Industry Applications
Application
Four-Axis Rotary Table Tooling Case
Case Details
A CNC rotary table is a machine tool accessory featuring a rotatable worktable used to clamp workpieces and achieve rotary and indexing positioning; it is commonly referred to as a rotary table or the fourth axis. Based on function, rotary tables are classified into general-purpose and precision types. They serve as essential accessories for boring machines, drilling machines, milling machines, and broaching machines, among others, and are employed to machine holes, slots, and inclined surfaces that require indexing. During machining, rotating the worktable enables the production of curved surfaces and arc-shaped slots. General-purpose rotary tables, in turn, are further categorized according to their structure into horizontal rotary tables, vertical–horizontal rotary tables, and universal rotary tables.
The following are real-world machining application cases for the rotary table:
I. Project Proposal for a Stainless Steel Connector
Condition: Machining center equipped with a four-axis: green section machining, drilling, milling, and tapping tooling solution
1. The side plane serves as the angular positioning surface, while the arcuate surface provides clamping;
2. Yellow four-point support, with pressure applied at four points;
3. Four-axis machining: Rotate 90 degrees to machine one face; complete four rotations to finish machining all four products in a single setup.
II. ABS Housing Project Proposal
Condition: Machining center equipped with a four-axis system: green-colored tooling solution
1. Bottom-surface support, spring-pin positioning, angular locating surface, and rotary clamping;
2. Four-axis tooling solution: Machine one face every 90 degrees of rotation, rotate three times, and complete machining of 10 parts in a single setup.
III. Spindle Box Project Proposal
Condition: The machining center is equipped with a four-axis rotary table, enabling three-process machining through four-axis rotation.
1. The green area represents the machining station, where the blank is used for positioning.
2. V-shaped positioning: one fixed support, two auxiliary supports, and one side featuring directional positioning.
3. Double-sided clamping and single-sided clamping methods
4. Explanation: Machining is performed in a sequence of roughing followed by finishing, utilizing four-axis rotation.
1. First machine the D24H7 flat surface and other features on this surface.
2: Rotate the four-axis by 90 degrees to perform rough machining of D50H7 and D40H7, as well as other areas on this surface.
3: Rotate the four-axis machine by another 90 degrees, perform rough machining of hole D47J7, and machine other areas on this surface.
4. During finish machining, first retract the two side push cylinders, then complete one cycle to produce the finished part.
5. Replace the positioning block and clamping block; they can be shared with C403.
IV. VCST Project Proposal
Condition: Four-axis machining: divided into three process steps, with six finished parts produced in the final step.
1: Two-point clamping, with all holes machined on the front face.
2: Rotate the four-axis by 90 degrees to machine the D5 side hole; rotate the four-axis by -180 degrees to machine the D5 side hole.
3. One-out-six tooling design
V. Four-Axis Fixture Solution for the Steering Knuckle
Conditions: The machining center is equipped with a four-axis model 320, with a spindle center height of 210.
1. The end connection plates are designed in an L-shape to enhance structural rigidity, with a central plate thickness of 60 mm.
2. The required turning diameter is greater than 460, and both the four-jaw chuck and the tailstock are raised by 80.
3. Two-step clamping method: First clamp the two middle points,
4. After the four auxiliary supports have simultaneously ejected, the four hydraulic cylinders then re-pressurize to clamp the workpiece securely; at this point, machining can commence.
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