[family-assembly] swivel_clamp_connector_joint

[sunzhenchuan007]

Family: swivel_clamp_connector_joint

Anchor: JW Winco GN 490 aluminum product page, official PDF, and official drawing SVG.

Scope: aluminum GN 490 equal-diameter joints, Type A socket screw or Type B adjustable lever. Exclude stainless NI, mixed diameters, rods/tubes, and undocumented angular capability. Unlike fixed display/speaker mounts, GN 490 has four jaws and two clamp pairs sharing a central axis.

Reference images

Official engineering drawing	Official Type A product photo

Official Type B product photo

Dimension table

Official metric rows; d3 is the nominal thread designation. Min/max are summaries only.

d1=d2	d3	d4	l1	l2	l3	l4	l5	m
8 (min)	M6	28	33	35	45	14	5	13
10	M8	32	45	45	63	20	5	15
12	M8	36	47	45	63	21	5	17
14	M8	46	57	55	78	25.5	6	20
15	M10	46	57	55	78	25.5	6	21
16	M10	46	57	55	78	25.5	6	22
18	M10	56	63	55	78	28.5	6	24
20 (max)	M10	56	65	55	78	28.5	8	28

Across the table: d1=d2 8–20, d3 M6–M10, d4 28–56, l1 33–65, l2 35–55, l3 45–78, l4 14–28.5, l5 5–8, m 13–28 mm.

Parameters to verify at claim

• catalog_row / clamp_d: one of [8, 10, 12, 14, 15, 16, 18, 20]; it fixes d1=d2, d3, d4, l1–l5, and m from the same row. Do not sample, interpolate, or cross-mix dependent fields.
• actuator_type: A (DIN 912 socket screw) or B (adjustable lever). MT matte/tumbled and SW black textured finish are metadata, not geometry. Published aluminum order codes allow all 8 rows × 2 types × 2 finishes; mixed d1/d2 combinations are excluded.
• Difficulty: easy = 14/15/16, Type A; medium = 10/12/14/15/16/18, A/B; hard = all eight rows including 8 and 20, A/B.
• Visible partition: six solids—four jaw/body segments, one connected simplified actuator, and one simplified spring. Rods/tubes are context only.
• At claim, verify row/type, drawing labels, grooves, actuator silhouette, captions, preview, and six-solid topology agree.

Engineering constraints

• Both jaw pairs form visible V-grooves around nominal clamp_d. JW Winco says the groove bridges a greater diameter tolerance but publishes no numeric tolerance; do not invent one.
• The central passage and V-grooves must leave positive, non-degenerate jaw material. Four jaws, actuator, and spring must neither disappear nor unintentionally fuse.
• Type A uses the socket-screw form; Type B uses the adjustable-lever form. In the drawing/reference pose, the Type B envelope guided by l2/l3 must clear all four jaws.
• No swivel-angle range is published. Do not expose or claim a sourced swivel_angle; any fixed reference-pose angle required by construction is "proportion", not catalog capability.
• Treat casting draft, fillets, chamfers, residual wall rules, V-tip radius/blends, spring wire/coil/end geometry, Type B intermediate lever profile/end radius/hub transitions, Type A secondary screw/nut dimensions, threads, knurling, insert, and distance-bushing details as "proportion" or omit them.
• A stable benchmark may collapse screw, nut, insert, and bushing into one actuator solid and simplify the spring, but must disclose this departure from the physical BOM. Finish/material metadata and catalog dimensions do not validate clamp force, torque, load capacity, motion, or service performance.

[github-actions]

Thanks for the proposal! Whoever claims this verifies it first — the
5-minute evidence check in CONTRIBUTING.md ("Claiming an issue = you verify it"):
standard link real · dimensioned drawing · table with min/max rows · two numbers spot-checked.

Gaps? Fill them yourself (credited) or label needs-evidence with one comment naming what's missing.

新人中文指南: GETTING_STARTED.zh.md · Questions → Discord

[JiusongZhou7]

55

[TimPetrillo]

40