Cross Slot Patent
- Demonstration of Cross slot drilled wheat into winter barley stubble. Not very orthodox, but it was meant to be an experiment of a cover crop break in between.
- The only known no-tillage technology and system in the world that arose from extensive, independent, published and peer-reviewed biological research. Cross Slot is the only true Ultra-low disturbance (ULD) no-tillage system available worldwide!
- The lift-pin e will now be swung through the rear portion of the cross-slot d by the arm 27. Having thus described my invention, I claim as new and desire to secure by Letters Patent - 1. An automatic device for effecting salutations, comprising power-moved mechanism adapted for removable attachment on the head of a person, and a device in.
Google Patents The invention discloses a drilling machine and particularly discloses a numerical control cross-slot spring-hole drilling machine.
Info
- Publication number
- CN101758263A CN101758263ACN200910019363ACN200910019363ACN101758263ACN 101758263 ACN101758263 ACN 101758263ACN 200910019363 ACN200910019363 ACN 200910019363ACN 200910019363 ACN200910019363 ACN 200910019363ACN 101758263 ACN101758263 ACN 101758263A
- Authority
- CN
- China
- Prior art keywords
- numerical control
- slot spring
- Chinese (zh)
- Inventor
- 曹县精锐机械锁业有限公司
- Priority date (The priority date 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 date listed.)
- Filing date
- Publication date
- Critical曹县精锐机械锁业有限公司
- Criticalpatent/CN101758263A/en
- Criticalpatent/CN101758263A/en
- titleabstract240000006028Sambucus nigraSpecies0.000abstract230000005540biological transmissionEffects0.000description7
- abstract230000003287opticalEffects0.000description4
- abstract238000003754machiningMethods0.000230000003137locomotiveEffects0.000230000001808couplingEffects0.000238000010168coupling processMethods0.000238000005859coupling reactionsMethods0.000238000010586diagramsMethods0.000239000000428dustSubstances0.000238000005516engineering processesMethods0.000239000004973liquid crystal related substancesSubstances0.000238000000034methodsMethods0.000230000001105regulatoryEffects0.000238000003466weldingMethods0.000(1) technical field
The present invention relates to a kind of drilling machine, particularly a kind of numerical control cross-slot spring-hole drilling machine.
(2) background technology
The cross-slot spring lock is a dimensional requirement precision height, the product appearance fineness, and big in batches, production efficiency is wanted high product.Domestic lockmaking producer adopts manual drilling machine boring more, and its precision and efficient are all lower, are difficult to satisfy high-precision product requirement.
(3) summary of the invention
The present invention provides a kind of convenience numerical control cross-slot spring-hole drilling machine efficiently in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
A kind of numerical control cross-slot spring-hole drilling machine, comprise rack section, the seat of honour, drill bit, stand, workbench, work piece holder, gauge tap and operation keyboard, it is characterized in that: on the described workbench work piece holder is installed, work piece holder adopts pneumatic pinch, and described drill bit is installed on the high-speed electric main shaft.
The more excellent technical scheme of the present invention is: described work piece holder is by step footpath driven by motor rotation, and stepper motor is connected with computer, and is connected with high-speed electric main shaft by no gap transmission ball-screw.
The invention has the beneficial effects as follows: adopt the straight line optical axis to cooperate with linear bearing, have step footpath motor to make the workbench front and back in conjunction with no gap transmission ball-screw, side-to-side movement has guaranteed the feed accuracy in the motion, automaticity and production efficiency improve greatly, the machining accuracy height.Also logical step of the rotation of work piece holder footpath motor is realized, but step footpath motor its anglec of rotation of regulated at will and speed under computer control.
(4) description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Accompanying drawing 1 is a main TV structure schematic diagram of the present invention;
Accompanying drawing 2 is a side-looking structural representation of the present invention.
Among the figure, 1 fuselage cradle, 2 frame floors, 3 fuselage seats, 4 workbench, 5 left and right sides transmissions step footpath motor, the 6 corners sensing that resets, 7 corners step footpath motor, 8 anchor clamps, 9 portable lamps, 10 high-speed electric expreess locomotive supports, underdrive step footpath motor on 11,12 computation keyboards, 13 power switches, 14 clamp cylinders, about 15 sensings that reset, 16 computer boxes, 17 pump switch, 18 back orientation sensings, 19 main stakings, 20 high-speed electric main shafts, 21 drill bushings, 22 dust excluding plates, transmission step footpath, 23 front and back motor, 24 shockproof supports.
Cross Slot Patent Case
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises rack section, the seat of honour, stand, workbench, gauge tap and operation keyboard, and the work piece holder part is installed on the described workbench, and work piece holder adopts pneumatic pinch, and step footpath motor is by computer control rotation, the direct clamping drilling bit of electric main shaft.
Adopt the straight line optical axis to cooperate with linear bearing, step footpath motor is arranged in conjunction with no gap transmission ball-screw, make before and after the workbench, side-to-side movement has guaranteed the feed accuracy in the motion, and automaticity and production efficiency improve greatly, the machining accuracy height.
Primary structure of the present invention:
1, the fuselage cradle part
By welding stand 1, frame floor 2 and shockproof support bar are formed.
2, running part
By going on foot footpath motor 11 up and down, front and back step footpath motor 23, anchor clamps rotate and go on foot footpath motor 7, jockey, and high-speed electric main shaft 20 is formed.
Moving up and down of high-speed electric expreess locomotive is to engage turn-screw by last underdrive step footpath motor 11 to realize.
It is that forward back transmission step footpath motor engages the turn-screw realization that workbench seesaws.
The side-to-side movement of the workbench footpath motor of right step that keeps left engages turn-screw and realizes that the rotation of anchor clamps engages shaft coupling and change-speed gearing realization by corner step footpath motor.
3, the work piece holder part
Work piece holder 8 be installed in workbench 4. anchor clamps can divide according to the lock body size customized, pneumatic pinch.
4, computer control part
Power switch 13 and operation keyboard display screen 12 are installed on the bracing frame, are the main operation parts of computer control, and computer box is installed in the fuselage cradle right side, in computer controller and motor driver etc. are arranged.
(5) characteristics of this lathe
1: this machine adopted straight line optical axis cooperates with linear bearing, engaged by step footpath motor that the gapless driving leading screw drives anchor clamps and drill bit is done up and down motion all around, the feed accuracy of the work piece holder that has guaranteed.
2: adopt step footpath motor to make the anchor clamps Arbitrary Rotation in conjunction with change-speed gearing.
3: by the direct clamping drilling bit of high-speed electric main shaft, guaranteed the stability of its drill bit.
4: Workpiece clamping adopts pneumatic means, the operating efficiency of assurance and clamping and reliability.
5: by computer control setting program, to the arbitrary initial location of product. the centre-to-centre spacing of boring, process velocity, the delay of hole depth and time can free adjustment.
6: the size of anchor clamps and specification can be processed according to requirement of client.
7: display screen adopts liquid crystal panel, and menu in Chinese is convenient understandable, shows configuration information and machining information etc., and the administrator's password protection is arranged, and makes things convenient for production management.
Claims (2)
1. numerical control cross-slot spring-hole drilling machine, comprise rack section, the seat of honour, drill bit, stand, workbench, work piece holder, gauge tap and operation keyboard, it is characterized in that: on the described workbench work piece holder is installed, work piece holder adopts pneumatic pinch, and described drill bit is installed on the high-speed electric main shaft.2. numerical control cross-slot spring-hole drilling machine according to claim 1, it is characterized in that: described work piece holder is by step footpath driven by motor rotation, described workbench links to each other with no gap ball-screw, and ball-screw is by the stepper motor driven rotary, and step footpath motor links to each other with computer.CN200910019363A2009-10-222009-10-22Numerical control cross-slot spring-hole drilling machine CN101758263A (en) Priority Applications (1)
Application Number Priority Date Filing Date Title CN200910019363ACN101758263A (en) 2009-10-22 2009-10-22 Numerical control cross-slot spring-hole drilling machine Publications (1)
Publication Number Publication Date CN200910019363ACN101758263A (en) 2009-10-22 2009-10-22 Numerical control cross-slot spring-hole drilling machine Country Status (1)
Country Link CN102773512A (en) * 2012-07-23 2012-11-14 安徽奇峰机械装备有限公司 Numerically-controlled part drilling equipment CN102773511A (en) * 2012-07-23 2012-11-14 安徽奇峰机械装备有限公司 Drilling device CN104923830A (en) * 2015-06-23 2015-09-23 张伟飞 Workpiece punching device CN108031901A (en) * 2017-10-26 2018-05-15 深圳市佰士晟科技有限公司 A kind of drilling equipment of universal machine accessory - 2009-10-22CNCN200910019363Apatent/CN101758263A/ennot_activeApplication Discontinuation
- ^ abcdefgMilligan, Thomas (2005). '5 - Dipoles, Slots and Loops'. Modern Antenna Design (2nd ed.). Hoboken, New Jersey: John Wiley & Sons, Inc. pp. 231–237. ISBN978-0-471-45776-3.
- ^ abcBrown, George. 'US Patent 2086976'. Antenna system. Retrieved 14 January 2014. filed: September 20, 1935; granted: July 13, 1937
- ^ abcdefghiKraus, John (1988). '16: Antennas for Special Applications: Feeding Applications'. Antennas (2nd ed.). McGraw-Hill, Inc. pp. 726–729. ISBN0-07-035422-7.
- ^Brown, George (April 1936). 'The Turnstile Antenna'. Electronics.
- ^'Patents about Turnstile Antennas'.
- ^ abcMartin, John (1952). '[Missile] Antenna'. Retrieved 15 January 2014.
- ^Masters, Robert (1945). '[Batwing] Antenna'. Retrieved 15 January 2014.
- ^Whitaker, Jerry (1996). 'Antennas for Specific Applications'. In Jerry Whitaker (ed.). The Electronics Handbook. CRC Press, Inc. p. 1341. ISBN0-8493-8345-5.
The turnstile is the earliest and most popular resonant antenna for VHF broadcasting.
Links
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773514A (en) * | 2012-07-23 | 2012-11-14 | 安徽奇峰机械装备有限公司 | Digital controlled drilling equipment |
| CN102785120A (en) * | 2012-07-23 | 2012-11-21 | 安徽奇峰机械装备有限公司 | Part feeding tool |
| CN106694947A (en) * | 2017-02-09 | 2017-05-24 | 中山迈雷特数控技术有限公司 | Numerical control annular die drilling machine |
| CN108031901A (en) * | 2017-10-26 | 2018-05-15 | 深圳市佰士晟科技有限公司 | A kind of drilling equipment of universal machine accessory |
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| RJ01 | Rejection of invention patent application after publication | History[edit]The turnstile antenna was invented by George Brown in 1935[2] and described in scholarship in 1936.[4] The patent history reveals the popularity of the turnstile antenna over the years.[5] Characteristics[edit](left) First turnstile antenna, a normal-mode array built by station W8XH, Buffalo, NY, in 1936 that broadcast on 41 MHz (center) Normal-mode turnstile (lower antenna) on the Empire State Building in New York City for NBC's experimental 46.5 MHz TV station W2XBS in 1939. The cigar-shaped elements gave the antenna a wider bandwidth of 30 MHz necessary for TV transmission. (right) Specialized type of normal mode turnstile antenna used for television broadcasting, called a superturnstile or batwing antenna The antenna can be used in two different modes: normal mode and axial mode.[citation needed] Normal mode[edit]In directions perpendicular to its axis the antenna radiates linearly polarized radio waves (horizontally polarized when the antenna's axis is vertical). This is called normal mode. The radiation pattern, a superposition of the two dipole patterns, is close to omnidirectional but actually 'cloverleaf shaped', with four small maxima off the ends of the elements. The pattern departs from omnidirectional by only ±5 percent.[3] The radiation in these horizontal directions is often increased by vertically stacking multiple turnstile antennas (called 'bays') fed in phase. This increases the gain by strengthening the radiation in the desired horizontal directions but causes partial cancellation of the radiation in vertical directions, reducing power wasted radiated into the sky or down toward the earth. These stacked normal mode turnstile antennas are used at VHF and UHF frequencies for FM and television broadcasting. Since the first turnstiles invented by Brown operated in this mode, the normal mode turnstile is occasionally called the George Brown turnstile antenna.[3] Axial mode[edit]Array of 4 axial-mode turnstiles for portable military satellite communication terminal  Off the ends of the antenna's axis, perpendicular to the plane of the elements, the antenna radiates circularly-polarized (CP) radio waves. This is called axial mode. The radiation off one end is righthand-circularly-polarized and the other end is lefthand-circularly-polarized. Which end produces which polarization is determined by the phase of the feed connections. Since in a directional antenna only a single beam is wanted, in a simple axial-mode antenna a flat conducting surface such as a metal screen reflector is added, a quarter-wavelength behind the crossed elements.[1] The waves in that direction are reflected back 180° and the reflection reverses the polarization sense, so the reflected waves reinforce the forward radiation.[1] For example, if the radio waves radiated forward are right-circularly-polarized, the waves radiated backwards will be left-circularly-polarized. The flat reflector reverses the polarization sense so the reflected waves are right-circularly-polarized. By locating the reflector λ/4 behind the elements the direct and reflected waves are in phase and add. Addition of the reflector increases the axial radiation by a factor of 2 (3 dB). Another common way to increase the axial mode radiation is to replace each dipole with a Yagi array. In a circularly polarized antenna, it is important that the direction of polarization of the transmitting and receiving antennas be the same, since a right-circularly-polarized antenna will suffer a severe loss of gain receiving left-circularly-polarized radio waves, and vice versa. Axial mode turnstile antennas are often used for satellite and missile antennas,[6] since circular polarization is used in satellite communication.[citation needed] This is because with circularly polarized waves the relative orientation of the antenna elements does not affect the gain. Feeding the antenna[edit]For the antenna to function, the two dipoles must be fed with currents of equal magnitude in phase quadrature, meaning the phase of the sine waves must be 90° apart.[3] This is done with feed-line techniques or by adding reactance in series with the dipoles.[3] Quadrature feed[edit]Cross Slot Patent WalletA popular method of feeding the two dipoles in a turnstile antenna is to split the RF signal from the transmission line into two equal signals with a two way splitter, then delay one by 90 degrees additional electrical length. Each phase is applied to one of the dipoles.[3] Modified dipole dimensions[edit]By modifying the length and shape of the dipoles, the combined terminal impedance presented to a single feed-point can achieve pure resistance and yield quadrature currents in each dipole.[3][6] This method of changing the physical dimensions of the antenna element to yield quadrature currents is known as turnstile feeding.[1] Applications[edit]Stacked arrays[edit]Brown's original patent described stacking multiple turnstile antennas vertically to make a high gain horizontally polarized omnidirectional antenna for radio broadcasting.[3][2] These were used for some of the first FM broadcasting antennas in the 1930s. However most modern FM broadcast antennas use circular polarization so the signal strength will not vary with the orientation of the receiver's antenna. Batwing or superturnstile array[edit]A later innovation involved changing the shape of the dipole elements, from simple rods to broader shapes, to increase the bandwidth of the antenna.[7] Early TV broadcast antennas used 'cigar shaped' elements, shown in image of 1939 RCA Empire State Building antenna above. A common shape today is the batwing or superturnstile antenna, used for television broadcasting in the VHF or UHF bands[8] The batwing shape of each element produces an antenna with wide impedance bandwidth.[1] Up to eight batwing antennas are usually stacked vertically and fed in phase to make a high gain omnidirectional antenna for TV broadcasting.[3][1] The wide bandwidth was needed at the low VHF analog TV broadcast band, as the 6 MHz TV channel bandwidth was about 10% of the frequency.[1] Spacecraft antennas[edit]Circular polarization was used for spacecraft (satellite and missile) communication, since circular polarization is not sensitive to the relative orientation of the antennas, and the space vehicle's antenna could have any orientation with respect to the ground antenna. High gain Yagi turnstile antennas were often used for the ground station. The US Nike missile program made use of the axial mode for telemetry and used the modified dipole technique to force the quadrature currents.[6] External links[edit]References[edit]Retrieved from 'https://en.wikipedia.org/w/index.php?title=Turnstile_antenna&oldid=962607013' |