of one side of the lower die bending insert to prevent contact with the narrow needle product.

[0006] Preferably, the lower die boss and the punch boss cover the bending radius of the narrow needle product.

[0007] Preferably, the gap between the lower die boss and the punch boss and the narrow needle product is 0.01mm on one side.

[0008] Preferably, the side of the lower die boss and the punch boss that contacts the narrow needle product is provided with a C-angle for guiding the narrow needle product during bending.

[0009] Preferably, the thickness of the lower die boss and the punch boss is less than half the thickness of the material of the narrow needle product.

[0010] Preferably, the outer side of the punch is provided with a stripping plate, a stop plate and an upper clamping plate from bottom to top, an upper pad is installed above the upper clamping plate and an upper die base is installed above the upper pad.

[0011] Preferably, a lower template is installed on the outer side of the lower die bending insert, a lower pad is installed below the lower template, and a lower die base is installed below the lower pad.

[0012] Compared with the prior art, the beneficial effects of this utility model are: it can reduce the production equipment and eliminate the need for manual assistance in the intermediate process, while simultaneously meeting the production of multiple types of narrow needles, improving work efficiency, avoiding the twisting of narrow needles, significantly improving the product qualification rate and the stability of the mass production process, saving costs and time. Attached Figure Description

[0013] Figure 1 This is a perspective view of the bending and torsion structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the bending and torsion adjustment structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the punch boss of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the lower mold boss of this utility model;

[0017] Figure 5 This is a schematic diagram of the punching die structure of this utility model.

[0018] In the diagram: 1. Upper die holder; 2. Upper backing plate; 3. Upper clamping plate; 4. Stop plate; 5. Stripper plate; 6. Lower die plate; 7. Lower backing plate; 8. Lower die holder; 9. Punch; 10. Narrow needle product; 11. Lower die bending insert; 12. Punch boss; 13. Lower die boss; 14. Clearance groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a narrow needle bending and twisting adjustment structure, including a punch 9, a lower die bending insert 11, and a narrow needle product 10. A plurality of punch bosses 12 are installed on the bottom side of one side of the punch 9, and a plurality of lower die bosses 13 are installed on the top side of one side of the lower die bending insert 11. A receiving space for placing the narrow needle product 10 is formed between the lower die bosses 13 and the punch bosses 12. A clearance groove 14 is provided in the middle of one side of the lower die bending insert 11 to avoid contact with the narrow needle product 10.

[0021] like Figure 2As shown: the lower die boss 13 and the punch boss 12 cover the bending radius of the narrow needle product 10; with the above settings, the bending radius refers to the radius of the arc formed by the bending edge during the bending process. The lower die boss 13 and the punch boss 12 covering the bending radius can make the bending process of the narrow needle product 10 more convenient.

[0022] like Figure 3 and Figure 4 As shown: the gap between the lower die boss 13, the punch boss 12, and the narrow needle product 10 is 0.01mm on one side; with the above settings, it is easier to place and remove the narrow needle product 10, and at the same time, it can effectively avoid the occurrence of positional deviation.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown: The side of the lower die boss 13 and the punch boss 12 that contacts the narrow needle product 10 is provided with a C-angle for guiding the narrow needle product 10 when bending; with the above setting, the narrow needle product 10 can be guided during bending.

[0024] like Figure 2 As shown: the thickness of the lower die boss 13 and the punch boss 12 is less than half the material thickness of the narrow needle product 10; through the above settings, the thickness can be adjusted accordingly based on the product thickness.

[0025] like Figure 5 As shown: The outer side of the punch 9 is provided with a stripping plate 5, a stop plate 4 and an upper clamping plate 3 from bottom to top. An upper pad plate 2 is installed above the upper clamping plate 3. An upper die base 1 is installed above the upper pad plate 2. A lower template 6 is installed on the outer side of the lower die bending insert 11. A lower pad plate 7 is installed below the lower template 6. A lower die base 8 is installed below the lower pad plate 7. Through the above settings, the positions of the punch 9 and the lower die bending insert 11 can be fixed, thereby facilitating the bending of the narrow needle product 10.

[0026] Working principle: First, the punch 9 is assembled into the upper clamping plate 3, the stop plate 4, and the stripper plate 5. The lower die bending insert 11 is assembled into the lower die plate 6. During the forming process of the narrow needle product 10, the punch boss 12 on the punch 9, which is used for forming skew adjustment features, and the lower die boss 13 on the lower die bending insert 11, which is used for lower die bending skew adjustment features, simultaneously adjust and correct the narrow needle to the correct position, ensuring that the narrow needle does not skew, thereby reducing the generation of defective products and improving production efficiency.

[0027] The thickness of the punch boss 12 must not exceed half the thickness of the product material, and can be adjusted accordingly based on the product thickness. The thickness of the lower die boss 13 must not exceed half the thickness of the product material, and can be adjusted accordingly based on the product thickness.

[0028] The lower die boss 13 and the punch boss 12 need to cover their bending R-angle. The gap between the edge of the boss and the narrow needle product 10 is 0.01mm on each side. The side of the boss that contacts the narrow needle product 10 needs to have an additional C-angle for guiding the narrow needle product 10 during bending.

[0029] The clearance position 14 on the side of the lower die bending insert 11 avoids contact with the narrow needle product 10 during bending, thus preventing bending and twisting due to excessive contact surface.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A narrow needle bending and skewing adjustment structure, comprising a punch (9), a lower die bending insert (11), and a narrow needle product (10), characterized in that: Multiple punch bosses (12) are installed on one side bottom of the punch (9), and multiple lower die bosses (13) are installed on one side top of the lower die bending insert (11). A receiving space for placing the narrow needle product (10) is formed between the lower die bosses (13) and the punch bosses (12). A clearance groove (14) is provided in the middle of one side of the lower die bending insert (11) to avoid contact with the narrow needle product (10).

2. The narrow needle bending and twisting adjustment structure according to claim 1, characterized in that: The lower die boss (13) and the punch boss (12) cover the bending radius of the narrow needle product (10).

3. The narrow needle bending and twisting adjustment structure according to claim 1, characterized in that: The gap between the lower die boss (13), the punch boss (12), and the narrow needle product (10) is 0.01 mm on each side.

4. The narrow needle bending and twisting adjustment structure according to claim 1, characterized in that: The lower die boss (13) and the punch boss (12) are provided with a C-angle on the side that contacts the narrow needle product (10) for guiding the narrow needle product (10) when it is bent.

5. The narrow needle bending and twisting adjustment structure according to claim 1, characterized in that: The thickness of the lower die boss (13) and the punch boss (12) is less than half the material thickness of the narrow needle product (10).

6. The narrow needle bending and twisting adjustment structure according to claim 1, characterized in that: The punch (9) is provided with a detachment plate (5), a stop plate (4) and an upper clamping plate (3) from bottom to top on the outside. An upper pad plate (2) is installed above the upper clamping plate (3), and an upper die base (1) is installed above the upper pad plate (2).

7. The narrow needle bending and twisting adjustment structure according to claim 1, characterized in that: A lower template (6) is installed on the outside of the lower die bending insert (11), a lower pad (7) is installed below the lower template (6), and a lower die base (8) is installed below the lower pad (7).