OCEANSIDE, CA. Masa Tool has expanded their line of Microconic over-grip collets to include a new style called a "T-type." The T-type over-grip collet has a longer gripping surface than the original W-type. We designed it specifically for longer parts such as bone screws with wide pitch threads.
But, in some cases, with longer parts, the land width "B" needs to be longer to support the workpiece properly. Masa's new T-type collet provides the solution for longer workpiecesTypically with over-gripping applications, a shorter land length/clamping pad length/grip length is desired because of limited space available to hold the workpiece behind the enlarged head or flange that it is reaching over. That is what our original W-type collet was optimized for. However, with longer parts, with more surface area for clamping and gripping room, a longer land length is often preferred to provide more stability to support the longer length workpiece.
Microconic T-Type Over-grip Collet features
If you've tried other companies overgrip collets with poor results, Microconic over-grip collets will allow you to do things you might have thought impossible!
0 Comments
Due to the extreme opening capability of our overgrip collets , workpiece ejection must be very reliable to prevent a part from becoming stuck in the slots of the collet. Therefore we have developed the Microguide™ ejection guide sleeve to prevent parts from falling inside the collet instead of ejecting into the part catcher.
The Microconic Workholding system was featured at the Marubeni Citizen-Cincom of New England booth at the Eastec 2017 Machine Tool Show! Marubeni Citizen-Cincom is the exclusive New England distributor for Citizen Cincom Swiss style lathes and Miyano Multi Axis turning centers as well as ne of our premier distributors of the Micorconic Workholding system About the CINCOM L20 Low Frequency Vibration (LFV)State-of-the-art LFV is a widely applicable cutting technology designed to avoid the problem of spiraling chips, entanglement of chips and built-up edges. Benefits include increased cutting tool life, reduced heat generation and reduced power consumption.
The popular Citizen CINCOM L20 series sliding headstock lathes are now available with Low Frequency Vibration (LFV). This widely applicable cutting technology – able to handle a broad range of machining shapes and materials – is ideal for cutting difficult-to-cut materials. The state-of-the-art LFV suppresses various risks associated with these materials, such as entanglement of chips and built-up edges. Depending on the material being cut, a variety of problems can be caused by chips getting entangled with each other, including increased cutting resistance, scarring, changes in the texture of the machined surface, tool nose damage, and built-up edges due to cutting heat. In LFV cutting, “air cutting” time prevents the machining temperature from rising, which both prolongs tool lives and gives relief from various problems caused by chips. This article originally appeared in the April 2017 issue of Today's Medical Developments. It was the cover story entitled: "Micro-Precision Machining" by Elizabeth Modic Microconic’s cartridge is made of exotic high-chromium tool steel, triple tempered and cryogenically treated to provide stable construction. All functional seating surfaces are ground with extreme precision on a one-piece, ultra-rigid body structure. “The cartridge can be used as a calibration gage to verify the machine spindle accuracy,” Co-owner Chip Prescott notes. Microconic collets are finished to exacting standards with a five-step grinding process that removes the effect of heat-treat warpage. Also, the proprietary Microconic form of the closure surfaces is inherently more accurate than traditional collets, providing for a greater full-accuracy working range. Cartridges are available to fit in push-type dead-length collet closers and also draw-type closers: F20M10 (for TF20 collet replacement), F25M10 (for TF25 collet replacement), and 5CM10 (for 5C collet replacement). All of these cartridges use the same Microconic UM10 collets, with more cartridge sizes in development to be released soon. Masa Tool is introducing its Microconic workholding system for use in subspindle Swiss-type machine operations, enabling the operator to switch operations from the main to the subspindle so that usage is balanced. Masa Tool is introducing its Microconic workholding system for use in subspindle Swiss-type machine operations, enabling the operator to switch operations from the main to the subspindle so that usage is balanced. This capability is said to reduce cycle time in ways that are not possible with conventional collets. The Microconic system consists of two primary components: a cartridge that fits in the machine’s standard TF20, TF25 or 5C collet closer, and the collet itself, which fits into the cartridge. Each cartridge model has a solid extended nose and can accept both regular and over-grip collets. The over-grip collets open up to 0.157" (4 mm) larger than the clamping diameter. The Microconic cartridge’s extended nose design directs all of the chucking pressure directly over the workpiece for concentricity and rigidity. Total indicated runout (TIR) for the Microconic system is guaranteed at 0.0002" (5 µm) at the workpiece, absent any runout introduced by the machine structure or other elements of the setup. The system capacity ranges from 0.008" to 0.394" (0.2 to 10 mm) in diameter, with all sizes available from stock.
We got a very unexpected present in the mail this past week! We where very excited to learn that our Microconic workholding system for small diameter part machining was featured in the Rapid Traverse section of the June 2017 issue of Modern Machine Shop!!! We've got pictures of the article below in case you don't currently subscribe to Modern Machine Shop. You can also download a PDF copy of the entire June issue below in the link. It starts on Page 25 of the PDF download. If you have the print edition it's on Page 22, or you can just read thought the screen shots below. We want to really extend a very big THANK YOU to Matt Danforth at Modern Machine Shop who wrote this article. Matt really did an awful lot of work learning about the various features of our system. We know there where many many hours that he spent to develop this story just from the sheer number of follow up questions and conversations. We really have an awful lot of respect for the entire MMS team and the effort they put into getting their story's "just right".
The below article excert originally appeared in Advanced Manufacturing magazine. You can read the entire article at the title link at the bottom of this page. Workholding Advances Medical parts are often delicate, which can create problems when they are picked off with the subspindle for backwork. It is important but difficult to apply just the right amount of pressure to hold the part in the subspindle. And once the optimum gripping force is determined, it is not easy to communicate to other operators how the adjustment was made. Machine tool accessory maker Masa Tool Inc. (Oceanside, CA) has developed a collet system that makes this process easier. The collet is set using a special tool with marked graduations that enable precise adjustments to the gripping force of the collet. “You can document the micrometer-like adjustment for the collet closure in your setup plan,” said Matt Saccomanno, CEO. “It’s done the same way every time, regardless of operator skill and without relying on feel.” One of the more challenging Swiss applications is making dental implants because of their small size. Saccomanno said that Masa recently helped a customer broach a dental implant on the subspindle with the Masa collet system holding only a small land. Considering how much force is applied to the workpiece during a broaching operation, this might have seemed impossible to accomplish. The reason it is possible is that the Masa collet system applies the gripping forces directly over the area where the collet grips the part. The collet system has two main parts, a cartridge that replaces the standard machine collet and a smaller collet made by Masa that is installed into the cartridge. These components are held to a high accuracy and are made by Masa with proprietary grinding methods. Concentricity variation is held to 0.0002″ (0.005 mm). “This particular broaching application used an over-grip collet,” Saccomanno said. “The process change moved an operation from the main-spindle to the subspindle and so allowed some simultaneous machining not possible previously. Before they used our system, the part was made entirely on the main spindle.” An over-grip collet opens up to pass over a shoulder or some other feature on a part in order to grip the part past the shoulder. Masa makes over-grip collets that can open up to 4 mm over the chucking diameter. This is the largest difference in diameter in the industry and still holds 0.0002″ TIR, according to Masa. Read the entire article by clicking the link below
Special Thanks to Mark Hurst from HiTech Industrial for bringing this application solution to their attention.
The Microconic system will be able to do things that are impossible |
Our regular MicroconicTM collets help reduce cycle time by allowing a rm grip on the workpiece without causing damage, and yet holding it much more rigidly than any other collet on the market. You’ll be able to do heavy machining operations in the sub spindle, such as blind hole broaching, that would not have even considered in the past. Now you can switch ops from main to sub! Set ups are quicker and more repeatable with Microconic. You can document the micrometer-adjust collet closure in your set up plan using our Micrograd Face Dial Wrench and it’s going to repeat to the same clamping pressure each and every time, regardless of operator skill and without relying on “feel”. You can calibrate your spindle accuracy with the MicroconicTM cartridge by using it as a precision cylinder gauge. When that is good, EVERY Microconic collet will run within .0002” TIR: There’s no ddling and swapping collet after collet looking for a “good” one. Set ups go smoothly and predictably. | The Microconic collets fit into our cartridge to hold the workpiece with great precision and rigidity. Unlike traditional extended nose collets our unique design and closing action is inherently more accurate and consistent. The clamping force is directly over the workpiece at the end of the collet. The origin of the word “Microconic”, alludes to the precise way in which the collet closing taper is formed to cancel the effects of heat treat warp and grind tolerances. As a result, it provides industry- best concentricity every time. |
Download or View the 2017 Masa Tool Microconic Catalog:
Blog: 2/17/2017
by MATT DANFORD
Associate Editor, Modern Machine Shop
However, the right workholding can break down these barriers, says Matt Saccomanno, CEO of Masa Tool (Oceanside, California). Founded in the wake of Mr. Saccomanno’s own frustration with secondary operations and underutilization of subpsindles, Masa Tool offers the Microconic system, an alternative to traditional, extended-nose collet designs that applies force closer to the part for greater rigidity and concentricity—advantages that extend to main-spindle operations as well. Another benefit is the ability to adjust clamping pressure at the spindle nose to grip securely without damaging small, fragile workpieces. On the efficiency front, a collet in one size can be swapped for another without reaching anywhere beyond the spindle nose, and any collet can fit multiple draw-type or push-type machine collet closers. This saves time and eliminates the need for different collet series for different machines. |
The Microconic system consists of two primary components: a cartridge that fits in the machine’s standard 5C, TF20 or TF25 collet closer, and the Microconic collet itself, which fits into the cartridge. Collets accommodate workpiece diameters ranging from 0.008 inch (0.2 mm) to 0.394 inch (10 mm). Total indicator runout (TIR) is guaranteed at 0.0002 inch (5 microns) at the workpiece, absent any runout introduced by the machine structure or other elements of the setup, Mr. Saccomanno says. He adds that the cartridge can be used as a precision gage to calibrate spindle accuracy. |
There’s no “feel” involved in tightening the collet, he says. That’s a task accomplished with the company’s Micrograd wrench, which features micrometer graduations of 0.001 inch (0.02 mm) to aid users in dialing in the perfect closure on either a workpiece or a gage pin of the same size. This configuration relegates the machine’s own clamping mechanism to the role of an actuator that triggers the opening or closing of the collet. As such, he advises keeping the machine’s own function at a medium force setting and allowing the Microconic cartridge to control the actual chucking force. Machined from a single piece of hardened steel, the cartridge preserves the dead-length operation of “push-type” collet systems (that is, the collet itself doesn’t move in or out as the machine cartridge actuates the chuck). |
He credits much of that precision to the fact that clamping force is applied directly over the workpiece, a contrast with traditional extended-nose designs that apply force farther back. He also credits the manufacturing process. Tapering collet jaws to interface with the machine is nothing unusual. However, Masa Tool employs a proprietary, five-step grinding process that leaves each jaw with a particularly precise conical shape (hence the name “Microconic”) that forms a particularly tight fit. More specifically, a “slight crown” ensures that the contact point is always centered, he explains, citing the pattern of wear marks on well-used collets as evidence. |
Gripping wasn’t the company’s only focus when designing the Micronic system. Reliable part ejection is also critical, Mr. Saccomanno says, particularly with overgrip collets that offer such a wide gripping range. That’s why overgrip models ship with a Microject, a brass ejection guide sleeve that can be machined to mirror the outer profile of the workpiece. Once threaded into the over-grip collet, the sleeve prevents parts from falling inside the chuck or getting stuck rather than ejecting into the parts catcher. The sleeve also provides a tight seal that improves the ability of through-spindle coolant or shop air to aid in part ejection. |
The Microconic system comes with a Micrograd face-dial wrench providing operators full control of setting the chucking pressure. Operators no longer need to rely on the “feel” involved in tightening the collet. The Micrograd features micrometer like graduations of 0.001"/0.02 mm to aid operators in "dialing in" the perfect closure on a workpiece.
Author
Here you will find the latest press releases, news coverage and technical information about our Microconic™ system
Archives
February 2023
November 2022
October 2022
September 2022
August 2022
July 2022
June 2022
May 2022
April 2022
March 2022
January 2022
October 2021
May 2021
July 2020
March 2020
February 2020
December 2019
March 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
May 2015
April 2015
August 2014
May 2014
March 2014
July 1999
Categories
All
5C Cartridge
5C Collet
Advanced Manufacturing
Advertisement
Agent Profile
AMTS
APT Machine Tools
Avinger
Bell Mouthing
Bone Screws
Case Study
Catalog
CEO CFO
Chip Wrapping
Cincom
Cincom L12
Cincom L20
Cincom M16
Cincom M32
CNC West
Collet
Concentricity
Dental Implants
Dragan Marjanovic
Dunner SA
Eastec
Ejection Guide Sleeve
Emergency Collet
F13M5
F15M5
F16M5
F201M10
F20M10
F37M10
Floyd Automatic
Ganesh
High Tech Industrial
IMTS
ISwiss
Jones Marketing
Lane 4
Machinery Trade International
Magazine Article
Mann Sales
Marubeni Citizen
Material: 6Al4V
MAV Innovations
Metal Cutting Corp
Microconic
Micrograd Wrench
Microguide Sleeve
Micromachining
Micro-Matics
Modern Machine Shop
Morris South
NETC
Next Generation Tooling
Oceanside Facility
Oktoberfest
Open House
Overgrip Collet
Part: Counterbore Drills
Part: Dental Drills
Part: Dental Impant
Part: Medical Device
Part: Surgical Drills
Part: Surgical Taps
PMTS
Press Release
Production Machining
Productivity Inc.
Ram Sales & Marketing
Schlenker
SIAMS
South Tec
South- Tec
Star CNC
Star SR20
STEM
Tech Tip
TF15
TF16
TF20
TF25
TF37
Todays Medical Developments
Tool Marketing Service
Trade Show
Trade Shows
Tsugami
UM10
UM10T
UM10W
UM5
UM5T
UM5V
UM5W
Videos
Workpiece Deflection