Customized Non-Standard Parts

Product introduction

The double-section hole positioning pin assembly is a high-precision positioning connection component, which belongs to the typical category of special-shaped fasteners. This product adopts a unique two-stage design, and achieves precise alignment and reliable fixation of multiple components through a clever combination of middle connecting parts and end positioning holes. As a professional solution in the field of positioning and assembly, this stainless steel special-shaped fastener is widely used in mechanical equipment, mold tooling and automation systems that require precise alignment and repeated assembly. Our special shape fastener factory specializes in the development and production of such complex structural fasteners.

 

Product design and features

Structural design: double-section structure: the upper section is the guide part, the lower section is the positioning part, and the intermediate transition zone realizes stress dispersion. Radial through-hole design: precision holes penetrate both sides of the pin body, which can be used to assist in fixing or installing indicator parts. Stepped diameter: different sections adopt different diameters to achieve staged positioning functions. End chamfering treatment: multi-level introduction angle design facilitates assembly and alignment.

During the processing of special-shaped fasteners, we have made many innovations for double-section hole positioning pins: precision alignment technology: ensuring the coaxiality of the two-section axis is ≤0.005mm, cross-section hole alignment: the through hole remains continuous at the transition between the two sections, surface hardening treatment: the positioning part can be partially hardened to HRC45-50 to improve wear resistance, error-proof design: asymmetric structure or markings prevent incorrect installation.

Performance Advantages As a representative product of customized special-shaped fasteners, its advantages include: achieving precise positioning of multiple components at one time, reducing assembly time, improving production efficiency, repeatable positioning accuracy of ±0.002mm, and able to withstand radial and axial composite loads.

 

Materials and application areas

We provide double-section hole positioning pins in a variety of materials, among which stainless steel special-shaped fasteners are the most popular.

Application fields: This special shape fastener is mainly used in the following scenarios:

Precision mold manufacturing: core positioning and guidance of stamping dies and injection molds, automated assembly lines: rapid tool change positioning of robot end effectors, aerospace equipment: molding positioning and assembly of aircraft composite materials, automobile manufacturing tooling: positioning systems for body-in-white welding fixtures, semiconductor equipment: precision alignment of wafer transfer and processing platforms, medical devices: mechanical positioning of surgical navigation equipment and imaging equipment, detection instruments: calibration and positioning of precision instruments such as coordinate measuring machines.

 

Quality control and certification system

Our special shape fastener factory has established a professional quality control system for complex structural parts:

Testing items: dimensional accuracy testing, material performance verification, functional performance testing.

Certification system: ISO 9001: quality management system certification, IATF 16949 automotive industry quality management system (some product lines), AS9100 aerospace quality management system (customized products can be satisfied).

 

Customized services

We provide a full range of customized special shape fastener solutions:

Requirements analysis stage: application working condition analysis, matching component analysis, and assembly process analysis.

Engineering design stage: 3D modeling and finite element analysis (FEA) strength verification, tolerance analysis and fit calculation, error-proofing design and marking scheme.

Customizable parameters: number and length combinations of segments, aperture, number and distribution pattern, diameter tolerance (up to ±0.002mm), surface treatment, special markings.

Production service process: Rapid prototype service: 5-10 working days to provide functional samples, small batch trial production: 50-500 pieces for verification batch, mass production: automated production line, monthly production capacity up to 50,000 pieces, assembly supporting services: providing matching bushings, fixings and installation tools.

 

FAQ

Q: What is the main difference between double-section hole locating pins and standard locating pins?

A: Standard positioning pins have a single function, while our products are special-shaped fasteners with a double-section structure and radial hole design, which can simultaneously achieve multiple functions such as guidance, positioning, fixation, and auxiliary installation.

 

Q: What are the difficulties in processing this product?

A: The main difficulties lie in ensuring multi-feature coaxiality, controlling cross-section hole penetration accuracy, and controlling heat treatment deformation in the processing of special-shaped fasteners. We use five-axis linkage machining centers and special tooling to solve these problems.

 

Q: What is the design cycle and production cycle for customizing this type of special fasteners?

A: The design cycle is usually 5-7 working days (including analysis and simulation), and the production cycle depends on the complexity: 7-15 days for samples and 21-30 days for mass production. Our special shape fastener factory has a rapid response team to handle emergency needs.

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