US4491306A Holding curved workpieces Google

2017-7-27  Large, spherically preshaped, thin workpieces are held and clamped in discrete, well-defined points under utilization of holding and clamping elements in which a portion of a head is universally...

US4491306A Holding curved workpieces Google

holding workpiece convex positioning pin Prior art date 1981-07-07 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Fee Related Application number US06/393,058 Other languages English (en) Inventor

Home Timothy Coleman Furniture

2017-6-23  holding a curved workpiece for shaping. By elevating one end of the part, the clamp provaes hand clearance and access to the sides. Stabilize a plank You can use a hand screw to hod tall boards tight for planing or shaping the top edge. A damp holds the h screw firmly flat the bench.

Router Basics Holding The workpiece trend-usa

One very handy trick is to use a sash cramp gripped in a bench vice for holding a workpiece by its ends, but make up a couple of wooden saddles to support the work and stop it twisting over A standard G-cramp will often suffice if the wood has to be held flat on the bench, but you will need plenty of overhang on the bench top so you can locate it well clear of the routers path.

Workholding Considerations for Five-Axis Machining

The workholding system that attaches onto that knob is designed to be robust but also small, so it fits into the footprint of the workpiece, providing access to all edges of the workpiece. It also includes a modular stacking system that gives users the ability to change the height of the workpiece

Machine for screen printing curved objects TU;

The scraping assembly and the screen-holding assembly can be vertically positioned under the influence of pneumatic cylinders. A workpiece mold holds a curved workpiece such as a bowl and is rotatable under the influence of an axle and another gear wheel/spur rail combination. Three scrapers are attached to the scraping assembly.

Conformable fixture systems with flexure pins for

2020-2-1  Because workpiece holding was achieved at an average of 49 % lower clamping force in this proof of concept, and deformation was smaller for a given clamp force, flexures were therefore shown to offer a sizeable improvement over conventional fixturing solutions for components that are subject to geometric variations, and/or are easily damaged.

Chapter 17: Grinding Methods and Machines Cutting

2020-6-29  The most popular internal grinder is similar in operation to a boring operation in a lathe: The workpiece is held by a workholding device, usually a chuck or collet, and revolved by a motorized headstock. A separate motor head in the same direction as the workpiece revolves the grinding wheel.

Lathe Machine Operations [Complete Guide] with

2021-5-12  Following are the Lathe machine operations done either by holding the workpiece between centres or by a chuck: Turning Operation. Plain or Straight

Vision Assisted Robotic Deburring of Edge Burrs in

2014-1-1  A rotary-type deburring tool having rotational speed of 1000 rpm was mounted to the end-effecter, a machine vice to hold the workpiece, a camera stand with camera, a robot system controller and an image analyzing and processing system as shown in Fig. 1.The steps involved in the deburring process are as given below.

Workholding BIG KAISER

2021-5-14  UNILOCK automation chucks are expanding the role of air pressure beyond that of holding the chuck open during changeovers or assisting the springs in the clamping process. Multi-Axis Systems Our multi-axis workholding solutions locate and stabilize the workpieces without obstructing access to the top and sides of the part.

Workholding Considerations for Five-Axis Machining

2020-8-28  The dovetail has enough holding power that it can hold parts well within their footprint, giving complete access around all five sides of the workpiece. The challenge with this type of fixturing, he says, is that it doesn’t work as well on curved surfaces, and it can’t be used on parts with varying widths.

Workholding Considerations for Five-Axis Machining

The dovetail has enough holding power that it can hold parts well within their footprint, giving complete access around all five sides of the workpiece. The challenge with this type of fixturing is that it doesn’t work as well on curved surfaces, and it can’t be used on parts with varying widths.

Clamps & Clamping Elements

2020-12-28  Finger clamp is specially designed for holding at curved surfaces or inside holes. Read More CAM CLAMP. Most ideal for quick Hold Down Clamping in fixtures. Conventional Strap Clamps in fixtures can be replaced by these quick acting Cam clamps without much effort. MULTIPLE WORKPIECE CLAMPS.

Principles of Location in Jig & Fixture Design Carr Lane

Locating the workpiece is the first basic function of a jig or fixture. Once located, the workpiece must also be held to prevent movement during the operational cycle. The process of holding the position of the workpiece in the jig or fixture is called clamping. The primary devices used for holding a workpiece

Metal Fabrication

2021-2-17  workpiece into a measuring device, or be integrated • Holding and manipulating the workpiece while processing • Material handling between operations • Stacking / de-stacking desired curved shape. After processing, the robots extract the tubes and place them on a

Conformable fixture systems with flexure pins for

2020-2-1  Because workpiece holding was achieved at an average of 49 % lower clamping force in this proof of concept, and deformation was smaller for a given clamp force, flexures were therefore shown to offer a sizeable improvement over conventional fixturing solutions for components that are subject to geometric variations, and/or are easily damaged.

Lean Manufacturing: Principles, Tools and Methods

2015-2-4  The workpiece may be carried from one value-added operation to the next. How-ever, there are times when the workpiece or the fixture holding the workpiece is too heavy and must be transferred me-chanically between workstations. Although very heavy parts may be trans-ported on belt conveyors, manual push or gravity conveyors are ideal for moving

Chapter 17: Grinding Methods and Machines Cutting

2020-6-29  The workpiece rotates 360 degrees on a rotary table underneath the wheelhead. The wheelhead moves across the workpiece to provide the necessary cross feed movements. Jig grinders are equipped with a high-speed vertical spindle for holding and driving the grinding wheel. They utilize the same precision locating system as do jig borers

Jigs and Fixtures: Types, Parts, Definition, Applications

2020-10-27  jigs and fixtures are the devices which help in increasing the rate of identical parts and reducing the human efforts required for producing these parts, It has already been emphasized earlier that a center lathe is a suitable machine tool for producing individual parts of different shapes and sizes, but for producing similar articles in great number its use will not be economical.

Workholding Considerations for Five-Axis Machining

2020-8-28  The dovetail has enough holding power that it can hold parts well within their footprint, giving complete access around all five sides of the workpiece. The challenge with this type of fixturing, he says, is that it doesn’t work as well on curved surfaces, and it can’t be used on parts with varying widths.

Workholding BIG KAISER

2021-5-14  UNILOCK automation chucks are expanding the role of air pressure beyond that of holding the chuck open during changeovers or assisting the springs in the clamping process. Multi-Axis Systems Our multi-axis workholding solutions locate and stabilize the workpieces without obstructing access to the top and sides of the part.

Workholding Considerations for Five-Axis Machining

The dovetail has enough holding power that it can hold parts well within their footprint, giving complete access around all five sides of the workpiece. The challenge with this type of fixturing is that it doesn’t work as well on curved surfaces, and it can’t be used on parts with varying widths.

Clamps & Clamping Elements

2020-12-28  Finger clamp is specially designed for holding at curved surfaces or inside holes. Read More CAM CLAMP. Most ideal for quick Hold Down Clamping in fixtures. Conventional Strap Clamps in fixtures can be replaced by these quick acting Cam clamps without much effort. MULTIPLE WORKPIECE CLAMPS.

Principles of Location in Jig & Fixture Design Carr Lane

Locating the workpiece is the first basic function of a jig or fixture. Once located, the workpiece must also be held to prevent movement during the operational cycle. The process of holding the position of the workpiece in the jig or fixture is called clamping. The primary devices used for holding a workpiece

Metal Fabrication

2021-2-17  workpiece into a measuring device, or be integrated • Holding and manipulating the workpiece while processing • Material handling between operations • Stacking / de-stacking desired curved shape. After processing, the robots extract the tubes and place them on a

Lean Manufacturing: Principles, Tools and Methods

2015-2-4  The workpiece may be carried from one value-added operation to the next. How-ever, there are times when the workpiece or the fixture holding the workpiece is too heavy and must be transferred me-chanically between workstations. Although very heavy parts may be trans-ported on belt conveyors, manual push or gravity conveyors are ideal for moving

What Are the Best Types of Cups for Your Workpiece?

2019-10-24  FH = Theoretical holding force of the suction gripper (N) m = Mass (kg) g = Acceleration due to gravity (9.81 m/s2) a = Acceleration of the system (m/s²) S = Safety factor (minimum value is a safety factor of 1.5) μ = Friction factor (0.1 for oily surfaces, 0.2–0.3 for wet surfaces, 0.5 for wood, metal, glass, and stone, 0.6 for rough

Chapter 4: Turning Tools and Operations Cutting

2010-1-19  Turning is used to generate cylindrical surfaces: generation of surfaces oriented primarily perpendicular to the workpiece axis are called facing. In turning, the direction of the feeding motion is predominantly axial with respect to the machine spindle. In facing a radial feed is dominant. Tapered and contoured surfaces require both modes of tool feed at the same time, often referred to as

Perpendicularity GD&T Basics

Special Note: Perpendicularity in GD&T can mean two very different things depending on which reference feature is called out. The normal form or Surface Perpendicularity is a tolerance that controls Perpendicularity between two 90° surfaces, or features. Surface Perpendicularity is controlled with two parallel planes acting as its tolerance zone.